commit dd3f408ff90b5a247eae71eeb1cf0675165d44c2 Author: lishenfeng Date: Mon May 19 14:26:18 2025 +0800 init(): 初始化 diff --git a/.env.production b/.env.production new file mode 100644 index 0000000..4f79a0f --- /dev/null +++ b/.env.production @@ -0,0 +1 @@ +GENERATE_SOURCEMAP=false \ No newline at end of file diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..4d29575 --- /dev/null +++ b/.gitignore @@ -0,0 +1,23 @@ +# See https://help.github.com/articles/ignoring-files/ for more about ignoring files. + +# dependencies +/node_modules +/.pnp +.pnp.js + +# testing +/coverage + +# production +/build + +# misc +.DS_Store +.env.local +.env.development.local +.env.test.local +.env.production.local + +npm-debug.log* +yarn-debug.log* +yarn-error.log* diff --git a/craco.config.js b/craco.config.js new file mode 100644 index 0000000..0b17bd0 --- /dev/null +++ b/craco.config.js @@ -0,0 +1,19 @@ +const CracoLessPlugin = require('craco-less'); + +module.exports = { + plugins: [ + { + plugin: CracoLessPlugin, + options: { + lessLoaderOptions: { + lessOptions: { + modifyVars: { + '@layout-header-background': '#061436', + }, + javascriptEnabled: true, + }, + }, + }, + }, + ], +}; diff --git a/debug.log b/debug.log new file mode 100644 index 0000000..4abc6b0 --- /dev/null +++ b/debug.log @@ -0,0 +1,6 @@ +[1114/095321.464:ERROR:directory_reader_win.cc(43)] FindFirstFile: ϵͳҲָ· (0x3) +[1116/091828.461:ERROR:directory_reader_win.cc(43)] FindFirstFile: ϵͳҲָ· (0x3) +[1117/102526.529:ERROR:directory_reader_win.cc(43)] FindFirstFile: ϵͳҲָ· (0x3) +[1125/095515.441:ERROR:directory_reader_win.cc(43)] FindFirstFile: ϵͳҲָ· (0x3) +[1214/094537.239:ERROR:directory_reader_win.cc(43)] FindFirstFile: ϵͳҲָ· (0x3) +[1215/094539.088:ERROR:directory_reader_win.cc(43)] FindFirstFile: ϵͳҲָ· (0x3) diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..4a04a93 --- /dev/null +++ b/package-lock.json @@ -0,0 +1,18687 @@ +{ + "name": "hplcs-web", + "version": 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width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23333'%3E%3Cpath d='M14.5 8.5c-.75 0-1.5.75-1.5 1.5v3h-3c-.75 0-1.5.75-1.5 1.5S9.25 16 10 16h3v3c0 .75.75 1.5 1.5 1.5S16 19.75 16 19v-3h3c.75 0 1.5-.75 1.5-1.5S19.75 13 19 13h-3v-3c0-.75-.75-1.5-1.5-1.5z'/%3E%3C/svg%3E")}@media (-ms-high-contrast:active){.mapboxgl-ctrl button.mapboxgl-ctrl-zoom-out .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23fff'%3E%3Cpath d='M10 13c-.75 0-1.5.75-1.5 1.5S9.25 16 10 16h9c.75 0 1.5-.75 1.5-1.5S19.75 13 19 13h-9z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-zoom-in .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23fff'%3E%3Cpath d='M14.5 8.5c-.75 0-1.5.75-1.5 1.5v3h-3c-.75 0-1.5.75-1.5 1.5S9.25 16 10 16h3v3c0 .75.75 1.5 1.5 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.mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23333'%3E%3Cpath d='M24 16v5.5c0 1.75-.75 2.5-2.5 2.5H16v-1l3-1.5-4-5.5 1-1 5.5 4 1.5-3h1zM6 16l1.5 3 5.5-4 1 1-4 5.5 3 1.5v1H7.5C5.75 24 5 23.25 5 21.5V16h1zm7-11v1l-3 1.5 4 5.5-1 1-5.5-4L6 13H5V7.5C5 5.75 5.75 5 7.5 5H13zm11 2.5c0-1.75-.75-2.5-2.5-2.5H16v1l3 1.5-4 5.5 1 1 5.5-4 1.5 3h1V7.5z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-shrink .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M18.5 16c-1.75 0-2.5.75-2.5 2.5V24h1l1.5-3 5.5 4 1-1-4-5.5 3-1.5v-1h-5.5zM13 18.5c0-1.75-.75-2.5-2.5-2.5H5v1l3 1.5L4 24l1 1 5.5-4 1.5 3h1v-5.5zm3-8c0 1.75.75 2.5 2.5 2.5H24v-1l-3-1.5L25 5l-1-1-5.5 4L17 5h-1v5.5zM10.5 13c1.75 0 2.5-.75 2.5-2.5V5h-1l-1.5 3L5 4 4 5l4 5.5L5 12v1h5.5z'/%3E%3C/svg%3E")}@media (-ms-high-contrast:active){.mapboxgl-ctrl button.mapboxgl-ctrl-fullscreen .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23fff'%3E%3Cpath d='M24 16v5.5c0 1.75-.75 2.5-2.5 2.5H16v-1l3-1.5-4-5.5 1-1 5.5 4 1.5-3h1zM6 16l1.5 3 5.5-4 1 1-4 5.5 3 1.5v1H7.5C5.75 24 5 23.25 5 21.5V16h1zm7-11v1l-3 1.5 4 5.5-1 1-5.5-4L6 13H5V7.5C5 5.75 5.75 5 7.5 5H13zm11 2.5c0-1.75-.75-2.5-2.5-2.5H16v1l3 1.5-4 5.5 1 1 5.5-4 1.5 3h1V7.5z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-shrink .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23fff'%3E%3Cpath d='M18.5 16c-1.75 0-2.5.75-2.5 2.5V24h1l1.5-3 5.5 4 1-1-4-5.5 3-1.5v-1h-5.5zM13 18.5c0-1.75-.75-2.5-2.5-2.5H5v1l3 1.5L4 24l1 1 5.5-4 1.5 3h1v-5.5zm3-8c0 1.75.75 2.5 2.5 2.5H24v-1l-3-1.5L25 5l-1-1-5.5 4L17 5h-1v5.5zM10.5 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height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M10.5 14l4-8 4 8h-8z'/%3E%3Cpath d='M10.5 16l4 8 4-8h-8z' fill='%23ccc'/%3E%3C/svg%3E")}}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23333'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3Ccircle cx='10' cy='10' r='2'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate:disabled .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23aaa'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 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9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3Ccircle cx='10' cy='10' r='2'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate.mapboxgl-ctrl-geolocate-background .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%2333b5e5'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate.mapboxgl-ctrl-geolocate-background-error .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23e54e33'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate.mapboxgl-ctrl-geolocate-waiting .mapboxgl-ctrl-icon{-webkit-animation:mapboxgl-spin 2s linear infinite;-moz-animation:mapboxgl-spin 2s infinite linear;-o-animation:mapboxgl-spin 2s infinite linear;-ms-animation:mapboxgl-spin 2s infinite linear;animation:mapboxgl-spin 2s linear infinite}@media (-ms-high-contrast:active){.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23fff'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3Ccircle cx='10' cy='10' r='2'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate:disabled .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23999'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3Ccircle cx='10' cy='10' r='2'/%3E%3Cpath d='M14 5l1 1-9 9-1-1 9-9z' fill='red'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate.mapboxgl-ctrl-geolocate-active .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%2333b5e5'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 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e=t.key,r=t.value,i=t.valueSpec||{},n=t.objectElementValidators||{},s=t.style,a=t.styleSpec;let o=[];const l=jr(r);if("object"!==l)return [new Ut(e,r,`object expected, ${l} found`)];for(const t in r){const l=t.split(".")[0],u=i[l]||i["*"];let c;if(n[l])c=n[l];else if(i[l])c=Mi;else if(n["*"])c=n["*"];else {if(!i["*"]){o.push(new Ut(e,r[t],`unknown property "${t}"`));continue}c=Mi;}o=o.concat(c({key:(e?`${e}.`:e)+t,value:r[t],valueSpec:u,style:s,styleSpec:a,object:r,objectKey:t},r));}for(const t in i)n[t]||i[t].required&&void 0===i[t].default&&void 0===r[t]&&o.push(new Ut(e,r,`missing required property "${t}"`));return o}function ai(t){const e=t.value,r=t.valueSpec,i=t.style,n=t.styleSpec,s=t.key,a=t.arrayElementValidator||Mi;if("array"!==jr(e))return [new Ut(s,e,`array expected, ${jr(e)} found`)];if(r.length&&e.length!==r.length)return [new Ut(s,e,`array length ${r.length} expected, length ${e.length} found`)];if(r["min-length"]&&e.lengthi.maximum?[new Ut(e,r,`${r} is greater than the 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Ut(t.key,t.value,'missing required property "stops"')),"exponential"===r&&t.valueSpec.expression&&!Nr(t.valueSpec)&&c.push(new Ut(t.key,t.value,"exponential functions not supported")),t.styleSpec.$version>=8&&(l&&!$r(t.valueSpec)?c.push(new Ut(t.key,t.value,"property functions not supported")):o&&!qr(t.valueSpec)&&c.push(new Ut(t.key,t.value,"zoom functions not supported"))),"categorical"!==r&&!u||void 0!==t.value.property||c.push(new Ut(t.key,t.value,'"property" property is required')),c;function h(t){let r=[];const i=t.value,o=t.key;if("array"!==jr(i))return [new Ut(o,i,`array expected, ${jr(i)} found`)];if(2!==i.length)return [new Ut(o,i,`array length 2 expected, length ${i.length} found`)];if(u){if("object"!==jr(i[0]))return [new Ut(o,i,`object expected, ${jr(i[0])} found`)];if(void 0===i[0].zoom)return [new Ut(o,i,"object stop key must have zoom")];if(void 0===i[0].value)return [new Ut(o,i,"object stop key must have value")];if(s&&s>qt(i[0].zoom))return [new Ut(o,i[0].zoom,"stop 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Output values must be contained as literals within the expression.`)];if("property"===t.expressionContext&&"layout"===t.propertyType&&!Xe(r))return [new Ut(t.key,t.value,'"feature-state" data expressions are not supported with layout properties.')];if("filter"===t.expressionContext&&!Xe(r))return [new Ut(t.key,t.value,'"feature-state" data expressions are not supported with filters.')];if(t.expressionContext&&0===t.expressionContext.indexOf("cluster")){if(!Ge(r,["zoom","feature-state"]))return [new Ut(t.key,t.value,'"zoom" and "feature-state" expressions are not supported with cluster properties.')];if("cluster-initial"===t.expressionContext&&!Ze(r))return [new Ut(t.key,t.value,"Feature data expressions are not supported with initial expression part of cluster properties.")]}return []}function ci(t){const e=t.key,r=t.value,i=t.valueSpec,n=[];return Array.isArray(i.values)?-1===i.values.indexOf(qt(r))&&n.push(new Ut(e,r,`expected one of [${i.values.join(", ")}], ${JSON.stringify(r)} 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{filter:(t,r,i)=>e.value.evaluate(t,r,{},i),needGeometry:function t(e){if(!Array.isArray(e))return !1;if("within"===e[0])return !0;for(let r=1;re?1:0}function yi(t){if(!t)return !0;const e=t[0];return t.length<=1?"any"!==e:"=="===e?mi(t[1],t[2],"=="):"!="===e?vi(mi(t[1],t[2],"==")):"<"===e||">"===e||"<="===e||">="===e?mi(t[1],t[2],e):"any"===e?(r=t.slice(1),["any"].concat(r.map(yi))):"all"===e?["all"].concat(t.slice(1).map(yi)):"none"===e?["all"].concat(t.slice(1).map(yi).map(vi)):"in"===e?gi(t[1],t.slice(2)):"!in"===e?vi(gi(t[1],t.slice(2))):"has"===e?xi(t[1]):"!has"===e?vi(xi(t[1])):"within"!==e||t;var r;}function mi(t,e,r){switch(t){case"$type":return [`filter-type-${r}`,e];case"$id":return [`filter-id-${r}`,e];default:return [`filter-${r}`,t,e]}}function gi(t,e){if(0===e.length)return !1;switch(t){case"$type":return ["filter-type-in",["literal",e]];case"$id":return ["filter-id-in",["literal",e]];default:return e.length>200&&!e.some(t=>typeof t!=typeof 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e)r.push(...Si({key:`${t}.${i}`,value:e[i]}));return r}}};function Ti(t){const e=t.value,r=t.key,i=t.styleSpec,n=t.style;if(!e.type)return [new Ut(r,e,'"type" is required')];const s=qt(e.type);let a;switch(s){case"vector":case"raster":case"raster-dem":return a=si({key:r,value:e,valueSpec:i[`source_${s.replace("-","_")}`],style:t.style,styleSpec:i,objectElementValidators:Ii}),a;case"geojson":if(a=si({key:r,value:e,valueSpec:i.source_geojson,style:n,styleSpec:i,objectElementValidators:Ii}),e.cluster)for(const t in e.clusterProperties){const[i,n]=e.clusterProperties[t],s="string"==typeof i?[i,["accumulated"],["get",t]]:i;a.push(...ui({key:`${r}.${t}.map`,value:n,expressionContext:"cluster-map"})),a.push(...ui({key:`${r}.${t}.reduce`,value:s,expressionContext:"cluster-reduce"}));}return a;case"video":return si({key:r,value:e,valueSpec:i.source_video,style:n,styleSpec:i});case"image":return si({key:r,value:e,valueSpec:i.source_image,style:n,styleSpec:i});case"canvas":return [new Ut(r,null,"Please use runtime APIs to add canvas sources, rather than including them in stylesheets.","source.canvas")];default:return ci({key:`${r}.type`,value:e.type,valueSpec:{values:["vector","raster","raster-dem","geojson","video","image"]},style:n,styleSpec:i})}}function zi(t){const e=t.value,r=t.styleSpec,i=r.light,n=t.style;let s=[];const a=jr(e);if(void 0===e)return s;if("object"!==a)return s=s.concat([new Ut("light",e,`object expected, ${a} found`)]),s;for(const t in e){const a=t.match(/^(.*)-transition$/);s=s.concat(a&&i[a[1]]&&i[a[1]].transition?Mi({key:t,value:e[t],valueSpec:r.transition,style:n,styleSpec:r}):i[t]?Mi({key:t,value:e[t],valueSpec:i[t],style:n,styleSpec:r}):[new Ut(t,e[t],`unknown property "${t}"`)]);}return s}function Ei(t){const e=t.value,r=t.key,i=t.style,n=t.styleSpec,s=n.terrain;let a=[];const o=jr(e);if(void 0===e)return a;if("object"!==o)return a=a.concat([new Ut("terrain",e,`object expected, ${o} found`)]),a;for(const t in e){const r=t.match(/^(.*)-transition$/);a=a.concat(r&&s[r[1]]&&s[r[1]].transition?Mi({key:t,value:e[t],valueSpec:n.transition,style:i,styleSpec:n}):s[t]?Mi({key:t,value:e[t],valueSpec:s[t],style:i,styleSpec:n}):[new Ut(t,e[t],`unknown property "${t}"`)]);}if(e.source){const t=i.sources&&i.sources[e.source],n=t&&qt(t.type);t?"raster-dem"!==n&&a.push(new Ut(r,e.source,`terrain cannot be used with a source of type ${n}, it only be used with a "raster-dem" source type`)):a.push(new Ut(r,e.source,`source "${e.source}" not found`));}else a.push(new Ut(r,e,'terrain is missing required property "source"'));return a}const Ci={"*":()=>[],array:ai,boolean:function(t){const e=t.value,r=t.key,i=jr(e);return "boolean"!==i?[new Ut(r,e,`boolean expected, ${i} found`)]:[]},number:oi,color:function(t){const e=t.key,r=t.value,i=jr(r);return "string"!==i?[new Ut(e,r,`color expected, ${i} found`)]:null===le(r)?[new Ut(e,r,`color expected, "${r}" found`)]:[]},constants:Ot,enum:ci,filter:bi,function:li,layer:ki,object:si,source:Ti,light:zi,terrain:Ei,string:Si,formatted:function(t){return 0===Si(t).length?[]:ui(t)},resolvedImage:function(t){return 0===Si(t).length?[]:ui(t)}};function Mi(t){const e=t.value,r=t.valueSpec,i=t.styleSpec;return r.expression&&Kr(qt(e))?li(t):r.expression&&Qr(Nt(e))?ui(t):r.type&&Ci[r.type]?Ci[r.type](t):si($t({},t,{valueSpec:r.type?i[r.type]:r}))}function Bi(t){const e=t.value,r=t.key,i=Si(t);return i.length||(-1===e.indexOf("{fontstack}")&&i.push(new Ut(r,e,'"glyphs" url must include a "{fontstack}" token')),-1===e.indexOf("{range}")&&i.push(new Ut(r,e,'"glyphs" url must include a "{range}" token'))),i}function Di(t,e=Lt){let r=[];return r=r.concat(Mi({key:"",value:t,valueSpec:e.$root,styleSpec:e,style:t,objectElementValidators:{glyphs:Bi,"*":()=>[]}})),t.constants&&(r=r.concat(Ot({key:"constants",value:t.constants,style:t,styleSpec:e}))),Pi(r)}function Pi(t){return [].concat(t).sort((t,e)=>t.line-e.line)}function Vi(t){return function(...e){return Pi(t.apply(this,e))}}Di.source=Vi(Ti),Di.light=Vi(zi),Di.terrain=Vi(Ei),Di.layer=Vi(ki),Di.filter=Vi(bi),Di.paintProperty=Vi(_i),Di.layoutProperty=Vi(Ai);const Fi=Di,Ri=Fi.light,Li=Fi.paintProperty,Ui=Fi.layoutProperty;function Oi(t,e){let r=!1;if(e&&e.length)for(const i of e)t.fire(new Ft(new Error(i.message))),r=!0;return r}var $i=qi;function qi(t,e,r){var i=this.cells=[];if(t instanceof ArrayBuffer){this.arrayBuffer=t;var n=new Int32Array(this.arrayBuffer);t=n[0],this.d=(e=n[1])+2*(r=n[2]);for(var s=0;s=c[d+0]&&i>=c[d+1])?(a[p]=!0,s.push(u[p])):a[p]=!1;}}},qi.prototype._forEachCell=function(t,e,r,i,n,s,a,o){for(var l=this._convertToCellCoord(t),u=this._convertToCellCoord(e),c=this._convertToCellCoord(r),h=this._convertToCellCoord(i),p=l;p<=c;p++)for(var d=u;d<=h;d++){var f=this.d*d+p;if((!o||o(this._convertFromCellCoord(p),this._convertFromCellCoord(d),this._convertFromCellCoord(p+1),this._convertFromCellCoord(d+1)))&&n.call(this,t,e,r,i,f,s,a,o))return}},qi.prototype._convertFromCellCoord=function(t){return (t-this.padding)/this.scale},qi.prototype._convertToCellCoord=function(t){return Math.max(0,Math.min(this.d-1,Math.floor(t*this.scale)+this.padding))},qi.prototype.toArrayBuffer=function(){if(this.arrayBuffer)return this.arrayBuffer;for(var t=this.cells,e=3+this.cells.length+1+1,r=0,i=0;i=0)continue;const s=t[r];n[r]=Ki[i].shallow.indexOf(r)>=0?s:Hi(s,e);}t instanceof Error&&(n.message=t.message);}if(n.$name)throw new Error("$name property is reserved for worker serialization logic.");return "Object"!==i&&(n.$name=i),n}throw new Error(`can't serialize object of type ${typeof t}`)}function Ji(t){if(null==t||"boolean"==typeof t||"number"==typeof t||"string"==typeof t||t instanceof Boolean||t instanceof Number||t instanceof String||t instanceof Date||t instanceof RegExp||Xi(t)||Gi(t)||ArrayBuffer.isView(t)||t instanceof Ni)return t;if(Array.isArray(t))return t.map(Ji);if("object"==typeof t){const e=t.$name||"Object",{klass:r}=Ki[e];if(!r)throw new Error(`can't deserialize unregistered class ${e}`);if(r.deserialize)return r.deserialize(t);const i=Object.create(r.prototype);for(const r of Object.keys(t)){if("$name"===r)continue;const n=t[r];i[r]=Ki[e].shallow.indexOf(r)>=0?n:Ji(n);}return i}throw new Error(`can't deserialize object of type ${typeof t}`)}class Yi{constructor(){this.first=!0;}update(t,e){const r=Math.floor(t);return this.first?(this.first=!1,this.lastIntegerZoom=r,this.lastIntegerZoomTime=0,this.lastZoom=t,this.lastFloorZoom=r,!0):(this.lastFloorZoom>r?(this.lastIntegerZoom=r+1,this.lastIntegerZoomTime=e):this.lastFloorZoomt>=128&&t<=255,Arabic:t=>t>=1536&&t<=1791,"Arabic Supplement":t=>t>=1872&&t<=1919,"Arabic Extended-A":t=>t>=2208&&t<=2303,"Hangul Jamo":t=>t>=4352&&t<=4607,"Unified Canadian Aboriginal Syllabics":t=>t>=5120&&t<=5759,Khmer:t=>t>=6016&&t<=6143,"Unified Canadian Aboriginal Syllabics Extended":t=>t>=6320&&t<=6399,"General Punctuation":t=>t>=8192&&t<=8303,"Letterlike Symbols":t=>t>=8448&&t<=8527,"Number Forms":t=>t>=8528&&t<=8591,"Miscellaneous Technical":t=>t>=8960&&t<=9215,"Control Pictures":t=>t>=9216&&t<=9279,"Optical Character Recognition":t=>t>=9280&&t<=9311,"Enclosed Alphanumerics":t=>t>=9312&&t<=9471,"Geometric Shapes":t=>t>=9632&&t<=9727,"Miscellaneous Symbols":t=>t>=9728&&t<=9983,"Miscellaneous Symbols and Arrows":t=>t>=11008&&t<=11263,"CJK Radicals Supplement":t=>t>=11904&&t<=12031,"Kangxi Radicals":t=>t>=12032&&t<=12255,"Ideographic Description Characters":t=>t>=12272&&t<=12287,"CJK Symbols and Punctuation":t=>t>=12288&&t<=12351,Hiragana:t=>t>=12352&&t<=12447,Katakana:t=>t>=12448&&t<=12543,Bopomofo:t=>t>=12544&&t<=12591,"Hangul Compatibility Jamo":t=>t>=12592&&t<=12687,Kanbun:t=>t>=12688&&t<=12703,"Bopomofo Extended":t=>t>=12704&&t<=12735,"CJK Strokes":t=>t>=12736&&t<=12783,"Katakana Phonetic Extensions":t=>t>=12784&&t<=12799,"Enclosed CJK Letters and Months":t=>t>=12800&&t<=13055,"CJK Compatibility":t=>t>=13056&&t<=13311,"CJK Unified Ideographs Extension A":t=>t>=13312&&t<=19903,"Yijing Hexagram Symbols":t=>t>=19904&&t<=19967,"CJK Unified Ideographs":t=>t>=19968&&t<=40959,"Yi Syllables":t=>t>=40960&&t<=42127,"Yi Radicals":t=>t>=42128&&t<=42191,"Hangul Jamo Extended-A":t=>t>=43360&&t<=43391,"Hangul Syllables":t=>t>=44032&&t<=55215,"Hangul Jamo Extended-B":t=>t>=55216&&t<=55295,"Private Use Area":t=>t>=57344&&t<=63743,"CJK Compatibility Ideographs":t=>t>=63744&&t<=64255,"Arabic Presentation Forms-A":t=>t>=64336&&t<=65023,"Vertical Forms":t=>t>=65040&&t<=65055,"CJK Compatibility Forms":t=>t>=65072&&t<=65103,"Small Form Variants":t=>t>=65104&&t<=65135,"Arabic Presentation Forms-B":t=>t>=65136&&t<=65279,"Halfwidth and Fullwidth Forms":t=>t>=65280&&t<=65519};function Qi(t){for(const e of t)if(rn(e.charCodeAt(0)))return !0;return !1}function tn(t){for(const e of t)if(!en(e.charCodeAt(0)))return !1;return !0}function en(t){return !(Wi.Arabic(t)||Wi["Arabic Supplement"](t)||Wi["Arabic Extended-A"](t)||Wi["Arabic Presentation Forms-A"](t)||Wi["Arabic Presentation Forms-B"](t))}function rn(t){return !(746!==t&&747!==t&&(t<4352||!(Wi["Bopomofo Extended"](t)||Wi.Bopomofo(t)||Wi["CJK Compatibility Forms"](t)&&!(t>=65097&&t<=65103)||Wi["CJK Compatibility Ideographs"](t)||Wi["CJK Compatibility"](t)||Wi["CJK Radicals Supplement"](t)||Wi["CJK Strokes"](t)||!(!Wi["CJK Symbols and Punctuation"](t)||t>=12296&&t<=12305||t>=12308&&t<=12319||12336===t)||Wi["CJK Unified Ideographs Extension A"](t)||Wi["CJK Unified Ideographs"](t)||Wi["Enclosed CJK Letters and Months"](t)||Wi["Hangul Compatibility Jamo"](t)||Wi["Hangul Jamo Extended-A"](t)||Wi["Hangul Jamo Extended-B"](t)||Wi["Hangul Jamo"](t)||Wi["Hangul Syllables"](t)||Wi.Hiragana(t)||Wi["Ideographic Description Characters"](t)||Wi.Kanbun(t)||Wi["Kangxi Radicals"](t)||Wi["Katakana Phonetic Extensions"](t)||Wi.Katakana(t)&&12540!==t||!(!Wi["Halfwidth and Fullwidth Forms"](t)||65288===t||65289===t||65293===t||t>=65306&&t<=65310||65339===t||65341===t||65343===t||t>=65371&&t<=65503||65507===t||t>=65512&&t<=65519)||!(!Wi["Small Form Variants"](t)||t>=65112&&t<=65118||t>=65123&&t<=65126)||Wi["Unified Canadian Aboriginal Syllabics"](t)||Wi["Unified Canadian Aboriginal Syllabics Extended"](t)||Wi["Vertical Forms"](t)||Wi["Yijing Hexagram Symbols"](t)||Wi["Yi Syllables"](t)||Wi["Yi Radicals"](t))))}function nn(t){return !(rn(t)||function(t){return !!(Wi["Latin-1 Supplement"](t)&&(167===t||169===t||174===t||177===t||188===t||189===t||190===t||215===t||247===t)||Wi["General Punctuation"](t)&&(8214===t||8224===t||8225===t||8240===t||8241===t||8251===t||8252===t||8258===t||8263===t||8264===t||8265===t||8273===t)||Wi["Letterlike Symbols"](t)||Wi["Number Forms"](t)||Wi["Miscellaneous Technical"](t)&&(t>=8960&&t<=8967||t>=8972&&t<=8991||t>=8996&&t<=9e3||9003===t||t>=9085&&t<=9114||t>=9150&&t<=9165||9167===t||t>=9169&&t<=9179||t>=9186&&t<=9215)||Wi["Control Pictures"](t)&&9251!==t||Wi["Optical Character Recognition"](t)||Wi["Enclosed Alphanumerics"](t)||Wi["Geometric Shapes"](t)||Wi["Miscellaneous Symbols"](t)&&!(t>=9754&&t<=9759)||Wi["Miscellaneous Symbols and Arrows"](t)&&(t>=11026&&t<=11055||t>=11088&&t<=11097||t>=11192&&t<=11243)||Wi["CJK Symbols and Punctuation"](t)||Wi.Katakana(t)||Wi["Private Use Area"](t)||Wi["CJK Compatibility Forms"](t)||Wi["Small Form Variants"](t)||Wi["Halfwidth and Fullwidth Forms"](t)||8734===t||8756===t||8757===t||t>=9984&&t<=10087||t>=10102&&t<=10131||65532===t||65533===t)}(t))}function sn(t){return t>=1424&&t<=2303||Wi["Arabic Presentation Forms-A"](t)||Wi["Arabic Presentation Forms-B"](t)}function an(t,e){return !(!e&&sn(t)||t>=2304&&t<=3583||t>=3840&&t<=4255||Wi.Khmer(t))}function on(t){for(const e of t)if(sn(e.charCodeAt(0)))return !0;return !1}let ln=null,un="unavailable",cn=null;const hn=function(t){t&&"string"==typeof t&&t.indexOf("NetworkError")>-1&&(un="error"),ln&&ln(t);};function pn(){dn.fire(new Vt("pluginStateChange",{pluginStatus:un,pluginURL:cn}));}const dn=new Rt,fn=function(){return un},yn=function(){if("deferred"!==un||!cn)throw new Error("rtl-text-plugin cannot be downloaded unless a pluginURL is specified");un="loading",pn(),cn&&St({url:cn}, t=>{t?hn(t):(un="loaded",pn());});},mn={applyArabicShaping:null,processBidirectionalText:null,processStyledBidirectionalText:null,isLoaded:()=>"loaded"===un||null!=mn.applyArabicShaping,isLoading:()=>"loading"===un,setState(t){un=t.pluginStatus,cn=t.pluginURL;},isParsed:()=>null!=mn.applyArabicShaping&&null!=mn.processBidirectionalText&&null!=mn.processStyledBidirectionalText,getPluginURL:()=>cn};class gn{constructor(t, e){this.zoom=t,e?(this.now=e.now,this.fadeDuration=e.fadeDuration,this.zoomHistory=e.zoomHistory,this.transition=e.transition):(this.now=0,this.fadeDuration=0,this.zoomHistory=new Yi,this.transition={});}isSupportedScript(t){return function(t, e){for(const r of t)if(!an(r.charCodeAt(0),e))return !1;return !0}(t,mn.isLoaded())}crossFadingFactor(){return 0===this.fadeDuration?1:Math.min((this.now-this.zoomHistory.lastIntegerZoomTime)/this.fadeDuration,1)}getCrossfadeParameters(){const t=this.zoom,e=t-Math.floor(t),r=this.crossFadingFactor();return t>this.zoomHistory.lastIntegerZoom?{fromScale:2,toScale:1,t:e+(1-e)*r}:{fromScale:.5,toScale:1,t:1-(1-r)*e}}}class xn{constructor(t,e){this.property=t,this.value=e,this.expression=function(t,e){if(Kr(t))return new ni(t,e);if(Qr(t)){const r=ii(t,e);if("error"===r.result)throw new Error(r.value.map(t=>`${t.key}: ${t.message}`).join(", "));return r.value}{let r=t;return "string"==typeof t&&"color"===e.type&&(r=ue.parse(t)),{kind:"constant",evaluate:()=>r}}}(void 0===e?t.specification.default:e,t.specification);}isDataDriven(){return "source"===this.expression.kind||"composite"===this.expression.kind}possiblyEvaluate(t,e,r){return this.property.possiblyEvaluate(this,t,e,r)}}class vn{constructor(t){this.property=t,this.value=new xn(t,void 0);}transitioned(t,e){return new wn(this.property,this.value,e,x({},t.transition,this.transition),t.now)}untransitioned(){return new wn(this.property,this.value,null,{},0)}}class bn{constructor(t){this._properties=t,this._values=Object.create(t.defaultTransitionablePropertyValues);}getValue(t){return T(this._values[t].value.value)}setValue(t,e){this._values.hasOwnProperty(t)||(this._values[t]=new vn(this._values[t].property)),this._values[t].value=new xn(this._values[t].property,null===e?void 0:T(e));}getTransition(t){return T(this._values[t].transition)}setTransition(t,e){this._values.hasOwnProperty(t)||(this._values[t]=new vn(this._values[t].property)),this._values[t].transition=T(e)||void 0;}serialize(){const t={};for(const e of Object.keys(this._values)){const r=this.getValue(e);void 0!==r&&(t[e]=r);const i=this.getTransition(e);void 0!==i&&(t[`${e}-transition`]=i);}return t}transitioned(t,e){const r=new _n(this._properties);for(const i of Object.keys(this._values))r._values[i]=this._values[i].transitioned(t,e._values[i]);return r}untransitioned(){const t=new _n(this._properties);for(const e of Object.keys(this._values))t._values[e]=this._values[e].untransitioned();return t}}class wn{constructor(t,e,r,i,n){this.property=t,this.value=e,this.begin=n+i.delay||0,this.end=this.begin+i.duration||0,t.specification.transition&&(i.delay||i.duration)&&(this.prior=r);}possiblyEvaluate(t,e,r){const i=t.now||0,n=this.value.possiblyEvaluate(t,e,r),s=this.prior;if(s){if(i>this.end)return this.prior=null,n;if(this.value.isDataDriven())return this.prior=null,n;if(ii.zoomHistory.lastIntegerZoom?{from:t,to:e}:{from:r,to:e}}interpolate(t){return t}}class En{constructor(t){this.specification=t;}possiblyEvaluate(t,e,r,i){if(void 0!==t.value){if("constant"===t.expression.kind){const n=t.expression.evaluate(e,null,{},r,i);return this._calculate(n,n,n,e)}return this._calculate(t.expression.evaluate(new gn(Math.floor(e.zoom-1),e)),t.expression.evaluate(new gn(Math.floor(e.zoom),e)),t.expression.evaluate(new gn(Math.floor(e.zoom+1),e)),e)}}_calculate(t,e,r,i){return i.zoom>i.zoomHistory.lastIntegerZoom?{from:t,to:e}:{from:r,to:e}}interpolate(t){return t}}class Cn{constructor(t){this.specification=t;}possiblyEvaluate(t,e,r,i){return !!t.expression.evaluate(e,null,{},r,i)}interpolate(){return !1}}class Mn{constructor(t){this.properties=t,this.defaultPropertyValues={},this.defaultTransitionablePropertyValues={},this.defaultTransitioningPropertyValues={},this.defaultPossiblyEvaluatedValues={},this.overridableProperties=[];for(const e in t){const r=t[e];r.specification.overridable&&this.overridableProperties.push(e);const i=this.defaultPropertyValues[e]=new xn(r,void 0),n=this.defaultTransitionablePropertyValues[e]=new vn(r);this.defaultTransitioningPropertyValues[e]=n.untransitioned(),this.defaultPossiblyEvaluatedValues[e]=i.possiblyEvaluate({});}}}function Bn(t,e){return 256*(t=y(Math.floor(t),0,255))+y(Math.floor(e),0,255)}Zi("DataDrivenProperty",Tn),Zi("DataConstantProperty",In),Zi("CrossFadedDataDrivenProperty",zn),Zi("CrossFadedProperty",En),Zi("ColorRampProperty",Cn);const Dn={Int8:Int8Array,Uint8:Uint8Array,Int16:Int16Array,Uint16:Uint16Array,Int32:Int32Array,Uint32:Uint32Array,Float32:Float32Array};class Pn{constructor(t,e){this._structArray=t,this._pos1=e*this.size,this._pos2=this._pos1/2,this._pos4=this._pos1/4,this._pos8=this._pos1/8;}}class Vn{constructor(){this.isTransferred=!1,this.capacity=-1,this.resize(0);}static serialize(t,e){return t._trim(),e&&(t.isTransferred=!0,e.push(t.arrayBuffer)),{length:t.length,arrayBuffer:t.arrayBuffer}}static deserialize(t){const e=Object.create(this.prototype);return e.arrayBuffer=t.arrayBuffer,e.length=t.length,e.capacity=t.arrayBuffer.byteLength/e.bytesPerElement,e._refreshViews(),e}_trim(){this.length!==this.capacity&&(this.capacity=this.length,this.arrayBuffer=this.arrayBuffer.slice(0,this.length*this.bytesPerElement),this._refreshViews());}clear(){this.length=0;}resize(t){this.reserve(t),this.length=t;}reserve(t){if(t>this.capacity){this.capacity=Math.max(t,Math.floor(5*this.capacity),128),this.arrayBuffer=new ArrayBuffer(this.capacity*this.bytesPerElement);const e=this.uint8;this._refreshViews(),e&&this.uint8.set(e);}}_refreshViews(){throw new Error("_refreshViews() must be implemented by each concrete StructArray layout")}}function Fn(t,e=1){let r=0,i=0;return {members:t.map(t=>{const n=Dn[t.type].BYTES_PER_ELEMENT,s=r=Rn(r,Math.max(e,n)),a=t.components||1;return i=Math.max(i,n),r+=n*a,{name:t.name,type:t.type,components:a,offset:s}}),size:Rn(r,Math.max(i,e)),alignment:e}}function Rn(t,e){return Math.ceil(t/e)*e}class Ln extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer);}emplaceBack(t,e){const r=this.length;return this.resize(r+1),this.emplace(r,t,e)}emplace(t,e,r){const i=2*t;return this.int16[i+0]=e,this.int16[i+1]=r,t}}Ln.prototype.bytesPerElement=4,Zi("StructArrayLayout2i4",Ln);class Un extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer);}emplaceBack(t,e,r,i){const n=this.length;return this.resize(n+1),this.emplace(n,t,e,r,i)}emplace(t,e,r,i,n){const s=4*t;return this.int16[s+0]=e,this.int16[s+1]=r,this.int16[s+2]=i,this.int16[s+3]=n,t}}Un.prototype.bytesPerElement=8,Zi("StructArrayLayout4i8",Un);class On extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);}emplaceBack(t,e,r,i,n,s,a){const o=this.length;return this.resize(o+1),this.emplace(o,t,e,r,i,n,s,a)}emplace(t,e,r,i,n,s,a,o){const l=6*t,u=12*t,c=3*t;return this.int16[l+0]=e,this.int16[l+1]=r,this.uint8[u+4]=i,this.uint8[u+5]=n,this.uint8[u+6]=s,this.uint8[u+7]=a,this.float32[c+2]=o,t}}On.prototype.bytesPerElement=12,Zi("StructArrayLayout2i4ub1f12",On);class $n extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);}emplaceBack(t,e){const r=this.length;return this.resize(r+1),this.emplace(r,t,e)}emplace(t,e,r){const i=2*t;return this.float32[i+0]=e,this.float32[i+1]=r,t}}$n.prototype.bytesPerElement=8,Zi("StructArrayLayout2f8",$n);class qn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);}emplaceBack(t,e,r,i,n,s,a,o,l,u){const c=this.length;return this.resize(c+1),this.emplace(c,t,e,r,i,n,s,a,o,l,u)}emplace(t,e,r,i,n,s,a,o,l,u,c){const h=10*t;return this.uint16[h+0]=e,this.uint16[h+1]=r,this.uint16[h+2]=i,this.uint16[h+3]=n,this.uint16[h+4]=s,this.uint16[h+5]=a,this.uint16[h+6]=o,this.uint16[h+7]=l,this.uint16[h+8]=u,this.uint16[h+9]=c,t}}qn.prototype.bytesPerElement=20,Zi("StructArrayLayout10ui20",qn);class Nn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);}emplaceBack(t,e,r,i,n,s,a,o,l,u,c,h){const p=this.length;return this.resize(p+1),this.emplace(p,t,e,r,i,n,s,a,o,l,u,c,h)}emplace(t,e,r,i,n,s,a,o,l,u,c,h,p){const d=12*t;return this.int16[d+0]=e,this.int16[d+1]=r,this.int16[d+2]=i,this.int16[d+3]=n,this.uint16[d+4]=s,this.uint16[d+5]=a,this.uint16[d+6]=o,this.uint16[d+7]=l,this.int16[d+8]=u,this.int16[d+9]=c,this.int16[d+10]=h,this.int16[d+11]=p,t}}Nn.prototype.bytesPerElement=24,Zi("StructArrayLayout4i4ui4i24",Nn);class jn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);}emplaceBack(t,e,r){const i=this.length;return this.resize(i+1),this.emplace(i,t,e,r)}emplace(t,e,r,i){const n=3*t;return this.float32[n+0]=e,this.float32[n+1]=r,this.float32[n+2]=i,t}}jn.prototype.bytesPerElement=12,Zi("StructArrayLayout3f12",jn);class Kn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer);}emplaceBack(t){const e=this.length;return this.resize(e+1),this.emplace(e,t)}emplace(t,e){return this.uint32[1*t+0]=e,t}}Kn.prototype.bytesPerElement=4,Zi("StructArrayLayout1ul4",Kn);class Zn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);}emplaceBack(t,e,r,i,n,s,a,o,l,u){const c=this.length;return this.resize(c+1),this.emplace(c,t,e,r,i,n,s,a,o,l,u)}emplace(t,e,r,i,n,s,a,o,l,u,c){const h=16*t,p=8*t;return this.int16[h+0]=e,this.int16[h+1]=r,this.float32[p+1]=i,this.float32[p+2]=n,this.float32[p+3]=s,this.float32[p+4]=a,this.int16[h+10]=o,this.uint32[p+6]=l,this.uint16[h+14]=u,this.uint16[h+15]=c,t}}Zn.prototype.bytesPerElement=32,Zi("StructArrayLayout2i4f1i1ul2ui32",Zn);class Xn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer);}emplaceBack(t,e,r,i,n,s){const a=this.length;return this.resize(a+1),this.emplace(a,t,e,r,i,n,s)}emplace(t,e,r,i,n,s,a){const o=6*t;return this.int16[o+0]=e,this.int16[o+1]=r,this.int16[o+2]=i,this.int16[o+3]=n,this.int16[o+4]=s,this.int16[o+5]=a,t}}Xn.prototype.bytesPerElement=12,Zi("StructArrayLayout2i2i2i12",Xn);class Gn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer);}emplaceBack(t,e,r,i,n){const s=this.length;return this.resize(s+1),this.emplace(s,t,e,r,i,n)}emplace(t,e,r,i,n,s){const a=4*t,o=8*t;return this.float32[a+0]=e,this.float32[a+1]=r,this.float32[a+2]=i,this.int16[o+6]=n,this.int16[o+7]=s,t}}Gn.prototype.bytesPerElement=16,Zi("StructArrayLayout2f1f2i16",Gn);class Hn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);}emplaceBack(t,e,r,i){const n=this.length;return this.resize(n+1),this.emplace(n,t,e,r,i)}emplace(t,e,r,i,n){const s=12*t,a=3*t;return this.uint8[s+0]=e,this.uint8[s+1]=r,this.float32[a+1]=i,this.float32[a+2]=n,t}}Hn.prototype.bytesPerElement=12,Zi("StructArrayLayout2ub2f12",Hn);class Jn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);}emplaceBack(t,e,r){const i=this.length;return this.resize(i+1),this.emplace(i,t,e,r)}emplace(t,e,r,i){const n=3*t;return this.uint16[n+0]=e,this.uint16[n+1]=r,this.uint16[n+2]=i,t}}Jn.prototype.bytesPerElement=6,Zi("StructArrayLayout3ui6",Jn);class Yn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);}emplaceBack(t,e,r,i,n,s,a,o,l,u,c,h,p,d,f,y,m){const g=this.length;return this.resize(g+1),this.emplace(g,t,e,r,i,n,s,a,o,l,u,c,h,p,d,f,y,m)}emplace(t,e,r,i,n,s,a,o,l,u,c,h,p,d,f,y,m,g){const x=24*t,v=12*t,b=48*t;return this.int16[x+0]=e,this.int16[x+1]=r,this.uint16[x+2]=i,this.uint16[x+3]=n,this.uint32[v+2]=s,this.uint32[v+3]=a,this.uint32[v+4]=o,this.uint16[x+10]=l,this.uint16[x+11]=u,this.uint16[x+12]=c,this.float32[v+7]=h,this.float32[v+8]=p,this.uint8[b+36]=d,this.uint8[b+37]=f,this.uint8[b+38]=y,this.uint32[v+10]=m,this.int16[x+22]=g,t}}Yn.prototype.bytesPerElement=48,Zi("StructArrayLayout2i2ui3ul3ui2f3ub1ul1i48",Yn);class Wn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);}emplaceBack(t,e,r,i,n,s,a,o,l,u,c,h,p,d,f,y,m,g,x,v,b,w,_,A,k,S,I,T){const z=this.length;return this.resize(z+1),this.emplace(z,t,e,r,i,n,s,a,o,l,u,c,h,p,d,f,y,m,g,x,v,b,w,_,A,k,S,I,T)}emplace(t,e,r,i,n,s,a,o,l,u,c,h,p,d,f,y,m,g,x,v,b,w,_,A,k,S,I,T,z){const E=34*t,C=17*t;return this.int16[E+0]=e,this.int16[E+1]=r,this.int16[E+2]=i,this.int16[E+3]=n,this.int16[E+4]=s,this.int16[E+5]=a,this.int16[E+6]=o,this.int16[E+7]=l,this.uint16[E+8]=u,this.uint16[E+9]=c,this.uint16[E+10]=h,this.uint16[E+11]=p,this.uint16[E+12]=d,this.uint16[E+13]=f,this.uint16[E+14]=y,this.uint16[E+15]=m,this.uint16[E+16]=g,this.uint16[E+17]=x,this.uint16[E+18]=v,this.uint16[E+19]=b,this.uint16[E+20]=w,this.uint16[E+21]=_,this.uint16[E+22]=A,this.uint32[C+12]=k,this.float32[C+13]=S,this.float32[C+14]=I,this.float32[C+15]=T,this.float32[C+16]=z,t}}Wn.prototype.bytesPerElement=68,Zi("StructArrayLayout8i15ui1ul4f68",Wn);class Qn extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);}emplaceBack(t){const e=this.length;return this.resize(e+1),this.emplace(e,t)}emplace(t,e){return this.float32[1*t+0]=e,t}}Qn.prototype.bytesPerElement=4,Zi("StructArrayLayout1f4",Qn);class ts extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer);}emplaceBack(t,e,r){const i=this.length;return this.resize(i+1),this.emplace(i,t,e,r)}emplace(t,e,r,i){const n=3*t;return this.int16[n+0]=e,this.int16[n+1]=r,this.int16[n+2]=i,t}}ts.prototype.bytesPerElement=6,Zi("StructArrayLayout3i6",ts);class es extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);}emplaceBack(t,e,r){const i=this.length;return this.resize(i+1),this.emplace(i,t,e,r)}emplace(t,e,r,i){const n=4*t;return this.uint32[2*t+0]=e,this.uint16[n+2]=r,this.uint16[n+3]=i,t}}es.prototype.bytesPerElement=8,Zi("StructArrayLayout1ul2ui8",es);class rs extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);}emplaceBack(t,e){const r=this.length;return this.resize(r+1),this.emplace(r,t,e)}emplace(t,e,r){const i=2*t;return this.uint16[i+0]=e,this.uint16[i+1]=r,t}}rs.prototype.bytesPerElement=4,Zi("StructArrayLayout2ui4",rs);class is extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);}emplaceBack(t){const e=this.length;return this.resize(e+1),this.emplace(e,t)}emplace(t,e){return this.uint16[1*t+0]=e,t}}is.prototype.bytesPerElement=2,Zi("StructArrayLayout1ui2",is);class ns extends Vn{_refreshViews(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);}emplaceBack(t,e,r,i){const n=this.length;return this.resize(n+1),this.emplace(n,t,e,r,i)}emplace(t,e,r,i,n){const s=4*t;return this.float32[s+0]=e,this.float32[s+1]=r,this.float32[s+2]=i,this.float32[s+3]=n,t}}ns.prototype.bytesPerElement=16,Zi("StructArrayLayout4f16",ns);class ss extends Pn{get anchorPointX(){return this._structArray.int16[this._pos2+0]}get anchorPointY(){return this._structArray.int16[this._pos2+1]}get x1(){return this._structArray.float32[this._pos4+1]}get y1(){return this._structArray.float32[this._pos4+2]}get x2(){return this._structArray.float32[this._pos4+3]}get y2(){return this._structArray.float32[this._pos4+4]}get padding(){return this._structArray.int16[this._pos2+10]}get featureIndex(){return this._structArray.uint32[this._pos4+6]}get sourceLayerIndex(){return this._structArray.uint16[this._pos2+14]}get bucketIndex(){return this._structArray.uint16[this._pos2+15]}get anchorPoint(){return new n(this.anchorPointX,this.anchorPointY)}}ss.prototype.size=32;class as extends Zn{get(t){return new ss(this,t)}}Zi("CollisionBoxArray",as);class os extends Pn{get anchorX(){return this._structArray.int16[this._pos2+0]}get anchorY(){return this._structArray.int16[this._pos2+1]}get glyphStartIndex(){return this._structArray.uint16[this._pos2+2]}get numGlyphs(){return this._structArray.uint16[this._pos2+3]}get vertexStartIndex(){return this._structArray.uint32[this._pos4+2]}get lineStartIndex(){return this._structArray.uint32[this._pos4+3]}get lineLength(){return this._structArray.uint32[this._pos4+4]}get segment(){return this._structArray.uint16[this._pos2+10]}get lowerSize(){return this._structArray.uint16[this._pos2+11]}get upperSize(){return this._structArray.uint16[this._pos2+12]}get lineOffsetX(){return this._structArray.float32[this._pos4+7]}get lineOffsetY(){return this._structArray.float32[this._pos4+8]}get writingMode(){return this._structArray.uint8[this._pos1+36]}get placedOrientation(){return this._structArray.uint8[this._pos1+37]}set placedOrientation(t){this._structArray.uint8[this._pos1+37]=t;}get hidden(){return this._structArray.uint8[this._pos1+38]}set hidden(t){this._structArray.uint8[this._pos1+38]=t;}get crossTileID(){return this._structArray.uint32[this._pos4+10]}set crossTileID(t){this._structArray.uint32[this._pos4+10]=t;}get associatedIconIndex(){return this._structArray.int16[this._pos2+22]}}os.prototype.size=48;class ls extends Yn{get(t){return new os(this,t)}}Zi("PlacedSymbolArray",ls);class us extends Pn{get anchorX(){return this._structArray.int16[this._pos2+0]}get anchorY(){return this._structArray.int16[this._pos2+1]}get rightJustifiedTextSymbolIndex(){return this._structArray.int16[this._pos2+2]}get centerJustifiedTextSymbolIndex(){return this._structArray.int16[this._pos2+3]}get leftJustifiedTextSymbolIndex(){return this._structArray.int16[this._pos2+4]}get verticalPlacedTextSymbolIndex(){return this._structArray.int16[this._pos2+5]}get placedIconSymbolIndex(){return this._structArray.int16[this._pos2+6]}get verticalPlacedIconSymbolIndex(){return this._structArray.int16[this._pos2+7]}get key(){return this._structArray.uint16[this._pos2+8]}get textBoxStartIndex(){return this._structArray.uint16[this._pos2+9]}get textBoxEndIndex(){return this._structArray.uint16[this._pos2+10]}get verticalTextBoxStartIndex(){return this._structArray.uint16[this._pos2+11]}get verticalTextBoxEndIndex(){return this._structArray.uint16[this._pos2+12]}get iconBoxStartIndex(){return this._structArray.uint16[this._pos2+13]}get iconBoxEndIndex(){return this._structArray.uint16[this._pos2+14]}get verticalIconBoxStartIndex(){return this._structArray.uint16[this._pos2+15]}get verticalIconBoxEndIndex(){return this._structArray.uint16[this._pos2+16]}get featureIndex(){return this._structArray.uint16[this._pos2+17]}get numHorizontalGlyphVertices(){return this._structArray.uint16[this._pos2+18]}get numVerticalGlyphVertices(){return this._structArray.uint16[this._pos2+19]}get numIconVertices(){return this._structArray.uint16[this._pos2+20]}get numVerticalIconVertices(){return this._structArray.uint16[this._pos2+21]}get useRuntimeCollisionCircles(){return this._structArray.uint16[this._pos2+22]}get crossTileID(){return this._structArray.uint32[this._pos4+12]}set crossTileID(t){this._structArray.uint32[this._pos4+12]=t;}get textBoxScale(){return this._structArray.float32[this._pos4+13]}get textOffset0(){return this._structArray.float32[this._pos4+14]}get textOffset1(){return this._structArray.float32[this._pos4+15]}get collisionCircleDiameter(){return this._structArray.float32[this._pos4+16]}}us.prototype.size=68;class cs extends Wn{get(t){return new us(this,t)}}Zi("SymbolInstanceArray",cs);class hs extends Qn{getoffsetX(t){return this.float32[1*t+0]}}Zi("GlyphOffsetArray",hs);class ps extends ts{getx(t){return this.int16[3*t+0]}gety(t){return this.int16[3*t+1]}gettileUnitDistanceFromAnchor(t){return this.int16[3*t+2]}}Zi("SymbolLineVertexArray",ps);class ds extends Pn{get featureIndex(){return this._structArray.uint32[this._pos4+0]}get sourceLayerIndex(){return this._structArray.uint16[this._pos2+2]}get bucketIndex(){return this._structArray.uint16[this._pos2+3]}}ds.prototype.size=8;class fs extends es{get(t){return new ds(this,t)}}Zi("FeatureIndexArray",fs);const ys=Fn([{name:"a_pattern_from",components:4,type:"Uint16"},{name:"a_pattern_to",components:4,type:"Uint16"},{name:"a_pixel_ratio_from",components:1,type:"Uint16"},{name:"a_pixel_ratio_to",components:1,type:"Uint16"}]);var ms=e((function(t){t.exports=function(t,e){var r,i,n,s,a,o,l,u;for(i=t.length-(r=3&t.length),n=e,a=3432918353,o=461845907,u=0;u>>16)*a&65535)<<16)&4294967295)<<15|l>>>17))*o+(((l>>>16)*o&65535)<<16)&4294967295)<<13|n>>>19))+((5*(n>>>16)&65535)<<16)&4294967295))+((58964+(s>>>16)&65535)<<16);switch(l=0,r){case 3:l^=(255&t.charCodeAt(u+2))<<16;case 2:l^=(255&t.charCodeAt(u+1))<<8;case 1:n^=l=(65535&(l=(l=(65535&(l^=255&t.charCodeAt(u)))*a+(((l>>>16)*a&65535)<<16)&4294967295)<<15|l>>>17))*o+(((l>>>16)*o&65535)<<16)&4294967295;}return n^=t.length,n=2246822507*(65535&(n^=n>>>16))+((2246822507*(n>>>16)&65535)<<16)&4294967295,n=3266489909*(65535&(n^=n>>>13))+((3266489909*(n>>>16)&65535)<<16)&4294967295,(n^=n>>>16)>>>0};})),gs=e((function(t){t.exports=function(t,e){for(var r,i=t.length,n=e^i,s=0;i>=4;)r=1540483477*(65535&(r=255&t.charCodeAt(s)|(255&t.charCodeAt(++s))<<8|(255&t.charCodeAt(++s))<<16|(255&t.charCodeAt(++s))<<24))+((1540483477*(r>>>16)&65535)<<16),n=1540483477*(65535&n)+((1540483477*(n>>>16)&65535)<<16)^(r=1540483477*(65535&(r^=r>>>24))+((1540483477*(r>>>16)&65535)<<16)),i-=4,++s;switch(i){case 3:n^=(255&t.charCodeAt(s+2))<<16;case 2:n^=(255&t.charCodeAt(s+1))<<8;case 1:n=1540483477*(65535&(n^=255&t.charCodeAt(s)))+((1540483477*(n>>>16)&65535)<<16);}return n=1540483477*(65535&(n^=n>>>13))+((1540483477*(n>>>16)&65535)<<16),(n^=n>>>15)>>>0};})),xs=ms,vs=gs;xs.murmur3=ms,xs.murmur2=vs;class bs{constructor(){this.ids=[],this.positions=[],this.indexed=!1;}add(t,e,r,i){this.ids.push(ws(t)),this.positions.push(e,r,i);}getPositions(t){const e=ws(t);let r=0,i=this.ids.length-1;for(;r>1;this.ids[t]>=e?i=t:r=t+1;}const n=[];for(;this.ids[r]===e;)n.push({index:this.positions[3*r],start:this.positions[3*r+1],end:this.positions[3*r+2]}),r++;return n}static serialize(t,e){const r=new Float64Array(t.ids),i=new Uint32Array(t.positions);return function t(e,r,i,n){for(;i>1];let a=i-1,o=n+1;for(;;){do{a++;}while(e[a]s);if(a>=o)break;_s(e,a,o),_s(r,3*a,3*o),_s(r,3*a+1,3*o+1),_s(r,3*a+2,3*o+2);}o-i`u_${t}`),this.type=r;}setUniform(t,e,r){t.set(r.constantOr(this.value));}getBinding(t,e,r){return "color"===this.type?new Is(t,e):new ks(t,e)}}class Ms{constructor(t,e){this.uniformNames=e.map(t=>`u_${t}`),this.patternFrom=null,this.patternTo=null,this.pixelRatioFrom=1,this.pixelRatioTo=1;}setConstantPatternPositions(t,e){this.pixelRatioFrom=e.pixelRatio,this.pixelRatioTo=t.pixelRatio,this.patternFrom=e.tlbr,this.patternTo=t.tlbr;}setUniform(t,e,r,i){const n="u_pattern_to"===i?this.patternTo:"u_pattern_from"===i?this.patternFrom:"u_pixel_ratio_to"===i?this.pixelRatioTo:"u_pixel_ratio_from"===i?this.pixelRatioFrom:null;n&&t.set(n);}getBinding(t,e,r){return "u_pattern"===r.substr(0,9)?new Ss(t,e):new ks(t,e)}}class Bs{constructor(t,e,r,i){this.expression=t,this.type=r,this.maxValue=0,this.paintVertexAttributes=e.map(t=>({name:`a_${t}`,type:"Float32",components:"color"===r?2:1,offset:0})),this.paintVertexArray=new i;}populatePaintArray(t,e,r,i,n){const s=this.paintVertexArray.length,a=this.expression.evaluate(new gn(0),e,{},i,[],n);this.paintVertexArray.resize(t),this._setPaintValue(s,t,a);}updatePaintArray(t,e,r,i){const n=this.expression.evaluate({zoom:0},r,i);this._setPaintValue(t,e,n);}_setPaintValue(t,e,r){if("color"===this.type){const i=Es(r);for(let r=t;r`u_${t}_t`),this.type=r,this.useIntegerZoom=i,this.zoom=n,this.maxValue=0,this.paintVertexAttributes=e.map(t=>({name:`a_${t}`,type:"Float32",components:"color"===r?4:2,offset:0})),this.paintVertexArray=new s;}populatePaintArray(t,e,r,i,n){const s=this.expression.evaluate(new gn(this.zoom),e,{},i,[],n),a=this.expression.evaluate(new gn(this.zoom+1),e,{},i,[],n),o=this.paintVertexArray.length;this.paintVertexArray.resize(t),this._setPaintValue(o,t,s,a);}updatePaintArray(t,e,r,i){const n=this.expression.evaluate({zoom:this.zoom},r,i),s=this.expression.evaluate({zoom:this.zoom+1},r,i);this._setPaintValue(t,e,n,s);}_setPaintValue(t,e,r,i){if("color"===this.type){const n=Es(r),s=Es(i);for(let r=t;r!0)){this.binders={},this._buffers=[];const i=[];for(const n in t.paint._values){if(!r(n))continue;const s=t.paint.get(n);if(!(s instanceof kn&&$r(s.property.specification)))continue;const a=Rs(n,t.type),o=s.value,l=s.property.specification.type,u=s.property.useIntegerZoom,c=s.property.specification["property-type"],h="cross-faded"===c||"cross-faded-data-driven"===c;if("constant"===o.kind)this.binders[n]=h?new Ms(o.value,a):new Cs(o.value,a,l),i.push(`/u_${n}`);else if("source"===o.kind||h){const r=Ls(n,l,"source");this.binders[n]=h?new Ps(o,l,u,e,r,t.id):new Bs(o,a,l,r),i.push(`/a_${n}`);}else {const t=Ls(n,l,"composite");this.binders[n]=new Ds(o,a,l,u,e,t),i.push(`/z_${n}`);}}this.cacheKey=i.sort().join("");}getMaxValue(t){const e=this.binders[t];return e instanceof Bs||e instanceof Ds?e.maxValue:0}populatePaintArrays(t,e,r,i,n){for(const s in this.binders){const a=this.binders[s];(a instanceof Bs||a instanceof Ds||a instanceof Ps)&&a.populatePaintArray(t,e,r,i,n);}}setConstantPatternPositions(t,e){for(const r in this.binders){const i=this.binders[r];i instanceof Ms&&i.setConstantPatternPositions(t,e);}}updatePaintArrays(t,e,r,i,n){let s=!1;for(const a in t){const o=e.getPositions(a);for(const e of o){const o=r.feature(e.index);for(const r in this.binders){const l=this.binders[r];if((l instanceof Bs||l instanceof Ds||l instanceof Ps)&&!0===l.expression.isStateDependent){const u=i.paint.get(r);l.expression=u.value,l.updatePaintArray(e.start,e.end,o,t[a],n),s=!0;}}}}return s}defines(){const t=[];for(const e in this.binders){const r=this.binders[e];(r instanceof Cs||r instanceof Ms)&&t.push(...r.uniformNames.map(t=>`#define HAS_UNIFORM_${t}`));}return t}getBinderAttributes(){const t=[];for(const e in this.binders){const r=this.binders[e];if(r instanceof Bs||r instanceof Ds)for(let e=0;e!0)){this.programConfigurations={};for(const i of t)this.programConfigurations[i.id]=new Vs(i,e,r);this.needsUpload=!1,this._featureMap=new bs,this._bufferOffset=0;}populatePaintArrays(t,e,r,i,n,s){for(const r in this.programConfigurations)this.programConfigurations[r].populatePaintArrays(t,e,i,n,s);void 0!==e.id&&this._featureMap.add(e.id,r,this._bufferOffset,t),this._bufferOffset=t,this.needsUpload=!0;}updatePaintArrays(t,e,r,i){for(const n of r)this.needsUpload=this.programConfigurations[n.id].updatePaintArrays(t,this._featureMap,e,n,i)||this.needsUpload;}get(t){return this.programConfigurations[t]}upload(t){if(this.needsUpload){for(const e in this.programConfigurations)this.programConfigurations[e].upload(t);this.needsUpload=!1;}}destroy(){for(const t in this.programConfigurations)this.programConfigurations[t].destroy();}}function Rs(t,e){return {"text-opacity":["opacity"],"icon-opacity":["opacity"],"text-color":["fill_color"],"icon-color":["fill_color"],"text-halo-color":["halo_color"],"icon-halo-color":["halo_color"],"text-halo-blur":["halo_blur"],"icon-halo-blur":["halo_blur"],"text-halo-width":["halo_width"],"icon-halo-width":["halo_width"],"line-gap-width":["gapwidth"],"line-pattern":["pattern_to","pattern_from","pixel_ratio_to","pixel_ratio_from"],"fill-pattern":["pattern_to","pattern_from","pixel_ratio_to","pixel_ratio_from"],"fill-extrusion-pattern":["pattern_to","pattern_from","pixel_ratio_to","pixel_ratio_from"]}[t]||[t.replace(`${e}-`,"").replace(/-/g,"_")]}function Ls(t,e,r){const i={color:{source:$n,composite:ns},number:{source:Qn,composite:$n}},n=function(t){return {"line-pattern":{source:qn,composite:qn},"fill-pattern":{source:qn,composite:qn},"fill-extrusion-pattern":{source:qn,composite:qn}}[t]}(t);return 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To(t,e,r){this.i=t,this.x=e,this.y=r,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1;}function zo(t,e,r,i){for(var n=0,s=e,a=r-i;si;){if(n-i>600){var a=n-i+1,o=r-i+1,l=Math.log(a),u=.5*Math.exp(2*l/3),c=.5*Math.sqrt(l*u*(a-u)/a)*(o-a/2<0?-1:1);t(e,r,Math.max(i,Math.floor(r-o*u/a+c)),Math.min(n,Math.floor(r+(a-o)*u/a+c)),s);}var h=e[r],p=i,d=n;for(Co(e,i,r),s(e[n],h)>0&&Co(e,i,n);p0;)d--;}0===s(e[i],h)?Co(e,i,d):Co(e,++d,n),d<=r&&(i=d+1),r<=d&&(n=d-1);}}(t,e,r||0,i||t.length-1,n||Mo);}function Co(t,e,r){var i=t[e];t[e]=t[r],t[r]=i;}function Mo(t,e){return te?1:0}function Bo(t,e){const r=t.length;if(r<=1)return [t];const i=[];let n,s;for(let e=0;e1)for(let t=0;t0&&r.holes.push(i+=t[n-1].length);}return r},to.default=eo;class Fo{constructor(t){this.zoom=t.zoom,this.overscaling=t.overscaling,this.layers=t.layers,this.layerIds=this.layers.map(t=>t.id),this.index=t.index,this.hasPattern=!1,this.patternFeatures=[],this.layoutVertexArray=new Ln,this.indexArray=new Jn,this.indexArray2=new rs,this.programConfigurations=new Fs(t.layers,t.zoom),this.segments=new qs,this.segments2=new qs,this.stateDependentLayerIds=this.layers.filter(t=>t.isStateDependent()).map(t=>t.id);}populate(t,e,r){this.hasPattern=Po("fill",this.layers,e);const i=this.layers[0].layout.get("fill-sort-key"),n=[];for(const{feature:s,id:a,index:o,sourceLayerIndex:l}of t){const t=this.layers[0]._featureFilter.needGeometry,u=Zs(s,t);if(!this.layers[0]._featureFilter.filter(new gn(this.zoom),u,r))continue;const c=i?i.evaluate(u,{},r,e.availableImages):void 0,h={id:a,properties:s.properties,type:s.type,sourceLayerIndex:l,index:o,geometry:t?u.geometry:Ks(s),patterns:{},sortKey:c};n.push(h);}i&&n.sort((t,e)=>t.sortKey-e.sortKey);for(const i of n){const{geometry:n,index:s,sourceLayerIndex:a}=i;if(this.hasPattern){const t=Vo("fill",this.layers,i,this.zoom,e);this.patternFeatures.push(t);}else 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i=this.min,n=this.max;t.xn.x&&(n.x=t.x,r=!0),t.yn.y&&(n.y=t.y,r=!0),((0===t.x||8192===t.x)&&t.x===e.x)!=((0===t.y||8192===t.y)&&t.y===e.y)&&this.processBorderOverlap(t,e),r&&this.checkBorderIntersection(t,e);}checkBorderIntersection(t,e){e.x<0!=t.x<0&&this.addBorderIntersection(0,Qe(e.y,t.y,(0-e.x)/(t.x-e.x))),e.x>8192!=t.x>8192&&this.addBorderIntersection(1,Qe(e.y,t.y,(8192-e.x)/(t.x-e.x))),e.y<0!=t.y<0&&this.addBorderIntersection(2,Qe(e.x,t.x,(0-e.y)/(t.y-e.y))),e.y>8192!=t.y>8192&&this.addBorderIntersection(3,Qe(e.x,t.x,(8192-e.y)/(t.y-e.y)));}addBorderIntersection(t,e){this.borders||(this.borders=[[Number.MAX_VALUE,-Number.MAX_VALUE],[Number.MAX_VALUE,-Number.MAX_VALUE],[Number.MAX_VALUE,-Number.MAX_VALUE],[Number.MAX_VALUE,-Number.MAX_VALUE]]);const r=this.borders[t];er[1]&&(r[1]=e);}processBorderOverlap(t,e){if(t.x===e.x){if(t.y===e.y)return;const r=0===t.x?0:1;this.addBorderIntersection(r,e.y),this.addBorderIntersection(r,t.y);}else {const r=0===t.y?2:3;this.addBorderIntersection(r,e.x),this.addBorderIntersection(r,t.x);}}centroid(){const t=this.polyCount.reduce((t,e)=>t+e.edges,0);return 0!==t?this.acc.div(t)._round():new n(0,0)}span(){return new n(this.max.x-this.min.x,this.max.y-this.min.y)}intersectsCount(){return this.borders.reduce((t,e)=>t+ +(e[0]!==Number.MAX_VALUE),0)}}class el{constructor(t){this.zoom=t.zoom,this.overscaling=t.overscaling,this.layers=t.layers,this.layerIds=this.layers.map(t=>t.id),this.index=t.index,this.hasPattern=!1,this.layoutVertexArray=new Un,this.centroidVertexArray=new rs,this.indexArray=new Jn,this.programConfigurations=new Fs(t.layers,t.zoom),this.segments=new qs,this.stateDependentLayerIds=this.layers.filter(t=>t.isStateDependent()).map(t=>t.id),this.enableTerrain=t.enableTerrain;}populate(t,e,r){this.features=[],this.hasPattern=Po("fill-extrusion",this.layers,e),this.featuresOnBorder=[],this.borders=[[],[],[],[]],this.borderDone=[!1,!1,!1,!1],this.tileToMeter=function(t){const e=Math.exp(Math.PI*(1-t.y/(1<t.x<=0)||a.every(t=>t.x>=8192)||a.every(t=>t.y<=0)||a.every(t=>t.y>=8192))continue;for(let t=0;t=1){const r=n[t-1];if(!rl(e,r)){s&&s.append(e,r),i.vertexLength+4>qs.MAX_VERTEX_ARRAY_LENGTH&&(i=this.segments.prepareSegment(4,this.layoutVertexArray,this.indexArray));const t=e.sub(r)._perp(),n=t.x/(Math.abs(t.x)+Math.abs(t.y)),o=t.y>0?1:0,l=r.dist(e);a+l>32768&&(a=0),Qo(this.layoutVertexArray,e.x,e.y,n,o,0,0,a),Qo(this.layoutVertexArray,e.x,e.y,n,o,0,1,a),a+=l,Qo(this.layoutVertexArray,r.x,r.y,n,o,0,0,a),Qo(this.layoutVertexArray,r.x,r.y,n,o,0,1,a);const u=i.vertexLength;this.indexArray.emplaceBack(u,u+2,u+1),this.indexArray.emplaceBack(u+1,u+2,u+3),i.vertexLength+=4,i.primitiveLength+=2;}}}}if(i.vertexLength+e>qs.MAX_VERTEX_ARRAY_LENGTH&&(i=this.segments.prepareSegment(e,this.layoutVertexArray,this.indexArray)),"Polygon"!==Yo[t.type])continue;const n=[],o=[],l=i.vertexLength;for(let t=0;t0){if(s.borders){s.vertexArrayOffset=this.centroidVertexArray.length;const t=s.borders,e=this.featuresOnBorder.push(s)-1;for(let r=0;r<4;r++)t[r][0]!==Number.MAX_VALUE&&this.borders[r].push(e);}this.encodeCentroid(s.borders?void 0:s.centroid(),s);}this.programConfigurations.populatePaintArrays(this.layoutVertexArray.length,t,r,n,i);}sortBorders(){for(let t=0;t<4;t++)this.borders[t].sort((e,r)=>this.featuresOnBorder[e].borders[t][0]-this.featuresOnBorder[r].borders[t][0]);}encodeCentroid(t,e,r=!0){let i,n;if(t)if(0!==t.y){const r=e.span()._mult(this.tileToMeter);i=(Math.max(t.x,1)<<3)+Math.min(7,Math.round(r.x/10)),n=(Math.max(t.y,1)<<3)+Math.min(7,Math.round(r.y/10));}else i=Math.ceil(7.3*t.x),n=0;else i=0,n=+r;let s=r?this.centroidVertexArray.length:e.vertexArrayOffset;for(const t of e.polyCount){r&&this.centroidVertexArray.resize(this.centroidVertexArray.length+4*t.edges+t.top);for(let e=0;e<2*t.edges;e++)this.centroidVertexArray.emplace(s++,0,n),this.centroidVertexArray.emplace(s++,i,n);for(let e=0;e8192)||t.y===e.y&&(t.y<0||t.y>8192)}Zi("FillExtrusionBucket",el,{omit:["layers","features"]}),Zi("PartMetadata",tl);var il={paint:new Mn({"fill-extrusion-opacity":new In(Lt["paint_fill-extrusion"]["fill-extrusion-opacity"]),"fill-extrusion-color":new Tn(Lt["paint_fill-extrusion"]["fill-extrusion-color"]),"fill-extrusion-translate":new In(Lt["paint_fill-extrusion"]["fill-extrusion-translate"]),"fill-extrusion-translate-anchor":new In(Lt["paint_fill-extrusion"]["fill-extrusion-translate-anchor"]),"fill-extrusion-pattern":new zn(Lt["paint_fill-extrusion"]["fill-extrusion-pattern"]),"fill-extrusion-height":new Tn(Lt["paint_fill-extrusion"]["fill-extrusion-height"]),"fill-extrusion-base":new Tn(Lt["paint_fill-extrusion"]["fill-extrusion-base"]),"fill-extrusion-vertical-gradient":new In(Lt["paint_fill-extrusion"]["fill-extrusion-vertical-gradient"])})};function nl(t,e){return t.x*e.x+t.y*e.y}function sl(t,e){if(1===t.length){let r=0;const i=e[r++];let n;for(;!n||i.equals(n);)if(n=e[r++],!n)return 1/0;for(;rt.id),this.index=t.index,this.hasPattern=!1,this.patternFeatures=[],this.lineClipsArray=[],this.gradients={},this.layers.forEach(t=>{this.gradients[t.id]={};}),this.layoutVertexArray=new On,this.layoutVertexArray2=new $n,this.indexArray=new Jn,this.programConfigurations=new Fs(t.layers,t.zoom),this.segments=new qs,this.maxLineLength=0,this.stateDependentLayerIds=this.layers.filter(t=>t.isStateDependent()).map(t=>t.id);}populate(t,e,r){this.hasPattern=Po("line",this.layers,e);const i=this.layers[0].layout.get("line-sort-key"),n=[];for(const{feature:e,id:s,index:a,sourceLayerIndex:o}of t){const t=this.layers[0]._featureFilter.needGeometry,l=Zs(e,t);if(!this.layers[0]._featureFilter.filter(new gn(this.zoom),l,r))continue;const u=i?i.evaluate(l,{},r):void 0,c={id:s,properties:e.properties,type:e.type,sourceLayerIndex:o,index:a,geometry:t?l.geometry:Ks(e),patterns:{},sortKey:u};n.push(c);}i&&n.sort((t,e)=>t.sortKey-e.sortKey);for(const i of n){const{geometry:n,index:s,sourceLayerIndex:a}=i;if(this.hasPattern){const t=Vo("line",this.layers,i,this.zoom,e);this.patternFeatures.push(t);}else this.addFeature(i,n,s,r,{});e.featureIndex.insert(t[s].feature,n,s,a,this.index);}}update(t,e,r){this.stateDependentLayers.length&&this.programConfigurations.updatePaintArrays(t,e,this.stateDependentLayers,r);}addFeatures(t,e,r){for(const t of this.patternFeatures)this.addFeature(t,t.geometry,t.index,e,r);}isEmpty(){return 0===this.layoutVertexArray.length}uploadPending(){return 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e=h.add(d.sub(h)._mult(u/t)._round());this.updateDistance(h,e),this.addCurrentVertex(e,y,0,0,c),h=e;}}}}addCurrentVertex(t,e,r,i,n,s=!1){const a=e.y*i-e.x,o=-e.y-e.x*i;this.addHalfVertex(t,e.x+e.y*r,e.y-e.x*r,s,!1,r,n),this.addHalfVertex(t,a,o,s,!0,-i,n);}addHalfVertex({x:t,y:e},r,i,n,s,a,o){this.layoutVertexArray.emplaceBack((t<<1)+(n?1:0),(e<<1)+(s?1:0),Math.round(63*r)+128,Math.round(63*i)+128,1+(0===a?0:a<0?-1:1),0,this.lineSoFar),this.lineClips&&this.layoutVertexArray2.emplaceBack(this.scaledDistance,this.lineClipsArray.length);const l=o.vertexLength++;this.e1>=0&&this.e2>=0&&(this.indexArray.emplaceBack(this.e1,this.e2,l),o.primitiveLength++),s?this.e2=l:this.e1=l;}updateScaledDistance(){if(this.lineClips){const t=this.totalDistance/(this.lineClips.end-this.lineClips.start);this.scaledDistance=this.distance/this.totalDistance,this.lineSoFar=t*this.lineClips.start+this.distance;}else 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zn(Lt.paint_line["line-pattern"]),"line-gradient":new Cn(Lt.paint_line["line-gradient"])}),layout:dl};const yl=new class extends Tn{possiblyEvaluate(t,e){return e=new gn(Math.floor(e.zoom),{now:e.now,fadeDuration:e.fadeDuration,zoomHistory:e.zoomHistory,transition:e.transition}),super.possiblyEvaluate(t,e)}evaluate(t,e,r,i){return e=x({},e,{zoom:Math.floor(e.zoom)}),super.evaluate(t,e,r,i)}}(fl.paint.properties["line-width"].specification);function ml(t,e){return e>0?e+2*t:t}yl.useIntegerZoom=!0;const gl=Fn([{name:"a_pos_offset",components:4,type:"Int16"},{name:"a_data",components:4,type:"Uint16"},{name:"a_pixeloffset",components:4,type:"Int16"}],4),xl=Fn([{name:"a_projected_pos",components:3,type:"Float32"}],4),vl=(Fn([{name:"a_fade_opacity",components:1,type:"Uint32"}],4),Fn([{name:"a_placed",components:2,type:"Uint8"},{name:"a_shift",components:2,type:"Float32"}])),bl=Fn([{name:"a_size_scale",components:1,type:"Float32"},{name:"a_padding",components:2,type:"Float32"}]),wl=(Fn([{type:"Int16",name:"anchorPointX"},{type:"Int16",name:"anchorPointY"},{type:"Float32",name:"x1"},{type:"Float32",name:"y1"},{type:"Float32",name:"x2"},{type:"Float32",name:"y2"},{type:"Int16",name:"padding"},{type:"Uint32",name:"featureIndex"},{type:"Uint16",name:"sourceLayerIndex"},{type:"Uint16",name:"bucketIndex"}]),Fn([{name:"a_pos",components:2,type:"Int16"},{name:"a_anchor_pos",components:2,type:"Int16"},{name:"a_extrude",components:2,type:"Int16"}],4)),_l=Fn([{name:"a_pos_2f",components:2,type:"Float32"},{name:"a_radius",components:1,type:"Float32"},{name:"a_flags",components:2,type:"Int16"}],4);function Al(t,e){const{expression:r}=e;if("constant"===r.kind)return {kind:"constant",layoutSize:r.evaluate(new gn(t+1))};if("source"===r.kind)return {kind:"source"};{const{zoomStops:e,interpolationType:i}=r;let n=0;for(;n{t.text=function(t,e,r){const i=e.layout.get("text-transform").evaluate(r,{});return "uppercase"===i?t=t.toLocaleUpperCase():"lowercase"===i&&(t=t.toLocaleLowerCase()),mn.applyArabicShaping&&(t=mn.applyArabicShaping(t)),t}(t.text,e,r);}),t}const 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0,{x:i,y:n});}}Zi("ImagePosition",Ql),Zi("ImageAtlas",tu);const eu={horizontal:1,vertical:2,horizontalOnly:3};class ru{constructor(){this.scale=1,this.fontStack="",this.imageName=null;}static forText(t,e){const r=new ru;return r.scale=t||1,r.fontStack=e,r}static forImage(t){const e=new ru;return e.imageName=t,e}}class iu{constructor(){this.text="",this.sectionIndex=[],this.sections=[],this.imageSectionID=null;}static fromFeature(t,e){const r=new iu;for(let i=0;i=0&&r>=t&&su[this.text.charCodeAt(r)];r--)e--;this.text=this.text.substring(t,e),this.sectionIndex=this.sectionIndex.slice(t,e);}substring(t,e){const r=new iu;return r.text=this.text.substring(t,e),r.sectionIndex=this.sectionIndex.slice(t,e),r.sections=this.sections,r}toString(){return this.text}getMaxScale(){return this.sectionIndex.reduce((t,e)=>Math.max(t,this.sections[e].scale),0)}addTextSection(t,e){this.text+=t.text,this.sections.push(ru.forText(t.scale,t.fontStack||e));const r=this.sections.length-1;for(let 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_=s*n+w;v.lineOffset=Math.max(w,o),d+=_,y=Math.max(_,y),++g;}var x;const v=d- -17,{horizontalAlign:b,verticalAlign:w}=pu(a);(function(t,e,r,i,n,s,a,o,l){const u=(e-r)*n;let c=0;c=s!==a?-o*i- -17:(-i*l+.5)*a;for(const e of t)for(const t of e.positionedGlyphs)t.x+=u,t.y+=c;})(t.positionedLines,m,b,w,f,y,s,v,n.length),t.top+=-w*v,t.bottom=t.top+v,t.left+=-b*f,t.right=t.left+f;}(w,e,r,i,g,a,o,l,h,u,p,y),!function(t){for(const e of t)if(0!==e.positionedGlyphs.length)return !1;return !0}(b)&&w}const su={9:!0,10:!0,11:!0,12:!0,13:!0,32:!0},au={10:!0,32:!0,38:!0,40:!0,41:!0,43:!0,45:!0,47:!0,173:!0,183:!0,8203:!0,8208:!0,8211:!0,8231:!0};function ou(t,e,r,i,n,s){if(e.imageName){const t=i[e.imageName];return t?t.displaySize[0]*e.scale*24/s+n:0}{const i=r[e.fontStack],s=i&&i[t];return s?s.metrics.advance*e.scale+n:0}}function lu(t,e,r,i){const n=Math.pow(t-e,2);return i?t=0;let c=0;for(let r=0;r-r/2;){if(a--,a<0)return !1;o-=t[a].dist(s),s=t[a];}o+=t[a].dist(t[a+1]),a++;const l=[];let u=0;for(;oi;)u-=l.shift().angleDelta;if(u>n)return !1;a++,o+=e.dist(r);}return !0}function xu(t){let e=0;for(let r=0;ru){const c=(u-l)/s,h=Qe(i.x,n.x,c),p=Qe(i.y,n.y,c),d=new mu(h,p,n.angleTo(i),r);return d._round(),!a||gu(t,d,o,a,e)?d:void 0}l+=s;}}function _u(t,e,r,i,n,s,a,o,l){const u=vu(i,s,a),c=bu(i,n),h=c*a,p=0===t[0].x||t[0].x===l||0===t[0].y||t[0].y===l;return e-h=0&&g=0&&x=0&&d+c<=h){const r=new mu(g,x,y,t);r._round(),n&&!gu(e,r,a,n,s)||f.push(r);}}p+=l;}return l||f.length||o||(f=t(e,p/2,i,n,s,a,o,!0,u)),f}(t,p?e/2*o%e:(c/2+2*s)*a*o%e,e,u,r,h,p,!1,l)}function Au(t,e,r,i,s){const a=[];for(let o=0;o=i&&c.x>=i||(o.x>=i?o=new n(i,o.y+(i-o.x)/(c.x-o.x)*(c.y-o.y))._round():c.x>=i&&(c=new n(i,o.y+(i-o.x)/(c.x-o.x)*(c.y-o.y))._round()),o.y>=s&&c.y>=s||(o.y>=s?o=new n(o.x+(s-o.y)/(c.y-o.y)*(c.x-o.x),s)._round():c.y>=s&&(c=new n(o.x+(s-o.y)/(c.y-o.y)*(c.x-o.x),s)._round()),u&&o.equals(u[u.length-1])||(u=[o],a.push(u)),u.push(c)))));}}return a}function ku(t,e,r,i){const s=[],a=t.image,o=a.pixelRatio,l=a.paddedRect.w-2,u=a.paddedRect.h-2,c=t.right-t.left,h=t.bottom-t.top,p=a.stretchX||[[0,l]],d=a.stretchY||[[0,u]],f=(t,e)=>t+e[1]-e[0],y=p.reduce(f,0),m=d.reduce(f,0),g=l-y,x=u-m;let v=0,b=y,w=0,_=m,A=0,k=g,S=0,I=x;if(a.content&&i){const t=a.content;v=Su(p,0,t[0]),w=Su(d,0,t[1]),b=Su(p,t[0],t[2]),_=Su(d,t[1],t[3]),A=t[0]-v,S=t[1]-w,k=t[2]-t[0]-b,I=t[3]-t[1]-_;}const T=(i,s,l,u)=>{const p=Tu(i.stretch-v,b,c,t.left),d=zu(i.fixed-A,k,i.stretch,y),f=Tu(s.stretch-w,_,h,t.top),g=zu(s.fixed-S,I,s.stretch,m),x=Tu(l.stretch-v,b,c,t.left),T=zu(l.fixed-A,k,l.stretch,y),z=Tu(u.stretch-w,_,h,t.top),E=zu(u.fixed-S,I,u.stretch,m),C=new n(p,f),M=new n(x,f),B=new n(x,z),D=new n(p,z),P=new n(d/o,g/o),V=new n(T/o,E/o),F=e*Math.PI/180;if(F){const t=Math.sin(F),e=Math.cos(F),r=[e,-t,t,e];C._matMult(r),M._matMult(r),D._matMult(r),B._matMult(r);}const R=i.stretch+i.fixed,L=s.stretch+s.fixed;return {tl:C,tr:M,bl:D,br:B,tex:{x:a.paddedRect.x+1+R,y:a.paddedRect.y+1+L,w:l.stretch+l.fixed-R,h:u.stretch+u.fixed-L},writingMode:void 0,glyphOffset:[0,0],sectionIndex:0,pixelOffsetTL:P,pixelOffsetBR:V,minFontScaleX:k/o/c,minFontScaleY:I/o/h,isSDF:r}};if(i&&(a.stretchX||a.stretchY)){const t=Iu(p,g,y),e=Iu(d,x,m);for(let r=0;r0)for(let t=(this.length>>1)-1;t>=0;t--)this._down(t);}push(t){this.data.push(t),this.length++,this._up(this.length-1);}pop(){if(0===this.length)return;const t=this.data[0],e=this.data.pop();return this.length--,this.length>0&&(this.data[0]=e,this._down(0)),t}peek(){return this.data[0]}_up(t){const{data:e,compare:r}=this,i=e[t];for(;t>0;){const n=t-1>>1,s=e[n];if(r(i,s)>=0)break;e[t]=s,t=n;}e[t]=i;}_down(t){const{data:e,compare:r}=this,i=this.length>>1,n=e[t];for(;t=0)break;e[t]=s,t=i;}e[t]=n;}}function Cu(t,e){return te?1:0}function Mu(t,e=1,r=!1){let i=1/0,s=1/0,a=-1/0,o=-1/0;const l=t[0];for(let t=0;ta)&&(a=e.x),(!t||e.y>o)&&(o=e.y);}const u=Math.min(a-i,o-s);let c=u/2;const h=new Eu([],Bu);if(0===u)return new n(i,s);for(let e=i;ep.d||!p.d)&&(p=i,r&&console.log("found best %d after %d probes",Math.round(1e4*i.d)/1e4,d)),i.max-p.d<=e||(c=i.h/2,h.push(new Du(i.p.x-c,i.p.y-c,c,t)),h.push(new Du(i.p.x+c,i.p.y-c,c,t)),h.push(new Du(i.p.x-c,i.p.y+c,c,t)),h.push(new Du(i.p.x+c,i.p.y+c,c,t)),d+=4);}return r&&(console.log(`num probes: ${d}`),console.log(`best distance: ${p.d}`)),p.p}function Bu(t,e){return e.max-t.max}function Du(t,e,r,i){this.p=new n(t,e),this.h=r,this.d=function(t,e){let r=!1,i=1/0;for(let n=0;nt.y!=o.y>t.y&&t.x<(o.x-n.x)*(t.y-n.y)/(o.y-n.y)+n.x&&(r=!r),i=Math.min(i,ra(t,n,o));}}return (r?1:-1)*Math.sqrt(i)}(this.p,i),this.max=this.d+this.h*Math.SQRT2;}const Pu=Number.POSITIVE_INFINITY;function Vu(t,e){return e[1]!==Pu?function(t,e,r){let i=0,n=0;switch(e=Math.abs(e),r=Math.abs(r),t){case"top-right":case"top-left":case"top":n=r-7;break;case"bottom-right":case"bottom-left":case"bottom":n=7-r;}switch(t){case"top-right":case"bottom-right":case"right":i=-e;break;case"top-left":case"bottom-left":case"left":i=e;}return [i,n]}(t,e[0],e[1]):function(t,e){let r=0,i=0;e<0&&(e=0);const n=e/Math.sqrt(2);switch(t){case"top-right":case"top-left":i=n-7;break;case"bottom-right":case"bottom-left":i=7-n;break;case"bottom":i=7-e;break;case"top":i=e-7;}switch(t){case"top-right":case"bottom-right":r=-n;break;case"top-left":case"bottom-left":r=n;break;case"left":r=e;break;case"right":r=-e;}return [r,i]}(t,e[0])}function Fu(t,e,r,i,n,s,a,o){t.createArrays(),t.tilePixelRatio=8192/(512*t.overscaling),t.compareText={},t.iconsNeedLinear=!1;const l=t.layers[0].layout,u=t.layers[0]._unevaluatedLayout._values,c={};if("composite"===t.textSizeData.kind){const{minZoom:e,maxZoom:r}=t.textSizeData;c.compositeTextSizes=[u["text-size"].possiblyEvaluate(new gn(e),a),u["text-size"].possiblyEvaluate(new gn(r),a)];}if("composite"===t.iconSizeData.kind){const{minZoom:e,maxZoom:r}=t.iconSizeData;c.compositeIconSizes=[u["icon-size"].possiblyEvaluate(new gn(e),a),u["icon-size"].possiblyEvaluate(new gn(r),a)];}c.layoutTextSize=u["text-size"].possiblyEvaluate(new gn(o+1),a),c.layoutIconSize=u["icon-size"].possiblyEvaluate(new gn(o+1),a),c.textMaxSize=u["text-size"].possiblyEvaluate(new gn(18),a);const h=24*l.get("text-line-height"),p="map"===l.get("text-rotation-alignment")&&"point"!==l.get("symbol-placement"),d=l.get("text-keep-upright"),f=l.get("text-size");for(const s of t.features){const o=l.get("text-font").evaluate(s,{},a).join(","),u=f.evaluate(s,{},a),y=c.layoutTextSize.evaluate(s,{},a),m=(c.layoutIconSize.evaluate(s,{},a),{horizontal:{},vertical:void 0}),g=s.text;let x,v=[0,0];if(g){const i=g.toString(),c=24*l.get("text-letter-spacing").evaluate(s,{},a),f=tn(i)?c:0,x=l.get("text-anchor").evaluate(s,{},a),b=l.get("text-variable-anchor");if(!b){const t=l.get("text-radial-offset").evaluate(s,{},a);v=t?Vu(x,[24*t,Pu]):l.get("text-offset").evaluate(s,{},a).map(t=>24*t);}let w=p?"center":l.get("text-justify").evaluate(s,{},a);const _=l.get("symbol-placement"),A="point"===_?24*l.get("text-max-width").evaluate(s,{},a):0,k=()=>{t.allowVerticalPlacement&&Qi(i)&&(m.vertical=nu(g,e,r,n,o,A,h,x,"left",f,v,eu.vertical,!0,_,y,u));};if(!p&&b){const t="auto"===w?b.map(t=>Ru(t)):[w];let i=!1;for(let s=0;s{h.x<0||h.x>=8192||h.y<0||h.y>=8192||function(t,e,r,i,n,s,a,o,l,u,c,h,p,d,f,y,m,g,x,v,b,w,_,A,k){const S=t.addToLineVertexArray(e,r);let I,T,z,C,M,B,D,P=0,V=0,F=0,R=0,L=-1,U=-1;const O={};let $=xs(""),q=0,N=0;if(void 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See https://github.com/mapbox/mapbox-gl-js/issues/2907"),void 0!==b.sortKey&&t.addToSortKeyRanges(t.symbolInstances.length,b.sortKey),t.symbolInstances.emplaceBack(e.x,e.y,O.right>=0?O.right:-1,O.center>=0?O.center:-1,O.left>=0?O.left:-1,O.vertical||-1,L,U,$,void 0!==I?I:t.collisionBoxArray.length,void 0!==I?I+1:t.collisionBoxArray.length,void 0!==z?z:t.collisionBoxArray.length,void 0!==z?z+1:t.collisionBoxArray.length,void 0!==T?T:t.collisionBoxArray.length,void 0!==T?T+1:t.collisionBoxArray.length,C||t.collisionBoxArray.length,C?C+1:t.collisionBoxArray.length,u,F,R,P,V,Z,0,p,q,N,j);}(t,h,o,r,i,n,z,t.layers[0],t.collisionBoxArray,e.index,e.sourceLayerIndex,t.index,g,b,A,l,0,w,k,f,e,s,u,c,a);};if("line"===S)for(const n of Au(e.geometry,0,0,8192,8192)){const e=_u(n,v,_,r.vertical||y,i,24,x,t.overscaling,8192);for(const r of e){const e=y;e&&Nu(t,e.text,I,r)||C(n,r);}}else if("line-center"===S){for(const t of e.geometry)if(t.length>1){const e=wu(t,_,r.vertical||y,i,24,x);e&&C(t,e);}}else if("Polygon"===e.type)for(const t of Bo(e.geometry,0)){const e=Mu(t,16);C(t[0],new mu(e.x,e.y,0));}else if("LineString"===e.type)for(const t of e.geometry)C(t,new mu(t[0].x,t[0].y,0));else if("Point"===e.type)for(const t of e.geometry)for(const e of t)C([e],new mu(e.x,e.y,0));}function Uu(t,e,r,i,s,a,o,l,u,c,h,p,d,f,y){const m=function(t,e,r,i,s,a,o,l){const u=i.layout.get("text-rotate").evaluate(a,{})*Math.PI/180,c=[];for(const t of e.positionedLines)for(const i of t.positionedGlyphs){if(!i.rect)continue;const a=i.rect||{};let h=4,p=!0,d=1,f=0;const y=(s||l)&&i.vertical,m=i.metrics.advance*i.scale/2;if(l&&e.verticalizable){const e=24*(i.scale-1),r=(24-i.metrics.width*i.scale)/2;f=t.lineOffset/2-(i.imageName?-r:e);}if(i.imageName){const t=o[i.imageName];p=t.sdf,d=t.pixelRatio,h=1/d;}const g=s?[i.x+m,i.y]:[0,0];let x=s?[0,0]:[i.x+m+r[0],i.y+r[1]-f],v=[0,0];y&&(v=x,x=[0,0]);const b=(i.metrics.left-h)*i.scale-m+x[0],w=(-i.metrics.top-h)*i.scale+x[1],_=b+a.w*i.scale/d,A=w+a.h*i.scale/d,k=new n(b,w),S=new n(_,w),I=new n(b,A),T=new n(_,A);if(y){const t=new n(-m,m- -17),e=-Math.PI/2,r=12-m,s=new n(22-r,-(i.imageName?r:0)),a=new n(...v);k._rotateAround(e,t)._add(s)._add(a),S._rotateAround(e,t)._add(s)._add(a),I._rotateAround(e,t)._add(s)._add(a),T._rotateAround(e,t)._add(s)._add(a);}if(u){const t=Math.sin(u),e=Math.cos(u),r=[e,-t,t,e];k._matMult(r),S._matMult(r),I._matMult(r),T._matMult(r);}const z=new n(0,0),E=new n(0,0);c.push({tl:k,tr:S,bl:I,br:T,tex:a,writingMode:e.writingMode,glyphOffset:g,sectionIndex:i.sectionIndex,isSDF:p,pixelOffsetTL:z,pixelOffsetBR:E,minFontScaleX:0,minFontScaleY:0});}return c}(0,r,l,s,a,o,i,t.allowVerticalPlacement),g=t.textSizeData;let x=null;"source"===g.kind?(x=[128*s.layout.get("text-size").evaluate(o,{},y)],x[0]>32640&&E(`${t.layerIds[0]}: Value for "text-size" is >= 255. Reduce your "text-size".`)):"composite"===g.kind&&(x=[128*f.compositeTextSizes[0].evaluate(o,{},y),128*f.compositeTextSizes[1].evaluate(o,{},y)],(x[0]>32640||x[1]>32640)&&E(`${t.layerIds[0]}: Value for "text-size" is >= 255. Reduce your "text-size".`)),t.addSymbols(t.text,m,x,l,a,o,c,e,u.lineStartIndex,u.lineLength,d,y);for(const e of h)p[e]=t.text.placedSymbolArray.length-1;return 4*m.length}function Ou(t){for(const e in t)return t[e];return null}function $u(t,e,r,i,s,a,o,l,u){let c=a.top,p=a.bottom,d=a.left,f=a.right;const y=a.collisionPadding;if(y&&(d-=y[0],c-=y[1],f+=y[2],p+=y[3]),u){const t=new n(d,c),e=new n(f,c),r=new n(d,p),i=new n(f,p),s=h(u);t._rotate(s),e._rotate(s),r._rotate(s),i._rotate(s),d=Math.min(t.x,e.x,r.x,i.x),f=Math.max(t.x,e.x,r.x,i.x),c=Math.min(t.y,e.y,r.y,i.y),p=Math.max(t.y,e.y,r.y,i.y);}return t.emplaceBack(e.x,e.y,d,c,f,p,l,r,i,s),t.length-1}function qu(t){t.collisionPadding&&(t.top-=t.collisionPadding[1],t.bottom+=t.collisionPadding[3]);const e=t.bottom-t.top;return e>0?Math.max(10,e):null}function Nu(t,e,r,i){const n=t.compareText;if(e in n){const t=n[e];for(let e=t.length-1;e>=0;e--)if(i.dist(t[e])t.id),this.index=t.index,this.pixelRatio=t.pixelRatio,this.sourceLayerIndex=t.sourceLayerIndex,this.hasPattern=!1,this.hasRTLText=!1,this.sortKeyRanges=[],this.collisionCircleArray=[],this.placementInvProjMatrix=ya([]),this.placementViewportMatrix=ya([]);const e=this.layers[0]._unevaluatedLayout._values;this.textSizeData=Al(this.zoom,e["text-size"]),this.iconSizeData=Al(this.zoom,e["icon-size"]);const r=this.layers[0].layout,i=r.get("symbol-sort-key"),n=r.get("symbol-z-order");this.canOverlap=r.get("text-allow-overlap")||r.get("icon-allow-overlap")||r.get("text-ignore-placement")||r.get("icon-ignore-placement"),this.sortFeaturesByKey="viewport-y"!==n&&void 0!==i.constantOr(1),this.sortFeaturesByY=("viewport-y"===n||"auto"===n&&!this.sortFeaturesByKey)&&this.canOverlap,"point"===r.get("symbol-placement")&&(this.writingModes=r.get("text-writing-mode").map(t=>eu[t])),this.stateDependentLayerIds=this.layers.filter(t=>t.isStateDependent()).map(t=>t.id),this.sourceID=t.sourceID;}createArrays(){this.text=new Hu(new Fs(this.layers,this.zoom,t=>/^text/.test(t))),this.icon=new Hu(new Fs(this.layers,this.zoom,t=>/^icon/.test(t))),this.glyphOffsetArray=new hs,this.lineVertexArray=new ps,this.symbolInstances=new cs;}calculateGlyphDependencies(t,e,r,i,n){for(let s=0;s0)&&("constant"!==s.value.kind||s.value.value.length>0),u="constant"!==o.value.kind||!!o.value.value||Object.keys(o.parameters).length>0,c=n.get("symbol-sort-key");if(this.features=[],!l&&!u)return;const h=e.iconDependencies,p=e.glyphDependencies,d=e.availableImages,f=new gn(this.zoom);for(const{feature:e,id:a,index:o,sourceLayerIndex:y}of t){const t=i._featureFilter.needGeometry,m=Zs(e,t);if(!i._featureFilter.filter(f,m,r))continue;let g,x;if(t||(m.geometry=Ks(e)),l){const t=i.getValueAndResolveTokens("text-field",m,r,d),e=pe.factory(t);Gu(e)&&(this.hasRTLText=!0),(!this.hasRTLText||"unavailable"===fn()||this.hasRTLText&&mn.isParsed())&&(g=Tl(e,i,m));}if(u){const t=i.getValueAndResolveTokens("icon-image",m,r,d);x=t instanceof de?t:de.fromString(t);}if(!g&&!x)continue;const v=this.sortFeaturesByKey?c.evaluate(m,{},r):void 0;if(this.features.push({id:a,text:g,icon:x,index:o,sourceLayerIndex:y,geometry:m.geometry,properties:e.properties,type:ju[e.type],sortKey:v}),x&&(h[x.name]=!0),g){const t=s.evaluate(m,{},r).join(","),e="map"===n.get("text-rotation-alignment")&&"point"!==n.get("symbol-placement");this.allowVerticalPlacement=this.writingModes&&this.writingModes.indexOf(eu.vertical)>=0;for(const r of g.sections)if(r.image)h[r.image.name]=!0;else {const i=Qi(g.toString()),n=r.fontStack||t,s=p[n]=p[n]||{};this.calculateGlyphDependencies(r.text,s,e,this.allowVerticalPlacement,i);}}}"line"===n.get("symbol-placement")&&(this.features=function(t){const e={},r={},i=[];let n=0;function s(e){i.push(t[e]),n++;}function a(t,e,n){const s=r[t];return delete r[t],r[e]=s,i[s].geometry[0].pop(),i[s].geometry[0]=i[s].geometry[0].concat(n[0]),s}function o(t,r,n){const s=e[r];return delete e[r],e[t]=s,i[s].geometry[0].shift(),i[s].geometry[0]=n[0].concat(i[s].geometry[0]),s}function l(t,e,r){const i=r?e[0][e[0].length-1]:e[0][0];return `${t}:${i.x}:${i.y}`}for(let u=0;ut.geometry)}(this.features)),this.sortFeaturesByKey&&this.features.sort((t,e)=>t.sortKey-e.sortKey);}update(t,e,r){this.stateDependentLayers.length&&(this.text.programConfigurations.updatePaintArrays(t,e,this.layers,r),this.icon.programConfigurations.updatePaintArrays(t,e,this.layers,r));}isEmpty(){return 0===this.symbolInstances.length&&!this.hasRTLText}uploadPending(){return !this.uploaded||this.text.programConfigurations.needsUpload||this.icon.programConfigurations.needsUpload}upload(t){!this.uploaded&&this.hasDebugData()&&(this.textCollisionBox.upload(t),this.iconCollisionBox.upload(t)),this.text.upload(t,this.sortFeaturesByY,!this.uploaded,this.text.programConfigurations.needsUpload),this.icon.upload(t,this.sortFeaturesByY,!this.uploaded,this.icon.programConfigurations.needsUpload),this.uploaded=!0;}destroyDebugData(){this.textCollisionBox.destroy(),this.iconCollisionBox.destroy();}destroy(){this.text.destroy(),this.icon.destroy(),this.hasDebugData()&&this.destroyDebugData();}addToLineVertexArray(t,e){const r=this.lineVertexArray.length;if(void 0!==t.segment){let r=t.dist(e[t.segment+1]),i=t.dist(e[t.segment]);const n={};for(let i=t.segment+1;i=0;r--)n[r]={x:e[r].x,y:e[r].y,tileUnitDistanceFromAnchor:i},r>0&&(i+=e[r-1].dist(e[r]));for(let t=0;t=0?e.rightJustifiedTextSymbolIndex:e.centerJustifiedTextSymbolIndex>=0?e.centerJustifiedTextSymbolIndex:e.leftJustifiedTextSymbolIndex>=0?e.leftJustifiedTextSymbolIndex:e.verticalPlacedTextSymbolIndex>=0?e.verticalPlacedTextSymbolIndex:i),s=kl(this.textSizeData,t,n)/24;return this.tilePixelRatio*s}getSymbolInstanceIconSize(t,e,r){const i=this.icon.placedSymbolArray.get(r),n=kl(this.iconSizeData,t,i);return this.tilePixelRatio*n}_commitDebugCollisionVertexUpdate(t,e,r){t.emplaceBack(e,-r,-r),t.emplaceBack(e,r,-r),t.emplaceBack(e,r,r),t.emplaceBack(e,-r,r);}_updateTextDebugCollisionBoxes(t,e,r,i,n,s){for(let a=i;a0}hasIconData(){return this.icon.segments.get().length>0}hasDebugData(){return this.textCollisionBox&&this.iconCollisionBox}hasTextCollisionBoxData(){return this.hasDebugData()&&this.textCollisionBox.segments.get().length>0}hasIconCollisionBoxData(){return this.hasDebugData()&&this.iconCollisionBox.segments.get().length>0}addIndicesForPlacedSymbol(t,e){const r=t.placedSymbolArray.get(e),i=r.vertexStartIndex+4*r.numGlyphs;for(let e=r.vertexStartIndex;ei[t]-i[e]||n[e]-n[t]),s}addToSortKeyRanges(t,e){const r=this.sortKeyRanges[this.sortKeyRanges.length-1];r&&r.sortKey===e?r.symbolInstanceEnd=t+1:this.sortKeyRanges.push({sortKey:e,symbolInstanceStart:t,symbolInstanceEnd:t+1});}sortFeatures(t){if(this.sortFeaturesByY&&this.sortedAngle!==t&&!(this.text.segments.get().length>1||this.icon.segments.get().length>1)){this.symbolInstanceIndexes=this.getSortedSymbolIndexes(t),this.sortedAngle=t,this.text.indexArray.clear(),this.icon.indexArray.clear(),this.featureSortOrder=[];for(const t of this.symbolInstanceIndexes){const e=this.symbolInstances.get(t);this.featureSortOrder.push(e.featureIndex),[e.rightJustifiedTextSymbolIndex,e.centerJustifiedTextSymbolIndex,e.leftJustifiedTextSymbolIndex].forEach((t,e,r)=>{t>=0&&r.indexOf(t)===e&&this.addIndicesForPlacedSymbol(this.text,t);}),e.verticalPlacedTextSymbolIndex>=0&&this.addIndicesForPlacedSymbol(this.text,e.verticalPlacedTextSymbolIndex),e.placedIconSymbolIndex>=0&&this.addIndicesForPlacedSymbol(this.icon,e.placedIconSymbolIndex),e.verticalPlacedIconSymbolIndex>=0&&this.addIndicesForPlacedSymbol(this.icon,e.verticalPlacedIconSymbolIndex);}this.text.indexBuffer&&this.text.indexBuffer.updateData(this.text.indexArray),this.icon.indexBuffer&&this.icon.indexBuffer.updateData(this.icon.indexArray);}}}Zi("SymbolBucket",Yu,{omit:["layers","collisionBoxArray","features","compareText"]}),Yu.MAX_GLYPHS=65535,Yu.addDynamicAttributes=Xu;const Wu=new Mn({"symbol-placement":new In(Lt.layout_symbol["symbol-placement"]),"symbol-spacing":new In(Lt.layout_symbol["symbol-spacing"]),"symbol-avoid-edges":new In(Lt.layout_symbol["symbol-avoid-edges"]),"symbol-sort-key":new Tn(Lt.layout_symbol["symbol-sort-key"]),"symbol-z-order":new In(Lt.layout_symbol["symbol-z-order"]),"icon-allow-overlap":new In(Lt.layout_symbol["icon-allow-overlap"]),"icon-ignore-placement":new In(Lt.layout_symbol["icon-ignore-placement"]),"icon-optional":new In(Lt.layout_symbol["icon-optional"]),"icon-rotation-alignment":new In(Lt.layout_symbol["icon-rotation-alignment"]),"icon-size":new Tn(Lt.layout_symbol["icon-size"]),"icon-text-fit":new In(Lt.layout_symbol["icon-text-fit"]),"icon-text-fit-padding":new In(Lt.layout_symbol["icon-text-fit-padding"]),"icon-image":new Tn(Lt.layout_symbol["icon-image"]),"icon-rotate":new Tn(Lt.layout_symbol["icon-rotate"]),"icon-padding":new In(Lt.layout_symbol["icon-padding"]),"icon-keep-upright":new In(Lt.layout_symbol["icon-keep-upright"]),"icon-offset":new Tn(Lt.layout_symbol["icon-offset"]),"icon-anchor":new Tn(Lt.layout_symbol["icon-anchor"]),"icon-pitch-alignment":new In(Lt.layout_symbol["icon-pitch-alignment"]),"text-pitch-alignment":new In(Lt.layout_symbol["text-pitch-alignment"]),"text-rotation-alignment":new In(Lt.layout_symbol["text-rotation-alignment"]),"text-field":new Tn(Lt.layout_symbol["text-field"]),"text-font":new Tn(Lt.layout_symbol["text-font"]),"text-size":new Tn(Lt.layout_symbol["text-size"]),"text-max-width":new Tn(Lt.layout_symbol["text-max-width"]),"text-line-height":new In(Lt.layout_symbol["text-line-height"]),"text-letter-spacing":new Tn(Lt.layout_symbol["text-letter-spacing"]),"text-justify":new Tn(Lt.layout_symbol["text-justify"]),"text-radial-offset":new Tn(Lt.layout_symbol["text-radial-offset"]),"text-variable-anchor":new In(Lt.layout_symbol["text-variable-anchor"]),"text-anchor":new Tn(Lt.layout_symbol["text-anchor"]),"text-max-angle":new In(Lt.layout_symbol["text-max-angle"]),"text-writing-mode":new In(Lt.layout_symbol["text-writing-mode"]),"text-rotate":new Tn(Lt.layout_symbol["text-rotate"]),"text-padding":new In(Lt.layout_symbol["text-padding"]),"text-keep-upright":new In(Lt.layout_symbol["text-keep-upright"]),"text-transform":new Tn(Lt.layout_symbol["text-transform"]),"text-offset":new Tn(Lt.layout_symbol["text-offset"]),"text-allow-overlap":new In(Lt.layout_symbol["text-allow-overlap"]),"text-ignore-placement":new In(Lt.layout_symbol["text-ignore-placement"]),"text-optional":new In(Lt.layout_symbol["text-optional"])});var Qu={paint:new Mn({"icon-opacity":new Tn(Lt.paint_symbol["icon-opacity"]),"icon-color":new Tn(Lt.paint_symbol["icon-color"]),"icon-halo-color":new Tn(Lt.paint_symbol["icon-halo-color"]),"icon-halo-width":new Tn(Lt.paint_symbol["icon-halo-width"]),"icon-halo-blur":new Tn(Lt.paint_symbol["icon-halo-blur"]),"icon-translate":new In(Lt.paint_symbol["icon-translate"]),"icon-translate-anchor":new In(Lt.paint_symbol["icon-translate-anchor"]),"text-opacity":new Tn(Lt.paint_symbol["text-opacity"]),"text-color":new Tn(Lt.paint_symbol["text-color"],{runtimeType:Jt,getOverride:t=>t.textColor,hasOverride:t=>!!t.textColor}),"text-halo-color":new Tn(Lt.paint_symbol["text-halo-color"]),"text-halo-width":new Tn(Lt.paint_symbol["text-halo-width"]),"text-halo-blur":new Tn(Lt.paint_symbol["text-halo-blur"]),"text-translate":new In(Lt.paint_symbol["text-translate"]),"text-translate-anchor":new In(Lt.paint_symbol["text-translate-anchor"])}),layout:Wu};class tc{constructor(t){this.type=t.property.overrides?t.property.overrides.runtimeType:Zt,this.defaultValue=t;}evaluate(t){if(t.formattedSection){const e=this.defaultValue.property.overrides;if(e&&e.hasOverride(t.formattedSection))return e.getOverride(t.formattedSection)}return t.feature&&t.featureState?this.defaultValue.evaluate(t.feature,t.featureState):this.defaultValue.property.specification.default}eachChild(t){this.defaultValue.isConstant()||t(this.defaultValue.value._styleExpression.expression);}outputDefined(){return !1}serialize(){return null}}Zi("FormatSectionOverride",tc,{omit:["defaultValue"]});class ec extends Us{constructor(t){super(t,Qu);}recalculate(t,e){if(super.recalculate(t,e),"auto"===this.layout.get("icon-rotation-alignment")&&(this.layout._values["icon-rotation-alignment"]="point"!==this.layout.get("symbol-placement")?"map":"viewport"),"auto"===this.layout.get("text-rotation-alignment")&&(this.layout._values["text-rotation-alignment"]="point"!==this.layout.get("symbol-placement")?"map":"viewport"),"auto"===this.layout.get("text-pitch-alignment")&&(this.layout._values["text-pitch-alignment"]=this.layout.get("text-rotation-alignment")),"auto"===this.layout.get("icon-pitch-alignment")&&(this.layout._values["icon-pitch-alignment"]=this.layout.get("icon-rotation-alignment")),"point"===this.layout.get("symbol-placement")){const t=this.layout.get("text-writing-mode");if(t){const e=[];for(const r of t)e.indexOf(r)<0&&e.push(r);this.layout._values["text-writing-mode"]=e;}else this.layout._values["text-writing-mode"]=["horizontal"];}this._setPaintOverrides();}getValueAndResolveTokens(t,e,r,i){const n=this.layout.get(t).evaluate(e,{},r,i),s=this._unevaluatedLayout._values[t];return s.isDataDriven()||Qr(s.value)||!n?n:function(t,e){return e.replace(/{([^{}]+)}/g,(e,r)=>r in t?String(t[r]):"")}(e.properties,n)}createBucket(t){return new Yu(t)}queryRadius(){return 0}queryIntersectsFeature(){return !1}_setPaintOverrides(){for(const t of Qu.paint.overridableProperties){if(!ec.hasPaintOverride(this.layout,t))continue;const e=this.paint.get(t),r=new tc(e),i=new Wr(r,e.property.specification);let n=null;n="constant"===e.value.kind||"source"===e.value.kind?new ei("source",i):new ri("composite",i,e.value.zoomStops,e.value._interpolationType),this.paint._values[t]=new kn(e.property,n,e.parameters);}}_handleOverridablePaintPropertyUpdate(t,e,r){return !(!this.layout||e.isDataDriven()||r.isDataDriven())&&ec.hasPaintOverride(this.layout,t)}static hasPaintOverride(t,e){const r=t.get("text-field"),i=Qu.paint.properties[e];let n=!1;const s=t=>{for(const e of t)if(i.overrides&&i.overrides.hasOverride(e))return void(n=!0)};if("constant"===r.value.kind&&r.value.value instanceof pe)s(r.value.value.sections);else if("source"===r.value.kind){const t=e=>{n||(e instanceof xe&&me(e.value)===te?s(e.value.sections):e instanceof _e?s(e.sections):e.eachChild(t));},e=r.value;e._styleExpression&&t(e._styleExpression.expression);}return n}getProgramConfiguration(t){return new Vs(this,t)}}var rc={paint:new Mn({"background-color":new In(Lt.paint_background["background-color"]),"background-pattern":new En(Lt.paint_background["background-pattern"]),"background-opacity":new In(Lt.paint_background["background-opacity"])})},ic={paint:new Mn({"raster-opacity":new In(Lt.paint_raster["raster-opacity"]),"raster-hue-rotate":new In(Lt.paint_raster["raster-hue-rotate"]),"raster-brightness-min":new In(Lt.paint_raster["raster-brightness-min"]),"raster-brightness-max":new In(Lt.paint_raster["raster-brightness-max"]),"raster-saturation":new In(Lt.paint_raster["raster-saturation"]),"raster-contrast":new In(Lt.paint_raster["raster-contrast"]),"raster-resampling":new In(Lt.paint_raster["raster-resampling"]),"raster-fade-duration":new In(Lt.paint_raster["raster-fade-duration"])})};class nc extends Us{constructor(t){super(t,{}),this.implementation=t;}is3D(){return "3d"===this.implementation.renderingMode}hasOffscreenPass(){return void 0!==this.implementation.prerender}recalculate(){}updateTransitions(){}hasTransition(){}serialize(){}onAdd(t){this.implementation.onAdd&&this.implementation.onAdd(t,t.painter.context.gl);}onRemove(t){this.implementation.onRemove&&this.implementation.onRemove(t,t.painter.context.gl);}}var sc={paint:new Mn({"sky-type":new In(Lt.paint_sky["sky-type"]),"sky-atmosphere-sun":new In(Lt.paint_sky["sky-atmosphere-sun"]),"sky-atmosphere-sun-intensity":new In(Lt.paint_sky["sky-atmosphere-sun-intensity"]),"sky-gradient-center":new In(Lt.paint_sky["sky-gradient-center"]),"sky-gradient-radius":new In(Lt.paint_sky["sky-gradient-radius"]),"sky-gradient":new Cn(Lt.paint_sky["sky-gradient"]),"sky-atmosphere-halo-color":new In(Lt.paint_sky["sky-atmosphere-halo-color"]),"sky-atmosphere-color":new In(Lt.paint_sky["sky-atmosphere-color"]),"sky-opacity":new In(Lt.paint_sky["sky-opacity"])})};function ac(t,e,r){const i=wa(0,0,1),n=Va(Pa());return function(t,e,r){r*=.5;var i=e[0],n=e[1],s=e[2],a=e[3],o=Math.sin(r),l=Math.cos(r);t[0]=i*l-s*o,t[1]=n*l+a*o,t[2]=s*l+i*o,t[3]=a*l-n*o;}(n,n,r?-h(t)+Math.PI:h(t)),Fa(n,n,-h(e)),Ea(i,i,n),Ia(i,i)}const oc={circle:class extends Us{constructor(t){super(t,pa);}createBucket(t){return new Gs(t)}queryRadius(t){const e=t;return oa("circle-radius",this,e)+oa("circle-stroke-width",this,e)+la(this.paint.get("circle-translate"))}queryIntersectsFeature(t,e,r,i,n,s,a,o){const l="map"===this.paint.get("circle-pitch-alignment");if(l&&t.queryGeometry.isAboveHorizon)return !1;const u=ca(this.paint.get("circle-translate"),this.paint.get("circle-translate-anchor"),s.angle,t.pixelToTileUnitsFactor),c=this.paint.get("circle-radius").evaluate(e,r)+this.paint.get("circle-stroke-width").evaluate(e,r),h=l?c*t.pixelToTileUnitsFactor:c;for(const e of i)for(const r of e){const e=r.add(u),i=o&&s.elevation?s.elevation.exaggeration()*o.getElevationAt(e.x,e.y,!0):0,n=l?e:Ua(e,i,a),c=l?t.tilespaceRays.map(t=>qa(t,i)):t.queryGeometry.screenGeometry;let p=h;const d=Da([],[r.x,r.y,i,1],a);if("viewport"===this.paint.get("circle-pitch-scale")&&"map"===this.paint.get("circle-pitch-alignment")?p*=d[3]/s.cameraToCenterDistance:"map"===this.paint.get("circle-pitch-scale")&&"viewport"===this.paint.get("circle-pitch-alignment")&&(p*=s.cameraToCenterDistance/d[3]),Js(c,n,p))return !0}return !1}getProgramIds(){return ["circle"]}getProgramConfiguration(t){return new Vs(this,t)}},heatmap:class extends Us{createBucket(t){return new Na(t)}constructor(t){super(t,Ha),this._updateColorRamp();}_handleSpecialPaintPropertyUpdate(t){"heatmap-color"===t&&this._updateColorRamp();}_updateColorRamp(){this.colorRamp=Ja({expression:this._transitionablePaint._values["heatmap-color"].value.expression,evaluationKey:"heatmapDensity",image:this.colorRamp}),this.colorRampTexture=null;}resize(){this.heatmapFbo&&(this.heatmapFbo.destroy(),this.heatmapFbo=null);}queryRadius(){return 0}queryIntersectsFeature(){return !1}hasOffscreenPass(){return 0!==this.paint.get("heatmap-opacity")&&"none"!==this.visibility}getProgramIds(){return ["heatmap","heatmapTexture"]}getProgramConfiguration(t){return new Vs(this,t)}},hillshade:class extends Us{constructor(t){super(t,Ya);}hasOffscreenPass(){return 0!==this.paint.get("hillshade-exaggeration")&&"none"!==this.visibility}getProgramIds(){return ["hillshade","hillshadePrepare"]}getProgramConfiguration(t){return new Vs(this,t)}},fill:class extends Us{constructor(t){super(t,Lo);}getProgramIds(){const t=this.paint.get("fill-pattern"),e=t&&t.constantOr(1),r=[e?"fillPattern":"fill"];return this.paint.get("fill-antialias")&&r.push(e&&!this.getPaintProperty("fill-outline-color")?"fillOutlinePattern":"fillOutline"),r}getProgramConfiguration(t){return new Vs(this,t)}recalculate(t,e){super.recalculate(t,e);const r=this.paint._values["fill-outline-color"];"constant"===r.value.kind&&void 0===r.value.value&&(this.paint._values["fill-outline-color"]=this.paint._values["fill-color"]);}createBucket(t){return new Fo(t)}queryRadius(){return la(this.paint.get("fill-translate"))}queryIntersectsFeature(t,e,r,i,n,s){return !t.queryGeometry.isAboveHorizon&&Ys(ua(t.tilespaceGeometry,this.paint.get("fill-translate"),this.paint.get("fill-translate-anchor"),s.angle,t.pixelToTileUnitsFactor),i)}isTileClipped(){return !0}},"fill-extrusion":class extends Us{constructor(t){super(t,il);}createBucket(t){return new el(t)}queryRadius(){return la(this.paint.get("fill-extrusion-translate"))}is3D(){return !0}getProgramIds(){return [this.paint.get("fill-extrusion-pattern").constantOr(1)?"fillExtrusionPattern":"fillExtrusion"]}getProgramConfiguration(t){return new Vs(this,t)}queryIntersectsFeature(t,e,r,i,s,a,o){const l=ca(this.paint.get("fill-extrusion-translate"),this.paint.get("fill-extrusion-translate-anchor"),a.angle,t.pixelToTileUnitsFactor),u=this.paint.get("fill-extrusion-height").evaluate(e,r),c=this.paint.get("fill-extrusion-base").evaluate(e,r),h=t.queryGeometry.screenGeometry,p=function(t,e,r,i,s){const a=[],o=[],l=s[8]*e,u=s[9]*e,c=s[10]*e,h=s[11]*e,p=s[8]*r,d=s[9]*r,f=s[10]*r,y=s[11]*r;for(const e of t){const t=[],r=[];for(const a of e){const e=a.x+i.x,o=a.y+i.y,m=s[0]*e+s[4]*o+s[12],g=s[1]*e+s[5]*o+s[13],x=s[2]*e+s[6]*o+s[14],v=s[3]*e+s[7]*o+s[15],b=x+c,w=v+h,_=m+p,A=g+d,k=x+f,S=v+y,I=new n((m+l)/w,(g+u)/w);I.z=b/w,t.push(I);const T=new n(_/S,A/S);T.z=k/S,r.push(T);}a.push(t),o.push(r);}return [a,o]}(i,c,u,l,o);return function(t,e,r){let i=1/0;Ys(r,e)&&(i=sl(r,e[0]));for(let n=0;n=3)for(let e=0;e{this._triggered=!1,this._callback();});}trigger(){this._triggered||(this._triggered=!0,this._channel?this._channel.port1.postMessage(!0):setTimeout(()=>{this._triggered=!1,this._callback();},0));}remove(){delete this._channel,this._callback=()=>{};}}const yc=a.performance;class mc{constructor(t){this._marks={start:[t.url,"start"].join("#"),end:[t.url,"end"].join("#"),measure:t.url.toString()},yc.mark(this._marks.start);}finish(){yc.mark(this._marks.end);let t=yc.getEntriesByName(this._marks.measure);return 0===t.length&&(yc.measure(this._marks.measure,this._marks.start,this._marks.end),t=yc.getEntriesByName(this._marks.measure),yc.clearMarks(this._marks.start),yc.clearMarks(this._marks.end),yc.clearMeasures(this._marks.measure)),t}}class gc{constructor(){this.tasks={},this.taskQueue=[],A(["process"],this),this.invoker=new fc(this.process),this.nextId=0;}add(t,e){const r=this.nextId++;return this.tasks[r]={fn:t,metadata:e,priority:xc(e),id:r},this.taskQueue.push(r),this.invoker.trigger(),{cancel:()=>{delete this.tasks[r];}}}process(){B();try{if(this.taskQueue=this.taskQueue.filter(t=>!!this.tasks[t]),!this.taskQueue.length)return;const t=this.pick();if(null===t)return;const e=this.tasks[t];if(delete this.tasks[t],this.taskQueue.length&&this.invoker.trigger(),!e)return;e.fn();}finally{}}pick(){let t=null,e=1/0;for(let r=0;rthis._ne.lng&&(i=this._sw.lng>=e&&e>=this._ne.lng),this._sw.lat<=r&&r<=this._ne.lat&&i}static convert(t){return !t||t instanceof vc?t:new vc(t)}}class bc{constructor(t,e){if(isNaN(t)||isNaN(e))throw new Error(`Invalid LngLat object: (${t}, ${e})`);if(this.lng=+t,this.lat=+e,this.lat>90||this.lat<-90)throw new Error("Invalid LngLat latitude value: must be between -90 and 90")}wrap(){return new bc(m(this.lng,-180,180),this.lat)}toArray(){return [this.lng,this.lat]}toString(){return `LngLat(${this.lng}, ${this.lat})`}distanceTo(t){const e=Math.PI/180,r=this.lat*e,i=t.lat*e,n=Math.sin(r)*Math.sin(i)+Math.cos(r)*Math.cos(i)*Math.cos((t.lng-this.lng)*e);return 6371008.8*Math.acos(Math.min(n,1))}toBounds(t=0){const e=360*t/40075017,r=e/Math.cos(Math.PI/180*this.lat);return new vc(new bc(this.lng-r,this.lat-e),new bc(this.lng+r,this.lat+e))}static convert(t){if(t instanceof bc)return t;if(Array.isArray(t)&&(2===t.length||3===t.length))return new bc(Number(t[0]),Number(t[1]));if(!Array.isArray(t)&&"object"==typeof t&&null!==t)return new bc(Number("lng"in t?t.lng:t.lon),Number(t.lat));throw new Error("`LngLatLike` argument must be specified as a LngLat instance, an object {lng: , lat: }, an object {lon: , lat: }, or an array of [, ]")}}const wc=2*Math.PI*6371008.8;function _c(t){return wc*Math.cos(t*Math.PI/180)}function Ac(t){return (180+t)/360}function kc(t){return (180-180/Math.PI*Math.log(Math.tan(Math.PI/4+t*Math.PI/360)))/360}function Sc(t,e){return t/_c(e)}function Ic(t){return 360/Math.PI*Math.atan(Math.exp((180-360*t)*Math.PI/180))-90}function Tc(t,e){return t*_c(Ic(e))}class zc{constructor(t,e,r=0){this.x=+t,this.y=+e,this.z=+r;}static fromLngLat(t,e=0){const r=bc.convert(t);return new zc(Ac(r.lng),kc(r.lat),Sc(e,r.lat))}toLngLat(){return new bc(360*this.x-180,Ic(this.y))}toAltitude(){return Tc(this.z,this.y)}meterInMercatorCoordinateUnits(){return 1/wc*(t=Ic(this.y),1/Math.cos(t*Math.PI/180));var t;}}function Ec(t,e,r){var i=2*Math.PI*6378137/256/Math.pow(2,r);return [t*i-2*Math.PI*6378137/2,e*i-2*Math.PI*6378137/2]}class Cc{constructor(t,e,r){this.z=t,this.x=e,this.y=r,this.key=Dc(0,t,t,e,r);}equals(t){return this.z===t.z&&this.x===t.x&&this.y===t.y}url(t,e){const r=(n=this.y,s=this.z,a=Ec(256*(i=this.x),256*(n=Math.pow(2,s)-n-1),s),o=Ec(256*(i+1),256*(n+1),s),a[0]+","+a[1]+","+o[0]+","+o[1]);var i,n,s,a,o;const l=function(t,e,r){let i,n="";for(let s=t;s>0;s--)i=1<this.canonical.z?new Bc(t,this.wrap,this.canonical.z,this.canonical.x,this.canonical.y):new Bc(t,this.wrap,t,this.canonical.x>>e,this.canonical.y>>e)}calculateScaledKey(t,e=!0){if(this.overscaledZ===t&&e)return this.key;if(t>this.canonical.z)return Dc(this.wrap*+e,t,this.canonical.z,this.canonical.x,this.canonical.y);{const r=this.canonical.z-t;return Dc(this.wrap*+e,t,t,this.canonical.x>>r,this.canonical.y>>r)}}isChildOf(t){if(t.wrap!==this.wrap)return !1;const e=this.canonical.z-t.canonical.z;return 0===t.overscaledZ||t.overscaledZ>e&&t.canonical.y===this.canonical.y>>e}children(t){if(this.overscaledZ>=t)return [new Bc(this.overscaledZ+1,this.wrap,this.canonical.z,this.canonical.x,this.canonical.y)];const e=this.canonical.z+1,r=2*this.canonical.x,i=2*this.canonical.y;return [new Bc(e,this.wrap,e,r,i),new Bc(e,this.wrap,e,r+1,i),new Bc(e,this.wrap,e,r,i+1),new Bc(e,this.wrap,e,r+1,i+1)]}isLessThan(t){return this.wrapt.wrap)&&(this.overscaledZt.overscaledZ)&&(this.canonical.xt.canonical.x)&&this.canonical.ye.getLayer(t)).filter(Boolean);if(0!==t.length){i.layers=t,i.stateDependentLayerIds&&(i.stateDependentLayers=i.stateDependentLayerIds.map(e=>t.filter(t=>t.id===e)[0]));for(const e of t)r[e.id]=i;}}return r}(t.buckets,e.style),this.hasSymbolBuckets=!1;for(const t in this.buckets){const e=this.buckets[t];if(e instanceof Yu){if(this.hasSymbolBuckets=!0,!r)break;e.justReloaded=!0;}}if(this.hasRTLText=!1,this.hasSymbolBuckets)for(const t in this.buckets){const e=this.buckets[t];if(e instanceof Yu&&e.hasRTLText){this.hasRTLText=!0,mn.isLoading()||mn.isLoaded()||"deferred"!==fn()||yn();break}}this.queryPadding=0;for(const t in this.buckets){const r=this.buckets[t];this.queryPadding=Math.max(this.queryPadding,e.style.getLayer(t).queryRadius(r));}t.imageAtlas&&(this.imageAtlas=t.imageAtlas),t.glyphAtlasImage&&(this.glyphAtlasImage=t.glyphAtlasImage);}else this.collisionBoxArray=new as;}unloadVectorData(){for(const t in this.buckets)this.buckets[t].destroy();this.buckets={},this.imageAtlasTexture&&this.imageAtlasTexture.destroy(),this.imageAtlas&&(this.imageAtlas=null),this.glyphAtlasTexture&&this.glyphAtlasTexture.destroy(),this.latestFeatureIndex=null,this.state="unloaded";}getBucket(t){return this.buckets[t.id]}upload(t){for(const e in this.buckets){const r=this.buckets[e];r.uploadPending()&&r.upload(t);}const e=t.gl;this.imageAtlas&&!this.imageAtlas.uploaded&&(this.imageAtlasTexture=new dc(t,this.imageAtlas.image,e.RGBA),this.imageAtlas.uploaded=!0),this.glyphAtlasImage&&(this.glyphAtlasTexture=new dc(t,this.glyphAtlasImage,e.ALPHA),this.glyphAtlasImage=null);}prepare(t){this.imageAtlas&&this.imageAtlas.patchUpdatedImages(t,this.imageAtlasTexture);}queryRenderedFeatures(t,e,r,i,n,s,a,o){return this.latestFeatureIndex&&this.latestFeatureIndex.rawTileData?this.latestFeatureIndex.query({tileResult:i,pixelPosMatrix:a,transform:s,params:n},t,e,r):{}}querySourceFeatures(t,e){const r=this.latestFeatureIndex;if(!r||!r.rawTileData)return;const i=r.loadVTLayers(),n=e?e.sourceLayer:"",s=i._geojsonTileLayer||i[n];if(!s)return;const a=di(e&&e.filter),{z:o,x:l,y:u}=this.tileID.canonical,c={z:o,x:l,y:u};for(let e=0;et)r=!1;else if(e)if(this.expirationTimee[a])return null}else {const o=1/i[a];let l=(t[a]-r[a])*o,u=(e[a]-r[a])*o;if(l>u){const t=l;l=u,u=t;}if(l>n&&(n=l),us)return null}return n}function $c(t,e,r,i,n,s,a,o,l,u,c){const h=i-t,p=n-e,d=s-r,f=a-t,y=o-e,m=l-r,g=c[1]*m-c[2]*y,x=c[2]*f-c[0]*m,v=c[0]*y-c[1]*f,b=h*g+p*x+d*v;if(Math.abs(b)<1e-15)return null;const w=1/b,_=u[0]-t,A=u[1]-e,k=u[2]-r,S=(_*g+A*x+k*v)*w;if(S<0||S>1)return null;const I=A*d-k*p,T=k*h-_*d,z=_*p-A*h,E=(c[0]*I+c[1]*T+c[2]*z)*w;return E<0||S+E>1?null:(f*I+y*T+m*z)*w}function qc(t,e,r){return (t-e)/(r-e)}function Nc(t,e,r,i,n,s,a,o,l){const u=1<{const s=i?1:0,a=(t+1)*r-s,o=e*r,l=(e+1)*r-s;n[0]=t*r,n[1]=o,n[2]=a,n[3]=l;};let a=new Uc(i);const o=[];for(let e=0;e=1;i/=2){const t=r[r.length-1];a=new Uc(i);for(let e=0;e0;){const{idx:o,t:d,nodex:f,nodey:y,depth:m}=p.pop();if(this.leaves[o]){Nc(f,y,m,t,e,r,i,c,h);const o=1<=t[2])return d}continue}let g=0;for(let p=0;p=l[u[r]]&&(u.splice(r,0,p),e=!0);e||(u[g]=p),g++;}}for(let t=0;t=this.dim+1||e<-1||e>=this.dim+1)throw new RangeError("out of range source coordinates for DEM data");return (e+1)*this.stride+(t+1)}_unpackMapbox(t,e,r){return (256*t*256+256*e+r)/10-1e4}_unpackTerrarium(t,e,r){return 256*t+e+r/256-32768}static pack(t,e){const r=[0,0,0,0],i=Gc.getUnpackVector(e);let n=Math.floor((t+i[3])/i[2]);return r[2]=n%256,n=Math.floor(n/256),r[1]=n%256,n=Math.floor(n/256),r[0]=n,r}getPixels(){return new Ga({width:this.stride,height:this.stride},new Uint8Array(this.data.buffer))}backfillBorder(t,e,r){if(this.dim!==t.dim)throw new Error("dem dimension mismatch");let i=e*this.dim,n=e*this.dim+this.dim,s=r*this.dim,a=r*this.dim+this.dim;switch(e){case-1:i=n-1;break;case 1:n=i+1;}switch(r){case-1:s=a-1;break;case 1:a=s+1;}const o=-e*this.dim,l=-r*this.dim;for(let e=s;e{this.remove(t,n);},r)),this.data[i].push(n),this.order.push(i),this.order.length>this.max){const t=this._getAndRemoveByKey(this.order[0]);t&&this.onRemove(t);}return this}has(t){return t.wrapped().key in this.data}getAndRemove(t){return this.has(t)?this._getAndRemoveByKey(t.wrapped().key):null}_getAndRemoveByKey(t){const e=this.data[t].shift();return e.timeout&&clearTimeout(e.timeout),0===this.data[t].length&&delete this.data[t],this.order.splice(this.order.indexOf(t),1),e.value}getByKey(t){const e=this.data[t];return e?e[0].value:null}get(t){return this.has(t)?this.data[t.wrapped().key][0].value:null}remove(t,e){if(!this.has(t))return this;const r=t.wrapped().key,i=void 0===e?0:this.data[r].indexOf(e),n=this.data[r][i];return this.data[r].splice(i,1),n.timeout&&clearTimeout(n.timeout),0===this.data[r].length&&delete this.data[r],this.onRemove(n.value),this.order.splice(this.order.indexOf(r),1),this}setMaxSize(t){for(this.max=t;this.order.length>this.max;){const t=this._getAndRemoveByKey(this.order[0]);t&&this.onRemove(t);}return this}filter(t){const e=[];for(const r in this.data)for(const i of this.data[r])t(i.value)||e.push(i);for(const t of e)this.remove(t.value.tileID,t);}}class Jc{constructor(t,e,r){this.context=t;const i=t.gl;this.buffer=i.createBuffer(),this.dynamicDraw=Boolean(r),this.context.unbindVAO(),t.bindElementBuffer.set(this.buffer),i.bufferData(i.ELEMENT_ARRAY_BUFFER,e.arrayBuffer,this.dynamicDraw?i.DYNAMIC_DRAW:i.STATIC_DRAW),this.dynamicDraw||delete e.arrayBuffer;}bind(){this.context.bindElementBuffer.set(this.buffer);}updateData(t){const e=this.context.gl;this.context.unbindVAO(),this.bind(),e.bufferSubData(e.ELEMENT_ARRAY_BUFFER,0,t.arrayBuffer);}destroy(){this.buffer&&(this.context.gl.deleteBuffer(this.buffer),delete this.buffer);}}const Yc={Int8:"BYTE",Uint8:"UNSIGNED_BYTE",Int16:"SHORT",Uint16:"UNSIGNED_SHORT",Int32:"INT",Uint32:"UNSIGNED_INT",Float32:"FLOAT"};class Wc{constructor(t,e,r,i){this.length=e.length,this.attributes=r,this.itemSize=e.bytesPerElement,this.dynamicDraw=i,this.context=t;const n=t.gl;this.buffer=n.createBuffer(),t.bindVertexBuffer.set(this.buffer),n.bufferData(n.ARRAY_BUFFER,e.arrayBuffer,this.dynamicDraw?n.DYNAMIC_DRAW:n.STATIC_DRAW),this.dynamicDraw||delete e.arrayBuffer;}bind(){this.context.bindVertexBuffer.set(this.buffer);}updateData(t){const e=this.context.gl;this.bind(),e.bufferSubData(e.ARRAY_BUFFER,0,t.arrayBuffer);}enableAttributes(t,e){for(let r=0;r{"source"===t.dataType&&"metadata"===t.sourceDataType&&(this._sourceLoaded=!0),this._sourceLoaded&&!this._paused&&"source"===t.dataType&&"content"===t.sourceDataType&&(this.reload(),this.transform&&this.update(this.transform));}),e.on("error",()=>{this._sourceErrored=!0;}),this._source=e,this._tiles={},this._cache=new Hc(0,this._unloadTile.bind(this)),this._timers={},this._cacheTimers={},this._maxTileCacheSize=null,this._loadedParentTiles={},this._coveredTiles={},this._state=new Lc;}onAdd(t){this.map=t,this._maxTileCacheSize=t?t._maxTileCacheSize:null;}loaded(){if(this._sourceErrored)return !0;if(!this._sourceLoaded)return !1;if(!this._source.loaded())return !1;for(const t in this._tiles){const e=this._tiles[t];if("loaded"!==e.state&&"errored"!==e.state)return !1}return !0}getSource(){return this._source}pause(){this._paused=!0;}resume(){if(!this._paused)return;const t=this._shouldReloadOnResume;this._paused=!1,this._shouldReloadOnResume=!1,t&&this.reload(),this.transform&&this.update(this.transform);}_loadTile(t,e){return t.isSymbolTile=this._onlySymbols,this._source.loadTile(t,e)}_unloadTile(t){if(this._source.unloadTile)return this._source.unloadTile(t,()=>{})}_abortTile(t){if(this._source.abortTile)return this._source.abortTile(t,()=>{})}serialize(){return this._source.serialize()}prepare(t){this._source.prepare&&this._source.prepare(),this._state.coalesceChanges(this._tiles,this.map?this.map.painter:null);for(const e in this._tiles){const r=this._tiles[e];r.upload(t),r.prepare(this.map.style.imageManager);}}getIds(){return g(this._tiles).map(t=>t.tileID).sort(Oh).map(t=>t.key)}getRenderableIds(t){const e=[];for(const r in this._tiles)this._isIdRenderable(+r,t)&&e.push(this._tiles[r]);return t?e.sort((t,e)=>{const r=t.tileID,i=e.tileID,s=new n(r.canonical.x,r.canonical.y)._rotate(this.transform.angle),a=new n(i.canonical.x,i.canonical.y)._rotate(this.transform.angle);return r.overscaledZ-i.overscaledZ||a.y-s.y||a.x-s.x}).map(t=>t.tileID.key):e.map(t=>t.tileID).sort(Oh).map(t=>t.key)}hasRenderableParent(t){const e=this.findLoadedParent(t,0);return !!e&&this._isIdRenderable(e.tileID.key)}_isIdRenderable(t, e){return this._tiles[t]&&this._tiles[t].hasData()&&!this._coveredTiles[t]&&(e||!this._tiles[t].holdingForFade())}reload(){if(this._paused)this._shouldReloadOnResume=!0;else {this._cache.reset();for(const t in this._tiles)"errored"!==this._tiles[t].state&&this._reloadTile(+t,"reloading");}}_reloadTile(t, e){const r=this._tiles[t];r&&("loading"!==r.state&&(r.state=e),this._loadTile(r,this._tileLoaded.bind(this,r,t,e)));}_tileLoaded(t, e, r, i){if(i)return t.state="errored",void(404!==i.status?this._source.fire(new Ft(i,{tile:t})):this.update(this.transform));t.timeAdded=N.now(),"expired"===r&&(t.refreshedUponExpiration=!0),this._setTileReloadTimer(e,t),"raster-dem"===this.getSource().type&&t.dem&&this._backfillDEM(t),this._state.initializeTileState(t,this.map?this.map.painter:null),this._source.fire(new Vt("data",{dataType:"source",tile:t,coord:t.tileID,sourceCacheId:this.id}));}_backfillDEM(t){const e=this.getRenderableIds();for(let i=0;i1||(Math.abs(r)>1&&(1===Math.abs(r+n)?r+=n:1===Math.abs(r-n)&&(r-=n)),e.dem&&t.dem&&(t.dem.backfillBorder(e.dem,r,i),t.neighboringTiles&&t.neighboringTiles[s]&&(t.neighboringTiles[s].backfilled=!0)));}}getTile(t){return this.getTileByID(t.key)}getTileByID(t){return this._tiles[t]}_retainLoadedChildren(t,e,r,i){for(const n in this._tiles){let s=this._tiles[n];if(i[n]||!s.hasData()||s.tileID.overscaledZ<=e||s.tileID.overscaledZ>r)continue;let a=s.tileID;for(;s&&s.tileID.overscaledZ>e+1;){const t=s.tileID.scaledTo(s.tileID.overscaledZ-1);s=this._tiles[t.key],s&&s.hasData()&&(a=t);}let o=a;for(;o.overscaledZ>e;)if(o=o.scaledTo(o.overscaledZ-1),t[o.key]){i[a.key]=a;break}}}findLoadedParent(t,e){if(t.key in this._loadedParentTiles){const r=this._loadedParentTiles[t.key];return r&&r.tileID.overscaledZ>=e?r:null}for(let r=t.overscaledZ-1;r>=e;r--){const e=t.scaledTo(r),i=this._getLoadedTile(e);if(i)return i}}_getLoadedTile(t){const e=this._tiles[t.key];return e&&e.hasData()?e:this._cache.getByKey(this._source.reparseOverscaled?t.wrapped().key:t.canonical.key)}updateCacheSize(t,e){e=e||this._source.tileSize;const r=Math.ceil(t.width/e)+1,i=Math.ceil(t.height/e)+1,n=Math.floor(r*i*5),s="number"==typeof this._maxTileCacheSize?Math.min(this._maxTileCacheSize,n):n;this._cache.setMaxSize(s);}handleWrapJump(t){const e=Math.round((t-(void 0===this._prevLng?t:this._prevLng))/360);if(this._prevLng=t,e){const t={};for(const r in this._tiles){const i=this._tiles[r];i.tileID=i.tileID.unwrapTo(i.tileID.wrap+e),t[i.tileID.key]=i;}this._tiles=t;for(const t in this._timers)clearTimeout(this._timers[t]),delete this._timers[t];for(const t in this._tiles)this._setTileReloadTimer(+t,this._tiles[t]);}}update(t,e,r){if(this.transform=t,!this._sourceLoaded||this._paused||this.transform.freezeTileCoverage)return;if(this.usedForTerrain&&!r)return;let i;this.updateCacheSize(t,e),this.handleWrapJump(this.transform.center.lng),this._coveredTiles={},this.used||this.usedForTerrain?this._source.tileID?i=t.getVisibleUnwrappedCoordinates(this._source.tileID).map(t=>new Bc(t.canonical.z,t.wrap,t.canonical.z,t.canonical.x,t.canonical.y)):(i=t.coveringTiles({tileSize:e||this._source.tileSize,minzoom:this._source.minzoom,maxzoom:this._source.maxzoom,roundZoom:this._source.roundZoom&&!r,reparseOverscaled:this._source.reparseOverscaled,useElevationData:!!this.transform.elevation&&!this.usedForTerrain}),this._source.hasTile&&(i=i.filter(t=>this._source.hasTile(t)))):i=[];const n=this._updateRetainedTiles(i);if($h(this._source.type)&&0!==i.length){const t={},e={},r=Object.keys(n);for(const i of r){const r=n[i],s=this._tiles[i];if(!s||s.fadeEndTime&&s.fadeEndTime<=N.now())continue;const a=this.findLoadedParent(r,Math.max(r.overscaledZ-Uh.maxOverzooming,this._source.minzoom));a&&(this._addTile(a.tileID),t[a.tileID.key]=a.tileID),e[i]=r;}const s=i[i.length-1].overscaledZ;for(const t in this._tiles){const r=this._tiles[t];if(n[t]||!r.hasData())continue;let i=r.tileID;for(;i.overscaledZ>s;){i=i.scaledTo(i.overscaledZ-1);const s=this._tiles[i.key];if(s&&s.hasData()&&e[i.key]){n[t]=r.tileID;break}}}for(const e in t)n[e]||(this._coveredTiles[e]=!0,n[e]=t[e]);}for(const t in n)this._tiles[t].clearFadeHold();const s=function(t,e){const r=[];for(const i in t)i in e||r.push(i);return r}(this._tiles,n);for(const t of s){const e=this._tiles[t];e.hasSymbolBuckets&&!e.holdingForFade()?e.setHoldDuration(this.map._fadeDuration):e.hasSymbolBuckets&&!e.symbolFadeFinished()||this._removeTile(+t);}this._updateLoadedParentTileCache(),this._onlySymbols&&this._source.afterUpdate&&this._source.afterUpdate();}releaseSymbolFadeTiles(){for(const t in this._tiles)this._tiles[t].holdingForFade()&&this._removeTile(+t);}_updateRetainedTiles(t){const e={};if(0===t.length)return e;const r={},i=t[t.length-1].overscaledZ,n=t[0].overscaledZ,s=Math.max(n-Uh.maxOverzooming,this._source.minzoom),a=Math.max(n+Uh.maxUnderzooming,this._source.minzoom),o={};for(const r of t){const t=this._addTile(r);e[r.key]=r,t.hasData()||i=this._source.maxzoom){const t=i.children(this._source.maxzoom)[0],r=this.getTile(t);if(r&&r.hasData()){e[t.key]=t;continue}}else {const t=i.children(this._source.maxzoom);if(e[t[0].key]&&e[t[1].key]&&e[t[2].key]&&e[t[3].key])continue}let n=t.wasRequested();for(let a=i.overscaledZ-1;a>=s;--a){const s=i.scaledTo(a);if(r[s.key])break;if(r[s.key]=!0,t=this.getTile(s),!t&&n&&(t=this._addTile(s)),t&&(e[s.key]=s,n=t.wasRequested(),t.hasData()))break}}return e}_updateLoadedParentTileCache(){this._loadedParentTiles={};for(const t in this._tiles){const e=[];let r,i=this._tiles[t].tileID;for(;i.overscaledZ>0;){if(i.key in this._loadedParentTiles){r=this._loadedParentTiles[i.key];break}e.push(i.key);const t=i.scaledTo(i.overscaledZ-1);if(r=this._getLoadedTile(t),r)break;i=t;}for(const t of e)this._loadedParentTiles[t]=r;}}_addTile(t){let e=this._tiles[t.key];if(e)return e;e=this._cache.getAndRemove(t),e&&(this._setTileReloadTimer(t.key,e),e.tileID=t,this._state.initializeTileState(e,this.map?this.map.painter:null),this._cacheTimers[t.key]&&(clearTimeout(this._cacheTimers[t.key]),delete this._cacheTimers[t.key],this._setTileReloadTimer(t.key,e)));const r=Boolean(e);return r||(e=new Rc(t,this._source.tileSize*t.overscaleFactor(),this.transform.tileZoom),this._loadTile(e,this._tileLoaded.bind(this,e,t.key,e.state))),e?(e.uses++,this._tiles[t.key]=e,r||this._source.fire(new Vt("dataloading",{tile:e,coord:e.tileID,dataType:"source"})),e):null}_setTileReloadTimer(t,e){t in this._timers&&(clearTimeout(this._timers[t]),delete this._timers[t]);const r=e.getExpiryTimeout();r&&(this._timers[t]=setTimeout(()=>{this._reloadTile(t,"expired"),delete this._timers[t];},r));}_removeTile(t){const e=this._tiles[t];e&&(e.uses--,delete this._tiles[t],this._timers[t]&&(clearTimeout(this._timers[t]),delete this._timers[t]),e.uses>0||(e.hasData()&&"reloading"!==e.state?this._cache.add(e.tileID,e,e.getExpiryTimeout()):(e.aborted=!0,this._abortTile(e),this._unloadTile(e))));}clearTiles(){this._shouldReloadOnResume=!1,this._paused=!1;for(const t in this._tiles)this._removeTile(+t);this._cache.reset();}tilesIn(t,e,r){const i=[],n=this.transform;if(!n)return i;for(const s in this._tiles){const a=this._tiles[s];if(r&&a.clearQueryDebugViz(),a.holdingForFade())continue;const o=t.containsTile(a,n,e);o&&i.push(o);}return i}getVisibleCoordinates(t){const e=this.getRenderableIds(t).map(t=>this._tiles[t].tileID);for(const t of e)t.posMatrix=this.transform.calculatePosMatrix(t.toUnwrapped());return e}hasTransition(){if(this._source.hasTransition())return !0;if($h(this._source.type))for(const t in this._tiles){const e=this._tiles[t];if(void 0!==e.fadeEndTime&&e.fadeEndTime>=N.now())return !0}return !1}setFeatureState(t,e,r){this._state.updateState(t=t||"_geojsonTileLayer",e,r);}removeFeatureState(t,e,r){this._state.removeFeatureState(t=t||"_geojsonTileLayer",e,r);}getFeatureState(t,e){return this._state.getState(t=t||"_geojsonTileLayer",e)}setDependencies(t,e,r){const i=this._tiles[t];i&&i.setDependencies(e,r);}reloadTilesForDependencies(t,e){for(const r in this._tiles)this._tiles[r].hasDependency(t,e)&&this._reloadTile(+r,"reloading");this._cache.filter(r=>!r.hasDependency(t,e));}}function Oh(t,e){const r=Math.abs(2*t.wrap)-+(t.wrap<0),i=Math.abs(2*e.wrap)-+(e.wrap<0);return t.overscaledZ-e.overscaledZ||i-r||e.canonical.y-t.canonical.y||e.canonical.x-t.canonical.x}function $h(t){return "raster"===t||"image"===t||"video"===t}Uh.maxOverzooming=10,Uh.maxUnderzooming=3;class qh{constructor(t,e,r){this._dem=t,this._scale=e,this._offset=r;}static create(t,e,r){const i=r||t.findDEMTileFor(e);if(!i||!i.dem)return;const n=i.dem,s=i.tileID,a=1<=0&&i[3]>=0&&a.insert(s,i[0],i[1],i[2],i[3]);}}loadVTLayers(){return this.vtLayers||(this.vtLayers=new Jo.VectorTile(new Ml(this.rawTileData)).layers,this.sourceLayerCoder=new Pc(this.vtLayers?Object.keys(this.vtLayers).sort():["_geojsonTileLayer"])),this.vtLayers}query(t,e,r,i){this.loadVTLayers();const n=t.params||{},s=di(n.filter),a=t.tileResult,o=t.transform,l=a.bufferedTilespaceBounds,u=this.grid.query(l.min.x,l.min.y,l.max.x,l.max.y,(t,e,r,i)=>sa(a.bufferedTilespaceGeometry,t,e,r,i));u.sort(Kh);let c=null;o.elevation&&u.length>0&&(c=qh.create(o.elevation,this.tileID));const h={};let p;for(let o=0;o(f||(f=Ks(e)),r.queryIntersectsFeature(a,e,i,f,this.z,t.transform,t.pixelPosMatrix,c)));}return h}loadMatchingFeature(t,e,r,i,n,s,a,o,l,u,c){const h=this.bucketLayerIDs[e];if(s&&!function(t,e){for(let r=0;r=0)return !0;return !1}(s,h))return;const p=this.sourceLayerCoder.decode(r),d=this.vtLayers[p].feature(i);if(n.needGeometry){const t=Zs(d,!0);if(!n.filter(new gn(this.tileID.overscaledZ),t,this.tileID.canonical))return}else if(!n.filter(new gn(this.tileID.overscaledZ),d))return;const f=this.getId(d,p);for(let e=0;e{const a=e instanceof Sn?e.get(s):null;return a&&a.evaluate?a.evaluate(r,i,n):a})}function Kh(t,e){return e-t}Zi("FeatureIndex",Nh,{omit:["rawTileData","sourceLayerCoder"]});class Zh{constructor(t){const e={},r=[];for(const i in t){const n=t[i],s=e[i]={};for(const t in n){const e=n[+t];if(!e||0===e.bitmap.width||0===e.bitmap.height)continue;const i={x:0,y:0,w:e.bitmap.width+2,h:e.bitmap.height+2};r.push(i),s[t]={rect:i,metrics:e.metrics};}}const{w:i,h:n}=Wl(r),s=new Xa({width:i||1,height:n||1});for(const r in t){const i=t[r];for(const t in i){const n=i[+t];if(!n||0===n.bitmap.width||0===n.bitmap.height)continue;const a=e[r][t].rect;Xa.copy(n.bitmap,s,{x:0,y:0},{x:a.x+1,y:a.y+1},n.bitmap);}}this.image=s,this.positions=e;}}Zi("GlyphAtlas",Zh);class Xh{constructor(t){this.tileID=new Bc(t.tileID.overscaledZ,t.tileID.wrap,t.tileID.canonical.z,t.tileID.canonical.x,t.tileID.canonical.y),this.tileZoom=t.tileZoom,this.uid=t.uid,this.zoom=t.zoom,this.pixelRatio=t.pixelRatio,this.tileSize=t.tileSize,this.source=t.source,this.overscaling=this.tileID.overscaleFactor(),this.showCollisionBoxes=t.showCollisionBoxes,this.collectResourceTiming=!!t.collectResourceTiming,this.returnDependencies=!!t.returnDependencies,this.promoteId=t.promoteId,this.enableTerrain=!!t.enableTerrain,this.isSymbolTile=t.isSymbolTile;}parse(t,e,r,i,n){this.status="parsing",this.data=t,this.collisionBoxArray=new as;const s=new Pc(Object.keys(t.layers).sort()),a=new Nh(this.tileID,this.promoteId);a.bucketLayerIDs=[];const o={},l={featureIndex:a,iconDependencies:{},patternDependencies:{},glyphDependencies:{},availableImages:r},u=e.familiesBySource[this.source];for(const e in u){const i=t.layers[e];if(!i)continue;let n=!1,c=!1;for(const t of u[e])"symbol"===t[0].type?n=!0:c=!0;if(!0===this.isSymbolTile&&!n)continue;if(!1===this.isSymbolTile&&!c)continue;1===i.version&&E(`Vector tile source "${this.source}" layer "${e}" `+"does not use vector tile spec v2 and therefore may have some rendering errors.");const h=s.encode(e),p=[];for(let t=0;t=e.maxzoom||"none"!==e.visibility&&(Gh(t,this.zoom,r),(o[e.id]=e.createBucket({index:a.bucketLayerIDs.length,layers:t,zoom:this.zoom,pixelRatio:this.pixelRatio,overscaling:this.overscaling,collisionBoxArray:this.collisionBoxArray,sourceLayerIndex:h,sourceID:this.source,enableTerrain:this.enableTerrain})).populate(p,l,this.tileID.canonical),a.bucketLayerIDs.push(t.map(t=>t.id)));}}let c,h,p,d;const f={type:"maybePrepare",isSymbolTile:this.isSymbolTile,zoom:this.zoom},y=S(l.glyphDependencies,t=>Object.keys(t).map(Number));Object.keys(y).length?i.send("getGlyphs",{uid:this.uid,stacks:y},(t,e)=>{c||(c=t,h=e,v.call(this));},void 0,void 0,f):h={};const m=Object.keys(l.iconDependencies);m.length?i.send("getImages",{icons:m,source:this.source,tileID:this.tileID,type:"icons"},(t,e)=>{c||(c=t,p=e,v.call(this));},void 0,void 0,f):p={};const x=Object.keys(l.patternDependencies);function v(){if(c)return n(c);if(h&&p&&d){const t=new Zh(h),e=new tu(p,d);for(const i in o){const n=o[i];n instanceof Yu?(Gh(n.layers,this.zoom,r),Fu(n,h,t.positions,p,e.iconPositions,this.showCollisionBoxes,this.tileID.canonical,this.tileZoom)):n.hasPattern&&(n instanceof pl||n instanceof Fo||n instanceof el)&&(Gh(n.layers,this.zoom,r),n.addFeatures(l,this.tileID.canonical,e.patternPositions));}this.status="done",n(null,{buckets:g(o).filter(t=>!t.isEmpty()),featureIndex:a,collisionBoxArray:this.collisionBoxArray,glyphAtlasImage:t.image,imageAtlas:e,glyphMap:this.returnDependencies?h:null,iconMap:this.returnDependencies?p:null,glyphPositions:this.returnDependencies?t.positions:null});}}x.length?i.send("getImages",{icons:x,source:this.source,tileID:this.tileID,type:"patterns"},(t,e)=>{c||(c=t,d=e,v.call(this));},void 0,void 0,f):d={},v.call(this);}}function Gh(t,e,r){const i=new gn(e);for(const e of t)e.recalculate(i,r);}class Hh{constructor(t){this.entries={},this.scheduler=t;}request(t,e,r,i){const n=this.entries[t]=this.entries[t]||{callbacks:[]};if(n.result){const[t,r]=n.result;return this.scheduler?this.scheduler.add(()=>{i(t,r);},e):i(t,r),()=>{}}return n.callbacks.push(i),n.cancel||(n.cancel=r((r,i)=>{n.result=[r,i];for(const t of n.callbacks)this.scheduler?this.scheduler.add(()=>{t(r,i);},e):t(r,i);setTimeout(()=>delete this.entries[t],3e3);})),()=>{n.result||(n.callbacks=n.callbacks.filter(t=>t!==i),n.callbacks.length||(n.cancel(),delete this.entries[t]));}}}function Jh(t,e,r){const i=JSON.stringify(t.request);return t.data&&(this.deduped.entries[i]={result:[null,t.data]}),this.deduped.request(i,{type:"parseTile",isSymbolTile:t.isSymbolTile,zoom:t.tileZoom},e=>{const i=St(t.request,(t,i,n,s)=>{t?e(t):i&&e(null,{vectorTile:r?void 0:new Jo.VectorTile(new Ml(i)),rawData:i,cacheControl:n,expires:s});});return ()=>{i.cancel(),e();}},e)}t.AUTH_ERR_MSG="NO_ACCESS_TOKEN",t.Aabb=La,t.Actor=class{constructor(t,e,r){this.target=t,this.parent=e,this.mapId=r,this.callbacks={},this.cancelCallbacks={},A(["receive"],this),this.target.addEventListener("message",this.receive,!1),this.globalScope=B()?t:a,this.scheduler=new gc;}send(t,e,r,i,n=!1,s){const a=Math.round(1e18*Math.random()).toString(36).substring(0,10);r&&(r.metadata=s,this.callbacks[a]=r);const o=V(this.globalScope)?void 0:[];return this.target.postMessage({id:a,type:t,hasCallback:!!r,targetMapId:i,mustQueue:n,sourceMapId:this.mapId,data:Hi(e,o)},o),{cancel:()=>{r&&delete this.callbacks[a],this.target.postMessage({id:a,type:"",targetMapId:i,sourceMapId:this.mapId});}}}receive(t){const e=t.data,r=e.id;if(r&&(!e.targetMapId||this.mapId===e.targetMapId))if(""===e.type){const t=this.cancelCallbacks[r];delete this.cancelCallbacks[r],t&&t.cancel();}else if(B()||e.mustQueue){const t=this.callbacks[r];this.cancelCallbacks[r]=this.scheduler.add(()=>this.processTask(r,e),t&&t.metadata||{type:"message"});}else this.processTask(r,e);}processTask(t,e){if(""===e.type){const r=this.callbacks[t];delete this.callbacks[t],r&&(e.error?r(Ji(e.error)):r(null,Ji(e.data)));}else {const r=V(this.globalScope)?void 0:[],i=e.hasCallback?(e,i)=>{delete this.cancelCallbacks[t],this.target.postMessage({id:t,type:"",sourceMapId:this.mapId,error:e?Hi(e):null,data:Hi(i,r)},r);}:t=>{},n=Ji(e.data);if(this.parent[e.type])this.parent[e.type](e.sourceMapId,n,i);else if(this.parent.getWorkerSource){const t=e.type.split(".");this.parent.getWorkerSource(e.sourceMapId,t[0],n.source)[t[1]](n,i);}else i(new Error(`Could not find function ${e.type}`));}}remove(){this.scheduler.remove(),this.target.removeEventListener("message",this.receive,!1);}},t.AlphaImage=Xa,t.CanonicalTileID=Cc,t.Color=ue,t.ColorMode=Rh,t.Context=class{constructor(t){this.gl=t,this.extVertexArrayObject=this.gl.getExtension("OES_vertex_array_object"),this.clearColor=new th(this),this.clearDepth=new eh(this),this.clearStencil=new rh(this),this.colorMask=new ih(this),this.depthMask=new nh(this),this.stencilMask=new sh(this),this.stencilFunc=new ah(this),this.stencilOp=new oh(this),this.stencilTest=new lh(this),this.depthRange=new uh(this),this.depthTest=new ch(this),this.depthFunc=new hh(this),this.blend=new ph(this),this.blendFunc=new dh(this),this.blendColor=new fh(this),this.blendEquation=new yh(this),this.cullFace=new mh(this),this.cullFaceSide=new gh(this),this.frontFace=new xh(this),this.program=new vh(this),this.activeTexture=new bh(this),this.viewport=new wh(this),this.bindFramebuffer=new _h(this),this.bindRenderbuffer=new Ah(this),this.bindTexture=new kh(this),this.bindVertexBuffer=new Sh(this),this.bindElementBuffer=new Ih(this),this.bindVertexArrayOES=this.extVertexArrayObject&&new Th(this),this.pixelStoreUnpack=new zh(this),this.pixelStoreUnpackPremultiplyAlpha=new Eh(this),this.pixelStoreUnpackFlipY=new Ch(this),this.extTextureFilterAnisotropic=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic"),this.extTextureFilterAnisotropic&&(this.extTextureFilterAnisotropicMax=t.getParameter(this.extTextureFilterAnisotropic.MAX_TEXTURE_MAX_ANISOTROPY_EXT)),this.extTextureFilterAnisotropicForceOff=!1,this.extTextureHalfFloat=t.getExtension("OES_texture_half_float"),this.extTextureHalfFloat&&(t.getExtension("OES_texture_half_float_linear"),this.extRenderToTextureHalfFloat=t.getExtension("EXT_color_buffer_half_float")),this.extTimerQuery=t.getExtension("EXT_disjoint_timer_query"),this.maxTextureSize=t.getParameter(t.MAX_TEXTURE_SIZE);}setDefault(){this.unbindVAO(),this.clearColor.setDefault(),this.clearDepth.setDefault(),this.clearStencil.setDefault(),this.colorMask.setDefault(),this.depthMask.setDefault(),this.stencilMask.setDefault(),this.stencilFunc.setDefault(),this.stencilOp.setDefault(),this.stencilTest.setDefault(),this.depthRange.setDefault(),this.depthTest.setDefault(),this.depthFunc.setDefault(),this.blend.setDefault(),this.blendFunc.setDefault(),this.blendColor.setDefault(),this.blendEquation.setDefault(),this.cullFace.setDefault(),this.cullFaceSide.setDefault(),this.frontFace.setDefault(),this.program.setDefault(),this.activeTexture.setDefault(),this.bindFramebuffer.setDefault(),this.pixelStoreUnpack.setDefault(),this.pixelStoreUnpackPremultiplyAlpha.setDefault(),this.pixelStoreUnpackFlipY.setDefault();}setDirty(){this.clearColor.dirty=!0,this.clearDepth.dirty=!0,this.clearStencil.dirty=!0,this.colorMask.dirty=!0,this.depthMask.dirty=!0,this.stencilMask.dirty=!0,this.stencilFunc.dirty=!0,this.stencilOp.dirty=!0,this.stencilTest.dirty=!0,this.depthRange.dirty=!0,this.depthTest.dirty=!0,this.depthFunc.dirty=!0,this.blend.dirty=!0,this.blendFunc.dirty=!0,this.blendColor.dirty=!0,this.blendEquation.dirty=!0,this.cullFace.dirty=!0,this.cullFaceSide.dirty=!0,this.frontFace.dirty=!0,this.program.dirty=!0,this.activeTexture.dirty=!0,this.viewport.dirty=!0,this.bindFramebuffer.dirty=!0,this.bindRenderbuffer.dirty=!0,this.bindTexture.dirty=!0,this.bindVertexBuffer.dirty=!0,this.bindElementBuffer.dirty=!0,this.extVertexArrayObject&&(this.bindVertexArrayOES.dirty=!0),this.pixelStoreUnpack.dirty=!0,this.pixelStoreUnpackPremultiplyAlpha.dirty=!0,this.pixelStoreUnpackFlipY.dirty=!0;}createIndexBuffer(t,e){return new Jc(this,t,e)}createVertexBuffer(t,e,r){return new Wc(this,t,e,r)}createRenderbuffer(t,e,r){const i=this.gl,n=i.createRenderbuffer();return this.bindRenderbuffer.set(n),i.renderbufferStorage(i.RENDERBUFFER,t,e,r),this.bindRenderbuffer.set(null),n}createFramebuffer(t,e,r){return new Ph(this,t,e,r)}clear({color:t,depth:e,stencil:r}){const i=this.gl;let n=0;t&&(n|=i.COLOR_BUFFER_BIT,this.clearColor.set(t),this.colorMask.set([!0,!0,!0,!0])),void 0!==e&&(n|=i.DEPTH_BUFFER_BIT,this.depthRange.set([0,1]),this.clearDepth.set(e),this.depthMask.set(!0)),void 0!==r&&(n|=i.STENCIL_BUFFER_BIT,this.clearStencil.set(r),this.stencilMask.set(255)),i.clear(n);}setCullFace(t){!1===t.enable?this.cullFace.set(!1):(this.cullFace.set(!0),this.cullFaceSide.set(t.mode),this.frontFace.set(t.frontFace));}setDepthMode(t){t.func!==this.gl.ALWAYS||t.mask?(this.depthTest.set(!0),this.depthFunc.set(t.func),this.depthMask.set(t.mask),this.depthRange.set(t.range)):this.depthTest.set(!1);}setStencilMode(t){t.test.func!==this.gl.ALWAYS||t.mask?(this.stencilTest.set(!0),this.stencilMask.set(t.mask),this.stencilOp.set([t.fail,t.depthFail,t.pass]),this.stencilFunc.set({func:t.test.func,ref:t.ref,mask:t.test.mask})):this.stencilTest.set(!1);}setColorMode(t){o(t.blendFunction,Rh.Replace)?this.blend.set(!1):(this.blend.set(!0),this.blendFunc.set(t.blendFunction),this.blendColor.set(t.blendColor)),this.colorMask.set(t.mask);}unbindVAO(){this.extVertexArrayObject&&this.bindVertexArrayOES.set(null);}},t.CullFaceMode=Lh,t.DEMData=Gc,t.DataConstantProperty=In,t.DedupedRequest=Hh,t.DepthMode=Vh,t.DepthStencilAttachment=class extends Dh{attachment(){return this.gl.DEPTH_STENCIL_ATTACHMENT}},t.EXTENT=8192,t.Elevation=class{getAtPoint(t,e=0){const r=this._source();if(!r)return e;if(t.y<0||t.y>1)return e;const i=r.getSource().maxzoom,n=1<{t[2]=this.exaggeration()*n.getElevationAt(t[0],t[1],r);}),!0)}getMinMaxForTile(t){const e=this.findDEMTileFor(t);if(!e||!e.dem)return null;const r=e.dem.tree,i=e.tileID,n=1<this._skuTokenExpiresAt}transformRequest(t,e){return this._transformRequestFn&&this._transformRequestFn(t,e)||{url:t}}normalizeStyleURL(t,e){if(!W(t))return t;const r=rt(t);return r.path=`/styles/v1${r.path}`,this._makeAPIURL(r,this._customAccessToken||e)}normalizeGlyphsURL(t,e){if(!W(t))return t;const r=rt(t);return r.path=`/fonts/v1${r.path}`,this._makeAPIURL(r,this._customAccessToken||e)}normalizeSourceURL(t,e){if(!W(t))return t;const r=rt(t);return r.path=`/v4/${r.authority}.json`,r.params.push("secure"),this._makeAPIURL(r,this._customAccessToken||e)}normalizeSpriteURL(t,e,r,i){const n=rt(t);return W(t)?(n.path=`/styles/v1${n.path}/sprite${e}${r}`,this._makeAPIURL(n,this._customAccessToken||i)):(n.path+=`${e}${r}`,it(n))}normalizeTileURL(t,e,r){if(this._isSkuTokenExpired()&&this._createSkuToken(),t&&!W(t))return t;const i=rt(t);i.path=i.path.replace(/(\.(png|jpg)\d*)(?=$)/,`${e||r&&"raster"!==i.authority&&512===r?"@2x":""}${K.supported?".webp":"$1"}`),"raster"===i.authority?i.path=`/${j.RASTER_URL_PREFIX}${i.path}`:(i.path=i.path.replace(/^.+\/v4\//,"/"),i.path=`/${j.TILE_URL_VERSION}${i.path}`);const n=this._customAccessToken||function(t){for(const e of t){const t=e.match(/^access_token=(.*)$/);if(t)return t[1]}return null}(i.params)||j.ACCESS_TOKEN;return j.REQUIRE_ACCESS_TOKEN&&n&&this._skuToken&&i.params.push(`sku=${this._skuToken}`),this._makeAPIURL(i,n)}canonicalizeTileURL(t,e){const r=rt(t);if(!r.path.match(/^(\/v4\/|\/raster\/v1\/)/)||!r.path.match(/\.[\w]+$/))return t;let i="mapbox://";r.path.match(/^\/raster\/v1\//)?i+=`raster/${r.path.replace(`/${j.RASTER_URL_PREFIX}/`,"")}`:i+=`tiles/${r.path.replace(`/${j.TILE_URL_VERSION}/`,"")}`;let n=r.params;return e&&(n=n.filter(t=>!t.match(/^access_token=/))),n.length&&(i+=`?${n.join("&")}`),i}canonicalizeTileset(t,e){const r=!!e&&W(e),i=[];for(const e of t.tiles||[])tt(e)?i.push(this.canonicalizeTileURL(e,r)):i.push(e);return i}_makeAPIURL(t,e){const r="See https://www.mapbox.com/api-documentation/#access-tokens-and-token-scopes",i=rt(j.API_URL);if(t.protocol=i.protocol,t.authority=i.authority,"http"===t.protocol){const e=t.params.indexOf("secure");e>=0&&t.params.splice(e,1);}if("/"!==i.path&&(t.path=`${i.path}${t.path}`),!j.REQUIRE_ACCESS_TOKEN)return it(t);if(!(e=e||j.ACCESS_TOKEN))throw new Error(`An API access token is required to use Mapbox GL. ${r}`);if("s"===e[0])throw new Error(`Use a public access token (pk.*) with Mapbox GL, not a secret access token (sk.*). ${r}`);return t.params=t.params.filter(t=>-1===t.indexOf("access_token")),t.params.push(`access_token=${e}`),it(t)}},t.RequestPerformance=mc,t.ResourceType=wt,t.SegmentVector=qs,t.SourceCache=Uh,t.StencilMode=Fh,t.StructArrayLayout1ui2=is,t.StructArrayLayout2f1f2i16=Gn,t.StructArrayLayout2i4=Ln,t.StructArrayLayout3f12=jn,t.StructArrayLayout3ui6=Jn,t.StructArrayLayout4i8=Un,t.Texture=dc,t.Tile=Rc,t.Transitionable=bn,t.Uniform1f=ks,t.Uniform1i=class extends As{constructor(t,e){super(t,e),this.current=0;}set(t){this.current!==t&&(this.current=t,this.gl.uniform1i(this.location,t));}},t.Uniform2f=class extends As{constructor(t,e){super(t,e),this.current=[0,0];}set(t){t[0]===this.current[0]&&t[1]===this.current[1]||(this.current=t,this.gl.uniform2f(this.location,t[0],t[1]));}},t.Uniform3f=class extends As{constructor(t,e){super(t,e),this.current=[0,0,0];}set(t){t[0]===this.current[0]&&t[1]===this.current[1]&&t[2]===this.current[2]||(this.current=t,this.gl.uniform3f(this.location,t[0],t[1],t[2]));}},t.Uniform4f=Ss,t.UniformColor=Is,t.UniformMatrix3f=class extends As{constructor(t,e){super(t,e),this.current=zs;}set(t){for(let e=0;e<9;e++)if(t[e]!==this.current[e]){this.current=t,this.gl.uniformMatrix3fv(this.location,!1,t);break}}},t.UniformMatrix4f=class extends As{constructor(t,e){super(t,e),this.current=Ts;}set(t){if(t[12]!==this.current[12]||t[0]!==this.current[0])return this.current=t,void this.gl.uniformMatrix4fv(this.location,!1,t);for(let e=1;e<16;e++)if(t[e]!==this.current[e]){this.current=t,this.gl.uniformMatrix4fv(this.location,!1,t);break}}},t.UnwrappedTileID=Mc,t.ValidationError=Ut,t.VectorTileWorkerSource=class{constructor(t,e,r,i){this.actor=t,this.layerIndex=e,this.availableImages=r,this.loadVectorData=i||Jh,this.loading={},this.loaded={},this.deduped=new Hh(t.scheduler);}loadTile(t,e){const r=t.uid,i=!!(t&&t.request&&t.request.collectResourceTiming)&&new mc(t.request),n=this.loading[r]=new Xh(t);n.abort=this.loadVectorData(t,(t,s)=>{const a=!this.loading[r];if(delete this.loading[r],a||t||!s)return n.status="done",a||(this.loaded[r]=n),e(t);const o=s.rawData,l={};s.expires&&(l.expires=s.expires),s.cacheControl&&(l.cacheControl=s.cacheControl);const u={};if(i){const t=i.finish();t&&(u.resourceTiming=JSON.parse(JSON.stringify(t)));}n.vectorTile=s.vectorTile||new Jo.VectorTile(new Ml(o)),n.parse(n.vectorTile,this.layerIndex,this.availableImages,this.actor,(t,r)=>{if(t||!r)return e(t);e(null,x({rawTileData:o.slice(0)},r,l,u));}),this.loaded=this.loaded||{},this.loaded[r]=n;});}reloadTile(t,e){const r=this.loaded,i=t.uid,n=this;if(r&&r[i]){const s=r[i];s.showCollisionBoxes=t.showCollisionBoxes,s.enableTerrain=!!t.enableTerrain;const a=(t,r)=>{const i=s.reloadCallback;i&&(delete s.reloadCallback,s.parse(s.vectorTile,n.layerIndex,this.availableImages,n.actor,i)),e(t,r);};"parsing"===s.status?s.reloadCallback=a:"done"===s.status&&(s.vectorTile?s.parse(s.vectorTile,this.layerIndex,this.availableImages,this.actor,a):a());}}abortTile(t,e){const r=t.uid,i=this.loading[r];i&&(i.abort&&i.abort(),delete this.loading[r]),e();}removeTile(t,e){const r=this.loaded,i=t.uid;r&&r[i]&&delete r[i],e();}},t.WritingMode=eu,t.ZoomHistory=Yi,t.add=_a,t.addDynamicAttributes=Xu,t.altitudeFromMercatorZ=Tc,t.asyncAll=function(t,e,r){if(!t.length)return r(null,[]);let i=t.length;const n=new Array(t.length);let s=null;t.forEach((t,a)=>{e(t,(t,e)=>{t&&(s=t),n[a]=e,0==--i&&r(s,n);});});},t.bezier=d,t.bindAll=A,t.browser=N,t.bufferConvexPolygon=function(t,e){const r=[];for(let i=0;iyt&&(t.getActor().send("enforceCacheSizeLimit",ft),vt=0);},t.clamp=y,t.clearTileCache=function(t){const e=a.caches.delete("mapbox-tiles");t&&e.catch(t).then(()=>t());},t.clipLine=Au,t.clone=function(t){var e=new da(16);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e[9]=t[9],e[10]=t[10],e[11]=t[11],e[12]=t[12],e[13]=t[13],e[14]=t[14],e[15]=t[15],e},t.clone$1=T,t.collisionCircleLayout=_l,t.config=j,t.conjugate=function(t,e){return t[0]=-e[0],t[1]=-e[1],t[2]=-e[2],t[3]=e[3],t},t.create=function(){var t=new da(16);return da!=Float32Array&&(t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[11]=0,t[12]=0,t[13]=0,t[14]=0),t[0]=1,t[5]=1,t[10]=1,t[15]=1,t},t.create$1=fa,t.create$2=function(){var t=new da(4);return da!=Float32Array&&(t[1]=0,t[2]=0),t[0]=1,t[3]=1,t},t.createCommonjsModule=e,t.createExpression=ti,t.createLayout=Fn,t.createStyleLayer=function(t){return "custom"===t.type?new nc(t):new oc[t.type](t)},t.cross=za,t.deepEqual=o,t.degToRad=h,t.div=function(t,e,r){return t[0]=e[0]/r[0],t[1]=e[1]/r[1],t[2]=e[2]/r[2],t},t.dot=Ta,t.ease=f,t.easeCubicInOut=p,t.emitValidationErrors=Oi,t.endsWith=k,t.enforceCacheSizeLimit=function(t){mt(),pt&&pt.then(e=>{e.keys().then(r=>{for(let i=0;i{}}},t.identity=ya,t.identity$1=Va,t.invert=function(t,e){var r=e[0],i=e[1],n=e[2],s=e[3],a=e[4],o=e[5],l=e[6],u=e[7],c=e[8],h=e[9],p=e[10],d=e[11],f=e[12],y=e[13],m=e[14],g=e[15],x=r*o-i*a,v=r*l-n*a,b=r*u-s*a,w=i*l-n*o,_=i*u-s*o,A=n*u-s*l,k=c*y-h*f,S=c*m-p*f,I=c*g-d*f,T=h*m-p*y,z=h*g-d*y,E=p*g-d*m,C=x*E-v*z+b*T+w*I-_*S+A*k;return C?(t[0]=(o*E-l*z+u*T)*(C=1/C),t[1]=(n*z-i*E-s*T)*C,t[2]=(y*A-m*_+g*w)*C,t[3]=(p*_-h*A-d*w)*C,t[4]=(l*I-a*E-u*S)*C,t[5]=(r*E-n*I+s*S)*C,t[6]=(m*b-f*A-g*v)*C,t[7]=(c*A-p*b+d*v)*C,t[8]=(a*z-o*I+u*k)*C,t[9]=(i*I-r*z-s*k)*C,t[10]=(f*_-y*b+g*x)*C,t[11]=(h*b-c*_-d*x)*C,t[12]=(o*S-a*T-l*k)*C,t[13]=(r*T-i*S+n*k)*C,t[14]=(y*v-f*w-m*x)*C,t[15]=(c*w-h*v+p*x)*C,t):null},t.isChar=Wi,t.isMapboxURL=W,t.latFromMercatorY=Ic,t.len=Ba,t.length=ba,t.length$1=function(t){return Math.hypot(t[0],t[1],t[2],t[3])},t.loadVectorTile=Jh,t.makeRequest=kt,t.mercatorXfromLng=Ac,t.mercatorYfromLat=kc,t.mercatorZfromAltitude=Sc,t.mul=ga,t.mul$1=function(t,e,r){return t[0]=e[0]*r[0],t[1]=e[1]*r[1],t[2]=e[2]*r[2],t},t.multiply=ma,t.mvt=Jo,t.nextPowerOfTwo=function(t){return t<=1?1:Math.pow(2,Math.ceil(Math.log(t)/Math.LN2))},t.normalize=Ia,t.normalize$1=function(t,e){var r=e[0],i=e[1],n=e[2],s=e[3],a=r*r+i*i+n*n+s*s;return a>0&&(a=1/Math.sqrt(a)),t[0]=r*a,t[1]=i*a,t[2]=n*a,t[3]=s*a,t},t.number=Qe,t.offscreenCanvasSupported=bt,t.ortho=function(t,e,r,i,n,s,a){var o=1/(e-r),l=1/(i-n),u=1/(s-a);return t[0]=-2*o,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=-2*l,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=2*u,t[11]=0,t[12]=(e+r)*o,t[13]=(n+i)*l,t[14]=(a+s)*u,t[15]=1,t},t.parseGlyphPBF=function(t){return new Ml(t).readFields(Hl,[])},t.pbf=Ml,t.perspective=function(t,e,r,i,n){var s,a=1/Math.tan(e/2);return t[0]=a/r,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=a,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[11]=-1,t[12]=0,t[13]=0,t[15]=0,null!=n&&n!==1/0?(t[10]=(n+i)*(s=1/(i-n)),t[14]=2*n*i*s):(t[10]=-1,t[14]=-2*i),t},t.pick=function(t,e){const r={};for(let i=0;ithis._layers[e.id]),r=t[0];if("none"===r.visibility)continue;const n=r.source||"";let o=this.familiesBySource[n];o||(o=this.familiesBySource[n]={});const i=r.sourceLayer||"_geojsonTileLayer";let s=o[i];s||(s=o[i]=[]),s.push(t);}}}const{ImageBitmap:o}=e.window;class i{loadTile(t,r){const{uid:n,encoding:i,rawImageData:s,padding:a,buildQuadTree:l}=t,u=o&&s instanceof o?this.getImageData(s,a):s;r(null,new e.DEMData(n,u,i,a<1,l));}getImageData(t,r){this.offscreenCanvas&&this.offscreenCanvasContext||(this.offscreenCanvas=new OffscreenCanvas(t.width,t.height),this.offscreenCanvasContext=this.offscreenCanvas.getContext("2d")),this.offscreenCanvas.width=t.width,this.offscreenCanvas.height=t.height,this.offscreenCanvasContext.drawImage(t,0,0,t.width,t.height);const n=this.offscreenCanvasContext.getImageData(-r,-r,t.width+2*r,t.height+2*r);return this.offscreenCanvasContext.clearRect(0,0,this.offscreenCanvas.width,this.offscreenCanvas.height),new e.RGBAImage({width:n.width,height:n.height},n.data)}}function s(e,t){if(0!==e.length){a(e[0],t);for(var r=1;r=0!=!!t&&e.reverse();}const l=e.vectorTile.VectorTileFeature.prototype.toGeoJSON;class u{constructor(t){this._feature=t,this.extent=e.EXTENT,this.type=t.type,this.properties=t.tags,"id"in t&&!isNaN(t.id)&&(this.id=parseInt(t.id,10));}loadGeometry(){if(1===this._feature.type){const t=[];for(const r of this._feature.geometry)t.push([new e.Point$1(r[0],r[1])]);return t}{const t=[];for(const r of this._feature.geometry){const n=[];for(const t of r)n.push(new e.Point$1(t[0],t[1]));t.push(n);}return t}}toGeoJSON(e,t,r){return l.call(this,e,t,r)}}class h{constructor(t){this.layers={_geojsonTileLayer:this},this.name="_geojsonTileLayer",this.extent=e.EXTENT,this.length=t.length,this._features=t;}feature(e){return new u(this._features[e])}}var c=e.vectorTile.VectorTileFeature,f=p;function p(e,t){this.options=t||{},this.features=e,this.length=e.length;}function g(e,t){this.id="number"==typeof e.id?e.id:void 0,this.type=e.type,this.rawGeometry=1===e.type?[e.geometry]:e.geometry,this.properties=e.tags,this.extent=t||4096;}p.prototype.feature=function(e){return new g(this.features[e],this.options.extent)},g.prototype.loadGeometry=function(){var t=this.rawGeometry;this.geometry=[];for(var r=0;r>31}function _(e,t){for(var r=e.loadGeometry(),n=e.type,o=0,i=0,s=r.length,a=0;ae[0],C=e=>e[1];class L{constructor(e,t=T,r=C,n=64,o=Float64Array){this.nodeSize=n,this.points=e;const i=e.length<65536?Uint16Array:Uint32Array,s=this.ids=new i(e.length),a=this.coords=new o(2*e.length);for(let n=0;n>1;!function e(t,r,n,o,i,s){for(;i>o;){if(i-o>600){const a=i-o+1,l=n-o+1,u=Math.log(a),h=.5*Math.exp(2*u/3),c=.5*Math.sqrt(u*h*(a-h)/a)*(l-a/2<0?-1:1);e(t,r,n,Math.max(o,Math.floor(n-l*h/a+c)),Math.min(i,Math.floor(n+(a-l)*h/a+c)),s);}const a=r[2*n+s];let l=o,u=i;for(b(t,r,o,n),r[2*i+s]>a&&b(t,r,o,i);la;)u--;}r[2*o+s]===a?b(t,r,o,u):(u++,b(t,r,u,i)),u<=n&&(o=u+1),n<=u&&(i=u-1);}}(t,r,a,o,i,s%2),e(t,r,n,o,a-1,s+1),e(t,r,n,a+1,i,s+1);}(s,a,n,0,s.length-1,0);}range(e,t,r,n){return function(e,t,r,n,o,i,s){const a=[0,e.length-1,0],l=[];let u,h;for(;a.length;){const c=a.pop(),f=a.pop(),p=a.pop();if(f-p<=s){for(let s=p;s<=f;s++)u=t[2*s],h=t[2*s+1],u>=r&&u<=o&&h>=n&&h<=i&&l.push(e[s]);continue}const g=Math.floor((p+f)/2);u=t[2*g],h=t[2*g+1],u>=r&&u<=o&&h>=n&&h<=i&&l.push(e[g]);const d=(c+1)%2;(0===c?r<=u:n<=h)&&(a.push(p),a.push(g-1),a.push(d)),(0===c?o>=u:i>=h)&&(a.push(g+1),a.push(f),a.push(d));}return l}(this.ids,this.coords,e,t,r,n,this.nodeSize)}within(e,t,r){return function(e,t,r,n,o,i){const s=[0,e.length-1,0],a=[],l=o*o;for(;s.length;){const u=s.pop(),h=s.pop(),c=s.pop();if(h-c<=i){for(let o=c;o<=h;o++)I(t[2*o],t[2*o+1],r,n)<=l&&a.push(e[o]);continue}const f=Math.floor((c+h)/2),p=t[2*f],g=t[2*f+1];I(p,g,r,n)<=l&&a.push(e[f]);const d=(u+1)%2;(0===u?r-o<=p:n-o<=g)&&(s.push(c),s.push(f-1),s.push(d)),(0===u?r+o>=p:n+o>=g)&&(s.push(f+1),s.push(h),s.push(d));}return a}(this.ids,this.coords,e,t,r,this.nodeSize)}}const O={minZoom:0,maxZoom:16,minPoints:2,radius:40,extent:512,nodeSize:64,log:!1,generateId:!1,reduce:null,map:e=>e};class z{constructor(e){this.options=Y(Object.create(O),e),this.trees=new Array(this.options.maxZoom+1);}load(e){const{log:t,minZoom:r,maxZoom:n,nodeSize:o}=this.options;t&&console.time("total time");const i=`prepare ${e.length} points`;t&&console.time(i),this.points=e;let s=[];for(let t=0;t=r;e--){const r=+Date.now();s=this._cluster(s,e),this.trees[e]=new L(s,W,X,o,Float32Array),t&&console.log("z%d: %d clusters in %dms",e,s.length,+Date.now()-r);}return t&&console.timeEnd("total time"),this}getClusters(e,t){let r=((e[0]+180)%360+360)%360-180;const n=Math.max(-90,Math.min(90,e[1]));let o=180===e[2]?180:((e[2]+180)%360+360)%360-180;const i=Math.max(-90,Math.min(90,e[3]));if(e[2]-e[0]>=360)r=-180,o=180;else if(r>o){const e=this.getClusters([r,n,180,i],t),s=this.getClusters([-180,n,o,i],t);return e.concat(s)}const s=this.trees[this._limitZoom(t)],a=s.range(J(r),D(i),J(o),D(n)),l=[];for(const e of a){const t=s.points[e];l.push(t.numPoints?F(t):this.points[t.index]);}return l}getChildren(e){const t=this._getOriginId(e),r=this._getOriginZoom(e),n="No cluster with the specified id.",o=this.trees[r];if(!o)throw new Error(n);const i=o.points[t];if(!i)throw new Error(n);const s=this.options.radius/(this.options.extent*Math.pow(2,r-1)),a=o.within(i.x,i.y,s),l=[];for(const t of a){const r=o.points[t];r.parentId===e&&l.push(r.numPoints?F(r):this.points[r.index]);}if(0===l.length)throw new Error(n);return l}getLeaves(e,t,r){const n=[];return this._appendLeaves(n,e,t=t||10,r=r||0,0),n}getTile(e,t,r){const n=this.trees[this._limitZoom(e)],o=Math.pow(2,e),{extent:i,radius:s}=this.options,a=s/i,l=(r-a)/o,u=(r+1+a)/o,h={features:[]};return this._addTileFeatures(n.range((t-a)/o,l,(t+1+a)/o,u),n.points,t,r,o,h),0===t&&this._addTileFeatures(n.range(1-a/o,l,1,u),n.points,o,r,o,h),t===o-1&&this._addTileFeatures(n.range(0,l,a/o,u),n.points,-1,r,o,h),h.features.length?h:null}getClusterExpansionZoom(e){let t=this._getOriginZoom(e)-1;for(;t<=this.options.maxZoom;){const r=this.getChildren(e);if(t++,1!==r.length)break;e=r[0].properties.cluster_id;}return t}_appendLeaves(e,t,r,n,o){const i=this.getChildren(t);for(const t of i){const i=t.properties;if(i&&i.cluster?o+i.point_count<=n?o+=i.point_count:o=this._appendLeaves(e,i.cluster_id,r,n,o):ot&&(c+=r.numPoints||1);}if(c>=s){let e=o.x*h,s=o.y*h,a=i&&h>1?this._map(o,!0):null;const f=(n<<5)+(t+1)+this.points.length;for(const r of u){const n=l.points[r];if(n.zoom<=t)continue;n.zoom=t;const u=n.numPoints||1;e+=n.x*u,s+=n.y*u,n.parentId=f,i&&(a||(a=this._map(o,!0)),i(a,this._map(n)));}o.parentId=f,r.push(E(e/c,s/c,f,c,a));}else if(r.push(o),c>1)for(const e of u){const n=l.points[e];n.zoom<=t||(n.zoom=t,r.push(n));}}return r}_getOriginId(e){return e-this.points.length>>5}_getOriginZoom(e){return (e-this.points.length)%32}_map(e,t){if(e.numPoints)return t?Y({},e.properties):e.properties;const r=this.points[e.index].properties,n=this.options.map(r);return t&&n===r?Y({},n):n}}function E(e,t,r,n,o){return {x:e,y:t,zoom:1/0,id:r,parentId:-1,numPoints:n,properties:o}}function N(e,t){const[r,n]=e.geometry.coordinates;return {x:J(r),y:D(n),zoom:1/0,index:t,parentId:-1}}function F(e){return {type:"Feature",id:e.id,properties:Z(e),geometry:{type:"Point",coordinates:[(t=e.x,360*(t-.5)),G(e.y)]}};var t;}function Z(e){const t=e.numPoints,r=t>=1e4?`${Math.round(t/1e3)}k`:t>=1e3?`${Math.round(t/100)/10}k`:t;return Y(Y({},e.properties),{cluster:!0,cluster_id:e.id,point_count:t,point_count_abbreviated:r})}function J(e){return e/360+.5}function D(e){const t=Math.sin(e*Math.PI/180),r=.5-.25*Math.log((1+t)/(1-t))/Math.PI;return r<0?0:r>1?1:r}function G(e){const t=(180-360*e)*Math.PI/180;return 360*Math.atan(Math.exp(t))/Math.PI-90}function Y(e,t){for(const r in t)e[r]=t[r];return e}function W(e){return e.x}function X(e){return e.y}function V(e,t,r,n,o,i){var s=o-r,a=i-n;if(0!==s||0!==a){var l=((e-r)*s+(t-n)*a)/(s*s+a*a);l>1?(r=o,n=i):l>0&&(r+=s*l,n+=a*l);}return (s=e-r)*s+(a=t-n)*a}function $(e,t,r,n){var o={id:void 0===e?null:e,type:t,geometry:r,tags:n,minX:1/0,minY:1/0,maxX:-1/0,maxY:-1/0};return function(e){var t=e.geometry,r=e.type;if("Point"===r||"MultiPoint"===r||"LineString"===r)j(e,t);else if("Polygon"===r||"MultiLineString"===r)for(var n=0;n0&&(s+=n?(o*u-l*i)/2:Math.sqrt(Math.pow(l-o,2)+Math.pow(u-i,2))),o=l,i=u;}var h=t.length-3;t[2]=1,function e(t,r,n,o){for(var i,s=o,a=n-r>>1,l=n-r,u=t[r],h=t[r+1],c=t[n],f=t[n+1],p=r+3;ps)i=p,s=g;else if(g===s){var d=Math.abs(p-a);do&&(i-r>3&&e(t,r,i,o),t[i+2]=s,n-i>3&&e(t,i,n,o));}(t,0,h,r),t[h+2]=1,t.size=Math.abs(s),t.start=0,t.end=t.size;}function q(e,t,r,n){for(var o=0;o1?1:r}function H(e,t,r,n,o,i,s,a){if(n/=t,i>=(r/=t)&&s=n)return null;for(var l=[],u=0;u=r&&g=n)){var d=[];if("Point"===f||"MultiPoint"===f)K(c,d,r,n,o);else if("LineString"===f)ee(c,d,r,n,o,!1,a.lineMetrics);else if("MultiLineString"===f)re(c,d,r,n,o,!1);else if("Polygon"===f)re(c,d,r,n,o,!0);else if("MultiPolygon"===f)for(var m=0;m=r&&s<=n&&(t.push(e[i]),t.push(e[i+1]),t.push(e[i+2]));}}function ee(e,t,r,n,o,i,s){for(var a,l,u=te(e),h=0===o?oe:ie,c=e.start,f=0;fr&&(l=h(u,p,g,m,y,r),s&&(u.start=c+a*l)):v>n?x=r&&(l=h(u,p,g,m,y,r),w=!0),x>n&&v<=n&&(l=h(u,p,g,m,y,n),w=!0),!i&&w&&(s&&(u.end=c+a*l),t.push(u),u=te(e)),s&&(c+=a);}var S=e.length-3;p=e[S],g=e[S+1],d=e[S+2],(v=0===o?p:g)>=r&&v<=n&&ne(u,p,g,d),S=u.length-3,i&&S>=3&&(u[S]!==u[0]||u[S+1]!==u[1])&&ne(u,u[0],u[1],u[2]),u.length&&t.push(u);}function te(e){var t=[];return t.size=e.size,t.start=e.start,t.end=e.end,t}function re(e,t,r,n,o,i){for(var s=0;ss.maxX&&(s.maxX=h),c>s.maxY&&(s.maxY=c);}return s}function ce(e,t,r,n){var o=t.geometry,i=t.type,s=[];if("Point"===i||"MultiPoint"===i)for(var a=0;a0&&t.size<(o?s:n))r.numPoints+=t.length/3;else {for(var a=[],l=0;ls)&&(r.numSimplified++,a.push(t[l]),a.push(t[l+1])),r.numPoints++;o&&function(e,t){for(var r=0,n=0,o=e.length,i=o-2;n0===t)for(n=0,o=e.length;n24)throw new Error("maxZoom should be in the 0-24 range");if(t.promoteId&&t.generateId)throw new Error("promoteId and generateId cannot be used together.");var n=function(e,t){var r=[];if("FeatureCollection"===e.type)for(var n=0;n1&&console.time("creation"),f=this.tiles[c]=he(e,t,r,n,l),this.tileCoords.push({z:t,x:r,y:n}),u)){u>1&&(console.log("tile z%d-%d-%d (features: %d, points: %d, simplified: %d)",t,r,n,f.numFeatures,f.numPoints,f.numSimplified),console.timeEnd("creation"));var p="z"+t;this.stats[p]=(this.stats[p]||0)+1,this.total++;}if(f.source=e,o){if(t===l.maxZoom||t===o)continue;var g=1<1&&console.time("clipping");var d,m,y,v,x,w,S=.5*l.buffer/l.extent,M=.5-S,_=.5+S,P=1+S;d=m=y=v=null,x=H(e,h,r-S,r+_,0,f.minX,f.maxX,l),w=H(e,h,r+M,r+P,0,f.minX,f.maxX,l),e=null,x&&(d=H(x,h,n-S,n+_,1,f.minY,f.maxY,l),m=H(x,h,n+M,n+P,1,f.minY,f.maxY,l),x=null),w&&(y=H(w,h,n-S,n+_,1,f.minY,f.maxY,l),v=H(w,h,n+M,n+P,1,f.minY,f.maxY,l),w=null),u>1&&console.timeEnd("clipping"),a.push(d||[],t+1,2*r,2*n),a.push(m||[],t+1,2*r,2*n+1),a.push(y||[],t+1,2*r+1,2*n),a.push(v||[],t+1,2*r+1,2*n+1);}}},pe.prototype.getTile=function(e,t,r){var n=this.options,o=n.extent,i=n.debug;if(e<0||e>24)return null;var s=1<1&&console.log("drilling down to z%d-%d-%d",e,t,r);for(var l,u=e,h=t,c=r;!l&&u>0;)u--,h=Math.floor(h/2),c=Math.floor(c/2),l=this.tiles[ge(u,h,c)];return l&&l.source?(i>1&&console.log("found parent tile z%d-%d-%d",u,h,c),i>1&&console.time("drilling down"),this.splitTile(l.source,u,h,c,e,t,r),i>1&&console.timeEnd("drilling down"),this.tiles[a]?le(this.tiles[a],o):null):null};class me extends e.VectorTileWorkerSource{constructor(e,t,r,n){super(e,t,r,de),n&&(this.loadGeoJSON=n);}loadData(e,t){this._pendingCallback&&this._pendingCallback(null,{abandoned:!0}),this._pendingCallback=t,this._pendingLoadDataParams=e,this._state&&"Idle"!==this._state?this._state="NeedsLoadData":(this._state="Coalescing",this._loadData());}_loadData(){if(!this._pendingCallback||!this._pendingLoadDataParams)return;const t=this._pendingCallback,r=this._pendingLoadDataParams;delete this._pendingCallback,delete this._pendingLoadDataParams;const n=!!(r&&r.request&&r.request.collectResourceTiming)&&new e.RequestPerformance(r.request);this.loadGeoJSON(r,(o,i)=>{if(o||!i)return t(o);if("object"!=typeof i)return t(new Error(`Input data given to '${r.source}' is not a valid GeoJSON object.`));{!function e(t,r){var n,o=t&&t.type;if("FeatureCollection"===o)for(n=0;n`${e.key}: ${e.message}`).join(", "));const n=i.features.filter(e=>t.value.evaluate({zoom:0},e));i={type:"FeatureCollection",features:n};}this._geoJSONIndex=r.cluster?new z(function({superclusterOptions:t,clusterProperties:r}){if(!r||!t)return t;const n={},o={},i={accumulated:null,zoom:0},s={properties:null},a=Object.keys(r);for(const t of a){const[i,s]=r[t],a=e.createExpression(s),l=e.createExpression("string"==typeof i?[i,["accumulated"],["get",t]]:i);n[t]=a.value,o[t]=l.value;}return t.map=e=>{s.properties=e;const t={};for(const e of a)t[e]=n[e].evaluate(i,s);return t},t.reduce=(e,t)=>{s.properties=t;for(const t of a)i.accumulated=e[t],e[t]=o[t].evaluate(i,s);},t}(r)).load(i.features):function(e,t){return new pe(e,t)}(i,r.geojsonVtOptions);}catch(o){return t(o)}this.loaded={};const a={};if(n){const e=n.finish();e&&(a.resourceTiming={},a.resourceTiming[r.source]=JSON.parse(JSON.stringify(e)));}t(null,a);}});}coalesce(){"Coalescing"===this._state?this._state="Idle":"NeedsLoadData"===this._state&&(this._state="Coalescing",this._loadData());}reloadTile(e,t){const r=this.loaded;return r&&r[e.uid]?super.reloadTile(e,t):this.loadTile(e,t)}loadGeoJSON(t,r){if(t.request)e.getJSON(t.request,r);else {if("string"!=typeof t.data)return r(new Error(`Input data given to '${t.source}' is not a valid GeoJSON object.`));try{return r(null,JSON.parse(t.data))}catch(e){return r(new Error(`Input data given to '${t.source}' is not a valid GeoJSON object.`))}}}removeSource(e,t){this._pendingCallback&&this._pendingCallback(null,{abandoned:!0}),t();}getClusterExpansionZoom(e,t){try{t(null,this._geoJSONIndex.getClusterExpansionZoom(e.clusterId));}catch(e){t(e);}}getClusterChildren(e,t){try{t(null,this._geoJSONIndex.getChildren(e.clusterId));}catch(e){t(e);}}getClusterLeaves(e,t){try{t(null,this._geoJSONIndex.getLeaves(e.clusterId,e.limit,e.offset));}catch(e){t(e);}}}class ye{constructor(t){this.self=t,this.actor=new e.Actor(t,this),this.layerIndexes={},this.availableImages={},this.workerSourceTypes={vector:e.VectorTileWorkerSource,geojson:me},this.workerSources={},this.demWorkerSources={},this.self.registerWorkerSource=(e,t)=>{if(this.workerSourceTypes[e])throw new Error(`Worker source with name "${e}" already registered.`);this.workerSourceTypes[e]=t;},this.self.registerRTLTextPlugin=t=>{if(e.plugin.isParsed())throw new Error("RTL text plugin already registered.");e.plugin.applyArabicShaping=t.applyArabicShaping,e.plugin.processBidirectionalText=t.processBidirectionalText,e.plugin.processStyledBidirectionalText=t.processStyledBidirectionalText;};}checkIfReady(e,t,r){r();}setReferrer(e,t){this.referrer=t;}setImages(e,t,r){this.availableImages[e]=t;for(const r in this.workerSources[e]){const n=this.workerSources[e][r];for(const e in n)n[e].availableImages=t;}r();}enableTerrain(e,t,r){this.terrain=t,r();}setLayers(e,t,r){this.getLayerIndex(e).replace(t),r();}updateLayers(e,t,r){this.getLayerIndex(e).update(t.layers,t.removedIds),r();}loadTile(t,r,n){const o=this.enableTerrain?e.extend({enableTerrain:this.terrain},r):r;this.getWorkerSource(t,r.type,r.source).loadTile(o,n);}loadDEMTile(t,r,n){const o=this.enableTerrain?e.extend({buildQuadTree:this.terrain},r):r;this.getDEMWorkerSource(t,r.source).loadTile(o,n);}reloadTile(t,r,n){const o=this.enableTerrain?e.extend({enableTerrain:this.terrain},r):r;this.getWorkerSource(t,r.type,r.source).reloadTile(o,n);}abortTile(e,t,r){this.getWorkerSource(e,t.type,t.source).abortTile(t,r);}removeTile(e,t,r){this.getWorkerSource(e,t.type,t.source).removeTile(t,r);}removeSource(e,t,r){if(!this.workerSources[e]||!this.workerSources[e][t.type]||!this.workerSources[e][t.type][t.source])return;const n=this.workerSources[e][t.type][t.source];delete this.workerSources[e][t.type][t.source],void 0!==n.removeSource?n.removeSource(t,r):r();}loadWorkerSource(e,t,r){try{this.self.importScripts(t.url),r();}catch(e){r(e.toString());}}syncRTLPluginState(t,r,n){try{e.plugin.setState(r);const t=e.plugin.getPluginURL();if(e.plugin.isLoaded()&&!e.plugin.isParsed()&&null!=t){this.self.importScripts(t);const r=e.plugin.isParsed();n(r?void 0:new Error(`RTL Text Plugin failed to import scripts from ${t}`),r);}}catch(e){n(e.toString());}}getAvailableImages(e){let t=this.availableImages[e];return t||(t=[]),t}getLayerIndex(e){let t=this.layerIndexes[e];return t||(t=this.layerIndexes[e]=new n),t}getWorkerSource(e,t,r){return this.workerSources[e]||(this.workerSources[e]={}),this.workerSources[e][t]||(this.workerSources[e][t]={}),this.workerSources[e][t][r]||(this.workerSources[e][t][r]=new this.workerSourceTypes[t]({send:(t,r,n,o,i,s)=>{this.actor.send(t,r,n,e,o,s);},scheduler:this.actor.scheduler},this.getLayerIndex(e),this.getAvailableImages(e))),this.workerSources[e][t][r]}getDEMWorkerSource(e,t){return this.demWorkerSources[e]||(this.demWorkerSources[e]={}),this.demWorkerSources[e][t]||(this.demWorkerSources[e][t]=new i),this.demWorkerSources[e][t]}enforceCacheSizeLimit(t,r){e.enforceCacheSizeLimit(r);}getWorkerPerformanceMetrics(e,t,r){r(void 0,void 0);}}return "undefined"!=typeof WorkerGlobalScope&&"undefined"!=typeof self&&self instanceof WorkerGlobalScope&&(self.worker=new ye(self)),ye})); + +define(["./shared"],(function(e){"use strict";var t=e.createCommonjsModule((function(e){function t(e){return !i(e)}function i(e){return "undefined"==typeof window||"undefined"==typeof document?"not a browser":Array.prototype&&Array.prototype.every&&Array.prototype.filter&&Array.prototype.forEach&&Array.prototype.indexOf&&Array.prototype.lastIndexOf&&Array.prototype.map&&Array.prototype.some&&Array.prototype.reduce&&Array.prototype.reduceRight&&Array.isArray?Function.prototype&&Function.prototype.bind?Object.keys&&Object.create&&Object.getPrototypeOf&&Object.getOwnPropertyNames&&Object.isSealed&&Object.isFrozen&&Object.isExtensible&&Object.getOwnPropertyDescriptor&&Object.defineProperty&&Object.defineProperties&&Object.seal&&Object.freeze&&Object.preventExtensions?"JSON"in window&&"parse"in JSON&&"stringify"in JSON?function(){if(!("Worker"in window&&"Blob"in window&&"URL"in window))return !1;var e,t,i=new Blob([""],{type:"text/javascript"}),o=URL.createObjectURL(i);try{t=new Worker(o),e=!0;}catch(t){e=!1;}return t&&t.terminate(),URL.revokeObjectURL(o),e}()?"Uint8ClampedArray"in window?ArrayBuffer.isView?function(){const e=document.createElement("canvas");e.width=e.height=1;const t=e.getContext("2d");if(!t)return !1;const i=t.getImageData(0,0,1,1);return i&&i.width===e.width}()?(void 0===o[i=e&&e.failIfMajorPerformanceCaveat]&&(o[i]=function(e){const i=function(e){var i=document.createElement("canvas"),o=Object.create(t.webGLContextAttributes);return o.failIfMajorPerformanceCaveat=e,i.probablySupportsContext?i.probablySupportsContext("webgl",o)||i.probablySupportsContext("experimental-webgl",o):i.supportsContext?i.supportsContext("webgl",o)||i.supportsContext("experimental-webgl",o):i.getContext("webgl",o)||i.getContext("experimental-webgl",o)}(e);if(!i)return !1;const o=i.createShader(i.VERTEX_SHADER);return !(!o||i.isContextLost())&&(i.shaderSource(o,"void main() {}"),i.compileShader(o),!0===i.getShaderParameter(o,i.COMPILE_STATUS))}(i)),o[i]?void 0:"insufficient WebGL support"):"insufficient Canvas/getImageData support":"insufficient ArrayBuffer support":"insufficient Uint8ClampedArray support":"insufficient worker support":"insufficient JSON support":"insufficient Object support":"insufficient Function support":"insufficent Array support";var i;}e.exports?e.exports=t:window&&(window.mapboxgl=window.mapboxgl||{},window.mapboxgl.supported=t,window.mapboxgl.notSupportedReason=i);var o={};t.webGLContextAttributes={antialias:!1,alpha:!0,stencil:!0,depth:!0};}));const i={create:function(t,i,o){const a=e.window.document.createElement(t);return void 0!==i&&(a.className=i),o&&o.appendChild(a),a},createNS:function(t,i){return e.window.document.createElementNS(t,i)}},o=e.window.document&&e.window.document.documentElement.style;function a(e){if(!o)return e[0];for(let t=0;t{e.window.removeEventListener("click",c,!0);},0);},i.mousePos=function(t,i){const o=t.getBoundingClientRect();return new e.Point(i.clientX-o.left-t.clientLeft,i.clientY-o.top-t.clientTop)},i.touchPos=function(t,i){const o=t.getBoundingClientRect(),a=[];for(let r=0;r=0?0:t.button},i.remove=function(e){e.parentNode&&e.parentNode.removeChild(e);};class u extends e.Evented{constructor(){super(),this.images={},this.updatedImages={},this.callbackDispatchedThisFrame={},this.loaded=!1,this.requestors=[],this.patterns={},this.atlasImage=new e.RGBAImage({width:1,height:1}),this.dirty=!0;}isLoaded(){return this.loaded}setLoaded(e){if(this.loaded!==e&&(this.loaded=e,e)){for(const{ids:e,callback:t}of this.requestors)this._notify(e,t);this.requestors=[];}}getImage(e){return this.images[e]}addImage(e,t){this._validate(e,t)&&(this.images[e]=t);}_validate(t,i){let o=!0;return this._validateStretch(i.stretchX,i.data&&i.data.width)||(this.fire(new e.ErrorEvent(new Error(`Image "${t}" has invalid "stretchX" value`))),o=!1),this._validateStretch(i.stretchY,i.data&&i.data.height)||(this.fire(new e.ErrorEvent(new Error(`Image "${t}" has invalid "stretchY" value`))),o=!1),this._validateContent(i.content,i)||(this.fire(new e.ErrorEvent(new Error(`Image "${t}" has invalid "content" value`))),o=!1),o}_validateStretch(e,t){if(!e)return !0;let i=0;for(const o of e){if(o[0]=0?1.2:1));}function f(e,t,i,o,a,r,n){for(var s=0;s{let o=this.entries[e];o||(o=this.entries[e]={glyphs:{},requests:{},ranges:{}});let a=o.glyphs[t];if(void 0!==a)return void i(null,{stack:e,id:t,glyph:a});if(a=this._tinySDF(o,e,t),a)return o.glyphs[t]=a,void i(null,{stack:e,id:t,glyph:a});const r=Math.floor(t/256);if(256*r>65535)return void i(new Error("glyphs > 65535 not supported"));if(o.ranges[r])return void i(null,{stack:e,id:t,glyph:a});let n=o.requests[r];n||(n=o.requests[r]=[],v.loadGlyphRange(e,r,this.url,this.requestManager,(e,t)=>{if(t){for(const e in t)this._doesCharSupportLocalGlyph(+e)||(o.glyphs[+e]=t[+e]);o.ranges[r]=!0;}for(const i of n)i(e,t);delete o.requests[r];})),n.push((o,a)=>{o?i(o):a&&i(null,{stack:e,id:t,glyph:a[t]||null});});},(e,t)=>{if(e)i(e);else if(t){const e={};for(const{stack:i,id:o,glyph:a}of t)(e[i]||(e[i]={}))[o]=a&&{id:a.id,bitmap:a.bitmap.clone(),metrics:a.metrics};i(null,e);}});}_doesCharSupportLocalGlyph(t){return !!this.localIdeographFontFamily&&(e.isChar["CJK Unified Ideographs"](t)||e.isChar["Hangul Syllables"](t)||e.isChar.Hiragana(t)||e.isChar.Katakana(t))}_tinySDF(t,i,o){const a=this.localIdeographFontFamily;if(!a)return;if(!this._doesCharSupportLocalGlyph(o))return;let r=t.tinySDF;if(!r){let e="400";/bold/i.test(i)?e="900":/medium/i.test(i)?e="500":/light/i.test(i)&&(e="200"),r=t.tinySDF=new v.TinySDF(24,3,8,.25,a,e);}return {id:o,bitmap:new e.AlphaImage({width:30,height:30},r.draw(String.fromCharCode(o))),metrics:{width:24,height:24,left:0,top:-8,advance:24}}}}v.loadGlyphRange=function(t,i,o,a,r){const n=256*i,s=n+255,l=a.transformRequest(a.normalizeGlyphsURL(o).replace("{fontstack}",t).replace("{range}",`${n}-${s}`),e.ResourceType.Glyphs);e.getArrayBuffer(l,(t,i)=>{if(t)r(t);else if(i){const t={};for(const o of e.parseGlyphPBF(i))t[o.id]=o;r(null,t);}});},v.TinySDF=d;const x=new e.Properties({anchor:new e.DataConstantProperty(e.styleSpec.light.anchor),position:new class{constructor(){this.specification=e.styleSpec.light.position;}possiblyEvaluate(t,i){return function([t,i,o]){const a=e.degToRad(i+90),r=e.degToRad(o);return {x:t*Math.cos(a)*Math.sin(r),y:t*Math.sin(a)*Math.sin(r),z:t*Math.cos(r),azimuthal:i,polar:o}}(t.expression.evaluate(i))}interpolate(t,i,o){return {x:e.number(t.x,i.x,o),y:e.number(t.y,i.y,o),z:e.number(t.z,i.z,o),azimuthal:e.number(t.azimuthal,i.azimuthal,o),polar:e.number(t.polar,i.polar,o)}}},color:new e.DataConstantProperty(e.styleSpec.light.color),intensity:new e.DataConstantProperty(e.styleSpec.light.intensity)});class y extends e.Evented{constructor(t){super(),this._transitionable=new e.Transitionable(x),this.setLight(t),this._transitioning=this._transitionable.untransitioned();}getLight(){return this._transitionable.serialize()}setLight(t,i={}){if(!this._validate(e.validateLight,t,i))for(const i in t){const o=t[i];e.endsWith(i,"-transition")?this._transitionable.setTransition(i.slice(0,-"-transition".length),o):this._transitionable.setValue(i,o);}}updateTransitions(e){this._transitioning=this._transitionable.transitioned(e,this._transitioning);}hasTransition(){return this._transitioning.hasTransition()}recalculate(e){this.properties=this._transitioning.possiblyEvaluate(e);}_validate(t,i,o){return (!o||!1!==o.validate)&&e.emitValidationErrors(this,t.call(e.validateStyle,e.extend({value:i,style:{glyphs:!0,sprite:!0},styleSpec:e.styleSpec})))}}const b=new e.Properties({source:new e.DataConstantProperty(e.styleSpec.terrain.source),exaggeration:new e.DataConstantProperty(e.styleSpec.terrain.exaggeration)});class w extends e.Evented{constructor(t){super(),this._transitionable=new e.Transitionable(b),this.set(t),this._transitioning=this._transitionable.untransitioned();}get(){return this._transitionable.serialize()}set(t){for(const i in t){const o=t[i];e.endsWith(i,"-transition")?this._transitionable.setTransition(i.slice(0,-"-transition".length),o):this._transitionable.setValue(i,o);}}updateTransitions(e){this._transitioning=this._transitionable.transitioned(e,this._transitioning);}hasTransition(){return this._transitioning.hasTransition()}recalculate(e){this.properties=this._transitioning.possiblyEvaluate(e);}}class T{constructor(e,t){this.width=e,this.height=t,this.nextRow=0,this.data=new Uint8Array(this.width*this.height),this.dashEntry={};}getDash(e,t){const i=e.join(",")+String(t);return this.dashEntry[i]||(this.dashEntry[i]=this.addDash(e,t)),this.dashEntry[i]}getDashRanges(e,t,i){const o=[];let a=e.length%2==1?-e[e.length-1]*i:0,r=e[0]*i,n=!0;o.push({left:a,right:r,isDash:n,zeroLength:0===e[0]});let s=e[0];for(let t=1;t1&&(n=e[++r]);const l=Math.abs(s-n.left),c=Math.abs(s-n.right),h=Math.min(l,c);let u;const d=t/i*(o+1);if(n.isDash){const e=o-Math.abs(d);u=Math.sqrt(h*h+e*e);}else u=o-Math.sqrt(h*h+d*d);this.data[a+s]=Math.max(0,Math.min(255,u+128));}}}addRegularDash(e){for(let t=e.length-1;t>=0;--t){const i=e[t],o=e[t+1];i.zeroLength?e.splice(t,1):o&&o.isDash===i.isDash&&(o.left=i.left,e.splice(t,1));}const t=e[0],i=e[e.length-1];t.isDash===i.isDash&&(t.left=i.left-this.width,i.right=t.right+this.width);const o=this.width*this.nextRow;let a=0,r=e[a];for(let t=0;t1&&(r=e[++a]);const i=Math.abs(t-r.left),n=Math.abs(t-r.right),s=Math.min(i,n);this.data[o+t]=Math.max(0,Math.min(255,(r.isDash?s:-s)+128));}}addDash(t,i){const o=i?7:0,a=2*o+1;if(this.nextRow+a>this.height)return e.warnOnce("LineAtlas out of space"),null;0===t.length&&t.push(1);let r=0;for(let i=0;i{this.ready=!0;});}broadcast(t,i,o){e.asyncAll(this.actors,(e,o)=>{e.send(t,i,o);},o=o||function(){});}getActor(){return this.currentActor=(this.currentActor+1)%this.actors.length,this.actors[this.currentActor]}remove(){this.actors.forEach(e=>{e.remove();}),this.actors=[],this.workerPool.release(this.id);}}function C(t,i,o){return i*(e.EXTENT/(t.tileSize*Math.pow(2,o-t.tileID.overscaledZ)))}E.Actor=e.Actor;class S{constructor(e,t,i,o){this.screenBounds=e,this.cameraPoint=t,this._screenRaycastCache={},this._cameraRaycastCache={},this.isAboveHorizon=i,this.screenGeometry=this.bufferedScreenGeometry(0),this.screenGeometryMercator=this.screenGeometry.map(e=>o.pointCoordinate3D(e)),this.cameraGeometry=this.bufferedCameraGeometry(0);}static createFromScreenPoints(t,i){let o,a;if(t instanceof e.Point||"number"==typeof t[0]){const r=e.Point.convert(t);o=[e.Point.convert(t)],a=i.isPointAboveHorizon(r);}else {const r=e.Point.convert(t[0]),n=e.Point.convert(t[1]);o=[r,n],a=e.polygonizeBounds(r,n).every(e=>i.isPointAboveHorizon(e));}return new S(o,i.getCameraPoint(),a,i)}bufferedScreenGeometry(t){return e.polygonizeBounds(this.screenBounds[0],1===this.screenBounds.length?this.screenBounds[0]:this.screenBounds[1],t)}bufferedCameraGeometry(t){const i=[this.screenBounds[0],1===this.screenBounds.length?this.screenBounds[0].add(new e.Point(1,0)):this.screenBounds[1],this.cameraPoint];return e.bufferConvexPolygon(i,t)}containsTile(t,i,o){const a=t.queryPadding+1,r=o?this._bufferedCameraMercator(a,i).map(e=>t.tileID.getTilePoint(e)):this._bufferedScreenMercator(a,i).map(e=>t.tileID.getTilePoint(e)),n=this.screenGeometryMercator.map(e=>t.tileID.getTileVec3(e)),s=n.map(t=>new e.Point(t[0],t[1])),l=i.getFreeCameraOptions().position||new e.MercatorCoordinate(0,0,0),c=t.tileID.getTileVec3(l),h=n.map(t=>{const i=e.sub(t,t,c);return e.normalize(i,i),new e.Ray(c,i)}),u=C(t,1,i.zoom);if(e.polygonIntersectsBox(r,0,0,e.EXTENT,e.EXTENT))return {queryGeometry:this,tilespaceGeometry:s,tilespaceRays:h,bufferedTilespaceGeometry:r,bufferedTilespaceBounds:(d=e.getBounds(r),d.min.x=e.clamp(d.min.x,0,e.EXTENT),d.min.y=e.clamp(d.min.y,0,e.EXTENT),d.max.x=e.clamp(d.max.x,0,e.EXTENT),d.max.y=e.clamp(d.max.y,0,e.EXTENT),d),tile:t,tileID:t.tileID,pixelToTileUnitsFactor:u};var d;}_bufferedScreenMercator(e,t){const i=I(e);if(this._screenRaycastCache[i])return this._screenRaycastCache[i];{const o=this.bufferedScreenGeometry(e).map(e=>t.pointCoordinate3D(e));return this._screenRaycastCache[i]=o,o}}_bufferedCameraMercator(e,t){const i=I(e);if(this._cameraRaycastCache[i])return this._cameraRaycastCache[i];{const o=this.bufferedCameraGeometry(e).map(e=>t.pointCoordinate3D(e));return this._cameraRaycastCache[i]=o,o}}}function I(e){return 100*e|0}function P(t,i,o){const a=function(a,r){if(a)return o(a);if(r){const a=e.pick(e.extend(r,t),["tiles","minzoom","maxzoom","attribution","mapbox_logo","bounds","scheme","tileSize","encoding"]);r.vector_layers&&(a.vectorLayers=r.vector_layers,a.vectorLayerIds=a.vectorLayers.map(e=>e.id)),a.tiles=i.canonicalizeTileset(a,t.url),o(null,a);}};return t.url?e.getJSON(i.transformRequest(i.normalizeSourceURL(t.url),e.ResourceType.Source),a):e.browser.frame(()=>a(null,t))}class M{constructor(t,i,o){this.bounds=e.LngLatBounds.convert(this.validateBounds(t)),this.minzoom=i||0,this.maxzoom=o||24;}validateBounds(e){return Array.isArray(e)&&4===e.length?[Math.max(-180,e[0]),Math.max(-90,e[1]),Math.min(180,e[2]),Math.min(90,e[3])]:[-180,-90,180,90]}contains(t){const i=Math.pow(2,t.z),o=Math.floor(e.mercatorXfromLng(this.bounds.getWest())*i),a=Math.floor(e.mercatorYfromLat(this.bounds.getNorth())*i),r=Math.ceil(e.mercatorXfromLng(this.bounds.getEast())*i),n=Math.ceil(e.mercatorYfromLat(this.bounds.getSouth())*i);return t.x>=o&&t.x=a&&t.y{this._tileJSONRequest=null,this._loaded=!0,t?this.fire(new e.ErrorEvent(t)):i&&(e.extend(this,i),i.bounds&&(this.tileBounds=new M(i.bounds,this.minzoom,this.maxzoom)),e.postTurnstileEvent(i.tiles),this.fire(new e.Event("data",{dataType:"source",sourceDataType:"metadata"})),this.fire(new e.Event("data",{dataType:"source",sourceDataType:"content"})));});}loaded(){return this._loaded}onAdd(e){this.map=e,this.load();}onRemove(){this._tileJSONRequest&&(this._tileJSONRequest.cancel(),this._tileJSONRequest=null);}serialize(){return e.extend({},this._options)}hasTile(e){return !this.tileBounds||this.tileBounds.contains(e.canonical)}loadTile(t,i){const o=e.browser.devicePixelRatio>=2,a=this.map._requestManager.normalizeTileURL(t.tileID.canonical.url(this.tiles,this.scheme),o,this.tileSize);t.request=e.getImage(this.map._requestManager.transformRequest(a,e.ResourceType.Tile),(o,a)=>{if(delete t.request,t.aborted)t.state="unloaded",i(null);else if(o)t.state="errored",i(o);else if(a){this.map._refreshExpiredTiles&&t.setExpiryData(a),delete a.cacheControl,delete a.expires;const o=this.map.painter.context,r=o.gl;t.texture=this.map.painter.getTileTexture(a.width),t.texture?t.texture.update(a,{useMipmap:!0}):(t.texture=new e.Texture(o,a,r.RGBA,{useMipmap:!0}),t.texture.bind(r.LINEAR,r.CLAMP_TO_EDGE,r.LINEAR_MIPMAP_NEAREST),o.extTextureFilterAnisotropic&&r.texParameterf(r.TEXTURE_2D,o.extTextureFilterAnisotropic.TEXTURE_MAX_ANISOTROPY_EXT,o.extTextureFilterAnisotropicMax)),t.state="loaded",e.cacheEntryPossiblyAdded(this.dispatcher),i(null);}});}abortTile(e,t){e.request&&(e.request.cancel(),delete e.request),t();}unloadTile(e,t){e.texture&&this.map.painter.saveTileTexture(e.texture),t();}hasTransition(){return !1}}var A=e.createLayout([{name:"a_pos",type:"Int16",components:2},{name:"a_texture_pos",type:"Int16",components:2}]);class D extends e.Evented{constructor(e,t,i,o){super(),this.id=e,this.dispatcher=i,this.coordinates=t.coordinates,this.type="image",this.minzoom=0,this.maxzoom=22,this.tileSize=512,this.tiles={},this._loaded=!1,this.setEventedParent(o),this.options=t;}load(t,i){this._loaded=!1,this.fire(new e.Event("dataloading",{dataType:"source"})),this.url=this.options.url,e.getImage(this.map._requestManager.transformRequest(this.url,e.ResourceType.Image),(o,a)=>{this._loaded=!0,o?this.fire(new e.ErrorEvent(o)):a&&(this.image=a,t&&(this.coordinates=t),i&&i(),this._finishLoading());});}loaded(){return this._loaded}updateImage(e){return this.image&&e.url?(this.options.url=e.url,this.load(e.coordinates,()=>{this.texture=null;}),this):this}_finishLoading(){this.map&&(this.setCoordinates(this.coordinates),this.fire(new e.Event("data",{dataType:"source",sourceDataType:"metadata"})));}onAdd(e){this.map=e,this.load();}setCoordinates(t){this.coordinates=t;const i=t.map(e.MercatorCoordinate.fromLngLat);this.tileID=function(t){let i=1/0,o=1/0,a=-1/0,r=-1/0;for(const e of t)i=Math.min(i,e.x),o=Math.min(o,e.y),a=Math.max(a,e.x),r=Math.max(r,e.y);const n=Math.max(a-i,r-o),s=Math.max(0,Math.floor(-Math.log(n)/Math.LN2)),l=Math.pow(2,s);return new e.CanonicalTileID(s,Math.floor((i+a)/2*l),Math.floor((o+r)/2*l))}(i),this.minzoom=this.maxzoom=this.tileID.z;const o=i.map(e=>this.tileID.getTilePoint(e)._round());return this._boundsArray=new e.StructArrayLayout4i8,this._boundsArray.emplaceBack(o[0].x,o[0].y,0,0),this._boundsArray.emplaceBack(o[1].x,o[1].y,e.EXTENT,0),this._boundsArray.emplaceBack(o[3].x,o[3].y,0,e.EXTENT),this._boundsArray.emplaceBack(o[2].x,o[2].y,e.EXTENT,e.EXTENT),this.boundsBuffer&&(this.boundsBuffer.destroy(),delete this.boundsBuffer),this.fire(new e.Event("data",{dataType:"source",sourceDataType:"content"})),this}prepare(){if(0===Object.keys(this.tiles).length||!this.image)return;const t=this.map.painter.context,i=t.gl;this.boundsBuffer||(this.boundsBuffer=t.createVertexBuffer(this._boundsArray,A.members)),this.boundsSegments||(this.boundsSegments=e.SegmentVector.simpleSegment(0,0,4,2)),this.texture||(this.texture=new e.Texture(t,this.image,i.RGBA),this.texture.bind(i.LINEAR,i.CLAMP_TO_EDGE));for(const e in this.tiles){const t=this.tiles[e];"loaded"!==t.state&&(t.state="loaded",t.texture=this.texture);}}loadTile(e,t){this.tileID&&this.tileID.equals(e.tileID.canonical)?(this.tiles[String(e.tileID.wrap)]=e,e.buckets={},t(null)):(e.state="errored",t(null));}serialize(){return {type:"image",url:this.options.url,coordinates:this.coordinates}}hasTransition(){return !1}}const L={vector:class extends e.Evented{constructor(t,i,o,a){if(super(),this.id=t,this.dispatcher=o,this.type="vector",this.minzoom=0,this.maxzoom=22,this.scheme="xyz",this.tileSize=512,this.reparseOverscaled=!0,this.isTileClipped=!0,this._loaded=!1,e.extend(this,e.pick(i,["url","scheme","tileSize","promoteId"])),this._options=e.extend({type:"vector"},i),this._collectResourceTiming=i.collectResourceTiming,512!==this.tileSize)throw new Error("vector tile sources must have a tileSize of 512");this.setEventedParent(a),this._tileWorkers={},this._deduped=new e.DedupedRequest;}load(){this._loaded=!1,this.fire(new e.Event("dataloading",{dataType:"source"})),this._tileJSONRequest=P(this._options,this.map._requestManager,(t,i)=>{this._tileJSONRequest=null,this._loaded=!0,t?this.fire(new e.ErrorEvent(t)):i&&(e.extend(this,i),i.bounds&&(this.tileBounds=new M(i.bounds,this.minzoom,this.maxzoom)),e.postTurnstileEvent(i.tiles,this.map._requestManager._customAccessToken),this.fire(new e.Event("data",{dataType:"source",sourceDataType:"metadata"})),this.fire(new e.Event("data",{dataType:"source",sourceDataType:"content"})));});}loaded(){return this._loaded}hasTile(e){return !this.tileBounds||this.tileBounds.contains(e.canonical)}onAdd(e){this.map=e,this.load();}setSourceProperty(e){this._tileJSONRequest&&this._tileJSONRequest.cancel(),e();const t=this.map.style._getSourceCaches(this.id);for(const e of t)e.clearTiles();this.load();}setTiles(e){return this.setSourceProperty(()=>{this._options.tiles=e;}),this}setUrl(e){return this.setSourceProperty(()=>{this.url=e,this._options.url=e;}),this}onRemove(){this._tileJSONRequest&&(this._tileJSONRequest.cancel(),this._tileJSONRequest=null);}serialize(){return e.extend({},this._options)}loadTile(t,i){const o=this.map._requestManager.normalizeTileURL(t.tileID.canonical.url(this.tiles,this.scheme)),a={request:this.map._requestManager.transformRequest(o,e.ResourceType.Tile),data:void 0,uid:t.uid,tileID:t.tileID,tileZoom:t.tileZoom,zoom:t.tileID.overscaledZ,tileSize:this.tileSize*t.tileID.overscaleFactor(),type:this.type,source:this.id,pixelRatio:e.browser.devicePixelRatio,showCollisionBoxes:this.map.showCollisionBoxes,promoteId:this.promoteId,isSymbolTile:t.isSymbolTile};if(a.request.collectResourceTiming=this._collectResourceTiming,t.actor&&"expired"!==t.state)"loading"===t.state?t.reloadCallback=i:t.request=t.actor.send("reloadTile",a,r.bind(this));else if(t.actor=this._tileWorkers[o]=this._tileWorkers[o]||this.dispatcher.getActor(),this.dispatcher.ready)t.request=t.actor.send("loadTile",a,r.bind(this));else {const i=e.loadVectorTile.call({deduped:this._deduped},a,(e, i)=>{e||!i?r.call(this,e):(a.data={cacheControl:i.cacheControl,expires:i.expires,rawData:i.rawData.slice(0)},t.actor&&t.actor.send("loadTile",a,r.bind(this)));},!0);t.request={cancel:i};}function r(o,a){return delete t.request,t.aborted?i(null):o&&404!==o.status?i(o):(a&&a.resourceTiming&&(t.resourceTiming=a.resourceTiming),this.map._refreshExpiredTiles&&a&&t.setExpiryData(a),t.loadVectorData(a,this.map.painter),e.cacheEntryPossiblyAdded(this.dispatcher),i(null),void(t.reloadCallback&&(this.loadTile(t,t.reloadCallback),t.reloadCallback=null)))}}abortTile(e){e.request&&(e.request.cancel(),delete e.request),e.actor&&e.actor.send("abortTile",{uid:e.uid,type:this.type,source:this.id},void 0);}unloadTile(e){e.unloadVectorData(),e.actor&&e.actor.send("removeTile",{uid:e.uid,type:this.type,source:this.id},void 0);}hasTransition(){return !1}afterUpdate(){this._tileWorkers={};}},raster:z,"raster-dem":class extends z{constructor(t,i,o,a){super(t,i,o,a),this.type="raster-dem",this.maxzoom=22,this._options=e.extend({type:"raster-dem"},i),this.encoding=i.encoding||"mapbox";}serialize(){return {type:"raster-dem",url:this.url,tileSize:this.tileSize,tiles:this.tiles,bounds:this.bounds,encoding:this.encoding}}loadTile(t,i){const o=this.map._requestManager.normalizeTileURL(t.tileID.canonical.url(this.tiles,this.scheme),!1,this.tileSize);function a(e,o){e&&(t.state="errored",i(e)),o&&(t.dem=o,t.dem.onDeserialize(),t.needsHillshadePrepare=!0,t.needsDEMTextureUpload=!0,t.state="loaded",i(null));}t.request=e.getImage(this.map._requestManager.transformRequest(o,e.ResourceType.Tile),function(o,r){if(delete t.request,t.aborted)t.state="unloaded",i(null);else if(o)t.state="errored",i(o);else if(r){this.map._refreshExpiredTiles&&t.setExpiryData(r),delete r.cacheControl,delete r.expires;const i=e.window.ImageBitmap&&r instanceof e.window.ImageBitmap&&e.offscreenCanvasSupported(),o=1-(r.width-e.prevPowerOfTwo(r.width))/2;o<1||t.neighboringTiles||(t.neighboringTiles=this._getNeighboringTiles(t.tileID));const n=i?r:e.browser.getImageData(r,o),s={uid:t.uid,coord:t.tileID,source:this.id,rawImageData:n,encoding:this.encoding,padding:o};t.actor&&"expired"!==t.state||(t.actor=this.dispatcher.getActor(),t.actor.send("loadDEMTile",s,a.bind(this)));}}.bind(this));}_getNeighboringTiles(t){const i=t.canonical,o=Math.pow(2,i.z),a=(i.x-1+o)%o,r=0===i.x?t.wrap-1:t.wrap,n=(i.x+1+o)%o,s=i.x+1===o?t.wrap+1:t.wrap,l={};return l[new e.OverscaledTileID(t.overscaledZ,r,i.z,a,i.y).key]={backfilled:!1},l[new e.OverscaledTileID(t.overscaledZ,s,i.z,n,i.y).key]={backfilled:!1},i.y>0&&(l[new e.OverscaledTileID(t.overscaledZ,r,i.z,a,i.y-1).key]={backfilled:!1},l[new e.OverscaledTileID(t.overscaledZ,t.wrap,i.z,i.x,i.y-1).key]={backfilled:!1},l[new e.OverscaledTileID(t.overscaledZ,s,i.z,n,i.y-1).key]={backfilled:!1}),i.y+1{if(t)return void this.fire(new e.ErrorEvent(t));const i={dataType:"source",sourceDataType:"metadata"};this._collectResourceTiming&&this._resourceTiming&&this._resourceTiming.length>0&&(i.resourceTiming=this._resourceTiming,this._resourceTiming=[]),this.fire(new e.Event("data",i));});}onAdd(e){this.map=e,this.load();}setData(t){return this._data=t,this.fire(new e.Event("dataloading",{dataType:"source"})),this._updateWorkerData(t=>{if(t)return void this.fire(new e.ErrorEvent(t));const i={dataType:"source",sourceDataType:"content"};this._collectResourceTiming&&this._resourceTiming&&this._resourceTiming.length>0&&(i.resourceTiming=this._resourceTiming,this._resourceTiming=[]),this.fire(new e.Event("data",i));}),this}getClusterExpansionZoom(e,t){return this.actor.send("geojson.getClusterExpansionZoom",{clusterId:e,source:this.id},t),this}getClusterChildren(e,t){return this.actor.send("geojson.getClusterChildren",{clusterId:e,source:this.id},t),this}getClusterLeaves(e,t,i,o){return this.actor.send("geojson.getClusterLeaves",{source:this.id,clusterId:e,limit:t,offset:i},o),this}_updateWorkerData(t){this._loaded=!1;const i=e.extend({},this.workerOptions),o=this._data;"string"==typeof o?(i.request=this.map._requestManager.transformRequest(e.browser.resolveURL(o),e.ResourceType.Source),i.request.collectResourceTiming=this._collectResourceTiming):i.data=JSON.stringify(o),this.actor.send(`${this.type}.loadData`,i,(e,o)=>{this._removed||o&&o.abandoned||(this._loaded=!0,o&&o.resourceTiming&&o.resourceTiming[this.id]&&(this._resourceTiming=o.resourceTiming[this.id].slice(0)),this.actor.send(`${this.type}.coalesce`,{source:i.source},null),t(e));});}loaded(){return this._loaded}loadTile(t,i){const o=t.actor?"reloadTile":"loadTile";t.actor=this.actor,t.request=this.actor.send(o,{type:this.type,uid:t.uid,tileID:t.tileID,tileZoom:t.tileZoom,zoom:t.tileID.overscaledZ,maxZoom:this.maxzoom,tileSize:this.tileSize,source:this.id,pixelRatio:e.browser.devicePixelRatio,showCollisionBoxes:this.map.showCollisionBoxes,promoteId:this.promoteId},(e,a)=>(delete t.request,t.unloadVectorData(),t.aborted?i(null):e?i(e):(t.loadVectorData(a,this.map.painter,"reloadTile"===o),i(null))));}abortTile(e){e.request&&(e.request.cancel(),delete e.request),e.aborted=!0;}unloadTile(e){e.unloadVectorData(),this.actor.send("removeTile",{uid:e.uid,type:this.type,source:this.id});}onRemove(){this._removed=!0,this.actor.send("removeSource",{type:this.type,source:this.id});}serialize(){return e.extend({},this._options,{type:this.type,data:this._data})}hasTransition(){return !1}},video:class extends D{constructor(e,t,i,o){super(e,t,i,o),this.roundZoom=!0,this.type="video",this.options=t;}load(){this._loaded=!1;const t=this.options;this.urls=[];for(const i of t.urls)this.urls.push(this.map._requestManager.transformRequest(i,e.ResourceType.Source).url);e.getVideo(this.urls,(t,i)=>{this._loaded=!0,t?this.fire(new e.ErrorEvent(t)):i&&(this.video=i,this.video.loop=!0,this.video.addEventListener("playing",()=>{this.map.triggerRepaint();}),this.map&&this.video.play(),this._finishLoading());});}pause(){this.video&&this.video.pause();}play(){this.video&&this.video.play();}seek(t){if(this.video){const i=this.video.seekable;ti.end(0)?this.fire(new e.ErrorEvent(new e.ValidationError(`sources.${this.id}`,null,`Playback for this video can be set only between the ${i.start(0)} and ${i.end(0)}-second mark.`))):this.video.currentTime=t;}}getVideo(){return this.video}onAdd(e){this.map||(this.map=e,this.load(),this.video&&(this.video.play(),this.setCoordinates(this.coordinates)));}prepare(){if(0===Object.keys(this.tiles).length||this.video.readyState<2)return;const t=this.map.painter.context,i=t.gl;this.boundsBuffer||(this.boundsBuffer=t.createVertexBuffer(this._boundsArray,A.members)),this.boundsSegments||(this.boundsSegments=e.SegmentVector.simpleSegment(0,0,4,2)),this.texture?this.video.paused||(this.texture.bind(i.LINEAR,i.CLAMP_TO_EDGE),i.texSubImage2D(i.TEXTURE_2D,0,0,0,i.RGBA,i.UNSIGNED_BYTE,this.video)):(this.texture=new e.Texture(t,this.video,i.RGBA),this.texture.bind(i.LINEAR,i.CLAMP_TO_EDGE));for(const e in this.tiles){const t=this.tiles[e];"loaded"!==t.state&&(t.state="loaded",t.texture=this.texture);}}serialize(){return {type:"video",urls:this.urls,coordinates:this.coordinates}}hasTransition(){return this.video&&!this.video.paused}},image:D,canvas:class extends D{constructor(t,i,o,a){super(t,i,o,a),i.coordinates?Array.isArray(i.coordinates)&&4===i.coordinates.length&&!i.coordinates.some(e=>!Array.isArray(e)||2!==e.length||e.some(e=>"number"!=typeof e))||this.fire(new e.ErrorEvent(new e.ValidationError(`sources.${t}`,null,'"coordinates" property must be an array of 4 longitude/latitude array pairs'))):this.fire(new e.ErrorEvent(new e.ValidationError(`sources.${t}`,null,'missing required property "coordinates"'))),i.animate&&"boolean"!=typeof i.animate&&this.fire(new e.ErrorEvent(new e.ValidationError(`sources.${t}`,null,'optional "animate" property must be a boolean value'))),i.canvas?"string"==typeof i.canvas||i.canvas instanceof e.window.HTMLCanvasElement||this.fire(new e.ErrorEvent(new e.ValidationError(`sources.${t}`,null,'"canvas" must be either a string representing the ID of the canvas element from which to read, or an HTMLCanvasElement instance'))):this.fire(new e.ErrorEvent(new e.ValidationError(`sources.${t}`,null,'missing required property "canvas"'))),this.options=i,this.animate=void 0===i.animate||i.animate;}load(){this._loaded=!0,this.canvas||(this.canvas=this.options.canvas instanceof e.window.HTMLCanvasElement?this.options.canvas:e.window.document.getElementById(this.options.canvas)),this.width=this.canvas.width,this.height=this.canvas.height,this._hasInvalidDimensions()?this.fire(new e.ErrorEvent(new Error("Canvas dimensions cannot be less than or equal to zero."))):(this.play=function(){this._playing=!0,this.map.triggerRepaint();},this.pause=function(){this._playing&&(this.prepare(),this._playing=!1);},this._finishLoading());}getCanvas(){return this.canvas}onAdd(e){this.map=e,this.load(),this.canvas&&this.animate&&this.play();}onRemove(){this.pause();}prepare(){let t=!1;if(this.canvas.width!==this.width&&(this.width=this.canvas.width,t=!0),this.canvas.height!==this.height&&(this.height=this.canvas.height,t=!0),this._hasInvalidDimensions())return;if(0===Object.keys(this.tiles).length)return;const i=this.map.painter.context,o=i.gl;this.boundsBuffer||(this.boundsBuffer=i.createVertexBuffer(this._boundsArray,A.members)),this.boundsSegments||(this.boundsSegments=e.SegmentVector.simpleSegment(0,0,4,2)),this.texture?(t||this._playing)&&this.texture.update(this.canvas,{premultiply:!0}):this.texture=new e.Texture(i,this.canvas,o.RGBA,{premultiply:!0});for(const e in this.tiles){const t=this.tiles[e];"loaded"!==t.state&&(t.state="loaded",t.texture=this.texture);}}serialize(){return {type:"canvas",coordinates:this.coordinates}}hasTransition(){return this._playing}_hasInvalidDimensions(){for(const e of [this.canvas.width,this.canvas.height])if(isNaN(e)||e<=0)return !0;return !1}}},R=function(t,i,o,a){const r=new L[i.type](t,i,o,a);if(r.id!==t)throw new Error(`Expected Source id to be ${t} instead of ${r.id}`);return e.bindAll(["load","abort","unload","serialize","prepare"],r),r};function k(t,i){const o=e.identity([]);return e.scale(o,o,[.5*t.width,.5*-t.height,1]),e.translate(o,o,[1,-1,0]),e.multiply(o,o,t.calculatePosMatrix(i.toUnwrapped()))}function B(e,t,i,o,a,r,n,s=!1){const l=e.tilesIn(o,n,s);l.sort(O);const c=[];for(const o of l)c.push({wrappedTileID:o.tile.tileID.wrapped().key,queryResults:o.tile.queryRenderedFeatures(t,i,e._state,o,a,r,k(e.transform,o.tile.tileID),s)});const h=function(e){const t={},i={};for(const o of e){const e=o.queryResults,a=o.wrappedTileID,r=i[a]=i[a]||{};for(const i in e){const o=e[i],a=r[i]=r[i]||{},n=t[i]=t[i]||[];for(const e of o)a[e.featureIndex]||(a[e.featureIndex]=!0,n.push(e));}}return t}(c);for(const t in h)h[t].forEach(t=>{const i=t.feature,o=e.getFeatureState(i.layer["source-layer"],i.id);i.source=i.layer.source,i.layer["source-layer"]&&(i.sourceLayer=i.layer["source-layer"]),i.state=o;});return h}function F(e,t){const i=e.getRenderableIds().map(t=>e.getTileByID(t)),o=[],a={};for(let e=0;e{e.terminate();}),this.workers=null);}isPreloaded(){return !!this.active[N]}numActive(){return Object.keys(this.active).length}}let G;function q(){return G||(G=new Z),G}function V(t,i){const o={};for(const e in t)"ref"!==e&&(o[e]=t[e]);return e.refProperties.forEach(e=>{e in i&&(o[e]=i[e]);}),o}function $(e){e=e.slice();const t=Object.create(null);for(let i=0;i0?(a-n)/s:0;return this.points[r].mult(1-l).add(this.points[i].mult(l))}}class te{constructor(e,t,i){const o=this.boxCells=[],a=this.circleCells=[];this.xCellCount=Math.ceil(e/i),this.yCellCount=Math.ceil(t/i);for(let e=0;ethis.width||o<0||t>this.height)return !a&&[];const n=[];if(e<=0&&t<=0&&this.width<=i&&this.height<=o){if(a)return !0;for(let e=0;e0:n}_queryCircle(e,t,i,o,a){const r=e-i,n=e+i,s=t-i,l=t+i;if(n<0||r>this.width||l<0||s>this.height)return !o&&[];const c=[];return this._forEachCell(r,s,n,l,this._queryCellCircle,c,{hitTest:o,circle:{x:e,y:t,radius:i},seenUids:{box:{},circle:{}}},a),o?c.length>0:c}query(e,t,i,o,a){return this._query(e,t,i,o,!1,a)}hitTest(e,t,i,o,a){return this._query(e,t,i,o,!0,a)}hitTestCircle(e,t,i,o){return this._queryCircle(e,t,i,!0,o)}_queryCell(e,t,i,o,a,r,n,s){const l=n.seenUids,c=this.boxCells[a];if(null!==c){const a=this.bboxes;for(const h of c)if(!l.box[h]){l.box[h]=!0;const c=4*h;if(e<=a[c+2]&&t<=a[c+3]&&i>=a[c+0]&&o>=a[c+1]&&(!s||s(this.boxKeys[h]))){if(n.hitTest)return r.push(!0),!0;r.push({key:this.boxKeys[h],x1:a[c],y1:a[c+1],x2:a[c+2],y2:a[c+3]});}}}const h=this.circleCells[a];if(null!==h){const a=this.circles;for(const c of h)if(!l.circle[c]){l.circle[c]=!0;const h=3*c;if(this._circleAndRectCollide(a[h],a[h+1],a[h+2],e,t,i,o)&&(!s||s(this.circleKeys[c]))){if(n.hitTest)return r.push(!0),!0;{const e=a[h],t=a[h+1],i=a[h+2];r.push({key:this.circleKeys[c],x1:e-i,y1:t-i,x2:e+i,y2:t+i});}}}}}_queryCellCircle(e,t,i,o,a,r,n,s){const l=n.circle,c=n.seenUids,h=this.boxCells[a];if(null!==h){const e=this.bboxes;for(const t of h)if(!c.box[t]){c.box[t]=!0;const i=4*t;if(this._circleAndRectCollide(l.x,l.y,l.radius,e[i+0],e[i+1],e[i+2],e[i+3])&&(!s||s(this.boxKeys[t])))return r.push(!0),!0}}const u=this.circleCells[a];if(null!==u){const e=this.circles;for(const t of u)if(!c.circle[t]){c.circle[t]=!0;const i=3*t;if(this._circlesCollide(e[i],e[i+1],e[i+2],l.x,l.y,l.radius)&&(!s||s(this.circleKeys[t])))return r.push(!0),!0}}}_forEachCell(e,t,i,o,a,r,n,s){const l=this._convertToXCellCoord(e),c=this._convertToYCellCoord(t),h=this._convertToXCellCoord(i),u=this._convertToYCellCoord(o);for(let d=l;d<=h;d++)for(let l=c;l<=u;l++)if(a.call(this,e,t,i,o,this.xCellCount*l+d,r,n,s))return}_convertToXCellCoord(e){return Math.max(0,Math.min(this.xCellCount-1,Math.floor(e*this.xScale)))}_convertToYCellCoord(e){return Math.max(0,Math.min(this.yCellCount-1,Math.floor(e*this.yScale)))}_circlesCollide(e,t,i,o,a,r){const n=o-e,s=a-t,l=i+r;return l*l>n*n+s*s}_circleAndRectCollide(e,t,i,o,a,r,n){const s=(r-o)/2,l=Math.abs(e-(o+s));if(l>s+i)return !1;const c=(n-a)/2,h=Math.abs(t-(a+c));if(h>c+i)return !1;if(l<=s||h<=c)return !0;const u=l-s,d=h-c;return u*u+d*d<=i*i}}function ie(t,i,o,a,r){const n=e.create();return i?(e.scale(n,n,[1/r,1/r,1]),o||e.rotateZ(n,n,a.angle)):e.multiply(n,a.labelPlaneMatrix,t),n}function oe(t,i,o,a,r){if(i){const i=e.clone(t);return e.scale(i,i,[r,r,1]),o||e.rotateZ(i,i,-a.angle),i}return a.glCoordMatrix}function ae(t,i,o=0){const a=[t.x,t.y,o,1];o?e.transformMat4(a,a,i):pe(a,a,i);const r=a[3];return {point:new e.Point(a[0]/r,a[1]/r),signedDistanceFromCamera:r}}function re(e,t){return Math.min(.5+e/t*.5,1.5)}function ne(e,t){const i=e[0]/e[3],o=e[1]/e[3];return i>=-t[0]&&i<=t[0]&&o>=-t[1]&&o<=t[1]}function se(t,i,o,a,r,n,s,l,c){const h=a?t.textSizeData:t.iconSizeData,u=e.evaluateSizeForZoom(h,o.transform.zoom),d=[256/o.width*2+1,256/o.height*2+1],_=a?t.text.dynamicLayoutVertexArray:t.icon.dynamicLayoutVertexArray;_.clear();const m=t.lineVertexArray,p=a?t.text.placedSymbolArray:t.icon.placedSymbolArray,f=o.transform.width/o.transform.height;let g=!1;for(let a=0;aMath.abs(o.x-i.x)*a?{useVertical:!0}:(t===e.WritingMode.vertical?i.yo.x)?{needsFlipping:!0}:null}function he(t,i,o,a,r,n,s,l,c,h,u,d,_,m,p){const f=i/24,g=t.lineOffsetX*f,v=t.lineOffsetY*f;let x;if(t.numGlyphs>1){const e=t.glyphStartIndex+t.numGlyphs,i=t.lineStartIndex,r=t.lineStartIndex+t.lineLength,h=le(f,l,g,v,o,u,d,t,c,n,_,p);if(!h)return {notEnoughRoom:!0};const y=ae(h.first.point,s).point,b=ae(h.last.point,s).point;if(a&&!o){const e=ce(t.writingMode,y,b,m);if(e)return e}x=[h.first];for(let a=t.glyphStartIndex+1;a0?n.point:ue(d,a,i,1,r),l=ce(t.writingMode,i,s,m);if(l)return l}const i=de(f*l.getoffsetX(t.glyphStartIndex),g,v,o,u,d,t.segment,t.lineStartIndex,t.lineStartIndex+t.lineLength,c,n,_,p);if(!i)return {notEnoughRoom:!0};x=[i];}for(const t of x)e.addDynamicAttributes(h,t.point,t.angle);return {}}function ue(e,t,i,o,a,r){const n=e.add(e.sub(t)._unit()),s=ae(n,a,r?r(n):0).point,l=i.sub(s);return i.add(l._mult(o/l.mag()))}function de(t,i,o,a,r,n,s,l,c,h,u,d,_,m,p){const f=a?t-i:t+i;let g=f>0?1:-1,v=0;a&&(g*=-1,v=Math.PI),g<0&&(v+=Math.PI);let x=g>0?l+s:l+s+1,y=r,b=r,w=0,T=0;const E=Math.abs(f),C=[],S=[];let I=n;const P=()=>{const t=x-g;return 0===w?n:new e.Point(h.getx(t),h.gety(t))},M=()=>ue(P(),I,b,E-w+1,u,_);for(;w+T<=E;){if(x+=g,x=c)return null;if(b=y,C.push(y),m&&S.push(I||P()),y=d[x],void 0===y){I=new e.Point(h.getx(x),h.gety(x));const t=ae(I,u,_?_(I):0);y=t.signedDistanceFromCamera>0?d[x]=t.point:M();}else I=null;w+=T,T=b.dist(y);}p&&_&&(I=I||new e.Point(h.getx(x),h.gety(x)),d[x]=y=void 0===d[x]?y:M(),T=b.dist(y));const z=(E-w)/T,A=y.sub(b),D=A.mult(z)._add(b);o&&D._add(A._unit()._perp()._mult(o*g));const L=v+Math.atan2(y.y-b.y,y.x-b.x);return C.push(D),m&&(I=I||new e.Point(h.getx(x),h.gety(x)),S.push(function(t,i,o){const a=1-o;return new e.Point(t.x*a+i.x*o,t.y*a+i.y*o)}(S.length>0?S[S.length-1]:I,I,z))),{point:D,angle:L,path:C,tilePath:S}}const _e=new Float32Array([-1/0,-1/0,0,-1/0,-1/0,0,-1/0,-1/0,0,-1/0,-1/0,0]);function me(e,t){for(let i=0;if.getAtTileOffset(m,e.x,e.y):e=>0,v=new e.Point(i.anchorX,i.anchorY),x=g(v),y=ae(v,n,x),b=re(this.transform.cameraToCenterDistance,y.signedDistanceFromCamera),w=(h?r/b:r*b)/e.ONE_EM,T=ae(v,s,x).point,E=y.signedDistanceFromCamera>0?le(w,a,i.lineOffsetX*w,i.lineOffsetY*w,!1,T,v,i,o,s,{},f&&!h?g:null,h&&!!f):null;let C=!1,S=!1,I=!0;if(E){const i=.5*d*b+_,o=new e.Point(-100,-100),a=new e.Point(this.screenRightBoundary,this.screenBottomBoundary),r=new ee,n=E.first,s=E.last;let h=[];for(let e=n.path.length-1;e>=1;e--)h.push(n.path[e]);for(let e=1;e{const i=g(tae(e,l));h=e.some(e=>e.signedDistanceFromCamera<=0)?[]:e.map(e=>e.point);}let v=[];if(h.length>0){const t=h[0].clone(),i=h[0].clone();for(let e=1;e=o.x&&i.x<=a.x&&t.y>=o.y&&i.y<=a.y?[h]:i.xa.x||i.ya.y?[]:e.clipLine([h],o.x,o.y,a.x,a.y);}for(const e of v){r.reset(e,.25*i);let o=0;o=r.length<=.5*i?1:Math.ceil(r.paddedLength/m)+1;for(let e=0;e=this.screenRightBoundary||o<100||t>this.screenBottomBoundary}isInsideGrid(e,t,i,o){return i>=0&&e=0&&te.collisionGroupID===t};}return this.collisionGroups[e]}}function Te(t,i,o,a,r){const{horizontalAlign:n,verticalAlign:s}=e.getAnchorAlignment(t),l=-(n-.5)*i,c=-(s-.5)*o,h=e.evaluateVariableOffset(t,a);return new e.Point(l+h[0]*r,c+h[1]*r)}function Ee(t,i,o,a,r){const n=new e.Point(t,i);return o&&n._rotate(a?r:-r),n}class Ce{constructor(e,t,i,o){this.transform=e.clone(),this.collisionIndex=new fe(this.transform),this.placements={},this.opacities={},this.variableOffsets={},this.stale=!1,this.commitTime=0,this.fadeDuration=t,this.retainedQueryData={},this.collisionGroups=new we(i),this.collisionCircleArrays={},this.prevPlacement=o,o&&(o.prevPlacement=void 0),this.placedOrientations={};}getBucketParts(t,i,o,a){const r=o.getBucket(i),n=o.latestFeatureIndex;if(!r||!n||i.id!==r.layerIds[0])return;const s=o.collisionBoxArray,l=r.layers[0].layout,c=Math.pow(2,this.transform.zoom-o.tileID.overscaledZ),h=o.tileSize/e.EXTENT,u=this.transform.calculatePosMatrix(o.tileID.toUnwrapped()),d="map"===l.get("text-pitch-alignment"),_="map"===l.get("text-rotation-alignment"),m=C(o,1,this.transform.zoom),p=ie(u,d,_,this.transform,m);let f=null;if(d){const t=oe(u,d,_,this.transform,m);f=e.multiply([],this.transform.labelPlaneMatrix,t);}this.retainedQueryData[r.bucketInstanceId]=new be(r.bucketInstanceId,n,r.sourceLayerIndex,r.index,o.tileID);const g={bucket:r,layout:l,posMatrix:u,textLabelPlaneMatrix:p,labelToScreenMatrix:f,scale:c,textPixelRatio:h,holdingForFade:o.holdingForFade(),collisionBoxArray:s,partiallyEvaluatedTextSize:e.evaluateSizeForZoom(r.textSizeData,this.transform.zoom),partiallyEvaluatedIconSize:e.evaluateSizeForZoom(r.iconSizeData,this.transform.zoom),collisionGroup:this.collisionGroups.get(r.sourceID)};if(a)for(const e of r.sortKeyRanges){const{sortKey:i,symbolInstanceStart:o,symbolInstanceEnd:a}=e;t.push({sortKey:i,symbolInstanceStart:o,symbolInstanceEnd:a,parameters:g});}else t.push({symbolInstanceStart:0,symbolInstanceEnd:r.symbolInstances.length,parameters:g});}attemptAnchorPlacement(e,t,i,o,a,r,n,s,l,c,h,u,d,_,m,p,f,g){const v=[u.textOffset0,u.textOffset1],x=_.getSymbolInstanceTextSize(f,u,this.transform.zoom,d),y=Te(e,i,o,v,a),b=this.collisionIndex.placeCollisionBox(x,t,Ee(y.x,y.y,r,n,this.transform.angle),h,s,l,c.predicate);if((!p||0!==this.collisionIndex.placeCollisionBox(_.getSymbolInstanceIconSize(g,this.transform.zoom,d),p,Ee(y.x,y.y,r,n,this.transform.angle),h,s,l,c.predicate).box.length)&&b.box.length>0){let t;return this.prevPlacement&&this.prevPlacement.variableOffsets[u.crossTileID]&&this.prevPlacement.placements[u.crossTileID]&&this.prevPlacement.placements[u.crossTileID].text&&(t=this.prevPlacement.variableOffsets[u.crossTileID].anchor),this.variableOffsets[u.crossTileID]={textOffset:v,width:i,height:o,anchor:e,textBoxScale:a,prevAnchor:t},this.markUsedJustification(_,e,u,m),_.allowVerticalPlacement&&(this.markUsedOrientation(_,m,u),this.placedOrientations[u.crossTileID]=m),{shift:y,placedGlyphBoxes:b}}}placeLayerBucketPart(t,i,o){const{bucket:a,layout:r,posMatrix:n,textLabelPlaneMatrix:s,labelToScreenMatrix:l,textPixelRatio:c,holdingForFade:h,collisionBoxArray:u,partiallyEvaluatedTextSize:d,partiallyEvaluatedIconSize:_,collisionGroup:m}=t.parameters,p=r.get("text-optional"),f=r.get("icon-optional"),g=r.get("text-allow-overlap"),v=r.get("icon-allow-overlap"),x="map"===r.get("text-rotation-alignment"),y="map"===r.get("text-pitch-alignment"),b="none"!==r.get("icon-text-fit"),w="viewport-y"===r.get("symbol-z-order"),T=g&&(v||!a.hasIconData()||f),E=v&&(g||!a.hasTextData()||p);!a.collisionArrays&&u&&a.deserializeCollisionBoxes(u),o&&a.updateCollisionDebugBuffers(this.transform.zoom,u);const C=(t,u,w)=>{if(i[t.crossTileID])return;if(h)return void(this.placements[t.crossTileID]=new xe(!1,!1,!1));let C=!1,S=!1,I=!0,P=null,M={box:null,offscreen:null},z={box:null,offscreen:null},A=null,D=null,L=null,R=0,k=0,B=0;w.textFeatureIndex?R=w.textFeatureIndex:t.useRuntimeCollisionCircles&&(R=t.featureIndex),w.verticalTextFeatureIndex&&(k=w.verticalTextFeatureIndex);const F=e=>{(this.transform.elevation||e.elevation)&&(e.elevation=this.transform.elevation?this.transform.elevation.getAtTileOffset(this.retainedQueryData[a.bucketInstanceId].tileID,e.anchorPointX,e.anchorPointY):0);},O=w.textBox;if(O){F(O);const i=i=>{let o=e.WritingMode.horizontal;if(a.allowVerticalPlacement&&!i&&this.prevPlacement){const e=this.prevPlacement.placedOrientations[t.crossTileID];e&&(this.placedOrientations[t.crossTileID]=e,o=e,this.markUsedOrientation(a,o,t));}return o},o=(i,o)=>{if(a.allowVerticalPlacement&&t.numVerticalGlyphVertices>0&&w.verticalTextBox){for(const t of a.writingModes)if(t===e.WritingMode.vertical?(M=o(),z=M):M=i(),M&&M.box&&M.box.length)break}else M=i();};if(r.get("text-variable-anchor")){let s=r.get("text-variable-anchor");if(this.prevPlacement&&this.prevPlacement.variableOffsets[t.crossTileID]){const e=this.prevPlacement.variableOffsets[t.crossTileID];s.indexOf(e.anchor)>0&&(s=s.filter(t=>t!==e.anchor),s.unshift(e.anchor));}const l=(e,i,o)=>{const r=t.textBoxScale,l=(e.x2-e.x1)*r+2*e.padding,h=(e.y2-e.y1)*r+2*e.padding,p=b&&!v?i:null;p&&F(p);let f={box:[],offscreen:!1};const w=g?2*s.length:s.length;for(let i=0;i=s.length,t,u,a,o,p,d,_);if(g&&(f=g.placedGlyphBoxes,f&&f.box&&f.box.length)){C=!0,P=g.shift;break}}return f};o(()=>l(O,w.iconBox,e.WritingMode.horizontal),()=>{const i=w.verticalTextBox;return i&&F(i),a.allowVerticalPlacement&&!(M&&M.box&&M.box.length)&&t.numVerticalGlyphVertices>0&&i?l(i,w.verticalIconBox,e.WritingMode.vertical):{box:null,offscreen:null}}),M&&(C=M.box,I=M.offscreen);const h=i(M&&M.box);if(!C&&this.prevPlacement){const e=this.prevPlacement.variableOffsets[t.crossTileID];e&&(this.variableOffsets[t.crossTileID]=e,this.markUsedJustification(a,e.anchor,t,h));}}else {const r=(i,o)=>{const r=a.getSymbolInstanceTextSize(d,t,this.transform.zoom,u),s=this.collisionIndex.placeCollisionBox(r,i,new e.Point(0,0),g,c,n,m.predicate);return s&&s.box&&s.box.length&&(this.markUsedOrientation(a,o,t),this.placedOrientations[t.crossTileID]=o),s};o(()=>r(O,e.WritingMode.horizontal),()=>{const i=w.verticalTextBox;return a.allowVerticalPlacement&&t.numVerticalGlyphVertices>0&&i?(F(i),r(i,e.WritingMode.vertical)):{box:null,offscreen:null}}),i(M&&M.box&&M.box.length);}}if(A=M,C=A&&A.box&&A.box.length>0,I=A&&A.offscreen,t.useRuntimeCollisionCircles){const i=a.text.placedSymbolArray.get(t.centerJustifiedTextSymbolIndex),c=e.evaluateSizeForFeature(a.textSizeData,d,i),h=r.get("text-padding");D=this.collisionIndex.placeCollisionCircles(g,i,a.lineVertexArray,a.glyphOffsetArray,c,n,s,l,o,y,m.predicate,t.collisionCircleDiameter,h,this.retainedQueryData[a.bucketInstanceId].tileID),C=g||D.circles.length>0&&!D.collisionDetected,I=I&&D.offscreen;}if(w.iconFeatureIndex&&(B=w.iconFeatureIndex),w.iconBox){const t=t=>{F(t);const i=b&&P?Ee(P.x,P.y,x,y,this.transform.angle):new e.Point(0,0),o=a.getSymbolInstanceIconSize(_,this.transform.zoom,u);return this.collisionIndex.placeCollisionBox(o,t,i,v,c,n,m.predicate)};z&&z.box&&z.box.length&&w.verticalIconBox?(L=t(w.verticalIconBox),S=L.box.length>0):(L=t(w.iconBox),S=L.box.length>0),I=I&&L.offscreen;}const U=p||0===t.numHorizontalGlyphVertices&&0===t.numVerticalGlyphVertices,N=f||0===t.numIconVertices;if(U||N?N?U||(S=S&&C):C=S&&C:S=C=S&&C,C&&A&&A.box&&this.collisionIndex.insertCollisionBox(A.box,r.get("text-ignore-placement"),a.bucketInstanceId,z&&z.box&&k?k:R,m.ID),S&&L&&this.collisionIndex.insertCollisionBox(L.box,r.get("icon-ignore-placement"),a.bucketInstanceId,B,m.ID),D&&(C&&this.collisionIndex.insertCollisionCircles(D.circles,r.get("text-ignore-placement"),a.bucketInstanceId,R,m.ID),o)){const e=a.bucketInstanceId;let t=this.collisionCircleArrays[e];void 0===t&&(t=this.collisionCircleArrays[e]=new ye);for(let e=0;e=0;--t){const i=e[t];C(a.symbolInstances.get(i),i,a.collisionArrays[i]);}}else for(let e=t.symbolInstanceStart;e=0&&(t.text.placedSymbolArray.get(e).crossTileID=r>=0&&e!==r?0:o.crossTileID);}markUsedOrientation(t,i,o){const a=i===e.WritingMode.horizontal||i===e.WritingMode.horizontalOnly?i:0,r=i===e.WritingMode.vertical?i:0,n=[o.leftJustifiedTextSymbolIndex,o.centerJustifiedTextSymbolIndex,o.rightJustifiedTextSymbolIndex];for(const e of n)t.text.placedSymbolArray.get(e).placedOrientation=a;o.verticalPlacedTextSymbolIndex&&(t.text.placedSymbolArray.get(o.verticalPlacedTextSymbolIndex).placedOrientation=r);}commit(e){this.commitTime=e,this.zoomAtLastRecencyCheck=this.transform.zoom;const t=this.prevPlacement;let i=!1;this.prevZoomAdjustment=t?t.zoomAdjustment(this.transform.zoom):0;const o=t?t.symbolFadeChange(e):1,a=t?t.opacities:{},r=t?t.variableOffsets:{},n=t?t.placedOrientations:{};for(const e in this.placements){const t=this.placements[e],r=a[e];r?(this.opacities[e]=new ve(r,o,t.text,t.icon),i=i||t.text!==r.text.placed||t.icon!==r.icon.placed):(this.opacities[e]=new ve(null,o,t.text,t.icon,t.skipFade),i=i||t.text||t.icon);}for(const e in a){const t=a[e];if(!this.opacities[e]){const a=new ve(t,o,!1,!1);a.isHidden()||(this.opacities[e]=a,i=i||t.text.placed||t.icon.placed);}}for(const e in r)this.variableOffsets[e]||!this.opacities[e]||this.opacities[e].isHidden()||(this.variableOffsets[e]=r[e]);for(const e in n)this.placedOrientations[e]||!this.opacities[e]||this.opacities[e].isHidden()||(this.placedOrientations[e]=n[e]);i?this.lastPlacementChangeTime=e:"number"!=typeof this.lastPlacementChangeTime&&(this.lastPlacementChangeTime=t?t.lastPlacementChangeTime:e);}updateLayerOpacities(e,t){const i={};for(const o of t){const t=o.getBucket(e);t&&o.latestFeatureIndex&&e.id===t.layerIds[0]&&this.updateBucketOpacities(t,i,o.collisionBoxArray);}}updateBucketOpacities(t,i,o){t.hasTextData()&&t.text.opacityVertexArray.clear(),t.hasIconData()&&t.icon.opacityVertexArray.clear(),t.hasIconCollisionBoxData()&&t.iconCollisionBox.collisionVertexArray.clear(),t.hasTextCollisionBoxData()&&t.textCollisionBox.collisionVertexArray.clear();const a=t.layers[0].layout,r=new ve(null,0,!1,!1,!0),n=a.get("text-allow-overlap"),s=a.get("icon-allow-overlap"),l=a.get("text-variable-anchor"),c="map"===a.get("text-rotation-alignment"),h="map"===a.get("text-pitch-alignment"),u="none"!==a.get("icon-text-fit"),d=new ve(null,0,n&&(s||!t.hasIconData()||a.get("icon-optional")),s&&(n||!t.hasTextData()||a.get("text-optional")),!0);!t.collisionArrays&&o&&(t.hasIconCollisionBoxData()||t.hasTextCollisionBoxData())&&t.deserializeCollisionBoxes(o);const _=(e,t,i)=>{for(let o=0;o0,g=this.placedOrientations[a.crossTileID],v=g===e.WritingMode.vertical,x=g===e.WritingMode.horizontal||g===e.WritingMode.horizontalOnly;if(n>0||s>0){const e=Re(p.text);_(t.text,n,v?ke:e),_(t.text,s,x?ke:e);const i=p.text.isHidden();[a.rightJustifiedTextSymbolIndex,a.centerJustifiedTextSymbolIndex,a.leftJustifiedTextSymbolIndex].forEach(e=>{e>=0&&(t.text.placedSymbolArray.get(e).hidden=i||v?1:0);}),a.verticalPlacedTextSymbolIndex>=0&&(t.text.placedSymbolArray.get(a.verticalPlacedTextSymbolIndex).hidden=i||x?1:0);const o=this.variableOffsets[a.crossTileID];o&&this.markUsedJustification(t,o.anchor,a,g);const r=this.placedOrientations[a.crossTileID];r&&(this.markUsedJustification(t,"left",a,r),this.markUsedOrientation(t,r,a));}if(f){const e=Re(p.icon),i=!(u&&a.verticalPlacedIconSymbolIndex&&v);a.placedIconSymbolIndex>=0&&(_(t.icon,a.numIconVertices,i?e:ke),t.icon.placedSymbolArray.get(a.placedIconSymbolIndex).hidden=p.icon.isHidden()),a.verticalPlacedIconSymbolIndex>=0&&(_(t.icon,a.numVerticalIconVertices,i?ke:e),t.icon.placedSymbolArray.get(a.verticalPlacedIconSymbolIndex).hidden=p.icon.isHidden());}if(t.hasIconCollisionBoxData()||t.hasTextCollisionBoxData()){const i=t.collisionArrays[o];if(i){let o=new e.Point(0,0);if(i.textBox||i.verticalTextBox){let e=!0;if(l){const t=this.variableOffsets[m];t?(o=Te(t.anchor,t.width,t.height,t.textOffset,t.textBoxScale),c&&o._rotate(h?this.transform.angle:-this.transform.angle)):e=!1;}i.textBox&&Se(t.textCollisionBox.collisionVertexArray,p.text.placed,!e||v,o.x,o.y),i.verticalTextBox&&Se(t.textCollisionBox.collisionVertexArray,p.text.placed,!e||x,o.x,o.y);}const a=Boolean(!x&&i.verticalIconBox);i.iconBox&&Se(t.iconCollisionBox.collisionVertexArray,p.icon.placed,a,u?o.x:0,u?o.y:0),i.verticalIconBox&&Se(t.iconCollisionBox.collisionVertexArray,p.icon.placed,!a,u?o.x:0,u?o.y:0);}}}if(t.sortFeatures(this.transform.angle),this.retainedQueryData[t.bucketInstanceId]&&(this.retainedQueryData[t.bucketInstanceId].featureSortOrder=t.featureSortOrder),t.hasTextData()&&t.text.opacityVertexBuffer&&t.text.opacityVertexBuffer.updateData(t.text.opacityVertexArray),t.hasIconData()&&t.icon.opacityVertexBuffer&&t.icon.opacityVertexBuffer.updateData(t.icon.opacityVertexArray),t.hasIconCollisionBoxData()&&t.iconCollisionBox.collisionVertexBuffer&&t.iconCollisionBox.collisionVertexBuffer.updateData(t.iconCollisionBox.collisionVertexArray),t.hasTextCollisionBoxData()&&t.textCollisionBox.collisionVertexBuffer&&t.textCollisionBox.collisionVertexBuffer.updateData(t.textCollisionBox.collisionVertexArray),t.bucketInstanceId in this.collisionCircleArrays){const e=this.collisionCircleArrays[t.bucketInstanceId];t.placementInvProjMatrix=e.invProjMatrix,t.placementViewportMatrix=e.viewportMatrix,t.collisionCircleArray=e.circles,delete this.collisionCircleArrays[t.bucketInstanceId];}}symbolFadeChange(e){return 0===this.fadeDuration?1:(e-this.commitTime)/this.fadeDuration+this.prevZoomAdjustment}zoomAdjustment(e){return Math.max(0,(this.transform.zoom-e)/1.5)}hasTransitions(e){return this.stale||e-this.lastPlacementChangeTimee}setStale(){this.stale=!0;}}function Se(e,t,i,o,a){e.emplaceBack(t?1:0,i?1:0,o||0,a||0),e.emplaceBack(t?1:0,i?1:0,o||0,a||0),e.emplaceBack(t?1:0,i?1:0,o||0,a||0),e.emplaceBack(t?1:0,i?1:0,o||0,a||0);}const Ie=Math.pow(2,25),Pe=Math.pow(2,24),Me=Math.pow(2,17),ze=Math.pow(2,16),Ae=Math.pow(2,9),De=Math.pow(2,8),Le=Math.pow(2,1);function Re(e){if(0===e.opacity&&!e.placed)return 0;if(1===e.opacity&&e.placed)return 4294967295;const t=e.placed?1:0,i=Math.floor(127*e.opacity);return i*Ie+t*Pe+i*Me+t*ze+i*Ae+t*De+i*Le+t}const ke=0;class Be{constructor(e){this._sortAcrossTiles="viewport-y"!==e.layout.get("symbol-z-order")&&void 0!==e.layout.get("symbol-sort-key").constantOr(1),this._currentTileIndex=0,this._currentPartIndex=0,this._seenCrossTileIDs={},this._bucketParts=[];}continuePlacement(e,t,i,o,a){const r=this._bucketParts;for(;this._currentTileIndexe.sortKey-t.sortKey));this._currentPartIndex{const t=e.browser.now()-a;return !this._forceFullPlacement&&t>2};for(;this._currentPlacementIndex>=0;){const e=i[t[this._currentPlacementIndex]],a=this.placement.collisionIndex.transform.zoom;if("symbol"===e.type&&(!e.minzoom||e.minzoom<=a)&&(!e.maxzoom||e.maxzoom>a)){if(this._inProgressLayer||(this._inProgressLayer=new Be(e)),this._inProgressLayer.continuePlacement(o[e.source],this.placement,this._showCollisionBoxes,e,r))return;delete this._inProgressLayer;}this._currentPlacementIndex--;}this._done=!0;}commit(e){return this.placement.commit(e),this.placement}}const Oe=512/e.EXTENT/2;class Ue{constructor(e,t,i){this.tileID=e,this.indexedSymbolInstances={},this.bucketInstanceId=i;for(let i=0;ie.overscaledZ)for(const i in a){const r=a[i];r.tileID.isChildOf(e)&&r.findMatches(t.symbolInstances,e,o);}else {const r=a[e.scaledTo(Number(i)).key];r&&r.findMatches(t.symbolInstances,e,o);}}for(let e=0;e{t[e]=!0;});for(const e in this.layerIndexes)t[e]||delete this.layerIndexes[e];}}const qe=(t,i)=>e.emitValidationErrors(t,i&&i.filter(e=>"source.canvas"!==e.identifier)),Ve=e.pick(j,["addLayer","removeLayer","setPaintProperty","setLayoutProperty","setFilter","addSource","removeSource","setLayerZoomRange","setLight","setTransition","setGeoJSONSourceData","setTerrain"]),$e=e.pick(j,["setCenter","setZoom","setBearing","setPitch"]),je=function(){const t={},i=e.styleSpec.$version;for(const o in e.styleSpec.$root){const a=e.styleSpec.$root[o];if(a.required){let e=null;e="version"===o?i:"array"===a.type?[]:{},null!=e&&(t[o]=e);}}return t}();class We extends e.Evented{constructor(t,i={}){super(),this.map=t,this.dispatcher=new E(q(),this),this.imageManager=new u,this.imageManager.setEventedParent(this),this.glyphManager=new v(t._requestManager,i.localIdeographFontFamily),this.lineAtlas=new T(256,512),this.crossTileSymbolIndex=new Ge,this._layers={},this._num3DLayers=0,this._serializedLayers={},this._order=[],this._sourceCaches={},this._otherSourceCaches={},this._symbolSourceCaches={},this.zoomHistory=new e.ZoomHistory,this._loaded=!1,this._availableImages=[],this._resetUpdates(),this.dispatcher.broadcast("setReferrer",e.getReferrer());const o=this;this._rtlTextPluginCallback=We.registerForPluginStateChange(t=>{o.dispatcher.broadcast("syncRTLPluginState",{pluginStatus:t.pluginStatus,pluginURL:t.pluginURL},(t,i)=>{if(e.triggerPluginCompletionEvent(t),i&&i.every(e=>e))for(const e in o._sourceCaches){const t=o._sourceCaches[e],i=t.getSource().type;"vector"!==i&&"geojson"!==i||t.reload();}});}),this.on("data",e=>{if("source"!==e.dataType||"metadata"!==e.sourceDataType)return;const t=this.getSource(e.sourceId);if(t&&t.vectorLayerIds)for(const e in this._layers){const i=this._layers[e];i.source===t.id&&this._validateLayer(i);}});}loadURL(t,i={}){this.fire(new e.Event("dataloading",{dataType:"style"}));const o="boolean"==typeof i.validate?i.validate:!e.isMapboxURL(t);t=this.map._requestManager.normalizeStyleURL(t,i.accessToken);const a=this.map._requestManager.transformRequest(t,e.ResourceType.Style);this._request=e.getJSON(a,(t,i)=>{this._request=null,t?this.fire(new e.ErrorEvent(t)):i&&this._load(i,o);});}loadJSON(t,i={}){this.fire(new e.Event("dataloading",{dataType:"style"})),this._request=e.browser.frame(()=>{this._request=null,this._load(t,!1!==i.validate);});}loadEmpty(){this.fire(new e.Event("dataloading",{dataType:"style"})),this._load(je,!1);}_load(t,i){if(i&&qe(this,e.validateStyle(t)))return;this._loaded=!0,this.stylesheet=t;for(const e in t.sources)this.addSource(e,t.sources[e],{validate:!1});this._changed=!1,t.sprite?this._loadSprite(t.sprite):this.imageManager.setLoaded(!0),this.glyphManager.setURL(t.glyphs);const o=$(this.stylesheet.layers);this._order=o.map(e=>e.id),this._layers={},this._serializedLayers={};for(let t of o)t=e.createStyleLayer(t),t.setEventedParent(this,{layer:{id:t.id}}),this._layers[t.id]=t,this._serializedLayers[t.id]=t.serialize(),t.is3D()&&this._num3DLayers++;this.dispatcher.broadcast("setLayers",this._serializeLayers(this._order)),this.light=new y(this.stylesheet.light),this.stylesheet.terrain&&this._createTerrain(this.stylesheet.terrain),this.fire(new e.Event("data",{dataType:"style"})),this.fire(new e.Event("style.load"));}_loadSprite(t){this._spriteRequest=function(t,i,o){let a,r,n;const s=e.browser.devicePixelRatio>1?"@2x":"";let l=e.getJSON(i.transformRequest(i.normalizeSpriteURL(t,s,".json"),e.ResourceType.SpriteJSON),(e,t)=>{l=null,n||(n=e,a=t,h());}),c=e.getImage(i.transformRequest(i.normalizeSpriteURL(t,s,".png"),e.ResourceType.SpriteImage),(e,t)=>{c=null,n||(n=e,r=t,h());});function h(){if(n)o(n);else if(a&&r){const t=e.browser.getImageData(r),i={};for(const o in a){const{width:r,height:n,x:s,y:l,sdf:c,pixelRatio:h,stretchX:u,stretchY:d,content:_}=a[o],m=new e.RGBAImage({width:r,height:n});e.RGBAImage.copy(t,m,{x:s,y:l},{x:0,y:0},{width:r,height:n}),i[o]={data:m,pixelRatio:h,sdf:c,stretchX:u,stretchY:d,content:_};}o(null,i);}}return {cancel(){l&&(l.cancel(),l=null),c&&(c.cancel(),c=null);}}}(t,this.map._requestManager,(t,i)=>{if(this._spriteRequest=null,t)this.fire(new e.ErrorEvent(t));else if(i)for(const e in i)this.imageManager.addImage(e,i[e]);this.imageManager.setLoaded(!0),this._availableImages=this.imageManager.listImages(),this.dispatcher.broadcast("setImages",this._availableImages),this.fire(new e.Event("data",{dataType:"style"}));});}_validateLayer(t){const i=this.getSource(t.source);if(!i)return;const o=t.sourceLayer;o&&("geojson"===i.type||i.vectorLayerIds&&-1===i.vectorLayerIds.indexOf(o))&&this.fire(new e.ErrorEvent(new Error(`Source layer "${o}" `+`does not exist on source "${i.id}" `+`as specified by style layer "${t.id}"`)));}loaded(){if(!this._loaded)return !1;if(Object.keys(this._updatedSources).length)return !1;for(const e in this._sourceCaches)if(!this._sourceCaches[e].loaded())return !1;return !!this.imageManager.isLoaded()}_serializeLayers(e){const t=[];for(const i of e){const e=this._layers[i];"custom"!==e.type&&t.push(e.serialize());}return t}hasTransitions(){if(this.light&&this.light.hasTransition())return !0;for(const e in this._sourceCaches)if(this._sourceCaches[e].hasTransition())return !0;for(const e in this._layers)if(this._layers[e].hasTransition())return !0;return !1}_checkLoaded(){if(!this._loaded)throw new Error("Style is not done loading")}update(t){if(!this._loaded)return;const i=this._changed;if(this._changed){const e=Object.keys(this._updatedLayers),i=Object.keys(this._removedLayers);(e.length||i.length)&&this._updateWorkerLayers(e,i);for(const e in this._updatedSources){const t=this._updatedSources[e];"reload"===t?this._reloadSource(e):"clear"===t&&this._clearSource(e);}this._updateTilesForChangedImages();for(const e in this._updatedPaintProps)this._layers[e].updateTransitions(t);this.light.updateTransitions(t),this._resetUpdates();}const o={};for(const e in this._sourceCaches){const t=this._sourceCaches[e];o[e]=t.used,t.used=!1;}for(const e of this._order){const i=this._layers[e];if(i.recalculate(t,this._availableImages),!i.isHidden(t.zoom)){const e=this._getLayerSourceCache(i);e&&(e.used=!0);}const o=this.map.painter;if(o){const e=i.getProgramIds();if(!e)continue;const a=i.getProgramConfiguration(t.zoom);for(const t of e)o.useProgram(t,a);}}for(const t in o){const i=this._sourceCaches[t];o[t]!==i.used&&i.getSource().fire(new e.Event("data",{sourceDataType:"visibility",dataType:"source",sourceId:i.getSource().id}));}this.light.recalculate(t),this.terrain&&this.terrain.recalculate(t),this.z=t.zoom,i&&this.fire(new e.Event("data",{dataType:"style"}));}_updateTilesForChangedImages(){const e=Object.keys(this._changedImages);if(e.length){for(const t in this._sourceCaches)this._sourceCaches[t].reloadTilesForDependencies(["icons","patterns"],e);this._changedImages={};}}_updateWorkerLayers(e,t){this.dispatcher.broadcast("updateLayers",{layers:this._serializeLayers(e),removedIds:t});}_resetUpdates(){this._changed=!1,this._updatedLayers={},this._removedLayers={},this._updatedSources={},this._updatedPaintProps={},this._changedImages={};}setState(t){if(this._checkLoaded(),qe(this,e.validateStyle(t)))return !1;(t=e.clone$1(t)).layers=$(t.layers);const i=function(t,i){if(!t)return [{command:j.setStyle,args:[i]}];let o=[];try{if(!e.deepEqual(t.version,i.version))return [{command:j.setStyle,args:[i]}];e.deepEqual(t.center,i.center)||o.push({command:j.setCenter,args:[i.center]}),e.deepEqual(t.zoom,i.zoom)||o.push({command:j.setZoom,args:[i.zoom]}),e.deepEqual(t.bearing,i.bearing)||o.push({command:j.setBearing,args:[i.bearing]}),e.deepEqual(t.pitch,i.pitch)||o.push({command:j.setPitch,args:[i.pitch]}),e.deepEqual(t.sprite,i.sprite)||o.push({command:j.setSprite,args:[i.sprite]}),e.deepEqual(t.glyphs,i.glyphs)||o.push({command:j.setGlyphs,args:[i.glyphs]}),e.deepEqual(t.transition,i.transition)||o.push({command:j.setTransition,args:[i.transition]}),e.deepEqual(t.light,i.light)||o.push({command:j.setLight,args:[i.light]}),e.deepEqual(t.terrain,i.terrain)||o.push({command:j.setTerrain,args:[i.terrain]});const a={},r=[];!function(t,i,o,a){let r;for(r in i=i||{},t=t||{})t.hasOwnProperty(r)&&(i.hasOwnProperty(r)||X(r,o,a));for(r in i)i.hasOwnProperty(r)&&(t.hasOwnProperty(r)?e.deepEqual(t[r],i[r])||("geojson"===t[r].type&&"geojson"===i[r].type&&K(t,i,r)?o.push({command:j.setGeoJSONSourceData,args:[r,i[r].data]}):H(r,i,o,a)):W(r,i,o));}(t.sources,i.sources,r,a);const n=[];t.layers&&t.layers.forEach(e=>{a[e.source]?o.push({command:j.removeLayer,args:[e.id]}):n.push(e);}),o=o.concat(r),function(t,i,o){i=i||[];const a=(t=t||[]).map(J),r=i.map(J),n=t.reduce(Q,{}),s=i.reduce(Q,{}),l=a.slice(),c=Object.create(null);let h,u,d,_,m,p,f;for(h=0,u=0;h!(e.command in $e));if(0===i.length)return !1;const o=i.filter(e=>!(e.command in Ve));if(o.length>0)throw new Error(`Unimplemented: ${o.map(e=>e.command).join(", ")}.`);return i.forEach(e=>{"setTransition"!==e.command&&this[e.command].apply(this,e.args);}),this.stylesheet=t,!0}addImage(t,i){if(this.getImage(t))return this.fire(new e.ErrorEvent(new Error("An image with this name already exists.")));this.imageManager.addImage(t,i),this._afterImageUpdated(t);}updateImage(e,t){this.imageManager.updateImage(e,t);}getImage(e){return this.imageManager.getImage(e)}removeImage(t){if(!this.getImage(t))return this.fire(new e.ErrorEvent(new Error("No image with this name exists.")));this.imageManager.removeImage(t),this._afterImageUpdated(t);}_afterImageUpdated(t){this._availableImages=this.imageManager.listImages(),this._changedImages[t]=!0,this._changed=!0,this.dispatcher.broadcast("setImages",this._availableImages),this.fire(new e.Event("data",{dataType:"style"}));}listImages(){return this._checkLoaded(),this.imageManager.listImages()}addSource(t,i,o={}){if(this._checkLoaded(),void 0!==this.getSource(t))throw new Error("There is already a source with this ID");if(!i.type)throw new Error(`The type property must be defined, but only the following properties were given: ${Object.keys(i).join(", ")}.`);if(["vector","raster","geojson","video","image"].indexOf(i.type)>=0&&this._validate(e.validateStyle.source,`sources.${t}`,i,null,o))return;this.map&&this.map._collectResourceTiming&&(i.collectResourceTiming=!0);const a=R(t,i,this.dispatcher,this);a.setEventedParent(this,()=>({isSourceLoaded:this.loaded(),source:a.serialize(),sourceId:t}));const r=i=>{const o=(i?"symbol:":"other:")+t,r=this._sourceCaches[o]=new e.SourceCache(o,a,i);(i?this._symbolSourceCaches:this._otherSourceCaches)[t]=r,r.style=this,r.onAdd(this.map);};r(!1),"vector"!==i.type&&"geojson"!==i.type||r(!0),a.onAdd&&a.onAdd(this.map),this._changed=!0;}removeSource(t){this._checkLoaded();const i=this.getSource(t);if(void 0===i)throw new Error("There is no source with this ID");for(const i in this._layers)if(this._layers[i].source===t)return this.fire(new e.ErrorEvent(new Error(`Source "${t}" cannot be removed while layer "${i}" is using it.`)));if(this.terrain&&this.terrain.get().source===t)return this.fire(new e.ErrorEvent(new Error(`Source "${t}" cannot be removed while terrain is using it.`)));const o=this._getSourceCaches(t);for(const t of o)delete this._sourceCaches[t.id],delete this._updatedSources[t.id],t.fire(new e.Event("data",{sourceDataType:"metadata",dataType:"source",sourceId:t.getSource().id})),t.setEventedParent(null),t.clearTiles();delete this._otherSourceCaches[t],delete this._symbolSourceCaches[t],i.setEventedParent(null),i.onRemove&&i.onRemove(this.map),this._changed=!0;}setGeoJSONSourceData(e,t){this._checkLoaded(),this.getSource(e).setData(t),this._changed=!0;}getSource(e){const t=this._getSourceCache(e);return t&&t.getSource()}addLayer(t,i,o={}){this._checkLoaded();const a=t.id;if(this.getLayer(a))return void this.fire(new e.ErrorEvent(new Error(`Layer with id "${a}" already exists on this map`)));let r;if("custom"===t.type){if(qe(this,e.validateCustomStyleLayer(t)))return;r=e.createStyleLayer(t);}else {if("object"==typeof t.source&&(this.addSource(a,t.source),t=e.clone$1(t),t=e.extend(t,{source:a})),this._validate(e.validateStyle.layer,`layers.${a}`,t,{arrayIndex:-1},o))return;r=e.createStyleLayer(t),this._validateLayer(r),r.setEventedParent(this,{layer:{id:a}}),this._serializedLayers[r.id]=r.serialize(),r.is3D()&&this._num3DLayers++;}const n=i?this._order.indexOf(i):this._order.length;if(i&&-1===n)return void this.fire(new e.ErrorEvent(new Error(`Layer with id "${i}" does not exist on this map.`)));this._order.splice(n,0,a),this._layerOrderChanged=!0,this._layers[a]=r;const s=this._getLayerSourceCache(r);if(this._removedLayers[a]&&r.source&&s&&"custom"!==r.type){const e=this._removedLayers[a];delete this._removedLayers[a],e.type!==r.type?this._updatedSources[r.source]="clear":(this._updatedSources[r.source]="reload",s.pause());}this._updateLayer(r),r.onAdd&&r.onAdd(this.map);}moveLayer(t,i){if(this._checkLoaded(),this._changed=!0,!this._layers[t])return void this.fire(new e.ErrorEvent(new Error(`The layer '${t}' does not exist in the map's style and cannot be moved.`)));if(t===i)return;const o=this._order.indexOf(t);this._order.splice(o,1);const a=i?this._order.indexOf(i):this._order.length;i&&-1===a?this.fire(new e.ErrorEvent(new Error(`Layer with id "${i}" does not exist on this map.`))):(this._order.splice(a,0,t),this._layerOrderChanged=!0);}removeLayer(t){this._checkLoaded();const i=this._layers[t];if(!i)return void this.fire(new e.ErrorEvent(new Error(`The layer '${t}' does not exist in the map's style and cannot be removed.`)));i.setEventedParent(null),i.is3D()&&this._num3DLayers--;const o=this._order.indexOf(t);this._order.splice(o,1),this._layerOrderChanged=!0,this._changed=!0,this._removedLayers[t]=i,delete this._layers[t],delete this._serializedLayers[t],delete this._updatedLayers[t],delete this._updatedPaintProps[t],i.onRemove&&i.onRemove(this.map);}getLayer(e){return this._layers[e]}hasLayer(e){return e in this._layers}setLayerZoomRange(t,i,o){this._checkLoaded();const a=this.getLayer(t);a?a.minzoom===i&&a.maxzoom===o||(null!=i&&(a.minzoom=i),null!=o&&(a.maxzoom=o),this._updateLayer(a)):this.fire(new e.ErrorEvent(new Error(`The layer '${t}' does not exist in the map's style and cannot have zoom extent.`)));}setFilter(t,i,o={}){this._checkLoaded();const a=this.getLayer(t);if(a){if(!e.deepEqual(a.filter,i))return null==i?(a.filter=void 0,void this._updateLayer(a)):void(this._validate(e.validateStyle.filter,`layers.${a.id}.filter`,i,null,o)||(a.filter=e.clone$1(i),this._updateLayer(a)))}else this.fire(new e.ErrorEvent(new Error(`The layer '${t}' does not exist in the map's style and cannot be filtered.`)));}getFilter(t){return e.clone$1(this.getLayer(t).filter)}setLayoutProperty(t,i,o,a={}){this._checkLoaded();const r=this.getLayer(t);r?e.deepEqual(r.getLayoutProperty(i),o)||(r.setLayoutProperty(i,o,a),this._updateLayer(r)):this.fire(new e.ErrorEvent(new Error(`The layer '${t}' does not exist in the map's style and cannot be styled.`)));}getLayoutProperty(t,i){const o=this.getLayer(t);if(o)return o.getLayoutProperty(i);this.fire(new e.ErrorEvent(new Error(`The layer '${t}' does not exist in the map's style.`)));}setPaintProperty(t,i,o,a={}){this._checkLoaded();const r=this.getLayer(t);r?e.deepEqual(r.getPaintProperty(i),o)||(r.setPaintProperty(i,o,a)&&this._updateLayer(r),this._changed=!0,this._updatedPaintProps[t]=!0):this.fire(new e.ErrorEvent(new Error(`The layer '${t}' does not exist in the map's style and cannot be styled.`)));}getPaintProperty(e,t){return this.getLayer(e).getPaintProperty(t)}setFeatureState(t,i){this._checkLoaded();const o=t.source,a=t.sourceLayer,r=this.getSource(o);if(void 0===r)return void this.fire(new e.ErrorEvent(new Error(`The source '${o}' does not exist in the map's style.`)));const n=r.type;if("geojson"===n&&a)return void this.fire(new e.ErrorEvent(new Error("GeoJSON sources cannot have a sourceLayer parameter.")));if("vector"===n&&!a)return void this.fire(new e.ErrorEvent(new Error("The sourceLayer parameter must be provided for vector source types.")));void 0===t.id&&this.fire(new e.ErrorEvent(new Error("The feature id parameter must be provided.")));const s=this._getSourceCaches(o);for(const e of s)e.setFeatureState(a,t.id,i);}removeFeatureState(t,i){this._checkLoaded();const o=t.source,a=this.getSource(o);if(void 0===a)return void this.fire(new e.ErrorEvent(new Error(`The source '${o}' does not exist in the map's style.`)));const r=a.type,n="vector"===r?t.sourceLayer:void 0;if("vector"===r&&!n)return void this.fire(new e.ErrorEvent(new Error("The sourceLayer parameter must be provided for vector source types.")));if(i&&"string"!=typeof t.id&&"number"!=typeof t.id)return void this.fire(new e.ErrorEvent(new Error("A feature id is required to remove its specific state property.")));const s=this._getSourceCaches(o);for(const e of s)e.removeFeatureState(n,t.id,i);}getFeatureState(t){this._checkLoaded();const i=t.source,o=t.sourceLayer,a=this.getSource(i);if(void 0!==a){if("vector"!==a.type||o)return void 0===t.id&&this.fire(new e.ErrorEvent(new Error("The feature id parameter must be provided."))),this._getSourceCaches(i)[0].getFeatureState(o,t.id);this.fire(new e.ErrorEvent(new Error("The sourceLayer parameter must be provided for vector source types.")));}else this.fire(new e.ErrorEvent(new Error(`The source '${i}' does not exist in the map's style.`)));}getTransition(){return e.extend({duration:300,delay:0},this.stylesheet&&this.stylesheet.transition)}serialize(){const t={};for(const e in this._sourceCaches){const i=this._sourceCaches[e].getSource();t[i.id]||(t[i.id]=i.serialize());}return e.filterObject({version:this.stylesheet.version,name:this.stylesheet.name,metadata:this.stylesheet.metadata,light:this.stylesheet.light,terrain:this.stylesheet.terrain,center:this.stylesheet.center,zoom:this.stylesheet.zoom,bearing:this.stylesheet.bearing,pitch:this.stylesheet.pitch,sprite:this.stylesheet.sprite,glyphs:this.stylesheet.glyphs,transition:this.stylesheet.transition,sources:t,layers:this._serializeLayers(this._order)},e=>void 0!==e)}_updateLayer(e){this._updatedLayers[e.id]=!0;const t=this._getLayerSourceCache(e);e.source&&!this._updatedSources[e.source]&&t&&"raster"!==t.getSource().type&&(this._updatedSources[e.source]="reload",t.pause()),this._changed=!0;}_flattenAndSortRenderedFeatures(e){const t=e=>"fill-extrusion"===this._layers[e].type,i={},o=[];for(let a=this._order.length-1;a>=0;a--){const r=this._order[a];if(t(r)){i[r]=a;for(const t of e){const e=t[r];if(e)for(const t of e)o.push(t);}}}o.sort((e,t)=>t.intersectionZ-e.intersectionZ);const a=[];for(let r=this._order.length-1;r>=0;r--){const n=this._order[r];if(t(n))for(let e=o.length-1;e>=0;e--){const t=o[e].feature;if(i[t.layer.id]{const t=this.getLayer(e);return t&&t.is3D()}):this.has3DLayers(),s=S.createFromScreenPoints(t,o);for(const e in this._sourceCaches){const t=this._sourceCaches[e].getSource().id;i.layers&&!a[t]||r.push(B(this._sourceCaches[e],this._layers,this._serializedLayers,s,i,o,n,!!this.map._showQueryGeometry));}return this.placement&&r.push(function(e,t,i,o,a,r,n){const s={},l=r.queryRenderedSymbols(o),c=[];for(const e of Object.keys(l).map(Number))c.push(n[e]);c.sort(O);for(const i of c){const o=i.featureIndex.lookupSymbolFeatures(l[i.bucketInstanceId],t,i.bucketIndex,i.sourceLayerIndex,a.filter,a.layers,a.availableImages,e);for(const e in o){const t=s[e]=s[e]||[],a=o[e];a.sort((e,t)=>{const o=i.featureSortOrder;if(o){const i=o.indexOf(e.featureIndex);return o.indexOf(t.featureIndex)-i}return t.featureIndex-e.featureIndex});for(const e of a)t.push(e);}}for(const t in s)s[t].forEach(o=>{const a=o.feature,r=i(e[t]).getFeatureState(a.layer["source-layer"],a.id);a.source=a.layer.source,a.layer["source-layer"]&&(a.sourceLayer=a.layer["source-layer"]),a.state=r;});return s}(this._layers,this._serializedLayers,this._getLayerSourceCache.bind(this),s.screenGeometry,i,this.placement.collisionIndex,this.placement.retainedQueryData)),this._flattenAndSortRenderedFeatures(r)}querySourceFeatures(t,i){i&&i.filter&&this._validate(e.validateStyle.filter,"querySourceFeatures.filter",i.filter,null,i);const o=this._getSourceCaches(t);let a=[];for(const e of o)a=a.concat(F(e,i));return a}addSourceType(e,t,i){return We.getSourceType(e)?i(new Error(`A source type called "${e}" already exists.`)):(We.setSourceType(e,t),t.workerSourceURL?void this.dispatcher.broadcast("loadWorkerSource",{name:e,url:t.workerSourceURL},i):i(null,null))}getLight(){return this.light.getLight()}setLight(t,i={}){this._checkLoaded();const o=this.light.getLight();let a=!1;for(const i in t)if(!e.deepEqual(t[i],o[i])){a=!0;break}if(!a)return;const r={now:e.browser.now(),transition:e.extend({duration:300,delay:0},this.stylesheet.transition)};this.light.setLight(t,i),this.light.updateTransitions(r);}setTerrain(t){if(this._checkLoaded(),!t)return delete this.terrain,delete this.stylesheet.terrain,this.dispatcher.broadcast("enableTerrain",!1),void this._force3DLayerUpdate();if("object"==typeof t.source){const i="terrain-dem-src";this.addSource(i,t.source),t=e.clone$1(t),t=e.extend(t,{source:i});}if(!this._validate(e.validateStyle.terrain,"terrain",t))if(this.terrain){const i=this.terrain,o=i.get();for(const a in t)if(!e.deepEqual(t[a],o[a])){i.set(t),this.stylesheet.terrain=t;const o={now:e.browser.now(),transition:e.extend({duration:0},this.stylesheet.transition)};i.updateTransitions(o);break}}else this._createTerrain(t);}_createTerrain(t){const i=this.terrain=new w(t);this.stylesheet.terrain=t,this.dispatcher.broadcast("enableTerrain",!0),this._force3DLayerUpdate();const o={now:e.browser.now(),transition:e.extend({duration:0},this.stylesheet.transition)};i.updateTransitions(o);}_force3DLayerUpdate(){for(const e in this._layers){const t=this._layers[e];"fill-extrusion"===t.type&&this._updateLayer(t);}}_validate(t,i,o,a,r={}){return (!r||!1!==r.validate)&&qe(this,t.call(e.validateStyle,e.extend({key:i,style:this.serialize(),value:o,styleSpec:e.styleSpec},a)))}_remove(){this._request&&(this._request.cancel(),this._request=null),this._spriteRequest&&(this._spriteRequest.cancel(),this._spriteRequest=null),e.evented.off("pluginStateChange",this._rtlTextPluginCallback);for(const e in this._layers)this._layers[e].setEventedParent(null);for(const e in this._sourceCaches)this._sourceCaches[e].clearTiles(),this._sourceCaches[e].setEventedParent(null);this.imageManager.setEventedParent(null),this.setEventedParent(null),this.dispatcher.remove();}_clearSource(e){const t=this._getSourceCaches(e);for(const e of t)e.clearTiles();}_reloadSource(e){const t=this._getSourceCaches(e);for(const e of t)e.resume(),e.reload();}_updateSources(e){for(const t in this._sourceCaches)this._sourceCaches[t].update(e);}_generateCollisionBoxes(){for(const e in this._sourceCaches){const t=this._sourceCaches[e];t.resume(),t.reload();}}_updatePlacement(t,i,o,a,r=!1){let n=!1,s=!1;const l={};for(const e of this._order){const i=this._layers[e];if("symbol"!==i.type)continue;if(!l[i.source]){const e=this._getLayerSourceCache(i);if(!e)continue;l[i.source]=e.getRenderableIds(!0).map(t=>e.getTileByID(t)).sort((e,t)=>t.tileID.overscaledZ-e.tileID.overscaledZ||(e.tileID.isLessThan(t.tileID)?-1:1));}const o=this.crossTileSymbolIndex.addLayer(i,l[i.source],t.center.lng);n=n||o;}if(this.crossTileSymbolIndex.pruneUnusedLayers(this._order),((r=r||this._layerOrderChanged||0===o)||!this.pauseablePlacement||this.pauseablePlacement.isDone()&&!this.placement.stillRecent(e.browser.now(),t.zoom))&&(this.pauseablePlacement=new Fe(t,this._order,r,i,o,a,this.placement),this._layerOrderChanged=!1),this.pauseablePlacement.isDone()?this.placement.setStale():(this.pauseablePlacement.continuePlacement(this._order,this._layers,l),this.pauseablePlacement.isDone()&&(this.placement=this.pauseablePlacement.commit(e.browser.now()),s=!0),n&&this.pauseablePlacement.placement.setStale()),s||n)for(const e of this._order){const t=this._layers[e];"symbol"===t.type&&this.placement.updateLayerOpacities(t,l[t.source]);}return !this.pauseablePlacement.isDone()||this.placement.hasTransitions(e.browser.now())}_releaseSymbolFadeTiles(){for(const e in this._sourceCaches)this._sourceCaches[e].releaseSymbolFadeTiles();}getImages(e,t,i){this.imageManager.getImages(t.icons,i),this._updateTilesForChangedImages();const o=e=>{e&&e.setDependencies(t.tileID.key,t.type,t.icons);};o(this._otherSourceCaches[t.source]),o(this._symbolSourceCaches[t.source]);}getGlyphs(e,t,i){this.glyphManager.getGlyphs(t.stacks,i);}getResource(t,i,o){return e.makeRequest(i,o)}_getSourceCache(e){return this._otherSourceCaches[e]}_getLayerSourceCache(e){return "symbol"===e.type?this._symbolSourceCaches[e.source]:this._otherSourceCaches[e.source]}_getSourceCaches(e){const t=[];return this._otherSourceCaches[e]&&t.push(this._otherSourceCaches[e]),this._symbolSourceCaches[e]&&t.push(this._symbolSourceCaches[e]),t}has3DLayers(){return this._num3DLayers>0}}We.getSourceType=function(e){return L[e]},We.setSourceType=function(e,t){L[e]=t;},We.registerForPluginStateChange=e.registerForPluginStateChange;var Xe="attribute highp vec3 a_pos_3f;uniform lowp mat4 u_matrix;varying highp vec3 v_uv;void main() {const mat3 half_neg_pi_around_x=mat3(1.0,0.0, 0.0,0.0,0.0,-1.0,0.0,1.0, 0.0);v_uv=half_neg_pi_around_x*a_pos_3f;vec4 pos=u_matrix*vec4(a_pos_3f,1.0);gl_Position=pos.xyww;}";let He={};He=It("","#ifdef TERRAIN\nuniform sampler2D u_dem;uniform sampler2D u_dem_prev;uniform vec4 u_dem_unpack;uniform vec2 u_dem_tl;uniform vec2 u_dem_tl_prev;uniform float u_dem_scale;uniform float u_dem_scale_prev;uniform float u_dem_size;uniform float u_dem_lerp;uniform float u_exaggeration;uniform float u_meter_to_dem;uniform mat4 u_label_plane_matrix_inv;uniform sampler2D u_depth;uniform vec2 u_depth_size_inv;vec4 tileUvToDemSample(vec2 uv,float dem_size,float dem_scale,vec2 dem_tl) {vec2 pos=dem_size*(uv*dem_scale+dem_tl)+1.0;vec2 f=fract(pos);return vec4((pos-f+0.5)/(dem_size+2.0),f);}float decodeElevation(vec4 v) {return dot(vec4(v.xyz*255.0,-1.0),u_dem_unpack);}float currentElevation(vec2 apos) {float dd=1.0/(u_dem_size+2.0);vec4 r=tileUvToDemSample(apos/8192.0,u_dem_size,u_dem_scale,u_dem_tl);vec2 pos=r.xy;vec2 f=r.zw;float tl=decodeElevation(texture2D(u_dem,pos));float tr=decodeElevation(texture2D(u_dem,pos+vec2(dd,0.0)));float bl=decodeElevation(texture2D(u_dem,pos+vec2(0.0,dd)));float br=decodeElevation(texture2D(u_dem,pos+vec2(dd,dd)));return u_exaggeration*mix(mix(tl,tr,f.x),mix(bl,br,f.x),f.y);}float prevElevation(vec2 apos) {float dd=1.0/(u_dem_size+2.0);vec4 r=tileUvToDemSample(apos/8192.0,u_dem_size,u_dem_scale_prev,u_dem_tl_prev);vec2 pos=r.xy;vec2 f=r.zw;float tl=decodeElevation(texture2D(u_dem_prev,pos));float tr=decodeElevation(texture2D(u_dem_prev,pos+vec2(dd,0.0)));float bl=decodeElevation(texture2D(u_dem_prev,pos+vec2(0.0,dd)));float br=decodeElevation(texture2D(u_dem_prev,pos+vec2(dd,dd)));return u_exaggeration*mix(mix(tl,tr,f.x),mix(bl,br,f.x),f.y);}\n#ifdef TERRAIN_VERTEX_MORPHING\nfloat elevation(vec2 apos) {float nextElevation=currentElevation(apos);float prevElevation=prevElevation(apos);return mix(prevElevation,nextElevation,u_dem_lerp);}\n#else\nfloat elevation(vec2 apos) {return currentElevation(apos);}\n#endif\nfloat unpack_depth(vec4 rgba_depth)\n{const vec4 bit_shift=vec4(1.0/(256.0*256.0*256.0),1.0/(256.0*256.0),1.0/256.0,1.0);return dot(rgba_depth,bit_shift)*2.0-1.0;}bool isOccluded(vec4 frag) {vec3 coord=frag.xyz/frag.w;float depth=unpack_depth(texture2D(u_depth,(coord.xy+1.0)*0.5));return coord.z > depth+0.0005;}float occlusionFade(vec4 frag) {vec3 coord=frag.xyz/frag.w;vec3 df=vec3(5.0*u_depth_size_inv,0.0);vec2 uv=0.5*coord.xy+0.5;vec4 depth=vec4(\nunpack_depth(texture2D(u_depth,uv-df.xz)),unpack_depth(texture2D(u_depth,uv+df.xz)),unpack_depth(texture2D(u_depth,uv-df.zy)),unpack_depth(texture2D(u_depth,uv+df.zy))\n);return dot(vec4(0.25),vec4(1.0)-clamp(300.0*(vec4(coord.z-0.001)-depth),0.0,1.0));}vec4 fourSample(vec2 pos,vec2 off) {vec4 demtl=vec4(texture2D(u_dem,pos).xyz*255.0,-1.0);float tl=dot(demtl,u_dem_unpack);vec4 demtr=vec4(texture2D(u_dem,pos+vec2(off.x,0.0)).xyz*255.0,-1.0);float tr=dot(demtr,u_dem_unpack);vec4 dembl=vec4(texture2D(u_dem,pos+vec2(0.0,off.y)).xyz*255.0,-1.0);float bl=dot(dembl,u_dem_unpack);vec4 dembr=vec4(texture2D(u_dem,pos+off).xyz*255.0,-1.0);float br=dot(dembr,u_dem_unpack);return vec4(tl,tr,bl,br);}float flatElevation(vec2 pack) {vec2 apos=floor(pack/8.0);vec2 span=10.0*(pack-apos*8.0);vec2 uvTex=(apos-vec2(1.0,1.0))/8190.0;float size=u_dem_size+2.0;float dd=1.0/size;vec2 pos=u_dem_size*(uvTex*u_dem_scale+u_dem_tl)+1.0;vec2 f=fract(pos);pos=(pos-f+0.5)*dd;vec4 h=fourSample(pos,vec2(dd));float z=mix(mix(h.x,h.y,f.x),mix(h.z,h.w,f.x),f.y);vec2 w=floor(0.5*(span*u_meter_to_dem-1.0));vec2 d=dd*w;vec4 bounds=vec4(d,vec2(1.0)-d);h=fourSample(pos-d,2.0*d+vec2(dd));vec4 diff=abs(h.xzxy-h.ywzw);vec2 slope=min(vec2(0.25),u_meter_to_dem*0.5*(diff.xz+diff.yw)/(2.0*w+vec2(1.0)));vec2 fix=slope*span;float base=z+max(fix.x,fix.y);return u_exaggeration*base;}float elevationFromUint16(float word) {return u_exaggeration*word/7.3;}\n#else\nfloat elevation(vec2 pos) { return 0.0; }bool isOccluded(vec4 frag) { return false; }float occlusionFade(vec4 frag) { return 1.0; }\n#endif",!0);const Ke=It("#ifdef GL_ES\nprecision mediump float;\n#else\n#if !defined(lowp)\n#define lowp\n#endif\n#if !defined(mediump)\n#define mediump\n#endif\n#if !defined(highp)\n#define highp\n#endif\n#endif\nconst float PI=3.141592653589793;","#ifdef GL_ES\nprecision highp float;\n#else\n#if !defined(lowp)\n#define lowp\n#endif\n#if !defined(mediump)\n#define mediump\n#endif\n#if !defined(highp)\n#define highp\n#endif\n#endif\nvec2 unpack_float(const float packedValue) {int packedIntValue=int(packedValue);int v0=packedIntValue/256;return vec2(v0,packedIntValue-v0*256);}vec2 unpack_opacity(const float packedOpacity) {int intOpacity=int(packedOpacity)/2;return vec2(float(intOpacity)/127.0,mod(packedOpacity,2.0));}vec4 decode_color(const vec2 encodedColor) {return vec4(\nunpack_float(encodedColor[0])/255.0,unpack_float(encodedColor[1])/255.0\n);}float unpack_mix_vec2(const vec2 packedValue,const float t) {return mix(packedValue[0],packedValue[1],t);}vec4 unpack_mix_color(const vec4 packedColors,const float t) {vec4 minColor=decode_color(vec2(packedColors[0],packedColors[1]));vec4 maxColor=decode_color(vec2(packedColors[2],packedColors[3]));return mix(minColor,maxColor,t);}vec2 get_pattern_pos(const vec2 pixel_coord_upper,const vec2 pixel_coord_lower,const vec2 pattern_size,const float tile_units_to_pixels,const vec2 pos) {vec2 offset=mod(mod(mod(pixel_coord_upper,pattern_size)*256.0,pattern_size)*256.0+pixel_coord_lower,pattern_size);return (tile_units_to_pixels*pos+offset)/pattern_size;}const float PI=3.141592653589793;const vec4 AWAY=vec4(-1000.0,-1000.0,-1000.0,1);//Normalized device coordinate that is not rendered."),Ye=It("uniform vec4 u_color;uniform float u_opacity;void main() {gl_FragColor=u_color*u_opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","attribute vec2 a_pos;uniform mat4 u_matrix;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);}"),Je=It("uniform vec2 u_pattern_tl_a;uniform vec2 u_pattern_br_a;uniform vec2 u_pattern_tl_b;uniform vec2 u_pattern_br_b;uniform vec2 u_texsize;uniform float u_mix;uniform float u_opacity;uniform sampler2D u_image;varying vec2 v_pos_a;varying vec2 v_pos_b;void main() {vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(u_pattern_tl_a/u_texsize,u_pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(u_pattern_tl_b/u_texsize,u_pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);gl_FragColor=mix(color1,color2,u_mix)*u_opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_pattern_size_a;uniform vec2 u_pattern_size_b;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform float u_scale_a;uniform float u_scale_b;uniform float u_tile_units_to_pixels;attribute vec2 a_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,u_scale_a*u_pattern_size_a,u_tile_units_to_pixels,a_pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,u_scale_b*u_pattern_size_b,u_tile_units_to_pixels,a_pos);}"),Qe=It("varying vec3 v_data;varying float v_visibility;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define mediump float radius\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define highp vec4 stroke_color\n#pragma mapbox: define mediump float stroke_width\n#pragma mapbox: define lowp float stroke_opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize mediump float radius\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize highp vec4 stroke_color\n#pragma mapbox: initialize mediump float stroke_width\n#pragma mapbox: initialize lowp float stroke_opacity\nvec2 extrude=v_data.xy;float extrude_length=length(extrude);lowp float antialiasblur=v_data.z;float antialiased_blur=-max(blur,antialiasblur);float opacity_t=smoothstep(0.0,antialiased_blur,extrude_length-1.0);float color_t=stroke_width < 0.01 ? 0.0 : smoothstep(\nantialiased_blur,0.0,extrude_length-radius/(radius+stroke_width)\n);gl_FragColor=v_visibility*opacity_t*mix(color*opacity,stroke_color*stroke_opacity,color_t);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","#define NUM_VISIBILITY_RINGS 2\n#define INV_SQRT2 0.70710678\n#define ELEVATION_BIAS 0.0001\n#define NUM_SAMPLES_PER_RING 16\nuniform mat4 u_matrix;uniform vec2 u_extrude_scale;uniform lowp float u_device_pixel_ratio;uniform highp float u_camera_to_center_distance;attribute vec2 a_pos;varying vec3 v_data;varying float v_visibility;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define mediump float radius\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define highp vec4 stroke_color\n#pragma mapbox: define mediump float stroke_width\n#pragma mapbox: define lowp float stroke_opacity\nvec2 calc_offset(vec2 extrusion,float radius,float stroke_width, float view_scale) {return extrusion*(radius+stroke_width)*u_extrude_scale*view_scale;}float cantilevered_elevation(vec2 pos,float radius,float stroke_width,float view_scale) {vec2 c1=pos+calc_offset(vec2(-1,-1),radius,stroke_width,view_scale);vec2 c2=pos+calc_offset(vec2(1,-1),radius,stroke_width,view_scale);vec2 c3=pos+calc_offset(vec2(1,1),radius,stroke_width,view_scale);vec2 c4=pos+calc_offset(vec2(-1,1),radius,stroke_width,view_scale);float h1=elevation(c1)+ELEVATION_BIAS;float h2=elevation(c2)+ELEVATION_BIAS;float h3=elevation(c3)+ELEVATION_BIAS;float h4=elevation(c4)+ELEVATION_BIAS;return max(h4,max(h3,max(h1,h2)));}float circle_elevation(vec2 pos) {\n#if defined(TERRAIN)\nreturn elevation(pos)+ELEVATION_BIAS;\n#else\nreturn 0.0;\n#endif\n}vec4 project_vertex(vec2 extrusion,vec4 world_center,vec4 projected_center,float radius,float stroke_width, float view_scale) {vec2 sample_offset=calc_offset(extrusion,radius,stroke_width,view_scale);\n#ifdef PITCH_WITH_MAP\nreturn u_matrix*( world_center+vec4(sample_offset,0,0) );\n#else\nreturn projected_center+vec4(sample_offset,0,0);\n#endif\n}float get_sample_step() {\n#ifdef PITCH_WITH_MAP\nreturn 2.0*PI/float(NUM_SAMPLES_PER_RING);\n#else\nreturn PI/float(NUM_SAMPLES_PER_RING);\n#endif\n}void main(void) {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize mediump float radius\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize highp vec4 stroke_color\n#pragma mapbox: initialize mediump float stroke_width\n#pragma mapbox: initialize lowp float stroke_opacity\nvec2 extrude=vec2(mod(a_pos,2.0)*2.0-1.0);vec2 circle_center=floor(a_pos*0.5);float height=circle_elevation(circle_center);vec4 world_center=vec4(circle_center,height,1);vec4 projected_center=u_matrix*world_center;float view_scale=0.0;\n#ifdef PITCH_WITH_MAP\n#ifdef SCALE_WITH_MAP\nview_scale=1.0;\n#else\nview_scale=projected_center.w/u_camera_to_center_distance;\n#endif\n#else\n#ifdef SCALE_WITH_MAP\nview_scale=u_camera_to_center_distance;\n#else\nview_scale=projected_center.w;\n#endif\n#endif\ngl_Position=project_vertex(extrude,world_center,projected_center,radius,stroke_width,view_scale);float visibility=0.0;\n#ifdef TERRAIN\nfloat step=get_sample_step();\n#ifdef PITCH_WITH_MAP\nfloat cantilevered_height=cantilevered_elevation(circle_center,radius,stroke_width,view_scale);vec4 occlusion_world_center=vec4(circle_center,cantilevered_height,1);vec4 occlusion_projected_center=u_matrix*occlusion_world_center;\n#else\nvec4 occlusion_world_center=world_center;vec4 occlusion_projected_center=projected_center;\n#endif\nfor(int ring=0; ring < NUM_VISIBILITY_RINGS; ring++) {float scale=(float(ring)+1.0)/float(NUM_VISIBILITY_RINGS);for(int i=0; i < NUM_SAMPLES_PER_RING; i++) {vec2 extrusion=vec2(cos(step*float(i)),-sin(step*float(i)))*scale;vec4 frag_pos=project_vertex(extrusion,occlusion_world_center,occlusion_projected_center,radius,stroke_width,view_scale);visibility+=float(!isOccluded(frag_pos));}}visibility/=float(NUM_VISIBILITY_RINGS)*float(NUM_SAMPLES_PER_RING);\n#else\nvisibility=1.0;\n#endif\nv_visibility=visibility;lowp float antialiasblur=1.0/u_device_pixel_ratio/(radius+stroke_width);v_data=vec3(extrude.x,extrude.y,antialiasblur);}"),et=It("void main() {gl_FragColor=vec4(1.0);}","attribute vec2 a_pos;uniform mat4 u_matrix;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);}"),tt=It("uniform highp float u_intensity;varying vec2 v_extrude;\n#pragma mapbox: define highp float weight\n#define GAUSS_COEF 0.3989422804014327\nvoid main() {\n#pragma mapbox: initialize highp float weight\nfloat d=-0.5*3.0*3.0*dot(v_extrude,v_extrude);float val=weight*u_intensity*GAUSS_COEF*exp(d);gl_FragColor=vec4(val,1.0,1.0,1.0);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform float u_extrude_scale;uniform float u_opacity;uniform float u_intensity;attribute vec2 a_pos;varying vec2 v_extrude;\n#pragma mapbox: define highp float weight\n#pragma mapbox: define mediump float radius\nconst highp float ZERO=1.0/255.0/16.0;\n#define GAUSS_COEF 0.3989422804014327\nvoid main(void) {\n#pragma mapbox: initialize highp float weight\n#pragma mapbox: initialize mediump float radius\nvec2 unscaled_extrude=vec2(mod(a_pos,2.0)*2.0-1.0);float S=sqrt(-2.0*log(ZERO/weight/u_intensity/GAUSS_COEF))/3.0;v_extrude=S*unscaled_extrude;vec2 extrude=v_extrude*radius*u_extrude_scale;vec4 pos=vec4(floor(a_pos*0.5)+extrude,elevation(floor(a_pos*0.5)),1);gl_Position=u_matrix*pos;}"),it=It("uniform sampler2D u_image;uniform sampler2D u_color_ramp;uniform float u_opacity;varying vec2 v_pos;void main() {float t=texture2D(u_image,v_pos).r;vec4 color=texture2D(u_color_ramp,vec2(t,0.5));gl_FragColor=color*u_opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(0.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_world;attribute vec2 a_pos;varying vec2 v_pos;void main() {gl_Position=u_matrix*vec4(a_pos*u_world,0,1);v_pos.x=a_pos.x;v_pos.y=1.0-a_pos.y;}"),ot=It("varying float v_placed;varying float v_notUsed;void main() {vec4 red =vec4(1.0,0.0,0.0,1.0);vec4 blue=vec4(0.0,0.0,1.0,0.5);gl_FragColor =mix(red,blue,step(0.5,v_placed))*0.5;gl_FragColor*=mix(1.0,0.1,step(0.5,v_notUsed));}","attribute vec2 a_pos;attribute vec2 a_anchor_pos;attribute vec2 a_extrude;attribute vec2 a_placed;attribute vec2 a_shift;attribute float a_size_scale;attribute vec2 a_padding;uniform mat4 u_matrix;uniform vec2 u_extrude_scale;uniform float u_camera_to_center_distance;varying float v_placed;varying float v_notUsed;void main() {vec4 projectedPoint=u_matrix*vec4(a_anchor_pos,elevation(a_anchor_pos),1);highp float camera_to_anchor_distance=projectedPoint.w;highp float collision_perspective_ratio=clamp(\n0.5+0.5*(u_camera_to_center_distance/camera_to_anchor_distance),0.0,1.5);gl_Position=u_matrix*vec4(a_pos,elevation(a_pos),1.0);gl_Position.xy+=(a_extrude*a_size_scale+a_shift+a_padding)*u_extrude_scale*gl_Position.w*collision_perspective_ratio;v_placed=a_placed.x;v_notUsed=a_placed.y;}"),at=It("varying float v_radius;varying vec2 v_extrude;varying float v_perspective_ratio;varying float v_collision;void main() {float alpha=0.5*min(v_perspective_ratio,1.0);float stroke_radius=0.9*max(v_perspective_ratio,1.0);float distance_to_center=length(v_extrude);float distance_to_edge=abs(distance_to_center-v_radius);float opacity_t=smoothstep(-stroke_radius,0.0,-distance_to_edge);vec4 color=mix(vec4(0.0,0.0,1.0,0.5),vec4(1.0,0.0,0.0,1.0),v_collision);gl_FragColor=color*alpha*opacity_t;}","attribute vec2 a_pos_2f;attribute float a_radius;attribute vec2 a_flags;uniform mat4 u_matrix;uniform mat4 u_inv_matrix;uniform vec2 u_viewport_size;uniform float u_camera_to_center_distance;varying float v_radius;varying vec2 v_extrude;varying float v_perspective_ratio;varying float v_collision;vec3 toTilePosition(vec2 screenPos) {vec4 rayStart=u_inv_matrix*vec4(screenPos,-1.0,1.0);vec4 rayEnd =u_inv_matrix*vec4(screenPos, 1.0,1.0);rayStart.xyz/=rayStart.w;rayEnd.xyz /=rayEnd.w;highp float t=(0.0-rayStart.z)/(rayEnd.z-rayStart.z);return mix(rayStart.xyz,rayEnd.xyz,t);}void main() {vec2 quadCenterPos=a_pos_2f;float radius=a_radius;float collision=a_flags.x;float vertexIdx=a_flags.y;vec2 quadVertexOffset=vec2(\nmix(-1.0,1.0,float(vertexIdx >=2.0)),mix(-1.0,1.0,float(vertexIdx >=1.0 && vertexIdx <=2.0)));vec2 quadVertexExtent=quadVertexOffset*radius;vec3 tilePos=toTilePosition(quadCenterPos);vec4 clipPos=u_matrix*vec4(tilePos,1.0);highp float camera_to_anchor_distance=clipPos.w;highp float collision_perspective_ratio=clamp(\n0.5+0.5*(u_camera_to_center_distance/camera_to_anchor_distance),0.0,4.0);float padding_factor=1.2;v_radius=radius;v_extrude=quadVertexExtent*padding_factor;v_perspective_ratio=collision_perspective_ratio;v_collision=collision;gl_Position=vec4(clipPos.xyz/clipPos.w,1.0)+vec4(quadVertexExtent*padding_factor/u_viewport_size*2.0,0.0,0.0);}"),rt=It("uniform highp vec4 u_color;uniform sampler2D u_overlay;varying vec2 v_uv;void main() {vec4 overlay_color=texture2D(u_overlay,v_uv);gl_FragColor=mix(u_color,overlay_color,overlay_color.a);}","attribute vec2 a_pos;varying vec2 v_uv;uniform mat4 u_matrix;uniform float u_overlay_scale;void main() {float h=elevation(a_pos);v_uv=a_pos/8192.0;gl_Position=u_matrix*vec4(a_pos*u_overlay_scale,h,1);}"),nt=It("#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float opacity\ngl_FragColor=color*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","attribute vec2 a_pos;uniform mat4 u_matrix;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float opacity\ngl_Position=u_matrix*vec4(a_pos,0,1);}"),st=It("varying vec2 v_pos;\n#pragma mapbox: define highp vec4 outline_color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 outline_color\n#pragma mapbox: initialize lowp float opacity\nfloat dist=length(v_pos-gl_FragCoord.xy);float alpha=1.0-smoothstep(0.0,1.0,dist);gl_FragColor=outline_color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","attribute vec2 a_pos;uniform mat4 u_matrix;uniform vec2 u_world;varying vec2 v_pos;\n#pragma mapbox: define highp vec4 outline_color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 outline_color\n#pragma mapbox: initialize lowp float opacity\ngl_Position=u_matrix*vec4(a_pos,0,1);v_pos=(gl_Position.xy/gl_Position.w+1.0)/2.0*u_world;}"),lt=It("uniform vec2 u_texsize;uniform sampler2D u_image;uniform float u_fade;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec2 v_pos;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);float dist=length(v_pos-gl_FragCoord.xy);float alpha=1.0-smoothstep(0.0,1.0,dist);gl_FragColor=mix(color1,color2,u_fade)*alpha*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_world;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform vec3 u_scale;attribute vec2 a_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec2 v_pos;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float tileRatio=u_scale.x;float fromScale=u_scale.y;float toScale=u_scale.z;gl_Position=u_matrix*vec4(a_pos,0,1);vec2 display_size_a=(pattern_br_a-pattern_tl_a)/pixel_ratio_from;vec2 display_size_b=(pattern_br_b-pattern_tl_b)/pixel_ratio_to;v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,fromScale*display_size_a,tileRatio,a_pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,toScale*display_size_b,tileRatio,a_pos);v_pos=(gl_Position.xy/gl_Position.w+1.0)/2.0*u_world;}"),ct=It("uniform vec2 u_texsize;uniform float u_fade;uniform sampler2D u_image;varying vec2 v_pos_a;varying vec2 v_pos_b;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);gl_FragColor=mix(color1,color2,u_fade)*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform vec3 u_scale;attribute vec2 a_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float tileZoomRatio=u_scale.x;float fromScale=u_scale.y;float toScale=u_scale.z;vec2 display_size_a=(pattern_br_a-pattern_tl_a)/pixel_ratio_from;vec2 display_size_b=(pattern_br_b-pattern_tl_b)/pixel_ratio_to;gl_Position=u_matrix*vec4(a_pos,0,1);v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,fromScale*display_size_a,tileZoomRatio,a_pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,toScale*display_size_b,tileZoomRatio,a_pos);}"),ht=It("varying vec4 v_color;void main() {gl_FragColor=v_color;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec3 u_lightcolor;uniform lowp vec3 u_lightpos;uniform lowp float u_lightintensity;uniform float u_vertical_gradient;uniform lowp float u_opacity;attribute vec4 a_pos_normal_ed;attribute vec2 a_centroid_pos;varying vec4 v_color;\n#pragma mapbox: define highp float base\n#pragma mapbox: define highp float height\n#pragma mapbox: define highp vec4 color\nvoid main() {\n#pragma mapbox: initialize highp float base\n#pragma mapbox: initialize highp float height\n#pragma mapbox: initialize highp vec4 color\nvec3 pos_nx=floor(a_pos_normal_ed.xyz*0.5);mediump vec3 top_up_ny=a_pos_normal_ed.xyz-2.0*pos_nx;float x_normal=pos_nx.z/8192.0;vec3 normal=top_up_ny.y==1.0 ? vec3(0.0,0.0,1.0) : normalize(vec3(x_normal,(2.0*top_up_ny.z-1.0)*(1.0-abs(x_normal)),0.0));base=max(0.0,base);height=max(0.0,height);float t=top_up_ny.x;\n#ifdef TERRAIN\nvec2 centroid_pos=a_centroid_pos;bool flat_roof=centroid_pos.x !=0.0;float ele=elevation(pos_nx.xy);float hidden=float(centroid_pos.x==0.0 && centroid_pos.y==1.0);float c_ele=flat_roof ? centroid_pos.y==0.0 ? elevationFromUint16(centroid_pos.x) : flatElevation(centroid_pos) : ele;float h=flat_roof ? max(c_ele+height,ele+base+2.0) : ele+(t > 0.0 ? height : base==0.0 ?-5.0 : base);gl_Position=mix(u_matrix*vec4(pos_nx.xy,h,1),AWAY,hidden);\n#else\ngl_Position=u_matrix*vec4(pos_nx.xy,t > 0.0 ? height : base,1);\n#endif\nfloat colorvalue=color.r*0.2126+color.g*0.7152+color.b*0.0722;v_color=vec4(0.0,0.0,0.0,1.0);vec4 ambientlight=vec4(0.03,0.03,0.03,1.0);color+=ambientlight;float directional=clamp(dot(normal,u_lightpos),0.0,1.0);directional=mix((1.0-u_lightintensity),max((1.0-colorvalue+u_lightintensity),1.0),directional);if (normal.y !=0.0) {directional*=(\n(1.0-u_vertical_gradient)+(u_vertical_gradient*clamp((t+base)*pow(height/150.0,0.5),mix(0.7,0.98,1.0-u_lightintensity),1.0)));}v_color.r+=clamp(color.r*directional*u_lightcolor.r,mix(0.0,0.3,1.0-u_lightcolor.r),1.0);v_color.g+=clamp(color.g*directional*u_lightcolor.g,mix(0.0,0.3,1.0-u_lightcolor.g),1.0);v_color.b+=clamp(color.b*directional*u_lightcolor.b,mix(0.0,0.3,1.0-u_lightcolor.b),1.0);v_color*=u_opacity;}"),ut=It("uniform vec2 u_texsize;uniform float u_fade;uniform sampler2D u_image;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec4 v_lighting;\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float base\n#pragma mapbox: initialize lowp float height\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);vec4 mixedColor=mix(color1,color2,u_fade);gl_FragColor=mixedColor*v_lighting;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform float u_height_factor;uniform vec3 u_scale;uniform float u_vertical_gradient;uniform lowp float u_opacity;uniform vec3 u_lightcolor;uniform lowp vec3 u_lightpos;uniform lowp float u_lightintensity;attribute vec4 a_pos_normal_ed;attribute vec2 a_centroid_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec4 v_lighting;\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float base\n#pragma mapbox: initialize lowp float height\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float tileRatio=u_scale.x;float fromScale=u_scale.y;float toScale=u_scale.z;vec3 pos_nx=floor(a_pos_normal_ed.xyz*0.5);mediump vec3 top_up_ny=a_pos_normal_ed.xyz-2.0*pos_nx;float x_normal=pos_nx.z/8192.0;vec3 normal=top_up_ny.y==1.0 ? vec3(0.0,0.0,1.0) : normalize(vec3(x_normal,(2.0*top_up_ny.z-1.0)*(1.0-abs(x_normal)),0.0));float edgedistance=a_pos_normal_ed.w;vec2 display_size_a=(pattern_br_a-pattern_tl_a)/pixel_ratio_from;vec2 display_size_b=(pattern_br_b-pattern_tl_b)/pixel_ratio_to;base=max(0.0,base);height=max(0.0,height);float t=top_up_ny.x;float z=t > 0.0 ? height : base;\n#ifdef TERRAIN\nvec2 centroid_pos=a_centroid_pos;bool flat_roof=centroid_pos.x !=0.0;float ele=elevation(pos_nx.xy);float hidden=float(centroid_pos.x==0.0 && centroid_pos.y==1.0);float c_ele=flat_roof ? centroid_pos.y==0.0 ? elevationFromUint16(centroid_pos.x) : flatElevation(centroid_pos) : ele;float h=flat_roof ? max(c_ele+height,ele+base+2.0) : ele+(t > 0.0 ? height : base==0.0 ?-5.0 : base);gl_Position=mix(u_matrix*vec4(pos_nx.xy,h,1),AWAY,hidden);\n#else\ngl_Position=u_matrix*vec4(pos_nx.xy,z,1);\n#endif\nvec2 pos=normal.z==1.0\n? pos_nx.xy\n: vec2(edgedistance,z*u_height_factor);v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,fromScale*display_size_a,tileRatio,pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,toScale*display_size_b,tileRatio,pos);v_lighting=vec4(0.0,0.0,0.0,1.0);float directional=clamp(dot(normal,u_lightpos),0.0,1.0);directional=mix((1.0-u_lightintensity),max((0.5+u_lightintensity),1.0),directional);if (normal.y !=0.0) {directional*=(\n(1.0-u_vertical_gradient)+(u_vertical_gradient*clamp((t+base)*pow(height/150.0,0.5),mix(0.7,0.98,1.0-u_lightintensity),1.0)));}v_lighting.rgb+=clamp(directional*u_lightcolor,mix(vec3(0.0),vec3(0.3),1.0-u_lightcolor),vec3(1.0));v_lighting*=u_opacity;}"),dt=It("#ifdef GL_ES\nprecision highp float;\n#endif\nuniform sampler2D u_image;varying vec2 v_pos;uniform vec2 u_dimension;uniform float u_zoom;uniform vec4 u_unpack;float getElevation(vec2 coord,float bias) {vec4 data=texture2D(u_image,coord)*255.0;data.a=-1.0;return dot(data,u_unpack)/4.0;}void main() {vec2 epsilon=1.0/u_dimension;float a=getElevation(v_pos+vec2(-epsilon.x,-epsilon.y),0.0);float b=getElevation(v_pos+vec2(0,-epsilon.y),0.0);float c=getElevation(v_pos+vec2(epsilon.x,-epsilon.y),0.0);float d=getElevation(v_pos+vec2(-epsilon.x,0),0.0);float e=getElevation(v_pos,0.0);float f=getElevation(v_pos+vec2(epsilon.x,0),0.0);float g=getElevation(v_pos+vec2(-epsilon.x,epsilon.y),0.0);float h=getElevation(v_pos+vec2(0,epsilon.y),0.0);float i=getElevation(v_pos+vec2(epsilon.x,epsilon.y),0.0);float exaggerationFactor=u_zoom < 2.0 ? 0.4 : u_zoom < 4.5 ? 0.35 : 0.3;float exaggeration=u_zoom < 15.0 ? (u_zoom-15.0)*exaggerationFactor : 0.0;vec2 deriv=vec2(\n(c+f+f+i)-(a+d+d+g),(g+h+h+i)-(a+b+b+c)\n)/pow(2.0,exaggeration+(19.2562-u_zoom));gl_FragColor=clamp(vec4(\nderiv.x/2.0+0.5,deriv.y/2.0+0.5,1.0,1.0),0.0,1.0);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_dimension;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);highp vec2 epsilon=1.0/u_dimension;float scale=(u_dimension.x-2.0)/u_dimension.x;v_pos=(a_texture_pos/8192.0)*scale+epsilon;}"),_t=It("uniform sampler2D u_image;varying vec2 v_pos;uniform vec2 u_latrange;uniform vec2 u_light;uniform vec4 u_shadow;uniform vec4 u_highlight;uniform vec4 u_accent;void main() {vec4 pixel=texture2D(u_image,v_pos);vec2 deriv=((pixel.rg*2.0)-1.0);float scaleFactor=cos(radians((u_latrange[0]-u_latrange[1])*(1.0-v_pos.y)+u_latrange[1]));float slope=atan(1.25*length(deriv)/scaleFactor);float aspect=deriv.x !=0.0 ? atan(deriv.y,-deriv.x) : PI/2.0*(deriv.y > 0.0 ? 1.0 :-1.0);float intensity=u_light.x;float azimuth=u_light.y+PI;float base=1.875-intensity*1.75;float maxValue=0.5*PI;float scaledSlope=intensity !=0.5 ? ((pow(base,slope)-1.0)/(pow(base,maxValue)-1.0))*maxValue : slope;float accent=cos(scaledSlope);vec4 accent_color=(1.0-accent)*u_accent*clamp(intensity*2.0,0.0,1.0);float shade=abs(mod((aspect+azimuth)/PI+0.5,2.0)-1.0);vec4 shade_color=mix(u_shadow,u_highlight,shade)*sin(scaledSlope)*clamp(intensity*2.0,0.0,1.0);gl_FragColor=accent_color*(1.0-shade_color.a)+shade_color;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);v_pos=a_texture_pos/8192.0;}"),mt=It("uniform lowp float u_device_pixel_ratio;varying vec2 v_width2;varying vec2 v_normal;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\nfloat dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);gl_FragColor=color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;uniform mat4 u_matrix;uniform mediump float u_ratio;uniform vec2 u_units_to_pixels;uniform lowp float u_device_pixel_ratio;varying vec2 v_normal;varying vec2 v_width2;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float width\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;\n#ifndef RENDER_TO_TEXTURE\nfloat extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;\n#else\nv_gamma_scale=1.0;\n#endif\nv_width2=vec2(outset,inset);}"),pt=It("uniform lowp float u_device_pixel_ratio;uniform sampler2D u_image;varying vec2 v_width2;varying vec2 v_normal;varying float v_gamma_scale;varying highp vec2 v_uv;\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\nfloat dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);vec4 color=texture2D(u_image,v_uv);gl_FragColor=color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;attribute float a_uv_x;attribute float a_split_index;uniform mat4 u_matrix;uniform mediump float u_ratio;uniform lowp float u_device_pixel_ratio;uniform vec2 u_units_to_pixels;uniform float u_image_height;varying vec2 v_normal;varying vec2 v_width2;varying float v_gamma_scale;varying highp vec2 v_uv;\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\nvoid main() {\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float width\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;highp float texel_height=1.0/u_image_height;highp float half_texel_height=0.5*texel_height;v_uv=vec2(a_uv_x,a_split_index*texel_height-half_texel_height);vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;\n#ifndef RENDER_TO_TEXTURE\nfloat extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;\n#else\nv_gamma_scale=1.0;\n#endif\nv_width2=vec2(outset,inset);}"),ft=It("uniform lowp float u_device_pixel_ratio;uniform vec2 u_texsize;uniform float u_fade;uniform mediump vec3 u_scale;uniform sampler2D u_image;varying vec2 v_normal;varying vec2 v_width2;varying float v_linesofar;varying float v_gamma_scale;varying float v_width;\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float tileZoomRatio=u_scale.x;float fromScale=u_scale.y;float toScale=u_scale.z;vec2 display_size_a=(pattern_br_a-pattern_tl_a)/pixel_ratio_from;vec2 display_size_b=(pattern_br_b-pattern_tl_b)/pixel_ratio_to;vec2 pattern_size_a=vec2(display_size_a.x*fromScale/tileZoomRatio,display_size_a.y);vec2 pattern_size_b=vec2(display_size_b.x*toScale/tileZoomRatio,display_size_b.y);float aspect_a=display_size_a.y/v_width;float aspect_b=display_size_b.y/v_width;float dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);float x_a=mod(v_linesofar/pattern_size_a.x*aspect_a,1.0);float x_b=mod(v_linesofar/pattern_size_b.x*aspect_b,1.0);float y=0.5*v_normal.y+0.5;vec2 texel_size=1.0/u_texsize;vec2 pos_a=mix(pattern_tl_a*texel_size-texel_size,pattern_br_a*texel_size+texel_size,vec2(x_a,y));vec2 pos_b=mix(pattern_tl_b*texel_size-texel_size,pattern_br_b*texel_size+texel_size,vec2(x_b,y));vec4 color=mix(texture2D(u_image,pos_a),texture2D(u_image,pos_b),u_fade);gl_FragColor=color*alpha*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;attribute float a_linesofar;uniform mat4 u_matrix;uniform vec2 u_units_to_pixels;uniform mediump float u_ratio;uniform lowp float u_device_pixel_ratio;varying vec2 v_normal;varying vec2 v_width2;varying float v_linesofar;varying float v_gamma_scale;varying float v_width;\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize mediump float width\n#pragma mapbox: initialize lowp float floorwidth\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;\n#ifndef RENDER_TO_TEXTURE\nfloat extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;\n#else\nv_gamma_scale=1.0;\n#endif\nv_linesofar=a_linesofar;v_width2=vec2(outset,inset);v_width=floorwidth;}"),gt=It("uniform lowp float u_device_pixel_ratio;uniform sampler2D u_image;uniform float u_sdfgamma;uniform float u_mix;varying vec2 v_normal;varying vec2 v_width2;varying vec2 v_tex_a;varying vec2 v_tex_b;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float width\n#pragma mapbox: initialize lowp float floorwidth\nfloat dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);float sdfdist_a=texture2D(u_image,v_tex_a).a;float sdfdist_b=texture2D(u_image,v_tex_b).a;float sdfdist=mix(sdfdist_a,sdfdist_b,u_mix);alpha*=smoothstep(0.5-u_sdfgamma/floorwidth,0.5+u_sdfgamma/floorwidth,sdfdist);gl_FragColor=color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;attribute float a_linesofar;uniform mat4 u_matrix;uniform mediump float u_ratio;uniform lowp float u_device_pixel_ratio;uniform vec2 u_patternscale_a;uniform float u_tex_y_a;uniform vec2 u_patternscale_b;uniform float u_tex_y_b;uniform vec2 u_units_to_pixels;varying vec2 v_normal;varying vec2 v_width2;varying vec2 v_tex_a;varying vec2 v_tex_b;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float width\n#pragma mapbox: initialize lowp float floorwidth\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;\n#ifndef RENDER_TO_TEXTURE\nfloat extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;\n#else\nv_gamma_scale=1.0;\n#endif\nv_tex_a=vec2(a_linesofar*u_patternscale_a.x/floorwidth,normal.y*u_patternscale_a.y+u_tex_y_a);v_tex_b=vec2(a_linesofar*u_patternscale_b.x/floorwidth,normal.y*u_patternscale_b.y+u_tex_y_b);v_width2=vec2(outset,inset);}"),vt=It("uniform float u_fade_t;uniform float u_opacity;uniform sampler2D u_image0;uniform sampler2D u_image1;varying vec2 v_pos0;varying vec2 v_pos1;uniform float u_brightness_low;uniform float u_brightness_high;uniform float u_saturation_factor;uniform float u_contrast_factor;uniform vec3 u_spin_weights;void main() {vec4 color0=texture2D(u_image0,v_pos0);vec4 color1=texture2D(u_image1,v_pos1);if (color0.a > 0.0) {color0.rgb=color0.rgb/color0.a;}if (color1.a > 0.0) {color1.rgb=color1.rgb/color1.a;}vec4 color=mix(color0,color1,u_fade_t);color.a*=u_opacity;vec3 rgb=color.rgb;rgb=vec3(\ndot(rgb,u_spin_weights.xyz),dot(rgb,u_spin_weights.zxy),dot(rgb,u_spin_weights.yzx));float average=(color.r+color.g+color.b)/3.0;rgb+=(average-rgb)*u_saturation_factor;rgb=(rgb-0.5)*u_contrast_factor+0.5;vec3 u_high_vec=vec3(u_brightness_low,u_brightness_low,u_brightness_low);vec3 u_low_vec=vec3(u_brightness_high,u_brightness_high,u_brightness_high);gl_FragColor=vec4(mix(u_high_vec,u_low_vec,rgb)*color.a,color.a);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_tl_parent;uniform float u_scale_parent;uniform float u_buffer_scale;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos0;varying vec2 v_pos1;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);v_pos0=(((a_texture_pos/8192.0)-0.5)/u_buffer_scale )+0.5;v_pos1=(v_pos0*u_scale_parent)+u_tl_parent;}"),xt=It("uniform sampler2D u_texture;varying vec2 v_tex;varying float v_fade_opacity;\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\nlowp float alpha=opacity*v_fade_opacity;gl_FragColor=texture2D(u_texture,v_tex)*alpha;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","attribute vec4 a_pos_offset;attribute vec4 a_data;attribute vec4 a_pixeloffset;attribute vec3 a_projected_pos;attribute float a_fade_opacity;uniform bool u_is_size_zoom_constant;uniform bool u_is_size_feature_constant;uniform highp float u_size_t;uniform highp float u_size;uniform highp float u_camera_to_center_distance;uniform highp float u_pitch;uniform bool u_rotate_symbol;uniform highp float u_aspect_ratio;uniform float u_fade_change;uniform mat4 u_matrix;uniform mat4 u_label_plane_matrix;uniform mat4 u_coord_matrix;uniform bool u_is_text;uniform bool u_pitch_with_map;uniform vec2 u_texsize;varying vec2 v_tex;varying float v_fade_opacity;\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\nvec2 a_pos=a_pos_offset.xy;vec2 a_offset=a_pos_offset.zw;vec2 a_tex=a_data.xy;vec2 a_size=a_data.zw;float a_size_min=floor(a_size[0]*0.5);vec2 a_pxoffset=a_pixeloffset.xy;vec2 a_minFontScale=a_pixeloffset.zw/256.0;highp float segment_angle=-a_projected_pos[2];float size;if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {size=mix(a_size_min,a_size[1],u_size_t)/128.0;} else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {size=a_size_min/128.0;} else {size=u_size;}float h=elevation(a_pos);vec4 projectedPoint=u_matrix*vec4(a_pos,h,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float distance_ratio=u_pitch_with_map ?\ncamera_to_anchor_distance/u_camera_to_center_distance :\nu_camera_to_center_distance/camera_to_anchor_distance;highp float perspective_ratio=clamp(\n0.5+0.5*distance_ratio,0.0,1.5);size*=perspective_ratio;float fontScale=u_is_text ? size/24.0 : size;highp float symbol_rotation=0.0;if (u_rotate_symbol) {vec4 offsetProjectedPoint=u_matrix*vec4(a_pos+vec2(1,0),h,1);vec2 a=projectedPoint.xy/projectedPoint.w;vec2 b=offsetProjectedPoint.xy/offsetProjectedPoint.w;symbol_rotation=atan((b.y-a.y)/u_aspect_ratio,b.x-a.x);}highp float angle_sin=sin(segment_angle+symbol_rotation);highp float angle_cos=cos(segment_angle+symbol_rotation);mat2 rotation_matrix=mat2(angle_cos,-1.0*angle_sin,angle_sin,angle_cos);vec4 projected_pos=u_label_plane_matrix*vec4(a_projected_pos.xy,h,1.0);float z=0.0;vec2 offset=rotation_matrix*(a_offset/32.0*max(a_minFontScale,fontScale)+a_pxoffset/16.0);\n#ifdef PITCH_WITH_MAP_TERRAIN\nvec4 tile_pos=u_label_plane_matrix_inv*vec4(a_projected_pos.xy+offset,0.0,1.0);z=elevation(tile_pos.xy);\n#endif\nfloat occlusion_fade=occlusionFade(projectedPoint);gl_Position=mix(u_coord_matrix*vec4(projected_pos.xy/projected_pos.w+offset,z,1.0),AWAY,float(projectedPoint.w <=0.0 || occlusion_fade==0.0));v_tex=a_tex/u_texsize;vec2 fade_opacity=unpack_opacity(a_fade_opacity);float fade_change=fade_opacity[1] > 0.5 ? u_fade_change :-u_fade_change;v_fade_opacity=max(0.0,min(occlusion_fade,fade_opacity[0]+fade_change));}"),yt=It("#define SDF_PX 8.0\nuniform bool u_is_halo;uniform sampler2D u_texture;uniform highp float u_gamma_scale;uniform lowp float u_device_pixel_ratio;uniform bool u_is_text;varying vec2 v_data0;varying vec3 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nfloat EDGE_GAMMA=0.105/u_device_pixel_ratio;vec2 tex=v_data0.xy;float gamma_scale=v_data1.x;float size=v_data1.y;float fade_opacity=v_data1[2];float fontScale=u_is_text ? size/24.0 : size;lowp vec4 color=fill_color;highp float gamma=EDGE_GAMMA/(fontScale*u_gamma_scale);lowp float buff=(256.0-64.0)/256.0;if (u_is_halo) {color=halo_color;gamma=(halo_blur*1.19/SDF_PX+EDGE_GAMMA)/(fontScale*u_gamma_scale);buff=(6.0-halo_width/fontScale)/SDF_PX;}lowp float dist=texture2D(u_texture,tex).a;highp float gamma_scaled=gamma*gamma_scale;highp float alpha=smoothstep(buff-gamma_scaled,buff+gamma_scaled,dist);gl_FragColor=color*(alpha*opacity*fade_opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","attribute vec4 a_pos_offset;attribute vec4 a_data;attribute vec4 a_pixeloffset;attribute vec3 a_projected_pos;attribute float a_fade_opacity;uniform bool u_is_size_zoom_constant;uniform bool u_is_size_feature_constant;uniform highp float u_size_t;uniform highp float u_size;uniform mat4 u_matrix;uniform mat4 u_label_plane_matrix;uniform mat4 u_coord_matrix;uniform bool u_is_text;uniform bool u_pitch_with_map;uniform highp float u_pitch;uniform bool u_rotate_symbol;uniform highp float u_aspect_ratio;uniform highp float u_camera_to_center_distance;uniform float u_fade_change;uniform vec2 u_texsize;varying vec2 v_data0;varying vec3 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nvec2 a_pos=a_pos_offset.xy;vec2 a_offset=a_pos_offset.zw;vec2 a_tex=a_data.xy;vec2 a_size=a_data.zw;float a_size_min=floor(a_size[0]*0.5);vec2 a_pxoffset=a_pixeloffset.xy;highp float segment_angle=-a_projected_pos[2];float size;if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {size=mix(a_size_min,a_size[1],u_size_t)/128.0;} else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {size=a_size_min/128.0;} else {size=u_size;}float h=elevation(a_pos);vec4 projectedPoint=u_matrix*vec4(a_pos,h,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float distance_ratio=u_pitch_with_map ?\ncamera_to_anchor_distance/u_camera_to_center_distance :\nu_camera_to_center_distance/camera_to_anchor_distance;highp float perspective_ratio=clamp(\n0.5+0.5*distance_ratio,0.0,1.5);size*=perspective_ratio;float fontScale=u_is_text ? size/24.0 : size;highp float symbol_rotation=0.0;if (u_rotate_symbol) {vec4 offsetProjectedPoint=u_matrix*vec4(a_pos+vec2(1,0),h,1);vec2 a=projectedPoint.xy/projectedPoint.w;vec2 b=offsetProjectedPoint.xy/offsetProjectedPoint.w;symbol_rotation=atan((b.y-a.y)/u_aspect_ratio,b.x-a.x);}highp float angle_sin=sin(segment_angle+symbol_rotation);highp float angle_cos=cos(segment_angle+symbol_rotation);mat2 rotation_matrix=mat2(angle_cos,-1.0*angle_sin,angle_sin,angle_cos);vec4 projected_pos=u_label_plane_matrix*vec4(a_projected_pos.xy,h,1.0);float z=0.0;vec2 offset=rotation_matrix*(a_offset/32.0*fontScale+a_pxoffset);\n#ifdef PITCH_WITH_MAP_TERRAIN\nvec4 tile_pos=u_label_plane_matrix_inv*vec4(a_projected_pos.xy+offset,0.0,1.0);z=elevation(tile_pos.xy);\n#endif\nfloat occlusion_fade=occlusionFade(projectedPoint);gl_Position=mix(u_coord_matrix*vec4(projected_pos.xy/projected_pos.w+offset,z,1.0),AWAY,float(projectedPoint.w <=0.0 || occlusion_fade==0.0));float gamma_scale=gl_Position.w;vec2 fade_opacity=unpack_opacity(a_fade_opacity);float fade_change=fade_opacity[1] > 0.5 ? u_fade_change :-u_fade_change;float interpolated_fade_opacity=max(0.0,min(occlusion_fade,fade_opacity[0]+fade_change));v_data0=a_tex/u_texsize;v_data1=vec3(gamma_scale,size,interpolated_fade_opacity);}"),bt=It("#define SDF_PX 8.0\n#define SDF 1.0\n#define ICON 0.0\nuniform bool u_is_halo;uniform sampler2D u_texture;uniform sampler2D u_texture_icon;uniform highp float u_gamma_scale;uniform lowp float u_device_pixel_ratio;varying vec4 v_data0;varying vec4 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nfloat fade_opacity=v_data1[2];if (v_data1.w==ICON) {vec2 tex_icon=v_data0.zw;lowp float alpha=opacity*fade_opacity;gl_FragColor=texture2D(u_texture_icon,tex_icon)*alpha;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\nreturn;}vec2 tex=v_data0.xy;float EDGE_GAMMA=0.105/u_device_pixel_ratio;float gamma_scale=v_data1.x;float size=v_data1.y;float fontScale=size/24.0;lowp vec4 color=fill_color;highp float gamma=EDGE_GAMMA/(fontScale*u_gamma_scale);lowp float buff=(256.0-64.0)/256.0;if (u_is_halo) {color=halo_color;gamma=(halo_blur*1.19/SDF_PX+EDGE_GAMMA)/(fontScale*u_gamma_scale);buff=(6.0-halo_width/fontScale)/SDF_PX;}lowp float dist=texture2D(u_texture,tex).a;highp float gamma_scaled=gamma*gamma_scale;highp float alpha=smoothstep(buff-gamma_scaled,buff+gamma_scaled,dist);gl_FragColor=color*(alpha*opacity*fade_opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","attribute vec4 a_pos_offset;attribute vec4 a_data;attribute vec3 a_projected_pos;attribute float a_fade_opacity;uniform bool u_is_size_zoom_constant;uniform bool u_is_size_feature_constant;uniform highp float u_size_t;uniform highp float u_size;uniform mat4 u_matrix;uniform mat4 u_label_plane_matrix;uniform mat4 u_coord_matrix;uniform bool u_is_text;uniform bool u_pitch_with_map;uniform highp float u_pitch;uniform bool u_rotate_symbol;uniform highp float u_aspect_ratio;uniform highp float u_camera_to_center_distance;uniform float u_fade_change;uniform vec2 u_texsize;uniform vec2 u_texsize_icon;varying vec4 v_data0;varying vec4 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nvec2 a_pos=a_pos_offset.xy;vec2 a_offset=a_pos_offset.zw;vec2 a_tex=a_data.xy;vec2 a_size=a_data.zw;float a_size_min=floor(a_size[0]*0.5);float is_sdf=a_size[0]-2.0*a_size_min;highp float segment_angle=-a_projected_pos[2];float size;if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {size=mix(a_size_min,a_size[1],u_size_t)/128.0;} else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {size=a_size_min/128.0;} else {size=u_size;}float h=elevation(a_pos);vec4 projectedPoint=u_matrix*vec4(a_pos,h,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float distance_ratio=u_pitch_with_map ?\ncamera_to_anchor_distance/u_camera_to_center_distance :\nu_camera_to_center_distance/camera_to_anchor_distance;highp float perspective_ratio=clamp(\n0.5+0.5*distance_ratio,0.0,1.5);size*=perspective_ratio;float fontScale=size/24.0;highp float symbol_rotation=0.0;if (u_rotate_symbol) {vec4 offsetProjectedPoint=u_matrix*vec4(a_pos+vec2(1,0),h,1);vec2 a=projectedPoint.xy/projectedPoint.w;vec2 b=offsetProjectedPoint.xy/offsetProjectedPoint.w;symbol_rotation=atan((b.y-a.y)/u_aspect_ratio,b.x-a.x);}highp float angle_sin=sin(segment_angle+symbol_rotation);highp float angle_cos=cos(segment_angle+symbol_rotation);mat2 rotation_matrix=mat2(angle_cos,-1.0*angle_sin,angle_sin,angle_cos);vec4 projected_pos=u_label_plane_matrix*vec4(a_projected_pos.xy,h,1.0);float z=0.0;vec2 offset=rotation_matrix*(a_offset/32.0*fontScale);\n#ifdef PITCH_WITH_MAP_TERRAIN\nvec4 tile_pos=u_label_plane_matrix_inv*vec4(a_projected_pos.xy+offset,0.0,1.0);z=elevation(tile_pos.xy);\n#endif\nfloat occlusion_fade=occlusionFade(projectedPoint);gl_Position=mix(u_coord_matrix*vec4(projected_pos.xy/projected_pos.w+offset,z,1.0),AWAY,float(projectedPoint.w <=0.0 || occlusion_fade==0.0));float gamma_scale=gl_Position.w;vec2 fade_opacity=unpack_opacity(a_fade_opacity);float fade_change=fade_opacity[1] > 0.5 ? u_fade_change :-u_fade_change;float interpolated_fade_opacity=max(0.0,min(occlusion_fade,fade_opacity[0]+fade_change));v_data0.xy=a_tex/u_texsize;v_data0.zw=a_tex/u_texsize_icon;v_data1=vec4(gamma_scale,size,interpolated_fade_opacity,is_sdf);}"),wt=It("uniform sampler2D u_image0;varying vec2 v_pos0;void main() {gl_FragColor=texture2D(u_image0,v_pos0);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform float u_skirt_height;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos0;const float skirtOffset=24575.0;void main() {v_pos0=a_texture_pos/8192.0;float skirt=float(a_pos.x >=skirtOffset);float elevation=elevation(a_texture_pos)-skirt*u_skirt_height;vec2 decodedPos=a_pos-vec2(skirt*skirtOffset,0.0);gl_Position=u_matrix*vec4(decodedPos,elevation,1.0);}"),Tt=It("#ifdef GL_ES\nprecision highp float;\n#endif\nvec4 pack_depth(float ndc_z) {float depth=ndc_z*0.5+0.5;const vec4 bit_shift=vec4(256.0*256.0*256.0,256.0*256.0,256.0,1.0);const vec4 bit_mask =vec4(0.0,1.0/256.0,1.0/256.0,1.0/256.0);vec4 res=fract(depth*bit_shift);res-=res.xxyz*bit_mask;return res;}varying float v_depth;void main() {gl_FragColor=pack_depth(v_depth);}","uniform mat4 u_matrix;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying float v_depth;void main() {float elevation=elevation(a_texture_pos);gl_Position=u_matrix*vec4(a_pos,elevation,1.0);v_depth=gl_Position.z/gl_Position.w;}"),Et=It("\nvarying lowp vec3 v_uv;uniform lowp samplerCube u_cubemap;uniform lowp float u_opacity;uniform highp float u_temporal_offset;uniform highp vec3 u_sun_direction;highp vec3 hash(highp vec2 p) {highp vec3 p3=fract(vec3(p.xyx)*vec3(443.8975,397.2973,491.1871));p3+=dot(p3,p3.yxz+19.19);return fract(vec3((p3.x+p3.y)*p3.z,(p3.x+p3.z)*p3.y,(p3.y+p3.z)*p3.x));}vec3 dither(vec3 color,highp vec2 seed) {vec3 rnd=hash(seed)+hash(seed+0.59374)-0.5;color.rgb+=rnd/255.0;return color;}float sun_disk(highp vec3 ray_direction,highp vec3 sun_direction) {highp float cos_angle=dot(normalize(ray_direction),sun_direction);const highp float cos_sun_angular_diameter=0.99996192306;const highp float smoothstep_delta=1e-5;return smoothstep(\ncos_sun_angular_diameter-smoothstep_delta,cos_sun_angular_diameter+smoothstep_delta,cos_angle);}float map(float value,float start,float end,float new_start,float new_end) {return ((value-start)*(new_end-new_start))/(end-start)+new_start;}void main() {vec3 uv=v_uv;const float y_bias=0.015;uv.y+=y_bias;uv.y=pow(abs(uv.y),1.0/5.0);uv.y=map(uv.y,0.0,1.0,-1.0,1.0);vec3 sky_color=textureCube(u_cubemap,uv).rgb;sky_color.rgb=dither(sky_color.rgb,gl_FragCoord.xy+u_temporal_offset);sky_color+=0.1*sun_disk(v_uv,u_sun_direction);gl_FragColor=vec4(sky_color*u_opacity,u_opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}",Xe),Ct=It("varying highp vec3 v_uv;uniform lowp sampler2D u_color_ramp;uniform lowp vec3 u_center_direction;uniform lowp float u_radius;uniform lowp float u_opacity;uniform highp float u_temporal_offset;highp vec3 hash(highp vec2 p) {highp vec3 p3=fract(vec3(p.xyx)*vec3(443.8975,397.2973,491.1871));p3+=dot(p3,p3.yxz+19.19);return fract(vec3((p3.x+p3.y)*p3.z,(p3.x+p3.z)*p3.y,(p3.y+p3.z)*p3.x));}vec3 dither(vec3 color,highp vec2 seed) {vec3 rnd=hash(seed)+hash(seed+0.59374)-0.5;color.rgb+=rnd/255.0;return color;}void main() {float progress=acos(dot(normalize(v_uv),u_center_direction))/u_radius;vec4 color=texture2D(u_color_ramp,vec2(progress,0.5))*u_opacity;color.rgb=dither(color.rgb,gl_FragCoord.xy+u_temporal_offset);gl_FragColor=color;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}",Xe),St=It("\nvarying highp vec3 v_position;uniform highp float u_sun_intensity;uniform highp float u_luminance;uniform lowp vec3 u_sun_direction;uniform highp vec4 u_color_tint_r;uniform highp vec4 u_color_tint_m;\n#ifdef GL_ES\nprecision highp float;\n#endif\n#define BETA_R vec3(5.5e-6,13.0e-6,22.4e-6)\n#define BETA_M vec3(21e-6,21e-6,21e-6)\n#define MIE_G 0.76\n#define DENSITY_HEIGHT_SCALE_R 8000.0\n#define DENSITY_HEIGHT_SCALE_M 1200.0\n#define PLANET_RADIUS 6360e3\n#define ATMOSPHERE_RADIUS 6420e3\n#define SAMPLE_STEPS 10\n#define DENSITY_STEPS 4\nfloat ray_sphere_exit(vec3 orig,vec3 dir,float radius) {float a=dot(dir,dir);float b=2.0*dot(dir,orig);float c=dot(orig,orig)-radius*radius;float d=sqrt(b*b-4.0*a*c);return (-b+d)/(2.0*a);}vec3 extinction(vec2 density) {return exp(-vec3(BETA_R*u_color_tint_r.a*density.x+BETA_M*u_color_tint_m.a*density.y));}vec2 local_density(vec3 point) {float height=max(length(point)-PLANET_RADIUS,0.0);float exp_r=exp(-height/DENSITY_HEIGHT_SCALE_R);float exp_m=exp(-height/DENSITY_HEIGHT_SCALE_M);return vec2(exp_r,exp_m);}float phase_ray(float cos_angle) {return (3.0/(16.0*PI))*(1.0+cos_angle*cos_angle);}float phase_mie(float cos_angle) {return (3.0/(8.0*PI))*((1.0-MIE_G*MIE_G)*(1.0+cos_angle*cos_angle))/((2.0+MIE_G*MIE_G)*pow(1.0+MIE_G*MIE_G-2.0*MIE_G*cos_angle,1.5));}vec2 density_to_atmosphere(vec3 point,vec3 light_dir) {float ray_len=ray_sphere_exit(point,light_dir,ATMOSPHERE_RADIUS);float step_len=ray_len/float(DENSITY_STEPS);vec2 density_point_to_atmosphere=vec2(0.0);for (int i=0; i < DENSITY_STEPS;++i) {vec3 point_on_ray=point+light_dir*((float(i)+0.5)*step_len);density_point_to_atmosphere+=local_density(point_on_ray)*step_len;;}return density_point_to_atmosphere;}vec3 atmosphere(vec3 ray_dir,vec3 sun_direction,float sun_intensity) {vec2 density_orig_to_point=vec2(0.0);vec3 scatter_r=vec3(0.0);vec3 scatter_m=vec3(0.0);vec3 origin=vec3(0.0,PLANET_RADIUS,0.0);float ray_len=ray_sphere_exit(origin,ray_dir,ATMOSPHERE_RADIUS);float step_len=ray_len/float(SAMPLE_STEPS);for (int i=0; i < SAMPLE_STEPS;++i) {vec3 point_on_ray=origin+ray_dir*((float(i)+0.5)*step_len);vec2 density=local_density(point_on_ray)*step_len;density_orig_to_point+=density;vec2 density_point_to_atmosphere=density_to_atmosphere(point_on_ray,sun_direction);vec2 density_orig_to_atmosphere=density_orig_to_point+density_point_to_atmosphere;vec3 extinction=extinction(density_orig_to_atmosphere);scatter_r+=density.x*extinction;scatter_m+=density.y*extinction;}float cos_angle=dot(ray_dir,sun_direction);float phase_r=phase_ray(cos_angle);float phase_m=phase_mie(cos_angle);vec3 beta_r=BETA_R*u_color_tint_r.rgb*u_color_tint_r.a;vec3 beta_m=BETA_M*u_color_tint_m.rgb*u_color_tint_m.a;return (scatter_r*phase_r*beta_r+scatter_m*phase_m*beta_m)*sun_intensity;}const float A=0.15;const float B=0.50;const float C=0.10;const float D=0.20;const float E=0.02;const float F=0.30;vec3 uncharted2_tonemap(vec3 x) {return ((x*(A*x+C*B)+D*E)/(x*(A*x+B)+D*F))-E/F;}void main() {vec3 ray_direction=v_position;ray_direction.y=pow(ray_direction.y,5.0);const float y_bias=0.015;ray_direction.y+=y_bias;vec3 color=atmosphere(normalize(ray_direction),u_sun_direction,u_sun_intensity);float white_scale=1.0748724675633854;color=uncharted2_tonemap((log2(2.0/pow(u_luminance,4.0)))*color)*white_scale;gl_FragColor=vec4(color,1.0);}","attribute highp vec3 a_pos_3f;uniform mat3 u_matrix_3f;varying highp vec3 v_position;float map(float value,float start,float end,float new_start,float new_end) {return ((value-start)*(new_end-new_start))/(end-start)+new_start;}void main() {vec4 pos=vec4(u_matrix_3f*a_pos_3f,1.0);v_position=pos.xyz;v_position.y*=-1.0;v_position.y=map(v_position.y,-1.0,1.0,0.0,1.0);gl_Position=vec4(a_pos_3f.xy,0.0,1.0);}");function It(e,t,i){const o=/#pragma mapbox: ([\w]+) ([\w]+) ([\w]+) ([\w]+)/g,a=t.match(/attribute (highp |mediump |lowp )?([\w]+) ([\w]+)/g),r=e.match(/uniform (highp |mediump |lowp )?([\w]+) ([\w]+)([\s]*)([\w]*)/g),n=t.match(/uniform (highp |mediump |lowp )?([\w]+) ([\w]+)([\s]*)([\w]*)/g);let s=n?n.concat(r):r;i||(s=He.staticUniforms.concat(s));const l={};return {fragmentSource:e=e.replace(o,(e,t,i,o,a)=>(l[a]=!0,"define"===t?`\n#ifndef HAS_UNIFORM_u_${a}\nvarying ${i} ${o} ${a};\n#else\nuniform ${i} ${o} u_${a};\n#endif\n`:`\n#ifdef HAS_UNIFORM_u_${a}\n ${i} ${o} ${a} = u_${a};\n#endif\n`)),vertexSource:t=t.replace(o,(e,t,i,o,a)=>{const r="float"===o?"vec2":"vec4",n=a.match(/color/)?"color":r;return l[a]?"define"===t?`\n#ifndef HAS_UNIFORM_u_${a}\nuniform lowp float u_${a}_t;\nattribute ${i} ${r} a_${a};\nvarying ${i} ${o} ${a};\n#else\nuniform ${i} ${o} u_${a};\n#endif\n`:"vec4"===n?`\n#ifndef HAS_UNIFORM_u_${a}\n ${a} = a_${a};\n#else\n ${i} ${o} ${a} = u_${a};\n#endif\n`:`\n#ifndef HAS_UNIFORM_u_${a}\n ${a} = unpack_mix_${n}(a_${a}, u_${a}_t);\n#else\n ${i} ${o} ${a} = u_${a};\n#endif\n`:"define"===t?`\n#ifndef HAS_UNIFORM_u_${a}\nuniform lowp float u_${a}_t;\nattribute ${i} ${r} a_${a};\n#else\nuniform ${i} ${o} u_${a};\n#endif\n`:"vec4"===n?`\n#ifndef HAS_UNIFORM_u_${a}\n ${i} ${o} ${a} = a_${a};\n#else\n ${i} ${o} ${a} = u_${a};\n#endif\n`:`\n#ifndef HAS_UNIFORM_u_${a}\n ${i} ${o} ${a} = unpack_mix_${n}(a_${a}, u_${a}_t);\n#else\n ${i} ${o} ${a} = u_${a};\n#endif\n`}),staticAttributes:a,staticUniforms:s}}var Pt=Object.freeze({__proto__:null,get preludeTerrain(){return He},prelude:Ke,background:Ye,backgroundPattern:Je,circle:Qe,clippingMask:et,heatmap:tt,heatmapTexture:it,collisionBox:ot,collisionCircle:at,debug:rt,fill:nt,fillOutline:st,fillOutlinePattern:lt,fillPattern:ct,fillExtrusion:ht,fillExtrusionPattern:ut,hillshadePrepare:dt,hillshade:_t,line:mt,lineGradient:pt,linePattern:ft,lineSDF:gt,raster:vt,symbolIcon:xt,symbolSDF:yt,symbolTextAndIcon:bt,terrainRaster:wt,terrainDepth:Tt,skybox:Et,skyboxGradient:Ct,skyboxCapture:St});class Mt{constructor(){this.boundProgram=null,this.boundLayoutVertexBuffer=null,this.boundPaintVertexBuffers=[],this.boundIndexBuffer=null,this.boundVertexOffset=null,this.boundDynamicVertexBuffer=null,this.vao=null;}bind(e,t,i,o,a,r,n,s){this.context=e;let l=this.boundPaintVertexBuffers.length!==o.length;for(let e=0;!l&&e{const a=i.paint.get("hillshade-shadow-color"),r=i.paint.get("hillshade-highlight-color"),n=i.paint.get("hillshade-accent-color");let s=i.paint.get("hillshade-illumination-direction")*(Math.PI/180);"viewport"===i.paint.get("hillshade-illumination-anchor")&&(s-=e.transform.angle);const l=!e.options.moving;return {u_matrix:o||e.transform.calculatePosMatrix(t.tileID.toUnwrapped(),l),u_image:0,u_latrange:zt(0,t.tileID),u_light:[i.paint.get("hillshade-exaggeration"),s],u_shadow:a,u_highlight:r,u_accent:n}})(t,o,a,t.terrain?i.posMatrix:null);u.draw(l,c.TRIANGLES,r,n,s,e.CullFaceMode.disabled,d,a.id,t.rasterBoundsBuffer,t.quadTriangleIndexBuffer,t.rasterBoundsSegments);}function Dt(t,i,o){if(!i.needsDEMTextureUpload)return;const a=t.context,r=a.gl;a.pixelStoreUnpackPremultiplyAlpha.set(!1),i.demTexture=i.demTexture||t.getTileTexture(o.stride);const n=o.getPixels();i.demTexture?i.demTexture.update(n,{premultiply:!1}):i.demTexture=new e.Texture(a,n,r.RGBA,{premultiply:!1}),i.needsDEMTextureUpload=!1;}function Lt(t,i,o,a,r,n){const s=t.context,l=s.gl;if(!i.dem)return;const c=i.dem;if(s.activeTexture.set(l.TEXTURE1),Dt(t,i,c),!i.demTexture)return;i.demTexture.bind(l.NEAREST,l.CLAMP_TO_EDGE);const h=c.dim;s.activeTexture.set(l.TEXTURE0);let u=i.fbo;if(!u){const t=new e.Texture(s,{width:h,height:h,data:null},l.RGBA);t.bind(l.LINEAR,l.CLAMP_TO_EDGE),u=i.fbo=s.createFramebuffer(h,h,!0),u.colorAttachment.set(t.texture);}s.bindFramebuffer.set(u.framebuffer),s.viewport.set([0,0,h,h]),t.useProgram("hillshadePrepare").draw(s,l.TRIANGLES,a,r,n,e.CullFaceMode.disabled,((t,i)=>{const o=i.stride,a=e.create();return e.ortho(a,0,e.EXTENT,-e.EXTENT,0,0,1),e.translate(a,a,[0,-e.EXTENT,0]),{u_matrix:a,u_image:1,u_dimension:[o,o],u_zoom:t.overscaledZ,u_unpack:i.unpackVector}})(i.tileID,c),o.id,t.rasterBoundsBuffer,t.quadTriangleIndexBuffer,t.rasterBoundsSegments),i.needsHillshadePrepare=!1;}const Rt=(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_image0:new e.Uniform1i(t,i.u_image0),u_skirt_height:new e.Uniform1f(t,i.u_skirt_height)}),kt=(e,t)=>({u_matrix:e,u_image0:0,u_skirt_height:t}),Bt=new class{constructor(){this.operations={};}newMorphing(e,t,i,o,a){if(e in this.operations){const t=this.operations[e];t.to.tileID.key!==i.tileID.key&&(t.queued=i);}else this.operations[e]={startTime:o,phase:0,duration:a,from:t,to:i,queued:null};}getMorphValuesForProxy(e){if(!(e in this.operations))return null;const t=this.operations[e];return {from:t.from,to:t.to,phase:t.phase}}update(e){for(const t in this.operations){const i=this.operations[t];for(i.phase=(e-i.startTime)/i.duration;i.phase>=1||!this._validOp(i);)if(!this._nextOp(i,e)){delete this.operations[t];break}}}_nextOp(e,t){return !!e.queued&&(e.from=e.to,e.to=e.queued,e.queued=null,e.phase=0,e.startTime=t,!0)}_validOp(e){return e.from.hasData()&&e.to.hasData()}},Ft={0:null,1:"TERRAIN_VERTEX_MORPHING"};function Ot(t,i,o,a,r){const n=t.context,s=n.gl;let l=t.useProgram("terrainRaster"),c=0;const h=t.colorModeForRenderPass(),u=new e.DepthMode(s.LEQUAL,e.DepthMode.ReadWrite,t.depthRangeFor3D);Bt.update(r);const d=t.transform,_=6*Math.pow(1.5,22-d.zoom)*i.exaggeration();var m,p,f;for(const g of a){const a=o.getTile(g),v=e.StencilMode.disabled,x=i.prevTerrainTileForTile[g.key],y=i.terrainTileForTile[g.key];f=y,null!=(p=x)&&null!=f&&p.hasData()&&f.hasData()&&null!=p.demTexture&&null!=f.demTexture&&p.tileID.key!==f.tileID.key&&Bt.newMorphing(g.key,x,y,r,250),n.activeTexture.set(s.TEXTURE0),a.texture.bind(s.LINEAR,s.CLAMP_TO_EDGE,s.LINEAR_MIPMAP_NEAREST);const b=Bt.getMorphValuesForProxy(g.key),w=b?1:0;let T;b&&(T={morphing:{srcDemTile:b.from,dstDemTile:b.to,phase:e.easeCubicInOut(b.phase)}});const E=kt(g.posMatrix,Ut(g.canonical,d.renderWorldCopies)?_/10:_);c!==(m=w)&&(l=t.useProgram("terrainRaster",null,Ft[m]),c=m),i.setupElevationDraw(a,l,T),l.draw(n,s.TRIANGLES,u,v,h,e.CullFaceMode.backCCW,E,"terrain_raster",i.gridBuffer,i.gridIndexBuffer,i.gridSegments);}}function Ut(e,t){const i=1<({u_matrix:e});function Zt(t,i,o,a,r){if(r>0){const n=e.browser.now(),s=(n-t.timeAdded)/r,l=i?(n-i.timeAdded)/r:-1,c=o.getSource(),h=a.coveringZoomLevel({tileSize:c.tileSize,roundZoom:c.roundZoom}),u=!i||Math.abs(i.tileID.overscaledZ-h)>Math.abs(t.tileID.overscaledZ-h),d=u&&t.refreshedUponExpiration?1:e.clamp(u?s:1-l,0,1);return t.refreshedUponExpiration&&s>=1&&(t.refreshedUponExpiration=!1),i?{opacity:1,mix:1-d}:{opacity:d,mix:0}}return {opacity:1,mix:0}}const Gt={fill:!0,line:!0,background:!0,hillshade:!0,raster:!0};class qt extends e.SourceCache{constructor(e){const t=R("proxy",{type:"geojson",maxzoom:e.transform.maxZoom},new E(q(),null),e.style);super("proxy",t,!1),t.setEventedParent(this),this.map=this.getSource().map=e,this.used=this._sourceLoaded=!0,this.renderCache=[],this.renderCachePool=[],this.proxyCachedFBO={};}update(t,i,o){if(t.freezeTileCoverage)return;this.transform=t;const a=t.coveringTiles({tileSize:this._source.tileSize,minzoom:this._source.minzoom,maxzoom:this._source.maxzoom,roundZoom:this._source.roundZoom,reparseOverscaled:this._source.reparseOverscaled,useElevationData:!0}).reduce((i,o)=>{if(i[o.key]="",!this._tiles[o.key]){const i=new e.Tile(o,this._source.tileSize*o.overscaleFactor(),t.tileZoom);i.state="loaded",this._tiles[o.key]=i;}return i},{});for(const e in this._tiles)e in a||(this.freeFBO(e),this._tiles[e].state="unloaded",delete this._tiles[e]);}freeFBO(e){const t=this.proxyCachedFBO[e];void 0!==t&&(this.renderCachePool.push(t),delete this.proxyCachedFBO[e]);}deallocRenderCache(){this.renderCache.forEach(e=>e.fb.destroy()),this.renderCache=[],this.renderCachePool=[],this.proxyCachedFBO={};}}class Vt extends e.OverscaledTileID{constructor(e,t,i){super(e.overscaledZ,e.wrap,e.canonical.z,e.canonical.x,e.canonical.y),this.proxyTileKey=t,this.posMatrix=i;}}class $t extends e.Elevation{constructor(t,i){super(),this.painter=t,this.terrainTileForTile={},this.prevTerrainTileForTile={};const[o,a,r]=function(t){const i=new e.StructArrayLayout4i8,o=new e.StructArrayLayout3ui6;i.reserve(17161),o.reserve(33800);const a=e.EXTENT/128,r=e.EXTENT+a/2,n=r+a;for(let t=-a;tr||t<0||t>r?24575:0,n=e.clamp(Math.round(o),0,e.EXTENT),s=e.clamp(Math.round(t),0,e.EXTENT);i.emplaceBack(n+a,s,n,s);}const s=(e,t)=>{const i=131*t+e;o.emplaceBack(i+1,i,i+131),o.emplaceBack(i+131,i+131+1,i+1);};for(let e=1;e<129;e++)for(let t=1;t<129;t++)s(t,e);return [0,129].forEach(e=>{for(let t=0;t<130;t++)s(t,e),s(e,t);}),[i,o,32768]}(),n=t.context;this.gridBuffer=n.createVertexBuffer(o,A.members),this.gridIndexBuffer=n.createIndexBuffer(a),this.gridSegments=e.SegmentVector.simpleSegment(0,0,o.length,a.length),this.gridNoSkirtSegments=e.SegmentVector.simpleSegment(0,0,o.length,r),this.proxyCoords=[],this.proxiedCoords={},this._visibleDemTiles=[],this._sourceTilesOverlap={},this.proxySourceCache=new qt(i.map),this.orthoMatrix=e.create(),e.ortho(this.orthoMatrix,0,e.EXTENT,0,e.EXTENT,0,1);const s=n.gl;this._overlapStencilMode=new e.StencilMode({func:s.GEQUAL,mask:255},0,255,s.KEEP,s.KEEP,s.REPLACE),this._previousZoom=t.transform.zoom,this.pool=[],this._findCoveringTileCache={},this._tilesDirty={},this.style=i,i.on("data",this._onStyleDataEvent.bind(this));}update(t,i,o){if(t&&t.terrain){this.style!==t&&(t.on("data",this._onStyleDataEvent.bind(this)),this.style=t),this.enabled=!0;const a=t.terrain.properties;this.sourceCache=t._getSourceCache(a.get("source")),this._exaggeration=a.get("exaggeration");const r=()=>{this.sourceCache.used&&e.warnOnce(`Raster DEM source '${this.sourceCache.id}' is used both for terrain and as layer source.\n`+"This leads to lower resolution of hillshade. For full hillshade resolution but higher memory consumption, define another raster DEM source.");const t=this.sourceCache.getSource().tileSize/128,o=this.proxySourceCache.getSource().tileSize;this.sourceCache.update(i,t*o,!0),this._findCoveringTileCache[this.sourceCache.id]={};};this.sourceCache.usedForTerrain||(this._findCoveringTileCache[this.sourceCache.id]={},this.sourceCache.usedForTerrain=!0,r(),this._initializing=!0),r(),i.updateElevation(!o),this._findCoveringTileCache[this.proxySourceCache.id]={},this.proxySourceCache.update(i),this._depthDone=!1,this._emptyDEMTextureDirty=!0;}else this._disable();}_onStyleDataEvent(e){e.coord&&"source"===e.dataType?this._clearRenderCacheForTile(e.sourceCacheId,e.coord):"style"===e.dataType&&(this._invalidateRenderCache=!0);}_disable(){if(this.enabled&&(this.enabled=!1,this.proxySourceCache.deallocRenderCache(),this.painter.style))for(const e in this.painter.style._sourceCaches)this.painter.style._sourceCaches[e].usedForTerrain=!1;}destroy(){this._disable(),this._emptyDEMTexture&&this._emptyDEMTexture.destroy(),this.pool.forEach(e=>e.fb.destroy()),this.pool=[],this._depthFBO&&(this._depthFBO.destroy(),delete this._depthFBO,delete this._depthTexture);}_source(){return this.enabled?this.sourceCache:null}exaggeration(){return this._exaggeration}get visibleDemTiles(){return this._visibleDemTiles}get drapeBufferSize(){const e=2*this.proxySourceCache.getSource().tileSize;return [e,e]}updateTileBinding(t){if(!this.enabled)return;this.prevTerrainTileForTile=this.terrainTileForTile;const i=this.proxySourceCache,o=this.painter.transform;this._initializing&&(this._initializing=0===o._centerAltitude&&-1===this.getAtPoint(e.MercatorCoordinate.fromLngLat(o.center),-1),this._emptyDEMTextureDirty=!this._initializing);const a=this.painter.options;this.drapeFirst=(a.zooming||a.moving||a.rotating||!!this.forceDrapeFirst)&&!this._invalidateRenderCache,this._invalidateRenderCache=!1;const r=this.proxyCoords=i.getIds().map(e=>{const t=i.getTileByID(e).tileID;return t.posMatrix=o.calculatePosMatrix(t.toUnwrapped()),t});!function(t,i){const o=i.transform.pointCoordinate(i.transform.getCameraPoint()),a=new e.Point(o.x,o.y);t.sort((t,i)=>{if(i.overscaledZ-t.overscaledZ)return i.overscaledZ-t.overscaledZ;const o=new e.Point(t.canonical.x+(1<{this.proxyToSource[e.key]={};}),this.terrainTileForTile={};const s=this.painter.style._sourceCaches;for(const e in s){const i=s[e];if(!i.used)continue;if(i!==this.sourceCache&&(this._findCoveringTileCache[i.id]={}),this._setupProxiedCoordsForOrtho(i,t[e],n),i.usedForTerrain)continue;const o=t[e];i.getSource().reparseOverscaled&&this._assignTerrainTiles(o);}this.proxiedCoords[i.id]=r.map(e=>new Vt(e,e.key,this.orthoMatrix)),this._assignTerrainTiles(r),this._prepareDEMTextures(),this._setupRenderCache(n),this.drapeFirstPending=this.drapeFirst,this.renderingToTexture=!1,this._initFBOPool(),this._updateTimestamp=e.browser.now();const l={};this._visibleDemTiles=[];for(const e of this.proxyCoords){const t=this.terrainTileForTile[e.key];if(!t)continue;const i=t.tileID.key;i in l||(this._visibleDemTiles.push(t),l[i]=i);}}_assignTerrainTiles(e){this._initializing||e.forEach(e=>{if(this.terrainTileForTile[e.key])return;const t=this._findTileCoveringTileID(e,this.sourceCache);t&&(this.terrainTileForTile[e.key]=t);});}_prepareDEMTextures(){const e=this.painter.context,t=e.gl;for(const i in this.terrainTileForTile){const o=this.terrainTileForTile[i],a=o.dem;!a||o.demTexture&&!o.needsDEMTextureUpload||(e.activeTexture.set(t.TEXTURE1),Dt(this.painter,o,a));}}_prepareDemTileUniforms(e,t,i,o){if(!t||null==t.demTexture)return !1;const a=e.tileID.canonical,r=Math.pow(2,t.tileID.canonical.z-a.z),n=o||"";return i[`u_dem_tl${n}`]=[a.x*r%1,a.y*r%1],i[`u_dem_scale${n}`]=r,!0}get emptyDEMTexture(){return !this._emptyDEMTextureDirty&&this._emptyDEMTexture?this._emptyDEMTexture:this._updateEmptyDEMTexture()}_getLoadedAreaMinimum(){let e=0;const t=this._visibleDemTiles.reduce((t,i)=>{if(!i.dem)return t;const o=i.dem.tree.minimums[0];return o>0&&e++,t+o},0);return e?t/e:0}_updateEmptyDEMTexture(){const t=this.painter.context,i=t.gl;t.activeTexture.set(i.TEXTURE2);const o=this._getLoadedAreaMinimum(),a={width:1,height:1,data:new Uint8Array(e.DEMData.pack(o,this.sourceCache.getSource().encoding))};this._emptyDEMTextureDirty=!1;let r=this._emptyDEMTexture;return r?r.update(a,{premultiply:!1}):r=this._emptyDEMTexture=new e.Texture(t,a,i.RGBA,{premultiply:!1}),r}setupElevationDraw(t,i,o){const a=this.painter.context,r=a.gl,n=(s=this.sourceCache.getSource().encoding,{u_dem:2,u_dem_prev:4,u_dem_unpack:e.DEMData.getUnpackVector(s),u_dem_tl:[0,0],u_dem_tl_prev:[0,0],u_dem_scale:0,u_dem_scale_prev:0,u_dem_size:0,u_dem_lerp:1,u_depth:3,u_depth_size_inv:[0,0],u_exaggeration:0});var s;n.u_dem_size=this.sourceCache.getSource().tileSize,n.u_exaggeration=this.exaggeration();let l=null,c=null,h=1;if(o&&o.morphing){const e=o.morphing.srcDemTile,i=o.morphing.dstDemTile;h=o.morphing.phase,e&&i&&(this._prepareDemTileUniforms(t,e,n,"_prev")&&(c=e),this._prepareDemTileUniforms(t,i,n)&&(l=i));}if(c&&l?(a.activeTexture.set(r.TEXTURE2),l.demTexture.bind(r.NEAREST,r.CLAMP_TO_EDGE,r.NEAREST),a.activeTexture.set(r.TEXTURE4),c.demTexture.bind(r.NEAREST,r.CLAMP_TO_EDGE,r.NEAREST),n.u_dem_lerp=h):(l=this.terrainTileForTile[t.tileID.key],a.activeTexture.set(r.TEXTURE2),(this._prepareDemTileUniforms(t,l,n)?l.demTexture:this.emptyDEMTexture).bind(r.NEAREST,r.CLAMP_TO_EDGE,r.NEAREST)),o&&o.useDepthForOcclusion&&(a.activeTexture.set(r.TEXTURE3),this._depthTexture.bind(r.NEAREST,r.CLAMP_TO_EDGE,r.NEAREST),n.u_depth_size_inv=[1/this._depthFBO.width,1/this._depthFBO.height]),o&&o.useMeterToDem&&l){const t=(1<{i.bindFramebuffer.set(null),i.viewport.set([0,0,t.width,t.height]),this.renderingToTexture=!1;},n=t.currentLayer;let s=n,l=[];const c=t.style._order;let h=0;for(let u=0;us){if(!o&&!a)break;s++;}if(o)continue;const r=this.painter.style._getLayerSourceCache(e),n=r?this.proxyToSource[d.key][r.id]:[d];if(!n)continue;const l=n;i.viewport.set([0,0,p.fb.width,p.fb.height]),f!==(r?r.id:null)&&(this._setupStencil(n,e,r),f=r?r.id:null),t.renderLayer(t,r,e,l);}p.dirty=this.renderedToTile,this.renderedToTile&&l.push(_.tileID),5===h&&(h=0,l.length>0&&(r(),Ot(t,this,o,l,this._updateTimestamp),this.renderingToTexture=!0,l=[]));}r(),l.length>0&&Ot(t,this,o,l,this._updateTimestamp),t.currentLayer=this.drapeFirst?-1:s;}raycast(e,t,i){if(!this._visibleDemTiles)return null;const o=this._visibleDemTiles.filter(e=>e.dem).map(o=>{const a=o.tileID,r=Math.pow(2,a.overscaledZ),{x:n,y:s}=a.canonical,l=n/r,c=(n+1)/r,h=s/r,u=(s+1)/r;return {minx:l,miny:h,maxx:c,maxy:u,t:o.dem.tree.raycastRoot(l,h,c,u,e,t,i),tile:o}});o.sort((e,t)=>(null!==e.t?e.t:Number.MAX_VALUE)-(null!==t.t?t.t:Number.MAX_VALUE));for(const a of o){if(null==a.t)return null;const o=a.tile.dem.tree.raycast(a.minx,a.miny,a.maxx,a.maxy,e,t,i);if(null!=o)return o}return null}_createFBO(){const t=this.painter.context,i=t.gl,o=this.drapeBufferSize;t.activeTexture.set(i.TEXTURE0);const a=new e.Texture(t,{width:o[0],height:o[1],data:null},i.RGBA);a.bind(i.LINEAR,i.CLAMP_TO_EDGE);const r=t.createFramebuffer(o[0],o[1],!1);return r.colorAttachment.set(a.texture),t.extTextureFilterAnisotropic&&!t.extTextureFilterAnisotropicForceOff&&i.texParameterf(i.TEXTURE_2D,t.extTextureFilterAnisotropic.TEXTURE_MAX_ANISOTROPY_EXT,t.extTextureFilterAnisotropicMax),{fb:r,tex:a,dirty:!1,ref:1}}_initFBOPool(){for(;this.pool.length{const t=this.painter.style._layers[e],i=!t.isHidden(this.painter.transform.zoom),o=t.getCrossfadeParameters();return "custom"!==t.type&&!i&&!!o&&1!==o.t})}_clearRasterFadeFromRenderCache(){for(const e in this.painter.style._sourceCaches)if(!(this.painter.style._sourceCaches[e]._source instanceof z))return;for(let e=0;et.renderCachePool.length){const e=Object.values(t.proxyCachedFBO);t.proxyCachedFBO={},t.renderCachePool=t.renderCachePool.concat(e);}return}this._clearRasterFadeFromRenderCache();const i=this.proxyCoords,o=this._tilesDirty;for(let a=i.length-1;a>=0;a--){const r=i[a];if(t.getTileByID(r.key),void 0!==t.proxyCachedFBO[r.key]){const i=e[r.key],a=this.proxyToSource[r.key];let n=0;for(const e in a){const t=a[e],r=i[e];if(!r||r.length!==t.length||t.some((t,i)=>t!==r[i]||o[e]&&o[e].hasOwnProperty(t.key))){n=-1;break}++n;}t.renderCache[t.proxyCachedFBO[r.key]].dirty=n<0||n!==Object.values(i).length;}else {let e=t.renderCachePool.pop();void 0===e&&t.renderCache.length<50&&(e=t.renderCache.length,t.renderCache.push(this._createFBO())),void 0!==e&&(t.proxyCachedFBO[r.key]=e,t.renderCache[e].dirty=!0);}}this._tilesDirty={};}_setupStencil(t,i,o){if(!o||!this._sourceTilesOverlap[o.id])return void(this._overlapStencilType&&(this._overlapStencilType=!1));const a=this.painter.context,r=a.gl;if(t.length<=1)return void(this._overlapStencilType=!1);const n=this.currentFBO,s=n.fb;let l;if(i.isTileClipped())l=t.length,this._overlapStencilMode.test={func:r.EQUAL,mask:255},this._overlapStencilType="Clip";else {if(!(t[0].overscaledZ>t[t.length-1].overscaledZ))return void(this._overlapStencilType=!1);l=1,this._overlapStencilMode.test={func:r.GREATER,mask:255},this._overlapStencilType="Mask";}if(!s.depthAttachment){const t=a.createRenderbuffer(a.gl.DEPTH_STENCIL,s.width,s.height);s.depthAttachment=new e.DepthStencilAttachment(a,s.framebuffer),s.depthAttachment.set(t),a.clear({stencil:0});}n.ref+l>255&&(a.clear({stencil:0}),n.ref=0),n.ref+=l,this._overlapStencilMode.ref=n.ref,i.isTileClipped()&&this._renderTileClippingMasks(t,this._overlapStencilMode.ref);}stencilModeForRTTOverlap(t){return this.renderingToTexture&&this._overlapStencilType?("Clip"===this._overlapStencilType&&(this._overlapStencilMode.ref=this.painter._tileClippingMaskIDs[t.key]),this._overlapStencilMode):e.StencilMode.disabled}_renderTileClippingMasks(t,i){const o=this.painter,a=this.painter.context,r=a.gl;o._tileClippingMaskIDs={},a.setColorMode(e.ColorMode.disabled),a.setDepthMode(e.DepthMode.disabled);const n=o.useProgram("clippingMask");for(const s of t){const t=o._tileClippingMaskIDs[s.key]=--i;n.draw(a,r.TRIANGLES,e.DepthMode.disabled,new e.StencilMode({func:r.ALWAYS,mask:0},t,255,r.KEEP,r.KEEP,r.REPLACE),e.ColorMode.disabled,e.CullFaceMode.disabled,Nt(s.posMatrix),"$clipping",o.tileExtentBuffer,o.quadTriangleIndexBuffer,o.tileExtentSegments);}}pointCoordinate(t){const i=this.painter.transform;if(t.x<0||t.x>i.width||t.y<0||t.y>i.height)return null;const o=[t.x,t.y,1,1];e.transformMat4(o,o,i.pixelMatrixInverse),e.scale$1(o,o,1/o[3]),o[0]/=i.worldSize,o[1]/=i.worldSize;const a=i._camera.position,r=e.mercatorZfromAltitude(1,i.center.lat),n=[a[0],a[1],a[2]/r,0],s=e.subtract([],o.slice(0,3),n);e.normalize(s,s);const l=this.raycast(n,s,this._exaggeration);return null!==l&&l?(e.scaleAndAdd(n,n,s,l),n[3]=n[2],n[2]*=r,n):null}drawDepth(){const t=this.painter,i=t.context,o=this.proxySourceCache,a=Math.ceil(t.width),r=Math.ceil(t.height);if(!this._depthFBO||this._depthFBO.width===a&&this._depthFBO.height===r||(this._depthFBO.destroy(),delete this._depthFBO,delete this._depthTexture),!this._depthFBO){const t=i.gl,o=i.createFramebuffer(a,r,!0);i.activeTexture.set(t.TEXTURE0);const n=new e.Texture(i,{width:a,height:r,data:null},t.RGBA);n.bind(t.NEAREST,t.CLAMP_TO_EDGE),o.colorAttachment.set(n.texture);const s=i.createRenderbuffer(i.gl.DEPTH_COMPONENT16,a,r);o.depthAttachment.set(s),this._depthFBO=o,this._depthTexture=n;}i.bindFramebuffer.set(this._depthFBO.framebuffer),i.viewport.set([0,0,a,r]),function(t,i,o,a){const r=t.context,n=r.gl;r.clear({depth:1});const s=t.useProgram("terrainDepth"),l=new e.DepthMode(n.LESS,e.DepthMode.ReadWrite,t.depthRangeFor3D);for(const t of a){const a=o.getTile(t),c=kt(t.posMatrix,0);i.setupElevationDraw(a,s),s.draw(r,n.TRIANGLES,l,e.StencilMode.disabled,e.ColorMode.unblended,e.CullFaceMode.backCCW,c,"terrain_depth",i.gridBuffer,i.gridIndexBuffer,i.gridNoSkirtSegments);}}(t,this,o,this.proxyCoords),i.bindFramebuffer.set(null),i.viewport.set([0,0,t.width,t.height]),this._depthDone=!0;}_isLayerDrapedOverTerrain(e){return !!this.enabled&&Gt.hasOwnProperty(e.type)}_setupProxiedCoordsForOrtho(e,t,i){if(e.getSource()instanceof D)return this._setupProxiedCoordsForImageSource(e,t,i);this._findCoveringTileCache[e.id]=this._findCoveringTileCache[e.id]||{};const o=this.proxiedCoords[e.id]=[],a=this.proxyCoords;for(let t=0;t(e.min.x=Math.min(e.min.x,t.x-s.x),e.min.y=Math.min(e.min.y,t.y-s.y),e.max.x=Math.max(e.max.x,t.x-s.x),e.max.y=Math.max(e.max.y,t.y-s.y),e),{min:new e.Point(Number.MAX_VALUE,Number.MAX_VALUE),max:new e.Point(-Number.MAX_VALUE,-Number.MAX_VALUE)}),c=(t,i)=>{const o=t.wrap+t.canonical.x/(1<n+l.max.x||a+rs+l.max.y};for(let e=0;ee.key===i.tileID.key);if(e)return e}if(i.tileID.key!==t.key){const o=t.canonical.z-i.tileID.canonical.z;let r,n,s;a=e.create();const l=i.tileID.wrap-t.wrap<0?(r=e.EXTENT>>o,n=r*((i.tileID.canonical.x<=a){const o=t.canonical.z-a;i.getSource().reparseOverscaled?(s=Math.max(t.canonical.z+2,i.transform.tileZoom),n=new e.OverscaledTileID(s,t.wrap,a,t.canonical.x>>o,t.canonical.y>>o)):0!==o&&(s=a,n=new e.OverscaledTileID(s,t.wrap,a,t.canonical.x>>o,t.canonical.y>>o));}n.key!==t.key&&(c.push(n.key),o=i.getTile(n));}const h=e=>{c.forEach(t=>{a[t]=e;}),c.length=0;};for(s-=1;s>=l&&(!o||!o.hasData());s--){o&&h(o.tileID.key);const e=n.calculateScaledKey(s);if(o=i.getTileByID(e),o&&o.hasData())break;const t=a[e];if(null===t)break;void 0===t?c.push(e):o=i.getTileByID(t);}return h(o?o.tileID.key:null),o&&o.hasData()?o:null}findDEMTileFor(e){return this.enabled?this._findTileCoveringTileID(e,this.sourceCache):null}prepareDrawTile(e){this.renderedToTile||(this.renderedToTile=!0);}_clearRenderCacheForTile(e,t){let i=this._tilesDirty[e];i||(i=this._tilesDirty[e]={}),i[t.key]=!0;}}function jt(e){const t=[];for(let i=0;i`#define ${e}`));const f=p.concat(Ke.fragmentSource,o.fragmentSource).join("\n"),g=p.concat(Ke.vertexSource,He.vertexSource,o.vertexSource).join("\n"),v=s.createShader(s.FRAGMENT_SHADER);if(s.isContextLost())return void(this.failedToCreate=!0);s.shaderSource(v,f),s.compileShader(v),s.attachShader(this.program,v);const x=s.createShader(s.VERTEX_SHADER);if(s.isContextLost())return void(this.failedToCreate=!0);s.shaderSource(x,g),s.compileShader(x),s.attachShader(this.program,x),this.attributes={};const y={};this.numAttributes=h.length;for(let e=0;e({u_dem:new e.Uniform1i(t,i.u_dem),u_dem_prev:new e.Uniform1i(t,i.u_dem_prev),u_dem_unpack:new e.Uniform4f(t,i.u_dem_unpack),u_dem_tl:new e.Uniform2f(t,i.u_dem_tl),u_dem_scale:new e.Uniform1f(t,i.u_dem_scale),u_dem_tl_prev:new e.Uniform2f(t,i.u_dem_tl_prev),u_dem_scale_prev:new e.Uniform1f(t,i.u_dem_scale_prev),u_dem_size:new e.Uniform1f(t,i.u_dem_size),u_dem_lerp:new e.Uniform1f(t,i.u_dem_lerp),u_exaggeration:new e.Uniform1f(t,i.u_exaggeration),u_depth:new e.Uniform1i(t,i.u_depth),u_depth_size_inv:new e.Uniform2f(t,i.u_depth_size_inv),u_meter_to_dem:new e.Uniform1f(t,i.u_meter_to_dem),u_label_plane_matrix_inv:new e.UniformMatrix4f(t,i.u_label_plane_matrix_inv)}))(t,y));}setTerrainUniformValues(e,t){if(!this.terrainUniforms)return;const i=this.terrainUniforms;if(!this.failedToCreate){e.program.set(this.program);for(const e in t)i[e].set(t[e]);}}draw(e,t,i,o,a,r,n,s,l,c,h,u,d,_,m,p){const f=e.gl;if(this.failedToCreate)return;e.program.set(this.program),e.setDepthMode(i),e.setStencilMode(o),e.setColorMode(a),e.setCullFace(r);for(const e in this.fixedUniforms)this.fixedUniforms[e].set(n[e]);_&&_.setUniforms(e,this.binderUniforms,u,{zoom:d});const g={[f.LINES]:2,[f.TRIANGLES]:3,[f.LINE_STRIP]:1}[t];for(const i of h.get()){const o=i.vaos||(i.vaos={});(o[s]||(o[s]=new Mt)).bind(e,this,l,_?_.getPaintVertexBuffers():[],c,i.vertexOffset,m,p),f.drawElements(t,i.primitiveLength*g,f.UNSIGNED_SHORT,i.primitiveOffset*g*2);}}}function Xt(e,t,i){const o=1/C(i,1,t.transform.tileZoom),a=Math.pow(2,i.tileID.overscaledZ),r=i.tileSize*Math.pow(2,t.transform.tileZoom)/a,n=r*(i.tileID.canonical.x+i.tileID.wrap*a),s=r*i.tileID.canonical.y;return {u_image:0,u_texsize:i.imageAtlasTexture.size,u_scale:[o,e.fromScale,e.toScale],u_fade:e.t,u_pixel_coord_upper:[n>>16,s>>16],u_pixel_coord_lower:[65535&n,65535&s]}}const Ht=(t,i,o,a)=>{const r=i.style.light,n=r.properties.get("position"),s=[n.x,n.y,n.z],l=e.create$1();"viewport"===r.properties.get("anchor")&&(e.fromRotation(l,-i.transform.angle),e.transformMat3(s,s,l));const c=r.properties.get("color");return {u_matrix:t,u_lightpos:s,u_lightintensity:r.properties.get("intensity"),u_lightcolor:[c.r,c.g,c.b],u_vertical_gradient:+o,u_opacity:a}},Kt=(t,i,o,a,r,n,s)=>e.extend(Ht(t,i,o,a),Xt(n,i,s),{u_height_factor:-Math.pow(2,r.overscaledZ)/s.tileSize/8}),Yt=e=>({u_matrix:e}),Jt=(t,i,o,a)=>e.extend(Yt(t),Xt(o,i,a)),Qt=(e,t)=>({u_matrix:e,u_world:t}),ei=(t,i,o,a,r)=>e.extend(Jt(t,i,o,a),{u_world:r}),ti=(t,i,o,a)=>{const r=t.transform;let n;if("map"===a.paint.get("circle-pitch-alignment")){const e=C(o,1,r.zoom);n=[e,e];}else n=r.pixelsToGLUnits;return {u_camera_to_center_distance:r.cameraToCenterDistance,u_matrix:t.translatePosMatrix(i.posMatrix,o,a.paint.get("circle-translate"),a.paint.get("circle-translate-anchor")),u_device_pixel_ratio:e.browser.devicePixelRatio,u_extrude_scale:n}},ii=e=>{const t=[];return "map"===e.paint.get("circle-pitch-alignment")&&t.push("PITCH_WITH_MAP"),"map"===e.paint.get("circle-pitch-scale")&&t.push("SCALE_WITH_MAP"),t},oi=(t,i,o)=>{const a=e.EXTENT/o.tileSize;return {u_matrix:t,u_camera_to_center_distance:i.cameraToCenterDistance,u_extrude_scale:[i.pixelsToGLUnits[0]/a,i.pixelsToGLUnits[1]/a]}},ai=(e,t,i=1)=>({u_matrix:e,u_color:t,u_overlay:0,u_overlay_scale:i}),ri=(e,t,i,o)=>({u_matrix:e,u_extrude_scale:C(t,1,i),u_intensity:o}),ni=(t,i,o,a)=>{const r=t.transform;return {u_matrix:ui(t,i,o,a),u_ratio:1/C(i,1,r.zoom),u_device_pixel_ratio:e.browser.devicePixelRatio,u_units_to_pixels:[1/r.pixelsToGLUnits[0],1/r.pixelsToGLUnits[1]]}},si=(t,i,o,a,r)=>e.extend(ni(t,i,o,a),{u_image:0,u_image_height:r}),li=(t,i,o,a,r)=>{const n=t.transform,s=hi(i,n);return {u_matrix:ui(t,i,o,r),u_texsize:i.imageAtlasTexture.size,u_ratio:1/C(i,1,n.zoom),u_device_pixel_ratio:e.browser.devicePixelRatio,u_image:0,u_scale:[s,a.fromScale,a.toScale],u_fade:a.t,u_units_to_pixels:[1/n.pixelsToGLUnits[0],1/n.pixelsToGLUnits[1]]}},ci=(t,i,o,a,r,n)=>{const s=t.lineAtlas,l=hi(i,t.transform),c="round"===o.layout.get("line-cap"),h=s.getDash(a.from,c),u=s.getDash(a.to,c),d=h.width*r.fromScale,_=u.width*r.toScale;return e.extend(ni(t,i,o,n),{u_patternscale_a:[l/d,-h.height/2],u_patternscale_b:[l/_,-u.height/2],u_sdfgamma:s.width/(256*Math.min(d,_)*e.browser.devicePixelRatio)/2,u_image:0,u_tex_y_a:h.y,u_tex_y_b:u.y,u_mix:r.t})};function hi(e,t){return 1/C(e,1,t.tileZoom)}function ui(e,t,i,o){return e.translatePosMatrix(o||t.tileID.posMatrix,t,i.paint.get("line-translate"),i.paint.get("line-translate-anchor"))}const di=(e,t,i,o,a)=>{return {u_matrix:e,u_tl_parent:t,u_scale_parent:i,u_buffer_scale:1,u_fade_t:o.mix,u_opacity:o.opacity*a.paint.get("raster-opacity"),u_image0:0,u_image1:1,u_brightness_low:a.paint.get("raster-brightness-min"),u_brightness_high:a.paint.get("raster-brightness-max"),u_saturation_factor:(n=a.paint.get("raster-saturation"),n>0?1-1/(1.001-n):-n),u_contrast_factor:(r=a.paint.get("raster-contrast"),r>0?1/(1-r):1+r),u_spin_weights:_i(a.paint.get("raster-hue-rotate"))};var r,n;};function _i(e){e*=Math.PI/180;const t=Math.sin(e),i=Math.cos(e);return [(2*i+1)/3,(-Math.sqrt(3)*t-i+1)/3,(Math.sqrt(3)*t-i+1)/3]}const mi=(e,t,i,o,a,r,n,s,l,c)=>{const h=a.transform;return {u_is_size_zoom_constant:+("constant"===e||"source"===e),u_is_size_feature_constant:+("constant"===e||"camera"===e),u_size_t:t?t.uSizeT:0,u_size:t?t.uSize:0,u_camera_to_center_distance:h.cameraToCenterDistance,u_pitch:h.pitch/360*2*Math.PI,u_rotate_symbol:+i,u_aspect_ratio:h.width/h.height,u_fade_change:a.options.fadeDuration?a.symbolFadeChange:1,u_matrix:r,u_label_plane_matrix:n,u_coord_matrix:s,u_is_text:+l,u_pitch_with_map:+o,u_texsize:c,u_texture:0}},pi=(t,i,o,a,r,n,s,l,c,h,u)=>{const d=r.transform;return e.extend(mi(t,i,o,a,r,n,s,l,c,h),{u_gamma_scale:a?Math.cos(d._pitch)*d.cameraToCenterDistance:1,u_device_pixel_ratio:e.browser.devicePixelRatio,u_is_halo:+u})},fi=(t,i,o,a,r,n,s,l,c,h)=>e.extend(pi(t,i,o,a,r,n,s,l,!0,c,!0),{u_texsize_icon:h,u_texture_icon:1}),gi=(e,t,i)=>({u_matrix:e,u_opacity:t,u_color:i}),vi=(t,i,o,a,r,n)=>e.extend(function(e,t,i,o){const a=i.imageManager.getPattern(e.from.toString()),r=i.imageManager.getPattern(e.to.toString()),{width:n,height:s}=i.imageManager.getPixelSize(),l=Math.pow(2,o.tileID.overscaledZ),c=o.tileSize*Math.pow(2,i.transform.tileZoom)/l,h=c*(o.tileID.canonical.x+o.tileID.wrap*l),u=c*o.tileID.canonical.y;return {u_image:0,u_pattern_tl_a:a.tl,u_pattern_br_a:a.br,u_pattern_tl_b:r.tl,u_pattern_br_b:r.br,u_texsize:[n,s],u_mix:t.t,u_pattern_size_a:a.displaySize,u_pattern_size_b:r.displaySize,u_scale_a:t.fromScale,u_scale_b:t.toScale,u_tile_units_to_pixels:1/C(o,1,i.transform.tileZoom),u_pixel_coord_upper:[h>>16,u>>16],u_pixel_coord_lower:[65535&h,65535&u]}}(a,n,o,r),{u_matrix:t,u_opacity:i}),xi={fillExtrusion:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_lightpos:new e.Uniform3f(t,i.u_lightpos),u_lightintensity:new e.Uniform1f(t,i.u_lightintensity),u_lightcolor:new e.Uniform3f(t,i.u_lightcolor),u_vertical_gradient:new e.Uniform1f(t,i.u_vertical_gradient),u_opacity:new e.Uniform1f(t,i.u_opacity)}),fillExtrusionPattern:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_lightpos:new e.Uniform3f(t,i.u_lightpos),u_lightintensity:new e.Uniform1f(t,i.u_lightintensity),u_lightcolor:new e.Uniform3f(t,i.u_lightcolor),u_vertical_gradient:new e.Uniform1f(t,i.u_vertical_gradient),u_height_factor:new e.Uniform1f(t,i.u_height_factor),u_image:new e.Uniform1i(t,i.u_image),u_texsize:new e.Uniform2f(t,i.u_texsize),u_pixel_coord_upper:new e.Uniform2f(t,i.u_pixel_coord_upper),u_pixel_coord_lower:new e.Uniform2f(t,i.u_pixel_coord_lower),u_scale:new e.Uniform3f(t,i.u_scale),u_fade:new e.Uniform1f(t,i.u_fade),u_opacity:new e.Uniform1f(t,i.u_opacity)}),fill:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix)}),fillPattern:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_image:new e.Uniform1i(t,i.u_image),u_texsize:new e.Uniform2f(t,i.u_texsize),u_pixel_coord_upper:new e.Uniform2f(t,i.u_pixel_coord_upper),u_pixel_coord_lower:new e.Uniform2f(t,i.u_pixel_coord_lower),u_scale:new e.Uniform3f(t,i.u_scale),u_fade:new e.Uniform1f(t,i.u_fade)}),fillOutline:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_world:new e.Uniform2f(t,i.u_world)}),fillOutlinePattern:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_world:new e.Uniform2f(t,i.u_world),u_image:new e.Uniform1i(t,i.u_image),u_texsize:new e.Uniform2f(t,i.u_texsize),u_pixel_coord_upper:new e.Uniform2f(t,i.u_pixel_coord_upper),u_pixel_coord_lower:new e.Uniform2f(t,i.u_pixel_coord_lower),u_scale:new e.Uniform3f(t,i.u_scale),u_fade:new e.Uniform1f(t,i.u_fade)}),circle:(t,i)=>({u_camera_to_center_distance:new e.Uniform1f(t,i.u_camera_to_center_distance),u_extrude_scale:new e.Uniform2f(t,i.u_extrude_scale),u_device_pixel_ratio:new e.Uniform1f(t,i.u_device_pixel_ratio),u_matrix:new e.UniformMatrix4f(t,i.u_matrix)}),collisionBox:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_camera_to_center_distance:new e.Uniform1f(t,i.u_camera_to_center_distance),u_extrude_scale:new e.Uniform2f(t,i.u_extrude_scale)}),collisionCircle:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_inv_matrix:new e.UniformMatrix4f(t,i.u_inv_matrix),u_camera_to_center_distance:new e.Uniform1f(t,i.u_camera_to_center_distance),u_viewport_size:new e.Uniform2f(t,i.u_viewport_size)}),debug:(t,i)=>({u_color:new e.UniformColor(t,i.u_color),u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_overlay:new e.Uniform1i(t,i.u_overlay),u_overlay_scale:new e.Uniform1f(t,i.u_overlay_scale)}),clippingMask:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix)}),heatmap:(t,i)=>({u_extrude_scale:new e.Uniform1f(t,i.u_extrude_scale),u_intensity:new e.Uniform1f(t,i.u_intensity),u_matrix:new e.UniformMatrix4f(t,i.u_matrix)}),heatmapTexture:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_world:new e.Uniform2f(t,i.u_world),u_image:new e.Uniform1i(t,i.u_image),u_color_ramp:new e.Uniform1i(t,i.u_color_ramp),u_opacity:new e.Uniform1f(t,i.u_opacity)}),hillshade:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_image:new e.Uniform1i(t,i.u_image),u_latrange:new e.Uniform2f(t,i.u_latrange),u_light:new e.Uniform2f(t,i.u_light),u_shadow:new e.UniformColor(t,i.u_shadow),u_highlight:new e.UniformColor(t,i.u_highlight),u_accent:new e.UniformColor(t,i.u_accent)}),hillshadePrepare:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_image:new e.Uniform1i(t,i.u_image),u_dimension:new e.Uniform2f(t,i.u_dimension),u_zoom:new e.Uniform1f(t,i.u_zoom),u_unpack:new e.Uniform4f(t,i.u_unpack)}),line:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_ratio:new e.Uniform1f(t,i.u_ratio),u_device_pixel_ratio:new e.Uniform1f(t,i.u_device_pixel_ratio),u_units_to_pixels:new e.Uniform2f(t,i.u_units_to_pixels)}),lineGradient:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_ratio:new e.Uniform1f(t,i.u_ratio),u_device_pixel_ratio:new e.Uniform1f(t,i.u_device_pixel_ratio),u_units_to_pixels:new e.Uniform2f(t,i.u_units_to_pixels),u_image:new e.Uniform1i(t,i.u_image),u_image_height:new e.Uniform1f(t,i.u_image_height)}),linePattern:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_texsize:new e.Uniform2f(t,i.u_texsize),u_ratio:new e.Uniform1f(t,i.u_ratio),u_device_pixel_ratio:new e.Uniform1f(t,i.u_device_pixel_ratio),u_image:new e.Uniform1i(t,i.u_image),u_units_to_pixels:new e.Uniform2f(t,i.u_units_to_pixels),u_scale:new e.Uniform3f(t,i.u_scale),u_fade:new e.Uniform1f(t,i.u_fade)}),lineSDF:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_ratio:new e.Uniform1f(t,i.u_ratio),u_device_pixel_ratio:new e.Uniform1f(t,i.u_device_pixel_ratio),u_units_to_pixels:new e.Uniform2f(t,i.u_units_to_pixels),u_patternscale_a:new e.Uniform2f(t,i.u_patternscale_a),u_patternscale_b:new e.Uniform2f(t,i.u_patternscale_b),u_sdfgamma:new e.Uniform1f(t,i.u_sdfgamma),u_image:new e.Uniform1i(t,i.u_image),u_tex_y_a:new e.Uniform1f(t,i.u_tex_y_a),u_tex_y_b:new e.Uniform1f(t,i.u_tex_y_b),u_mix:new e.Uniform1f(t,i.u_mix)}),raster:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_tl_parent:new e.Uniform2f(t,i.u_tl_parent),u_scale_parent:new e.Uniform1f(t,i.u_scale_parent),u_buffer_scale:new e.Uniform1f(t,i.u_buffer_scale),u_fade_t:new e.Uniform1f(t,i.u_fade_t),u_opacity:new e.Uniform1f(t,i.u_opacity),u_image0:new e.Uniform1i(t,i.u_image0),u_image1:new e.Uniform1i(t,i.u_image1),u_brightness_low:new e.Uniform1f(t,i.u_brightness_low),u_brightness_high:new e.Uniform1f(t,i.u_brightness_high),u_saturation_factor:new e.Uniform1f(t,i.u_saturation_factor),u_contrast_factor:new e.Uniform1f(t,i.u_contrast_factor),u_spin_weights:new e.Uniform3f(t,i.u_spin_weights)}),symbolIcon:(t,i)=>({u_is_size_zoom_constant:new e.Uniform1i(t,i.u_is_size_zoom_constant),u_is_size_feature_constant:new e.Uniform1i(t,i.u_is_size_feature_constant),u_size_t:new e.Uniform1f(t,i.u_size_t),u_size:new e.Uniform1f(t,i.u_size),u_camera_to_center_distance:new e.Uniform1f(t,i.u_camera_to_center_distance),u_pitch:new e.Uniform1f(t,i.u_pitch),u_rotate_symbol:new e.Uniform1i(t,i.u_rotate_symbol),u_aspect_ratio:new e.Uniform1f(t,i.u_aspect_ratio),u_fade_change:new e.Uniform1f(t,i.u_fade_change),u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_label_plane_matrix:new e.UniformMatrix4f(t,i.u_label_plane_matrix),u_coord_matrix:new e.UniformMatrix4f(t,i.u_coord_matrix),u_is_text:new e.Uniform1i(t,i.u_is_text),u_pitch_with_map:new e.Uniform1i(t,i.u_pitch_with_map),u_texsize:new e.Uniform2f(t,i.u_texsize),u_texture:new e.Uniform1i(t,i.u_texture)}),symbolSDF:(t,i)=>({u_is_size_zoom_constant:new e.Uniform1i(t,i.u_is_size_zoom_constant),u_is_size_feature_constant:new e.Uniform1i(t,i.u_is_size_feature_constant),u_size_t:new e.Uniform1f(t,i.u_size_t),u_size:new e.Uniform1f(t,i.u_size),u_camera_to_center_distance:new e.Uniform1f(t,i.u_camera_to_center_distance),u_pitch:new e.Uniform1f(t,i.u_pitch),u_rotate_symbol:new e.Uniform1i(t,i.u_rotate_symbol),u_aspect_ratio:new e.Uniform1f(t,i.u_aspect_ratio),u_fade_change:new e.Uniform1f(t,i.u_fade_change),u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_label_plane_matrix:new e.UniformMatrix4f(t,i.u_label_plane_matrix),u_coord_matrix:new e.UniformMatrix4f(t,i.u_coord_matrix),u_is_text:new e.Uniform1i(t,i.u_is_text),u_pitch_with_map:new e.Uniform1i(t,i.u_pitch_with_map),u_texsize:new e.Uniform2f(t,i.u_texsize),u_texture:new e.Uniform1i(t,i.u_texture),u_gamma_scale:new e.Uniform1f(t,i.u_gamma_scale),u_device_pixel_ratio:new e.Uniform1f(t,i.u_device_pixel_ratio),u_is_halo:new e.Uniform1i(t,i.u_is_halo)}),symbolTextAndIcon:(t,i)=>({u_is_size_zoom_constant:new e.Uniform1i(t,i.u_is_size_zoom_constant),u_is_size_feature_constant:new e.Uniform1i(t,i.u_is_size_feature_constant),u_size_t:new e.Uniform1f(t,i.u_size_t),u_size:new e.Uniform1f(t,i.u_size),u_camera_to_center_distance:new e.Uniform1f(t,i.u_camera_to_center_distance),u_pitch:new e.Uniform1f(t,i.u_pitch),u_rotate_symbol:new e.Uniform1i(t,i.u_rotate_symbol),u_aspect_ratio:new e.Uniform1f(t,i.u_aspect_ratio),u_fade_change:new e.Uniform1f(t,i.u_fade_change),u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_label_plane_matrix:new e.UniformMatrix4f(t,i.u_label_plane_matrix),u_coord_matrix:new e.UniformMatrix4f(t,i.u_coord_matrix),u_is_text:new e.Uniform1i(t,i.u_is_text),u_pitch_with_map:new e.Uniform1i(t,i.u_pitch_with_map),u_texsize:new e.Uniform2f(t,i.u_texsize),u_texsize_icon:new e.Uniform2f(t,i.u_texsize_icon),u_texture:new e.Uniform1i(t,i.u_texture),u_texture_icon:new e.Uniform1i(t,i.u_texture_icon),u_gamma_scale:new e.Uniform1f(t,i.u_gamma_scale),u_device_pixel_ratio:new e.Uniform1f(t,i.u_device_pixel_ratio),u_is_halo:new e.Uniform1i(t,i.u_is_halo)}),background:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_opacity:new e.Uniform1f(t,i.u_opacity),u_color:new e.UniformColor(t,i.u_color)}),backgroundPattern:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_opacity:new e.Uniform1f(t,i.u_opacity),u_image:new e.Uniform1i(t,i.u_image),u_pattern_tl_a:new e.Uniform2f(t,i.u_pattern_tl_a),u_pattern_br_a:new e.Uniform2f(t,i.u_pattern_br_a),u_pattern_tl_b:new e.Uniform2f(t,i.u_pattern_tl_b),u_pattern_br_b:new e.Uniform2f(t,i.u_pattern_br_b),u_texsize:new e.Uniform2f(t,i.u_texsize),u_mix:new e.Uniform1f(t,i.u_mix),u_pattern_size_a:new e.Uniform2f(t,i.u_pattern_size_a),u_pattern_size_b:new e.Uniform2f(t,i.u_pattern_size_b),u_scale_a:new e.Uniform1f(t,i.u_scale_a),u_scale_b:new e.Uniform1f(t,i.u_scale_b),u_pixel_coord_upper:new e.Uniform2f(t,i.u_pixel_coord_upper),u_pixel_coord_lower:new e.Uniform2f(t,i.u_pixel_coord_lower),u_tile_units_to_pixels:new e.Uniform1f(t,i.u_tile_units_to_pixels)}),terrainRaster:Rt,terrainDepth:Rt,skybox:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_sun_direction:new e.Uniform3f(t,i.u_sun_direction),u_cubemap:new e.Uniform1i(t,i.u_cubemap),u_opacity:new e.Uniform1f(t,i.u_opacity),u_temporal_offset:new e.Uniform1f(t,i.u_temporal_offset)}),skyboxGradient:(t,i)=>({u_matrix:new e.UniformMatrix4f(t,i.u_matrix),u_color_ramp:new e.Uniform1i(t,i.u_color_ramp),u_center_direction:new e.Uniform3f(t,i.u_center_direction),u_radius:new e.Uniform1f(t,i.u_radius),u_opacity:new e.Uniform1f(t,i.u_opacity),u_temporal_offset:new e.Uniform1f(t,i.u_temporal_offset)}),skyboxCapture:(t,i)=>({u_matrix_3f:new e.UniformMatrix3f(t,i.u_matrix_3f),u_sun_direction:new e.Uniform3f(t,i.u_sun_direction),u_sun_intensity:new e.Uniform1f(t,i.u_sun_intensity),u_color_tint_r:new e.Uniform4f(t,i.u_color_tint_r),u_color_tint_m:new e.Uniform4f(t,i.u_color_tint_m),u_luminance:new e.Uniform1f(t,i.u_luminance)})};let yi;function bi(t,i,o,a,r,n,s){const l=t.context,c=l.gl,h=t.useProgram("collisionBox"),u=[];let d=0,_=0;for(let m=0;m0){const i=e.create(),o=v;e.mul(i,g.placementInvProjMatrix,t.transform.glCoordMatrix),e.mul(i,i,g.placementViewportMatrix),u.push({circleArray:y,circleOffset:_,transform:o,invTransform:i}),d+=y.length/4,_=d;}x&&(t.terrain&&t.terrain.setupElevationDraw(f,h),h.draw(l,c.LINES,e.DepthMode.disabled,e.StencilMode.disabled,t.colorModeForRenderPass(),e.CullFaceMode.disabled,oi(v,t.transform,f),o.id,x.layoutVertexBuffer,x.indexBuffer,x.segments,null,t.transform.zoom,null,x.collisionVertexBuffer,x.collisionVertexBufferExt));}if(!s||!u.length)return;const m=t.useProgram("collisionCircle"),p=new e.StructArrayLayout2f1f2i16;p.resize(4*d),p._trim();let f=0;for(const e of u)for(let t=0;t=0&&(f[g.associatedIconIndex]={shiftedAnchor:I,angle:P});}else me(g.numGlyphs,m);}if(u){p.clear();const i=t.icon.placedSymbolArray;for(let t=0;te.getAtTileOffset(l,t.x,t.y):null);}const G=t.translatePosMatrix(l.posMatrix,a,n,s),q=v||r&&T||Z?wi:F,V=t.translatePosMatrix(U,a,n,s,!0),$=_&&0!==o.paint.get(r?"text-halo-width":"icon-halo-width").constantOr(1);let j;j=_?c.iconsInText?fi(w.kind,M,x,g,t,G,q,V,z,R):pi(w.kind,M,x,g,t,G,q,V,r,z,!0):mi(w.kind,M,x,g,t,G,q,V,r,z);const W={program:P,buffers:u,uniformValues:j,atlasTexture:A,atlasTextureIcon:k,atlasInterpolation:D,atlasInterpolationIcon:L,isSDF:_,hasHalo:$,tile:a,labelPlaneMatrixInv:O};if(y&&c.canOverlap){b=!0;const t=u.segments.get();for(const i of t)E.push({segments:new e.SegmentVector([i]),sortKey:i.sortKey,state:W});}else E.push({segments:u.segments,sortKey:0,state:W});}b&&E.sort((e,t)=>e.sortKey-t.sortKey);for(const e of E){const i=e.state;if(t.terrain&&t.terrain.setupElevationDraw(i.tile,i.program,{useDepthForOcclusion:!0,labelPlaneMatrixInv:i.labelPlaneMatrixInv}),_.activeTexture.set(m.TEXTURE0),i.atlasTexture.bind(i.atlasInterpolation,m.CLAMP_TO_EDGE),i.atlasTextureIcon&&(_.activeTexture.set(m.TEXTURE1),i.atlasTextureIcon&&i.atlasTextureIcon.bind(i.atlasInterpolationIcon,m.CLAMP_TO_EDGE)),i.isSDF){const a=i.uniformValues;i.hasHalo&&(a.u_is_halo=1,Ii(i.buffers,e.segments,o,t,i.program,w,u,d,a)),a.u_is_halo=0;}Ii(i.buffers,e.segments,o,t,i.program,w,u,d,i.uniformValues);}}function Ii(t,i,o,a,r,n,s,l,c){const h=a.context;r.draw(h,h.gl.TRIANGLES,n,s,l,e.CullFaceMode.disabled,c,o.id,t.layoutVertexBuffer,t.indexBuffer,i,o.paint,a.transform.zoom,t.programConfigurations.get(o.id),t.dynamicLayoutVertexBuffer,t.opacityVertexBuffer);}function Pi(t,i,o,a,r,n,s){const l=t.context.gl,c=o.paint.get("fill-pattern"),h=c&&c.constantOr(1),u=o.getCrossfadeParameters();let d,_,m,p,f;s?(_=h&&!o.getPaintProperty("fill-outline-color")?"fillOutlinePattern":"fillOutline",d=l.LINES):(_=h?"fillPattern":"fill",d=l.TRIANGLES);for(const g of a){const a=i.getTile(g);if(h&&!a.patternsLoaded())continue;const v=a.getBucket(o);if(!v)continue;t.prepareDrawTile(g);const x=v.programConfigurations.get(o.id),y=t.useProgram(_,x);h&&(t.context.activeTexture.set(l.TEXTURE0),a.imageAtlasTexture.bind(l.LINEAR,l.CLAMP_TO_EDGE),x.updatePaintBuffers(u));const b=c.constantOr(null);if(b&&a.imageAtlas){const e=a.imageAtlas,t=e.patternPositions[b.to.toString()],i=e.patternPositions[b.from.toString()];t&&i&&x.setConstantPatternPositions(t,i);}const w=t.translatePosMatrix(g.posMatrix,a,o.paint.get("fill-translate"),o.paint.get("fill-translate-anchor"));if(s){p=v.indexBuffer2,f=v.segments2;const e=t.terrain&&t.terrain.renderingToTexture?t.terrain.drapeBufferSize:[l.drawingBufferWidth,l.drawingBufferHeight];m="fillOutlinePattern"===_&&h?ei(w,t,u,a,e):Qt(w,e);}else p=v.indexBuffer,f=v.segments,m=h?Jt(w,t,u,a):Yt(w);y.draw(t.context,d,r,t.stencilModeForClipping(g),n,e.CullFaceMode.disabled,m,o.id,v.layoutVertexBuffer,p,f,o.paint,t.transform.zoom,x);}}function Mi(t,i,o,a,r,n,s){const l=t.context,c=l.gl,h=o.paint.get("fill-extrusion-pattern"),u=h.constantOr(1),d=o.getCrossfadeParameters(),_=o.paint.get("fill-extrusion-opacity");for(const m of a){const a=i.getTile(m),p=a.getBucket(o);if(!p)continue;const f=p.programConfigurations.get(o.id),g=t.useProgram(u?"fillExtrusionPattern":"fillExtrusion",f);if(t.terrain){const e=t.terrain;if(!p.enableTerrain)continue;if(e.setupElevationDraw(a,g,{useMeterToDem:!0}),zi(l,i,m,p,o,e),!p.centroidVertexBuffer){const e=g.attributes.a_centroid_pos;void 0!==e&&c.vertexAttrib2f(e,0,0);}}u&&(t.context.activeTexture.set(c.TEXTURE0),a.imageAtlasTexture.bind(c.LINEAR,c.CLAMP_TO_EDGE),f.updatePaintBuffers(d));const v=h.constantOr(null);if(v&&a.imageAtlas){const e=a.imageAtlas,t=e.patternPositions[v.to.toString()],i=e.patternPositions[v.from.toString()];t&&i&&f.setConstantPatternPositions(t,i);}const x=t.translatePosMatrix(m.posMatrix,a,o.paint.get("fill-extrusion-translate"),o.paint.get("fill-extrusion-translate-anchor")),y=o.paint.get("fill-extrusion-vertical-gradient"),b=u?Kt(x,t,y,_,m,d,a):Ht(x,t,y,_);g.draw(l,l.gl.TRIANGLES,r,n,s,e.CullFaceMode.backCCW,b,o.id,p.layoutVertexBuffer,p.indexBuffer,p.segments,o.paint,t.transform.zoom,f,t.terrain?p.centroidVertexBuffer:null);}}function zi(t,i,o,a,r,n){const s=[t=>{let i=t.canonical.x-1,o=t.wrap;return i<0&&(i=(1<{let i=t.canonical.x+1,o=t.wrap;return i===1<new e.OverscaledTileID(t.overscaledZ,t.wrap,t.canonical.z,t.canonical.x,(0===t.canonical.y?1<new e.OverscaledTileID(t.overscaledZ,t.wrap,t.canonical.z,t.canonical.x,t.canonical.y===(1<{const t=i.getSource().maxzoom;for(const o of [0,-1,1]){if(e.overscaledZ+o0&&e.overscaledZ(c[0]=Math.min(t.min.y,i.min.y),c[1]=Math.max(t.max.y,i.max.y),c[2]=e.EXTENT-i.min.x>t.max.x?i.min.x-e.EXTENT:t.max.x,c),u=(t,i)=>(c[0]=Math.min(t.min.x,i.min.x),c[1]=Math.max(t.max.x,i.max.x),c[2]=e.EXTENT-i.min.y>t.max.y?i.min.y-e.EXTENT:t.max.y,c),d=[(e,t)=>h(e,t),(e,t)=>h(t,e),(e,t)=>u(e,t),(e,t)=>u(t,e)],_=new e.Point(0,0);let m,p,f;const g=(t,i,a,r,s)=>{const l=[[r?a:t,r?t:a,0],[r?a:i,r?i:a,0]],c=s<0?e.EXTENT+s:s,h=[r?c:(t+i)/2,r?(t+i)/2:c,0];return 0===a&&s<0||0!==a&&s>0?n.getForTilePoints(f,[h],!0,p):l.push(h),n.getForTilePoints(o,l,!0,m),Math.max(l[0][2],l[1][2],h[2])/n.exaggeration()};for(let t=0;t<4;t++){const i=a.borders[t];if(0===i.length&&(a.borderDone[t]=!0),a.borderDone[t])continue;const r=f=s[t](o),c=l(r);if(!c||!c.enableTerrain)continue;if(p=n.findDEMTileFor(r),!p||!p.dem)continue;if(!m){const e=n.findDEMTileFor(o);if(!e||!e.dem)return;m=e;}const h=(t<2?1:5)-t,u=c.borders[h];let v=0;for(let o=0;on[0]+3));)c.borderDone[h]||c.encodeCentroid(void 0,s,!1),v++;if(s&&vn[1]-3)&&(o++,++v!==u.length);)s=c.featuresOnBorder[u[v]];if(s=c.featuresOnBorder[u[i]],r.intersectsCount()>1||s.intersectsCount()>1||1!==o){1!==o&&(v=i),a.encodeCentroid(void 0,r,!1),c.borderDone[h]||c.encodeCentroid(void 0,s,!1);continue}const l=d[t](r,s),m=t%2?e.EXTENT-1:0;_.x=g(l[0],Math.min(e.EXTENT-1,l[1]),m,t<2,l[2]),_.y=0,a.encodeCentroid(_,r,!1),c.borderDone[h]||c.encodeCentroid(_,s,!1);}else a.encodeCentroid(void 0,r,!1);}a.borderDone[t]=a.needsCentroidUpdate=!0,c.borderDone[h]||(c.borderDone[h]=c.needsCentroidUpdate=!0);}(a.needsCentroidUpdate||!a.centroidVertexBuffer&&0!==a.centroidVertexArray.length)&&a.uploadCentroid(t);}const Ai=new e.Color(1,0,0,1),Di=new e.Color(0,1,0,1),Li=new e.Color(0,0,1,1),Ri=new e.Color(1,0,1,1),ki=new e.Color(0,1,1,1);function Bi(e,t,i,o){Oi(e,0,t+i/2,e.transform.width,i,o);}function Fi(e,t,i,o){Oi(e,t-i/2,0,i,e.transform.height,o);}function Oi(t,i,o,a,r,n){const s=t.context,l=s.gl;l.enable(l.SCISSOR_TEST),l.scissor(i*e.browser.devicePixelRatio,o*e.browser.devicePixelRatio,a*e.browser.devicePixelRatio,r*e.browser.devicePixelRatio),s.clear({color:n}),l.disable(l.SCISSOR_TEST);}function Ui(t,i,o){const a=t.context,r=a.gl,n=o.posMatrix,s=t.useProgram("debug"),l=i.getTileByID(o.key);t.terrain&&t.terrain.setupElevationDraw(l,s);const c=e.DepthMode.disabled,h=e.StencilMode.disabled,u=t.colorModeForRenderPass();a.activeTexture.set(r.TEXTURE0),t.emptyTexture.bind(r.LINEAR,r.CLAMP_TO_EDGE),s.draw(a,r.LINE_STRIP,c,h,u,e.CullFaceMode.disabled,ai(n,e.Color.red),"$debug",t.debugBuffer,t.tileBorderIndexBuffer,t.debugSegments);const d=l.latestRawTileData,_=Math.floor((d&&d.byteLength||0)/1024),m=i.getTile(o).tileSize,p=512/Math.min(m,512)*(o.overscaledZ/t.transform.zoom)*.5;let f=o.canonical.toString();o.overscaledZ!==o.canonical.z&&(f+=` => ${o.overscaledZ}`),function(e,t){e.initDebugOverlayCanvas();const i=e.debugOverlayCanvas,o=e.context.gl,a=e.debugOverlayCanvas.getContext("2d");a.clearRect(0,0,i.width,i.height),a.shadowColor="white",a.shadowBlur=2,a.lineWidth=1.5,a.strokeStyle="white",a.textBaseline="top",a.font="bold 36px Open Sans, sans-serif",a.fillText(t,5,5),a.strokeText(t,5,5),e.debugOverlayTexture.update(i),e.debugOverlayTexture.bind(o.LINEAR,o.CLAMP_TO_EDGE);}(t,`${f} ${_}kb`),s.draw(a,r.TRIANGLES,c,h,e.ColorMode.alphaBlended,e.CullFaceMode.disabled,ai(n,e.Color.transparent,p),"$debug",t.debugBuffer,t.quadTriangleIndexBuffer,t.debugSegments);}const Ni=e.createLayout([{name:"a_pos_3f",components:3,type:"Float32"}]),{members:Zi}=Ni;function Gi(e,t,i,o){e.emplaceBack(t,i,o);}class qi{constructor(t){this.vertexArray=new e.StructArrayLayout3f12,this.indices=new e.StructArrayLayout3ui6,Gi(this.vertexArray,-1,-1,1),Gi(this.vertexArray,1,-1,1),Gi(this.vertexArray,-1,1,1),Gi(this.vertexArray,1,1,1),Gi(this.vertexArray,-1,-1,-1),Gi(this.vertexArray,1,-1,-1),Gi(this.vertexArray,-1,1,-1),Gi(this.vertexArray,1,1,-1),this.indices.emplaceBack(5,1,3),this.indices.emplaceBack(3,7,5),this.indices.emplaceBack(6,2,0),this.indices.emplaceBack(0,4,6),this.indices.emplaceBack(2,6,7),this.indices.emplaceBack(7,3,2),this.indices.emplaceBack(5,4,0),this.indices.emplaceBack(0,1,5),this.indices.emplaceBack(0,2,3),this.indices.emplaceBack(3,1,0),this.indices.emplaceBack(7,6,4),this.indices.emplaceBack(4,5,7),this.vertexBuffer=t.createVertexBuffer(this.vertexArray,Zi),this.indexBuffer=t.createIndexBuffer(this.indices),this.segment=e.SegmentVector.simpleSegment(0,0,36,12);}}function Vi(t,i,o,a,r,n){const s=t.gl,l=i.paint.get("sky-atmosphere-color"),c=i.paint.get("sky-atmosphere-halo-color"),h=i.paint.get("sky-atmosphere-sun-intensity"),u=((e,t,i,o,a)=>({u_matrix_3f:e,u_sun_direction:t,u_sun_intensity:i,u_color_tint_r:[o.r,o.g,o.b,o.a],u_color_tint_m:[a.r,a.g,a.b,a.a],u_luminance:5e-5}))(e.fromMat4([],a),r,h,l,c);s.framebufferTexture2D(s.FRAMEBUFFER,s.COLOR_ATTACHMENT0,s.TEXTURE_CUBE_MAP_POSITIVE_X+n,i.skyboxTexture,0),o.draw(t,s.TRIANGLES,e.DepthMode.disabled,e.StencilMode.disabled,e.ColorMode.unblended,e.CullFaceMode.frontCW,u,"skyboxCapture",i.skyboxGeometry.vertexBuffer,i.skyboxGeometry.indexBuffer,i.skyboxGeometry.segment);}const $i={symbol:function(t,i,o,a,r){if("translucent"!==t.renderPass)return;const n=e.StencilMode.disabled,s=t.colorModeForRenderPass();o.layout.get("text-variable-anchor")&&function(t,i,o,a,r,n,s){const l=i.transform,c="map"===r,h="map"===n;for(const r of t){const t=a.getTile(r),n=t.getBucket(o);if(!n||!n.text||!n.text.segments.get().length)continue;const u=e.evaluateSizeForZoom(n.textSizeData,l.zoom),d=C(t,1,i.transform.zoom),_=ie(r.posMatrix,h,c,i.transform,d),m="none"!==o.layout.get("icon-text-fit")&&n.hasIconData();if(u){const i=Math.pow(2,l.zoom-t.tileID.overscaledZ),o=l.elevation;Ei(n,c,h,s,e.symbolSize,l,_,r.posMatrix,i,u,m,o?e=>o.getAtTileOffset(r,e.x,e.y):e=>0);}}}(a,t,o,i,o.layout.get("text-rotation-alignment"),o.layout.get("text-pitch-alignment"),r),0!==o.paint.get("icon-opacity").constantOr(1)&&Si(t,i,o,a,!1,o.paint.get("icon-translate"),o.paint.get("icon-translate-anchor"),o.layout.get("icon-rotation-alignment"),o.layout.get("icon-pitch-alignment"),o.layout.get("icon-keep-upright"),n,s),0!==o.paint.get("text-opacity").constantOr(1)&&Si(t,i,o,a,!0,o.paint.get("text-translate"),o.paint.get("text-translate-anchor"),o.layout.get("text-rotation-alignment"),o.layout.get("text-pitch-alignment"),o.layout.get("text-keep-upright"),n,s),i.map.showCollisionBoxes&&(bi(t,i,o,a,o.paint.get("text-translate"),o.paint.get("text-translate-anchor"),!0),bi(t,i,o,a,o.paint.get("icon-translate"),o.paint.get("icon-translate-anchor"),!1));},circle:function(t,i,o,a){if("translucent"!==t.renderPass)return;const r=o.paint.get("circle-opacity"),n=o.paint.get("circle-stroke-width"),s=o.paint.get("circle-stroke-opacity"),l=void 0!==o.layout.get("circle-sort-key").constantOr(1);if(0===r.constantOr(1)&&(0===n.constantOr(1)||0===s.constantOr(1)))return;const c=t.context,h=c.gl,u=t.depthModeForSublayer(0,e.DepthMode.ReadOnly),d=e.StencilMode.disabled,_=t.colorModeForRenderPass(),m=[];for(let r=0;re.sortKey-t.sortKey);for(const i of m){const{programConfiguration:a,program:r,layoutVertexBuffer:n,indexBuffer:s,uniformValues:l,tile:m}=i.state,p=i.segments;t.terrain&&t.terrain.setupElevationDraw(m,r,{useDepthForOcclusion:!0}),r.draw(c,h.TRIANGLES,u,d,_,e.CullFaceMode.disabled,l,o.id,n,s,p,o.paint,t.transform.zoom,a);}},heatmap:function(t,i,o,a){if(0!==o.paint.get("heatmap-opacity"))if("offscreen"===t.renderPass){const r=t.context,n=r.gl,s=e.StencilMode.disabled,l=new e.ColorMode([n.ONE,n.ONE],e.Color.transparent,[!0,!0,!0,!0]);!function(e,t,i){const o=e.gl;e.activeTexture.set(o.TEXTURE1),e.viewport.set([0,0,t.width/4,t.height/4]);let a=i.heatmapFbo;if(a)o.bindTexture(o.TEXTURE_2D,a.colorAttachment.get()),e.bindFramebuffer.set(a.framebuffer);else {const r=o.createTexture();o.bindTexture(o.TEXTURE_2D,r),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_S,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_T,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MIN_FILTER,o.LINEAR),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MAG_FILTER,o.LINEAR),a=i.heatmapFbo=e.createFramebuffer(t.width/4,t.height/4,!1),function(e,t,i,o){const a=e.gl;a.texImage2D(a.TEXTURE_2D,0,a.RGBA,t.width/4,t.height/4,0,a.RGBA,e.extRenderToTextureHalfFloat?e.extTextureHalfFloat.HALF_FLOAT_OES:a.UNSIGNED_BYTE,null),o.colorAttachment.set(i);}(e,t,r,a);}}(r,t,o),r.clear({color:e.Color.transparent});for(let c=0;c{const r=e.create();e.ortho(r,0,t.width,t.height,0,0,1);const n=t.context.gl;return {u_matrix:r,u_world:[n.drawingBufferWidth,n.drawingBufferHeight],u_image:0,u_color_ramp:1,u_opacity:i.paint.get("heatmap-opacity")}})(t,i),i.id,t.viewportBuffer,t.quadTriangleIndexBuffer,t.viewportSegments,i.paint,t.transform.zoom);}(t,o));},line:function(t,i,o,a){if("translucent"!==t.renderPass)return;const r=o.paint.get("line-opacity"),n=o.paint.get("line-width");if(0===r.constantOr(1)||0===n.constantOr(1))return;const s=t.depthModeForSublayer(0,e.DepthMode.ReadOnly),l=t.colorModeForRenderPass(),c=o.paint.get("line-dasharray"),h=o.paint.get("line-pattern"),u=h.constantOr(1),d=o.paint.get("line-gradient"),_=o.getCrossfadeParameters(),m=u?"linePattern":c?"lineSDF":d?"lineGradient":"line",p=t.context,f=p.gl;let g=!0;for(const r of a){const a=i.getTile(r);if(u&&!a.patternsLoaded())continue;const n=a.getBucket(o);if(!n)continue;t.prepareDrawTile(r);const v=n.programConfigurations.get(o.id),x=t.context.program.get(),y=t.useProgram(m,v),b=g||y.program!==x,w=h.constantOr(null);if(w&&a.imageAtlas){const e=a.imageAtlas,t=e.patternPositions[w.to.toString()],i=e.patternPositions[w.from.toString()];t&&i&&v.setConstantPatternPositions(t,i);}const T=t.terrain?r.posMatrix:null,E=u?li(t,a,o,_,T):c?ci(t,a,o,c,_,T):d?si(t,a,o,T,n.lineClipsArray.length):ni(t,a,o,T);if(u)p.activeTexture.set(f.TEXTURE0),a.imageAtlasTexture.bind(f.LINEAR,f.CLAMP_TO_EDGE),v.updatePaintBuffers(_);else if(c&&(b||t.lineAtlas.dirty))p.activeTexture.set(f.TEXTURE0),t.lineAtlas.bind(p);else if(d){const a=n.gradients[o.id];let s=a.texture;if(o.gradientVersion!==a.version){let l=256;if(o.stepInterpolant){const o=i.getSource().maxzoom,a=r.canonical.z===o?Math.ceil(1<({u_matrix:e,u_sun_direction:t,u_cubemap:0,u_opacity:o,u_temporal_offset:a}))(l.skyboxMatrix,i.getCenter(t,!1),0,a,r);c.draw(n,s.TRIANGLES,o,e.StencilMode.disabled,t.colorModeForRenderPass(),e.CullFaceMode.backCW,h,"skybox",i.skyboxGeometry.vertexBuffer,i.skyboxGeometry.indexBuffer,i.skyboxGeometry.segment);}(t,o,s,a,l):"gradient"===n&&"sky"===t.renderPass&&function(t,i,o,a,r){const n=t.context,s=n.gl,l=t.transform,c=t.useProgram("skyboxGradient");i.skyboxGeometry||(i.skyboxGeometry=new qi(n)),n.activeTexture.set(s.TEXTURE0);let h=i.colorRampTexture;h||(h=i.colorRampTexture=new e.Texture(n,i.colorRamp,s.RGBA)),h.bind(s.LINEAR,s.CLAMP_TO_EDGE);const u=((t,i,o,a,r)=>({u_matrix:t,u_color_ramp:0,u_center_direction:i,u_radius:e.degToRad(o),u_opacity:a,u_temporal_offset:r}))(l.skyboxMatrix,i.getCenter(t,!1),i.paint.get("sky-gradient-radius"),a,r);c.draw(n,s.TRIANGLES,o,e.StencilMode.disabled,t.colorModeForRenderPass(),e.CullFaceMode.backCW,u,"skyboxGradient",i.skyboxGeometry.vertexBuffer,i.skyboxGeometry.indexBuffer,i.skyboxGeometry.segment);}(t,o,s,a,l);},debug:function(e,t,i){for(let o=0;o256&&this.clearStencil(),a.setColorMode(e.ColorMode.disabled),a.setDepthMode(e.DepthMode.disabled);const n=this.useProgram("clippingMask");this._tileClippingMaskIDs={};for(const t of o){const i=this._tileClippingMaskIDs[t.key]=this.nextStencilID++;n.draw(a,r.TRIANGLES,e.DepthMode.disabled,new e.StencilMode({func:r.ALWAYS,mask:0},i,255,r.KEEP,r.KEEP,r.REPLACE),e.ColorMode.disabled,e.CullFaceMode.disabled,Nt(t.posMatrix),"$clipping",this.tileExtentBuffer,this.quadTriangleIndexBuffer,this.tileExtentSegments);}}stencilModeFor3D(){this.currentStencilSource=void 0,this.nextStencilID+1>256&&this.clearStencil();const t=this.nextStencilID++,i=this.context.gl;return new e.StencilMode({func:i.NOTEQUAL,mask:255},t,255,i.KEEP,i.KEEP,i.REPLACE)}stencilModeForClipping(t){if(this.terrain)return this.terrain.stencilModeForRTTOverlap(t);const i=this.context.gl;return new e.StencilMode({func:i.EQUAL,mask:255},this._tileClippingMaskIDs[t.key],0,i.KEEP,i.KEEP,i.REPLACE)}stencilConfigForOverlap(t){const i=this.context.gl,o=t.sort((e,t)=>t.overscaledZ-e.overscaledZ),a=o[o.length-1].overscaledZ,r=o[0].overscaledZ-a+1;if(r>1){this.currentStencilSource=void 0,this.nextStencilID+r>256&&this.clearStencil();const t={};for(let o=0;o=0;this.currentLayer--){const e=this.style._layers[o[this.currentLayer]],i=t._getLayerSourceCache(e);if(this.terrain&&this.terrain.renderLayer(e,i)||e.isSky())continue;const a=i?n[i.id]:void 0;this._renderTileClippingMasks(e,i,a),this.renderLayer(this,i,e,a);}if(this.renderPass="sky",this.transform.isHorizonVisible())for(this.currentLayer=0;this.currentLayer{const o=t._getLayerSourceCache(e);o&&!e.isHidden(this.transform.zoom)&&(!i||i.getSource().maxzoom0?t.pop():null}isPatternMissing(e){if(!e)return !1;if(!e.from||!e.to)return !0;const t=this.imageManager.getPattern(e.from.toString()),i=this.imageManager.getPattern(e.to.toString());return !t||!i}currentGlobalDefines(){const e=this.terrain&&this.terrain.renderingToTexture,t=[];return this.terrain&&!this.terrain.renderingToTexture&&t.push("TERRAIN"),e&&t.push("RENDER_TO_TEXTURE"),this._showOverdrawInspector&&t.push("OVERDRAW_INSPECTOR"),t}useProgram(e,t,i){this.cache=this.cache||{};const o=i||[],a=this.currentGlobalDefines().concat(o),r=Wt.cacheKey(e,a,t);return this.cache[r]||(this.cache[r]=new Wt(this.context,e,Pt[e],t,xi[e],a)),this.cache[r]}setCustomLayerDefaults(){this.context.unbindVAO(),this.context.cullFace.setDefault(),this.context.activeTexture.setDefault(),this.context.pixelStoreUnpack.setDefault(),this.context.pixelStoreUnpackPremultiplyAlpha.setDefault(),this.context.pixelStoreUnpackFlipY.setDefault();}setBaseState(){const e=this.context.gl;this.context.cullFace.set(!1),this.context.viewport.set([0,0,this.width,this.height]),this.context.blendEquation.set(e.FUNC_ADD);}initDebugOverlayCanvas(){null==this.debugOverlayCanvas&&(this.debugOverlayCanvas=e.window.document.createElement("canvas"),this.debugOverlayCanvas.width=512,this.debugOverlayCanvas.height=512,this.debugOverlayTexture=new e.Texture(this.context,this.debugOverlayCanvas,this.context.gl.RGBA));}destroy(){this._terrain&&this._terrain.destroy(),this.emptyTexture.destroy(),this.debugOverlayTexture&&this.debugOverlayTexture.destroy();}prepareDrawTile(e){this.terrain&&this.terrain.prepareDrawTile(e);}setTileLoadedFlag(e){this.tileLoaded=e;}saveCanvasCopy(){this.frameCopies.push(this.canvasCopy()),this.tileLoaded=!1;}canvasCopy(){const e=this.context.gl,t=e.createTexture();return e.bindTexture(e.TEXTURE_2D,t),e.copyTexImage2D(e.TEXTURE_2D,0,e.RGBA,0,0,e.drawingBufferWidth,e.drawingBufferHeight,0),t}getCanvasCopiesAndTimestamps(){return {canvasCopies:this.frameCopies,timeStamps:this.loadTimeStamps}}}class Wi{constructor(e=0,t=0,i=0,o=0){if(isNaN(e)||e<0||isNaN(t)||t<0||isNaN(i)||i<0||isNaN(o)||o<0)throw new Error("Invalid value for edge-insets, top, bottom, left and right must all be numbers");this.top=e,this.bottom=t,this.left=i,this.right=o;}interpolate(t,i,o){return null!=i.top&&null!=t.top&&(this.top=e.number(t.top,i.top,o)),null!=i.bottom&&null!=t.bottom&&(this.bottom=e.number(t.bottom,i.bottom,o)),null!=i.left&&null!=t.left&&(this.left=e.number(t.left,i.left,o)),null!=i.right&&null!=t.right&&(this.right=e.number(t.right,i.right,o)),this}getCenter(t,i){const o=e.clamp((this.left+t-this.right)/2,0,t),a=e.clamp((this.top+i-this.bottom)/2,0,i);return new e.Point(o,a)}equals(e){return this.top===e.top&&this.bottom===e.bottom&&this.left===e.left&&this.right===e.right}clone(){return new Wi(this.top,this.bottom,this.left,this.right)}toJSON(){return {top:this.top,bottom:this.bottom,left:this.left,right:this.right}}}function Xi(e,t){return [e[4*t],e[4*t+1],e[4*t+2],e[4*t+3]]}function Hi(e,t,i){e[4*t+0]=i[0],e[4*t+1]=i[1],e[4*t+2]=i[2],e[4*t+3]=i[3];}function Ki(t,i){const o=Xi(t,3);e.fromQuat(t,i),Hi(t,3,o);}function Yi(e,t){Hi(e,3,[t[0],t[1],t[2],1]);}function Ji(t,i){const o=e.identity$1([]);return e.rotateZ$1(o,o,-i),e.rotateX$1(o,o,-t),o}function Qi(t,i){const o=[t[0],t[1],0],a=[i[0],i[1],0];if(e.length(o)>=1e-15){const t=e.normalize([],o);e.scale$2(a,t,e.dot(a,t)),i[0]=a[0],i[1]=a[1];}const r=e.cross([],i,t);if(e.len(r)<1e-15)return null;const n=Math.atan2(-r[1],r[0]);return Ji(Math.atan2(Math.sqrt(t[0]*t[0]+t[1]*t[1]),-t[2]),n)}class eo{constructor(e,t){this.position=e,this.orientation=t;}get position(){return this._position}set position(t){this._position=this._renderWorldCopies?function(t){if(!t)return;const i=Array.isArray(t)?new e.MercatorCoordinate(t[0],t[1],t[2]):t;return i.x=e.wrap(i.x,0,1),i}(t):t;}lookAtPoint(t,i){if(this.orientation=null,!this.position)return;const o=this._elevation?this._elevation.getAtPoint(e.MercatorCoordinate.fromLngLat(t)):0,a=this.position,r=e.MercatorCoordinate.fromLngLat(t,o),n=[r.x-a.x,r.y-a.y,r.z-a.z];i||(i=[0,0,1]),i[2]=Math.abs(i[2]),this.orientation=Qi(n,i);}setPitchBearing(t,i){this.orientation=Ji(e.degToRad(t),e.degToRad(-i));}}class to{constructor(t,i){this._transform=e.identity([]),this._orientation=e.identity$1([]),i&&(this._orientation=i,Ki(this._transform,this._orientation)),t&&Yi(this._transform,t);}get mercatorPosition(){const t=this.position;return new e.MercatorCoordinate(t[0],t[1],t[2])}get position(){const e=Xi(this._transform,3);return [e[0],e[1],e[2]]}set position(e){Yi(this._transform,e);}get orientation(){return this._orientation}set orientation(e){this._orientation=e,Ki(this._transform,this._orientation);}getPitchBearing(){const e=this.forward(),t=this.right();return {bearing:Math.atan2(-t[1],t[0]),pitch:Math.atan2(Math.sqrt(e[0]*e[0]+e[1]*e[1]),-e[2])}}setPitchBearing(e,t){this._orientation=Ji(e,t),Ki(this._transform,this._orientation);}forward(){const e=Xi(this._transform,2);return [-e[0],-e[1],-e[2]]}up(){const e=Xi(this._transform,1);return [-e[0],-e[1],-e[2]]}right(){const e=Xi(this._transform,0);return [e[0],e[1],e[2]]}getCameraToWorld(t,i){const o=new Float64Array(16);return e.invert(o,this.getWorldToCamera(t,i)),o}getWorldToCamera(t,i){const o=new Float64Array(16),a=new Float64Array(4),r=this.position;return e.conjugate(a,this._orientation),e.scale$2(r,r,-t),e.fromQuat(o,a),e.translate(o,o,r),o[1]*=-1,o[5]*=-1,o[9]*=-1,o[13]*=-1,o[8]*=i,o[9]*=i,o[10]*=i,o[11]*=i,o}getCameraToClipPerspective(t,i,o,a){const r=new Float64Array(16);return e.perspective(r,t,i,o,a),r}clone(){return new to([...this.position],[...this.orientation])}}class io{constructor(t,i,o,a,r){this.tileSize=512,this.maxValidLatitude=85.051129,this._renderWorldCopies=void 0===r||r,this._minZoom=t||0,this._maxZoom=i||22,this._minPitch=null==o?0:o,this._maxPitch=null==a?60:a,this.setMaxBounds(),this.width=0,this.height=0,this._center=new e.LngLat(0,0),this.zoom=0,this.angle=0,this._fov=.6435011087932844,this._pitch=0,this._unmodified=!0,this._edgeInsets=new Wi,this._posMatrixCache={},this._alignedPosMatrixCache={},this._camera=new to,this._centerAltitude=0,this.cameraElevationReference="ground";}clone(){const e=new io(this._minZoom,this._maxZoom,this._minPitch,this.maxPitch,this._renderWorldCopies);return e._elevation=this._elevation,e._centerAltitude=this._centerAltitude,e.tileSize=this.tileSize,e.latRange=this.latRange,e.width=this.width,e.height=this.height,e.cameraElevationReference=this.cameraElevationReference,e._center=this._center,e._setZoom(this.zoom),e._cameraZoom=this._cameraZoom,e.angle=this.angle,e._fov=this._fov,e._pitch=this._pitch,e._unmodified=this._unmodified,e._edgeInsets=this._edgeInsets.clone(),e._camera=this._camera.clone(),e._calcMatrices(),e.freezeTileCoverage=this.freezeTileCoverage,e}get elevation(){return this._elevation}set elevation(e){this._elevation!==e&&(this._elevation=e,e?this._updateCenterElevation()&&this._updateCameraOnTerrain():(this._cameraZoom=null,this._centerAltitude=0),this._calcMatrices());}updateElevation(e){this._terrainEnabled()&&null==this._cameraZoom&&this._updateCenterElevation()&&this._updateCameraOnTerrain(),e&&this._constrainCameraAltitude(),this._calcMatrices();}get minZoom(){return this._minZoom}set minZoom(e){this._minZoom!==e&&(this._minZoom=e,this.zoom=Math.max(this.zoom,e));}get maxZoom(){return this._maxZoom}set maxZoom(e){this._maxZoom!==e&&(this._maxZoom=e,this.zoom=Math.min(this.zoom,e));}get minPitch(){return this._minPitch}set minPitch(e){this._minPitch!==e&&(this._minPitch=e,this.pitch=Math.max(this.pitch,e));}get maxPitch(){return this._maxPitch}set maxPitch(e){this._maxPitch!==e&&(this._maxPitch=e,this.pitch=Math.min(this.pitch,e));}get renderWorldCopies(){return this._renderWorldCopies}set renderWorldCopies(e){void 0===e?e=!0:null===e&&(e=!1),this._renderWorldCopies=e;}get worldSize(){return this.tileSize*this.scale}get centerOffset(){return this.centerPoint._sub(this.size._div(2))}get size(){return new e.Point(this.width,this.height)}get bearing(){return -this.angle/Math.PI*180}set bearing(t){const i=-e.wrap(t,-180,180)*Math.PI/180;this.angle!==i&&(this._unmodified=!1,this.angle=i,this._calcMatrices(),this.rotationMatrix=e.create$2(),e.rotate(this.rotationMatrix,this.rotationMatrix,this.angle));}get pitch(){return this._pitch/Math.PI*180}set pitch(t){const i=e.clamp(t,this.minPitch,this.maxPitch)/180*Math.PI;this._pitch!==i&&(this._unmodified=!1,this._pitch=i,this._calcMatrices());}get fov(){return this._fov/Math.PI*180}set fov(e){e=Math.max(.01,Math.min(60,e)),this._fov!==e&&(this._unmodified=!1,this._fov=e/180*Math.PI,this._calcMatrices());}get zoom(){return this._zoom}set zoom(e){const t=Math.min(Math.max(e,this.minZoom),this.maxZoom);this._zoom!==t&&(this._unmodified=!1,this._setZoom(t),this._terrainEnabled()&&this._updateCameraOnTerrain(),this._constrain(),this._calcMatrices());}_setZoom(e){this._zoom=e,this.scale=this.zoomScale(e),this.tileZoom=Math.floor(e),this.zoomFraction=e-this.tileZoom;}_updateCenterElevation(){if(!this._elevation)return !1;const t=this._elevation.getAtPoint(e.MercatorCoordinate.fromLngLat(this.center),-1);return -1===t?(this._cameraZoom=null,!1):(this._centerAltitude=t,!0)}_updateCameraOnTerrain(){const t=this.cameraToCenterDistance/this.worldSize,i=e.mercatorZfromAltitude(this._centerAltitude,this.center.lat);this._cameraZoom=this._zoomFromMercatorZ(i+t);}get center(){return this._center}set center(e){e.lat===this._center.lat&&e.lng===this._center.lng||(this._unmodified=!1,this._center=e,this._terrainEnabled()&&("ground"===this.cameraElevationReference?this._updateCenterElevation()?this._updateCameraOnTerrain():this._cameraZoom=null:this._updateZoomFromElevation()),this._constrain(),this._calcMatrices());}_updateZoomFromElevation(){if(null==this._cameraZoom||!this._elevation)return;const t=this._cameraZoom,i=this._elevation.getAtPoint(e.MercatorCoordinate.fromLngLat(this.center)),o=e.mercatorZfromAltitude(i,this.center.lat),a=this._mercatorZfromZoom(t),r=this._mercatorZfromZoom(this._maxZoom),n=Math.max(a-o,r);this._setZoom(this._zoomFromMercatorZ(n));}get padding(){return this._edgeInsets.toJSON()}set padding(e){this._edgeInsets.equals(e)||(this._unmodified=!1,this._edgeInsets.interpolate(this._edgeInsets,e,1),this._calcMatrices());}computeZoomRelativeTo(t){const i=this.rayIntersectionCoordinate(this.pointRayIntersection(this.centerPoint,t.toAltitude()));let o;o=t.zt.maxzoom&&(i=t.maxzoom);const r=e.MercatorCoordinate.fromLngLat(this.center),n=1<({aabb:new e.Aabb([t*n,0,-p],[(t+1)*n,n,p]),zoom:0,x:0,y:0,wrap:t,fullyVisible:!1}),g=[],v=[],x=i,y=t.reparseOverscaled?o:i,b=(e,t)=>{if(!this._elevation)return;const i=this._elevation.getMinMaxForTile(t);i&&(e.min[2]=i.min,e.max[2]=i.max,e.center[2]=(e.min[2]+e.max[2])/2);},w=e=>e*e,T=w((u-this._centerAltitude)*h),E=(e,t)=>{if(t*w(.707)0;){const o=g.pop(),r=o.x,n=o.y;let c=o.fullyVisible;if(!c){const e=o.aabb.intersects(l);if(0===e)continue;c=2===e;}let u=!0;if(m<=o.zoom&&o.zoom>1),l=o.aabb.quadrant(t);let h=null;a&&o.zoom>x-6&&(h=new e.OverscaledTileID(o.zoom+1===x?y:o.zoom+1,o.wrap,o.zoom+1,i,s),b(l,h)),g.push({aabb:l,zoom:o.zoom+1,x:i,y:s,wrap:o.wrap,fullyVisible:c,tileID:h});}else {const a=o.zoom===x?y:o.zoom;if(t.minzoom&&t.minzoom>a)continue;const l=s[0]-(.5+r+(o.wrap<e.distanceSq-t.distanceSq).map(e=>e.tileID)}resize(e,t){this.width=e,this.height=t,this.pixelsToGLUnits=[2/e,-2/t],this._constrain(),this._calcMatrices();}get unmodified(){return this._unmodified}zoomScale(e){return Math.pow(2,e)}scaleZoom(e){return Math.log(e)/Math.LN2}project(t){const i=e.clamp(t.lat,-this.maxValidLatitude,this.maxValidLatitude);return new e.Point(e.mercatorXfromLng(t.lng)*this.worldSize,e.mercatorYfromLat(i)*this.worldSize)}unproject(t){return new e.MercatorCoordinate(t.x/this.worldSize,t.y/this.worldSize).toLngLat()}get point(){return this.project(this.center)}setLocationAtPoint(t,i){const o=this.pointCoordinate(i),a=this.pointCoordinate(this.centerPoint),r=this.locationCoordinate(t),n=new e.MercatorCoordinate(r.x-(o.x-a.x),r.y-(o.y-a.y));this.center=this.coordinateLocation(n),this._renderWorldCopies&&(this.center=this.center.wrap());}setLocation(e){this.center=this.coordinateLocation(e),this._renderWorldCopies&&(this.center=this.center.wrap());}locationPoint(e){return this._coordinatePoint(this.locationCoordinate(e),!1)}locationPoint3D(e){return this._coordinatePoint(this.locationCoordinate(e),!0)}pointLocation(e){return this.coordinateLocation(this.pointCoordinate(e))}pointLocation3D(e){return this.coordinateLocation(this.pointCoordinate3D(e))}locationCoordinate(t){return e.MercatorCoordinate.fromLngLat(t)}coordinateLocation(e){return e.toLngLat()}pointRayIntersection(t,i){const o=null!=i?i:this._centerAltitude,a=[t.x,t.y,0,1],r=[t.x,t.y,1,1];e.transformMat4(a,a,this.pixelMatrixInverse),e.transformMat4(r,r,this.pixelMatrixInverse);const n=r[3];e.scale$1(a,a,1/a[3]),e.scale$1(r,r,1/n);const s=a[2],l=r[2];return {p0:a,p1:r,t:s===l?0:(o-s)/(l-s)}}screenPointToMercatorRay(t){const i=[t.x,t.y,0,1],o=[t.x,t.y,1,1];return e.transformMat4(i,i,this.pixelMatrixInverse),e.transformMat4(o,o,this.pixelMatrixInverse),e.scale$1(i,i,1/i[3]),e.scale$1(o,o,1/o[3]),i[2]=e.mercatorZfromAltitude(i[2],this._center.lat)*this.worldSize,o[2]=e.mercatorZfromAltitude(o[2],this._center.lat)*this.worldSize,e.scale$1(i,i,1/this.worldSize),e.scale$1(o,o,1/this.worldSize),new e.Ray([i[0],i[1],i[2]],e.normalize([],e.sub([],o,i)))}rayIntersectionCoordinate(t){const{p0:i,p1:o,t:a}=t,r=e.mercatorZfromAltitude(i[2],this._center.lat),n=e.mercatorZfromAltitude(o[2],this._center.lat);return new e.MercatorCoordinate(e.number(i[0],o[0],a)/this.worldSize,e.number(i[1],o[1],a)/this.worldSize,e.number(r,n,a))}pointCoordinate(t){const i=this.horizonLineFromTop(),o=i>t.y?new e.Point(t.x,i):t;return this.rayIntersectionCoordinate(this.pointRayIntersection(o))}pointCoordinate3D(t){if(!this.elevation)return this.pointCoordinate(t);const i=this.elevation;let o=this.elevation.pointCoordinate(t);if(o)return new e.MercatorCoordinate(o[0],o[1],o[2]);let a=0,r=this.horizonLineFromTop();if(t.y>r)return this.pointCoordinate(t);const n=.02*r,s=t.clone();for(let t=0;t<10&&r-a>n;t++){s.y=e.number(a,r,.66);const t=i.pointCoordinate(s);t?(r=s.y,o=t):a=s.y;}return o?new e.MercatorCoordinate(o[0],o[1],o[2]):this.pointCoordinate(t)}isPointAboveHorizon(e){if(this.elevation)return !this.elevation.pointCoordinate(e);{const t=this.horizonLineFromTop();return e.y0?new e.Point(a[0]/a[3],a[1]/a[3]):new e.Point(Number.MAX_VALUE,Number.MAX_VALUE)}getBounds(){return this._terrainEnabled()?this._getBounds3D():(new e.LngLatBounds).extend(this.pointLocation(new e.Point(0,0))).extend(this.pointLocation(new e.Point(this.width,0))).extend(this.pointLocation(new e.Point(this.width,this.height))).extend(this.pointLocation(new e.Point(0,this.height)))}_getBounds3D(){const t=this.elevation,i=t.visibleDemTiles.reduce((e,t)=>{if(t.dem){const i=t.dem.tree;e.min=Math.min(e.min,i.minimums[0]),e.max=Math.max(e.max,i.maximums[0]);}return e},{min:Number.MAX_VALUE,max:0});i.min*=t.exaggeration(),i.max*=t.exaggeration();const o=this.horizonLineFromTop();return [new e.Point(0,o),new e.Point(this.width,o),new e.Point(this.width,this.height),new e.Point(0,this.height)].reduce((e,t)=>e.extend(this.coordinateLocation(this.rayIntersectionCoordinate(this.pointRayIntersection(t,i.min)))).extend(this.coordinateLocation(this.rayIntersectionCoordinate(this.pointRayIntersection(t,i.max)))),new e.LngLatBounds)}horizonLineFromTop(){const e=this.height/2/Math.tan(this._fov/2)/Math.tan(Math.max(this._pitch,.1))+this.centerOffset.y;return Math.max(0,this.height/2-.97*e)}getMaxBounds(){return this.latRange&&2===this.latRange.length&&this.lngRange&&2===this.lngRange.length?new e.LngLatBounds([this.lngRange[0],this.latRange[0]],[this.lngRange[1],this.latRange[1]]):null}setMaxBounds(e){e?(this.lngRange=[e.getWest(),e.getEast()],this.latRange=[e.getSouth(),e.getNorth()],this._constrain()):(this.lngRange=null,this.latRange=[-this.maxValidLatitude,this.maxValidLatitude]);}calculatePosMatrix(t,i=!1){const o=t.key,a=i?this._alignedPosMatrixCache:this._posMatrixCache;if(a[o])return a[o];const r=t.canonical,n=this.worldSize/this.zoomScale(r.z),s=r.x+Math.pow(2,r.z)*t.wrap,l=e.identity(new Float64Array(16));return e.translate(l,l,[s*n,r.y*n,0]),e.scale(l,l,[n/e.EXTENT,n/e.EXTENT,1]),e.multiply(l,i?this.alignedProjMatrix:this.projMatrix,l),a[o]=new Float32Array(l),a[o]}customLayerMatrix(){return this.mercatorMatrix.slice()}recenterOnTerrain(){if(!this._elevation)return;const t=this._elevation;this._updateCameraState();const i=this._camera.position,o=this._camera.forward();if(i.z<=0||o[2]>=0)return;const a=e.mercatorZfromAltitude(1,this._center.lat);i[2]/=a,o[2]/=a,e.normalize(o,o);const r=t.raycast(i,o,t.exaggeration());if(r){const t=e.scaleAndAdd([],i,o,r),a=new e.MercatorCoordinate(t[0],t[1],e.mercatorZfromAltitude(t[2],e.latFromMercatorY(t[1]))),n=this._camera.position,s=a.z+e.length([a.x-n[0],a.y-n[1],a.z-n[2]]);this._cameraZoom=this._zoomFromMercatorZ(s),this._centerAltitude=a.toAltitude(),this._center=a.toLngLat(),this._updateZoomFromElevation(),this._constrain(),this._calcMatrices();}}_constrainCameraAltitude(){if(!this._elevation)return;const t=this._elevation;this._updateCameraState();const i=t.getAtPoint(this._camera.mercatorPosition),o=this._minimumHeightOverTerrain()*Math.cos(e.degToRad(this._maxPitch)),a=e.mercatorZfromAltitude(i,this._center.lat),r=this._camera.position[2]-a;if(rn&&(a=n-t);}if(this.lngRange){const e=u.x,t=c.x/2;e-tl&&(o=l-t);}void 0===o&&void 0===a||(this.center=this.unproject(new e.Point(void 0!==o?o:u.x,void 0!==a?a:u.y))),this._constrainCameraAltitude(),this._unmodified=h,this._constraining=!1;}_minZoomForBounds(){const t=(e,t)=>Math.log2(e/(this.tileSize*Math.abs(t[1]-t[0])));let i=0;if(this.latRange){const o=this.latRange;i=t(this.height,[e.mercatorYfromLat(o[0]),e.mercatorYfromLat(o[1])]);}let o=0;if(this.lngRange){const i=this.lngRange;o=t(this.width,[e.mercatorXfromLng(i[0]),e.mercatorXfromLng(i[1])]);}return Math.max(i,o)}_maxCameraBoundsDistance(){return this._mercatorZfromZoom(this._minZoomForBounds())}_calcMatrices(){if(!this.height)return;const t=this.centerOffset;this.cameraToCenterDistance=.5/Math.tan(this._fov/2)*this.height;const i=e.mercatorZfromAltitude(1,this.center.lat)*this.worldSize;this._updateCameraState();const o=Math.PI/2+this._pitch,a=this.fovAboveCenter,r=this._camera.position[2]*this.worldSize/Math.cos(this._pitch),n=Math.sin(a)*r/Math.sin(e.clamp(Math.PI-o-a,.01,Math.PI-.01)),s=this.point,l=s.x,c=s.y,h=1.01*(Math.cos(Math.PI/2-this._pitch)*n+r),u=this.height/50,d=this._camera.getWorldToCamera(this.worldSize,i),_=this._camera.getCameraToClipPerspective(this._fov,this.width/this.height,u,h);_[8]=2*-t.x/this.width,_[9]=2*t.y/this.height;let m=e.mul([],_,d);this.mercatorMatrix=e.scale([],m,[this.worldSize,this.worldSize,this.worldSize/i]),this.projMatrix=m,this.invProjMatrix=e.invert(new Float64Array(16),this.projMatrix);const p=new Float32Array(16);e.identity(p),e.scale(p,p,[1,-1,1]),e.rotateX(p,p,this._pitch),e.rotateZ(p,p,this.angle);const f=e.perspective(new Float32Array(16),this._fov,this.width/this.height,u,h);this.skyboxMatrix=e.multiply(p,f,p);const g=this.width%2/2,v=this.height%2/2,x=Math.cos(this.angle),y=Math.sin(this.angle),b=l-Math.round(l)+x*g+y*v,w=c-Math.round(c)+x*v+y*g,T=new Float64Array(m);if(e.translate(T,T,[b>.5?b-1:b,w>.5?w-1:w,0]),this.alignedProjMatrix=T,m=e.create(),e.scale(m,m,[this.width/2,-this.height/2,1]),e.translate(m,m,[1,-1,0]),this.labelPlaneMatrix=m,m=e.create(),e.scale(m,m,[1,-1,1]),e.translate(m,m,[-1,-1,0]),e.scale(m,m,[2/this.width,2/this.height,1]),this.glCoordMatrix=m,this.pixelMatrix=e.multiply(new Float64Array(16),this.labelPlaneMatrix,this.projMatrix),m=e.invert(new Float64Array(16),this.pixelMatrix),!m)throw new Error("failed to invert matrix");this.pixelMatrixInverse=m,this._posMatrixCache={},this._alignedPosMatrixCache={};}_updateCameraState(){if(!this.height)return;this._camera.setPitchBearing(this._pitch,this.angle);const t=this._camera.forward(),i=this.cameraToCenterDistance,o=this.point,a=this._mercatorZfromZoom(this._cameraZoom?this._cameraZoom:this._zoom)-e.mercatorZfromAltitude(this._centerAltitude,this.center.lat),r=this.cameraToCenterDistance/a;this._camera.position=[o.x/this.worldSize-t[0]*i/r,o.y/this.worldSize-t[1]*i/r,e.mercatorZfromAltitude(this._centerAltitude,this._center.lat)+-t[2]*i/r];}_translateCameraConstrained(t){const i=this._maxCameraBoundsDistance()*Math.cos(this._pitch),o=t[2];let a=1;o>0&&(a=Math.min((i-this._camera.position[2])/o,1)),this._camera.position=e.scaleAndAdd([],this._camera.position,t,a),this._updateStateFromCamera();}_updateStateFromCamera(){const t=this._camera.position,i=this._camera.forward(),{pitch:o,bearing:a}=this._camera.getPitchBearing(),r=e.mercatorZfromAltitude(this._centerAltitude,this.center.lat),n=this._mercatorZfromZoom(this._maxZoom)*Math.cos(e.degToRad(this._maxPitch)),s=Math.max((t[2]-r)/Math.cos(o),n),l=this._zoomFromMercatorZ(s);e.scaleAndAdd(t,t,i,s),this._pitch=e.clamp(o,e.degToRad(this.minPitch),e.degToRad(this.maxPitch)),this.angle=e.wrap(a,-Math.PI,Math.PI),this._setZoom(e.clamp(l,this._minZoom,this._maxZoom)),this._terrainEnabled()&&this._updateCameraOnTerrain(),this._center=new e.MercatorCoordinate(t[0],t[1],t[2]).toLngLat(),this._unmodified=!1,this._constrain(),this._calcMatrices();}_worldSizeFromZoom(e){return Math.pow(2,e)*this.tileSize}_mercatorZfromZoom(e){return this.cameraToCenterDistance/this._worldSizeFromZoom(e)}_minimumHeightOverTerrain(){const e=Math.min((null!=this._cameraZoom?this._cameraZoom:this._zoom)+2,this._maxZoom);return this._mercatorZfromZoom(e)}_zoomFromMercatorZ(e){return this.scaleZoom(this.cameraToCenterDistance/(e*this.tileSize))}_terrainEnabled(){return !!this._elevation}isHorizonVisibleForPoints(t,i){const o=Math.min(t.x,i.x),a=Math.max(t.x,i.x),r=Math.min(t.y,i.y),n=Math.max(t.y,i.y),s=[new e.Point(o,r),new e.Point(a,n),new e.Point(o,n),new e.Point(a,r)],l=this._renderWorldCopies?-3:0,c=this._renderWorldCopies?4:1;for(const e of s){const t=this.pointRayIntersection(e);if(t.t<0)return !0;const i=this.rayIntersectionCoordinate(t);if(i.xc||i.y>1)return !0}return !1}isHorizonVisible(){return this.pitch+e.radToDeg(this.fovAboveCenter)>88||this.isHorizonVisibleForPoints(new e.Point(0,0),new e.Point(this.width,this.height))}zoomDeltaToMovement(t,i){const o=e.length(e.sub([],this._camera.position,t)),a=this._zoomFromMercatorZ(o)+i;return o-this._mercatorZfromZoom(a)}getCameraPoint(){const t=Math.tan(this._pitch)*(this.cameraToCenterDistance||1);return this.centerPoint.add(new e.Point(0,t))}}class oo{constructor(t){this._hashName=t&&encodeURIComponent(t),e.bindAll(["_getCurrentHash","_onHashChange","_updateHash"],this),this._updateHash=function(e,t){let i=!1,o=null;const a=()=>{o=null,i&&(e(),o=setTimeout(a,300),i=!1);};return ()=>(i=!0,o||a(),o)}(this._updateHashUnthrottled.bind(this));}addTo(t){return this._map=t,e.window.addEventListener("hashchange",this._onHashChange,!1),this._map.on("moveend",this._updateHash),this}remove(){return e.window.removeEventListener("hashchange",this._onHashChange,!1),this._map.off("moveend",this._updateHash),clearTimeout(this._updateHash()),delete this._map,this}getHashString(t){const i=this._map.getCenter(),o=Math.round(100*this._map.getZoom())/100,a=Math.ceil((o*Math.LN2+Math.log(512/360/.5))/Math.LN10),r=Math.pow(10,a),n=Math.round(i.lng*r)/r,s=Math.round(i.lat*r)/r,l=this._map.getBearing(),c=this._map.getPitch();let h="";if(h+=t?`/${n}/${s}/${o}`:`${o}/${s}/${n}`,(l||c)&&(h+=`/${Math.round(10*l)/10}`),c&&(h+=`/${Math.round(c)}`),this._hashName){const t=this._hashName;let i=!1;const o=e.window.location.hash.slice(1).split("&").map(e=>{const o=e.split("=")[0];return o===t?(i=!0,`${o}=${h}`):e}).filter(e=>e);return i||o.push(`${t}=${h}`),`#${o.join("&")}`}return `#${h}`}_getCurrentHash(){const t=e.window.location.hash.replace("#","");if(this._hashName){let e;return t.split("&").map(e=>e.split("=")).forEach(t=>{t[0]===this._hashName&&(e=t);}),(e&&e[1]||"").split("/")}return t.split("/")}_onHashChange(){const e=this._getCurrentHash();if(e.length>=3&&!e.some(e=>isNaN(e))){const t=this._map.dragRotate.isEnabled()&&this._map.touchZoomRotate.isEnabled()?+(e[3]||0):this._map.getBearing();return this._map.jumpTo({center:[+e[2],+e[1]],zoom:+e[0],bearing:t,pitch:+(e[4]||0)}),!0}return !1}_updateHashUnthrottled(){const t=e.window.location.href.replace(/(#.+)?$/,this.getHashString());try{e.window.history.replaceState(e.window.history.state,null,t);}catch(e){}}}const ao={linearity:.3,easing:e.bezier(0,0,.3,1)},ro=e.extend({deceleration:2500,maxSpeed:1400},ao),no=e.extend({deceleration:20,maxSpeed:1400},ao),so=e.extend({deceleration:1e3,maxSpeed:360},ao),lo=e.extend({deceleration:1e3,maxSpeed:90},ao);class co{constructor(e){this._map=e,this.clear();}clear(){this._inertiaBuffer=[];}record(t){this._drainInertiaBuffer(),this._inertiaBuffer.push({time:e.browser.now(),settings:t});}_drainInertiaBuffer(){const t=this._inertiaBuffer,i=e.browser.now();for(;t.length>0&&i-t[0].time>160;)t.shift();}_onMoveEnd(t){if(this._drainInertiaBuffer(),this._inertiaBuffer.length<2)return;const i={zoom:0,bearing:0,pitch:0,pan:new e.Point(0,0),pinchAround:void 0,around:void 0};for(const{settings:e}of this._inertiaBuffer)i.zoom+=e.zoomDelta||0,i.bearing+=e.bearingDelta||0,i.pitch+=e.pitchDelta||0,e.panDelta&&i.pan._add(e.panDelta),e.around&&(i.around=e.around),e.pinchAround&&(i.pinchAround=e.pinchAround);const o=this._inertiaBuffer[this._inertiaBuffer.length-1].time-this._inertiaBuffer[0].time,a={};if(i.pan.mag()){const r=uo(i.pan.mag(),o,e.extend({},ro,t||{}));a.offset=i.pan.mult(r.amount/i.pan.mag()),a.center=this._map.transform.center,ho(a,r);}if(i.zoom){const e=uo(i.zoom,o,no);a.zoom=this._map.transform.zoom+e.amount,ho(a,e);}if(i.bearing){const t=uo(i.bearing,o,so);a.bearing=this._map.transform.bearing+e.clamp(t.amount,-179,179),ho(a,t);}if(i.pitch){const e=uo(i.pitch,o,lo);a.pitch=this._map.transform.pitch+e.amount,ho(a,e);}if(a.zoom||a.bearing){const e=void 0===i.pinchAround?i.around:i.pinchAround;a.around=e?this._map.unproject(e):this._map.getCenter();}return this.clear(),e.extend(a,{noMoveStart:!0})}}function ho(e,t){(!e.duration||e.durationo.unproject(e)),l=n.reduce((e,t,i,o)=>e.add(t.div(o.length)),new e.Point(0,0));super(t,{points:n,point:l,lngLats:s,lngLat:o.unproject(l),originalEvent:a}),this._defaultPrevented=!1;}}class po extends e.Event{preventDefault(){this._defaultPrevented=!0;}get defaultPrevented(){return this._defaultPrevented}constructor(e,t,i){super(e,{originalEvent:i}),this._defaultPrevented=!1;}}class fo{constructor(e,t){this._map=e,this._clickTolerance=t.clickTolerance;}reset(){delete this._mousedownPos;}wheel(e){return this._firePreventable(new po(e.type,this._map,e))}mousedown(e,t){return this._mousedownPos=t,this._firePreventable(new _o(e.type,this._map,e))}mouseup(e){this._map.fire(new _o(e.type,this._map,e));}click(e,t){this._mousedownPos&&this._mousedownPos.dist(t)>=this._clickTolerance||this._map.fire(new _o(e.type,this._map,e));}dblclick(e){return this._firePreventable(new _o(e.type,this._map,e))}mouseover(e){this._map.fire(new _o(e.type,this._map,e));}mouseout(e){this._map.fire(new _o(e.type,this._map,e));}touchstart(e){return this._firePreventable(new mo(e.type,this._map,e))}touchmove(e){this._map.fire(new mo(e.type,this._map,e));}touchend(e){this._map.fire(new mo(e.type,this._map,e));}touchcancel(e){this._map.fire(new mo(e.type,this._map,e));}_firePreventable(e){if(this._map.fire(e),e.defaultPrevented)return {}}isEnabled(){return !0}isActive(){return !1}enable(){}disable(){}}class go{constructor(e){this._map=e;}reset(){this._delayContextMenu=!1,delete this._contextMenuEvent;}mousemove(e){this._map.fire(new _o(e.type,this._map,e));}mousedown(){this._delayContextMenu=!0;}mouseup(){this._delayContextMenu=!1,this._contextMenuEvent&&(this._map.fire(new _o("contextmenu",this._map,this._contextMenuEvent)),delete this._contextMenuEvent);}contextmenu(e){this._delayContextMenu?this._contextMenuEvent=e:this._map.fire(new _o(e.type,this._map,e)),this._map.listens("contextmenu")&&e.preventDefault();}isEnabled(){return !0}isActive(){return !1}enable(){}disable(){}}class vo{constructor(e,t){this._map=e,this._el=e.getCanvasContainer(),this._container=e.getContainer(),this._clickTolerance=t.clickTolerance||1;}isEnabled(){return !!this._enabled}isActive(){return !!this._active}enable(){this.isEnabled()||(this._enabled=!0);}disable(){this.isEnabled()&&(this._enabled=!1);}mousedown(e,t){this.isEnabled()&&e.shiftKey&&0===e.button&&(i.disableDrag(),this._startPos=this._lastPos=t,this._active=!0);}mousemoveWindow(e,t){if(!this._active)return;const o=t;if(this._lastPos.equals(o)||!this._box&&o.dist(this._startPos)e.fitScreenCoordinates(a,r,this._map.getBearing(),{linear:!1})};this._fireEvent("boxzoomcancel",t);}keydown(e){this._active&&27===e.keyCode&&(this.reset(),this._fireEvent("boxzoomcancel",e));}reset(){this._active=!1,this._container.classList.remove("mapboxgl-crosshair"),this._box&&(i.remove(this._box),this._box=null),i.enableDrag(),delete this._startPos,delete this._lastPos;}_fireEvent(t,i){return this._map.fire(new e.Event(t,{originalEvent:i}))}}function xo(e,t){const i={};for(let o=0;othis.numTouches)&&(this.aborted=!0),this.aborted||(void 0===this.startTime&&(this.startTime=t.timeStamp),o.length===this.numTouches&&(this.centroid=function(t){const i=new e.Point(0,0);for(const e of t)i._add(e);return i.div(t.length)}(i),this.touches=xo(o,i)));}touchmove(e,t,i){if(this.aborted||!this.centroid)return;const o=xo(i,t);for(const e in this.touches){const t=this.touches[e],i=o[e];(!i||i.dist(t)>30)&&(this.aborted=!0);}}touchend(e,t,i){if((!this.centroid||e.timeStamp-this.startTime>500)&&(this.aborted=!0),0===i.length){const e=!this.aborted&&this.centroid;if(this.reset(),e)return e}}}class bo{constructor(e){this.singleTap=new yo(e),this.numTaps=e.numTaps,this.reset();}reset(){this.lastTime=1/0,delete this.lastTap,this.count=0,this.singleTap.reset();}touchstart(e,t,i){this.singleTap.touchstart(e,t,i);}touchmove(e,t,i){this.singleTap.touchmove(e,t,i);}touchend(e,t,i){const o=this.singleTap.touchend(e,t,i);if(o){const t=e.timeStamp-this.lastTime<500,i=!this.lastTap||this.lastTap.dist(o)<30;if(t&&i||this.reset(),this.count++,this.lastTime=e.timeStamp,this.lastTap=o,this.count===this.numTaps)return this.reset(),o}}}class wo{constructor(){this._zoomIn=new bo({numTouches:1,numTaps:2}),this._zoomOut=new bo({numTouches:2,numTaps:1}),this.reset();}reset(){this._active=!1,this._zoomIn.reset(),this._zoomOut.reset();}touchstart(e,t,i){this._zoomIn.touchstart(e,t,i),this._zoomOut.touchstart(e,t,i);}touchmove(e,t,i){this._zoomIn.touchmove(e,t,i),this._zoomOut.touchmove(e,t,i);}touchend(e,t,i){const o=this._zoomIn.touchend(e,t,i),a=this._zoomOut.touchend(e,t,i);return o?(this._active=!0,e.preventDefault(),setTimeout(()=>this.reset(),0),{cameraAnimation:t=>t.easeTo({duration:300,zoom:t.getZoom()+1,around:t.unproject(o)},{originalEvent:e})}):a?(this._active=!0,e.preventDefault(),setTimeout(()=>this.reset(),0),{cameraAnimation:t=>t.easeTo({duration:300,zoom:t.getZoom()-1,around:t.unproject(a)},{originalEvent:e})}):void 0}touchcancel(){this.reset();}enable(){this._enabled=!0;}disable(){this._enabled=!1,this.reset();}isEnabled(){return this._enabled}isActive(){return this._active}}const To={0:1,2:2};class Eo{constructor(e){this.reset(),this._clickTolerance=e.clickTolerance||1;}reset(){this._active=!1,this._moved=!1,delete this._lastPoint,delete this._eventButton;}_correctButton(e,t){return !1}_move(e,t){return {}}mousedown(e,t){if(this._lastPoint)return;const o=i.mouseButton(e);this._correctButton(e,o)&&(this._lastPoint=t,this._eventButton=o);}mousemoveWindow(e,t){const i=this._lastPoint;if(i)if(e.preventDefault(),function(e,t){const i=To[t];return void 0===e.buttons||(e.buttons&i)!==i}(e,this._eventButton))this.reset();else if(this._moved||!(t.dist(i)0&&(this._active=!0);const a=xo(o,i),r=new e.Point(0,0),n=new e.Point(0,0);let s=0;for(const e in a){const t=a[e],i=this._touches[e];i&&(r._add(t),n._add(t.sub(i)),s++,a[e]=t);}if(this._touches=a,sMath.abs(e.x)}class Bo extends Mo{reset(){super.reset(),this._valid=void 0,delete this._firstMove,delete this._lastPoints;}_start(e){this._lastPoints=e,ko(e[0].sub(e[1]))&&(this._valid=!1);}_move(e,t,i){const o=e[0].sub(this._lastPoints[0]),a=e[1].sub(this._lastPoints[1]);if(this._valid=this.gestureBeginsVertically(o,a,i.timeStamp),this._valid)return this._lastPoints=e,this._active=!0,{pitchDelta:(o.y+a.y)/2*-.5}}gestureBeginsVertically(e,t,i){if(void 0!==this._valid)return this._valid;const o=e.mag()>=2,a=t.mag()>=2;if(!o&&!a)return;if(!o||!a)return void 0===this._firstMove&&(this._firstMove=i),i-this._firstMove<100&&void 0;const r=e.y>0==t.y>0;return ko(e)&&ko(t)&&r}}const Fo={panStep:100,bearingStep:15,pitchStep:10};class Oo{constructor(){const e=Fo;this._panStep=e.panStep,this._bearingStep=e.bearingStep,this._pitchStep=e.pitchStep,this._rotationDisabled=!1;}reset(){this._active=!1;}keydown(e){if(e.altKey||e.ctrlKey||e.metaKey)return;let t=0,i=0,o=0,a=0,r=0;switch(e.keyCode){case 61:case 107:case 171:case 187:t=1;break;case 189:case 109:case 173:t=-1;break;case 37:e.shiftKey?i=-1:(e.preventDefault(),a=-1);break;case 39:e.shiftKey?i=1:(e.preventDefault(),a=1);break;case 38:e.shiftKey?o=1:(e.preventDefault(),r=-1);break;case 40:e.shiftKey?o=-1:(e.preventDefault(),r=1);break;default:return}return this._rotationDisabled&&(i=0,o=0),{cameraAnimation:n=>{const s=n.getZoom();n.easeTo({duration:300,easeId:"keyboardHandler",easing:Uo,zoom:t?Math.round(s)+t*(e.shiftKey?2:1):s,bearing:n.getBearing()+i*this._bearingStep,pitch:n.getPitch()+o*this._pitchStep,offset:[-a*this._panStep,-r*this._panStep],center:n.getCenter()},{originalEvent:e});}}}enable(){this._enabled=!0;}disable(){this._enabled=!1,this.reset();}isEnabled(){return this._enabled}isActive(){return this._active}disableRotation(){this._rotationDisabled=!0;}enableRotation(){this._rotationDisabled=!1;}}function Uo(e){return e*(2-e)}class No{constructor(t,i){this._map=t,this._el=t.getCanvasContainer(),this._handler=i,this._delta=0,this._defaultZoomRate=.01,this._wheelZoomRate=1/450,e.bindAll(["_onTimeout"],this);}setZoomRate(e){this._defaultZoomRate=e;}setWheelZoomRate(e){this._wheelZoomRate=e;}isEnabled(){return !!this._enabled}isActive(){return !!this._active||void 0!==this._finishTimeout}isZooming(){return !!this._zooming}enable(e){this.isEnabled()||(this._enabled=!0,this._aroundCenter=e&&"center"===e.around);}disable(){this.isEnabled()&&(this._enabled=!1);}wheel(t){if(!this.isEnabled())return;let i=t.deltaMode===e.window.WheelEvent.DOM_DELTA_LINE?40*t.deltaY:t.deltaY;const o=e.browser.now(),a=o-(this._lastWheelEventTime||0);this._lastWheelEventTime=o,0!==i&&i%4.000244140625==0?this._type="wheel":0!==i&&Math.abs(i)<4?this._type="trackpad":a>400?(this._type=null,this._lastValue=i,this._timeout=setTimeout(this._onTimeout,40,t)):this._type||(this._type=Math.abs(a*i)<200?"trackpad":"wheel",this._timeout&&(clearTimeout(this._timeout),this._timeout=null,i+=this._lastValue)),t.shiftKey&&i&&(i/=4),this._type&&(this._lastWheelEvent=t,this._delta-=i,this._active||this._start(t)),t.preventDefault();}_onTimeout(e){this._type="wheel",this._delta-=this._lastValue,this._active||this._start(e);}_start(e){if(!this._delta)return;this._frameId&&(this._frameId=null),this._active=!0,this.isZooming()||(this._zooming=!0),this._finishTimeout&&(clearTimeout(this._finishTimeout),delete this._finishTimeout);const t=i.mousePos(this._el,e);this._aroundPoint=this._aroundCenter?this._map.transform.centerPoint:t,this._aroundCoord=this._map.transform.pointCoordinate3D(this._aroundPoint),this._targetZoom=void 0,this._frameId||(this._frameId=!0,this._handler._triggerRenderFrame());}renderFrame(){if(!this._frameId)return;if(this._frameId=null,!this.isActive())return;const t=this._map.transform,i=()=>t._terrainEnabled()?t.computeZoomRelativeTo(this._aroundCoord):t.zoom;if(0!==this._delta){const e="wheel"===this._type&&Math.abs(this._delta)>4.000244140625?this._wheelZoomRate:this._defaultZoomRate;let o=2/(1+Math.exp(-Math.abs(this._delta*e)));this._delta<0&&0!==o&&(o=1/o);const a=i(),r=Math.pow(2,a),n="number"==typeof this._targetZoom?t.zoomScale(this._targetZoom):r;this._targetZoom=Math.min(t.maxZoom,Math.max(t.minZoom,t.scaleZoom(n*o))),"wheel"===this._type&&(this._startZoom=i(),this._easing=this._smoothOutEasing(200)),this._delta=0;}const o="number"==typeof this._targetZoom?this._targetZoom:i(),a=this._startZoom,r=this._easing;let n,s=!1;if("wheel"===this._type&&a&&r){const t=Math.min((e.browser.now()-this._lastWheelEventTime)/200,1),i=r(t);n=e.number(a,o,i),t<1?this._frameId||(this._frameId=!0):s=!0;}else n=o,s=!0;return this._active=!0,s&&(this._active=!1,this._finishTimeout=setTimeout(()=>{this._zooming=!1,this._handler._triggerRenderFrame(),delete this._targetZoom,delete this._finishTimeout;},200)),{noInertia:!0,needsRenderFrame:!s,zoomDelta:n-i(),around:this._aroundPoint,aroundCoord:this._aroundCoord,originalEvent:this._lastWheelEvent}}_smoothOutEasing(t){let i=e.ease;if(this._prevEase){const t=this._prevEase,o=(e.browser.now()-t.start)/t.duration,a=t.easing(o+.01)-t.easing(o),r=.27/Math.sqrt(a*a+1e-4)*.01,n=Math.sqrt(.0729-r*r);i=e.bezier(r,n,.25,1);}return this._prevEase={start:e.browser.now(),duration:t,easing:i},i}reset(){this._active=!1;}}class Zo{constructor(e,t){this._clickZoom=e,this._tapZoom=t;}enable(){this._clickZoom.enable(),this._tapZoom.enable();}disable(){this._clickZoom.disable(),this._tapZoom.disable();}isEnabled(){return this._clickZoom.isEnabled()&&this._tapZoom.isEnabled()}isActive(){return this._clickZoom.isActive()||this._tapZoom.isActive()}}class Go{constructor(){this.reset();}reset(){this._active=!1;}dblclick(e,t){return e.preventDefault(),{cameraAnimation:i=>{i.easeTo({duration:300,zoom:i.getZoom()+(e.shiftKey?-1:1),around:i.unproject(t)},{originalEvent:e});}}}enable(){this._enabled=!0;}disable(){this._enabled=!1,this.reset();}isEnabled(){return this._enabled}isActive(){return this._active}}class qo{constructor(){this._tap=new bo({numTouches:1,numTaps:1}),this.reset();}reset(){this._active=!1,delete this._swipePoint,delete this._swipeTouch,delete this._tapTime,this._tap.reset();}touchstart(e,t,i){this._swipePoint||(this._tapTime&&e.timeStamp-this._tapTime>500&&this.reset(),this._tapTime?i.length>0&&(this._swipePoint=t[0],this._swipeTouch=i[0].identifier):this._tap.touchstart(e,t,i));}touchmove(e,t,i){if(this._tapTime){if(this._swipePoint){if(i[0].identifier!==this._swipeTouch)return;const o=t[0],a=o.y-this._swipePoint.y;return this._swipePoint=o,e.preventDefault(),this._active=!0,{zoomDelta:a/128}}}else this._tap.touchmove(e,t,i);}touchend(e,t,i){this._tapTime?this._swipePoint&&0===i.length&&this.reset():this._tap.touchend(e,t,i)&&(this._tapTime=e.timeStamp);}touchcancel(){this.reset();}enable(){this._enabled=!0;}disable(){this._enabled=!1,this.reset();}isEnabled(){return this._enabled}isActive(){return this._active}}class Vo{constructor(e,t,i){this._el=e,this._mousePan=t,this._touchPan=i;}enable(e){this._inertiaOptions=e||{},this._mousePan.enable(),this._touchPan.enable(),this._el.classList.add("mapboxgl-touch-drag-pan");}disable(){this._mousePan.disable(),this._touchPan.disable(),this._el.classList.remove("mapboxgl-touch-drag-pan");}isEnabled(){return this._mousePan.isEnabled()&&this._touchPan.isEnabled()}isActive(){return this._mousePan.isActive()||this._touchPan.isActive()}}class $o{constructor(e,t,i){this._pitchWithRotate=e.pitchWithRotate,this._mouseRotate=t,this._mousePitch=i;}enable(){this._mouseRotate.enable(),this._pitchWithRotate&&this._mousePitch.enable();}disable(){this._mouseRotate.disable(),this._mousePitch.disable();}isEnabled(){return this._mouseRotate.isEnabled()&&(!this._pitchWithRotate||this._mousePitch.isEnabled())}isActive(){return this._mouseRotate.isActive()||this._mousePitch.isActive()}}class jo{constructor(e,t,i,o){this._el=e,this._touchZoom=t,this._touchRotate=i,this._tapDragZoom=o,this._rotationDisabled=!1,this._enabled=!0;}enable(e){this._touchZoom.enable(e),this._rotationDisabled||this._touchRotate.enable(e),this._tapDragZoom.enable(),this._el.classList.add("mapboxgl-touch-zoom-rotate");}disable(){this._touchZoom.disable(),this._touchRotate.disable(),this._tapDragZoom.disable(),this._el.classList.remove("mapboxgl-touch-zoom-rotate");}isEnabled(){return this._touchZoom.isEnabled()&&(this._rotationDisabled||this._touchRotate.isEnabled())&&this._tapDragZoom.isEnabled()}isActive(){return this._touchZoom.isActive()||this._touchRotate.isActive()||this._tapDragZoom.isActive()}disableRotation(){this._rotationDisabled=!0,this._touchRotate.disable();}enableRotation(){this._rotationDisabled=!1,this._touchZoom.isEnabled()&&this._touchRotate.enable();}}const Wo=e=>e.zoom||e.drag||e.pitch||e.rotate;class Xo extends e.Event{}class Ho{constructor(){this.constants=[1,1,.01],this.radius=0;}setup(t,i){const o=e.sub([],i,t);this.radius=e.length(o[2]<0?e.div([],o,this.constants):[o[0],o[1],0]);}projectRay(t){e.div(t,t,this.constants),e.normalize(t,t),e.mul$1(t,t,this.constants);const i=e.scale$2([],t,this.radius);if(i[2]>0){const t=e.scale$2([],[0,0,1],e.dot(i,[0,0,1])),o=e.scale$2([],e.normalize([],[i[0],i[1],0]),this.radius),a=e.add([],i,e.scale$2([],e.sub([],e.add([],o,t),i),2));i[0]=a[0],i[1]=a[1];}return i}}function Ko(e){return e.panDelta&&e.panDelta.mag()||e.zoomDelta||e.bearingDelta||e.pitchDelta}class Yo{constructor(t,o){this._map=t,this._el=this._map.getCanvasContainer(),this._handlers=[],this._handlersById={},this._changes=[],this._inertia=new co(t),this._bearingSnap=o.bearingSnap,this._previousActiveHandlers={},this._trackingEllipsoid=new Ho,this._dragOrigin=null,this._eventsInProgress={},this._addDefaultHandlers(o),e.bindAll(["handleEvent","handleWindowEvent"],this);const a=this._el;this._listeners=[[a,"touchstart",{passive:!0}],[a,"touchmove",{passive:!1}],[a,"touchend",void 0],[a,"touchcancel",void 0],[a,"mousedown",void 0],[a,"mousemove",void 0],[a,"mouseup",void 0],[e.window.document,"mousemove",{capture:!0}],[e.window.document,"mouseup",void 0],[a,"mouseover",void 0],[a,"mouseout",void 0],[a,"dblclick",void 0],[a,"click",void 0],[a,"keydown",{capture:!1}],[a,"keyup",void 0],[a,"wheel",{passive:!1}],[a,"contextmenu",void 0],[e.window,"blur",void 0]];for(const[t,o,a]of this._listeners)i.addEventListener(t,o,t===e.window.document?this.handleWindowEvent:this.handleEvent,a);}destroy(){for(const[t,o,a]of this._listeners)i.removeEventListener(t,o,t===e.window.document?this.handleWindowEvent:this.handleEvent,a);}_addDefaultHandlers(e){const t=this._map,i=t.getCanvasContainer();this._add("mapEvent",new fo(t,e));const o=t.boxZoom=new vo(t,e);this._add("boxZoom",o);const a=new wo,r=new Go;t.doubleClickZoom=new Zo(r,a),this._add("tapZoom",a),this._add("clickZoom",r);const n=new qo;this._add("tapDragZoom",n);const s=t.touchPitch=new Bo;this._add("touchPitch",s);const l=new So(e),c=new Io(e);t.dragRotate=new $o(e,l,c),this._add("mouseRotate",l,["mousePitch"]),this._add("mousePitch",c,["mouseRotate"]);const h=new Co(e),u=new Po(e);t.dragPan=new Vo(i,h,u),this._add("mousePan",h),this._add("touchPan",u,["touchZoom","touchRotate"]);const d=new Ro,_=new Do;t.touchZoomRotate=new jo(i,_,d,n),this._add("touchRotate",d,["touchPan","touchZoom"]),this._add("touchZoom",_,["touchPan","touchRotate"]);const m=t.scrollZoom=new No(t,this);this._add("scrollZoom",m,["mousePan"]);const p=t.keyboard=new Oo;this._add("keyboard",p),this._add("blockableMapEvent",new go(t));for(const i of ["boxZoom","doubleClickZoom","tapDragZoom","touchPitch","dragRotate","dragPan","touchZoomRotate","scrollZoom","keyboard"])e.interactive&&e[i]&&t[i].enable(e[i]);}_add(e,t,i){this._handlers.push({handlerName:e,handler:t,allowed:i}),this._handlersById[e]=t;}stop(e){if(!this._updatingCamera){for(const{handler:e}of this._handlers)e.reset();this._inertia.clear(),this._fireEvents({},{},e),this._changes=[];}}isActive(){for(const{handler:e}of this._handlers)if(e.isActive())return !0;return !1}isZooming(){return !!this._eventsInProgress.zoom||this._map.scrollZoom.isZooming()}isRotating(){return !!this._eventsInProgress.rotate}isMoving(){return Boolean(Wo(this._eventsInProgress))||this.isZooming()}_blockedByActive(e,t,i){for(const o in e)if(o!==i&&(!t||t.indexOf(o)<0))return !0;return !1}handleWindowEvent(e){this.handleEvent(e,`${e.type}Window`);}_getMapTouches(e){const t=[];for(const i of e)this._el.contains(i.target)&&t.push(i);return t}handleEvent(e,t){if("blur"===e.type)return void this.stop(!0);this._updatingCamera=!0;const o="renderFrame"===e.type?void 0:e,a={needsRenderFrame:!1},r={},n={},s=e.touches?this._getMapTouches(e.touches):void 0,l=s?i.touchPos(this._el,s):i.mousePos(this._el,e);for(const{handlerName:i,handler:c,allowed:h}of this._handlers){if(!c.isEnabled())continue;let u;this._blockedByActive(n,h,i)?c.reset():c[t||e.type]&&(u=c[t||e.type](e,l,s),this.mergeHandlerResult(a,r,u,i,o),u&&u.needsRenderFrame&&this._triggerRenderFrame()),(u||c.isActive())&&(n[i]=c);}const c={};for(const e in this._previousActiveHandlers)n[e]||(c[e]=o);this._previousActiveHandlers=n,(Object.keys(c).length||Ko(a))&&(this._changes.push([a,r,c]),this._triggerRenderFrame()),(Object.keys(n).length||Ko(a))&&this._map._stop(!0),this._updatingCamera=!1;const{cameraAnimation:h}=a;h&&(this._inertia.clear(),this._fireEvents({},{},!0),this._changes=[],h(this._map));}mergeHandlerResult(t,i,o,a,r){if(!o)return;e.extend(t,o);const n={handlerName:a,originalEvent:o.originalEvent||r};void 0!==o.zoomDelta&&(i.zoom=n),void 0!==o.panDelta&&(i.drag=n),void 0!==o.pitchDelta&&(i.pitch=n),void 0!==o.bearingDelta&&(i.rotate=n);}_applyChanges(){const t={},i={},o={};for(const[a,r,n]of this._changes)a.panDelta&&(t.panDelta=(t.panDelta||new e.Point(0,0))._add(a.panDelta)),a.zoomDelta&&(t.zoomDelta=(t.zoomDelta||0)+a.zoomDelta),a.bearingDelta&&(t.bearingDelta=(t.bearingDelta||0)+a.bearingDelta),a.pitchDelta&&(t.pitchDelta=(t.pitchDelta||0)+a.pitchDelta),void 0!==a.around&&(t.around=a.around),void 0!==a.aroundCoord&&(t.aroundCoord=a.aroundCoord),void 0!==a.pinchAround&&(t.pinchAround=a.pinchAround),a.noInertia&&(t.noInertia=a.noInertia),e.extend(i,r),e.extend(o,n);this._updateMapTransform(t,i,o),this._changes=[];}_updateMapTransform(t,i,o){const a=this._map,r=a.transform,n=e=>[e.x,e.y,e.z];if((e=>{const t=this._eventsInProgress.drag;return t&&!this._handlersById[t.handlerName].isActive()})()&&!Ko(t)){const e=r.zoom;r.cameraElevationReference="sea",r.recenterOnTerrain(),r.cameraElevationReference="ground",e!==r.zoom&&this._map._update(!0);}if(!Ko(t))return this._fireEvents(i,o,!0);let{panDelta:s,zoomDelta:l,bearingDelta:c,pitchDelta:h,around:u,aroundCoord:d,pinchAround:_}=t;void 0!==_&&(u=_),(e=>i.drag&&!this._eventsInProgress.drag)()&&u&&(this._dragOrigin=n(r.pointCoordinate3D(u)),this._trackingEllipsoid.setup(r._camera.position,this._dragOrigin)),r.cameraElevationReference="sea",a._stop(!0),u=u||a.transform.centerPoint,c&&(r.bearing+=c),h&&(r.pitch+=h),r._updateCameraState();const m=[0,0,0];if(s){const e=r.screenPointToMercatorRay(u),t=r.screenPointToMercatorRay(u.sub(s)),i=this._trackingEllipsoid.projectRay(e.dir),o=this._trackingEllipsoid.projectRay(t.dir);m[0]=o[0]-i[0],m[1]=o[1]-i[1];}const p=r.zoom,f=[0,0,0];if(l){const t=n(d||r.pointCoordinate3D(u)),i={dir:e.normalize([],e.sub([],t,r._camera.position))},o=r.screenPointToMercatorRay(r.centerPoint);if(i.dir[2]<0){const a=e.altitudeFromMercatorZ(t[2],t[1]),s=r.rayIntersectionCoordinate(r.pointRayIntersection(r.centerPoint,a)),c=r.zoomDeltaToMovement(n(s),l)*(o.dir[2]/i.dir[2]);e.scale$2(f,i.dir,c);}else if(r._terrainEnabled()){const o=r.zoomDeltaToMovement(t,l);e.scale$2(f,i.dir,o);}}const g=e.add(m,m,f);r._translateCameraConstrained(g),l&&Math.abs(r.zoom-p)>1e-4&&r.recenterOnTerrain(),r.cameraElevationReference="ground",this._map._update(),t.noInertia||this._inertia.record(t),this._fireEvents(i,o,!0);}_fireEvents(t,i,o){const a=Wo(this._eventsInProgress),r=Wo(t),n={};for(const e in t){const{originalEvent:i}=t[e];this._eventsInProgress[e]||(n[`${e}start`]=i),this._eventsInProgress[e]=t[e];}!a&&r&&this._fireEvent("movestart",r.originalEvent);for(const e in n)this._fireEvent(e,n[e]);r&&this._fireEvent("move",r.originalEvent);for(const e in t){const{originalEvent:i}=t[e];this._fireEvent(e,i);}const s={};let l;for(const e in this._eventsInProgress){const{handlerName:t,originalEvent:o}=this._eventsInProgress[e];this._handlersById[t].isActive()||(delete this._eventsInProgress[e],l=i[t]||o,s[`${e}end`]=l);}for(const e in s)this._fireEvent(e,s[e]);const c=Wo(this._eventsInProgress);if(o&&(a||r)&&!c){this._updatingCamera=!0;const t=this._inertia._onMoveEnd(this._map.dragPan._inertiaOptions),i=e=>0!==e&&-this._bearingSnap{delete this._frameId,this.handleEvent(new Xo("renderFrame",{timeStamp:e})),this._applyChanges();})}_triggerRenderFrame(){void 0===this._frameId&&(this._frameId=this._requestFrame());}}class Jo extends e.Evented{constructor(t,i){super(),this._moving=!1,this._zooming=!1,this.transform=t,this._bearingSnap=i.bearingSnap,e.bindAll(["_renderFrameCallback"],this);}getCenter(){return new e.LngLat(this.transform.center.lng,this.transform.center.lat)}setCenter(e,t){return this.jumpTo({center:e},t)}panBy(t,i,o){return t=e.Point.convert(t).mult(-1),this.panTo(this.transform.center,e.extend({offset:t},i),o)}panTo(t,i,o){return this.easeTo(e.extend({center:t},i),o)}getZoom(){return this.transform.zoom}setZoom(e,t){return this.jumpTo({zoom:e},t),this}zoomTo(t,i,o){return this.easeTo(e.extend({zoom:t},i),o)}zoomIn(e,t){return this.zoomTo(this.getZoom()+1,e,t),this}zoomOut(e,t){return this.zoomTo(this.getZoom()-1,e,t),this}getBearing(){return this.transform.bearing}setBearing(e,t){return this.jumpTo({bearing:e},t),this}getPadding(){return this.transform.padding}setPadding(e,t){return this.jumpTo({padding:e},t),this}rotateTo(t,i,o){return this.easeTo(e.extend({bearing:t},i),o)}resetNorth(t,i){return this.rotateTo(0,e.extend({duration:1e3},t),i),this}resetNorthPitch(t,i){return this.easeTo(e.extend({bearing:0,pitch:0,duration:1e3},t),i),this}snapToNorth(e,t){return Math.abs(this.getBearing()){if(this._zooming&&(o.zoom=e.number(a,l,t)),this._rotating&&(o.bearing=e.number(r,c,t)),this._pitching&&(o.pitch=e.number(n,h,t)),this._padding&&(o.interpolatePadding(s,u,t),_=o.centerPoint.add(d)),x)o.setLocationAtPoint(x,y);else {const e=o.zoomScale(o.zoom-a),i=l>a?Math.min(2,v):Math.max(.5,v),r=Math.pow(i,1-t),n=o.unproject(f.add(g.mult(t*r)).mult(e));o.setLocationAtPoint(o.renderWorldCopies?n.wrap():n,_);}this._fireMoveEvents(i);},e=>{o.recenterOnTerrain(),this._afterEase(i,e);},t),this}_prepareEase(t,i,o={}){this._moving=!0,this.transform.cameraElevationReference="sea",i||o.moving||this.fire(new e.Event("movestart",t)),this._zooming&&!o.zooming&&this.fire(new e.Event("zoomstart",t)),this._rotating&&!o.rotating&&this.fire(new e.Event("rotatestart",t)),this._pitching&&!o.pitching&&this.fire(new e.Event("pitchstart",t));}_fireMoveEvents(t){this.fire(new e.Event("move",t)),this._zooming&&this.fire(new e.Event("zoom",t)),this._rotating&&this.fire(new e.Event("rotate",t)),this._pitching&&this.fire(new e.Event("pitch",t));}_afterEase(t,i){if(this._easeId&&i&&this._easeId===i)return;delete this._easeId,this.transform.cameraElevationReference="ground";const o=this._zooming,a=this._rotating,r=this._pitching;this._moving=!1,this._zooming=!1,this._rotating=!1,this._pitching=!1,this._padding=!1,o&&this.fire(new e.Event("zoomend",t)),a&&this.fire(new e.Event("rotateend",t)),r&&this.fire(new e.Event("pitchend",t)),this.fire(new e.Event("moveend",t));}flyTo(t,i){if(!t.essential&&e.browser.prefersReducedMotion){const o=e.pick(t,["center","zoom","bearing","pitch","around"]);return this.jumpTo(o,i)}this.stop(),t=e.extend({offset:[0,0],speed:1.2,curve:1.42,easing:e.ease},t);const o=this.transform,a=this.getZoom(),r=this.getBearing(),n=this.getPitch(),s=this.getPadding(),l="zoom"in t?e.clamp(+t.zoom,o.minZoom,o.maxZoom):a,c="bearing"in t?this._normalizeBearing(t.bearing,r):r,h="pitch"in t?+t.pitch:n,u="padding"in t?t.padding:o.padding,d=o.zoomScale(l-a),_=e.Point.convert(t.offset);let m=o.centerPoint.add(_);const p=o.pointLocation(m),f=e.LngLat.convert(t.center||p);this._normalizeCenter(f);const g=o.project(p),v=o.project(f).sub(g);let x=t.curve;const y=Math.max(o.width,o.height),b=y/d,w=v.mag();if("minZoom"in t){const i=e.clamp(Math.min(t.minZoom,a,l),o.minZoom,o.maxZoom),r=y/o.zoomScale(i-a);x=Math.sqrt(r/w*2);}const T=x*x;function E(e){const t=(b*b-y*y+(e?-1:1)*T*T*w*w)/(2*(e?b:y)*T*w);return Math.log(Math.sqrt(t*t+1)-t)}function C(e){return (Math.exp(e)-Math.exp(-e))/2}function S(e){return (Math.exp(e)+Math.exp(-e))/2}const I=E(0);let P=function(e){return S(I)/S(I+x*e)},M=function(e){return y*((S(I)*(C(t=I+x*e)/S(t))-C(I))/T)/w;var t;},z=(E(1)-I)/x;if(Math.abs(w)<1e-6||!isFinite(z)){if(Math.abs(y-b)<1e-6)return this.easeTo(t,i);const e=bt.maxDuration&&(t.duration=0),this._zooming=!0,this._rotating=r!==c,this._pitching=h!==n,this._padding=!o.isPaddingEqual(u),this._prepareEase(i,!1),this._ease(t=>{const d=t*z,p=1/P(d);o.zoom=1===t?l:a+o.scaleZoom(p),this._rotating&&(o.bearing=e.number(r,c,t)),this._pitching&&(o.pitch=e.number(n,h,t)),this._padding&&(o.interpolatePadding(s,u,t),m=o.centerPoint.add(_));const x=1===t?f:o.unproject(g.add(v.mult(M(d))).mult(p));o.setLocationAtPoint(o.renderWorldCopies?x.wrap():x,m),o._updateCenterElevation(),this._fireMoveEvents(i);},()=>this._afterEase(i),t),this}isEasing(){return !!this._easeFrameId}stop(){return this._stop()}_stop(e,t){if(this._easeFrameId&&(this._cancelRenderFrame(this._easeFrameId),delete this._easeFrameId,delete this._onEaseFrame),this._onEaseEnd){const e=this._onEaseEnd;delete this._onEaseEnd,e.call(this,t);}if(!e){const e=this.handlers;e&&e.stop(!1);}return this}_ease(t,i,o){!1===o.animate||0===o.duration?(t(1),i()):(this._easeStart=e.browser.now(),this._easeOptions=o,this._onEaseFrame=t,this._onEaseEnd=i,this._easeFrameId=this._requestRenderFrame(this._renderFrameCallback));}_renderFrameCallback(){const t=Math.min((e.browser.now()-this._easeStart)/this._easeOptions.duration,1);this._onEaseFrame(this._easeOptions.easing(t)),t<1?this._easeFrameId=this._requestRenderFrame(this._renderFrameCallback):this.stop();}_normalizeBearing(t,i){t=e.wrap(t,-180,180);const o=Math.abs(t-i);return Math.abs(t-360-i)180?-360:i<-180?360:0;}}class Qo{constructor(t={}){this.options=t,e.bindAll(["_toggleAttribution","_updateEditLink","_updateData","_updateCompact"],this);}getDefaultPosition(){return "bottom-right"}onAdd(e){const t=this.options&&this.options.compact;return this._map=e,this._container=i.create("div","mapboxgl-ctrl mapboxgl-ctrl-attrib"),this._compactButton=i.create("button","mapboxgl-ctrl-attrib-button",this._container),this._compactButton.addEventListener("click",this._toggleAttribution),this._setElementTitle(this._compactButton,"ToggleAttribution"),this._innerContainer=i.create("div","mapboxgl-ctrl-attrib-inner",this._container),this._innerContainer.setAttribute("role","list"),t&&this._container.classList.add("mapboxgl-compact"),this._updateAttributions(),this._updateEditLink(),this._map.on("styledata",this._updateData),this._map.on("sourcedata",this._updateData),this._map.on("moveend",this._updateEditLink),void 0===t&&(this._map.on("resize",this._updateCompact),this._updateCompact()),this._container}onRemove(){i.remove(this._container),this._map.off("styledata",this._updateData),this._map.off("sourcedata",this._updateData),this._map.off("moveend",this._updateEditLink),this._map.off("resize",this._updateCompact),this._map=void 0,this._attribHTML=void 0;}_setElementTitle(e,t){const i=this._map._getUIString(`AttributionControl.${t}`);e.title=i,e.setAttribute("aria-label",i);}_toggleAttribution(){this._container.classList.contains("mapboxgl-compact-show")?(this._container.classList.remove("mapboxgl-compact-show"),this._compactButton.setAttribute("aria-pressed","false")):(this._container.classList.add("mapboxgl-compact-show"),this._compactButton.setAttribute("aria-pressed","true"));}_updateEditLink(){let t=this._editLink;t||(t=this._editLink=this._container.querySelector(".mapbox-improve-map"));const i=[{key:"owner",value:this.styleOwner},{key:"id",value:this.styleId},{key:"access_token",value:this._map._requestManager._customAccessToken||e.config.ACCESS_TOKEN}];if(t){const o=i.reduce((e,t,o)=>(t.value&&(e+=`${t.key}=${t.value}${o"string"!=typeof e?"":e)):"string"==typeof this.options.customAttribution&&e.push(this.options.customAttribution)),this._map.style.stylesheet){const e=this._map.style.stylesheet;this.styleOwner=e.owner,this.styleId=e.id;}const t=this._map.style._sourceCaches;for(const i in t){const o=t[i];if(o.used){const t=o.getSource();t.attribution&&e.indexOf(t.attribution)<0&&e.push(t.attribution);}}e.sort((e,t)=>e.length-t.length),e=e.filter((t,i)=>{for(let o=i+1;o=0)return !1;return !0});const i=e.join(" | ");i!==this._attribHTML&&(this._attribHTML=i,e.length?(this._innerContainer.innerHTML=i,this._container.classList.remove("mapboxgl-attrib-empty")):this._container.classList.add("mapboxgl-attrib-empty"),this._editLink=null);}_updateCompact(){this._map.getCanvasContainer().offsetWidth<=640?this._container.classList.add("mapboxgl-compact"):this._container.classList.remove("mapboxgl-compact","mapboxgl-compact-show");}}class ea{constructor(){e.bindAll(["_updateLogo"],this),e.bindAll(["_updateCompact"],this);}onAdd(e){this._map=e,this._container=i.create("div","mapboxgl-ctrl");const t=i.create("a","mapboxgl-ctrl-logo");return t.target="_blank",t.rel="noopener nofollow",t.href="https://www.mapbox.com/",t.setAttribute("aria-label",this._map._getUIString("LogoControl.Title")),t.setAttribute("rel","noopener nofollow"),this._container.appendChild(t),this._container.style.display="none",this._map.on("sourcedata",this._updateLogo),this._updateLogo(),this._map.on("resize",this._updateCompact),this._updateCompact(),this._container}onRemove(){i.remove(this._container),this._map.off("sourcedata",this._updateLogo),this._map.off("resize",this._updateCompact);}getDefaultPosition(){return "bottom-left"}_updateLogo(e){e&&"metadata"!==e.sourceDataType||(this._container.style.display=this._logoRequired()?"block":"none");}_logoRequired(){if(!this._map.style)return;const e=this._map.style._sourceCaches;if(0===Object.entries(e).length)return !0;for(const t in e){const i=e[t].getSource();if(i.hasOwnProperty("mapbox_logo")&&!i.mapbox_logo)return !1}return !0}_updateCompact(){const e=this._container.children;if(e.length){const t=e[0];this._map.getCanvasContainer().offsetWidth<250?t.classList.add("mapboxgl-compact"):t.classList.remove("mapboxgl-compact");}}}class ta{constructor(){this._queue=[],this._id=0,this._cleared=!1,this._currentlyRunning=!1;}add(e){const t=++this._id;return this._queue.push({callback:e,id:t,cancelled:!1}),t}remove(e){const t=this._currentlyRunning,i=t?this._queue.concat(t):this._queue;for(const t of i)if(t.id===e)return void(t.cancelled=!0)}run(e=0){const t=this._currentlyRunning=this._queue;this._queue=[];for(const i of t)if(!i.cancelled&&(i.callback(e),this._cleared))break;this._cleared=!1,this._currentlyRunning=!1;}clear(){this._currentlyRunning&&(this._cleared=!0),this._queue=[];}}const ia={"AttributionControl.ToggleAttribution":"Toggle attribution","AttributionControl.MapFeedback":"Map feedback","FullscreenControl.Enter":"Enter fullscreen","FullscreenControl.Exit":"Exit fullscreen","GeolocateControl.FindMyLocation":"Find my location","GeolocateControl.LocationNotAvailable":"Location not available","LogoControl.Title":"Mapbox logo","NavigationControl.ResetBearing":"Reset bearing to north","NavigationControl.ZoomIn":"Zoom in","NavigationControl.ZoomOut":"Zoom out","ScaleControl.Feet":"ft","ScaleControl.Meters":"m","ScaleControl.Kilometers":"km","ScaleControl.Miles":"mi","ScaleControl.NauticalMiles":"nm"},{HTMLImageElement:oa,HTMLElement:aa,ImageBitmap:ra}=e.window,na={center:[0,0],zoom:0,bearing:0,pitch:0,minZoom:-2,maxZoom:22,minPitch:0,maxPitch:85,interactive:!0,scrollZoom:!0,boxZoom:!0,dragRotate:!0,dragPan:!0,keyboard:!0,doubleClickZoom:!0,touchZoomRotate:!0,touchPitch:!0,bearingSnap:7,clickTolerance:3,pitchWithRotate:!0,hash:!1,attributionControl:!0,failIfMajorPerformanceCaveat:!1,preserveDrawingBuffer:!1,trackResize:!0,renderWorldCopies:!0,refreshExpiredTiles:!0,maxTileCacheSize:null,localIdeographFontFamily:"sans-serif",transformRequest:null,accessToken:null,fadeDuration:300,crossSourceCollisions:!0};function sa(e){e.parentNode&&e.parentNode.removeChild(e);}const la={showCompass:!0,showZoom:!0,visualizePitch:!1};class ca{constructor(t,o,a=!1){this._clickTolerance=10,this.element=o,this.mouseRotate=new So({clickTolerance:t.dragRotate._mouseRotate._clickTolerance}),this.map=t,a&&(this.mousePitch=new Io({clickTolerance:t.dragRotate._mousePitch._clickTolerance})),e.bindAll(["mousedown","mousemove","mouseup","touchstart","touchmove","touchend","reset"],this),i.addEventListener(o,"mousedown",this.mousedown),i.addEventListener(o,"touchstart",this.touchstart,{passive:!1}),i.addEventListener(o,"touchmove",this.touchmove),i.addEventListener(o,"touchend",this.touchend),i.addEventListener(o,"touchcancel",this.reset);}down(e,t){this.mouseRotate.mousedown(e,t),this.mousePitch&&this.mousePitch.mousedown(e,t),i.disableDrag();}move(e,t){const i=this.map,o=this.mouseRotate.mousemoveWindow(e,t);if(o&&o.bearingDelta&&i.setBearing(i.getBearing()+o.bearingDelta),this.mousePitch){const o=this.mousePitch.mousemoveWindow(e,t);o&&o.pitchDelta&&i.setPitch(i.getPitch()+o.pitchDelta);}}off(){const e=this.element;i.removeEventListener(e,"mousedown",this.mousedown),i.removeEventListener(e,"touchstart",this.touchstart,{passive:!1}),i.removeEventListener(e,"touchmove",this.touchmove),i.removeEventListener(e,"touchend",this.touchend),i.removeEventListener(e,"touchcancel",this.reset),this.offTemp();}offTemp(){i.enableDrag(),i.removeEventListener(e.window,"mousemove",this.mousemove),i.removeEventListener(e.window,"mouseup",this.mouseup);}mousedown(t){this.down(e.extend({},t,{ctrlKey:!0,preventDefault:()=>t.preventDefault()}),i.mousePos(this.element,t)),i.addEventListener(e.window,"mousemove",this.mousemove),i.addEventListener(e.window,"mouseup",this.mouseup);}mousemove(e){this.move(e,i.mousePos(this.element,e));}mouseup(e){this.mouseRotate.mouseupWindow(e),this.mousePitch&&this.mousePitch.mouseupWindow(e),this.offTemp();}touchstart(e){1!==e.targetTouches.length?this.reset():(this._startPos=this._lastPos=i.touchPos(this.element,e.targetTouches)[0],this.down({type:"mousedown",button:0,ctrlKey:!0,preventDefault:()=>e.preventDefault()},this._startPos));}touchmove(e){1!==e.targetTouches.length?this.reset():(this._lastPos=i.touchPos(this.element,e.targetTouches)[0],this.move({preventDefault:()=>e.preventDefault()},this._lastPos));}touchend(e){0===e.targetTouches.length&&this._startPos&&this._lastPos&&this._startPos.dist(this._lastPos)o.width||i.y>o.height;o.locationPoint(a).distSqr(i)180;){const e=o.locationPoint(t);if(e.x>=0&&e.y>=0&&e.x<=o.width&&e.y<=o.height)break;t.lng>o.center.lng?t.lng-=360:t.lng+=360;}return t}const ua={center:"translate(-50%,-50%)",top:"translate(-50%,0)","top-left":"translate(0,0)","top-right":"translate(-100%,0)",bottom:"translate(-50%,-100%)","bottom-left":"translate(0,-100%)","bottom-right":"translate(-100%,-100%)",left:"translate(0,-50%)",right:"translate(-100%,-50%)"};function da(e,t,i){const o=e.classList;for(const e in ua)o.remove(`mapboxgl-${i}-anchor-${e}`);o.add(`mapboxgl-${i}-anchor-${t}`);}class _a extends e.Evented{constructor(t,o){if(super(),(t instanceof e.window.HTMLElement||o)&&(t=e.extend({element:t},o)),e.bindAll(["_update","_onMove","_onUp","_addDragHandler","_onMapClick","_onKeyPress"],this),this._anchor=t&&t.anchor||"center",this._color=t&&t.color||"#3FB1CE",this._scale=t&&t.scale||1,this._draggable=t&&t.draggable||!1,this._clickTolerance=t&&t.clickTolerance||0,this._isDragging=!1,this._state="inactive",this._rotation=t&&t.rotation||0,this._rotationAlignment=t&&t.rotationAlignment||"auto",this._pitchAlignment=t&&t.pitchAlignment&&"auto"!==t.pitchAlignment?t.pitchAlignment:this._rotationAlignment,t&&t.element)this._element=t.element,this._offset=e.Point.convert(t&&t.offset||[0,0]);else {this._defaultMarker=!0,this._element=i.create("div"),this._element.setAttribute("aria-label","Map marker");const o=i.createNS("http://www.w3.org/2000/svg","svg"),a=41,r=27;o.setAttributeNS(null,"display","block"),o.setAttributeNS(null,"height",`${a}px`),o.setAttributeNS(null,"width",`${r}px`),o.setAttributeNS(null,"viewBox",`0 0 ${r} ${a}`);const n=i.createNS("http://www.w3.org/2000/svg","g");n.setAttributeNS(null,"stroke","none"),n.setAttributeNS(null,"stroke-width","1"),n.setAttributeNS(null,"fill","none"),n.setAttributeNS(null,"fill-rule","evenodd");const s=i.createNS("http://www.w3.org/2000/svg","g");s.setAttributeNS(null,"fill-rule","nonzero");const l=i.createNS("http://www.w3.org/2000/svg","g");l.setAttributeNS(null,"transform","translate(3.0, 29.0)"),l.setAttributeNS(null,"fill","#000000");const c=[{rx:"10.5",ry:"5.25002273"},{rx:"10.5",ry:"5.25002273"},{rx:"9.5",ry:"4.77275007"},{rx:"8.5",ry:"4.29549936"},{rx:"7.5",ry:"3.81822308"},{rx:"6.5",ry:"3.34094679"},{rx:"5.5",ry:"2.86367051"},{rx:"4.5",ry:"2.38636864"}];for(const e of c){const t=i.createNS("http://www.w3.org/2000/svg","ellipse");t.setAttributeNS(null,"opacity","0.04"),t.setAttributeNS(null,"cx","10.5"),t.setAttributeNS(null,"cy","5.80029008"),t.setAttributeNS(null,"rx",e.rx),t.setAttributeNS(null,"ry",e.ry),l.appendChild(t);}const h=i.createNS("http://www.w3.org/2000/svg","g");h.setAttributeNS(null,"fill",this._color);const u=i.createNS("http://www.w3.org/2000/svg","path");u.setAttributeNS(null,"d","M27,13.5 C27,19.074644 20.250001,27.000002 14.75,34.500002 C14.016665,35.500004 12.983335,35.500004 12.25,34.500002 C6.7499993,27.000002 0,19.222562 0,13.5 C0,6.0441559 6.0441559,0 13.5,0 C20.955844,0 27,6.0441559 27,13.5 Z"),h.appendChild(u);const d=i.createNS("http://www.w3.org/2000/svg","g");d.setAttributeNS(null,"opacity","0.25"),d.setAttributeNS(null,"fill","#000000");const _=i.createNS("http://www.w3.org/2000/svg","path");_.setAttributeNS(null,"d","M13.5,0 C6.0441559,0 0,6.0441559 0,13.5 C0,19.222562 6.7499993,27 12.25,34.5 C13,35.522727 14.016664,35.500004 14.75,34.5 C20.250001,27 27,19.074644 27,13.5 C27,6.0441559 20.955844,0 13.5,0 Z M13.5,1 C20.415404,1 26,6.584596 26,13.5 C26,15.898657 24.495584,19.181431 22.220703,22.738281 C19.945823,26.295132 16.705119,30.142167 13.943359,33.908203 C13.743445,34.180814 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g=i.createNS("http://www.w3.org/2000/svg","circle");g.setAttributeNS(null,"fill","#FFFFFF"),g.setAttributeNS(null,"cx","5.5"),g.setAttributeNS(null,"cy","5.5"),g.setAttributeNS(null,"r","5.4999962"),p.appendChild(f),p.appendChild(g),s.appendChild(l),s.appendChild(h),s.appendChild(d),s.appendChild(m),s.appendChild(p),o.appendChild(s),o.setAttributeNS(null,"height",`${a*this._scale}px`),o.setAttributeNS(null,"width",`${r*this._scale}px`),this._element.appendChild(o),this._offset=e.Point.convert(t&&t.offset||[0,-14]);}this._element.classList.add("mapboxgl-marker"),this._element.addEventListener("dragstart",e=>{e.preventDefault();}),this._element.addEventListener("mousedown",e=>{e.preventDefault();}),da(this._element,this._anchor,"marker"),this._popup=null;}addTo(e){return this.remove(),this._map=e,e.getCanvasContainer().appendChild(this._element),e.on("move",this._update),e.on("moveend",this._update),this.setDraggable(this._draggable),this._update(),this._map.on("click",this._onMapClick),this}remove(){return this._map&&(this._map.off("click",this._onMapClick),this._map.off("move",this._update),this._map.off("moveend",this._update),this._map.off("mousedown",this._addDragHandler),this._map.off("touchstart",this._addDragHandler),this._map.off("mouseup",this._onUp),this._map.off("touchend",this._onUp),this._map.off("mousemove",this._onMove),this._map.off("touchmove",this._onMove),delete this._map),i.remove(this._element),this._popup&&this._popup.remove(),this}getLngLat(){return this._lngLat}setLngLat(t){return this._lngLat=e.LngLat.convert(t),this._pos=null,this._popup&&this._popup.setLngLat(this._lngLat),this._update(),this}getElement(){return this._element}setPopup(e){if(this._popup&&(this._popup.remove(),this._popup=null,this._element.removeEventListener("keypress",this._onKeyPress),this._originalTabIndex||this._element.removeAttribute("tabindex")),e){if(!("offset"in e.options)){const t=38.1,i=13.5,o=Math.sqrt(Math.pow(i,2)/2);e.options.offset=this._defaultMarker?{top:[0,0],"top-left":[0,0],"top-right":[0,0],bottom:[0,-t],"bottom-left":[o,-1*(t-i+o)],"bottom-right":[-o,-1*(t-i+o)],left:[i,-1*(t-i)],right:[-i,-1*(t-i)]}:this._offset;}this._popup=e,this._lngLat&&this._popup.setLngLat(this._lngLat),this._originalTabIndex=this._element.getAttribute("tabindex"),this._originalTabIndex||this._element.setAttribute("tabindex","0"),this._element.addEventListener("keypress",this._onKeyPress);}return this}_onKeyPress(e){const t=e.code,i=e.charCode||e.keyCode;"Space"!==t&&"Enter"!==t&&32!==i&&13!==i||this.togglePopup();}_onMapClick(e){const t=e.originalEvent.target,i=this._element;this._popup&&(t===i||i.contains(t))&&this.togglePopup();}getPopup(){return this._popup}togglePopup(){const e=this._popup;return e?(e.isOpen()?e.remove():e.addTo(this._map),this):this}_updateOcclusion(){this._occlusionTimer||(this._occlusionTimer=setTimeout(this._onOcclusionTimer.bind(this),60));}_onOcclusionTimer(){const e=this._map.transform,t=this._pos?this._pos.sub(this._transformedOffset()):null;if(t&&t.x>=0&&t.x=0&&t.y=e;}this._isDragging&&(this._pos=t.point.sub(this._positionDelta),this._lngLat=this._map.unproject(this._pos),this.setLngLat(this._lngLat),this._element.style.pointerEvents="none","pending"===this._state&&(this._state="active",this.fire(new e.Event("dragstart"))),this.fire(new e.Event("drag")));}_onUp(){this._element.style.pointerEvents="auto",this._positionDelta=null,this._pointerdownPos=null,this._isDragging=!1,this._map.off("mousemove",this._onMove),this._map.off("touchmove",this._onMove),"active"===this._state&&this.fire(new e.Event("dragend")),this._state="inactive";}_addDragHandler(e){this._element.contains(e.originalEvent.target)&&(e.preventDefault(),this._positionDelta=e.point.sub(this._pos).add(this._transformedOffset()),this._pointerdownPos=e.point,this._state="pending",this._map.on("mousemove",this._onMove),this._map.on("touchmove",this._onMove),this._map.once("mouseup",this._onUp),this._map.once("touchend",this._onUp));}setDraggable(e){return this._draggable=!!e,this._map&&(e?(this._map.on("mousedown",this._addDragHandler),this._map.on("touchstart",this._addDragHandler)):(this._map.off("mousedown",this._addDragHandler),this._map.off("touchstart",this._addDragHandler))),this}isDraggable(){return this._draggable}setRotation(e){return this._rotation=e||0,this._update(),this}getRotation(){return this._rotation}setRotationAlignment(e){return this._rotationAlignment=e||"auto",this._update(),this}getRotationAlignment(){return this._rotationAlignment}setPitchAlignment(e){return this._pitchAlignment=e&&"auto"!==e?e:this._rotationAlignment,this._update(),this}getPitchAlignment(){return this._pitchAlignment}}const ma={positionOptions:{enableHighAccuracy:!1,maximumAge:0,timeout:6e3},fitBoundsOptions:{maxZoom:15},trackUserLocation:!1,showAccuracyCircle:!0,showUserLocation:!0};let pa,fa=0,ga=!1;const va={maxWidth:100,unit:"metric"};function xa(e,t,i){const o=i&&i.maxWidth||100,a=e._container.clientHeight/2,r=e.unproject([0,a]),n=e.unproject([o,a]),s=r.distanceTo(n);if(i&&"imperial"===i.unit){const i=3.2808*s;i>5280?ya(t,o,i/5280,e._getUIString("ScaleControl.Miles")):ya(t,o,i,e._getUIString("ScaleControl.Feet"));}else i&&"nautical"===i.unit?ya(t,o,s/1852,e._getUIString("ScaleControl.NauticalMiles")):s>=1e3?ya(t,o,s/1e3,e._getUIString("ScaleControl.Kilometers")):ya(t,o,s,e._getUIString("ScaleControl.Meters"));}function ya(e,t,i,o){const a=function(e){const t=Math.pow(10,`${Math.floor(e)}`.length-1);let i=e/t;return i=i>=10?10:i>=5?5:i>=3?3:i>=2?2:i>=1?1:function(e){const t=Math.pow(10,Math.ceil(-Math.log(e)/Math.LN10));return Math.round(e*t)/t}(i),t*i}(i);e.style.width=`${t*(a/i)}px`,e.innerHTML=`${a} ${o}`;}const ba={closeButton:!0,closeOnClick:!0,focusAfterOpen:!0,className:"",maxWidth:"240px"},wa=["a[href]","[tabindex]:not([tabindex='-1'])","[contenteditable]:not([contenteditable='false'])","button:not([disabled])","input:not([disabled])","select:not([disabled])","textarea:not([disabled])"].join(", "),Ta={version:e.version,supported:t,setRTLTextPlugin:e.setRTLTextPlugin,getRTLTextPluginStatus:e.getRTLTextPluginStatus,Map:class extends Jo{constructor(t){if(null!=(t=e.extend({},na,t)).minZoom&&null!=t.maxZoom&&t.minZoom>t.maxZoom)throw new Error("maxZoom must be greater than or equal to minZoom");if(null!=t.minPitch&&null!=t.maxPitch&&t.minPitch>t.maxPitch)throw new Error("maxPitch must be greater than or equal to minPitch");if(null!=t.minPitch&&t.minPitch<0)throw new Error("minPitch must be greater than or equal to 0");if(null!=t.maxPitch&&t.maxPitch>85)throw new Error("maxPitch must be less than or equal to 85");if(super(new io(t.minZoom,t.maxZoom,t.minPitch,t.maxPitch,t.renderWorldCopies),t),this._interactive=t.interactive,this._maxTileCacheSize=t.maxTileCacheSize,this._failIfMajorPerformanceCaveat=t.failIfMajorPerformanceCaveat,this._preserveDrawingBuffer=t.preserveDrawingBuffer,this._antialias=t.antialias,this._trackResize=t.trackResize,this._bearingSnap=t.bearingSnap,this._refreshExpiredTiles=t.refreshExpiredTiles,this._fadeDuration=t.fadeDuration,this._isInitialLoad=!0,this._crossSourceCollisions=t.crossSourceCollisions,this._crossFadingFactor=1,this._collectResourceTiming=t.collectResourceTiming,this._renderTaskQueue=new ta,this._controls=[],this._mapId=e.uniqueId(),this._locale=e.extend({},ia,t.locale),this._clickTolerance=t.clickTolerance,this._requestManager=new e.RequestManager(t.transformRequest,t.accessToken),"string"==typeof t.container){if(this._container=e.window.document.getElementById(t.container),!this._container)throw new Error(`Container '${t.container}' not found.`)}else {if(!(t.container instanceof aa))throw new Error("Invalid type: 'container' must be a String or HTMLElement.");this._container=t.container;}if(t.maxBounds&&this.setMaxBounds(t.maxBounds),e.bindAll(["_onWindowOnline","_onWindowResize","_onMapScroll","_contextLost","_contextRestored"],this),this._setupContainer(),this._setupPainter(),void 0===this.painter)throw new Error("Failed to initialize WebGL.");this.on("move",()=>this._update(!1)),this.on("moveend",()=>this._update(!1)),this.on("zoom",()=>this._update(!0)),void 0!==e.window&&(e.window.addEventListener("online",this._onWindowOnline,!1),e.window.addEventListener("resize",this._onWindowResize,!1),e.window.addEventListener("orientationchange",this._onWindowResize,!1)),this.handlers=new Yo(this,t),this._hash=t.hash&&new oo("string"==typeof t.hash&&t.hash||void 0).addTo(this),this._hash&&this._hash._onHashChange()||(this.jumpTo({center:t.center,zoom:t.zoom,bearing:t.bearing,pitch:t.pitch}),t.bounds&&(this.resize(),this.fitBounds(t.bounds,e.extend({},t.fitBoundsOptions,{duration:0})))),this.resize(),this._localIdeographFontFamily=t.localIdeographFontFamily,t.style&&this.setStyle(t.style,{localIdeographFontFamily:t.localIdeographFontFamily}),t.attributionControl&&this.addControl(new Qo({customAttribution:t.customAttribution})),this._logoControl=new ea,this.addControl(this._logoControl,t.logoPosition),this.on("style.load",()=>{this.transform.unmodified&&this.jumpTo(this.style.stylesheet);}),this.on("data",t=>{this._update("style"===t.dataType),this.fire(new e.Event(`${t.dataType}data`,t));}),this.on("dataloading",t=>{this.fire(new e.Event(`${t.dataType}dataloading`,t));});}_getMapId(){return this._mapId}addControl(t,i){if(void 0===i&&(i=t.getDefaultPosition?t.getDefaultPosition():"top-right"),!t||!t.onAdd)return this.fire(new e.ErrorEvent(new Error("Invalid argument to map.addControl(). Argument must be a control with onAdd and onRemove methods.")));const o=t.onAdd(this);this._controls.push(t);const a=this._controlPositions[i];return -1!==i.indexOf("bottom")?a.insertBefore(o,a.firstChild):a.appendChild(o),this}removeControl(t){if(!t||!t.onRemove)return this.fire(new e.ErrorEvent(new Error("Invalid argument to map.removeControl(). Argument must be a control with onAdd and onRemove methods.")));const i=this._controls.indexOf(t);return i>-1&&this._controls.splice(i,1),t.onRemove(this),this}hasControl(e){return this._controls.indexOf(e)>-1}resize(t){const i=this._containerDimensions(),o=i[0],a=i[1];this._resizeCanvas(o,a),this.transform.resize(o,a),this.painter.resize(o,a);const r=!this._moving;return r&&(this.stop(),this.fire(new e.Event("movestart",t)).fire(new e.Event("move",t))),this.fire(new e.Event("resize",t)),r&&this.fire(new e.Event("moveend",t)),this}getBounds(){return this.transform.getBounds()}getMaxBounds(){return this.transform.getMaxBounds()}setMaxBounds(t){return this.transform.setMaxBounds(e.LngLatBounds.convert(t)),this._update()}setMinZoom(e){if((e=null==e?-2:e)>=-2&&e<=this.transform.maxZoom)return this.transform.minZoom=e,this._update(),this.getZoom()=this.transform.minZoom)return this.transform.maxZoom=e,this._update(),this.getZoom()>e&&this.setZoom(e),this;throw new Error("maxZoom must be greater than the current minZoom")}getMaxZoom(){return this.transform.maxZoom}setMinPitch(e){if((e=null==e?0:e)<0)throw new Error("minPitch must be greater than or equal to 0");if(e>=0&&e<=this.transform.maxPitch)return this.transform.minPitch=e,this._update(),this.getPitch()85)throw new Error("maxPitch must be less than or equal to 85");if(e>=this.transform.minPitch)return this.transform.maxPitch=e,this._update(),this.getPitch()>e&&this.setPitch(e),this;throw new Error("maxPitch must be greater than the current minPitch")}getMaxPitch(){return this.transform.maxPitch}getRenderWorldCopies(){return this.transform.renderWorldCopies}setRenderWorldCopies(e){return this.transform.renderWorldCopies=e,this._update()}project(t){return this.transform.locationPoint3D(e.LngLat.convert(t))}unproject(t){return this.transform.pointLocation3D(e.Point.convert(t))}isMoving(){return this._moving||this.handlers&&this.handlers.isMoving()}isZooming(){return this._zooming||this.handlers&&this.handlers.isZooming()}isRotating(){return this._rotating||this.handlers&&this.handlers.isRotating()}_createDelegatedListener(e,t,i){if("mouseenter"===e||"mouseover"===e){let o=!1;const a=a=>{const r=this.getLayer(t)?this.queryRenderedFeatures(a.point,{layers:[t]}):[];r.length?o||(o=!0,i.call(this,new _o(e,this,a.originalEvent,{features:r}))):o=!1;};return {layer:t,listener:i,delegates:{mousemove:a,mouseout:()=>{o=!1;}}}}if("mouseleave"===e||"mouseout"===e){let o=!1;const a=a=>{(this.getLayer(t)?this.queryRenderedFeatures(a.point,{layers:[t]}):[]).length?o=!0:o&&(o=!1,i.call(this,new _o(e,this,a.originalEvent)));},r=t=>{o&&(o=!1,i.call(this,new _o(e,this,t.originalEvent)));};return {layer:t,listener:i,delegates:{mousemove:a,mouseout:r}}}{const o=e=>{const o=this.getLayer(t)?this.queryRenderedFeatures(e.point,{layers:[t]}):[];o.length&&(e.features=o,i.call(this,e),delete e.features);};return {layer:t,listener:i,delegates:{[e]:o}}}}on(e,t,i){if(void 0===i)return super.on(e,t);const o=this._createDelegatedListener(e,t,i);this._delegatedListeners=this._delegatedListeners||{},this._delegatedListeners[e]=this._delegatedListeners[e]||[],this._delegatedListeners[e].push(o);for(const e in o.delegates)this.on(e,o.delegates[e]);return this}once(e,t,i){if(void 0===i)return super.once(e,t);const o=this._createDelegatedListener(e,t,i);for(const e in o.delegates)this.once(e,o.delegates[e]);return this}off(e,t,i){return void 0===i?super.off(e,t):(this._delegatedListeners&&this._delegatedListeners[e]&&(o=>{const a=this._delegatedListeners[e];for(let e=0;e{t?this.fire(new e.ErrorEvent(t)):o&&this._updateDiff(o,i);});}else "object"==typeof t&&this._updateDiff(t,i);}_updateDiff(t,i){try{this.style.setState(t)&&(this._update(!0),this._updateTerrain());}catch(o){e.warnOnce(`Unable to perform style diff: ${o.message||o.error||o}. Rebuilding the style from scratch.`),this._updateStyle(t,i);}}getStyle(){if(this.style)return this.style.serialize()}isStyleLoaded(){return this.style?this.style.loaded():e.warnOnce("There is no style added to the map.")}addSource(e,t){return this._lazyInitEmptyStyle(),this.style.addSource(e,t),this._update(!0)}isSourceLoaded(t){const i=this.style&&this.style._getSourceCaches(t);if(0!==i.length)return i.every(e=>e.loaded());this.fire(new e.ErrorEvent(new Error(`There is no source with ID '${t}'`)));}areTilesLoaded(){const e=this.style&&this.style._sourceCaches;for(const t in e){const i=e[t]._tiles;for(const e in i){const t=i[e];if("loaded"!==t.state&&"errored"!==t.state)return !1}}return !0}addSourceType(e,t,i){return this._lazyInitEmptyStyle(),this.style.addSourceType(e,t,i)}removeSource(e){return this.style.removeSource(e),this._updateTerrain(),this._update(!0)}getSource(e){return this.style.getSource(e)}addImage(t,i,{pixelRatio:o=1,sdf:a=!1,stretchX:r,stretchY:n,content:s}={}){if(this._lazyInitEmptyStyle(),i instanceof oa||ra&&i instanceof ra){const{width:l,height:c,data:h}=e.browser.getImageData(i);this.style.addImage(t,{data:new e.RGBAImage({width:l,height:c},h),pixelRatio:o,stretchX:r,stretchY:n,content:s,sdf:a,version:0});}else {if(void 0===i.width||void 0===i.height)return this.fire(new e.ErrorEvent(new Error("Invalid arguments to map.addImage(). The second argument must be an `HTMLImageElement`, `ImageData`, `ImageBitmap`, or object with `width`, `height`, and `data` properties with the same format as `ImageData`")));{const{width:l,height:c,data:h}=i,u=i;this.style.addImage(t,{data:new e.RGBAImage({width:l,height:c},new Uint8Array(h)),pixelRatio:o,stretchX:r,stretchY:n,content:s,sdf:a,version:0,userImage:u}),u.onAdd&&u.onAdd(this,t);}}}updateImage(t,i){const o=this.style.getImage(t);if(!o)return this.fire(new e.ErrorEvent(new Error("The map has no image with that id. If you are adding a new image use `map.addImage(...)` instead.")));const a=i instanceof oa||ra&&i instanceof ra?e.browser.getImageData(i):i,{width:r,height:n,data:s}=a;return void 0===r||void 0===n?this.fire(new e.ErrorEvent(new Error("Invalid arguments to map.updateImage(). The second argument must be an `HTMLImageElement`, `ImageData`, `ImageBitmap`, or object with `width`, `height`, and `data` properties with the same format as `ImageData`"))):r!==o.data.width||n!==o.data.height?this.fire(new e.ErrorEvent(new Error("The width and height of the updated image must be that same as the previous version of the image"))):(o.data.replace(s,!(i instanceof oa||ra&&i instanceof ra)),void this.style.updateImage(t,o))}hasImage(t){return t?!!this.style.getImage(t):(this.fire(new e.ErrorEvent(new Error("Missing required image id"))),!1)}removeImage(e){this.style.removeImage(e);}loadImage(t,i){e.getImage(this._requestManager.transformRequest(t,e.ResourceType.Image),i);}listImages(){return this.style.listImages()}addLayer(e,t){return this._lazyInitEmptyStyle(),this.style.addLayer(e,t),this._update(!0)}moveLayer(e,t){return this.style.moveLayer(e,t),this._update(!0)}removeLayer(e){return this.style.removeLayer(e),this._update(!0)}getLayer(e){return this.style.getLayer(e)}setLayerZoomRange(e,t,i){return this.style.setLayerZoomRange(e,t,i),this._update(!0)}setFilter(e,t,i={}){return this.style.setFilter(e,t,i),this._update(!0)}getFilter(e){return this.style.getFilter(e)}setPaintProperty(e,t,i,o={}){return this.style.setPaintProperty(e,t,i,o),this._update(!0)}getPaintProperty(e,t){return this.style.getPaintProperty(e,t)}setLayoutProperty(e,t,i,o={}){return this.style.setLayoutProperty(e,t,i,o),this._update(!0)}getLayoutProperty(e,t){return this.style.getLayoutProperty(e,t)}setLight(e,t={}){return this._lazyInitEmptyStyle(),this.style.setLight(e,t),this._update(!0)}getLight(){return this.style.getLight()}setTerrain(e){return this._lazyInitEmptyStyle(),this.style.setTerrain(e),this._update(!0)}setFeatureState(e,t){return this.style.setFeatureState(e,t),this._update()}removeFeatureState(e,t){return this.style.removeFeatureState(e,t),this._update()}getFeatureState(e){return this.style.getFeatureState(e)}getContainer(){return this._container}getCanvasContainer(){return this._canvasContainer}getCanvas(){return this._canvas}_containerDimensions(){let e=0,t=0;return this._container&&(e=this._container.clientWidth||400,t=this._container.clientHeight||300),[e,t]}_detectMissingCSS(){"rgb(250, 128, 114)"!==e.window.getComputedStyle(this._missingCSSCanary).getPropertyValue("background-color")&&e.warnOnce("This page appears to be missing CSS declarations for Mapbox GL JS, which may cause the map to display incorrectly. Please ensure your page includes mapbox-gl.css, as described in https://www.mapbox.com/mapbox-gl-js/api/.");}_setupContainer(){const e=this._container;e.classList.add("mapboxgl-map"),(this._missingCSSCanary=i.create("div","mapboxgl-canary",e)).style.visibility="hidden",this._detectMissingCSS();const t=this._canvasContainer=i.create("div","mapboxgl-canvas-container",e);this._interactive&&t.classList.add("mapboxgl-interactive"),this._canvas=i.create("canvas","mapboxgl-canvas",t),this._canvas.addEventListener("webglcontextlost",this._contextLost,!1),this._canvas.addEventListener("webglcontextrestored",this._contextRestored,!1),this._canvas.setAttribute("tabindex","0"),this._canvas.setAttribute("aria-label","Map"),this._canvas.setAttribute("role","region");const o=this._containerDimensions();this._resizeCanvas(o[0],o[1]);const a=this._controlContainer=i.create("div","mapboxgl-control-container",e),r=this._controlPositions={};["top-left","top-right","bottom-left","bottom-right"].forEach(e=>{r[e]=i.create("div",`mapboxgl-ctrl-${e}`,a);}),this._container.addEventListener("scroll",this._onMapScroll,!1);}_resizeCanvas(t,i){const o=e.browser.devicePixelRatio||1;this._canvas.width=o*t,this._canvas.height=o*i,this._canvas.style.width=`${t}px`,this._canvas.style.height=`${i}px`;}_setupPainter(){const i=e.extend({},t.webGLContextAttributes,{failIfMajorPerformanceCaveat:this._failIfMajorPerformanceCaveat,preserveDrawingBuffer:this._preserveDrawingBuffer,antialias:this._antialias||!1}),o=this._canvas.getContext("webgl",i)||this._canvas.getContext("experimental-webgl",i);o?(this.painter=new ji(o,this.transform),this.on("data",e=>{"source"===e.dataType&&this.painter.setTileLoadedFlag(!0);}),e.webpSupported.testSupport(o)):this.fire(new e.ErrorEvent(new Error("Failed to initialize WebGL")));}_contextLost(t){t.preventDefault(),this._frame&&(this._frame.cancel(),this._frame=null),this.fire(new e.Event("webglcontextlost",{originalEvent:t}));}_contextRestored(t){this._setupPainter(),this.resize(),this._update(),this.fire(new e.Event("webglcontextrestored",{originalEvent:t}));}_onMapScroll(e){if(e.target===this._container)return this._container.scrollTop=0,this._container.scrollLeft=0,!1}loaded(){return !this._styleDirty&&!this._sourcesDirty&&!!this.style&&this.style.loaded()}_update(e){return this.style?(this._styleDirty=this._styleDirty||e,this._sourcesDirty=!0,this.triggerRepaint(),this):this}_requestRenderFrame(e){return this._update(),this._renderTaskQueue.add(e)}_cancelRenderFrame(e){this._renderTaskQueue.remove(e);}_render(t){let i,o=0;const a=this.painter.context.extTimerQuery;if(this.listens("gpu-timing-frame")&&(i=a.createQueryEXT(),a.beginQueryEXT(a.TIME_ELAPSED_EXT,i),o=e.browser.now()),this.painter.context.setDirty(),this.painter.setBaseState(),this._renderTaskQueue.run(t),this._removed)return;let r=!1;const n=this._isInitialLoad?0:this._fadeDuration;if(this.style&&this._styleDirty){this._styleDirty=!1;const t=this.transform.zoom,i=e.browser.now();this.style.zoomHistory.update(t,i);const o=new e.EvaluationParameters(t,{now:i,fadeDuration:n,zoomHistory:this.style.zoomHistory,transition:this.style.getTransition()}),a=o.crossFadingFactor();1===a&&a===this._crossFadingFactor||(r=!0,this._crossFadingFactor=a),this.style.update(o);}if(this.style&&this._sourcesDirty&&(this._sourcesDirty=!1,this._updateTerrain(),this.style._updateSources(this.transform)),this._placementDirty=this.style&&this.style._updatePlacement(this.painter.transform,this.showCollisionBoxes,n,this._crossSourceCollisions),this.painter.render(this.style,{showTileBoundaries:this.showTileBoundaries,showOverdrawInspector:this._showOverdrawInspector,showQueryGeometry:!!this._showQueryGeometry,rotating:this.isRotating(),zooming:this.isZooming(),moving:this.isMoving(),fadeDuration:n,isInitialLoad:this._isInitialLoad,showPadding:this.showPadding,gpuTiming:!!this.listens("gpu-timing-layer"),speedIndexTiming:this.speedIndexTiming}),this.fire(new e.Event("render")),this.loaded()&&!this._loaded&&(this._loaded=!0,this.fire(new e.Event("load"))),this.style&&(this.style.hasTransitions()||r)&&(this._styleDirty=!0),this.style&&!this._placementDirty&&this.style._releaseSymbolFadeTiles(),this.listens("gpu-timing-frame")){const t=e.browser.now()-o;a.endQueryEXT(a.TIME_ELAPSED_EXT,i),setTimeout(()=>{const o=a.getQueryObjectEXT(i,a.QUERY_RESULT_EXT)/1e6;a.deleteQueryEXT(i),this.fire(new e.Event("gpu-timing-frame",{cpuTime:t,gpuTime:o}));},50);}if(this.listens("gpu-timing-layer")){const t=this.painter.collectGpuTimers();setTimeout(()=>{const i=this.painter.queryGpuTimers(t);this.fire(new e.Event("gpu-timing-layer",{layerTimes:i}));},50);}const s=this._sourcesDirty||this._styleDirty||this._placementDirty;if(s||this._repaint)this.triggerRepaint();else if(this._triggerFrame(!1),!this.isMoving()&&this.loaded()&&(this.fire(new e.Event("idle")),this._isInitialLoad&&this._authenticate(),this._isInitialLoad=!1,this.speedIndexTiming)){const t=this._calculateSpeedIndex();this.fire(new e.Event("speedindexcompleted",{speedIndex:t})),this.speedIndexTiming=!1;}return !this._loaded||this._fullyLoaded||s||(this._fullyLoaded=!0),this}_authenticate(){e.getMapSessionAPI(this._getMapId(),this._requestManager._skuToken,this._requestManager._customAccessToken,t=>{if(t&&(t.message===e.AUTH_ERR_MSG||401===t.status)){console.error("Error: A valid Mapbox access token is required to use Mapbox GL JS. To create an account or a new access token, visit https://account.mapbox.com/"),e.browser.setErrorState();const t=this.painter.context.gl;this._logoControl instanceof ea&&this._logoControl._updateLogo(),t&&t.clear(t.DEPTH_BUFFER_BIT|t.COLOR_BUFFER_BIT|t.STENCIL_BUFFER_BIT);}}),e.postMapLoadEvent(this._getMapId(),this._requestManager._skuToken,this._requestManager._customAccessToken,()=>{});}_updateTerrain(){this.painter.updateTerrain(this.style,this.isMoving()||this.isRotating()||this.isZooming());}_calculateSpeedIndex(){const e=this.painter.canvasCopy(),t=this.painter.getCanvasCopiesAndTimestamps();t.timeStamps.push(performance.now());const i=this.painter.context.gl,o=i.createFramebuffer();function a(e){i.framebufferTexture2D(i.FRAMEBUFFER,i.COLOR_ATTACHMENT0,i.TEXTURE_2D,e,0);const t=new Uint8Array(i.drawingBufferWidth*i.drawingBufferHeight*4);return i.readPixels(0,0,i.drawingBufferWidth,i.drawingBufferHeight,i.RGBA,i.UNSIGNED_BYTE,t),t}return i.bindFramebuffer(i.FRAMEBUFFER,o),this._canvasPixelComparison(a(e),t.canvasCopies.map(a),t.timeStamps)}_canvasPixelComparison(e,t,i){let o=i[1]-i[0];const a=e.length/4;for(let r=0;r{const t=!!this._renderNextFrame;this._frame=null,this._renderNextFrame=null,t&&this._render(e);}));}_onWindowOnline(){this._update();}_onWindowResize(e){this._trackResize&&this.resize({originalEvent:e})._update();}get showTileBoundaries(){return !!this._showTileBoundaries}set showTileBoundaries(e){this._showTileBoundaries!==e&&(this._showTileBoundaries=e,this._update());}get speedIndexTiming(){return !!this._speedIndexTiming}set speedIndexTiming(e){this._speedIndexTiming!==e&&(this._speedIndexTiming=e,this._update());}get showPadding(){return !!this._showPadding}set showPadding(e){this._showPadding!==e&&(this._showPadding=e,this._update());}get showCollisionBoxes(){return !!this._showCollisionBoxes}set showCollisionBoxes(e){this._showCollisionBoxes!==e&&(this._showCollisionBoxes=e,e?this.style._generateCollisionBoxes():this._update());}get showOverdrawInspector(){return !!this._showOverdrawInspector}set showOverdrawInspector(e){this._showOverdrawInspector!==e&&(this._showOverdrawInspector=e,this._update());}get repaint(){return !!this._repaint}set repaint(e){this._repaint!==e&&(this._repaint=e,this.triggerRepaint());}get vertices(){return !!this._vertices}set vertices(e){this._vertices=e,this._update();}_setCacheLimits(t,i){e.setCacheLimits(t,i);}get version(){return e.version}},NavigationControl:class{constructor(t){this.options=e.extend({},la,t),this._container=i.create("div","mapboxgl-ctrl mapboxgl-ctrl-group"),this._container.addEventListener("contextmenu",e=>e.preventDefault()),this.options.showZoom&&(e.bindAll(["_setButtonTitle","_updateZoomButtons"],this),this._zoomInButton=this._createButton("mapboxgl-ctrl-zoom-in",e=>this._map.zoomIn({},{originalEvent:e})),i.create("span","mapboxgl-ctrl-icon",this._zoomInButton).setAttribute("aria-hidden",!0),this._zoomOutButton=this._createButton("mapboxgl-ctrl-zoom-out",e=>this._map.zoomOut({},{originalEvent:e})),i.create("span","mapboxgl-ctrl-icon",this._zoomOutButton).setAttribute("aria-hidden",!0)),this.options.showCompass&&(e.bindAll(["_rotateCompassArrow"],this),this._compass=this._createButton("mapboxgl-ctrl-compass",e=>{this.options.visualizePitch?this._map.resetNorthPitch({},{originalEvent:e}):this._map.resetNorth({},{originalEvent:e});}),this._compassIcon=i.create("span","mapboxgl-ctrl-icon",this._compass),this._compassIcon.setAttribute("aria-hidden",!0));}_updateZoomButtons(){const e=this._map.getZoom(),t=e===this._map.getMaxZoom(),i=e===this._map.getMinZoom();this._zoomInButton.disabled=t,this._zoomOutButton.disabled=i,this._zoomInButton.setAttribute("aria-disabled",t.toString()),this._zoomOutButton.setAttribute("aria-disabled",i.toString());}_rotateCompassArrow(){const e=this.options.visualizePitch?`scale(${1/Math.pow(Math.cos(this._map.transform.pitch*(Math.PI/180)),.5)}) rotateX(${this._map.transform.pitch}deg) rotateZ(${this._map.transform.angle*(180/Math.PI)}deg)`:`rotate(${this._map.transform.angle*(180/Math.PI)}deg)`;this._compassIcon.style.transform=e;}onAdd(e){return this._map=e,this.options.showZoom&&(this._setButtonTitle(this._zoomInButton,"ZoomIn"),this._setButtonTitle(this._zoomOutButton,"ZoomOut"),this._map.on("zoom",this._updateZoomButtons),this._updateZoomButtons()),this.options.showCompass&&(this._setButtonTitle(this._compass,"ResetBearing"),this.options.visualizePitch&&this._map.on("pitch",this._rotateCompassArrow),this._map.on("rotate",this._rotateCompassArrow),this._rotateCompassArrow(),this._handler=new ca(this._map,this._compass,this.options.visualizePitch)),this._container}onRemove(){i.remove(this._container),this.options.showZoom&&this._map.off("zoom",this._updateZoomButtons),this.options.showCompass&&(this.options.visualizePitch&&this._map.off("pitch",this._rotateCompassArrow),this._map.off("rotate",this._rotateCompassArrow),this._handler.off(),delete this._handler),delete this._map;}_createButton(e,t){const o=i.create("button",e,this._container);return o.type="button",o.addEventListener("click",t),o}_setButtonTitle(e,t){const i=this._map._getUIString(`NavigationControl.${t}`);e.title=i,e.setAttribute("aria-label",i);}},GeolocateControl:class extends e.Evented{constructor(t){super(),this.options=e.extend({},ma,t),e.bindAll(["_onSuccess","_onError","_onZoom","_finish","_setupUI","_updateCamera","_updateMarker"],this);}onAdd(t){var o;return this._map=t,this._container=i.create("div","mapboxgl-ctrl mapboxgl-ctrl-group"),o=this._setupUI,void 0!==pa?o(pa):void 0!==e.window.navigator.permissions?e.window.navigator.permissions.query({name:"geolocation"}).then(e=>{pa="denied"!==e.state,o(pa);}):(pa=!!e.window.navigator.geolocation,o(pa)),this._container}onRemove(){void 0!==this._geolocationWatchID&&(e.window.navigator.geolocation.clearWatch(this._geolocationWatchID),this._geolocationWatchID=void 0),this.options.showUserLocation&&this._userLocationDotMarker&&this._userLocationDotMarker.remove(),this.options.showAccuracyCircle&&this._accuracyCircleMarker&&this._accuracyCircleMarker.remove(),i.remove(this._container),this._map.off("zoom",this._onZoom),this._map=void 0,fa=0,ga=!1;}_isOutOfMapMaxBounds(e){const t=this._map.getMaxBounds(),i=e.coords;return t&&(i.longitudet.getEast()||i.latitudet.getNorth())}_setErrorState(){switch(this._watchState){case"WAITING_ACTIVE":this._watchState="ACTIVE_ERROR",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active-error");break;case"ACTIVE_LOCK":this._watchState="ACTIVE_ERROR",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active-error"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting");break;case"BACKGROUND":this._watchState="BACKGROUND_ERROR",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background-error"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting");}}_onSuccess(t){if(this._map){if(this._isOutOfMapMaxBounds(t))return this._setErrorState(),this.fire(new e.Event("outofmaxbounds",t)),this._updateMarker(),void this._finish();if(this.options.trackUserLocation)switch(this._lastKnownPosition=t,this._watchState){case"WAITING_ACTIVE":case"ACTIVE_LOCK":case"ACTIVE_ERROR":this._watchState="ACTIVE_LOCK",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active-error"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active");break;case"BACKGROUND":case"BACKGROUND_ERROR":this._watchState="BACKGROUND",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background-error"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background");}this.options.showUserLocation&&"OFF"!==this._watchState&&this._updateMarker(t),this.options.trackUserLocation&&"ACTIVE_LOCK"!==this._watchState||this._updateCamera(t),this.options.showUserLocation&&this._dotElement.classList.remove("mapboxgl-user-location-dot-stale"),this.fire(new e.Event("geolocate",t)),this._finish();}}_updateCamera(t){const i=new e.LngLat(t.coords.longitude,t.coords.latitude),o=t.coords.accuracy,a=this._map.getBearing(),r=e.extend({bearing:a},this.options.fitBoundsOptions);this._map.fitBounds(i.toBounds(o),r,{geolocateSource:!0});}_updateMarker(t){if(t){const i=new e.LngLat(t.coords.longitude,t.coords.latitude);this._accuracyCircleMarker.setLngLat(i).addTo(this._map),this._userLocationDotMarker.setLngLat(i).addTo(this._map),this._accuracy=t.coords.accuracy,this.options.showUserLocation&&this.options.showAccuracyCircle&&this._updateCircleRadius();}else this._userLocationDotMarker.remove(),this._accuracyCircleMarker.remove();}_updateCircleRadius(){const e=this._map._container.clientHeight/2,t=this._map.unproject([0,e]),i=this._map.unproject([1,e]),o=t.distanceTo(i),a=Math.ceil(2*this._accuracy/o);this._circleElement.style.width=`${a}px`,this._circleElement.style.height=`${a}px`;}_onZoom(){this.options.showUserLocation&&this.options.showAccuracyCircle&&this._updateCircleRadius();}_onError(t){if(this._map){if(this.options.trackUserLocation)if(1===t.code){this._watchState="OFF",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active-error"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background-error"),this._geolocateButton.disabled=!0;const e=this._map._getUIString("GeolocateControl.LocationNotAvailable");this._geolocateButton.title=e,this._geolocateButton.setAttribute("aria-label",e),void 0!==this._geolocationWatchID&&this._clearWatch();}else {if(3===t.code&&ga)return;this._setErrorState();}"OFF"!==this._watchState&&this.options.showUserLocation&&this._dotElement.classList.add("mapboxgl-user-location-dot-stale"),this.fire(new e.Event("error",t)),this._finish();}}_finish(){this._timeoutId&&clearTimeout(this._timeoutId),this._timeoutId=void 0;}_setupUI(t){if(this._container.addEventListener("contextmenu",e=>e.preventDefault()),this._geolocateButton=i.create("button","mapboxgl-ctrl-geolocate",this._container),i.create("span","mapboxgl-ctrl-icon",this._geolocateButton).setAttribute("aria-hidden",!0),this._geolocateButton.type="button",!1===t){e.warnOnce("Geolocation support is not available so the GeolocateControl will be disabled.");const t=this._map._getUIString("GeolocateControl.LocationNotAvailable");this._geolocateButton.disabled=!0,this._geolocateButton.title=t,this._geolocateButton.setAttribute("aria-label",t);}else {const e=this._map._getUIString("GeolocateControl.FindMyLocation");this._geolocateButton.title=e,this._geolocateButton.setAttribute("aria-label",e);}this.options.trackUserLocation&&(this._geolocateButton.setAttribute("aria-pressed","false"),this._watchState="OFF"),this.options.showUserLocation&&(this._dotElement=i.create("div","mapboxgl-user-location-dot"),this._userLocationDotMarker=new _a(this._dotElement),this._circleElement=i.create("div","mapboxgl-user-location-accuracy-circle"),this._accuracyCircleMarker=new _a({element:this._circleElement,pitchAlignment:"map"}),this.options.trackUserLocation&&(this._watchState="OFF"),this._map.on("zoom",this._onZoom)),this._geolocateButton.addEventListener("click",this.trigger.bind(this)),this._setup=!0,this.options.trackUserLocation&&this._map.on("movestart",t=>{t.geolocateSource||"ACTIVE_LOCK"!==this._watchState||t.originalEvent&&"resize"===t.originalEvent.type||(this._watchState="BACKGROUND",this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),this.fire(new e.Event("trackuserlocationend")));});}trigger(){if(!this._setup)return e.warnOnce("Geolocate control triggered before added to a map"),!1;if(this.options.trackUserLocation){switch(this._watchState){case"OFF":this._watchState="WAITING_ACTIVE",this.fire(new e.Event("trackuserlocationstart"));break;case"WAITING_ACTIVE":case"ACTIVE_LOCK":case"ACTIVE_ERROR":case"BACKGROUND_ERROR":fa--,ga=!1,this._watchState="OFF",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-active-error"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background"),this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background-error"),this.fire(new e.Event("trackuserlocationend"));break;case"BACKGROUND":this._watchState="ACTIVE_LOCK",this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-background"),this._lastKnownPosition&&this._updateCamera(this._lastKnownPosition),this.fire(new e.Event("trackuserlocationstart"));}switch(this._watchState){case"WAITING_ACTIVE":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active");break;case"ACTIVE_LOCK":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active");break;case"ACTIVE_ERROR":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-active-error");break;case"BACKGROUND":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background");break;case"BACKGROUND_ERROR":this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-background-error");}if("OFF"===this._watchState&&void 0!==this._geolocationWatchID)this._clearWatch();else if(void 0===this._geolocationWatchID){let t;this._geolocateButton.classList.add("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.setAttribute("aria-pressed","true"),fa++,fa>1?(t={maximumAge:6e5,timeout:0},ga=!0):(t=this.options.positionOptions,ga=!1),this._geolocationWatchID=e.window.navigator.geolocation.watchPosition(this._onSuccess,this._onError,t);}}else e.window.navigator.geolocation.getCurrentPosition(this._onSuccess,this._onError,this.options.positionOptions),this._timeoutId=setTimeout(this._finish,1e4);return !0}_clearWatch(){e.window.navigator.geolocation.clearWatch(this._geolocationWatchID),this._geolocationWatchID=void 0,this._geolocateButton.classList.remove("mapboxgl-ctrl-geolocate-waiting"),this._geolocateButton.setAttribute("aria-pressed","false"),this.options.showUserLocation&&this._updateMarker(null);}},AttributionControl:Qo,ScaleControl:class{constructor(t){this.options=e.extend({},va,t),e.bindAll(["_onMove","setUnit"],this);}getDefaultPosition(){return "bottom-left"}_onMove(){xa(this._map,this._container,this.options);}onAdd(e){return this._map=e,this._container=i.create("div","mapboxgl-ctrl mapboxgl-ctrl-scale",e.getContainer()),this._map.on("move",this._onMove),this._onMove(),this._container}onRemove(){i.remove(this._container),this._map.off("move",this._onMove),this._map=void 0;}setUnit(e){this.options.unit=e,xa(this._map,this._container,this.options);}},FullscreenControl:class{constructor(t){this._fullscreen=!1,t&&t.container&&(t.container instanceof e.window.HTMLElement?this._container=t.container:e.warnOnce("Full screen control 'container' must be a DOM element.")),e.bindAll(["_onClickFullscreen","_changeIcon"],this),"onfullscreenchange"in e.window.document?this._fullscreenchange="fullscreenchange":"onmozfullscreenchange"in e.window.document?this._fullscreenchange="mozfullscreenchange":"onwebkitfullscreenchange"in e.window.document?this._fullscreenchange="webkitfullscreenchange":"onmsfullscreenchange"in e.window.document&&(this._fullscreenchange="MSFullscreenChange");}onAdd(t){return this._map=t,this._container||(this._container=this._map.getContainer()),this._controlContainer=i.create("div","mapboxgl-ctrl mapboxgl-ctrl-group"),this._checkFullscreenSupport()?this._setupUI():(this._controlContainer.style.display="none",e.warnOnce("This device does not support fullscreen mode.")),this._controlContainer}onRemove(){i.remove(this._controlContainer),this._map=null,e.window.document.removeEventListener(this._fullscreenchange,this._changeIcon);}_checkFullscreenSupport(){return !!(e.window.document.fullscreenEnabled||e.window.document.mozFullScreenEnabled||e.window.document.msFullscreenEnabled||e.window.document.webkitFullscreenEnabled)}_setupUI(){const t=this._fullscreenButton=i.create("button","mapboxgl-ctrl-fullscreen",this._controlContainer);i.create("span","mapboxgl-ctrl-icon",t).setAttribute("aria-hidden",!0),t.type="button",this._updateTitle(),this._fullscreenButton.addEventListener("click",this._onClickFullscreen),e.window.document.addEventListener(this._fullscreenchange,this._changeIcon);}_updateTitle(){const e=this._getTitle();this._fullscreenButton.setAttribute("aria-label",e),this._fullscreenButton.title=e;}_getTitle(){return this._map._getUIString(this._isFullscreen()?"FullscreenControl.Exit":"FullscreenControl.Enter")}_isFullscreen(){return this._fullscreen}_changeIcon(){(e.window.document.fullscreenElement||e.window.document.mozFullScreenElement||e.window.document.webkitFullscreenElement||e.window.document.msFullscreenElement)===this._container!==this._fullscreen&&(this._fullscreen=!this._fullscreen,this._fullscreenButton.classList.toggle("mapboxgl-ctrl-shrink"),this._fullscreenButton.classList.toggle("mapboxgl-ctrl-fullscreen"),this._updateTitle());}_onClickFullscreen(){this._isFullscreen()?e.window.document.exitFullscreen?e.window.document.exitFullscreen():e.window.document.mozCancelFullScreen?e.window.document.mozCancelFullScreen():e.window.document.msExitFullscreen?e.window.document.msExitFullscreen():e.window.document.webkitCancelFullScreen&&e.window.document.webkitCancelFullScreen():this._container.requestFullscreen?this._container.requestFullscreen():this._container.mozRequestFullScreen?this._container.mozRequestFullScreen():this._container.msRequestFullscreen?this._container.msRequestFullscreen():this._container.webkitRequestFullscreen&&this._container.webkitRequestFullscreen();}},Popup:class extends e.Evented{constructor(t){super(),this.options=e.extend(Object.create(ba),t),e.bindAll(["_update","_onClose","remove","_onMouseMove","_onMouseUp","_onDrag"],this);}addTo(t){return this._map&&this.remove(),this._map=t,this.options.closeOnClick&&this._map.on("click",this._onClose),this.options.closeOnMove&&this._map.on("move",this._onClose),this._map.on("remove",this.remove),this._update(),this._focusFirstElement(),this._trackPointer?(this._map.on("mousemove",this._onMouseMove),this._map.on("mouseup",this._onMouseUp),this._container&&this._container.classList.add("mapboxgl-popup-track-pointer"),this._map._canvasContainer.classList.add("mapboxgl-track-pointer")):this._map.on("move",this._update),this.fire(new e.Event("open")),this}isOpen(){return !!this._map}remove(){return this._content&&i.remove(this._content),this._container&&(i.remove(this._container),delete this._container),this._map&&(this._map.off("move",this._update),this._map.off("move",this._onClose),this._map.off("click",this._onClose),this._map.off("remove",this.remove),this._map.off("mousemove",this._onMouseMove),this._map.off("mouseup",this._onMouseUp),this._map.off("drag",this._onDrag),delete this._map),this.fire(new e.Event("close")),this}getLngLat(){return this._lngLat}setLngLat(t){return this._lngLat=e.LngLat.convert(t),this._pos=null,this._trackPointer=!1,this._update(),this._map&&(this._map.on("move",this._update),this._map.off("mousemove",this._onMouseMove),this._container&&this._container.classList.remove("mapboxgl-popup-track-pointer"),this._map._canvasContainer.classList.remove("mapboxgl-track-pointer")),this}trackPointer(){return this._trackPointer=!0,this._pos=null,this._update(),this._map&&(this._map.off("move",this._update),this._map.on("mousemove",this._onMouseMove),this._map.on("drag",this._onDrag),this._container&&this._container.classList.add("mapboxgl-popup-track-pointer"),this._map._canvasContainer.classList.add("mapboxgl-track-pointer")),this}getElement(){return this._container}setText(t){return this.setDOMContent(e.window.document.createTextNode(t))}setHTML(t){const i=e.window.document.createDocumentFragment(),o=e.window.document.createElement("body");let a;for(o.innerHTML=t;a=o.firstChild,a;)i.appendChild(a);return this.setDOMContent(i)}getMaxWidth(){return this._container&&this._container.style.maxWidth}setMaxWidth(e){return this.options.maxWidth=e,this._update(),this}setDOMContent(e){if(this._content)for(;this._content.hasChildNodes();)this._content.firstChild&&this._content.removeChild(this._content.firstChild);else this._content=i.create("div","mapboxgl-popup-content",this._container);return this._content.appendChild(e),this._createCloseButton(),this._update(),this._focusFirstElement(),this}addClassName(e){this._container&&this._container.classList.add(e);}removeClassName(e){this._container&&this._container.classList.remove(e);}setOffset(e){return this.options.offset=e,this._update(),this}toggleClassName(e){if(this._container)return this._container.classList.toggle(e)}_createCloseButton(){this.options.closeButton&&(this._closeButton=i.create("button","mapboxgl-popup-close-button",this._content),this._closeButton.type="button",this._closeButton.setAttribute("aria-label","Close popup"),this._closeButton.innerHTML="×",this._closeButton.addEventListener("click",this._onClose));}_onMouseUp(e){this._update(e.point);}_onMouseMove(e){this._update(e.point);}_onDrag(e){this._update(e.point);}_update(t){if(!this._map||!this._lngLat&&!this._trackPointer||!this._content)return;if(this._container||(this._container=i.create("div","mapboxgl-popup",this._map.getContainer()),this._tip=i.create("div","mapboxgl-popup-tip",this._container),this._container.appendChild(this._content),this.options.className&&this.options.className.split(" ").forEach(e=>this._container.classList.add(e)),this._trackPointer&&this._container.classList.add("mapboxgl-popup-track-pointer")),this.options.maxWidth&&this._container.style.maxWidth!==this.options.maxWidth&&(this._container.style.maxWidth=this.options.maxWidth),this._map.transform.renderWorldCopies&&!this._trackPointer&&(this._lngLat=ha(this._lngLat,this._pos,this._map.transform)),this._trackPointer&&!t)return;const o=this._pos=this._trackPointer&&t?t:this._map.project(this._lngLat);let a=this.options.anchor;const r=function t(i){if(i){if("number"==typeof i){const t=Math.round(Math.sqrt(.5*Math.pow(i,2)));return {center:new e.Point(0,0),top:new e.Point(0,i),"top-left":new e.Point(t,t),"top-right":new e.Point(-t,t),bottom:new e.Point(0,-i),"bottom-left":new e.Point(t,-t),"bottom-right":new e.Point(-t,-t),left:new e.Point(i,0),right:new e.Point(-i,0)}}if(i instanceof e.Point||Array.isArray(i)){const t=e.Point.convert(i);return {center:t,top:t,"top-left":t,"top-right":t,bottom:t,"bottom-left":t,"bottom-right":t,left:t,right:t}}return {center:e.Point.convert(i.center||[0,0]),top:e.Point.convert(i.top||[0,0]),"top-left":e.Point.convert(i["top-left"]||[0,0]),"top-right":e.Point.convert(i["top-right"]||[0,0]),bottom:e.Point.convert(i.bottom||[0,0]),"bottom-left":e.Point.convert(i["bottom-left"]||[0,0]),"bottom-right":e.Point.convert(i["bottom-right"]||[0,0]),left:e.Point.convert(i.left||[0,0]),right:e.Point.convert(i.right||[0,0])}}return t(new e.Point(0,0))}(this.options.offset);if(!a){const e=this._container.offsetWidth,t=this._container.offsetHeight;let i;i=o.y+r.bottom.ythis._map.transform.height-t?["bottom"]:[],o.xthis._map.transform.width-e/2&&i.push("right"),a=0===i.length?"bottom":i.join("-");}const n=o.add(r[a]).round();i.setTransform(this._container,`${ua[a]} translate(${n.x}px,${n.y}px)`),da(this._container,a,"popup");}_focusFirstElement(){if(!this.options.focusAfterOpen||!this._container)return;const e=this._container.querySelector(wa);e&&e.focus();}_onClose(){this.remove();}},Marker:_a,Style:We,LngLat:e.LngLat,LngLatBounds:e.LngLatBounds,Point:e.Point,MercatorCoordinate:e.MercatorCoordinate,FreeCameraOptions:eo,Evented:e.Evented,config:e.config,prewarm:function(){q().acquire(N);},clearPrewarmedResources:function(){const e=G;e&&(e.isPreloaded()&&1===e.numActive()?(e.release(N),G=null):console.warn("Could not clear WebWorkers since there are active Map instances that still reference it. The pre-warmed WebWorker pool can only be cleared when all map instances have been removed with map.remove()"));},get accessToken(){return e.config.ACCESS_TOKEN},set accessToken(t){e.config.ACCESS_TOKEN=t;},get baseApiUrl(){return e.config.API_URL},set baseApiUrl(t){e.config.API_URL=t;},get workerCount(){return Z.workerCount},set workerCount(e){Z.workerCount=e;},get maxParallelImageRequests(){return e.config.MAX_PARALLEL_IMAGE_REQUESTS},set maxParallelImageRequests(t){e.config.MAX_PARALLEL_IMAGE_REQUESTS=t;},clearStorage(t){e.clearTileCache(t);},workerUrl:""};return Ta})); + +// + +return mapboxgl; + +}))); +//# sourceMappingURL=mapbox-gl.js.map diff --git a/public/mapbox/mapbox-gl-unminified.js b/public/mapbox/mapbox-gl-unminified.js new file mode 100644 index 0000000..887b9c7 --- /dev/null +++ b/public/mapbox/mapbox-gl-unminified.js @@ -0,0 +1,45619 @@ +/* Mapbox GL JS is Copyright © 2020 Mapbox and subject to the Mapbox Terms of Service ((https://www.mapbox.com/legal/tos/). */ +(function (global, factory) { +typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : +typeof define === 'function' && define.amd ? define(factory) : +(global = global || self, global.mapboxgl = factory()); +}(this, (function () { 'use strict'; + +/* eslint-disable */ + +var shared, worker, mapboxgl; +// define gets called three times: one for each chunk. we rely on the order +// they're imported to know which is which +function define(_, chunk) { +if (!shared) { + shared = chunk; +} else if (!worker) { + worker = chunk; +} else { + var workerBundleString = 'var sharedChunk = {}; (' + shared + ')(sharedChunk); (' + worker + ')(sharedChunk);' + + var sharedChunk = {}; + shared(sharedChunk); + mapboxgl = chunk(sharedChunk); + if (typeof window !== 'undefined') { + mapboxgl.workerUrl = window.URL.createObjectURL(new Blob([workerBundleString], { type: 'text/javascript' })); + } +} +} + + +define(['exports'], function (exports) { 'use strict'; + +var version = "2.1.0-dev"; + +var unitbezier = UnitBezier; +function UnitBezier(p1x, p1y, p2x, p2y) { + this.cx = 3 * p1x; + this.bx = 3 * (p2x - p1x) - this.cx; + this.ax = 1 - this.cx - this.bx; + this.cy = 3 * p1y; + this.by = 3 * (p2y - p1y) - this.cy; + this.ay = 1 - this.cy - this.by; + this.p1x = p1x; + this.p1y = p2y; + this.p2x = p2x; + this.p2y = p2y; +} +UnitBezier.prototype.sampleCurveX = function (t) { + return ((this.ax * t + this.bx) * t + this.cx) * t; +}; +UnitBezier.prototype.sampleCurveY = function (t) { + return ((this.ay * t + this.by) * t + this.cy) * t; +}; +UnitBezier.prototype.sampleCurveDerivativeX = function (t) { + return (3 * this.ax * t + 2 * this.bx) * t + this.cx; +}; +UnitBezier.prototype.solveCurveX = function (x, epsilon) { + if (typeof epsilon === 'undefined') + epsilon = 0.000001; + var t0, t1, t2, x2, i; + for (t2 = x, i = 0; i < 8; i++) { + x2 = this.sampleCurveX(t2) - x; + if (Math.abs(x2) < epsilon) + return t2; + var d2 = this.sampleCurveDerivativeX(t2); + if (Math.abs(d2) < 0.000001) + break; + t2 = t2 - x2 / d2; + } + t0 = 0; + t1 = 1; + t2 = x; + if (t2 < t0) + return t0; + if (t2 > t1) + return t1; + while (t0 < t1) { + x2 = this.sampleCurveX(t2); + if (Math.abs(x2 - x) < epsilon) + return t2; + if (x > x2) { + t0 = t2; + } else { + t1 = t2; + } + t2 = (t1 - t0) * 0.5 + t0; + } + return t2; +}; +UnitBezier.prototype.solve = function (x, epsilon) { + return this.sampleCurveY(this.solveCurveX(x, epsilon)); +}; + +var pointGeometry = Point; +function Point(x, y) { + this.x = x; + this.y = y; +} +Point.prototype = { + clone: function () { + return new Point(this.x, this.y); + }, + add: function (p) { + return this.clone()._add(p); + }, + sub: function (p) { + return this.clone()._sub(p); + }, + multByPoint: function (p) { + return this.clone()._multByPoint(p); + }, + divByPoint: function (p) { + return this.clone()._divByPoint(p); + }, + mult: function (k) { + return this.clone()._mult(k); + }, + div: function (k) { + return this.clone()._div(k); + }, + rotate: function (a) { + return this.clone()._rotate(a); + }, + rotateAround: function (a, p) { + return this.clone()._rotateAround(a, p); + }, + matMult: function (m) { + return this.clone()._matMult(m); + }, + unit: function () { + return this.clone()._unit(); + }, + perp: function () { + return this.clone()._perp(); + }, + round: function () { + return this.clone()._round(); + }, + mag: function () { + return Math.sqrt(this.x * this.x + this.y * this.y); + }, + equals: function (other) { + return this.x === other.x && this.y === other.y; + }, + dist: function (p) { + return Math.sqrt(this.distSqr(p)); + }, + distSqr: function (p) { + var dx = p.x - this.x, dy = p.y - this.y; + return dx * dx + dy * dy; + }, + angle: function () { + return Math.atan2(this.y, this.x); + }, + angleTo: function (b) { + return Math.atan2(this.y - b.y, this.x - b.x); + }, + angleWith: function (b) { + return this.angleWithSep(b.x, b.y); + }, + angleWithSep: function (x, y) { + return Math.atan2(this.x * y - this.y * x, this.x * x + this.y * y); + }, + _matMult: function (m) { + var x = m[0] * this.x + m[1] * this.y, y = m[2] * this.x + m[3] * this.y; + this.x = x; + this.y = y; + return this; + }, + _add: function (p) { + this.x += p.x; + this.y += p.y; + return this; + }, + _sub: function (p) { + this.x -= p.x; + this.y -= p.y; + return this; + }, + _mult: function (k) { + this.x *= k; + this.y *= k; + return this; + }, + _div: function (k) { + this.x /= k; + this.y /= k; + return this; + }, + _multByPoint: function (p) { + this.x *= p.x; + this.y *= p.y; + return this; + }, + _divByPoint: function (p) { + this.x /= p.x; + this.y /= p.y; + return this; + }, + _unit: function () { + this._div(this.mag()); + return this; + }, + _perp: function () { + var y = this.y; + this.y = this.x; + this.x = -y; + return this; + }, + _rotate: function (angle) { + var cos = Math.cos(angle), sin = Math.sin(angle), x = cos * this.x - sin * this.y, y = sin * this.x + cos * this.y; + this.x = x; + this.y = y; + return this; + }, + _rotateAround: function (angle, p) { + var cos = Math.cos(angle), sin = Math.sin(angle), x = p.x + cos * (this.x - p.x) - sin * (this.y - p.y), y = p.y + sin * (this.x - p.x) + cos * (this.y - p.y); + this.x = x; + this.y = y; + return this; + }, + _round: function () { + this.x = Math.round(this.x); + this.y = Math.round(this.y); + return this; + } +}; +Point.convert = function (a) { + if (a instanceof Point) { + return a; + } + if (Array.isArray(a)) { + return new Point(a[0], a[1]); + } + return a; +}; + +var window$1 = typeof self !== 'undefined' ? self : {}; + +function deepEqual(a, b) { + if (Array.isArray(a)) { + if (!Array.isArray(b) || a.length !== b.length) + return false; + for (let i = 0; i < a.length; i++) { + if (!deepEqual(a[i], b[i])) + return false; + } + return true; + } + if (typeof a === 'object' && a !== null && b !== null) { + if (!(typeof b === 'object')) + return false; + const keys = Object.keys(a); + if (keys.length !== Object.keys(b).length) + return false; + for (const key in a) { + if (!deepEqual(a[key], b[key])) + return false; + } + return true; + } + return a === b; +} + +const MAX_SAFE_INTEGER = Math.pow(2, 53) - 1; +const DEG_TO_RAD = Math.PI / 180; +const RAD_TO_DEG = 180 / Math.PI; +function degToRad(a) { + return a * DEG_TO_RAD; +} +function radToDeg(a) { + return a * RAD_TO_DEG; +} +function easeCubicInOut(t) { + if (t <= 0) + return 0; + if (t >= 1) + return 1; + const t2 = t * t, t3 = t2 * t; + return 4 * (t < 0.5 ? t3 : 3 * (t - t2) + t3 - 0.75); +} +function getBounds(points) { + let minX = Infinity; + let minY = Infinity; + let maxX = -Infinity; + let maxY = -Infinity; + for (const p of points) { + minX = Math.min(minX, p.x); + minY = Math.min(minY, p.y); + maxX = Math.max(maxX, p.x); + maxY = Math.max(maxY, p.y); + } + return { + min: new pointGeometry(minX, minY), + max: new pointGeometry(maxX, maxY) + }; +} +function polygonizeBounds(min, max, buffer = 0, close = true) { + const offset = new pointGeometry(buffer, buffer); + const minBuf = min.sub(offset); + const maxBuf = max.add(offset); + const polygon = [ + minBuf, + new pointGeometry(maxBuf.x, minBuf.y), + maxBuf, + new pointGeometry(minBuf.x, maxBuf.y) + ]; + if (close) { + polygon.push(minBuf); + } + return polygon; +} +function bufferConvexPolygon(ring, buffer) { + const output = []; + for (let currIdx = 0; currIdx < ring.length; currIdx++) { + const prevIdx = wrap(currIdx - 1, -1, ring.length - 1); + const nextIdx = wrap(currIdx + 1, -1, ring.length - 1); + const prev = ring[prevIdx]; + const curr = ring[currIdx]; + const next = ring[nextIdx]; + const p1 = prev.sub(curr).unit(); + const p2 = next.sub(curr).unit(); + const interiorAngle = p2.angleWithSep(p1.x, p1.y); + const offset = p1.add(p2).unit().mult(-1 * buffer / Math.sin(interiorAngle / 2)); + output.push(curr.add(offset)); + } + return output; +} +function bezier(p1x, p1y, p2x, p2y) { + const bezier = new unitbezier(p1x, p1y, p2x, p2y); + return function (t) { + return bezier.solve(t); + }; +} +const ease = bezier(0.25, 0.1, 0.25, 1); +function clamp(n, min, max) { + return Math.min(max, Math.max(min, n)); +} +function wrap(n, min, max) { + const d = max - min; + const w = ((n - min) % d + d) % d + min; + return w === min ? max : w; +} +function asyncAll(array, fn, callback) { + if (!array.length) { + return callback(null, []); + } + let remaining = array.length; + const results = new Array(array.length); + let error = null; + array.forEach((item, i) => { + fn(item, (err, result) => { + if (err) + error = err; + results[i] = result; + if (--remaining === 0) + callback(error, results); + }); + }); +} +function values(obj) { + const result = []; + for (const k in obj) { + result.push(obj[k]); + } + return result; +} +function keysDifference(obj, other) { + const difference = []; + for (const i in obj) { + if (!(i in other)) { + difference.push(i); + } + } + return difference; +} +function extend(dest, ...sources) { + for (const src of sources) { + for (const k in src) { + dest[k] = src[k]; + } + } + return dest; +} +function pick(src, properties) { + const result = {}; + for (let i = 0; i < properties.length; i++) { + const k = properties[i]; + if (k in src) { + result[k] = src[k]; + } + } + return result; +} +let id = 1; +function uniqueId() { + return id++; +} +function uuid() { + function b(a) { + return a ? (a ^ Math.random() * 16 >> a / 4).toString(16) : ([10000000] + -[1000] + -4000 + -8000 + -100000000000).replace(/[018]/g, b); + } + return b(); +} +function nextPowerOfTwo(value) { + if (value <= 1) + return 1; + return Math.pow(2, Math.ceil(Math.log(value) / Math.LN2)); +} +function prevPowerOfTwo(value) { + if (value <= 1) + return 1; + return Math.pow(2, Math.floor(Math.log(value) / Math.LN2)); +} +function validateUuid(str) { + return str ? /^[0-9a-f]{8}-[0-9a-f]{4}-[4][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i.test(str) : false; +} +function bindAll(fns, context) { + fns.forEach(fn => { + if (!context[fn]) { + return; + } + context[fn] = context[fn].bind(context); + }); +} +function endsWith(string, suffix) { + return string.indexOf(suffix, string.length - suffix.length) !== -1; +} +function mapObject(input, iterator, context) { + const output = {}; + for (const key in input) { + output[key] = iterator.call(context || this, input[key], key, input); + } + return output; +} +function filterObject(input, iterator, context) { + const output = {}; + for (const key in input) { + if (iterator.call(context || this, input[key], key, input)) { + output[key] = input[key]; + } + } + return output; +} +function clone(input) { + if (Array.isArray(input)) { + return input.map(clone); + } else if (typeof input === 'object' && input) { + return mapObject(input, clone); + } else { + return input; + } +} +function arraysIntersect(a, b) { + for (let l = 0; l < a.length; l++) { + if (b.indexOf(a[l]) >= 0) + return true; + } + return false; +} +const warnOnceHistory = {}; +function warnOnce(message) { + if (!warnOnceHistory[message]) { + if (typeof console !== 'undefined') + console.warn(message); + warnOnceHistory[message] = true; + } +} +function isCounterClockwise(a, b, c) { + return (c.y - a.y) * (b.x - a.x) > (b.y - a.y) * (c.x - a.x); +} +function calculateSignedArea(ring) { + let sum = 0; + for (let i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) { + p1 = ring[i]; + p2 = ring[j]; + sum += (p2.x - p1.x) * (p1.y + p2.y); + } + return sum; +} +function isWorker() { + return typeof WorkerGlobalScope !== 'undefined' && typeof self !== 'undefined' && self instanceof WorkerGlobalScope; +} +function parseCacheControl(cacheControl) { + const re = /(?:^|(?:\s*\,\s*))([^\x00-\x20\(\)<>@\,;\:\\"\/\[\]\?\=\{\}\x7F]+)(?:\=(?:([^\x00-\x20\(\)<>@\,;\:\\"\/\[\]\?\=\{\}\x7F]+)|(?:\"((?:[^"\\]|\\.)*)\")))?/g; + const header = {}; + cacheControl.replace(re, ($0, $1, $2, $3) => { + const value = $2 || $3; + header[$1] = value ? value.toLowerCase() : true; + return ''; + }); + if (header['max-age']) { + const maxAge = parseInt(header['max-age'], 10); + if (isNaN(maxAge)) + delete header['max-age']; + else + header['max-age'] = maxAge; + } + return header; +} +let _isSafari = null; +function isSafari(scope) { + if (_isSafari == null) { + const userAgent = scope.navigator ? scope.navigator.userAgent : null; + _isSafari = !!scope.safari || !!(userAgent && (/\b(iPad|iPhone|iPod)\b/.test(userAgent) || !!userAgent.match('Safari') && !userAgent.match('Chrome'))); + } + return _isSafari; +} +function storageAvailable(type) { + try { + const storage = window$1[type]; + storage.setItem('_mapbox_test_', 1); + storage.removeItem('_mapbox_test_'); + return true; + } catch (e) { + return false; + } +} +function b64EncodeUnicode(str) { + return window$1.btoa(encodeURIComponent(str).replace(/%([0-9A-F]{2})/g, (match, p1) => { + return String.fromCharCode(Number('0x' + p1)); + })); +} +function b64DecodeUnicode(str) { + return decodeURIComponent(window$1.atob(str).split('').map(c => { + return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2); + }).join('')); +} + +let linkEl; +let reducedMotionQuery; +let errorState = false; +let stubTime; +const exported = { + now() { + if (stubTime !== undefined) { + return stubTime; + } + return window$1.performance.now(); + }, + setErrorState() { + errorState = true; + }, + setNow(time) { + stubTime = time; + }, + restoreNow() { + stubTime = undefined; + }, + frame(fn) { + if (errorState) + return { + cancel: () => { + } + }; + const frame = window$1.requestAnimationFrame(fn); + return { cancel: () => window$1.cancelAnimationFrame(frame) }; + }, + getImageData(img, padding = 0) { + const canvas = window$1.document.createElement('canvas'); + const context = canvas.getContext('2d'); + if (!context) { + throw new Error('failed to create canvas 2d context'); + } + canvas.width = img.width; + canvas.height = img.height; + context.drawImage(img, 0, 0, img.width, img.height); + return context.getImageData(-padding, -padding, img.width + 2 * padding, img.height + 2 * padding); + }, + resolveURL(path) { + if (!linkEl) + linkEl = window$1.document.createElement('a'); + linkEl.href = path; + return linkEl.href; + }, + get devicePixelRatio() { + return window$1.devicePixelRatio; + }, + get prefersReducedMotion() { + if (!window$1.matchMedia) + return false; + if (reducedMotionQuery == null) { + reducedMotionQuery = window$1.matchMedia('(prefers-reduced-motion: reduce)'); + } + return reducedMotionQuery.matches; + } +}; + +let mapboxHTTPURLRegex; +const config = { + API_URL: 'https://api.mapbox.com', + get API_URL_REGEX() { + if (mapboxHTTPURLRegex == null) { + const prodMapboxHTTPURLRegex = /^((https?:)?\/\/)?([^\/]+\.)?mapbox\.c(n|om)(\/|\?|$)/i; + try { + mapboxHTTPURLRegex = process.env.API_URL_REGEX != null ? new RegExp(process.env.API_URL_REGEX) : prodMapboxHTTPURLRegex; + } catch (e) { + mapboxHTTPURLRegex = prodMapboxHTTPURLRegex; + } + } + return mapboxHTTPURLRegex; + }, + get EVENTS_URL() { + if (!this.API_URL) { + return null; + } + if (this.API_URL.indexOf('https://api.mapbox.cn') === 0) { + return 'https://events.mapbox.cn/events/v2'; + } else if (this.API_URL.indexOf('https://api.mapbox.com') === 0) { + return 'https://events.mapbox.com/events/v2'; + } else { + return null; + } + }, + SESSION_PATH: '/map-sessions/v1', + FEEDBACK_URL: 'https://apps.mapbox.com/feedback', + TILE_URL_VERSION: 'v4', + RASTER_URL_PREFIX: 'raster/v1', + REQUIRE_ACCESS_TOKEN: true, + ACCESS_TOKEN: null, + MAX_PARALLEL_IMAGE_REQUESTS: 16 +}; + +const exported$1 = { + supported: false, + testSupport +}; +let glForTesting; +let webpCheckComplete = false; +let webpImgTest; +let webpImgTestOnloadComplete = false; +if (window$1.document) { + webpImgTest = window$1.document.createElement('img'); + webpImgTest.onload = function () { + if (glForTesting) + testWebpTextureUpload(glForTesting); + glForTesting = null; + webpImgTestOnloadComplete = true; + }; + webpImgTest.onerror = function () { + webpCheckComplete = true; + glForTesting = null; + }; + webpImgTest.src = 'data:image/webp;base64,UklGRh4AAABXRUJQVlA4TBEAAAAvAQAAAAfQ//73v/+BiOh/AAA='; +} +function testSupport(gl) { + if (webpCheckComplete || !webpImgTest) + return; + if (webpImgTestOnloadComplete) { + testWebpTextureUpload(gl); + } else { + glForTesting = gl; + } +} +function testWebpTextureUpload(gl) { + const texture = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, texture); + try { + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, webpImgTest); + if (gl.isContextLost()) + return; + exported$1.supported = true; + } catch (e) { + } + gl.deleteTexture(texture); + webpCheckComplete = true; +} + +const SKU_ID = '01'; +function createSkuToken() { + const TOKEN_VERSION = '1'; + const base62chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; + let sessionRandomizer = ''; + for (let i = 0; i < 10; i++) { + sessionRandomizer += base62chars[Math.floor(Math.random() * 62)]; + } + const expiration = 12 * 60 * 60 * 1000; + const token = [ + TOKEN_VERSION, + SKU_ID, + sessionRandomizer + ].join(''); + const tokenExpiresAt = Date.now() + expiration; + return { + token, + tokenExpiresAt + }; +} + +const AUTH_ERR_MSG = 'NO_ACCESS_TOKEN'; +class RequestManager { + constructor(transformRequestFn, customAccessToken) { + this._transformRequestFn = transformRequestFn; + this._customAccessToken = customAccessToken; + this._createSkuToken(); + } + _createSkuToken() { + const skuToken = createSkuToken(); + this._skuToken = skuToken.token; + this._skuTokenExpiresAt = skuToken.tokenExpiresAt; + } + _isSkuTokenExpired() { + return Date.now() > this._skuTokenExpiresAt; + } + transformRequest(url, type) { + if (this._transformRequestFn) { + return this._transformRequestFn(url, type) || { url }; + } + return { url }; + } + normalizeStyleURL(url, accessToken) { + if (!isMapboxURL(url)) + return url; + const urlObject = parseUrl(url); + urlObject.path = `/styles/v1${ urlObject.path }`; + return this._makeAPIURL(urlObject, this._customAccessToken || accessToken); + } + normalizeGlyphsURL(url, accessToken) { + if (!isMapboxURL(url)) + return url; + const urlObject = parseUrl(url); + urlObject.path = `/fonts/v1${ urlObject.path }`; + return this._makeAPIURL(urlObject, this._customAccessToken || accessToken); + } + normalizeSourceURL(url, accessToken) { + if (!isMapboxURL(url)) + return url; + const urlObject = parseUrl(url); + urlObject.path = `/v4/${ urlObject.authority }.json`; + urlObject.params.push('secure'); + return this._makeAPIURL(urlObject, this._customAccessToken || accessToken); + } + normalizeSpriteURL(url, format, extension, accessToken) { + const urlObject = parseUrl(url); + if (!isMapboxURL(url)) { + urlObject.path += `${ format }${ extension }`; + return formatUrl(urlObject); + } + urlObject.path = `/styles/v1${ urlObject.path }/sprite${ format }${ extension }`; + return this._makeAPIURL(urlObject, this._customAccessToken || accessToken); + } + normalizeTileURL(tileURL, use2x, rasterTileSize) { + if (this._isSkuTokenExpired()) { + this._createSkuToken(); + } + if (tileURL && !isMapboxURL(tileURL)) + return tileURL; + const urlObject = parseUrl(tileURL); + const imageExtensionRe = /(\.(png|jpg)\d*)(?=$)/; + const extension = exported$1.supported ? '.webp' : '$1'; + const use2xAs512 = rasterTileSize && urlObject.authority !== 'raster' && rasterTileSize === 512; + const suffix = use2x || use2xAs512 ? '@2x' : ''; + urlObject.path = urlObject.path.replace(imageExtensionRe, `${ suffix }${ extension }`); + if (urlObject.authority === 'raster') { + urlObject.path = `/${ config.RASTER_URL_PREFIX }${ urlObject.path }`; + } else { + const tileURLAPIPrefixRe = /^.+\/v4\//; + urlObject.path = urlObject.path.replace(tileURLAPIPrefixRe, '/'); + urlObject.path = `/${ config.TILE_URL_VERSION }${ urlObject.path }`; + } + const accessToken = this._customAccessToken || getAccessToken(urlObject.params) || config.ACCESS_TOKEN; + if (config.REQUIRE_ACCESS_TOKEN && accessToken && this._skuToken) { + urlObject.params.push(`sku=${ this._skuToken }`); + } + return this._makeAPIURL(urlObject, accessToken); + } + canonicalizeTileURL(url, removeAccessToken) { + const extensionRe = /\.[\w]+$/; + const urlObject = parseUrl(url); + if (!urlObject.path.match(/^(\/v4\/|\/raster\/v1\/)/) || !urlObject.path.match(extensionRe)) { + return url; + } + let result = 'mapbox://'; + if (urlObject.path.match(/^\/raster\/v1\//)) { + const rasterPrefix = `/${ config.RASTER_URL_PREFIX }/`; + result += `raster/${ urlObject.path.replace(rasterPrefix, '') }`; + } else { + const tilesPrefix = `/${ config.TILE_URL_VERSION }/`; + result += `tiles/${ urlObject.path.replace(tilesPrefix, '') }`; + } + let params = urlObject.params; + if (removeAccessToken) { + params = params.filter(p => !p.match(/^access_token=/)); + } + if (params.length) + result += `?${ params.join('&') }`; + return result; + } + canonicalizeTileset(tileJSON, sourceURL) { + const removeAccessToken = sourceURL ? isMapboxURL(sourceURL) : false; + const canonical = []; + for (const url of tileJSON.tiles || []) { + if (isMapboxHTTPURL(url)) { + canonical.push(this.canonicalizeTileURL(url, removeAccessToken)); + } else { + canonical.push(url); + } + } + return canonical; + } + _makeAPIURL(urlObject, accessToken) { + const help = 'See https://www.mapbox.com/api-documentation/#access-tokens-and-token-scopes'; + const apiUrlObject = parseUrl(config.API_URL); + urlObject.protocol = apiUrlObject.protocol; + urlObject.authority = apiUrlObject.authority; + if (urlObject.protocol === 'http') { + const i = urlObject.params.indexOf('secure'); + if (i >= 0) + urlObject.params.splice(i, 1); + } + if (apiUrlObject.path !== '/') { + urlObject.path = `${ apiUrlObject.path }${ urlObject.path }`; + } + if (!config.REQUIRE_ACCESS_TOKEN) + return formatUrl(urlObject); + accessToken = accessToken || config.ACCESS_TOKEN; + if (!accessToken) + throw new Error(`An API access token is required to use Mapbox GL. ${ help }`); + if (accessToken[0] === 's') + throw new Error(`Use a public access token (pk.*) with Mapbox GL, not a secret access token (sk.*). ${ help }`); + urlObject.params = urlObject.params.filter(d => d.indexOf('access_token') === -1); + urlObject.params.push(`access_token=${ accessToken }`); + return formatUrl(urlObject); + } +} +function isMapboxURL(url) { + return url.indexOf('mapbox:') === 0; +} +function isMapboxHTTPURL(url) { + return config.API_URL_REGEX.test(url); +} +function hasCacheDefeatingSku(url) { + return url.indexOf('sku=') > 0 && isMapboxHTTPURL(url); +} +function getAccessToken(params) { + for (const param of params) { + const match = param.match(/^access_token=(.*)$/); + if (match) { + return match[1]; + } + } + return null; +} +const urlRe = /^(\w+):\/\/([^/?]*)(\/[^?]+)?\??(.+)?/; +function parseUrl(url) { + const parts = url.match(urlRe); + if (!parts) { + throw new Error('Unable to parse URL object'); + } + return { + protocol: parts[1], + authority: parts[2], + path: parts[3] || '/', + params: parts[4] ? parts[4].split('&') : [] + }; +} +function formatUrl(obj) { + const params = obj.params.length ? `?${ obj.params.join('&') }` : ''; + return `${ obj.protocol }://${ obj.authority }${ obj.path }${ params }`; +} +const telemEventKey = 'mapbox.eventData'; +function parseAccessToken(accessToken) { + if (!accessToken) { + return null; + } + const parts = accessToken.split('.'); + if (!parts || parts.length !== 3) { + return null; + } + try { + const jsonData = JSON.parse(b64DecodeUnicode(parts[1])); + return jsonData; + } catch (e) { + return null; + } +} +class TelemetryEvent { + constructor(type) { + this.type = type; + this.anonId = null; + this.eventData = {}; + this.queue = []; + this.pendingRequest = null; + } + getStorageKey(domain) { + const tokenData = parseAccessToken(config.ACCESS_TOKEN); + let u = ''; + if (tokenData && tokenData['u']) { + u = b64EncodeUnicode(tokenData['u']); + } else { + u = config.ACCESS_TOKEN || ''; + } + return domain ? `${ telemEventKey }.${ domain }:${ u }` : `${ telemEventKey }:${ u }`; + } + fetchEventData() { + const isLocalStorageAvailable = storageAvailable('localStorage'); + const storageKey = this.getStorageKey(); + const uuidKey = this.getStorageKey('uuid'); + if (isLocalStorageAvailable) { + try { + const data = window$1.localStorage.getItem(storageKey); + if (data) { + this.eventData = JSON.parse(data); + } + const uuid = window$1.localStorage.getItem(uuidKey); + if (uuid) + this.anonId = uuid; + } catch (e) { + warnOnce('Unable to read from LocalStorage'); + } + } + } + saveEventData() { + const isLocalStorageAvailable = storageAvailable('localStorage'); + const storageKey = this.getStorageKey(); + const uuidKey = this.getStorageKey('uuid'); + if (isLocalStorageAvailable) { + try { + window$1.localStorage.setItem(uuidKey, this.anonId); + if (Object.keys(this.eventData).length >= 1) { + window$1.localStorage.setItem(storageKey, JSON.stringify(this.eventData)); + } + } catch (e) { + warnOnce('Unable to write to LocalStorage'); + } + } + } + processRequests(_) { + } + postEvent(timestamp, additionalPayload, callback, customAccessToken) { + if (!config.EVENTS_URL) + return; + const eventsUrlObject = parseUrl(config.EVENTS_URL); + eventsUrlObject.params.push(`access_token=${ customAccessToken || config.ACCESS_TOKEN || '' }`); + const payload = { + event: this.type, + created: new Date(timestamp).toISOString(), + sdkIdentifier: 'mapbox-gl-js', + sdkVersion: version, + skuId: SKU_ID, + userId: this.anonId + }; + const finalPayload = additionalPayload ? extend(payload, additionalPayload) : payload; + const request = { + url: formatUrl(eventsUrlObject), + headers: { 'Content-Type': 'text/plain' }, + body: JSON.stringify([finalPayload]) + }; + this.pendingRequest = postData(request, error => { + this.pendingRequest = null; + callback(error); + this.saveEventData(); + this.processRequests(customAccessToken); + }); + } + queueRequest(event, customAccessToken) { + this.queue.push(event); + this.processRequests(customAccessToken); + } +} +class MapLoadEvent extends TelemetryEvent { + constructor() { + super('map.load'); + this.success = {}; + this.skuToken = ''; + } + postMapLoadEvent(mapId, skuToken, customAccessToken, callback) { + this.skuToken = skuToken; + this.errorCb = callback; + if (config.EVENTS_URL) { + if (customAccessToken || config.ACCESS_TOKEN) { + this.queueRequest({ + id: mapId, + timestamp: Date.now() + }, customAccessToken); + } else { + this.errorCb(new Error('A valid Mapbox access token is required to use Mapbox GL JS. To create an account or a new access token, visit https://account.mapbox.com/')); + } + } + } + processRequests(customAccessToken) { + if (this.pendingRequest || this.queue.length === 0) + return; + const {id, timestamp} = this.queue.shift(); + if (id && this.success[id]) + return; + if (!this.anonId) { + this.fetchEventData(); + } + if (!validateUuid(this.anonId)) { + this.anonId = uuid(); + } + this.postEvent(timestamp, { skuToken: this.skuToken }, err => { + if (err) { + this.errorCb(err); + } else { + if (id) + this.success[id] = true; + } + }, customAccessToken); + } +} +class MapSessionAPI extends TelemetryEvent { + constructor() { + super('map.auth'); + this.success = {}; + this.skuToken = ''; + } + getSession(timestamp, token, callback, customAccessToken) { + if (!config.API_URL || !config.SESSION_PATH) + return; + const authUrlObject = parseUrl(config.API_URL + config.SESSION_PATH); + authUrlObject.params.push(`sku=${ token || '' }`); + authUrlObject.params.push(`access_token=${ customAccessToken || config.ACCESS_TOKEN || '' }`); + const request = { + url: formatUrl(authUrlObject), + headers: { 'Content-Type': 'text/plain' } + }; + this.pendingRequest = getData(request, error => { + this.pendingRequest = null; + callback(error); + this.saveEventData(); + this.processRequests(customAccessToken); + }); + } + getSessionAPI(mapId, skuToken, customAccessToken, callback) { + this.skuToken = skuToken; + this.errorCb = callback; + if (config.SESSION_PATH && config.API_URL) { + if (customAccessToken || config.ACCESS_TOKEN) { + this.queueRequest({ + id: mapId, + timestamp: Date.now() + }, customAccessToken); + } else { + this.errorCb(new Error(AUTH_ERR_MSG)); + } + } + } + processRequests(customAccessToken) { + if (this.pendingRequest || this.queue.length === 0) + return; + const {id, timestamp} = this.queue.shift(); + if (id && this.success[id]) + return; + this.getSession(timestamp, this.skuToken, err => { + if (err) { + this.errorCb(err); + } else { + if (id) + this.success[id] = true; + } + }, customAccessToken); + } +} +class TurnstileEvent extends TelemetryEvent { + constructor(customAccessToken) { + super('appUserTurnstile'); + this._customAccessToken = customAccessToken; + } + postTurnstileEvent(tileUrls, customAccessToken) { + if (config.EVENTS_URL && config.ACCESS_TOKEN && Array.isArray(tileUrls) && tileUrls.some(url => isMapboxURL(url) || isMapboxHTTPURL(url))) { + this.queueRequest(Date.now(), customAccessToken); + } + } + processRequests(customAccessToken) { + if (this.pendingRequest || this.queue.length === 0) { + return; + } + if (!this.anonId || !this.eventData.lastSuccess || !this.eventData.tokenU) { + this.fetchEventData(); + } + const tokenData = parseAccessToken(config.ACCESS_TOKEN); + const tokenU = tokenData ? tokenData['u'] : config.ACCESS_TOKEN; + let dueForEvent = tokenU !== this.eventData.tokenU; + if (!validateUuid(this.anonId)) { + this.anonId = uuid(); + dueForEvent = true; + } + const nextUpdate = this.queue.shift(); + if (this.eventData.lastSuccess) { + const lastUpdate = new Date(this.eventData.lastSuccess); + const nextDate = new Date(nextUpdate); + const daysElapsed = (nextUpdate - this.eventData.lastSuccess) / (24 * 60 * 60 * 1000); + dueForEvent = dueForEvent || daysElapsed >= 1 || daysElapsed < -1 || lastUpdate.getDate() !== nextDate.getDate(); + } else { + dueForEvent = true; + } + if (!dueForEvent) { + return this.processRequests(); + } + this.postEvent(nextUpdate, { 'enabled.telemetry': false }, err => { + if (!err) { + this.eventData.lastSuccess = nextUpdate; + this.eventData.tokenU = tokenU; + } + }, customAccessToken); + } +} +const turnstileEvent_ = new TurnstileEvent(); +const postTurnstileEvent = turnstileEvent_.postTurnstileEvent.bind(turnstileEvent_); +const mapLoadEvent_ = new MapLoadEvent(); +const postMapLoadEvent = mapLoadEvent_.postMapLoadEvent.bind(mapLoadEvent_); +const mapSessionAPI_ = new MapSessionAPI(); +const getMapSessionAPI = mapSessionAPI_.getSessionAPI.bind(mapSessionAPI_); + +const CACHE_NAME = 'mapbox-tiles'; +let cacheLimit = 500; +let cacheCheckThreshold = 50; +const MIN_TIME_UNTIL_EXPIRY = 1000 * 60 * 7; +let sharedCache; +function cacheOpen() { + if (window$1.caches && !sharedCache) { + sharedCache = window$1.caches.open(CACHE_NAME); + } +} +let responseConstructorSupportsReadableStream; +function prepareBody(response, callback) { + if (responseConstructorSupportsReadableStream === undefined) { + try { + new Response(new ReadableStream()); + responseConstructorSupportsReadableStream = true; + } catch (e) { + responseConstructorSupportsReadableStream = false; + } + } + if (responseConstructorSupportsReadableStream) { + callback(response.body); + } else { + response.blob().then(callback); + } +} +function cachePut(request, response, requestTime) { + cacheOpen(); + if (!sharedCache) + return; + const options = { + status: response.status, + statusText: response.statusText, + headers: new window$1.Headers() + }; + response.headers.forEach((v, k) => options.headers.set(k, v)); + const cacheControl = parseCacheControl(response.headers.get('Cache-Control') || ''); + if (cacheControl['no-store']) { + return; + } + if (cacheControl['max-age']) { + options.headers.set('Expires', new Date(requestTime + cacheControl['max-age'] * 1000).toUTCString()); + } + const timeUntilExpiry = new Date(options.headers.get('Expires')).getTime() - requestTime; + if (timeUntilExpiry < MIN_TIME_UNTIL_EXPIRY) + return; + prepareBody(response, body => { + const clonedResponse = new window$1.Response(body, options); + cacheOpen(); + if (!sharedCache) + return; + sharedCache.then(cache => cache.put(stripQueryParameters(request.url), clonedResponse)).catch(e => warnOnce(e.message)); + }); +} +function stripQueryParameters(url) { + const start = url.indexOf('?'); + return start < 0 ? url : url.slice(0, start); +} +function cacheGet(request, callback) { + cacheOpen(); + if (!sharedCache) + return callback(null); + const strippedURL = stripQueryParameters(request.url); + sharedCache.then(cache => { + cache.match(strippedURL).then(response => { + const fresh = isFresh(response); + cache.delete(strippedURL); + if (fresh) { + cache.put(strippedURL, response.clone()); + } + callback(null, response, fresh); + }).catch(callback); + }).catch(callback); +} +function isFresh(response) { + if (!response) + return false; + const expires = new Date(response.headers.get('Expires') || 0); + const cacheControl = parseCacheControl(response.headers.get('Cache-Control') || ''); + return expires > Date.now() && !cacheControl['no-cache']; +} +let globalEntryCounter = Infinity; +function cacheEntryPossiblyAdded(dispatcher) { + globalEntryCounter++; + if (globalEntryCounter > cacheCheckThreshold) { + dispatcher.getActor().send('enforceCacheSizeLimit', cacheLimit); + globalEntryCounter = 0; + } +} +function enforceCacheSizeLimit(limit) { + cacheOpen(); + if (!sharedCache) + return; + sharedCache.then(cache => { + cache.keys().then(keys => { + for (let i = 0; i < keys.length - limit; i++) { + cache.delete(keys[i]); + } + }); + }); +} +function clearTileCache(callback) { + const promise = window$1.caches.delete(CACHE_NAME); + if (callback) { + promise.catch(callback).then(() => callback()); + } +} +function setCacheLimits(limit, checkThreshold) { + cacheLimit = limit; + cacheCheckThreshold = checkThreshold; +} + +let supportsOffscreenCanvas; +function offscreenCanvasSupported() { + if (supportsOffscreenCanvas == null) { + supportsOffscreenCanvas = window$1.OffscreenCanvas && new window$1.OffscreenCanvas(1, 1).getContext('2d') && typeof window$1.createImageBitmap === 'function'; + } + return supportsOffscreenCanvas; +} + +const ResourceType = { + Unknown: 'Unknown', + Style: 'Style', + Source: 'Source', + Tile: 'Tile', + Glyphs: 'Glyphs', + SpriteImage: 'SpriteImage', + SpriteJSON: 'SpriteJSON', + Image: 'Image' +}; +if (typeof Object.freeze == 'function') { + Object.freeze(ResourceType); +} +class AJAXError extends Error { + constructor(message, status, url) { + if (status === 401 && isMapboxHTTPURL(url)) { + message += ': you may have provided an invalid Mapbox access token. See https://www.mapbox.com/api-documentation/#access-tokens-and-token-scopes'; + } + super(message); + this.status = status; + this.url = url; + } + toString() { + return `${ this.name }: ${ this.message } (${ this.status }): ${ this.url }`; + } +} +const getReferrer = isWorker() ? () => self.worker && self.worker.referrer : () => (window$1.location.protocol === 'blob:' ? window$1.parent : window$1).location.href; +const isFileURL = url => /^file:/.test(url) || /^file:/.test(getReferrer()) && !/^\w+:/.test(url); +function makeFetchRequest(requestParameters, callback) { + const controller = new window$1.AbortController(); + const request = new window$1.Request(requestParameters.url, { + method: requestParameters.method || 'GET', + body: requestParameters.body, + credentials: requestParameters.credentials, + headers: requestParameters.headers, + referrer: getReferrer(), + signal: controller.signal + }); + let complete = false; + let aborted = false; + const cacheIgnoringSearch = hasCacheDefeatingSku(request.url); + if (requestParameters.type === 'json') { + request.headers.set('Accept', 'application/json'); + } + const validateOrFetch = (err, cachedResponse, responseIsFresh) => { + if (aborted) + return; + if (err) { + if (err.message !== 'SecurityError') { + warnOnce(err); + } + } + if (cachedResponse && responseIsFresh) { + return finishRequest(cachedResponse); + } + const requestTime = Date.now(); + window$1.fetch(request).then(response => { + if (response.ok) { + const cacheableResponse = cacheIgnoringSearch ? response.clone() : null; + return finishRequest(response, cacheableResponse, requestTime); + } else { + return callback(new AJAXError(response.statusText, response.status, requestParameters.url)); + } + }).catch(error => { + if (error.code === 20) { + return; + } + callback(new Error(error.message)); + }); + }; + const finishRequest = (response, cacheableResponse, requestTime) => { + (requestParameters.type === 'arrayBuffer' ? response.arrayBuffer() : requestParameters.type === 'json' ? response.json() : response.text()).then(result => { + if (aborted) + return; + if (cacheableResponse && requestTime) { + cachePut(request, cacheableResponse, requestTime); + } + complete = true; + callback(null, result, response.headers.get('Cache-Control'), response.headers.get('Expires')); + }).catch(err => { + if (!aborted) + callback(new Error(err.message)); + }); + }; + if (cacheIgnoringSearch) { + cacheGet(request, validateOrFetch); + } else { + validateOrFetch(null, null); + } + return { + cancel: () => { + aborted = true; + if (!complete) + controller.abort(); + } + }; +} +function makeXMLHttpRequest(requestParameters, callback) { + const xhr = new window$1.XMLHttpRequest(); + xhr.open(requestParameters.method || 'GET', requestParameters.url, true); + if (requestParameters.type === 'arrayBuffer') { + xhr.responseType = 'arraybuffer'; + } + for (const k in requestParameters.headers) { + xhr.setRequestHeader(k, requestParameters.headers[k]); + } + if (requestParameters.type === 'json') { + xhr.responseType = 'text'; + xhr.setRequestHeader('Accept', 'application/json'); + } + xhr.withCredentials = requestParameters.credentials === 'include'; + xhr.onerror = () => { + callback(new Error(xhr.statusText)); + }; + xhr.onload = () => { + if ((xhr.status >= 200 && xhr.status < 300 || xhr.status === 0) && xhr.response !== null) { + let data = xhr.response; + if (requestParameters.type === 'json') { + try { + data = JSON.parse(xhr.response); + } catch (err) { + return callback(err); + } + } + callback(null, data, xhr.getResponseHeader('Cache-Control'), xhr.getResponseHeader('Expires')); + } else { + callback(new AJAXError(xhr.statusText, xhr.status, requestParameters.url)); + } + }; + xhr.send(requestParameters.body); + return { cancel: () => xhr.abort() }; +} +const makeRequest = function (requestParameters, callback) { + if (!isFileURL(requestParameters.url)) { + if (window$1.fetch && window$1.Request && window$1.AbortController && window$1.Request.prototype.hasOwnProperty('signal')) { + return makeFetchRequest(requestParameters, callback); + } + if (isWorker() && self.worker && self.worker.actor) { + const queueOnMainThread = true; + return self.worker.actor.send('getResource', requestParameters, callback, undefined, queueOnMainThread); + } + } + return makeXMLHttpRequest(requestParameters, callback); +}; +const getJSON = function (requestParameters, callback) { + return makeRequest(extend(requestParameters, { type: 'json' }), callback); +}; +const getArrayBuffer = function (requestParameters, callback) { + return makeRequest(extend(requestParameters, { type: 'arrayBuffer' }), callback); +}; +const postData = function (requestParameters, callback) { + return makeRequest(extend(requestParameters, { method: 'POST' }), callback); +}; +const getData = function (requestParameters, callback) { + return makeRequest(extend(requestParameters, { method: 'GET' }), callback); +}; +function sameOrigin(url) { + const a = window$1.document.createElement('a'); + a.href = url; + return a.protocol === window$1.document.location.protocol && a.host === window$1.document.location.host; +} +const transparentPngUrl = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAC0lEQVQYV2NgAAIAAAUAAarVyFEAAAAASUVORK5CYII='; +function arrayBufferToImage(data, callback, cacheControl, expires) { + const img = new window$1.Image(); + const URL = window$1.URL; + img.onload = () => { + callback(null, img); + URL.revokeObjectURL(img.src); + img.onload = null; + window$1.requestAnimationFrame(() => { + img.src = transparentPngUrl; + }); + }; + img.onerror = () => callback(new Error('Could not load image. Please make sure to use a supported image type such as PNG or JPEG. Note that SVGs are not supported.')); + const blob = new window$1.Blob([new Uint8Array(data)], { type: 'image/png' }); + img.cacheControl = cacheControl; + img.expires = expires; + img.src = data.byteLength ? URL.createObjectURL(blob) : transparentPngUrl; +} +function arrayBufferToImageBitmap(data, callback) { + const blob = new window$1.Blob([new Uint8Array(data)], { type: 'image/png' }); + window$1.createImageBitmap(blob).then(imgBitmap => { + callback(null, imgBitmap); + }).catch(e => { + callback(new Error(`Could not load image because of ${ e.message }. Please make sure to use a supported image type such as PNG or JPEG. Note that SVGs are not supported.`)); + }); +} +let imageQueue, numImageRequests; +const resetImageRequestQueue = () => { + imageQueue = []; + numImageRequests = 0; +}; +resetImageRequestQueue(); +const getImage = function (requestParameters, callback) { + if (exported$1.supported) { + if (!requestParameters.headers) { + requestParameters.headers = {}; + } + requestParameters.headers.accept = 'image/webp,*/*'; + } + if (numImageRequests >= config.MAX_PARALLEL_IMAGE_REQUESTS) { + const queued = { + requestParameters, + callback, + cancelled: false, + cancel() { + this.cancelled = true; + } + }; + imageQueue.push(queued); + return queued; + } + numImageRequests++; + let advanced = false; + const advanceImageRequestQueue = () => { + if (advanced) + return; + advanced = true; + numImageRequests--; + while (imageQueue.length && numImageRequests < config.MAX_PARALLEL_IMAGE_REQUESTS) { + const request = imageQueue.shift(); + const {requestParameters, callback, cancelled} = request; + if (!cancelled) { + request.cancel = getImage(requestParameters, callback).cancel; + } + } + }; + const request = getArrayBuffer(requestParameters, (err, data, cacheControl, expires) => { + advanceImageRequestQueue(); + if (err) { + callback(err); + } else if (data) { + if (offscreenCanvasSupported()) { + arrayBufferToImageBitmap(data, callback); + } else { + arrayBufferToImage(data, callback, cacheControl, expires); + } + } + }); + return { + cancel: () => { + request.cancel(); + advanceImageRequestQueue(); + } + }; +}; +const getVideo = function (urls, callback) { + const video = window$1.document.createElement('video'); + video.muted = true; + video.onloadstart = function () { + callback(null, video); + }; + for (let i = 0; i < urls.length; i++) { + const s = window$1.document.createElement('source'); + if (!sameOrigin(urls[i])) { + video.crossOrigin = 'Anonymous'; + } + s.src = urls[i]; + video.appendChild(s); + } + return { + cancel: () => { + } + }; +}; + +function _addEventListener(type, listener, listenerList) { + const listenerExists = listenerList[type] && listenerList[type].indexOf(listener) !== -1; + if (!listenerExists) { + listenerList[type] = listenerList[type] || []; + listenerList[type].push(listener); + } +} +function _removeEventListener(type, listener, listenerList) { + if (listenerList && listenerList[type]) { + const index = listenerList[type].indexOf(listener); + if (index !== -1) { + listenerList[type].splice(index, 1); + } + } +} +class Event { + constructor(type, data = {}) { + extend(this, data); + this.type = type; + } +} +class ErrorEvent extends Event { + constructor(error, data = {}) { + super('error', extend({ error }, data)); + } +} +class Evented { + on(type, listener) { + this._listeners = this._listeners || {}; + _addEventListener(type, listener, this._listeners); + return this; + } + off(type, listener) { + _removeEventListener(type, listener, this._listeners); + _removeEventListener(type, listener, this._oneTimeListeners); + return this; + } + once(type, listener) { + if (!listener) { + return new Promise(resolve => this.once(type, resolve)); + } + this._oneTimeListeners = this._oneTimeListeners || {}; + _addEventListener(type, listener, this._oneTimeListeners); + return this; + } + fire(event, properties) { + if (typeof event === 'string') { + event = new Event(event, properties || {}); + } + const type = event.type; + if (this.listens(type)) { + event.target = this; + const listeners = this._listeners && this._listeners[type] ? this._listeners[type].slice() : []; + for (const listener of listeners) { + listener.call(this, event); + } + const oneTimeListeners = this._oneTimeListeners && this._oneTimeListeners[type] ? this._oneTimeListeners[type].slice() : []; + for (const listener of oneTimeListeners) { + _removeEventListener(type, listener, this._oneTimeListeners); + listener.call(this, event); + } + const parent = this._eventedParent; + if (parent) { + extend(event, typeof this._eventedParentData === 'function' ? this._eventedParentData() : this._eventedParentData); + parent.fire(event); + } + } else if (event instanceof ErrorEvent) { + console.error(event.error); + } + return this; + } + listens(type) { + return !!(this._listeners && this._listeners[type] && this._listeners[type].length > 0 || this._oneTimeListeners && this._oneTimeListeners[type] && this._oneTimeListeners[type].length > 0 || this._eventedParent && this._eventedParent.listens(type)); + } + setEventedParent(parent, data) { + this._eventedParent = parent; + this._eventedParentData = data; + return this; + } +} + +var $version = 8; +var $root = { + version: { + required: true, + type: "enum", + values: [ + 8 + ] + }, + name: { + type: "string" + }, + metadata: { + type: "*" + }, + center: { + type: "array", + value: "number" + }, + zoom: { + type: "number" + }, + bearing: { + type: "number", + "default": 0, + period: 360, + units: "degrees" + }, + pitch: { + type: "number", + "default": 0, + units: "degrees" + }, + light: { + type: "light" + }, + terrain: { + type: "terrain" + }, + sources: { + required: true, + type: "sources" + }, + sprite: { + type: "string" + }, + glyphs: { + type: "string" + }, + transition: { + type: "transition" + }, + layers: { + required: true, + type: "array", + value: "layer" + } +}; +var sources = { + "*": { + type: "source" + } +}; +var source = [ + "source_vector", + "source_raster", + "source_raster_dem", + "source_geojson", + "source_video", + "source_image" +]; +var source_vector = { + type: { + required: true, + type: "enum", + values: { + vector: { + } + } + }, + url: { + type: "string" + }, + tiles: { + type: "array", + value: "string" + }, + bounds: { + type: "array", + value: "number", + length: 4, + "default": [ + -180, + -85.051129, + 180, + 85.051129 + ] + }, + scheme: { + type: "enum", + values: { + xyz: { + }, + tms: { + } + }, + "default": "xyz" + }, + minzoom: { + type: "number", + "default": 0 + }, + maxzoom: { + type: "number", + "default": 22 + }, + attribution: { + type: "string" + }, + promoteId: { + type: "promoteId" + }, + volatile: { + type: "boolean", + "default": false + }, + "*": { + type: "*" + } +}; +var source_raster = { + type: { + required: true, + type: "enum", + values: { + raster: { + } + } + }, + url: { + type: "string" + }, + tiles: { + type: "array", + value: "string" + }, + bounds: { + type: "array", + value: "number", + length: 4, + "default": [ + -180, + -85.051129, + 180, + 85.051129 + ] + }, + minzoom: { + type: "number", + "default": 0 + }, + maxzoom: { + type: "number", + "default": 22 + }, + tileSize: { + type: "number", + "default": 512, + units: "pixels" + }, + scheme: { + type: "enum", + values: { + xyz: { + }, + tms: { + } + }, + "default": "xyz" + }, + attribution: { + type: "string" + }, + volatile: { + type: "boolean", + "default": false + }, + "*": { + type: "*" + } +}; +var source_raster_dem = { + type: { + required: true, + type: "enum", + values: { + "raster-dem": { + } + } + }, + url: { + type: "string" + }, + tiles: { + type: "array", + value: "string" + }, + bounds: { + type: "array", + value: "number", + length: 4, + "default": [ + -180, + -85.051129, + 180, + 85.051129 + ] + }, + minzoom: { + type: "number", + "default": 0 + }, + maxzoom: { + type: "number", + "default": 22 + }, + tileSize: { + type: "number", + "default": 512, + units: "pixels" + }, + attribution: { + type: "string" + }, + encoding: { + type: "enum", + values: { + terrarium: { + }, + mapbox: { + } + }, + "default": "mapbox" + }, + volatile: { + type: "boolean", + "default": false + }, + "*": { + type: "*" + } +}; +var source_geojson = { + type: { + required: true, + type: "enum", + values: { + geojson: { + } + } + }, + data: { + type: "*" + }, + maxzoom: { + type: "number", + "default": 18 + }, + attribution: { + type: "string" + }, + buffer: { + type: "number", + "default": 128, + maximum: 512, + minimum: 0 + }, + filter: { + type: "*" + }, + tolerance: { + type: "number", + "default": 0.375 + }, + cluster: { + type: "boolean", + "default": false + }, + clusterRadius: { + type: "number", + "default": 50, + minimum: 0 + }, + clusterMaxZoom: { + type: "number" + }, + clusterMinPoints: { + type: "number" + }, + clusterProperties: { + type: "*" + }, + lineMetrics: { + type: "boolean", + "default": false + }, + generateId: { + type: "boolean", + "default": false + }, + promoteId: { + type: "promoteId" + } +}; +var source_video = { + type: { + required: true, + type: "enum", + values: { + video: { + } + } + }, + urls: { + required: true, + type: "array", + value: "string" + }, + coordinates: { + required: true, + type: "array", + length: 4, + value: { + type: "array", + length: 2, + value: "number" + } + } +}; +var source_image = { + type: { + required: true, + type: "enum", + values: { + image: { + } + } + }, + url: { + required: true, + type: "string" + }, + coordinates: { + required: true, + type: "array", + length: 4, + value: { + type: "array", + length: 2, + value: "number" + } + } +}; +var layer = { + id: { + type: "string", + required: true + }, + type: { + type: "enum", + values: { + fill: { + }, + line: { + }, + symbol: { + }, + circle: { + }, + heatmap: { + }, + "fill-extrusion": { + }, + raster: { + }, + hillshade: { + }, + background: { + }, + sky: { + } + }, + required: true + }, + metadata: { + type: "*" + }, + source: { + type: "string" + }, + "source-layer": { + type: "string" + }, + minzoom: { + type: "number", + minimum: 0, + maximum: 24 + }, + maxzoom: { + type: "number", + minimum: 0, + maximum: 24 + }, + filter: { + type: "filter" + }, + layout: { + type: "layout" + }, + paint: { + type: "paint" + } +}; +var layout = [ + "layout_fill", + "layout_line", + "layout_circle", + "layout_heatmap", + "layout_fill-extrusion", + "layout_symbol", + "layout_raster", + "layout_hillshade", + "layout_background", + "layout_sky" +]; +var layout_background = { + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}; +var layout_sky = { + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}; +var layout_fill = { + "fill-sort-key": { + type: "number", + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}; +var layout_circle = { + "circle-sort-key": { + type: "number", + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}; +var layout_heatmap = { + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}; +var layout_line = { + "line-cap": { + type: "enum", + values: { + butt: { + }, + round: { + }, + square: { + } + }, + "default": "butt", + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "line-join": { + type: "enum", + values: { + bevel: { + }, + round: { + }, + miter: { + } + }, + "default": "miter", + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "line-miter-limit": { + type: "number", + "default": 2, + requires: [ + { + "line-join": "miter" + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "line-round-limit": { + type: "number", + "default": 1.05, + requires: [ + { + "line-join": "round" + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "line-sort-key": { + type: "number", + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}; +var layout_symbol = { + "symbol-placement": { + type: "enum", + values: { + point: { + }, + line: { + }, + "line-center": { + } + }, + "default": "point", + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "symbol-spacing": { + type: "number", + "default": 250, + minimum: 1, + units: "pixels", + requires: [ + { + "symbol-placement": "line" + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "symbol-avoid-edges": { + type: "boolean", + "default": false, + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "symbol-sort-key": { + type: "number", + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "symbol-z-order": { + type: "enum", + values: { + auto: { + }, + "viewport-y": { + }, + source: { + } + }, + "default": "auto", + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-allow-overlap": { + type: "boolean", + "default": false, + requires: [ + "icon-image" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-ignore-placement": { + type: "boolean", + "default": false, + requires: [ + "icon-image" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-optional": { + type: "boolean", + "default": false, + requires: [ + "icon-image", + "text-field" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-rotation-alignment": { + type: "enum", + values: { + map: { + }, + viewport: { + }, + auto: { + } + }, + "default": "auto", + requires: [ + "icon-image" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-size": { + type: "number", + "default": 1, + minimum: 0, + units: "factor of the original icon size", + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "icon-text-fit": { + type: "enum", + values: { + none: { + }, + width: { + }, + height: { + }, + both: { + } + }, + "default": "none", + requires: [ + "icon-image", + "text-field" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-text-fit-padding": { + type: "array", + value: "number", + length: 4, + "default": [ + 0, + 0, + 0, + 0 + ], + units: "pixels", + requires: [ + "icon-image", + "text-field", + { + "icon-text-fit": [ + "both", + "width", + "height" + ] + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-image": { + type: "resolvedImage", + tokens: true, + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "icon-rotate": { + type: "number", + "default": 0, + period: 360, + units: "degrees", + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "icon-padding": { + type: "number", + "default": 2, + minimum: 0, + units: "pixels", + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-keep-upright": { + type: "boolean", + "default": false, + requires: [ + "icon-image", + { + "icon-rotation-alignment": "map" + }, + { + "symbol-placement": [ + "line", + "line-center" + ] + } + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-offset": { + type: "array", + value: "number", + length: 2, + "default": [ + 0, + 0 + ], + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "icon-anchor": { + type: "enum", + values: { + center: { + }, + left: { + }, + right: { + }, + top: { + }, + bottom: { + }, + "top-left": { + }, + "top-right": { + }, + "bottom-left": { + }, + "bottom-right": { + } + }, + "default": "center", + requires: [ + "icon-image" + ], + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "icon-pitch-alignment": { + type: "enum", + values: { + map: { + }, + viewport: { + }, + auto: { + } + }, + "default": "auto", + requires: [ + "icon-image" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-pitch-alignment": { + type: "enum", + values: { + map: { + }, + viewport: { + }, + auto: { + } + }, + "default": "auto", + requires: [ + "text-field" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-rotation-alignment": { + type: "enum", + values: { + map: { + }, + viewport: { + }, + auto: { + } + }, + "default": "auto", + requires: [ + "text-field" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-field": { + type: "formatted", + "default": "", + tokens: true, + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-font": { + type: "array", + value: "string", + "default": [ + "Open Sans Regular", + "Arial Unicode MS Regular" + ], + requires: [ + "text-field" + ], + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-size": { + type: "number", + "default": 16, + minimum: 0, + units: "pixels", + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-max-width": { + type: "number", + "default": 10, + minimum: 0, + units: "ems", + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-line-height": { + type: "number", + "default": 1.2, + units: "ems", + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-letter-spacing": { + type: "number", + "default": 0, + units: "ems", + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-justify": { + type: "enum", + values: { + auto: { + }, + left: { + }, + center: { + }, + right: { + } + }, + "default": "center", + requires: [ + "text-field" + ], + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-radial-offset": { + type: "number", + units: "ems", + "default": 0, + requires: [ + "text-field" + ], + "property-type": "data-driven", + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature" + ] + } + }, + "text-variable-anchor": { + type: "array", + value: "enum", + values: { + center: { + }, + left: { + }, + right: { + }, + top: { + }, + bottom: { + }, + "top-left": { + }, + "top-right": { + }, + "bottom-left": { + }, + "bottom-right": { + } + }, + requires: [ + "text-field", + { + "symbol-placement": [ + "point" + ] + } + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-anchor": { + type: "enum", + values: { + center: { + }, + left: { + }, + right: { + }, + top: { + }, + bottom: { + }, + "top-left": { + }, + "top-right": { + }, + "bottom-left": { + }, + "bottom-right": { + } + }, + "default": "center", + requires: [ + "text-field", + { + "!": "text-variable-anchor" + } + ], + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-max-angle": { + type: "number", + "default": 45, + units: "degrees", + requires: [ + "text-field", + { + "symbol-placement": [ + "line", + "line-center" + ] + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-writing-mode": { + type: "array", + value: "enum", + values: { + horizontal: { + }, + vertical: { + } + }, + requires: [ + "text-field", + { + "symbol-placement": [ + "point" + ] + } + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-rotate": { + type: "number", + "default": 0, + period: 360, + units: "degrees", + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-padding": { + type: "number", + "default": 2, + minimum: 0, + units: "pixels", + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-keep-upright": { + type: "boolean", + "default": true, + requires: [ + "text-field", + { + "text-rotation-alignment": "map" + }, + { + "symbol-placement": [ + "line", + "line-center" + ] + } + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-transform": { + type: "enum", + values: { + none: { + }, + uppercase: { + }, + lowercase: { + } + }, + "default": "none", + requires: [ + "text-field" + ], + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-offset": { + type: "array", + value: "number", + units: "ems", + length: 2, + "default": [ + 0, + 0 + ], + requires: [ + "text-field", + { + "!": "text-radial-offset" + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "data-driven" + }, + "text-allow-overlap": { + type: "boolean", + "default": false, + requires: [ + "text-field" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-ignore-placement": { + type: "boolean", + "default": false, + requires: [ + "text-field" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-optional": { + type: "boolean", + "default": false, + requires: [ + "text-field", + "icon-image" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}; +var layout_raster = { + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}; +var layout_hillshade = { + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}; +var filter = { + type: "array", + value: "*" +}; +var filter_operator = { + type: "enum", + values: { + "==": { + }, + "!=": { + }, + ">": { + }, + ">=": { + }, + "<": { + }, + "<=": { + }, + "in": { + }, + "!in": { + }, + all: { + }, + any: { + }, + none: { + }, + has: { + }, + "!has": { + }, + within: { + } + } +}; +var geometry_type = { + type: "enum", + values: { + Point: { + }, + LineString: { + }, + Polygon: { + } + } +}; +var function_stop = { + type: "array", + minimum: 0, + maximum: 24, + value: [ + "number", + "color" + ], + length: 2 +}; +var expression = { + type: "array", + value: "*", + minimum: 1 +}; +var light = { + anchor: { + type: "enum", + "default": "viewport", + values: { + map: { + }, + viewport: { + } + }, + "property-type": "data-constant", + transition: false, + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + } + }, + position: { + type: "array", + "default": [ + 1.15, + 210, + 30 + ], + length: 3, + value: "number", + "property-type": "data-constant", + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + } + }, + color: { + type: "color", + "property-type": "data-constant", + "default": "#ffffff", + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + transition: true + }, + intensity: { + type: "number", + "property-type": "data-constant", + "default": 0.5, + minimum: 0, + maximum: 1, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + transition: true + } +}; +var terrain = { + source: { + type: "string", + required: true + }, + exaggeration: { + type: "number", + "property-type": "data-constant", + "default": 1, + minimum: 0, + maximum: 1000, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + transition: true + } +}; +var paint = [ + "paint_fill", + "paint_line", + "paint_circle", + "paint_heatmap", + "paint_fill-extrusion", + "paint_symbol", + "paint_raster", + "paint_hillshade", + "paint_background", + "paint_sky" +]; +var paint_fill = { + "fill-antialias": { + type: "boolean", + "default": true, + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "fill-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "fill-color": { + type: "color", + "default": "#000000", + transition: true, + requires: [ + { + "!": "fill-pattern" + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "fill-outline-color": { + type: "color", + transition: true, + requires: [ + { + "!": "fill-pattern" + }, + { + "fill-antialias": true + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "fill-translate": { + type: "array", + value: "number", + length: 2, + "default": [ + 0, + 0 + ], + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "fill-translate-anchor": { + type: "enum", + values: { + map: { + }, + viewport: { + } + }, + "default": "map", + requires: [ + "fill-translate" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "fill-pattern": { + type: "resolvedImage", + transition: true, + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "cross-faded-data-driven" + } +}; +var paint_line = { + "line-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "line-color": { + type: "color", + "default": "#000000", + transition: true, + requires: [ + { + "!": "line-pattern" + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "line-translate": { + type: "array", + value: "number", + length: 2, + "default": [ + 0, + 0 + ], + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "line-translate-anchor": { + type: "enum", + values: { + map: { + }, + viewport: { + } + }, + "default": "map", + requires: [ + "line-translate" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "line-width": { + type: "number", + "default": 1, + minimum: 0, + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "line-gap-width": { + type: "number", + "default": 0, + minimum: 0, + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "line-offset": { + type: "number", + "default": 0, + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "line-blur": { + type: "number", + "default": 0, + minimum: 0, + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "line-dasharray": { + type: "array", + value: "number", + minimum: 0, + transition: true, + units: "line widths", + requires: [ + { + "!": "line-pattern" + } + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "cross-faded" + }, + "line-pattern": { + type: "resolvedImage", + transition: true, + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "cross-faded-data-driven" + }, + "line-gradient": { + type: "color", + transition: false, + requires: [ + { + "!": "line-dasharray" + }, + { + "!": "line-pattern" + }, + { + source: "geojson", + has: { + lineMetrics: true + } + } + ], + expression: { + interpolated: true, + parameters: [ + "line-progress" + ] + }, + "property-type": "color-ramp" + } +}; +var paint_circle = { + "circle-radius": { + type: "number", + "default": 5, + minimum: 0, + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "circle-color": { + type: "color", + "default": "#000000", + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "circle-blur": { + type: "number", + "default": 0, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "circle-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "circle-translate": { + type: "array", + value: "number", + length: 2, + "default": [ + 0, + 0 + ], + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "circle-translate-anchor": { + type: "enum", + values: { + map: { + }, + viewport: { + } + }, + "default": "map", + requires: [ + "circle-translate" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "circle-pitch-scale": { + type: "enum", + values: { + map: { + }, + viewport: { + } + }, + "default": "map", + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "circle-pitch-alignment": { + type: "enum", + values: { + map: { + }, + viewport: { + } + }, + "default": "viewport", + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "circle-stroke-width": { + type: "number", + "default": 0, + minimum: 0, + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "circle-stroke-color": { + type: "color", + "default": "#000000", + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "circle-stroke-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + } +}; +var paint_heatmap = { + "heatmap-radius": { + type: "number", + "default": 30, + minimum: 1, + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "heatmap-weight": { + type: "number", + "default": 1, + minimum: 0, + transition: false, + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "heatmap-intensity": { + type: "number", + "default": 1, + minimum: 0, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "heatmap-color": { + type: "color", + "default": [ + "interpolate", + [ + "linear" + ], + [ + "heatmap-density" + ], + 0, + "rgba(0, 0, 255, 0)", + 0.1, + "royalblue", + 0.3, + "cyan", + 0.5, + "lime", + 0.7, + "yellow", + 1, + "red" + ], + transition: false, + expression: { + interpolated: true, + parameters: [ + "heatmap-density" + ] + }, + "property-type": "color-ramp" + }, + "heatmap-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + } +}; +var paint_symbol = { + "icon-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "icon-color": { + type: "color", + "default": "#000000", + transition: true, + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "icon-halo-color": { + type: "color", + "default": "rgba(0, 0, 0, 0)", + transition: true, + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "icon-halo-width": { + type: "number", + "default": 0, + minimum: 0, + transition: true, + units: "pixels", + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "icon-halo-blur": { + type: "number", + "default": 0, + minimum: 0, + transition: true, + units: "pixels", + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "icon-translate": { + type: "array", + value: "number", + length: 2, + "default": [ + 0, + 0 + ], + transition: true, + units: "pixels", + requires: [ + "icon-image" + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "icon-translate-anchor": { + type: "enum", + values: { + map: { + }, + viewport: { + } + }, + "default": "map", + requires: [ + "icon-image", + "icon-translate" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "text-color": { + type: "color", + "default": "#000000", + transition: true, + overridable: true, + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "text-halo-color": { + type: "color", + "default": "rgba(0, 0, 0, 0)", + transition: true, + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "text-halo-width": { + type: "number", + "default": 0, + minimum: 0, + transition: true, + units: "pixels", + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "text-halo-blur": { + type: "number", + "default": 0, + minimum: 0, + transition: true, + units: "pixels", + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "text-translate": { + type: "array", + value: "number", + length: 2, + "default": [ + 0, + 0 + ], + transition: true, + units: "pixels", + requires: [ + "text-field" + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "text-translate-anchor": { + type: "enum", + values: { + map: { + }, + viewport: { + } + }, + "default": "map", + requires: [ + "text-field", + "text-translate" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + } +}; +var paint_raster = { + "raster-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "raster-hue-rotate": { + type: "number", + "default": 0, + period: 360, + transition: true, + units: "degrees", + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "raster-brightness-min": { + type: "number", + "default": 0, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "raster-brightness-max": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "raster-saturation": { + type: "number", + "default": 0, + minimum: -1, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "raster-contrast": { + type: "number", + "default": 0, + minimum: -1, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "raster-resampling": { + type: "enum", + values: { + linear: { + }, + nearest: { + } + }, + "default": "linear", + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "raster-fade-duration": { + type: "number", + "default": 300, + minimum: 0, + transition: false, + units: "milliseconds", + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + } +}; +var paint_hillshade = { + "hillshade-illumination-direction": { + type: "number", + "default": 335, + minimum: 0, + maximum: 359, + transition: false, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "hillshade-illumination-anchor": { + type: "enum", + values: { + map: { + }, + viewport: { + } + }, + "default": "viewport", + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "hillshade-exaggeration": { + type: "number", + "default": 0.5, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "hillshade-shadow-color": { + type: "color", + "default": "#000000", + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "hillshade-highlight-color": { + type: "color", + "default": "#FFFFFF", + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "hillshade-accent-color": { + type: "color", + "default": "#000000", + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + } +}; +var paint_background = { + "background-color": { + type: "color", + "default": "#000000", + transition: true, + requires: [ + { + "!": "background-pattern" + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "background-pattern": { + type: "resolvedImage", + transition: true, + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "cross-faded" + }, + "background-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + } +}; +var paint_sky = { + "sky-type": { + type: "enum", + values: { + gradient: { + }, + atmosphere: { + } + }, + "default": "atmosphere", + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "sky-atmosphere-sun": { + type: "array", + value: "number", + length: 2, + units: "degrees", + minimum: [ + 0, + 0 + ], + maximum: [ + 360, + 180 + ], + transition: false, + requires: [ + { + "sky-type": "atmosphere" + } + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "sky-atmosphere-sun-intensity": { + type: "number", + requires: [ + { + "sky-type": "atmosphere" + } + ], + "default": 10, + minimum: 0, + maximum: 100, + transition: false, + "property-type": "data-constant" + }, + "sky-gradient-center": { + type: "array", + requires: [ + { + "sky-type": "gradient" + } + ], + value: "number", + "default": [ + 0, + 0 + ], + length: 2, + units: "degrees", + minimum: [ + 0, + 0 + ], + maximum: [ + 360, + 180 + ], + transition: false, + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "sky-gradient-radius": { + type: "number", + requires: [ + { + "sky-type": "gradient" + } + ], + "default": 90, + minimum: 0, + maximum: 180, + transition: false, + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "sky-gradient": { + type: "color", + "default": [ + "interpolate", + [ + "linear" + ], + [ + "sky-radial-progress" + ], + 0.8, + "#87ceeb", + 1, + "white" + ], + transition: false, + requires: [ + { + "sky-type": "gradient" + } + ], + expression: { + interpolated: true, + parameters: [ + "sky-radial-progress" + ] + }, + "property-type": "color-ramp" + }, + "sky-atmosphere-halo-color": { + type: "color", + "default": "white", + transition: false, + requires: [ + { + "sky-type": "atmosphere" + } + ], + "property-type": "data-constant" + }, + "sky-atmosphere-color": { + type: "color", + "default": "white", + transition: false, + requires: [ + { + "sky-type": "atmosphere" + } + ], + "property-type": "data-constant" + }, + "sky-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + } +}; +var transition = { + duration: { + type: "number", + "default": 300, + minimum: 0, + units: "milliseconds" + }, + delay: { + type: "number", + "default": 0, + minimum: 0, + units: "milliseconds" + } +}; +var promoteId = { + "*": { + type: "string" + } +}; +var spec = { + $version: $version, + $root: $root, + sources: sources, + source: source, + source_vector: source_vector, + source_raster: source_raster, + source_raster_dem: source_raster_dem, + source_geojson: source_geojson, + source_video: source_video, + source_image: source_image, + layer: layer, + layout: layout, + layout_background: layout_background, + layout_sky: layout_sky, + layout_fill: layout_fill, + layout_circle: layout_circle, + layout_heatmap: layout_heatmap, + "layout_fill-extrusion": { + visibility: { + type: "enum", + values: { + visible: { + }, + none: { + } + }, + "default": "visible", + "property-type": "constant" + } +}, + layout_line: layout_line, + layout_symbol: layout_symbol, + layout_raster: layout_raster, + layout_hillshade: layout_hillshade, + filter: filter, + filter_operator: filter_operator, + geometry_type: geometry_type, + "function": { + expression: { + type: "expression" + }, + stops: { + type: "array", + value: "function_stop" + }, + base: { + type: "number", + "default": 1, + minimum: 0 + }, + property: { + type: "string", + "default": "$zoom" + }, + type: { + type: "enum", + values: { + identity: { + }, + exponential: { + }, + interval: { + }, + categorical: { + } + }, + "default": "exponential" + }, + colorSpace: { + type: "enum", + values: { + rgb: { + }, + lab: { + }, + hcl: { + } + }, + "default": "rgb" + }, + "default": { + type: "*", + required: false + } +}, + function_stop: function_stop, + expression: expression, + light: light, + terrain: terrain, + paint: paint, + paint_fill: paint_fill, + "paint_fill-extrusion": { + "fill-extrusion-opacity": { + type: "number", + "default": 1, + minimum: 0, + maximum: 1, + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "fill-extrusion-color": { + type: "color", + "default": "#000000", + transition: true, + requires: [ + { + "!": "fill-extrusion-pattern" + } + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "fill-extrusion-translate": { + type: "array", + value: "number", + length: 2, + "default": [ + 0, + 0 + ], + transition: true, + units: "pixels", + expression: { + interpolated: true, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "fill-extrusion-translate-anchor": { + type: "enum", + values: { + map: { + }, + viewport: { + } + }, + "default": "map", + requires: [ + "fill-extrusion-translate" + ], + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + }, + "fill-extrusion-pattern": { + type: "resolvedImage", + transition: true, + expression: { + interpolated: false, + parameters: [ + "zoom", + "feature" + ] + }, + "property-type": "cross-faded-data-driven" + }, + "fill-extrusion-height": { + type: "number", + "default": 0, + minimum: 0, + units: "meters", + transition: true, + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "fill-extrusion-base": { + type: "number", + "default": 0, + minimum: 0, + units: "meters", + transition: true, + requires: [ + "fill-extrusion-height" + ], + expression: { + interpolated: true, + parameters: [ + "zoom", + "feature", + "feature-state" + ] + }, + "property-type": "data-driven" + }, + "fill-extrusion-vertical-gradient": { + type: "boolean", + "default": true, + transition: false, + expression: { + interpolated: false, + parameters: [ + "zoom" + ] + }, + "property-type": "data-constant" + } +}, + paint_line: paint_line, + paint_circle: paint_circle, + paint_heatmap: paint_heatmap, + paint_symbol: paint_symbol, + paint_raster: paint_raster, + paint_hillshade: paint_hillshade, + paint_background: paint_background, + paint_sky: paint_sky, + transition: transition, + "property-type": { + "data-driven": { + type: "property-type" + }, + "cross-faded": { + type: "property-type" + }, + "cross-faded-data-driven": { + type: "property-type" + }, + "color-ramp": { + type: "property-type" + }, + "data-constant": { + type: "property-type" + }, + constant: { + type: "property-type" + } +}, + promoteId: promoteId +}; + +class ValidationError { + constructor(key, value, message, identifier) { + this.message = (key ? `${ key }: ` : '') + message; + if (identifier) + this.identifier = identifier; + if (value !== null && value !== undefined && value.__line__) { + this.line = value.__line__; + } + } +} + +function validateConstants(options) { + const key = options.key; + const constants = options.value; + if (constants) { + return [new ValidationError(key, constants, 'constants have been deprecated as of v8')]; + } else { + return []; + } +} + +function extend$1 (output, ...inputs) { + for (const input of inputs) { + for (const k in input) { + output[k] = input[k]; + } + } + return output; +} + +function unbundle(value) { + if (value instanceof Number || value instanceof String || value instanceof Boolean) { + return value.valueOf(); + } else { + return value; + } +} +function deepUnbundle(value) { + if (Array.isArray(value)) { + return value.map(deepUnbundle); + } else if (value instanceof Object && !(value instanceof Number || value instanceof String || value instanceof Boolean)) { + const unbundledValue = {}; + for (const key in value) { + unbundledValue[key] = deepUnbundle(value[key]); + } + return unbundledValue; + } + return unbundle(value); +} + +class ParsingError extends Error { + constructor(key, message) { + super(message); + this.message = message; + this.key = key; + } +} + +class Scope { + constructor(parent, bindings = []) { + this.parent = parent; + this.bindings = {}; + for (const [name, expression] of bindings) { + this.bindings[name] = expression; + } + } + concat(bindings) { + return new Scope(this, bindings); + } + get(name) { + if (this.bindings[name]) { + return this.bindings[name]; + } + if (this.parent) { + return this.parent.get(name); + } + throw new Error(`${ name } not found in scope.`); + } + has(name) { + if (this.bindings[name]) + return true; + return this.parent ? this.parent.has(name) : false; + } +} + +const NullType = { kind: 'null' }; +const NumberType = { kind: 'number' }; +const StringType = { kind: 'string' }; +const BooleanType = { kind: 'boolean' }; +const ColorType = { kind: 'color' }; +const ObjectType = { kind: 'object' }; +const ValueType = { kind: 'value' }; +const ErrorType = { kind: 'error' }; +const CollatorType = { kind: 'collator' }; +const FormattedType = { kind: 'formatted' }; +const ResolvedImageType = { kind: 'resolvedImage' }; +function array(itemType, N) { + return { + kind: 'array', + itemType, + N + }; +} +function toString(type) { + if (type.kind === 'array') { + const itemType = toString(type.itemType); + return typeof type.N === 'number' ? `array<${ itemType }, ${ type.N }>` : type.itemType.kind === 'value' ? 'array' : `array<${ itemType }>`; + } else { + return type.kind; + } +} +const valueMemberTypes = [ + NullType, + NumberType, + StringType, + BooleanType, + ColorType, + FormattedType, + ObjectType, + array(ValueType), + ResolvedImageType +]; +function checkSubtype(expected, t) { + if (t.kind === 'error') { + return null; + } else if (expected.kind === 'array') { + if (t.kind === 'array' && (t.N === 0 && t.itemType.kind === 'value' || !checkSubtype(expected.itemType, t.itemType)) && (typeof expected.N !== 'number' || expected.N === t.N)) { + return null; + } + } else if (expected.kind === t.kind) { + return null; + } else if (expected.kind === 'value') { + for (const memberType of valueMemberTypes) { + if (!checkSubtype(memberType, t)) { + return null; + } + } + } + return `Expected ${ toString(expected) } but found ${ toString(t) } instead.`; +} +function isValidType(provided, allowedTypes) { + return allowedTypes.some(t => t.kind === provided.kind); +} +function isValidNativeType(provided, allowedTypes) { + return allowedTypes.some(t => { + if (t === 'null') { + return provided === null; + } else if (t === 'array') { + return Array.isArray(provided); + } else if (t === 'object') { + return provided && !Array.isArray(provided) && typeof provided === 'object'; + } else { + return t === typeof provided; + } + }); +} + +function createCommonjsModule(fn, module) { + return module = { exports: {} }, fn(module, module.exports), module.exports; +} + +var csscolorparser = createCommonjsModule(function (module, exports) { +var kCSSColorTable = { + 'transparent': [ + 0, + 0, + 0, + 0 + ], + 'aliceblue': [ + 240, + 248, + 255, + 1 + ], + 'antiquewhite': [ + 250, + 235, + 215, + 1 + ], + 'aqua': [ + 0, + 255, + 255, + 1 + ], + 'aquamarine': [ + 127, + 255, + 212, + 1 + ], + 'azure': [ + 240, + 255, + 255, + 1 + ], + 'beige': [ + 245, + 245, + 220, + 1 + ], + 'bisque': [ + 255, + 228, + 196, + 1 + ], + 'black': [ + 0, + 0, + 0, + 1 + ], + 'blanchedalmond': [ + 255, + 235, + 205, + 1 + ], + 'blue': [ + 0, + 0, + 255, + 1 + ], + 'blueviolet': [ + 138, + 43, + 226, + 1 + ], + 'brown': [ + 165, + 42, + 42, + 1 + ], + 'burlywood': [ + 222, + 184, + 135, + 1 + ], + 'cadetblue': [ + 95, + 158, + 160, + 1 + ], + 'chartreuse': [ + 127, + 255, + 0, + 1 + ], + 'chocolate': [ + 210, + 105, + 30, + 1 + ], + 'coral': [ + 255, + 127, + 80, + 1 + ], + 'cornflowerblue': [ + 100, + 149, + 237, + 1 + ], + 'cornsilk': [ + 255, + 248, + 220, + 1 + ], + 'crimson': [ + 220, + 20, + 60, + 1 + ], + 'cyan': [ + 0, + 255, + 255, + 1 + ], + 'darkblue': [ + 0, + 0, + 139, + 1 + ], + 'darkcyan': [ + 0, + 139, + 139, + 1 + ], + 'darkgoldenrod': [ + 184, + 134, + 11, + 1 + ], + 'darkgray': [ + 169, + 169, + 169, + 1 + ], + 'darkgreen': [ + 0, + 100, + 0, + 1 + ], + 'darkgrey': [ + 169, + 169, + 169, + 1 + ], + 'darkkhaki': [ + 189, + 183, + 107, + 1 + ], + 'darkmagenta': [ + 139, + 0, + 139, + 1 + ], + 'darkolivegreen': [ + 85, + 107, + 47, + 1 + ], + 'darkorange': [ + 255, + 140, + 0, + 1 + ], + 'darkorchid': [ + 153, + 50, + 204, + 1 + ], + 'darkred': [ + 139, + 0, + 0, + 1 + ], + 'darksalmon': [ + 233, + 150, + 122, + 1 + ], + 'darkseagreen': [ + 143, + 188, + 143, + 1 + ], + 'darkslateblue': [ + 72, + 61, + 139, + 1 + ], + 'darkslategray': [ + 47, + 79, + 79, + 1 + ], + 'darkslategrey': [ + 47, + 79, + 79, + 1 + ], + 'darkturquoise': [ + 0, + 206, + 209, + 1 + ], + 'darkviolet': [ + 148, + 0, + 211, + 1 + ], + 'deeppink': [ + 255, + 20, + 147, + 1 + ], + 'deepskyblue': [ + 0, + 191, + 255, + 1 + ], + 'dimgray': [ + 105, + 105, + 105, + 1 + ], + 'dimgrey': [ + 105, + 105, + 105, + 1 + ], + 'dodgerblue': [ + 30, + 144, + 255, + 1 + ], + 'firebrick': [ + 178, + 34, + 34, + 1 + ], + 'floralwhite': [ + 255, + 250, + 240, + 1 + ], + 'forestgreen': [ + 34, + 139, + 34, + 1 + ], + 'fuchsia': [ + 255, + 0, + 255, + 1 + ], + 'gainsboro': [ + 220, + 220, + 220, + 1 + ], + 'ghostwhite': [ + 248, + 248, + 255, + 1 + ], + 'gold': [ + 255, + 215, + 0, + 1 + ], + 'goldenrod': [ + 218, + 165, + 32, + 1 + ], + 'gray': [ + 128, + 128, + 128, + 1 + ], + 'green': [ + 0, + 128, + 0, + 1 + ], + 'greenyellow': [ + 173, + 255, + 47, + 1 + ], + 'grey': [ + 128, + 128, + 128, + 1 + ], + 'honeydew': [ + 240, + 255, + 240, + 1 + ], + 'hotpink': [ + 255, + 105, + 180, + 1 + ], + 'indianred': [ + 205, + 92, + 92, + 1 + ], + 'indigo': [ + 75, + 0, + 130, + 1 + ], + 'ivory': [ + 255, + 255, + 240, + 1 + ], + 'khaki': [ + 240, + 230, + 140, + 1 + ], + 'lavender': [ + 230, + 230, + 250, + 1 + ], + 'lavenderblush': [ + 255, + 240, + 245, + 1 + ], + 'lawngreen': [ + 124, + 252, + 0, + 1 + ], + 'lemonchiffon': [ + 255, + 250, + 205, + 1 + ], + 'lightblue': [ + 173, + 216, + 230, + 1 + ], + 'lightcoral': [ + 240, + 128, + 128, + 1 + ], + 'lightcyan': [ + 224, + 255, + 255, + 1 + ], + 'lightgoldenrodyellow': [ + 250, + 250, + 210, + 1 + ], + 'lightgray': [ + 211, + 211, + 211, + 1 + ], + 'lightgreen': [ + 144, + 238, + 144, + 1 + ], + 'lightgrey': [ + 211, + 211, + 211, + 1 + ], + 'lightpink': [ + 255, + 182, + 193, + 1 + ], + 'lightsalmon': [ + 255, + 160, + 122, + 1 + ], + 'lightseagreen': [ + 32, + 178, + 170, + 1 + ], + 'lightskyblue': [ + 135, + 206, + 250, + 1 + ], + 'lightslategray': [ + 119, + 136, + 153, + 1 + ], + 'lightslategrey': [ + 119, + 136, + 153, + 1 + ], + 'lightsteelblue': [ + 176, + 196, + 222, + 1 + ], + 'lightyellow': [ + 255, + 255, + 224, + 1 + ], + 'lime': [ + 0, + 255, + 0, + 1 + ], + 'limegreen': [ + 50, + 205, + 50, + 1 + ], + 'linen': [ + 250, + 240, + 230, + 1 + ], + 'magenta': [ + 255, + 0, + 255, + 1 + ], + 'maroon': [ + 128, + 0, + 0, + 1 + ], + 'mediumaquamarine': [ + 102, + 205, + 170, + 1 + ], + 'mediumblue': [ + 0, + 0, + 205, + 1 + ], + 'mediumorchid': [ + 186, + 85, + 211, + 1 + ], + 'mediumpurple': [ + 147, + 112, + 219, + 1 + ], + 'mediumseagreen': [ + 60, + 179, + 113, + 1 + ], + 'mediumslateblue': [ + 123, + 104, + 238, + 1 + ], + 'mediumspringgreen': [ + 0, + 250, + 154, + 1 + ], + 'mediumturquoise': [ + 72, + 209, + 204, + 1 + ], + 'mediumvioletred': [ + 199, + 21, + 133, + 1 + ], + 'midnightblue': [ + 25, + 25, + 112, + 1 + ], + 'mintcream': [ + 245, + 255, + 250, + 1 + ], + 'mistyrose': [ + 255, + 228, + 225, + 1 + ], + 'moccasin': [ + 255, + 228, + 181, + 1 + ], + 'navajowhite': [ + 255, + 222, + 173, + 1 + ], + 'navy': [ + 0, + 0, + 128, + 1 + ], + 'oldlace': [ + 253, + 245, + 230, + 1 + ], + 'olive': [ + 128, + 128, + 0, + 1 + ], + 'olivedrab': [ + 107, + 142, + 35, + 1 + ], + 'orange': [ + 255, + 165, + 0, + 1 + ], + 'orangered': [ + 255, + 69, + 0, + 1 + ], + 'orchid': [ + 218, + 112, + 214, + 1 + ], + 'palegoldenrod': [ + 238, + 232, + 170, + 1 + ], + 'palegreen': [ + 152, + 251, + 152, + 1 + ], + 'paleturquoise': [ + 175, + 238, + 238, + 1 + ], + 'palevioletred': [ + 219, + 112, + 147, + 1 + ], + 'papayawhip': [ + 255, + 239, + 213, + 1 + ], + 'peachpuff': [ + 255, + 218, + 185, + 1 + ], + 'peru': [ + 205, + 133, + 63, + 1 + ], + 'pink': [ + 255, + 192, + 203, + 1 + ], + 'plum': [ + 221, + 160, + 221, + 1 + ], + 'powderblue': [ + 176, + 224, + 230, + 1 + ], + 'purple': [ + 128, + 0, + 128, + 1 + ], + 'rebeccapurple': [ + 102, + 51, + 153, + 1 + ], + 'red': [ + 255, + 0, + 0, + 1 + ], + 'rosybrown': [ + 188, + 143, + 143, + 1 + ], + 'royalblue': [ + 65, + 105, + 225, + 1 + ], + 'saddlebrown': [ + 139, + 69, + 19, + 1 + ], + 'salmon': [ + 250, + 128, + 114, + 1 + ], + 'sandybrown': [ + 244, + 164, + 96, + 1 + ], + 'seagreen': [ + 46, + 139, + 87, + 1 + ], + 'seashell': [ + 255, + 245, + 238, + 1 + ], + 'sienna': [ + 160, + 82, + 45, + 1 + ], + 'silver': [ + 192, + 192, + 192, + 1 + ], + 'skyblue': [ + 135, + 206, + 235, + 1 + ], + 'slateblue': [ + 106, + 90, + 205, + 1 + ], + 'slategray': [ + 112, + 128, + 144, + 1 + ], + 'slategrey': [ + 112, + 128, + 144, + 1 + ], + 'snow': [ + 255, + 250, + 250, + 1 + ], + 'springgreen': [ + 0, + 255, + 127, + 1 + ], + 'steelblue': [ + 70, + 130, + 180, + 1 + ], + 'tan': [ + 210, + 180, + 140, + 1 + ], + 'teal': [ + 0, + 128, + 128, + 1 + ], + 'thistle': [ + 216, + 191, + 216, + 1 + ], + 'tomato': [ + 255, + 99, + 71, + 1 + ], + 'turquoise': [ + 64, + 224, + 208, + 1 + ], + 'violet': [ + 238, + 130, + 238, + 1 + ], + 'wheat': [ + 245, + 222, + 179, + 1 + ], + 'white': [ + 255, + 255, + 255, + 1 + ], + 'whitesmoke': [ + 245, + 245, + 245, + 1 + ], + 'yellow': [ + 255, + 255, + 0, + 1 + ], + 'yellowgreen': [ + 154, + 205, + 50, + 1 + ] +}; +function clamp_css_byte(i) { + i = Math.round(i); + return i < 0 ? 0 : i > 255 ? 255 : i; +} +function clamp_css_float(f) { + return f < 0 ? 0 : f > 1 ? 1 : f; +} +function parse_css_int(str) { + if (str[str.length - 1] === '%') + return clamp_css_byte(parseFloat(str) / 100 * 255); + return clamp_css_byte(parseInt(str)); +} +function parse_css_float(str) { + if (str[str.length - 1] === '%') + return clamp_css_float(parseFloat(str) / 100); + return clamp_css_float(parseFloat(str)); +} +function css_hue_to_rgb(m1, m2, h) { + if (h < 0) + h += 1; + else if (h > 1) + h -= 1; + if (h * 6 < 1) + return m1 + (m2 - m1) * h * 6; + if (h * 2 < 1) + return m2; + if (h * 3 < 2) + return m1 + (m2 - m1) * (2 / 3 - h) * 6; + return m1; +} +function parseCSSColor(css_str) { + var str = css_str.replace(/ /g, '').toLowerCase(); + if (str in kCSSColorTable) + return kCSSColorTable[str].slice(); + if (str[0] === '#') { + if (str.length === 4) { + var iv = parseInt(str.substr(1), 16); + if (!(iv >= 0 && iv <= 4095)) + return null; + return [ + (iv & 3840) >> 4 | (iv & 3840) >> 8, + iv & 240 | (iv & 240) >> 4, + iv & 15 | (iv & 15) << 4, + 1 + ]; + } else if (str.length === 7) { + var iv = parseInt(str.substr(1), 16); + if (!(iv >= 0 && iv <= 16777215)) + return null; + return [ + (iv & 16711680) >> 16, + (iv & 65280) >> 8, + iv & 255, + 1 + ]; + } + return null; + } + var op = str.indexOf('('), ep = str.indexOf(')'); + if (op !== -1 && ep + 1 === str.length) { + var fname = str.substr(0, op); + var params = str.substr(op + 1, ep - (op + 1)).split(','); + var alpha = 1; + switch (fname) { + case 'rgba': + if (params.length !== 4) + return null; + alpha = parse_css_float(params.pop()); + case 'rgb': + if (params.length !== 3) + return null; + return [ + parse_css_int(params[0]), + parse_css_int(params[1]), + parse_css_int(params[2]), + alpha + ]; + case 'hsla': + if (params.length !== 4) + return null; + alpha = parse_css_float(params.pop()); + case 'hsl': + if (params.length !== 3) + return null; + var h = (parseFloat(params[0]) % 360 + 360) % 360 / 360; + var s = parse_css_float(params[1]); + var l = parse_css_float(params[2]); + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + return [ + clamp_css_byte(css_hue_to_rgb(m1, m2, h + 1 / 3) * 255), + clamp_css_byte(css_hue_to_rgb(m1, m2, h) * 255), + clamp_css_byte(css_hue_to_rgb(m1, m2, h - 1 / 3) * 255), + alpha + ]; + default: + return null; + } + } + return null; +} +try { + exports.parseCSSColor = parseCSSColor; +} catch (e) { +} +}); +var csscolorparser_1 = csscolorparser.parseCSSColor; + +class Color { + constructor(r, g, b, a = 1) { + this.r = r; + this.g = g; + this.b = b; + this.a = a; + } + static parse(input) { + if (!input) { + return undefined; + } + if (input instanceof Color) { + return input; + } + if (typeof input !== 'string') { + return undefined; + } + const rgba = csscolorparser_1(input); + if (!rgba) { + return undefined; + } + return new Color(rgba[0] / 255 * rgba[3], rgba[1] / 255 * rgba[3], rgba[2] / 255 * rgba[3], rgba[3]); + } + toString() { + const [r, g, b, a] = this.toArray(); + return `rgba(${ Math.round(r) },${ Math.round(g) },${ Math.round(b) },${ a })`; + } + toArray() { + const {r, g, b, a} = this; + return a === 0 ? [ + 0, + 0, + 0, + 0 + ] : [ + r * 255 / a, + g * 255 / a, + b * 255 / a, + a + ]; + } +} +Color.black = new Color(0, 0, 0, 1); +Color.white = new Color(1, 1, 1, 1); +Color.transparent = new Color(0, 0, 0, 0); +Color.red = new Color(1, 0, 0, 1); +Color.blue = new Color(0, 0, 1, 1); + +class Collator { + constructor(caseSensitive, diacriticSensitive, locale) { + if (caseSensitive) + this.sensitivity = diacriticSensitive ? 'variant' : 'case'; + else + this.sensitivity = diacriticSensitive ? 'accent' : 'base'; + this.locale = locale; + this.collator = new Intl.Collator(this.locale ? this.locale : [], { + sensitivity: this.sensitivity, + usage: 'search' + }); + } + compare(lhs, rhs) { + return this.collator.compare(lhs, rhs); + } + resolvedLocale() { + return new Intl.Collator(this.locale ? this.locale : []).resolvedOptions().locale; + } +} + +class FormattedSection { + constructor(text, image, scale, fontStack, textColor) { + this.text = text; + this.image = image; + this.scale = scale; + this.fontStack = fontStack; + this.textColor = textColor; + } +} +class Formatted { + constructor(sections) { + this.sections = sections; + } + static fromString(unformatted) { + return new Formatted([new FormattedSection(unformatted, null, null, null, null)]); + } + isEmpty() { + if (this.sections.length === 0) + return true; + return !this.sections.some(section => section.text.length !== 0 || section.image && section.image.name.length !== 0); + } + static factory(text) { + if (text instanceof Formatted) { + return text; + } else { + return Formatted.fromString(text); + } + } + toString() { + if (this.sections.length === 0) + return ''; + return this.sections.map(section => section.text).join(''); + } + serialize() { + const serialized = ['format']; + for (const section of this.sections) { + if (section.image) { + serialized.push([ + 'image', + section.image.name + ]); + continue; + } + serialized.push(section.text); + const options = {}; + if (section.fontStack) { + options['text-font'] = [ + 'literal', + section.fontStack.split(',') + ]; + } + if (section.scale) { + options['font-scale'] = section.scale; + } + if (section.textColor) { + options['text-color'] = ['rgba'].concat(section.textColor.toArray()); + } + serialized.push(options); + } + return serialized; + } +} + +class ResolvedImage { + constructor(options) { + this.name = options.name; + this.available = options.available; + } + toString() { + return this.name; + } + static fromString(name) { + if (!name) + return null; + return new ResolvedImage({ + name, + available: false + }); + } + serialize() { + return [ + 'image', + this.name + ]; + } +} + +function validateRGBA(r, g, b, a) { + if (!(typeof r === 'number' && r >= 0 && r <= 255 && typeof g === 'number' && g >= 0 && g <= 255 && typeof b === 'number' && b >= 0 && b <= 255)) { + const value = typeof a === 'number' ? [ + r, + g, + b, + a + ] : [ + r, + g, + b + ]; + return `Invalid rgba value [${ value.join(', ') }]: 'r', 'g', and 'b' must be between 0 and 255.`; + } + if (!(typeof a === 'undefined' || typeof a === 'number' && a >= 0 && a <= 1)) { + return `Invalid rgba value [${ [ + r, + g, + b, + a + ].join(', ') }]: 'a' must be between 0 and 1.`; + } + return null; +} +function isValue(mixed) { + if (mixed === null) { + return true; + } else if (typeof mixed === 'string') { + return true; + } else if (typeof mixed === 'boolean') { + return true; + } else if (typeof mixed === 'number') { + return true; + } else if (mixed instanceof Color) { + return true; + } else if (mixed instanceof Collator) { + return true; + } else if (mixed instanceof Formatted) { + return true; + } else if (mixed instanceof ResolvedImage) { + return true; + } else if (Array.isArray(mixed)) { + for (const item of mixed) { + if (!isValue(item)) { + return false; + } + } + return true; + } else if (typeof mixed === 'object') { + for (const key in mixed) { + if (!isValue(mixed[key])) { + return false; + } + } + return true; + } else { + return false; + } +} +function typeOf(value) { + if (value === null) { + return NullType; + } else if (typeof value === 'string') { + return StringType; + } else if (typeof value === 'boolean') { + return BooleanType; + } else if (typeof value === 'number') { + return NumberType; + } else if (value instanceof Color) { + return ColorType; + } else if (value instanceof Collator) { + return CollatorType; + } else if (value instanceof Formatted) { + return FormattedType; + } else if (value instanceof ResolvedImage) { + return ResolvedImageType; + } else if (Array.isArray(value)) { + const length = value.length; + let itemType; + for (const item of value) { + const t = typeOf(item); + if (!itemType) { + itemType = t; + } else if (itemType === t) { + continue; + } else { + itemType = ValueType; + break; + } + } + return array(itemType || ValueType, length); + } else { + return ObjectType; + } +} +function toString$1(value) { + const type = typeof value; + if (value === null) { + return ''; + } else if (type === 'string' || type === 'number' || type === 'boolean') { + return String(value); + } else if (value instanceof Color || value instanceof Formatted || value instanceof ResolvedImage) { + return value.toString(); + } else { + return JSON.stringify(value); + } +} + +class Literal { + constructor(type, value) { + this.type = type; + this.value = value; + } + static parse(args, context) { + if (args.length !== 2) + return context.error(`'literal' expression requires exactly one argument, but found ${ args.length - 1 } instead.`); + if (!isValue(args[1])) + return context.error(`invalid value`); + const value = args[1]; + let type = typeOf(value); + const expected = context.expectedType; + if (type.kind === 'array' && type.N === 0 && expected && expected.kind === 'array' && (typeof expected.N !== 'number' || expected.N === 0)) { + type = expected; + } + return new Literal(type, value); + } + evaluate() { + return this.value; + } + eachChild() { + } + outputDefined() { + return true; + } + serialize() { + if (this.type.kind === 'array' || this.type.kind === 'object') { + return [ + 'literal', + this.value + ]; + } else if (this.value instanceof Color) { + return ['rgba'].concat(this.value.toArray()); + } else if (this.value instanceof Formatted) { + return this.value.serialize(); + } else { + return this.value; + } + } +} + +class RuntimeError { + constructor(message) { + this.name = 'ExpressionEvaluationError'; + this.message = message; + } + toJSON() { + return this.message; + } +} + +const types = { + string: StringType, + number: NumberType, + boolean: BooleanType, + object: ObjectType +}; +class Assertion { + constructor(type, args) { + this.type = type; + this.args = args; + } + static parse(args, context) { + if (args.length < 2) + return context.error(`Expected at least one argument.`); + let i = 1; + let type; + const name = args[0]; + if (name === 'array') { + let itemType; + if (args.length > 2) { + const type = args[1]; + if (typeof type !== 'string' || !(type in types) || type === 'object') + return context.error('The item type argument of "array" must be one of string, number, boolean', 1); + itemType = types[type]; + i++; + } else { + itemType = ValueType; + } + let N; + if (args.length > 3) { + if (args[2] !== null && (typeof args[2] !== 'number' || args[2] < 0 || args[2] !== Math.floor(args[2]))) { + return context.error('The length argument to "array" must be a positive integer literal', 2); + } + N = args[2]; + i++; + } + type = array(itemType, N); + } else { + type = types[name]; + } + const parsed = []; + for (; i < args.length; i++) { + const input = context.parse(args[i], i, ValueType); + if (!input) + return null; + parsed.push(input); + } + return new Assertion(type, parsed); + } + evaluate(ctx) { + for (let i = 0; i < this.args.length; i++) { + const value = this.args[i].evaluate(ctx); + const error = checkSubtype(this.type, typeOf(value)); + if (!error) { + return value; + } else if (i === this.args.length - 1) { + throw new RuntimeError(`Expected value to be of type ${ toString(this.type) }, but found ${ toString(typeOf(value)) } instead.`); + } + } + return null; + } + eachChild(fn) { + this.args.forEach(fn); + } + outputDefined() { + return this.args.every(arg => arg.outputDefined()); + } + serialize() { + const type = this.type; + const serialized = [type.kind]; + if (type.kind === 'array') { + const itemType = type.itemType; + if (itemType.kind === 'string' || itemType.kind === 'number' || itemType.kind === 'boolean') { + serialized.push(itemType.kind); + const N = type.N; + if (typeof N === 'number' || this.args.length > 1) { + serialized.push(N); + } + } + } + return serialized.concat(this.args.map(arg => arg.serialize())); + } +} + +class FormatExpression { + constructor(sections) { + this.type = FormattedType; + this.sections = sections; + } + static parse(args, context) { + if (args.length < 2) { + return context.error(`Expected at least one argument.`); + } + const firstArg = args[1]; + if (!Array.isArray(firstArg) && typeof firstArg === 'object') { + return context.error(`First argument must be an image or text section.`); + } + const sections = []; + let nextTokenMayBeObject = false; + for (let i = 1; i <= args.length - 1; ++i) { + const arg = args[i]; + if (nextTokenMayBeObject && typeof arg === 'object' && !Array.isArray(arg)) { + nextTokenMayBeObject = false; + let scale = null; + if (arg['font-scale']) { + scale = context.parse(arg['font-scale'], 1, NumberType); + if (!scale) + return null; + } + let font = null; + if (arg['text-font']) { + font = context.parse(arg['text-font'], 1, array(StringType)); + if (!font) + return null; + } + let textColor = null; + if (arg['text-color']) { + textColor = context.parse(arg['text-color'], 1, ColorType); + if (!textColor) + return null; + } + const lastExpression = sections[sections.length - 1]; + lastExpression.scale = scale; + lastExpression.font = font; + lastExpression.textColor = textColor; + } else { + const content = context.parse(args[i], 1, ValueType); + if (!content) + return null; + const kind = content.type.kind; + if (kind !== 'string' && kind !== 'value' && kind !== 'null' && kind !== 'resolvedImage') + return context.error(`Formatted text type must be 'string', 'value', 'image' or 'null'.`); + nextTokenMayBeObject = true; + sections.push({ + content, + scale: null, + font: null, + textColor: null + }); + } + } + return new FormatExpression(sections); + } + evaluate(ctx) { + const evaluateSection = section => { + const evaluatedContent = section.content.evaluate(ctx); + if (typeOf(evaluatedContent) === ResolvedImageType) { + return new FormattedSection('', evaluatedContent, null, null, null); + } + return new FormattedSection(toString$1(evaluatedContent), null, section.scale ? section.scale.evaluate(ctx) : null, section.font ? section.font.evaluate(ctx).join(',') : null, section.textColor ? section.textColor.evaluate(ctx) : null); + }; + return new Formatted(this.sections.map(evaluateSection)); + } + eachChild(fn) { + for (const section of this.sections) { + fn(section.content); + if (section.scale) { + fn(section.scale); + } + if (section.font) { + fn(section.font); + } + if (section.textColor) { + fn(section.textColor); + } + } + } + outputDefined() { + return false; + } + serialize() { + const serialized = ['format']; + for (const section of this.sections) { + serialized.push(section.content.serialize()); + const options = {}; + if (section.scale) { + options['font-scale'] = section.scale.serialize(); + } + if (section.font) { + options['text-font'] = section.font.serialize(); + } + if (section.textColor) { + options['text-color'] = section.textColor.serialize(); + } + serialized.push(options); + } + return serialized; + } +} + +class ImageExpression { + constructor(input) { + this.type = ResolvedImageType; + this.input = input; + } + static parse(args, context) { + if (args.length !== 2) { + return context.error(`Expected two arguments.`); + } + const name = context.parse(args[1], 1, StringType); + if (!name) + return context.error(`No image name provided.`); + return new ImageExpression(name); + } + evaluate(ctx) { + const evaluatedImageName = this.input.evaluate(ctx); + const value = ResolvedImage.fromString(evaluatedImageName); + if (value && ctx.availableImages) + value.available = ctx.availableImages.indexOf(evaluatedImageName) > -1; + return value; + } + eachChild(fn) { + fn(this.input); + } + outputDefined() { + return false; + } + serialize() { + return [ + 'image', + this.input.serialize() + ]; + } +} + +const types$1 = { + 'to-boolean': BooleanType, + 'to-color': ColorType, + 'to-number': NumberType, + 'to-string': StringType +}; +class Coercion { + constructor(type, args) { + this.type = type; + this.args = args; + } + static parse(args, context) { + if (args.length < 2) + return context.error(`Expected at least one argument.`); + const name = args[0]; + if ((name === 'to-boolean' || name === 'to-string') && args.length !== 2) + return context.error(`Expected one argument.`); + const type = types$1[name]; + const parsed = []; + for (let i = 1; i < args.length; i++) { + const input = context.parse(args[i], i, ValueType); + if (!input) + return null; + parsed.push(input); + } + return new Coercion(type, parsed); + } + evaluate(ctx) { + if (this.type.kind === 'boolean') { + return Boolean(this.args[0].evaluate(ctx)); + } else if (this.type.kind === 'color') { + let input; + let error; + for (const arg of this.args) { + input = arg.evaluate(ctx); + error = null; + if (input instanceof Color) { + return input; + } else if (typeof input === 'string') { + const c = ctx.parseColor(input); + if (c) + return c; + } else if (Array.isArray(input)) { + if (input.length < 3 || input.length > 4) { + error = `Invalid rbga value ${ JSON.stringify(input) }: expected an array containing either three or four numeric values.`; + } else { + error = validateRGBA(input[0], input[1], input[2], input[3]); + } + if (!error) { + return new Color(input[0] / 255, input[1] / 255, input[2] / 255, input[3]); + } + } + } + throw new RuntimeError(error || `Could not parse color from value '${ typeof input === 'string' ? input : String(JSON.stringify(input)) }'`); + } else if (this.type.kind === 'number') { + let value = null; + for (const arg of this.args) { + value = arg.evaluate(ctx); + if (value === null) + return 0; + const num = Number(value); + if (isNaN(num)) + continue; + return num; + } + throw new RuntimeError(`Could not convert ${ JSON.stringify(value) } to number.`); + } else if (this.type.kind === 'formatted') { + return Formatted.fromString(toString$1(this.args[0].evaluate(ctx))); + } else if (this.type.kind === 'resolvedImage') { + return ResolvedImage.fromString(toString$1(this.args[0].evaluate(ctx))); + } else { + return toString$1(this.args[0].evaluate(ctx)); + } + } + eachChild(fn) { + this.args.forEach(fn); + } + outputDefined() { + return this.args.every(arg => arg.outputDefined()); + } + serialize() { + if (this.type.kind === 'formatted') { + return new FormatExpression([{ + content: this.args[0], + scale: null, + font: null, + textColor: null + }]).serialize(); + } + if (this.type.kind === 'resolvedImage') { + return new ImageExpression(this.args[0]).serialize(); + } + const serialized = [`to-${ this.type.kind }`]; + this.eachChild(child => { + serialized.push(child.serialize()); + }); + return serialized; + } +} + +const geometryTypes = [ + 'Unknown', + 'Point', + 'LineString', + 'Polygon' +]; +class EvaluationContext { + constructor() { + this.globals = null; + this.feature = null; + this.featureState = null; + this.formattedSection = null; + this._parseColorCache = {}; + this.availableImages = null; + this.canonical = null; + } + id() { + return this.feature && 'id' in this.feature ? this.feature.id : null; + } + geometryType() { + return this.feature ? typeof this.feature.type === 'number' ? geometryTypes[this.feature.type] : this.feature.type : null; + } + geometry() { + return this.feature && 'geometry' in this.feature ? this.feature.geometry : null; + } + canonicalID() { + return this.canonical; + } + properties() { + return this.feature && this.feature.properties || {}; + } + parseColor(input) { + let cached = this._parseColorCache[input]; + if (!cached) { + cached = this._parseColorCache[input] = Color.parse(input); + } + return cached; + } +} + +class CompoundExpression { + constructor(name, type, evaluate, args) { + this.name = name; + this.type = type; + this._evaluate = evaluate; + this.args = args; + } + evaluate(ctx) { + return this._evaluate(ctx, this.args); + } + eachChild(fn) { + this.args.forEach(fn); + } + outputDefined() { + return false; + } + serialize() { + return [this.name].concat(this.args.map(arg => arg.serialize())); + } + static parse(args, context) { + const op = args[0]; + const definition = CompoundExpression.definitions[op]; + if (!definition) { + return context.error(`Unknown expression "${ op }". If you wanted a literal array, use ["literal", [...]].`, 0); + } + const type = Array.isArray(definition) ? definition[0] : definition.type; + const availableOverloads = Array.isArray(definition) ? [[ + definition[1], + definition[2] + ]] : definition.overloads; + const overloads = availableOverloads.filter(([signature]) => !Array.isArray(signature) || signature.length === args.length - 1); + let signatureContext = null; + for (const [params, evaluate] of overloads) { + signatureContext = new ParsingContext(context.registry, context.path, null, context.scope); + const parsedArgs = []; + let argParseFailed = false; + for (let i = 1; i < args.length; i++) { + const arg = args[i]; + const expectedType = Array.isArray(params) ? params[i - 1] : params.type; + const parsed = signatureContext.parse(arg, 1 + parsedArgs.length, expectedType); + if (!parsed) { + argParseFailed = true; + break; + } + parsedArgs.push(parsed); + } + if (argParseFailed) { + continue; + } + if (Array.isArray(params)) { + if (params.length !== parsedArgs.length) { + signatureContext.error(`Expected ${ params.length } arguments, but found ${ parsedArgs.length } instead.`); + continue; + } + } + for (let i = 0; i < parsedArgs.length; i++) { + const expected = Array.isArray(params) ? params[i] : params.type; + const arg = parsedArgs[i]; + signatureContext.concat(i + 1).checkSubtype(expected, arg.type); + } + if (signatureContext.errors.length === 0) { + return new CompoundExpression(op, type, evaluate, parsedArgs); + } + } + if (overloads.length === 1) { + context.errors.push(...signatureContext.errors); + } else { + const expected = overloads.length ? overloads : availableOverloads; + const signatures = expected.map(([params]) => stringifySignature(params)).join(' | '); + const actualTypes = []; + for (let i = 1; i < args.length; i++) { + const parsed = context.parse(args[i], 1 + actualTypes.length); + if (!parsed) + return null; + actualTypes.push(toString(parsed.type)); + } + context.error(`Expected arguments of type ${ signatures }, but found (${ actualTypes.join(', ') }) instead.`); + } + return null; + } + static register(registry, definitions) { + CompoundExpression.definitions = definitions; + for (const name in definitions) { + registry[name] = CompoundExpression; + } + } +} +function stringifySignature(signature) { + if (Array.isArray(signature)) { + return `(${ signature.map(toString).join(', ') })`; + } else { + return `(${ toString(signature.type) }...)`; + } +} + +class CollatorExpression { + constructor(caseSensitive, diacriticSensitive, locale) { + this.type = CollatorType; + this.locale = locale; + this.caseSensitive = caseSensitive; + this.diacriticSensitive = diacriticSensitive; + } + static parse(args, context) { + if (args.length !== 2) + return context.error(`Expected one argument.`); + const options = args[1]; + if (typeof options !== 'object' || Array.isArray(options)) + return context.error(`Collator options argument must be an object.`); + const caseSensitive = context.parse(options['case-sensitive'] === undefined ? false : options['case-sensitive'], 1, BooleanType); + if (!caseSensitive) + return null; + const diacriticSensitive = context.parse(options['diacritic-sensitive'] === undefined ? false : options['diacritic-sensitive'], 1, BooleanType); + if (!diacriticSensitive) + return null; + let locale = null; + if (options['locale']) { + locale = context.parse(options['locale'], 1, StringType); + if (!locale) + return null; + } + return new CollatorExpression(caseSensitive, diacriticSensitive, locale); + } + evaluate(ctx) { + return new Collator(this.caseSensitive.evaluate(ctx), this.diacriticSensitive.evaluate(ctx), this.locale ? this.locale.evaluate(ctx) : null); + } + eachChild(fn) { + fn(this.caseSensitive); + fn(this.diacriticSensitive); + if (this.locale) { + fn(this.locale); + } + } + outputDefined() { + return false; + } + serialize() { + const options = {}; + options['case-sensitive'] = this.caseSensitive.serialize(); + options['diacritic-sensitive'] = this.diacriticSensitive.serialize(); + if (this.locale) { + options['locale'] = this.locale.serialize(); + } + return [ + 'collator', + options + ]; + } +} + +const EXTENT = 8192; +function updateBBox(bbox, coord) { + bbox[0] = Math.min(bbox[0], coord[0]); + bbox[1] = Math.min(bbox[1], coord[1]); + bbox[2] = Math.max(bbox[2], coord[0]); + bbox[3] = Math.max(bbox[3], coord[1]); +} +function mercatorXfromLng(lng) { + return (180 + lng) / 360; +} +function mercatorYfromLat(lat) { + return (180 - 180 / Math.PI * Math.log(Math.tan(Math.PI / 4 + lat * Math.PI / 360))) / 360; +} +function boxWithinBox(bbox1, bbox2) { + if (bbox1[0] <= bbox2[0]) + return false; + if (bbox1[2] >= bbox2[2]) + return false; + if (bbox1[1] <= bbox2[1]) + return false; + if (bbox1[3] >= bbox2[3]) + return false; + return true; +} +function getTileCoordinates(p, canonical) { + const x = mercatorXfromLng(p[0]); + const y = mercatorYfromLat(p[1]); + const tilesAtZoom = Math.pow(2, canonical.z); + return [ + Math.round(x * tilesAtZoom * EXTENT), + Math.round(y * tilesAtZoom * EXTENT) + ]; +} +function onBoundary(p, p1, p2) { + const x1 = p[0] - p1[0]; + const y1 = p[1] - p1[1]; + const x2 = p[0] - p2[0]; + const y2 = p[1] - p2[1]; + return x1 * y2 - x2 * y1 === 0 && x1 * x2 <= 0 && y1 * y2 <= 0; +} +function rayIntersect(p, p1, p2) { + return p1[1] > p[1] !== p2[1] > p[1] && p[0] < (p2[0] - p1[0]) * (p[1] - p1[1]) / (p2[1] - p1[1]) + p1[0]; +} +function pointWithinPolygon(point, rings) { + let inside = false; + for (let i = 0, len = rings.length; i < len; i++) { + const ring = rings[i]; + for (let j = 0, len2 = ring.length; j < len2 - 1; j++) { + if (onBoundary(point, ring[j], ring[j + 1])) + return false; + if (rayIntersect(point, ring[j], ring[j + 1])) + inside = !inside; + } + } + return inside; +} +function pointWithinPolygons(point, polygons) { + for (let i = 0; i < polygons.length; i++) { + if (pointWithinPolygon(point, polygons[i])) + return true; + } + return false; +} +function perp(v1, v2) { + return v1[0] * v2[1] - v1[1] * v2[0]; +} +function twoSided(p1, p2, q1, q2) { + const x1 = p1[0] - q1[0]; + const y1 = p1[1] - q1[1]; + const x2 = p2[0] - q1[0]; + const y2 = p2[1] - q1[1]; + const x3 = q2[0] - q1[0]; + const y3 = q2[1] - q1[1]; + const det1 = x1 * y3 - x3 * y1; + const det2 = x2 * y3 - x3 * y2; + if (det1 > 0 && det2 < 0 || det1 < 0 && det2 > 0) + return true; + return false; +} +function lineIntersectLine(a, b, c, d) { + const vectorP = [ + b[0] - a[0], + b[1] - a[1] + ]; + const vectorQ = [ + d[0] - c[0], + d[1] - c[1] + ]; + if (perp(vectorQ, vectorP) === 0) + return false; + if (twoSided(a, b, c, d) && twoSided(c, d, a, b)) + return true; + return false; +} +function lineIntersectPolygon(p1, p2, polygon) { + for (const ring of polygon) { + for (let j = 0; j < ring.length - 1; ++j) { + if (lineIntersectLine(p1, p2, ring[j], ring[j + 1])) { + return true; + } + } + } + return false; +} +function lineStringWithinPolygon(line, polygon) { + for (let i = 0; i < line.length; ++i) { + if (!pointWithinPolygon(line[i], polygon)) { + return false; + } + } + for (let i = 0; i < line.length - 1; ++i) { + if (lineIntersectPolygon(line[i], line[i + 1], polygon)) { + return false; + } + } + return true; +} +function lineStringWithinPolygons(line, polygons) { + for (let i = 0; i < polygons.length; i++) { + if (lineStringWithinPolygon(line, polygons[i])) + return true; + } + return false; +} +function getTilePolygon(coordinates, bbox, canonical) { + const polygon = []; + for (let i = 0; i < coordinates.length; i++) { + const ring = []; + for (let j = 0; j < coordinates[i].length; j++) { + const coord = getTileCoordinates(coordinates[i][j], canonical); + updateBBox(bbox, coord); + ring.push(coord); + } + polygon.push(ring); + } + return polygon; +} +function getTilePolygons(coordinates, bbox, canonical) { + const polygons = []; + for (let i = 0; i < coordinates.length; i++) { + const polygon = getTilePolygon(coordinates[i], bbox, canonical); + polygons.push(polygon); + } + return polygons; +} +function updatePoint(p, bbox, polyBBox, worldSize) { + if (p[0] < polyBBox[0] || p[0] > polyBBox[2]) { + const halfWorldSize = worldSize * 0.5; + let shift = p[0] - polyBBox[0] > halfWorldSize ? -worldSize : polyBBox[0] - p[0] > halfWorldSize ? worldSize : 0; + if (shift === 0) { + shift = p[0] - polyBBox[2] > halfWorldSize ? -worldSize : polyBBox[2] - p[0] > halfWorldSize ? worldSize : 0; + } + p[0] += shift; + } + updateBBox(bbox, p); +} +function resetBBox(bbox) { + bbox[0] = bbox[1] = Infinity; + bbox[2] = bbox[3] = -Infinity; +} +function getTilePoints(geometry, pointBBox, polyBBox, canonical) { + const worldSize = Math.pow(2, canonical.z) * EXTENT; + const shifts = [ + canonical.x * EXTENT, + canonical.y * EXTENT + ]; + const tilePoints = []; + for (const points of geometry) { + for (const point of points) { + const p = [ + point.x + shifts[0], + point.y + shifts[1] + ]; + updatePoint(p, pointBBox, polyBBox, worldSize); + tilePoints.push(p); + } + } + return tilePoints; +} +function getTileLines(geometry, lineBBox, polyBBox, canonical) { + const worldSize = Math.pow(2, canonical.z) * EXTENT; + const shifts = [ + canonical.x * EXTENT, + canonical.y * EXTENT + ]; + const tileLines = []; + for (const line of geometry) { + const tileLine = []; + for (const point of line) { + const p = [ + point.x + shifts[0], + point.y + shifts[1] + ]; + updateBBox(lineBBox, p); + tileLine.push(p); + } + tileLines.push(tileLine); + } + if (lineBBox[2] - lineBBox[0] <= worldSize / 2) { + resetBBox(lineBBox); + for (const line of tileLines) { + for (const p of line) { + updatePoint(p, lineBBox, polyBBox, worldSize); + } + } + } + return tileLines; +} +function pointsWithinPolygons(ctx, polygonGeometry) { + const pointBBox = [ + Infinity, + Infinity, + -Infinity, + -Infinity + ]; + const polyBBox = [ + Infinity, + Infinity, + -Infinity, + -Infinity + ]; + const canonical = ctx.canonicalID(); + if (polygonGeometry.type === 'Polygon') { + const tilePolygon = getTilePolygon(polygonGeometry.coordinates, polyBBox, canonical); + const tilePoints = getTilePoints(ctx.geometry(), pointBBox, polyBBox, canonical); + if (!boxWithinBox(pointBBox, polyBBox)) + return false; + for (const point of tilePoints) { + if (!pointWithinPolygon(point, tilePolygon)) + return false; + } + } + if (polygonGeometry.type === 'MultiPolygon') { + const tilePolygons = getTilePolygons(polygonGeometry.coordinates, polyBBox, canonical); + const tilePoints = getTilePoints(ctx.geometry(), pointBBox, polyBBox, canonical); + if (!boxWithinBox(pointBBox, polyBBox)) + return false; + for (const point of tilePoints) { + if (!pointWithinPolygons(point, tilePolygons)) + return false; + } + } + return true; +} +function linesWithinPolygons(ctx, polygonGeometry) { + const lineBBox = [ + Infinity, + Infinity, + -Infinity, + -Infinity + ]; + const polyBBox = [ + Infinity, + Infinity, + -Infinity, + -Infinity + ]; + const canonical = ctx.canonicalID(); + if (polygonGeometry.type === 'Polygon') { + const tilePolygon = getTilePolygon(polygonGeometry.coordinates, polyBBox, canonical); + const tileLines = getTileLines(ctx.geometry(), lineBBox, polyBBox, canonical); + if (!boxWithinBox(lineBBox, polyBBox)) + return false; + for (const line of tileLines) { + if (!lineStringWithinPolygon(line, tilePolygon)) + return false; + } + } + if (polygonGeometry.type === 'MultiPolygon') { + const tilePolygons = getTilePolygons(polygonGeometry.coordinates, polyBBox, canonical); + const tileLines = getTileLines(ctx.geometry(), lineBBox, polyBBox, canonical); + if (!boxWithinBox(lineBBox, polyBBox)) + return false; + for (const line of tileLines) { + if (!lineStringWithinPolygons(line, tilePolygons)) + return false; + } + } + return true; +} +class Within { + constructor(geojson, geometries) { + this.type = BooleanType; + this.geojson = geojson; + this.geometries = geometries; + } + static parse(args, context) { + if (args.length !== 2) + return context.error(`'within' expression requires exactly one argument, but found ${ args.length - 1 } instead.`); + if (isValue(args[1])) { + const geojson = args[1]; + if (geojson.type === 'FeatureCollection') { + for (let i = 0; i < geojson.features.length; ++i) { + const type = geojson.features[i].geometry.type; + if (type === 'Polygon' || type === 'MultiPolygon') { + return new Within(geojson, geojson.features[i].geometry); + } + } + } else if (geojson.type === 'Feature') { + const type = geojson.geometry.type; + if (type === 'Polygon' || type === 'MultiPolygon') { + return new Within(geojson, geojson.geometry); + } + } else if (geojson.type === 'Polygon' || geojson.type === 'MultiPolygon') { + return new Within(geojson, geojson); + } + } + return context.error(`'within' expression requires valid geojson object that contains polygon geometry type.`); + } + evaluate(ctx) { + if (ctx.geometry() != null && ctx.canonicalID() != null) { + if (ctx.geometryType() === 'Point') { + return pointsWithinPolygons(ctx, this.geometries); + } else if (ctx.geometryType() === 'LineString') { + return linesWithinPolygons(ctx, this.geometries); + } + } + return false; + } + eachChild() { + } + outputDefined() { + return true; + } + serialize() { + return [ + 'within', + this.geojson + ]; + } +} + +function isFeatureConstant(e) { + if (e instanceof CompoundExpression) { + if (e.name === 'get' && e.args.length === 1) { + return false; + } else if (e.name === 'feature-state') { + return false; + } else if (e.name === 'has' && e.args.length === 1) { + return false; + } else if (e.name === 'properties' || e.name === 'geometry-type' || e.name === 'id') { + return false; + } else if (/^filter-/.test(e.name)) { + return false; + } + } + if (e instanceof Within) { + return false; + } + let result = true; + e.eachChild(arg => { + if (result && !isFeatureConstant(arg)) { + result = false; + } + }); + return result; +} +function isStateConstant(e) { + if (e instanceof CompoundExpression) { + if (e.name === 'feature-state') { + return false; + } + } + let result = true; + e.eachChild(arg => { + if (result && !isStateConstant(arg)) { + result = false; + } + }); + return result; +} +function isGlobalPropertyConstant(e, properties) { + if (e instanceof CompoundExpression && properties.indexOf(e.name) >= 0) { + return false; + } + let result = true; + e.eachChild(arg => { + if (result && !isGlobalPropertyConstant(arg, properties)) { + result = false; + } + }); + return result; +} + +class Var { + constructor(name, boundExpression) { + this.type = boundExpression.type; + this.name = name; + this.boundExpression = boundExpression; + } + static parse(args, context) { + if (args.length !== 2 || typeof args[1] !== 'string') + return context.error(`'var' expression requires exactly one string literal argument.`); + const name = args[1]; + if (!context.scope.has(name)) { + return context.error(`Unknown variable "${ name }". Make sure "${ name }" has been bound in an enclosing "let" expression before using it.`, 1); + } + return new Var(name, context.scope.get(name)); + } + evaluate(ctx) { + return this.boundExpression.evaluate(ctx); + } + eachChild() { + } + outputDefined() { + return false; + } + serialize() { + return [ + 'var', + this.name + ]; + } +} + +class ParsingContext { + constructor(registry, path = [], expectedType, scope = new Scope(), errors = []) { + this.registry = registry; + this.path = path; + this.key = path.map(part => `[${ part }]`).join(''); + this.scope = scope; + this.errors = errors; + this.expectedType = expectedType; + } + parse(expr, index, expectedType, bindings, options = {}) { + if (index) { + return this.concat(index, expectedType, bindings)._parse(expr, options); + } + return this._parse(expr, options); + } + _parse(expr, options) { + if (expr === null || typeof expr === 'string' || typeof expr === 'boolean' || typeof expr === 'number') { + expr = [ + 'literal', + expr + ]; + } + function annotate(parsed, type, typeAnnotation) { + if (typeAnnotation === 'assert') { + return new Assertion(type, [parsed]); + } else if (typeAnnotation === 'coerce') { + return new Coercion(type, [parsed]); + } else { + return parsed; + } + } + if (Array.isArray(expr)) { + if (expr.length === 0) { + return this.error(`Expected an array with at least one element. If you wanted a literal array, use ["literal", []].`); + } + const op = expr[0]; + if (typeof op !== 'string') { + this.error(`Expression name must be a string, but found ${ typeof op } instead. If you wanted a literal array, use ["literal", [...]].`, 0); + return null; + } + const Expr = this.registry[op]; + if (Expr) { + let parsed = Expr.parse(expr, this); + if (!parsed) + return null; + if (this.expectedType) { + const expected = this.expectedType; + const actual = parsed.type; + if ((expected.kind === 'string' || expected.kind === 'number' || expected.kind === 'boolean' || expected.kind === 'object' || expected.kind === 'array') && actual.kind === 'value') { + parsed = annotate(parsed, expected, options.typeAnnotation || 'assert'); + } else if ((expected.kind === 'color' || expected.kind === 'formatted' || expected.kind === 'resolvedImage') && (actual.kind === 'value' || actual.kind === 'string')) { + parsed = annotate(parsed, expected, options.typeAnnotation || 'coerce'); + } else if (this.checkSubtype(expected, actual)) { + return null; + } + } + if (!(parsed instanceof Literal) && parsed.type.kind !== 'resolvedImage' && isConstant(parsed)) { + const ec = new EvaluationContext(); + try { + parsed = new Literal(parsed.type, parsed.evaluate(ec)); + } catch (e) { + this.error(e.message); + return null; + } + } + return parsed; + } + return this.error(`Unknown expression "${ op }". If you wanted a literal array, use ["literal", [...]].`, 0); + } else if (typeof expr === 'undefined') { + return this.error(`'undefined' value invalid. Use null instead.`); + } else if (typeof expr === 'object') { + return this.error(`Bare objects invalid. Use ["literal", {...}] instead.`); + } else { + return this.error(`Expected an array, but found ${ typeof expr } instead.`); + } + } + concat(index, expectedType, bindings) { + const path = typeof index === 'number' ? this.path.concat(index) : this.path; + const scope = bindings ? this.scope.concat(bindings) : this.scope; + return new ParsingContext(this.registry, path, expectedType || null, scope, this.errors); + } + error(error, ...keys) { + const key = `${ this.key }${ keys.map(k => `[${ k }]`).join('') }`; + this.errors.push(new ParsingError(key, error)); + } + checkSubtype(expected, t) { + const error = checkSubtype(expected, t); + if (error) + this.error(error); + return error; + } +} +function isConstant(expression) { + if (expression instanceof Var) { + return isConstant(expression.boundExpression); + } else if (expression instanceof CompoundExpression && expression.name === 'error') { + return false; + } else if (expression instanceof CollatorExpression) { + return false; + } else if (expression instanceof Within) { + return false; + } + const isTypeAnnotation = expression instanceof Coercion || expression instanceof Assertion; + let childrenConstant = true; + expression.eachChild(child => { + if (isTypeAnnotation) { + childrenConstant = childrenConstant && isConstant(child); + } else { + childrenConstant = childrenConstant && child instanceof Literal; + } + }); + if (!childrenConstant) { + return false; + } + return isFeatureConstant(expression) && isGlobalPropertyConstant(expression, [ + 'zoom', + 'heatmap-density', + 'line-progress', + 'sky-radial-progress', + 'accumulated', + 'is-supported-script' + ]); +} + +function findStopLessThanOrEqualTo(stops, input) { + const lastIndex = stops.length - 1; + let lowerIndex = 0; + let upperIndex = lastIndex; + let currentIndex = 0; + let currentValue, nextValue; + while (lowerIndex <= upperIndex) { + currentIndex = Math.floor((lowerIndex + upperIndex) / 2); + currentValue = stops[currentIndex]; + nextValue = stops[currentIndex + 1]; + if (currentValue <= input) { + if (currentIndex === lastIndex || input < nextValue) { + return currentIndex; + } + lowerIndex = currentIndex + 1; + } else if (currentValue > input) { + upperIndex = currentIndex - 1; + } else { + throw new RuntimeError('Input is not a number.'); + } + } + return 0; +} + +class Step { + constructor(type, input, stops) { + this.type = type; + this.input = input; + this.labels = []; + this.outputs = []; + for (const [label, expression] of stops) { + this.labels.push(label); + this.outputs.push(expression); + } + } + static parse(args, context) { + if (args.length - 1 < 4) { + return context.error(`Expected at least 4 arguments, but found only ${ args.length - 1 }.`); + } + if ((args.length - 1) % 2 !== 0) { + return context.error(`Expected an even number of arguments.`); + } + const input = context.parse(args[1], 1, NumberType); + if (!input) + return null; + const stops = []; + let outputType = null; + if (context.expectedType && context.expectedType.kind !== 'value') { + outputType = context.expectedType; + } + for (let i = 1; i < args.length; i += 2) { + const label = i === 1 ? -Infinity : args[i]; + const value = args[i + 1]; + const labelKey = i; + const valueKey = i + 1; + if (typeof label !== 'number') { + return context.error('Input/output pairs for "step" expressions must be defined using literal numeric values (not computed expressions) for the input values.', labelKey); + } + if (stops.length && stops[stops.length - 1][0] >= label) { + return context.error('Input/output pairs for "step" expressions must be arranged with input values in strictly ascending order.', labelKey); + } + const parsed = context.parse(value, valueKey, outputType); + if (!parsed) + return null; + outputType = outputType || parsed.type; + stops.push([ + label, + parsed + ]); + } + return new Step(outputType, input, stops); + } + evaluate(ctx) { + const labels = this.labels; + const outputs = this.outputs; + if (labels.length === 1) { + return outputs[0].evaluate(ctx); + } + const value = this.input.evaluate(ctx); + if (value <= labels[0]) { + return outputs[0].evaluate(ctx); + } + const stopCount = labels.length; + if (value >= labels[stopCount - 1]) { + return outputs[stopCount - 1].evaluate(ctx); + } + const index = findStopLessThanOrEqualTo(labels, value); + return outputs[index].evaluate(ctx); + } + eachChild(fn) { + fn(this.input); + for (const expression of this.outputs) { + fn(expression); + } + } + outputDefined() { + return this.outputs.every(out => out.outputDefined()); + } + serialize() { + const serialized = [ + 'step', + this.input.serialize() + ]; + for (let i = 0; i < this.labels.length; i++) { + if (i > 0) { + serialized.push(this.labels[i]); + } + serialized.push(this.outputs[i].serialize()); + } + return serialized; + } +} + +function number(a, b, t) { + return a * (1 - t) + b * t; +} +function color(from, to, t) { + return new Color(number(from.r, to.r, t), number(from.g, to.g, t), number(from.b, to.b, t), number(from.a, to.a, t)); +} +function array$1(from, to, t) { + return from.map((d, i) => { + return number(d, to[i], t); + }); +} + +var interpolate = /*#__PURE__*/Object.freeze({ +__proto__: null, +number: number, +color: color, +array: array$1 +}); + +const Xn = 0.95047, Yn = 1, Zn = 1.08883, t0 = 4 / 29, t1 = 6 / 29, t2 = 3 * t1 * t1, t3 = t1 * t1 * t1, deg2rad = Math.PI / 180, rad2deg = 180 / Math.PI; +function xyz2lab(t) { + return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0; +} +function lab2xyz(t) { + return t > t1 ? t * t * t : t2 * (t - t0); +} +function xyz2rgb(x) { + return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055); +} +function rgb2xyz(x) { + x /= 255; + return x <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4); +} +function rgbToLab(rgbColor) { + const b = rgb2xyz(rgbColor.r), a = rgb2xyz(rgbColor.g), l = rgb2xyz(rgbColor.b), x = xyz2lab((0.4124564 * b + 0.3575761 * a + 0.1804375 * l) / Xn), y = xyz2lab((0.2126729 * b + 0.7151522 * a + 0.072175 * l) / Yn), z = xyz2lab((0.0193339 * b + 0.119192 * a + 0.9503041 * l) / Zn); + return { + l: 116 * y - 16, + a: 500 * (x - y), + b: 200 * (y - z), + alpha: rgbColor.a + }; +} +function labToRgb(labColor) { + let y = (labColor.l + 16) / 116, x = isNaN(labColor.a) ? y : y + labColor.a / 500, z = isNaN(labColor.b) ? y : y - labColor.b / 200; + y = Yn * lab2xyz(y); + x = Xn * lab2xyz(x); + z = Zn * lab2xyz(z); + return new Color(xyz2rgb(3.2404542 * x - 1.5371385 * y - 0.4985314 * z), xyz2rgb(-0.969266 * x + 1.8760108 * y + 0.041556 * z), xyz2rgb(0.0556434 * x - 0.2040259 * y + 1.0572252 * z), labColor.alpha); +} +function interpolateLab(from, to, t) { + return { + l: number(from.l, to.l, t), + a: number(from.a, to.a, t), + b: number(from.b, to.b, t), + alpha: number(from.alpha, to.alpha, t) + }; +} +function rgbToHcl(rgbColor) { + const {l, a, b} = rgbToLab(rgbColor); + const h = Math.atan2(b, a) * rad2deg; + return { + h: h < 0 ? h + 360 : h, + c: Math.sqrt(a * a + b * b), + l, + alpha: rgbColor.a + }; +} +function hclToRgb(hclColor) { + const h = hclColor.h * deg2rad, c = hclColor.c, l = hclColor.l; + return labToRgb({ + l, + a: Math.cos(h) * c, + b: Math.sin(h) * c, + alpha: hclColor.alpha + }); +} +function interpolateHue(a, b, t) { + const d = b - a; + return a + t * (d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d); +} +function interpolateHcl(from, to, t) { + return { + h: interpolateHue(from.h, to.h, t), + c: number(from.c, to.c, t), + l: number(from.l, to.l, t), + alpha: number(from.alpha, to.alpha, t) + }; +} +const lab = { + forward: rgbToLab, + reverse: labToRgb, + interpolate: interpolateLab +}; +const hcl = { + forward: rgbToHcl, + reverse: hclToRgb, + interpolate: interpolateHcl +}; + +var colorSpaces = /*#__PURE__*/Object.freeze({ +__proto__: null, +lab: lab, +hcl: hcl +}); + +class Interpolate { + constructor(type, operator, interpolation, input, stops) { + this.type = type; + this.operator = operator; + this.interpolation = interpolation; + this.input = input; + this.labels = []; + this.outputs = []; + for (const [label, expression] of stops) { + this.labels.push(label); + this.outputs.push(expression); + } + } + static interpolationFactor(interpolation, input, lower, upper) { + let t = 0; + if (interpolation.name === 'exponential') { + t = exponentialInterpolation(input, interpolation.base, lower, upper); + } else if (interpolation.name === 'linear') { + t = exponentialInterpolation(input, 1, lower, upper); + } else if (interpolation.name === 'cubic-bezier') { + const c = interpolation.controlPoints; + const ub = new unitbezier(c[0], c[1], c[2], c[3]); + t = ub.solve(exponentialInterpolation(input, 1, lower, upper)); + } + return t; + } + static parse(args, context) { + let [operator, interpolation, input, ...rest] = args; + if (!Array.isArray(interpolation) || interpolation.length === 0) { + return context.error(`Expected an interpolation type expression.`, 1); + } + if (interpolation[0] === 'linear') { + interpolation = { name: 'linear' }; + } else if (interpolation[0] === 'exponential') { + const base = interpolation[1]; + if (typeof base !== 'number') + return context.error(`Exponential interpolation requires a numeric base.`, 1, 1); + interpolation = { + name: 'exponential', + base + }; + } else if (interpolation[0] === 'cubic-bezier') { + const controlPoints = interpolation.slice(1); + if (controlPoints.length !== 4 || controlPoints.some(t => typeof t !== 'number' || t < 0 || t > 1)) { + return context.error('Cubic bezier interpolation requires four numeric arguments with values between 0 and 1.', 1); + } + interpolation = { + name: 'cubic-bezier', + controlPoints: controlPoints + }; + } else { + return context.error(`Unknown interpolation type ${ String(interpolation[0]) }`, 1, 0); + } + if (args.length - 1 < 4) { + return context.error(`Expected at least 4 arguments, but found only ${ args.length - 1 }.`); + } + if ((args.length - 1) % 2 !== 0) { + return context.error(`Expected an even number of arguments.`); + } + input = context.parse(input, 2, NumberType); + if (!input) + return null; + const stops = []; + let outputType = null; + if (operator === 'interpolate-hcl' || operator === 'interpolate-lab') { + outputType = ColorType; + } else if (context.expectedType && context.expectedType.kind !== 'value') { + outputType = context.expectedType; + } + for (let i = 0; i < rest.length; i += 2) { + const label = rest[i]; + const value = rest[i + 1]; + const labelKey = i + 3; + const valueKey = i + 4; + if (typeof label !== 'number') { + return context.error('Input/output pairs for "interpolate" expressions must be defined using literal numeric values (not computed expressions) for the input values.', labelKey); + } + if (stops.length && stops[stops.length - 1][0] >= label) { + return context.error('Input/output pairs for "interpolate" expressions must be arranged with input values in strictly ascending order.', labelKey); + } + const parsed = context.parse(value, valueKey, outputType); + if (!parsed) + return null; + outputType = outputType || parsed.type; + stops.push([ + label, + parsed + ]); + } + if (outputType.kind !== 'number' && outputType.kind !== 'color' && !(outputType.kind === 'array' && outputType.itemType.kind === 'number' && typeof outputType.N === 'number')) { + return context.error(`Type ${ toString(outputType) } is not interpolatable.`); + } + return new Interpolate(outputType, operator, interpolation, input, stops); + } + evaluate(ctx) { + const labels = this.labels; + const outputs = this.outputs; + if (labels.length === 1) { + return outputs[0].evaluate(ctx); + } + const value = this.input.evaluate(ctx); + if (value <= labels[0]) { + return outputs[0].evaluate(ctx); + } + const stopCount = labels.length; + if (value >= labels[stopCount - 1]) { + return outputs[stopCount - 1].evaluate(ctx); + } + const index = findStopLessThanOrEqualTo(labels, value); + const lower = labels[index]; + const upper = labels[index + 1]; + const t = Interpolate.interpolationFactor(this.interpolation, value, lower, upper); + const outputLower = outputs[index].evaluate(ctx); + const outputUpper = outputs[index + 1].evaluate(ctx); + if (this.operator === 'interpolate') { + return interpolate[this.type.kind.toLowerCase()](outputLower, outputUpper, t); + } else if (this.operator === 'interpolate-hcl') { + return hcl.reverse(hcl.interpolate(hcl.forward(outputLower), hcl.forward(outputUpper), t)); + } else { + return lab.reverse(lab.interpolate(lab.forward(outputLower), lab.forward(outputUpper), t)); + } + } + eachChild(fn) { + fn(this.input); + for (const expression of this.outputs) { + fn(expression); + } + } + outputDefined() { + return this.outputs.every(out => out.outputDefined()); + } + serialize() { + let interpolation; + if (this.interpolation.name === 'linear') { + interpolation = ['linear']; + } else if (this.interpolation.name === 'exponential') { + if (this.interpolation.base === 1) { + interpolation = ['linear']; + } else { + interpolation = [ + 'exponential', + this.interpolation.base + ]; + } + } else { + interpolation = ['cubic-bezier'].concat(this.interpolation.controlPoints); + } + const serialized = [ + this.operator, + interpolation, + this.input.serialize() + ]; + for (let i = 0; i < this.labels.length; i++) { + serialized.push(this.labels[i], this.outputs[i].serialize()); + } + return serialized; + } +} +function exponentialInterpolation(input, base, lowerValue, upperValue) { + const difference = upperValue - lowerValue; + const progress = input - lowerValue; + if (difference === 0) { + return 0; + } else if (base === 1) { + return progress / difference; + } else { + return (Math.pow(base, progress) - 1) / (Math.pow(base, difference) - 1); + } +} + +class Coalesce { + constructor(type, args) { + this.type = type; + this.args = args; + } + static parse(args, context) { + if (args.length < 2) { + return context.error('Expectected at least one argument.'); + } + let outputType = null; + const expectedType = context.expectedType; + if (expectedType && expectedType.kind !== 'value') { + outputType = expectedType; + } + const parsedArgs = []; + for (const arg of args.slice(1)) { + const parsed = context.parse(arg, 1 + parsedArgs.length, outputType, undefined, { typeAnnotation: 'omit' }); + if (!parsed) + return null; + outputType = outputType || parsed.type; + parsedArgs.push(parsed); + } + const needsAnnotation = expectedType && parsedArgs.some(arg => checkSubtype(expectedType, arg.type)); + return needsAnnotation ? new Coalesce(ValueType, parsedArgs) : new Coalesce(outputType, parsedArgs); + } + evaluate(ctx) { + let result = null; + let argCount = 0; + let requestedImageName; + for (const arg of this.args) { + argCount++; + result = arg.evaluate(ctx); + if (result && result instanceof ResolvedImage && !result.available) { + if (!requestedImageName) { + requestedImageName = result.name; + } + result = null; + if (argCount === this.args.length) { + result = requestedImageName; + } + } + if (result !== null) + break; + } + return result; + } + eachChild(fn) { + this.args.forEach(fn); + } + outputDefined() { + return this.args.every(arg => arg.outputDefined()); + } + serialize() { + const serialized = ['coalesce']; + this.eachChild(child => { + serialized.push(child.serialize()); + }); + return serialized; + } +} + +class Let { + constructor(bindings, result) { + this.type = result.type; + this.bindings = [].concat(bindings); + this.result = result; + } + evaluate(ctx) { + return this.result.evaluate(ctx); + } + eachChild(fn) { + for (const binding of this.bindings) { + fn(binding[1]); + } + fn(this.result); + } + static parse(args, context) { + if (args.length < 4) + return context.error(`Expected at least 3 arguments, but found ${ args.length - 1 } instead.`); + const bindings = []; + for (let i = 1; i < args.length - 1; i += 2) { + const name = args[i]; + if (typeof name !== 'string') { + return context.error(`Expected string, but found ${ typeof name } instead.`, i); + } + if (/[^a-zA-Z0-9_]/.test(name)) { + return context.error(`Variable names must contain only alphanumeric characters or '_'.`, i); + } + const value = context.parse(args[i + 1], i + 1); + if (!value) + return null; + bindings.push([ + name, + value + ]); + } + const result = context.parse(args[args.length - 1], args.length - 1, context.expectedType, bindings); + if (!result) + return null; + return new Let(bindings, result); + } + outputDefined() { + return this.result.outputDefined(); + } + serialize() { + const serialized = ['let']; + for (const [name, expr] of this.bindings) { + serialized.push(name, expr.serialize()); + } + serialized.push(this.result.serialize()); + return serialized; + } +} + +class At { + constructor(type, index, input) { + this.type = type; + this.index = index; + this.input = input; + } + static parse(args, context) { + if (args.length !== 3) + return context.error(`Expected 2 arguments, but found ${ args.length - 1 } instead.`); + const index = context.parse(args[1], 1, NumberType); + const input = context.parse(args[2], 2, array(context.expectedType || ValueType)); + if (!index || !input) + return null; + const t = input.type; + return new At(t.itemType, index, input); + } + evaluate(ctx) { + const index = this.index.evaluate(ctx); + const array = this.input.evaluate(ctx); + if (index < 0) { + throw new RuntimeError(`Array index out of bounds: ${ index } < 0.`); + } + if (index >= array.length) { + throw new RuntimeError(`Array index out of bounds: ${ index } > ${ array.length - 1 }.`); + } + if (index !== Math.floor(index)) { + throw new RuntimeError(`Array index must be an integer, but found ${ index } instead.`); + } + return array[index]; + } + eachChild(fn) { + fn(this.index); + fn(this.input); + } + outputDefined() { + return false; + } + serialize() { + return [ + 'at', + this.index.serialize(), + this.input.serialize() + ]; + } +} + +class In { + constructor(needle, haystack) { + this.type = BooleanType; + this.needle = needle; + this.haystack = haystack; + } + static parse(args, context) { + if (args.length !== 3) { + return context.error(`Expected 2 arguments, but found ${ args.length - 1 } instead.`); + } + const needle = context.parse(args[1], 1, ValueType); + const haystack = context.parse(args[2], 2, ValueType); + if (!needle || !haystack) + return null; + if (!isValidType(needle.type, [ + BooleanType, + StringType, + NumberType, + NullType, + ValueType + ])) { + return context.error(`Expected first argument to be of type boolean, string, number or null, but found ${ toString(needle.type) } instead`); + } + return new In(needle, haystack); + } + evaluate(ctx) { + const needle = this.needle.evaluate(ctx); + const haystack = this.haystack.evaluate(ctx); + if (!haystack) + return false; + if (!isValidNativeType(needle, [ + 'boolean', + 'string', + 'number', + 'null' + ])) { + throw new RuntimeError(`Expected first argument to be of type boolean, string, number or null, but found ${ toString(typeOf(needle)) } instead.`); + } + if (!isValidNativeType(haystack, [ + 'string', + 'array' + ])) { + throw new RuntimeError(`Expected second argument to be of type array or string, but found ${ toString(typeOf(haystack)) } instead.`); + } + return haystack.indexOf(needle) >= 0; + } + eachChild(fn) { + fn(this.needle); + fn(this.haystack); + } + outputDefined() { + return true; + } + serialize() { + return [ + 'in', + this.needle.serialize(), + this.haystack.serialize() + ]; + } +} + +class IndexOf { + constructor(needle, haystack, fromIndex) { + this.type = NumberType; + this.needle = needle; + this.haystack = haystack; + this.fromIndex = fromIndex; + } + static parse(args, context) { + if (args.length <= 2 || args.length >= 5) { + return context.error(`Expected 3 or 4 arguments, but found ${ args.length - 1 } instead.`); + } + const needle = context.parse(args[1], 1, ValueType); + const haystack = context.parse(args[2], 2, ValueType); + if (!needle || !haystack) + return null; + if (!isValidType(needle.type, [ + BooleanType, + StringType, + NumberType, + NullType, + ValueType + ])) { + return context.error(`Expected first argument to be of type boolean, string, number or null, but found ${ toString(needle.type) } instead`); + } + if (args.length === 4) { + const fromIndex = context.parse(args[3], 3, NumberType); + if (!fromIndex) + return null; + return new IndexOf(needle, haystack, fromIndex); + } else { + return new IndexOf(needle, haystack); + } + } + evaluate(ctx) { + const needle = this.needle.evaluate(ctx); + const haystack = this.haystack.evaluate(ctx); + if (!isValidNativeType(needle, [ + 'boolean', + 'string', + 'number', + 'null' + ])) { + throw new RuntimeError(`Expected first argument to be of type boolean, string, number or null, but found ${ toString(typeOf(needle)) } instead.`); + } + if (!isValidNativeType(haystack, [ + 'string', + 'array' + ])) { + throw new RuntimeError(`Expected second argument to be of type array or string, but found ${ toString(typeOf(haystack)) } instead.`); + } + if (this.fromIndex) { + const fromIndex = this.fromIndex.evaluate(ctx); + return haystack.indexOf(needle, fromIndex); + } + return haystack.indexOf(needle); + } + eachChild(fn) { + fn(this.needle); + fn(this.haystack); + if (this.fromIndex) { + fn(this.fromIndex); + } + } + outputDefined() { + return false; + } + serialize() { + if (this.fromIndex != null && this.fromIndex !== undefined) { + const fromIndex = this.fromIndex.serialize(); + return [ + 'index-of', + this.needle.serialize(), + this.haystack.serialize(), + fromIndex + ]; + } + return [ + 'index-of', + this.needle.serialize(), + this.haystack.serialize() + ]; + } +} + +class Match { + constructor(inputType, outputType, input, cases, outputs, otherwise) { + this.inputType = inputType; + this.type = outputType; + this.input = input; + this.cases = cases; + this.outputs = outputs; + this.otherwise = otherwise; + } + static parse(args, context) { + if (args.length < 5) + return context.error(`Expected at least 4 arguments, but found only ${ args.length - 1 }.`); + if (args.length % 2 !== 1) + return context.error(`Expected an even number of arguments.`); + let inputType; + let outputType; + if (context.expectedType && context.expectedType.kind !== 'value') { + outputType = context.expectedType; + } + const cases = {}; + const outputs = []; + for (let i = 2; i < args.length - 1; i += 2) { + let labels = args[i]; + const value = args[i + 1]; + if (!Array.isArray(labels)) { + labels = [labels]; + } + const labelContext = context.concat(i); + if (labels.length === 0) { + return labelContext.error('Expected at least one branch label.'); + } + for (const label of labels) { + if (typeof label !== 'number' && typeof label !== 'string') { + return labelContext.error(`Branch labels must be numbers or strings.`); + } else if (typeof label === 'number' && Math.abs(label) > Number.MAX_SAFE_INTEGER) { + return labelContext.error(`Branch labels must be integers no larger than ${ Number.MAX_SAFE_INTEGER }.`); + } else if (typeof label === 'number' && Math.floor(label) !== label) { + return labelContext.error(`Numeric branch labels must be integer values.`); + } else if (!inputType) { + inputType = typeOf(label); + } else if (labelContext.checkSubtype(inputType, typeOf(label))) { + return null; + } + if (typeof cases[String(label)] !== 'undefined') { + return labelContext.error('Branch labels must be unique.'); + } + cases[String(label)] = outputs.length; + } + const result = context.parse(value, i, outputType); + if (!result) + return null; + outputType = outputType || result.type; + outputs.push(result); + } + const input = context.parse(args[1], 1, ValueType); + if (!input) + return null; + const otherwise = context.parse(args[args.length - 1], args.length - 1, outputType); + if (!otherwise) + return null; + if (input.type.kind !== 'value' && context.concat(1).checkSubtype(inputType, input.type)) { + return null; + } + return new Match(inputType, outputType, input, cases, outputs, otherwise); + } + evaluate(ctx) { + const input = this.input.evaluate(ctx); + const output = typeOf(input) === this.inputType && this.outputs[this.cases[input]] || this.otherwise; + return output.evaluate(ctx); + } + eachChild(fn) { + fn(this.input); + this.outputs.forEach(fn); + fn(this.otherwise); + } + outputDefined() { + return this.outputs.every(out => out.outputDefined()) && this.otherwise.outputDefined(); + } + serialize() { + const serialized = [ + 'match', + this.input.serialize() + ]; + const sortedLabels = Object.keys(this.cases).sort(); + const groupedByOutput = []; + const outputLookup = {}; + for (const label of sortedLabels) { + const outputIndex = outputLookup[this.cases[label]]; + if (outputIndex === undefined) { + outputLookup[this.cases[label]] = groupedByOutput.length; + groupedByOutput.push([ + this.cases[label], + [label] + ]); + } else { + groupedByOutput[outputIndex][1].push(label); + } + } + const coerceLabel = label => this.inputType.kind === 'number' ? Number(label) : label; + for (const [outputIndex, labels] of groupedByOutput) { + if (labels.length === 1) { + serialized.push(coerceLabel(labels[0])); + } else { + serialized.push(labels.map(coerceLabel)); + } + serialized.push(this.outputs[outputIndex].serialize()); + } + serialized.push(this.otherwise.serialize()); + return serialized; + } +} + +class Case { + constructor(type, branches, otherwise) { + this.type = type; + this.branches = branches; + this.otherwise = otherwise; + } + static parse(args, context) { + if (args.length < 4) + return context.error(`Expected at least 3 arguments, but found only ${ args.length - 1 }.`); + if (args.length % 2 !== 0) + return context.error(`Expected an odd number of arguments.`); + let outputType; + if (context.expectedType && context.expectedType.kind !== 'value') { + outputType = context.expectedType; + } + const branches = []; + for (let i = 1; i < args.length - 1; i += 2) { + const test = context.parse(args[i], i, BooleanType); + if (!test) + return null; + const result = context.parse(args[i + 1], i + 1, outputType); + if (!result) + return null; + branches.push([ + test, + result + ]); + outputType = outputType || result.type; + } + const otherwise = context.parse(args[args.length - 1], args.length - 1, outputType); + if (!otherwise) + return null; + return new Case(outputType, branches, otherwise); + } + evaluate(ctx) { + for (const [test, expression] of this.branches) { + if (test.evaluate(ctx)) { + return expression.evaluate(ctx); + } + } + return this.otherwise.evaluate(ctx); + } + eachChild(fn) { + for (const [test, expression] of this.branches) { + fn(test); + fn(expression); + } + fn(this.otherwise); + } + outputDefined() { + return this.branches.every(([_, out]) => out.outputDefined()) && this.otherwise.outputDefined(); + } + serialize() { + const serialized = ['case']; + this.eachChild(child => { + serialized.push(child.serialize()); + }); + return serialized; + } +} + +class Slice { + constructor(type, input, beginIndex, endIndex) { + this.type = type; + this.input = input; + this.beginIndex = beginIndex; + this.endIndex = endIndex; + } + static parse(args, context) { + if (args.length <= 2 || args.length >= 5) { + return context.error(`Expected 3 or 4 arguments, but found ${ args.length - 1 } instead.`); + } + const input = context.parse(args[1], 1, ValueType); + const beginIndex = context.parse(args[2], 2, NumberType); + if (!input || !beginIndex) + return null; + if (!isValidType(input.type, [ + array(ValueType), + StringType, + ValueType + ])) { + return context.error(`Expected first argument to be of type array or string, but found ${ toString(input.type) } instead`); + } + if (args.length === 4) { + const endIndex = context.parse(args[3], 3, NumberType); + if (!endIndex) + return null; + return new Slice(input.type, input, beginIndex, endIndex); + } else { + return new Slice(input.type, input, beginIndex); + } + } + evaluate(ctx) { + const input = this.input.evaluate(ctx); + const beginIndex = this.beginIndex.evaluate(ctx); + if (!isValidNativeType(input, [ + 'string', + 'array' + ])) { + throw new RuntimeError(`Expected first argument to be of type array or string, but found ${ toString(typeOf(input)) } instead.`); + } + if (this.endIndex) { + const endIndex = this.endIndex.evaluate(ctx); + return input.slice(beginIndex, endIndex); + } + return input.slice(beginIndex); + } + eachChild(fn) { + fn(this.input); + fn(this.beginIndex); + if (this.endIndex) { + fn(this.endIndex); + } + } + outputDefined() { + return false; + } + serialize() { + if (this.endIndex != null && this.endIndex !== undefined) { + const endIndex = this.endIndex.serialize(); + return [ + 'slice', + this.input.serialize(), + this.beginIndex.serialize(), + endIndex + ]; + } + return [ + 'slice', + this.input.serialize(), + this.beginIndex.serialize() + ]; + } +} + +function isComparableType(op, type) { + if (op === '==' || op === '!=') { + return type.kind === 'boolean' || type.kind === 'string' || type.kind === 'number' || type.kind === 'null' || type.kind === 'value'; + } else { + return type.kind === 'string' || type.kind === 'number' || type.kind === 'value'; + } +} +function eq(ctx, a, b) { + return a === b; +} +function neq(ctx, a, b) { + return a !== b; +} +function lt(ctx, a, b) { + return a < b; +} +function gt(ctx, a, b) { + return a > b; +} +function lteq(ctx, a, b) { + return a <= b; +} +function gteq(ctx, a, b) { + return a >= b; +} +function eqCollate(ctx, a, b, c) { + return c.compare(a, b) === 0; +} +function neqCollate(ctx, a, b, c) { + return !eqCollate(ctx, a, b, c); +} +function ltCollate(ctx, a, b, c) { + return c.compare(a, b) < 0; +} +function gtCollate(ctx, a, b, c) { + return c.compare(a, b) > 0; +} +function lteqCollate(ctx, a, b, c) { + return c.compare(a, b) <= 0; +} +function gteqCollate(ctx, a, b, c) { + return c.compare(a, b) >= 0; +} +function makeComparison(op, compareBasic, compareWithCollator) { + const isOrderComparison = op !== '==' && op !== '!='; + return class Comparison { + constructor(lhs, rhs, collator) { + this.type = BooleanType; + this.lhs = lhs; + this.rhs = rhs; + this.collator = collator; + this.hasUntypedArgument = lhs.type.kind === 'value' || rhs.type.kind === 'value'; + } + static parse(args, context) { + if (args.length !== 3 && args.length !== 4) + return context.error(`Expected two or three arguments.`); + const op = args[0]; + let lhs = context.parse(args[1], 1, ValueType); + if (!lhs) + return null; + if (!isComparableType(op, lhs.type)) { + return context.concat(1).error(`"${ op }" comparisons are not supported for type '${ toString(lhs.type) }'.`); + } + let rhs = context.parse(args[2], 2, ValueType); + if (!rhs) + return null; + if (!isComparableType(op, rhs.type)) { + return context.concat(2).error(`"${ op }" comparisons are not supported for type '${ toString(rhs.type) }'.`); + } + if (lhs.type.kind !== rhs.type.kind && lhs.type.kind !== 'value' && rhs.type.kind !== 'value') { + return context.error(`Cannot compare types '${ toString(lhs.type) }' and '${ toString(rhs.type) }'.`); + } + if (isOrderComparison) { + if (lhs.type.kind === 'value' && rhs.type.kind !== 'value') { + lhs = new Assertion(rhs.type, [lhs]); + } else if (lhs.type.kind !== 'value' && rhs.type.kind === 'value') { + rhs = new Assertion(lhs.type, [rhs]); + } + } + let collator = null; + if (args.length === 4) { + if (lhs.type.kind !== 'string' && rhs.type.kind !== 'string' && lhs.type.kind !== 'value' && rhs.type.kind !== 'value') { + return context.error(`Cannot use collator to compare non-string types.`); + } + collator = context.parse(args[3], 3, CollatorType); + if (!collator) + return null; + } + return new Comparison(lhs, rhs, collator); + } + evaluate(ctx) { + const lhs = this.lhs.evaluate(ctx); + const rhs = this.rhs.evaluate(ctx); + if (isOrderComparison && this.hasUntypedArgument) { + const lt = typeOf(lhs); + const rt = typeOf(rhs); + if (lt.kind !== rt.kind || !(lt.kind === 'string' || lt.kind === 'number')) { + throw new RuntimeError(`Expected arguments for "${ op }" to be (string, string) or (number, number), but found (${ lt.kind }, ${ rt.kind }) instead.`); + } + } + if (this.collator && !isOrderComparison && this.hasUntypedArgument) { + const lt = typeOf(lhs); + const rt = typeOf(rhs); + if (lt.kind !== 'string' || rt.kind !== 'string') { + return compareBasic(ctx, lhs, rhs); + } + } + return this.collator ? compareWithCollator(ctx, lhs, rhs, this.collator.evaluate(ctx)) : compareBasic(ctx, lhs, rhs); + } + eachChild(fn) { + fn(this.lhs); + fn(this.rhs); + if (this.collator) { + fn(this.collator); + } + } + outputDefined() { + return true; + } + serialize() { + const serialized = [op]; + this.eachChild(child => { + serialized.push(child.serialize()); + }); + return serialized; + } + }; +} +const Equals = makeComparison('==', eq, eqCollate); +const NotEquals = makeComparison('!=', neq, neqCollate); +const LessThan = makeComparison('<', lt, ltCollate); +const GreaterThan = makeComparison('>', gt, gtCollate); +const LessThanOrEqual = makeComparison('<=', lteq, lteqCollate); +const GreaterThanOrEqual = makeComparison('>=', gteq, gteqCollate); + +class NumberFormat { + constructor(number, locale, currency, minFractionDigits, maxFractionDigits) { + this.type = StringType; + this.number = number; + this.locale = locale; + this.currency = currency; + this.minFractionDigits = minFractionDigits; + this.maxFractionDigits = maxFractionDigits; + } + static parse(args, context) { + if (args.length !== 3) + return context.error(`Expected two arguments.`); + const number = context.parse(args[1], 1, NumberType); + if (!number) + return null; + const options = args[2]; + if (typeof options !== 'object' || Array.isArray(options)) + return context.error(`NumberFormat options argument must be an object.`); + let locale = null; + if (options['locale']) { + locale = context.parse(options['locale'], 1, StringType); + if (!locale) + return null; + } + let currency = null; + if (options['currency']) { + currency = context.parse(options['currency'], 1, StringType); + if (!currency) + return null; + } + let minFractionDigits = null; + if (options['min-fraction-digits']) { + minFractionDigits = context.parse(options['min-fraction-digits'], 1, NumberType); + if (!minFractionDigits) + return null; + } + let maxFractionDigits = null; + if (options['max-fraction-digits']) { + maxFractionDigits = context.parse(options['max-fraction-digits'], 1, NumberType); + if (!maxFractionDigits) + return null; + } + return new NumberFormat(number, locale, currency, minFractionDigits, maxFractionDigits); + } + evaluate(ctx) { + return new Intl.NumberFormat(this.locale ? this.locale.evaluate(ctx) : [], { + style: this.currency ? 'currency' : 'decimal', + currency: this.currency ? this.currency.evaluate(ctx) : undefined, + minimumFractionDigits: this.minFractionDigits ? this.minFractionDigits.evaluate(ctx) : undefined, + maximumFractionDigits: this.maxFractionDigits ? this.maxFractionDigits.evaluate(ctx) : undefined + }).format(this.number.evaluate(ctx)); + } + eachChild(fn) { + fn(this.number); + if (this.locale) { + fn(this.locale); + } + if (this.currency) { + fn(this.currency); + } + if (this.minFractionDigits) { + fn(this.minFractionDigits); + } + if (this.maxFractionDigits) { + fn(this.maxFractionDigits); + } + } + outputDefined() { + return false; + } + serialize() { + const options = {}; + if (this.locale) { + options['locale'] = this.locale.serialize(); + } + if (this.currency) { + options['currency'] = this.currency.serialize(); + } + if (this.minFractionDigits) { + options['min-fraction-digits'] = this.minFractionDigits.serialize(); + } + if (this.maxFractionDigits) { + options['max-fraction-digits'] = this.maxFractionDigits.serialize(); + } + return [ + 'number-format', + this.number.serialize(), + options + ]; + } +} + +class Length { + constructor(input) { + this.type = NumberType; + this.input = input; + } + static parse(args, context) { + if (args.length !== 2) + return context.error(`Expected 1 argument, but found ${ args.length - 1 } instead.`); + const input = context.parse(args[1], 1); + if (!input) + return null; + if (input.type.kind !== 'array' && input.type.kind !== 'string' && input.type.kind !== 'value') + return context.error(`Expected argument of type string or array, but found ${ toString(input.type) } instead.`); + return new Length(input); + } + evaluate(ctx) { + const input = this.input.evaluate(ctx); + if (typeof input === 'string') { + return input.length; + } else if (Array.isArray(input)) { + return input.length; + } else { + throw new RuntimeError(`Expected value to be of type string or array, but found ${ toString(typeOf(input)) } instead.`); + } + } + eachChild(fn) { + fn(this.input); + } + outputDefined() { + return false; + } + serialize() { + const serialized = ['length']; + this.eachChild(child => { + serialized.push(child.serialize()); + }); + return serialized; + } +} + +const expressions = { + '==': Equals, + '!=': NotEquals, + '>': GreaterThan, + '<': LessThan, + '>=': GreaterThanOrEqual, + '<=': LessThanOrEqual, + 'array': Assertion, + 'at': At, + 'boolean': Assertion, + 'case': Case, + 'coalesce': Coalesce, + 'collator': CollatorExpression, + 'format': FormatExpression, + 'image': ImageExpression, + 'in': In, + 'index-of': IndexOf, + 'interpolate': Interpolate, + 'interpolate-hcl': Interpolate, + 'interpolate-lab': Interpolate, + 'length': Length, + 'let': Let, + 'literal': Literal, + 'match': Match, + 'number': Assertion, + 'number-format': NumberFormat, + 'object': Assertion, + 'slice': Slice, + 'step': Step, + 'string': Assertion, + 'to-boolean': Coercion, + 'to-color': Coercion, + 'to-number': Coercion, + 'to-string': Coercion, + 'var': Var, + 'within': Within +}; +function rgba(ctx, [r, g, b, a]) { + r = r.evaluate(ctx); + g = g.evaluate(ctx); + b = b.evaluate(ctx); + const alpha = a ? a.evaluate(ctx) : 1; + const error = validateRGBA(r, g, b, alpha); + if (error) + throw new RuntimeError(error); + return new Color(r / 255 * alpha, g / 255 * alpha, b / 255 * alpha, alpha); +} +function has(key, obj) { + return key in obj; +} +function get(key, obj) { + const v = obj[key]; + return typeof v === 'undefined' ? null : v; +} +function binarySearch(v, a, i, j) { + while (i <= j) { + const m = i + j >> 1; + if (a[m] === v) + return true; + if (a[m] > v) + j = m - 1; + else + i = m + 1; + } + return false; +} +function varargs(type) { + return { type }; +} +CompoundExpression.register(expressions, { + 'error': [ + ErrorType, + [StringType], + (ctx, [v]) => { + throw new RuntimeError(v.evaluate(ctx)); + } + ], + 'typeof': [ + StringType, + [ValueType], + (ctx, [v]) => toString(typeOf(v.evaluate(ctx))) + ], + 'to-rgba': [ + array(NumberType, 4), + [ColorType], + (ctx, [v]) => { + return v.evaluate(ctx).toArray(); + } + ], + 'rgb': [ + ColorType, + [ + NumberType, + NumberType, + NumberType + ], + rgba + ], + 'rgba': [ + ColorType, + [ + NumberType, + NumberType, + NumberType, + NumberType + ], + rgba + ], + 'has': { + type: BooleanType, + overloads: [ + [ + [StringType], + (ctx, [key]) => has(key.evaluate(ctx), ctx.properties()) + ], + [ + [ + StringType, + ObjectType + ], + (ctx, [key, obj]) => has(key.evaluate(ctx), obj.evaluate(ctx)) + ] + ] + }, + 'get': { + type: ValueType, + overloads: [ + [ + [StringType], + (ctx, [key]) => get(key.evaluate(ctx), ctx.properties()) + ], + [ + [ + StringType, + ObjectType + ], + (ctx, [key, obj]) => get(key.evaluate(ctx), obj.evaluate(ctx)) + ] + ] + }, + 'feature-state': [ + ValueType, + [StringType], + (ctx, [key]) => get(key.evaluate(ctx), ctx.featureState || {}) + ], + 'properties': [ + ObjectType, + [], + ctx => ctx.properties() + ], + 'geometry-type': [ + StringType, + [], + ctx => ctx.geometryType() + ], + 'id': [ + ValueType, + [], + ctx => ctx.id() + ], + 'zoom': [ + NumberType, + [], + ctx => ctx.globals.zoom + ], + 'heatmap-density': [ + NumberType, + [], + ctx => ctx.globals.heatmapDensity || 0 + ], + 'line-progress': [ + NumberType, + [], + ctx => ctx.globals.lineProgress || 0 + ], + 'sky-radial-progress': [ + NumberType, + [], + ctx => ctx.globals.skyRadialProgress || 0 + ], + 'accumulated': [ + ValueType, + [], + ctx => ctx.globals.accumulated === undefined ? null : ctx.globals.accumulated + ], + '+': [ + NumberType, + varargs(NumberType), + (ctx, args) => { + let result = 0; + for (const arg of args) { + result += arg.evaluate(ctx); + } + return result; + } + ], + '*': [ + NumberType, + varargs(NumberType), + (ctx, args) => { + let result = 1; + for (const arg of args) { + result *= arg.evaluate(ctx); + } + return result; + } + ], + '-': { + type: NumberType, + overloads: [ + [ + [ + NumberType, + NumberType + ], + (ctx, [a, b]) => a.evaluate(ctx) - b.evaluate(ctx) + ], + [ + [NumberType], + (ctx, [a]) => -a.evaluate(ctx) + ] + ] + }, + '/': [ + NumberType, + [ + NumberType, + NumberType + ], + (ctx, [a, b]) => a.evaluate(ctx) / b.evaluate(ctx) + ], + '%': [ + NumberType, + [ + NumberType, + NumberType + ], + (ctx, [a, b]) => a.evaluate(ctx) % b.evaluate(ctx) + ], + 'ln2': [ + NumberType, + [], + () => Math.LN2 + ], + 'pi': [ + NumberType, + [], + () => Math.PI + ], + 'e': [ + NumberType, + [], + () => Math.E + ], + '^': [ + NumberType, + [ + NumberType, + NumberType + ], + (ctx, [b, e]) => Math.pow(b.evaluate(ctx), e.evaluate(ctx)) + ], + 'sqrt': [ + NumberType, + [NumberType], + (ctx, [x]) => Math.sqrt(x.evaluate(ctx)) + ], + 'log10': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.log(n.evaluate(ctx)) / Math.LN10 + ], + 'ln': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.log(n.evaluate(ctx)) + ], + 'log2': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.log(n.evaluate(ctx)) / Math.LN2 + ], + 'sin': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.sin(n.evaluate(ctx)) + ], + 'cos': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.cos(n.evaluate(ctx)) + ], + 'tan': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.tan(n.evaluate(ctx)) + ], + 'asin': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.asin(n.evaluate(ctx)) + ], + 'acos': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.acos(n.evaluate(ctx)) + ], + 'atan': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.atan(n.evaluate(ctx)) + ], + 'min': [ + NumberType, + varargs(NumberType), + (ctx, args) => Math.min(...args.map(arg => arg.evaluate(ctx))) + ], + 'max': [ + NumberType, + varargs(NumberType), + (ctx, args) => Math.max(...args.map(arg => arg.evaluate(ctx))) + ], + 'abs': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.abs(n.evaluate(ctx)) + ], + 'round': [ + NumberType, + [NumberType], + (ctx, [n]) => { + const v = n.evaluate(ctx); + return v < 0 ? -Math.round(-v) : Math.round(v); + } + ], + 'floor': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.floor(n.evaluate(ctx)) + ], + 'ceil': [ + NumberType, + [NumberType], + (ctx, [n]) => Math.ceil(n.evaluate(ctx)) + ], + 'filter-==': [ + BooleanType, + [ + StringType, + ValueType + ], + (ctx, [k, v]) => ctx.properties()[k.value] === v.value + ], + 'filter-id-==': [ + BooleanType, + [ValueType], + (ctx, [v]) => ctx.id() === v.value + ], + 'filter-type-==': [ + BooleanType, + [StringType], + (ctx, [v]) => ctx.geometryType() === v.value + ], + 'filter-<': [ + BooleanType, + [ + StringType, + ValueType + ], + (ctx, [k, v]) => { + const a = ctx.properties()[k.value]; + const b = v.value; + return typeof a === typeof b && a < b; + } + ], + 'filter-id-<': [ + BooleanType, + [ValueType], + (ctx, [v]) => { + const a = ctx.id(); + const b = v.value; + return typeof a === typeof b && a < b; + } + ], + 'filter->': [ + BooleanType, + [ + StringType, + ValueType + ], + (ctx, [k, v]) => { + const a = ctx.properties()[k.value]; + const b = v.value; + return typeof a === typeof b && a > b; + } + ], + 'filter-id->': [ + BooleanType, + [ValueType], + (ctx, [v]) => { + const a = ctx.id(); + const b = v.value; + return typeof a === typeof b && a > b; + } + ], + 'filter-<=': [ + BooleanType, + [ + StringType, + ValueType + ], + (ctx, [k, v]) => { + const a = ctx.properties()[k.value]; + const b = v.value; + return typeof a === typeof b && a <= b; + } + ], + 'filter-id-<=': [ + BooleanType, + [ValueType], + (ctx, [v]) => { + const a = ctx.id(); + const b = v.value; + return typeof a === typeof b && a <= b; + } + ], + 'filter->=': [ + BooleanType, + [ + StringType, + ValueType + ], + (ctx, [k, v]) => { + const a = ctx.properties()[k.value]; + const b = v.value; + return typeof a === typeof b && a >= b; + } + ], + 'filter-id->=': [ + BooleanType, + [ValueType], + (ctx, [v]) => { + const a = ctx.id(); + const b = v.value; + return typeof a === typeof b && a >= b; + } + ], + 'filter-has': [ + BooleanType, + [ValueType], + (ctx, [k]) => k.value in ctx.properties() + ], + 'filter-has-id': [ + BooleanType, + [], + ctx => ctx.id() !== null && ctx.id() !== undefined + ], + 'filter-type-in': [ + BooleanType, + [array(StringType)], + (ctx, [v]) => v.value.indexOf(ctx.geometryType()) >= 0 + ], + 'filter-id-in': [ + BooleanType, + [array(ValueType)], + (ctx, [v]) => v.value.indexOf(ctx.id()) >= 0 + ], + 'filter-in-small': [ + BooleanType, + [ + StringType, + array(ValueType) + ], + (ctx, [k, v]) => v.value.indexOf(ctx.properties()[k.value]) >= 0 + ], + 'filter-in-large': [ + BooleanType, + [ + StringType, + array(ValueType) + ], + (ctx, [k, v]) => binarySearch(ctx.properties()[k.value], v.value, 0, v.value.length - 1) + ], + 'all': { + type: BooleanType, + overloads: [ + [ + [ + BooleanType, + BooleanType + ], + (ctx, [a, b]) => a.evaluate(ctx) && b.evaluate(ctx) + ], + [ + varargs(BooleanType), + (ctx, args) => { + for (const arg of args) { + if (!arg.evaluate(ctx)) + return false; + } + return true; + } + ] + ] + }, + 'any': { + type: BooleanType, + overloads: [ + [ + [ + BooleanType, + BooleanType + ], + (ctx, [a, b]) => a.evaluate(ctx) || b.evaluate(ctx) + ], + [ + varargs(BooleanType), + (ctx, args) => { + for (const arg of args) { + if (arg.evaluate(ctx)) + return true; + } + return false; + } + ] + ] + }, + '!': [ + BooleanType, + [BooleanType], + (ctx, [b]) => !b.evaluate(ctx) + ], + 'is-supported-script': [ + BooleanType, + [StringType], + (ctx, [s]) => { + const isSupportedScript = ctx.globals && ctx.globals.isSupportedScript; + if (isSupportedScript) { + return isSupportedScript(s.evaluate(ctx)); + } + return true; + } + ], + 'upcase': [ + StringType, + [StringType], + (ctx, [s]) => s.evaluate(ctx).toUpperCase() + ], + 'downcase': [ + StringType, + [StringType], + (ctx, [s]) => s.evaluate(ctx).toLowerCase() + ], + 'concat': [ + StringType, + varargs(ValueType), + (ctx, args) => args.map(arg => toString$1(arg.evaluate(ctx))).join('') + ], + 'resolved-locale': [ + StringType, + [CollatorType], + (ctx, [collator]) => collator.evaluate(ctx).resolvedLocale() + ] +}); + +function success(value) { + return { + result: 'success', + value + }; +} +function error(value) { + return { + result: 'error', + value + }; +} + +function supportsPropertyExpression(spec) { + return spec['property-type'] === 'data-driven' || spec['property-type'] === 'cross-faded-data-driven'; +} +function supportsZoomExpression(spec) { + return !!spec.expression && spec.expression.parameters.indexOf('zoom') > -1; +} +function supportsInterpolation(spec) { + return !!spec.expression && spec.expression.interpolated; +} + +function getType(val) { + if (val instanceof Number) { + return 'number'; + } else if (val instanceof String) { + return 'string'; + } else if (val instanceof Boolean) { + return 'boolean'; + } else if (Array.isArray(val)) { + return 'array'; + } else if (val === null) { + return 'null'; + } else { + return typeof val; + } +} + +function isFunction(value) { + return typeof value === 'object' && value !== null && !Array.isArray(value); +} +function identityFunction(x) { + return x; +} +function createFunction(parameters, propertySpec) { + const isColor = propertySpec.type === 'color'; + const zoomAndFeatureDependent = parameters.stops && typeof parameters.stops[0][0] === 'object'; + const featureDependent = zoomAndFeatureDependent || parameters.property !== undefined; + const zoomDependent = zoomAndFeatureDependent || !featureDependent; + const type = parameters.type || (supportsInterpolation(propertySpec) ? 'exponential' : 'interval'); + if (isColor) { + parameters = extend$1({}, parameters); + if (parameters.stops) { + parameters.stops = parameters.stops.map(stop => { + return [ + stop[0], + Color.parse(stop[1]) + ]; + }); + } + if (parameters.default) { + parameters.default = Color.parse(parameters.default); + } else { + parameters.default = Color.parse(propertySpec.default); + } + } + if (parameters.colorSpace && parameters.colorSpace !== 'rgb' && !colorSpaces[parameters.colorSpace]) { + throw new Error(`Unknown color space: ${ parameters.colorSpace }`); + } + let innerFun; + let hashedStops; + let categoricalKeyType; + if (type === 'exponential') { + innerFun = evaluateExponentialFunction; + } else if (type === 'interval') { + innerFun = evaluateIntervalFunction; + } else if (type === 'categorical') { + innerFun = evaluateCategoricalFunction; + hashedStops = Object.create(null); + for (const stop of parameters.stops) { + hashedStops[stop[0]] = stop[1]; + } + categoricalKeyType = typeof parameters.stops[0][0]; + } else if (type === 'identity') { + innerFun = evaluateIdentityFunction; + } else { + throw new Error(`Unknown function type "${ type }"`); + } + if (zoomAndFeatureDependent) { + const featureFunctions = {}; + const zoomStops = []; + for (let s = 0; s < parameters.stops.length; s++) { + const stop = parameters.stops[s]; + const zoom = stop[0].zoom; + if (featureFunctions[zoom] === undefined) { + featureFunctions[zoom] = { + zoom, + type: parameters.type, + property: parameters.property, + default: parameters.default, + stops: [] + }; + zoomStops.push(zoom); + } + featureFunctions[zoom].stops.push([ + stop[0].value, + stop[1] + ]); + } + const featureFunctionStops = []; + for (const z of zoomStops) { + featureFunctionStops.push([ + featureFunctions[z].zoom, + createFunction(featureFunctions[z], propertySpec) + ]); + } + const interpolationType = { name: 'linear' }; + return { + kind: 'composite', + interpolationType, + interpolationFactor: Interpolate.interpolationFactor.bind(undefined, interpolationType), + zoomStops: featureFunctionStops.map(s => s[0]), + evaluate({zoom}, properties) { + return evaluateExponentialFunction({ + stops: featureFunctionStops, + base: parameters.base + }, propertySpec, zoom).evaluate(zoom, properties); + } + }; + } else if (zoomDependent) { + const interpolationType = type === 'exponential' ? { + name: 'exponential', + base: parameters.base !== undefined ? parameters.base : 1 + } : null; + return { + kind: 'camera', + interpolationType, + interpolationFactor: Interpolate.interpolationFactor.bind(undefined, interpolationType), + zoomStops: parameters.stops.map(s => s[0]), + evaluate: ({zoom}) => innerFun(parameters, propertySpec, zoom, hashedStops, categoricalKeyType) + }; + } else { + return { + kind: 'source', + evaluate(_, feature) { + const value = feature && feature.properties ? feature.properties[parameters.property] : undefined; + if (value === undefined) { + return coalesce(parameters.default, propertySpec.default); + } + return innerFun(parameters, propertySpec, value, hashedStops, categoricalKeyType); + } + }; + } +} +function coalesce(a, b, c) { + if (a !== undefined) + return a; + if (b !== undefined) + return b; + if (c !== undefined) + return c; +} +function evaluateCategoricalFunction(parameters, propertySpec, input, hashedStops, keyType) { + const evaluated = typeof input === keyType ? hashedStops[input] : undefined; + return coalesce(evaluated, parameters.default, propertySpec.default); +} +function evaluateIntervalFunction(parameters, propertySpec, input) { + if (getType(input) !== 'number') + return coalesce(parameters.default, propertySpec.default); + const n = parameters.stops.length; + if (n === 1) + return parameters.stops[0][1]; + if (input <= parameters.stops[0][0]) + return parameters.stops[0][1]; + if (input >= parameters.stops[n - 1][0]) + return parameters.stops[n - 1][1]; + const index = findStopLessThanOrEqualTo(parameters.stops.map(stop => stop[0]), input); + return parameters.stops[index][1]; +} +function evaluateExponentialFunction(parameters, propertySpec, input) { + const base = parameters.base !== undefined ? parameters.base : 1; + if (getType(input) !== 'number') + return coalesce(parameters.default, propertySpec.default); + const n = parameters.stops.length; + if (n === 1) + return parameters.stops[0][1]; + if (input <= parameters.stops[0][0]) + return parameters.stops[0][1]; + if (input >= parameters.stops[n - 1][0]) + return parameters.stops[n - 1][1]; + const index = findStopLessThanOrEqualTo(parameters.stops.map(stop => stop[0]), input); + const t = interpolationFactor(input, base, parameters.stops[index][0], parameters.stops[index + 1][0]); + const outputLower = parameters.stops[index][1]; + const outputUpper = parameters.stops[index + 1][1]; + let interp = interpolate[propertySpec.type] || identityFunction; + if (parameters.colorSpace && parameters.colorSpace !== 'rgb') { + const colorspace = colorSpaces[parameters.colorSpace]; + interp = (a, b) => colorspace.reverse(colorspace.interpolate(colorspace.forward(a), colorspace.forward(b), t)); + } + if (typeof outputLower.evaluate === 'function') { + return { + evaluate(...args) { + const evaluatedLower = outputLower.evaluate.apply(undefined, args); + const evaluatedUpper = outputUpper.evaluate.apply(undefined, args); + if (evaluatedLower === undefined || evaluatedUpper === undefined) { + return undefined; + } + return interp(evaluatedLower, evaluatedUpper, t); + } + }; + } + return interp(outputLower, outputUpper, t); +} +function evaluateIdentityFunction(parameters, propertySpec, input) { + if (propertySpec.type === 'color') { + input = Color.parse(input); + } else if (propertySpec.type === 'formatted') { + input = Formatted.fromString(input.toString()); + } else if (propertySpec.type === 'resolvedImage') { + input = ResolvedImage.fromString(input.toString()); + } else if (getType(input) !== propertySpec.type && (propertySpec.type !== 'enum' || !propertySpec.values[input])) { + input = undefined; + } + return coalesce(input, parameters.default, propertySpec.default); +} +function interpolationFactor(input, base, lowerValue, upperValue) { + const difference = upperValue - lowerValue; + const progress = input - lowerValue; + if (difference === 0) { + return 0; + } else if (base === 1) { + return progress / difference; + } else { + return (Math.pow(base, progress) - 1) / (Math.pow(base, difference) - 1); + } +} + +class StyleExpression { + constructor(expression, propertySpec) { + this.expression = expression; + this._warningHistory = {}; + this._evaluator = new EvaluationContext(); + this._defaultValue = propertySpec ? getDefaultValue(propertySpec) : null; + this._enumValues = propertySpec && propertySpec.type === 'enum' ? propertySpec.values : null; + } + evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection) { + this._evaluator.globals = globals; + this._evaluator.feature = feature; + this._evaluator.featureState = featureState; + this._evaluator.canonical = canonical; + this._evaluator.availableImages = availableImages || null; + this._evaluator.formattedSection = formattedSection; + return this.expression.evaluate(this._evaluator); + } + evaluate(globals, feature, featureState, canonical, availableImages, formattedSection) { + this._evaluator.globals = globals; + this._evaluator.feature = feature || null; + this._evaluator.featureState = featureState || null; + this._evaluator.canonical = canonical; + this._evaluator.availableImages = availableImages || null; + this._evaluator.formattedSection = formattedSection || null; + try { + const val = this.expression.evaluate(this._evaluator); + if (val === null || val === undefined || typeof val === 'number' && val !== val) { + return this._defaultValue; + } + if (this._enumValues && !(val in this._enumValues)) { + throw new RuntimeError(`Expected value to be one of ${ Object.keys(this._enumValues).map(v => JSON.stringify(v)).join(', ') }, but found ${ JSON.stringify(val) } instead.`); + } + return val; + } catch (e) { + if (!this._warningHistory[e.message]) { + this._warningHistory[e.message] = true; + if (typeof console !== 'undefined') { + console.warn(e.message); + } + } + return this._defaultValue; + } + } +} +function isExpression(expression) { + return Array.isArray(expression) && expression.length > 0 && typeof expression[0] === 'string' && expression[0] in expressions; +} +function createExpression(expression, propertySpec) { + const parser = new ParsingContext(expressions, [], propertySpec ? getExpectedType(propertySpec) : undefined); + const parsed = parser.parse(expression, undefined, undefined, undefined, propertySpec && propertySpec.type === 'string' ? { typeAnnotation: 'coerce' } : undefined); + if (!parsed) { + return error(parser.errors); + } + return success(new StyleExpression(parsed, propertySpec)); +} +class ZoomConstantExpression { + constructor(kind, expression) { + this.kind = kind; + this._styleExpression = expression; + this.isStateDependent = kind !== 'constant' && !isStateConstant(expression.expression); + } + evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection) { + return this._styleExpression.evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection); + } + evaluate(globals, feature, featureState, canonical, availableImages, formattedSection) { + return this._styleExpression.evaluate(globals, feature, featureState, canonical, availableImages, formattedSection); + } +} +class ZoomDependentExpression { + constructor(kind, expression, zoomStops, interpolationType) { + this.kind = kind; + this.zoomStops = zoomStops; + this._styleExpression = expression; + this.isStateDependent = kind !== 'camera' && !isStateConstant(expression.expression); + this.interpolationType = interpolationType; + } + evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection) { + return this._styleExpression.evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection); + } + evaluate(globals, feature, featureState, canonical, availableImages, formattedSection) { + return this._styleExpression.evaluate(globals, feature, featureState, canonical, availableImages, formattedSection); + } + interpolationFactor(input, lower, upper) { + if (this.interpolationType) { + return Interpolate.interpolationFactor(this.interpolationType, input, lower, upper); + } else { + return 0; + } + } +} +function createPropertyExpression(expression, propertySpec) { + expression = createExpression(expression, propertySpec); + if (expression.result === 'error') { + return expression; + } + const parsed = expression.value.expression; + const isFeatureConstant$1 = isFeatureConstant(parsed); + if (!isFeatureConstant$1 && !supportsPropertyExpression(propertySpec)) { + return error([new ParsingError('', 'data expressions not supported')]); + } + const isZoomConstant = isGlobalPropertyConstant(parsed, ['zoom']); + if (!isZoomConstant && !supportsZoomExpression(propertySpec)) { + return error([new ParsingError('', 'zoom expressions not supported')]); + } + const zoomCurve = findZoomCurve(parsed); + if (!zoomCurve && !isZoomConstant) { + return error([new ParsingError('', '"zoom" expression may only be used as input to a top-level "step" or "interpolate" expression.')]); + } else if (zoomCurve instanceof ParsingError) { + return error([zoomCurve]); + } else if (zoomCurve instanceof Interpolate && !supportsInterpolation(propertySpec)) { + return error([new ParsingError('', '"interpolate" expressions cannot be used with this property')]); + } + if (!zoomCurve) { + return success(isFeatureConstant$1 ? new ZoomConstantExpression('constant', expression.value) : new ZoomConstantExpression('source', expression.value)); + } + const interpolationType = zoomCurve instanceof Interpolate ? zoomCurve.interpolation : undefined; + return success(isFeatureConstant$1 ? new ZoomDependentExpression('camera', expression.value, zoomCurve.labels, interpolationType) : new ZoomDependentExpression('composite', expression.value, zoomCurve.labels, interpolationType)); +} +class StylePropertyFunction { + constructor(parameters, specification) { + this._parameters = parameters; + this._specification = specification; + extend$1(this, createFunction(this._parameters, this._specification)); + } + static deserialize(serialized) { + return new StylePropertyFunction(serialized._parameters, serialized._specification); + } + static serialize(input) { + return { + _parameters: input._parameters, + _specification: input._specification + }; + } +} +function normalizePropertyExpression(value, specification) { + if (isFunction(value)) { + return new StylePropertyFunction(value, specification); + } else if (isExpression(value)) { + const expression = createPropertyExpression(value, specification); + if (expression.result === 'error') { + throw new Error(expression.value.map(err => `${ err.key }: ${ err.message }`).join(', ')); + } + return expression.value; + } else { + let constant = value; + if (typeof value === 'string' && specification.type === 'color') { + constant = Color.parse(value); + } + return { + kind: 'constant', + evaluate: () => constant + }; + } +} +function findZoomCurve(expression) { + let result = null; + if (expression instanceof Let) { + result = findZoomCurve(expression.result); + } else if (expression instanceof Coalesce) { + for (const arg of expression.args) { + result = findZoomCurve(arg); + if (result) { + break; + } + } + } else if ((expression instanceof Step || expression instanceof Interpolate) && expression.input instanceof CompoundExpression && expression.input.name === 'zoom') { + result = expression; + } + if (result instanceof ParsingError) { + return result; + } + expression.eachChild(child => { + const childResult = findZoomCurve(child); + if (childResult instanceof ParsingError) { + result = childResult; + } else if (!result && childResult) { + result = new ParsingError('', '"zoom" expression may only be used as input to a top-level "step" or "interpolate" expression.'); + } else if (result && childResult && result !== childResult) { + result = new ParsingError('', 'Only one zoom-based "step" or "interpolate" subexpression may be used in an expression.'); + } + }); + return result; +} +function getExpectedType(spec) { + const types = { + color: ColorType, + string: StringType, + number: NumberType, + enum: StringType, + boolean: BooleanType, + formatted: FormattedType, + resolvedImage: ResolvedImageType + }; + if (spec.type === 'array') { + return array(types[spec.value] || ValueType, spec.length); + } + return types[spec.type]; +} +function getDefaultValue(spec) { + if (spec.type === 'color' && isFunction(spec.default)) { + return new Color(0, 0, 0, 0); + } else if (spec.type === 'color') { + return Color.parse(spec.default) || null; + } else if (spec.default === undefined) { + return null; + } else { + return spec.default; + } +} + +function validateObject(options) { + const key = options.key; + const object = options.value; + const elementSpecs = options.valueSpec || {}; + const elementValidators = options.objectElementValidators || {}; + const style = options.style; + const styleSpec = options.styleSpec; + let errors = []; + const type = getType(object); + if (type !== 'object') { + return [new ValidationError(key, object, `object expected, ${ type } found`)]; + } + for (const objectKey in object) { + const elementSpecKey = objectKey.split('.')[0]; + const elementSpec = elementSpecs[elementSpecKey] || elementSpecs['*']; + let validateElement; + if (elementValidators[elementSpecKey]) { + validateElement = elementValidators[elementSpecKey]; + } else if (elementSpecs[elementSpecKey]) { + validateElement = validate; + } else if (elementValidators['*']) { + validateElement = elementValidators['*']; + } else if (elementSpecs['*']) { + validateElement = validate; + } else { + errors.push(new ValidationError(key, object[objectKey], `unknown property "${ objectKey }"`)); + continue; + } + errors = errors.concat(validateElement({ + key: (key ? `${ key }.` : key) + objectKey, + value: object[objectKey], + valueSpec: elementSpec, + style, + styleSpec, + object, + objectKey + }, object)); + } + for (const elementSpecKey in elementSpecs) { + if (elementValidators[elementSpecKey]) { + continue; + } + if (elementSpecs[elementSpecKey].required && elementSpecs[elementSpecKey]['default'] === undefined && object[elementSpecKey] === undefined) { + errors.push(new ValidationError(key, object, `missing required property "${ elementSpecKey }"`)); + } + } + return errors; +} + +function validateArray(options) { + const array = options.value; + const arraySpec = options.valueSpec; + const style = options.style; + const styleSpec = options.styleSpec; + const key = options.key; + const validateArrayElement = options.arrayElementValidator || validate; + if (getType(array) !== 'array') { + return [new ValidationError(key, array, `array expected, ${ getType(array) } found`)]; + } + if (arraySpec.length && array.length !== arraySpec.length) { + return [new ValidationError(key, array, `array length ${ arraySpec.length } expected, length ${ array.length } found`)]; + } + if (arraySpec['min-length'] && array.length < arraySpec['min-length']) { + return [new ValidationError(key, array, `array length at least ${ arraySpec['min-length'] } expected, length ${ array.length } found`)]; + } + let arrayElementSpec = { + 'type': arraySpec.value, + 'values': arraySpec.values, + 'minimum': arraySpec.minimum, + 'maximum': arraySpec.maximum + }; + if (styleSpec.$version < 7) { + arrayElementSpec.function = arraySpec.function; + } + if (getType(arraySpec.value) === 'object') { + arrayElementSpec = arraySpec.value; + } + let errors = []; + for (let i = 0; i < array.length; i++) { + errors = errors.concat(validateArrayElement({ + array, + arrayIndex: i, + value: array[i], + valueSpec: arrayElementSpec, + style, + styleSpec, + key: `${ key }[${ i }]` + })); + } + return errors; +} + +function validateNumber(options) { + const key = options.key; + const value = options.value; + const valueSpec = options.valueSpec; + let type = getType(value); + if (type === 'number' && value !== value) { + type = 'NaN'; + } + if (type !== 'number') { + return [new ValidationError(key, value, `number expected, ${ type } found`)]; + } + if ('minimum' in valueSpec) { + let specMin = valueSpec.minimum; + if (getType(valueSpec.minimum) === 'array') { + const i = options.arrayIndex; + specMin = valueSpec.minimum[i]; + } + if (value < specMin) { + return [new ValidationError(key, value, `${ value } is less than the minimum value ${ specMin }`)]; + } + } + if ('maximum' in valueSpec) { + let specMax = valueSpec.maximum; + if (getType(valueSpec.maximum) === 'array') { + const i = options.arrayIndex; + specMax = valueSpec.maximum[i]; + } + if (value > specMax) { + return [new ValidationError(key, value, `${ value } is greater than the maximum value ${ specMax }`)]; + } + } + return []; +} + +function validateFunction(options) { + const functionValueSpec = options.valueSpec; + const functionType = unbundle(options.value.type); + let stopKeyType; + let stopDomainValues = {}; + let previousStopDomainValue; + let previousStopDomainZoom; + const isZoomFunction = functionType !== 'categorical' && options.value.property === undefined; + const isPropertyFunction = !isZoomFunction; + const isZoomAndPropertyFunction = getType(options.value.stops) === 'array' && getType(options.value.stops[0]) === 'array' && getType(options.value.stops[0][0]) === 'object'; + const errors = validateObject({ + key: options.key, + value: options.value, + valueSpec: options.styleSpec.function, + style: options.style, + styleSpec: options.styleSpec, + objectElementValidators: { + stops: validateFunctionStops, + default: validateFunctionDefault + } + }); + if (functionType === 'identity' && isZoomFunction) { + errors.push(new ValidationError(options.key, options.value, 'missing required property "property"')); + } + if (functionType !== 'identity' && !options.value.stops) { + errors.push(new ValidationError(options.key, options.value, 'missing required property "stops"')); + } + if (functionType === 'exponential' && options.valueSpec.expression && !supportsInterpolation(options.valueSpec)) { + errors.push(new ValidationError(options.key, options.value, 'exponential functions not supported')); + } + if (options.styleSpec.$version >= 8) { + if (isPropertyFunction && !supportsPropertyExpression(options.valueSpec)) { + errors.push(new ValidationError(options.key, options.value, 'property functions not supported')); + } else if (isZoomFunction && !supportsZoomExpression(options.valueSpec)) { + errors.push(new ValidationError(options.key, options.value, 'zoom functions not supported')); + } + } + if ((functionType === 'categorical' || isZoomAndPropertyFunction) && options.value.property === undefined) { + errors.push(new ValidationError(options.key, options.value, '"property" property is required')); + } + return errors; + function validateFunctionStops(options) { + if (functionType === 'identity') { + return [new ValidationError(options.key, options.value, 'identity function may not have a "stops" property')]; + } + let errors = []; + const value = options.value; + errors = errors.concat(validateArray({ + key: options.key, + value, + valueSpec: options.valueSpec, + style: options.style, + styleSpec: options.styleSpec, + arrayElementValidator: validateFunctionStop + })); + if (getType(value) === 'array' && value.length === 0) { + errors.push(new ValidationError(options.key, value, 'array must have at least one stop')); + } + return errors; + } + function validateFunctionStop(options) { + let errors = []; + const value = options.value; + const key = options.key; + if (getType(value) !== 'array') { + return [new ValidationError(key, value, `array expected, ${ getType(value) } found`)]; + } + if (value.length !== 2) { + return [new ValidationError(key, value, `array length 2 expected, length ${ value.length } found`)]; + } + if (isZoomAndPropertyFunction) { + if (getType(value[0]) !== 'object') { + return [new ValidationError(key, value, `object expected, ${ getType(value[0]) } found`)]; + } + if (value[0].zoom === undefined) { + return [new ValidationError(key, value, 'object stop key must have zoom')]; + } + if (value[0].value === undefined) { + return [new ValidationError(key, value, 'object stop key must have value')]; + } + if (previousStopDomainZoom && previousStopDomainZoom > unbundle(value[0].zoom)) { + return [new ValidationError(key, value[0].zoom, 'stop zoom values must appear in ascending order')]; + } + if (unbundle(value[0].zoom) !== previousStopDomainZoom) { + previousStopDomainZoom = unbundle(value[0].zoom); + previousStopDomainValue = undefined; + stopDomainValues = {}; + } + errors = errors.concat(validateObject({ + key: `${ key }[0]`, + value: value[0], + valueSpec: { zoom: {} }, + style: options.style, + styleSpec: options.styleSpec, + objectElementValidators: { + zoom: validateNumber, + value: validateStopDomainValue + } + })); + } else { + errors = errors.concat(validateStopDomainValue({ + key: `${ key }[0]`, + value: value[0], + valueSpec: {}, + style: options.style, + styleSpec: options.styleSpec + }, value)); + } + if (isExpression(deepUnbundle(value[1]))) { + return errors.concat([new ValidationError(`${ key }[1]`, value[1], 'expressions are not allowed in function stops.')]); + } + return errors.concat(validate({ + key: `${ key }[1]`, + value: value[1], + valueSpec: functionValueSpec, + style: options.style, + styleSpec: options.styleSpec + })); + } + function validateStopDomainValue(options, stop) { + const type = getType(options.value); + const value = unbundle(options.value); + const reportValue = options.value !== null ? options.value : stop; + if (!stopKeyType) { + stopKeyType = type; + } else if (type !== stopKeyType) { + return [new ValidationError(options.key, reportValue, `${ type } stop domain type must match previous stop domain type ${ stopKeyType }`)]; + } + if (type !== 'number' && type !== 'string' && type !== 'boolean') { + return [new ValidationError(options.key, reportValue, 'stop domain value must be a number, string, or boolean')]; + } + if (type !== 'number' && functionType !== 'categorical') { + let message = `number expected, ${ type } found`; + if (supportsPropertyExpression(functionValueSpec) && functionType === undefined) { + message += '\nIf you intended to use a categorical function, specify `"type": "categorical"`.'; + } + return [new ValidationError(options.key, reportValue, message)]; + } + if (functionType === 'categorical' && type === 'number' && (!isFinite(value) || Math.floor(value) !== value)) { + return [new ValidationError(options.key, reportValue, `integer expected, found ${ value }`)]; + } + if (functionType !== 'categorical' && type === 'number' && previousStopDomainValue !== undefined && value < previousStopDomainValue) { + return [new ValidationError(options.key, reportValue, 'stop domain values must appear in ascending order')]; + } else { + previousStopDomainValue = value; + } + if (functionType === 'categorical' && value in stopDomainValues) { + return [new ValidationError(options.key, reportValue, 'stop domain values must be unique')]; + } else { + stopDomainValues[value] = true; + } + return []; + } + function validateFunctionDefault(options) { + return validate({ + key: options.key, + value: options.value, + valueSpec: functionValueSpec, + style: options.style, + styleSpec: options.styleSpec + }); + } +} + +function validateExpression(options) { + const expression = (options.expressionContext === 'property' ? createPropertyExpression : createExpression)(deepUnbundle(options.value), options.valueSpec); + if (expression.result === 'error') { + return expression.value.map(error => { + return new ValidationError(`${ options.key }${ error.key }`, options.value, error.message); + }); + } + const expressionObj = expression.value.expression || expression.value._styleExpression.expression; + if (options.expressionContext === 'property' && options.propertyKey === 'text-font' && !expressionObj.outputDefined()) { + return [new ValidationError(options.key, options.value, `Invalid data expression for "${ options.propertyKey }". Output values must be contained as literals within the expression.`)]; + } + if (options.expressionContext === 'property' && options.propertyType === 'layout' && !isStateConstant(expressionObj)) { + return [new ValidationError(options.key, options.value, '"feature-state" data expressions are not supported with layout properties.')]; + } + if (options.expressionContext === 'filter' && !isStateConstant(expressionObj)) { + return [new ValidationError(options.key, options.value, '"feature-state" data expressions are not supported with filters.')]; + } + if (options.expressionContext && options.expressionContext.indexOf('cluster') === 0) { + if (!isGlobalPropertyConstant(expressionObj, [ + 'zoom', + 'feature-state' + ])) { + return [new ValidationError(options.key, options.value, '"zoom" and "feature-state" expressions are not supported with cluster properties.')]; + } + if (options.expressionContext === 'cluster-initial' && !isFeatureConstant(expressionObj)) { + return [new ValidationError(options.key, options.value, 'Feature data expressions are not supported with initial expression part of cluster properties.')]; + } + } + return []; +} + +function validateBoolean(options) { + const value = options.value; + const key = options.key; + const type = getType(value); + if (type !== 'boolean') { + return [new ValidationError(key, value, `boolean expected, ${ type } found`)]; + } + return []; +} + +function validateColor(options) { + const key = options.key; + const value = options.value; + const type = getType(value); + if (type !== 'string') { + return [new ValidationError(key, value, `color expected, ${ type } found`)]; + } + if (csscolorparser_1(value) === null) { + return [new ValidationError(key, value, `color expected, "${ value }" found`)]; + } + return []; +} + +function validateEnum(options) { + const key = options.key; + const value = options.value; + const valueSpec = options.valueSpec; + const errors = []; + if (Array.isArray(valueSpec.values)) { + if (valueSpec.values.indexOf(unbundle(value)) === -1) { + errors.push(new ValidationError(key, value, `expected one of [${ valueSpec.values.join(', ') }], ${ JSON.stringify(value) } found`)); + } + } else { + if (Object.keys(valueSpec.values).indexOf(unbundle(value)) === -1) { + errors.push(new ValidationError(key, value, `expected one of [${ Object.keys(valueSpec.values).join(', ') }], ${ JSON.stringify(value) } found`)); + } + } + return errors; +} + +function isExpressionFilter(filter) { + if (filter === true || filter === false) { + return true; + } + if (!Array.isArray(filter) || filter.length === 0) { + return false; + } + switch (filter[0]) { + case 'has': + return filter.length >= 2 && filter[1] !== '$id' && filter[1] !== '$type'; + case 'in': + return filter.length >= 3 && (typeof filter[1] !== 'string' || Array.isArray(filter[2])); + case '!in': + case '!has': + case 'none': + return false; + case '==': + case '!=': + case '>': + case '>=': + case '<': + case '<=': + return filter.length !== 3 || (Array.isArray(filter[1]) || Array.isArray(filter[2])); + case 'any': + case 'all': + for (const f of filter.slice(1)) { + if (!isExpressionFilter(f) && typeof f !== 'boolean') { + return false; + } + } + return true; + default: + return true; + } +} +const filterSpec = { + 'type': 'boolean', + 'default': false, + 'transition': false, + 'property-type': 'data-driven', + 'expression': { + 'interpolated': false, + 'parameters': [ + 'zoom', + 'feature' + ] + } +}; +function createFilter(filter) { + if (filter === null || filter === undefined) { + return { + filter: () => true, + needGeometry: false + }; + } + if (!isExpressionFilter(filter)) { + filter = convertFilter(filter); + } + const compiled = createExpression(filter, filterSpec); + if (compiled.result === 'error') { + throw new Error(compiled.value.map(err => `${ err.key }: ${ err.message }`).join(', ')); + } else { + const needGeometry = geometryNeeded(filter); + return { + filter: (globalProperties, feature, canonical) => compiled.value.evaluate(globalProperties, feature, {}, canonical), + needGeometry + }; + } +} +function compare(a, b) { + return a < b ? -1 : a > b ? 1 : 0; +} +function geometryNeeded(filter) { + if (!Array.isArray(filter)) + return false; + if (filter[0] === 'within') + return true; + for (let index = 1; index < filter.length; index++) { + if (geometryNeeded(filter[index])) + return true; + } + return false; +} +function convertFilter(filter) { + if (!filter) + return true; + const op = filter[0]; + if (filter.length <= 1) + return op !== 'any'; + const converted = op === '==' ? convertComparisonOp(filter[1], filter[2], '==') : op === '!=' ? convertNegation(convertComparisonOp(filter[1], filter[2], '==')) : op === '<' || op === '>' || op === '<=' || op === '>=' ? convertComparisonOp(filter[1], filter[2], op) : op === 'any' ? convertDisjunctionOp(filter.slice(1)) : op === 'all' ? ['all'].concat(filter.slice(1).map(convertFilter)) : op === 'none' ? ['all'].concat(filter.slice(1).map(convertFilter).map(convertNegation)) : op === 'in' ? convertInOp(filter[1], filter.slice(2)) : op === '!in' ? convertNegation(convertInOp(filter[1], filter.slice(2))) : op === 'has' ? convertHasOp(filter[1]) : op === '!has' ? convertNegation(convertHasOp(filter[1])) : op === 'within' ? filter : true; + return converted; +} +function convertComparisonOp(property, value, op) { + switch (property) { + case '$type': + return [ + `filter-type-${ op }`, + value + ]; + case '$id': + return [ + `filter-id-${ op }`, + value + ]; + default: + return [ + `filter-${ op }`, + property, + value + ]; + } +} +function convertDisjunctionOp(filters) { + return ['any'].concat(filters.map(convertFilter)); +} +function convertInOp(property, values) { + if (values.length === 0) { + return false; + } + switch (property) { + case '$type': + return [ + `filter-type-in`, + [ + 'literal', + values + ] + ]; + case '$id': + return [ + `filter-id-in`, + [ + 'literal', + values + ] + ]; + default: + if (values.length > 200 && !values.some(v => typeof v !== typeof values[0])) { + return [ + 'filter-in-large', + property, + [ + 'literal', + values.sort(compare) + ] + ]; + } else { + return [ + 'filter-in-small', + property, + [ + 'literal', + values + ] + ]; + } + } +} +function convertHasOp(property) { + switch (property) { + case '$type': + return true; + case '$id': + return [`filter-has-id`]; + default: + return [ + `filter-has`, + property + ]; + } +} +function convertNegation(filter) { + return [ + '!', + filter + ]; +} + +function validateFilter(options) { + if (isExpressionFilter(deepUnbundle(options.value))) { + return validateExpression(extend$1({}, options, { + expressionContext: 'filter', + valueSpec: { value: 'boolean' } + })); + } else { + return validateNonExpressionFilter(options); + } +} +function validateNonExpressionFilter(options) { + const value = options.value; + const key = options.key; + if (getType(value) !== 'array') { + return [new ValidationError(key, value, `array expected, ${ getType(value) } found`)]; + } + const styleSpec = options.styleSpec; + let type; + let errors = []; + if (value.length < 1) { + return [new ValidationError(key, value, 'filter array must have at least 1 element')]; + } + errors = errors.concat(validateEnum({ + key: `${ key }[0]`, + value: value[0], + valueSpec: styleSpec.filter_operator, + style: options.style, + styleSpec: options.styleSpec + })); + switch (unbundle(value[0])) { + case '<': + case '<=': + case '>': + case '>=': + if (value.length >= 2 && unbundle(value[1]) === '$type') { + errors.push(new ValidationError(key, value, `"$type" cannot be use with operator "${ value[0] }"`)); + } + case '==': + case '!=': + if (value.length !== 3) { + errors.push(new ValidationError(key, value, `filter array for operator "${ value[0] }" must have 3 elements`)); + } + case 'in': + case '!in': + if (value.length >= 2) { + type = getType(value[1]); + if (type !== 'string') { + errors.push(new ValidationError(`${ key }[1]`, value[1], `string expected, ${ type } found`)); + } + } + for (let i = 2; i < value.length; i++) { + type = getType(value[i]); + if (unbundle(value[1]) === '$type') { + errors = errors.concat(validateEnum({ + key: `${ key }[${ i }]`, + value: value[i], + valueSpec: styleSpec.geometry_type, + style: options.style, + styleSpec: options.styleSpec + })); + } else if (type !== 'string' && type !== 'number' && type !== 'boolean') { + errors.push(new ValidationError(`${ key }[${ i }]`, value[i], `string, number, or boolean expected, ${ type } found`)); + } + } + break; + case 'any': + case 'all': + case 'none': + for (let i = 1; i < value.length; i++) { + errors = errors.concat(validateNonExpressionFilter({ + key: `${ key }[${ i }]`, + value: value[i], + style: options.style, + styleSpec: options.styleSpec + })); + } + break; + case 'has': + case '!has': + type = getType(value[1]); + if (value.length !== 2) { + errors.push(new ValidationError(key, value, `filter array for "${ value[0] }" operator must have 2 elements`)); + } else if (type !== 'string') { + errors.push(new ValidationError(`${ key }[1]`, value[1], `string expected, ${ type } found`)); + } + break; + case 'within': + type = getType(value[1]); + if (value.length !== 2) { + errors.push(new ValidationError(key, value, `filter array for "${ value[0] }" operator must have 2 elements`)); + } else if (type !== 'object') { + errors.push(new ValidationError(`${ key }[1]`, value[1], `object expected, ${ type } found`)); + } + break; + } + return errors; +} + +function validateProperty(options, propertyType) { + const key = options.key; + const style = options.style; + const styleSpec = options.styleSpec; + const value = options.value; + const propertyKey = options.objectKey; + const layerSpec = styleSpec[`${ propertyType }_${ options.layerType }`]; + if (!layerSpec) + return []; + const transitionMatch = propertyKey.match(/^(.*)-transition$/); + if (propertyType === 'paint' && transitionMatch && layerSpec[transitionMatch[1]] && layerSpec[transitionMatch[1]].transition) { + return validate({ + key, + value, + valueSpec: styleSpec.transition, + style, + styleSpec + }); + } + const valueSpec = options.valueSpec || layerSpec[propertyKey]; + if (!valueSpec) { + return [new ValidationError(key, value, `unknown property "${ propertyKey }"`)]; + } + let tokenMatch; + if (getType(value) === 'string' && supportsPropertyExpression(valueSpec) && !valueSpec.tokens && (tokenMatch = /^{([^}]+)}$/.exec(value))) { + return [new ValidationError(key, value, `"${ propertyKey }" does not support interpolation syntax\n` + `Use an identity property function instead: \`{ "type": "identity", "property": ${ JSON.stringify(tokenMatch[1]) } }\`.`)]; + } + const errors = []; + if (options.layerType === 'symbol') { + if (propertyKey === 'text-field' && style && !style.glyphs) { + errors.push(new ValidationError(key, value, 'use of "text-field" requires a style "glyphs" property')); + } + if (propertyKey === 'text-font' && isFunction(deepUnbundle(value)) && unbundle(value.type) === 'identity') { + errors.push(new ValidationError(key, value, '"text-font" does not support identity functions')); + } + } + return errors.concat(validate({ + key: options.key, + value, + valueSpec, + style, + styleSpec, + expressionContext: 'property', + propertyType, + propertyKey + })); +} + +function validatePaintProperty(options) { + return validateProperty(options, 'paint'); +} + +function validateLayoutProperty(options) { + return validateProperty(options, 'layout'); +} + +function validateLayer(options) { + let errors = []; + const layer = options.value; + const key = options.key; + const style = options.style; + const styleSpec = options.styleSpec; + if (!layer.type && !layer.ref) { + errors.push(new ValidationError(key, layer, 'either "type" or "ref" is required')); + } + let type = unbundle(layer.type); + const ref = unbundle(layer.ref); + if (layer.id) { + const layerId = unbundle(layer.id); + for (let i = 0; i < options.arrayIndex; i++) { + const otherLayer = style.layers[i]; + if (unbundle(otherLayer.id) === layerId) { + errors.push(new ValidationError(key, layer.id, `duplicate layer id "${ layer.id }", previously used at line ${ otherLayer.id.__line__ }`)); + } + } + } + if ('ref' in layer) { + [ + 'type', + 'source', + 'source-layer', + 'filter', + 'layout' + ].forEach(p => { + if (p in layer) { + errors.push(new ValidationError(key, layer[p], `"${ p }" is prohibited for ref layers`)); + } + }); + let parent; + style.layers.forEach(layer => { + if (unbundle(layer.id) === ref) + parent = layer; + }); + if (!parent) { + errors.push(new ValidationError(key, layer.ref, `ref layer "${ ref }" not found`)); + } else if (parent.ref) { + errors.push(new ValidationError(key, layer.ref, 'ref cannot reference another ref layer')); + } else { + type = unbundle(parent.type); + } + } else if (!(type === 'background' || type === 'sky')) { + if (!layer.source) { + errors.push(new ValidationError(key, layer, 'missing required property "source"')); + } else { + const source = style.sources && style.sources[layer.source]; + const sourceType = source && unbundle(source.type); + if (!source) { + errors.push(new ValidationError(key, layer.source, `source "${ layer.source }" not found`)); + } else if (sourceType === 'vector' && type === 'raster') { + errors.push(new ValidationError(key, layer.source, `layer "${ layer.id }" requires a raster source`)); + } else if (sourceType === 'raster' && type !== 'raster') { + errors.push(new ValidationError(key, layer.source, `layer "${ layer.id }" requires a vector source`)); + } else if (sourceType === 'vector' && !layer['source-layer']) { + errors.push(new ValidationError(key, layer, `layer "${ layer.id }" must specify a "source-layer"`)); + } else if (sourceType === 'raster-dem' && type !== 'hillshade') { + errors.push(new ValidationError(key, layer.source, 'raster-dem source can only be used with layer type \'hillshade\'.')); + } else if (type === 'line' && layer.paint && layer.paint['line-gradient'] && (sourceType !== 'geojson' || !source.lineMetrics)) { + errors.push(new ValidationError(key, layer, `layer "${ layer.id }" specifies a line-gradient, which requires a GeoJSON source with \`lineMetrics\` enabled.`)); + } + } + } + errors = errors.concat(validateObject({ + key, + value: layer, + valueSpec: styleSpec.layer, + style: options.style, + styleSpec: options.styleSpec, + objectElementValidators: { + '*'() { + return []; + }, + type() { + return validate({ + key: `${ key }.type`, + value: layer.type, + valueSpec: styleSpec.layer.type, + style: options.style, + styleSpec: options.styleSpec, + object: layer, + objectKey: 'type' + }); + }, + filter: validateFilter, + layout(options) { + return validateObject({ + layer, + key: options.key, + value: options.value, + style: options.style, + styleSpec: options.styleSpec, + objectElementValidators: { + '*'(options) { + return validateLayoutProperty(extend$1({ layerType: type }, options)); + } + } + }); + }, + paint(options) { + return validateObject({ + layer, + key: options.key, + value: options.value, + style: options.style, + styleSpec: options.styleSpec, + objectElementValidators: { + '*'(options) { + return validatePaintProperty(extend$1({ layerType: type }, options)); + } + } + }); + } + } + })); + return errors; +} + +function validateString(options) { + const value = options.value; + const key = options.key; + const type = getType(value); + if (type !== 'string') { + return [new ValidationError(key, value, `string expected, ${ type } found`)]; + } + return []; +} + +const objectElementValidators = { promoteId: validatePromoteId }; +function validateSource(options) { + const value = options.value; + const key = options.key; + const styleSpec = options.styleSpec; + const style = options.style; + if (!value.type) { + return [new ValidationError(key, value, '"type" is required')]; + } + const type = unbundle(value.type); + let errors; + switch (type) { + case 'vector': + case 'raster': + case 'raster-dem': + errors = validateObject({ + key, + value, + valueSpec: styleSpec[`source_${ type.replace('-', '_') }`], + style: options.style, + styleSpec, + objectElementValidators + }); + return errors; + case 'geojson': + errors = validateObject({ + key, + value, + valueSpec: styleSpec.source_geojson, + style, + styleSpec, + objectElementValidators + }); + if (value.cluster) { + for (const prop in value.clusterProperties) { + const [operator, mapExpr] = value.clusterProperties[prop]; + const reduceExpr = typeof operator === 'string' ? [ + operator, + ['accumulated'], + [ + 'get', + prop + ] + ] : operator; + errors.push(...validateExpression({ + key: `${ key }.${ prop }.map`, + value: mapExpr, + expressionContext: 'cluster-map' + })); + errors.push(...validateExpression({ + key: `${ key }.${ prop }.reduce`, + value: reduceExpr, + expressionContext: 'cluster-reduce' + })); + } + } + return errors; + case 'video': + return validateObject({ + key, + value, + valueSpec: styleSpec.source_video, + style, + styleSpec + }); + case 'image': + return validateObject({ + key, + value, + valueSpec: styleSpec.source_image, + style, + styleSpec + }); + case 'canvas': + return [new ValidationError(key, null, `Please use runtime APIs to add canvas sources, rather than including them in stylesheets.`, 'source.canvas')]; + default: + return validateEnum({ + key: `${ key }.type`, + value: value.type, + valueSpec: { + values: [ + 'vector', + 'raster', + 'raster-dem', + 'geojson', + 'video', + 'image' + ] + }, + style, + styleSpec + }); + } +} +function validatePromoteId({key, value}) { + if (getType(value) === 'string') { + return validateString({ + key, + value + }); + } else { + const errors = []; + for (const prop in value) { + errors.push(...validateString({ + key: `${ key }.${ prop }`, + value: value[prop] + })); + } + return errors; + } +} + +function validateLight(options) { + const light = options.value; + const styleSpec = options.styleSpec; + const lightSpec = styleSpec.light; + const style = options.style; + let errors = []; + const rootType = getType(light); + if (light === undefined) { + return errors; + } else if (rootType !== 'object') { + errors = errors.concat([new ValidationError('light', light, `object expected, ${ rootType } found`)]); + return errors; + } + for (const key in light) { + const transitionMatch = key.match(/^(.*)-transition$/); + if (transitionMatch && lightSpec[transitionMatch[1]] && lightSpec[transitionMatch[1]].transition) { + errors = errors.concat(validate({ + key, + value: light[key], + valueSpec: styleSpec.transition, + style, + styleSpec + })); + } else if (lightSpec[key]) { + errors = errors.concat(validate({ + key, + value: light[key], + valueSpec: lightSpec[key], + style, + styleSpec + })); + } else { + errors = errors.concat([new ValidationError(key, light[key], `unknown property "${ key }"`)]); + } + } + return errors; +} + +function validateTerrain(options) { + const terrain = options.value; + const key = options.key; + const style = options.style; + const styleSpec = options.styleSpec; + const terrainSpec = styleSpec.terrain; + let errors = []; + const rootType = getType(terrain); + if (terrain === undefined) { + return errors; + } else if (rootType !== 'object') { + errors = errors.concat([new ValidationError('terrain', terrain, `object expected, ${ rootType } found`)]); + return errors; + } + for (const key in terrain) { + const transitionMatch = key.match(/^(.*)-transition$/); + if (transitionMatch && terrainSpec[transitionMatch[1]] && terrainSpec[transitionMatch[1]].transition) { + errors = errors.concat(validate({ + key, + value: terrain[key], + valueSpec: styleSpec.transition, + style, + styleSpec + })); + } else if (terrainSpec[key]) { + errors = errors.concat(validate({ + key, + value: terrain[key], + valueSpec: terrainSpec[key], + style, + styleSpec + })); + } else { + errors = errors.concat([new ValidationError(key, terrain[key], `unknown property "${ key }"`)]); + } + } + if (!terrain.source) { + errors.push(new ValidationError(key, terrain, `terrain is missing required property "source"`)); + } else { + const source = style.sources && style.sources[terrain.source]; + const sourceType = source && unbundle(source.type); + if (!source) { + errors.push(new ValidationError(key, terrain.source, `source "${ terrain.source }" not found`)); + } else if (sourceType !== 'raster-dem') { + errors.push(new ValidationError(key, terrain.source, `terrain cannot be used with a source of type ${ sourceType }, it only be used with a "raster-dem" source type`)); + } + } + return errors; +} + +function validateFormatted(options) { + if (validateString(options).length === 0) { + return []; + } + return validateExpression(options); +} + +function validateImage(options) { + if (validateString(options).length === 0) { + return []; + } + return validateExpression(options); +} + +const VALIDATORS = { + '*'() { + return []; + }, + 'array': validateArray, + 'boolean': validateBoolean, + 'number': validateNumber, + 'color': validateColor, + 'constants': validateConstants, + 'enum': validateEnum, + 'filter': validateFilter, + 'function': validateFunction, + 'layer': validateLayer, + 'object': validateObject, + 'source': validateSource, + 'light': validateLight, + 'terrain': validateTerrain, + 'string': validateString, + 'formatted': validateFormatted, + 'resolvedImage': validateImage +}; +function validate(options) { + const value = options.value; + const valueSpec = options.valueSpec; + const styleSpec = options.styleSpec; + if (valueSpec.expression && isFunction(unbundle(value))) { + return validateFunction(options); + } else if (valueSpec.expression && isExpression(deepUnbundle(value))) { + return validateExpression(options); + } else if (valueSpec.type && VALIDATORS[valueSpec.type]) { + return VALIDATORS[valueSpec.type](options); + } else { + const valid = validateObject(extend$1({}, options, { valueSpec: valueSpec.type ? styleSpec[valueSpec.type] : valueSpec })); + return valid; + } +} + +function validateGlyphsURL (options) { + const value = options.value; + const key = options.key; + const errors = validateString(options); + if (errors.length) + return errors; + if (value.indexOf('{fontstack}') === -1) { + errors.push(new ValidationError(key, value, '"glyphs" url must include a "{fontstack}" token')); + } + if (value.indexOf('{range}') === -1) { + errors.push(new ValidationError(key, value, '"glyphs" url must include a "{range}" token')); + } + return errors; +} + +function validateStyleMin(style, styleSpec = spec) { + let errors = []; + errors = errors.concat(validate({ + key: '', + value: style, + valueSpec: styleSpec.$root, + styleSpec, + style, + objectElementValidators: { + glyphs: validateGlyphsURL, + '*'() { + return []; + } + } + })); + if (style.constants) { + errors = errors.concat(validateConstants({ + key: 'constants', + value: style.constants, + style, + styleSpec + })); + } + return sortErrors(errors); +} +validateStyleMin.source = wrapCleanErrors(validateSource); +validateStyleMin.light = wrapCleanErrors(validateLight); +validateStyleMin.terrain = wrapCleanErrors(validateTerrain); +validateStyleMin.layer = wrapCleanErrors(validateLayer); +validateStyleMin.filter = wrapCleanErrors(validateFilter); +validateStyleMin.paintProperty = wrapCleanErrors(validatePaintProperty); +validateStyleMin.layoutProperty = wrapCleanErrors(validateLayoutProperty); +function sortErrors(errors) { + return [].concat(errors).sort((a, b) => { + return a.line - b.line; + }); +} +function wrapCleanErrors(inner) { + return function (...args) { + return sortErrors(inner.apply(this, args)); + }; +} + +const validateStyle = validateStyleMin; +const validateLight$1 = validateStyle.light; +const validatePaintProperty$1 = validateStyle.paintProperty; +const validateLayoutProperty$1 = validateStyle.layoutProperty; +function emitValidationErrors(emitter, errors) { + let hasErrors = false; + if (errors && errors.length) { + for (const error of errors) { + emitter.fire(new ErrorEvent(new Error(error.message))); + hasErrors = true; + } + } + return hasErrors; +} + +var gridIndex = GridIndex; +var NUM_PARAMS = 3; +function GridIndex(extent, n, padding) { + var cells = this.cells = []; + if (extent instanceof ArrayBuffer) { + this.arrayBuffer = extent; + var array = new Int32Array(this.arrayBuffer); + extent = array[0]; + n = array[1]; + padding = array[2]; + this.d = n + 2 * padding; + for (var k = 0; k < this.d * this.d; k++) { + var start = array[NUM_PARAMS + k]; + var end = array[NUM_PARAMS + k + 1]; + cells.push(start === end ? null : array.subarray(start, end)); + } + var keysOffset = array[NUM_PARAMS + cells.length]; + var bboxesOffset = array[NUM_PARAMS + cells.length + 1]; + this.keys = array.subarray(keysOffset, bboxesOffset); + this.bboxes = array.subarray(bboxesOffset); + this.insert = this._insertReadonly; + } else { + this.d = n + 2 * padding; + for (var i = 0; i < this.d * this.d; i++) { + cells.push([]); + } + this.keys = []; + this.bboxes = []; + } + this.n = n; + this.extent = extent; + this.padding = padding; + this.scale = n / extent; + this.uid = 0; + var p = padding / n * extent; + this.min = -p; + this.max = extent + p; +} +GridIndex.prototype.insert = function (key, x1, y1, x2, y2) { + this._forEachCell(x1, y1, x2, y2, this._insertCell, this.uid++); + this.keys.push(key); + this.bboxes.push(x1); + this.bboxes.push(y1); + this.bboxes.push(x2); + this.bboxes.push(y2); +}; +GridIndex.prototype._insertReadonly = function () { + throw 'Cannot insert into a GridIndex created from an ArrayBuffer.'; +}; +GridIndex.prototype._insertCell = function (x1, y1, x2, y2, cellIndex, uid) { + this.cells[cellIndex].push(uid); +}; +GridIndex.prototype.query = function (x1, y1, x2, y2, intersectionTest) { + var min = this.min; + var max = this.max; + if (x1 <= min && y1 <= min && max <= x2 && max <= y2 && !intersectionTest) { + return Array.prototype.slice.call(this.keys); + } else { + var result = []; + var seenUids = {}; + this._forEachCell(x1, y1, x2, y2, this._queryCell, result, seenUids, intersectionTest); + return result; + } +}; +GridIndex.prototype._queryCell = function (x1, y1, x2, y2, cellIndex, result, seenUids, intersectionTest) { + var cell = this.cells[cellIndex]; + if (cell !== null) { + var keys = this.keys; + var bboxes = this.bboxes; + for (var u = 0; u < cell.length; u++) { + var uid = cell[u]; + if (seenUids[uid] === undefined) { + var offset = uid * 4; + if (intersectionTest ? intersectionTest(bboxes[offset + 0], bboxes[offset + 1], bboxes[offset + 2], bboxes[offset + 3]) : x1 <= bboxes[offset + 2] && y1 <= bboxes[offset + 3] && x2 >= bboxes[offset + 0] && y2 >= bboxes[offset + 1]) { + seenUids[uid] = true; + result.push(keys[uid]); + } else { + seenUids[uid] = false; + } + } + } + } +}; +GridIndex.prototype._forEachCell = function (x1, y1, x2, y2, fn, arg1, arg2, intersectionTest) { + var cx1 = this._convertToCellCoord(x1); + var cy1 = this._convertToCellCoord(y1); + var cx2 = this._convertToCellCoord(x2); + var cy2 = this._convertToCellCoord(y2); + for (var x = cx1; x <= cx2; x++) { + for (var y = cy1; y <= cy2; y++) { + var cellIndex = this.d * y + x; + if (intersectionTest && !intersectionTest(this._convertFromCellCoord(x), this._convertFromCellCoord(y), this._convertFromCellCoord(x + 1), this._convertFromCellCoord(y + 1))) + continue; + if (fn.call(this, x1, y1, x2, y2, cellIndex, arg1, arg2, intersectionTest)) + return; + } + } +}; +GridIndex.prototype._convertFromCellCoord = function (x) { + return (x - this.padding) / this.scale; +}; +GridIndex.prototype._convertToCellCoord = function (x) { + return Math.max(0, Math.min(this.d - 1, Math.floor(x * this.scale) + this.padding)); +}; +GridIndex.prototype.toArrayBuffer = function () { + if (this.arrayBuffer) + return this.arrayBuffer; + var cells = this.cells; + var metadataLength = NUM_PARAMS + this.cells.length + 1 + 1; + var totalCellLength = 0; + for (var i = 0; i < this.cells.length; i++) { + totalCellLength += this.cells[i].length; + } + var array = new Int32Array(metadataLength + totalCellLength + this.keys.length + this.bboxes.length); + array[0] = this.extent; + array[1] = this.n; + array[2] = this.padding; + var offset = metadataLength; + for (var k = 0; k < cells.length; k++) { + var cell = cells[k]; + array[NUM_PARAMS + k] = offset; + array.set(cell, offset); + offset += cell.length; + } + array[NUM_PARAMS + cells.length] = offset; + array.set(this.keys, offset); + offset += this.keys.length; + array[NUM_PARAMS + cells.length + 1] = offset; + array.set(this.bboxes, offset); + offset += this.bboxes.length; + return array.buffer; +}; + +const {ImageData, ImageBitmap} = window$1; +const registry = {}; +function register(name, klass, options = {}) { + Object.defineProperty(klass, '_classRegistryKey', { + value: name, + writeable: false + }); + registry[name] = { + klass, + omit: options.omit || [], + shallow: options.shallow || [] + }; +} +register('Object', Object); +gridIndex.serialize = function serialize(grid, transferables) { + const buffer = grid.toArrayBuffer(); + if (transferables) { + transferables.push(buffer); + } + return { buffer }; +}; +gridIndex.deserialize = function deserialize(serialized) { + return new gridIndex(serialized.buffer); +}; +register('Grid', gridIndex); +register('Color', Color); +register('Error', Error); +register('ResolvedImage', ResolvedImage); +register('StylePropertyFunction', StylePropertyFunction); +register('StyleExpression', StyleExpression, { omit: ['_evaluator'] }); +register('ZoomDependentExpression', ZoomDependentExpression); +register('ZoomConstantExpression', ZoomConstantExpression); +register('CompoundExpression', CompoundExpression, { omit: ['_evaluate'] }); +for (const name in expressions) { + if (expressions[name]._classRegistryKey) + continue; + register(`Expression_${ name }`, expressions[name]); +} +function isArrayBuffer(val) { + return val && typeof ArrayBuffer !== 'undefined' && (val instanceof ArrayBuffer || val.constructor && val.constructor.name === 'ArrayBuffer'); +} +function isImageBitmap(val) { + return ImageBitmap && val instanceof ImageBitmap; +} +function serialize(input, transferables) { + if (input === null || input === undefined || typeof input === 'boolean' || typeof input === 'number' || typeof input === 'string' || input instanceof Boolean || input instanceof Number || input instanceof String || input instanceof Date || input instanceof RegExp) { + return input; + } + if (isArrayBuffer(input) || isImageBitmap(input)) { + if (transferables) { + transferables.push(input); + } + return input; + } + if (ArrayBuffer.isView(input)) { + const view = input; + if (transferables) { + transferables.push(view.buffer); + } + return view; + } + if (input instanceof ImageData) { + if (transferables) { + transferables.push(input.data.buffer); + } + return input; + } + if (Array.isArray(input)) { + const serialized = []; + for (const item of input) { + serialized.push(serialize(item, transferables)); + } + return serialized; + } + if (typeof input === 'object') { + const klass = input.constructor; + const name = klass._classRegistryKey; + if (!name) { + throw new Error(`can't serialize object of unregistered class`); + } + const properties = klass.serialize ? klass.serialize(input, transferables) : {}; + if (!klass.serialize) { + for (const key in input) { + if (!input.hasOwnProperty(key)) + continue; + if (registry[name].omit.indexOf(key) >= 0) + continue; + const property = input[key]; + properties[key] = registry[name].shallow.indexOf(key) >= 0 ? property : serialize(property, transferables); + } + if (input instanceof Error) { + properties.message = input.message; + } + } + if (properties.$name) { + throw new Error('$name property is reserved for worker serialization logic.'); + } + if (name !== 'Object') { + properties.$name = name; + } + return properties; + } + throw new Error(`can't serialize object of type ${ typeof input }`); +} +function deserialize(input) { + if (input === null || input === undefined || typeof input === 'boolean' || typeof input === 'number' || typeof input === 'string' || input instanceof Boolean || input instanceof Number || input instanceof String || input instanceof Date || input instanceof RegExp || isArrayBuffer(input) || isImageBitmap(input) || ArrayBuffer.isView(input) || input instanceof ImageData) { + return input; + } + if (Array.isArray(input)) { + return input.map(deserialize); + } + if (typeof input === 'object') { + const name = input.$name || 'Object'; + const {klass} = registry[name]; + if (!klass) { + throw new Error(`can't deserialize unregistered class ${ name }`); + } + if (klass.deserialize) { + return klass.deserialize(input); + } + const result = Object.create(klass.prototype); + for (const key of Object.keys(input)) { + if (key === '$name') + continue; + const value = input[key]; + result[key] = registry[name].shallow.indexOf(key) >= 0 ? value : deserialize(value); + } + return result; + } + throw new Error(`can't deserialize object of type ${ typeof input }`); +} + +class ZoomHistory { + constructor() { + this.first = true; + } + update(z, now) { + const floorZ = Math.floor(z); + if (this.first) { + this.first = false; + this.lastIntegerZoom = floorZ; + this.lastIntegerZoomTime = 0; + this.lastZoom = z; + this.lastFloorZoom = floorZ; + return true; + } + if (this.lastFloorZoom > floorZ) { + this.lastIntegerZoom = floorZ + 1; + this.lastIntegerZoomTime = now; + } else if (this.lastFloorZoom < floorZ) { + this.lastIntegerZoom = floorZ; + this.lastIntegerZoomTime = now; + } + if (z !== this.lastZoom) { + this.lastZoom = z; + this.lastFloorZoom = floorZ; + return true; + } + return false; + } +} + +const unicodeBlockLookup = { + 'Latin-1 Supplement': char => char >= 128 && char <= 255, + 'Arabic': char => char >= 1536 && char <= 1791, + 'Arabic Supplement': char => char >= 1872 && char <= 1919, + 'Arabic Extended-A': char => char >= 2208 && char <= 2303, + 'Hangul Jamo': char => char >= 4352 && char <= 4607, + 'Unified Canadian Aboriginal Syllabics': char => char >= 5120 && char <= 5759, + 'Khmer': char => char >= 6016 && char <= 6143, + 'Unified Canadian Aboriginal Syllabics Extended': char => char >= 6320 && char <= 6399, + 'General Punctuation': char => char >= 8192 && char <= 8303, + 'Letterlike Symbols': char => char >= 8448 && char <= 8527, + 'Number Forms': char => char >= 8528 && char <= 8591, + 'Miscellaneous Technical': char => char >= 8960 && char <= 9215, + 'Control Pictures': char => char >= 9216 && char <= 9279, + 'Optical Character Recognition': char => char >= 9280 && char <= 9311, + 'Enclosed Alphanumerics': char => char >= 9312 && char <= 9471, + 'Geometric Shapes': char => char >= 9632 && char <= 9727, + 'Miscellaneous Symbols': char => char >= 9728 && char <= 9983, + 'Miscellaneous Symbols and Arrows': char => char >= 11008 && char <= 11263, + 'CJK Radicals Supplement': char => char >= 11904 && char <= 12031, + 'Kangxi Radicals': char => char >= 12032 && char <= 12255, + 'Ideographic Description Characters': char => char >= 12272 && char <= 12287, + 'CJK Symbols and Punctuation': char => char >= 12288 && char <= 12351, + 'Hiragana': char => char >= 12352 && char <= 12447, + 'Katakana': char => char >= 12448 && char <= 12543, + 'Bopomofo': char => char >= 12544 && char <= 12591, + 'Hangul Compatibility Jamo': char => char >= 12592 && char <= 12687, + 'Kanbun': char => char >= 12688 && char <= 12703, + 'Bopomofo Extended': char => char >= 12704 && char <= 12735, + 'CJK Strokes': char => char >= 12736 && char <= 12783, + 'Katakana Phonetic Extensions': char => char >= 12784 && char <= 12799, + 'Enclosed CJK Letters and Months': char => char >= 12800 && char <= 13055, + 'CJK Compatibility': char => char >= 13056 && char <= 13311, + 'CJK Unified Ideographs Extension A': char => char >= 13312 && char <= 19903, + 'Yijing Hexagram Symbols': char => char >= 19904 && char <= 19967, + 'CJK Unified Ideographs': char => char >= 19968 && char <= 40959, + 'Yi Syllables': char => char >= 40960 && char <= 42127, + 'Yi Radicals': char => char >= 42128 && char <= 42191, + 'Hangul Jamo Extended-A': char => char >= 43360 && char <= 43391, + 'Hangul Syllables': char => char >= 44032 && char <= 55215, + 'Hangul Jamo Extended-B': char => char >= 55216 && char <= 55295, + 'Private Use Area': char => char >= 57344 && char <= 63743, + 'CJK Compatibility Ideographs': char => char >= 63744 && char <= 64255, + 'Arabic Presentation Forms-A': char => char >= 64336 && char <= 65023, + 'Vertical Forms': char => char >= 65040 && char <= 65055, + 'CJK Compatibility Forms': char => char >= 65072 && char <= 65103, + 'Small Form Variants': char => char >= 65104 && char <= 65135, + 'Arabic Presentation Forms-B': char => char >= 65136 && char <= 65279, + 'Halfwidth and Fullwidth Forms': char => char >= 65280 && char <= 65519 +}; + +function allowsVerticalWritingMode(chars) { + for (const char of chars) { + if (charHasUprightVerticalOrientation(char.charCodeAt(0))) + return true; + } + return false; +} +function allowsLetterSpacing(chars) { + for (const char of chars) { + if (!charAllowsLetterSpacing(char.charCodeAt(0))) + return false; + } + return true; +} +function charAllowsLetterSpacing(char) { + if (unicodeBlockLookup['Arabic'](char)) + return false; + if (unicodeBlockLookup['Arabic Supplement'](char)) + return false; + if (unicodeBlockLookup['Arabic Extended-A'](char)) + return false; + if (unicodeBlockLookup['Arabic Presentation Forms-A'](char)) + return false; + if (unicodeBlockLookup['Arabic Presentation Forms-B'](char)) + return false; + return true; +} +function charAllowsIdeographicBreaking(char) { + if (char < 11904) + return false; + if (unicodeBlockLookup['Bopomofo Extended'](char)) + return true; + if (unicodeBlockLookup['Bopomofo'](char)) + return true; + if (unicodeBlockLookup['CJK Compatibility Forms'](char)) + return true; + if (unicodeBlockLookup['CJK Compatibility Ideographs'](char)) + return true; + if (unicodeBlockLookup['CJK Compatibility'](char)) + return true; + if (unicodeBlockLookup['CJK Radicals Supplement'](char)) + return true; + if (unicodeBlockLookup['CJK Strokes'](char)) + return true; + if (unicodeBlockLookup['CJK Symbols and Punctuation'](char)) + return true; + if (unicodeBlockLookup['CJK Unified Ideographs Extension A'](char)) + return true; + if (unicodeBlockLookup['CJK Unified Ideographs'](char)) + return true; + if (unicodeBlockLookup['Enclosed CJK Letters and Months'](char)) + return true; + if (unicodeBlockLookup['Halfwidth and Fullwidth Forms'](char)) + return true; + if (unicodeBlockLookup['Hiragana'](char)) + return true; + if (unicodeBlockLookup['Ideographic Description Characters'](char)) + return true; + if (unicodeBlockLookup['Kangxi Radicals'](char)) + return true; + if (unicodeBlockLookup['Katakana Phonetic Extensions'](char)) + return true; + if (unicodeBlockLookup['Katakana'](char)) + return true; + if (unicodeBlockLookup['Vertical Forms'](char)) + return true; + if (unicodeBlockLookup['Yi Radicals'](char)) + return true; + if (unicodeBlockLookup['Yi Syllables'](char)) + return true; + return false; +} +function charHasUprightVerticalOrientation(char) { + if (char === 746 || char === 747) { + return true; + } + if (char < 4352) + return false; + if (unicodeBlockLookup['Bopomofo Extended'](char)) + return true; + if (unicodeBlockLookup['Bopomofo'](char)) + return true; + if (unicodeBlockLookup['CJK Compatibility Forms'](char)) { + if (!(char >= 65097 && char <= 65103)) { + return true; + } + } + if (unicodeBlockLookup['CJK Compatibility Ideographs'](char)) + return true; + if (unicodeBlockLookup['CJK Compatibility'](char)) + return true; + if (unicodeBlockLookup['CJK Radicals Supplement'](char)) + return true; + if (unicodeBlockLookup['CJK Strokes'](char)) + return true; + if (unicodeBlockLookup['CJK Symbols and Punctuation'](char)) { + if (!(char >= 12296 && char <= 12305) && !(char >= 12308 && char <= 12319) && char !== 12336) { + return true; + } + } + if (unicodeBlockLookup['CJK Unified Ideographs Extension A'](char)) + return true; + if (unicodeBlockLookup['CJK Unified Ideographs'](char)) + return true; + if (unicodeBlockLookup['Enclosed CJK Letters and Months'](char)) + return true; + if (unicodeBlockLookup['Hangul Compatibility Jamo'](char)) + return true; + if (unicodeBlockLookup['Hangul Jamo Extended-A'](char)) + return true; + if (unicodeBlockLookup['Hangul Jamo Extended-B'](char)) + return true; + if (unicodeBlockLookup['Hangul Jamo'](char)) + return true; + if (unicodeBlockLookup['Hangul Syllables'](char)) + return true; + if (unicodeBlockLookup['Hiragana'](char)) + return true; + if (unicodeBlockLookup['Ideographic Description Characters'](char)) + return true; + if (unicodeBlockLookup['Kanbun'](char)) + return true; + if (unicodeBlockLookup['Kangxi Radicals'](char)) + return true; + if (unicodeBlockLookup['Katakana Phonetic Extensions'](char)) + return true; + if (unicodeBlockLookup['Katakana'](char)) { + if (char !== 12540) { + return true; + } + } + if (unicodeBlockLookup['Halfwidth and Fullwidth Forms'](char)) { + if (char !== 65288 && char !== 65289 && char !== 65293 && !(char >= 65306 && char <= 65310) && char !== 65339 && char !== 65341 && char !== 65343 && !(char >= 65371 && char <= 65503) && char !== 65507 && !(char >= 65512 && char <= 65519)) { + return true; + } + } + if (unicodeBlockLookup['Small Form Variants'](char)) { + if (!(char >= 65112 && char <= 65118) && !(char >= 65123 && char <= 65126)) { + return true; + } + } + if (unicodeBlockLookup['Unified Canadian Aboriginal Syllabics'](char)) + return true; + if (unicodeBlockLookup['Unified Canadian Aboriginal Syllabics Extended'](char)) + return true; + if (unicodeBlockLookup['Vertical Forms'](char)) + return true; + if (unicodeBlockLookup['Yijing Hexagram Symbols'](char)) + return true; + if (unicodeBlockLookup['Yi Syllables'](char)) + return true; + if (unicodeBlockLookup['Yi Radicals'](char)) + return true; + return false; +} +function charHasNeutralVerticalOrientation(char) { + if (unicodeBlockLookup['Latin-1 Supplement'](char)) { + if (char === 167 || char === 169 || char === 174 || char === 177 || char === 188 || char === 189 || char === 190 || char === 215 || char === 247) { + return true; + } + } + if (unicodeBlockLookup['General Punctuation'](char)) { + if (char === 8214 || char === 8224 || char === 8225 || char === 8240 || char === 8241 || char === 8251 || char === 8252 || char === 8258 || char === 8263 || char === 8264 || char === 8265 || char === 8273) { + return true; + } + } + if (unicodeBlockLookup['Letterlike Symbols'](char)) + return true; + if (unicodeBlockLookup['Number Forms'](char)) + return true; + if (unicodeBlockLookup['Miscellaneous Technical'](char)) { + if (char >= 8960 && char <= 8967 || char >= 8972 && char <= 8991 || char >= 8996 && char <= 9000 || char === 9003 || char >= 9085 && char <= 9114 || char >= 9150 && char <= 9165 || char === 9167 || char >= 9169 && char <= 9179 || char >= 9186 && char <= 9215) { + return true; + } + } + if (unicodeBlockLookup['Control Pictures'](char) && char !== 9251) + return true; + if (unicodeBlockLookup['Optical Character Recognition'](char)) + return true; + if (unicodeBlockLookup['Enclosed Alphanumerics'](char)) + return true; + if (unicodeBlockLookup['Geometric Shapes'](char)) + return true; + if (unicodeBlockLookup['Miscellaneous Symbols'](char)) { + if (!(char >= 9754 && char <= 9759)) { + return true; + } + } + if (unicodeBlockLookup['Miscellaneous Symbols and Arrows'](char)) { + if (char >= 11026 && char <= 11055 || char >= 11088 && char <= 11097 || char >= 11192 && char <= 11243) { + return true; + } + } + if (unicodeBlockLookup['CJK Symbols and Punctuation'](char)) + return true; + if (unicodeBlockLookup['Katakana'](char)) + return true; + if (unicodeBlockLookup['Private Use Area'](char)) + return true; + if (unicodeBlockLookup['CJK Compatibility Forms'](char)) + return true; + if (unicodeBlockLookup['Small Form Variants'](char)) + return true; + if (unicodeBlockLookup['Halfwidth and Fullwidth Forms'](char)) + return true; + if (char === 8734 || char === 8756 || char === 8757 || char >= 9984 && char <= 10087 || char >= 10102 && char <= 10131 || char === 65532 || char === 65533) { + return true; + } + return false; +} +function charHasRotatedVerticalOrientation(char) { + return !(charHasUprightVerticalOrientation(char) || charHasNeutralVerticalOrientation(char)); +} +function charInComplexShapingScript(char) { + return unicodeBlockLookup['Arabic'](char) || unicodeBlockLookup['Arabic Supplement'](char) || unicodeBlockLookup['Arabic Extended-A'](char) || unicodeBlockLookup['Arabic Presentation Forms-A'](char) || unicodeBlockLookup['Arabic Presentation Forms-B'](char); +} +function charInRTLScript(char) { + return char >= 1424 && char <= 2303 || unicodeBlockLookup['Arabic Presentation Forms-A'](char) || unicodeBlockLookup['Arabic Presentation Forms-B'](char); +} +function charInSupportedScript(char, canRenderRTL) { + if (!canRenderRTL && charInRTLScript(char)) { + return false; + } + if (char >= 2304 && char <= 3583 || char >= 3840 && char <= 4255 || unicodeBlockLookup['Khmer'](char)) { + return false; + } + return true; +} +function stringContainsRTLText(chars) { + for (const char of chars) { + if (charInRTLScript(char.charCodeAt(0))) { + return true; + } + } + return false; +} +function isStringInSupportedScript(chars, canRenderRTL) { + for (const char of chars) { + if (!charInSupportedScript(char.charCodeAt(0), canRenderRTL)) { + return false; + } + } + return true; +} + +const status = { + unavailable: 'unavailable', + deferred: 'deferred', + loading: 'loading', + loaded: 'loaded', + error: 'error' +}; +let _completionCallback = null; +let pluginStatus = status.unavailable; +let pluginURL = null; +const triggerPluginCompletionEvent = function (error) { + if (error && typeof error === 'string' && error.indexOf('NetworkError') > -1) { + pluginStatus = status.error; + } + if (_completionCallback) { + _completionCallback(error); + } +}; +function sendPluginStateToWorker() { + evented.fire(new Event('pluginStateChange', { + pluginStatus, + pluginURL + })); +} +const evented = new Evented(); +const getRTLTextPluginStatus = function () { + return pluginStatus; +}; +const registerForPluginStateChange = function (callback) { + callback({ + pluginStatus, + pluginURL + }); + evented.on('pluginStateChange', callback); + return callback; +}; +const setRTLTextPlugin = function (url, callback, deferred = false) { + if (pluginStatus === status.deferred || pluginStatus === status.loading || pluginStatus === status.loaded) { + throw new Error('setRTLTextPlugin cannot be called multiple times.'); + } + pluginURL = exported.resolveURL(url); + pluginStatus = status.deferred; + _completionCallback = callback; + sendPluginStateToWorker(); + if (!deferred) { + downloadRTLTextPlugin(); + } +}; +const downloadRTLTextPlugin = function () { + if (pluginStatus !== status.deferred || !pluginURL) { + throw new Error('rtl-text-plugin cannot be downloaded unless a pluginURL is specified'); + } + pluginStatus = status.loading; + sendPluginStateToWorker(); + if (pluginURL) { + getArrayBuffer({ url: pluginURL }, error => { + if (error) { + triggerPluginCompletionEvent(error); + } else { + pluginStatus = status.loaded; + sendPluginStateToWorker(); + } + }); + } +}; +const plugin = { + applyArabicShaping: null, + processBidirectionalText: null, + processStyledBidirectionalText: null, + isLoaded() { + return pluginStatus === status.loaded || plugin.applyArabicShaping != null; + }, + isLoading() { + return pluginStatus === status.loading; + }, + setState(state) { + pluginStatus = state.pluginStatus; + pluginURL = state.pluginURL; + }, + isParsed() { + return plugin.applyArabicShaping != null && plugin.processBidirectionalText != null && plugin.processStyledBidirectionalText != null; + }, + getPluginURL() { + return pluginURL; + } +}; +const lazyLoadRTLTextPlugin = function () { + if (!plugin.isLoading() && !plugin.isLoaded() && getRTLTextPluginStatus() === 'deferred') { + downloadRTLTextPlugin(); + } +}; + +class EvaluationParameters { + constructor(zoom, options) { + this.zoom = zoom; + if (options) { + this.now = options.now; + this.fadeDuration = options.fadeDuration; + this.zoomHistory = options.zoomHistory; + this.transition = options.transition; + } else { + this.now = 0; + this.fadeDuration = 0; + this.zoomHistory = new ZoomHistory(); + this.transition = {}; + } + } + isSupportedScript(str) { + return isStringInSupportedScript(str, plugin.isLoaded()); + } + crossFadingFactor() { + if (this.fadeDuration === 0) { + return 1; + } else { + return Math.min((this.now - this.zoomHistory.lastIntegerZoomTime) / this.fadeDuration, 1); + } + } + getCrossfadeParameters() { + const z = this.zoom; + const fraction = z - Math.floor(z); + const t = this.crossFadingFactor(); + return z > this.zoomHistory.lastIntegerZoom ? { + fromScale: 2, + toScale: 1, + t: fraction + (1 - fraction) * t + } : { + fromScale: 0.5, + toScale: 1, + t: 1 - (1 - t) * fraction + }; + } +} + +class PropertyValue { + constructor(property, value) { + this.property = property; + this.value = value; + this.expression = normalizePropertyExpression(value === undefined ? property.specification.default : value, property.specification); + } + isDataDriven() { + return this.expression.kind === 'source' || this.expression.kind === 'composite'; + } + possiblyEvaluate(parameters, canonical, availableImages) { + return this.property.possiblyEvaluate(this, parameters, canonical, availableImages); + } +} +class TransitionablePropertyValue { + constructor(property) { + this.property = property; + this.value = new PropertyValue(property, undefined); + } + transitioned(parameters, prior) { + return new TransitioningPropertyValue(this.property, this.value, prior, extend({}, parameters.transition, this.transition), parameters.now); + } + untransitioned() { + return new TransitioningPropertyValue(this.property, this.value, null, {}, 0); + } +} +class Transitionable { + constructor(properties) { + this._properties = properties; + this._values = Object.create(properties.defaultTransitionablePropertyValues); + } + getValue(name) { + return clone(this._values[name].value.value); + } + setValue(name, value) { + if (!this._values.hasOwnProperty(name)) { + this._values[name] = new TransitionablePropertyValue(this._values[name].property); + } + this._values[name].value = new PropertyValue(this._values[name].property, value === null ? undefined : clone(value)); + } + getTransition(name) { + return clone(this._values[name].transition); + } + setTransition(name, value) { + if (!this._values.hasOwnProperty(name)) { + this._values[name] = new TransitionablePropertyValue(this._values[name].property); + } + this._values[name].transition = clone(value) || undefined; + } + serialize() { + const result = {}; + for (const property of Object.keys(this._values)) { + const value = this.getValue(property); + if (value !== undefined) { + result[property] = value; + } + const transition = this.getTransition(property); + if (transition !== undefined) { + result[`${ property }-transition`] = transition; + } + } + return result; + } + transitioned(parameters, prior) { + const result = new Transitioning(this._properties); + for (const property of Object.keys(this._values)) { + result._values[property] = this._values[property].transitioned(parameters, prior._values[property]); + } + return result; + } + untransitioned() { + const result = new Transitioning(this._properties); + for (const property of Object.keys(this._values)) { + result._values[property] = this._values[property].untransitioned(); + } + return result; + } +} +class TransitioningPropertyValue { + constructor(property, value, prior, transition, now) { + this.property = property; + this.value = value; + this.begin = now + transition.delay || 0; + this.end = this.begin + transition.duration || 0; + if (property.specification.transition && (transition.delay || transition.duration)) { + this.prior = prior; + } + } + possiblyEvaluate(parameters, canonical, availableImages) { + const now = parameters.now || 0; + const finalValue = this.value.possiblyEvaluate(parameters, canonical, availableImages); + const prior = this.prior; + if (!prior) { + return finalValue; + } else if (now > this.end) { + this.prior = null; + return finalValue; + } else if (this.value.isDataDriven()) { + this.prior = null; + return finalValue; + } else if (now < this.begin) { + return prior.possiblyEvaluate(parameters, canonical, availableImages); + } else { + const t = (now - this.begin) / (this.end - this.begin); + return this.property.interpolate(prior.possiblyEvaluate(parameters, canonical, availableImages), finalValue, easeCubicInOut(t)); + } + } +} +class Transitioning { + constructor(properties) { + this._properties = properties; + this._values = Object.create(properties.defaultTransitioningPropertyValues); + } + possiblyEvaluate(parameters, canonical, availableImages) { + const result = new PossiblyEvaluated(this._properties); + for (const property of Object.keys(this._values)) { + result._values[property] = this._values[property].possiblyEvaluate(parameters, canonical, availableImages); + } + return result; + } + hasTransition() { + for (const property of Object.keys(this._values)) { + if (this._values[property].prior) { + return true; + } + } + return false; + } +} +class Layout { + constructor(properties) { + this._properties = properties; + this._values = Object.create(properties.defaultPropertyValues); + } + getValue(name) { + return clone(this._values[name].value); + } + setValue(name, value) { + this._values[name] = new PropertyValue(this._values[name].property, value === null ? undefined : clone(value)); + } + serialize() { + const result = {}; + for (const property of Object.keys(this._values)) { + const value = this.getValue(property); + if (value !== undefined) { + result[property] = value; + } + } + return result; + } + possiblyEvaluate(parameters, canonical, availableImages) { + const result = new PossiblyEvaluated(this._properties); + for (const property of Object.keys(this._values)) { + result._values[property] = this._values[property].possiblyEvaluate(parameters, canonical, availableImages); + } + return result; + } +} +class PossiblyEvaluatedPropertyValue { + constructor(property, value, parameters) { + this.property = property; + this.value = value; + this.parameters = parameters; + } + isConstant() { + return this.value.kind === 'constant'; + } + constantOr(value) { + if (this.value.kind === 'constant') { + return this.value.value; + } else { + return value; + } + } + evaluate(feature, featureState, canonical, availableImages) { + return this.property.evaluate(this.value, this.parameters, feature, featureState, canonical, availableImages); + } +} +class PossiblyEvaluated { + constructor(properties) { + this._properties = properties; + this._values = Object.create(properties.defaultPossiblyEvaluatedValues); + } + get(name) { + return this._values[name]; + } +} +class DataConstantProperty { + constructor(specification) { + this.specification = specification; + } + possiblyEvaluate(value, parameters) { + return value.expression.evaluate(parameters); + } + interpolate(a, b, t) { + const interp = interpolate[this.specification.type]; + if (interp) { + return interp(a, b, t); + } else { + return a; + } + } +} +class DataDrivenProperty { + constructor(specification, overrides) { + this.specification = specification; + this.overrides = overrides; + } + possiblyEvaluate(value, parameters, canonical, availableImages) { + if (value.expression.kind === 'constant' || value.expression.kind === 'camera') { + return new PossiblyEvaluatedPropertyValue(this, { + kind: 'constant', + value: value.expression.evaluate(parameters, null, {}, canonical, availableImages) + }, parameters); + } else { + return new PossiblyEvaluatedPropertyValue(this, value.expression, parameters); + } + } + interpolate(a, b, t) { + if (a.value.kind !== 'constant' || b.value.kind !== 'constant') { + return a; + } + if (a.value.value === undefined || b.value.value === undefined) { + return new PossiblyEvaluatedPropertyValue(this, { + kind: 'constant', + value: undefined + }, a.parameters); + } + const interp = interpolate[this.specification.type]; + if (interp) { + return new PossiblyEvaluatedPropertyValue(this, { + kind: 'constant', + value: interp(a.value.value, b.value.value, t) + }, a.parameters); + } else { + return a; + } + } + evaluate(value, parameters, feature, featureState, canonical, availableImages) { + if (value.kind === 'constant') { + return value.value; + } else { + return value.evaluate(parameters, feature, featureState, canonical, availableImages); + } + } +} +class CrossFadedDataDrivenProperty extends DataDrivenProperty { + possiblyEvaluate(value, parameters, canonical, availableImages) { + if (value.value === undefined) { + return new PossiblyEvaluatedPropertyValue(this, { + kind: 'constant', + value: undefined + }, parameters); + } else if (value.expression.kind === 'constant') { + const evaluatedValue = value.expression.evaluate(parameters, null, {}, canonical, availableImages); + const isImageExpression = value.property.specification.type === 'resolvedImage'; + const constantValue = isImageExpression && typeof evaluatedValue !== 'string' ? evaluatedValue.name : evaluatedValue; + const constant = this._calculate(constantValue, constantValue, constantValue, parameters); + return new PossiblyEvaluatedPropertyValue(this, { + kind: 'constant', + value: constant + }, parameters); + } else if (value.expression.kind === 'camera') { + const cameraVal = this._calculate(value.expression.evaluate({ zoom: parameters.zoom - 1 }), value.expression.evaluate({ zoom: parameters.zoom }), value.expression.evaluate({ zoom: parameters.zoom + 1 }), parameters); + return new PossiblyEvaluatedPropertyValue(this, { + kind: 'constant', + value: cameraVal + }, parameters); + } else { + return new PossiblyEvaluatedPropertyValue(this, value.expression, parameters); + } + } + evaluate(value, globals, feature, featureState, canonical, availableImages) { + if (value.kind === 'source') { + const constant = value.evaluate(globals, feature, featureState, canonical, availableImages); + return this._calculate(constant, constant, constant, globals); + } else if (value.kind === 'composite') { + return this._calculate(value.evaluate({ zoom: Math.floor(globals.zoom) - 1 }, feature, featureState), value.evaluate({ zoom: Math.floor(globals.zoom) }, feature, featureState), value.evaluate({ zoom: Math.floor(globals.zoom) + 1 }, feature, featureState), globals); + } else { + return value.value; + } + } + _calculate(min, mid, max, parameters) { + const z = parameters.zoom; + return z > parameters.zoomHistory.lastIntegerZoom ? { + from: min, + to: mid + } : { + from: max, + to: mid + }; + } + interpolate(a) { + return a; + } +} +class CrossFadedProperty { + constructor(specification) { + this.specification = specification; + } + possiblyEvaluate(value, parameters, canonical, availableImages) { + if (value.value === undefined) { + return undefined; + } else if (value.expression.kind === 'constant') { + const constant = value.expression.evaluate(parameters, null, {}, canonical, availableImages); + return this._calculate(constant, constant, constant, parameters); + } else { + return this._calculate(value.expression.evaluate(new EvaluationParameters(Math.floor(parameters.zoom - 1), parameters)), value.expression.evaluate(new EvaluationParameters(Math.floor(parameters.zoom), parameters)), value.expression.evaluate(new EvaluationParameters(Math.floor(parameters.zoom + 1), parameters)), parameters); + } + } + _calculate(min, mid, max, parameters) { + const z = parameters.zoom; + return z > parameters.zoomHistory.lastIntegerZoom ? { + from: min, + to: mid + } : { + from: max, + to: mid + }; + } + interpolate(a) { + return a; + } +} +class ColorRampProperty { + constructor(specification) { + this.specification = specification; + } + possiblyEvaluate(value, parameters, canonical, availableImages) { + return !!value.expression.evaluate(parameters, null, {}, canonical, availableImages); + } + interpolate() { + return false; + } +} +class Properties { + constructor(properties) { + this.properties = properties; + this.defaultPropertyValues = {}; + this.defaultTransitionablePropertyValues = {}; + this.defaultTransitioningPropertyValues = {}; + this.defaultPossiblyEvaluatedValues = {}; + this.overridableProperties = []; + for (const property in properties) { + const prop = properties[property]; + if (prop.specification.overridable) { + this.overridableProperties.push(property); + } + const defaultPropertyValue = this.defaultPropertyValues[property] = new PropertyValue(prop, undefined); + const defaultTransitionablePropertyValue = this.defaultTransitionablePropertyValues[property] = new TransitionablePropertyValue(prop); + this.defaultTransitioningPropertyValues[property] = defaultTransitionablePropertyValue.untransitioned(); + this.defaultPossiblyEvaluatedValues[property] = defaultPropertyValue.possiblyEvaluate({}); + } + } +} +register('DataDrivenProperty', DataDrivenProperty); +register('DataConstantProperty', DataConstantProperty); +register('CrossFadedDataDrivenProperty', CrossFadedDataDrivenProperty); +register('CrossFadedProperty', CrossFadedProperty); +register('ColorRampProperty', ColorRampProperty); + +function packUint8ToFloat(a, b) { + a = clamp(Math.floor(a), 0, 255); + b = clamp(Math.floor(b), 0, 255); + return 256 * a + b; +} + +const viewTypes = { + 'Int8': Int8Array, + 'Uint8': Uint8Array, + 'Int16': Int16Array, + 'Uint16': Uint16Array, + 'Int32': Int32Array, + 'Uint32': Uint32Array, + 'Float32': Float32Array +}; +class Struct { + constructor(structArray, index) { + this._structArray = structArray; + this._pos1 = index * this.size; + this._pos2 = this._pos1 / 2; + this._pos4 = this._pos1 / 4; + this._pos8 = this._pos1 / 8; + } +} +const DEFAULT_CAPACITY = 128; +const RESIZE_MULTIPLIER = 5; +class StructArray { + constructor() { + this.isTransferred = false; + this.capacity = -1; + this.resize(0); + } + static serialize(array, transferables) { + array._trim(); + if (transferables) { + array.isTransferred = true; + transferables.push(array.arrayBuffer); + } + return { + length: array.length, + arrayBuffer: array.arrayBuffer + }; + } + static deserialize(input) { + const structArray = Object.create(this.prototype); + structArray.arrayBuffer = input.arrayBuffer; + structArray.length = input.length; + structArray.capacity = input.arrayBuffer.byteLength / structArray.bytesPerElement; + structArray._refreshViews(); + return structArray; + } + _trim() { + if (this.length !== this.capacity) { + this.capacity = this.length; + this.arrayBuffer = this.arrayBuffer.slice(0, this.length * this.bytesPerElement); + this._refreshViews(); + } + } + clear() { + this.length = 0; + } + resize(n) { + this.reserve(n); + this.length = n; + } + reserve(n) { + if (n > this.capacity) { + this.capacity = Math.max(n, Math.floor(this.capacity * RESIZE_MULTIPLIER), DEFAULT_CAPACITY); + this.arrayBuffer = new ArrayBuffer(this.capacity * this.bytesPerElement); + const oldUint8Array = this.uint8; + this._refreshViews(); + if (oldUint8Array) + this.uint8.set(oldUint8Array); + } + } + _refreshViews() { + throw new Error('_refreshViews() must be implemented by each concrete StructArray layout'); + } +} +function createLayout(members, alignment = 1) { + let offset = 0; + let maxSize = 0; + const layoutMembers = members.map(member => { + const typeSize = sizeOf(member.type); + const memberOffset = offset = align(offset, Math.max(alignment, typeSize)); + const components = member.components || 1; + maxSize = Math.max(maxSize, typeSize); + offset += typeSize * components; + return { + name: member.name, + type: member.type, + components, + offset: memberOffset + }; + }); + const size = align(offset, Math.max(maxSize, alignment)); + return { + members: layoutMembers, + size, + alignment + }; +} +function sizeOf(type) { + return viewTypes[type].BYTES_PER_ELEMENT; +} +function align(offset, size) { + return Math.ceil(offset / size) * size; +} + +class StructArrayLayout2i4 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + } + emplaceBack(v0, v1) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1); + } + emplace(i, v0, v1) { + const o2 = i * 2; + this.int16[o2 + 0] = v0; + this.int16[o2 + 1] = v1; + return i; + } +} +StructArrayLayout2i4.prototype.bytesPerElement = 4; +register('StructArrayLayout2i4', StructArrayLayout2i4); +class StructArrayLayout4i8 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3); + } + emplace(i, v0, v1, v2, v3) { + const o2 = i * 4; + this.int16[o2 + 0] = v0; + this.int16[o2 + 1] = v1; + this.int16[o2 + 2] = v2; + this.int16[o2 + 3] = v3; + return i; + } +} +StructArrayLayout4i8.prototype.bytesPerElement = 8; +register('StructArrayLayout4i8', StructArrayLayout4i8); +class StructArrayLayout2i4ub1f12 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3, v4, v5, v6) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3, v4, v5, v6); + } + emplace(i, v0, v1, v2, v3, v4, v5, v6) { + const o2 = i * 6; + const o1 = i * 12; + const o4 = i * 3; + this.int16[o2 + 0] = v0; + this.int16[o2 + 1] = v1; + this.uint8[o1 + 4] = v2; + this.uint8[o1 + 5] = v3; + this.uint8[o1 + 6] = v4; + this.uint8[o1 + 7] = v5; + this.float32[o4 + 2] = v6; + return i; + } +} +StructArrayLayout2i4ub1f12.prototype.bytesPerElement = 12; +register('StructArrayLayout2i4ub1f12', StructArrayLayout2i4ub1f12); +class StructArrayLayout2f8 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + } + emplaceBack(v0, v1) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1); + } + emplace(i, v0, v1) { + const o4 = i * 2; + this.float32[o4 + 0] = v0; + this.float32[o4 + 1] = v1; + return i; + } +} +StructArrayLayout2f8.prototype.bytesPerElement = 8; +register('StructArrayLayout2f8', StructArrayLayout2f8); +class StructArrayLayout10ui20 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.uint16 = new Uint16Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9); + } + emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) { + const o2 = i * 10; + this.uint16[o2 + 0] = v0; + this.uint16[o2 + 1] = v1; + this.uint16[o2 + 2] = v2; + this.uint16[o2 + 3] = v3; + this.uint16[o2 + 4] = v4; + this.uint16[o2 + 5] = v5; + this.uint16[o2 + 6] = v6; + this.uint16[o2 + 7] = v7; + this.uint16[o2 + 8] = v8; + this.uint16[o2 + 9] = v9; + return i; + } +} +StructArrayLayout10ui20.prototype.bytesPerElement = 20; +register('StructArrayLayout10ui20', StructArrayLayout10ui20); +class StructArrayLayout4i4ui4i24 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + this.uint16 = new Uint16Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11); + } + emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11) { + const o2 = i * 12; + this.int16[o2 + 0] = v0; + this.int16[o2 + 1] = v1; + this.int16[o2 + 2] = v2; + this.int16[o2 + 3] = v3; + this.uint16[o2 + 4] = v4; + this.uint16[o2 + 5] = v5; + this.uint16[o2 + 6] = v6; + this.uint16[o2 + 7] = v7; + this.int16[o2 + 8] = v8; + this.int16[o2 + 9] = v9; + this.int16[o2 + 10] = v10; + this.int16[o2 + 11] = v11; + return i; + } +} +StructArrayLayout4i4ui4i24.prototype.bytesPerElement = 24; +register('StructArrayLayout4i4ui4i24', StructArrayLayout4i4ui4i24); +class StructArrayLayout3f12 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2); + } + emplace(i, v0, v1, v2) { + const o4 = i * 3; + this.float32[o4 + 0] = v0; + this.float32[o4 + 1] = v1; + this.float32[o4 + 2] = v2; + return i; + } +} +StructArrayLayout3f12.prototype.bytesPerElement = 12; +register('StructArrayLayout3f12', StructArrayLayout3f12); +class StructArrayLayout1ul4 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.uint32 = new Uint32Array(this.arrayBuffer); + } + emplaceBack(v0) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0); + } + emplace(i, v0) { + const o4 = i * 1; + this.uint32[o4 + 0] = v0; + return i; + } +} +StructArrayLayout1ul4.prototype.bytesPerElement = 4; +register('StructArrayLayout1ul4', StructArrayLayout1ul4); +class StructArrayLayout2i4f1i1ul2ui32 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + this.uint32 = new Uint32Array(this.arrayBuffer); + this.uint16 = new Uint16Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9); + } + emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) { + const o2 = i * 16; + const o4 = i * 8; + this.int16[o2 + 0] = v0; + this.int16[o2 + 1] = v1; + this.float32[o4 + 1] = v2; + this.float32[o4 + 2] = v3; + this.float32[o4 + 3] = v4; + this.float32[o4 + 4] = v5; + this.int16[o2 + 10] = v6; + this.uint32[o4 + 6] = v7; + this.uint16[o2 + 14] = v8; + this.uint16[o2 + 15] = v9; + return i; + } +} +StructArrayLayout2i4f1i1ul2ui32.prototype.bytesPerElement = 32; +register('StructArrayLayout2i4f1i1ul2ui32', StructArrayLayout2i4f1i1ul2ui32); +class StructArrayLayout2i2i2i12 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3, v4, v5) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3, v4, v5); + } + emplace(i, v0, v1, v2, v3, v4, v5) { + const o2 = i * 6; + this.int16[o2 + 0] = v0; + this.int16[o2 + 1] = v1; + this.int16[o2 + 2] = v2; + this.int16[o2 + 3] = v3; + this.int16[o2 + 4] = v4; + this.int16[o2 + 5] = v5; + return i; + } +} +StructArrayLayout2i2i2i12.prototype.bytesPerElement = 12; +register('StructArrayLayout2i2i2i12', StructArrayLayout2i2i2i12); +class StructArrayLayout2f1f2i16 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3, v4) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3, v4); + } + emplace(i, v0, v1, v2, v3, v4) { + const o4 = i * 4; + const o2 = i * 8; + this.float32[o4 + 0] = v0; + this.float32[o4 + 1] = v1; + this.float32[o4 + 2] = v2; + this.int16[o2 + 6] = v3; + this.int16[o2 + 7] = v4; + return i; + } +} +StructArrayLayout2f1f2i16.prototype.bytesPerElement = 16; +register('StructArrayLayout2f1f2i16', StructArrayLayout2f1f2i16); +class StructArrayLayout2ub2f12 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3); + } + emplace(i, v0, v1, v2, v3) { + const o1 = i * 12; + const o4 = i * 3; + this.uint8[o1 + 0] = v0; + this.uint8[o1 + 1] = v1; + this.float32[o4 + 1] = v2; + this.float32[o4 + 2] = v3; + return i; + } +} +StructArrayLayout2ub2f12.prototype.bytesPerElement = 12; +register('StructArrayLayout2ub2f12', StructArrayLayout2ub2f12); +class StructArrayLayout3ui6 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.uint16 = new Uint16Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2); + } + emplace(i, v0, v1, v2) { + const o2 = i * 3; + this.uint16[o2 + 0] = v0; + this.uint16[o2 + 1] = v1; + this.uint16[o2 + 2] = v2; + return i; + } +} +StructArrayLayout3ui6.prototype.bytesPerElement = 6; +register('StructArrayLayout3ui6', StructArrayLayout3ui6); +class StructArrayLayout2i2ui3ul3ui2f3ub1ul1i48 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + this.uint16 = new Uint16Array(this.arrayBuffer); + this.uint32 = new Uint32Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16); + } + emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) { + const o2 = i * 24; + const o4 = i * 12; + const o1 = i * 48; + this.int16[o2 + 0] = v0; + this.int16[o2 + 1] = v1; + this.uint16[o2 + 2] = v2; + this.uint16[o2 + 3] = v3; + this.uint32[o4 + 2] = v4; + this.uint32[o4 + 3] = v5; + this.uint32[o4 + 4] = v6; + this.uint16[o2 + 10] = v7; + this.uint16[o2 + 11] = v8; + this.uint16[o2 + 12] = v9; + this.float32[o4 + 7] = v10; + this.float32[o4 + 8] = v11; + this.uint8[o1 + 36] = v12; + this.uint8[o1 + 37] = v13; + this.uint8[o1 + 38] = v14; + this.uint32[o4 + 10] = v15; + this.int16[o2 + 22] = v16; + return i; + } +} +StructArrayLayout2i2ui3ul3ui2f3ub1ul1i48.prototype.bytesPerElement = 48; +register('StructArrayLayout2i2ui3ul3ui2f3ub1ul1i48', StructArrayLayout2i2ui3ul3ui2f3ub1ul1i48); +class StructArrayLayout8i15ui1ul4f68 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + this.uint16 = new Uint16Array(this.arrayBuffer); + this.uint32 = new Uint32Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27); + } + emplace(i, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27) { + const o2 = i * 34; + const o4 = i * 17; + this.int16[o2 + 0] = v0; + this.int16[o2 + 1] = v1; + this.int16[o2 + 2] = v2; + this.int16[o2 + 3] = v3; + this.int16[o2 + 4] = v4; + this.int16[o2 + 5] = v5; + this.int16[o2 + 6] = v6; + this.int16[o2 + 7] = v7; + this.uint16[o2 + 8] = v8; + this.uint16[o2 + 9] = v9; + this.uint16[o2 + 10] = v10; + this.uint16[o2 + 11] = v11; + this.uint16[o2 + 12] = v12; + this.uint16[o2 + 13] = v13; + this.uint16[o2 + 14] = v14; + this.uint16[o2 + 15] = v15; + this.uint16[o2 + 16] = v16; + this.uint16[o2 + 17] = v17; + this.uint16[o2 + 18] = v18; + this.uint16[o2 + 19] = v19; + this.uint16[o2 + 20] = v20; + this.uint16[o2 + 21] = v21; + this.uint16[o2 + 22] = v22; + this.uint32[o4 + 12] = v23; + this.float32[o4 + 13] = v24; + this.float32[o4 + 14] = v25; + this.float32[o4 + 15] = v26; + this.float32[o4 + 16] = v27; + return i; + } +} +StructArrayLayout8i15ui1ul4f68.prototype.bytesPerElement = 68; +register('StructArrayLayout8i15ui1ul4f68', StructArrayLayout8i15ui1ul4f68); +class StructArrayLayout1f4 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + } + emplaceBack(v0) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0); + } + emplace(i, v0) { + const o4 = i * 1; + this.float32[o4 + 0] = v0; + return i; + } +} +StructArrayLayout1f4.prototype.bytesPerElement = 4; +register('StructArrayLayout1f4', StructArrayLayout1f4); +class StructArrayLayout3i6 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.int16 = new Int16Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2); + } + emplace(i, v0, v1, v2) { + const o2 = i * 3; + this.int16[o2 + 0] = v0; + this.int16[o2 + 1] = v1; + this.int16[o2 + 2] = v2; + return i; + } +} +StructArrayLayout3i6.prototype.bytesPerElement = 6; +register('StructArrayLayout3i6', StructArrayLayout3i6); +class StructArrayLayout1ul3ui12 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.uint32 = new Uint32Array(this.arrayBuffer); + this.uint16 = new Uint16Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3); + } + emplace(i, v0, v1, v2, v3) { + const o4 = i * 3; + const o2 = i * 6; + this.uint32[o4 + 0] = v0; + this.uint16[o2 + 2] = v1; + this.uint16[o2 + 3] = v2; + this.uint16[o2 + 4] = v3; + return i; + } +} +StructArrayLayout1ul3ui12.prototype.bytesPerElement = 12; +register('StructArrayLayout1ul3ui12', StructArrayLayout1ul3ui12); +class StructArrayLayout2ui4 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.uint16 = new Uint16Array(this.arrayBuffer); + } + emplaceBack(v0, v1) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1); + } + emplace(i, v0, v1) { + const o2 = i * 2; + this.uint16[o2 + 0] = v0; + this.uint16[o2 + 1] = v1; + return i; + } +} +StructArrayLayout2ui4.prototype.bytesPerElement = 4; +register('StructArrayLayout2ui4', StructArrayLayout2ui4); +class StructArrayLayout1ui2 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.uint16 = new Uint16Array(this.arrayBuffer); + } + emplaceBack(v0) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0); + } + emplace(i, v0) { + const o2 = i * 1; + this.uint16[o2 + 0] = v0; + return i; + } +} +StructArrayLayout1ui2.prototype.bytesPerElement = 2; +register('StructArrayLayout1ui2', StructArrayLayout1ui2); +class StructArrayLayout4f16 extends StructArray { + _refreshViews() { + this.uint8 = new Uint8Array(this.arrayBuffer); + this.float32 = new Float32Array(this.arrayBuffer); + } + emplaceBack(v0, v1, v2, v3) { + const i = this.length; + this.resize(i + 1); + return this.emplace(i, v0, v1, v2, v3); + } + emplace(i, v0, v1, v2, v3) { + const o4 = i * 4; + this.float32[o4 + 0] = v0; + this.float32[o4 + 1] = v1; + this.float32[o4 + 2] = v2; + this.float32[o4 + 3] = v3; + return i; + } +} +StructArrayLayout4f16.prototype.bytesPerElement = 16; +register('StructArrayLayout4f16', StructArrayLayout4f16); +class CollisionBoxStruct extends Struct { + get anchorPointX() { + return this._structArray.int16[this._pos2 + 0]; + } + get anchorPointY() { + return this._structArray.int16[this._pos2 + 1]; + } + get x1() { + return this._structArray.float32[this._pos4 + 1]; + } + get y1() { + return this._structArray.float32[this._pos4 + 2]; + } + get x2() { + return this._structArray.float32[this._pos4 + 3]; + } + get y2() { + return this._structArray.float32[this._pos4 + 4]; + } + get padding() { + return this._structArray.int16[this._pos2 + 10]; + } + get featureIndex() { + return this._structArray.uint32[this._pos4 + 6]; + } + get sourceLayerIndex() { + return this._structArray.uint16[this._pos2 + 14]; + } + get bucketIndex() { + return this._structArray.uint16[this._pos2 + 15]; + } + get anchorPoint() { + return new pointGeometry(this.anchorPointX, this.anchorPointY); + } +} +CollisionBoxStruct.prototype.size = 32; +class CollisionBoxArray extends StructArrayLayout2i4f1i1ul2ui32 { + get(index) { + return new CollisionBoxStruct(this, index); + } +} +register('CollisionBoxArray', CollisionBoxArray); +class PlacedSymbolStruct extends Struct { + get anchorX() { + return this._structArray.int16[this._pos2 + 0]; + } + get anchorY() { + return this._structArray.int16[this._pos2 + 1]; + } + get glyphStartIndex() { + return this._structArray.uint16[this._pos2 + 2]; + } + get numGlyphs() { + return this._structArray.uint16[this._pos2 + 3]; + } + get vertexStartIndex() { + return this._structArray.uint32[this._pos4 + 2]; + } + get lineStartIndex() { + return this._structArray.uint32[this._pos4 + 3]; + } + get lineLength() { + return this._structArray.uint32[this._pos4 + 4]; + } + get segment() { + return this._structArray.uint16[this._pos2 + 10]; + } + get lowerSize() { + return this._structArray.uint16[this._pos2 + 11]; + } + get upperSize() { + return this._structArray.uint16[this._pos2 + 12]; + } + get lineOffsetX() { + return this._structArray.float32[this._pos4 + 7]; + } + get lineOffsetY() { + return this._structArray.float32[this._pos4 + 8]; + } + get writingMode() { + return this._structArray.uint8[this._pos1 + 36]; + } + get placedOrientation() { + return this._structArray.uint8[this._pos1 + 37]; + } + set placedOrientation(x) { + this._structArray.uint8[this._pos1 + 37] = x; + } + get hidden() { + return this._structArray.uint8[this._pos1 + 38]; + } + set hidden(x) { + this._structArray.uint8[this._pos1 + 38] = x; + } + get crossTileID() { + return this._structArray.uint32[this._pos4 + 10]; + } + set crossTileID(x) { + this._structArray.uint32[this._pos4 + 10] = x; + } + get associatedIconIndex() { + return this._structArray.int16[this._pos2 + 22]; + } +} +PlacedSymbolStruct.prototype.size = 48; +class PlacedSymbolArray extends StructArrayLayout2i2ui3ul3ui2f3ub1ul1i48 { + get(index) { + return new PlacedSymbolStruct(this, index); + } +} +register('PlacedSymbolArray', PlacedSymbolArray); +class SymbolInstanceStruct extends Struct { + get anchorX() { + return this._structArray.int16[this._pos2 + 0]; + } + get anchorY() { + return this._structArray.int16[this._pos2 + 1]; + } + get rightJustifiedTextSymbolIndex() { + return this._structArray.int16[this._pos2 + 2]; + } + get centerJustifiedTextSymbolIndex() { + return this._structArray.int16[this._pos2 + 3]; + } + get leftJustifiedTextSymbolIndex() { + return this._structArray.int16[this._pos2 + 4]; + } + get verticalPlacedTextSymbolIndex() { + return this._structArray.int16[this._pos2 + 5]; + } + get placedIconSymbolIndex() { + return this._structArray.int16[this._pos2 + 6]; + } + get verticalPlacedIconSymbolIndex() { + return this._structArray.int16[this._pos2 + 7]; + } + get key() { + return this._structArray.uint16[this._pos2 + 8]; + } + get textBoxStartIndex() { + return this._structArray.uint16[this._pos2 + 9]; + } + get textBoxEndIndex() { + return this._structArray.uint16[this._pos2 + 10]; + } + get verticalTextBoxStartIndex() { + return this._structArray.uint16[this._pos2 + 11]; + } + get verticalTextBoxEndIndex() { + return this._structArray.uint16[this._pos2 + 12]; + } + get iconBoxStartIndex() { + return this._structArray.uint16[this._pos2 + 13]; + } + get iconBoxEndIndex() { + return this._structArray.uint16[this._pos2 + 14]; + } + get verticalIconBoxStartIndex() { + return this._structArray.uint16[this._pos2 + 15]; + } + get verticalIconBoxEndIndex() { + return this._structArray.uint16[this._pos2 + 16]; + } + get featureIndex() { + return this._structArray.uint16[this._pos2 + 17]; + } + get numHorizontalGlyphVertices() { + return this._structArray.uint16[this._pos2 + 18]; + } + get numVerticalGlyphVertices() { + return this._structArray.uint16[this._pos2 + 19]; + } + get numIconVertices() { + return this._structArray.uint16[this._pos2 + 20]; + } + get numVerticalIconVertices() { + return this._structArray.uint16[this._pos2 + 21]; + } + get useRuntimeCollisionCircles() { + return this._structArray.uint16[this._pos2 + 22]; + } + get crossTileID() { + return this._structArray.uint32[this._pos4 + 12]; + } + set crossTileID(x) { + this._structArray.uint32[this._pos4 + 12] = x; + } + get textBoxScale() { + return this._structArray.float32[this._pos4 + 13]; + } + get textOffset0() { + return this._structArray.float32[this._pos4 + 14]; + } + get textOffset1() { + return this._structArray.float32[this._pos4 + 15]; + } + get collisionCircleDiameter() { + return this._structArray.float32[this._pos4 + 16]; + } +} +SymbolInstanceStruct.prototype.size = 68; +class SymbolInstanceArray extends StructArrayLayout8i15ui1ul4f68 { + get(index) { + return new SymbolInstanceStruct(this, index); + } +} +register('SymbolInstanceArray', SymbolInstanceArray); +class GlyphOffsetArray extends StructArrayLayout1f4 { + getoffsetX(index) { + return this.float32[index * 1 + 0]; + } +} +register('GlyphOffsetArray', GlyphOffsetArray); +class SymbolLineVertexArray extends StructArrayLayout3i6 { + getx(index) { + return this.int16[index * 3 + 0]; + } + gety(index) { + return this.int16[index * 3 + 1]; + } + gettileUnitDistanceFromAnchor(index) { + return this.int16[index * 3 + 2]; + } +} +register('SymbolLineVertexArray', SymbolLineVertexArray); +class FeatureIndexStruct extends Struct { + get featureIndex() { + return this._structArray.uint32[this._pos4 + 0]; + } + get sourceLayerIndex() { + return this._structArray.uint16[this._pos2 + 2]; + } + get bucketIndex() { + return this._structArray.uint16[this._pos2 + 3]; + } + get layoutVertexArrayOffset() { + return this._structArray.uint16[this._pos2 + 4]; + } +} +FeatureIndexStruct.prototype.size = 12; +class FeatureIndexArray extends StructArrayLayout1ul3ui12 { + get(index) { + return new FeatureIndexStruct(this, index); + } +} +register('FeatureIndexArray', FeatureIndexArray); +class FillExtrusionCentroidStruct extends Struct { + get a_centroid_pos0() { + return this._structArray.uint16[this._pos2 + 0]; + } + get a_centroid_pos1() { + return this._structArray.uint16[this._pos2 + 1]; + } +} +FillExtrusionCentroidStruct.prototype.size = 4; +class FillExtrusionCentroidArray extends StructArrayLayout2ui4 { + get(index) { + return new FillExtrusionCentroidStruct(this, index); + } +} +register('FillExtrusionCentroidArray', FillExtrusionCentroidArray); + +const patternAttributes = createLayout([ + { + name: 'a_pattern_to', + components: 4, + type: 'Uint16' + }, + { + name: 'a_pattern_from', + components: 4, + type: 'Uint16' + }, + { + name: 'a_pixel_ratio_to', + components: 1, + type: 'Uint16' + }, + { + name: 'a_pixel_ratio_from', + components: 1, + type: 'Uint16' + } +]); + +var murmurhash3_gc = createCommonjsModule(function (module) { +function murmurhash3_32_gc(key, seed) { + var remainder, bytes, h1, h1b, c1, c2, k1, i; + remainder = key.length & 3; + bytes = key.length - remainder; + h1 = seed; + c1 = 3432918353; + c2 = 461845907; + i = 0; + while (i < bytes) { + k1 = key.charCodeAt(i) & 255 | (key.charCodeAt(++i) & 255) << 8 | (key.charCodeAt(++i) & 255) << 16 | (key.charCodeAt(++i) & 255) << 24; + ++i; + k1 = (k1 & 65535) * c1 + (((k1 >>> 16) * c1 & 65535) << 16) & 4294967295; + k1 = k1 << 15 | k1 >>> 17; + k1 = (k1 & 65535) * c2 + (((k1 >>> 16) * c2 & 65535) << 16) & 4294967295; + h1 ^= k1; + h1 = h1 << 13 | h1 >>> 19; + h1b = (h1 & 65535) * 5 + (((h1 >>> 16) * 5 & 65535) << 16) & 4294967295; + h1 = (h1b & 65535) + 27492 + (((h1b >>> 16) + 58964 & 65535) << 16); + } + k1 = 0; + switch (remainder) { + case 3: + k1 ^= (key.charCodeAt(i + 2) & 255) << 16; + case 2: + k1 ^= (key.charCodeAt(i + 1) & 255) << 8; + case 1: + k1 ^= key.charCodeAt(i) & 255; + k1 = (k1 & 65535) * c1 + (((k1 >>> 16) * c1 & 65535) << 16) & 4294967295; + k1 = k1 << 15 | k1 >>> 17; + k1 = (k1 & 65535) * c2 + (((k1 >>> 16) * c2 & 65535) << 16) & 4294967295; + h1 ^= k1; + } + h1 ^= key.length; + h1 ^= h1 >>> 16; + h1 = (h1 & 65535) * 2246822507 + (((h1 >>> 16) * 2246822507 & 65535) << 16) & 4294967295; + h1 ^= h1 >>> 13; + h1 = (h1 & 65535) * 3266489909 + (((h1 >>> 16) * 3266489909 & 65535) << 16) & 4294967295; + h1 ^= h1 >>> 16; + return h1 >>> 0; +} +{ + module.exports = murmurhash3_32_gc; +} +}); + +var murmurhash2_gc = createCommonjsModule(function (module) { +function murmurhash2_32_gc(str, seed) { + var l = str.length, h = seed ^ l, i = 0, k; + while (l >= 4) { + k = str.charCodeAt(i) & 255 | (str.charCodeAt(++i) & 255) << 8 | (str.charCodeAt(++i) & 255) << 16 | (str.charCodeAt(++i) & 255) << 24; + k = (k & 65535) * 1540483477 + (((k >>> 16) * 1540483477 & 65535) << 16); + k ^= k >>> 24; + k = (k & 65535) * 1540483477 + (((k >>> 16) * 1540483477 & 65535) << 16); + h = (h & 65535) * 1540483477 + (((h >>> 16) * 1540483477 & 65535) << 16) ^ k; + l -= 4; + ++i; + } + switch (l) { + case 3: + h ^= (str.charCodeAt(i + 2) & 255) << 16; + case 2: + h ^= (str.charCodeAt(i + 1) & 255) << 8; + case 1: + h ^= str.charCodeAt(i) & 255; + h = (h & 65535) * 1540483477 + (((h >>> 16) * 1540483477 & 65535) << 16); + } + h ^= h >>> 13; + h = (h & 65535) * 1540483477 + (((h >>> 16) * 1540483477 & 65535) << 16); + h ^= h >>> 15; + return h >>> 0; +} +{ + module.exports = murmurhash2_32_gc; +} +}); + +var murmurhashJs = murmurhash3_gc; +var murmur3_1 = murmurhash3_gc; +var murmur2_1 = murmurhash2_gc; +murmurhashJs.murmur3 = murmur3_1; +murmurhashJs.murmur2 = murmur2_1; + +class FeaturePositionMap { + constructor() { + this.ids = []; + this.positions = []; + this.indexed = false; + } + add(id, index, start, end) { + this.ids.push(getNumericId(id)); + this.positions.push(index, start, end); + } + getPositions(id) { + const intId = getNumericId(id); + let i = 0; + let j = this.ids.length - 1; + while (i < j) { + const m = i + j >> 1; + if (this.ids[m] >= intId) { + j = m; + } else { + i = m + 1; + } + } + const positions = []; + while (this.ids[i] === intId) { + const index = this.positions[3 * i]; + const start = this.positions[3 * i + 1]; + const end = this.positions[3 * i + 2]; + positions.push({ + index, + start, + end + }); + i++; + } + return positions; + } + static serialize(map, transferables) { + const ids = new Float64Array(map.ids); + const positions = new Uint32Array(map.positions); + sort(ids, positions, 0, ids.length - 1); + if (transferables) { + transferables.push(ids.buffer, positions.buffer); + } + return { + ids, + positions + }; + } + static deserialize(obj) { + const map = new FeaturePositionMap(); + map.ids = obj.ids; + map.positions = obj.positions; + map.indexed = true; + return map; + } +} +function getNumericId(value) { + const numValue = +value; + if (!isNaN(numValue) && numValue <= MAX_SAFE_INTEGER) { + return numValue; + } + return murmurhashJs(String(value)); +} +function sort(ids, positions, left, right) { + while (left < right) { + const pivot = ids[left + right >> 1]; + let i = left - 1; + let j = right + 1; + while (true) { + do + i++; + while (ids[i] < pivot); + do + j--; + while (ids[j] > pivot); + if (i >= j) + break; + swap(ids, i, j); + swap(positions, 3 * i, 3 * j); + swap(positions, 3 * i + 1, 3 * j + 1); + swap(positions, 3 * i + 2, 3 * j + 2); + } + if (j - left < right - j) { + sort(ids, positions, left, j); + left = j + 1; + } else { + sort(ids, positions, j + 1, right); + right = j; + } + } +} +function swap(arr, i, j) { + const tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; +} +register('FeaturePositionMap', FeaturePositionMap); + +class Uniform { + constructor(context, location) { + this.gl = context.gl; + this.location = location; + } +} +class Uniform1i extends Uniform { + constructor(context, location) { + super(context, location); + this.current = 0; + } + set(v) { + if (this.current !== v) { + this.current = v; + this.gl.uniform1i(this.location, v); + } + } +} +class Uniform1f extends Uniform { + constructor(context, location) { + super(context, location); + this.current = 0; + } + set(v) { + if (this.current !== v) { + this.current = v; + this.gl.uniform1f(this.location, v); + } + } +} +class Uniform2f extends Uniform { + constructor(context, location) { + super(context, location); + this.current = [ + 0, + 0 + ]; + } + set(v) { + if (v[0] !== this.current[0] || v[1] !== this.current[1]) { + this.current = v; + this.gl.uniform2f(this.location, v[0], v[1]); + } + } +} +class Uniform3f extends Uniform { + constructor(context, location) { + super(context, location); + this.current = [ + 0, + 0, + 0 + ]; + } + set(v) { + if (v[0] !== this.current[0] || v[1] !== this.current[1] || v[2] !== this.current[2]) { + this.current = v; + this.gl.uniform3f(this.location, v[0], v[1], v[2]); + } + } +} +class Uniform4f extends Uniform { + constructor(context, location) { + super(context, location); + this.current = [ + 0, + 0, + 0, + 0 + ]; + } + set(v) { + if (v[0] !== this.current[0] || v[1] !== this.current[1] || v[2] !== this.current[2] || v[3] !== this.current[3]) { + this.current = v; + this.gl.uniform4f(this.location, v[0], v[1], v[2], v[3]); + } + } +} +class UniformColor extends Uniform { + constructor(context, location) { + super(context, location); + this.current = Color.transparent; + } + set(v) { + if (v.r !== this.current.r || v.g !== this.current.g || v.b !== this.current.b || v.a !== this.current.a) { + this.current = v; + this.gl.uniform4f(this.location, v.r, v.g, v.b, v.a); + } + } +} +const emptyMat4 = new Float32Array(16); +class UniformMatrix4f extends Uniform { + constructor(context, location) { + super(context, location); + this.current = emptyMat4; + } + set(v) { + if (v[12] !== this.current[12] || v[0] !== this.current[0]) { + this.current = v; + this.gl.uniformMatrix4fv(this.location, false, v); + return; + } + for (let i = 1; i < 16; i++) { + if (v[i] !== this.current[i]) { + this.current = v; + this.gl.uniformMatrix4fv(this.location, false, v); + break; + } + } + } +} +const emptyMat3 = new Float32Array(9); +class UniformMatrix3f extends Uniform { + constructor(context, location) { + super(context, location); + this.current = emptyMat3; + } + set(v) { + for (let i = 0; i < 9; i++) { + if (v[i] !== this.current[i]) { + this.current = v; + this.gl.uniformMatrix3fv(this.location, false, v); + break; + } + } + } +} + +function packColor(color) { + return [ + packUint8ToFloat(255 * color.r, 255 * color.g), + packUint8ToFloat(255 * color.b, 255 * color.a) + ]; +} +class ConstantBinder { + constructor(value, names, type) { + this.value = value; + this.uniformNames = names.map(name => `u_${ name }`); + this.type = type; + } + setUniform(uniform, globals, currentValue) { + uniform.set(currentValue.constantOr(this.value)); + } + getBinding(context, location, _) { + return this.type === 'color' ? new UniformColor(context, location) : new Uniform1f(context, location); + } +} +class CrossFadedConstantBinder { + constructor(value, names) { + this.uniformNames = names.map(name => `u_${ name }`); + this.patternFrom = null; + this.patternTo = null; + this.pixelRatioFrom = 1; + this.pixelRatioTo = 1; + } + setConstantPatternPositions(posTo, posFrom) { + this.pixelRatioFrom = posFrom.pixelRatio; + this.pixelRatioTo = posTo.pixelRatio; + this.patternFrom = posFrom.tlbr; + this.patternTo = posTo.tlbr; + } + setUniform(uniform, globals, currentValue, uniformName) { + const pos = uniformName === 'u_pattern_to' ? this.patternTo : uniformName === 'u_pattern_from' ? this.patternFrom : uniformName === 'u_pixel_ratio_to' ? this.pixelRatioTo : uniformName === 'u_pixel_ratio_from' ? this.pixelRatioFrom : null; + if (pos) + uniform.set(pos); + } + getBinding(context, location, name) { + return name.substr(0, 9) === 'u_pattern' ? new Uniform4f(context, location) : new Uniform1f(context, location); + } +} +class SourceExpressionBinder { + constructor(expression, names, type, PaintVertexArray) { + this.expression = expression; + this.type = type; + this.maxValue = 0; + this.paintVertexAttributes = names.map(name => ({ + name: `a_${ name }`, + type: 'Float32', + components: type === 'color' ? 2 : 1, + offset: 0 + })); + this.paintVertexArray = new PaintVertexArray(); + } + populatePaintArray(newLength, feature, imagePositions, canonical, formattedSection) { + const start = this.paintVertexArray.length; + const value = this.expression.evaluate(new EvaluationParameters(0), feature, {}, canonical, [], formattedSection); + this.paintVertexArray.resize(newLength); + this._setPaintValue(start, newLength, value); + } + updatePaintArray(start, end, feature, featureState) { + const value = this.expression.evaluate({ zoom: 0 }, feature, featureState); + this._setPaintValue(start, end, value); + } + _setPaintValue(start, end, value) { + if (this.type === 'color') { + const color = packColor(value); + for (let i = start; i < end; i++) { + this.paintVertexArray.emplace(i, color[0], color[1]); + } + } else { + for (let i = start; i < end; i++) { + this.paintVertexArray.emplace(i, value); + } + this.maxValue = Math.max(this.maxValue, Math.abs(value)); + } + } + upload(context) { + if (this.paintVertexArray && this.paintVertexArray.arrayBuffer) { + if (this.paintVertexBuffer && this.paintVertexBuffer.buffer) { + this.paintVertexBuffer.updateData(this.paintVertexArray); + } else { + this.paintVertexBuffer = context.createVertexBuffer(this.paintVertexArray, this.paintVertexAttributes, this.expression.isStateDependent); + } + } + } + destroy() { + if (this.paintVertexBuffer) { + this.paintVertexBuffer.destroy(); + } + } +} +class CompositeExpressionBinder { + constructor(expression, names, type, useIntegerZoom, zoom, PaintVertexArray) { + this.expression = expression; + this.uniformNames = names.map(name => `u_${ name }_t`); + this.type = type; + this.useIntegerZoom = useIntegerZoom; + this.zoom = zoom; + this.maxValue = 0; + this.paintVertexAttributes = names.map(name => ({ + name: `a_${ name }`, + type: 'Float32', + components: type === 'color' ? 4 : 2, + offset: 0 + })); + this.paintVertexArray = new PaintVertexArray(); + } + populatePaintArray(newLength, feature, imagePositions, canonical, formattedSection) { + const min = this.expression.evaluate(new EvaluationParameters(this.zoom), feature, {}, canonical, [], formattedSection); + const max = this.expression.evaluate(new EvaluationParameters(this.zoom + 1), feature, {}, canonical, [], formattedSection); + const start = this.paintVertexArray.length; + this.paintVertexArray.resize(newLength); + this._setPaintValue(start, newLength, min, max); + } + updatePaintArray(start, end, feature, featureState) { + const min = this.expression.evaluate({ zoom: this.zoom }, feature, featureState); + const max = this.expression.evaluate({ zoom: this.zoom + 1 }, feature, featureState); + this._setPaintValue(start, end, min, max); + } + _setPaintValue(start, end, min, max) { + if (this.type === 'color') { + const minColor = packColor(min); + const maxColor = packColor(max); + for (let i = start; i < end; i++) { + this.paintVertexArray.emplace(i, minColor[0], minColor[1], maxColor[0], maxColor[1]); + } + } else { + for (let i = start; i < end; i++) { + this.paintVertexArray.emplace(i, min, max); + } + this.maxValue = Math.max(this.maxValue, Math.abs(min), Math.abs(max)); + } + } + upload(context) { + if (this.paintVertexArray && this.paintVertexArray.arrayBuffer) { + if (this.paintVertexBuffer && this.paintVertexBuffer.buffer) { + this.paintVertexBuffer.updateData(this.paintVertexArray); + } else { + this.paintVertexBuffer = context.createVertexBuffer(this.paintVertexArray, this.paintVertexAttributes, this.expression.isStateDependent); + } + } + } + destroy() { + if (this.paintVertexBuffer) { + this.paintVertexBuffer.destroy(); + } + } + setUniform(uniform, globals) { + const currentZoom = this.useIntegerZoom ? Math.floor(globals.zoom) : globals.zoom; + const factor = clamp(this.expression.interpolationFactor(currentZoom, this.zoom, this.zoom + 1), 0, 1); + uniform.set(factor); + } + getBinding(context, location, _) { + return new Uniform1f(context, location); + } +} +class CrossFadedCompositeBinder { + constructor(expression, names, type, useIntegerZoom, zoom, PaintVertexArray, layerId) { + this.expression = expression; + this.type = type; + this.useIntegerZoom = useIntegerZoom; + this.zoom = zoom; + this.layerId = layerId; + for (let i = 0; i < names.length; ++i) { + } + this.zoomInPaintVertexArray = new PaintVertexArray(); + this.zoomOutPaintVertexArray = new PaintVertexArray(); + } + populatePaintArray(length, feature, imagePositions) { + const start = this.zoomInPaintVertexArray.length; + this.zoomInPaintVertexArray.resize(length); + this.zoomOutPaintVertexArray.resize(length); + this._setPaintValues(start, length, feature.patterns && feature.patterns[this.layerId], imagePositions); + } + updatePaintArray(start, end, feature, featureState, imagePositions) { + this._setPaintValues(start, end, feature.patterns && feature.patterns[this.layerId], imagePositions); + } + _setPaintValues(start, end, patterns, positions) { + if (!positions || !patterns) + return; + const {min, mid, max} = patterns; + const imageMin = positions[min]; + const imageMid = positions[mid]; + const imageMax = positions[max]; + if (!imageMin || !imageMid || !imageMax) + return; + for (let i = start; i < end; i++) { + this.zoomInPaintVertexArray.emplace(i, imageMid.tl[0], imageMid.tl[1], imageMid.br[0], imageMid.br[1], imageMin.tl[0], imageMin.tl[1], imageMin.br[0], imageMin.br[1], imageMid.pixelRatio, imageMin.pixelRatio); + this.zoomOutPaintVertexArray.emplace(i, imageMid.tl[0], imageMid.tl[1], imageMid.br[0], imageMid.br[1], imageMax.tl[0], imageMax.tl[1], imageMax.br[0], imageMax.br[1], imageMid.pixelRatio, imageMax.pixelRatio); + } + } + upload(context) { + if (this.zoomInPaintVertexArray && this.zoomInPaintVertexArray.arrayBuffer && this.zoomOutPaintVertexArray && this.zoomOutPaintVertexArray.arrayBuffer) { + this.zoomInPaintVertexBuffer = context.createVertexBuffer(this.zoomInPaintVertexArray, patternAttributes.members, this.expression.isStateDependent); + this.zoomOutPaintVertexBuffer = context.createVertexBuffer(this.zoomOutPaintVertexArray, patternAttributes.members, this.expression.isStateDependent); + } + } + destroy() { + if (this.zoomOutPaintVertexBuffer) + this.zoomOutPaintVertexBuffer.destroy(); + if (this.zoomInPaintVertexBuffer) + this.zoomInPaintVertexBuffer.destroy(); + } +} +class ProgramConfiguration { + constructor(layer, zoom, filterProperties = () => true) { + this.binders = {}; + this._buffers = []; + const keys = []; + for (const property in layer.paint._values) { + if (!filterProperties(property)) + continue; + const value = layer.paint.get(property); + if (!(value instanceof PossiblyEvaluatedPropertyValue) || !supportsPropertyExpression(value.property.specification)) { + continue; + } + const names = paintAttributeNames(property, layer.type); + const expression = value.value; + const type = value.property.specification.type; + const useIntegerZoom = value.property.useIntegerZoom; + const propType = value.property.specification['property-type']; + const isCrossFaded = propType === 'cross-faded' || propType === 'cross-faded-data-driven'; + if (expression.kind === 'constant') { + this.binders[property] = isCrossFaded ? new CrossFadedConstantBinder(expression.value, names) : new ConstantBinder(expression.value, names, type); + keys.push(`/u_${ property }`); + } else if (expression.kind === 'source' || isCrossFaded) { + const StructArrayLayout = layoutType(property, type, 'source'); + this.binders[property] = isCrossFaded ? new CrossFadedCompositeBinder(expression, names, type, useIntegerZoom, zoom, StructArrayLayout, layer.id) : new SourceExpressionBinder(expression, names, type, StructArrayLayout); + keys.push(`/a_${ property }`); + } else { + const StructArrayLayout = layoutType(property, type, 'composite'); + this.binders[property] = new CompositeExpressionBinder(expression, names, type, useIntegerZoom, zoom, StructArrayLayout); + keys.push(`/z_${ property }`); + } + } + this.cacheKey = keys.sort().join(''); + } + getMaxValue(property) { + const binder = this.binders[property]; + return binder instanceof SourceExpressionBinder || binder instanceof CompositeExpressionBinder ? binder.maxValue : 0; + } + populatePaintArrays(newLength, feature, imagePositions, canonical, formattedSection) { + for (const property in this.binders) { + const binder = this.binders[property]; + if (binder instanceof SourceExpressionBinder || binder instanceof CompositeExpressionBinder || binder instanceof CrossFadedCompositeBinder) + binder.populatePaintArray(newLength, feature, imagePositions, canonical, formattedSection); + } + } + setConstantPatternPositions(posTo, posFrom) { + for (const property in this.binders) { + const binder = this.binders[property]; + if (binder instanceof CrossFadedConstantBinder) + binder.setConstantPatternPositions(posTo, posFrom); + } + } + updatePaintArrays(featureStates, featureMap, vtLayer, layer, imagePositions) { + let dirty = false; + for (const id in featureStates) { + const positions = featureMap.getPositions(id); + for (const pos of positions) { + const feature = vtLayer.feature(pos.index); + for (const property in this.binders) { + const binder = this.binders[property]; + if ((binder instanceof SourceExpressionBinder || binder instanceof CompositeExpressionBinder || binder instanceof CrossFadedCompositeBinder) && binder.expression.isStateDependent === true) { + const value = layer.paint.get(property); + binder.expression = value.value; + binder.updatePaintArray(pos.start, pos.end, feature, featureStates[id], imagePositions); + dirty = true; + } + } + } + } + return dirty; + } + defines() { + const result = []; + for (const property in this.binders) { + const binder = this.binders[property]; + if (binder instanceof ConstantBinder || binder instanceof CrossFadedConstantBinder) { + result.push(...binder.uniformNames.map(name => `#define HAS_UNIFORM_${ name }`)); + } + } + return result; + } + getBinderAttributes() { + const result = []; + for (const property in this.binders) { + const binder = this.binders[property]; + if (binder instanceof SourceExpressionBinder || binder instanceof CompositeExpressionBinder) { + for (let i = 0; i < binder.paintVertexAttributes.length; i++) { + result.push(binder.paintVertexAttributes[i].name); + } + } else if (binder instanceof CrossFadedCompositeBinder) { + for (let i = 0; i < patternAttributes.members.length; i++) { + result.push(patternAttributes.members[i].name); + } + } + } + return result; + } + getBinderUniforms() { + const uniforms = []; + for (const property in this.binders) { + const binder = this.binders[property]; + if (binder instanceof ConstantBinder || binder instanceof CrossFadedConstantBinder || binder instanceof CompositeExpressionBinder) { + for (const uniformName of binder.uniformNames) { + uniforms.push(uniformName); + } + } + } + return uniforms; + } + getPaintVertexBuffers() { + return this._buffers; + } + getUniforms(context, locations) { + const uniforms = []; + for (const property in this.binders) { + const binder = this.binders[property]; + if (binder instanceof ConstantBinder || binder instanceof CrossFadedConstantBinder || binder instanceof CompositeExpressionBinder) { + for (const name of binder.uniformNames) { + if (locations[name]) { + const binding = binder.getBinding(context, locations[name], name); + uniforms.push({ + name, + property, + binding + }); + } + } + } + } + return uniforms; + } + setUniforms(context, binderUniforms, properties, globals) { + for (const {name, property, binding} of binderUniforms) { + this.binders[property].setUniform(binding, globals, properties.get(property), name); + } + } + updatePaintBuffers(crossfade) { + this._buffers = []; + for (const property in this.binders) { + const binder = this.binders[property]; + if (crossfade && binder instanceof CrossFadedCompositeBinder) { + const patternVertexBuffer = crossfade.fromScale === 2 ? binder.zoomInPaintVertexBuffer : binder.zoomOutPaintVertexBuffer; + if (patternVertexBuffer) + this._buffers.push(patternVertexBuffer); + } else if ((binder instanceof SourceExpressionBinder || binder instanceof CompositeExpressionBinder) && binder.paintVertexBuffer) { + this._buffers.push(binder.paintVertexBuffer); + } + } + } + upload(context) { + for (const property in this.binders) { + const binder = this.binders[property]; + if (binder instanceof SourceExpressionBinder || binder instanceof CompositeExpressionBinder || binder instanceof CrossFadedCompositeBinder) + binder.upload(context); + } + this.updatePaintBuffers(); + } + destroy() { + for (const property in this.binders) { + const binder = this.binders[property]; + if (binder instanceof SourceExpressionBinder || binder instanceof CompositeExpressionBinder || binder instanceof CrossFadedCompositeBinder) + binder.destroy(); + } + } +} +class ProgramConfigurationSet { + constructor(layers, zoom, filterProperties = () => true) { + this.programConfigurations = {}; + for (const layer of layers) { + this.programConfigurations[layer.id] = new ProgramConfiguration(layer, zoom, filterProperties); + } + this.needsUpload = false; + this._featureMap = new FeaturePositionMap(); + this._bufferOffset = 0; + } + populatePaintArrays(length, feature, index, imagePositions, canonical, formattedSection) { + for (const key in this.programConfigurations) { + this.programConfigurations[key].populatePaintArrays(length, feature, imagePositions, canonical, formattedSection); + } + if (feature.id !== undefined) { + this._featureMap.add(feature.id, index, this._bufferOffset, length); + } + this._bufferOffset = length; + this.needsUpload = true; + } + updatePaintArrays(featureStates, vtLayer, layers, imagePositions) { + for (const layer of layers) { + this.needsUpload = this.programConfigurations[layer.id].updatePaintArrays(featureStates, this._featureMap, vtLayer, layer, imagePositions) || this.needsUpload; + } + } + get(layerId) { + return this.programConfigurations[layerId]; + } + upload(context) { + if (!this.needsUpload) + return; + for (const layerId in this.programConfigurations) { + this.programConfigurations[layerId].upload(context); + } + this.needsUpload = false; + } + destroy() { + for (const layerId in this.programConfigurations) { + this.programConfigurations[layerId].destroy(); + } + } +} +function paintAttributeNames(property, type) { + const attributeNameExceptions = { + 'text-opacity': ['opacity'], + 'icon-opacity': ['opacity'], + 'text-color': ['fill_color'], + 'icon-color': ['fill_color'], + 'text-halo-color': ['halo_color'], + 'icon-halo-color': ['halo_color'], + 'text-halo-blur': ['halo_blur'], + 'icon-halo-blur': ['halo_blur'], + 'text-halo-width': ['halo_width'], + 'icon-halo-width': ['halo_width'], + 'line-gap-width': ['gapwidth'], + 'line-pattern': [ + 'pattern_to', + 'pattern_from', + 'pixel_ratio_to', + 'pixel_ratio_from' + ], + 'fill-pattern': [ + 'pattern_to', + 'pattern_from', + 'pixel_ratio_to', + 'pixel_ratio_from' + ], + 'fill-extrusion-pattern': [ + 'pattern_to', + 'pattern_from', + 'pixel_ratio_to', + 'pixel_ratio_from' + ] + }; + return attributeNameExceptions[property] || [property.replace(`${ type }-`, '').replace(/-/g, '_')]; +} +function getLayoutException(property) { + const propertyExceptions = { + 'line-pattern': { + 'source': StructArrayLayout10ui20, + 'composite': StructArrayLayout10ui20 + }, + 'fill-pattern': { + 'source': StructArrayLayout10ui20, + 'composite': StructArrayLayout10ui20 + }, + 'fill-extrusion-pattern': { + 'source': StructArrayLayout10ui20, + 'composite': StructArrayLayout10ui20 + } + }; + return propertyExceptions[property]; +} +function layoutType(property, type, binderType) { + const defaultLayouts = { + 'color': { + 'source': StructArrayLayout2f8, + 'composite': StructArrayLayout4f16 + }, + 'number': { + 'source': StructArrayLayout1f4, + 'composite': StructArrayLayout2f8 + } + }; + const layoutException = getLayoutException(property); + return layoutException && layoutException[binderType] || defaultLayouts[type][binderType]; +} +register('ConstantBinder', ConstantBinder); +register('CrossFadedConstantBinder', CrossFadedConstantBinder); +register('SourceExpressionBinder', SourceExpressionBinder); +register('CrossFadedCompositeBinder', CrossFadedCompositeBinder); +register('CompositeExpressionBinder', CompositeExpressionBinder); +register('ProgramConfiguration', ProgramConfiguration, { omit: ['_buffers'] }); +register('ProgramConfigurationSet', ProgramConfigurationSet); + +const TRANSITION_SUFFIX = '-transition'; +class StyleLayer extends Evented { + constructor(layer, properties) { + super(); + this.id = layer.id; + this.type = layer.type; + this._featureFilter = { + filter: () => true, + needGeometry: false + }; + if (layer.type === 'custom') + return; + layer = layer; + this.metadata = layer.metadata; + this.minzoom = layer.minzoom; + this.maxzoom = layer.maxzoom; + if (layer.type !== 'background' && layer.type !== 'sky') { + this.source = layer.source; + this.sourceLayer = layer['source-layer']; + this.filter = layer.filter; + } + if (properties.layout) { + this._unevaluatedLayout = new Layout(properties.layout); + } + if (properties.paint) { + this._transitionablePaint = new Transitionable(properties.paint); + for (const property in layer.paint) { + this.setPaintProperty(property, layer.paint[property], { validate: false }); + } + for (const property in layer.layout) { + this.setLayoutProperty(property, layer.layout[property], { validate: false }); + } + this._transitioningPaint = this._transitionablePaint.untransitioned(); + this.paint = new PossiblyEvaluated(properties.paint); + } + } + getCrossfadeParameters() { + return this._crossfadeParameters; + } + getLayoutProperty(name) { + if (name === 'visibility') { + return this.visibility; + } + return this._unevaluatedLayout.getValue(name); + } + setLayoutProperty(name, value, options = {}) { + if (value !== null && value !== undefined) { + const key = `layers.${ this.id }.layout.${ name }`; + if (this._validate(validateLayoutProperty$1, key, name, value, options)) { + return; + } + } + if (name === 'visibility') { + this.visibility = value; + return; + } + this._unevaluatedLayout.setValue(name, value); + } + getPaintProperty(name) { + if (endsWith(name, TRANSITION_SUFFIX)) { + return this._transitionablePaint.getTransition(name.slice(0, -TRANSITION_SUFFIX.length)); + } else { + return this._transitionablePaint.getValue(name); + } + } + setPaintProperty(name, value, options = {}) { + if (value !== null && value !== undefined) { + const key = `layers.${ this.id }.paint.${ name }`; + if (this._validate(validatePaintProperty$1, key, name, value, options)) { + return false; + } + } + if (endsWith(name, TRANSITION_SUFFIX)) { + this._transitionablePaint.setTransition(name.slice(0, -TRANSITION_SUFFIX.length), value || undefined); + return false; + } else { + const transitionable = this._transitionablePaint._values[name]; + const isCrossFadedProperty = transitionable.property.specification['property-type'] === 'cross-faded-data-driven'; + const wasDataDriven = transitionable.value.isDataDriven(); + const oldValue = transitionable.value; + this._transitionablePaint.setValue(name, value); + this._handleSpecialPaintPropertyUpdate(name); + const newValue = this._transitionablePaint._values[name].value; + const isDataDriven = newValue.isDataDriven(); + return isDataDriven || wasDataDriven || isCrossFadedProperty || this._handleOverridablePaintPropertyUpdate(name, oldValue, newValue); + } + } + _handleSpecialPaintPropertyUpdate(_) { + } + getProgramIds() { + return null; + } + getProgramConfiguration(_) { + return null; + } + _handleOverridablePaintPropertyUpdate(name, oldValue, newValue) { + return false; + } + isHidden(zoom) { + if (this.minzoom && zoom < this.minzoom) + return true; + if (this.maxzoom && zoom >= this.maxzoom) + return true; + return this.visibility === 'none'; + } + updateTransitions(parameters) { + this._transitioningPaint = this._transitionablePaint.transitioned(parameters, this._transitioningPaint); + } + hasTransition() { + return this._transitioningPaint.hasTransition(); + } + recalculate(parameters, availableImages) { + if (parameters.getCrossfadeParameters) { + this._crossfadeParameters = parameters.getCrossfadeParameters(); + } + if (this._unevaluatedLayout) { + this.layout = this._unevaluatedLayout.possiblyEvaluate(parameters, undefined, availableImages); + } + this.paint = this._transitioningPaint.possiblyEvaluate(parameters, undefined, availableImages); + } + serialize() { + const output = { + 'id': this.id, + 'type': this.type, + 'source': this.source, + 'source-layer': this.sourceLayer, + 'metadata': this.metadata, + 'minzoom': this.minzoom, + 'maxzoom': this.maxzoom, + 'filter': this.filter, + 'layout': this._unevaluatedLayout && this._unevaluatedLayout.serialize(), + 'paint': this._transitionablePaint && this._transitionablePaint.serialize() + }; + if (this.visibility) { + output.layout = output.layout || {}; + output.layout.visibility = this.visibility; + } + return filterObject(output, (value, key) => { + return value !== undefined && !(key === 'layout' && !Object.keys(value).length) && !(key === 'paint' && !Object.keys(value).length); + }); + } + _validate(validate, key, name, value, options = {}) { + if (options && options.validate === false) { + return false; + } + return emitValidationErrors(this, validate.call(validateStyle, { + key, + layerType: this.type, + objectKey: name, + value, + styleSpec: spec, + style: { + glyphs: true, + sprite: true + } + })); + } + is3D() { + return false; + } + isSky() { + return false; + } + isTileClipped() { + return false; + } + hasOffscreenPass() { + return false; + } + resize() { + } + isStateDependent() { + for (const property in this.paint._values) { + const value = this.paint.get(property); + if (!(value instanceof PossiblyEvaluatedPropertyValue) || !supportsPropertyExpression(value.property.specification)) { + continue; + } + if ((value.value.kind === 'source' || value.value.kind === 'composite') && value.value.isStateDependent) { + return true; + } + } + return false; + } +} + +const layout$1 = createLayout([{ + name: 'a_pos', + components: 2, + type: 'Int16' + }], 4); +const {members, size, alignment} = layout$1; + +class SegmentVector { + constructor(segments = []) { + this.segments = segments; + } + prepareSegment(numVertices, layoutVertexArray, indexArray, sortKey) { + let segment = this.segments[this.segments.length - 1]; + if (numVertices > SegmentVector.MAX_VERTEX_ARRAY_LENGTH) + warnOnce(`Max vertices per segment is ${ SegmentVector.MAX_VERTEX_ARRAY_LENGTH }: bucket requested ${ numVertices }`); + if (!segment || segment.vertexLength + numVertices > SegmentVector.MAX_VERTEX_ARRAY_LENGTH || segment.sortKey !== sortKey) { + segment = { + vertexOffset: layoutVertexArray.length, + primitiveOffset: indexArray.length, + vertexLength: 0, + primitiveLength: 0 + }; + if (sortKey !== undefined) + segment.sortKey = sortKey; + this.segments.push(segment); + } + return segment; + } + get() { + return this.segments; + } + destroy() { + for (const segment of this.segments) { + for (const k in segment.vaos) { + segment.vaos[k].destroy(); + } + } + } + static simpleSegment(vertexOffset, primitiveOffset, vertexLength, primitiveLength) { + return new SegmentVector([{ + vertexOffset, + primitiveOffset, + vertexLength, + primitiveLength, + vaos: {}, + sortKey: 0 + }]); + } +} +SegmentVector.MAX_VERTEX_ARRAY_LENGTH = Math.pow(2, 16) - 1; +register('SegmentVector', SegmentVector); + +var EXTENT$1 = 8192; + +const BITS = 15; +const MAX = Math.pow(2, BITS - 1) - 1; +const MIN = -MAX - 1; +function loadGeometry(feature) { + const scale = EXTENT$1 / feature.extent; + const geometry = feature.loadGeometry(); + for (let r = 0; r < geometry.length; r++) { + const ring = geometry[r]; + for (let p = 0; p < ring.length; p++) { + const point = ring[p]; + const x = Math.round(point.x * scale); + const y = Math.round(point.y * scale); + point.x = clamp(x, MIN, MAX); + point.y = clamp(y, MIN, MAX); + if (x < point.x || x > point.x + 1 || y < point.y || y > point.y + 1) { + warnOnce('Geometry exceeds allowed extent, reduce your vector tile buffer size'); + } + } + } + return geometry; +} + +function toEvaluationFeature(feature, needGeometry) { + return { + type: feature.type, + id: feature.id, + properties: feature.properties, + geometry: needGeometry ? loadGeometry(feature) : [] + }; +} + +function addCircleVertex(layoutVertexArray, x, y, extrudeX, extrudeY) { + layoutVertexArray.emplaceBack(x * 2 + (extrudeX + 1) / 2, y * 2 + (extrudeY + 1) / 2); +} +class CircleBucket { + constructor(options) { + this.zoom = options.zoom; + this.overscaling = options.overscaling; + this.layers = options.layers; + this.layerIds = this.layers.map(layer => layer.id); + this.index = options.index; + this.hasPattern = false; + this.layoutVertexArray = new StructArrayLayout2i4(); + this.indexArray = new StructArrayLayout3ui6(); + this.segments = new SegmentVector(); + this.programConfigurations = new ProgramConfigurationSet(options.layers, options.zoom); + this.stateDependentLayerIds = this.layers.filter(l => l.isStateDependent()).map(l => l.id); + } + populate(features, options, canonical) { + const styleLayer = this.layers[0]; + const bucketFeatures = []; + let circleSortKey = null; + if (styleLayer.type === 'circle') { + circleSortKey = styleLayer.layout.get('circle-sort-key'); + } + for (const {feature, id, index, sourceLayerIndex} of features) { + const needGeometry = this.layers[0]._featureFilter.needGeometry; + const evaluationFeature = toEvaluationFeature(feature, needGeometry); + if (!this.layers[0]._featureFilter.filter(new EvaluationParameters(this.zoom), evaluationFeature, canonical)) + continue; + const sortKey = circleSortKey ? circleSortKey.evaluate(evaluationFeature, {}, canonical) : undefined; + const bucketFeature = { + id, + properties: feature.properties, + type: feature.type, + sourceLayerIndex, + index, + geometry: needGeometry ? evaluationFeature.geometry : loadGeometry(feature), + patterns: {}, + sortKey + }; + bucketFeatures.push(bucketFeature); + } + if (circleSortKey) { + bucketFeatures.sort((a, b) => { + return a.sortKey - b.sortKey; + }); + } + for (const bucketFeature of bucketFeatures) { + const {geometry, index, sourceLayerIndex} = bucketFeature; + const feature = features[index].feature; + this.addFeature(bucketFeature, geometry, index, canonical); + options.featureIndex.insert(feature, geometry, index, sourceLayerIndex, this.index); + } + } + update(states, vtLayer, imagePositions) { + if (!this.stateDependentLayers.length) + return; + this.programConfigurations.updatePaintArrays(states, vtLayer, this.stateDependentLayers, imagePositions); + } + isEmpty() { + return this.layoutVertexArray.length === 0; + } + uploadPending() { + return !this.uploaded || this.programConfigurations.needsUpload; + } + upload(context) { + if (!this.uploaded) { + this.layoutVertexBuffer = context.createVertexBuffer(this.layoutVertexArray, members); + this.indexBuffer = context.createIndexBuffer(this.indexArray); + } + this.programConfigurations.upload(context); + this.uploaded = true; + } + destroy() { + if (!this.layoutVertexBuffer) + return; + this.layoutVertexBuffer.destroy(); + this.indexBuffer.destroy(); + this.programConfigurations.destroy(); + this.segments.destroy(); + } + addFeature(feature, geometry, index, canonical) { + for (const ring of geometry) { + for (const point of ring) { + const x = point.x; + const y = point.y; + if (x < 0 || x >= EXTENT$1 || y < 0 || y >= EXTENT$1) + continue; + const segment = this.segments.prepareSegment(4, this.layoutVertexArray, this.indexArray, feature.sortKey); + const index = segment.vertexLength; + addCircleVertex(this.layoutVertexArray, x, y, -1, -1); + addCircleVertex(this.layoutVertexArray, x, y, 1, -1); + addCircleVertex(this.layoutVertexArray, x, y, 1, 1); + addCircleVertex(this.layoutVertexArray, x, y, -1, 1); + this.indexArray.emplaceBack(index, index + 1, index + 2); + this.indexArray.emplaceBack(index, index + 3, index + 2); + segment.vertexLength += 4; + segment.primitiveLength += 2; + } + } + this.programConfigurations.populatePaintArrays(this.layoutVertexArray.length, feature, index, {}, canonical); + } +} +register('CircleBucket', CircleBucket, { omit: ['layers'] }); + +function polygonIntersectsPolygon(polygonA, polygonB) { + for (let i = 0; i < polygonA.length; i++) { + if (polygonContainsPoint(polygonB, polygonA[i])) + return true; + } + for (let i = 0; i < polygonB.length; i++) { + if (polygonContainsPoint(polygonA, polygonB[i])) + return true; + } + if (lineIntersectsLine(polygonA, polygonB)) + return true; + return false; +} +function polygonIntersectsBufferedPoint(polygon, point, radius) { + if (polygonContainsPoint(polygon, point)) + return true; + if (pointIntersectsBufferedLine(point, polygon, radius)) + return true; + return false; +} +function polygonIntersectsMultiPolygon(polygon, multiPolygon) { + if (polygon.length === 1) { + return multiPolygonContainsPoint(multiPolygon, polygon[0]); + } + for (let m = 0; m < multiPolygon.length; m++) { + const ring = multiPolygon[m]; + for (let n = 0; n < ring.length; n++) { + if (polygonContainsPoint(polygon, ring[n])) + return true; + } + } + for (let i = 0; i < polygon.length; i++) { + if (multiPolygonContainsPoint(multiPolygon, polygon[i])) + return true; + } + for (let k = 0; k < multiPolygon.length; k++) { + if (lineIntersectsLine(polygon, multiPolygon[k])) + return true; + } + return false; +} +function polygonIntersectsBufferedMultiLine(polygon, multiLine, radius) { + for (let i = 0; i < multiLine.length; i++) { + const line = multiLine[i]; + if (polygon.length >= 3) { + for (let k = 0; k < line.length; k++) { + if (polygonContainsPoint(polygon, line[k])) + return true; + } + } + if (lineIntersectsBufferedLine(polygon, line, radius)) + return true; + } + return false; +} +function lineIntersectsBufferedLine(lineA, lineB, radius) { + if (lineA.length > 1) { + if (lineIntersectsLine(lineA, lineB)) + return true; + for (let j = 0; j < lineB.length; j++) { + if (pointIntersectsBufferedLine(lineB[j], lineA, radius)) + return true; + } + } + for (let k = 0; k < lineA.length; k++) { + if (pointIntersectsBufferedLine(lineA[k], lineB, radius)) + return true; + } + return false; +} +function lineIntersectsLine(lineA, lineB) { + if (lineA.length === 0 || lineB.length === 0) + return false; + for (let i = 0; i < lineA.length - 1; i++) { + const a0 = lineA[i]; + const a1 = lineA[i + 1]; + for (let j = 0; j < lineB.length - 1; j++) { + const b0 = lineB[j]; + const b1 = lineB[j + 1]; + if (lineSegmentIntersectsLineSegment(a0, a1, b0, b1)) + return true; + } + } + return false; +} +function lineSegmentIntersectsLineSegment(a0, a1, b0, b1) { + return isCounterClockwise(a0, b0, b1) !== isCounterClockwise(a1, b0, b1) && isCounterClockwise(a0, a1, b0) !== isCounterClockwise(a0, a1, b1); +} +function pointIntersectsBufferedLine(p, line, radius) { + const radiusSquared = radius * radius; + if (line.length === 1) + return p.distSqr(line[0]) < radiusSquared; + for (let i = 1; i < line.length; i++) { + const v = line[i - 1], w = line[i]; + if (distToSegmentSquared(p, v, w) < radiusSquared) + return true; + } + return false; +} +function distToSegmentSquared(p, v, w) { + const l2 = v.distSqr(w); + if (l2 === 0) + return p.distSqr(v); + const t = ((p.x - v.x) * (w.x - v.x) + (p.y - v.y) * (w.y - v.y)) / l2; + if (t < 0) + return p.distSqr(v); + if (t > 1) + return p.distSqr(w); + return p.distSqr(w.sub(v)._mult(t)._add(v)); +} +function multiPolygonContainsPoint(rings, p) { + let c = false, ring, p1, p2; + for (let k = 0; k < rings.length; k++) { + ring = rings[k]; + for (let i = 0, j = ring.length - 1; i < ring.length; j = i++) { + p1 = ring[i]; + p2 = ring[j]; + if (p1.y > p.y !== p2.y > p.y && p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x) { + c = !c; + } + } + } + return c; +} +function polygonContainsPoint(ring, p) { + let c = false; + for (let i = 0, j = ring.length - 1; i < ring.length; j = i++) { + const p1 = ring[i]; + const p2 = ring[j]; + if (p1.y > p.y !== p2.y > p.y && p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x) { + c = !c; + } + } + return c; +} +function polygonIntersectsBox(ring, boxX1, boxY1, boxX2, boxY2) { + for (const p of ring) { + if (boxX1 <= p.x && boxY1 <= p.y && boxX2 >= p.x && boxY2 >= p.y) + return true; + } + const corners = [ + new pointGeometry(boxX1, boxY1), + new pointGeometry(boxX1, boxY2), + new pointGeometry(boxX2, boxY2), + new pointGeometry(boxX2, boxY1) + ]; + if (ring.length > 2) { + for (const corner of corners) { + if (polygonContainsPoint(ring, corner)) + return true; + } + } + for (let i = 0; i < ring.length - 1; i++) { + const p1 = ring[i]; + const p2 = ring[i + 1]; + if (edgeIntersectsBox(p1, p2, corners)) + return true; + } + return false; +} +function edgeIntersectsBox(e1, e2, corners) { + const tl = corners[0]; + const br = corners[2]; + if (e1.x < tl.x && e2.x < tl.x || e1.x > br.x && e2.x > br.x || e1.y < tl.y && e2.y < tl.y || e1.y > br.y && e2.y > br.y) + return false; + const dir = isCounterClockwise(e1, e2, corners[0]); + return dir !== isCounterClockwise(e1, e2, corners[1]) || dir !== isCounterClockwise(e1, e2, corners[2]) || dir !== isCounterClockwise(e1, e2, corners[3]); +} + +function getMaximumPaintValue(property, layer, bucket) { + const value = layer.paint.get(property).value; + if (value.kind === 'constant') { + return value.value; + } else { + return bucket.programConfigurations.get(layer.id).getMaxValue(property); + } +} +function translateDistance(translate) { + return Math.sqrt(translate[0] * translate[0] + translate[1] * translate[1]); +} +function translate(queryGeometry, translate, translateAnchor, bearing, pixelsToTileUnits) { + if (!translate[0] && !translate[1]) { + return queryGeometry; + } + const pt = pointGeometry.convert(translate)._mult(pixelsToTileUnits); + if (translateAnchor === 'viewport') { + pt._rotate(-bearing); + } + const translated = []; + for (let i = 0; i < queryGeometry.length; i++) { + const point = queryGeometry[i]; + translated.push(point.sub(pt)); + } + return translated; +} +function tilespaceTranslate(translate, translateAnchor, bearing, pixelsToTileUnits) { + const pt = pointGeometry.convert(translate)._mult(pixelsToTileUnits); + if (translateAnchor === 'viewport') { + pt._rotate(-bearing); + } + return pt; +} + +const layout$2 = new Properties({ 'circle-sort-key': new DataDrivenProperty(spec['layout_circle']['circle-sort-key']) }); +const paint$1 = new Properties({ + 'circle-radius': new DataDrivenProperty(spec['paint_circle']['circle-radius']), + 'circle-color': new DataDrivenProperty(spec['paint_circle']['circle-color']), + 'circle-blur': new DataDrivenProperty(spec['paint_circle']['circle-blur']), + 'circle-opacity': new DataDrivenProperty(spec['paint_circle']['circle-opacity']), + 'circle-translate': new DataConstantProperty(spec['paint_circle']['circle-translate']), + 'circle-translate-anchor': new DataConstantProperty(spec['paint_circle']['circle-translate-anchor']), + 'circle-pitch-scale': new DataConstantProperty(spec['paint_circle']['circle-pitch-scale']), + 'circle-pitch-alignment': new DataConstantProperty(spec['paint_circle']['circle-pitch-alignment']), + 'circle-stroke-width': new DataDrivenProperty(spec['paint_circle']['circle-stroke-width']), + 'circle-stroke-color': new DataDrivenProperty(spec['paint_circle']['circle-stroke-color']), + 'circle-stroke-opacity': new DataDrivenProperty(spec['paint_circle']['circle-stroke-opacity']) +}); +var properties = { + paint: paint$1, + layout: layout$2 +}; + +var EPSILON = 0.000001; +var ARRAY_TYPE = typeof Float32Array !== 'undefined' ? Float32Array : Array; +if (!Math.hypot) + Math.hypot = function () { + var y = 0, i = arguments.length; + while (i--) { + y += arguments[i] * arguments[i]; + } + return Math.sqrt(y); + }; + +function create() { + var out = new ARRAY_TYPE(4); + if (ARRAY_TYPE != Float32Array) { + out[1] = 0; + out[2] = 0; + } + out[0] = 1; + out[3] = 1; + return out; +} +function rotate(out, a, rad) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + var s = Math.sin(rad); + var c = Math.cos(rad); + out[0] = a0 * c + a2 * s; + out[1] = a1 * c + a3 * s; + out[2] = a0 * -s + a2 * c; + out[3] = a1 * -s + a3 * c; + return out; +} + +function create$1() { + var out = new ARRAY_TYPE(9); + if (ARRAY_TYPE != Float32Array) { + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[5] = 0; + out[6] = 0; + out[7] = 0; + } + out[0] = 1; + out[4] = 1; + out[8] = 1; + return out; +} +function fromMat4(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[4]; + out[4] = a[5]; + out[5] = a[6]; + out[6] = a[8]; + out[7] = a[9]; + out[8] = a[10]; + return out; +} +function fromRotation(out, rad) { + var s = Math.sin(rad), c = Math.cos(rad); + out[0] = c; + out[1] = s; + out[2] = 0; + out[3] = -s; + out[4] = c; + out[5] = 0; + out[6] = 0; + out[7] = 0; + out[8] = 1; + return out; +} + +function create$2() { + var out = new ARRAY_TYPE(16); + if (ARRAY_TYPE != Float32Array) { + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + } + out[0] = 1; + out[5] = 1; + out[10] = 1; + out[15] = 1; + return out; +} +function clone$1(a) { + var out = new ARRAY_TYPE(16); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; +} +function identity(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +} +function invert(out, a) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3]; + var a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7]; + var a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11]; + var a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + var b00 = a00 * a11 - a01 * a10; + var b01 = a00 * a12 - a02 * a10; + var b02 = a00 * a13 - a03 * a10; + var b03 = a01 * a12 - a02 * a11; + var b04 = a01 * a13 - a03 * a11; + var b05 = a02 * a13 - a03 * a12; + var b06 = a20 * a31 - a21 * a30; + var b07 = a20 * a32 - a22 * a30; + var b08 = a20 * a33 - a23 * a30; + var b09 = a21 * a32 - a22 * a31; + var b10 = a21 * a33 - a23 * a31; + var b11 = a22 * a33 - a23 * a32; + var det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; + if (!det) { + return null; + } + det = 1 / det; + out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det; + out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det; + out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det; + out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det; + out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det; + out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det; + out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det; + out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det; + out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det; + out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det; + out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det; + out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det; + out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det; + out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det; + out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det; + out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det; + return out; +} +function multiply(out, a, b) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3]; + var a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7]; + var a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11]; + var a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + out[0] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30; + out[1] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31; + out[2] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32; + out[3] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33; + b0 = b[4]; + b1 = b[5]; + b2 = b[6]; + b3 = b[7]; + out[4] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30; + out[5] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31; + out[6] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32; + out[7] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33; + b0 = b[8]; + b1 = b[9]; + b2 = b[10]; + b3 = b[11]; + out[8] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30; + out[9] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31; + out[10] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32; + out[11] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33; + b0 = b[12]; + b1 = b[13]; + b2 = b[14]; + b3 = b[15]; + out[12] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30; + out[13] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31; + out[14] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32; + out[15] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33; + return out; +} +function translate$1(out, a, v) { + var x = v[0], y = v[1], z = v[2]; + var a00, a01, a02, a03; + var a10, a11, a12, a13; + var a20, a21, a22, a23; + if (a === out) { + out[12] = a[0] * x + a[4] * y + a[8] * z + a[12]; + out[13] = a[1] * x + a[5] * y + a[9] * z + a[13]; + out[14] = a[2] * x + a[6] * y + a[10] * z + a[14]; + out[15] = a[3] * x + a[7] * y + a[11] * z + a[15]; + } else { + a00 = a[0]; + a01 = a[1]; + a02 = a[2]; + a03 = a[3]; + a10 = a[4]; + a11 = a[5]; + a12 = a[6]; + a13 = a[7]; + a20 = a[8]; + a21 = a[9]; + a22 = a[10]; + a23 = a[11]; + out[0] = a00; + out[1] = a01; + out[2] = a02; + out[3] = a03; + out[4] = a10; + out[5] = a11; + out[6] = a12; + out[7] = a13; + out[8] = a20; + out[9] = a21; + out[10] = a22; + out[11] = a23; + out[12] = a00 * x + a10 * y + a20 * z + a[12]; + out[13] = a01 * x + a11 * y + a21 * z + a[13]; + out[14] = a02 * x + a12 * y + a22 * z + a[14]; + out[15] = a03 * x + a13 * y + a23 * z + a[15]; + } + return out; +} +function scale(out, a, v) { + var x = v[0], y = v[1], z = v[2]; + out[0] = a[0] * x; + out[1] = a[1] * x; + out[2] = a[2] * x; + out[3] = a[3] * x; + out[4] = a[4] * y; + out[5] = a[5] * y; + out[6] = a[6] * y; + out[7] = a[7] * y; + out[8] = a[8] * z; + out[9] = a[9] * z; + out[10] = a[10] * z; + out[11] = a[11] * z; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; +} +function rotateX(out, a, rad) { + var s = Math.sin(rad); + var c = Math.cos(rad); + var a10 = a[4]; + var a11 = a[5]; + var a12 = a[6]; + var a13 = a[7]; + var a20 = a[8]; + var a21 = a[9]; + var a22 = a[10]; + var a23 = a[11]; + if (a !== out) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + out[4] = a10 * c + a20 * s; + out[5] = a11 * c + a21 * s; + out[6] = a12 * c + a22 * s; + out[7] = a13 * c + a23 * s; + out[8] = a20 * c - a10 * s; + out[9] = a21 * c - a11 * s; + out[10] = a22 * c - a12 * s; + out[11] = a23 * c - a13 * s; + return out; +} +function rotateY(out, a, rad) { + var s = Math.sin(rad); + var c = Math.cos(rad); + var a00 = a[0]; + var a01 = a[1]; + var a02 = a[2]; + var a03 = a[3]; + var a20 = a[8]; + var a21 = a[9]; + var a22 = a[10]; + var a23 = a[11]; + if (a !== out) { + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + out[0] = a00 * c - a20 * s; + out[1] = a01 * c - a21 * s; + out[2] = a02 * c - a22 * s; + out[3] = a03 * c - a23 * s; + out[8] = a00 * s + a20 * c; + out[9] = a01 * s + a21 * c; + out[10] = a02 * s + a22 * c; + out[11] = a03 * s + a23 * c; + return out; +} +function rotateZ(out, a, rad) { + var s = Math.sin(rad); + var c = Math.cos(rad); + var a00 = a[0]; + var a01 = a[1]; + var a02 = a[2]; + var a03 = a[3]; + var a10 = a[4]; + var a11 = a[5]; + var a12 = a[6]; + var a13 = a[7]; + if (a !== out) { + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + out[0] = a00 * c + a10 * s; + out[1] = a01 * c + a11 * s; + out[2] = a02 * c + a12 * s; + out[3] = a03 * c + a13 * s; + out[4] = a10 * c - a00 * s; + out[5] = a11 * c - a01 * s; + out[6] = a12 * c - a02 * s; + out[7] = a13 * c - a03 * s; + return out; +} +function fromQuat(out, q) { + var x = q[0], y = q[1], z = q[2], w = q[3]; + var x2 = x + x; + var y2 = y + y; + var z2 = z + z; + var xx = x * x2; + var yx = y * x2; + var yy = y * y2; + var zx = z * x2; + var zy = z * y2; + var zz = z * z2; + var wx = w * x2; + var wy = w * y2; + var wz = w * z2; + out[0] = 1 - yy - zz; + out[1] = yx + wz; + out[2] = zx - wy; + out[3] = 0; + out[4] = yx - wz; + out[5] = 1 - xx - zz; + out[6] = zy + wx; + out[7] = 0; + out[8] = zx + wy; + out[9] = zy - wx; + out[10] = 1 - xx - yy; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; +} +function perspective(out, fovy, aspect, near, far) { + var f = 1 / Math.tan(fovy / 2), nf; + out[0] = f / aspect; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = f; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[11] = -1; + out[12] = 0; + out[13] = 0; + out[15] = 0; + if (far != null && far !== Infinity) { + nf = 1 / (near - far); + out[10] = (far + near) * nf; + out[14] = 2 * far * near * nf; + } else { + out[10] = -1; + out[14] = -2 * near; + } + return out; +} +function ortho(out, left, right, bottom, top, near, far) { + var lr = 1 / (left - right); + var bt = 1 / (bottom - top); + var nf = 1 / (near - far); + out[0] = -2 * lr; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = -2 * bt; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 2 * nf; + out[11] = 0; + out[12] = (left + right) * lr; + out[13] = (top + bottom) * bt; + out[14] = (far + near) * nf; + out[15] = 1; + return out; +} +var mul = multiply; + +function create$3() { + var out = new ARRAY_TYPE(3); + if (ARRAY_TYPE != Float32Array) { + out[0] = 0; + out[1] = 0; + out[2] = 0; + } + return out; +} +function clone$2(a) { + var out = new ARRAY_TYPE(3); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + return out; +} +function length(a) { + var x = a[0]; + var y = a[1]; + var z = a[2]; + return Math.hypot(x, y, z); +} +function fromValues(x, y, z) { + var out = new ARRAY_TYPE(3); + out[0] = x; + out[1] = y; + out[2] = z; + return out; +} +function copy(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + return out; +} +function add(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + out[2] = a[2] + b[2]; + return out; +} +function subtract(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + out[2] = a[2] - b[2]; + return out; +} +function multiply$1(out, a, b) { + out[0] = a[0] * b[0]; + out[1] = a[1] * b[1]; + out[2] = a[2] * b[2]; + return out; +} +function divide(out, a, b) { + out[0] = a[0] / b[0]; + out[1] = a[1] / b[1]; + out[2] = a[2] / b[2]; + return out; +} +function scale$1(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + return out; +} +function scaleAndAdd(out, a, b, scale) { + out[0] = a[0] + b[0] * scale; + out[1] = a[1] + b[1] * scale; + out[2] = a[2] + b[2] * scale; + return out; +} +function normalize(out, a) { + var x = a[0]; + var y = a[1]; + var z = a[2]; + var len = x * x + y * y + z * z; + if (len > 0) { + len = 1 / Math.sqrt(len); + } + out[0] = a[0] * len; + out[1] = a[1] * len; + out[2] = a[2] * len; + return out; +} +function dot(a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; +} +function cross(out, a, b) { + var ax = a[0], ay = a[1], az = a[2]; + var bx = b[0], by = b[1], bz = b[2]; + out[0] = ay * bz - az * by; + out[1] = az * bx - ax * bz; + out[2] = ax * by - ay * bx; + return out; +} +function transformMat4(out, a, m) { + var x = a[0], y = a[1], z = a[2]; + var w = m[3] * x + m[7] * y + m[11] * z + m[15]; + w = w || 1; + out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w; + out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w; + out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w; + return out; +} +function transformMat3(out, a, m) { + var x = a[0], y = a[1], z = a[2]; + out[0] = x * m[0] + y * m[3] + z * m[6]; + out[1] = x * m[1] + y * m[4] + z * m[7]; + out[2] = x * m[2] + y * m[5] + z * m[8]; + return out; +} +function transformQuat(out, a, q) { + var qx = q[0], qy = q[1], qz = q[2], qw = q[3]; + var x = a[0], y = a[1], z = a[2]; + var uvx = qy * z - qz * y, uvy = qz * x - qx * z, uvz = qx * y - qy * x; + var uuvx = qy * uvz - qz * uvy, uuvy = qz * uvx - qx * uvz, uuvz = qx * uvy - qy * uvx; + var w2 = qw * 2; + uvx *= w2; + uvy *= w2; + uvz *= w2; + uuvx *= 2; + uuvy *= 2; + uuvz *= 2; + out[0] = x + uvx + uuvx; + out[1] = y + uvy + uuvy; + out[2] = z + uvz + uuvz; + return out; +} +function exactEquals(a, b) { + return a[0] === b[0] && a[1] === b[1] && a[2] === b[2]; +} +var sub = subtract; +var mul$1 = multiply$1; +var div = divide; +var len = length; +var forEach = function () { + var vec = create$3(); + return function (a, stride, offset, count, fn, arg) { + var i, l; + if (!stride) { + stride = 3; + } + if (!offset) { + offset = 0; + } + if (count) { + l = Math.min(count * stride + offset, a.length); + } else { + l = a.length; + } + for (i = offset; i < l; i += stride) { + vec[0] = a[i]; + vec[1] = a[i + 1]; + vec[2] = a[i + 2]; + fn(vec, vec, arg); + a[i] = vec[0]; + a[i + 1] = vec[1]; + a[i + 2] = vec[2]; + } + return a; + }; +}(); + +function create$4() { + var out = new ARRAY_TYPE(4); + if (ARRAY_TYPE != Float32Array) { + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 0; + } + return out; +} +function multiply$2(out, a, b) { + out[0] = a[0] * b[0]; + out[1] = a[1] * b[1]; + out[2] = a[2] * b[2]; + out[3] = a[3] * b[3]; + return out; +} +function scale$2(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + out[3] = a[3] * b; + return out; +} +function length$1(a) { + var x = a[0]; + var y = a[1]; + var z = a[2]; + var w = a[3]; + return Math.hypot(x, y, z, w); +} +function normalize$1(out, a) { + var x = a[0]; + var y = a[1]; + var z = a[2]; + var w = a[3]; + var len = x * x + y * y + z * z + w * w; + if (len > 0) { + len = 1 / Math.sqrt(len); + } + out[0] = x * len; + out[1] = y * len; + out[2] = z * len; + out[3] = w * len; + return out; +} +function dot$1(a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]; +} +function transformMat4$1(out, a, m) { + var x = a[0], y = a[1], z = a[2], w = a[3]; + out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w; + out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w; + out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w; + out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w; + return out; +} +function exactEquals$1(a, b) { + return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3]; +} +var mul$2 = multiply$2; +var forEach$1 = function () { + var vec = create$4(); + return function (a, stride, offset, count, fn, arg) { + var i, l; + if (!stride) { + stride = 4; + } + if (!offset) { + offset = 0; + } + if (count) { + l = Math.min(count * stride + offset, a.length); + } else { + l = a.length; + } + for (i = offset; i < l; i += stride) { + vec[0] = a[i]; + vec[1] = a[i + 1]; + vec[2] = a[i + 2]; + vec[3] = a[i + 3]; + fn(vec, vec, arg); + a[i] = vec[0]; + a[i + 1] = vec[1]; + a[i + 2] = vec[2]; + a[i + 3] = vec[3]; + } + return a; + }; +}(); + +function create$5() { + var out = new ARRAY_TYPE(4); + if (ARRAY_TYPE != Float32Array) { + out[0] = 0; + out[1] = 0; + out[2] = 0; + } + out[3] = 1; + return out; +} +function identity$1(out) { + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; +} +function setAxisAngle(out, axis, rad) { + rad = rad * 0.5; + var s = Math.sin(rad); + out[0] = s * axis[0]; + out[1] = s * axis[1]; + out[2] = s * axis[2]; + out[3] = Math.cos(rad); + return out; +} +function rotateX$1(out, a, rad) { + rad *= 0.5; + var ax = a[0], ay = a[1], az = a[2], aw = a[3]; + var bx = Math.sin(rad), bw = Math.cos(rad); + out[0] = ax * bw + aw * bx; + out[1] = ay * bw + az * bx; + out[2] = az * bw - ay * bx; + out[3] = aw * bw - ax * bx; + return out; +} +function rotateY$1(out, a, rad) { + rad *= 0.5; + var ax = a[0], ay = a[1], az = a[2], aw = a[3]; + var by = Math.sin(rad), bw = Math.cos(rad); + out[0] = ax * bw - az * by; + out[1] = ay * bw + aw * by; + out[2] = az * bw + ax * by; + out[3] = aw * bw - ay * by; + return out; +} +function rotateZ$1(out, a, rad) { + rad *= 0.5; + var ax = a[0], ay = a[1], az = a[2], aw = a[3]; + var bz = Math.sin(rad), bw = Math.cos(rad); + out[0] = ax * bw + ay * bz; + out[1] = ay * bw - ax * bz; + out[2] = az * bw + aw * bz; + out[3] = aw * bw - az * bz; + return out; +} +function slerp(out, a, b, t) { + var ax = a[0], ay = a[1], az = a[2], aw = a[3]; + var bx = b[0], by = b[1], bz = b[2], bw = b[3]; + var omega, cosom, sinom, scale0, scale1; + cosom = ax * bx + ay * by + az * bz + aw * bw; + if (cosom < 0) { + cosom = -cosom; + bx = -bx; + by = -by; + bz = -bz; + bw = -bw; + } + if (1 - cosom > EPSILON) { + omega = Math.acos(cosom); + sinom = Math.sin(omega); + scale0 = Math.sin((1 - t) * omega) / sinom; + scale1 = Math.sin(t * omega) / sinom; + } else { + scale0 = 1 - t; + scale1 = t; + } + out[0] = scale0 * ax + scale1 * bx; + out[1] = scale0 * ay + scale1 * by; + out[2] = scale0 * az + scale1 * bz; + out[3] = scale0 * aw + scale1 * bw; + return out; +} +function conjugate(out, a) { + out[0] = -a[0]; + out[1] = -a[1]; + out[2] = -a[2]; + out[3] = a[3]; + return out; +} +function fromMat3(out, m) { + var fTrace = m[0] + m[4] + m[8]; + var fRoot; + if (fTrace > 0) { + fRoot = Math.sqrt(fTrace + 1); + out[3] = 0.5 * fRoot; + fRoot = 0.5 / fRoot; + out[0] = (m[5] - m[7]) * fRoot; + out[1] = (m[6] - m[2]) * fRoot; + out[2] = (m[1] - m[3]) * fRoot; + } else { + var i = 0; + if (m[4] > m[0]) + i = 1; + if (m[8] > m[i * 3 + i]) + i = 2; + var j = (i + 1) % 3; + var k = (i + 2) % 3; + fRoot = Math.sqrt(m[i * 3 + i] - m[j * 3 + j] - m[k * 3 + k] + 1); + out[i] = 0.5 * fRoot; + fRoot = 0.5 / fRoot; + out[3] = (m[j * 3 + k] - m[k * 3 + j]) * fRoot; + out[j] = (m[j * 3 + i] + m[i * 3 + j]) * fRoot; + out[k] = (m[k * 3 + i] + m[i * 3 + k]) * fRoot; + } + return out; +} +var length$2 = length$1; +var normalize$2 = normalize$1; +var exactEquals$2 = exactEquals$1; +var rotationTo = function () { + var tmpvec3 = create$3(); + var xUnitVec3 = fromValues(1, 0, 0); + var yUnitVec3 = fromValues(0, 1, 0); + return function (out, a, b) { + var dot$1 = dot(a, b); + if (dot$1 < -0.999999) { + cross(tmpvec3, xUnitVec3, a); + if (len(tmpvec3) < 0.000001) + cross(tmpvec3, yUnitVec3, a); + normalize(tmpvec3, tmpvec3); + setAxisAngle(out, tmpvec3, Math.PI); + return out; + } else if (dot$1 > 0.999999) { + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; + } else { + cross(tmpvec3, a, b); + out[0] = tmpvec3[0]; + out[1] = tmpvec3[1]; + out[2] = tmpvec3[2]; + out[3] = 1 + dot$1; + return normalize$2(out, out); + } + }; +}(); +var sqlerp = function () { + var temp1 = create$5(); + var temp2 = create$5(); + return function (out, a, b, c, d, t) { + slerp(temp1, a, d, t); + slerp(temp2, b, c, t); + slerp(out, temp1, temp2, 2 * t * (1 - t)); + return out; + }; +}(); +var setAxes = function () { + var matr = create$1(); + return function (out, view, right, up) { + matr[0] = right[0]; + matr[3] = right[1]; + matr[6] = right[2]; + matr[1] = up[0]; + matr[4] = up[1]; + matr[7] = up[2]; + matr[2] = -view[0]; + matr[5] = -view[1]; + matr[8] = -view[2]; + return normalize$2(out, fromMat3(out, matr)); + }; +}(); + +class Ray { + constructor(pos_, dir_) { + this.pos = pos_; + this.dir = dir_; + } + intersectsPlane(pt, normal, out) { + const D = dot(normal, this.dir); + if (Math.abs(D) < 0.000001) { + return false; + } + const t = dot(sub(create$3(), pt, this.pos), normal) / D; + const intersection = scaleAndAdd(create$3(), this.pos, this.dir, t); + copy(out, intersection); + return true; + } +} +class Frustum { + constructor(points_, planes_) { + this.points = points_; + this.planes = planes_; + } + static fromInvProjectionMatrix(invProj, worldSize, zoom) { + const clipSpaceCorners = [ + [ + -1, + 1, + -1, + 1 + ], + [ + 1, + 1, + -1, + 1 + ], + [ + 1, + -1, + -1, + 1 + ], + [ + -1, + -1, + -1, + 1 + ], + [ + -1, + 1, + 1, + 1 + ], + [ + 1, + 1, + 1, + 1 + ], + [ + 1, + -1, + 1, + 1 + ], + [ + -1, + -1, + 1, + 1 + ] + ]; + const scale = Math.pow(2, zoom); + const frustumCoords = clipSpaceCorners.map(v => { + const s = transformMat4$1([], v, invProj); + const k = 1 / s[3] / worldSize * scale; + return mul$2(s, s, [ + k, + k, + 1 / s[3], + k + ]); + }); + const frustumPlanePointIndices = [ + [ + 0, + 1, + 2 + ], + [ + 6, + 5, + 4 + ], + [ + 0, + 3, + 7 + ], + [ + 2, + 1, + 5 + ], + [ + 3, + 2, + 6 + ], + [ + 0, + 4, + 5 + ] + ]; + const frustumPlanes = frustumPlanePointIndices.map(p => { + const a = sub([], frustumCoords[p[0]], frustumCoords[p[1]]); + const b = sub([], frustumCoords[p[2]], frustumCoords[p[1]]); + const n = normalize([], cross([], a, b)); + const d = -dot(n, frustumCoords[p[1]]); + return n.concat(d); + }); + return new Frustum(frustumCoords, frustumPlanes); + } +} +class Aabb { + constructor(min_, max_) { + this.min = min_; + this.max = max_; + this.center = scale$1([], add([], this.min, this.max), 0.5); + } + quadrant(index) { + const split = [ + index % 2 === 0, + index < 2 + ]; + const qMin = clone$2(this.min); + const qMax = clone$2(this.max); + for (let axis = 0; axis < split.length; axis++) { + qMin[axis] = split[axis] ? this.min[axis] : this.center[axis]; + qMax[axis] = split[axis] ? this.center[axis] : this.max[axis]; + } + qMax[2] = this.max[2]; + return new Aabb(qMin, qMax); + } + distanceX(point) { + const pointOnAabb = Math.max(Math.min(this.max[0], point[0]), this.min[0]); + return pointOnAabb - point[0]; + } + distanceY(point) { + const pointOnAabb = Math.max(Math.min(this.max[1], point[1]), this.min[1]); + return pointOnAabb - point[1]; + } + distanceZ(point) { + const pointOnAabb = Math.max(Math.min(this.max[2], point[2]), this.min[2]); + return pointOnAabb - point[2]; + } + intersects(frustum) { + const aabbPoints = [ + [ + this.min[0], + this.min[1], + this.min[2], + 1 + ], + [ + this.max[0], + this.min[1], + this.min[2], + 1 + ], + [ + this.max[0], + this.max[1], + this.min[2], + 1 + ], + [ + this.min[0], + this.max[1], + this.min[2], + 1 + ], + [ + this.min[0], + this.min[1], + this.max[2], + 1 + ], + [ + this.max[0], + this.min[1], + this.max[2], + 1 + ], + [ + this.max[0], + this.max[1], + this.max[2], + 1 + ], + [ + this.min[0], + this.max[1], + this.max[2], + 1 + ] + ]; + let fullyInside = true; + for (let p = 0; p < frustum.planes.length; p++) { + const plane = frustum.planes[p]; + let pointsInside = 0; + for (let i = 0; i < aabbPoints.length; i++) { + pointsInside += dot$1(plane, aabbPoints[i]) >= 0; + } + if (pointsInside === 0) + return 0; + if (pointsInside !== aabbPoints.length) + fullyInside = false; + } + if (fullyInside) + return 2; + for (let axis = 0; axis < 3; axis++) { + let projMin = Number.MAX_VALUE; + let projMax = -Number.MAX_VALUE; + for (let p = 0; p < frustum.points.length; p++) { + const projectedPoint = frustum.points[p][axis] - this.min[axis]; + projMin = Math.min(projMin, projectedPoint); + projMax = Math.max(projMax, projectedPoint); + } + if (projMax < 0 || projMin > this.max[axis] - this.min[axis]) + return 0; + } + return 1; + } +} + +class CircleStyleLayer extends StyleLayer { + constructor(layer) { + super(layer, properties); + } + createBucket(parameters) { + return new CircleBucket(parameters); + } + queryRadius(bucket) { + const circleBucket = bucket; + return getMaximumPaintValue('circle-radius', this, circleBucket) + getMaximumPaintValue('circle-stroke-width', this, circleBucket) + translateDistance(this.paint.get('circle-translate')); + } + queryIntersectsFeature(queryGeometry, feature, featureState, geometry, zoom, transform, pixelPosMatrix, elevationHelper) { + const alignWithMap = this.paint.get('circle-pitch-alignment') === 'map'; + if (alignWithMap && queryGeometry.queryGeometry.isAboveHorizon) + return false; + const translation = tilespaceTranslate(this.paint.get('circle-translate'), this.paint.get('circle-translate-anchor'), transform.angle, queryGeometry.pixelToTileUnitsFactor); + const radius = this.paint.get('circle-radius').evaluate(feature, featureState); + const stroke = this.paint.get('circle-stroke-width').evaluate(feature, featureState); + const size = radius + stroke; + const transformedSize = alignWithMap ? size * queryGeometry.pixelToTileUnitsFactor : size; + for (const ring of geometry) { + for (const point of ring) { + const translatedPoint = point.add(translation); + const z = elevationHelper && transform.elevation ? transform.elevation.exaggeration() * elevationHelper.getElevationAt(translatedPoint.x, translatedPoint.y, true) : 0; + const transformedPoint = alignWithMap ? translatedPoint : projectPoint(translatedPoint, z, pixelPosMatrix); + const transformedPolygon = alignWithMap ? queryGeometry.tilespaceRays.map(r => intersectAtHeight(r, z)) : queryGeometry.queryGeometry.screenGeometry; + let adjustedSize = transformedSize; + const projectedCenter = transformMat4$1([], [ + point.x, + point.y, + z, + 1 + ], pixelPosMatrix); + if (this.paint.get('circle-pitch-scale') === 'viewport' && this.paint.get('circle-pitch-alignment') === 'map') { + adjustedSize *= projectedCenter[3] / transform.cameraToCenterDistance; + } else if (this.paint.get('circle-pitch-scale') === 'map' && this.paint.get('circle-pitch-alignment') === 'viewport') { + adjustedSize *= transform.cameraToCenterDistance / projectedCenter[3]; + } + if (polygonIntersectsBufferedPoint(transformedPolygon, transformedPoint, adjustedSize)) + return true; + } + } + return false; + } + getProgramIds() { + return ['circle']; + } + getProgramConfiguration(zoom) { + return new ProgramConfiguration(this, zoom); + } +} +function projectPoint(p, z, pixelPosMatrix) { + const point = transformMat4$1([], [ + p.x, + p.y, + z, + 1 + ], pixelPosMatrix); + return new pointGeometry(point[0] / point[3], point[1] / point[3]); +} +const origin = fromValues(0, 0, 0); +const up = fromValues(0, 0, 1); +function intersectAtHeight(r, z) { + const intersectionPt = create$3(); + origin[2] = z; + const intersects = r.intersectsPlane(origin, up, intersectionPt); + return new pointGeometry(intersectionPt[0], intersectionPt[1]); +} + +class HeatmapBucket extends CircleBucket { +} +register('HeatmapBucket', HeatmapBucket, { omit: ['layers'] }); + +function createImage(image, {width, height}, channels, data) { + if (!data) { + data = new Uint8Array(width * height * channels); + } else if (data instanceof Uint8ClampedArray) { + data = new Uint8Array(data.buffer); + } else if (data.length !== width * height * channels) { + throw new RangeError('mismatched image size'); + } + image.width = width; + image.height = height; + image.data = data; + return image; +} +function resizeImage(image, {width, height}, channels) { + if (width === image.width && height === image.height) { + return; + } + const newImage = createImage({}, { + width, + height + }, channels); + copyImage(image, newImage, { + x: 0, + y: 0 + }, { + x: 0, + y: 0 + }, { + width: Math.min(image.width, width), + height: Math.min(image.height, height) + }, channels); + image.width = width; + image.height = height; + image.data = newImage.data; +} +function copyImage(srcImg, dstImg, srcPt, dstPt, size, channels) { + if (size.width === 0 || size.height === 0) { + return dstImg; + } + if (size.width > srcImg.width || size.height > srcImg.height || srcPt.x > srcImg.width - size.width || srcPt.y > srcImg.height - size.height) { + throw new RangeError('out of range source coordinates for image copy'); + } + if (size.width > dstImg.width || size.height > dstImg.height || dstPt.x > dstImg.width - size.width || dstPt.y > dstImg.height - size.height) { + throw new RangeError('out of range destination coordinates for image copy'); + } + const srcData = srcImg.data; + const dstData = dstImg.data; + for (let y = 0; y < size.height; y++) { + const srcOffset = ((srcPt.y + y) * srcImg.width + srcPt.x) * channels; + const dstOffset = ((dstPt.y + y) * dstImg.width + dstPt.x) * channels; + for (let i = 0; i < size.width * channels; i++) { + dstData[dstOffset + i] = srcData[srcOffset + i]; + } + } + return dstImg; +} +class AlphaImage { + constructor(size, data) { + createImage(this, size, 1, data); + } + resize(size) { + resizeImage(this, size, 1); + } + clone() { + return new AlphaImage({ + width: this.width, + height: this.height + }, new Uint8Array(this.data)); + } + static copy(srcImg, dstImg, srcPt, dstPt, size) { + copyImage(srcImg, dstImg, srcPt, dstPt, size, 1); + } +} +class RGBAImage { + constructor(size, data) { + createImage(this, size, 4, data); + } + resize(size) { + resizeImage(this, size, 4); + } + replace(data, copy) { + if (copy) { + this.data.set(data); + } else if (data instanceof Uint8ClampedArray) { + this.data = new Uint8Array(data.buffer); + } else { + this.data = data; + } + } + clone() { + return new RGBAImage({ + width: this.width, + height: this.height + }, new Uint8Array(this.data)); + } + static copy(srcImg, dstImg, srcPt, dstPt, size) { + copyImage(srcImg, dstImg, srcPt, dstPt, size, 4); + } +} +register('AlphaImage', AlphaImage); +register('RGBAImage', RGBAImage); + +const paint$2 = new Properties({ + 'heatmap-radius': new DataDrivenProperty(spec['paint_heatmap']['heatmap-radius']), + 'heatmap-weight': new DataDrivenProperty(spec['paint_heatmap']['heatmap-weight']), + 'heatmap-intensity': new DataConstantProperty(spec['paint_heatmap']['heatmap-intensity']), + 'heatmap-color': new ColorRampProperty(spec['paint_heatmap']['heatmap-color']), + 'heatmap-opacity': new DataConstantProperty(spec['paint_heatmap']['heatmap-opacity']) +}); +var properties$1 = { paint: paint$2 }; + +function renderColorRamp(params) { + const evaluationGlobals = {}; + const width = params.resolution || 256; + const height = params.clips ? params.clips.length : 1; + const image = params.image || new RGBAImage({ + width, + height + }); + const renderPixel = (stride, index, progress) => { + evaluationGlobals[params.evaluationKey] = progress; + const pxColor = params.expression.evaluate(evaluationGlobals); + image.data[stride + index + 0] = Math.floor(pxColor.r * 255 / pxColor.a); + image.data[stride + index + 1] = Math.floor(pxColor.g * 255 / pxColor.a); + image.data[stride + index + 2] = Math.floor(pxColor.b * 255 / pxColor.a); + image.data[stride + index + 3] = Math.floor(pxColor.a * 255); + }; + if (!params.clips) { + for (let i = 0, j = 0; i < width; i++, j += 4) { + const progress = i / (width - 1); + renderPixel(0, j, progress); + } + } else { + for (let clip = 0, stride = 0; clip < height; ++clip, stride += width * 4) { + for (let i = 0, j = 0; i < width; i++, j += 4) { + const progress = i / (width - 1); + const {start, end} = params.clips[clip]; + const evaluationProgress = start * (1 - progress) + end * progress; + renderPixel(stride, j, evaluationProgress); + } + } + } + return image; +} + +class HeatmapStyleLayer extends StyleLayer { + createBucket(options) { + return new HeatmapBucket(options); + } + constructor(layer) { + super(layer, properties$1); + this._updateColorRamp(); + } + _handleSpecialPaintPropertyUpdate(name) { + if (name === 'heatmap-color') { + this._updateColorRamp(); + } + } + _updateColorRamp() { + const expression = this._transitionablePaint._values['heatmap-color'].value.expression; + this.colorRamp = renderColorRamp({ + expression, + evaluationKey: 'heatmapDensity', + image: this.colorRamp + }); + this.colorRampTexture = null; + } + resize() { + if (this.heatmapFbo) { + this.heatmapFbo.destroy(); + this.heatmapFbo = null; + } + } + queryRadius() { + return 0; + } + queryIntersectsFeature() { + return false; + } + hasOffscreenPass() { + return this.paint.get('heatmap-opacity') !== 0 && this.visibility !== 'none'; + } + getProgramIds() { + return [ + 'heatmap', + 'heatmapTexture' + ]; + } + getProgramConfiguration(zoom) { + return new ProgramConfiguration(this, zoom); + } +} + +const paint$3 = new Properties({ + 'hillshade-illumination-direction': new DataConstantProperty(spec['paint_hillshade']['hillshade-illumination-direction']), + 'hillshade-illumination-anchor': new DataConstantProperty(spec['paint_hillshade']['hillshade-illumination-anchor']), + 'hillshade-exaggeration': new DataConstantProperty(spec['paint_hillshade']['hillshade-exaggeration']), + 'hillshade-shadow-color': new DataConstantProperty(spec['paint_hillshade']['hillshade-shadow-color']), + 'hillshade-highlight-color': new DataConstantProperty(spec['paint_hillshade']['hillshade-highlight-color']), + 'hillshade-accent-color': new DataConstantProperty(spec['paint_hillshade']['hillshade-accent-color']) +}); +var properties$2 = { paint: paint$3 }; + +class HillshadeStyleLayer extends StyleLayer { + constructor(layer) { + super(layer, properties$2); + } + hasOffscreenPass() { + return this.paint.get('hillshade-exaggeration') !== 0 && this.visibility !== 'none'; + } + getProgramIds() { + return [ + 'hillshade', + 'hillshadePrepare' + ]; + } + getProgramConfiguration(zoom) { + return new ProgramConfiguration(this, zoom); + } +} + +const layout$3 = createLayout([{ + name: 'a_pos', + components: 2, + type: 'Int16' + }], 4); +const {members: members$1, size: size$1, alignment: alignment$1} = layout$3; + +var earcut_1 = earcut; +var default_1 = earcut; +function earcut(data, holeIndices, dim) { + dim = dim || 2; + var hasHoles = holeIndices && holeIndices.length, outerLen = hasHoles ? holeIndices[0] * dim : data.length, outerNode = linkedList(data, 0, outerLen, dim, true), triangles = []; + if (!outerNode || outerNode.next === outerNode.prev) + return triangles; + var minX, minY, maxX, maxY, x, y, invSize; + if (hasHoles) + outerNode = eliminateHoles(data, holeIndices, outerNode, dim); + if (data.length > 80 * dim) { + minX = maxX = data[0]; + minY = maxY = data[1]; + for (var i = dim; i < outerLen; i += dim) { + x = data[i]; + y = data[i + 1]; + if (x < minX) + minX = x; + if (y < minY) + minY = y; + if (x > maxX) + maxX = x; + if (y > maxY) + maxY = y; + } + invSize = Math.max(maxX - minX, maxY - minY); + invSize = invSize !== 0 ? 1 / invSize : 0; + } + earcutLinked(outerNode, triangles, dim, minX, minY, invSize); + return triangles; +} +function linkedList(data, start, end, dim, clockwise) { + var i, last; + if (clockwise === signedArea(data, start, end, dim) > 0) { + for (i = start; i < end; i += dim) + last = insertNode(i, data[i], data[i + 1], last); + } else { + for (i = end - dim; i >= start; i -= dim) + last = insertNode(i, data[i], data[i + 1], last); + } + if (last && equals(last, last.next)) { + removeNode(last); + last = last.next; + } + return last; +} +function filterPoints(start, end) { + if (!start) + return start; + if (!end) + end = start; + var p = start, again; + do { + again = false; + if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) { + removeNode(p); + p = end = p.prev; + if (p === p.next) + break; + again = true; + } else { + p = p.next; + } + } while (again || p !== end); + return end; +} +function earcutLinked(ear, triangles, dim, minX, minY, invSize, pass) { + if (!ear) + return; + if (!pass && invSize) + indexCurve(ear, minX, minY, invSize); + var stop = ear, prev, next; + while (ear.prev !== ear.next) { + prev = ear.prev; + next = ear.next; + if (invSize ? isEarHashed(ear, minX, minY, invSize) : isEar(ear)) { + triangles.push(prev.i / dim); + triangles.push(ear.i / dim); + triangles.push(next.i / dim); + removeNode(ear); + ear = next.next; + stop = next.next; + continue; + } + ear = next; + if (ear === stop) { + if (!pass) { + earcutLinked(filterPoints(ear), triangles, dim, minX, minY, invSize, 1); + } else if (pass === 1) { + ear = cureLocalIntersections(filterPoints(ear), triangles, dim); + earcutLinked(ear, triangles, dim, minX, minY, invSize, 2); + } else if (pass === 2) { + splitEarcut(ear, triangles, dim, minX, minY, invSize); + } + break; + } + } +} +function isEar(ear) { + var a = ear.prev, b = ear, c = ear.next; + if (area(a, b, c) >= 0) + return false; + var p = ear.next.next; + while (p !== ear.prev) { + if (pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) + return false; + p = p.next; + } + return true; +} +function isEarHashed(ear, minX, minY, invSize) { + var a = ear.prev, b = ear, c = ear.next; + if (area(a, b, c) >= 0) + return false; + var minTX = a.x < b.x ? a.x < c.x ? a.x : c.x : b.x < c.x ? b.x : c.x, minTY = a.y < b.y ? a.y < c.y ? a.y : c.y : b.y < c.y ? b.y : c.y, maxTX = a.x > b.x ? a.x > c.x ? a.x : c.x : b.x > c.x ? b.x : c.x, maxTY = a.y > b.y ? a.y > c.y ? a.y : c.y : b.y > c.y ? b.y : c.y; + var minZ = zOrder(minTX, minTY, minX, minY, invSize), maxZ = zOrder(maxTX, maxTY, minX, minY, invSize); + var p = ear.prevZ, n = ear.nextZ; + while (p && p.z >= minZ && n && n.z <= maxZ) { + if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) + return false; + p = p.prevZ; + if (n !== ear.prev && n !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && area(n.prev, n, n.next) >= 0) + return false; + n = n.nextZ; + } + while (p && p.z >= minZ) { + if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) + return false; + p = p.prevZ; + } + while (n && n.z <= maxZ) { + if (n !== ear.prev && n !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && area(n.prev, n, n.next) >= 0) + return false; + n = n.nextZ; + } + return true; +} +function cureLocalIntersections(start, triangles, dim) { + var p = start; + do { + var a = p.prev, b = p.next.next; + if (!equals(a, b) && intersects(a, p, p.next, b) && locallyInside(a, b) && locallyInside(b, a)) { + triangles.push(a.i / dim); + triangles.push(p.i / dim); + triangles.push(b.i / dim); + removeNode(p); + removeNode(p.next); + p = start = b; + } + p = p.next; + } while (p !== start); + return filterPoints(p); +} +function splitEarcut(start, triangles, dim, minX, minY, invSize) { + var a = start; + do { + var b = a.next.next; + while (b !== a.prev) { + if (a.i !== b.i && isValidDiagonal(a, b)) { + var c = splitPolygon(a, b); + a = filterPoints(a, a.next); + c = filterPoints(c, c.next); + earcutLinked(a, triangles, dim, minX, minY, invSize); + earcutLinked(c, triangles, dim, minX, minY, invSize); + return; + } + b = b.next; + } + a = a.next; + } while (a !== start); +} +function eliminateHoles(data, holeIndices, outerNode, dim) { + var queue = [], i, len, start, end, list; + for (i = 0, len = holeIndices.length; i < len; i++) { + start = holeIndices[i] * dim; + end = i < len - 1 ? holeIndices[i + 1] * dim : data.length; + list = linkedList(data, start, end, dim, false); + if (list === list.next) + list.steiner = true; + queue.push(getLeftmost(list)); + } + queue.sort(compareX); + for (i = 0; i < queue.length; i++) { + eliminateHole(queue[i], outerNode); + outerNode = filterPoints(outerNode, outerNode.next); + } + return outerNode; +} +function compareX(a, b) { + return a.x - b.x; +} +function eliminateHole(hole, outerNode) { + outerNode = findHoleBridge(hole, outerNode); + if (outerNode) { + var b = splitPolygon(outerNode, hole); + filterPoints(outerNode, outerNode.next); + filterPoints(b, b.next); + } +} +function findHoleBridge(hole, outerNode) { + var p = outerNode, hx = hole.x, hy = hole.y, qx = -Infinity, m; + do { + if (hy <= p.y && hy >= p.next.y && p.next.y !== p.y) { + var x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y); + if (x <= hx && x > qx) { + qx = x; + if (x === hx) { + if (hy === p.y) + return p; + if (hy === p.next.y) + return p.next; + } + m = p.x < p.next.x ? p : p.next; + } + } + p = p.next; + } while (p !== outerNode); + if (!m) + return null; + if (hx === qx) + return m; + var stop = m, mx = m.x, my = m.y, tanMin = Infinity, tan; + p = m; + do { + if (hx >= p.x && p.x >= mx && hx !== p.x && pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) { + tan = Math.abs(hy - p.y) / (hx - p.x); + if (locallyInside(p, hole) && (tan < tanMin || tan === tanMin && (p.x > m.x || p.x === m.x && sectorContainsSector(m, p)))) { + m = p; + tanMin = tan; + } + } + p = p.next; + } while (p !== stop); + return m; +} +function sectorContainsSector(m, p) { + return area(m.prev, m, p.prev) < 0 && area(p.next, m, m.next) < 0; +} +function indexCurve(start, minX, minY, invSize) { + var p = start; + do { + if (p.z === null) + p.z = zOrder(p.x, p.y, minX, minY, invSize); + p.prevZ = p.prev; + p.nextZ = p.next; + p = p.next; + } while (p !== start); + p.prevZ.nextZ = null; + p.prevZ = null; + sortLinked(p); +} +function sortLinked(list) { + var i, p, q, e, tail, numMerges, pSize, qSize, inSize = 1; + do { + p = list; + list = null; + tail = null; + numMerges = 0; + while (p) { + numMerges++; + q = p; + pSize = 0; + for (i = 0; i < inSize; i++) { + pSize++; + q = q.nextZ; + if (!q) + break; + } + qSize = inSize; + while (pSize > 0 || qSize > 0 && q) { + if (pSize !== 0 && (qSize === 0 || !q || p.z <= q.z)) { + e = p; + p = p.nextZ; + pSize--; + } else { + e = q; + q = q.nextZ; + qSize--; + } + if (tail) + tail.nextZ = e; + else + list = e; + e.prevZ = tail; + tail = e; + } + p = q; + } + tail.nextZ = null; + inSize *= 2; + } while (numMerges > 1); + return list; +} +function zOrder(x, y, minX, minY, invSize) { + x = 32767 * (x - minX) * invSize; + y = 32767 * (y - minY) * invSize; + x = (x | x << 8) & 16711935; + x = (x | x << 4) & 252645135; + x = (x | x << 2) & 858993459; + x = (x | x << 1) & 1431655765; + y = (y | y << 8) & 16711935; + y = (y | y << 4) & 252645135; + y = (y | y << 2) & 858993459; + y = (y | y << 1) & 1431655765; + return x | y << 1; +} +function getLeftmost(start) { + var p = start, leftmost = start; + do { + if (p.x < leftmost.x || p.x === leftmost.x && p.y < leftmost.y) + leftmost = p; + p = p.next; + } while (p !== start); + return leftmost; +} +function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) { + return (cx - px) * (ay - py) - (ax - px) * (cy - py) >= 0 && (ax - px) * (by - py) - (bx - px) * (ay - py) >= 0 && (bx - px) * (cy - py) - (cx - px) * (by - py) >= 0; +} +function isValidDiagonal(a, b) { + return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && (locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b) && (area(a.prev, a, b.prev) || area(a, b.prev, b)) || equals(a, b) && area(a.prev, a, a.next) > 0 && area(b.prev, b, b.next) > 0); +} +function area(p, q, r) { + return (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y); +} +function equals(p1, p2) { + return p1.x === p2.x && p1.y === p2.y; +} +function intersects(p1, q1, p2, q2) { + var o1 = sign(area(p1, q1, p2)); + var o2 = sign(area(p1, q1, q2)); + var o3 = sign(area(p2, q2, p1)); + var o4 = sign(area(p2, q2, q1)); + if (o1 !== o2 && o3 !== o4) + return true; + if (o1 === 0 && onSegment(p1, p2, q1)) + return true; + if (o2 === 0 && onSegment(p1, q2, q1)) + return true; + if (o3 === 0 && onSegment(p2, p1, q2)) + return true; + if (o4 === 0 && onSegment(p2, q1, q2)) + return true; + return false; +} +function onSegment(p, q, r) { + return q.x <= Math.max(p.x, r.x) && q.x >= Math.min(p.x, r.x) && q.y <= Math.max(p.y, r.y) && q.y >= Math.min(p.y, r.y); +} +function sign(num) { + return num > 0 ? 1 : num < 0 ? -1 : 0; +} +function intersectsPolygon(a, b) { + var p = a; + do { + if (p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i && intersects(p, p.next, a, b)) + return true; + p = p.next; + } while (p !== a); + return false; +} +function locallyInside(a, b) { + return area(a.prev, a, a.next) < 0 ? area(a, b, a.next) >= 0 && area(a, a.prev, b) >= 0 : area(a, b, a.prev) < 0 || area(a, a.next, b) < 0; +} +function middleInside(a, b) { + var p = a, inside = false, px = (a.x + b.x) / 2, py = (a.y + b.y) / 2; + do { + if (p.y > py !== p.next.y > py && p.next.y !== p.y && px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x) + inside = !inside; + p = p.next; + } while (p !== a); + return inside; +} +function splitPolygon(a, b) { + var a2 = new Node(a.i, a.x, a.y), b2 = new Node(b.i, b.x, b.y), an = a.next, bp = b.prev; + a.next = b; + b.prev = a; + a2.next = an; + an.prev = a2; + b2.next = a2; + a2.prev = b2; + bp.next = b2; + b2.prev = bp; + return b2; +} +function insertNode(i, x, y, last) { + var p = new Node(i, x, y); + if (!last) { + p.prev = p; + p.next = p; + } else { + p.next = last.next; + p.prev = last; + last.next.prev = p; + last.next = p; + } + return p; +} +function removeNode(p) { + p.next.prev = p.prev; + p.prev.next = p.next; + if (p.prevZ) + p.prevZ.nextZ = p.nextZ; + if (p.nextZ) + p.nextZ.prevZ = p.prevZ; +} +function Node(i, x, y) { + this.i = i; + this.x = x; + this.y = y; + this.prev = null; + this.next = null; + this.z = null; + this.prevZ = null; + this.nextZ = null; + this.steiner = false; +} +earcut.deviation = function (data, holeIndices, dim, triangles) { + var hasHoles = holeIndices && holeIndices.length; + var outerLen = hasHoles ? holeIndices[0] * dim : data.length; + var polygonArea = Math.abs(signedArea(data, 0, outerLen, dim)); + if (hasHoles) { + for (var i = 0, len = holeIndices.length; i < len; i++) { + var start = holeIndices[i] * dim; + var end = i < len - 1 ? holeIndices[i + 1] * dim : data.length; + polygonArea -= Math.abs(signedArea(data, start, end, dim)); + } + } + var trianglesArea = 0; + for (i = 0; i < triangles.length; i += 3) { + var a = triangles[i] * dim; + var b = triangles[i + 1] * dim; + var c = triangles[i + 2] * dim; + trianglesArea += Math.abs((data[a] - data[c]) * (data[b + 1] - data[a + 1]) - (data[a] - data[b]) * (data[c + 1] - data[a + 1])); + } + return polygonArea === 0 && trianglesArea === 0 ? 0 : Math.abs((trianglesArea - polygonArea) / polygonArea); +}; +function signedArea(data, start, end, dim) { + var sum = 0; + for (var i = start, j = end - dim; i < end; i += dim) { + sum += (data[j] - data[i]) * (data[i + 1] + data[j + 1]); + j = i; + } + return sum; +} +earcut.flatten = function (data) { + var dim = data[0][0].length, result = { + vertices: [], + holes: [], + dimensions: dim + }, holeIndex = 0; + for (var i = 0; i < data.length; i++) { + for (var j = 0; j < data[i].length; j++) { + for (var d = 0; d < dim; d++) + result.vertices.push(data[i][j][d]); + } + if (i > 0) { + holeIndex += data[i - 1].length; + result.holes.push(holeIndex); + } + } + return result; +}; +earcut_1.default = default_1; + +function quickselect(arr, k, left, right, compare) { + quickselectStep(arr, k, left || 0, right || arr.length - 1, compare || defaultCompare); +} +function quickselectStep(arr, k, left, right, compare) { + while (right > left) { + if (right - left > 600) { + var n = right - left + 1; + var m = k - left + 1; + var z = Math.log(n); + var s = 0.5 * Math.exp(2 * z / 3); + var sd = 0.5 * Math.sqrt(z * s * (n - s) / n) * (m - n / 2 < 0 ? -1 : 1); + var newLeft = Math.max(left, Math.floor(k - m * s / n + sd)); + var newRight = Math.min(right, Math.floor(k + (n - m) * s / n + sd)); + quickselectStep(arr, k, newLeft, newRight, compare); + } + var t = arr[k]; + var i = left; + var j = right; + swap$1(arr, left, k); + if (compare(arr[right], t) > 0) + swap$1(arr, left, right); + while (i < j) { + swap$1(arr, i, j); + i++; + j--; + while (compare(arr[i], t) < 0) + i++; + while (compare(arr[j], t) > 0) + j--; + } + if (compare(arr[left], t) === 0) + swap$1(arr, left, j); + else { + j++; + swap$1(arr, j, right); + } + if (j <= k) + left = j + 1; + if (k <= j) + right = j - 1; + } +} +function swap$1(arr, i, j) { + var tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; +} +function defaultCompare(a, b) { + return a < b ? -1 : a > b ? 1 : 0; +} + +function classifyRings(rings, maxRings) { + const len = rings.length; + if (len <= 1) + return [rings]; + const polygons = []; + let polygon, ccw; + for (let i = 0; i < len; i++) { + const area = calculateSignedArea(rings[i]); + if (area === 0) + continue; + rings[i].area = Math.abs(area); + if (ccw === undefined) + ccw = area < 0; + if (ccw === area < 0) { + if (polygon) + polygons.push(polygon); + polygon = [rings[i]]; + } else { + polygon.push(rings[i]); + } + } + if (polygon) + polygons.push(polygon); + if (maxRings > 1) { + for (let j = 0; j < polygons.length; j++) { + if (polygons[j].length <= maxRings) + continue; + quickselect(polygons[j], maxRings, 1, polygons[j].length - 1, compareAreas); + polygons[j] = polygons[j].slice(0, maxRings); + } + } + return polygons; +} +function compareAreas(a, b) { + return b.area - a.area; +} + +function hasPattern(type, layers, options) { + const patterns = options.patternDependencies; + let hasPattern = false; + for (const layer of layers) { + const patternProperty = layer.paint.get(`${ type }-pattern`); + if (!patternProperty.isConstant()) { + hasPattern = true; + } + const constantPattern = patternProperty.constantOr(null); + if (constantPattern) { + hasPattern = true; + patterns[constantPattern.to] = true; + patterns[constantPattern.from] = true; + } + } + return hasPattern; +} +function addPatternDependencies(type, layers, patternFeature, zoom, options) { + const patterns = options.patternDependencies; + for (const layer of layers) { + const patternProperty = layer.paint.get(`${ type }-pattern`); + const patternPropertyValue = patternProperty.value; + if (patternPropertyValue.kind !== 'constant') { + let min = patternPropertyValue.evaluate({ zoom: zoom - 1 }, patternFeature, {}, options.availableImages); + let mid = patternPropertyValue.evaluate({ zoom }, patternFeature, {}, options.availableImages); + let max = patternPropertyValue.evaluate({ zoom: zoom + 1 }, patternFeature, {}, options.availableImages); + min = min && min.name ? min.name : min; + mid = mid && mid.name ? mid.name : mid; + max = max && max.name ? max.name : max; + patterns[min] = true; + patterns[mid] = true; + patterns[max] = true; + patternFeature.patterns[layer.id] = { + min, + mid, + max + }; + } + } + return patternFeature; +} + +const EARCUT_MAX_RINGS = 500; +class FillBucket { + constructor(options) { + this.zoom = options.zoom; + this.overscaling = options.overscaling; + this.layers = options.layers; + this.layerIds = this.layers.map(layer => layer.id); + this.index = options.index; + this.hasPattern = false; + this.patternFeatures = []; + this.layoutVertexArray = new StructArrayLayout2i4(); + this.indexArray = new StructArrayLayout3ui6(); + this.indexArray2 = new StructArrayLayout2ui4(); + this.programConfigurations = new ProgramConfigurationSet(options.layers, options.zoom); + this.segments = new SegmentVector(); + this.segments2 = new SegmentVector(); + this.stateDependentLayerIds = this.layers.filter(l => l.isStateDependent()).map(l => l.id); + } + populate(features, options, canonical) { + this.hasPattern = hasPattern('fill', this.layers, options); + const fillSortKey = this.layers[0].layout.get('fill-sort-key'); + const bucketFeatures = []; + for (const {feature, id, index, sourceLayerIndex} of features) { + const needGeometry = this.layers[0]._featureFilter.needGeometry; + const evaluationFeature = toEvaluationFeature(feature, needGeometry); + if (!this.layers[0]._featureFilter.filter(new EvaluationParameters(this.zoom), evaluationFeature, canonical)) + continue; + const sortKey = fillSortKey ? fillSortKey.evaluate(evaluationFeature, {}, canonical, options.availableImages) : undefined; + const bucketFeature = { + id, + properties: feature.properties, + type: feature.type, + sourceLayerIndex, + index, + geometry: needGeometry ? evaluationFeature.geometry : loadGeometry(feature), + patterns: {}, + sortKey + }; + bucketFeatures.push(bucketFeature); + } + if (fillSortKey) { + bucketFeatures.sort((a, b) => { + return a.sortKey - b.sortKey; + }); + } + for (const bucketFeature of bucketFeatures) { + const {geometry, index, sourceLayerIndex} = bucketFeature; + if (this.hasPattern) { + const patternFeature = addPatternDependencies('fill', this.layers, bucketFeature, this.zoom, options); + this.patternFeatures.push(patternFeature); + } else { + this.addFeature(bucketFeature, geometry, index, canonical, {}); + } + const feature = features[index].feature; + options.featureIndex.insert(feature, geometry, index, sourceLayerIndex, this.index); + } + } + update(states, vtLayer, imagePositions) { + if (!this.stateDependentLayers.length) + return; + this.programConfigurations.updatePaintArrays(states, vtLayer, this.stateDependentLayers, imagePositions); + } + addFeatures(options, canonical, imagePositions) { + for (const feature of this.patternFeatures) { + this.addFeature(feature, feature.geometry, feature.index, canonical, imagePositions); + } + } + isEmpty() { + return this.layoutVertexArray.length === 0; + } + uploadPending() { + return !this.uploaded || this.programConfigurations.needsUpload; + } + upload(context) { + if (!this.uploaded) { + this.layoutVertexBuffer = context.createVertexBuffer(this.layoutVertexArray, members$1); + this.indexBuffer = context.createIndexBuffer(this.indexArray); + this.indexBuffer2 = context.createIndexBuffer(this.indexArray2); + } + this.programConfigurations.upload(context); + this.uploaded = true; + } + destroy() { + if (!this.layoutVertexBuffer) + return; + this.layoutVertexBuffer.destroy(); + this.indexBuffer.destroy(); + this.indexBuffer2.destroy(); + this.programConfigurations.destroy(); + this.segments.destroy(); + this.segments2.destroy(); + } + addFeature(feature, geometry, index, canonical, imagePositions) { + for (const polygon of classifyRings(geometry, EARCUT_MAX_RINGS)) { + let numVertices = 0; + for (const ring of polygon) { + numVertices += ring.length; + } + const triangleSegment = this.segments.prepareSegment(numVertices, this.layoutVertexArray, this.indexArray); + const triangleIndex = triangleSegment.vertexLength; + const flattened = []; + const holeIndices = []; + for (const ring of polygon) { + if (ring.length === 0) { + continue; + } + if (ring !== polygon[0]) { + holeIndices.push(flattened.length / 2); + } + const lineSegment = this.segments2.prepareSegment(ring.length, this.layoutVertexArray, this.indexArray2); + const lineIndex = lineSegment.vertexLength; + this.layoutVertexArray.emplaceBack(ring[0].x, ring[0].y); + this.indexArray2.emplaceBack(lineIndex + ring.length - 1, lineIndex); + flattened.push(ring[0].x); + flattened.push(ring[0].y); + for (let i = 1; i < ring.length; i++) { + this.layoutVertexArray.emplaceBack(ring[i].x, ring[i].y); + this.indexArray2.emplaceBack(lineIndex + i - 1, lineIndex + i); + flattened.push(ring[i].x); + flattened.push(ring[i].y); + } + lineSegment.vertexLength += ring.length; + lineSegment.primitiveLength += ring.length; + } + const indices = earcut_1(flattened, holeIndices); + for (let i = 0; i < indices.length; i += 3) { + this.indexArray.emplaceBack(triangleIndex + indices[i], triangleIndex + indices[i + 1], triangleIndex + indices[i + 2]); + } + triangleSegment.vertexLength += numVertices; + triangleSegment.primitiveLength += indices.length / 3; + } + this.programConfigurations.populatePaintArrays(this.layoutVertexArray.length, feature, index, imagePositions, canonical); + } +} +register('FillBucket', FillBucket, { + omit: [ + 'layers', + 'patternFeatures' + ] +}); + +const layout$4 = new Properties({ 'fill-sort-key': new DataDrivenProperty(spec['layout_fill']['fill-sort-key']) }); +const paint$4 = new Properties({ + 'fill-antialias': new DataConstantProperty(spec['paint_fill']['fill-antialias']), + 'fill-opacity': new DataDrivenProperty(spec['paint_fill']['fill-opacity']), + 'fill-color': new DataDrivenProperty(spec['paint_fill']['fill-color']), + 'fill-outline-color': new DataDrivenProperty(spec['paint_fill']['fill-outline-color']), + 'fill-translate': new DataConstantProperty(spec['paint_fill']['fill-translate']), + 'fill-translate-anchor': new DataConstantProperty(spec['paint_fill']['fill-translate-anchor']), + 'fill-pattern': new CrossFadedDataDrivenProperty(spec['paint_fill']['fill-pattern']) +}); +var properties$3 = { + paint: paint$4, + layout: layout$4 +}; + +class FillStyleLayer extends StyleLayer { + constructor(layer) { + super(layer, properties$3); + } + getProgramIds() { + const pattern = this.paint.get('fill-pattern'); + const image = pattern && pattern.constantOr(1); + const ids = [image ? 'fillPattern' : 'fill']; + if (this.paint.get('fill-antialias')) { + ids.push(image && !this.getPaintProperty('fill-outline-color') ? 'fillOutlinePattern' : 'fillOutline'); + } + return ids; + } + getProgramConfiguration(zoom) { + return new ProgramConfiguration(this, zoom); + } + recalculate(parameters, availableImages) { + super.recalculate(parameters, availableImages); + const outlineColor = this.paint._values['fill-outline-color']; + if (outlineColor.value.kind === 'constant' && outlineColor.value.value === undefined) { + this.paint._values['fill-outline-color'] = this.paint._values['fill-color']; + } + } + createBucket(parameters) { + return new FillBucket(parameters); + } + queryRadius() { + return translateDistance(this.paint.get('fill-translate')); + } + queryIntersectsFeature(queryGeometry, feature, featureState, geometry, zoom, transform) { + if (queryGeometry.queryGeometry.isAboveHorizon) + return false; + const translatedPolygon = translate(queryGeometry.tilespaceGeometry, this.paint.get('fill-translate'), this.paint.get('fill-translate-anchor'), transform.angle, queryGeometry.pixelToTileUnitsFactor); + return polygonIntersectsMultiPolygon(translatedPolygon, geometry); + } + isTileClipped() { + return true; + } +} + +const fillExtrusionAttributes = createLayout([{ + name: 'a_pos_normal_ed', + components: 4, + type: 'Int16' + }]); +const centroidAttributes = createLayout([{ + name: 'a_centroid_pos', + components: 2, + type: 'Uint16' + }]); +const {members: members$2, size: size$2, alignment: alignment$2} = fillExtrusionAttributes; + +var vectortilefeature = VectorTileFeature; +function VectorTileFeature(pbf, end, extent, keys, values) { + this.properties = {}; + this.extent = extent; + this.type = 0; + this._pbf = pbf; + this._geometry = -1; + this._keys = keys; + this._values = values; + pbf.readFields(readFeature, this, end); +} +function readFeature(tag, feature, pbf) { + if (tag == 1) + feature.id = pbf.readVarint(); + else if (tag == 2) + readTag(pbf, feature); + else if (tag == 3) + feature.type = pbf.readVarint(); + else if (tag == 4) + feature._geometry = pbf.pos; +} +function readTag(pbf, feature) { + var end = pbf.readVarint() + pbf.pos; + while (pbf.pos < end) { + var key = feature._keys[pbf.readVarint()], value = feature._values[pbf.readVarint()]; + feature.properties[key] = value; + } +} +VectorTileFeature.types = [ + 'Unknown', + 'Point', + 'LineString', + 'Polygon' +]; +VectorTileFeature.prototype.loadGeometry = function () { + var pbf = this._pbf; + pbf.pos = this._geometry; + var end = pbf.readVarint() + pbf.pos, cmd = 1, length = 0, x = 0, y = 0, lines = [], line; + while (pbf.pos < end) { + if (length <= 0) { + var cmdLen = pbf.readVarint(); + cmd = cmdLen & 7; + length = cmdLen >> 3; + } + length--; + if (cmd === 1 || cmd === 2) { + x += pbf.readSVarint(); + y += pbf.readSVarint(); + if (cmd === 1) { + if (line) + lines.push(line); + line = []; + } + line.push(new pointGeometry(x, y)); + } else if (cmd === 7) { + if (line) { + line.push(line[0].clone()); + } + } else { + throw new Error('unknown command ' + cmd); + } + } + if (line) + lines.push(line); + return lines; +}; +VectorTileFeature.prototype.bbox = function () { + var pbf = this._pbf; + pbf.pos = this._geometry; + var end = pbf.readVarint() + pbf.pos, cmd = 1, length = 0, x = 0, y = 0, x1 = Infinity, x2 = -Infinity, y1 = Infinity, y2 = -Infinity; + while (pbf.pos < end) { + if (length <= 0) { + var cmdLen = pbf.readVarint(); + cmd = cmdLen & 7; + length = cmdLen >> 3; + } + length--; + if (cmd === 1 || cmd === 2) { + x += pbf.readSVarint(); + y += pbf.readSVarint(); + if (x < x1) + x1 = x; + if (x > x2) + x2 = x; + if (y < y1) + y1 = y; + if (y > y2) + y2 = y; + } else if (cmd !== 7) { + throw new Error('unknown command ' + cmd); + } + } + return [ + x1, + y1, + x2, + y2 + ]; +}; +VectorTileFeature.prototype.toGeoJSON = function (x, y, z) { + var size = this.extent * Math.pow(2, z), x0 = this.extent * x, y0 = this.extent * y, coords = this.loadGeometry(), type = VectorTileFeature.types[this.type], i, j; + function project(line) { + for (var j = 0; j < line.length; j++) { + var p = line[j], y2 = 180 - (p.y + y0) * 360 / size; + line[j] = [ + (p.x + x0) * 360 / size - 180, + 360 / Math.PI * Math.atan(Math.exp(y2 * Math.PI / 180)) - 90 + ]; + } + } + switch (this.type) { + case 1: + var points = []; + for (i = 0; i < coords.length; i++) { + points[i] = coords[i][0]; + } + coords = points; + project(coords); + break; + case 2: + for (i = 0; i < coords.length; i++) { + project(coords[i]); + } + break; + case 3: + coords = classifyRings$1(coords); + for (i = 0; i < coords.length; i++) { + for (j = 0; j < coords[i].length; j++) { + project(coords[i][j]); + } + } + break; + } + if (coords.length === 1) { + coords = coords[0]; + } else { + type = 'Multi' + type; + } + var result = { + type: 'Feature', + geometry: { + type: type, + coordinates: coords + }, + properties: this.properties + }; + if ('id' in this) { + result.id = this.id; + } + return result; +}; +function classifyRings$1(rings) { + var len = rings.length; + if (len <= 1) + return [rings]; + var polygons = [], polygon, ccw; + for (var i = 0; i < len; i++) { + var area = signedArea$1(rings[i]); + if (area === 0) + continue; + if (ccw === undefined) + ccw = area < 0; + if (ccw === area < 0) { + if (polygon) + polygons.push(polygon); + polygon = [rings[i]]; + } else { + polygon.push(rings[i]); + } + } + if (polygon) + polygons.push(polygon); + return polygons; +} +function signedArea$1(ring) { + var sum = 0; + for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) { + p1 = ring[i]; + p2 = ring[j]; + sum += (p2.x - p1.x) * (p1.y + p2.y); + } + return sum; +} + +var vectortilelayer = VectorTileLayer; +function VectorTileLayer(pbf, end) { + this.version = 1; + this.name = null; + this.extent = 4096; + this.length = 0; + this._pbf = pbf; + this._keys = []; + this._values = []; + this._features = []; + pbf.readFields(readLayer, this, end); + this.length = this._features.length; +} +function readLayer(tag, layer, pbf) { + if (tag === 15) + layer.version = pbf.readVarint(); + else if (tag === 1) + layer.name = pbf.readString(); + else if (tag === 5) + layer.extent = pbf.readVarint(); + else if (tag === 2) + layer._features.push(pbf.pos); + else if (tag === 3) + layer._keys.push(pbf.readString()); + else if (tag === 4) + layer._values.push(readValueMessage(pbf)); +} +function readValueMessage(pbf) { + var value = null, end = pbf.readVarint() + pbf.pos; + while (pbf.pos < end) { + var tag = pbf.readVarint() >> 3; + value = tag === 1 ? pbf.readString() : tag === 2 ? pbf.readFloat() : tag === 3 ? pbf.readDouble() : tag === 4 ? pbf.readVarint64() : tag === 5 ? pbf.readVarint() : tag === 6 ? pbf.readSVarint() : tag === 7 ? pbf.readBoolean() : null; + } + return value; +} +VectorTileLayer.prototype.feature = function (i) { + if (i < 0 || i >= this._features.length) + throw new Error('feature index out of bounds'); + this._pbf.pos = this._features[i]; + var end = this._pbf.readVarint() + this._pbf.pos; + return new vectortilefeature(this._pbf, end, this.extent, this._keys, this._values); +}; + +var vectortile = VectorTile; +function VectorTile(pbf, end) { + this.layers = pbf.readFields(readTile, {}, end); +} +function readTile(tag, layers, pbf) { + if (tag === 3) { + var layer = new vectortilelayer(pbf, pbf.readVarint() + pbf.pos); + if (layer.length) + layers[layer.name] = layer; + } +} + +var VectorTile$1 = vectortile; +var VectorTileFeature$1 = vectortilefeature; +var VectorTileLayer$1 = vectortilelayer; + +var vectorTile = { + VectorTile: VectorTile$1, + VectorTileFeature: VectorTileFeature$1, + VectorTileLayer: VectorTileLayer$1 +}; + +const vectorTileFeatureTypes = vectorTile.VectorTileFeature.types; +const EARCUT_MAX_RINGS$1 = 500; +const FACTOR = Math.pow(2, 13); +const ELEVATION_SCALE = 7.3; +function addVertex(vertexArray, x, y, nxRatio, nySign, normalUp, top, e) { + vertexArray.emplaceBack((x << 1) + top, (y << 1) + normalUp, (Math.floor(nxRatio * FACTOR) << 1) + nySign, Math.round(e)); +} +class PartMetadata { + constructor() { + this.acc = new pointGeometry(0, 0); + this.polyCount = []; + } + startRing(p) { + this.currentPolyCount = { + edges: 0, + top: 0 + }; + this.polyCount.push(this.currentPolyCount); + if (this.min) + return; + this.min = new pointGeometry(p.x, p.y); + this.max = new pointGeometry(p.x, p.y); + } + append(p, prev) { + this.currentPolyCount.edges++; + this.acc._add(p); + let checkBorders = !!this.borders; + const min = this.min, max = this.max; + if (p.x < min.x) { + min.x = p.x; + checkBorders = true; + } else if (p.x > max.x) { + max.x = p.x; + checkBorders = true; + } + if (p.y < min.y) { + min.y = p.y; + checkBorders = true; + } else if (p.y > max.y) { + max.y = p.y; + checkBorders = true; + } + if (((p.x === 0 || p.x === EXTENT$1) && p.x === prev.x) !== ((p.y === 0 || p.y === EXTENT$1) && p.y === prev.y)) { + this.processBorderOverlap(p, prev); + } + if (checkBorders) + this.checkBorderIntersection(p, prev); + } + checkBorderIntersection(p, prev) { + if (prev.x < 0 !== p.x < 0) { + this.addBorderIntersection(0, number(prev.y, p.y, (0 - prev.x) / (p.x - prev.x))); + } + if (prev.x > EXTENT$1 !== p.x > EXTENT$1) { + this.addBorderIntersection(1, number(prev.y, p.y, (EXTENT$1 - prev.x) / (p.x - prev.x))); + } + if (prev.y < 0 !== p.y < 0) { + this.addBorderIntersection(2, number(prev.x, p.x, (0 - prev.y) / (p.y - prev.y))); + } + if (prev.y > EXTENT$1 !== p.y > EXTENT$1) { + this.addBorderIntersection(3, number(prev.x, p.x, (EXTENT$1 - prev.y) / (p.y - prev.y))); + } + } + addBorderIntersection(index, i) { + if (!this.borders) { + this.borders = [ + [ + Number.MAX_VALUE, + -Number.MAX_VALUE + ], + [ + Number.MAX_VALUE, + -Number.MAX_VALUE + ], + [ + Number.MAX_VALUE, + -Number.MAX_VALUE + ], + [ + Number.MAX_VALUE, + -Number.MAX_VALUE + ] + ]; + } + const b = this.borders[index]; + if (i < b[0]) + b[0] = i; + if (i > b[1]) + b[1] = i; + } + processBorderOverlap(p, prev) { + if (p.x === prev.x) { + if (p.y === prev.y) + return; + const index = p.x === 0 ? 0 : 1; + this.addBorderIntersection(index, prev.y); + this.addBorderIntersection(index, p.y); + } else { + const index = p.y === 0 ? 2 : 3; + this.addBorderIntersection(index, prev.x); + this.addBorderIntersection(index, p.x); + } + } + centroid() { + const count = this.polyCount.reduce((acc, p) => acc + p.edges, 0); + return count !== 0 ? this.acc.div(count)._round() : new pointGeometry(0, 0); + } + span() { + return new pointGeometry(this.max.x - this.min.x, this.max.y - this.min.y); + } + intersectsCount() { + return this.borders.reduce((acc, p) => acc + +(p[0] !== Number.MAX_VALUE), 0); + } +} +class FillExtrusionBucket { + constructor(options) { + this.zoom = options.zoom; + this.overscaling = options.overscaling; + this.layers = options.layers; + this.layerIds = this.layers.map(layer => layer.id); + this.index = options.index; + this.hasPattern = false; + this.layoutVertexArray = new StructArrayLayout4i8(); + this.centroidVertexArray = new FillExtrusionCentroidArray(); + this.indexArray = new StructArrayLayout3ui6(); + this.programConfigurations = new ProgramConfigurationSet(options.layers, options.zoom); + this.segments = new SegmentVector(); + this.stateDependentLayerIds = this.layers.filter(l => l.isStateDependent()).map(l => l.id); + this.enableTerrain = options.enableTerrain; + } + populate(features, options, canonical) { + this.features = []; + this.hasPattern = hasPattern('fill-extrusion', this.layers, options); + this.featuresOnBorder = []; + this.borders = [ + [], + [], + [], + [] + ]; + this.borderDone = [ + false, + false, + false, + false + ]; + this.tileToMeter = tileToMeter(canonical); + for (const {feature, id, index, sourceLayerIndex} of features) { + const needGeometry = this.layers[0]._featureFilter.needGeometry; + const evaluationFeature = toEvaluationFeature(feature, needGeometry); + if (!this.layers[0]._featureFilter.filter(new EvaluationParameters(this.zoom), evaluationFeature, canonical)) + continue; + const bucketFeature = { + id, + sourceLayerIndex, + index, + geometry: needGeometry ? evaluationFeature.geometry : loadGeometry(feature), + properties: feature.properties, + type: feature.type, + patterns: {} + }; + const vertexArrayOffset = this.layoutVertexArray.length; + if (this.hasPattern) { + this.features.push(addPatternDependencies('fill-extrusion', this.layers, bucketFeature, this.zoom, options)); + } else { + this.addFeature(bucketFeature, bucketFeature.geometry, index, canonical, {}); + } + options.featureIndex.insert(feature, bucketFeature.geometry, index, sourceLayerIndex, this.index, vertexArrayOffset); + } + this.sortBorders(); + } + addFeatures(options, canonical, imagePositions) { + for (const feature of this.features) { + const {geometry} = feature; + this.addFeature(feature, geometry, feature.index, canonical, imagePositions); + } + this.sortBorders(); + } + update(states, vtLayer, imagePositions) { + if (!this.stateDependentLayers.length) + return; + this.programConfigurations.updatePaintArrays(states, vtLayer, this.stateDependentLayers, imagePositions); + } + isEmpty() { + return this.layoutVertexArray.length === 0; + } + uploadPending() { + return !this.uploaded || this.programConfigurations.needsUpload; + } + upload(context) { + if (!this.uploaded) { + this.layoutVertexBuffer = context.createVertexBuffer(this.layoutVertexArray, members$2); + this.indexBuffer = context.createIndexBuffer(this.indexArray); + } + this.programConfigurations.upload(context); + this.uploaded = true; + } + uploadCentroid(context) { + if (this.centroidVertexArray.length === 0) + return; + if (!this.centroidVertexBuffer) { + this.centroidVertexBuffer = context.createVertexBuffer(this.centroidVertexArray, centroidAttributes.members, true); + } else if (this.needsCentroidUpdate) { + this.centroidVertexBuffer.updateData(this.centroidVertexArray); + } + this.needsCentroidUpdate = false; + } + destroy() { + if (!this.layoutVertexBuffer) + return; + this.layoutVertexBuffer.destroy(); + if (this.centroidVertexBuffer) + this.centroidVertexBuffer.destroy(); + this.indexBuffer.destroy(); + this.programConfigurations.destroy(); + this.segments.destroy(); + } + addFeature(feature, geometry, index, canonical, imagePositions) { + const flatRoof = this.enableTerrain && feature.properties && feature.properties.hasOwnProperty('type') && feature.properties.hasOwnProperty('height') && vectorTileFeatureTypes[feature.type] === 'Polygon'; + const metadata = flatRoof ? new PartMetadata() : null; + for (const polygon of classifyRings(geometry, EARCUT_MAX_RINGS$1)) { + let numVertices = 0; + let segment = this.segments.prepareSegment(4, this.layoutVertexArray, this.indexArray); + if (polygon.length === 0 || isEntirelyOutside(polygon[0])) { + continue; + } + for (let i = 0; i < polygon.length; i++) { + const ring = polygon[i]; + if (ring.length === 0) { + continue; + } + numVertices += ring.length; + let edgeDistance = 0; + if (metadata) + metadata.startRing(ring[0]); + for (let p = 0; p < ring.length; p++) { + const p1 = ring[p]; + if (p >= 1) { + const p2 = ring[p - 1]; + if (!isBoundaryEdge(p1, p2)) { + if (metadata) + metadata.append(p1, p2); + if (segment.vertexLength + 4 > SegmentVector.MAX_VERTEX_ARRAY_LENGTH) { + segment = this.segments.prepareSegment(4, this.layoutVertexArray, this.indexArray); + } + const d = p1.sub(p2)._perp(); + const nxRatio = d.x / (Math.abs(d.x) + Math.abs(d.y)); + const nySign = d.y > 0 ? 1 : 0; + const dist = p2.dist(p1); + if (edgeDistance + dist > 32768) + edgeDistance = 0; + addVertex(this.layoutVertexArray, p1.x, p1.y, nxRatio, nySign, 0, 0, edgeDistance); + addVertex(this.layoutVertexArray, p1.x, p1.y, nxRatio, nySign, 0, 1, edgeDistance); + edgeDistance += dist; + addVertex(this.layoutVertexArray, p2.x, p2.y, nxRatio, nySign, 0, 0, edgeDistance); + addVertex(this.layoutVertexArray, p2.x, p2.y, nxRatio, nySign, 0, 1, edgeDistance); + const bottomRight = segment.vertexLength; + this.indexArray.emplaceBack(bottomRight, bottomRight + 2, bottomRight + 1); + this.indexArray.emplaceBack(bottomRight + 1, bottomRight + 2, bottomRight + 3); + segment.vertexLength += 4; + segment.primitiveLength += 2; + } + } + } + } + if (segment.vertexLength + numVertices > SegmentVector.MAX_VERTEX_ARRAY_LENGTH) { + segment = this.segments.prepareSegment(numVertices, this.layoutVertexArray, this.indexArray); + } + if (vectorTileFeatureTypes[feature.type] !== 'Polygon') + continue; + const flattened = []; + const holeIndices = []; + const triangleIndex = segment.vertexLength; + for (let i = 0; i < polygon.length; i++) { + const ring = polygon[i]; + if (ring.length === 0) { + continue; + } + if (ring !== polygon[0]) { + holeIndices.push(flattened.length / 2); + } + for (let i = 0; i < ring.length; i++) { + const p = ring[i]; + addVertex(this.layoutVertexArray, p.x, p.y, 0, 0, 1, 1, 0); + flattened.push(p.x); + flattened.push(p.y); + if (metadata) + metadata.currentPolyCount.top++; + } + } + const indices = earcut_1(flattened, holeIndices); + for (let j = 0; j < indices.length; j += 3) { + this.indexArray.emplaceBack(triangleIndex + indices[j], triangleIndex + indices[j + 2], triangleIndex + indices[j + 1]); + } + segment.primitiveLength += indices.length / 3; + segment.vertexLength += numVertices; + } + if (metadata && metadata.polyCount.length > 0) { + if (metadata.borders) { + metadata.vertexArrayOffset = this.centroidVertexArray.length; + const borders = metadata.borders; + const index = this.featuresOnBorder.push(metadata) - 1; + for (let i = 0; i < 4; i++) { + if (borders[i][0] !== Number.MAX_VALUE) { + this.borders[i].push(index); + } + } + } + this.encodeCentroid(metadata.borders ? undefined : metadata.centroid(), metadata); + } + this.programConfigurations.populatePaintArrays(this.layoutVertexArray.length, feature, index, imagePositions, canonical); + } + sortBorders() { + for (let i = 0; i < 4; i++) { + this.borders[i].sort((a, b) => this.featuresOnBorder[a].borders[i][0] - this.featuresOnBorder[b].borders[i][0]); + } + } + encodeCentroid(c, metadata, append = true) { + let x, y; + if (c) { + if (c.y !== 0) { + const span = metadata.span()._mult(this.tileToMeter); + x = (Math.max(c.x, 1) << 3) + Math.min(7, Math.round(span.x / 10)); + y = (Math.max(c.y, 1) << 3) + Math.min(7, Math.round(span.y / 10)); + } else { + x = Math.ceil(c.x * ELEVATION_SCALE); + y = 0; + } + } else { + x = 0; + y = +append; + } + let offset = append ? this.centroidVertexArray.length : metadata.vertexArrayOffset; + for (const polyInfo of metadata.polyCount) { + if (append) { + this.centroidVertexArray.resize(this.centroidVertexArray.length + polyInfo.edges * 4 + polyInfo.top); + } + for (let i = 0; i < polyInfo.edges * 2; i++) { + this.centroidVertexArray.emplace(offset++, 0, y); + this.centroidVertexArray.emplace(offset++, x, y); + } + for (let i = 0; i < polyInfo.top; i++) { + this.centroidVertexArray.emplace(offset++, x, y); + } + } + } +} +register('FillExtrusionBucket', FillExtrusionBucket, { + omit: [ + 'layers', + 'features' + ] +}); +register('PartMetadata', PartMetadata); +function isBoundaryEdge(p1, p2) { + return p1.x === p2.x && (p1.x < 0 || p1.x > EXTENT$1) || p1.y === p2.y && (p1.y < 0 || p1.y > EXTENT$1); +} +function isEntirelyOutside(ring) { + return ring.every(p => p.x <= 0) || ring.every(p => p.x >= EXTENT$1) || ring.every(p => p.y <= 0) || ring.every(p => p.y >= EXTENT$1); +} +function tileToMeter(canonical) { + const circumferenceAtEquator = 40075017; + const mercatorY = canonical.y / (1 << canonical.z); + const exp = Math.exp(Math.PI * (1 - 2 * mercatorY)); + return circumferenceAtEquator * 2 * exp / (exp * exp + 1) / EXTENT$1 / (1 << canonical.z); +} + +const paint$5 = new Properties({ + 'fill-extrusion-opacity': new DataConstantProperty(spec['paint_fill-extrusion']['fill-extrusion-opacity']), + 'fill-extrusion-color': new DataDrivenProperty(spec['paint_fill-extrusion']['fill-extrusion-color']), + 'fill-extrusion-translate': new DataConstantProperty(spec['paint_fill-extrusion']['fill-extrusion-translate']), + 'fill-extrusion-translate-anchor': new DataConstantProperty(spec['paint_fill-extrusion']['fill-extrusion-translate-anchor']), + 'fill-extrusion-pattern': new CrossFadedDataDrivenProperty(spec['paint_fill-extrusion']['fill-extrusion-pattern']), + 'fill-extrusion-height': new DataDrivenProperty(spec['paint_fill-extrusion']['fill-extrusion-height']), + 'fill-extrusion-base': new DataDrivenProperty(spec['paint_fill-extrusion']['fill-extrusion-base']), + 'fill-extrusion-vertical-gradient': new DataConstantProperty(spec['paint_fill-extrusion']['fill-extrusion-vertical-gradient']) +}); +var properties$4 = { paint: paint$5 }; + +class FillExtrusionStyleLayer extends StyleLayer { + constructor(layer) { + super(layer, properties$4); + } + createBucket(parameters) { + return new FillExtrusionBucket(parameters); + } + queryRadius() { + return translateDistance(this.paint.get('fill-extrusion-translate')); + } + is3D() { + return true; + } + getProgramIds() { + const patternProperty = this.paint.get('fill-extrusion-pattern'); + const image = patternProperty.constantOr(1); + return [image ? 'fillExtrusionPattern' : 'fillExtrusion']; + } + getProgramConfiguration(zoom) { + return new ProgramConfiguration(this, zoom); + } + queryIntersectsFeature(queryGeometry, feature, featureState, geometry, zoom, transform, pixelPosMatrix, elevationHelper, layoutVertexArrayOffset) { + const translation = tilespaceTranslate(this.paint.get('fill-extrusion-translate'), this.paint.get('fill-extrusion-translate-anchor'), transform.angle, queryGeometry.pixelToTileUnitsFactor); + const height = this.paint.get('fill-extrusion-height').evaluate(feature, featureState); + const base = this.paint.get('fill-extrusion-base').evaluate(feature, featureState); + const centroid = [ + 0, + 0 + ]; + const terrainVisible = elevationHelper && transform.elevation; + const exaggeration = transform.elevation ? transform.elevation.exaggeration() : 1; + if (terrainVisible) { + const centroidVertexArray = queryGeometry.tile.getBucket(this).centroidVertexArray; + const centroidOffset = layoutVertexArrayOffset + 1; + if (centroidOffset < centroidVertexArray.length) { + const centroidVertexObject = centroidVertexArray.get(centroidOffset); + centroid[0] = centroidVertexObject.a_centroid_pos0; + centroid[1] = centroidVertexObject.a_centroid_pos1; + } + } + const isHidden = centroid[0] === 0 && centroid[1] === 1; + if (isHidden) + return false; + const demSampler = terrainVisible ? elevationHelper : null; + const projected = projectExtrusion(geometry, base, height, translation, pixelPosMatrix, demSampler, centroid, exaggeration, transform.center.lat); + const projectedBase = projected[0]; + const projectedTop = projected[1]; + const screenQuery = queryGeometry.queryGeometry; + const projectedQueryGeometry = screenQuery.isPointQuery() ? screenQuery.screenBounds : screenQuery.screenGeometry; + return checkIntersection(projectedBase, projectedTop, projectedQueryGeometry); + } +} +function dot$2(a, b) { + return a.x * b.x + a.y * b.y; +} +function getIntersectionDistance(projectedQueryGeometry, projectedFace) { + if (projectedQueryGeometry.length === 1) { + let i = 0; + const a = projectedFace[i++]; + let b; + while (!b || a.equals(b)) { + b = projectedFace[i++]; + if (!b) + return Infinity; + } + for (; i < projectedFace.length; i++) { + const c = projectedFace[i]; + const p = projectedQueryGeometry[0]; + const ab = b.sub(a); + const ac = c.sub(a); + const ap = p.sub(a); + const dotABAB = dot$2(ab, ab); + const dotABAC = dot$2(ab, ac); + const dotACAC = dot$2(ac, ac); + const dotAPAB = dot$2(ap, ab); + const dotAPAC = dot$2(ap, ac); + const denom = dotABAB * dotACAC - dotABAC * dotABAC; + const v = (dotACAC * dotAPAB - dotABAC * dotAPAC) / denom; + const w = (dotABAB * dotAPAC - dotABAC * dotAPAB) / denom; + const u = 1 - v - w; + const distance = a.z * u + b.z * v + c.z * w; + if (isFinite(distance)) + return distance; + } + return Infinity; + } else { + let closestDistance = Infinity; + for (const p of projectedFace) { + closestDistance = Math.min(closestDistance, p.z); + } + return closestDistance; + } +} +function checkIntersection(projectedBase, projectedTop, projectedQueryGeometry) { + let closestDistance = Infinity; + if (polygonIntersectsMultiPolygon(projectedQueryGeometry, projectedTop)) { + closestDistance = getIntersectionDistance(projectedQueryGeometry, projectedTop[0]); + } + for (let r = 0; r < projectedTop.length; r++) { + const ringTop = projectedTop[r]; + const ringBase = projectedBase[r]; + for (let p = 0; p < ringTop.length - 1; p++) { + const topA = ringTop[p]; + const topB = ringTop[p + 1]; + const baseA = ringBase[p]; + const baseB = ringBase[p + 1]; + const face = [ + topA, + topB, + baseB, + baseA, + topA + ]; + if (polygonIntersectsPolygon(projectedQueryGeometry, face)) { + closestDistance = Math.min(closestDistance, getIntersectionDistance(projectedQueryGeometry, face)); + } + } + } + return closestDistance === Infinity ? false : closestDistance; +} +function projectExtrusion(geometry, zBase, zTop, translation, m, demSampler, centroid, exaggeration, lat) { + if (demSampler) { + return projectExtrusion3D(geometry, zBase, zTop, translation, m, demSampler, centroid, exaggeration, lat); + } else { + return projectExtrusion2D(geometry, zBase, zTop, translation, m); + } +} +function projectExtrusion2D(geometry, zBase, zTop, translation, m) { + const projectedBase = []; + const projectedTop = []; + const baseXZ = m[8] * zBase; + const baseYZ = m[9] * zBase; + const baseZZ = m[10] * zBase; + const baseWZ = m[11] * zBase; + const topXZ = m[8] * zTop; + const topYZ = m[9] * zTop; + const topZZ = m[10] * zTop; + const topWZ = m[11] * zTop; + for (const r of geometry) { + const ringBase = []; + const ringTop = []; + for (const p of r) { + const x = p.x + translation.x; + const y = p.y + translation.y; + const sX = m[0] * x + m[4] * y + m[12]; + const sY = m[1] * x + m[5] * y + m[13]; + const sZ = m[2] * x + m[6] * y + m[14]; + const sW = m[3] * x + m[7] * y + m[15]; + const baseX = sX + baseXZ; + const baseY = sY + baseYZ; + const baseZ = sZ + baseZZ; + const baseW = sW + baseWZ; + const topX = sX + topXZ; + const topY = sY + topYZ; + const topZ = sZ + topZZ; + const topW = sW + topWZ; + const b = new pointGeometry(baseX / baseW, baseY / baseW); + b.z = baseZ / baseW; + ringBase.push(b); + const t = new pointGeometry(topX / topW, topY / topW); + t.z = topZ / topW; + ringTop.push(t); + } + projectedBase.push(ringBase); + projectedTop.push(ringTop); + } + return [ + projectedBase, + projectedTop + ]; +} +function projectExtrusion3D(geometry, zBase, zTop, translation, m, demSampler, centroid, exaggeration, lat) { + const projectedBase = []; + const projectedTop = []; + const v = [ + 0, + 0, + 0 + ]; + for (const r of geometry) { + const ringBase = []; + const ringTop = []; + for (const p of r) { + const x = p.x + translation.x; + const y = p.y + translation.y; + const heightOffset = getTerrainHeightOffset(x, y, zBase, zTop, demSampler, centroid, exaggeration, lat); + v[0] = x; + v[1] = y; + v[2] = heightOffset.base; + const base = toPoint(transformMat4(v, v, m)); + v[0] = x; + v[1] = y; + v[2] = heightOffset.top; + const top = toPoint(transformMat4(v, v, m)); + ringBase.push(base); + ringTop.push(top); + } + projectedBase.push(ringBase); + projectedTop.push(ringTop); + } + return [ + projectedBase, + projectedTop + ]; +} +function toPoint(v) { + const p = new pointGeometry(v[0], v[1]); + p.z = v[2]; + return p; +} +function getTerrainHeightOffset(x, y, zBase, zTop, demSampler, centroid, exaggeration, lat) { + const ele = exaggeration * demSampler.getElevationAt(x, y, true, true); + const flatRoof = centroid[0] !== 0; + const centroidElevation = flatRoof ? centroid[1] === 0 ? exaggeration * elevationFromUint16(centroid[0]) : exaggeration * flatElevation(demSampler, centroid, lat) : ele; + return { + base: ele + (zBase === 0) ? -1 : zBase, + top: flatRoof ? Math.max(centroidElevation + zTop, ele + zBase + 2) : ele + zTop + }; +} +function elevationFromUint16(n) { + return n / ELEVATION_SCALE; +} +function flatElevation(demSampler, centroid, lat) { + const posX = Math.floor(centroid[0] / 8); + const posY = Math.floor(centroid[1] / 8); + const spanX = 10 * (centroid[0] - posX * 8); + const spanY = 10 * (centroid[1] - posY * 8); + const z = demSampler.getElevationAt(posX, posY, true, true); + const meterToDEM = demSampler.getMeterToDEM(lat); + const wX = Math.floor(0.5 * (spanX * meterToDEM - 1)); + const wY = Math.floor(0.5 * (spanY * meterToDEM - 1)); + const posPx = demSampler.tileCoordToPixel(posX, posY); + const offsetX = 2 * wX + 1; + const offsetY = 2 * wY + 1; + const corners = fourSample(demSampler, posPx.x - wX, posPx.y - wY, offsetX, offsetY); + const diffX = Math.abs(corners[0] - corners[1]); + const diffY = Math.abs(corners[2] - corners[3]); + const diffZ = Math.abs(corners[0] - corners[2]); + const diffW = Math.abs(corners[1] - corners[3]); + const diffSumX = diffX + diffY; + const diffSumY = diffZ + diffW; + const slopeX = Math.min(0.25, meterToDEM * 0.5 * diffSumX / offsetX); + const slopeY = Math.min(0.25, meterToDEM * 0.5 * diffSumY / offsetY); + return z + Math.max(slopeX * spanX, slopeY * spanY); +} +function fourSample(demSampler, posX, posY, offsetX, offsetY) { + return [ + demSampler.getElevationAtPixel(posX, posY, true), + demSampler.getElevationAtPixel(posX + offsetY, posY, true), + demSampler.getElevationAtPixel(posX, posY + offsetY, true), + demSampler.getElevationAtPixel(posX + offsetX, posY + offsetY, true) + ]; +} + +const lineLayoutAttributes = createLayout([ + { + name: 'a_pos_normal', + components: 2, + type: 'Int16' + }, + { + name: 'a_data', + components: 4, + type: 'Uint8' + }, + { + name: 'a_linesofar', + components: 1, + type: 'Float32' + } +], 4); +const {members: members$3, size: size$3, alignment: alignment$3} = lineLayoutAttributes; + +const lineLayoutAttributesExt = createLayout([ + { + name: 'a_uv_x', + components: 1, + type: 'Float32' + }, + { + name: 'a_split_index', + components: 1, + type: 'Float32' + } +]); +const {members: members$4, size: size$4, alignment: alignment$4} = lineLayoutAttributesExt; + +const vectorTileFeatureTypes$1 = vectorTile.VectorTileFeature.types; +const EXTRUDE_SCALE = 63; +const COS_HALF_SHARP_CORNER = Math.cos(75 / 2 * (Math.PI / 180)); +const SHARP_CORNER_OFFSET = 15; +const DEG_PER_TRIANGLE = 20; +class LineBucket { + constructor(options) { + this.zoom = options.zoom; + this.overscaling = options.overscaling; + this.layers = options.layers; + this.layerIds = this.layers.map(layer => layer.id); + this.index = options.index; + this.hasPattern = false; + this.patternFeatures = []; + this.lineClipsArray = []; + this.gradients = {}; + this.layers.forEach(layer => { + this.gradients[layer.id] = {}; + }); + this.layoutVertexArray = new StructArrayLayout2i4ub1f12(); + this.layoutVertexArray2 = new StructArrayLayout2f8(); + this.indexArray = new StructArrayLayout3ui6(); + this.programConfigurations = new ProgramConfigurationSet(options.layers, options.zoom); + this.segments = new SegmentVector(); + this.maxLineLength = 0; + this.stateDependentLayerIds = this.layers.filter(l => l.isStateDependent()).map(l => l.id); + } + populate(features, options, canonical) { + this.hasPattern = hasPattern('line', this.layers, options); + const lineSortKey = this.layers[0].layout.get('line-sort-key'); + const bucketFeatures = []; + for (const {feature, id, index, sourceLayerIndex} of features) { + const needGeometry = this.layers[0]._featureFilter.needGeometry; + const evaluationFeature = toEvaluationFeature(feature, needGeometry); + if (!this.layers[0]._featureFilter.filter(new EvaluationParameters(this.zoom), evaluationFeature, canonical)) + continue; + const sortKey = lineSortKey ? lineSortKey.evaluate(evaluationFeature, {}, canonical) : undefined; + const bucketFeature = { + id, + properties: feature.properties, + type: feature.type, + sourceLayerIndex, + index, + geometry: needGeometry ? evaluationFeature.geometry : loadGeometry(feature), + patterns: {}, + sortKey + }; + bucketFeatures.push(bucketFeature); + } + if (lineSortKey) { + bucketFeatures.sort((a, b) => { + return a.sortKey - b.sortKey; + }); + } + for (const bucketFeature of bucketFeatures) { + const {geometry, index, sourceLayerIndex} = bucketFeature; + if (this.hasPattern) { + const patternBucketFeature = addPatternDependencies('line', this.layers, bucketFeature, this.zoom, options); + this.patternFeatures.push(patternBucketFeature); + } else { + this.addFeature(bucketFeature, geometry, index, canonical, {}); + } + const feature = features[index].feature; + options.featureIndex.insert(feature, geometry, index, sourceLayerIndex, this.index); + } + } + update(states, vtLayer, imagePositions) { + if (!this.stateDependentLayers.length) + return; + this.programConfigurations.updatePaintArrays(states, vtLayer, this.stateDependentLayers, imagePositions); + } + addFeatures(options, canonical, imagePositions) { + for (const feature of this.patternFeatures) { + this.addFeature(feature, feature.geometry, feature.index, canonical, imagePositions); + } + } + isEmpty() { + return this.layoutVertexArray.length === 0; + } + uploadPending() { + return !this.uploaded || this.programConfigurations.needsUpload; + } + upload(context) { + if (!this.uploaded) { + if (this.layoutVertexArray2.length !== 0) { + this.layoutVertexBuffer2 = context.createVertexBuffer(this.layoutVertexArray2, members$4); + } + this.layoutVertexBuffer = context.createVertexBuffer(this.layoutVertexArray, members$3); + this.indexBuffer = context.createIndexBuffer(this.indexArray); + } + this.programConfigurations.upload(context); + this.uploaded = true; + } + destroy() { + if (!this.layoutVertexBuffer) + return; + this.layoutVertexBuffer.destroy(); + this.indexBuffer.destroy(); + this.programConfigurations.destroy(); + this.segments.destroy(); + } + lineFeatureClips(feature) { + if (!!feature.properties && feature.properties.hasOwnProperty('mapbox_clip_start') && feature.properties.hasOwnProperty('mapbox_clip_end')) { + const start = +feature.properties['mapbox_clip_start']; + const end = +feature.properties['mapbox_clip_end']; + return { + start, + end + }; + } + } + addFeature(feature, geometry, index, canonical, imagePositions) { + const layout = this.layers[0].layout; + const join = layout.get('line-join').evaluate(feature, {}); + const cap = layout.get('line-cap'); + const miterLimit = layout.get('line-miter-limit'); + const roundLimit = layout.get('line-round-limit'); + this.lineClips = this.lineFeatureClips(feature); + for (const line of geometry) { + this.addLine(line, feature, join, cap, miterLimit, roundLimit); + } + this.programConfigurations.populatePaintArrays(this.layoutVertexArray.length, feature, index, imagePositions, canonical); + } + addLine(vertices, feature, join, cap, miterLimit, roundLimit) { + this.distance = 0; + this.scaledDistance = 0; + this.totalDistance = 0; + this.lineSoFar = 0; + if (this.lineClips) { + this.lineClipsArray.push(this.lineClips); + for (let i = 0; i < vertices.length - 1; i++) { + this.totalDistance += vertices[i].dist(vertices[i + 1]); + } + this.updateScaledDistance(); + this.maxLineLength = Math.max(this.maxLineLength, this.totalDistance); + } + const isPolygon = vectorTileFeatureTypes$1[feature.type] === 'Polygon'; + let len = vertices.length; + while (len >= 2 && vertices[len - 1].equals(vertices[len - 2])) { + len--; + } + let first = 0; + while (first < len - 1 && vertices[first].equals(vertices[first + 1])) { + first++; + } + if (len < (isPolygon ? 3 : 2)) + return; + if (join === 'bevel') + miterLimit = 1.05; + const sharpCornerOffset = this.overscaling <= 16 ? SHARP_CORNER_OFFSET * EXTENT$1 / (512 * this.overscaling) : 0; + const segment = this.segments.prepareSegment(len * 10, this.layoutVertexArray, this.indexArray); + let currentVertex; + let prevVertex = undefined; + let nextVertex = undefined; + let prevNormal = undefined; + let nextNormal = undefined; + this.e1 = this.e2 = -1; + if (isPolygon) { + currentVertex = vertices[len - 2]; + nextNormal = vertices[first].sub(currentVertex)._unit()._perp(); + } + for (let i = first; i < len; i++) { + nextVertex = i === len - 1 ? isPolygon ? vertices[first + 1] : undefined : vertices[i + 1]; + if (nextVertex && vertices[i].equals(nextVertex)) + continue; + if (nextNormal) + prevNormal = nextNormal; + if (currentVertex) + prevVertex = currentVertex; + currentVertex = vertices[i]; + nextNormal = nextVertex ? nextVertex.sub(currentVertex)._unit()._perp() : prevNormal; + prevNormal = prevNormal || nextNormal; + let joinNormal = prevNormal.add(nextNormal); + if (joinNormal.x !== 0 || joinNormal.y !== 0) { + joinNormal._unit(); + } + const cosAngle = prevNormal.x * nextNormal.x + prevNormal.y * nextNormal.y; + const cosHalfAngle = joinNormal.x * nextNormal.x + joinNormal.y * nextNormal.y; + const miterLength = cosHalfAngle !== 0 ? 1 / cosHalfAngle : Infinity; + const approxAngle = 2 * Math.sqrt(2 - 2 * cosHalfAngle); + const isSharpCorner = cosHalfAngle < COS_HALF_SHARP_CORNER && prevVertex && nextVertex; + const lineTurnsLeft = prevNormal.x * nextNormal.y - prevNormal.y * nextNormal.x > 0; + if (isSharpCorner && i > first) { + const prevSegmentLength = currentVertex.dist(prevVertex); + if (prevSegmentLength > 2 * sharpCornerOffset) { + const newPrevVertex = currentVertex.sub(currentVertex.sub(prevVertex)._mult(sharpCornerOffset / prevSegmentLength)._round()); + this.updateDistance(prevVertex, newPrevVertex); + this.addCurrentVertex(newPrevVertex, prevNormal, 0, 0, segment); + prevVertex = newPrevVertex; + } + } + const middleVertex = prevVertex && nextVertex; + let currentJoin = middleVertex ? join : isPolygon ? 'butt' : cap; + if (middleVertex && currentJoin === 'round') { + if (miterLength < roundLimit) { + currentJoin = 'miter'; + } else if (miterLength <= 2) { + currentJoin = 'fakeround'; + } + } + if (currentJoin === 'miter' && miterLength > miterLimit) { + currentJoin = 'bevel'; + } + if (currentJoin === 'bevel') { + if (miterLength > 2) + currentJoin = 'flipbevel'; + if (miterLength < miterLimit) + currentJoin = 'miter'; + } + if (prevVertex) + this.updateDistance(prevVertex, currentVertex); + if (currentJoin === 'miter') { + joinNormal._mult(miterLength); + this.addCurrentVertex(currentVertex, joinNormal, 0, 0, segment); + } else if (currentJoin === 'flipbevel') { + if (miterLength > 100) { + joinNormal = nextNormal.mult(-1); + } else { + const bevelLength = miterLength * prevNormal.add(nextNormal).mag() / prevNormal.sub(nextNormal).mag(); + joinNormal._perp()._mult(bevelLength * (lineTurnsLeft ? -1 : 1)); + } + this.addCurrentVertex(currentVertex, joinNormal, 0, 0, segment); + this.addCurrentVertex(currentVertex, joinNormal.mult(-1), 0, 0, segment); + } else if (currentJoin === 'bevel' || currentJoin === 'fakeround') { + const offset = -Math.sqrt(miterLength * miterLength - 1); + const offsetA = lineTurnsLeft ? offset : 0; + const offsetB = lineTurnsLeft ? 0 : offset; + if (prevVertex) { + this.addCurrentVertex(currentVertex, prevNormal, offsetA, offsetB, segment); + } + if (currentJoin === 'fakeround') { + const n = Math.round(approxAngle * 180 / Math.PI / DEG_PER_TRIANGLE); + for (let m = 1; m < n; m++) { + let t = m / n; + if (t !== 0.5) { + const t2 = t - 0.5; + const A = 1.0904 + cosAngle * (-3.2452 + cosAngle * (3.55645 - cosAngle * 1.43519)); + const B = 0.848013 + cosAngle * (-1.06021 + cosAngle * 0.215638); + t = t + t * t2 * (t - 1) * (A * t2 * t2 + B); + } + const extrude = nextNormal.sub(prevNormal)._mult(t)._add(prevNormal)._unit()._mult(lineTurnsLeft ? -1 : 1); + this.addHalfVertex(currentVertex, extrude.x, extrude.y, false, lineTurnsLeft, 0, segment); + } + } + if (nextVertex) { + this.addCurrentVertex(currentVertex, nextNormal, -offsetA, -offsetB, segment); + } + } else if (currentJoin === 'butt') { + this.addCurrentVertex(currentVertex, joinNormal, 0, 0, segment); + } else if (currentJoin === 'square') { + const offset = prevVertex ? 1 : -1; + this.addCurrentVertex(currentVertex, joinNormal, offset, offset, segment); + } else if (currentJoin === 'round') { + if (prevVertex) { + this.addCurrentVertex(currentVertex, prevNormal, 0, 0, segment); + this.addCurrentVertex(currentVertex, prevNormal, 1, 1, segment, true); + } + if (nextVertex) { + this.addCurrentVertex(currentVertex, nextNormal, -1, -1, segment, true); + this.addCurrentVertex(currentVertex, nextNormal, 0, 0, segment); + } + } + if (isSharpCorner && i < len - 1) { + const nextSegmentLength = currentVertex.dist(nextVertex); + if (nextSegmentLength > 2 * sharpCornerOffset) { + const newCurrentVertex = currentVertex.add(nextVertex.sub(currentVertex)._mult(sharpCornerOffset / nextSegmentLength)._round()); + this.updateDistance(currentVertex, newCurrentVertex); + this.addCurrentVertex(newCurrentVertex, nextNormal, 0, 0, segment); + currentVertex = newCurrentVertex; + } + } + } + } + addCurrentVertex(p, normal, endLeft, endRight, segment, round = false) { + const leftX = normal.x + normal.y * endLeft; + const leftY = normal.y - normal.x * endLeft; + const rightX = -normal.x + normal.y * endRight; + const rightY = -normal.y - normal.x * endRight; + this.addHalfVertex(p, leftX, leftY, round, false, endLeft, segment); + this.addHalfVertex(p, rightX, rightY, round, true, -endRight, segment); + } + addHalfVertex({x, y}, extrudeX, extrudeY, round, up, dir, segment) { + this.layoutVertexArray.emplaceBack((x << 1) + (round ? 1 : 0), (y << 1) + (up ? 1 : 0), Math.round(EXTRUDE_SCALE * extrudeX) + 128, Math.round(EXTRUDE_SCALE * extrudeY) + 128, (dir === 0 ? 0 : dir < 0 ? -1 : 1) + 1, 0, this.lineSoFar); + if (this.lineClips) { + this.layoutVertexArray2.emplaceBack(this.scaledDistance, this.lineClipsArray.length); + } + const e = segment.vertexLength++; + if (this.e1 >= 0 && this.e2 >= 0) { + this.indexArray.emplaceBack(this.e1, this.e2, e); + segment.primitiveLength++; + } + if (up) { + this.e2 = e; + } else { + this.e1 = e; + } + } + updateScaledDistance() { + if (this.lineClips) { + const featureShare = this.lineClips.end - this.lineClips.start; + const totalFeatureLength = this.totalDistance / featureShare; + this.scaledDistance = this.distance / this.totalDistance; + this.lineSoFar = totalFeatureLength * this.lineClips.start + this.distance; + } else { + this.lineSoFar = this.distance; + } + } + updateDistance(prev, next) { + this.distance += prev.dist(next); + this.updateScaledDistance(); + } +} +register('LineBucket', LineBucket, { + omit: [ + 'layers', + 'patternFeatures' + ] +}); + +const layout$5 = new Properties({ + 'line-cap': new DataConstantProperty(spec['layout_line']['line-cap']), + 'line-join': new DataDrivenProperty(spec['layout_line']['line-join']), + 'line-miter-limit': new DataConstantProperty(spec['layout_line']['line-miter-limit']), + 'line-round-limit': new DataConstantProperty(spec['layout_line']['line-round-limit']), + 'line-sort-key': new DataDrivenProperty(spec['layout_line']['line-sort-key']) +}); +const paint$6 = new Properties({ + 'line-opacity': new DataDrivenProperty(spec['paint_line']['line-opacity']), + 'line-color': new DataDrivenProperty(spec['paint_line']['line-color']), + 'line-translate': new DataConstantProperty(spec['paint_line']['line-translate']), + 'line-translate-anchor': new DataConstantProperty(spec['paint_line']['line-translate-anchor']), + 'line-width': new DataDrivenProperty(spec['paint_line']['line-width']), + 'line-gap-width': new DataDrivenProperty(spec['paint_line']['line-gap-width']), + 'line-offset': new DataDrivenProperty(spec['paint_line']['line-offset']), + 'line-blur': new DataDrivenProperty(spec['paint_line']['line-blur']), + 'line-dasharray': new CrossFadedProperty(spec['paint_line']['line-dasharray']), + 'line-pattern': new CrossFadedDataDrivenProperty(spec['paint_line']['line-pattern']), + 'line-gradient': new ColorRampProperty(spec['paint_line']['line-gradient']) +}); +var properties$5 = { + paint: paint$6, + layout: layout$5 +}; + +class LineFloorwidthProperty extends DataDrivenProperty { + possiblyEvaluate(value, parameters) { + parameters = new EvaluationParameters(Math.floor(parameters.zoom), { + now: parameters.now, + fadeDuration: parameters.fadeDuration, + zoomHistory: parameters.zoomHistory, + transition: parameters.transition + }); + return super.possiblyEvaluate(value, parameters); + } + evaluate(value, globals, feature, featureState) { + globals = extend({}, globals, { zoom: Math.floor(globals.zoom) }); + return super.evaluate(value, globals, feature, featureState); + } +} +const lineFloorwidthProperty = new LineFloorwidthProperty(properties$5.paint.properties['line-width'].specification); +lineFloorwidthProperty.useIntegerZoom = true; +class LineStyleLayer extends StyleLayer { + constructor(layer) { + super(layer, properties$5); + this.gradientVersion = 0; + } + _handleSpecialPaintPropertyUpdate(name) { + if (name === 'line-gradient') { + const expression = this._transitionablePaint._values['line-gradient'].value.expression; + this.stepInterpolant = expression._styleExpression.expression instanceof Step; + this.gradientVersion = (this.gradientVersion + 1) % MAX_SAFE_INTEGER; + } + } + gradientExpression() { + return this._transitionablePaint._values['line-gradient'].value.expression; + } + recalculate(parameters, availableImages) { + super.recalculate(parameters, availableImages); + this.paint._values['line-floorwidth'] = lineFloorwidthProperty.possiblyEvaluate(this._transitioningPaint._values['line-width'].value, parameters); + } + createBucket(parameters) { + return new LineBucket(parameters); + } + getProgramIds() { + const dasharray = this.paint.get('line-dasharray'); + const patternProperty = this.paint.get('line-pattern'); + const image = patternProperty.constantOr(1); + const gradient = this.paint.get('line-gradient'); + const programId = image ? 'linePattern' : dasharray ? 'lineSDF' : gradient ? 'lineGradient' : 'line'; + return [programId]; + } + getProgramConfiguration(zoom) { + return new ProgramConfiguration(this, zoom); + } + queryRadius(bucket) { + const lineBucket = bucket; + const width = getLineWidth(getMaximumPaintValue('line-width', this, lineBucket), getMaximumPaintValue('line-gap-width', this, lineBucket)); + const offset = getMaximumPaintValue('line-offset', this, lineBucket); + return width / 2 + Math.abs(offset) + translateDistance(this.paint.get('line-translate')); + } + queryIntersectsFeature(queryGeometry, feature, featureState, geometry, zoom, transform) { + if (queryGeometry.queryGeometry.isAboveHorizon) + return false; + const translatedPolygon = translate(queryGeometry.tilespaceGeometry, this.paint.get('line-translate'), this.paint.get('line-translate-anchor'), transform.angle, queryGeometry.pixelToTileUnitsFactor); + const halfWidth = queryGeometry.pixelToTileUnitsFactor / 2 * getLineWidth(this.paint.get('line-width').evaluate(feature, featureState), this.paint.get('line-gap-width').evaluate(feature, featureState)); + const lineOffset = this.paint.get('line-offset').evaluate(feature, featureState); + if (lineOffset) { + geometry = offsetLine(geometry, lineOffset * queryGeometry.pixelToTileUnitsFactor); + } + return polygonIntersectsBufferedMultiLine(translatedPolygon, geometry, halfWidth); + } + isTileClipped() { + return true; + } +} +function getLineWidth(lineWidth, lineGapWidth) { + if (lineGapWidth > 0) { + return lineGapWidth + 2 * lineWidth; + } else { + return lineWidth; + } +} +function offsetLine(rings, offset) { + const newRings = []; + const zero = new pointGeometry(0, 0); + for (let k = 0; k < rings.length; k++) { + const ring = rings[k]; + const newRing = []; + for (let i = 0; i < ring.length; i++) { + const a = ring[i - 1]; + const b = ring[i]; + const c = ring[i + 1]; + const aToB = i === 0 ? zero : b.sub(a)._unit()._perp(); + const bToC = i === ring.length - 1 ? zero : c.sub(b)._unit()._perp(); + const extrude = aToB._add(bToC)._unit(); + const cosHalfAngle = extrude.x * bToC.x + extrude.y * bToC.y; + extrude._mult(1 / cosHalfAngle); + newRing.push(extrude._mult(offset)._add(b)); + } + newRings.push(newRing); + } + return newRings; +} + +const symbolLayoutAttributes = createLayout([ + { + name: 'a_pos_offset', + components: 4, + type: 'Int16' + }, + { + name: 'a_data', + components: 4, + type: 'Uint16' + }, + { + name: 'a_pixeloffset', + components: 4, + type: 'Int16' + } +], 4); +const dynamicLayoutAttributes = createLayout([{ + name: 'a_projected_pos', + components: 3, + type: 'Float32' + }], 4); +const placementOpacityAttributes = createLayout([{ + name: 'a_fade_opacity', + components: 1, + type: 'Uint32' + }], 4); +const collisionVertexAttributes = createLayout([ + { + name: 'a_placed', + components: 2, + type: 'Uint8' + }, + { + name: 'a_shift', + components: 2, + type: 'Float32' + } +]); +const collisionVertexAttributesExt = createLayout([ + { + name: 'a_size_scale', + components: 1, + type: 'Float32' + }, + { + name: 'a_padding', + components: 2, + type: 'Float32' + } +]); +const collisionBox = createLayout([ + { + type: 'Int16', + name: 'anchorPointX' + }, + { + type: 'Int16', + name: 'anchorPointY' + }, + { + type: 'Float32', + name: 'x1' + }, + { + type: 'Float32', + name: 'y1' + }, + { + type: 'Float32', + name: 'x2' + }, + { + type: 'Float32', + name: 'y2' + }, + { + type: 'Int16', + name: 'padding' + }, + { + type: 'Uint32', + name: 'featureIndex' + }, + { + type: 'Uint16', + name: 'sourceLayerIndex' + }, + { + type: 'Uint16', + name: 'bucketIndex' + } +]); +const collisionBoxLayout = createLayout([ + { + name: 'a_pos', + components: 2, + type: 'Int16' + }, + { + name: 'a_anchor_pos', + components: 2, + type: 'Int16' + }, + { + name: 'a_extrude', + components: 2, + type: 'Int16' + } +], 4); +const collisionCircleLayout = createLayout([ + { + name: 'a_pos_2f', + components: 2, + type: 'Float32' + }, + { + name: 'a_radius', + components: 1, + type: 'Float32' + }, + { + name: 'a_flags', + components: 2, + type: 'Int16' + } +], 4); +const quadTriangle = createLayout([{ + name: 'triangle', + components: 3, + type: 'Uint16' + }]); +const placement = createLayout([ + { + type: 'Int16', + name: 'anchorX' + }, + { + type: 'Int16', + name: 'anchorY' + }, + { + type: 'Uint16', + name: 'glyphStartIndex' + }, + { + type: 'Uint16', + name: 'numGlyphs' + }, + { + type: 'Uint32', + name: 'vertexStartIndex' + }, + { + type: 'Uint32', + name: 'lineStartIndex' + }, + { + type: 'Uint32', + name: 'lineLength' + }, + { + type: 'Uint16', + name: 'segment' + }, + { + type: 'Uint16', + name: 'lowerSize' + }, + { + type: 'Uint16', + name: 'upperSize' + }, + { + type: 'Float32', + name: 'lineOffsetX' + }, + { + type: 'Float32', + name: 'lineOffsetY' + }, + { + type: 'Uint8', + name: 'writingMode' + }, + { + type: 'Uint8', + name: 'placedOrientation' + }, + { + type: 'Uint8', + name: 'hidden' + }, + { + type: 'Uint32', + name: 'crossTileID' + }, + { + type: 'Int16', + name: 'associatedIconIndex' + } +]); +const symbolInstance = createLayout([ + { + type: 'Int16', + name: 'anchorX' + }, + { + type: 'Int16', + name: 'anchorY' + }, + { + type: 'Int16', + name: 'rightJustifiedTextSymbolIndex' + }, + { + type: 'Int16', + name: 'centerJustifiedTextSymbolIndex' + }, + { + type: 'Int16', + name: 'leftJustifiedTextSymbolIndex' + }, + { + type: 'Int16', + name: 'verticalPlacedTextSymbolIndex' + }, + { + type: 'Int16', + name: 'placedIconSymbolIndex' + }, + { + type: 'Int16', + name: 'verticalPlacedIconSymbolIndex' + }, + { + type: 'Uint16', + name: 'key' + }, + { + type: 'Uint16', + name: 'textBoxStartIndex' + }, + { + type: 'Uint16', + name: 'textBoxEndIndex' + }, + { + type: 'Uint16', + name: 'verticalTextBoxStartIndex' + }, + { + type: 'Uint16', + name: 'verticalTextBoxEndIndex' + }, + { + type: 'Uint16', + name: 'iconBoxStartIndex' + }, + { + type: 'Uint16', + name: 'iconBoxEndIndex' + }, + { + type: 'Uint16', + name: 'verticalIconBoxStartIndex' + }, + { + type: 'Uint16', + name: 'verticalIconBoxEndIndex' + }, + { + type: 'Uint16', + name: 'featureIndex' + }, + { + type: 'Uint16', + name: 'numHorizontalGlyphVertices' + }, + { + type: 'Uint16', + name: 'numVerticalGlyphVertices' + }, + { + type: 'Uint16', + name: 'numIconVertices' + }, + { + type: 'Uint16', + name: 'numVerticalIconVertices' + }, + { + type: 'Uint16', + name: 'useRuntimeCollisionCircles' + }, + { + type: 'Uint32', + name: 'crossTileID' + }, + { + type: 'Float32', + name: 'textBoxScale' + }, + { + type: 'Float32', + components: 2, + name: 'textOffset' + }, + { + type: 'Float32', + name: 'collisionCircleDiameter' + } +]); +const glyphOffset = createLayout([{ + type: 'Float32', + name: 'offsetX' + }]); +const lineVertex = createLayout([ + { + type: 'Int16', + name: 'x' + }, + { + type: 'Int16', + name: 'y' + }, + { + type: 'Int16', + name: 'tileUnitDistanceFromAnchor' + } +]); + +var ONE_EM = 24; + +const SIZE_PACK_FACTOR = 128; +function getSizeData(tileZoom, value) { + const {expression} = value; + if (expression.kind === 'constant') { + const layoutSize = expression.evaluate(new EvaluationParameters(tileZoom + 1)); + return { + kind: 'constant', + layoutSize + }; + } else if (expression.kind === 'source') { + return { kind: 'source' }; + } else { + const {zoomStops, interpolationType} = expression; + let lower = 0; + while (lower < zoomStops.length && zoomStops[lower] <= tileZoom) + lower++; + lower = Math.max(0, lower - 1); + let upper = lower; + while (upper < zoomStops.length && zoomStops[upper] < tileZoom + 1) + upper++; + upper = Math.min(zoomStops.length - 1, upper); + const minZoom = zoomStops[lower]; + const maxZoom = zoomStops[upper]; + if (expression.kind === 'composite') { + return { + kind: 'composite', + minZoom, + maxZoom, + interpolationType + }; + } + const minSize = expression.evaluate(new EvaluationParameters(minZoom)); + const maxSize = expression.evaluate(new EvaluationParameters(maxZoom)); + return { + kind: 'camera', + minZoom, + maxZoom, + minSize, + maxSize, + interpolationType + }; + } +} +function evaluateSizeForFeature(sizeData, {uSize, uSizeT}, {lowerSize, upperSize}) { + if (sizeData.kind === 'source') { + return lowerSize / SIZE_PACK_FACTOR; + } else if (sizeData.kind === 'composite') { + return number(lowerSize / SIZE_PACK_FACTOR, upperSize / SIZE_PACK_FACTOR, uSizeT); + } + return uSize; +} +function evaluateSizeForZoom(sizeData, zoom) { + let uSizeT = 0; + let uSize = 0; + if (sizeData.kind === 'constant') { + uSize = sizeData.layoutSize; + } else if (sizeData.kind !== 'source') { + const {interpolationType, minZoom, maxZoom} = sizeData; + const t = !interpolationType ? 0 : clamp(Interpolate.interpolationFactor(interpolationType, zoom, minZoom, maxZoom), 0, 1); + if (sizeData.kind === 'camera') { + uSize = number(sizeData.minSize, sizeData.maxSize, t); + } else { + uSizeT = t; + } + } + return { + uSizeT, + uSize + }; +} + +var symbolSize = /*#__PURE__*/Object.freeze({ +__proto__: null, +getSizeData: getSizeData, +evaluateSizeForFeature: evaluateSizeForFeature, +evaluateSizeForZoom: evaluateSizeForZoom, +SIZE_PACK_FACTOR: SIZE_PACK_FACTOR +}); + +function transformText(text, layer, feature) { + const transform = layer.layout.get('text-transform').evaluate(feature, {}); + if (transform === 'uppercase') { + text = text.toLocaleUpperCase(); + } else if (transform === 'lowercase') { + text = text.toLocaleLowerCase(); + } + if (plugin.applyArabicShaping) { + text = plugin.applyArabicShaping(text); + } + return text; +} +function transformText$1 (text, layer, feature) { + text.sections.forEach(section => { + section.text = transformText(section.text, layer, feature); + }); + return text; +} + +function mergeLines (features) { + const leftIndex = {}; + const rightIndex = {}; + const mergedFeatures = []; + let mergedIndex = 0; + function add(k) { + mergedFeatures.push(features[k]); + mergedIndex++; + } + function mergeFromRight(leftKey, rightKey, geom) { + const i = rightIndex[leftKey]; + delete rightIndex[leftKey]; + rightIndex[rightKey] = i; + mergedFeatures[i].geometry[0].pop(); + mergedFeatures[i].geometry[0] = mergedFeatures[i].geometry[0].concat(geom[0]); + return i; + } + function mergeFromLeft(leftKey, rightKey, geom) { + const i = leftIndex[rightKey]; + delete leftIndex[rightKey]; + leftIndex[leftKey] = i; + mergedFeatures[i].geometry[0].shift(); + mergedFeatures[i].geometry[0] = geom[0].concat(mergedFeatures[i].geometry[0]); + return i; + } + function getKey(text, geom, onRight) { + const point = onRight ? geom[0][geom[0].length - 1] : geom[0][0]; + return `${ text }:${ point.x }:${ point.y }`; + } + for (let k = 0; k < features.length; k++) { + const feature = features[k]; + const geom = feature.geometry; + const text = feature.text ? feature.text.toString() : null; + if (!text) { + add(k); + continue; + } + const leftKey = getKey(text, geom), rightKey = getKey(text, geom, true); + if (leftKey in rightIndex && rightKey in leftIndex && rightIndex[leftKey] !== leftIndex[rightKey]) { + const j = mergeFromLeft(leftKey, rightKey, geom); + const i = mergeFromRight(leftKey, rightKey, mergedFeatures[j].geometry); + delete leftIndex[leftKey]; + delete rightIndex[rightKey]; + rightIndex[getKey(text, mergedFeatures[i].geometry, true)] = i; + mergedFeatures[j].geometry = null; + } else if (leftKey in rightIndex) { + mergeFromRight(leftKey, rightKey, geom); + } else if (rightKey in leftIndex) { + mergeFromLeft(leftKey, rightKey, geom); + } else { + add(k); + leftIndex[leftKey] = mergedIndex - 1; + rightIndex[rightKey] = mergedIndex - 1; + } + } + return mergedFeatures.filter(f => f.geometry); +} + +const verticalizedCharacterMap = { + '!': '\uFE15', + '#': '\uFF03', + '$': '\uFF04', + '%': '\uFF05', + '&': '\uFF06', + '(': '\uFE35', + ')': '\uFE36', + '*': '\uFF0A', + '+': '\uFF0B', + ',': '\uFE10', + '-': '\uFE32', + '.': '\u30FB', + '/': '\uFF0F', + ':': '\uFE13', + ';': '\uFE14', + '<': '\uFE3F', + '=': '\uFF1D', + '>': '\uFE40', + '?': '\uFE16', + '@': '\uFF20', + '[': '\uFE47', + '\\': '\uFF3C', + ']': '\uFE48', + '^': '\uFF3E', + '_': '︳', + '`': '\uFF40', + '{': '\uFE37', + '|': '\u2015', + '}': '\uFE38', + '~': '\uFF5E', + '\xA2': '\uFFE0', + '\xA3': '\uFFE1', + '\xA5': '\uFFE5', + '\xA6': '\uFFE4', + '\xAC': '\uFFE2', + '\xAF': '\uFFE3', + '\u2013': '\uFE32', + '\u2014': '\uFE31', + '\u2018': '\uFE43', + '\u2019': '\uFE44', + '\u201C': '\uFE41', + '\u201D': '\uFE42', + '\u2026': '\uFE19', + '\u2027': '\u30FB', + '\u20A9': '\uFFE6', + '\u3001': '\uFE11', + '\u3002': '\uFE12', + '\u3008': '\uFE3F', + '\u3009': '\uFE40', + '\u300A': '\uFE3D', + '\u300B': '\uFE3E', + '\u300C': '\uFE41', + '\u300D': '\uFE42', + '\u300E': '\uFE43', + '\u300F': '\uFE44', + '\u3010': '\uFE3B', + '\u3011': '\uFE3C', + '\u3014': '\uFE39', + '\u3015': '\uFE3A', + '\u3016': '\uFE17', + '\u3017': '\uFE18', + '\uFF01': '\uFE15', + '\uFF08': '\uFE35', + '\uFF09': '\uFE36', + '\uFF0C': '\uFE10', + '\uFF0D': '\uFE32', + '\uFF0E': '\u30FB', + '\uFF1A': '\uFE13', + '\uFF1B': '\uFE14', + '\uFF1C': '\uFE3F', + '\uFF1E': '\uFE40', + '\uFF1F': '\uFE16', + '\uFF3B': '\uFE47', + '\uFF3D': '\uFE48', + '＿': '︳', + '\uFF5B': '\uFE37', + '\uFF5C': '\u2015', + '\uFF5D': '\uFE38', + '\uFF5F': '\uFE35', + '\uFF60': '\uFE36', + '\uFF61': '\uFE12', + '\uFF62': '\uFE41', + '\uFF63': '\uFE42' +}; +function verticalizePunctuation(input) { + let output = ''; + for (let i = 0; i < input.length; i++) { + const nextCharCode = input.charCodeAt(i + 1) || null; + const prevCharCode = input.charCodeAt(i - 1) || null; + const canReplacePunctuation = (!nextCharCode || !charHasRotatedVerticalOrientation(nextCharCode) || verticalizedCharacterMap[input[i + 1]]) && (!prevCharCode || !charHasRotatedVerticalOrientation(prevCharCode) || verticalizedCharacterMap[input[i - 1]]); + if (canReplacePunctuation && verticalizedCharacterMap[input[i]]) { + output += verticalizedCharacterMap[input[i]]; + } else { + output += input[i]; + } + } + return output; +} + +var read = function (buffer, offset, isLE, mLen, nBytes) { + var e, m; + var eLen = nBytes * 8 - mLen - 1; + var eMax = (1 << eLen) - 1; + var eBias = eMax >> 1; + var nBits = -7; + var i = isLE ? nBytes - 1 : 0; + var d = isLE ? -1 : 1; + var s = buffer[offset + i]; + i += d; + e = s & (1 << -nBits) - 1; + s >>= -nBits; + nBits += eLen; + for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) { + } + m = e & (1 << -nBits) - 1; + e >>= -nBits; + nBits += mLen; + for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) { + } + if (e === 0) { + e = 1 - eBias; + } else if (e === eMax) { + return m ? NaN : (s ? -1 : 1) * Infinity; + } else { + m = m + Math.pow(2, mLen); + e = e - eBias; + } + return (s ? -1 : 1) * m * Math.pow(2, e - mLen); +}; +var write = function (buffer, value, offset, isLE, mLen, nBytes) { + var e, m, c; + var eLen = nBytes * 8 - mLen - 1; + var eMax = (1 << eLen) - 1; + var eBias = eMax >> 1; + var rt = mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0; + var i = isLE ? 0 : nBytes - 1; + var d = isLE ? 1 : -1; + var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0; + value = Math.abs(value); + if (isNaN(value) || value === Infinity) { + m = isNaN(value) ? 1 : 0; + e = eMax; + } else { + e = Math.floor(Math.log(value) / Math.LN2); + if (value * (c = Math.pow(2, -e)) < 1) { + e--; + c *= 2; + } + if (e + eBias >= 1) { + value += rt / c; + } else { + value += rt * Math.pow(2, 1 - eBias); + } + if (value * c >= 2) { + e++; + c /= 2; + } + if (e + eBias >= eMax) { + m = 0; + e = eMax; + } else if (e + eBias >= 1) { + m = (value * c - 1) * Math.pow(2, mLen); + e = e + eBias; + } else { + m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen); + e = 0; + } + } + for (; mLen >= 8; buffer[offset + i] = m & 255, i += d, m /= 256, mLen -= 8) { + } + e = e << mLen | m; + eLen += mLen; + for (; eLen > 0; buffer[offset + i] = e & 255, i += d, e /= 256, eLen -= 8) { + } + buffer[offset + i - d] |= s * 128; +}; + +var ieee754 = { + read: read, + write: write +}; + +var pbf = Pbf; + +function Pbf(buf) { + this.buf = ArrayBuffer.isView && ArrayBuffer.isView(buf) ? buf : new Uint8Array(buf || 0); + this.pos = 0; + this.type = 0; + this.length = this.buf.length; +} +Pbf.Varint = 0; +Pbf.Fixed64 = 1; +Pbf.Bytes = 2; +Pbf.Fixed32 = 5; +var SHIFT_LEFT_32 = (1 << 16) * (1 << 16), SHIFT_RIGHT_32 = 1 / SHIFT_LEFT_32; +var TEXT_DECODER_MIN_LENGTH = 12; +var utf8TextDecoder = typeof TextDecoder === 'undefined' ? null : new TextDecoder('utf8'); +Pbf.prototype = { + destroy: function () { + this.buf = null; + }, + readFields: function (readField, result, end) { + end = end || this.length; + while (this.pos < end) { + var val = this.readVarint(), tag = val >> 3, startPos = this.pos; + this.type = val & 7; + readField(tag, result, this); + if (this.pos === startPos) + this.skip(val); + } + return result; + }, + readMessage: function (readField, result) { + return this.readFields(readField, result, this.readVarint() + this.pos); + }, + readFixed32: function () { + var val = readUInt32(this.buf, this.pos); + this.pos += 4; + return val; + }, + readSFixed32: function () { + var val = readInt32(this.buf, this.pos); + this.pos += 4; + return val; + }, + readFixed64: function () { + var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32; + this.pos += 8; + return val; + }, + readSFixed64: function () { + var val = readUInt32(this.buf, this.pos) + readInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32; + this.pos += 8; + return val; + }, + readFloat: function () { + var val = ieee754.read(this.buf, this.pos, true, 23, 4); + this.pos += 4; + return val; + }, + readDouble: function () { + var val = ieee754.read(this.buf, this.pos, true, 52, 8); + this.pos += 8; + return val; + }, + readVarint: function (isSigned) { + var buf = this.buf, val, b; + b = buf[this.pos++]; + val = b & 127; + if (b < 128) + return val; + b = buf[this.pos++]; + val |= (b & 127) << 7; + if (b < 128) + return val; + b = buf[this.pos++]; + val |= (b & 127) << 14; + if (b < 128) + return val; + b = buf[this.pos++]; + val |= (b & 127) << 21; + if (b < 128) + return val; + b = buf[this.pos]; + val |= (b & 15) << 28; + return readVarintRemainder(val, isSigned, this); + }, + readVarint64: function () { + return this.readVarint(true); + }, + readSVarint: function () { + var num = this.readVarint(); + return num % 2 === 1 ? (num + 1) / -2 : num / 2; + }, + readBoolean: function () { + return Boolean(this.readVarint()); + }, + readString: function () { + var end = this.readVarint() + this.pos; + var pos = this.pos; + this.pos = end; + if (end - pos >= TEXT_DECODER_MIN_LENGTH && utf8TextDecoder) { + return readUtf8TextDecoder(this.buf, pos, end); + } + return readUtf8(this.buf, pos, end); + }, + readBytes: function () { + var end = this.readVarint() + this.pos, buffer = this.buf.subarray(this.pos, end); + this.pos = end; + return buffer; + }, + readPackedVarint: function (arr, isSigned) { + if (this.type !== Pbf.Bytes) + return arr.push(this.readVarint(isSigned)); + var end = readPackedEnd(this); + arr = arr || []; + while (this.pos < end) + arr.push(this.readVarint(isSigned)); + return arr; + }, + readPackedSVarint: function (arr) { + if (this.type !== Pbf.Bytes) + return arr.push(this.readSVarint()); + var end = readPackedEnd(this); + arr = arr || []; + while (this.pos < end) + arr.push(this.readSVarint()); + return arr; + }, + readPackedBoolean: function (arr) { + if (this.type !== Pbf.Bytes) + return arr.push(this.readBoolean()); + var end = readPackedEnd(this); + arr = arr || []; + while (this.pos < end) + arr.push(this.readBoolean()); + return arr; + }, + readPackedFloat: function (arr) { + if (this.type !== Pbf.Bytes) + return arr.push(this.readFloat()); + var end = readPackedEnd(this); + arr = arr || []; + while (this.pos < end) + arr.push(this.readFloat()); + return arr; + }, + readPackedDouble: function (arr) { + if (this.type !== Pbf.Bytes) + return arr.push(this.readDouble()); + var end = readPackedEnd(this); + arr = arr || []; + while (this.pos < end) + arr.push(this.readDouble()); + return arr; + }, + readPackedFixed32: function (arr) { + if (this.type !== Pbf.Bytes) + return arr.push(this.readFixed32()); + var end = readPackedEnd(this); + arr = arr || []; + while (this.pos < end) + arr.push(this.readFixed32()); + return arr; + }, + readPackedSFixed32: function (arr) { + if (this.type !== Pbf.Bytes) + return arr.push(this.readSFixed32()); + var end = readPackedEnd(this); + arr = arr || []; + while (this.pos < end) + arr.push(this.readSFixed32()); + return arr; + }, + readPackedFixed64: function (arr) { + if (this.type !== Pbf.Bytes) + return arr.push(this.readFixed64()); + var end = readPackedEnd(this); + arr = arr || []; + while (this.pos < end) + arr.push(this.readFixed64()); + return arr; + }, + readPackedSFixed64: function (arr) { + if (this.type !== Pbf.Bytes) + return arr.push(this.readSFixed64()); + var end = readPackedEnd(this); + arr = arr || []; + while (this.pos < end) + arr.push(this.readSFixed64()); + return arr; + }, + skip: function (val) { + var type = val & 7; + if (type === Pbf.Varint) + while (this.buf[this.pos++] > 127) { + } + else if (type === Pbf.Bytes) + this.pos = this.readVarint() + this.pos; + else if (type === Pbf.Fixed32) + this.pos += 4; + else if (type === Pbf.Fixed64) + this.pos += 8; + else + throw new Error('Unimplemented type: ' + type); + }, + writeTag: function (tag, type) { + this.writeVarint(tag << 3 | type); + }, + realloc: function (min) { + var length = this.length || 16; + while (length < this.pos + min) + length *= 2; + if (length !== this.length) { + var buf = new Uint8Array(length); + buf.set(this.buf); + this.buf = buf; + this.length = length; + } + }, + finish: function () { + this.length = this.pos; + this.pos = 0; + return this.buf.subarray(0, this.length); + }, + writeFixed32: function (val) { + this.realloc(4); + writeInt32(this.buf, val, this.pos); + this.pos += 4; + }, + writeSFixed32: function (val) { + this.realloc(4); + writeInt32(this.buf, val, this.pos); + this.pos += 4; + }, + writeFixed64: function (val) { + this.realloc(8); + writeInt32(this.buf, val & -1, this.pos); + writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4); + this.pos += 8; + }, + writeSFixed64: function (val) { + this.realloc(8); + writeInt32(this.buf, val & -1, this.pos); + writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4); + this.pos += 8; + }, + writeVarint: function (val) { + val = +val || 0; + if (val > 268435455 || val < 0) { + writeBigVarint(val, this); + return; + } + this.realloc(4); + this.buf[this.pos++] = val & 127 | (val > 127 ? 128 : 0); + if (val <= 127) + return; + this.buf[this.pos++] = (val >>>= 7) & 127 | (val > 127 ? 128 : 0); + if (val <= 127) + return; + this.buf[this.pos++] = (val >>>= 7) & 127 | (val > 127 ? 128 : 0); + if (val <= 127) + return; + this.buf[this.pos++] = val >>> 7 & 127; + }, + writeSVarint: function (val) { + this.writeVarint(val < 0 ? -val * 2 - 1 : val * 2); + }, + writeBoolean: function (val) { + this.writeVarint(Boolean(val)); + }, + writeString: function (str) { + str = String(str); + this.realloc(str.length * 4); + this.pos++; + var startPos = this.pos; + this.pos = writeUtf8(this.buf, str, this.pos); + var len = this.pos - startPos; + if (len >= 128) + makeRoomForExtraLength(startPos, len, this); + this.pos = startPos - 1; + this.writeVarint(len); + this.pos += len; + }, + writeFloat: function (val) { + this.realloc(4); + ieee754.write(this.buf, val, this.pos, true, 23, 4); + this.pos += 4; + }, + writeDouble: function (val) { + this.realloc(8); + ieee754.write(this.buf, val, this.pos, true, 52, 8); + this.pos += 8; + }, + writeBytes: function (buffer) { + var len = buffer.length; + this.writeVarint(len); + this.realloc(len); + for (var i = 0; i < len; i++) + this.buf[this.pos++] = buffer[i]; + }, + writeRawMessage: function (fn, obj) { + this.pos++; + var startPos = this.pos; + fn(obj, this); + var len = this.pos - startPos; + if (len >= 128) + makeRoomForExtraLength(startPos, len, this); + this.pos = startPos - 1; + this.writeVarint(len); + this.pos += len; + }, + writeMessage: function (tag, fn, obj) { + this.writeTag(tag, Pbf.Bytes); + this.writeRawMessage(fn, obj); + }, + writePackedVarint: function (tag, arr) { + if (arr.length) + this.writeMessage(tag, writePackedVarint, arr); + }, + writePackedSVarint: function (tag, arr) { + if (arr.length) + this.writeMessage(tag, writePackedSVarint, arr); + }, + writePackedBoolean: function (tag, arr) { + if (arr.length) + this.writeMessage(tag, writePackedBoolean, arr); + }, + writePackedFloat: function (tag, arr) { + if (arr.length) + this.writeMessage(tag, writePackedFloat, arr); + }, + writePackedDouble: function (tag, arr) { + if (arr.length) + this.writeMessage(tag, writePackedDouble, arr); + }, + writePackedFixed32: function (tag, arr) { + if (arr.length) + this.writeMessage(tag, writePackedFixed32, arr); + }, + writePackedSFixed32: function (tag, arr) { + if (arr.length) + this.writeMessage(tag, writePackedSFixed32, arr); + }, + writePackedFixed64: function (tag, arr) { + if (arr.length) + this.writeMessage(tag, writePackedFixed64, arr); + }, + writePackedSFixed64: function (tag, arr) { + if (arr.length) + this.writeMessage(tag, writePackedSFixed64, arr); + }, + writeBytesField: function (tag, buffer) { + this.writeTag(tag, Pbf.Bytes); + this.writeBytes(buffer); + }, + writeFixed32Field: function (tag, val) { + this.writeTag(tag, Pbf.Fixed32); + this.writeFixed32(val); + }, + writeSFixed32Field: function (tag, val) { + this.writeTag(tag, Pbf.Fixed32); + this.writeSFixed32(val); + }, + writeFixed64Field: function (tag, val) { + this.writeTag(tag, Pbf.Fixed64); + this.writeFixed64(val); + }, + writeSFixed64Field: function (tag, val) { + this.writeTag(tag, Pbf.Fixed64); + this.writeSFixed64(val); + }, + writeVarintField: function (tag, val) { + this.writeTag(tag, Pbf.Varint); + this.writeVarint(val); + }, + writeSVarintField: function (tag, val) { + this.writeTag(tag, Pbf.Varint); + this.writeSVarint(val); + }, + writeStringField: function (tag, str) { + this.writeTag(tag, Pbf.Bytes); + this.writeString(str); + }, + writeFloatField: function (tag, val) { + this.writeTag(tag, Pbf.Fixed32); + this.writeFloat(val); + }, + writeDoubleField: function (tag, val) { + this.writeTag(tag, Pbf.Fixed64); + this.writeDouble(val); + }, + writeBooleanField: function (tag, val) { + this.writeVarintField(tag, Boolean(val)); + } +}; +function readVarintRemainder(l, s, p) { + var buf = p.buf, h, b; + b = buf[p.pos++]; + h = (b & 112) >> 4; + if (b < 128) + return toNum(l, h, s); + b = buf[p.pos++]; + h |= (b & 127) << 3; + if (b < 128) + return toNum(l, h, s); + b = buf[p.pos++]; + h |= (b & 127) << 10; + if (b < 128) + return toNum(l, h, s); + b = buf[p.pos++]; + h |= (b & 127) << 17; + if (b < 128) + return toNum(l, h, s); + b = buf[p.pos++]; + h |= (b & 127) << 24; + if (b < 128) + return toNum(l, h, s); + b = buf[p.pos++]; + h |= (b & 1) << 31; + if (b < 128) + return toNum(l, h, s); + throw new Error('Expected varint not more than 10 bytes'); +} +function readPackedEnd(pbf) { + return pbf.type === Pbf.Bytes ? pbf.readVarint() + pbf.pos : pbf.pos + 1; +} +function toNum(low, high, isSigned) { + if (isSigned) { + return high * 4294967296 + (low >>> 0); + } + return (high >>> 0) * 4294967296 + (low >>> 0); +} +function writeBigVarint(val, pbf) { + var low, high; + if (val >= 0) { + low = val % 4294967296 | 0; + high = val / 4294967296 | 0; + } else { + low = ~(-val % 4294967296); + high = ~(-val / 4294967296); + if (low ^ 4294967295) { + low = low + 1 | 0; + } else { + low = 0; + high = high + 1 | 0; + } + } + if (val >= 18446744073709552000 || val < -18446744073709552000) { + throw new Error('Given varint doesn\'t fit into 10 bytes'); + } + pbf.realloc(10); + writeBigVarintLow(low, high, pbf); + writeBigVarintHigh(high, pbf); +} +function writeBigVarintLow(low, high, pbf) { + pbf.buf[pbf.pos++] = low & 127 | 128; + low >>>= 7; + pbf.buf[pbf.pos++] = low & 127 | 128; + low >>>= 7; + pbf.buf[pbf.pos++] = low & 127 | 128; + low >>>= 7; + pbf.buf[pbf.pos++] = low & 127 | 128; + low >>>= 7; + pbf.buf[pbf.pos] = low & 127; +} +function writeBigVarintHigh(high, pbf) { + var lsb = (high & 7) << 4; + pbf.buf[pbf.pos++] |= lsb | ((high >>>= 3) ? 128 : 0); + if (!high) + return; + pbf.buf[pbf.pos++] = high & 127 | ((high >>>= 7) ? 128 : 0); + if (!high) + return; + pbf.buf[pbf.pos++] = high & 127 | ((high >>>= 7) ? 128 : 0); + if (!high) + return; + pbf.buf[pbf.pos++] = high & 127 | ((high >>>= 7) ? 128 : 0); + if (!high) + return; + pbf.buf[pbf.pos++] = high & 127 | ((high >>>= 7) ? 128 : 0); + if (!high) + return; + pbf.buf[pbf.pos++] = high & 127; +} +function makeRoomForExtraLength(startPos, len, pbf) { + var extraLen = len <= 16383 ? 1 : len <= 2097151 ? 2 : len <= 268435455 ? 3 : Math.floor(Math.log(len) / (Math.LN2 * 7)); + pbf.realloc(extraLen); + for (var i = pbf.pos - 1; i >= startPos; i--) + pbf.buf[i + extraLen] = pbf.buf[i]; +} +function writePackedVarint(arr, pbf) { + for (var i = 0; i < arr.length; i++) + pbf.writeVarint(arr[i]); +} +function writePackedSVarint(arr, pbf) { + for (var i = 0; i < arr.length; i++) + pbf.writeSVarint(arr[i]); +} +function writePackedFloat(arr, pbf) { + for (var i = 0; i < arr.length; i++) + pbf.writeFloat(arr[i]); +} +function writePackedDouble(arr, pbf) { + for (var i = 0; i < arr.length; i++) + pbf.writeDouble(arr[i]); +} +function writePackedBoolean(arr, pbf) { + for (var i = 0; i < arr.length; i++) + pbf.writeBoolean(arr[i]); +} +function writePackedFixed32(arr, pbf) { + for (var i = 0; i < arr.length; i++) + pbf.writeFixed32(arr[i]); +} +function writePackedSFixed32(arr, pbf) { + for (var i = 0; i < arr.length; i++) + pbf.writeSFixed32(arr[i]); +} +function writePackedFixed64(arr, pbf) { + for (var i = 0; i < arr.length; i++) + pbf.writeFixed64(arr[i]); +} +function writePackedSFixed64(arr, pbf) { + for (var i = 0; i < arr.length; i++) + pbf.writeSFixed64(arr[i]); +} +function readUInt32(buf, pos) { + return (buf[pos] | buf[pos + 1] << 8 | buf[pos + 2] << 16) + buf[pos + 3] * 16777216; +} +function writeInt32(buf, val, pos) { + buf[pos] = val; + buf[pos + 1] = val >>> 8; + buf[pos + 2] = val >>> 16; + buf[pos + 3] = val >>> 24; +} +function readInt32(buf, pos) { + return (buf[pos] | buf[pos + 1] << 8 | buf[pos + 2] << 16) + (buf[pos + 3] << 24); +} +function readUtf8(buf, pos, end) { + var str = ''; + var i = pos; + while (i < end) { + var b0 = buf[i]; + var c = null; + var bytesPerSequence = b0 > 239 ? 4 : b0 > 223 ? 3 : b0 > 191 ? 2 : 1; + if (i + bytesPerSequence > end) + break; + var b1, b2, b3; + if (bytesPerSequence === 1) { + if (b0 < 128) { + c = b0; + } + } else if (bytesPerSequence === 2) { + b1 = buf[i + 1]; + if ((b1 & 192) === 128) { + c = (b0 & 31) << 6 | b1 & 63; + if (c <= 127) { + c = null; + } + } + } else if (bytesPerSequence === 3) { + b1 = buf[i + 1]; + b2 = buf[i + 2]; + if ((b1 & 192) === 128 && (b2 & 192) === 128) { + c = (b0 & 15) << 12 | (b1 & 63) << 6 | b2 & 63; + if (c <= 2047 || c >= 55296 && c <= 57343) { + c = null; + } + } + } else if (bytesPerSequence === 4) { + b1 = buf[i + 1]; + b2 = buf[i + 2]; + b3 = buf[i + 3]; + if ((b1 & 192) === 128 && (b2 & 192) === 128 && (b3 & 192) === 128) { + c = (b0 & 15) << 18 | (b1 & 63) << 12 | (b2 & 63) << 6 | b3 & 63; + if (c <= 65535 || c >= 1114112) { + c = null; + } + } + } + if (c === null) { + c = 65533; + bytesPerSequence = 1; + } else if (c > 65535) { + c -= 65536; + str += String.fromCharCode(c >>> 10 & 1023 | 55296); + c = 56320 | c & 1023; + } + str += String.fromCharCode(c); + i += bytesPerSequence; + } + return str; +} +function readUtf8TextDecoder(buf, pos, end) { + return utf8TextDecoder.decode(buf.subarray(pos, end)); +} +function writeUtf8(buf, str, pos) { + for (var i = 0, c, lead; i < str.length; i++) { + c = str.charCodeAt(i); + if (c > 55295 && c < 57344) { + if (lead) { + if (c < 56320) { + buf[pos++] = 239; + buf[pos++] = 191; + buf[pos++] = 189; + lead = c; + continue; + } else { + c = lead - 55296 << 10 | c - 56320 | 65536; + lead = null; + } + } else { + if (c > 56319 || i + 1 === str.length) { + buf[pos++] = 239; + buf[pos++] = 191; + buf[pos++] = 189; + } else { + lead = c; + } + continue; + } + } else if (lead) { + buf[pos++] = 239; + buf[pos++] = 191; + buf[pos++] = 189; + lead = null; + } + if (c < 128) { + buf[pos++] = c; + } else { + if (c < 2048) { + buf[pos++] = c >> 6 | 192; + } else { + if (c < 65536) { + buf[pos++] = c >> 12 | 224; + } else { + buf[pos++] = c >> 18 | 240; + buf[pos++] = c >> 12 & 63 | 128; + } + buf[pos++] = c >> 6 & 63 | 128; + } + buf[pos++] = c & 63 | 128; + } + } + return pos; +} + +const border = 3; +function readFontstacks(tag, glyphs, pbf) { + if (tag === 1) { + pbf.readMessage(readFontstack, glyphs); + } +} +function readFontstack(tag, glyphs, pbf) { + if (tag === 3) { + const {id, bitmap, width, height, left, top, advance} = pbf.readMessage(readGlyph, {}); + glyphs.push({ + id, + bitmap: new AlphaImage({ + width: width + 2 * border, + height: height + 2 * border + }, bitmap), + metrics: { + width, + height, + left, + top, + advance + } + }); + } +} +function readGlyph(tag, glyph, pbf) { + if (tag === 1) + glyph.id = pbf.readVarint(); + else if (tag === 2) + glyph.bitmap = pbf.readBytes(); + else if (tag === 3) + glyph.width = pbf.readVarint(); + else if (tag === 4) + glyph.height = pbf.readVarint(); + else if (tag === 5) + glyph.left = pbf.readSVarint(); + else if (tag === 6) + glyph.top = pbf.readSVarint(); + else if (tag === 7) + glyph.advance = pbf.readVarint(); +} +function parseGlyphPBF (data) { + return new pbf(data).readFields(readFontstacks, []); +} +const GLYPH_PBF_BORDER = border; + +function potpack(boxes) { + + // calculate total box area and maximum box width + let area = 0; + let maxWidth = 0; + + for (const box of boxes) { + area += box.w * box.h; + maxWidth = Math.max(maxWidth, box.w); + } + + // sort the boxes for insertion by height, descending + boxes.sort((a, b) => b.h - a.h); + + // aim for a squarish resulting container, + // slightly adjusted for sub-100% space utilization + const startWidth = Math.max(Math.ceil(Math.sqrt(area / 0.95)), maxWidth); + + // start with a single empty space, unbounded at the bottom + const spaces = [{x: 0, y: 0, w: startWidth, h: Infinity}]; + + let width = 0; + let height = 0; + + for (const box of boxes) { + // look through spaces backwards so that we check smaller spaces first + for (let i = spaces.length - 1; i >= 0; i--) { + const space = spaces[i]; + + // look for empty spaces that can accommodate the current box + if (box.w > space.w || box.h > space.h) continue; + + // found the space; add the box to its top-left corner + // |-------|-------| + // | box | | + // |_______| | + // | space | + // |_______________| + box.x = space.x; + box.y = space.y; + + height = Math.max(height, box.y + box.h); + width = Math.max(width, box.x + box.w); + + if (box.w === space.w && box.h === space.h) { + // space matches the box exactly; remove it + const last = spaces.pop(); + if (i < spaces.length) spaces[i] = last; + + } else if (box.h === space.h) { + // space matches the box height; update it accordingly + // |-------|---------------| + // | box | updated space | + // |_______|_______________| + space.x += box.w; + space.w -= box.w; + + } else if (box.w === space.w) { + // space matches the box width; update it accordingly + // |---------------| + // | box | + // |_______________| + // | updated space | + // |_______________| + space.y += box.h; + space.h -= box.h; + + } else { + // otherwise the box splits the space into two spaces + // |-------|-----------| + // | box | new space | + // |_______|___________| + // | updated space | + // |___________________| + spaces.push({ + x: space.x + box.w, + y: space.y, + w: space.w - box.w, + h: box.h + }); + space.y += box.h; + space.h -= box.h; + } + break; + } + } + + return { + w: width, // container width + h: height, // container height + fill: (area / (width * height)) || 0 // space utilization + }; +} + +const IMAGE_PADDING = 1; +class ImagePosition { + constructor(paddedRect, {pixelRatio, version, stretchX, stretchY, content}) { + this.paddedRect = paddedRect; + this.pixelRatio = pixelRatio; + this.stretchX = stretchX; + this.stretchY = stretchY; + this.content = content; + this.version = version; + } + get tl() { + return [ + this.paddedRect.x + IMAGE_PADDING, + this.paddedRect.y + IMAGE_PADDING + ]; + } + get br() { + return [ + this.paddedRect.x + this.paddedRect.w - IMAGE_PADDING, + this.paddedRect.y + this.paddedRect.h - IMAGE_PADDING + ]; + } + get tlbr() { + return this.tl.concat(this.br); + } + get displaySize() { + return [ + (this.paddedRect.w - IMAGE_PADDING * 2) / this.pixelRatio, + (this.paddedRect.h - IMAGE_PADDING * 2) / this.pixelRatio + ]; + } +} +class ImageAtlas { + constructor(icons, patterns) { + const iconPositions = {}, patternPositions = {}; + this.haveRenderCallbacks = []; + const bins = []; + this.addImages(icons, iconPositions, bins); + this.addImages(patterns, patternPositions, bins); + const {w, h} = potpack(bins); + const image = new RGBAImage({ + width: w || 1, + height: h || 1 + }); + for (const id in icons) { + const src = icons[id]; + const bin = iconPositions[id].paddedRect; + RGBAImage.copy(src.data, image, { + x: 0, + y: 0 + }, { + x: bin.x + IMAGE_PADDING, + y: bin.y + IMAGE_PADDING + }, src.data); + } + for (const id in patterns) { + const src = patterns[id]; + const bin = patternPositions[id].paddedRect; + const x = bin.x + IMAGE_PADDING, y = bin.y + IMAGE_PADDING, w = src.data.width, h = src.data.height; + RGBAImage.copy(src.data, image, { + x: 0, + y: 0 + }, { + x, + y + }, src.data); + RGBAImage.copy(src.data, image, { + x: 0, + y: h - 1 + }, { + x, + y: y - 1 + }, { + width: w, + height: 1 + }); + RGBAImage.copy(src.data, image, { + x: 0, + y: 0 + }, { + x, + y: y + h + }, { + width: w, + height: 1 + }); + RGBAImage.copy(src.data, image, { + x: w - 1, + y: 0 + }, { + x: x - 1, + y + }, { + width: 1, + height: h + }); + RGBAImage.copy(src.data, image, { + x: 0, + y: 0 + }, { + x: x + w, + y + }, { + width: 1, + height: h + }); + } + this.image = image; + this.iconPositions = iconPositions; + this.patternPositions = patternPositions; + } + addImages(images, positions, bins) { + for (const id in images) { + const src = images[id]; + const bin = { + x: 0, + y: 0, + w: src.data.width + 2 * IMAGE_PADDING, + h: src.data.height + 2 * IMAGE_PADDING + }; + bins.push(bin); + positions[id] = new ImagePosition(bin, src); + if (src.hasRenderCallback) { + this.haveRenderCallbacks.push(id); + } + } + } + patchUpdatedImages(imageManager, texture) { + imageManager.dispatchRenderCallbacks(this.haveRenderCallbacks); + for (const name in imageManager.updatedImages) { + this.patchUpdatedImage(this.iconPositions[name], imageManager.getImage(name), texture); + this.patchUpdatedImage(this.patternPositions[name], imageManager.getImage(name), texture); + } + } + patchUpdatedImage(position, image, texture) { + if (!position || !image) + return; + if (position.version === image.version) + return; + position.version = image.version; + const [x, y] = position.tl; + texture.update(image.data, undefined, { + x, + y + }); + } +} +register('ImagePosition', ImagePosition); +register('ImageAtlas', ImageAtlas); + +const WritingMode = { + horizontal: 1, + vertical: 2, + horizontalOnly: 3 +}; +const SHAPING_DEFAULT_OFFSET = -17; +function isEmpty(positionedLines) { + for (const line of positionedLines) { + if (line.positionedGlyphs.length !== 0) { + return false; + } + } + return true; +} +const PUAbegin = 57344; +const PUAend = 63743; +class SectionOptions { + constructor() { + this.scale = 1; + this.fontStack = ''; + this.imageName = null; + } + static forText(scale, fontStack) { + const textOptions = new SectionOptions(); + textOptions.scale = scale || 1; + textOptions.fontStack = fontStack; + return textOptions; + } + static forImage(imageName) { + const imageOptions = new SectionOptions(); + imageOptions.imageName = imageName; + return imageOptions; + } +} +class TaggedString { + constructor() { + this.text = ''; + this.sectionIndex = []; + this.sections = []; + this.imageSectionID = null; + } + static fromFeature(text, defaultFontStack) { + const result = new TaggedString(); + for (let i = 0; i < text.sections.length; i++) { + const section = text.sections[i]; + if (!section.image) { + result.addTextSection(section, defaultFontStack); + } else { + result.addImageSection(section); + } + } + return result; + } + length() { + return this.text.length; + } + getSection(index) { + return this.sections[this.sectionIndex[index]]; + } + getSectionIndex(index) { + return this.sectionIndex[index]; + } + getCharCode(index) { + return this.text.charCodeAt(index); + } + verticalizePunctuation() { + this.text = verticalizePunctuation(this.text); + } + trim() { + let beginningWhitespace = 0; + for (let i = 0; i < this.text.length && whitespace[this.text.charCodeAt(i)]; i++) { + beginningWhitespace++; + } + let trailingWhitespace = this.text.length; + for (let i = this.text.length - 1; i >= 0 && i >= beginningWhitespace && whitespace[this.text.charCodeAt(i)]; i--) { + trailingWhitespace--; + } + this.text = this.text.substring(beginningWhitespace, trailingWhitespace); + this.sectionIndex = this.sectionIndex.slice(beginningWhitespace, trailingWhitespace); + } + substring(start, end) { + const substring = new TaggedString(); + substring.text = this.text.substring(start, end); + substring.sectionIndex = this.sectionIndex.slice(start, end); + substring.sections = this.sections; + return substring; + } + toString() { + return this.text; + } + getMaxScale() { + return this.sectionIndex.reduce((max, index) => Math.max(max, this.sections[index].scale), 0); + } + addTextSection(section, defaultFontStack) { + this.text += section.text; + this.sections.push(SectionOptions.forText(section.scale, section.fontStack || defaultFontStack)); + const index = this.sections.length - 1; + for (let i = 0; i < section.text.length; ++i) { + this.sectionIndex.push(index); + } + } + addImageSection(section) { + const imageName = section.image ? section.image.name : ''; + if (imageName.length === 0) { + warnOnce(`Can't add FormattedSection with an empty image.`); + return; + } + const nextImageSectionCharCode = this.getNextImageSectionCharCode(); + if (!nextImageSectionCharCode) { + warnOnce(`Reached maximum number of images ${ PUAend - PUAbegin + 2 }`); + return; + } + this.text += String.fromCharCode(nextImageSectionCharCode); + this.sections.push(SectionOptions.forImage(imageName)); + this.sectionIndex.push(this.sections.length - 1); + } + getNextImageSectionCharCode() { + if (!this.imageSectionID) { + this.imageSectionID = PUAbegin; + return this.imageSectionID; + } + if (this.imageSectionID >= PUAend) + return null; + return ++this.imageSectionID; + } +} +function breakLines(input, lineBreakPoints) { + const lines = []; + const text = input.text; + let start = 0; + for (const lineBreak of lineBreakPoints) { + lines.push(input.substring(start, lineBreak)); + start = lineBreak; + } + if (start < text.length) { + lines.push(input.substring(start, text.length)); + } + return lines; +} +function shapeText(text, glyphMap, glyphPositions, imagePositions, defaultFontStack, maxWidth, lineHeight, textAnchor, textJustify, spacing, translate, writingMode, allowVerticalPlacement, symbolPlacement, layoutTextSize, layoutTextSizeThisZoom) { + const logicalInput = TaggedString.fromFeature(text, defaultFontStack); + if (writingMode === WritingMode.vertical) { + logicalInput.verticalizePunctuation(); + } + let lines; + const {processBidirectionalText, processStyledBidirectionalText} = plugin; + if (processBidirectionalText && logicalInput.sections.length === 1) { + lines = []; + const untaggedLines = processBidirectionalText(logicalInput.toString(), determineLineBreaks(logicalInput, spacing, maxWidth, glyphMap, imagePositions, symbolPlacement, layoutTextSize)); + for (const line of untaggedLines) { + const taggedLine = new TaggedString(); + taggedLine.text = line; + taggedLine.sections = logicalInput.sections; + for (let i = 0; i < line.length; i++) { + taggedLine.sectionIndex.push(0); + } + lines.push(taggedLine); + } + } else if (processStyledBidirectionalText) { + lines = []; + const processedLines = processStyledBidirectionalText(logicalInput.text, logicalInput.sectionIndex, determineLineBreaks(logicalInput, spacing, maxWidth, glyphMap, imagePositions, symbolPlacement, layoutTextSize)); + for (const line of processedLines) { + const taggedLine = new TaggedString(); + taggedLine.text = line[0]; + taggedLine.sectionIndex = line[1]; + taggedLine.sections = logicalInput.sections; + lines.push(taggedLine); + } + } else { + lines = breakLines(logicalInput, determineLineBreaks(logicalInput, spacing, maxWidth, glyphMap, imagePositions, symbolPlacement, layoutTextSize)); + } + const positionedLines = []; + const shaping = { + positionedLines, + text: logicalInput.toString(), + top: translate[1], + bottom: translate[1], + left: translate[0], + right: translate[0], + writingMode, + iconsInText: false, + verticalizable: false + }; + shapeLines(shaping, glyphMap, glyphPositions, imagePositions, lines, lineHeight, textAnchor, textJustify, writingMode, spacing, allowVerticalPlacement, layoutTextSizeThisZoom); + if (isEmpty(positionedLines)) + return false; + return shaping; +} +const whitespace = { + [9]: true, + [10]: true, + [11]: true, + [12]: true, + [13]: true, + [32]: true +}; +const breakable = { + [10]: true, + [32]: true, + [38]: true, + [40]: true, + [41]: true, + [43]: true, + [45]: true, + [47]: true, + [173]: true, + [183]: true, + [8203]: true, + [8208]: true, + [8211]: true, + [8231]: true +}; +function getGlyphAdvance(codePoint, section, glyphMap, imagePositions, spacing, layoutTextSize) { + if (!section.imageName) { + const positions = glyphMap[section.fontStack]; + const glyph = positions && positions[codePoint]; + if (!glyph) + return 0; + return glyph.metrics.advance * section.scale + spacing; + } else { + const imagePosition = imagePositions[section.imageName]; + if (!imagePosition) + return 0; + return imagePosition.displaySize[0] * section.scale * ONE_EM / layoutTextSize + spacing; + } +} +function determineAverageLineWidth(logicalInput, spacing, maxWidth, glyphMap, imagePositions, layoutTextSize) { + let totalWidth = 0; + for (let index = 0; index < logicalInput.length(); index++) { + const section = logicalInput.getSection(index); + totalWidth += getGlyphAdvance(logicalInput.getCharCode(index), section, glyphMap, imagePositions, spacing, layoutTextSize); + } + const lineCount = Math.max(1, Math.ceil(totalWidth / maxWidth)); + return totalWidth / lineCount; +} +function calculateBadness(lineWidth, targetWidth, penalty, isLastBreak) { + const raggedness = Math.pow(lineWidth - targetWidth, 2); + if (isLastBreak) { + if (lineWidth < targetWidth) { + return raggedness / 2; + } else { + return raggedness * 2; + } + } + return raggedness + Math.abs(penalty) * penalty; +} +function calculatePenalty(codePoint, nextCodePoint, penalizableIdeographicBreak) { + let penalty = 0; + if (codePoint === 10) { + penalty -= 10000; + } + if (penalizableIdeographicBreak) { + penalty += 150; + } + if (codePoint === 40 || codePoint === 65288) { + penalty += 50; + } + if (nextCodePoint === 41 || nextCodePoint === 65289) { + penalty += 50; + } + return penalty; +} +function evaluateBreak(breakIndex, breakX, targetWidth, potentialBreaks, penalty, isLastBreak) { + let bestPriorBreak = null; + let bestBreakBadness = calculateBadness(breakX, targetWidth, penalty, isLastBreak); + for (const potentialBreak of potentialBreaks) { + const lineWidth = breakX - potentialBreak.x; + const breakBadness = calculateBadness(lineWidth, targetWidth, penalty, isLastBreak) + potentialBreak.badness; + if (breakBadness <= bestBreakBadness) { + bestPriorBreak = potentialBreak; + bestBreakBadness = breakBadness; + } + } + return { + index: breakIndex, + x: breakX, + priorBreak: bestPriorBreak, + badness: bestBreakBadness + }; +} +function leastBadBreaks(lastLineBreak) { + if (!lastLineBreak) { + return []; + } + return leastBadBreaks(lastLineBreak.priorBreak).concat(lastLineBreak.index); +} +function determineLineBreaks(logicalInput, spacing, maxWidth, glyphMap, imagePositions, symbolPlacement, layoutTextSize) { + if (symbolPlacement !== 'point') + return []; + if (!logicalInput) + return []; + const potentialLineBreaks = []; + const targetWidth = determineAverageLineWidth(logicalInput, spacing, maxWidth, glyphMap, imagePositions, layoutTextSize); + const hasServerSuggestedBreakpoints = logicalInput.text.indexOf('\u200B') >= 0; + let currentX = 0; + for (let i = 0; i < logicalInput.length(); i++) { + const section = logicalInput.getSection(i); + const codePoint = logicalInput.getCharCode(i); + if (!whitespace[codePoint]) + currentX += getGlyphAdvance(codePoint, section, glyphMap, imagePositions, spacing, layoutTextSize); + if (i < logicalInput.length() - 1) { + const ideographicBreak = charAllowsIdeographicBreaking(codePoint); + if (breakable[codePoint] || ideographicBreak || section.imageName) { + potentialLineBreaks.push(evaluateBreak(i + 1, currentX, targetWidth, potentialLineBreaks, calculatePenalty(codePoint, logicalInput.getCharCode(i + 1), ideographicBreak && hasServerSuggestedBreakpoints), false)); + } + } + } + return leastBadBreaks(evaluateBreak(logicalInput.length(), currentX, targetWidth, potentialLineBreaks, 0, true)); +} +function getAnchorAlignment(anchor) { + let horizontalAlign = 0.5, verticalAlign = 0.5; + switch (anchor) { + case 'right': + case 'top-right': + case 'bottom-right': + horizontalAlign = 1; + break; + case 'left': + case 'top-left': + case 'bottom-left': + horizontalAlign = 0; + break; + } + switch (anchor) { + case 'bottom': + case 'bottom-right': + case 'bottom-left': + verticalAlign = 1; + break; + case 'top': + case 'top-right': + case 'top-left': + verticalAlign = 0; + break; + } + return { + horizontalAlign, + verticalAlign + }; +} +function shapeLines(shaping, glyphMap, glyphPositions, imagePositions, lines, lineHeight, textAnchor, textJustify, writingMode, spacing, allowVerticalPlacement, layoutTextSizeThisZoom) { + let x = 0; + let y = SHAPING_DEFAULT_OFFSET; + let maxLineLength = 0; + let maxLineHeight = 0; + const justify = textJustify === 'right' ? 1 : textJustify === 'left' ? 0 : 0.5; + let lineIndex = 0; + for (const line of lines) { + line.trim(); + const lineMaxScale = line.getMaxScale(); + const maxLineOffset = (lineMaxScale - 1) * ONE_EM; + const positionedLine = { + positionedGlyphs: [], + lineOffset: 0 + }; + shaping.positionedLines[lineIndex] = positionedLine; + const positionedGlyphs = positionedLine.positionedGlyphs; + let lineOffset = 0; + if (!line.length()) { + y += lineHeight; + ++lineIndex; + continue; + } + for (let i = 0; i < line.length(); i++) { + const section = line.getSection(i); + const sectionIndex = line.getSectionIndex(i); + const codePoint = line.getCharCode(i); + let baselineOffset = 0; + let metrics = null; + let rect = null; + let imageName = null; + let verticalAdvance = ONE_EM; + const vertical = !(writingMode === WritingMode.horizontal || !allowVerticalPlacement && !charHasUprightVerticalOrientation(codePoint) || allowVerticalPlacement && (whitespace[codePoint] || charInComplexShapingScript(codePoint))); + if (!section.imageName) { + const positions = glyphPositions[section.fontStack]; + const glyphPosition = positions && positions[codePoint]; + if (glyphPosition && glyphPosition.rect) { + rect = glyphPosition.rect; + metrics = glyphPosition.metrics; + } else { + const glyphs = glyphMap[section.fontStack]; + const glyph = glyphs && glyphs[codePoint]; + if (!glyph) + continue; + metrics = glyph.metrics; + } + baselineOffset = (lineMaxScale - section.scale) * ONE_EM; + } else { + const imagePosition = imagePositions[section.imageName]; + if (!imagePosition) + continue; + imageName = section.imageName; + shaping.iconsInText = shaping.iconsInText || true; + rect = imagePosition.paddedRect; + const size = imagePosition.displaySize; + section.scale = section.scale * ONE_EM / layoutTextSizeThisZoom; + metrics = { + width: size[0], + height: size[1], + left: IMAGE_PADDING, + top: -GLYPH_PBF_BORDER, + advance: vertical ? size[1] : size[0], + localGlyph: false + }; + const imageOffset = ONE_EM - size[1] * section.scale; + baselineOffset = maxLineOffset + imageOffset; + verticalAdvance = metrics.advance; + const offset = vertical ? size[0] * section.scale - ONE_EM * lineMaxScale : size[1] * section.scale - ONE_EM * lineMaxScale; + if (offset > 0 && offset > lineOffset) { + lineOffset = offset; + } + } + if (!vertical) { + positionedGlyphs.push({ + glyph: codePoint, + imageName, + x, + y: y + baselineOffset, + vertical, + scale: section.scale, + localGlyph: metrics.localGlyph, + fontStack: section.fontStack, + sectionIndex, + metrics, + rect + }); + x += metrics.advance * section.scale + spacing; + } else { + shaping.verticalizable = true; + positionedGlyphs.push({ + glyph: codePoint, + imageName, + x, + y: y + baselineOffset, + vertical, + scale: section.scale, + localGlyph: metrics.localGlyph, + fontStack: section.fontStack, + sectionIndex, + metrics, + rect + }); + x += verticalAdvance * section.scale + spacing; + } + } + if (positionedGlyphs.length !== 0) { + const lineLength = x - spacing; + maxLineLength = Math.max(lineLength, maxLineLength); + justifyLine(positionedGlyphs, 0, positionedGlyphs.length - 1, justify, lineOffset); + } + x = 0; + const currentLineHeight = lineHeight * lineMaxScale + lineOffset; + positionedLine.lineOffset = Math.max(lineOffset, maxLineOffset); + y += currentLineHeight; + maxLineHeight = Math.max(currentLineHeight, maxLineHeight); + ++lineIndex; + } + const height = y - SHAPING_DEFAULT_OFFSET; + const {horizontalAlign, verticalAlign} = getAnchorAlignment(textAnchor); + align$1(shaping.positionedLines, justify, horizontalAlign, verticalAlign, maxLineLength, maxLineHeight, lineHeight, height, lines.length); + shaping.top += -verticalAlign * height; + shaping.bottom = shaping.top + height; + shaping.left += -horizontalAlign * maxLineLength; + shaping.right = shaping.left + maxLineLength; +} +function justifyLine(positionedGlyphs, start, end, justify, lineOffset) { + if (!justify && !lineOffset) + return; + const lastPositionedGlyph = positionedGlyphs[end]; + const lastAdvance = lastPositionedGlyph.metrics.advance * lastPositionedGlyph.scale; + const lineIndent = (positionedGlyphs[end].x + lastAdvance) * justify; + for (let j = start; j <= end; j++) { + positionedGlyphs[j].x -= lineIndent; + positionedGlyphs[j].y += lineOffset; + } +} +function align$1(positionedLines, justify, horizontalAlign, verticalAlign, maxLineLength, maxLineHeight, lineHeight, blockHeight, lineCount) { + const shiftX = (justify - horizontalAlign) * maxLineLength; + let shiftY = 0; + if (maxLineHeight !== lineHeight) { + shiftY = -blockHeight * verticalAlign - SHAPING_DEFAULT_OFFSET; + } else { + shiftY = (-verticalAlign * lineCount + 0.5) * lineHeight; + } + for (const line of positionedLines) { + for (const positionedGlyph of line.positionedGlyphs) { + positionedGlyph.x += shiftX; + positionedGlyph.y += shiftY; + } + } +} +function shapeIcon(image, iconOffset, iconAnchor) { + const {horizontalAlign, verticalAlign} = getAnchorAlignment(iconAnchor); + const dx = iconOffset[0]; + const dy = iconOffset[1]; + const x1 = dx - image.displaySize[0] * horizontalAlign; + const x2 = x1 + image.displaySize[0]; + const y1 = dy - image.displaySize[1] * verticalAlign; + const y2 = y1 + image.displaySize[1]; + return { + image, + top: y1, + bottom: y2, + left: x1, + right: x2 + }; +} +function fitIconToText(shapedIcon, shapedText, textFit, padding, iconOffset, fontScale) { + const image = shapedIcon.image; + let collisionPadding; + if (image.content) { + const content = image.content; + const pixelRatio = image.pixelRatio || 1; + collisionPadding = [ + content[0] / pixelRatio, + content[1] / pixelRatio, + image.displaySize[0] - content[2] / pixelRatio, + image.displaySize[1] - content[3] / pixelRatio + ]; + } + const textLeft = shapedText.left * fontScale; + const textRight = shapedText.right * fontScale; + let top, right, bottom, left; + if (textFit === 'width' || textFit === 'both') { + left = iconOffset[0] + textLeft - padding[3]; + right = iconOffset[0] + textRight + padding[1]; + } else { + left = iconOffset[0] + (textLeft + textRight - image.displaySize[0]) / 2; + right = left + image.displaySize[0]; + } + const textTop = shapedText.top * fontScale; + const textBottom = shapedText.bottom * fontScale; + if (textFit === 'height' || textFit === 'both') { + top = iconOffset[1] + textTop - padding[0]; + bottom = iconOffset[1] + textBottom + padding[2]; + } else { + top = iconOffset[1] + (textTop + textBottom - image.displaySize[1]) / 2; + bottom = top + image.displaySize[1]; + } + return { + image, + top, + right, + bottom, + left, + collisionPadding + }; +} + +class Anchor extends pointGeometry { + constructor(x, y, angle, segment) { + super(x, y); + this.angle = angle; + if (segment !== undefined) { + this.segment = segment; + } + } + clone() { + return new Anchor(this.x, this.y, this.angle, this.segment); + } +} +register('Anchor', Anchor); + +function checkMaxAngle(line, anchor, labelLength, windowSize, maxAngle) { + if (anchor.segment === undefined) + return true; + let p = anchor; + let index = anchor.segment + 1; + let anchorDistance = 0; + while (anchorDistance > -labelLength / 2) { + index--; + if (index < 0) + return false; + anchorDistance -= line[index].dist(p); + p = line[index]; + } + anchorDistance += line[index].dist(line[index + 1]); + index++; + const recentCorners = []; + let recentAngleDelta = 0; + while (anchorDistance < labelLength / 2) { + const prev = line[index - 1]; + const current = line[index]; + const next = line[index + 1]; + if (!next) + return false; + let angleDelta = prev.angleTo(current) - current.angleTo(next); + angleDelta = Math.abs((angleDelta + 3 * Math.PI) % (Math.PI * 2) - Math.PI); + recentCorners.push({ + distance: anchorDistance, + angleDelta + }); + recentAngleDelta += angleDelta; + while (anchorDistance - recentCorners[0].distance > windowSize) { + recentAngleDelta -= recentCorners.shift().angleDelta; + } + if (recentAngleDelta > maxAngle) + return false; + index++; + anchorDistance += current.dist(next); + } + return true; +} + +function getLineLength(line) { + let lineLength = 0; + for (let k = 0; k < line.length - 1; k++) { + lineLength += line[k].dist(line[k + 1]); + } + return lineLength; +} +function getAngleWindowSize(shapedText, glyphSize, boxScale) { + return shapedText ? 3 / 5 * glyphSize * boxScale : 0; +} +function getShapedLabelLength(shapedText, shapedIcon) { + return Math.max(shapedText ? shapedText.right - shapedText.left : 0, shapedIcon ? shapedIcon.right - shapedIcon.left : 0); +} +function getCenterAnchor(line, maxAngle, shapedText, shapedIcon, glyphSize, boxScale) { + const angleWindowSize = getAngleWindowSize(shapedText, glyphSize, boxScale); + const labelLength = getShapedLabelLength(shapedText, shapedIcon) * boxScale; + let prevDistance = 0; + const centerDistance = getLineLength(line) / 2; + for (let i = 0; i < line.length - 1; i++) { + const a = line[i], b = line[i + 1]; + const segmentDistance = a.dist(b); + if (prevDistance + segmentDistance > centerDistance) { + const t = (centerDistance - prevDistance) / segmentDistance, x = number(a.x, b.x, t), y = number(a.y, b.y, t); + const anchor = new Anchor(x, y, b.angleTo(a), i); + anchor._round(); + if (!angleWindowSize || checkMaxAngle(line, anchor, labelLength, angleWindowSize, maxAngle)) { + return anchor; + } else { + return; + } + } + prevDistance += segmentDistance; + } +} +function getAnchors(line, spacing, maxAngle, shapedText, shapedIcon, glyphSize, boxScale, overscaling, tileExtent) { + const angleWindowSize = getAngleWindowSize(shapedText, glyphSize, boxScale); + const shapedLabelLength = getShapedLabelLength(shapedText, shapedIcon); + const labelLength = shapedLabelLength * boxScale; + const isLineContinued = line[0].x === 0 || line[0].x === tileExtent || line[0].y === 0 || line[0].y === tileExtent; + if (spacing - labelLength < spacing / 4) { + spacing = labelLength + spacing / 4; + } + const fixedExtraOffset = glyphSize * 2; + const offset = !isLineContinued ? (shapedLabelLength / 2 + fixedExtraOffset) * boxScale * overscaling % spacing : spacing / 2 * overscaling % spacing; + return resample(line, offset, spacing, angleWindowSize, maxAngle, labelLength, isLineContinued, false, tileExtent); +} +function resample(line, offset, spacing, angleWindowSize, maxAngle, labelLength, isLineContinued, placeAtMiddle, tileExtent) { + const halfLabelLength = labelLength / 2; + const lineLength = getLineLength(line); + let distance = 0, markedDistance = offset - spacing; + let anchors = []; + for (let i = 0; i < line.length - 1; i++) { + const a = line[i], b = line[i + 1]; + const segmentDist = a.dist(b), angle = b.angleTo(a); + while (markedDistance + spacing < distance + segmentDist) { + markedDistance += spacing; + const t = (markedDistance - distance) / segmentDist, x = number(a.x, b.x, t), y = number(a.y, b.y, t); + if (x >= 0 && x < tileExtent && y >= 0 && y < tileExtent && markedDistance - halfLabelLength >= 0 && markedDistance + halfLabelLength <= lineLength) { + const anchor = new Anchor(x, y, angle, i); + anchor._round(); + if (!angleWindowSize || checkMaxAngle(line, anchor, labelLength, angleWindowSize, maxAngle)) { + anchors.push(anchor); + } + } + } + distance += segmentDist; + } + if (!placeAtMiddle && !anchors.length && !isLineContinued) { + anchors = resample(line, distance / 2, spacing, angleWindowSize, maxAngle, labelLength, isLineContinued, true, tileExtent); + } + return anchors; +} + +function clipLine(lines, x1, y1, x2, y2) { + const clippedLines = []; + for (let l = 0; l < lines.length; l++) { + const line = lines[l]; + let clippedLine; + for (let i = 0; i < line.length - 1; i++) { + let p0 = line[i]; + let p1 = line[i + 1]; + if (p0.x < x1 && p1.x < x1) { + continue; + } else if (p0.x < x1) { + p0 = new pointGeometry(x1, p0.y + (p1.y - p0.y) * ((x1 - p0.x) / (p1.x - p0.x)))._round(); + } else if (p1.x < x1) { + p1 = new pointGeometry(x1, p0.y + (p1.y - p0.y) * ((x1 - p0.x) / (p1.x - p0.x)))._round(); + } + if (p0.y < y1 && p1.y < y1) { + continue; + } else if (p0.y < y1) { + p0 = new pointGeometry(p0.x + (p1.x - p0.x) * ((y1 - p0.y) / (p1.y - p0.y)), y1)._round(); + } else if (p1.y < y1) { + p1 = new pointGeometry(p0.x + (p1.x - p0.x) * ((y1 - p0.y) / (p1.y - p0.y)), y1)._round(); + } + if (p0.x >= x2 && p1.x >= x2) { + continue; + } else if (p0.x >= x2) { + p0 = new pointGeometry(x2, p0.y + (p1.y - p0.y) * ((x2 - p0.x) / (p1.x - p0.x)))._round(); + } else if (p1.x >= x2) { + p1 = new pointGeometry(x2, p0.y + (p1.y - p0.y) * ((x2 - p0.x) / (p1.x - p0.x)))._round(); + } + if (p0.y >= y2 && p1.y >= y2) { + continue; + } else if (p0.y >= y2) { + p0 = new pointGeometry(p0.x + (p1.x - p0.x) * ((y2 - p0.y) / (p1.y - p0.y)), y2)._round(); + } else if (p1.y >= y2) { + p1 = new pointGeometry(p0.x + (p1.x - p0.x) * ((y2 - p0.y) / (p1.y - p0.y)), y2)._round(); + } + if (!clippedLine || !p0.equals(clippedLine[clippedLine.length - 1])) { + clippedLine = [p0]; + clippedLines.push(clippedLine); + } + clippedLine.push(p1); + } + } + return clippedLines; +} + +function loadGlyphRange (fontstack, range, urlTemplate, requestManager, callback) { + const begin = range * 256; + const end = begin + 255; + const request = requestManager.transformRequest(requestManager.normalizeGlyphsURL(urlTemplate).replace('{fontstack}', fontstack).replace('{range}', `${ begin }-${ end }`), ResourceType.Glyphs); + getArrayBuffer(request, (err, data) => { + if (err) { + callback(err); + } else if (data) { + const glyphs = {}; + for (const glyph of parseGlyphPBF(data)) { + glyphs[glyph.id] = glyph; + } + callback(null, glyphs); + } + }); +} + +var tinySdf = TinySDF; +var default_1$1 = TinySDF; +var INF = 100000000000000000000; +function TinySDF(fontSize, buffer, radius, cutoff, fontFamily, fontWeight) { + this.fontSize = fontSize || 24; + this.buffer = buffer === undefined ? 3 : buffer; + this.cutoff = cutoff || 0.25; + this.fontFamily = fontFamily || 'sans-serif'; + this.fontWeight = fontWeight || 'normal'; + this.radius = radius || 8; + var size = this.size = this.fontSize + this.buffer * 2; + var gridSize = size + this.buffer * 2; + this.canvas = document.createElement('canvas'); + this.canvas.width = this.canvas.height = size; + this.ctx = this.canvas.getContext('2d'); + this.ctx.font = this.fontWeight + ' ' + this.fontSize + 'px ' + this.fontFamily; + this.ctx.textBaseline = 'middle'; + this.ctx.textAlign = 'left'; + this.ctx.fillStyle = 'black'; + this.gridOuter = new Float64Array(gridSize * gridSize); + this.gridInner = new Float64Array(gridSize * gridSize); + this.f = new Float64Array(size); + this.z = new Float64Array(size + 1); + this.v = new Uint16Array(size); + this.middle = Math.round(size / 2 * (navigator.userAgent.indexOf('Gecko/') >= 0 ? 1.2 : 1)); +} +function prepareGrids(imgData, width, height, glyphWidth, glyphHeight, gridOuter, gridInner) { + gridOuter.fill(INF, 0, width * height); + gridInner.fill(0, 0, width * height); + var offset = (width - glyphWidth) / 2; + for (var y = 0; y < glyphHeight; y++) { + for (var x = 0; x < glyphWidth; x++) { + var j = (y + offset) * width + x + offset; + var a = imgData.data[4 * (y * glyphWidth + x) + 3] / 255; + if (a === 1) { + gridOuter[j] = 0; + gridInner[j] = INF; + } else if (a === 0) { + gridOuter[j] = INF; + gridInner[j] = 0; + } else { + var b = Math.max(0, 0.5 - a); + var c = Math.max(0, a - 0.5); + gridOuter[j] = b * b; + gridInner[j] = c * c; + } + } + } +} +function extractAlpha(alphaChannel, width, height, gridOuter, gridInner, radius, cutoff) { + for (var i = 0; i < width * height; i++) { + var d = Math.sqrt(gridOuter[i]) - Math.sqrt(gridInner[i]); + alphaChannel[i] = Math.round(255 - 255 * (d / radius + cutoff)); + } +} +TinySDF.prototype._draw = function (char, getMetrics) { + var textMetrics = this.ctx.measureText(char); + var advance = textMetrics.width; + var doubleBuffer = 2 * this.buffer; + var width, glyphWidth, height, glyphHeight, top; + var imgTop, imgLeft; + if (getMetrics && textMetrics.actualBoundingBoxLeft !== undefined) { + top = Math.floor(textMetrics.actualBoundingBoxAscent) - this.middle; + imgTop = Math.max(0, this.middle - Math.ceil(textMetrics.actualBoundingBoxAscent)); + imgLeft = this.buffer; + glyphWidth = Math.min(this.size, Math.ceil(textMetrics.actualBoundingBoxRight - textMetrics.actualBoundingBoxLeft)); + glyphHeight = Math.min(this.size - imgTop, Math.ceil(textMetrics.actualBoundingBoxAscent + textMetrics.actualBoundingBoxDescent)); + width = glyphWidth + doubleBuffer; + height = glyphHeight + doubleBuffer; + } else { + width = glyphWidth = this.size; + height = glyphHeight = this.size; + top = 0; + imgTop = imgLeft = 0; + } + var imgData; + if (glyphWidth && glyphHeight) { + this.ctx.clearRect(imgLeft, imgTop, glyphWidth, glyphHeight); + this.ctx.fillText(char, this.buffer, this.middle); + imgData = this.ctx.getImageData(imgLeft, imgTop, glyphWidth, glyphHeight); + } + var alphaChannel = new Uint8ClampedArray(width * height); + prepareGrids(imgData, width, height, glyphWidth, glyphHeight, this.gridOuter, this.gridInner); + edt(this.gridOuter, width, height, this.f, this.v, this.z); + edt(this.gridInner, width, height, this.f, this.v, this.z); + extractAlpha(alphaChannel, width, height, this.gridOuter, this.gridInner, this.radius, this.cutoff); + return { + data: alphaChannel, + metrics: { + width: glyphWidth, + height: glyphHeight, + sdfWidth: width, + sdfHeight: height, + top: top, + left: 0, + advance: advance, + fontAscent: textMetrics.fontBoundingBoxAscent + } + }; +}; +TinySDF.prototype.draw = function (char) { + return this._draw(char, false).data; +}; +TinySDF.prototype.drawWithMetrics = function (char) { + return this._draw(char, true); +}; +function edt(data, width, height, f, v, z) { + for (var x = 0; x < width; x++) + edt1d(data, x, width, height, f, v, z); + for (var y = 0; y < height; y++) + edt1d(data, y * width, 1, width, f, v, z); +} +function edt1d(grid, offset, stride, length, f, v, z) { + var q, k, s, r; + v[0] = 0; + z[0] = -INF; + z[1] = INF; + for (q = 0; q < length; q++) + f[q] = grid[offset + q * stride]; + for (q = 1, k = 0, s = 0; q < length; q++) { + do { + r = v[k]; + s = (f[q] - f[r] + q * q - r * r) / (q - r) / 2; + } while (s <= z[k] && --k > -1); + k++; + v[k] = q; + z[k] = s; + z[k + 1] = INF; + } + for (q = 0, k = 0; q < length; q++) { + while (z[k + 1] < q) + k++; + r = v[k]; + grid[offset + q * stride] = f[r] + (q - r) * (q - r); + } +} +tinySdf.default = default_1$1; + +const SDF_SCALE = 2; +const LocalGlyphMode = { + none: 0, + ideographs: 1, + all: 2 +}; +class GlyphManager { + constructor(requestManager, localGlyphMode, localFontFamily) { + this.requestManager = requestManager; + this.localGlyphMode = localGlyphMode; + this.localFontFamily = localFontFamily; + this.entries = {}; + this.localGlyphs = { + '200': {}, + '400': {}, + '500': {}, + '900': {} + }; + } + setURL(url) { + this.url = url; + } + getGlyphs(glyphs, callback) { + const all = []; + for (const stack in glyphs) { + for (const id of glyphs[stack]) { + all.push({ + stack, + id + }); + } + } + asyncAll(all, ({stack, id}, callback) => { + let entry = this.entries[stack]; + if (!entry) { + entry = this.entries[stack] = { + glyphs: {}, + requests: {}, + ranges: {} + }; + } + let glyph = entry.glyphs[id]; + if (glyph !== undefined) { + callback(null, { + stack, + id, + glyph + }); + return; + } + glyph = this._tinySDF(entry, stack, id); + if (glyph) { + entry.glyphs[id] = glyph; + callback(null, { + stack, + id, + glyph + }); + return; + } + const range = Math.floor(id / 256); + if (range * 256 > 65535) { + callback(new Error('glyphs > 65535 not supported')); + return; + } + if (entry.ranges[range]) { + callback(null, { + stack, + id, + glyph + }); + return; + } + let requests = entry.requests[range]; + if (!requests) { + requests = entry.requests[range] = []; + GlyphManager.loadGlyphRange(stack, range, this.url, this.requestManager, (err, response) => { + if (response) { + for (const id in response) { + if (!this._doesCharSupportLocalGlyph(+id)) { + entry.glyphs[+id] = response[+id]; + } + } + entry.ranges[range] = true; + } + for (const cb of requests) { + cb(err, response); + } + delete entry.requests[range]; + }); + } + requests.push((err, result) => { + if (err) { + callback(err); + } else if (result) { + callback(null, { + stack, + id, + glyph: result[id] || null + }); + } + }); + }, (err, glyphs) => { + if (err) { + callback(err); + } else if (glyphs) { + const result = {}; + for (const {stack, id, glyph} of glyphs) { + (result[stack] || (result[stack] = {}))[id] = glyph && { + id: glyph.id, + bitmap: glyph.bitmap.clone(), + metrics: glyph.metrics + }; + } + callback(null, result); + } + }); + } + _doesCharSupportLocalGlyph(id) { + if (this.localGlyphMode === LocalGlyphMode.none) { + return false; + } else if (this.localGlyphMode === LocalGlyphMode.all) { + return !!this.localFontFamily; + } else { + return !!this.localFontFamily && (unicodeBlockLookup['CJK Unified Ideographs'](id) || unicodeBlockLookup['Hangul Syllables'](id) || unicodeBlockLookup['Hiragana'](id) || unicodeBlockLookup['Katakana'](id)); + } + } + _tinySDF(entry, stack, id) { + const family = this.localFontFamily; + if (!family) { + return; + } + if (!this._doesCharSupportLocalGlyph(id)) { + return; + } + let tinySDF = entry.tinySDF; + if (!tinySDF) { + let fontWeight = '400'; + if (/bold/i.test(stack)) { + fontWeight = '900'; + } else if (/medium/i.test(stack)) { + fontWeight = '500'; + } else if (/light/i.test(stack)) { + fontWeight = '200'; + } + tinySDF = entry.tinySDF = new GlyphManager.TinySDF(24 * SDF_SCALE, 3 * SDF_SCALE, 8 * SDF_SCALE, 0.25, family, fontWeight); + } + if (this.localGlyphs[tinySDF.fontWeight][id]) { + return this.localGlyphs[tinySDF.fontWeight][id]; + } + const {data, metrics} = tinySDF.drawWithMetrics(String.fromCharCode(id)); + const {fontAscent, sdfWidth, sdfHeight, width, height, left, top, advance} = metrics; + const ascent = fontAscent ? fontAscent / SDF_SCALE : 17; + const baselineAdjustment = ascent - 9; + const glyph = this.localGlyphs[tinySDF.fontWeight][id] = { + id, + bitmap: new AlphaImage({ + width: sdfWidth, + height: sdfHeight + }, data), + metrics: { + width: width / SDF_SCALE, + height: height / SDF_SCALE, + left: left / SDF_SCALE, + top: top / SDF_SCALE - baselineAdjustment, + advance: advance / SDF_SCALE, + localGlyph: true + } + }; + return glyph; + } +} +GlyphManager.loadGlyphRange = loadGlyphRange; +GlyphManager.TinySDF = tinySdf; + +const border$1 = IMAGE_PADDING; +function getIconQuads(shapedIcon, iconRotate, isSDFIcon, hasIconTextFit) { + const quads = []; + const image = shapedIcon.image; + const pixelRatio = image.pixelRatio; + const imageWidth = image.paddedRect.w - 2 * border$1; + const imageHeight = image.paddedRect.h - 2 * border$1; + const iconWidth = shapedIcon.right - shapedIcon.left; + const iconHeight = shapedIcon.bottom - shapedIcon.top; + const stretchX = image.stretchX || [[ + 0, + imageWidth + ]]; + const stretchY = image.stretchY || [[ + 0, + imageHeight + ]]; + const reduceRanges = (sum, range) => sum + range[1] - range[0]; + const stretchWidth = stretchX.reduce(reduceRanges, 0); + const stretchHeight = stretchY.reduce(reduceRanges, 0); + const fixedWidth = imageWidth - stretchWidth; + const fixedHeight = imageHeight - stretchHeight; + let stretchOffsetX = 0; + let stretchContentWidth = stretchWidth; + let stretchOffsetY = 0; + let stretchContentHeight = stretchHeight; + let fixedOffsetX = 0; + let fixedContentWidth = fixedWidth; + let fixedOffsetY = 0; + let fixedContentHeight = fixedHeight; + if (image.content && hasIconTextFit) { + const content = image.content; + stretchOffsetX = sumWithinRange(stretchX, 0, content[0]); + stretchOffsetY = sumWithinRange(stretchY, 0, content[1]); + stretchContentWidth = sumWithinRange(stretchX, content[0], content[2]); + stretchContentHeight = sumWithinRange(stretchY, content[1], content[3]); + fixedOffsetX = content[0] - stretchOffsetX; + fixedOffsetY = content[1] - stretchOffsetY; + fixedContentWidth = content[2] - content[0] - stretchContentWidth; + fixedContentHeight = content[3] - content[1] - stretchContentHeight; + } + const makeBox = (left, top, right, bottom) => { + const leftEm = getEmOffset(left.stretch - stretchOffsetX, stretchContentWidth, iconWidth, shapedIcon.left); + const leftPx = getPxOffset(left.fixed - fixedOffsetX, fixedContentWidth, left.stretch, stretchWidth); + const topEm = getEmOffset(top.stretch - stretchOffsetY, stretchContentHeight, iconHeight, shapedIcon.top); + const topPx = getPxOffset(top.fixed - fixedOffsetY, fixedContentHeight, top.stretch, stretchHeight); + const rightEm = getEmOffset(right.stretch - stretchOffsetX, stretchContentWidth, iconWidth, shapedIcon.left); + const rightPx = getPxOffset(right.fixed - fixedOffsetX, fixedContentWidth, right.stretch, stretchWidth); + const bottomEm = getEmOffset(bottom.stretch - stretchOffsetY, stretchContentHeight, iconHeight, shapedIcon.top); + const bottomPx = getPxOffset(bottom.fixed - fixedOffsetY, fixedContentHeight, bottom.stretch, stretchHeight); + const tl = new pointGeometry(leftEm, topEm); + const tr = new pointGeometry(rightEm, topEm); + const br = new pointGeometry(rightEm, bottomEm); + const bl = new pointGeometry(leftEm, bottomEm); + const pixelOffsetTL = new pointGeometry(leftPx / pixelRatio, topPx / pixelRatio); + const pixelOffsetBR = new pointGeometry(rightPx / pixelRatio, bottomPx / pixelRatio); + const angle = iconRotate * Math.PI / 180; + if (angle) { + const sin = Math.sin(angle), cos = Math.cos(angle), matrix = [ + cos, + -sin, + sin, + cos + ]; + tl._matMult(matrix); + tr._matMult(matrix); + bl._matMult(matrix); + br._matMult(matrix); + } + const x1 = left.stretch + left.fixed; + const x2 = right.stretch + right.fixed; + const y1 = top.stretch + top.fixed; + const y2 = bottom.stretch + bottom.fixed; + const subRect = { + x: image.paddedRect.x + border$1 + x1, + y: image.paddedRect.y + border$1 + y1, + w: x2 - x1, + h: y2 - y1 + }; + const minFontScaleX = fixedContentWidth / pixelRatio / iconWidth; + const minFontScaleY = fixedContentHeight / pixelRatio / iconHeight; + return { + tl, + tr, + bl, + br, + tex: subRect, + writingMode: undefined, + glyphOffset: [ + 0, + 0 + ], + sectionIndex: 0, + pixelOffsetTL, + pixelOffsetBR, + minFontScaleX, + minFontScaleY, + isSDF: isSDFIcon + }; + }; + if (!hasIconTextFit || !image.stretchX && !image.stretchY) { + quads.push(makeBox({ + fixed: 0, + stretch: -1 + }, { + fixed: 0, + stretch: -1 + }, { + fixed: 0, + stretch: imageWidth + 1 + }, { + fixed: 0, + stretch: imageHeight + 1 + })); + } else { + const xCuts = stretchZonesToCuts(stretchX, fixedWidth, stretchWidth); + const yCuts = stretchZonesToCuts(stretchY, fixedHeight, stretchHeight); + for (let xi = 0; xi < xCuts.length - 1; xi++) { + const x1 = xCuts[xi]; + const x2 = xCuts[xi + 1]; + for (let yi = 0; yi < yCuts.length - 1; yi++) { + const y1 = yCuts[yi]; + const y2 = yCuts[yi + 1]; + quads.push(makeBox(x1, y1, x2, y2)); + } + } + } + return quads; +} +function sumWithinRange(ranges, min, max) { + let sum = 0; + for (const range of ranges) { + sum += Math.max(min, Math.min(max, range[1])) - Math.max(min, Math.min(max, range[0])); + } + return sum; +} +function stretchZonesToCuts(stretchZones, fixedSize, stretchSize) { + const cuts = [{ + fixed: -border$1, + stretch: 0 + }]; + for (const [c1, c2] of stretchZones) { + const last = cuts[cuts.length - 1]; + cuts.push({ + fixed: c1 - last.stretch, + stretch: last.stretch + }); + cuts.push({ + fixed: c1 - last.stretch, + stretch: last.stretch + (c2 - c1) + }); + } + cuts.push({ + fixed: fixedSize + border$1, + stretch: stretchSize + }); + return cuts; +} +function getEmOffset(stretchOffset, stretchSize, iconSize, iconOffset) { + return stretchOffset / stretchSize * iconSize + iconOffset; +} +function getPxOffset(fixedOffset, fixedSize, stretchOffset, stretchSize) { + return fixedOffset - fixedSize * stretchOffset / stretchSize; +} +function getGlyphQuads(anchor, shaping, textOffset, layer, alongLine, feature, imageMap, allowVerticalPlacement) { + const textRotate = layer.layout.get('text-rotate').evaluate(feature, {}) * Math.PI / 180; + const quads = []; + for (const line of shaping.positionedLines) { + for (const positionedGlyph of line.positionedGlyphs) { + if (!positionedGlyph.rect) + continue; + const textureRect = positionedGlyph.rect || {}; + const glyphPadding = 1; + let rectBuffer = GLYPH_PBF_BORDER + glyphPadding; + let isSDF = true; + let pixelRatio = 1; + let lineOffset = 0; + const rotateVerticalGlyph = (alongLine || allowVerticalPlacement) && positionedGlyph.vertical; + const halfAdvance = positionedGlyph.metrics.advance * positionedGlyph.scale / 2; + if (allowVerticalPlacement && shaping.verticalizable) { + const scaledGlyphOffset = (positionedGlyph.scale - 1) * ONE_EM; + const imageOffset = (ONE_EM - positionedGlyph.metrics.width * positionedGlyph.scale) / 2; + lineOffset = line.lineOffset / 2 - (positionedGlyph.imageName ? -imageOffset : scaledGlyphOffset); + } + if (positionedGlyph.imageName) { + const image = imageMap[positionedGlyph.imageName]; + isSDF = image.sdf; + pixelRatio = image.pixelRatio; + rectBuffer = IMAGE_PADDING / pixelRatio; + } + const glyphOffset = alongLine ? [ + positionedGlyph.x + halfAdvance, + positionedGlyph.y + ] : [ + 0, + 0 + ]; + let builtInOffset = alongLine ? [ + 0, + 0 + ] : [ + positionedGlyph.x + halfAdvance + textOffset[0], + positionedGlyph.y + textOffset[1] - lineOffset + ]; + let verticalizedLabelOffset = [ + 0, + 0 + ]; + if (rotateVerticalGlyph) { + verticalizedLabelOffset = builtInOffset; + builtInOffset = [ + 0, + 0 + ]; + } + const x1 = (positionedGlyph.metrics.left - rectBuffer) * positionedGlyph.scale - halfAdvance + builtInOffset[0]; + const y1 = (-positionedGlyph.metrics.top - rectBuffer) * positionedGlyph.scale + builtInOffset[1]; + const x2 = x1 + textureRect.w * positionedGlyph.scale / (pixelRatio * (positionedGlyph.localGlyph ? SDF_SCALE : 1)); + const y2 = y1 + textureRect.h * positionedGlyph.scale / (pixelRatio * (positionedGlyph.localGlyph ? SDF_SCALE : 1)); + const tl = new pointGeometry(x1, y1); + const tr = new pointGeometry(x2, y1); + const bl = new pointGeometry(x1, y2); + const br = new pointGeometry(x2, y2); + if (rotateVerticalGlyph) { + const center = new pointGeometry(-halfAdvance, halfAdvance - SHAPING_DEFAULT_OFFSET); + const verticalRotation = -Math.PI / 2; + const xHalfWidthOffsetCorrection = ONE_EM / 2 - halfAdvance; + const yImageOffsetCorrection = positionedGlyph.imageName ? xHalfWidthOffsetCorrection : 0; + const halfWidthOffsetCorrection = new pointGeometry(5 - SHAPING_DEFAULT_OFFSET - xHalfWidthOffsetCorrection, -yImageOffsetCorrection); + const verticalOffsetCorrection = new pointGeometry(...verticalizedLabelOffset); + tl._rotateAround(verticalRotation, center)._add(halfWidthOffsetCorrection)._add(verticalOffsetCorrection); + tr._rotateAround(verticalRotation, center)._add(halfWidthOffsetCorrection)._add(verticalOffsetCorrection); + bl._rotateAround(verticalRotation, center)._add(halfWidthOffsetCorrection)._add(verticalOffsetCorrection); + br._rotateAround(verticalRotation, center)._add(halfWidthOffsetCorrection)._add(verticalOffsetCorrection); + } + if (textRotate) { + const sin = Math.sin(textRotate), cos = Math.cos(textRotate), matrix = [ + cos, + -sin, + sin, + cos + ]; + tl._matMult(matrix); + tr._matMult(matrix); + bl._matMult(matrix); + br._matMult(matrix); + } + const pixelOffsetTL = new pointGeometry(0, 0); + const pixelOffsetBR = new pointGeometry(0, 0); + const minFontScaleX = 0; + const minFontScaleY = 0; + quads.push({ + tl, + tr, + bl, + br, + tex: textureRect, + writingMode: shaping.writingMode, + glyphOffset, + sectionIndex: positionedGlyph.sectionIndex, + isSDF, + pixelOffsetTL, + pixelOffsetBR, + minFontScaleX, + minFontScaleY + }); + } + } + return quads; +} + +class TinyQueue { + constructor(data = [], compare = defaultCompare$1) { + this.data = data; + this.length = this.data.length; + this.compare = compare; + if (this.length > 0) { + for (let i = (this.length >> 1) - 1; i >= 0; i--) + this._down(i); + } + } + push(item) { + this.data.push(item); + this.length++; + this._up(this.length - 1); + } + pop() { + if (this.length === 0) + return undefined; + const top = this.data[0]; + const bottom = this.data.pop(); + this.length--; + if (this.length > 0) { + this.data[0] = bottom; + this._down(0); + } + return top; + } + peek() { + return this.data[0]; + } + _up(pos) { + const {data, compare} = this; + const item = data[pos]; + while (pos > 0) { + const parent = pos - 1 >> 1; + const current = data[parent]; + if (compare(item, current) >= 0) + break; + data[pos] = current; + pos = parent; + } + data[pos] = item; + } + _down(pos) { + const {data, compare} = this; + const halfLength = this.length >> 1; + const item = data[pos]; + while (pos < halfLength) { + let left = (pos << 1) + 1; + let best = data[left]; + const right = left + 1; + if (right < this.length && compare(data[right], best) < 0) { + left = right; + best = data[right]; + } + if (compare(best, item) >= 0) + break; + data[pos] = best; + pos = left; + } + data[pos] = item; + } +} +function defaultCompare$1(a, b) { + return a < b ? -1 : a > b ? 1 : 0; +} + +function findPoleOfInaccessibility (polygonRings, precision = 1, debug = false) { + let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity; + const outerRing = polygonRings[0]; + for (let i = 0; i < outerRing.length; i++) { + const p = outerRing[i]; + if (!i || p.x < minX) + minX = p.x; + if (!i || p.y < minY) + minY = p.y; + if (!i || p.x > maxX) + maxX = p.x; + if (!i || p.y > maxY) + maxY = p.y; + } + const width = maxX - minX; + const height = maxY - minY; + const cellSize = Math.min(width, height); + let h = cellSize / 2; + const cellQueue = new TinyQueue([], compareMax); + if (cellSize === 0) + return new pointGeometry(minX, minY); + for (let x = minX; x < maxX; x += cellSize) { + for (let y = minY; y < maxY; y += cellSize) { + cellQueue.push(new Cell(x + h, y + h, h, polygonRings)); + } + } + let bestCell = getCentroidCell(polygonRings); + let numProbes = cellQueue.length; + while (cellQueue.length) { + const cell = cellQueue.pop(); + if (cell.d > bestCell.d || !bestCell.d) { + bestCell = cell; + if (debug) + console.log('found best %d after %d probes', Math.round(10000 * cell.d) / 10000, numProbes); + } + if (cell.max - bestCell.d <= precision) + continue; + h = cell.h / 2; + cellQueue.push(new Cell(cell.p.x - h, cell.p.y - h, h, polygonRings)); + cellQueue.push(new Cell(cell.p.x + h, cell.p.y - h, h, polygonRings)); + cellQueue.push(new Cell(cell.p.x - h, cell.p.y + h, h, polygonRings)); + cellQueue.push(new Cell(cell.p.x + h, cell.p.y + h, h, polygonRings)); + numProbes += 4; + } + if (debug) { + console.log(`num probes: ${ numProbes }`); + console.log(`best distance: ${ bestCell.d }`); + } + return bestCell.p; +} +function compareMax(a, b) { + return b.max - a.max; +} +function Cell(x, y, h, polygon) { + this.p = new pointGeometry(x, y); + this.h = h; + this.d = pointToPolygonDist(this.p, polygon); + this.max = this.d + this.h * Math.SQRT2; +} +function pointToPolygonDist(p, polygon) { + let inside = false; + let minDistSq = Infinity; + for (let k = 0; k < polygon.length; k++) { + const ring = polygon[k]; + for (let i = 0, len = ring.length, j = len - 1; i < len; j = i++) { + const a = ring[i]; + const b = ring[j]; + if (a.y > p.y !== b.y > p.y && p.x < (b.x - a.x) * (p.y - a.y) / (b.y - a.y) + a.x) + inside = !inside; + minDistSq = Math.min(minDistSq, distToSegmentSquared(p, a, b)); + } + } + return (inside ? 1 : -1) * Math.sqrt(minDistSq); +} +function getCentroidCell(polygon) { + let area = 0; + let x = 0; + let y = 0; + const points = polygon[0]; + for (let i = 0, len = points.length, j = len - 1; i < len; j = i++) { + const a = points[i]; + const b = points[j]; + const f = a.x * b.y - b.x * a.y; + x += (a.x + b.x) * f; + y += (a.y + b.y) * f; + area += f * 3; + } + return new Cell(x / area, y / area, 0, polygon); +} + +const baselineOffset = 7; +const INVALID_TEXT_OFFSET = Number.POSITIVE_INFINITY; +function evaluateVariableOffset(anchor, offset) { + function fromRadialOffset(anchor, radialOffset) { + let x = 0, y = 0; + if (radialOffset < 0) + radialOffset = 0; + const hypotenuse = radialOffset / Math.sqrt(2); + switch (anchor) { + case 'top-right': + case 'top-left': + y = hypotenuse - baselineOffset; + break; + case 'bottom-right': + case 'bottom-left': + y = -hypotenuse + baselineOffset; + break; + case 'bottom': + y = -radialOffset + baselineOffset; + break; + case 'top': + y = radialOffset - baselineOffset; + break; + } + switch (anchor) { + case 'top-right': + case 'bottom-right': + x = -hypotenuse; + break; + case 'top-left': + case 'bottom-left': + x = hypotenuse; + break; + case 'left': + x = radialOffset; + break; + case 'right': + x = -radialOffset; + break; + } + return [ + x, + y + ]; + } + function fromTextOffset(anchor, offsetX, offsetY) { + let x = 0, y = 0; + offsetX = Math.abs(offsetX); + offsetY = Math.abs(offsetY); + switch (anchor) { + case 'top-right': + case 'top-left': + case 'top': + y = offsetY - baselineOffset; + break; + case 'bottom-right': + case 'bottom-left': + case 'bottom': + y = -offsetY + baselineOffset; + break; + } + switch (anchor) { + case 'top-right': + case 'bottom-right': + case 'right': + x = -offsetX; + break; + case 'top-left': + case 'bottom-left': + case 'left': + x = offsetX; + break; + } + return [ + x, + y + ]; + } + return offset[1] !== INVALID_TEXT_OFFSET ? fromTextOffset(anchor, offset[0], offset[1]) : fromRadialOffset(anchor, offset[0]); +} +function performSymbolLayout(bucket, glyphMap, glyphPositions, imageMap, imagePositions, showCollisionBoxes, canonical, tileZoom) { + bucket.createArrays(); + const tileSize = 512 * bucket.overscaling; + bucket.tilePixelRatio = EXTENT$1 / tileSize; + bucket.compareText = {}; + bucket.iconsNeedLinear = false; + const layout = bucket.layers[0].layout; + const unevaluatedLayoutValues = bucket.layers[0]._unevaluatedLayout._values; + const sizes = {}; + if (bucket.textSizeData.kind === 'composite') { + const {minZoom, maxZoom} = bucket.textSizeData; + sizes.compositeTextSizes = [ + unevaluatedLayoutValues['text-size'].possiblyEvaluate(new EvaluationParameters(minZoom), canonical), + unevaluatedLayoutValues['text-size'].possiblyEvaluate(new EvaluationParameters(maxZoom), canonical) + ]; + } + if (bucket.iconSizeData.kind === 'composite') { + const {minZoom, maxZoom} = bucket.iconSizeData; + sizes.compositeIconSizes = [ + unevaluatedLayoutValues['icon-size'].possiblyEvaluate(new EvaluationParameters(minZoom), canonical), + unevaluatedLayoutValues['icon-size'].possiblyEvaluate(new EvaluationParameters(maxZoom), canonical) + ]; + } + sizes.layoutTextSize = unevaluatedLayoutValues['text-size'].possiblyEvaluate(new EvaluationParameters(tileZoom + 1), canonical); + sizes.layoutIconSize = unevaluatedLayoutValues['icon-size'].possiblyEvaluate(new EvaluationParameters(tileZoom + 1), canonical); + sizes.textMaxSize = unevaluatedLayoutValues['text-size'].possiblyEvaluate(new EvaluationParameters(18), canonical); + const lineHeight = layout.get('text-line-height') * ONE_EM; + const textAlongLine = layout.get('text-rotation-alignment') === 'map' && layout.get('symbol-placement') !== 'point'; + const keepUpright = layout.get('text-keep-upright'); + const textSize = layout.get('text-size'); + for (const feature of bucket.features) { + const fontstack = layout.get('text-font').evaluate(feature, {}, canonical).join(','); + const layoutTextSizeThisZoom = textSize.evaluate(feature, {}, canonical); + const layoutTextSize = sizes.layoutTextSize.evaluate(feature, {}, canonical); + const layoutIconSize = sizes.layoutIconSize.evaluate(feature, {}, canonical); + const shapedTextOrientations = { + horizontal: {}, + vertical: undefined + }; + const text = feature.text; + let textOffset = [ + 0, + 0 + ]; + if (text) { + const unformattedText = text.toString(); + const spacing = layout.get('text-letter-spacing').evaluate(feature, {}, canonical) * ONE_EM; + const spacingIfAllowed = allowsLetterSpacing(unformattedText) ? spacing : 0; + const textAnchor = layout.get('text-anchor').evaluate(feature, {}, canonical); + const variableTextAnchor = layout.get('text-variable-anchor'); + if (!variableTextAnchor) { + const radialOffset = layout.get('text-radial-offset').evaluate(feature, {}, canonical); + if (radialOffset) { + textOffset = evaluateVariableOffset(textAnchor, [ + radialOffset * ONE_EM, + INVALID_TEXT_OFFSET + ]); + } else { + textOffset = layout.get('text-offset').evaluate(feature, {}, canonical).map(t => t * ONE_EM); + } + } + let textJustify = textAlongLine ? 'center' : layout.get('text-justify').evaluate(feature, {}, canonical); + const symbolPlacement = layout.get('symbol-placement'); + const maxWidth = symbolPlacement === 'point' ? layout.get('text-max-width').evaluate(feature, {}, canonical) * ONE_EM : 0; + const addVerticalShapingForPointLabelIfNeeded = () => { + if (bucket.allowVerticalPlacement && allowsVerticalWritingMode(unformattedText)) { + shapedTextOrientations.vertical = shapeText(text, glyphMap, glyphPositions, imagePositions, fontstack, maxWidth, lineHeight, textAnchor, 'left', spacingIfAllowed, textOffset, WritingMode.vertical, true, symbolPlacement, layoutTextSize, layoutTextSizeThisZoom); + } + }; + if (!textAlongLine && variableTextAnchor) { + const justifications = textJustify === 'auto' ? variableTextAnchor.map(a => getAnchorJustification(a)) : [textJustify]; + let singleLine = false; + for (let i = 0; i < justifications.length; i++) { + const justification = justifications[i]; + if (shapedTextOrientations.horizontal[justification]) + continue; + if (singleLine) { + shapedTextOrientations.horizontal[justification] = shapedTextOrientations.horizontal[0]; + } else { + const shaping = shapeText(text, glyphMap, glyphPositions, imagePositions, fontstack, maxWidth, lineHeight, 'center', justification, spacingIfAllowed, textOffset, WritingMode.horizontal, false, symbolPlacement, layoutTextSize, layoutTextSizeThisZoom); + if (shaping) { + shapedTextOrientations.horizontal[justification] = shaping; + singleLine = shaping.positionedLines.length === 1; + } + } + } + addVerticalShapingForPointLabelIfNeeded(); + } else { + if (textJustify === 'auto') { + textJustify = getAnchorJustification(textAnchor); + } + const shaping = shapeText(text, glyphMap, glyphPositions, imagePositions, fontstack, maxWidth, lineHeight, textAnchor, textJustify, spacingIfAllowed, textOffset, WritingMode.horizontal, false, symbolPlacement, layoutTextSize, layoutTextSizeThisZoom); + if (shaping) + shapedTextOrientations.horizontal[textJustify] = shaping; + addVerticalShapingForPointLabelIfNeeded(); + if (allowsVerticalWritingMode(unformattedText) && textAlongLine && keepUpright) { + shapedTextOrientations.vertical = shapeText(text, glyphMap, glyphPositions, imagePositions, fontstack, maxWidth, lineHeight, textAnchor, textJustify, spacingIfAllowed, textOffset, WritingMode.vertical, false, symbolPlacement, layoutTextSize, layoutTextSizeThisZoom); + } + } + } + let shapedIcon; + let isSDFIcon = false; + if (feature.icon && feature.icon.name) { + const image = imageMap[feature.icon.name]; + if (image) { + shapedIcon = shapeIcon(imagePositions[feature.icon.name], layout.get('icon-offset').evaluate(feature, {}, canonical), layout.get('icon-anchor').evaluate(feature, {}, canonical)); + isSDFIcon = image.sdf; + if (bucket.sdfIcons === undefined) { + bucket.sdfIcons = image.sdf; + } else if (bucket.sdfIcons !== image.sdf) { + warnOnce('Style sheet warning: Cannot mix SDF and non-SDF icons in one buffer'); + } + if (image.pixelRatio !== bucket.pixelRatio) { + bucket.iconsNeedLinear = true; + } else if (layout.get('icon-rotate').constantOr(1) !== 0) { + bucket.iconsNeedLinear = true; + } + } + } + const shapedText = getDefaultHorizontalShaping(shapedTextOrientations.horizontal) || shapedTextOrientations.vertical; + bucket.iconsInText = shapedText ? shapedText.iconsInText : false; + if (shapedText || shapedIcon) { + addFeature(bucket, feature, shapedTextOrientations, shapedIcon, imageMap, sizes, layoutTextSize, layoutIconSize, textOffset, isSDFIcon, canonical); + } + } + if (showCollisionBoxes) { + bucket.generateCollisionDebugBuffers(tileZoom, bucket.collisionBoxArray); + } +} +function getAnchorJustification(anchor) { + switch (anchor) { + case 'right': + case 'top-right': + case 'bottom-right': + return 'right'; + case 'left': + case 'top-left': + case 'bottom-left': + return 'left'; + } + return 'center'; +} +function addFeature(bucket, feature, shapedTextOrientations, shapedIcon, imageMap, sizes, layoutTextSize, layoutIconSize, textOffset, isSDFIcon, canonical) { + let textMaxSize = sizes.textMaxSize.evaluate(feature, {}, canonical); + if (textMaxSize === undefined) { + textMaxSize = layoutTextSize; + } + const layout = bucket.layers[0].layout; + const iconOffset = layout.get('icon-offset').evaluate(feature, {}, canonical); + const defaultHorizontalShaping = getDefaultHorizontalShaping(shapedTextOrientations.horizontal); + const glyphSize = ONE_EM, fontScale = layoutTextSize / glyphSize, textBoxScale = bucket.tilePixelRatio * fontScale, textMaxBoxScale = bucket.tilePixelRatio * textMaxSize / glyphSize, iconBoxScale = bucket.tilePixelRatio * layoutIconSize, symbolMinDistance = bucket.tilePixelRatio * layout.get('symbol-spacing'), textPadding = layout.get('text-padding') * bucket.tilePixelRatio, iconPadding = layout.get('icon-padding') * bucket.tilePixelRatio, textMaxAngle = degToRad(layout.get('text-max-angle')), textAlongLine = layout.get('text-rotation-alignment') === 'map' && layout.get('symbol-placement') !== 'point', iconAlongLine = layout.get('icon-rotation-alignment') === 'map' && layout.get('symbol-placement') !== 'point', symbolPlacement = layout.get('symbol-placement'), textRepeatDistance = symbolMinDistance / 2; + const iconTextFit = layout.get('icon-text-fit'); + let verticallyShapedIcon; + if (shapedIcon && iconTextFit !== 'none') { + if (bucket.allowVerticalPlacement && shapedTextOrientations.vertical) { + verticallyShapedIcon = fitIconToText(shapedIcon, shapedTextOrientations.vertical, iconTextFit, layout.get('icon-text-fit-padding'), iconOffset, fontScale); + } + if (defaultHorizontalShaping) { + shapedIcon = fitIconToText(shapedIcon, defaultHorizontalShaping, iconTextFit, layout.get('icon-text-fit-padding'), iconOffset, fontScale); + } + } + const addSymbolAtAnchor = (line, anchor) => { + if (anchor.x < 0 || anchor.x >= EXTENT$1 || anchor.y < 0 || anchor.y >= EXTENT$1) { + return; + } + addSymbol(bucket, anchor, line, shapedTextOrientations, shapedIcon, imageMap, verticallyShapedIcon, bucket.layers[0], bucket.collisionBoxArray, feature.index, feature.sourceLayerIndex, bucket.index, textBoxScale, textPadding, textAlongLine, textOffset, iconBoxScale, iconPadding, iconAlongLine, iconOffset, feature, sizes, isSDFIcon, canonical, layoutTextSize); + }; + if (symbolPlacement === 'line') { + for (const line of clipLine(feature.geometry, 0, 0, EXTENT$1, EXTENT$1)) { + const anchors = getAnchors(line, symbolMinDistance, textMaxAngle, shapedTextOrientations.vertical || defaultHorizontalShaping, shapedIcon, glyphSize, textMaxBoxScale, bucket.overscaling, EXTENT$1); + for (const anchor of anchors) { + const shapedText = defaultHorizontalShaping; + if (!shapedText || !anchorIsTooClose(bucket, shapedText.text, textRepeatDistance, anchor)) { + addSymbolAtAnchor(line, anchor); + } + } + } + } else if (symbolPlacement === 'line-center') { + for (const line of feature.geometry) { + if (line.length > 1) { + const anchor = getCenterAnchor(line, textMaxAngle, shapedTextOrientations.vertical || defaultHorizontalShaping, shapedIcon, glyphSize, textMaxBoxScale); + if (anchor) { + addSymbolAtAnchor(line, anchor); + } + } + } + } else if (feature.type === 'Polygon') { + for (const polygon of classifyRings(feature.geometry, 0)) { + const poi = findPoleOfInaccessibility(polygon, 16); + addSymbolAtAnchor(polygon[0], new Anchor(poi.x, poi.y, 0)); + } + } else if (feature.type === 'LineString') { + for (const line of feature.geometry) { + addSymbolAtAnchor(line, new Anchor(line[0].x, line[0].y, 0)); + } + } else if (feature.type === 'Point') { + for (const points of feature.geometry) { + for (const point of points) { + addSymbolAtAnchor([point], new Anchor(point.x, point.y, 0)); + } + } + } +} +const MAX_GLYPH_ICON_SIZE = 255; +const MAX_PACKED_SIZE = MAX_GLYPH_ICON_SIZE * SIZE_PACK_FACTOR; +function addTextVertices(bucket, anchor, shapedText, imageMap, layer, textAlongLine, feature, textOffset, lineArray, writingMode, placementTypes, placedTextSymbolIndices, placedIconIndex, sizes, canonical) { + const glyphQuads = getGlyphQuads(anchor, shapedText, textOffset, layer, textAlongLine, feature, imageMap, bucket.allowVerticalPlacement); + const sizeData = bucket.textSizeData; + let textSizeData = null; + if (sizeData.kind === 'source') { + textSizeData = [SIZE_PACK_FACTOR * layer.layout.get('text-size').evaluate(feature, {}, canonical)]; + if (textSizeData[0] > MAX_PACKED_SIZE) { + warnOnce(`${ bucket.layerIds[0] }: Value for "text-size" is >= ${ MAX_GLYPH_ICON_SIZE }. Reduce your "text-size".`); + } + } else if (sizeData.kind === 'composite') { + textSizeData = [ + SIZE_PACK_FACTOR * sizes.compositeTextSizes[0].evaluate(feature, {}, canonical), + SIZE_PACK_FACTOR * sizes.compositeTextSizes[1].evaluate(feature, {}, canonical) + ]; + if (textSizeData[0] > MAX_PACKED_SIZE || textSizeData[1] > MAX_PACKED_SIZE) { + warnOnce(`${ bucket.layerIds[0] }: Value for "text-size" is >= ${ MAX_GLYPH_ICON_SIZE }. Reduce your "text-size".`); + } + } + bucket.addSymbols(bucket.text, glyphQuads, textSizeData, textOffset, textAlongLine, feature, writingMode, anchor, lineArray.lineStartIndex, lineArray.lineLength, placedIconIndex, canonical); + for (const placementType of placementTypes) { + placedTextSymbolIndices[placementType] = bucket.text.placedSymbolArray.length - 1; + } + return glyphQuads.length * 4; +} +function getDefaultHorizontalShaping(horizontalShaping) { + for (const justification in horizontalShaping) { + return horizontalShaping[justification]; + } + return null; +} +function evaluateBoxCollisionFeature(collisionBoxArray, anchor, featureIndex, sourceLayerIndex, bucketIndex, shaped, boxScale, padding, rotate) { + let y1 = shaped.top; + let y2 = shaped.bottom; + let x1 = shaped.left; + let x2 = shaped.right; + const collisionPadding = shaped.collisionPadding; + if (collisionPadding) { + x1 -= collisionPadding[0]; + y1 -= collisionPadding[1]; + x2 += collisionPadding[2]; + y2 += collisionPadding[3]; + } + if (rotate) { + const tl = new pointGeometry(x1, y1); + const tr = new pointGeometry(x2, y1); + const bl = new pointGeometry(x1, y2); + const br = new pointGeometry(x2, y2); + const rotateRadians = degToRad(rotate); + tl._rotate(rotateRadians); + tr._rotate(rotateRadians); + bl._rotate(rotateRadians); + br._rotate(rotateRadians); + x1 = Math.min(tl.x, tr.x, bl.x, br.x); + x2 = Math.max(tl.x, tr.x, bl.x, br.x); + y1 = Math.min(tl.y, tr.y, bl.y, br.y); + y2 = Math.max(tl.y, tr.y, bl.y, br.y); + } + collisionBoxArray.emplaceBack(anchor.x, anchor.y, x1, y1, x2, y2, padding, featureIndex, sourceLayerIndex, bucketIndex); + return collisionBoxArray.length - 1; +} +function evaluateCircleCollisionFeature(shaped) { + if (shaped.collisionPadding) { + shaped.top -= shaped.collisionPadding[1]; + shaped.bottom += shaped.collisionPadding[3]; + } + const height = shaped.bottom - shaped.top; + return height > 0 ? Math.max(10, height) : null; +} +function addSymbol(bucket, anchor, line, shapedTextOrientations, shapedIcon, imageMap, verticallyShapedIcon, layer, collisionBoxArray, featureIndex, sourceLayerIndex, bucketIndex, textBoxScale, textPadding, textAlongLine, textOffset, iconBoxScale, iconPadding, iconAlongLine, iconOffset, feature, sizes, isSDFIcon, canonical, layoutTextSize) { + const lineArray = bucket.addToLineVertexArray(anchor, line); + let textBoxIndex, iconBoxIndex, verticalTextBoxIndex, verticalIconBoxIndex; + let textCircle, verticalTextCircle, verticalIconCircle; + let numIconVertices = 0; + let numVerticalIconVertices = 0; + let numHorizontalGlyphVertices = 0; + let numVerticalGlyphVertices = 0; + let placedIconSymbolIndex = -1; + let verticalPlacedIconSymbolIndex = -1; + const placedTextSymbolIndices = {}; + let key = murmurhashJs(''); + let textOffset0 = 0; + let textOffset1 = 0; + if (layer._unevaluatedLayout.getValue('text-radial-offset') === undefined) { + [textOffset0, textOffset1] = layer.layout.get('text-offset').evaluate(feature, {}, canonical).map(t => t * ONE_EM); + } else { + textOffset0 = layer.layout.get('text-radial-offset').evaluate(feature, {}, canonical) * ONE_EM; + textOffset1 = INVALID_TEXT_OFFSET; + } + if (bucket.allowVerticalPlacement && shapedTextOrientations.vertical) { + const verticalShaping = shapedTextOrientations.vertical; + if (textAlongLine) { + verticalTextCircle = evaluateCircleCollisionFeature(verticalShaping); + if (verticallyShapedIcon) { + verticalIconCircle = evaluateCircleCollisionFeature(verticallyShapedIcon); + } + } else { + const textRotation = layer.layout.get('text-rotate').evaluate(feature, {}, canonical); + const verticalTextRotation = textRotation + 90; + verticalTextBoxIndex = evaluateBoxCollisionFeature(collisionBoxArray, anchor, featureIndex, sourceLayerIndex, bucketIndex, verticalShaping, textBoxScale, textPadding, verticalTextRotation); + if (verticallyShapedIcon) { + verticalIconBoxIndex = evaluateBoxCollisionFeature(collisionBoxArray, anchor, featureIndex, sourceLayerIndex, bucketIndex, verticallyShapedIcon, iconBoxScale, iconPadding, verticalTextRotation); + } + } + } + if (shapedIcon) { + const iconRotate = layer.layout.get('icon-rotate').evaluate(feature, {}, canonical); + const hasIconTextFit = layer.layout.get('icon-text-fit') !== 'none'; + const iconQuads = getIconQuads(shapedIcon, iconRotate, isSDFIcon, hasIconTextFit); + const verticalIconQuads = verticallyShapedIcon ? getIconQuads(verticallyShapedIcon, iconRotate, isSDFIcon, hasIconTextFit) : undefined; + iconBoxIndex = evaluateBoxCollisionFeature(collisionBoxArray, anchor, featureIndex, sourceLayerIndex, bucketIndex, shapedIcon, iconBoxScale, iconPadding, iconRotate); + numIconVertices = iconQuads.length * 4; + const sizeData = bucket.iconSizeData; + let iconSizeData = null; + if (sizeData.kind === 'source') { + iconSizeData = [SIZE_PACK_FACTOR * layer.layout.get('icon-size').evaluate(feature, {}, canonical)]; + if (iconSizeData[0] > MAX_PACKED_SIZE) { + warnOnce(`${ bucket.layerIds[0] }: Value for "icon-size" is >= ${ MAX_GLYPH_ICON_SIZE }. Reduce your "icon-size".`); + } + } else if (sizeData.kind === 'composite') { + iconSizeData = [ + SIZE_PACK_FACTOR * sizes.compositeIconSizes[0].evaluate(feature, {}, canonical), + SIZE_PACK_FACTOR * sizes.compositeIconSizes[1].evaluate(feature, {}, canonical) + ]; + if (iconSizeData[0] > MAX_PACKED_SIZE || iconSizeData[1] > MAX_PACKED_SIZE) { + warnOnce(`${ bucket.layerIds[0] }: Value for "icon-size" is >= ${ MAX_GLYPH_ICON_SIZE }. Reduce your "icon-size".`); + } + } + bucket.addSymbols(bucket.icon, iconQuads, iconSizeData, iconOffset, iconAlongLine, feature, false, anchor, lineArray.lineStartIndex, lineArray.lineLength, -1, canonical); + placedIconSymbolIndex = bucket.icon.placedSymbolArray.length - 1; + if (verticalIconQuads) { + numVerticalIconVertices = verticalIconQuads.length * 4; + bucket.addSymbols(bucket.icon, verticalIconQuads, iconSizeData, iconOffset, iconAlongLine, feature, WritingMode.vertical, anchor, lineArray.lineStartIndex, lineArray.lineLength, -1, canonical); + verticalPlacedIconSymbolIndex = bucket.icon.placedSymbolArray.length - 1; + } + } + for (const justification in shapedTextOrientations.horizontal) { + const shaping = shapedTextOrientations.horizontal[justification]; + if (!textBoxIndex) { + key = murmurhashJs(shaping.text); + if (textAlongLine) { + textCircle = evaluateCircleCollisionFeature(shaping); + } else { + const textRotate = layer.layout.get('text-rotate').evaluate(feature, {}, canonical); + textBoxIndex = evaluateBoxCollisionFeature(collisionBoxArray, anchor, featureIndex, sourceLayerIndex, bucketIndex, shaping, textBoxScale, textPadding, textRotate); + } + } + const singleLine = shaping.positionedLines.length === 1; + numHorizontalGlyphVertices += addTextVertices(bucket, anchor, shaping, imageMap, layer, textAlongLine, feature, textOffset, lineArray, shapedTextOrientations.vertical ? WritingMode.horizontal : WritingMode.horizontalOnly, singleLine ? Object.keys(shapedTextOrientations.horizontal) : [justification], placedTextSymbolIndices, placedIconSymbolIndex, sizes, canonical); + if (singleLine) { + break; + } + } + if (shapedTextOrientations.vertical) { + numVerticalGlyphVertices += addTextVertices(bucket, anchor, shapedTextOrientations.vertical, imageMap, layer, textAlongLine, feature, textOffset, lineArray, WritingMode.vertical, ['vertical'], placedTextSymbolIndices, verticalPlacedIconSymbolIndex, sizes, canonical); + } + let collisionCircleDiameter = -1; + const getCollisionCircleHeight = (diameter, prevHeight) => { + return diameter ? Math.max(diameter, prevHeight) : prevHeight; + }; + collisionCircleDiameter = getCollisionCircleHeight(textCircle, collisionCircleDiameter); + collisionCircleDiameter = getCollisionCircleHeight(verticalTextCircle, collisionCircleDiameter); + collisionCircleDiameter = getCollisionCircleHeight(verticalIconCircle, collisionCircleDiameter); + const useRuntimeCollisionCircles = collisionCircleDiameter > -1 ? 1 : 0; + if (useRuntimeCollisionCircles) + collisionCircleDiameter *= layoutTextSize / ONE_EM; + if (bucket.glyphOffsetArray.length >= SymbolBucket.MAX_GLYPHS) + warnOnce('Too many glyphs being rendered in a tile. See https://github.com/mapbox/mapbox-gl-js/issues/2907'); + if (feature.sortKey !== undefined) { + bucket.addToSortKeyRanges(bucket.symbolInstances.length, feature.sortKey); + } + bucket.symbolInstances.emplaceBack(anchor.x, anchor.y, placedTextSymbolIndices.right >= 0 ? placedTextSymbolIndices.right : -1, placedTextSymbolIndices.center >= 0 ? placedTextSymbolIndices.center : -1, placedTextSymbolIndices.left >= 0 ? placedTextSymbolIndices.left : -1, placedTextSymbolIndices.vertical || -1, placedIconSymbolIndex, verticalPlacedIconSymbolIndex, key, textBoxIndex !== undefined ? textBoxIndex : bucket.collisionBoxArray.length, textBoxIndex !== undefined ? textBoxIndex + 1 : bucket.collisionBoxArray.length, verticalTextBoxIndex !== undefined ? verticalTextBoxIndex : bucket.collisionBoxArray.length, verticalTextBoxIndex !== undefined ? verticalTextBoxIndex + 1 : bucket.collisionBoxArray.length, iconBoxIndex !== undefined ? iconBoxIndex : bucket.collisionBoxArray.length, iconBoxIndex !== undefined ? iconBoxIndex + 1 : bucket.collisionBoxArray.length, verticalIconBoxIndex ? verticalIconBoxIndex : bucket.collisionBoxArray.length, verticalIconBoxIndex ? verticalIconBoxIndex + 1 : bucket.collisionBoxArray.length, featureIndex, numHorizontalGlyphVertices, numVerticalGlyphVertices, numIconVertices, numVerticalIconVertices, useRuntimeCollisionCircles, 0, textBoxScale, textOffset0, textOffset1, collisionCircleDiameter); +} +function anchorIsTooClose(bucket, text, repeatDistance, anchor) { + const compareText = bucket.compareText; + if (!(text in compareText)) { + compareText[text] = []; + } else { + const otherAnchors = compareText[text]; + for (let k = otherAnchors.length - 1; k >= 0; k--) { + if (anchor.dist(otherAnchors[k]) < repeatDistance) { + return true; + } + } + } + compareText[text].push(anchor); + return false; +} + +const vectorTileFeatureTypes$2 = vectorTile.VectorTileFeature.types; +const shaderOpacityAttributes = [{ + name: 'a_fade_opacity', + components: 1, + type: 'Uint8', + offset: 0 + }]; +function addVertex$1(array, anchorX, anchorY, ox, oy, tx, ty, sizeVertex, isSDF, pixelOffsetX, pixelOffsetY, minFontScaleX, minFontScaleY) { + const aSizeX = sizeVertex ? Math.min(MAX_PACKED_SIZE, Math.round(sizeVertex[0])) : 0; + const aSizeY = sizeVertex ? Math.min(MAX_PACKED_SIZE, Math.round(sizeVertex[1])) : 0; + array.emplaceBack(anchorX, anchorY, Math.round(ox * 32), Math.round(oy * 32), tx, ty, (aSizeX << 1) + (isSDF ? 1 : 0), aSizeY, pixelOffsetX * 16, pixelOffsetY * 16, minFontScaleX * 256, minFontScaleY * 256); +} +function addDynamicAttributes(dynamicLayoutVertexArray, p, angle) { + dynamicLayoutVertexArray.emplaceBack(p.x, p.y, angle); + dynamicLayoutVertexArray.emplaceBack(p.x, p.y, angle); + dynamicLayoutVertexArray.emplaceBack(p.x, p.y, angle); + dynamicLayoutVertexArray.emplaceBack(p.x, p.y, angle); +} +function containsRTLText(formattedText) { + for (const section of formattedText.sections) { + if (stringContainsRTLText(section.text)) { + return true; + } + } + return false; +} +class SymbolBuffers { + constructor(programConfigurations) { + this.layoutVertexArray = new StructArrayLayout4i4ui4i24(); + this.indexArray = new StructArrayLayout3ui6(); + this.programConfigurations = programConfigurations; + this.segments = new SegmentVector(); + this.dynamicLayoutVertexArray = new StructArrayLayout3f12(); + this.opacityVertexArray = new StructArrayLayout1ul4(); + this.placedSymbolArray = new PlacedSymbolArray(); + } + isEmpty() { + return this.layoutVertexArray.length === 0 && this.indexArray.length === 0 && this.dynamicLayoutVertexArray.length === 0 && this.opacityVertexArray.length === 0; + } + upload(context, dynamicIndexBuffer, upload, update) { + if (this.isEmpty()) { + return; + } + if (upload) { + this.layoutVertexBuffer = context.createVertexBuffer(this.layoutVertexArray, symbolLayoutAttributes.members); + this.indexBuffer = context.createIndexBuffer(this.indexArray, dynamicIndexBuffer); + this.dynamicLayoutVertexBuffer = context.createVertexBuffer(this.dynamicLayoutVertexArray, dynamicLayoutAttributes.members, true); + this.opacityVertexBuffer = context.createVertexBuffer(this.opacityVertexArray, shaderOpacityAttributes, true); + this.opacityVertexBuffer.itemSize = 1; + } + if (upload || update) { + this.programConfigurations.upload(context); + } + } + destroy() { + if (!this.layoutVertexBuffer) + return; + this.layoutVertexBuffer.destroy(); + this.indexBuffer.destroy(); + this.programConfigurations.destroy(); + this.segments.destroy(); + this.dynamicLayoutVertexBuffer.destroy(); + this.opacityVertexBuffer.destroy(); + } +} +register('SymbolBuffers', SymbolBuffers); +class CollisionBuffers { + constructor(LayoutArray, layoutAttributes, IndexArray) { + this.layoutVertexArray = new LayoutArray(); + this.layoutAttributes = layoutAttributes; + this.indexArray = new IndexArray(); + this.segments = new SegmentVector(); + this.collisionVertexArray = new StructArrayLayout2ub2f12(); + this.collisionVertexArrayExt = new StructArrayLayout3f12(); + } + upload(context) { + this.layoutVertexBuffer = context.createVertexBuffer(this.layoutVertexArray, this.layoutAttributes); + this.indexBuffer = context.createIndexBuffer(this.indexArray); + this.collisionVertexBuffer = context.createVertexBuffer(this.collisionVertexArray, collisionVertexAttributes.members, true); + this.collisionVertexBufferExt = context.createVertexBuffer(this.collisionVertexArrayExt, collisionVertexAttributesExt.members, true); + } + destroy() { + if (!this.layoutVertexBuffer) + return; + this.layoutVertexBuffer.destroy(); + this.indexBuffer.destroy(); + this.segments.destroy(); + this.collisionVertexBuffer.destroy(); + this.collisionVertexBufferExt.destroy(); + } +} +register('CollisionBuffers', CollisionBuffers); +class SymbolBucket { + constructor(options) { + this.collisionBoxArray = options.collisionBoxArray; + this.zoom = options.zoom; + this.overscaling = options.overscaling; + this.layers = options.layers; + this.layerIds = this.layers.map(layer => layer.id); + this.index = options.index; + this.pixelRatio = options.pixelRatio; + this.sourceLayerIndex = options.sourceLayerIndex; + this.hasPattern = false; + this.hasRTLText = false; + this.sortKeyRanges = []; + this.collisionCircleArray = []; + this.placementInvProjMatrix = identity([]); + this.placementViewportMatrix = identity([]); + const layer = this.layers[0]; + const unevaluatedLayoutValues = layer._unevaluatedLayout._values; + this.textSizeData = getSizeData(this.zoom, unevaluatedLayoutValues['text-size']); + this.iconSizeData = getSizeData(this.zoom, unevaluatedLayoutValues['icon-size']); + const layout = this.layers[0].layout; + const sortKey = layout.get('symbol-sort-key'); + const zOrder = layout.get('symbol-z-order'); + this.canOverlap = layout.get('text-allow-overlap') || layout.get('icon-allow-overlap') || layout.get('text-ignore-placement') || layout.get('icon-ignore-placement'); + this.sortFeaturesByKey = zOrder !== 'viewport-y' && sortKey.constantOr(1) !== undefined; + const zOrderByViewportY = zOrder === 'viewport-y' || zOrder === 'auto' && !this.sortFeaturesByKey; + this.sortFeaturesByY = zOrderByViewportY && this.canOverlap; + if (layout.get('symbol-placement') === 'point') { + this.writingModes = layout.get('text-writing-mode').map(wm => WritingMode[wm]); + } + this.stateDependentLayerIds = this.layers.filter(l => l.isStateDependent()).map(l => l.id); + this.sourceID = options.sourceID; + } + createArrays() { + this.text = new SymbolBuffers(new ProgramConfigurationSet(this.layers, this.zoom, property => /^text/.test(property))); + this.icon = new SymbolBuffers(new ProgramConfigurationSet(this.layers, this.zoom, property => /^icon/.test(property))); + this.glyphOffsetArray = new GlyphOffsetArray(); + this.lineVertexArray = new SymbolLineVertexArray(); + this.symbolInstances = new SymbolInstanceArray(); + } + calculateGlyphDependencies(text, stack, textAlongLine, allowVerticalPlacement, doesAllowVerticalWritingMode) { + for (let i = 0; i < text.length; i++) { + stack[text.charCodeAt(i)] = true; + if ((textAlongLine || allowVerticalPlacement) && doesAllowVerticalWritingMode) { + const verticalChar = verticalizedCharacterMap[text.charAt(i)]; + if (verticalChar) { + stack[verticalChar.charCodeAt(0)] = true; + } + } + } + } + populate(features, options, canonical) { + const layer = this.layers[0]; + const layout = layer.layout; + const textFont = layout.get('text-font'); + const textField = layout.get('text-field'); + const iconImage = layout.get('icon-image'); + const hasText = (textField.value.kind !== 'constant' || textField.value.value instanceof Formatted && !textField.value.value.isEmpty() || textField.value.value.toString().length > 0) && (textFont.value.kind !== 'constant' || textFont.value.value.length > 0); + const hasIcon = iconImage.value.kind !== 'constant' || !!iconImage.value.value || Object.keys(iconImage.parameters).length > 0; + const symbolSortKey = layout.get('symbol-sort-key'); + this.features = []; + if (!hasText && !hasIcon) { + return; + } + const icons = options.iconDependencies; + const stacks = options.glyphDependencies; + const availableImages = options.availableImages; + const globalProperties = new EvaluationParameters(this.zoom); + for (const {feature, id, index, sourceLayerIndex} of features) { + const needGeometry = layer._featureFilter.needGeometry; + const evaluationFeature = toEvaluationFeature(feature, needGeometry); + if (!layer._featureFilter.filter(globalProperties, evaluationFeature, canonical)) { + continue; + } + if (!needGeometry) + evaluationFeature.geometry = loadGeometry(feature); + let text; + if (hasText) { + const resolvedTokens = layer.getValueAndResolveTokens('text-field', evaluationFeature, canonical, availableImages); + const formattedText = Formatted.factory(resolvedTokens); + if (containsRTLText(formattedText)) { + this.hasRTLText = true; + } + if (!this.hasRTLText || getRTLTextPluginStatus() === 'unavailable' || this.hasRTLText && plugin.isParsed()) { + text = transformText$1(formattedText, layer, evaluationFeature); + } + } + let icon; + if (hasIcon) { + const resolvedTokens = layer.getValueAndResolveTokens('icon-image', evaluationFeature, canonical, availableImages); + if (resolvedTokens instanceof ResolvedImage) { + icon = resolvedTokens; + } else { + icon = ResolvedImage.fromString(resolvedTokens); + } + } + if (!text && !icon) { + continue; + } + const sortKey = this.sortFeaturesByKey ? symbolSortKey.evaluate(evaluationFeature, {}, canonical) : undefined; + const symbolFeature = { + id, + text, + icon, + index, + sourceLayerIndex, + geometry: evaluationFeature.geometry, + properties: feature.properties, + type: vectorTileFeatureTypes$2[feature.type], + sortKey + }; + this.features.push(symbolFeature); + if (icon) { + icons[icon.name] = true; + } + if (text) { + const fontStack = textFont.evaluate(evaluationFeature, {}, canonical).join(','); + const textAlongLine = layout.get('text-rotation-alignment') === 'map' && layout.get('symbol-placement') !== 'point'; + this.allowVerticalPlacement = this.writingModes && this.writingModes.indexOf(WritingMode.vertical) >= 0; + for (const section of text.sections) { + if (!section.image) { + const doesAllowVerticalWritingMode = allowsVerticalWritingMode(text.toString()); + const sectionFont = section.fontStack || fontStack; + const sectionStack = stacks[sectionFont] = stacks[sectionFont] || {}; + this.calculateGlyphDependencies(section.text, sectionStack, textAlongLine, this.allowVerticalPlacement, doesAllowVerticalWritingMode); + } else { + icons[section.image.name] = true; + } + } + } + } + if (layout.get('symbol-placement') === 'line') { + this.features = mergeLines(this.features); + } + if (this.sortFeaturesByKey) { + this.features.sort((a, b) => { + return a.sortKey - b.sortKey; + }); + } + } + update(states, vtLayer, imagePositions) { + if (!this.stateDependentLayers.length) + return; + this.text.programConfigurations.updatePaintArrays(states, vtLayer, this.layers, imagePositions); + this.icon.programConfigurations.updatePaintArrays(states, vtLayer, this.layers, imagePositions); + } + isEmpty() { + return this.symbolInstances.length === 0 && !this.hasRTLText; + } + uploadPending() { + return !this.uploaded || this.text.programConfigurations.needsUpload || this.icon.programConfigurations.needsUpload; + } + upload(context) { + if (!this.uploaded && this.hasDebugData()) { + this.textCollisionBox.upload(context); + this.iconCollisionBox.upload(context); + } + this.text.upload(context, this.sortFeaturesByY, !this.uploaded, this.text.programConfigurations.needsUpload); + this.icon.upload(context, this.sortFeaturesByY, !this.uploaded, this.icon.programConfigurations.needsUpload); + this.uploaded = true; + } + destroyDebugData() { + this.textCollisionBox.destroy(); + this.iconCollisionBox.destroy(); + } + destroy() { + this.text.destroy(); + this.icon.destroy(); + if (this.hasDebugData()) { + this.destroyDebugData(); + } + } + addToLineVertexArray(anchor, line) { + const lineStartIndex = this.lineVertexArray.length; + if (anchor.segment !== undefined) { + let sumForwardLength = anchor.dist(line[anchor.segment + 1]); + let sumBackwardLength = anchor.dist(line[anchor.segment]); + const vertices = {}; + for (let i = anchor.segment + 1; i < line.length; i++) { + vertices[i] = { + x: line[i].x, + y: line[i].y, + tileUnitDistanceFromAnchor: sumForwardLength + }; + if (i < line.length - 1) { + sumForwardLength += line[i + 1].dist(line[i]); + } + } + for (let i = anchor.segment || 0; i >= 0; i--) { + vertices[i] = { + x: line[i].x, + y: line[i].y, + tileUnitDistanceFromAnchor: sumBackwardLength + }; + if (i > 0) { + sumBackwardLength += line[i - 1].dist(line[i]); + } + } + for (let i = 0; i < line.length; i++) { + const vertex = vertices[i]; + this.lineVertexArray.emplaceBack(vertex.x, vertex.y, vertex.tileUnitDistanceFromAnchor); + } + } + return { + lineStartIndex, + lineLength: this.lineVertexArray.length - lineStartIndex + }; + } + addSymbols(arrays, quads, sizeVertex, lineOffset, alongLine, feature, writingMode, labelAnchor, lineStartIndex, lineLength, associatedIconIndex, canonical) { + const indexArray = arrays.indexArray; + const layoutVertexArray = arrays.layoutVertexArray; + const segment = arrays.segments.prepareSegment(4 * quads.length, layoutVertexArray, indexArray, this.canOverlap ? feature.sortKey : undefined); + const glyphOffsetArrayStart = this.glyphOffsetArray.length; + const vertexStartIndex = segment.vertexLength; + const angle = this.allowVerticalPlacement && writingMode === WritingMode.vertical ? Math.PI / 2 : 0; + const sections = feature.text && feature.text.sections; + for (let i = 0; i < quads.length; i++) { + const {tl, tr, bl, br, tex, pixelOffsetTL, pixelOffsetBR, minFontScaleX, minFontScaleY, glyphOffset, isSDF, sectionIndex} = quads[i]; + const index = segment.vertexLength; + const y = glyphOffset[1]; + addVertex$1(layoutVertexArray, labelAnchor.x, labelAnchor.y, tl.x, y + tl.y, tex.x, tex.y, sizeVertex, isSDF, pixelOffsetTL.x, pixelOffsetTL.y, minFontScaleX, minFontScaleY); + addVertex$1(layoutVertexArray, labelAnchor.x, labelAnchor.y, tr.x, y + tr.y, tex.x + tex.w, tex.y, sizeVertex, isSDF, pixelOffsetBR.x, pixelOffsetTL.y, minFontScaleX, minFontScaleY); + addVertex$1(layoutVertexArray, labelAnchor.x, labelAnchor.y, bl.x, y + bl.y, tex.x, tex.y + tex.h, sizeVertex, isSDF, pixelOffsetTL.x, pixelOffsetBR.y, minFontScaleX, minFontScaleY); + addVertex$1(layoutVertexArray, labelAnchor.x, labelAnchor.y, br.x, y + br.y, tex.x + tex.w, tex.y + tex.h, sizeVertex, isSDF, pixelOffsetBR.x, pixelOffsetBR.y, minFontScaleX, minFontScaleY); + addDynamicAttributes(arrays.dynamicLayoutVertexArray, labelAnchor, angle); + indexArray.emplaceBack(index, index + 1, index + 2); + indexArray.emplaceBack(index + 1, index + 2, index + 3); + segment.vertexLength += 4; + segment.primitiveLength += 2; + this.glyphOffsetArray.emplaceBack(glyphOffset[0]); + if (i === quads.length - 1 || sectionIndex !== quads[i + 1].sectionIndex) { + arrays.programConfigurations.populatePaintArrays(layoutVertexArray.length, feature, feature.index, {}, canonical, sections && sections[sectionIndex]); + } + } + arrays.placedSymbolArray.emplaceBack(labelAnchor.x, labelAnchor.y, glyphOffsetArrayStart, this.glyphOffsetArray.length - glyphOffsetArrayStart, vertexStartIndex, lineStartIndex, lineLength, labelAnchor.segment, sizeVertex ? sizeVertex[0] : 0, sizeVertex ? sizeVertex[1] : 0, lineOffset[0], lineOffset[1], writingMode, 0, false, 0, associatedIconIndex); + } + _commitLayoutVertex(array, point, anchorX, anchorY, extrude) { + array.emplaceBack(point.x, point.y, anchorX, anchorY, Math.round(extrude.x), Math.round(extrude.y)); + } + _addCollisionDebugVertices(box, scale, arrays, boxAnchorPoint, symbolInstance) { + const segment = arrays.segments.prepareSegment(4, arrays.layoutVertexArray, arrays.indexArray); + const index = segment.vertexLength; + const anchorX = symbolInstance.anchorX; + const anchorY = symbolInstance.anchorY; + for (let i = 0; i < 4; i++) { + arrays.collisionVertexArray.emplaceBack(0, 0, 0, 0); + } + arrays.collisionVertexArrayExt.emplaceBack(scale, -box.padding, -box.padding); + arrays.collisionVertexArrayExt.emplaceBack(scale, box.padding, -box.padding); + arrays.collisionVertexArrayExt.emplaceBack(scale, box.padding, box.padding); + arrays.collisionVertexArrayExt.emplaceBack(scale, -box.padding, box.padding); + this._commitLayoutVertex(arrays.layoutVertexArray, boxAnchorPoint, anchorX, anchorY, new pointGeometry(box.x1, box.y1)); + this._commitLayoutVertex(arrays.layoutVertexArray, boxAnchorPoint, anchorX, anchorY, new pointGeometry(box.x2, box.y1)); + this._commitLayoutVertex(arrays.layoutVertexArray, boxAnchorPoint, anchorX, anchorY, new pointGeometry(box.x2, box.y2)); + this._commitLayoutVertex(arrays.layoutVertexArray, boxAnchorPoint, anchorX, anchorY, new pointGeometry(box.x1, box.y2)); + segment.vertexLength += 4; + const indexArray = arrays.indexArray; + indexArray.emplaceBack(index, index + 1); + indexArray.emplaceBack(index + 1, index + 2); + indexArray.emplaceBack(index + 2, index + 3); + indexArray.emplaceBack(index + 3, index); + segment.primitiveLength += 4; + } + _addTextDebugCollisionBoxes(size, zoom, collisionBoxArray, startIndex, endIndex, instance) { + for (let b = startIndex; b < endIndex; b++) { + const box = collisionBoxArray.get(b); + const scale = this.getSymbolInstanceTextSize(size, instance, zoom, b); + this._addCollisionDebugVertices(box, scale, this.textCollisionBox, box.anchorPoint, instance); + } + } + _addIconDebugCollisionBoxes(size, zoom, collisionBoxArray, startIndex, endIndex, instance) { + for (let b = startIndex; b < endIndex; b++) { + const box = collisionBoxArray.get(b); + const scale = this.getSymbolInstanceIconSize(size, zoom, b); + this._addCollisionDebugVertices(box, scale, this.iconCollisionBox, box.anchorPoint, instance); + } + } + generateCollisionDebugBuffers(zoom, collisionBoxArray) { + if (this.hasDebugData()) { + this.destroyDebugData(); + } + this.textCollisionBox = new CollisionBuffers(StructArrayLayout2i2i2i12, collisionBoxLayout.members, StructArrayLayout2ui4); + this.iconCollisionBox = new CollisionBuffers(StructArrayLayout2i2i2i12, collisionBoxLayout.members, StructArrayLayout2ui4); + const iconSize = evaluateSizeForZoom(this.iconSizeData, zoom); + const textSize = evaluateSizeForZoom(this.textSizeData, zoom); + for (let i = 0; i < this.symbolInstances.length; i++) { + const symbolInstance = this.symbolInstances.get(i); + this._addTextDebugCollisionBoxes(textSize, zoom, collisionBoxArray, symbolInstance.textBoxStartIndex, symbolInstance.textBoxEndIndex, symbolInstance); + this._addTextDebugCollisionBoxes(textSize, zoom, collisionBoxArray, symbolInstance.verticalTextBoxStartIndex, symbolInstance.verticalTextBoxEndIndex, symbolInstance); + this._addIconDebugCollisionBoxes(iconSize, zoom, collisionBoxArray, symbolInstance.iconBoxStartIndex, symbolInstance.iconBoxEndIndex, symbolInstance); + this._addIconDebugCollisionBoxes(iconSize, zoom, collisionBoxArray, symbolInstance.verticalIconBoxStartIndex, symbolInstance.verticalIconBoxEndIndex, symbolInstance); + } + } + getSymbolInstanceTextSize(textSize, instance, zoom, boxIndex) { + const symbolIndex = instance.rightJustifiedTextSymbolIndex >= 0 ? instance.rightJustifiedTextSymbolIndex : instance.centerJustifiedTextSymbolIndex >= 0 ? instance.centerJustifiedTextSymbolIndex : instance.leftJustifiedTextSymbolIndex >= 0 ? instance.leftJustifiedTextSymbolIndex : instance.verticalPlacedTextSymbolIndex >= 0 ? instance.verticalPlacedTextSymbolIndex : boxIndex; + const symbol = this.text.placedSymbolArray.get(symbolIndex); + const featureSize = evaluateSizeForFeature(this.textSizeData, textSize, symbol) / ONE_EM; + return this.tilePixelRatio * featureSize; + } + getSymbolInstanceIconSize(iconSize, zoom, index) { + const symbol = this.icon.placedSymbolArray.get(index); + const featureSize = evaluateSizeForFeature(this.iconSizeData, iconSize, symbol); + return this.tilePixelRatio * featureSize; + } + _commitDebugCollisionVertexUpdate(array, scale, padding) { + array.emplaceBack(scale, -padding, -padding); + array.emplaceBack(scale, padding, -padding); + array.emplaceBack(scale, padding, padding); + array.emplaceBack(scale, -padding, padding); + } + _updateTextDebugCollisionBoxes(size, zoom, collisionBoxArray, startIndex, endIndex, instance) { + for (let b = startIndex; b < endIndex; b++) { + const box = collisionBoxArray.get(b); + const scale = this.getSymbolInstanceTextSize(size, instance, zoom, b); + const array = this.textCollisionBox.collisionVertexArrayExt; + this._commitDebugCollisionVertexUpdate(array, scale, box.padding); + } + } + _updateIconDebugCollisionBoxes(size, zoom, collisionBoxArray, startIndex, endIndex) { + for (let b = startIndex; b < endIndex; b++) { + const box = collisionBoxArray.get(b); + const scale = this.getSymbolInstanceIconSize(size, zoom, b); + const array = this.iconCollisionBox.collisionVertexArrayExt; + this._commitDebugCollisionVertexUpdate(array, scale, box.padding); + } + } + updateCollisionDebugBuffers(zoom, collisionBoxArray) { + if (!this.hasDebugData()) { + return; + } + if (this.hasTextCollisionBoxData()) + this.textCollisionBox.collisionVertexArrayExt.clear(); + if (this.hasIconCollisionBoxData()) + this.iconCollisionBox.collisionVertexArrayExt.clear(); + const iconSize = evaluateSizeForZoom(this.iconSizeData, zoom); + const textSize = evaluateSizeForZoom(this.textSizeData, zoom); + for (let i = 0; i < this.symbolInstances.length; i++) { + const symbolInstance = this.symbolInstances.get(i); + this._updateTextDebugCollisionBoxes(textSize, zoom, collisionBoxArray, symbolInstance.textBoxStartIndex, symbolInstance.textBoxEndIndex, symbolInstance); + this._updateTextDebugCollisionBoxes(textSize, zoom, collisionBoxArray, symbolInstance.verticalTextBoxStartIndex, symbolInstance.verticalTextBoxEndIndex, symbolInstance); + this._updateIconDebugCollisionBoxes(iconSize, zoom, collisionBoxArray, symbolInstance.iconBoxStartIndex, symbolInstance.iconBoxEndIndex); + this._updateIconDebugCollisionBoxes(iconSize, zoom, collisionBoxArray, symbolInstance.verticalIconBoxStartIndex, symbolInstance.verticalIconBoxEndIndex); + } + if (this.hasTextCollisionBoxData() && this.textCollisionBox.collisionVertexBufferExt) { + this.textCollisionBox.collisionVertexBufferExt.updateData(this.textCollisionBox.collisionVertexArrayExt); + } + if (this.hasIconCollisionBoxData() && this.iconCollisionBox.collisionVertexBufferExt) { + this.iconCollisionBox.collisionVertexBufferExt.updateData(this.iconCollisionBox.collisionVertexArrayExt); + } + } + _deserializeCollisionBoxesForSymbol(collisionBoxArray, textStartIndex, textEndIndex, verticalTextStartIndex, verticalTextEndIndex, iconStartIndex, iconEndIndex, verticalIconStartIndex, verticalIconEndIndex) { + const collisionArrays = {}; + for (let k = textStartIndex; k < textEndIndex; k++) { + const box = collisionBoxArray.get(k); + collisionArrays.textBox = { + x1: box.x1, + y1: box.y1, + x2: box.x2, + y2: box.y2, + padding: box.padding, + anchorPointX: box.anchorPointX, + anchorPointY: box.anchorPointY + }; + collisionArrays.textFeatureIndex = box.featureIndex; + break; + } + for (let k = verticalTextStartIndex; k < verticalTextEndIndex; k++) { + const box = collisionBoxArray.get(k); + collisionArrays.verticalTextBox = { + x1: box.x1, + y1: box.y1, + x2: box.x2, + y2: box.y2, + padding: box.padding, + anchorPointX: box.anchorPointX, + anchorPointY: box.anchorPointY + }; + collisionArrays.verticalTextFeatureIndex = box.featureIndex; + break; + } + for (let k = iconStartIndex; k < iconEndIndex; k++) { + const box = collisionBoxArray.get(k); + collisionArrays.iconBox = { + x1: box.x1, + y1: box.y1, + x2: box.x2, + y2: box.y2, + padding: box.padding, + anchorPointX: box.anchorPointX, + anchorPointY: box.anchorPointY + }; + collisionArrays.iconFeatureIndex = box.featureIndex; + break; + } + for (let k = verticalIconStartIndex; k < verticalIconEndIndex; k++) { + const box = collisionBoxArray.get(k); + collisionArrays.verticalIconBox = { + x1: box.x1, + y1: box.y1, + x2: box.x2, + y2: box.y2, + padding: box.padding, + anchorPointX: box.anchorPointX, + anchorPointY: box.anchorPointY + }; + collisionArrays.verticalIconFeatureIndex = box.featureIndex; + break; + } + return collisionArrays; + } + deserializeCollisionBoxes(collisionBoxArray) { + this.collisionArrays = []; + for (let i = 0; i < this.symbolInstances.length; i++) { + const symbolInstance = this.symbolInstances.get(i); + this.collisionArrays.push(this._deserializeCollisionBoxesForSymbol(collisionBoxArray, symbolInstance.textBoxStartIndex, symbolInstance.textBoxEndIndex, symbolInstance.verticalTextBoxStartIndex, symbolInstance.verticalTextBoxEndIndex, symbolInstance.iconBoxStartIndex, symbolInstance.iconBoxEndIndex, symbolInstance.verticalIconBoxStartIndex, symbolInstance.verticalIconBoxEndIndex)); + } + } + hasTextData() { + return this.text.segments.get().length > 0; + } + hasIconData() { + return this.icon.segments.get().length > 0; + } + hasDebugData() { + return this.textCollisionBox && this.iconCollisionBox; + } + hasTextCollisionBoxData() { + return this.hasDebugData() && this.textCollisionBox.segments.get().length > 0; + } + hasIconCollisionBoxData() { + return this.hasDebugData() && this.iconCollisionBox.segments.get().length > 0; + } + addIndicesForPlacedSymbol(iconOrText, placedSymbolIndex) { + const placedSymbol = iconOrText.placedSymbolArray.get(placedSymbolIndex); + const endIndex = placedSymbol.vertexStartIndex + placedSymbol.numGlyphs * 4; + for (let vertexIndex = placedSymbol.vertexStartIndex; vertexIndex < endIndex; vertexIndex += 4) { + iconOrText.indexArray.emplaceBack(vertexIndex, vertexIndex + 1, vertexIndex + 2); + iconOrText.indexArray.emplaceBack(vertexIndex + 1, vertexIndex + 2, vertexIndex + 3); + } + } + getSortedSymbolIndexes(angle) { + if (this.sortedAngle === angle && this.symbolInstanceIndexes !== undefined) { + return this.symbolInstanceIndexes; + } + const sin = Math.sin(angle); + const cos = Math.cos(angle); + const rotatedYs = []; + const featureIndexes = []; + const result = []; + for (let i = 0; i < this.symbolInstances.length; ++i) { + result.push(i); + const symbolInstance = this.symbolInstances.get(i); + rotatedYs.push(Math.round(sin * symbolInstance.anchorX + cos * symbolInstance.anchorY) | 0); + featureIndexes.push(symbolInstance.featureIndex); + } + result.sort((aIndex, bIndex) => { + return rotatedYs[aIndex] - rotatedYs[bIndex] || featureIndexes[bIndex] - featureIndexes[aIndex]; + }); + return result; + } + addToSortKeyRanges(symbolInstanceIndex, sortKey) { + const last = this.sortKeyRanges[this.sortKeyRanges.length - 1]; + if (last && last.sortKey === sortKey) { + last.symbolInstanceEnd = symbolInstanceIndex + 1; + } else { + this.sortKeyRanges.push({ + sortKey, + symbolInstanceStart: symbolInstanceIndex, + symbolInstanceEnd: symbolInstanceIndex + 1 + }); + } + } + sortFeatures(angle) { + if (!this.sortFeaturesByY) + return; + if (this.sortedAngle === angle) + return; + if (this.text.segments.get().length > 1 || this.icon.segments.get().length > 1) + return; + this.symbolInstanceIndexes = this.getSortedSymbolIndexes(angle); + this.sortedAngle = angle; + this.text.indexArray.clear(); + this.icon.indexArray.clear(); + this.featureSortOrder = []; + for (const i of this.symbolInstanceIndexes) { + const symbolInstance = this.symbolInstances.get(i); + this.featureSortOrder.push(symbolInstance.featureIndex); + [ + symbolInstance.rightJustifiedTextSymbolIndex, + symbolInstance.centerJustifiedTextSymbolIndex, + symbolInstance.leftJustifiedTextSymbolIndex + ].forEach((index, i, array) => { + if (index >= 0 && array.indexOf(index) === i) { + this.addIndicesForPlacedSymbol(this.text, index); + } + }); + if (symbolInstance.verticalPlacedTextSymbolIndex >= 0) { + this.addIndicesForPlacedSymbol(this.text, symbolInstance.verticalPlacedTextSymbolIndex); + } + if (symbolInstance.placedIconSymbolIndex >= 0) { + this.addIndicesForPlacedSymbol(this.icon, symbolInstance.placedIconSymbolIndex); + } + if (symbolInstance.verticalPlacedIconSymbolIndex >= 0) { + this.addIndicesForPlacedSymbol(this.icon, symbolInstance.verticalPlacedIconSymbolIndex); + } + } + if (this.text.indexBuffer) + this.text.indexBuffer.updateData(this.text.indexArray); + if (this.icon.indexBuffer) + this.icon.indexBuffer.updateData(this.icon.indexArray); + } +} +register('SymbolBucket', SymbolBucket, { + omit: [ + 'layers', + 'collisionBoxArray', + 'features', + 'compareText' + ] +}); +SymbolBucket.MAX_GLYPHS = 65535; +SymbolBucket.addDynamicAttributes = addDynamicAttributes; + +function resolveTokens(properties, text) { + return text.replace(/{([^{}]+)}/g, (match, key) => { + return key in properties ? String(properties[key]) : ''; + }); +} + +const layout$6 = new Properties({ + 'symbol-placement': new DataConstantProperty(spec['layout_symbol']['symbol-placement']), + 'symbol-spacing': new DataConstantProperty(spec['layout_symbol']['symbol-spacing']), + 'symbol-avoid-edges': new DataConstantProperty(spec['layout_symbol']['symbol-avoid-edges']), + 'symbol-sort-key': new DataDrivenProperty(spec['layout_symbol']['symbol-sort-key']), + 'symbol-z-order': new DataConstantProperty(spec['layout_symbol']['symbol-z-order']), + 'icon-allow-overlap': new DataConstantProperty(spec['layout_symbol']['icon-allow-overlap']), + 'icon-ignore-placement': new DataConstantProperty(spec['layout_symbol']['icon-ignore-placement']), + 'icon-optional': new DataConstantProperty(spec['layout_symbol']['icon-optional']), + 'icon-rotation-alignment': new DataConstantProperty(spec['layout_symbol']['icon-rotation-alignment']), + 'icon-size': new DataDrivenProperty(spec['layout_symbol']['icon-size']), + 'icon-text-fit': new DataConstantProperty(spec['layout_symbol']['icon-text-fit']), + 'icon-text-fit-padding': new DataConstantProperty(spec['layout_symbol']['icon-text-fit-padding']), + 'icon-image': new DataDrivenProperty(spec['layout_symbol']['icon-image']), + 'icon-rotate': new DataDrivenProperty(spec['layout_symbol']['icon-rotate']), + 'icon-padding': new DataConstantProperty(spec['layout_symbol']['icon-padding']), + 'icon-keep-upright': new DataConstantProperty(spec['layout_symbol']['icon-keep-upright']), + 'icon-offset': new DataDrivenProperty(spec['layout_symbol']['icon-offset']), + 'icon-anchor': new DataDrivenProperty(spec['layout_symbol']['icon-anchor']), + 'icon-pitch-alignment': new DataConstantProperty(spec['layout_symbol']['icon-pitch-alignment']), + 'text-pitch-alignment': new DataConstantProperty(spec['layout_symbol']['text-pitch-alignment']), + 'text-rotation-alignment': new DataConstantProperty(spec['layout_symbol']['text-rotation-alignment']), + 'text-field': new DataDrivenProperty(spec['layout_symbol']['text-field']), + 'text-font': new DataDrivenProperty(spec['layout_symbol']['text-font']), + 'text-size': new DataDrivenProperty(spec['layout_symbol']['text-size']), + 'text-max-width': new DataDrivenProperty(spec['layout_symbol']['text-max-width']), + 'text-line-height': new DataConstantProperty(spec['layout_symbol']['text-line-height']), + 'text-letter-spacing': new DataDrivenProperty(spec['layout_symbol']['text-letter-spacing']), + 'text-justify': new DataDrivenProperty(spec['layout_symbol']['text-justify']), + 'text-radial-offset': new DataDrivenProperty(spec['layout_symbol']['text-radial-offset']), + 'text-variable-anchor': new DataConstantProperty(spec['layout_symbol']['text-variable-anchor']), + 'text-anchor': new DataDrivenProperty(spec['layout_symbol']['text-anchor']), + 'text-max-angle': new DataConstantProperty(spec['layout_symbol']['text-max-angle']), + 'text-writing-mode': new DataConstantProperty(spec['layout_symbol']['text-writing-mode']), + 'text-rotate': new DataDrivenProperty(spec['layout_symbol']['text-rotate']), + 'text-padding': new DataConstantProperty(spec['layout_symbol']['text-padding']), + 'text-keep-upright': new DataConstantProperty(spec['layout_symbol']['text-keep-upright']), + 'text-transform': new DataDrivenProperty(spec['layout_symbol']['text-transform']), + 'text-offset': new DataDrivenProperty(spec['layout_symbol']['text-offset']), + 'text-allow-overlap': new DataConstantProperty(spec['layout_symbol']['text-allow-overlap']), + 'text-ignore-placement': new DataConstantProperty(spec['layout_symbol']['text-ignore-placement']), + 'text-optional': new DataConstantProperty(spec['layout_symbol']['text-optional']) +}); +const paint$7 = new Properties({ + 'icon-opacity': new DataDrivenProperty(spec['paint_symbol']['icon-opacity']), + 'icon-color': new DataDrivenProperty(spec['paint_symbol']['icon-color']), + 'icon-halo-color': new DataDrivenProperty(spec['paint_symbol']['icon-halo-color']), + 'icon-halo-width': new DataDrivenProperty(spec['paint_symbol']['icon-halo-width']), + 'icon-halo-blur': new DataDrivenProperty(spec['paint_symbol']['icon-halo-blur']), + 'icon-translate': new DataConstantProperty(spec['paint_symbol']['icon-translate']), + 'icon-translate-anchor': new DataConstantProperty(spec['paint_symbol']['icon-translate-anchor']), + 'text-opacity': new DataDrivenProperty(spec['paint_symbol']['text-opacity']), + 'text-color': new DataDrivenProperty(spec['paint_symbol']['text-color'], { + runtimeType: ColorType, + getOverride: o => o.textColor, + hasOverride: o => !!o.textColor + }), + 'text-halo-color': new DataDrivenProperty(spec['paint_symbol']['text-halo-color']), + 'text-halo-width': new DataDrivenProperty(spec['paint_symbol']['text-halo-width']), + 'text-halo-blur': new DataDrivenProperty(spec['paint_symbol']['text-halo-blur']), + 'text-translate': new DataConstantProperty(spec['paint_symbol']['text-translate']), + 'text-translate-anchor': new DataConstantProperty(spec['paint_symbol']['text-translate-anchor']) +}); +var properties$6 = { + paint: paint$7, + layout: layout$6 +}; + +class FormatSectionOverride { + constructor(defaultValue) { + this.type = defaultValue.property.overrides ? defaultValue.property.overrides.runtimeType : NullType; + this.defaultValue = defaultValue; + } + evaluate(ctx) { + if (ctx.formattedSection) { + const overrides = this.defaultValue.property.overrides; + if (overrides && overrides.hasOverride(ctx.formattedSection)) { + return overrides.getOverride(ctx.formattedSection); + } + } + if (ctx.feature && ctx.featureState) { + return this.defaultValue.evaluate(ctx.feature, ctx.featureState); + } + return this.defaultValue.property.specification.default; + } + eachChild(fn) { + if (!this.defaultValue.isConstant()) { + const expr = this.defaultValue.value; + fn(expr._styleExpression.expression); + } + } + outputDefined() { + return false; + } + serialize() { + return null; + } +} +register('FormatSectionOverride', FormatSectionOverride, { omit: ['defaultValue'] }); + +class SymbolStyleLayer extends StyleLayer { + constructor(layer) { + super(layer, properties$6); + } + recalculate(parameters, availableImages) { + super.recalculate(parameters, availableImages); + if (this.layout.get('icon-rotation-alignment') === 'auto') { + if (this.layout.get('symbol-placement') !== 'point') { + this.layout._values['icon-rotation-alignment'] = 'map'; + } else { + this.layout._values['icon-rotation-alignment'] = 'viewport'; + } + } + if (this.layout.get('text-rotation-alignment') === 'auto') { + if (this.layout.get('symbol-placement') !== 'point') { + this.layout._values['text-rotation-alignment'] = 'map'; + } else { + this.layout._values['text-rotation-alignment'] = 'viewport'; + } + } + if (this.layout.get('text-pitch-alignment') === 'auto') { + this.layout._values['text-pitch-alignment'] = this.layout.get('text-rotation-alignment'); + } + if (this.layout.get('icon-pitch-alignment') === 'auto') { + this.layout._values['icon-pitch-alignment'] = this.layout.get('icon-rotation-alignment'); + } + if (this.layout.get('symbol-placement') === 'point') { + const writingModes = this.layout.get('text-writing-mode'); + if (writingModes) { + const deduped = []; + for (const m of writingModes) { + if (deduped.indexOf(m) < 0) + deduped.push(m); + } + this.layout._values['text-writing-mode'] = deduped; + } else { + this.layout._values['text-writing-mode'] = ['horizontal']; + } + } + this._setPaintOverrides(); + } + getValueAndResolveTokens(name, feature, canonical, availableImages) { + const value = this.layout.get(name).evaluate(feature, {}, canonical, availableImages); + const unevaluated = this._unevaluatedLayout._values[name]; + if (!unevaluated.isDataDriven() && !isExpression(unevaluated.value) && value) { + return resolveTokens(feature.properties, value); + } + return value; + } + createBucket(parameters) { + return new SymbolBucket(parameters); + } + queryRadius() { + return 0; + } + queryIntersectsFeature() { + return false; + } + _setPaintOverrides() { + for (const overridable of properties$6.paint.overridableProperties) { + if (!SymbolStyleLayer.hasPaintOverride(this.layout, overridable)) { + continue; + } + const overriden = this.paint.get(overridable); + const override = new FormatSectionOverride(overriden); + const styleExpression = new StyleExpression(override, overriden.property.specification); + let expression = null; + if (overriden.value.kind === 'constant' || overriden.value.kind === 'source') { + expression = new ZoomConstantExpression('source', styleExpression); + } else { + expression = new ZoomDependentExpression('composite', styleExpression, overriden.value.zoomStops, overriden.value._interpolationType); + } + this.paint._values[overridable] = new PossiblyEvaluatedPropertyValue(overriden.property, expression, overriden.parameters); + } + } + _handleOverridablePaintPropertyUpdate(name, oldValue, newValue) { + if (!this.layout || oldValue.isDataDriven() || newValue.isDataDriven()) { + return false; + } + return SymbolStyleLayer.hasPaintOverride(this.layout, name); + } + static hasPaintOverride(layout, propertyName) { + const textField = layout.get('text-field'); + const property = properties$6.paint.properties[propertyName]; + let hasOverrides = false; + const checkSections = sections => { + for (const section of sections) { + if (property.overrides && property.overrides.hasOverride(section)) { + hasOverrides = true; + return; + } + } + }; + if (textField.value.kind === 'constant' && textField.value.value instanceof Formatted) { + checkSections(textField.value.value.sections); + } else if (textField.value.kind === 'source') { + const checkExpression = expression => { + if (hasOverrides) + return; + if (expression instanceof Literal && typeOf(expression.value) === FormattedType) { + const formatted = expression.value; + checkSections(formatted.sections); + } else if (expression instanceof FormatExpression) { + checkSections(expression.sections); + } else { + expression.eachChild(checkExpression); + } + }; + const expr = textField.value; + if (expr._styleExpression) { + checkExpression(expr._styleExpression.expression); + } + } + return hasOverrides; + } + getProgramConfiguration(zoom) { + return new ProgramConfiguration(this, zoom); + } +} + +const paint$8 = new Properties({ + 'background-color': new DataConstantProperty(spec['paint_background']['background-color']), + 'background-pattern': new CrossFadedProperty(spec['paint_background']['background-pattern']), + 'background-opacity': new DataConstantProperty(spec['paint_background']['background-opacity']) +}); +var properties$7 = { paint: paint$8 }; + +class BackgroundStyleLayer extends StyleLayer { + constructor(layer) { + super(layer, properties$7); + } + getProgramIds() { + const image = this.paint.get('background-pattern'); + return [image ? 'backgroundPattern' : 'background']; + } +} + +const paint$9 = new Properties({ + 'raster-opacity': new DataConstantProperty(spec['paint_raster']['raster-opacity']), + 'raster-hue-rotate': new DataConstantProperty(spec['paint_raster']['raster-hue-rotate']), + 'raster-brightness-min': new DataConstantProperty(spec['paint_raster']['raster-brightness-min']), + 'raster-brightness-max': new DataConstantProperty(spec['paint_raster']['raster-brightness-max']), + 'raster-saturation': new DataConstantProperty(spec['paint_raster']['raster-saturation']), + 'raster-contrast': new DataConstantProperty(spec['paint_raster']['raster-contrast']), + 'raster-resampling': new DataConstantProperty(spec['paint_raster']['raster-resampling']), + 'raster-fade-duration': new DataConstantProperty(spec['paint_raster']['raster-fade-duration']) +}); +var properties$8 = { paint: paint$9 }; + +class RasterStyleLayer extends StyleLayer { + constructor(layer) { + super(layer, properties$8); + } + getProgramIds() { + return ['raster']; + } +} + +function validateCustomStyleLayer(layerObject) { + const errors = []; + const id = layerObject.id; + if (id === undefined) { + errors.push({ message: `layers.${ id }: missing required property "id"` }); + } + if (layerObject.render === undefined) { + errors.push({ message: `layers.${ id }: missing required method "render"` }); + } + if (layerObject.renderingMode && layerObject.renderingMode !== '2d' && layerObject.renderingMode !== '3d') { + errors.push({ message: `layers.${ id }: property "renderingMode" must be either "2d" or "3d"` }); + } + return errors; +} +class CustomStyleLayer extends StyleLayer { + constructor(implementation) { + super(implementation, {}); + this.implementation = implementation; + } + is3D() { + return this.implementation.renderingMode === '3d'; + } + hasOffscreenPass() { + return this.implementation.prerender !== undefined; + } + recalculate() { + } + updateTransitions() { + } + hasTransition() { + } + serialize() { + } + onAdd(map) { + if (this.implementation.onAdd) { + this.implementation.onAdd(map, map.painter.context.gl); + } + } + onRemove(map) { + if (this.implementation.onRemove) { + this.implementation.onRemove(map, map.painter.context.gl); + } + } +} + +const paint$a = new Properties({ + 'sky-type': new DataConstantProperty(spec['paint_sky']['sky-type']), + 'sky-atmosphere-sun': new DataConstantProperty(spec['paint_sky']['sky-atmosphere-sun']), + 'sky-atmosphere-sun-intensity': new DataConstantProperty(spec['paint_sky']['sky-atmosphere-sun-intensity']), + 'sky-gradient-center': new DataConstantProperty(spec['paint_sky']['sky-gradient-center']), + 'sky-gradient-radius': new DataConstantProperty(spec['paint_sky']['sky-gradient-radius']), + 'sky-gradient': new ColorRampProperty(spec['paint_sky']['sky-gradient']), + 'sky-atmosphere-halo-color': new DataConstantProperty(spec['paint_sky']['sky-atmosphere-halo-color']), + 'sky-atmosphere-color': new DataConstantProperty(spec['paint_sky']['sky-atmosphere-color']), + 'sky-opacity': new DataConstantProperty(spec['paint_sky']['sky-opacity']) +}); +var properties$9 = { paint: paint$a }; + +function getCelestialDirection(azimuth, altitude, leftHanded) { + const up = fromValues(0, 0, 1); + const rotation = identity$1(create$5()); + rotateY$1(rotation, rotation, leftHanded ? -degToRad(azimuth) + Math.PI : degToRad(azimuth)); + rotateX$1(rotation, rotation, -degToRad(altitude)); + transformQuat(up, up, rotation); + return normalize(up, up); +} +class SkyLayer extends StyleLayer { + constructor(layer) { + super(layer, properties$9); + this._updateColorRamp(); + } + _handleSpecialPaintPropertyUpdate(name) { + if (name === 'sky-gradient') { + this._updateColorRamp(); + } else if (name === 'sky-atmosphere-sun' || name === 'sky-atmosphere-halo-color' || name === 'sky-atmosphere-color' || name === 'sky-atmosphere-sun-intensity') { + this._skyboxInvalidated = true; + } + } + _updateColorRamp() { + const expression = this._transitionablePaint._values['sky-gradient'].value.expression; + this.colorRamp = renderColorRamp({ + expression, + evaluationKey: 'skyRadialProgress' + }); + if (this.colorRampTexture) { + this.colorRampTexture.destroy(); + this.colorRampTexture = null; + } + } + needsSkyboxCapture(painter) { + if (!!this._skyboxInvalidated || !this.skyboxTexture || !this.skyboxGeometry) { + return true; + } + if (!this.paint.get('sky-atmosphere-sun')) { + const lightPosition = painter.style.light.properties.get('position'); + return this._lightPosition.azimuthal !== lightPosition.azimuthal || this._lightPosition.polar !== lightPosition.polar; + } + } + getCenter(painter, leftHanded) { + const type = this.paint.get('sky-type'); + if (type === 'atmosphere') { + const sunPosition = this.paint.get('sky-atmosphere-sun'); + const useLightPosition = !sunPosition; + const light = painter.style.light; + const lightPosition = light.properties.get('position'); + if (useLightPosition && light.properties.get('anchor') === 'viewport') { + warnOnce('The sun direction is attached to a light with viewport anchor, lighting may behave unexpectedly.'); + } + return useLightPosition ? getCelestialDirection(lightPosition.azimuthal, -lightPosition.polar + 90, leftHanded) : getCelestialDirection(sunPosition[0], -sunPosition[1] + 90, leftHanded); + } else if (type === 'gradient') { + const direction = this.paint.get('sky-gradient-center'); + return getCelestialDirection(direction[0], -direction[1] + 90, leftHanded); + } + } + is3D() { + return false; + } + isSky() { + return true; + } + markSkyboxValid(painter) { + this._skyboxInvalidated = false; + this._lightPosition = painter.style.light.properties.get('position'); + } + hasOffscreenPass() { + return true; + } + getProgramIds() { + const type = this.paint.get('sky-type'); + if (type === 'atmosphere') { + return [ + 'skyboxCapture', + 'skybox' + ]; + } else if (type === 'gradient') { + return ['skyboxGradient']; + } + return null; + } +} + +const subclasses = { + circle: CircleStyleLayer, + heatmap: HeatmapStyleLayer, + hillshade: HillshadeStyleLayer, + fill: FillStyleLayer, + 'fill-extrusion': FillExtrusionStyleLayer, + line: LineStyleLayer, + symbol: SymbolStyleLayer, + background: BackgroundStyleLayer, + raster: RasterStyleLayer, + sky: SkyLayer +}; +function createStyleLayer(layer) { + if (layer.type === 'custom') { + return new CustomStyleLayer(layer); + } else { + return new subclasses[layer.type](layer); + } +} + +const {HTMLImageElement, HTMLCanvasElement, HTMLVideoElement, ImageData: ImageData$1, ImageBitmap: ImageBitmap$1} = window$1; +class Texture { + constructor(context, image, format, options) { + this.context = context; + this.format = format; + this.texture = context.gl.createTexture(); + this.update(image, options); + } + update(image, options, position) { + const {width, height} = image; + const resize = (!this.size || this.size[0] !== width || this.size[1] !== height) && !position; + const {context} = this; + const {gl} = context; + this.useMipmap = Boolean(options && options.useMipmap); + gl.bindTexture(gl.TEXTURE_2D, this.texture); + context.pixelStoreUnpackFlipY.set(false); + context.pixelStoreUnpack.set(1); + context.pixelStoreUnpackPremultiplyAlpha.set(this.format === gl.RGBA && (!options || options.premultiply !== false)); + if (resize) { + this.size = [ + width, + height + ]; + if (image instanceof HTMLImageElement || image instanceof HTMLCanvasElement || image instanceof HTMLVideoElement || image instanceof ImageData$1 || ImageBitmap$1 && image instanceof ImageBitmap$1) { + gl.texImage2D(gl.TEXTURE_2D, 0, this.format, this.format, gl.UNSIGNED_BYTE, image); + } else { + gl.texImage2D(gl.TEXTURE_2D, 0, this.format, width, height, 0, this.format, gl.UNSIGNED_BYTE, image.data); + } + } else { + const {x, y} = position || { + x: 0, + y: 0 + }; + if (image instanceof HTMLImageElement || image instanceof HTMLCanvasElement || image instanceof HTMLVideoElement || image instanceof ImageData$1 || ImageBitmap$1 && image instanceof ImageBitmap$1) { + gl.texSubImage2D(gl.TEXTURE_2D, 0, x, y, gl.RGBA, gl.UNSIGNED_BYTE, image); + } else { + gl.texSubImage2D(gl.TEXTURE_2D, 0, x, y, width, height, gl.RGBA, gl.UNSIGNED_BYTE, image.data); + } + } + if (this.useMipmap && this.isSizePowerOfTwo()) { + gl.generateMipmap(gl.TEXTURE_2D); + } + } + bind(filter, wrap, minFilter) { + const {context} = this; + const {gl} = context; + gl.bindTexture(gl.TEXTURE_2D, this.texture); + if (minFilter === gl.LINEAR_MIPMAP_NEAREST && !this.isSizePowerOfTwo()) { + minFilter = gl.LINEAR; + } + if (filter !== this.filter) { + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, filter); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, minFilter || filter); + this.filter = filter; + } + if (wrap !== this.wrap) { + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, wrap); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, wrap); + this.wrap = wrap; + } + } + isSizePowerOfTwo() { + return this.size[0] === this.size[1] && Math.log(this.size[0]) / Math.LN2 % 1 === 0; + } + destroy() { + const {gl} = this.context; + gl.deleteTexture(this.texture); + this.texture = null; + } +} + +class ThrottledInvoker { + constructor(callback) { + this._callback = callback; + this._triggered = false; + if (typeof MessageChannel !== 'undefined') { + this._channel = new MessageChannel(); + this._channel.port2.onmessage = () => { + this._triggered = false; + this._callback(); + }; + } + } + trigger() { + if (!this._triggered) { + this._triggered = true; + if (this._channel) { + this._channel.port1.postMessage(true); + } else { + setTimeout(() => { + this._triggered = false; + this._callback(); + }, 0); + } + } + } + remove() { + delete this._channel; + this._callback = () => { + }; + } +} + +const performance = window$1.performance; +class RequestPerformance { + constructor(request) { + this._marks = { + start: [ + request.url, + 'start' + ].join('#'), + end: [ + request.url, + 'end' + ].join('#'), + measure: request.url.toString() + }; + performance.mark(this._marks.start); + } + finish() { + performance.mark(this._marks.end); + let resourceTimingData = performance.getEntriesByName(this._marks.measure); + if (resourceTimingData.length === 0) { + performance.measure(this._marks.measure, this._marks.start, this._marks.end); + resourceTimingData = performance.getEntriesByName(this._marks.measure); + performance.clearMarks(this._marks.start); + performance.clearMarks(this._marks.end); + performance.clearMeasures(this._marks.measure); + } + return resourceTimingData; + } +} + +class Scheduler { + constructor() { + this.tasks = {}; + this.taskQueue = []; + bindAll(['process'], this); + this.invoker = new ThrottledInvoker(this.process); + this.nextId = 0; + } + add(fn, metadata) { + const id = this.nextId++; + this.tasks[id] = { + fn, + metadata, + priority: getPriority(metadata), + id + }; + this.taskQueue.push(id); + this.invoker.trigger(); + return { + cancel: () => { + delete this.tasks[id]; + } + }; + } + process() { + const m = isWorker() ? void 0 : undefined; + try { + this.taskQueue = this.taskQueue.filter(id => !!this.tasks[id]); + if (!this.taskQueue.length) { + return; + } + const id = this.pick(); + if (id === null) + return; + const task = this.tasks[id]; + delete this.tasks[id]; + if (this.taskQueue.length) { + this.invoker.trigger(); + } + if (!task) { + return; + } + task.fn(); + } finally { + } + } + pick() { + let minIndex = null; + let minPriority = Infinity; + for (let i = 0; i < this.taskQueue.length; i++) { + const id = this.taskQueue[i]; + const task = this.tasks[id]; + if (task.priority < minPriority) { + minPriority = task.priority; + minIndex = i; + } + } + if (minIndex === null) + return null; + const id = this.taskQueue[minIndex]; + this.taskQueue.splice(minIndex, 1); + return id; + } + remove() { + this.invoker.remove(); + } +} +function getPriority({type, isSymbolTile, zoom}) { + zoom = zoom || 0; + if (type === 'message') + return 0; + if (type === 'maybePrepare' && !isSymbolTile) + return 100 - zoom; + if (type === 'parseTile' && !isSymbolTile) + return 200 - zoom; + if (type === 'parseTile' && isSymbolTile) + return 300 - zoom; + if (type === 'maybePrepare' && isSymbolTile) + return 400 - zoom; + return 500; +} + +class Actor { + constructor(target, parent, mapId) { + this.target = target; + this.parent = parent; + this.mapId = mapId; + this.callbacks = {}; + this.cancelCallbacks = {}; + bindAll(['receive'], this); + this.target.addEventListener('message', this.receive, false); + this.globalScope = isWorker() ? target : window$1; + this.scheduler = new Scheduler(); + } + send(type, data, callback, targetMapId, mustQueue = false, callbackMetadata) { + const id = Math.round(Math.random() * 1000000000000000000).toString(36).substring(0, 10); + if (callback) { + callback.metadata = callbackMetadata; + this.callbacks[id] = callback; + } + const buffers = isSafari(this.globalScope) ? undefined : []; + this.target.postMessage({ + id, + type, + hasCallback: !!callback, + targetMapId, + mustQueue, + sourceMapId: this.mapId, + data: serialize(data, buffers) + }, buffers); + return { + cancel: () => { + if (callback) { + delete this.callbacks[id]; + } + this.target.postMessage({ + id, + type: '', + targetMapId, + sourceMapId: this.mapId + }); + } + }; + } + receive(message) { + const data = message.data, id = data.id; + if (!id) { + return; + } + if (data.targetMapId && this.mapId !== data.targetMapId) { + return; + } + if (data.type === '') { + const cancel = this.cancelCallbacks[id]; + delete this.cancelCallbacks[id]; + if (cancel) { + cancel.cancel(); + } + } else { + if (isWorker() || data.mustQueue) { + const callback = this.callbacks[id]; + const metadata = callback && callback.metadata || { type: 'message' }; + this.cancelCallbacks[id] = this.scheduler.add(() => this.processTask(id, data), metadata); + } else { + this.processTask(id, data); + } + } + } + processTask(id, task) { + if (task.type === '') { + const callback = this.callbacks[id]; + delete this.callbacks[id]; + if (callback) { + if (task.error) { + callback(deserialize(task.error)); + } else { + callback(null, deserialize(task.data)); + } + } + } else { + const buffers = isSafari(this.globalScope) ? undefined : []; + const done = task.hasCallback ? (err, data) => { + delete this.cancelCallbacks[id]; + this.target.postMessage({ + id, + type: '', + sourceMapId: this.mapId, + error: err ? serialize(err) : null, + data: serialize(data, buffers) + }, buffers); + } : _ => { + }; + const params = deserialize(task.data); + if (this.parent[task.type]) { + this.parent[task.type](task.sourceMapId, params, done); + } else if (this.parent.getWorkerSource) { + const keys = task.type.split('.'); + const scope = this.parent.getWorkerSource(task.sourceMapId, keys[0], params.source); + scope[keys[1]](params, done); + } else { + done(new Error(`Could not find function ${ task.type }`)); + } + } + } + remove() { + this.scheduler.remove(); + this.target.removeEventListener('message', this.receive, false); + } +} + +class LngLatBounds { + constructor(sw, ne) { + if (!sw) ; else if (ne) { + this.setSouthWest(sw).setNorthEast(ne); + } else if (sw.length === 4) { + this.setSouthWest([ + sw[0], + sw[1] + ]).setNorthEast([ + sw[2], + sw[3] + ]); + } else { + this.setSouthWest(sw[0]).setNorthEast(sw[1]); + } + } + setNorthEast(ne) { + this._ne = ne instanceof LngLat ? new LngLat(ne.lng, ne.lat) : LngLat.convert(ne); + return this; + } + setSouthWest(sw) { + this._sw = sw instanceof LngLat ? new LngLat(sw.lng, sw.lat) : LngLat.convert(sw); + return this; + } + extend(obj) { + const sw = this._sw, ne = this._ne; + let sw2, ne2; + if (obj instanceof LngLat) { + sw2 = obj; + ne2 = obj; + } else if (obj instanceof LngLatBounds) { + sw2 = obj._sw; + ne2 = obj._ne; + if (!sw2 || !ne2) + return this; + } else { + if (Array.isArray(obj)) { + if (obj.length === 4 || obj.every(Array.isArray)) { + const lngLatBoundsObj = obj; + return this.extend(LngLatBounds.convert(lngLatBoundsObj)); + } else { + const lngLatObj = obj; + return this.extend(LngLat.convert(lngLatObj)); + } + } + return this; + } + if (!sw && !ne) { + this._sw = new LngLat(sw2.lng, sw2.lat); + this._ne = new LngLat(ne2.lng, ne2.lat); + } else { + sw.lng = Math.min(sw2.lng, sw.lng); + sw.lat = Math.min(sw2.lat, sw.lat); + ne.lng = Math.max(ne2.lng, ne.lng); + ne.lat = Math.max(ne2.lat, ne.lat); + } + return this; + } + getCenter() { + return new LngLat((this._sw.lng + this._ne.lng) / 2, (this._sw.lat + this._ne.lat) / 2); + } + getSouthWest() { + return this._sw; + } + getNorthEast() { + return this._ne; + } + getNorthWest() { + return new LngLat(this.getWest(), this.getNorth()); + } + getSouthEast() { + return new LngLat(this.getEast(), this.getSouth()); + } + getWest() { + return this._sw.lng; + } + getSouth() { + return this._sw.lat; + } + getEast() { + return this._ne.lng; + } + getNorth() { + return this._ne.lat; + } + toArray() { + return [ + this._sw.toArray(), + this._ne.toArray() + ]; + } + toString() { + return `LngLatBounds(${ this._sw.toString() }, ${ this._ne.toString() })`; + } + isEmpty() { + return !(this._sw && this._ne); + } + contains(lnglat) { + const {lng, lat} = LngLat.convert(lnglat); + const containsLatitude = this._sw.lat <= lat && lat <= this._ne.lat; + let containsLongitude = this._sw.lng <= lng && lng <= this._ne.lng; + if (this._sw.lng > this._ne.lng) { + containsLongitude = this._sw.lng >= lng && lng >= this._ne.lng; + } + return containsLatitude && containsLongitude; + } + static convert(input) { + if (!input || input instanceof LngLatBounds) + return input; + return new LngLatBounds(input); + } +} + +const earthRadius = 6371008.8; +class LngLat { + constructor(lng, lat) { + if (isNaN(lng) || isNaN(lat)) { + throw new Error(`Invalid LngLat object: (${ lng }, ${ lat })`); + } + this.lng = +lng; + this.lat = +lat; + if (this.lat > 90 || this.lat < -90) { + throw new Error('Invalid LngLat latitude value: must be between -90 and 90'); + } + } + wrap() { + return new LngLat(wrap(this.lng, -180, 180), this.lat); + } + toArray() { + return [ + this.lng, + this.lat + ]; + } + toString() { + return `LngLat(${ this.lng }, ${ this.lat })`; + } + distanceTo(lngLat) { + const rad = Math.PI / 180; + const lat1 = this.lat * rad; + const lat2 = lngLat.lat * rad; + const a = Math.sin(lat1) * Math.sin(lat2) + Math.cos(lat1) * Math.cos(lat2) * Math.cos((lngLat.lng - this.lng) * rad); + const maxMeters = earthRadius * Math.acos(Math.min(a, 1)); + return maxMeters; + } + toBounds(radius = 0) { + const earthCircumferenceInMetersAtEquator = 40075017; + const latAccuracy = 360 * radius / earthCircumferenceInMetersAtEquator, lngAccuracy = latAccuracy / Math.cos(Math.PI / 180 * this.lat); + return new LngLatBounds(new LngLat(this.lng - lngAccuracy, this.lat - latAccuracy), new LngLat(this.lng + lngAccuracy, this.lat + latAccuracy)); + } + static convert(input) { + if (input instanceof LngLat) { + return input; + } + if (Array.isArray(input) && (input.length === 2 || input.length === 3)) { + return new LngLat(Number(input[0]), Number(input[1])); + } + if (!Array.isArray(input) && typeof input === 'object' && input !== null) { + return new LngLat(Number('lng' in input ? input.lng : input.lon), Number(input.lat)); + } + throw new Error('`LngLatLike` argument must be specified as a LngLat instance, an object {lng: , lat: }, an object {lon: , lat: }, or an array of [, ]'); + } +} + +const earthCircumfrence = 2 * Math.PI * earthRadius; +function circumferenceAtLatitude(latitude) { + return earthCircumfrence * Math.cos(latitude * Math.PI / 180); +} +function mercatorXfromLng$1(lng) { + return (180 + lng) / 360; +} +function mercatorYfromLat$1(lat) { + return (180 - 180 / Math.PI * Math.log(Math.tan(Math.PI / 4 + lat * Math.PI / 360))) / 360; +} +function mercatorZfromAltitude(altitude, lat) { + return altitude / circumferenceAtLatitude(lat); +} +function lngFromMercatorX(x) { + return x * 360 - 180; +} +function latFromMercatorY(y) { + const y2 = 180 - y * 360; + return 360 / Math.PI * Math.atan(Math.exp(y2 * Math.PI / 180)) - 90; +} +function altitudeFromMercatorZ(z, y) { + return z * circumferenceAtLatitude(latFromMercatorY(y)); +} +function mercatorScale(lat) { + return 1 / Math.cos(lat * Math.PI / 180); +} +class MercatorCoordinate { + constructor(x, y, z = 0) { + this.x = +x; + this.y = +y; + this.z = +z; + } + static fromLngLat(lngLatLike, altitude = 0) { + const lngLat = LngLat.convert(lngLatLike); + return new MercatorCoordinate(mercatorXfromLng$1(lngLat.lng), mercatorYfromLat$1(lngLat.lat), mercatorZfromAltitude(altitude, lngLat.lat)); + } + toLngLat() { + return new LngLat(lngFromMercatorX(this.x), latFromMercatorY(this.y)); + } + toAltitude() { + return altitudeFromMercatorZ(this.z, this.y); + } + meterInMercatorCoordinateUnits() { + return 1 / earthCircumfrence * mercatorScale(latFromMercatorY(this.y)); + } +} + +/** + * getTileBBox + * + * @param {Number} x Tile coordinate x + * @param {Number} y Tile coordinate y + * @param {Number} z Tile zoom + * @returns {String} String of the bounding box + */ +function getTileBBox(x, y, z) { + // for Google/OSM tile scheme we need to alter the y + y = (Math.pow(2, z) - y - 1); + + var min = getMercCoords(x * 256, y * 256, z), + max = getMercCoords((x + 1) * 256, (y + 1) * 256, z); + + return min[0] + ',' + min[1] + ',' + max[0] + ',' + max[1]; +} + + +/** + * getMercCoords + * + * @param {Number} x Pixel coordinate x + * @param {Number} y Pixel coordinate y + * @param {Number} z Tile zoom + * @returns {Array} [x, y] + */ +function getMercCoords(x, y, z) { + var resolution = (2 * Math.PI * 6378137 / 256) / Math.pow(2, z), + merc_x = (x * resolution - 2 * Math.PI * 6378137 / 2.0), + merc_y = (y * resolution - 2 * Math.PI * 6378137 / 2.0); + + return [merc_x, merc_y]; +} + +class CanonicalTileID { + constructor(z, x, y) { + this.z = z; + this.x = x; + this.y = y; + this.key = calculateKey(0, z, z, x, y); + } + equals(id) { + return this.z === id.z && this.x === id.x && this.y === id.y; + } + url(urls, scheme) { + const bbox = getTileBBox(this.x, this.y, this.z); + const quadkey = getQuadkey(this.z, this.x, this.y); + return urls[(this.x + this.y) % urls.length].replace('{prefix}', (this.x % 16).toString(16) + (this.y % 16).toString(16)).replace('{z}', String(this.z)).replace('{x}', String(this.x)).replace('{y}', String(scheme === 'tms' ? Math.pow(2, this.z) - this.y - 1 : this.y)).replace('{quadkey}', quadkey).replace('{bbox-epsg-3857}', bbox); + } + getTilePoint(coord) { + const tilesAtZoom = Math.pow(2, this.z); + return new pointGeometry((coord.x * tilesAtZoom - this.x) * EXTENT$1, (coord.y * tilesAtZoom - this.y) * EXTENT$1); + } + getTileVec3(coord) { + const tilesAtZoom = Math.pow(2, this.z); + const x = (coord.x * tilesAtZoom - this.x) * EXTENT$1; + const y = (coord.y * tilesAtZoom - this.y) * EXTENT$1; + return fromValues(x, y, altitudeFromMercatorZ(coord.z, coord.y)); + } + toString() { + return `${ this.z }/${ this.x }/${ this.y }`; + } +} +class UnwrappedTileID { + constructor(wrap, canonical) { + this.wrap = wrap; + this.canonical = canonical; + this.key = calculateKey(wrap, canonical.z, canonical.z, canonical.x, canonical.y); + } +} +class OverscaledTileID { + constructor(overscaledZ, wrap, z, x, y) { + this.overscaledZ = overscaledZ; + this.wrap = wrap; + this.canonical = new CanonicalTileID(z, +x, +y); + this.key = wrap === 0 && overscaledZ === z ? this.canonical.key : calculateKey(wrap, overscaledZ, z, x, y); + } + equals(id) { + return this.overscaledZ === id.overscaledZ && this.wrap === id.wrap && this.canonical.equals(id.canonical); + } + scaledTo(targetZ) { + const zDifference = this.canonical.z - targetZ; + if (targetZ > this.canonical.z) { + return new OverscaledTileID(targetZ, this.wrap, this.canonical.z, this.canonical.x, this.canonical.y); + } else { + return new OverscaledTileID(targetZ, this.wrap, targetZ, this.canonical.x >> zDifference, this.canonical.y >> zDifference); + } + } + calculateScaledKey(targetZ, withWrap = true) { + if (this.overscaledZ === targetZ && withWrap) + return this.key; + if (targetZ > this.canonical.z) { + return calculateKey(this.wrap * +withWrap, targetZ, this.canonical.z, this.canonical.x, this.canonical.y); + } else { + const zDifference = this.canonical.z - targetZ; + return calculateKey(this.wrap * +withWrap, targetZ, targetZ, this.canonical.x >> zDifference, this.canonical.y >> zDifference); + } + } + isChildOf(parent) { + if (parent.wrap !== this.wrap) { + return false; + } + const zDifference = this.canonical.z - parent.canonical.z; + return parent.overscaledZ === 0 || parent.overscaledZ < this.overscaledZ && parent.canonical.x === this.canonical.x >> zDifference && parent.canonical.y === this.canonical.y >> zDifference; + } + children(sourceMaxZoom) { + if (this.overscaledZ >= sourceMaxZoom) { + return [new OverscaledTileID(this.overscaledZ + 1, this.wrap, this.canonical.z, this.canonical.x, this.canonical.y)]; + } + const z = this.canonical.z + 1; + const x = this.canonical.x * 2; + const y = this.canonical.y * 2; + return [ + new OverscaledTileID(z, this.wrap, z, x, y), + new OverscaledTileID(z, this.wrap, z, x + 1, y), + new OverscaledTileID(z, this.wrap, z, x, y + 1), + new OverscaledTileID(z, this.wrap, z, x + 1, y + 1) + ]; + } + isLessThan(rhs) { + if (this.wrap < rhs.wrap) + return true; + if (this.wrap > rhs.wrap) + return false; + if (this.overscaledZ < rhs.overscaledZ) + return true; + if (this.overscaledZ > rhs.overscaledZ) + return false; + if (this.canonical.x < rhs.canonical.x) + return true; + if (this.canonical.x > rhs.canonical.x) + return false; + if (this.canonical.y < rhs.canonical.y) + return true; + return false; + } + wrapped() { + return new OverscaledTileID(this.overscaledZ, 0, this.canonical.z, this.canonical.x, this.canonical.y); + } + unwrapTo(wrap) { + return new OverscaledTileID(this.overscaledZ, wrap, this.canonical.z, this.canonical.x, this.canonical.y); + } + overscaleFactor() { + return Math.pow(2, this.overscaledZ - this.canonical.z); + } + toUnwrapped() { + return new UnwrappedTileID(this.wrap, this.canonical); + } + toString() { + return `${ this.overscaledZ }/${ this.canonical.x }/${ this.canonical.y }`; + } + getTilePoint(coord) { + return this.canonical.getTilePoint(new MercatorCoordinate(coord.x - this.wrap, coord.y)); + } + getTileVec3(coord) { + return this.canonical.getTileVec3(new MercatorCoordinate(coord.x - this.wrap, coord.y, coord.z)); + } +} +function calculateKey(wrap, overscaledZ, z, x, y) { + const dim = 1 << Math.min(z, 22); + let xy = dim * (y % dim) + x % dim; + if (wrap && z < 22) { + const bitsAvailable = 2 * (22 - z); + xy += dim * dim * ((wrap < 0 ? -2 * wrap - 1 : 2 * wrap) % (1 << bitsAvailable)); + } + const key = (xy * 32 + z) * 16 + (overscaledZ - z); + return key; +} +function getQuadkey(z, x, y) { + let quadkey = '', mask; + for (let i = z; i > 0; i--) { + mask = 1 << i - 1; + quadkey += (x & mask ? 1 : 0) + (y & mask ? 2 : 0); + } + return quadkey; +} +register('CanonicalTileID', CanonicalTileID); +register('OverscaledTileID', OverscaledTileID, { omit: ['posMatrix'] }); + +class DictionaryCoder { + constructor(strings) { + this._stringToNumber = {}; + this._numberToString = []; + for (let i = 0; i < strings.length; i++) { + const string = strings[i]; + this._stringToNumber[string] = i; + this._numberToString[i] = string; + } + } + encode(string) { + return this._stringToNumber[string]; + } + decode(n) { + return this._numberToString[n]; + } +} + +class Feature { + constructor(vectorTileFeature, z, x, y, id) { + this.type = 'Feature'; + this._vectorTileFeature = vectorTileFeature; + vectorTileFeature._z = z; + vectorTileFeature._x = x; + vectorTileFeature._y = y; + this.properties = vectorTileFeature.properties; + this.id = id; + } + get geometry() { + if (this._geometry === undefined) { + this._geometry = this._vectorTileFeature.toGeoJSON(this._vectorTileFeature._x, this._vectorTileFeature._y, this._vectorTileFeature._z).geometry; + } + return this._geometry; + } + set geometry(g) { + this._geometry = g; + } + toJSON() { + const json = { geometry: this.geometry }; + for (const i in this) { + if (i === '_geometry' || i === '_vectorTileFeature') + continue; + json[i] = this[i]; + } + return json; + } +} + +function deserialize$1(input, style) { + const output = {}; + if (!style) + return output; + for (const bucket of input) { + const layers = bucket.layerIds.map(id => style.getLayer(id)).filter(Boolean); + if (layers.length === 0) { + continue; + } + bucket.layers = layers; + if (bucket.stateDependentLayerIds) { + bucket.stateDependentLayers = bucket.stateDependentLayerIds.map(lId => layers.filter(l => l.id === lId)[0]); + } + for (const layer of layers) { + output[layer.id] = bucket; + } + } + return output; +} + +var posAttributes = createLayout([{ + name: 'a_pos', + type: 'Int16', + components: 2 + }]); + +const CLOCK_SKEW_RETRY_TIMEOUT = 30000; +class Tile { + constructor(tileID, size, tileZoom) { + this.tileID = tileID; + this.uid = uniqueId(); + this.uses = 0; + this.tileSize = size; + this.tileZoom = tileZoom; + this.buckets = {}; + this.expirationTime = null; + this.queryPadding = 0; + this.hasSymbolBuckets = false; + this.hasRTLText = false; + this.dependencies = {}; + this.expiredRequestCount = 0; + this.state = 'loading'; + } + registerFadeDuration(duration) { + const fadeEndTime = duration + this.timeAdded; + if (fadeEndTime < exported.now()) + return; + if (this.fadeEndTime && fadeEndTime < this.fadeEndTime) + return; + this.fadeEndTime = fadeEndTime; + } + wasRequested() { + return this.state === 'errored' || this.state === 'loaded' || this.state === 'reloading'; + } + loadVectorData(data, painter, justReloaded) { + if (this.hasData()) { + this.unloadVectorData(); + } + this.state = 'loaded'; + if (!data) { + this.collisionBoxArray = new CollisionBoxArray(); + return; + } + if (data.featureIndex) { + this.latestFeatureIndex = data.featureIndex; + if (data.rawTileData) { + this.latestRawTileData = data.rawTileData; + this.latestFeatureIndex.rawTileData = data.rawTileData; + } else if (this.latestRawTileData) { + this.latestFeatureIndex.rawTileData = this.latestRawTileData; + } + } + this.collisionBoxArray = data.collisionBoxArray; + this.buckets = deserialize$1(data.buckets, painter.style); + this.hasSymbolBuckets = false; + for (const id in this.buckets) { + const bucket = this.buckets[id]; + if (bucket instanceof SymbolBucket) { + this.hasSymbolBuckets = true; + if (justReloaded) { + bucket.justReloaded = true; + } else { + break; + } + } + } + this.hasRTLText = false; + if (this.hasSymbolBuckets) { + for (const id in this.buckets) { + const bucket = this.buckets[id]; + if (bucket instanceof SymbolBucket) { + if (bucket.hasRTLText) { + this.hasRTLText = true; + lazyLoadRTLTextPlugin(); + break; + } + } + } + } + this.queryPadding = 0; + for (const id in this.buckets) { + const bucket = this.buckets[id]; + this.queryPadding = Math.max(this.queryPadding, painter.style.getLayer(id).queryRadius(bucket)); + } + if (data.imageAtlas) { + this.imageAtlas = data.imageAtlas; + } + if (data.glyphAtlasImage) { + this.glyphAtlasImage = data.glyphAtlasImage; + } + } + unloadVectorData() { + for (const id in this.buckets) { + this.buckets[id].destroy(); + } + this.buckets = {}; + if (this.imageAtlasTexture) { + this.imageAtlasTexture.destroy(); + } + if (this.imageAtlas) { + this.imageAtlas = null; + } + if (this.glyphAtlasTexture) { + this.glyphAtlasTexture.destroy(); + } + this.latestFeatureIndex = null; + this.state = 'unloaded'; + } + getBucket(layer) { + return this.buckets[layer.id]; + } + upload(context) { + for (const id in this.buckets) { + const bucket = this.buckets[id]; + if (bucket.uploadPending()) { + bucket.upload(context); + } + } + const gl = context.gl; + if (this.imageAtlas && !this.imageAtlas.uploaded) { + this.imageAtlasTexture = new Texture(context, this.imageAtlas.image, gl.RGBA); + this.imageAtlas.uploaded = true; + } + if (this.glyphAtlasImage) { + this.glyphAtlasTexture = new Texture(context, this.glyphAtlasImage, gl.ALPHA); + this.glyphAtlasImage = null; + } + } + prepare(imageManager) { + if (this.imageAtlas) { + this.imageAtlas.patchUpdatedImages(imageManager, this.imageAtlasTexture); + } + } + queryRenderedFeatures(layers, serializedLayers, sourceFeatureState, tileResult, params, transform, pixelPosMatrix, visualizeQueryGeometry) { + if (!this.latestFeatureIndex || !this.latestFeatureIndex.rawTileData) + return {}; + return this.latestFeatureIndex.query({ + tileResult, + pixelPosMatrix, + transform, + params + }, layers, serializedLayers, sourceFeatureState); + } + querySourceFeatures(result, params) { + const featureIndex = this.latestFeatureIndex; + if (!featureIndex || !featureIndex.rawTileData) + return; + const vtLayers = featureIndex.loadVTLayers(); + const sourceLayer = params ? params.sourceLayer : ''; + const layer = vtLayers._geojsonTileLayer || vtLayers[sourceLayer]; + if (!layer) + return; + const filter = createFilter(params && params.filter); + const {z, x, y} = this.tileID.canonical; + const coord = { + z, + x, + y + }; + for (let i = 0; i < layer.length; i++) { + const feature = layer.feature(i); + if (filter.needGeometry) { + const evaluationFeature = toEvaluationFeature(feature, true); + if (!filter.filter(new EvaluationParameters(this.tileID.overscaledZ), evaluationFeature, this.tileID.canonical)) + continue; + } else if (!filter.filter(new EvaluationParameters(this.tileID.overscaledZ), feature)) { + continue; + } + const id = featureIndex.getId(feature, sourceLayer); + const geojsonFeature = new Feature(feature, z, x, y, id); + geojsonFeature.tile = coord; + result.push(geojsonFeature); + } + } + hasData() { + return this.state === 'loaded' || this.state === 'reloading' || this.state === 'expired'; + } + patternsLoaded() { + return this.imageAtlas && !!Object.keys(this.imageAtlas.patternPositions).length; + } + setExpiryData(data) { + const prior = this.expirationTime; + if (data.cacheControl) { + const parsedCC = parseCacheControl(data.cacheControl); + if (parsedCC['max-age']) + this.expirationTime = Date.now() + parsedCC['max-age'] * 1000; + } else if (data.expires) { + this.expirationTime = new Date(data.expires).getTime(); + } + if (this.expirationTime) { + const now = Date.now(); + let isExpired = false; + if (this.expirationTime > now) { + isExpired = false; + } else if (!prior) { + isExpired = true; + } else if (this.expirationTime < prior) { + isExpired = true; + } else { + const delta = this.expirationTime - prior; + if (!delta) { + isExpired = true; + } else { + this.expirationTime = now + Math.max(delta, CLOCK_SKEW_RETRY_TIMEOUT); + } + } + if (isExpired) { + this.expiredRequestCount++; + this.state = 'expired'; + } else { + this.expiredRequestCount = 0; + } + } + } + getExpiryTimeout() { + if (this.expirationTime) { + if (this.expiredRequestCount) { + return 1000 * (1 << Math.min(this.expiredRequestCount - 1, 31)); + } else { + return Math.min(this.expirationTime - new Date().getTime(), Math.pow(2, 31) - 1); + } + } + } + setFeatureState(states, painter) { + if (!this.latestFeatureIndex || !this.latestFeatureIndex.rawTileData || Object.keys(states).length === 0) { + return; + } + const vtLayers = this.latestFeatureIndex.loadVTLayers(); + for (const id in this.buckets) { + if (!painter.style.hasLayer(id)) + continue; + const bucket = this.buckets[id]; + const sourceLayerId = bucket.layers[0]['sourceLayer'] || '_geojsonTileLayer'; + const sourceLayer = vtLayers[sourceLayerId]; + const sourceLayerStates = states[sourceLayerId]; + if (!sourceLayer || !sourceLayerStates || Object.keys(sourceLayerStates).length === 0) + continue; + bucket.update(sourceLayerStates, sourceLayer, this.imageAtlas && this.imageAtlas.patternPositions || {}); + const layer = painter && painter.style && painter.style.getLayer(id); + if (layer) { + this.queryPadding = Math.max(this.queryPadding, layer.queryRadius(bucket)); + } + } + } + holdingForFade() { + return this.symbolFadeHoldUntil !== undefined; + } + symbolFadeFinished() { + return !this.symbolFadeHoldUntil || this.symbolFadeHoldUntil < exported.now(); + } + clearFadeHold() { + this.symbolFadeHoldUntil = undefined; + } + setHoldDuration(duration) { + this.symbolFadeHoldUntil = exported.now() + duration; + } + setDependencies(namespace, dependencies) { + const index = {}; + for (const dep of dependencies) { + index[dep] = true; + } + this.dependencies[namespace] = index; + } + hasDependency(namespaces, keys) { + for (const namespace of namespaces) { + const dependencies = this.dependencies[namespace]; + if (dependencies) { + for (const key of keys) { + if (dependencies[key]) { + return true; + } + } + } + } + return false; + } + clearQueryDebugViz() { + } +} + +class SourceFeatureState { + constructor() { + this.state = {}; + this.stateChanges = {}; + this.deletedStates = {}; + } + updateState(sourceLayer, featureId, newState) { + const feature = String(featureId); + this.stateChanges[sourceLayer] = this.stateChanges[sourceLayer] || {}; + this.stateChanges[sourceLayer][feature] = this.stateChanges[sourceLayer][feature] || {}; + extend(this.stateChanges[sourceLayer][feature], newState); + if (this.deletedStates[sourceLayer] === null) { + this.deletedStates[sourceLayer] = {}; + for (const ft in this.state[sourceLayer]) { + if (ft !== feature) + this.deletedStates[sourceLayer][ft] = null; + } + } else { + const featureDeletionQueued = this.deletedStates[sourceLayer] && this.deletedStates[sourceLayer][feature] === null; + if (featureDeletionQueued) { + this.deletedStates[sourceLayer][feature] = {}; + for (const prop in this.state[sourceLayer][feature]) { + if (!newState[prop]) + this.deletedStates[sourceLayer][feature][prop] = null; + } + } else { + for (const key in newState) { + const deletionInQueue = this.deletedStates[sourceLayer] && this.deletedStates[sourceLayer][feature] && this.deletedStates[sourceLayer][feature][key] === null; + if (deletionInQueue) + delete this.deletedStates[sourceLayer][feature][key]; + } + } + } + } + removeFeatureState(sourceLayer, featureId, key) { + const sourceLayerDeleted = this.deletedStates[sourceLayer] === null; + if (sourceLayerDeleted) + return; + const feature = String(featureId); + this.deletedStates[sourceLayer] = this.deletedStates[sourceLayer] || {}; + if (key && featureId !== undefined) { + if (this.deletedStates[sourceLayer][feature] !== null) { + this.deletedStates[sourceLayer][feature] = this.deletedStates[sourceLayer][feature] || {}; + this.deletedStates[sourceLayer][feature][key] = null; + } + } else if (featureId !== undefined) { + const updateInQueue = this.stateChanges[sourceLayer] && this.stateChanges[sourceLayer][feature]; + if (updateInQueue) { + this.deletedStates[sourceLayer][feature] = {}; + for (key in this.stateChanges[sourceLayer][feature]) + this.deletedStates[sourceLayer][feature][key] = null; + } else { + this.deletedStates[sourceLayer][feature] = null; + } + } else { + this.deletedStates[sourceLayer] = null; + } + } + getState(sourceLayer, featureId) { + const feature = String(featureId); + const base = this.state[sourceLayer] || {}; + const changes = this.stateChanges[sourceLayer] || {}; + const reconciledState = extend({}, base[feature], changes[feature]); + if (this.deletedStates[sourceLayer] === null) + return {}; + else if (this.deletedStates[sourceLayer]) { + const featureDeletions = this.deletedStates[sourceLayer][featureId]; + if (featureDeletions === null) + return {}; + for (const prop in featureDeletions) + delete reconciledState[prop]; + } + return reconciledState; + } + initializeTileState(tile, painter) { + tile.setFeatureState(this.state, painter); + } + coalesceChanges(tiles, painter) { + const featuresChanged = {}; + for (const sourceLayer in this.stateChanges) { + this.state[sourceLayer] = this.state[sourceLayer] || {}; + const layerStates = {}; + for (const feature in this.stateChanges[sourceLayer]) { + if (!this.state[sourceLayer][feature]) + this.state[sourceLayer][feature] = {}; + extend(this.state[sourceLayer][feature], this.stateChanges[sourceLayer][feature]); + layerStates[feature] = this.state[sourceLayer][feature]; + } + featuresChanged[sourceLayer] = layerStates; + } + for (const sourceLayer in this.deletedStates) { + this.state[sourceLayer] = this.state[sourceLayer] || {}; + const layerStates = {}; + if (this.deletedStates[sourceLayer] === null) { + for (const ft in this.state[sourceLayer]) { + layerStates[ft] = {}; + this.state[sourceLayer][ft] = {}; + } + } else { + for (const feature in this.deletedStates[sourceLayer]) { + const deleteWholeFeatureState = this.deletedStates[sourceLayer][feature] === null; + if (deleteWholeFeatureState) + this.state[sourceLayer][feature] = {}; + else { + for (const key of Object.keys(this.deletedStates[sourceLayer][feature])) { + delete this.state[sourceLayer][feature][key]; + } + } + layerStates[feature] = this.state[sourceLayer][feature]; + } + } + featuresChanged[sourceLayer] = featuresChanged[sourceLayer] || {}; + extend(featuresChanged[sourceLayer], layerStates); + } + this.stateChanges = {}; + this.deletedStates = {}; + if (Object.keys(featuresChanged).length === 0) + return; + for (const id in tiles) { + const tile = tiles[id]; + tile.setFeatureState(featuresChanged, painter); + } + } +} + +class MipLevel { + constructor(size_) { + this.size = size_; + this.minimums = []; + this.maximums = []; + this.leaves = []; + } + getElevation(x, y) { + const idx = this.toIdx(x, y); + return { + min: this.minimums[idx], + max: this.maximums[idx] + }; + } + isLeaf(x, y) { + return this.leaves[this.toIdx(x, y)]; + } + toIdx(x, y) { + return y * this.size + x; + } +} +function aabbRayIntersect(min, max, pos, dir) { + let tMin = 0; + let tMax = Number.MAX_VALUE; + const epsilon = 1e-15; + for (let i = 0; i < 3; i++) { + if (Math.abs(dir[i]) < epsilon) { + if (pos[i] < min[i] || pos[i] > max[i]) + return null; + } else { + const ood = 1 / dir[i]; + let t1 = (min[i] - pos[i]) * ood; + let t2 = (max[i] - pos[i]) * ood; + if (t1 > t2) { + const temp = t1; + t1 = t2; + t2 = temp; + } + if (t1 > tMin) + tMin = t1; + if (t2 < tMax) + tMax = t2; + if (tMin > tMax) + return null; + } + } + return tMin; +} +function triangleRayIntersect(ax, ay, az, bx, by, bz, cx, cy, cz, pos, dir) { + const abX = bx - ax; + const abY = by - ay; + const abZ = bz - az; + const acX = cx - ax; + const acY = cy - ay; + const acZ = cz - az; + const pvecX = dir[1] * acZ - dir[2] * acY; + const pvecY = dir[2] * acX - dir[0] * acZ; + const pvecZ = dir[0] * acY - dir[1] * acX; + const det = abX * pvecX + abY * pvecY + abZ * pvecZ; + if (Math.abs(det) < 1e-15) + return null; + const invDet = 1 / det; + const tvecX = pos[0] - ax; + const tvecY = pos[1] - ay; + const tvecZ = pos[2] - az; + const u = (tvecX * pvecX + tvecY * pvecY + tvecZ * pvecZ) * invDet; + if (u < 0 || u > 1) + return null; + const qvecX = tvecY * abZ - tvecZ * abY; + const qvecY = tvecZ * abX - tvecX * abZ; + const qvecZ = tvecX * abY - tvecY * abX; + const v = (dir[0] * qvecX + dir[1] * qvecY + dir[2] * qvecZ) * invDet; + if (v < 0 || u + v > 1) + return null; + return (acX * qvecX + acY * qvecY + acZ * qvecZ) * invDet; +} +function frac(v, lo, hi) { + return (v - lo) / (hi - lo); +} +function decodeBounds(x, y, depth, boundsMinx, boundsMiny, boundsMaxx, boundsMaxy, outMin, outMax) { + const scale = 1 << depth; + const rangex = boundsMaxx - boundsMinx; + const rangey = boundsMaxy - boundsMiny; + const minX = (x + 0) / scale * rangex + boundsMinx; + const maxX = (x + 1) / scale * rangex + boundsMinx; + const minY = (y + 0) / scale * rangey + boundsMiny; + const maxY = (y + 1) / scale * rangey + boundsMiny; + outMin[0] = minX; + outMin[1] = minY; + outMax[0] = maxX; + outMax[1] = maxY; +} +const aabbSkirtPadding = 100; +class DemMinMaxQuadTree { + constructor(dem_) { + this.maximums = []; + this.minimums = []; + this.leaves = []; + this.childOffsets = []; + this.nodeCount = 0; + this.dem = dem_; + this._siblingOffset = [ + [ + 0, + 0 + ], + [ + 1, + 0 + ], + [ + 0, + 1 + ], + [ + 1, + 1 + ] + ]; + if (!this.dem) + return; + const mips = buildDemMipmap(this.dem); + const maxLvl = mips.length - 1; + const rootMip = mips[maxLvl]; + const min = rootMip.minimums; + const max = rootMip.maximums; + const leaves = rootMip.leaves; + this._addNode(min[0], max[0], leaves[0]); + this._construct(mips, 0, 0, maxLvl, 0); + } + raycastRoot(minx, miny, maxx, maxy, p, d, exaggeration = 1) { + const min = [ + minx, + miny, + -aabbSkirtPadding + ]; + const max = [ + maxx, + maxy, + this.maximums[0] * exaggeration + ]; + return aabbRayIntersect(min, max, p, d); + } + raycast(rootMinx, rootMiny, rootMaxx, rootMaxy, p, d, exaggeration = 1) { + if (!this.nodeCount) + return null; + const t = this.raycastRoot(rootMinx, rootMiny, rootMaxx, rootMaxy, p, d, exaggeration); + if (t == null) + return null; + const tHits = []; + const sortedHits = []; + const boundsMin = []; + const boundsMax = []; + const stack = [{ + idx: 0, + t, + nodex: 0, + nodey: 0, + depth: 0 + }]; + while (stack.length > 0) { + const {idx, t, nodex, nodey, depth} = stack.pop(); + if (this.leaves[idx]) { + decodeBounds(nodex, nodey, depth, rootMinx, rootMiny, rootMaxx, rootMaxy, boundsMin, boundsMax); + const scale = 1 << depth; + const minxUv = (nodex + 0) / scale; + const maxxUv = (nodex + 1) / scale; + const minyUv = (nodey + 0) / scale; + const maxyUv = (nodey + 1) / scale; + const az = sampleElevation(minxUv, minyUv, this.dem) * exaggeration; + const bz = sampleElevation(maxxUv, minyUv, this.dem) * exaggeration; + const cz = sampleElevation(maxxUv, maxyUv, this.dem) * exaggeration; + const dz = sampleElevation(minxUv, maxyUv, this.dem) * exaggeration; + const t0 = triangleRayIntersect(boundsMin[0], boundsMin[1], az, boundsMax[0], boundsMin[1], bz, boundsMax[0], boundsMax[1], cz, p, d); + const t1 = triangleRayIntersect(boundsMax[0], boundsMax[1], cz, boundsMin[0], boundsMax[1], dz, boundsMin[0], boundsMin[1], az, p, d); + const tMin = Math.min(t0 !== null ? t0 : Number.MAX_VALUE, t1 !== null ? t1 : Number.MAX_VALUE); + if (tMin === Number.MAX_VALUE) { + const hitPos = scaleAndAdd([], p, d, t); + const fracx = frac(hitPos[0], boundsMin[0], boundsMax[0]); + const fracy = frac(hitPos[1], boundsMin[1], boundsMax[1]); + if (bilinearLerp(az, bz, dz, cz, fracx, fracy) >= hitPos[2]) + return t; + } else { + return tMin; + } + continue; + } + let hitCount = 0; + for (let i = 0; i < this._siblingOffset.length; i++) { + const childNodeX = (nodex << 1) + this._siblingOffset[i][0]; + const childNodeY = (nodey << 1) + this._siblingOffset[i][1]; + decodeBounds(childNodeX, childNodeY, depth + 1, rootMinx, rootMiny, rootMaxx, rootMaxy, boundsMin, boundsMax); + boundsMin[2] = -aabbSkirtPadding; + boundsMax[2] = this.maximums[this.childOffsets[idx] + i] * exaggeration; + const result = aabbRayIntersect(boundsMin, boundsMax, p, d); + if (result != null) { + const tHit = result; + tHits[i] = tHit; + let added = false; + for (let j = 0; j < hitCount && !added; j++) { + if (tHit >= tHits[sortedHits[j]]) { + sortedHits.splice(j, 0, i); + added = true; + } + } + if (!added) + sortedHits[hitCount] = i; + hitCount++; + } + } + for (let i = 0; i < hitCount; i++) { + const hitIdx = sortedHits[i]; + stack.push({ + idx: this.childOffsets[idx] + hitIdx, + t: tHits[hitIdx], + nodex: (nodex << 1) + this._siblingOffset[hitIdx][0], + nodey: (nodey << 1) + this._siblingOffset[hitIdx][1], + depth: depth + 1 + }); + } + } + return null; + } + _addNode(min, max, leaf) { + this.minimums.push(min); + this.maximums.push(max); + this.leaves.push(leaf); + this.childOffsets.push(0); + return this.nodeCount++; + } + _construct(mips, x, y, lvl, parentIdx) { + if (mips[lvl].isLeaf(x, y) === 1) { + return; + } + if (!this.childOffsets[parentIdx]) + this.childOffsets[parentIdx] = this.nodeCount; + const childLvl = lvl - 1; + const childMip = mips[childLvl]; + let leafMask = 0; + let firstNodeIdx; + for (let i = 0; i < this._siblingOffset.length; i++) { + const childX = x * 2 + this._siblingOffset[i][0]; + const childY = y * 2 + this._siblingOffset[i][1]; + const elevation = childMip.getElevation(childX, childY); + const leaf = childMip.isLeaf(childX, childY); + const nodeIdx = this._addNode(elevation.min, elevation.max, leaf); + if (leaf) + leafMask |= 1 << i; + if (!firstNodeIdx) + firstNodeIdx = nodeIdx; + } + for (let i = 0; i < this._siblingOffset.length; i++) { + if (!(leafMask & 1 << i)) { + this._construct(mips, x * 2 + this._siblingOffset[i][0], y * 2 + this._siblingOffset[i][1], childLvl, firstNodeIdx + i); + } + } + } +} +function bilinearLerp(p00, p10, p01, p11, x, y) { + return number(number(p00, p01, y), number(p10, p11, y), x); +} +function sampleElevation(fx, fy, dem) { + const demSize = dem.dim; + const x = clamp(fx * demSize - 0.5, 0, demSize - 1); + const y = clamp(fy * demSize - 0.5, 0, demSize - 1); + const ixMin = Math.floor(x); + const iyMin = Math.floor(y); + const ixMax = Math.min(ixMin + 1, demSize - 1); + const iyMax = Math.min(iyMin + 1, demSize - 1); + const e00 = dem.get(ixMin, iyMin); + const e10 = dem.get(ixMax, iyMin); + const e01 = dem.get(ixMin, iyMax); + const e11 = dem.get(ixMax, iyMax); + return bilinearLerp(e00, e10, e01, e11, x - ixMin, y - iyMin); +} +function buildDemMipmap(dem) { + const demSize = dem.dim; + const elevationDiffThreshold = 5; + const texelSizeOfMip0 = 8; + const levelCount = Math.ceil(Math.log2(demSize / texelSizeOfMip0)); + const mips = []; + let blockCount = Math.ceil(Math.pow(2, levelCount)); + const blockSize = 1 / blockCount; + const blockSamples = (x, y, size, exclusive, outBounds) => { + const padding = exclusive ? 1 : 0; + const minx = x * size; + const maxx = (x + 1) * size - padding; + const miny = y * size; + const maxy = (y + 1) * size - padding; + outBounds[0] = minx; + outBounds[1] = miny; + outBounds[2] = maxx; + outBounds[3] = maxy; + }; + let mip = new MipLevel(blockCount); + const blockBounds = []; + for (let idx = 0; idx < blockCount * blockCount; idx++) { + const y = Math.floor(idx / blockCount); + const x = idx % blockCount; + blockSamples(x, y, blockSize, false, blockBounds); + const e0 = sampleElevation(blockBounds[0], blockBounds[1], dem); + const e1 = sampleElevation(blockBounds[2], blockBounds[1], dem); + const e2 = sampleElevation(blockBounds[2], blockBounds[3], dem); + const e3 = sampleElevation(blockBounds[0], blockBounds[3], dem); + mip.minimums.push(Math.min(e0, e1, e2, e3)); + mip.maximums.push(Math.max(e0, e1, e2, e3)); + mip.leaves.push(1); + } + mips.push(mip); + for (blockCount /= 2; blockCount >= 1; blockCount /= 2) { + const prevMip = mips[mips.length - 1]; + mip = new MipLevel(blockCount); + for (let idx = 0; idx < blockCount * blockCount; idx++) { + const y = Math.floor(idx / blockCount); + const x = idx % blockCount; + blockSamples(x, y, 2, true, blockBounds); + const e0 = prevMip.getElevation(blockBounds[0], blockBounds[1]); + const e1 = prevMip.getElevation(blockBounds[2], blockBounds[1]); + const e2 = prevMip.getElevation(blockBounds[2], blockBounds[3]); + const e3 = prevMip.getElevation(blockBounds[0], blockBounds[3]); + const l0 = prevMip.isLeaf(blockBounds[0], blockBounds[1]); + const l1 = prevMip.isLeaf(blockBounds[2], blockBounds[1]); + const l2 = prevMip.isLeaf(blockBounds[2], blockBounds[3]); + const l3 = prevMip.isLeaf(blockBounds[0], blockBounds[3]); + const minElevation = Math.min(e0.min, e1.min, e2.min, e3.min); + const maxElevation = Math.max(e0.max, e1.max, e2.max, e3.max); + const canConcatenate = l0 && l1 && l2 && l3; + mip.maximums.push(maxElevation); + mip.minimums.push(minElevation); + if (maxElevation - minElevation <= elevationDiffThreshold && canConcatenate) { + mip.leaves.push(1); + } else { + mip.leaves.push(0); + } + } + mips.push(mip); + } + return mips; +} + +const unpackVectors = { + mapbox: [ + 6553.6, + 25.6, + 0.1, + 10000 + ], + terrarium: [ + 256, + 1, + 1 / 256, + 32768 + ] +}; +class DEMData { + get tree() { + if (!this._tree) + this._buildQuadTree(); + return this._tree; + } + constructor(uid, data, encoding, borderReady = false, buildQuadTree = false) { + this.uid = uid; + if (data.height !== data.width) + throw new RangeError('DEM tiles must be square'); + if (encoding && encoding !== 'mapbox' && encoding !== 'terrarium') + return warnOnce(`"${ encoding }" is not a valid encoding type. Valid types include "mapbox" and "terrarium".`); + this.stride = data.height; + const dim = this.dim = data.height - 2; + this.data = new Uint32Array(data.data.buffer); + this.encoding = encoding || 'mapbox'; + this.borderReady = borderReady; + if (borderReady) + return; + for (let x = 0; x < dim; x++) { + this.data[this._idx(-1, x)] = this.data[this._idx(0, x)]; + this.data[this._idx(dim, x)] = this.data[this._idx(dim - 1, x)]; + this.data[this._idx(x, -1)] = this.data[this._idx(x, 0)]; + this.data[this._idx(x, dim)] = this.data[this._idx(x, dim - 1)]; + } + this.data[this._idx(-1, -1)] = this.data[this._idx(0, 0)]; + this.data[this._idx(dim, -1)] = this.data[this._idx(dim - 1, 0)]; + this.data[this._idx(-1, dim)] = this.data[this._idx(0, dim - 1)]; + this.data[this._idx(dim, dim)] = this.data[this._idx(dim - 1, dim - 1)]; + if (buildQuadTree) + this._buildQuadTree(); + } + _buildQuadTree() { + this._tree = new DemMinMaxQuadTree(this); + } + get(x, y, clampToEdge = false) { + const pixels = new Uint8Array(this.data.buffer); + if (clampToEdge) { + x = clamp(x, -1, this.dim); + y = clamp(y, -1, this.dim); + } + const index = this._idx(x, y) * 4; + const unpack = this.encoding === 'terrarium' ? this._unpackTerrarium : this._unpackMapbox; + return unpack(pixels[index], pixels[index + 1], pixels[index + 2]); + } + static getUnpackVector(encoding) { + return unpackVectors[encoding]; + } + get unpackVector() { + return unpackVectors[this.encoding]; + } + _idx(x, y) { + if (x < -1 || x >= this.dim + 1 || y < -1 || y >= this.dim + 1) + throw new RangeError('out of range source coordinates for DEM data'); + return (y + 1) * this.stride + (x + 1); + } + _unpackMapbox(r, g, b) { + return (r * 256 * 256 + g * 256 + b) / 10 - 10000; + } + _unpackTerrarium(r, g, b) { + return r * 256 + g + b / 256 - 32768; + } + static pack(altitude, encoding) { + const color = [ + 0, + 0, + 0, + 0 + ]; + const vector = DEMData.getUnpackVector(encoding); + let v = Math.floor((altitude + vector[3]) / vector[2]); + color[2] = v % 256; + v = Math.floor(v / 256); + color[1] = v % 256; + v = Math.floor(v / 256); + color[0] = v; + return color; + } + getPixels() { + return new RGBAImage({ + width: this.stride, + height: this.stride + }, new Uint8Array(this.data.buffer)); + } + backfillBorder(borderTile, dx, dy) { + if (this.dim !== borderTile.dim) + throw new Error('dem dimension mismatch'); + let xMin = dx * this.dim, xMax = dx * this.dim + this.dim, yMin = dy * this.dim, yMax = dy * this.dim + this.dim; + switch (dx) { + case -1: + xMin = xMax - 1; + break; + case 1: + xMax = xMin + 1; + break; + } + switch (dy) { + case -1: + yMin = yMax - 1; + break; + case 1: + yMax = yMin + 1; + break; + } + const ox = -dx * this.dim; + const oy = -dy * this.dim; + for (let y = yMin; y < yMax; y++) { + for (let x = xMin; x < xMax; x++) { + this.data[this._idx(x, y)] = borderTile.data[this._idx(x + ox, y + oy)]; + } + } + } + onDeserialize() { + if (this._tree) + this._tree.dem = this; + } +} +register('DEMData', DEMData); +register('DemMinMaxQuadTree', DemMinMaxQuadTree, { omit: ['dem'] }); + +class TileCache { + constructor(max, onRemove) { + this.max = max; + this.onRemove = onRemove; + this.reset(); + } + reset() { + for (const key in this.data) { + for (const removedData of this.data[key]) { + if (removedData.timeout) + clearTimeout(removedData.timeout); + this.onRemove(removedData.value); + } + } + this.data = {}; + this.order = []; + return this; + } + add(tileID, data, expiryTimeout) { + const key = tileID.wrapped().key; + if (this.data[key] === undefined) { + this.data[key] = []; + } + const dataWrapper = { + value: data, + timeout: undefined + }; + if (expiryTimeout !== undefined) { + dataWrapper.timeout = setTimeout(() => { + this.remove(tileID, dataWrapper); + }, expiryTimeout); + } + this.data[key].push(dataWrapper); + this.order.push(key); + if (this.order.length > this.max) { + const removedData = this._getAndRemoveByKey(this.order[0]); + if (removedData) + this.onRemove(removedData); + } + return this; + } + has(tileID) { + return tileID.wrapped().key in this.data; + } + getAndRemove(tileID) { + if (!this.has(tileID)) { + return null; + } + return this._getAndRemoveByKey(tileID.wrapped().key); + } + _getAndRemoveByKey(key) { + const data = this.data[key].shift(); + if (data.timeout) + clearTimeout(data.timeout); + if (this.data[key].length === 0) { + delete this.data[key]; + } + this.order.splice(this.order.indexOf(key), 1); + return data.value; + } + getByKey(key) { + const data = this.data[key]; + return data ? data[0].value : null; + } + get(tileID) { + if (!this.has(tileID)) { + return null; + } + const data = this.data[tileID.wrapped().key][0]; + return data.value; + } + remove(tileID, value) { + if (!this.has(tileID)) { + return this; + } + const key = tileID.wrapped().key; + const dataIndex = value === undefined ? 0 : this.data[key].indexOf(value); + const data = this.data[key][dataIndex]; + this.data[key].splice(dataIndex, 1); + if (data.timeout) + clearTimeout(data.timeout); + if (this.data[key].length === 0) { + delete this.data[key]; + } + this.onRemove(data.value); + this.order.splice(this.order.indexOf(key), 1); + return this; + } + setMaxSize(max) { + this.max = max; + while (this.order.length > this.max) { + const removedData = this._getAndRemoveByKey(this.order[0]); + if (removedData) + this.onRemove(removedData); + } + return this; + } + filter(filterFn) { + const removed = []; + for (const key in this.data) { + for (const entry of this.data[key]) { + if (!filterFn(entry.value)) { + removed.push(entry); + } + } + } + for (const r of removed) { + this.remove(r.value.tileID, r); + } + } +} + +class IndexBuffer { + constructor(context, array, dynamicDraw) { + this.context = context; + const gl = context.gl; + this.buffer = gl.createBuffer(); + this.dynamicDraw = Boolean(dynamicDraw); + this.context.unbindVAO(); + context.bindElementBuffer.set(this.buffer); + gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, array.arrayBuffer, this.dynamicDraw ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW); + if (!this.dynamicDraw) { + delete array.arrayBuffer; + } + } + bind() { + this.context.bindElementBuffer.set(this.buffer); + } + updateData(array) { + const gl = this.context.gl; + this.context.unbindVAO(); + this.bind(); + gl.bufferSubData(gl.ELEMENT_ARRAY_BUFFER, 0, array.arrayBuffer); + } + destroy() { + const gl = this.context.gl; + if (this.buffer) { + gl.deleteBuffer(this.buffer); + delete this.buffer; + } + } +} + +const AttributeType = { + Int8: 'BYTE', + Uint8: 'UNSIGNED_BYTE', + Int16: 'SHORT', + Uint16: 'UNSIGNED_SHORT', + Int32: 'INT', + Uint32: 'UNSIGNED_INT', + Float32: 'FLOAT' +}; +class VertexBuffer { + constructor(context, array, attributes, dynamicDraw) { + this.length = array.length; + this.attributes = attributes; + this.itemSize = array.bytesPerElement; + this.dynamicDraw = dynamicDraw; + this.context = context; + const gl = context.gl; + this.buffer = gl.createBuffer(); + context.bindVertexBuffer.set(this.buffer); + gl.bufferData(gl.ARRAY_BUFFER, array.arrayBuffer, this.dynamicDraw ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW); + if (!this.dynamicDraw) { + delete array.arrayBuffer; + } + } + bind() { + this.context.bindVertexBuffer.set(this.buffer); + } + updateData(array) { + const gl = this.context.gl; + this.bind(); + gl.bufferSubData(gl.ARRAY_BUFFER, 0, array.arrayBuffer); + } + enableAttributes(gl, program) { + for (let j = 0; j < this.attributes.length; j++) { + const member = this.attributes[j]; + const attribIndex = program.attributes[member.name]; + if (attribIndex !== undefined) { + gl.enableVertexAttribArray(attribIndex); + } + } + } + setVertexAttribPointers(gl, program, vertexOffset) { + for (let j = 0; j < this.attributes.length; j++) { + const member = this.attributes[j]; + const attribIndex = program.attributes[member.name]; + if (attribIndex !== undefined) { + gl.vertexAttribPointer(attribIndex, member.components, gl[AttributeType[member.type]], false, this.itemSize, member.offset + this.itemSize * (vertexOffset || 0)); + } + } + } + destroy() { + const gl = this.context.gl; + if (this.buffer) { + gl.deleteBuffer(this.buffer); + delete this.buffer; + } + } +} + +class BaseValue { + constructor(context) { + this.gl = context.gl; + this.default = this.getDefault(); + this.current = this.default; + this.dirty = false; + } + get() { + return this.current; + } + set(value) { + } + getDefault() { + return this.default; + } + setDefault() { + this.set(this.default); + } +} +class ClearColor extends BaseValue { + getDefault() { + return Color.transparent; + } + set(v) { + const c = this.current; + if (v.r === c.r && v.g === c.g && v.b === c.b && v.a === c.a && !this.dirty) + return; + this.gl.clearColor(v.r, v.g, v.b, v.a); + this.current = v; + this.dirty = false; + } +} +class ClearDepth extends BaseValue { + getDefault() { + return 1; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.clearDepth(v); + this.current = v; + this.dirty = false; + } +} +class ClearStencil extends BaseValue { + getDefault() { + return 0; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.clearStencil(v); + this.current = v; + this.dirty = false; + } +} +class ColorMask extends BaseValue { + getDefault() { + return [ + true, + true, + true, + true + ]; + } + set(v) { + const c = this.current; + if (v[0] === c[0] && v[1] === c[1] && v[2] === c[2] && v[3] === c[3] && !this.dirty) + return; + this.gl.colorMask(v[0], v[1], v[2], v[3]); + this.current = v; + this.dirty = false; + } +} +class DepthMask extends BaseValue { + getDefault() { + return true; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.depthMask(v); + this.current = v; + this.dirty = false; + } +} +class StencilMask extends BaseValue { + getDefault() { + return 255; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.stencilMask(v); + this.current = v; + this.dirty = false; + } +} +class StencilFunc extends BaseValue { + getDefault() { + return { + func: this.gl.ALWAYS, + ref: 0, + mask: 255 + }; + } + set(v) { + const c = this.current; + if (v.func === c.func && v.ref === c.ref && v.mask === c.mask && !this.dirty) + return; + this.gl.stencilFunc(v.func, v.ref, v.mask); + this.current = v; + this.dirty = false; + } +} +class StencilOp extends BaseValue { + getDefault() { + const gl = this.gl; + return [ + gl.KEEP, + gl.KEEP, + gl.KEEP + ]; + } + set(v) { + const c = this.current; + if (v[0] === c[0] && v[1] === c[1] && v[2] === c[2] && !this.dirty) + return; + this.gl.stencilOp(v[0], v[1], v[2]); + this.current = v; + this.dirty = false; + } +} +class StencilTest extends BaseValue { + getDefault() { + return false; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + if (v) { + gl.enable(gl.STENCIL_TEST); + } else { + gl.disable(gl.STENCIL_TEST); + } + this.current = v; + this.dirty = false; + } +} +class DepthRange extends BaseValue { + getDefault() { + return [ + 0, + 1 + ]; + } + set(v) { + const c = this.current; + if (v[0] === c[0] && v[1] === c[1] && !this.dirty) + return; + this.gl.depthRange(v[0], v[1]); + this.current = v; + this.dirty = false; + } +} +class DepthTest extends BaseValue { + getDefault() { + return false; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + if (v) { + gl.enable(gl.DEPTH_TEST); + } else { + gl.disable(gl.DEPTH_TEST); + } + this.current = v; + this.dirty = false; + } +} +class DepthFunc extends BaseValue { + getDefault() { + return this.gl.LESS; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.depthFunc(v); + this.current = v; + this.dirty = false; + } +} +class Blend extends BaseValue { + getDefault() { + return false; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + if (v) { + gl.enable(gl.BLEND); + } else { + gl.disable(gl.BLEND); + } + this.current = v; + this.dirty = false; + } +} +class BlendFunc extends BaseValue { + getDefault() { + const gl = this.gl; + return [ + gl.ONE, + gl.ZERO + ]; + } + set(v) { + const c = this.current; + if (v[0] === c[0] && v[1] === c[1] && !this.dirty) + return; + this.gl.blendFunc(v[0], v[1]); + this.current = v; + this.dirty = false; + } +} +class BlendColor extends BaseValue { + getDefault() { + return Color.transparent; + } + set(v) { + const c = this.current; + if (v.r === c.r && v.g === c.g && v.b === c.b && v.a === c.a && !this.dirty) + return; + this.gl.blendColor(v.r, v.g, v.b, v.a); + this.current = v; + this.dirty = false; + } +} +class BlendEquation extends BaseValue { + getDefault() { + return this.gl.FUNC_ADD; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.blendEquation(v); + this.current = v; + this.dirty = false; + } +} +class CullFace extends BaseValue { + getDefault() { + return false; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + if (v) { + gl.enable(gl.CULL_FACE); + } else { + gl.disable(gl.CULL_FACE); + } + this.current = v; + this.dirty = false; + } +} +class CullFaceSide extends BaseValue { + getDefault() { + return this.gl.BACK; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.cullFace(v); + this.current = v; + this.dirty = false; + } +} +class FrontFace extends BaseValue { + getDefault() { + return this.gl.CCW; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.frontFace(v); + this.current = v; + this.dirty = false; + } +} +class Program extends BaseValue { + getDefault() { + return null; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.useProgram(v); + this.current = v; + this.dirty = false; + } +} +class ActiveTextureUnit extends BaseValue { + getDefault() { + return this.gl.TEXTURE0; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.gl.activeTexture(v); + this.current = v; + this.dirty = false; + } +} +class Viewport extends BaseValue { + getDefault() { + const gl = this.gl; + return [ + 0, + 0, + gl.drawingBufferWidth, + gl.drawingBufferHeight + ]; + } + set(v) { + const c = this.current; + if (v[0] === c[0] && v[1] === c[1] && v[2] === c[2] && v[3] === c[3] && !this.dirty) + return; + this.gl.viewport(v[0], v[1], v[2], v[3]); + this.current = v; + this.dirty = false; + } +} +class BindFramebuffer extends BaseValue { + getDefault() { + return null; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + gl.bindFramebuffer(gl.FRAMEBUFFER, v); + this.current = v; + this.dirty = false; + } +} +class BindRenderbuffer extends BaseValue { + getDefault() { + return null; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + gl.bindRenderbuffer(gl.RENDERBUFFER, v); + this.current = v; + this.dirty = false; + } +} +class BindTexture extends BaseValue { + getDefault() { + return null; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + gl.bindTexture(gl.TEXTURE_2D, v); + this.current = v; + this.dirty = false; + } +} +class BindVertexBuffer extends BaseValue { + getDefault() { + return null; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + gl.bindBuffer(gl.ARRAY_BUFFER, v); + this.current = v; + this.dirty = false; + } +} +class BindElementBuffer extends BaseValue { + getDefault() { + return null; + } + set(v) { + const gl = this.gl; + gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, v); + this.current = v; + this.dirty = false; + } +} +class BindVertexArrayOES extends BaseValue { + constructor(context) { + super(context); + this.vao = context.extVertexArrayObject; + } + getDefault() { + return null; + } + set(v) { + if (!this.vao || v === this.current && !this.dirty) + return; + this.vao.bindVertexArrayOES(v); + this.current = v; + this.dirty = false; + } +} +class PixelStoreUnpack extends BaseValue { + getDefault() { + return 4; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + gl.pixelStorei(gl.UNPACK_ALIGNMENT, v); + this.current = v; + this.dirty = false; + } +} +class PixelStoreUnpackPremultiplyAlpha extends BaseValue { + getDefault() { + return false; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, v); + this.current = v; + this.dirty = false; + } +} +class PixelStoreUnpackFlipY extends BaseValue { + getDefault() { + return false; + } + set(v) { + if (v === this.current && !this.dirty) + return; + const gl = this.gl; + gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, v); + this.current = v; + this.dirty = false; + } +} +class FramebufferAttachment extends BaseValue { + constructor(context, parent) { + super(context); + this.context = context; + this.parent = parent; + } + getDefault() { + return null; + } +} +class ColorAttachment extends FramebufferAttachment { + setDirty() { + this.dirty = true; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.context.bindFramebuffer.set(this.parent); + const gl = this.gl; + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, v, 0); + this.current = v; + this.dirty = false; + } +} +class DepthAttachment extends FramebufferAttachment { + attachment() { + return this.gl.DEPTH_ATTACHMENT; + } + set(v) { + if (v === this.current && !this.dirty) + return; + this.context.bindFramebuffer.set(this.parent); + const gl = this.gl; + gl.framebufferRenderbuffer(gl.FRAMEBUFFER, this.attachment(), gl.RENDERBUFFER, v); + this.current = v; + this.dirty = false; + } +} +class DepthStencilAttachment extends DepthAttachment { + attachment() { + return this.gl.DEPTH_STENCIL_ATTACHMENT; + } +} + +class Framebuffer { + constructor(context, width, height, hasDepth) { + this.context = context; + this.width = width; + this.height = height; + const gl = context.gl; + const fbo = this.framebuffer = gl.createFramebuffer(); + this.colorAttachment = new ColorAttachment(context, fbo); + if (hasDepth) { + this.depthAttachment = new DepthAttachment(context, fbo); + } + } + destroy() { + const gl = this.context.gl; + const texture = this.colorAttachment.get(); + if (texture) + gl.deleteTexture(texture); + if (this.depthAttachment) { + const renderbuffer = this.depthAttachment.get(); + if (renderbuffer) + gl.deleteRenderbuffer(renderbuffer); + } + gl.deleteFramebuffer(this.framebuffer); + } +} + +const ALWAYS = 519; +class DepthMode { + constructor(depthFunc, depthMask, depthRange) { + this.func = depthFunc; + this.mask = depthMask; + this.range = depthRange; + } +} +DepthMode.ReadOnly = false; +DepthMode.ReadWrite = true; +DepthMode.disabled = new DepthMode(ALWAYS, DepthMode.ReadOnly, [ + 0, + 1 +]); + +const ALWAYS$1 = 519; +const KEEP = 7680; +class StencilMode { + constructor(test, ref, mask, fail, depthFail, pass) { + this.test = test; + this.ref = ref; + this.mask = mask; + this.fail = fail; + this.depthFail = depthFail; + this.pass = pass; + } +} +StencilMode.disabled = new StencilMode({ + func: ALWAYS$1, + mask: 0 +}, 0, 0, KEEP, KEEP, KEEP); + +const ZERO = 0; +const ONE = 1; +const ONE_MINUS_SRC_ALPHA = 771; +class ColorMode { + constructor(blendFunction, blendColor, mask) { + this.blendFunction = blendFunction; + this.blendColor = blendColor; + this.mask = mask; + } +} +ColorMode.Replace = [ + ONE, + ZERO +]; +ColorMode.disabled = new ColorMode(ColorMode.Replace, Color.transparent, [ + false, + false, + false, + false +]); +ColorMode.unblended = new ColorMode(ColorMode.Replace, Color.transparent, [ + true, + true, + true, + true +]); +ColorMode.alphaBlended = new ColorMode([ + ONE, + ONE_MINUS_SRC_ALPHA +], Color.transparent, [ + true, + true, + true, + true +]); + +const BACK = 1029; +const FRONT = 1028; +const CCW = 2305; +const CW = 2304; +class CullFaceMode { + constructor(enable, mode, frontFace) { + this.enable = enable; + this.mode = mode; + this.frontFace = frontFace; + } +} +CullFaceMode.disabled = new CullFaceMode(false, BACK, CCW); +CullFaceMode.backCCW = new CullFaceMode(true, BACK, CCW); +CullFaceMode.backCW = new CullFaceMode(true, BACK, CW); +CullFaceMode.frontCW = new CullFaceMode(true, FRONT, CW); +CullFaceMode.frontCCW = new CullFaceMode(true, FRONT, CCW); + +class Context { + constructor(gl) { + this.gl = gl; + this.extVertexArrayObject = this.gl.getExtension('OES_vertex_array_object'); + this.clearColor = new ClearColor(this); + this.clearDepth = new ClearDepth(this); + this.clearStencil = new ClearStencil(this); + this.colorMask = new ColorMask(this); + this.depthMask = new DepthMask(this); + this.stencilMask = new StencilMask(this); + this.stencilFunc = new StencilFunc(this); + this.stencilOp = new StencilOp(this); + this.stencilTest = new StencilTest(this); + this.depthRange = new DepthRange(this); + this.depthTest = new DepthTest(this); + this.depthFunc = new DepthFunc(this); + this.blend = new Blend(this); + this.blendFunc = new BlendFunc(this); + this.blendColor = new BlendColor(this); + this.blendEquation = new BlendEquation(this); + this.cullFace = new CullFace(this); + this.cullFaceSide = new CullFaceSide(this); + this.frontFace = new FrontFace(this); + this.program = new Program(this); + this.activeTexture = new ActiveTextureUnit(this); + this.viewport = new Viewport(this); + this.bindFramebuffer = new BindFramebuffer(this); + this.bindRenderbuffer = new BindRenderbuffer(this); + this.bindTexture = new BindTexture(this); + this.bindVertexBuffer = new BindVertexBuffer(this); + this.bindElementBuffer = new BindElementBuffer(this); + this.bindVertexArrayOES = this.extVertexArrayObject && new BindVertexArrayOES(this); + this.pixelStoreUnpack = new PixelStoreUnpack(this); + this.pixelStoreUnpackPremultiplyAlpha = new PixelStoreUnpackPremultiplyAlpha(this); + this.pixelStoreUnpackFlipY = new PixelStoreUnpackFlipY(this); + this.extTextureFilterAnisotropic = gl.getExtension('EXT_texture_filter_anisotropic') || gl.getExtension('MOZ_EXT_texture_filter_anisotropic') || gl.getExtension('WEBKIT_EXT_texture_filter_anisotropic'); + if (this.extTextureFilterAnisotropic) { + this.extTextureFilterAnisotropicMax = gl.getParameter(this.extTextureFilterAnisotropic.MAX_TEXTURE_MAX_ANISOTROPY_EXT); + } + this.extTextureFilterAnisotropicForceOff = false; + this.extTextureHalfFloat = gl.getExtension('OES_texture_half_float'); + if (this.extTextureHalfFloat) { + gl.getExtension('OES_texture_half_float_linear'); + this.extRenderToTextureHalfFloat = gl.getExtension('EXT_color_buffer_half_float'); + } + this.extTimerQuery = gl.getExtension('EXT_disjoint_timer_query'); + this.maxTextureSize = gl.getParameter(gl.MAX_TEXTURE_SIZE); + } + setDefault() { + this.unbindVAO(); + this.clearColor.setDefault(); + this.clearDepth.setDefault(); + this.clearStencil.setDefault(); + this.colorMask.setDefault(); + this.depthMask.setDefault(); + this.stencilMask.setDefault(); + this.stencilFunc.setDefault(); + this.stencilOp.setDefault(); + this.stencilTest.setDefault(); + this.depthRange.setDefault(); + this.depthTest.setDefault(); + this.depthFunc.setDefault(); + this.blend.setDefault(); + this.blendFunc.setDefault(); + this.blendColor.setDefault(); + this.blendEquation.setDefault(); + this.cullFace.setDefault(); + this.cullFaceSide.setDefault(); + this.frontFace.setDefault(); + this.program.setDefault(); + this.activeTexture.setDefault(); + this.bindFramebuffer.setDefault(); + this.pixelStoreUnpack.setDefault(); + this.pixelStoreUnpackPremultiplyAlpha.setDefault(); + this.pixelStoreUnpackFlipY.setDefault(); + } + setDirty() { + this.clearColor.dirty = true; + this.clearDepth.dirty = true; + this.clearStencil.dirty = true; + this.colorMask.dirty = true; + this.depthMask.dirty = true; + this.stencilMask.dirty = true; + this.stencilFunc.dirty = true; + this.stencilOp.dirty = true; + this.stencilTest.dirty = true; + this.depthRange.dirty = true; + this.depthTest.dirty = true; + this.depthFunc.dirty = true; + this.blend.dirty = true; + this.blendFunc.dirty = true; + this.blendColor.dirty = true; + this.blendEquation.dirty = true; + this.cullFace.dirty = true; + this.cullFaceSide.dirty = true; + this.frontFace.dirty = true; + this.program.dirty = true; + this.activeTexture.dirty = true; + this.viewport.dirty = true; + this.bindFramebuffer.dirty = true; + this.bindRenderbuffer.dirty = true; + this.bindTexture.dirty = true; + this.bindVertexBuffer.dirty = true; + this.bindElementBuffer.dirty = true; + if (this.extVertexArrayObject) { + this.bindVertexArrayOES.dirty = true; + } + this.pixelStoreUnpack.dirty = true; + this.pixelStoreUnpackPremultiplyAlpha.dirty = true; + this.pixelStoreUnpackFlipY.dirty = true; + } + createIndexBuffer(array, dynamicDraw) { + return new IndexBuffer(this, array, dynamicDraw); + } + createVertexBuffer(array, attributes, dynamicDraw) { + return new VertexBuffer(this, array, attributes, dynamicDraw); + } + createRenderbuffer(storageFormat, width, height) { + const gl = this.gl; + const rbo = gl.createRenderbuffer(); + this.bindRenderbuffer.set(rbo); + gl.renderbufferStorage(gl.RENDERBUFFER, storageFormat, width, height); + this.bindRenderbuffer.set(null); + return rbo; + } + createFramebuffer(width, height, hasDepth) { + return new Framebuffer(this, width, height, hasDepth); + } + clear({color, depth, stencil}) { + const gl = this.gl; + let mask = 0; + if (color) { + mask |= gl.COLOR_BUFFER_BIT; + this.clearColor.set(color); + this.colorMask.set([ + true, + true, + true, + true + ]); + } + if (typeof depth !== 'undefined') { + mask |= gl.DEPTH_BUFFER_BIT; + this.depthRange.set([ + 0, + 1 + ]); + this.clearDepth.set(depth); + this.depthMask.set(true); + } + if (typeof stencil !== 'undefined') { + mask |= gl.STENCIL_BUFFER_BIT; + this.clearStencil.set(stencil); + this.stencilMask.set(255); + } + gl.clear(mask); + } + setCullFace(cullFaceMode) { + if (cullFaceMode.enable === false) { + this.cullFace.set(false); + } else { + this.cullFace.set(true); + this.cullFaceSide.set(cullFaceMode.mode); + this.frontFace.set(cullFaceMode.frontFace); + } + } + setDepthMode(depthMode) { + if (depthMode.func === this.gl.ALWAYS && !depthMode.mask) { + this.depthTest.set(false); + } else { + this.depthTest.set(true); + this.depthFunc.set(depthMode.func); + this.depthMask.set(depthMode.mask); + this.depthRange.set(depthMode.range); + } + } + setStencilMode(stencilMode) { + if (stencilMode.test.func === this.gl.ALWAYS && !stencilMode.mask) { + this.stencilTest.set(false); + } else { + this.stencilTest.set(true); + this.stencilMask.set(stencilMode.mask); + this.stencilOp.set([ + stencilMode.fail, + stencilMode.depthFail, + stencilMode.pass + ]); + this.stencilFunc.set({ + func: stencilMode.test.func, + ref: stencilMode.ref, + mask: stencilMode.test.mask + }); + } + } + setColorMode(colorMode) { + if (deepEqual(colorMode.blendFunction, ColorMode.Replace)) { + this.blend.set(false); + } else { + this.blend.set(true); + this.blendFunc.set(colorMode.blendFunction); + this.blendColor.set(colorMode.blendColor); + } + this.colorMask.set(colorMode.mask); + } + unbindVAO() { + if (this.extVertexArrayObject) { + this.bindVertexArrayOES.set(null); + } + } +} + +class SourceCache extends Evented { + constructor(id, source, onlySymbols) { + super(); + this.id = id; + this._onlySymbols = onlySymbols; + source.on('data', e => { + if (e.dataType === 'source' && e.sourceDataType === 'metadata') + this._sourceLoaded = true; + if (this._sourceLoaded && !this._paused && e.dataType === 'source' && e.sourceDataType === 'content') { + this.reload(); + if (this.transform) { + this.update(this.transform); + } + } + }); + source.on('error', () => { + this._sourceErrored = true; + }); + this._source = source; + this._tiles = {}; + this._cache = new TileCache(0, this._unloadTile.bind(this)); + this._timers = {}; + this._cacheTimers = {}; + this._maxTileCacheSize = null; + this._loadedParentTiles = {}; + this._coveredTiles = {}; + this._state = new SourceFeatureState(); + } + onAdd(map) { + this.map = map; + this._maxTileCacheSize = map ? map._maxTileCacheSize : null; + } + loaded() { + if (this._sourceErrored) { + return true; + } + if (!this._sourceLoaded) { + return false; + } + if (!this._source.loaded()) { + return false; + } + for (const t in this._tiles) { + const tile = this._tiles[t]; + if (tile.state !== 'loaded' && tile.state !== 'errored') + return false; + } + return true; + } + getSource() { + return this._source; + } + pause() { + this._paused = true; + } + resume() { + if (!this._paused) + return; + const shouldReload = this._shouldReloadOnResume; + this._paused = false; + this._shouldReloadOnResume = false; + if (shouldReload) + this.reload(); + if (this.transform) + this.update(this.transform); + } + _loadTile(tile, callback) { + tile.isSymbolTile = this._onlySymbols; + return this._source.loadTile(tile, callback); + } + _unloadTile(tile) { + if (this._source.unloadTile) + return this._source.unloadTile(tile, () => { + }); + } + _abortTile(tile) { + if (this._source.abortTile) + return this._source.abortTile(tile, () => { + }); + } + serialize() { + return this._source.serialize(); + } + prepare(context) { + if (this._source.prepare) { + this._source.prepare(); + } + this._state.coalesceChanges(this._tiles, this.map ? this.map.painter : null); + for (const i in this._tiles) { + const tile = this._tiles[i]; + tile.upload(context); + tile.prepare(this.map.style.imageManager); + } + } + getIds() { + return values(this._tiles).map(tile => tile.tileID).sort(compareTileId).map(id => id.key); + } + getRenderableIds(symbolLayer) { + const renderables = []; + for (const id in this._tiles) { + if (this._isIdRenderable(+id, symbolLayer)) + renderables.push(this._tiles[id]); + } + if (symbolLayer) { + return renderables.sort((a_, b_) => { + const a = a_.tileID; + const b = b_.tileID; + const rotatedA = new pointGeometry(a.canonical.x, a.canonical.y)._rotate(this.transform.angle); + const rotatedB = new pointGeometry(b.canonical.x, b.canonical.y)._rotate(this.transform.angle); + return a.overscaledZ - b.overscaledZ || rotatedB.y - rotatedA.y || rotatedB.x - rotatedA.x; + }).map(tile => tile.tileID.key); + } + return renderables.map(tile => tile.tileID).sort(compareTileId).map(id => id.key); + } + hasRenderableParent(tileID) { + const parentTile = this.findLoadedParent(tileID, 0); + if (parentTile) { + return this._isIdRenderable(parentTile.tileID.key); + } + return false; + } + _isIdRenderable(id, symbolLayer) { + return this._tiles[id] && this._tiles[id].hasData() && !this._coveredTiles[id] && (symbolLayer || !this._tiles[id].holdingForFade()); + } + reload() { + if (this._paused) { + this._shouldReloadOnResume = true; + return; + } + this._cache.reset(); + for (const i in this._tiles) { + if (this._tiles[i].state !== 'errored') + this._reloadTile(+i, 'reloading'); + } + } + _reloadTile(id, state) { + const tile = this._tiles[id]; + if (!tile) + return; + if (tile.state !== 'loading') { + tile.state = state; + } + this._loadTile(tile, this._tileLoaded.bind(this, tile, id, state)); + } + _tileLoaded(tile, id, previousState, err) { + if (err) { + tile.state = 'errored'; + if (err.status !== 404) + this._source.fire(new ErrorEvent(err, { tile })); + else + this.update(this.transform); + return; + } + tile.timeAdded = exported.now(); + if (previousState === 'expired') + tile.refreshedUponExpiration = true; + this._setTileReloadTimer(id, tile); + if (this.getSource().type === 'raster-dem' && tile.dem) + this._backfillDEM(tile); + this._state.initializeTileState(tile, this.map ? this.map.painter : null); + this._source.fire(new Event('data', { + dataType: 'source', + tile, + coord: tile.tileID, + 'sourceCacheId': this.id + })); + } + _backfillDEM(tile) { + const renderables = this.getRenderableIds(); + for (let i = 0; i < renderables.length; i++) { + const borderId = renderables[i]; + if (tile.neighboringTiles && tile.neighboringTiles[borderId]) { + const borderTile = this.getTileByID(borderId); + fillBorder(tile, borderTile); + fillBorder(borderTile, tile); + } + } + function fillBorder(tile, borderTile) { + if (!tile.dem || tile.dem.borderReady) + return; + tile.needsHillshadePrepare = true; + tile.needsDEMTextureUpload = true; + let dx = borderTile.tileID.canonical.x - tile.tileID.canonical.x; + const dy = borderTile.tileID.canonical.y - tile.tileID.canonical.y; + const dim = Math.pow(2, tile.tileID.canonical.z); + const borderId = borderTile.tileID.key; + if (dx === 0 && dy === 0) + return; + if (Math.abs(dy) > 1) { + return; + } + if (Math.abs(dx) > 1) { + if (Math.abs(dx + dim) === 1) { + dx += dim; + } else if (Math.abs(dx - dim) === 1) { + dx -= dim; + } + } + if (!borderTile.dem || !tile.dem) + return; + tile.dem.backfillBorder(borderTile.dem, dx, dy); + if (tile.neighboringTiles && tile.neighboringTiles[borderId]) + tile.neighboringTiles[borderId].backfilled = true; + } + } + getTile(tileID) { + return this.getTileByID(tileID.key); + } + getTileByID(id) { + return this._tiles[id]; + } + _retainLoadedChildren(idealTiles, zoom, maxCoveringZoom, retain) { + for (const id in this._tiles) { + let tile = this._tiles[id]; + if (retain[id] || !tile.hasData() || tile.tileID.overscaledZ <= zoom || tile.tileID.overscaledZ > maxCoveringZoom) + continue; + let topmostLoadedID = tile.tileID; + while (tile && tile.tileID.overscaledZ > zoom + 1) { + const parentID = tile.tileID.scaledTo(tile.tileID.overscaledZ - 1); + tile = this._tiles[parentID.key]; + if (tile && tile.hasData()) { + topmostLoadedID = parentID; + } + } + let tileID = topmostLoadedID; + while (tileID.overscaledZ > zoom) { + tileID = tileID.scaledTo(tileID.overscaledZ - 1); + if (idealTiles[tileID.key]) { + retain[topmostLoadedID.key] = topmostLoadedID; + break; + } + } + } + } + findLoadedParent(tileID, minCoveringZoom) { + if (tileID.key in this._loadedParentTiles) { + const parent = this._loadedParentTiles[tileID.key]; + if (parent && parent.tileID.overscaledZ >= minCoveringZoom) { + return parent; + } else { + return null; + } + } + for (let z = tileID.overscaledZ - 1; z >= minCoveringZoom; z--) { + const parentTileID = tileID.scaledTo(z); + const tile = this._getLoadedTile(parentTileID); + if (tile) { + return tile; + } + } + } + _getLoadedTile(tileID) { + const tile = this._tiles[tileID.key]; + if (tile && tile.hasData()) { + return tile; + } + const cachedTile = this._cache.getByKey(this._source.reparseOverscaled ? tileID.wrapped().key : tileID.canonical.key); + return cachedTile; + } + updateCacheSize(transform, tileSize) { + tileSize = tileSize || this._source.tileSize; + const widthInTiles = Math.ceil(transform.width / tileSize) + 1; + const heightInTiles = Math.ceil(transform.height / tileSize) + 1; + const approxTilesInView = widthInTiles * heightInTiles; + const commonZoomRange = 5; + const viewDependentMaxSize = Math.floor(approxTilesInView * commonZoomRange); + const maxSize = typeof this._maxTileCacheSize === 'number' ? Math.min(this._maxTileCacheSize, viewDependentMaxSize) : viewDependentMaxSize; + this._cache.setMaxSize(maxSize); + } + handleWrapJump(lng) { + const prevLng = this._prevLng === undefined ? lng : this._prevLng; + const lngDifference = lng - prevLng; + const worldDifference = lngDifference / 360; + const wrapDelta = Math.round(worldDifference); + this._prevLng = lng; + if (wrapDelta) { + const tiles = {}; + for (const key in this._tiles) { + const tile = this._tiles[key]; + tile.tileID = tile.tileID.unwrapTo(tile.tileID.wrap + wrapDelta); + tiles[tile.tileID.key] = tile; + } + this._tiles = tiles; + for (const id in this._timers) { + clearTimeout(this._timers[id]); + delete this._timers[id]; + } + for (const id in this._tiles) { + const tile = this._tiles[id]; + this._setTileReloadTimer(+id, tile); + } + } + } + update(transform, tileSize, updateForTerrain) { + this.transform = transform; + if (!this._sourceLoaded || this._paused || this.transform.freezeTileCoverage) { + return; + } + if (this.usedForTerrain && !updateForTerrain) { + return; + } + this.updateCacheSize(transform, tileSize); + this.handleWrapJump(this.transform.center.lng); + this._coveredTiles = {}; + let idealTileIDs; + if (!this.used && !this.usedForTerrain) { + idealTileIDs = []; + } else if (this._source.tileID) { + idealTileIDs = transform.getVisibleUnwrappedCoordinates(this._source.tileID).map(unwrapped => new OverscaledTileID(unwrapped.canonical.z, unwrapped.wrap, unwrapped.canonical.z, unwrapped.canonical.x, unwrapped.canonical.y)); + } else { + idealTileIDs = transform.coveringTiles({ + tileSize: tileSize || this._source.tileSize, + minzoom: this._source.minzoom, + maxzoom: this._source.maxzoom, + roundZoom: this._source.roundZoom && !updateForTerrain, + reparseOverscaled: this._source.reparseOverscaled, + useElevationData: !!this.transform.elevation && !this.usedForTerrain + }); + if (this._source.hasTile) { + idealTileIDs = idealTileIDs.filter(coord => this._source.hasTile(coord)); + } + } + const retain = this._updateRetainedTiles(idealTileIDs); + if (isRasterType(this._source.type) && idealTileIDs.length !== 0) { + const parentsForFading = {}; + const fadingTiles = {}; + const ids = Object.keys(retain); + for (const id of ids) { + const tileID = retain[id]; + const tile = this._tiles[id]; + if (!tile || tile.fadeEndTime && tile.fadeEndTime <= exported.now()) + continue; + const parentTile = this.findLoadedParent(tileID, Math.max(tileID.overscaledZ - SourceCache.maxOverzooming, this._source.minzoom)); + if (parentTile) { + this._addTile(parentTile.tileID); + parentsForFading[parentTile.tileID.key] = parentTile.tileID; + } + fadingTiles[id] = tileID; + } + const minZoom = idealTileIDs[idealTileIDs.length - 1].overscaledZ; + for (const id in this._tiles) { + const childTile = this._tiles[id]; + if (retain[id] || !childTile.hasData()) { + continue; + } + let parentID = childTile.tileID; + while (parentID.overscaledZ > minZoom) { + parentID = parentID.scaledTo(parentID.overscaledZ - 1); + const tile = this._tiles[parentID.key]; + if (tile && tile.hasData() && fadingTiles[parentID.key]) { + retain[id] = childTile.tileID; + break; + } + } + } + for (const id in parentsForFading) { + if (!retain[id]) { + this._coveredTiles[id] = true; + retain[id] = parentsForFading[id]; + } + } + } + for (const retainedId in retain) { + this._tiles[retainedId].clearFadeHold(); + } + const remove = keysDifference(this._tiles, retain); + for (const tileID of remove) { + const tile = this._tiles[tileID]; + if (tile.hasSymbolBuckets && !tile.holdingForFade()) { + tile.setHoldDuration(this.map._fadeDuration); + } else if (!tile.hasSymbolBuckets || tile.symbolFadeFinished()) { + this._removeTile(+tileID); + } + } + this._updateLoadedParentTileCache(); + if (this._onlySymbols && this._source.afterUpdate) { + this._source.afterUpdate(); + } + } + releaseSymbolFadeTiles() { + for (const id in this._tiles) { + if (this._tiles[id].holdingForFade()) { + this._removeTile(+id); + } + } + } + _updateRetainedTiles(idealTileIDs) { + const retain = {}; + if (idealTileIDs.length === 0) { + return retain; + } + const checked = {}; + const minZoom = idealTileIDs[idealTileIDs.length - 1].overscaledZ; + const maxZoom = idealTileIDs[0].overscaledZ; + const minCoveringZoom = Math.max(maxZoom - SourceCache.maxOverzooming, this._source.minzoom); + const maxCoveringZoom = Math.max(maxZoom + SourceCache.maxUnderzooming, this._source.minzoom); + const missingTiles = {}; + for (const tileID of idealTileIDs) { + const tile = this._addTile(tileID); + retain[tileID.key] = tileID; + if (tile.hasData()) + continue; + if (minZoom < this._source.maxzoom) { + missingTiles[tileID.key] = tileID; + } + } + this._retainLoadedChildren(missingTiles, minZoom, maxCoveringZoom, retain); + for (const tileID of idealTileIDs) { + let tile = this._tiles[tileID.key]; + if (tile.hasData()) + continue; + if (tileID.canonical.z >= this._source.maxzoom) { + const childCoord = tileID.children(this._source.maxzoom)[0]; + const childTile = this.getTile(childCoord); + if (!!childTile && childTile.hasData()) { + retain[childCoord.key] = childCoord; + continue; + } + } else { + const children = tileID.children(this._source.maxzoom); + if (retain[children[0].key] && retain[children[1].key] && retain[children[2].key] && retain[children[3].key]) + continue; + } + let parentWasRequested = tile.wasRequested(); + for (let overscaledZ = tileID.overscaledZ - 1; overscaledZ >= minCoveringZoom; --overscaledZ) { + const parentId = tileID.scaledTo(overscaledZ); + if (checked[parentId.key]) + break; + checked[parentId.key] = true; + tile = this.getTile(parentId); + if (!tile && parentWasRequested) { + tile = this._addTile(parentId); + } + if (tile) { + retain[parentId.key] = parentId; + parentWasRequested = tile.wasRequested(); + if (tile.hasData()) + break; + } + } + } + return retain; + } + _updateLoadedParentTileCache() { + this._loadedParentTiles = {}; + for (const tileKey in this._tiles) { + const path = []; + let parentTile; + let currentId = this._tiles[tileKey].tileID; + while (currentId.overscaledZ > 0) { + if (currentId.key in this._loadedParentTiles) { + parentTile = this._loadedParentTiles[currentId.key]; + break; + } + path.push(currentId.key); + const parentId = currentId.scaledTo(currentId.overscaledZ - 1); + parentTile = this._getLoadedTile(parentId); + if (parentTile) { + break; + } + currentId = parentId; + } + for (const key of path) { + this._loadedParentTiles[key] = parentTile; + } + } + } + _addTile(tileID) { + let tile = this._tiles[tileID.key]; + if (tile) + return tile; + tile = this._cache.getAndRemove(tileID); + if (tile) { + this._setTileReloadTimer(tileID.key, tile); + tile.tileID = tileID; + this._state.initializeTileState(tile, this.map ? this.map.painter : null); + if (this._cacheTimers[tileID.key]) { + clearTimeout(this._cacheTimers[tileID.key]); + delete this._cacheTimers[tileID.key]; + this._setTileReloadTimer(tileID.key, tile); + } + } + const cached = Boolean(tile); + if (!cached) { + tile = new Tile(tileID, this._source.tileSize * tileID.overscaleFactor(), this.transform.tileZoom); + this._loadTile(tile, this._tileLoaded.bind(this, tile, tileID.key, tile.state)); + } + if (!tile) + return null; + tile.uses++; + this._tiles[tileID.key] = tile; + if (!cached) + this._source.fire(new Event('dataloading', { + tile, + coord: tile.tileID, + dataType: 'source' + })); + return tile; + } + _setTileReloadTimer(id, tile) { + if (id in this._timers) { + clearTimeout(this._timers[id]); + delete this._timers[id]; + } + const expiryTimeout = tile.getExpiryTimeout(); + if (expiryTimeout) { + this._timers[id] = setTimeout(() => { + this._reloadTile(id, 'expired'); + delete this._timers[id]; + }, expiryTimeout); + } + } + _removeTile(id) { + const tile = this._tiles[id]; + if (!tile) + return; + tile.uses--; + delete this._tiles[id]; + if (this._timers[id]) { + clearTimeout(this._timers[id]); + delete this._timers[id]; + } + if (tile.uses > 0) + return; + if (tile.hasData() && tile.state !== 'reloading') { + this._cache.add(tile.tileID, tile, tile.getExpiryTimeout()); + } else { + tile.aborted = true; + this._abortTile(tile); + this._unloadTile(tile); + } + } + clearTiles() { + this._shouldReloadOnResume = false; + this._paused = false; + for (const id in this._tiles) + this._removeTile(+id); + this._cache.reset(); + } + tilesIn(queryGeometry, use3DQuery, visualizeQueryGeometry) { + const tileResults = []; + const transform = this.transform; + if (!transform) + return tileResults; + for (const tileID in this._tiles) { + const tile = this._tiles[tileID]; + if (visualizeQueryGeometry) { + tile.clearQueryDebugViz(); + } + if (tile.holdingForFade()) { + continue; + } + const tileResult = queryGeometry.containsTile(tile, transform, use3DQuery); + if (tileResult) { + tileResults.push(tileResult); + } + } + return tileResults; + } + getVisibleCoordinates(symbolLayer) { + const coords = this.getRenderableIds(symbolLayer).map(id => this._tiles[id].tileID); + for (const coord of coords) { + coord.posMatrix = this.transform.calculatePosMatrix(coord.toUnwrapped()); + } + return coords; + } + hasTransition() { + if (this._source.hasTransition()) { + return true; + } + if (isRasterType(this._source.type)) { + for (const id in this._tiles) { + const tile = this._tiles[id]; + if (tile.fadeEndTime !== undefined && tile.fadeEndTime >= exported.now()) { + return true; + } + } + } + return false; + } + setFeatureState(sourceLayer, featureId, state) { + sourceLayer = sourceLayer || '_geojsonTileLayer'; + this._state.updateState(sourceLayer, featureId, state); + } + removeFeatureState(sourceLayer, featureId, key) { + sourceLayer = sourceLayer || '_geojsonTileLayer'; + this._state.removeFeatureState(sourceLayer, featureId, key); + } + getFeatureState(sourceLayer, featureId) { + sourceLayer = sourceLayer || '_geojsonTileLayer'; + return this._state.getState(sourceLayer, featureId); + } + setDependencies(tileKey, namespace, dependencies) { + const tile = this._tiles[tileKey]; + if (tile) { + tile.setDependencies(namespace, dependencies); + } + } + reloadTilesForDependencies(namespaces, keys) { + for (const id in this._tiles) { + const tile = this._tiles[id]; + if (tile.hasDependency(namespaces, keys)) { + this._reloadTile(+id, 'reloading'); + } + } + this._cache.filter(tile => !tile.hasDependency(namespaces, keys)); + } +} +SourceCache.maxOverzooming = 10; +SourceCache.maxUnderzooming = 3; +function compareTileId(a, b) { + const aWrap = Math.abs(a.wrap * 2) - +(a.wrap < 0); + const bWrap = Math.abs(b.wrap * 2) - +(b.wrap < 0); + return a.overscaledZ - b.overscaledZ || bWrap - aWrap || b.canonical.y - a.canonical.y || b.canonical.x - a.canonical.x; +} +function isRasterType(type) { + return type === 'raster' || type === 'image' || type === 'video'; +} + +class Elevation { + getAtPoint(point, defaultIfNotLoaded = 0) { + const src = this._source(); + if (!src) + return defaultIfNotLoaded; + if (point.y < 0 || point.y > 1) { + return defaultIfNotLoaded; + } + const cache = src; + const z = cache.getSource().maxzoom; + const tiles = 1 << z; + const wrap = Math.floor(point.x); + const px = point.x - wrap; + const tileID = new OverscaledTileID(z, wrap, z, Math.floor(px * tiles), Math.floor(point.y * tiles)); + const demTile = this.findDEMTileFor(tileID); + if (!(demTile && demTile.dem)) { + return defaultIfNotLoaded; + } + const dem = demTile.dem; + const tilesAtTileZoom = 1 << demTile.tileID.canonical.z; + const x = (px * tilesAtTileZoom - demTile.tileID.canonical.x) * dem.dim; + const y = (point.y * tilesAtTileZoom - demTile.tileID.canonical.y) * dem.dim; + const i = Math.floor(x); + const j = Math.floor(y); + return this.exaggeration() * number(number(dem.get(i, j), dem.get(i, j + 1), y - j), number(dem.get(i + 1, j), dem.get(i + 1, j + 1), y - j), x - i); + } + getAtTileOffset(tileID, x, y) { + const tilesAtTileZoom = 1 << tileID.canonical.z; + return this.getAtPoint(new MercatorCoordinate(tileID.wrap + (tileID.canonical.x + x / EXTENT$1) / tilesAtTileZoom, (tileID.canonical.y + y / EXTENT$1) / tilesAtTileZoom)); + } + getForTilePoints(tileID, points, interpolated, useDemTile) { + const helper = DEMSampler.create(this, tileID, useDemTile); + if (!helper) { + return false; + } + points.forEach(p => { + p[2] = this.exaggeration() * helper.getElevationAt(p[0], p[1], interpolated); + }); + return true; + } + getMinMaxForTile(tileID) { + const demTile = this.findDEMTileFor(tileID); + if (!(demTile && demTile.dem)) { + return null; + } + const dem = demTile.dem; + const tree = dem.tree; + const demTileID = demTile.tileID; + const scale = 1 << tileID.canonical.z - demTileID.canonical.z; + let xOffset = tileID.canonical.x / scale - demTileID.canonical.x; + let yOffset = tileID.canonical.y / scale - demTileID.canonical.y; + let index = 0; + for (let i = 0; i < tileID.canonical.z - demTileID.canonical.z; i++) { + if (tree.leaves[index]) + break; + xOffset *= 2; + yOffset *= 2; + const childOffset = 2 * Math.floor(yOffset) + Math.floor(xOffset); + index = tree.childOffsets[index] + childOffset; + xOffset = xOffset % 1; + yOffset = yOffset % 1; + } + return { + min: this.exaggeration() * tree.minimums[index], + max: this.exaggeration() * tree.maximums[index] + }; + } + raycast(position, dir, exaggeration) { + throw new Error('Pure virtual method called.'); + } + pointCoordinate(screenPoint) { + throw new Error('Pure virtual method called.'); + } + _source() { + throw new Error('Pure virtual method called.'); + } + exaggeration() { + throw new Error('Pure virtual method called.'); + } + findDEMTileFor(_) { + throw new Error('Pure virtual method called.'); + } + get visibleDemTiles() { + throw new Error('Getter must be implemented in subclass.'); + } +} +class DEMSampler { + constructor(demTile, scale, offset) { + this._demTile = demTile; + this._dem = this._demTile.dem; + this._scale = scale; + this._offset = offset; + } + static create(elevation, tileID, useDemTile) { + const demTile = useDemTile || elevation.findDEMTileFor(tileID); + if (!(demTile && demTile.dem)) { + return; + } + const dem = demTile.dem; + const demTileID = demTile.tileID; + const scale = 1 << tileID.canonical.z - demTileID.canonical.z; + const xOffset = (tileID.canonical.x / scale - demTileID.canonical.x) * dem.dim; + const yOffset = (tileID.canonical.y / scale - demTileID.canonical.y) * dem.dim; + const k = demTile.tileSize / EXTENT$1 / scale; + return new DEMSampler(demTile, k, [ + xOffset, + yOffset + ]); + } + tileCoordToPixel(x, y) { + const px = x * this._scale + this._offset[0]; + const py = y * this._scale + this._offset[1]; + const i = Math.floor(px); + const j = Math.floor(py); + return new pointGeometry(i, j); + } + getElevationAt(x, y, interpolated, clampToEdge) { + const px = x * this._scale + this._offset[0]; + const py = y * this._scale + this._offset[1]; + const i = Math.floor(px); + const j = Math.floor(py); + const dem = this._dem; + clampToEdge = !!clampToEdge; + return interpolated ? number(number(dem.get(i, j, clampToEdge), dem.get(i, j + 1, clampToEdge), py - j), number(dem.get(i + 1, j, clampToEdge), dem.get(i + 1, j + 1, clampToEdge), py - j), px - i) : dem.get(i, j, clampToEdge); + } + getElevationAtPixel(x, y, clampToEdge) { + return this._dem.get(x, y, !!clampToEdge); + } + getMeterToDEM(lat) { + return (1 << this._demTile.tileID.canonical.z) * mercatorZfromAltitude(1, lat) * this._dem.stride; + } +} + +class FeatureIndex { + constructor(tileID, promoteId) { + this.tileID = tileID; + this.x = tileID.canonical.x; + this.y = tileID.canonical.y; + this.z = tileID.canonical.z; + this.grid = new gridIndex(EXTENT$1, 16, 0); + this.featureIndexArray = new FeatureIndexArray(); + this.promoteId = promoteId; + } + insert(feature, geometry, featureIndex, sourceLayerIndex, bucketIndex, layoutVertexArrayOffset = 0) { + const key = this.featureIndexArray.length; + this.featureIndexArray.emplaceBack(featureIndex, sourceLayerIndex, bucketIndex, layoutVertexArrayOffset); + const grid = this.grid; + for (let r = 0; r < geometry.length; r++) { + const ring = geometry[r]; + const bbox = [ + Infinity, + Infinity, + -Infinity, + -Infinity + ]; + for (let i = 0; i < ring.length; i++) { + const p = ring[i]; + bbox[0] = Math.min(bbox[0], p.x); + bbox[1] = Math.min(bbox[1], p.y); + bbox[2] = Math.max(bbox[2], p.x); + bbox[3] = Math.max(bbox[3], p.y); + } + if (bbox[0] < EXTENT$1 && bbox[1] < EXTENT$1 && bbox[2] >= 0 && bbox[3] >= 0) { + grid.insert(key, bbox[0], bbox[1], bbox[2], bbox[3]); + } + } + } + loadVTLayers() { + if (!this.vtLayers) { + this.vtLayers = new vectorTile.VectorTile(new pbf(this.rawTileData)).layers; + this.sourceLayerCoder = new DictionaryCoder(this.vtLayers ? Object.keys(this.vtLayers).sort() : ['_geojsonTileLayer']); + } + return this.vtLayers; + } + query(args, styleLayers, serializedLayers, sourceFeatureState) { + this.loadVTLayers(); + const params = args.params || {}, filter = createFilter(params.filter); + const tilespaceGeometry = args.tileResult; + const transform = args.transform; + const bounds = tilespaceGeometry.bufferedTilespaceBounds; + const queryPredicate = (bx1, by1, bx2, by2) => { + return polygonIntersectsBox(tilespaceGeometry.bufferedTilespaceGeometry, bx1, by1, bx2, by2); + }; + const matching = this.grid.query(bounds.min.x, bounds.min.y, bounds.max.x, bounds.max.y, queryPredicate); + matching.sort(topDownFeatureComparator); + let elevationHelper = null; + if (transform.elevation && matching.length > 0) { + elevationHelper = DEMSampler.create(transform.elevation, this.tileID); + } + const result = {}; + let previousIndex; + for (let k = 0; k < matching.length; k++) { + const index = matching[k]; + if (index === previousIndex) + continue; + previousIndex = index; + const match = this.featureIndexArray.get(index); + let featureGeometry = null; + this.loadMatchingFeature(result, match, filter, params.layers, params.availableImages, styleLayers, serializedLayers, sourceFeatureState, (feature, styleLayer, featureState, layoutVertexArrayOffset = 0) => { + if (!featureGeometry) { + featureGeometry = loadGeometry(feature); + } + return styleLayer.queryIntersectsFeature(tilespaceGeometry, feature, featureState, featureGeometry, this.z, args.transform, args.pixelPosMatrix, elevationHelper, layoutVertexArrayOffset); + }); + } + return result; + } + loadMatchingFeature(result, featureIndexData, filter, filterLayerIDs, availableImages, styleLayers, serializedLayers, sourceFeatureState, intersectionTest) { + const {featureIndex, bucketIndex, sourceLayerIndex, layoutVertexArrayOffset} = featureIndexData; + const layerIDs = this.bucketLayerIDs[bucketIndex]; + if (filterLayerIDs && !arraysIntersect(filterLayerIDs, layerIDs)) + return; + const sourceLayerName = this.sourceLayerCoder.decode(sourceLayerIndex); + const sourceLayer = this.vtLayers[sourceLayerName]; + const feature = sourceLayer.feature(featureIndex); + if (filter.needGeometry) { + const evaluationFeature = toEvaluationFeature(feature, true); + if (!filter.filter(new EvaluationParameters(this.tileID.overscaledZ), evaluationFeature, this.tileID.canonical)) { + return; + } + } else if (!filter.filter(new EvaluationParameters(this.tileID.overscaledZ), feature)) { + return; + } + const id = this.getId(feature, sourceLayerName); + for (let l = 0; l < layerIDs.length; l++) { + const layerID = layerIDs[l]; + if (filterLayerIDs && filterLayerIDs.indexOf(layerID) < 0) { + continue; + } + const styleLayer = styleLayers[layerID]; + if (!styleLayer) + continue; + let featureState = {}; + if (id !== undefined && sourceFeatureState) { + featureState = sourceFeatureState.getState(styleLayer.sourceLayer || '_geojsonTileLayer', id); + } + const serializedLayer = extend({}, serializedLayers[layerID]); + serializedLayer.paint = evaluateProperties(serializedLayer.paint, styleLayer.paint, feature, featureState, availableImages); + serializedLayer.layout = evaluateProperties(serializedLayer.layout, styleLayer.layout, feature, featureState, availableImages); + const intersectionZ = !intersectionTest || intersectionTest(feature, styleLayer, featureState, layoutVertexArrayOffset); + if (!intersectionZ) { + continue; + } + const geojsonFeature = new Feature(feature, this.z, this.x, this.y, id); + geojsonFeature.layer = serializedLayer; + let layerResult = result[layerID]; + if (layerResult === undefined) { + layerResult = result[layerID] = []; + } + layerResult.push({ + featureIndex, + feature: geojsonFeature, + intersectionZ + }); + } + } + lookupSymbolFeatures(symbolFeatureIndexes, serializedLayers, bucketIndex, sourceLayerIndex, filterSpec, filterLayerIDs, availableImages, styleLayers) { + const result = {}; + this.loadVTLayers(); + const filter = createFilter(filterSpec); + for (const symbolFeatureIndex of symbolFeatureIndexes) { + this.loadMatchingFeature(result, { + bucketIndex, + sourceLayerIndex, + featureIndex: symbolFeatureIndex, + layoutVertexArrayOffset: 0 + }, filter, filterLayerIDs, availableImages, styleLayers, serializedLayers); + } + return result; + } + hasLayer(id) { + for (const layerIDs of this.bucketLayerIDs) { + for (const layerID of layerIDs) { + if (id === layerID) + return true; + } + } + return false; + } + getId(feature, sourceLayerId) { + let id = feature.id; + if (this.promoteId) { + const propName = typeof this.promoteId === 'string' ? this.promoteId : this.promoteId[sourceLayerId]; + id = feature.properties[propName]; + if (typeof id === 'boolean') + id = Number(id); + } + return id; + } +} +register('FeatureIndex', FeatureIndex, { + omit: [ + 'rawTileData', + 'sourceLayerCoder' + ] +}); +function evaluateProperties(serializedProperties, styleLayerProperties, feature, featureState, availableImages) { + return mapObject(serializedProperties, (property, key) => { + const prop = styleLayerProperties instanceof PossiblyEvaluated ? styleLayerProperties.get(key) : null; + return prop && prop.evaluate ? prop.evaluate(feature, featureState, availableImages) : prop; + }); +} +function topDownFeatureComparator(a, b) { + return b - a; +} + +const glyphPadding = 1; +const localGlyphPadding = glyphPadding * SDF_SCALE; +class GlyphAtlas { + constructor(stacks) { + const positions = {}; + const bins = []; + for (const stack in stacks) { + const glyphs = stacks[stack]; + const stackPositions = positions[stack] = {}; + for (const id in glyphs) { + const src = glyphs[+id]; + if (!src || src.bitmap.width === 0 || src.bitmap.height === 0) + continue; + const padding = src.metrics.localGlyph ? localGlyphPadding : glyphPadding; + const bin = { + x: 0, + y: 0, + w: src.bitmap.width + 2 * padding, + h: src.bitmap.height + 2 * padding + }; + bins.push(bin); + stackPositions[id] = { + rect: bin, + metrics: src.metrics + }; + } + } + const {w, h} = potpack(bins); + const image = new AlphaImage({ + width: w || 1, + height: h || 1 + }); + for (const stack in stacks) { + const glyphs = stacks[stack]; + for (const id in glyphs) { + const src = glyphs[+id]; + if (!src || src.bitmap.width === 0 || src.bitmap.height === 0) + continue; + const bin = positions[stack][id].rect; + const padding = src.metrics.localGlyph ? localGlyphPadding : glyphPadding; + AlphaImage.copy(src.bitmap, image, { + x: 0, + y: 0 + }, { + x: bin.x + padding, + y: bin.y + padding + }, src.bitmap); + } + } + this.image = image; + this.positions = positions; + } +} +register('GlyphAtlas', GlyphAtlas); + +class WorkerTile { + constructor(params) { + this.tileID = new OverscaledTileID(params.tileID.overscaledZ, params.tileID.wrap, params.tileID.canonical.z, params.tileID.canonical.x, params.tileID.canonical.y); + this.tileZoom = params.tileZoom; + this.uid = params.uid; + this.zoom = params.zoom; + this.pixelRatio = params.pixelRatio; + this.tileSize = params.tileSize; + this.source = params.source; + this.overscaling = this.tileID.overscaleFactor(); + this.showCollisionBoxes = params.showCollisionBoxes; + this.collectResourceTiming = !!params.collectResourceTiming; + this.returnDependencies = !!params.returnDependencies; + this.promoteId = params.promoteId; + this.enableTerrain = !!params.enableTerrain; + this.isSymbolTile = params.isSymbolTile; + } + parse(data, layerIndex, availableImages, actor, callback) { + this.status = 'parsing'; + this.data = data; + this.collisionBoxArray = new CollisionBoxArray(); + const sourceLayerCoder = new DictionaryCoder(Object.keys(data.layers).sort()); + const featureIndex = new FeatureIndex(this.tileID, this.promoteId); + featureIndex.bucketLayerIDs = []; + const buckets = {}; + const options = { + featureIndex, + iconDependencies: {}, + patternDependencies: {}, + glyphDependencies: {}, + availableImages + }; + const layerFamilies = layerIndex.familiesBySource[this.source]; + for (const sourceLayerId in layerFamilies) { + const sourceLayer = data.layers[sourceLayerId]; + if (!sourceLayer) { + continue; + } + let anySymbolLayers = false; + let anyOtherLayers = false; + for (const family of layerFamilies[sourceLayerId]) { + if (family[0].type === 'symbol') { + anySymbolLayers = true; + } else { + anyOtherLayers = true; + } + } + if (this.isSymbolTile === true && !anySymbolLayers) { + continue; + } else if (this.isSymbolTile === false && !anyOtherLayers) { + continue; + } + if (sourceLayer.version === 1) { + warnOnce(`Vector tile source "${ this.source }" layer "${ sourceLayerId }" ` + `does not use vector tile spec v2 and therefore may have some rendering errors.`); + } + const sourceLayerIndex = sourceLayerCoder.encode(sourceLayerId); + const features = []; + for (let index = 0; index < sourceLayer.length; index++) { + const feature = sourceLayer.feature(index); + const id = featureIndex.getId(feature, sourceLayerId); + features.push({ + feature, + id, + index, + sourceLayerIndex + }); + } + for (const family of layerFamilies[sourceLayerId]) { + const layer = family[0]; + if (this.isSymbolTile !== undefined && layer.type === 'symbol' !== this.isSymbolTile) + continue; + if (layer.minzoom && this.zoom < Math.floor(layer.minzoom)) + continue; + if (layer.maxzoom && this.zoom >= layer.maxzoom) + continue; + if (layer.visibility === 'none') + continue; + recalculateLayers(family, this.zoom, availableImages); + const bucket = buckets[layer.id] = layer.createBucket({ + index: featureIndex.bucketLayerIDs.length, + layers: family, + zoom: this.zoom, + pixelRatio: this.pixelRatio, + overscaling: this.overscaling, + collisionBoxArray: this.collisionBoxArray, + sourceLayerIndex, + sourceID: this.source, + enableTerrain: this.enableTerrain + }); + bucket.populate(features, options, this.tileID.canonical); + featureIndex.bucketLayerIDs.push(family.map(l => l.id)); + } + } + let error; + let glyphMap; + let iconMap; + let patternMap; + const taskMetadata = { + type: 'maybePrepare', + isSymbolTile: this.isSymbolTile, + zoom: this.zoom + }; + const stacks = mapObject(options.glyphDependencies, glyphs => Object.keys(glyphs).map(Number)); + if (Object.keys(stacks).length) { + actor.send('getGlyphs', { + uid: this.uid, + stacks + }, (err, result) => { + if (!error) { + error = err; + glyphMap = result; + maybePrepare.call(this); + } + }, undefined, undefined, taskMetadata); + } else { + glyphMap = {}; + } + const icons = Object.keys(options.iconDependencies); + if (icons.length) { + actor.send('getImages', { + icons, + source: this.source, + tileID: this.tileID, + type: 'icons' + }, (err, result) => { + if (!error) { + error = err; + iconMap = result; + maybePrepare.call(this); + } + }, undefined, undefined, taskMetadata); + } else { + iconMap = {}; + } + const patterns = Object.keys(options.patternDependencies); + if (patterns.length) { + actor.send('getImages', { + icons: patterns, + source: this.source, + tileID: this.tileID, + type: 'patterns' + }, (err, result) => { + if (!error) { + error = err; + patternMap = result; + maybePrepare.call(this); + } + }, undefined, undefined, taskMetadata); + } else { + patternMap = {}; + } + maybePrepare.call(this); + function maybePrepare() { + if (error) { + return callback(error); + } else if (glyphMap && iconMap && patternMap) { + const glyphAtlas = new GlyphAtlas(glyphMap); + const imageAtlas = new ImageAtlas(iconMap, patternMap); + for (const key in buckets) { + const bucket = buckets[key]; + if (bucket instanceof SymbolBucket) { + recalculateLayers(bucket.layers, this.zoom, availableImages); + performSymbolLayout(bucket, glyphMap, glyphAtlas.positions, iconMap, imageAtlas.iconPositions, this.showCollisionBoxes, this.tileID.canonical, this.tileZoom); + } else if (bucket.hasPattern && (bucket instanceof LineBucket || bucket instanceof FillBucket || bucket instanceof FillExtrusionBucket)) { + recalculateLayers(bucket.layers, this.zoom, availableImages); + bucket.addFeatures(options, this.tileID.canonical, imageAtlas.patternPositions); + } + } + this.status = 'done'; + callback(null, { + buckets: values(buckets).filter(b => !b.isEmpty()), + featureIndex, + collisionBoxArray: this.collisionBoxArray, + glyphAtlasImage: glyphAtlas.image, + imageAtlas, + glyphMap: this.returnDependencies ? glyphMap : null, + iconMap: this.returnDependencies ? iconMap : null, + glyphPositions: this.returnDependencies ? glyphAtlas.positions : null + }); + } + } + } +} +function recalculateLayers(layers, zoom, availableImages) { + const parameters = new EvaluationParameters(zoom); + for (const layer of layers) { + layer.recalculate(parameters, availableImages); + } +} + +class DedupedRequest { + constructor(scheduler) { + this.entries = {}; + this.scheduler = scheduler; + } + request(key, metadata, request, callback) { + const entry = this.entries[key] = this.entries[key] || { callbacks: [] }; + if (entry.result) { + const [err, result] = entry.result; + if (this.scheduler) { + this.scheduler.add(() => { + callback(err, result); + }, metadata); + } else { + callback(err, result); + } + return () => { + }; + } + entry.callbacks.push(callback); + if (!entry.cancel) { + entry.cancel = request((err, result) => { + entry.result = [ + err, + result + ]; + for (const cb of entry.callbacks) { + if (this.scheduler) { + this.scheduler.add(() => { + cb(err, result); + }, metadata); + } else { + cb(err, result); + } + } + setTimeout(() => delete this.entries[key], 1000 * 3); + }); + } + return () => { + if (entry.result) + return; + entry.callbacks = entry.callbacks.filter(cb => cb !== callback); + if (!entry.callbacks.length) { + entry.cancel(); + delete this.entries[key]; + } + }; + } +} +function loadVectorTile(params, callback, skipParse) { + const key = JSON.stringify(params.request); + const makeRequest = callback => { + const request = getArrayBuffer(params.request, (err, data, cacheControl, expires) => { + if (err) { + callback(err); + } else if (data) { + callback(null, { + vectorTile: skipParse ? undefined : new vectorTile.VectorTile(new pbf(data)), + rawData: data, + cacheControl, + expires + }); + } + }); + return () => { + request.cancel(); + callback(); + }; + }; + if (params.data) { + this.deduped.entries[key] = { + result: [ + null, + params.data + ] + }; + } + const callbackMetadata = { + type: 'parseTile', + isSymbolTile: params.isSymbolTile, + zoom: params.tileZoom + }; + return this.deduped.request(key, callbackMetadata, makeRequest, callback); +} +class VectorTileWorkerSource extends Evented { + constructor(actor, layerIndex, availableImages, isSpriteLoaded, loadVectorData) { + super(); + this.actor = actor; + this.layerIndex = layerIndex; + this.availableImages = availableImages; + this.loadVectorData = loadVectorData || loadVectorTile; + this.loading = {}; + this.loaded = {}; + this.deduped = new DedupedRequest(actor.scheduler); + this.isSpriteLoaded = isSpriteLoaded; + this.scheduler = actor.scheduler; + } + loadTile(params, callback) { + const uid = params.uid; + const perf = params && params.request && params.request.collectResourceTiming ? new RequestPerformance(params.request) : false; + const workerTile = this.loading[uid] = new WorkerTile(params); + workerTile.abort = this.loadVectorData(params, (err, response) => { + const aborted = !this.loading[uid]; + delete this.loading[uid]; + if (aborted || err || !response) { + workerTile.status = 'done'; + if (!aborted) + this.loaded[uid] = workerTile; + return callback(err); + } + const rawTileData = response.rawData; + const cacheControl = {}; + if (response.expires) + cacheControl.expires = response.expires; + if (response.cacheControl) + cacheControl.cacheControl = response.cacheControl; + const resourceTiming = {}; + if (perf) { + const resourceTimingData = perf.finish(); + if (resourceTimingData) + resourceTiming.resourceTiming = JSON.parse(JSON.stringify(resourceTimingData)); + } + workerTile.vectorTile = response.vectorTile || new vectorTile.VectorTile(new pbf(rawTileData)); + const parseTile = () => { + workerTile.parse(workerTile.vectorTile, this.layerIndex, this.availableImages, this.actor, (err, result) => { + if (err || !result) + return callback(err); + callback(null, extend({ rawTileData: rawTileData.slice(0) }, result, cacheControl, resourceTiming)); + }); + }; + if (this.isSpriteLoaded) { + parseTile(); + } else { + this.once('isSpriteLoaded', () => { + if (this.scheduler) { + const metadata = { + type: 'parseTile', + isSymbolTile: params.isSymbolTile, + zoom: params.tileZoom + }; + this.scheduler.add(parseTile, metadata); + } else { + parseTile(); + } + }); + } + this.loaded = this.loaded || {}; + this.loaded[uid] = workerTile; + }); + } + reloadTile(params, callback) { + const loaded = this.loaded, uid = params.uid, vtSource = this; + if (loaded && loaded[uid]) { + const workerTile = loaded[uid]; + workerTile.showCollisionBoxes = params.showCollisionBoxes; + workerTile.enableTerrain = !!params.enableTerrain; + const done = (err, data) => { + const reloadCallback = workerTile.reloadCallback; + if (reloadCallback) { + delete workerTile.reloadCallback; + workerTile.parse(workerTile.vectorTile, vtSource.layerIndex, this.availableImages, vtSource.actor, reloadCallback); + } + callback(err, data); + }; + if (workerTile.status === 'parsing') { + workerTile.reloadCallback = done; + } else if (workerTile.status === 'done') { + if (workerTile.vectorTile) { + workerTile.parse(workerTile.vectorTile, this.layerIndex, this.availableImages, this.actor, done); + } else { + done(); + } + } + } + } + abortTile(params, callback) { + const uid = params.uid; + const tile = this.loading[uid]; + if (tile) { + if (tile.abort) + tile.abort(); + delete this.loading[uid]; + } + callback(); + } + removeTile(params, callback) { + const loaded = this.loaded, uid = params.uid; + if (loaded && loaded[uid]) { + delete loaded[uid]; + } + callback(); + } +} + +var refProperties = [ + 'type', + 'source', + 'source-layer', + 'minzoom', + 'maxzoom', + 'filter', + 'layout' +]; + +exports.AUTH_ERR_MSG = AUTH_ERR_MSG; +exports.Aabb = Aabb; +exports.Actor = Actor; +exports.CanonicalTileID = CanonicalTileID; +exports.Color = Color; +exports.ColorMode = ColorMode; +exports.Context = Context; +exports.CullFaceMode = CullFaceMode; +exports.DEMData = DEMData; +exports.DataConstantProperty = DataConstantProperty; +exports.DedupedRequest = DedupedRequest; +exports.DepthMode = DepthMode; +exports.DepthStencilAttachment = DepthStencilAttachment; +exports.EXTENT = EXTENT$1; +exports.Elevation = Elevation; +exports.ErrorEvent = ErrorEvent; +exports.EvaluationParameters = EvaluationParameters; +exports.Event = Event; +exports.Evented = Evented; +exports.Frustum = Frustum; +exports.GlyphManager = GlyphManager; +exports.ImagePosition = ImagePosition; +exports.LngLat = LngLat; +exports.LngLatBounds = LngLatBounds; +exports.LocalGlyphMode = LocalGlyphMode; +exports.MAX_SAFE_INTEGER = MAX_SAFE_INTEGER; +exports.MercatorCoordinate = MercatorCoordinate; +exports.ONE_EM = ONE_EM; +exports.OverscaledTileID = OverscaledTileID; +exports.Point = pointGeometry; +exports.Point$1 = pointGeometry; +exports.Properties = Properties; +exports.RGBAImage = RGBAImage; +exports.Ray = Ray; +exports.RequestManager = RequestManager; +exports.RequestPerformance = RequestPerformance; +exports.ResourceType = ResourceType; +exports.SegmentVector = SegmentVector; +exports.SourceCache = SourceCache; +exports.StencilMode = StencilMode; +exports.StructArrayLayout1ui2 = StructArrayLayout1ui2; +exports.StructArrayLayout2f1f2i16 = StructArrayLayout2f1f2i16; +exports.StructArrayLayout2i4 = StructArrayLayout2i4; +exports.StructArrayLayout3f12 = StructArrayLayout3f12; +exports.StructArrayLayout3ui6 = StructArrayLayout3ui6; +exports.StructArrayLayout4i8 = StructArrayLayout4i8; +exports.Texture = Texture; +exports.Tile = Tile; +exports.Transitionable = Transitionable; +exports.Uniform1f = Uniform1f; +exports.Uniform1i = Uniform1i; +exports.Uniform2f = Uniform2f; +exports.Uniform3f = Uniform3f; +exports.Uniform4f = Uniform4f; +exports.UniformColor = UniformColor; +exports.UniformMatrix3f = UniformMatrix3f; +exports.UniformMatrix4f = UniformMatrix4f; +exports.UnwrappedTileID = UnwrappedTileID; +exports.ValidationError = ValidationError; +exports.VectorTileWorkerSource = VectorTileWorkerSource; +exports.WritingMode = WritingMode; +exports.ZoomHistory = ZoomHistory; +exports.add = add; +exports.addDynamicAttributes = addDynamicAttributes; +exports.altitudeFromMercatorZ = altitudeFromMercatorZ; +exports.asyncAll = asyncAll; +exports.bezier = bezier; +exports.bindAll = bindAll; +exports.browser = exported; +exports.bufferConvexPolygon = bufferConvexPolygon; +exports.cacheEntryPossiblyAdded = cacheEntryPossiblyAdded; +exports.clamp = clamp; +exports.clearTileCache = clearTileCache; +exports.clipLine = clipLine; +exports.clone = clone$1; +exports.clone$1 = clone; +exports.collisionCircleLayout = collisionCircleLayout; +exports.config = config; +exports.conjugate = conjugate; +exports.create = create$2; +exports.create$1 = create$1; +exports.create$2 = create; +exports.createExpression = createExpression; +exports.createLayout = createLayout; +exports.createStyleLayer = createStyleLayer; +exports.cross = cross; +exports.deepEqual = deepEqual; +exports.degToRad = degToRad; +exports.div = div; +exports.dot = dot; +exports.ease = ease; +exports.easeCubicInOut = easeCubicInOut; +exports.emitValidationErrors = emitValidationErrors; +exports.endsWith = endsWith; +exports.enforceCacheSizeLimit = enforceCacheSizeLimit; +exports.evaluateSizeForFeature = evaluateSizeForFeature; +exports.evaluateSizeForZoom = evaluateSizeForZoom; +exports.evaluateVariableOffset = evaluateVariableOffset; +exports.evented = evented; +exports.exactEquals = exactEquals$2; +exports.exactEquals$1 = exactEquals; +exports.extend = extend; +exports.featureFilter = createFilter; +exports.filterObject = filterObject; +exports.fromMat4 = fromMat4; +exports.fromQuat = fromQuat; +exports.fromRotation = fromRotation; +exports.getAnchorAlignment = getAnchorAlignment; +exports.getAnchorJustification = getAnchorJustification; +exports.getBounds = getBounds; +exports.getImage = getImage; +exports.getJSON = getJSON; +exports.getMapSessionAPI = getMapSessionAPI; +exports.getRTLTextPluginStatus = getRTLTextPluginStatus; +exports.getReferrer = getReferrer; +exports.getVideo = getVideo; +exports.identity = identity; +exports.identity$1 = identity$1; +exports.invert = invert; +exports.isMapboxURL = isMapboxURL; +exports.latFromMercatorY = latFromMercatorY; +exports.len = len; +exports.length = length; +exports.length$1 = length$2; +exports.loadVectorTile = loadVectorTile; +exports.makeRequest = makeRequest; +exports.mercatorXfromLng = mercatorXfromLng$1; +exports.mercatorYfromLat = mercatorYfromLat$1; +exports.mercatorZfromAltitude = mercatorZfromAltitude; +exports.mul = mul; +exports.mul$1 = mul$1; +exports.multiply = multiply; +exports.mvt = vectorTile; +exports.nextPowerOfTwo = nextPowerOfTwo; +exports.normalize = normalize; +exports.normalize$1 = normalize$2; +exports.number = number; +exports.offscreenCanvasSupported = offscreenCanvasSupported; +exports.ortho = ortho; +exports.pbf = pbf; +exports.perspective = perspective; +exports.pick = pick; +exports.plugin = plugin; +exports.polygonIntersectsBox = polygonIntersectsBox; +exports.polygonIntersectsPolygon = polygonIntersectsPolygon; +exports.polygonizeBounds = polygonizeBounds; +exports.posAttributes = posAttributes; +exports.postMapLoadEvent = postMapLoadEvent; +exports.postTurnstileEvent = postTurnstileEvent; +exports.potpack = potpack; +exports.prevPowerOfTwo = prevPowerOfTwo; +exports.radToDeg = radToDeg; +exports.refProperties = refProperties; +exports.registerForPluginStateChange = registerForPluginStateChange; +exports.renderColorRamp = renderColorRamp; +exports.rotate = rotate; +exports.rotateX = rotateX; +exports.rotateX$1 = rotateX$1; +exports.rotateY = rotateY; +exports.rotateZ = rotateZ; +exports.rotateZ$1 = rotateZ$1; +exports.scale = scale; +exports.scale$1 = scale$2; +exports.scale$2 = scale$1; +exports.scaleAndAdd = scaleAndAdd; +exports.setCacheLimits = setCacheLimits; +exports.setRTLTextPlugin = setRTLTextPlugin; +exports.styleSpec = spec; +exports.sub = sub; +exports.subtract = subtract; +exports.symbolSize = symbolSize; +exports.transformMat3 = transformMat3; +exports.transformMat4 = transformMat4$1; +exports.transformQuat = transformQuat; +exports.translate = translate$1; +exports.triggerPluginCompletionEvent = triggerPluginCompletionEvent; +exports.uniqueId = uniqueId; +exports.validateCustomStyleLayer = validateCustomStyleLayer; +exports.validateLight = validateLight$1; +exports.validateStyle = validateStyle; +exports.values = values; +exports.vectorTile = vectorTile; +exports.version = version; +exports.warnOnce = warnOnce; +exports.webpSupported = exported$1; +exports.window = window$1; +exports.wrap = wrap; + +}); + +define(['./shared'], function (ref_properties) { 'use strict'; + +function stringify(obj) { + const type = typeof obj; + if (type === 'number' || type === 'boolean' || type === 'string' || obj === undefined || obj === null) + return JSON.stringify(obj); + if (Array.isArray(obj)) { + let str = '['; + for (const val of obj) { + str += `${ stringify(val) },`; + } + return `${ str }]`; + } + const keys = Object.keys(obj).sort(); + let str = '{'; + for (let i = 0; i < keys.length; i++) { + str += `${ JSON.stringify(keys[i]) }:${ stringify(obj[keys[i]]) },`; + } + return `${ str }}`; +} +function getKey(layer) { + let key = ''; + for (const k of ref_properties.refProperties) { + key += `/${ stringify(layer[k]) }`; + } + return key; +} +function groupByLayout(layers, cachedKeys) { + const groups = {}; + for (let i = 0; i < layers.length; i++) { + const k = cachedKeys && cachedKeys[layers[i].id] || getKey(layers[i]); + if (cachedKeys) + cachedKeys[layers[i].id] = k; + let group = groups[k]; + if (!group) { + group = groups[k] = []; + } + group.push(layers[i]); + } + const result = []; + for (const k in groups) { + result.push(groups[k]); + } + return result; +} + +class StyleLayerIndex { + constructor(layerConfigs) { + this.keyCache = {}; + if (layerConfigs) { + this.replace(layerConfigs); + } + } + replace(layerConfigs) { + this._layerConfigs = {}; + this._layers = {}; + this.update(layerConfigs, []); + } + update(layerConfigs, removedIds) { + for (const layerConfig of layerConfigs) { + this._layerConfigs[layerConfig.id] = layerConfig; + const layer = this._layers[layerConfig.id] = ref_properties.createStyleLayer(layerConfig); + layer._featureFilter = ref_properties.featureFilter(layer.filter); + if (this.keyCache[layerConfig.id]) + delete this.keyCache[layerConfig.id]; + } + for (const id of removedIds) { + delete this.keyCache[id]; + delete this._layerConfigs[id]; + delete this._layers[id]; + } + this.familiesBySource = {}; + const groups = groupByLayout(ref_properties.values(this._layerConfigs), this.keyCache); + for (const layerConfigs of groups) { + const layers = layerConfigs.map(layerConfig => this._layers[layerConfig.id]); + const layer = layers[0]; + if (layer.visibility === 'none') { + continue; + } + const sourceId = layer.source || ''; + let sourceGroup = this.familiesBySource[sourceId]; + if (!sourceGroup) { + sourceGroup = this.familiesBySource[sourceId] = {}; + } + const sourceLayerId = layer.sourceLayer || '_geojsonTileLayer'; + let sourceLayerFamilies = sourceGroup[sourceLayerId]; + if (!sourceLayerFamilies) { + sourceLayerFamilies = sourceGroup[sourceLayerId] = []; + } + sourceLayerFamilies.push(layers); + } + } +} + +const {ImageBitmap} = ref_properties.window; +class RasterDEMTileWorkerSource { + loadTile(params, callback) { + const {uid, encoding, rawImageData, padding, buildQuadTree} = params; + const imagePixels = ImageBitmap && rawImageData instanceof ImageBitmap ? this.getImageData(rawImageData, padding) : rawImageData; + const dem = new ref_properties.DEMData(uid, imagePixels, encoding, padding < 1, buildQuadTree); + callback(null, dem); + } + getImageData(imgBitmap, padding) { + if (!this.offscreenCanvas || !this.offscreenCanvasContext) { + this.offscreenCanvas = new OffscreenCanvas(imgBitmap.width, imgBitmap.height); + this.offscreenCanvasContext = this.offscreenCanvas.getContext('2d'); + } + this.offscreenCanvas.width = imgBitmap.width; + this.offscreenCanvas.height = imgBitmap.height; + this.offscreenCanvasContext.drawImage(imgBitmap, 0, 0, imgBitmap.width, imgBitmap.height); + const imgData = this.offscreenCanvasContext.getImageData(-padding, -padding, imgBitmap.width + 2 * padding, imgBitmap.height + 2 * padding); + this.offscreenCanvasContext.clearRect(0, 0, this.offscreenCanvas.width, this.offscreenCanvas.height); + return new ref_properties.RGBAImage({ + width: imgData.width, + height: imgData.height + }, imgData.data); + } +} + +var geojsonRewind = rewind; +function rewind(gj, outer) { + var type = gj && gj.type, i; + if (type === 'FeatureCollection') { + for (i = 0; i < gj.features.length; i++) + rewind(gj.features[i], outer); + } else if (type === 'GeometryCollection') { + for (i = 0; i < gj.geometries.length; i++) + rewind(gj.geometries[i], outer); + } else if (type === 'Feature') { + rewind(gj.geometry, outer); + } else if (type === 'Polygon') { + rewindRings(gj.coordinates, outer); + } else if (type === 'MultiPolygon') { + for (i = 0; i < gj.coordinates.length; i++) + rewindRings(gj.coordinates[i], outer); + } + return gj; +} +function rewindRings(rings, outer) { + if (rings.length === 0) + return; + rewindRing(rings[0], outer); + for (var i = 1; i < rings.length; i++) { + rewindRing(rings[i], !outer); + } +} +function rewindRing(ring, dir) { + var area = 0; + for (var i = 0, len = ring.length, j = len - 1; i < len; j = i++) { + area += (ring[i][0] - ring[j][0]) * (ring[j][1] + ring[i][1]); + } + if (area >= 0 !== !!dir) + ring.reverse(); +} + +const toGeoJSON = ref_properties.vectorTile.VectorTileFeature.prototype.toGeoJSON; +class FeatureWrapper { + constructor(feature) { + this._feature = feature; + this.extent = ref_properties.EXTENT; + this.type = feature.type; + this.properties = feature.tags; + if ('id' in feature && !isNaN(feature.id)) { + this.id = parseInt(feature.id, 10); + } + } + loadGeometry() { + if (this._feature.type === 1) { + const geometry = []; + for (const point of this._feature.geometry) { + geometry.push([new ref_properties.Point$1(point[0], point[1])]); + } + return geometry; + } else { + const geometry = []; + for (const ring of this._feature.geometry) { + const newRing = []; + for (const point of ring) { + newRing.push(new ref_properties.Point$1(point[0], point[1])); + } + geometry.push(newRing); + } + return geometry; + } + } + toGeoJSON(x, y, z) { + return toGeoJSON.call(this, x, y, z); + } +} +class GeoJSONWrapper { + constructor(features) { + this.layers = { '_geojsonTileLayer': this }; + this.name = '_geojsonTileLayer'; + this.extent = ref_properties.EXTENT; + this.length = features.length; + this._features = features; + } + feature(i) { + return new FeatureWrapper(this._features[i]); + } +} + +var VectorTileFeature = ref_properties.vectorTile.VectorTileFeature; +var geojson_wrapper = GeoJSONWrapper$1; +function GeoJSONWrapper$1(features, options) { + this.options = options || {}; + this.features = features; + this.length = features.length; +} +GeoJSONWrapper$1.prototype.feature = function (i) { + return new FeatureWrapper$1(this.features[i], this.options.extent); +}; +function FeatureWrapper$1(feature, extent) { + this.id = typeof feature.id === 'number' ? feature.id : undefined; + this.type = feature.type; + this.rawGeometry = feature.type === 1 ? [feature.geometry] : feature.geometry; + this.properties = feature.tags; + this.extent = extent || 4096; +} +FeatureWrapper$1.prototype.loadGeometry = function () { + var rings = this.rawGeometry; + this.geometry = []; + for (var i = 0; i < rings.length; i++) { + var ring = rings[i]; + var newRing = []; + for (var j = 0; j < ring.length; j++) { + newRing.push(new ref_properties.Point$1(ring[j][0], ring[j][1])); + } + this.geometry.push(newRing); + } + return this.geometry; +}; +FeatureWrapper$1.prototype.bbox = function () { + if (!this.geometry) + this.loadGeometry(); + var rings = this.geometry; + var x1 = Infinity; + var x2 = -Infinity; + var y1 = Infinity; + var y2 = -Infinity; + for (var i = 0; i < rings.length; i++) { + var ring = rings[i]; + for (var j = 0; j < ring.length; j++) { + var coord = ring[j]; + x1 = Math.min(x1, coord.x); + x2 = Math.max(x2, coord.x); + y1 = Math.min(y1, coord.y); + y2 = Math.max(y2, coord.y); + } + } + return [ + x1, + y1, + x2, + y2 + ]; +}; +FeatureWrapper$1.prototype.toGeoJSON = VectorTileFeature.prototype.toGeoJSON; + +var vtPbf = fromVectorTileJs; +var fromVectorTileJs_1 = fromVectorTileJs; +var fromGeojsonVt_1 = fromGeojsonVt; +var GeoJSONWrapper_1 = geojson_wrapper; +function fromVectorTileJs(tile) { + var out = new ref_properties.pbf(); + writeTile(tile, out); + return out.finish(); +} +function fromGeojsonVt(layers, options) { + options = options || {}; + var l = {}; + for (var k in layers) { + l[k] = new geojson_wrapper(layers[k].features, options); + l[k].name = k; + l[k].version = options.version; + l[k].extent = options.extent; + } + return fromVectorTileJs({ layers: l }); +} +function writeTile(tile, pbf) { + for (var key in tile.layers) { + pbf.writeMessage(3, writeLayer, tile.layers[key]); + } +} +function writeLayer(layer, pbf) { + pbf.writeVarintField(15, layer.version || 1); + pbf.writeStringField(1, layer.name || ''); + pbf.writeVarintField(5, layer.extent || 4096); + var i; + var context = { + keys: [], + values: [], + keycache: {}, + valuecache: {} + }; + for (i = 0; i < layer.length; i++) { + context.feature = layer.feature(i); + pbf.writeMessage(2, writeFeature, context); + } + var keys = context.keys; + for (i = 0; i < keys.length; i++) { + pbf.writeStringField(3, keys[i]); + } + var values = context.values; + for (i = 0; i < values.length; i++) { + pbf.writeMessage(4, writeValue, values[i]); + } +} +function writeFeature(context, pbf) { + var feature = context.feature; + if (feature.id !== undefined) { + pbf.writeVarintField(1, feature.id); + } + pbf.writeMessage(2, writeProperties, context); + pbf.writeVarintField(3, feature.type); + pbf.writeMessage(4, writeGeometry, feature); +} +function writeProperties(context, pbf) { + var feature = context.feature; + var keys = context.keys; + var values = context.values; + var keycache = context.keycache; + var valuecache = context.valuecache; + for (var key in feature.properties) { + var keyIndex = keycache[key]; + if (typeof keyIndex === 'undefined') { + keys.push(key); + keyIndex = keys.length - 1; + keycache[key] = keyIndex; + } + pbf.writeVarint(keyIndex); + var value = feature.properties[key]; + var type = typeof value; + if (type !== 'string' && type !== 'boolean' && type !== 'number') { + value = JSON.stringify(value); + } + var valueKey = type + ':' + value; + var valueIndex = valuecache[valueKey]; + if (typeof valueIndex === 'undefined') { + values.push(value); + valueIndex = values.length - 1; + valuecache[valueKey] = valueIndex; + } + pbf.writeVarint(valueIndex); + } +} +function command(cmd, length) { + return (length << 3) + (cmd & 7); +} +function zigzag(num) { + return num << 1 ^ num >> 31; +} +function writeGeometry(feature, pbf) { + var geometry = feature.loadGeometry(); + var type = feature.type; + var x = 0; + var y = 0; + var rings = geometry.length; + for (var r = 0; r < rings; r++) { + var ring = geometry[r]; + var count = 1; + if (type === 1) { + count = ring.length; + } + pbf.writeVarint(command(1, count)); + var lineCount = type === 3 ? ring.length - 1 : ring.length; + for (var i = 0; i < lineCount; i++) { + if (i === 1 && type !== 1) { + pbf.writeVarint(command(2, lineCount - 1)); + } + var dx = ring[i].x - x; + var dy = ring[i].y - y; + pbf.writeVarint(zigzag(dx)); + pbf.writeVarint(zigzag(dy)); + x += dx; + y += dy; + } + if (type === 3) { + pbf.writeVarint(command(7, 1)); + } + } +} +function writeValue(value, pbf) { + var type = typeof value; + if (type === 'string') { + pbf.writeStringField(1, value); + } else if (type === 'boolean') { + pbf.writeBooleanField(7, value); + } else if (type === 'number') { + if (value % 1 !== 0) { + pbf.writeDoubleField(3, value); + } else if (value < 0) { + pbf.writeSVarintField(6, value); + } else { + pbf.writeVarintField(5, value); + } + } +} +vtPbf.fromVectorTileJs = fromVectorTileJs_1; +vtPbf.fromGeojsonVt = fromGeojsonVt_1; +vtPbf.GeoJSONWrapper = GeoJSONWrapper_1; + +function sortKD(ids, coords, nodeSize, left, right, depth) { + if (right - left <= nodeSize) + return; + const m = left + right >> 1; + select(ids, coords, m, left, right, depth % 2); + sortKD(ids, coords, nodeSize, left, m - 1, depth + 1); + sortKD(ids, coords, nodeSize, m + 1, right, depth + 1); +} +function select(ids, coords, k, left, right, inc) { + while (right > left) { + if (right - left > 600) { + const n = right - left + 1; + const m = k - left + 1; + const z = Math.log(n); + const s = 0.5 * Math.exp(2 * z / 3); + const sd = 0.5 * Math.sqrt(z * s * (n - s) / n) * (m - n / 2 < 0 ? -1 : 1); + const newLeft = Math.max(left, Math.floor(k - m * s / n + sd)); + const newRight = Math.min(right, Math.floor(k + (n - m) * s / n + sd)); + select(ids, coords, k, newLeft, newRight, inc); + } + const t = coords[2 * k + inc]; + let i = left; + let j = right; + swapItem(ids, coords, left, k); + if (coords[2 * right + inc] > t) + swapItem(ids, coords, left, right); + while (i < j) { + swapItem(ids, coords, i, j); + i++; + j--; + while (coords[2 * i + inc] < t) + i++; + while (coords[2 * j + inc] > t) + j--; + } + if (coords[2 * left + inc] === t) + swapItem(ids, coords, left, j); + else { + j++; + swapItem(ids, coords, j, right); + } + if (j <= k) + left = j + 1; + if (k <= j) + right = j - 1; + } +} +function swapItem(ids, coords, i, j) { + swap(ids, i, j); + swap(coords, 2 * i, 2 * j); + swap(coords, 2 * i + 1, 2 * j + 1); +} +function swap(arr, i, j) { + const tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; +} + +function range(ids, coords, minX, minY, maxX, maxY, nodeSize) { + const stack = [ + 0, + ids.length - 1, + 0 + ]; + const result = []; + let x, y; + while (stack.length) { + const axis = stack.pop(); + const right = stack.pop(); + const left = stack.pop(); + if (right - left <= nodeSize) { + for (let i = left; i <= right; i++) { + x = coords[2 * i]; + y = coords[2 * i + 1]; + if (x >= minX && x <= maxX && y >= minY && y <= maxY) + result.push(ids[i]); + } + continue; + } + const m = Math.floor((left + right) / 2); + x = coords[2 * m]; + y = coords[2 * m + 1]; + if (x >= minX && x <= maxX && y >= minY && y <= maxY) + result.push(ids[m]); + const nextAxis = (axis + 1) % 2; + if (axis === 0 ? minX <= x : minY <= y) { + stack.push(left); + stack.push(m - 1); + stack.push(nextAxis); + } + if (axis === 0 ? maxX >= x : maxY >= y) { + stack.push(m + 1); + stack.push(right); + stack.push(nextAxis); + } + } + return result; +} + +function within(ids, coords, qx, qy, r, nodeSize) { + const stack = [ + 0, + ids.length - 1, + 0 + ]; + const result = []; + const r2 = r * r; + while (stack.length) { + const axis = stack.pop(); + const right = stack.pop(); + const left = stack.pop(); + if (right - left <= nodeSize) { + for (let i = left; i <= right; i++) { + if (sqDist(coords[2 * i], coords[2 * i + 1], qx, qy) <= r2) + result.push(ids[i]); + } + continue; + } + const m = Math.floor((left + right) / 2); + const x = coords[2 * m]; + const y = coords[2 * m + 1]; + if (sqDist(x, y, qx, qy) <= r2) + result.push(ids[m]); + const nextAxis = (axis + 1) % 2; + if (axis === 0 ? qx - r <= x : qy - r <= y) { + stack.push(left); + stack.push(m - 1); + stack.push(nextAxis); + } + if (axis === 0 ? qx + r >= x : qy + r >= y) { + stack.push(m + 1); + stack.push(right); + stack.push(nextAxis); + } + } + return result; +} +function sqDist(ax, ay, bx, by) { + const dx = ax - bx; + const dy = ay - by; + return dx * dx + dy * dy; +} + +const defaultGetX = p => p[0]; +const defaultGetY = p => p[1]; +class KDBush { + constructor(points, getX = defaultGetX, getY = defaultGetY, nodeSize = 64, ArrayType = Float64Array) { + this.nodeSize = nodeSize; + this.points = points; + const IndexArrayType = points.length < 65536 ? Uint16Array : Uint32Array; + const ids = this.ids = new IndexArrayType(points.length); + const coords = this.coords = new ArrayType(points.length * 2); + for (let i = 0; i < points.length; i++) { + ids[i] = i; + coords[2 * i] = getX(points[i]); + coords[2 * i + 1] = getY(points[i]); + } + sortKD(ids, coords, nodeSize, 0, ids.length - 1, 0); + } + range(minX, minY, maxX, maxY) { + return range(this.ids, this.coords, minX, minY, maxX, maxY, this.nodeSize); + } + within(x, y, r) { + return within(this.ids, this.coords, x, y, r, this.nodeSize); + } +} + +const defaultOptions = { + minZoom: 0, + maxZoom: 16, + minPoints: 2, + radius: 40, + extent: 512, + nodeSize: 64, + log: false, + generateId: false, + reduce: null, + map: props => props +}; +const fround = Math.fround || (tmp => x => { + tmp[0] = +x; + return tmp[0]; +})(new Float32Array(1)); +class Supercluster { + constructor(options) { + this.options = extend(Object.create(defaultOptions), options); + this.trees = new Array(this.options.maxZoom + 1); + } + load(points) { + const {log, minZoom, maxZoom, nodeSize} = this.options; + if (log) + console.time('total time'); + const timerId = `prepare ${ points.length } points`; + if (log) + console.time(timerId); + this.points = points; + let clusters = []; + for (let i = 0; i < points.length; i++) { + if (!points[i].geometry) + continue; + clusters.push(createPointCluster(points[i], i)); + } + this.trees[maxZoom + 1] = new KDBush(clusters, getX, getY, nodeSize, Float32Array); + if (log) + console.timeEnd(timerId); + for (let z = maxZoom; z >= minZoom; z--) { + const now = +Date.now(); + clusters = this._cluster(clusters, z); + this.trees[z] = new KDBush(clusters, getX, getY, nodeSize, Float32Array); + if (log) + console.log('z%d: %d clusters in %dms', z, clusters.length, +Date.now() - now); + } + if (log) + console.timeEnd('total time'); + return this; + } + getClusters(bbox, zoom) { + let minLng = ((bbox[0] + 180) % 360 + 360) % 360 - 180; + const minLat = Math.max(-90, Math.min(90, bbox[1])); + let maxLng = bbox[2] === 180 ? 180 : ((bbox[2] + 180) % 360 + 360) % 360 - 180; + const maxLat = Math.max(-90, Math.min(90, bbox[3])); + if (bbox[2] - bbox[0] >= 360) { + minLng = -180; + maxLng = 180; + } else if (minLng > maxLng) { + const easternHem = this.getClusters([ + minLng, + minLat, + 180, + maxLat + ], zoom); + const westernHem = this.getClusters([ + -180, + minLat, + maxLng, + maxLat + ], zoom); + return easternHem.concat(westernHem); + } + const tree = this.trees[this._limitZoom(zoom)]; + const ids = tree.range(lngX(minLng), latY(maxLat), lngX(maxLng), latY(minLat)); + const clusters = []; + for (const id of ids) { + const c = tree.points[id]; + clusters.push(c.numPoints ? getClusterJSON(c) : this.points[c.index]); + } + return clusters; + } + getChildren(clusterId) { + const originId = this._getOriginId(clusterId); + const originZoom = this._getOriginZoom(clusterId); + const errorMsg = 'No cluster with the specified id.'; + const index = this.trees[originZoom]; + if (!index) + throw new Error(errorMsg); + const origin = index.points[originId]; + if (!origin) + throw new Error(errorMsg); + const r = this.options.radius / (this.options.extent * Math.pow(2, originZoom - 1)); + const ids = index.within(origin.x, origin.y, r); + const children = []; + for (const id of ids) { + const c = index.points[id]; + if (c.parentId === clusterId) { + children.push(c.numPoints ? getClusterJSON(c) : this.points[c.index]); + } + } + if (children.length === 0) + throw new Error(errorMsg); + return children; + } + getLeaves(clusterId, limit, offset) { + limit = limit || 10; + offset = offset || 0; + const leaves = []; + this._appendLeaves(leaves, clusterId, limit, offset, 0); + return leaves; + } + getTile(z, x, y) { + const tree = this.trees[this._limitZoom(z)]; + const z2 = Math.pow(2, z); + const {extent, radius} = this.options; + const p = radius / extent; + const top = (y - p) / z2; + const bottom = (y + 1 + p) / z2; + const tile = { features: [] }; + this._addTileFeatures(tree.range((x - p) / z2, top, (x + 1 + p) / z2, bottom), tree.points, x, y, z2, tile); + if (x === 0) { + this._addTileFeatures(tree.range(1 - p / z2, top, 1, bottom), tree.points, z2, y, z2, tile); + } + if (x === z2 - 1) { + this._addTileFeatures(tree.range(0, top, p / z2, bottom), tree.points, -1, y, z2, tile); + } + return tile.features.length ? tile : null; + } + getClusterExpansionZoom(clusterId) { + let expansionZoom = this._getOriginZoom(clusterId) - 1; + while (expansionZoom <= this.options.maxZoom) { + const children = this.getChildren(clusterId); + expansionZoom++; + if (children.length !== 1) + break; + clusterId = children[0].properties.cluster_id; + } + return expansionZoom; + } + _appendLeaves(result, clusterId, limit, offset, skipped) { + const children = this.getChildren(clusterId); + for (const child of children) { + const props = child.properties; + if (props && props.cluster) { + if (skipped + props.point_count <= offset) { + skipped += props.point_count; + } else { + skipped = this._appendLeaves(result, props.cluster_id, limit, offset, skipped); + } + } else if (skipped < offset) { + skipped++; + } else { + result.push(child); + } + if (result.length === limit) + break; + } + return skipped; + } + _addTileFeatures(ids, points, x, y, z2, tile) { + for (const i of ids) { + const c = points[i]; + const isCluster = c.numPoints; + const f = { + type: 1, + geometry: [[ + Math.round(this.options.extent * (c.x * z2 - x)), + Math.round(this.options.extent * (c.y * z2 - y)) + ]], + tags: isCluster ? getClusterProperties(c) : this.points[c.index].properties + }; + let id; + if (isCluster) { + id = c.id; + } else if (this.options.generateId) { + id = c.index; + } else if (this.points[c.index].id) { + id = this.points[c.index].id; + } + if (id !== undefined) + f.id = id; + tile.features.push(f); + } + } + _limitZoom(z) { + return Math.max(this.options.minZoom, Math.min(+z, this.options.maxZoom + 1)); + } + _cluster(points, zoom) { + const clusters = []; + const {radius, extent, reduce, minPoints} = this.options; + const r = radius / (extent * Math.pow(2, zoom)); + for (let i = 0; i < points.length; i++) { + const p = points[i]; + if (p.zoom <= zoom) + continue; + p.zoom = zoom; + const tree = this.trees[zoom + 1]; + const neighborIds = tree.within(p.x, p.y, r); + const numPointsOrigin = p.numPoints || 1; + let numPoints = numPointsOrigin; + for (const neighborId of neighborIds) { + const b = tree.points[neighborId]; + if (b.zoom > zoom) + numPoints += b.numPoints || 1; + } + if (numPoints >= minPoints) { + let wx = p.x * numPointsOrigin; + let wy = p.y * numPointsOrigin; + let clusterProperties = reduce && numPointsOrigin > 1 ? this._map(p, true) : null; + const id = (i << 5) + (zoom + 1) + this.points.length; + for (const neighborId of neighborIds) { + const b = tree.points[neighborId]; + if (b.zoom <= zoom) + continue; + b.zoom = zoom; + const numPoints2 = b.numPoints || 1; + wx += b.x * numPoints2; + wy += b.y * numPoints2; + b.parentId = id; + if (reduce) { + if (!clusterProperties) + clusterProperties = this._map(p, true); + reduce(clusterProperties, this._map(b)); + } + } + p.parentId = id; + clusters.push(createCluster(wx / numPoints, wy / numPoints, id, numPoints, clusterProperties)); + } else { + clusters.push(p); + if (numPoints > 1) { + for (const neighborId of neighborIds) { + const b = tree.points[neighborId]; + if (b.zoom <= zoom) + continue; + b.zoom = zoom; + clusters.push(b); + } + } + } + } + return clusters; + } + _getOriginId(clusterId) { + return clusterId - this.points.length >> 5; + } + _getOriginZoom(clusterId) { + return (clusterId - this.points.length) % 32; + } + _map(point, clone) { + if (point.numPoints) { + return clone ? extend({}, point.properties) : point.properties; + } + const original = this.points[point.index].properties; + const result = this.options.map(original); + return clone && result === original ? extend({}, result) : result; + } +} +function createCluster(x, y, id, numPoints, properties) { + return { + x: fround(x), + y: fround(y), + zoom: Infinity, + id, + parentId: -1, + numPoints, + properties + }; +} +function createPointCluster(p, id) { + const [x, y] = p.geometry.coordinates; + return { + x: fround(lngX(x)), + y: fround(latY(y)), + zoom: Infinity, + index: id, + parentId: -1 + }; +} +function getClusterJSON(cluster) { + return { + type: 'Feature', + id: cluster.id, + properties: getClusterProperties(cluster), + geometry: { + type: 'Point', + coordinates: [ + xLng(cluster.x), + yLat(cluster.y) + ] + } + }; +} +function getClusterProperties(cluster) { + const count = cluster.numPoints; + const abbrev = count >= 10000 ? `${ Math.round(count / 1000) }k` : count >= 1000 ? `${ Math.round(count / 100) / 10 }k` : count; + return extend(extend({}, cluster.properties), { + cluster: true, + cluster_id: cluster.id, + point_count: count, + point_count_abbreviated: abbrev + }); +} +function lngX(lng) { + return lng / 360 + 0.5; +} +function latY(lat) { + const sin = Math.sin(lat * Math.PI / 180); + const y = 0.5 - 0.25 * Math.log((1 + sin) / (1 - sin)) / Math.PI; + return y < 0 ? 0 : y > 1 ? 1 : y; +} +function xLng(x) { + return (x - 0.5) * 360; +} +function yLat(y) { + const y2 = (180 - y * 360) * Math.PI / 180; + return 360 * Math.atan(Math.exp(y2)) / Math.PI - 90; +} +function extend(dest, src) { + for (const id in src) + dest[id] = src[id]; + return dest; +} +function getX(p) { + return p.x; +} +function getY(p) { + return p.y; +} + +function simplify(coords, first, last, sqTolerance) { + var maxSqDist = sqTolerance; + var mid = last - first >> 1; + var minPosToMid = last - first; + var index; + var ax = coords[first]; + var ay = coords[first + 1]; + var bx = coords[last]; + var by = coords[last + 1]; + for (var i = first + 3; i < last; i += 3) { + var d = getSqSegDist(coords[i], coords[i + 1], ax, ay, bx, by); + if (d > maxSqDist) { + index = i; + maxSqDist = d; + } else if (d === maxSqDist) { + var posToMid = Math.abs(i - mid); + if (posToMid < minPosToMid) { + index = i; + minPosToMid = posToMid; + } + } + } + if (maxSqDist > sqTolerance) { + if (index - first > 3) + simplify(coords, first, index, sqTolerance); + coords[index + 2] = maxSqDist; + if (last - index > 3) + simplify(coords, index, last, sqTolerance); + } +} +function getSqSegDist(px, py, x, y, bx, by) { + var dx = bx - x; + var dy = by - y; + if (dx !== 0 || dy !== 0) { + var t = ((px - x) * dx + (py - y) * dy) / (dx * dx + dy * dy); + if (t > 1) { + x = bx; + y = by; + } else if (t > 0) { + x += dx * t; + y += dy * t; + } + } + dx = px - x; + dy = py - y; + return dx * dx + dy * dy; +} + +function createFeature(id, type, geom, tags) { + var feature = { + id: typeof id === 'undefined' ? null : id, + type: type, + geometry: geom, + tags: tags, + minX: Infinity, + minY: Infinity, + maxX: -Infinity, + maxY: -Infinity + }; + calcBBox(feature); + return feature; +} +function calcBBox(feature) { + var geom = feature.geometry; + var type = feature.type; + if (type === 'Point' || type === 'MultiPoint' || type === 'LineString') { + calcLineBBox(feature, geom); + } else if (type === 'Polygon' || type === 'MultiLineString') { + for (var i = 0; i < geom.length; i++) { + calcLineBBox(feature, geom[i]); + } + } else if (type === 'MultiPolygon') { + for (i = 0; i < geom.length; i++) { + for (var j = 0; j < geom[i].length; j++) { + calcLineBBox(feature, geom[i][j]); + } + } + } +} +function calcLineBBox(feature, geom) { + for (var i = 0; i < geom.length; i += 3) { + feature.minX = Math.min(feature.minX, geom[i]); + feature.minY = Math.min(feature.minY, geom[i + 1]); + feature.maxX = Math.max(feature.maxX, geom[i]); + feature.maxY = Math.max(feature.maxY, geom[i + 1]); + } +} + +function convert(data, options) { + var features = []; + if (data.type === 'FeatureCollection') { + for (var i = 0; i < data.features.length; i++) { + convertFeature(features, data.features[i], options, i); + } + } else if (data.type === 'Feature') { + convertFeature(features, data, options); + } else { + convertFeature(features, { geometry: data }, options); + } + return features; +} +function convertFeature(features, geojson, options, index) { + if (!geojson.geometry) + return; + var coords = geojson.geometry.coordinates; + var type = geojson.geometry.type; + var tolerance = Math.pow(options.tolerance / ((1 << options.maxZoom) * options.extent), 2); + var geometry = []; + var id = geojson.id; + if (options.promoteId) { + id = geojson.properties[options.promoteId]; + } else if (options.generateId) { + id = index || 0; + } + if (type === 'Point') { + convertPoint(coords, geometry); + } else if (type === 'MultiPoint') { + for (var i = 0; i < coords.length; i++) { + convertPoint(coords[i], geometry); + } + } else if (type === 'LineString') { + convertLine(coords, geometry, tolerance, false); + } else if (type === 'MultiLineString') { + if (options.lineMetrics) { + for (i = 0; i < coords.length; i++) { + geometry = []; + convertLine(coords[i], geometry, tolerance, false); + features.push(createFeature(id, 'LineString', geometry, geojson.properties)); + } + return; + } else { + convertLines(coords, geometry, tolerance, false); + } + } else if (type === 'Polygon') { + convertLines(coords, geometry, tolerance, true); + } else if (type === 'MultiPolygon') { + for (i = 0; i < coords.length; i++) { + var polygon = []; + convertLines(coords[i], polygon, tolerance, true); + geometry.push(polygon); + } + } else if (type === 'GeometryCollection') { + for (i = 0; i < geojson.geometry.geometries.length; i++) { + convertFeature(features, { + id: id, + geometry: geojson.geometry.geometries[i], + properties: geojson.properties + }, options, index); + } + return; + } else { + throw new Error('Input data is not a valid GeoJSON object.'); + } + features.push(createFeature(id, type, geometry, geojson.properties)); +} +function convertPoint(coords, out) { + out.push(projectX(coords[0])); + out.push(projectY(coords[1])); + out.push(0); +} +function convertLine(ring, out, tolerance, isPolygon) { + var x0, y0; + var size = 0; + for (var j = 0; j < ring.length; j++) { + var x = projectX(ring[j][0]); + var y = projectY(ring[j][1]); + out.push(x); + out.push(y); + out.push(0); + if (j > 0) { + if (isPolygon) { + size += (x0 * y - x * y0) / 2; + } else { + size += Math.sqrt(Math.pow(x - x0, 2) + Math.pow(y - y0, 2)); + } + } + x0 = x; + y0 = y; + } + var last = out.length - 3; + out[2] = 1; + simplify(out, 0, last, tolerance); + out[last + 2] = 1; + out.size = Math.abs(size); + out.start = 0; + out.end = out.size; +} +function convertLines(rings, out, tolerance, isPolygon) { + for (var i = 0; i < rings.length; i++) { + var geom = []; + convertLine(rings[i], geom, tolerance, isPolygon); + out.push(geom); + } +} +function projectX(x) { + return x / 360 + 0.5; +} +function projectY(y) { + var sin = Math.sin(y * Math.PI / 180); + var y2 = 0.5 - 0.25 * Math.log((1 + sin) / (1 - sin)) / Math.PI; + return y2 < 0 ? 0 : y2 > 1 ? 1 : y2; +} + +function clip(features, scale, k1, k2, axis, minAll, maxAll, options) { + k1 /= scale; + k2 /= scale; + if (minAll >= k1 && maxAll < k2) + return features; + else if (maxAll < k1 || minAll >= k2) + return null; + var clipped = []; + for (var i = 0; i < features.length; i++) { + var feature = features[i]; + var geometry = feature.geometry; + var type = feature.type; + var min = axis === 0 ? feature.minX : feature.minY; + var max = axis === 0 ? feature.maxX : feature.maxY; + if (min >= k1 && max < k2) { + clipped.push(feature); + continue; + } else if (max < k1 || min >= k2) { + continue; + } + var newGeometry = []; + if (type === 'Point' || type === 'MultiPoint') { + clipPoints(geometry, newGeometry, k1, k2, axis); + } else if (type === 'LineString') { + clipLine(geometry, newGeometry, k1, k2, axis, false, options.lineMetrics); + } else if (type === 'MultiLineString') { + clipLines(geometry, newGeometry, k1, k2, axis, false); + } else if (type === 'Polygon') { + clipLines(geometry, newGeometry, k1, k2, axis, true); + } else if (type === 'MultiPolygon') { + for (var j = 0; j < geometry.length; j++) { + var polygon = []; + clipLines(geometry[j], polygon, k1, k2, axis, true); + if (polygon.length) { + newGeometry.push(polygon); + } + } + } + if (newGeometry.length) { + if (options.lineMetrics && type === 'LineString') { + for (j = 0; j < newGeometry.length; j++) { + clipped.push(createFeature(feature.id, type, newGeometry[j], feature.tags)); + } + continue; + } + if (type === 'LineString' || type === 'MultiLineString') { + if (newGeometry.length === 1) { + type = 'LineString'; + newGeometry = newGeometry[0]; + } else { + type = 'MultiLineString'; + } + } + if (type === 'Point' || type === 'MultiPoint') { + type = newGeometry.length === 3 ? 'Point' : 'MultiPoint'; + } + clipped.push(createFeature(feature.id, type, newGeometry, feature.tags)); + } + } + return clipped.length ? clipped : null; +} +function clipPoints(geom, newGeom, k1, k2, axis) { + for (var i = 0; i < geom.length; i += 3) { + var a = geom[i + axis]; + if (a >= k1 && a <= k2) { + newGeom.push(geom[i]); + newGeom.push(geom[i + 1]); + newGeom.push(geom[i + 2]); + } + } +} +function clipLine(geom, newGeom, k1, k2, axis, isPolygon, trackMetrics) { + var slice = newSlice(geom); + var intersect = axis === 0 ? intersectX : intersectY; + var len = geom.start; + var segLen, t; + for (var i = 0; i < geom.length - 3; i += 3) { + var ax = geom[i]; + var ay = geom[i + 1]; + var az = geom[i + 2]; + var bx = geom[i + 3]; + var by = geom[i + 4]; + var a = axis === 0 ? ax : ay; + var b = axis === 0 ? bx : by; + var exited = false; + if (trackMetrics) + segLen = Math.sqrt(Math.pow(ax - bx, 2) + Math.pow(ay - by, 2)); + if (a < k1) { + if (b > k1) { + t = intersect(slice, ax, ay, bx, by, k1); + if (trackMetrics) + slice.start = len + segLen * t; + } + } else if (a > k2) { + if (b < k2) { + t = intersect(slice, ax, ay, bx, by, k2); + if (trackMetrics) + slice.start = len + segLen * t; + } + } else { + addPoint(slice, ax, ay, az); + } + if (b < k1 && a >= k1) { + t = intersect(slice, ax, ay, bx, by, k1); + exited = true; + } + if (b > k2 && a <= k2) { + t = intersect(slice, ax, ay, bx, by, k2); + exited = true; + } + if (!isPolygon && exited) { + if (trackMetrics) + slice.end = len + segLen * t; + newGeom.push(slice); + slice = newSlice(geom); + } + if (trackMetrics) + len += segLen; + } + var last = geom.length - 3; + ax = geom[last]; + ay = geom[last + 1]; + az = geom[last + 2]; + a = axis === 0 ? ax : ay; + if (a >= k1 && a <= k2) + addPoint(slice, ax, ay, az); + last = slice.length - 3; + if (isPolygon && last >= 3 && (slice[last] !== slice[0] || slice[last + 1] !== slice[1])) { + addPoint(slice, slice[0], slice[1], slice[2]); + } + if (slice.length) { + newGeom.push(slice); + } +} +function newSlice(line) { + var slice = []; + slice.size = line.size; + slice.start = line.start; + slice.end = line.end; + return slice; +} +function clipLines(geom, newGeom, k1, k2, axis, isPolygon) { + for (var i = 0; i < geom.length; i++) { + clipLine(geom[i], newGeom, k1, k2, axis, isPolygon, false); + } +} +function addPoint(out, x, y, z) { + out.push(x); + out.push(y); + out.push(z); +} +function intersectX(out, ax, ay, bx, by, x) { + var t = (x - ax) / (bx - ax); + out.push(x); + out.push(ay + (by - ay) * t); + out.push(1); + return t; +} +function intersectY(out, ax, ay, bx, by, y) { + var t = (y - ay) / (by - ay); + out.push(ax + (bx - ax) * t); + out.push(y); + out.push(1); + return t; +} + +function wrap(features, options) { + var buffer = options.buffer / options.extent; + var merged = features; + var left = clip(features, 1, -1 - buffer, buffer, 0, -1, 2, options); + var right = clip(features, 1, 1 - buffer, 2 + buffer, 0, -1, 2, options); + if (left || right) { + merged = clip(features, 1, -buffer, 1 + buffer, 0, -1, 2, options) || []; + if (left) + merged = shiftFeatureCoords(left, 1).concat(merged); + if (right) + merged = merged.concat(shiftFeatureCoords(right, -1)); + } + return merged; +} +function shiftFeatureCoords(features, offset) { + var newFeatures = []; + for (var i = 0; i < features.length; i++) { + var feature = features[i], type = feature.type; + var newGeometry; + if (type === 'Point' || type === 'MultiPoint' || type === 'LineString') { + newGeometry = shiftCoords(feature.geometry, offset); + } else if (type === 'MultiLineString' || type === 'Polygon') { + newGeometry = []; + for (var j = 0; j < feature.geometry.length; j++) { + newGeometry.push(shiftCoords(feature.geometry[j], offset)); + } + } else if (type === 'MultiPolygon') { + newGeometry = []; + for (j = 0; j < feature.geometry.length; j++) { + var newPolygon = []; + for (var k = 0; k < feature.geometry[j].length; k++) { + newPolygon.push(shiftCoords(feature.geometry[j][k], offset)); + } + newGeometry.push(newPolygon); + } + } + newFeatures.push(createFeature(feature.id, type, newGeometry, feature.tags)); + } + return newFeatures; +} +function shiftCoords(points, offset) { + var newPoints = []; + newPoints.size = points.size; + if (points.start !== undefined) { + newPoints.start = points.start; + newPoints.end = points.end; + } + for (var i = 0; i < points.length; i += 3) { + newPoints.push(points[i] + offset, points[i + 1], points[i + 2]); + } + return newPoints; +} + +function transformTile(tile, extent) { + if (tile.transformed) + return tile; + var z2 = 1 << tile.z, tx = tile.x, ty = tile.y, i, j, k; + for (i = 0; i < tile.features.length; i++) { + var feature = tile.features[i], geom = feature.geometry, type = feature.type; + feature.geometry = []; + if (type === 1) { + for (j = 0; j < geom.length; j += 2) { + feature.geometry.push(transformPoint(geom[j], geom[j + 1], extent, z2, tx, ty)); + } + } else { + for (j = 0; j < geom.length; j++) { + var ring = []; + for (k = 0; k < geom[j].length; k += 2) { + ring.push(transformPoint(geom[j][k], geom[j][k + 1], extent, z2, tx, ty)); + } + feature.geometry.push(ring); + } + } + } + tile.transformed = true; + return tile; +} +function transformPoint(x, y, extent, z2, tx, ty) { + return [ + Math.round(extent * (x * z2 - tx)), + Math.round(extent * (y * z2 - ty)) + ]; +} + +function createTile(features, z, tx, ty, options) { + var tolerance = z === options.maxZoom ? 0 : options.tolerance / ((1 << z) * options.extent); + var tile = { + features: [], + numPoints: 0, + numSimplified: 0, + numFeatures: 0, + source: null, + x: tx, + y: ty, + z: z, + transformed: false, + minX: 2, + minY: 1, + maxX: -1, + maxY: 0 + }; + for (var i = 0; i < features.length; i++) { + tile.numFeatures++; + addFeature(tile, features[i], tolerance, options); + var minX = features[i].minX; + var minY = features[i].minY; + var maxX = features[i].maxX; + var maxY = features[i].maxY; + if (minX < tile.minX) + tile.minX = minX; + if (minY < tile.minY) + tile.minY = minY; + if (maxX > tile.maxX) + tile.maxX = maxX; + if (maxY > tile.maxY) + tile.maxY = maxY; + } + return tile; +} +function addFeature(tile, feature, tolerance, options) { + var geom = feature.geometry, type = feature.type, simplified = []; + if (type === 'Point' || type === 'MultiPoint') { + for (var i = 0; i < geom.length; i += 3) { + simplified.push(geom[i]); + simplified.push(geom[i + 1]); + tile.numPoints++; + tile.numSimplified++; + } + } else if (type === 'LineString') { + addLine(simplified, geom, tile, tolerance, false, false); + } else if (type === 'MultiLineString' || type === 'Polygon') { + for (i = 0; i < geom.length; i++) { + addLine(simplified, geom[i], tile, tolerance, type === 'Polygon', i === 0); + } + } else if (type === 'MultiPolygon') { + for (var k = 0; k < geom.length; k++) { + var polygon = geom[k]; + for (i = 0; i < polygon.length; i++) { + addLine(simplified, polygon[i], tile, tolerance, true, i === 0); + } + } + } + if (simplified.length) { + var tags = feature.tags || null; + if (type === 'LineString' && options.lineMetrics) { + tags = {}; + for (var key in feature.tags) + tags[key] = feature.tags[key]; + tags['mapbox_clip_start'] = geom.start / geom.size; + tags['mapbox_clip_end'] = geom.end / geom.size; + } + var tileFeature = { + geometry: simplified, + type: type === 'Polygon' || type === 'MultiPolygon' ? 3 : type === 'LineString' || type === 'MultiLineString' ? 2 : 1, + tags: tags + }; + if (feature.id !== null) { + tileFeature.id = feature.id; + } + tile.features.push(tileFeature); + } +} +function addLine(result, geom, tile, tolerance, isPolygon, isOuter) { + var sqTolerance = tolerance * tolerance; + if (tolerance > 0 && geom.size < (isPolygon ? sqTolerance : tolerance)) { + tile.numPoints += geom.length / 3; + return; + } + var ring = []; + for (var i = 0; i < geom.length; i += 3) { + if (tolerance === 0 || geom[i + 2] > sqTolerance) { + tile.numSimplified++; + ring.push(geom[i]); + ring.push(geom[i + 1]); + } + tile.numPoints++; + } + if (isPolygon) + rewind$1(ring, isOuter); + result.push(ring); +} +function rewind$1(ring, clockwise) { + var area = 0; + for (var i = 0, len = ring.length, j = len - 2; i < len; j = i, i += 2) { + area += (ring[i] - ring[j]) * (ring[i + 1] + ring[j + 1]); + } + if (area > 0 === clockwise) { + for (i = 0, len = ring.length; i < len / 2; i += 2) { + var x = ring[i]; + var y = ring[i + 1]; + ring[i] = ring[len - 2 - i]; + ring[i + 1] = ring[len - 1 - i]; + ring[len - 2 - i] = x; + ring[len - 1 - i] = y; + } + } +} + +function geojsonvt(data, options) { + return new GeoJSONVT(data, options); +} +function GeoJSONVT(data, options) { + options = this.options = extend$1(Object.create(this.options), options); + var debug = options.debug; + if (debug) + console.time('preprocess data'); + if (options.maxZoom < 0 || options.maxZoom > 24) + throw new Error('maxZoom should be in the 0-24 range'); + if (options.promoteId && options.generateId) + throw new Error('promoteId and generateId cannot be used together.'); + var features = convert(data, options); + this.tiles = {}; + this.tileCoords = []; + if (debug) { + console.timeEnd('preprocess data'); + console.log('index: maxZoom: %d, maxPoints: %d', options.indexMaxZoom, options.indexMaxPoints); + console.time('generate tiles'); + this.stats = {}; + this.total = 0; + } + features = wrap(features, options); + if (features.length) + this.splitTile(features, 0, 0, 0); + if (debug) { + if (features.length) + console.log('features: %d, points: %d', this.tiles[0].numFeatures, this.tiles[0].numPoints); + console.timeEnd('generate tiles'); + console.log('tiles generated:', this.total, JSON.stringify(this.stats)); + } +} +GeoJSONVT.prototype.options = { + maxZoom: 14, + indexMaxZoom: 5, + indexMaxPoints: 100000, + tolerance: 3, + extent: 4096, + buffer: 64, + lineMetrics: false, + promoteId: null, + generateId: false, + debug: 0 +}; +GeoJSONVT.prototype.splitTile = function (features, z, x, y, cz, cx, cy) { + var stack = [ + features, + z, + x, + y + ], options = this.options, debug = options.debug; + while (stack.length) { + y = stack.pop(); + x = stack.pop(); + z = stack.pop(); + features = stack.pop(); + var z2 = 1 << z, id = toID(z, x, y), tile = this.tiles[id]; + if (!tile) { + if (debug > 1) + console.time('creation'); + tile = this.tiles[id] = createTile(features, z, x, y, options); + this.tileCoords.push({ + z: z, + x: x, + y: y + }); + if (debug) { + if (debug > 1) { + console.log('tile z%d-%d-%d (features: %d, points: %d, simplified: %d)', z, x, y, tile.numFeatures, tile.numPoints, tile.numSimplified); + console.timeEnd('creation'); + } + var key = 'z' + z; + this.stats[key] = (this.stats[key] || 0) + 1; + this.total++; + } + } + tile.source = features; + if (!cz) { + if (z === options.indexMaxZoom || tile.numPoints <= options.indexMaxPoints) + continue; + } else { + if (z === options.maxZoom || z === cz) + continue; + var m = 1 << cz - z; + if (x !== Math.floor(cx / m) || y !== Math.floor(cy / m)) + continue; + } + tile.source = null; + if (features.length === 0) + continue; + if (debug > 1) + console.time('clipping'); + var k1 = 0.5 * options.buffer / options.extent, k2 = 0.5 - k1, k3 = 0.5 + k1, k4 = 1 + k1, tl, bl, tr, br, left, right; + tl = bl = tr = br = null; + left = clip(features, z2, x - k1, x + k3, 0, tile.minX, tile.maxX, options); + right = clip(features, z2, x + k2, x + k4, 0, tile.minX, tile.maxX, options); + features = null; + if (left) { + tl = clip(left, z2, y - k1, y + k3, 1, tile.minY, tile.maxY, options); + bl = clip(left, z2, y + k2, y + k4, 1, tile.minY, tile.maxY, options); + left = null; + } + if (right) { + tr = clip(right, z2, y - k1, y + k3, 1, tile.minY, tile.maxY, options); + br = clip(right, z2, y + k2, y + k4, 1, tile.minY, tile.maxY, options); + right = null; + } + if (debug > 1) + console.timeEnd('clipping'); + stack.push(tl || [], z + 1, x * 2, y * 2); + stack.push(bl || [], z + 1, x * 2, y * 2 + 1); + stack.push(tr || [], z + 1, x * 2 + 1, y * 2); + stack.push(br || [], z + 1, x * 2 + 1, y * 2 + 1); + } +}; +GeoJSONVT.prototype.getTile = function (z, x, y) { + var options = this.options, extent = options.extent, debug = options.debug; + if (z < 0 || z > 24) + return null; + var z2 = 1 << z; + x = (x % z2 + z2) % z2; + var id = toID(z, x, y); + if (this.tiles[id]) + return transformTile(this.tiles[id], extent); + if (debug > 1) + console.log('drilling down to z%d-%d-%d', z, x, y); + var z0 = z, x0 = x, y0 = y, parent; + while (!parent && z0 > 0) { + z0--; + x0 = Math.floor(x0 / 2); + y0 = Math.floor(y0 / 2); + parent = this.tiles[toID(z0, x0, y0)]; + } + if (!parent || !parent.source) + return null; + if (debug > 1) + console.log('found parent tile z%d-%d-%d', z0, x0, y0); + if (debug > 1) + console.time('drilling down'); + this.splitTile(parent.source, z0, x0, y0, z, x, y); + if (debug > 1) + console.timeEnd('drilling down'); + return this.tiles[id] ? transformTile(this.tiles[id], extent) : null; +}; +function toID(z, x, y) { + return ((1 << z) * y + x) * 32 + z; +} +function extend$1(dest, src) { + for (var i in src) + dest[i] = src[i]; + return dest; +} + +function loadGeoJSONTile(params, callback) { + const canonical = params.tileID.canonical; + if (!this._geoJSONIndex) { + return callback(null, null); + } + const geoJSONTile = this._geoJSONIndex.getTile(canonical.z, canonical.x, canonical.y); + if (!geoJSONTile) { + return callback(null, null); + } + const geojsonWrapper = new GeoJSONWrapper(geoJSONTile.features); + let pbf = vtPbf(geojsonWrapper); + if (pbf.byteOffset !== 0 || pbf.byteLength !== pbf.buffer.byteLength) { + pbf = new Uint8Array(pbf); + } + callback(null, { + vectorTile: geojsonWrapper, + rawData: pbf.buffer + }); +} +class GeoJSONWorkerSource extends ref_properties.VectorTileWorkerSource { + constructor(actor, layerIndex, availableImages, isSpriteLoaded, loadGeoJSON) { + super(actor, layerIndex, availableImages, isSpriteLoaded, loadGeoJSONTile); + if (loadGeoJSON) { + this.loadGeoJSON = loadGeoJSON; + } + } + loadData(params, callback) { + if (this._pendingCallback) { + this._pendingCallback(null, { abandoned: true }); + } + this._pendingCallback = callback; + this._pendingLoadDataParams = params; + if (this._state && this._state !== 'Idle') { + this._state = 'NeedsLoadData'; + } else { + this._state = 'Coalescing'; + this._loadData(); + } + } + _loadData() { + if (!this._pendingCallback || !this._pendingLoadDataParams) { + return; + } + const callback = this._pendingCallback; + const params = this._pendingLoadDataParams; + delete this._pendingCallback; + delete this._pendingLoadDataParams; + const perf = params && params.request && params.request.collectResourceTiming ? new ref_properties.RequestPerformance(params.request) : false; + this.loadGeoJSON(params, (err, data) => { + if (err || !data) { + return callback(err); + } else if (typeof data !== 'object') { + return callback(new Error(`Input data given to '${ params.source }' is not a valid GeoJSON object.`)); + } else { + geojsonRewind(data, true); + try { + if (params.filter) { + const compiled = ref_properties.createExpression(params.filter, { + type: 'boolean', + 'property-type': 'data-driven', + overridable: false, + transition: false + }); + if (compiled.result === 'error') + throw new Error(compiled.value.map(err => `${ err.key }: ${ err.message }`).join(', ')); + const features = data.features.filter(feature => compiled.value.evaluate({ zoom: 0 }, feature)); + data = { + type: 'FeatureCollection', + features + }; + } + this._geoJSONIndex = params.cluster ? new Supercluster(getSuperclusterOptions(params)).load(data.features) : geojsonvt(data, params.geojsonVtOptions); + } catch (err) { + return callback(err); + } + this.loaded = {}; + const result = {}; + if (perf) { + const resourceTimingData = perf.finish(); + if (resourceTimingData) { + result.resourceTiming = {}; + result.resourceTiming[params.source] = JSON.parse(JSON.stringify(resourceTimingData)); + } + } + callback(null, result); + } + }); + } + coalesce() { + if (this._state === 'Coalescing') { + this._state = 'Idle'; + } else if (this._state === 'NeedsLoadData') { + this._state = 'Coalescing'; + this._loadData(); + } + } + reloadTile(params, callback) { + const loaded = this.loaded, uid = params.uid; + if (loaded && loaded[uid]) { + return super.reloadTile(params, callback); + } else { + return this.loadTile(params, callback); + } + } + loadGeoJSON(params, callback) { + if (params.request) { + ref_properties.getJSON(params.request, callback); + } else if (typeof params.data === 'string') { + try { + return callback(null, JSON.parse(params.data)); + } catch (e) { + return callback(new Error(`Input data given to '${ params.source }' is not a valid GeoJSON object.`)); + } + } else { + return callback(new Error(`Input data given to '${ params.source }' is not a valid GeoJSON object.`)); + } + } + removeSource(params, callback) { + if (this._pendingCallback) { + this._pendingCallback(null, { abandoned: true }); + } + callback(); + } + getClusterExpansionZoom(params, callback) { + try { + callback(null, this._geoJSONIndex.getClusterExpansionZoom(params.clusterId)); + } catch (e) { + callback(e); + } + } + getClusterChildren(params, callback) { + try { + callback(null, this._geoJSONIndex.getChildren(params.clusterId)); + } catch (e) { + callback(e); + } + } + getClusterLeaves(params, callback) { + try { + callback(null, this._geoJSONIndex.getLeaves(params.clusterId, params.limit, params.offset)); + } catch (e) { + callback(e); + } + } +} +function getSuperclusterOptions({superclusterOptions, clusterProperties}) { + if (!clusterProperties || !superclusterOptions) + return superclusterOptions; + const mapExpressions = {}; + const reduceExpressions = {}; + const globals = { + accumulated: null, + zoom: 0 + }; + const feature = { properties: null }; + const propertyNames = Object.keys(clusterProperties); + for (const key of propertyNames) { + const [operator, mapExpression] = clusterProperties[key]; + const mapExpressionParsed = ref_properties.createExpression(mapExpression); + const reduceExpressionParsed = ref_properties.createExpression(typeof operator === 'string' ? [ + operator, + ['accumulated'], + [ + 'get', + key + ] + ] : operator); + mapExpressions[key] = mapExpressionParsed.value; + reduceExpressions[key] = reduceExpressionParsed.value; + } + superclusterOptions.map = pointProperties => { + feature.properties = pointProperties; + const properties = {}; + for (const key of propertyNames) { + properties[key] = mapExpressions[key].evaluate(globals, feature); + } + return properties; + }; + superclusterOptions.reduce = (accumulated, clusterProperties) => { + feature.properties = clusterProperties; + for (const key of propertyNames) { + globals.accumulated = accumulated[key]; + accumulated[key] = reduceExpressions[key].evaluate(globals, feature); + } + }; + return superclusterOptions; +} + +class Worker { + constructor(self) { + this.self = self; + this.actor = new ref_properties.Actor(self, this); + this.layerIndexes = {}; + this.availableImages = {}; + this.isSpriteLoaded = false; + this.workerSourceTypes = { + vector: ref_properties.VectorTileWorkerSource, + geojson: GeoJSONWorkerSource + }; + this.workerSources = {}; + this.demWorkerSources = {}; + this.self.registerWorkerSource = (name, WorkerSource) => { + if (this.workerSourceTypes[name]) { + throw new Error(`Worker source with name "${ name }" already registered.`); + } + this.workerSourceTypes[name] = WorkerSource; + }; + this.self.registerRTLTextPlugin = rtlTextPlugin => { + if (ref_properties.plugin.isParsed()) { + throw new Error('RTL text plugin already registered.'); + } + ref_properties.plugin['applyArabicShaping'] = rtlTextPlugin.applyArabicShaping; + ref_properties.plugin['processBidirectionalText'] = rtlTextPlugin.processBidirectionalText; + ref_properties.plugin['processStyledBidirectionalText'] = rtlTextPlugin.processStyledBidirectionalText; + }; + } + checkIfReady(mapID, unused, callback) { + callback(); + } + setReferrer(mapID, referrer) { + this.referrer = referrer; + } + spriteLoaded(mapId, bool) { + this.isSpriteLoaded = bool; + for (const workerSource in this.workerSources[mapId]) { + const ws = this.workerSources[mapId][workerSource]; + for (const source in ws) { + if (ws[source] instanceof ref_properties.VectorTileWorkerSource) { + ws[source].isSpriteLoaded = bool; + ws[source].fire(new ref_properties.Event('isSpriteLoaded')); + } + } + } + } + setImages(mapId, images, callback) { + this.availableImages[mapId] = images; + for (const workerSource in this.workerSources[mapId]) { + const ws = this.workerSources[mapId][workerSource]; + for (const source in ws) { + ws[source].availableImages = images; + } + } + callback(); + } + enableTerrain(mapId, enable, callback) { + this.terrain = enable; + callback(); + } + setLayers(mapId, layers, callback) { + this.getLayerIndex(mapId).replace(layers); + callback(); + } + updateLayers(mapId, params, callback) { + this.getLayerIndex(mapId).update(params.layers, params.removedIds); + callback(); + } + loadTile(mapId, params, callback) { + const p = this.enableTerrain ? ref_properties.extend({ enableTerrain: this.terrain }, params) : params; + this.getWorkerSource(mapId, params.type, params.source).loadTile(p, callback); + } + loadDEMTile(mapId, params, callback) { + const p = this.enableTerrain ? ref_properties.extend({ buildQuadTree: this.terrain }, params) : params; + this.getDEMWorkerSource(mapId, params.source).loadTile(p, callback); + } + reloadTile(mapId, params, callback) { + const p = this.enableTerrain ? ref_properties.extend({ enableTerrain: this.terrain }, params) : params; + this.getWorkerSource(mapId, params.type, params.source).reloadTile(p, callback); + } + abortTile(mapId, params, callback) { + this.getWorkerSource(mapId, params.type, params.source).abortTile(params, callback); + } + removeTile(mapId, params, callback) { + this.getWorkerSource(mapId, params.type, params.source).removeTile(params, callback); + } + removeSource(mapId, params, callback) { + if (!this.workerSources[mapId] || !this.workerSources[mapId][params.type] || !this.workerSources[mapId][params.type][params.source]) { + return; + } + const worker = this.workerSources[mapId][params.type][params.source]; + delete this.workerSources[mapId][params.type][params.source]; + if (worker.removeSource !== undefined) { + worker.removeSource(params, callback); + } else { + callback(); + } + } + loadWorkerSource(map, params, callback) { + try { + this.self.importScripts(params.url); + callback(); + } catch (e) { + callback(e.toString()); + } + } + syncRTLPluginState(map, state, callback) { + try { + ref_properties.plugin.setState(state); + const pluginURL = ref_properties.plugin.getPluginURL(); + if (ref_properties.plugin.isLoaded() && !ref_properties.plugin.isParsed() && pluginURL != null) { + this.self.importScripts(pluginURL); + const complete = ref_properties.plugin.isParsed(); + const error = complete ? undefined : new Error(`RTL Text Plugin failed to import scripts from ${ pluginURL }`); + callback(error, complete); + } + } catch (e) { + callback(e.toString()); + } + } + getAvailableImages(mapId) { + let availableImages = this.availableImages[mapId]; + if (!availableImages) { + availableImages = []; + } + return availableImages; + } + getLayerIndex(mapId) { + let layerIndexes = this.layerIndexes[mapId]; + if (!layerIndexes) { + layerIndexes = this.layerIndexes[mapId] = new StyleLayerIndex(); + } + return layerIndexes; + } + getWorkerSource(mapId, type, source) { + if (!this.workerSources[mapId]) + this.workerSources[mapId] = {}; + if (!this.workerSources[mapId][type]) + this.workerSources[mapId][type] = {}; + if (!this.workerSources[mapId][type][source]) { + const actor = { + send: (type, data, callback, mustQueue, _, metadata) => { + this.actor.send(type, data, callback, mapId, mustQueue, metadata); + }, + scheduler: this.actor.scheduler + }; + this.workerSources[mapId][type][source] = new this.workerSourceTypes[type](actor, this.getLayerIndex(mapId), this.getAvailableImages(mapId), this.isSpriteLoaded); + } + return this.workerSources[mapId][type][source]; + } + getDEMWorkerSource(mapId, source) { + if (!this.demWorkerSources[mapId]) + this.demWorkerSources[mapId] = {}; + if (!this.demWorkerSources[mapId][source]) { + this.demWorkerSources[mapId][source] = new RasterDEMTileWorkerSource(); + } + return this.demWorkerSources[mapId][source]; + } + enforceCacheSizeLimit(mapId, limit) { + ref_properties.enforceCacheSizeLimit(limit); + } + getWorkerPerformanceMetrics(mapId, params, callback) { + callback(undefined, void 0); + } +} +if (typeof WorkerGlobalScope !== 'undefined' && typeof self !== 'undefined' && self instanceof WorkerGlobalScope) { + self.worker = new Worker(self); +} + +return Worker; + +}); + +define(['./shared'], function (ref_properties) { 'use strict'; + +var supported = isSupported; +function isSupported(options) { + return !notSupportedReason(options); +} +function notSupportedReason(options) { + if (!isBrowser()) + return 'not a browser'; + if (!isArraySupported()) + return 'insufficent Array support'; + if (!isFunctionSupported()) + return 'insufficient Function support'; + if (!isObjectSupported()) + return 'insufficient Object support'; + if (!isJSONSupported()) + return 'insufficient JSON support'; + if (!isWorkerSupported()) + return 'insufficient worker support'; + if (!isUint8ClampedArraySupported()) + return 'insufficient Uint8ClampedArray support'; + if (!isArrayBufferSupported()) + return 'insufficient ArrayBuffer support'; + if (!isCanvasGetImageDataSupported()) + return 'insufficient Canvas/getImageData support'; + if (!isWebGLSupportedCached(options && options.failIfMajorPerformanceCaveat)) + return 'insufficient WebGL support'; + if (!isNotIE()) + return 'insufficient ECMAScript 6 support'; +} +function isBrowser() { + return typeof window !== 'undefined' && typeof document !== 'undefined'; +} +function isArraySupported() { + return Array.prototype && Array.prototype.every && Array.prototype.filter && Array.prototype.forEach && Array.prototype.indexOf && Array.prototype.lastIndexOf && Array.prototype.map && Array.prototype.some && Array.prototype.reduce && Array.prototype.reduceRight && Array.isArray; +} +function isFunctionSupported() { + return Function.prototype && Function.prototype.bind; +} +function isObjectSupported() { + return Object.keys && Object.create && Object.getPrototypeOf && Object.getOwnPropertyNames && Object.isSealed && Object.isFrozen && Object.isExtensible && Object.getOwnPropertyDescriptor && Object.defineProperty && Object.defineProperties && Object.seal && Object.freeze && Object.preventExtensions; +} +function isJSONSupported() { + return 'JSON' in window && 'parse' in JSON && 'stringify' in JSON; +} +function isWorkerSupported() { + if (!('Worker' in window && 'Blob' in window && 'URL' in window)) { + return false; + } + var blob = new Blob([''], { type: 'text/javascript' }); + var workerURL = URL.createObjectURL(blob); + var supported; + var worker; + try { + worker = new Worker(workerURL); + supported = true; + } catch (e) { + supported = false; + } + if (worker) { + worker.terminate(); + } + URL.revokeObjectURL(workerURL); + return supported; +} +function isUint8ClampedArraySupported() { + return 'Uint8ClampedArray' in window; +} +function isArrayBufferSupported() { + return ArrayBuffer.isView; +} +function isCanvasGetImageDataSupported() { + var canvas = document.createElement('canvas'); + canvas.width = canvas.height = 1; + var context = canvas.getContext('2d'); + if (!context) { + return false; + } + var imageData = context.getImageData(0, 0, 1, 1); + return imageData && imageData.width === canvas.width; +} +var isWebGLSupportedCache = {}; +function isWebGLSupportedCached(failIfMajorPerformanceCaveat) { + if (isWebGLSupportedCache[failIfMajorPerformanceCaveat] === undefined) { + isWebGLSupportedCache[failIfMajorPerformanceCaveat] = isWebGLSupported(failIfMajorPerformanceCaveat); + } + return isWebGLSupportedCache[failIfMajorPerformanceCaveat]; +} +isSupported.webGLContextAttributes = { + antialias: false, + alpha: true, + stencil: true, + depth: true +}; +function getWebGLContext(failIfMajorPerformanceCaveat) { + var canvas = document.createElement('canvas'); + var attributes = Object.create(isSupported.webGLContextAttributes); + attributes.failIfMajorPerformanceCaveat = failIfMajorPerformanceCaveat; + return canvas.getContext('webgl', attributes) || canvas.getContext('experimental-webgl', attributes); +} +function isWebGLSupported(failIfMajorPerformanceCaveat) { + var gl = getWebGLContext(failIfMajorPerformanceCaveat); + if (!gl) { + return false; + } + var shader; + try { + shader = gl.createShader(gl.VERTEX_SHADER); + } catch (e) { + return false; + } + if (!shader || gl.isContextLost()) { + return false; + } + gl.shaderSource(shader, 'void main() {}'); + gl.compileShader(shader); + return gl.getShaderParameter(shader, gl.COMPILE_STATUS) === true; +} +function isNotIE() { + return !document.documentMode; +} + +const DOM = {}; +DOM.create = function (tagName, className, container) { + const el = ref_properties.window.document.createElement(tagName); + if (className !== undefined) + el.className = className; + if (container) + container.appendChild(el); + return el; +}; +DOM.createNS = function (namespaceURI, tagName) { + const el = ref_properties.window.document.createElementNS(namespaceURI, tagName); + return el; +}; +const docStyle = ref_properties.window.document && ref_properties.window.document.documentElement.style; +const selectProp = docStyle && docStyle.userSelect !== undefined ? 'userSelect' : 'WebkitUserSelect'; +let userSelect; +DOM.disableDrag = function () { + if (docStyle && selectProp) { + userSelect = docStyle[selectProp]; + docStyle[selectProp] = 'none'; + } +}; +DOM.enableDrag = function () { + if (docStyle && selectProp) { + docStyle[selectProp] = userSelect; + } +}; +DOM.setTransform = function (el, value) { + el.style.transform = value; +}; +let passiveSupported = false; +try { + const options = Object.defineProperty({}, 'passive', { + get() { + passiveSupported = true; + } + }); + ref_properties.window.addEventListener('test', options, options); + ref_properties.window.removeEventListener('test', options, options); +} catch (err) { + passiveSupported = false; +} +DOM.addEventListener = function (target, type, callback, options = {}) { + if ('passive' in options && passiveSupported) { + target.addEventListener(type, callback, options); + } else { + target.addEventListener(type, callback, options.capture); + } +}; +DOM.removeEventListener = function (target, type, callback, options = {}) { + if ('passive' in options && passiveSupported) { + target.removeEventListener(type, callback, options); + } else { + target.removeEventListener(type, callback, options.capture); + } +}; +const suppressClick = function (e) { + e.preventDefault(); + e.stopPropagation(); + ref_properties.window.removeEventListener('click', suppressClick, true); +}; +DOM.suppressClick = function () { + ref_properties.window.addEventListener('click', suppressClick, true); + ref_properties.window.setTimeout(() => { + ref_properties.window.removeEventListener('click', suppressClick, true); + }, 0); +}; +DOM.mousePos = function (el, e) { + const rect = el.getBoundingClientRect(); + return new ref_properties.Point(e.clientX - rect.left - el.clientLeft, e.clientY - rect.top - el.clientTop); +}; +DOM.touchPos = function (el, touches) { + const rect = el.getBoundingClientRect(), points = []; + for (let i = 0; i < touches.length; i++) { + points.push(new ref_properties.Point(touches[i].clientX - rect.left - el.clientLeft, touches[i].clientY - rect.top - el.clientTop)); + } + return points; +}; +DOM.mouseButton = function (e) { + if (typeof ref_properties.window.InstallTrigger !== 'undefined' && e.button === 2 && e.ctrlKey && ref_properties.window.navigator.platform.toUpperCase().indexOf('MAC') >= 0) { + return 0; + } + return e.button; +}; +DOM.remove = function (node) { + if (node.parentNode) { + node.parentNode.removeChild(node); + } +}; + +function loadSprite (baseURL, requestManager, callback) { + let json, image, error; + const format = ref_properties.browser.devicePixelRatio > 1 ? '@2x' : ''; + let jsonRequest = ref_properties.getJSON(requestManager.transformRequest(requestManager.normalizeSpriteURL(baseURL, format, '.json'), ref_properties.ResourceType.SpriteJSON), (err, data) => { + jsonRequest = null; + if (!error) { + error = err; + json = data; + maybeComplete(); + } + }); + let imageRequest = ref_properties.getImage(requestManager.transformRequest(requestManager.normalizeSpriteURL(baseURL, format, '.png'), ref_properties.ResourceType.SpriteImage), (err, img) => { + imageRequest = null; + if (!error) { + error = err; + image = img; + maybeComplete(); + } + }); + function maybeComplete() { + if (error) { + callback(error); + } else if (json && image) { + const imageData = ref_properties.browser.getImageData(image); + const result = {}; + for (const id in json) { + const {width, height, x, y, sdf, pixelRatio, stretchX, stretchY, content} = json[id]; + const data = new ref_properties.RGBAImage({ + width, + height + }); + ref_properties.RGBAImage.copy(imageData, data, { + x, + y + }, { + x: 0, + y: 0 + }, { + width, + height + }); + result[id] = { + data, + pixelRatio, + sdf, + stretchX, + stretchY, + content + }; + } + callback(null, result); + } + } + return { + cancel() { + if (jsonRequest) { + jsonRequest.cancel(); + jsonRequest = null; + } + if (imageRequest) { + imageRequest.cancel(); + imageRequest = null; + } + } + }; +} + +function renderStyleImage(image) { + const {userImage} = image; + if (userImage && userImage.render) { + const updated = userImage.render(); + if (updated) { + image.data.replace(new Uint8Array(userImage.data.buffer)); + return true; + } + } + return false; +} + +const padding = 1; +class ImageManager extends ref_properties.Evented { + constructor() { + super(); + this.images = {}; + this.updatedImages = {}; + this.callbackDispatchedThisFrame = {}; + this.loaded = false; + this.requestors = []; + this.patterns = {}; + this.atlasImage = new ref_properties.RGBAImage({ + width: 1, + height: 1 + }); + this.dirty = true; + } + isLoaded() { + return this.loaded; + } + setLoaded(loaded) { + if (this.loaded === loaded) { + return; + } + this.loaded = loaded; + if (loaded) { + for (const {ids, callback} of this.requestors) { + this._notify(ids, callback); + } + this.requestors = []; + } + } + getImage(id) { + return this.images[id]; + } + addImage(id, image) { + if (this._validate(id, image)) { + this.images[id] = image; + } + } + _validate(id, image) { + let valid = true; + if (!this._validateStretch(image.stretchX, image.data && image.data.width)) { + this.fire(new ref_properties.ErrorEvent(new Error(`Image "${ id }" has invalid "stretchX" value`))); + valid = false; + } + if (!this._validateStretch(image.stretchY, image.data && image.data.height)) { + this.fire(new ref_properties.ErrorEvent(new Error(`Image "${ id }" has invalid "stretchY" value`))); + valid = false; + } + if (!this._validateContent(image.content, image)) { + this.fire(new ref_properties.ErrorEvent(new Error(`Image "${ id }" has invalid "content" value`))); + valid = false; + } + return valid; + } + _validateStretch(stretch, size) { + if (!stretch) + return true; + let last = 0; + for (const part of stretch) { + if (part[0] < last || part[1] < part[0] || size < part[1]) + return false; + last = part[1]; + } + return true; + } + _validateContent(content, image) { + if (!content) + return true; + if (content.length !== 4) + return false; + if (content[0] < 0 || image.data.width < content[0]) + return false; + if (content[1] < 0 || image.data.height < content[1]) + return false; + if (content[2] < 0 || image.data.width < content[2]) + return false; + if (content[3] < 0 || image.data.height < content[3]) + return false; + if (content[2] < content[0]) + return false; + if (content[3] < content[1]) + return false; + return true; + } + updateImage(id, image) { + const oldImage = this.images[id]; + image.version = oldImage.version + 1; + this.images[id] = image; + this.updatedImages[id] = true; + } + removeImage(id) { + const image = this.images[id]; + delete this.images[id]; + delete this.patterns[id]; + if (image.userImage && image.userImage.onRemove) { + image.userImage.onRemove(); + } + } + listImages() { + return Object.keys(this.images); + } + getImages(ids, callback) { + let hasAllDependencies = true; + if (!this.isLoaded()) { + for (const id of ids) { + if (!this.images[id]) { + hasAllDependencies = false; + } + } + } + if (this.isLoaded() || hasAllDependencies) { + this._notify(ids, callback); + } else { + this.requestors.push({ + ids, + callback + }); + } + } + _notify(ids, callback) { + const response = {}; + for (const id of ids) { + if (!this.images[id]) { + this.fire(new ref_properties.Event('styleimagemissing', { id })); + } + const image = this.images[id]; + if (image) { + response[id] = { + data: image.data.clone(), + pixelRatio: image.pixelRatio, + sdf: image.sdf, + version: image.version, + stretchX: image.stretchX, + stretchY: image.stretchY, + content: image.content, + hasRenderCallback: Boolean(image.userImage && image.userImage.render) + }; + } else { + ref_properties.warnOnce(`Image "${ id }" could not be loaded. Please make sure you have added the image with map.addImage() or a "sprite" property in your style. You can provide missing images by listening for the "styleimagemissing" map event.`); + } + } + callback(null, response); + } + getPixelSize() { + const {width, height} = this.atlasImage; + return { + width, + height + }; + } + getPattern(id) { + const pattern = this.patterns[id]; + const image = this.getImage(id); + if (!image) { + return null; + } + if (pattern && pattern.position.version === image.version) { + return pattern.position; + } + if (!pattern) { + const w = image.data.width + padding * 2; + const h = image.data.height + padding * 2; + const bin = { + w, + h, + x: 0, + y: 0 + }; + const position = new ref_properties.ImagePosition(bin, image); + this.patterns[id] = { + bin, + position + }; + } else { + pattern.position.version = image.version; + } + this._updatePatternAtlas(); + return this.patterns[id].position; + } + bind(context) { + const gl = context.gl; + if (!this.atlasTexture) { + this.atlasTexture = new ref_properties.Texture(context, this.atlasImage, gl.RGBA); + } else if (this.dirty) { + this.atlasTexture.update(this.atlasImage); + this.dirty = false; + } + this.atlasTexture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + } + _updatePatternAtlas() { + const bins = []; + for (const id in this.patterns) { + bins.push(this.patterns[id].bin); + } + const {w, h} = ref_properties.potpack(bins); + const dst = this.atlasImage; + dst.resize({ + width: w || 1, + height: h || 1 + }); + for (const id in this.patterns) { + const {bin} = this.patterns[id]; + const x = bin.x + padding; + const y = bin.y + padding; + const src = this.images[id].data; + const w = src.width; + const h = src.height; + ref_properties.RGBAImage.copy(src, dst, { + x: 0, + y: 0 + }, { + x, + y + }, { + width: w, + height: h + }); + ref_properties.RGBAImage.copy(src, dst, { + x: 0, + y: h - 1 + }, { + x, + y: y - 1 + }, { + width: w, + height: 1 + }); + ref_properties.RGBAImage.copy(src, dst, { + x: 0, + y: 0 + }, { + x, + y: y + h + }, { + width: w, + height: 1 + }); + ref_properties.RGBAImage.copy(src, dst, { + x: w - 1, + y: 0 + }, { + x: x - 1, + y + }, { + width: 1, + height: h + }); + ref_properties.RGBAImage.copy(src, dst, { + x: 0, + y: 0 + }, { + x: x + w, + y + }, { + width: 1, + height: h + }); + } + this.dirty = true; + } + beginFrame() { + this.callbackDispatchedThisFrame = {}; + } + dispatchRenderCallbacks(ids) { + for (const id of ids) { + if (this.callbackDispatchedThisFrame[id]) + continue; + this.callbackDispatchedThisFrame[id] = true; + const image = this.images[id]; + const updated = renderStyleImage(image); + if (updated) { + this.updateImage(id, image); + } + } + } +} + +function sphericalToCartesian([r, azimuthal, polar]) { + const a = ref_properties.degToRad(azimuthal + 90), p = ref_properties.degToRad(polar); + return { + x: r * Math.cos(a) * Math.sin(p), + y: r * Math.sin(a) * Math.sin(p), + z: r * Math.cos(p), + azimuthal, + polar + }; +} +class LightPositionProperty { + constructor() { + this.specification = ref_properties.styleSpec.light.position; + } + possiblyEvaluate(value, parameters) { + return sphericalToCartesian(value.expression.evaluate(parameters)); + } + interpolate(a, b, t) { + return { + x: ref_properties.number(a.x, b.x, t), + y: ref_properties.number(a.y, b.y, t), + z: ref_properties.number(a.z, b.z, t), + azimuthal: ref_properties.number(a.azimuthal, b.azimuthal, t), + polar: ref_properties.number(a.polar, b.polar, t) + }; + } +} +const properties = new ref_properties.Properties({ + 'anchor': new ref_properties.DataConstantProperty(ref_properties.styleSpec.light.anchor), + 'position': new LightPositionProperty(), + 'color': new ref_properties.DataConstantProperty(ref_properties.styleSpec.light.color), + 'intensity': new ref_properties.DataConstantProperty(ref_properties.styleSpec.light.intensity) +}); +const TRANSITION_SUFFIX = '-transition'; +class Light extends ref_properties.Evented { + constructor(lightOptions) { + super(); + this._transitionable = new ref_properties.Transitionable(properties); + this.setLight(lightOptions); + this._transitioning = this._transitionable.untransitioned(); + } + getLight() { + return this._transitionable.serialize(); + } + setLight(light, options = {}) { + if (this._validate(ref_properties.validateLight, light, options)) { + return; + } + for (const name in light) { + const value = light[name]; + if (ref_properties.endsWith(name, TRANSITION_SUFFIX)) { + this._transitionable.setTransition(name.slice(0, -TRANSITION_SUFFIX.length), value); + } else { + this._transitionable.setValue(name, value); + } + } + } + updateTransitions(parameters) { + this._transitioning = this._transitionable.transitioned(parameters, this._transitioning); + } + hasTransition() { + return this._transitioning.hasTransition(); + } + recalculate(parameters) { + this.properties = this._transitioning.possiblyEvaluate(parameters); + } + _validate(validate, value, options) { + if (options && options.validate === false) { + return false; + } + return ref_properties.emitValidationErrors(this, validate.call(ref_properties.validateStyle, ref_properties.extend({ + value, + style: { + glyphs: true, + sprite: true + }, + styleSpec: ref_properties.styleSpec + }))); + } +} + +const properties$1 = new ref_properties.Properties({ + 'source': new ref_properties.DataConstantProperty(ref_properties.styleSpec.terrain.source), + 'exaggeration': new ref_properties.DataConstantProperty(ref_properties.styleSpec.terrain.exaggeration) +}); +const TRANSITION_SUFFIX$1 = '-transition'; +class Terrain extends ref_properties.Evented { + constructor(terrainOptions) { + super(); + this._transitionable = new ref_properties.Transitionable(properties$1); + this.set(terrainOptions); + this._transitioning = this._transitionable.untransitioned(); + } + get() { + return this._transitionable.serialize(); + } + set(terrain) { + for (const name in terrain) { + const value = terrain[name]; + if (ref_properties.endsWith(name, TRANSITION_SUFFIX$1)) { + this._transitionable.setTransition(name.slice(0, -TRANSITION_SUFFIX$1.length), value); + } else { + this._transitionable.setValue(name, value); + } + } + } + updateTransitions(parameters) { + this._transitioning = this._transitionable.transitioned(parameters, this._transitioning); + } + hasTransition() { + return this._transitioning.hasTransition(); + } + recalculate(parameters) { + this.properties = this._transitioning.possiblyEvaluate(parameters); + } +} + +class LineAtlas { + constructor(width, height) { + this.width = width; + this.height = height; + this.nextRow = 0; + this.data = new Uint8Array(this.width * this.height); + this.dashEntry = {}; + } + getDash(dasharray, round) { + const key = dasharray.join(',') + String(round); + if (!this.dashEntry[key]) { + this.dashEntry[key] = this.addDash(dasharray, round); + } + return this.dashEntry[key]; + } + getDashRanges(dasharray, lineAtlasWidth, stretch) { + const oddDashArray = dasharray.length % 2 === 1; + const ranges = []; + let left = oddDashArray ? -dasharray[dasharray.length - 1] * stretch : 0; + let right = dasharray[0] * stretch; + let isDash = true; + ranges.push({ + left, + right, + isDash, + zeroLength: dasharray[0] === 0 + }); + let currentDashLength = dasharray[0]; + for (let i = 1; i < dasharray.length; i++) { + isDash = !isDash; + const dashLength = dasharray[i]; + left = currentDashLength * stretch; + currentDashLength += dashLength; + right = currentDashLength * stretch; + ranges.push({ + left, + right, + isDash, + zeroLength: dashLength === 0 + }); + } + return ranges; + } + addRoundDash(ranges, stretch, n) { + const halfStretch = stretch / 2; + for (let y = -n; y <= n; y++) { + const row = this.nextRow + n + y; + const index = this.width * row; + let currIndex = 0; + let range = ranges[currIndex]; + for (let x = 0; x < this.width; x++) { + if (x / range.right > 1) { + range = ranges[++currIndex]; + } + const distLeft = Math.abs(x - range.left); + const distRight = Math.abs(x - range.right); + const minDist = Math.min(distLeft, distRight); + let signedDistance; + const distMiddle = y / n * (halfStretch + 1); + if (range.isDash) { + const distEdge = halfStretch - Math.abs(distMiddle); + signedDistance = Math.sqrt(minDist * minDist + distEdge * distEdge); + } else { + signedDistance = halfStretch - Math.sqrt(minDist * minDist + distMiddle * distMiddle); + } + this.data[index + x] = Math.max(0, Math.min(255, signedDistance + 128)); + } + } + } + addRegularDash(ranges) { + for (let i = ranges.length - 1; i >= 0; --i) { + const part = ranges[i]; + const next = ranges[i + 1]; + if (part.zeroLength) { + ranges.splice(i, 1); + } else if (next && next.isDash === part.isDash) { + next.left = part.left; + ranges.splice(i, 1); + } + } + const first = ranges[0]; + const last = ranges[ranges.length - 1]; + if (first.isDash === last.isDash) { + first.left = last.left - this.width; + last.right = first.right + this.width; + } + const index = this.width * this.nextRow; + let currIndex = 0; + let range = ranges[currIndex]; + for (let x = 0; x < this.width; x++) { + if (x / range.right > 1) { + range = ranges[++currIndex]; + } + const distLeft = Math.abs(x - range.left); + const distRight = Math.abs(x - range.right); + const minDist = Math.min(distLeft, distRight); + const signedDistance = range.isDash ? minDist : -minDist; + this.data[index + x] = Math.max(0, Math.min(255, signedDistance + 128)); + } + } + addDash(dasharray, round) { + const n = round ? 7 : 0; + const height = 2 * n + 1; + if (this.nextRow + height > this.height) { + ref_properties.warnOnce('LineAtlas out of space'); + return null; + } + if (dasharray.length === 0) { + dasharray.push(1); + } + let length = 0; + for (let i = 0; i < dasharray.length; i++) { + if (dasharray[i] < 0) { + ref_properties.warnOnce('Negative value is found in line dasharray, replacing values with 0'); + dasharray[i] = 0; + } + length += dasharray[i]; + } + if (length !== 0) { + const stretch = this.width / length; + const ranges = this.getDashRanges(dasharray, this.width, stretch); + if (round) { + this.addRoundDash(ranges, stretch, n); + } else { + this.addRegularDash(ranges); + } + } + const dashEntry = { + y: (this.nextRow + n + 0.5) / this.height, + height: 2 * n / this.height, + width: length + }; + this.nextRow += height; + this.dirty = true; + return dashEntry; + } + bind(context) { + const gl = context.gl; + if (!this.texture) { + this.texture = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, this.texture); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); + gl.texImage2D(gl.TEXTURE_2D, 0, gl.ALPHA, this.width, this.height, 0, gl.ALPHA, gl.UNSIGNED_BYTE, this.data); + } else { + gl.bindTexture(gl.TEXTURE_2D, this.texture); + if (this.dirty) { + this.dirty = false; + gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, this.width, this.height, gl.ALPHA, gl.UNSIGNED_BYTE, this.data); + } + } + } +} + +class Dispatcher { + constructor(workerPool, parent) { + this.workerPool = workerPool; + this.actors = []; + this.currentActor = 0; + this.id = ref_properties.uniqueId(); + const workers = this.workerPool.acquire(this.id); + for (let i = 0; i < workers.length; i++) { + const worker = workers[i]; + const actor = new Dispatcher.Actor(worker, parent, this.id); + actor.name = `Worker ${ i }`; + this.actors.push(actor); + } + this.ready = false; + this.broadcast('checkIfReady', null, () => { + this.ready = true; + }); + } + broadcast(type, data, cb) { + cb = cb || function () { + }; + ref_properties.asyncAll(this.actors, (actor, done) => { + actor.send(type, data, done); + }, cb); + } + getActor() { + this.currentActor = (this.currentActor + 1) % this.actors.length; + return this.actors[this.currentActor]; + } + remove() { + this.actors.forEach(actor => { + actor.remove(); + }); + this.actors = []; + this.workerPool.release(this.id); + } +} +Dispatcher.Actor = ref_properties.Actor; + +function pixelsToTileUnits (tile, pixelValue, z) { + return pixelValue * (ref_properties.EXTENT / (tile.tileSize * Math.pow(2, z - tile.tileID.overscaledZ))); +} + +class QueryGeometry { + constructor(screenBounds, cameraPoint, aboveHorizon, transform) { + this.screenBounds = screenBounds; + this.cameraPoint = cameraPoint; + this._screenRaycastCache = {}; + this._cameraRaycastCache = {}; + this.isAboveHorizon = aboveHorizon; + this.screenGeometry = this.bufferedScreenGeometry(0); + this.screenGeometryMercator = this.screenGeometry.map(p => transform.pointCoordinate3D(p)); + this.cameraGeometry = this.bufferedCameraGeometry(0); + } + static createFromScreenPoints(geometry, transform) { + let screenGeometry; + let aboveHorizon; + if (geometry instanceof ref_properties.Point || typeof geometry[0] === 'number') { + const pt = ref_properties.Point.convert(geometry); + screenGeometry = [ref_properties.Point.convert(geometry)]; + aboveHorizon = transform.isPointAboveHorizon(pt); + } else { + const tl = ref_properties.Point.convert(geometry[0]); + const br = ref_properties.Point.convert(geometry[1]); + screenGeometry = [ + tl, + br + ]; + aboveHorizon = ref_properties.polygonizeBounds(tl, br).every(p => transform.isPointAboveHorizon(p)); + } + return new QueryGeometry(screenGeometry, transform.getCameraPoint(), aboveHorizon, transform); + } + isPointQuery() { + return this.screenBounds.length === 1; + } + bufferedScreenGeometry(buffer) { + return ref_properties.polygonizeBounds(this.screenBounds[0], this.screenBounds.length === 1 ? this.screenBounds[0] : this.screenBounds[1], buffer); + } + bufferedCameraGeometry(buffer) { + const min = this.screenBounds[0]; + const max = this.screenBounds.length === 1 ? this.screenBounds[0].add(new ref_properties.Point(1, 1)) : this.screenBounds[1]; + const cameraPolygon = ref_properties.polygonizeBounds(min, max, 0, false); + if (this.cameraPoint.y > max.y) { + if (this.cameraPoint.x > min.x && this.cameraPoint.x < max.x) { + cameraPolygon.splice(3, 0, this.cameraPoint); + } else if (this.cameraPoint.x >= max.x) { + cameraPolygon[2] = this.cameraPoint; + } else if (this.cameraPoint.x <= min.x) { + cameraPolygon[3] = this.cameraPoint; + } + } + return ref_properties.bufferConvexPolygon(cameraPolygon, buffer); + } + containsTile(tile, transform, use3D) { + const bias = 1; + const padding = tile.queryPadding + bias; + const geometryForTileCheck = use3D ? this._bufferedCameraMercator(padding, transform).map(p => tile.tileID.getTilePoint(p)) : this._bufferedScreenMercator(padding, transform).map(p => tile.tileID.getTilePoint(p)); + const tilespaceVec3s = this.screenGeometryMercator.map(p => tile.tileID.getTileVec3(p)); + const tilespaceGeometry = tilespaceVec3s.map(v => new ref_properties.Point(v[0], v[1])); + const cameraMercator = transform.getFreeCameraOptions().position || new ref_properties.MercatorCoordinate(0, 0, 0); + const tilespaceCameraPosition = tile.tileID.getTileVec3(cameraMercator); + const tilespaceRays = tilespaceVec3s.map(tileVec => { + const dir = ref_properties.sub(tileVec, tileVec, tilespaceCameraPosition); + ref_properties.normalize(dir, dir); + return new ref_properties.Ray(tilespaceCameraPosition, dir); + }); + const pixelToTileUnitsFactor = pixelsToTileUnits(tile, 1, transform.zoom); + if (ref_properties.polygonIntersectsBox(geometryForTileCheck, 0, 0, ref_properties.EXTENT, ref_properties.EXTENT)) { + return { + queryGeometry: this, + tilespaceGeometry, + tilespaceRays, + bufferedTilespaceGeometry: geometryForTileCheck, + bufferedTilespaceBounds: clampBoundsToTileExtents(ref_properties.getBounds(geometryForTileCheck)), + tile, + tileID: tile.tileID, + pixelToTileUnitsFactor + }; + } + } + _bufferedScreenMercator(padding, transform) { + const key = cacheKey(padding); + if (this._screenRaycastCache[key]) { + return this._screenRaycastCache[key]; + } else { + const poly = this.bufferedScreenGeometry(padding).map(p => transform.pointCoordinate3D(p)); + this._screenRaycastCache[key] = poly; + return poly; + } + } + _bufferedCameraMercator(padding, transform) { + const key = cacheKey(padding); + if (this._cameraRaycastCache[key]) { + return this._cameraRaycastCache[key]; + } else { + const poly = this.bufferedCameraGeometry(padding).map(p => transform.pointCoordinate3D(p)); + this._cameraRaycastCache[key] = poly; + return poly; + } + } +} +function cacheKey(padding) { + return padding * 100 | 0; +} +function clampBoundsToTileExtents(bounds) { + bounds.min.x = ref_properties.clamp(bounds.min.x, 0, ref_properties.EXTENT); + bounds.min.y = ref_properties.clamp(bounds.min.y, 0, ref_properties.EXTENT); + bounds.max.x = ref_properties.clamp(bounds.max.x, 0, ref_properties.EXTENT); + bounds.max.y = ref_properties.clamp(bounds.max.y, 0, ref_properties.EXTENT); + return bounds; +} + +function loadTileJSON (options, requestManager, callback) { + const loaded = function (err, tileJSON) { + if (err) { + return callback(err); + } else if (tileJSON) { + const result = ref_properties.pick(ref_properties.extend(tileJSON, options), [ + 'tiles', + 'minzoom', + 'maxzoom', + 'attribution', + 'mapbox_logo', + 'bounds', + 'scheme', + 'tileSize', + 'encoding' + ]); + if (tileJSON.vector_layers) { + result.vectorLayers = tileJSON.vector_layers; + result.vectorLayerIds = result.vectorLayers.map(layer => { + return layer.id; + }); + } + result.tiles = requestManager.canonicalizeTileset(result, options.url); + callback(null, result); + } + }; + if (options.url) { + return ref_properties.getJSON(requestManager.transformRequest(requestManager.normalizeSourceURL(options.url), ref_properties.ResourceType.Source), loaded); + } else { + return ref_properties.browser.frame(() => loaded(null, options)); + } +} + +class TileBounds { + constructor(bounds, minzoom, maxzoom) { + this.bounds = ref_properties.LngLatBounds.convert(this.validateBounds(bounds)); + this.minzoom = minzoom || 0; + this.maxzoom = maxzoom || 24; + } + validateBounds(bounds) { + if (!Array.isArray(bounds) || bounds.length !== 4) + return [ + -180, + -90, + 180, + 90 + ]; + return [ + Math.max(-180, bounds[0]), + Math.max(-90, bounds[1]), + Math.min(180, bounds[2]), + Math.min(90, bounds[3]) + ]; + } + contains(tileID) { + const worldSize = Math.pow(2, tileID.z); + const level = { + minX: Math.floor(ref_properties.mercatorXfromLng(this.bounds.getWest()) * worldSize), + minY: Math.floor(ref_properties.mercatorYfromLat(this.bounds.getNorth()) * worldSize), + maxX: Math.ceil(ref_properties.mercatorXfromLng(this.bounds.getEast()) * worldSize), + maxY: Math.ceil(ref_properties.mercatorYfromLat(this.bounds.getSouth()) * worldSize) + }; + const hit = tileID.x >= level.minX && tileID.x < level.maxX && tileID.y >= level.minY && tileID.y < level.maxY; + return hit; + } +} + +class VectorTileSource extends ref_properties.Evented { + constructor(id, options, dispatcher, eventedParent) { + super(); + this.id = id; + this.dispatcher = dispatcher; + this.type = 'vector'; + this.minzoom = 0; + this.maxzoom = 22; + this.scheme = 'xyz'; + this.tileSize = 512; + this.reparseOverscaled = true; + this.isTileClipped = true; + this._loaded = false; + ref_properties.extend(this, ref_properties.pick(options, [ + 'url', + 'scheme', + 'tileSize', + 'promoteId' + ])); + this._options = ref_properties.extend({ type: 'vector' }, options); + this._collectResourceTiming = options.collectResourceTiming; + if (this.tileSize !== 512) { + throw new Error('vector tile sources must have a tileSize of 512'); + } + this.setEventedParent(eventedParent); + this._tileWorkers = {}; + this._deduped = new ref_properties.DedupedRequest(); + } + load() { + this._loaded = false; + this.fire(new ref_properties.Event('dataloading', { dataType: 'source' })); + this._tileJSONRequest = loadTileJSON(this._options, this.map._requestManager, (err, tileJSON) => { + this._tileJSONRequest = null; + this._loaded = true; + if (err) { + this.fire(new ref_properties.ErrorEvent(err)); + } else if (tileJSON) { + ref_properties.extend(this, tileJSON); + if (tileJSON.bounds) + this.tileBounds = new TileBounds(tileJSON.bounds, this.minzoom, this.maxzoom); + ref_properties.postTurnstileEvent(tileJSON.tiles, this.map._requestManager._customAccessToken); + this.fire(new ref_properties.Event('data', { + dataType: 'source', + sourceDataType: 'metadata' + })); + this.fire(new ref_properties.Event('data', { + dataType: 'source', + sourceDataType: 'content' + })); + } + }); + } + loaded() { + return this._loaded; + } + hasTile(tileID) { + return !this.tileBounds || this.tileBounds.contains(tileID.canonical); + } + onAdd(map) { + this.map = map; + this.load(); + } + setSourceProperty(callback) { + if (this._tileJSONRequest) { + this._tileJSONRequest.cancel(); + } + callback(); + const sourceCaches = this.map.style._getSourceCaches(this.id); + for (const sourceCache of sourceCaches) { + sourceCache.clearTiles(); + } + this.load(); + } + setTiles(tiles) { + this.setSourceProperty(() => { + this._options.tiles = tiles; + }); + return this; + } + setUrl(url) { + this.setSourceProperty(() => { + this.url = url; + this._options.url = url; + }); + return this; + } + onRemove() { + if (this._tileJSONRequest) { + this._tileJSONRequest.cancel(); + this._tileJSONRequest = null; + } + } + serialize() { + return ref_properties.extend({}, this._options); + } + loadTile(tile, callback) { + const url = this.map._requestManager.normalizeTileURL(tile.tileID.canonical.url(this.tiles, this.scheme)); + const request = this.map._requestManager.transformRequest(url, ref_properties.ResourceType.Tile); + const params = { + request, + data: undefined, + uid: tile.uid, + tileID: tile.tileID, + tileZoom: tile.tileZoom, + zoom: tile.tileID.overscaledZ, + tileSize: this.tileSize * tile.tileID.overscaleFactor(), + type: this.type, + source: this.id, + pixelRatio: ref_properties.browser.devicePixelRatio, + showCollisionBoxes: this.map.showCollisionBoxes, + promoteId: this.promoteId, + isSymbolTile: tile.isSymbolTile + }; + params.request.collectResourceTiming = this._collectResourceTiming; + if (!tile.actor || tile.state === 'expired') { + tile.actor = this._tileWorkers[url] = this._tileWorkers[url] || this.dispatcher.getActor(); + if (!this.dispatcher.ready) { + const cancel = ref_properties.loadVectorTile.call({ deduped: this._deduped }, params, (err, data) => { + if (err || !data) { + done.call(this, err); + } else { + params.data = { + cacheControl: data.cacheControl, + expires: data.expires, + rawData: data.rawData.slice(0) + }; + if (tile.actor) + tile.actor.send('loadTile', params, done.bind(this)); + } + }, true); + tile.request = { cancel }; + } else { + tile.request = tile.actor.send('loadTile', params, done.bind(this)); + } + } else if (tile.state === 'loading') { + tile.reloadCallback = callback; + } else { + tile.request = tile.actor.send('reloadTile', params, done.bind(this)); + } + function done(err, data) { + delete tile.request; + if (tile.aborted) + return callback(null); + if (err && err.status !== 404) { + return callback(err); + } + if (data && data.resourceTiming) + tile.resourceTiming = data.resourceTiming; + if (this.map._refreshExpiredTiles && data) + tile.setExpiryData(data); + tile.loadVectorData(data, this.map.painter); + ref_properties.cacheEntryPossiblyAdded(this.dispatcher); + callback(null); + if (tile.reloadCallback) { + this.loadTile(tile, tile.reloadCallback); + tile.reloadCallback = null; + } + } + } + abortTile(tile) { + if (tile.request) { + tile.request.cancel(); + delete tile.request; + } + if (tile.actor) { + tile.actor.send('abortTile', { + uid: tile.uid, + type: this.type, + source: this.id + }, undefined); + } + } + unloadTile(tile) { + tile.unloadVectorData(); + if (tile.actor) { + tile.actor.send('removeTile', { + uid: tile.uid, + type: this.type, + source: this.id + }, undefined); + } + } + hasTransition() { + return false; + } + afterUpdate() { + this._tileWorkers = {}; + } +} + +class RasterTileSource extends ref_properties.Evented { + constructor(id, options, dispatcher, eventedParent) { + super(); + this.id = id; + this.dispatcher = dispatcher; + this.setEventedParent(eventedParent); + this.type = 'raster'; + this.minzoom = 0; + this.maxzoom = 22; + this.roundZoom = true; + this.scheme = 'xyz'; + this.tileSize = 512; + this._loaded = false; + this._options = ref_properties.extend({ type: 'raster' }, options); + ref_properties.extend(this, ref_properties.pick(options, [ + 'url', + 'scheme', + 'tileSize' + ])); + } + load() { + this._loaded = false; + this.fire(new ref_properties.Event('dataloading', { dataType: 'source' })); + this._tileJSONRequest = loadTileJSON(this._options, this.map._requestManager, (err, tileJSON) => { + this._tileJSONRequest = null; + this._loaded = true; + if (err) { + this.fire(new ref_properties.ErrorEvent(err)); + } else if (tileJSON) { + ref_properties.extend(this, tileJSON); + if (tileJSON.bounds) + this.tileBounds = new TileBounds(tileJSON.bounds, this.minzoom, this.maxzoom); + ref_properties.postTurnstileEvent(tileJSON.tiles); + this.fire(new ref_properties.Event('data', { + dataType: 'source', + sourceDataType: 'metadata' + })); + this.fire(new ref_properties.Event('data', { + dataType: 'source', + sourceDataType: 'content' + })); + } + }); + } + loaded() { + return this._loaded; + } + onAdd(map) { + this.map = map; + this.load(); + } + onRemove() { + if (this._tileJSONRequest) { + this._tileJSONRequest.cancel(); + this._tileJSONRequest = null; + } + } + serialize() { + return ref_properties.extend({}, this._options); + } + hasTile(tileID) { + return !this.tileBounds || this.tileBounds.contains(tileID.canonical); + } + loadTile(tile, callback) { + const use2x = ref_properties.browser.devicePixelRatio >= 2; + const url = this.map._requestManager.normalizeTileURL(tile.tileID.canonical.url(this.tiles, this.scheme), use2x, this.tileSize); + tile.request = ref_properties.getImage(this.map._requestManager.transformRequest(url, ref_properties.ResourceType.Tile), (err, img) => { + delete tile.request; + if (tile.aborted) { + tile.state = 'unloaded'; + callback(null); + } else if (err) { + tile.state = 'errored'; + callback(err); + } else if (img) { + if (this.map._refreshExpiredTiles) + tile.setExpiryData(img); + delete img.cacheControl; + delete img.expires; + const context = this.map.painter.context; + const gl = context.gl; + tile.texture = this.map.painter.getTileTexture(img.width); + if (tile.texture) { + tile.texture.update(img, { useMipmap: true }); + } else { + tile.texture = new ref_properties.Texture(context, img, gl.RGBA, { useMipmap: true }); + tile.texture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE, gl.LINEAR_MIPMAP_NEAREST); + if (context.extTextureFilterAnisotropic) { + gl.texParameterf(gl.TEXTURE_2D, context.extTextureFilterAnisotropic.TEXTURE_MAX_ANISOTROPY_EXT, context.extTextureFilterAnisotropicMax); + } + } + tile.state = 'loaded'; + ref_properties.cacheEntryPossiblyAdded(this.dispatcher); + callback(null); + } + }); + } + abortTile(tile, callback) { + if (tile.request) { + tile.request.cancel(); + delete tile.request; + } + callback(); + } + unloadTile(tile, callback) { + if (tile.texture) + this.map.painter.saveTileTexture(tile.texture); + callback(); + } + hasTransition() { + return false; + } +} + +class RasterDEMTileSource extends RasterTileSource { + constructor(id, options, dispatcher, eventedParent) { + super(id, options, dispatcher, eventedParent); + this.type = 'raster-dem'; + this.maxzoom = 22; + this._options = ref_properties.extend({ type: 'raster-dem' }, options); + this.encoding = options.encoding || 'mapbox'; + } + serialize() { + return { + type: 'raster-dem', + url: this.url, + tileSize: this.tileSize, + tiles: this.tiles, + bounds: this.bounds, + encoding: this.encoding + }; + } + loadTile(tile, callback) { + const url = this.map._requestManager.normalizeTileURL(tile.tileID.canonical.url(this.tiles, this.scheme), false, this.tileSize); + tile.request = ref_properties.getImage(this.map._requestManager.transformRequest(url, ref_properties.ResourceType.Tile), imageLoaded.bind(this)); + function imageLoaded(err, img) { + delete tile.request; + if (tile.aborted) { + tile.state = 'unloaded'; + callback(null); + } else if (err) { + tile.state = 'errored'; + callback(err); + } else if (img) { + if (this.map._refreshExpiredTiles) + tile.setExpiryData(img); + delete img.cacheControl; + delete img.expires; + const transfer = ref_properties.window.ImageBitmap && img instanceof ref_properties.window.ImageBitmap && ref_properties.offscreenCanvasSupported(); + const buffer = (img.width - ref_properties.prevPowerOfTwo(img.width)) / 2; + const padding = 1 - buffer; + const borderReady = padding < 1; + if (!borderReady && !tile.neighboringTiles) { + tile.neighboringTiles = this._getNeighboringTiles(tile.tileID); + } + const rawImageData = transfer ? img : ref_properties.browser.getImageData(img, padding); + const params = { + uid: tile.uid, + coord: tile.tileID, + source: this.id, + rawImageData, + encoding: this.encoding, + padding + }; + if (!tile.actor || tile.state === 'expired') { + tile.actor = this.dispatcher.getActor(); + tile.actor.send('loadDEMTile', params, done.bind(this)); + } + } + } + function done(err, dem) { + if (err) { + tile.state = 'errored'; + callback(err); + } + if (dem) { + tile.dem = dem; + tile.dem.onDeserialize(); + tile.needsHillshadePrepare = true; + tile.needsDEMTextureUpload = true; + tile.state = 'loaded'; + callback(null); + } + } + } + _getNeighboringTiles(tileID) { + const canonical = tileID.canonical; + const dim = Math.pow(2, canonical.z); + const px = (canonical.x - 1 + dim) % dim; + const pxw = canonical.x === 0 ? tileID.wrap - 1 : tileID.wrap; + const nx = (canonical.x + 1 + dim) % dim; + const nxw = canonical.x + 1 === dim ? tileID.wrap + 1 : tileID.wrap; + const neighboringTiles = {}; + neighboringTiles[new ref_properties.OverscaledTileID(tileID.overscaledZ, pxw, canonical.z, px, canonical.y).key] = { backfilled: false }; + neighboringTiles[new ref_properties.OverscaledTileID(tileID.overscaledZ, nxw, canonical.z, nx, canonical.y).key] = { backfilled: false }; + if (canonical.y > 0) { + neighboringTiles[new ref_properties.OverscaledTileID(tileID.overscaledZ, pxw, canonical.z, px, canonical.y - 1).key] = { backfilled: false }; + neighboringTiles[new ref_properties.OverscaledTileID(tileID.overscaledZ, tileID.wrap, canonical.z, canonical.x, canonical.y - 1).key] = { backfilled: false }; + neighboringTiles[new ref_properties.OverscaledTileID(tileID.overscaledZ, nxw, canonical.z, nx, canonical.y - 1).key] = { backfilled: false }; + } + if (canonical.y + 1 < dim) { + neighboringTiles[new ref_properties.OverscaledTileID(tileID.overscaledZ, pxw, canonical.z, px, canonical.y + 1).key] = { backfilled: false }; + neighboringTiles[new ref_properties.OverscaledTileID(tileID.overscaledZ, tileID.wrap, canonical.z, canonical.x, canonical.y + 1).key] = { backfilled: false }; + neighboringTiles[new ref_properties.OverscaledTileID(tileID.overscaledZ, nxw, canonical.z, nx, canonical.y + 1).key] = { backfilled: false }; + } + return neighboringTiles; + } + unloadTile(tile) { + if (tile.demTexture) + this.map.painter.saveTileTexture(tile.demTexture); + if (tile.fbo) { + tile.fbo.destroy(); + delete tile.fbo; + } + if (tile.dem) + delete tile.dem; + delete tile.neighboringTiles; + tile.state = 'unloaded'; + } +} + +class GeoJSONSource extends ref_properties.Evented { + constructor(id, options, dispatcher, eventedParent) { + super(); + this.id = id; + this.type = 'geojson'; + this.minzoom = 0; + this.maxzoom = 18; + this.tileSize = 512; + this.isTileClipped = true; + this.reparseOverscaled = true; + this._removed = false; + this._loaded = false; + this.actor = dispatcher.getActor(); + this.setEventedParent(eventedParent); + this._data = options.data; + this._options = ref_properties.extend({}, options); + this._collectResourceTiming = options.collectResourceTiming; + this._resourceTiming = []; + if (options.maxzoom !== undefined) + this.maxzoom = options.maxzoom; + if (options.type) + this.type = options.type; + if (options.attribution) + this.attribution = options.attribution; + this.promoteId = options.promoteId; + const scale = ref_properties.EXTENT / this.tileSize; + this.workerOptions = ref_properties.extend({ + source: this.id, + cluster: options.cluster || false, + geojsonVtOptions: { + buffer: (options.buffer !== undefined ? options.buffer : 128) * scale, + tolerance: (options.tolerance !== undefined ? options.tolerance : 0.375) * scale, + extent: ref_properties.EXTENT, + maxZoom: this.maxzoom, + lineMetrics: options.lineMetrics || false, + generateId: options.generateId || false + }, + superclusterOptions: { + maxZoom: options.clusterMaxZoom !== undefined ? options.clusterMaxZoom : this.maxzoom - 1, + minPoints: Math.max(2, options.clusterMinPoints || 2), + extent: ref_properties.EXTENT, + radius: (options.clusterRadius || 50) * scale, + log: false, + generateId: options.generateId || false + }, + clusterProperties: options.clusterProperties, + filter: options.filter + }, options.workerOptions); + } + load() { + this.fire(new ref_properties.Event('dataloading', { dataType: 'source' })); + this._updateWorkerData(err => { + if (err) { + this.fire(new ref_properties.ErrorEvent(err)); + return; + } + const data = { + dataType: 'source', + sourceDataType: 'metadata' + }; + if (this._collectResourceTiming && this._resourceTiming && this._resourceTiming.length > 0) { + data.resourceTiming = this._resourceTiming; + this._resourceTiming = []; + } + this.fire(new ref_properties.Event('data', data)); + }); + } + onAdd(map) { + this.map = map; + this.load(); + } + setData(data) { + this._data = data; + this.fire(new ref_properties.Event('dataloading', { dataType: 'source' })); + this._updateWorkerData(err => { + if (err) { + this.fire(new ref_properties.ErrorEvent(err)); + return; + } + const data = { + dataType: 'source', + sourceDataType: 'content' + }; + if (this._collectResourceTiming && this._resourceTiming && this._resourceTiming.length > 0) { + data.resourceTiming = this._resourceTiming; + this._resourceTiming = []; + } + this.fire(new ref_properties.Event('data', data)); + }); + return this; + } + getClusterExpansionZoom(clusterId, callback) { + this.actor.send('geojson.getClusterExpansionZoom', { + clusterId, + source: this.id + }, callback); + return this; + } + getClusterChildren(clusterId, callback) { + this.actor.send('geojson.getClusterChildren', { + clusterId, + source: this.id + }, callback); + return this; + } + getClusterLeaves(clusterId, limit, offset, callback) { + this.actor.send('geojson.getClusterLeaves', { + source: this.id, + clusterId, + limit, + offset + }, callback); + return this; + } + _updateWorkerData(callback) { + this._loaded = false; + const options = ref_properties.extend({}, this.workerOptions); + const data = this._data; + if (typeof data === 'string') { + options.request = this.map._requestManager.transformRequest(ref_properties.browser.resolveURL(data), ref_properties.ResourceType.Source); + options.request.collectResourceTiming = this._collectResourceTiming; + } else { + options.data = JSON.stringify(data); + } + this.actor.send(`${ this.type }.loadData`, options, (err, result) => { + if (this._removed || result && result.abandoned) { + return; + } + this._loaded = true; + if (result && result.resourceTiming && result.resourceTiming[this.id]) + this._resourceTiming = result.resourceTiming[this.id].slice(0); + this.actor.send(`${ this.type }.coalesce`, { source: options.source }, null); + callback(err); + }); + } + loaded() { + return this._loaded; + } + loadTile(tile, callback) { + const message = !tile.actor ? 'loadTile' : 'reloadTile'; + tile.actor = this.actor; + const params = { + type: this.type, + uid: tile.uid, + tileID: tile.tileID, + tileZoom: tile.tileZoom, + zoom: tile.tileID.overscaledZ, + maxZoom: this.maxzoom, + tileSize: this.tileSize, + source: this.id, + pixelRatio: ref_properties.browser.devicePixelRatio, + showCollisionBoxes: this.map.showCollisionBoxes, + promoteId: this.promoteId + }; + tile.request = this.actor.send(message, params, (err, data) => { + delete tile.request; + tile.unloadVectorData(); + if (tile.aborted) { + return callback(null); + } + if (err) { + return callback(err); + } + tile.loadVectorData(data, this.map.painter, message === 'reloadTile'); + return callback(null); + }); + } + abortTile(tile) { + if (tile.request) { + tile.request.cancel(); + delete tile.request; + } + tile.aborted = true; + } + unloadTile(tile) { + tile.unloadVectorData(); + this.actor.send('removeTile', { + uid: tile.uid, + type: this.type, + source: this.id + }); + } + onRemove() { + this._removed = true; + this.actor.send('removeSource', { + type: this.type, + source: this.id + }); + } + serialize() { + return ref_properties.extend({}, this._options, { + type: this.type, + data: this._data + }); + } + hasTransition() { + return false; + } +} + +var rasterBoundsAttributes = ref_properties.createLayout([ + { + name: 'a_pos', + type: 'Int16', + components: 2 + }, + { + name: 'a_texture_pos', + type: 'Int16', + components: 2 + } +]); + +class ImageSource extends ref_properties.Evented { + constructor(id, options, dispatcher, eventedParent) { + super(); + this.id = id; + this.dispatcher = dispatcher; + this.coordinates = options.coordinates; + this.type = 'image'; + this.minzoom = 0; + this.maxzoom = 22; + this.tileSize = 512; + this.tiles = {}; + this._loaded = false; + this.setEventedParent(eventedParent); + this.options = options; + } + load(newCoordinates, successCallback) { + this._loaded = false; + this.fire(new ref_properties.Event('dataloading', { dataType: 'source' })); + this.url = this.options.url; + ref_properties.getImage(this.map._requestManager.transformRequest(this.url, ref_properties.ResourceType.Image), (err, image) => { + this._loaded = true; + if (err) { + this.fire(new ref_properties.ErrorEvent(err)); + } else if (image) { + this.image = image; + if (newCoordinates) { + this.coordinates = newCoordinates; + } + if (successCallback) { + successCallback(); + } + this._finishLoading(); + } + }); + } + loaded() { + return this._loaded; + } + updateImage(options) { + if (!this.image || !options.url) { + return this; + } + this.options.url = options.url; + this.load(options.coordinates, () => { + this.texture = null; + }); + return this; + } + _finishLoading() { + if (this.map) { + this.setCoordinates(this.coordinates); + this.fire(new ref_properties.Event('data', { + dataType: 'source', + sourceDataType: 'metadata' + })); + } + } + onAdd(map) { + this.map = map; + this.load(); + } + setCoordinates(coordinates) { + this.coordinates = coordinates; + const cornerCoords = coordinates.map(ref_properties.MercatorCoordinate.fromLngLat); + this.tileID = getCoordinatesCenterTileID(cornerCoords); + this.minzoom = this.maxzoom = this.tileID.z; + const tileCoords = cornerCoords.map(coord => this.tileID.getTilePoint(coord)._round()); + this._boundsArray = new ref_properties.StructArrayLayout4i8(); + this._boundsArray.emplaceBack(tileCoords[0].x, tileCoords[0].y, 0, 0); + this._boundsArray.emplaceBack(tileCoords[1].x, tileCoords[1].y, ref_properties.EXTENT, 0); + this._boundsArray.emplaceBack(tileCoords[3].x, tileCoords[3].y, 0, ref_properties.EXTENT); + this._boundsArray.emplaceBack(tileCoords[2].x, tileCoords[2].y, ref_properties.EXTENT, ref_properties.EXTENT); + if (this.boundsBuffer) { + this.boundsBuffer.destroy(); + delete this.boundsBuffer; + } + this.fire(new ref_properties.Event('data', { + dataType: 'source', + sourceDataType: 'content' + })); + return this; + } + prepare() { + if (Object.keys(this.tiles).length === 0 || !this.image) { + return; + } + const context = this.map.painter.context; + const gl = context.gl; + if (!this.boundsBuffer) { + this.boundsBuffer = context.createVertexBuffer(this._boundsArray, rasterBoundsAttributes.members); + } + if (!this.boundsSegments) { + this.boundsSegments = ref_properties.SegmentVector.simpleSegment(0, 0, 4, 2); + } + if (!this.texture) { + this.texture = new ref_properties.Texture(context, this.image, gl.RGBA); + this.texture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + } + for (const w in this.tiles) { + const tile = this.tiles[w]; + if (tile.state !== 'loaded') { + tile.state = 'loaded'; + tile.texture = this.texture; + } + } + } + loadTile(tile, callback) { + if (this.tileID && this.tileID.equals(tile.tileID.canonical)) { + this.tiles[String(tile.tileID.wrap)] = tile; + tile.buckets = {}; + callback(null); + } else { + tile.state = 'errored'; + callback(null); + } + } + serialize() { + return { + type: 'image', + url: this.options.url, + coordinates: this.coordinates + }; + } + hasTransition() { + return false; + } +} +function getCoordinatesCenterTileID(coords) { + let minX = Infinity; + let minY = Infinity; + let maxX = -Infinity; + let maxY = -Infinity; + for (const coord of coords) { + minX = Math.min(minX, coord.x); + minY = Math.min(minY, coord.y); + maxX = Math.max(maxX, coord.x); + maxY = Math.max(maxY, coord.y); + } + const dx = maxX - minX; + const dy = maxY - minY; + const dMax = Math.max(dx, dy); + const zoom = Math.max(0, Math.floor(-Math.log(dMax) / Math.LN2)); + const tilesAtZoom = Math.pow(2, zoom); + return new ref_properties.CanonicalTileID(zoom, Math.floor((minX + maxX) / 2 * tilesAtZoom), Math.floor((minY + maxY) / 2 * tilesAtZoom)); +} + +class VideoSource extends ImageSource { + constructor(id, options, dispatcher, eventedParent) { + super(id, options, dispatcher, eventedParent); + this.roundZoom = true; + this.type = 'video'; + this.options = options; + } + load() { + this._loaded = false; + const options = this.options; + this.urls = []; + for (const url of options.urls) { + this.urls.push(this.map._requestManager.transformRequest(url, ref_properties.ResourceType.Source).url); + } + ref_properties.getVideo(this.urls, (err, video) => { + this._loaded = true; + if (err) { + this.fire(new ref_properties.ErrorEvent(err)); + } else if (video) { + this.video = video; + this.video.loop = true; + this.video.addEventListener('playing', () => { + this.map.triggerRepaint(); + }); + if (this.map) { + this.video.play(); + } + this._finishLoading(); + } + }); + } + pause() { + if (this.video) { + this.video.pause(); + } + } + play() { + if (this.video) { + this.video.play(); + } + } + seek(seconds) { + if (this.video) { + const seekableRange = this.video.seekable; + if (seconds < seekableRange.start(0) || seconds > seekableRange.end(0)) { + this.fire(new ref_properties.ErrorEvent(new ref_properties.ValidationError(`sources.${ this.id }`, null, `Playback for this video can be set only between the ${ seekableRange.start(0) } and ${ seekableRange.end(0) }-second mark.`))); + } else + this.video.currentTime = seconds; + } + } + getVideo() { + return this.video; + } + onAdd(map) { + if (this.map) + return; + this.map = map; + this.load(); + if (this.video) { + this.video.play(); + this.setCoordinates(this.coordinates); + } + } + prepare() { + if (Object.keys(this.tiles).length === 0 || this.video.readyState < 2) { + return; + } + const context = this.map.painter.context; + const gl = context.gl; + if (!this.boundsBuffer) { + this.boundsBuffer = context.createVertexBuffer(this._boundsArray, rasterBoundsAttributes.members); + } + if (!this.boundsSegments) { + this.boundsSegments = ref_properties.SegmentVector.simpleSegment(0, 0, 4, 2); + } + if (!this.texture) { + this.texture = new ref_properties.Texture(context, this.video, gl.RGBA); + this.texture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + } else if (!this.video.paused) { + this.texture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, gl.RGBA, gl.UNSIGNED_BYTE, this.video); + } + for (const w in this.tiles) { + const tile = this.tiles[w]; + if (tile.state !== 'loaded') { + tile.state = 'loaded'; + tile.texture = this.texture; + } + } + } + serialize() { + return { + type: 'video', + urls: this.urls, + coordinates: this.coordinates + }; + } + hasTransition() { + return this.video && !this.video.paused; + } +} + +class CanvasSource extends ImageSource { + constructor(id, options, dispatcher, eventedParent) { + super(id, options, dispatcher, eventedParent); + if (!options.coordinates) { + this.fire(new ref_properties.ErrorEvent(new ref_properties.ValidationError(`sources.${ id }`, null, 'missing required property "coordinates"'))); + } else if (!Array.isArray(options.coordinates) || options.coordinates.length !== 4 || options.coordinates.some(c => !Array.isArray(c) || c.length !== 2 || c.some(l => typeof l !== 'number'))) { + this.fire(new ref_properties.ErrorEvent(new ref_properties.ValidationError(`sources.${ id }`, null, '"coordinates" property must be an array of 4 longitude/latitude array pairs'))); + } + if (options.animate && typeof options.animate !== 'boolean') { + this.fire(new ref_properties.ErrorEvent(new ref_properties.ValidationError(`sources.${ id }`, null, 'optional "animate" property must be a boolean value'))); + } + if (!options.canvas) { + this.fire(new ref_properties.ErrorEvent(new ref_properties.ValidationError(`sources.${ id }`, null, 'missing required property "canvas"'))); + } else if (typeof options.canvas !== 'string' && !(options.canvas instanceof ref_properties.window.HTMLCanvasElement)) { + this.fire(new ref_properties.ErrorEvent(new ref_properties.ValidationError(`sources.${ id }`, null, '"canvas" must be either a string representing the ID of the canvas element from which to read, or an HTMLCanvasElement instance'))); + } + this.options = options; + this.animate = options.animate !== undefined ? options.animate : true; + } + load() { + this._loaded = true; + if (!this.canvas) { + this.canvas = this.options.canvas instanceof ref_properties.window.HTMLCanvasElement ? this.options.canvas : ref_properties.window.document.getElementById(this.options.canvas); + } + this.width = this.canvas.width; + this.height = this.canvas.height; + if (this._hasInvalidDimensions()) { + this.fire(new ref_properties.ErrorEvent(new Error('Canvas dimensions cannot be less than or equal to zero.'))); + return; + } + this.play = function () { + this._playing = true; + this.map.triggerRepaint(); + }; + this.pause = function () { + if (this._playing) { + this.prepare(); + this._playing = false; + } + }; + this._finishLoading(); + } + getCanvas() { + return this.canvas; + } + onAdd(map) { + this.map = map; + this.load(); + if (this.canvas) { + if (this.animate) + this.play(); + } + } + onRemove() { + this.pause(); + } + prepare() { + let resize = false; + if (this.canvas.width !== this.width) { + this.width = this.canvas.width; + resize = true; + } + if (this.canvas.height !== this.height) { + this.height = this.canvas.height; + resize = true; + } + if (this._hasInvalidDimensions()) + return; + if (Object.keys(this.tiles).length === 0) + return; + const context = this.map.painter.context; + const gl = context.gl; + if (!this.boundsBuffer) { + this.boundsBuffer = context.createVertexBuffer(this._boundsArray, rasterBoundsAttributes.members); + } + if (!this.boundsSegments) { + this.boundsSegments = ref_properties.SegmentVector.simpleSegment(0, 0, 4, 2); + } + if (!this.texture) { + this.texture = new ref_properties.Texture(context, this.canvas, gl.RGBA, { premultiply: true }); + } else if (resize || this._playing) { + this.texture.update(this.canvas, { premultiply: true }); + } + for (const w in this.tiles) { + const tile = this.tiles[w]; + if (tile.state !== 'loaded') { + tile.state = 'loaded'; + tile.texture = this.texture; + } + } + } + serialize() { + return { + type: 'canvas', + coordinates: this.coordinates + }; + } + hasTransition() { + return this._playing; + } + _hasInvalidDimensions() { + for (const x of [ + this.canvas.width, + this.canvas.height + ]) { + if (isNaN(x) || x <= 0) + return true; + } + return false; + } +} + +const sourceTypes = { + vector: VectorTileSource, + raster: RasterTileSource, + 'raster-dem': RasterDEMTileSource, + geojson: GeoJSONSource, + video: VideoSource, + image: ImageSource, + canvas: CanvasSource +}; +const create = function (id, specification, dispatcher, eventedParent) { + const source = new sourceTypes[specification.type](id, specification, dispatcher, eventedParent); + if (source.id !== id) { + throw new Error(`Expected Source id to be ${ id } instead of ${ source.id }`); + } + ref_properties.bindAll([ + 'load', + 'abort', + 'unload', + 'serialize', + 'prepare' + ], source); + return source; +}; +const getType = function (name) { + return sourceTypes[name]; +}; +const setType = function (name, type) { + sourceTypes[name] = type; +}; + +function getPixelPosMatrix(transform, tileID) { + const t = ref_properties.identity([]); + ref_properties.scale(t, t, [ + transform.width * 0.5, + -transform.height * 0.5, + 1 + ]); + ref_properties.translate(t, t, [ + 1, + -1, + 0 + ]); + return ref_properties.multiply(t, t, transform.calculatePosMatrix(tileID.toUnwrapped())); +} +function queryRenderedFeatures(sourceCache, styleLayers, serializedLayers, queryGeometry, params, transform, use3DQuery, visualizeQueryGeometry = false) { + const tileResults = sourceCache.tilesIn(queryGeometry, use3DQuery, visualizeQueryGeometry); + tileResults.sort(sortTilesIn); + const renderedFeatureLayers = []; + for (const tileResult of tileResults) { + renderedFeatureLayers.push({ + wrappedTileID: tileResult.tile.tileID.wrapped().key, + queryResults: tileResult.tile.queryRenderedFeatures(styleLayers, serializedLayers, sourceCache._state, tileResult, params, transform, getPixelPosMatrix(sourceCache.transform, tileResult.tile.tileID), visualizeQueryGeometry) + }); + } + const result = mergeRenderedFeatureLayers(renderedFeatureLayers); + for (const layerID in result) { + result[layerID].forEach(featureWrapper => { + const feature = featureWrapper.feature; + const state = sourceCache.getFeatureState(feature.layer['source-layer'], feature.id); + feature.source = feature.layer.source; + if (feature.layer['source-layer']) { + feature.sourceLayer = feature.layer['source-layer']; + } + feature.state = state; + }); + } + return result; +} +function queryRenderedSymbols(styleLayers, serializedLayers, getLayerSourceCache, queryGeometry, params, collisionIndex, retainedQueryData) { + const result = {}; + const renderedSymbols = collisionIndex.queryRenderedSymbols(queryGeometry); + const bucketQueryData = []; + for (const bucketInstanceId of Object.keys(renderedSymbols).map(Number)) { + bucketQueryData.push(retainedQueryData[bucketInstanceId]); + } + bucketQueryData.sort(sortTilesIn); + for (const queryData of bucketQueryData) { + const bucketSymbols = queryData.featureIndex.lookupSymbolFeatures(renderedSymbols[queryData.bucketInstanceId], serializedLayers, queryData.bucketIndex, queryData.sourceLayerIndex, params.filter, params.layers, params.availableImages, styleLayers); + for (const layerID in bucketSymbols) { + const resultFeatures = result[layerID] = result[layerID] || []; + const layerSymbols = bucketSymbols[layerID]; + layerSymbols.sort((a, b) => { + const featureSortOrder = queryData.featureSortOrder; + if (featureSortOrder) { + const sortedA = featureSortOrder.indexOf(a.featureIndex); + const sortedB = featureSortOrder.indexOf(b.featureIndex); + return sortedB - sortedA; + } else { + return b.featureIndex - a.featureIndex; + } + }); + for (const symbolFeature of layerSymbols) { + resultFeatures.push(symbolFeature); + } + } + } + for (const layerName in result) { + result[layerName].forEach(featureWrapper => { + const feature = featureWrapper.feature; + const layer = styleLayers[layerName]; + const sourceCache = getLayerSourceCache(layer); + const state = sourceCache.getFeatureState(feature.layer['source-layer'], feature.id); + feature.source = feature.layer.source; + if (feature.layer['source-layer']) { + feature.sourceLayer = feature.layer['source-layer']; + } + feature.state = state; + }); + } + return result; +} +function querySourceFeatures(sourceCache, params) { + const tiles = sourceCache.getRenderableIds().map(id => { + return sourceCache.getTileByID(id); + }); + const result = []; + const dataTiles = {}; + for (let i = 0; i < tiles.length; i++) { + const tile = tiles[i]; + const dataID = tile.tileID.canonical.key; + if (!dataTiles[dataID]) { + dataTiles[dataID] = true; + tile.querySourceFeatures(result, params); + } + } + return result; +} +function sortTilesIn(a, b) { + const idA = a.tileID; + const idB = b.tileID; + return idA.overscaledZ - idB.overscaledZ || idA.canonical.y - idB.canonical.y || idA.wrap - idB.wrap || idA.canonical.x - idB.canonical.x; +} +function mergeRenderedFeatureLayers(tiles) { + const result = {}; + const wrappedIDLayerMap = {}; + for (const tile of tiles) { + const queryResults = tile.queryResults; + const wrappedID = tile.wrappedTileID; + const wrappedIDLayers = wrappedIDLayerMap[wrappedID] = wrappedIDLayerMap[wrappedID] || {}; + for (const layerID in queryResults) { + const tileFeatures = queryResults[layerID]; + const wrappedIDFeatures = wrappedIDLayers[layerID] = wrappedIDLayers[layerID] || {}; + const resultFeatures = result[layerID] = result[layerID] || []; + for (const tileFeature of tileFeatures) { + if (!wrappedIDFeatures[tileFeature.featureIndex]) { + wrappedIDFeatures[tileFeature.featureIndex] = true; + resultFeatures.push(tileFeature); + } + } + } + } + return result; +} + +function WebWorker () { + return exported.workerClass != null ? new exported.workerClass() : new ref_properties.window.Worker(exported.workerUrl); +} + +const PRELOAD_POOL_ID = 'mapboxgl_preloaded_worker_pool'; +class WorkerPool { + constructor() { + this.active = {}; + } + acquire(mapId) { + if (!this.workers) { + this.workers = []; + while (this.workers.length < WorkerPool.workerCount) { + this.workers.push(new WebWorker()); + } + } + this.active[mapId] = true; + return this.workers.slice(); + } + release(mapId) { + delete this.active[mapId]; + if (this.numActive() === 0) { + this.workers.forEach(w => { + w.terminate(); + }); + this.workers = null; + } + } + isPreloaded() { + return !!this.active[PRELOAD_POOL_ID]; + } + numActive() { + return Object.keys(this.active).length; + } +} +WorkerPool.workerCount = 2; + +let globalWorkerPool; +function getGlobalWorkerPool() { + if (!globalWorkerPool) { + globalWorkerPool = new WorkerPool(); + } + return globalWorkerPool; +} +function prewarm() { + const workerPool = getGlobalWorkerPool(); + workerPool.acquire(PRELOAD_POOL_ID); +} +function clearPrewarmedResources() { + const pool = globalWorkerPool; + if (pool) { + if (pool.isPreloaded() && pool.numActive() === 1) { + pool.release(PRELOAD_POOL_ID); + globalWorkerPool = null; + } else { + console.warn('Could not clear WebWorkers since there are active Map instances that still reference it. The pre-warmed WebWorker pool can only be cleared when all map instances have been removed with map.remove()'); + } + } +} + +function deref(layer, parent) { + const result = {}; + for (const k in layer) { + if (k !== 'ref') { + result[k] = layer[k]; + } + } + ref_properties.refProperties.forEach(k => { + if (k in parent) { + result[k] = parent[k]; + } + }); + return result; +} +function derefLayers(layers) { + layers = layers.slice(); + const map = Object.create(null); + for (let i = 0; i < layers.length; i++) { + map[layers[i].id] = layers[i]; + } + for (let i = 0; i < layers.length; i++) { + if ('ref' in layers[i]) { + layers[i] = deref(layers[i], map[layers[i].ref]); + } + } + return layers; +} + +function emptyStyle() { + const style = {}; + const version = ref_properties.styleSpec['$version']; + for (const styleKey in ref_properties.styleSpec['$root']) { + const spec = ref_properties.styleSpec['$root'][styleKey]; + if (spec.required) { + let value = null; + if (styleKey === 'version') { + value = version; + } else { + if (spec.type === 'array') { + value = []; + } else { + value = {}; + } + } + if (value != null) { + style[styleKey] = value; + } + } + } + return style; +} + +const operations = { + setStyle: 'setStyle', + addLayer: 'addLayer', + removeLayer: 'removeLayer', + setPaintProperty: 'setPaintProperty', + setLayoutProperty: 'setLayoutProperty', + setFilter: 'setFilter', + addSource: 'addSource', + removeSource: 'removeSource', + setGeoJSONSourceData: 'setGeoJSONSourceData', + setLayerZoomRange: 'setLayerZoomRange', + setLayerProperty: 'setLayerProperty', + setCenter: 'setCenter', + setZoom: 'setZoom', + setBearing: 'setBearing', + setPitch: 'setPitch', + setSprite: 'setSprite', + setGlyphs: 'setGlyphs', + setTransition: 'setTransition', + setLight: 'setLight', + setTerrain: 'setTerrain' +}; +function addSource(sourceId, after, commands) { + commands.push({ + command: operations.addSource, + args: [ + sourceId, + after[sourceId] + ] + }); +} +function removeSource(sourceId, commands, sourcesRemoved) { + commands.push({ + command: operations.removeSource, + args: [sourceId] + }); + sourcesRemoved[sourceId] = true; +} +function updateSource(sourceId, after, commands, sourcesRemoved) { + removeSource(sourceId, commands, sourcesRemoved); + addSource(sourceId, after, commands); +} +function canUpdateGeoJSON(before, after, sourceId) { + let prop; + for (prop in before[sourceId]) { + if (!before[sourceId].hasOwnProperty(prop)) + continue; + if (prop !== 'data' && !ref_properties.deepEqual(before[sourceId][prop], after[sourceId][prop])) { + return false; + } + } + for (prop in after[sourceId]) { + if (!after[sourceId].hasOwnProperty(prop)) + continue; + if (prop !== 'data' && !ref_properties.deepEqual(before[sourceId][prop], after[sourceId][prop])) { + return false; + } + } + return true; +} +function diffSources(before, after, commands, sourcesRemoved) { + before = before || {}; + after = after || {}; + let sourceId; + for (sourceId in before) { + if (!before.hasOwnProperty(sourceId)) + continue; + if (!after.hasOwnProperty(sourceId)) { + removeSource(sourceId, commands, sourcesRemoved); + } + } + for (sourceId in after) { + if (!after.hasOwnProperty(sourceId)) + continue; + if (!before.hasOwnProperty(sourceId)) { + addSource(sourceId, after, commands); + } else if (!ref_properties.deepEqual(before[sourceId], after[sourceId])) { + if (before[sourceId].type === 'geojson' && after[sourceId].type === 'geojson' && canUpdateGeoJSON(before, after, sourceId)) { + commands.push({ + command: operations.setGeoJSONSourceData, + args: [ + sourceId, + after[sourceId].data + ] + }); + } else { + updateSource(sourceId, after, commands, sourcesRemoved); + } + } + } +} +function diffLayerPropertyChanges(before, after, commands, layerId, klass, command) { + before = before || {}; + after = after || {}; + let prop; + for (prop in before) { + if (!before.hasOwnProperty(prop)) + continue; + if (!ref_properties.deepEqual(before[prop], after[prop])) { + commands.push({ + command, + args: [ + layerId, + prop, + after[prop], + klass + ] + }); + } + } + for (prop in after) { + if (!after.hasOwnProperty(prop) || before.hasOwnProperty(prop)) + continue; + if (!ref_properties.deepEqual(before[prop], after[prop])) { + commands.push({ + command, + args: [ + layerId, + prop, + after[prop], + klass + ] + }); + } + } +} +function pluckId(layer) { + return layer.id; +} +function indexById(group, layer) { + group[layer.id] = layer; + return group; +} +function diffLayers(before, after, commands) { + before = before || []; + after = after || []; + const beforeOrder = before.map(pluckId); + const afterOrder = after.map(pluckId); + const beforeIndex = before.reduce(indexById, {}); + const afterIndex = after.reduce(indexById, {}); + const tracker = beforeOrder.slice(); + const clean = Object.create(null); + let i, d, layerId, beforeLayer, afterLayer, insertBeforeLayerId, prop; + for (i = 0, d = 0; i < beforeOrder.length; i++) { + layerId = beforeOrder[i]; + if (!afterIndex.hasOwnProperty(layerId)) { + commands.push({ + command: operations.removeLayer, + args: [layerId] + }); + tracker.splice(tracker.indexOf(layerId, d), 1); + } else { + d++; + } + } + for (i = 0, d = 0; i < afterOrder.length; i++) { + layerId = afterOrder[afterOrder.length - 1 - i]; + if (tracker[tracker.length - 1 - i] === layerId) + continue; + if (beforeIndex.hasOwnProperty(layerId)) { + commands.push({ + command: operations.removeLayer, + args: [layerId] + }); + tracker.splice(tracker.lastIndexOf(layerId, tracker.length - d), 1); + } else { + d++; + } + insertBeforeLayerId = tracker[tracker.length - i]; + commands.push({ + command: operations.addLayer, + args: [ + afterIndex[layerId], + insertBeforeLayerId + ] + }); + tracker.splice(tracker.length - i, 0, layerId); + clean[layerId] = true; + } + for (i = 0; i < afterOrder.length; i++) { + layerId = afterOrder[i]; + beforeLayer = beforeIndex[layerId]; + afterLayer = afterIndex[layerId]; + if (clean[layerId] || ref_properties.deepEqual(beforeLayer, afterLayer)) + continue; + if (!ref_properties.deepEqual(beforeLayer.source, afterLayer.source) || !ref_properties.deepEqual(beforeLayer['source-layer'], afterLayer['source-layer']) || !ref_properties.deepEqual(beforeLayer.type, afterLayer.type)) { + commands.push({ + command: operations.removeLayer, + args: [layerId] + }); + insertBeforeLayerId = tracker[tracker.lastIndexOf(layerId) + 1]; + commands.push({ + command: operations.addLayer, + args: [ + afterLayer, + insertBeforeLayerId + ] + }); + continue; + } + diffLayerPropertyChanges(beforeLayer.layout, afterLayer.layout, commands, layerId, null, operations.setLayoutProperty); + diffLayerPropertyChanges(beforeLayer.paint, afterLayer.paint, commands, layerId, null, operations.setPaintProperty); + if (!ref_properties.deepEqual(beforeLayer.filter, afterLayer.filter)) { + commands.push({ + command: operations.setFilter, + args: [ + layerId, + afterLayer.filter + ] + }); + } + if (!ref_properties.deepEqual(beforeLayer.minzoom, afterLayer.minzoom) || !ref_properties.deepEqual(beforeLayer.maxzoom, afterLayer.maxzoom)) { + commands.push({ + command: operations.setLayerZoomRange, + args: [ + layerId, + afterLayer.minzoom, + afterLayer.maxzoom + ] + }); + } + for (prop in beforeLayer) { + if (!beforeLayer.hasOwnProperty(prop)) + continue; + if (prop === 'layout' || prop === 'paint' || prop === 'filter' || prop === 'metadata' || prop === 'minzoom' || prop === 'maxzoom') + continue; + if (prop.indexOf('paint.') === 0) { + diffLayerPropertyChanges(beforeLayer[prop], afterLayer[prop], commands, layerId, prop.slice(6), operations.setPaintProperty); + } else if (!ref_properties.deepEqual(beforeLayer[prop], afterLayer[prop])) { + commands.push({ + command: operations.setLayerProperty, + args: [ + layerId, + prop, + afterLayer[prop] + ] + }); + } + } + for (prop in afterLayer) { + if (!afterLayer.hasOwnProperty(prop) || beforeLayer.hasOwnProperty(prop)) + continue; + if (prop === 'layout' || prop === 'paint' || prop === 'filter' || prop === 'metadata' || prop === 'minzoom' || prop === 'maxzoom') + continue; + if (prop.indexOf('paint.') === 0) { + diffLayerPropertyChanges(beforeLayer[prop], afterLayer[prop], commands, layerId, prop.slice(6), operations.setPaintProperty); + } else if (!ref_properties.deepEqual(beforeLayer[prop], afterLayer[prop])) { + commands.push({ + command: operations.setLayerProperty, + args: [ + layerId, + prop, + afterLayer[prop] + ] + }); + } + } + } +} +function diffStyles(before, after) { + if (!before) + return [{ + command: operations.setStyle, + args: [after] + }]; + let commands = []; + try { + if (!ref_properties.deepEqual(before.version, after.version)) { + return [{ + command: operations.setStyle, + args: [after] + }]; + } + if (!ref_properties.deepEqual(before.center, after.center)) { + commands.push({ + command: operations.setCenter, + args: [after.center] + }); + } + if (!ref_properties.deepEqual(before.zoom, after.zoom)) { + commands.push({ + command: operations.setZoom, + args: [after.zoom] + }); + } + if (!ref_properties.deepEqual(before.bearing, after.bearing)) { + commands.push({ + command: operations.setBearing, + args: [after.bearing] + }); + } + if (!ref_properties.deepEqual(before.pitch, after.pitch)) { + commands.push({ + command: operations.setPitch, + args: [after.pitch] + }); + } + if (!ref_properties.deepEqual(before.sprite, after.sprite)) { + commands.push({ + command: operations.setSprite, + args: [after.sprite] + }); + } + if (!ref_properties.deepEqual(before.glyphs, after.glyphs)) { + commands.push({ + command: operations.setGlyphs, + args: [after.glyphs] + }); + } + if (!ref_properties.deepEqual(before.transition, after.transition)) { + commands.push({ + command: operations.setTransition, + args: [after.transition] + }); + } + if (!ref_properties.deepEqual(before.light, after.light)) { + commands.push({ + command: operations.setLight, + args: [after.light] + }); + } + const sourcesRemoved = {}; + const removeOrAddSourceCommands = []; + diffSources(before.sources, after.sources, removeOrAddSourceCommands, sourcesRemoved); + const beforeLayers = []; + if (before.layers) { + before.layers.forEach(layer => { + if (sourcesRemoved[layer.source]) { + commands.push({ + command: operations.removeLayer, + args: [layer.id] + }); + } else { + beforeLayers.push(layer); + } + }); + } + let beforeTerrain = before.terrain; + if (beforeTerrain) { + if (sourcesRemoved[beforeTerrain.source]) { + commands.push({ + command: operations.setTerrain, + args: [undefined] + }); + beforeTerrain = undefined; + } + } + commands = commands.concat(removeOrAddSourceCommands); + if (!ref_properties.deepEqual(beforeTerrain, after.terrain)) { + commands.push({ + command: operations.setTerrain, + args: [after.terrain] + }); + } + diffLayers(beforeLayers, after.layers, commands); + } catch (e) { + console.warn('Unable to compute style diff:', e); + commands = [{ + command: operations.setStyle, + args: [after] + }]; + } + return commands; +} + +class PathInterpolator { + constructor(points_, padding_) { + this.reset(points_, padding_); + } + reset(points_, padding_) { + this.points = points_ || []; + this._distances = [0]; + for (let i = 1; i < this.points.length; i++) { + this._distances[i] = this._distances[i - 1] + this.points[i].dist(this.points[i - 1]); + } + this.length = this._distances[this._distances.length - 1]; + this.padding = Math.min(padding_ || 0, this.length * 0.5); + this.paddedLength = this.length - this.padding * 2; + } + lerp(t) { + if (this.points.length === 1) { + return this.points[0]; + } + t = ref_properties.clamp(t, 0, 1); + let currentIndex = 1; + let distOfCurrentIdx = this._distances[currentIndex]; + const distToTarget = t * this.paddedLength + this.padding; + while (distOfCurrentIdx < distToTarget && currentIndex < this._distances.length) { + distOfCurrentIdx = this._distances[++currentIndex]; + } + const idxOfPrevPoint = currentIndex - 1; + const distOfPrevIdx = this._distances[idxOfPrevPoint]; + const segmentLength = distOfCurrentIdx - distOfPrevIdx; + const segmentT = segmentLength > 0 ? (distToTarget - distOfPrevIdx) / segmentLength : 0; + return this.points[idxOfPrevPoint].mult(1 - segmentT).add(this.points[currentIndex].mult(segmentT)); + } +} + +class GridIndex { + constructor(width, height, cellSize) { + const boxCells = this.boxCells = []; + const circleCells = this.circleCells = []; + this.xCellCount = Math.ceil(width / cellSize); + this.yCellCount = Math.ceil(height / cellSize); + for (let i = 0; i < this.xCellCount * this.yCellCount; i++) { + boxCells.push([]); + circleCells.push([]); + } + this.circleKeys = []; + this.boxKeys = []; + this.bboxes = []; + this.circles = []; + this.width = width; + this.height = height; + this.xScale = this.xCellCount / width; + this.yScale = this.yCellCount / height; + this.boxUid = 0; + this.circleUid = 0; + } + keysLength() { + return this.boxKeys.length + this.circleKeys.length; + } + insert(key, x1, y1, x2, y2) { + this._forEachCell(x1, y1, x2, y2, this._insertBoxCell, this.boxUid++); + this.boxKeys.push(key); + this.bboxes.push(x1); + this.bboxes.push(y1); + this.bboxes.push(x2); + this.bboxes.push(y2); + } + insertCircle(key, x, y, radius) { + this._forEachCell(x - radius, y - radius, x + radius, y + radius, this._insertCircleCell, this.circleUid++); + this.circleKeys.push(key); + this.circles.push(x); + this.circles.push(y); + this.circles.push(radius); + } + _insertBoxCell(x1, y1, x2, y2, cellIndex, uid) { + this.boxCells[cellIndex].push(uid); + } + _insertCircleCell(x1, y1, x2, y2, cellIndex, uid) { + this.circleCells[cellIndex].push(uid); + } + _query(x1, y1, x2, y2, hitTest, predicate) { + if (x2 < 0 || x1 > this.width || y2 < 0 || y1 > this.height) { + return hitTest ? false : []; + } + const result = []; + if (x1 <= 0 && y1 <= 0 && this.width <= x2 && this.height <= y2) { + if (hitTest) { + return true; + } + for (let boxUid = 0; boxUid < this.boxKeys.length; boxUid++) { + result.push({ + key: this.boxKeys[boxUid], + x1: this.bboxes[boxUid * 4], + y1: this.bboxes[boxUid * 4 + 1], + x2: this.bboxes[boxUid * 4 + 2], + y2: this.bboxes[boxUid * 4 + 3] + }); + } + for (let circleUid = 0; circleUid < this.circleKeys.length; circleUid++) { + const x = this.circles[circleUid * 3]; + const y = this.circles[circleUid * 3 + 1]; + const radius = this.circles[circleUid * 3 + 2]; + result.push({ + key: this.circleKeys[circleUid], + x1: x - radius, + y1: y - radius, + x2: x + radius, + y2: y + radius + }); + } + return predicate ? result.filter(predicate) : result; + } else { + const queryArgs = { + hitTest, + seenUids: { + box: {}, + circle: {} + } + }; + this._forEachCell(x1, y1, x2, y2, this._queryCell, result, queryArgs, predicate); + return hitTest ? result.length > 0 : result; + } + } + _queryCircle(x, y, radius, hitTest, predicate) { + const x1 = x - radius; + const x2 = x + radius; + const y1 = y - radius; + const y2 = y + radius; + if (x2 < 0 || x1 > this.width || y2 < 0 || y1 > this.height) { + return hitTest ? false : []; + } + const result = []; + const queryArgs = { + hitTest, + circle: { + x, + y, + radius + }, + seenUids: { + box: {}, + circle: {} + } + }; + this._forEachCell(x1, y1, x2, y2, this._queryCellCircle, result, queryArgs, predicate); + return hitTest ? result.length > 0 : result; + } + query(x1, y1, x2, y2, predicate) { + return this._query(x1, y1, x2, y2, false, predicate); + } + hitTest(x1, y1, x2, y2, predicate) { + return this._query(x1, y1, x2, y2, true, predicate); + } + hitTestCircle(x, y, radius, predicate) { + return this._queryCircle(x, y, radius, true, predicate); + } + _queryCell(x1, y1, x2, y2, cellIndex, result, queryArgs, predicate) { + const seenUids = queryArgs.seenUids; + const boxCell = this.boxCells[cellIndex]; + if (boxCell !== null) { + const bboxes = this.bboxes; + for (const boxUid of boxCell) { + if (!seenUids.box[boxUid]) { + seenUids.box[boxUid] = true; + const offset = boxUid * 4; + if (x1 <= bboxes[offset + 2] && y1 <= bboxes[offset + 3] && x2 >= bboxes[offset + 0] && y2 >= bboxes[offset + 1] && (!predicate || predicate(this.boxKeys[boxUid]))) { + if (queryArgs.hitTest) { + result.push(true); + return true; + } else { + result.push({ + key: this.boxKeys[boxUid], + x1: bboxes[offset], + y1: bboxes[offset + 1], + x2: bboxes[offset + 2], + y2: bboxes[offset + 3] + }); + } + } + } + } + } + const circleCell = this.circleCells[cellIndex]; + if (circleCell !== null) { + const circles = this.circles; + for (const circleUid of circleCell) { + if (!seenUids.circle[circleUid]) { + seenUids.circle[circleUid] = true; + const offset = circleUid * 3; + if (this._circleAndRectCollide(circles[offset], circles[offset + 1], circles[offset + 2], x1, y1, x2, y2) && (!predicate || predicate(this.circleKeys[circleUid]))) { + if (queryArgs.hitTest) { + result.push(true); + return true; + } else { + const x = circles[offset]; + const y = circles[offset + 1]; + const radius = circles[offset + 2]; + result.push({ + key: this.circleKeys[circleUid], + x1: x - radius, + y1: y - radius, + x2: x + radius, + y2: y + radius + }); + } + } + } + } + } + } + _queryCellCircle(x1, y1, x2, y2, cellIndex, result, queryArgs, predicate) { + const circle = queryArgs.circle; + const seenUids = queryArgs.seenUids; + const boxCell = this.boxCells[cellIndex]; + if (boxCell !== null) { + const bboxes = this.bboxes; + for (const boxUid of boxCell) { + if (!seenUids.box[boxUid]) { + seenUids.box[boxUid] = true; + const offset = boxUid * 4; + if (this._circleAndRectCollide(circle.x, circle.y, circle.radius, bboxes[offset + 0], bboxes[offset + 1], bboxes[offset + 2], bboxes[offset + 3]) && (!predicate || predicate(this.boxKeys[boxUid]))) { + result.push(true); + return true; + } + } + } + } + const circleCell = this.circleCells[cellIndex]; + if (circleCell !== null) { + const circles = this.circles; + for (const circleUid of circleCell) { + if (!seenUids.circle[circleUid]) { + seenUids.circle[circleUid] = true; + const offset = circleUid * 3; + if (this._circlesCollide(circles[offset], circles[offset + 1], circles[offset + 2], circle.x, circle.y, circle.radius) && (!predicate || predicate(this.circleKeys[circleUid]))) { + result.push(true); + return true; + } + } + } + } + } + _forEachCell(x1, y1, x2, y2, fn, arg1, arg2, predicate) { + const cx1 = this._convertToXCellCoord(x1); + const cy1 = this._convertToYCellCoord(y1); + const cx2 = this._convertToXCellCoord(x2); + const cy2 = this._convertToYCellCoord(y2); + for (let x = cx1; x <= cx2; x++) { + for (let y = cy1; y <= cy2; y++) { + const cellIndex = this.xCellCount * y + x; + if (fn.call(this, x1, y1, x2, y2, cellIndex, arg1, arg2, predicate)) + return; + } + } + } + _convertToXCellCoord(x) { + return Math.max(0, Math.min(this.xCellCount - 1, Math.floor(x * this.xScale))); + } + _convertToYCellCoord(y) { + return Math.max(0, Math.min(this.yCellCount - 1, Math.floor(y * this.yScale))); + } + _circlesCollide(x1, y1, r1, x2, y2, r2) { + const dx = x2 - x1; + const dy = y2 - y1; + const bothRadii = r1 + r2; + return bothRadii * bothRadii > dx * dx + dy * dy; + } + _circleAndRectCollide(circleX, circleY, radius, x1, y1, x2, y2) { + const halfRectWidth = (x2 - x1) / 2; + const distX = Math.abs(circleX - (x1 + halfRectWidth)); + if (distX > halfRectWidth + radius) { + return false; + } + const halfRectHeight = (y2 - y1) / 2; + const distY = Math.abs(circleY - (y1 + halfRectHeight)); + if (distY > halfRectHeight + radius) { + return false; + } + if (distX <= halfRectWidth || distY <= halfRectHeight) { + return true; + } + const dx = distX - halfRectWidth; + const dy = distY - halfRectHeight; + return dx * dx + dy * dy <= radius * radius; + } +} + +function getLabelPlaneMatrix(posMatrix, pitchWithMap, rotateWithMap, transform, pixelsToTileUnits) { + const m = ref_properties.create(); + if (pitchWithMap) { + ref_properties.scale(m, m, [ + 1 / pixelsToTileUnits, + 1 / pixelsToTileUnits, + 1 + ]); + if (!rotateWithMap) { + ref_properties.rotateZ(m, m, transform.angle); + } + } else { + ref_properties.multiply(m, transform.labelPlaneMatrix, posMatrix); + } + return m; +} +function getGlCoordMatrix(posMatrix, pitchWithMap, rotateWithMap, transform, pixelsToTileUnits) { + if (pitchWithMap) { + const m = ref_properties.clone(posMatrix); + ref_properties.scale(m, m, [ + pixelsToTileUnits, + pixelsToTileUnits, + 1 + ]); + if (!rotateWithMap) { + ref_properties.rotateZ(m, m, -transform.angle); + } + return m; + } else { + return transform.glCoordMatrix; + } +} +function project(point, matrix, elevation = 0) { + const pos = [ + point.x, + point.y, + elevation, + 1 + ]; + if (elevation) { + ref_properties.transformMat4(pos, pos, matrix); + } else { + xyTransformMat4(pos, pos, matrix); + } + const w = pos[3]; + return { + point: new ref_properties.Point(pos[0] / w, pos[1] / w), + signedDistanceFromCamera: w + }; +} +function getPerspectiveRatio(cameraToCenterDistance, signedDistanceFromCamera) { + return Math.min(0.5 + 0.5 * (cameraToCenterDistance / signedDistanceFromCamera), 1.5); +} +function isVisible(anchorPos, clippingBuffer) { + const x = anchorPos[0] / anchorPos[3]; + const y = anchorPos[1] / anchorPos[3]; + const inPaddedViewport = x >= -clippingBuffer[0] && x <= clippingBuffer[0] && y >= -clippingBuffer[1] && y <= clippingBuffer[1]; + return inPaddedViewport; +} +function updateLineLabels(bucket, posMatrix, painter, isText, labelPlaneMatrix, glCoordMatrix, pitchWithMap, keepUpright, getElevation) { + const sizeData = isText ? bucket.textSizeData : bucket.iconSizeData; + const partiallyEvaluatedSize = ref_properties.evaluateSizeForZoom(sizeData, painter.transform.zoom); + const clippingBuffer = [ + 256 / painter.width * 2 + 1, + 256 / painter.height * 2 + 1 + ]; + const dynamicLayoutVertexArray = isText ? bucket.text.dynamicLayoutVertexArray : bucket.icon.dynamicLayoutVertexArray; + dynamicLayoutVertexArray.clear(); + const lineVertexArray = bucket.lineVertexArray; + const placedSymbols = isText ? bucket.text.placedSymbolArray : bucket.icon.placedSymbolArray; + const aspectRatio = painter.transform.width / painter.transform.height; + let useVertical = false; + for (let s = 0; s < placedSymbols.length; s++) { + const symbol = placedSymbols.get(s); + if (symbol.hidden || symbol.writingMode === ref_properties.WritingMode.vertical && !useVertical) { + hideGlyphs(symbol.numGlyphs, dynamicLayoutVertexArray); + continue; + } + useVertical = false; + const elevation = getElevation ? getElevation({ + x: symbol.anchorX, + y: symbol.anchorY + }) : 0; + const anchorPos = [ + symbol.anchorX, + symbol.anchorY, + elevation, + 1 + ]; + ref_properties.transformMat4(anchorPos, anchorPos, posMatrix); + if (!isVisible(anchorPos, clippingBuffer)) { + hideGlyphs(symbol.numGlyphs, dynamicLayoutVertexArray); + continue; + } + const cameraToAnchorDistance = anchorPos[3]; + const perspectiveRatio = getPerspectiveRatio(painter.transform.cameraToCenterDistance, cameraToAnchorDistance); + const fontSize = ref_properties.evaluateSizeForFeature(sizeData, partiallyEvaluatedSize, symbol); + const pitchScaledFontSize = pitchWithMap ? fontSize / perspectiveRatio : fontSize * perspectiveRatio; + const tileAnchorPoint = new ref_properties.Point(symbol.anchorX, symbol.anchorY); + const transformedTileAnchor = project(tileAnchorPoint, labelPlaneMatrix, elevation); + if (transformedTileAnchor.signedDistanceFromCamera <= 0) { + hideGlyphs(symbol.numGlyphs, dynamicLayoutVertexArray); + continue; + } + const anchorPoint = transformedTileAnchor.point; + let projectionCache = {}; + const getElevationForPlacement = pitchWithMap ? null : getElevation; + const placeUnflipped = placeGlyphsAlongLine(symbol, pitchScaledFontSize, false, keepUpright, posMatrix, labelPlaneMatrix, glCoordMatrix, bucket.glyphOffsetArray, lineVertexArray, dynamicLayoutVertexArray, anchorPoint, tileAnchorPoint, projectionCache, aspectRatio, getElevationForPlacement); + useVertical = placeUnflipped.useVertical; + if (getElevationForPlacement && placeUnflipped.needsFlipping) + projectionCache = {}; + if (placeUnflipped.notEnoughRoom || useVertical || placeUnflipped.needsFlipping && placeGlyphsAlongLine(symbol, pitchScaledFontSize, true, keepUpright, posMatrix, labelPlaneMatrix, glCoordMatrix, bucket.glyphOffsetArray, lineVertexArray, dynamicLayoutVertexArray, anchorPoint, tileAnchorPoint, projectionCache, aspectRatio, getElevationForPlacement).notEnoughRoom) { + hideGlyphs(symbol.numGlyphs, dynamicLayoutVertexArray); + } + } + if (isText) { + bucket.text.dynamicLayoutVertexBuffer.updateData(dynamicLayoutVertexArray); + } else { + bucket.icon.dynamicLayoutVertexBuffer.updateData(dynamicLayoutVertexArray); + } +} +function placeFirstAndLastGlyph(fontScale, glyphOffsetArray, lineOffsetX, lineOffsetY, flip, anchorPoint, tileAnchorPoint, symbol, lineVertexArray, labelPlaneMatrix, projectionCache, getElevation, returnPathInTileCoords) { + const glyphEndIndex = symbol.glyphStartIndex + symbol.numGlyphs; + const lineStartIndex = symbol.lineStartIndex; + const lineEndIndex = symbol.lineStartIndex + symbol.lineLength; + const firstGlyphOffset = glyphOffsetArray.getoffsetX(symbol.glyphStartIndex); + const lastGlyphOffset = glyphOffsetArray.getoffsetX(glyphEndIndex - 1); + const firstPlacedGlyph = placeGlyphAlongLine(fontScale * firstGlyphOffset, lineOffsetX, lineOffsetY, flip, anchorPoint, tileAnchorPoint, symbol.segment, lineStartIndex, lineEndIndex, lineVertexArray, labelPlaneMatrix, projectionCache, getElevation, returnPathInTileCoords, true); + if (!firstPlacedGlyph) + return null; + const lastPlacedGlyph = placeGlyphAlongLine(fontScale * lastGlyphOffset, lineOffsetX, lineOffsetY, flip, anchorPoint, tileAnchorPoint, symbol.segment, lineStartIndex, lineEndIndex, lineVertexArray, labelPlaneMatrix, projectionCache, getElevation, returnPathInTileCoords, true); + if (!lastPlacedGlyph) + return null; + return { + first: firstPlacedGlyph, + last: lastPlacedGlyph + }; +} +function requiresOrientationChange(writingMode, firstPoint, lastPoint, aspectRatio) { + if (writingMode === ref_properties.WritingMode.horizontal) { + const rise = Math.abs(lastPoint.y - firstPoint.y); + const run = Math.abs(lastPoint.x - firstPoint.x) * aspectRatio; + if (rise > run) { + return { useVertical: true }; + } + } + if (writingMode === ref_properties.WritingMode.vertical ? firstPoint.y < lastPoint.y : firstPoint.x > lastPoint.x) { + return { needsFlipping: true }; + } + return null; +} +function placeGlyphsAlongLine(symbol, fontSize, flip, keepUpright, posMatrix, labelPlaneMatrix, glCoordMatrix, glyphOffsetArray, lineVertexArray, dynamicLayoutVertexArray, anchorPoint, tileAnchorPoint, projectionCache, aspectRatio, getElevation) { + const fontScale = fontSize / 24; + const lineOffsetX = symbol.lineOffsetX * fontScale; + const lineOffsetY = symbol.lineOffsetY * fontScale; + let placedGlyphs; + if (symbol.numGlyphs > 1) { + const glyphEndIndex = symbol.glyphStartIndex + symbol.numGlyphs; + const lineStartIndex = symbol.lineStartIndex; + const lineEndIndex = symbol.lineStartIndex + symbol.lineLength; + const firstAndLastGlyph = placeFirstAndLastGlyph(fontScale, glyphOffsetArray, lineOffsetX, lineOffsetY, flip, anchorPoint, tileAnchorPoint, symbol, lineVertexArray, labelPlaneMatrix, projectionCache, getElevation); + if (!firstAndLastGlyph) { + return { notEnoughRoom: true }; + } + const firstPoint = project(firstAndLastGlyph.first.point, glCoordMatrix).point; + const lastPoint = project(firstAndLastGlyph.last.point, glCoordMatrix).point; + if (keepUpright && !flip) { + const orientationChange = requiresOrientationChange(symbol.writingMode, firstPoint, lastPoint, aspectRatio); + if (orientationChange) { + return orientationChange; + } + } + placedGlyphs = [firstAndLastGlyph.first]; + for (let glyphIndex = symbol.glyphStartIndex + 1; glyphIndex < glyphEndIndex - 1; glyphIndex++) { + placedGlyphs.push(placeGlyphAlongLine(fontScale * glyphOffsetArray.getoffsetX(glyphIndex), lineOffsetX, lineOffsetY, flip, anchorPoint, tileAnchorPoint, symbol.segment, lineStartIndex, lineEndIndex, lineVertexArray, labelPlaneMatrix, projectionCache, getElevation)); + } + placedGlyphs.push(firstAndLastGlyph.last); + } else { + if (keepUpright && !flip) { + const a = project(tileAnchorPoint, posMatrix).point; + const tileVertexIndex = symbol.lineStartIndex + symbol.segment + 1; + const tileSegmentEnd = new ref_properties.Point(lineVertexArray.getx(tileVertexIndex), lineVertexArray.gety(tileVertexIndex)); + const projectedVertex = project(tileSegmentEnd, posMatrix); + const b = projectedVertex.signedDistanceFromCamera > 0 ? projectedVertex.point : projectTruncatedLineSegment(tileAnchorPoint, tileSegmentEnd, a, 1, posMatrix); + const orientationChange = requiresOrientationChange(symbol.writingMode, a, b, aspectRatio); + if (orientationChange) { + return orientationChange; + } + } + const singleGlyph = placeGlyphAlongLine(fontScale * glyphOffsetArray.getoffsetX(symbol.glyphStartIndex), lineOffsetX, lineOffsetY, flip, anchorPoint, tileAnchorPoint, symbol.segment, symbol.lineStartIndex, symbol.lineStartIndex + symbol.lineLength, lineVertexArray, labelPlaneMatrix, projectionCache, getElevation); + if (!singleGlyph) + return { notEnoughRoom: true }; + placedGlyphs = [singleGlyph]; + } + for (const glyph of placedGlyphs) { + ref_properties.addDynamicAttributes(dynamicLayoutVertexArray, glyph.point, glyph.angle); + } + return {}; +} +function projectTruncatedLineSegment(previousTilePoint, currentTilePoint, previousProjectedPoint, minimumLength, projectionMatrix, getElevation) { + const unitVertex = previousTilePoint.add(previousTilePoint.sub(currentTilePoint)._unit()); + const projectedUnitVertex = project(unitVertex, projectionMatrix, getElevation ? getElevation(unitVertex) : 0).point; + const projectedUnitSegment = previousProjectedPoint.sub(projectedUnitVertex); + return previousProjectedPoint.add(projectedUnitSegment._mult(minimumLength / projectedUnitSegment.mag())); +} +function interpolate(p1, p2, a) { + const b = 1 - a; + return new ref_properties.Point(p1.x * b + p2.x * a, p1.y * b + p2.y * a); +} +function placeGlyphAlongLine(offsetX, lineOffsetX, lineOffsetY, flip, anchorPoint, tileAnchorPoint, anchorSegment, lineStartIndex, lineEndIndex, lineVertexArray, labelPlaneMatrix, projectionCache, getElevation, returnPathInTileCoords, endGlyph) { + const combinedOffsetX = flip ? offsetX - lineOffsetX : offsetX + lineOffsetX; + let dir = combinedOffsetX > 0 ? 1 : -1; + let angle = 0; + if (flip) { + dir *= -1; + angle = Math.PI; + } + if (dir < 0) + angle += Math.PI; + let currentIndex = dir > 0 ? lineStartIndex + anchorSegment : lineStartIndex + anchorSegment + 1; + let current = anchorPoint; + let prev = anchorPoint; + let distanceToPrev = 0; + let currentSegmentDistance = 0; + const absOffsetX = Math.abs(combinedOffsetX); + const pathVertices = []; + const tilePath = []; + let currentVertex = tileAnchorPoint; + const previousTilePoint = () => { + const previousLineVertexIndex = currentIndex - dir; + return distanceToPrev === 0 ? tileAnchorPoint : new ref_properties.Point(lineVertexArray.getx(previousLineVertexIndex), lineVertexArray.gety(previousLineVertexIndex)); + }; + const getTruncatedLineSegment = () => { + return projectTruncatedLineSegment(previousTilePoint(), currentVertex, prev, absOffsetX - distanceToPrev + 1, labelPlaneMatrix, getElevation); + }; + while (distanceToPrev + currentSegmentDistance <= absOffsetX) { + currentIndex += dir; + if (currentIndex < lineStartIndex || currentIndex >= lineEndIndex) + return null; + prev = current; + pathVertices.push(current); + if (returnPathInTileCoords) + tilePath.push(currentVertex || previousTilePoint()); + current = projectionCache[currentIndex]; + if (current === undefined) { + currentVertex = new ref_properties.Point(lineVertexArray.getx(currentIndex), lineVertexArray.gety(currentIndex)); + const projection = project(currentVertex, labelPlaneMatrix, getElevation ? getElevation(currentVertex) : 0); + if (projection.signedDistanceFromCamera > 0) { + current = projectionCache[currentIndex] = projection.point; + } else { + current = getTruncatedLineSegment(); + } + } else { + currentVertex = null; + } + distanceToPrev += currentSegmentDistance; + currentSegmentDistance = prev.dist(current); + } + if (endGlyph && getElevation) { + currentVertex = currentVertex || new ref_properties.Point(lineVertexArray.getx(currentIndex), lineVertexArray.gety(currentIndex)); + projectionCache[currentIndex] = current = projectionCache[currentIndex] === undefined ? current : getTruncatedLineSegment(); + currentSegmentDistance = prev.dist(current); + } + const segmentInterpolationT = (absOffsetX - distanceToPrev) / currentSegmentDistance; + const prevToCurrent = current.sub(prev); + const p = prevToCurrent.mult(segmentInterpolationT)._add(prev); + if (lineOffsetY) + p._add(prevToCurrent._unit()._perp()._mult(lineOffsetY * dir)); + const segmentAngle = angle + Math.atan2(current.y - prev.y, current.x - prev.x); + pathVertices.push(p); + if (returnPathInTileCoords) { + currentVertex = currentVertex || new ref_properties.Point(lineVertexArray.getx(currentIndex), lineVertexArray.gety(currentIndex)); + const prevVertex = tilePath.length > 0 ? tilePath[tilePath.length - 1] : currentVertex; + tilePath.push(interpolate(prevVertex, currentVertex, segmentInterpolationT)); + } + return { + point: p, + angle: segmentAngle, + path: pathVertices, + tilePath + }; +} +const hiddenGlyphAttributes = new Float32Array([ + -Infinity, + -Infinity, + 0, + -Infinity, + -Infinity, + 0, + -Infinity, + -Infinity, + 0, + -Infinity, + -Infinity, + 0 +]); +function hideGlyphs(num, dynamicLayoutVertexArray) { + for (let i = 0; i < num; i++) { + const offset = dynamicLayoutVertexArray.length; + dynamicLayoutVertexArray.resize(offset + 4); + dynamicLayoutVertexArray.float32.set(hiddenGlyphAttributes, offset * 3); + } +} +function xyTransformMat4(out, a, m) { + const x = a[0], y = a[1]; + out[0] = m[0] * x + m[4] * y + m[12]; + out[1] = m[1] * x + m[5] * y + m[13]; + out[3] = m[3] * x + m[7] * y + m[15]; + return out; +} + +const viewportPadding = 100; +class CollisionIndex { + constructor(transform, grid = new GridIndex(transform.width + 2 * viewportPadding, transform.height + 2 * viewportPadding, 25), ignoredGrid = new GridIndex(transform.width + 2 * viewportPadding, transform.height + 2 * viewportPadding, 25)) { + this.transform = transform; + this.grid = grid; + this.ignoredGrid = ignoredGrid; + this.pitchfactor = Math.cos(transform._pitch) * transform.cameraToCenterDistance; + this.screenRightBoundary = transform.width + viewportPadding; + this.screenBottomBoundary = transform.height + viewportPadding; + this.gridRightBoundary = transform.width + 2 * viewportPadding; + this.gridBottomBoundary = transform.height + 2 * viewportPadding; + } + placeCollisionBox(scale, collisionBox, shift, allowOverlap, textPixelRatio, posMatrix, collisionGroupPredicate) { + const projectedPoint = this.projectAndGetPerspectiveRatio(posMatrix, collisionBox.anchorPointX, collisionBox.anchorPointY, collisionBox.elevation); + const tileToViewport = textPixelRatio * projectedPoint.perspectiveRatio; + const tlX = (collisionBox.x1 * scale + shift.x - collisionBox.padding) * tileToViewport + projectedPoint.point.x; + const tlY = (collisionBox.y1 * scale + shift.y - collisionBox.padding) * tileToViewport + projectedPoint.point.y; + const brX = (collisionBox.x2 * scale + shift.x + collisionBox.padding) * tileToViewport + projectedPoint.point.x; + const brY = (collisionBox.y2 * scale + shift.y + collisionBox.padding) * tileToViewport + projectedPoint.point.y; + const minPerspectiveRatio = 0.55; + const isClipped = projectedPoint.perspectiveRatio <= minPerspectiveRatio || projectedPoint.aboveHorizon; + if (!this.isInsideGrid(tlX, tlY, brX, brY) || !allowOverlap && this.grid.hitTest(tlX, tlY, brX, brY, collisionGroupPredicate) || isClipped) { + return { + box: [], + offscreen: false + }; + } + return { + box: [ + tlX, + tlY, + brX, + brY + ], + offscreen: this.isOffscreen(tlX, tlY, brX, brY) + }; + } + placeCollisionCircles(allowOverlap, symbol, lineVertexArray, glyphOffsetArray, fontSize, posMatrix, labelPlaneMatrix, labelToScreenMatrix, showCollisionCircles, pitchWithMap, collisionGroupPredicate, circlePixelDiameter, textPixelPadding, tileID) { + const placedCollisionCircles = []; + const elevation = this.transform.elevation; + const getElevation = elevation ? p => elevation.getAtTileOffset(tileID, p.x, p.y) : _ => 0; + const tileUnitAnchorPoint = new ref_properties.Point(symbol.anchorX, symbol.anchorY); + const anchorElevation = getElevation(tileUnitAnchorPoint); + const screenAnchorPoint = this.projectAndGetPerspectiveRatio(posMatrix, tileUnitAnchorPoint.x, tileUnitAnchorPoint.y, anchorElevation); + const {perspectiveRatio} = screenAnchorPoint; + const labelPlaneFontSize = pitchWithMap ? fontSize / perspectiveRatio : fontSize * perspectiveRatio; + const labelPlaneFontScale = labelPlaneFontSize / ref_properties.ONE_EM; + const labelPlaneAnchorPoint = project(tileUnitAnchorPoint, labelPlaneMatrix, anchorElevation).point; + const projectionCache = {}; + const lineOffsetX = symbol.lineOffsetX * labelPlaneFontScale; + const lineOffsetY = symbol.lineOffsetY * labelPlaneFontScale; + const firstAndLastGlyph = screenAnchorPoint.signedDistanceFromCamera > 0 ? placeFirstAndLastGlyph(labelPlaneFontScale, glyphOffsetArray, lineOffsetX, lineOffsetY, false, labelPlaneAnchorPoint, tileUnitAnchorPoint, symbol, lineVertexArray, labelPlaneMatrix, projectionCache, elevation && !pitchWithMap ? getElevation : null, pitchWithMap && !!elevation) : null; + let collisionDetected = false; + let inGrid = false; + let entirelyOffscreen = true; + if (firstAndLastGlyph && !screenAnchorPoint.aboveHorizon) { + const radius = circlePixelDiameter * 0.5 * perspectiveRatio + textPixelPadding; + const screenPlaneMin = new ref_properties.Point(-viewportPadding, -viewportPadding); + const screenPlaneMax = new ref_properties.Point(this.screenRightBoundary, this.screenBottomBoundary); + const interpolator = new PathInterpolator(); + const first = firstAndLastGlyph.first; + const last = firstAndLastGlyph.last; + let projectedPath = []; + for (let i = first.path.length - 1; i >= 1; i--) { + projectedPath.push(first.path[i]); + } + for (let i = 1; i < last.path.length; i++) { + projectedPath.push(last.path[i]); + } + const circleDist = radius * 2.5; + if (labelToScreenMatrix) { + const screenSpacePath = elevation ? projectedPath.map((p, index) => { + const z = getElevation(index < first.path.length - 1 ? first.tilePath[first.path.length - 1 - index] : last.tilePath[index - first.path.length + 2]); + return project(p, labelToScreenMatrix, z); + }) : projectedPath.map(p => project(p, labelToScreenMatrix)); + if (screenSpacePath.some(point => point.signedDistanceFromCamera <= 0)) { + projectedPath = []; + } else { + projectedPath = screenSpacePath.map(p => p.point); + } + } + let segments = []; + if (projectedPath.length > 0) { + const minPoint = projectedPath[0].clone(); + const maxPoint = projectedPath[0].clone(); + for (let i = 1; i < projectedPath.length; i++) { + minPoint.x = Math.min(minPoint.x, projectedPath[i].x); + minPoint.y = Math.min(minPoint.y, projectedPath[i].y); + maxPoint.x = Math.max(maxPoint.x, projectedPath[i].x); + maxPoint.y = Math.max(maxPoint.y, projectedPath[i].y); + } + if (minPoint.x >= screenPlaneMin.x && maxPoint.x <= screenPlaneMax.x && minPoint.y >= screenPlaneMin.y && maxPoint.y <= screenPlaneMax.y) { + segments = [projectedPath]; + } else if (maxPoint.x < screenPlaneMin.x || minPoint.x > screenPlaneMax.x || maxPoint.y < screenPlaneMin.y || minPoint.y > screenPlaneMax.y) { + segments = []; + } else { + segments = ref_properties.clipLine([projectedPath], screenPlaneMin.x, screenPlaneMin.y, screenPlaneMax.x, screenPlaneMax.y); + } + } + for (const seg of segments) { + interpolator.reset(seg, radius * 0.25); + let numCircles = 0; + if (interpolator.length <= 0.5 * radius) { + numCircles = 1; + } else { + numCircles = Math.ceil(interpolator.paddedLength / circleDist) + 1; + } + for (let i = 0; i < numCircles; i++) { + const t = i / Math.max(numCircles - 1, 1); + const circlePosition = interpolator.lerp(t); + const centerX = circlePosition.x + viewportPadding; + const centerY = circlePosition.y + viewportPadding; + placedCollisionCircles.push(centerX, centerY, radius, 0); + const x1 = centerX - radius; + const y1 = centerY - radius; + const x2 = centerX + radius; + const y2 = centerY + radius; + entirelyOffscreen = entirelyOffscreen && this.isOffscreen(x1, y1, x2, y2); + inGrid = inGrid || this.isInsideGrid(x1, y1, x2, y2); + if (!allowOverlap) { + if (this.grid.hitTestCircle(centerX, centerY, radius, collisionGroupPredicate)) { + collisionDetected = true; + if (!showCollisionCircles) { + return { + circles: [], + offscreen: false, + collisionDetected + }; + } + } + } + } + } + } + return { + circles: !showCollisionCircles && collisionDetected || !inGrid ? [] : placedCollisionCircles, + offscreen: entirelyOffscreen, + collisionDetected + }; + } + queryRenderedSymbols(viewportQueryGeometry) { + if (viewportQueryGeometry.length === 0 || this.grid.keysLength() === 0 && this.ignoredGrid.keysLength() === 0) { + return {}; + } + const query = []; + let minX = Infinity; + let minY = Infinity; + let maxX = -Infinity; + let maxY = -Infinity; + for (const point of viewportQueryGeometry) { + const gridPoint = new ref_properties.Point(point.x + viewportPadding, point.y + viewportPadding); + minX = Math.min(minX, gridPoint.x); + minY = Math.min(minY, gridPoint.y); + maxX = Math.max(maxX, gridPoint.x); + maxY = Math.max(maxY, gridPoint.y); + query.push(gridPoint); + } + const features = this.grid.query(minX, minY, maxX, maxY).concat(this.ignoredGrid.query(minX, minY, maxX, maxY)); + const seenFeatures = {}; + const result = {}; + for (const feature of features) { + const featureKey = feature.key; + if (seenFeatures[featureKey.bucketInstanceId] === undefined) { + seenFeatures[featureKey.bucketInstanceId] = {}; + } + if (seenFeatures[featureKey.bucketInstanceId][featureKey.featureIndex]) { + continue; + } + const bbox = [ + new ref_properties.Point(feature.x1, feature.y1), + new ref_properties.Point(feature.x2, feature.y1), + new ref_properties.Point(feature.x2, feature.y2), + new ref_properties.Point(feature.x1, feature.y2) + ]; + if (!ref_properties.polygonIntersectsPolygon(query, bbox)) { + continue; + } + seenFeatures[featureKey.bucketInstanceId][featureKey.featureIndex] = true; + if (result[featureKey.bucketInstanceId] === undefined) { + result[featureKey.bucketInstanceId] = []; + } + result[featureKey.bucketInstanceId].push(featureKey.featureIndex); + } + return result; + } + insertCollisionBox(collisionBox, ignorePlacement, bucketInstanceId, featureIndex, collisionGroupID) { + const grid = ignorePlacement ? this.ignoredGrid : this.grid; + const key = { + bucketInstanceId, + featureIndex, + collisionGroupID + }; + grid.insert(key, collisionBox[0], collisionBox[1], collisionBox[2], collisionBox[3]); + } + insertCollisionCircles(collisionCircles, ignorePlacement, bucketInstanceId, featureIndex, collisionGroupID) { + const grid = ignorePlacement ? this.ignoredGrid : this.grid; + const key = { + bucketInstanceId, + featureIndex, + collisionGroupID + }; + for (let k = 0; k < collisionCircles.length; k += 4) { + grid.insertCircle(key, collisionCircles[k], collisionCircles[k + 1], collisionCircles[k + 2]); + } + } + projectAndGetPerspectiveRatio(posMatrix, x, y, elevation) { + const p = [ + x, + y, + elevation || 0, + 1 + ]; + let aboveHorizon = false; + if (elevation || this.transform.pitch > 0) { + ref_properties.transformMat4(p, p, posMatrix); + aboveHorizon = p[2] > p[3]; + } else { + xyTransformMat4(p, p, posMatrix); + } + const a = new ref_properties.Point((p[0] / p[3] + 1) / 2 * this.transform.width + viewportPadding, (-p[1] / p[3] + 1) / 2 * this.transform.height + viewportPadding); + return { + point: a, + perspectiveRatio: Math.min(0.5 + 0.5 * (this.transform.cameraToCenterDistance / p[3]), 1.5), + signedDistanceFromCamera: p[3], + aboveHorizon + }; + } + isOffscreen(x1, y1, x2, y2) { + return x2 < viewportPadding || x1 >= this.screenRightBoundary || y2 < viewportPadding || y1 > this.screenBottomBoundary; + } + isInsideGrid(x1, y1, x2, y2) { + return x2 >= 0 && x1 < this.gridRightBoundary && y2 >= 0 && y1 < this.gridBottomBoundary; + } + getViewportMatrix() { + const m = ref_properties.identity([]); + ref_properties.translate(m, m, [ + -viewportPadding, + -viewportPadding, + 0 + ]); + return m; + } +} + +class OpacityState { + constructor(prevState, increment, placed, skipFade) { + if (prevState) { + this.opacity = Math.max(0, Math.min(1, prevState.opacity + (prevState.placed ? increment : -increment))); + } else { + this.opacity = skipFade && placed ? 1 : 0; + } + this.placed = placed; + } + isHidden() { + return this.opacity === 0 && !this.placed; + } +} +class JointOpacityState { + constructor(prevState, increment, placedText, placedIcon, skipFade) { + this.text = new OpacityState(prevState ? prevState.text : null, increment, placedText, skipFade); + this.icon = new OpacityState(prevState ? prevState.icon : null, increment, placedIcon, skipFade); + } + isHidden() { + return this.text.isHidden() && this.icon.isHidden(); + } +} +class JointPlacement { + constructor(text, icon, skipFade) { + this.text = text; + this.icon = icon; + this.skipFade = skipFade; + } +} +class CollisionCircleArray { + constructor() { + this.invProjMatrix = ref_properties.create(); + this.viewportMatrix = ref_properties.create(); + this.circles = []; + } +} +class RetainedQueryData { + constructor(bucketInstanceId, featureIndex, sourceLayerIndex, bucketIndex, tileID) { + this.bucketInstanceId = bucketInstanceId; + this.featureIndex = featureIndex; + this.sourceLayerIndex = sourceLayerIndex; + this.bucketIndex = bucketIndex; + this.tileID = tileID; + } +} +class CollisionGroups { + constructor(crossSourceCollisions) { + this.crossSourceCollisions = crossSourceCollisions; + this.maxGroupID = 0; + this.collisionGroups = {}; + } + get(sourceID) { + if (!this.crossSourceCollisions) { + if (!this.collisionGroups[sourceID]) { + const nextGroupID = ++this.maxGroupID; + this.collisionGroups[sourceID] = { + ID: nextGroupID, + predicate: key => { + return key.collisionGroupID === nextGroupID; + } + }; + } + return this.collisionGroups[sourceID]; + } else { + return { + ID: 0, + predicate: null + }; + } + } +} +function calculateVariableLayoutShift(anchor, width, height, textOffset, textBoxScale) { + const {horizontalAlign, verticalAlign} = ref_properties.getAnchorAlignment(anchor); + const shiftX = -(horizontalAlign - 0.5) * width; + const shiftY = -(verticalAlign - 0.5) * height; + const offset = ref_properties.evaluateVariableOffset(anchor, textOffset); + return new ref_properties.Point(shiftX + offset[0] * textBoxScale, shiftY + offset[1] * textBoxScale); +} +function offsetShift(shiftX, shiftY, rotateWithMap, pitchWithMap, angle) { + const shift = new ref_properties.Point(shiftX, shiftY); + if (rotateWithMap) { + shift._rotate(pitchWithMap ? angle : -angle); + } + return shift; +} +class Placement { + constructor(transform, fadeDuration, crossSourceCollisions, prevPlacement) { + this.transform = transform.clone(); + this.collisionIndex = new CollisionIndex(this.transform); + this.placements = {}; + this.opacities = {}; + this.variableOffsets = {}; + this.stale = false; + this.commitTime = 0; + this.fadeDuration = fadeDuration; + this.retainedQueryData = {}; + this.collisionGroups = new CollisionGroups(crossSourceCollisions); + this.collisionCircleArrays = {}; + this.prevPlacement = prevPlacement; + if (prevPlacement) { + prevPlacement.prevPlacement = undefined; + } + this.placedOrientations = {}; + } + getBucketParts(results, styleLayer, tile, sortAcrossTiles) { + const symbolBucket = tile.getBucket(styleLayer); + const bucketFeatureIndex = tile.latestFeatureIndex; + if (!symbolBucket || !bucketFeatureIndex || styleLayer.id !== symbolBucket.layerIds[0]) + return; + const collisionBoxArray = tile.collisionBoxArray; + const layout = symbolBucket.layers[0].layout; + const scale = Math.pow(2, this.transform.zoom - tile.tileID.overscaledZ); + const textPixelRatio = tile.tileSize / ref_properties.EXTENT; + const posMatrix = this.transform.calculatePosMatrix(tile.tileID.toUnwrapped()); + const pitchWithMap = layout.get('text-pitch-alignment') === 'map'; + const rotateWithMap = layout.get('text-rotation-alignment') === 'map'; + const pixelsToTiles = pixelsToTileUnits(tile, 1, this.transform.zoom); + const textLabelPlaneMatrix = getLabelPlaneMatrix(posMatrix, pitchWithMap, rotateWithMap, this.transform, pixelsToTiles); + let labelToScreenMatrix = null; + if (pitchWithMap) { + const glMatrix = getGlCoordMatrix(posMatrix, pitchWithMap, rotateWithMap, this.transform, pixelsToTiles); + labelToScreenMatrix = ref_properties.multiply([], this.transform.labelPlaneMatrix, glMatrix); + } + this.retainedQueryData[symbolBucket.bucketInstanceId] = new RetainedQueryData(symbolBucket.bucketInstanceId, bucketFeatureIndex, symbolBucket.sourceLayerIndex, symbolBucket.index, tile.tileID); + const parameters = { + bucket: symbolBucket, + layout, + posMatrix, + textLabelPlaneMatrix, + labelToScreenMatrix, + scale, + textPixelRatio, + holdingForFade: tile.holdingForFade(), + collisionBoxArray, + partiallyEvaluatedTextSize: ref_properties.evaluateSizeForZoom(symbolBucket.textSizeData, this.transform.zoom), + partiallyEvaluatedIconSize: ref_properties.evaluateSizeForZoom(symbolBucket.iconSizeData, this.transform.zoom), + collisionGroup: this.collisionGroups.get(symbolBucket.sourceID) + }; + if (sortAcrossTiles) { + for (const range of symbolBucket.sortKeyRanges) { + const {sortKey, symbolInstanceStart, symbolInstanceEnd} = range; + results.push({ + sortKey, + symbolInstanceStart, + symbolInstanceEnd, + parameters + }); + } + } else { + results.push({ + symbolInstanceStart: 0, + symbolInstanceEnd: symbolBucket.symbolInstances.length, + parameters + }); + } + } + attemptAnchorPlacement(anchor, textBox, width, height, textBoxScale, rotateWithMap, pitchWithMap, textPixelRatio, posMatrix, collisionGroup, textAllowOverlap, symbolInstance, symbolIndex, bucket, orientation, iconBox, textSize, iconSize) { + const textOffset = [ + symbolInstance.textOffset0, + symbolInstance.textOffset1 + ]; + const textScale = bucket.getSymbolInstanceTextSize(textSize, symbolInstance, this.transform.zoom, symbolIndex); + const shift = calculateVariableLayoutShift(anchor, width, height, textOffset, textBoxScale); + const placedGlyphBoxes = this.collisionIndex.placeCollisionBox(textScale, textBox, offsetShift(shift.x, shift.y, rotateWithMap, pitchWithMap, this.transform.angle), textAllowOverlap, textPixelRatio, posMatrix, collisionGroup.predicate); + if (iconBox) { + const placedIconBoxes = this.collisionIndex.placeCollisionBox(bucket.getSymbolInstanceIconSize(iconSize, this.transform.zoom, symbolIndex), iconBox, offsetShift(shift.x, shift.y, rotateWithMap, pitchWithMap, this.transform.angle), textAllowOverlap, textPixelRatio, posMatrix, collisionGroup.predicate); + if (placedIconBoxes.box.length === 0) + return; + } + if (placedGlyphBoxes.box.length > 0) { + let prevAnchor; + if (this.prevPlacement && this.prevPlacement.variableOffsets[symbolInstance.crossTileID] && this.prevPlacement.placements[symbolInstance.crossTileID] && this.prevPlacement.placements[symbolInstance.crossTileID].text) { + prevAnchor = this.prevPlacement.variableOffsets[symbolInstance.crossTileID].anchor; + } + this.variableOffsets[symbolInstance.crossTileID] = { + textOffset, + width, + height, + anchor, + textBoxScale, + prevAnchor + }; + this.markUsedJustification(bucket, anchor, symbolInstance, orientation); + if (bucket.allowVerticalPlacement) { + this.markUsedOrientation(bucket, orientation, symbolInstance); + this.placedOrientations[symbolInstance.crossTileID] = orientation; + } + return { + shift, + placedGlyphBoxes + }; + } + } + placeLayerBucketPart(bucketPart, seenCrossTileIDs, showCollisionBoxes) { + const {bucket, layout, posMatrix, textLabelPlaneMatrix, labelToScreenMatrix, textPixelRatio, holdingForFade, collisionBoxArray, partiallyEvaluatedTextSize, partiallyEvaluatedIconSize, collisionGroup} = bucketPart.parameters; + const textOptional = layout.get('text-optional'); + const iconOptional = layout.get('icon-optional'); + const textAllowOverlap = layout.get('text-allow-overlap'); + const iconAllowOverlap = layout.get('icon-allow-overlap'); + const rotateWithMap = layout.get('text-rotation-alignment') === 'map'; + const pitchWithMap = layout.get('text-pitch-alignment') === 'map'; + const hasIconTextFit = layout.get('icon-text-fit') !== 'none'; + const zOrderByViewportY = layout.get('symbol-z-order') === 'viewport-y'; + const alwaysShowText = textAllowOverlap && (iconAllowOverlap || !bucket.hasIconData() || iconOptional); + const alwaysShowIcon = iconAllowOverlap && (textAllowOverlap || !bucket.hasTextData() || textOptional); + if (!bucket.collisionArrays && collisionBoxArray) { + bucket.deserializeCollisionBoxes(collisionBoxArray); + } + if (showCollisionBoxes) { + bucket.updateCollisionDebugBuffers(this.transform.zoom, collisionBoxArray); + } + const placeSymbol = (symbolInstance, symbolIndex, collisionArrays) => { + if (seenCrossTileIDs[symbolInstance.crossTileID]) + return; + if (holdingForFade) { + this.placements[symbolInstance.crossTileID] = new JointPlacement(false, false, false); + return; + } + let placeText = false; + let placeIcon = false; + let offscreen = true; + let shift = null; + let placed = { + box: null, + offscreen: null + }; + let placedVerticalText = { + box: null, + offscreen: null + }; + let placedGlyphBoxes = null; + let placedGlyphCircles = null; + let placedIconBoxes = null; + let textFeatureIndex = 0; + let verticalTextFeatureIndex = 0; + let iconFeatureIndex = 0; + if (collisionArrays.textFeatureIndex) { + textFeatureIndex = collisionArrays.textFeatureIndex; + } else if (symbolInstance.useRuntimeCollisionCircles) { + textFeatureIndex = symbolInstance.featureIndex; + } + if (collisionArrays.verticalTextFeatureIndex) { + verticalTextFeatureIndex = collisionArrays.verticalTextFeatureIndex; + } + const updateElevation = box => { + if (!this.transform.elevation && !box.elevation) + return; + box.elevation = this.transform.elevation ? this.transform.elevation.getAtTileOffset(this.retainedQueryData[bucket.bucketInstanceId].tileID, box.anchorPointX, box.anchorPointY) : 0; + }; + const textBox = collisionArrays.textBox; + if (textBox) { + updateElevation(textBox); + const updatePreviousOrientationIfNotPlaced = isPlaced => { + let previousOrientation = ref_properties.WritingMode.horizontal; + if (bucket.allowVerticalPlacement && !isPlaced && this.prevPlacement) { + const prevPlacedOrientation = this.prevPlacement.placedOrientations[symbolInstance.crossTileID]; + if (prevPlacedOrientation) { + this.placedOrientations[symbolInstance.crossTileID] = prevPlacedOrientation; + previousOrientation = prevPlacedOrientation; + this.markUsedOrientation(bucket, previousOrientation, symbolInstance); + } + } + return previousOrientation; + }; + const placeTextForPlacementModes = (placeHorizontalFn, placeVerticalFn) => { + if (bucket.allowVerticalPlacement && symbolInstance.numVerticalGlyphVertices > 0 && collisionArrays.verticalTextBox) { + for (const placementMode of bucket.writingModes) { + if (placementMode === ref_properties.WritingMode.vertical) { + placed = placeVerticalFn(); + placedVerticalText = placed; + } else { + placed = placeHorizontalFn(); + } + if (placed && placed.box && placed.box.length) + break; + } + } else { + placed = placeHorizontalFn(); + } + }; + if (!layout.get('text-variable-anchor')) { + const placeBox = (collisionTextBox, orientation) => { + const textScale = bucket.getSymbolInstanceTextSize(partiallyEvaluatedTextSize, symbolInstance, this.transform.zoom, symbolIndex); + const placedFeature = this.collisionIndex.placeCollisionBox(textScale, collisionTextBox, new ref_properties.Point(0, 0), textAllowOverlap, textPixelRatio, posMatrix, collisionGroup.predicate); + if (placedFeature && placedFeature.box && placedFeature.box.length) { + this.markUsedOrientation(bucket, orientation, symbolInstance); + this.placedOrientations[symbolInstance.crossTileID] = orientation; + } + return placedFeature; + }; + const placeHorizontal = () => { + return placeBox(textBox, ref_properties.WritingMode.horizontal); + }; + const placeVertical = () => { + const verticalTextBox = collisionArrays.verticalTextBox; + if (bucket.allowVerticalPlacement && symbolInstance.numVerticalGlyphVertices > 0 && verticalTextBox) { + updateElevation(verticalTextBox); + return placeBox(verticalTextBox, ref_properties.WritingMode.vertical); + } + return { + box: null, + offscreen: null + }; + }; + placeTextForPlacementModes(placeHorizontal, placeVertical); + updatePreviousOrientationIfNotPlaced(placed && placed.box && placed.box.length); + } else { + let anchors = layout.get('text-variable-anchor'); + if (this.prevPlacement && this.prevPlacement.variableOffsets[symbolInstance.crossTileID]) { + const prevOffsets = this.prevPlacement.variableOffsets[symbolInstance.crossTileID]; + if (anchors.indexOf(prevOffsets.anchor) > 0) { + anchors = anchors.filter(anchor => anchor !== prevOffsets.anchor); + anchors.unshift(prevOffsets.anchor); + } + } + const placeBoxForVariableAnchors = (collisionTextBox, collisionIconBox, orientation) => { + const textBoxScale = symbolInstance.textBoxScale; + const width = (collisionTextBox.x2 - collisionTextBox.x1) * textBoxScale + 2 * collisionTextBox.padding; + const height = (collisionTextBox.y2 - collisionTextBox.y1) * textBoxScale + 2 * collisionTextBox.padding; + const variableIconBox = hasIconTextFit && !iconAllowOverlap ? collisionIconBox : null; + if (variableIconBox) + updateElevation(variableIconBox); + let placedBox = { + box: [], + offscreen: false + }; + const placementAttempts = textAllowOverlap ? anchors.length * 2 : anchors.length; + for (let i = 0; i < placementAttempts; ++i) { + const anchor = anchors[i % anchors.length]; + const allowOverlap = i >= anchors.length; + const result = this.attemptAnchorPlacement(anchor, collisionTextBox, width, height, textBoxScale, rotateWithMap, pitchWithMap, textPixelRatio, posMatrix, collisionGroup, allowOverlap, symbolInstance, symbolIndex, bucket, orientation, variableIconBox, partiallyEvaluatedTextSize, partiallyEvaluatedIconSize); + if (result) { + placedBox = result.placedGlyphBoxes; + if (placedBox && placedBox.box && placedBox.box.length) { + placeText = true; + shift = result.shift; + break; + } + } + } + return placedBox; + }; + const placeHorizontal = () => { + return placeBoxForVariableAnchors(textBox, collisionArrays.iconBox, ref_properties.WritingMode.horizontal); + }; + const placeVertical = () => { + const verticalTextBox = collisionArrays.verticalTextBox; + if (verticalTextBox) + updateElevation(verticalTextBox); + const wasPlaced = placed && placed.box && placed.box.length; + if (bucket.allowVerticalPlacement && !wasPlaced && symbolInstance.numVerticalGlyphVertices > 0 && verticalTextBox) { + return placeBoxForVariableAnchors(verticalTextBox, collisionArrays.verticalIconBox, ref_properties.WritingMode.vertical); + } + return { + box: null, + offscreen: null + }; + }; + placeTextForPlacementModes(placeHorizontal, placeVertical); + if (placed) { + placeText = placed.box; + offscreen = placed.offscreen; + } + const prevOrientation = updatePreviousOrientationIfNotPlaced(placed && placed.box); + if (!placeText && this.prevPlacement) { + const prevOffset = this.prevPlacement.variableOffsets[symbolInstance.crossTileID]; + if (prevOffset) { + this.variableOffsets[symbolInstance.crossTileID] = prevOffset; + this.markUsedJustification(bucket, prevOffset.anchor, symbolInstance, prevOrientation); + } + } + } + } + placedGlyphBoxes = placed; + placeText = placedGlyphBoxes && placedGlyphBoxes.box && placedGlyphBoxes.box.length > 0; + offscreen = placedGlyphBoxes && placedGlyphBoxes.offscreen; + if (symbolInstance.useRuntimeCollisionCircles) { + const placedSymbol = bucket.text.placedSymbolArray.get(symbolInstance.centerJustifiedTextSymbolIndex); + const fontSize = ref_properties.evaluateSizeForFeature(bucket.textSizeData, partiallyEvaluatedTextSize, placedSymbol); + const textPixelPadding = layout.get('text-padding'); + const circlePixelDiameter = symbolInstance.collisionCircleDiameter; + placedGlyphCircles = this.collisionIndex.placeCollisionCircles(textAllowOverlap, placedSymbol, bucket.lineVertexArray, bucket.glyphOffsetArray, fontSize, posMatrix, textLabelPlaneMatrix, labelToScreenMatrix, showCollisionBoxes, pitchWithMap, collisionGroup.predicate, circlePixelDiameter, textPixelPadding, this.retainedQueryData[bucket.bucketInstanceId].tileID); + placeText = textAllowOverlap || placedGlyphCircles.circles.length > 0 && !placedGlyphCircles.collisionDetected; + offscreen = offscreen && placedGlyphCircles.offscreen; + } + if (collisionArrays.iconFeatureIndex) { + iconFeatureIndex = collisionArrays.iconFeatureIndex; + } + if (collisionArrays.iconBox) { + const placeIconFeature = iconBox => { + updateElevation(iconBox); + const shiftPoint = hasIconTextFit && shift ? offsetShift(shift.x, shift.y, rotateWithMap, pitchWithMap, this.transform.angle) : new ref_properties.Point(0, 0); + const iconScale = bucket.getSymbolInstanceIconSize(partiallyEvaluatedIconSize, this.transform.zoom, symbolIndex); + return this.collisionIndex.placeCollisionBox(iconScale, iconBox, shiftPoint, iconAllowOverlap, textPixelRatio, posMatrix, collisionGroup.predicate); + }; + if (placedVerticalText && placedVerticalText.box && placedVerticalText.box.length && collisionArrays.verticalIconBox) { + placedIconBoxes = placeIconFeature(collisionArrays.verticalIconBox); + placeIcon = placedIconBoxes.box.length > 0; + } else { + placedIconBoxes = placeIconFeature(collisionArrays.iconBox); + placeIcon = placedIconBoxes.box.length > 0; + } + offscreen = offscreen && placedIconBoxes.offscreen; + } + const iconWithoutText = textOptional || symbolInstance.numHorizontalGlyphVertices === 0 && symbolInstance.numVerticalGlyphVertices === 0; + const textWithoutIcon = iconOptional || symbolInstance.numIconVertices === 0; + if (!iconWithoutText && !textWithoutIcon) { + placeIcon = placeText = placeIcon && placeText; + } else if (!textWithoutIcon) { + placeText = placeIcon && placeText; + } else if (!iconWithoutText) { + placeIcon = placeIcon && placeText; + } + if (placeText && placedGlyphBoxes && placedGlyphBoxes.box) { + if (placedVerticalText && placedVerticalText.box && verticalTextFeatureIndex) { + this.collisionIndex.insertCollisionBox(placedGlyphBoxes.box, layout.get('text-ignore-placement'), bucket.bucketInstanceId, verticalTextFeatureIndex, collisionGroup.ID); + } else { + this.collisionIndex.insertCollisionBox(placedGlyphBoxes.box, layout.get('text-ignore-placement'), bucket.bucketInstanceId, textFeatureIndex, collisionGroup.ID); + } + } + if (placeIcon && placedIconBoxes) { + this.collisionIndex.insertCollisionBox(placedIconBoxes.box, layout.get('icon-ignore-placement'), bucket.bucketInstanceId, iconFeatureIndex, collisionGroup.ID); + } + if (placedGlyphCircles) { + if (placeText) { + this.collisionIndex.insertCollisionCircles(placedGlyphCircles.circles, layout.get('text-ignore-placement'), bucket.bucketInstanceId, textFeatureIndex, collisionGroup.ID); + } + if (showCollisionBoxes) { + const id = bucket.bucketInstanceId; + let circleArray = this.collisionCircleArrays[id]; + if (circleArray === undefined) + circleArray = this.collisionCircleArrays[id] = new CollisionCircleArray(); + for (let i = 0; i < placedGlyphCircles.circles.length; i += 4) { + circleArray.circles.push(placedGlyphCircles.circles[i + 0]); + circleArray.circles.push(placedGlyphCircles.circles[i + 1]); + circleArray.circles.push(placedGlyphCircles.circles[i + 2]); + circleArray.circles.push(placedGlyphCircles.collisionDetected ? 1 : 0); + } + } + } + this.placements[symbolInstance.crossTileID] = new JointPlacement(placeText || alwaysShowText, placeIcon || alwaysShowIcon, offscreen || bucket.justReloaded); + seenCrossTileIDs[symbolInstance.crossTileID] = true; + }; + if (zOrderByViewportY) { + const symbolIndexes = bucket.getSortedSymbolIndexes(this.transform.angle); + for (let i = symbolIndexes.length - 1; i >= 0; --i) { + const symbolIndex = symbolIndexes[i]; + placeSymbol(bucket.symbolInstances.get(symbolIndex), symbolIndex, bucket.collisionArrays[symbolIndex]); + } + } else { + for (let i = bucketPart.symbolInstanceStart; i < bucketPart.symbolInstanceEnd; i++) { + placeSymbol(bucket.symbolInstances.get(i), i, bucket.collisionArrays[i]); + } + } + if (showCollisionBoxes && bucket.bucketInstanceId in this.collisionCircleArrays) { + const circleArray = this.collisionCircleArrays[bucket.bucketInstanceId]; + ref_properties.invert(circleArray.invProjMatrix, posMatrix); + circleArray.viewportMatrix = this.collisionIndex.getViewportMatrix(); + } + bucket.justReloaded = false; + } + markUsedJustification(bucket, placedAnchor, symbolInstance, orientation) { + const justifications = { + 'left': symbolInstance.leftJustifiedTextSymbolIndex, + 'center': symbolInstance.centerJustifiedTextSymbolIndex, + 'right': symbolInstance.rightJustifiedTextSymbolIndex + }; + let autoIndex; + if (orientation === ref_properties.WritingMode.vertical) { + autoIndex = symbolInstance.verticalPlacedTextSymbolIndex; + } else { + autoIndex = justifications[ref_properties.getAnchorJustification(placedAnchor)]; + } + const indexes = [ + symbolInstance.leftJustifiedTextSymbolIndex, + symbolInstance.centerJustifiedTextSymbolIndex, + symbolInstance.rightJustifiedTextSymbolIndex, + symbolInstance.verticalPlacedTextSymbolIndex + ]; + for (const index of indexes) { + if (index >= 0) { + if (autoIndex >= 0 && index !== autoIndex) { + bucket.text.placedSymbolArray.get(index).crossTileID = 0; + } else { + bucket.text.placedSymbolArray.get(index).crossTileID = symbolInstance.crossTileID; + } + } + } + } + markUsedOrientation(bucket, orientation, symbolInstance) { + const horizontal = orientation === ref_properties.WritingMode.horizontal || orientation === ref_properties.WritingMode.horizontalOnly ? orientation : 0; + const vertical = orientation === ref_properties.WritingMode.vertical ? orientation : 0; + const horizontalIndexes = [ + symbolInstance.leftJustifiedTextSymbolIndex, + symbolInstance.centerJustifiedTextSymbolIndex, + symbolInstance.rightJustifiedTextSymbolIndex + ]; + for (const index of horizontalIndexes) { + bucket.text.placedSymbolArray.get(index).placedOrientation = horizontal; + } + if (symbolInstance.verticalPlacedTextSymbolIndex) { + bucket.text.placedSymbolArray.get(symbolInstance.verticalPlacedTextSymbolIndex).placedOrientation = vertical; + } + } + commit(now) { + this.commitTime = now; + this.zoomAtLastRecencyCheck = this.transform.zoom; + const prevPlacement = this.prevPlacement; + let placementChanged = false; + this.prevZoomAdjustment = prevPlacement ? prevPlacement.zoomAdjustment(this.transform.zoom) : 0; + const increment = prevPlacement ? prevPlacement.symbolFadeChange(now) : 1; + const prevOpacities = prevPlacement ? prevPlacement.opacities : {}; + const prevOffsets = prevPlacement ? prevPlacement.variableOffsets : {}; + const prevOrientations = prevPlacement ? prevPlacement.placedOrientations : {}; + for (const crossTileID in this.placements) { + const jointPlacement = this.placements[crossTileID]; + const prevOpacity = prevOpacities[crossTileID]; + if (prevOpacity) { + this.opacities[crossTileID] = new JointOpacityState(prevOpacity, increment, jointPlacement.text, jointPlacement.icon); + placementChanged = placementChanged || jointPlacement.text !== prevOpacity.text.placed || jointPlacement.icon !== prevOpacity.icon.placed; + } else { + this.opacities[crossTileID] = new JointOpacityState(null, increment, jointPlacement.text, jointPlacement.icon, jointPlacement.skipFade); + placementChanged = placementChanged || jointPlacement.text || jointPlacement.icon; + } + } + for (const crossTileID in prevOpacities) { + const prevOpacity = prevOpacities[crossTileID]; + if (!this.opacities[crossTileID]) { + const jointOpacity = new JointOpacityState(prevOpacity, increment, false, false); + if (!jointOpacity.isHidden()) { + this.opacities[crossTileID] = jointOpacity; + placementChanged = placementChanged || prevOpacity.text.placed || prevOpacity.icon.placed; + } + } + } + for (const crossTileID in prevOffsets) { + if (!this.variableOffsets[crossTileID] && this.opacities[crossTileID] && !this.opacities[crossTileID].isHidden()) { + this.variableOffsets[crossTileID] = prevOffsets[crossTileID]; + } + } + for (const crossTileID in prevOrientations) { + if (!this.placedOrientations[crossTileID] && this.opacities[crossTileID] && !this.opacities[crossTileID].isHidden()) { + this.placedOrientations[crossTileID] = prevOrientations[crossTileID]; + } + } + if (placementChanged) { + this.lastPlacementChangeTime = now; + } else if (typeof this.lastPlacementChangeTime !== 'number') { + this.lastPlacementChangeTime = prevPlacement ? prevPlacement.lastPlacementChangeTime : now; + } + } + updateLayerOpacities(styleLayer, tiles) { + const seenCrossTileIDs = {}; + for (const tile of tiles) { + const symbolBucket = tile.getBucket(styleLayer); + if (symbolBucket && tile.latestFeatureIndex && styleLayer.id === symbolBucket.layerIds[0]) { + this.updateBucketOpacities(symbolBucket, seenCrossTileIDs, tile.collisionBoxArray); + } + } + } + updateBucketOpacities(bucket, seenCrossTileIDs, collisionBoxArray) { + if (bucket.hasTextData()) + bucket.text.opacityVertexArray.clear(); + if (bucket.hasIconData()) + bucket.icon.opacityVertexArray.clear(); + if (bucket.hasIconCollisionBoxData()) + bucket.iconCollisionBox.collisionVertexArray.clear(); + if (bucket.hasTextCollisionBoxData()) + bucket.textCollisionBox.collisionVertexArray.clear(); + const layout = bucket.layers[0].layout; + const duplicateOpacityState = new JointOpacityState(null, 0, false, false, true); + const textAllowOverlap = layout.get('text-allow-overlap'); + const iconAllowOverlap = layout.get('icon-allow-overlap'); + const variablePlacement = layout.get('text-variable-anchor'); + const rotateWithMap = layout.get('text-rotation-alignment') === 'map'; + const pitchWithMap = layout.get('text-pitch-alignment') === 'map'; + const hasIconTextFit = layout.get('icon-text-fit') !== 'none'; + const defaultOpacityState = new JointOpacityState(null, 0, textAllowOverlap && (iconAllowOverlap || !bucket.hasIconData() || layout.get('icon-optional')), iconAllowOverlap && (textAllowOverlap || !bucket.hasTextData() || layout.get('text-optional')), true); + if (!bucket.collisionArrays && collisionBoxArray && (bucket.hasIconCollisionBoxData() || bucket.hasTextCollisionBoxData())) { + bucket.deserializeCollisionBoxes(collisionBoxArray); + } + const addOpacities = (iconOrText, numVertices, opacity) => { + for (let i = 0; i < numVertices / 4; i++) { + iconOrText.opacityVertexArray.emplaceBack(opacity); + } + }; + for (let s = 0; s < bucket.symbolInstances.length; s++) { + const symbolInstance = bucket.symbolInstances.get(s); + const {numHorizontalGlyphVertices, numVerticalGlyphVertices, crossTileID} = symbolInstance; + const isDuplicate = seenCrossTileIDs[crossTileID]; + let opacityState = this.opacities[crossTileID]; + if (isDuplicate) { + opacityState = duplicateOpacityState; + } else if (!opacityState) { + opacityState = defaultOpacityState; + this.opacities[crossTileID] = opacityState; + } + seenCrossTileIDs[crossTileID] = true; + const hasText = numHorizontalGlyphVertices > 0 || numVerticalGlyphVertices > 0; + const hasIcon = symbolInstance.numIconVertices > 0; + const placedOrientation = this.placedOrientations[symbolInstance.crossTileID]; + const horizontalHidden = placedOrientation === ref_properties.WritingMode.vertical; + const verticalHidden = placedOrientation === ref_properties.WritingMode.horizontal || placedOrientation === ref_properties.WritingMode.horizontalOnly; + if (hasText) { + const packedOpacity = packOpacity(opacityState.text); + const horizontalOpacity = horizontalHidden ? PACKED_HIDDEN_OPACITY : packedOpacity; + addOpacities(bucket.text, numHorizontalGlyphVertices, horizontalOpacity); + const verticalOpacity = verticalHidden ? PACKED_HIDDEN_OPACITY : packedOpacity; + addOpacities(bucket.text, numVerticalGlyphVertices, verticalOpacity); + const symbolHidden = opacityState.text.isHidden(); + [ + symbolInstance.rightJustifiedTextSymbolIndex, + symbolInstance.centerJustifiedTextSymbolIndex, + symbolInstance.leftJustifiedTextSymbolIndex + ].forEach(index => { + if (index >= 0) { + bucket.text.placedSymbolArray.get(index).hidden = symbolHidden || horizontalHidden ? 1 : 0; + } + }); + if (symbolInstance.verticalPlacedTextSymbolIndex >= 0) { + bucket.text.placedSymbolArray.get(symbolInstance.verticalPlacedTextSymbolIndex).hidden = symbolHidden || verticalHidden ? 1 : 0; + } + const prevOffset = this.variableOffsets[symbolInstance.crossTileID]; + if (prevOffset) { + this.markUsedJustification(bucket, prevOffset.anchor, symbolInstance, placedOrientation); + } + const prevOrientation = this.placedOrientations[symbolInstance.crossTileID]; + if (prevOrientation) { + this.markUsedJustification(bucket, 'left', symbolInstance, prevOrientation); + this.markUsedOrientation(bucket, prevOrientation, symbolInstance); + } + } + if (hasIcon) { + const packedOpacity = packOpacity(opacityState.icon); + const useHorizontal = !(hasIconTextFit && symbolInstance.verticalPlacedIconSymbolIndex && horizontalHidden); + if (symbolInstance.placedIconSymbolIndex >= 0) { + const horizontalOpacity = useHorizontal ? packedOpacity : PACKED_HIDDEN_OPACITY; + addOpacities(bucket.icon, symbolInstance.numIconVertices, horizontalOpacity); + bucket.icon.placedSymbolArray.get(symbolInstance.placedIconSymbolIndex).hidden = opacityState.icon.isHidden(); + } + if (symbolInstance.verticalPlacedIconSymbolIndex >= 0) { + const verticalOpacity = !useHorizontal ? packedOpacity : PACKED_HIDDEN_OPACITY; + addOpacities(bucket.icon, symbolInstance.numVerticalIconVertices, verticalOpacity); + bucket.icon.placedSymbolArray.get(symbolInstance.verticalPlacedIconSymbolIndex).hidden = opacityState.icon.isHidden(); + } + } + if (bucket.hasIconCollisionBoxData() || bucket.hasTextCollisionBoxData()) { + const collisionArrays = bucket.collisionArrays[s]; + if (collisionArrays) { + let shift = new ref_properties.Point(0, 0); + if (collisionArrays.textBox || collisionArrays.verticalTextBox) { + let used = true; + if (variablePlacement) { + const variableOffset = this.variableOffsets[crossTileID]; + if (variableOffset) { + shift = calculateVariableLayoutShift(variableOffset.anchor, variableOffset.width, variableOffset.height, variableOffset.textOffset, variableOffset.textBoxScale); + if (rotateWithMap) { + shift._rotate(pitchWithMap ? this.transform.angle : -this.transform.angle); + } + } else { + used = false; + } + } + if (collisionArrays.textBox) { + updateCollisionVertices(bucket.textCollisionBox.collisionVertexArray, opacityState.text.placed, !used || horizontalHidden, shift.x, shift.y); + } + if (collisionArrays.verticalTextBox) { + updateCollisionVertices(bucket.textCollisionBox.collisionVertexArray, opacityState.text.placed, !used || verticalHidden, shift.x, shift.y); + } + } + const verticalIconUsed = Boolean(!verticalHidden && collisionArrays.verticalIconBox); + if (collisionArrays.iconBox) { + updateCollisionVertices(bucket.iconCollisionBox.collisionVertexArray, opacityState.icon.placed, verticalIconUsed, hasIconTextFit ? shift.x : 0, hasIconTextFit ? shift.y : 0); + } + if (collisionArrays.verticalIconBox) { + updateCollisionVertices(bucket.iconCollisionBox.collisionVertexArray, opacityState.icon.placed, !verticalIconUsed, hasIconTextFit ? shift.x : 0, hasIconTextFit ? shift.y : 0); + } + } + } + } + bucket.sortFeatures(this.transform.angle); + if (this.retainedQueryData[bucket.bucketInstanceId]) { + this.retainedQueryData[bucket.bucketInstanceId].featureSortOrder = bucket.featureSortOrder; + } + if (bucket.hasTextData() && bucket.text.opacityVertexBuffer) { + bucket.text.opacityVertexBuffer.updateData(bucket.text.opacityVertexArray); + } + if (bucket.hasIconData() && bucket.icon.opacityVertexBuffer) { + bucket.icon.opacityVertexBuffer.updateData(bucket.icon.opacityVertexArray); + } + if (bucket.hasIconCollisionBoxData() && bucket.iconCollisionBox.collisionVertexBuffer) { + bucket.iconCollisionBox.collisionVertexBuffer.updateData(bucket.iconCollisionBox.collisionVertexArray); + } + if (bucket.hasTextCollisionBoxData() && bucket.textCollisionBox.collisionVertexBuffer) { + bucket.textCollisionBox.collisionVertexBuffer.updateData(bucket.textCollisionBox.collisionVertexArray); + } + if (bucket.bucketInstanceId in this.collisionCircleArrays) { + const instance = this.collisionCircleArrays[bucket.bucketInstanceId]; + bucket.placementInvProjMatrix = instance.invProjMatrix; + bucket.placementViewportMatrix = instance.viewportMatrix; + bucket.collisionCircleArray = instance.circles; + delete this.collisionCircleArrays[bucket.bucketInstanceId]; + } + } + symbolFadeChange(now) { + return this.fadeDuration === 0 ? 1 : (now - this.commitTime) / this.fadeDuration + this.prevZoomAdjustment; + } + zoomAdjustment(zoom) { + return Math.max(0, (this.transform.zoom - zoom) / 1.5); + } + hasTransitions(now) { + return this.stale || now - this.lastPlacementChangeTime < this.fadeDuration; + } + stillRecent(now, zoom) { + const durationAdjustment = this.zoomAtLastRecencyCheck === zoom ? 1 - this.zoomAdjustment(zoom) : 1; + this.zoomAtLastRecencyCheck = zoom; + return this.commitTime + this.fadeDuration * durationAdjustment > now; + } + setStale() { + this.stale = true; + } +} +function updateCollisionVertices(collisionVertexArray, placed, notUsed, shiftX, shiftY) { + collisionVertexArray.emplaceBack(placed ? 1 : 0, notUsed ? 1 : 0, shiftX || 0, shiftY || 0); + collisionVertexArray.emplaceBack(placed ? 1 : 0, notUsed ? 1 : 0, shiftX || 0, shiftY || 0); + collisionVertexArray.emplaceBack(placed ? 1 : 0, notUsed ? 1 : 0, shiftX || 0, shiftY || 0); + collisionVertexArray.emplaceBack(placed ? 1 : 0, notUsed ? 1 : 0, shiftX || 0, shiftY || 0); +} +const shift25 = Math.pow(2, 25); +const shift24 = Math.pow(2, 24); +const shift17 = Math.pow(2, 17); +const shift16 = Math.pow(2, 16); +const shift9 = Math.pow(2, 9); +const shift8 = Math.pow(2, 8); +const shift1 = Math.pow(2, 1); +function packOpacity(opacityState) { + if (opacityState.opacity === 0 && !opacityState.placed) { + return 0; + } else if (opacityState.opacity === 1 && opacityState.placed) { + return 4294967295; + } + const targetBit = opacityState.placed ? 1 : 0; + const opacityBits = Math.floor(opacityState.opacity * 127); + return opacityBits * shift25 + targetBit * shift24 + opacityBits * shift17 + targetBit * shift16 + opacityBits * shift9 + targetBit * shift8 + opacityBits * shift1 + targetBit; +} +const PACKED_HIDDEN_OPACITY = 0; + +class LayerPlacement { + constructor(styleLayer) { + this._sortAcrossTiles = styleLayer.layout.get('symbol-z-order') !== 'viewport-y' && styleLayer.layout.get('symbol-sort-key').constantOr(1) !== undefined; + this._currentTileIndex = 0; + this._currentPartIndex = 0; + this._seenCrossTileIDs = {}; + this._bucketParts = []; + } + continuePlacement(tiles, placement, showCollisionBoxes, styleLayer, shouldPausePlacement) { + const bucketParts = this._bucketParts; + while (this._currentTileIndex < tiles.length) { + const tile = tiles[this._currentTileIndex]; + placement.getBucketParts(bucketParts, styleLayer, tile, this._sortAcrossTiles); + this._currentTileIndex++; + if (shouldPausePlacement()) { + return true; + } + } + if (this._sortAcrossTiles) { + this._sortAcrossTiles = false; + bucketParts.sort((a, b) => a.sortKey - b.sortKey); + } + while (this._currentPartIndex < bucketParts.length) { + const bucketPart = bucketParts[this._currentPartIndex]; + placement.placeLayerBucketPart(bucketPart, this._seenCrossTileIDs, showCollisionBoxes); + this._currentPartIndex++; + if (shouldPausePlacement()) { + return true; + } + } + return false; + } +} +class PauseablePlacement { + constructor(transform, order, forceFullPlacement, showCollisionBoxes, fadeDuration, crossSourceCollisions, prevPlacement) { + this.placement = new Placement(transform, fadeDuration, crossSourceCollisions, prevPlacement); + this._currentPlacementIndex = order.length - 1; + this._forceFullPlacement = forceFullPlacement; + this._showCollisionBoxes = showCollisionBoxes; + this._done = false; + } + isDone() { + return this._done; + } + continuePlacement(order, layers, layerTiles) { + const startTime = ref_properties.browser.now(); + const shouldPausePlacement = () => { + const elapsedTime = ref_properties.browser.now() - startTime; + return this._forceFullPlacement ? false : elapsedTime > 2; + }; + while (this._currentPlacementIndex >= 0) { + const layerId = order[this._currentPlacementIndex]; + const layer = layers[layerId]; + const placementZoom = this.placement.collisionIndex.transform.zoom; + if (layer.type === 'symbol' && (!layer.minzoom || layer.minzoom <= placementZoom) && (!layer.maxzoom || layer.maxzoom > placementZoom)) { + if (!this._inProgressLayer) { + this._inProgressLayer = new LayerPlacement(layer); + } + const pausePlacement = this._inProgressLayer.continuePlacement(layerTiles[layer.source], this.placement, this._showCollisionBoxes, layer, shouldPausePlacement); + if (pausePlacement) { + return; + } + delete this._inProgressLayer; + } + this._currentPlacementIndex--; + } + this._done = true; + } + commit(now) { + this.placement.commit(now); + return this.placement; + } +} + +const roundingFactor = 512 / ref_properties.EXTENT / 2; +class TileLayerIndex { + constructor(tileID, symbolInstances, bucketInstanceId) { + this.tileID = tileID; + this.indexedSymbolInstances = {}; + this.bucketInstanceId = bucketInstanceId; + for (let i = 0; i < symbolInstances.length; i++) { + const symbolInstance = symbolInstances.get(i); + const key = symbolInstance.key; + if (!this.indexedSymbolInstances[key]) { + this.indexedSymbolInstances[key] = []; + } + this.indexedSymbolInstances[key].push({ + crossTileID: symbolInstance.crossTileID, + coord: this.getScaledCoordinates(symbolInstance, tileID) + }); + } + } + getScaledCoordinates(symbolInstance, childTileID) { + const zDifference = childTileID.canonical.z - this.tileID.canonical.z; + const scale = roundingFactor / Math.pow(2, zDifference); + return { + x: Math.floor((childTileID.canonical.x * ref_properties.EXTENT + symbolInstance.anchorX) * scale), + y: Math.floor((childTileID.canonical.y * ref_properties.EXTENT + symbolInstance.anchorY) * scale) + }; + } + findMatches(symbolInstances, newTileID, zoomCrossTileIDs) { + const tolerance = this.tileID.canonical.z < newTileID.canonical.z ? 1 : Math.pow(2, this.tileID.canonical.z - newTileID.canonical.z); + for (let i = 0; i < symbolInstances.length; i++) { + const symbolInstance = symbolInstances.get(i); + if (symbolInstance.crossTileID) { + continue; + } + const indexedInstances = this.indexedSymbolInstances[symbolInstance.key]; + if (!indexedInstances) { + continue; + } + const scaledSymbolCoord = this.getScaledCoordinates(symbolInstance, newTileID); + for (const thisTileSymbol of indexedInstances) { + if (Math.abs(thisTileSymbol.coord.x - scaledSymbolCoord.x) <= tolerance && Math.abs(thisTileSymbol.coord.y - scaledSymbolCoord.y) <= tolerance && !zoomCrossTileIDs[thisTileSymbol.crossTileID]) { + zoomCrossTileIDs[thisTileSymbol.crossTileID] = true; + symbolInstance.crossTileID = thisTileSymbol.crossTileID; + break; + } + } + } + } +} +class CrossTileIDs { + constructor() { + this.maxCrossTileID = 0; + } + generate() { + return ++this.maxCrossTileID; + } +} +class CrossTileSymbolLayerIndex { + constructor() { + this.indexes = {}; + this.usedCrossTileIDs = {}; + this.lng = 0; + } + handleWrapJump(lng) { + const wrapDelta = Math.round((lng - this.lng) / 360); + if (wrapDelta !== 0) { + for (const zoom in this.indexes) { + const zoomIndexes = this.indexes[zoom]; + const newZoomIndex = {}; + for (const key in zoomIndexes) { + const index = zoomIndexes[key]; + index.tileID = index.tileID.unwrapTo(index.tileID.wrap + wrapDelta); + newZoomIndex[index.tileID.key] = index; + } + this.indexes[zoom] = newZoomIndex; + } + } + this.lng = lng; + } + addBucket(tileID, bucket, crossTileIDs) { + if (this.indexes[tileID.overscaledZ] && this.indexes[tileID.overscaledZ][tileID.key]) { + if (this.indexes[tileID.overscaledZ][tileID.key].bucketInstanceId === bucket.bucketInstanceId) { + return false; + } else { + this.removeBucketCrossTileIDs(tileID.overscaledZ, this.indexes[tileID.overscaledZ][tileID.key]); + } + } + for (let i = 0; i < bucket.symbolInstances.length; i++) { + const symbolInstance = bucket.symbolInstances.get(i); + symbolInstance.crossTileID = 0; + } + if (!this.usedCrossTileIDs[tileID.overscaledZ]) { + this.usedCrossTileIDs[tileID.overscaledZ] = {}; + } + const zoomCrossTileIDs = this.usedCrossTileIDs[tileID.overscaledZ]; + for (const zoom in this.indexes) { + const zoomIndexes = this.indexes[zoom]; + if (Number(zoom) > tileID.overscaledZ) { + for (const id in zoomIndexes) { + const childIndex = zoomIndexes[id]; + if (childIndex.tileID.isChildOf(tileID)) { + childIndex.findMatches(bucket.symbolInstances, tileID, zoomCrossTileIDs); + } + } + } else { + const parentCoord = tileID.scaledTo(Number(zoom)); + const parentIndex = zoomIndexes[parentCoord.key]; + if (parentIndex) { + parentIndex.findMatches(bucket.symbolInstances, tileID, zoomCrossTileIDs); + } + } + } + for (let i = 0; i < bucket.symbolInstances.length; i++) { + const symbolInstance = bucket.symbolInstances.get(i); + if (!symbolInstance.crossTileID) { + symbolInstance.crossTileID = crossTileIDs.generate(); + zoomCrossTileIDs[symbolInstance.crossTileID] = true; + } + } + if (this.indexes[tileID.overscaledZ] === undefined) { + this.indexes[tileID.overscaledZ] = {}; + } + this.indexes[tileID.overscaledZ][tileID.key] = new TileLayerIndex(tileID, bucket.symbolInstances, bucket.bucketInstanceId); + return true; + } + removeBucketCrossTileIDs(zoom, removedBucket) { + for (const key in removedBucket.indexedSymbolInstances) { + for (const symbolInstance of removedBucket.indexedSymbolInstances[key]) { + delete this.usedCrossTileIDs[zoom][symbolInstance.crossTileID]; + } + } + } + removeStaleBuckets(currentIDs) { + let tilesChanged = false; + for (const z in this.indexes) { + const zoomIndexes = this.indexes[z]; + for (const tileKey in zoomIndexes) { + if (!currentIDs[zoomIndexes[tileKey].bucketInstanceId]) { + this.removeBucketCrossTileIDs(z, zoomIndexes[tileKey]); + delete zoomIndexes[tileKey]; + tilesChanged = true; + } + } + } + return tilesChanged; + } +} +class CrossTileSymbolIndex { + constructor() { + this.layerIndexes = {}; + this.crossTileIDs = new CrossTileIDs(); + this.maxBucketInstanceId = 0; + this.bucketsInCurrentPlacement = {}; + } + addLayer(styleLayer, tiles, lng) { + let layerIndex = this.layerIndexes[styleLayer.id]; + if (layerIndex === undefined) { + layerIndex = this.layerIndexes[styleLayer.id] = new CrossTileSymbolLayerIndex(); + } + let symbolBucketsChanged = false; + const currentBucketIDs = {}; + layerIndex.handleWrapJump(lng); + for (const tile of tiles) { + const symbolBucket = tile.getBucket(styleLayer); + if (!symbolBucket || styleLayer.id !== symbolBucket.layerIds[0]) + continue; + if (!symbolBucket.bucketInstanceId) { + symbolBucket.bucketInstanceId = ++this.maxBucketInstanceId; + } + if (layerIndex.addBucket(tile.tileID, symbolBucket, this.crossTileIDs)) { + symbolBucketsChanged = true; + } + currentBucketIDs[symbolBucket.bucketInstanceId] = true; + } + if (layerIndex.removeStaleBuckets(currentBucketIDs)) { + symbolBucketsChanged = true; + } + return symbolBucketsChanged; + } + pruneUnusedLayers(usedLayers) { + const usedLayerMap = {}; + usedLayers.forEach(usedLayer => { + usedLayerMap[usedLayer] = true; + }); + for (const layerId in this.layerIndexes) { + if (!usedLayerMap[layerId]) { + delete this.layerIndexes[layerId]; + } + } + } +} + +const emitValidationErrors = (evented, errors) => ref_properties.emitValidationErrors(evented, errors && errors.filter(error => error.identifier !== 'source.canvas')); +const supportedDiffOperations = ref_properties.pick(operations, [ + 'addLayer', + 'removeLayer', + 'setPaintProperty', + 'setLayoutProperty', + 'setFilter', + 'addSource', + 'removeSource', + 'setLayerZoomRange', + 'setLight', + 'setTransition', + 'setGeoJSONSourceData', + 'setTerrain' +]); +const ignoredDiffOperations = ref_properties.pick(operations, [ + 'setCenter', + 'setZoom', + 'setBearing', + 'setPitch' +]); +const empty = emptyStyle(); +const drapedLayers = { + 'fill': true, + 'line': true, + 'background': true, + 'hillshade': true, + 'raster': true +}; +class Style extends ref_properties.Evented { + constructor(map, options = {}) { + super(); + this.map = map; + this.dispatcher = new Dispatcher(getGlobalWorkerPool(), this); + this.imageManager = new ImageManager(); + this.imageManager.setEventedParent(this); + this.glyphManager = new ref_properties.GlyphManager(map._requestManager, options.localFontFamily ? ref_properties.LocalGlyphMode.all : options.localIdeographFontFamily ? ref_properties.LocalGlyphMode.ideographs : ref_properties.LocalGlyphMode.none, options.localFontFamily || options.localIdeographFontFamily); + this.lineAtlas = new LineAtlas(256, 512); + this.crossTileSymbolIndex = new CrossTileSymbolIndex(); + this._layers = {}; + this._num3DLayers = 0; + this._numSymbolLayers = 0; + this._numCircleLayers = 0; + this._serializedLayers = {}; + this._sourceCaches = {}; + this._otherSourceCaches = {}; + this._symbolSourceCaches = {}; + this.zoomHistory = new ref_properties.ZoomHistory(); + this._loaded = false; + this._availableImages = []; + this._order = []; + this._drapedFirstOrder = []; + this._resetUpdates(); + this.dispatcher.broadcast('setReferrer', ref_properties.getReferrer()); + const self = this; + this._rtlTextPluginCallback = Style.registerForPluginStateChange(event => { + const state = { + pluginStatus: event.pluginStatus, + pluginURL: event.pluginURL + }; + self.dispatcher.broadcast('syncRTLPluginState', state, (err, results) => { + ref_properties.triggerPluginCompletionEvent(err); + if (results) { + const allComplete = results.every(elem => elem); + if (allComplete) { + for (const id in self._sourceCaches) { + const sourceCache = self._sourceCaches[id]; + const sourceCacheType = sourceCache.getSource().type; + if (sourceCacheType === 'vector' || sourceCacheType === 'geojson') { + sourceCache.reload(); + } + } + } + } + }); + }); + this.on('data', event => { + if (event.dataType !== 'source' || event.sourceDataType !== 'metadata') { + return; + } + const source = this.getSource(event.sourceId); + if (!source || !source.vectorLayerIds) { + return; + } + for (const layerId in this._layers) { + const layer = this._layers[layerId]; + if (layer.source === source.id) { + this._validateLayer(layer); + } + } + }); + } + loadURL(url, options = {}) { + this.fire(new ref_properties.Event('dataloading', { dataType: 'style' })); + const validate = typeof options.validate === 'boolean' ? options.validate : !ref_properties.isMapboxURL(url); + url = this.map._requestManager.normalizeStyleURL(url, options.accessToken); + const request = this.map._requestManager.transformRequest(url, ref_properties.ResourceType.Style); + this._request = ref_properties.getJSON(request, (error, json) => { + this._request = null; + if (error) { + this.fire(new ref_properties.ErrorEvent(error)); + } else if (json) { + this._load(json, validate); + } + }); + } + loadJSON(json, options = {}) { + this.fire(new ref_properties.Event('dataloading', { dataType: 'style' })); + this._request = ref_properties.browser.frame(() => { + this._request = null; + this._load(json, options.validate !== false); + }); + } + loadEmpty() { + this.fire(new ref_properties.Event('dataloading', { dataType: 'style' })); + this._load(empty, false); + } + _updateLayerCount(layer, add) { + const count = add ? 1 : -1; + if (layer.is3D()) { + this._num3DLayers += count; + } + if (layer.type === 'circle') { + this._numCircleLayers += count; + } + if (layer.type === 'symbol') { + this._numSymbolLayers += count; + } + } + _load(json, validate) { + if (validate && emitValidationErrors(this, ref_properties.validateStyle(json))) { + return; + } + this._loaded = true; + this.stylesheet = json; + for (const id in json.sources) { + this.addSource(id, json.sources[id], { validate: false }); + } + this._changed = false; + if (json.sprite) { + this._loadSprite(json.sprite); + } else { + this.imageManager.setLoaded(true); + this.dispatcher.broadcast('spriteLoaded', true); + } + this.glyphManager.setURL(json.glyphs); + const layers = derefLayers(this.stylesheet.layers); + this._order = layers.map(layer => layer.id); + this._layers = {}; + this._serializedLayers = {}; + for (let layer of layers) { + layer = ref_properties.createStyleLayer(layer); + layer.setEventedParent(this, { layer: { id: layer.id } }); + this._layers[layer.id] = layer; + this._serializedLayers[layer.id] = layer.serialize(); + this._updateLayerCount(layer, true); + } + this.dispatcher.broadcast('setLayers', this._serializeLayers(this._order)); + this.light = new Light(this.stylesheet.light); + if (this.stylesheet.terrain) { + this._createTerrain(this.stylesheet.terrain); + } + this._updateDrapeFirstLayers(); + this.fire(new ref_properties.Event('data', { dataType: 'style' })); + this.fire(new ref_properties.Event('style.load')); + } + _loadSprite(url) { + this._spriteRequest = loadSprite(url, this.map._requestManager, (err, images) => { + this._spriteRequest = null; + if (err) { + this.fire(new ref_properties.ErrorEvent(err)); + } else if (images) { + for (const id in images) { + this.imageManager.addImage(id, images[id]); + } + } + this.imageManager.setLoaded(true); + this._availableImages = this.imageManager.listImages(); + this.dispatcher.broadcast('setImages', this._availableImages); + this.dispatcher.broadcast('spriteLoaded', true); + this.fire(new ref_properties.Event('data', { dataType: 'style' })); + }); + } + _validateLayer(layer) { + const source = this.getSource(layer.source); + if (!source) { + return; + } + const sourceLayer = layer.sourceLayer; + if (!sourceLayer) { + return; + } + if (source.type === 'geojson' || source.vectorLayerIds && source.vectorLayerIds.indexOf(sourceLayer) === -1) { + this.fire(new ref_properties.ErrorEvent(new Error(`Source layer "${ sourceLayer }" ` + `does not exist on source "${ source.id }" ` + `as specified by style layer "${ layer.id }"`))); + } + } + loaded() { + if (!this._loaded) + return false; + if (Object.keys(this._updatedSources).length) + return false; + for (const id in this._sourceCaches) + if (!this._sourceCaches[id].loaded()) + return false; + if (!this.imageManager.isLoaded()) + return false; + return true; + } + _serializeLayers(ids) { + const serializedLayers = []; + for (const id of ids) { + const layer = this._layers[id]; + if (layer.type !== 'custom') { + serializedLayers.push(layer.serialize()); + } + } + return serializedLayers; + } + hasTransitions() { + if (this.light && this.light.hasTransition()) { + return true; + } + for (const id in this._sourceCaches) { + if (this._sourceCaches[id].hasTransition()) { + return true; + } + } + for (const id in this._layers) { + if (this._layers[id].hasTransition()) { + return true; + } + } + return false; + } + get order() { + if (this.map._optimizeForTerrain && this.terrain) { + return this._drapedFirstOrder; + } + return this._order; + } + isLayerDraped(layer) { + if (!this.terrain) + return false; + return drapedLayers[layer.type]; + } + _checkLoaded() { + if (!this._loaded) { + throw new Error('Style is not done loading'); + } + } + update(parameters) { + if (!this._loaded) { + return; + } + const changed = this._changed; + if (this._changed) { + const updatedIds = Object.keys(this._updatedLayers); + const removedIds = Object.keys(this._removedLayers); + if (updatedIds.length || removedIds.length) { + this._updateWorkerLayers(updatedIds, removedIds); + } + for (const id in this._updatedSources) { + const action = this._updatedSources[id]; + if (action === 'reload') { + this._reloadSource(id); + } else if (action === 'clear') { + this._clearSource(id); + } + } + this._updateTilesForChangedImages(); + for (const id in this._updatedPaintProps) { + this._layers[id].updateTransitions(parameters); + } + this.light.updateTransitions(parameters); + this._resetUpdates(); + } + const sourcesUsedBefore = {}; + for (const sourceId in this._sourceCaches) { + const sourceCache = this._sourceCaches[sourceId]; + sourcesUsedBefore[sourceId] = sourceCache.used; + sourceCache.used = false; + } + for (const layerId of this._order) { + const layer = this._layers[layerId]; + layer.recalculate(parameters, this._availableImages); + if (!layer.isHidden(parameters.zoom)) { + const sourceCache = this._getLayerSourceCache(layer); + if (sourceCache) + sourceCache.used = true; + } + const painter = this.map.painter; + if (painter) { + const programIds = layer.getProgramIds(); + if (!programIds) + continue; + const programConfiguration = layer.getProgramConfiguration(parameters.zoom); + for (const programId of programIds) { + painter.useProgram(programId, programConfiguration); + } + } + } + for (const sourceId in sourcesUsedBefore) { + const sourceCache = this._sourceCaches[sourceId]; + if (sourcesUsedBefore[sourceId] !== sourceCache.used) { + sourceCache.getSource().fire(new ref_properties.Event('data', { + sourceDataType: 'visibility', + dataType: 'source', + sourceId: sourceCache.getSource().id + })); + } + } + this.light.recalculate(parameters); + if (this.terrain) { + this.terrain.recalculate(parameters); + } + this.z = parameters.zoom; + if (changed) { + this.fire(new ref_properties.Event('data', { dataType: 'style' })); + } + } + _updateTilesForChangedImages() { + const changedImages = Object.keys(this._changedImages); + if (changedImages.length) { + for (const name in this._sourceCaches) { + this._sourceCaches[name].reloadTilesForDependencies([ + 'icons', + 'patterns' + ], changedImages); + } + this._changedImages = {}; + } + } + _updateWorkerLayers(updatedIds, removedIds) { + this.dispatcher.broadcast('updateLayers', { + layers: this._serializeLayers(updatedIds), + removedIds + }); + } + _resetUpdates() { + this._changed = false; + this._updatedLayers = {}; + this._removedLayers = {}; + this._updatedSources = {}; + this._updatedPaintProps = {}; + this._changedImages = {}; + } + setState(nextState) { + this._checkLoaded(); + if (emitValidationErrors(this, ref_properties.validateStyle(nextState))) + return false; + nextState = ref_properties.clone$1(nextState); + nextState.layers = derefLayers(nextState.layers); + const changes = diffStyles(this.serialize(), nextState).filter(op => !(op.command in ignoredDiffOperations)); + if (changes.length === 0) { + return false; + } + const unimplementedOps = changes.filter(op => !(op.command in supportedDiffOperations)); + if (unimplementedOps.length > 0) { + throw new Error(`Unimplemented: ${ unimplementedOps.map(op => op.command).join(', ') }.`); + } + changes.forEach(op => { + if (op.command === 'setTransition') { + return; + } + this[op.command].apply(this, op.args); + }); + this.stylesheet = nextState; + return true; + } + addImage(id, image) { + if (this.getImage(id)) { + return this.fire(new ref_properties.ErrorEvent(new Error('An image with this name already exists.'))); + } + this.imageManager.addImage(id, image); + this._afterImageUpdated(id); + } + updateImage(id, image) { + this.imageManager.updateImage(id, image); + } + getImage(id) { + return this.imageManager.getImage(id); + } + removeImage(id) { + if (!this.getImage(id)) { + return this.fire(new ref_properties.ErrorEvent(new Error('No image with this name exists.'))); + } + this.imageManager.removeImage(id); + this._afterImageUpdated(id); + } + _afterImageUpdated(id) { + this._availableImages = this.imageManager.listImages(); + this._changedImages[id] = true; + this._changed = true; + this.dispatcher.broadcast('setImages', this._availableImages); + this.fire(new ref_properties.Event('data', { dataType: 'style' })); + } + listImages() { + this._checkLoaded(); + return this.imageManager.listImages(); + } + addSource(id, source, options = {}) { + this._checkLoaded(); + if (this.getSource(id) !== undefined) { + throw new Error('There is already a source with this ID'); + } + if (!source.type) { + throw new Error(`The type property must be defined, but only the following properties were given: ${ Object.keys(source).join(', ') }.`); + } + const builtIns = [ + 'vector', + 'raster', + 'geojson', + 'video', + 'image' + ]; + const shouldValidate = builtIns.indexOf(source.type) >= 0; + if (shouldValidate && this._validate(ref_properties.validateStyle.source, `sources.${ id }`, source, null, options)) + return; + if (this.map && this.map._collectResourceTiming) + source.collectResourceTiming = true; + const sourceInstance = create(id, source, this.dispatcher, this); + sourceInstance.setEventedParent(this, () => ({ + isSourceLoaded: this.loaded(), + source: sourceInstance.serialize(), + sourceId: id + })); + const addSourceCache = onlySymbols => { + const sourceCacheId = (onlySymbols ? 'symbol:' : 'other:') + id; + const sourceCache = this._sourceCaches[sourceCacheId] = new ref_properties.SourceCache(sourceCacheId, sourceInstance, onlySymbols); + (onlySymbols ? this._symbolSourceCaches : this._otherSourceCaches)[id] = sourceCache; + sourceCache.style = this; + sourceCache.onAdd(this.map); + }; + addSourceCache(false); + if (source.type === 'vector' || source.type === 'geojson') { + addSourceCache(true); + } + if (sourceInstance.onAdd) + sourceInstance.onAdd(this.map); + this._changed = true; + } + removeSource(id) { + this._checkLoaded(); + const source = this.getSource(id); + if (source === undefined) { + throw new Error('There is no source with this ID'); + } + for (const layerId in this._layers) { + if (this._layers[layerId].source === id) { + return this.fire(new ref_properties.ErrorEvent(new Error(`Source "${ id }" cannot be removed while layer "${ layerId }" is using it.`))); + } + } + if (this.terrain && this.terrain.get().source === id) { + return this.fire(new ref_properties.ErrorEvent(new Error(`Source "${ id }" cannot be removed while terrain is using it.`))); + } + const sourceCaches = this._getSourceCaches(id); + for (const sourceCache of sourceCaches) { + delete this._sourceCaches[sourceCache.id]; + delete this._updatedSources[sourceCache.id]; + sourceCache.fire(new ref_properties.Event('data', { + sourceDataType: 'metadata', + dataType: 'source', + sourceId: sourceCache.getSource().id + })); + sourceCache.setEventedParent(null); + sourceCache.clearTiles(); + } + delete this._otherSourceCaches[id]; + delete this._symbolSourceCaches[id]; + source.setEventedParent(null); + if (source.onRemove) { + source.onRemove(this.map); + } + this._changed = true; + } + setGeoJSONSourceData(id, data) { + this._checkLoaded(); + const geojsonSource = this.getSource(id); + geojsonSource.setData(data); + this._changed = true; + } + getSource(id) { + const sourceCache = this._getSourceCache(id); + return sourceCache && sourceCache.getSource(); + } + addLayer(layerObject, before, options = {}) { + this._checkLoaded(); + const id = layerObject.id; + if (this.getLayer(id)) { + this.fire(new ref_properties.ErrorEvent(new Error(`Layer with id "${ id }" already exists on this map`))); + return; + } + let layer; + if (layerObject.type === 'custom') { + if (emitValidationErrors(this, ref_properties.validateCustomStyleLayer(layerObject))) + return; + layer = ref_properties.createStyleLayer(layerObject); + } else { + if (typeof layerObject.source === 'object') { + this.addSource(id, layerObject.source); + layerObject = ref_properties.clone$1(layerObject); + layerObject = ref_properties.extend(layerObject, { source: id }); + } + if (this._validate(ref_properties.validateStyle.layer, `layers.${ id }`, layerObject, { arrayIndex: -1 }, options)) + return; + layer = ref_properties.createStyleLayer(layerObject); + this._validateLayer(layer); + layer.setEventedParent(this, { layer: { id } }); + this._serializedLayers[layer.id] = layer.serialize(); + this._updateLayerCount(layer, true); + } + const index = before ? this._order.indexOf(before) : this._order.length; + if (before && index === -1) { + this.fire(new ref_properties.ErrorEvent(new Error(`Layer with id "${ before }" does not exist on this map.`))); + return; + } + this._order.splice(index, 0, id); + this._layerOrderChanged = true; + this._layers[id] = layer; + const sourceCache = this._getLayerSourceCache(layer); + if (this._removedLayers[id] && layer.source && sourceCache && layer.type !== 'custom') { + const removed = this._removedLayers[id]; + delete this._removedLayers[id]; + if (removed.type !== layer.type) { + this._updatedSources[layer.source] = 'clear'; + } else { + this._updatedSources[layer.source] = 'reload'; + sourceCache.pause(); + } + } + this._updateLayer(layer); + if (layer.onAdd) { + layer.onAdd(this.map); + } + this._updateDrapeFirstLayers(); + } + moveLayer(id, before) { + this._checkLoaded(); + this._changed = true; + const layer = this._layers[id]; + if (!layer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The layer '${ id }' does not exist in the map's style and cannot be moved.`))); + return; + } + if (id === before) { + return; + } + const index = this._order.indexOf(id); + this._order.splice(index, 1); + const newIndex = before ? this._order.indexOf(before) : this._order.length; + if (before && newIndex === -1) { + this.fire(new ref_properties.ErrorEvent(new Error(`Layer with id "${ before }" does not exist on this map.`))); + return; + } + this._order.splice(newIndex, 0, id); + this._layerOrderChanged = true; + this._updateDrapeFirstLayers(); + } + removeLayer(id) { + this._checkLoaded(); + const layer = this._layers[id]; + if (!layer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The layer '${ id }' does not exist in the map's style and cannot be removed.`))); + return; + } + layer.setEventedParent(null); + this._updateLayerCount(layer, false); + const index = this._order.indexOf(id); + this._order.splice(index, 1); + this._layerOrderChanged = true; + this._changed = true; + this._removedLayers[id] = layer; + delete this._layers[id]; + delete this._serializedLayers[id]; + delete this._updatedLayers[id]; + delete this._updatedPaintProps[id]; + if (layer.onRemove) { + layer.onRemove(this.map); + } + this._updateDrapeFirstLayers(); + } + getLayer(id) { + return this._layers[id]; + } + hasLayer(id) { + return id in this._layers; + } + hasLayerType(type) { + for (const layerId in this._layers) { + const layer = this._layers[layerId]; + if (layer.type === type) { + return true; + } + } + return false; + } + setLayerZoomRange(layerId, minzoom, maxzoom) { + this._checkLoaded(); + const layer = this.getLayer(layerId); + if (!layer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The layer '${ layerId }' does not exist in the map's style and cannot have zoom extent.`))); + return; + } + if (layer.minzoom === minzoom && layer.maxzoom === maxzoom) + return; + if (minzoom != null) { + layer.minzoom = minzoom; + } + if (maxzoom != null) { + layer.maxzoom = maxzoom; + } + this._updateLayer(layer); + } + setFilter(layerId, filter, options = {}) { + this._checkLoaded(); + const layer = this.getLayer(layerId); + if (!layer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The layer '${ layerId }' does not exist in the map's style and cannot be filtered.`))); + return; + } + if (ref_properties.deepEqual(layer.filter, filter)) { + return; + } + if (filter === null || filter === undefined) { + layer.filter = undefined; + this._updateLayer(layer); + return; + } + if (this._validate(ref_properties.validateStyle.filter, `layers.${ layer.id }.filter`, filter, null, options)) { + return; + } + layer.filter = ref_properties.clone$1(filter); + this._updateLayer(layer); + } + getFilter(layer) { + return ref_properties.clone$1(this.getLayer(layer).filter); + } + setLayoutProperty(layerId, name, value, options = {}) { + this._checkLoaded(); + const layer = this.getLayer(layerId); + if (!layer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The layer '${ layerId }' does not exist in the map's style and cannot be styled.`))); + return; + } + if (ref_properties.deepEqual(layer.getLayoutProperty(name), value)) + return; + layer.setLayoutProperty(name, value, options); + this._updateLayer(layer); + } + getLayoutProperty(layerId, name) { + const layer = this.getLayer(layerId); + if (!layer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The layer '${ layerId }' does not exist in the map's style.`))); + return; + } + return layer.getLayoutProperty(name); + } + setPaintProperty(layerId, name, value, options = {}) { + this._checkLoaded(); + const layer = this.getLayer(layerId); + if (!layer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The layer '${ layerId }' does not exist in the map's style and cannot be styled.`))); + return; + } + if (ref_properties.deepEqual(layer.getPaintProperty(name), value)) + return; + const requiresRelayout = layer.setPaintProperty(name, value, options); + if (requiresRelayout) { + this._updateLayer(layer); + } + this._changed = true; + this._updatedPaintProps[layerId] = true; + } + getPaintProperty(layer, name) { + return this.getLayer(layer).getPaintProperty(name); + } + setFeatureState(target, state) { + this._checkLoaded(); + const sourceId = target.source; + const sourceLayer = target.sourceLayer; + const source = this.getSource(sourceId); + if (source === undefined) { + this.fire(new ref_properties.ErrorEvent(new Error(`The source '${ sourceId }' does not exist in the map's style.`))); + return; + } + const sourceType = source.type; + if (sourceType === 'geojson' && sourceLayer) { + this.fire(new ref_properties.ErrorEvent(new Error(`GeoJSON sources cannot have a sourceLayer parameter.`))); + return; + } + if (sourceType === 'vector' && !sourceLayer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The sourceLayer parameter must be provided for vector source types.`))); + return; + } + if (target.id === undefined) { + this.fire(new ref_properties.ErrorEvent(new Error(`The feature id parameter must be provided.`))); + } + const sourceCaches = this._getSourceCaches(sourceId); + for (const sourceCache of sourceCaches) { + sourceCache.setFeatureState(sourceLayer, target.id, state); + } + } + removeFeatureState(target, key) { + this._checkLoaded(); + const sourceId = target.source; + const source = this.getSource(sourceId); + if (source === undefined) { + this.fire(new ref_properties.ErrorEvent(new Error(`The source '${ sourceId }' does not exist in the map's style.`))); + return; + } + const sourceType = source.type; + const sourceLayer = sourceType === 'vector' ? target.sourceLayer : undefined; + if (sourceType === 'vector' && !sourceLayer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The sourceLayer parameter must be provided for vector source types.`))); + return; + } + if (key && (typeof target.id !== 'string' && typeof target.id !== 'number')) { + this.fire(new ref_properties.ErrorEvent(new Error(`A feature id is required to remove its specific state property.`))); + return; + } + const sourceCaches = this._getSourceCaches(sourceId); + for (const sourceCache of sourceCaches) { + sourceCache.removeFeatureState(sourceLayer, target.id, key); + } + } + getFeatureState(target) { + this._checkLoaded(); + const sourceId = target.source; + const sourceLayer = target.sourceLayer; + const source = this.getSource(sourceId); + if (source === undefined) { + this.fire(new ref_properties.ErrorEvent(new Error(`The source '${ sourceId }' does not exist in the map's style.`))); + return; + } + const sourceType = source.type; + if (sourceType === 'vector' && !sourceLayer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The sourceLayer parameter must be provided for vector source types.`))); + return; + } + if (target.id === undefined) { + this.fire(new ref_properties.ErrorEvent(new Error(`The feature id parameter must be provided.`))); + } + const sourceCaches = this._getSourceCaches(sourceId); + return sourceCaches[0].getFeatureState(sourceLayer, target.id); + } + getTransition() { + return ref_properties.extend({ + duration: 300, + delay: 0 + }, this.stylesheet && this.stylesheet.transition); + } + serialize() { + const sources = {}; + for (const cacheId in this._sourceCaches) { + const source = this._sourceCaches[cacheId].getSource(); + if (!sources[source.id]) { + sources[source.id] = source.serialize(); + } + } + return ref_properties.filterObject({ + version: this.stylesheet.version, + name: this.stylesheet.name, + metadata: this.stylesheet.metadata, + light: this.stylesheet.light, + terrain: this.stylesheet.terrain, + center: this.stylesheet.center, + zoom: this.stylesheet.zoom, + bearing: this.stylesheet.bearing, + pitch: this.stylesheet.pitch, + sprite: this.stylesheet.sprite, + glyphs: this.stylesheet.glyphs, + transition: this.stylesheet.transition, + sources, + layers: this._serializeLayers(this._order) + }, value => { + return value !== undefined; + }); + } + _updateLayer(layer) { + this._updatedLayers[layer.id] = true; + const sourceCache = this._getLayerSourceCache(layer); + if (layer.source && !this._updatedSources[layer.source] && sourceCache && sourceCache.getSource().type !== 'raster') { + this._updatedSources[layer.source] = 'reload'; + sourceCache.pause(); + } + this._changed = true; + } + _flattenAndSortRenderedFeatures(sourceResults) { + const isLayer3D = layerId => this._layers[layerId].type === 'fill-extrusion'; + const layerIndex = {}; + const features3D = []; + for (let l = this._order.length - 1; l >= 0; l--) { + const layerId = this._order[l]; + if (isLayer3D(layerId)) { + layerIndex[layerId] = l; + for (const sourceResult of sourceResults) { + const layerFeatures = sourceResult[layerId]; + if (layerFeatures) { + for (const featureWrapper of layerFeatures) { + features3D.push(featureWrapper); + } + } + } + } + } + features3D.sort((a, b) => { + return b.intersectionZ - a.intersectionZ; + }); + const features = []; + for (let l = this._order.length - 1; l >= 0; l--) { + const layerId = this._order[l]; + if (isLayer3D(layerId)) { + for (let i = features3D.length - 1; i >= 0; i--) { + const topmost3D = features3D[i].feature; + if (layerIndex[topmost3D.layer.id] < l) + break; + features.push(topmost3D); + features3D.pop(); + } + } else { + for (const sourceResult of sourceResults) { + const layerFeatures = sourceResult[layerId]; + if (layerFeatures) { + for (const featureWrapper of layerFeatures) { + features.push(featureWrapper.feature); + } + } + } + } + } + return features; + } + queryRenderedFeatures(queryGeometry, params, transform) { + if (params && params.filter) { + this._validate(ref_properties.validateStyle.filter, 'queryRenderedFeatures.filter', params.filter, null, params); + } + const includedSources = {}; + if (params && params.layers) { + if (!Array.isArray(params.layers)) { + this.fire(new ref_properties.ErrorEvent(new Error('parameters.layers must be an Array.'))); + return []; + } + for (const layerId of params.layers) { + const layer = this._layers[layerId]; + if (!layer) { + this.fire(new ref_properties.ErrorEvent(new Error(`The layer '${ layerId }' does not exist in the map's style and cannot be queried for features.`))); + return []; + } + includedSources[layer.source] = true; + } + } + const sourceResults = []; + params.availableImages = this._availableImages; + const has3DLayer = params && params.layers ? params.layers.some(layerId => { + const layer = this.getLayer(layerId); + return layer && layer.is3D(); + }) : this.has3DLayers(); + const queryGeometryStruct = QueryGeometry.createFromScreenPoints(queryGeometry, transform); + for (const id in this._sourceCaches) { + const sourceId = this._sourceCaches[id].getSource().id; + if (params.layers && !includedSources[sourceId]) + continue; + sourceResults.push(queryRenderedFeatures(this._sourceCaches[id], this._layers, this._serializedLayers, queryGeometryStruct, params, transform, has3DLayer, !!this.map._showQueryGeometry)); + } + if (this.placement) { + sourceResults.push(queryRenderedSymbols(this._layers, this._serializedLayers, this._getLayerSourceCache.bind(this), queryGeometryStruct.screenGeometry, params, this.placement.collisionIndex, this.placement.retainedQueryData)); + } + return this._flattenAndSortRenderedFeatures(sourceResults); + } + querySourceFeatures(sourceID, params) { + if (params && params.filter) { + this._validate(ref_properties.validateStyle.filter, 'querySourceFeatures.filter', params.filter, null, params); + } + const sourceCaches = this._getSourceCaches(sourceID); + let results = []; + for (const sourceCache of sourceCaches) { + results = results.concat(querySourceFeatures(sourceCache, params)); + } + return results; + } + addSourceType(name, SourceType, callback) { + if (Style.getSourceType(name)) { + return callback(new Error(`A source type called "${ name }" already exists.`)); + } + Style.setSourceType(name, SourceType); + if (!SourceType.workerSourceURL) { + return callback(null, null); + } + this.dispatcher.broadcast('loadWorkerSource', { + name, + url: SourceType.workerSourceURL + }, callback); + } + getLight() { + return this.light.getLight(); + } + setLight(lightOptions, options = {}) { + this._checkLoaded(); + const light = this.light.getLight(); + let _update = false; + for (const key in lightOptions) { + if (!ref_properties.deepEqual(lightOptions[key], light[key])) { + _update = true; + break; + } + } + if (!_update) + return; + const parameters = { + now: ref_properties.browser.now(), + transition: ref_properties.extend({ + duration: 300, + delay: 0 + }, this.stylesheet.transition) + }; + this.light.setLight(lightOptions, options); + this.light.updateTransitions(parameters); + } + setTerrain(terrainOptions) { + this._checkLoaded(); + if (!terrainOptions) { + delete this.terrain; + delete this.stylesheet.terrain; + this.dispatcher.broadcast('enableTerrain', false); + this._force3DLayerUpdate(); + return; + } + if (typeof terrainOptions.source === 'object') { + const id = 'terrain-dem-src'; + this.addSource(id, terrainOptions.source); + terrainOptions = ref_properties.clone$1(terrainOptions); + terrainOptions = ref_properties.extend(terrainOptions, { source: id }); + } + if (this._validate(ref_properties.validateStyle.terrain, 'terrain', terrainOptions)) + return; + if (!this.terrain) { + this._createTerrain(terrainOptions); + } else { + const terrain = this.terrain; + const currSpec = terrain.get(); + for (const key in terrainOptions) { + if (!ref_properties.deepEqual(terrainOptions[key], currSpec[key])) { + terrain.set(terrainOptions); + this.stylesheet.terrain = terrainOptions; + const parameters = { + now: ref_properties.browser.now(), + transition: ref_properties.extend({ duration: 0 }, this.stylesheet.transition) + }; + terrain.updateTransitions(parameters); + break; + } + } + } + this._updateDrapeFirstLayers(); + } + _updateDrapeFirstLayers() { + if (!this.map._optimizeForTerrain || !this.terrain) { + return; + } + const draped = this._order.filter(id => { + return this.isLayerDraped(this._layers[id]); + }); + const nonDraped = this._order.filter(id => { + return !this.isLayerDraped(this._layers[id]); + }); + this._drapedFirstOrder = []; + this._drapedFirstOrder.push(...draped); + this._drapedFirstOrder.push(...nonDraped); + } + _createTerrain(terrainOptions) { + const terrain = this.terrain = new Terrain(terrainOptions); + this.stylesheet.terrain = terrainOptions; + this.dispatcher.broadcast('enableTerrain', true); + this._force3DLayerUpdate(); + const parameters = { + now: ref_properties.browser.now(), + transition: ref_properties.extend({ duration: 0 }, this.stylesheet.transition) + }; + terrain.updateTransitions(parameters); + } + _force3DLayerUpdate() { + for (const layerId in this._layers) { + const layer = this._layers[layerId]; + if (layer.type === 'fill-extrusion') { + this._updateLayer(layer); + } + } + } + _validate(validate, key, value, props, options = {}) { + if (options && options.validate === false) { + return false; + } + return emitValidationErrors(this, validate.call(ref_properties.validateStyle, ref_properties.extend({ + key, + style: this.serialize(), + value, + styleSpec: ref_properties.styleSpec + }, props))); + } + _remove() { + if (this._request) { + this._request.cancel(); + this._request = null; + } + if (this._spriteRequest) { + this._spriteRequest.cancel(); + this._spriteRequest = null; + } + ref_properties.evented.off('pluginStateChange', this._rtlTextPluginCallback); + for (const layerId in this._layers) { + const layer = this._layers[layerId]; + layer.setEventedParent(null); + } + for (const id in this._sourceCaches) { + this._sourceCaches[id].clearTiles(); + this._sourceCaches[id].setEventedParent(null); + } + this.imageManager.setEventedParent(null); + this.setEventedParent(null); + this.dispatcher.remove(); + } + _clearSource(id) { + const sourceCaches = this._getSourceCaches(id); + for (const sourceCache of sourceCaches) { + sourceCache.clearTiles(); + } + } + _reloadSource(id) { + const sourceCaches = this._getSourceCaches(id); + for (const sourceCache of sourceCaches) { + sourceCache.resume(); + sourceCache.reload(); + } + } + _updateSources(transform) { + for (const id in this._sourceCaches) { + this._sourceCaches[id].update(transform); + } + } + _generateCollisionBoxes() { + for (const id in this._sourceCaches) { + const sourceCache = this._sourceCaches[id]; + sourceCache.resume(); + sourceCache.reload(); + } + } + _updatePlacement(transform, showCollisionBoxes, fadeDuration, crossSourceCollisions, forceFullPlacement = false) { + let symbolBucketsChanged = false; + let placementCommitted = false; + const layerTiles = {}; + for (const layerID of this._order) { + const styleLayer = this._layers[layerID]; + if (styleLayer.type !== 'symbol') + continue; + if (!layerTiles[styleLayer.source]) { + const sourceCache = this._getLayerSourceCache(styleLayer); + if (!sourceCache) + continue; + layerTiles[styleLayer.source] = sourceCache.getRenderableIds(true).map(id => sourceCache.getTileByID(id)).sort((a, b) => b.tileID.overscaledZ - a.tileID.overscaledZ || (a.tileID.isLessThan(b.tileID) ? -1 : 1)); + } + const layerBucketsChanged = this.crossTileSymbolIndex.addLayer(styleLayer, layerTiles[styleLayer.source], transform.center.lng); + symbolBucketsChanged = symbolBucketsChanged || layerBucketsChanged; + } + this.crossTileSymbolIndex.pruneUnusedLayers(this._order); + forceFullPlacement = forceFullPlacement || this._layerOrderChanged || fadeDuration === 0; + if (this._layerOrderChanged) { + this.fire(new ref_properties.Event('neworder')); + } + if (forceFullPlacement || !this.pauseablePlacement || this.pauseablePlacement.isDone() && !this.placement.stillRecent(ref_properties.browser.now(), transform.zoom)) { + this.pauseablePlacement = new PauseablePlacement(transform, this._order, forceFullPlacement, showCollisionBoxes, fadeDuration, crossSourceCollisions, this.placement); + this._layerOrderChanged = false; + } + if (this.pauseablePlacement.isDone()) { + this.placement.setStale(); + } else { + this.pauseablePlacement.continuePlacement(this._order, this._layers, layerTiles); + if (this.pauseablePlacement.isDone()) { + this.placement = this.pauseablePlacement.commit(ref_properties.browser.now()); + placementCommitted = true; + } + if (symbolBucketsChanged) { + this.pauseablePlacement.placement.setStale(); + } + } + if (placementCommitted || symbolBucketsChanged) { + for (const layerID of this._order) { + const styleLayer = this._layers[layerID]; + if (styleLayer.type !== 'symbol') + continue; + this.placement.updateLayerOpacities(styleLayer, layerTiles[styleLayer.source]); + } + } + const needsRerender = !this.pauseablePlacement.isDone() || this.placement.hasTransitions(ref_properties.browser.now()); + return needsRerender; + } + _releaseSymbolFadeTiles() { + for (const id in this._sourceCaches) { + this._sourceCaches[id].releaseSymbolFadeTiles(); + } + } + getImages(mapId, params, callback) { + this.imageManager.getImages(params.icons, callback); + this._updateTilesForChangedImages(); + const setDependencies = sourceCache => { + if (sourceCache) { + sourceCache.setDependencies(params.tileID.key, params.type, params.icons); + } + }; + setDependencies(this._otherSourceCaches[params.source]); + setDependencies(this._symbolSourceCaches[params.source]); + } + getGlyphs(mapId, params, callback) { + this.glyphManager.getGlyphs(params.stacks, callback); + } + getResource(mapId, params, callback) { + return ref_properties.makeRequest(params, callback); + } + _getSourceCache(source) { + return this._otherSourceCaches[source]; + } + _getLayerSourceCache(layer) { + return layer.type === 'symbol' ? this._symbolSourceCaches[layer.source] : this._otherSourceCaches[layer.source]; + } + _getSourceCaches(source) { + const sourceCaches = []; + if (this._otherSourceCaches[source]) { + sourceCaches.push(this._otherSourceCaches[source]); + } + if (this._symbolSourceCaches[source]) { + sourceCaches.push(this._symbolSourceCaches[source]); + } + return sourceCaches; + } + has3DLayers() { + return this._num3DLayers > 0; + } + hasSymbolLayers() { + return this._numSymbolLayers > 0; + } + hasCircleLayers() { + return this._numCircleLayers > 0; + } +} +Style.getSourceType = getType; +Style.setSourceType = setType; +Style.registerForPluginStateChange = ref_properties.registerForPluginStateChange; + +var preludeFrag = "#ifdef GL_ES\nprecision mediump float;\n#else\n#if !defined(lowp)\n#define lowp\n#endif\n#if !defined(mediump)\n#define mediump\n#endif\n#if !defined(highp)\n#define highp\n#endif\n#endif\nconst float PI=3.141592653589793;"; + +var preludeVert = "#ifdef GL_ES\nprecision highp float;\n#else\n#if !defined(lowp)\n#define lowp\n#endif\n#if !defined(mediump)\n#define mediump\n#endif\n#if !defined(highp)\n#define highp\n#endif\n#endif\nvec2 unpack_float(const float packedValue) {int packedIntValue=int(packedValue);int v0=packedIntValue/256;return vec2(v0,packedIntValue-v0*256);}vec2 unpack_opacity(const float packedOpacity) {int intOpacity=int(packedOpacity)/2;return vec2(float(intOpacity)/127.0,mod(packedOpacity,2.0));}vec4 decode_color(const vec2 encodedColor) {return vec4(\nunpack_float(encodedColor[0])/255.0,unpack_float(encodedColor[1])/255.0\n);}float unpack_mix_vec2(const vec2 packedValue,const float t) {return mix(packedValue[0],packedValue[1],t);}vec4 unpack_mix_color(const vec4 packedColors,const float t) {vec4 minColor=decode_color(vec2(packedColors[0],packedColors[1]));vec4 maxColor=decode_color(vec2(packedColors[2],packedColors[3]));return mix(minColor,maxColor,t);}vec2 get_pattern_pos(const vec2 pixel_coord_upper,const vec2 pixel_coord_lower,const vec2 pattern_size,const float tile_units_to_pixels,const vec2 pos) {vec2 offset=mod(mod(mod(pixel_coord_upper,pattern_size)*256.0,pattern_size)*256.0+pixel_coord_lower,pattern_size);return (tile_units_to_pixels*pos+offset)/pattern_size;}const float PI=3.141592653589793;const vec4 AWAY=vec4(-1000.0,-1000.0,-1000.0,1);//Normalized device coordinate that is not rendered."; + +var backgroundFrag = "uniform vec4 u_color;uniform float u_opacity;void main() {gl_FragColor=u_color*u_opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var backgroundVert = "attribute vec2 a_pos;uniform mat4 u_matrix;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);}"; + +var backgroundPatternFrag = "uniform vec2 u_pattern_tl_a;uniform vec2 u_pattern_br_a;uniform vec2 u_pattern_tl_b;uniform vec2 u_pattern_br_b;uniform vec2 u_texsize;uniform float u_mix;uniform float u_opacity;uniform sampler2D u_image;varying vec2 v_pos_a;varying vec2 v_pos_b;void main() {vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(u_pattern_tl_a/u_texsize,u_pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(u_pattern_tl_b/u_texsize,u_pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);gl_FragColor=mix(color1,color2,u_mix)*u_opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var backgroundPatternVert = "uniform mat4 u_matrix;uniform vec2 u_pattern_size_a;uniform vec2 u_pattern_size_b;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform float u_scale_a;uniform float u_scale_b;uniform float u_tile_units_to_pixels;attribute vec2 a_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,u_scale_a*u_pattern_size_a,u_tile_units_to_pixels,a_pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,u_scale_b*u_pattern_size_b,u_tile_units_to_pixels,a_pos);}"; + +var circleFrag = "varying vec3 v_data;varying float v_visibility;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define mediump float radius\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define highp vec4 stroke_color\n#pragma mapbox: define mediump float stroke_width\n#pragma mapbox: define lowp float stroke_opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize mediump float radius\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize highp vec4 stroke_color\n#pragma mapbox: initialize mediump float stroke_width\n#pragma mapbox: initialize lowp float stroke_opacity\nvec2 extrude=v_data.xy;float extrude_length=length(extrude);lowp float antialiasblur=v_data.z;float antialiased_blur=-max(blur,antialiasblur);float opacity_t=smoothstep(0.0,antialiased_blur,extrude_length-1.0);float color_t=stroke_width < 0.01 ? 0.0 : smoothstep(\nantialiased_blur,0.0,extrude_length-radius/(radius+stroke_width)\n);gl_FragColor=v_visibility*opacity_t*mix(color*opacity,stroke_color*stroke_opacity,color_t);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var circleVert = "#define NUM_VISIBILITY_RINGS 2\n#define INV_SQRT2 0.70710678\n#define ELEVATION_BIAS 0.0001\n#define NUM_SAMPLES_PER_RING 16\nuniform mat4 u_matrix;uniform vec2 u_extrude_scale;uniform lowp float u_device_pixel_ratio;uniform highp float u_camera_to_center_distance;attribute vec2 a_pos;varying vec3 v_data;varying float v_visibility;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define mediump float radius\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define highp vec4 stroke_color\n#pragma mapbox: define mediump float stroke_width\n#pragma mapbox: define lowp float stroke_opacity\nvec2 calc_offset(vec2 extrusion,float radius,float stroke_width, float view_scale) {return extrusion*(radius+stroke_width)*u_extrude_scale*view_scale;}float cantilevered_elevation(vec2 pos,float radius,float stroke_width,float view_scale) {vec2 c1=pos+calc_offset(vec2(-1,-1),radius,stroke_width,view_scale);vec2 c2=pos+calc_offset(vec2(1,-1),radius,stroke_width,view_scale);vec2 c3=pos+calc_offset(vec2(1,1),radius,stroke_width,view_scale);vec2 c4=pos+calc_offset(vec2(-1,1),radius,stroke_width,view_scale);float h1=elevation(c1)+ELEVATION_BIAS;float h2=elevation(c2)+ELEVATION_BIAS;float h3=elevation(c3)+ELEVATION_BIAS;float h4=elevation(c4)+ELEVATION_BIAS;return max(h4,max(h3,max(h1,h2)));}float circle_elevation(vec2 pos) {\n#if defined(TERRAIN)\nreturn elevation(pos)+ELEVATION_BIAS;\n#else\nreturn 0.0;\n#endif\n}vec4 project_vertex(vec2 extrusion,vec4 world_center,vec4 projected_center,float radius,float stroke_width, float view_scale) {vec2 sample_offset=calc_offset(extrusion,radius,stroke_width,view_scale);\n#ifdef PITCH_WITH_MAP\nreturn u_matrix*( world_center+vec4(sample_offset,0,0) );\n#else\nreturn projected_center+vec4(sample_offset,0,0);\n#endif\n}float get_sample_step() {\n#ifdef PITCH_WITH_MAP\nreturn 2.0*PI/float(NUM_SAMPLES_PER_RING);\n#else\nreturn PI/float(NUM_SAMPLES_PER_RING);\n#endif\n}void main(void) {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize mediump float radius\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize highp vec4 stroke_color\n#pragma mapbox: initialize mediump float stroke_width\n#pragma mapbox: initialize lowp float stroke_opacity\nvec2 extrude=vec2(mod(a_pos,2.0)*2.0-1.0);vec2 circle_center=floor(a_pos*0.5);float height=circle_elevation(circle_center);vec4 world_center=vec4(circle_center,height,1);vec4 projected_center=u_matrix*world_center;float view_scale=0.0;\n#ifdef PITCH_WITH_MAP\n#ifdef SCALE_WITH_MAP\nview_scale=1.0;\n#else\nview_scale=projected_center.w/u_camera_to_center_distance;\n#endif\n#else\n#ifdef SCALE_WITH_MAP\nview_scale=u_camera_to_center_distance;\n#else\nview_scale=projected_center.w;\n#endif\n#endif\ngl_Position=project_vertex(extrude,world_center,projected_center,radius,stroke_width,view_scale);float visibility=0.0;\n#ifdef TERRAIN\nfloat step=get_sample_step();\n#ifdef PITCH_WITH_MAP\nfloat cantilevered_height=cantilevered_elevation(circle_center,radius,stroke_width,view_scale);vec4 occlusion_world_center=vec4(circle_center,cantilevered_height,1);vec4 occlusion_projected_center=u_matrix*occlusion_world_center;\n#else\nvec4 occlusion_world_center=world_center;vec4 occlusion_projected_center=projected_center;\n#endif\nfor(int ring=0; ring < NUM_VISIBILITY_RINGS; ring++) {float scale=(float(ring)+1.0)/float(NUM_VISIBILITY_RINGS);for(int i=0; i < NUM_SAMPLES_PER_RING; i++) {vec2 extrusion=vec2(cos(step*float(i)),-sin(step*float(i)))*scale;vec4 frag_pos=project_vertex(extrusion,occlusion_world_center,occlusion_projected_center,radius,stroke_width,view_scale);visibility+=float(!isOccluded(frag_pos));}}visibility/=float(NUM_VISIBILITY_RINGS)*float(NUM_SAMPLES_PER_RING);\n#else\nvisibility=1.0;\n#endif\nv_visibility=visibility;lowp float antialiasblur=1.0/u_device_pixel_ratio/(radius+stroke_width);v_data=vec3(extrude.x,extrude.y,antialiasblur);}"; + +var clippingMaskFrag = "void main() {gl_FragColor=vec4(1.0);}"; + +var clippingMaskVert = "attribute vec2 a_pos;uniform mat4 u_matrix;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);}"; + +var heatmapFrag = "uniform highp float u_intensity;varying vec2 v_extrude;\n#pragma mapbox: define highp float weight\n#define GAUSS_COEF 0.3989422804014327\nvoid main() {\n#pragma mapbox: initialize highp float weight\nfloat d=-0.5*3.0*3.0*dot(v_extrude,v_extrude);float val=weight*u_intensity*GAUSS_COEF*exp(d);gl_FragColor=vec4(val,1.0,1.0,1.0);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var heatmapVert = "uniform mat4 u_matrix;uniform float u_extrude_scale;uniform float u_opacity;uniform float u_intensity;attribute vec2 a_pos;varying vec2 v_extrude;\n#pragma mapbox: define highp float weight\n#pragma mapbox: define mediump float radius\nconst highp float ZERO=1.0/255.0/16.0;\n#define GAUSS_COEF 0.3989422804014327\nvoid main(void) {\n#pragma mapbox: initialize highp float weight\n#pragma mapbox: initialize mediump float radius\nvec2 unscaled_extrude=vec2(mod(a_pos,2.0)*2.0-1.0);float S=sqrt(-2.0*log(ZERO/weight/u_intensity/GAUSS_COEF))/3.0;v_extrude=S*unscaled_extrude;vec2 extrude=v_extrude*radius*u_extrude_scale;vec4 pos=vec4(floor(a_pos*0.5)+extrude,elevation(floor(a_pos*0.5)),1);gl_Position=u_matrix*pos;}"; + +var heatmapTextureFrag = "uniform sampler2D u_image;uniform sampler2D u_color_ramp;uniform float u_opacity;varying vec2 v_pos;void main() {float t=texture2D(u_image,v_pos).r;vec4 color=texture2D(u_color_ramp,vec2(t,0.5));gl_FragColor=color*u_opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(0.0);\n#endif\n}"; + +var heatmapTextureVert = "uniform mat4 u_matrix;uniform vec2 u_world;attribute vec2 a_pos;varying vec2 v_pos;void main() {gl_Position=u_matrix*vec4(a_pos*u_world,0,1);v_pos.x=a_pos.x;v_pos.y=1.0-a_pos.y;}"; + +var collisionBoxFrag = "varying float v_placed;varying float v_notUsed;void main() {vec4 red =vec4(1.0,0.0,0.0,1.0);vec4 blue=vec4(0.0,0.0,1.0,0.5);gl_FragColor =mix(red,blue,step(0.5,v_placed))*0.5;gl_FragColor*=mix(1.0,0.1,step(0.5,v_notUsed));}"; + +var collisionBoxVert = "attribute vec2 a_pos;attribute vec2 a_anchor_pos;attribute vec2 a_extrude;attribute vec2 a_placed;attribute vec2 a_shift;attribute float a_size_scale;attribute vec2 a_padding;uniform mat4 u_matrix;uniform vec2 u_extrude_scale;uniform float u_camera_to_center_distance;varying float v_placed;varying float v_notUsed;void main() {vec4 projectedPoint=u_matrix*vec4(a_anchor_pos,elevation(a_anchor_pos),1);highp float camera_to_anchor_distance=projectedPoint.w;highp float collision_perspective_ratio=clamp(\n0.5+0.5*(u_camera_to_center_distance/camera_to_anchor_distance),0.0,1.5);gl_Position=u_matrix*vec4(a_pos,elevation(a_pos),1.0);gl_Position.xy+=(a_extrude*a_size_scale+a_shift+a_padding)*u_extrude_scale*gl_Position.w*collision_perspective_ratio;v_placed=a_placed.x;v_notUsed=a_placed.y;}"; + +var collisionCircleFrag = "varying float v_radius;varying vec2 v_extrude;varying float v_perspective_ratio;varying float v_collision;void main() {float alpha=0.5*min(v_perspective_ratio,1.0);float stroke_radius=0.9*max(v_perspective_ratio,1.0);float distance_to_center=length(v_extrude);float distance_to_edge=abs(distance_to_center-v_radius);float opacity_t=smoothstep(-stroke_radius,0.0,-distance_to_edge);vec4 color=mix(vec4(0.0,0.0,1.0,0.5),vec4(1.0,0.0,0.0,1.0),v_collision);gl_FragColor=color*alpha*opacity_t;}"; + +var collisionCircleVert = "attribute vec2 a_pos_2f;attribute float a_radius;attribute vec2 a_flags;uniform mat4 u_matrix;uniform mat4 u_inv_matrix;uniform vec2 u_viewport_size;uniform float u_camera_to_center_distance;varying float v_radius;varying vec2 v_extrude;varying float v_perspective_ratio;varying float v_collision;vec3 toTilePosition(vec2 screenPos) {vec4 rayStart=u_inv_matrix*vec4(screenPos,-1.0,1.0);vec4 rayEnd =u_inv_matrix*vec4(screenPos, 1.0,1.0);rayStart.xyz/=rayStart.w;rayEnd.xyz /=rayEnd.w;highp float t=(0.0-rayStart.z)/(rayEnd.z-rayStart.z);return mix(rayStart.xyz,rayEnd.xyz,t);}void main() {vec2 quadCenterPos=a_pos_2f;float radius=a_radius;float collision=a_flags.x;float vertexIdx=a_flags.y;vec2 quadVertexOffset=vec2(\nmix(-1.0,1.0,float(vertexIdx >=2.0)),mix(-1.0,1.0,float(vertexIdx >=1.0 && vertexIdx <=2.0)));vec2 quadVertexExtent=quadVertexOffset*radius;vec3 tilePos=toTilePosition(quadCenterPos);vec4 clipPos=u_matrix*vec4(tilePos,1.0);highp float camera_to_anchor_distance=clipPos.w;highp float collision_perspective_ratio=clamp(\n0.5+0.5*(u_camera_to_center_distance/camera_to_anchor_distance),0.0,4.0);float padding_factor=1.2;v_radius=radius;v_extrude=quadVertexExtent*padding_factor;v_perspective_ratio=collision_perspective_ratio;v_collision=collision;gl_Position=vec4(clipPos.xyz/clipPos.w,1.0)+vec4(quadVertexExtent*padding_factor/u_viewport_size*2.0,0.0,0.0);}"; + +var debugFrag = "uniform highp vec4 u_color;uniform sampler2D u_overlay;varying vec2 v_uv;void main() {vec4 overlay_color=texture2D(u_overlay,v_uv);gl_FragColor=mix(u_color,overlay_color,overlay_color.a);}"; + +var debugVert = "attribute vec2 a_pos;varying vec2 v_uv;uniform mat4 u_matrix;uniform float u_overlay_scale;void main() {float h=elevation(a_pos);v_uv=a_pos/8192.0;gl_Position=u_matrix*vec4(a_pos*u_overlay_scale,h,1);}"; + +var fillFrag = "#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float opacity\ngl_FragColor=color*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var fillVert = "attribute vec2 a_pos;uniform mat4 u_matrix;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float opacity\ngl_Position=u_matrix*vec4(a_pos,0,1);}"; + +var fillOutlineFrag = "varying vec2 v_pos;\n#pragma mapbox: define highp vec4 outline_color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 outline_color\n#pragma mapbox: initialize lowp float opacity\nfloat dist=length(v_pos-gl_FragCoord.xy);float alpha=1.0-smoothstep(0.0,1.0,dist);gl_FragColor=outline_color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var fillOutlineVert = "attribute vec2 a_pos;uniform mat4 u_matrix;uniform vec2 u_world;varying vec2 v_pos;\n#pragma mapbox: define highp vec4 outline_color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 outline_color\n#pragma mapbox: initialize lowp float opacity\ngl_Position=u_matrix*vec4(a_pos,0,1);v_pos=(gl_Position.xy/gl_Position.w+1.0)/2.0*u_world;}"; + +var fillOutlinePatternFrag = "uniform vec2 u_texsize;uniform sampler2D u_image;uniform float u_fade;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec2 v_pos;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);float dist=length(v_pos-gl_FragCoord.xy);float alpha=1.0-smoothstep(0.0,1.0,dist);gl_FragColor=mix(color1,color2,u_fade)*alpha*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var fillOutlinePatternVert = "uniform mat4 u_matrix;uniform vec2 u_world;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform vec3 u_scale;attribute vec2 a_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec2 v_pos;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float tileRatio=u_scale.x;float fromScale=u_scale.y;float toScale=u_scale.z;gl_Position=u_matrix*vec4(a_pos,0,1);vec2 display_size_a=(pattern_br_a-pattern_tl_a)/pixel_ratio_from;vec2 display_size_b=(pattern_br_b-pattern_tl_b)/pixel_ratio_to;v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,fromScale*display_size_a,tileRatio,a_pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,toScale*display_size_b,tileRatio,a_pos);v_pos=(gl_Position.xy/gl_Position.w+1.0)/2.0*u_world;}"; + +var fillPatternFrag = "uniform vec2 u_texsize;uniform float u_fade;uniform sampler2D u_image;varying vec2 v_pos_a;varying vec2 v_pos_b;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);gl_FragColor=mix(color1,color2,u_fade)*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var fillPatternVert = "uniform mat4 u_matrix;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform vec3 u_scale;attribute vec2 a_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float tileZoomRatio=u_scale.x;float fromScale=u_scale.y;float toScale=u_scale.z;vec2 display_size_a=(pattern_br_a-pattern_tl_a)/pixel_ratio_from;vec2 display_size_b=(pattern_br_b-pattern_tl_b)/pixel_ratio_to;gl_Position=u_matrix*vec4(a_pos,0,1);v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,fromScale*display_size_a,tileZoomRatio,a_pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,toScale*display_size_b,tileZoomRatio,a_pos);}"; + +var fillExtrusionFrag = "varying vec4 v_color;void main() {gl_FragColor=v_color;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var fillExtrusionVert = "uniform mat4 u_matrix;uniform vec3 u_lightcolor;uniform lowp vec3 u_lightpos;uniform lowp float u_lightintensity;uniform float u_vertical_gradient;uniform lowp float u_opacity;attribute vec4 a_pos_normal_ed;attribute vec2 a_centroid_pos;varying vec4 v_color;\n#pragma mapbox: define highp float base\n#pragma mapbox: define highp float height\n#pragma mapbox: define highp vec4 color\nvoid main() {\n#pragma mapbox: initialize highp float base\n#pragma mapbox: initialize highp float height\n#pragma mapbox: initialize highp vec4 color\nvec3 pos_nx=floor(a_pos_normal_ed.xyz*0.5);mediump vec3 top_up_ny=a_pos_normal_ed.xyz-2.0*pos_nx;float x_normal=pos_nx.z/8192.0;vec3 normal=top_up_ny.y==1.0 ? vec3(0.0,0.0,1.0) : normalize(vec3(x_normal,(2.0*top_up_ny.z-1.0)*(1.0-abs(x_normal)),0.0));base=max(0.0,base);height=max(0.0,height);float t=top_up_ny.x;\n#ifdef TERRAIN\nvec2 centroid_pos=a_centroid_pos;bool flat_roof=centroid_pos.x !=0.0;float ele=elevation(pos_nx.xy);float hidden=float(centroid_pos.x==0.0 && centroid_pos.y==1.0);float c_ele=flat_roof ? centroid_pos.y==0.0 ? elevationFromUint16(centroid_pos.x) : flatElevation(centroid_pos) : ele;float h=flat_roof ? max(c_ele+height,ele+base+2.0) : ele+(t > 0.0 ? height : base==0.0 ?-5.0 : base);gl_Position=mix(u_matrix*vec4(pos_nx.xy,h,1),AWAY,hidden);\n#else\ngl_Position=u_matrix*vec4(pos_nx.xy,t > 0.0 ? height : base,1);\n#endif\nfloat colorvalue=color.r*0.2126+color.g*0.7152+color.b*0.0722;v_color=vec4(0.0,0.0,0.0,1.0);vec4 ambientlight=vec4(0.03,0.03,0.03,1.0);color+=ambientlight;float directional=clamp(dot(normal,u_lightpos),0.0,1.0);directional=mix((1.0-u_lightintensity),max((1.0-colorvalue+u_lightintensity),1.0),directional);if (normal.y !=0.0) {directional*=(\n(1.0-u_vertical_gradient)+(u_vertical_gradient*clamp((t+base)*pow(height/150.0,0.5),mix(0.7,0.98,1.0-u_lightintensity),1.0)));}v_color.r+=clamp(color.r*directional*u_lightcolor.r,mix(0.0,0.3,1.0-u_lightcolor.r),1.0);v_color.g+=clamp(color.g*directional*u_lightcolor.g,mix(0.0,0.3,1.0-u_lightcolor.g),1.0);v_color.b+=clamp(color.b*directional*u_lightcolor.b,mix(0.0,0.3,1.0-u_lightcolor.b),1.0);v_color*=u_opacity;}"; + +var fillExtrusionPatternFrag = "uniform vec2 u_texsize;uniform float u_fade;uniform sampler2D u_image;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec4 v_lighting;\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float base\n#pragma mapbox: initialize lowp float height\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);vec4 mixedColor=mix(color1,color2,u_fade);gl_FragColor=mixedColor*v_lighting;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var fillExtrusionPatternVert = "uniform mat4 u_matrix;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform float u_height_factor;uniform vec3 u_scale;uniform float u_vertical_gradient;uniform lowp float u_opacity;uniform vec3 u_lightcolor;uniform lowp vec3 u_lightpos;uniform lowp float u_lightintensity;attribute vec4 a_pos_normal_ed;attribute vec2 a_centroid_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec4 v_lighting;\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float base\n#pragma mapbox: initialize lowp float height\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float tileRatio=u_scale.x;float fromScale=u_scale.y;float toScale=u_scale.z;vec3 pos_nx=floor(a_pos_normal_ed.xyz*0.5);mediump vec3 top_up_ny=a_pos_normal_ed.xyz-2.0*pos_nx;float x_normal=pos_nx.z/8192.0;vec3 normal=top_up_ny.y==1.0 ? vec3(0.0,0.0,1.0) : normalize(vec3(x_normal,(2.0*top_up_ny.z-1.0)*(1.0-abs(x_normal)),0.0));float edgedistance=a_pos_normal_ed.w;vec2 display_size_a=(pattern_br_a-pattern_tl_a)/pixel_ratio_from;vec2 display_size_b=(pattern_br_b-pattern_tl_b)/pixel_ratio_to;base=max(0.0,base);height=max(0.0,height);float t=top_up_ny.x;float z=t > 0.0 ? height : base;\n#ifdef TERRAIN\nvec2 centroid_pos=a_centroid_pos;bool flat_roof=centroid_pos.x !=0.0;float ele=elevation(pos_nx.xy);float hidden=float(centroid_pos.x==0.0 && centroid_pos.y==1.0);float c_ele=flat_roof ? centroid_pos.y==0.0 ? elevationFromUint16(centroid_pos.x) : flatElevation(centroid_pos) : ele;float h=flat_roof ? max(c_ele+height,ele+base+2.0) : ele+(t > 0.0 ? height : base==0.0 ?-5.0 : base);gl_Position=mix(u_matrix*vec4(pos_nx.xy,h,1),AWAY,hidden);\n#else\ngl_Position=u_matrix*vec4(pos_nx.xy,z,1);\n#endif\nvec2 pos=normal.z==1.0\n? pos_nx.xy\n: vec2(edgedistance,z*u_height_factor);v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,fromScale*display_size_a,tileRatio,pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,toScale*display_size_b,tileRatio,pos);v_lighting=vec4(0.0,0.0,0.0,1.0);float directional=clamp(dot(normal,u_lightpos),0.0,1.0);directional=mix((1.0-u_lightintensity),max((0.5+u_lightintensity),1.0),directional);if (normal.y !=0.0) {directional*=(\n(1.0-u_vertical_gradient)+(u_vertical_gradient*clamp((t+base)*pow(height/150.0,0.5),mix(0.7,0.98,1.0-u_lightintensity),1.0)));}v_lighting.rgb+=clamp(directional*u_lightcolor,mix(vec3(0.0),vec3(0.3),1.0-u_lightcolor),vec3(1.0));v_lighting*=u_opacity;}"; + +var hillshadePrepareFrag = "#ifdef GL_ES\nprecision highp float;\n#endif\nuniform sampler2D u_image;varying vec2 v_pos;uniform vec2 u_dimension;uniform float u_zoom;uniform vec4 u_unpack;float getElevation(vec2 coord,float bias) {vec4 data=texture2D(u_image,coord)*255.0;data.a=-1.0;return dot(data,u_unpack)/4.0;}void main() {vec2 epsilon=1.0/u_dimension;float a=getElevation(v_pos+vec2(-epsilon.x,-epsilon.y),0.0);float b=getElevation(v_pos+vec2(0,-epsilon.y),0.0);float c=getElevation(v_pos+vec2(epsilon.x,-epsilon.y),0.0);float d=getElevation(v_pos+vec2(-epsilon.x,0),0.0);float e=getElevation(v_pos,0.0);float f=getElevation(v_pos+vec2(epsilon.x,0),0.0);float g=getElevation(v_pos+vec2(-epsilon.x,epsilon.y),0.0);float h=getElevation(v_pos+vec2(0,epsilon.y),0.0);float i=getElevation(v_pos+vec2(epsilon.x,epsilon.y),0.0);float exaggerationFactor=u_zoom < 2.0 ? 0.4 : u_zoom < 4.5 ? 0.35 : 0.3;float exaggeration=u_zoom < 15.0 ? (u_zoom-15.0)*exaggerationFactor : 0.0;vec2 deriv=vec2(\n(c+f+f+i)-(a+d+d+g),(g+h+h+i)-(a+b+b+c)\n)/pow(2.0,exaggeration+(19.2562-u_zoom));gl_FragColor=clamp(vec4(\nderiv.x/2.0+0.5,deriv.y/2.0+0.5,1.0,1.0),0.0,1.0);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var hillshadePrepareVert = "uniform mat4 u_matrix;uniform vec2 u_dimension;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);highp vec2 epsilon=1.0/u_dimension;float scale=(u_dimension.x-2.0)/u_dimension.x;v_pos=(a_texture_pos/8192.0)*scale+epsilon;}"; + +var hillshadeFrag = "uniform sampler2D u_image;varying vec2 v_pos;uniform vec2 u_latrange;uniform vec2 u_light;uniform vec4 u_shadow;uniform vec4 u_highlight;uniform vec4 u_accent;void main() {vec4 pixel=texture2D(u_image,v_pos);vec2 deriv=((pixel.rg*2.0)-1.0);float scaleFactor=cos(radians((u_latrange[0]-u_latrange[1])*(1.0-v_pos.y)+u_latrange[1]));float slope=atan(1.25*length(deriv)/scaleFactor);float aspect=deriv.x !=0.0 ? atan(deriv.y,-deriv.x) : PI/2.0*(deriv.y > 0.0 ? 1.0 :-1.0);float intensity=u_light.x;float azimuth=u_light.y+PI;float base=1.875-intensity*1.75;float maxValue=0.5*PI;float scaledSlope=intensity !=0.5 ? ((pow(base,slope)-1.0)/(pow(base,maxValue)-1.0))*maxValue : slope;float accent=cos(scaledSlope);vec4 accent_color=(1.0-accent)*u_accent*clamp(intensity*2.0,0.0,1.0);float shade=abs(mod((aspect+azimuth)/PI+0.5,2.0)-1.0);vec4 shade_color=mix(u_shadow,u_highlight,shade)*sin(scaledSlope)*clamp(intensity*2.0,0.0,1.0);gl_FragColor=accent_color*(1.0-shade_color.a)+shade_color;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var hillshadeVert = "uniform mat4 u_matrix;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);v_pos=a_texture_pos/8192.0;}"; + +var lineFrag = "uniform lowp float u_device_pixel_ratio;varying vec2 v_width2;varying vec2 v_normal;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\nfloat dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);gl_FragColor=color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var lineVert = "\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;uniform mat4 u_matrix;uniform mediump float u_ratio;uniform vec2 u_units_to_pixels;uniform lowp float u_device_pixel_ratio;varying vec2 v_normal;varying vec2 v_width2;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float width\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;\n#ifndef RENDER_TO_TEXTURE\nfloat extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;\n#else\nv_gamma_scale=1.0;\n#endif\nv_width2=vec2(outset,inset);}"; + +var lineGradientFrag = "uniform lowp float u_device_pixel_ratio;uniform sampler2D u_image;varying vec2 v_width2;varying vec2 v_normal;varying float v_gamma_scale;varying highp vec2 v_uv;\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\nfloat dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);vec4 color=texture2D(u_image,v_uv);gl_FragColor=color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var lineGradientVert = "\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;attribute float a_uv_x;attribute float a_split_index;uniform mat4 u_matrix;uniform mediump float u_ratio;uniform lowp float u_device_pixel_ratio;uniform vec2 u_units_to_pixels;uniform float u_image_height;varying vec2 v_normal;varying vec2 v_width2;varying float v_gamma_scale;varying highp vec2 v_uv;\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\nvoid main() {\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float width\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;highp float texel_height=1.0/u_image_height;highp float half_texel_height=0.5*texel_height;v_uv=vec2(a_uv_x,a_split_index*texel_height-half_texel_height);vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;\n#ifndef RENDER_TO_TEXTURE\nfloat extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;\n#else\nv_gamma_scale=1.0;\n#endif\nv_width2=vec2(outset,inset);}"; + +var linePatternFrag = "uniform lowp float u_device_pixel_ratio;uniform vec2 u_texsize;uniform float u_fade;uniform mediump vec3 u_scale;uniform sampler2D u_image;varying vec2 v_normal;varying vec2 v_width2;varying float v_linesofar;varying float v_gamma_scale;varying float v_width;\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float tileZoomRatio=u_scale.x;float fromScale=u_scale.y;float toScale=u_scale.z;vec2 display_size_a=(pattern_br_a-pattern_tl_a)/pixel_ratio_from;vec2 display_size_b=(pattern_br_b-pattern_tl_b)/pixel_ratio_to;vec2 pattern_size_a=vec2(display_size_a.x*fromScale/tileZoomRatio,display_size_a.y);vec2 pattern_size_b=vec2(display_size_b.x*toScale/tileZoomRatio,display_size_b.y);float aspect_a=display_size_a.y/v_width;float aspect_b=display_size_b.y/v_width;float dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);float x_a=mod(v_linesofar/pattern_size_a.x*aspect_a,1.0);float x_b=mod(v_linesofar/pattern_size_b.x*aspect_b,1.0);float y=0.5*v_normal.y+0.5;vec2 texel_size=1.0/u_texsize;vec2 pos_a=mix(pattern_tl_a*texel_size-texel_size,pattern_br_a*texel_size+texel_size,vec2(x_a,y));vec2 pos_b=mix(pattern_tl_b*texel_size-texel_size,pattern_br_b*texel_size+texel_size,vec2(x_b,y));vec4 color=mix(texture2D(u_image,pos_a),texture2D(u_image,pos_b),u_fade);gl_FragColor=color*alpha*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var linePatternVert = "\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;attribute float a_linesofar;uniform mat4 u_matrix;uniform vec2 u_units_to_pixels;uniform mediump float u_ratio;uniform lowp float u_device_pixel_ratio;varying vec2 v_normal;varying vec2 v_width2;varying float v_linesofar;varying float v_gamma_scale;varying float v_width;\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float pixel_ratio_from\n#pragma mapbox: define lowp float pixel_ratio_to\nvoid main() {\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize mediump float width\n#pragma mapbox: initialize lowp float floorwidth\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float pixel_ratio_from\n#pragma mapbox: initialize lowp float pixel_ratio_to\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;\n#ifndef RENDER_TO_TEXTURE\nfloat extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;\n#else\nv_gamma_scale=1.0;\n#endif\nv_linesofar=a_linesofar;v_width2=vec2(outset,inset);v_width=floorwidth;}"; + +var lineSDFFrag = "uniform lowp float u_device_pixel_ratio;uniform sampler2D u_image;uniform float u_sdfgamma;uniform float u_mix;varying vec2 v_normal;varying vec2 v_width2;varying vec2 v_tex_a;varying vec2 v_tex_b;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float width\n#pragma mapbox: initialize lowp float floorwidth\nfloat dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);float sdfdist_a=texture2D(u_image,v_tex_a).a;float sdfdist_b=texture2D(u_image,v_tex_b).a;float sdfdist=mix(sdfdist_a,sdfdist_b,u_mix);alpha*=smoothstep(0.5-u_sdfgamma/floorwidth,0.5+u_sdfgamma/floorwidth,sdfdist);gl_FragColor=color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var lineSDFVert = "\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;attribute float a_linesofar;uniform mat4 u_matrix;uniform mediump float u_ratio;uniform lowp float u_device_pixel_ratio;uniform vec2 u_patternscale_a;uniform float u_tex_y_a;uniform vec2 u_patternscale_b;uniform float u_tex_y_b;uniform vec2 u_units_to_pixels;varying vec2 v_normal;varying vec2 v_width2;varying vec2 v_tex_a;varying vec2 v_tex_b;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float width\n#pragma mapbox: initialize lowp float floorwidth\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;\n#ifndef RENDER_TO_TEXTURE\nfloat extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;\n#else\nv_gamma_scale=1.0;\n#endif\nv_tex_a=vec2(a_linesofar*u_patternscale_a.x/floorwidth,normal.y*u_patternscale_a.y+u_tex_y_a);v_tex_b=vec2(a_linesofar*u_patternscale_b.x/floorwidth,normal.y*u_patternscale_b.y+u_tex_y_b);v_width2=vec2(outset,inset);}"; + +var rasterFrag = "uniform float u_fade_t;uniform float u_opacity;uniform sampler2D u_image0;uniform sampler2D u_image1;varying vec2 v_pos0;varying vec2 v_pos1;uniform float u_brightness_low;uniform float u_brightness_high;uniform float u_saturation_factor;uniform float u_contrast_factor;uniform vec3 u_spin_weights;void main() {vec4 color0=texture2D(u_image0,v_pos0);vec4 color1=texture2D(u_image1,v_pos1);if (color0.a > 0.0) {color0.rgb=color0.rgb/color0.a;}if (color1.a > 0.0) {color1.rgb=color1.rgb/color1.a;}vec4 color=mix(color0,color1,u_fade_t);color.a*=u_opacity;vec3 rgb=color.rgb;rgb=vec3(\ndot(rgb,u_spin_weights.xyz),dot(rgb,u_spin_weights.zxy),dot(rgb,u_spin_weights.yzx));float average=(color.r+color.g+color.b)/3.0;rgb+=(average-rgb)*u_saturation_factor;rgb=(rgb-0.5)*u_contrast_factor+0.5;vec3 u_high_vec=vec3(u_brightness_low,u_brightness_low,u_brightness_low);vec3 u_low_vec=vec3(u_brightness_high,u_brightness_high,u_brightness_high);gl_FragColor=vec4(mix(u_high_vec,u_low_vec,rgb)*color.a,color.a);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var rasterVert = "uniform mat4 u_matrix;uniform vec2 u_tl_parent;uniform float u_scale_parent;uniform float u_buffer_scale;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos0;varying vec2 v_pos1;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);v_pos0=(((a_texture_pos/8192.0)-0.5)/u_buffer_scale )+0.5;v_pos1=(v_pos0*u_scale_parent)+u_tl_parent;}"; + +var symbolIconFrag = "uniform sampler2D u_texture;varying vec2 v_tex;varying float v_fade_opacity;\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\nlowp float alpha=opacity*v_fade_opacity;gl_FragColor=texture2D(u_texture,v_tex)*alpha;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var symbolIconVert = "attribute vec4 a_pos_offset;attribute vec4 a_data;attribute vec4 a_pixeloffset;attribute vec3 a_projected_pos;attribute float a_fade_opacity;uniform bool u_is_size_zoom_constant;uniform bool u_is_size_feature_constant;uniform highp float u_size_t;uniform highp float u_size;uniform highp float u_camera_to_center_distance;uniform highp float u_pitch;uniform bool u_rotate_symbol;uniform highp float u_aspect_ratio;uniform float u_fade_change;uniform mat4 u_matrix;uniform mat4 u_label_plane_matrix;uniform mat4 u_coord_matrix;uniform bool u_is_text;uniform bool u_pitch_with_map;uniform vec2 u_texsize;varying vec2 v_tex;varying float v_fade_opacity;\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\nvec2 a_pos=a_pos_offset.xy;vec2 a_offset=a_pos_offset.zw;vec2 a_tex=a_data.xy;vec2 a_size=a_data.zw;float a_size_min=floor(a_size[0]*0.5);vec2 a_pxoffset=a_pixeloffset.xy;vec2 a_minFontScale=a_pixeloffset.zw/256.0;highp float segment_angle=-a_projected_pos[2];float size;if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {size=mix(a_size_min,a_size[1],u_size_t)/128.0;} else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {size=a_size_min/128.0;} else {size=u_size;}float h=elevation(a_pos);vec4 projectedPoint=u_matrix*vec4(a_pos,h,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float distance_ratio=u_pitch_with_map ?\ncamera_to_anchor_distance/u_camera_to_center_distance :\nu_camera_to_center_distance/camera_to_anchor_distance;highp float perspective_ratio=clamp(\n0.5+0.5*distance_ratio,0.0,1.5);size*=perspective_ratio;float fontScale=u_is_text ? size/24.0 : size;highp float symbol_rotation=0.0;if (u_rotate_symbol) {vec4 offsetProjectedPoint=u_matrix*vec4(a_pos+vec2(1,0),h,1);vec2 a=projectedPoint.xy/projectedPoint.w;vec2 b=offsetProjectedPoint.xy/offsetProjectedPoint.w;symbol_rotation=atan((b.y-a.y)/u_aspect_ratio,b.x-a.x);}highp float angle_sin=sin(segment_angle+symbol_rotation);highp float angle_cos=cos(segment_angle+symbol_rotation);mat2 rotation_matrix=mat2(angle_cos,-1.0*angle_sin,angle_sin,angle_cos);vec4 projected_pos=u_label_plane_matrix*vec4(a_projected_pos.xy,h,1.0);float z=0.0;vec2 offset=rotation_matrix*(a_offset/32.0*max(a_minFontScale,fontScale)+a_pxoffset/16.0);\n#ifdef PITCH_WITH_MAP_TERRAIN\nvec4 tile_pos=u_label_plane_matrix_inv*vec4(a_projected_pos.xy+offset,0.0,1.0);z=elevation(tile_pos.xy);\n#endif\nfloat occlusion_fade=occlusionFade(projectedPoint);gl_Position=mix(u_coord_matrix*vec4(projected_pos.xy/projected_pos.w+offset,z,1.0),AWAY,float(projectedPoint.w <=0.0 || occlusion_fade==0.0));v_tex=a_tex/u_texsize;vec2 fade_opacity=unpack_opacity(a_fade_opacity);float fade_change=fade_opacity[1] > 0.5 ? u_fade_change :-u_fade_change;v_fade_opacity=max(0.0,min(occlusion_fade,fade_opacity[0]+fade_change));}"; + +var symbolSDFFrag = "#define SDF_PX 8.0\nuniform bool u_is_halo;uniform sampler2D u_texture;uniform highp float u_gamma_scale;uniform lowp float u_device_pixel_ratio;uniform bool u_is_text;varying vec2 v_data0;varying vec3 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nfloat EDGE_GAMMA=0.105/u_device_pixel_ratio;vec2 tex=v_data0.xy;float gamma_scale=v_data1.x;float size=v_data1.y;float fade_opacity=v_data1[2];float fontScale=u_is_text ? size/24.0 : size;lowp vec4 color=fill_color;highp float gamma=EDGE_GAMMA/(fontScale*u_gamma_scale);lowp float buff=(256.0-64.0)/256.0;if (u_is_halo) {color=halo_color;gamma=(halo_blur*1.19/SDF_PX+EDGE_GAMMA)/(fontScale*u_gamma_scale);buff=(6.0-halo_width/fontScale)/SDF_PX;}lowp float dist=texture2D(u_texture,tex).a;highp float gamma_scaled=gamma*gamma_scale;highp float alpha=smoothstep(buff-gamma_scaled,buff+gamma_scaled,dist);gl_FragColor=color*(alpha*opacity*fade_opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var symbolSDFVert = "attribute vec4 a_pos_offset;attribute vec4 a_data;attribute vec4 a_pixeloffset;attribute vec3 a_projected_pos;attribute float a_fade_opacity;uniform bool u_is_size_zoom_constant;uniform bool u_is_size_feature_constant;uniform highp float u_size_t;uniform highp float u_size;uniform mat4 u_matrix;uniform mat4 u_label_plane_matrix;uniform mat4 u_coord_matrix;uniform bool u_is_text;uniform bool u_pitch_with_map;uniform highp float u_pitch;uniform bool u_rotate_symbol;uniform highp float u_aspect_ratio;uniform highp float u_camera_to_center_distance;uniform float u_fade_change;uniform vec2 u_texsize;varying vec2 v_data0;varying vec3 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nvec2 a_pos=a_pos_offset.xy;vec2 a_offset=a_pos_offset.zw;vec2 a_tex=a_data.xy;vec2 a_size=a_data.zw;float a_size_min=floor(a_size[0]*0.5);vec2 a_pxoffset=a_pixeloffset.xy;highp float segment_angle=-a_projected_pos[2];float size;if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {size=mix(a_size_min,a_size[1],u_size_t)/128.0;} else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {size=a_size_min/128.0;} else {size=u_size;}float h=elevation(a_pos);vec4 projectedPoint=u_matrix*vec4(a_pos,h,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float distance_ratio=u_pitch_with_map ?\ncamera_to_anchor_distance/u_camera_to_center_distance :\nu_camera_to_center_distance/camera_to_anchor_distance;highp float perspective_ratio=clamp(\n0.5+0.5*distance_ratio,0.0,1.5);size*=perspective_ratio;float fontScale=u_is_text ? size/24.0 : size;highp float symbol_rotation=0.0;if (u_rotate_symbol) {vec4 offsetProjectedPoint=u_matrix*vec4(a_pos+vec2(1,0),h,1);vec2 a=projectedPoint.xy/projectedPoint.w;vec2 b=offsetProjectedPoint.xy/offsetProjectedPoint.w;symbol_rotation=atan((b.y-a.y)/u_aspect_ratio,b.x-a.x);}highp float angle_sin=sin(segment_angle+symbol_rotation);highp float angle_cos=cos(segment_angle+symbol_rotation);mat2 rotation_matrix=mat2(angle_cos,-1.0*angle_sin,angle_sin,angle_cos);vec4 projected_pos=u_label_plane_matrix*vec4(a_projected_pos.xy,h,1.0);float z=0.0;vec2 offset=rotation_matrix*(a_offset/32.0*fontScale+a_pxoffset);\n#ifdef PITCH_WITH_MAP_TERRAIN\nvec4 tile_pos=u_label_plane_matrix_inv*vec4(a_projected_pos.xy+offset,0.0,1.0);z=elevation(tile_pos.xy);\n#endif\nfloat occlusion_fade=occlusionFade(projectedPoint);gl_Position=mix(u_coord_matrix*vec4(projected_pos.xy/projected_pos.w+offset,z,1.0),AWAY,float(projectedPoint.w <=0.0 || occlusion_fade==0.0));float gamma_scale=gl_Position.w;vec2 fade_opacity=unpack_opacity(a_fade_opacity);float fade_change=fade_opacity[1] > 0.5 ? u_fade_change :-u_fade_change;float interpolated_fade_opacity=max(0.0,min(occlusion_fade,fade_opacity[0]+fade_change));v_data0=a_tex/u_texsize;v_data1=vec3(gamma_scale,size,interpolated_fade_opacity);}"; + +var symbolTextAndIconFrag = "#define SDF_PX 8.0\n#define SDF 1.0\n#define ICON 0.0\nuniform bool u_is_halo;uniform sampler2D u_texture;uniform sampler2D u_texture_icon;uniform highp float u_gamma_scale;uniform lowp float u_device_pixel_ratio;varying vec4 v_data0;varying vec4 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nfloat fade_opacity=v_data1[2];if (v_data1.w==ICON) {vec2 tex_icon=v_data0.zw;lowp float alpha=opacity*fade_opacity;gl_FragColor=texture2D(u_texture_icon,tex_icon)*alpha;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\nreturn;}vec2 tex=v_data0.xy;float EDGE_GAMMA=0.105/u_device_pixel_ratio;float gamma_scale=v_data1.x;float size=v_data1.y;float fontScale=size/24.0;lowp vec4 color=fill_color;highp float gamma=EDGE_GAMMA/(fontScale*u_gamma_scale);lowp float buff=(256.0-64.0)/256.0;if (u_is_halo) {color=halo_color;gamma=(halo_blur*1.19/SDF_PX+EDGE_GAMMA)/(fontScale*u_gamma_scale);buff=(6.0-halo_width/fontScale)/SDF_PX;}lowp float dist=texture2D(u_texture,tex).a;highp float gamma_scaled=gamma*gamma_scale;highp float alpha=smoothstep(buff-gamma_scaled,buff+gamma_scaled,dist);gl_FragColor=color*(alpha*opacity*fade_opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var symbolTextAndIconVert = "attribute vec4 a_pos_offset;attribute vec4 a_data;attribute vec3 a_projected_pos;attribute float a_fade_opacity;uniform bool u_is_size_zoom_constant;uniform bool u_is_size_feature_constant;uniform highp float u_size_t;uniform highp float u_size;uniform mat4 u_matrix;uniform mat4 u_label_plane_matrix;uniform mat4 u_coord_matrix;uniform bool u_is_text;uniform bool u_pitch_with_map;uniform highp float u_pitch;uniform bool u_rotate_symbol;uniform highp float u_aspect_ratio;uniform highp float u_camera_to_center_distance;uniform float u_fade_change;uniform vec2 u_texsize;uniform vec2 u_texsize_icon;varying vec4 v_data0;varying vec4 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nvec2 a_pos=a_pos_offset.xy;vec2 a_offset=a_pos_offset.zw;vec2 a_tex=a_data.xy;vec2 a_size=a_data.zw;float a_size_min=floor(a_size[0]*0.5);float is_sdf=a_size[0]-2.0*a_size_min;highp float segment_angle=-a_projected_pos[2];float size;if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {size=mix(a_size_min,a_size[1],u_size_t)/128.0;} else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {size=a_size_min/128.0;} else {size=u_size;}float h=elevation(a_pos);vec4 projectedPoint=u_matrix*vec4(a_pos,h,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float distance_ratio=u_pitch_with_map ?\ncamera_to_anchor_distance/u_camera_to_center_distance :\nu_camera_to_center_distance/camera_to_anchor_distance;highp float perspective_ratio=clamp(\n0.5+0.5*distance_ratio,0.0,1.5);size*=perspective_ratio;float fontScale=size/24.0;highp float symbol_rotation=0.0;if (u_rotate_symbol) {vec4 offsetProjectedPoint=u_matrix*vec4(a_pos+vec2(1,0),h,1);vec2 a=projectedPoint.xy/projectedPoint.w;vec2 b=offsetProjectedPoint.xy/offsetProjectedPoint.w;symbol_rotation=atan((b.y-a.y)/u_aspect_ratio,b.x-a.x);}highp float angle_sin=sin(segment_angle+symbol_rotation);highp float angle_cos=cos(segment_angle+symbol_rotation);mat2 rotation_matrix=mat2(angle_cos,-1.0*angle_sin,angle_sin,angle_cos);vec4 projected_pos=u_label_plane_matrix*vec4(a_projected_pos.xy,h,1.0);float z=0.0;vec2 offset=rotation_matrix*(a_offset/32.0*fontScale);\n#ifdef PITCH_WITH_MAP_TERRAIN\nvec4 tile_pos=u_label_plane_matrix_inv*vec4(a_projected_pos.xy+offset,0.0,1.0);z=elevation(tile_pos.xy);\n#endif\nfloat occlusion_fade=occlusionFade(projectedPoint);gl_Position=mix(u_coord_matrix*vec4(projected_pos.xy/projected_pos.w+offset,z,1.0),AWAY,float(projectedPoint.w <=0.0 || occlusion_fade==0.0));float gamma_scale=gl_Position.w;vec2 fade_opacity=unpack_opacity(a_fade_opacity);float fade_change=fade_opacity[1] > 0.5 ? u_fade_change :-u_fade_change;float interpolated_fade_opacity=max(0.0,min(occlusion_fade,fade_opacity[0]+fade_change));v_data0.xy=a_tex/u_texsize;v_data0.zw=a_tex/u_texsize_icon;v_data1=vec4(gamma_scale,size,interpolated_fade_opacity,is_sdf);}"; + +var skyboxFrag = "\nvarying lowp vec3 v_uv;uniform lowp samplerCube u_cubemap;uniform lowp float u_opacity;uniform highp float u_temporal_offset;uniform highp vec3 u_sun_direction;highp vec3 hash(highp vec2 p) {highp vec3 p3=fract(vec3(p.xyx)*vec3(443.8975,397.2973,491.1871));p3+=dot(p3,p3.yxz+19.19);return fract(vec3((p3.x+p3.y)*p3.z,(p3.x+p3.z)*p3.y,(p3.y+p3.z)*p3.x));}vec3 dither(vec3 color,highp vec2 seed) {vec3 rnd=hash(seed)+hash(seed+0.59374)-0.5;color.rgb+=rnd/255.0;return color;}float sun_disk(highp vec3 ray_direction,highp vec3 sun_direction) {highp float cos_angle=dot(normalize(ray_direction),sun_direction);const highp float cos_sun_angular_diameter=0.99996192306;const highp float smoothstep_delta=1e-5;return smoothstep(\ncos_sun_angular_diameter-smoothstep_delta,cos_sun_angular_diameter+smoothstep_delta,cos_angle);}float map(float value,float start,float end,float new_start,float new_end) {return ((value-start)*(new_end-new_start))/(end-start)+new_start;}void main() {vec3 uv=v_uv;const float y_bias=0.015;uv.y+=y_bias;uv.y=pow(abs(uv.y),1.0/5.0);uv.y=map(uv.y,0.0,1.0,-1.0,1.0);vec3 sky_color=textureCube(u_cubemap,uv).rgb;sky_color.rgb=dither(sky_color.rgb,gl_FragCoord.xy+u_temporal_offset);sky_color+=0.1*sun_disk(v_uv,u_sun_direction);gl_FragColor=vec4(sky_color*u_opacity,u_opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var skyboxGradientFrag = "varying highp vec3 v_uv;uniform lowp sampler2D u_color_ramp;uniform lowp vec3 u_center_direction;uniform lowp float u_radius;uniform lowp float u_opacity;uniform highp float u_temporal_offset;highp vec3 hash(highp vec2 p) {highp vec3 p3=fract(vec3(p.xyx)*vec3(443.8975,397.2973,491.1871));p3+=dot(p3,p3.yxz+19.19);return fract(vec3((p3.x+p3.y)*p3.z,(p3.x+p3.z)*p3.y,(p3.y+p3.z)*p3.x));}vec3 dither(vec3 color,highp vec2 seed) {vec3 rnd=hash(seed)+hash(seed+0.59374)-0.5;color.rgb+=rnd/255.0;return color;}void main() {float progress=acos(dot(normalize(v_uv),u_center_direction))/u_radius;vec4 color=texture2D(u_color_ramp,vec2(progress,0.5))*u_opacity;color.rgb=dither(color.rgb,gl_FragCoord.xy+u_temporal_offset);gl_FragColor=color;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var skyboxVert = "attribute highp vec3 a_pos_3f;uniform lowp mat4 u_matrix;varying highp vec3 v_uv;void main() {const mat3 half_neg_pi_around_x=mat3(1.0,0.0, 0.0,0.0,0.0,-1.0,0.0,1.0, 0.0);v_uv=half_neg_pi_around_x*a_pos_3f;vec4 pos=u_matrix*vec4(a_pos_3f,1.0);gl_Position=pos.xyww;}"; + +var terrainRasterFrag = "uniform sampler2D u_image0;varying vec2 v_pos0;void main() {gl_FragColor=texture2D(u_image0,v_pos0);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}"; + +var terrainRasterVert = "uniform mat4 u_matrix;uniform float u_skirt_height;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos0;const float skirtOffset=24575.0;void main() {v_pos0=a_texture_pos/8192.0;float skirt=float(a_pos.x >=skirtOffset);float elevation=elevation(a_texture_pos)-skirt*u_skirt_height;vec2 decodedPos=a_pos-vec2(skirt*skirtOffset,0.0);gl_Position=u_matrix*vec4(decodedPos,elevation,1.0);}"; + +var terrainDepthFrag = "#ifdef GL_ES\nprecision highp float;\n#endif\nvec4 pack_depth(float ndc_z) {float depth=ndc_z*0.5+0.5;const vec4 bit_shift=vec4(256.0*256.0*256.0,256.0*256.0,256.0,1.0);const vec4 bit_mask =vec4(0.0,1.0/256.0,1.0/256.0,1.0/256.0);vec4 res=fract(depth*bit_shift);res-=res.xxyz*bit_mask;return res;}varying float v_depth;void main() {gl_FragColor=pack_depth(v_depth);}"; + +var terrainDepthVert = "uniform mat4 u_matrix;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying float v_depth;void main() {float elevation=elevation(a_texture_pos);gl_Position=u_matrix*vec4(a_pos,elevation,1.0);v_depth=gl_Position.z/gl_Position.w;}"; + +var preludeTerrainVert = "\n#define ELEVATION_SCALE 7.3\n#ifdef TERRAIN\nuniform sampler2D u_dem;uniform sampler2D u_dem_prev;uniform vec4 u_dem_unpack;uniform vec2 u_dem_tl;uniform vec2 u_dem_tl_prev;uniform float u_dem_scale;uniform float u_dem_scale_prev;uniform float u_dem_size;uniform float u_dem_lerp;uniform float u_exaggeration;uniform float u_meter_to_dem;uniform mat4 u_label_plane_matrix_inv;uniform sampler2D u_depth;uniform vec2 u_depth_size_inv;vec4 tileUvToDemSample(vec2 uv,float dem_size,float dem_scale,vec2 dem_tl) {vec2 pos=dem_size*(uv*dem_scale+dem_tl)+1.0;vec2 f=fract(pos);return vec4((pos-f+0.5)/(dem_size+2.0),f);}float decodeElevation(vec4 v) {return dot(vec4(v.xyz*255.0,-1.0),u_dem_unpack);}float currentElevation(vec2 apos) {float dd=1.0/(u_dem_size+2.0);vec4 r=tileUvToDemSample(apos/8192.0,u_dem_size,u_dem_scale,u_dem_tl);vec2 pos=r.xy;vec2 f=r.zw;float tl=decodeElevation(texture2D(u_dem,pos));float tr=decodeElevation(texture2D(u_dem,pos+vec2(dd,0.0)));float bl=decodeElevation(texture2D(u_dem,pos+vec2(0.0,dd)));float br=decodeElevation(texture2D(u_dem,pos+vec2(dd,dd)));return u_exaggeration*mix(mix(tl,tr,f.x),mix(bl,br,f.x),f.y);}float prevElevation(vec2 apos) {float dd=1.0/(u_dem_size+2.0);vec4 r=tileUvToDemSample(apos/8192.0,u_dem_size,u_dem_scale_prev,u_dem_tl_prev);vec2 pos=r.xy;vec2 f=r.zw;float tl=decodeElevation(texture2D(u_dem_prev,pos));float tr=decodeElevation(texture2D(u_dem_prev,pos+vec2(dd,0.0)));float bl=decodeElevation(texture2D(u_dem_prev,pos+vec2(0.0,dd)));float br=decodeElevation(texture2D(u_dem_prev,pos+vec2(dd,dd)));return u_exaggeration*mix(mix(tl,tr,f.x),mix(bl,br,f.x),f.y);}\n#ifdef TERRAIN_VERTEX_MORPHING\nfloat elevation(vec2 apos) {float nextElevation=currentElevation(apos);float prevElevation=prevElevation(apos);return mix(prevElevation,nextElevation,u_dem_lerp);}\n#else\nfloat elevation(vec2 apos) {return currentElevation(apos);}\n#endif\nfloat unpack_depth(vec4 rgba_depth)\n{const vec4 bit_shift=vec4(1.0/(256.0*256.0*256.0),1.0/(256.0*256.0),1.0/256.0,1.0);return dot(rgba_depth,bit_shift)*2.0-1.0;}bool isOccluded(vec4 frag) {vec3 coord=frag.xyz/frag.w;float depth=unpack_depth(texture2D(u_depth,(coord.xy+1.0)*0.5));return coord.z > depth+0.0005;}float occlusionFade(vec4 frag) {vec3 coord=frag.xyz/frag.w;vec3 df=vec3(5.0*u_depth_size_inv,0.0);vec2 uv=0.5*coord.xy+0.5;vec4 depth=vec4(\nunpack_depth(texture2D(u_depth,uv-df.xz)),unpack_depth(texture2D(u_depth,uv+df.xz)),unpack_depth(texture2D(u_depth,uv-df.zy)),unpack_depth(texture2D(u_depth,uv+df.zy))\n);return dot(vec4(0.25),vec4(1.0)-clamp(300.0*(vec4(coord.z-0.001)-depth),0.0,1.0));}vec4 fourSample(vec2 pos,vec2 off) {vec4 demtl=vec4(texture2D(u_dem,pos).xyz*255.0,-1.0);float tl=dot(demtl,u_dem_unpack);vec4 demtr=vec4(texture2D(u_dem,pos+vec2(off.x,0.0)).xyz*255.0,-1.0);float tr=dot(demtr,u_dem_unpack);vec4 dembl=vec4(texture2D(u_dem,pos+vec2(0.0,off.y)).xyz*255.0,-1.0);float bl=dot(dembl,u_dem_unpack);vec4 dembr=vec4(texture2D(u_dem,pos+off).xyz*255.0,-1.0);float br=dot(dembr,u_dem_unpack);return vec4(tl,tr,bl,br);}float flatElevation(vec2 pack) {vec2 apos=floor(pack/8.0);vec2 span=10.0*(pack-apos*8.0);vec2 uvTex=(apos-vec2(1.0,1.0))/8190.0;float size=u_dem_size+2.0;float dd=1.0/size;vec2 pos=u_dem_size*(uvTex*u_dem_scale+u_dem_tl)+1.0;vec2 f=fract(pos);pos=(pos-f+0.5)*dd;vec4 h=fourSample(pos,vec2(dd));float z=mix(mix(h.x,h.y,f.x),mix(h.z,h.w,f.x),f.y);vec2 w=floor(0.5*(span*u_meter_to_dem-1.0));vec2 d=dd*w;vec4 bounds=vec4(d,vec2(1.0)-d);h=fourSample(pos-d,2.0*d+vec2(dd));vec4 diff=abs(h.xzxy-h.ywzw);vec2 slope=min(vec2(0.25),u_meter_to_dem*0.5*(diff.xz+diff.yw)/(2.0*w+vec2(1.0)));vec2 fix=slope*span;float base=z+max(fix.x,fix.y);return u_exaggeration*base;}float elevationFromUint16(float word) {return u_exaggeration*word/ELEVATION_SCALE;}\n#else\nfloat elevation(vec2 pos) { return 0.0; }bool isOccluded(vec4 frag) { return false; }float occlusionFade(vec4 frag) { return 1.0; }\n#endif"; + +var skyboxCaptureFrag = "\nvarying highp vec3 v_position;uniform highp float u_sun_intensity;uniform highp float u_luminance;uniform lowp vec3 u_sun_direction;uniform highp vec4 u_color_tint_r;uniform highp vec4 u_color_tint_m;\n#ifdef GL_ES\nprecision highp float;\n#endif\n#define BETA_R vec3(5.5e-6,13.0e-6,22.4e-6)\n#define BETA_M vec3(21e-6,21e-6,21e-6)\n#define MIE_G 0.76\n#define DENSITY_HEIGHT_SCALE_R 8000.0\n#define DENSITY_HEIGHT_SCALE_M 1200.0\n#define PLANET_RADIUS 6360e3\n#define ATMOSPHERE_RADIUS 6420e3\n#define SAMPLE_STEPS 10\n#define DENSITY_STEPS 4\nfloat ray_sphere_exit(vec3 orig,vec3 dir,float radius) {float a=dot(dir,dir);float b=2.0*dot(dir,orig);float c=dot(orig,orig)-radius*radius;float d=sqrt(b*b-4.0*a*c);return (-b+d)/(2.0*a);}vec3 extinction(vec2 density) {return exp(-vec3(BETA_R*u_color_tint_r.a*density.x+BETA_M*u_color_tint_m.a*density.y));}vec2 local_density(vec3 point) {float height=max(length(point)-PLANET_RADIUS,0.0);float exp_r=exp(-height/DENSITY_HEIGHT_SCALE_R);float exp_m=exp(-height/DENSITY_HEIGHT_SCALE_M);return vec2(exp_r,exp_m);}float phase_ray(float cos_angle) {return (3.0/(16.0*PI))*(1.0+cos_angle*cos_angle);}float phase_mie(float cos_angle) {return (3.0/(8.0*PI))*((1.0-MIE_G*MIE_G)*(1.0+cos_angle*cos_angle))/((2.0+MIE_G*MIE_G)*pow(1.0+MIE_G*MIE_G-2.0*MIE_G*cos_angle,1.5));}vec2 density_to_atmosphere(vec3 point,vec3 light_dir) {float ray_len=ray_sphere_exit(point,light_dir,ATMOSPHERE_RADIUS);float step_len=ray_len/float(DENSITY_STEPS);vec2 density_point_to_atmosphere=vec2(0.0);for (int i=0; i < DENSITY_STEPS;++i) {vec3 point_on_ray=point+light_dir*((float(i)+0.5)*step_len);density_point_to_atmosphere+=local_density(point_on_ray)*step_len;;}return density_point_to_atmosphere;}vec3 atmosphere(vec3 ray_dir,vec3 sun_direction,float sun_intensity) {vec2 density_orig_to_point=vec2(0.0);vec3 scatter_r=vec3(0.0);vec3 scatter_m=vec3(0.0);vec3 origin=vec3(0.0,PLANET_RADIUS,0.0);float ray_len=ray_sphere_exit(origin,ray_dir,ATMOSPHERE_RADIUS);float step_len=ray_len/float(SAMPLE_STEPS);for (int i=0; i < SAMPLE_STEPS;++i) {vec3 point_on_ray=origin+ray_dir*((float(i)+0.5)*step_len);vec2 density=local_density(point_on_ray)*step_len;density_orig_to_point+=density;vec2 density_point_to_atmosphere=density_to_atmosphere(point_on_ray,sun_direction);vec2 density_orig_to_atmosphere=density_orig_to_point+density_point_to_atmosphere;vec3 extinction=extinction(density_orig_to_atmosphere);scatter_r+=density.x*extinction;scatter_m+=density.y*extinction;}float cos_angle=dot(ray_dir,sun_direction);float phase_r=phase_ray(cos_angle);float phase_m=phase_mie(cos_angle);vec3 beta_r=BETA_R*u_color_tint_r.rgb*u_color_tint_r.a;vec3 beta_m=BETA_M*u_color_tint_m.rgb*u_color_tint_m.a;return (scatter_r*phase_r*beta_r+scatter_m*phase_m*beta_m)*sun_intensity;}const float A=0.15;const float B=0.50;const float C=0.10;const float D=0.20;const float E=0.02;const float F=0.30;vec3 uncharted2_tonemap(vec3 x) {return ((x*(A*x+C*B)+D*E)/(x*(A*x+B)+D*F))-E/F;}void main() {vec3 ray_direction=v_position;ray_direction.y=pow(ray_direction.y,5.0);const float y_bias=0.015;ray_direction.y+=y_bias;vec3 color=atmosphere(normalize(ray_direction),u_sun_direction,u_sun_intensity);float white_scale=1.0748724675633854;color=uncharted2_tonemap((log2(2.0/pow(u_luminance,4.0)))*color)*white_scale;gl_FragColor=vec4(color,1.0);}"; + +var skyboxCaptureVert = "attribute highp vec3 a_pos_3f;uniform mat3 u_matrix_3f;varying highp vec3 v_position;float map(float value,float start,float end,float new_start,float new_end) {return ((value-start)*(new_end-new_start))/(end-start)+new_start;}void main() {vec4 pos=vec4(u_matrix_3f*a_pos_3f,1.0);v_position=pos.xyz;v_position.y*=-1.0;v_position.y=map(v_position.y,-1.0,1.0,0.0,1.0);gl_Position=vec4(a_pos_3f.xy,0.0,1.0);}"; + +let preludeTerrain = {}; +preludeTerrain = compile('', preludeTerrainVert, true); +const prelude = compile(preludeFrag, preludeVert); +const background = compile(backgroundFrag, backgroundVert); +const backgroundPattern = compile(backgroundPatternFrag, backgroundPatternVert); +const circle = compile(circleFrag, circleVert); +const clippingMask = compile(clippingMaskFrag, clippingMaskVert); +const heatmap = compile(heatmapFrag, heatmapVert); +const heatmapTexture = compile(heatmapTextureFrag, heatmapTextureVert); +const collisionBox = compile(collisionBoxFrag, collisionBoxVert); +const collisionCircle = compile(collisionCircleFrag, collisionCircleVert); +const debug = compile(debugFrag, debugVert); +const fill = compile(fillFrag, fillVert); +const fillOutline = compile(fillOutlineFrag, fillOutlineVert); +const fillOutlinePattern = compile(fillOutlinePatternFrag, fillOutlinePatternVert); +const fillPattern = compile(fillPatternFrag, fillPatternVert); +const fillExtrusion = compile(fillExtrusionFrag, fillExtrusionVert); +const fillExtrusionPattern = compile(fillExtrusionPatternFrag, fillExtrusionPatternVert); +const hillshadePrepare = compile(hillshadePrepareFrag, hillshadePrepareVert); +const hillshade = compile(hillshadeFrag, hillshadeVert); +const line = compile(lineFrag, lineVert); +const lineGradient = compile(lineGradientFrag, lineGradientVert); +const linePattern = compile(linePatternFrag, linePatternVert); +const lineSDF = compile(lineSDFFrag, lineSDFVert); +const raster = compile(rasterFrag, rasterVert); +const symbolIcon = compile(symbolIconFrag, symbolIconVert); +const symbolSDF = compile(symbolSDFFrag, symbolSDFVert); +const symbolTextAndIcon = compile(symbolTextAndIconFrag, symbolTextAndIconVert); +const terrainRaster = compile(terrainRasterFrag, terrainRasterVert); +const terrainDepth = compile(terrainDepthFrag, terrainDepthVert); +const skybox = compile(skyboxFrag, skyboxVert); +const skyboxGradient = compile(skyboxGradientFrag, skyboxVert); +const skyboxCapture = compile(skyboxCaptureFrag, skyboxCaptureVert); +function compile(fragmentSource, vertexSource, isPreludeTerrainShader) { + const re = /#pragma mapbox: ([\w]+) ([\w]+) ([\w]+) ([\w]+)/g; + const staticAttributes = vertexSource.match(/attribute (highp |mediump |lowp )?([\w]+) ([\w]+)/g); + const fragmentUniforms = fragmentSource.match(/uniform (highp |mediump |lowp )?([\w]+) ([\w]+)([\s]*)([\w]*)/g); + const vertexUniforms = vertexSource.match(/uniform (highp |mediump |lowp )?([\w]+) ([\w]+)([\s]*)([\w]*)/g); + let staticUniforms = vertexUniforms ? vertexUniforms.concat(fragmentUniforms) : fragmentUniforms; + if (!isPreludeTerrainShader) { + staticUniforms = preludeTerrain.staticUniforms.concat(staticUniforms); + } + const fragmentPragmas = {}; + fragmentSource = fragmentSource.replace(re, (match, operation, precision, type, name) => { + fragmentPragmas[name] = true; + if (operation === 'define') { + return ` +#ifndef HAS_UNIFORM_u_${ name } +varying ${ precision } ${ type } ${ name }; +#else +uniform ${ precision } ${ type } u_${ name }; +#endif +`; + } else { + return ` +#ifdef HAS_UNIFORM_u_${ name } + ${ precision } ${ type } ${ name } = u_${ name }; +#endif +`; + } + }); + vertexSource = vertexSource.replace(re, (match, operation, precision, type, name) => { + const attrType = type === 'float' ? 'vec2' : 'vec4'; + const unpackType = name.match(/color/) ? 'color' : attrType; + if (fragmentPragmas[name]) { + if (operation === 'define') { + return ` +#ifndef HAS_UNIFORM_u_${ name } +uniform lowp float u_${ name }_t; +attribute ${ precision } ${ attrType } a_${ name }; +varying ${ precision } ${ type } ${ name }; +#else +uniform ${ precision } ${ type } u_${ name }; +#endif +`; + } else { + if (unpackType === 'vec4') { + return ` +#ifndef HAS_UNIFORM_u_${ name } + ${ name } = a_${ name }; +#else + ${ precision } ${ type } ${ name } = u_${ name }; +#endif +`; + } else { + return ` +#ifndef HAS_UNIFORM_u_${ name } + ${ name } = unpack_mix_${ unpackType }(a_${ name }, u_${ name }_t); +#else + ${ precision } ${ type } ${ name } = u_${ name }; +#endif +`; + } + } + } else { + if (operation === 'define') { + return ` +#ifndef HAS_UNIFORM_u_${ name } +uniform lowp float u_${ name }_t; +attribute ${ precision } ${ attrType } a_${ name }; +#else +uniform ${ precision } ${ type } u_${ name }; +#endif +`; + } else { + if (unpackType === 'vec4') { + return ` +#ifndef HAS_UNIFORM_u_${ name } + ${ precision } ${ type } ${ name } = a_${ name }; +#else + ${ precision } ${ type } ${ name } = u_${ name }; +#endif +`; + } else { + return ` +#ifndef HAS_UNIFORM_u_${ name } + ${ precision } ${ type } ${ name } = unpack_mix_${ unpackType }(a_${ name }, u_${ name }_t); +#else + ${ precision } ${ type } ${ name } = u_${ name }; +#endif +`; + } + } + } + }); + return { + fragmentSource, + vertexSource, + staticAttributes, + staticUniforms + }; +} + +var shaders = /*#__PURE__*/Object.freeze({ +__proto__: null, +get preludeTerrain () { return preludeTerrain; }, +prelude: prelude, +background: background, +backgroundPattern: backgroundPattern, +circle: circle, +clippingMask: clippingMask, +heatmap: heatmap, +heatmapTexture: heatmapTexture, +collisionBox: collisionBox, +collisionCircle: collisionCircle, +debug: debug, +fill: fill, +fillOutline: fillOutline, +fillOutlinePattern: fillOutlinePattern, +fillPattern: fillPattern, +fillExtrusion: fillExtrusion, +fillExtrusionPattern: fillExtrusionPattern, +hillshadePrepare: hillshadePrepare, +hillshade: hillshade, +line: line, +lineGradient: lineGradient, +linePattern: linePattern, +lineSDF: lineSDF, +raster: raster, +symbolIcon: symbolIcon, +symbolSDF: symbolSDF, +symbolTextAndIcon: symbolTextAndIcon, +terrainRaster: terrainRaster, +terrainDepth: terrainDepth, +skybox: skybox, +skyboxGradient: skyboxGradient, +skyboxCapture: skyboxCapture +}); + +class VertexArrayObject { + constructor() { + this.boundProgram = null; + this.boundLayoutVertexBuffer = null; + this.boundPaintVertexBuffers = []; + this.boundIndexBuffer = null; + this.boundVertexOffset = null; + this.boundDynamicVertexBuffer = null; + this.vao = null; + } + bind(context, program, layoutVertexBuffer, paintVertexBuffers, indexBuffer, vertexOffset, dynamicVertexBuffer, dynamicVertexBuffer2) { + this.context = context; + let paintBuffersDiffer = this.boundPaintVertexBuffers.length !== paintVertexBuffers.length; + for (let i = 0; !paintBuffersDiffer && i < paintVertexBuffers.length; i++) { + if (this.boundPaintVertexBuffers[i] !== paintVertexBuffers[i]) { + paintBuffersDiffer = true; + } + } + const isFreshBindRequired = !this.vao || this.boundProgram !== program || this.boundLayoutVertexBuffer !== layoutVertexBuffer || paintBuffersDiffer || this.boundIndexBuffer !== indexBuffer || this.boundVertexOffset !== vertexOffset || this.boundDynamicVertexBuffer !== dynamicVertexBuffer || this.boundDynamicVertexBuffer2 !== dynamicVertexBuffer2; + if (!context.extVertexArrayObject || isFreshBindRequired) { + this.freshBind(program, layoutVertexBuffer, paintVertexBuffers, indexBuffer, vertexOffset, dynamicVertexBuffer, dynamicVertexBuffer2); + } else { + context.bindVertexArrayOES.set(this.vao); + if (dynamicVertexBuffer) { + dynamicVertexBuffer.bind(); + } + if (indexBuffer && indexBuffer.dynamicDraw) { + indexBuffer.bind(); + } + if (dynamicVertexBuffer2) { + dynamicVertexBuffer2.bind(); + } + } + } + freshBind(program, layoutVertexBuffer, paintVertexBuffers, indexBuffer, vertexOffset, dynamicVertexBuffer, dynamicVertexBuffer2) { + let numPrevAttributes; + const numNextAttributes = program.numAttributes; + const context = this.context; + const gl = context.gl; + if (context.extVertexArrayObject) { + if (this.vao) + this.destroy(); + this.vao = context.extVertexArrayObject.createVertexArrayOES(); + context.bindVertexArrayOES.set(this.vao); + numPrevAttributes = 0; + this.boundProgram = program; + this.boundLayoutVertexBuffer = layoutVertexBuffer; + this.boundPaintVertexBuffers = paintVertexBuffers; + this.boundIndexBuffer = indexBuffer; + this.boundVertexOffset = vertexOffset; + this.boundDynamicVertexBuffer = dynamicVertexBuffer; + this.boundDynamicVertexBuffer2 = dynamicVertexBuffer2; + } else { + numPrevAttributes = context.currentNumAttributes || 0; + for (let i = numNextAttributes; i < numPrevAttributes; i++) { + gl.disableVertexAttribArray(i); + } + } + layoutVertexBuffer.enableAttributes(gl, program); + for (const vertexBuffer of paintVertexBuffers) { + vertexBuffer.enableAttributes(gl, program); + } + if (dynamicVertexBuffer) { + dynamicVertexBuffer.enableAttributes(gl, program); + } + if (dynamicVertexBuffer2) { + dynamicVertexBuffer2.enableAttributes(gl, program); + } + layoutVertexBuffer.bind(); + layoutVertexBuffer.setVertexAttribPointers(gl, program, vertexOffset); + for (const vertexBuffer of paintVertexBuffers) { + vertexBuffer.bind(); + vertexBuffer.setVertexAttribPointers(gl, program, vertexOffset); + } + if (dynamicVertexBuffer) { + dynamicVertexBuffer.bind(); + dynamicVertexBuffer.setVertexAttribPointers(gl, program, vertexOffset); + } + if (indexBuffer) { + indexBuffer.bind(); + } + if (dynamicVertexBuffer2) { + dynamicVertexBuffer2.bind(); + dynamicVertexBuffer2.setVertexAttribPointers(gl, program, vertexOffset); + } + context.currentNumAttributes = numNextAttributes; + } + destroy() { + if (this.vao) { + this.context.extVertexArrayObject.deleteVertexArrayOES(this.vao); + this.vao = null; + } + } +} + +const hillshadeUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_latrange': new ref_properties.Uniform2f(context, locations.u_latrange), + 'u_light': new ref_properties.Uniform2f(context, locations.u_light), + 'u_shadow': new ref_properties.UniformColor(context, locations.u_shadow), + 'u_highlight': new ref_properties.UniformColor(context, locations.u_highlight), + 'u_accent': new ref_properties.UniformColor(context, locations.u_accent) +}); +const hillshadePrepareUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_dimension': new ref_properties.Uniform2f(context, locations.u_dimension), + 'u_zoom': new ref_properties.Uniform1f(context, locations.u_zoom), + 'u_unpack': new ref_properties.Uniform4f(context, locations.u_unpack) +}); +const hillshadeUniformValues = (painter, tile, layer, matrix) => { + const shadow = layer.paint.get('hillshade-shadow-color'); + const highlight = layer.paint.get('hillshade-highlight-color'); + const accent = layer.paint.get('hillshade-accent-color'); + let azimuthal = layer.paint.get('hillshade-illumination-direction') * (Math.PI / 180); + if (layer.paint.get('hillshade-illumination-anchor') === 'viewport') { + azimuthal -= painter.transform.angle; + } + const align = !painter.options.moving; + return { + 'u_matrix': matrix ? matrix : painter.transform.calculatePosMatrix(tile.tileID.toUnwrapped(), align), + 'u_image': 0, + 'u_latrange': getTileLatRange(painter, tile.tileID), + 'u_light': [ + layer.paint.get('hillshade-exaggeration'), + azimuthal + ], + 'u_shadow': shadow, + 'u_highlight': highlight, + 'u_accent': accent + }; +}; +const hillshadeUniformPrepareValues = (tileID, dem) => { + const stride = dem.stride; + const matrix = ref_properties.create(); + ref_properties.ortho(matrix, 0, ref_properties.EXTENT, -ref_properties.EXTENT, 0, 0, 1); + ref_properties.translate(matrix, matrix, [ + 0, + -ref_properties.EXTENT, + 0 + ]); + return { + 'u_matrix': matrix, + 'u_image': 1, + 'u_dimension': [ + stride, + stride + ], + 'u_zoom': tileID.overscaledZ, + 'u_unpack': dem.unpackVector + }; +}; +function getTileLatRange(painter, tileID) { + const tilesAtZoom = Math.pow(2, tileID.canonical.z); + const y = tileID.canonical.y; + return [ + new ref_properties.MercatorCoordinate(0, y / tilesAtZoom).toLngLat().lat, + new ref_properties.MercatorCoordinate(0, (y + 1) / tilesAtZoom).toLngLat().lat + ]; +} + +function drawHillshade(painter, sourceCache, layer, tileIDs) { + if (painter.renderPass !== 'offscreen' && painter.renderPass !== 'translucent') + return; + const context = painter.context; + const depthMode = painter.depthModeForSublayer(0, ref_properties.DepthMode.ReadOnly); + const colorMode = painter.colorModeForRenderPass(); + const renderingToTexture = painter.terrain && painter.terrain.renderingToTexture; + const [stencilModes, coords] = painter.renderPass === 'translucent' && !renderingToTexture ? painter.stencilConfigForOverlap(tileIDs) : [ + {}, + tileIDs + ]; + for (const coord of coords) { + const tile = sourceCache.getTile(coord); + if (tile.needsHillshadePrepare && painter.renderPass === 'offscreen') { + prepareHillshade(painter, tile, layer, depthMode, ref_properties.StencilMode.disabled, colorMode); + } else if (painter.renderPass === 'translucent') { + const stencilMode = renderingToTexture && painter.terrain ? painter.terrain.stencilModeForRTTOverlap(coord) : stencilModes[coord.overscaledZ]; + renderHillshade(painter, coord, tile, layer, depthMode, stencilMode, colorMode); + } + } + context.viewport.set([ + 0, + 0, + painter.width, + painter.height + ]); +} +function renderHillshade(painter, coord, tile, layer, depthMode, stencilMode, colorMode) { + const context = painter.context; + const gl = context.gl; + const fbo = tile.fbo; + if (!fbo) + return; + painter.prepareDrawTile(coord); + const program = painter.useProgram('hillshade'); + context.activeTexture.set(gl.TEXTURE0); + gl.bindTexture(gl.TEXTURE_2D, fbo.colorAttachment.get()); + const uniformValues = hillshadeUniformValues(painter, tile, layer, painter.terrain ? coord.posMatrix : null); + program.draw(context, gl.TRIANGLES, depthMode, stencilMode, colorMode, ref_properties.CullFaceMode.disabled, uniformValues, layer.id, painter.rasterBoundsBuffer, painter.quadTriangleIndexBuffer, painter.rasterBoundsSegments); +} +function prepareDEMTexture(painter, tile, dem) { + if (!tile.needsDEMTextureUpload) + return; + const context = painter.context; + const gl = context.gl; + context.pixelStoreUnpackPremultiplyAlpha.set(false); + const textureStride = dem.stride; + tile.demTexture = tile.demTexture || painter.getTileTexture(textureStride); + const pixelData = dem.getPixels(); + if (tile.demTexture) { + tile.demTexture.update(pixelData, { premultiply: false }); + } else { + tile.demTexture = new ref_properties.Texture(context, pixelData, gl.RGBA, { premultiply: false }); + } + tile.needsDEMTextureUpload = false; +} +function prepareHillshade(painter, tile, layer, depthMode, stencilMode, colorMode) { + const context = painter.context; + const gl = context.gl; + if (!tile.dem) + return; + const dem = tile.dem; + context.activeTexture.set(gl.TEXTURE1); + prepareDEMTexture(painter, tile, dem); + if (!tile.demTexture) + return; + tile.demTexture.bind(gl.NEAREST, gl.CLAMP_TO_EDGE); + const tileSize = dem.dim; + context.activeTexture.set(gl.TEXTURE0); + let fbo = tile.fbo; + if (!fbo) { + const renderTexture = new ref_properties.Texture(context, { + width: tileSize, + height: tileSize, + data: null + }, gl.RGBA); + renderTexture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + fbo = tile.fbo = context.createFramebuffer(tileSize, tileSize, true); + fbo.colorAttachment.set(renderTexture.texture); + } + context.bindFramebuffer.set(fbo.framebuffer); + context.viewport.set([ + 0, + 0, + tileSize, + tileSize + ]); + painter.useProgram('hillshadePrepare').draw(context, gl.TRIANGLES, depthMode, stencilMode, colorMode, ref_properties.CullFaceMode.disabled, hillshadeUniformPrepareValues(tile.tileID, dem), layer.id, painter.rasterBoundsBuffer, painter.quadTriangleIndexBuffer, painter.rasterBoundsSegments); + tile.needsHillshadePrepare = false; +} + +const terrainRasterUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_image0': new ref_properties.Uniform1i(context, locations.u_image0), + 'u_skirt_height': new ref_properties.Uniform1f(context, locations.u_skirt_height) +}); +const terrainRasterUniformValues = (matrix, skirtHeight) => ({ + 'u_matrix': matrix, + 'u_image0': 0, + 'u_skirt_height': skirtHeight +}); + +class VertexMorphing { + constructor() { + this.operations = {}; + } + newMorphing(key, from, to, now, duration) { + if (key in this.operations) { + const op = this.operations[key]; + if (op.to.tileID.key !== to.tileID.key) + op.queued = to; + } else { + this.operations[key] = { + startTime: now, + phase: 0, + duration, + from, + to, + queued: null + }; + } + } + getMorphValuesForProxy(key) { + if (!(key in this.operations)) + return null; + const op = this.operations[key]; + const from = op.from; + const to = op.to; + return { + from, + to, + phase: op.phase + }; + } + update(now) { + for (const key in this.operations) { + const op = this.operations[key]; + op.phase = (now - op.startTime) / op.duration; + while (op.phase >= 1 || !this._validOp(op)) { + if (!this._nextOp(op, now)) { + delete this.operations[key]; + break; + } + } + } + } + _nextOp(op, now) { + if (!op.queued) + return false; + op.from = op.to; + op.to = op.queued; + op.queued = null; + op.phase = 0; + op.startTime = now; + return true; + } + _validOp(op) { + return op.from.hasData() && op.to.hasData(); + } +} +function demTileChanged(prev, next) { + if (prev == null || next == null) + return false; + if (!prev.hasData() || !next.hasData()) + return false; + if (prev.demTexture == null || next.demTexture == null) + return false; + return prev.tileID.key !== next.tileID.key; +} +const vertexMorphing = new VertexMorphing(); +const SHADER_DEFAULT = 0; +const SHADER_MORPHING = 1; +const defaultDuration = 250; +const shaderDefines = { + '0': null, + '1': 'TERRAIN_VERTEX_MORPHING' +}; +function drawTerrainRaster(painter, terrain, sourceCache, tileIDs, now) { + const context = painter.context; + const gl = context.gl; + let program = painter.useProgram('terrainRaster'); + let programMode = SHADER_DEFAULT; + const setShaderMode = mode => { + if (programMode === mode) + return; + program = painter.useProgram('terrainRaster', null, shaderDefines[mode]); + programMode = mode; + }; + const colorMode = painter.colorModeForRenderPass(); + const depthMode = new ref_properties.DepthMode(gl.LEQUAL, ref_properties.DepthMode.ReadWrite, painter.depthRangeFor3D); + vertexMorphing.update(now); + const tr = painter.transform; + const skirt = skirtHeight(tr.zoom) * terrain.exaggeration(); + for (const coord of tileIDs) { + const tile = sourceCache.getTile(coord); + const stencilMode = ref_properties.StencilMode.disabled; + const prevDemTile = terrain.prevTerrainTileForTile[coord.key]; + const nextDemTile = terrain.terrainTileForTile[coord.key]; + if (demTileChanged(prevDemTile, nextDemTile)) { + vertexMorphing.newMorphing(coord.key, prevDemTile, nextDemTile, now, defaultDuration); + } + context.activeTexture.set(gl.TEXTURE0); + tile.texture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE, gl.LINEAR_MIPMAP_NEAREST); + const morph = vertexMorphing.getMorphValuesForProxy(coord.key); + const shaderMode = morph ? SHADER_MORPHING : SHADER_DEFAULT; + let elevationOptions; + if (morph) { + elevationOptions = { + morphing: { + srcDemTile: morph.from, + dstDemTile: morph.to, + phase: ref_properties.easeCubicInOut(morph.phase) + } + }; + } + const uniformValues = terrainRasterUniformValues(coord.posMatrix, isEdgeTile(coord.canonical, tr.renderWorldCopies) ? skirt / 10 : skirt); + setShaderMode(shaderMode); + terrain.setupElevationDraw(tile, program, elevationOptions); + program.draw(context, gl.TRIANGLES, depthMode, stencilMode, colorMode, ref_properties.CullFaceMode.backCCW, uniformValues, 'terrain_raster', terrain.gridBuffer, terrain.gridIndexBuffer, terrain.gridSegments); + } +} +function drawTerrainDepth(painter, terrain, sourceCache, tileIDs) { + const context = painter.context; + const gl = context.gl; + context.clear({ depth: 1 }); + const program = painter.useProgram('terrainDepth'); + const depthMode = new ref_properties.DepthMode(gl.LESS, ref_properties.DepthMode.ReadWrite, painter.depthRangeFor3D); + for (const coord of tileIDs) { + const tile = sourceCache.getTile(coord); + const uniformValues = terrainRasterUniformValues(coord.posMatrix, 0); + terrain.setupElevationDraw(tile, program); + program.draw(context, gl.TRIANGLES, depthMode, ref_properties.StencilMode.disabled, ref_properties.ColorMode.unblended, ref_properties.CullFaceMode.backCCW, uniformValues, 'terrain_depth', terrain.gridBuffer, terrain.gridIndexBuffer, terrain.gridNoSkirtSegments); + } +} +function skirtHeight(zoom) { + return 6 * Math.pow(1.5, 22 - zoom); +} +function isEdgeTile(cid, renderWorldCopies) { + const numTiles = 1 << cid.z; + return !renderWorldCopies && (cid.x === 0 || cid.x === numTiles - 1) || cid.y === 0 || cid.y === numTiles - 1; +} + +const clippingMaskUniforms = (context, locations) => ({ 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix) }); +const clippingMaskUniformValues = matrix => ({ 'u_matrix': matrix }); + +function rasterFade(tile, parentTile, sourceCache, transform, fadeDuration) { + if (fadeDuration > 0) { + const now = ref_properties.browser.now(); + const sinceTile = (now - tile.timeAdded) / fadeDuration; + const sinceParent = parentTile ? (now - parentTile.timeAdded) / fadeDuration : -1; + const source = sourceCache.getSource(); + const idealZ = transform.coveringZoomLevel({ + tileSize: source.tileSize, + roundZoom: source.roundZoom + }); + const fadeIn = !parentTile || Math.abs(parentTile.tileID.overscaledZ - idealZ) > Math.abs(tile.tileID.overscaledZ - idealZ); + const childOpacity = fadeIn && tile.refreshedUponExpiration ? 1 : ref_properties.clamp(fadeIn ? sinceTile : 1 - sinceParent, 0, 1); + if (tile.refreshedUponExpiration && sinceTile >= 1) + tile.refreshedUponExpiration = false; + if (parentTile) { + return { + opacity: 1, + mix: 1 - childOpacity + }; + } else { + return { + opacity: childOpacity, + mix: 0 + }; + } + } else { + return { + opacity: 1, + mix: 0 + }; + } +} + +const GRID_DIM = 128; +const FBO_POOL_SIZE = 5; +const RENDER_CACHE_MAX_SIZE = 50; +class ProxySourceCache extends ref_properties.SourceCache { + constructor(map) { + const source = create('proxy', { + type: 'geojson', + maxzoom: map.transform.maxZoom + }, new Dispatcher(getGlobalWorkerPool(), null), map.style); + super('proxy', source, false); + source.setEventedParent(this); + this.map = this.getSource().map = map; + this.used = this._sourceLoaded = true; + this.renderCache = []; + this.renderCachePool = []; + this.proxyCachedFBO = {}; + } + update(transform, tileSize, updateForTerrain) { + if (transform.freezeTileCoverage) { + return; + } + this.transform = transform; + const idealTileIDs = transform.coveringTiles({ + tileSize: this._source.tileSize, + minzoom: this._source.minzoom, + maxzoom: this._source.maxzoom, + roundZoom: this._source.roundZoom, + reparseOverscaled: this._source.reparseOverscaled, + useElevationData: true + }); + const incoming = idealTileIDs.reduce((acc, tileID) => { + acc[tileID.key] = ''; + if (!this._tiles[tileID.key]) { + const tile = new ref_properties.Tile(tileID, this._source.tileSize * tileID.overscaleFactor(), transform.tileZoom); + tile.state = 'loaded'; + this._tiles[tileID.key] = tile; + } + return acc; + }, {}); + for (const id in this._tiles) { + if (!(id in incoming)) { + this.freeFBO(id); + this._tiles[id].state = 'unloaded'; + delete this._tiles[id]; + } + } + } + freeFBO(id) { + const fbos = this.proxyCachedFBO[id]; + if (fbos !== undefined) { + const fboIds = Object.values(fbos); + this.renderCachePool.push(...fboIds); + delete this.proxyCachedFBO[id]; + } + } + deallocRenderCache() { + this.renderCache.forEach(fbo => fbo.fb.destroy()); + this.renderCache = []; + this.renderCachePool = []; + this.proxyCachedFBO = {}; + } +} +class ProxiedTileID extends ref_properties.OverscaledTileID { + constructor(tileID, proxyTileKey, posMatrix) { + super(tileID.overscaledZ, tileID.wrap, tileID.canonical.z, tileID.canonical.x, tileID.canonical.y); + this.proxyTileKey = proxyTileKey; + this.posMatrix = posMatrix; + } +} +class Terrain$1 extends ref_properties.Elevation { + constructor(painter, style) { + super(); + this.painter = painter; + this.terrainTileForTile = {}; + this.prevTerrainTileForTile = {}; + const [triangleGridArray, triangleGridIndices, skirtIndicesOffset] = createGrid(GRID_DIM + 1); + const context = painter.context; + this.gridBuffer = context.createVertexBuffer(triangleGridArray, rasterBoundsAttributes.members); + this.gridIndexBuffer = context.createIndexBuffer(triangleGridIndices); + this.gridSegments = ref_properties.SegmentVector.simpleSegment(0, 0, triangleGridArray.length, triangleGridIndices.length); + this.gridNoSkirtSegments = ref_properties.SegmentVector.simpleSegment(0, 0, triangleGridArray.length, skirtIndicesOffset); + this.proxyCoords = []; + this.proxiedCoords = {}; + this._visibleDemTiles = []; + this._drapedRenderBatches = []; + this._sourceTilesOverlap = {}; + this.proxySourceCache = new ProxySourceCache(style.map); + this.orthoMatrix = ref_properties.create(); + ref_properties.ortho(this.orthoMatrix, 0, ref_properties.EXTENT, 0, ref_properties.EXTENT, 0, 1); + const gl = context.gl; + this._overlapStencilMode = new ref_properties.StencilMode({ + func: gl.GEQUAL, + mask: 255 + }, 0, 255, gl.KEEP, gl.KEEP, gl.REPLACE); + this._previousZoom = painter.transform.zoom; + this.pool = []; + this._findCoveringTileCache = {}; + this._tilesDirty = {}; + this.style = style; + this._useVertexMorphing = true; + } + set style(style) { + style.on('data', this._onStyleDataEvent.bind(this)); + style.on('neworder', this._checkRenderCacheEfficiency.bind(this)); + this._style = style; + this._checkRenderCacheEfficiency(); + } + update(style, transform, cameraChanging) { + if (style && style.terrain) { + if (this._style !== style) { + this.style = style; + } + this.enabled = true; + const terrainProps = style.terrain.properties; + this.sourceCache = style._getSourceCache(terrainProps.get('source')); + this._exaggeration = terrainProps.get('exaggeration'); + const updateSourceCache = () => { + if (this.sourceCache.used) { + ref_properties.warnOnce(`Raster DEM source '${ this.sourceCache.id }' is used both for terrain and as layer source.\n` + 'This leads to lower resolution of hillshade. For full hillshade resolution but higher memory consumption, define another raster DEM source.'); + } + const demScale = this.sourceCache.getSource().tileSize / GRID_DIM; + const proxyTileSize = this.proxySourceCache.getSource().tileSize; + this.sourceCache.update(transform, demScale * proxyTileSize, true); + this._findCoveringTileCache[this.sourceCache.id] = {}; + }; + if (!this.sourceCache.usedForTerrain) { + this._findCoveringTileCache[this.sourceCache.id] = {}; + this.sourceCache.usedForTerrain = true; + updateSourceCache(); + this._initializing = true; + } + updateSourceCache(); + transform.updateElevation(!cameraChanging); + this._findCoveringTileCache[this.proxySourceCache.id] = {}; + this.proxySourceCache.update(transform); + this._emptyDEMTextureDirty = true; + } else { + this._disable(); + } + } + _checkRenderCacheEfficiency() { + const renderCacheInfo = this.renderCacheEfficiency(this._style); + if (this._style.map._optimizeForTerrain) ; else if (renderCacheInfo.efficiency !== 100) { + ref_properties.warnOnce(`Terrain render cache efficiency is not optimal (${ renderCacheInfo.efficiency }%) and performance + may be affected negatively, consider placing all background, fill and line layers before layer + with id '${ renderCacheInfo.firstUndrapedLayer }' or create a map using optimizeForTerrain: true option.`); + } + } + _onStyleDataEvent(event) { + if (event.coord && event.dataType === 'source') { + this._clearRenderCacheForTile(event.sourceCacheId, event.coord); + } else if (event.dataType === 'style') { + this._invalidateRenderCache = true; + } + } + _disable() { + if (!this.enabled) + return; + this.enabled = false; + this.proxySourceCache.deallocRenderCache(); + if (this._style) { + for (const id in this._style._sourceCaches) { + this._style._sourceCaches[id].usedForTerrain = false; + } + } + } + destroy() { + this._disable(); + if (this._emptyDEMTexture) + this._emptyDEMTexture.destroy(); + this.pool.forEach(fbo => fbo.fb.destroy()); + this.pool = []; + if (this._depthFBO) { + this._depthFBO.destroy(); + delete this._depthFBO; + delete this._depthTexture; + } + } + _source() { + return this.enabled ? this.sourceCache : null; + } + exaggeration() { + return this._exaggeration; + } + get visibleDemTiles() { + return this._visibleDemTiles; + } + get drapeBufferSize() { + const extent = this.proxySourceCache.getSource().tileSize * 2; + return [ + extent, + extent + ]; + } + set useVertexMorphing(enable) { + this._useVertexMorphing = enable; + } + updateTileBinding(sourcesCoords) { + if (!this.enabled) + return; + this.prevTerrainTileForTile = this.terrainTileForTile; + const psc = this.proxySourceCache; + const tr = this.painter.transform; + if (this._initializing) { + this._initializing = tr._centerAltitude === 0 && this.getAtPoint(ref_properties.MercatorCoordinate.fromLngLat(tr.center), -1) === -1; + this._emptyDEMTextureDirty = !this._initializing; + } + const options = this.painter.options; + this.renderCached = (options.zooming || options.moving || options.rotating || !!this.forceRenderCached) && !this._invalidateRenderCache; + this._invalidateRenderCache = false; + const coords = this.proxyCoords = psc.getIds().map(id => { + const tileID = psc.getTileByID(id).tileID; + tileID.posMatrix = tr.calculatePosMatrix(tileID.toUnwrapped()); + return tileID; + }); + sortByDistanceToCamera(coords, this.painter); + this._previousZoom = tr.zoom; + const previousProxyToSource = this.proxyToSource || {}; + this.proxyToSource = {}; + coords.forEach(tileID => { + this.proxyToSource[tileID.key] = {}; + }); + this.terrainTileForTile = {}; + const sourceCaches = this._style._sourceCaches; + for (const id in sourceCaches) { + const sourceCache = sourceCaches[id]; + if (!sourceCache.used) + continue; + if (sourceCache !== this.sourceCache) + this._findCoveringTileCache[sourceCache.id] = {}; + this._setupProxiedCoordsForOrtho(sourceCache, sourcesCoords[id], previousProxyToSource); + if (sourceCache.usedForTerrain) + continue; + const coordinates = sourcesCoords[id]; + if (sourceCache.getSource().reparseOverscaled) { + this._assignTerrainTiles(coordinates); + } + } + this.proxiedCoords[psc.id] = coords.map(tileID => new ProxiedTileID(tileID, tileID.key, this.orthoMatrix)); + this._assignTerrainTiles(coords); + this._prepareDEMTextures(); + this._setupDrapedRenderBatches(); + this._setupRenderCache(previousProxyToSource); + this.renderingToTexture = false; + this._initFBOPool(); + this._updateTimestamp = ref_properties.browser.now(); + const visibleKeys = {}; + this._visibleDemTiles = []; + for (const id of this.proxyCoords) { + const demTile = this.terrainTileForTile[id.key]; + if (!demTile) + continue; + const key = demTile.tileID.key; + if (key in visibleKeys) + continue; + this._visibleDemTiles.push(demTile); + visibleKeys[key] = key; + } + } + _assignTerrainTiles(coords) { + if (this._initializing) + return; + coords.forEach(tileID => { + if (this.terrainTileForTile[tileID.key]) + return; + const demTile = this._findTileCoveringTileID(tileID, this.sourceCache); + if (demTile) + this.terrainTileForTile[tileID.key] = demTile; + }); + } + _prepareDEMTextures() { + const context = this.painter.context; + const gl = context.gl; + for (const key in this.terrainTileForTile) { + const tile = this.terrainTileForTile[key]; + const dem = tile.dem; + if (dem && (!tile.demTexture || tile.needsDEMTextureUpload)) { + context.activeTexture.set(gl.TEXTURE1); + prepareDEMTexture(this.painter, tile, dem); + } + } + } + _prepareDemTileUniforms(proxyTile, demTile, uniforms, uniformSuffix) { + if (!demTile || demTile.demTexture == null) + return false; + const proxyId = proxyTile.tileID.canonical; + const demId = demTile.tileID.canonical; + const demScaleBy = Math.pow(2, demId.z - proxyId.z); + const suffix = uniformSuffix || ''; + uniforms[`u_dem_tl${ suffix }`] = [ + proxyId.x * demScaleBy % 1, + proxyId.y * demScaleBy % 1 + ]; + uniforms[`u_dem_scale${ suffix }`] = demScaleBy; + return true; + } + get emptyDEMTexture() { + return !this._emptyDEMTextureDirty && this._emptyDEMTexture ? this._emptyDEMTexture : this._updateEmptyDEMTexture(); + } + _getLoadedAreaMinimum() { + let nonzero = 0; + const min = this._visibleDemTiles.reduce((acc, tile) => { + if (!tile.dem) + return acc; + const m = tile.dem.tree.minimums[0]; + acc += m; + if (m > 0) + nonzero++; + return acc; + }, 0); + return nonzero ? min / nonzero : 0; + } + _updateEmptyDEMTexture() { + const context = this.painter.context; + const gl = context.gl; + context.activeTexture.set(gl.TEXTURE2); + const min = this._getLoadedAreaMinimum(); + const image = { + width: 1, + height: 1, + data: new Uint8Array(ref_properties.DEMData.pack(min, this.sourceCache.getSource().encoding)) + }; + this._emptyDEMTextureDirty = false; + let texture = this._emptyDEMTexture; + if (!texture) { + texture = this._emptyDEMTexture = new ref_properties.Texture(context, image, gl.RGBA, { premultiply: false }); + } else { + texture.update(image, { premultiply: false }); + } + return texture; + } + setupElevationDraw(tile, program, options) { + const context = this.painter.context; + const gl = context.gl; + const uniforms = defaultTerrainUniforms(this.sourceCache.getSource().encoding); + uniforms['u_dem_size'] = this.sourceCache.getSource().tileSize; + uniforms['u_exaggeration'] = this.exaggeration(); + let demTile = null; + let prevDemTile = null; + let morphingPhase = 1; + if (options && options.morphing && this._useVertexMorphing) { + const srcTile = options.morphing.srcDemTile; + const dstTile = options.morphing.dstDemTile; + morphingPhase = options.morphing.phase; + if (srcTile && dstTile) { + if (this._prepareDemTileUniforms(tile, srcTile, uniforms, '_prev')) + prevDemTile = srcTile; + if (this._prepareDemTileUniforms(tile, dstTile, uniforms)) + demTile = dstTile; + } + } + if (prevDemTile && demTile) { + context.activeTexture.set(gl.TEXTURE2); + demTile.demTexture.bind(gl.NEAREST, gl.CLAMP_TO_EDGE, gl.NEAREST); + context.activeTexture.set(gl.TEXTURE4); + prevDemTile.demTexture.bind(gl.NEAREST, gl.CLAMP_TO_EDGE, gl.NEAREST); + uniforms['u_dem_lerp'] = morphingPhase; + } else { + demTile = this.terrainTileForTile[tile.tileID.key]; + context.activeTexture.set(gl.TEXTURE2); + const demTexture = this._prepareDemTileUniforms(tile, demTile, uniforms) ? demTile.demTexture : this.emptyDEMTexture; + demTexture.bind(gl.NEAREST, gl.CLAMP_TO_EDGE, gl.NEAREST); + } + if (options && options.useDepthForOcclusion) { + context.activeTexture.set(gl.TEXTURE3); + this._depthTexture.bind(gl.NEAREST, gl.CLAMP_TO_EDGE, gl.NEAREST); + uniforms['u_depth_size_inv'] = [ + 1 / this._depthFBO.width, + 1 / this._depthFBO.height + ]; + } + if (options && options.useMeterToDem && demTile) { + const meterToDEM = (1 << demTile.tileID.canonical.z) * ref_properties.mercatorZfromAltitude(1, this.painter.transform.center.lat) * this.sourceCache.getSource().tileSize; + uniforms['u_meter_to_dem'] = meterToDEM; + } + if (options && options.labelPlaneMatrixInv) { + uniforms['u_label_plane_matrix_inv'] = options.labelPlaneMatrixInv; + } + program.setTerrainUniformValues(context, uniforms); + } + renderBatch(startLayerIndex) { + if (this._drapedRenderBatches.length === 0) { + return startLayerIndex + 1; + } + this.renderingToTexture = true; + const painter = this.painter; + const context = this.painter.context; + const psc = this.proxySourceCache; + const proxies = this.proxiedCoords[psc.id]; + const setupRenderToScreen = () => { + context.bindFramebuffer.set(null); + context.viewport.set([ + 0, + 0, + painter.width, + painter.height + ]); + this.renderingToTexture = false; + }; + const drapedLayerBatch = this._drapedRenderBatches.shift(); + let drawAsRasterCoords = []; + const layerIds = painter.style.order; + let poolIndex = 0; + for (let i = 0; i < proxies.length; i++) { + const proxy = proxies[i]; + const tile = psc.getTileByID(proxy.proxyTileKey); + const renderCacheIndex = psc.proxyCachedFBO[proxy.key] ? psc.proxyCachedFBO[proxy.key][startLayerIndex] : undefined; + let fbo; + if (renderCacheIndex !== undefined) { + fbo = this.currentFBO = psc.renderCache[renderCacheIndex]; + } else { + fbo = this.currentFBO = this.pool[poolIndex++]; + } + tile.texture = fbo.tex; + if (renderCacheIndex !== undefined && !fbo.dirty) { + drawAsRasterCoords.push(tile.tileID); + continue; + } + context.bindFramebuffer.set(fbo.fb.framebuffer); + this.renderedToTile = false; + if (fbo.dirty) { + context.clear({ color: ref_properties.Color.transparent }); + fbo.dirty = false; + } + let currentStencilSource; + for (let j = drapedLayerBatch.start; j <= drapedLayerBatch.end; ++j) { + const layer = painter.style._layers[layerIds[j]]; + const hidden = layer.isHidden(painter.transform.zoom); + if (hidden) + continue; + const sourceCache = painter.style._getLayerSourceCache(layer); + const proxiedCoords = sourceCache ? this.proxyToSource[proxy.key][sourceCache.id] : [proxy]; + if (!proxiedCoords) + continue; + const coords = proxiedCoords; + context.viewport.set([ + 0, + 0, + fbo.fb.width, + fbo.fb.height + ]); + if (currentStencilSource !== (sourceCache ? sourceCache.id : null)) { + this._setupStencil(proxiedCoords, layer, sourceCache); + currentStencilSource = sourceCache ? sourceCache.id : null; + } + painter.renderLayer(painter, sourceCache, layer, coords); + } + fbo.dirty = this.renderedToTile; + if (this.renderedToTile) + drawAsRasterCoords.push(tile.tileID); + if (poolIndex === FBO_POOL_SIZE) { + poolIndex = 0; + if (drawAsRasterCoords.length > 0) { + setupRenderToScreen(); + drawTerrainRaster(painter, this, psc, drawAsRasterCoords, this._updateTimestamp); + this.renderingToTexture = true; + drawAsRasterCoords = []; + } + } + } + setupRenderToScreen(); + if (drawAsRasterCoords.length > 0) { + drawTerrainRaster(painter, this, psc, drawAsRasterCoords, this._updateTimestamp); + } + return drapedLayerBatch.end + 1; + } + postRender() { + } + renderCacheEfficiency(style) { + const layerCount = style.order.length; + if (layerCount === 0) { + return { efficiency: 100 }; + } + let uncacheableLayerCount = 0; + let drapedLayerCount = 0; + let reachedUndrapedLayer = false; + let firstUndrapedLayer; + for (let i = 0; i < layerCount; ++i) { + const layer = style._layers[style.order[i]]; + if (!this._style.isLayerDraped(layer)) { + if (!reachedUndrapedLayer) { + reachedUndrapedLayer = true; + firstUndrapedLayer = layer.id; + } + } else { + if (reachedUndrapedLayer) { + ++uncacheableLayerCount; + } + ++drapedLayerCount; + } + } + if (drapedLayerCount === 0) { + return { efficiency: 100 }; + } + return { + efficiency: (1 - uncacheableLayerCount / drapedLayerCount) * 100, + firstUndrapedLayer + }; + } + raycast(pos, dir, exaggeration) { + if (!this._visibleDemTiles) + return null; + const preparedTiles = this._visibleDemTiles.filter(tile => tile.dem).map(tile => { + const id = tile.tileID; + const tiles = Math.pow(2, id.overscaledZ); + const {x, y} = id.canonical; + const minx = x / tiles; + const maxx = (x + 1) / tiles; + const miny = y / tiles; + const maxy = (y + 1) / tiles; + const tree = tile.dem.tree; + return { + minx, + miny, + maxx, + maxy, + t: tree.raycastRoot(minx, miny, maxx, maxy, pos, dir, exaggeration), + tile + }; + }); + preparedTiles.sort((a, b) => { + const at = a.t !== null ? a.t : Number.MAX_VALUE; + const bt = b.t !== null ? b.t : Number.MAX_VALUE; + return at - bt; + }); + for (const obj of preparedTiles) { + if (obj.t == null) + return null; + const tree = obj.tile.dem.tree; + const t = tree.raycast(obj.minx, obj.miny, obj.maxx, obj.maxy, pos, dir, exaggeration); + if (t != null) + return t; + } + return null; + } + _createFBO() { + const painter = this.painter; + const context = painter.context; + const gl = context.gl; + const bufferSize = this.drapeBufferSize; + context.activeTexture.set(gl.TEXTURE0); + const tex = new ref_properties.Texture(context, { + width: bufferSize[0], + height: bufferSize[1], + data: null + }, gl.RGBA); + tex.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + const fb = context.createFramebuffer(bufferSize[0], bufferSize[1], false); + fb.colorAttachment.set(tex.texture); + if (context.extTextureFilterAnisotropic && !context.extTextureFilterAnisotropicForceOff) { + gl.texParameterf(gl.TEXTURE_2D, context.extTextureFilterAnisotropic.TEXTURE_MAX_ANISOTROPY_EXT, context.extTextureFilterAnisotropicMax); + } + return { + fb, + tex, + dirty: false, + ref: 1 + }; + } + _initFBOPool() { + while (this.pool.length < Math.min(FBO_POOL_SIZE, this.proxyCoords.length)) { + this.pool.push(this._createFBO()); + } + } + _shouldDisableRenderCache() { + const isCrossFading = id => { + const layer = this._style._layers[id]; + const isHidden = !layer.isHidden(this.painter.transform.zoom); + const crossFade = layer.getCrossfadeParameters(); + const isFading = !!crossFade && crossFade.t !== 1; + return layer.type !== 'custom' && !isHidden && isFading; + }; + return !this.renderCached || this._style.order.some(isCrossFading); + } + _clearRasterFadeFromRenderCache() { + let hasRasterSource = false; + for (const id in this._style._sourceCaches) { + if (this._style._sourceCaches[id]._source instanceof RasterTileSource) { + hasRasterSource = true; + break; + } + } + if (!hasRasterSource) { + return; + } + for (let i = 0; i < this._style.order.length; ++i) { + const layer = this._style._layers[this._style.order[i]]; + const isHidden = layer.isHidden(this.painter.transform.zoom); + const sourceCache = this._style._getLayerSourceCache(layer); + if (layer.type !== 'raster' || isHidden || !sourceCache) { + continue; + } + const rasterLayer = layer; + const fadeDuration = rasterLayer.paint.get('raster-fade-duration'); + for (const proxy of this.proxyCoords) { + const proxiedCoords = this.proxyToSource[proxy.key][sourceCache.id]; + const coords = proxiedCoords; + if (!coords) { + continue; + } + for (const coord of coords) { + const tile = sourceCache.getTile(coord); + const parent = sourceCache.findLoadedParent(coord, 0); + const fade = rasterFade(tile, parent, sourceCache, this.painter.transform, fadeDuration); + const isFading = fade.opacity !== 1 || fade.mix !== 0; + if (isFading) { + this._clearRenderCacheForTile(sourceCache.id, coord); + } + } + } + } + } + _setupDrapedRenderBatches() { + const layerIds = this._style.order; + const layerCount = layerIds.length; + if (layerCount === 0) { + return; + } + const batches = []; + let currentLayer = 0; + let layer = this._style._layers[layerIds[currentLayer]]; + while (!this._style.isLayerDraped(layer) && layer.isHidden(this.painter.transform.zoom) && ++currentLayer < layerCount) { + layer = this._style._layers[layerIds[currentLayer]]; + } + let batchStart; + for (; currentLayer < layerCount; ++currentLayer) { + const layer = this._style._layers[layerIds[currentLayer]]; + if (layer.isHidden(this.painter.transform.zoom)) { + continue; + } + if (!this._style.isLayerDraped(layer)) { + if (batchStart !== undefined) { + batches.push({ + start: batchStart, + end: currentLayer - 1 + }); + batchStart = undefined; + } + continue; + } + if (batchStart === undefined) { + batchStart = currentLayer; + } + } + if (batchStart !== undefined) { + batches.push({ + start: batchStart, + end: currentLayer - 1 + }); + } + if (this._style.map._optimizeForTerrain) ; + this._drapedRenderBatches = batches; + } + _setupRenderCache(previousProxyToSource) { + const psc = this.proxySourceCache; + if (this._shouldDisableRenderCache()) { + if (psc.renderCache.length > psc.renderCachePool.length) { + const used = Object.values(psc.proxyCachedFBO); + psc.proxyCachedFBO = {}; + for (let i = 0; i < used.length; ++i) { + const fbos = Object.values(used[i]); + psc.renderCachePool.push(...fbos); + } + } + return; + } + this._clearRasterFadeFromRenderCache(); + const coords = this.proxyCoords; + const dirty = this._tilesDirty; + for (let i = coords.length - 1; i >= 0; i--) { + const proxy = coords[i]; + const tile = psc.getTileByID(proxy.key); + if (psc.proxyCachedFBO[proxy.key] !== undefined) { + const prev = previousProxyToSource[proxy.key]; + const current = this.proxyToSource[proxy.key]; + let equal = 0; + for (const source in current) { + const tiles = current[source]; + const prevTiles = prev[source]; + if (!prevTiles || prevTiles.length !== tiles.length || tiles.some((t, index) => t !== prevTiles[index] || dirty[source] && dirty[source].hasOwnProperty(t.key))) { + equal = -1; + break; + } + ++equal; + } + for (const proxyFBO in psc.proxyCachedFBO[proxy.key]) { + psc.renderCache[psc.proxyCachedFBO[proxy.key][proxyFBO]].dirty = equal < 0 || equal !== Object.values(prev).length; + } + } else { + for (let j = 0; j < this._drapedRenderBatches.length; ++j) { + const batch = this._drapedRenderBatches[j]; + let index = psc.renderCachePool.pop(); + if (index === undefined && psc.renderCache.length < RENDER_CACHE_MAX_SIZE) { + index = psc.renderCache.length; + psc.renderCache.push(this._createFBO()); + } + if (index !== undefined) { + if (psc.proxyCachedFBO[proxy.key] === undefined) + psc.proxyCachedFBO[proxy.key] = {}; + psc.proxyCachedFBO[proxy.key][batch.start] = index; + psc.renderCache[index].dirty = true; + } + } + } + } + this._tilesDirty = {}; + } + _setupStencil(proxiedCoords, layer, sourceCache) { + if (!sourceCache || !this._sourceTilesOverlap[sourceCache.id]) { + if (this._overlapStencilType) + this._overlapStencilType = false; + return; + } + const context = this.painter.context; + const gl = context.gl; + if (proxiedCoords.length <= 1) { + this._overlapStencilType = false; + return; + } + const fbo = this.currentFBO; + const fb = fbo.fb; + let stencilRange; + if (layer.isTileClipped()) { + stencilRange = proxiedCoords.length; + this._overlapStencilMode.test = { + func: gl.EQUAL, + mask: 255 + }; + this._overlapStencilType = 'Clip'; + } else if (proxiedCoords[0].overscaledZ > proxiedCoords[proxiedCoords.length - 1].overscaledZ) { + stencilRange = 1; + this._overlapStencilMode.test = { + func: gl.GREATER, + mask: 255 + }; + this._overlapStencilType = 'Mask'; + } else { + this._overlapStencilType = false; + return; + } + if (!fb.depthAttachment) { + const renderbuffer = context.createRenderbuffer(context.gl.DEPTH_STENCIL, fb.width, fb.height); + fb.depthAttachment = new ref_properties.DepthStencilAttachment(context, fb.framebuffer); + fb.depthAttachment.set(renderbuffer); + context.clear({ stencil: 0 }); + } + if (fbo.ref + stencilRange > 255) { + context.clear({ stencil: 0 }); + fbo.ref = 0; + } + fbo.ref += stencilRange; + this._overlapStencilMode.ref = fbo.ref; + if (layer.isTileClipped()) { + this._renderTileClippingMasks(proxiedCoords, this._overlapStencilMode.ref); + } + } + stencilModeForRTTOverlap(id) { + if (!this.renderingToTexture || !this._overlapStencilType) { + return ref_properties.StencilMode.disabled; + } + if (this._overlapStencilType === 'Clip') { + this._overlapStencilMode.ref = this.painter._tileClippingMaskIDs[id.key]; + } + return this._overlapStencilMode; + } + _renderTileClippingMasks(proxiedCoords, ref) { + const painter = this.painter; + const context = this.painter.context; + const gl = context.gl; + painter._tileClippingMaskIDs = {}; + context.setColorMode(ref_properties.ColorMode.disabled); + context.setDepthMode(ref_properties.DepthMode.disabled); + const program = painter.useProgram('clippingMask'); + for (const tileID of proxiedCoords) { + const id = painter._tileClippingMaskIDs[tileID.key] = --ref; + program.draw(context, gl.TRIANGLES, ref_properties.DepthMode.disabled, new ref_properties.StencilMode({ + func: gl.ALWAYS, + mask: 0 + }, id, 255, gl.KEEP, gl.KEEP, gl.REPLACE), ref_properties.ColorMode.disabled, ref_properties.CullFaceMode.disabled, clippingMaskUniformValues(tileID.posMatrix), '$clipping', painter.tileExtentBuffer, painter.quadTriangleIndexBuffer, painter.tileExtentSegments); + } + } + pointCoordinate(screenPoint) { + const transform = this.painter.transform; + if (screenPoint.x < 0 || screenPoint.x > transform.width || screenPoint.y < 0 || screenPoint.y > transform.height) { + return null; + } + const far = [ + screenPoint.x, + screenPoint.y, + 1, + 1 + ]; + ref_properties.transformMat4(far, far, transform.pixelMatrixInverse); + ref_properties.scale$1(far, far, 1 / far[3]); + far[0] /= transform.worldSize; + far[1] /= transform.worldSize; + const camera = transform._camera.position; + const mercatorZScale = ref_properties.mercatorZfromAltitude(1, transform.center.lat); + const p = [ + camera[0], + camera[1], + camera[2] / mercatorZScale, + 0 + ]; + const dir = ref_properties.subtract([], far.slice(0, 3), p); + ref_properties.normalize(dir, dir); + const distanceAlongRay = this.raycast(p, dir, this._exaggeration); + if (distanceAlongRay === null || !distanceAlongRay) + return null; + ref_properties.scaleAndAdd(p, p, dir, distanceAlongRay); + p[3] = p[2]; + p[2] *= mercatorZScale; + return p; + } + drawDepth() { + const painter = this.painter; + const context = painter.context; + const psc = this.proxySourceCache; + const width = Math.ceil(painter.width), height = Math.ceil(painter.height); + if (this._depthFBO && (this._depthFBO.width !== width || this._depthFBO.height !== height)) { + this._depthFBO.destroy(); + delete this._depthFBO; + delete this._depthTexture; + } + if (!this._depthFBO) { + const gl = context.gl; + const fbo = context.createFramebuffer(width, height, true); + context.activeTexture.set(gl.TEXTURE0); + const texture = new ref_properties.Texture(context, { + width, + height, + data: null + }, gl.RGBA); + texture.bind(gl.NEAREST, gl.CLAMP_TO_EDGE); + fbo.colorAttachment.set(texture.texture); + const renderbuffer = context.createRenderbuffer(context.gl.DEPTH_COMPONENT16, width, height); + fbo.depthAttachment.set(renderbuffer); + this._depthFBO = fbo; + this._depthTexture = texture; + } + context.bindFramebuffer.set(this._depthFBO.framebuffer); + context.viewport.set([ + 0, + 0, + width, + height + ]); + drawTerrainDepth(painter, this, psc, this.proxyCoords); + } + _setupProxiedCoordsForOrtho(sourceCache, sourceCoords, previousProxyToSource) { + if (sourceCache.getSource() instanceof ImageSource) { + return this._setupProxiedCoordsForImageSource(sourceCache, sourceCoords, previousProxyToSource); + } + this._findCoveringTileCache[sourceCache.id] = this._findCoveringTileCache[sourceCache.id] || {}; + const coords = this.proxiedCoords[sourceCache.id] = []; + const proxys = this.proxyCoords; + for (let i = 0; i < proxys.length; i++) { + const proxyTileID = proxys[i]; + const proxied = this._findTileCoveringTileID(proxyTileID, sourceCache); + if (proxied) { + const id = this._createProxiedId(proxyTileID, proxied, previousProxyToSource[proxyTileID.key] && previousProxyToSource[proxyTileID.key][sourceCache.id]); + coords.push(id); + this.proxyToSource[proxyTileID.key][sourceCache.id] = [id]; + } + } + let hasOverlap = false; + for (let i = 0; i < sourceCoords.length; i++) { + const tile = sourceCache.getTile(sourceCoords[i]); + if (!tile || !tile.hasData()) + continue; + const proxy = this._findTileCoveringTileID(tile.tileID, this.proxySourceCache); + if (proxy && proxy.tileID.canonical.z !== tile.tileID.canonical.z) { + const array = this.proxyToSource[proxy.tileID.key][sourceCache.id]; + const id = this._createProxiedId(proxy.tileID, tile, previousProxyToSource[proxy.tileID.key] && previousProxyToSource[proxy.tileID.key][sourceCache.id]); + if (!array) { + this.proxyToSource[proxy.tileID.key][sourceCache.id] = [id]; + } else { + array.splice(array.length - 1, 0, id); + } + coords.push(id); + hasOverlap = true; + } + } + this._sourceTilesOverlap[sourceCache.id] = hasOverlap; + } + _setupProxiedCoordsForImageSource(sourceCache, sourceCoords, previousProxyToSource) { + if (!sourceCache.getSource().loaded()) + return; + const coords = this.proxiedCoords[sourceCache.id] = []; + const proxys = this.proxyCoords; + const imageSource = sourceCache.getSource(); + const anchor = new ref_properties.Point(imageSource.tileID.x, imageSource.tileID.y)._div(1 << imageSource.tileID.z); + const aabb = imageSource.coordinates.map(ref_properties.MercatorCoordinate.fromLngLat).reduce((acc, coord) => { + acc.min.x = Math.min(acc.min.x, coord.x - anchor.x); + acc.min.y = Math.min(acc.min.y, coord.y - anchor.y); + acc.max.x = Math.max(acc.max.x, coord.x - anchor.x); + acc.max.y = Math.max(acc.max.y, coord.y - anchor.y); + return acc; + }, { + min: new ref_properties.Point(Number.MAX_VALUE, Number.MAX_VALUE), + max: new ref_properties.Point(-Number.MAX_VALUE, -Number.MAX_VALUE) + }); + const tileOutsideImage = (tileID, imageTileID) => { + const x = tileID.wrap + tileID.canonical.x / (1 << tileID.canonical.z); + const y = tileID.canonical.y / (1 << tileID.canonical.z); + const d = ref_properties.EXTENT / (1 << tileID.canonical.z); + const ix = imageTileID.wrap + imageTileID.canonical.x / (1 << imageTileID.canonical.z); + const iy = imageTileID.canonical.y / (1 << imageTileID.canonical.z); + return x + d < ix + aabb.min.x || x > ix + aabb.max.x || y + d < iy + aabb.min.y || y > iy + aabb.max.y; + }; + for (let i = 0; i < proxys.length; i++) { + const proxyTileID = proxys[i]; + for (let j = 0; j < sourceCoords.length; j++) { + const tile = sourceCache.getTile(sourceCoords[j]); + if (!tile || !tile.hasData()) + continue; + if (tileOutsideImage(proxyTileID, tile.tileID)) + continue; + const id = this._createProxiedId(proxyTileID, tile, previousProxyToSource[proxyTileID.key] && previousProxyToSource[proxyTileID.key][sourceCache.id]); + const array = this.proxyToSource[proxyTileID.key][sourceCache.id]; + if (!array) { + this.proxyToSource[proxyTileID.key][sourceCache.id] = [id]; + } else { + array.push(id); + } + coords.push(id); + } + } + } + _createProxiedId(proxyTileID, tile, recycle) { + let matrix = this.orthoMatrix; + if (recycle) { + const recycled = recycle.find(proxied => proxied.key === tile.tileID.key); + if (recycled) + return recycled; + } + if (tile.tileID.key !== proxyTileID.key) { + const scale = proxyTileID.canonical.z - tile.tileID.canonical.z; + matrix = ref_properties.create(); + let size, xOffset, yOffset; + const wrap = tile.tileID.wrap - proxyTileID.wrap << proxyTileID.overscaledZ; + if (scale > 0) { + size = ref_properties.EXTENT >> scale; + xOffset = size * ((tile.tileID.canonical.x << scale) - proxyTileID.canonical.x + wrap); + yOffset = size * ((tile.tileID.canonical.y << scale) - proxyTileID.canonical.y); + } else { + size = ref_properties.EXTENT << -scale; + xOffset = ref_properties.EXTENT * (tile.tileID.canonical.x - (proxyTileID.canonical.x + wrap << -scale)); + yOffset = ref_properties.EXTENT * (tile.tileID.canonical.y - (proxyTileID.canonical.y << -scale)); + } + ref_properties.ortho(matrix, 0, size, 0, size, 0, 1); + ref_properties.translate(matrix, matrix, [ + xOffset, + yOffset, + 0 + ]); + } + return new ProxiedTileID(tile.tileID, proxyTileID.key, matrix); + } + _findTileCoveringTileID(tileID, sourceCache) { + let tile = sourceCache.getTile(tileID); + if (tile && tile.hasData()) + return tile; + const lookup = this._findCoveringTileCache[sourceCache.id]; + const key = lookup[tileID.key]; + tile = key ? sourceCache.getTileByID(key) : null; + if (tile && tile.hasData() || key === null) + return tile; + let sourceTileID = tile ? tile.tileID : tileID; + let z = sourceTileID.overscaledZ; + const minzoom = sourceCache.getSource().minzoom; + const path = []; + if (!key) { + const maxzoom = sourceCache.getSource().maxzoom; + if (tileID.canonical.z >= maxzoom) { + const downscale = tileID.canonical.z - maxzoom; + if (sourceCache.getSource().reparseOverscaled) { + z = Math.max(tileID.canonical.z + 2, sourceCache.transform.tileZoom); + sourceTileID = new ref_properties.OverscaledTileID(z, tileID.wrap, maxzoom, tileID.canonical.x >> downscale, tileID.canonical.y >> downscale); + } else if (downscale !== 0) { + z = maxzoom; + sourceTileID = new ref_properties.OverscaledTileID(z, tileID.wrap, maxzoom, tileID.canonical.x >> downscale, tileID.canonical.y >> downscale); + } + } + if (sourceTileID.key !== tileID.key) { + path.push(sourceTileID.key); + tile = sourceCache.getTile(sourceTileID); + } + } + const pathToLookup = key => { + path.forEach(id => { + lookup[id] = key; + }); + path.length = 0; + }; + for (z = z - 1; z >= minzoom && !(tile && tile.hasData()); z--) { + if (tile) { + pathToLookup(tile.tileID.key); + } + const id = sourceTileID.calculateScaledKey(z); + tile = sourceCache.getTileByID(id); + if (tile && tile.hasData()) + break; + const key = lookup[id]; + if (key === null) { + break; + } else if (key !== undefined) { + tile = sourceCache.getTileByID(key); + continue; + } + path.push(id); + } + pathToLookup(tile ? tile.tileID.key : null); + return tile && tile.hasData() ? tile : null; + } + findDEMTileFor(tileID) { + return this.enabled ? this._findTileCoveringTileID(tileID, this.sourceCache) : null; + } + prepareDrawTile(coord) { + if (!this.renderedToTile) { + this.renderedToTile = true; + } + } + _clearRenderCacheForTile(source, coord) { + let sourceTiles = this._tilesDirty[source]; + if (!sourceTiles) + sourceTiles = this._tilesDirty[source] = {}; + sourceTiles[coord.key] = true; + } +} +function sortByDistanceToCamera(tileIDs, painter) { + const cameraCoordinate = painter.transform.pointCoordinate(painter.transform.getCameraPoint()); + const cameraPoint = new ref_properties.Point(cameraCoordinate.x, cameraCoordinate.y); + tileIDs.sort((a, b) => { + if (b.overscaledZ - a.overscaledZ) + return b.overscaledZ - a.overscaledZ; + const aPoint = new ref_properties.Point(a.canonical.x + (1 << a.canonical.z) * a.wrap, a.canonical.y); + const bPoint = new ref_properties.Point(b.canonical.x + (1 << b.canonical.z) * b.wrap, b.canonical.y); + const cameraScaled = cameraPoint.mult(1 << a.canonical.z); + cameraScaled.x -= 0.5; + cameraScaled.y -= 0.5; + return cameraScaled.distSqr(aPoint) - cameraScaled.distSqr(bPoint); + }); +} +function createGrid(count) { + const boundsArray = new ref_properties.StructArrayLayout4i8(); + const indexArray = new ref_properties.StructArrayLayout3ui6(); + const size = count + 2; + boundsArray.reserve(size * size); + indexArray.reserve((size - 1) * (size - 1) * 2); + const step = ref_properties.EXTENT / (count - 1); + const gridBound = ref_properties.EXTENT + step / 2; + const bound = gridBound + step; + const skirtOffset = 24575; + for (let y = -step; y < bound; y += step) { + for (let x = -step; x < bound; x += step) { + const offset = x < 0 || x > gridBound || y < 0 || y > gridBound ? skirtOffset : 0; + const xi = ref_properties.clamp(Math.round(x), 0, ref_properties.EXTENT); + const yi = ref_properties.clamp(Math.round(y), 0, ref_properties.EXTENT); + boundsArray.emplaceBack(xi + offset, yi, xi, yi); + } + } + const skirtIndicesOffset = (size - 3) * (size - 3) * 2; + const quad = (i, j) => { + const index = j * size + i; + indexArray.emplaceBack(index + 1, index, index + size); + indexArray.emplaceBack(index + size, index + size + 1, index + 1); + }; + for (let j = 1; j < size - 2; j++) { + for (let i = 1; i < size - 2; i++) { + quad(i, j); + } + } + [ + 0, + size - 2 + ].forEach(j => { + for (let i = 0; i < size - 1; i++) { + quad(i, j); + quad(j, i); + } + }); + return [ + boundsArray, + indexArray, + skirtIndicesOffset + ]; +} +const terrainUniforms = (context, locations) => ({ + 'u_dem': new ref_properties.Uniform1i(context, locations.u_dem), + 'u_dem_prev': new ref_properties.Uniform1i(context, locations.u_dem_prev), + 'u_dem_unpack': new ref_properties.Uniform4f(context, locations.u_dem_unpack), + 'u_dem_tl': new ref_properties.Uniform2f(context, locations.u_dem_tl), + 'u_dem_scale': new ref_properties.Uniform1f(context, locations.u_dem_scale), + 'u_dem_tl_prev': new ref_properties.Uniform2f(context, locations.u_dem_tl_prev), + 'u_dem_scale_prev': new ref_properties.Uniform1f(context, locations.u_dem_scale_prev), + 'u_dem_size': new ref_properties.Uniform1f(context, locations.u_dem_size), + 'u_dem_lerp': new ref_properties.Uniform1f(context, locations.u_dem_lerp), + 'u_exaggeration': new ref_properties.Uniform1f(context, locations.u_exaggeration), + 'u_depth': new ref_properties.Uniform1i(context, locations.u_depth), + 'u_depth_size_inv': new ref_properties.Uniform2f(context, locations.u_depth_size_inv), + 'u_meter_to_dem': new ref_properties.Uniform1f(context, locations.u_meter_to_dem), + 'u_label_plane_matrix_inv': new ref_properties.UniformMatrix4f(context, locations.u_label_plane_matrix_inv) +}); +function defaultTerrainUniforms(encoding) { + return { + 'u_dem': 2, + 'u_dem_prev': 4, + 'u_dem_unpack': ref_properties.DEMData.getUnpackVector(encoding), + 'u_dem_tl': [ + 0, + 0 + ], + 'u_dem_tl_prev': [ + 0, + 0 + ], + 'u_dem_scale': 0, + 'u_dem_scale_prev': 0, + 'u_dem_size': 0, + 'u_dem_lerp': 1, + 'u_depth': 3, + 'u_depth_size_inv': [ + 0, + 0 + ], + 'u_exaggeration': 0 + }; +} + +function getTokenizedAttributesAndUniforms(array) { + const result = []; + for (let i = 0; i < array.length; i++) { + if (array[i] === null) + continue; + const token = array[i].split(' '); + result.push(token.pop()); + } + return result; +} +class Program { + static cacheKey(name, defines, programConfiguration) { + let key = `${ name }${ programConfiguration ? programConfiguration.cacheKey : '' }`; + for (const define of defines) { + key += `/${ define }`; + } + return key; + } + constructor(context, name, source, configuration, fixedUniforms, fixedDefines) { + const gl = context.gl; + this.program = gl.createProgram(); + const staticAttrInfo = getTokenizedAttributesAndUniforms(source.staticAttributes); + const dynamicAttrInfo = configuration ? configuration.getBinderAttributes() : []; + const allAttrInfo = staticAttrInfo.concat(dynamicAttrInfo); + const staticUniformsInfo = source.staticUniforms ? getTokenizedAttributesAndUniforms(source.staticUniforms) : []; + const dynamicUniformsInfo = configuration ? configuration.getBinderUniforms() : []; + const uniformList = staticUniformsInfo.concat(dynamicUniformsInfo); + const allUniformsInfo = []; + for (const uniform of uniformList) { + if (allUniformsInfo.indexOf(uniform) < 0) + allUniformsInfo.push(uniform); + } + let defines = configuration ? configuration.defines() : []; + defines = defines.concat(fixedDefines.map(define => `#define ${ define }`)); + const fragmentSource = defines.concat(prelude.fragmentSource, source.fragmentSource).join('\n'); + const vertexSource = defines.concat(prelude.vertexSource, preludeTerrain.vertexSource, source.vertexSource).join('\n'); + const fragmentShader = gl.createShader(gl.FRAGMENT_SHADER); + if (gl.isContextLost()) { + this.failedToCreate = true; + return; + } + gl.shaderSource(fragmentShader, fragmentSource); + gl.compileShader(fragmentShader); + gl.attachShader(this.program, fragmentShader); + const vertexShader = gl.createShader(gl.VERTEX_SHADER); + if (gl.isContextLost()) { + this.failedToCreate = true; + return; + } + gl.shaderSource(vertexShader, vertexSource); + gl.compileShader(vertexShader); + gl.attachShader(this.program, vertexShader); + this.attributes = {}; + const uniformLocations = {}; + this.numAttributes = allAttrInfo.length; + for (let i = 0; i < this.numAttributes; i++) { + if (allAttrInfo[i]) { + gl.bindAttribLocation(this.program, i, allAttrInfo[i]); + this.attributes[allAttrInfo[i]] = i; + } + } + gl.linkProgram(this.program); + gl.deleteShader(vertexShader); + gl.deleteShader(fragmentShader); + for (let it = 0; it < allUniformsInfo.length; it++) { + const uniform = allUniformsInfo[it]; + if (uniform && !uniformLocations[uniform]) { + const uniformLocation = gl.getUniformLocation(this.program, uniform); + if (uniformLocation) { + uniformLocations[uniform] = uniformLocation; + } + } + } + this.fixedUniforms = fixedUniforms(context, uniformLocations); + this.binderUniforms = configuration ? configuration.getUniforms(context, uniformLocations) : []; + if (fixedDefines.indexOf('TERRAIN') !== -1) { + this.terrainUniforms = terrainUniforms(context, uniformLocations); + } + } + setTerrainUniformValues(context, terrainUnformValues) { + if (!this.terrainUniforms) + return; + const uniforms = this.terrainUniforms; + if (this.failedToCreate) + return; + context.program.set(this.program); + for (const name in terrainUnformValues) { + uniforms[name].set(terrainUnformValues[name]); + } + } + draw(context, drawMode, depthMode, stencilMode, colorMode, cullFaceMode, uniformValues, layerID, layoutVertexBuffer, indexBuffer, segments, currentProperties, zoom, configuration, dynamicLayoutBuffer, dynamicLayoutBuffer2) { + const gl = context.gl; + if (this.failedToCreate) + return; + context.program.set(this.program); + context.setDepthMode(depthMode); + context.setStencilMode(stencilMode); + context.setColorMode(colorMode); + context.setCullFace(cullFaceMode); + for (const name in this.fixedUniforms) { + this.fixedUniforms[name].set(uniformValues[name]); + } + if (configuration) { + configuration.setUniforms(context, this.binderUniforms, currentProperties, { zoom: zoom }); + } + const primitiveSize = { + [gl.LINES]: 2, + [gl.TRIANGLES]: 3, + [gl.LINE_STRIP]: 1 + }[drawMode]; + for (const segment of segments.get()) { + const vaos = segment.vaos || (segment.vaos = {}); + const vao = vaos[layerID] || (vaos[layerID] = new VertexArrayObject()); + vao.bind(context, this, layoutVertexBuffer, configuration ? configuration.getPaintVertexBuffers() : [], indexBuffer, segment.vertexOffset, dynamicLayoutBuffer, dynamicLayoutBuffer2); + gl.drawElements(drawMode, segment.primitiveLength * primitiveSize, gl.UNSIGNED_SHORT, segment.primitiveOffset * primitiveSize * 2); + } + } +} + +function patternUniformValues(crossfade, painter, tile) { + const tileRatio = 1 / pixelsToTileUnits(tile, 1, painter.transform.tileZoom); + const numTiles = Math.pow(2, tile.tileID.overscaledZ); + const tileSizeAtNearestZoom = tile.tileSize * Math.pow(2, painter.transform.tileZoom) / numTiles; + const pixelX = tileSizeAtNearestZoom * (tile.tileID.canonical.x + tile.tileID.wrap * numTiles); + const pixelY = tileSizeAtNearestZoom * tile.tileID.canonical.y; + return { + 'u_image': 0, + 'u_texsize': tile.imageAtlasTexture.size, + 'u_scale': [ + tileRatio, + crossfade.fromScale, + crossfade.toScale + ], + 'u_fade': crossfade.t, + 'u_pixel_coord_upper': [ + pixelX >> 16, + pixelY >> 16 + ], + 'u_pixel_coord_lower': [ + pixelX & 65535, + pixelY & 65535 + ] + }; +} +function bgPatternUniformValues(image, crossfade, painter, tile) { + const imagePosA = painter.imageManager.getPattern(image.from.toString()); + const imagePosB = painter.imageManager.getPattern(image.to.toString()); + const {width, height} = painter.imageManager.getPixelSize(); + const numTiles = Math.pow(2, tile.tileID.overscaledZ); + const tileSizeAtNearestZoom = tile.tileSize * Math.pow(2, painter.transform.tileZoom) / numTiles; + const pixelX = tileSizeAtNearestZoom * (tile.tileID.canonical.x + tile.tileID.wrap * numTiles); + const pixelY = tileSizeAtNearestZoom * tile.tileID.canonical.y; + return { + 'u_image': 0, + 'u_pattern_tl_a': imagePosA.tl, + 'u_pattern_br_a': imagePosA.br, + 'u_pattern_tl_b': imagePosB.tl, + 'u_pattern_br_b': imagePosB.br, + 'u_texsize': [ + width, + height + ], + 'u_mix': crossfade.t, + 'u_pattern_size_a': imagePosA.displaySize, + 'u_pattern_size_b': imagePosB.displaySize, + 'u_scale_a': crossfade.fromScale, + 'u_scale_b': crossfade.toScale, + 'u_tile_units_to_pixels': 1 / pixelsToTileUnits(tile, 1, painter.transform.tileZoom), + 'u_pixel_coord_upper': [ + pixelX >> 16, + pixelY >> 16 + ], + 'u_pixel_coord_lower': [ + pixelX & 65535, + pixelY & 65535 + ] + }; +} + +const fillExtrusionUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_lightpos': new ref_properties.Uniform3f(context, locations.u_lightpos), + 'u_lightintensity': new ref_properties.Uniform1f(context, locations.u_lightintensity), + 'u_lightcolor': new ref_properties.Uniform3f(context, locations.u_lightcolor), + 'u_vertical_gradient': new ref_properties.Uniform1f(context, locations.u_vertical_gradient), + 'u_opacity': new ref_properties.Uniform1f(context, locations.u_opacity) +}); +const fillExtrusionPatternUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_lightpos': new ref_properties.Uniform3f(context, locations.u_lightpos), + 'u_lightintensity': new ref_properties.Uniform1f(context, locations.u_lightintensity), + 'u_lightcolor': new ref_properties.Uniform3f(context, locations.u_lightcolor), + 'u_vertical_gradient': new ref_properties.Uniform1f(context, locations.u_vertical_gradient), + 'u_height_factor': new ref_properties.Uniform1f(context, locations.u_height_factor), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_texsize': new ref_properties.Uniform2f(context, locations.u_texsize), + 'u_pixel_coord_upper': new ref_properties.Uniform2f(context, locations.u_pixel_coord_upper), + 'u_pixel_coord_lower': new ref_properties.Uniform2f(context, locations.u_pixel_coord_lower), + 'u_scale': new ref_properties.Uniform3f(context, locations.u_scale), + 'u_fade': new ref_properties.Uniform1f(context, locations.u_fade), + 'u_opacity': new ref_properties.Uniform1f(context, locations.u_opacity) +}); +const fillExtrusionUniformValues = (matrix, painter, shouldUseVerticalGradient, opacity) => { + const light = painter.style.light; + const _lp = light.properties.get('position'); + const lightPos = [ + _lp.x, + _lp.y, + _lp.z + ]; + const lightMat = ref_properties.create$1(); + const anchor = light.properties.get('anchor'); + if (anchor === 'viewport') { + ref_properties.fromRotation(lightMat, -painter.transform.angle); + ref_properties.transformMat3(lightPos, lightPos, lightMat); + } + const lightColor = light.properties.get('color'); + return { + 'u_matrix': matrix, + 'u_lightpos': lightPos, + 'u_lightintensity': light.properties.get('intensity'), + 'u_lightcolor': [ + lightColor.r, + lightColor.g, + lightColor.b + ], + 'u_vertical_gradient': +shouldUseVerticalGradient, + 'u_opacity': opacity + }; +}; +const fillExtrusionPatternUniformValues = (matrix, painter, shouldUseVerticalGradient, opacity, coord, crossfade, tile) => { + return ref_properties.extend(fillExtrusionUniformValues(matrix, painter, shouldUseVerticalGradient, opacity), patternUniformValues(crossfade, painter, tile), { 'u_height_factor': -Math.pow(2, coord.overscaledZ) / tile.tileSize / 8 }); +}; + +const fillUniforms = (context, locations) => ({ 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix) }); +const fillPatternUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_texsize': new ref_properties.Uniform2f(context, locations.u_texsize), + 'u_pixel_coord_upper': new ref_properties.Uniform2f(context, locations.u_pixel_coord_upper), + 'u_pixel_coord_lower': new ref_properties.Uniform2f(context, locations.u_pixel_coord_lower), + 'u_scale': new ref_properties.Uniform3f(context, locations.u_scale), + 'u_fade': new ref_properties.Uniform1f(context, locations.u_fade) +}); +const fillOutlineUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_world': new ref_properties.Uniform2f(context, locations.u_world) +}); +const fillOutlinePatternUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_world': new ref_properties.Uniform2f(context, locations.u_world), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_texsize': new ref_properties.Uniform2f(context, locations.u_texsize), + 'u_pixel_coord_upper': new ref_properties.Uniform2f(context, locations.u_pixel_coord_upper), + 'u_pixel_coord_lower': new ref_properties.Uniform2f(context, locations.u_pixel_coord_lower), + 'u_scale': new ref_properties.Uniform3f(context, locations.u_scale), + 'u_fade': new ref_properties.Uniform1f(context, locations.u_fade) +}); +const fillUniformValues = matrix => ({ 'u_matrix': matrix }); +const fillPatternUniformValues = (matrix, painter, crossfade, tile) => ref_properties.extend(fillUniformValues(matrix), patternUniformValues(crossfade, painter, tile)); +const fillOutlineUniformValues = (matrix, drawingBufferSize) => ({ + 'u_matrix': matrix, + 'u_world': drawingBufferSize +}); +const fillOutlinePatternUniformValues = (matrix, painter, crossfade, tile, drawingBufferSize) => ref_properties.extend(fillPatternUniformValues(matrix, painter, crossfade, tile), { 'u_world': drawingBufferSize }); + +const circleUniforms = (context, locations) => ({ + 'u_camera_to_center_distance': new ref_properties.Uniform1f(context, locations.u_camera_to_center_distance), + 'u_extrude_scale': new ref_properties.Uniform2f(context, locations.u_extrude_scale), + 'u_device_pixel_ratio': new ref_properties.Uniform1f(context, locations.u_device_pixel_ratio), + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix) +}); +const circleUniformValues = (painter, coord, tile, layer) => { + const transform = painter.transform; + let extrudeScale; + if (layer.paint.get('circle-pitch-alignment') === 'map') { + const pixelRatio = pixelsToTileUnits(tile, 1, transform.zoom); + extrudeScale = [ + pixelRatio, + pixelRatio + ]; + } else { + extrudeScale = transform.pixelsToGLUnits; + } + return { + 'u_camera_to_center_distance': transform.cameraToCenterDistance, + 'u_matrix': painter.translatePosMatrix(coord.posMatrix, tile, layer.paint.get('circle-translate'), layer.paint.get('circle-translate-anchor')), + 'u_device_pixel_ratio': ref_properties.browser.devicePixelRatio, + 'u_extrude_scale': extrudeScale + }; +}; +const circleDefinesValues = layer => { + const values = []; + if (layer.paint.get('circle-pitch-alignment') === 'map') + values.push('PITCH_WITH_MAP'); + if (layer.paint.get('circle-pitch-scale') === 'map') + values.push('SCALE_WITH_MAP'); + return values; +}; + +const collisionUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_camera_to_center_distance': new ref_properties.Uniform1f(context, locations.u_camera_to_center_distance), + 'u_extrude_scale': new ref_properties.Uniform2f(context, locations.u_extrude_scale) +}); +const collisionCircleUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_inv_matrix': new ref_properties.UniformMatrix4f(context, locations.u_inv_matrix), + 'u_camera_to_center_distance': new ref_properties.Uniform1f(context, locations.u_camera_to_center_distance), + 'u_viewport_size': new ref_properties.Uniform2f(context, locations.u_viewport_size) +}); +const collisionUniformValues = (matrix, transform, tile) => { + const pixelRatio = ref_properties.EXTENT / tile.tileSize; + return { + 'u_matrix': matrix, + 'u_camera_to_center_distance': transform.cameraToCenterDistance, + 'u_extrude_scale': [ + transform.pixelsToGLUnits[0] / pixelRatio, + transform.pixelsToGLUnits[1] / pixelRatio + ] + }; +}; +const collisionCircleUniformValues = (matrix, invMatrix, transform) => { + return { + 'u_matrix': matrix, + 'u_inv_matrix': invMatrix, + 'u_camera_to_center_distance': transform.cameraToCenterDistance, + 'u_viewport_size': [ + transform.width, + transform.height + ] + }; +}; + +const debugUniforms = (context, locations) => ({ + 'u_color': new ref_properties.UniformColor(context, locations.u_color), + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_overlay': new ref_properties.Uniform1i(context, locations.u_overlay), + 'u_overlay_scale': new ref_properties.Uniform1f(context, locations.u_overlay_scale) +}); +const debugUniformValues = (matrix, color, scaleRatio = 1) => ({ + 'u_matrix': matrix, + 'u_color': color, + 'u_overlay': 0, + 'u_overlay_scale': scaleRatio +}); + +const heatmapUniforms = (context, locations) => ({ + 'u_extrude_scale': new ref_properties.Uniform1f(context, locations.u_extrude_scale), + 'u_intensity': new ref_properties.Uniform1f(context, locations.u_intensity), + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix) +}); +const heatmapTextureUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_world': new ref_properties.Uniform2f(context, locations.u_world), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_color_ramp': new ref_properties.Uniform1i(context, locations.u_color_ramp), + 'u_opacity': new ref_properties.Uniform1f(context, locations.u_opacity) +}); +const heatmapUniformValues = (matrix, tile, zoom, intensity) => ({ + 'u_matrix': matrix, + 'u_extrude_scale': pixelsToTileUnits(tile, 1, zoom), + 'u_intensity': intensity +}); +const heatmapTextureUniformValues = (painter, layer, textureUnit, colorRampUnit) => { + const matrix = ref_properties.create(); + ref_properties.ortho(matrix, 0, painter.width, painter.height, 0, 0, 1); + const gl = painter.context.gl; + return { + 'u_matrix': matrix, + 'u_world': [ + gl.drawingBufferWidth, + gl.drawingBufferHeight + ], + 'u_image': textureUnit, + 'u_color_ramp': colorRampUnit, + 'u_opacity': layer.paint.get('heatmap-opacity') + }; +}; + +const lineUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_ratio': new ref_properties.Uniform1f(context, locations.u_ratio), + 'u_device_pixel_ratio': new ref_properties.Uniform1f(context, locations.u_device_pixel_ratio), + 'u_units_to_pixels': new ref_properties.Uniform2f(context, locations.u_units_to_pixels) +}); +const lineGradientUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_ratio': new ref_properties.Uniform1f(context, locations.u_ratio), + 'u_device_pixel_ratio': new ref_properties.Uniform1f(context, locations.u_device_pixel_ratio), + 'u_units_to_pixels': new ref_properties.Uniform2f(context, locations.u_units_to_pixels), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_image_height': new ref_properties.Uniform1f(context, locations.u_image_height) +}); +const linePatternUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_texsize': new ref_properties.Uniform2f(context, locations.u_texsize), + 'u_ratio': new ref_properties.Uniform1f(context, locations.u_ratio), + 'u_device_pixel_ratio': new ref_properties.Uniform1f(context, locations.u_device_pixel_ratio), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_units_to_pixels': new ref_properties.Uniform2f(context, locations.u_units_to_pixels), + 'u_scale': new ref_properties.Uniform3f(context, locations.u_scale), + 'u_fade': new ref_properties.Uniform1f(context, locations.u_fade) +}); +const lineSDFUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_ratio': new ref_properties.Uniform1f(context, locations.u_ratio), + 'u_device_pixel_ratio': new ref_properties.Uniform1f(context, locations.u_device_pixel_ratio), + 'u_units_to_pixels': new ref_properties.Uniform2f(context, locations.u_units_to_pixels), + 'u_patternscale_a': new ref_properties.Uniform2f(context, locations.u_patternscale_a), + 'u_patternscale_b': new ref_properties.Uniform2f(context, locations.u_patternscale_b), + 'u_sdfgamma': new ref_properties.Uniform1f(context, locations.u_sdfgamma), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_tex_y_a': new ref_properties.Uniform1f(context, locations.u_tex_y_a), + 'u_tex_y_b': new ref_properties.Uniform1f(context, locations.u_tex_y_b), + 'u_mix': new ref_properties.Uniform1f(context, locations.u_mix) +}); +const lineUniformValues = (painter, tile, layer, matrix) => { + const transform = painter.transform; + return { + 'u_matrix': calculateMatrix(painter, tile, layer, matrix), + 'u_ratio': 1 / pixelsToTileUnits(tile, 1, transform.zoom), + 'u_device_pixel_ratio': ref_properties.browser.devicePixelRatio, + 'u_units_to_pixels': [ + 1 / transform.pixelsToGLUnits[0], + 1 / transform.pixelsToGLUnits[1] + ] + }; +}; +const lineGradientUniformValues = (painter, tile, layer, matrix, imageHeight) => { + return ref_properties.extend(lineUniformValues(painter, tile, layer, matrix), { + 'u_image': 0, + 'u_image_height': imageHeight + }); +}; +const linePatternUniformValues = (painter, tile, layer, crossfade, matrix) => { + const transform = painter.transform; + const tileZoomRatio = calculateTileRatio(tile, transform); + return { + 'u_matrix': calculateMatrix(painter, tile, layer, matrix), + 'u_texsize': tile.imageAtlasTexture.size, + 'u_ratio': 1 / pixelsToTileUnits(tile, 1, transform.zoom), + 'u_device_pixel_ratio': ref_properties.browser.devicePixelRatio, + 'u_image': 0, + 'u_scale': [ + tileZoomRatio, + crossfade.fromScale, + crossfade.toScale + ], + 'u_fade': crossfade.t, + 'u_units_to_pixels': [ + 1 / transform.pixelsToGLUnits[0], + 1 / transform.pixelsToGLUnits[1] + ] + }; +}; +const lineSDFUniformValues = (painter, tile, layer, dasharray, crossfade, matrix) => { + const transform = painter.transform; + const lineAtlas = painter.lineAtlas; + const tileRatio = calculateTileRatio(tile, transform); + const round = layer.layout.get('line-cap') === 'round'; + const posA = lineAtlas.getDash(dasharray.from, round); + const posB = lineAtlas.getDash(dasharray.to, round); + const widthA = posA.width * crossfade.fromScale; + const widthB = posB.width * crossfade.toScale; + return ref_properties.extend(lineUniformValues(painter, tile, layer, matrix), { + 'u_patternscale_a': [ + tileRatio / widthA, + -posA.height / 2 + ], + 'u_patternscale_b': [ + tileRatio / widthB, + -posB.height / 2 + ], + 'u_sdfgamma': lineAtlas.width / (Math.min(widthA, widthB) * 256 * ref_properties.browser.devicePixelRatio) / 2, + 'u_image': 0, + 'u_tex_y_a': posA.y, + 'u_tex_y_b': posB.y, + 'u_mix': crossfade.t + }); +}; +function calculateTileRatio(tile, transform) { + return 1 / pixelsToTileUnits(tile, 1, transform.tileZoom); +} +function calculateMatrix(painter, tile, layer, matrix) { + return painter.translatePosMatrix(matrix ? matrix : tile.tileID.posMatrix, tile, layer.paint.get('line-translate'), layer.paint.get('line-translate-anchor')); +} + +const rasterUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_tl_parent': new ref_properties.Uniform2f(context, locations.u_tl_parent), + 'u_scale_parent': new ref_properties.Uniform1f(context, locations.u_scale_parent), + 'u_buffer_scale': new ref_properties.Uniform1f(context, locations.u_buffer_scale), + 'u_fade_t': new ref_properties.Uniform1f(context, locations.u_fade_t), + 'u_opacity': new ref_properties.Uniform1f(context, locations.u_opacity), + 'u_image0': new ref_properties.Uniform1i(context, locations.u_image0), + 'u_image1': new ref_properties.Uniform1i(context, locations.u_image1), + 'u_brightness_low': new ref_properties.Uniform1f(context, locations.u_brightness_low), + 'u_brightness_high': new ref_properties.Uniform1f(context, locations.u_brightness_high), + 'u_saturation_factor': new ref_properties.Uniform1f(context, locations.u_saturation_factor), + 'u_contrast_factor': new ref_properties.Uniform1f(context, locations.u_contrast_factor), + 'u_spin_weights': new ref_properties.Uniform3f(context, locations.u_spin_weights) +}); +const rasterUniformValues = (matrix, parentTL, parentScaleBy, fade, layer) => ({ + 'u_matrix': matrix, + 'u_tl_parent': parentTL, + 'u_scale_parent': parentScaleBy, + 'u_buffer_scale': 1, + 'u_fade_t': fade.mix, + 'u_opacity': fade.opacity * layer.paint.get('raster-opacity'), + 'u_image0': 0, + 'u_image1': 1, + 'u_brightness_low': layer.paint.get('raster-brightness-min'), + 'u_brightness_high': layer.paint.get('raster-brightness-max'), + 'u_saturation_factor': saturationFactor(layer.paint.get('raster-saturation')), + 'u_contrast_factor': contrastFactor(layer.paint.get('raster-contrast')), + 'u_spin_weights': spinWeights(layer.paint.get('raster-hue-rotate')) +}); +function spinWeights(angle) { + angle *= Math.PI / 180; + const s = Math.sin(angle); + const c = Math.cos(angle); + return [ + (2 * c + 1) / 3, + (-Math.sqrt(3) * s - c + 1) / 3, + (Math.sqrt(3) * s - c + 1) / 3 + ]; +} +function contrastFactor(contrast) { + return contrast > 0 ? 1 / (1 - contrast) : 1 + contrast; +} +function saturationFactor(saturation) { + return saturation > 0 ? 1 - 1 / (1.001 - saturation) : -saturation; +} + +const symbolIconUniforms = (context, locations) => ({ + 'u_is_size_zoom_constant': new ref_properties.Uniform1i(context, locations.u_is_size_zoom_constant), + 'u_is_size_feature_constant': new ref_properties.Uniform1i(context, locations.u_is_size_feature_constant), + 'u_size_t': new ref_properties.Uniform1f(context, locations.u_size_t), + 'u_size': new ref_properties.Uniform1f(context, locations.u_size), + 'u_camera_to_center_distance': new ref_properties.Uniform1f(context, locations.u_camera_to_center_distance), + 'u_pitch': new ref_properties.Uniform1f(context, locations.u_pitch), + 'u_rotate_symbol': new ref_properties.Uniform1i(context, locations.u_rotate_symbol), + 'u_aspect_ratio': new ref_properties.Uniform1f(context, locations.u_aspect_ratio), + 'u_fade_change': new ref_properties.Uniform1f(context, locations.u_fade_change), + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_label_plane_matrix': new ref_properties.UniformMatrix4f(context, locations.u_label_plane_matrix), + 'u_coord_matrix': new ref_properties.UniformMatrix4f(context, locations.u_coord_matrix), + 'u_is_text': new ref_properties.Uniform1i(context, locations.u_is_text), + 'u_pitch_with_map': new ref_properties.Uniform1i(context, locations.u_pitch_with_map), + 'u_texsize': new ref_properties.Uniform2f(context, locations.u_texsize), + 'u_texture': new ref_properties.Uniform1i(context, locations.u_texture) +}); +const symbolSDFUniforms = (context, locations) => ({ + 'u_is_size_zoom_constant': new ref_properties.Uniform1i(context, locations.u_is_size_zoom_constant), + 'u_is_size_feature_constant': new ref_properties.Uniform1i(context, locations.u_is_size_feature_constant), + 'u_size_t': new ref_properties.Uniform1f(context, locations.u_size_t), + 'u_size': new ref_properties.Uniform1f(context, locations.u_size), + 'u_camera_to_center_distance': new ref_properties.Uniform1f(context, locations.u_camera_to_center_distance), + 'u_pitch': new ref_properties.Uniform1f(context, locations.u_pitch), + 'u_rotate_symbol': new ref_properties.Uniform1i(context, locations.u_rotate_symbol), + 'u_aspect_ratio': new ref_properties.Uniform1f(context, locations.u_aspect_ratio), + 'u_fade_change': new ref_properties.Uniform1f(context, locations.u_fade_change), + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_label_plane_matrix': new ref_properties.UniformMatrix4f(context, locations.u_label_plane_matrix), + 'u_coord_matrix': new ref_properties.UniformMatrix4f(context, locations.u_coord_matrix), + 'u_is_text': new ref_properties.Uniform1i(context, locations.u_is_text), + 'u_pitch_with_map': new ref_properties.Uniform1i(context, locations.u_pitch_with_map), + 'u_texsize': new ref_properties.Uniform2f(context, locations.u_texsize), + 'u_texture': new ref_properties.Uniform1i(context, locations.u_texture), + 'u_gamma_scale': new ref_properties.Uniform1f(context, locations.u_gamma_scale), + 'u_device_pixel_ratio': new ref_properties.Uniform1f(context, locations.u_device_pixel_ratio), + 'u_is_halo': new ref_properties.Uniform1i(context, locations.u_is_halo) +}); +const symbolTextAndIconUniforms = (context, locations) => ({ + 'u_is_size_zoom_constant': new ref_properties.Uniform1i(context, locations.u_is_size_zoom_constant), + 'u_is_size_feature_constant': new ref_properties.Uniform1i(context, locations.u_is_size_feature_constant), + 'u_size_t': new ref_properties.Uniform1f(context, locations.u_size_t), + 'u_size': new ref_properties.Uniform1f(context, locations.u_size), + 'u_camera_to_center_distance': new ref_properties.Uniform1f(context, locations.u_camera_to_center_distance), + 'u_pitch': new ref_properties.Uniform1f(context, locations.u_pitch), + 'u_rotate_symbol': new ref_properties.Uniform1i(context, locations.u_rotate_symbol), + 'u_aspect_ratio': new ref_properties.Uniform1f(context, locations.u_aspect_ratio), + 'u_fade_change': new ref_properties.Uniform1f(context, locations.u_fade_change), + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_label_plane_matrix': new ref_properties.UniformMatrix4f(context, locations.u_label_plane_matrix), + 'u_coord_matrix': new ref_properties.UniformMatrix4f(context, locations.u_coord_matrix), + 'u_is_text': new ref_properties.Uniform1i(context, locations.u_is_text), + 'u_pitch_with_map': new ref_properties.Uniform1i(context, locations.u_pitch_with_map), + 'u_texsize': new ref_properties.Uniform2f(context, locations.u_texsize), + 'u_texsize_icon': new ref_properties.Uniform2f(context, locations.u_texsize_icon), + 'u_texture': new ref_properties.Uniform1i(context, locations.u_texture), + 'u_texture_icon': new ref_properties.Uniform1i(context, locations.u_texture_icon), + 'u_gamma_scale': new ref_properties.Uniform1f(context, locations.u_gamma_scale), + 'u_device_pixel_ratio': new ref_properties.Uniform1f(context, locations.u_device_pixel_ratio), + 'u_is_halo': new ref_properties.Uniform1i(context, locations.u_is_halo) +}); +const symbolIconUniformValues = (functionType, size, rotateInShader, pitchWithMap, painter, matrix, labelPlaneMatrix, glCoordMatrix, isText, texSize) => { + const transform = painter.transform; + return { + 'u_is_size_zoom_constant': +(functionType === 'constant' || functionType === 'source'), + 'u_is_size_feature_constant': +(functionType === 'constant' || functionType === 'camera'), + 'u_size_t': size ? size.uSizeT : 0, + 'u_size': size ? size.uSize : 0, + 'u_camera_to_center_distance': transform.cameraToCenterDistance, + 'u_pitch': transform.pitch / 360 * 2 * Math.PI, + 'u_rotate_symbol': +rotateInShader, + 'u_aspect_ratio': transform.width / transform.height, + 'u_fade_change': painter.options.fadeDuration ? painter.symbolFadeChange : 1, + 'u_matrix': matrix, + 'u_label_plane_matrix': labelPlaneMatrix, + 'u_coord_matrix': glCoordMatrix, + 'u_is_text': +isText, + 'u_pitch_with_map': +pitchWithMap, + 'u_texsize': texSize, + 'u_texture': 0 + }; +}; +const symbolSDFUniformValues = (functionType, size, rotateInShader, pitchWithMap, painter, matrix, labelPlaneMatrix, glCoordMatrix, isText, texSize, isHalo) => { + const {cameraToCenterDistance, _pitch} = painter.transform; + return ref_properties.extend(symbolIconUniformValues(functionType, size, rotateInShader, pitchWithMap, painter, matrix, labelPlaneMatrix, glCoordMatrix, isText, texSize), { + 'u_gamma_scale': pitchWithMap ? cameraToCenterDistance * Math.cos(painter.terrain ? 0 : _pitch) : 1, + 'u_device_pixel_ratio': ref_properties.browser.devicePixelRatio, + 'u_is_halo': +isHalo + }); +}; +const symbolTextAndIconUniformValues = (functionType, size, rotateInShader, pitchWithMap, painter, matrix, labelPlaneMatrix, glCoordMatrix, texSizeSDF, texSizeIcon) => { + return ref_properties.extend(symbolSDFUniformValues(functionType, size, rotateInShader, pitchWithMap, painter, matrix, labelPlaneMatrix, glCoordMatrix, true, texSizeSDF, true), { + 'u_texsize_icon': texSizeIcon, + 'u_texture_icon': 1 + }); +}; + +const backgroundUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_opacity': new ref_properties.Uniform1f(context, locations.u_opacity), + 'u_color': new ref_properties.UniformColor(context, locations.u_color) +}); +const backgroundPatternUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_opacity': new ref_properties.Uniform1f(context, locations.u_opacity), + 'u_image': new ref_properties.Uniform1i(context, locations.u_image), + 'u_pattern_tl_a': new ref_properties.Uniform2f(context, locations.u_pattern_tl_a), + 'u_pattern_br_a': new ref_properties.Uniform2f(context, locations.u_pattern_br_a), + 'u_pattern_tl_b': new ref_properties.Uniform2f(context, locations.u_pattern_tl_b), + 'u_pattern_br_b': new ref_properties.Uniform2f(context, locations.u_pattern_br_b), + 'u_texsize': new ref_properties.Uniform2f(context, locations.u_texsize), + 'u_mix': new ref_properties.Uniform1f(context, locations.u_mix), + 'u_pattern_size_a': new ref_properties.Uniform2f(context, locations.u_pattern_size_a), + 'u_pattern_size_b': new ref_properties.Uniform2f(context, locations.u_pattern_size_b), + 'u_scale_a': new ref_properties.Uniform1f(context, locations.u_scale_a), + 'u_scale_b': new ref_properties.Uniform1f(context, locations.u_scale_b), + 'u_pixel_coord_upper': new ref_properties.Uniform2f(context, locations.u_pixel_coord_upper), + 'u_pixel_coord_lower': new ref_properties.Uniform2f(context, locations.u_pixel_coord_lower), + 'u_tile_units_to_pixels': new ref_properties.Uniform1f(context, locations.u_tile_units_to_pixels) +}); +const backgroundUniformValues = (matrix, opacity, color) => ({ + 'u_matrix': matrix, + 'u_opacity': opacity, + 'u_color': color +}); +const backgroundPatternUniformValues = (matrix, opacity, painter, image, tile, crossfade) => ref_properties.extend(bgPatternUniformValues(image, crossfade, painter, tile), { + 'u_matrix': matrix, + 'u_opacity': opacity +}); + +const skyboxUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_sun_direction': new ref_properties.Uniform3f(context, locations.u_sun_direction), + 'u_cubemap': new ref_properties.Uniform1i(context, locations.u_cubemap), + 'u_opacity': new ref_properties.Uniform1f(context, locations.u_opacity), + 'u_temporal_offset': new ref_properties.Uniform1f(context, locations.u_temporal_offset) +}); +const skyboxUniformValues = (matrix, sunDirection, cubemap, opacity, temporalOffset) => ({ + 'u_matrix': matrix, + 'u_sun_direction': sunDirection, + 'u_cubemap': cubemap, + 'u_opacity': opacity, + 'u_temporal_offset': temporalOffset +}); +const skyboxGradientUniforms = (context, locations) => ({ + 'u_matrix': new ref_properties.UniformMatrix4f(context, locations.u_matrix), + 'u_color_ramp': new ref_properties.Uniform1i(context, locations.u_color_ramp), + 'u_center_direction': new ref_properties.Uniform3f(context, locations.u_center_direction), + 'u_radius': new ref_properties.Uniform1f(context, locations.u_radius), + 'u_opacity': new ref_properties.Uniform1f(context, locations.u_opacity), + 'u_temporal_offset': new ref_properties.Uniform1f(context, locations.u_temporal_offset) +}); +const skyboxGradientUniformValues = (matrix, centerDirection, radius, opacity, temporalOffset) => { + return { + 'u_matrix': matrix, + 'u_color_ramp': 0, + 'u_center_direction': centerDirection, + 'u_radius': ref_properties.degToRad(radius), + 'u_opacity': opacity, + 'u_temporal_offset': temporalOffset + }; +}; + +const skyboxCaptureUniforms = (context, locations) => ({ + 'u_matrix_3f': new ref_properties.UniformMatrix3f(context, locations.u_matrix_3f), + 'u_sun_direction': new ref_properties.Uniform3f(context, locations.u_sun_direction), + 'u_sun_intensity': new ref_properties.Uniform1f(context, locations.u_sun_intensity), + 'u_color_tint_r': new ref_properties.Uniform4f(context, locations.u_color_tint_r), + 'u_color_tint_m': new ref_properties.Uniform4f(context, locations.u_color_tint_m), + 'u_luminance': new ref_properties.Uniform1f(context, locations.u_luminance) +}); +const skyboxCaptureUniformValues = (matrix, sunDirection, sunIntensity, atmosphereColor, atmosphereHaloColor) => ({ + 'u_matrix_3f': matrix, + 'u_sun_direction': sunDirection, + 'u_sun_intensity': sunIntensity, + 'u_color_tint_r': [ + atmosphereColor.r, + atmosphereColor.g, + atmosphereColor.b, + atmosphereColor.a + ], + 'u_color_tint_m': [ + atmosphereHaloColor.r, + atmosphereHaloColor.g, + atmosphereHaloColor.b, + atmosphereHaloColor.a + ], + 'u_luminance': 0.00005 +}); + +const programUniforms = { + fillExtrusion: fillExtrusionUniforms, + fillExtrusionPattern: fillExtrusionPatternUniforms, + fill: fillUniforms, + fillPattern: fillPatternUniforms, + fillOutline: fillOutlineUniforms, + fillOutlinePattern: fillOutlinePatternUniforms, + circle: circleUniforms, + collisionBox: collisionUniforms, + collisionCircle: collisionCircleUniforms, + debug: debugUniforms, + clippingMask: clippingMaskUniforms, + heatmap: heatmapUniforms, + heatmapTexture: heatmapTextureUniforms, + hillshade: hillshadeUniforms, + hillshadePrepare: hillshadePrepareUniforms, + line: lineUniforms, + lineGradient: lineGradientUniforms, + linePattern: linePatternUniforms, + lineSDF: lineSDFUniforms, + raster: rasterUniforms, + symbolIcon: symbolIconUniforms, + symbolSDF: symbolSDFUniforms, + symbolTextAndIcon: symbolTextAndIconUniforms, + background: backgroundUniforms, + backgroundPattern: backgroundPatternUniforms, + terrainRaster: terrainRasterUniforms, + terrainDepth: terrainRasterUniforms, + skybox: skyboxUniforms, + skyboxGradient: skyboxGradientUniforms, + skyboxCapture: skyboxCaptureUniforms +}; + +let quadTriangles; +function drawCollisionDebug(painter, sourceCache, layer, coords, translate, translateAnchor, isText) { + const context = painter.context; + const gl = context.gl; + const program = painter.useProgram('collisionBox'); + const tileBatches = []; + let circleCount = 0; + let circleOffset = 0; + for (let i = 0; i < coords.length; i++) { + const coord = coords[i]; + const tile = sourceCache.getTile(coord); + const bucket = tile.getBucket(layer); + if (!bucket) + continue; + let posMatrix = coord.posMatrix; + if (translate[0] !== 0 || translate[1] !== 0) { + posMatrix = painter.translatePosMatrix(coord.posMatrix, tile, translate, translateAnchor); + } + const buffers = isText ? bucket.textCollisionBox : bucket.iconCollisionBox; + const circleArray = bucket.collisionCircleArray; + if (circleArray.length > 0) { + const invTransform = ref_properties.create(); + const transform = posMatrix; + ref_properties.mul(invTransform, bucket.placementInvProjMatrix, painter.transform.glCoordMatrix); + ref_properties.mul(invTransform, invTransform, bucket.placementViewportMatrix); + tileBatches.push({ + circleArray, + circleOffset, + transform, + invTransform + }); + circleCount += circleArray.length / 4; + circleOffset = circleCount; + } + if (!buffers) + continue; + if (painter.terrain) + painter.terrain.setupElevationDraw(tile, program); + program.draw(context, gl.LINES, ref_properties.DepthMode.disabled, ref_properties.StencilMode.disabled, painter.colorModeForRenderPass(), ref_properties.CullFaceMode.disabled, collisionUniformValues(posMatrix, painter.transform, tile), layer.id, buffers.layoutVertexBuffer, buffers.indexBuffer, buffers.segments, null, painter.transform.zoom, null, buffers.collisionVertexBuffer, buffers.collisionVertexBufferExt); + } + if (!isText || !tileBatches.length) { + return; + } + const circleProgram = painter.useProgram('collisionCircle'); + const vertexData = new ref_properties.StructArrayLayout2f1f2i16(); + vertexData.resize(circleCount * 4); + vertexData._trim(); + let vertexOffset = 0; + for (const batch of tileBatches) { + for (let i = 0; i < batch.circleArray.length / 4; i++) { + const circleIdx = i * 4; + const x = batch.circleArray[circleIdx + 0]; + const y = batch.circleArray[circleIdx + 1]; + const radius = batch.circleArray[circleIdx + 2]; + const collision = batch.circleArray[circleIdx + 3]; + vertexData.emplace(vertexOffset++, x, y, radius, collision, 0); + vertexData.emplace(vertexOffset++, x, y, radius, collision, 1); + vertexData.emplace(vertexOffset++, x, y, radius, collision, 2); + vertexData.emplace(vertexOffset++, x, y, radius, collision, 3); + } + } + if (!quadTriangles || quadTriangles.length < circleCount * 2) { + quadTriangles = createQuadTriangles(circleCount); + } + const indexBuffer = context.createIndexBuffer(quadTriangles, true); + const vertexBuffer = context.createVertexBuffer(vertexData, ref_properties.collisionCircleLayout.members, true); + for (const batch of tileBatches) { + const uniforms = collisionCircleUniformValues(batch.transform, batch.invTransform, painter.transform); + circleProgram.draw(context, gl.TRIANGLES, ref_properties.DepthMode.disabled, ref_properties.StencilMode.disabled, painter.colorModeForRenderPass(), ref_properties.CullFaceMode.disabled, uniforms, layer.id, vertexBuffer, indexBuffer, ref_properties.SegmentVector.simpleSegment(0, batch.circleOffset * 2, batch.circleArray.length, batch.circleArray.length / 2), null, painter.transform.zoom, null, null, null); + } + vertexBuffer.destroy(); + indexBuffer.destroy(); +} +function createQuadTriangles(quadCount) { + const triCount = quadCount * 2; + const array = new ref_properties.StructArrayLayout3ui6(); + array.resize(triCount); + array._trim(); + for (let i = 0; i < triCount; i++) { + const idx = i * 6; + array.uint16[idx + 0] = i * 4 + 0; + array.uint16[idx + 1] = i * 4 + 1; + array.uint16[idx + 2] = i * 4 + 2; + array.uint16[idx + 3] = i * 4 + 2; + array.uint16[idx + 4] = i * 4 + 3; + array.uint16[idx + 5] = i * 4 + 0; + } + return array; +} + +const identityMat4 = ref_properties.identity(new Float32Array(16)); +function drawSymbols(painter, sourceCache, layer, coords, variableOffsets) { + if (painter.renderPass !== 'translucent') + return; + const stencilMode = ref_properties.StencilMode.disabled; + const colorMode = painter.colorModeForRenderPass(); + const variablePlacement = layer.layout.get('text-variable-anchor'); + if (variablePlacement) { + updateVariableAnchors(coords, painter, layer, sourceCache, layer.layout.get('text-rotation-alignment'), layer.layout.get('text-pitch-alignment'), variableOffsets); + } + if (layer.paint.get('icon-opacity').constantOr(1) !== 0) { + drawLayerSymbols(painter, sourceCache, layer, coords, false, layer.paint.get('icon-translate'), layer.paint.get('icon-translate-anchor'), layer.layout.get('icon-rotation-alignment'), layer.layout.get('icon-pitch-alignment'), layer.layout.get('icon-keep-upright'), stencilMode, colorMode); + } + if (layer.paint.get('text-opacity').constantOr(1) !== 0) { + drawLayerSymbols(painter, sourceCache, layer, coords, true, layer.paint.get('text-translate'), layer.paint.get('text-translate-anchor'), layer.layout.get('text-rotation-alignment'), layer.layout.get('text-pitch-alignment'), layer.layout.get('text-keep-upright'), stencilMode, colorMode); + } + if (sourceCache.map.showCollisionBoxes) { + drawCollisionDebug(painter, sourceCache, layer, coords, layer.paint.get('text-translate'), layer.paint.get('text-translate-anchor'), true); + drawCollisionDebug(painter, sourceCache, layer, coords, layer.paint.get('icon-translate'), layer.paint.get('icon-translate-anchor'), false); + } +} +function calculateVariableRenderShift(anchor, width, height, textOffset, textBoxScale, renderTextSize) { + const {horizontalAlign, verticalAlign} = ref_properties.getAnchorAlignment(anchor); + const shiftX = -(horizontalAlign - 0.5) * width; + const shiftY = -(verticalAlign - 0.5) * height; + const variableOffset = ref_properties.evaluateVariableOffset(anchor, textOffset); + return new ref_properties.Point((shiftX / textBoxScale + variableOffset[0]) * renderTextSize, (shiftY / textBoxScale + variableOffset[1]) * renderTextSize); +} +function updateVariableAnchors(coords, painter, layer, sourceCache, rotationAlignment, pitchAlignment, variableOffsets) { + const tr = painter.transform; + const rotateWithMap = rotationAlignment === 'map'; + const pitchWithMap = pitchAlignment === 'map'; + for (const coord of coords) { + const tile = sourceCache.getTile(coord); + const bucket = tile.getBucket(layer); + if (!bucket || !bucket.text || !bucket.text.segments.get().length) + continue; + const sizeData = bucket.textSizeData; + const size = ref_properties.evaluateSizeForZoom(sizeData, tr.zoom); + const pixelToTileScale = pixelsToTileUnits(tile, 1, painter.transform.zoom); + const labelPlaneMatrix = getLabelPlaneMatrix(coord.posMatrix, pitchWithMap, rotateWithMap, painter.transform, pixelToTileScale); + const updateTextFitIcon = layer.layout.get('icon-text-fit') !== 'none' && bucket.hasIconData(); + if (size) { + const tileScale = Math.pow(2, tr.zoom - tile.tileID.overscaledZ); + const elevation = tr.elevation; + const getElevation = elevation ? p => elevation.getAtTileOffset(coord, p.x, p.y) : _ => 0; + updateVariableAnchorsForBucket(bucket, rotateWithMap, pitchWithMap, variableOffsets, ref_properties.symbolSize, tr, labelPlaneMatrix, coord.posMatrix, tileScale, size, updateTextFitIcon, getElevation); + } + } +} +function updateVariableAnchorsForBucket(bucket, rotateWithMap, pitchWithMap, variableOffsets, symbolSize, transform, labelPlaneMatrix, posMatrix, tileScale, size, updateTextFitIcon, getElevation) { + const placedSymbols = bucket.text.placedSymbolArray; + const dynamicTextLayoutVertexArray = bucket.text.dynamicLayoutVertexArray; + const dynamicIconLayoutVertexArray = bucket.icon.dynamicLayoutVertexArray; + const placedTextShifts = {}; + dynamicTextLayoutVertexArray.clear(); + for (let s = 0; s < placedSymbols.length; s++) { + const symbol = placedSymbols.get(s); + const skipOrientation = bucket.allowVerticalPlacement && !symbol.placedOrientation; + const variableOffset = !symbol.hidden && symbol.crossTileID && !skipOrientation ? variableOffsets[symbol.crossTileID] : null; + if (!variableOffset) { + hideGlyphs(symbol.numGlyphs, dynamicTextLayoutVertexArray); + } else { + const tileAnchor = new ref_properties.Point(symbol.anchorX, symbol.anchorY); + const elevation = getElevation(tileAnchor); + const projectedAnchor = project(tileAnchor, pitchWithMap ? posMatrix : labelPlaneMatrix, elevation); + const perspectiveRatio = getPerspectiveRatio(transform.cameraToCenterDistance, projectedAnchor.signedDistanceFromCamera); + let renderTextSize = symbolSize.evaluateSizeForFeature(bucket.textSizeData, size, symbol) * perspectiveRatio / ref_properties.ONE_EM; + if (pitchWithMap) { + renderTextSize *= bucket.tilePixelRatio / tileScale; + } + const {width, height, anchor, textOffset, textBoxScale} = variableOffset; + const shift = calculateVariableRenderShift(anchor, width, height, textOffset, textBoxScale, renderTextSize); + const shiftedAnchor = pitchWithMap ? project(tileAnchor.add(shift), labelPlaneMatrix, elevation).point : projectedAnchor.point.add(rotateWithMap ? shift.rotate(-transform.angle) : shift); + const angle = bucket.allowVerticalPlacement && symbol.placedOrientation === ref_properties.WritingMode.vertical ? Math.PI / 2 : 0; + for (let g = 0; g < symbol.numGlyphs; g++) { + ref_properties.addDynamicAttributes(dynamicTextLayoutVertexArray, shiftedAnchor, angle); + } + if (updateTextFitIcon && symbol.associatedIconIndex >= 0) { + placedTextShifts[symbol.associatedIconIndex] = { + shiftedAnchor, + angle + }; + } + } + } + if (updateTextFitIcon) { + dynamicIconLayoutVertexArray.clear(); + const placedIcons = bucket.icon.placedSymbolArray; + for (let i = 0; i < placedIcons.length; i++) { + const placedIcon = placedIcons.get(i); + if (placedIcon.hidden) { + hideGlyphs(placedIcon.numGlyphs, dynamicIconLayoutVertexArray); + } else { + const shift = placedTextShifts[i]; + if (!shift) { + hideGlyphs(placedIcon.numGlyphs, dynamicIconLayoutVertexArray); + } else { + for (let g = 0; g < placedIcon.numGlyphs; g++) { + ref_properties.addDynamicAttributes(dynamicIconLayoutVertexArray, shift.shiftedAnchor, shift.angle); + } + } + } + } + bucket.icon.dynamicLayoutVertexBuffer.updateData(dynamicIconLayoutVertexArray); + } + bucket.text.dynamicLayoutVertexBuffer.updateData(dynamicTextLayoutVertexArray); +} +function getSymbolProgramName(isSDF, isText, bucket) { + if (bucket.iconsInText && isText) { + return 'symbolTextAndIcon'; + } else if (isSDF) { + return 'symbolSDF'; + } else { + return 'symbolIcon'; + } +} +function drawLayerSymbols(painter, sourceCache, layer, coords, isText, translate, translateAnchor, rotationAlignment, pitchAlignment, keepUpright, stencilMode, colorMode) { + const context = painter.context; + const gl = context.gl; + const tr = painter.transform; + const rotateWithMap = rotationAlignment === 'map'; + const pitchWithMap = pitchAlignment === 'map'; + const alongLine = rotateWithMap && layer.layout.get('symbol-placement') !== 'point'; + const rotateInShader = rotateWithMap && !pitchWithMap && !alongLine; + const hasSortKey = layer.layout.get('symbol-sort-key').constantOr(1) !== undefined; + let sortFeaturesByKey = false; + const depthMode = painter.depthModeForSublayer(0, ref_properties.DepthMode.ReadOnly); + const variablePlacement = layer.layout.get('text-variable-anchor'); + const tileRenderState = []; + const defines = painter.terrain && pitchWithMap ? ['PITCH_WITH_MAP_TERRAIN'] : null; + for (const coord of coords) { + const tile = sourceCache.getTile(coord); + const bucket = tile.getBucket(layer); + if (!bucket) + continue; + const buffers = isText ? bucket.text : bucket.icon; + if (!buffers || !buffers.segments.get().length) + continue; + const programConfiguration = buffers.programConfigurations.get(layer.id); + const isSDF = isText || bucket.sdfIcons; + const sizeData = isText ? bucket.textSizeData : bucket.iconSizeData; + const transformed = pitchWithMap || tr.pitch !== 0; + const program = painter.useProgram(getSymbolProgramName(isSDF, isText, bucket), programConfiguration, defines); + const size = ref_properties.evaluateSizeForZoom(sizeData, tr.zoom); + let texSize; + let texSizeIcon = [ + 0, + 0 + ]; + let atlasTexture; + let atlasInterpolation; + let atlasTextureIcon = null; + let atlasInterpolationIcon; + if (isText) { + atlasTexture = tile.glyphAtlasTexture; + atlasInterpolation = gl.LINEAR; + texSize = tile.glyphAtlasTexture.size; + if (bucket.iconsInText) { + texSizeIcon = tile.imageAtlasTexture.size; + atlasTextureIcon = tile.imageAtlasTexture; + const zoomDependentSize = sizeData.kind === 'composite' || sizeData.kind === 'camera'; + atlasInterpolationIcon = transformed || painter.options.rotating || painter.options.zooming || zoomDependentSize ? gl.LINEAR : gl.NEAREST; + } + } else { + const iconScaled = layer.layout.get('icon-size').constantOr(0) !== 1 || bucket.iconsNeedLinear; + atlasTexture = tile.imageAtlasTexture; + atlasInterpolation = isSDF || painter.options.rotating || painter.options.zooming || iconScaled || transformed ? gl.LINEAR : gl.NEAREST; + texSize = tile.imageAtlasTexture.size; + } + const s = pixelsToTileUnits(tile, 1, painter.transform.zoom); + const labelPlaneMatrix = getLabelPlaneMatrix(coord.posMatrix, pitchWithMap, rotateWithMap, painter.transform, s); + const labelPlaneMatrixInv = painter.terrain && pitchWithMap && alongLine ? ref_properties.invert(new Float32Array(16), labelPlaneMatrix) : identityMat4; + const glCoordMatrix = getGlCoordMatrix(coord.posMatrix, pitchWithMap, rotateWithMap, painter.transform, s); + const hasVariableAnchors = variablePlacement && bucket.hasTextData(); + const updateTextFitIcon = layer.layout.get('icon-text-fit') !== 'none' && hasVariableAnchors && bucket.hasIconData(); + if (alongLine) { + const elevation = tr.elevation; + const getElevation = elevation ? p => elevation.getAtTileOffset(coord, p.x, p.y) : null; + updateLineLabels(bucket, coord.posMatrix, painter, isText, labelPlaneMatrix, glCoordMatrix, pitchWithMap, keepUpright, getElevation); + } + const matrix = painter.translatePosMatrix(coord.posMatrix, tile, translate, translateAnchor), uLabelPlaneMatrix = alongLine || isText && variablePlacement || updateTextFitIcon ? identityMat4 : labelPlaneMatrix, uglCoordMatrix = painter.translatePosMatrix(glCoordMatrix, tile, translate, translateAnchor, true); + const hasHalo = isSDF && layer.paint.get(isText ? 'text-halo-width' : 'icon-halo-width').constantOr(1) !== 0; + let uniformValues; + if (isSDF) { + if (!bucket.iconsInText) { + uniformValues = symbolSDFUniformValues(sizeData.kind, size, rotateInShader, pitchWithMap, painter, matrix, uLabelPlaneMatrix, uglCoordMatrix, isText, texSize, true); + } else { + uniformValues = symbolTextAndIconUniformValues(sizeData.kind, size, rotateInShader, pitchWithMap, painter, matrix, uLabelPlaneMatrix, uglCoordMatrix, texSize, texSizeIcon); + } + } else { + uniformValues = symbolIconUniformValues(sizeData.kind, size, rotateInShader, pitchWithMap, painter, matrix, uLabelPlaneMatrix, uglCoordMatrix, isText, texSize); + } + const state = { + program, + buffers, + uniformValues, + atlasTexture, + atlasTextureIcon, + atlasInterpolation, + atlasInterpolationIcon, + isSDF, + hasHalo, + tile, + labelPlaneMatrixInv + }; + if (hasSortKey && bucket.canOverlap) { + sortFeaturesByKey = true; + const oldSegments = buffers.segments.get(); + for (const segment of oldSegments) { + tileRenderState.push({ + segments: new ref_properties.SegmentVector([segment]), + sortKey: segment.sortKey, + state + }); + } + } else { + tileRenderState.push({ + segments: buffers.segments, + sortKey: 0, + state + }); + } + } + if (sortFeaturesByKey) { + tileRenderState.sort((a, b) => a.sortKey - b.sortKey); + } + for (const segmentState of tileRenderState) { + const state = segmentState.state; + if (painter.terrain) + painter.terrain.setupElevationDraw(state.tile, state.program, { + useDepthForOcclusion: true, + labelPlaneMatrixInv: state.labelPlaneMatrixInv + }); + context.activeTexture.set(gl.TEXTURE0); + state.atlasTexture.bind(state.atlasInterpolation, gl.CLAMP_TO_EDGE); + if (state.atlasTextureIcon) { + context.activeTexture.set(gl.TEXTURE1); + if (state.atlasTextureIcon) { + state.atlasTextureIcon.bind(state.atlasInterpolationIcon, gl.CLAMP_TO_EDGE); + } + } + if (state.isSDF) { + const uniformValues = state.uniformValues; + if (state.hasHalo) { + uniformValues['u_is_halo'] = 1; + drawSymbolElements(state.buffers, segmentState.segments, layer, painter, state.program, depthMode, stencilMode, colorMode, uniformValues); + } + uniformValues['u_is_halo'] = 0; + } + drawSymbolElements(state.buffers, segmentState.segments, layer, painter, state.program, depthMode, stencilMode, colorMode, state.uniformValues); + } +} +function drawSymbolElements(buffers, segments, layer, painter, program, depthMode, stencilMode, colorMode, uniformValues) { + const context = painter.context; + const gl = context.gl; + program.draw(context, gl.TRIANGLES, depthMode, stencilMode, colorMode, ref_properties.CullFaceMode.disabled, uniformValues, layer.id, buffers.layoutVertexBuffer, buffers.indexBuffer, segments, layer.paint, painter.transform.zoom, buffers.programConfigurations.get(layer.id), buffers.dynamicLayoutVertexBuffer, buffers.opacityVertexBuffer); +} + +function drawCircles(painter, sourceCache, layer, coords) { + if (painter.renderPass !== 'translucent') + return; + const opacity = layer.paint.get('circle-opacity'); + const strokeWidth = layer.paint.get('circle-stroke-width'); + const strokeOpacity = layer.paint.get('circle-stroke-opacity'); + const sortFeaturesByKey = layer.layout.get('circle-sort-key').constantOr(1) !== undefined; + if (opacity.constantOr(1) === 0 && (strokeWidth.constantOr(1) === 0 || strokeOpacity.constantOr(1) === 0)) { + return; + } + const context = painter.context; + const gl = context.gl; + const depthMode = painter.depthModeForSublayer(0, ref_properties.DepthMode.ReadOnly); + const stencilMode = ref_properties.StencilMode.disabled; + const colorMode = painter.colorModeForRenderPass(); + const segmentsRenderStates = []; + for (let i = 0; i < coords.length; i++) { + const coord = coords[i]; + const tile = sourceCache.getTile(coord); + const bucket = tile.getBucket(layer); + if (!bucket) + continue; + const programConfiguration = bucket.programConfigurations.get(layer.id); + const definesValues = circleDefinesValues(layer); + const program = painter.useProgram('circle', programConfiguration, definesValues); + const layoutVertexBuffer = bucket.layoutVertexBuffer; + const indexBuffer = bucket.indexBuffer; + const uniformValues = circleUniformValues(painter, coord, tile, layer); + const state = { + programConfiguration, + program, + layoutVertexBuffer, + indexBuffer, + uniformValues, + tile + }; + if (sortFeaturesByKey) { + const oldSegments = bucket.segments.get(); + for (const segment of oldSegments) { + segmentsRenderStates.push({ + segments: new ref_properties.SegmentVector([segment]), + sortKey: segment.sortKey, + state + }); + } + } else { + segmentsRenderStates.push({ + segments: bucket.segments, + sortKey: 0, + state + }); + } + } + if (sortFeaturesByKey) { + segmentsRenderStates.sort((a, b) => a.sortKey - b.sortKey); + } + for (const segmentsState of segmentsRenderStates) { + const {programConfiguration, program, layoutVertexBuffer, indexBuffer, uniformValues, tile} = segmentsState.state; + const segments = segmentsState.segments; + if (painter.terrain) + painter.terrain.setupElevationDraw(tile, program, { useDepthForOcclusion: true }); + program.draw(context, gl.TRIANGLES, depthMode, stencilMode, colorMode, ref_properties.CullFaceMode.disabled, uniformValues, layer.id, layoutVertexBuffer, indexBuffer, segments, layer.paint, painter.transform.zoom, programConfiguration); + } +} + +function drawHeatmap(painter, sourceCache, layer, coords) { + if (layer.paint.get('heatmap-opacity') === 0) { + return; + } + if (painter.renderPass === 'offscreen') { + const context = painter.context; + const gl = context.gl; + const stencilMode = ref_properties.StencilMode.disabled; + const colorMode = new ref_properties.ColorMode([ + gl.ONE, + gl.ONE + ], ref_properties.Color.transparent, [ + true, + true, + true, + true + ]); + bindFramebuffer(context, painter, layer); + context.clear({ color: ref_properties.Color.transparent }); + for (let i = 0; i < coords.length; i++) { + const coord = coords[i]; + if (sourceCache.hasRenderableParent(coord)) + continue; + const tile = sourceCache.getTile(coord); + const bucket = tile.getBucket(layer); + if (!bucket) + continue; + const programConfiguration = bucket.programConfigurations.get(layer.id); + const program = painter.useProgram('heatmap', programConfiguration); + const {zoom} = painter.transform; + if (painter.terrain) + painter.terrain.setupElevationDraw(tile, program); + program.draw(context, gl.TRIANGLES, ref_properties.DepthMode.disabled, stencilMode, colorMode, ref_properties.CullFaceMode.disabled, heatmapUniformValues(coord.posMatrix, tile, zoom, layer.paint.get('heatmap-intensity')), layer.id, bucket.layoutVertexBuffer, bucket.indexBuffer, bucket.segments, layer.paint, painter.transform.zoom, programConfiguration); + } + context.viewport.set([ + 0, + 0, + painter.width, + painter.height + ]); + } else if (painter.renderPass === 'translucent') { + painter.context.setColorMode(painter.colorModeForRenderPass()); + renderTextureToMap(painter, layer); + } +} +function bindFramebuffer(context, painter, layer) { + const gl = context.gl; + context.activeTexture.set(gl.TEXTURE1); + context.viewport.set([ + 0, + 0, + painter.width / 4, + painter.height / 4 + ]); + let fbo = layer.heatmapFbo; + if (!fbo) { + const texture = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, texture); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); + fbo = layer.heatmapFbo = context.createFramebuffer(painter.width / 4, painter.height / 4, false); + bindTextureToFramebuffer(context, painter, texture, fbo); + } else { + gl.bindTexture(gl.TEXTURE_2D, fbo.colorAttachment.get()); + context.bindFramebuffer.set(fbo.framebuffer); + } +} +function bindTextureToFramebuffer(context, painter, texture, fbo) { + const gl = context.gl; + const internalFormat = context.extRenderToTextureHalfFloat ? context.extTextureHalfFloat.HALF_FLOAT_OES : gl.UNSIGNED_BYTE; + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, painter.width / 4, painter.height / 4, 0, gl.RGBA, internalFormat, null); + fbo.colorAttachment.set(texture); +} +function renderTextureToMap(painter, layer) { + const context = painter.context; + const gl = context.gl; + const fbo = layer.heatmapFbo; + if (!fbo) + return; + context.activeTexture.set(gl.TEXTURE0); + gl.bindTexture(gl.TEXTURE_2D, fbo.colorAttachment.get()); + context.activeTexture.set(gl.TEXTURE1); + let colorRampTexture = layer.colorRampTexture; + if (!colorRampTexture) { + colorRampTexture = layer.colorRampTexture = new ref_properties.Texture(context, layer.colorRamp, gl.RGBA); + } + colorRampTexture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + painter.useProgram('heatmapTexture').draw(context, gl.TRIANGLES, ref_properties.DepthMode.disabled, ref_properties.StencilMode.disabled, painter.colorModeForRenderPass(), ref_properties.CullFaceMode.disabled, heatmapTextureUniformValues(painter, layer, 0, 1), layer.id, painter.viewportBuffer, painter.quadTriangleIndexBuffer, painter.viewportSegments, layer.paint, painter.transform.zoom); +} + +function drawLine(painter, sourceCache, layer, coords) { + if (painter.renderPass !== 'translucent') + return; + const opacity = layer.paint.get('line-opacity'); + const width = layer.paint.get('line-width'); + if (opacity.constantOr(1) === 0 || width.constantOr(1) === 0) + return; + const depthMode = painter.depthModeForSublayer(0, ref_properties.DepthMode.ReadOnly); + const colorMode = painter.colorModeForRenderPass(); + const dasharray = layer.paint.get('line-dasharray'); + const patternProperty = layer.paint.get('line-pattern'); + const image = patternProperty.constantOr(1); + const gradient = layer.paint.get('line-gradient'); + const crossfade = layer.getCrossfadeParameters(); + const programId = image ? 'linePattern' : dasharray ? 'lineSDF' : gradient ? 'lineGradient' : 'line'; + const context = painter.context; + const gl = context.gl; + let firstTile = true; + for (const coord of coords) { + const tile = sourceCache.getTile(coord); + if (image && !tile.patternsLoaded()) + continue; + const bucket = tile.getBucket(layer); + if (!bucket) + continue; + painter.prepareDrawTile(coord); + const programConfiguration = bucket.programConfigurations.get(layer.id); + const prevProgram = painter.context.program.get(); + const program = painter.useProgram(programId, programConfiguration); + const programChanged = firstTile || program.program !== prevProgram; + const constantPattern = patternProperty.constantOr(null); + if (constantPattern && tile.imageAtlas) { + const atlas = tile.imageAtlas; + const posTo = atlas.patternPositions[constantPattern.to.toString()]; + const posFrom = atlas.patternPositions[constantPattern.from.toString()]; + if (posTo && posFrom) + programConfiguration.setConstantPatternPositions(posTo, posFrom); + } + const matrix = painter.terrain ? coord.posMatrix : null; + const uniformValues = image ? linePatternUniformValues(painter, tile, layer, crossfade, matrix) : dasharray ? lineSDFUniformValues(painter, tile, layer, dasharray, crossfade, matrix) : gradient ? lineGradientUniformValues(painter, tile, layer, matrix, bucket.lineClipsArray.length) : lineUniformValues(painter, tile, layer, matrix); + if (image) { + context.activeTexture.set(gl.TEXTURE0); + tile.imageAtlasTexture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + programConfiguration.updatePaintBuffers(crossfade); + } else if (dasharray && (programChanged || painter.lineAtlas.dirty)) { + context.activeTexture.set(gl.TEXTURE0); + painter.lineAtlas.bind(context); + } else if (gradient) { + const layerGradient = bucket.gradients[layer.id]; + let gradientTexture = layerGradient.texture; + if (layer.gradientVersion !== layerGradient.version) { + let textureResolution = 256; + if (layer.stepInterpolant) { + const sourceMaxZoom = sourceCache.getSource().maxzoom; + const potentialOverzoom = coord.canonical.z === sourceMaxZoom ? Math.ceil(1 << painter.transform.maxZoom - coord.canonical.z) : 1; + const lineLength = bucket.maxLineLength / ref_properties.EXTENT; + const maxTilePixelSize = 1024; + const maxTextureCoverage = lineLength * maxTilePixelSize * potentialOverzoom; + textureResolution = ref_properties.clamp(ref_properties.nextPowerOfTwo(maxTextureCoverage), 256, context.maxTextureSize); + } + layerGradient.gradient = ref_properties.renderColorRamp({ + expression: layer.gradientExpression(), + evaluationKey: 'lineProgress', + resolution: textureResolution, + image: layerGradient.gradient || undefined, + clips: bucket.lineClipsArray + }); + if (layerGradient.texture) { + layerGradient.texture.update(layerGradient.gradient); + } else { + layerGradient.texture = new ref_properties.Texture(context, layerGradient.gradient, gl.RGBA); + } + layerGradient.version = layer.gradientVersion; + gradientTexture = layerGradient.texture; + } + context.activeTexture.set(gl.TEXTURE0); + gradientTexture.bind(layer.stepInterpolant ? gl.NEAREST : gl.LINEAR, gl.CLAMP_TO_EDGE); + } + program.draw(context, gl.TRIANGLES, depthMode, painter.stencilModeForClipping(coord), colorMode, ref_properties.CullFaceMode.disabled, uniformValues, layer.id, bucket.layoutVertexBuffer, bucket.indexBuffer, bucket.segments, layer.paint, painter.transform.zoom, programConfiguration, bucket.layoutVertexBuffer2); + firstTile = false; + } +} + +function drawFill(painter, sourceCache, layer, coords) { + const color = layer.paint.get('fill-color'); + const opacity = layer.paint.get('fill-opacity'); + if (opacity.constantOr(1) === 0) { + return; + } + const colorMode = painter.colorModeForRenderPass(); + const pattern = layer.paint.get('fill-pattern'); + const pass = painter.opaquePassEnabledForLayer() && (!pattern.constantOr(1) && color.constantOr(ref_properties.Color.transparent).a === 1 && opacity.constantOr(0) === 1) ? 'opaque' : 'translucent'; + if (painter.renderPass === pass) { + const depthMode = painter.depthModeForSublayer(1, painter.renderPass === 'opaque' ? ref_properties.DepthMode.ReadWrite : ref_properties.DepthMode.ReadOnly); + drawFillTiles(painter, sourceCache, layer, coords, depthMode, colorMode, false); + } + if (painter.renderPass === 'translucent' && layer.paint.get('fill-antialias')) { + const depthMode = painter.depthModeForSublayer(layer.getPaintProperty('fill-outline-color') ? 2 : 0, ref_properties.DepthMode.ReadOnly); + drawFillTiles(painter, sourceCache, layer, coords, depthMode, colorMode, true); + } +} +function drawFillTiles(painter, sourceCache, layer, coords, depthMode, colorMode, isOutline) { + const gl = painter.context.gl; + const patternProperty = layer.paint.get('fill-pattern'); + const image = patternProperty && patternProperty.constantOr(1); + const crossfade = layer.getCrossfadeParameters(); + let drawMode, programName, uniformValues, indexBuffer, segments; + if (!isOutline) { + programName = image ? 'fillPattern' : 'fill'; + drawMode = gl.TRIANGLES; + } else { + programName = image && !layer.getPaintProperty('fill-outline-color') ? 'fillOutlinePattern' : 'fillOutline'; + drawMode = gl.LINES; + } + for (const coord of coords) { + const tile = sourceCache.getTile(coord); + if (image && !tile.patternsLoaded()) + continue; + const bucket = tile.getBucket(layer); + if (!bucket) + continue; + painter.prepareDrawTile(coord); + const programConfiguration = bucket.programConfigurations.get(layer.id); + const program = painter.useProgram(programName, programConfiguration); + if (image) { + painter.context.activeTexture.set(gl.TEXTURE0); + tile.imageAtlasTexture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + programConfiguration.updatePaintBuffers(crossfade); + } + const constantPattern = patternProperty.constantOr(null); + if (constantPattern && tile.imageAtlas) { + const atlas = tile.imageAtlas; + const posTo = atlas.patternPositions[constantPattern.to.toString()]; + const posFrom = atlas.patternPositions[constantPattern.from.toString()]; + if (posTo && posFrom) + programConfiguration.setConstantPatternPositions(posTo, posFrom); + } + const tileMatrix = painter.translatePosMatrix(coord.posMatrix, tile, layer.paint.get('fill-translate'), layer.paint.get('fill-translate-anchor')); + if (!isOutline) { + indexBuffer = bucket.indexBuffer; + segments = bucket.segments; + uniformValues = image ? fillPatternUniformValues(tileMatrix, painter, crossfade, tile) : fillUniformValues(tileMatrix); + } else { + indexBuffer = bucket.indexBuffer2; + segments = bucket.segments2; + const drawingBufferSize = painter.terrain && painter.terrain.renderingToTexture ? painter.terrain.drapeBufferSize : [ + gl.drawingBufferWidth, + gl.drawingBufferHeight + ]; + uniformValues = programName === 'fillOutlinePattern' && image ? fillOutlinePatternUniformValues(tileMatrix, painter, crossfade, tile, drawingBufferSize) : fillOutlineUniformValues(tileMatrix, drawingBufferSize); + } + program.draw(painter.context, drawMode, depthMode, painter.stencilModeForClipping(coord), colorMode, ref_properties.CullFaceMode.disabled, uniformValues, layer.id, bucket.layoutVertexBuffer, indexBuffer, segments, layer.paint, painter.transform.zoom, programConfiguration); + } +} + +function draw(painter, source, layer, coords) { + const opacity = layer.paint.get('fill-extrusion-opacity'); + if (opacity === 0) { + return; + } + if (painter.renderPass === 'translucent') { + const depthMode = new ref_properties.DepthMode(painter.context.gl.LEQUAL, ref_properties.DepthMode.ReadWrite, painter.depthRangeFor3D); + if (opacity === 1 && !layer.paint.get('fill-extrusion-pattern').constantOr(1)) { + const colorMode = painter.colorModeForRenderPass(); + drawExtrusionTiles(painter, source, layer, coords, depthMode, ref_properties.StencilMode.disabled, colorMode); + } else { + drawExtrusionTiles(painter, source, layer, coords, depthMode, ref_properties.StencilMode.disabled, ref_properties.ColorMode.disabled); + drawExtrusionTiles(painter, source, layer, coords, depthMode, painter.stencilModeFor3D(), painter.colorModeForRenderPass()); + } + } +} +function drawExtrusionTiles(painter, source, layer, coords, depthMode, stencilMode, colorMode) { + const context = painter.context; + const gl = context.gl; + const patternProperty = layer.paint.get('fill-extrusion-pattern'); + const image = patternProperty.constantOr(1); + const crossfade = layer.getCrossfadeParameters(); + const opacity = layer.paint.get('fill-extrusion-opacity'); + for (const coord of coords) { + const tile = source.getTile(coord); + const bucket = tile.getBucket(layer); + if (!bucket) + continue; + const programConfiguration = bucket.programConfigurations.get(layer.id); + const program = painter.useProgram(image ? 'fillExtrusionPattern' : 'fillExtrusion', programConfiguration); + if (painter.terrain) { + const terrain = painter.terrain; + if (!bucket.enableTerrain) + continue; + terrain.setupElevationDraw(tile, program, { useMeterToDem: true }); + flatRoofsUpdate(context, source, coord, bucket, layer, terrain); + if (!bucket.centroidVertexBuffer) { + const attrIndex = program.attributes['a_centroid_pos']; + if (attrIndex !== undefined) + gl.vertexAttrib2f(attrIndex, 0, 0); + } + } + if (image) { + painter.context.activeTexture.set(gl.TEXTURE0); + tile.imageAtlasTexture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + programConfiguration.updatePaintBuffers(crossfade); + } + const constantPattern = patternProperty.constantOr(null); + if (constantPattern && tile.imageAtlas) { + const atlas = tile.imageAtlas; + const posTo = atlas.patternPositions[constantPattern.to.toString()]; + const posFrom = atlas.patternPositions[constantPattern.from.toString()]; + if (posTo && posFrom) + programConfiguration.setConstantPatternPositions(posTo, posFrom); + } + const matrix = painter.translatePosMatrix(coord.posMatrix, tile, layer.paint.get('fill-extrusion-translate'), layer.paint.get('fill-extrusion-translate-anchor')); + const shouldUseVerticalGradient = layer.paint.get('fill-extrusion-vertical-gradient'); + const uniformValues = image ? fillExtrusionPatternUniformValues(matrix, painter, shouldUseVerticalGradient, opacity, coord, crossfade, tile) : fillExtrusionUniformValues(matrix, painter, shouldUseVerticalGradient, opacity); + program.draw(context, context.gl.TRIANGLES, depthMode, stencilMode, colorMode, ref_properties.CullFaceMode.backCCW, uniformValues, layer.id, bucket.layoutVertexBuffer, bucket.indexBuffer, bucket.segments, layer.paint, painter.transform.zoom, programConfiguration, painter.terrain ? bucket.centroidVertexBuffer : null); + } +} +function flatRoofsUpdate(context, source, coord, bucket, layer, terrain) { + const neighborCoord = [ + coord => { + let x = coord.canonical.x - 1; + let w = coord.wrap; + if (x < 0) { + x = (1 << coord.canonical.z) - 1; + w--; + } + return new ref_properties.OverscaledTileID(coord.overscaledZ, w, coord.canonical.z, x, coord.canonical.y); + }, + coord => { + let x = coord.canonical.x + 1; + let w = coord.wrap; + if (x === 1 << coord.canonical.z) { + x = 0; + w++; + } + return new ref_properties.OverscaledTileID(coord.overscaledZ, w, coord.canonical.z, x, coord.canonical.y); + }, + coord => new ref_properties.OverscaledTileID(coord.overscaledZ, coord.wrap, coord.canonical.z, coord.canonical.x, (coord.canonical.y === 0 ? 1 << coord.canonical.z : coord.canonical.y) - 1), + coord => new ref_properties.OverscaledTileID(coord.overscaledZ, coord.wrap, coord.canonical.z, coord.canonical.x, coord.canonical.y === (1 << coord.canonical.z) - 1 ? 0 : coord.canonical.y + 1) + ]; + const getLoadedBucket = nid => { + const maxzoom = source.getSource().maxzoom; + for (const j of [ + 0, + -1, + 1 + ]) { + if (nid.overscaledZ + j < maxzoom) + continue; + if (j > 0 && nid.overscaledZ < maxzoom) + continue; + const n = source.getTileByID(nid.calculateScaledKey(nid.overscaledZ + j)); + if (n && n.hasData()) { + const nBucket = n.getBucket(layer); + if (nBucket) + return nBucket; + } + } + }; + const projectedToBorder = [ + 0, + 0, + 0 + ]; + const xjoin = (a, b) => { + projectedToBorder[0] = Math.min(a.min.y, b.min.y); + projectedToBorder[1] = Math.max(a.max.y, b.max.y); + projectedToBorder[2] = ref_properties.EXTENT - b.min.x > a.max.x ? b.min.x - ref_properties.EXTENT : a.max.x; + return projectedToBorder; + }; + const yjoin = (a, b) => { + projectedToBorder[0] = Math.min(a.min.x, b.min.x); + projectedToBorder[1] = Math.max(a.max.x, b.max.x); + projectedToBorder[2] = ref_properties.EXTENT - b.min.y > a.max.y ? b.min.y - ref_properties.EXTENT : a.max.y; + return projectedToBorder; + }; + const projectCombinedSpanToBorder = [ + (a, b) => xjoin(a, b), + (a, b) => xjoin(b, a), + (a, b) => yjoin(a, b), + (a, b) => yjoin(b, a) + ]; + const centroid = new ref_properties.Point(0, 0); + const error = 3; + let demTile, neighborDEMTile, neighborTileID; + const flatBase = (min, max, edge, verticalEdge, maxOffsetFromBorder) => { + const points = [ + [ + verticalEdge ? edge : min, + verticalEdge ? min : edge, + 0 + ], + [ + verticalEdge ? edge : max, + verticalEdge ? max : edge, + 0 + ] + ]; + const coord3 = maxOffsetFromBorder < 0 ? ref_properties.EXTENT + maxOffsetFromBorder : maxOffsetFromBorder; + const thirdPoint = [ + verticalEdge ? coord3 : (min + max) / 2, + verticalEdge ? (min + max) / 2 : coord3, + 0 + ]; + if (edge === 0 && maxOffsetFromBorder < 0 || edge !== 0 && maxOffsetFromBorder > 0) { + terrain.getForTilePoints(neighborTileID, [thirdPoint], true, neighborDEMTile); + } else { + points.push(thirdPoint); + } + terrain.getForTilePoints(coord, points, true, demTile); + return Math.max(points[0][2], points[1][2], thirdPoint[2]) / terrain.exaggeration(); + }; + for (let i = 0; i < 4; i++) { + const a = bucket.borders[i]; + if (a.length === 0) { + bucket.borderDone[i] = true; + } + if (bucket.borderDone[i]) + continue; + const nid = neighborTileID = neighborCoord[i](coord); + const nBucket = getLoadedBucket(nid); + if (!nBucket || !nBucket.enableTerrain) + continue; + neighborDEMTile = terrain.findDEMTileFor(nid); + if (!neighborDEMTile || !neighborDEMTile.dem) + continue; + if (!demTile) { + const dem = terrain.findDEMTileFor(coord); + if (!(dem && dem.dem)) + return; + demTile = dem; + } + const j = (i < 2 ? 1 : 5) - i; + const b = nBucket.borders[j]; + let ib = 0; + for (let ia = 0; ia < a.length; ia++) { + const parta = bucket.featuresOnBorder[a[ia]]; + const partABorderRange = parta.borders[i]; + let partb; + while (ib < b.length) { + partb = nBucket.featuresOnBorder[b[ib]]; + const partBBorderRange = partb.borders[j]; + if (partBBorderRange[1] > partABorderRange[0] + error) + break; + if (!nBucket.borderDone[j]) + nBucket.encodeCentroid(undefined, partb, false); + ib++; + } + if (partb && ib < b.length) { + const saveIb = ib; + let count = 0; + while (true) { + const partBBorderRange = partb.borders[j]; + if (partBBorderRange[0] > partABorderRange[1] - error) + break; + count++; + if (++ib === b.length) + break; + partb = nBucket.featuresOnBorder[b[ib]]; + } + partb = nBucket.featuresOnBorder[b[saveIb]]; + if (parta.intersectsCount() > 1 || partb.intersectsCount() > 1 || count !== 1) { + if (count !== 1) { + ib = saveIb; + } + bucket.encodeCentroid(undefined, parta, false); + if (!nBucket.borderDone[j]) + nBucket.encodeCentroid(undefined, partb, false); + continue; + } + const span = projectCombinedSpanToBorder[i](parta, partb); + const edge = i % 2 ? ref_properties.EXTENT - 1 : 0; + centroid.x = flatBase(span[0], Math.min(ref_properties.EXTENT - 1, span[1]), edge, i < 2, span[2]); + centroid.y = 0; + bucket.encodeCentroid(centroid, parta, false); + if (!nBucket.borderDone[j]) + nBucket.encodeCentroid(centroid, partb, false); + } else { + bucket.encodeCentroid(undefined, parta, false); + } + } + bucket.borderDone[i] = bucket.needsCentroidUpdate = true; + if (!nBucket.borderDone[j]) { + nBucket.borderDone[j] = nBucket.needsCentroidUpdate = true; + } + } + if (bucket.needsCentroidUpdate || !bucket.centroidVertexBuffer && bucket.centroidVertexArray.length !== 0) { + bucket.uploadCentroid(context); + } +} + +function drawRaster(painter, sourceCache, layer, tileIDs, variableOffsets, isInitialLoad) { + if (painter.renderPass !== 'translucent') + return; + if (layer.paint.get('raster-opacity') === 0) + return; + if (!tileIDs.length) + return; + const context = painter.context; + const gl = context.gl; + const source = sourceCache.getSource(); + const program = painter.useProgram('raster'); + const colorMode = painter.colorModeForRenderPass(); + const renderingToTexture = painter.terrain && painter.terrain.renderingToTexture; + const [stencilModes, coords] = source instanceof ImageSource || renderingToTexture ? [ + {}, + tileIDs + ] : painter.stencilConfigForOverlap(tileIDs); + const minTileZ = coords[coords.length - 1].overscaledZ; + const align = !painter.options.moving; + for (const coord of coords) { + const depthMode = renderingToTexture ? ref_properties.DepthMode.disabled : painter.depthModeForSublayer(coord.overscaledZ - minTileZ, layer.paint.get('raster-opacity') === 1 ? ref_properties.DepthMode.ReadWrite : ref_properties.DepthMode.ReadOnly, gl.LESS); + const tile = sourceCache.getTile(coord); + if (renderingToTexture && !(tile && tile.hasData())) + continue; + const posMatrix = renderingToTexture ? coord.posMatrix : painter.transform.calculatePosMatrix(coord.toUnwrapped(), align); + const stencilMode = painter.terrain && renderingToTexture ? painter.terrain.stencilModeForRTTOverlap(coord) : stencilModes[coord.overscaledZ]; + const rasterFadeDuration = isInitialLoad ? 0 : layer.paint.get('raster-fade-duration'); + tile.registerFadeDuration(rasterFadeDuration); + const parentTile = sourceCache.findLoadedParent(coord, 0); + const fade = rasterFade(tile, parentTile, sourceCache, painter.transform, rasterFadeDuration); + if (painter.terrain) + painter.terrain.prepareDrawTile(coord); + let parentScaleBy, parentTL; + const textureFilter = layer.paint.get('raster-resampling') === 'nearest' ? gl.NEAREST : gl.LINEAR; + context.activeTexture.set(gl.TEXTURE0); + tile.texture.bind(textureFilter, gl.CLAMP_TO_EDGE, gl.LINEAR_MIPMAP_NEAREST); + context.activeTexture.set(gl.TEXTURE1); + if (parentTile) { + parentTile.texture.bind(textureFilter, gl.CLAMP_TO_EDGE, gl.LINEAR_MIPMAP_NEAREST); + parentScaleBy = Math.pow(2, parentTile.tileID.overscaledZ - tile.tileID.overscaledZ); + parentTL = [ + tile.tileID.canonical.x * parentScaleBy % 1, + tile.tileID.canonical.y * parentScaleBy % 1 + ]; + } else { + tile.texture.bind(textureFilter, gl.CLAMP_TO_EDGE, gl.LINEAR_MIPMAP_NEAREST); + } + const uniformValues = rasterUniformValues(posMatrix, parentTL || [ + 0, + 0 + ], parentScaleBy || 1, fade, layer); + if (source instanceof ImageSource) { + program.draw(context, gl.TRIANGLES, depthMode, ref_properties.StencilMode.disabled, colorMode, ref_properties.CullFaceMode.disabled, uniformValues, layer.id, source.boundsBuffer, painter.quadTriangleIndexBuffer, source.boundsSegments); + } else { + program.draw(context, gl.TRIANGLES, depthMode, stencilMode, colorMode, ref_properties.CullFaceMode.disabled, uniformValues, layer.id, painter.rasterBoundsBuffer, painter.quadTriangleIndexBuffer, painter.rasterBoundsSegments); + } + } +} + +function drawBackground(painter, sourceCache, layer, coords) { + const color = layer.paint.get('background-color'); + const opacity = layer.paint.get('background-opacity'); + if (opacity === 0) + return; + const context = painter.context; + const gl = context.gl; + const transform = painter.transform; + const tileSize = transform.tileSize; + const image = layer.paint.get('background-pattern'); + if (painter.isPatternMissing(image)) + return; + const pass = !image && color.a === 1 && opacity === 1 && painter.opaquePassEnabledForLayer() ? 'opaque' : 'translucent'; + if (painter.renderPass !== pass) + return; + const stencilMode = ref_properties.StencilMode.disabled; + const depthMode = painter.depthModeForSublayer(0, pass === 'opaque' ? ref_properties.DepthMode.ReadWrite : ref_properties.DepthMode.ReadOnly); + const colorMode = painter.colorModeForRenderPass(); + const program = painter.useProgram(image ? 'backgroundPattern' : 'background'); + const tileIDs = coords ? coords : transform.coveringTiles({ tileSize }); + if (image) { + context.activeTexture.set(gl.TEXTURE0); + painter.imageManager.bind(painter.context); + } + const crossfade = layer.getCrossfadeParameters(); + for (const tileID of tileIDs) { + const matrix = coords ? tileID.posMatrix : painter.transform.calculatePosMatrix(tileID.toUnwrapped()); + painter.prepareDrawTile(tileID); + const uniformValues = image ? backgroundPatternUniformValues(matrix, opacity, painter, image, { + tileID, + tileSize + }, crossfade) : backgroundUniformValues(matrix, opacity, color); + program.draw(context, gl.TRIANGLES, depthMode, stencilMode, colorMode, ref_properties.CullFaceMode.disabled, uniformValues, layer.id, painter.tileExtentBuffer, painter.quadTriangleIndexBuffer, painter.tileExtentSegments); + } +} + +const topColor = new ref_properties.Color(1, 0, 0, 1); +const btmColor = new ref_properties.Color(0, 1, 0, 1); +const leftColor = new ref_properties.Color(0, 0, 1, 1); +const rightColor = new ref_properties.Color(1, 0, 1, 1); +const centerColor = new ref_properties.Color(0, 1, 1, 1); +function drawDebugPadding(painter) { + const padding = painter.transform.padding; + const lineWidth = 3; + drawHorizontalLine(painter, painter.transform.height - (padding.top || 0), lineWidth, topColor); + drawHorizontalLine(painter, padding.bottom || 0, lineWidth, btmColor); + drawVerticalLine(painter, padding.left || 0, lineWidth, leftColor); + drawVerticalLine(painter, painter.transform.width - (padding.right || 0), lineWidth, rightColor); + const center = painter.transform.centerPoint; + drawCrosshair(painter, center.x, painter.transform.height - center.y, centerColor); +} +function drawCrosshair(painter, x, y, color) { + const size = 20; + const lineWidth = 2; + drawDebugSSRect(painter, x - lineWidth / 2, y - size / 2, lineWidth, size, color); + drawDebugSSRect(painter, x - size / 2, y - lineWidth / 2, size, lineWidth, color); +} +function drawHorizontalLine(painter, y, lineWidth, color) { + drawDebugSSRect(painter, 0, y + lineWidth / 2, painter.transform.width, lineWidth, color); +} +function drawVerticalLine(painter, x, lineWidth, color) { + drawDebugSSRect(painter, x - lineWidth / 2, 0, lineWidth, painter.transform.height, color); +} +function drawDebugSSRect(painter, x, y, width, height, color) { + const context = painter.context; + const gl = context.gl; + gl.enable(gl.SCISSOR_TEST); + gl.scissor(x * ref_properties.browser.devicePixelRatio, y * ref_properties.browser.devicePixelRatio, width * ref_properties.browser.devicePixelRatio, height * ref_properties.browser.devicePixelRatio); + context.clear({ color }); + gl.disable(gl.SCISSOR_TEST); +} +function drawDebug(painter, sourceCache, coords) { + for (let i = 0; i < coords.length; i++) { + drawDebugTile(painter, sourceCache, coords[i]); + } +} +function drawDebugTile(painter, sourceCache, coord) { + const context = painter.context; + const gl = context.gl; + const posMatrix = coord.posMatrix; + const program = painter.useProgram('debug'); + const tile = sourceCache.getTileByID(coord.key); + if (painter.terrain) + painter.terrain.setupElevationDraw(tile, program); + const depthMode = ref_properties.DepthMode.disabled; + const stencilMode = ref_properties.StencilMode.disabled; + const colorMode = painter.colorModeForRenderPass(); + const id = '$debug'; + context.activeTexture.set(gl.TEXTURE0); + painter.emptyTexture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + program.draw(context, gl.LINE_STRIP, depthMode, stencilMode, colorMode, ref_properties.CullFaceMode.disabled, debugUniformValues(posMatrix, ref_properties.Color.red), id, painter.debugBuffer, painter.tileBorderIndexBuffer, painter.debugSegments); + const tileRawData = tile.latestRawTileData; + const tileByteLength = tileRawData && tileRawData.byteLength || 0; + const tileSizeKb = Math.floor(tileByteLength / 1024); + const tileSize = sourceCache.getTile(coord).tileSize; + const scaleRatio = 512 / Math.min(tileSize, 512) * (coord.overscaledZ / painter.transform.zoom) * 0.5; + let tileIdText = coord.canonical.toString(); + if (coord.overscaledZ !== coord.canonical.z) { + tileIdText += ` => ${ coord.overscaledZ }`; + } + const tileLabel = `${ tileIdText } ${ tileSizeKb }kb`; + drawTextToOverlay(painter, tileLabel); + program.draw(context, gl.TRIANGLES, depthMode, stencilMode, ref_properties.ColorMode.alphaBlended, ref_properties.CullFaceMode.disabled, debugUniformValues(posMatrix, ref_properties.Color.transparent, scaleRatio), id, painter.debugBuffer, painter.quadTriangleIndexBuffer, painter.debugSegments); +} +function drawTextToOverlay(painter, text) { + painter.initDebugOverlayCanvas(); + const canvas = painter.debugOverlayCanvas; + const gl = painter.context.gl; + const ctx2d = painter.debugOverlayCanvas.getContext('2d'); + ctx2d.clearRect(0, 0, canvas.width, canvas.height); + ctx2d.shadowColor = 'white'; + ctx2d.shadowBlur = 2; + ctx2d.lineWidth = 1.5; + ctx2d.strokeStyle = 'white'; + ctx2d.textBaseline = 'top'; + ctx2d.font = `bold ${ 36 }px Open Sans, sans-serif`; + ctx2d.fillText(text, 5, 5); + ctx2d.strokeText(text, 5, 5); + painter.debugOverlayTexture.update(canvas); + painter.debugOverlayTexture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); +} + +function drawCustom(painter, sourceCache, layer) { + const context = painter.context; + const implementation = layer.implementation; + if (painter.renderPass === 'offscreen') { + const prerender = implementation.prerender; + if (prerender) { + painter.setCustomLayerDefaults(); + context.setColorMode(painter.colorModeForRenderPass()); + prerender.call(implementation, context.gl, painter.transform.customLayerMatrix()); + context.setDirty(); + painter.setBaseState(); + } + } else if (painter.renderPass === 'translucent') { + painter.setCustomLayerDefaults(); + context.setColorMode(painter.colorModeForRenderPass()); + context.setStencilMode(ref_properties.StencilMode.disabled); + const depthMode = implementation.renderingMode === '3d' ? new ref_properties.DepthMode(painter.context.gl.LEQUAL, ref_properties.DepthMode.ReadWrite, painter.depthRangeFor3D) : painter.depthModeForSublayer(0, ref_properties.DepthMode.ReadOnly); + context.setDepthMode(depthMode); + implementation.render(context.gl, painter.transform.customLayerMatrix()); + context.setDirty(); + painter.setBaseState(); + context.bindFramebuffer.set(null); + } +} + +const skyboxAttributes = ref_properties.createLayout([{ + name: 'a_pos_3f', + components: 3, + type: 'Float32' + }]); +const {members, size, alignment} = skyboxAttributes; + +function addVertex(vertexArray, x, y, z) { + vertexArray.emplaceBack(x, y, z); +} +class SkyboxGeometry { + constructor(context) { + this.vertexArray = new ref_properties.StructArrayLayout3f12(); + this.indices = new ref_properties.StructArrayLayout3ui6(); + addVertex(this.vertexArray, -1, -1, 1); + addVertex(this.vertexArray, 1, -1, 1); + addVertex(this.vertexArray, -1, 1, 1); + addVertex(this.vertexArray, 1, 1, 1); + addVertex(this.vertexArray, -1, -1, -1); + addVertex(this.vertexArray, 1, -1, -1); + addVertex(this.vertexArray, -1, 1, -1); + addVertex(this.vertexArray, 1, 1, -1); + this.indices.emplaceBack(5, 1, 3); + this.indices.emplaceBack(3, 7, 5); + this.indices.emplaceBack(6, 2, 0); + this.indices.emplaceBack(0, 4, 6); + this.indices.emplaceBack(2, 6, 7); + this.indices.emplaceBack(7, 3, 2); + this.indices.emplaceBack(5, 4, 0); + this.indices.emplaceBack(0, 1, 5); + this.indices.emplaceBack(0, 2, 3); + this.indices.emplaceBack(3, 1, 0); + this.indices.emplaceBack(7, 6, 4); + this.indices.emplaceBack(4, 5, 7); + this.vertexBuffer = context.createVertexBuffer(this.vertexArray, members); + this.indexBuffer = context.createIndexBuffer(this.indices); + this.segment = ref_properties.SegmentVector.simpleSegment(0, 0, 36, 12); + } +} + +function drawSky(painter, sourceCache, layer) { + const opacity = layer.paint.get('sky-opacity'); + if (opacity === 0) { + return; + } + const context = painter.context; + const type = layer.paint.get('sky-type'); + const depthMode = new ref_properties.DepthMode(context.gl.LEQUAL, ref_properties.DepthMode.ReadOnly, [ + 0, + 1 + ]); + const temporalOffset = painter.frameCounter / 1000 % 1; + if (type === 'atmosphere') { + if (painter.renderPass === 'offscreen') { + if (layer.needsSkyboxCapture(painter)) { + captureSkybox(painter, layer, 32, 32); + layer.markSkyboxValid(painter); + } + } else if (painter.renderPass === 'sky') { + drawSkyboxFromCapture(painter, layer, depthMode, opacity, temporalOffset); + } + } else if (type === 'gradient') { + if (painter.renderPass === 'sky') { + drawSkyboxGradient(painter, layer, depthMode, opacity, temporalOffset); + } + } +} +function drawSkyboxGradient(painter, layer, depthMode, opacity, temporalOffset) { + const context = painter.context; + const gl = context.gl; + const transform = painter.transform; + const program = painter.useProgram('skyboxGradient'); + if (!layer.skyboxGeometry) { + layer.skyboxGeometry = new SkyboxGeometry(context); + } + context.activeTexture.set(gl.TEXTURE0); + let colorRampTexture = layer.colorRampTexture; + if (!colorRampTexture) { + colorRampTexture = layer.colorRampTexture = new ref_properties.Texture(context, layer.colorRamp, gl.RGBA); + } + colorRampTexture.bind(gl.LINEAR, gl.CLAMP_TO_EDGE); + const uniformValues = skyboxGradientUniformValues(transform.skyboxMatrix, layer.getCenter(painter, false), layer.paint.get('sky-gradient-radius'), opacity, temporalOffset); + program.draw(context, gl.TRIANGLES, depthMode, ref_properties.StencilMode.disabled, painter.colorModeForRenderPass(), ref_properties.CullFaceMode.backCW, uniformValues, 'skyboxGradient', layer.skyboxGeometry.vertexBuffer, layer.skyboxGeometry.indexBuffer, layer.skyboxGeometry.segment); +} +function drawSkyboxFromCapture(painter, layer, depthMode, opacity, temporalOffset) { + const context = painter.context; + const gl = context.gl; + const transform = painter.transform; + const program = painter.useProgram('skybox'); + context.activeTexture.set(gl.TEXTURE0); + gl.bindTexture(gl.TEXTURE_CUBE_MAP, layer.skyboxTexture); + const uniformValues = skyboxUniformValues(transform.skyboxMatrix, layer.getCenter(painter, false), 0, opacity, temporalOffset); + program.draw(context, gl.TRIANGLES, depthMode, ref_properties.StencilMode.disabled, painter.colorModeForRenderPass(), ref_properties.CullFaceMode.backCW, uniformValues, 'skybox', layer.skyboxGeometry.vertexBuffer, layer.skyboxGeometry.indexBuffer, layer.skyboxGeometry.segment); +} +function drawSkyboxFace(context, layer, program, faceRotate, sunDirection, i) { + const gl = context.gl; + const atmosphereColor = layer.paint.get('sky-atmosphere-color'); + const atmosphereHaloColor = layer.paint.get('sky-atmosphere-halo-color'); + const sunIntensity = layer.paint.get('sky-atmosphere-sun-intensity'); + const uniformValues = skyboxCaptureUniformValues(ref_properties.fromMat4([], faceRotate), sunDirection, sunIntensity, atmosphereColor, atmosphereHaloColor); + const glFace = gl.TEXTURE_CUBE_MAP_POSITIVE_X + i; + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, glFace, layer.skyboxTexture, 0); + program.draw(context, gl.TRIANGLES, ref_properties.DepthMode.disabled, ref_properties.StencilMode.disabled, ref_properties.ColorMode.unblended, ref_properties.CullFaceMode.frontCW, uniformValues, 'skyboxCapture', layer.skyboxGeometry.vertexBuffer, layer.skyboxGeometry.indexBuffer, layer.skyboxGeometry.segment); +} +function captureSkybox(painter, layer, width, height) { + const context = painter.context; + const gl = context.gl; + let fbo = layer.skyboxFbo; + if (!fbo) { + fbo = layer.skyboxFbo = context.createFramebuffer(width, height, false); + layer.skyboxGeometry = new SkyboxGeometry(context); + layer.skyboxTexture = context.gl.createTexture(); + gl.bindTexture(gl.TEXTURE_CUBE_MAP, layer.skyboxTexture); + gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.LINEAR); + gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.LINEAR); + for (let i = 0; i < 6; ++i) { + const glFace = gl.TEXTURE_CUBE_MAP_POSITIVE_X + i; + gl.texImage2D(glFace, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); + } + } + context.bindFramebuffer.set(fbo.framebuffer); + context.viewport.set([ + 0, + 0, + width, + height + ]); + const sunDirection = layer.getCenter(painter, true); + const program = painter.useProgram('skyboxCapture'); + const faceRotate = new Float64Array(16); + ref_properties.identity(faceRotate); + ref_properties.rotateY(faceRotate, faceRotate, -Math.PI * 0.5); + drawSkyboxFace(context, layer, program, faceRotate, sunDirection, 0); + ref_properties.identity(faceRotate); + ref_properties.rotateY(faceRotate, faceRotate, Math.PI * 0.5); + drawSkyboxFace(context, layer, program, faceRotate, sunDirection, 1); + ref_properties.identity(faceRotate); + ref_properties.rotateX(faceRotate, faceRotate, -Math.PI * 0.5); + drawSkyboxFace(context, layer, program, faceRotate, sunDirection, 2); + ref_properties.identity(faceRotate); + ref_properties.rotateX(faceRotate, faceRotate, Math.PI * 0.5); + drawSkyboxFace(context, layer, program, faceRotate, sunDirection, 3); + ref_properties.identity(faceRotate); + drawSkyboxFace(context, layer, program, faceRotate, sunDirection, 4); + ref_properties.identity(faceRotate); + ref_properties.rotateY(faceRotate, faceRotate, Math.PI); + drawSkyboxFace(context, layer, program, faceRotate, sunDirection, 5); + context.viewport.set([ + 0, + 0, + painter.width, + painter.height + ]); +} + +const draw$1 = { + symbol: drawSymbols, + circle: drawCircles, + heatmap: drawHeatmap, + line: drawLine, + fill: drawFill, + 'fill-extrusion': draw, + hillshade: drawHillshade, + raster: drawRaster, + background: drawBackground, + sky: drawSky, + debug: drawDebug, + custom: drawCustom +}; +class Painter { + constructor(gl, transform) { + this.context = new ref_properties.Context(gl); + this.transform = transform; + this._tileTextures = {}; + this.frameCopies = []; + this.loadTimeStamps = []; + this.setup(); + this.numSublayers = ref_properties.SourceCache.maxUnderzooming + ref_properties.SourceCache.maxOverzooming + 1; + this.depthEpsilon = 1 / Math.pow(2, 16); + this.crossTileSymbolIndex = new CrossTileSymbolIndex(); + this.gpuTimers = {}; + this.frameCounter = 0; + } + updateTerrain(style, cameraChanging) { + const enabled = !!style && !!style.terrain; + if (!enabled && (!this._terrain || !this._terrain.enabled)) + return; + if (!this._terrain) { + this._terrain = new Terrain$1(this, style); + } + const terrain = this._terrain; + this.transform.elevation = enabled ? terrain : null; + terrain.update(style, this.transform, cameraChanging); + } + get terrain() { + return this._terrain && this._terrain.enabled ? this._terrain : null; + } + resize(width, height) { + this.width = width * ref_properties.browser.devicePixelRatio; + this.height = height * ref_properties.browser.devicePixelRatio; + this.context.viewport.set([ + 0, + 0, + this.width, + this.height + ]); + if (this.style) { + for (const layerId of this.style.order) { + this.style._layers[layerId].resize(); + } + } + } + setup() { + const context = this.context; + const tileExtentArray = new ref_properties.StructArrayLayout2i4(); + tileExtentArray.emplaceBack(0, 0); + tileExtentArray.emplaceBack(ref_properties.EXTENT, 0); + tileExtentArray.emplaceBack(0, ref_properties.EXTENT); + tileExtentArray.emplaceBack(ref_properties.EXTENT, ref_properties.EXTENT); + this.tileExtentBuffer = context.createVertexBuffer(tileExtentArray, ref_properties.posAttributes.members); + this.tileExtentSegments = ref_properties.SegmentVector.simpleSegment(0, 0, 4, 2); + const debugArray = new ref_properties.StructArrayLayout2i4(); + debugArray.emplaceBack(0, 0); + debugArray.emplaceBack(ref_properties.EXTENT, 0); + debugArray.emplaceBack(0, ref_properties.EXTENT); + debugArray.emplaceBack(ref_properties.EXTENT, ref_properties.EXTENT); + this.debugBuffer = context.createVertexBuffer(debugArray, ref_properties.posAttributes.members); + this.debugSegments = ref_properties.SegmentVector.simpleSegment(0, 0, 4, 5); + const rasterBoundsArray = new ref_properties.StructArrayLayout4i8(); + rasterBoundsArray.emplaceBack(0, 0, 0, 0); + rasterBoundsArray.emplaceBack(ref_properties.EXTENT, 0, ref_properties.EXTENT, 0); + rasterBoundsArray.emplaceBack(0, ref_properties.EXTENT, 0, ref_properties.EXTENT); + rasterBoundsArray.emplaceBack(ref_properties.EXTENT, ref_properties.EXTENT, ref_properties.EXTENT, ref_properties.EXTENT); + this.rasterBoundsBuffer = context.createVertexBuffer(rasterBoundsArray, rasterBoundsAttributes.members); + this.rasterBoundsSegments = ref_properties.SegmentVector.simpleSegment(0, 0, 4, 2); + const viewportArray = new ref_properties.StructArrayLayout2i4(); + viewportArray.emplaceBack(0, 0); + viewportArray.emplaceBack(1, 0); + viewportArray.emplaceBack(0, 1); + viewportArray.emplaceBack(1, 1); + this.viewportBuffer = context.createVertexBuffer(viewportArray, ref_properties.posAttributes.members); + this.viewportSegments = ref_properties.SegmentVector.simpleSegment(0, 0, 4, 2); + const tileLineStripIndices = new ref_properties.StructArrayLayout1ui2(); + tileLineStripIndices.emplaceBack(0); + tileLineStripIndices.emplaceBack(1); + tileLineStripIndices.emplaceBack(3); + tileLineStripIndices.emplaceBack(2); + tileLineStripIndices.emplaceBack(0); + this.tileBorderIndexBuffer = context.createIndexBuffer(tileLineStripIndices); + const quadTriangleIndices = new ref_properties.StructArrayLayout3ui6(); + quadTriangleIndices.emplaceBack(0, 1, 2); + quadTriangleIndices.emplaceBack(2, 1, 3); + this.quadTriangleIndexBuffer = context.createIndexBuffer(quadTriangleIndices); + this.emptyTexture = new ref_properties.Texture(context, { + width: 1, + height: 1, + data: new Uint8Array([ + 0, + 0, + 0, + 0 + ]) + }, context.gl.RGBA); + const gl = this.context.gl; + this.stencilClearMode = new ref_properties.StencilMode({ + func: gl.ALWAYS, + mask: 0 + }, 0, 255, gl.ZERO, gl.ZERO, gl.ZERO); + this.loadTimeStamps.push(ref_properties.window.performance.now()); + } + clearStencil() { + const context = this.context; + const gl = context.gl; + this.nextStencilID = 1; + this.currentStencilSource = undefined; + const matrix = ref_properties.create(); + ref_properties.ortho(matrix, 0, this.width, this.height, 0, 0, 1); + ref_properties.scale(matrix, matrix, [ + gl.drawingBufferWidth, + gl.drawingBufferHeight, + 0 + ]); + this.useProgram('clippingMask').draw(context, gl.TRIANGLES, ref_properties.DepthMode.disabled, this.stencilClearMode, ref_properties.ColorMode.disabled, ref_properties.CullFaceMode.disabled, clippingMaskUniformValues(matrix), '$clipping', this.viewportBuffer, this.quadTriangleIndexBuffer, this.viewportSegments); + } + _renderTileClippingMasks(layer, sourceCache, tileIDs) { + if (!sourceCache || this.currentStencilSource === sourceCache.id || !layer.isTileClipped() || !tileIDs || !tileIDs.length) + return; + this.currentStencilSource = sourceCache.id; + const context = this.context; + const gl = context.gl; + if (this.nextStencilID + tileIDs.length > 256) { + this.clearStencil(); + } + context.setColorMode(ref_properties.ColorMode.disabled); + context.setDepthMode(ref_properties.DepthMode.disabled); + const program = this.useProgram('clippingMask'); + this._tileClippingMaskIDs = {}; + for (const tileID of tileIDs) { + const id = this._tileClippingMaskIDs[tileID.key] = this.nextStencilID++; + program.draw(context, gl.TRIANGLES, ref_properties.DepthMode.disabled, new ref_properties.StencilMode({ + func: gl.ALWAYS, + mask: 0 + }, id, 255, gl.KEEP, gl.KEEP, gl.REPLACE), ref_properties.ColorMode.disabled, ref_properties.CullFaceMode.disabled, clippingMaskUniformValues(tileID.posMatrix), '$clipping', this.tileExtentBuffer, this.quadTriangleIndexBuffer, this.tileExtentSegments); + } + } + stencilModeFor3D() { + this.currentStencilSource = undefined; + if (this.nextStencilID + 1 > 256) { + this.clearStencil(); + } + const id = this.nextStencilID++; + const gl = this.context.gl; + return new ref_properties.StencilMode({ + func: gl.NOTEQUAL, + mask: 255 + }, id, 255, gl.KEEP, gl.KEEP, gl.REPLACE); + } + stencilModeForClipping(tileID) { + if (this.terrain) + return this.terrain.stencilModeForRTTOverlap(tileID); + const gl = this.context.gl; + return new ref_properties.StencilMode({ + func: gl.EQUAL, + mask: 255 + }, this._tileClippingMaskIDs[tileID.key], 0, gl.KEEP, gl.KEEP, gl.REPLACE); + } + stencilConfigForOverlap(tileIDs) { + const gl = this.context.gl; + const coords = tileIDs.sort((a, b) => b.overscaledZ - a.overscaledZ); + const minTileZ = coords[coords.length - 1].overscaledZ; + const stencilValues = coords[0].overscaledZ - minTileZ + 1; + if (stencilValues > 1) { + this.currentStencilSource = undefined; + if (this.nextStencilID + stencilValues > 256) { + this.clearStencil(); + } + const zToStencilMode = {}; + for (let i = 0; i < stencilValues; i++) { + zToStencilMode[i + minTileZ] = new ref_properties.StencilMode({ + func: gl.GEQUAL, + mask: 255 + }, i + this.nextStencilID, 255, gl.KEEP, gl.KEEP, gl.REPLACE); + } + this.nextStencilID += stencilValues; + return [ + zToStencilMode, + coords + ]; + } + return [ + { [minTileZ]: ref_properties.StencilMode.disabled }, + coords + ]; + } + colorModeForRenderPass() { + const gl = this.context.gl; + if (this._showOverdrawInspector) { + const numOverdrawSteps = 8; + const a = 1 / numOverdrawSteps; + return new ref_properties.ColorMode([ + gl.CONSTANT_COLOR, + gl.ONE + ], new ref_properties.Color(a, a, a, 0), [ + true, + true, + true, + true + ]); + } else if (this.renderPass === 'opaque') { + return ref_properties.ColorMode.unblended; + } else { + return ref_properties.ColorMode.alphaBlended; + } + } + depthModeForSublayer(n, mask, func) { + if (!this.opaquePassEnabledForLayer()) + return ref_properties.DepthMode.disabled; + const depth = 1 - ((1 + this.currentLayer) * this.numSublayers + n) * this.depthEpsilon; + return new ref_properties.DepthMode(func || this.context.gl.LEQUAL, mask, [ + depth, + depth + ]); + } + opaquePassEnabledForLayer() { + return this.currentLayer < this.opaquePassCutoff; + } + render(style, options) { + this.style = style; + this.options = options; + this.lineAtlas = style.lineAtlas; + this.imageManager = style.imageManager; + this.glyphManager = style.glyphManager; + this.symbolFadeChange = style.placement.symbolFadeChange(ref_properties.browser.now()); + this.imageManager.beginFrame(); + const layerIds = this.style.order; + const sourceCaches = this.style._sourceCaches; + for (const id in sourceCaches) { + const sourceCache = sourceCaches[id]; + if (sourceCache.used) { + sourceCache.prepare(this.context); + } + } + const coordsAscending = {}; + const coordsDescending = {}; + const coordsDescendingSymbol = {}; + for (const id in sourceCaches) { + const sourceCache = sourceCaches[id]; + coordsAscending[id] = sourceCache.getVisibleCoordinates(); + coordsDescending[id] = coordsAscending[id].slice().reverse(); + coordsDescendingSymbol[id] = sourceCache.getVisibleCoordinates(true).reverse(); + } + this.opaquePassCutoff = Infinity; + for (let i = 0; i < layerIds.length; i++) { + const layerId = layerIds[i]; + if (this.style._layers[layerId].is3D()) { + this.opaquePassCutoff = i; + break; + } + } + if (this.terrain) { + this.terrain.updateTileBinding(coordsDescendingSymbol); + this.opaquePassCutoff = 0; + } + this.renderPass = 'offscreen'; + for (const layerId of layerIds) { + const layer = this.style._layers[layerId]; + const sourceCache = style._getLayerSourceCache(layer); + if (!layer.hasOffscreenPass() || layer.isHidden(this.transform.zoom)) + continue; + const coords = sourceCache ? coordsDescending[sourceCache.id] : undefined; + if (!(layer.type === 'custom' || layer.isSky()) && !(coords && coords.length)) + continue; + this.renderLayer(this, sourceCache, layer, coords); + } + this.depthRangeFor3D = [ + 0, + 1 - (style.order.length + 2) * this.numSublayers * this.depthEpsilon + ]; + if (this.terrain && (this.style.hasSymbolLayers() || this.style.hasCircleLayers())) { + this.terrain.drawDepth(); + } + this.context.bindFramebuffer.set(null); + this.context.viewport.set([ + 0, + 0, + this.width, + this.height + ]); + this.context.clear({ + color: options.showOverdrawInspector ? ref_properties.Color.black : ref_properties.Color.transparent, + depth: 1 + }); + this.clearStencil(); + this._showOverdrawInspector = options.showOverdrawInspector; + this.renderPass = 'opaque'; + if (!this.terrain) { + for (this.currentLayer = layerIds.length - 1; this.currentLayer >= 0; this.currentLayer--) { + const layer = this.style._layers[layerIds[this.currentLayer]]; + const sourceCache = style._getLayerSourceCache(layer); + if (layer.isSky()) + continue; + const coords = sourceCache ? coordsDescending[sourceCache.id] : undefined; + this._renderTileClippingMasks(layer, sourceCache, coords); + this.renderLayer(this, sourceCache, layer, coords); + } + } + this.renderPass = 'sky'; + if (this.transform.isHorizonVisible()) { + for (this.currentLayer = 0; this.currentLayer < layerIds.length; this.currentLayer++) { + const layer = this.style._layers[layerIds[this.currentLayer]]; + const sourceCache = style._getLayerSourceCache(layer); + if (!layer.isSky()) + continue; + const coords = sourceCache ? coordsDescending[sourceCache.id] : undefined; + this.renderLayer(this, sourceCache, layer, coords); + } + } + this.renderPass = 'translucent'; + this.currentLayer = 0; + while (this.currentLayer < layerIds.length) { + const layer = this.style._layers[layerIds[this.currentLayer]]; + const sourceCache = style._getLayerSourceCache(layer); + if (layer.isSky()) { + ++this.currentLayer; + continue; + } + if (this.terrain && this.style.isLayerDraped(layer)) { + if (layer.isHidden(this.transform.zoom)) { + ++this.currentLayer; + continue; + } + const terrain = this.terrain; + const prevLayer = this.currentLayer; + this.currentLayer = terrain.renderBatch(this.currentLayer); + continue; + } + const coords = sourceCache ? (layer.type === 'symbol' ? coordsDescendingSymbol : coordsDescending)[sourceCache.id] : undefined; + this._renderTileClippingMasks(layer, sourceCache, sourceCache ? coordsAscending[sourceCache.id] : undefined); + this.renderLayer(this, sourceCache, layer, coords); + ++this.currentLayer; + } + if (this.terrain) { + this.terrain.postRender(); + } + if (this.options.showTileBoundaries || this.options.showQueryGeometry) { + let selectedSource = null; + const layers = ref_properties.values(this.style._layers); + layers.forEach(layer => { + const sourceCache = style._getLayerSourceCache(layer); + if (sourceCache && !layer.isHidden(this.transform.zoom)) { + if (!selectedSource || selectedSource.getSource().maxzoom < sourceCache.getSource().maxzoom) { + selectedSource = sourceCache; + } + } + }); + if (selectedSource) { + if (this.options.showTileBoundaries) { + draw$1.debug(this, selectedSource, selectedSource.getVisibleCoordinates()); + } + } + } + if (this.options.showPadding) { + drawDebugPadding(this); + } + this.context.setDefault(); + this.frameCounter = (this.frameCounter + 1) % ref_properties.MAX_SAFE_INTEGER; + if (this.tileLoaded && this.options.speedIndexTiming) { + this.loadTimeStamps.push(ref_properties.window.performance.now()); + this.saveCanvasCopy(); + } + } + renderLayer(painter, sourceCache, layer, coords) { + if (layer.isHidden(this.transform.zoom)) + return; + if (layer.type !== 'background' && layer.type !== 'sky' && layer.type !== 'custom' && !(coords && coords.length)) + return; + this.id = layer.id; + this.gpuTimingStart(layer); + draw$1[layer.type](painter, sourceCache, layer, coords, this.style.placement.variableOffsets, this.options.isInitialLoad); + this.gpuTimingEnd(); + } + gpuTimingStart(layer) { + if (!this.options.gpuTiming) + return; + const ext = this.context.extTimerQuery; + let layerTimer = this.gpuTimers[layer.id]; + if (!layerTimer) { + layerTimer = this.gpuTimers[layer.id] = { + calls: 0, + cpuTime: 0, + query: ext.createQueryEXT() + }; + } + layerTimer.calls++; + ext.beginQueryEXT(ext.TIME_ELAPSED_EXT, layerTimer.query); + } + gpuTimingEnd() { + if (!this.options.gpuTiming) + return; + const ext = this.context.extTimerQuery; + ext.endQueryEXT(ext.TIME_ELAPSED_EXT); + } + collectGpuTimers() { + const currentLayerTimers = this.gpuTimers; + this.gpuTimers = {}; + return currentLayerTimers; + } + queryGpuTimers(gpuTimers) { + const layers = {}; + for (const layerId in gpuTimers) { + const gpuTimer = gpuTimers[layerId]; + const ext = this.context.extTimerQuery; + const gpuTime = ext.getQueryObjectEXT(gpuTimer.query, ext.QUERY_RESULT_EXT) / (1000 * 1000); + ext.deleteQueryEXT(gpuTimer.query); + layers[layerId] = gpuTime; + } + return layers; + } + translatePosMatrix(matrix, tile, translate, translateAnchor, inViewportPixelUnitsUnits) { + if (!translate[0] && !translate[1]) + return matrix; + const angle = inViewportPixelUnitsUnits ? translateAnchor === 'map' ? this.transform.angle : 0 : translateAnchor === 'viewport' ? -this.transform.angle : 0; + if (angle) { + const sinA = Math.sin(angle); + const cosA = Math.cos(angle); + translate = [ + translate[0] * cosA - translate[1] * sinA, + translate[0] * sinA + translate[1] * cosA + ]; + } + const translation = [ + inViewportPixelUnitsUnits ? translate[0] : pixelsToTileUnits(tile, translate[0], this.transform.zoom), + inViewportPixelUnitsUnits ? translate[1] : pixelsToTileUnits(tile, translate[1], this.transform.zoom), + 0 + ]; + const translatedMatrix = new Float32Array(16); + ref_properties.translate(translatedMatrix, matrix, translation); + return translatedMatrix; + } + saveTileTexture(texture) { + const textures = this._tileTextures[texture.size[0]]; + if (!textures) { + this._tileTextures[texture.size[0]] = [texture]; + } else { + textures.push(texture); + } + } + getTileTexture(size) { + const textures = this._tileTextures[size]; + return textures && textures.length > 0 ? textures.pop() : null; + } + isPatternMissing(image) { + if (!image) + return false; + if (!image.from || !image.to) + return true; + const imagePosA = this.imageManager.getPattern(image.from.toString()); + const imagePosB = this.imageManager.getPattern(image.to.toString()); + return !imagePosA || !imagePosB; + } + currentGlobalDefines() { + const terrain = this.terrain && !this.terrain.renderingToTexture; + const rtt = this.terrain && this.terrain.renderingToTexture; + const defines = []; + if (terrain) + defines.push('TERRAIN'); + if (rtt) + defines.push('RENDER_TO_TEXTURE'); + if (this._showOverdrawInspector) + defines.push('OVERDRAW_INSPECTOR'); + return defines; + } + useProgram(name, programConfiguration, fixedDefines) { + this.cache = this.cache || {}; + const defines = fixedDefines || []; + const globalDefines = this.currentGlobalDefines(); + const allDefines = globalDefines.concat(defines); + const key = Program.cacheKey(name, allDefines, programConfiguration); + if (!this.cache[key]) { + this.cache[key] = new Program(this.context, name, shaders[name], programConfiguration, programUniforms[name], allDefines); + } + return this.cache[key]; + } + setCustomLayerDefaults() { + this.context.unbindVAO(); + this.context.cullFace.setDefault(); + this.context.activeTexture.setDefault(); + this.context.pixelStoreUnpack.setDefault(); + this.context.pixelStoreUnpackPremultiplyAlpha.setDefault(); + this.context.pixelStoreUnpackFlipY.setDefault(); + } + setBaseState() { + const gl = this.context.gl; + this.context.cullFace.set(false); + this.context.viewport.set([ + 0, + 0, + this.width, + this.height + ]); + this.context.blendEquation.set(gl.FUNC_ADD); + } + initDebugOverlayCanvas() { + if (this.debugOverlayCanvas == null) { + this.debugOverlayCanvas = ref_properties.window.document.createElement('canvas'); + this.debugOverlayCanvas.width = 512; + this.debugOverlayCanvas.height = 512; + const gl = this.context.gl; + this.debugOverlayTexture = new ref_properties.Texture(this.context, this.debugOverlayCanvas, gl.RGBA); + } + } + destroy() { + if (this._terrain) { + this._terrain.destroy(); + } + this.emptyTexture.destroy(); + if (this.debugOverlayTexture) { + this.debugOverlayTexture.destroy(); + } + } + prepareDrawTile(tileID) { + if (this.terrain) { + this.terrain.prepareDrawTile(tileID); + } + } + setTileLoadedFlag(flag) { + this.tileLoaded = flag; + } + saveCanvasCopy() { + this.frameCopies.push(this.canvasCopy()); + this.tileLoaded = false; + } + canvasCopy() { + const gl = this.context.gl; + const texture = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, texture); + gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight, 0); + return texture; + } + getCanvasCopiesAndTimestamps() { + return { + canvasCopies: this.frameCopies, + timeStamps: this.loadTimeStamps + }; + } +} + +class EdgeInsets { + constructor(top = 0, bottom = 0, left = 0, right = 0) { + if (isNaN(top) || top < 0 || isNaN(bottom) || bottom < 0 || isNaN(left) || left < 0 || isNaN(right) || right < 0) { + throw new Error('Invalid value for edge-insets, top, bottom, left and right must all be numbers'); + } + this.top = top; + this.bottom = bottom; + this.left = left; + this.right = right; + } + interpolate(start, target, t) { + if (target.top != null && start.top != null) + this.top = ref_properties.number(start.top, target.top, t); + if (target.bottom != null && start.bottom != null) + this.bottom = ref_properties.number(start.bottom, target.bottom, t); + if (target.left != null && start.left != null) + this.left = ref_properties.number(start.left, target.left, t); + if (target.right != null && start.right != null) + this.right = ref_properties.number(start.right, target.right, t); + return this; + } + getCenter(width, height) { + const x = ref_properties.clamp((this.left + width - this.right) / 2, 0, width); + const y = ref_properties.clamp((this.top + height - this.bottom) / 2, 0, height); + return new ref_properties.Point(x, y); + } + equals(other) { + return this.top === other.top && this.bottom === other.bottom && this.left === other.left && this.right === other.right; + } + clone() { + return new EdgeInsets(this.top, this.bottom, this.left, this.right); + } + toJSON() { + return { + top: this.top, + bottom: this.bottom, + left: this.left, + right: this.right + }; + } +} + +function getColumn(matrix, col) { + return [ + matrix[col * 4], + matrix[col * 4 + 1], + matrix[col * 4 + 2], + matrix[col * 4 + 3] + ]; +} +function setColumn(matrix, col, values) { + matrix[col * 4 + 0] = values[0]; + matrix[col * 4 + 1] = values[1]; + matrix[col * 4 + 2] = values[2]; + matrix[col * 4 + 3] = values[3]; +} +function updateTransformOrientation(matrix, orientation) { + const position = getColumn(matrix, 3); + ref_properties.fromQuat(matrix, orientation); + setColumn(matrix, 3, position); +} +function updateTransformPosition(matrix, position) { + setColumn(matrix, 3, [ + position[0], + position[1], + position[2], + 1 + ]); +} +function wrapCameraPosition(position) { + if (!position) + return; + const mercatorCoordinate = Array.isArray(position) ? new ref_properties.MercatorCoordinate(position[0], position[1], position[2]) : position; + mercatorCoordinate.x = ref_properties.wrap(mercatorCoordinate.x, 0, 1); + return mercatorCoordinate; +} +function orientationFromPitchBearing(pitch, bearing) { + const orientation = ref_properties.identity$1([]); + ref_properties.rotateZ$1(orientation, orientation, -bearing); + ref_properties.rotateX$1(orientation, orientation, -pitch); + return orientation; +} +function orientationFromFrame(forward, up) { + const xyForward = [ + forward[0], + forward[1], + 0 + ]; + const xyUp = [ + up[0], + up[1], + 0 + ]; + const epsilon = 1e-15; + if (ref_properties.length(xyForward) >= epsilon) { + const xyDir = ref_properties.normalize([], xyForward); + ref_properties.scale$2(xyUp, xyDir, ref_properties.dot(xyUp, xyDir)); + up[0] = xyUp[0]; + up[1] = xyUp[1]; + } + const right = ref_properties.cross([], up, forward); + if (ref_properties.len(right) < epsilon) { + return null; + } + const bearing = Math.atan2(-right[1], right[0]); + const pitch = Math.atan2(Math.sqrt(forward[0] * forward[0] + forward[1] * forward[1]), -forward[2]); + return orientationFromPitchBearing(pitch, bearing); +} +class FreeCameraOptions { + constructor(position, orientation) { + this.position = position; + this.orientation = orientation; + } + get position() { + return this._position; + } + set position(position) { + this._position = this._renderWorldCopies ? wrapCameraPosition(position) : position; + } + lookAtPoint(location, up) { + this.orientation = null; + if (!this.position) { + return; + } + const altitude = this._elevation ? this._elevation.getAtPoint(ref_properties.MercatorCoordinate.fromLngLat(location)) : 0; + const pos = this.position; + const target = ref_properties.MercatorCoordinate.fromLngLat(location, altitude); + const forward = [ + target.x - pos.x, + target.y - pos.y, + target.z - pos.z + ]; + if (!up) + up = [ + 0, + 0, + 1 + ]; + up[2] = Math.abs(up[2]); + this.orientation = orientationFromFrame(forward, up); + } + setPitchBearing(pitch, bearing) { + this.orientation = orientationFromPitchBearing(ref_properties.degToRad(pitch), ref_properties.degToRad(-bearing)); + } +} +class FreeCamera { + constructor(position, orientation) { + this._transform = ref_properties.identity([]); + this._orientation = ref_properties.identity$1([]); + if (orientation) { + this._orientation = orientation; + updateTransformOrientation(this._transform, this._orientation); + } + if (position) { + updateTransformPosition(this._transform, position); + } + } + get mercatorPosition() { + const pos = this.position; + return new ref_properties.MercatorCoordinate(pos[0], pos[1], pos[2]); + } + get position() { + const col = getColumn(this._transform, 3); + return [ + col[0], + col[1], + col[2] + ]; + } + set position(value) { + updateTransformPosition(this._transform, value); + } + get orientation() { + return this._orientation; + } + set orientation(value) { + this._orientation = value; + updateTransformOrientation(this._transform, this._orientation); + } + getPitchBearing() { + const f = this.forward(); + const r = this.right(); + return { + bearing: Math.atan2(-r[1], r[0]), + pitch: Math.atan2(Math.sqrt(f[0] * f[0] + f[1] * f[1]), -f[2]) + }; + } + setPitchBearing(pitch, bearing) { + this._orientation = orientationFromPitchBearing(pitch, bearing); + updateTransformOrientation(this._transform, this._orientation); + } + forward() { + const col = getColumn(this._transform, 2); + return [ + -col[0], + -col[1], + -col[2] + ]; + } + up() { + const col = getColumn(this._transform, 1); + return [ + -col[0], + -col[1], + -col[2] + ]; + } + right() { + const col = getColumn(this._transform, 0); + return [ + col[0], + col[1], + col[2] + ]; + } + getCameraToWorld(worldSize, pixelsPerMeter) { + const cameraToWorld = new Float64Array(16); + ref_properties.invert(cameraToWorld, this.getWorldToCamera(worldSize, pixelsPerMeter)); + return cameraToWorld; + } + getWorldToCamera(worldSize, pixelsPerMeter) { + const matrix = new Float64Array(16); + const invOrientation = new Float64Array(4); + const invPosition = this.position; + ref_properties.conjugate(invOrientation, this._orientation); + ref_properties.scale$2(invPosition, invPosition, -worldSize); + ref_properties.fromQuat(matrix, invOrientation); + ref_properties.translate(matrix, matrix, invPosition); + matrix[1] *= -1; + matrix[5] *= -1; + matrix[9] *= -1; + matrix[13] *= -1; + matrix[8] *= pixelsPerMeter; + matrix[9] *= pixelsPerMeter; + matrix[10] *= pixelsPerMeter; + matrix[11] *= pixelsPerMeter; + return matrix; + } + getCameraToClipPerspective(fovy, aspectRatio, nearZ, farZ) { + const matrix = new Float64Array(16); + ref_properties.perspective(matrix, fovy, aspectRatio, nearZ, farZ); + return matrix; + } + clone() { + return new FreeCamera([...this.position], [...this.orientation]); + } +} + +const NUM_WORLD_COPIES = 3; +const DEFAULT_MIN_ZOOM = 0; +class Transform { + constructor(minZoom, maxZoom, minPitch, maxPitch, renderWorldCopies) { + this.tileSize = 512; + this.maxValidLatitude = 85.051129; + this._renderWorldCopies = renderWorldCopies === undefined ? true : renderWorldCopies; + this._minZoom = minZoom || DEFAULT_MIN_ZOOM; + this._maxZoom = maxZoom || 22; + this._minPitch = minPitch === undefined || minPitch === null ? 0 : minPitch; + this._maxPitch = maxPitch === undefined || maxPitch === null ? 60 : maxPitch; + this.setMaxBounds(); + this.width = 0; + this.height = 0; + this._center = new ref_properties.LngLat(0, 0); + this.zoom = 0; + this.angle = 0; + this._fov = 0.6435011087932844; + this._pitch = 0; + this._unmodified = true; + this._edgeInsets = new EdgeInsets(); + this._posMatrixCache = {}; + this._alignedPosMatrixCache = {}; + this._camera = new FreeCamera(); + this._centerAltitude = 0; + this.cameraElevationReference = 'ground'; + this._horizonShift = 0.1; + } + clone() { + const clone = new Transform(this._minZoom, this._maxZoom, this._minPitch, this.maxPitch, this._renderWorldCopies); + clone._elevation = this._elevation; + clone._centerAltitude = this._centerAltitude; + clone.tileSize = this.tileSize; + clone.latRange = this.latRange; + clone.width = this.width; + clone.height = this.height; + clone.cameraElevationReference = this.cameraElevationReference; + clone._center = this._center; + clone._setZoom(this.zoom); + clone._cameraZoom = this._cameraZoom; + clone.angle = this.angle; + clone._fov = this._fov; + clone._pitch = this._pitch; + clone._unmodified = this._unmodified; + clone._edgeInsets = this._edgeInsets.clone(); + clone._camera = this._camera.clone(); + clone._calcMatrices(); + clone.freezeTileCoverage = this.freezeTileCoverage; + return clone; + } + get elevation() { + return this._elevation; + } + set elevation(elevation) { + if (this._elevation === elevation) + return; + this._elevation = elevation; + if (!elevation) { + this._cameraZoom = null; + this._centerAltitude = 0; + } else { + if (this._updateCenterElevation()) + this._updateCameraOnTerrain(); + } + this._calcMatrices(); + } + updateElevation(constrainCameraOverTerrain) { + if (this._terrainEnabled() && this._cameraZoom == null) { + if (this._updateCenterElevation()) + this._updateCameraOnTerrain(); + } + if (constrainCameraOverTerrain) { + this._constrainCameraAltitude(); + } + this._calcMatrices(); + } + get minZoom() { + return this._minZoom; + } + set minZoom(zoom) { + if (this._minZoom === zoom) + return; + this._minZoom = zoom; + this.zoom = Math.max(this.zoom, zoom); + } + get maxZoom() { + return this._maxZoom; + } + set maxZoom(zoom) { + if (this._maxZoom === zoom) + return; + this._maxZoom = zoom; + this.zoom = Math.min(this.zoom, zoom); + } + get minPitch() { + return this._minPitch; + } + set minPitch(pitch) { + if (this._minPitch === pitch) + return; + this._minPitch = pitch; + this.pitch = Math.max(this.pitch, pitch); + } + get maxPitch() { + return this._maxPitch; + } + set maxPitch(pitch) { + if (this._maxPitch === pitch) + return; + this._maxPitch = pitch; + this.pitch = Math.min(this.pitch, pitch); + } + get renderWorldCopies() { + return this._renderWorldCopies; + } + set renderWorldCopies(renderWorldCopies) { + if (renderWorldCopies === undefined) { + renderWorldCopies = true; + } else if (renderWorldCopies === null) { + renderWorldCopies = false; + } + this._renderWorldCopies = renderWorldCopies; + } + get worldSize() { + return this.tileSize * this.scale; + } + get centerOffset() { + return this.centerPoint._sub(this.size._div(2)); + } + get size() { + return new ref_properties.Point(this.width, this.height); + } + get bearing() { + return -this.angle / Math.PI * 180; + } + set bearing(bearing) { + const b = -ref_properties.wrap(bearing, -180, 180) * Math.PI / 180; + if (this.angle === b) + return; + this._unmodified = false; + this.angle = b; + this._calcMatrices(); + this.rotationMatrix = ref_properties.create$2(); + ref_properties.rotate(this.rotationMatrix, this.rotationMatrix, this.angle); + } + get pitch() { + return this._pitch / Math.PI * 180; + } + set pitch(pitch) { + const p = ref_properties.clamp(pitch, this.minPitch, this.maxPitch) / 180 * Math.PI; + if (this._pitch === p) + return; + this._unmodified = false; + this._pitch = p; + this._calcMatrices(); + } + get fov() { + return this._fov / Math.PI * 180; + } + set fov(fov) { + fov = Math.max(0.01, Math.min(60, fov)); + if (this._fov === fov) + return; + this._unmodified = false; + this._fov = fov / 180 * Math.PI; + this._calcMatrices(); + } + get zoom() { + return this._zoom; + } + set zoom(zoom) { + const z = Math.min(Math.max(zoom, this.minZoom), this.maxZoom); + if (this._zoom === z) + return; + this._unmodified = false; + this._setZoom(z); + if (this._terrainEnabled()) { + this._updateCameraOnTerrain(); + } + this._constrain(); + this._calcMatrices(); + } + _setZoom(z) { + this._zoom = z; + this.scale = this.zoomScale(z); + this.tileZoom = Math.floor(z); + this.zoomFraction = z - this.tileZoom; + } + _updateCenterElevation() { + if (!this._elevation) + return false; + const elevationAtCenter = this._elevation.getAtPoint(ref_properties.MercatorCoordinate.fromLngLat(this.center), -1); + if (elevationAtCenter === -1) { + this._cameraZoom = null; + return false; + } + this._centerAltitude = elevationAtCenter; + return true; + } + _updateCameraOnTerrain() { + const height = this.cameraToCenterDistance / this.worldSize; + const terrainElevation = ref_properties.mercatorZfromAltitude(this._centerAltitude, this.center.lat); + this._cameraZoom = this._zoomFromMercatorZ(terrainElevation + height); + } + get center() { + return this._center; + } + set center(center) { + if (center.lat === this._center.lat && center.lng === this._center.lng) + return; + this._unmodified = false; + this._center = center; + if (this._terrainEnabled()) { + if (this.cameraElevationReference === 'ground') { + if (this._updateCenterElevation()) + this._updateCameraOnTerrain(); + else + this._cameraZoom = null; + } else { + this._updateZoomFromElevation(); + } + } + this._constrain(); + this._calcMatrices(); + } + _updateZoomFromElevation() { + if (this._cameraZoom == null || !this._elevation) + return; + const cameraZoom = this._cameraZoom; + const elevationAtCenter = this._elevation.getAtPoint(ref_properties.MercatorCoordinate.fromLngLat(this.center)); + const mercatorElevation = ref_properties.mercatorZfromAltitude(elevationAtCenter, this.center.lat); + const altitude = this._mercatorZfromZoom(cameraZoom); + const minHeight = this._mercatorZfromZoom(this._maxZoom); + const height = Math.max(altitude - mercatorElevation, minHeight); + this._setZoom(this._zoomFromMercatorZ(height)); + } + get padding() { + return this._edgeInsets.toJSON(); + } + set padding(padding) { + if (this._edgeInsets.equals(padding)) + return; + this._unmodified = false; + this._edgeInsets.interpolate(this._edgeInsets, padding, 1); + this._calcMatrices(); + } + computeZoomRelativeTo(position) { + const centerOnTargetAltitude = this.rayIntersectionCoordinate(this.pointRayIntersection(this.centerPoint, position.toAltitude())); + let targetPosition; + if (position.z < this._camera.position[2]) { + targetPosition = [ + centerOnTargetAltitude.x, + centerOnTargetAltitude.y, + centerOnTargetAltitude.z + ]; + } else { + targetPosition = [ + position.x, + position.y, + position.z + ]; + } + const distToTarget = ref_properties.length(ref_properties.sub([], this._camera.position, targetPosition)); + return ref_properties.clamp(this._zoomFromMercatorZ(distToTarget), this._minZoom, this._maxZoom); + } + setFreeCameraOptions(options) { + if (!this.height) + return; + if (!options.position && !options.orientation) + return; + this._updateCameraState(); + let changed = false; + if (options.orientation && !ref_properties.exactEquals(options.orientation, this._camera.orientation)) { + changed = this._setCameraOrientation(options.orientation); + } + if (options.position) { + const newPosition = [ + options.position.x, + options.position.y, + options.position.z + ]; + if (!ref_properties.exactEquals$1(newPosition, this._camera.position)) { + this._setCameraPosition(newPosition); + changed = true; + } + } + if (changed) { + this._updateStateFromCamera(); + this.recenterOnTerrain(); + } + } + getFreeCameraOptions() { + this._updateCameraState(); + const pos = this._camera.position; + const options = new FreeCameraOptions(); + options.position = new ref_properties.MercatorCoordinate(pos[0], pos[1], pos[2]); + options.orientation = this._camera.orientation; + options._elevation = this.elevation; + options._renderWorldCopies = this._renderWorldCopies; + return options; + } + _setCameraOrientation(orientation) { + if (!ref_properties.length$1(orientation)) + return false; + ref_properties.normalize$1(orientation, orientation); + const forward = ref_properties.transformQuat([], [ + 0, + 0, + -1 + ], orientation); + const up = ref_properties.transformQuat([], [ + 0, + -1, + 0 + ], orientation); + if (up[2] < 0) + return false; + const updatedOrientation = orientationFromFrame(forward, up); + if (!updatedOrientation) + return false; + this._camera.orientation = updatedOrientation; + return true; + } + _setCameraPosition(position) { + const minWorldSize = this.zoomScale(this.minZoom) * this.tileSize; + const maxWorldSize = this.zoomScale(this.maxZoom) * this.tileSize; + const distToCenter = this.cameraToCenterDistance; + position[2] = ref_properties.clamp(position[2], distToCenter / maxWorldSize, distToCenter / minWorldSize); + this._camera.position = position; + } + get centerPoint() { + return this._edgeInsets.getCenter(this.width, this.height); + } + get fovAboveCenter() { + return this._fov * (0.5 + this.centerOffset.y / this.height); + } + isPaddingEqual(padding) { + return this._edgeInsets.equals(padding); + } + interpolatePadding(start, target, t) { + this._unmodified = false; + this._edgeInsets.interpolate(start, target, t); + this._constrain(); + this._calcMatrices(); + } + coveringZoomLevel(options) { + const z = (options.roundZoom ? Math.round : Math.floor)(this.zoom + this.scaleZoom(this.tileSize / options.tileSize)); + return Math.max(0, z); + } + getVisibleUnwrappedCoordinates(tileID) { + const result = [new ref_properties.UnwrappedTileID(0, tileID)]; + if (this._renderWorldCopies) { + const utl = this.pointCoordinate(new ref_properties.Point(0, 0)); + const utr = this.pointCoordinate(new ref_properties.Point(this.width, 0)); + const ubl = this.pointCoordinate(new ref_properties.Point(this.width, this.height)); + const ubr = this.pointCoordinate(new ref_properties.Point(0, this.height)); + const w0 = Math.floor(Math.min(utl.x, utr.x, ubl.x, ubr.x)); + const w1 = Math.floor(Math.max(utl.x, utr.x, ubl.x, ubr.x)); + const extraWorldCopy = 1; + for (let w = w0 - extraWorldCopy; w <= w1 + extraWorldCopy; w++) { + if (w === 0) + continue; + result.push(new ref_properties.UnwrappedTileID(w, tileID)); + } + } + return result; + } + coveringTiles(options) { + let z = this.coveringZoomLevel(options); + const actualZ = z; + const useElevationData = !!options.useElevationData; + if (options.minzoom !== undefined && z < options.minzoom) + return []; + if (options.maxzoom !== undefined && z > options.maxzoom) + z = options.maxzoom; + const centerCoord = ref_properties.MercatorCoordinate.fromLngLat(this.center); + const numTiles = 1 << z; + const centerPoint = [ + numTiles * centerCoord.x, + numTiles * centerCoord.y, + 0 + ]; + const cameraFrustum = ref_properties.Frustum.fromInvProjectionMatrix(this.invProjMatrix, this.worldSize, z); + const cameraCoord = this.pointCoordinate(this.getCameraPoint()); + const meterToTile = numTiles * ref_properties.mercatorZfromAltitude(1, this.center.lat); + const cameraAltitude = this._camera.position[2] / ref_properties.mercatorZfromAltitude(1, this.center.lat); + const cameraPoint = [ + numTiles * cameraCoord.x, + numTiles * cameraCoord.y, + cameraAltitude + ]; + const zoomSplitDistance = this.cameraToCenterDistance / options.tileSize * (options.roundZoom ? 1 : 0.502); + const minZoom = this.pitch <= 60 && this._edgeInsets.top <= this._edgeInsets.bottom && !this._elevation ? z : 0; + const maxRange = this.elevation ? this.elevation.exaggeration() * 10000 : 0; + const newRootTile = wrap => { + const max = maxRange; + const min = -maxRange; + return { + aabb: new ref_properties.Aabb([ + wrap * numTiles, + 0, + min + ], [ + (wrap + 1) * numTiles, + numTiles, + max + ]), + zoom: 0, + x: 0, + y: 0, + wrap, + fullyVisible: false + }; + }; + const stack = []; + const result = []; + const maxZoom = z; + const overscaledZ = options.reparseOverscaled ? actualZ : z; + const getAABBFromElevation = (aabb, tileID) => { + if (!this._elevation) + return; + const minmax = this._elevation.getMinMaxForTile(tileID); + if (minmax) { + aabb.min[2] = minmax.min; + aabb.max[2] = minmax.max; + aabb.center[2] = (aabb.min[2] + aabb.max[2]) / 2; + } + }; + const square = a => a * a; + const cameraHeightSqr = square((cameraAltitude - this._centerAltitude) * meterToTile); + const distToSplitScale = (dzSqr, dSqr) => { + const acuteAngleThresholdSin = 0.707; + const stretchTile = 1.1; + if (dSqr * square(acuteAngleThresholdSin) < dzSqr) + return 1; + const r = Math.sqrt(dSqr / dzSqr); + const k = r - 1 / acuteAngleThresholdSin; + return r / (1 / acuteAngleThresholdSin + (Math.pow(stretchTile, k + 1) - 1) / (stretchTile - 1) - 1); + }; + if (this._renderWorldCopies) { + for (let i = 1; i <= NUM_WORLD_COPIES; i++) { + stack.push(newRootTile(-i)); + stack.push(newRootTile(i)); + } + } + stack.push(newRootTile(0)); + while (stack.length > 0) { + const it = stack.pop(); + const x = it.x; + const y = it.y; + let fullyVisible = it.fullyVisible; + if (!fullyVisible) { + const intersectResult = it.aabb.intersects(cameraFrustum); + if (intersectResult === 0) + continue; + fullyVisible = intersectResult === 2; + } + let shouldSplit = true; + if (minZoom <= it.zoom && it.zoom < maxZoom) { + const dx = it.aabb.distanceX(cameraPoint); + const dy = it.aabb.distanceY(cameraPoint); + let dzSqr = cameraHeightSqr; + if (useElevationData) { + dzSqr = square(it.aabb.distanceZ(cameraPoint) * meterToTile); + } + const distanceSqr = dx * dx + dy * dy + dzSqr; + const distToSplit = (1 << maxZoom - it.zoom) * zoomSplitDistance; + const distToSplitSqr = square(distToSplit * distToSplitScale(Math.max(dzSqr, cameraHeightSqr), distanceSqr)); + shouldSplit = distanceSqr < distToSplitSqr; + } + if (it.zoom === maxZoom || !shouldSplit) { + const tileZoom = it.zoom === maxZoom ? overscaledZ : it.zoom; + if (!!options.minzoom && options.minzoom > tileZoom) { + continue; + } + const dx = centerPoint[0] - (0.5 + x + (it.wrap << it.zoom)) * (1 << z - it.zoom); + const dy = centerPoint[1] - 0.5 - y; + const id = it.tileID ? it.tileID : new ref_properties.OverscaledTileID(tileZoom, it.wrap, it.zoom, x, y); + result.push({ + tileID: id, + distanceSq: dx * dx + dy * dy + }); + continue; + } + for (let i = 0; i < 4; i++) { + const childX = (x << 1) + i % 2; + const childY = (y << 1) + (i >> 1); + const aabb = it.aabb.quadrant(i); + let tileID = null; + if (useElevationData && it.zoom > maxZoom - 6) { + tileID = new ref_properties.OverscaledTileID(it.zoom + 1 === maxZoom ? overscaledZ : it.zoom + 1, it.wrap, it.zoom + 1, childX, childY); + getAABBFromElevation(aabb, tileID); + } + stack.push({ + aabb, + zoom: it.zoom + 1, + x: childX, + y: childY, + wrap: it.wrap, + fullyVisible, + tileID + }); + } + } + const cover = result.sort((a, b) => a.distanceSq - b.distanceSq).map(a => a.tileID); + return cover; + } + resize(width, height) { + this.width = width; + this.height = height; + this.pixelsToGLUnits = [ + 2 / width, + -2 / height + ]; + this._constrain(); + this._calcMatrices(); + } + get unmodified() { + return this._unmodified; + } + zoomScale(zoom) { + return Math.pow(2, zoom); + } + scaleZoom(scale) { + return Math.log(scale) / Math.LN2; + } + project(lnglat) { + const lat = ref_properties.clamp(lnglat.lat, -this.maxValidLatitude, this.maxValidLatitude); + return new ref_properties.Point(ref_properties.mercatorXfromLng(lnglat.lng) * this.worldSize, ref_properties.mercatorYfromLat(lat) * this.worldSize); + } + unproject(point) { + return new ref_properties.MercatorCoordinate(point.x / this.worldSize, point.y / this.worldSize).toLngLat(); + } + get point() { + return this.project(this.center); + } + setLocationAtPoint(lnglat, point) { + const a = this.pointCoordinate(point); + const b = this.pointCoordinate(this.centerPoint); + const loc = this.locationCoordinate(lnglat); + const newCenter = new ref_properties.MercatorCoordinate(loc.x - (a.x - b.x), loc.y - (a.y - b.y)); + this.center = this.coordinateLocation(newCenter); + if (this._renderWorldCopies) { + this.center = this.center.wrap(); + } + } + setLocation(location) { + this.center = this.coordinateLocation(location); + if (this._renderWorldCopies) { + this.center = this.center.wrap(); + } + } + locationPoint(lnglat) { + return this._coordinatePoint(this.locationCoordinate(lnglat), false); + } + locationPoint3D(lnglat) { + return this._coordinatePoint(this.locationCoordinate(lnglat), true); + } + pointLocation(p) { + return this.coordinateLocation(this.pointCoordinate(p)); + } + pointLocation3D(p) { + return this.coordinateLocation(this.pointCoordinate3D(p)); + } + locationCoordinate(lnglat) { + return ref_properties.MercatorCoordinate.fromLngLat(lnglat); + } + coordinateLocation(coord) { + return coord.toLngLat(); + } + pointRayIntersection(p, z) { + const targetZ = z !== undefined && z !== null ? z : this._centerAltitude; + const p0 = [ + p.x, + p.y, + 0, + 1 + ]; + const p1 = [ + p.x, + p.y, + 1, + 1 + ]; + ref_properties.transformMat4(p0, p0, this.pixelMatrixInverse); + ref_properties.transformMat4(p1, p1, this.pixelMatrixInverse); + const w0 = p0[3]; + const w1 = p1[3]; + ref_properties.scale$1(p0, p0, 1 / w0); + ref_properties.scale$1(p1, p1, 1 / w1); + const z0 = p0[2]; + const z1 = p1[2]; + const t = z0 === z1 ? 0 : (targetZ - z0) / (z1 - z0); + return { + p0, + p1, + t + }; + } + screenPointToMercatorRay(p) { + const p0 = [ + p.x, + p.y, + 0, + 1 + ]; + const p1 = [ + p.x, + p.y, + 1, + 1 + ]; + ref_properties.transformMat4(p0, p0, this.pixelMatrixInverse); + ref_properties.transformMat4(p1, p1, this.pixelMatrixInverse); + ref_properties.scale$1(p0, p0, 1 / p0[3]); + ref_properties.scale$1(p1, p1, 1 / p1[3]); + p0[2] = ref_properties.mercatorZfromAltitude(p0[2], this._center.lat) * this.worldSize; + p1[2] = ref_properties.mercatorZfromAltitude(p1[2], this._center.lat) * this.worldSize; + ref_properties.scale$1(p0, p0, 1 / this.worldSize); + ref_properties.scale$1(p1, p1, 1 / this.worldSize); + return new ref_properties.Ray([ + p0[0], + p0[1], + p0[2] + ], ref_properties.normalize([], ref_properties.sub([], p1, p0))); + } + rayIntersectionCoordinate(rayIntersection) { + const {p0, p1, t} = rayIntersection; + const z0 = ref_properties.mercatorZfromAltitude(p0[2], this._center.lat); + const z1 = ref_properties.mercatorZfromAltitude(p1[2], this._center.lat); + return new ref_properties.MercatorCoordinate(ref_properties.number(p0[0], p1[0], t) / this.worldSize, ref_properties.number(p0[1], p1[1], t) / this.worldSize, ref_properties.number(z0, z1, t)); + } + pointCoordinate(p) { + const horizonOffset = this.horizonLineFromTop(false); + const clamped = new ref_properties.Point(p.x, Math.max(horizonOffset, p.y)); + return this.rayIntersectionCoordinate(this.pointRayIntersection(clamped)); + } + pointCoordinate3D(p) { + if (!this.elevation) + return this.pointCoordinate(p); + const elevation = this.elevation; + let raycast = this.elevation.pointCoordinate(p); + if (raycast) + return new ref_properties.MercatorCoordinate(raycast[0], raycast[1], raycast[2]); + let start = 0, end = this.horizonLineFromTop(); + if (p.y > end) + return this.pointCoordinate(p); + const samples = 10; + const threshold = 0.02 * end; + const r = p.clone(); + for (let i = 0; i < samples && end - start > threshold; i++) { + r.y = ref_properties.number(start, end, 0.66); + const rCast = elevation.pointCoordinate(r); + if (rCast) { + end = r.y; + raycast = rCast; + } else { + start = r.y; + } + } + return raycast ? new ref_properties.MercatorCoordinate(raycast[0], raycast[1], raycast[2]) : this.pointCoordinate(p); + } + isPointAboveHorizon(p) { + if (!this.elevation) { + const horizon = this.horizonLineFromTop(); + return p.y < horizon; + } else { + return !this.elevation.pointCoordinate(p); + } + } + _coordinatePoint(coord, sampleTerrainIn3D) { + const elevation = sampleTerrainIn3D && this.elevation ? this.elevation.getAtPoint(coord, this._centerAltitude) : this._centerAltitude; + const p = [ + coord.x * this.worldSize, + coord.y * this.worldSize, + elevation + coord.toAltitude(), + 1 + ]; + ref_properties.transformMat4(p, p, this.pixelMatrix); + return p[3] > 0 ? new ref_properties.Point(p[0] / p[3], p[1] / p[3]) : new ref_properties.Point(Number.MAX_VALUE, Number.MAX_VALUE); + } + getBounds() { + if (this._terrainEnabled()) + return this._getBounds3D(); + return new ref_properties.LngLatBounds().extend(this.pointLocation(new ref_properties.Point(0, 0))).extend(this.pointLocation(new ref_properties.Point(this.width, 0))).extend(this.pointLocation(new ref_properties.Point(this.width, this.height))).extend(this.pointLocation(new ref_properties.Point(0, this.height))); + } + _getBounds3D() { + const elevation = this.elevation; + const minmax = elevation.visibleDemTiles.reduce((acc, t) => { + if (t.dem) { + const tree = t.dem.tree; + acc.min = Math.min(acc.min, tree.minimums[0]); + acc.max = Math.max(acc.max, tree.maximums[0]); + } + return acc; + }, { + min: Number.MAX_VALUE, + max: 0 + }); + minmax.min *= elevation.exaggeration(); + minmax.max *= elevation.exaggeration(); + const top = this.horizonLineFromTop(); + return [ + new ref_properties.Point(0, top), + new ref_properties.Point(this.width, top), + new ref_properties.Point(this.width, this.height), + new ref_properties.Point(0, this.height) + ].reduce((acc, p) => { + return acc.extend(this.coordinateLocation(this.rayIntersectionCoordinate(this.pointRayIntersection(p, minmax.min)))).extend(this.coordinateLocation(this.rayIntersectionCoordinate(this.pointRayIntersection(p, minmax.max)))); + }, new ref_properties.LngLatBounds()); + } + horizonLineFromTop(clampToTop = true) { + const h = this.height / 2 / Math.tan(this._fov / 2) / Math.tan(Math.max(this._pitch, 0.1)) + this.centerOffset.y; + const horizonEpsilon = 0.03; + const offset = this.height / 2 - h * (1 - horizonEpsilon); + return clampToTop ? Math.max(0, offset) : offset; + } + getMaxBounds() { + if (!this.latRange || this.latRange.length !== 2 || !this.lngRange || this.lngRange.length !== 2) + return null; + return new ref_properties.LngLatBounds([ + this.lngRange[0], + this.latRange[0] + ], [ + this.lngRange[1], + this.latRange[1] + ]); + } + setMaxBounds(bounds) { + if (bounds) { + this.lngRange = [ + bounds.getWest(), + bounds.getEast() + ]; + this.latRange = [ + bounds.getSouth(), + bounds.getNorth() + ]; + this._constrain(); + } else { + this.lngRange = null; + this.latRange = [ + -this.maxValidLatitude, + this.maxValidLatitude + ]; + } + } + calculatePosMatrix(unwrappedTileID, aligned = false) { + const posMatrixKey = unwrappedTileID.key; + const cache = aligned ? this._alignedPosMatrixCache : this._posMatrixCache; + if (cache[posMatrixKey]) { + return cache[posMatrixKey]; + } + const canonical = unwrappedTileID.canonical; + const scale = this.worldSize / this.zoomScale(canonical.z); + const unwrappedX = canonical.x + Math.pow(2, canonical.z) * unwrappedTileID.wrap; + const posMatrix = ref_properties.identity(new Float64Array(16)); + ref_properties.translate(posMatrix, posMatrix, [ + unwrappedX * scale, + canonical.y * scale, + 0 + ]); + ref_properties.scale(posMatrix, posMatrix, [ + scale / ref_properties.EXTENT, + scale / ref_properties.EXTENT, + 1 + ]); + ref_properties.multiply(posMatrix, aligned ? this.alignedProjMatrix : this.projMatrix, posMatrix); + cache[posMatrixKey] = new Float32Array(posMatrix); + return cache[posMatrixKey]; + } + customLayerMatrix() { + return this.mercatorMatrix.slice(); + } + recenterOnTerrain() { + if (!this._elevation) + return; + const elevation = this._elevation; + this._updateCameraState(); + const start = this._camera.position; + const dir = this._camera.forward(); + if (start.z <= 0 || dir[2] >= 0) + return; + const metersToMerc = ref_properties.mercatorZfromAltitude(1, this._center.lat); + start[2] /= metersToMerc; + dir[2] /= metersToMerc; + ref_properties.normalize(dir, dir); + const t = elevation.raycast(start, dir, elevation.exaggeration()); + if (t) { + const point = ref_properties.scaleAndAdd([], start, dir, t); + const newCenter = new ref_properties.MercatorCoordinate(point[0], point[1], ref_properties.mercatorZfromAltitude(point[2], ref_properties.latFromMercatorY(point[1]))); + const pos = this._camera.position; + const camToNew = [ + newCenter.x - pos[0], + newCenter.y - pos[1], + newCenter.z - pos[2] + ]; + const maxAltitude = newCenter.z + ref_properties.length(camToNew); + this._cameraZoom = this._zoomFromMercatorZ(maxAltitude); + this._centerAltitude = newCenter.toAltitude(); + this._center = newCenter.toLngLat(); + this._updateZoomFromElevation(); + this._constrain(); + this._calcMatrices(); + } + } + _constrainCameraAltitude() { + if (!this._elevation) + return; + const elevation = this._elevation; + this._updateCameraState(); + const elevationAtCamera = elevation.getAtPoint(this._camera.mercatorPosition); + const minHeight = this._minimumHeightOverTerrain() * Math.cos(ref_properties.degToRad(this._maxPitch)); + const terrainElevation = ref_properties.mercatorZfromAltitude(elevationAtCamera, this._center.lat); + const cameraHeight = this._camera.position[2] - terrainElevation; + if (cameraHeight < minHeight) { + const center = ref_properties.MercatorCoordinate.fromLngLat(this._center, this._centerAltitude); + const cameraPos = this._camera.mercatorPosition; + const cameraToCenter = [ + center.x - cameraPos.x, + center.y - cameraPos.y, + center.z - cameraPos.z + ]; + const prevDistToCamera = ref_properties.length(cameraToCenter); + cameraToCenter[2] -= minHeight - cameraHeight; + const newDistToCamera = ref_properties.length(cameraToCenter); + if (newDistToCamera === 0) + return; + ref_properties.scale$2(cameraToCenter, cameraToCenter, prevDistToCamera / newDistToCamera); + this._camera.position = [ + center.x - cameraToCenter[0], + center.y - cameraToCenter[1], + center.z - cameraToCenter[2] + ]; + this._camera.orientation = orientationFromFrame(cameraToCenter, this._camera.up()); + this._updateStateFromCamera(); + } + } + _constrain() { + if (!this.center || !this.width || !this.height || this._constraining) + return; + this._constraining = true; + let minY = -90; + let maxY = 90; + let minX = -180; + let maxX = 180; + let sy, sx, x2, y2; + const size = this.size, unmodified = this._unmodified; + if (this.latRange) { + const latRange = this.latRange; + minY = ref_properties.mercatorYfromLat(latRange[1]) * this.worldSize; + maxY = ref_properties.mercatorYfromLat(latRange[0]) * this.worldSize; + sy = maxY - minY < size.y ? size.y / (maxY - minY) : 0; + } + if (this.lngRange) { + const lngRange = this.lngRange; + minX = ref_properties.mercatorXfromLng(lngRange[0]) * this.worldSize; + maxX = ref_properties.mercatorXfromLng(lngRange[1]) * this.worldSize; + sx = maxX - minX < size.x ? size.x / (maxX - minX) : 0; + } + const point = this.point; + const s = Math.max(sx || 0, sy || 0); + if (s) { + this.center = this.unproject(new ref_properties.Point(sx ? (maxX + minX) / 2 : point.x, sy ? (maxY + minY) / 2 : point.y)); + this.zoom += this.scaleZoom(s); + this._unmodified = unmodified; + this._constraining = false; + return; + } + if (this.latRange) { + const y = point.y, h2 = size.y / 2; + if (y - h2 < minY) + y2 = minY + h2; + if (y + h2 > maxY) + y2 = maxY - h2; + } + if (this.lngRange) { + const x = point.x, w2 = size.x / 2; + if (x - w2 < minX) + x2 = minX + w2; + if (x + w2 > maxX) + x2 = maxX - w2; + } + if (x2 !== undefined || y2 !== undefined) { + this.center = this.unproject(new ref_properties.Point(x2 !== undefined ? x2 : point.x, y2 !== undefined ? y2 : point.y)); + } + this._constrainCameraAltitude(); + this._unmodified = unmodified; + this._constraining = false; + } + _minZoomForBounds() { + const minZoomForDim = (dim, range) => { + return Math.log2(dim / (this.tileSize * Math.abs(range[1] - range[0]))); + }; + let minLatZoom = DEFAULT_MIN_ZOOM; + if (this.latRange) { + const latRange = this.latRange; + minLatZoom = minZoomForDim(this.height, [ + ref_properties.mercatorYfromLat(latRange[0]), + ref_properties.mercatorYfromLat(latRange[1]) + ]); + } + let minLngZoom = DEFAULT_MIN_ZOOM; + if (this.lngRange) { + const lngRange = this.lngRange; + minLngZoom = minZoomForDim(this.width, [ + ref_properties.mercatorXfromLng(lngRange[0]), + ref_properties.mercatorXfromLng(lngRange[1]) + ]); + } + return Math.max(minLatZoom, minLngZoom); + } + _maxCameraBoundsDistance() { + return this._mercatorZfromZoom(this._minZoomForBounds()); + } + _calcMatrices() { + if (!this.height) + return; + const halfFov = this._fov / 2; + const offset = this.centerOffset; + this.cameraToCenterDistance = 0.5 / Math.tan(halfFov) * this.height; + const pixelsPerMeter = ref_properties.mercatorZfromAltitude(1, this.center.lat) * this.worldSize; + this._updateCameraState(); + const groundAngle = Math.PI / 2 + this._pitch; + const fovAboveCenter = this.fovAboveCenter; + const cameraToSeaLevelDistance = this._camera.position[2] * this.worldSize / Math.cos(this._pitch); + const topHalfSurfaceDistance = Math.sin(fovAboveCenter) * cameraToSeaLevelDistance / Math.sin(ref_properties.clamp(Math.PI - groundAngle - fovAboveCenter, 0.01, Math.PI - 0.01)); + const point = this.point; + const x = point.x, y = point.y; + const furthestDistance = Math.cos(Math.PI / 2 - this._pitch) * topHalfSurfaceDistance + cameraToSeaLevelDistance; + const horizonDistance = cameraToSeaLevelDistance * (1 / this._horizonShift); + const farZ = Math.min(furthestDistance * 1.01, horizonDistance); + const nearZ = this.height / 50; + const worldToCamera = this._camera.getWorldToCamera(this.worldSize, pixelsPerMeter); + const cameraToClip = this._camera.getCameraToClipPerspective(this._fov, this.width / this.height, nearZ, farZ); + cameraToClip[8] = -offset.x * 2 / this.width; + cameraToClip[9] = offset.y * 2 / this.height; + let m = ref_properties.mul([], cameraToClip, worldToCamera); + this.mercatorMatrix = ref_properties.scale([], m, [ + this.worldSize, + this.worldSize, + this.worldSize / pixelsPerMeter + ]); + this.projMatrix = m; + this.invProjMatrix = ref_properties.invert(new Float64Array(16), this.projMatrix); + const view = new Float32Array(16); + ref_properties.identity(view); + ref_properties.scale(view, view, [ + 1, + -1, + 1 + ]); + ref_properties.rotateX(view, view, this._pitch); + ref_properties.rotateZ(view, view, this.angle); + const projection = ref_properties.perspective(new Float32Array(16), this._fov, this.width / this.height, nearZ, farZ); + const skyboxHorizonShift = (Math.PI / 2 - this._pitch) * (this.height / this._fov) * this._horizonShift; + projection[8] = -offset.x * 2 / this.width; + projection[9] = (offset.y + skyboxHorizonShift) * 2 / this.height; + this.skyboxMatrix = ref_properties.multiply(view, projection, view); + const xShift = this.width % 2 / 2, yShift = this.height % 2 / 2, angleCos = Math.cos(this.angle), angleSin = Math.sin(this.angle), dx = x - Math.round(x) + angleCos * xShift + angleSin * yShift, dy = y - Math.round(y) + angleCos * yShift + angleSin * xShift; + const alignedM = new Float64Array(m); + ref_properties.translate(alignedM, alignedM, [ + dx > 0.5 ? dx - 1 : dx, + dy > 0.5 ? dy - 1 : dy, + 0 + ]); + this.alignedProjMatrix = alignedM; + m = ref_properties.create(); + ref_properties.scale(m, m, [ + this.width / 2, + -this.height / 2, + 1 + ]); + ref_properties.translate(m, m, [ + 1, + -1, + 0 + ]); + this.labelPlaneMatrix = m; + m = ref_properties.create(); + ref_properties.scale(m, m, [ + 1, + -1, + 1 + ]); + ref_properties.translate(m, m, [ + -1, + -1, + 0 + ]); + ref_properties.scale(m, m, [ + 2 / this.width, + 2 / this.height, + 1 + ]); + this.glCoordMatrix = m; + this.pixelMatrix = ref_properties.multiply(new Float64Array(16), this.labelPlaneMatrix, this.projMatrix); + m = ref_properties.invert(new Float64Array(16), this.pixelMatrix); + if (!m) + throw new Error('failed to invert matrix'); + this.pixelMatrixInverse = m; + this._posMatrixCache = {}; + this._alignedPosMatrixCache = {}; + } + _updateCameraState() { + if (!this.height) + return; + this._camera.setPitchBearing(this._pitch, this.angle); + const dir = this._camera.forward(); + const distance = this.cameraToCenterDistance; + const center = this.point; + const zoom = this._cameraZoom ? this._cameraZoom : this._zoom; + const altitude = this._mercatorZfromZoom(zoom); + const height = altitude - ref_properties.mercatorZfromAltitude(this._centerAltitude, this.center.lat); + const updatedWorldSize = this.cameraToCenterDistance / height; + this._camera.position = [ + center.x / this.worldSize - dir[0] * distance / updatedWorldSize, + center.y / this.worldSize - dir[1] * distance / updatedWorldSize, + ref_properties.mercatorZfromAltitude(this._centerAltitude, this._center.lat) + -dir[2] * distance / updatedWorldSize + ]; + } + _translateCameraConstrained(translation) { + const maxDistance = this._maxCameraBoundsDistance(); + const maxZ = maxDistance * Math.cos(this._pitch); + const z = this._camera.position[2]; + const deltaZ = translation[2]; + let t = 1; + if (deltaZ > 0) { + t = Math.min((maxZ - z) / deltaZ, 1); + } + this._camera.position = ref_properties.scaleAndAdd([], this._camera.position, translation, t); + this._updateStateFromCamera(); + } + _updateStateFromCamera() { + const position = this._camera.position; + const dir = this._camera.forward(); + const {pitch, bearing} = this._camera.getPitchBearing(); + const centerAltitude = ref_properties.mercatorZfromAltitude(this._centerAltitude, this.center.lat); + const minHeight = this._mercatorZfromZoom(this._maxZoom) * Math.cos(ref_properties.degToRad(this._maxPitch)); + const height = Math.max((position[2] - centerAltitude) / Math.cos(pitch), minHeight); + const zoom = this._zoomFromMercatorZ(height); + ref_properties.scaleAndAdd(position, position, dir, height); + this._pitch = ref_properties.clamp(pitch, ref_properties.degToRad(this.minPitch), ref_properties.degToRad(this.maxPitch)); + this.angle = ref_properties.wrap(bearing, -Math.PI, Math.PI); + this._setZoom(ref_properties.clamp(zoom, this._minZoom, this._maxZoom)); + if (this._terrainEnabled()) + this._updateCameraOnTerrain(); + this._center = new ref_properties.MercatorCoordinate(position[0], position[1], position[2]).toLngLat(); + this._unmodified = false; + this._constrain(); + this._calcMatrices(); + } + _worldSizeFromZoom(zoom) { + return Math.pow(2, zoom) * this.tileSize; + } + _mercatorZfromZoom(zoom) { + return this.cameraToCenterDistance / this._worldSizeFromZoom(zoom); + } + _minimumHeightOverTerrain() { + const MAX_DRAPE_OVERZOOM = 2; + const zoom = Math.min((this._cameraZoom != null ? this._cameraZoom : this._zoom) + MAX_DRAPE_OVERZOOM, this._maxZoom); + return this._mercatorZfromZoom(zoom); + } + _zoomFromMercatorZ(z) { + return this.scaleZoom(this.cameraToCenterDistance / (z * this.tileSize)); + } + _terrainEnabled() { + return !!this._elevation; + } + isHorizonVisibleForPoints(p0, p1) { + const minX = Math.min(p0.x, p1.x); + const maxX = Math.max(p0.x, p1.x); + const minY = Math.min(p0.y, p1.y); + const maxY = Math.max(p0.y, p1.y); + const min = new ref_properties.Point(minX, minY); + const max = new ref_properties.Point(maxX, maxY); + const corners = [ + min, + max, + new ref_properties.Point(minX, maxY), + new ref_properties.Point(maxX, minY) + ]; + const minWX = this._renderWorldCopies ? -NUM_WORLD_COPIES : 0; + const maxWX = this._renderWorldCopies ? 1 + NUM_WORLD_COPIES : 1; + const minWY = 0; + const maxWY = 1; + for (const corner of corners) { + const rayIntersection = this.pointRayIntersection(corner); + if (rayIntersection.t < 0) { + return true; + } + const coordinate = this.rayIntersectionCoordinate(rayIntersection); + if (coordinate.x < minWX || coordinate.y < minWY || coordinate.x > maxWX || coordinate.y > maxWY) { + return true; + } + } + return false; + } + isHorizonVisible() { + const horizonAngleEpsilon = 2; + if (this.pitch + ref_properties.radToDeg(this.fovAboveCenter) > 90 - horizonAngleEpsilon) { + return true; + } + return this.isHorizonVisibleForPoints(new ref_properties.Point(0, 0), new ref_properties.Point(this.width, this.height)); + } + zoomDeltaToMovement(center, zoomDelta) { + const distance = ref_properties.length(ref_properties.sub([], this._camera.position, center)); + const relativeZoom = this._zoomFromMercatorZ(distance) + zoomDelta; + return distance - this._mercatorZfromZoom(relativeZoom); + } + getCameraPoint() { + const pitch = this._pitch; + const yOffset = Math.tan(pitch) * (this.cameraToCenterDistance || 1); + return this.centerPoint.add(new ref_properties.Point(0, yOffset)); + } +} + +function throttle(fn, time) { + let pending = false; + let timerId = null; + const later = () => { + timerId = null; + if (pending) { + fn(); + timerId = setTimeout(later, time); + pending = false; + } + }; + return () => { + pending = true; + if (!timerId) { + later(); + } + return timerId; + }; +} + +class Hash { + constructor(hashName) { + this._hashName = hashName && encodeURIComponent(hashName); + ref_properties.bindAll([ + '_getCurrentHash', + '_onHashChange', + '_updateHash' + ], this); + this._updateHash = throttle(this._updateHashUnthrottled.bind(this), 30 * 1000 / 100); + } + addTo(map) { + this._map = map; + ref_properties.window.addEventListener('hashchange', this._onHashChange, false); + this._map.on('moveend', this._updateHash); + return this; + } + remove() { + ref_properties.window.removeEventListener('hashchange', this._onHashChange, false); + this._map.off('moveend', this._updateHash); + clearTimeout(this._updateHash()); + delete this._map; + return this; + } + getHashString(mapFeedback) { + const center = this._map.getCenter(), zoom = Math.round(this._map.getZoom() * 100) / 100, precision = Math.ceil((zoom * Math.LN2 + Math.log(512 / 360 / 0.5)) / Math.LN10), m = Math.pow(10, precision), lng = Math.round(center.lng * m) / m, lat = Math.round(center.lat * m) / m, bearing = this._map.getBearing(), pitch = this._map.getPitch(); + let hash = ''; + if (mapFeedback) { + hash += `/${ lng }/${ lat }/${ zoom }`; + } else { + hash += `${ zoom }/${ lat }/${ lng }`; + } + if (bearing || pitch) + hash += `/${ Math.round(bearing * 10) / 10 }`; + if (pitch) + hash += `/${ Math.round(pitch) }`; + if (this._hashName) { + const hashName = this._hashName; + let found = false; + const parts = ref_properties.window.location.hash.slice(1).split('&').map(part => { + const key = part.split('=')[0]; + if (key === hashName) { + found = true; + return `${ key }=${ hash }`; + } + return part; + }).filter(a => a); + if (!found) { + parts.push(`${ hashName }=${ hash }`); + } + return `#${ parts.join('&') }`; + } + return `#${ hash }`; + } + _getCurrentHash() { + const hash = ref_properties.window.location.hash.replace('#', ''); + if (this._hashName) { + let keyval; + hash.split('&').map(part => part.split('=')).forEach(part => { + if (part[0] === this._hashName) { + keyval = part; + } + }); + return (keyval ? keyval[1] || '' : '').split('/'); + } + return hash.split('/'); + } + _onHashChange() { + const loc = this._getCurrentHash(); + if (loc.length >= 3 && !loc.some(v => isNaN(v))) { + const bearing = this._map.dragRotate.isEnabled() && this._map.touchZoomRotate.isEnabled() ? +(loc[3] || 0) : this._map.getBearing(); + this._map.jumpTo({ + center: [ + +loc[2], + +loc[1] + ], + zoom: +loc[0], + bearing, + pitch: +(loc[4] || 0) + }); + return true; + } + return false; + } + _updateHashUnthrottled() { + const location = ref_properties.window.location.href.replace(/(#.+)?$/, this.getHashString()); + ref_properties.window.history.replaceState(ref_properties.window.history.state, null, location); + } +} + +const defaultInertiaOptions = { + linearity: 0.3, + easing: ref_properties.bezier(0, 0, 0.3, 1) +}; +const defaultPanInertiaOptions = ref_properties.extend({ + deceleration: 2500, + maxSpeed: 1400 +}, defaultInertiaOptions); +const defaultZoomInertiaOptions = ref_properties.extend({ + deceleration: 20, + maxSpeed: 1400 +}, defaultInertiaOptions); +const defaultBearingInertiaOptions = ref_properties.extend({ + deceleration: 1000, + maxSpeed: 360 +}, defaultInertiaOptions); +const defaultPitchInertiaOptions = ref_properties.extend({ + deceleration: 1000, + maxSpeed: 90 +}, defaultInertiaOptions); +class HandlerInertia { + constructor(map) { + this._map = map; + this.clear(); + } + clear() { + this._inertiaBuffer = []; + } + record(settings) { + this._drainInertiaBuffer(); + this._inertiaBuffer.push({ + time: ref_properties.browser.now(), + settings + }); + } + _drainInertiaBuffer() { + const inertia = this._inertiaBuffer, now = ref_properties.browser.now(), cutoff = 160; + while (inertia.length > 0 && now - inertia[0].time > cutoff) + inertia.shift(); + } + _onMoveEnd(panInertiaOptions) { + this._drainInertiaBuffer(); + if (this._inertiaBuffer.length < 2) { + return; + } + const deltas = { + zoom: 0, + bearing: 0, + pitch: 0, + pan: new ref_properties.Point(0, 0), + pinchAround: undefined, + around: undefined + }; + for (const {settings} of this._inertiaBuffer) { + deltas.zoom += settings.zoomDelta || 0; + deltas.bearing += settings.bearingDelta || 0; + deltas.pitch += settings.pitchDelta || 0; + if (settings.panDelta) + deltas.pan._add(settings.panDelta); + if (settings.around) + deltas.around = settings.around; + if (settings.pinchAround) + deltas.pinchAround = settings.pinchAround; + } + const lastEntry = this._inertiaBuffer[this._inertiaBuffer.length - 1]; + const duration = lastEntry.time - this._inertiaBuffer[0].time; + const easeOptions = {}; + if (deltas.pan.mag()) { + const result = calculateEasing(deltas.pan.mag(), duration, ref_properties.extend({}, defaultPanInertiaOptions, panInertiaOptions || {})); + easeOptions.offset = deltas.pan.mult(result.amount / deltas.pan.mag()); + easeOptions.center = this._map.transform.center; + extendDuration(easeOptions, result); + } + if (deltas.zoom) { + const result = calculateEasing(deltas.zoom, duration, defaultZoomInertiaOptions); + easeOptions.zoom = this._map.transform.zoom + result.amount; + extendDuration(easeOptions, result); + } + if (deltas.bearing) { + const result = calculateEasing(deltas.bearing, duration, defaultBearingInertiaOptions); + easeOptions.bearing = this._map.transform.bearing + ref_properties.clamp(result.amount, -179, 179); + extendDuration(easeOptions, result); + } + if (deltas.pitch) { + const result = calculateEasing(deltas.pitch, duration, defaultPitchInertiaOptions); + easeOptions.pitch = this._map.transform.pitch + result.amount; + extendDuration(easeOptions, result); + } + if (easeOptions.zoom || easeOptions.bearing) { + const last = deltas.pinchAround === undefined ? deltas.around : deltas.pinchAround; + easeOptions.around = last ? this._map.unproject(last) : this._map.getCenter(); + } + this.clear(); + return ref_properties.extend(easeOptions, { noMoveStart: true }); + } +} +function extendDuration(easeOptions, result) { + if (!easeOptions.duration || easeOptions.duration < result.duration) { + easeOptions.duration = result.duration; + easeOptions.easing = result.easing; + } +} +function calculateEasing(amount, inertiaDuration, inertiaOptions) { + const {maxSpeed, linearity, deceleration} = inertiaOptions; + const speed = ref_properties.clamp(amount * linearity / (inertiaDuration / 1000), -maxSpeed, maxSpeed); + const duration = Math.abs(speed) / (deceleration * linearity); + return { + easing: inertiaOptions.easing, + duration: duration * 1000, + amount: speed * (duration / 2) + }; +} + +class MapMouseEvent extends ref_properties.Event { + preventDefault() { + this._defaultPrevented = true; + } + get defaultPrevented() { + return this._defaultPrevented; + } + constructor(type, map, originalEvent, data = {}) { + const point = DOM.mousePos(map.getCanvasContainer(), originalEvent); + const lngLat = map.unproject(point); + super(type, ref_properties.extend({ + point, + lngLat, + originalEvent + }, data)); + this._defaultPrevented = false; + this.target = map; + } +} +class MapTouchEvent extends ref_properties.Event { + preventDefault() { + this._defaultPrevented = true; + } + get defaultPrevented() { + return this._defaultPrevented; + } + constructor(type, map, originalEvent) { + const touches = type === 'touchend' ? originalEvent.changedTouches : originalEvent.touches; + const points = DOM.touchPos(map.getCanvasContainer(), touches); + const lngLats = points.map(t => map.unproject(t)); + const point = points.reduce((prev, curr, i, arr) => { + return prev.add(curr.div(arr.length)); + }, new ref_properties.Point(0, 0)); + const lngLat = map.unproject(point); + super(type, { + points, + point, + lngLats, + lngLat, + originalEvent + }); + this._defaultPrevented = false; + } +} +class MapWheelEvent extends ref_properties.Event { + preventDefault() { + this._defaultPrevented = true; + } + get defaultPrevented() { + return this._defaultPrevented; + } + constructor(type, map, originalEvent) { + super(type, { originalEvent }); + this._defaultPrevented = false; + } +} + +class MapEventHandler { + constructor(map, options) { + this._map = map; + this._clickTolerance = options.clickTolerance; + } + reset() { + delete this._mousedownPos; + } + wheel(e) { + return this._firePreventable(new MapWheelEvent(e.type, this._map, e)); + } + mousedown(e, point) { + this._mousedownPos = point; + return this._firePreventable(new MapMouseEvent(e.type, this._map, e)); + } + mouseup(e) { + this._map.fire(new MapMouseEvent(e.type, this._map, e)); + } + click(e, point) { + if (this._mousedownPos && this._mousedownPos.dist(point) >= this._clickTolerance) + return; + this._map.fire(new MapMouseEvent(e.type, this._map, e)); + } + dblclick(e) { + return this._firePreventable(new MapMouseEvent(e.type, this._map, e)); + } + mouseover(e) { + this._map.fire(new MapMouseEvent(e.type, this._map, e)); + } + mouseout(e) { + this._map.fire(new MapMouseEvent(e.type, this._map, e)); + } + touchstart(e) { + return this._firePreventable(new MapTouchEvent(e.type, this._map, e)); + } + touchmove(e) { + this._map.fire(new MapTouchEvent(e.type, this._map, e)); + } + touchend(e) { + this._map.fire(new MapTouchEvent(e.type, this._map, e)); + } + touchcancel(e) { + this._map.fire(new MapTouchEvent(e.type, this._map, e)); + } + _firePreventable(mapEvent) { + this._map.fire(mapEvent); + if (mapEvent.defaultPrevented) { + return {}; + } + } + isEnabled() { + return true; + } + isActive() { + return false; + } + enable() { + } + disable() { + } +} +class BlockableMapEventHandler { + constructor(map) { + this._map = map; + } + reset() { + this._delayContextMenu = false; + delete this._contextMenuEvent; + } + mousemove(e) { + this._map.fire(new MapMouseEvent(e.type, this._map, e)); + } + mousedown() { + this._delayContextMenu = true; + } + mouseup() { + this._delayContextMenu = false; + if (this._contextMenuEvent) { + this._map.fire(new MapMouseEvent('contextmenu', this._map, this._contextMenuEvent)); + delete this._contextMenuEvent; + } + } + contextmenu(e) { + if (this._delayContextMenu) { + this._contextMenuEvent = e; + } else { + this._map.fire(new MapMouseEvent(e.type, this._map, e)); + } + if (this._map.listens('contextmenu')) { + e.preventDefault(); + } + } + isEnabled() { + return true; + } + isActive() { + return false; + } + enable() { + } + disable() { + } +} + +class BoxZoomHandler { + constructor(map, options) { + this._map = map; + this._el = map.getCanvasContainer(); + this._container = map.getContainer(); + this._clickTolerance = options.clickTolerance || 1; + } + isEnabled() { + return !!this._enabled; + } + isActive() { + return !!this._active; + } + enable() { + if (this.isEnabled()) + return; + this._enabled = true; + } + disable() { + if (!this.isEnabled()) + return; + this._enabled = false; + } + mousedown(e, point) { + if (!this.isEnabled()) + return; + if (!(e.shiftKey && e.button === 0)) + return; + DOM.disableDrag(); + this._startPos = this._lastPos = point; + this._active = true; + } + mousemoveWindow(e, point) { + if (!this._active) + return; + const pos = point; + if (this._lastPos.equals(pos) || !this._box && pos.dist(this._startPos) < this._clickTolerance) { + return; + } + const p0 = this._startPos; + this._lastPos = pos; + if (!this._box) { + this._box = DOM.create('div', 'mapboxgl-boxzoom', this._container); + this._container.classList.add('mapboxgl-crosshair'); + this._fireEvent('boxzoomstart', e); + } + const minX = Math.min(p0.x, pos.x), maxX = Math.max(p0.x, pos.x), minY = Math.min(p0.y, pos.y), maxY = Math.max(p0.y, pos.y); + DOM.setTransform(this._box, `translate(${ minX }px,${ minY }px)`); + this._box.style.width = `${ maxX - minX }px`; + this._box.style.height = `${ maxY - minY }px`; + } + mouseupWindow(e, point) { + if (!this._active) + return; + if (e.button !== 0) + return; + const p0 = this._startPos, p1 = point; + this.reset(); + DOM.suppressClick(); + if (p0.x === p1.x && p0.y === p1.y) { + this._fireEvent('boxzoomcancel', e); + } else { + this._map.fire(new ref_properties.Event('boxzoomend', { originalEvent: e })); + return { cameraAnimation: map => map.fitScreenCoordinates(p0, p1, this._map.getBearing(), { linear: false }) }; + } + } + keydown(e) { + if (!this._active) + return; + if (e.keyCode === 27) { + this.reset(); + this._fireEvent('boxzoomcancel', e); + } + } + reset() { + this._active = false; + this._container.classList.remove('mapboxgl-crosshair'); + if (this._box) { + DOM.remove(this._box); + this._box = null; + } + DOM.enableDrag(); + delete this._startPos; + delete this._lastPos; + } + _fireEvent(type, e) { + return this._map.fire(new ref_properties.Event(type, { originalEvent: e })); + } +} + +function indexTouches(touches, points) { + const obj = {}; + for (let i = 0; i < touches.length; i++) { + obj[touches[i].identifier] = points[i]; + } + return obj; +} + +function getCentroid(points) { + const sum = new ref_properties.Point(0, 0); + for (const point of points) { + sum._add(point); + } + return sum.div(points.length); +} +const MAX_TAP_INTERVAL = 500; +const MAX_TOUCH_TIME = 500; +const MAX_DIST = 30; +class SingleTapRecognizer { + constructor(options) { + this.reset(); + this.numTouches = options.numTouches; + } + reset() { + delete this.centroid; + delete this.startTime; + delete this.touches; + this.aborted = false; + } + touchstart(e, points, mapTouches) { + if (this.centroid || mapTouches.length > this.numTouches) { + this.aborted = true; + } + if (this.aborted) { + return; + } + if (this.startTime === undefined) { + this.startTime = e.timeStamp; + } + if (mapTouches.length === this.numTouches) { + this.centroid = getCentroid(points); + this.touches = indexTouches(mapTouches, points); + } + } + touchmove(e, points, mapTouches) { + if (this.aborted || !this.centroid) + return; + const newTouches = indexTouches(mapTouches, points); + for (const id in this.touches) { + const prevPos = this.touches[id]; + const pos = newTouches[id]; + if (!pos || pos.dist(prevPos) > MAX_DIST) { + this.aborted = true; + } + } + } + touchend(e, points, mapTouches) { + if (!this.centroid || e.timeStamp - this.startTime > MAX_TOUCH_TIME) { + this.aborted = true; + } + if (mapTouches.length === 0) { + const centroid = !this.aborted && this.centroid; + this.reset(); + if (centroid) + return centroid; + } + } +} +class TapRecognizer { + constructor(options) { + this.singleTap = new SingleTapRecognizer(options); + this.numTaps = options.numTaps; + this.reset(); + } + reset() { + this.lastTime = Infinity; + delete this.lastTap; + this.count = 0; + this.singleTap.reset(); + } + touchstart(e, points, mapTouches) { + this.singleTap.touchstart(e, points, mapTouches); + } + touchmove(e, points, mapTouches) { + this.singleTap.touchmove(e, points, mapTouches); + } + touchend(e, points, mapTouches) { + const tap = this.singleTap.touchend(e, points, mapTouches); + if (tap) { + const soonEnough = e.timeStamp - this.lastTime < MAX_TAP_INTERVAL; + const closeEnough = !this.lastTap || this.lastTap.dist(tap) < MAX_DIST; + if (!soonEnough || !closeEnough) { + this.reset(); + } + this.count++; + this.lastTime = e.timeStamp; + this.lastTap = tap; + if (this.count === this.numTaps) { + this.reset(); + return tap; + } + } + } +} + +class TapZoomHandler { + constructor() { + this._zoomIn = new TapRecognizer({ + numTouches: 1, + numTaps: 2 + }); + this._zoomOut = new TapRecognizer({ + numTouches: 2, + numTaps: 1 + }); + this.reset(); + } + reset() { + this._active = false; + this._zoomIn.reset(); + this._zoomOut.reset(); + } + touchstart(e, points, mapTouches) { + this._zoomIn.touchstart(e, points, mapTouches); + this._zoomOut.touchstart(e, points, mapTouches); + } + touchmove(e, points, mapTouches) { + this._zoomIn.touchmove(e, points, mapTouches); + this._zoomOut.touchmove(e, points, mapTouches); + } + touchend(e, points, mapTouches) { + const zoomInPoint = this._zoomIn.touchend(e, points, mapTouches); + const zoomOutPoint = this._zoomOut.touchend(e, points, mapTouches); + if (zoomInPoint) { + this._active = true; + e.preventDefault(); + setTimeout(() => this.reset(), 0); + return { + cameraAnimation: map => map.easeTo({ + duration: 300, + zoom: map.getZoom() + 1, + around: map.unproject(zoomInPoint) + }, { originalEvent: e }) + }; + } else if (zoomOutPoint) { + this._active = true; + e.preventDefault(); + setTimeout(() => this.reset(), 0); + return { + cameraAnimation: map => map.easeTo({ + duration: 300, + zoom: map.getZoom() - 1, + around: map.unproject(zoomOutPoint) + }, { originalEvent: e }) + }; + } + } + touchcancel() { + this.reset(); + } + enable() { + this._enabled = true; + } + disable() { + this._enabled = false; + this.reset(); + } + isEnabled() { + return this._enabled; + } + isActive() { + return this._active; + } +} + +const LEFT_BUTTON = 0; +const RIGHT_BUTTON = 2; +const BUTTONS_FLAGS = { + [LEFT_BUTTON]: 1, + [RIGHT_BUTTON]: 2 +}; +function buttonStillPressed(e, button) { + const flag = BUTTONS_FLAGS[button]; + return e.buttons === undefined || (e.buttons & flag) !== flag; +} +class MouseHandler { + constructor(options) { + this.reset(); + this._clickTolerance = options.clickTolerance || 1; + } + reset() { + this._active = false; + this._moved = false; + delete this._lastPoint; + delete this._eventButton; + } + _correctButton(e, button) { + return false; + } + _move(lastPoint, point) { + return {}; + } + mousedown(e, point) { + if (this._lastPoint) + return; + const eventButton = DOM.mouseButton(e); + if (!this._correctButton(e, eventButton)) + return; + this._lastPoint = point; + this._eventButton = eventButton; + } + mousemoveWindow(e, point) { + const lastPoint = this._lastPoint; + if (!lastPoint) + return; + e.preventDefault(); + if (buttonStillPressed(e, this._eventButton)) { + this.reset(); + return; + } + if (!this._moved && point.dist(lastPoint) < this._clickTolerance) + return; + this._moved = true; + this._lastPoint = point; + return this._move(lastPoint, point); + } + mouseupWindow(e) { + if (!this._lastPoint) + return; + const eventButton = DOM.mouseButton(e); + if (eventButton !== this._eventButton) + return; + if (this._moved) + DOM.suppressClick(); + this.reset(); + } + enable() { + this._enabled = true; + } + disable() { + this._enabled = false; + this.reset(); + } + isEnabled() { + return this._enabled; + } + isActive() { + return this._active; + } +} +class MousePanHandler extends MouseHandler { + mousedown(e, point) { + super.mousedown(e, point); + if (this._lastPoint) + this._active = true; + } + _correctButton(e, button) { + return button === LEFT_BUTTON && !e.ctrlKey; + } + _move(lastPoint, point) { + return { + around: point, + panDelta: point.sub(lastPoint) + }; + } +} +class MouseRotateHandler extends MouseHandler { + _correctButton(e, button) { + return button === LEFT_BUTTON && e.ctrlKey || button === RIGHT_BUTTON; + } + _move(lastPoint, point) { + const degreesPerPixelMoved = 0.8; + const bearingDelta = (point.x - lastPoint.x) * degreesPerPixelMoved; + if (bearingDelta) { + this._active = true; + return { bearingDelta }; + } + } + contextmenu(e) { + e.preventDefault(); + } +} +class MousePitchHandler extends MouseHandler { + _correctButton(e, button) { + return button === LEFT_BUTTON && e.ctrlKey || button === RIGHT_BUTTON; + } + _move(lastPoint, point) { + const degreesPerPixelMoved = -0.5; + const pitchDelta = (point.y - lastPoint.y) * degreesPerPixelMoved; + if (pitchDelta) { + this._active = true; + return { pitchDelta }; + } + } + contextmenu(e) { + e.preventDefault(); + } +} + +class TouchPanHandler { + constructor(options) { + this._minTouches = 1; + this._clickTolerance = options.clickTolerance || 1; + this.reset(); + } + reset() { + this._active = false; + this._touches = {}; + this._sum = new ref_properties.Point(0, 0); + } + touchstart(e, points, mapTouches) { + return this._calculateTransform(e, points, mapTouches); + } + touchmove(e, points, mapTouches) { + if (!this._active || mapTouches.length < this._minTouches) + return; + e.preventDefault(); + return this._calculateTransform(e, points, mapTouches); + } + touchend(e, points, mapTouches) { + this._calculateTransform(e, points, mapTouches); + if (this._active && mapTouches.length < this._minTouches) { + this.reset(); + } + } + touchcancel() { + this.reset(); + } + _calculateTransform(e, points, mapTouches) { + if (mapTouches.length > 0) + this._active = true; + const touches = indexTouches(mapTouches, points); + const touchPointSum = new ref_properties.Point(0, 0); + const touchDeltaSum = new ref_properties.Point(0, 0); + let touchDeltaCount = 0; + for (const identifier in touches) { + const point = touches[identifier]; + const prevPoint = this._touches[identifier]; + if (prevPoint) { + touchPointSum._add(point); + touchDeltaSum._add(point.sub(prevPoint)); + touchDeltaCount++; + touches[identifier] = point; + } + } + this._touches = touches; + if (touchDeltaCount < this._minTouches || !touchDeltaSum.mag()) + return; + const panDelta = touchDeltaSum.div(touchDeltaCount); + this._sum._add(panDelta); + if (this._sum.mag() < this._clickTolerance) + return; + const around = touchPointSum.div(touchDeltaCount); + return { + around, + panDelta + }; + } + enable() { + this._enabled = true; + } + disable() { + this._enabled = false; + this.reset(); + } + isEnabled() { + return this._enabled; + } + isActive() { + return this._active; + } +} + +class TwoTouchHandler { + constructor() { + this.reset(); + } + reset() { + this._active = false; + delete this._firstTwoTouches; + } + _start(points) { + } + _move(points, pinchAround, e) { + return {}; + } + touchstart(e, points, mapTouches) { + if (this._firstTwoTouches || mapTouches.length < 2) + return; + this._firstTwoTouches = [ + mapTouches[0].identifier, + mapTouches[1].identifier + ]; + this._start([ + points[0], + points[1] + ]); + } + touchmove(e, points, mapTouches) { + if (!this._firstTwoTouches) + return; + e.preventDefault(); + const [idA, idB] = this._firstTwoTouches; + const a = getTouchById(mapTouches, points, idA); + const b = getTouchById(mapTouches, points, idB); + if (!a || !b) + return; + const pinchAround = this._aroundCenter ? null : a.add(b).div(2); + return this._move([ + a, + b + ], pinchAround, e); + } + touchend(e, points, mapTouches) { + if (!this._firstTwoTouches) + return; + const [idA, idB] = this._firstTwoTouches; + const a = getTouchById(mapTouches, points, idA); + const b = getTouchById(mapTouches, points, idB); + if (a && b) + return; + if (this._active) + DOM.suppressClick(); + this.reset(); + } + touchcancel() { + this.reset(); + } + enable(options) { + this._enabled = true; + this._aroundCenter = !!options && options.around === 'center'; + } + disable() { + this._enabled = false; + this.reset(); + } + isEnabled() { + return this._enabled; + } + isActive() { + return this._active; + } +} +function getTouchById(mapTouches, points, identifier) { + for (let i = 0; i < mapTouches.length; i++) { + if (mapTouches[i].identifier === identifier) + return points[i]; + } +} +const ZOOM_THRESHOLD = 0.1; +function getZoomDelta(distance, lastDistance) { + return Math.log(distance / lastDistance) / Math.LN2; +} +class TouchZoomHandler extends TwoTouchHandler { + reset() { + super.reset(); + delete this._distance; + delete this._startDistance; + } + _start(points) { + this._startDistance = this._distance = points[0].dist(points[1]); + } + _move(points, pinchAround) { + const lastDistance = this._distance; + this._distance = points[0].dist(points[1]); + if (!this._active && Math.abs(getZoomDelta(this._distance, this._startDistance)) < ZOOM_THRESHOLD) + return; + this._active = true; + return { + zoomDelta: getZoomDelta(this._distance, lastDistance), + pinchAround + }; + } +} +const ROTATION_THRESHOLD = 25; +function getBearingDelta(a, b) { + return a.angleWith(b) * 180 / Math.PI; +} +class TouchRotateHandler extends TwoTouchHandler { + reset() { + super.reset(); + delete this._minDiameter; + delete this._startVector; + delete this._vector; + } + _start(points) { + this._startVector = this._vector = points[0].sub(points[1]); + this._minDiameter = points[0].dist(points[1]); + } + _move(points, pinchAround) { + const lastVector = this._vector; + this._vector = points[0].sub(points[1]); + if (!this._active && this._isBelowThreshold(this._vector)) + return; + this._active = true; + return { + bearingDelta: getBearingDelta(this._vector, lastVector), + pinchAround + }; + } + _isBelowThreshold(vector) { + this._minDiameter = Math.min(this._minDiameter, vector.mag()); + const circumference = Math.PI * this._minDiameter; + const threshold = ROTATION_THRESHOLD / circumference * 360; + const bearingDeltaSinceStart = getBearingDelta(vector, this._startVector); + return Math.abs(bearingDeltaSinceStart) < threshold; + } +} +function isVertical(vector) { + return Math.abs(vector.y) > Math.abs(vector.x); +} +const ALLOWED_SINGLE_TOUCH_TIME = 100; +class TouchPitchHandler extends TwoTouchHandler { + reset() { + super.reset(); + this._valid = undefined; + delete this._firstMove; + delete this._lastPoints; + } + _start(points) { + this._lastPoints = points; + if (isVertical(points[0].sub(points[1]))) { + this._valid = false; + } + } + _move(points, center, e) { + const vectorA = points[0].sub(this._lastPoints[0]); + const vectorB = points[1].sub(this._lastPoints[1]); + this._valid = this.gestureBeginsVertically(vectorA, vectorB, e.timeStamp); + if (!this._valid) + return; + this._lastPoints = points; + this._active = true; + const yDeltaAverage = (vectorA.y + vectorB.y) / 2; + const degreesPerPixelMoved = -0.5; + return { pitchDelta: yDeltaAverage * degreesPerPixelMoved }; + } + gestureBeginsVertically(vectorA, vectorB, timeStamp) { + if (this._valid !== undefined) + return this._valid; + const threshold = 2; + const movedA = vectorA.mag() >= threshold; + const movedB = vectorB.mag() >= threshold; + if (!movedA && !movedB) + return; + if (!movedA || !movedB) { + if (this._firstMove === undefined) { + this._firstMove = timeStamp; + } + if (timeStamp - this._firstMove < ALLOWED_SINGLE_TOUCH_TIME) { + return undefined; + } else { + return false; + } + } + const isSameDirection = vectorA.y > 0 === vectorB.y > 0; + return isVertical(vectorA) && isVertical(vectorB) && isSameDirection; + } +} + +const defaultOptions = { + panStep: 100, + bearingStep: 15, + pitchStep: 10 +}; +class KeyboardHandler { + constructor() { + const stepOptions = defaultOptions; + this._panStep = stepOptions.panStep; + this._bearingStep = stepOptions.bearingStep; + this._pitchStep = stepOptions.pitchStep; + this._rotationDisabled = false; + } + reset() { + this._active = false; + } + keydown(e) { + if (e.altKey || e.ctrlKey || e.metaKey) + return; + let zoomDir = 0; + let bearingDir = 0; + let pitchDir = 0; + let xDir = 0; + let yDir = 0; + switch (e.keyCode) { + case 61: + case 107: + case 171: + case 187: + zoomDir = 1; + break; + case 189: + case 109: + case 173: + zoomDir = -1; + break; + case 37: + if (e.shiftKey) { + bearingDir = -1; + } else { + e.preventDefault(); + xDir = -1; + } + break; + case 39: + if (e.shiftKey) { + bearingDir = 1; + } else { + e.preventDefault(); + xDir = 1; + } + break; + case 38: + if (e.shiftKey) { + pitchDir = 1; + } else { + e.preventDefault(); + yDir = -1; + } + break; + case 40: + if (e.shiftKey) { + pitchDir = -1; + } else { + e.preventDefault(); + yDir = 1; + } + break; + default: + return; + } + if (this._rotationDisabled) { + bearingDir = 0; + pitchDir = 0; + } + return { + cameraAnimation: map => { + const zoom = map.getZoom(); + map.easeTo({ + duration: 300, + easeId: 'keyboardHandler', + easing: easeOut, + zoom: zoomDir ? Math.round(zoom) + zoomDir * (e.shiftKey ? 2 : 1) : zoom, + bearing: map.getBearing() + bearingDir * this._bearingStep, + pitch: map.getPitch() + pitchDir * this._pitchStep, + offset: [ + -xDir * this._panStep, + -yDir * this._panStep + ], + center: map.getCenter() + }, { originalEvent: e }); + } + }; + } + enable() { + this._enabled = true; + } + disable() { + this._enabled = false; + this.reset(); + } + isEnabled() { + return this._enabled; + } + isActive() { + return this._active; + } + disableRotation() { + this._rotationDisabled = true; + } + enableRotation() { + this._rotationDisabled = false; + } +} +function easeOut(t) { + return t * (2 - t); +} + +const wheelZoomDelta = 4.000244140625; +const defaultZoomRate = 1 / 100; +const wheelZoomRate = 1 / 450; +const maxScalePerFrame = 2; +class ScrollZoomHandler { + constructor(map, handler) { + this._map = map; + this._el = map.getCanvasContainer(); + this._handler = handler; + this._delta = 0; + this._defaultZoomRate = defaultZoomRate; + this._wheelZoomRate = wheelZoomRate; + ref_properties.bindAll(['_onTimeout'], this); + } + setZoomRate(zoomRate) { + this._defaultZoomRate = zoomRate; + } + setWheelZoomRate(wheelZoomRate) { + this._wheelZoomRate = wheelZoomRate; + } + isEnabled() { + return !!this._enabled; + } + isActive() { + return !!this._active || this._finishTimeout !== undefined; + } + isZooming() { + return !!this._zooming; + } + enable(options) { + if (this.isEnabled()) + return; + this._enabled = true; + this._aroundCenter = options && options.around === 'center'; + } + disable() { + if (!this.isEnabled()) + return; + this._enabled = false; + } + wheel(e) { + if (!this.isEnabled()) + return; + let value = e.deltaMode === ref_properties.window.WheelEvent.DOM_DELTA_LINE ? e.deltaY * 40 : e.deltaY; + const now = ref_properties.browser.now(), timeDelta = now - (this._lastWheelEventTime || 0); + this._lastWheelEventTime = now; + if (value !== 0 && value % wheelZoomDelta === 0) { + this._type = 'wheel'; + } else if (value !== 0 && Math.abs(value) < 4) { + this._type = 'trackpad'; + } else if (timeDelta > 400) { + this._type = null; + this._lastValue = value; + this._timeout = setTimeout(this._onTimeout, 40, e); + } else if (!this._type) { + this._type = Math.abs(timeDelta * value) < 200 ? 'trackpad' : 'wheel'; + if (this._timeout) { + clearTimeout(this._timeout); + this._timeout = null; + value += this._lastValue; + } + } + if (e.shiftKey && value) + value = value / 4; + if (this._type) { + this._lastWheelEvent = e; + this._delta -= value; + if (!this._active) { + this._start(e); + } + } + e.preventDefault(); + } + _onTimeout(initialEvent) { + this._type = 'wheel'; + this._delta -= this._lastValue; + if (!this._active) { + this._start(initialEvent); + } + } + _start(e) { + if (!this._delta) + return; + if (this._frameId) { + this._frameId = null; + } + this._active = true; + if (!this.isZooming()) { + this._zooming = true; + } + if (this._finishTimeout) { + clearTimeout(this._finishTimeout); + delete this._finishTimeout; + } + const pos = DOM.mousePos(this._el, e); + this._aroundPoint = this._aroundCenter ? this._map.transform.centerPoint : pos; + this._aroundCoord = this._map.transform.pointCoordinate3D(this._aroundPoint); + this._targetZoom = undefined; + if (!this._frameId) { + this._frameId = true; + this._handler._triggerRenderFrame(); + } + } + renderFrame() { + if (!this._frameId) + return; + this._frameId = null; + if (!this.isActive()) + return; + const tr = this._map.transform; + const startingZoom = () => { + return tr._terrainEnabled() ? tr.computeZoomRelativeTo(this._aroundCoord) : tr.zoom; + }; + if (this._delta !== 0) { + const zoomRate = this._type === 'wheel' && Math.abs(this._delta) > wheelZoomDelta ? this._wheelZoomRate : this._defaultZoomRate; + let scale = maxScalePerFrame / (1 + Math.exp(-Math.abs(this._delta * zoomRate))); + if (this._delta < 0 && scale !== 0) { + scale = 1 / scale; + } + const startZoom = startingZoom(); + const startScale = Math.pow(2, startZoom); + const fromScale = typeof this._targetZoom === 'number' ? tr.zoomScale(this._targetZoom) : startScale; + this._targetZoom = Math.min(tr.maxZoom, Math.max(tr.minZoom, tr.scaleZoom(fromScale * scale))); + if (this._type === 'wheel') { + this._startZoom = startingZoom(); + this._easing = this._smoothOutEasing(200); + } + this._delta = 0; + } + const targetZoom = typeof this._targetZoom === 'number' ? this._targetZoom : startingZoom(); + const startZoom = this._startZoom; + const easing = this._easing; + let finished = false; + let zoom; + if (this._type === 'wheel' && startZoom && easing) { + const t = Math.min((ref_properties.browser.now() - this._lastWheelEventTime) / 200, 1); + const k = easing(t); + zoom = ref_properties.number(startZoom, targetZoom, k); + if (t < 1) { + if (!this._frameId) { + this._frameId = true; + } + } else { + finished = true; + } + } else { + zoom = targetZoom; + finished = true; + } + this._active = true; + if (finished) { + this._active = false; + this._finishTimeout = setTimeout(() => { + this._zooming = false; + this._handler._triggerRenderFrame(); + delete this._targetZoom; + delete this._finishTimeout; + }, 200); + } + return { + noInertia: true, + needsRenderFrame: !finished, + zoomDelta: zoom - startingZoom(), + around: this._aroundPoint, + aroundCoord: this._aroundCoord, + originalEvent: this._lastWheelEvent + }; + } + _smoothOutEasing(duration) { + let easing = ref_properties.ease; + if (this._prevEase) { + const ease = this._prevEase, t = (ref_properties.browser.now() - ease.start) / ease.duration, speed = ease.easing(t + 0.01) - ease.easing(t), x = 0.27 / Math.sqrt(speed * speed + 0.0001) * 0.01, y = Math.sqrt(0.27 * 0.27 - x * x); + easing = ref_properties.bezier(x, y, 0.25, 1); + } + this._prevEase = { + start: ref_properties.browser.now(), + duration, + easing + }; + return easing; + } + reset() { + this._active = false; + } +} + +class DoubleClickZoomHandler { + constructor(clickZoom, TapZoom) { + this._clickZoom = clickZoom; + this._tapZoom = TapZoom; + } + enable() { + this._clickZoom.enable(); + this._tapZoom.enable(); + } + disable() { + this._clickZoom.disable(); + this._tapZoom.disable(); + } + isEnabled() { + return this._clickZoom.isEnabled() && this._tapZoom.isEnabled(); + } + isActive() { + return this._clickZoom.isActive() || this._tapZoom.isActive(); + } +} + +class ClickZoomHandler { + constructor() { + this.reset(); + } + reset() { + this._active = false; + } + dblclick(e, point) { + e.preventDefault(); + return { + cameraAnimation: map => { + map.easeTo({ + duration: 300, + zoom: map.getZoom() + (e.shiftKey ? -1 : 1), + around: map.unproject(point) + }, { originalEvent: e }); + } + }; + } + enable() { + this._enabled = true; + } + disable() { + this._enabled = false; + this.reset(); + } + isEnabled() { + return this._enabled; + } + isActive() { + return this._active; + } +} + +class TapDragZoomHandler { + constructor() { + this._tap = new TapRecognizer({ + numTouches: 1, + numTaps: 1 + }); + this.reset(); + } + reset() { + this._active = false; + delete this._swipePoint; + delete this._swipeTouch; + delete this._tapTime; + this._tap.reset(); + } + touchstart(e, points, mapTouches) { + if (this._swipePoint) + return; + if (this._tapTime && e.timeStamp - this._tapTime > MAX_TAP_INTERVAL) { + this.reset(); + } + if (!this._tapTime) { + this._tap.touchstart(e, points, mapTouches); + } else if (mapTouches.length > 0) { + this._swipePoint = points[0]; + this._swipeTouch = mapTouches[0].identifier; + } + } + touchmove(e, points, mapTouches) { + if (!this._tapTime) { + this._tap.touchmove(e, points, mapTouches); + } else if (this._swipePoint) { + if (mapTouches[0].identifier !== this._swipeTouch) { + return; + } + const newSwipePoint = points[0]; + const dist = newSwipePoint.y - this._swipePoint.y; + this._swipePoint = newSwipePoint; + e.preventDefault(); + this._active = true; + return { zoomDelta: dist / 128 }; + } + } + touchend(e, points, mapTouches) { + if (!this._tapTime) { + const point = this._tap.touchend(e, points, mapTouches); + if (point) { + this._tapTime = e.timeStamp; + } + } else if (this._swipePoint) { + if (mapTouches.length === 0) { + this.reset(); + } + } + } + touchcancel() { + this.reset(); + } + enable() { + this._enabled = true; + } + disable() { + this._enabled = false; + this.reset(); + } + isEnabled() { + return this._enabled; + } + isActive() { + return this._active; + } +} + +class DragPanHandler { + constructor(el, mousePan, touchPan) { + this._el = el; + this._mousePan = mousePan; + this._touchPan = touchPan; + } + enable(options) { + this._inertiaOptions = options || {}; + this._mousePan.enable(); + this._touchPan.enable(); + this._el.classList.add('mapboxgl-touch-drag-pan'); + } + disable() { + this._mousePan.disable(); + this._touchPan.disable(); + this._el.classList.remove('mapboxgl-touch-drag-pan'); + } + isEnabled() { + return this._mousePan.isEnabled() && this._touchPan.isEnabled(); + } + isActive() { + return this._mousePan.isActive() || this._touchPan.isActive(); + } +} + +class DragRotateHandler { + constructor(options, mouseRotate, mousePitch) { + this._pitchWithRotate = options.pitchWithRotate; + this._mouseRotate = mouseRotate; + this._mousePitch = mousePitch; + } + enable() { + this._mouseRotate.enable(); + if (this._pitchWithRotate) + this._mousePitch.enable(); + } + disable() { + this._mouseRotate.disable(); + this._mousePitch.disable(); + } + isEnabled() { + return this._mouseRotate.isEnabled() && (!this._pitchWithRotate || this._mousePitch.isEnabled()); + } + isActive() { + return this._mouseRotate.isActive() || this._mousePitch.isActive(); + } +} + +class TouchZoomRotateHandler { + constructor(el, touchZoom, touchRotate, tapDragZoom) { + this._el = el; + this._touchZoom = touchZoom; + this._touchRotate = touchRotate; + this._tapDragZoom = tapDragZoom; + this._rotationDisabled = false; + this._enabled = true; + } + enable(options) { + this._touchZoom.enable(options); + if (!this._rotationDisabled) + this._touchRotate.enable(options); + this._tapDragZoom.enable(); + this._el.classList.add('mapboxgl-touch-zoom-rotate'); + } + disable() { + this._touchZoom.disable(); + this._touchRotate.disable(); + this._tapDragZoom.disable(); + this._el.classList.remove('mapboxgl-touch-zoom-rotate'); + } + isEnabled() { + return this._touchZoom.isEnabled() && (this._rotationDisabled || this._touchRotate.isEnabled()) && this._tapDragZoom.isEnabled(); + } + isActive() { + return this._touchZoom.isActive() || this._touchRotate.isActive() || this._tapDragZoom.isActive(); + } + disableRotation() { + this._rotationDisabled = true; + this._touchRotate.disable(); + } + enableRotation() { + this._rotationDisabled = false; + if (this._touchZoom.isEnabled()) + this._touchRotate.enable(); + } +} + +const isMoving = p => p.zoom || p.drag || p.pitch || p.rotate; +class RenderFrameEvent extends ref_properties.Event { +} +class TrackingEllipsoid { + constructor() { + this.constants = [ + 1, + 1, + 0.01 + ]; + this.radius = 0; + } + setup(center, pointOnSurface) { + const centerToSurface = ref_properties.sub([], pointOnSurface, center); + if (centerToSurface[2] < 0) { + this.radius = ref_properties.length(ref_properties.div([], centerToSurface, this.constants)); + } else { + this.radius = ref_properties.length([ + centerToSurface[0], + centerToSurface[1], + 0 + ]); + } + } + projectRay(dir) { + ref_properties.div(dir, dir, this.constants); + ref_properties.normalize(dir, dir); + ref_properties.mul$1(dir, dir, this.constants); + const intersection = ref_properties.scale$2([], dir, this.radius); + if (intersection[2] > 0) { + const h = ref_properties.scale$2([], [ + 0, + 0, + 1 + ], ref_properties.dot(intersection, [ + 0, + 0, + 1 + ])); + const r = ref_properties.scale$2([], ref_properties.normalize([], [ + intersection[0], + intersection[1], + 0 + ]), this.radius); + const p = ref_properties.add([], intersection, ref_properties.scale$2([], ref_properties.sub([], ref_properties.add([], r, h), intersection), 2)); + intersection[0] = p[0]; + intersection[1] = p[1]; + } + return intersection; + } +} +function hasChange(result) { + return result.panDelta && result.panDelta.mag() || result.zoomDelta || result.bearingDelta || result.pitchDelta; +} +class HandlerManager { + constructor(map, options) { + this._map = map; + this._el = this._map.getCanvasContainer(); + this._handlers = []; + this._handlersById = {}; + this._changes = []; + this._inertia = new HandlerInertia(map); + this._bearingSnap = options.bearingSnap; + this._previousActiveHandlers = {}; + this._trackingEllipsoid = new TrackingEllipsoid(); + this._dragOrigin = null; + this._eventsInProgress = {}; + this._addDefaultHandlers(options); + ref_properties.bindAll([ + 'handleEvent', + 'handleWindowEvent' + ], this); + const el = this._el; + this._listeners = [ + [ + el, + 'touchstart', + { passive: true } + ], + [ + el, + 'touchmove', + { passive: false } + ], + [ + el, + 'touchend', + undefined + ], + [ + el, + 'touchcancel', + undefined + ], + [ + el, + 'mousedown', + undefined + ], + [ + el, + 'mousemove', + undefined + ], + [ + el, + 'mouseup', + undefined + ], + [ + ref_properties.window.document, + 'mousemove', + { capture: true } + ], + [ + ref_properties.window.document, + 'mouseup', + undefined + ], + [ + el, + 'mouseover', + undefined + ], + [ + el, + 'mouseout', + undefined + ], + [ + el, + 'dblclick', + undefined + ], + [ + el, + 'click', + undefined + ], + [ + el, + 'keydown', + { capture: false } + ], + [ + el, + 'keyup', + undefined + ], + [ + el, + 'wheel', + { passive: false } + ], + [ + el, + 'contextmenu', + undefined + ], + [ + ref_properties.window, + 'blur', + undefined + ] + ]; + for (const [target, type, listenerOptions] of this._listeners) { + DOM.addEventListener(target, type, target === ref_properties.window.document ? this.handleWindowEvent : this.handleEvent, listenerOptions); + } + } + destroy() { + for (const [target, type, listenerOptions] of this._listeners) { + DOM.removeEventListener(target, type, target === ref_properties.window.document ? this.handleWindowEvent : this.handleEvent, listenerOptions); + } + } + _addDefaultHandlers(options) { + const map = this._map; + const el = map.getCanvasContainer(); + this._add('mapEvent', new MapEventHandler(map, options)); + const boxZoom = map.boxZoom = new BoxZoomHandler(map, options); + this._add('boxZoom', boxZoom); + const tapZoom = new TapZoomHandler(); + const clickZoom = new ClickZoomHandler(); + map.doubleClickZoom = new DoubleClickZoomHandler(clickZoom, tapZoom); + this._add('tapZoom', tapZoom); + this._add('clickZoom', clickZoom); + const tapDragZoom = new TapDragZoomHandler(); + this._add('tapDragZoom', tapDragZoom); + const touchPitch = map.touchPitch = new TouchPitchHandler(); + this._add('touchPitch', touchPitch); + const mouseRotate = new MouseRotateHandler(options); + const mousePitch = new MousePitchHandler(options); + map.dragRotate = new DragRotateHandler(options, mouseRotate, mousePitch); + this._add('mouseRotate', mouseRotate, ['mousePitch']); + this._add('mousePitch', mousePitch, ['mouseRotate']); + const mousePan = new MousePanHandler(options); + const touchPan = new TouchPanHandler(options); + map.dragPan = new DragPanHandler(el, mousePan, touchPan); + this._add('mousePan', mousePan); + this._add('touchPan', touchPan, [ + 'touchZoom', + 'touchRotate' + ]); + const touchRotate = new TouchRotateHandler(); + const touchZoom = new TouchZoomHandler(); + map.touchZoomRotate = new TouchZoomRotateHandler(el, touchZoom, touchRotate, tapDragZoom); + this._add('touchRotate', touchRotate, [ + 'touchPan', + 'touchZoom' + ]); + this._add('touchZoom', touchZoom, [ + 'touchPan', + 'touchRotate' + ]); + this._add('blockableMapEvent', new BlockableMapEventHandler(map)); + const scrollZoom = map.scrollZoom = new ScrollZoomHandler(map, this); + this._add('scrollZoom', scrollZoom, ['mousePan']); + const keyboard = map.keyboard = new KeyboardHandler(); + this._add('keyboard', keyboard); + for (const name of [ + 'boxZoom', + 'doubleClickZoom', + 'tapDragZoom', + 'touchPitch', + 'dragRotate', + 'dragPan', + 'touchZoomRotate', + 'scrollZoom', + 'keyboard' + ]) { + if (options.interactive && options[name]) { + map[name].enable(options[name]); + } + } + } + _add(handlerName, handler, allowed) { + this._handlers.push({ + handlerName, + handler, + allowed + }); + this._handlersById[handlerName] = handler; + } + stop(allowEndAnimation) { + if (this._updatingCamera) + return; + for (const {handler} of this._handlers) { + handler.reset(); + } + this._inertia.clear(); + this._fireEvents({}, {}, allowEndAnimation); + this._changes = []; + } + isActive() { + for (const {handler} of this._handlers) { + if (handler.isActive()) + return true; + } + return false; + } + isZooming() { + return !!this._eventsInProgress.zoom || this._map.scrollZoom.isZooming(); + } + isRotating() { + return !!this._eventsInProgress.rotate; + } + isMoving() { + return Boolean(isMoving(this._eventsInProgress)) || this.isZooming(); + } + _blockedByActive(activeHandlers, allowed, myName) { + for (const name in activeHandlers) { + if (name === myName) + continue; + if (!allowed || allowed.indexOf(name) < 0) { + return true; + } + } + return false; + } + handleWindowEvent(e) { + this.handleEvent(e, `${ e.type }Window`); + } + _getMapTouches(touches) { + const mapTouches = []; + for (const t of touches) { + const target = t.target; + if (this._el.contains(target)) { + mapTouches.push(t); + } + } + return mapTouches; + } + handleEvent(e, eventName) { + if (e.type === 'blur') { + this.stop(true); + return; + } + this._updatingCamera = true; + const inputEvent = e.type === 'renderFrame' ? undefined : e; + const mergedHandlerResult = { needsRenderFrame: false }; + const eventsInProgress = {}; + const activeHandlers = {}; + const mapTouches = e.touches ? this._getMapTouches(e.touches) : undefined; + const points = mapTouches ? DOM.touchPos(this._el, mapTouches) : DOM.mousePos(this._el, e); + for (const {handlerName, handler, allowed} of this._handlers) { + if (!handler.isEnabled()) + continue; + let data; + if (this._blockedByActive(activeHandlers, allowed, handlerName)) { + handler.reset(); + } else { + if (handler[eventName || e.type]) { + data = handler[eventName || e.type](e, points, mapTouches); + this.mergeHandlerResult(mergedHandlerResult, eventsInProgress, data, handlerName, inputEvent); + if (data && data.needsRenderFrame) { + this._triggerRenderFrame(); + } + } + } + if (data || handler.isActive()) { + activeHandlers[handlerName] = handler; + } + } + const deactivatedHandlers = {}; + for (const name in this._previousActiveHandlers) { + if (!activeHandlers[name]) { + deactivatedHandlers[name] = inputEvent; + } + } + this._previousActiveHandlers = activeHandlers; + if (Object.keys(deactivatedHandlers).length || hasChange(mergedHandlerResult)) { + this._changes.push([ + mergedHandlerResult, + eventsInProgress, + deactivatedHandlers + ]); + this._triggerRenderFrame(); + } + if (Object.keys(activeHandlers).length || hasChange(mergedHandlerResult)) { + this._map._stop(true); + } + this._updatingCamera = false; + const {cameraAnimation} = mergedHandlerResult; + if (cameraAnimation) { + this._inertia.clear(); + this._fireEvents({}, {}, true); + this._changes = []; + cameraAnimation(this._map); + } + } + mergeHandlerResult(mergedHandlerResult, eventsInProgress, handlerResult, name, e) { + if (!handlerResult) + return; + ref_properties.extend(mergedHandlerResult, handlerResult); + const eventData = { + handlerName: name, + originalEvent: handlerResult.originalEvent || e + }; + if (handlerResult.zoomDelta !== undefined) { + eventsInProgress.zoom = eventData; + } + if (handlerResult.panDelta !== undefined) { + eventsInProgress.drag = eventData; + } + if (handlerResult.pitchDelta !== undefined) { + eventsInProgress.pitch = eventData; + } + if (handlerResult.bearingDelta !== undefined) { + eventsInProgress.rotate = eventData; + } + } + _applyChanges() { + const combined = {}; + const combinedEventsInProgress = {}; + const combinedDeactivatedHandlers = {}; + for (const [change, eventsInProgress, deactivatedHandlers] of this._changes) { + if (change.panDelta) + combined.panDelta = (combined.panDelta || new ref_properties.Point(0, 0))._add(change.panDelta); + if (change.zoomDelta) + combined.zoomDelta = (combined.zoomDelta || 0) + change.zoomDelta; + if (change.bearingDelta) + combined.bearingDelta = (combined.bearingDelta || 0) + change.bearingDelta; + if (change.pitchDelta) + combined.pitchDelta = (combined.pitchDelta || 0) + change.pitchDelta; + if (change.around !== undefined) + combined.around = change.around; + if (change.aroundCoord !== undefined) + combined.aroundCoord = change.aroundCoord; + if (change.pinchAround !== undefined) + combined.pinchAround = change.pinchAround; + if (change.noInertia) + combined.noInertia = change.noInertia; + ref_properties.extend(combinedEventsInProgress, eventsInProgress); + ref_properties.extend(combinedDeactivatedHandlers, deactivatedHandlers); + } + this._updateMapTransform(combined, combinedEventsInProgress, combinedDeactivatedHandlers); + this._changes = []; + } + _updateMapTransform(combinedResult, combinedEventsInProgress, deactivatedHandlers) { + const map = this._map; + const tr = map.transform; + const eventStarted = type => { + const newEvent = combinedEventsInProgress[type]; + return newEvent && !this._eventsInProgress[type]; + }; + const eventEnded = type => { + const event = this._eventsInProgress[type]; + return event && !this._handlersById[event.handlerName].isActive(); + }; + const toVec3 = p => [ + p.x, + p.y, + p.z + ]; + if (eventEnded('drag') && !hasChange(combinedResult)) { + const preZoom = tr.zoom; + tr.cameraElevationReference = 'sea'; + tr.recenterOnTerrain(); + tr.cameraElevationReference = 'ground'; + if (preZoom !== tr.zoom) + this._map._update(true); + } + if (!hasChange(combinedResult)) { + return this._fireEvents(combinedEventsInProgress, deactivatedHandlers, true); + } + let {panDelta, zoomDelta, bearingDelta, pitchDelta, around, aroundCoord, pinchAround} = combinedResult; + if (pinchAround !== undefined) { + around = pinchAround; + } + if (eventStarted('drag') && around) { + this._dragOrigin = toVec3(tr.pointCoordinate3D(around)); + this._trackingEllipsoid.setup(tr._camera.position, this._dragOrigin); + } + tr.cameraElevationReference = 'sea'; + map._stop(true); + around = around || map.transform.centerPoint; + if (bearingDelta) + tr.bearing += bearingDelta; + if (pitchDelta) + tr.pitch += pitchDelta; + tr._updateCameraState(); + const panVec = [ + 0, + 0, + 0 + ]; + if (panDelta) { + const startRay = tr.screenPointToMercatorRay(around); + const endRay = tr.screenPointToMercatorRay(around.sub(panDelta)); + const startPoint = this._trackingEllipsoid.projectRay(startRay.dir); + const endPoint = this._trackingEllipsoid.projectRay(endRay.dir); + panVec[0] = endPoint[0] - startPoint[0]; + panVec[1] = endPoint[1] - startPoint[1]; + } + const originalZoom = tr.zoom; + const zoomVec = [ + 0, + 0, + 0 + ]; + if (zoomDelta) { + const pickedPosition = aroundCoord ? toVec3(aroundCoord) : toVec3(tr.pointCoordinate3D(around)); + const aroundRay = { dir: ref_properties.normalize([], ref_properties.sub([], pickedPosition, tr._camera.position)) }; + const centerRay = tr.screenPointToMercatorRay(tr.centerPoint); + if (aroundRay.dir[2] < 0) { + const pickedAltitude = ref_properties.altitudeFromMercatorZ(pickedPosition[2], pickedPosition[1]); + const centerOnTargetPlane = tr.rayIntersectionCoordinate(tr.pointRayIntersection(tr.centerPoint, pickedAltitude)); + const movement = tr.zoomDeltaToMovement(toVec3(centerOnTargetPlane), zoomDelta) * (centerRay.dir[2] / aroundRay.dir[2]); + ref_properties.scale$2(zoomVec, aroundRay.dir, movement); + } else if (tr._terrainEnabled()) { + const movement = tr.zoomDeltaToMovement(pickedPosition, zoomDelta); + ref_properties.scale$2(zoomVec, aroundRay.dir, movement); + } + } + const translation = ref_properties.add(panVec, panVec, zoomVec); + tr._translateCameraConstrained(translation); + if (zoomDelta && Math.abs(tr.zoom - originalZoom) > 0.0001) { + tr.recenterOnTerrain(); + } + tr.cameraElevationReference = 'ground'; + this._map._update(); + if (!combinedResult.noInertia) + this._inertia.record(combinedResult); + this._fireEvents(combinedEventsInProgress, deactivatedHandlers, true); + } + _fireEvents(newEventsInProgress, deactivatedHandlers, allowEndAnimation) { + const wasMoving = isMoving(this._eventsInProgress); + const nowMoving = isMoving(newEventsInProgress); + const startEvents = {}; + for (const eventName in newEventsInProgress) { + const {originalEvent} = newEventsInProgress[eventName]; + if (!this._eventsInProgress[eventName]) { + startEvents[`${ eventName }start`] = originalEvent; + } + this._eventsInProgress[eventName] = newEventsInProgress[eventName]; + } + if (!wasMoving && nowMoving) { + this._fireEvent('movestart', nowMoving.originalEvent); + } + for (const name in startEvents) { + this._fireEvent(name, startEvents[name]); + } + if (nowMoving) { + this._fireEvent('move', nowMoving.originalEvent); + } + for (const eventName in newEventsInProgress) { + const {originalEvent} = newEventsInProgress[eventName]; + this._fireEvent(eventName, originalEvent); + } + const endEvents = {}; + let originalEndEvent; + for (const eventName in this._eventsInProgress) { + const {handlerName, originalEvent} = this._eventsInProgress[eventName]; + if (!this._handlersById[handlerName].isActive()) { + delete this._eventsInProgress[eventName]; + originalEndEvent = deactivatedHandlers[handlerName] || originalEvent; + endEvents[`${ eventName }end`] = originalEndEvent; + } + } + for (const name in endEvents) { + this._fireEvent(name, endEvents[name]); + } + const stillMoving = isMoving(this._eventsInProgress); + if (allowEndAnimation && (wasMoving || nowMoving) && !stillMoving) { + this._updatingCamera = true; + const inertialEase = this._inertia._onMoveEnd(this._map.dragPan._inertiaOptions); + const shouldSnapToNorth = bearing => bearing !== 0 && -this._bearingSnap < bearing && bearing < this._bearingSnap; + if (inertialEase) { + if (shouldSnapToNorth(inertialEase.bearing || this._map.getBearing())) { + inertialEase.bearing = 0; + } + this._map.easeTo(inertialEase, { originalEvent: originalEndEvent }); + } else { + this._map.fire(new ref_properties.Event('moveend', { originalEvent: originalEndEvent })); + if (shouldSnapToNorth(this._map.getBearing())) { + this._map.resetNorth(); + } + } + this._updatingCamera = false; + } + } + _fireEvent(type, e) { + this._map.fire(new ref_properties.Event(type, e ? { originalEvent: e } : {})); + } + _requestFrame() { + this._map.triggerRepaint(); + return this._map._renderTaskQueue.add(timeStamp => { + delete this._frameId; + this.handleEvent(new RenderFrameEvent('renderFrame', { timeStamp })); + this._applyChanges(); + }); + } + _triggerRenderFrame() { + if (this._frameId === undefined) { + this._frameId = this._requestFrame(); + } + } +} + +class Camera extends ref_properties.Evented { + constructor(transform, options) { + super(); + this._moving = false; + this._zooming = false; + this.transform = transform; + this._bearingSnap = options.bearingSnap; + ref_properties.bindAll(['_renderFrameCallback'], this); + } + getCenter() { + return new ref_properties.LngLat(this.transform.center.lng, this.transform.center.lat); + } + setCenter(center, eventData) { + return this.jumpTo({ center }, eventData); + } + panBy(offset, options, eventData) { + offset = ref_properties.Point.convert(offset).mult(-1); + return this.panTo(this.transform.center, ref_properties.extend({ offset }, options), eventData); + } + panTo(lnglat, options, eventData) { + return this.easeTo(ref_properties.extend({ center: lnglat }, options), eventData); + } + getZoom() { + return this.transform.zoom; + } + setZoom(zoom, eventData) { + this.jumpTo({ zoom }, eventData); + return this; + } + zoomTo(zoom, options, eventData) { + return this.easeTo(ref_properties.extend({ zoom }, options), eventData); + } + zoomIn(options, eventData) { + this.zoomTo(this.getZoom() + 1, options, eventData); + return this; + } + zoomOut(options, eventData) { + this.zoomTo(this.getZoom() - 1, options, eventData); + return this; + } + getBearing() { + return this.transform.bearing; + } + setBearing(bearing, eventData) { + this.jumpTo({ bearing }, eventData); + return this; + } + getPadding() { + return this.transform.padding; + } + setPadding(padding, eventData) { + this.jumpTo({ padding }, eventData); + return this; + } + rotateTo(bearing, options, eventData) { + return this.easeTo(ref_properties.extend({ bearing }, options), eventData); + } + resetNorth(options, eventData) { + this.rotateTo(0, ref_properties.extend({ duration: 1000 }, options), eventData); + return this; + } + resetNorthPitch(options, eventData) { + this.easeTo(ref_properties.extend({ + bearing: 0, + pitch: 0, + duration: 1000 + }, options), eventData); + return this; + } + snapToNorth(options, eventData) { + if (Math.abs(this.getBearing()) < this._bearingSnap) { + return this.resetNorth(options, eventData); + } + return this; + } + getPitch() { + return this.transform.pitch; + } + setPitch(pitch, eventData) { + this.jumpTo({ pitch }, eventData); + return this; + } + cameraForBounds(bounds, options) { + bounds = ref_properties.LngLatBounds.convert(bounds); + const bearing = options && options.bearing || 0; + return this._cameraForBoxAndBearing(bounds.getNorthWest(), bounds.getSouthEast(), bearing, options); + } + _extendCameraOptions(options) { + const defaultPadding = { + top: 0, + bottom: 0, + right: 0, + left: 0 + }; + options = ref_properties.extend({ + padding: defaultPadding, + offset: [ + 0, + 0 + ], + maxZoom: this.transform.maxZoom + }, options); + if (typeof options.padding === 'number') { + const p = options.padding; + options.padding = { + top: p, + bottom: p, + right: p, + left: p + }; + } + options.padding = ref_properties.extend(defaultPadding, options.padding); + return options; + } + _cameraForBoxAndBearing(p0, p1, bearing, options) { + const eOptions = this._extendCameraOptions(options); + const tr = this.transform; + const edgePadding = tr.padding; + const p0world = tr.project(ref_properties.LngLat.convert(p0)); + const p1world = tr.project(ref_properties.LngLat.convert(p1)); + const p0rotated = p0world.rotate(-ref_properties.degToRad(bearing)); + const p1rotated = p1world.rotate(-ref_properties.degToRad(bearing)); + const upperRight = new ref_properties.Point(Math.max(p0rotated.x, p1rotated.x), Math.max(p0rotated.y, p1rotated.y)); + const lowerLeft = new ref_properties.Point(Math.min(p0rotated.x, p1rotated.x), Math.min(p0rotated.y, p1rotated.y)); + const size = upperRight.sub(lowerLeft); + const scaleX = (tr.width - (edgePadding.left + edgePadding.right + eOptions.padding.left + eOptions.padding.right)) / size.x; + const scaleY = (tr.height - (edgePadding.top + edgePadding.bottom + eOptions.padding.top + eOptions.padding.bottom)) / size.y; + if (scaleY < 0 || scaleX < 0) { + ref_properties.warnOnce('Map cannot fit within canvas with the given bounds, padding, and/or offset.'); + return; + } + const zoom = Math.min(tr.scaleZoom(tr.scale * Math.min(scaleX, scaleY)), eOptions.maxZoom); + const offset = typeof eOptions.offset.x === 'number' ? new ref_properties.Point(eOptions.offset.x, eOptions.offset.y) : ref_properties.Point.convert(eOptions.offset); + const paddingOffsetX = (eOptions.padding.left - eOptions.padding.right) / 2; + const paddingOffsetY = (eOptions.padding.top - eOptions.padding.bottom) / 2; + const paddingOffset = new ref_properties.Point(paddingOffsetX, paddingOffsetY); + const rotatedPaddingOffset = paddingOffset.rotate(bearing * Math.PI / 180); + const offsetAtInitialZoom = offset.add(rotatedPaddingOffset); + const offsetAtFinalZoom = offsetAtInitialZoom.mult(tr.scale / tr.zoomScale(zoom)); + const center = tr.unproject(p0world.add(p1world).div(2).sub(offsetAtFinalZoom)); + return { + center, + zoom, + bearing + }; + } + _cameraForBox(p0, p1, minAltitude, maxAltitude, options) { + const eOptions = this._extendCameraOptions(options); + minAltitude = minAltitude || 0; + maxAltitude = maxAltitude || 0; + p0 = ref_properties.LngLat.convert(p0); + p1 = ref_properties.LngLat.convert(p1); + const tr = this.transform.clone(); + tr.padding = eOptions.padding; + const camera = this.getFreeCameraOptions(); + const focus = new ref_properties.LngLat((p0.lng + p1.lng) * 0.5, (p0.lat + p1.lat) * 0.5); + const focusAltitude = (minAltitude + maxAltitude) * 0.5; + if (tr._camera.position[2] < ref_properties.mercatorZfromAltitude(focusAltitude, focus.lat)) { + ref_properties.warnOnce('Map cannot fit within canvas with the given bounds, padding, and/or offset.'); + return; + } + camera.lookAtPoint(focus); + tr.setFreeCameraOptions(camera); + const coord0 = ref_properties.MercatorCoordinate.fromLngLat(p0); + const coord1 = ref_properties.MercatorCoordinate.fromLngLat(p1); + const toVec3 = p => [ + p.x, + p.y, + p.z + ]; + const centerIntersectionPoint = tr.pointRayIntersection(tr.centerPoint, focusAltitude); + const centerIntersectionCoord = toVec3(tr.rayIntersectionCoordinate(centerIntersectionPoint)); + const centerMercatorRay = tr.screenPointToMercatorRay(tr.centerPoint); + const maxMarchingSteps = 10; + let steps = 0; + let halfDistanceToGround; + do { + const z = Math.floor(tr.zoom); + const z2 = 1 << z; + const minX = Math.min(z2 * coord0.x, z2 * coord1.x); + const minY = Math.min(z2 * coord0.y, z2 * coord1.y); + const maxX = Math.max(z2 * coord0.x, z2 * coord1.x); + const maxY = Math.max(z2 * coord0.y, z2 * coord1.y); + const aabb = new ref_properties.Aabb([ + minX, + minY, + minAltitude + ], [ + maxX, + maxY, + maxAltitude + ]); + const frustum = ref_properties.Frustum.fromInvProjectionMatrix(tr.invProjMatrix, tr.worldSize, z); + if (aabb.intersects(frustum) !== 2) { + if (halfDistanceToGround) { + tr._camera.position = ref_properties.scaleAndAdd([], tr._camera.position, centerMercatorRay.dir, -halfDistanceToGround); + tr._updateStateFromCamera(); + } + break; + } + const cameraPositionToGround = ref_properties.sub([], tr._camera.position, centerIntersectionCoord); + halfDistanceToGround = 0.5 * ref_properties.length(cameraPositionToGround); + tr._camera.position = ref_properties.scaleAndAdd([], tr._camera.position, centerMercatorRay.dir, halfDistanceToGround); + try { + tr._updateStateFromCamera(); + } catch (e) { + ref_properties.warnOnce('Map cannot fit within canvas with the given bounds, padding, and/or offset.'); + return; + } + } while (++steps < maxMarchingSteps); + return { + center: tr.center, + zoom: tr.zoom, + bearing: tr.bearing, + pitch: tr.pitch + }; + } + fitBounds(bounds, options, eventData) { + return this._fitInternal(this.cameraForBounds(bounds, options), options, eventData); + } + _raycastElevationBox(point0, point1) { + const elevation = this.transform.elevation; + if (!elevation) + return; + const point2 = new ref_properties.Point(point0.x, point1.y); + const point3 = new ref_properties.Point(point1.x, point0.y); + const r0 = elevation.pointCoordinate(point0); + if (!r0) + return; + const r1 = elevation.pointCoordinate(point1); + if (!r1) + return; + const r2 = elevation.pointCoordinate(point2); + if (!r2) + return; + const r3 = elevation.pointCoordinate(point3); + if (!r3) + return; + const m0 = new ref_properties.MercatorCoordinate(r0[0], r0[1]).toLngLat(); + const m1 = new ref_properties.MercatorCoordinate(r1[0], r1[1]).toLngLat(); + const m2 = new ref_properties.MercatorCoordinate(r2[0], r2[1]).toLngLat(); + const m3 = new ref_properties.MercatorCoordinate(r3[0], r3[1]).toLngLat(); + const minLng = Math.min(m0.lng, Math.min(m1.lng, Math.min(m2.lng, m3.lng))); + const minLat = Math.min(m0.lat, Math.min(m1.lat, Math.min(m2.lat, m3.lat))); + const maxLng = Math.max(m0.lng, Math.max(m1.lng, Math.max(m2.lng, m3.lng))); + const maxLat = Math.max(m0.lat, Math.max(m1.lat, Math.max(m2.lat, m3.lat))); + const minAltitude = Math.min(r0[3], Math.min(r1[3], Math.min(r2[3], r3[3]))); + const maxAltitude = Math.max(r0[3], Math.max(r1[3], Math.max(r2[3], r3[3]))); + const minLngLat = new ref_properties.LngLat(minLng, minLat); + const maxLngLat = new ref_properties.LngLat(maxLng, maxLat); + return { + minLngLat, + maxLngLat, + minAltitude, + maxAltitude + }; + } + fitScreenCoordinates(p0, p1, bearing, options, eventData) { + let lngLat0, lngLat1, minAltitude, maxAltitude; + const point0 = ref_properties.Point.convert(p0); + const point1 = ref_properties.Point.convert(p1); + const raycast = this._raycastElevationBox(point0, point1); + if (!raycast) { + if (this.transform.isHorizonVisibleForPoints(point0, point1)) { + return this; + } + lngLat0 = this.transform.pointLocation(point0); + lngLat1 = this.transform.pointLocation(point1); + } else { + lngLat0 = raycast.minLngLat; + lngLat1 = raycast.maxLngLat; + minAltitude = raycast.minAltitude; + maxAltitude = raycast.maxAltitude; + } + if (this.transform.pitch === 0) { + return this._fitInternal(this._cameraForBoxAndBearing(this.transform.pointLocation(ref_properties.Point.convert(p0)), this.transform.pointLocation(ref_properties.Point.convert(p1)), bearing, options), options, eventData); + } + return this._fitInternal(this._cameraForBox(lngLat0, lngLat1, minAltitude, maxAltitude, options), options, eventData); + } + _fitInternal(calculatedOptions, options, eventData) { + if (!calculatedOptions) + return this; + options = ref_properties.extend(calculatedOptions, options); + delete options.padding; + return options.linear ? this.easeTo(options, eventData) : this.flyTo(options, eventData); + } + jumpTo(options, eventData) { + this.stop(); + const tr = this.transform; + let zoomChanged = false, bearingChanged = false, pitchChanged = false; + if ('zoom' in options && tr.zoom !== +options.zoom) { + zoomChanged = true; + tr.zoom = +options.zoom; + } + if (options.center !== undefined) { + tr.center = ref_properties.LngLat.convert(options.center); + } + if ('bearing' in options && tr.bearing !== +options.bearing) { + bearingChanged = true; + tr.bearing = +options.bearing; + } + if ('pitch' in options && tr.pitch !== +options.pitch) { + pitchChanged = true; + tr.pitch = +options.pitch; + } + if (options.padding != null && !tr.isPaddingEqual(options.padding)) { + tr.padding = options.padding; + } + this.fire(new ref_properties.Event('movestart', eventData)).fire(new ref_properties.Event('move', eventData)); + if (zoomChanged) { + this.fire(new ref_properties.Event('zoomstart', eventData)).fire(new ref_properties.Event('zoom', eventData)).fire(new ref_properties.Event('zoomend', eventData)); + } + if (bearingChanged) { + this.fire(new ref_properties.Event('rotatestart', eventData)).fire(new ref_properties.Event('rotate', eventData)).fire(new ref_properties.Event('rotateend', eventData)); + } + if (pitchChanged) { + this.fire(new ref_properties.Event('pitchstart', eventData)).fire(new ref_properties.Event('pitch', eventData)).fire(new ref_properties.Event('pitchend', eventData)); + } + return this.fire(new ref_properties.Event('moveend', eventData)); + } + getFreeCameraOptions() { + return this.transform.getFreeCameraOptions(); + } + setFreeCameraOptions(options, eventData) { + this.stop(); + const tr = this.transform; + const prevZoom = tr.zoom; + const prevPitch = tr.pitch; + const prevBearing = tr.bearing; + tr.setFreeCameraOptions(options); + const zoomChanged = prevZoom !== tr.zoom; + const pitchChanged = prevPitch !== tr.pitch; + const bearingChanged = prevBearing !== tr.bearing; + this.fire(new ref_properties.Event('movestart', eventData)).fire(new ref_properties.Event('move', eventData)); + if (zoomChanged) { + this.fire(new ref_properties.Event('zoomstart', eventData)).fire(new ref_properties.Event('zoom', eventData)).fire(new ref_properties.Event('zoomend', eventData)); + } + if (bearingChanged) { + this.fire(new ref_properties.Event('rotatestart', eventData)).fire(new ref_properties.Event('rotate', eventData)).fire(new ref_properties.Event('rotateend', eventData)); + } + if (pitchChanged) { + this.fire(new ref_properties.Event('pitchstart', eventData)).fire(new ref_properties.Event('pitch', eventData)).fire(new ref_properties.Event('pitchend', eventData)); + } + this.fire(new ref_properties.Event('moveend', eventData)); + return this; + } + easeTo(options, eventData) { + this._stop(false, options.easeId); + options = ref_properties.extend({ + offset: [ + 0, + 0 + ], + duration: 500, + easing: ref_properties.ease + }, options); + if (options.animate === false || !options.essential && ref_properties.browser.prefersReducedMotion) + options.duration = 0; + const tr = this.transform, startZoom = this.getZoom(), startBearing = this.getBearing(), startPitch = this.getPitch(), startPadding = this.getPadding(), zoom = 'zoom' in options ? +options.zoom : startZoom, bearing = 'bearing' in options ? this._normalizeBearing(options.bearing, startBearing) : startBearing, pitch = 'pitch' in options ? +options.pitch : startPitch, padding = 'padding' in options ? options.padding : tr.padding; + const offsetAsPoint = ref_properties.Point.convert(options.offset); + let pointAtOffset = tr.centerPoint.add(offsetAsPoint); + const locationAtOffset = tr.pointLocation(pointAtOffset); + const center = ref_properties.LngLat.convert(options.center || locationAtOffset); + this._normalizeCenter(center); + const from = tr.project(locationAtOffset); + const delta = tr.project(center).sub(from); + const finalScale = tr.zoomScale(zoom - startZoom); + let around, aroundPoint; + if (options.around) { + around = ref_properties.LngLat.convert(options.around); + aroundPoint = tr.locationPoint(around); + } + const currently = { + moving: this._moving, + zooming: this._zooming, + rotating: this._rotating, + pitching: this._pitching + }; + this._zooming = this._zooming || zoom !== startZoom; + this._rotating = this._rotating || startBearing !== bearing; + this._pitching = this._pitching || pitch !== startPitch; + this._padding = !tr.isPaddingEqual(padding); + this._easeId = options.easeId; + this._prepareEase(eventData, options.noMoveStart, currently); + this._ease(k => { + if (this._zooming) { + tr.zoom = ref_properties.number(startZoom, zoom, k); + } + if (this._rotating) { + tr.bearing = ref_properties.number(startBearing, bearing, k); + } + if (this._pitching) { + tr.pitch = ref_properties.number(startPitch, pitch, k); + } + if (this._padding) { + tr.interpolatePadding(startPadding, padding, k); + pointAtOffset = tr.centerPoint.add(offsetAsPoint); + } + if (around) { + tr.setLocationAtPoint(around, aroundPoint); + } else { + const scale = tr.zoomScale(tr.zoom - startZoom); + const base = zoom > startZoom ? Math.min(2, finalScale) : Math.max(0.5, finalScale); + const speedup = Math.pow(base, 1 - k); + const newCenter = tr.unproject(from.add(delta.mult(k * speedup)).mult(scale)); + tr.setLocationAtPoint(tr.renderWorldCopies ? newCenter.wrap() : newCenter, pointAtOffset); + } + this._fireMoveEvents(eventData); + }, interruptingEaseId => { + tr.recenterOnTerrain(); + this._afterEase(eventData, interruptingEaseId); + }, options); + return this; + } + _prepareEase(eventData, noMoveStart, currently = {}) { + this._moving = true; + this.transform.cameraElevationReference = 'sea'; + if (!noMoveStart && !currently.moving) { + this.fire(new ref_properties.Event('movestart', eventData)); + } + if (this._zooming && !currently.zooming) { + this.fire(new ref_properties.Event('zoomstart', eventData)); + } + if (this._rotating && !currently.rotating) { + this.fire(new ref_properties.Event('rotatestart', eventData)); + } + if (this._pitching && !currently.pitching) { + this.fire(new ref_properties.Event('pitchstart', eventData)); + } + } + _fireMoveEvents(eventData) { + this.fire(new ref_properties.Event('move', eventData)); + if (this._zooming) { + this.fire(new ref_properties.Event('zoom', eventData)); + } + if (this._rotating) { + this.fire(new ref_properties.Event('rotate', eventData)); + } + if (this._pitching) { + this.fire(new ref_properties.Event('pitch', eventData)); + } + } + _afterEase(eventData, easeId) { + if (this._easeId && easeId && this._easeId === easeId) { + return; + } + delete this._easeId; + this.transform.cameraElevationReference = 'ground'; + const wasZooming = this._zooming; + const wasRotating = this._rotating; + const wasPitching = this._pitching; + this._moving = false; + this._zooming = false; + this._rotating = false; + this._pitching = false; + this._padding = false; + if (wasZooming) { + this.fire(new ref_properties.Event('zoomend', eventData)); + } + if (wasRotating) { + this.fire(new ref_properties.Event('rotateend', eventData)); + } + if (wasPitching) { + this.fire(new ref_properties.Event('pitchend', eventData)); + } + this.fire(new ref_properties.Event('moveend', eventData)); + } + flyTo(options, eventData) { + if (!options.essential && ref_properties.browser.prefersReducedMotion) { + const coercedOptions = ref_properties.pick(options, [ + 'center', + 'zoom', + 'bearing', + 'pitch', + 'around' + ]); + return this.jumpTo(coercedOptions, eventData); + } + this.stop(); + options = ref_properties.extend({ + offset: [ + 0, + 0 + ], + speed: 1.2, + curve: 1.42, + easing: ref_properties.ease + }, options); + const tr = this.transform, startZoom = this.getZoom(), startBearing = this.getBearing(), startPitch = this.getPitch(), startPadding = this.getPadding(); + const zoom = 'zoom' in options ? ref_properties.clamp(+options.zoom, tr.minZoom, tr.maxZoom) : startZoom; + const bearing = 'bearing' in options ? this._normalizeBearing(options.bearing, startBearing) : startBearing; + const pitch = 'pitch' in options ? +options.pitch : startPitch; + const padding = 'padding' in options ? options.padding : tr.padding; + const scale = tr.zoomScale(zoom - startZoom); + const offsetAsPoint = ref_properties.Point.convert(options.offset); + let pointAtOffset = tr.centerPoint.add(offsetAsPoint); + const locationAtOffset = tr.pointLocation(pointAtOffset); + const center = ref_properties.LngLat.convert(options.center || locationAtOffset); + this._normalizeCenter(center); + const from = tr.project(locationAtOffset); + const delta = tr.project(center).sub(from); + let rho = options.curve; + const w0 = Math.max(tr.width, tr.height), w1 = w0 / scale, u1 = delta.mag(); + if ('minZoom' in options) { + const minZoom = ref_properties.clamp(Math.min(options.minZoom, startZoom, zoom), tr.minZoom, tr.maxZoom); + const wMax = w0 / tr.zoomScale(minZoom - startZoom); + rho = Math.sqrt(wMax / u1 * 2); + } + const rho2 = rho * rho; + function r(i) { + const b = (w1 * w1 - w0 * w0 + (i ? -1 : 1) * rho2 * rho2 * u1 * u1) / (2 * (i ? w1 : w0) * rho2 * u1); + return Math.log(Math.sqrt(b * b + 1) - b); + } + function sinh(n) { + return (Math.exp(n) - Math.exp(-n)) / 2; + } + function cosh(n) { + return (Math.exp(n) + Math.exp(-n)) / 2; + } + function tanh(n) { + return sinh(n) / cosh(n); + } + const r0 = r(0); + let w = function (s) { + return cosh(r0) / cosh(r0 + rho * s); + }; + let u = function (s) { + return w0 * ((cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2) / u1; + }; + let S = (r(1) - r0) / rho; + if (Math.abs(u1) < 0.000001 || !isFinite(S)) { + if (Math.abs(w0 - w1) < 0.000001) + return this.easeTo(options, eventData); + const k = w1 < w0 ? -1 : 1; + S = Math.abs(Math.log(w1 / w0)) / rho; + u = function () { + return 0; + }; + w = function (s) { + return Math.exp(k * rho * s); + }; + } + if ('duration' in options) { + options.duration = +options.duration; + } else { + const V = 'screenSpeed' in options ? +options.screenSpeed / rho : +options.speed; + options.duration = 1000 * S / V; + } + if (options.maxDuration && options.duration > options.maxDuration) { + options.duration = 0; + } + this._zooming = true; + this._rotating = startBearing !== bearing; + this._pitching = pitch !== startPitch; + this._padding = !tr.isPaddingEqual(padding); + this._prepareEase(eventData, false); + this._ease(k => { + const s = k * S; + const scale = 1 / w(s); + tr.zoom = k === 1 ? zoom : startZoom + tr.scaleZoom(scale); + if (this._rotating) { + tr.bearing = ref_properties.number(startBearing, bearing, k); + } + if (this._pitching) { + tr.pitch = ref_properties.number(startPitch, pitch, k); + } + if (this._padding) { + tr.interpolatePadding(startPadding, padding, k); + pointAtOffset = tr.centerPoint.add(offsetAsPoint); + } + const newCenter = k === 1 ? center : tr.unproject(from.add(delta.mult(u(s))).mult(scale)); + tr.setLocationAtPoint(tr.renderWorldCopies ? newCenter.wrap() : newCenter, pointAtOffset); + tr._updateCenterElevation(); + this._fireMoveEvents(eventData); + }, () => this._afterEase(eventData), options); + return this; + } + isEasing() { + return !!this._easeFrameId; + } + stop() { + return this._stop(); + } + _stop(allowGestures, easeId) { + if (this._easeFrameId) { + this._cancelRenderFrame(this._easeFrameId); + delete this._easeFrameId; + delete this._onEaseFrame; + } + if (this._onEaseEnd) { + const onEaseEnd = this._onEaseEnd; + delete this._onEaseEnd; + onEaseEnd.call(this, easeId); + } + if (!allowGestures) { + const handlers = this.handlers; + if (handlers) + handlers.stop(false); + } + return this; + } + _ease(frame, finish, options) { + if (options.animate === false || options.duration === 0) { + frame(1); + finish(); + } else { + this._easeStart = ref_properties.browser.now(); + this._easeOptions = options; + this._onEaseFrame = frame; + this._onEaseEnd = finish; + this._easeFrameId = this._requestRenderFrame(this._renderFrameCallback); + } + } + _renderFrameCallback() { + const t = Math.min((ref_properties.browser.now() - this._easeStart) / this._easeOptions.duration, 1); + this._onEaseFrame(this._easeOptions.easing(t)); + if (t < 1) { + this._easeFrameId = this._requestRenderFrame(this._renderFrameCallback); + } else { + this.stop(); + } + } + _normalizeBearing(bearing, currentBearing) { + bearing = ref_properties.wrap(bearing, -180, 180); + const diff = Math.abs(bearing - currentBearing); + if (Math.abs(bearing - 360 - currentBearing) < diff) + bearing -= 360; + if (Math.abs(bearing + 360 - currentBearing) < diff) + bearing += 360; + return bearing; + } + _normalizeCenter(center) { + const tr = this.transform; + if (!tr.renderWorldCopies || tr.lngRange) + return; + const delta = center.lng - tr.center.lng; + center.lng += delta > 180 ? -360 : delta < -180 ? 360 : 0; + } +} + +class AttributionControl { + constructor(options = {}) { + this.options = options; + ref_properties.bindAll([ + '_toggleAttribution', + '_updateEditLink', + '_updateData', + '_updateCompact' + ], this); + } + getDefaultPosition() { + return 'bottom-right'; + } + onAdd(map) { + const compact = this.options && this.options.compact; + this._map = map; + this._container = DOM.create('div', 'mapboxgl-ctrl mapboxgl-ctrl-attrib'); + this._compactButton = DOM.create('button', 'mapboxgl-ctrl-attrib-button', this._container); + this._compactButton.addEventListener('click', this._toggleAttribution); + this._setElementTitle(this._compactButton, 'ToggleAttribution'); + this._innerContainer = DOM.create('div', 'mapboxgl-ctrl-attrib-inner', this._container); + this._innerContainer.setAttribute('role', 'list'); + if (compact) { + this._container.classList.add('mapboxgl-compact'); + } + this._updateAttributions(); + this._updateEditLink(); + this._map.on('styledata', this._updateData); + this._map.on('sourcedata', this._updateData); + this._map.on('moveend', this._updateEditLink); + if (compact === undefined) { + this._map.on('resize', this._updateCompact); + this._updateCompact(); + } + return this._container; + } + onRemove() { + DOM.remove(this._container); + this._map.off('styledata', this._updateData); + this._map.off('sourcedata', this._updateData); + this._map.off('moveend', this._updateEditLink); + this._map.off('resize', this._updateCompact); + this._map = undefined; + this._attribHTML = undefined; + } + _setElementTitle(element, title) { + const str = this._map._getUIString(`AttributionControl.${ title }`); + element.title = str; + element.setAttribute('aria-label', str); + } + _toggleAttribution() { + if (this._container.classList.contains('mapboxgl-compact-show')) { + this._container.classList.remove('mapboxgl-compact-show'); + this._compactButton.setAttribute('aria-pressed', 'false'); + } else { + this._container.classList.add('mapboxgl-compact-show'); + this._compactButton.setAttribute('aria-pressed', 'true'); + } + } + _updateEditLink() { + let editLink = this._editLink; + if (!editLink) { + editLink = this._editLink = this._container.querySelector('.mapbox-improve-map'); + } + const params = [ + { + key: 'owner', + value: this.styleOwner + }, + { + key: 'id', + value: this.styleId + }, + { + key: 'access_token', + value: this._map._requestManager._customAccessToken || ref_properties.config.ACCESS_TOKEN + } + ]; + if (editLink) { + const paramString = params.reduce((acc, next, i) => { + if (next.value) { + acc += `${ next.key }=${ next.value }${ i < params.length - 1 ? '&' : '' }`; + } + return acc; + }, `?`); + editLink.href = `${ ref_properties.config.FEEDBACK_URL }/${ paramString }${ this._map._hash ? this._map._hash.getHashString(true) : '' }`; + editLink.rel = 'noopener nofollow'; + this._setElementTitle(editLink, 'MapFeedback'); + } + } + _updateData(e) { + if (e && (e.sourceDataType === 'metadata' || e.sourceDataType === 'visibility' || e.dataType === 'style')) { + this._updateAttributions(); + this._updateEditLink(); + } + } + _updateAttributions() { + if (!this._map.style) + return; + let attributions = []; + if (this.options.customAttribution) { + if (Array.isArray(this.options.customAttribution)) { + attributions = attributions.concat(this.options.customAttribution.map(attribution => { + if (typeof attribution !== 'string') + return ''; + return attribution; + })); + } else if (typeof this.options.customAttribution === 'string') { + attributions.push(this.options.customAttribution); + } + } + if (this._map.style.stylesheet) { + const stylesheet = this._map.style.stylesheet; + this.styleOwner = stylesheet.owner; + this.styleId = stylesheet.id; + } + const sourceCaches = this._map.style._sourceCaches; + for (const id in sourceCaches) { + const sourceCache = sourceCaches[id]; + if (sourceCache.used) { + const source = sourceCache.getSource(); + if (source.attribution && attributions.indexOf(source.attribution) < 0) { + attributions.push(source.attribution); + } + } + } + attributions.sort((a, b) => a.length - b.length); + attributions = attributions.filter((attrib, i) => { + for (let j = i + 1; j < attributions.length; j++) { + if (attributions[j].indexOf(attrib) >= 0) { + return false; + } + } + return true; + }); + const attribHTML = attributions.join(' | '); + if (attribHTML === this._attribHTML) + return; + this._attribHTML = attribHTML; + if (attributions.length) { + this._innerContainer.innerHTML = attribHTML; + this._container.classList.remove('mapboxgl-attrib-empty'); + } else { + this._container.classList.add('mapboxgl-attrib-empty'); + } + this._editLink = null; + } + _updateCompact() { + if (this._map.getCanvasContainer().offsetWidth <= 640) { + this._container.classList.add('mapboxgl-compact'); + } else { + this._container.classList.remove('mapboxgl-compact', 'mapboxgl-compact-show'); + } + } +} + +class LogoControl { + constructor() { + ref_properties.bindAll(['_updateLogo'], this); + ref_properties.bindAll(['_updateCompact'], this); + } + onAdd(map) { + this._map = map; + this._container = DOM.create('div', 'mapboxgl-ctrl'); + const anchor = DOM.create('a', 'mapboxgl-ctrl-logo'); + anchor.target = '_blank'; + anchor.rel = 'noopener nofollow'; + anchor.href = 'https://www.mapbox.com/'; + anchor.setAttribute('aria-label', this._map._getUIString('LogoControl.Title')); + anchor.setAttribute('rel', 'noopener nofollow'); + this._container.appendChild(anchor); + this._container.style.display = 'none'; + this._map.on('sourcedata', this._updateLogo); + this._updateLogo(); + this._map.on('resize', this._updateCompact); + this._updateCompact(); + return this._container; + } + onRemove() { + DOM.remove(this._container); + this._map.off('sourcedata', this._updateLogo); + this._map.off('resize', this._updateCompact); + } + getDefaultPosition() { + return 'bottom-left'; + } + _updateLogo(e) { + if (!e || e.sourceDataType === 'metadata') { + this._container.style.display = this._logoRequired() ? 'block' : 'none'; + } + } + _logoRequired() { + if (!this._map.style) + return; + const sourceCaches = this._map.style._sourceCaches; + if (Object.entries(sourceCaches).length === 0) + return true; + for (const id in sourceCaches) { + const source = sourceCaches[id].getSource(); + if (source.hasOwnProperty('mapbox_logo') && !source.mapbox_logo) { + return false; + } + } + return true; + } + _updateCompact() { + const containerChildren = this._container.children; + if (containerChildren.length) { + const anchor = containerChildren[0]; + if (this._map.getCanvasContainer().offsetWidth < 250) { + anchor.classList.add('mapboxgl-compact'); + } else { + anchor.classList.remove('mapboxgl-compact'); + } + } + } +} + +class TaskQueue { + constructor() { + this._queue = []; + this._id = 0; + this._cleared = false; + this._currentlyRunning = false; + } + add(callback) { + const id = ++this._id; + const queue = this._queue; + queue.push({ + callback, + id, + cancelled: false + }); + return id; + } + remove(id) { + const running = this._currentlyRunning; + const queue = running ? this._queue.concat(running) : this._queue; + for (const task of queue) { + if (task.id === id) { + task.cancelled = true; + return; + } + } + } + run(timeStamp = 0) { + const queue = this._currentlyRunning = this._queue; + this._queue = []; + for (const task of queue) { + if (task.cancelled) + continue; + task.callback(timeStamp); + if (this._cleared) + break; + } + this._cleared = false; + this._currentlyRunning = false; + } + clear() { + if (this._currentlyRunning) { + this._cleared = true; + } + this._queue = []; + } +} + +const defaultLocale = { + 'AttributionControl.ToggleAttribution': 'Toggle attribution', + 'AttributionControl.MapFeedback': 'Map feedback', + 'FullscreenControl.Enter': 'Enter fullscreen', + 'FullscreenControl.Exit': 'Exit fullscreen', + 'GeolocateControl.FindMyLocation': 'Find my location', + 'GeolocateControl.LocationNotAvailable': 'Location not available', + 'LogoControl.Title': 'Mapbox logo', + 'NavigationControl.ResetBearing': 'Reset bearing to north', + 'NavigationControl.ZoomIn': 'Zoom in', + 'NavigationControl.ZoomOut': 'Zoom out', + 'ScaleControl.Feet': 'ft', + 'ScaleControl.Meters': 'm', + 'ScaleControl.Kilometers': 'km', + 'ScaleControl.Miles': 'mi', + 'ScaleControl.NauticalMiles': 'nm' +}; + +const {HTMLImageElement, HTMLElement, ImageBitmap} = ref_properties.window; +const defaultMinZoom = -2; +const defaultMaxZoom = 22; +const defaultMinPitch = 0; +const defaultMaxPitch = 85; +const defaultOptions$1 = { + center: [ + 0, + 0 + ], + zoom: 0, + bearing: 0, + pitch: 0, + minZoom: defaultMinZoom, + maxZoom: defaultMaxZoom, + minPitch: defaultMinPitch, + maxPitch: defaultMaxPitch, + interactive: true, + scrollZoom: true, + boxZoom: true, + dragRotate: true, + dragPan: true, + keyboard: true, + doubleClickZoom: true, + touchZoomRotate: true, + touchPitch: true, + bearingSnap: 7, + clickTolerance: 3, + pitchWithRotate: true, + hash: false, + attributionControl: true, + failIfMajorPerformanceCaveat: false, + preserveDrawingBuffer: false, + trackResize: true, + optimizeForTerrain: true, + renderWorldCopies: true, + refreshExpiredTiles: true, + maxTileCacheSize: null, + localIdeographFontFamily: 'sans-serif', + localFontFamily: null, + transformRequest: null, + accessToken: null, + fadeDuration: 300, + crossSourceCollisions: true +}; +class Map extends Camera { + constructor(options) { + options = ref_properties.extend({}, defaultOptions$1, options); + if (options.minZoom != null && options.maxZoom != null && options.minZoom > options.maxZoom) { + throw new Error(`maxZoom must be greater than or equal to minZoom`); + } + if (options.minPitch != null && options.maxPitch != null && options.minPitch > options.maxPitch) { + throw new Error(`maxPitch must be greater than or equal to minPitch`); + } + if (options.minPitch != null && options.minPitch < defaultMinPitch) { + throw new Error(`minPitch must be greater than or equal to ${ defaultMinPitch }`); + } + if (options.maxPitch != null && options.maxPitch > defaultMaxPitch) { + throw new Error(`maxPitch must be less than or equal to ${ defaultMaxPitch }`); + } + const transform = new Transform(options.minZoom, options.maxZoom, options.minPitch, options.maxPitch, options.renderWorldCopies); + super(transform, options); + this._interactive = options.interactive; + this._maxTileCacheSize = options.maxTileCacheSize; + this._failIfMajorPerformanceCaveat = options.failIfMajorPerformanceCaveat; + this._preserveDrawingBuffer = options.preserveDrawingBuffer; + this._antialias = options.antialias; + this._trackResize = options.trackResize; + this._bearingSnap = options.bearingSnap; + this._refreshExpiredTiles = options.refreshExpiredTiles; + this._fadeDuration = options.fadeDuration; + this._isInitialLoad = true; + this._crossSourceCollisions = options.crossSourceCollisions; + this._crossFadingFactor = 1; + this._collectResourceTiming = options.collectResourceTiming; + this._optimizeForTerrain = options.optimizeForTerrain; + this._renderTaskQueue = new TaskQueue(); + this._controls = []; + this._mapId = ref_properties.uniqueId(); + this._locale = ref_properties.extend({}, defaultLocale, options.locale); + this._clickTolerance = options.clickTolerance; + this._requestManager = new ref_properties.RequestManager(options.transformRequest, options.accessToken); + if (typeof options.container === 'string') { + this._container = ref_properties.window.document.getElementById(options.container); + if (!this._container) { + throw new Error(`Container '${ options.container }' not found.`); + } + } else if (options.container instanceof HTMLElement) { + this._container = options.container; + } else { + throw new Error(`Invalid type: 'container' must be a String or HTMLElement.`); + } + if (options.maxBounds) { + this.setMaxBounds(options.maxBounds); + } + ref_properties.bindAll([ + '_onWindowOnline', + '_onWindowResize', + '_onMapScroll', + '_contextLost', + '_contextRestored' + ], this); + this._setupContainer(); + this._setupPainter(); + if (this.painter === undefined) { + throw new Error(`Failed to initialize WebGL.`); + } + this.on('move', () => this._update(false)); + this.on('moveend', () => this._update(false)); + this.on('zoom', () => this._update(true)); + if (typeof ref_properties.window !== 'undefined') { + ref_properties.window.addEventListener('online', this._onWindowOnline, false); + ref_properties.window.addEventListener('resize', this._onWindowResize, false); + ref_properties.window.addEventListener('orientationchange', this._onWindowResize, false); + } + this.handlers = new HandlerManager(this, options); + const hashName = typeof options.hash === 'string' && options.hash || undefined; + this._hash = options.hash && new Hash(hashName).addTo(this); + if (!this._hash || !this._hash._onHashChange()) { + this.jumpTo({ + center: options.center, + zoom: options.zoom, + bearing: options.bearing, + pitch: options.pitch + }); + if (options.bounds) { + this.resize(); + this.fitBounds(options.bounds, ref_properties.extend({}, options.fitBoundsOptions, { duration: 0 })); + } + } + this.resize(); + this._localFontFamily = options.localFontFamily; + this._localIdeographFontFamily = options.localIdeographFontFamily; + if (options.style) + this.setStyle(options.style, { + localFontFamily: this._localFontFamily, + localIdeographFontFamily: this._localIdeographFontFamily + }); + if (options.attributionControl) + this.addControl(new AttributionControl({ customAttribution: options.customAttribution })); + this._logoControl = new LogoControl(); + this.addControl(this._logoControl, options.logoPosition); + this.on('style.load', () => { + if (this.transform.unmodified) { + this.jumpTo(this.style.stylesheet); + } + }); + this.on('data', event => { + this._update(event.dataType === 'style'); + this.fire(new ref_properties.Event(`${ event.dataType }data`, event)); + }); + this.on('dataloading', event => { + this.fire(new ref_properties.Event(`${ event.dataType }dataloading`, event)); + }); + } + _getMapId() { + return this._mapId; + } + addControl(control, position) { + if (position === undefined) { + if (control.getDefaultPosition) { + position = control.getDefaultPosition(); + } else { + position = 'top-right'; + } + } + if (!control || !control.onAdd) { + return this.fire(new ref_properties.ErrorEvent(new Error('Invalid argument to map.addControl(). Argument must be a control with onAdd and onRemove methods.'))); + } + const controlElement = control.onAdd(this); + this._controls.push(control); + const positionContainer = this._controlPositions[position]; + if (position.indexOf('bottom') !== -1) { + positionContainer.insertBefore(controlElement, positionContainer.firstChild); + } else { + positionContainer.appendChild(controlElement); + } + return this; + } + removeControl(control) { + if (!control || !control.onRemove) { + return this.fire(new ref_properties.ErrorEvent(new Error('Invalid argument to map.removeControl(). Argument must be a control with onAdd and onRemove methods.'))); + } + const ci = this._controls.indexOf(control); + if (ci > -1) + this._controls.splice(ci, 1); + control.onRemove(this); + return this; + } + hasControl(control) { + return this._controls.indexOf(control) > -1; + } + resize(eventData) { + const dimensions = this._containerDimensions(); + const width = dimensions[0]; + const height = dimensions[1]; + this._resizeCanvas(width, height); + this.transform.resize(width, height); + this.painter.resize(width, height); + const fireMoving = !this._moving; + if (fireMoving) { + this.stop(); + this.fire(new ref_properties.Event('movestart', eventData)).fire(new ref_properties.Event('move', eventData)); + } + this.fire(new ref_properties.Event('resize', eventData)); + if (fireMoving) + this.fire(new ref_properties.Event('moveend', eventData)); + return this; + } + getBounds() { + return this.transform.getBounds(); + } + getMaxBounds() { + return this.transform.getMaxBounds(); + } + setMaxBounds(bounds) { + this.transform.setMaxBounds(ref_properties.LngLatBounds.convert(bounds)); + return this._update(); + } + setMinZoom(minZoom) { + minZoom = minZoom === null || minZoom === undefined ? defaultMinZoom : minZoom; + if (minZoom >= defaultMinZoom && minZoom <= this.transform.maxZoom) { + this.transform.minZoom = minZoom; + this._update(); + if (this.getZoom() < minZoom) + this.setZoom(minZoom); + return this; + } else + throw new Error(`minZoom must be between ${ defaultMinZoom } and the current maxZoom, inclusive`); + } + getMinZoom() { + return this.transform.minZoom; + } + setMaxZoom(maxZoom) { + maxZoom = maxZoom === null || maxZoom === undefined ? defaultMaxZoom : maxZoom; + if (maxZoom >= this.transform.minZoom) { + this.transform.maxZoom = maxZoom; + this._update(); + if (this.getZoom() > maxZoom) + this.setZoom(maxZoom); + return this; + } else + throw new Error(`maxZoom must be greater than the current minZoom`); + } + getMaxZoom() { + return this.transform.maxZoom; + } + setMinPitch(minPitch) { + minPitch = minPitch === null || minPitch === undefined ? defaultMinPitch : minPitch; + if (minPitch < defaultMinPitch) { + throw new Error(`minPitch must be greater than or equal to ${ defaultMinPitch }`); + } + if (minPitch >= defaultMinPitch && minPitch <= this.transform.maxPitch) { + this.transform.minPitch = minPitch; + this._update(); + if (this.getPitch() < minPitch) + this.setPitch(minPitch); + return this; + } else + throw new Error(`minPitch must be between ${ defaultMinPitch } and the current maxPitch, inclusive`); + } + getMinPitch() { + return this.transform.minPitch; + } + setMaxPitch(maxPitch) { + maxPitch = maxPitch === null || maxPitch === undefined ? defaultMaxPitch : maxPitch; + if (maxPitch > defaultMaxPitch) { + throw new Error(`maxPitch must be less than or equal to ${ defaultMaxPitch }`); + } + if (maxPitch >= this.transform.minPitch) { + this.transform.maxPitch = maxPitch; + this._update(); + if (this.getPitch() > maxPitch) + this.setPitch(maxPitch); + return this; + } else + throw new Error(`maxPitch must be greater than the current minPitch`); + } + getMaxPitch() { + return this.transform.maxPitch; + } + getRenderWorldCopies() { + return this.transform.renderWorldCopies; + } + setRenderWorldCopies(renderWorldCopies) { + this.transform.renderWorldCopies = renderWorldCopies; + return this._update(); + } + project(lnglat) { + return this.transform.locationPoint3D(ref_properties.LngLat.convert(lnglat)); + } + unproject(point) { + return this.transform.pointLocation3D(ref_properties.Point.convert(point)); + } + isMoving() { + return this._moving || this.handlers && this.handlers.isMoving(); + } + isZooming() { + return this._zooming || this.handlers && this.handlers.isZooming(); + } + isRotating() { + return this._rotating || this.handlers && this.handlers.isRotating(); + } + _createDelegatedListener(type, layerId, listener) { + if (type === 'mouseenter' || type === 'mouseover') { + let mousein = false; + const mousemove = e => { + const features = this.getLayer(layerId) ? this.queryRenderedFeatures(e.point, { layers: [layerId] }) : []; + if (!features.length) { + mousein = false; + } else if (!mousein) { + mousein = true; + listener.call(this, new MapMouseEvent(type, this, e.originalEvent, { features })); + } + }; + const mouseout = () => { + mousein = false; + }; + return { + layer: layerId, + listener, + delegates: { + mousemove, + mouseout + } + }; + } else if (type === 'mouseleave' || type === 'mouseout') { + let mousein = false; + const mousemove = e => { + const features = this.getLayer(layerId) ? this.queryRenderedFeatures(e.point, { layers: [layerId] }) : []; + if (features.length) { + mousein = true; + } else if (mousein) { + mousein = false; + listener.call(this, new MapMouseEvent(type, this, e.originalEvent)); + } + }; + const mouseout = e => { + if (mousein) { + mousein = false; + listener.call(this, new MapMouseEvent(type, this, e.originalEvent)); + } + }; + return { + layer: layerId, + listener, + delegates: { + mousemove, + mouseout + } + }; + } else { + const delegate = e => { + const features = this.getLayer(layerId) ? this.queryRenderedFeatures(e.point, { layers: [layerId] }) : []; + if (features.length) { + e.features = features; + listener.call(this, e); + delete e.features; + } + }; + return { + layer: layerId, + listener, + delegates: { [type]: delegate } + }; + } + } + on(type, layerId, listener) { + if (listener === undefined) { + return super.on(type, layerId); + } + const delegatedListener = this._createDelegatedListener(type, layerId, listener); + this._delegatedListeners = this._delegatedListeners || {}; + this._delegatedListeners[type] = this._delegatedListeners[type] || []; + this._delegatedListeners[type].push(delegatedListener); + for (const event in delegatedListener.delegates) { + this.on(event, delegatedListener.delegates[event]); + } + return this; + } + once(type, layerId, listener) { + if (listener === undefined) { + return super.once(type, layerId); + } + const delegatedListener = this._createDelegatedListener(type, layerId, listener); + for (const event in delegatedListener.delegates) { + this.once(event, delegatedListener.delegates[event]); + } + return this; + } + off(type, layerId, listener) { + if (listener === undefined) { + return super.off(type, layerId); + } + const removeDelegatedListener = delegatedListeners => { + const listeners = delegatedListeners[type]; + for (let i = 0; i < listeners.length; i++) { + const delegatedListener = listeners[i]; + if (delegatedListener.layer === layerId && delegatedListener.listener === listener) { + for (const event in delegatedListener.delegates) { + this.off(event, delegatedListener.delegates[event]); + } + listeners.splice(i, 1); + return this; + } + } + }; + if (this._delegatedListeners && this._delegatedListeners[type]) { + removeDelegatedListener(this._delegatedListeners); + } + return this; + } + queryRenderedFeatures(geometry, options) { + if (!this.style) { + return []; + } + if (options === undefined && geometry !== undefined && !(geometry instanceof ref_properties.Point) && !Array.isArray(geometry)) { + options = geometry; + geometry = undefined; + } + options = options || {}; + geometry = geometry || [ + [ + 0, + 0 + ], + [ + this.transform.width, + this.transform.height + ] + ]; + return this.style.queryRenderedFeatures(geometry, options, this.transform); + } + querySourceFeatures(sourceId, parameters) { + return this.style.querySourceFeatures(sourceId, parameters); + } + setStyle(style, options) { + options = ref_properties.extend({}, { + localIdeographFontFamily: this._localIdeographFontFamily, + localFontFamily: this._localFontFamily + }, options); + if (options.diff !== false && options.localIdeographFontFamily === this._localIdeographFontFamily && options.localFontFamily === this._localFontFamily && this.style && style) { + this._diffStyle(style, options); + return this; + } else { + this._localIdeographFontFamily = options.localIdeographFontFamily; + this._localFontFamily = options.localFontFamily; + return this._updateStyle(style, options); + } + } + _getUIString(key) { + const str = this._locale[key]; + if (str == null) { + throw new Error(`Missing UI string '${ key }'`); + } + return str; + } + _updateStyle(style, options) { + if (this.style) { + this.style.setEventedParent(null); + this.style._remove(); + delete this.style; + } + if (style) { + this.style = new Style(this, options || {}); + this.style.setEventedParent(this, { style: this.style }); + if (typeof style === 'string') { + this.style.loadURL(style); + } else { + this.style.loadJSON(style); + } + } + this._updateTerrain(); + return this; + } + _lazyInitEmptyStyle() { + if (!this.style) { + this.style = new Style(this, {}); + this.style.setEventedParent(this, { style: this.style }); + this.style.loadEmpty(); + } + } + _diffStyle(style, options) { + if (typeof style === 'string') { + const url = this._requestManager.normalizeStyleURL(style); + const request = this._requestManager.transformRequest(url, ref_properties.ResourceType.Style); + ref_properties.getJSON(request, (error, json) => { + if (error) { + this.fire(new ref_properties.ErrorEvent(error)); + } else if (json) { + this._updateDiff(json, options); + } + }); + } else if (typeof style === 'object') { + this._updateDiff(style, options); + } + } + _updateDiff(style, options) { + try { + if (this.style.setState(style)) { + this._update(true); + } + } catch (e) { + ref_properties.warnOnce(`Unable to perform style diff: ${ e.message || e.error || e }. Rebuilding the style from scratch.`); + this._updateStyle(style, options); + } + } + getStyle() { + if (this.style) { + return this.style.serialize(); + } + } + isStyleLoaded() { + if (!this.style) + return ref_properties.warnOnce('There is no style added to the map.'); + return this.style.loaded(); + } + addSource(id, source) { + this._lazyInitEmptyStyle(); + this.style.addSource(id, source); + return this._update(true); + } + isSourceLoaded(id) { + const sourceCaches = this.style && this.style._getSourceCaches(id); + if (sourceCaches.length === 0) { + this.fire(new ref_properties.ErrorEvent(new Error(`There is no source with ID '${ id }'`))); + return; + } + return sourceCaches.every(sc => sc.loaded()); + } + areTilesLoaded() { + const sources = this.style && this.style._sourceCaches; + for (const id in sources) { + const source = sources[id]; + const tiles = source._tiles; + for (const t in tiles) { + const tile = tiles[t]; + if (!(tile.state === 'loaded' || tile.state === 'errored')) + return false; + } + } + return true; + } + addSourceType(name, SourceType, callback) { + this._lazyInitEmptyStyle(); + return this.style.addSourceType(name, SourceType, callback); + } + removeSource(id) { + this.style.removeSource(id); + this._updateTerrain(); + return this._update(true); + } + getSource(id) { + return this.style.getSource(id); + } + addImage(id, image, {pixelRatio = 1, sdf = false, stretchX, stretchY, content} = {}) { + this._lazyInitEmptyStyle(); + const version = 0; + if (image instanceof HTMLImageElement || ImageBitmap && image instanceof ImageBitmap) { + const {width, height, data} = ref_properties.browser.getImageData(image); + this.style.addImage(id, { + data: new ref_properties.RGBAImage({ + width, + height + }, data), + pixelRatio, + stretchX, + stretchY, + content, + sdf, + version + }); + } else if (image.width === undefined || image.height === undefined) { + return this.fire(new ref_properties.ErrorEvent(new Error('Invalid arguments to map.addImage(). The second argument must be an `HTMLImageElement`, `ImageData`, `ImageBitmap`, ' + 'or object with `width`, `height`, and `data` properties with the same format as `ImageData`'))); + } else { + const {width, height, data} = image; + const userImage = image; + this.style.addImage(id, { + data: new ref_properties.RGBAImage({ + width, + height + }, new Uint8Array(data)), + pixelRatio, + stretchX, + stretchY, + content, + sdf, + version, + userImage + }); + if (userImage.onAdd) { + userImage.onAdd(this, id); + } + } + } + updateImage(id, image) { + const existingImage = this.style.getImage(id); + if (!existingImage) { + return this.fire(new ref_properties.ErrorEvent(new Error('The map has no image with that id. If you are adding a new image use `map.addImage(...)` instead.'))); + } + const imageData = image instanceof HTMLImageElement || ImageBitmap && image instanceof ImageBitmap ? ref_properties.browser.getImageData(image) : image; + const {width, height, data} = imageData; + if (width === undefined || height === undefined) { + return this.fire(new ref_properties.ErrorEvent(new Error('Invalid arguments to map.updateImage(). The second argument must be an `HTMLImageElement`, `ImageData`, `ImageBitmap`, ' + 'or object with `width`, `height`, and `data` properties with the same format as `ImageData`'))); + } + if (width !== existingImage.data.width || height !== existingImage.data.height) { + return this.fire(new ref_properties.ErrorEvent(new Error('The width and height of the updated image must be that same as the previous version of the image'))); + } + const copy = !(image instanceof HTMLImageElement || ImageBitmap && image instanceof ImageBitmap); + existingImage.data.replace(data, copy); + this.style.updateImage(id, existingImage); + } + hasImage(id) { + if (!id) { + this.fire(new ref_properties.ErrorEvent(new Error('Missing required image id'))); + return false; + } + return !!this.style.getImage(id); + } + removeImage(id) { + this.style.removeImage(id); + } + loadImage(url, callback) { + ref_properties.getImage(this._requestManager.transformRequest(url, ref_properties.ResourceType.Image), callback); + } + listImages() { + return this.style.listImages(); + } + addLayer(layer, beforeId) { + this._lazyInitEmptyStyle(); + this.style.addLayer(layer, beforeId); + return this._update(true); + } + moveLayer(id, beforeId) { + this.style.moveLayer(id, beforeId); + return this._update(true); + } + removeLayer(id) { + this.style.removeLayer(id); + return this._update(true); + } + getLayer(id) { + return this.style.getLayer(id); + } + setLayerZoomRange(layerId, minzoom, maxzoom) { + this.style.setLayerZoomRange(layerId, minzoom, maxzoom); + return this._update(true); + } + setFilter(layerId, filter, options = {}) { + this.style.setFilter(layerId, filter, options); + return this._update(true); + } + getFilter(layerId) { + return this.style.getFilter(layerId); + } + setPaintProperty(layerId, name, value, options = {}) { + this.style.setPaintProperty(layerId, name, value, options); + return this._update(true); + } + getPaintProperty(layerId, name) { + return this.style.getPaintProperty(layerId, name); + } + setLayoutProperty(layerId, name, value, options = {}) { + this.style.setLayoutProperty(layerId, name, value, options); + return this._update(true); + } + getLayoutProperty(layerId, name) { + return this.style.getLayoutProperty(layerId, name); + } + setLight(light, options = {}) { + this._lazyInitEmptyStyle(); + this.style.setLight(light, options); + return this._update(true); + } + getLight() { + return this.style.getLight(); + } + setTerrain(terrain) { + this._lazyInitEmptyStyle(); + this.style.setTerrain(terrain); + return this._update(true); + } + setFeatureState(feature, state) { + this.style.setFeatureState(feature, state); + return this._update(); + } + removeFeatureState(target, key) { + this.style.removeFeatureState(target, key); + return this._update(); + } + getFeatureState(feature) { + return this.style.getFeatureState(feature); + } + getContainer() { + return this._container; + } + getCanvasContainer() { + return this._canvasContainer; + } + getCanvas() { + return this._canvas; + } + _containerDimensions() { + let width = 0; + let height = 0; + if (this._container) { + width = this._container.clientWidth || 400; + height = this._container.clientHeight || 300; + } + return [ + width, + height + ]; + } + _detectMissingCSS() { + const computedColor = ref_properties.window.getComputedStyle(this._missingCSSCanary).getPropertyValue('background-color'); + if (computedColor !== 'rgb(250, 128, 114)') { + ref_properties.warnOnce('This page appears to be missing CSS declarations for ' + 'Mapbox GL JS, which may cause the map to display incorrectly. ' + 'Please ensure your page includes mapbox-gl.css, as described ' + 'in https://www.mapbox.com/mapbox-gl-js/api/.'); + } + } + _setupContainer() { + const container = this._container; + container.classList.add('mapboxgl-map'); + const missingCSSCanary = this._missingCSSCanary = DOM.create('div', 'mapboxgl-canary', container); + missingCSSCanary.style.visibility = 'hidden'; + this._detectMissingCSS(); + const canvasContainer = this._canvasContainer = DOM.create('div', 'mapboxgl-canvas-container', container); + if (this._interactive) { + canvasContainer.classList.add('mapboxgl-interactive'); + } + this._canvas = DOM.create('canvas', 'mapboxgl-canvas', canvasContainer); + this._canvas.addEventListener('webglcontextlost', this._contextLost, false); + this._canvas.addEventListener('webglcontextrestored', this._contextRestored, false); + this._canvas.setAttribute('tabindex', '0'); + this._canvas.setAttribute('aria-label', 'Map'); + this._canvas.setAttribute('role', 'region'); + const dimensions = this._containerDimensions(); + this._resizeCanvas(dimensions[0], dimensions[1]); + const controlContainer = this._controlContainer = DOM.create('div', 'mapboxgl-control-container', container); + const positions = this._controlPositions = {}; + [ + 'top-left', + 'top-right', + 'bottom-left', + 'bottom-right' + ].forEach(positionName => { + positions[positionName] = DOM.create('div', `mapboxgl-ctrl-${ positionName }`, controlContainer); + }); + this._container.addEventListener('scroll', this._onMapScroll, false); + } + _resizeCanvas(width, height) { + const pixelRatio = ref_properties.browser.devicePixelRatio || 1; + this._canvas.width = pixelRatio * width; + this._canvas.height = pixelRatio * height; + this._canvas.style.width = `${ width }px`; + this._canvas.style.height = `${ height }px`; + } + _setupPainter() { + const attributes = ref_properties.extend({}, supported.webGLContextAttributes, { + failIfMajorPerformanceCaveat: this._failIfMajorPerformanceCaveat, + preserveDrawingBuffer: this._preserveDrawingBuffer, + antialias: this._antialias || false + }); + const gl = this._canvas.getContext('webgl', attributes) || this._canvas.getContext('experimental-webgl', attributes); + if (!gl) { + this.fire(new ref_properties.ErrorEvent(new Error('Failed to initialize WebGL'))); + return; + } + this.painter = new Painter(gl, this.transform); + this.on('data', event => { + if (event.dataType === 'source') { + this.painter.setTileLoadedFlag(true); + } + }); + ref_properties.webpSupported.testSupport(gl); + } + _contextLost(event) { + event.preventDefault(); + if (this._frame) { + this._frame.cancel(); + this._frame = null; + } + this.fire(new ref_properties.Event('webglcontextlost', { originalEvent: event })); + } + _contextRestored(event) { + this._setupPainter(); + this.resize(); + this._update(); + this.fire(new ref_properties.Event('webglcontextrestored', { originalEvent: event })); + } + _onMapScroll(event) { + if (event.target !== this._container) + return; + this._container.scrollTop = 0; + this._container.scrollLeft = 0; + return false; + } + loaded() { + return !this._styleDirty && !this._sourcesDirty && !!this.style && this.style.loaded(); + } + _update(updateStyle) { + if (!this.style) + return this; + this._styleDirty = this._styleDirty || updateStyle; + this._sourcesDirty = true; + this.triggerRepaint(); + return this; + } + _requestRenderFrame(callback) { + this._update(); + return this._renderTaskQueue.add(callback); + } + _cancelRenderFrame(id) { + this._renderTaskQueue.remove(id); + } + _render(paintStartTimeStamp) { + let gpuTimer, frameStartTime = 0; + const extTimerQuery = this.painter.context.extTimerQuery; + if (this.listens('gpu-timing-frame')) { + gpuTimer = extTimerQuery.createQueryEXT(); + extTimerQuery.beginQueryEXT(extTimerQuery.TIME_ELAPSED_EXT, gpuTimer); + frameStartTime = ref_properties.browser.now(); + } + this.painter.context.setDirty(); + this.painter.setBaseState(); + this._renderTaskQueue.run(paintStartTimeStamp); + if (this._removed) + return; + let crossFading = false; + const fadeDuration = this._isInitialLoad ? 0 : this._fadeDuration; + if (this.style && this._styleDirty) { + this._styleDirty = false; + const zoom = this.transform.zoom; + const now = ref_properties.browser.now(); + this.style.zoomHistory.update(zoom, now); + const parameters = new ref_properties.EvaluationParameters(zoom, { + now, + fadeDuration, + zoomHistory: this.style.zoomHistory, + transition: this.style.getTransition() + }); + const factor = parameters.crossFadingFactor(); + if (factor !== 1 || factor !== this._crossFadingFactor) { + crossFading = true; + this._crossFadingFactor = factor; + } + this.style.update(parameters); + } + if (this.style && this._sourcesDirty) { + this._sourcesDirty = false; + this._updateTerrain(); + this.style._updateSources(this.transform); + } + this._placementDirty = this.style && this.style._updatePlacement(this.painter.transform, this.showCollisionBoxes, fadeDuration, this._crossSourceCollisions); + this.painter.render(this.style, { + showTileBoundaries: this.showTileBoundaries, + showOverdrawInspector: this._showOverdrawInspector, + showQueryGeometry: !!this._showQueryGeometry, + rotating: this.isRotating(), + zooming: this.isZooming(), + moving: this.isMoving(), + fadeDuration, + isInitialLoad: this._isInitialLoad, + showPadding: this.showPadding, + gpuTiming: !!this.listens('gpu-timing-layer'), + speedIndexTiming: this.speedIndexTiming + }); + this.fire(new ref_properties.Event('render')); + if (this.loaded() && !this._loaded) { + this._loaded = true; + this.fire(new ref_properties.Event('load')); + } + if (this.style && (this.style.hasTransitions() || crossFading)) { + this._styleDirty = true; + } + if (this.style && !this._placementDirty) { + this.style._releaseSymbolFadeTiles(); + } + if (this.listens('gpu-timing-frame')) { + const renderCPUTime = ref_properties.browser.now() - frameStartTime; + extTimerQuery.endQueryEXT(extTimerQuery.TIME_ELAPSED_EXT, gpuTimer); + setTimeout(() => { + const renderGPUTime = extTimerQuery.getQueryObjectEXT(gpuTimer, extTimerQuery.QUERY_RESULT_EXT) / (1000 * 1000); + extTimerQuery.deleteQueryEXT(gpuTimer); + this.fire(new ref_properties.Event('gpu-timing-frame', { + cpuTime: renderCPUTime, + gpuTime: renderGPUTime + })); + }, 50); + } + if (this.listens('gpu-timing-layer')) { + const frameLayerQueries = this.painter.collectGpuTimers(); + setTimeout(() => { + const renderedLayerTimes = this.painter.queryGpuTimers(frameLayerQueries); + this.fire(new ref_properties.Event('gpu-timing-layer', { layerTimes: renderedLayerTimes })); + }, 50); + } + const somethingDirty = this._sourcesDirty || this._styleDirty || this._placementDirty; + if (somethingDirty || this._repaint) { + this.triggerRepaint(); + } else { + this._triggerFrame(false); + if (!this.isMoving() && this.loaded()) { + this.fire(new ref_properties.Event('idle')); + if (this._isInitialLoad) { + this._authenticate(); + } + this._isInitialLoad = false; + if (this.speedIndexTiming) { + const speedIndexNumber = this._calculateSpeedIndex(); + this.fire(new ref_properties.Event('speedindexcompleted', { speedIndex: speedIndexNumber })); + this.speedIndexTiming = false; + } + } + } + if (this._loaded && !this._fullyLoaded && !somethingDirty) { + this._fullyLoaded = true; + } + return this; + } + _authenticate() { + ref_properties.getMapSessionAPI(this._getMapId(), this._requestManager._skuToken, this._requestManager._customAccessToken, err => { + if (err) { + if (err.message === ref_properties.AUTH_ERR_MSG || err.status === 401) { + console.error('Error: A valid Mapbox access token is required to use Mapbox GL JS. To create an account or a new access token, visit https://account.mapbox.com/'); + ref_properties.browser.setErrorState(); + const gl = this.painter.context.gl; + if (this._logoControl instanceof LogoControl) { + this._logoControl._updateLogo(); + } + if (gl) + gl.clear(gl.DEPTH_BUFFER_BIT | gl.COLOR_BUFFER_BIT | gl.STENCIL_BUFFER_BIT); + } + } + }); + ref_properties.postMapLoadEvent(this._getMapId(), this._requestManager._skuToken, this._requestManager._customAccessToken, () => { + }); + } + _updateTerrain() { + this.painter.updateTerrain(this.style, this.isMoving() || this.isRotating() || this.isZooming()); + } + _calculateSpeedIndex() { + const finalFrame = this.painter.canvasCopy(); + const canvasCopyInstances = this.painter.getCanvasCopiesAndTimestamps(); + canvasCopyInstances.timeStamps.push(performance.now()); + const gl = this.painter.context.gl; + const framebuffer = gl.createFramebuffer(); + gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer); + function read(texture) { + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0); + const pixels = new Uint8Array(gl.drawingBufferWidth * gl.drawingBufferHeight * 4); + gl.readPixels(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight, gl.RGBA, gl.UNSIGNED_BYTE, pixels); + return pixels; + } + return this._canvasPixelComparison(read(finalFrame), canvasCopyInstances.canvasCopies.map(read), canvasCopyInstances.timeStamps); + } + _canvasPixelComparison(finalFrame, allFrames, timeStamps) { + let finalScore = timeStamps[1] - timeStamps[0]; + const numPixels = finalFrame.length / 4; + for (let i = 0; i < allFrames.length; i++) { + const frame = allFrames[i]; + let cnt = 0; + for (let j = 0; j < frame.length; j += 4) { + if (frame[j] === finalFrame[j] && frame[j + 1] === finalFrame[j + 1] && frame[j + 2] === finalFrame[j + 2] && frame[j + 3] === finalFrame[j + 3]) { + cnt = cnt + 1; + } + } + const interval = timeStamps[i + 2] - timeStamps[i + 1]; + const visualCompletness = cnt / numPixels; + finalScore += interval * (1 - visualCompletness); + } + return finalScore; + } + remove() { + if (this._hash) + this._hash.remove(); + for (const control of this._controls) + control.onRemove(this); + this._controls = []; + if (this._frame) { + this._frame.cancel(); + this._frame = null; + } + this._renderTaskQueue.clear(); + this.painter.destroy(); + this.handlers.destroy(); + delete this.handlers; + this.setStyle(null); + if (typeof ref_properties.window !== 'undefined') { + ref_properties.window.removeEventListener('resize', this._onWindowResize, false); + ref_properties.window.removeEventListener('orientationchange', this._onWindowResize, false); + ref_properties.window.removeEventListener('online', this._onWindowOnline, false); + } + const extension = this.painter.context.gl.getExtension('WEBGL_lose_context'); + if (extension) + extension.loseContext(); + removeNode(this._canvasContainer); + removeNode(this._controlContainer); + removeNode(this._missingCSSCanary); + this._container.classList.remove('mapboxgl-map'); + this._removed = true; + this.fire(new ref_properties.Event('remove')); + } + triggerRepaint() { + this._triggerFrame(true); + } + _triggerFrame(render) { + this._renderNextFrame = this._renderNextFrame || render; + if (this.style && !this._frame) { + this._frame = ref_properties.browser.frame(paintStartTimeStamp => { + const isRenderFrame = !!this._renderNextFrame; + this._frame = null; + this._renderNextFrame = null; + if (isRenderFrame) { + this._render(paintStartTimeStamp); + } + }); + } + } + _onWindowOnline() { + this._update(); + } + _onWindowResize(event) { + if (this._trackResize) { + this.resize({ originalEvent: event })._update(); + } + } + get showTileBoundaries() { + return !!this._showTileBoundaries; + } + set showTileBoundaries(value) { + if (this._showTileBoundaries === value) + return; + this._showTileBoundaries = value; + this._update(); + } + get speedIndexTiming() { + return !!this._speedIndexTiming; + } + set speedIndexTiming(value) { + if (this._speedIndexTiming === value) + return; + this._speedIndexTiming = value; + this._update(); + } + get showPadding() { + return !!this._showPadding; + } + set showPadding(value) { + if (this._showPadding === value) + return; + this._showPadding = value; + this._update(); + } + get showCollisionBoxes() { + return !!this._showCollisionBoxes; + } + set showCollisionBoxes(value) { + if (this._showCollisionBoxes === value) + return; + this._showCollisionBoxes = value; + if (value) { + this.style._generateCollisionBoxes(); + } else { + this._update(); + } + } + get showOverdrawInspector() { + return !!this._showOverdrawInspector; + } + set showOverdrawInspector(value) { + if (this._showOverdrawInspector === value) + return; + this._showOverdrawInspector = value; + this._update(); + } + get repaint() { + return !!this._repaint; + } + set repaint(value) { + if (this._repaint !== value) { + this._repaint = value; + this.triggerRepaint(); + } + } + get vertices() { + return !!this._vertices; + } + set vertices(value) { + this._vertices = value; + this._update(); + } + _setCacheLimits(limit, checkThreshold) { + ref_properties.setCacheLimits(limit, checkThreshold); + } + get version() { + return ref_properties.version; + } +} +function removeNode(node) { + if (node.parentNode) { + node.parentNode.removeChild(node); + } +} + +const defaultOptions$2 = { + showCompass: true, + showZoom: true, + visualizePitch: false +}; +class NavigationControl { + constructor(options) { + this.options = ref_properties.extend({}, defaultOptions$2, options); + this._container = DOM.create('div', 'mapboxgl-ctrl mapboxgl-ctrl-group'); + this._container.addEventListener('contextmenu', e => e.preventDefault()); + if (this.options.showZoom) { + ref_properties.bindAll([ + '_setButtonTitle', + '_updateZoomButtons' + ], this); + this._zoomInButton = this._createButton('mapboxgl-ctrl-zoom-in', e => this._map.zoomIn({}, { originalEvent: e })); + DOM.create('span', `mapboxgl-ctrl-icon`, this._zoomInButton).setAttribute('aria-hidden', true); + this._zoomOutButton = this._createButton('mapboxgl-ctrl-zoom-out', e => this._map.zoomOut({}, { originalEvent: e })); + DOM.create('span', `mapboxgl-ctrl-icon`, this._zoomOutButton).setAttribute('aria-hidden', true); + } + if (this.options.showCompass) { + ref_properties.bindAll(['_rotateCompassArrow'], this); + this._compass = this._createButton('mapboxgl-ctrl-compass', e => { + if (this.options.visualizePitch) { + this._map.resetNorthPitch({}, { originalEvent: e }); + } else { + this._map.resetNorth({}, { originalEvent: e }); + } + }); + this._compassIcon = DOM.create('span', 'mapboxgl-ctrl-icon', this._compass); + this._compassIcon.setAttribute('aria-hidden', true); + } + } + _updateZoomButtons() { + const zoom = this._map.getZoom(); + const isMax = zoom === this._map.getMaxZoom(); + const isMin = zoom === this._map.getMinZoom(); + this._zoomInButton.disabled = isMax; + this._zoomOutButton.disabled = isMin; + this._zoomInButton.setAttribute('aria-disabled', isMax.toString()); + this._zoomOutButton.setAttribute('aria-disabled', isMin.toString()); + } + _rotateCompassArrow() { + const rotate = this.options.visualizePitch ? `scale(${ 1 / Math.pow(Math.cos(this._map.transform.pitch * (Math.PI / 180)), 0.5) }) rotateX(${ this._map.transform.pitch }deg) rotateZ(${ this._map.transform.angle * (180 / Math.PI) }deg)` : `rotate(${ this._map.transform.angle * (180 / Math.PI) }deg)`; + this._compassIcon.style.transform = rotate; + } + onAdd(map) { + this._map = map; + if (this.options.showZoom) { + this._setButtonTitle(this._zoomInButton, 'ZoomIn'); + this._setButtonTitle(this._zoomOutButton, 'ZoomOut'); + this._map.on('zoom', this._updateZoomButtons); + this._updateZoomButtons(); + } + if (this.options.showCompass) { + this._setButtonTitle(this._compass, 'ResetBearing'); + if (this.options.visualizePitch) { + this._map.on('pitch', this._rotateCompassArrow); + } + this._map.on('rotate', this._rotateCompassArrow); + this._rotateCompassArrow(); + this._handler = new MouseRotateWrapper(this._map, this._compass, this.options.visualizePitch); + } + return this._container; + } + onRemove() { + DOM.remove(this._container); + if (this.options.showZoom) { + this._map.off('zoom', this._updateZoomButtons); + } + if (this.options.showCompass) { + if (this.options.visualizePitch) { + this._map.off('pitch', this._rotateCompassArrow); + } + this._map.off('rotate', this._rotateCompassArrow); + this._handler.off(); + delete this._handler; + } + delete this._map; + } + _createButton(className, fn) { + const a = DOM.create('button', className, this._container); + a.type = 'button'; + a.addEventListener('click', fn); + return a; + } + _setButtonTitle(button, title) { + const str = this._map._getUIString(`NavigationControl.${ title }`); + button.title = str; + button.setAttribute('aria-label', str); + } +} +class MouseRotateWrapper { + constructor(map, element, pitch = false) { + this._clickTolerance = 10; + this.element = element; + this.mouseRotate = new MouseRotateHandler({ clickTolerance: map.dragRotate._mouseRotate._clickTolerance }); + this.map = map; + if (pitch) + this.mousePitch = new MousePitchHandler({ clickTolerance: map.dragRotate._mousePitch._clickTolerance }); + ref_properties.bindAll([ + 'mousedown', + 'mousemove', + 'mouseup', + 'touchstart', + 'touchmove', + 'touchend', + 'reset' + ], this); + DOM.addEventListener(element, 'mousedown', this.mousedown); + DOM.addEventListener(element, 'touchstart', this.touchstart, { passive: false }); + DOM.addEventListener(element, 'touchmove', this.touchmove); + DOM.addEventListener(element, 'touchend', this.touchend); + DOM.addEventListener(element, 'touchcancel', this.reset); + } + down(e, point) { + this.mouseRotate.mousedown(e, point); + if (this.mousePitch) + this.mousePitch.mousedown(e, point); + DOM.disableDrag(); + } + move(e, point) { + const map = this.map; + const r = this.mouseRotate.mousemoveWindow(e, point); + if (r && r.bearingDelta) + map.setBearing(map.getBearing() + r.bearingDelta); + if (this.mousePitch) { + const p = this.mousePitch.mousemoveWindow(e, point); + if (p && p.pitchDelta) + map.setPitch(map.getPitch() + p.pitchDelta); + } + } + off() { + const element = this.element; + DOM.removeEventListener(element, 'mousedown', this.mousedown); + DOM.removeEventListener(element, 'touchstart', this.touchstart, { passive: false }); + DOM.removeEventListener(element, 'touchmove', this.touchmove); + DOM.removeEventListener(element, 'touchend', this.touchend); + DOM.removeEventListener(element, 'touchcancel', this.reset); + this.offTemp(); + } + offTemp() { + DOM.enableDrag(); + DOM.removeEventListener(ref_properties.window, 'mousemove', this.mousemove); + DOM.removeEventListener(ref_properties.window, 'mouseup', this.mouseup); + } + mousedown(e) { + this.down(ref_properties.extend({}, e, { + ctrlKey: true, + preventDefault: () => e.preventDefault() + }), DOM.mousePos(this.element, e)); + DOM.addEventListener(ref_properties.window, 'mousemove', this.mousemove); + DOM.addEventListener(ref_properties.window, 'mouseup', this.mouseup); + } + mousemove(e) { + this.move(e, DOM.mousePos(this.element, e)); + } + mouseup(e) { + this.mouseRotate.mouseupWindow(e); + if (this.mousePitch) + this.mousePitch.mouseupWindow(e); + this.offTemp(); + } + touchstart(e) { + if (e.targetTouches.length !== 1) { + this.reset(); + } else { + this._startPos = this._lastPos = DOM.touchPos(this.element, e.targetTouches)[0]; + this.down({ + type: 'mousedown', + button: 0, + ctrlKey: true, + preventDefault: () => e.preventDefault() + }, this._startPos); + } + } + touchmove(e) { + if (e.targetTouches.length !== 1) { + this.reset(); + } else { + this._lastPos = DOM.touchPos(this.element, e.targetTouches)[0]; + this.move({ preventDefault: () => e.preventDefault() }, this._lastPos); + } + } + touchend(e) { + if (e.targetTouches.length === 0 && this._startPos && this._lastPos && this._startPos.dist(this._lastPos) < this._clickTolerance) { + this.element.click(); + } + this.reset(); + } + reset() { + this.mouseRotate.reset(); + if (this.mousePitch) + this.mousePitch.reset(); + delete this._startPos; + delete this._lastPos; + this.offTemp(); + } +} + +function smartWrap (lngLat, priorPos, transform) { + lngLat = new ref_properties.LngLat(lngLat.lng, lngLat.lat); + if (priorPos) { + const left = new ref_properties.LngLat(lngLat.lng - 360, lngLat.lat); + const right = new ref_properties.LngLat(lngLat.lng + 360, lngLat.lat); + const withinWrap = Math.ceil(Math.abs(lngLat.lng - transform.center.lng) / 360) * 360; + const delta = transform.locationPoint(lngLat).distSqr(priorPos); + const offscreen = priorPos.x < 0 || priorPos.y < 0 || priorPos.x > transform.width || priorPos.y > transform.height; + if (transform.locationPoint(left).distSqr(priorPos) < delta && (offscreen || Math.abs(left.lng - transform.center.lng) < withinWrap)) { + lngLat = left; + } else if (transform.locationPoint(right).distSqr(priorPos) < delta && (offscreen || Math.abs(right.lng - transform.center.lng) < withinWrap)) { + lngLat = right; + } + } + while (Math.abs(lngLat.lng - transform.center.lng) > 180) { + const pos = transform.locationPoint(lngLat); + if (pos.x >= 0 && pos.y >= 0 && pos.x <= transform.width && pos.y <= transform.height) { + break; + } + if (lngLat.lng > transform.center.lng) { + lngLat.lng -= 360; + } else { + lngLat.lng += 360; + } + } + return lngLat; +} + +const anchorTranslate = { + 'center': 'translate(-50%,-50%)', + 'top': 'translate(-50%,0)', + 'top-left': 'translate(0,0)', + 'top-right': 'translate(-100%,0)', + 'bottom': 'translate(-50%,-100%)', + 'bottom-left': 'translate(0,-100%)', + 'bottom-right': 'translate(-100%,-100%)', + 'left': 'translate(0,-50%)', + 'right': 'translate(-100%,-50%)' +}; +function applyAnchorClass(element, anchor, prefix) { + const classList = element.classList; + for (const key in anchorTranslate) { + classList.remove(`mapboxgl-${ prefix }-anchor-${ key }`); + } + classList.add(`mapboxgl-${ prefix }-anchor-${ anchor }`); +} + +class Marker extends ref_properties.Evented { + constructor(options, legacyOptions) { + super(); + if (options instanceof ref_properties.window.HTMLElement || legacyOptions) { + options = ref_properties.extend({ element: options }, legacyOptions); + } + ref_properties.bindAll([ + '_update', + '_onMove', + '_onUp', + '_addDragHandler', + '_onMapClick', + '_onKeyPress' + ], this); + this._anchor = options && options.anchor || 'center'; + this._color = options && options.color || '#3FB1CE'; + this._scale = options && options.scale || 1; + this._draggable = options && options.draggable || false; + this._clickTolerance = options && options.clickTolerance || 0; + this._isDragging = false; + this._state = 'inactive'; + this._rotation = options && options.rotation || 0; + this._rotationAlignment = options && options.rotationAlignment || 'auto'; + this._pitchAlignment = options && options.pitchAlignment && options.pitchAlignment !== 'auto' ? options.pitchAlignment : this._rotationAlignment; + if (!options || !options.element) { + this._defaultMarker = true; + this._element = DOM.create('div'); + this._element.setAttribute('aria-label', 'Map marker'); + const svg = DOM.createNS('http://www.w3.org/2000/svg', 'svg'); + const defaultHeight = 41; + const defaultWidth = 27; + svg.setAttributeNS(null, 'display', 'block'); + svg.setAttributeNS(null, 'height', `${ defaultHeight }px`); + svg.setAttributeNS(null, 'width', `${ defaultWidth }px`); + svg.setAttributeNS(null, 'viewBox', `0 0 ${ defaultWidth } ${ defaultHeight }`); + const markerLarge = DOM.createNS('http://www.w3.org/2000/svg', 'g'); + markerLarge.setAttributeNS(null, 'stroke', 'none'); + markerLarge.setAttributeNS(null, 'stroke-width', '1'); + markerLarge.setAttributeNS(null, 'fill', 'none'); + markerLarge.setAttributeNS(null, 'fill-rule', 'evenodd'); + const page1 = DOM.createNS('http://www.w3.org/2000/svg', 'g'); + page1.setAttributeNS(null, 'fill-rule', 'nonzero'); + const shadow = DOM.createNS('http://www.w3.org/2000/svg', 'g'); + shadow.setAttributeNS(null, 'transform', 'translate(3.0, 29.0)'); + shadow.setAttributeNS(null, 'fill', '#000000'); + const ellipses = [ + { + 'rx': '10.5', + 'ry': '5.25002273' + }, + { + 'rx': '10.5', + 'ry': '5.25002273' + }, + { + 'rx': '9.5', + 'ry': '4.77275007' + }, + { + 'rx': '8.5', + 'ry': '4.29549936' + }, + { + 'rx': '7.5', + 'ry': '3.81822308' + }, + { + 'rx': '6.5', + 'ry': '3.34094679' + }, + { + 'rx': '5.5', + 'ry': '2.86367051' + }, + { + 'rx': '4.5', + 'ry': '2.38636864' + } + ]; + for (const data of ellipses) { + const ellipse = DOM.createNS('http://www.w3.org/2000/svg', 'ellipse'); + ellipse.setAttributeNS(null, 'opacity', '0.04'); + ellipse.setAttributeNS(null, 'cx', '10.5'); + ellipse.setAttributeNS(null, 'cy', '5.80029008'); + ellipse.setAttributeNS(null, 'rx', data['rx']); + ellipse.setAttributeNS(null, 'ry', data['ry']); + shadow.appendChild(ellipse); + } + const background = DOM.createNS('http://www.w3.org/2000/svg', 'g'); + background.setAttributeNS(null, 'fill', this._color); + const bgPath = DOM.createNS('http://www.w3.org/2000/svg', 'path'); + bgPath.setAttributeNS(null, 'd', 'M27,13.5 C27,19.074644 20.250001,27.000002 14.75,34.500002 C14.016665,35.500004 12.983335,35.500004 12.25,34.500002 C6.7499993,27.000002 0,19.222562 0,13.5 C0,6.0441559 6.0441559,0 13.5,0 C20.955844,0 27,6.0441559 27,13.5 Z'); + background.appendChild(bgPath); + const border = DOM.createNS('http://www.w3.org/2000/svg', 'g'); + border.setAttributeNS(null, 'opacity', '0.25'); + border.setAttributeNS(null, 'fill', '#000000'); + const borderPath = DOM.createNS('http://www.w3.org/2000/svg', 'path'); + borderPath.setAttributeNS(null, 'd', 'M13.5,0 C6.0441559,0 0,6.0441559 0,13.5 C0,19.222562 6.7499993,27 12.25,34.5 C13,35.522727 14.016664,35.500004 14.75,34.5 C20.250001,27 27,19.074644 27,13.5 C27,6.0441559 20.955844,0 13.5,0 Z M13.5,1 C20.415404,1 26,6.584596 26,13.5 C26,15.898657 24.495584,19.181431 22.220703,22.738281 C19.945823,26.295132 16.705119,30.142167 13.943359,33.908203 C13.743445,34.180814 13.612715,34.322738 13.5,34.441406 C13.387285,34.322738 13.256555,34.180814 13.056641,33.908203 C10.284481,30.127985 7.4148684,26.314159 5.015625,22.773438 C2.6163816,19.232715 1,15.953538 1,13.5 C1,6.584596 6.584596,1 13.5,1 Z'); + border.appendChild(borderPath); + const maki = DOM.createNS('http://www.w3.org/2000/svg', 'g'); + maki.setAttributeNS(null, 'transform', 'translate(6.0, 7.0)'); + maki.setAttributeNS(null, 'fill', '#FFFFFF'); + const circleContainer = DOM.createNS('http://www.w3.org/2000/svg', 'g'); + circleContainer.setAttributeNS(null, 'transform', 'translate(8.0, 8.0)'); + const circle1 = DOM.createNS('http://www.w3.org/2000/svg', 'circle'); + circle1.setAttributeNS(null, 'fill', '#000000'); + circle1.setAttributeNS(null, 'opacity', '0.25'); + circle1.setAttributeNS(null, 'cx', '5.5'); + circle1.setAttributeNS(null, 'cy', '5.5'); + circle1.setAttributeNS(null, 'r', '5.4999962'); + const circle2 = DOM.createNS('http://www.w3.org/2000/svg', 'circle'); + circle2.setAttributeNS(null, 'fill', '#FFFFFF'); + circle2.setAttributeNS(null, 'cx', '5.5'); + circle2.setAttributeNS(null, 'cy', '5.5'); + circle2.setAttributeNS(null, 'r', '5.4999962'); + circleContainer.appendChild(circle1); + circleContainer.appendChild(circle2); + page1.appendChild(shadow); + page1.appendChild(background); + page1.appendChild(border); + page1.appendChild(maki); + page1.appendChild(circleContainer); + svg.appendChild(page1); + svg.setAttributeNS(null, 'height', `${ defaultHeight * this._scale }px`); + svg.setAttributeNS(null, 'width', `${ defaultWidth * this._scale }px`); + this._element.appendChild(svg); + this._offset = ref_properties.Point.convert(options && options.offset || [ + 0, + -14 + ]); + } else { + this._element = options.element; + this._offset = ref_properties.Point.convert(options && options.offset || [ + 0, + 0 + ]); + } + this._element.classList.add('mapboxgl-marker'); + this._element.addEventListener('dragstart', e => { + e.preventDefault(); + }); + this._element.addEventListener('mousedown', e => { + e.preventDefault(); + }); + applyAnchorClass(this._element, this._anchor, 'marker'); + this._popup = null; + } + addTo(map) { + this.remove(); + this._map = map; + map.getCanvasContainer().appendChild(this._element); + map.on('move', this._update); + map.on('moveend', this._update); + this.setDraggable(this._draggable); + this._update(); + this._map.on('click', this._onMapClick); + return this; + } + remove() { + if (this._map) { + this._map.off('click', this._onMapClick); + this._map.off('move', this._update); + this._map.off('moveend', this._update); + this._map.off('mousedown', this._addDragHandler); + this._map.off('touchstart', this._addDragHandler); + this._map.off('mouseup', this._onUp); + this._map.off('touchend', this._onUp); + this._map.off('mousemove', this._onMove); + this._map.off('touchmove', this._onMove); + delete this._map; + } + DOM.remove(this._element); + if (this._popup) + this._popup.remove(); + return this; + } + getLngLat() { + return this._lngLat; + } + setLngLat(lnglat) { + this._lngLat = ref_properties.LngLat.convert(lnglat); + this._pos = null; + if (this._popup) + this._popup.setLngLat(this._lngLat); + this._update(); + return this; + } + getElement() { + return this._element; + } + setPopup(popup) { + if (this._popup) { + this._popup.remove(); + this._popup = null; + this._element.removeEventListener('keypress', this._onKeyPress); + if (!this._originalTabIndex) { + this._element.removeAttribute('tabindex'); + } + } + if (popup) { + if (!('offset' in popup.options)) { + const markerHeight = 41 - 5.8 / 2; + const markerRadius = 13.5; + const linearOffset = Math.sqrt(Math.pow(markerRadius, 2) / 2); + popup.options.offset = this._defaultMarker ? { + 'top': [ + 0, + 0 + ], + 'top-left': [ + 0, + 0 + ], + 'top-right': [ + 0, + 0 + ], + 'bottom': [ + 0, + -markerHeight + ], + 'bottom-left': [ + linearOffset, + (markerHeight - markerRadius + linearOffset) * -1 + ], + 'bottom-right': [ + -linearOffset, + (markerHeight - markerRadius + linearOffset) * -1 + ], + 'left': [ + markerRadius, + (markerHeight - markerRadius) * -1 + ], + 'right': [ + -markerRadius, + (markerHeight - markerRadius) * -1 + ] + } : this._offset; + } + this._popup = popup; + if (this._lngLat) + this._popup.setLngLat(this._lngLat); + this._originalTabIndex = this._element.getAttribute('tabindex'); + if (!this._originalTabIndex) { + this._element.setAttribute('tabindex', '0'); + } + this._element.addEventListener('keypress', this._onKeyPress); + } + return this; + } + _onKeyPress(e) { + const code = e.code; + const legacyCode = e.charCode || e.keyCode; + if (code === 'Space' || code === 'Enter' || legacyCode === 32 || legacyCode === 13) { + this.togglePopup(); + } + } + _onMapClick(e) { + const targetElement = e.originalEvent.target; + const element = this._element; + if (this._popup && (targetElement === element || element.contains(targetElement))) { + this.togglePopup(); + } + } + getPopup() { + return this._popup; + } + togglePopup() { + const popup = this._popup; + if (!popup) + return this; + else if (popup.isOpen()) + popup.remove(); + else + popup.addTo(this._map); + return this; + } + _updateOcclusion() { + if (!this._occlusionTimer) { + this._occlusionTimer = setTimeout(this._onOcclusionTimer.bind(this), 60); + } + } + _onOcclusionTimer() { + const tr = this._map.transform; + const pos = this._pos ? this._pos.sub(this._transformedOffset()) : null; + if (pos && pos.x >= 0 && pos.x < tr.width && pos.y >= 0 && pos.y < tr.height) { + const raycastLoc = this._map.unproject(pos); + const camera = this._map.getFreeCameraOptions(); + if (camera.position) { + const cameraPos = camera.position.toLngLat(); + const raycastDistance = cameraPos.distanceTo(raycastLoc); + const posDistance = cameraPos.distanceTo(this._lngLat); + const occluded = raycastDistance < posDistance * 0.9; + this._element.classList.toggle('mapboxgl-marker-occluded', occluded); + } + } + this._occlusionTimer = null; + } + _update(e) { + if (!this._map) + return; + if (this._map.transform.renderWorldCopies) { + this._lngLat = smartWrap(this._lngLat, this._pos, this._map.transform); + } + this._pos = this._map.project(this._lngLat)._add(this._transformedOffset()); + if (this._map.transform.elevation) + this._updateOcclusion(); + let rotation = ''; + if (this._rotationAlignment === 'viewport' || this._rotationAlignment === 'auto') { + rotation = `rotateZ(${ this._rotation }deg)`; + } else if (this._rotationAlignment === 'map') { + rotation = `rotateZ(${ this._rotation - this._map.getBearing() }deg)`; + } + let pitch = ''; + if (this._pitchAlignment === 'viewport' || this._pitchAlignment === 'auto') { + pitch = 'rotateX(0deg)'; + } else if (this._pitchAlignment === 'map') { + pitch = `rotateX(${ this._map.getPitch() }deg)`; + } + if (!e || e.type === 'moveend') { + this._pos = this._pos.round(); + } + DOM.setTransform(this._element, `${ anchorTranslate[this._anchor] } translate(${ this._pos.x }px, ${ this._pos.y }px) ${ pitch } ${ rotation }`); + } + _transformedOffset() { + if (!this._defaultMarker) + return this._offset; + const tr = this._map.transform; + const offset = this._offset.mult(this._scale); + if (this._rotationAlignment === 'map') + offset._rotate(tr.angle); + if (this._pitchAlignment === 'map') + offset.y *= Math.cos(tr._pitch); + return offset; + } + getOffset() { + return this._offset; + } + setOffset(offset) { + this._offset = ref_properties.Point.convert(offset); + this._update(); + return this; + } + _onMove(e) { + if (!this._isDragging) { + const clickTolerance = this._clickTolerance || this._map._clickTolerance; + this._isDragging = e.point.dist(this._pointerdownPos) >= clickTolerance; + } + if (!this._isDragging) + return; + this._pos = e.point.sub(this._positionDelta); + this._lngLat = this._map.unproject(this._pos); + this.setLngLat(this._lngLat); + this._element.style.pointerEvents = 'none'; + if (this._state === 'pending') { + this._state = 'active'; + this.fire(new ref_properties.Event('dragstart')); + } + this.fire(new ref_properties.Event('drag')); + } + _onUp() { + this._element.style.pointerEvents = 'auto'; + this._positionDelta = null; + this._pointerdownPos = null; + this._isDragging = false; + this._map.off('mousemove', this._onMove); + this._map.off('touchmove', this._onMove); + if (this._state === 'active') { + this.fire(new ref_properties.Event('dragend')); + } + this._state = 'inactive'; + } + _addDragHandler(e) { + if (this._element.contains(e.originalEvent.target)) { + e.preventDefault(); + this._positionDelta = e.point.sub(this._pos).add(this._transformedOffset()); + this._pointerdownPos = e.point; + this._state = 'pending'; + this._map.on('mousemove', this._onMove); + this._map.on('touchmove', this._onMove); + this._map.once('mouseup', this._onUp); + this._map.once('touchend', this._onUp); + } + } + setDraggable(shouldBeDraggable) { + this._draggable = !!shouldBeDraggable; + if (this._map) { + if (shouldBeDraggable) { + this._map.on('mousedown', this._addDragHandler); + this._map.on('touchstart', this._addDragHandler); + } else { + this._map.off('mousedown', this._addDragHandler); + this._map.off('touchstart', this._addDragHandler); + } + } + return this; + } + isDraggable() { + return this._draggable; + } + setRotation(rotation) { + this._rotation = rotation || 0; + this._update(); + return this; + } + getRotation() { + return this._rotation; + } + setRotationAlignment(alignment) { + this._rotationAlignment = alignment || 'auto'; + this._update(); + return this; + } + getRotationAlignment() { + return this._rotationAlignment; + } + setPitchAlignment(alignment) { + this._pitchAlignment = alignment && alignment !== 'auto' ? alignment : this._rotationAlignment; + this._update(); + return this; + } + getPitchAlignment() { + return this._pitchAlignment; + } +} + +const defaultOptions$3 = { + positionOptions: { + enableHighAccuracy: false, + maximumAge: 0, + timeout: 6000 + }, + fitBoundsOptions: { maxZoom: 15 }, + trackUserLocation: false, + showAccuracyCircle: true, + showUserLocation: true +}; +let supportsGeolocation; +function checkGeolocationSupport(callback) { + if (supportsGeolocation !== undefined) { + callback(supportsGeolocation); + } else if (ref_properties.window.navigator.permissions !== undefined) { + ref_properties.window.navigator.permissions.query({ name: 'geolocation' }).then(p => { + supportsGeolocation = p.state !== 'denied'; + callback(supportsGeolocation); + }); + } else { + supportsGeolocation = !!ref_properties.window.navigator.geolocation; + callback(supportsGeolocation); + } +} +let numberOfWatches = 0; +let noTimeout = false; +class GeolocateControl extends ref_properties.Evented { + constructor(options) { + super(); + this.options = ref_properties.extend({}, defaultOptions$3, options); + ref_properties.bindAll([ + '_onSuccess', + '_onError', + '_onZoom', + '_finish', + '_setupUI', + '_updateCamera', + '_updateMarker' + ], this); + } + onAdd(map) { + this._map = map; + this._container = DOM.create('div', `mapboxgl-ctrl mapboxgl-ctrl-group`); + checkGeolocationSupport(this._setupUI); + return this._container; + } + onRemove() { + if (this._geolocationWatchID !== undefined) { + ref_properties.window.navigator.geolocation.clearWatch(this._geolocationWatchID); + this._geolocationWatchID = undefined; + } + if (this.options.showUserLocation && this._userLocationDotMarker) { + this._userLocationDotMarker.remove(); + } + if (this.options.showAccuracyCircle && this._accuracyCircleMarker) { + this._accuracyCircleMarker.remove(); + } + DOM.remove(this._container); + this._map.off('zoom', this._onZoom); + this._map = undefined; + numberOfWatches = 0; + noTimeout = false; + } + _isOutOfMapMaxBounds(position) { + const bounds = this._map.getMaxBounds(); + const coordinates = position.coords; + return bounds && (coordinates.longitude < bounds.getWest() || coordinates.longitude > bounds.getEast() || coordinates.latitude < bounds.getSouth() || coordinates.latitude > bounds.getNorth()); + } + _setErrorState() { + switch (this._watchState) { + case 'WAITING_ACTIVE': + this._watchState = 'ACTIVE_ERROR'; + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-active'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-active-error'); + break; + case 'ACTIVE_LOCK': + this._watchState = 'ACTIVE_ERROR'; + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-active'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-active-error'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-waiting'); + break; + case 'BACKGROUND': + this._watchState = 'BACKGROUND_ERROR'; + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-background'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-background-error'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-waiting'); + break; + } + } + _onSuccess(position) { + if (!this._map) { + return; + } + if (this._isOutOfMapMaxBounds(position)) { + this._setErrorState(); + this.fire(new ref_properties.Event('outofmaxbounds', position)); + this._updateMarker(); + this._finish(); + return; + } + if (this.options.trackUserLocation) { + this._lastKnownPosition = position; + switch (this._watchState) { + case 'WAITING_ACTIVE': + case 'ACTIVE_LOCK': + case 'ACTIVE_ERROR': + this._watchState = 'ACTIVE_LOCK'; + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-waiting'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-active-error'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-active'); + break; + case 'BACKGROUND': + case 'BACKGROUND_ERROR': + this._watchState = 'BACKGROUND'; + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-waiting'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-background-error'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-background'); + break; + } + } + if (this.options.showUserLocation && this._watchState !== 'OFF') { + this._updateMarker(position); + } + if (!this.options.trackUserLocation || this._watchState === 'ACTIVE_LOCK') { + this._updateCamera(position); + } + if (this.options.showUserLocation) { + this._dotElement.classList.remove('mapboxgl-user-location-dot-stale'); + } + this.fire(new ref_properties.Event('geolocate', position)); + this._finish(); + } + _updateCamera(position) { + const center = new ref_properties.LngLat(position.coords.longitude, position.coords.latitude); + const radius = position.coords.accuracy; + const bearing = this._map.getBearing(); + const options = ref_properties.extend({ bearing }, this.options.fitBoundsOptions); + this._map.fitBounds(center.toBounds(radius), options, { geolocateSource: true }); + } + _updateMarker(position) { + if (position) { + const center = new ref_properties.LngLat(position.coords.longitude, position.coords.latitude); + this._accuracyCircleMarker.setLngLat(center).addTo(this._map); + this._userLocationDotMarker.setLngLat(center).addTo(this._map); + this._accuracy = position.coords.accuracy; + if (this.options.showUserLocation && this.options.showAccuracyCircle) { + this._updateCircleRadius(); + } + } else { + this._userLocationDotMarker.remove(); + this._accuracyCircleMarker.remove(); + } + } + _updateCircleRadius() { + const y = this._map._container.clientHeight / 2; + const a = this._map.unproject([ + 0, + y + ]); + const b = this._map.unproject([ + 1, + y + ]); + const metersPerPixel = a.distanceTo(b); + const circleDiameter = Math.ceil(2 * this._accuracy / metersPerPixel); + this._circleElement.style.width = `${ circleDiameter }px`; + this._circleElement.style.height = `${ circleDiameter }px`; + } + _onZoom() { + if (this.options.showUserLocation && this.options.showAccuracyCircle) { + this._updateCircleRadius(); + } + } + _onError(error) { + if (!this._map) { + return; + } + if (this.options.trackUserLocation) { + if (error.code === 1) { + this._watchState = 'OFF'; + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-waiting'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-active'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-active-error'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-background'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-background-error'); + this._geolocateButton.disabled = true; + const title = this._map._getUIString('GeolocateControl.LocationNotAvailable'); + this._geolocateButton.title = title; + this._geolocateButton.setAttribute('aria-label', title); + if (this._geolocationWatchID !== undefined) { + this._clearWatch(); + } + } else if (error.code === 3 && noTimeout) { + return; + } else { + this._setErrorState(); + } + } + if (this._watchState !== 'OFF' && this.options.showUserLocation) { + this._dotElement.classList.add('mapboxgl-user-location-dot-stale'); + } + this.fire(new ref_properties.Event('error', error)); + this._finish(); + } + _finish() { + if (this._timeoutId) { + clearTimeout(this._timeoutId); + } + this._timeoutId = undefined; + } + _setupUI(supported) { + this._container.addEventListener('contextmenu', e => e.preventDefault()); + this._geolocateButton = DOM.create('button', `mapboxgl-ctrl-geolocate`, this._container); + DOM.create('span', `mapboxgl-ctrl-icon`, this._geolocateButton).setAttribute('aria-hidden', true); + this._geolocateButton.type = 'button'; + if (supported === false) { + ref_properties.warnOnce('Geolocation support is not available so the GeolocateControl will be disabled.'); + const title = this._map._getUIString('GeolocateControl.LocationNotAvailable'); + this._geolocateButton.disabled = true; + this._geolocateButton.title = title; + this._geolocateButton.setAttribute('aria-label', title); + } else { + const title = this._map._getUIString('GeolocateControl.FindMyLocation'); + this._geolocateButton.title = title; + this._geolocateButton.setAttribute('aria-label', title); + } + if (this.options.trackUserLocation) { + this._geolocateButton.setAttribute('aria-pressed', 'false'); + this._watchState = 'OFF'; + } + if (this.options.showUserLocation) { + this._dotElement = DOM.create('div', 'mapboxgl-user-location-dot'); + this._userLocationDotMarker = new Marker(this._dotElement); + this._circleElement = DOM.create('div', 'mapboxgl-user-location-accuracy-circle'); + this._accuracyCircleMarker = new Marker({ + element: this._circleElement, + pitchAlignment: 'map' + }); + if (this.options.trackUserLocation) + this._watchState = 'OFF'; + this._map.on('zoom', this._onZoom); + } + this._geolocateButton.addEventListener('click', this.trigger.bind(this)); + this._setup = true; + if (this.options.trackUserLocation) { + this._map.on('movestart', event => { + const fromResize = event.originalEvent && event.originalEvent.type === 'resize'; + if (!event.geolocateSource && this._watchState === 'ACTIVE_LOCK' && !fromResize) { + this._watchState = 'BACKGROUND'; + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-background'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-active'); + this.fire(new ref_properties.Event('trackuserlocationend')); + } + }); + } + } + trigger() { + if (!this._setup) { + ref_properties.warnOnce('Geolocate control triggered before added to a map'); + return false; + } + if (this.options.trackUserLocation) { + switch (this._watchState) { + case 'OFF': + this._watchState = 'WAITING_ACTIVE'; + this.fire(new ref_properties.Event('trackuserlocationstart')); + break; + case 'WAITING_ACTIVE': + case 'ACTIVE_LOCK': + case 'ACTIVE_ERROR': + case 'BACKGROUND_ERROR': + numberOfWatches--; + noTimeout = false; + this._watchState = 'OFF'; + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-waiting'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-active'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-active-error'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-background'); + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-background-error'); + this.fire(new ref_properties.Event('trackuserlocationend')); + break; + case 'BACKGROUND': + this._watchState = 'ACTIVE_LOCK'; + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-background'); + if (this._lastKnownPosition) + this._updateCamera(this._lastKnownPosition); + this.fire(new ref_properties.Event('trackuserlocationstart')); + break; + } + switch (this._watchState) { + case 'WAITING_ACTIVE': + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-waiting'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-active'); + break; + case 'ACTIVE_LOCK': + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-active'); + break; + case 'ACTIVE_ERROR': + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-waiting'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-active-error'); + break; + case 'BACKGROUND': + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-background'); + break; + case 'BACKGROUND_ERROR': + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-waiting'); + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-background-error'); + break; + } + if (this._watchState === 'OFF' && this._geolocationWatchID !== undefined) { + this._clearWatch(); + } else if (this._geolocationWatchID === undefined) { + this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-waiting'); + this._geolocateButton.setAttribute('aria-pressed', 'true'); + numberOfWatches++; + let positionOptions; + if (numberOfWatches > 1) { + positionOptions = { + maximumAge: 600000, + timeout: 0 + }; + noTimeout = true; + } else { + positionOptions = this.options.positionOptions; + noTimeout = false; + } + this._geolocationWatchID = ref_properties.window.navigator.geolocation.watchPosition(this._onSuccess, this._onError, positionOptions); + } + } else { + ref_properties.window.navigator.geolocation.getCurrentPosition(this._onSuccess, this._onError, this.options.positionOptions); + this._timeoutId = setTimeout(this._finish, 10000); + } + return true; + } + _clearWatch() { + ref_properties.window.navigator.geolocation.clearWatch(this._geolocationWatchID); + this._geolocationWatchID = undefined; + this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-waiting'); + this._geolocateButton.setAttribute('aria-pressed', 'false'); + if (this.options.showUserLocation) { + this._updateMarker(null); + } + } +} + +const defaultOptions$4 = { + maxWidth: 100, + unit: 'metric' +}; +class ScaleControl { + constructor(options) { + this.options = ref_properties.extend({}, defaultOptions$4, options); + ref_properties.bindAll([ + '_onMove', + 'setUnit' + ], this); + } + getDefaultPosition() { + return 'bottom-left'; + } + _onMove() { + updateScale(this._map, this._container, this.options); + } + onAdd(map) { + this._map = map; + this._container = DOM.create('div', 'mapboxgl-ctrl mapboxgl-ctrl-scale', map.getContainer()); + this._map.on('move', this._onMove); + this._onMove(); + return this._container; + } + onRemove() { + DOM.remove(this._container); + this._map.off('move', this._onMove); + this._map = undefined; + } + setUnit(unit) { + this.options.unit = unit; + updateScale(this._map, this._container, this.options); + } +} +function updateScale(map, container, options) { + const maxWidth = options && options.maxWidth || 100; + const y = map._container.clientHeight / 2; + const left = map.unproject([ + 0, + y + ]); + const right = map.unproject([ + maxWidth, + y + ]); + const maxMeters = left.distanceTo(right); + if (options && options.unit === 'imperial') { + const maxFeet = 3.2808 * maxMeters; + if (maxFeet > 5280) { + const maxMiles = maxFeet / 5280; + setScale(container, maxWidth, maxMiles, map._getUIString('ScaleControl.Miles')); + } else { + setScale(container, maxWidth, maxFeet, map._getUIString('ScaleControl.Feet')); + } + } else if (options && options.unit === 'nautical') { + const maxNauticals = maxMeters / 1852; + setScale(container, maxWidth, maxNauticals, map._getUIString('ScaleControl.NauticalMiles')); + } else if (maxMeters >= 1000) { + setScale(container, maxWidth, maxMeters / 1000, map._getUIString('ScaleControl.Kilometers')); + } else { + setScale(container, maxWidth, maxMeters, map._getUIString('ScaleControl.Meters')); + } +} +function setScale(container, maxWidth, maxDistance, unit) { + const distance = getRoundNum(maxDistance); + const ratio = distance / maxDistance; + container.style.width = `${ maxWidth * ratio }px`; + container.innerHTML = `${ distance } ${ unit }`; +} +function getDecimalRoundNum(d) { + const multiplier = Math.pow(10, Math.ceil(-Math.log(d) / Math.LN10)); + return Math.round(d * multiplier) / multiplier; +} +function getRoundNum(num) { + const pow10 = Math.pow(10, `${ Math.floor(num) }`.length - 1); + let d = num / pow10; + d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 3 ? 3 : d >= 2 ? 2 : d >= 1 ? 1 : getDecimalRoundNum(d); + return pow10 * d; +} + +class FullscreenControl { + constructor(options) { + this._fullscreen = false; + if (options && options.container) { + if (options.container instanceof ref_properties.window.HTMLElement) { + this._container = options.container; + } else { + ref_properties.warnOnce('Full screen control \'container\' must be a DOM element.'); + } + } + ref_properties.bindAll([ + '_onClickFullscreen', + '_changeIcon' + ], this); + if ('onfullscreenchange' in ref_properties.window.document) { + this._fullscreenchange = 'fullscreenchange'; + } else if ('onwebkitfullscreenchange' in ref_properties.window.document) { + this._fullscreenchange = 'webkitfullscreenchange'; + } + } + onAdd(map) { + this._map = map; + if (!this._container) + this._container = this._map.getContainer(); + this._controlContainer = DOM.create('div', `mapboxgl-ctrl mapboxgl-ctrl-group`); + if (this._checkFullscreenSupport()) { + this._setupUI(); + } else { + this._controlContainer.style.display = 'none'; + ref_properties.warnOnce('This device does not support fullscreen mode.'); + } + return this._controlContainer; + } + onRemove() { + DOM.remove(this._controlContainer); + this._map = null; + ref_properties.window.document.removeEventListener(this._fullscreenchange, this._changeIcon); + } + _checkFullscreenSupport() { + return !!(ref_properties.window.document.fullscreenEnabled || ref_properties.window.document.webkitFullscreenEnabled); + } + _setupUI() { + const button = this._fullscreenButton = DOM.create('button', `mapboxgl-ctrl-fullscreen`, this._controlContainer); + DOM.create('span', `mapboxgl-ctrl-icon`, button).setAttribute('aria-hidden', true); + button.type = 'button'; + this._updateTitle(); + this._fullscreenButton.addEventListener('click', this._onClickFullscreen); + ref_properties.window.document.addEventListener(this._fullscreenchange, this._changeIcon); + } + _updateTitle() { + const title = this._getTitle(); + this._fullscreenButton.setAttribute('aria-label', title); + this._fullscreenButton.title = title; + } + _getTitle() { + return this._map._getUIString(this._isFullscreen() ? 'FullscreenControl.Exit' : 'FullscreenControl.Enter'); + } + _isFullscreen() { + return this._fullscreen; + } + _changeIcon() { + const fullscreenElement = ref_properties.window.document.fullscreenElement || ref_properties.window.document.webkitFullscreenElement; + if (fullscreenElement === this._container !== this._fullscreen) { + this._fullscreen = !this._fullscreen; + this._fullscreenButton.classList.toggle(`mapboxgl-ctrl-shrink`); + this._fullscreenButton.classList.toggle(`mapboxgl-ctrl-fullscreen`); + this._updateTitle(); + } + } + _onClickFullscreen() { + if (this._isFullscreen()) { + if (ref_properties.window.document.exitFullscreen) { + ref_properties.window.document.exitFullscreen(); + } else if (ref_properties.window.document.webkitCancelFullScreen) { + ref_properties.window.document.webkitCancelFullScreen(); + } + } else if (this._container.requestFullscreen) { + this._container.requestFullscreen(); + } else if (this._container.webkitRequestFullscreen) { + this._container.webkitRequestFullscreen(); + } + } +} + +const defaultOptions$5 = { + closeButton: true, + closeOnClick: true, + focusAfterOpen: true, + className: '', + maxWidth: '240px' +}; +const focusQuerySelector = [ + 'a[href]', + '[tabindex]:not([tabindex=\'-1\'])', + '[contenteditable]:not([contenteditable=\'false\'])', + 'button:not([disabled])', + 'input:not([disabled])', + 'select:not([disabled])', + 'textarea:not([disabled])' +].join(', '); +class Popup extends ref_properties.Evented { + constructor(options) { + super(); + this.options = ref_properties.extend(Object.create(defaultOptions$5), options); + ref_properties.bindAll([ + '_update', + '_onClose', + 'remove', + '_onMouseMove', + '_onMouseUp', + '_onDrag' + ], this); + } + addTo(map) { + if (this._map) + this.remove(); + this._map = map; + if (this.options.closeOnClick) { + this._map.on('click', this._onClose); + } + if (this.options.closeOnMove) { + this._map.on('move', this._onClose); + } + this._map.on('remove', this.remove); + this._update(); + this._focusFirstElement(); + if (this._trackPointer) { + this._map.on('mousemove', this._onMouseMove); + this._map.on('mouseup', this._onMouseUp); + if (this._container) { + this._container.classList.add('mapboxgl-popup-track-pointer'); + } + this._map._canvasContainer.classList.add('mapboxgl-track-pointer'); + } else { + this._map.on('move', this._update); + } + this.fire(new ref_properties.Event('open')); + return this; + } + isOpen() { + return !!this._map; + } + remove() { + if (this._content) { + DOM.remove(this._content); + } + if (this._container) { + DOM.remove(this._container); + delete this._container; + } + if (this._map) { + this._map.off('move', this._update); + this._map.off('move', this._onClose); + this._map.off('click', this._onClose); + this._map.off('remove', this.remove); + this._map.off('mousemove', this._onMouseMove); + this._map.off('mouseup', this._onMouseUp); + this._map.off('drag', this._onDrag); + delete this._map; + } + this.fire(new ref_properties.Event('close')); + return this; + } + getLngLat() { + return this._lngLat; + } + setLngLat(lnglat) { + this._lngLat = ref_properties.LngLat.convert(lnglat); + this._pos = null; + this._trackPointer = false; + this._update(); + if (this._map) { + this._map.on('move', this._update); + this._map.off('mousemove', this._onMouseMove); + if (this._container) { + this._container.classList.remove('mapboxgl-popup-track-pointer'); + } + this._map._canvasContainer.classList.remove('mapboxgl-track-pointer'); + } + return this; + } + trackPointer() { + this._trackPointer = true; + this._pos = null; + this._update(); + if (this._map) { + this._map.off('move', this._update); + this._map.on('mousemove', this._onMouseMove); + this._map.on('drag', this._onDrag); + if (this._container) { + this._container.classList.add('mapboxgl-popup-track-pointer'); + } + this._map._canvasContainer.classList.add('mapboxgl-track-pointer'); + } + return this; + } + getElement() { + return this._container; + } + setText(text) { + return this.setDOMContent(ref_properties.window.document.createTextNode(text)); + } + setHTML(html) { + const frag = ref_properties.window.document.createDocumentFragment(); + const temp = ref_properties.window.document.createElement('body'); + let child; + temp.innerHTML = html; + while (true) { + child = temp.firstChild; + if (!child) + break; + frag.appendChild(child); + } + return this.setDOMContent(frag); + } + getMaxWidth() { + return this._container && this._container.style.maxWidth; + } + setMaxWidth(maxWidth) { + this.options.maxWidth = maxWidth; + this._update(); + return this; + } + setDOMContent(htmlNode) { + if (this._content) { + while (this._content.hasChildNodes()) { + if (this._content.firstChild) { + this._content.removeChild(this._content.firstChild); + } + } + } else { + this._content = DOM.create('div', 'mapboxgl-popup-content', this._container); + } + this._content.appendChild(htmlNode); + this._createCloseButton(); + this._update(); + this._focusFirstElement(); + return this; + } + addClassName(className) { + if (this._container) { + this._container.classList.add(className); + } + } + removeClassName(className) { + if (this._container) { + this._container.classList.remove(className); + } + } + setOffset(offset) { + this.options.offset = offset; + this._update(); + return this; + } + toggleClassName(className) { + if (this._container) { + return this._container.classList.toggle(className); + } + } + _createCloseButton() { + if (this.options.closeButton) { + this._closeButton = DOM.create('button', 'mapboxgl-popup-close-button', this._content); + this._closeButton.type = 'button'; + this._closeButton.setAttribute('aria-label', 'Close popup'); + this._closeButton.innerHTML = '×'; + this._closeButton.addEventListener('click', this._onClose); + } + } + _onMouseUp(event) { + this._update(event.point); + } + _onMouseMove(event) { + this._update(event.point); + } + _onDrag(event) { + this._update(event.point); + } + _update(cursor) { + const hasPosition = this._lngLat || this._trackPointer; + if (!this._map || !hasPosition || !this._content) { + return; + } + if (!this._container) { + this._container = DOM.create('div', 'mapboxgl-popup', this._map.getContainer()); + this._tip = DOM.create('div', 'mapboxgl-popup-tip', this._container); + this._container.appendChild(this._content); + if (this.options.className) { + this.options.className.split(' ').forEach(name => this._container.classList.add(name)); + } + if (this._trackPointer) { + this._container.classList.add('mapboxgl-popup-track-pointer'); + } + } + if (this.options.maxWidth && this._container.style.maxWidth !== this.options.maxWidth) { + this._container.style.maxWidth = this.options.maxWidth; + } + if (this._map.transform.renderWorldCopies && !this._trackPointer) { + this._lngLat = smartWrap(this._lngLat, this._pos, this._map.transform); + } + if (this._trackPointer && !cursor) + return; + const pos = this._pos = this._trackPointer && cursor ? cursor : this._map.project(this._lngLat); + let anchor = this.options.anchor; + const offset = normalizeOffset(this.options.offset); + if (!anchor) { + const width = this._container.offsetWidth; + const height = this._container.offsetHeight; + let anchorComponents; + if (pos.y + offset.bottom.y < height) { + anchorComponents = ['top']; + } else if (pos.y > this._map.transform.height - height) { + anchorComponents = ['bottom']; + } else { + anchorComponents = []; + } + if (pos.x < width / 2) { + anchorComponents.push('left'); + } else if (pos.x > this._map.transform.width - width / 2) { + anchorComponents.push('right'); + } + if (anchorComponents.length === 0) { + anchor = 'bottom'; + } else { + anchor = anchorComponents.join('-'); + } + } + const offsetedPos = pos.add(offset[anchor]).round(); + DOM.setTransform(this._container, `${ anchorTranslate[anchor] } translate(${ offsetedPos.x }px,${ offsetedPos.y }px)`); + applyAnchorClass(this._container, anchor, 'popup'); + } + _focusFirstElement() { + if (!this.options.focusAfterOpen || !this._container) + return; + const firstFocusable = this._container.querySelector(focusQuerySelector); + if (firstFocusable) + firstFocusable.focus(); + } + _onClose() { + this.remove(); + } +} +function normalizeOffset(offset) { + if (!offset) { + return normalizeOffset(new ref_properties.Point(0, 0)); + } else if (typeof offset === 'number') { + const cornerOffset = Math.round(Math.sqrt(0.5 * Math.pow(offset, 2))); + return { + 'center': new ref_properties.Point(0, 0), + 'top': new ref_properties.Point(0, offset), + 'top-left': new ref_properties.Point(cornerOffset, cornerOffset), + 'top-right': new ref_properties.Point(-cornerOffset, cornerOffset), + 'bottom': new ref_properties.Point(0, -offset), + 'bottom-left': new ref_properties.Point(cornerOffset, -cornerOffset), + 'bottom-right': new ref_properties.Point(-cornerOffset, -cornerOffset), + 'left': new ref_properties.Point(offset, 0), + 'right': new ref_properties.Point(-offset, 0) + }; + } else if (offset instanceof ref_properties.Point || Array.isArray(offset)) { + const convertedOffset = ref_properties.Point.convert(offset); + return { + 'center': convertedOffset, + 'top': convertedOffset, + 'top-left': convertedOffset, + 'top-right': convertedOffset, + 'bottom': convertedOffset, + 'bottom-left': convertedOffset, + 'bottom-right': convertedOffset, + 'left': convertedOffset, + 'right': convertedOffset + }; + } else { + return { + 'center': ref_properties.Point.convert(offset['center'] || [ + 0, + 0 + ]), + 'top': ref_properties.Point.convert(offset['top'] || [ + 0, + 0 + ]), + 'top-left': ref_properties.Point.convert(offset['top-left'] || [ + 0, + 0 + ]), + 'top-right': ref_properties.Point.convert(offset['top-right'] || [ + 0, + 0 + ]), + 'bottom': ref_properties.Point.convert(offset['bottom'] || [ + 0, + 0 + ]), + 'bottom-left': ref_properties.Point.convert(offset['bottom-left'] || [ + 0, + 0 + ]), + 'bottom-right': ref_properties.Point.convert(offset['bottom-right'] || [ + 0, + 0 + ]), + 'left': ref_properties.Point.convert(offset['left'] || [ + 0, + 0 + ]), + 'right': ref_properties.Point.convert(offset['right'] || [ + 0, + 0 + ]) + }; + } +} + +const exported = { + version: ref_properties.version, + supported, + setRTLTextPlugin: ref_properties.setRTLTextPlugin, + getRTLTextPluginStatus: ref_properties.getRTLTextPluginStatus, + Map, + NavigationControl, + GeolocateControl, + AttributionControl, + ScaleControl, + FullscreenControl, + Popup, + Marker, + Style, + LngLat: ref_properties.LngLat, + LngLatBounds: ref_properties.LngLatBounds, + Point: ref_properties.Point, + MercatorCoordinate: ref_properties.MercatorCoordinate, + FreeCameraOptions, + Evented: ref_properties.Evented, + config: ref_properties.config, + prewarm, + clearPrewarmedResources, + get accessToken() { + return ref_properties.config.ACCESS_TOKEN; + }, + set accessToken(token) { + ref_properties.config.ACCESS_TOKEN = token; + }, + get baseApiUrl() { + return ref_properties.config.API_URL; + }, + set baseApiUrl(url) { + ref_properties.config.API_URL = url; + }, + get workerCount() { + return WorkerPool.workerCount; + }, + set workerCount(count) { + WorkerPool.workerCount = count; + }, + get maxParallelImageRequests() { + return ref_properties.config.MAX_PARALLEL_IMAGE_REQUESTS; + }, + set maxParallelImageRequests(numRequests) { + ref_properties.config.MAX_PARALLEL_IMAGE_REQUESTS = numRequests; + }, + clearStorage(callback) { + ref_properties.clearTileCache(callback); + }, + workerUrl: '', + workerClass: null, + setNow: ref_properties.browser.setNow, + restoreNow: ref_properties.browser.restoreNow +}; + +return exported; + +}); + +// + +return mapboxgl; + +}))); +//# sourceMappingURL=mapbox-gl-unminified.js.map diff --git a/public/mapbox/mapbox-gl.css b/public/mapbox/mapbox-gl.css new file mode 100644 index 0000000..0221a0d --- /dev/null +++ b/public/mapbox/mapbox-gl.css @@ -0,0 +1 @@ +.mapboxgl-map{font:12px/20px Helvetica Neue,Arial,Helvetica,sans-serif;overflow:hidden;position:relative;-webkit-tap-highlight-color:rgba(0,0,0,0)}.mapboxgl-canvas{position:absolute;left:0;top:0}.mapboxgl-map:-webkit-full-screen{width:100%;height:100%}.mapboxgl-canary{background-color:salmon}.mapboxgl-canvas-container.mapboxgl-interactive,.mapboxgl-ctrl-group button.mapboxgl-ctrl-compass{cursor:-webkit-grab;cursor:-moz-grab;cursor:grab;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.mapboxgl-canvas-container.mapboxgl-interactive.mapboxgl-track-pointer{cursor:pointer}.mapboxgl-canvas-container.mapboxgl-interactive:active,.mapboxgl-ctrl-group button.mapboxgl-ctrl-compass:active{cursor:-webkit-grabbing;cursor:-moz-grabbing;cursor:grabbing}.mapboxgl-canvas-container.mapboxgl-touch-zoom-rotate,.mapboxgl-canvas-container.mapboxgl-touch-zoom-rotate .mapboxgl-canvas{touch-action:pan-x pan-y}.mapboxgl-canvas-container.mapboxgl-touch-drag-pan,.mapboxgl-canvas-container.mapboxgl-touch-drag-pan .mapboxgl-canvas{touch-action:pinch-zoom}.mapboxgl-canvas-container.mapboxgl-touch-zoom-rotate.mapboxgl-touch-drag-pan,.mapboxgl-canvas-container.mapboxgl-touch-zoom-rotate.mapboxgl-touch-drag-pan .mapboxgl-canvas{touch-action:none}.mapboxgl-ctrl-bottom-left,.mapboxgl-ctrl-bottom-right,.mapboxgl-ctrl-top-left,.mapboxgl-ctrl-top-right{position:absolute;pointer-events:none;z-index:2}.mapboxgl-ctrl-top-left{top:0;left:0}.mapboxgl-ctrl-top-right{top:0;right:0}.mapboxgl-ctrl-bottom-left{bottom:0;left:0}.mapboxgl-ctrl-bottom-right{right:0;bottom:0}.mapboxgl-ctrl{clear:both;pointer-events:auto;transform:translate(0)}.mapboxgl-ctrl-top-left .mapboxgl-ctrl{margin:10px 0 0 10px;float:left}.mapboxgl-ctrl-top-right .mapboxgl-ctrl{margin:10px 10px 0 0;float:right}.mapboxgl-ctrl-bottom-left .mapboxgl-ctrl{margin:0 0 10px 10px;float:left}.mapboxgl-ctrl-bottom-right .mapboxgl-ctrl{margin:0 10px 10px 0;float:right}.mapboxgl-ctrl-group{border-radius:4px;background:#fff}.mapboxgl-ctrl-group:not(:empty){-moz-box-shadow:0 0 2px rgba(0,0,0,.1);-webkit-box-shadow:0 0 2px rgba(0,0,0,.1);box-shadow:0 0 0 2px rgba(0,0,0,.1)}@media (-ms-high-contrast:active){.mapboxgl-ctrl-group:not(:empty){box-shadow:0 0 0 2px ButtonText}}.mapboxgl-ctrl-group button{width:29px;height:29px;display:block;padding:0;outline:none;border:0;box-sizing:border-box;background-color:transparent;cursor:pointer}.mapboxgl-ctrl-group button+button{border-top:1px solid #ddd}.mapboxgl-ctrl button .mapboxgl-ctrl-icon{display:block;width:100%;height:100%;background-repeat:no-repeat;background-position:50%}@media (-ms-high-contrast:active){.mapboxgl-ctrl-icon{background-color:transparent}.mapboxgl-ctrl-group button+button{border-top:1px solid ButtonText}}.mapboxgl-ctrl button::-moz-focus-inner{border:0;padding:0}.mapboxgl-ctrl-group button:focus{box-shadow:0 0 2px 2px #0096ff}.mapboxgl-ctrl button:disabled{cursor:not-allowed}.mapboxgl-ctrl button:disabled .mapboxgl-ctrl-icon{opacity:.25}.mapboxgl-ctrl button:not(:disabled):hover{background-color:rgba(0,0,0,.05)}.mapboxgl-ctrl-group button:focus:focus-visible{box-shadow:0 0 2px 2px #0096ff}.mapboxgl-ctrl-group button:focus:not(:focus-visible){box-shadow:none}.mapboxgl-ctrl-group button:focus:first-child{border-radius:4px 4px 0 0}.mapboxgl-ctrl-group button:focus:last-child{border-radius:0 0 4px 4px}.mapboxgl-ctrl-group button:focus:only-child{border-radius:inherit}.mapboxgl-ctrl button.mapboxgl-ctrl-zoom-out .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23333'%3E%3Cpath d='M10 13c-.75 0-1.5.75-1.5 1.5S9.25 16 10 16h9c.75 0 1.5-.75 1.5-1.5S19.75 13 19 13h-9z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-zoom-in .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23333'%3E%3Cpath d='M14.5 8.5c-.75 0-1.5.75-1.5 1.5v3h-3c-.75 0-1.5.75-1.5 1.5S9.25 16 10 16h3v3c0 .75.75 1.5 1.5 1.5S16 19.75 16 19v-3h3c.75 0 1.5-.75 1.5-1.5S19.75 13 19 13h-3v-3c0-.75-.75-1.5-1.5-1.5z'/%3E%3C/svg%3E")}@media (-ms-high-contrast:active){.mapboxgl-ctrl button.mapboxgl-ctrl-zoom-out .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23fff'%3E%3Cpath d='M10 13c-.75 0-1.5.75-1.5 1.5S9.25 16 10 16h9c.75 0 1.5-.75 1.5-1.5S19.75 13 19 13h-9z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-zoom-in .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23fff'%3E%3Cpath d='M14.5 8.5c-.75 0-1.5.75-1.5 1.5v3h-3c-.75 0-1.5.75-1.5 1.5S9.25 16 10 16h3v3c0 .75.75 1.5 1.5 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.mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg' fill='%23333'%3E%3Cpath d='M24 16v5.5c0 1.75-.75 2.5-2.5 2.5H16v-1l3-1.5-4-5.5 1-1 5.5 4 1.5-3h1zM6 16l1.5 3 5.5-4 1 1-4 5.5 3 1.5v1H7.5C5.75 24 5 23.25 5 21.5V16h1zm7-11v1l-3 1.5 4 5.5-1 1-5.5-4L6 13H5V7.5C5 5.75 5.75 5 7.5 5H13zm11 2.5c0-1.75-.75-2.5-2.5-2.5H16v1l3 1.5-4 5.5 1 1 5.5-4 1.5 3h1V7.5z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-shrink .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M18.5 16c-1.75 0-2.5.75-2.5 2.5V24h1l1.5-3 5.5 4 1-1-4-5.5 3-1.5v-1h-5.5zM13 18.5c0-1.75-.75-2.5-2.5-2.5H5v1l3 1.5L4 24l1 1 5.5-4 1.5 3h1v-5.5zm3-8c0 1.75.75 2.5 2.5 2.5H24v-1l-3-1.5L25 5l-1-1-5.5 4L17 5h-1v5.5zM10.5 13c1.75 0 2.5-.75 2.5-2.5V5h-1l-1.5 3L5 4 4 5l4 5.5L5 12v1h5.5z'/%3E%3C/svg%3E")}@media 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height='29' viewBox='0 0 29 29' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M10.5 14l4-8 4 8h-8z'/%3E%3Cpath d='M10.5 16l4 8 4-8h-8z' fill='%23ccc'/%3E%3C/svg%3E")}}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23333'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3Ccircle cx='10' cy='10' r='2'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate:disabled .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23aaa'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 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9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3Ccircle cx='10' cy='10' r='2'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate.mapboxgl-ctrl-geolocate-background .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%2333b5e5'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate.mapboxgl-ctrl-geolocate-background-error .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23e54e33'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 5.1V5s0-1-1-1zm0 2.5a3.5 3.5 0 110 7 3.5 3.5 0 110-7z'/%3E%3C/svg%3E")}.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate.mapboxgl-ctrl-geolocate-waiting .mapboxgl-ctrl-icon{-webkit-animation:mapboxgl-spin 2s linear infinite;-moz-animation:mapboxgl-spin 2s infinite linear;-o-animation:mapboxgl-spin 2s infinite linear;-ms-animation:mapboxgl-spin 2s infinite linear;animation:mapboxgl-spin 2s linear infinite}@media (-ms-high-contrast:active){.mapboxgl-ctrl button.mapboxgl-ctrl-geolocate .mapboxgl-ctrl-icon{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg width='29' height='29' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23fff'%3E%3Cpath d='M10 4C9 4 9 5 9 5v.1A5 5 0 005.1 9H5s-1 0-1 1 1 1 1 1h.1A5 5 0 009 14.9v.1s0 1 1 1 1-1 1-1v-.1a5 5 0 003.9-3.9h.1s1 0 1-1-1-1-1-1h-.1A5 5 0 0011 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-0,0 +1,40 @@ +/* Mapbox GL JS is licensed under the 3-Clause BSD License. Full text of license: https://github.com/mapbox/mapbox-gl-js/blob/v1.3.1/LICENSE.txt */ +(function (global, factory) { +typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : +typeof define === 'function' && define.amd ? define(factory) : +(global = global || self, global.mapboxgl = factory()); +}(this, function () { 'use strict'; + +/* eslint-disable */ + +var shared, worker, mapboxgl; +// define gets called three times: one for each chunk. we rely on the order +// they're imported to know which is which +function define(_, chunk) { +if (!shared) { + shared = chunk; +} else if (!worker) { + worker = chunk; +} else { + var workerBundleString = 'var sharedChunk = {}; (' + shared + ')(sharedChunk); (' + worker + ')(sharedChunk);' + + var sharedChunk = {}; + shared(sharedChunk); + mapboxgl = chunk(sharedChunk); + mapboxgl.workerUrl = window.URL.createObjectURL(new Blob([workerBundleString], { type: 'text/javascript' })); +} +} + + 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i,a=(i=t.type,ti[i].BYTES_PER_ELEMENT),o=r=ii(r,Math.max(e,a)),s=t.components||1;return n=Math.max(n,a),r+=a*s,{name:t.name,type:t.type,components:s,offset:o}})),size:ii(r,Math.max(n,e)),alignment:e}}function ii(t,e){return Math.ceil(t/e)*e}ri.serialize=function(t,e){return t._trim(),e&&(t.isTransferred=!0,e.push(t.arrayBuffer)),{length:t.length,arrayBuffer:t.arrayBuffer}},ri.deserialize=function(t){var e=Object.create(this.prototype);return e.arrayBuffer=t.arrayBuffer,e.length=t.length,e.capacity=t.arrayBuffer.byteLength/e.bytesPerElement,e._refreshViews(),e},ri.prototype._trim=function(){this.length!==this.capacity&&(this.capacity=this.length,this.arrayBuffer=this.arrayBuffer.slice(0,this.length*this.bytesPerElement),this._refreshViews());},ri.prototype.clear=function(){this.length=0;},ri.prototype.resize=function(t){this.reserve(t),this.length=t;},ri.prototype.reserve=function(t){if(t>this.capacity){this.capacity=Math.max(t,Math.floor(5*this.capacity),128),this.arrayBuffer=new ArrayBuffer(this.capacity*this.bytesPerElement);var e=this.uint8;this._refreshViews(),e&&this.uint8.set(e);}},ri.prototype._refreshViews=function(){throw new Error("_refreshViews() must be implemented by each concrete StructArray layout")};var ai=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e){var r=this.length;return this.resize(r+1),this.emplace(r,t,e)},e.prototype.emplace=function(t,e,r){var n=2*t;return this.int16[n+0]=e,this.int16[n+1]=r,t},e}(ri);ai.prototype.bytesPerElement=4,_n("StructArrayLayout2i4",ai);var oi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new 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this.int16[s+0]=e,this.int16[s+1]=r,this.int16[s+2]=n,this.int16[s+3]=i,this.int16[s+4]=a,this.int16[s+5]=o,t},e}(ri);si.prototype.bytesPerElement=12,_n("StructArrayLayout2i4i12",si);var ui=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r,n,i,a){var o=this.length;return this.resize(o+1),this.emplace(o,t,e,r,n,i,a)},e.prototype.emplace=function(t,e,r,n,i,a,o){var s=4*t,u=8*t;return this.int16[s+0]=e,this.int16[s+1]=r,this.uint8[u+4]=n,this.uint8[u+5]=i,this.uint8[u+6]=a,this.uint8[u+7]=o,t},e}(ri);ui.prototype.bytesPerElement=8,_n("StructArrayLayout2i4ub8",ui);var li=function(t){function e(){t.apply(this,arguments);}return 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Uint16Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r,n,i,a,o,s){var u=this.length;return this.resize(u+1),this.emplace(u,t,e,r,n,i,a,o,s)},e.prototype.emplace=function(t,e,r,n,i,a,o,s,u){var l=8*t;return this.int16[l+0]=e,this.int16[l+1]=r,this.int16[l+2]=n,this.int16[l+3]=i,this.uint16[l+4]=a,this.uint16[l+5]=o,this.uint16[l+6]=s,this.uint16[l+7]=u,t},e}(ri);pi.prototype.bytesPerElement=16,_n("StructArrayLayout4i4ui16",pi);var ci=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r){var n=this.length;return this.resize(n+1),this.emplace(n,t,e,r)},e.prototype.emplace=function(t,e,r,n){var i=3*t;return this.float32[i+0]=e,this.float32[i+1]=r,this.float32[i+2]=n,t},e}(ri);ci.prototype.bytesPerElement=12,_n("StructArrayLayout3f12",ci);var hi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t){var e=this.length;return this.resize(e+1),this.emplace(e,t)},e.prototype.emplace=function(t,e){var r=1*t;return this.uint32[r+0]=e,t},e}(ri);hi.prototype.bytesPerElement=4,_n("StructArrayLayout1ul4",hi);var fi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.uint16=new 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this.int16[s+0]=e,this.int16[s+1]=r,this.int16[s+2]=n,this.int16[s+3]=i,this.int16[s+4]=a,this.int16[s+5]=o,t},e}(ri);yi.prototype.bytesPerElement=12,_n("StructArrayLayout2i2i2i12",yi);var di=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r,n){var i=this.length;return this.resize(i+1),this.emplace(i,t,e,r,n)},e.prototype.emplace=function(t,e,r,n,i){var a=12*t,o=3*t;return this.uint8[a+0]=e,this.uint8[a+1]=r,this.float32[o+1]=n,this.float32[o+2]=i,t},e}(ri);di.prototype.bytesPerElement=12,_n("StructArrayLayout2ub2f12",di);var mi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r,n,i,a,o,s,u,l,p,c,h,f,y,d,m){var v=this.length;return this.resize(v+1),this.emplace(v,t,e,r,n,i,a,o,s,u,l,p,c,h,f,y,d,m)},e.prototype.emplace=function(t,e,r,n,i,a,o,s,u,l,p,c,h,f,y,d,m,v){var g=24*t,x=12*t,b=48*t;return this.int16[g+0]=e,this.int16[g+1]=r,this.uint16[g+2]=n,this.uint16[g+3]=i,this.uint32[x+2]=a,this.uint32[x+3]=o,this.uint32[x+4]=s,this.uint16[g+10]=u,this.uint16[g+11]=l,this.uint16[g+12]=p,this.float32[x+7]=c,this.float32[x+8]=h,this.uint8[b+36]=f,this.uint8[b+37]=y,this.uint8[b+38]=d,this.uint32[x+10]=m,this.int16[g+22]=v,t},e}(ri);mi.prototype.bytesPerElement=48,_n("StructArrayLayout2i2ui3ul3ui2f3ub1ul1i48",mi);var vi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r,n,i,a,o,s,u,l,p,c,h,f,y,d,m,v,g,x,b,_){var w=this.length;return this.resize(w+1),this.emplace(w,t,e,r,n,i,a,o,s,u,l,p,c,h,f,y,d,m,v,g,x,b,_)},e.prototype.emplace=function(t,e,r,n,i,a,o,s,u,l,p,c,h,f,y,d,m,v,g,x,b,_,w){var A=26*t,k=13*t;return this.int16[A+0]=e,this.int16[A+1]=r,this.int16[A+2]=n,this.int16[A+3]=i,this.int16[A+4]=a,this.int16[A+5]=o,this.int16[A+6]=s,this.uint16[A+7]=u,this.uint16[A+8]=l,this.uint16[A+9]=p,this.uint16[A+10]=c,this.uint16[A+11]=h,this.uint16[A+12]=f,this.uint16[A+13]=y,this.uint16[A+14]=d,this.uint16[A+15]=m,this.uint16[A+16]=v,this.uint16[A+17]=g,this.uint32[k+9]=x,this.float32[k+10]=b,this.float32[k+11]=_,this.float32[k+12]=w,t},e}(ri);vi.prototype.bytesPerElement=52,_n("StructArrayLayout7i11ui1ul3f52",vi);var gi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t){var e=this.length;return this.resize(e+1),this.emplace(e,t)},e.prototype.emplace=function(t,e){var r=1*t;return this.float32[r+0]=e,t},e}(ri);gi.prototype.bytesPerElement=4,_n("StructArrayLayout1f4",gi);var xi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.int16=new Int16Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r){var n=this.length;return this.resize(n+1),this.emplace(n,t,e,r)},e.prototype.emplace=function(t,e,r,n){var i=3*t;return this.int16[i+0]=e,this.int16[i+1]=r,this.int16[i+2]=n,t},e}(ri);xi.prototype.bytesPerElement=6,_n("StructArrayLayout3i6",xi);var bi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint32=new Uint32Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r){var n=this.length;return this.resize(n+1),this.emplace(n,t,e,r)},e.prototype.emplace=function(t,e,r,n){var i=2*t,a=4*t;return this.uint32[i+0]=e,this.uint16[a+2]=r,this.uint16[a+3]=n,t},e}(ri);bi.prototype.bytesPerElement=8,_n("StructArrayLayout1ul2ui8",bi);var _i=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r){var n=this.length;return this.resize(n+1),this.emplace(n,t,e,r)},e.prototype.emplace=function(t,e,r,n){var i=3*t;return this.uint16[i+0]=e,this.uint16[i+1]=r,this.uint16[i+2]=n,t},e}(ri);_i.prototype.bytesPerElement=6,_n("StructArrayLayout3ui6",_i);var wi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e){var r=this.length;return this.resize(r+1),this.emplace(r,t,e)},e.prototype.emplace=function(t,e,r){var n=2*t;return this.uint16[n+0]=e,this.uint16[n+1]=r,t},e}(ri);wi.prototype.bytesPerElement=4,_n("StructArrayLayout2ui4",wi);var Ai=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.uint16=new Uint16Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t){var e=this.length;return this.resize(e+1),this.emplace(e,t)},e.prototype.emplace=function(t,e){var r=1*t;return this.uint16[r+0]=e,t},e}(ri);Ai.prototype.bytesPerElement=2,_n("StructArrayLayout1ui2",Ai);var ki=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e){var r=this.length;return this.resize(r+1),this.emplace(r,t,e)},e.prototype.emplace=function(t,e,r){var n=2*t;return this.float32[n+0]=e,this.float32[n+1]=r,t},e}(ri);ki.prototype.bytesPerElement=8,_n("StructArrayLayout2f8",ki);var Si=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._refreshViews=function(){this.uint8=new Uint8Array(this.arrayBuffer),this.float32=new Float32Array(this.arrayBuffer);},e.prototype.emplaceBack=function(t,e,r,n){var i=this.length;return this.resize(i+1),this.emplace(i,t,e,r,n)},e.prototype.emplace=function(t,e,r,n,i){var a=4*t;return this.float32[a+0]=e,this.float32[a+1]=r,this.float32[a+2]=n,this.float32[a+3]=i,t},e}(ri);Si.prototype.bytesPerElement=16,_n("StructArrayLayout4f16",Si);var zi=function(t){function e(){t.apply(this,arguments);}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={anchorPointX:{configurable:!0},anchorPointY:{configurable:!0},x1:{configurable:!0},y1:{configurable:!0},x2:{configurable:!0},y2:{configurable:!0},featureIndex:{configurable:!0},sourceLayerIndex:{configurable:!0},bucketIndex:{configurable:!0},radius:{configurable:!0},signedDistanceFromAnchor:{configurable:!0},anchorPoint:{configurable:!0}};return r.anchorPointX.get=function(){return this._structArray.int16[this._pos2+0]},r.anchorPointX.set=function(t){this._structArray.int16[this._pos2+0]=t;},r.anchorPointY.get=function(){return this._structArray.int16[this._pos2+1]},r.anchorPointY.set=function(t){this._structArray.int16[this._pos2+1]=t;},r.x1.get=function(){return this._structArray.int16[this._pos2+2]},r.x1.set=function(t){this._structArray.int16[this._pos2+2]=t;},r.y1.get=function(){return this._structArray.int16[this._pos2+3]},r.y1.set=function(t){this._structArray.int16[this._pos2+3]=t;},r.x2.get=function(){return this._structArray.int16[this._pos2+4]},r.x2.set=function(t){this._structArray.int16[this._pos2+4]=t;},r.y2.get=function(){return this._structArray.int16[this._pos2+5]},r.y2.set=function(t){this._structArray.int16[this._pos2+5]=t;},r.featureIndex.get=function(){return this._structArray.uint32[this._pos4+3]},r.featureIndex.set=function(t){this._structArray.uint32[this._pos4+3]=t;},r.sourceLayerIndex.get=function(){return this._structArray.uint16[this._pos2+8]},r.sourceLayerIndex.set=function(t){this._structArray.uint16[this._pos2+8]=t;},r.bucketIndex.get=function(){return this._structArray.uint16[this._pos2+9]},r.bucketIndex.set=function(t){this._structArray.uint16[this._pos2+9]=t;},r.radius.get=function(){return this._structArray.int16[this._pos2+10]},r.radius.set=function(t){this._structArray.int16[this._pos2+10]=t;},r.signedDistanceFromAnchor.get=function(){return this._structArray.int16[this._pos2+11]},r.signedDistanceFromAnchor.set=function(t){this._structArray.int16[this._pos2+11]=t;},r.anchorPoint.get=function(){return new i(this.anchorPointX,this.anchorPointY)},Object.defineProperties(e.prototype,r),e}(ei);zi.prototype.size=24;var Ii=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.get=function(t){return new zi(this,t)},e}(fi);_n("CollisionBoxArray",Ii);var Ci=function(t){function e(){t.apply(this,arguments);}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={anchorX:{configurable:!0},anchorY:{configurable:!0},glyphStartIndex:{configurable:!0},numGlyphs:{configurable:!0},vertexStartIndex:{configurable:!0},lineStartIndex:{configurable:!0},lineLength:{configurable:!0},segment:{configurable:!0},lowerSize:{configurable:!0},upperSize:{configurable:!0},lineOffsetX:{configurable:!0},lineOffsetY:{configurable:!0},writingMode:{configurable:!0},placedOrientation:{configurable:!0},hidden:{configurable:!0},crossTileID:{configurable:!0},associatedIconIndex:{configurable:!0}};return r.anchorX.get=function(){return this._structArray.int16[this._pos2+0]},r.anchorX.set=function(t){this._structArray.int16[this._pos2+0]=t;},r.anchorY.get=function(){return this._structArray.int16[this._pos2+1]},r.anchorY.set=function(t){this._structArray.int16[this._pos2+1]=t;},r.glyphStartIndex.get=function(){return this._structArray.uint16[this._pos2+2]},r.glyphStartIndex.set=function(t){this._structArray.uint16[this._pos2+2]=t;},r.numGlyphs.get=function(){return this._structArray.uint16[this._pos2+3]},r.numGlyphs.set=function(t){this._structArray.uint16[this._pos2+3]=t;},r.vertexStartIndex.get=function(){return this._structArray.uint32[this._pos4+2]},r.vertexStartIndex.set=function(t){this._structArray.uint32[this._pos4+2]=t;},r.lineStartIndex.get=function(){return this._structArray.uint32[this._pos4+3]},r.lineStartIndex.set=function(t){this._structArray.uint32[this._pos4+3]=t;},r.lineLength.get=function(){return this._structArray.uint32[this._pos4+4]},r.lineLength.set=function(t){this._structArray.uint32[this._pos4+4]=t;},r.segment.get=function(){return this._structArray.uint16[this._pos2+10]},r.segment.set=function(t){this._structArray.uint16[this._pos2+10]=t;},r.lowerSize.get=function(){return this._structArray.uint16[this._pos2+11]},r.lowerSize.set=function(t){this._structArray.uint16[this._pos2+11]=t;},r.upperSize.get=function(){return this._structArray.uint16[this._pos2+12]},r.upperSize.set=function(t){this._structArray.uint16[this._pos2+12]=t;},r.lineOffsetX.get=function(){return this._structArray.float32[this._pos4+7]},r.lineOffsetX.set=function(t){this._structArray.float32[this._pos4+7]=t;},r.lineOffsetY.get=function(){return this._structArray.float32[this._pos4+8]},r.lineOffsetY.set=function(t){this._structArray.float32[this._pos4+8]=t;},r.writingMode.get=function(){return this._structArray.uint8[this._pos1+36]},r.writingMode.set=function(t){this._structArray.uint8[this._pos1+36]=t;},r.placedOrientation.get=function(){return this._structArray.uint8[this._pos1+37]},r.placedOrientation.set=function(t){this._structArray.uint8[this._pos1+37]=t;},r.hidden.get=function(){return this._structArray.uint8[this._pos1+38]},r.hidden.set=function(t){this._structArray.uint8[this._pos1+38]=t;},r.crossTileID.get=function(){return this._structArray.uint32[this._pos4+10]},r.crossTileID.set=function(t){this._structArray.uint32[this._pos4+10]=t;},r.associatedIconIndex.get=function(){return this._structArray.int16[this._pos2+22]},r.associatedIconIndex.set=function(t){this._structArray.int16[this._pos2+22]=t;},Object.defineProperties(e.prototype,r),e}(ei);Ci.prototype.size=48;var Bi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.get=function(t){return new Ci(this,t)},e}(mi);_n("PlacedSymbolArray",Bi);var Mi=function(t){function e(){t.apply(this,arguments);}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={anchorX:{configurable:!0},anchorY:{configurable:!0},rightJustifiedTextSymbolIndex:{configurable:!0},centerJustifiedTextSymbolIndex:{configurable:!0},leftJustifiedTextSymbolIndex:{configurable:!0},verticalPlacedTextSymbolIndex:{configurable:!0},placedIconSymbolIndex:{configurable:!0},key:{configurable:!0},textBoxStartIndex:{configurable:!0},textBoxEndIndex:{configurable:!0},verticalTextBoxStartIndex:{configurable:!0},verticalTextBoxEndIndex:{configurable:!0},iconBoxStartIndex:{configurable:!0},iconBoxEndIndex:{configurable:!0},featureIndex:{configurable:!0},numHorizontalGlyphVertices:{configurable:!0},numVerticalGlyphVertices:{configurable:!0},numIconVertices:{configurable:!0},crossTileID:{configurable:!0},textBoxScale:{configurable:!0},textOffset0:{configurable:!0},textOffset1:{configurable:!0}};return r.anchorX.get=function(){return this._structArray.int16[this._pos2+0]},r.anchorX.set=function(t){this._structArray.int16[this._pos2+0]=t;},r.anchorY.get=function(){return this._structArray.int16[this._pos2+1]},r.anchorY.set=function(t){this._structArray.int16[this._pos2+1]=t;},r.rightJustifiedTextSymbolIndex.get=function(){return this._structArray.int16[this._pos2+2]},r.rightJustifiedTextSymbolIndex.set=function(t){this._structArray.int16[this._pos2+2]=t;},r.centerJustifiedTextSymbolIndex.get=function(){return this._structArray.int16[this._pos2+3]},r.centerJustifiedTextSymbolIndex.set=function(t){this._structArray.int16[this._pos2+3]=t;},r.leftJustifiedTextSymbolIndex.get=function(){return this._structArray.int16[this._pos2+4]},r.leftJustifiedTextSymbolIndex.set=function(t){this._structArray.int16[this._pos2+4]=t;},r.verticalPlacedTextSymbolIndex.get=function(){return this._structArray.int16[this._pos2+5]},r.verticalPlacedTextSymbolIndex.set=function(t){this._structArray.int16[this._pos2+5]=t;},r.placedIconSymbolIndex.get=function(){return this._structArray.int16[this._pos2+6]},r.placedIconSymbolIndex.set=function(t){this._structArray.int16[this._pos2+6]=t;},r.key.get=function(){return this._structArray.uint16[this._pos2+7]},r.key.set=function(t){this._structArray.uint16[this._pos2+7]=t;},r.textBoxStartIndex.get=function(){return this._structArray.uint16[this._pos2+8]},r.textBoxStartIndex.set=function(t){this._structArray.uint16[this._pos2+8]=t;},r.textBoxEndIndex.get=function(){return this._structArray.uint16[this._pos2+9]},r.textBoxEndIndex.set=function(t){this._structArray.uint16[this._pos2+9]=t;},r.verticalTextBoxStartIndex.get=function(){return this._structArray.uint16[this._pos2+10]},r.verticalTextBoxStartIndex.set=function(t){this._structArray.uint16[this._pos2+10]=t;},r.verticalTextBoxEndIndex.get=function(){return this._structArray.uint16[this._pos2+11]},r.verticalTextBoxEndIndex.set=function(t){this._structArray.uint16[this._pos2+11]=t;},r.iconBoxStartIndex.get=function(){return this._structArray.uint16[this._pos2+12]},r.iconBoxStartIndex.set=function(t){this._structArray.uint16[this._pos2+12]=t;},r.iconBoxEndIndex.get=function(){return this._structArray.uint16[this._pos2+13]},r.iconBoxEndIndex.set=function(t){this._structArray.uint16[this._pos2+13]=t;},r.featureIndex.get=function(){return this._structArray.uint16[this._pos2+14]},r.featureIndex.set=function(t){this._structArray.uint16[this._pos2+14]=t;},r.numHorizontalGlyphVertices.get=function(){return this._structArray.uint16[this._pos2+15]},r.numHorizontalGlyphVertices.set=function(t){this._structArray.uint16[this._pos2+15]=t;},r.numVerticalGlyphVertices.get=function(){return this._structArray.uint16[this._pos2+16]},r.numVerticalGlyphVertices.set=function(t){this._structArray.uint16[this._pos2+16]=t;},r.numIconVertices.get=function(){return this._structArray.uint16[this._pos2+17]},r.numIconVertices.set=function(t){this._structArray.uint16[this._pos2+17]=t;},r.crossTileID.get=function(){return this._structArray.uint32[this._pos4+9]},r.crossTileID.set=function(t){this._structArray.uint32[this._pos4+9]=t;},r.textBoxScale.get=function(){return this._structArray.float32[this._pos4+10]},r.textBoxScale.set=function(t){this._structArray.float32[this._pos4+10]=t;},r.textOffset0.get=function(){return this._structArray.float32[this._pos4+11]},r.textOffset0.set=function(t){this._structArray.float32[this._pos4+11]=t;},r.textOffset1.get=function(){return this._structArray.float32[this._pos4+12]},r.textOffset1.set=function(t){this._structArray.float32[this._pos4+12]=t;},Object.defineProperties(e.prototype,r),e}(ei);Mi.prototype.size=52;var Ei=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.get=function(t){return new Mi(this,t)},e}(vi);_n("SymbolInstanceArray",Ei);var Pi=function(t){function e(){t.apply(this,arguments);}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={offsetX:{configurable:!0}};return r.offsetX.get=function(){return this._structArray.float32[this._pos4+0]},r.offsetX.set=function(t){this._structArray.float32[this._pos4+0]=t;},Object.defineProperties(e.prototype,r),e}(ei);Pi.prototype.size=4;var Ti=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getoffsetX=function(t){return this.float32[1*t+0]},e.prototype.get=function(t){return new Pi(this,t)},e}(gi);_n("GlyphOffsetArray",Ti);var Vi=function(t){function e(){t.apply(this,arguments);}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={x:{configurable:!0},y:{configurable:!0},tileUnitDistanceFromAnchor:{configurable:!0}};return r.x.get=function(){return this._structArray.int16[this._pos2+0]},r.x.set=function(t){this._structArray.int16[this._pos2+0]=t;},r.y.get=function(){return this._structArray.int16[this._pos2+1]},r.y.set=function(t){this._structArray.int16[this._pos2+1]=t;},r.tileUnitDistanceFromAnchor.get=function(){return this._structArray.int16[this._pos2+2]},r.tileUnitDistanceFromAnchor.set=function(t){this._structArray.int16[this._pos2+2]=t;},Object.defineProperties(e.prototype,r),e}(ei);Vi.prototype.size=6;var Fi=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getx=function(t){return this.int16[3*t+0]},e.prototype.gety=function(t){return this.int16[3*t+1]},e.prototype.gettileUnitDistanceFromAnchor=function(t){return this.int16[3*t+2]},e.prototype.get=function(t){return new Vi(this,t)},e}(xi);_n("SymbolLineVertexArray",Fi);var Oi=function(t){function e(){t.apply(this,arguments);}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var r={featureIndex:{configurable:!0},sourceLayerIndex:{configurable:!0},bucketIndex:{configurable:!0}};return r.featureIndex.get=function(){return this._structArray.uint32[this._pos4+0]},r.featureIndex.set=function(t){this._structArray.uint32[this._pos4+0]=t;},r.sourceLayerIndex.get=function(){return this._structArray.uint16[this._pos2+2]},r.sourceLayerIndex.set=function(t){this._structArray.uint16[this._pos2+2]=t;},r.bucketIndex.get=function(){return this._structArray.uint16[this._pos2+3]},r.bucketIndex.set=function(t){this._structArray.uint16[this._pos2+3]=t;},Object.defineProperties(e.prototype,r),e}(ei);Oi.prototype.size=8;var Li=function(t){function e(){t.apply(this,arguments);}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.get=function(t){return new Oi(this,t)},e}(bi);_n("FeatureIndexArray",Li);var 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t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.recalculate=function(e,r){if(t.prototype.recalculate.call(this,e,r),"auto"===this.layout.get("icon-rotation-alignment")&&("point"!==this.layout.get("symbol-placement")?this.layout._values["icon-rotation-alignment"]="map":this.layout._values["icon-rotation-alignment"]="viewport"),"auto"===this.layout.get("text-rotation-alignment")&&("point"!==this.layout.get("symbol-placement")?this.layout._values["text-rotation-alignment"]="map":this.layout._values["text-rotation-alignment"]="viewport"),"auto"===this.layout.get("text-pitch-alignment")&&(this.layout._values["text-pitch-alignment"]=this.layout.get("text-rotation-alignment")),"auto"===this.layout.get("icon-pitch-alignment")&&(this.layout._values["icon-pitch-alignment"]=this.layout.get("icon-rotation-alignment")),"point"===this.layout.get("symbol-placement")){var n=this.layout.get("text-writing-mode");if(n){for(var i=[],a=0,o=n;a=0;h--){var 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t=Au(this.buf,this.pos)+4294967296*Au(this.buf,this.pos+4);return this.pos+=8,t},readSFixed64:function(){var t=Au(this.buf,this.pos)+4294967296*Su(this.buf,this.pos+4);return this.pos+=8,t},readFloat:function(){var t=su(this.buf,this.pos,!0,23,4);return this.pos+=4,t},readDouble:function(){var t=su(this.buf,this.pos,!0,52,8);return this.pos+=8,t},readVarint:function(t){var e,r,n=this.buf;return e=127&(r=n[this.pos++]),r<128?e:(e|=(127&(r=n[this.pos++]))<<7,r<128?e:(e|=(127&(r=n[this.pos++]))<<14,r<128?e:(e|=(127&(r=n[this.pos++]))<<21,r<128?e:function(t,e,r){var n,i,a=r.buf;if(i=a[r.pos++],n=(112&i)>>4,i<128)return hu(t,n,e);if(i=a[r.pos++],n|=(127&i)<<3,i<128)return hu(t,n,e);if(i=a[r.pos++],n|=(127&i)<<10,i<128)return hu(t,n,e);if(i=a[r.pos++],n|=(127&i)<<17,i<128)return hu(t,n,e);if(i=a[r.pos++],n|=(127&i)<<24,i<128)return hu(t,n,e);if(i=a[r.pos++],n|=(1&i)<<31,i<128)return hu(t,n,e);throw new Error("Expected varint not more than 10 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i&&(t[r++]=239,t[r++]=191,t[r++]=189,i=null);n<128?t[r++]=n:(n<2048?t[r++]=n>>6|192:(n<65536?t[r++]=n>>12|224:(t[r++]=n>>18|240,t[r++]=n>>12&63|128),t[r++]=n>>6&63|128),t[r++]=63&n|128);}return r}(this.buf,t,this.pos);var r=this.pos-e;r>=128&&fu(e,r,this),this.pos=e-1,this.writeVarint(r),this.pos+=r;},writeFloat:function(t){this.realloc(4),uu(this.buf,t,this.pos,!0,23,4),this.pos+=4;},writeDouble:function(t){this.realloc(8),uu(this.buf,t,this.pos,!0,52,8),this.pos+=8;},writeBytes:function(t){var e=t.length;this.writeVarint(e),this.realloc(e);for(var r=0;r=128&&fu(r,n,this),this.pos=r-1,this.writeVarint(n),this.pos+=n;},writeMessage:function(t,e,r){this.writeTag(t,pu.Bytes),this.writeRawMessage(e,r);},writePackedVarint:function(t,e){e.length&&this.writeMessage(t,yu,e);},writePackedSVarint:function(t,e){e.length&&this.writeMessage(t,du,e);},writePackedBoolean:function(t,e){e.length&&this.writeMessage(t,gu,e);},writePackedFloat:function(t,e){e.length&&this.writeMessage(t,mu,e);},writePackedDouble:function(t,e){e.length&&this.writeMessage(t,vu,e);},writePackedFixed32:function(t,e){e.length&&this.writeMessage(t,xu,e);},writePackedSFixed32:function(t,e){e.length&&this.writeMessage(t,bu,e);},writePackedFixed64:function(t,e){e.length&&this.writeMessage(t,_u,e);},writePackedSFixed64:function(t,e){e.length&&this.writeMessage(t,wu,e);},writeBytesField:function(t,e){this.writeTag(t,pu.Bytes),this.writeBytes(e);},writeFixed32Field:function(t,e){this.writeTag(t,pu.Fixed32),this.writeFixed32(e);},writeSFixed32Field:function(t,e){this.writeTag(t,pu.Fixed32),this.writeSFixed32(e);},writeFixed64Field:function(t,e){this.writeTag(t,pu.Fixed64),this.writeFixed64(e);},writeSFixed64Field:function(t,e){this.writeTag(t,pu.Fixed64),this.writeSFixed64(e);},writeVarintField:function(t,e){this.writeTag(t,pu.Varint),this.writeVarint(e);},writeSVarintField:function(t,e){this.writeTag(t,pu.Varint),this.writeSVarint(e);},writeStringField:function(t,e){this.writeTag(t,pu.Bytes),this.writeString(e);},writeFloatField:function(t,e){this.writeTag(t,pu.Fixed32),this.writeFloat(e);},writeDoubleField:function(t,e){this.writeTag(t,pu.Fixed64),this.writeDouble(e);},writeBooleanField:function(t,e){this.writeVarintField(t,Boolean(e));}};var zu=3;function Iu(t,e,r){1===t&&r.readMessage(Cu,e);}function Cu(t,e,r){if(3===t){var n=r.readMessage(Bu,{}),i=n.id,a=n.bitmap,o=n.width,s=n.height,u=n.left,l=n.top,p=n.advance;e.push({id:i,bitmap:new Ra({width:o+2*zu,height:s+2*zu},a),metrics:{width:o,height:s,left:u,top:l,advance:p}});}}function Bu(t,e,r){1===t?e.id=r.readVarint():2===t?e.bitmap=r.readBytes():3===t?e.width=r.readVarint():4===t?e.height=r.readVarint():5===t?e.left=r.readSVarint():6===t?e.top=r.readSVarint():7===t&&(e.advance=r.readVarint());}var Mu=zu,Eu=function(t){var e=this;this._callback=t,this._triggered=!1,"undefined"!=typeof MessageChannel&&(this._channel=new MessageChannel,this._channel.port2.onmessage=function(){e._triggered=!1,e._callback();});};Eu.prototype.trigger=function(){var t=this;this._triggered||(this._triggered=!0,this._channel?this._channel.port1.postMessage(!0):setTimeout((function(){t._triggered=!1,t._callback();}),0));};var Pu=function(t,e,r){this.target=t,this.parent=e,this.mapId=r,this.callbacks={},this.tasks={},this.taskQueue=[],this.cancelCallbacks={},m(["receive","process"],this),this.invoker=new Eu(this.process),this.target.addEventListener("message",this.receive,!1);};function Tu(t,e,r){var n=2*Math.PI*6378137/256/Math.pow(2,r);return [t*n-2*Math.PI*6378137/2,e*n-2*Math.PI*6378137/2]}Pu.prototype.send=function(t,e,r,n){var i=this,a=Math.round(1e18*Math.random()).toString(36).substring(0,10);r&&(this.callbacks[a]=r);var o=[];return this.target.postMessage({id:a,type:t,hasCallback:!!r,targetMapId:n,sourceMapId:this.mapId,data:An(e,o)},o),{cancel:function(){r&&delete i.callbacks[a],i.target.postMessage({id:a,type:"",targetMapId:n,sourceMapId:i.mapId});}}},Pu.prototype.receive=function(t){var e=t.data,r=e.id;if(r&&(!e.targetMapId||this.mapId===e.targetMapId))if(""===e.type){delete this.tasks[r];var n=this.cancelCallbacks[r];delete this.cancelCallbacks[r],n&&n();}else this.tasks[r]=e,this.taskQueue.push(r),this.invoker.trigger();},Pu.prototype.process=function(){var t=this;if(this.taskQueue.length){var e=this.taskQueue.shift(),r=this.tasks[e];if(delete this.tasks[e],this.taskQueue.length&&this.invoker.trigger(),r)if(""===r.type){var n=this.callbacks[e];delete this.callbacks[e],n&&(r.error?n(kn(r.error)):n(null,kn(r.data)));}else{var i=!1,a=r.hasCallback?function(r,n){i=!0,delete t.cancelCallbacks[e];var a=[];t.target.postMessage({id:e,type:"",sourceMapId:t.mapId,error:r?An(r):null,data:An(n,a)},a);}:function(t){i=!0;},o=null,s=kn(r.data);if(this.parent[r.type])o=this.parent[r.type](r.sourceMapId,s,a);else if(this.parent.getWorkerSource){var u=r.type.split(".");o=this.parent.getWorkerSource(r.sourceMapId,u[0],s.source)[u[1]](s,a);}else a(new Error("Could not find function "+r.type));!i&&o&&o.cancel&&(this.cancelCallbacks[e]=o.cancel);}}},Pu.prototype.remove=function(){this.target.removeEventListener("message",this.receive,!1);};var Vu=function(t,e){t&&(e?this.setSouthWest(t).setNorthEast(e):4===t.length?this.setSouthWest([t[0],t[1]]).setNorthEast([t[2],t[3]]):this.setSouthWest(t[0]).setNorthEast(t[1]));};Vu.prototype.setNorthEast=function(t){return this._ne=t instanceof Fu?new Fu(t.lng,t.lat):Fu.convert(t),this},Vu.prototype.setSouthWest=function(t){return this._sw=t instanceof Fu?new Fu(t.lng,t.lat):Fu.convert(t),this},Vu.prototype.extend=function(t){var e,r,n=this._sw,i=this._ne;if(t instanceof Fu)e=t,r=t;else{if(!(t instanceof Vu))return Array.isArray(t)?t.every(Array.isArray)?this.extend(Vu.convert(t)):this.extend(Fu.convert(t)):this;if(e=t._sw,r=t._ne,!e||!r)return this}return n||i?(n.lng=Math.min(e.lng,n.lng),n.lat=Math.min(e.lat,n.lat),i.lng=Math.max(r.lng,i.lng),i.lat=Math.max(r.lat,i.lat)):(this._sw=new Fu(e.lng,e.lat),this._ne=new Fu(r.lng,r.lat)),this},Vu.prototype.getCenter=function(){return new Fu((this._sw.lng+this._ne.lng)/2,(this._sw.lat+this._ne.lat)/2)},Vu.prototype.getSouthWest=function(){return this._sw},Vu.prototype.getNorthEast=function(){return this._ne},Vu.prototype.getNorthWest=function(){return new Fu(this.getWest(),this.getNorth())},Vu.prototype.getSouthEast=function(){return new Fu(this.getEast(),this.getSouth())},Vu.prototype.getWest=function(){return this._sw.lng},Vu.prototype.getSouth=function(){return this._sw.lat},Vu.prototype.getEast=function(){return this._ne.lng},Vu.prototype.getNorth=function(){return this._ne.lat},Vu.prototype.toArray=function(){return [this._sw.toArray(),this._ne.toArray()]},Vu.prototype.toString=function(){return "LngLatBounds("+this._sw.toString()+", "+this._ne.toString()+")"},Vu.prototype.isEmpty=function(){return !(this._sw&&this._ne)},Vu.convert=function(t){return !t||t instanceof Vu?t:new Vu(t)};var Fu=function(t,e){if(isNaN(t)||isNaN(e))throw new Error("Invalid LngLat object: ("+t+", "+e+")");if(this.lng=+t,this.lat=+e,this.lat>90||this.lat<-90)throw new Error("Invalid LngLat latitude value: must be between -90 and 90")};Fu.prototype.wrap=function(){return new Fu(p(this.lng,-180,180),this.lat)},Fu.prototype.toArray=function(){return [this.lng,this.lat]},Fu.prototype.toString=function(){return "LngLat("+this.lng+", "+this.lat+")"},Fu.prototype.toBounds=function(t){void 0===t&&(t=0);var e=360*t/40075017,r=e/Math.cos(Math.PI/180*this.lat);return new Vu(new Fu(this.lng-r,this.lat-e),new Fu(this.lng+r,this.lat+e))},Fu.convert=function(t){if(t instanceof Fu)return t;if(Array.isArray(t)&&(2===t.length||3===t.length))return new Fu(Number(t[0]),Number(t[1]));if(!Array.isArray(t)&&"object"==typeof t&&null!==t)return new Fu(Number("lng"in t?t.lng:t.lon),Number(t.lat));throw new Error("`LngLatLike` argument must be specified as a LngLat instance, an object {lng: , lat: }, an object {lon: , lat: }, or an array of [, ]")};var Ou=2*Math.PI*6378137;function Lu(t){return Ou*Math.cos(t*Math.PI/180)}function Du(t){return (180+t)/360}function Uu(t){return (180-180/Math.PI*Math.log(Math.tan(Math.PI/4+t*Math.PI/360)))/360}function Ru(t,e){return t/Lu(e)}function ju(t){var e=180-360*t;return 360/Math.PI*Math.atan(Math.exp(e*Math.PI/180))-90}var qu=function(t,e,r){void 0===r&&(r=0),this.x=+t,this.y=+e,this.z=+r;};qu.fromLngLat=function(t,e){void 0===e&&(e=0);var r=Fu.convert(t);return new qu(Du(r.lng),Uu(r.lat),Ru(e,r.lat))},qu.prototype.toLngLat=function(){return new Fu(360*this.x-180,ju(this.y))},qu.prototype.toAltitude=function(){return t=this.z,e=this.y,t*Lu(ju(e));var t,e;},qu.prototype.meterInMercatorCoordinateUnits=function(){return 1/Ou*(t=ju(this.y),1/Math.cos(t*Math.PI/180));var t;};var Nu=function(t,e,r){this.z=t,this.x=e,this.y=r,this.key=Zu(0,t,e,r);};Nu.prototype.equals=function(t){return this.z===t.z&&this.x===t.x&&this.y===t.y},Nu.prototype.url=function(t,e){var r,n,i,a,o,s=(r=this.x,n=this.y,i=this.z,a=Tu(256*r,256*(n=Math.pow(2,i)-n-1),i),o=Tu(256*(r+1),256*(n+1),i),a[0]+","+a[1]+","+o[0]+","+o[1]),u=function(t,e,r){for(var n,i="",a=t;a>0;a--)i+=(e&(n=1<this.canonical.z?new Xu(t,this.wrap,this.canonical.z,this.canonical.x,this.canonical.y):new Xu(t,this.wrap,t,this.canonical.x>>e,this.canonical.y>>e)},Xu.prototype.isChildOf=function(t){if(t.wrap!==this.wrap)return !1;var e=this.canonical.z-t.canonical.z;return 0===t.overscaledZ||t.overscaledZ>e&&t.canonical.y===this.canonical.y>>e},Xu.prototype.children=function(t){if(this.overscaledZ>=t)return [new Xu(this.overscaledZ+1,this.wrap,this.canonical.z,this.canonical.x,this.canonical.y)];var e=this.canonical.z+1,r=2*this.canonical.x,n=2*this.canonical.y;return [new Xu(e,this.wrap,e,r,n),new Xu(e,this.wrap,e,r+1,n),new Xu(e,this.wrap,e,r,n+1),new Xu(e,this.wrap,e,r+1,n+1)]},Xu.prototype.isLessThan=function(t){return this.wrapt.wrap)&&(this.overscaledZt.overscaledZ)&&(this.canonical.xt.canonical.x)&&this.canonical.y=this.dim+1||e<-1||e>=this.dim+1)throw new RangeError("out of range source coordinates for DEM data");return (e+1)*this.stride+(t+1)},Gu.prototype._unpackMapbox=function(t,e,r){return (256*t*256+256*e+r)/10-1e4},Gu.prototype._unpackTerrarium=function(t,e,r){return 256*t+e+r/256-32768},Gu.prototype.getPixels=function(){return new ja({width:this.stride,height:this.stride},new Uint8Array(this.data.buffer))},Gu.prototype.backfillBorder=function(t,e,r){if(this.dim!==t.dim)throw new Error("dem dimension mismatch");var n=e*this.dim,i=e*this.dim+this.dim,a=r*this.dim,o=r*this.dim+this.dim;switch(e){case-1:n=i-1;break;case 1:i=n+1;}switch(r){case-1:a=o-1;break;case 1:o=a+1;}for(var s=-e*this.dim,u=-r*this.dim,l=a;l=0)null!==this.deletedStates[t][n]&&(this.deletedStates[t][n]=this.deletedStates[t][n]||{},this.deletedStates[t][n][r]=null);else if(void 0!==e&&e>=0){if(this.stateChanges[t]&&this.stateChanges[t][n])for(r in this.deletedStates[t][n]={},this.stateChanges[t][n])this.deletedStates[t][n][r]=null;else this.deletedStates[t][n]=null;}else this.deletedStates[t]=null;}},Wu.prototype.getState=function(t,e){var r=String(e),n=this.state[t]||{},i=this.stateChanges[t]||{},a=c({},n[r],i[r]);if(null===this.deletedStates[t])return {};if(this.deletedStates[t]){var o=this.deletedStates[t][e];if(null===o)return {};for(var s in o)delete a[s];}return a},Wu.prototype.initializeTileState=function(t,e){t.setFeatureState(this.state,e);},Wu.prototype.coalesceChanges=function(t,e){var r={};for(var n in this.stateChanges){this.state[n]=this.state[n]||{};var i={};for(var a in this.stateChanges[n])this.state[n][a]||(this.state[n][a]={}),c(this.state[n][a],this.stateChanges[n][a]),i[a]=this.state[n][a];r[n]=i;}for(var o in this.deletedStates){this.state[o]=this.state[o]||{};var s={};if(null===this.deletedStates[o])for(var u in this.state[o])s[u]={},this.state[o][u]={};else for(var l in this.deletedStates[o]){if(null===this.deletedStates[o][l])this.state[o][l]={};else for(var p=0,h=Object.keys(this.deletedStates[o][l]);p=0&&p[3]>=0&&s.insert(o,p[0],p[1],p[2],p[3]);}},Qu.prototype.loadVTLayers=function(){return this.vtLayers||(this.vtLayers=new No.VectorTile(new lu(this.rawTileData)).layers,this.sourceLayerCoder=new Hu(this.vtLayers?Object.keys(this.vtLayers).sort():["_geojsonTileLayer"])),this.vtLayers},Qu.prototype.query=function(t,e,r){var n=this;this.loadVTLayers();for(var a=t.params||{},o=ua/t.tileSize/t.scale,s=Nr(a.filter),u=t.queryGeometry,l=t.queryPadding*o,p=tl(u),c=this.grid.query(p.minX-l,p.minY-l,p.maxX+l,p.maxY+l),h=tl(t.cameraQueryGeometry),f=this.grid3D.query(h.minX-l,h.minY-l,h.maxX+l,h.maxY+l,(function(e,r,n,a){return function(t,e,r,n,a){for(var o=0,s=t;o=u.x&&a>=u.y)return !0}var l=[new i(e,r),new i(e,a),new i(n,a),new i(n,r)];if(t.length>2)for(var p=0,c=l;p=0)return !0;return !1}(a,u)){var l=this.sourceLayerCoder.decode(r),p=this.vtLayers[l].feature(n);if(i(new Dn(this.tileID.overscaledZ),p))for(var c=0;c>u.z,p=new i(u.x*l,u.y*l),c=new i(p.x+l,p.y+l),h=this.segments.prepareSegment(4,r,n);r.emplaceBack(p.x,p.y,p.x,p.y),r.emplaceBack(c.x,p.y,c.x,p.y),r.emplaceBack(p.x,c.y,p.x,c.y),r.emplaceBack(c.x,c.y,c.x,c.y);var f=h.vertexLength;n.emplaceBack(f,f+1,f+2),n.emplaceBack(f+1,f+2,f+3),h.vertexLength+=4,h.primitiveLength+=2;}this.maskedBoundsBuffer=e.createVertexBuffer(r,Ju.members),this.maskedIndexBuffer=e.createIndexBuffer(n);}},rl.prototype.hasData=function(){return "loaded"===this.state||"reloading"===this.state||"expired"===this.state},rl.prototype.patternsLoaded=function(){return this.imageAtlas&&!!Object.keys(this.imageAtlas.patternPositions).length},rl.prototype.setExpiryData=function(t){var e=this.expirationTime;if(t.cacheControl){var r=S(t.cacheControl);r["max-age"]&&(this.expirationTime=Date.now()+1e3*r["max-age"]);}else t.expires&&(this.expirationTime=new Date(t.expires).getTime());if(this.expirationTime){var n=Date.now(),i=!1;if(this.expirationTime>n)i=!1;else if(e)if(this.expirationTime-r/2;){if(--o<0)return !1;s-=t[o].dist(a),a=t[o];}s+=t[o].dist(t[o+1]),o++;for(var u=[],l=0;sn;)l-=u.shift().angleDelta;if(l>i)return !1;o++,s+=c.dist(h);}return !0}function il(t){for(var e=0,r=0;rl){var y=(l-u)/f,d=Se(c.x,h.x,y),m=Se(c.y,h.y,y),v=new Bs(d,m,h.angleTo(c),p);return v._round(),!o||nl(t,v,s,o,e)?v:void 0}u+=f;}}function ul(t,e,r,n,i,a,o,s,u){var l=al(n,a,o),p=ol(n,i),c=p*o,h=0===t[0].x||t[0].x===u||0===t[0].y||t[0].y===u;return e-c=0&&_=0&&w=0&&f+p<=c){var A=new Bs(_,w,x,d);A._round(),i&&!nl(e,A,o,i,a)||y.push(A);}}h+=g;}u||y.length||s||(y=t(e,h/2,n,i,a,o,s,!0,l));return y}(t,h?e/2*s%e:(p/2+2*a)*o*s%e,e,l,r,c,h,!1,u)}var ll=function(t,e,r,n,a,o,s,u,l,p,c,h){var f=s.top*u-l,y=s.bottom*u+l,d=s.left*u-l,m=s.right*u+l;if(this.boxStartIndex=t.length,p){var v=y-f,g=m-d;v>0&&(v=Math.max(10*u,v),this._addLineCollisionCircles(t,e,r,r.segment,g,v,n,a,o,c));}else{if(h){var x=new i(d,f),b=new i(m,f),_=new i(d,y),w=new i(m,y),A=h*Math.PI/180;x._rotate(A),b._rotate(A),_._rotate(A),w._rotate(A),d=Math.min(x.x,b.x,_.x,w.x),m=Math.max(x.x,b.x,_.x,w.x),f=Math.min(x.y,b.y,_.y,w.y),y=Math.max(x.y,b.y,_.y,w.y);}t.emplaceBack(r.x,r.y,d,f,m,y,n,a,o,0,0);}this.boxEndIndex=t.length;};ll.prototype._addLineCollisionCircles=function(t,e,r,n,i,a,o,s,u,l){var p=a/2,c=Math.floor(i/p)||1,h=1+.4*Math.log(l)/Math.LN2,f=Math.floor(c*h/2),y=-a/2,d=r,m=n+1,v=y,g=-i/2,x=g-i/4;do{if(--m<0){if(v>g)return;m=0;break}v-=e[m].dist(d),d=e[m];}while(v>x);for(var b=e[m].dist(e[m+1]),_=-f;_i&&(A+=w-i),!(A=e.length)return;b=e[m].dist(e[m+1]);}var k=A-v,S=e[m],z=e[m+1].sub(S)._unit()._mult(k)._add(S)._round(),I=Math.abs(A-y)0)for(var r=(this.length>>1)-1;r>=0;r--)this._down(r);};function cl(t,e){return te?1:0}function hl(t,e,r){void 0===e&&(e=1),void 0===r&&(r=!1);for(var n=1/0,a=1/0,o=-1/0,s=-1/0,u=t[0],l=0;lo)&&(o=p.x),(!l||p.y>s)&&(s=p.y);}var c=o-n,h=s-a,f=Math.min(c,h),y=f/2,d=new pl([],fl);if(0===f)return new i(n,a);for(var m=n;mg.d||!g.d)&&(g=b,r&&console.log("found best %d after %d probes",Math.round(1e4*b.d)/1e4,x)),b.max-g.d<=e||(y=b.h/2,d.push(new yl(b.p.x-y,b.p.y-y,y,t)),d.push(new yl(b.p.x+y,b.p.y-y,y,t)),d.push(new yl(b.p.x-y,b.p.y+y,y,t)),d.push(new yl(b.p.x+y,b.p.y+y,y,t)),x+=4);}return r&&(console.log("num probes: "+x),console.log("best distance: "+g.d)),g.p}function fl(t,e){return e.max-t.max}function yl(t,e,r,n){this.p=new i(t,e),this.h=r,this.d=function(t,e){for(var r=!1,n=1/0,i=0;it.y!=p.y>t.y&&t.x<(p.x-l.x)*(t.y-l.y)/(p.y-l.y)+l.x&&(r=!r),n=Math.min(n,_a(t,l,p));}return (r?1:-1)*Math.sqrt(n)}(this.p,n),this.max=this.d+this.h*Math.SQRT2;}pl.prototype.push=function(t){this.data.push(t),this.length++,this._up(this.length-1);},pl.prototype.pop=function(){if(0!==this.length){var t=this.data[0],e=this.data.pop();return this.length--,this.length>0&&(this.data[0]=e,this._down(0)),t}},pl.prototype.peek=function(){return this.data[0]},pl.prototype._up=function(t){for(var e=this.data,r=this.compare,n=e[t];t>0;){var i=t-1>>1,a=e[i];if(r(n,a)>=0)break;e[t]=a,t=i;}e[t]=n;},pl.prototype._down=function(t){for(var e=this.data,r=this.compare,n=this.length>>1,i=e[t];t=0)break;e[t]=o,t=a;}e[t]=i;};var dl=e((function(t){t.exports=function(t,e){var r,n,i,a,o,s,u,l;for(r=3&t.length,n=t.length-r,i=e,o=3432918353,s=461845907,l=0;l>>16)*o&65535)<<16)&4294967295)<<15|u>>>17))*s+(((u>>>16)*s&65535)<<16)&4294967295)<<13|i>>>19))+((5*(i>>>16)&65535)<<16)&4294967295))+((58964+(a>>>16)&65535)<<16);switch(u=0,r){case 3:u^=(255&t.charCodeAt(l+2))<<16;case 2:u^=(255&t.charCodeAt(l+1))<<8;case 1:i^=u=(65535&(u=(u=(65535&(u^=255&t.charCodeAt(l)))*o+(((u>>>16)*o&65535)<<16)&4294967295)<<15|u>>>17))*s+(((u>>>16)*s&65535)<<16)&4294967295;}return 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ee(e){return e/360+.5}function te(e){var t=Math.sin(e*Math.PI/180),r=.5-.25*Math.log((1+t)/(1-t))/Math.PI;return r<0?0:r>1?1:r}function re(e,t){for(var r in t)e[r]=t[r];return e}function ie(e){return e.x}function oe(e){return e.y}function ne(e,t,r,i,o,n){var a=o-r,s=n-i;if(0!==a||0!==s){var l=((e-r)*a+(t-i)*s)/(a*a+s*s);l>1?(r=o,i=n):l>0&&(r+=a*l,i+=s*l);}return (a=e-r)*a+(s=t-i)*s}function ae(e,t,r,i){var o={id:void 0===e?null:e,type:t,geometry:r,tags:i,minX:1/0,minY:1/0,maxX:-1/0,maxY:-1/0};return function(e){var t=e.geometry,r=e.type;if("Point"===r||"MultiPoint"===r||"LineString"===r)se(e,t);else if("Polygon"===r||"MultiLineString"===r)for(var i=0;i0&&(a+=i?(o*u-l*n)/2:Math.sqrt(Math.pow(l-o,2)+Math.pow(u-n,2))),o=l,n=u;}var h=t.length-3;t[2]=1,function e(t,r,i,o){for(var n,a=o,s=i-r>>1,l=i-r,u=t[r],h=t[r+1],c=t[i],p=t[i+1],f=r+3;fa)n=f,a=d;else if(d===a){var g=Math.abs(f-s);go&&(n-r>3&&e(t,r,n,o),t[n+2]=a,i-n>3&&e(t,n,i,o));}(t,0,h,r),t[h+2]=1,t.size=Math.abs(a),t.start=0,t.end=t.size;}function ce(e,t,r,i){for(var o=0;o1?1:r}function de(e,t,r,i,o,n,a,s){if(i/=t,n>=(r/=t)&&a=i)return null;for(var l=[],u=0;u=r&&d=i)){var g=[];if("Point"===p||"MultiPoint"===p)ge(c,g,r,i,o);else if("LineString"===p)me(c,g,r,i,o,!1,s.lineMetrics);else if("MultiLineString"===p)ye(c,g,r,i,o,!1);else if("Polygon"===p)ye(c,g,r,i,o,!0);else if("MultiPolygon"===p)for(var m=0;m=r&&a<=i&&(t.push(e[n]),t.push(e[n+1]),t.push(e[n+2]));}}function me(e,t,r,i,o,n,a){for(var s,l,u=ve(e),h=0===o?we:Se,c=e.start,p=0;pr&&(l=h(u,f,d,m,v,r),a&&(u.start=c+s*l)):y>i?x=r&&(l=h(u,f,d,m,v,r),w=!0),x>i&&y<=i&&(l=h(u,f,d,m,v,i),w=!0),!n&&w&&(a&&(u.end=c+s*l),t.push(u),u=ve(e)),a&&(c+=s);}var S=e.length-3;f=e[S],d=e[S+1],g=e[S+2],(y=0===o?f:d)>=r&&y<=i&&xe(u,f,d,g),S=u.length-3,n&&S>=3&&(u[S]!==u[0]||u[S+1]!==u[1])&&xe(u,u[0],u[1],u[2]),u.length&&t.push(u);}function ve(e){var t=[];return t.size=e.size,t.start=e.start,t.end=e.end,t}function ye(e,t,r,i,o,n){for(var a=0;aa.maxX&&(a.maxX=h),c>a.maxY&&(a.maxY=c);}return a}function Pe(e,t,r,i){var o=t.geometry,n=t.type,a=[];if("Point"===n||"MultiPoint"===n)for(var s=0;s0&&t.size<(o?a:i))r.numPoints+=t.length/3;else{for(var s=[],l=0;la)&&(r.numSimplified++,s.push(t[l]),s.push(t[l+1])),r.numPoints++;o&&function(e,t){for(var r=0,i=0,o=e.length,n=o-2;i0===t)for(i=0,o=e.length;i24)throw new Error("maxZoom should be in the 0-24 range");if(t.promoteId&&t.generateId)throw new Error("promoteId and generateId cannot be used together.");var i=function(e,t){var r=[];if("FeatureCollection"===e.type)for(var i=0;i=i;u--){var h=+Date.now();s=this._cluster(s,u),this.trees[u]=new R(s,ie,oe,n,Float32Array),r&&console.log("z%d: %d clusters in %dms",u,s.length,+Date.now()-h);}return r&&console.timeEnd("total time"),this},U.prototype.getClusters=function(e,t){var r=((e[0]+180)%360+360)%360-180,i=Math.max(-90,Math.min(90,e[1])),o=180===e[2]?180:((e[2]+180)%360+360)%360-180,n=Math.max(-90,Math.min(90,e[3]));if(e[2]-e[0]>=360)r=-180,o=180;else if(r>o){var a=this.getClusters([r,i,180,n],t),s=this.getClusters([-180,i,o,n],t);return a.concat(s)}for(var l=this.trees[this._limitZoom(t)],u=[],h=0,c=l.range(ee(r),te(n),ee(o),te(i));h>5,r=e%32,i="No cluster with the specified id.",o=this.trees[r];if(!o)throw new Error(i);var n=o.points[t];if(!n)throw new Error(i);for(var a=this.options.radius/(this.options.extent*Math.pow(2,r-1)),s=[],l=0,u=o.within(n.x,n.y,a);l1?this._map(u,!0):null,m=(l<<5)+(t+1),v=0,y=c;v1&&console.time("creation"),p=this.tiles[c]=_e(e,t,r,i,l),this.tileCoords.push({z:t,x:r,y:i}),u)){u>1&&(console.log("tile z%d-%d-%d (features: %d, points: %d, simplified: %d)",t,r,i,p.numFeatures,p.numPoints,p.numSimplified),console.timeEnd("creation"));var f="z"+t;this.stats[f]=(this.stats[f]||0)+1,this.total++;}if(p.source=e,o){if(t===l.maxZoom||t===o)continue;var d=1<1&&console.time("clipping");var g,m,v,y,x,w,S=.5*l.buffer/l.extent,M=.5-S,b=.5+S,k=1+S;g=m=v=y=null,x=de(e,h,r-S,r+b,0,p.minX,p.maxX,l),w=de(e,h,r+M,r+k,0,p.minX,p.maxX,l),e=null,x&&(g=de(x,h,i-S,i+b,1,p.minY,p.maxY,l),m=de(x,h,i+M,i+k,1,p.minY,p.maxY,l),x=null),w&&(v=de(w,h,i-S,i+b,1,p.minY,p.maxY,l),y=de(w,h,i+M,i+k,1,p.minY,p.maxY,l),w=null),u>1&&console.timeEnd("clipping"),s.push(g||[],t+1,2*r,2*i),s.push(m||[],t+1,2*r,2*i+1),s.push(v||[],t+1,2*r+1,2*i),s.push(y||[],t+1,2*r+1,2*i+1);}}},Le.prototype.getTile=function(e,t,r){var i=this.options,o=i.extent,n=i.debug;if(e<0||e>24)return null;var a=1<1&&console.log("drilling down to z%d-%d-%d",e,t,r);for(var l,u=e,h=t,c=r;!l&&u>0;)u--,h=Math.floor(h/2),c=Math.floor(c/2),l=this.tiles[De(u,h,c)];return l&&l.source?(n>1&&console.log("found parent tile z%d-%d-%d",u,h,c),n>1&&console.time("drilling down"),this.splitTile(l.source,u,h,c,e,t,r),n>1&&console.timeEnd("drilling down"),this.tiles[s]?ke(this.tiles[s],o):null):null};var ze=function(t){function r(e,r,i,o){t.call(this,e,r,i,Ce),o&&(this.loadGeoJSON=o);}return t&&(r.__proto__=t),r.prototype=Object.create(t&&t.prototype),r.prototype.constructor=r,r.prototype.loadData=function(e,t){this._pendingCallback&&this._pendingCallback(null,{abandoned:!0}),this._pendingCallback=t,this._pendingLoadDataParams=e,this._state&&"Idle"!==this._state?this._state="NeedsLoadData":(this._state="Coalescing",this._loadData());},r.prototype._loadData=function(){var t=this;if(this._pendingCallback&&this._pendingLoadDataParams){var r=this._pendingCallback,i=this._pendingLoadDataParams;delete this._pendingCallback,delete this._pendingLoadDataParams;var o=!!(i&&i.request&&i.request.collectResourceTiming)&&new l.Performance(i.request);this.loadGeoJSON(i,(function(n,a){if(n||!a)return r(n);if("object"!=typeof a)return r(new Error("Input data given to '"+i.source+"' is not a valid GeoJSON object."));y(a,!0);try{t._geoJSONIndex=i.cluster?new U(function(t){var r=t.superclusterOptions,i=t.clusterProperties;if(!i||!r)return r;for(var o={},n={},a={accumulated:null,zoom:0},s={properties:null},l=Object.keys(i),u=0,h=l;u=0?0:e.button},i.remove=function(t){t.parentNode&&t.parentNode.removeChild(t);};var p=function(e){function i(){e.call(this),this.images={},this.updatedImages={},this.callbackDispatchedThisFrame={},this.loaded=!1,this.requestors=[],this.patterns={},this.atlasImage=new t.RGBAImage({width:1,height:1}),this.dirty=!0;}return e&&(i.__proto__=e),i.prototype=Object.create(e&&e.prototype),i.prototype.constructor=i,i.prototype.isLoaded=function(){return this.loaded},i.prototype.setLoaded=function(t){if(this.loaded!==t&&(this.loaded=t,t)){for(var e=0,i=this.requestors;e=0?1.2:1));}function g(t,e,i,o,r,a,n){for(var s=0;s65535)e(new Error("glyphs > 65535 not supported"));else{var l=a.requests[s];l||(l=a.requests[s]=[],y.loadGlyphRange(i,s,o.url,o.requestManager,(function(t,e){if(e)for(var i in e)o._doesCharSupportLocalGlyph(+i)||(a.glyphs[+i]=e[+i]);for(var r=0,n=l;rthis.height)return t.warnOnce("LineAtlas out of space"),null;for(var a=0,n=0;n=o&&e.x=r&&e.y0&&(l[new t.OverscaledTileID(e.overscaledZ,a,i.z,r,i.y-1).key]={backfilled:!1},l[new t.OverscaledTileID(e.overscaledZ,e.wrap,i.z,i.x,i.y-1).key]={backfilled:!1},l[new t.OverscaledTileID(e.overscaledZ,s,i.z,n,i.y-1).key]={backfilled:!1}),i.y+10&&(o.resourceTiming=e._resourceTiming,e._resourceTiming=[]),e.fire(new t.Event("data",o));}}));},i.prototype.onAdd=function(t){this.map=t,this.load();},i.prototype.setData=function(e){var i=this;return this._data=e,this.fire(new t.Event("dataloading",{dataType:"source"})),this._updateWorkerData((function(e){if(e)i.fire(new t.ErrorEvent(e));else{var o={dataType:"source",sourceDataType:"content"};i._collectResourceTiming&&i._resourceTiming&&i._resourceTiming.length>0&&(o.resourceTiming=i._resourceTiming,i._resourceTiming=[]),i.fire(new t.Event("data",o));}})),this},i.prototype.getClusterExpansionZoom=function(t,e){return this.actor.send("geojson.getClusterExpansionZoom",{clusterId:t,source:this.id},e),this},i.prototype.getClusterChildren=function(t,e){return this.actor.send("geojson.getClusterChildren",{clusterId:t,source:this.id},e),this},i.prototype.getClusterLeaves=function(t,e,i,o){return this.actor.send("geojson.getClusterLeaves",{source:this.id,clusterId:t,limit:e,offset:i},o),this},i.prototype._updateWorkerData=function(e){var i=this;this._loaded=!1;var o=t.extend({},this.workerOptions),r=this._data;"string"==typeof r?(o.request=this.map._requestManager.transformRequest(t.browser.resolveURL(r),t.ResourceType.Source),o.request.collectResourceTiming=this._collectResourceTiming):o.data=JSON.stringify(r),this.actor.send(this.type+".loadData",o,(function(t,r){i._removed||r&&r.abandoned||(i._loaded=!0,r&&r.resourceTiming&&r.resourceTiming[i.id]&&(i._resourceTiming=r.resourceTiming[i.id].slice(0)),i.actor.send(i.type+".coalesce",{source:o.source},null),e(t));}));},i.prototype.loaded=function(){return this._loaded},i.prototype.loadTile=function(e,i){var o=this,r=e.actor?"reloadTile":"loadTile";e.actor=this.actor;var a={type:this.type,uid:e.uid,tileID:e.tileID,zoom:e.tileID.overscaledZ,maxZoom:this.maxzoom,tileSize:this.tileSize,source:this.id,pixelRatio:t.browser.devicePixelRatio,showCollisionBoxes:this.map.showCollisionBoxes};e.request=this.actor.send(r,a,(function(t,a){return delete e.request,e.unloadVectorData(),e.aborted?i(null):t?i(t):(e.loadVectorData(a,o.map.painter,"reloadTile"===r),i(null))}));},i.prototype.abortTile=function(t){t.request&&(t.request.cancel(),delete t.request),t.aborted=!0;},i.prototype.unloadTile=function(t){t.unloadVectorData(),this.actor.send("removeTile",{uid:t.uid,type:this.type,source:this.id});},i.prototype.onRemove=function(){this._removed=!0,this.actor.send("removeSource",{type:this.type,source:this.id});},i.prototype.serialize=function(){return t.extend({},this._options,{type:this.type,data:this._data})},i.prototype.hasTransition=function(){return !1},i}(t.Evented),D=function(e){function i(t,i,o,r){e.call(this),this.id=t,this.dispatcher=o,this.coordinates=i.coordinates,this.type="image",this.minzoom=0,this.maxzoom=22,this.tileSize=512,this.tiles={},this._loaded=!1,this.setEventedParent(r),this.options=i;}return e&&(i.__proto__=e),i.prototype=Object.create(e&&e.prototype),i.prototype.constructor=i,i.prototype.load=function(e,i){var o=this;this._loaded=!1,this.fire(new t.Event("dataloading",{dataType:"source"})),this.url=this.options.url,t.getImage(this.map._requestManager.transformRequest(this.url,t.ResourceType.Image),(function(r,a){o._loaded=!0,r?o.fire(new t.ErrorEvent(r)):a&&(o.image=a,e&&(o.coordinates=e),i&&i(),o._finishLoading());}));},i.prototype.loaded=function(){return this._loaded},i.prototype.updateImage=function(t){var e=this;return this.image&&t.url?(this.options.url=t.url,this.load(t.coordinates,(function(){e.texture=null;})),this):this},i.prototype._finishLoading=function(){this.map&&(this.setCoordinates(this.coordinates),this.fire(new t.Event("data",{dataType:"source",sourceDataType:"metadata"})));},i.prototype.onAdd=function(t){this.map=t,this.load();},i.prototype.setCoordinates=function(e){var i=this;this.coordinates=e;var o=e.map(t.MercatorCoordinate.fromLngLat);this.tileID=function(e){for(var i=1/0,o=1/0,r=-1/0,a=-1/0,n=0,s=e;ni.end(0)?this.fire(new t.ErrorEvent(new t.ValidationError("Playback for this video can be set only between the "+i.start(0)+" and "+i.end(0)+"-second mark."))):this.video.currentTime=e;}},i.prototype.getVideo=function(){return this.video},i.prototype.onAdd=function(t){this.map||(this.map=t,this.load(),this.video&&(this.video.play(),this.setCoordinates(this.coordinates)));},i.prototype.prepare=function(){if(!(0===Object.keys(this.tiles).length||this.video.readyState<2)){var e=this.map.painter.context,i=e.gl;for(var o in this.boundsBuffer||(this.boundsBuffer=e.createVertexBuffer(this._boundsArray,t.rasterBoundsAttributes.members)),this.boundsSegments||(this.boundsSegments=t.SegmentVector.simpleSegment(0,0,4,2)),this.texture?this.video.paused||(this.texture.bind(i.LINEAR,i.CLAMP_TO_EDGE),i.texSubImage2D(i.TEXTURE_2D,0,0,0,i.RGBA,i.UNSIGNED_BYTE,this.video)):(this.texture=new t.Texture(e,this.video,i.RGBA),this.texture.bind(i.LINEAR,i.CLAMP_TO_EDGE)),this.tiles){var r=this.tiles[o];"loaded"!==r.state&&(r.state="loaded",r.texture=this.texture);}}},i.prototype.serialize=function(){return {type:"video",urls:this.urls,coordinates:this.coordinates}},i.prototype.hasTransition=function(){return this.video&&!this.video.paused},i}(D),R=function(e){function i(i,o,r,a){e.call(this,i,o,r,a),o.coordinates?Array.isArray(o.coordinates)&&4===o.coordinates.length&&!o.coordinates.some((function(t){return !Array.isArray(t)||2!==t.length||t.some((function(t){return "number"!=typeof t}))}))||this.fire(new t.ErrorEvent(new t.ValidationError("sources."+i,null,'"coordinates" property must be an array of 4 longitude/latitude array pairs'))):this.fire(new t.ErrorEvent(new t.ValidationError("sources."+i,null,'missing required property "coordinates"'))),o.animate&&"boolean"!=typeof o.animate&&this.fire(new t.ErrorEvent(new t.ValidationError("sources."+i,null,'optional "animate" property must be a boolean value'))),o.canvas?"string"==typeof o.canvas||o.canvas instanceof t.window.HTMLCanvasElement||this.fire(new t.ErrorEvent(new t.ValidationError("sources."+i,null,'"canvas" must be either a string representing the ID of the canvas element from which to read, or an HTMLCanvasElement instance'))):this.fire(new t.ErrorEvent(new t.ValidationError("sources."+i,null,'missing required property "canvas"'))),this.options=o,this.animate=void 0===o.animate||o.animate;}return e&&(i.__proto__=e),i.prototype=Object.create(e&&e.prototype),i.prototype.constructor=i,i.prototype.load=function(){this._loaded=!0,this.canvas||(this.canvas=this.options.canvas instanceof t.window.HTMLCanvasElement?this.options.canvas:t.window.document.getElementById(this.options.canvas)),this.width=this.canvas.width,this.height=this.canvas.height,this._hasInvalidDimensions()?this.fire(new t.ErrorEvent(new Error("Canvas dimensions cannot be less than or equal to zero."))):(this.play=function(){this._playing=!0,this.map.triggerRepaint();},this.pause=function(){this._playing&&(this.prepare(),this._playing=!1);},this._finishLoading());},i.prototype.getCanvas=function(){return this.canvas},i.prototype.onAdd=function(t){this.map=t,this.load(),this.canvas&&this.animate&&this.play();},i.prototype.onRemove=function(){this.pause();},i.prototype.prepare=function(){var e=!1;if(this.canvas.width!==this.width&&(this.width=this.canvas.width,e=!0),this.canvas.height!==this.height&&(this.height=this.canvas.height,e=!0),!this._hasInvalidDimensions()&&0!==Object.keys(this.tiles).length){var i=this.map.painter.context,o=i.gl;for(var r in this.boundsBuffer||(this.boundsBuffer=i.createVertexBuffer(this._boundsArray,t.rasterBoundsAttributes.members)),this.boundsSegments||(this.boundsSegments=t.SegmentVector.simpleSegment(0,0,4,2)),this.texture?(e||this._playing)&&this.texture.update(this.canvas,{premultiply:!0}):this.texture=new t.Texture(i,this.canvas,o.RGBA,{premultiply:!0}),this.tiles){var a=this.tiles[r];"loaded"!==a.state&&(a.state="loaded",a.texture=this.texture);}}},i.prototype.serialize=function(){return {type:"canvas",coordinates:this.coordinates}},i.prototype.hasTransition=function(){return this._playing},i.prototype._hasInvalidDimensions=function(){for(var t=0,e=[this.canvas.width,this.canvas.height];tthis.max){var n=this._getAndRemoveByKey(this.order[0]);n&&this.onRemove(n);}return this},U.prototype.has=function(t){return t.wrapped().key in this.data},U.prototype.getAndRemove=function(t){return this.has(t)?this._getAndRemoveByKey(t.wrapped().key):null},U.prototype._getAndRemoveByKey=function(t){var e=this.data[t].shift();return e.timeout&&clearTimeout(e.timeout),0===this.data[t].length&&delete this.data[t],this.order.splice(this.order.indexOf(t),1),e.value},U.prototype.get=function(t){return this.has(t)?this.data[t.wrapped().key][0].value:null},U.prototype.remove=function(t,e){if(!this.has(t))return this;var i=t.wrapped().key,o=void 0===e?0:this.data[i].indexOf(e),r=this.data[i][o];return this.data[i].splice(o,1),r.timeout&&clearTimeout(r.timeout),0===this.data[i].length&&delete this.data[i],this.onRemove(r.value),this.order.splice(this.order.indexOf(i),1),this},U.prototype.setMaxSize=function(t){for(this.max=t;this.order.length>this.max;){var e=this._getAndRemoveByKey(this.order[0]);e&&this.onRemove(e);}return this};var N=function(t,e,i){this.context=t;var o=t.gl;this.buffer=o.createBuffer(),this.dynamicDraw=Boolean(i),this.context.unbindVAO(),t.bindElementBuffer.set(this.buffer),o.bufferData(o.ELEMENT_ARRAY_BUFFER,e.arrayBuffer,this.dynamicDraw?o.DYNAMIC_DRAW:o.STATIC_DRAW),this.dynamicDraw||delete e.arrayBuffer;};N.prototype.bind=function(){this.context.bindElementBuffer.set(this.buffer);},N.prototype.updateData=function(t){var e=this.context.gl;this.context.unbindVAO(),this.bind(),e.bufferSubData(e.ELEMENT_ARRAY_BUFFER,0,t.arrayBuffer);},N.prototype.destroy=function(){var t=this.context.gl;this.buffer&&(t.deleteBuffer(this.buffer),delete this.buffer);};var Z={Int8:"BYTE",Uint8:"UNSIGNED_BYTE",Int16:"SHORT",Uint16:"UNSIGNED_SHORT",Int32:"INT",Uint32:"UNSIGNED_INT",Float32:"FLOAT"},V=function(t,e,i,o){this.length=e.length,this.attributes=i,this.itemSize=e.bytesPerElement,this.dynamicDraw=o,this.context=t;var r=t.gl;this.buffer=r.createBuffer(),t.bindVertexBuffer.set(this.buffer),r.bufferData(r.ARRAY_BUFFER,e.arrayBuffer,this.dynamicDraw?r.DYNAMIC_DRAW:r.STATIC_DRAW),this.dynamicDraw||delete e.arrayBuffer;};V.prototype.bind=function(){this.context.bindVertexBuffer.set(this.buffer);},V.prototype.updateData=function(t){var e=this.context.gl;this.bind(),e.bufferSubData(e.ARRAY_BUFFER,0,t.arrayBuffer);},V.prototype.enableAttributes=function(t,e){for(var i=0;i1||(Math.abs(i)>1&&(1===Math.abs(i+r)?i+=r:1===Math.abs(i-r)&&(i-=r)),e.dem&&t.dem&&(t.dem.backfillBorder(e.dem,i,o),t.neighboringTiles&&t.neighboringTiles[a]&&(t.neighboringTiles[a].backfilled=!0)));}},i.prototype.getTile=function(t){return this.getTileByID(t.key)},i.prototype.getTileByID=function(t){return this._tiles[t]},i.prototype.getZoom=function(t){return t.zoom+t.scaleZoom(t.tileSize/this._source.tileSize)},i.prototype._retainLoadedChildren=function(t,e,i,o){for(var r in this._tiles){var a=this._tiles[r];if(!(o[r]||!a.hasData()||a.tileID.overscaledZ<=e||a.tileID.overscaledZ>i)){for(var n=a.tileID;a&&a.tileID.overscaledZ>e+1;){var s=a.tileID.scaledTo(a.tileID.overscaledZ-1);(a=this._tiles[s.key])&&a.hasData()&&(n=s);}for(var l=n;l.overscaledZ>e;)if(t[(l=l.scaledTo(l.overscaledZ-1)).key]){o[n.key]=n;break}}}},i.prototype.findLoadedParent=function(t,e){for(var i=t.overscaledZ-1;i>=e;i--){var o=t.scaledTo(i);if(!o)return;var r=String(o.key),a=this._tiles[r];if(a&&a.hasData())return a;if(this._cache.has(o))return this._cache.get(o)}},i.prototype.updateCacheSize=function(t){var e=(Math.ceil(t.width/this._source.tileSize)+1)*(Math.ceil(t.height/this._source.tileSize)+1),i=Math.floor(5*e),o="number"==typeof this._maxTileCacheSize?Math.min(this._maxTileCacheSize,i):i;this._cache.setMaxSize(o);},i.prototype.handleWrapJump=function(t){var e=(t-(void 0===this._prevLng?t:this._prevLng))/360,i=Math.round(e);if(this._prevLng=t,i){var o={};for(var r in this._tiles){var a=this._tiles[r];a.tileID=a.tileID.unwrapTo(a.tileID.wrap+i),o[a.tileID.key]=a;}for(var n in this._tiles=o,this._timers)clearTimeout(this._timers[n]),delete this._timers[n];for(var s in this._tiles){var l=this._tiles[s];this._setTileReloadTimer(s,l);}}},i.prototype.update=function(e){var o=this;if(this.transform=e,this._sourceLoaded&&!this._paused){var r;this.updateCacheSize(e),this.handleWrapJump(this.transform.center.lng),this._coveredTiles={},this.used?this._source.tileID?r=e.getVisibleUnwrappedCoordinates(this._source.tileID).map((function(e){return new t.OverscaledTileID(e.canonical.z,e.wrap,e.canonical.z,e.canonical.x,e.canonical.y)})):(r=e.coveringTiles({tileSize:this._source.tileSize,minzoom:this._source.minzoom,maxzoom:this._source.maxzoom,roundZoom:this._source.roundZoom,reparseOverscaled:this._source.reparseOverscaled}),this._source.hasTile&&(r=r.filter((function(t){return o._source.hasTile(t)})))):r=[];var a=(this._source.roundZoom?Math.round:Math.floor)(this.getZoom(e)),n=Math.max(a-i.maxOverzooming,this._source.minzoom),s=Math.max(a+i.maxUnderzooming,this._source.minzoom),l=this._updateRetainedTiles(r,a);if(Mt(this._source.type)){for(var c={},u={},h=0,p=Object.keys(l);hthis._source.maxzoom){var m=_.children(this._source.maxzoom)[0],g=this.getTile(m);if(g&&g.hasData()){o[m.key]=m;continue}}else{var v=_.children(this._source.maxzoom);if(o[v[0].key]&&o[v[1].key]&&o[v[2].key]&&o[v[3].key])continue}for(var y=f.wasRequested(),x=_.overscaledZ-1;x>=a;--x){var b=_.scaledTo(x);if(r[b.key])break;if(r[b.key]=!0,!(f=this.getTile(b))&&y&&(f=this._addTile(b)),f&&(o[b.key]=b,y=f.wasRequested(),f.hasData()))break}}}return o},i.prototype._addTile=function(e){var i=this._tiles[e.key];if(i)return i;(i=this._cache.getAndRemove(e))&&(this._setTileReloadTimer(e.key,i),i.tileID=e,this._state.initializeTileState(i,this.map?this.map.painter:null),this._cacheTimers[e.key]&&(clearTimeout(this._cacheTimers[e.key]),delete this._cacheTimers[e.key],this._setTileReloadTimer(e.key,i)));var o=Boolean(i);return o||(i=new t.Tile(e,this._source.tileSize*e.overscaleFactor()),this._loadTile(i,this._tileLoaded.bind(this,i,e.key,i.state))),i?(i.uses++,this._tiles[e.key]=i,o||this._source.fire(new t.Event("dataloading",{tile:i,coord:i.tileID,dataType:"source"})),i):null},i.prototype._setTileReloadTimer=function(t,e){var i=this;t in this._timers&&(clearTimeout(this._timers[t]),delete this._timers[t]);var o=e.getExpiryTimeout();o&&(this._timers[t]=setTimeout((function(){i._reloadTile(t,"expired"),delete i._timers[t];}),o));},i.prototype._removeTile=function(t){var e=this._tiles[t];e&&(e.uses--,delete this._tiles[t],this._timers[t]&&(clearTimeout(this._timers[t]),delete this._timers[t]),e.uses>0||(e.hasData()&&"reloading"!==e.state?this._cache.add(e.tileID,e,e.getExpiryTimeout()):(e.aborted=!0,this._abortTile(e),this._unloadTile(e))));},i.prototype.clearTiles=function(){for(var t in this._shouldReloadOnResume=!1,this._paused=!1,this._tiles)this._removeTile(t);this._cache.reset();},i.prototype.tilesIn=function(e,i,o){var r=this,a=[],n=this.transform;if(!n)return a;for(var s=o?n.getCameraQueryGeometry(e):e,l=e.map((function(t){return n.pointCoordinate(t)})),c=s.map((function(t){return n.pointCoordinate(t)})),u=this.getIds(),h=1/0,p=1/0,d=-1/0,_=-1/0,f=0,m=c;f=0&&g[1].y+m>=0){var v=l.map((function(t){return s.getTilePoint(t)})),y=c.map((function(t){return s.getTilePoint(t)}));a.push({tile:o,tileID:s,queryGeometry:v,cameraQueryGeometry:y,scale:f});}}},y=0;y=t.browser.now())return !0}return !1},i.prototype.setFeatureState=function(t,e,i){t=t||"_geojsonTileLayer",this._state.updateState(t,e,i);},i.prototype.removeFeatureState=function(t,e,i){t=t||"_geojsonTileLayer",this._state.removeFeatureState(t,e,i);},i.prototype.getFeatureState=function(t,e){return t=t||"_geojsonTileLayer",this._state.getState(t,e)},i}(t.Evented);function Dt(t,e){return t%32-e%32||e-t}function Mt(t){return "raster"===t||"image"===t||"video"===t}function Rt(){return new t.window.Worker(or.workerUrl)}Lt.maxOverzooming=10,Lt.maxUnderzooming=3;var At=function(){this.active={};};At.prototype.acquire=function(t){if(!this.workers)for(this.workers=[];this.workers.length=-e[0]&&i<=e[0]&&o>=-e[1]&&o<=e[1]}function $t(e,i,o,r,a,n,s,l){var c=r?e.textSizeData:e.iconSizeData,u=t.evaluateSizeForZoom(c,o.transform.zoom),h=[256/o.width*2+1,256/o.height*2+1],p=r?e.text.dynamicLayoutVertexArray:e.icon.dynamicLayoutVertexArray;p.clear();for(var d=e.lineVertexArray,_=r?e.text.placedSymbolArray:e.icon.placedSymbolArray,f=o.transform.width/o.transform.height,m=!1,g=0;g<_.length;g++){var v=_.get(g);if(v.hidden||v.writingMode===t.WritingMode.vertical&&!m)ne(v.numGlyphs,p);else{m=!1;var y=[v.anchorX,v.anchorY,0,1];if(t.transformMat4(y,y,i),Qt(y,h)){var x=.5+y[3]/o.transform.cameraToCenterDistance*.5,b=t.evaluateSizeForFeature(c,u,v),w=s?b*x:b/x,E=new t.Point(v.anchorX,v.anchorY),T=Yt(E,a).point,I={},C=ie(v,w,!1,l,i,a,n,e.glyphOffsetArray,d,p,T,E,I,f);m=C.useVertical,(C.notEnoughRoom||m||C.needsFlipping&&ie(v,w,!0,l,i,a,n,e.glyphOffsetArray,d,p,T,E,I,f).notEnoughRoom)&&ne(v.numGlyphs,p);}else ne(v.numGlyphs,p);}}r?e.text.dynamicLayoutVertexBuffer.updateData(p):e.icon.dynamicLayoutVertexBuffer.updateData(p);}function te(t,e,i,o,r,a,n,s,l,c,u,h){var p=s.glyphStartIndex+s.numGlyphs,d=s.lineStartIndex,_=s.lineStartIndex+s.lineLength,f=e.getoffsetX(s.glyphStartIndex),m=e.getoffsetX(p-1),g=re(t*f,i,o,r,a,n,s.segment,d,_,l,c,u,h);if(!g)return null;var v=re(t*m,i,o,r,a,n,s.segment,d,_,l,c,u,h);return v?{first:g,last:v}:null}function ee(e,i,o,r){if(e===t.WritingMode.horizontal&&Math.abs(o.y-i.y)>Math.abs(o.x-i.x)*r)return {useVertical:!0};return (e===t.WritingMode.vertical?i.yo.x)?{needsFlipping:!0}:null}function ie(e,i,o,r,a,n,s,l,c,u,h,p,d,_){var f,m=i/24,g=e.lineOffsetX*m,v=e.lineOffsetY*m;if(e.numGlyphs>1){var y=e.glyphStartIndex+e.numGlyphs,x=e.lineStartIndex,b=e.lineStartIndex+e.lineLength,w=te(m,l,g,v,o,h,p,e,c,n,d,!1);if(!w)return {notEnoughRoom:!0};var E=Yt(w.first.point,s).point,T=Yt(w.last.point,s).point;if(r&&!o){var I=ee(e.writingMode,E,T,_);if(I)return I}f=[w.first];for(var C=e.glyphStartIndex+1;C0?L.point:oe(p,z,S,1,a),M=ee(e.writingMode,S,D,_);if(M)return M}var R=re(m*l.getoffsetX(e.glyphStartIndex),g,v,o,h,p,e.segment,e.lineStartIndex,e.lineStartIndex+e.lineLength,c,n,d,!1);if(!R)return {notEnoughRoom:!0};f=[R];}for(var A=0,k=f;A0?1:-1,m=0;r&&(f*=-1,m=Math.PI),f<0&&(m+=Math.PI);for(var g=f>0?l+s:l+s+1,v=g,y=a,x=a,b=0,w=0,E=Math.abs(_);b+w<=E;){if((g+=f)=c)return null;if(x=y,void 0===(y=p[g])){var T=new t.Point(u.getx(g),u.gety(g)),I=Yt(T,h);if(I.signedDistanceFromCamera>0)y=p[g]=I.point;else{var C=g-f;y=oe(0===b?n:new t.Point(u.getx(C),u.gety(C)),T,x,E-b+1,h);}}b+=w,w=x.dist(y);}var S=(E-b)/w,P=y.sub(x),z=P.mult(S)._add(x);return z._add(P._unit()._perp()._mult(o*f)),{point:z,angle:m+Math.atan2(y.y-x.y,y.x-x.x),tileDistance:d?{prevTileDistance:g-f===v?0:u.gettileUnitDistanceFromAnchor(g-f),lastSegmentViewportDistance:E-b}:null}}Ht.prototype.keysLength=function(){return this.boxKeys.length+this.circleKeys.length},Ht.prototype.insert=function(t,e,i,o,r){this._forEachCell(e,i,o,r,this._insertBoxCell,this.boxUid++),this.boxKeys.push(t),this.bboxes.push(e),this.bboxes.push(i),this.bboxes.push(o),this.bboxes.push(r);},Ht.prototype.insertCircle=function(t,e,i,o){this._forEachCell(e-o,i-o,e+o,i+o,this._insertCircleCell,this.circleUid++),this.circleKeys.push(t),this.circles.push(e),this.circles.push(i),this.circles.push(o);},Ht.prototype._insertBoxCell=function(t,e,i,o,r,a){this.boxCells[r].push(a);},Ht.prototype._insertCircleCell=function(t,e,i,o,r,a){this.circleCells[r].push(a);},Ht.prototype._query=function(t,e,i,o,r,a){if(i<0||t>this.width||o<0||e>this.height)return !r&&[];var n=[];if(t<=0&&e<=0&&this.width<=i&&this.height<=o){if(r)return !0;for(var s=0;s0:n},Ht.prototype._queryCircle=function(t,e,i,o,r){var a=t-i,n=t+i,s=e-i,l=e+i;if(n<0||a>this.width||l<0||s>this.height)return !o&&[];var c=[],u={hitTest:o,circle:{x:t,y:e,radius:i},seenUids:{box:{},circle:{}}};return this._forEachCell(a,s,n,l,this._queryCellCircle,c,u,r),o?c.length>0:c},Ht.prototype.query=function(t,e,i,o,r){return this._query(t,e,i,o,!1,r)},Ht.prototype.hitTest=function(t,e,i,o,r){return this._query(t,e,i,o,!0,r)},Ht.prototype.hitTestCircle=function(t,e,i,o){return this._queryCircle(t,e,i,!0,o)},Ht.prototype._queryCell=function(t,e,i,o,r,a,n,s){var l=n.seenUids,c=this.boxCells[r];if(null!==c)for(var u=this.bboxes,h=0,p=c;h=u[_+0]&&o>=u[_+1]&&(!s||s(this.boxKeys[d]))){if(n.hitTest)return a.push(!0),!0;a.push({key:this.boxKeys[d],x1:u[_],y1:u[_+1],x2:u[_+2],y2:u[_+3]});}}}var f=this.circleCells[r];if(null!==f)for(var m=this.circles,g=0,v=f;gn*n+s*s},Ht.prototype._circleAndRectCollide=function(t,e,i,o,r,a,n){var s=(a-o)/2,l=Math.abs(t-(o+s));if(l>s+i)return !1;var c=(n-r)/2,u=Math.abs(e-(r+c));if(u>c+i)return !1;if(l<=s||u<=c)return !0;var h=l-s,p=u-c;return h*h+p*p<=i*i};var ae=new Float32Array([-1/0,-1/0,0,-1/0,-1/0,0,-1/0,-1/0,0,-1/0,-1/0,0]);function ne(t,e){for(var i=0;iS)ce(e,P,!1);else{var R=this.projectPoint(c,z,L),A=D*T;if(_.length>0){var k=R.x-_[_.length-4],B=R.y-_[_.length-3];if(A*A*2>k*k+B*B)if(P+8-C&&O=this.screenRightBoundary||o<100||e>this.screenBottomBoundary},le.prototype.isInsideGrid=function(t,e,i,o){return i>=0&&t=0&&e0)return this.prevPlacement&&this.prevPlacement.variableOffsets[h.crossTileID]&&this.prevPlacement.placements[h.crossTileID]&&this.prevPlacement.placements[h.crossTileID].text&&(_=this.prevPlacement.variableOffsets[h.crossTileID].anchor),this.variableOffsets[h.crossTileID]={textOffset:f,width:i,height:o,anchor:t,textBoxScale:r,prevAnchor:_},this.markUsedJustification(p,t,h,d),p.allowVerticalPlacement&&(this.markUsedOrientation(p,d,h),this.placedOrientations[h.crossTileID]=d),{shift:m,placedGlyphBoxes:g}},ve.prototype.placeLayerBucket=function(e,i,o,r,a,n,s,l,c,u){var h=this,p=e.layers[0].layout,d=t.evaluateSizeForZoom(e.textSizeData,this.transform.zoom),_=p.get("text-optional"),f=p.get("icon-optional"),m=p.get("text-allow-overlap"),g=p.get("icon-allow-overlap"),v=m&&(g||!e.hasIconData()||f),y=g&&(m||!e.hasTextData()||_),x=this.collisionGroups.get(e.sourceID),b="map"===p.get("text-rotation-alignment"),w="map"===p.get("text-pitch-alignment"),E="none"!==p.get("icon-text-fit"),T="viewport-y"===p.get("symbol-z-order");!e.collisionArrays&&u&&e.deserializeCollisionBoxes(u);var I=function(r,u){if(!c[r.crossTileID])if(l)h.placements[r.crossTileID]=new de(!1,!1,!1);else{var g,T=!1,I=!1,C=!0,S=null,P={box:null,offscreen:null},z={box:null,offscreen:null},L=null,D=null,M=0,R=0,A=0;u.textFeatureIndex&&(M=u.textFeatureIndex),u.verticalTextFeatureIndex&&(R=u.verticalTextFeatureIndex);var k=u.textBox;if(k){var B=function(i){var o=t.WritingMode.horizontal;if(e.allowVerticalPlacement&&!i&&h.prevPlacement){var a=h.prevPlacement.placedOrientations[r.crossTileID];a&&(h.placedOrientations[r.crossTileID]=a,o=a,h.markUsedOrientation(e,o,r));}return o},O=function(i,o){if(e.allowVerticalPlacement&&r.numVerticalGlyphVertices>0&&u.verticalTextBox)for(var a=0,n=e.writingModes;a0&&(F=F.filter((function(t){return t!==U.anchor}))).unshift(U.anchor);}var N=function(t,o){for(var a=t.x2-t.x1,s=t.y2-t.y1,l=r.textBoxScale,c={box:[],offscreen:!1},u=m?2*F.length:F.length,p=0;p=F.length,f=h.attemptAnchorPlacement(d,t,a,s,l,b,w,n,i,x,_,r,e,o);if(f&&(c=f.placedGlyphBoxes)&&c.box&&c.box.length){T=!0,S=f.shift;break}}return c};O((function(){return N(k,t.WritingMode.horizontal)}),(function(){var i=u.verticalTextBox,o=P&&P.box&&P.box.length;return e.allowVerticalPlacement&&!o&&r.numVerticalGlyphVertices>0&&i?N(i,t.WritingMode.vertical):{box:null,offscreen:null}})),P&&(T=P.box,C=P.offscreen);var Z=B(P&&P.box);if(!T&&h.prevPlacement){var V=h.prevPlacement.variableOffsets[r.crossTileID];V&&(h.variableOffsets[r.crossTileID]=V,h.markUsedJustification(e,V.anchor,r,Z));}}else{var q=function(t,o){var a=h.collisionIndex.placeCollisionBox(t,p.get("text-allow-overlap"),n,i,x.predicate);return a&&a.box&&a.box.length&&(h.markUsedOrientation(e,o,r),h.placedOrientations[r.crossTileID]=o),a};O((function(){return q(k,t.WritingMode.horizontal)}),(function(){var i=u.verticalTextBox;return e.allowVerticalPlacement&&r.numVerticalGlyphVertices>0&&i?q(i,t.WritingMode.vertical):{box:null,offscreen:null}})),B(P&&P.box&&P.box.length);}}T=(g=P)&&g.box&&g.box.length>0,C=g&&g.offscreen;var j=u.textCircles;if(j){var G=e.text.placedSymbolArray.get(r.centerJustifiedTextSymbolIndex),W=t.evaluateSizeForFeature(e.textSizeData,d,G);L=h.collisionIndex.placeCollisionCircles(j,p.get("text-allow-overlap"),a,n,G,e.lineVertexArray,e.glyphOffsetArray,W,i,o,s,w,x.predicate),T=p.get("text-allow-overlap")||L.circles.length>0,C=C&&L.offscreen;}if(u.iconFeatureIndex&&(A=u.iconFeatureIndex),u.iconBox){var X=E&&S?ge(u.iconBox,S.x,S.y,b,w,h.transform.angle):u.iconBox;I=(D=h.collisionIndex.placeCollisionBox(X,p.get("icon-allow-overlap"),n,i,x.predicate)).box.length>0,C=C&&D.offscreen;}var H=_||0===r.numHorizontalGlyphVertices&&0===r.numVerticalGlyphVertices,K=f||0===r.numIconVertices;H||K?K?H||(I=I&&T):T=I&&T:I=T=I&&T,T&&g&&g.box&&(z&&z.box&&R?h.collisionIndex.insertCollisionBox(g.box,p.get("text-ignore-placement"),e.bucketInstanceId,R,x.ID):h.collisionIndex.insertCollisionBox(g.box,p.get("text-ignore-placement"),e.bucketInstanceId,M,x.ID)),I&&D&&h.collisionIndex.insertCollisionBox(D.box,p.get("icon-ignore-placement"),e.bucketInstanceId,A,x.ID),T&&L&&h.collisionIndex.insertCollisionCircles(L.circles,p.get("text-ignore-placement"),e.bucketInstanceId,M,x.ID),h.placements[r.crossTileID]=new de(T||v,I||y,C||e.justReloaded),c[r.crossTileID]=!0;}};if(T)for(var C=e.getSortedSymbolIndexes(this.transform.angle),S=C.length-1;S>=0;--S){var P=C[S];I(e.symbolInstances.get(P),e.collisionArrays[P]);}else for(var z=0;z=0&&(e.text.placedSymbolArray.get(c).crossTileID=a>=0&&c!==a?0:o.crossTileID);}},ve.prototype.markUsedOrientation=function(e,i,o){for(var r=i===t.WritingMode.horizontal||i===t.WritingMode.horizontalOnly?i:0,a=i===t.WritingMode.vertical?i:0,n=0,s=[o.leftJustifiedTextSymbolIndex,o.centerJustifiedTextSymbolIndex,o.rightJustifiedTextSymbolIndex];n0||m>0,b=_.numIconVertices>0;if(x){for(var w=Se(y.text),E=(f+m)/4,T=0;T=0&&(e.text.placedSymbolArray.get(t).hidden=I||P);})),_.verticalPlacedTextSymbolIndex>=0&&(e.text.placedSymbolArray.get(_.verticalPlacedTextSymbolIndex).hidden=I||S);var z=this.variableOffsets[_.crossTileID];z&&this.markUsedJustification(e,z.anchor,_,C);var L=this.placedOrientations[_.crossTileID];L&&(this.markUsedJustification(e,"left",_,L),this.markUsedOrientation(e,L,_));}if(b){for(var D=Se(y.icon),M=0;M<_.numIconVertices/4;M++)e.icon.opacityVertexArray.emplaceBack(D);e.icon.placedSymbolArray.get(d).hidden=y.icon.isHidden();}if(e.hasIconCollisionBoxData()||e.hasIconCollisionCircleData()||e.hasTextCollisionBoxData()||e.hasTextCollisionCircleData()){var R=e.collisionArrays[d];if(R){var A=new t.Point(0,0);if(R.textBox){var k=!0;if(l){var B=this.variableOffsets[g];B?(A=me(B.anchor,B.width,B.height,B.textOffset,B.textBoxScale),c&&A._rotate(u?this.transform.angle:-this.transform.angle)):k=!1;}ye(e.textCollisionBox.collisionVertexArray,y.text.placed,!k,A.x,A.y);}R.iconBox&&ye(e.iconCollisionBox.collisionVertexArray,y.icon.placed,!1,h?A.x:0,h?A.y:0);var O=R.textCircles;if(O&&e.hasTextCollisionCircleData())for(var F=0;Ft},ve.prototype.setStale=function(){this.stale=!0;};var xe=Math.pow(2,25),be=Math.pow(2,24),we=Math.pow(2,17),Ee=Math.pow(2,16),Te=Math.pow(2,9),Ie=Math.pow(2,8),Ce=Math.pow(2,1);function Se(t){if(0===t.opacity&&!t.placed)return 0;if(1===t.opacity&&t.placed)return 4294967295;var e=t.placed?1:0,i=Math.floor(127*t.opacity);return i*xe+e*be+i*we+e*Ee+i*Te+e*Ie+i*Ce+e}var Pe=function(){this._currentTileIndex=0,this._seenCrossTileIDs={};};Pe.prototype.continuePlacement=function(t,e,i,o,r){for(;this._currentTileIndex2};this._currentPlacementIndex>=0;){var s=i[e[this._currentPlacementIndex]],l=this.placement.collisionIndex.transform.zoom;if("symbol"===s.type&&(!s.minzoom||s.minzoom<=l)&&(!s.maxzoom||s.maxzoom>l)){if(this._inProgressLayer||(this._inProgressLayer=new Pe),this._inProgressLayer.continuePlacement(o[s.source],this.placement,this._showCollisionBoxes,s,n))return;delete this._inProgressLayer;}this._currentPlacementIndex--;}this._done=!0;},ze.prototype.commit=function(t){return this.placement.commit(t),this.placement};var Le=512/t.EXTENT/2,De=function(t,e,i){this.tileID=t,this.indexedSymbolInstances={},this.bucketInstanceId=i;for(var o=0;ot.overscaledZ)for(var s in n){var l=n[s];l.tileID.isChildOf(t)&&l.findMatches(e.symbolInstances,t,r);}else{var c=n[t.scaledTo(Number(a)).key];c&&c.findMatches(e.symbolInstances,t,r);}}for(var u=0;u1?"@2x":"",l=t.getJSON(i.transformRequest(i.normalizeSpriteURL(e,s,".json"),t.ResourceType.SpriteJSON),(function(t,e){l=null,n||(n=t,r=e,u());})),c=t.getImage(i.transformRequest(i.normalizeSpriteURL(e,s,".png"),t.ResourceType.SpriteImage),(function(t,e){c=null,n||(n=t,a=e,u());}));function u(){if(n)o(n);else if(r&&a){var e=t.browser.getImageData(a),i={};for(var s in r){var l=r[s],c=l.width,u=l.height,h=l.x,p=l.y,d=l.sdf,_=l.pixelRatio,f=new t.RGBAImage({width:c,height:u});t.RGBAImage.copy(e,f,{x:h,y:p},{x:0,y:0},{width:c,height:u}),i[s]={data:f,pixelRatio:_,sdf:d};}o(null,i);}}return {cancel:function(){l&&(l.cancel(),l=null),c&&(c.cancel(),c=null);}}}(e.sprite,this.map._requestManager,(function(e,i){if(o._spriteRequest=null,e)o.fire(new t.ErrorEvent(e));else if(i)for(var r in i)o.imageManager.addImage(r,i[r]);o.imageManager.setLoaded(!0),o.dispatcher.broadcast("setImages",o.imageManager.listImages()),o.fire(new t.Event("data",{dataType:"style"}));})):this.imageManager.setLoaded(!0),this.glyphManager.setURL(e.glyphs);var a=Ft(this.stylesheet.layers);this._order=a.map((function(t){return t.id})),this._layers={};for(var n=0,s=a;n0)throw new Error("Unimplemented: "+r.map((function(t){return t.command})).join(", ")+".");return o.forEach((function(t){"setTransition"!==t.command&&i[t.command].apply(i,t.args);})),this.stylesheet=e,!0},i.prototype.addImage=function(e,i){if(this.getImage(e))return this.fire(new t.ErrorEvent(new Error("An image with this name already exists.")));this.imageManager.addImage(e,i),this.fire(new t.Event("data",{dataType:"style"}));},i.prototype.updateImage=function(t,e){this.imageManager.updateImage(t,e);},i.prototype.getImage=function(t){return this.imageManager.getImage(t)},i.prototype.removeImage=function(e){if(!this.getImage(e))return this.fire(new t.ErrorEvent(new Error("No image with this name exists.")));this.imageManager.removeImage(e),this.fire(new t.Event("data",{dataType:"style"}));},i.prototype.listImages=function(){return this._checkLoaded(),this.imageManager.listImages()},i.prototype.addSource=function(e,i,o){var r=this;if(void 0===o&&(o={}),this._checkLoaded(),void 0!==this.sourceCaches[e])throw new Error("There is already a source with this ID");if(!i.type)throw new Error("The type property must be defined, but the only the following properties were given: "+Object.keys(i).join(", ")+".");if(!(["vector","raster","geojson","video","image"].indexOf(i.type)>=0)||!this._validate(t.validateStyle.source,"sources."+e,i,null,o)){this.map&&this.map._collectResourceTiming&&(i.collectResourceTiming=!0);var a=this.sourceCaches[e]=new Lt(e,i,this.dispatcher);a.style=this,a.setEventedParent(this,(function(){return {isSourceLoaded:r.loaded(),source:a.serialize(),sourceId:e}})),a.onAdd(this.map),this._changed=!0;}},i.prototype.removeSource=function(e){if(this._checkLoaded(),void 0===this.sourceCaches[e])throw new Error("There is no source with this ID");for(var i in this._layers)if(this._layers[i].source===e)return this.fire(new t.ErrorEvent(new Error('Source "'+e+'" cannot be removed while layer "'+i+'" is using it.')));var o=this.sourceCaches[e];delete this.sourceCaches[e],delete this._updatedSources[e],o.fire(new t.Event("data",{sourceDataType:"metadata",dataType:"source",sourceId:e})),o.setEventedParent(null),o.clearTiles(),o.onRemove&&o.onRemove(this.map),this._changed=!0;},i.prototype.setGeoJSONSourceData=function(t,e){this._checkLoaded(),this.sourceCaches[t].getSource().setData(e),this._changed=!0;},i.prototype.getSource=function(t){return this.sourceCaches[t]&&this.sourceCaches[t].getSource()},i.prototype.addLayer=function(e,i,o){void 0===o&&(o={}),this._checkLoaded();var r=e.id;if(this.getLayer(r))this.fire(new t.ErrorEvent(new Error('Layer with id "'+r+'" already exists on this map')));else{var a;if("custom"===e.type){if(ke(this,t.validateCustomStyleLayer(e)))return;a=t.createStyleLayer(e);}else{if("object"==typeof e.source&&(this.addSource(r,e.source),e=t.clone$1(e),e=t.extend(e,{source:r})),this._validate(t.validateStyle.layer,"layers."+r,e,{arrayIndex:-1},o))return;a=t.createStyleLayer(e),this._validateLayer(a),a.setEventedParent(this,{layer:{id:r}});}var n=i?this._order.indexOf(i):this._order.length;if(i&&-1===n)this.fire(new t.ErrorEvent(new Error('Layer with id "'+i+'" does not exist on this map.')));else{if(this._order.splice(n,0,r),this._layerOrderChanged=!0,this._layers[r]=a,this._removedLayers[r]&&a.source&&"custom"!==a.type){var s=this._removedLayers[r];delete this._removedLayers[r],s.type!==a.type?this._updatedSources[a.source]="clear":(this._updatedSources[a.source]="reload",this.sourceCaches[a.source].pause());}this._updateLayer(a),a.onAdd&&a.onAdd(this.map);}}},i.prototype.moveLayer=function(e,i){if(this._checkLoaded(),this._changed=!0,this._layers[e]){if(e!==i){var o=this._order.indexOf(e);this._order.splice(o,1);var r=i?this._order.indexOf(i):this._order.length;i&&-1===r?this.fire(new t.ErrorEvent(new Error('Layer with id "'+i+'" does not exist on this map.'))):(this._order.splice(r,0,e),this._layerOrderChanged=!0);}}else this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be moved.")));},i.prototype.removeLayer=function(e){this._checkLoaded();var i=this._layers[e];if(i){i.setEventedParent(null);var o=this._order.indexOf(e);this._order.splice(o,1),this._layerOrderChanged=!0,this._changed=!0,this._removedLayers[e]=i,delete this._layers[e],delete this._updatedLayers[e],delete this._updatedPaintProps[e],i.onRemove&&i.onRemove(this.map);}else this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be removed.")));},i.prototype.getLayer=function(t){return this._layers[t]},i.prototype.setLayerZoomRange=function(e,i,o){this._checkLoaded();var r=this.getLayer(e);r?r.minzoom===i&&r.maxzoom===o||(null!=i&&(r.minzoom=i),null!=o&&(r.maxzoom=o),this._updateLayer(r)):this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot have zoom extent.")));},i.prototype.setFilter=function(e,i,o){void 0===o&&(o={}),this._checkLoaded();var r=this.getLayer(e);if(r){if(!t.deepEqual(r.filter,i))return null==i?(r.filter=void 0,void this._updateLayer(r)):void(this._validate(t.validateStyle.filter,"layers."+r.id+".filter",i,null,o)||(r.filter=t.clone$1(i),this._updateLayer(r)))}else this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be filtered.")));},i.prototype.getFilter=function(e){return t.clone$1(this.getLayer(e).filter)},i.prototype.setLayoutProperty=function(e,i,o,r){void 0===r&&(r={}),this._checkLoaded();var a=this.getLayer(e);a?t.deepEqual(a.getLayoutProperty(i),o)||(a.setLayoutProperty(i,o,r),this._updateLayer(a)):this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be styled.")));},i.prototype.getLayoutProperty=function(e,i){var o=this.getLayer(e);if(o)return o.getLayoutProperty(i);this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style.")));},i.prototype.setPaintProperty=function(e,i,o,r){void 0===r&&(r={}),this._checkLoaded();var a=this.getLayer(e);a?t.deepEqual(a.getPaintProperty(i),o)||(a.setPaintProperty(i,o,r)&&this._updateLayer(a),this._changed=!0,this._updatedPaintProps[e]=!0):this.fire(new t.ErrorEvent(new Error("The layer '"+e+"' does not exist in the map's style and cannot be styled.")));},i.prototype.getPaintProperty=function(t,e){return this.getLayer(t).getPaintProperty(e)},i.prototype.setFeatureState=function(e,i){this._checkLoaded();var o=e.source,r=e.sourceLayer,a=this.sourceCaches[o],n=parseInt(e.id,10);if(void 0!==a){var s=a.getSource().type;"geojson"===s&&r?this.fire(new t.ErrorEvent(new Error("GeoJSON sources cannot have a sourceLayer parameter."))):"vector"!==s||r?isNaN(n)||n<0?this.fire(new t.ErrorEvent(new Error("The feature id parameter must be provided and non-negative."))):a.setFeatureState(r,n,i):this.fire(new t.ErrorEvent(new Error("The sourceLayer parameter must be provided for vector source types.")));}else this.fire(new t.ErrorEvent(new Error("The source '"+o+"' does not exist in the map's style.")));},i.prototype.removeFeatureState=function(e,i){this._checkLoaded();var o=e.source,r=this.sourceCaches[o];if(void 0!==r){var a=r.getSource().type,n="vector"===a?e.sourceLayer:void 0,s=parseInt(e.id,10);"vector"!==a||n?void 0!==e.id&&isNaN(s)||s<0?this.fire(new t.ErrorEvent(new Error("The feature id parameter must be non-negative."))):i&&"string"!=typeof e.id&&"number"!=typeof e.id?this.fire(new t.ErrorEvent(new Error("A feature id is requred to remove its specific state property."))):r.removeFeatureState(n,s,i):this.fire(new t.ErrorEvent(new Error("The sourceLayer parameter must be provided for vector source types.")));}else this.fire(new t.ErrorEvent(new Error("The source '"+o+"' does not exist in the map's style.")));},i.prototype.getFeatureState=function(e){this._checkLoaded();var i=e.source,o=e.sourceLayer,r=this.sourceCaches[i],a=parseInt(e.id,10);if(void 0!==r)if("vector"!==r.getSource().type||o){if(!(isNaN(a)||a<0))return r.getFeatureState(o,a);this.fire(new t.ErrorEvent(new Error("The feature id parameter must be provided and non-negative.")));}else this.fire(new t.ErrorEvent(new Error("The sourceLayer parameter must be provided for vector source types.")));else this.fire(new t.ErrorEvent(new Error("The source '"+i+"' does not exist in the map's style.")));},i.prototype.getTransition=function(){return t.extend({duration:300,delay:0},this.stylesheet&&this.stylesheet.transition)},i.prototype.serialize=function(){return t.filterObject({version:this.stylesheet.version,name:this.stylesheet.name,metadata:this.stylesheet.metadata,light:this.stylesheet.light,center:this.stylesheet.center,zoom:this.stylesheet.zoom,bearing:this.stylesheet.bearing,pitch:this.stylesheet.pitch,sprite:this.stylesheet.sprite,glyphs:this.stylesheet.glyphs,transition:this.stylesheet.transition,sources:t.mapObject(this.sourceCaches,(function(t){return t.serialize()})),layers:this._serializeLayers(this._order)},(function(t){return void 0!==t}))},i.prototype._updateLayer=function(t){this._updatedLayers[t.id]=!0,t.source&&!this._updatedSources[t.source]&&(this._updatedSources[t.source]="reload",this.sourceCaches[t.source].pause()),this._changed=!0;},i.prototype._flattenAndSortRenderedFeatures=function(t){for(var e=this,i=function(t){return "fill-extrusion"===e._layers[t].type},o={},r=[],a=this._order.length-1;a>=0;a--){var n=this._order[a];if(i(n)){o[n]=a;for(var s=0,l=t;s=0;_--){var f=this._order[_];if(i(f))for(var m=r.length-1;m>=0;m--){var g=r[m].feature;if(o[g.layer.id]<_)break;d.push(g),r.pop();}else for(var v=0,y=t;v 0.5) {gl_FragColor=vec4(0.0,0.0,1.0,0.5)*alpha;}if (v_notUsed > 0.5) {gl_FragColor*=.1;}}","attribute vec2 a_pos;attribute vec2 a_anchor_pos;attribute vec2 a_extrude;attribute vec2 a_placed;attribute vec2 a_shift;uniform mat4 u_matrix;uniform vec2 u_extrude_scale;uniform float u_camera_to_center_distance;varying float v_placed;varying float v_notUsed;void main() {vec4 projectedPoint=u_matrix*vec4(a_anchor_pos,0,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float collision_perspective_ratio=clamp(0.5+0.5*(u_camera_to_center_distance/camera_to_anchor_distance),0.0,4.0);gl_Position=u_matrix*vec4(a_pos,0.0,1.0);gl_Position.xy+=(a_extrude+a_shift)*u_extrude_scale*gl_Position.w*collision_perspective_ratio;v_placed=a_placed.x;v_notUsed=a_placed.y;}"),He=hi("uniform float u_overscale_factor;varying float v_placed;varying float v_notUsed;varying float v_radius;varying vec2 v_extrude;varying vec2 v_extrude_scale;void main() {float alpha=0.5;vec4 color=vec4(1.0,0.0,0.0,1.0)*alpha;if (v_placed > 0.5) {color=vec4(0.0,0.0,1.0,0.5)*alpha;}if (v_notUsed > 0.5) {color*=.2;}float extrude_scale_length=length(v_extrude_scale);float extrude_length=length(v_extrude)*extrude_scale_length;float stroke_width=15.0*extrude_scale_length/u_overscale_factor;float radius=v_radius*extrude_scale_length;float distance_to_edge=abs(extrude_length-radius);float opacity_t=smoothstep(-stroke_width,0.0,-distance_to_edge);gl_FragColor=opacity_t*color;}","attribute vec2 a_pos;attribute vec2 a_anchor_pos;attribute vec2 a_extrude;attribute vec2 a_placed;uniform mat4 u_matrix;uniform vec2 u_extrude_scale;uniform float u_camera_to_center_distance;varying float v_placed;varying float v_notUsed;varying float v_radius;varying vec2 v_extrude;varying vec2 v_extrude_scale;void main() {vec4 projectedPoint=u_matrix*vec4(a_anchor_pos,0,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float collision_perspective_ratio=clamp(0.5+0.5*(u_camera_to_center_distance/camera_to_anchor_distance),0.0,4.0);gl_Position=u_matrix*vec4(a_pos,0.0,1.0);highp float padding_factor=1.2;gl_Position.xy+=a_extrude*u_extrude_scale*padding_factor*gl_Position.w*collision_perspective_ratio;v_placed=a_placed.x;v_notUsed=a_placed.y;v_radius=abs(a_extrude.y);v_extrude=a_extrude*padding_factor;v_extrude_scale=u_extrude_scale*u_camera_to_center_distance*collision_perspective_ratio;}"),Ke=hi("uniform highp vec4 u_color;void main() {gl_FragColor=u_color;}","attribute vec2 a_pos;uniform mat4 u_matrix;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);}"),Je=hi("#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float opacity\ngl_FragColor=color*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","attribute vec2 a_pos;uniform mat4 u_matrix;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float opacity\ngl_Position=u_matrix*vec4(a_pos,0,1);}"),Ye=hi("varying vec2 v_pos;\n#pragma mapbox: define highp vec4 outline_color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 outline_color\n#pragma mapbox: initialize lowp float opacity\nfloat dist=length(v_pos-gl_FragCoord.xy);float alpha=1.0-smoothstep(0.0,1.0,dist);gl_FragColor=outline_color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","attribute vec2 a_pos;uniform mat4 u_matrix;uniform vec2 u_world;varying vec2 v_pos;\n#pragma mapbox: define highp vec4 outline_color\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 outline_color\n#pragma mapbox: initialize lowp float opacity\ngl_Position=u_matrix*vec4(a_pos,0,1);v_pos=(gl_Position.xy/gl_Position.w+1.0)/2.0*u_world;}"),Qe=hi("uniform vec2 u_texsize;uniform sampler2D u_image;uniform float u_fade;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec2 v_pos;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);float dist=length(v_pos-gl_FragCoord.xy);float alpha=1.0-smoothstep(0.0,1.0,dist);gl_FragColor=mix(color1,color2,u_fade)*alpha*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_world;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform vec4 u_scale;attribute vec2 a_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec2 v_pos;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float pixelRatio=u_scale.x;float tileRatio=u_scale.y;float fromScale=u_scale.z;float toScale=u_scale.w;gl_Position=u_matrix*vec4(a_pos,0,1);vec2 display_size_a=vec2((pattern_br_a.x-pattern_tl_a.x)/pixelRatio,(pattern_br_a.y-pattern_tl_a.y)/pixelRatio);vec2 display_size_b=vec2((pattern_br_b.x-pattern_tl_b.x)/pixelRatio,(pattern_br_b.y-pattern_tl_b.y)/pixelRatio);v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,fromScale*display_size_a,tileRatio,a_pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,toScale*display_size_b,tileRatio,a_pos);v_pos=(gl_Position.xy/gl_Position.w+1.0)/2.0*u_world;}"),$e=hi("uniform vec2 u_texsize;uniform float u_fade;uniform sampler2D u_image;varying vec2 v_pos_a;varying vec2 v_pos_b;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);gl_FragColor=mix(color1,color2,u_fade)*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform vec4 u_scale;attribute vec2 a_pos;varying vec2 v_pos_a;varying vec2 v_pos_b;\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float pixelRatio=u_scale.x;float tileZoomRatio=u_scale.y;float fromScale=u_scale.z;float toScale=u_scale.w;vec2 display_size_a=vec2((pattern_br_a.x-pattern_tl_a.x)/pixelRatio,(pattern_br_a.y-pattern_tl_a.y)/pixelRatio);vec2 display_size_b=vec2((pattern_br_b.x-pattern_tl_b.x)/pixelRatio,(pattern_br_b.y-pattern_tl_b.y)/pixelRatio);gl_Position=u_matrix*vec4(a_pos,0,1);v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,fromScale*display_size_a,tileZoomRatio,a_pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,toScale*display_size_b,tileZoomRatio,a_pos);}"),ti=hi("varying vec4 v_color;void main() {gl_FragColor=v_color;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec3 u_lightcolor;uniform lowp vec3 u_lightpos;uniform lowp float u_lightintensity;uniform float u_vertical_gradient;uniform lowp float u_opacity;attribute vec2 a_pos;attribute vec4 a_normal_ed;varying vec4 v_color;\n#pragma mapbox: define highp float base\n#pragma mapbox: define highp float height\n#pragma mapbox: define highp vec4 color\nvoid main() {\n#pragma mapbox: initialize highp float base\n#pragma mapbox: initialize highp float height\n#pragma mapbox: initialize highp vec4 color\nvec3 normal=a_normal_ed.xyz;base=max(0.0,base);height=max(0.0,height);float t=mod(normal.x,2.0);gl_Position=u_matrix*vec4(a_pos,t > 0.0 ? height : base,1);float colorvalue=color.r*0.2126+color.g*0.7152+color.b*0.0722;v_color=vec4(0.0,0.0,0.0,1.0);vec4 ambientlight=vec4(0.03,0.03,0.03,1.0);color+=ambientlight;float directional=clamp(dot(normal/16384.0,u_lightpos),0.0,1.0);directional=mix((1.0-u_lightintensity),max((1.0-colorvalue+u_lightintensity),1.0),directional);if (normal.y !=0.0) {directional*=((1.0-u_vertical_gradient)+(u_vertical_gradient*clamp((t+base)*pow(height/150.0,0.5),mix(0.7,0.98,1.0-u_lightintensity),1.0)));}v_color.r+=clamp(color.r*directional*u_lightcolor.r,mix(0.0,0.3,1.0-u_lightcolor.r),1.0);v_color.g+=clamp(color.g*directional*u_lightcolor.g,mix(0.0,0.3,1.0-u_lightcolor.g),1.0);v_color.b+=clamp(color.b*directional*u_lightcolor.b,mix(0.0,0.3,1.0-u_lightcolor.b),1.0);v_color*=u_opacity;}"),ei=hi("uniform vec2 u_texsize;uniform float u_fade;uniform sampler2D u_image;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec4 v_lighting;\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float base\n#pragma mapbox: initialize lowp float height\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;vec2 imagecoord=mod(v_pos_a,1.0);vec2 pos=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,imagecoord);vec4 color1=texture2D(u_image,pos);vec2 imagecoord_b=mod(v_pos_b,1.0);vec2 pos2=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,imagecoord_b);vec4 color2=texture2D(u_image,pos2);vec4 mixedColor=mix(color1,color2,u_fade);gl_FragColor=mixedColor*v_lighting;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_pixel_coord_upper;uniform vec2 u_pixel_coord_lower;uniform float u_height_factor;uniform vec4 u_scale;uniform float u_vertical_gradient;uniform lowp float u_opacity;uniform vec3 u_lightcolor;uniform lowp vec3 u_lightpos;uniform lowp float u_lightintensity;attribute vec2 a_pos;attribute vec4 a_normal_ed;varying vec2 v_pos_a;varying vec2 v_pos_b;varying vec4 v_lighting;\n#pragma mapbox: define lowp float base\n#pragma mapbox: define lowp float height\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float base\n#pragma mapbox: initialize lowp float height\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float pixelRatio=u_scale.x;float tileRatio=u_scale.y;float fromScale=u_scale.z;float toScale=u_scale.w;vec3 normal=a_normal_ed.xyz;float edgedistance=a_normal_ed.w;vec2 display_size_a=vec2((pattern_br_a.x-pattern_tl_a.x)/pixelRatio,(pattern_br_a.y-pattern_tl_a.y)/pixelRatio);vec2 display_size_b=vec2((pattern_br_b.x-pattern_tl_b.x)/pixelRatio,(pattern_br_b.y-pattern_tl_b.y)/pixelRatio);base=max(0.0,base);height=max(0.0,height);float t=mod(normal.x,2.0);float z=t > 0.0 ? height : base;gl_Position=u_matrix*vec4(a_pos,z,1);vec2 pos=normal.x==1.0 && normal.y==0.0 && normal.z==16384.0\n? a_pos\n: vec2(edgedistance,z*u_height_factor);v_pos_a=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,fromScale*display_size_a,tileRatio,pos);v_pos_b=get_pattern_pos(u_pixel_coord_upper,u_pixel_coord_lower,toScale*display_size_b,tileRatio,pos);v_lighting=vec4(0.0,0.0,0.0,1.0);float directional=clamp(dot(normal/16383.0,u_lightpos),0.0,1.0);directional=mix((1.0-u_lightintensity),max((0.5+u_lightintensity),1.0),directional);if (normal.y !=0.0) {directional*=((1.0-u_vertical_gradient)+(u_vertical_gradient*clamp((t+base)*pow(height/150.0,0.5),mix(0.7,0.98,1.0-u_lightintensity),1.0)));}v_lighting.rgb+=clamp(directional*u_lightcolor,mix(vec3(0.0),vec3(0.3),1.0-u_lightcolor),vec3(1.0));v_lighting*=u_opacity;}"),ii=hi("#ifdef GL_ES\nprecision highp float;\n#endif\nuniform sampler2D u_image;varying vec2 v_pos;uniform vec2 u_dimension;uniform float u_zoom;uniform float u_maxzoom;uniform vec4 u_unpack;float getElevation(vec2 coord,float bias) {vec4 data=texture2D(u_image,coord)*255.0;data.a=-1.0;return dot(data,u_unpack)/4.0;}void main() {vec2 epsilon=1.0/u_dimension;float a=getElevation(v_pos+vec2(-epsilon.x,-epsilon.y),0.0);float b=getElevation(v_pos+vec2(0,-epsilon.y),0.0);float c=getElevation(v_pos+vec2(epsilon.x,-epsilon.y),0.0);float d=getElevation(v_pos+vec2(-epsilon.x,0),0.0);float e=getElevation(v_pos,0.0);float f=getElevation(v_pos+vec2(epsilon.x,0),0.0);float g=getElevation(v_pos+vec2(-epsilon.x,epsilon.y),0.0);float h=getElevation(v_pos+vec2(0,epsilon.y),0.0);float i=getElevation(v_pos+vec2(epsilon.x,epsilon.y),0.0);float exaggeration=u_zoom < 2.0 ? 0.4 : u_zoom < 4.5 ? 0.35 : 0.3;vec2 deriv=vec2((c+f+f+i)-(a+d+d+g),(g+h+h+i)-(a+b+b+c))/ pow(2.0,(u_zoom-u_maxzoom)*exaggeration+19.2562-u_zoom);gl_FragColor=clamp(vec4(deriv.x/2.0+0.5,deriv.y/2.0+0.5,1.0,1.0),0.0,1.0);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_dimension;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);highp vec2 epsilon=1.0/u_dimension;float scale=(u_dimension.x-2.0)/u_dimension.x;v_pos=(a_texture_pos/8192.0)*scale+epsilon;}"),oi=hi("uniform sampler2D u_image;varying vec2 v_pos;uniform vec2 u_latrange;uniform vec2 u_light;uniform vec4 u_shadow;uniform vec4 u_highlight;uniform vec4 u_accent;\n#define PI 3.141592653589793\nvoid main() {vec4 pixel=texture2D(u_image,v_pos);vec2 deriv=((pixel.rg*2.0)-1.0);float scaleFactor=cos(radians((u_latrange[0]-u_latrange[1])*(1.0-v_pos.y)+u_latrange[1]));float slope=atan(1.25*length(deriv)/scaleFactor);float aspect=deriv.x !=0.0 ? atan(deriv.y,-deriv.x) : PI/2.0*(deriv.y > 0.0 ? 1.0 :-1.0);float intensity=u_light.x;float azimuth=u_light.y+PI;float base=1.875-intensity*1.75;float maxValue=0.5*PI;float scaledSlope=intensity !=0.5 ? ((pow(base,slope)-1.0)/(pow(base,maxValue)-1.0))*maxValue : slope;float accent=cos(scaledSlope);vec4 accent_color=(1.0-accent)*u_accent*clamp(intensity*2.0,0.0,1.0);float shade=abs(mod((aspect+azimuth)/PI+0.5,2.0)-1.0);vec4 shade_color=mix(u_shadow,u_highlight,shade)*sin(scaledSlope)*clamp(intensity*2.0,0.0,1.0);gl_FragColor=accent_color*(1.0-shade_color.a)+shade_color;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);v_pos=a_texture_pos/8192.0;}"),ri=hi("uniform lowp float u_device_pixel_ratio;varying vec2 v_width2;varying vec2 v_normal;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\nfloat dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);gl_FragColor=color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;uniform mat4 u_matrix;uniform mediump float u_ratio;uniform vec2 u_units_to_pixels;uniform lowp float u_device_pixel_ratio;varying vec2 v_normal;varying vec2 v_width2;varying float v_gamma_scale;varying highp float v_linesofar;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float width\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;v_linesofar=(floor(a_data.z/4.0)+a_data.w*64.0)*2.0;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;float extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;v_width2=vec2(outset,inset);}"),ai=hi("uniform lowp float u_device_pixel_ratio;uniform sampler2D u_image;varying vec2 v_width2;varying vec2 v_normal;varying float v_gamma_scale;varying highp float v_lineprogress;\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\nfloat dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);vec4 color=texture2D(u_image,vec2(v_lineprogress,0.5));gl_FragColor=color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","\n#define MAX_LINE_DISTANCE 32767.0\n#define scale 0.015873016\nattribute vec2 a_pos_normal;attribute vec4 a_data;uniform mat4 u_matrix;uniform mediump float u_ratio;uniform lowp float u_device_pixel_ratio;uniform vec2 u_units_to_pixels;varying vec2 v_normal;varying vec2 v_width2;varying float v_gamma_scale;varying highp float v_lineprogress;\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\nvoid main() {\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float width\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;v_lineprogress=(floor(a_data.z/4.0)+a_data.w*64.0)*2.0/MAX_LINE_DISTANCE;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;float extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;v_width2=vec2(outset,inset);}"),ni=hi("uniform lowp float u_device_pixel_ratio;uniform vec2 u_texsize;uniform float u_fade;uniform mediump vec4 u_scale;uniform sampler2D u_image;varying vec2 v_normal;varying vec2 v_width2;varying float v_linesofar;varying float v_gamma_scale;\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\nvec2 pattern_tl_a=pattern_from.xy;vec2 pattern_br_a=pattern_from.zw;vec2 pattern_tl_b=pattern_to.xy;vec2 pattern_br_b=pattern_to.zw;float pixelRatio=u_scale.x;float tileZoomRatio=u_scale.y;float fromScale=u_scale.z;float toScale=u_scale.w;vec2 display_size_a=vec2((pattern_br_a.x-pattern_tl_a.x)/pixelRatio,(pattern_br_a.y-pattern_tl_a.y)/pixelRatio);vec2 display_size_b=vec2((pattern_br_b.x-pattern_tl_b.x)/pixelRatio,(pattern_br_b.y-pattern_tl_b.y)/pixelRatio);vec2 pattern_size_a=vec2(display_size_a.x*fromScale/tileZoomRatio,display_size_a.y);vec2 pattern_size_b=vec2(display_size_b.x*toScale/tileZoomRatio,display_size_b.y);float dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);float x_a=mod(v_linesofar/pattern_size_a.x,1.0);float x_b=mod(v_linesofar/pattern_size_b.x,1.0);float y_a=0.5+(v_normal.y*clamp(v_width2.s,0.0,(pattern_size_a.y+2.0)/2.0)/pattern_size_a.y);float y_b=0.5+(v_normal.y*clamp(v_width2.s,0.0,(pattern_size_b.y+2.0)/2.0)/pattern_size_b.y);vec2 pos_a=mix(pattern_tl_a/u_texsize,pattern_br_a/u_texsize,vec2(x_a,y_a));vec2 pos_b=mix(pattern_tl_b/u_texsize,pattern_br_b/u_texsize,vec2(x_b,y_b));vec4 color=mix(texture2D(u_image,pos_a),texture2D(u_image,pos_b),u_fade);gl_FragColor=color*alpha*opacity;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","\n#define scale 0.015873016\n#define LINE_DISTANCE_SCALE 2.0\nattribute vec2 a_pos_normal;attribute vec4 a_data;uniform mat4 u_matrix;uniform vec2 u_units_to_pixels;uniform mediump float u_ratio;uniform lowp float u_device_pixel_ratio;varying vec2 v_normal;varying vec2 v_width2;varying float v_linesofar;varying float v_gamma_scale;\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp vec4 pattern_from\n#pragma mapbox: define lowp vec4 pattern_to\nvoid main() {\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize mediump float width\n#pragma mapbox: initialize mediump vec4 pattern_from\n#pragma mapbox: initialize mediump vec4 pattern_to\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;float a_linesofar=(floor(a_data.z/4.0)+a_data.w*64.0)*LINE_DISTANCE_SCALE;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;float extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;v_linesofar=a_linesofar;v_width2=vec2(outset,inset);}"),si=hi("uniform lowp float u_device_pixel_ratio;uniform sampler2D u_image;uniform float u_sdfgamma;uniform float u_mix;varying vec2 v_normal;varying vec2 v_width2;varying vec2 v_tex_a;varying vec2 v_tex_b;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float width\n#pragma mapbox: initialize lowp float floorwidth\nfloat dist=length(v_normal)*v_width2.s;float blur2=(blur+1.0/u_device_pixel_ratio)*v_gamma_scale;float alpha=clamp(min(dist-(v_width2.t-blur2),v_width2.s-dist)/blur2,0.0,1.0);float sdfdist_a=texture2D(u_image,v_tex_a).a;float sdfdist_b=texture2D(u_image,v_tex_b).a;float sdfdist=mix(sdfdist_a,sdfdist_b,u_mix);alpha*=smoothstep(0.5-u_sdfgamma/floorwidth,0.5+u_sdfgamma/floorwidth,sdfdist);gl_FragColor=color*(alpha*opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","\n#define scale 0.015873016\n#define LINE_DISTANCE_SCALE 2.0\nattribute vec2 a_pos_normal;attribute vec4 a_data;uniform mat4 u_matrix;uniform mediump float u_ratio;uniform lowp float u_device_pixel_ratio;uniform vec2 u_patternscale_a;uniform float u_tex_y_a;uniform vec2 u_patternscale_b;uniform float u_tex_y_b;uniform vec2 u_units_to_pixels;varying vec2 v_normal;varying vec2 v_width2;varying vec2 v_tex_a;varying vec2 v_tex_b;varying float v_gamma_scale;\n#pragma mapbox: define highp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define mediump float gapwidth\n#pragma mapbox: define lowp float offset\n#pragma mapbox: define mediump float width\n#pragma mapbox: define lowp float floorwidth\nvoid main() {\n#pragma mapbox: initialize highp vec4 color\n#pragma mapbox: initialize lowp float blur\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize mediump float gapwidth\n#pragma mapbox: initialize lowp float offset\n#pragma mapbox: initialize mediump float width\n#pragma mapbox: initialize lowp float floorwidth\nfloat ANTIALIASING=1.0/u_device_pixel_ratio/2.0;vec2 a_extrude=a_data.xy-128.0;float a_direction=mod(a_data.z,4.0)-1.0;float a_linesofar=(floor(a_data.z/4.0)+a_data.w*64.0)*LINE_DISTANCE_SCALE;vec2 pos=floor(a_pos_normal*0.5);mediump vec2 normal=a_pos_normal-2.0*pos;normal.y=normal.y*2.0-1.0;v_normal=normal;gapwidth=gapwidth/2.0;float halfwidth=width/2.0;offset=-1.0*offset;float inset=gapwidth+(gapwidth > 0.0 ? ANTIALIASING : 0.0);float outset=gapwidth+halfwidth*(gapwidth > 0.0 ? 2.0 : 1.0)+(halfwidth==0.0 ? 0.0 : ANTIALIASING);mediump vec2 dist=outset*a_extrude*scale;mediump float u=0.5*a_direction;mediump float t=1.0-abs(u);mediump vec2 offset2=offset*a_extrude*scale*normal.y*mat2(t,-u,u,t);vec4 projected_extrude=u_matrix*vec4(dist/u_ratio,0.0,0.0);gl_Position=u_matrix*vec4(pos+offset2/u_ratio,0.0,1.0)+projected_extrude;float extrude_length_without_perspective=length(dist);float extrude_length_with_perspective=length(projected_extrude.xy/gl_Position.w*u_units_to_pixels);v_gamma_scale=extrude_length_without_perspective/extrude_length_with_perspective;v_tex_a=vec2(a_linesofar*u_patternscale_a.x/floorwidth,normal.y*u_patternscale_a.y+u_tex_y_a);v_tex_b=vec2(a_linesofar*u_patternscale_b.x/floorwidth,normal.y*u_patternscale_b.y+u_tex_y_b);v_width2=vec2(outset,inset);}"),li=hi("uniform float u_fade_t;uniform float u_opacity;uniform sampler2D u_image0;uniform sampler2D u_image1;varying vec2 v_pos0;varying vec2 v_pos1;uniform float u_brightness_low;uniform float u_brightness_high;uniform float u_saturation_factor;uniform float u_contrast_factor;uniform vec3 u_spin_weights;void main() {vec4 color0=texture2D(u_image0,v_pos0);vec4 color1=texture2D(u_image1,v_pos1);if (color0.a > 0.0) {color0.rgb=color0.rgb/color0.a;}if (color1.a > 0.0) {color1.rgb=color1.rgb/color1.a;}vec4 color=mix(color0,color1,u_fade_t);color.a*=u_opacity;vec3 rgb=color.rgb;rgb=vec3(dot(rgb,u_spin_weights.xyz),dot(rgb,u_spin_weights.zxy),dot(rgb,u_spin_weights.yzx));float average=(color.r+color.g+color.b)/3.0;rgb+=(average-rgb)*u_saturation_factor;rgb=(rgb-0.5)*u_contrast_factor+0.5;vec3 u_high_vec=vec3(u_brightness_low,u_brightness_low,u_brightness_low);vec3 u_low_vec=vec3(u_brightness_high,u_brightness_high,u_brightness_high);gl_FragColor=vec4(mix(u_high_vec,u_low_vec,rgb)*color.a,color.a);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","uniform mat4 u_matrix;uniform vec2 u_tl_parent;uniform float u_scale_parent;uniform float u_buffer_scale;attribute vec2 a_pos;attribute vec2 a_texture_pos;varying vec2 v_pos0;varying vec2 v_pos1;void main() {gl_Position=u_matrix*vec4(a_pos,0,1);v_pos0=(((a_texture_pos/8192.0)-0.5)/u_buffer_scale )+0.5;v_pos1=(v_pos0*u_scale_parent)+u_tl_parent;}"),ci=hi("uniform sampler2D u_texture;varying vec2 v_tex;varying float v_fade_opacity;\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\nlowp float alpha=opacity*v_fade_opacity;gl_FragColor=texture2D(u_texture,v_tex)*alpha;\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","const float PI=3.141592653589793;attribute vec4 a_pos_offset;attribute vec4 a_data;attribute vec3 a_projected_pos;attribute float a_fade_opacity;uniform bool u_is_size_zoom_constant;uniform bool u_is_size_feature_constant;uniform highp float u_size_t;uniform highp float u_size;uniform highp float u_camera_to_center_distance;uniform highp float u_pitch;uniform bool u_rotate_symbol;uniform highp float u_aspect_ratio;uniform float u_fade_change;uniform mat4 u_matrix;uniform mat4 u_label_plane_matrix;uniform mat4 u_coord_matrix;uniform bool u_is_text;uniform bool u_pitch_with_map;uniform vec2 u_texsize;varying vec2 v_tex;varying float v_fade_opacity;\n#pragma mapbox: define lowp float opacity\nvoid main() {\n#pragma mapbox: initialize lowp float opacity\nvec2 a_pos=a_pos_offset.xy;vec2 a_offset=a_pos_offset.zw;vec2 a_tex=a_data.xy;vec2 a_size=a_data.zw;highp float segment_angle=-a_projected_pos[2];float size;if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {size=mix(a_size[0],a_size[1],u_size_t)/256.0;} else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {size=a_size[0]/256.0;} else if (!u_is_size_zoom_constant && u_is_size_feature_constant) {size=u_size;} else {size=u_size;}vec4 projectedPoint=u_matrix*vec4(a_pos,0,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float distance_ratio=u_pitch_with_map ?\ncamera_to_anchor_distance/u_camera_to_center_distance :\nu_camera_to_center_distance/camera_to_anchor_distance;highp float perspective_ratio=clamp(0.5+0.5*distance_ratio,0.0,4.0);size*=perspective_ratio;float fontScale=u_is_text ? size/24.0 : size;highp float symbol_rotation=0.0;if (u_rotate_symbol) {vec4 offsetProjectedPoint=u_matrix*vec4(a_pos+vec2(1,0),0,1);vec2 a=projectedPoint.xy/projectedPoint.w;vec2 b=offsetProjectedPoint.xy/offsetProjectedPoint.w;symbol_rotation=atan((b.y-a.y)/u_aspect_ratio,b.x-a.x);}highp float angle_sin=sin(segment_angle+symbol_rotation);highp float angle_cos=cos(segment_angle+symbol_rotation);mat2 rotation_matrix=mat2(angle_cos,-1.0*angle_sin,angle_sin,angle_cos);vec4 projected_pos=u_label_plane_matrix*vec4(a_projected_pos.xy,0.0,1.0);gl_Position=u_coord_matrix*vec4(projected_pos.xy/projected_pos.w+rotation_matrix*(a_offset/32.0*fontScale),0.0,1.0);v_tex=a_tex/u_texsize;vec2 fade_opacity=unpack_opacity(a_fade_opacity);float fade_change=fade_opacity[1] > 0.5 ? u_fade_change :-u_fade_change;v_fade_opacity=max(0.0,min(1.0,fade_opacity[0]+fade_change));}"),ui=hi("#define SDF_PX 8.0\nuniform bool u_is_halo;uniform sampler2D u_texture;uniform highp float u_gamma_scale;uniform lowp float u_device_pixel_ratio;uniform bool u_is_text;varying vec2 v_data0;varying vec3 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nfloat EDGE_GAMMA=0.105/u_device_pixel_ratio;vec2 tex=v_data0.xy;float gamma_scale=v_data1.x;float size=v_data1.y;float fade_opacity=v_data1[2];float fontScale=u_is_text ? size/24.0 : size;lowp vec4 color=fill_color;highp float gamma=EDGE_GAMMA/(fontScale*u_gamma_scale);lowp float buff=(256.0-64.0)/256.0;if (u_is_halo) {color=halo_color;gamma=(halo_blur*1.19/SDF_PX+EDGE_GAMMA)/(fontScale*u_gamma_scale);buff=(6.0-halo_width/fontScale)/SDF_PX;}lowp float dist=texture2D(u_texture,tex).a;highp float gamma_scaled=gamma*gamma_scale;highp float alpha=smoothstep(buff-gamma_scaled,buff+gamma_scaled,dist);gl_FragColor=color*(alpha*opacity*fade_opacity);\n#ifdef OVERDRAW_INSPECTOR\ngl_FragColor=vec4(1.0);\n#endif\n}","const float PI=3.141592653589793;attribute vec4 a_pos_offset;attribute vec4 a_data;attribute vec3 a_projected_pos;attribute float a_fade_opacity;uniform bool u_is_size_zoom_constant;uniform bool u_is_size_feature_constant;uniform highp float u_size_t;uniform highp float u_size;uniform mat4 u_matrix;uniform mat4 u_label_plane_matrix;uniform mat4 u_coord_matrix;uniform bool u_is_text;uniform bool u_pitch_with_map;uniform highp float u_pitch;uniform bool u_rotate_symbol;uniform highp float u_aspect_ratio;uniform highp float u_camera_to_center_distance;uniform float u_fade_change;uniform vec2 u_texsize;varying vec2 v_data0;varying vec3 v_data1;\n#pragma mapbox: define highp vec4 fill_color\n#pragma mapbox: define highp vec4 halo_color\n#pragma mapbox: define lowp float opacity\n#pragma mapbox: define lowp float halo_width\n#pragma mapbox: define lowp float halo_blur\nvoid main() {\n#pragma mapbox: initialize highp vec4 fill_color\n#pragma mapbox: initialize highp vec4 halo_color\n#pragma mapbox: initialize lowp float opacity\n#pragma mapbox: initialize lowp float halo_width\n#pragma mapbox: initialize lowp float halo_blur\nvec2 a_pos=a_pos_offset.xy;vec2 a_offset=a_pos_offset.zw;vec2 a_tex=a_data.xy;vec2 a_size=a_data.zw;highp float segment_angle=-a_projected_pos[2];float size;if (!u_is_size_zoom_constant && !u_is_size_feature_constant) {size=mix(a_size[0],a_size[1],u_size_t)/256.0;} else if (u_is_size_zoom_constant && !u_is_size_feature_constant) {size=a_size[0]/256.0;} else if (!u_is_size_zoom_constant && u_is_size_feature_constant) {size=u_size;} else {size=u_size;}vec4 projectedPoint=u_matrix*vec4(a_pos,0,1);highp float camera_to_anchor_distance=projectedPoint.w;highp float distance_ratio=u_pitch_with_map ?\ncamera_to_anchor_distance/u_camera_to_center_distance :\nu_camera_to_center_distance/camera_to_anchor_distance;highp float perspective_ratio=clamp(0.5+0.5*distance_ratio,0.0,4.0);size*=perspective_ratio;float fontScale=u_is_text ? size/24.0 : size;highp float symbol_rotation=0.0;if (u_rotate_symbol) {vec4 offsetProjectedPoint=u_matrix*vec4(a_pos+vec2(1,0),0,1);vec2 a=projectedPoint.xy/projectedPoint.w;vec2 b=offsetProjectedPoint.xy/offsetProjectedPoint.w;symbol_rotation=atan((b.y-a.y)/u_aspect_ratio,b.x-a.x);}highp float angle_sin=sin(segment_angle+symbol_rotation);highp float angle_cos=cos(segment_angle+symbol_rotation);mat2 rotation_matrix=mat2(angle_cos,-1.0*angle_sin,angle_sin,angle_cos);vec4 projected_pos=u_label_plane_matrix*vec4(a_projected_pos.xy,0.0,1.0);gl_Position=u_coord_matrix*vec4(projected_pos.xy/projected_pos.w+rotation_matrix*(a_offset/32.0*fontScale),0.0,1.0);float gamma_scale=gl_Position.w;vec2 tex=a_tex/u_texsize;vec2 fade_opacity=unpack_opacity(a_fade_opacity);float fade_change=fade_opacity[1] > 0.5 ? u_fade_change :-u_fade_change;float interpolated_fade_opacity=max(0.0,min(1.0,fade_opacity[0]+fade_change));v_data0=vec2(tex.x,tex.y);v_data1=vec3(gamma_scale,size,interpolated_fade_opacity);}");function hi(t,e){var i=/#pragma mapbox: ([\w]+) ([\w]+) ([\w]+) ([\w]+)/g,o={};return {fragmentSource:t=t.replace(i,(function(t,e,i,r,a){return o[a]=!0,"define"===e?"\n#ifndef HAS_UNIFORM_u_"+a+"\nvarying "+i+" "+r+" "+a+";\n#else\nuniform "+i+" "+r+" u_"+a+";\n#endif\n":"\n#ifdef HAS_UNIFORM_u_"+a+"\n "+i+" "+r+" "+a+" = u_"+a+";\n#endif\n"})),vertexSource:e=e.replace(i,(function(t,e,i,r,a){var n="float"===r?"vec2":"vec4",s=a.match(/color/)?"color":n;return o[a]?"define"===e?"\n#ifndef HAS_UNIFORM_u_"+a+"\nuniform lowp float u_"+a+"_t;\nattribute "+i+" "+n+" a_"+a+";\nvarying "+i+" "+r+" "+a+";\n#else\nuniform "+i+" "+r+" u_"+a+";\n#endif\n":"vec4"===s?"\n#ifndef HAS_UNIFORM_u_"+a+"\n "+a+" = a_"+a+";\n#else\n "+i+" "+r+" "+a+" = u_"+a+";\n#endif\n":"\n#ifndef HAS_UNIFORM_u_"+a+"\n "+a+" = unpack_mix_"+s+"(a_"+a+", u_"+a+"_t);\n#else\n "+i+" "+r+" "+a+" = u_"+a+";\n#endif\n":"define"===e?"\n#ifndef HAS_UNIFORM_u_"+a+"\nuniform lowp float u_"+a+"_t;\nattribute "+i+" "+n+" a_"+a+";\n#else\nuniform "+i+" "+r+" u_"+a+";\n#endif\n":"vec4"===s?"\n#ifndef HAS_UNIFORM_u_"+a+"\n "+i+" "+r+" "+a+" = a_"+a+";\n#else\n "+i+" "+r+" "+a+" = u_"+a+";\n#endif\n":"\n#ifndef HAS_UNIFORM_u_"+a+"\n "+i+" "+r+" "+a+" = unpack_mix_"+s+"(a_"+a+", u_"+a+"_t);\n#else\n "+i+" "+r+" "+a+" = u_"+a+";\n#endif\n"}))}}var pi=Object.freeze({prelude:Ne,background:Ze,backgroundPattern:Ve,circle:qe,clippingMask:je,heatmap:Ge,heatmapTexture:We,collisionBox:Xe,collisionCircle:He,debug:Ke,fill:Je,fillOutline:Ye,fillOutlinePattern:Qe,fillPattern:$e,fillExtrusion:ti,fillExtrusionPattern:ei,hillshadePrepare:ii,hillshade:oi,line:ri,lineGradient:ai,linePattern:ni,lineSDF:si,raster:li,symbolIcon:ci,symbolSDF:ui}),di=function(){this.boundProgram=null,this.boundLayoutVertexBuffer=null,this.boundPaintVertexBuffers=[],this.boundIndexBuffer=null,this.boundVertexOffset=null,this.boundDynamicVertexBuffer=null,this.vao=null;};di.prototype.bind=function(t,e,i,o,r,a,n,s){this.context=t;for(var l=this.boundPaintVertexBuffers.length!==o.length,c=0;!l&&c>16,l>>16],u_pixel_coord_lower:[65535&s,65535&l]}}_i.prototype.draw=function(t,e,i,o,r,a,n,s,l,c,u,h,p,d,_,f){var m,g=t.gl;for(var v in t.program.set(this.program),t.setDepthMode(i),t.setStencilMode(o),t.setColorMode(r),t.setCullFace(a),this.fixedUniforms)this.fixedUniforms[v].set(n[v]);d&&d.setUniforms(t,this.binderUniforms,h,{zoom:p});for(var y=(m={},m[g.LINES]=2,m[g.TRIANGLES]=3,m[g.LINE_STRIP]=1,m)[e],x=0,b=u.get();x0?1-1/(1.001-n):-n),u_contrast_factor:(a=r.paint.get("raster-contrast"),a>0?1/(1-a):1+a),u_spin_weights:Ui(r.paint.get("raster-hue-rotate"))};var a,n;};function Ui(t){t*=Math.PI/180;var e=Math.sin(t),i=Math.cos(t);return [(2*i+1)/3,(-Math.sqrt(3)*e-i+1)/3,(Math.sqrt(3)*e-i+1)/3]}var Ni=function(t,e,i,o,r,a,n,s,l,c){var u=r.transform;return {u_is_size_zoom_constant:+("constant"===t||"source"===t),u_is_size_feature_constant:+("constant"===t||"camera"===t),u_size_t:e?e.uSizeT:0,u_size:e?e.uSize:0,u_camera_to_center_distance:u.cameraToCenterDistance,u_pitch:u.pitch/360*2*Math.PI,u_rotate_symbol:+i,u_aspect_ratio:u.width/u.height,u_fade_change:r.options.fadeDuration?r.symbolFadeChange:1,u_matrix:a,u_label_plane_matrix:n,u_coord_matrix:s,u_is_text:+l,u_pitch_with_map:+o,u_texsize:c,u_texture:0}},Zi=function(e,i,o,r,a,n,s,l,c,u,h){var p=a.transform;return t.extend(Ni(e,i,o,r,a,n,s,l,c,u),{u_gamma_scale:r?Math.cos(p._pitch)*p.cameraToCenterDistance:1,u_device_pixel_ratio:t.browser.devicePixelRatio,u_is_halo:+h})},Vi=function(t,e,i){return {u_matrix:t,u_opacity:e,u_color:i}},qi=function(e,i,o,r,a,n){return t.extend(function(t,e,i,o){var r=i.imageManager.getPattern(t.from.toString()),a=i.imageManager.getPattern(t.to.toString()),n=i.imageManager.getPixelSize(),s=n.width,l=n.height,c=Math.pow(2,o.tileID.overscaledZ),u=o.tileSize*Math.pow(2,i.transform.tileZoom)/c,h=u*(o.tileID.canonical.x+o.tileID.wrap*c),p=u*o.tileID.canonical.y;return {u_image:0,u_pattern_tl_a:r.tl,u_pattern_br_a:r.br,u_pattern_tl_b:a.tl,u_pattern_br_b:a.br,u_texsize:[s,l],u_mix:e.t,u_pattern_size_a:r.displaySize,u_pattern_size_b:a.displaySize,u_scale_a:e.fromScale,u_scale_b:e.toScale,u_tile_units_to_pixels:1/ue(o,1,i.transform.tileZoom),u_pixel_coord_upper:[h>>16,p>>16],u_pixel_coord_lower:[65535&h,65535&p]}}(r,n,o,a),{u_matrix:e,u_opacity:i})},ji={fillExtrusion:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_lightpos:new t.Uniform3f(e,i.u_lightpos),u_lightintensity:new t.Uniform1f(e,i.u_lightintensity),u_lightcolor:new t.Uniform3f(e,i.u_lightcolor),u_vertical_gradient:new t.Uniform1f(e,i.u_vertical_gradient),u_opacity:new t.Uniform1f(e,i.u_opacity)}},fillExtrusionPattern:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_lightpos:new t.Uniform3f(e,i.u_lightpos),u_lightintensity:new t.Uniform1f(e,i.u_lightintensity),u_lightcolor:new t.Uniform3f(e,i.u_lightcolor),u_vertical_gradient:new t.Uniform1f(e,i.u_vertical_gradient),u_height_factor:new t.Uniform1f(e,i.u_height_factor),u_image:new t.Uniform1i(e,i.u_image),u_texsize:new t.Uniform2f(e,i.u_texsize),u_pixel_coord_upper:new t.Uniform2f(e,i.u_pixel_coord_upper),u_pixel_coord_lower:new t.Uniform2f(e,i.u_pixel_coord_lower),u_scale:new t.Uniform4f(e,i.u_scale),u_fade:new t.Uniform1f(e,i.u_fade),u_opacity:new t.Uniform1f(e,i.u_opacity)}},fill:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix)}},fillPattern:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_image:new t.Uniform1i(e,i.u_image),u_texsize:new t.Uniform2f(e,i.u_texsize),u_pixel_coord_upper:new t.Uniform2f(e,i.u_pixel_coord_upper),u_pixel_coord_lower:new t.Uniform2f(e,i.u_pixel_coord_lower),u_scale:new t.Uniform4f(e,i.u_scale),u_fade:new t.Uniform1f(e,i.u_fade)}},fillOutline:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_world:new t.Uniform2f(e,i.u_world)}},fillOutlinePattern:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_world:new t.Uniform2f(e,i.u_world),u_image:new t.Uniform1i(e,i.u_image),u_texsize:new t.Uniform2f(e,i.u_texsize),u_pixel_coord_upper:new t.Uniform2f(e,i.u_pixel_coord_upper),u_pixel_coord_lower:new t.Uniform2f(e,i.u_pixel_coord_lower),u_scale:new t.Uniform4f(e,i.u_scale),u_fade:new t.Uniform1f(e,i.u_fade)}},circle:function(e,i){return {u_camera_to_center_distance:new t.Uniform1f(e,i.u_camera_to_center_distance),u_scale_with_map:new t.Uniform1i(e,i.u_scale_with_map),u_pitch_with_map:new t.Uniform1i(e,i.u_pitch_with_map),u_extrude_scale:new t.Uniform2f(e,i.u_extrude_scale),u_device_pixel_ratio:new t.Uniform1f(e,i.u_device_pixel_ratio),u_matrix:new t.UniformMatrix4f(e,i.u_matrix)}},collisionBox:Ei,collisionCircle:Ei,debug:function(e,i){return {u_color:new t.UniformColor(e,i.u_color),u_matrix:new t.UniformMatrix4f(e,i.u_matrix)}},clippingMask:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix)}},heatmap:function(e,i){return {u_extrude_scale:new t.Uniform1f(e,i.u_extrude_scale),u_intensity:new t.Uniform1f(e,i.u_intensity),u_matrix:new t.UniformMatrix4f(e,i.u_matrix)}},heatmapTexture:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_world:new t.Uniform2f(e,i.u_world),u_image:new t.Uniform1i(e,i.u_image),u_color_ramp:new t.Uniform1i(e,i.u_color_ramp),u_opacity:new t.Uniform1f(e,i.u_opacity)}},hillshade:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_image:new t.Uniform1i(e,i.u_image),u_latrange:new t.Uniform2f(e,i.u_latrange),u_light:new t.Uniform2f(e,i.u_light),u_shadow:new t.UniformColor(e,i.u_shadow),u_highlight:new t.UniformColor(e,i.u_highlight),u_accent:new t.UniformColor(e,i.u_accent)}},hillshadePrepare:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_image:new t.Uniform1i(e,i.u_image),u_dimension:new t.Uniform2f(e,i.u_dimension),u_zoom:new t.Uniform1f(e,i.u_zoom),u_maxzoom:new t.Uniform1f(e,i.u_maxzoom),u_unpack:new t.Uniform4f(e,i.u_unpack)}},line:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_ratio:new t.Uniform1f(e,i.u_ratio),u_device_pixel_ratio:new t.Uniform1f(e,i.u_device_pixel_ratio),u_units_to_pixels:new t.Uniform2f(e,i.u_units_to_pixels)}},lineGradient:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_ratio:new t.Uniform1f(e,i.u_ratio),u_device_pixel_ratio:new t.Uniform1f(e,i.u_device_pixel_ratio),u_units_to_pixels:new t.Uniform2f(e,i.u_units_to_pixels),u_image:new t.Uniform1i(e,i.u_image)}},linePattern:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_texsize:new t.Uniform2f(e,i.u_texsize),u_ratio:new t.Uniform1f(e,i.u_ratio),u_device_pixel_ratio:new t.Uniform1f(e,i.u_device_pixel_ratio),u_image:new t.Uniform1i(e,i.u_image),u_units_to_pixels:new t.Uniform2f(e,i.u_units_to_pixels),u_scale:new t.Uniform4f(e,i.u_scale),u_fade:new t.Uniform1f(e,i.u_fade)}},lineSDF:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_ratio:new t.Uniform1f(e,i.u_ratio),u_device_pixel_ratio:new t.Uniform1f(e,i.u_device_pixel_ratio),u_units_to_pixels:new t.Uniform2f(e,i.u_units_to_pixels),u_patternscale_a:new t.Uniform2f(e,i.u_patternscale_a),u_patternscale_b:new t.Uniform2f(e,i.u_patternscale_b),u_sdfgamma:new t.Uniform1f(e,i.u_sdfgamma),u_image:new t.Uniform1i(e,i.u_image),u_tex_y_a:new t.Uniform1f(e,i.u_tex_y_a),u_tex_y_b:new t.Uniform1f(e,i.u_tex_y_b),u_mix:new t.Uniform1f(e,i.u_mix)}},raster:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_tl_parent:new t.Uniform2f(e,i.u_tl_parent),u_scale_parent:new t.Uniform1f(e,i.u_scale_parent),u_buffer_scale:new t.Uniform1f(e,i.u_buffer_scale),u_fade_t:new t.Uniform1f(e,i.u_fade_t),u_opacity:new t.Uniform1f(e,i.u_opacity),u_image0:new t.Uniform1i(e,i.u_image0),u_image1:new t.Uniform1i(e,i.u_image1),u_brightness_low:new t.Uniform1f(e,i.u_brightness_low),u_brightness_high:new t.Uniform1f(e,i.u_brightness_high),u_saturation_factor:new t.Uniform1f(e,i.u_saturation_factor),u_contrast_factor:new t.Uniform1f(e,i.u_contrast_factor),u_spin_weights:new t.Uniform3f(e,i.u_spin_weights)}},symbolIcon:function(e,i){return {u_is_size_zoom_constant:new t.Uniform1i(e,i.u_is_size_zoom_constant),u_is_size_feature_constant:new t.Uniform1i(e,i.u_is_size_feature_constant),u_size_t:new t.Uniform1f(e,i.u_size_t),u_size:new t.Uniform1f(e,i.u_size),u_camera_to_center_distance:new t.Uniform1f(e,i.u_camera_to_center_distance),u_pitch:new t.Uniform1f(e,i.u_pitch),u_rotate_symbol:new t.Uniform1i(e,i.u_rotate_symbol),u_aspect_ratio:new t.Uniform1f(e,i.u_aspect_ratio),u_fade_change:new t.Uniform1f(e,i.u_fade_change),u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_label_plane_matrix:new t.UniformMatrix4f(e,i.u_label_plane_matrix),u_coord_matrix:new t.UniformMatrix4f(e,i.u_coord_matrix),u_is_text:new t.Uniform1f(e,i.u_is_text),u_pitch_with_map:new t.Uniform1i(e,i.u_pitch_with_map),u_texsize:new t.Uniform2f(e,i.u_texsize),u_texture:new t.Uniform1i(e,i.u_texture)}},symbolSDF:function(e,i){return {u_is_size_zoom_constant:new t.Uniform1i(e,i.u_is_size_zoom_constant),u_is_size_feature_constant:new t.Uniform1i(e,i.u_is_size_feature_constant),u_size_t:new t.Uniform1f(e,i.u_size_t),u_size:new t.Uniform1f(e,i.u_size),u_camera_to_center_distance:new t.Uniform1f(e,i.u_camera_to_center_distance),u_pitch:new t.Uniform1f(e,i.u_pitch),u_rotate_symbol:new t.Uniform1i(e,i.u_rotate_symbol),u_aspect_ratio:new t.Uniform1f(e,i.u_aspect_ratio),u_fade_change:new t.Uniform1f(e,i.u_fade_change),u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_label_plane_matrix:new t.UniformMatrix4f(e,i.u_label_plane_matrix),u_coord_matrix:new t.UniformMatrix4f(e,i.u_coord_matrix),u_is_text:new t.Uniform1f(e,i.u_is_text),u_pitch_with_map:new t.Uniform1i(e,i.u_pitch_with_map),u_texsize:new t.Uniform2f(e,i.u_texsize),u_texture:new t.Uniform1i(e,i.u_texture),u_gamma_scale:new t.Uniform1f(e,i.u_gamma_scale),u_device_pixel_ratio:new t.Uniform1f(e,i.u_device_pixel_ratio),u_is_halo:new t.Uniform1f(e,i.u_is_halo)}},background:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_opacity:new t.Uniform1f(e,i.u_opacity),u_color:new t.UniformColor(e,i.u_color)}},backgroundPattern:function(e,i){return {u_matrix:new t.UniformMatrix4f(e,i.u_matrix),u_opacity:new t.Uniform1f(e,i.u_opacity),u_image:new t.Uniform1i(e,i.u_image),u_pattern_tl_a:new t.Uniform2f(e,i.u_pattern_tl_a),u_pattern_br_a:new t.Uniform2f(e,i.u_pattern_br_a),u_pattern_tl_b:new t.Uniform2f(e,i.u_pattern_tl_b),u_pattern_br_b:new t.Uniform2f(e,i.u_pattern_br_b),u_texsize:new t.Uniform2f(e,i.u_texsize),u_mix:new t.Uniform1f(e,i.u_mix),u_pattern_size_a:new t.Uniform2f(e,i.u_pattern_size_a),u_pattern_size_b:new t.Uniform2f(e,i.u_pattern_size_b),u_scale_a:new t.Uniform1f(e,i.u_scale_a),u_scale_b:new t.Uniform1f(e,i.u_scale_b),u_pixel_coord_upper:new t.Uniform2f(e,i.u_pixel_coord_upper),u_pixel_coord_lower:new t.Uniform2f(e,i.u_pixel_coord_lower),u_tile_units_to_pixels:new t.Uniform1f(e,i.u_tile_units_to_pixels)}}};function Gi(e,i){for(var o=e.sort((function(t,e){return t.tileID.isLessThan(e.tileID)?-1:e.tileID.isLessThan(t.tileID)?1:0})),r=0;r=0&&(f[g.associatedIconIndex]={shiftedAnchor:S,angle:P});}else ne(g.numGlyphs,d);}if(h){_.clear();for(var L=e.icon.placedSymbolArray,D=0;D0){var s=t.browser.now(),l=(s-e.timeAdded)/n,c=i?(s-i.timeAdded)/n:-1,u=o.getSource(),h=a.coveringZoomLevel({tileSize:u.tileSize,roundZoom:u.roundZoom}),p=!i||Math.abs(i.tileID.overscaledZ-h)>Math.abs(e.tileID.overscaledZ-h),d=p&&e.refreshedUponExpiration?1:t.clamp(p?l:1-c,0,1);return e.refreshedUponExpiration&&l>=1&&(e.refreshedUponExpiration=!1),i?{opacity:1,mix:1-d}:{opacity:d,mix:0}}return {opacity:1,mix:0}}function no(e,i,o){var r=e.context,a=r.gl,n=o.posMatrix,s=e.useProgram("debug"),l=It.disabled,c=Ct.disabled,u=e.colorModeForRenderPass(),h="$debug";s.draw(r,a.LINE_STRIP,l,c,u,Pt.disabled,Ii(n,t.Color.red),h,e.debugBuffer,e.tileBorderIndexBuffer,e.debugSegments);for(var p=i.getTileByID(o.key).latestRawTileData,d=p&&p.byteLength||0,_=Math.floor(d/1024),f=i.getTile(o).tileSize,m=512/Math.min(f,512),g=function(t,e,i,o){o=o||1;var r,a,n,s,l,c,u,h,p=[];for(r=0,a=t.length;r":[24,[4,18,20,9,4,0]],"?":[18,[3,16,3,17,4,19,5,20,7,21,11,21,13,20,14,19,15,17,15,15,14,13,13,12,9,10,9,7,-1,-1,9,2,8,1,9,0,10,1,9,2]],"@":[27,[18,13,17,15,15,16,12,16,10,15,9,14,8,11,8,8,9,6,11,5,14,5,16,6,17,8,-1,-1,12,16,10,14,9,11,9,8,10,6,11,5,-1,-1,18,16,17,8,17,6,19,5,21,5,23,7,24,10,24,12,23,15,22,17,20,19,18,20,15,21,12,21,9,20,7,19,5,17,4,15,3,12,3,9,4,6,5,4,7,2,9,1,12,0,15,0,18,1,20,2,21,3,-1,-1,19,16,18,8,18,6,19,5]],A:[18,[9,21,1,0,-1,-1,9,21,17,0,-1,-1,4,7,14,7]],B:[21,[4,21,4,0,-1,-1,4,21,13,21,16,20,17,19,18,17,18,15,17,13,16,12,13,11,-1,-1,4,11,13,11,16,10,17,9,18,7,18,4,17,2,16,1,13,0,4,0]],C:[21,[18,16,17,18,15,20,13,21,9,21,7,20,5,18,4,16,3,13,3,8,4,5,5,3,7,1,9,0,13,0,15,1,17,3,18,5]],D:[21,[4,21,4,0,-1,-1,4,21,11,21,14,20,16,18,17,16,18,13,18,8,17,5,16,3,14,1,11,0,4,0]],E:[19,[4,21,4,0,-1,-1,4,21,17,21,-1,-1,4,11,12,11,-1,-1,4,0,17,0]],F:[18,[4,21,4,0,-1,-1,4,21,17,21,-1,-1,4,11,12,11]],G:[21,[18,16,17,18,15,20,13,21,9,21,7,20,5,18,4,16,3,13,3,8,4,5,5,3,7,1,9,0,13,0,15,1,17,3,18,5,18,8,-1,-1,13,8,18,8]],H:[22,[4,21,4,0,-1,-1,18,21,18,0,-1,-1,4,11,18,11]],I:[8,[4,21,4,0]],J:[16,[12,21,12,5,11,2,10,1,8,0,6,0,4,1,3,2,2,5,2,7]],K:[21,[4,21,4,0,-1,-1,18,21,4,7,-1,-1,9,12,18,0]],L:[17,[4,21,4,0,-1,-1,4,0,16,0]],M:[24,[4,21,4,0,-1,-1,4,21,12,0,-1,-1,20,21,12,0,-1,-1,20,21,20,0]],N:[22,[4,21,4,0,-1,-1,4,21,18,0,-1,-1,18,21,18,0]],O:[22,[9,21,7,20,5,18,4,16,3,13,3,8,4,5,5,3,7,1,9,0,13,0,15,1,17,3,18,5,19,8,19,13,18,16,17,18,15,20,13,21,9,21]],P:[21,[4,21,4,0,-1,-1,4,21,13,21,16,20,17,19,18,17,18,14,17,12,16,11,13,10,4,10]],Q:[22,[9,21,7,20,5,18,4,16,3,13,3,8,4,5,5,3,7,1,9,0,13,0,15,1,17,3,18,5,19,8,19,13,18,16,17,18,15,20,13,21,9,21,-1,-1,12,4,18,-2]],R:[21,[4,21,4,0,-1,-1,4,21,13,21,16,20,17,19,18,17,18,15,17,13,16,12,13,11,4,11,-1,-1,11,11,18,0]],S:[20,[17,18,15,20,12,21,8,21,5,20,3,18,3,16,4,14,5,13,7,12,13,10,15,9,16,8,17,6,17,3,15,1,12,0,8,0,5,1,3,3]],T:[16,[8,21,8,0,-1,-1,1,21,15,21]],U:[22,[4,21,4,6,5,3,7,1,10,0,12,0,15,1,17,3,18,6,18,21]],V:[18,[1,21,9,0,-1,-1,17,21,9,0]],W:[24,[2,21,7,0,-1,-1,12,21,7,0,-1,-1,12,21,17,0,-1,-1,22,21,17,0]],X:[20,[3,21,17,0,-1,-1,17,21,3,0]],Y:[18,[1,21,9,11,9,0,-1,-1,17,21,9,11]],Z:[20,[17,21,3,0,-1,-1,3,21,17,21,-1,-1,3,0,17,0]],"[":[14,[4,25,4,-7,-1,-1,5,25,5,-7,-1,-1,4,25,11,25,-1,-1,4,-7,11,-7]],"\\":[14,[0,21,14,-3]],"]":[14,[9,25,9,-7,-1,-1,10,25,10,-7,-1,-1,3,25,10,25,-1,-1,3,-7,10,-7]],"^":[16,[6,15,8,18,10,15,-1,-1,3,12,8,17,13,12,-1,-1,8,17,8,0]],_:[16,[0,-2,16,-2]],"`":[10,[6,21,5,20,4,18,4,16,5,15,6,16,5,17]],a:[19,[15,14,15,0,-1,-1,15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],b:[19,[4,21,4,0,-1,-1,4,11,6,13,8,14,11,14,13,13,15,11,16,8,16,6,15,3,13,1,11,0,8,0,6,1,4,3]],c:[18,[15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],d:[19,[15,21,15,0,-1,-1,15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],e:[18,[3,8,15,8,15,10,14,12,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],f:[12,[10,21,8,21,6,20,5,17,5,0,-1,-1,2,14,9,14]],g:[19,[15,14,15,-2,14,-5,13,-6,11,-7,8,-7,6,-6,-1,-1,15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],h:[19,[4,21,4,0,-1,-1,4,10,7,13,9,14,12,14,14,13,15,10,15,0]],i:[8,[3,21,4,20,5,21,4,22,3,21,-1,-1,4,14,4,0]],j:[10,[5,21,6,20,7,21,6,22,5,21,-1,-1,6,14,6,-3,5,-6,3,-7,1,-7]],k:[17,[4,21,4,0,-1,-1,14,14,4,4,-1,-1,8,8,15,0]],l:[8,[4,21,4,0]],m:[30,[4,14,4,0,-1,-1,4,10,7,13,9,14,12,14,14,13,15,10,15,0,-1,-1,15,10,18,13,20,14,23,14,25,13,26,10,26,0]],n:[19,[4,14,4,0,-1,-1,4,10,7,13,9,14,12,14,14,13,15,10,15,0]],o:[19,[8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3,16,6,16,8,15,11,13,13,11,14,8,14]],p:[19,[4,14,4,-7,-1,-1,4,11,6,13,8,14,11,14,13,13,15,11,16,8,16,6,15,3,13,1,11,0,8,0,6,1,4,3]],q:[19,[15,14,15,-7,-1,-1,15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],r:[13,[4,14,4,0,-1,-1,4,8,5,11,7,13,9,14,12,14]],s:[17,[14,11,13,13,10,14,7,14,4,13,3,11,4,9,6,8,11,7,13,6,14,4,14,3,13,1,10,0,7,0,4,1,3,3]],t:[12,[5,21,5,4,6,1,8,0,10,0,-1,-1,2,14,9,14]],u:[19,[4,14,4,4,5,1,7,0,10,0,12,1,15,4,-1,-1,15,14,15,0]],v:[16,[2,14,8,0,-1,-1,14,14,8,0]],w:[22,[3,14,7,0,-1,-1,11,14,7,0,-1,-1,11,14,15,0,-1,-1,19,14,15,0]],x:[17,[3,14,14,0,-1,-1,14,14,3,0]],y:[16,[2,14,8,0,-1,-1,14,14,8,0,6,-4,4,-6,2,-7,1,-7]],z:[17,[14,14,3,0,-1,-1,3,14,14,14,-1,-1,3,0,14,0]],"{":[14,[9,25,7,24,6,23,5,21,5,19,6,17,7,16,8,14,8,12,6,10,-1,-1,7,24,6,22,6,20,7,18,8,17,9,15,9,13,8,11,4,9,8,7,9,5,9,3,8,1,7,0,6,-2,6,-4,7,-6,-1,-1,6,8,8,6,8,4,7,2,6,1,5,-1,5,-3,6,-5,7,-6,9,-7]],"|":[8,[4,25,4,-7]],"}":[14,[5,25,7,24,8,23,9,21,9,19,8,17,7,16,6,14,6,12,8,10,-1,-1,7,24,8,22,8,20,7,18,6,17,5,15,5,13,6,11,10,9,6,7,5,5,5,3,6,1,7,0,8,-2,8,-4,7,-6,-1,-1,8,8,6,6,6,4,7,2,8,1,9,-1,9,-3,8,-5,7,-6,5,-7]],"~":[24,[3,6,3,8,4,11,6,12,8,12,10,11,14,8,16,7,18,7,20,8,21,10,-1,-1,3,8,4,10,6,11,8,11,10,10,14,7,16,6,18,6,20,7,21,10,21,12]]};var lo={symbol:function(e,i,o,r,a){if("translucent"===e.renderPass){var n=Ct.disabled,s=e.colorModeForRenderPass();o.layout.get("text-variable-anchor")&&function(e,i,o,r,a,n,s){for(var l=i.transform,c="map"===a,u="map"===n,h=0,p=e;he.y){var i=t;t=e,e=i;}return {x0:t.x,y0:t.y,x1:e.x,y1:e.y,dx:e.x-t.x,dy:e.y-t.y}}function ho(t,e,i,o,r){var a=Math.max(i,Math.floor(e.y0)),n=Math.min(o,Math.ceil(e.y1));if(t.x0===e.x0&&t.y0===e.y0?t.x0+e.dy/t.dy*t.dx0,h=e.dx<0,p=a;pl.dy&&(n=s,s=l,l=n),s.dy>c.dy&&(n=s,s=c,c=n),l.dy>c.dy&&(n=l,l=c,c=n),s.dy&&ho(c,s,o,r,a),l.dy&&ho(c,l,o,r,a);}co.prototype.resize=function(e,i){var o=this.context.gl;if(this.width=e*t.browser.devicePixelRatio,this.height=i*t.browser.devicePixelRatio,this.context.viewport.set([0,0,this.width,this.height]),this.style)for(var r=0,a=this.style._order;r256&&this.clearStencil(),i.setColorMode(St.disabled),i.setDepthMode(It.disabled);var r=this.useProgram("clippingMask");this._tileClippingMaskIDs={};for(var a=0,n=e;a256&&this.clearStencil();var t=this.nextStencilID++,e=this.context.gl;return new Ct({func:e.NOTEQUAL,mask:255},t,255,e.KEEP,e.KEEP,e.REPLACE)},co.prototype.stencilModeForClipping=function(t){var e=this.context.gl;return new Ct({func:e.EQUAL,mask:255},this._tileClippingMaskIDs[t.key],0,e.KEEP,e.KEEP,e.REPLACE)},co.prototype.colorModeForRenderPass=function(){var e=this.context.gl;if(this._showOverdrawInspector){return new St([e.CONSTANT_COLOR,e.ONE],new t.Color(1/8,1/8,1/8,0),[!0,!0,!0,!0])}return "opaque"===this.renderPass?St.unblended:St.alphaBlended},co.prototype.depthModeForSublayer=function(t,e,i){if(!this.opaquePassEnabledForLayer())return It.disabled;var o=1-((1+this.currentLayer)*this.numSublayers+t)*this.depthEpsilon;return new It(i||this.context.gl.LEQUAL,e,[o,o])},co.prototype.opaquePassEnabledForLayer=function(){return this.currentLayer=0;this.currentLayer--){var C=this.style._layers[o[this.currentLayer]],S=r[C.source],P=s[C.source];this._renderTileClippingMasks(C,P),this.renderLayer(this,S,C,P);}for(this.renderPass="translucent",this.currentLayer=0;this.currentLayer0?e.pop():null},co.prototype.isPatternMissing=function(t){if(!t)return !1;var e=this.imageManager.getPattern(t.from.toString()),i=this.imageManager.getPattern(t.to.toString());return !e||!i},co.prototype.useProgram=function(t,e){void 0===e&&(e=this.emptyProgramConfiguration),this.cache=this.cache||{};var i=""+t+(e.cacheKey||"")+(this._showOverdrawInspector?"/overdraw":"");return this.cache[i]||(this.cache[i]=new _i(this.context,pi[t],e,ji[t],this._showOverdrawInspector)),this.cache[i]},co.prototype.setCustomLayerDefaults=function(){this.context.unbindVAO(),this.context.cullFace.setDefault(),this.context.activeTexture.setDefault(),this.context.pixelStoreUnpack.setDefault(),this.context.pixelStoreUnpackPremultiplyAlpha.setDefault(),this.context.pixelStoreUnpackFlipY.setDefault();},co.prototype.setBaseState=function(){var t=this.context.gl;this.context.cullFace.set(!1),this.context.viewport.set([0,0,this.width,this.height]),this.context.blendEquation.set(t.FUNC_ADD);};var _o=function(e,i,o){this.tileSize=512,this.maxValidLatitude=85.051129,this._renderWorldCopies=void 0===o||o,this._minZoom=e||0,this._maxZoom=i||22,this.setMaxBounds(),this.width=0,this.height=0,this._center=new t.LngLat(0,0),this.zoom=0,this.angle=0,this._fov=.6435011087932844,this._pitch=0,this._unmodified=!0,this._posMatrixCache={},this._alignedPosMatrixCache={};},fo={minZoom:{configurable:!0},maxZoom:{configurable:!0},renderWorldCopies:{configurable:!0},worldSize:{configurable:!0},centerPoint:{configurable:!0},size:{configurable:!0},bearing:{configurable:!0},pitch:{configurable:!0},fov:{configurable:!0},zoom:{configurable:!0},center:{configurable:!0},unmodified:{configurable:!0},point:{configurable:!0}};_o.prototype.clone=function(){var t=new _o(this._minZoom,this._maxZoom,this._renderWorldCopies);return t.tileSize=this.tileSize,t.latRange=this.latRange,t.width=this.width,t.height=this.height,t._center=this._center,t.zoom=this.zoom,t.angle=this.angle,t._fov=this._fov,t._pitch=this._pitch,t._unmodified=this._unmodified,t._calcMatrices(),t},fo.minZoom.get=function(){return this._minZoom},fo.minZoom.set=function(t){this._minZoom!==t&&(this._minZoom=t,this.zoom=Math.max(this.zoom,t));},fo.maxZoom.get=function(){return this._maxZoom},fo.maxZoom.set=function(t){this._maxZoom!==t&&(this._maxZoom=t,this.zoom=Math.min(this.zoom,t));},fo.renderWorldCopies.get=function(){return this._renderWorldCopies},fo.renderWorldCopies.set=function(t){void 0===t?t=!0:null===t&&(t=!1),this._renderWorldCopies=t;},fo.worldSize.get=function(){return this.tileSize*this.scale},fo.centerPoint.get=function(){return this.size._div(2)},fo.size.get=function(){return new t.Point(this.width,this.height)},fo.bearing.get=function(){return -this.angle/Math.PI*180},fo.bearing.set=function(e){var i=-t.wrap(e,-180,180)*Math.PI/180;this.angle!==i&&(this._unmodified=!1,this.angle=i,this._calcMatrices(),this.rotationMatrix=t.create$2(),t.rotate(this.rotationMatrix,this.rotationMatrix,this.angle));},fo.pitch.get=function(){return this._pitch/Math.PI*180},fo.pitch.set=function(e){var i=t.clamp(e,0,60)/180*Math.PI;this._pitch!==i&&(this._unmodified=!1,this._pitch=i,this._calcMatrices());},fo.fov.get=function(){return this._fov/Math.PI*180},fo.fov.set=function(t){t=Math.max(.01,Math.min(60,t)),this._fov!==t&&(this._unmodified=!1,this._fov=t/180*Math.PI,this._calcMatrices());},fo.zoom.get=function(){return this._zoom},fo.zoom.set=function(t){var e=Math.min(Math.max(t,this.minZoom),this.maxZoom);this._zoom!==e&&(this._unmodified=!1,this._zoom=e,this.scale=this.zoomScale(e),this.tileZoom=Math.floor(e),this.zoomFraction=e-this.tileZoom,this._constrain(),this._calcMatrices());},fo.center.get=function(){return this._center},fo.center.set=function(t){t.lat===this._center.lat&&t.lng===this._center.lng||(this._unmodified=!1,this._center=t,this._constrain(),this._calcMatrices());},_o.prototype.coveringZoomLevel=function(t){return (t.roundZoom?Math.round:Math.floor)(this.zoom+this.scaleZoom(this.tileSize/t.tileSize))},_o.prototype.getVisibleUnwrappedCoordinates=function(e){var i=[new t.UnwrappedTileID(0,e)];if(this._renderWorldCopies)for(var o=this.pointCoordinate(new t.Point(0,0)),r=this.pointCoordinate(new t.Point(this.width,0)),a=this.pointCoordinate(new t.Point(this.width,this.height)),n=this.pointCoordinate(new t.Point(0,this.height)),s=Math.floor(Math.min(o.x,r.x,a.x,n.x)),l=Math.floor(Math.max(o.x,r.x,a.x,n.x)),c=s-1;c<=l+1;c++)0!==c&&i.push(new t.UnwrappedTileID(c,e));return i},_o.prototype.coveringTiles=function(e){var i=this.coveringZoomLevel(e),o=i;if(void 0!==e.minzoom&&ie.maxzoom&&(i=e.maxzoom);var r=t.MercatorCoordinate.fromLngLat(this.center),a=Math.pow(2,i),n=new t.Point(a*r.x-.5,a*r.y-.5);return function(e,i,o,r){void 0===r&&(r=!0);var a=1<=0&&l<=a)for(c=i;cn&&(r=n-m);}if(this.lngRange){var g=d.x,v=c.x/2;g-vl&&(o=l-v);}void 0===o&&void 0===r||(this.center=this.unproject(new t.Point(void 0!==o?o:d.x,void 0!==r?r:d.y))),this._unmodified=u,this._constraining=!1;}},_o.prototype._calcMatrices=function(){if(this.height){this.cameraToCenterDistance=.5/Math.tan(this._fov/2)*this.height;var e=this._fov/2,i=Math.PI/2+this._pitch,o=Math.sin(e)*this.cameraToCenterDistance/Math.sin(Math.PI-i-e),r=this.point,a=r.x,n=r.y,s=1.01*(Math.cos(Math.PI/2-this._pitch)*o+this.cameraToCenterDistance),l=this.height/50,c=new Float64Array(16);t.perspective(c,this._fov,this.width/this.height,l,s),t.scale(c,c,[1,-1,1]),t.translate(c,c,[0,0,-this.cameraToCenterDistance]),t.rotateX(c,c,this._pitch),t.rotateZ(c,c,this.angle),t.translate(c,c,[-a,-n,0]),this.mercatorMatrix=t.scale([],c,[this.worldSize,this.worldSize,this.worldSize]),t.scale(c,c,[1,1,t.mercatorZfromAltitude(1,this.center.lat)*this.worldSize,1]),this.projMatrix=c;var u=this.width%2/2,h=this.height%2/2,p=Math.cos(this.angle),d=Math.sin(this.angle),_=a-Math.round(a)+p*u+d*h,f=n-Math.round(n)+p*h+d*u,m=new Float64Array(c);if(t.translate(m,m,[_>.5?_-1:_,f>.5?f-1:f,0]),this.alignedProjMatrix=m,c=t.create(),t.scale(c,c,[this.width/2,-this.height/2,1]),t.translate(c,c,[1,-1,0]),this.labelPlaneMatrix=c,c=t.create(),t.scale(c,c,[1,-1,1]),t.translate(c,c,[-1,-1,0]),t.scale(c,c,[2/this.width,2/this.height,1]),this.glCoordMatrix=c,this.pixelMatrix=t.multiply(new Float64Array(16),this.labelPlaneMatrix,this.projMatrix),!(c=t.invert(new Float64Array(16),this.pixelMatrix)))throw new Error("failed to invert matrix");this.pixelMatrixInverse=c,this._posMatrixCache={},this._alignedPosMatrixCache={};}},_o.prototype.maxPitchScaleFactor=function(){if(!this.pixelMatrixInverse)return 1;var e=this.pointCoordinate(new t.Point(0,0)),i=[e.x*this.worldSize,e.y*this.worldSize,0,1];return t.transformMat4(i,i,this.pixelMatrix)[3]/this.cameraToCenterDistance},_o.prototype.getCameraPoint=function(){var e=this._pitch,i=Math.tan(e)*(this.cameraToCenterDistance||1);return this.centerPoint.add(new t.Point(0,i))},_o.prototype.getCameraQueryGeometry=function(e){var i=this.getCameraPoint();if(1===e.length)return [e[0],i];for(var o=i.x,r=i.y,a=i.x,n=i.y,s=0,l=e;s=3&&(this._map.jumpTo({center:[+e[2],+e[1]],zoom:+e[0],bearing:+(e[3]||0),pitch:+(e[4]||0)}),!0)},mo.prototype._updateHashUnthrottled=function(){var e=this.getHashString();try{t.window.history.replaceState(t.window.history.state,"",e);}catch(t){}};var go=function(e){function o(o,r,a,n){void 0===n&&(n={});var s=i.mousePos(r.getCanvasContainer(),a),l=r.unproject(s);e.call(this,o,t.extend({point:s,lngLat:l,originalEvent:a},n)),this._defaultPrevented=!1,this.target=r;}e&&(o.__proto__=e),o.prototype=Object.create(e&&e.prototype),o.prototype.constructor=o;var r={defaultPrevented:{configurable:!0}};return o.prototype.preventDefault=function(){this._defaultPrevented=!0;},r.defaultPrevented.get=function(){return this._defaultPrevented},Object.defineProperties(o.prototype,r),o}(t.Event),vo=function(e){function o(o,r,a){var n=i.touchPos(r.getCanvasContainer(),a),s=n.map((function(t){return r.unproject(t)})),l=n.reduce((function(t,e,i,o){return t.add(e.div(o.length))}),new t.Point(0,0)),c=r.unproject(l);e.call(this,o,{points:n,point:l,lngLats:s,lngLat:c,originalEvent:a}),this._defaultPrevented=!1;}e&&(o.__proto__=e),o.prototype=Object.create(e&&e.prototype),o.prototype.constructor=o;var r={defaultPrevented:{configurable:!0}};return o.prototype.preventDefault=function(){this._defaultPrevented=!0;},r.defaultPrevented.get=function(){return this._defaultPrevented},Object.defineProperties(o.prototype,r),o}(t.Event),yo=function(t){function e(e,i,o){t.call(this,e,{originalEvent:o}),this._defaultPrevented=!1;}t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e;var i={defaultPrevented:{configurable:!0}};return e.prototype.preventDefault=function(){this._defaultPrevented=!0;},i.defaultPrevented.get=function(){return this._defaultPrevented},Object.defineProperties(e.prototype,i),e}(t.Event),xo=function(e){this._map=e,this._el=e.getCanvasContainer(),this._delta=0,this._defaultZoomRate=.01,this._wheelZoomRate=1/450,t.bindAll(["_onWheel","_onTimeout","_onScrollFrame","_onScrollFinished"],this);};xo.prototype.setZoomRate=function(t){this._defaultZoomRate=t;},xo.prototype.setWheelZoomRate=function(t){this._wheelZoomRate=t;},xo.prototype.isEnabled=function(){return !!this._enabled},xo.prototype.isActive=function(){return !!this._active},xo.prototype.isZooming=function(){return !!this._zooming},xo.prototype.enable=function(t){this.isEnabled()||(this._enabled=!0,this._aroundCenter=t&&"center"===t.around);},xo.prototype.disable=function(){this.isEnabled()&&(this._enabled=!1);},xo.prototype.onWheel=function(e){if(this.isEnabled()){var i=e.deltaMode===t.window.WheelEvent.DOM_DELTA_LINE?40*e.deltaY:e.deltaY,o=t.browser.now(),r=o-(this._lastWheelEventTime||0);this._lastWheelEventTime=o,0!==i&&i%4.000244140625==0?this._type="wheel":0!==i&&Math.abs(i)<4?this._type="trackpad":r>400?(this._type=null,this._lastValue=i,this._timeout=setTimeout(this._onTimeout,40,e)):this._type||(this._type=Math.abs(r*i)<200?"trackpad":"wheel",this._timeout&&(clearTimeout(this._timeout),this._timeout=null,i+=this._lastValue)),e.shiftKey&&i&&(i/=4),this._type&&(this._lastWheelEvent=e,this._delta-=i,this.isActive()||this._start(e)),e.preventDefault();}},xo.prototype._onTimeout=function(t){this._type="wheel",this._delta-=this._lastValue,this.isActive()||this._start(t);},xo.prototype._start=function(e){if(this._delta){this._frameId&&(this._map._cancelRenderFrame(this._frameId),this._frameId=null),this._active=!0,this.isZooming()||(this._zooming=!0,this._map.fire(new t.Event("movestart",{originalEvent:e})),this._map.fire(new t.Event("zoomstart",{originalEvent:e}))),this._finishTimeout&&clearTimeout(this._finishTimeout);var o=i.mousePos(this._el,e);this._around=t.LngLat.convert(this._aroundCenter?this._map.getCenter():this._map.unproject(o)),this._aroundPoint=this._map.transform.locationPoint(this._around),this._frameId||(this._frameId=this._map._requestRenderFrame(this._onScrollFrame));}},xo.prototype._onScrollFrame=function(){var e=this;if(this._frameId=null,this.isActive()){var i=this._map.transform;if(0!==this._delta){var o="wheel"===this._type&&Math.abs(this._delta)>4.000244140625?this._wheelZoomRate:this._defaultZoomRate,r=2/(1+Math.exp(-Math.abs(this._delta*o)));this._delta<0&&0!==r&&(r=1/r);var a="number"==typeof this._targetZoom?i.zoomScale(this._targetZoom):i.scale;this._targetZoom=Math.min(i.maxZoom,Math.max(i.minZoom,i.scaleZoom(a*r))),"wheel"===this._type&&(this._startZoom=i.zoom,this._easing=this._smoothOutEasing(200)),this._delta=0;}var n="number"==typeof this._targetZoom?this._targetZoom:i.zoom,s=this._startZoom,l=this._easing,c=!1;if("wheel"===this._type&&s&&l){var u=Math.min((t.browser.now()-this._lastWheelEventTime)/200,1),h=l(u);i.zoom=t.number(s,n,h),u<1?this._frameId||(this._frameId=this._map._requestRenderFrame(this._onScrollFrame)):c=!0;}else i.zoom=n,c=!0;i.setLocationAtPoint(this._around,this._aroundPoint),this._map.fire(new t.Event("move",{originalEvent:this._lastWheelEvent})),this._map.fire(new t.Event("zoom",{originalEvent:this._lastWheelEvent})),c&&(this._active=!1,this._finishTimeout=setTimeout((function(){e._zooming=!1,e._map.fire(new t.Event("zoomend",{originalEvent:e._lastWheelEvent})),e._map.fire(new t.Event("moveend",{originalEvent:e._lastWheelEvent})),delete e._targetZoom;}),200));}},xo.prototype._smoothOutEasing=function(e){var i=t.ease;if(this._prevEase){var o=this._prevEase,r=(t.browser.now()-o.start)/o.duration,a=o.easing(r+.01)-o.easing(r),n=.27/Math.sqrt(a*a+1e-4)*.01,s=Math.sqrt(.0729-n*n);i=t.bezier(n,s,.25,1);}return this._prevEase={start:t.browser.now(),duration:e,easing:i},i};var bo=function(e,i){this._map=e,this._el=e.getCanvasContainer(),this._container=e.getContainer(),this._clickTolerance=i.clickTolerance||1,t.bindAll(["_onMouseMove","_onMouseUp","_onKeyDown"],this);};bo.prototype.isEnabled=function(){return !!this._enabled},bo.prototype.isActive=function(){return !!this._active},bo.prototype.enable=function(){this.isEnabled()||(this._enabled=!0);},bo.prototype.disable=function(){this.isEnabled()&&(this._enabled=!1);},bo.prototype.onMouseDown=function(e){this.isEnabled()&&e.shiftKey&&0===e.button&&(t.window.document.addEventListener("mousemove",this._onMouseMove,!1),t.window.document.addEventListener("keydown",this._onKeyDown,!1),t.window.document.addEventListener("mouseup",this._onMouseUp,!1),i.disableDrag(),this._startPos=this._lastPos=i.mousePos(this._el,e),this._active=!0);},bo.prototype._onMouseMove=function(t){var e=i.mousePos(this._el,t);if(!(this._lastPos.equals(e)||!this._box&&e.dist(this._startPos)180&&(d=180);var _=d/180;c+=h*d*(_/2),Math.abs(i._normalizeBearing(c,0))0&&i-e[0][0]>160;)e.shift();};var To=t.bezier(0,0,.3,1),Io=function(e,i){this._map=e,this._el=e.getCanvasContainer(),this._state="disabled",this._clickTolerance=i.clickTolerance||1,t.bindAll(["_onMove","_onMouseUp","_onTouchEnd","_onBlur","_onDragFrame"],this);};Io.prototype.isEnabled=function(){return "disabled"!==this._state},Io.prototype.isActive=function(){return "active"===this._state},Io.prototype.enable=function(){this.isEnabled()||(this._el.classList.add("mapboxgl-touch-drag-pan"),this._state="enabled");},Io.prototype.disable=function(){if(this.isEnabled())switch(this._el.classList.remove("mapboxgl-touch-drag-pan"),this._state){case"active":this._state="disabled",this._unbind(),this._deactivate(),this._fireEvent("dragend"),this._fireEvent("moveend");break;case"pending":this._state="disabled",this._unbind();break;default:this._state="disabled";}},Io.prototype.onMouseDown=function(e){"enabled"===this._state&&(e.ctrlKey||0!==i.mouseButton(e)||(i.addEventListener(t.window.document,"mousemove",this._onMove,{capture:!0}),i.addEventListener(t.window.document,"mouseup",this._onMouseUp),this._start(e)));},Io.prototype.onTouchStart=function(e){this.isEnabled()&&(e.touches&&e.touches.length>1&&("pending"===this._state||"active"===this._state)||(i.addEventListener(t.window.document,"touchmove",this._onMove,{capture:!0,passive:!1}),i.addEventListener(t.window.document,"touchend",this._onTouchEnd),this._start(e)));},Io.prototype._start=function(e){t.window.addEventListener("blur",this._onBlur),this._state="pending",this._startPos=this._mouseDownPos=this._prevPos=this._lastPos=i.mousePos(this._el,e),this._startTouch=this._lastTouch=t.window.TouchEvent&&e instanceof t.window.TouchEvent?i.touchPos(this._el,e):null,this._inertia=[[t.browser.now(),this._startPos]];},Io.prototype._touchesMatch=function(t,e){return !(!t||!e||t.length!==e.length)&&t.every((function(t,i){return e[i]===t}))},Io.prototype._onMove=function(e){e.preventDefault();var o=t.window.TouchEvent&&e instanceof t.window.TouchEvent?i.touchPos(this._el,e):null,r=i.mousePos(this._el,e);(o?this._touchesMatch(this._lastTouch,o):this._lastPos.equals(r))||"pending"===this._state&&r.dist(this._mouseDownPos)1&&i.addEventListener(t.window.document,"touchend",this._onTouchEnd);break;case"pending":this._state="enabled",this._unbind();break;case"enabled":this._unbind();}},Io.prototype._onBlur=function(t){this._abort(t);},Io.prototype._unbind=function(){i.removeEventListener(t.window.document,"touchmove",this._onMove,{capture:!0,passive:!1}),i.removeEventListener(t.window.document,"touchend",this._onTouchEnd),i.removeEventListener(t.window.document,"mousemove",this._onMove,{capture:!0}),i.removeEventListener(t.window.document,"mouseup",this._onMouseUp),i.removeEventListener(t.window,"blur",this._onBlur);},Io.prototype._deactivate=function(){this._frameId&&(this._map._cancelRenderFrame(this._frameId),this._frameId=null),delete this._lastMoveEvent,delete this._startPos,delete this._prevPos,delete this._mouseDownPos,delete this._lastPos,delete this._startTouch,delete this._lastTouch,delete this._shouldStart;},Io.prototype._inertialPan=function(t){this._fireEvent("dragend",t),this._drainInertiaBuffer();var e=this._inertia;if(e.length<2)this._fireEvent("moveend",t);else{var i=e[e.length-1],o=e[0],r=i[1].sub(o[1]),a=(i[0]-o[0])/1e3;if(0===a||i[1].equals(o[1]))this._fireEvent("moveend",t);else{var n=r.mult(.3/a),s=n.mag();s>1400&&(s=1400,n._unit()._mult(s));var l=s/750,c=n.mult(-l/2);this._map.panBy(c,{duration:1e3*l,easing:To,noMoveStart:!0},{originalEvent:t});}}},Io.prototype._fireEvent=function(e,i){return this._map.fire(new t.Event(e,i?{originalEvent:i}:{}))},Io.prototype._drainInertiaBuffer=function(){for(var e=this._inertia,i=t.browser.now();e.length>0&&i-e[0][0]>160;)e.shift();};var Co=function(e){this._map=e,this._el=e.getCanvasContainer(),t.bindAll(["_onKeyDown"],this);};function So(t){return t*(2-t)}Co.prototype.isEnabled=function(){return !!this._enabled},Co.prototype.enable=function(){this.isEnabled()||(this._el.addEventListener("keydown",this._onKeyDown,!1),this._enabled=!0);},Co.prototype.disable=function(){this.isEnabled()&&(this._el.removeEventListener("keydown",this._onKeyDown),this._enabled=!1);},Co.prototype._onKeyDown=function(t){if(!(t.altKey||t.ctrlKey||t.metaKey)){var e=0,i=0,o=0,r=0,a=0;switch(t.keyCode){case 61:case 107:case 171:case 187:e=1;break;case 189:case 109:case 173:e=-1;break;case 37:t.shiftKey?i=-1:(t.preventDefault(),r=-1);break;case 39:t.shiftKey?i=1:(t.preventDefault(),r=1);break;case 38:t.shiftKey?o=1:(t.preventDefault(),a=-1);break;case 40:t.shiftKey?o=-1:(a=1,t.preventDefault());break;default:return}var n=this._map,s=n.getZoom(),l={duration:300,delayEndEvents:500,easing:So,zoom:e?Math.round(s)+e*(t.shiftKey?2:1):s,bearing:n.getBearing()+15*i,pitch:n.getPitch()+10*o,offset:[100*-r,100*-a],center:n.getCenter()};n.easeTo(l,{originalEvent:t});}};var Po=function(e){this._map=e,t.bindAll(["_onDblClick","_onZoomEnd"],this);};Po.prototype.isEnabled=function(){return !!this._enabled},Po.prototype.isActive=function(){return !!this._active},Po.prototype.enable=function(){this.isEnabled()||(this._enabled=!0);},Po.prototype.disable=function(){this.isEnabled()&&(this._enabled=!1);},Po.prototype.onTouchStart=function(t){var e=this;if(this.isEnabled()&&!(t.points.length>1))if(this._tapped){var i=t.points[0],o=this._tappedPoint;if(o&&o.dist(i)<=30){t.originalEvent.preventDefault();var r=function(){e._tapped&&e._zoom(t),e._map.off("touchcancel",a),e._resetTapped();},a=function(){e._map.off("touchend",r),e._resetTapped();};this._map.once("touchend",r),this._map.once("touchcancel",a);}else this._resetTapped();}else this._tappedPoint=t.points[0],this._tapped=setTimeout((function(){e._tapped=null,e._tappedPoint=null;}),300);},Po.prototype._resetTapped=function(){clearTimeout(this._tapped),this._tapped=null,this._tappedPoint=null;},Po.prototype.onDblClick=function(t){this.isEnabled()&&(t.originalEvent.preventDefault(),this._zoom(t));},Po.prototype._zoom=function(t){this._active=!0,this._map.on("zoomend",this._onZoomEnd),this._map.zoomTo(this._map.getZoom()+(t.originalEvent.shiftKey?-1:1),{around:t.lngLat},t);},Po.prototype._onZoomEnd=function(){this._active=!1,this._map.off("zoomend",this._onZoomEnd);};var zo=t.bezier(0,0,.15,1),Lo=function(e){this._map=e,this._el=e.getCanvasContainer(),t.bindAll(["_onMove","_onEnd","_onTouchFrame"],this);};Lo.prototype.isEnabled=function(){return !!this._enabled},Lo.prototype.enable=function(t){this.isEnabled()||(this._el.classList.add("mapboxgl-touch-zoom-rotate"),this._enabled=!0,this._aroundCenter=!!t&&"center"===t.around);},Lo.prototype.disable=function(){this.isEnabled()&&(this._el.classList.remove("mapboxgl-touch-zoom-rotate"),this._enabled=!1);},Lo.prototype.disableRotation=function(){this._rotationDisabled=!0;},Lo.prototype.enableRotation=function(){this._rotationDisabled=!1;},Lo.prototype.isActive=function(){return this.isEnabled()&&!!this._gestureIntent},Lo.prototype.onStart=function(e){if(this.isEnabled()&&2===e.touches.length){var o=i.mousePos(this._el,e.touches[0]),r=i.mousePos(this._el,e.touches[1]),a=o.add(r).div(2);this._startVec=o.sub(r),this._startAround=this._map.transform.pointLocation(a),this._gestureIntent=void 0,this._inertia=[],i.addEventListener(t.window.document,"touchmove",this._onMove,{passive:!1}),i.addEventListener(t.window.document,"touchend",this._onEnd);}},Lo.prototype._getTouchEventData=function(t){var e=i.mousePos(this._el,t.touches[0]),o=i.mousePos(this._el,t.touches[1]),r=e.sub(o);return {vec:r,center:e.add(o).div(2),scale:r.mag()/this._startVec.mag(),bearing:this._rotationDisabled?0:180*r.angleWith(this._startVec)/Math.PI}},Lo.prototype._onMove=function(e){if(2===e.touches.length){var i=this._getTouchEventData(e),o=i.vec,r=i.scale,a=i.bearing;if(!this._gestureIntent){var n=this._rotationDisabled&&1!==r||Math.abs(1-r)>.15;Math.abs(a)>10?this._gestureIntent="rotate":n&&(this._gestureIntent="zoom"),this._gestureIntent&&(this._map.fire(new t.Event(this._gestureIntent+"start",{originalEvent:e})),this._map.fire(new t.Event("movestart",{originalEvent:e})),this._startVec=o);}this._lastTouchEvent=e,this._frameId||(this._frameId=this._map._requestRenderFrame(this._onTouchFrame)),e.preventDefault();}},Lo.prototype._onTouchFrame=function(){this._frameId=null;var e=this._gestureIntent;if(e){var i=this._map.transform;this._startScale||(this._startScale=i.scale,this._startBearing=i.bearing);var o=this._getTouchEventData(this._lastTouchEvent),r=o.center,a=o.bearing,n=o.scale,s=i.pointLocation(r),l=i.locationPoint(s);"rotate"===e&&(i.bearing=this._startBearing+a),i.zoom=i.scaleZoom(this._startScale*n),i.setLocationAtPoint(this._startAround,l),this._map.fire(new t.Event(e,{originalEvent:this._lastTouchEvent})),this._map.fire(new t.Event("move",{originalEvent:this._lastTouchEvent})),this._drainInertiaBuffer(),this._inertia.push([t.browser.now(),n,r]);}},Lo.prototype._onEnd=function(e){i.removeEventListener(t.window.document,"touchmove",this._onMove,{passive:!1}),i.removeEventListener(t.window.document,"touchend",this._onEnd);var o=this._gestureIntent,r=this._startScale;if(this._frameId&&(this._map._cancelRenderFrame(this._frameId),this._frameId=null),delete this._gestureIntent,delete this._startScale,delete this._startBearing,delete this._lastTouchEvent,o){this._map.fire(new t.Event(o+"end",{originalEvent:e})),this._drainInertiaBuffer();var a=this._inertia,n=this._map;if(a.length<2)n.snapToNorth({},{originalEvent:e});else{var s=a[a.length-1],l=a[0],c=n.transform.scaleZoom(r*s[1]),u=n.transform.scaleZoom(r*l[1]),h=c-u,p=(s[0]-l[0])/1e3,d=s[2];if(0!==p&&c!==u){var _=.15*h/p;Math.abs(_)>2.5&&(_=_>0?2.5:-2.5);var f=1e3*Math.abs(_/(12*.15)),m=c+_*f/2e3;m<0&&(m=0),n.easeTo({zoom:m,duration:f,easing:zo,around:this._aroundCenter?n.getCenter():n.unproject(d),noMoveStart:!0},{originalEvent:e});}else n.snapToNorth({},{originalEvent:e});}}},Lo.prototype._drainInertiaBuffer=function(){for(var e=this._inertia,i=t.browser.now();e.length>2&&i-e[0][0]>160;)e.shift();};var Do={scrollZoom:xo,boxZoom:bo,dragRotate:Eo,dragPan:Io,keyboard:Co,doubleClickZoom:Po,touchZoomRotate:Lo};var Mo=function(e){function i(i,o){e.call(this),this._moving=!1,this._zooming=!1,this.transform=i,this._bearingSnap=o.bearingSnap,t.bindAll(["_renderFrameCallback"],this);}return e&&(i.__proto__=e),i.prototype=Object.create(e&&e.prototype),i.prototype.constructor=i,i.prototype.getCenter=function(){return new t.LngLat(this.transform.center.lng,this.transform.center.lat)},i.prototype.setCenter=function(t,e){return this.jumpTo({center:t},e)},i.prototype.panBy=function(e,i,o){return e=t.Point.convert(e).mult(-1),this.panTo(this.transform.center,t.extend({offset:e},i),o)},i.prototype.panTo=function(e,i,o){return this.easeTo(t.extend({center:e},i),o)},i.prototype.getZoom=function(){return this.transform.zoom},i.prototype.setZoom=function(t,e){return this.jumpTo({zoom:t},e),this},i.prototype.zoomTo=function(e,i,o){return this.easeTo(t.extend({zoom:e},i),o)},i.prototype.zoomIn=function(t,e){return this.zoomTo(this.getZoom()+1,t,e),this},i.prototype.zoomOut=function(t,e){return this.zoomTo(this.getZoom()-1,t,e),this},i.prototype.getBearing=function(){return this.transform.bearing},i.prototype.setBearing=function(t,e){return this.jumpTo({bearing:t},e),this},i.prototype.rotateTo=function(e,i,o){return this.easeTo(t.extend({bearing:e},i),o)},i.prototype.resetNorth=function(e,i){return this.rotateTo(0,t.extend({duration:1e3},e),i),this},i.prototype.resetNorthPitch=function(e,i){return this.easeTo(t.extend({bearing:0,pitch:0,duration:1e3},e),i),this},i.prototype.snapToNorth=function(t,e){return Math.abs(this.getBearing())e?1:0})),["bottom","left","right","top"])){var n=this.transform,s=n.project(t.LngLat.convert(e)),l=n.project(t.LngLat.convert(i)),c=s.rotate(-o*Math.PI/180),u=l.rotate(-o*Math.PI/180),h=new t.Point(Math.max(c.x,u.x),Math.max(c.y,u.y)),p=new t.Point(Math.min(c.x,u.x),Math.min(c.y,u.y)),d=h.sub(p),_=(n.width-r.padding.left-r.padding.right)/d.x,f=(n.height-r.padding.top-r.padding.bottom)/d.y;if(!(f<0||_<0)){var m=Math.min(n.scaleZoom(n.scale*Math.min(_,f)),r.maxZoom),g=t.Point.convert(r.offset),v=(r.padding.left-r.padding.right)/2,y=(r.padding.top-r.padding.bottom)/2,x=new t.Point(g.x+v,g.y+y).mult(n.scale/n.zoomScale(m));return {center:n.unproject(s.add(l).div(2).sub(x)),zoom:m,bearing:o}}t.warnOnce("Map cannot fit within canvas with the given bounds, padding, and/or offset.");}else t.warnOnce("options.padding must be a positive number, or an Object with keys 'bottom', 'left', 'right', 'top'");},i.prototype.fitBounds=function(t,e,i){return this._fitInternal(this.cameraForBounds(t,e),e,i)},i.prototype.fitScreenCoordinates=function(e,i,o,r,a){return this._fitInternal(this._cameraForBoxAndBearing(this.transform.pointLocation(t.Point.convert(e)),this.transform.pointLocation(t.Point.convert(i)),o,r),r,a)},i.prototype._fitInternal=function(e,i,o){return e?(i=t.extend(e,i)).linear?this.easeTo(i,o):this.flyTo(i,o):this},i.prototype.jumpTo=function(e,i){this.stop();var o=this.transform,r=!1,a=!1,n=!1;return "zoom"in e&&o.zoom!==+e.zoom&&(r=!0,o.zoom=+e.zoom),void 0!==e.center&&(o.center=t.LngLat.convert(e.center)),"bearing"in e&&o.bearing!==+e.bearing&&(a=!0,o.bearing=+e.bearing),"pitch"in e&&o.pitch!==+e.pitch&&(n=!0,o.pitch=+e.pitch),this.fire(new t.Event("movestart",i)).fire(new t.Event("move",i)),r&&this.fire(new t.Event("zoomstart",i)).fire(new t.Event("zoom",i)).fire(new t.Event("zoomend",i)),a&&this.fire(new t.Event("rotatestart",i)).fire(new t.Event("rotate",i)).fire(new t.Event("rotateend",i)),n&&this.fire(new t.Event("pitchstart",i)).fire(new t.Event("pitch",i)).fire(new t.Event("pitchend",i)),this.fire(new t.Event("moveend",i))},i.prototype.easeTo=function(e,i){var o=this;this.stop(),(!1===(e=t.extend({offset:[0,0],duration:500,easing:t.ease},e)).animate||t.browser.prefersReducedMotion)&&(e.duration=0);var r=this.transform,a=this.getZoom(),n=this.getBearing(),s=this.getPitch(),l="zoom"in e?+e.zoom:a,c="bearing"in e?this._normalizeBearing(e.bearing,n):n,u="pitch"in e?+e.pitch:s,h=r.centerPoint.add(t.Point.convert(e.offset)),p=r.pointLocation(h),d=t.LngLat.convert(e.center||p);this._normalizeCenter(d);var _,f,m=r.project(p),g=r.project(d).sub(m),v=r.zoomScale(l-a);return e.around&&(_=t.LngLat.convert(e.around),f=r.locationPoint(_)),this._zooming=l!==a,this._rotating=n!==c,this._pitching=u!==s,this._prepareEase(i,e.noMoveStart),clearTimeout(this._easeEndTimeoutID),this._ease((function(e){if(o._zooming&&(r.zoom=t.number(a,l,e)),o._rotating&&(r.bearing=t.number(n,c,e)),o._pitching&&(r.pitch=t.number(s,u,e)),_)r.setLocationAtPoint(_,f);else{var p=r.zoomScale(r.zoom-a),d=l>a?Math.min(2,v):Math.max(.5,v),y=Math.pow(d,1-e),x=r.unproject(m.add(g.mult(e*y)).mult(p));r.setLocationAtPoint(r.renderWorldCopies?x.wrap():x,h);}o._fireMoveEvents(i);}),(function(){e.delayEndEvents?o._easeEndTimeoutID=setTimeout((function(){return o._afterEase(i)}),e.delayEndEvents):o._afterEase(i);}),e),this},i.prototype._prepareEase=function(e,i){this._moving=!0,i||this.fire(new t.Event("movestart",e)),this._zooming&&this.fire(new t.Event("zoomstart",e)),this._rotating&&this.fire(new t.Event("rotatestart",e)),this._pitching&&this.fire(new t.Event("pitchstart",e));},i.prototype._fireMoveEvents=function(e){this.fire(new t.Event("move",e)),this._zooming&&this.fire(new t.Event("zoom",e)),this._rotating&&this.fire(new t.Event("rotate",e)),this._pitching&&this.fire(new t.Event("pitch",e));},i.prototype._afterEase=function(e){var i=this._zooming,o=this._rotating,r=this._pitching;this._moving=!1,this._zooming=!1,this._rotating=!1,this._pitching=!1,i&&this.fire(new t.Event("zoomend",e)),o&&this.fire(new t.Event("rotateend",e)),r&&this.fire(new t.Event("pitchend",e)),this.fire(new t.Event("moveend",e));},i.prototype.flyTo=function(e,i){var o=this;if(t.browser.prefersReducedMotion){var r=t.pick(e,["center","zoom","bearing","pitch","around"]);return this.jumpTo(r,i)}this.stop(),e=t.extend({offset:[0,0],speed:1.2,curve:1.42,easing:t.ease},e);var a=this.transform,n=this.getZoom(),s=this.getBearing(),l=this.getPitch(),c="zoom"in e?t.clamp(+e.zoom,a.minZoom,a.maxZoom):n,u="bearing"in e?this._normalizeBearing(e.bearing,s):s,h="pitch"in e?+e.pitch:l,p=a.zoomScale(c-n),d=a.centerPoint.add(t.Point.convert(e.offset)),_=a.pointLocation(d),f=t.LngLat.convert(e.center||_);this._normalizeCenter(f);var m=a.project(_),g=a.project(f).sub(m),v=e.curve,y=Math.max(a.width,a.height),x=y/p,b=g.mag();if("minZoom"in e){var w=t.clamp(Math.min(e.minZoom,n,c),a.minZoom,a.maxZoom),E=y/a.zoomScale(w-n);v=Math.sqrt(E/b*2);}var T=v*v;function I(t){var e=(x*x-y*y+(t?-1:1)*T*T*b*b)/(2*(t?x:y)*T*b);return Math.log(Math.sqrt(e*e+1)-e)}function C(t){return (Math.exp(t)-Math.exp(-t))/2}function S(t){return (Math.exp(t)+Math.exp(-t))/2}var P=I(0),z=function(t){return S(P)/S(P+v*t)},L=function(t){return y*((S(P)*(C(e=P+v*t)/S(e))-C(P))/T)/b;var e;},D=(I(1)-P)/v;if(Math.abs(b)<1e-6||!isFinite(D)){if(Math.abs(y-x)<1e-6)return this.easeTo(e,i);var M=xe.maxDuration&&(e.duration=0),this._zooming=!0,this._rotating=s!==u,this._pitching=h!==l,this._prepareEase(i,!1),this._ease((function(e){var r=e*D,p=1/z(r);a.zoom=1===e?c:n+a.scaleZoom(p),o._rotating&&(a.bearing=t.number(s,u,e)),o._pitching&&(a.pitch=t.number(l,h,e));var _=1===e?f:a.unproject(m.add(g.mult(L(r))).mult(p));a.setLocationAtPoint(a.renderWorldCopies?_.wrap():_,d),o._fireMoveEvents(i);}),(function(){return o._afterEase(i)}),e),this},i.prototype.isEasing=function(){return !!this._easeFrameId},i.prototype.stop=function(){if(this._easeFrameId&&(this._cancelRenderFrame(this._easeFrameId),delete this._easeFrameId,delete this._onEaseFrame),this._onEaseEnd){var t=this._onEaseEnd;delete this._onEaseEnd,t.call(this);}return this},i.prototype._ease=function(e,i,o){!1===o.animate||0===o.duration?(e(1),i()):(this._easeStart=t.browser.now(),this._easeOptions=o,this._onEaseFrame=e,this._onEaseEnd=i,this._easeFrameId=this._requestRenderFrame(this._renderFrameCallback));},i.prototype._renderFrameCallback=function(){var e=Math.min((t.browser.now()-this._easeStart)/this._easeOptions.duration,1);this._onEaseFrame(this._easeOptions.easing(e)),e<1?this._easeFrameId=this._requestRenderFrame(this._renderFrameCallback):this.stop();},i.prototype._normalizeBearing=function(e,i){e=t.wrap(e,-180,180);var o=Math.abs(e-i);return Math.abs(e-360-i)180?-360:i<-180?360:0;}},i}(t.Evented),Ro=function(e){void 0===e&&(e={}),this.options=e,t.bindAll(["_updateEditLink","_updateData","_updateCompact"],this);};Ro.prototype.getDefaultPosition=function(){return "bottom-right"},Ro.prototype.onAdd=function(t){var e=this.options&&this.options.compact;return this._map=t,this._container=i.create("div","mapboxgl-ctrl mapboxgl-ctrl-attrib"),this._innerContainer=i.create("div","mapboxgl-ctrl-attrib-inner",this._container),e&&this._container.classList.add("mapboxgl-compact"),this._updateAttributions(),this._updateEditLink(),this._map.on("styledata",this._updateData),this._map.on("sourcedata",this._updateData),this._map.on("moveend",this._updateEditLink),void 0===e&&(this._map.on("resize",this._updateCompact),this._updateCompact()),this._container},Ro.prototype.onRemove=function(){i.remove(this._container),this._map.off("styledata",this._updateData),this._map.off("sourcedata",this._updateData),this._map.off("moveend",this._updateEditLink),this._map.off("resize",this._updateCompact),this._map=void 0;},Ro.prototype._updateEditLink=function(){var e=this._editLink;e||(e=this._editLink=this._container.querySelector(".mapbox-improve-map"));var i=[{key:"owner",value:this.styleOwner},{key:"id",value:this.styleId},{key:"access_token",value:this._map._requestManager._customAccessToken||t.config.ACCESS_TOKEN}];if(e){var o=i.reduce((function(t,e,o){return e.value&&(t+=e.key+"="+e.value+(o=0)return !1;return !0}))).join(" | ");n!==this._attribHTML&&(this._attribHTML=n,t.length?(this._innerContainer.innerHTML=n,this._container.classList.remove("mapboxgl-attrib-empty")):this._container.classList.add("mapboxgl-attrib-empty"),this._editLink=null);}},Ro.prototype._updateCompact=function(){this._map.getCanvasContainer().offsetWidth<=640?this._container.classList.add("mapboxgl-compact"):this._container.classList.remove("mapboxgl-compact");};var Ao=function(){t.bindAll(["_updateLogo"],this),t.bindAll(["_updateCompact"],this);};Ao.prototype.onAdd=function(t){this._map=t,this._container=i.create("div","mapboxgl-ctrl");var e=i.create("a","mapboxgl-ctrl-logo");return e.target="_blank",e.rel="noopener nofollow",e.href="https://www.mapbox.com/",e.setAttribute("aria-label","Mapbox logo"),e.setAttribute("rel","noopener nofollow"),this._container.appendChild(e),this._container.style.display="none",this._map.on("sourcedata",this._updateLogo),this._updateLogo(),this._map.on("resize",this._updateCompact),this._updateCompact(),this._container},Ao.prototype.onRemove=function(){i.remove(this._container),this._map.off("sourcedata",this._updateLogo),this._map.off("resize",this._updateCompact);},Ao.prototype.getDefaultPosition=function(){return "bottom-left"},Ao.prototype._updateLogo=function(t){t&&"metadata"!==t.sourceDataType||(this._container.style.display=this._logoRequired()?"block":"none");},Ao.prototype._logoRequired=function(){if(this._map.style){var t=this._map.style.sourceCaches;for(var e in t){if(t[e].getSource().mapbox_logo)return !0}return !1}},Ao.prototype._updateCompact=function(){var t=this._container.children;if(t.length){var e=t[0];this._map.getCanvasContainer().offsetWidth<250?e.classList.add("mapboxgl-compact"):e.classList.remove("mapboxgl-compact");}};var ko=function(){this._queue=[],this._id=0,this._cleared=!1,this._currentlyRunning=!1;};ko.prototype.add=function(t){var e=++this._id;return this._queue.push({callback:t,id:e,cancelled:!1}),e},ko.prototype.remove=function(t){for(var e=this._currentlyRunning,i=0,o=e?this._queue.concat(e):this._queue;ie.maxZoom)throw new Error("maxZoom must be greater than minZoom");var a=new _o(e.minZoom,e.maxZoom,e.renderWorldCopies);if(o.call(this,a,e),this._interactive=e.interactive,this._maxTileCacheSize=e.maxTileCacheSize,this._failIfMajorPerformanceCaveat=e.failIfMajorPerformanceCaveat,this._preserveDrawingBuffer=e.preserveDrawingBuffer,this._antialias=e.antialias,this._trackResize=e.trackResize,this._bearingSnap=e.bearingSnap,this._refreshExpiredTiles=e.refreshExpiredTiles,this._fadeDuration=e.fadeDuration,this._crossSourceCollisions=e.crossSourceCollisions,this._crossFadingFactor=1,this._collectResourceTiming=e.collectResourceTiming,this._renderTaskQueue=new ko,this._controls=[],this._mapId=t.uniqueId(),this._requestManager=new t.RequestManager(e.transformRequest,e.accessToken),"string"==typeof e.container){if(this._container=t.window.document.getElementById(e.container),!this._container)throw new Error("Container '"+e.container+"' not found.")}else{if(!(e.container instanceof Oo))throw new Error("Invalid type: 'container' must be a String or HTMLElement.");this._container=e.container;}if(e.maxBounds&&this.setMaxBounds(e.maxBounds),t.bindAll(["_onWindowOnline","_onWindowResize","_contextLost","_contextRestored"],this),this._setupContainer(),this._setupPainter(),void 0===this.painter)throw new Error("Failed to initialize WebGL.");this.on("move",(function(){return r._update(!1)})),this.on("moveend",(function(){return r._update(!1)})),this.on("zoom",(function(){return r._update(!0)})),void 0!==t.window&&(t.window.addEventListener("online",this._onWindowOnline,!1),t.window.addEventListener("resize",this._onWindowResize,!1)),function(t,e){var o=t.getCanvasContainer(),r=null,a=!1,n=null;for(var s in Do)t[s]=new Do[s](t,e),e.interactive&&e[s]&&t[s].enable(e[s]);i.addEventListener(o,"mouseout",(function(e){t.fire(new go("mouseout",t,e));})),i.addEventListener(o,"mousedown",(function(r){a=!0,n=i.mousePos(o,r);var s=new go("mousedown",t,r);if(t.fire(s),s.defaultPrevented)return;e.interactive&&!t.doubleClickZoom.isActive()&&t.stop();t.boxZoom.onMouseDown(r),t.boxZoom.isActive()||t.dragPan.isActive()||t.dragRotate.onMouseDown(r);t.boxZoom.isActive()||t.dragRotate.isActive()||t.dragPan.onMouseDown(r);})),i.addEventListener(o,"mouseup",(function(e){var i=t.dragRotate.isActive();r&&!i&&t.fire(new go("contextmenu",t,r));r=null,a=!1,t.fire(new go("mouseup",t,e));})),i.addEventListener(o,"mousemove",(function(e){if(t.dragPan.isActive())return;if(t.dragRotate.isActive())return;var i=e.target;for(;i&&i!==o;)i=i.parentNode;if(i!==o)return;t.fire(new go("mousemove",t,e));})),i.addEventListener(o,"mouseover",(function(e){var i=e.target;for(;i&&i!==o;)i=i.parentNode;if(i!==o)return;t.fire(new go("mouseover",t,e));})),i.addEventListener(o,"touchstart",(function(i){var o=new vo("touchstart",t,i);if(t.fire(o),o.defaultPrevented)return;e.interactive&&t.stop();t.boxZoom.isActive()||t.dragRotate.isActive()||t.dragPan.onTouchStart(i);t.touchZoomRotate.onStart(i),t.doubleClickZoom.onTouchStart(o);}),{passive:!1}),i.addEventListener(o,"touchmove",(function(e){t.fire(new vo("touchmove",t,e));}),{passive:!1}),i.addEventListener(o,"touchend",(function(e){t.fire(new vo("touchend",t,e));})),i.addEventListener(o,"touchcancel",(function(e){t.fire(new vo("touchcancel",t,e));})),i.addEventListener(o,"click",(function(r){var a=i.mousePos(o,r);(!n||a.equals(n)||a.dist(n)-1&&this._controls.splice(i,1),e.onRemove(this),this},r.prototype.resize=function(e){var i=this._containerDimensions(),o=i[0],r=i[1];return this._resizeCanvas(o,r),this.transform.resize(o,r),this.painter.resize(o,r),this.fire(new t.Event("movestart",e)).fire(new t.Event("move",e)).fire(new t.Event("resize",e)).fire(new t.Event("moveend",e)),this},r.prototype.getBounds=function(){return this.transform.getBounds()},r.prototype.getMaxBounds=function(){return this.transform.getMaxBounds()},r.prototype.setMaxBounds=function(e){return this.transform.setMaxBounds(t.LngLatBounds.convert(e)),this._update()},r.prototype.setMinZoom=function(t){if((t=null==t?0:t)>=0&&t<=this.transform.maxZoom)return this.transform.minZoom=t,this._update(),this.getZoom()=this.transform.minZoom)return this.transform.maxZoom=t,this._update(),this.getZoom()>t&&this.setZoom(t),this;throw new Error("maxZoom must be greater than the current minZoom")},r.prototype.getMaxZoom=function(){return this.transform.maxZoom},r.prototype.getRenderWorldCopies=function(){return this.transform.renderWorldCopies},r.prototype.setRenderWorldCopies=function(t){return this.transform.renderWorldCopies=t,this._update()},r.prototype.project=function(e){return this.transform.locationPoint(t.LngLat.convert(e))},r.prototype.unproject=function(e){return this.transform.pointLocation(t.Point.convert(e))},r.prototype.isMoving=function(){return this._moving||this.dragPan.isActive()||this.dragRotate.isActive()||this.scrollZoom.isActive()},r.prototype.isZooming=function(){return this._zooming||this.scrollZoom.isZooming()},r.prototype.isRotating=function(){return this._rotating||this.dragRotate.isActive()},r.prototype.on=function(t,e,i){var r=this;if(void 0===i)return o.prototype.on.call(this,t,e);var a=function(){var o;if("mouseenter"===t||"mouseover"===t){var a=!1;return {layer:e,listener:i,delegates:{mousemove:function(o){var n=r.getLayer(e)?r.queryRenderedFeatures(o.point,{layers:[e]}):[];n.length?a||(a=!0,i.call(r,new go(t,r,o.originalEvent,{features:n}))):a=!1;},mouseout:function(){a=!1;}}}}if("mouseleave"===t||"mouseout"===t){var n=!1;return {layer:e,listener:i,delegates:{mousemove:function(o){(r.getLayer(e)?r.queryRenderedFeatures(o.point,{layers:[e]}):[]).length?n=!0:n&&(n=!1,i.call(r,new go(t,r,o.originalEvent)));},mouseout:function(e){n&&(n=!1,i.call(r,new go(t,r,e.originalEvent)));}}}}return {layer:e,listener:i,delegates:(o={},o[t]=function(t){var o=r.getLayer(e)?r.queryRenderedFeatures(t.point,{layers:[e]}):[];o.length&&(t.features=o,i.call(r,t),delete t.features);},o)}}();for(var n in this._delegatedListeners=this._delegatedListeners||{},this._delegatedListeners[t]=this._delegatedListeners[t]||[],this._delegatedListeners[t].push(a),a.delegates)this.on(n,a.delegates[n]);return this},r.prototype.off=function(t,e,i){if(void 0===i)return o.prototype.off.call(this,t,e);if(this._delegatedListeners&&this._delegatedListeners[t])for(var r=this._delegatedListeners[t],a=0;a180;){var s=o.locationPoint(e);if(s.x>=0&&s.y>=0&&s.x<=o.width&&s.y<=o.height)break;e.lng>o.center.lng?e.lng-=360:e.lng+=360;}return e}Vo.prototype._updateZoomButtons=function(){var t=this._map.getZoom();t===this._map.getMaxZoom()?this._zoomInButton.classList.add("mapboxgl-ctrl-icon-disabled"):this._zoomInButton.classList.remove("mapboxgl-ctrl-icon-disabled"),t===this._map.getMinZoom()?this._zoomOutButton.classList.add("mapboxgl-ctrl-icon-disabled"):this._zoomOutButton.classList.remove("mapboxgl-ctrl-icon-disabled");},Vo.prototype._rotateCompassArrow=function(){var t=this.options.visualizePitch?"scale("+1/Math.pow(Math.cos(this._map.transform.pitch*(Math.PI/180)),.5)+") rotateX("+this._map.transform.pitch+"deg) rotateZ("+this._map.transform.angle*(180/Math.PI)+"deg)":"rotate("+this._map.transform.angle*(180/Math.PI)+"deg)";this._compassArrow.style.transform=t;},Vo.prototype.onAdd=function(t){return this._map=t,this.options.showZoom&&(this._map.on("zoom",this._updateZoomButtons),this._updateZoomButtons()),this.options.showCompass&&(this.options.visualizePitch&&this._map.on("pitch",this._rotateCompassArrow),this._map.on("rotate",this._rotateCompassArrow),this._rotateCompassArrow(),this._handler=new Eo(t,{button:"left",element:this._compass}),i.addEventListener(this._compass,"mousedown",this._handler.onMouseDown),i.addEventListener(this._compass,"touchstart",this._handler.onMouseDown,{passive:!1}),this._handler.enable()),this._container},Vo.prototype.onRemove=function(){i.remove(this._container),this.options.showZoom&&this._map.off("zoom",this._updateZoomButtons),this.options.showCompass&&(this.options.visualizePitch&&this._map.off("pitch",this._rotateCompassArrow),this._map.off("rotate",this._rotateCompassArrow),i.removeEventListener(this._compass,"mousedown",this._handler.onMouseDown),i.removeEventListener(this._compass,"touchstart",this._handler.onMouseDown,{passive:!1}),this._handler.disable(),delete this._handler),delete this._map;},Vo.prototype._createButton=function(t,e,o){var r=i.create("button",t,this._container);return r.type="button",r.title=e,r.setAttribute("aria-label",e),r.addEventListener("click",o),r};var jo={center:"translate(-50%,-50%)",top:"translate(-50%,0)","top-left":"translate(0,0)","top-right":"translate(-100%,0)",bottom:"translate(-50%,-100%)","bottom-left":"translate(0,-100%)","bottom-right":"translate(-100%,-100%)",left:"translate(0,-50%)",right:"translate(-100%,-50%)"};function Go(t,e,i){var o=t.classList;for(var r in jo)o.remove("mapboxgl-"+i+"-anchor-"+r);o.add("mapboxgl-"+i+"-anchor-"+e);}var Wo,Xo=function(e){function o(o,r){if(e.call(this),(o instanceof t.window.HTMLElement||r)&&(o=t.extend({element:o},r)),t.bindAll(["_update","_onMove","_onUp","_addDragHandler","_onMapClick"],this),this._anchor=o&&o.anchor||"center",this._color=o&&o.color||"#3FB1CE",this._draggable=o&&o.draggable||!1,this._state="inactive",o&&o.element)this._element=o.element,this._offset=t.Point.convert(o&&o.offset||[0,0]);else{this._defaultMarker=!0,this._element=i.create("div");var a=i.createNS("http://www.w3.org/2000/svg","svg");a.setAttributeNS(null,"display","block"),a.setAttributeNS(null,"height","41px"),a.setAttributeNS(null,"width","27px"),a.setAttributeNS(null,"viewBox","0 0 27 41");var n=i.createNS("http://www.w3.org/2000/svg","g");n.setAttributeNS(null,"stroke","none"),n.setAttributeNS(null,"stroke-width","1"),n.setAttributeNS(null,"fill","none"),n.setAttributeNS(null,"fill-rule","evenodd");var s=i.createNS("http://www.w3.org/2000/svg","g");s.setAttributeNS(null,"fill-rule","nonzero");var l=i.createNS("http://www.w3.org/2000/svg","g");l.setAttributeNS(null,"transform","translate(3.0, 29.0)"),l.setAttributeNS(null,"fill","#000000");for(var c=0,u=[{rx:"10.5",ry:"5.25002273"},{rx:"10.5",ry:"5.25002273"},{rx:"9.5",ry:"4.77275007"},{rx:"8.5",ry:"4.29549936"},{rx:"7.5",ry:"3.81822308"},{rx:"6.5",ry:"3.34094679"},{rx:"5.5",ry:"2.86367051"},{rx:"4.5",ry:"2.38636864"}];c5280)$o(e,c,p/5280,"mi");else $o(e,c,p,"ft");}else if(i&&"nautical"===i.unit){$o(e,c,h/1852,"nm");}else $o(e,c,h,"m");}function $o(t,e,i,o){var r,a,n,s=(r=i,a=Math.pow(10,(""+Math.floor(r)).length-1),n=(n=r/a)>=10?10:n>=5?5:n>=3?3:n>=2?2:n>=1?1:function(t){var e=Math.pow(10,Math.ceil(-Math.log(t)/Math.LN10));return Math.round(t*e)/e}(n),a*n),l=s/i;"m"===o&&s>=1e3&&(s/=1e3,o="km"),t.style.width=e*l+"px",t.innerHTML=s+o;}Yo.prototype.getDefaultPosition=function(){return "bottom-left"},Yo.prototype._onMove=function(){Qo(this._map,this._container,this.options);},Yo.prototype.onAdd=function(t){return this._map=t,this._container=i.create("div","mapboxgl-ctrl mapboxgl-ctrl-scale",t.getContainer()),this._map.on("move",this._onMove),this._onMove(),this._container},Yo.prototype.onRemove=function(){i.remove(this._container),this._map.off("move",this._onMove),this._map=void 0;},Yo.prototype.setUnit=function(t){this.options.unit=t,Qo(this._map,this._container,this.options);};var tr=function(e){this._fullscreen=!1,e&&e.container&&(e.container instanceof t.window.HTMLElement?this._container=e.container:t.warnOnce("Full screen control 'container' must be a DOM element.")),t.bindAll(["_onClickFullscreen","_changeIcon"],this),"onfullscreenchange"in t.window.document?this._fullscreenchange="fullscreenchange":"onmozfullscreenchange"in t.window.document?this._fullscreenchange="mozfullscreenchange":"onwebkitfullscreenchange"in t.window.document?this._fullscreenchange="webkitfullscreenchange":"onmsfullscreenchange"in t.window.document&&(this._fullscreenchange="MSFullscreenChange"),this._className="mapboxgl-ctrl";};tr.prototype.onAdd=function(e){return this._map=e,this._container||(this._container=this._map.getContainer()),this._controlContainer=i.create("div",this._className+" mapboxgl-ctrl-group"),this._checkFullscreenSupport()?this._setupUI():(this._controlContainer.style.display="none",t.warnOnce("This device does not support fullscreen mode.")),this._controlContainer},tr.prototype.onRemove=function(){i.remove(this._controlContainer),this._map=null,t.window.document.removeEventListener(this._fullscreenchange,this._changeIcon);},tr.prototype._checkFullscreenSupport=function(){return !!(t.window.document.fullscreenEnabled||t.window.document.mozFullScreenEnabled||t.window.document.msFullscreenEnabled||t.window.document.webkitFullscreenEnabled)},tr.prototype._setupUI=function(){(this._fullscreenButton=i.create("button",this._className+"-icon "+this._className+"-fullscreen",this._controlContainer)).type="button",this._updateTitle(),this._fullscreenButton.addEventListener("click",this._onClickFullscreen),t.window.document.addEventListener(this._fullscreenchange,this._changeIcon);},tr.prototype._updateTitle=function(){var t=this._isFullscreen()?"Exit fullscreen":"Enter fullscreen";this._fullscreenButton.setAttribute("aria-label",t),this._fullscreenButton.title=t;},tr.prototype._isFullscreen=function(){return this._fullscreen},tr.prototype._changeIcon=function(){(t.window.document.fullscreenElement||t.window.document.mozFullScreenElement||t.window.document.webkitFullscreenElement||t.window.document.msFullscreenElement)===this._container!==this._fullscreen&&(this._fullscreen=!this._fullscreen,this._fullscreenButton.classList.toggle(this._className+"-shrink"),this._fullscreenButton.classList.toggle(this._className+"-fullscreen"),this._updateTitle());},tr.prototype._onClickFullscreen=function(){this._isFullscreen()?t.window.document.exitFullscreen?t.window.document.exitFullscreen():t.window.document.mozCancelFullScreen?t.window.document.mozCancelFullScreen():t.window.document.msExitFullscreen?t.window.document.msExitFullscreen():t.window.document.webkitCancelFullScreen&&t.window.document.webkitCancelFullScreen():this._container.requestFullscreen?this._container.requestFullscreen():this._container.mozRequestFullScreen?this._container.mozRequestFullScreen():this._container.msRequestFullscreen?this._container.msRequestFullscreen():this._container.webkitRequestFullscreen&&this._container.webkitRequestFullscreen();};var er={closeButton:!0,closeOnClick:!0,className:"",maxWidth:"240px"},ir=function(e){function o(i){e.call(this),this.options=t.extend(Object.create(er),i),t.bindAll(["_update","_onClickClose","remove"],this);}return e&&(o.__proto__=e),o.prototype=Object.create(e&&e.prototype),o.prototype.constructor=o,o.prototype.addTo=function(e){var i=this;return this._map=e,this.options.closeOnClick&&this._map.on("click",this._onClickClose),this._map.on("remove",this.remove),this._update(),this._trackPointer?(this._map.on("mousemove",(function(t){i._update(t.point);})),this._map.on("mouseup",(function(t){i._update(t.point);})),this._container&&this._container.classList.add("mapboxgl-popup-track-pointer"),this._map._canvasContainer.classList.add("mapboxgl-track-pointer")):this._map.on("move",this._update),this.fire(new t.Event("open")),this},o.prototype.isOpen=function(){return !!this._map},o.prototype.remove=function(){return this._content&&i.remove(this._content),this._container&&(i.remove(this._container),delete this._container),this._map&&(this._map.off("move",this._update),this._map.off("click",this._onClickClose),this._map.off("remove",this.remove),this._map.off("mousemove"),delete this._map),this.fire(new t.Event("close")),this},o.prototype.getLngLat=function(){return this._lngLat},o.prototype.setLngLat=function(e){return this._lngLat=t.LngLat.convert(e),this._pos=null,this._trackPointer=!1,this._update(),this._map&&(this._map.on("move",this._update),this._map.off("mousemove"),this._container&&this._container.classList.remove("mapboxgl-popup-track-pointer"),this._map._canvasContainer.classList.remove("mapboxgl-track-pointer")),this},o.prototype.trackPointer=function(){var t=this;return this._trackPointer=!0,this._pos=null,this._update(),this._map&&(this._map.off("move",this._update),this._map.on("mousemove",(function(e){t._update(e.point);})),this._map.on("drag",(function(e){t._update(e.point);})),this._container&&this._container.classList.add("mapboxgl-popup-track-pointer"),this._map._canvasContainer.classList.add("mapboxgl-track-pointer")),this},o.prototype.getElement=function(){return this._container},o.prototype.setText=function(e){return this.setDOMContent(t.window.document.createTextNode(e))},o.prototype.setHTML=function(e){var i,o=t.window.document.createDocumentFragment(),r=t.window.document.createElement("body");for(r.innerHTML=e;i=r.firstChild;)o.appendChild(i);return this.setDOMContent(o)},o.prototype.getMaxWidth=function(){return this._container.style.maxWidth},o.prototype.setMaxWidth=function(t){return this.options.maxWidth=t,this._update(),this},o.prototype.setDOMContent=function(t){return this._createContent(),this._content.appendChild(t),this._update(),this},o.prototype._createContent=function(){this._content&&i.remove(this._content),this._content=i.create("div","mapboxgl-popup-content",this._container),this.options.closeButton&&(this._closeButton=i.create("button","mapboxgl-popup-close-button",this._content),this._closeButton.type="button",this._closeButton.setAttribute("aria-label","Close popup"),this._closeButton.innerHTML="×",this._closeButton.addEventListener("click",this._onClickClose));},o.prototype._update=function(e){var o=this,r=this._lngLat||this._trackPointer;if(this._map&&r&&this._content&&(this._container||(this._container=i.create("div","mapboxgl-popup",this._map.getContainer()),this._tip=i.create("div","mapboxgl-popup-tip",this._container),this._container.appendChild(this._content),this.options.className&&this.options.className.split(" ").forEach((function(t){return o._container.classList.add(t)})),this._trackPointer&&this._container.classList.add("mapboxgl-popup-track-pointer")),this.options.maxWidth&&this._container.style.maxWidth!==this.options.maxWidth&&(this._container.style.maxWidth=this.options.maxWidth),this._map.transform.renderWorldCopies&&!this._trackPointer&&(this._lngLat=qo(this._lngLat,this._pos,this._map.transform)),!this._trackPointer||e)){var a=this._pos=this._trackPointer&&e?e:this._map.project(this._lngLat),n=this.options.anchor,s=function e(i){if(i){if("number"==typeof i){var o=Math.round(Math.sqrt(.5*Math.pow(i,2)));return {center:new t.Point(0,0),top:new t.Point(0,i),"top-left":new t.Point(o,o),"top-right":new t.Point(-o,o),bottom:new t.Point(0,-i),"bottom-left":new t.Point(o,-o),"bottom-right":new t.Point(-o,-o),left:new t.Point(i,0),right:new t.Point(-i,0)}}if(i instanceof t.Point||Array.isArray(i)){var r=t.Point.convert(i);return {center:r,top:r,"top-left":r,"top-right":r,bottom:r,"bottom-left":r,"bottom-right":r,left:r,right:r}}return {center:t.Point.convert(i.center||[0,0]),top:t.Point.convert(i.top||[0,0]),"top-left":t.Point.convert(i["top-left"]||[0,0]),"top-right":t.Point.convert(i["top-right"]||[0,0]),bottom:t.Point.convert(i.bottom||[0,0]),"bottom-left":t.Point.convert(i["bottom-left"]||[0,0]),"bottom-right":t.Point.convert(i["bottom-right"]||[0,0]),left:t.Point.convert(i.left||[0,0]),right:t.Point.convert(i.right||[0,0])}}return e(new t.Point(0,0))}(this.options.offset);if(!n){var l,c=this._container.offsetWidth,u=this._container.offsetHeight;l=a.y+s.bottom.ythis._map.transform.height-u?["bottom"]:[],a.xthis._map.transform.width-c/2&&l.push("right"),n=0===l.length?"bottom":l.join("-");}var h=a.add(s[n]).round();i.setTransform(this._container,jo[n]+" translate("+h.x+"px,"+h.y+"px)"),Go(this._container,n,"popup");}},o.prototype._onClickClose=function(){this.remove();},o}(t.Evented);var or={version:t.version,supported:e,setRTLTextPlugin:t.setRTLTextPlugin,Map:Uo,NavigationControl:Vo,GeolocateControl:Ko,AttributionControl:Ro,ScaleControl:Yo,FullscreenControl:tr,Popup:ir,Marker:Xo,Style:Fe,LngLat:t.LngLat,LngLatBounds:t.LngLatBounds,Point:t.Point,MercatorCoordinate:t.MercatorCoordinate,Evented:t.Evented,config:t.config,get accessToken(){return t.config.ACCESS_TOKEN},set accessToken(e){t.config.ACCESS_TOKEN=e;},get baseApiUrl(){return t.config.API_URL},set baseApiUrl(e){t.config.API_URL=e;},get workerCount(){return At.workerCount},set workerCount(t){At.workerCount=t;},get maxParallelImageRequests(){return t.config.MAX_PARALLEL_IMAGE_REQUESTS},set maxParallelImageRequests(e){t.config.MAX_PARALLEL_IMAGE_REQUESTS=e;},clearStorage:function(e){t.clearTileCache(e);},workerUrl:""};return or})); + +// + +return mapboxgl; + +})); +//# sourceMappingURL=mapbox-gl.js.map diff --git a/public/mapbox/sprite.json b/public/mapbox/sprite.json new file mode 100644 index 0000000..0fd4013 --- /dev/null +++ b/public/mapbox/sprite.json @@ -0,0 +1,290 @@ +{ + "水位站": { + "width": 32, + "height": 32, + "x": 0, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "水位站-离线": { + "width": 32, + "height": 32, + "x": 0, + "y": 32, + "pixelRatio": 1, + "visible": true + }, + "水位站-设防": { + "width": 32, + "height": 32, + "x": 0, + "y": 64, + "pixelRatio": 1, + "visible": true + }, + "水位站-警戒": { + "width": 32, + "height": 32, + "x": 0, + "y": 96, + "pixelRatio": 1, + "visible": true + }, + "水位站-保证": { + "width": 32, + "height": 32, + "x": 0, + "y": 128, + "pixelRatio": 1, + "visible": true + }, + "雨量站": { + "width": 32, + "height": 32, + "x": 32, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "水库": { + "width": 32, + "height": 32, + "x": 32, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "水库-离线": { + "width": 32, + "height": 32, + "x": 32, + "y": 32, + "pixelRatio": 1, + "visible": true + }, + "水库-超汛限": { + "width": 32, + "height": 32, + "x": 32, + "y": 64, + "pixelRatio": 1, + "visible": true + }, + "bridge": { + "width": 32, + "height": 32, + "x": 64, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "culvert": { + "width": 32, + "height": 32, + "x": 96, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "daminfo": { + "width": 32, + "height": 32, + "x": 128, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "sluice": { + "width": 32, + "height": 32, + "x": 160, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "wbrinfo": { + "width": 32, + "height": 32, + "x": 192, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "swstinfo": { + "width": 32, + "height": 32, + "x": 224, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "skinfo": { + "width": 32, + "height": 32, + "x": 256, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "srstinfo": { + "width": 32, + "height": 32, + "x": 288, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "stinfo": { + "width": 32, + "height": 32, + "x": 320, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "placement": { + "width": 32, + "height": 32, + "x": 96, + "y": 160, + "pixelRatio": 1, + "visible": true + }, + "bsnssinfo": { + "width": 32, + "height": 32, + "x": 128, + "y": 160, + "pixelRatio": 1, + "visible": true + }, + "flrvvlg": { + "width": 32, + "height": 32, + "x": 160, + "y": 160, + "pixelRatio": 1, + "visible": true + }, + "Marker": { + "width": 32, + "height": 32, + "x": 64, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "adcd4": { + "width": 32, + "height": 32, + "x": 96, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "adcd5": { + "width": 32, + "height": 32, + "x": 128, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "adcd6": { + "width": 32, + "height": 32, + "x": 160, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "adcd7": { + "width": 32, + "height": 32, + "x": 192, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "防灾对象": { + "width": 32, + "height": 32, + "x": 64, + "y": 64, + "pixelRatio": 1, + "visible": true + }, + "地形": { + "width": 32, + "height": 32, + "x": 0, + "y": 224, + "pixelRatio": 1, + "visible": true + }, + "河流": { + "width": 32, + "height": 32, + "x": 32, + "y": 224, + "pixelRatio": 1, + "visible": true + }, + "道路": { + "width": 32, + "height": 32, + "x": 64, + "y": 224, + "pixelRatio": 1, + "visible": true + }, + "图像站": { + "width": 32, + "height": 32, + "x": 96, + "y": 32, + "pixelRatio": 1, + "visible": true + }, + "泵站": { + "width": 32, + "height": 32, + "x": 352, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "水电站": { + "width": 32, + "height": 32, + "x": 384, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "病险水库": { + "width": 32, + "height": 32, + "x": 0, + "y": 256, + "pixelRatio": 1, + "visible": true + }, + "病险水库-超汛限": { + "width": 32, + "height": 32, + "x": 32, + "y": 256, + "pixelRatio": 1, + "visible": true + }, + "病险水库-离线": { + "width": 32, + "height": 32, + "x": 64, + "y": 256, + "pixelRatio": 1, + "visible": true + } +} \ No newline at end of file diff --git a/public/mapbox/sprite.png b/public/mapbox/sprite.png new file mode 100644 index 0000000..570a999 Binary files /dev/null and b/public/mapbox/sprite.png differ diff --git a/public/mapbox/sprite@2x.json b/public/mapbox/sprite@2x.json new file mode 100644 index 0000000..0fd4013 --- /dev/null +++ b/public/mapbox/sprite@2x.json @@ -0,0 +1,290 @@ +{ + "水位站": { + "width": 32, + "height": 32, + "x": 0, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "水位站-离线": { + "width": 32, + "height": 32, + "x": 0, + "y": 32, + "pixelRatio": 1, + "visible": true + }, + "水位站-设防": { + "width": 32, + "height": 32, + "x": 0, + "y": 64, + "pixelRatio": 1, + "visible": true + }, + "水位站-警戒": { + "width": 32, + "height": 32, + "x": 0, + "y": 96, + "pixelRatio": 1, + "visible": true + }, + "水位站-保证": { + "width": 32, + "height": 32, + "x": 0, + "y": 128, + "pixelRatio": 1, + "visible": true + }, + "雨量站": { + "width": 32, + "height": 32, + "x": 32, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "水库": { + "width": 32, + "height": 32, + "x": 32, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "水库-离线": { + "width": 32, + "height": 32, + "x": 32, + "y": 32, + "pixelRatio": 1, + "visible": true + }, + "水库-超汛限": { + "width": 32, + "height": 32, + "x": 32, + "y": 64, + "pixelRatio": 1, + "visible": true + }, + "bridge": { + "width": 32, + "height": 32, + "x": 64, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "culvert": { + "width": 32, + "height": 32, + "x": 96, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "daminfo": { + "width": 32, + "height": 32, + "x": 128, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "sluice": { + "width": 32, + "height": 32, + "x": 160, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "wbrinfo": { + "width": 32, + "height": 32, + "x": 192, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "swstinfo": { + "width": 32, + "height": 32, + "x": 224, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "skinfo": { + "width": 32, + "height": 32, + "x": 256, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "srstinfo": { + "width": 32, + "height": 32, + "x": 288, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "stinfo": { + "width": 32, + "height": 32, + "x": 320, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "placement": { + "width": 32, + "height": 32, + "x": 96, + "y": 160, + "pixelRatio": 1, + "visible": true + }, + "bsnssinfo": { + "width": 32, + "height": 32, + "x": 128, + "y": 160, + "pixelRatio": 1, + "visible": true + }, + "flrvvlg": { + "width": 32, + "height": 32, + "x": 160, + "y": 160, + "pixelRatio": 1, + "visible": true + }, + "Marker": { + "width": 32, + "height": 32, + "x": 64, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "adcd4": { + "width": 32, + "height": 32, + "x": 96, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "adcd5": { + "width": 32, + "height": 32, + "x": 128, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "adcd6": { + "width": 32, + "height": 32, + "x": 160, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "adcd7": { + "width": 32, + "height": 32, + "x": 192, + "y": 192, + "pixelRatio": 1, + "visible": true + }, + "防灾对象": { + "width": 32, + "height": 32, + "x": 64, + "y": 64, + "pixelRatio": 1, + "visible": true + }, + "地形": { + "width": 32, + "height": 32, + "x": 0, + "y": 224, + "pixelRatio": 1, + "visible": true + }, + "河流": { + "width": 32, + "height": 32, + "x": 32, + "y": 224, + "pixelRatio": 1, + "visible": true + }, + "道路": { + "width": 32, + "height": 32, + "x": 64, + "y": 224, + "pixelRatio": 1, + "visible": true + }, + "图像站": { + "width": 32, + "height": 32, + "x": 96, + "y": 32, + "pixelRatio": 1, + "visible": true + }, + "泵站": { + "width": 32, + "height": 32, + "x": 352, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "水电站": { + "width": 32, + "height": 32, + "x": 384, + "y": 0, + "pixelRatio": 1, + "visible": true + }, + "病险水库": { + "width": 32, + "height": 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+function clamp( value, min, max ) { + + return Math.max( min, Math.min( max, value ) ); + +} + +// compute euclidian modulo of m % n +// https://en.wikipedia.org/wiki/Modulo_operation +function euclideanModulo( n, m ) { + + return ( ( n % m ) + m ) % m; + +} + +// Linear mapping from range to range +function mapLinear( x, a1, a2, b1, b2 ) { + + return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 ); + +} + +// https://www.gamedev.net/tutorials/programming/general-and-gameplay-programming/inverse-lerp-a-super-useful-yet-often-overlooked-function-r5230/ +function inverseLerp( x, y, value ) { + + if ( x !== y ) { + + return ( value - x ) / ( y - x ); + + } else { + + return 0; + + } + +} + +// https://en.wikipedia.org/wiki/Linear_interpolation +function lerp( x, y, t ) { + + return ( 1 - t ) * x + t * y; + +} + +// http://www.rorydriscoll.com/2016/03/07/frame-rate-independent-damping-using-lerp/ +function damp( x, y, lambda, dt ) { + + return lerp( x, y, 1 - Math.exp( - lambda * dt ) ); + +} + +// https://www.desmos.com/calculator/vcsjnyz7x4 +function pingpong( x, length = 1 ) { + + return length - Math.abs( euclideanModulo( x, length * 2 ) - length ); + +} + +// http://en.wikipedia.org/wiki/Smoothstep +function smoothstep( x, min, max ) { + + if ( x <= min ) return 0; + if ( x >= max ) return 1; + + x = ( x - min ) / ( max - min ); + + return x * x * ( 3 - 2 * x ); + +} + +function smootherstep( x, min, max ) { + + if ( x <= min ) return 0; + if ( x >= max ) return 1; + + x = ( x - min ) / ( max - min ); + + return x * x * x * ( x * ( x * 6 - 15 ) + 10 ); + +} + +// Random integer from interval +function randInt( low, high ) { + + return low + Math.floor( Math.random() * ( high - low + 1 ) ); + +} + +// Random float from interval +function randFloat( low, high ) { + + return low + Math.random() * ( high - low ); + +} + +// Random float from <-range/2, range/2> interval +function randFloatSpread( range ) { + + return range * ( 0.5 - Math.random() ); + +} + +// Deterministic pseudo-random float in the interval [ 0, 1 ] +function seededRandom( s ) { + + if ( s !== undefined ) _seed = s % 2147483647; + + // Park-Miller algorithm + + _seed = _seed * 16807 % 2147483647; + + return ( _seed - 1 ) / 2147483646; + +} + +function degToRad( degrees ) { + + return degrees * DEG2RAD; + +} + +function radToDeg( radians ) { + + return radians * RAD2DEG; + +} + +function isPowerOfTwo( value ) { + + return ( value & ( value - 1 ) ) === 0 && value !== 0; + +} + +function ceilPowerOfTwo( value ) { + + return Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) ); + +} + +function floorPowerOfTwo( value ) { + + return Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) ); + +} + +function setQuaternionFromProperEuler( q, a, b, c, order ) { + + // Intrinsic Proper Euler Angles - see https://en.wikipedia.org/wiki/Euler_angles + + // rotations are applied to the axes in the order specified by 'order' + // rotation by angle 'a' is applied first, then by angle 'b', then by angle 'c' + // angles are in radians + + const cos = Math.cos; + const sin = Math.sin; + + const c2 = cos( b / 2 ); + const s2 = sin( b / 2 ); + + const c13 = cos( ( a + c ) / 2 ); + const s13 = sin( ( a + c ) / 2 ); + + const c1_3 = cos( ( a - c ) / 2 ); + const s1_3 = sin( ( a - c ) / 2 ); + + const c3_1 = cos( ( c - a ) / 2 ); + const s3_1 = sin( ( c - a ) / 2 ); + + switch ( order ) { + + case 'XYX': + q.set( c2 * s13, s2 * c1_3, s2 * s1_3, c2 * c13 ); + break; + + case 'YZY': + q.set( s2 * s1_3, c2 * s13, s2 * c1_3, c2 * c13 ); + break; + + case 'ZXZ': + q.set( s2 * c1_3, s2 * s1_3, c2 * s13, c2 * c13 ); + break; + + case 'XZX': + q.set( c2 * s13, s2 * s3_1, s2 * c3_1, c2 * c13 ); + break; + + case 'YXY': + q.set( s2 * c3_1, c2 * s13, s2 * s3_1, c2 * c13 ); + break; + + case 'ZYZ': + q.set( s2 * s3_1, s2 * c3_1, c2 * s13, c2 * c13 ); + break; + + default: + console.warn( 'THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: ' + order ); + + } + +} + +var MathUtils = /*#__PURE__*/Object.freeze({ + __proto__: null, + DEG2RAD: DEG2RAD, + RAD2DEG: RAD2DEG, + generateUUID: generateUUID, + clamp: clamp, + euclideanModulo: euclideanModulo, + mapLinear: mapLinear, + inverseLerp: inverseLerp, + lerp: lerp, + damp: damp, + pingpong: pingpong, + smoothstep: smoothstep, + smootherstep: smootherstep, + randInt: randInt, + randFloat: randFloat, + randFloatSpread: randFloatSpread, + seededRandom: seededRandom, + degToRad: degToRad, + radToDeg: radToDeg, + isPowerOfTwo: isPowerOfTwo, + ceilPowerOfTwo: ceilPowerOfTwo, + floorPowerOfTwo: floorPowerOfTwo, + setQuaternionFromProperEuler: setQuaternionFromProperEuler +}); + +class Vector2 { + + constructor( x = 0, y = 0 ) { + + this.x = x; + this.y = y; + + } + + get width() { + + return this.x; + + } + + set width( value ) { + + this.x = value; + + } + + get height() { + + return this.y; + + } + + set height( value ) { + + this.y = value; + + } + + set( x, y ) { + + this.x = x; + this.y = y; + + return this; + + } + + setScalar( scalar ) { + + this.x = scalar; + this.y = scalar; + + return this; + + } + + setX( x ) { + + this.x = x; + + return this; + + } + + setY( y ) { + + this.y = y; + + return this; + + } + + setComponent( index, value ) { + + switch ( index ) { + + case 0: this.x = value; break; + case 1: this.y = value; break; + default: throw new Error( 'index is out of range: ' + index ); + + } + + return this; + + } + + getComponent( index ) { + + switch ( index ) { + + case 0: return this.x; + case 1: return this.y; + default: throw new Error( 'index is out of range: ' + index ); + + } + + } + + clone() { + + return new this.constructor( this.x, this.y ); + + } + + copy( v ) { + + this.x = v.x; + this.y = v.y; + + return this; + + } + + add( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' ); + return this.addVectors( v, w ); + + } + + this.x += v.x; + this.y += v.y; + + return this; + + } + + addScalar( s ) { + + this.x += s; + this.y += s; + + return this; + + } + + addVectors( a, b ) { + + this.x = a.x + b.x; + this.y = a.y + b.y; + + return this; + + } + + addScaledVector( v, s ) { + + this.x += v.x * s; + this.y += v.y * s; + + return this; + + } + + sub( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' ); + return this.subVectors( v, w ); + + } + + this.x -= v.x; + this.y -= v.y; + + return this; + + } + + subScalar( s ) { + + this.x -= s; + this.y -= s; + + return this; + + } + + subVectors( a, b ) { + + this.x = a.x - b.x; + this.y = a.y - b.y; + + return this; + + } + + multiply( v ) { + + this.x *= v.x; + this.y *= v.y; + + return this; + + } + + multiplyScalar( scalar ) { + + this.x *= scalar; + this.y *= scalar; + + return this; + + } + + divide( v ) { + + this.x /= v.x; + this.y /= v.y; + + return this; + + } + + divideScalar( scalar ) { + + return this.multiplyScalar( 1 / scalar ); + + } + + applyMatrix3( m ) { + + const x = this.x, y = this.y; + const e = m.elements; + + this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ]; + this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ]; + + return this; + + } + + min( v ) { + + this.x = Math.min( this.x, v.x ); + this.y = Math.min( this.y, v.y ); + + return this; + + } + + max( v ) { + + this.x = Math.max( this.x, v.x ); + this.y = Math.max( this.y, v.y ); + + return this; + + } + + clamp( min, max ) { + + // assumes min < max, componentwise + + this.x = Math.max( min.x, Math.min( max.x, this.x ) ); + this.y = Math.max( min.y, Math.min( max.y, this.y ) ); + + return this; + + } + + clampScalar( minVal, maxVal ) { + + this.x = Math.max( minVal, Math.min( maxVal, this.x ) ); + this.y = Math.max( minVal, Math.min( maxVal, this.y ) ); + + return this; + + } + + clampLength( min, max ) { + + const length = this.length(); + + return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) ); + + } + + floor() { + + this.x = Math.floor( this.x ); + this.y = Math.floor( this.y ); + + return this; + + } + + ceil() { + + this.x = Math.ceil( this.x ); + this.y = Math.ceil( this.y ); + + return this; + + } + + round() { + + this.x = Math.round( this.x ); + this.y = Math.round( this.y ); + + return this; + + } + + roundToZero() { + + this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x ); + this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y ); + + return this; + + } + + negate() { + + this.x = - this.x; + this.y = - this.y; + + return this; + + } + + dot( v ) { + + return this.x * v.x + this.y * v.y; + + } + + cross( v ) { + + return this.x * v.y - this.y * v.x; + + } + + lengthSq() { + + return this.x * this.x + this.y * this.y; + + } + + length() { + + return Math.sqrt( this.x * this.x + this.y * this.y ); + + } + + manhattanLength() { + + return Math.abs( this.x ) + Math.abs( this.y ); + + } + + normalize() { + + return this.divideScalar( this.length() || 1 ); + + } + + angle() { + + // computes the angle in radians with respect to the positive x-axis + + const angle = Math.atan2( - this.y, - this.x ) + Math.PI; + + return angle; + + } + + distanceTo( v ) { + + return Math.sqrt( this.distanceToSquared( v ) ); + + } + + distanceToSquared( v ) { + + const dx = this.x - v.x, dy = this.y - v.y; + return dx * dx + dy * dy; + + } + + manhattanDistanceTo( v ) { + + return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ); + + } + + setLength( length ) { + + return this.normalize().multiplyScalar( length ); + + } + + lerp( v, alpha ) { + + this.x += ( v.x - this.x ) * alpha; + this.y += ( v.y - this.y ) * alpha; + + return this; + + } + + lerpVectors( v1, v2, alpha ) { + + this.x = v1.x + ( v2.x - v1.x ) * alpha; + this.y = v1.y + ( v2.y - v1.y ) * alpha; + + return this; + + } + + equals( v ) { + + return ( ( v.x === this.x ) && ( v.y === this.y ) ); + + } + + fromArray( array, offset = 0 ) { + + this.x = array[ offset ]; + this.y = array[ offset + 1 ]; + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this.x; + array[ offset + 1 ] = this.y; + + return array; + + } + + fromBufferAttribute( attribute, index, offset ) { + + if ( offset !== undefined ) { + + console.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' ); + + } + + this.x = attribute.getX( index ); + this.y = attribute.getY( index ); + + return this; + + } + + rotateAround( center, angle ) { + + const c = Math.cos( angle ), s = Math.sin( angle ); + + const x = this.x - center.x; + const y = this.y - center.y; + + this.x = x * c - y * s + center.x; + this.y = x * s + y * c + center.y; + + return this; + + } + + random() { + + this.x = Math.random(); + this.y = Math.random(); + + return this; + + } + + *[ Symbol.iterator ]() { + + yield this.x; + yield this.y; + + } + +} + +Vector2.prototype.isVector2 = true; + +class Matrix3 { + + constructor() { + + this.elements = [ + + 1, 0, 0, + 0, 1, 0, + 0, 0, 1 + + ]; + + if ( arguments.length > 0 ) { + + console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' ); + + } + + } + + set( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) { + + const te = this.elements; + + te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31; + te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32; + te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33; + + return this; + + } + + identity() { + + this.set( + + 1, 0, 0, + 0, 1, 0, + 0, 0, 1 + + ); + + return this; + + } + + copy( m ) { + + const te = this.elements; + const me = m.elements; + + te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; + te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; + te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ]; + + return this; + + } + + extractBasis( xAxis, yAxis, zAxis ) { + + xAxis.setFromMatrix3Column( this, 0 ); + yAxis.setFromMatrix3Column( this, 1 ); + zAxis.setFromMatrix3Column( this, 2 ); + + return this; + + } + + setFromMatrix4( m ) { + + const me = m.elements; + + this.set( + + me[ 0 ], me[ 4 ], me[ 8 ], + me[ 1 ], me[ 5 ], me[ 9 ], + me[ 2 ], me[ 6 ], me[ 10 ] + + ); + + return this; + + } + + multiply( m ) { + + return this.multiplyMatrices( this, m ); + + } + + premultiply( m ) { + + return this.multiplyMatrices( m, this ); + + } + + multiplyMatrices( a, b ) { + + const ae = a.elements; + const be = b.elements; + const te = this.elements; + + const a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ]; + const a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ]; + const a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ]; + + const b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ]; + const b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ]; + const b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ]; + + te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31; + te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32; + te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33; + + te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31; + te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32; + te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33; + + te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31; + te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32; + te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33; + + return this; + + } + + multiplyScalar( s ) { + + const te = this.elements; + + te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s; + te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s; + te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s; + + return this; + + } + + determinant() { + + const te = this.elements; + + const a = te[ 0 ], b = te[ 1 ], c = te[ 2 ], + d = te[ 3 ], e = te[ 4 ], f = te[ 5 ], + g = te[ 6 ], h = te[ 7 ], i = te[ 8 ]; + + return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g; + + } + + invert() { + + const te = this.elements, + + n11 = te[ 0 ], n21 = te[ 1 ], n31 = te[ 2 ], + n12 = te[ 3 ], n22 = te[ 4 ], n32 = te[ 5 ], + n13 = te[ 6 ], n23 = te[ 7 ], n33 = te[ 8 ], + + t11 = n33 * n22 - n32 * n23, + t12 = n32 * n13 - n33 * n12, + t13 = n23 * n12 - n22 * n13, + + det = n11 * t11 + n21 * t12 + n31 * t13; + + if ( det === 0 ) return this.set( 0, 0, 0, 0, 0, 0, 0, 0, 0 ); + + const detInv = 1 / det; + + te[ 0 ] = t11 * detInv; + te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv; + te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv; + + te[ 3 ] = t12 * detInv; + te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv; + te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv; + + te[ 6 ] = t13 * detInv; + te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv; + te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv; + + return this; + + } + + transpose() { + + let tmp; + const m = this.elements; + + tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp; + tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp; + tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp; + + return this; + + } + + getNormalMatrix( matrix4 ) { + + return this.setFromMatrix4( matrix4 ).invert().transpose(); + + } + + transposeIntoArray( r ) { + + const m = this.elements; + + r[ 0 ] = m[ 0 ]; + r[ 1 ] = m[ 3 ]; + r[ 2 ] = m[ 6 ]; + r[ 3 ] = m[ 1 ]; + r[ 4 ] = m[ 4 ]; + r[ 5 ] = m[ 7 ]; + r[ 6 ] = m[ 2 ]; + r[ 7 ] = m[ 5 ]; + r[ 8 ] = m[ 8 ]; + + return this; + + } + + setUvTransform( tx, ty, sx, sy, rotation, cx, cy ) { + + const c = Math.cos( rotation ); + const s = Math.sin( rotation ); + + this.set( + sx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx, + - sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty, + 0, 0, 1 + ); + + return this; + + } + + scale( sx, sy ) { + + const te = this.elements; + + te[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx; + te[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy; + + return this; + + } + + rotate( theta ) { + + const c = Math.cos( theta ); + const s = Math.sin( theta ); + + const te = this.elements; + + const a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ]; + const a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ]; + + te[ 0 ] = c * a11 + s * a21; + te[ 3 ] = c * a12 + s * a22; + te[ 6 ] = c * a13 + s * a23; + + te[ 1 ] = - s * a11 + c * a21; + te[ 4 ] = - s * a12 + c * a22; + te[ 7 ] = - s * a13 + c * a23; + + return this; + + } + + translate( tx, ty ) { + + const te = this.elements; + + te[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ]; + te[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ]; + + return this; + + } + + equals( matrix ) { + + const te = this.elements; + const me = matrix.elements; + + for ( let i = 0; i < 9; i ++ ) { + + if ( te[ i ] !== me[ i ] ) return false; + + } + + return true; + + } + + fromArray( array, offset = 0 ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.elements[ i ] = array[ i + offset ]; + + } + + return this; + + } + + toArray( array = [], offset = 0 ) { + + const te = this.elements; + + array[ offset ] = te[ 0 ]; + array[ offset + 1 ] = te[ 1 ]; + array[ offset + 2 ] = te[ 2 ]; + + array[ offset + 3 ] = te[ 3 ]; + array[ offset + 4 ] = te[ 4 ]; + array[ offset + 5 ] = te[ 5 ]; + + array[ offset + 6 ] = te[ 6 ]; + array[ offset + 7 ] = te[ 7 ]; + array[ offset + 8 ] = te[ 8 ]; + + return array; + + } + + clone() { + + return new this.constructor().fromArray( this.elements ); + + } + +} + +Matrix3.prototype.isMatrix3 = true; + +function arrayMax( array ) { + + if ( array.length === 0 ) return - Infinity; + + let max = array[ 0 ]; + + for ( let i = 1, l = array.length; i < l; ++ i ) { + + if ( array[ i ] > max ) max = array[ i ]; + + } + + return max; + +} + +const TYPED_ARRAYS = { + Int8Array: Int8Array, + Uint8Array: Uint8Array, + Uint8ClampedArray: Uint8ClampedArray, + Int16Array: Int16Array, + Uint16Array: Uint16Array, + Int32Array: Int32Array, + Uint32Array: Uint32Array, + Float32Array: Float32Array, + Float64Array: Float64Array +}; + +function getTypedArray( type, buffer ) { + + return new TYPED_ARRAYS[ type ]( buffer ); + +} + +function createElementNS( name ) { + + return document.createElementNS( 'http://www.w3.org/1999/xhtml', name ); + +} + +/** + * cyrb53 hash for string from: https://stackoverflow.com/a/52171480 + * + * Public Domain, @bryc - https://stackoverflow.com/users/815680/bryc + * + * It is roughly similar to the well-known MurmurHash/xxHash algorithms. It uses a combination + * of multiplication and Xorshift to generate the hash, but not as thorough. As a result it's + * faster than either would be in JavaScript and significantly simpler to implement. Keep in + * mind this is not a secure algorithm, if privacy/security is a concern, this is not for you. + * + * @param {string} str + * @param {number} seed, default 0 + * @returns number + */ +function hashString( str, seed = 0 ) { + + let h1 = 0xdeadbeef ^ seed, h2 = 0x41c6ce57 ^ seed; + + for ( let i = 0, ch; i < str.length; i ++ ) { + + ch = str.charCodeAt( i ); + + h1 = Math.imul( h1 ^ ch, 2654435761 ); + + h2 = Math.imul( h2 ^ ch, 1597334677 ); + + } + + h1 = Math.imul( h1 ^ ( h1 >>> 16 ), 2246822507 ) ^ Math.imul( h2 ^ ( h2 >>> 13 ), 3266489909 ); + + h2 = Math.imul( h2 ^ ( h2 >>> 16 ), 2246822507 ) ^ Math.imul( h1 ^ ( h1 >>> 13 ), 3266489909 ); + + return 4294967296 * ( 2097151 & h2 ) + ( h1 >>> 0 ); + +} + +let _canvas; + +class ImageUtils { + + static getDataURL( image ) { + + if ( /^data:/i.test( image.src ) ) { + + return image.src; + + } + + if ( typeof HTMLCanvasElement == 'undefined' ) { + + return image.src; + + } + + let canvas; + + if ( image instanceof HTMLCanvasElement ) { + + canvas = image; + + } else { + + if ( _canvas === undefined ) _canvas = createElementNS( 'canvas' ); + + _canvas.width = image.width; + _canvas.height = image.height; + + const context = _canvas.getContext( '2d' ); + + if ( image instanceof ImageData ) { + + context.putImageData( image, 0, 0 ); + + } else { + + context.drawImage( image, 0, 0, image.width, image.height ); + + } + + canvas = _canvas; + + } + + if ( canvas.width > 2048 || canvas.height > 2048 ) { + + console.warn( 'THREE.ImageUtils.getDataURL: Image converted to jpg for performance reasons', image ); + + return canvas.toDataURL( 'image/jpeg', 0.6 ); + + } else { + + return canvas.toDataURL( 'image/png' ); + + } + + } + +} + +let textureId = 0; + +class Texture extends EventDispatcher { + + constructor( image = Texture.DEFAULT_IMAGE, mapping = Texture.DEFAULT_MAPPING, wrapS = ClampToEdgeWrapping, wrapT = ClampToEdgeWrapping, magFilter = LinearFilter, minFilter = LinearMipmapLinearFilter, format = RGBAFormat, type = UnsignedByteType, anisotropy = 1, encoding = LinearEncoding ) { + + super(); + + Object.defineProperty( this, 'id', { value: textureId ++ } ); + + this.uuid = generateUUID(); + + this.name = ''; + + this.image = image; + this.mipmaps = []; + + this.mapping = mapping; + + this.wrapS = wrapS; + this.wrapT = wrapT; + + this.magFilter = magFilter; + this.minFilter = minFilter; + + this.anisotropy = anisotropy; + + this.format = format; + this.internalFormat = null; + this.type = type; + + this.offset = new Vector2( 0, 0 ); + this.repeat = new Vector2( 1, 1 ); + this.center = new Vector2( 0, 0 ); + this.rotation = 0; + + this.matrixAutoUpdate = true; + this.matrix = new Matrix3(); + + this.generateMipmaps = true; + this.premultiplyAlpha = false; + this.flipY = true; + this.unpackAlignment = 4; // valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml) + + // Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap. + // + // Also changing the encoding after already used by a Material will not automatically make the Material + // update. You need to explicitly call Material.needsUpdate to trigger it to recompile. + this.encoding = encoding; + + this.userData = {}; + + this.version = 0; + this.onUpdate = null; + + this.isRenderTargetTexture = false; + + } + + updateMatrix() { + + this.matrix.setUvTransform( this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( source ) { + + this.name = source.name; + + this.image = source.image; + this.mipmaps = source.mipmaps.slice( 0 ); + + this.mapping = source.mapping; + + this.wrapS = source.wrapS; + this.wrapT = source.wrapT; + + this.magFilter = source.magFilter; + this.minFilter = source.minFilter; + + this.anisotropy = source.anisotropy; + + this.format = source.format; + this.internalFormat = source.internalFormat; + this.type = source.type; + + this.offset.copy( source.offset ); + this.repeat.copy( source.repeat ); + this.center.copy( source.center ); + this.rotation = source.rotation; + + this.matrixAutoUpdate = source.matrixAutoUpdate; + this.matrix.copy( source.matrix ); + + this.generateMipmaps = source.generateMipmaps; + this.premultiplyAlpha = source.premultiplyAlpha; + this.flipY = source.flipY; + this.unpackAlignment = source.unpackAlignment; + this.encoding = source.encoding; + + this.userData = JSON.parse( JSON.stringify( source.userData ) ); + + return this; + + } + + toJSON( meta ) { + + const isRootObject = ( meta === undefined || typeof meta === 'string' ); + + if ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) { + + return meta.textures[ this.uuid ]; + + } + + const output = { + + metadata: { + version: 4.5, + type: 'Texture', + generator: 'Texture.toJSON' + }, + + uuid: this.uuid, + name: this.name, + + mapping: this.mapping, + + repeat: [ this.repeat.x, this.repeat.y ], + offset: [ this.offset.x, this.offset.y ], + center: [ this.center.x, this.center.y ], + rotation: this.rotation, + + wrap: [ this.wrapS, this.wrapT ], + + format: this.format, + type: this.type, + encoding: this.encoding, + + minFilter: this.minFilter, + magFilter: this.magFilter, + anisotropy: this.anisotropy, + + flipY: this.flipY, + + premultiplyAlpha: this.premultiplyAlpha, + unpackAlignment: this.unpackAlignment + + }; + + if ( this.image !== undefined ) { + + // TODO: Move to THREE.Image + + const image = this.image; + + if ( image.uuid === undefined ) { + + image.uuid = generateUUID(); // UGH + + } + + if ( ! isRootObject && meta.images[ image.uuid ] === undefined ) { + + let url; + + if ( Array.isArray( image ) ) { + + // process array of images e.g. CubeTexture + + url = []; + + for ( let i = 0, l = image.length; i < l; i ++ ) { + + // check cube texture with data textures + + if ( image[ i ].isDataTexture ) { + + url.push( serializeImage( image[ i ].image ) ); + + } else { + + url.push( serializeImage( image[ i ] ) ); + + } + + } + + } else { + + // process single image + + url = serializeImage( image ); + + } + + meta.images[ image.uuid ] = { + uuid: image.uuid, + url: url + }; + + } + + output.image = image.uuid; + + } + + if ( JSON.stringify( this.userData ) !== '{}' ) output.userData = this.userData; + + if ( ! isRootObject ) { + + meta.textures[ this.uuid ] = output; + + } + + return output; + + } + + dispose() { + + this.dispatchEvent( { type: 'dispose' } ); + + } + + transformUv( uv ) { + + if ( this.mapping !== UVMapping ) return uv; + + uv.applyMatrix3( this.matrix ); + + if ( uv.x < 0 || uv.x > 1 ) { + + switch ( this.wrapS ) { + + case RepeatWrapping: + + uv.x = uv.x - Math.floor( uv.x ); + break; + + case ClampToEdgeWrapping: + + uv.x = uv.x < 0 ? 0 : 1; + break; + + case MirroredRepeatWrapping: + + if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) { + + uv.x = Math.ceil( uv.x ) - uv.x; + + } else { + + uv.x = uv.x - Math.floor( uv.x ); + + } + + break; + + } + + } + + if ( uv.y < 0 || uv.y > 1 ) { + + switch ( this.wrapT ) { + + case RepeatWrapping: + + uv.y = uv.y - Math.floor( uv.y ); + break; + + case ClampToEdgeWrapping: + + uv.y = uv.y < 0 ? 0 : 1; + break; + + case MirroredRepeatWrapping: + + if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) { + + uv.y = Math.ceil( uv.y ) - uv.y; + + } else { + + uv.y = uv.y - Math.floor( uv.y ); + + } + + break; + + } + + } + + if ( this.flipY ) { + + uv.y = 1 - uv.y; + + } + + return uv; + + } + + set needsUpdate( value ) { + + if ( value === true ) this.version ++; + + } + +} + +Texture.DEFAULT_IMAGE = undefined; +Texture.DEFAULT_MAPPING = UVMapping; + +Texture.prototype.isTexture = true; + +function serializeImage( image ) { + + if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) || + ( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) || + ( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) { + + // default images + + return ImageUtils.getDataURL( image ); + + } else { + + if ( image.data ) { + + // images of DataTexture + + return { + data: Array.prototype.slice.call( image.data ), + width: image.width, + height: image.height, + type: image.data.constructor.name + }; + + } else { + + console.warn( 'THREE.Texture: Unable to serialize Texture.' ); + return {}; + + } + + } + +} + +class Vector4 { + + constructor( x = 0, y = 0, z = 0, w = 1 ) { + + this.x = x; + this.y = y; + this.z = z; + this.w = w; + + } + + get width() { + + return this.z; + + } + + set width( value ) { + + this.z = value; + + } + + get height() { + + return this.w; + + } + + set height( value ) { + + this.w = value; + + } + + set( x, y, z, w ) { + + this.x = x; + this.y = y; + this.z = z; + this.w = w; + + return this; + + } + + setScalar( scalar ) { + + this.x = scalar; + this.y = scalar; + this.z = scalar; + this.w = scalar; + + return this; + + } + + setX( x ) { + + this.x = x; + + return this; + + } + + setY( y ) { + + this.y = y; + + return this; + + } + + setZ( z ) { + + this.z = z; + + return this; + + } + + setW( w ) { + + this.w = w; + + return this; + + } + + setComponent( index, value ) { + + switch ( index ) { + + case 0: this.x = value; break; + case 1: this.y = value; break; + case 2: this.z = value; break; + case 3: this.w = value; break; + default: throw new Error( 'index is out of range: ' + index ); + + } + + return this; + + } + + getComponent( index ) { + + switch ( index ) { + + case 0: return this.x; + case 1: return this.y; + case 2: return this.z; + case 3: return this.w; + default: throw new Error( 'index is out of range: ' + index ); + + } + + } + + clone() { + + return new this.constructor( this.x, this.y, this.z, this.w ); + + } + + copy( v ) { + + this.x = v.x; + this.y = v.y; + this.z = v.z; + this.w = ( v.w !== undefined ) ? v.w : 1; + + return this; + + } + + add( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' ); + return this.addVectors( v, w ); + + } + + this.x += v.x; + this.y += v.y; + this.z += v.z; + this.w += v.w; + + return this; + + } + + addScalar( s ) { + + this.x += s; + this.y += s; + this.z += s; + this.w += s; + + return this; + + } + + addVectors( a, b ) { + + this.x = a.x + b.x; + this.y = a.y + b.y; + this.z = a.z + b.z; + this.w = a.w + b.w; + + return this; + + } + + addScaledVector( v, s ) { + + this.x += v.x * s; + this.y += v.y * s; + this.z += v.z * s; + this.w += v.w * s; + + return this; + + } + + sub( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' ); + return this.subVectors( v, w ); + + } + + this.x -= v.x; + this.y -= v.y; + this.z -= v.z; + this.w -= v.w; + + return this; + + } + + subScalar( s ) { + + this.x -= s; + this.y -= s; + this.z -= s; + this.w -= s; + + return this; + + } + + subVectors( a, b ) { + + this.x = a.x - b.x; + this.y = a.y - b.y; + this.z = a.z - b.z; + this.w = a.w - b.w; + + return this; + + } + + multiply( v ) { + + this.x *= v.x; + this.y *= v.y; + this.z *= v.z; + this.w *= v.w; + + return this; + + } + + multiplyScalar( scalar ) { + + this.x *= scalar; + this.y *= scalar; + this.z *= scalar; + this.w *= scalar; + + return this; + + } + + applyMatrix4( m ) { + + const x = this.x, y = this.y, z = this.z, w = this.w; + const e = m.elements; + + this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w; + this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w; + this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w; + this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w; + + return this; + + } + + divideScalar( scalar ) { + + return this.multiplyScalar( 1 / scalar ); + + } + + setAxisAngleFromQuaternion( q ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm + + // q is assumed to be normalized + + this.w = 2 * Math.acos( q.w ); + + const s = Math.sqrt( 1 - q.w * q.w ); + + if ( s < 0.0001 ) { + + this.x = 1; + this.y = 0; + this.z = 0; + + } else { + + this.x = q.x / s; + this.y = q.y / s; + this.z = q.z / s; + + } + + return this; + + } + + setAxisAngleFromRotationMatrix( m ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + let angle, x, y, z; // variables for result + const epsilon = 0.01, // margin to allow for rounding errors + epsilon2 = 0.1, // margin to distinguish between 0 and 180 degrees + + te = m.elements, + + m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ], + m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ], + m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ]; + + if ( ( Math.abs( m12 - m21 ) < epsilon ) && + ( Math.abs( m13 - m31 ) < epsilon ) && + ( Math.abs( m23 - m32 ) < epsilon ) ) { + + // singularity found + // first check for identity matrix which must have +1 for all terms + // in leading diagonal and zero in other terms + + if ( ( Math.abs( m12 + m21 ) < epsilon2 ) && + ( Math.abs( m13 + m31 ) < epsilon2 ) && + ( Math.abs( m23 + m32 ) < epsilon2 ) && + ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) { + + // this singularity is identity matrix so angle = 0 + + this.set( 1, 0, 0, 0 ); + + return this; // zero angle, arbitrary axis + + } + + // otherwise this singularity is angle = 180 + + angle = Math.PI; + + const xx = ( m11 + 1 ) / 2; + const yy = ( m22 + 1 ) / 2; + const zz = ( m33 + 1 ) / 2; + const xy = ( m12 + m21 ) / 4; + const xz = ( m13 + m31 ) / 4; + const yz = ( m23 + m32 ) / 4; + + if ( ( xx > yy ) && ( xx > zz ) ) { + + // m11 is the largest diagonal term + + if ( xx < epsilon ) { + + x = 0; + y = 0.707106781; + z = 0.707106781; + + } else { + + x = Math.sqrt( xx ); + y = xy / x; + z = xz / x; + + } + + } else if ( yy > zz ) { + + // m22 is the largest diagonal term + + if ( yy < epsilon ) { + + x = 0.707106781; + y = 0; + z = 0.707106781; + + } else { + + y = Math.sqrt( yy ); + x = xy / y; + z = yz / y; + + } + + } else { + + // m33 is the largest diagonal term so base result on this + + if ( zz < epsilon ) { + + x = 0.707106781; + y = 0.707106781; + z = 0; + + } else { + + z = Math.sqrt( zz ); + x = xz / z; + y = yz / z; + + } + + } + + this.set( x, y, z, angle ); + + return this; // return 180 deg rotation + + } + + // as we have reached here there are no singularities so we can handle normally + + let s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) + + ( m13 - m31 ) * ( m13 - m31 ) + + ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize + + if ( Math.abs( s ) < 0.001 ) s = 1; + + // prevent divide by zero, should not happen if matrix is orthogonal and should be + // caught by singularity test above, but I've left it in just in case + + this.x = ( m32 - m23 ) / s; + this.y = ( m13 - m31 ) / s; + this.z = ( m21 - m12 ) / s; + this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 ); + + return this; + + } + + min( v ) { + + this.x = Math.min( this.x, v.x ); + this.y = Math.min( this.y, v.y ); + this.z = Math.min( this.z, v.z ); + this.w = Math.min( this.w, v.w ); + + return this; + + } + + max( v ) { + + this.x = Math.max( this.x, v.x ); + this.y = Math.max( this.y, v.y ); + this.z = Math.max( this.z, v.z ); + this.w = Math.max( this.w, v.w ); + + return this; + + } + + clamp( min, max ) { + + // assumes min < max, componentwise + + this.x = Math.max( min.x, Math.min( max.x, this.x ) ); + this.y = Math.max( min.y, Math.min( max.y, this.y ) ); + this.z = Math.max( min.z, Math.min( max.z, this.z ) ); + this.w = Math.max( min.w, Math.min( max.w, this.w ) ); + + return this; + + } + + clampScalar( minVal, maxVal ) { + + this.x = Math.max( minVal, Math.min( maxVal, this.x ) ); + this.y = Math.max( minVal, Math.min( maxVal, this.y ) ); + this.z = Math.max( minVal, Math.min( maxVal, this.z ) ); + this.w = Math.max( minVal, Math.min( maxVal, this.w ) ); + + return this; + + } + + clampLength( min, max ) { + + const length = this.length(); + + return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) ); + + } + + floor() { + + this.x = Math.floor( this.x ); + this.y = Math.floor( this.y ); + this.z = Math.floor( this.z ); + this.w = Math.floor( this.w ); + + return this; + + } + + ceil() { + + this.x = Math.ceil( this.x ); + this.y = Math.ceil( this.y ); + this.z = Math.ceil( this.z ); + this.w = Math.ceil( this.w ); + + return this; + + } + + round() { + + this.x = Math.round( this.x ); + this.y = Math.round( this.y ); + this.z = Math.round( this.z ); + this.w = Math.round( this.w ); + + return this; + + } + + roundToZero() { + + this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x ); + this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y ); + this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z ); + this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w ); + + return this; + + } + + negate() { + + this.x = - this.x; + this.y = - this.y; + this.z = - this.z; + this.w = - this.w; + + return this; + + } + + dot( v ) { + + return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w; + + } + + lengthSq() { + + return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w; + + } + + length() { + + return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w ); + + } + + manhattanLength() { + + return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w ); + + } + + normalize() { + + return this.divideScalar( this.length() || 1 ); + + } + + setLength( length ) { + + return this.normalize().multiplyScalar( length ); + + } + + lerp( v, alpha ) { + + this.x += ( v.x - this.x ) * alpha; + this.y += ( v.y - this.y ) * alpha; + this.z += ( v.z - this.z ) * alpha; + this.w += ( v.w - this.w ) * alpha; + + return this; + + } + + lerpVectors( v1, v2, alpha ) { + + this.x = v1.x + ( v2.x - v1.x ) * alpha; + this.y = v1.y + ( v2.y - v1.y ) * alpha; + this.z = v1.z + ( v2.z - v1.z ) * alpha; + this.w = v1.w + ( v2.w - v1.w ) * alpha; + + return this; + + } + + equals( v ) { + + return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) ); + + } + + fromArray( array, offset = 0 ) { + + this.x = array[ offset ]; + this.y = array[ offset + 1 ]; + this.z = array[ offset + 2 ]; + this.w = array[ offset + 3 ]; + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this.x; + array[ offset + 1 ] = this.y; + array[ offset + 2 ] = this.z; + array[ offset + 3 ] = this.w; + + return array; + + } + + fromBufferAttribute( attribute, index, offset ) { + + if ( offset !== undefined ) { + + console.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' ); + + } + + this.x = attribute.getX( index ); + this.y = attribute.getY( index ); + this.z = attribute.getZ( index ); + this.w = attribute.getW( index ); + + return this; + + } + + random() { + + this.x = Math.random(); + this.y = Math.random(); + this.z = Math.random(); + this.w = Math.random(); + + return this; + + } + + *[ Symbol.iterator ]() { + + yield this.x; + yield this.y; + yield this.z; + yield this.w; + + } + +} + +Vector4.prototype.isVector4 = true; + +/* + In options, we can specify: + * Texture parameters for an auto-generated target texture + * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers +*/ +class WebGLRenderTarget extends EventDispatcher { + + constructor( width, height, options = {} ) { + + super(); + + this.width = width; + this.height = height; + this.depth = 1; + + this.scissor = new Vector4( 0, 0, width, height ); + this.scissorTest = false; + + this.viewport = new Vector4( 0, 0, width, height ); + + this.texture = new Texture( undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding ); + this.texture.isRenderTargetTexture = true; + + this.texture.image = { width: width, height: height, depth: 1 }; + + this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false; + this.texture.internalFormat = options.internalFormat !== undefined ? options.internalFormat : null; + this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter; + + this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true; + this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : false; + this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null; + + } + + setTexture( texture ) { + + texture.image = { + width: this.width, + height: this.height, + depth: this.depth + }; + + this.texture = texture; + + } + + setSize( width, height, depth = 1 ) { + + if ( this.width !== width || this.height !== height || this.depth !== depth ) { + + this.width = width; + this.height = height; + this.depth = depth; + + this.texture.image.width = width; + this.texture.image.height = height; + this.texture.image.depth = depth; + + this.dispose(); + + } + + this.viewport.set( 0, 0, width, height ); + this.scissor.set( 0, 0, width, height ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( source ) { + + this.width = source.width; + this.height = source.height; + this.depth = source.depth; + + this.viewport.copy( source.viewport ); + + this.texture = source.texture.clone(); + this.texture.image = { ...this.texture.image }; // See #20328. + + this.depthBuffer = source.depthBuffer; + this.stencilBuffer = source.stencilBuffer; + this.depthTexture = source.depthTexture; + + return this; + + } + + dispose() { + + this.dispatchEvent( { type: 'dispose' } ); + + } + +} + +WebGLRenderTarget.prototype.isWebGLRenderTarget = true; + +class WebGLMultipleRenderTargets extends WebGLRenderTarget { + + constructor( width, height, count ) { + + super( width, height ); + + const texture = this.texture; + + this.texture = []; + + for ( let i = 0; i < count; i ++ ) { + + this.texture[ i ] = texture.clone(); + + } + + } + + setSize( width, height, depth = 1 ) { + + if ( this.width !== width || this.height !== height || this.depth !== depth ) { + + this.width = width; + this.height = height; + this.depth = depth; + + for ( let i = 0, il = this.texture.length; i < il; i ++ ) { + + this.texture[ i ].image.width = width; + this.texture[ i ].image.height = height; + this.texture[ i ].image.depth = depth; + + } + + this.dispose(); + + } + + this.viewport.set( 0, 0, width, height ); + this.scissor.set( 0, 0, width, height ); + + return this; + + } + + copy( source ) { + + this.dispose(); + + this.width = source.width; + this.height = source.height; + this.depth = source.depth; + + this.viewport.set( 0, 0, this.width, this.height ); + this.scissor.set( 0, 0, this.width, this.height ); + + this.depthBuffer = source.depthBuffer; + this.stencilBuffer = source.stencilBuffer; + this.depthTexture = source.depthTexture; + + this.texture.length = 0; + + for ( let i = 0, il = source.texture.length; i < il; i ++ ) { + + this.texture[ i ] = source.texture[ i ].clone(); + + } + + return this; + + } + +} + +WebGLMultipleRenderTargets.prototype.isWebGLMultipleRenderTargets = true; + +class WebGLMultisampleRenderTarget extends WebGLRenderTarget { + + constructor( width, height, options ) { + + super( width, height, options ); + + this.samples = 4; + + } + + copy( source ) { + + super.copy.call( this, source ); + + this.samples = source.samples; + + return this; + + } + +} + +WebGLMultisampleRenderTarget.prototype.isWebGLMultisampleRenderTarget = true; + +class Quaternion { + + constructor( x = 0, y = 0, z = 0, w = 1 ) { + + this._x = x; + this._y = y; + this._z = z; + this._w = w; + + } + + static slerp( qa, qb, qm, t ) { + + console.warn( 'THREE.Quaternion: Static .slerp() has been deprecated. Use qm.slerpQuaternions( qa, qb, t ) instead.' ); + return qm.slerpQuaternions( qa, qb, t ); + + } + + static slerpFlat( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) { + + // fuzz-free, array-based Quaternion SLERP operation + + let x0 = src0[ srcOffset0 + 0 ], + y0 = src0[ srcOffset0 + 1 ], + z0 = src0[ srcOffset0 + 2 ], + w0 = src0[ srcOffset0 + 3 ]; + + const x1 = src1[ srcOffset1 + 0 ], + y1 = src1[ srcOffset1 + 1 ], + z1 = src1[ srcOffset1 + 2 ], + w1 = src1[ srcOffset1 + 3 ]; + + if ( t === 0 ) { + + dst[ dstOffset + 0 ] = x0; + dst[ dstOffset + 1 ] = y0; + dst[ dstOffset + 2 ] = z0; + dst[ dstOffset + 3 ] = w0; + return; + + } + + if ( t === 1 ) { + + dst[ dstOffset + 0 ] = x1; + dst[ dstOffset + 1 ] = y1; + dst[ dstOffset + 2 ] = z1; + dst[ dstOffset + 3 ] = w1; + return; + + } + + if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) { + + let s = 1 - t; + const cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1, + dir = ( cos >= 0 ? 1 : - 1 ), + sqrSin = 1 - cos * cos; + + // Skip the Slerp for tiny steps to avoid numeric problems: + if ( sqrSin > Number.EPSILON ) { + + const sin = Math.sqrt( sqrSin ), + len = Math.atan2( sin, cos * dir ); + + s = Math.sin( s * len ) / sin; + t = Math.sin( t * len ) / sin; + + } + + const tDir = t * dir; + + x0 = x0 * s + x1 * tDir; + y0 = y0 * s + y1 * tDir; + z0 = z0 * s + z1 * tDir; + w0 = w0 * s + w1 * tDir; + + // Normalize in case we just did a lerp: + if ( s === 1 - t ) { + + const f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 ); + + x0 *= f; + y0 *= f; + z0 *= f; + w0 *= f; + + } + + } + + dst[ dstOffset ] = x0; + dst[ dstOffset + 1 ] = y0; + dst[ dstOffset + 2 ] = z0; + dst[ dstOffset + 3 ] = w0; + + } + + static multiplyQuaternionsFlat( dst, dstOffset, src0, srcOffset0, src1, srcOffset1 ) { + + const x0 = src0[ srcOffset0 ]; + const y0 = src0[ srcOffset0 + 1 ]; + const z0 = src0[ srcOffset0 + 2 ]; + const w0 = src0[ srcOffset0 + 3 ]; + + const x1 = src1[ srcOffset1 ]; + const y1 = src1[ srcOffset1 + 1 ]; + const z1 = src1[ srcOffset1 + 2 ]; + const w1 = src1[ srcOffset1 + 3 ]; + + dst[ dstOffset ] = x0 * w1 + w0 * x1 + y0 * z1 - z0 * y1; + dst[ dstOffset + 1 ] = y0 * w1 + w0 * y1 + z0 * x1 - x0 * z1; + dst[ dstOffset + 2 ] = z0 * w1 + w0 * z1 + x0 * y1 - y0 * x1; + dst[ dstOffset + 3 ] = w0 * w1 - x0 * x1 - y0 * y1 - z0 * z1; + + return dst; + + } + + get x() { + + return this._x; + + } + + set x( value ) { + + this._x = value; + this._onChangeCallback(); + + } + + get y() { + + return this._y; + + } + + set y( value ) { + + this._y = value; + this._onChangeCallback(); + + } + + get z() { + + return this._z; + + } + + set z( value ) { + + this._z = value; + this._onChangeCallback(); + + } + + get w() { + + return this._w; + + } + + set w( value ) { + + this._w = value; + this._onChangeCallback(); + + } + + set( x, y, z, w ) { + + this._x = x; + this._y = y; + this._z = z; + this._w = w; + + this._onChangeCallback(); + + return this; + + } + + clone() { + + return new this.constructor( this._x, this._y, this._z, this._w ); + + } + + copy( quaternion ) { + + this._x = quaternion.x; + this._y = quaternion.y; + this._z = quaternion.z; + this._w = quaternion.w; + + this._onChangeCallback(); + + return this; + + } + + setFromEuler( euler, update ) { + + if ( ! ( euler && euler.isEuler ) ) { + + throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' ); + + } + + const x = euler._x, y = euler._y, z = euler._z, order = euler._order; + + // http://www.mathworks.com/matlabcentral/fileexchange/ + // 20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/ + // content/SpinCalc.m + + const cos = Math.cos; + const sin = Math.sin; + + const c1 = cos( x / 2 ); + const c2 = cos( y / 2 ); + const c3 = cos( z / 2 ); + + const s1 = sin( x / 2 ); + const s2 = sin( y / 2 ); + const s3 = sin( z / 2 ); + + switch ( order ) { + + case 'XYZ': + this._x = s1 * c2 * c3 + c1 * s2 * s3; + this._y = c1 * s2 * c3 - s1 * c2 * s3; + this._z = c1 * c2 * s3 + s1 * s2 * c3; + this._w = c1 * c2 * c3 - s1 * s2 * s3; + break; + + case 'YXZ': + this._x = s1 * c2 * c3 + c1 * s2 * s3; + this._y = c1 * s2 * c3 - s1 * c2 * s3; + this._z = c1 * c2 * s3 - s1 * s2 * c3; + this._w = c1 * c2 * c3 + s1 * s2 * s3; + break; + + case 'ZXY': + this._x = s1 * c2 * c3 - c1 * s2 * s3; + this._y = c1 * s2 * c3 + s1 * c2 * s3; + this._z = c1 * c2 * s3 + s1 * s2 * c3; + this._w = c1 * c2 * c3 - s1 * s2 * s3; + break; + + case 'ZYX': + this._x = s1 * c2 * c3 - c1 * s2 * s3; + this._y = c1 * s2 * c3 + s1 * c2 * s3; + this._z = c1 * c2 * s3 - s1 * s2 * c3; + this._w = c1 * c2 * c3 + s1 * s2 * s3; + break; + + case 'YZX': + this._x = s1 * c2 * c3 + c1 * s2 * s3; + this._y = c1 * s2 * c3 + s1 * c2 * s3; + this._z = c1 * c2 * s3 - s1 * s2 * c3; + this._w = c1 * c2 * c3 - s1 * s2 * s3; + break; + + case 'XZY': + this._x = s1 * c2 * c3 - c1 * s2 * s3; + this._y = c1 * s2 * c3 - s1 * c2 * s3; + this._z = c1 * c2 * s3 + s1 * s2 * c3; + this._w = c1 * c2 * c3 + s1 * s2 * s3; + break; + + default: + console.warn( 'THREE.Quaternion: .setFromEuler() encountered an unknown order: ' + order ); + + } + + if ( update !== false ) this._onChangeCallback(); + + return this; + + } + + setFromAxisAngle( axis, angle ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm + + // assumes axis is normalized + + const halfAngle = angle / 2, s = Math.sin( halfAngle ); + + this._x = axis.x * s; + this._y = axis.y * s; + this._z = axis.z * s; + this._w = Math.cos( halfAngle ); + + this._onChangeCallback(); + + return this; + + } + + setFromRotationMatrix( m ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + const te = m.elements, + + m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ], + m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ], + m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ], + + trace = m11 + m22 + m33; + + if ( trace > 0 ) { + + const s = 0.5 / Math.sqrt( trace + 1.0 ); + + this._w = 0.25 / s; + this._x = ( m32 - m23 ) * s; + this._y = ( m13 - m31 ) * s; + this._z = ( m21 - m12 ) * s; + + } else if ( m11 > m22 && m11 > m33 ) { + + const s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 ); + + this._w = ( m32 - m23 ) / s; + this._x = 0.25 * s; + this._y = ( m12 + m21 ) / s; + this._z = ( m13 + m31 ) / s; + + } else if ( m22 > m33 ) { + + const s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 ); + + this._w = ( m13 - m31 ) / s; + this._x = ( m12 + m21 ) / s; + this._y = 0.25 * s; + this._z = ( m23 + m32 ) / s; + + } else { + + const s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 ); + + this._w = ( m21 - m12 ) / s; + this._x = ( m13 + m31 ) / s; + this._y = ( m23 + m32 ) / s; + this._z = 0.25 * s; + + } + + this._onChangeCallback(); + + return this; + + } + + setFromUnitVectors( vFrom, vTo ) { + + // assumes direction vectors vFrom and vTo are normalized + + let r = vFrom.dot( vTo ) + 1; + + if ( r < Number.EPSILON ) { + + // vFrom and vTo point in opposite directions + + r = 0; + + if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) { + + this._x = - vFrom.y; + this._y = vFrom.x; + this._z = 0; + this._w = r; + + } else { + + this._x = 0; + this._y = - vFrom.z; + this._z = vFrom.y; + this._w = r; + + } + + } else { + + // crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3 + + this._x = vFrom.y * vTo.z - vFrom.z * vTo.y; + this._y = vFrom.z * vTo.x - vFrom.x * vTo.z; + this._z = vFrom.x * vTo.y - vFrom.y * vTo.x; + this._w = r; + + } + + return this.normalize(); + + } + + angleTo( q ) { + + return 2 * Math.acos( Math.abs( clamp( this.dot( q ), - 1, 1 ) ) ); + + } + + rotateTowards( q, step ) { + + const angle = this.angleTo( q ); + + if ( angle === 0 ) return this; + + const t = Math.min( 1, step / angle ); + + this.slerp( q, t ); + + return this; + + } + + identity() { + + return this.set( 0, 0, 0, 1 ); + + } + + invert() { + + // quaternion is assumed to have unit length + + return this.conjugate(); + + } + + conjugate() { + + this._x *= - 1; + this._y *= - 1; + this._z *= - 1; + + this._onChangeCallback(); + + return this; + + } + + dot( v ) { + + return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w; + + } + + lengthSq() { + + return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w; + + } + + length() { + + return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w ); + + } + + normalize() { + + let l = this.length(); + + if ( l === 0 ) { + + this._x = 0; + this._y = 0; + this._z = 0; + this._w = 1; + + } else { + + l = 1 / l; + + this._x = this._x * l; + this._y = this._y * l; + this._z = this._z * l; + this._w = this._w * l; + + } + + this._onChangeCallback(); + + return this; + + } + + multiply( q, p ) { + + if ( p !== undefined ) { + + console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' ); + return this.multiplyQuaternions( q, p ); + + } + + return this.multiplyQuaternions( this, q ); + + } + + premultiply( q ) { + + return this.multiplyQuaternions( q, this ); + + } + + multiplyQuaternions( a, b ) { + + // from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm + + const qax = a._x, qay = a._y, qaz = a._z, qaw = a._w; + const qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w; + + this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby; + this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz; + this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx; + this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz; + + this._onChangeCallback(); + + return this; + + } + + slerp( qb, t ) { + + if ( t === 0 ) return this; + if ( t === 1 ) return this.copy( qb ); + + const x = this._x, y = this._y, z = this._z, w = this._w; + + // http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/ + + let cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z; + + if ( cosHalfTheta < 0 ) { + + this._w = - qb._w; + this._x = - qb._x; + this._y = - qb._y; + this._z = - qb._z; + + cosHalfTheta = - cosHalfTheta; + + } else { + + this.copy( qb ); + + } + + if ( cosHalfTheta >= 1.0 ) { + + this._w = w; + this._x = x; + this._y = y; + this._z = z; + + return this; + + } + + const sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta; + + if ( sqrSinHalfTheta <= Number.EPSILON ) { + + const s = 1 - t; + this._w = s * w + t * this._w; + this._x = s * x + t * this._x; + this._y = s * y + t * this._y; + this._z = s * z + t * this._z; + + this.normalize(); + this._onChangeCallback(); + + return this; + + } + + const sinHalfTheta = Math.sqrt( sqrSinHalfTheta ); + const halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta ); + const ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta, + ratioB = Math.sin( t * halfTheta ) / sinHalfTheta; + + this._w = ( w * ratioA + this._w * ratioB ); + this._x = ( x * ratioA + this._x * ratioB ); + this._y = ( y * ratioA + this._y * ratioB ); + this._z = ( z * ratioA + this._z * ratioB ); + + this._onChangeCallback(); + + return this; + + } + + slerpQuaternions( qa, qb, t ) { + + this.copy( qa ).slerp( qb, t ); + + } + + random() { + + // Derived from http://planning.cs.uiuc.edu/node198.html + // Note, this source uses w, x, y, z ordering, + // so we swap the order below. + + const u1 = Math.random(); + const sqrt1u1 = Math.sqrt( 1 - u1 ); + const sqrtu1 = Math.sqrt( u1 ); + + const u2 = 2 * Math.PI * Math.random(); + + const u3 = 2 * Math.PI * Math.random(); + + return this.set( + sqrt1u1 * Math.cos( u2 ), + sqrtu1 * Math.sin( u3 ), + sqrtu1 * Math.cos( u3 ), + sqrt1u1 * Math.sin( u2 ), + ); + + } + + equals( quaternion ) { + + return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w ); + + } + + fromArray( array, offset = 0 ) { + + this._x = array[ offset ]; + this._y = array[ offset + 1 ]; + this._z = array[ offset + 2 ]; + this._w = array[ offset + 3 ]; + + this._onChangeCallback(); + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this._x; + array[ offset + 1 ] = this._y; + array[ offset + 2 ] = this._z; + array[ offset + 3 ] = this._w; + + return array; + + } + + fromBufferAttribute( attribute, index ) { + + this._x = attribute.getX( index ); + this._y = attribute.getY( index ); + this._z = attribute.getZ( index ); + this._w = attribute.getW( index ); + + return this; + + } + + _onChange( callback ) { + + this._onChangeCallback = callback; + + return this; + + } + + _onChangeCallback() {} + +} + +Quaternion.prototype.isQuaternion = true; + +class Vector3 { + + constructor( x = 0, y = 0, z = 0 ) { + + this.x = x; + this.y = y; + this.z = z; + + } + + set( x, y, z ) { + + if ( z === undefined ) z = this.z; // sprite.scale.set(x,y) + + this.x = x; + this.y = y; + this.z = z; + + return this; + + } + + setScalar( scalar ) { + + this.x = scalar; + this.y = scalar; + this.z = scalar; + + return this; + + } + + setX( x ) { + + this.x = x; + + return this; + + } + + setY( y ) { + + this.y = y; + + return this; + + } + + setZ( z ) { + + this.z = z; + + return this; + + } + + setComponent( index, value ) { + + switch ( index ) { + + case 0: this.x = value; break; + case 1: this.y = value; break; + case 2: this.z = value; break; + default: throw new Error( 'index is out of range: ' + index ); + + } + + return this; + + } + + getComponent( index ) { + + switch ( index ) { + + case 0: return this.x; + case 1: return this.y; + case 2: return this.z; + default: throw new Error( 'index is out of range: ' + index ); + + } + + } + + clone() { + + return new this.constructor( this.x, this.y, this.z ); + + } + + copy( v ) { + + this.x = v.x; + this.y = v.y; + this.z = v.z; + + return this; + + } + + add( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' ); + return this.addVectors( v, w ); + + } + + this.x += v.x; + this.y += v.y; + this.z += v.z; + + return this; + + } + + addScalar( s ) { + + this.x += s; + this.y += s; + this.z += s; + + return this; + + } + + addVectors( a, b ) { + + this.x = a.x + b.x; + this.y = a.y + b.y; + this.z = a.z + b.z; + + return this; + + } + + addScaledVector( v, s ) { + + this.x += v.x * s; + this.y += v.y * s; + this.z += v.z * s; + + return this; + + } + + sub( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' ); + return this.subVectors( v, w ); + + } + + this.x -= v.x; + this.y -= v.y; + this.z -= v.z; + + return this; + + } + + subScalar( s ) { + + this.x -= s; + this.y -= s; + this.z -= s; + + return this; + + } + + subVectors( a, b ) { + + this.x = a.x - b.x; + this.y = a.y - b.y; + this.z = a.z - b.z; + + return this; + + } + + multiply( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' ); + return this.multiplyVectors( v, w ); + + } + + this.x *= v.x; + this.y *= v.y; + this.z *= v.z; + + return this; + + } + + multiplyScalar( scalar ) { + + this.x *= scalar; + this.y *= scalar; + this.z *= scalar; + + return this; + + } + + multiplyVectors( a, b ) { + + this.x = a.x * b.x; + this.y = a.y * b.y; + this.z = a.z * b.z; + + return this; + + } + + applyEuler( euler ) { + + if ( ! ( euler && euler.isEuler ) ) { + + console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' ); + + } + + return this.applyQuaternion( _quaternion$4.setFromEuler( euler ) ); + + } + + applyAxisAngle( axis, angle ) { + + return this.applyQuaternion( _quaternion$4.setFromAxisAngle( axis, angle ) ); + + } + + applyMatrix3( m ) { + + const x = this.x, y = this.y, z = this.z; + const e = m.elements; + + this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z; + this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z; + this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z; + + return this; + + } + + applyNormalMatrix( m ) { + + return this.applyMatrix3( m ).normalize(); + + } + + applyMatrix4( m ) { + + const x = this.x, y = this.y, z = this.z; + const e = m.elements; + + const w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] ); + + this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w; + this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w; + this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w; + + return this; + + } + + applyQuaternion( q ) { + + const x = this.x, y = this.y, z = this.z; + const qx = q.x, qy = q.y, qz = q.z, qw = q.w; + + // calculate quat * vector + + const ix = qw * x + qy * z - qz * y; + const iy = qw * y + qz * x - qx * z; + const iz = qw * z + qx * y - qy * x; + const iw = - qx * x - qy * y - qz * z; + + // calculate result * inverse quat + + this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy; + this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz; + this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx; + + return this; + + } + + project( camera ) { + + return this.applyMatrix4( camera.matrixWorldInverse ).applyMatrix4( camera.projectionMatrix ); + + } + + unproject( camera ) { + + return this.applyMatrix4( camera.projectionMatrixInverse ).applyMatrix4( camera.matrixWorld ); + + } + + transformDirection( m ) { + + // input: THREE.Matrix4 affine matrix + // vector interpreted as a direction + + const x = this.x, y = this.y, z = this.z; + const e = m.elements; + + this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z; + this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z; + this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z; + + return this.normalize(); + + } + + divide( v ) { + + this.x /= v.x; + this.y /= v.y; + this.z /= v.z; + + return this; + + } + + divideScalar( scalar ) { + + return this.multiplyScalar( 1 / scalar ); + + } + + min( v ) { + + this.x = Math.min( this.x, v.x ); + this.y = Math.min( this.y, v.y ); + this.z = Math.min( this.z, v.z ); + + return this; + + } + + max( v ) { + + this.x = Math.max( this.x, v.x ); + this.y = Math.max( this.y, v.y ); + this.z = Math.max( this.z, v.z ); + + return this; + + } + + clamp( min, max ) { + + // assumes min < max, componentwise + + this.x = Math.max( min.x, Math.min( max.x, this.x ) ); + this.y = Math.max( min.y, Math.min( max.y, this.y ) ); + this.z = Math.max( min.z, Math.min( max.z, this.z ) ); + + return this; + + } + + clampScalar( minVal, maxVal ) { + + this.x = Math.max( minVal, Math.min( maxVal, this.x ) ); + this.y = Math.max( minVal, Math.min( maxVal, this.y ) ); + this.z = Math.max( minVal, Math.min( maxVal, this.z ) ); + + return this; + + } + + clampLength( min, max ) { + + const length = this.length(); + + return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) ); + + } + + floor() { + + this.x = Math.floor( this.x ); + this.y = Math.floor( this.y ); + this.z = Math.floor( this.z ); + + return this; + + } + + ceil() { + + this.x = Math.ceil( this.x ); + this.y = Math.ceil( this.y ); + this.z = Math.ceil( this.z ); + + return this; + + } + + round() { + + this.x = Math.round( this.x ); + this.y = Math.round( this.y ); + this.z = Math.round( this.z ); + + return this; + + } + + roundToZero() { + + this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x ); + this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y ); + this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z ); + + return this; + + } + + negate() { + + this.x = - this.x; + this.y = - this.y; + this.z = - this.z; + + return this; + + } + + dot( v ) { + + return this.x * v.x + this.y * v.y + this.z * v.z; + + } + + // TODO lengthSquared? + + lengthSq() { + + return this.x * this.x + this.y * this.y + this.z * this.z; + + } + + length() { + + return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z ); + + } + + manhattanLength() { + + return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ); + + } + + normalize() { + + return this.divideScalar( this.length() || 1 ); + + } + + setLength( length ) { + + return this.normalize().multiplyScalar( length ); + + } + + lerp( v, alpha ) { + + this.x += ( v.x - this.x ) * alpha; + this.y += ( v.y - this.y ) * alpha; + this.z += ( v.z - this.z ) * alpha; + + return this; + + } + + lerpVectors( v1, v2, alpha ) { + + this.x = v1.x + ( v2.x - v1.x ) * alpha; + this.y = v1.y + ( v2.y - v1.y ) * alpha; + this.z = v1.z + ( v2.z - v1.z ) * alpha; + + return this; + + } + + cross( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' ); + return this.crossVectors( v, w ); + + } + + return this.crossVectors( this, v ); + + } + + crossVectors( a, b ) { + + const ax = a.x, ay = a.y, az = a.z; + const bx = b.x, by = b.y, bz = b.z; + + this.x = ay * bz - az * by; + this.y = az * bx - ax * bz; + this.z = ax * by - ay * bx; + + return this; + + } + + projectOnVector( v ) { + + const denominator = v.lengthSq(); + + if ( denominator === 0 ) return this.set( 0, 0, 0 ); + + const scalar = v.dot( this ) / denominator; + + return this.copy( v ).multiplyScalar( scalar ); + + } + + projectOnPlane( planeNormal ) { + + _vector$c.copy( this ).projectOnVector( planeNormal ); + + return this.sub( _vector$c ); + + } + + reflect( normal ) { + + // reflect incident vector off plane orthogonal to normal + // normal is assumed to have unit length + + return this.sub( _vector$c.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) ); + + } + + angleTo( v ) { + + const denominator = Math.sqrt( this.lengthSq() * v.lengthSq() ); + + if ( denominator === 0 ) return Math.PI / 2; + + const theta = this.dot( v ) / denominator; + + // clamp, to handle numerical problems + + return Math.acos( clamp( theta, - 1, 1 ) ); + + } + + distanceTo( v ) { + + return Math.sqrt( this.distanceToSquared( v ) ); + + } + + distanceToSquared( v ) { + + const dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z; + + return dx * dx + dy * dy + dz * dz; + + } + + manhattanDistanceTo( v ) { + + return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z ); + + } + + setFromSpherical( s ) { + + return this.setFromSphericalCoords( s.radius, s.phi, s.theta ); + + } + + setFromSphericalCoords( radius, phi, theta ) { + + const sinPhiRadius = Math.sin( phi ) * radius; + + this.x = sinPhiRadius * Math.sin( theta ); + this.y = Math.cos( phi ) * radius; + this.z = sinPhiRadius * Math.cos( theta ); + + return this; + + } + + setFromCylindrical( c ) { + + return this.setFromCylindricalCoords( c.radius, c.theta, c.y ); + + } + + setFromCylindricalCoords( radius, theta, y ) { + + this.x = radius * Math.sin( theta ); + this.y = y; + this.z = radius * Math.cos( theta ); + + return this; + + } + + setFromMatrixPosition( m ) { + + const e = m.elements; + + this.x = e[ 12 ]; + this.y = e[ 13 ]; + this.z = e[ 14 ]; + + return this; + + } + + setFromMatrixScale( m ) { + + const sx = this.setFromMatrixColumn( m, 0 ).length(); + const sy = this.setFromMatrixColumn( m, 1 ).length(); + const sz = this.setFromMatrixColumn( m, 2 ).length(); + + this.x = sx; + this.y = sy; + this.z = sz; + + return this; + + } + + setFromMatrixColumn( m, index ) { + + return this.fromArray( m.elements, index * 4 ); + + } + + setFromMatrix3Column( m, index ) { + + return this.fromArray( m.elements, index * 3 ); + + } + + equals( v ) { + + return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) ); + + } + + fromArray( array, offset = 0 ) { + + this.x = array[ offset ]; + this.y = array[ offset + 1 ]; + this.z = array[ offset + 2 ]; + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this.x; + array[ offset + 1 ] = this.y; + array[ offset + 2 ] = this.z; + + return array; + + } + + fromBufferAttribute( attribute, index, offset ) { + + if ( offset !== undefined ) { + + console.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' ); + + } + + this.x = attribute.getX( index ); + this.y = attribute.getY( index ); + this.z = attribute.getZ( index ); + + return this; + + } + + random() { + + this.x = Math.random(); + this.y = Math.random(); + this.z = Math.random(); + + return this; + + } + + randomDirection() { + + // Derived from https://mathworld.wolfram.com/SpherePointPicking.html + + const u = ( Math.random() - 0.5 ) * 2; + const t = Math.random() * Math.PI * 2; + const f = Math.sqrt( 1 - u ** 2 ); + + this.x = f * Math.cos( t ); + this.y = f * Math.sin( t ); + this.z = u; + + return this; + + } + + *[ Symbol.iterator ]() { + + yield this.x; + yield this.y; + yield this.z; + + } + +} + +Vector3.prototype.isVector3 = true; + +const _vector$c = /*@__PURE__*/ new Vector3(); +const _quaternion$4 = /*@__PURE__*/ new Quaternion(); + +class Box3 { + + constructor( min = new Vector3( + Infinity, + Infinity, + Infinity ), max = new Vector3( - Infinity, - Infinity, - Infinity ) ) { + + this.min = min; + this.max = max; + + } + + set( min, max ) { + + this.min.copy( min ); + this.max.copy( max ); + + return this; + + } + + setFromArray( array ) { + + let minX = + Infinity; + let minY = + Infinity; + let minZ = + Infinity; + + let maxX = - Infinity; + let maxY = - Infinity; + let maxZ = - Infinity; + + for ( let i = 0, l = array.length; i < l; i += 3 ) { + + const x = array[ i ]; + const y = array[ i + 1 ]; + const z = array[ i + 2 ]; + + if ( x < minX ) minX = x; + if ( y < minY ) minY = y; + if ( z < minZ ) minZ = z; + + if ( x > maxX ) maxX = x; + if ( y > maxY ) maxY = y; + if ( z > maxZ ) maxZ = z; + + } + + this.min.set( minX, minY, minZ ); + this.max.set( maxX, maxY, maxZ ); + + return this; + + } + + setFromBufferAttribute( attribute ) { + + let minX = + Infinity; + let minY = + Infinity; + let minZ = + Infinity; + + let maxX = - Infinity; + let maxY = - Infinity; + let maxZ = - Infinity; + + for ( let i = 0, l = attribute.count; i < l; i ++ ) { + + const x = attribute.getX( i ); + const y = attribute.getY( i ); + const z = attribute.getZ( i ); + + if ( x < minX ) minX = x; + if ( y < minY ) minY = y; + if ( z < minZ ) minZ = z; + + if ( x > maxX ) maxX = x; + if ( y > maxY ) maxY = y; + if ( z > maxZ ) maxZ = z; + + } + + this.min.set( minX, minY, minZ ); + this.max.set( maxX, maxY, maxZ ); + + return this; + + } + + setFromPoints( points ) { + + this.makeEmpty(); + + for ( let i = 0, il = points.length; i < il; i ++ ) { + + this.expandByPoint( points[ i ] ); + + } + + return this; + + } + + setFromCenterAndSize( center, size ) { + + const halfSize = _vector$b.copy( size ).multiplyScalar( 0.5 ); + + this.min.copy( center ).sub( halfSize ); + this.max.copy( center ).add( halfSize ); + + return this; + + } + + setFromObject( object ) { + + this.makeEmpty(); + + return this.expandByObject( object ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( box ) { + + this.min.copy( box.min ); + this.max.copy( box.max ); + + return this; + + } + + makeEmpty() { + + this.min.x = this.min.y = this.min.z = + Infinity; + this.max.x = this.max.y = this.max.z = - Infinity; + + return this; + + } + + isEmpty() { + + // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes + + return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z ); + + } + + getCenter( target ) { + + return this.isEmpty() ? target.set( 0, 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 ); + + } + + getSize( target ) { + + return this.isEmpty() ? target.set( 0, 0, 0 ) : target.subVectors( this.max, this.min ); + + } + + expandByPoint( point ) { + + this.min.min( point ); + this.max.max( point ); + + return this; + + } + + expandByVector( vector ) { + + this.min.sub( vector ); + this.max.add( vector ); + + return this; + + } + + expandByScalar( scalar ) { + + this.min.addScalar( - scalar ); + this.max.addScalar( scalar ); + + return this; + + } + + expandByObject( object ) { + + // Computes the world-axis-aligned bounding box of an object (including its children), + // accounting for both the object's, and children's, world transforms + + object.updateWorldMatrix( false, false ); + + const geometry = object.geometry; + + if ( geometry !== undefined ) { + + if ( geometry.boundingBox === null ) { + + geometry.computeBoundingBox(); + + } + + _box$3.copy( geometry.boundingBox ); + _box$3.applyMatrix4( object.matrixWorld ); + + this.union( _box$3 ); + + } + + const children = object.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + this.expandByObject( children[ i ] ); + + } + + return this; + + } + + containsPoint( point ) { + + return point.x < this.min.x || point.x > this.max.x || + point.y < this.min.y || point.y > this.max.y || + point.z < this.min.z || point.z > this.max.z ? false : true; + + } + + containsBox( box ) { + + return this.min.x <= box.min.x && box.max.x <= this.max.x && + this.min.y <= box.min.y && box.max.y <= this.max.y && + this.min.z <= box.min.z && box.max.z <= this.max.z; + + } + + getParameter( point, target ) { + + // This can potentially have a divide by zero if the box + // has a size dimension of 0. + + return target.set( + ( point.x - this.min.x ) / ( this.max.x - this.min.x ), + ( point.y - this.min.y ) / ( this.max.y - this.min.y ), + ( point.z - this.min.z ) / ( this.max.z - this.min.z ) + ); + + } + + intersectsBox( box ) { + + // using 6 splitting planes to rule out intersections. + return box.max.x < this.min.x || box.min.x > this.max.x || + box.max.y < this.min.y || box.min.y > this.max.y || + box.max.z < this.min.z || box.min.z > this.max.z ? false : true; + + } + + intersectsSphere( sphere ) { + + // Find the point on the AABB closest to the sphere center. + this.clampPoint( sphere.center, _vector$b ); + + // If that point is inside the sphere, the AABB and sphere intersect. + return _vector$b.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius ); + + } + + intersectsPlane( plane ) { + + // We compute the minimum and maximum dot product values. If those values + // are on the same side (back or front) of the plane, then there is no intersection. + + let min, max; + + if ( plane.normal.x > 0 ) { + + min = plane.normal.x * this.min.x; + max = plane.normal.x * this.max.x; + + } else { + + min = plane.normal.x * this.max.x; + max = plane.normal.x * this.min.x; + + } + + if ( plane.normal.y > 0 ) { + + min += plane.normal.y * this.min.y; + max += plane.normal.y * this.max.y; + + } else { + + min += plane.normal.y * this.max.y; + max += plane.normal.y * this.min.y; + + } + + if ( plane.normal.z > 0 ) { + + min += plane.normal.z * this.min.z; + max += plane.normal.z * this.max.z; + + } else { + + min += plane.normal.z * this.max.z; + max += plane.normal.z * this.min.z; + + } + + return ( min <= - plane.constant && max >= - plane.constant ); + + } + + intersectsTriangle( triangle ) { + + if ( this.isEmpty() ) { + + return false; + + } + + // compute box center and extents + this.getCenter( _center ); + _extents.subVectors( this.max, _center ); + + // translate triangle to aabb origin + _v0$2.subVectors( triangle.a, _center ); + _v1$7.subVectors( triangle.b, _center ); + _v2$3.subVectors( triangle.c, _center ); + + // compute edge vectors for triangle + _f0.subVectors( _v1$7, _v0$2 ); + _f1.subVectors( _v2$3, _v1$7 ); + _f2.subVectors( _v0$2, _v2$3 ); + + // test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb + // make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation + // axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned) + let axes = [ + 0, - _f0.z, _f0.y, 0, - _f1.z, _f1.y, 0, - _f2.z, _f2.y, + _f0.z, 0, - _f0.x, _f1.z, 0, - _f1.x, _f2.z, 0, - _f2.x, + - _f0.y, _f0.x, 0, - _f1.y, _f1.x, 0, - _f2.y, _f2.x, 0 + ]; + if ( ! satForAxes( axes, _v0$2, _v1$7, _v2$3, _extents ) ) { + + return false; + + } + + // test 3 face normals from the aabb + axes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ]; + if ( ! satForAxes( axes, _v0$2, _v1$7, _v2$3, _extents ) ) { + + return false; + + } + + // finally testing the face normal of the triangle + // use already existing triangle edge vectors here + _triangleNormal.crossVectors( _f0, _f1 ); + axes = [ _triangleNormal.x, _triangleNormal.y, _triangleNormal.z ]; + + return satForAxes( axes, _v0$2, _v1$7, _v2$3, _extents ); + + } + + clampPoint( point, target ) { + + return target.copy( point ).clamp( this.min, this.max ); + + } + + distanceToPoint( point ) { + + const clampedPoint = _vector$b.copy( point ).clamp( this.min, this.max ); + + return clampedPoint.sub( point ).length(); + + } + + getBoundingSphere( target ) { + + this.getCenter( target.center ); + + target.radius = this.getSize( _vector$b ).length() * 0.5; + + return target; + + } + + intersect( box ) { + + this.min.max( box.min ); + this.max.min( box.max ); + + // ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values. + if ( this.isEmpty() ) this.makeEmpty(); + + return this; + + } + + union( box ) { + + this.min.min( box.min ); + this.max.max( box.max ); + + return this; + + } + + applyMatrix4( matrix ) { + + // transform of empty box is an empty box. + if ( this.isEmpty() ) return this; + + // NOTE: I am using a binary pattern to specify all 2^3 combinations below + _points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000 + _points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001 + _points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010 + _points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011 + _points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100 + _points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101 + _points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110 + _points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 111 + + this.setFromPoints( _points ); + + return this; + + } + + translate( offset ) { + + this.min.add( offset ); + this.max.add( offset ); + + return this; + + } + + equals( box ) { + + return box.min.equals( this.min ) && box.max.equals( this.max ); + + } + +} + +Box3.prototype.isBox3 = true; + +const _points = [ + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3() +]; + +const _vector$b = /*@__PURE__*/ new Vector3(); + +const _box$3 = /*@__PURE__*/ new Box3(); + +// triangle centered vertices + +const _v0$2 = /*@__PURE__*/ new Vector3(); +const _v1$7 = /*@__PURE__*/ new Vector3(); +const _v2$3 = /*@__PURE__*/ new Vector3(); + +// triangle edge vectors + +const _f0 = /*@__PURE__*/ new Vector3(); +const _f1 = /*@__PURE__*/ new Vector3(); +const _f2 = /*@__PURE__*/ new Vector3(); + +const _center = /*@__PURE__*/ new Vector3(); +const _extents = /*@__PURE__*/ new Vector3(); +const _triangleNormal = /*@__PURE__*/ new Vector3(); +const _testAxis = /*@__PURE__*/ new Vector3(); + +function satForAxes( axes, v0, v1, v2, extents ) { + + for ( let i = 0, j = axes.length - 3; i <= j; i += 3 ) { + + _testAxis.fromArray( axes, i ); + // project the aabb onto the seperating axis + const r = extents.x * Math.abs( _testAxis.x ) + extents.y * Math.abs( _testAxis.y ) + extents.z * Math.abs( _testAxis.z ); + // project all 3 vertices of the triangle onto the seperating axis + const p0 = v0.dot( _testAxis ); + const p1 = v1.dot( _testAxis ); + const p2 = v2.dot( _testAxis ); + // actual test, basically see if either of the most extreme of the triangle points intersects r + if ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) { + + // points of the projected triangle are outside the projected half-length of the aabb + // the axis is seperating and we can exit + return false; + + } + + } + + return true; + +} + +const _box$2 = /*@__PURE__*/ new Box3(); +const _v1$6 = /*@__PURE__*/ new Vector3(); +const _toFarthestPoint = /*@__PURE__*/ new Vector3(); +const _toPoint = /*@__PURE__*/ new Vector3(); + +class Sphere { + + constructor( center = new Vector3(), radius = - 1 ) { + + this.center = center; + this.radius = radius; + + } + + set( center, radius ) { + + this.center.copy( center ); + this.radius = radius; + + return this; + + } + + setFromPoints( points, optionalCenter ) { + + const center = this.center; + + if ( optionalCenter !== undefined ) { + + center.copy( optionalCenter ); + + } else { + + _box$2.setFromPoints( points ).getCenter( center ); + + } + + let maxRadiusSq = 0; + + for ( let i = 0, il = points.length; i < il; i ++ ) { + + maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) ); + + } + + this.radius = Math.sqrt( maxRadiusSq ); + + return this; + + } + + copy( sphere ) { + + this.center.copy( sphere.center ); + this.radius = sphere.radius; + + return this; + + } + + isEmpty() { + + return ( this.radius < 0 ); + + } + + makeEmpty() { + + this.center.set( 0, 0, 0 ); + this.radius = - 1; + + return this; + + } + + containsPoint( point ) { + + return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) ); + + } + + distanceToPoint( point ) { + + return ( point.distanceTo( this.center ) - this.radius ); + + } + + intersectsSphere( sphere ) { + + const radiusSum = this.radius + sphere.radius; + + return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum ); + + } + + intersectsBox( box ) { + + return box.intersectsSphere( this ); + + } + + intersectsPlane( plane ) { + + return Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius; + + } + + clampPoint( point, target ) { + + const deltaLengthSq = this.center.distanceToSquared( point ); + + target.copy( point ); + + if ( deltaLengthSq > ( this.radius * this.radius ) ) { + + target.sub( this.center ).normalize(); + target.multiplyScalar( this.radius ).add( this.center ); + + } + + return target; + + } + + getBoundingBox( target ) { + + if ( this.isEmpty() ) { + + // Empty sphere produces empty bounding box + target.makeEmpty(); + return target; + + } + + target.set( this.center, this.center ); + target.expandByScalar( this.radius ); + + return target; + + } + + applyMatrix4( matrix ) { + + this.center.applyMatrix4( matrix ); + this.radius = this.radius * matrix.getMaxScaleOnAxis(); + + return this; + + } + + translate( offset ) { + + this.center.add( offset ); + + return this; + + } + + expandByPoint( point ) { + + // from https://github.com/juj/MathGeoLib/blob/2940b99b99cfe575dd45103ef20f4019dee15b54/src/Geometry/Sphere.cpp#L649-L671 + + _toPoint.subVectors( point, this.center ); + + const lengthSq = _toPoint.lengthSq(); + + if ( lengthSq > ( this.radius * this.radius ) ) { + + const length = Math.sqrt( lengthSq ); + const missingRadiusHalf = ( length - this.radius ) * 0.5; + + // Nudge this sphere towards the target point. Add half the missing distance to radius, + // and the other half to position. This gives a tighter enclosure, instead of if + // the whole missing distance were just added to radius. + + this.center.add( _toPoint.multiplyScalar( missingRadiusHalf / length ) ); + this.radius += missingRadiusHalf; + + } + + return this; + + } + + union( sphere ) { + + // from https://github.com/juj/MathGeoLib/blob/2940b99b99cfe575dd45103ef20f4019dee15b54/src/Geometry/Sphere.cpp#L759-L769 + + // To enclose another sphere into this sphere, we only need to enclose two points: + // 1) Enclose the farthest point on the other sphere into this sphere. + // 2) Enclose the opposite point of the farthest point into this sphere. + + _toFarthestPoint.subVectors( sphere.center, this.center ).normalize().multiplyScalar( sphere.radius ); + + this.expandByPoint( _v1$6.copy( sphere.center ).add( _toFarthestPoint ) ); + this.expandByPoint( _v1$6.copy( sphere.center ).sub( _toFarthestPoint ) ); + + return this; + + } + + equals( sphere ) { + + return sphere.center.equals( this.center ) && ( sphere.radius === this.radius ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + +} + +const _vector$a = /*@__PURE__*/ new Vector3(); +const _segCenter = /*@__PURE__*/ new Vector3(); +const _segDir = /*@__PURE__*/ new Vector3(); +const _diff = /*@__PURE__*/ new Vector3(); + +const _edge1 = /*@__PURE__*/ new Vector3(); +const _edge2 = /*@__PURE__*/ new Vector3(); +const _normal$1 = /*@__PURE__*/ new Vector3(); + +class Ray { + + constructor( origin = new Vector3(), direction = new Vector3( 0, 0, - 1 ) ) { + + this.origin = origin; + this.direction = direction; + + } + + set( origin, direction ) { + + this.origin.copy( origin ); + this.direction.copy( direction ); + + return this; + + } + + copy( ray ) { + + this.origin.copy( ray.origin ); + this.direction.copy( ray.direction ); + + return this; + + } + + at( t, target ) { + + return target.copy( this.direction ).multiplyScalar( t ).add( this.origin ); + + } + + lookAt( v ) { + + this.direction.copy( v ).sub( this.origin ).normalize(); + + return this; + + } + + recast( t ) { + + this.origin.copy( this.at( t, _vector$a ) ); + + return this; + + } + + closestPointToPoint( point, target ) { + + target.subVectors( point, this.origin ); + + const directionDistance = target.dot( this.direction ); + + if ( directionDistance < 0 ) { + + return target.copy( this.origin ); + + } + + return target.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin ); + + } + + distanceToPoint( point ) { + + return Math.sqrt( this.distanceSqToPoint( point ) ); + + } + + distanceSqToPoint( point ) { + + const directionDistance = _vector$a.subVectors( point, this.origin ).dot( this.direction ); + + // point behind the ray + + if ( directionDistance < 0 ) { + + return this.origin.distanceToSquared( point ); + + } + + _vector$a.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin ); + + return _vector$a.distanceToSquared( point ); + + } + + distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) { + + // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h + // It returns the min distance between the ray and the segment + // defined by v0 and v1 + // It can also set two optional targets : + // - The closest point on the ray + // - The closest point on the segment + + _segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 ); + _segDir.copy( v1 ).sub( v0 ).normalize(); + _diff.copy( this.origin ).sub( _segCenter ); + + const segExtent = v0.distanceTo( v1 ) * 0.5; + const a01 = - this.direction.dot( _segDir ); + const b0 = _diff.dot( this.direction ); + const b1 = - _diff.dot( _segDir ); + const c = _diff.lengthSq(); + const det = Math.abs( 1 - a01 * a01 ); + let s0, s1, sqrDist, extDet; + + if ( det > 0 ) { + + // The ray and segment are not parallel. + + s0 = a01 * b1 - b0; + s1 = a01 * b0 - b1; + extDet = segExtent * det; + + if ( s0 >= 0 ) { + + if ( s1 >= - extDet ) { + + if ( s1 <= extDet ) { + + // region 0 + // Minimum at interior points of ray and segment. + + const invDet = 1 / det; + s0 *= invDet; + s1 *= invDet; + sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c; + + } else { + + // region 1 + + s1 = segExtent; + s0 = Math.max( 0, - ( a01 * s1 + b0 ) ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + } else { + + // region 5 + + s1 = - segExtent; + s0 = Math.max( 0, - ( a01 * s1 + b0 ) ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + } else { + + if ( s1 <= - extDet ) { + + // region 4 + + s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) ); + s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } else if ( s1 <= extDet ) { + + // region 3 + + s0 = 0; + s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent ); + sqrDist = s1 * ( s1 + 2 * b1 ) + c; + + } else { + + // region 2 + + s0 = Math.max( 0, - ( a01 * segExtent + b0 ) ); + s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + } + + } else { + + // Ray and segment are parallel. + + s1 = ( a01 > 0 ) ? - segExtent : segExtent; + s0 = Math.max( 0, - ( a01 * s1 + b0 ) ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + if ( optionalPointOnRay ) { + + optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin ); + + } + + if ( optionalPointOnSegment ) { + + optionalPointOnSegment.copy( _segDir ).multiplyScalar( s1 ).add( _segCenter ); + + } + + return sqrDist; + + } + + intersectSphere( sphere, target ) { + + _vector$a.subVectors( sphere.center, this.origin ); + const tca = _vector$a.dot( this.direction ); + const d2 = _vector$a.dot( _vector$a ) - tca * tca; + const radius2 = sphere.radius * sphere.radius; + + if ( d2 > radius2 ) return null; + + const thc = Math.sqrt( radius2 - d2 ); + + // t0 = first intersect point - entrance on front of sphere + const t0 = tca - thc; + + // t1 = second intersect point - exit point on back of sphere + const t1 = tca + thc; + + // test to see if both t0 and t1 are behind the ray - if so, return null + if ( t0 < 0 && t1 < 0 ) return null; + + // test to see if t0 is behind the ray: + // if it is, the ray is inside the sphere, so return the second exit point scaled by t1, + // in order to always return an intersect point that is in front of the ray. + if ( t0 < 0 ) return this.at( t1, target ); + + // else t0 is in front of the ray, so return the first collision point scaled by t0 + return this.at( t0, target ); + + } + + intersectsSphere( sphere ) { + + return this.distanceSqToPoint( sphere.center ) <= ( sphere.radius * sphere.radius ); + + } + + distanceToPlane( plane ) { + + const denominator = plane.normal.dot( this.direction ); + + if ( denominator === 0 ) { + + // line is coplanar, return origin + if ( plane.distanceToPoint( this.origin ) === 0 ) { + + return 0; + + } + + // Null is preferable to undefined since undefined means.... it is undefined + + return null; + + } + + const t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator; + + // Return if the ray never intersects the plane + + return t >= 0 ? t : null; + + } + + intersectPlane( plane, target ) { + + const t = this.distanceToPlane( plane ); + + if ( t === null ) { + + return null; + + } + + return this.at( t, target ); + + } + + intersectsPlane( plane ) { + + // check if the ray lies on the plane first + + const distToPoint = plane.distanceToPoint( this.origin ); + + if ( distToPoint === 0 ) { + + return true; + + } + + const denominator = plane.normal.dot( this.direction ); + + if ( denominator * distToPoint < 0 ) { + + return true; + + } + + // ray origin is behind the plane (and is pointing behind it) + + return false; + + } + + intersectBox( box, target ) { + + let tmin, tmax, tymin, tymax, tzmin, tzmax; + + const invdirx = 1 / this.direction.x, + invdiry = 1 / this.direction.y, + invdirz = 1 / this.direction.z; + + const origin = this.origin; + + if ( invdirx >= 0 ) { + + tmin = ( box.min.x - origin.x ) * invdirx; + tmax = ( box.max.x - origin.x ) * invdirx; + + } else { + + tmin = ( box.max.x - origin.x ) * invdirx; + tmax = ( box.min.x - origin.x ) * invdirx; + + } + + if ( invdiry >= 0 ) { + + tymin = ( box.min.y - origin.y ) * invdiry; + tymax = ( box.max.y - origin.y ) * invdiry; + + } else { + + tymin = ( box.max.y - origin.y ) * invdiry; + tymax = ( box.min.y - origin.y ) * invdiry; + + } + + if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null; + + // These lines also handle the case where tmin or tmax is NaN + // (result of 0 * Infinity). x !== x returns true if x is NaN + + if ( tymin > tmin || tmin !== tmin ) tmin = tymin; + + if ( tymax < tmax || tmax !== tmax ) tmax = tymax; + + if ( invdirz >= 0 ) { + + tzmin = ( box.min.z - origin.z ) * invdirz; + tzmax = ( box.max.z - origin.z ) * invdirz; + + } else { + + tzmin = ( box.max.z - origin.z ) * invdirz; + tzmax = ( box.min.z - origin.z ) * invdirz; + + } + + if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null; + + if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin; + + if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax; + + //return point closest to the ray (positive side) + + if ( tmax < 0 ) return null; + + return this.at( tmin >= 0 ? tmin : tmax, target ); + + } + + intersectsBox( box ) { + + return this.intersectBox( box, _vector$a ) !== null; + + } + + intersectTriangle( a, b, c, backfaceCulling, target ) { + + // Compute the offset origin, edges, and normal. + + // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h + + _edge1.subVectors( b, a ); + _edge2.subVectors( c, a ); + _normal$1.crossVectors( _edge1, _edge2 ); + + // Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction, + // E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by + // |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2)) + // |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q)) + // |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N) + let DdN = this.direction.dot( _normal$1 ); + let sign; + + if ( DdN > 0 ) { + + if ( backfaceCulling ) return null; + sign = 1; + + } else if ( DdN < 0 ) { + + sign = - 1; + DdN = - DdN; + + } else { + + return null; + + } + + _diff.subVectors( this.origin, a ); + const DdQxE2 = sign * this.direction.dot( _edge2.crossVectors( _diff, _edge2 ) ); + + // b1 < 0, no intersection + if ( DdQxE2 < 0 ) { + + return null; + + } + + const DdE1xQ = sign * this.direction.dot( _edge1.cross( _diff ) ); + + // b2 < 0, no intersection + if ( DdE1xQ < 0 ) { + + return null; + + } + + // b1+b2 > 1, no intersection + if ( DdQxE2 + DdE1xQ > DdN ) { + + return null; + + } + + // Line intersects triangle, check if ray does. + const QdN = - sign * _diff.dot( _normal$1 ); + + // t < 0, no intersection + if ( QdN < 0 ) { + + return null; + + } + + // Ray intersects triangle. + return this.at( QdN / DdN, target ); + + } + + applyMatrix4( matrix4 ) { + + this.origin.applyMatrix4( matrix4 ); + this.direction.transformDirection( matrix4 ); + + return this; + + } + + equals( ray ) { + + return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + +} + +class Matrix4 { + + constructor() { + + this.elements = [ + + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 + + ]; + + if ( arguments.length > 0 ) { + + console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' ); + + } + + } + + set( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) { + + const te = this.elements; + + te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14; + te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24; + te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34; + te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44; + + return this; + + } + + identity() { + + this.set( + + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + clone() { + + return new Matrix4().fromArray( this.elements ); + + } + + copy( m ) { + + const te = this.elements; + const me = m.elements; + + te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ]; + te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; + te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ]; + te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ]; + + return this; + + } + + copyPosition( m ) { + + const te = this.elements, me = m.elements; + + te[ 12 ] = me[ 12 ]; + te[ 13 ] = me[ 13 ]; + te[ 14 ] = me[ 14 ]; + + return this; + + } + + setFromMatrix3( m ) { + + const me = m.elements; + + this.set( + + me[ 0 ], me[ 3 ], me[ 6 ], 0, + me[ 1 ], me[ 4 ], me[ 7 ], 0, + me[ 2 ], me[ 5 ], me[ 8 ], 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + extractBasis( xAxis, yAxis, zAxis ) { + + xAxis.setFromMatrixColumn( this, 0 ); + yAxis.setFromMatrixColumn( this, 1 ); + zAxis.setFromMatrixColumn( this, 2 ); + + return this; + + } + + makeBasis( xAxis, yAxis, zAxis ) { + + this.set( + xAxis.x, yAxis.x, zAxis.x, 0, + xAxis.y, yAxis.y, zAxis.y, 0, + xAxis.z, yAxis.z, zAxis.z, 0, + 0, 0, 0, 1 + ); + + return this; + + } + + extractRotation( m ) { + + // this method does not support reflection matrices + + const te = this.elements; + const me = m.elements; + + const scaleX = 1 / _v1$5.setFromMatrixColumn( m, 0 ).length(); + const scaleY = 1 / _v1$5.setFromMatrixColumn( m, 1 ).length(); + const scaleZ = 1 / _v1$5.setFromMatrixColumn( m, 2 ).length(); + + te[ 0 ] = me[ 0 ] * scaleX; + te[ 1 ] = me[ 1 ] * scaleX; + te[ 2 ] = me[ 2 ] * scaleX; + te[ 3 ] = 0; + + te[ 4 ] = me[ 4 ] * scaleY; + te[ 5 ] = me[ 5 ] * scaleY; + te[ 6 ] = me[ 6 ] * scaleY; + te[ 7 ] = 0; + + te[ 8 ] = me[ 8 ] * scaleZ; + te[ 9 ] = me[ 9 ] * scaleZ; + te[ 10 ] = me[ 10 ] * scaleZ; + te[ 11 ] = 0; + + te[ 12 ] = 0; + te[ 13 ] = 0; + te[ 14 ] = 0; + te[ 15 ] = 1; + + return this; + + } + + makeRotationFromEuler( euler ) { + + if ( ! ( euler && euler.isEuler ) ) { + + console.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' ); + + } + + const te = this.elements; + + const x = euler.x, y = euler.y, z = euler.z; + const a = Math.cos( x ), b = Math.sin( x ); + const c = Math.cos( y ), d = Math.sin( y ); + const e = Math.cos( z ), f = Math.sin( z ); + + if ( euler.order === 'XYZ' ) { + + const ae = a * e, af = a * f, be = b * e, bf = b * f; + + te[ 0 ] = c * e; + te[ 4 ] = - c * f; + te[ 8 ] = d; + + te[ 1 ] = af + be * d; + te[ 5 ] = ae - bf * d; + te[ 9 ] = - b * c; + + te[ 2 ] = bf - ae * d; + te[ 6 ] = be + af * d; + te[ 10 ] = a * c; + + } else if ( euler.order === 'YXZ' ) { + + const ce = c * e, cf = c * f, de = d * e, df = d * f; + + te[ 0 ] = ce + df * b; + te[ 4 ] = de * b - cf; + te[ 8 ] = a * d; + + te[ 1 ] = a * f; + te[ 5 ] = a * e; + te[ 9 ] = - b; + + te[ 2 ] = cf * b - de; + te[ 6 ] = df + ce * b; + te[ 10 ] = a * c; + + } else if ( euler.order === 'ZXY' ) { + + const ce = c * e, cf = c * f, de = d * e, df = d * f; + + te[ 0 ] = ce - df * b; + te[ 4 ] = - a * f; + te[ 8 ] = de + cf * b; + + te[ 1 ] = cf + de * b; + te[ 5 ] = a * e; + te[ 9 ] = df - ce * b; + + te[ 2 ] = - a * d; + te[ 6 ] = b; + te[ 10 ] = a * c; + + } else if ( euler.order === 'ZYX' ) { + + const ae = a * e, af = a * f, be = b * e, bf = b * f; + + te[ 0 ] = c * e; + te[ 4 ] = be * d - af; + te[ 8 ] = ae * d + bf; + + te[ 1 ] = c * f; + te[ 5 ] = bf * d + ae; + te[ 9 ] = af * d - be; + + te[ 2 ] = - d; + te[ 6 ] = b * c; + te[ 10 ] = a * c; + + } else if ( euler.order === 'YZX' ) { + + const ac = a * c, ad = a * d, bc = b * c, bd = b * d; + + te[ 0 ] = c * e; + te[ 4 ] = bd - ac * f; + te[ 8 ] = bc * f + ad; + + te[ 1 ] = f; + te[ 5 ] = a * e; + te[ 9 ] = - b * e; + + te[ 2 ] = - d * e; + te[ 6 ] = ad * f + bc; + te[ 10 ] = ac - bd * f; + + } else if ( euler.order === 'XZY' ) { + + const ac = a * c, ad = a * d, bc = b * c, bd = b * d; + + te[ 0 ] = c * e; + te[ 4 ] = - f; + te[ 8 ] = d * e; + + te[ 1 ] = ac * f + bd; + te[ 5 ] = a * e; + te[ 9 ] = ad * f - bc; + + te[ 2 ] = bc * f - ad; + te[ 6 ] = b * e; + te[ 10 ] = bd * f + ac; + + } + + // bottom row + te[ 3 ] = 0; + te[ 7 ] = 0; + te[ 11 ] = 0; + + // last column + te[ 12 ] = 0; + te[ 13 ] = 0; + te[ 14 ] = 0; + te[ 15 ] = 1; + + return this; + + } + + makeRotationFromQuaternion( q ) { + + return this.compose( _zero, q, _one ); + + } + + lookAt( eye, target, up ) { + + const te = this.elements; + + _z.subVectors( eye, target ); + + if ( _z.lengthSq() === 0 ) { + + // eye and target are in the same position + + _z.z = 1; + + } + + _z.normalize(); + _x.crossVectors( up, _z ); + + if ( _x.lengthSq() === 0 ) { + + // up and z are parallel + + if ( Math.abs( up.z ) === 1 ) { + + _z.x += 0.0001; + + } else { + + _z.z += 0.0001; + + } + + _z.normalize(); + _x.crossVectors( up, _z ); + + } + + _x.normalize(); + _y.crossVectors( _z, _x ); + + te[ 0 ] = _x.x; te[ 4 ] = _y.x; te[ 8 ] = _z.x; + te[ 1 ] = _x.y; te[ 5 ] = _y.y; te[ 9 ] = _z.y; + te[ 2 ] = _x.z; te[ 6 ] = _y.z; te[ 10 ] = _z.z; + + return this; + + } + + multiply( m, n ) { + + if ( n !== undefined ) { + + console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' ); + return this.multiplyMatrices( m, n ); + + } + + return this.multiplyMatrices( this, m ); + + } + + premultiply( m ) { + + return this.multiplyMatrices( m, this ); + + } + + multiplyMatrices( a, b ) { + + const ae = a.elements; + const be = b.elements; + const te = this.elements; + + const a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ]; + const a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ]; + const a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ]; + const a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ]; + + const b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ]; + const b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ]; + const b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ]; + const b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ]; + + te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41; + te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42; + te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43; + te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44; + + te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41; + te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42; + te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43; + te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44; + + te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41; + te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42; + te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43; + te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44; + + te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41; + te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42; + te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43; + te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44; + + return this; + + } + + multiplyScalar( s ) { + + const te = this.elements; + + te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s; + te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s; + te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s; + te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s; + + return this; + + } + + determinant() { + + const te = this.elements; + + const n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ]; + const n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ]; + const n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ]; + const n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ]; + + //TODO: make this more efficient + //( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm ) + + return ( + n41 * ( + + n14 * n23 * n32 + - n13 * n24 * n32 + - n14 * n22 * n33 + + n12 * n24 * n33 + + n13 * n22 * n34 + - n12 * n23 * n34 + ) + + n42 * ( + + n11 * n23 * n34 + - n11 * n24 * n33 + + n14 * n21 * n33 + - n13 * n21 * n34 + + n13 * n24 * n31 + - n14 * n23 * n31 + ) + + n43 * ( + + n11 * n24 * n32 + - n11 * n22 * n34 + - n14 * n21 * n32 + + n12 * n21 * n34 + + n14 * n22 * n31 + - n12 * n24 * n31 + ) + + n44 * ( + - n13 * n22 * n31 + - n11 * n23 * n32 + + n11 * n22 * n33 + + n13 * n21 * n32 + - n12 * n21 * n33 + + n12 * n23 * n31 + ) + + ); + + } + + transpose() { + + const te = this.elements; + let tmp; + + tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp; + tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp; + tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp; + + tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp; + tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp; + tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp; + + return this; + + } + + setPosition( x, y, z ) { + + const te = this.elements; + + if ( x.isVector3 ) { + + te[ 12 ] = x.x; + te[ 13 ] = x.y; + te[ 14 ] = x.z; + + } else { + + te[ 12 ] = x; + te[ 13 ] = y; + te[ 14 ] = z; + + } + + return this; + + } + + invert() { + + // based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm + const te = this.elements, + + n11 = te[ 0 ], n21 = te[ 1 ], n31 = te[ 2 ], n41 = te[ 3 ], + n12 = te[ 4 ], n22 = te[ 5 ], n32 = te[ 6 ], n42 = te[ 7 ], + n13 = te[ 8 ], n23 = te[ 9 ], n33 = te[ 10 ], n43 = te[ 11 ], + n14 = te[ 12 ], n24 = te[ 13 ], n34 = te[ 14 ], n44 = te[ 15 ], + + t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44, + t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44, + t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44, + t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34; + + const det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14; + + if ( det === 0 ) return this.set( 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ); + + const detInv = 1 / det; + + te[ 0 ] = t11 * detInv; + te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv; + te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv; + te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv; + + te[ 4 ] = t12 * detInv; + te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv; + te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv; + te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv; + + te[ 8 ] = t13 * detInv; + te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv; + te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv; + te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv; + + te[ 12 ] = t14 * detInv; + te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv; + te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv; + te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv; + + return this; + + } + + scale( v ) { + + const te = this.elements; + const x = v.x, y = v.y, z = v.z; + + te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z; + te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z; + te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z; + te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z; + + return this; + + } + + getMaxScaleOnAxis() { + + const te = this.elements; + + const scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ]; + const scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ]; + const scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ]; + + return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) ); + + } + + makeTranslation( x, y, z ) { + + this.set( + + 1, 0, 0, x, + 0, 1, 0, y, + 0, 0, 1, z, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeRotationX( theta ) { + + const c = Math.cos( theta ), s = Math.sin( theta ); + + this.set( + + 1, 0, 0, 0, + 0, c, - s, 0, + 0, s, c, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeRotationY( theta ) { + + const c = Math.cos( theta ), s = Math.sin( theta ); + + this.set( + + c, 0, s, 0, + 0, 1, 0, 0, + - s, 0, c, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeRotationZ( theta ) { + + const c = Math.cos( theta ), s = Math.sin( theta ); + + this.set( + + c, - s, 0, 0, + s, c, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeRotationAxis( axis, angle ) { + + // Based on http://www.gamedev.net/reference/articles/article1199.asp + + const c = Math.cos( angle ); + const s = Math.sin( angle ); + const t = 1 - c; + const x = axis.x, y = axis.y, z = axis.z; + const tx = t * x, ty = t * y; + + this.set( + + tx * x + c, tx * y - s * z, tx * z + s * y, 0, + tx * y + s * z, ty * y + c, ty * z - s * x, 0, + tx * z - s * y, ty * z + s * x, t * z * z + c, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeScale( x, y, z ) { + + this.set( + + x, 0, 0, 0, + 0, y, 0, 0, + 0, 0, z, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeShear( xy, xz, yx, yz, zx, zy ) { + + this.set( + + 1, yx, zx, 0, + xy, 1, zy, 0, + xz, yz, 1, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + compose( position, quaternion, scale ) { + + const te = this.elements; + + const x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w; + const x2 = x + x, y2 = y + y, z2 = z + z; + const xx = x * x2, xy = x * y2, xz = x * z2; + const yy = y * y2, yz = y * z2, zz = z * z2; + const wx = w * x2, wy = w * y2, wz = w * z2; + + const sx = scale.x, sy = scale.y, sz = scale.z; + + te[ 0 ] = ( 1 - ( yy + zz ) ) * sx; + te[ 1 ] = ( xy + wz ) * sx; + te[ 2 ] = ( xz - wy ) * sx; + te[ 3 ] = 0; + + te[ 4 ] = ( xy - wz ) * sy; + te[ 5 ] = ( 1 - ( xx + zz ) ) * sy; + te[ 6 ] = ( yz + wx ) * sy; + te[ 7 ] = 0; + + te[ 8 ] = ( xz + wy ) * sz; + te[ 9 ] = ( yz - wx ) * sz; + te[ 10 ] = ( 1 - ( xx + yy ) ) * sz; + te[ 11 ] = 0; + + te[ 12 ] = position.x; + te[ 13 ] = position.y; + te[ 14 ] = position.z; + te[ 15 ] = 1; + + return this; + + } + + decompose( position, quaternion, scale ) { + + const te = this.elements; + + let sx = _v1$5.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length(); + const sy = _v1$5.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length(); + const sz = _v1$5.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length(); + + // if determine is negative, we need to invert one scale + const det = this.determinant(); + if ( det < 0 ) sx = - sx; + + position.x = te[ 12 ]; + position.y = te[ 13 ]; + position.z = te[ 14 ]; + + // scale the rotation part + _m1$2.copy( this ); + + const invSX = 1 / sx; + const invSY = 1 / sy; + const invSZ = 1 / sz; + + _m1$2.elements[ 0 ] *= invSX; + _m1$2.elements[ 1 ] *= invSX; + _m1$2.elements[ 2 ] *= invSX; + + _m1$2.elements[ 4 ] *= invSY; + _m1$2.elements[ 5 ] *= invSY; + _m1$2.elements[ 6 ] *= invSY; + + _m1$2.elements[ 8 ] *= invSZ; + _m1$2.elements[ 9 ] *= invSZ; + _m1$2.elements[ 10 ] *= invSZ; + + quaternion.setFromRotationMatrix( _m1$2 ); + + scale.x = sx; + scale.y = sy; + scale.z = sz; + + return this; + + } + + makePerspective( left, right, top, bottom, near, far ) { + + if ( far === undefined ) { + + console.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' ); + + } + + const te = this.elements; + const x = 2 * near / ( right - left ); + const y = 2 * near / ( top - bottom ); + + const a = ( right + left ) / ( right - left ); + const b = ( top + bottom ) / ( top - bottom ); + const c = - ( far + near ) / ( far - near ); + const d = - 2 * far * near / ( far - near ); + + te[ 0 ] = x; te[ 4 ] = 0; te[ 8 ] = a; te[ 12 ] = 0; + te[ 1 ] = 0; te[ 5 ] = y; te[ 9 ] = b; te[ 13 ] = 0; + te[ 2 ] = 0; te[ 6 ] = 0; te[ 10 ] = c; te[ 14 ] = d; + te[ 3 ] = 0; te[ 7 ] = 0; te[ 11 ] = - 1; te[ 15 ] = 0; + + return this; + + } + + makeOrthographic( left, right, top, bottom, near, far ) { + + const te = this.elements; + const w = 1.0 / ( right - left ); + const h = 1.0 / ( top - bottom ); + const p = 1.0 / ( far - near ); + + const x = ( right + left ) * w; + const y = ( top + bottom ) * h; + const z = ( far + near ) * p; + + te[ 0 ] = 2 * w; te[ 4 ] = 0; te[ 8 ] = 0; te[ 12 ] = - x; + te[ 1 ] = 0; te[ 5 ] = 2 * h; te[ 9 ] = 0; te[ 13 ] = - y; + te[ 2 ] = 0; te[ 6 ] = 0; te[ 10 ] = - 2 * p; te[ 14 ] = - z; + te[ 3 ] = 0; te[ 7 ] = 0; te[ 11 ] = 0; te[ 15 ] = 1; + + return this; + + } + + equals( matrix ) { + + const te = this.elements; + const me = matrix.elements; + + for ( let i = 0; i < 16; i ++ ) { + + if ( te[ i ] !== me[ i ] ) return false; + + } + + return true; + + } + + fromArray( array, offset = 0 ) { + + for ( let i = 0; i < 16; i ++ ) { + + this.elements[ i ] = array[ i + offset ]; + + } + + return this; + + } + + toArray( array = [], offset = 0 ) { + + const te = this.elements; + + array[ offset ] = te[ 0 ]; + array[ offset + 1 ] = te[ 1 ]; + array[ offset + 2 ] = te[ 2 ]; + array[ offset + 3 ] = te[ 3 ]; + + array[ offset + 4 ] = te[ 4 ]; + array[ offset + 5 ] = te[ 5 ]; + array[ offset + 6 ] = te[ 6 ]; + array[ offset + 7 ] = te[ 7 ]; + + array[ offset + 8 ] = te[ 8 ]; + array[ offset + 9 ] = te[ 9 ]; + array[ offset + 10 ] = te[ 10 ]; + array[ offset + 11 ] = te[ 11 ]; + + array[ offset + 12 ] = te[ 12 ]; + array[ offset + 13 ] = te[ 13 ]; + array[ offset + 14 ] = te[ 14 ]; + array[ offset + 15 ] = te[ 15 ]; + + return array; + + } + +} + +Matrix4.prototype.isMatrix4 = true; + +const _v1$5 = /*@__PURE__*/ new Vector3(); +const _m1$2 = /*@__PURE__*/ new Matrix4(); +const _zero = /*@__PURE__*/ new Vector3( 0, 0, 0 ); +const _one = /*@__PURE__*/ new Vector3( 1, 1, 1 ); +const _x = /*@__PURE__*/ new Vector3(); +const _y = /*@__PURE__*/ new Vector3(); +const _z = /*@__PURE__*/ new Vector3(); + +const _matrix$1 = /*@__PURE__*/ new Matrix4(); +const _quaternion$3 = /*@__PURE__*/ new Quaternion(); + +class Euler { + + constructor( x = 0, y = 0, z = 0, order = Euler.DefaultOrder ) { + + this._x = x; + this._y = y; + this._z = z; + this._order = order; + + } + + get x() { + + return this._x; + + } + + set x( value ) { + + this._x = value; + this._onChangeCallback(); + + } + + get y() { + + return this._y; + + } + + set y( value ) { + + this._y = value; + this._onChangeCallback(); + + } + + get z() { + + return this._z; + + } + + set z( value ) { + + this._z = value; + this._onChangeCallback(); + + } + + get order() { + + return this._order; + + } + + set order( value ) { + + this._order = value; + this._onChangeCallback(); + + } + + set( x, y, z, order = this._order ) { + + this._x = x; + this._y = y; + this._z = z; + this._order = order; + + this._onChangeCallback(); + + return this; + + } + + clone() { + + return new this.constructor( this._x, this._y, this._z, this._order ); + + } + + copy( euler ) { + + this._x = euler._x; + this._y = euler._y; + this._z = euler._z; + this._order = euler._order; + + this._onChangeCallback(); + + return this; + + } + + setFromRotationMatrix( m, order = this._order, update = true ) { + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + const te = m.elements; + const m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ]; + const m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ]; + const m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ]; + + switch ( order ) { + + case 'XYZ': + + this._y = Math.asin( clamp( m13, - 1, 1 ) ); + + if ( Math.abs( m13 ) < 0.9999999 ) { + + this._x = Math.atan2( - m23, m33 ); + this._z = Math.atan2( - m12, m11 ); + + } else { + + this._x = Math.atan2( m32, m22 ); + this._z = 0; + + } + + break; + + case 'YXZ': + + this._x = Math.asin( - clamp( m23, - 1, 1 ) ); + + if ( Math.abs( m23 ) < 0.9999999 ) { + + this._y = Math.atan2( m13, m33 ); + this._z = Math.atan2( m21, m22 ); + + } else { + + this._y = Math.atan2( - m31, m11 ); + this._z = 0; + + } + + break; + + case 'ZXY': + + this._x = Math.asin( clamp( m32, - 1, 1 ) ); + + if ( Math.abs( m32 ) < 0.9999999 ) { + + this._y = Math.atan2( - m31, m33 ); + this._z = Math.atan2( - m12, m22 ); + + } else { + + this._y = 0; + this._z = Math.atan2( m21, m11 ); + + } + + break; + + case 'ZYX': + + this._y = Math.asin( - clamp( m31, - 1, 1 ) ); + + if ( Math.abs( m31 ) < 0.9999999 ) { + + this._x = Math.atan2( m32, m33 ); + this._z = Math.atan2( m21, m11 ); + + } else { + + this._x = 0; + this._z = Math.atan2( - m12, m22 ); + + } + + break; + + case 'YZX': + + this._z = Math.asin( clamp( m21, - 1, 1 ) ); + + if ( Math.abs( m21 ) < 0.9999999 ) { + + this._x = Math.atan2( - m23, m22 ); + this._y = Math.atan2( - m31, m11 ); + + } else { + + this._x = 0; + this._y = Math.atan2( m13, m33 ); + + } + + break; + + case 'XZY': + + this._z = Math.asin( - clamp( m12, - 1, 1 ) ); + + if ( Math.abs( m12 ) < 0.9999999 ) { + + this._x = Math.atan2( m32, m22 ); + this._y = Math.atan2( m13, m11 ); + + } else { + + this._x = Math.atan2( - m23, m33 ); + this._y = 0; + + } + + break; + + default: + + console.warn( 'THREE.Euler: .setFromRotationMatrix() encountered an unknown order: ' + order ); + + } + + this._order = order; + + if ( update === true ) this._onChangeCallback(); + + return this; + + } + + setFromQuaternion( q, order, update ) { + + _matrix$1.makeRotationFromQuaternion( q ); + + return this.setFromRotationMatrix( _matrix$1, order, update ); + + } + + setFromVector3( v, order = this._order ) { + + return this.set( v.x, v.y, v.z, order ); + + } + + reorder( newOrder ) { + + // WARNING: this discards revolution information -bhouston + + _quaternion$3.setFromEuler( this ); + + return this.setFromQuaternion( _quaternion$3, newOrder ); + + } + + equals( euler ) { + + return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order ); + + } + + fromArray( array ) { + + this._x = array[ 0 ]; + this._y = array[ 1 ]; + this._z = array[ 2 ]; + if ( array[ 3 ] !== undefined ) this._order = array[ 3 ]; + + this._onChangeCallback(); + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this._x; + array[ offset + 1 ] = this._y; + array[ offset + 2 ] = this._z; + array[ offset + 3 ] = this._order; + + return array; + + } + + toVector3( optionalResult ) { + + if ( optionalResult ) { + + return optionalResult.set( this._x, this._y, this._z ); + + } else { + + return new Vector3( this._x, this._y, this._z ); + + } + + } + + _onChange( callback ) { + + this._onChangeCallback = callback; + + return this; + + } + + _onChangeCallback() {} + +} + +Euler.prototype.isEuler = true; + +Euler.DefaultOrder = 'XYZ'; +Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ]; + +class Layers { + + constructor() { + + this.mask = 1 | 0; + + } + + set( channel ) { + + this.mask = 1 << channel | 0; + + } + + enable( channel ) { + + this.mask |= 1 << channel | 0; + + } + + enableAll() { + + this.mask = 0xffffffff | 0; + + } + + toggle( channel ) { + + this.mask ^= 1 << channel | 0; + + } + + disable( channel ) { + + this.mask &= ~ ( 1 << channel | 0 ); + + } + + disableAll() { + + this.mask = 0; + + } + + test( layers ) { + + return ( this.mask & layers.mask ) !== 0; + + } + +} + +let _object3DId = 0; + +const _v1$4 = /*@__PURE__*/ new Vector3(); +const _q1 = /*@__PURE__*/ new Quaternion(); +const _m1$1 = /*@__PURE__*/ new Matrix4(); +const _target = /*@__PURE__*/ new Vector3(); + +const _position$3 = /*@__PURE__*/ new Vector3(); +const _scale$2 = /*@__PURE__*/ new Vector3(); +const _quaternion$2 = /*@__PURE__*/ new Quaternion(); + +const _xAxis = /*@__PURE__*/ new Vector3( 1, 0, 0 ); +const _yAxis = /*@__PURE__*/ new Vector3( 0, 1, 0 ); +const _zAxis = /*@__PURE__*/ new Vector3( 0, 0, 1 ); + +const _addedEvent = { type: 'added' }; +const _removedEvent = { type: 'removed' }; + +class Object3D extends EventDispatcher { + + constructor() { + + super(); + + Object.defineProperty( this, 'id', { value: _object3DId ++ } ); + + this.uuid = generateUUID(); + + this.name = ''; + this.type = 'Object3D'; + + this.parent = null; + this.children = []; + + this.up = Object3D.DefaultUp.clone(); + + const position = new Vector3(); + const rotation = new Euler(); + const quaternion = new Quaternion(); + const scale = new Vector3( 1, 1, 1 ); + + function onRotationChange() { + + quaternion.setFromEuler( rotation, false ); + + } + + function onQuaternionChange() { + + rotation.setFromQuaternion( quaternion, undefined, false ); + + } + + rotation._onChange( onRotationChange ); + quaternion._onChange( onQuaternionChange ); + + Object.defineProperties( this, { + position: { + configurable: true, + enumerable: true, + value: position + }, + rotation: { + configurable: true, + enumerable: true, + value: rotation + }, + quaternion: { + configurable: true, + enumerable: true, + value: quaternion + }, + scale: { + configurable: true, + enumerable: true, + value: scale + }, + modelViewMatrix: { + value: new Matrix4() + }, + normalMatrix: { + value: new Matrix3() + } + } ); + + this.matrix = new Matrix4(); + this.matrixWorld = new Matrix4(); + + this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate; + this.matrixWorldNeedsUpdate = false; + + this.layers = new Layers(); + this.visible = true; + + this.castShadow = false; + this.receiveShadow = false; + + this.frustumCulled = true; + this.renderOrder = 0; + + this.animations = []; + + this.userData = {}; + + } + + onBeforeRender( /* renderer, scene, camera, geometry, material, group */ ) {} + + onAfterRender( /* renderer, scene, camera, geometry, material, group */ ) {} + + applyMatrix4( matrix ) { + + if ( this.matrixAutoUpdate ) this.updateMatrix(); + + this.matrix.premultiply( matrix ); + + this.matrix.decompose( this.position, this.quaternion, this.scale ); + + } + + applyQuaternion( q ) { + + this.quaternion.premultiply( q ); + + return this; + + } + + setRotationFromAxisAngle( axis, angle ) { + + // assumes axis is normalized + + this.quaternion.setFromAxisAngle( axis, angle ); + + } + + setRotationFromEuler( euler ) { + + this.quaternion.setFromEuler( euler, true ); + + } + + setRotationFromMatrix( m ) { + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + this.quaternion.setFromRotationMatrix( m ); + + } + + setRotationFromQuaternion( q ) { + + // assumes q is normalized + + this.quaternion.copy( q ); + + } + + rotateOnAxis( axis, angle ) { + + // rotate object on axis in object space + // axis is assumed to be normalized + + _q1.setFromAxisAngle( axis, angle ); + + this.quaternion.multiply( _q1 ); + + return this; + + } + + rotateOnWorldAxis( axis, angle ) { + + // rotate object on axis in world space + // axis is assumed to be normalized + // method assumes no rotated parent + + _q1.setFromAxisAngle( axis, angle ); + + this.quaternion.premultiply( _q1 ); + + return this; + + } + + rotateX( angle ) { + + return this.rotateOnAxis( _xAxis, angle ); + + } + + rotateY( angle ) { + + return this.rotateOnAxis( _yAxis, angle ); + + } + + rotateZ( angle ) { + + return this.rotateOnAxis( _zAxis, angle ); + + } + + translateOnAxis( axis, distance ) { + + // translate object by distance along axis in object space + // axis is assumed to be normalized + + _v1$4.copy( axis ).applyQuaternion( this.quaternion ); + + this.position.add( _v1$4.multiplyScalar( distance ) ); + + return this; + + } + + translateX( distance ) { + + return this.translateOnAxis( _xAxis, distance ); + + } + + translateY( distance ) { + + return this.translateOnAxis( _yAxis, distance ); + + } + + translateZ( distance ) { + + return this.translateOnAxis( _zAxis, distance ); + + } + + localToWorld( vector ) { + + return vector.applyMatrix4( this.matrixWorld ); + + } + + worldToLocal( vector ) { + + return vector.applyMatrix4( _m1$1.copy( this.matrixWorld ).invert() ); + + } + + lookAt( x, y, z ) { + + // This method does not support objects having non-uniformly-scaled parent(s) + + if ( x.isVector3 ) { + + _target.copy( x ); + + } else { + + _target.set( x, y, z ); + + } + + const parent = this.parent; + + this.updateWorldMatrix( true, false ); + + _position$3.setFromMatrixPosition( this.matrixWorld ); + + if ( this.isCamera || this.isLight ) { + + _m1$1.lookAt( _position$3, _target, this.up ); + + } else { + + _m1$1.lookAt( _target, _position$3, this.up ); + + } + + this.quaternion.setFromRotationMatrix( _m1$1 ); + + if ( parent ) { + + _m1$1.extractRotation( parent.matrixWorld ); + _q1.setFromRotationMatrix( _m1$1 ); + this.quaternion.premultiply( _q1.invert() ); + + } + + } + + add( object ) { + + if ( arguments.length > 1 ) { + + for ( let i = 0; i < arguments.length; i ++ ) { + + this.add( arguments[ i ] ); + + } + + return this; + + } + + if ( object === this ) { + + console.error( 'THREE.Object3D.add: object can\'t be added as a child of itself.', object ); + return this; + + } + + if ( object && object.isObject3D ) { + + if ( object.parent !== null ) { + + object.parent.remove( object ); + + } + + object.parent = this; + this.children.push( object ); + + object.dispatchEvent( _addedEvent ); + + } else { + + console.error( 'THREE.Object3D.add: object not an instance of THREE.Object3D.', object ); + + } + + return this; + + } + + remove( object ) { + + if ( arguments.length > 1 ) { + + for ( let i = 0; i < arguments.length; i ++ ) { + + this.remove( arguments[ i ] ); + + } + + return this; + + } + + const index = this.children.indexOf( object ); + + if ( index !== - 1 ) { + + object.parent = null; + this.children.splice( index, 1 ); + + object.dispatchEvent( _removedEvent ); + + } + + return this; + + } + + removeFromParent() { + + const parent = this.parent; + + if ( parent !== null ) { + + parent.remove( this ); + + } + + return this; + + } + + clear() { + + for ( let i = 0; i < this.children.length; i ++ ) { + + const object = this.children[ i ]; + + object.parent = null; + + object.dispatchEvent( _removedEvent ); + + } + + this.children.length = 0; + + return this; + + + } + + attach( object ) { + + // adds object as a child of this, while maintaining the object's world transform + + this.updateWorldMatrix( true, false ); + + _m1$1.copy( this.matrixWorld ).invert(); + + if ( object.parent !== null ) { + + object.parent.updateWorldMatrix( true, false ); + + _m1$1.multiply( object.parent.matrixWorld ); + + } + + object.applyMatrix4( _m1$1 ); + + this.add( object ); + + object.updateWorldMatrix( false, true ); + + return this; + + } + + getObjectById( id ) { + + return this.getObjectByProperty( 'id', id ); + + } + + getObjectByName( name ) { + + return this.getObjectByProperty( 'name', name ); + + } + + getObjectByProperty( name, value ) { + + if ( this[ name ] === value ) return this; + + for ( let i = 0, l = this.children.length; i < l; i ++ ) { + + const child = this.children[ i ]; + const object = child.getObjectByProperty( name, value ); + + if ( object !== undefined ) { + + return object; + + } + + } + + return undefined; + + } + + getWorldPosition( target ) { + + this.updateWorldMatrix( true, false ); + + return target.setFromMatrixPosition( this.matrixWorld ); + + } + + getWorldQuaternion( target ) { + + this.updateWorldMatrix( true, false ); + + this.matrixWorld.decompose( _position$3, target, _scale$2 ); + + return target; + + } + + getWorldScale( target ) { + + this.updateWorldMatrix( true, false ); + + this.matrixWorld.decompose( _position$3, _quaternion$2, target ); + + return target; + + } + + getWorldDirection( target ) { + + this.updateWorldMatrix( true, false ); + + const e = this.matrixWorld.elements; + + return target.set( e[ 8 ], e[ 9 ], e[ 10 ] ).normalize(); + + } + + raycast() {} + + traverse( callback ) { + + callback( this ); + + const children = this.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].traverse( callback ); + + } + + } + + traverseVisible( callback ) { + + if ( this.visible === false ) return; + + callback( this ); + + const children = this.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].traverseVisible( callback ); + + } + + } + + traverseAncestors( callback ) { + + const parent = this.parent; + + if ( parent !== null ) { + + callback( parent ); + + parent.traverseAncestors( callback ); + + } + + } + + updateMatrix() { + + this.matrix.compose( this.position, this.quaternion, this.scale ); + + this.matrixWorldNeedsUpdate = true; + + } + + updateMatrixWorld( force ) { + + if ( this.matrixAutoUpdate ) this.updateMatrix(); + + if ( this.matrixWorldNeedsUpdate || force ) { + + if ( this.parent === null ) { + + this.matrixWorld.copy( this.matrix ); + + } else { + + this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix ); + + } + + this.matrixWorldNeedsUpdate = false; + + force = true; + + } + + // update children + + const children = this.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].updateMatrixWorld( force ); + + } + + } + + updateWorldMatrix( updateParents, updateChildren ) { + + const parent = this.parent; + + if ( updateParents === true && parent !== null ) { + + parent.updateWorldMatrix( true, false ); + + } + + if ( this.matrixAutoUpdate ) this.updateMatrix(); + + if ( this.parent === null ) { + + this.matrixWorld.copy( this.matrix ); + + } else { + + this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix ); + + } + + // update children + + if ( updateChildren === true ) { + + const children = this.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].updateWorldMatrix( false, true ); + + } + + } + + } + + toJSON( meta ) { + + // meta is a string when called from JSON.stringify + const isRootObject = ( meta === undefined || typeof meta === 'string' ); + + const output = {}; + + // meta is a hash used to collect geometries, materials. + // not providing it implies that this is the root object + // being serialized. + if ( isRootObject ) { + + // initialize meta obj + meta = { + geometries: {}, + materials: {}, + textures: {}, + images: {}, + shapes: {}, + skeletons: {}, + animations: {} + }; + + output.metadata = { + version: 4.5, + type: 'Object', + generator: 'Object3D.toJSON' + }; + + } + + // standard Object3D serialization + + const object = {}; + + object.uuid = this.uuid; + object.type = this.type; + + if ( this.name !== '' ) object.name = this.name; + if ( this.castShadow === true ) object.castShadow = true; + if ( this.receiveShadow === true ) object.receiveShadow = true; + if ( this.visible === false ) object.visible = false; + if ( this.frustumCulled === false ) object.frustumCulled = false; + if ( this.renderOrder !== 0 ) object.renderOrder = this.renderOrder; + if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData; + + object.layers = this.layers.mask; + object.matrix = this.matrix.toArray(); + + if ( this.matrixAutoUpdate === false ) object.matrixAutoUpdate = false; + + // object specific properties + + if ( this.isInstancedMesh ) { + + object.type = 'InstancedMesh'; + object.count = this.count; + object.instanceMatrix = this.instanceMatrix.toJSON(); + if ( this.instanceColor !== null ) object.instanceColor = this.instanceColor.toJSON(); + + } + + // + + function serialize( library, element ) { + + if ( library[ element.uuid ] === undefined ) { + + library[ element.uuid ] = element.toJSON( meta ); + + } + + return element.uuid; + + } + + if ( this.isScene ) { + + if ( this.background ) { + + if ( this.background.isColor ) { + + object.background = this.background.toJSON(); + + } else if ( this.background.isTexture ) { + + object.background = this.background.toJSON( meta ).uuid; + + } + + } + + if ( this.environment && this.environment.isTexture ) { + + object.environment = this.environment.toJSON( meta ).uuid; + + } + + } else if ( this.isMesh || this.isLine || this.isPoints ) { + + object.geometry = serialize( meta.geometries, this.geometry ); + + const parameters = this.geometry.parameters; + + if ( parameters !== undefined && parameters.shapes !== undefined ) { + + const shapes = parameters.shapes; + + if ( Array.isArray( shapes ) ) { + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + + serialize( meta.shapes, shape ); + + } + + } else { + + serialize( meta.shapes, shapes ); + + } + + } + + } + + if ( this.isSkinnedMesh ) { + + object.bindMode = this.bindMode; + object.bindMatrix = this.bindMatrix.toArray(); + + if ( this.skeleton !== undefined ) { + + serialize( meta.skeletons, this.skeleton ); + + object.skeleton = this.skeleton.uuid; + + } + + } + + if ( this.material !== undefined ) { + + if ( Array.isArray( this.material ) ) { + + const uuids = []; + + for ( let i = 0, l = this.material.length; i < l; i ++ ) { + + uuids.push( serialize( meta.materials, this.material[ i ] ) ); + + } + + object.material = uuids; + + } else { + + object.material = serialize( meta.materials, this.material ); + + } + + } + + // + + if ( this.children.length > 0 ) { + + object.children = []; + + for ( let i = 0; i < this.children.length; i ++ ) { + + object.children.push( this.children[ i ].toJSON( meta ).object ); + + } + + } + + // + + if ( this.animations.length > 0 ) { + + object.animations = []; + + for ( let i = 0; i < this.animations.length; i ++ ) { + + const animation = this.animations[ i ]; + + object.animations.push( serialize( meta.animations, animation ) ); + + } + + } + + if ( isRootObject ) { + + const geometries = extractFromCache( meta.geometries ); + const materials = extractFromCache( meta.materials ); + const textures = extractFromCache( meta.textures ); + const images = extractFromCache( meta.images ); + const shapes = extractFromCache( meta.shapes ); + const skeletons = extractFromCache( meta.skeletons ); + const animations = extractFromCache( meta.animations ); + + if ( geometries.length > 0 ) output.geometries = geometries; + if ( materials.length > 0 ) output.materials = materials; + if ( textures.length > 0 ) output.textures = textures; + if ( images.length > 0 ) output.images = images; + if ( shapes.length > 0 ) output.shapes = shapes; + if ( skeletons.length > 0 ) output.skeletons = skeletons; + if ( animations.length > 0 ) output.animations = animations; + + } + + output.object = object; + + return output; + + // extract data from the cache hash + // remove metadata on each item + // and return as array + function extractFromCache( cache ) { + + const values = []; + for ( const key in cache ) { + + const data = cache[ key ]; + delete data.metadata; + values.push( data ); + + } + + return values; + + } + + } + + clone( recursive ) { + + return new this.constructor().copy( this, recursive ); + + } + + copy( source, recursive = true ) { + + this.name = source.name; + + this.up.copy( source.up ); + + this.position.copy( source.position ); + this.rotation.order = source.rotation.order; + this.quaternion.copy( source.quaternion ); + this.scale.copy( source.scale ); + + this.matrix.copy( source.matrix ); + this.matrixWorld.copy( source.matrixWorld ); + + this.matrixAutoUpdate = source.matrixAutoUpdate; + this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate; + + this.layers.mask = source.layers.mask; + this.visible = source.visible; + + this.castShadow = source.castShadow; + this.receiveShadow = source.receiveShadow; + + this.frustumCulled = source.frustumCulled; + this.renderOrder = source.renderOrder; + + this.userData = JSON.parse( JSON.stringify( source.userData ) ); + + if ( recursive === true ) { + + for ( let i = 0; i < source.children.length; i ++ ) { + + const child = source.children[ i ]; + this.add( child.clone() ); + + } + + } + + return this; + + } + +} + +Object3D.DefaultUp = new Vector3( 0, 1, 0 ); +Object3D.DefaultMatrixAutoUpdate = true; + +Object3D.prototype.isObject3D = true; + +const _v0$1 = /*@__PURE__*/ new Vector3(); +const _v1$3 = /*@__PURE__*/ new Vector3(); +const _v2$2 = /*@__PURE__*/ new Vector3(); +const _v3$1 = /*@__PURE__*/ new Vector3(); + +const _vab = /*@__PURE__*/ new Vector3(); +const _vac = /*@__PURE__*/ new Vector3(); +const _vbc = /*@__PURE__*/ new Vector3(); +const _vap = /*@__PURE__*/ new Vector3(); +const _vbp = /*@__PURE__*/ new Vector3(); +const _vcp = /*@__PURE__*/ new Vector3(); + +class Triangle { + + constructor( a = new Vector3(), b = new Vector3(), c = new Vector3() ) { + + this.a = a; + this.b = b; + this.c = c; + + } + + static getNormal( a, b, c, target ) { + + target.subVectors( c, b ); + _v0$1.subVectors( a, b ); + target.cross( _v0$1 ); + + const targetLengthSq = target.lengthSq(); + if ( targetLengthSq > 0 ) { + + return target.multiplyScalar( 1 / Math.sqrt( targetLengthSq ) ); + + } + + return target.set( 0, 0, 0 ); + + } + + // static/instance method to calculate barycentric coordinates + // based on: http://www.blackpawn.com/texts/pointinpoly/default.html + static getBarycoord( point, a, b, c, target ) { + + _v0$1.subVectors( c, a ); + _v1$3.subVectors( b, a ); + _v2$2.subVectors( point, a ); + + const dot00 = _v0$1.dot( _v0$1 ); + const dot01 = _v0$1.dot( _v1$3 ); + const dot02 = _v0$1.dot( _v2$2 ); + const dot11 = _v1$3.dot( _v1$3 ); + const dot12 = _v1$3.dot( _v2$2 ); + + const denom = ( dot00 * dot11 - dot01 * dot01 ); + + // collinear or singular triangle + if ( denom === 0 ) { + + // arbitrary location outside of triangle? + // not sure if this is the best idea, maybe should be returning undefined + return target.set( - 2, - 1, - 1 ); + + } + + const invDenom = 1 / denom; + const u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom; + const v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom; + + // barycentric coordinates must always sum to 1 + return target.set( 1 - u - v, v, u ); + + } + + static containsPoint( point, a, b, c ) { + + this.getBarycoord( point, a, b, c, _v3$1 ); + + return ( _v3$1.x >= 0 ) && ( _v3$1.y >= 0 ) && ( ( _v3$1.x + _v3$1.y ) <= 1 ); + + } + + static getUV( point, p1, p2, p3, uv1, uv2, uv3, target ) { + + this.getBarycoord( point, p1, p2, p3, _v3$1 ); + + target.set( 0, 0 ); + target.addScaledVector( uv1, _v3$1.x ); + target.addScaledVector( uv2, _v3$1.y ); + target.addScaledVector( uv3, _v3$1.z ); + + return target; + + } + + static isFrontFacing( a, b, c, direction ) { + + _v0$1.subVectors( c, b ); + _v1$3.subVectors( a, b ); + + // strictly front facing + return ( _v0$1.cross( _v1$3 ).dot( direction ) < 0 ) ? true : false; + + } + + set( a, b, c ) { + + this.a.copy( a ); + this.b.copy( b ); + this.c.copy( c ); + + return this; + + } + + setFromPointsAndIndices( points, i0, i1, i2 ) { + + this.a.copy( points[ i0 ] ); + this.b.copy( points[ i1 ] ); + this.c.copy( points[ i2 ] ); + + return this; + + } + + setFromAttributeAndIndices( attribute, i0, i1, i2 ) { + + this.a.fromBufferAttribute( attribute, i0 ); + this.b.fromBufferAttribute( attribute, i1 ); + this.c.fromBufferAttribute( attribute, i2 ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( triangle ) { + + this.a.copy( triangle.a ); + this.b.copy( triangle.b ); + this.c.copy( triangle.c ); + + return this; + + } + + getArea() { + + _v0$1.subVectors( this.c, this.b ); + _v1$3.subVectors( this.a, this.b ); + + return _v0$1.cross( _v1$3 ).length() * 0.5; + + } + + getMidpoint( target ) { + + return target.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 ); + + } + + getNormal( target ) { + + return Triangle.getNormal( this.a, this.b, this.c, target ); + + } + + getPlane( target ) { + + return target.setFromCoplanarPoints( this.a, this.b, this.c ); + + } + + getBarycoord( point, target ) { + + return Triangle.getBarycoord( point, this.a, this.b, this.c, target ); + + } + + getUV( point, uv1, uv2, uv3, target ) { + + return Triangle.getUV( point, this.a, this.b, this.c, uv1, uv2, uv3, target ); + + } + + containsPoint( point ) { + + return Triangle.containsPoint( point, this.a, this.b, this.c ); + + } + + isFrontFacing( direction ) { + + return Triangle.isFrontFacing( this.a, this.b, this.c, direction ); + + } + + intersectsBox( box ) { + + return box.intersectsTriangle( this ); + + } + + closestPointToPoint( p, target ) { + + const a = this.a, b = this.b, c = this.c; + let v, w; + + // algorithm thanks to Real-Time Collision Detection by Christer Ericson, + // published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc., + // under the accompanying license; see chapter 5.1.5 for detailed explanation. + // basically, we're distinguishing which of the voronoi regions of the triangle + // the point lies in with the minimum amount of redundant computation. + + _vab.subVectors( b, a ); + _vac.subVectors( c, a ); + _vap.subVectors( p, a ); + const d1 = _vab.dot( _vap ); + const d2 = _vac.dot( _vap ); + if ( d1 <= 0 && d2 <= 0 ) { + + // vertex region of A; barycentric coords (1, 0, 0) + return target.copy( a ); + + } + + _vbp.subVectors( p, b ); + const d3 = _vab.dot( _vbp ); + const d4 = _vac.dot( _vbp ); + if ( d3 >= 0 && d4 <= d3 ) { + + // vertex region of B; barycentric coords (0, 1, 0) + return target.copy( b ); + + } + + const vc = d1 * d4 - d3 * d2; + if ( vc <= 0 && d1 >= 0 && d3 <= 0 ) { + + v = d1 / ( d1 - d3 ); + // edge region of AB; barycentric coords (1-v, v, 0) + return target.copy( a ).addScaledVector( _vab, v ); + + } + + _vcp.subVectors( p, c ); + const d5 = _vab.dot( _vcp ); + const d6 = _vac.dot( _vcp ); + if ( d6 >= 0 && d5 <= d6 ) { + + // vertex region of C; barycentric coords (0, 0, 1) + return target.copy( c ); + + } + + const vb = d5 * d2 - d1 * d6; + if ( vb <= 0 && d2 >= 0 && d6 <= 0 ) { + + w = d2 / ( d2 - d6 ); + // edge region of AC; barycentric coords (1-w, 0, w) + return target.copy( a ).addScaledVector( _vac, w ); + + } + + const va = d3 * d6 - d5 * d4; + if ( va <= 0 && ( d4 - d3 ) >= 0 && ( d5 - d6 ) >= 0 ) { + + _vbc.subVectors( c, b ); + w = ( d4 - d3 ) / ( ( d4 - d3 ) + ( d5 - d6 ) ); + // edge region of BC; barycentric coords (0, 1-w, w) + return target.copy( b ).addScaledVector( _vbc, w ); // edge region of BC + + } + + // face region + const denom = 1 / ( va + vb + vc ); + // u = va * denom + v = vb * denom; + w = vc * denom; + + return target.copy( a ).addScaledVector( _vab, v ).addScaledVector( _vac, w ); + + } + + equals( triangle ) { + + return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c ); + + } + +} + +let materialId = 0; + +class Material extends EventDispatcher { + + constructor() { + + super(); + + Object.defineProperty( this, 'id', { value: materialId ++ } ); + + this.uuid = generateUUID(); + + this.name = ''; + this.type = 'Material'; + + this.fog = true; + + this.blending = NormalBlending; + this.side = FrontSide; + this.vertexColors = false; + + this.opacity = 1; + this.format = RGBAFormat; + this.transparent = false; + + this.blendSrc = SrcAlphaFactor; + this.blendDst = OneMinusSrcAlphaFactor; + this.blendEquation = AddEquation; + this.blendSrcAlpha = null; + this.blendDstAlpha = null; + this.blendEquationAlpha = null; + + this.depthFunc = LessEqualDepth; + this.depthTest = true; + this.depthWrite = true; + + this.stencilWriteMask = 0xff; + this.stencilFunc = AlwaysStencilFunc; + this.stencilRef = 0; + this.stencilFuncMask = 0xff; + this.stencilFail = KeepStencilOp; + this.stencilZFail = KeepStencilOp; + this.stencilZPass = KeepStencilOp; + this.stencilWrite = false; + + this.clippingPlanes = null; + this.clipIntersection = false; + this.clipShadows = false; + + this.shadowSide = null; + + this.colorWrite = true; + + this.precision = null; // override the renderer's default precision for this material + + this.polygonOffset = false; + this.polygonOffsetFactor = 0; + this.polygonOffsetUnits = 0; + + this.dithering = false; + + this.alphaToCoverage = false; + this.premultipliedAlpha = false; + + this.visible = true; + + this.toneMapped = true; + + this.userData = {}; + + this.version = 0; + + this._alphaTest = 0; + + } + + get alphaTest() { + + return this._alphaTest; + + } + + set alphaTest( value ) { + + if ( this._alphaTest > 0 !== value > 0 ) { + + this.version ++; + + } + + this._alphaTest = value; + + } + + onBuild( /* shaderobject, renderer */ ) {} + + onBeforeRender( /* renderer, scene, camera, geometry, object, group */ ) {} + + onBeforeCompile( /* shaderobject, renderer */ ) {} + + customProgramCacheKey() { + + return this.onBeforeCompile.toString(); + + } + + setValues( values ) { + + if ( values === undefined ) return; + + for ( const key in values ) { + + const newValue = values[ key ]; + + if ( newValue === undefined ) { + + console.warn( 'THREE.Material: \'' + key + '\' parameter is undefined.' ); + continue; + + } + + // for backward compatability if shading is set in the constructor + if ( key === 'shading' ) { + + console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' ); + this.flatShading = ( newValue === FlatShading ) ? true : false; + continue; + + } + + const currentValue = this[ key ]; + + if ( currentValue === undefined ) { + + console.warn( 'THREE.' + this.type + ': \'' + key + '\' is not a property of this material.' ); + continue; + + } + + if ( currentValue && currentValue.isColor ) { + + currentValue.set( newValue ); + + } else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) { + + currentValue.copy( newValue ); + + } else { + + this[ key ] = newValue; + + } + + } + + } + + toJSON( meta ) { + + const isRoot = ( meta === undefined || typeof meta === 'string' ); + + if ( isRoot ) { + + meta = { + textures: {}, + images: {} + }; + + } + + const data = { + metadata: { + version: 4.5, + type: 'Material', + generator: 'Material.toJSON' + } + }; + + // standard Material serialization + data.uuid = this.uuid; + data.type = this.type; + + if ( this.name !== '' ) data.name = this.name; + + if ( this.color && this.color.isColor ) data.color = this.color.getHex(); + + if ( this.roughness !== undefined ) data.roughness = this.roughness; + if ( this.metalness !== undefined ) data.metalness = this.metalness; + + if ( this.sheen !== undefined ) data.sheen = this.sheen; + if ( this.sheenColor && this.sheenColor.isColor ) data.sheenColor = this.sheenColor.getHex(); + if ( this.sheenRoughness !== undefined ) data.sheenRoughness = this.sheenRoughness; + if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex(); + if ( this.emissiveIntensity && this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity; + + if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex(); + if ( this.specularIntensity !== undefined ) data.specularIntensity = this.specularIntensity; + if ( this.specularColor && this.specularColor.isColor ) data.specularColor = this.specularColor.getHex(); + if ( this.shininess !== undefined ) data.shininess = this.shininess; + if ( this.clearcoat !== undefined ) data.clearcoat = this.clearcoat; + if ( this.clearcoatRoughness !== undefined ) data.clearcoatRoughness = this.clearcoatRoughness; + + if ( this.clearcoatMap && this.clearcoatMap.isTexture ) { + + data.clearcoatMap = this.clearcoatMap.toJSON( meta ).uuid; + + } + + if ( this.clearcoatRoughnessMap && this.clearcoatRoughnessMap.isTexture ) { + + data.clearcoatRoughnessMap = this.clearcoatRoughnessMap.toJSON( meta ).uuid; + + } + + if ( this.clearcoatNormalMap && this.clearcoatNormalMap.isTexture ) { + + data.clearcoatNormalMap = this.clearcoatNormalMap.toJSON( meta ).uuid; + data.clearcoatNormalScale = this.clearcoatNormalScale.toArray(); + + } + + if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid; + if ( this.matcap && this.matcap.isTexture ) data.matcap = this.matcap.toJSON( meta ).uuid; + if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid; + + if ( this.lightMap && this.lightMap.isTexture ) { + + data.lightMap = this.lightMap.toJSON( meta ).uuid; + data.lightMapIntensity = this.lightMapIntensity; + + } + + if ( this.aoMap && this.aoMap.isTexture ) { + + data.aoMap = this.aoMap.toJSON( meta ).uuid; + data.aoMapIntensity = this.aoMapIntensity; + + } + + if ( this.bumpMap && this.bumpMap.isTexture ) { + + data.bumpMap = this.bumpMap.toJSON( meta ).uuid; + data.bumpScale = this.bumpScale; + + } + + if ( this.normalMap && this.normalMap.isTexture ) { + + data.normalMap = this.normalMap.toJSON( meta ).uuid; + data.normalMapType = this.normalMapType; + data.normalScale = this.normalScale.toArray(); + + } + + if ( this.displacementMap && this.displacementMap.isTexture ) { + + data.displacementMap = this.displacementMap.toJSON( meta ).uuid; + data.displacementScale = this.displacementScale; + data.displacementBias = this.displacementBias; + + } + + if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid; + if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid; + + if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid; + if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid; + if ( this.specularIntensityMap && this.specularIntensityMap.isTexture ) data.specularIntensityMap = this.specularIntensityMap.toJSON( meta ).uuid; + if ( this.specularColorMap && this.specularColorMap.isTexture ) data.specularColorMap = this.specularColorMap.toJSON( meta ).uuid; + + if ( this.envMap && this.envMap.isTexture ) { + + data.envMap = this.envMap.toJSON( meta ).uuid; + + if ( this.combine !== undefined ) data.combine = this.combine; + + } + + if ( this.envMapIntensity !== undefined ) data.envMapIntensity = this.envMapIntensity; + if ( this.reflectivity !== undefined ) data.reflectivity = this.reflectivity; + if ( this.refractionRatio !== undefined ) data.refractionRatio = this.refractionRatio; + + if ( this.gradientMap && this.gradientMap.isTexture ) { + + data.gradientMap = this.gradientMap.toJSON( meta ).uuid; + + } + + if ( this.transmission !== undefined ) data.transmission = this.transmission; + if ( this.transmissionMap && this.transmissionMap.isTexture ) data.transmissionMap = this.transmissionMap.toJSON( meta ).uuid; + if ( this.thickness !== undefined ) data.thickness = this.thickness; + if ( this.thicknessMap && this.thicknessMap.isTexture ) data.thicknessMap = this.thicknessMap.toJSON( meta ).uuid; + if ( this.attenuationDistance !== undefined ) data.attenuationDistance = this.attenuationDistance; + if ( this.attenuationColor !== undefined ) data.attenuationColor = this.attenuationColor.getHex(); + + if ( this.size !== undefined ) data.size = this.size; + if ( this.shadowSide !== null ) data.shadowSide = this.shadowSide; + if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation; + + if ( this.blending !== NormalBlending ) data.blending = this.blending; + if ( this.side !== FrontSide ) data.side = this.side; + if ( this.vertexColors ) data.vertexColors = true; + + if ( this.opacity < 1 ) data.opacity = this.opacity; + if ( this.format !== RGBAFormat ) data.format = this.format; + if ( this.transparent === true ) data.transparent = this.transparent; + + data.depthFunc = this.depthFunc; + data.depthTest = this.depthTest; + data.depthWrite = this.depthWrite; + data.colorWrite = this.colorWrite; + + data.stencilWrite = this.stencilWrite; + data.stencilWriteMask = this.stencilWriteMask; + data.stencilFunc = this.stencilFunc; + data.stencilRef = this.stencilRef; + data.stencilFuncMask = this.stencilFuncMask; + data.stencilFail = this.stencilFail; + data.stencilZFail = this.stencilZFail; + data.stencilZPass = this.stencilZPass; + + // rotation (SpriteMaterial) + if ( this.rotation && this.rotation !== 0 ) data.rotation = this.rotation; + + if ( this.polygonOffset === true ) data.polygonOffset = true; + if ( this.polygonOffsetFactor !== 0 ) data.polygonOffsetFactor = this.polygonOffsetFactor; + if ( this.polygonOffsetUnits !== 0 ) data.polygonOffsetUnits = this.polygonOffsetUnits; + + if ( this.linewidth && this.linewidth !== 1 ) data.linewidth = this.linewidth; + if ( this.dashSize !== undefined ) data.dashSize = this.dashSize; + if ( this.gapSize !== undefined ) data.gapSize = this.gapSize; + if ( this.scale !== undefined ) data.scale = this.scale; + + if ( this.dithering === true ) data.dithering = true; + + if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest; + if ( this.alphaToCoverage === true ) data.alphaToCoverage = this.alphaToCoverage; + if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha; + + if ( this.wireframe === true ) data.wireframe = this.wireframe; + if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth; + if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap; + if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin; + + if ( this.flatShading === true ) data.flatShading = this.flatShading; + + if ( this.visible === false ) data.visible = false; + + if ( this.toneMapped === false ) data.toneMapped = false; + + if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData; + + // TODO: Copied from Object3D.toJSON + + function extractFromCache( cache ) { + + const values = []; + + for ( const key in cache ) { + + const data = cache[ key ]; + delete data.metadata; + values.push( data ); + + } + + return values; + + } + + if ( isRoot ) { + + const textures = extractFromCache( meta.textures ); + const images = extractFromCache( meta.images ); + + if ( textures.length > 0 ) data.textures = textures; + if ( images.length > 0 ) data.images = images; + + } + + return data; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( source ) { + + this.name = source.name; + + this.fog = source.fog; + + this.blending = source.blending; + this.side = source.side; + this.vertexColors = source.vertexColors; + + this.opacity = source.opacity; + this.format = source.format; + this.transparent = source.transparent; + + this.blendSrc = source.blendSrc; + this.blendDst = source.blendDst; + this.blendEquation = source.blendEquation; + this.blendSrcAlpha = source.blendSrcAlpha; + this.blendDstAlpha = source.blendDstAlpha; + this.blendEquationAlpha = source.blendEquationAlpha; + + this.depthFunc = source.depthFunc; + this.depthTest = source.depthTest; + this.depthWrite = source.depthWrite; + + this.stencilWriteMask = source.stencilWriteMask; + this.stencilFunc = source.stencilFunc; + this.stencilRef = source.stencilRef; + this.stencilFuncMask = source.stencilFuncMask; + this.stencilFail = source.stencilFail; + this.stencilZFail = source.stencilZFail; + this.stencilZPass = source.stencilZPass; + this.stencilWrite = source.stencilWrite; + + const srcPlanes = source.clippingPlanes; + let dstPlanes = null; + + if ( srcPlanes !== null ) { + + const n = srcPlanes.length; + dstPlanes = new Array( n ); + + for ( let i = 0; i !== n; ++ i ) { + + dstPlanes[ i ] = srcPlanes[ i ].clone(); + + } + + } + + this.clippingPlanes = dstPlanes; + this.clipIntersection = source.clipIntersection; + this.clipShadows = source.clipShadows; + + this.shadowSide = source.shadowSide; + + this.colorWrite = source.colorWrite; + + this.precision = source.precision; + + this.polygonOffset = source.polygonOffset; + this.polygonOffsetFactor = source.polygonOffsetFactor; + this.polygonOffsetUnits = source.polygonOffsetUnits; + + this.dithering = source.dithering; + + this.alphaTest = source.alphaTest; + this.alphaToCoverage = source.alphaToCoverage; + this.premultipliedAlpha = source.premultipliedAlpha; + + this.visible = source.visible; + + this.toneMapped = source.toneMapped; + + this.userData = JSON.parse( JSON.stringify( source.userData ) ); + + return this; + + } + + dispose() { + + this.dispatchEvent( { type: 'dispose' } ); + + } + + set needsUpdate( value ) { + + if ( value === true ) this.version ++; + + } + +} + +Material.prototype.isMaterial = true; + +const _colorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF, + 'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2, + 'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50, + 'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B, + 'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B, + 'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F, + 'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3, + 'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222, + 'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700, + 'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4, + 'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00, + 'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3, + 'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA, + 'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32, + 'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3, + 'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC, + 'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD, + 'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6, + 'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9, + 'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F, + 'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE, + 'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA, + 'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0, + 'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 }; + +const _hslA = { h: 0, s: 0, l: 0 }; +const _hslB = { h: 0, s: 0, l: 0 }; + +function hue2rgb( p, q, t ) { + + if ( t < 0 ) t += 1; + if ( t > 1 ) t -= 1; + if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t; + if ( t < 1 / 2 ) return q; + if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t ); + return p; + +} + +function SRGBToLinear( c ) { + + return ( c < 0.04045 ) ? c * 0.0773993808 : Math.pow( c * 0.9478672986 + 0.0521327014, 2.4 ); + +} + +function LinearToSRGB( c ) { + + return ( c < 0.0031308 ) ? c * 12.92 : 1.055 * ( Math.pow( c, 0.41666 ) ) - 0.055; + +} + +class Color { + + constructor( r, g, b ) { + + if ( g === undefined && b === undefined ) { + + // r is THREE.Color, hex or string + return this.set( r ); + + } + + return this.setRGB( r, g, b ); + + } + + set( value ) { + + if ( value && value.isColor ) { + + this.copy( value ); + + } else if ( typeof value === 'number' ) { + + this.setHex( value ); + + } else if ( typeof value === 'string' ) { + + this.setStyle( value ); + + } + + return this; + + } + + setScalar( scalar ) { + + this.r = scalar; + this.g = scalar; + this.b = scalar; + + return this; + + } + + setHex( hex ) { + + hex = Math.floor( hex ); + + this.r = ( hex >> 16 & 255 ) / 255; + this.g = ( hex >> 8 & 255 ) / 255; + this.b = ( hex & 255 ) / 255; + + return this; + + } + + setRGB( r, g, b ) { + + this.r = r; + this.g = g; + this.b = b; + + return this; + + } + + setHSL( h, s, l ) { + + // h,s,l ranges are in 0.0 - 1.0 + h = euclideanModulo( h, 1 ); + s = clamp( s, 0, 1 ); + l = clamp( l, 0, 1 ); + + if ( s === 0 ) { + + this.r = this.g = this.b = l; + + } else { + + const p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s ); + const q = ( 2 * l ) - p; + + this.r = hue2rgb( q, p, h + 1 / 3 ); + this.g = hue2rgb( q, p, h ); + this.b = hue2rgb( q, p, h - 1 / 3 ); + + } + + return this; + + } + + setStyle( style ) { + + function handleAlpha( string ) { + + if ( string === undefined ) return; + + if ( parseFloat( string ) < 1 ) { + + console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' ); + + } + + } + + + let m; + + if ( m = /^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec( style ) ) { + + // rgb / hsl + + let color; + const name = m[ 1 ]; + const components = m[ 2 ]; + + switch ( name ) { + + case 'rgb': + case 'rgba': + + if ( color = /^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) { + + // rgb(255,0,0) rgba(255,0,0,0.5) + this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255; + this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255; + this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255; + + handleAlpha( color[ 4 ] ); + + return this; + + } + + if ( color = /^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) { + + // rgb(100%,0%,0%) rgba(100%,0%,0%,0.5) + this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100; + this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100; + this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100; + + handleAlpha( color[ 4 ] ); + + return this; + + } + + break; + + case 'hsl': + case 'hsla': + + if ( color = /^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) { + + // hsl(120,50%,50%) hsla(120,50%,50%,0.5) + const h = parseFloat( color[ 1 ] ) / 360; + const s = parseInt( color[ 2 ], 10 ) / 100; + const l = parseInt( color[ 3 ], 10 ) / 100; + + handleAlpha( color[ 4 ] ); + + return this.setHSL( h, s, l ); + + } + + break; + + } + + } else if ( m = /^\#([A-Fa-f\d]+)$/.exec( style ) ) { + + // hex color + + const hex = m[ 1 ]; + const size = hex.length; + + if ( size === 3 ) { + + // #ff0 + this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255; + this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255; + this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255; + + return this; + + } else if ( size === 6 ) { + + // #ff0000 + this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255; + this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255; + this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255; + + return this; + + } + + } + + if ( style && style.length > 0 ) { + + return this.setColorName( style ); + + } + + return this; + + } + + setColorName( style ) { + + // color keywords + const hex = _colorKeywords[ style.toLowerCase() ]; + + if ( hex !== undefined ) { + + // red + this.setHex( hex ); + + } else { + + // unknown color + console.warn( 'THREE.Color: Unknown color ' + style ); + + } + + return this; + + } + + clone() { + + return new this.constructor( this.r, this.g, this.b ); + + } + + copy( color ) { + + this.r = color.r; + this.g = color.g; + this.b = color.b; + + return this; + + } + + copyGammaToLinear( color, gammaFactor = 2.0 ) { + + this.r = Math.pow( color.r, gammaFactor ); + this.g = Math.pow( color.g, gammaFactor ); + this.b = Math.pow( color.b, gammaFactor ); + + return this; + + } + + copyLinearToGamma( color, gammaFactor = 2.0 ) { + + const safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0; + + this.r = Math.pow( color.r, safeInverse ); + this.g = Math.pow( color.g, safeInverse ); + this.b = Math.pow( color.b, safeInverse ); + + return this; + + } + + convertGammaToLinear( gammaFactor ) { + + this.copyGammaToLinear( this, gammaFactor ); + + return this; + + } + + convertLinearToGamma( gammaFactor ) { + + this.copyLinearToGamma( this, gammaFactor ); + + return this; + + } + + copySRGBToLinear( color ) { + + this.r = SRGBToLinear( color.r ); + this.g = SRGBToLinear( color.g ); + this.b = SRGBToLinear( color.b ); + + return this; + + } + + copyLinearToSRGB( color ) { + + this.r = LinearToSRGB( color.r ); + this.g = LinearToSRGB( color.g ); + this.b = LinearToSRGB( color.b ); + + return this; + + } + + convertSRGBToLinear() { + + this.copySRGBToLinear( this ); + + return this; + + } + + convertLinearToSRGB() { + + this.copyLinearToSRGB( this ); + + return this; + + } + + getHex() { + + return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0; + + } + + getHexString() { + + return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 ); + + } + + getHSL( target ) { + + // h,s,l ranges are in 0.0 - 1.0 + + const r = this.r, g = this.g, b = this.b; + + const max = Math.max( r, g, b ); + const min = Math.min( r, g, b ); + + let hue, saturation; + const lightness = ( min + max ) / 2.0; + + if ( min === max ) { + + hue = 0; + saturation = 0; + + } else { + + const delta = max - min; + + saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min ); + + switch ( max ) { + + case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break; + case g: hue = ( b - r ) / delta + 2; break; + case b: hue = ( r - g ) / delta + 4; break; + + } + + hue /= 6; + + } + + target.h = hue; + target.s = saturation; + target.l = lightness; + + return target; + + } + + getStyle() { + + return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')'; + + } + + offsetHSL( h, s, l ) { + + this.getHSL( _hslA ); + + _hslA.h += h; _hslA.s += s; _hslA.l += l; + + this.setHSL( _hslA.h, _hslA.s, _hslA.l ); + + return this; + + } + + add( color ) { + + this.r += color.r; + this.g += color.g; + this.b += color.b; + + return this; + + } + + addColors( color1, color2 ) { + + this.r = color1.r + color2.r; + this.g = color1.g + color2.g; + this.b = color1.b + color2.b; + + return this; + + } + + addScalar( s ) { + + this.r += s; + this.g += s; + this.b += s; + + return this; + + } + + sub( color ) { + + this.r = Math.max( 0, this.r - color.r ); + this.g = Math.max( 0, this.g - color.g ); + this.b = Math.max( 0, this.b - color.b ); + + return this; + + } + + multiply( color ) { + + this.r *= color.r; + this.g *= color.g; + this.b *= color.b; + + return this; + + } + + multiplyScalar( s ) { + + this.r *= s; + this.g *= s; + this.b *= s; + + return this; + + } + + lerp( color, alpha ) { + + this.r += ( color.r - this.r ) * alpha; + this.g += ( color.g - this.g ) * alpha; + this.b += ( color.b - this.b ) * alpha; + + return this; + + } + + lerpColors( color1, color2, alpha ) { + + this.r = color1.r + ( color2.r - color1.r ) * alpha; + this.g = color1.g + ( color2.g - color1.g ) * alpha; + this.b = color1.b + ( color2.b - color1.b ) * alpha; + + return this; + + } + + lerpHSL( color, alpha ) { + + this.getHSL( _hslA ); + color.getHSL( _hslB ); + + const h = lerp( _hslA.h, _hslB.h, alpha ); + const s = lerp( _hslA.s, _hslB.s, alpha ); + const l = lerp( _hslA.l, _hslB.l, alpha ); + + this.setHSL( h, s, l ); + + return this; + + } + + equals( c ) { + + return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b ); + + } + + fromArray( array, offset = 0 ) { + + this.r = array[ offset ]; + this.g = array[ offset + 1 ]; + this.b = array[ offset + 2 ]; + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this.r; + array[ offset + 1 ] = this.g; + array[ offset + 2 ] = this.b; + + return array; + + } + + fromBufferAttribute( attribute, index ) { + + this.r = attribute.getX( index ); + this.g = attribute.getY( index ); + this.b = attribute.getZ( index ); + + if ( attribute.normalized === true ) { + + // assuming Uint8Array + + this.r /= 255; + this.g /= 255; + this.b /= 255; + + } + + return this; + + } + + toJSON() { + + return this.getHex(); + + } + +} + +Color.NAMES = _colorKeywords; + +Color.prototype.isColor = true; +Color.prototype.r = 1; +Color.prototype.g = 1; +Color.prototype.b = 1; + +/** + * parameters = { + * color: , + * opacity: , + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * specularMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ), + * combine: THREE.Multiply, + * reflectivity: , + * refractionRatio: , + * + * depthTest: , + * depthWrite: , + * + * wireframe: , + * wireframeLinewidth: , + * } + */ + +class MeshBasicMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'MeshBasicMaterial'; + + this.color = new Color( 0xffffff ); // emissive + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.specularMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.combine = MultiplyOperation; + this.reflectivity = 1; + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.specularMap = source.specularMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.combine = source.combine; + this.reflectivity = source.reflectivity; + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + return this; + + } + +} + +MeshBasicMaterial.prototype.isMeshBasicMaterial = true; + +const _vector$9 = /*@__PURE__*/ new Vector3(); +const _vector2$1 = /*@__PURE__*/ new Vector2(); + +class BufferAttribute { + + constructor( array, itemSize, normalized ) { + + if ( Array.isArray( array ) ) { + + throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' ); + + } + + this.name = ''; + + this.array = array; + this.itemSize = itemSize; + this.count = array !== undefined ? array.length / itemSize : 0; + this.normalized = normalized === true; + + this.usage = StaticDrawUsage; + this.updateRange = { offset: 0, count: - 1 }; + + this.version = 0; + + } + + onUploadCallback() {} + + set needsUpdate( value ) { + + if ( value === true ) this.version ++; + + } + + setUsage( value ) { + + this.usage = value; + + return this; + + } + + copy( source ) { + + this.name = source.name; + this.array = new source.array.constructor( source.array ); + this.itemSize = source.itemSize; + this.count = source.count; + this.normalized = source.normalized; + + this.usage = source.usage; + + return this; + + } + + copyAt( index1, attribute, index2 ) { + + index1 *= this.itemSize; + index2 *= attribute.itemSize; + + for ( let i = 0, l = this.itemSize; i < l; i ++ ) { + + this.array[ index1 + i ] = attribute.array[ index2 + i ]; + + } + + return this; + + } + + copyArray( array ) { + + this.array.set( array ); + + return this; + + } + + copyColorsArray( colors ) { + + const array = this.array; + let offset = 0; + + for ( let i = 0, l = colors.length; i < l; i ++ ) { + + let color = colors[ i ]; + + if ( color === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i ); + color = new Color(); + + } + + array[ offset ++ ] = color.r; + array[ offset ++ ] = color.g; + array[ offset ++ ] = color.b; + + } + + return this; + + } + + copyVector2sArray( vectors ) { + + const array = this.array; + let offset = 0; + + for ( let i = 0, l = vectors.length; i < l; i ++ ) { + + let vector = vectors[ i ]; + + if ( vector === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i ); + vector = new Vector2(); + + } + + array[ offset ++ ] = vector.x; + array[ offset ++ ] = vector.y; + + } + + return this; + + } + + copyVector3sArray( vectors ) { + + const array = this.array; + let offset = 0; + + for ( let i = 0, l = vectors.length; i < l; i ++ ) { + + let vector = vectors[ i ]; + + if ( vector === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i ); + vector = new Vector3(); + + } + + array[ offset ++ ] = vector.x; + array[ offset ++ ] = vector.y; + array[ offset ++ ] = vector.z; + + } + + return this; + + } + + copyVector4sArray( vectors ) { + + const array = this.array; + let offset = 0; + + for ( let i = 0, l = vectors.length; i < l; i ++ ) { + + let vector = vectors[ i ]; + + if ( vector === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i ); + vector = new Vector4(); + + } + + array[ offset ++ ] = vector.x; + array[ offset ++ ] = vector.y; + array[ offset ++ ] = vector.z; + array[ offset ++ ] = vector.w; + + } + + return this; + + } + + applyMatrix3( m ) { + + if ( this.itemSize === 2 ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector2$1.fromBufferAttribute( this, i ); + _vector2$1.applyMatrix3( m ); + + this.setXY( i, _vector2$1.x, _vector2$1.y ); + + } + + } else if ( this.itemSize === 3 ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$9.fromBufferAttribute( this, i ); + _vector$9.applyMatrix3( m ); + + this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z ); + + } + + } + + return this; + + } + + applyMatrix4( m ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$9.x = this.getX( i ); + _vector$9.y = this.getY( i ); + _vector$9.z = this.getZ( i ); + + _vector$9.applyMatrix4( m ); + + this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z ); + + } + + return this; + + } + + applyNormalMatrix( m ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$9.x = this.getX( i ); + _vector$9.y = this.getY( i ); + _vector$9.z = this.getZ( i ); + + _vector$9.applyNormalMatrix( m ); + + this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z ); + + } + + return this; + + } + + transformDirection( m ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$9.x = this.getX( i ); + _vector$9.y = this.getY( i ); + _vector$9.z = this.getZ( i ); + + _vector$9.transformDirection( m ); + + this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z ); + + } + + return this; + + } + + set( value, offset = 0 ) { + + this.array.set( value, offset ); + + return this; + + } + + getX( index ) { + + return this.array[ index * this.itemSize ]; + + } + + setX( index, x ) { + + this.array[ index * this.itemSize ] = x; + + return this; + + } + + getY( index ) { + + return this.array[ index * this.itemSize + 1 ]; + + } + + setY( index, y ) { + + this.array[ index * this.itemSize + 1 ] = y; + + return this; + + } + + getZ( index ) { + + return this.array[ index * this.itemSize + 2 ]; + + } + + setZ( index, z ) { + + this.array[ index * this.itemSize + 2 ] = z; + + return this; + + } + + getW( index ) { + + return this.array[ index * this.itemSize + 3 ]; + + } + + setW( index, w ) { + + this.array[ index * this.itemSize + 3 ] = w; + + return this; + + } + + setXY( index, x, y ) { + + index *= this.itemSize; + + this.array[ index + 0 ] = x; + this.array[ index + 1 ] = y; + + return this; + + } + + setXYZ( index, x, y, z ) { + + index *= this.itemSize; + + this.array[ index + 0 ] = x; + this.array[ index + 1 ] = y; + this.array[ index + 2 ] = z; + + return this; + + } + + setXYZW( index, x, y, z, w ) { + + index *= this.itemSize; + + this.array[ index + 0 ] = x; + this.array[ index + 1 ] = y; + this.array[ index + 2 ] = z; + this.array[ index + 3 ] = w; + + return this; + + } + + onUpload( callback ) { + + this.onUploadCallback = callback; + + return this; + + } + + clone() { + + return new this.constructor( this.array, this.itemSize ).copy( this ); + + } + + toJSON() { + + const data = { + itemSize: this.itemSize, + type: this.array.constructor.name, + array: Array.prototype.slice.call( this.array ), + normalized: this.normalized + }; + + if ( this.name !== '' ) data.name = this.name; + if ( this.usage !== StaticDrawUsage ) data.usage = this.usage; + if ( this.updateRange.offset !== 0 || this.updateRange.count !== - 1 ) data.updateRange = this.updateRange; + + return data; + + } + +} + +BufferAttribute.prototype.isBufferAttribute = true; + +// + +class Int8BufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Int8Array( array ), itemSize, normalized ); + + } + +} + +class Uint8BufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Uint8Array( array ), itemSize, normalized ); + + } + +} + +class Uint8ClampedBufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Uint8ClampedArray( array ), itemSize, normalized ); + + } + +} + +class Int16BufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Int16Array( array ), itemSize, normalized ); + + } + +} + +class Uint16BufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Uint16Array( array ), itemSize, normalized ); + + } + +} + +class Int32BufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Int32Array( array ), itemSize, normalized ); + + } + +} + +class Uint32BufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Uint32Array( array ), itemSize, normalized ); + + } + +} + +class Float16BufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Uint16Array( array ), itemSize, normalized ); + + } + +} + +Float16BufferAttribute.prototype.isFloat16BufferAttribute = true; + +class Float32BufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Float32Array( array ), itemSize, normalized ); + + } + +} + +class Float64BufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized ) { + + super( new Float64Array( array ), itemSize, normalized ); + + } + +} + +let _id = 0; + +const _m1 = /*@__PURE__*/ new Matrix4(); +const _obj = /*@__PURE__*/ new Object3D(); +const _offset = /*@__PURE__*/ new Vector3(); +const _box$1 = /*@__PURE__*/ new Box3(); +const _boxMorphTargets = /*@__PURE__*/ new Box3(); +const _vector$8 = /*@__PURE__*/ new Vector3(); + +class BufferGeometry extends EventDispatcher { + + constructor() { + + super(); + + Object.defineProperty( this, 'id', { value: _id ++ } ); + + this.uuid = generateUUID(); + + this.name = ''; + this.type = 'BufferGeometry'; + + this.index = null; + this.attributes = {}; + + this.morphAttributes = {}; + this.morphTargetsRelative = false; + + this.groups = []; + + this.boundingBox = null; + this.boundingSphere = null; + + this.drawRange = { start: 0, count: Infinity }; + + this.userData = {}; + + } + + getIndex() { + + return this.index; + + } + + setIndex( index ) { + + if ( Array.isArray( index ) ) { + + this.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 ); + + } else { + + this.index = index; + + } + + return this; + + } + + getAttribute( name ) { + + return this.attributes[ name ]; + + } + + setAttribute( name, attribute ) { + + this.attributes[ name ] = attribute; + + return this; + + } + + deleteAttribute( name ) { + + delete this.attributes[ name ]; + + return this; + + } + + hasAttribute( name ) { + + return this.attributes[ name ] !== undefined; + + } + + addGroup( start, count, materialIndex = 0 ) { + + this.groups.push( { + + start: start, + count: count, + materialIndex: materialIndex + + } ); + + } + + clearGroups() { + + this.groups = []; + + } + + setDrawRange( start, count ) { + + this.drawRange.start = start; + this.drawRange.count = count; + + } + + applyMatrix4( matrix ) { + + const position = this.attributes.position; + + if ( position !== undefined ) { + + position.applyMatrix4( matrix ); + + position.needsUpdate = true; + + } + + const normal = this.attributes.normal; + + if ( normal !== undefined ) { + + const normalMatrix = new Matrix3().getNormalMatrix( matrix ); + + normal.applyNormalMatrix( normalMatrix ); + + normal.needsUpdate = true; + + } + + const tangent = this.attributes.tangent; + + if ( tangent !== undefined ) { + + tangent.transformDirection( matrix ); + + tangent.needsUpdate = true; + + } + + if ( this.boundingBox !== null ) { + + this.computeBoundingBox(); + + } + + if ( this.boundingSphere !== null ) { + + this.computeBoundingSphere(); + + } + + return this; + + } + + applyQuaternion( q ) { + + _m1.makeRotationFromQuaternion( q ); + + this.applyMatrix4( _m1 ); + + return this; + + } + + rotateX( angle ) { + + // rotate geometry around world x-axis + + _m1.makeRotationX( angle ); + + this.applyMatrix4( _m1 ); + + return this; + + } + + rotateY( angle ) { + + // rotate geometry around world y-axis + + _m1.makeRotationY( angle ); + + this.applyMatrix4( _m1 ); + + return this; + + } + + rotateZ( angle ) { + + // rotate geometry around world z-axis + + _m1.makeRotationZ( angle ); + + this.applyMatrix4( _m1 ); + + return this; + + } + + translate( x, y, z ) { + + // translate geometry + + _m1.makeTranslation( x, y, z ); + + this.applyMatrix4( _m1 ); + + return this; + + } + + scale( x, y, z ) { + + // scale geometry + + _m1.makeScale( x, y, z ); + + this.applyMatrix4( _m1 ); + + return this; + + } + + lookAt( vector ) { + + _obj.lookAt( vector ); + + _obj.updateMatrix(); + + this.applyMatrix4( _obj.matrix ); + + return this; + + } + + center() { + + this.computeBoundingBox(); + + this.boundingBox.getCenter( _offset ).negate(); + + this.translate( _offset.x, _offset.y, _offset.z ); + + return this; + + } + + setFromPoints( points ) { + + const position = []; + + for ( let i = 0, l = points.length; i < l; i ++ ) { + + const point = points[ i ]; + position.push( point.x, point.y, point.z || 0 ); + + } + + this.setAttribute( 'position', new Float32BufferAttribute( position, 3 ) ); + + return this; + + } + + computeBoundingBox() { + + if ( this.boundingBox === null ) { + + this.boundingBox = new Box3(); + + } + + const position = this.attributes.position; + const morphAttributesPosition = this.morphAttributes.position; + + if ( position && position.isGLBufferAttribute ) { + + console.error( 'THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".', this ); + + this.boundingBox.set( + new Vector3( - Infinity, - Infinity, - Infinity ), + new Vector3( + Infinity, + Infinity, + Infinity ) + ); + + return; + + } + + if ( position !== undefined ) { + + this.boundingBox.setFromBufferAttribute( position ); + + // process morph attributes if present + + if ( morphAttributesPosition ) { + + for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) { + + const morphAttribute = morphAttributesPosition[ i ]; + _box$1.setFromBufferAttribute( morphAttribute ); + + if ( this.morphTargetsRelative ) { + + _vector$8.addVectors( this.boundingBox.min, _box$1.min ); + this.boundingBox.expandByPoint( _vector$8 ); + + _vector$8.addVectors( this.boundingBox.max, _box$1.max ); + this.boundingBox.expandByPoint( _vector$8 ); + + } else { + + this.boundingBox.expandByPoint( _box$1.min ); + this.boundingBox.expandByPoint( _box$1.max ); + + } + + } + + } + + } else { + + this.boundingBox.makeEmpty(); + + } + + if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) { + + console.error( 'THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this ); + + } + + } + + computeBoundingSphere() { + + if ( this.boundingSphere === null ) { + + this.boundingSphere = new Sphere(); + + } + + const position = this.attributes.position; + const morphAttributesPosition = this.morphAttributes.position; + + if ( position && position.isGLBufferAttribute ) { + + console.error( 'THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".', this ); + + this.boundingSphere.set( new Vector3(), Infinity ); + + return; + + } + + if ( position ) { + + // first, find the center of the bounding sphere + + const center = this.boundingSphere.center; + + _box$1.setFromBufferAttribute( position ); + + // process morph attributes if present + + if ( morphAttributesPosition ) { + + for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) { + + const morphAttribute = morphAttributesPosition[ i ]; + _boxMorphTargets.setFromBufferAttribute( morphAttribute ); + + if ( this.morphTargetsRelative ) { + + _vector$8.addVectors( _box$1.min, _boxMorphTargets.min ); + _box$1.expandByPoint( _vector$8 ); + + _vector$8.addVectors( _box$1.max, _boxMorphTargets.max ); + _box$1.expandByPoint( _vector$8 ); + + } else { + + _box$1.expandByPoint( _boxMorphTargets.min ); + _box$1.expandByPoint( _boxMorphTargets.max ); + + } + + } + + } + + _box$1.getCenter( center ); + + // second, try to find a boundingSphere with a radius smaller than the + // boundingSphere of the boundingBox: sqrt(3) smaller in the best case + + let maxRadiusSq = 0; + + for ( let i = 0, il = position.count; i < il; i ++ ) { + + _vector$8.fromBufferAttribute( position, i ); + + maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( _vector$8 ) ); + + } + + // process morph attributes if present + + if ( morphAttributesPosition ) { + + for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) { + + const morphAttribute = morphAttributesPosition[ i ]; + const morphTargetsRelative = this.morphTargetsRelative; + + for ( let j = 0, jl = morphAttribute.count; j < jl; j ++ ) { + + _vector$8.fromBufferAttribute( morphAttribute, j ); + + if ( morphTargetsRelative ) { + + _offset.fromBufferAttribute( position, j ); + _vector$8.add( _offset ); + + } + + maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( _vector$8 ) ); + + } + + } + + } + + this.boundingSphere.radius = Math.sqrt( maxRadiusSq ); + + if ( isNaN( this.boundingSphere.radius ) ) { + + console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this ); + + } + + } + + } + + computeTangents() { + + const index = this.index; + const attributes = this.attributes; + + // based on http://www.terathon.com/code/tangent.html + // (per vertex tangents) + + if ( index === null || + attributes.position === undefined || + attributes.normal === undefined || + attributes.uv === undefined ) { + + console.error( 'THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)' ); + return; + + } + + const indices = index.array; + const positions = attributes.position.array; + const normals = attributes.normal.array; + const uvs = attributes.uv.array; + + const nVertices = positions.length / 3; + + if ( attributes.tangent === undefined ) { + + this.setAttribute( 'tangent', new BufferAttribute( new Float32Array( 4 * nVertices ), 4 ) ); + + } + + const tangents = attributes.tangent.array; + + const tan1 = [], tan2 = []; + + for ( let i = 0; i < nVertices; i ++ ) { + + tan1[ i ] = new Vector3(); + tan2[ i ] = new Vector3(); + + } + + const vA = new Vector3(), + vB = new Vector3(), + vC = new Vector3(), + + uvA = new Vector2(), + uvB = new Vector2(), + uvC = new Vector2(), + + sdir = new Vector3(), + tdir = new Vector3(); + + function handleTriangle( a, b, c ) { + + vA.fromArray( positions, a * 3 ); + vB.fromArray( positions, b * 3 ); + vC.fromArray( positions, c * 3 ); + + uvA.fromArray( uvs, a * 2 ); + uvB.fromArray( uvs, b * 2 ); + uvC.fromArray( uvs, c * 2 ); + + vB.sub( vA ); + vC.sub( vA ); + + uvB.sub( uvA ); + uvC.sub( uvA ); + + const r = 1.0 / ( uvB.x * uvC.y - uvC.x * uvB.y ); + + // silently ignore degenerate uv triangles having coincident or colinear vertices + + if ( ! isFinite( r ) ) return; + + sdir.copy( vB ).multiplyScalar( uvC.y ).addScaledVector( vC, - uvB.y ).multiplyScalar( r ); + tdir.copy( vC ).multiplyScalar( uvB.x ).addScaledVector( vB, - uvC.x ).multiplyScalar( r ); + + tan1[ a ].add( sdir ); + tan1[ b ].add( sdir ); + tan1[ c ].add( sdir ); + + tan2[ a ].add( tdir ); + tan2[ b ].add( tdir ); + tan2[ c ].add( tdir ); + + } + + let groups = this.groups; + + if ( groups.length === 0 ) { + + groups = [ { + start: 0, + count: indices.length + } ]; + + } + + for ( let i = 0, il = groups.length; i < il; ++ i ) { + + const group = groups[ i ]; + + const start = group.start; + const count = group.count; + + for ( let j = start, jl = start + count; j < jl; j += 3 ) { + + handleTriangle( + indices[ j + 0 ], + indices[ j + 1 ], + indices[ j + 2 ] + ); + + } + + } + + const tmp = new Vector3(), tmp2 = new Vector3(); + const n = new Vector3(), n2 = new Vector3(); + + function handleVertex( v ) { + + n.fromArray( normals, v * 3 ); + n2.copy( n ); + + const t = tan1[ v ]; + + // Gram-Schmidt orthogonalize + + tmp.copy( t ); + tmp.sub( n.multiplyScalar( n.dot( t ) ) ).normalize(); + + // Calculate handedness + + tmp2.crossVectors( n2, t ); + const test = tmp2.dot( tan2[ v ] ); + const w = ( test < 0.0 ) ? - 1.0 : 1.0; + + tangents[ v * 4 ] = tmp.x; + tangents[ v * 4 + 1 ] = tmp.y; + tangents[ v * 4 + 2 ] = tmp.z; + tangents[ v * 4 + 3 ] = w; + + } + + for ( let i = 0, il = groups.length; i < il; ++ i ) { + + const group = groups[ i ]; + + const start = group.start; + const count = group.count; + + for ( let j = start, jl = start + count; j < jl; j += 3 ) { + + handleVertex( indices[ j + 0 ] ); + handleVertex( indices[ j + 1 ] ); + handleVertex( indices[ j + 2 ] ); + + } + + } + + } + + computeVertexNormals() { + + const index = this.index; + const positionAttribute = this.getAttribute( 'position' ); + + if ( positionAttribute !== undefined ) { + + let normalAttribute = this.getAttribute( 'normal' ); + + if ( normalAttribute === undefined ) { + + normalAttribute = new BufferAttribute( new Float32Array( positionAttribute.count * 3 ), 3 ); + this.setAttribute( 'normal', normalAttribute ); + + } else { + + // reset existing normals to zero + + for ( let i = 0, il = normalAttribute.count; i < il; i ++ ) { + + normalAttribute.setXYZ( i, 0, 0, 0 ); + + } + + } + + const pA = new Vector3(), pB = new Vector3(), pC = new Vector3(); + const nA = new Vector3(), nB = new Vector3(), nC = new Vector3(); + const cb = new Vector3(), ab = new Vector3(); + + // indexed elements + + if ( index ) { + + for ( let i = 0, il = index.count; i < il; i += 3 ) { + + const vA = index.getX( i + 0 ); + const vB = index.getX( i + 1 ); + const vC = index.getX( i + 2 ); + + pA.fromBufferAttribute( positionAttribute, vA ); + pB.fromBufferAttribute( positionAttribute, vB ); + pC.fromBufferAttribute( positionAttribute, vC ); + + cb.subVectors( pC, pB ); + ab.subVectors( pA, pB ); + cb.cross( ab ); + + nA.fromBufferAttribute( normalAttribute, vA ); + nB.fromBufferAttribute( normalAttribute, vB ); + nC.fromBufferAttribute( normalAttribute, vC ); + + nA.add( cb ); + nB.add( cb ); + nC.add( cb ); + + normalAttribute.setXYZ( vA, nA.x, nA.y, nA.z ); + normalAttribute.setXYZ( vB, nB.x, nB.y, nB.z ); + normalAttribute.setXYZ( vC, nC.x, nC.y, nC.z ); + + } + + } else { + + // non-indexed elements (unconnected triangle soup) + + for ( let i = 0, il = positionAttribute.count; i < il; i += 3 ) { + + pA.fromBufferAttribute( positionAttribute, i + 0 ); + pB.fromBufferAttribute( positionAttribute, i + 1 ); + pC.fromBufferAttribute( positionAttribute, i + 2 ); + + cb.subVectors( pC, pB ); + ab.subVectors( pA, pB ); + cb.cross( ab ); + + normalAttribute.setXYZ( i + 0, cb.x, cb.y, cb.z ); + normalAttribute.setXYZ( i + 1, cb.x, cb.y, cb.z ); + normalAttribute.setXYZ( i + 2, cb.x, cb.y, cb.z ); + + } + + } + + this.normalizeNormals(); + + normalAttribute.needsUpdate = true; + + } + + } + + merge( geometry, offset ) { + + if ( ! ( geometry && geometry.isBufferGeometry ) ) { + + console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry ); + return; + + } + + if ( offset === undefined ) { + + offset = 0; + + console.warn( + 'THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. ' + + 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.' + ); + + } + + const attributes = this.attributes; + + for ( const key in attributes ) { + + if ( geometry.attributes[ key ] === undefined ) continue; + + const attribute1 = attributes[ key ]; + const attributeArray1 = attribute1.array; + + const attribute2 = geometry.attributes[ key ]; + const attributeArray2 = attribute2.array; + + const attributeOffset = attribute2.itemSize * offset; + const length = Math.min( attributeArray2.length, attributeArray1.length - attributeOffset ); + + for ( let i = 0, j = attributeOffset; i < length; i ++, j ++ ) { + + attributeArray1[ j ] = attributeArray2[ i ]; + + } + + } + + return this; + + } + + normalizeNormals() { + + const normals = this.attributes.normal; + + for ( let i = 0, il = normals.count; i < il; i ++ ) { + + _vector$8.fromBufferAttribute( normals, i ); + + _vector$8.normalize(); + + normals.setXYZ( i, _vector$8.x, _vector$8.y, _vector$8.z ); + + } + + } + + toNonIndexed() { + + function convertBufferAttribute( attribute, indices ) { + + const array = attribute.array; + const itemSize = attribute.itemSize; + const normalized = attribute.normalized; + + const array2 = new array.constructor( indices.length * itemSize ); + + let index = 0, index2 = 0; + + for ( let i = 0, l = indices.length; i < l; i ++ ) { + + if ( attribute.isInterleavedBufferAttribute ) { + + index = indices[ i ] * attribute.data.stride + attribute.offset; + + } else { + + index = indices[ i ] * itemSize; + + } + + for ( let j = 0; j < itemSize; j ++ ) { + + array2[ index2 ++ ] = array[ index ++ ]; + + } + + } + + return new BufferAttribute( array2, itemSize, normalized ); + + } + + // + + if ( this.index === null ) { + + console.warn( 'THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed.' ); + return this; + + } + + const geometry2 = new BufferGeometry(); + + const indices = this.index.array; + const attributes = this.attributes; + + // attributes + + for ( const name in attributes ) { + + const attribute = attributes[ name ]; + + const newAttribute = convertBufferAttribute( attribute, indices ); + + geometry2.setAttribute( name, newAttribute ); + + } + + // morph attributes + + const morphAttributes = this.morphAttributes; + + for ( const name in morphAttributes ) { + + const morphArray = []; + const morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes + + for ( let i = 0, il = morphAttribute.length; i < il; i ++ ) { + + const attribute = morphAttribute[ i ]; + + const newAttribute = convertBufferAttribute( attribute, indices ); + + morphArray.push( newAttribute ); + + } + + geometry2.morphAttributes[ name ] = morphArray; + + } + + geometry2.morphTargetsRelative = this.morphTargetsRelative; + + // groups + + const groups = this.groups; + + for ( let i = 0, l = groups.length; i < l; i ++ ) { + + const group = groups[ i ]; + geometry2.addGroup( group.start, group.count, group.materialIndex ); + + } + + return geometry2; + + } + + toJSON() { + + const data = { + metadata: { + version: 4.5, + type: 'BufferGeometry', + generator: 'BufferGeometry.toJSON' + } + }; + + // standard BufferGeometry serialization + + data.uuid = this.uuid; + data.type = this.type; + if ( this.name !== '' ) data.name = this.name; + if ( Object.keys( this.userData ).length > 0 ) data.userData = this.userData; + + if ( this.parameters !== undefined ) { + + const parameters = this.parameters; + + for ( const key in parameters ) { + + if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ]; + + } + + return data; + + } + + // for simplicity the code assumes attributes are not shared across geometries, see #15811 + + data.data = { attributes: {} }; + + const index = this.index; + + if ( index !== null ) { + + data.data.index = { + type: index.array.constructor.name, + array: Array.prototype.slice.call( index.array ) + }; + + } + + const attributes = this.attributes; + + for ( const key in attributes ) { + + const attribute = attributes[ key ]; + + data.data.attributes[ key ] = attribute.toJSON( data.data ); + + } + + const morphAttributes = {}; + let hasMorphAttributes = false; + + for ( const key in this.morphAttributes ) { + + const attributeArray = this.morphAttributes[ key ]; + + const array = []; + + for ( let i = 0, il = attributeArray.length; i < il; i ++ ) { + + const attribute = attributeArray[ i ]; + + array.push( attribute.toJSON( data.data ) ); + + } + + if ( array.length > 0 ) { + + morphAttributes[ key ] = array; + + hasMorphAttributes = true; + + } + + } + + if ( hasMorphAttributes ) { + + data.data.morphAttributes = morphAttributes; + data.data.morphTargetsRelative = this.morphTargetsRelative; + + } + + const groups = this.groups; + + if ( groups.length > 0 ) { + + data.data.groups = JSON.parse( JSON.stringify( groups ) ); + + } + + const boundingSphere = this.boundingSphere; + + if ( boundingSphere !== null ) { + + data.data.boundingSphere = { + center: boundingSphere.center.toArray(), + radius: boundingSphere.radius + }; + + } + + return data; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( source ) { + + // reset + + this.index = null; + this.attributes = {}; + this.morphAttributes = {}; + this.groups = []; + this.boundingBox = null; + this.boundingSphere = null; + + // used for storing cloned, shared data + + const data = {}; + + // name + + this.name = source.name; + + // index + + const index = source.index; + + if ( index !== null ) { + + this.setIndex( index.clone( data ) ); + + } + + // attributes + + const attributes = source.attributes; + + for ( const name in attributes ) { + + const attribute = attributes[ name ]; + this.setAttribute( name, attribute.clone( data ) ); + + } + + // morph attributes + + const morphAttributes = source.morphAttributes; + + for ( const name in morphAttributes ) { + + const array = []; + const morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes + + for ( let i = 0, l = morphAttribute.length; i < l; i ++ ) { + + array.push( morphAttribute[ i ].clone( data ) ); + + } + + this.morphAttributes[ name ] = array; + + } + + this.morphTargetsRelative = source.morphTargetsRelative; + + // groups + + const groups = source.groups; + + for ( let i = 0, l = groups.length; i < l; i ++ ) { + + const group = groups[ i ]; + this.addGroup( group.start, group.count, group.materialIndex ); + + } + + // bounding box + + const boundingBox = source.boundingBox; + + if ( boundingBox !== null ) { + + this.boundingBox = boundingBox.clone(); + + } + + // bounding sphere + + const boundingSphere = source.boundingSphere; + + if ( boundingSphere !== null ) { + + this.boundingSphere = boundingSphere.clone(); + + } + + // draw range + + this.drawRange.start = source.drawRange.start; + this.drawRange.count = source.drawRange.count; + + // user data + + this.userData = source.userData; + + // geometry generator parameters + + if ( source.parameters !== undefined ) this.parameters = Object.assign( {}, source.parameters ); + + return this; + + } + + dispose() { + + this.dispatchEvent( { type: 'dispose' } ); + + } + +} + +BufferGeometry.prototype.isBufferGeometry = true; + +const _inverseMatrix$2 = /*@__PURE__*/ new Matrix4(); +const _ray$2 = /*@__PURE__*/ new Ray(); +const _sphere$3 = /*@__PURE__*/ new Sphere(); + +const _vA$1 = /*@__PURE__*/ new Vector3(); +const _vB$1 = /*@__PURE__*/ new Vector3(); +const _vC$1 = /*@__PURE__*/ new Vector3(); + +const _tempA = /*@__PURE__*/ new Vector3(); +const _tempB = /*@__PURE__*/ new Vector3(); +const _tempC = /*@__PURE__*/ new Vector3(); + +const _morphA = /*@__PURE__*/ new Vector3(); +const _morphB = /*@__PURE__*/ new Vector3(); +const _morphC = /*@__PURE__*/ new Vector3(); + +const _uvA$1 = /*@__PURE__*/ new Vector2(); +const _uvB$1 = /*@__PURE__*/ new Vector2(); +const _uvC$1 = /*@__PURE__*/ new Vector2(); + +const _intersectionPoint = /*@__PURE__*/ new Vector3(); +const _intersectionPointWorld = /*@__PURE__*/ new Vector3(); + +class Mesh extends Object3D { + + constructor( geometry = new BufferGeometry(), material = new MeshBasicMaterial() ) { + + super(); + + this.type = 'Mesh'; + + this.geometry = geometry; + this.material = material; + + this.updateMorphTargets(); + + } + + copy( source ) { + + super.copy( source ); + + if ( source.morphTargetInfluences !== undefined ) { + + this.morphTargetInfluences = source.morphTargetInfluences.slice(); + + } + + if ( source.morphTargetDictionary !== undefined ) { + + this.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary ); + + } + + this.material = source.material; + this.geometry = source.geometry; + + return this; + + } + + updateMorphTargets() { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + const morphAttributes = geometry.morphAttributes; + const keys = Object.keys( morphAttributes ); + + if ( keys.length > 0 ) { + + const morphAttribute = morphAttributes[ keys[ 0 ] ]; + + if ( morphAttribute !== undefined ) { + + this.morphTargetInfluences = []; + this.morphTargetDictionary = {}; + + for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) { + + const name = morphAttribute[ m ].name || String( m ); + + this.morphTargetInfluences.push( 0 ); + this.morphTargetDictionary[ name ] = m; + + } + + } + + } + + } else { + + const morphTargets = geometry.morphTargets; + + if ( morphTargets !== undefined && morphTargets.length > 0 ) { + + console.error( 'THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + } + + } + + raycast( raycaster, intersects ) { + + const geometry = this.geometry; + const material = this.material; + const matrixWorld = this.matrixWorld; + + if ( material === undefined ) return; + + // Checking boundingSphere distance to ray + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + _sphere$3.copy( geometry.boundingSphere ); + _sphere$3.applyMatrix4( matrixWorld ); + + if ( raycaster.ray.intersectsSphere( _sphere$3 ) === false ) return; + + // + + _inverseMatrix$2.copy( matrixWorld ).invert(); + _ray$2.copy( raycaster.ray ).applyMatrix4( _inverseMatrix$2 ); + + // Check boundingBox before continuing + + if ( geometry.boundingBox !== null ) { + + if ( _ray$2.intersectsBox( geometry.boundingBox ) === false ) return; + + } + + let intersection; + + if ( geometry.isBufferGeometry ) { + + const index = geometry.index; + const position = geometry.attributes.position; + const morphPosition = geometry.morphAttributes.position; + const morphTargetsRelative = geometry.morphTargetsRelative; + const uv = geometry.attributes.uv; + const uv2 = geometry.attributes.uv2; + const groups = geometry.groups; + const drawRange = geometry.drawRange; + + if ( index !== null ) { + + // indexed buffer geometry + + if ( Array.isArray( material ) ) { + + for ( let i = 0, il = groups.length; i < il; i ++ ) { + + const group = groups[ i ]; + const groupMaterial = material[ group.materialIndex ]; + + const start = Math.max( group.start, drawRange.start ); + const end = Math.min( index.count, Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ) ); + + for ( let j = start, jl = end; j < jl; j += 3 ) { + + const a = index.getX( j ); + const b = index.getX( j + 1 ); + const c = index.getX( j + 2 ); + + intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ); + + if ( intersection ) { + + intersection.faceIndex = Math.floor( j / 3 ); // triangle number in indexed buffer semantics + intersection.face.materialIndex = group.materialIndex; + intersects.push( intersection ); + + } + + } + + } + + } else { + + const start = Math.max( 0, drawRange.start ); + const end = Math.min( index.count, ( drawRange.start + drawRange.count ) ); + + for ( let i = start, il = end; i < il; i += 3 ) { + + const a = index.getX( i ); + const b = index.getX( i + 1 ); + const c = index.getX( i + 2 ); + + intersection = checkBufferGeometryIntersection( this, material, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ); + + if ( intersection ) { + + intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indexed buffer semantics + intersects.push( intersection ); + + } + + } + + } + + } else if ( position !== undefined ) { + + // non-indexed buffer geometry + + if ( Array.isArray( material ) ) { + + for ( let i = 0, il = groups.length; i < il; i ++ ) { + + const group = groups[ i ]; + const groupMaterial = material[ group.materialIndex ]; + + const start = Math.max( group.start, drawRange.start ); + const end = Math.min( position.count, Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ) ); + + for ( let j = start, jl = end; j < jl; j += 3 ) { + + const a = j; + const b = j + 1; + const c = j + 2; + + intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ); + + if ( intersection ) { + + intersection.faceIndex = Math.floor( j / 3 ); // triangle number in non-indexed buffer semantics + intersection.face.materialIndex = group.materialIndex; + intersects.push( intersection ); + + } + + } + + } + + } else { + + const start = Math.max( 0, drawRange.start ); + const end = Math.min( position.count, ( drawRange.start + drawRange.count ) ); + + for ( let i = start, il = end; i < il; i += 3 ) { + + const a = i; + const b = i + 1; + const c = i + 2; + + intersection = checkBufferGeometryIntersection( this, material, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ); + + if ( intersection ) { + + intersection.faceIndex = Math.floor( i / 3 ); // triangle number in non-indexed buffer semantics + intersects.push( intersection ); + + } + + } + + } + + } + + } else if ( geometry.isGeometry ) { + + console.error( 'THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + } + +} + +Mesh.prototype.isMesh = true; + +function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) { + + let intersect; + + if ( material.side === BackSide ) { + + intersect = ray.intersectTriangle( pC, pB, pA, true, point ); + + } else { + + intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point ); + + } + + if ( intersect === null ) return null; + + _intersectionPointWorld.copy( point ); + _intersectionPointWorld.applyMatrix4( object.matrixWorld ); + + const distance = raycaster.ray.origin.distanceTo( _intersectionPointWorld ); + + if ( distance < raycaster.near || distance > raycaster.far ) return null; + + return { + distance: distance, + point: _intersectionPointWorld.clone(), + object: object + }; + +} + +function checkBufferGeometryIntersection( object, material, raycaster, ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ) { + + _vA$1.fromBufferAttribute( position, a ); + _vB$1.fromBufferAttribute( position, b ); + _vC$1.fromBufferAttribute( position, c ); + + const morphInfluences = object.morphTargetInfluences; + + if ( morphPosition && morphInfluences ) { + + _morphA.set( 0, 0, 0 ); + _morphB.set( 0, 0, 0 ); + _morphC.set( 0, 0, 0 ); + + for ( let i = 0, il = morphPosition.length; i < il; i ++ ) { + + const influence = morphInfluences[ i ]; + const morphAttribute = morphPosition[ i ]; + + if ( influence === 0 ) continue; + + _tempA.fromBufferAttribute( morphAttribute, a ); + _tempB.fromBufferAttribute( morphAttribute, b ); + _tempC.fromBufferAttribute( morphAttribute, c ); + + if ( morphTargetsRelative ) { + + _morphA.addScaledVector( _tempA, influence ); + _morphB.addScaledVector( _tempB, influence ); + _morphC.addScaledVector( _tempC, influence ); + + } else { + + _morphA.addScaledVector( _tempA.sub( _vA$1 ), influence ); + _morphB.addScaledVector( _tempB.sub( _vB$1 ), influence ); + _morphC.addScaledVector( _tempC.sub( _vC$1 ), influence ); + + } + + } + + _vA$1.add( _morphA ); + _vB$1.add( _morphB ); + _vC$1.add( _morphC ); + + } + + if ( object.isSkinnedMesh ) { + + object.boneTransform( a, _vA$1 ); + object.boneTransform( b, _vB$1 ); + object.boneTransform( c, _vC$1 ); + + } + + const intersection = checkIntersection( object, material, raycaster, ray, _vA$1, _vB$1, _vC$1, _intersectionPoint ); + + if ( intersection ) { + + if ( uv ) { + + _uvA$1.fromBufferAttribute( uv, a ); + _uvB$1.fromBufferAttribute( uv, b ); + _uvC$1.fromBufferAttribute( uv, c ); + + intersection.uv = Triangle.getUV( _intersectionPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2() ); + + } + + if ( uv2 ) { + + _uvA$1.fromBufferAttribute( uv2, a ); + _uvB$1.fromBufferAttribute( uv2, b ); + _uvC$1.fromBufferAttribute( uv2, c ); + + intersection.uv2 = Triangle.getUV( _intersectionPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2() ); + + } + + const face = { + a: a, + b: b, + c: c, + normal: new Vector3(), + materialIndex: 0 + }; + + Triangle.getNormal( _vA$1, _vB$1, _vC$1, face.normal ); + + intersection.face = face; + + } + + return intersection; + +} + +class BoxGeometry extends BufferGeometry { + + constructor( width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1 ) { + + super(); + + this.type = 'BoxGeometry'; + + this.parameters = { + width: width, + height: height, + depth: depth, + widthSegments: widthSegments, + heightSegments: heightSegments, + depthSegments: depthSegments + }; + + const scope = this; + + // segments + + widthSegments = Math.floor( widthSegments ); + heightSegments = Math.floor( heightSegments ); + depthSegments = Math.floor( depthSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + let numberOfVertices = 0; + let groupStart = 0; + + // build each side of the box geometry + + buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px + buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx + buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py + buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny + buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz + buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) { + + const segmentWidth = width / gridX; + const segmentHeight = height / gridY; + + const widthHalf = width / 2; + const heightHalf = height / 2; + const depthHalf = depth / 2; + + const gridX1 = gridX + 1; + const gridY1 = gridY + 1; + + let vertexCounter = 0; + let groupCount = 0; + + const vector = new Vector3(); + + // generate vertices, normals and uvs + + for ( let iy = 0; iy < gridY1; iy ++ ) { + + const y = iy * segmentHeight - heightHalf; + + for ( let ix = 0; ix < gridX1; ix ++ ) { + + const x = ix * segmentWidth - widthHalf; + + // set values to correct vector component + + vector[ u ] = x * udir; + vector[ v ] = y * vdir; + vector[ w ] = depthHalf; + + // now apply vector to vertex buffer + + vertices.push( vector.x, vector.y, vector.z ); + + // set values to correct vector component + + vector[ u ] = 0; + vector[ v ] = 0; + vector[ w ] = depth > 0 ? 1 : - 1; + + // now apply vector to normal buffer + + normals.push( vector.x, vector.y, vector.z ); + + // uvs + + uvs.push( ix / gridX ); + uvs.push( 1 - ( iy / gridY ) ); + + // counters + + vertexCounter += 1; + + } + + } + + // indices + + // 1. you need three indices to draw a single face + // 2. a single segment consists of two faces + // 3. so we need to generate six (2*3) indices per segment + + for ( let iy = 0; iy < gridY; iy ++ ) { + + for ( let ix = 0; ix < gridX; ix ++ ) { + + const a = numberOfVertices + ix + gridX1 * iy; + const b = numberOfVertices + ix + gridX1 * ( iy + 1 ); + const c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 ); + const d = numberOfVertices + ( ix + 1 ) + gridX1 * iy; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + // increase counter + + groupCount += 6; + + } + + } + + // add a group to the geometry. this will ensure multi material support + + scope.addGroup( groupStart, groupCount, materialIndex ); + + // calculate new start value for groups + + groupStart += groupCount; + + // update total number of vertices + + numberOfVertices += vertexCounter; + + } + + } + + static fromJSON( data ) { + + return new BoxGeometry( data.width, data.height, data.depth, data.widthSegments, data.heightSegments, data.depthSegments ); + + } + +} + +/** + * Uniform Utilities + */ + +function cloneUniforms( src ) { + + const dst = {}; + + for ( const u in src ) { + + dst[ u ] = {}; + + for ( const p in src[ u ] ) { + + const property = src[ u ][ p ]; + + if ( property && ( property.isColor || + property.isMatrix3 || property.isMatrix4 || + property.isVector2 || property.isVector3 || property.isVector4 || + property.isTexture || property.isQuaternion ) ) { + + dst[ u ][ p ] = property.clone(); + + } else if ( Array.isArray( property ) ) { + + dst[ u ][ p ] = property.slice(); + + } else { + + dst[ u ][ p ] = property; + + } + + } + + } + + return dst; + +} + +function mergeUniforms( uniforms ) { + + const merged = {}; + + for ( let u = 0; u < uniforms.length; u ++ ) { + + const tmp = cloneUniforms( uniforms[ u ] ); + + for ( const p in tmp ) { + + merged[ p ] = tmp[ p ]; + + } + + } + + return merged; + +} + +// Legacy + +const UniformsUtils = { clone: cloneUniforms, merge: mergeUniforms }; + +var default_vertex = "void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}"; + +var default_fragment = "void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}"; + +/** + * parameters = { + * defines: { "label" : "value" }, + * uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } }, + * + * fragmentShader: , + * vertexShader: , + * + * wireframe: , + * wireframeLinewidth: , + * + * lights: + * } + */ + +class ShaderMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'ShaderMaterial'; + + this.defines = {}; + this.uniforms = {}; + + this.vertexShader = default_vertex; + this.fragmentShader = default_fragment; + + this.linewidth = 1; + + this.wireframe = false; + this.wireframeLinewidth = 1; + + this.fog = false; // set to use scene fog + this.lights = false; // set to use scene lights + this.clipping = false; // set to use user-defined clipping planes + + this.extensions = { + derivatives: false, // set to use derivatives + fragDepth: false, // set to use fragment depth values + drawBuffers: false, // set to use draw buffers + shaderTextureLOD: false // set to use shader texture LOD + }; + + // When rendered geometry doesn't include these attributes but the material does, + // use these default values in WebGL. This avoids errors when buffer data is missing. + this.defaultAttributeValues = { + 'color': [ 1, 1, 1 ], + 'uv': [ 0, 0 ], + 'uv2': [ 0, 0 ] + }; + + this.index0AttributeName = undefined; + this.uniformsNeedUpdate = false; + + this.glslVersion = null; + + if ( parameters !== undefined ) { + + if ( parameters.attributes !== undefined ) { + + console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' ); + + } + + this.setValues( parameters ); + + } + + } + + copy( source ) { + + super.copy( source ); + + this.fragmentShader = source.fragmentShader; + this.vertexShader = source.vertexShader; + + this.uniforms = cloneUniforms( source.uniforms ); + + this.defines = Object.assign( {}, source.defines ); + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + + this.lights = source.lights; + this.clipping = source.clipping; + + this.extensions = Object.assign( {}, source.extensions ); + + this.glslVersion = source.glslVersion; + + return this; + + } + + toJSON( meta ) { + + const data = super.toJSON( meta ); + + data.glslVersion = this.glslVersion; + data.uniforms = {}; + + for ( const name in this.uniforms ) { + + const uniform = this.uniforms[ name ]; + const value = uniform.value; + + if ( value && value.isTexture ) { + + data.uniforms[ name ] = { + type: 't', + value: value.toJSON( meta ).uuid + }; + + } else if ( value && value.isColor ) { + + data.uniforms[ name ] = { + type: 'c', + value: value.getHex() + }; + + } else if ( value && value.isVector2 ) { + + data.uniforms[ name ] = { + type: 'v2', + value: value.toArray() + }; + + } else if ( value && value.isVector3 ) { + + data.uniforms[ name ] = { + type: 'v3', + value: value.toArray() + }; + + } else if ( value && value.isVector4 ) { + + data.uniforms[ name ] = { + type: 'v4', + value: value.toArray() + }; + + } else if ( value && value.isMatrix3 ) { + + data.uniforms[ name ] = { + type: 'm3', + value: value.toArray() + }; + + } else if ( value && value.isMatrix4 ) { + + data.uniforms[ name ] = { + type: 'm4', + value: value.toArray() + }; + + } else { + + data.uniforms[ name ] = { + value: value + }; + + // note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far + + } + + } + + if ( Object.keys( this.defines ).length > 0 ) data.defines = this.defines; + + data.vertexShader = this.vertexShader; + data.fragmentShader = this.fragmentShader; + + const extensions = {}; + + for ( const key in this.extensions ) { + + if ( this.extensions[ key ] === true ) extensions[ key ] = true; + + } + + if ( Object.keys( extensions ).length > 0 ) data.extensions = extensions; + + return data; + + } + +} + +ShaderMaterial.prototype.isShaderMaterial = true; + +class Camera extends Object3D { + + constructor() { + + super(); + + this.type = 'Camera'; + + this.matrixWorldInverse = new Matrix4(); + + this.projectionMatrix = new Matrix4(); + this.projectionMatrixInverse = new Matrix4(); + + } + + copy( source, recursive ) { + + super.copy( source, recursive ); + + this.matrixWorldInverse.copy( source.matrixWorldInverse ); + + this.projectionMatrix.copy( source.projectionMatrix ); + this.projectionMatrixInverse.copy( source.projectionMatrixInverse ); + + return this; + + } + + getWorldDirection( target ) { + + this.updateWorldMatrix( true, false ); + + const e = this.matrixWorld.elements; + + return target.set( - e[ 8 ], - e[ 9 ], - e[ 10 ] ).normalize(); + + } + + updateMatrixWorld( force ) { + + super.updateMatrixWorld( force ); + + this.matrixWorldInverse.copy( this.matrixWorld ).invert(); + + } + + updateWorldMatrix( updateParents, updateChildren ) { + + super.updateWorldMatrix( updateParents, updateChildren ); + + this.matrixWorldInverse.copy( this.matrixWorld ).invert(); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + +} + +Camera.prototype.isCamera = true; + +class PerspectiveCamera extends Camera { + + constructor( fov = 50, aspect = 1, near = 0.1, far = 2000 ) { + + super(); + + this.type = 'PerspectiveCamera'; + + this.fov = fov; + this.zoom = 1; + + this.near = near; + this.far = far; + this.focus = 10; + + this.aspect = aspect; + this.view = null; + + this.filmGauge = 35; // width of the film (default in millimeters) + this.filmOffset = 0; // horizontal film offset (same unit as gauge) + + this.updateProjectionMatrix(); + + } + + copy( source, recursive ) { + + super.copy( source, recursive ); + + this.fov = source.fov; + this.zoom = source.zoom; + + this.near = source.near; + this.far = source.far; + this.focus = source.focus; + + this.aspect = source.aspect; + this.view = source.view === null ? null : Object.assign( {}, source.view ); + + this.filmGauge = source.filmGauge; + this.filmOffset = source.filmOffset; + + return this; + + } + + /** + * Sets the FOV by focal length in respect to the current .filmGauge. + * + * The default film gauge is 35, so that the focal length can be specified for + * a 35mm (full frame) camera. + * + * Values for focal length and film gauge must have the same unit. + */ + setFocalLength( focalLength ) { + + /** see {@link http://www.bobatkins.com/photography/technical/field_of_view.html} */ + const vExtentSlope = 0.5 * this.getFilmHeight() / focalLength; + + this.fov = RAD2DEG * 2 * Math.atan( vExtentSlope ); + this.updateProjectionMatrix(); + + } + + /** + * Calculates the focal length from the current .fov and .filmGauge. + */ + getFocalLength() { + + const vExtentSlope = Math.tan( DEG2RAD * 0.5 * this.fov ); + + return 0.5 * this.getFilmHeight() / vExtentSlope; + + } + + getEffectiveFOV() { + + return RAD2DEG * 2 * Math.atan( + Math.tan( DEG2RAD * 0.5 * this.fov ) / this.zoom ); + + } + + getFilmWidth() { + + // film not completely covered in portrait format (aspect < 1) + return this.filmGauge * Math.min( this.aspect, 1 ); + + } + + getFilmHeight() { + + // film not completely covered in landscape format (aspect > 1) + return this.filmGauge / Math.max( this.aspect, 1 ); + + } + + /** + * Sets an offset in a larger frustum. This is useful for multi-window or + * multi-monitor/multi-machine setups. + * + * For example, if you have 3x2 monitors and each monitor is 1920x1080 and + * the monitors are in grid like this + * + * +---+---+---+ + * | A | B | C | + * +---+---+---+ + * | D | E | F | + * +---+---+---+ + * + * then for each monitor you would call it like this + * + * const w = 1920; + * const h = 1080; + * const fullWidth = w * 3; + * const fullHeight = h * 2; + * + * --A-- + * camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h ); + * --B-- + * camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h ); + * --C-- + * camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h ); + * --D-- + * camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h ); + * --E-- + * camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h ); + * --F-- + * camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h ); + * + * Note there is no reason monitors have to be the same size or in a grid. + */ + setViewOffset( fullWidth, fullHeight, x, y, width, height ) { + + this.aspect = fullWidth / fullHeight; + + if ( this.view === null ) { + + this.view = { + enabled: true, + fullWidth: 1, + fullHeight: 1, + offsetX: 0, + offsetY: 0, + width: 1, + height: 1 + }; + + } + + this.view.enabled = true; + this.view.fullWidth = fullWidth; + this.view.fullHeight = fullHeight; + this.view.offsetX = x; + this.view.offsetY = y; + this.view.width = width; + this.view.height = height; + + this.updateProjectionMatrix(); + + } + + clearViewOffset() { + + if ( this.view !== null ) { + + this.view.enabled = false; + + } + + this.updateProjectionMatrix(); + + } + + updateProjectionMatrix() { + + const near = this.near; + let top = near * Math.tan( DEG2RAD * 0.5 * this.fov ) / this.zoom; + let height = 2 * top; + let width = this.aspect * height; + let left = - 0.5 * width; + const view = this.view; + + if ( this.view !== null && this.view.enabled ) { + + const fullWidth = view.fullWidth, + fullHeight = view.fullHeight; + + left += view.offsetX * width / fullWidth; + top -= view.offsetY * height / fullHeight; + width *= view.width / fullWidth; + height *= view.height / fullHeight; + + } + + const skew = this.filmOffset; + if ( skew !== 0 ) left += near * skew / this.getFilmWidth(); + + this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far ); + + this.projectionMatrixInverse.copy( this.projectionMatrix ).invert(); + + } + + toJSON( meta ) { + + const data = super.toJSON( meta ); + + data.object.fov = this.fov; + data.object.zoom = this.zoom; + + data.object.near = this.near; + data.object.far = this.far; + data.object.focus = this.focus; + + data.object.aspect = this.aspect; + + if ( this.view !== null ) data.object.view = Object.assign( {}, this.view ); + + data.object.filmGauge = this.filmGauge; + data.object.filmOffset = this.filmOffset; + + return data; + + } + +} + +PerspectiveCamera.prototype.isPerspectiveCamera = true; + +const fov = 90, aspect = 1; + +class CubeCamera extends Object3D { + + constructor( near, far, renderTarget ) { + + super(); + + this.type = 'CubeCamera'; + + if ( renderTarget.isWebGLCubeRenderTarget !== true ) { + + console.error( 'THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.' ); + return; + + } + + this.renderTarget = renderTarget; + + const cameraPX = new PerspectiveCamera( fov, aspect, near, far ); + cameraPX.layers = this.layers; + cameraPX.up.set( 0, - 1, 0 ); + cameraPX.lookAt( new Vector3( 1, 0, 0 ) ); + this.add( cameraPX ); + + const cameraNX = new PerspectiveCamera( fov, aspect, near, far ); + cameraNX.layers = this.layers; + cameraNX.up.set( 0, - 1, 0 ); + cameraNX.lookAt( new Vector3( - 1, 0, 0 ) ); + this.add( cameraNX ); + + const cameraPY = new PerspectiveCamera( fov, aspect, near, far ); + cameraPY.layers = this.layers; + cameraPY.up.set( 0, 0, 1 ); + cameraPY.lookAt( new Vector3( 0, 1, 0 ) ); + this.add( cameraPY ); + + const cameraNY = new PerspectiveCamera( fov, aspect, near, far ); + cameraNY.layers = this.layers; + cameraNY.up.set( 0, 0, - 1 ); + cameraNY.lookAt( new Vector3( 0, - 1, 0 ) ); + this.add( cameraNY ); + + const cameraPZ = new PerspectiveCamera( fov, aspect, near, far ); + cameraPZ.layers = this.layers; + cameraPZ.up.set( 0, - 1, 0 ); + cameraPZ.lookAt( new Vector3( 0, 0, 1 ) ); + this.add( cameraPZ ); + + const cameraNZ = new PerspectiveCamera( fov, aspect, near, far ); + cameraNZ.layers = this.layers; + cameraNZ.up.set( 0, - 1, 0 ); + cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) ); + this.add( cameraNZ ); + + } + + update( renderer, scene ) { + + if ( this.parent === null ) this.updateMatrixWorld(); + + const renderTarget = this.renderTarget; + + const [ cameraPX, cameraNX, cameraPY, cameraNY, cameraPZ, cameraNZ ] = this.children; + + const currentXrEnabled = renderer.xr.enabled; + const currentRenderTarget = renderer.getRenderTarget(); + + renderer.xr.enabled = false; + + const generateMipmaps = renderTarget.texture.generateMipmaps; + + renderTarget.texture.generateMipmaps = false; + + renderer.setRenderTarget( renderTarget, 0 ); + renderer.render( scene, cameraPX ); + + renderer.setRenderTarget( renderTarget, 1 ); + renderer.render( scene, cameraNX ); + + renderer.setRenderTarget( renderTarget, 2 ); + renderer.render( scene, cameraPY ); + + renderer.setRenderTarget( renderTarget, 3 ); + renderer.render( scene, cameraNY ); + + renderer.setRenderTarget( renderTarget, 4 ); + renderer.render( scene, cameraPZ ); + + renderTarget.texture.generateMipmaps = generateMipmaps; + + renderer.setRenderTarget( renderTarget, 5 ); + renderer.render( scene, cameraNZ ); + + renderer.setRenderTarget( currentRenderTarget ); + + renderer.xr.enabled = currentXrEnabled; + + } + +} + +class CubeTexture extends Texture { + + constructor( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) { + + images = images !== undefined ? images : []; + mapping = mapping !== undefined ? mapping : CubeReflectionMapping; + + super( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ); + + this.flipY = false; + + } + + get images() { + + return this.image; + + } + + set images( value ) { + + this.image = value; + + } + +} + +CubeTexture.prototype.isCubeTexture = true; + +class WebGLCubeRenderTarget extends WebGLRenderTarget { + + constructor( size, options, dummy ) { + + if ( Number.isInteger( options ) ) { + + console.warn( 'THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )' ); + + options = dummy; + + } + + super( size, size, options ); + + options = options || {}; + + // By convention -- likely based on the RenderMan spec from the 1990's -- cube maps are specified by WebGL (and three.js) + // in a coordinate system in which positive-x is to the right when looking up the positive-z axis -- in other words, + // in a left-handed coordinate system. By continuing this convention, preexisting cube maps continued to render correctly. + + // three.js uses a right-handed coordinate system. So environment maps used in three.js appear to have px and nx swapped + // and the flag isRenderTargetTexture controls this conversion. The flip is not required when using WebGLCubeRenderTarget.texture + // as a cube texture (this is detected when isRenderTargetTexture is set to true for cube textures). + + this.texture = new CubeTexture( undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding ); + this.texture.isRenderTargetTexture = true; + + this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false; + this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter; + + this.texture._needsFlipEnvMap = false; + + } + + fromEquirectangularTexture( renderer, texture ) { + + this.texture.type = texture.type; + this.texture.format = RGBAFormat; // see #18859 + this.texture.encoding = texture.encoding; + + this.texture.generateMipmaps = texture.generateMipmaps; + this.texture.minFilter = texture.minFilter; + this.texture.magFilter = texture.magFilter; + + const shader = { + + uniforms: { + tEquirect: { value: null }, + }, + + vertexShader: /* glsl */` + + varying vec3 vWorldDirection; + + vec3 transformDirection( in vec3 dir, in mat4 matrix ) { + + return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz ); + + } + + void main() { + + vWorldDirection = transformDirection( position, modelMatrix ); + + #include + #include + + } + `, + + fragmentShader: /* glsl */` + + uniform sampler2D tEquirect; + + varying vec3 vWorldDirection; + + #include + + void main() { + + vec3 direction = normalize( vWorldDirection ); + + vec2 sampleUV = equirectUv( direction ); + + gl_FragColor = texture2D( tEquirect, sampleUV ); + + } + ` + }; + + const geometry = new BoxGeometry( 5, 5, 5 ); + + const material = new ShaderMaterial( { + + name: 'CubemapFromEquirect', + + uniforms: cloneUniforms( shader.uniforms ), + vertexShader: shader.vertexShader, + fragmentShader: shader.fragmentShader, + side: BackSide, + blending: NoBlending + + } ); + + material.uniforms.tEquirect.value = texture; + + const mesh = new Mesh( geometry, material ); + + const currentMinFilter = texture.minFilter; + + // Avoid blurred poles + if ( texture.minFilter === LinearMipmapLinearFilter ) texture.minFilter = LinearFilter; + + const camera = new CubeCamera( 1, 10, this ); + camera.update( renderer, mesh ); + + texture.minFilter = currentMinFilter; + + mesh.geometry.dispose(); + mesh.material.dispose(); + + return this; + + } + + clear( renderer, color, depth, stencil ) { + + const currentRenderTarget = renderer.getRenderTarget(); + + for ( let i = 0; i < 6; i ++ ) { + + renderer.setRenderTarget( this, i ); + + renderer.clear( color, depth, stencil ); + + } + + renderer.setRenderTarget( currentRenderTarget ); + + } + +} + +WebGLCubeRenderTarget.prototype.isWebGLCubeRenderTarget = true; + +const _vector1 = /*@__PURE__*/ new Vector3(); +const _vector2 = /*@__PURE__*/ new Vector3(); +const _normalMatrix = /*@__PURE__*/ new Matrix3(); + +class Plane { + + constructor( normal = new Vector3( 1, 0, 0 ), constant = 0 ) { + + // normal is assumed to be normalized + + this.normal = normal; + this.constant = constant; + + } + + set( normal, constant ) { + + this.normal.copy( normal ); + this.constant = constant; + + return this; + + } + + setComponents( x, y, z, w ) { + + this.normal.set( x, y, z ); + this.constant = w; + + return this; + + } + + setFromNormalAndCoplanarPoint( normal, point ) { + + this.normal.copy( normal ); + this.constant = - point.dot( this.normal ); + + return this; + + } + + setFromCoplanarPoints( a, b, c ) { + + const normal = _vector1.subVectors( c, b ).cross( _vector2.subVectors( a, b ) ).normalize(); + + // Q: should an error be thrown if normal is zero (e.g. degenerate plane)? + + this.setFromNormalAndCoplanarPoint( normal, a ); + + return this; + + } + + copy( plane ) { + + this.normal.copy( plane.normal ); + this.constant = plane.constant; + + return this; + + } + + normalize() { + + // Note: will lead to a divide by zero if the plane is invalid. + + const inverseNormalLength = 1.0 / this.normal.length(); + this.normal.multiplyScalar( inverseNormalLength ); + this.constant *= inverseNormalLength; + + return this; + + } + + negate() { + + this.constant *= - 1; + this.normal.negate(); + + return this; + + } + + distanceToPoint( point ) { + + return this.normal.dot( point ) + this.constant; + + } + + distanceToSphere( sphere ) { + + return this.distanceToPoint( sphere.center ) - sphere.radius; + + } + + projectPoint( point, target ) { + + return target.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point ); + + } + + intersectLine( line, target ) { + + const direction = line.delta( _vector1 ); + + const denominator = this.normal.dot( direction ); + + if ( denominator === 0 ) { + + // line is coplanar, return origin + if ( this.distanceToPoint( line.start ) === 0 ) { + + return target.copy( line.start ); + + } + + // Unsure if this is the correct method to handle this case. + return null; + + } + + const t = - ( line.start.dot( this.normal ) + this.constant ) / denominator; + + if ( t < 0 || t > 1 ) { + + return null; + + } + + return target.copy( direction ).multiplyScalar( t ).add( line.start ); + + } + + intersectsLine( line ) { + + // Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it. + + const startSign = this.distanceToPoint( line.start ); + const endSign = this.distanceToPoint( line.end ); + + return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 ); + + } + + intersectsBox( box ) { + + return box.intersectsPlane( this ); + + } + + intersectsSphere( sphere ) { + + return sphere.intersectsPlane( this ); + + } + + coplanarPoint( target ) { + + return target.copy( this.normal ).multiplyScalar( - this.constant ); + + } + + applyMatrix4( matrix, optionalNormalMatrix ) { + + const normalMatrix = optionalNormalMatrix || _normalMatrix.getNormalMatrix( matrix ); + + const referencePoint = this.coplanarPoint( _vector1 ).applyMatrix4( matrix ); + + const normal = this.normal.applyMatrix3( normalMatrix ).normalize(); + + this.constant = - referencePoint.dot( normal ); + + return this; + + } + + translate( offset ) { + + this.constant -= offset.dot( this.normal ); + + return this; + + } + + equals( plane ) { + + return plane.normal.equals( this.normal ) && ( plane.constant === this.constant ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + +} + +Plane.prototype.isPlane = true; + +const _sphere$2 = /*@__PURE__*/ new Sphere(); +const _vector$7 = /*@__PURE__*/ new Vector3(); + +class Frustum { + + constructor( p0 = new Plane(), p1 = new Plane(), p2 = new Plane(), p3 = new Plane(), p4 = new Plane(), p5 = new Plane() ) { + + this.planes = [ p0, p1, p2, p3, p4, p5 ]; + + } + + set( p0, p1, p2, p3, p4, p5 ) { + + const planes = this.planes; + + planes[ 0 ].copy( p0 ); + planes[ 1 ].copy( p1 ); + planes[ 2 ].copy( p2 ); + planes[ 3 ].copy( p3 ); + planes[ 4 ].copy( p4 ); + planes[ 5 ].copy( p5 ); + + return this; + + } + + copy( frustum ) { + + const planes = this.planes; + + for ( let i = 0; i < 6; i ++ ) { + + planes[ i ].copy( frustum.planes[ i ] ); + + } + + return this; + + } + + setFromProjectionMatrix( m ) { + + const planes = this.planes; + const me = m.elements; + const me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ]; + const me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ]; + const me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ]; + const me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ]; + + planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize(); + planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize(); + planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize(); + planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize(); + planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize(); + planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize(); + + return this; + + } + + intersectsObject( object ) { + + const geometry = object.geometry; + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + _sphere$2.copy( geometry.boundingSphere ).applyMatrix4( object.matrixWorld ); + + return this.intersectsSphere( _sphere$2 ); + + } + + intersectsSprite( sprite ) { + + _sphere$2.center.set( 0, 0, 0 ); + _sphere$2.radius = 0.7071067811865476; + _sphere$2.applyMatrix4( sprite.matrixWorld ); + + return this.intersectsSphere( _sphere$2 ); + + } + + intersectsSphere( sphere ) { + + const planes = this.planes; + const center = sphere.center; + const negRadius = - sphere.radius; + + for ( let i = 0; i < 6; i ++ ) { + + const distance = planes[ i ].distanceToPoint( center ); + + if ( distance < negRadius ) { + + return false; + + } + + } + + return true; + + } + + intersectsBox( box ) { + + const planes = this.planes; + + for ( let i = 0; i < 6; i ++ ) { + + const plane = planes[ i ]; + + // corner at max distance + + _vector$7.x = plane.normal.x > 0 ? box.max.x : box.min.x; + _vector$7.y = plane.normal.y > 0 ? box.max.y : box.min.y; + _vector$7.z = plane.normal.z > 0 ? box.max.z : box.min.z; + + if ( plane.distanceToPoint( _vector$7 ) < 0 ) { + + return false; + + } + + } + + return true; + + } + + containsPoint( point ) { + + const planes = this.planes; + + for ( let i = 0; i < 6; i ++ ) { + + if ( planes[ i ].distanceToPoint( point ) < 0 ) { + + return false; + + } + + } + + return true; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + +} + +function WebGLAnimation() { + + let context = null; + let isAnimating = false; + let animationLoop = null; + let requestId = null; + + function onAnimationFrame( time, frame ) { + + animationLoop( time, frame ); + + requestId = context.requestAnimationFrame( onAnimationFrame ); + + } + + return { + + start: function () { + + if ( isAnimating === true ) return; + if ( animationLoop === null ) return; + + requestId = context.requestAnimationFrame( onAnimationFrame ); + + isAnimating = true; + + }, + + stop: function () { + + context.cancelAnimationFrame( requestId ); + + isAnimating = false; + + }, + + setAnimationLoop: function ( callback ) { + + animationLoop = callback; + + }, + + setContext: function ( value ) { + + context = value; + + } + + }; + +} + +function WebGLAttributes( gl, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + const buffers = new WeakMap(); + + function createBuffer( attribute, bufferType ) { + + const array = attribute.array; + const usage = attribute.usage; + + const buffer = gl.createBuffer(); + + gl.bindBuffer( bufferType, buffer ); + gl.bufferData( bufferType, array, usage ); + + attribute.onUploadCallback(); + + let type = 5126; + + if ( array instanceof Float32Array ) { + + type = 5126; + + } else if ( array instanceof Float64Array ) { + + console.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' ); + + } else if ( array instanceof Uint16Array ) { + + if ( attribute.isFloat16BufferAttribute ) { + + if ( isWebGL2 ) { + + type = 5131; + + } else { + + console.warn( 'THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2.' ); + + } + + } else { + + type = 5123; + + } + + } else if ( array instanceof Int16Array ) { + + type = 5122; + + } else if ( array instanceof Uint32Array ) { + + type = 5125; + + } else if ( array instanceof Int32Array ) { + + type = 5124; + + } else if ( array instanceof Int8Array ) { + + type = 5120; + + } else if ( array instanceof Uint8Array ) { + + type = 5121; + + } else if ( array instanceof Uint8ClampedArray ) { + + type = 5121; + + } + + return { + buffer: buffer, + type: type, + bytesPerElement: array.BYTES_PER_ELEMENT, + version: attribute.version + }; + + } + + function updateBuffer( buffer, attribute, bufferType ) { + + const array = attribute.array; + const updateRange = attribute.updateRange; + + gl.bindBuffer( bufferType, buffer ); + + if ( updateRange.count === - 1 ) { + + // Not using update ranges + + gl.bufferSubData( bufferType, 0, array ); + + } else { + + if ( isWebGL2 ) { + + gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, + array, updateRange.offset, updateRange.count ); + + } else { + + gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, + array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) ); + + } + + updateRange.count = - 1; // reset range + + } + + } + + // + + function get( attribute ) { + + if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data; + + return buffers.get( attribute ); + + } + + function remove( attribute ) { + + if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data; + + const data = buffers.get( attribute ); + + if ( data ) { + + gl.deleteBuffer( data.buffer ); + + buffers.delete( attribute ); + + } + + } + + function update( attribute, bufferType ) { + + if ( attribute.isGLBufferAttribute ) { + + const cached = buffers.get( attribute ); + + if ( ! cached || cached.version < attribute.version ) { + + buffers.set( attribute, { + buffer: attribute.buffer, + type: attribute.type, + bytesPerElement: attribute.elementSize, + version: attribute.version + } ); + + } + + return; + + } + + if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data; + + const data = buffers.get( attribute ); + + if ( data === undefined ) { + + buffers.set( attribute, createBuffer( attribute, bufferType ) ); + + } else if ( data.version < attribute.version ) { + + updateBuffer( data.buffer, attribute, bufferType ); + + data.version = attribute.version; + + } + + } + + return { + + get: get, + remove: remove, + update: update + + }; + +} + +class PlaneGeometry extends BufferGeometry { + + constructor( width = 1, height = 1, widthSegments = 1, heightSegments = 1 ) { + + super(); + this.type = 'PlaneGeometry'; + + this.parameters = { + width: width, + height: height, + widthSegments: widthSegments, + heightSegments: heightSegments + }; + + const width_half = width / 2; + const height_half = height / 2; + + const gridX = Math.floor( widthSegments ); + const gridY = Math.floor( heightSegments ); + + const gridX1 = gridX + 1; + const gridY1 = gridY + 1; + + const segment_width = width / gridX; + const segment_height = height / gridY; + + // + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + for ( let iy = 0; iy < gridY1; iy ++ ) { + + const y = iy * segment_height - height_half; + + for ( let ix = 0; ix < gridX1; ix ++ ) { + + const x = ix * segment_width - width_half; + + vertices.push( x, - y, 0 ); + + normals.push( 0, 0, 1 ); + + uvs.push( ix / gridX ); + uvs.push( 1 - ( iy / gridY ) ); + + } + + } + + for ( let iy = 0; iy < gridY; iy ++ ) { + + for ( let ix = 0; ix < gridX; ix ++ ) { + + const a = ix + gridX1 * iy; + const b = ix + gridX1 * ( iy + 1 ); + const c = ( ix + 1 ) + gridX1 * ( iy + 1 ); + const d = ( ix + 1 ) + gridX1 * iy; + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + + static fromJSON( data ) { + + return new PlaneGeometry( data.width, data.height, data.widthSegments, data.heightSegments ); + + } + +} + +var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif"; + +var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif"; + +var alphatest_fragment = "#ifdef USE_ALPHATEST\n\tif ( diffuseColor.a < alphaTest ) discard;\n#endif"; + +var alphatest_pars_fragment = "#ifdef USE_ALPHATEST\n\tuniform float alphaTest;\n#endif"; + +var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.roughness );\n\t#endif\n#endif"; + +var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif"; + +var begin_vertex = "vec3 transformed = vec3( position );"; + +var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif"; + +var bsdfs = "vec3 BRDF_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n}\nfloat V_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_GGX( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 f0, const in float f90, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( f0, f90, dotVH );\n\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( V * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_BlinnPhong( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, 1.0, dotVH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie( float roughness, float dotNH ) {\n\tfloat alpha = pow2( roughness );\n\tfloat invAlpha = 1.0 / alpha;\n\tfloat cos2h = dotNH * dotNH;\n\tfloat sin2h = max( 1.0 - cos2h, 0.0078125 );\n\treturn ( 2.0 + invAlpha ) * pow( sin2h, invAlpha * 0.5 ) / ( 2.0 * PI );\n}\nfloat V_Neubelt( float dotNV, float dotNL ) {\n\treturn saturate( 1.0 / ( 4.0 * ( dotNL + dotNV - dotNL * dotNV ) ) );\n}\nvec3 BRDF_Sheen( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, vec3 sheenColor, const in float sheenRoughness ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat D = D_Charlie( sheenRoughness, dotNH );\n\tfloat V = V_Neubelt( dotNV, dotNL );\n\treturn sheenColor * ( D * V );\n}\n#endif"; + +var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif"; + +var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif"; + +var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif"; + +var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif"; + +var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif"; + +var color_fragment = "#if defined( USE_COLOR_ALPHA )\n\tdiffuseColor *= vColor;\n#elif defined( USE_COLOR )\n\tdiffuseColor.rgb *= vColor;\n#endif"; + +var color_pars_fragment = "#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR )\n\tvarying vec3 vColor;\n#endif"; + +var color_pars_vertex = "#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif"; + +var color_vertex = "#if defined( USE_COLOR_ALPHA )\n\tvColor = vec4( 1.0 );\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor *= color;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif"; + +var common = "#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement( a ) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat max3( const in vec3 v ) { return max( max( v.x, v.y ), v.z ); }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract( sin( sn ) * c );\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}"; + +var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif"; + +var defaultnormal_vertex = "vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif"; + +var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif"; + +var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif"; + +var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif"; + +var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif"; + +var encodings_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );"; + +var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}"; + +var envmap_fragment = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif"; + +var envmap_common_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif"; + +var envmap_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif"; + +var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif"; + +var envmap_vertex = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif"; + +var fog_vertex = "#ifdef USE_FOG\n\tvFogDepth = - mvPosition.z;\n#endif"; + +var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying float vFogDepth;\n#endif"; + +var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * vFogDepth * vFogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, vFogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif"; + +var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float vFogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif"; + +var gradientmap_pars_fragment = "#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}"; + +var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel = texture2D( lightMap, vUv2 );\n\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tlightMapIrradiance *= PI;\n\t#endif\n\treflectedLight.indirectDiffuse += lightMapIrradiance;\n#endif"; + +var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif"; + +var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry.normal );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry.normal );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointLightInfo( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( - dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotLightInfo( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( - dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalLightInfo( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( - dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry.normal );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry.normal );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif"; + +var lights_pars_begin = "uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in vec3 normal ) {\n\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\treturn irradiance;\n}\nfloat getDistanceAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\t#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tif ( cutoffDistance > 0.0 ) {\n\t\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\t}\n\t\treturn distanceFalloff;\n\t#else\n\t\tif ( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\t\treturn pow( saturate( - lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t\t}\n\t\treturn 1.0;\n\t#endif\n}\nfloat getSpotAttenuation( const in float coneCosine, const in float penumbraCosine, const in float angleCosine ) {\n\treturn smoothstep( coneCosine, penumbraCosine, angleCosine );\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalLightInfo( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tlight.color = directionalLight.color;\n\t\tlight.direction = directionalLight.direction;\n\t\tlight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointLightInfo( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tlight.color = pointLight.color;\n\t\tlight.color *= getDistanceAttenuation( lightDistance, pointLight.distance, pointLight.decay );\n\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotLightInfo( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat angleCos = dot( light.direction, spotLight.direction );\n\t\tfloat spotAttenuation = getSpotAttenuation( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\tif ( spotAttenuation > 0.0 ) {\n\t\t\tfloat lightDistance = length( lVector );\n\t\t\tlight.color = spotLight.color * spotAttenuation;\n\t\t\tlight.color *= getDistanceAttenuation( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t\t} else {\n\t\t\tlight.color = vec3( 0.0 );\n\t\t\tlight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in vec3 normal ) {\n\t\tfloat dotNL = dot( normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\treturn irradiance;\n\t}\n#endif"; + +var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getIBLIrradiance( const in vec3 normal ) {\n\t\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\tvec3 getIBLRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness ) {\n\t\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 reflectVec;\n\t\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\t\treflectVec = reflect( - viewDir, normal );\n\t\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t\t#else\n\t\t\t\treflectVec = refract( - viewDir, normal, refractionRatio );\n\t\t\t#endif\n\t\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t\treturn envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n#endif"; + +var lights_toon_fragment = "ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;"; + +var lights_toon_pars_fragment = "varying vec3 vViewPosition;\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)"; + +var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;"; + +var lights_phong_pars_fragment = "varying vec3 vViewPosition;\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_BlinnPhong( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)"; + +var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.roughness = max( roughnessFactor, 0.0525 );material.roughness += geometryRoughness;\nmaterial.roughness = min( material.roughness, 1.0 );\n#ifdef IOR\n\t#ifdef SPECULAR\n\t\tfloat specularIntensityFactor = specularIntensity;\n\t\tvec3 specularColorFactor = specularColor;\n\t\t#ifdef USE_SPECULARINTENSITYMAP\n\t\t\tspecularIntensityFactor *= texture2D( specularIntensityMap, vUv ).a;\n\t\t#endif\n\t\t#ifdef USE_SPECULARCOLORMAP\n\t\t\tspecularColorFactor *= specularColorMapTexelToLinear( texture2D( specularColorMap, vUv ) ).rgb;\n\t\t#endif\n\t\tmaterial.specularF90 = mix( specularIntensityFactor, 1.0, metalnessFactor );\n\t#else\n\t\tfloat specularIntensityFactor = 1.0;\n\t\tvec3 specularColorFactor = vec3( 1.0 );\n\t\tmaterial.specularF90 = 1.0;\n\t#endif\n\tmaterial.specularColor = mix( min( pow2( ( ior - 1.0 ) / ( ior + 1.0 ) ) * specularColorFactor, vec3( 1.0 ) ) * specularIntensityFactor, diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.specularF90 = 1.0;\n#endif\n#ifdef USE_CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\tmaterial.clearcoatF0 = vec3( 0.04 );\n\tmaterial.clearcoatF90 = 1.0;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheenColor;\n\t#ifdef USE_SHEENCOLORMAP\n\t\tmaterial.sheenColor *= sheenColorMapTexelToLinear( texture2D( sheenColorMap, vUv ) ).rgb;\n\t#endif\n\tmaterial.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 );\n\t#ifdef USE_SHEENROUGHNESSMAP\n\t\tmaterial.sheenRoughness *= texture2D( sheenRoughnessMap, vUv ).a;\n\t#endif\n#endif"; + +var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat roughness;\n\tvec3 specularColor;\n\tfloat specularF90;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat clearcoat;\n\t\tfloat clearcoatRoughness;\n\t\tvec3 clearcoatF0;\n\t\tfloat clearcoatF90;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tvec3 sheenColor;\n\t\tfloat sheenRoughness;\n\t#endif\n};\nvec3 clearcoatSpecular = vec3( 0.0 );\nvec2 DFGApprox( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 fab = vec2( - 1.04, 1.04 ) * a004 + r.zw;\n\treturn fab;\n}\nvec3 EnvironmentBRDF( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\treturn specularColor * fab.x + specularF90 * fab.y;\n}\nvoid computeMultiscattering( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\tvec3 FssEss = specularColor * fab.x + specularF90 * fab.y;\n\tfloat Ess = fab.x + fab.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.roughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3( 0, 1, 0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNLcc = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = dotNLcc * directLight.color;\n\t\tclearcoatSpecular += ccIrradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.clearcoatNormal, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += irradiance * BRDF_Sheen( directLight.direction, geometry.viewDir, geometry.normal, material.sheenColor, material.sheenRoughness );\n\t#endif\n\treflectedLight.directSpecular += irradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularF90, material.roughness );\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatSpecular += clearcoatRadiance * EnvironmentBRDF( geometry.clearcoatNormal, geometry.viewDir, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tcomputeMultiscattering( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.roughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}"; + +var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef USE_CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointLightInfo( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotLightInfo( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalLightInfo( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry.normal );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry.normal );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif"; + +var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getIBLIrradiance( geometry.normal );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getIBLRadiance( geometry.viewDir, geometry.normal, material.roughness );\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatRadiance += getIBLRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness );\n\t#endif\n#endif"; + +var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif"; + +var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif"; + +var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif"; + +var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif"; + +var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif"; + +var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif"; + +var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif"; + +var map_particle_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif"; + +var map_particle_pars_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif"; + +var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif"; + +var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif"; + +var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\tif ( morphTargetInfluences[ i ] > 0.0 ) objectNormal += getMorph( gl_VertexID, i, 1, 2 ) * morphTargetInfluences[ i ];\n\t\t}\n\t#else\n\t\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\t\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\t\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\t\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n\t#endif\n#endif"; + +var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tuniform float morphTargetInfluences[ MORPHTARGETS_COUNT ];\n\t\tuniform sampler2DArray morphTargetsTexture;\n\t\tuniform vec2 morphTargetsTextureSize;\n\t\tvec3 getMorph( const in int vertexIndex, const in int morphTargetIndex, const in int offset, const in int stride ) {\n\t\t\tfloat texelIndex = float( vertexIndex * stride + offset );\n\t\t\tfloat y = floor( texelIndex / morphTargetsTextureSize.x );\n\t\t\tfloat x = texelIndex - y * morphTargetsTextureSize.x;\n\t\t\tvec3 morphUV = vec3( ( x + 0.5 ) / morphTargetsTextureSize.x, y / morphTargetsTextureSize.y, morphTargetIndex );\n\t\t\treturn texture( morphTargetsTexture, morphUV ).xyz;\n\t\t}\n\t#else\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\tuniform float morphTargetInfluences[ 8 ];\n\t\t#else\n\t\t\tuniform float morphTargetInfluences[ 4 ];\n\t\t#endif\n\t#endif\n#endif"; + +var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\t#ifndef USE_MORPHNORMALS\n\t\t\t\tif ( morphTargetInfluences[ i ] > 0.0 ) transformed += getMorph( gl_VertexID, i, 0, 1 ) * morphTargetInfluences[ i ];\n\t\t\t#else\n\t\t\t\tif ( morphTargetInfluences[ i ] > 0.0 ) transformed += getMorph( gl_VertexID, i, 0, 2 ) * morphTargetInfluences[ i ];\n\t\t\t#endif\n\t\t}\n\t#else\n\t\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\t\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\t\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\t\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t\t#endif\n\t#endif\n#endif"; + +var normal_fragment_begin = "float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;"; + +var normal_fragment_maps = "#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( - vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( - vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif"; + +var normal_pars_fragment = "#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif"; + +var normal_pars_vertex = "#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif"; + +var normal_vertex = "#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif"; + +var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif"; + +var clearcoat_normal_fragment_begin = "#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif"; + +var clearcoat_normal_fragment_maps = "#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif"; + +var clearcoat_pars_fragment = "#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif"; + +var output_fragment = "#ifdef OPAQUE\ndiffuseColor.a = 1.0;\n#endif\n#ifdef USE_TRANSMISSION\ndiffuseColor.a *= transmissionAlpha + 0.1;\n#endif\ngl_FragColor = vec4( outgoingLight, diffuseColor.a );"; + +var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ) );\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w );\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( ( near + viewZ ) * far ) / ( ( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}"; + +var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif"; + +var project_vertex = "vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;"; + +var dithering_fragment = "#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif"; + +var dithering_pars_fragment = "#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif"; + +var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif"; + +var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif"; + +var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif"; + +var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif"; + +var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif"; + +var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}"; + +var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif"; + +var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif"; + +var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif"; + +var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif"; + +var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif"; + +var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif"; + +var tonemapping_fragment = "#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif"; + +var tonemapping_pars_fragment = "#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3( 1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108, 1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605, 1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }"; + +var transmission_fragment = "#ifdef USE_TRANSMISSION\n\tfloat transmissionAlpha = 1.0;\n\tfloat transmissionFactor = transmission;\n\tfloat thicknessFactor = thickness;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\ttransmissionFactor *= texture2D( transmissionMap, vUv ).r;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tthicknessFactor *= texture2D( thicknessMap, vUv ).g;\n\t#endif\n\tvec3 pos = vWorldPosition;\n\tvec3 v = normalize( cameraPosition - pos );\n\tvec3 n = inverseTransformDirection( normal, viewMatrix );\n\tvec4 transmission = getIBLVolumeRefraction(\n\t\tn, v, roughnessFactor, material.diffuseColor, material.specularColor, material.specularF90,\n\t\tpos, modelMatrix, viewMatrix, projectionMatrix, ior, thicknessFactor,\n\t\tattenuationColor, attenuationDistance );\n\ttotalDiffuse = mix( totalDiffuse, transmission.rgb, transmissionFactor );\n\ttransmissionAlpha = mix( transmissionAlpha, transmission.a, transmissionFactor );\n#endif"; + +var transmission_pars_fragment = "#ifdef USE_TRANSMISSION\n\tuniform float transmission;\n\tuniform float thickness;\n\tuniform float attenuationDistance;\n\tuniform vec3 attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tuniform sampler2D transmissionMap;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tuniform sampler2D thicknessMap;\n\t#endif\n\tuniform vec2 transmissionSamplerSize;\n\tuniform sampler2D transmissionSamplerMap;\n\tuniform mat4 modelMatrix;\n\tuniform mat4 projectionMatrix;\n\tvarying vec3 vWorldPosition;\n\tvec3 getVolumeTransmissionRay( vec3 n, vec3 v, float thickness, float ior, mat4 modelMatrix ) {\n\t\tvec3 refractionVector = refract( - v, normalize( n ), 1.0 / ior );\n\t\tvec3 modelScale;\n\t\tmodelScale.x = length( vec3( modelMatrix[ 0 ].xyz ) );\n\t\tmodelScale.y = length( vec3( modelMatrix[ 1 ].xyz ) );\n\t\tmodelScale.z = length( vec3( modelMatrix[ 2 ].xyz ) );\n\t\treturn normalize( refractionVector ) * thickness * modelScale;\n\t}\n\tfloat applyIorToRoughness( float roughness, float ior ) {\n\t\treturn roughness * clamp( ior * 2.0 - 2.0, 0.0, 1.0 );\n\t}\n\tvec4 getTransmissionSample( vec2 fragCoord, float roughness, float ior ) {\n\t\tfloat framebufferLod = log2( transmissionSamplerSize.x ) * applyIorToRoughness( roughness, ior );\n\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\treturn texture2DLodEXT( transmissionSamplerMap, fragCoord.xy, framebufferLod );\n\t\t#else\n\t\t\treturn texture2D( transmissionSamplerMap, fragCoord.xy, framebufferLod );\n\t\t#endif\n\t}\n\tvec3 applyVolumeAttenuation( vec3 radiance, float transmissionDistance, vec3 attenuationColor, float attenuationDistance ) {\n\t\tif ( attenuationDistance == 0.0 ) {\n\t\t\treturn radiance;\n\t\t} else {\n\t\t\tvec3 attenuationCoefficient = -log( attenuationColor ) / attenuationDistance;\n\t\t\tvec3 transmittance = exp( - attenuationCoefficient * transmissionDistance );\t\t\treturn transmittance * radiance;\n\t\t}\n\t}\n\tvec4 getIBLVolumeRefraction( vec3 n, vec3 v, float roughness, vec3 diffuseColor, vec3 specularColor, float specularF90,\n\t\tvec3 position, mat4 modelMatrix, mat4 viewMatrix, mat4 projMatrix, float ior, float thickness,\n\t\tvec3 attenuationColor, float attenuationDistance ) {\n\t\tvec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, ior, modelMatrix );\n\t\tvec3 refractedRayExit = position + transmissionRay;\n\t\tvec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n\t\tvec2 refractionCoords = ndcPos.xy / ndcPos.w;\n\t\trefractionCoords += 1.0;\n\t\trefractionCoords /= 2.0;\n\t\tvec4 transmittedLight = getTransmissionSample( refractionCoords, roughness, ior );\n\t\tvec3 attenuatedColor = applyVolumeAttenuation( transmittedLight.rgb, length( transmissionRay ), attenuationColor, attenuationDistance );\n\t\tvec3 F = EnvironmentBRDF( n, v, specularColor, specularF90, roughness );\n\t\treturn vec4( ( 1.0 - F ) * attenuatedColor * diffuseColor, transmittedLight.a );\n\t}\n#endif"; + +var uv_pars_fragment = "#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif"; + +var uv_pars_vertex = "#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif"; + +var uv_vertex = "#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif"; + +var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif"; + +var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif"; + +var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif"; + +var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP ) || defined ( USE_TRANSMISSION )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif"; + +const vertex$g = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}"; + +const fragment$g = "uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include \n\t#include \n}"; + +const vertex$f = "varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n\tgl_Position.z = gl_Position.w;\n}"; + +const fragment$f = "#include \nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include \n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include \n\t#include \n}"; + +const vertex$e = "#include \n#include \n#include \n#include \n#include \n#include \n#include \nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include \n\t#include \n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvHighPrecisionZW = gl_Position.zw;\n}"; + +const fragment$e = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}"; + +const vertex$d = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvWorldPosition = worldPosition.xyz;\n}"; + +const fragment$d = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main () {\n\t#include \n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include \n\t#include \n\t#include \n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}"; + +const vertex$c = "varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n}"; + +const fragment$c = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include \n\t#include \n}"; + +const vertex$b = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const fragment$b = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const vertex$a = "#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#if defined ( USE_ENVMAP ) || defined ( USE_SKINNING )\n\t\t#include \n\t\t#include \n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const fragment$a = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include \n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const vertex$9 = "#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const fragment$9 = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include \n\treflectedLight.indirectDiffuse *= BRDF_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const vertex$8 = "#define MATCAP\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n}"; + +const fragment$8 = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const vertex$7 = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}"; + +const fragment$7 = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}"; + +const vertex$6 = "#define PHONG\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const fragment$6 = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const vertex$5 = "#define STANDARD\nvarying vec3 vViewPosition;\n#ifdef USE_TRANSMISSION\n\tvarying vec3 vWorldPosition;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n#ifdef USE_TRANSMISSION\n\tvWorldPosition = worldPosition.xyz;\n#endif\n}"; + +const fragment$5 = "#define STANDARD\n#ifdef PHYSICAL\n\t#define IOR\n\t#define SPECULAR\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef IOR\n\tuniform float ior;\n#endif\n#ifdef SPECULAR\n\tuniform float specularIntensity;\n\tuniform vec3 specularColor;\n\t#ifdef USE_SPECULARINTENSITYMAP\n\t\tuniform sampler2D specularIntensityMap;\n\t#endif\n\t#ifdef USE_SPECULARCOLORMAP\n\t\tuniform sampler2D specularColorMap;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheenColor;\n\tuniform float sheenRoughness;\n\t#ifdef USE_SHEENCOLORMAP\n\t\tuniform sampler2D sheenColorMap;\n\t#endif\n\t#ifdef USE_SHEENROUGHNESSMAP\n\t\tuniform sampler2D sheenRoughnessMap;\n\t#endif\n#endif\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 totalDiffuse = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse;\n\tvec3 totalSpecular = reflectedLight.directSpecular + reflectedLight.indirectSpecular;\n\t#include \n\tvec3 outgoingLight = totalDiffuse + totalSpecular + totalEmissiveRadiance;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNVcc = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\tvec3 Fcc = F_Schlick( material.clearcoatF0, material.clearcoatF90, dotNVcc );\n\t\toutgoingLight = outgoingLight * ( 1.0 - clearcoat * Fcc ) + clearcoatSpecular * clearcoat;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const vertex$4 = "#define TOON\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n}"; + +const fragment$4 = "#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const vertex$3 = "uniform float size;\nuniform float scale;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const fragment$3 = "uniform vec3 diffuse;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const vertex$2 = "#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const fragment$2 = "uniform vec3 color;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include \n\t#include \n\t#include \n}"; + +const vertex$1 = "uniform float rotation;\nuniform vec2 center;\n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include \n\t#include \n\t#include \n}"; + +const fragment$1 = "uniform vec3 diffuse;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +const ShaderChunk = { + alphamap_fragment: alphamap_fragment, + alphamap_pars_fragment: alphamap_pars_fragment, + alphatest_fragment: alphatest_fragment, + alphatest_pars_fragment: alphatest_pars_fragment, + aomap_fragment: aomap_fragment, + aomap_pars_fragment: aomap_pars_fragment, + begin_vertex: begin_vertex, + beginnormal_vertex: beginnormal_vertex, + bsdfs: bsdfs, + bumpmap_pars_fragment: bumpmap_pars_fragment, + clipping_planes_fragment: clipping_planes_fragment, + clipping_planes_pars_fragment: clipping_planes_pars_fragment, + clipping_planes_pars_vertex: clipping_planes_pars_vertex, + clipping_planes_vertex: clipping_planes_vertex, + color_fragment: color_fragment, + color_pars_fragment: color_pars_fragment, + color_pars_vertex: color_pars_vertex, + color_vertex: color_vertex, + common: common, + cube_uv_reflection_fragment: cube_uv_reflection_fragment, + defaultnormal_vertex: defaultnormal_vertex, + displacementmap_pars_vertex: displacementmap_pars_vertex, + displacementmap_vertex: displacementmap_vertex, + emissivemap_fragment: emissivemap_fragment, + emissivemap_pars_fragment: emissivemap_pars_fragment, + encodings_fragment: encodings_fragment, + encodings_pars_fragment: encodings_pars_fragment, + envmap_fragment: envmap_fragment, + envmap_common_pars_fragment: envmap_common_pars_fragment, + envmap_pars_fragment: envmap_pars_fragment, + envmap_pars_vertex: envmap_pars_vertex, + envmap_physical_pars_fragment: envmap_physical_pars_fragment, + envmap_vertex: envmap_vertex, + fog_vertex: fog_vertex, + fog_pars_vertex: fog_pars_vertex, + fog_fragment: fog_fragment, + fog_pars_fragment: fog_pars_fragment, + gradientmap_pars_fragment: gradientmap_pars_fragment, + lightmap_fragment: lightmap_fragment, + lightmap_pars_fragment: lightmap_pars_fragment, + lights_lambert_vertex: lights_lambert_vertex, + lights_pars_begin: lights_pars_begin, + lights_toon_fragment: lights_toon_fragment, + lights_toon_pars_fragment: lights_toon_pars_fragment, + lights_phong_fragment: lights_phong_fragment, + lights_phong_pars_fragment: lights_phong_pars_fragment, + lights_physical_fragment: lights_physical_fragment, + lights_physical_pars_fragment: lights_physical_pars_fragment, + lights_fragment_begin: lights_fragment_begin, + lights_fragment_maps: lights_fragment_maps, + lights_fragment_end: lights_fragment_end, + logdepthbuf_fragment: logdepthbuf_fragment, + logdepthbuf_pars_fragment: logdepthbuf_pars_fragment, + logdepthbuf_pars_vertex: logdepthbuf_pars_vertex, + logdepthbuf_vertex: logdepthbuf_vertex, + map_fragment: map_fragment, + map_pars_fragment: map_pars_fragment, + map_particle_fragment: map_particle_fragment, + map_particle_pars_fragment: map_particle_pars_fragment, + metalnessmap_fragment: metalnessmap_fragment, + metalnessmap_pars_fragment: metalnessmap_pars_fragment, + morphnormal_vertex: morphnormal_vertex, + morphtarget_pars_vertex: morphtarget_pars_vertex, + morphtarget_vertex: morphtarget_vertex, + normal_fragment_begin: normal_fragment_begin, + normal_fragment_maps: normal_fragment_maps, + normal_pars_fragment: normal_pars_fragment, + normal_pars_vertex: normal_pars_vertex, + normal_vertex: normal_vertex, + normalmap_pars_fragment: normalmap_pars_fragment, + clearcoat_normal_fragment_begin: clearcoat_normal_fragment_begin, + clearcoat_normal_fragment_maps: clearcoat_normal_fragment_maps, + clearcoat_pars_fragment: clearcoat_pars_fragment, + output_fragment: output_fragment, + packing: packing, + premultiplied_alpha_fragment: premultiplied_alpha_fragment, + project_vertex: project_vertex, + dithering_fragment: dithering_fragment, + dithering_pars_fragment: dithering_pars_fragment, + roughnessmap_fragment: roughnessmap_fragment, + roughnessmap_pars_fragment: roughnessmap_pars_fragment, + shadowmap_pars_fragment: shadowmap_pars_fragment, + shadowmap_pars_vertex: shadowmap_pars_vertex, + shadowmap_vertex: shadowmap_vertex, + shadowmask_pars_fragment: shadowmask_pars_fragment, + skinbase_vertex: skinbase_vertex, + skinning_pars_vertex: skinning_pars_vertex, + skinning_vertex: skinning_vertex, + skinnormal_vertex: skinnormal_vertex, + specularmap_fragment: specularmap_fragment, + specularmap_pars_fragment: specularmap_pars_fragment, + tonemapping_fragment: tonemapping_fragment, + tonemapping_pars_fragment: tonemapping_pars_fragment, + transmission_fragment: transmission_fragment, + transmission_pars_fragment: transmission_pars_fragment, + uv_pars_fragment: uv_pars_fragment, + uv_pars_vertex: uv_pars_vertex, + uv_vertex: uv_vertex, + uv2_pars_fragment: uv2_pars_fragment, + uv2_pars_vertex: uv2_pars_vertex, + uv2_vertex: uv2_vertex, + worldpos_vertex: worldpos_vertex, + + background_vert: vertex$g, + background_frag: fragment$g, + cube_vert: vertex$f, + cube_frag: fragment$f, + depth_vert: vertex$e, + depth_frag: fragment$e, + distanceRGBA_vert: vertex$d, + distanceRGBA_frag: fragment$d, + equirect_vert: vertex$c, + equirect_frag: fragment$c, + linedashed_vert: vertex$b, + linedashed_frag: fragment$b, + meshbasic_vert: vertex$a, + meshbasic_frag: fragment$a, + meshlambert_vert: vertex$9, + meshlambert_frag: fragment$9, + meshmatcap_vert: vertex$8, + meshmatcap_frag: fragment$8, + meshnormal_vert: vertex$7, + meshnormal_frag: fragment$7, + meshphong_vert: vertex$6, + meshphong_frag: fragment$6, + meshphysical_vert: vertex$5, + meshphysical_frag: fragment$5, + meshtoon_vert: vertex$4, + meshtoon_frag: fragment$4, + points_vert: vertex$3, + points_frag: fragment$3, + shadow_vert: vertex$2, + shadow_frag: fragment$2, + sprite_vert: vertex$1, + sprite_frag: fragment$1 +}; + +/** + * Uniforms library for shared webgl shaders + */ + +const UniformsLib = { + + common: { + + diffuse: { value: new Color( 0xffffff ) }, + opacity: { value: 1.0 }, + + map: { value: null }, + uvTransform: { value: new Matrix3() }, + uv2Transform: { value: new Matrix3() }, + + alphaMap: { value: null }, + alphaTest: { value: 0 } + + }, + + specularmap: { + + specularMap: { value: null }, + + }, + + envmap: { + + envMap: { value: null }, + flipEnvMap: { value: - 1 }, + reflectivity: { value: 1.0 }, // basic, lambert, phong + ior: { value: 1.5 }, // standard, physical + refractionRatio: { value: 0.98 }, + maxMipLevel: { value: 0 } + + }, + + aomap: { + + aoMap: { value: null }, + aoMapIntensity: { value: 1 } + + }, + + lightmap: { + + lightMap: { value: null }, + lightMapIntensity: { value: 1 } + + }, + + emissivemap: { + + emissiveMap: { value: null } + + }, + + bumpmap: { + + bumpMap: { value: null }, + bumpScale: { value: 1 } + + }, + + normalmap: { + + normalMap: { value: null }, + normalScale: { value: new Vector2( 1, 1 ) } + + }, + + displacementmap: { + + displacementMap: { value: null }, + displacementScale: { value: 1 }, + displacementBias: { value: 0 } + + }, + + roughnessmap: { + + roughnessMap: { value: null } + + }, + + metalnessmap: { + + metalnessMap: { value: null } + + }, + + gradientmap: { + + gradientMap: { value: null } + + }, + + fog: { + + fogDensity: { value: 0.00025 }, + fogNear: { value: 1 }, + fogFar: { value: 2000 }, + fogColor: { value: new Color( 0xffffff ) } + + }, + + lights: { + + ambientLightColor: { value: [] }, + + lightProbe: { value: [] }, + + directionalLights: { value: [], properties: { + direction: {}, + color: {} + } }, + + directionalLightShadows: { value: [], properties: { + shadowBias: {}, + shadowNormalBias: {}, + shadowRadius: {}, + shadowMapSize: {} + } }, + + directionalShadowMap: { value: [] }, + directionalShadowMatrix: { value: [] }, + + spotLights: { value: [], properties: { + color: {}, + position: {}, + direction: {}, + distance: {}, + coneCos: {}, + penumbraCos: {}, + decay: {} + } }, + + spotLightShadows: { value: [], properties: { + shadowBias: {}, + shadowNormalBias: {}, + shadowRadius: {}, + shadowMapSize: {} + } }, + + spotShadowMap: { value: [] }, + spotShadowMatrix: { value: [] }, + + pointLights: { value: [], properties: { + color: {}, + position: {}, + decay: {}, + distance: {} + } }, + + pointLightShadows: { value: [], properties: { + shadowBias: {}, + shadowNormalBias: {}, + shadowRadius: {}, + shadowMapSize: {}, + shadowCameraNear: {}, + shadowCameraFar: {} + } }, + + pointShadowMap: { value: [] }, + pointShadowMatrix: { value: [] }, + + hemisphereLights: { value: [], properties: { + direction: {}, + skyColor: {}, + groundColor: {} + } }, + + // TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src + rectAreaLights: { value: [], properties: { + color: {}, + position: {}, + width: {}, + height: {} + } }, + + ltc_1: { value: null }, + ltc_2: { value: null } + + }, + + points: { + + diffuse: { value: new Color( 0xffffff ) }, + opacity: { value: 1.0 }, + size: { value: 1.0 }, + scale: { value: 1.0 }, + map: { value: null }, + alphaMap: { value: null }, + alphaTest: { value: 0 }, + uvTransform: { value: new Matrix3() } + + }, + + sprite: { + + diffuse: { value: new Color( 0xffffff ) }, + opacity: { value: 1.0 }, + center: { value: new Vector2( 0.5, 0.5 ) }, + rotation: { value: 0.0 }, + map: { value: null }, + alphaMap: { value: null }, + alphaTest: { value: 0 }, + uvTransform: { value: new Matrix3() } + + } + +}; + +const ShaderLib = { + + basic: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.specularmap, + UniformsLib.envmap, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.fog + ] ), + + vertexShader: ShaderChunk.meshbasic_vert, + fragmentShader: ShaderChunk.meshbasic_frag + + }, + + lambert: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.specularmap, + UniformsLib.envmap, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.fog, + UniformsLib.lights, + { + emissive: { value: new Color( 0x000000 ) } + } + ] ), + + vertexShader: ShaderChunk.meshlambert_vert, + fragmentShader: ShaderChunk.meshlambert_frag + + }, + + phong: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.specularmap, + UniformsLib.envmap, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.fog, + UniformsLib.lights, + { + emissive: { value: new Color( 0x000000 ) }, + specular: { value: new Color( 0x111111 ) }, + shininess: { value: 30 } + } + ] ), + + vertexShader: ShaderChunk.meshphong_vert, + fragmentShader: ShaderChunk.meshphong_frag + + }, + + standard: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.envmap, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.roughnessmap, + UniformsLib.metalnessmap, + UniformsLib.fog, + UniformsLib.lights, + { + emissive: { value: new Color( 0x000000 ) }, + roughness: { value: 1.0 }, + metalness: { value: 0.0 }, + envMapIntensity: { value: 1 } // temporary + } + ] ), + + vertexShader: ShaderChunk.meshphysical_vert, + fragmentShader: ShaderChunk.meshphysical_frag + + }, + + toon: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.gradientmap, + UniformsLib.fog, + UniformsLib.lights, + { + emissive: { value: new Color( 0x000000 ) } + } + ] ), + + vertexShader: ShaderChunk.meshtoon_vert, + fragmentShader: ShaderChunk.meshtoon_frag + + }, + + matcap: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.fog, + { + matcap: { value: null } + } + ] ), + + vertexShader: ShaderChunk.meshmatcap_vert, + fragmentShader: ShaderChunk.meshmatcap_frag + + }, + + points: { + + uniforms: mergeUniforms( [ + UniformsLib.points, + UniformsLib.fog + ] ), + + vertexShader: ShaderChunk.points_vert, + fragmentShader: ShaderChunk.points_frag + + }, + + dashed: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.fog, + { + scale: { value: 1 }, + dashSize: { value: 1 }, + totalSize: { value: 2 } + } + ] ), + + vertexShader: ShaderChunk.linedashed_vert, + fragmentShader: ShaderChunk.linedashed_frag + + }, + + depth: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.displacementmap + ] ), + + vertexShader: ShaderChunk.depth_vert, + fragmentShader: ShaderChunk.depth_frag + + }, + + normal: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + { + opacity: { value: 1.0 } + } + ] ), + + vertexShader: ShaderChunk.meshnormal_vert, + fragmentShader: ShaderChunk.meshnormal_frag + + }, + + sprite: { + + uniforms: mergeUniforms( [ + UniformsLib.sprite, + UniformsLib.fog + ] ), + + vertexShader: ShaderChunk.sprite_vert, + fragmentShader: ShaderChunk.sprite_frag + + }, + + background: { + + uniforms: { + uvTransform: { value: new Matrix3() }, + t2D: { value: null }, + }, + + vertexShader: ShaderChunk.background_vert, + fragmentShader: ShaderChunk.background_frag + + }, + /* ------------------------------------------------------------------------- + // Cube map shader + ------------------------------------------------------------------------- */ + + cube: { + + uniforms: mergeUniforms( [ + UniformsLib.envmap, + { + opacity: { value: 1.0 } + } + ] ), + + vertexShader: ShaderChunk.cube_vert, + fragmentShader: ShaderChunk.cube_frag + + }, + + equirect: { + + uniforms: { + tEquirect: { value: null }, + }, + + vertexShader: ShaderChunk.equirect_vert, + fragmentShader: ShaderChunk.equirect_frag + + }, + + distanceRGBA: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.displacementmap, + { + referencePosition: { value: new Vector3() }, + nearDistance: { value: 1 }, + farDistance: { value: 1000 } + } + ] ), + + vertexShader: ShaderChunk.distanceRGBA_vert, + fragmentShader: ShaderChunk.distanceRGBA_frag + + }, + + shadow: { + + uniforms: mergeUniforms( [ + UniformsLib.lights, + UniformsLib.fog, + { + color: { value: new Color( 0x00000 ) }, + opacity: { value: 1.0 } + }, + ] ), + + vertexShader: ShaderChunk.shadow_vert, + fragmentShader: ShaderChunk.shadow_frag + + } + +}; + +ShaderLib.physical = { + + uniforms: mergeUniforms( [ + ShaderLib.standard.uniforms, + { + clearcoat: { value: 0 }, + clearcoatMap: { value: null }, + clearcoatRoughness: { value: 0 }, + clearcoatRoughnessMap: { value: null }, + clearcoatNormalScale: { value: new Vector2( 1, 1 ) }, + clearcoatNormalMap: { value: null }, + sheen: { value: 0 }, + sheenColor: { value: new Color( 0x000000 ) }, + sheenColorMap: { value: null }, + sheenRoughness: { value: 0 }, + sheenRoughnessMap: { value: null }, + transmission: { value: 0 }, + transmissionMap: { value: null }, + transmissionSamplerSize: { value: new Vector2() }, + transmissionSamplerMap: { value: null }, + thickness: { value: 0 }, + thicknessMap: { value: null }, + attenuationDistance: { value: 0 }, + attenuationColor: { value: new Color( 0x000000 ) }, + specularIntensity: { value: 0 }, + specularIntensityMap: { value: null }, + specularColor: { value: new Color( 1, 1, 1 ) }, + specularColorMap: { value: null }, + } + ] ), + + vertexShader: ShaderChunk.meshphysical_vert, + fragmentShader: ShaderChunk.meshphysical_frag + +}; + +function WebGLBackground( renderer, cubemaps, state, objects, premultipliedAlpha ) { + + const clearColor = new Color( 0x000000 ); + let clearAlpha = 0; + + let planeMesh; + let boxMesh; + + let currentBackground = null; + let currentBackgroundVersion = 0; + let currentTonemapping = null; + + function render( renderList, scene ) { + + let forceClear = false; + let background = scene.isScene === true ? scene.background : null; + + if ( background && background.isTexture ) { + + background = cubemaps.get( background ); + + } + + // Ignore background in AR + // TODO: Reconsider this. + + const xr = renderer.xr; + const session = xr.getSession && xr.getSession(); + + if ( session && session.environmentBlendMode === 'additive' ) { + + background = null; + + } + + if ( background === null ) { + + setClear( clearColor, clearAlpha ); + + } else if ( background && background.isColor ) { + + setClear( background, 1 ); + forceClear = true; + + } + + if ( renderer.autoClear || forceClear ) { + + renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil ); + + } + + if ( background && ( background.isCubeTexture || background.mapping === CubeUVReflectionMapping ) ) { + + if ( boxMesh === undefined ) { + + boxMesh = new Mesh( + new BoxGeometry( 1, 1, 1 ), + new ShaderMaterial( { + name: 'BackgroundCubeMaterial', + uniforms: cloneUniforms( ShaderLib.cube.uniforms ), + vertexShader: ShaderLib.cube.vertexShader, + fragmentShader: ShaderLib.cube.fragmentShader, + side: BackSide, + depthTest: false, + depthWrite: false, + fog: false + } ) + ); + + boxMesh.geometry.deleteAttribute( 'normal' ); + boxMesh.geometry.deleteAttribute( 'uv' ); + + boxMesh.onBeforeRender = function ( renderer, scene, camera ) { + + this.matrixWorld.copyPosition( camera.matrixWorld ); + + }; + + // enable code injection for non-built-in material + Object.defineProperty( boxMesh.material, 'envMap', { + + get: function () { + + return this.uniforms.envMap.value; + + } + + } ); + + objects.update( boxMesh ); + + } + + boxMesh.material.uniforms.envMap.value = background; + boxMesh.material.uniforms.flipEnvMap.value = ( background.isCubeTexture && background.isRenderTargetTexture === false ) ? - 1 : 1; + + if ( currentBackground !== background || + currentBackgroundVersion !== background.version || + currentTonemapping !== renderer.toneMapping ) { + + boxMesh.material.needsUpdate = true; + + currentBackground = background; + currentBackgroundVersion = background.version; + currentTonemapping = renderer.toneMapping; + + } + + // push to the pre-sorted opaque render list + renderList.unshift( boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null ); + + } else if ( background && background.isTexture ) { + + if ( planeMesh === undefined ) { + + planeMesh = new Mesh( + new PlaneGeometry( 2, 2 ), + new ShaderMaterial( { + name: 'BackgroundMaterial', + uniforms: cloneUniforms( ShaderLib.background.uniforms ), + vertexShader: ShaderLib.background.vertexShader, + fragmentShader: ShaderLib.background.fragmentShader, + side: FrontSide, + depthTest: false, + depthWrite: false, + fog: false + } ) + ); + + planeMesh.geometry.deleteAttribute( 'normal' ); + + // enable code injection for non-built-in material + Object.defineProperty( planeMesh.material, 'map', { + + get: function () { + + return this.uniforms.t2D.value; + + } + + } ); + + objects.update( planeMesh ); + + } + + planeMesh.material.uniforms.t2D.value = background; + + if ( background.matrixAutoUpdate === true ) { + + background.updateMatrix(); + + } + + planeMesh.material.uniforms.uvTransform.value.copy( background.matrix ); + + if ( currentBackground !== background || + currentBackgroundVersion !== background.version || + currentTonemapping !== renderer.toneMapping ) { + + planeMesh.material.needsUpdate = true; + + currentBackground = background; + currentBackgroundVersion = background.version; + currentTonemapping = renderer.toneMapping; + + } + + + // push to the pre-sorted opaque render list + renderList.unshift( planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null ); + + } + + } + + function setClear( color, alpha ) { + + state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha ); + + } + + return { + + getClearColor: function () { + + return clearColor; + + }, + setClearColor: function ( color, alpha = 1 ) { + + clearColor.set( color ); + clearAlpha = alpha; + setClear( clearColor, clearAlpha ); + + }, + getClearAlpha: function () { + + return clearAlpha; + + }, + setClearAlpha: function ( alpha ) { + + clearAlpha = alpha; + setClear( clearColor, clearAlpha ); + + }, + render: render + + }; + +} + +function WebGLBindingStates( gl, extensions, attributes, capabilities ) { + + const maxVertexAttributes = gl.getParameter( 34921 ); + + const extension = capabilities.isWebGL2 ? null : extensions.get( 'OES_vertex_array_object' ); + const vaoAvailable = capabilities.isWebGL2 || extension !== null; + + const bindingStates = {}; + + const defaultState = createBindingState( null ); + let currentState = defaultState; + + function setup( object, material, program, geometry, index ) { + + let updateBuffers = false; + + if ( vaoAvailable ) { + + const state = getBindingState( geometry, program, material ); + + if ( currentState !== state ) { + + currentState = state; + bindVertexArrayObject( currentState.object ); + + } + + updateBuffers = needsUpdate( geometry, index ); + + if ( updateBuffers ) saveCache( geometry, index ); + + } else { + + const wireframe = ( material.wireframe === true ); + + if ( currentState.geometry !== geometry.id || + currentState.program !== program.id || + currentState.wireframe !== wireframe ) { + + currentState.geometry = geometry.id; + currentState.program = program.id; + currentState.wireframe = wireframe; + + updateBuffers = true; + + } + + } + + if ( object.isInstancedMesh === true ) { + + updateBuffers = true; + + } + + if ( index !== null ) { + + attributes.update( index, 34963 ); + + } + + if ( updateBuffers ) { + + setupVertexAttributes( object, material, program, geometry ); + + if ( index !== null ) { + + gl.bindBuffer( 34963, attributes.get( index ).buffer ); + + } + + } + + } + + function createVertexArrayObject() { + + if ( capabilities.isWebGL2 ) return gl.createVertexArray(); + + return extension.createVertexArrayOES(); + + } + + function bindVertexArrayObject( vao ) { + + if ( capabilities.isWebGL2 ) return gl.bindVertexArray( vao ); + + return extension.bindVertexArrayOES( vao ); + + } + + function deleteVertexArrayObject( vao ) { + + if ( capabilities.isWebGL2 ) return gl.deleteVertexArray( vao ); + + return extension.deleteVertexArrayOES( vao ); + + } + + function getBindingState( geometry, program, material ) { + + const wireframe = ( material.wireframe === true ); + + let programMap = bindingStates[ geometry.id ]; + + if ( programMap === undefined ) { + + programMap = {}; + bindingStates[ geometry.id ] = programMap; + + } + + let stateMap = programMap[ program.id ]; + + if ( stateMap === undefined ) { + + stateMap = {}; + programMap[ program.id ] = stateMap; + + } + + let state = stateMap[ wireframe ]; + + if ( state === undefined ) { + + state = createBindingState( createVertexArrayObject() ); + stateMap[ wireframe ] = state; + + } + + return state; + + } + + function createBindingState( vao ) { + + const newAttributes = []; + const enabledAttributes = []; + const attributeDivisors = []; + + for ( let i = 0; i < maxVertexAttributes; i ++ ) { + + newAttributes[ i ] = 0; + enabledAttributes[ i ] = 0; + attributeDivisors[ i ] = 0; + + } + + return { + + // for backward compatibility on non-VAO support browser + geometry: null, + program: null, + wireframe: false, + + newAttributes: newAttributes, + enabledAttributes: enabledAttributes, + attributeDivisors: attributeDivisors, + object: vao, + attributes: {}, + index: null + + }; + + } + + function needsUpdate( geometry, index ) { + + const cachedAttributes = currentState.attributes; + const geometryAttributes = geometry.attributes; + + let attributesNum = 0; + + for ( const key in geometryAttributes ) { + + const cachedAttribute = cachedAttributes[ key ]; + const geometryAttribute = geometryAttributes[ key ]; + + if ( cachedAttribute === undefined ) return true; + + if ( cachedAttribute.attribute !== geometryAttribute ) return true; + + if ( cachedAttribute.data !== geometryAttribute.data ) return true; + + attributesNum ++; + + } + + if ( currentState.attributesNum !== attributesNum ) return true; + + if ( currentState.index !== index ) return true; + + return false; + + } + + function saveCache( geometry, index ) { + + const cache = {}; + const attributes = geometry.attributes; + let attributesNum = 0; + + for ( const key in attributes ) { + + const attribute = attributes[ key ]; + + const data = {}; + data.attribute = attribute; + + if ( attribute.data ) { + + data.data = attribute.data; + + } + + cache[ key ] = data; + + attributesNum ++; + + } + + currentState.attributes = cache; + currentState.attributesNum = attributesNum; + + currentState.index = index; + + } + + function initAttributes() { + + const newAttributes = currentState.newAttributes; + + for ( let i = 0, il = newAttributes.length; i < il; i ++ ) { + + newAttributes[ i ] = 0; + + } + + } + + function enableAttribute( attribute ) { + + enableAttributeAndDivisor( attribute, 0 ); + + } + + function enableAttributeAndDivisor( attribute, meshPerAttribute ) { + + const newAttributes = currentState.newAttributes; + const enabledAttributes = currentState.enabledAttributes; + const attributeDivisors = currentState.attributeDivisors; + + newAttributes[ attribute ] = 1; + + if ( enabledAttributes[ attribute ] === 0 ) { + + gl.enableVertexAttribArray( attribute ); + enabledAttributes[ attribute ] = 1; + + } + + if ( attributeDivisors[ attribute ] !== meshPerAttribute ) { + + const extension = capabilities.isWebGL2 ? gl : extensions.get( 'ANGLE_instanced_arrays' ); + + extension[ capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE' ]( attribute, meshPerAttribute ); + attributeDivisors[ attribute ] = meshPerAttribute; + + } + + } + + function disableUnusedAttributes() { + + const newAttributes = currentState.newAttributes; + const enabledAttributes = currentState.enabledAttributes; + + for ( let i = 0, il = enabledAttributes.length; i < il; i ++ ) { + + if ( enabledAttributes[ i ] !== newAttributes[ i ] ) { + + gl.disableVertexAttribArray( i ); + enabledAttributes[ i ] = 0; + + } + + } + + } + + function vertexAttribPointer( index, size, type, normalized, stride, offset ) { + + if ( capabilities.isWebGL2 === true && ( type === 5124 || type === 5125 ) ) { + + gl.vertexAttribIPointer( index, size, type, stride, offset ); + + } else { + + gl.vertexAttribPointer( index, size, type, normalized, stride, offset ); + + } + + } + + function setupVertexAttributes( object, material, program, geometry ) { + + if ( capabilities.isWebGL2 === false && ( object.isInstancedMesh || geometry.isInstancedBufferGeometry ) ) { + + if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) return; + + } + + initAttributes(); + + const geometryAttributes = geometry.attributes; + + const programAttributes = program.getAttributes(); + + const materialDefaultAttributeValues = material.defaultAttributeValues; + + for ( const name in programAttributes ) { + + const programAttribute = programAttributes[ name ]; + + if ( programAttribute.location >= 0 ) { + + let geometryAttribute = geometryAttributes[ name ]; + + if ( geometryAttribute === undefined ) { + + if ( name === 'instanceMatrix' && object.instanceMatrix ) geometryAttribute = object.instanceMatrix; + if ( name === 'instanceColor' && object.instanceColor ) geometryAttribute = object.instanceColor; + + } + + if ( geometryAttribute !== undefined ) { + + const normalized = geometryAttribute.normalized; + const size = geometryAttribute.itemSize; + + const attribute = attributes.get( geometryAttribute ); + + // TODO Attribute may not be available on context restore + + if ( attribute === undefined ) continue; + + const buffer = attribute.buffer; + const type = attribute.type; + const bytesPerElement = attribute.bytesPerElement; + + if ( geometryAttribute.isInterleavedBufferAttribute ) { + + const data = geometryAttribute.data; + const stride = data.stride; + const offset = geometryAttribute.offset; + + if ( data && data.isInstancedInterleavedBuffer ) { + + for ( let i = 0; i < programAttribute.locationSize; i ++ ) { + + enableAttributeAndDivisor( programAttribute.location + i, data.meshPerAttribute ); + + } + + if ( object.isInstancedMesh !== true && geometry._maxInstanceCount === undefined ) { + + geometry._maxInstanceCount = data.meshPerAttribute * data.count; + + } + + } else { + + for ( let i = 0; i < programAttribute.locationSize; i ++ ) { + + enableAttribute( programAttribute.location + i ); + + } + + } + + gl.bindBuffer( 34962, buffer ); + + for ( let i = 0; i < programAttribute.locationSize; i ++ ) { + + vertexAttribPointer( + programAttribute.location + i, + size / programAttribute.locationSize, + type, + normalized, + stride * bytesPerElement, + ( offset + ( size / programAttribute.locationSize ) * i ) * bytesPerElement + ); + + } + + } else { + + if ( geometryAttribute.isInstancedBufferAttribute ) { + + for ( let i = 0; i < programAttribute.locationSize; i ++ ) { + + enableAttributeAndDivisor( programAttribute.location + i, geometryAttribute.meshPerAttribute ); + + } + + if ( object.isInstancedMesh !== true && geometry._maxInstanceCount === undefined ) { + + geometry._maxInstanceCount = geometryAttribute.meshPerAttribute * geometryAttribute.count; + + } + + } else { + + for ( let i = 0; i < programAttribute.locationSize; i ++ ) { + + enableAttribute( programAttribute.location + i ); + + } + + } + + gl.bindBuffer( 34962, buffer ); + + for ( let i = 0; i < programAttribute.locationSize; i ++ ) { + + vertexAttribPointer( + programAttribute.location + i, + size / programAttribute.locationSize, + type, + normalized, + size * bytesPerElement, + ( size / programAttribute.locationSize ) * i * bytesPerElement + ); + + } + + } + + } else if ( materialDefaultAttributeValues !== undefined ) { + + const value = materialDefaultAttributeValues[ name ]; + + if ( value !== undefined ) { + + switch ( value.length ) { + + case 2: + gl.vertexAttrib2fv( programAttribute.location, value ); + break; + + case 3: + gl.vertexAttrib3fv( programAttribute.location, value ); + break; + + case 4: + gl.vertexAttrib4fv( programAttribute.location, value ); + break; + + default: + gl.vertexAttrib1fv( programAttribute.location, value ); + + } + + } + + } + + } + + } + + disableUnusedAttributes(); + + } + + function dispose() { + + reset(); + + for ( const geometryId in bindingStates ) { + + const programMap = bindingStates[ geometryId ]; + + for ( const programId in programMap ) { + + const stateMap = programMap[ programId ]; + + for ( const wireframe in stateMap ) { + + deleteVertexArrayObject( stateMap[ wireframe ].object ); + + delete stateMap[ wireframe ]; + + } + + delete programMap[ programId ]; + + } + + delete bindingStates[ geometryId ]; + + } + + } + + function releaseStatesOfGeometry( geometry ) { + + if ( bindingStates[ geometry.id ] === undefined ) return; + + const programMap = bindingStates[ geometry.id ]; + + for ( const programId in programMap ) { + + const stateMap = programMap[ programId ]; + + for ( const wireframe in stateMap ) { + + deleteVertexArrayObject( stateMap[ wireframe ].object ); + + delete stateMap[ wireframe ]; + + } + + delete programMap[ programId ]; + + } + + delete bindingStates[ geometry.id ]; + + } + + function releaseStatesOfProgram( program ) { + + for ( const geometryId in bindingStates ) { + + const programMap = bindingStates[ geometryId ]; + + if ( programMap[ program.id ] === undefined ) continue; + + const stateMap = programMap[ program.id ]; + + for ( const wireframe in stateMap ) { + + deleteVertexArrayObject( stateMap[ wireframe ].object ); + + delete stateMap[ wireframe ]; + + } + + delete programMap[ program.id ]; + + } + + } + + function reset() { + + resetDefaultState(); + + if ( currentState === defaultState ) return; + + currentState = defaultState; + bindVertexArrayObject( currentState.object ); + + } + + // for backward-compatilibity + + function resetDefaultState() { + + defaultState.geometry = null; + defaultState.program = null; + defaultState.wireframe = false; + + } + + return { + + setup: setup, + reset: reset, + resetDefaultState: resetDefaultState, + dispose: dispose, + releaseStatesOfGeometry: releaseStatesOfGeometry, + releaseStatesOfProgram: releaseStatesOfProgram, + + initAttributes: initAttributes, + enableAttribute: enableAttribute, + disableUnusedAttributes: disableUnusedAttributes + + }; + +} + +function WebGLBufferRenderer( gl, extensions, info, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + let mode; + + function setMode( value ) { + + mode = value; + + } + + function render( start, count ) { + + gl.drawArrays( mode, start, count ); + + info.update( count, mode, 1 ); + + } + + function renderInstances( start, count, primcount ) { + + if ( primcount === 0 ) return; + + let extension, methodName; + + if ( isWebGL2 ) { + + extension = gl; + methodName = 'drawArraysInstanced'; + + } else { + + extension = extensions.get( 'ANGLE_instanced_arrays' ); + methodName = 'drawArraysInstancedANGLE'; + + if ( extension === null ) { + + console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' ); + return; + + } + + } + + extension[ methodName ]( mode, start, count, primcount ); + + info.update( count, mode, primcount ); + + } + + // + + this.setMode = setMode; + this.render = render; + this.renderInstances = renderInstances; + +} + +function WebGLCapabilities( gl, extensions, parameters ) { + + let maxAnisotropy; + + function getMaxAnisotropy() { + + if ( maxAnisotropy !== undefined ) return maxAnisotropy; + + if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) { + + const extension = extensions.get( 'EXT_texture_filter_anisotropic' ); + + maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT ); + + } else { + + maxAnisotropy = 0; + + } + + return maxAnisotropy; + + } + + function getMaxPrecision( precision ) { + + if ( precision === 'highp' ) { + + if ( gl.getShaderPrecisionFormat( 35633, 36338 ).precision > 0 && + gl.getShaderPrecisionFormat( 35632, 36338 ).precision > 0 ) { + + return 'highp'; + + } + + precision = 'mediump'; + + } + + if ( precision === 'mediump' ) { + + if ( gl.getShaderPrecisionFormat( 35633, 36337 ).precision > 0 && + gl.getShaderPrecisionFormat( 35632, 36337 ).precision > 0 ) { + + return 'mediump'; + + } + + } + + return 'lowp'; + + } + + /* eslint-disable no-undef */ + const isWebGL2 = ( typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext ) || + ( typeof WebGL2ComputeRenderingContext !== 'undefined' && gl instanceof WebGL2ComputeRenderingContext ); + /* eslint-enable no-undef */ + + let precision = parameters.precision !== undefined ? parameters.precision : 'highp'; + const maxPrecision = getMaxPrecision( precision ); + + if ( maxPrecision !== precision ) { + + console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' ); + precision = maxPrecision; + + } + + const drawBuffers = isWebGL2 || extensions.has( 'WEBGL_draw_buffers' ); + + const logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true; + + const maxTextures = gl.getParameter( 34930 ); + const maxVertexTextures = gl.getParameter( 35660 ); + const maxTextureSize = gl.getParameter( 3379 ); + const maxCubemapSize = gl.getParameter( 34076 ); + + const maxAttributes = gl.getParameter( 34921 ); + const maxVertexUniforms = gl.getParameter( 36347 ); + const maxVaryings = gl.getParameter( 36348 ); + const maxFragmentUniforms = gl.getParameter( 36349 ); + + const vertexTextures = maxVertexTextures > 0; + const floatFragmentTextures = isWebGL2 || extensions.has( 'OES_texture_float' ); + const floatVertexTextures = vertexTextures && floatFragmentTextures; + + const maxSamples = isWebGL2 ? gl.getParameter( 36183 ) : 0; + + return { + + isWebGL2: isWebGL2, + + drawBuffers: drawBuffers, + + getMaxAnisotropy: getMaxAnisotropy, + getMaxPrecision: getMaxPrecision, + + precision: precision, + logarithmicDepthBuffer: logarithmicDepthBuffer, + + maxTextures: maxTextures, + maxVertexTextures: maxVertexTextures, + maxTextureSize: maxTextureSize, + maxCubemapSize: maxCubemapSize, + + maxAttributes: maxAttributes, + maxVertexUniforms: maxVertexUniforms, + maxVaryings: maxVaryings, + maxFragmentUniforms: maxFragmentUniforms, + + vertexTextures: vertexTextures, + floatFragmentTextures: floatFragmentTextures, + floatVertexTextures: floatVertexTextures, + + maxSamples: maxSamples + + }; + +} + +function WebGLClipping( properties ) { + + const scope = this; + + let globalState = null, + numGlobalPlanes = 0, + localClippingEnabled = false, + renderingShadows = false; + + const plane = new Plane(), + viewNormalMatrix = new Matrix3(), + + uniform = { value: null, needsUpdate: false }; + + this.uniform = uniform; + this.numPlanes = 0; + this.numIntersection = 0; + + this.init = function ( planes, enableLocalClipping, camera ) { + + const enabled = + planes.length !== 0 || + enableLocalClipping || + // enable state of previous frame - the clipping code has to + // run another frame in order to reset the state: + numGlobalPlanes !== 0 || + localClippingEnabled; + + localClippingEnabled = enableLocalClipping; + + globalState = projectPlanes( planes, camera, 0 ); + numGlobalPlanes = planes.length; + + return enabled; + + }; + + this.beginShadows = function () { + + renderingShadows = true; + projectPlanes( null ); + + }; + + this.endShadows = function () { + + renderingShadows = false; + resetGlobalState(); + + }; + + this.setState = function ( material, camera, useCache ) { + + const planes = material.clippingPlanes, + clipIntersection = material.clipIntersection, + clipShadows = material.clipShadows; + + const materialProperties = properties.get( material ); + + if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) { + + // there's no local clipping + + if ( renderingShadows ) { + + // there's no global clipping + + projectPlanes( null ); + + } else { + + resetGlobalState(); + + } + + } else { + + const nGlobal = renderingShadows ? 0 : numGlobalPlanes, + lGlobal = nGlobal * 4; + + let dstArray = materialProperties.clippingState || null; + + uniform.value = dstArray; // ensure unique state + + dstArray = projectPlanes( planes, camera, lGlobal, useCache ); + + for ( let i = 0; i !== lGlobal; ++ i ) { + + dstArray[ i ] = globalState[ i ]; + + } + + materialProperties.clippingState = dstArray; + this.numIntersection = clipIntersection ? this.numPlanes : 0; + this.numPlanes += nGlobal; + + } + + + }; + + function resetGlobalState() { + + if ( uniform.value !== globalState ) { + + uniform.value = globalState; + uniform.needsUpdate = numGlobalPlanes > 0; + + } + + scope.numPlanes = numGlobalPlanes; + scope.numIntersection = 0; + + } + + function projectPlanes( planes, camera, dstOffset, skipTransform ) { + + const nPlanes = planes !== null ? planes.length : 0; + let dstArray = null; + + if ( nPlanes !== 0 ) { + + dstArray = uniform.value; + + if ( skipTransform !== true || dstArray === null ) { + + const flatSize = dstOffset + nPlanes * 4, + viewMatrix = camera.matrixWorldInverse; + + viewNormalMatrix.getNormalMatrix( viewMatrix ); + + if ( dstArray === null || dstArray.length < flatSize ) { + + dstArray = new Float32Array( flatSize ); + + } + + for ( let i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) { + + plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix ); + + plane.normal.toArray( dstArray, i4 ); + dstArray[ i4 + 3 ] = plane.constant; + + } + + } + + uniform.value = dstArray; + uniform.needsUpdate = true; + + } + + scope.numPlanes = nPlanes; + scope.numIntersection = 0; + + return dstArray; + + } + +} + +function WebGLCubeMaps( renderer ) { + + let cubemaps = new WeakMap(); + + function mapTextureMapping( texture, mapping ) { + + if ( mapping === EquirectangularReflectionMapping ) { + + texture.mapping = CubeReflectionMapping; + + } else if ( mapping === EquirectangularRefractionMapping ) { + + texture.mapping = CubeRefractionMapping; + + } + + return texture; + + } + + function get( texture ) { + + if ( texture && texture.isTexture && texture.isRenderTargetTexture === false ) { + + const mapping = texture.mapping; + + if ( mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping ) { + + if ( cubemaps.has( texture ) ) { + + const cubemap = cubemaps.get( texture ).texture; + return mapTextureMapping( cubemap, texture.mapping ); + + } else { + + const image = texture.image; + + if ( image && image.height > 0 ) { + + const currentRenderTarget = renderer.getRenderTarget(); + + const renderTarget = new WebGLCubeRenderTarget( image.height / 2 ); + renderTarget.fromEquirectangularTexture( renderer, texture ); + cubemaps.set( texture, renderTarget ); + + renderer.setRenderTarget( currentRenderTarget ); + + texture.addEventListener( 'dispose', onTextureDispose ); + + return mapTextureMapping( renderTarget.texture, texture.mapping ); + + } else { + + // image not yet ready. try the conversion next frame + + return null; + + } + + } + + } + + } + + return texture; + + } + + function onTextureDispose( event ) { + + const texture = event.target; + + texture.removeEventListener( 'dispose', onTextureDispose ); + + const cubemap = cubemaps.get( texture ); + + if ( cubemap !== undefined ) { + + cubemaps.delete( texture ); + cubemap.dispose(); + + } + + } + + function dispose() { + + cubemaps = new WeakMap(); + + } + + return { + get: get, + dispose: dispose + }; + +} + +class OrthographicCamera extends Camera { + + constructor( left = - 1, right = 1, top = 1, bottom = - 1, near = 0.1, far = 2000 ) { + + super(); + + this.type = 'OrthographicCamera'; + + this.zoom = 1; + this.view = null; + + this.left = left; + this.right = right; + this.top = top; + this.bottom = bottom; + + this.near = near; + this.far = far; + + this.updateProjectionMatrix(); + + } + + copy( source, recursive ) { + + super.copy( source, recursive ); + + this.left = source.left; + this.right = source.right; + this.top = source.top; + this.bottom = source.bottom; + this.near = source.near; + this.far = source.far; + + this.zoom = source.zoom; + this.view = source.view === null ? null : Object.assign( {}, source.view ); + + return this; + + } + + setViewOffset( fullWidth, fullHeight, x, y, width, height ) { + + if ( this.view === null ) { + + this.view = { + enabled: true, + fullWidth: 1, + fullHeight: 1, + offsetX: 0, + offsetY: 0, + width: 1, + height: 1 + }; + + } + + this.view.enabled = true; + this.view.fullWidth = fullWidth; + this.view.fullHeight = fullHeight; + this.view.offsetX = x; + this.view.offsetY = y; + this.view.width = width; + this.view.height = height; + + this.updateProjectionMatrix(); + + } + + clearViewOffset() { + + if ( this.view !== null ) { + + this.view.enabled = false; + + } + + this.updateProjectionMatrix(); + + } + + updateProjectionMatrix() { + + const dx = ( this.right - this.left ) / ( 2 * this.zoom ); + const dy = ( this.top - this.bottom ) / ( 2 * this.zoom ); + const cx = ( this.right + this.left ) / 2; + const cy = ( this.top + this.bottom ) / 2; + + let left = cx - dx; + let right = cx + dx; + let top = cy + dy; + let bottom = cy - dy; + + if ( this.view !== null && this.view.enabled ) { + + const scaleW = ( this.right - this.left ) / this.view.fullWidth / this.zoom; + const scaleH = ( this.top - this.bottom ) / this.view.fullHeight / this.zoom; + + left += scaleW * this.view.offsetX; + right = left + scaleW * this.view.width; + top -= scaleH * this.view.offsetY; + bottom = top - scaleH * this.view.height; + + } + + this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far ); + + this.projectionMatrixInverse.copy( this.projectionMatrix ).invert(); + + } + + toJSON( meta ) { + + const data = super.toJSON( meta ); + + data.object.zoom = this.zoom; + data.object.left = this.left; + data.object.right = this.right; + data.object.top = this.top; + data.object.bottom = this.bottom; + data.object.near = this.near; + data.object.far = this.far; + + if ( this.view !== null ) data.object.view = Object.assign( {}, this.view ); + + return data; + + } + +} + +OrthographicCamera.prototype.isOrthographicCamera = true; + +class RawShaderMaterial extends ShaderMaterial { + + constructor( parameters ) { + + super( parameters ); + + this.type = 'RawShaderMaterial'; + + } + +} + +RawShaderMaterial.prototype.isRawShaderMaterial = true; + +const LOD_MIN = 4; +const LOD_MAX = 8; +const SIZE_MAX = Math.pow( 2, LOD_MAX ); + +// The standard deviations (radians) associated with the extra mips. These are +// chosen to approximate a Trowbridge-Reitz distribution function times the +// geometric shadowing function. These sigma values squared must match the +// variance #defines in cube_uv_reflection_fragment.glsl.js. +const EXTRA_LOD_SIGMA = [ 0.125, 0.215, 0.35, 0.446, 0.526, 0.582 ]; + +const TOTAL_LODS = LOD_MAX - LOD_MIN + 1 + EXTRA_LOD_SIGMA.length; + +// The maximum length of the blur for loop. Smaller sigmas will use fewer +// samples and exit early, but not recompile the shader. +const MAX_SAMPLES = 20; + +const ENCODINGS = { + [ LinearEncoding ]: 0, + [ sRGBEncoding ]: 1, + [ RGBEEncoding ]: 2, + [ RGBM7Encoding ]: 3, + [ RGBM16Encoding ]: 4, + [ RGBDEncoding ]: 5, + [ GammaEncoding ]: 6 +}; + +const _flatCamera = /*@__PURE__*/ new OrthographicCamera(); +const { _lodPlanes, _sizeLods, _sigmas } = /*@__PURE__*/ _createPlanes(); +const _clearColor = /*@__PURE__*/ new Color(); +let _oldTarget = null; + +// Golden Ratio +const PHI = ( 1 + Math.sqrt( 5 ) ) / 2; +const INV_PHI = 1 / PHI; + +// Vertices of a dodecahedron (except the opposites, which represent the +// same axis), used as axis directions evenly spread on a sphere. +const _axisDirections = [ + /*@__PURE__*/ new Vector3( 1, 1, 1 ), + /*@__PURE__*/ new Vector3( - 1, 1, 1 ), + /*@__PURE__*/ new Vector3( 1, 1, - 1 ), + /*@__PURE__*/ new Vector3( - 1, 1, - 1 ), + /*@__PURE__*/ new Vector3( 0, PHI, INV_PHI ), + /*@__PURE__*/ new Vector3( 0, PHI, - INV_PHI ), + /*@__PURE__*/ new Vector3( INV_PHI, 0, PHI ), + /*@__PURE__*/ new Vector3( - INV_PHI, 0, PHI ), + /*@__PURE__*/ new Vector3( PHI, INV_PHI, 0 ), + /*@__PURE__*/ new Vector3( - PHI, INV_PHI, 0 ) ]; + +/** + * This class generates a Prefiltered, Mipmapped Radiance Environment Map + * (PMREM) from a cubeMap environment texture. This allows different levels of + * blur to be quickly accessed based on material roughness. It is packed into a + * special CubeUV format that allows us to perform custom interpolation so that + * we can support nonlinear formats such as RGBE. Unlike a traditional mipmap + * chain, it only goes down to the LOD_MIN level (above), and then creates extra + * even more filtered 'mips' at the same LOD_MIN resolution, associated with + * higher roughness levels. In this way we maintain resolution to smoothly + * interpolate diffuse lighting while limiting sampling computation. + * + * Paper: Fast, Accurate Image-Based Lighting + * https://drive.google.com/file/d/15y8r_UpKlU9SvV4ILb0C3qCPecS8pvLz/view +*/ + +class PMREMGenerator { + + constructor( renderer ) { + + this._renderer = renderer; + this._pingPongRenderTarget = null; + + this._blurMaterial = _getBlurShader( MAX_SAMPLES ); + this._equirectShader = null; + this._cubemapShader = null; + + this._compileMaterial( this._blurMaterial ); + + } + + /** + * Generates a PMREM from a supplied Scene, which can be faster than using an + * image if networking bandwidth is low. Optional sigma specifies a blur radius + * in radians to be applied to the scene before PMREM generation. Optional near + * and far planes ensure the scene is rendered in its entirety (the cubeCamera + * is placed at the origin). + */ + fromScene( scene, sigma = 0, near = 0.1, far = 100 ) { + + _oldTarget = this._renderer.getRenderTarget(); + const cubeUVRenderTarget = this._allocateTargets(); + + this._sceneToCubeUV( scene, near, far, cubeUVRenderTarget ); + if ( sigma > 0 ) { + + this._blur( cubeUVRenderTarget, 0, 0, sigma ); + + } + + this._applyPMREM( cubeUVRenderTarget ); + this._cleanup( cubeUVRenderTarget ); + + return cubeUVRenderTarget; + + } + + /** + * Generates a PMREM from an equirectangular texture, which can be either LDR + * (RGBFormat) or HDR (RGBEFormat). The ideal input image size is 1k (1024 x 512), + * as this matches best with the 256 x 256 cubemap output. + */ + fromEquirectangular( equirectangular ) { + + return this._fromTexture( equirectangular ); + + } + + /** + * Generates a PMREM from an cubemap texture, which can be either LDR + * (RGBFormat) or HDR (RGBEFormat). The ideal input cube size is 256 x 256, + * as this matches best with the 256 x 256 cubemap output. + */ + fromCubemap( cubemap ) { + + return this._fromTexture( cubemap ); + + } + + /** + * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during + * your texture's network fetch for increased concurrency. + */ + compileCubemapShader() { + + if ( this._cubemapShader === null ) { + + this._cubemapShader = _getCubemapShader(); + this._compileMaterial( this._cubemapShader ); + + } + + } + + /** + * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during + * your texture's network fetch for increased concurrency. + */ + compileEquirectangularShader() { + + if ( this._equirectShader === null ) { + + this._equirectShader = _getEquirectShader(); + this._compileMaterial( this._equirectShader ); + + } + + } + + /** + * Disposes of the PMREMGenerator's internal memory. Note that PMREMGenerator is a static class, + * so you should not need more than one PMREMGenerator object. If you do, calling dispose() on + * one of them will cause any others to also become unusable. + */ + dispose() { + + this._blurMaterial.dispose(); + + if ( this._cubemapShader !== null ) this._cubemapShader.dispose(); + if ( this._equirectShader !== null ) this._equirectShader.dispose(); + + for ( let i = 0; i < _lodPlanes.length; i ++ ) { + + _lodPlanes[ i ].dispose(); + + } + + } + + // private interface + + _cleanup( outputTarget ) { + + this._pingPongRenderTarget.dispose(); + this._renderer.setRenderTarget( _oldTarget ); + outputTarget.scissorTest = false; + _setViewport( outputTarget, 0, 0, outputTarget.width, outputTarget.height ); + + } + + _fromTexture( texture ) { + + _oldTarget = this._renderer.getRenderTarget(); + const cubeUVRenderTarget = this._allocateTargets( texture ); + this._textureToCubeUV( texture, cubeUVRenderTarget ); + this._applyPMREM( cubeUVRenderTarget ); + this._cleanup( cubeUVRenderTarget ); + + return cubeUVRenderTarget; + + } + + _allocateTargets( texture ) { // warning: null texture is valid + + const params = { + magFilter: NearestFilter, + minFilter: NearestFilter, + generateMipmaps: false, + type: UnsignedByteType, + format: RGBEFormat, + encoding: _isLDR( texture ) ? texture.encoding : RGBEEncoding, + depthBuffer: false + }; + + const cubeUVRenderTarget = _createRenderTarget( params ); + cubeUVRenderTarget.depthBuffer = texture ? false : true; + this._pingPongRenderTarget = _createRenderTarget( params ); + return cubeUVRenderTarget; + + } + + _compileMaterial( material ) { + + const tmpMesh = new Mesh( _lodPlanes[ 0 ], material ); + this._renderer.compile( tmpMesh, _flatCamera ); + + } + + _sceneToCubeUV( scene, near, far, cubeUVRenderTarget ) { + + const fov = 90; + const aspect = 1; + const cubeCamera = new PerspectiveCamera( fov, aspect, near, far ); + const upSign = [ 1, - 1, 1, 1, 1, 1 ]; + const forwardSign = [ 1, 1, 1, - 1, - 1, - 1 ]; + const renderer = this._renderer; + + const originalAutoClear = renderer.autoClear; + const outputEncoding = renderer.outputEncoding; + const toneMapping = renderer.toneMapping; + renderer.getClearColor( _clearColor ); + + renderer.toneMapping = NoToneMapping; + renderer.outputEncoding = LinearEncoding; + renderer.autoClear = false; + + const backgroundMaterial = new MeshBasicMaterial( { + name: 'PMREM.Background', + side: BackSide, + depthWrite: false, + depthTest: false, + } ); + + const backgroundBox = new Mesh( new BoxGeometry(), backgroundMaterial ); + + let useSolidColor = false; + const background = scene.background; + + if ( background ) { + + if ( background.isColor ) { + + backgroundMaterial.color.copy( background ); + scene.background = null; + useSolidColor = true; + + } + + } else { + + backgroundMaterial.color.copy( _clearColor ); + useSolidColor = true; + + } + + for ( let i = 0; i < 6; i ++ ) { + + const col = i % 3; + if ( col == 0 ) { + + cubeCamera.up.set( 0, upSign[ i ], 0 ); + cubeCamera.lookAt( forwardSign[ i ], 0, 0 ); + + } else if ( col == 1 ) { + + cubeCamera.up.set( 0, 0, upSign[ i ] ); + cubeCamera.lookAt( 0, forwardSign[ i ], 0 ); + + } else { + + cubeCamera.up.set( 0, upSign[ i ], 0 ); + cubeCamera.lookAt( 0, 0, forwardSign[ i ] ); + + } + + _setViewport( cubeUVRenderTarget, + col * SIZE_MAX, i > 2 ? SIZE_MAX : 0, SIZE_MAX, SIZE_MAX ); + renderer.setRenderTarget( cubeUVRenderTarget ); + + if ( useSolidColor ) { + + renderer.render( backgroundBox, cubeCamera ); + + } + + renderer.render( scene, cubeCamera ); + + } + + backgroundBox.geometry.dispose(); + backgroundBox.material.dispose(); + + renderer.toneMapping = toneMapping; + renderer.outputEncoding = outputEncoding; + renderer.autoClear = originalAutoClear; + scene.background = background; + + } + + _setEncoding( uniform, texture ) { + + if ( this._renderer.capabilities.isWebGL2 === true && texture.format === RGBAFormat && texture.type === UnsignedByteType && texture.encoding === sRGBEncoding ) { + + uniform.value = ENCODINGS[ LinearEncoding ]; + + } else { + + uniform.value = ENCODINGS[ texture.encoding ]; + + } + + } + + _textureToCubeUV( texture, cubeUVRenderTarget ) { + + const renderer = this._renderer; + + const isCubeTexture = ( texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping ); + + if ( isCubeTexture ) { + + if ( this._cubemapShader == null ) { + + this._cubemapShader = _getCubemapShader(); + + } + + } else { + + if ( this._equirectShader == null ) { + + this._equirectShader = _getEquirectShader(); + + } + + } + + const material = isCubeTexture ? this._cubemapShader : this._equirectShader; + const mesh = new Mesh( _lodPlanes[ 0 ], material ); + + const uniforms = material.uniforms; + + uniforms[ 'envMap' ].value = texture; + + if ( ! isCubeTexture ) { + + uniforms[ 'texelSize' ].value.set( 1.0 / texture.image.width, 1.0 / texture.image.height ); + + } + + this._setEncoding( uniforms[ 'inputEncoding' ], texture ); + this._setEncoding( uniforms[ 'outputEncoding' ], cubeUVRenderTarget.texture ); + + _setViewport( cubeUVRenderTarget, 0, 0, 3 * SIZE_MAX, 2 * SIZE_MAX ); + + renderer.setRenderTarget( cubeUVRenderTarget ); + renderer.render( mesh, _flatCamera ); + + } + + _applyPMREM( cubeUVRenderTarget ) { + + const renderer = this._renderer; + const autoClear = renderer.autoClear; + renderer.autoClear = false; + + for ( let i = 1; i < TOTAL_LODS; i ++ ) { + + const sigma = Math.sqrt( _sigmas[ i ] * _sigmas[ i ] - _sigmas[ i - 1 ] * _sigmas[ i - 1 ] ); + + const poleAxis = _axisDirections[ ( i - 1 ) % _axisDirections.length ]; + + this._blur( cubeUVRenderTarget, i - 1, i, sigma, poleAxis ); + + } + + renderer.autoClear = autoClear; + + } + + /** + * This is a two-pass Gaussian blur for a cubemap. Normally this is done + * vertically and horizontally, but this breaks down on a cube. Here we apply + * the blur latitudinally (around the poles), and then longitudinally (towards + * the poles) to approximate the orthogonally-separable blur. It is least + * accurate at the poles, but still does a decent job. + */ + _blur( cubeUVRenderTarget, lodIn, lodOut, sigma, poleAxis ) { + + const pingPongRenderTarget = this._pingPongRenderTarget; + + this._halfBlur( + cubeUVRenderTarget, + pingPongRenderTarget, + lodIn, + lodOut, + sigma, + 'latitudinal', + poleAxis ); + + this._halfBlur( + pingPongRenderTarget, + cubeUVRenderTarget, + lodOut, + lodOut, + sigma, + 'longitudinal', + poleAxis ); + + } + + _halfBlur( targetIn, targetOut, lodIn, lodOut, sigmaRadians, direction, poleAxis ) { + + const renderer = this._renderer; + const blurMaterial = this._blurMaterial; + + if ( direction !== 'latitudinal' && direction !== 'longitudinal' ) { + + console.error( + 'blur direction must be either latitudinal or longitudinal!' ); + + } + + // Number of standard deviations at which to cut off the discrete approximation. + const STANDARD_DEVIATIONS = 3; + + const blurMesh = new Mesh( _lodPlanes[ lodOut ], blurMaterial ); + const blurUniforms = blurMaterial.uniforms; + + const pixels = _sizeLods[ lodIn ] - 1; + const radiansPerPixel = isFinite( sigmaRadians ) ? Math.PI / ( 2 * pixels ) : 2 * Math.PI / ( 2 * MAX_SAMPLES - 1 ); + const sigmaPixels = sigmaRadians / radiansPerPixel; + const samples = isFinite( sigmaRadians ) ? 1 + Math.floor( STANDARD_DEVIATIONS * sigmaPixels ) : MAX_SAMPLES; + + if ( samples > MAX_SAMPLES ) { + + console.warn( `sigmaRadians, ${ + sigmaRadians}, is too large and will clip, as it requested ${ + samples} samples when the maximum is set to ${MAX_SAMPLES}` ); + + } + + const weights = []; + let sum = 0; + + for ( let i = 0; i < MAX_SAMPLES; ++ i ) { + + const x = i / sigmaPixels; + const weight = Math.exp( - x * x / 2 ); + weights.push( weight ); + + if ( i == 0 ) { + + sum += weight; + + } else if ( i < samples ) { + + sum += 2 * weight; + + } + + } + + for ( let i = 0; i < weights.length; i ++ ) { + + weights[ i ] = weights[ i ] / sum; + + } + + blurUniforms[ 'envMap' ].value = targetIn.texture; + blurUniforms[ 'samples' ].value = samples; + blurUniforms[ 'weights' ].value = weights; + blurUniforms[ 'latitudinal' ].value = direction === 'latitudinal'; + + if ( poleAxis ) { + + blurUniforms[ 'poleAxis' ].value = poleAxis; + + } + + blurUniforms[ 'dTheta' ].value = radiansPerPixel; + blurUniforms[ 'mipInt' ].value = LOD_MAX - lodIn; + + this._setEncoding( blurUniforms[ 'inputEncoding' ], targetIn.texture ); + this._setEncoding( blurUniforms[ 'outputEncoding' ], targetIn.texture ); + + const outputSize = _sizeLods[ lodOut ]; + const x = 3 * Math.max( 0, SIZE_MAX - 2 * outputSize ); + const y = ( lodOut === 0 ? 0 : 2 * SIZE_MAX ) + 2 * outputSize * ( lodOut > LOD_MAX - LOD_MIN ? lodOut - LOD_MAX + LOD_MIN : 0 ); + + _setViewport( targetOut, x, y, 3 * outputSize, 2 * outputSize ); + renderer.setRenderTarget( targetOut ); + renderer.render( blurMesh, _flatCamera ); + + } + +} + +function _isLDR( texture ) { + + if ( texture === undefined || texture.type !== UnsignedByteType ) return false; + + return texture.encoding === LinearEncoding || texture.encoding === sRGBEncoding || texture.encoding === GammaEncoding; + +} + +function _createPlanes() { + + const _lodPlanes = []; + const _sizeLods = []; + const _sigmas = []; + + let lod = LOD_MAX; + + for ( let i = 0; i < TOTAL_LODS; i ++ ) { + + const sizeLod = Math.pow( 2, lod ); + _sizeLods.push( sizeLod ); + let sigma = 1.0 / sizeLod; + + if ( i > LOD_MAX - LOD_MIN ) { + + sigma = EXTRA_LOD_SIGMA[ i - LOD_MAX + LOD_MIN - 1 ]; + + } else if ( i == 0 ) { + + sigma = 0; + + } + + _sigmas.push( sigma ); + + const texelSize = 1.0 / ( sizeLod - 1 ); + const min = - texelSize / 2; + const max = 1 + texelSize / 2; + const uv1 = [ min, min, max, min, max, max, min, min, max, max, min, max ]; + + const cubeFaces = 6; + const vertices = 6; + const positionSize = 3; + const uvSize = 2; + const faceIndexSize = 1; + + const position = new Float32Array( positionSize * vertices * cubeFaces ); + const uv = new Float32Array( uvSize * vertices * cubeFaces ); + const faceIndex = new Float32Array( faceIndexSize * vertices * cubeFaces ); + + for ( let face = 0; face < cubeFaces; face ++ ) { + + const x = ( face % 3 ) * 2 / 3 - 1; + const y = face > 2 ? 0 : - 1; + const coordinates = [ + x, y, 0, + x + 2 / 3, y, 0, + x + 2 / 3, y + 1, 0, + x, y, 0, + x + 2 / 3, y + 1, 0, + x, y + 1, 0 + ]; + position.set( coordinates, positionSize * vertices * face ); + uv.set( uv1, uvSize * vertices * face ); + const fill = [ face, face, face, face, face, face ]; + faceIndex.set( fill, faceIndexSize * vertices * face ); + + } + + const planes = new BufferGeometry(); + planes.setAttribute( 'position', new BufferAttribute( position, positionSize ) ); + planes.setAttribute( 'uv', new BufferAttribute( uv, uvSize ) ); + planes.setAttribute( 'faceIndex', new BufferAttribute( faceIndex, faceIndexSize ) ); + _lodPlanes.push( planes ); + + if ( lod > LOD_MIN ) { + + lod --; + + } + + } + + return { _lodPlanes, _sizeLods, _sigmas }; + +} + +function _createRenderTarget( params ) { + + const cubeUVRenderTarget = new WebGLRenderTarget( 3 * SIZE_MAX, 3 * SIZE_MAX, params ); + cubeUVRenderTarget.texture.mapping = CubeUVReflectionMapping; + cubeUVRenderTarget.texture.name = 'PMREM.cubeUv'; + cubeUVRenderTarget.scissorTest = true; + return cubeUVRenderTarget; + +} + +function _setViewport( target, x, y, width, height ) { + + target.viewport.set( x, y, width, height ); + target.scissor.set( x, y, width, height ); + +} + +function _getBlurShader( maxSamples ) { + + const weights = new Float32Array( maxSamples ); + const poleAxis = new Vector3( 0, 1, 0 ); + const shaderMaterial = new RawShaderMaterial( { + + name: 'SphericalGaussianBlur', + + defines: { 'n': maxSamples }, + + uniforms: { + 'envMap': { value: null }, + 'samples': { value: 1 }, + 'weights': { value: weights }, + 'latitudinal': { value: false }, + 'dTheta': { value: 0 }, + 'mipInt': { value: 0 }, + 'poleAxis': { value: poleAxis }, + 'inputEncoding': { value: ENCODINGS[ LinearEncoding ] }, + 'outputEncoding': { value: ENCODINGS[ LinearEncoding ] } + }, + + vertexShader: _getCommonVertexShader(), + + fragmentShader: /* glsl */` + + precision mediump float; + precision mediump int; + + varying vec3 vOutputDirection; + + uniform sampler2D envMap; + uniform int samples; + uniform float weights[ n ]; + uniform bool latitudinal; + uniform float dTheta; + uniform float mipInt; + uniform vec3 poleAxis; + + ${ _getEncodings() } + + #define ENVMAP_TYPE_CUBE_UV + #include + + vec3 getSample( float theta, vec3 axis ) { + + float cosTheta = cos( theta ); + // Rodrigues' axis-angle rotation + vec3 sampleDirection = vOutputDirection * cosTheta + + cross( axis, vOutputDirection ) * sin( theta ) + + axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta ); + + return bilinearCubeUV( envMap, sampleDirection, mipInt ); + + } + + void main() { + + vec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection ); + + if ( all( equal( axis, vec3( 0.0 ) ) ) ) { + + axis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x ); + + } + + axis = normalize( axis ); + + gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 ); + gl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis ); + + for ( int i = 1; i < n; i++ ) { + + if ( i >= samples ) { + + break; + + } + + float theta = dTheta * float( i ); + gl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis ); + gl_FragColor.rgb += weights[ i ] * getSample( theta, axis ); + + } + + gl_FragColor = linearToOutputTexel( gl_FragColor ); + + } + `, + + blending: NoBlending, + depthTest: false, + depthWrite: false + + } ); + + return shaderMaterial; + +} + +function _getEquirectShader() { + + const texelSize = new Vector2( 1, 1 ); + const shaderMaterial = new RawShaderMaterial( { + + name: 'EquirectangularToCubeUV', + + uniforms: { + 'envMap': { value: null }, + 'texelSize': { value: texelSize }, + 'inputEncoding': { value: ENCODINGS[ LinearEncoding ] }, + 'outputEncoding': { value: ENCODINGS[ LinearEncoding ] } + }, + + vertexShader: _getCommonVertexShader(), + + fragmentShader: /* glsl */` + + precision mediump float; + precision mediump int; + + varying vec3 vOutputDirection; + + uniform sampler2D envMap; + uniform vec2 texelSize; + + ${ _getEncodings() } + + #include + + void main() { + + gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 ); + + vec3 outputDirection = normalize( vOutputDirection ); + vec2 uv = equirectUv( outputDirection ); + + vec2 f = fract( uv / texelSize - 0.5 ); + uv -= f * texelSize; + vec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb; + uv.x += texelSize.x; + vec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb; + uv.y += texelSize.y; + vec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb; + uv.x -= texelSize.x; + vec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb; + + vec3 tm = mix( tl, tr, f.x ); + vec3 bm = mix( bl, br, f.x ); + gl_FragColor.rgb = mix( tm, bm, f.y ); + + gl_FragColor = linearToOutputTexel( gl_FragColor ); + + } + `, + + blending: NoBlending, + depthTest: false, + depthWrite: false + + } ); + + return shaderMaterial; + +} + +function _getCubemapShader() { + + const shaderMaterial = new RawShaderMaterial( { + + name: 'CubemapToCubeUV', + + uniforms: { + 'envMap': { value: null }, + 'inputEncoding': { value: ENCODINGS[ LinearEncoding ] }, + 'outputEncoding': { value: ENCODINGS[ LinearEncoding ] } + }, + + vertexShader: _getCommonVertexShader(), + + fragmentShader: /* glsl */` + + precision mediump float; + precision mediump int; + + varying vec3 vOutputDirection; + + uniform samplerCube envMap; + + ${ _getEncodings() } + + void main() { + + gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 ); + gl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb; + gl_FragColor = linearToOutputTexel( gl_FragColor ); + + } + `, + + blending: NoBlending, + depthTest: false, + depthWrite: false + + } ); + + return shaderMaterial; + +} + +function _getCommonVertexShader() { + + return /* glsl */` + + precision mediump float; + precision mediump int; + + attribute vec3 position; + attribute vec2 uv; + attribute float faceIndex; + + varying vec3 vOutputDirection; + + // RH coordinate system; PMREM face-indexing convention + vec3 getDirection( vec2 uv, float face ) { + + uv = 2.0 * uv - 1.0; + + vec3 direction = vec3( uv, 1.0 ); + + if ( face == 0.0 ) { + + direction = direction.zyx; // ( 1, v, u ) pos x + + } else if ( face == 1.0 ) { + + direction = direction.xzy; + direction.xz *= -1.0; // ( -u, 1, -v ) pos y + + } else if ( face == 2.0 ) { + + direction.x *= -1.0; // ( -u, v, 1 ) pos z + + } else if ( face == 3.0 ) { + + direction = direction.zyx; + direction.xz *= -1.0; // ( -1, v, -u ) neg x + + } else if ( face == 4.0 ) { + + direction = direction.xzy; + direction.xy *= -1.0; // ( -u, -1, v ) neg y + + } else if ( face == 5.0 ) { + + direction.z *= -1.0; // ( u, v, -1 ) neg z + + } + + return direction; + + } + + void main() { + + vOutputDirection = getDirection( uv, faceIndex ); + gl_Position = vec4( position, 1.0 ); + + } + `; + +} + +function _getEncodings() { + + return /* glsl */` + + uniform int inputEncoding; + uniform int outputEncoding; + + #include + + vec4 inputTexelToLinear( vec4 value ) { + + if ( inputEncoding == 0 ) { + + return value; + + } else if ( inputEncoding == 1 ) { + + return sRGBToLinear( value ); + + } else if ( inputEncoding == 2 ) { + + return RGBEToLinear( value ); + + } else if ( inputEncoding == 3 ) { + + return RGBMToLinear( value, 7.0 ); + + } else if ( inputEncoding == 4 ) { + + return RGBMToLinear( value, 16.0 ); + + } else if ( inputEncoding == 5 ) { + + return RGBDToLinear( value, 256.0 ); + + } else { + + return GammaToLinear( value, 2.2 ); + + } + + } + + vec4 linearToOutputTexel( vec4 value ) { + + if ( outputEncoding == 0 ) { + + return value; + + } else if ( outputEncoding == 1 ) { + + return LinearTosRGB( value ); + + } else if ( outputEncoding == 2 ) { + + return LinearToRGBE( value ); + + } else if ( outputEncoding == 3 ) { + + return LinearToRGBM( value, 7.0 ); + + } else if ( outputEncoding == 4 ) { + + return LinearToRGBM( value, 16.0 ); + + } else if ( outputEncoding == 5 ) { + + return LinearToRGBD( value, 256.0 ); + + } else { + + return LinearToGamma( value, 2.2 ); + + } + + } + + vec4 envMapTexelToLinear( vec4 color ) { + + return inputTexelToLinear( color ); + + } + `; + +} + +function WebGLCubeUVMaps( renderer ) { + + let cubeUVmaps = new WeakMap(); + + let pmremGenerator = null; + + function get( texture ) { + + if ( texture && texture.isTexture && texture.isRenderTargetTexture === false ) { + + const mapping = texture.mapping; + + const isEquirectMap = ( mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping ); + const isCubeMap = ( mapping === CubeReflectionMapping || mapping === CubeRefractionMapping ); + + if ( isEquirectMap || isCubeMap ) { + + // equirect/cube map to cubeUV conversion + + if ( cubeUVmaps.has( texture ) ) { + + return cubeUVmaps.get( texture ).texture; + + } else { + + const image = texture.image; + + if ( ( isEquirectMap && image && image.height > 0 ) || ( isCubeMap && image && isCubeTextureComplete( image ) ) ) { + + const currentRenderTarget = renderer.getRenderTarget(); + + if ( pmremGenerator === null ) pmremGenerator = new PMREMGenerator( renderer ); + + const renderTarget = isEquirectMap ? pmremGenerator.fromEquirectangular( texture ) : pmremGenerator.fromCubemap( texture ); + cubeUVmaps.set( texture, renderTarget ); + + renderer.setRenderTarget( currentRenderTarget ); + + texture.addEventListener( 'dispose', onTextureDispose ); + + return renderTarget.texture; + + } else { + + // image not yet ready. try the conversion next frame + + return null; + + } + + } + + } + + } + + return texture; + + } + + function isCubeTextureComplete( image ) { + + let count = 0; + const length = 6; + + for ( let i = 0; i < length; i ++ ) { + + if ( image[ i ] !== undefined ) count ++; + + } + + return count === length; + + + } + + function onTextureDispose( event ) { + + const texture = event.target; + + texture.removeEventListener( 'dispose', onTextureDispose ); + + const cubemapUV = cubeUVmaps.get( texture ); + + if ( cubemapUV !== undefined ) { + + cubeUVmaps.delete( texture ); + cubemapUV.dispose(); + + } + + } + + function dispose() { + + cubeUVmaps = new WeakMap(); + + if ( pmremGenerator !== null ) { + + pmremGenerator.dispose(); + pmremGenerator = null; + + } + + } + + return { + get: get, + dispose: dispose + }; + +} + +function WebGLExtensions( gl ) { + + const extensions = {}; + + function getExtension( name ) { + + if ( extensions[ name ] !== undefined ) { + + return extensions[ name ]; + + } + + let extension; + + switch ( name ) { + + case 'WEBGL_depth_texture': + extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' ); + break; + + case 'EXT_texture_filter_anisotropic': + extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' ); + break; + + case 'WEBGL_compressed_texture_s3tc': + extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' ); + break; + + case 'WEBGL_compressed_texture_pvrtc': + extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' ); + break; + + default: + extension = gl.getExtension( name ); + + } + + extensions[ name ] = extension; + + return extension; + + } + + return { + + has: function ( name ) { + + return getExtension( name ) !== null; + + }, + + init: function ( capabilities ) { + + if ( capabilities.isWebGL2 ) { + + getExtension( 'EXT_color_buffer_float' ); + + } else { + + getExtension( 'WEBGL_depth_texture' ); + getExtension( 'OES_texture_float' ); + getExtension( 'OES_texture_half_float' ); + getExtension( 'OES_texture_half_float_linear' ); + getExtension( 'OES_standard_derivatives' ); + getExtension( 'OES_element_index_uint' ); + getExtension( 'OES_vertex_array_object' ); + getExtension( 'ANGLE_instanced_arrays' ); + + } + + getExtension( 'OES_texture_float_linear' ); + getExtension( 'EXT_color_buffer_half_float' ); + + }, + + get: function ( name ) { + + const extension = getExtension( name ); + + if ( extension === null ) { + + console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' ); + + } + + return extension; + + } + + }; + +} + +function WebGLGeometries( gl, attributes, info, bindingStates ) { + + const geometries = {}; + const wireframeAttributes = new WeakMap(); + + function onGeometryDispose( event ) { + + const geometry = event.target; + + if ( geometry.index !== null ) { + + attributes.remove( geometry.index ); + + } + + for ( const name in geometry.attributes ) { + + attributes.remove( geometry.attributes[ name ] ); + + } + + geometry.removeEventListener( 'dispose', onGeometryDispose ); + + delete geometries[ geometry.id ]; + + const attribute = wireframeAttributes.get( geometry ); + + if ( attribute ) { + + attributes.remove( attribute ); + wireframeAttributes.delete( geometry ); + + } + + bindingStates.releaseStatesOfGeometry( geometry ); + + if ( geometry.isInstancedBufferGeometry === true ) { + + delete geometry._maxInstanceCount; + + } + + // + + info.memory.geometries --; + + } + + function get( object, geometry ) { + + if ( geometries[ geometry.id ] === true ) return geometry; + + geometry.addEventListener( 'dispose', onGeometryDispose ); + + geometries[ geometry.id ] = true; + + info.memory.geometries ++; + + return geometry; + + } + + function update( geometry ) { + + const geometryAttributes = geometry.attributes; + + // Updating index buffer in VAO now. See WebGLBindingStates. + + for ( const name in geometryAttributes ) { + + attributes.update( geometryAttributes[ name ], 34962 ); + + } + + // morph targets + + const morphAttributes = geometry.morphAttributes; + + for ( const name in morphAttributes ) { + + const array = morphAttributes[ name ]; + + for ( let i = 0, l = array.length; i < l; i ++ ) { + + attributes.update( array[ i ], 34962 ); + + } + + } + + } + + function updateWireframeAttribute( geometry ) { + + const indices = []; + + const geometryIndex = geometry.index; + const geometryPosition = geometry.attributes.position; + let version = 0; + + if ( geometryIndex !== null ) { + + const array = geometryIndex.array; + version = geometryIndex.version; + + for ( let i = 0, l = array.length; i < l; i += 3 ) { + + const a = array[ i + 0 ]; + const b = array[ i + 1 ]; + const c = array[ i + 2 ]; + + indices.push( a, b, b, c, c, a ); + + } + + } else { + + const array = geometryPosition.array; + version = geometryPosition.version; + + for ( let i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) { + + const a = i + 0; + const b = i + 1; + const c = i + 2; + + indices.push( a, b, b, c, c, a ); + + } + + } + + const attribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 ); + attribute.version = version; + + // Updating index buffer in VAO now. See WebGLBindingStates + + // + + const previousAttribute = wireframeAttributes.get( geometry ); + + if ( previousAttribute ) attributes.remove( previousAttribute ); + + // + + wireframeAttributes.set( geometry, attribute ); + + } + + function getWireframeAttribute( geometry ) { + + const currentAttribute = wireframeAttributes.get( geometry ); + + if ( currentAttribute ) { + + const geometryIndex = geometry.index; + + if ( geometryIndex !== null ) { + + // if the attribute is obsolete, create a new one + + if ( currentAttribute.version < geometryIndex.version ) { + + updateWireframeAttribute( geometry ); + + } + + } + + } else { + + updateWireframeAttribute( geometry ); + + } + + return wireframeAttributes.get( geometry ); + + } + + return { + + get: get, + update: update, + + getWireframeAttribute: getWireframeAttribute + + }; + +} + +function WebGLIndexedBufferRenderer( gl, extensions, info, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + let mode; + + function setMode( value ) { + + mode = value; + + } + + let type, bytesPerElement; + + function setIndex( value ) { + + type = value.type; + bytesPerElement = value.bytesPerElement; + + } + + function render( start, count ) { + + gl.drawElements( mode, count, type, start * bytesPerElement ); + + info.update( count, mode, 1 ); + + } + + function renderInstances( start, count, primcount ) { + + if ( primcount === 0 ) return; + + let extension, methodName; + + if ( isWebGL2 ) { + + extension = gl; + methodName = 'drawElementsInstanced'; + + } else { + + extension = extensions.get( 'ANGLE_instanced_arrays' ); + methodName = 'drawElementsInstancedANGLE'; + + if ( extension === null ) { + + console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' ); + return; + + } + + } + + extension[ methodName ]( mode, count, type, start * bytesPerElement, primcount ); + + info.update( count, mode, primcount ); + + } + + // + + this.setMode = setMode; + this.setIndex = setIndex; + this.render = render; + this.renderInstances = renderInstances; + +} + +function WebGLInfo( gl ) { + + const memory = { + geometries: 0, + textures: 0 + }; + + const render = { + frame: 0, + calls: 0, + triangles: 0, + points: 0, + lines: 0 + }; + + function update( count, mode, instanceCount ) { + + render.calls ++; + + switch ( mode ) { + + case 4: + render.triangles += instanceCount * ( count / 3 ); + break; + + case 1: + render.lines += instanceCount * ( count / 2 ); + break; + + case 3: + render.lines += instanceCount * ( count - 1 ); + break; + + case 2: + render.lines += instanceCount * count; + break; + + case 0: + render.points += instanceCount * count; + break; + + default: + console.error( 'THREE.WebGLInfo: Unknown draw mode:', mode ); + break; + + } + + } + + function reset() { + + render.frame ++; + render.calls = 0; + render.triangles = 0; + render.points = 0; + render.lines = 0; + + } + + return { + memory: memory, + render: render, + programs: null, + autoReset: true, + reset: reset, + update: update + }; + +} + +class DataTexture2DArray extends Texture { + + constructor( data = null, width = 1, height = 1, depth = 1 ) { + + super( null ); + + this.image = { data, width, height, depth }; + + this.magFilter = NearestFilter; + this.minFilter = NearestFilter; + + this.wrapR = ClampToEdgeWrapping; + + this.generateMipmaps = false; + this.flipY = false; + this.unpackAlignment = 1; + + this.needsUpdate = true; + + } + +} + +DataTexture2DArray.prototype.isDataTexture2DArray = true; + +function numericalSort( a, b ) { + + return a[ 0 ] - b[ 0 ]; + +} + +function absNumericalSort( a, b ) { + + return Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] ); + +} + +function denormalize( morph, attribute ) { + + let denominator = 1; + const array = attribute.isInterleavedBufferAttribute ? attribute.data.array : attribute.array; + + if ( array instanceof Int8Array ) denominator = 127; + else if ( array instanceof Int16Array ) denominator = 32767; + else if ( array instanceof Int32Array ) denominator = 2147483647; + else console.error( 'THREE.WebGLMorphtargets: Unsupported morph attribute data type: ', array ); + + morph.divideScalar( denominator ); + +} + +function WebGLMorphtargets( gl, capabilities, textures ) { + + const influencesList = {}; + const morphInfluences = new Float32Array( 8 ); + const morphTextures = new WeakMap(); + const morph = new Vector3(); + + const workInfluences = []; + + for ( let i = 0; i < 8; i ++ ) { + + workInfluences[ i ] = [ i, 0 ]; + + } + + function update( object, geometry, material, program ) { + + const objectInfluences = object.morphTargetInfluences; + + if ( capabilities.isWebGL2 === true ) { + + // instead of using attributes, the WebGL 2 code path encodes morph targets + // into an array of data textures. Each layer represents a single morph target. + + const numberOfMorphTargets = geometry.morphAttributes.position.length; + + let entry = morphTextures.get( geometry ); + + if ( entry === undefined || entry.count !== numberOfMorphTargets ) { + + if ( entry !== undefined ) entry.texture.dispose(); + + const hasMorphNormals = geometry.morphAttributes.normal !== undefined; + + const morphTargets = geometry.morphAttributes.position; + const morphNormals = geometry.morphAttributes.normal || []; + + const numberOfVertices = geometry.attributes.position.count; + const numberOfVertexData = ( hasMorphNormals === true ) ? 2 : 1; // (v,n) vs. (v) + + let width = numberOfVertices * numberOfVertexData; + let height = 1; + + if ( width > capabilities.maxTextureSize ) { + + height = Math.ceil( width / capabilities.maxTextureSize ); + width = capabilities.maxTextureSize; + + } + + const buffer = new Float32Array( width * height * 4 * numberOfMorphTargets ); + + const texture = new DataTexture2DArray( buffer, width, height, numberOfMorphTargets ); + texture.format = RGBAFormat; // using RGBA since RGB might be emulated (and is thus slower) + texture.type = FloatType; + + // fill buffer + + const vertexDataStride = numberOfVertexData * 4; + + for ( let i = 0; i < numberOfMorphTargets; i ++ ) { + + const morphTarget = morphTargets[ i ]; + const morphNormal = morphNormals[ i ]; + + const offset = width * height * 4 * i; + + for ( let j = 0; j < morphTarget.count; j ++ ) { + + morph.fromBufferAttribute( morphTarget, j ); + + if ( morphTarget.normalized === true ) denormalize( morph, morphTarget ); + + const stride = j * vertexDataStride; + + buffer[ offset + stride + 0 ] = morph.x; + buffer[ offset + stride + 1 ] = morph.y; + buffer[ offset + stride + 2 ] = morph.z; + buffer[ offset + stride + 3 ] = 0; + + if ( hasMorphNormals === true ) { + + morph.fromBufferAttribute( morphNormal, j ); + + if ( morphNormal.normalized === true ) denormalize( morph, morphNormal ); + + buffer[ offset + stride + 4 ] = morph.x; + buffer[ offset + stride + 5 ] = morph.y; + buffer[ offset + stride + 6 ] = morph.z; + buffer[ offset + stride + 7 ] = 0; + + } + + } + + } + + entry = { + count: numberOfMorphTargets, + texture: texture, + size: new Vector2( width, height ) + }; + + morphTextures.set( geometry, entry ); + + } + + // + + let morphInfluencesSum = 0; + + for ( let i = 0; i < objectInfluences.length; i ++ ) { + + morphInfluencesSum += objectInfluences[ i ]; + + } + + const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum; + + program.getUniforms().setValue( gl, 'morphTargetBaseInfluence', morphBaseInfluence ); + program.getUniforms().setValue( gl, 'morphTargetInfluences', objectInfluences ); + + program.getUniforms().setValue( gl, 'morphTargetsTexture', entry.texture, textures ); + program.getUniforms().setValue( gl, 'morphTargetsTextureSize', entry.size ); + + + } else { + + // When object doesn't have morph target influences defined, we treat it as a 0-length array + // This is important to make sure we set up morphTargetBaseInfluence / morphTargetInfluences + + const length = objectInfluences === undefined ? 0 : objectInfluences.length; + + let influences = influencesList[ geometry.id ]; + + if ( influences === undefined || influences.length !== length ) { + + // initialise list + + influences = []; + + for ( let i = 0; i < length; i ++ ) { + + influences[ i ] = [ i, 0 ]; + + } + + influencesList[ geometry.id ] = influences; + + } + + // Collect influences + + for ( let i = 0; i < length; i ++ ) { + + const influence = influences[ i ]; + + influence[ 0 ] = i; + influence[ 1 ] = objectInfluences[ i ]; + + } + + influences.sort( absNumericalSort ); + + for ( let i = 0; i < 8; i ++ ) { + + if ( i < length && influences[ i ][ 1 ] ) { + + workInfluences[ i ][ 0 ] = influences[ i ][ 0 ]; + workInfluences[ i ][ 1 ] = influences[ i ][ 1 ]; + + } else { + + workInfluences[ i ][ 0 ] = Number.MAX_SAFE_INTEGER; + workInfluences[ i ][ 1 ] = 0; + + } + + } + + workInfluences.sort( numericalSort ); + + const morphTargets = geometry.morphAttributes.position; + const morphNormals = geometry.morphAttributes.normal; + + let morphInfluencesSum = 0; + + for ( let i = 0; i < 8; i ++ ) { + + const influence = workInfluences[ i ]; + const index = influence[ 0 ]; + const value = influence[ 1 ]; + + if ( index !== Number.MAX_SAFE_INTEGER && value ) { + + if ( morphTargets && geometry.getAttribute( 'morphTarget' + i ) !== morphTargets[ index ] ) { + + geometry.setAttribute( 'morphTarget' + i, morphTargets[ index ] ); + + } + + if ( morphNormals && geometry.getAttribute( 'morphNormal' + i ) !== morphNormals[ index ] ) { + + geometry.setAttribute( 'morphNormal' + i, morphNormals[ index ] ); + + } + + morphInfluences[ i ] = value; + morphInfluencesSum += value; + + } else { + + if ( morphTargets && geometry.hasAttribute( 'morphTarget' + i ) === true ) { + + geometry.deleteAttribute( 'morphTarget' + i ); + + } + + if ( morphNormals && geometry.hasAttribute( 'morphNormal' + i ) === true ) { + + geometry.deleteAttribute( 'morphNormal' + i ); + + } + + morphInfluences[ i ] = 0; + + } + + } + + // GLSL shader uses formula baseinfluence * base + sum(target * influence) + // This allows us to switch between absolute morphs and relative morphs without changing shader code + // When baseinfluence = 1 - sum(influence), the above is equivalent to sum((target - base) * influence) + const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum; + + program.getUniforms().setValue( gl, 'morphTargetBaseInfluence', morphBaseInfluence ); + program.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences ); + + } + + } + + return { + + update: update + + }; + +} + +function WebGLObjects( gl, geometries, attributes, info ) { + + let updateMap = new WeakMap(); + + function update( object ) { + + const frame = info.render.frame; + + const geometry = object.geometry; + const buffergeometry = geometries.get( object, geometry ); + + // Update once per frame + + if ( updateMap.get( buffergeometry ) !== frame ) { + + geometries.update( buffergeometry ); + + updateMap.set( buffergeometry, frame ); + + } + + if ( object.isInstancedMesh ) { + + if ( object.hasEventListener( 'dispose', onInstancedMeshDispose ) === false ) { + + object.addEventListener( 'dispose', onInstancedMeshDispose ); + + } + + attributes.update( object.instanceMatrix, 34962 ); + + if ( object.instanceColor !== null ) { + + attributes.update( object.instanceColor, 34962 ); + + } + + } + + return buffergeometry; + + } + + function dispose() { + + updateMap = new WeakMap(); + + } + + function onInstancedMeshDispose( event ) { + + const instancedMesh = event.target; + + instancedMesh.removeEventListener( 'dispose', onInstancedMeshDispose ); + + attributes.remove( instancedMesh.instanceMatrix ); + + if ( instancedMesh.instanceColor !== null ) attributes.remove( instancedMesh.instanceColor ); + + } + + return { + + update: update, + dispose: dispose + + }; + +} + +class DataTexture3D extends Texture { + + constructor( data = null, width = 1, height = 1, depth = 1 ) { + + // We're going to add .setXXX() methods for setting properties later. + // Users can still set in DataTexture3D directly. + // + // const texture = new THREE.DataTexture3D( data, width, height, depth ); + // texture.anisotropy = 16; + // + // See #14839 + + super( null ); + + this.image = { data, width, height, depth }; + + this.magFilter = NearestFilter; + this.minFilter = NearestFilter; + + this.wrapR = ClampToEdgeWrapping; + + this.generateMipmaps = false; + this.flipY = false; + this.unpackAlignment = 1; + + this.needsUpdate = true; + + } + +} + +DataTexture3D.prototype.isDataTexture3D = true; + +/** + * Uniforms of a program. + * Those form a tree structure with a special top-level container for the root, + * which you get by calling 'new WebGLUniforms( gl, program )'. + * + * + * Properties of inner nodes including the top-level container: + * + * .seq - array of nested uniforms + * .map - nested uniforms by name + * + * + * Methods of all nodes except the top-level container: + * + * .setValue( gl, value, [textures] ) + * + * uploads a uniform value(s) + * the 'textures' parameter is needed for sampler uniforms + * + * + * Static methods of the top-level container (textures factorizations): + * + * .upload( gl, seq, values, textures ) + * + * sets uniforms in 'seq' to 'values[id].value' + * + * .seqWithValue( seq, values ) : filteredSeq + * + * filters 'seq' entries with corresponding entry in values + * + * + * Methods of the top-level container (textures factorizations): + * + * .setValue( gl, name, value, textures ) + * + * sets uniform with name 'name' to 'value' + * + * .setOptional( gl, obj, prop ) + * + * like .set for an optional property of the object + * + */ + +const emptyTexture = new Texture(); +const emptyTexture2dArray = new DataTexture2DArray(); +const emptyTexture3d = new DataTexture3D(); +const emptyCubeTexture = new CubeTexture(); + +// --- Utilities --- + +// Array Caches (provide typed arrays for temporary by size) + +const arrayCacheF32 = []; +const arrayCacheI32 = []; + +// Float32Array caches used for uploading Matrix uniforms + +const mat4array = new Float32Array( 16 ); +const mat3array = new Float32Array( 9 ); +const mat2array = new Float32Array( 4 ); + +// Flattening for arrays of vectors and matrices + +function flatten( array, nBlocks, blockSize ) { + + const firstElem = array[ 0 ]; + + if ( firstElem <= 0 || firstElem > 0 ) return array; + // unoptimized: ! isNaN( firstElem ) + // see http://jacksondunstan.com/articles/983 + + const n = nBlocks * blockSize; + let r = arrayCacheF32[ n ]; + + if ( r === undefined ) { + + r = new Float32Array( n ); + arrayCacheF32[ n ] = r; + + } + + if ( nBlocks !== 0 ) { + + firstElem.toArray( r, 0 ); + + for ( let i = 1, offset = 0; i !== nBlocks; ++ i ) { + + offset += blockSize; + array[ i ].toArray( r, offset ); + + } + + } + + return r; + +} + +function arraysEqual( a, b ) { + + if ( a.length !== b.length ) return false; + + for ( let i = 0, l = a.length; i < l; i ++ ) { + + if ( a[ i ] !== b[ i ] ) return false; + + } + + return true; + +} + +function copyArray( a, b ) { + + for ( let i = 0, l = b.length; i < l; i ++ ) { + + a[ i ] = b[ i ]; + + } + +} + +// Texture unit allocation + +function allocTexUnits( textures, n ) { + + let r = arrayCacheI32[ n ]; + + if ( r === undefined ) { + + r = new Int32Array( n ); + arrayCacheI32[ n ] = r; + + } + + for ( let i = 0; i !== n; ++ i ) { + + r[ i ] = textures.allocateTextureUnit(); + + } + + return r; + +} + +// --- Setters --- + +// Note: Defining these methods externally, because they come in a bunch +// and this way their names minify. + +// Single scalar + +function setValueV1f( gl, v ) { + + const cache = this.cache; + + if ( cache[ 0 ] === v ) return; + + gl.uniform1f( this.addr, v ); + + cache[ 0 ] = v; + +} + +// Single float vector (from flat array or THREE.VectorN) + +function setValueV2f( gl, v ) { + + const cache = this.cache; + + if ( v.x !== undefined ) { + + if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y ) { + + gl.uniform2f( this.addr, v.x, v.y ); + + cache[ 0 ] = v.x; + cache[ 1 ] = v.y; + + } + + } else { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform2fv( this.addr, v ); + + copyArray( cache, v ); + + } + +} + +function setValueV3f( gl, v ) { + + const cache = this.cache; + + if ( v.x !== undefined ) { + + if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z ) { + + gl.uniform3f( this.addr, v.x, v.y, v.z ); + + cache[ 0 ] = v.x; + cache[ 1 ] = v.y; + cache[ 2 ] = v.z; + + } + + } else if ( v.r !== undefined ) { + + if ( cache[ 0 ] !== v.r || cache[ 1 ] !== v.g || cache[ 2 ] !== v.b ) { + + gl.uniform3f( this.addr, v.r, v.g, v.b ); + + cache[ 0 ] = v.r; + cache[ 1 ] = v.g; + cache[ 2 ] = v.b; + + } + + } else { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform3fv( this.addr, v ); + + copyArray( cache, v ); + + } + +} + +function setValueV4f( gl, v ) { + + const cache = this.cache; + + if ( v.x !== undefined ) { + + if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z || cache[ 3 ] !== v.w ) { + + gl.uniform4f( this.addr, v.x, v.y, v.z, v.w ); + + cache[ 0 ] = v.x; + cache[ 1 ] = v.y; + cache[ 2 ] = v.z; + cache[ 3 ] = v.w; + + } + + } else { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform4fv( this.addr, v ); + + copyArray( cache, v ); + + } + +} + +// Single matrix (from flat array or THREE.MatrixN) + +function setValueM2( gl, v ) { + + const cache = this.cache; + const elements = v.elements; + + if ( elements === undefined ) { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniformMatrix2fv( this.addr, false, v ); + + copyArray( cache, v ); + + } else { + + if ( arraysEqual( cache, elements ) ) return; + + mat2array.set( elements ); + + gl.uniformMatrix2fv( this.addr, false, mat2array ); + + copyArray( cache, elements ); + + } + +} + +function setValueM3( gl, v ) { + + const cache = this.cache; + const elements = v.elements; + + if ( elements === undefined ) { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniformMatrix3fv( this.addr, false, v ); + + copyArray( cache, v ); + + } else { + + if ( arraysEqual( cache, elements ) ) return; + + mat3array.set( elements ); + + gl.uniformMatrix3fv( this.addr, false, mat3array ); + + copyArray( cache, elements ); + + } + +} + +function setValueM4( gl, v ) { + + const cache = this.cache; + const elements = v.elements; + + if ( elements === undefined ) { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniformMatrix4fv( this.addr, false, v ); + + copyArray( cache, v ); + + } else { + + if ( arraysEqual( cache, elements ) ) return; + + mat4array.set( elements ); + + gl.uniformMatrix4fv( this.addr, false, mat4array ); + + copyArray( cache, elements ); + + } + +} + +// Single integer / boolean + +function setValueV1i( gl, v ) { + + const cache = this.cache; + + if ( cache[ 0 ] === v ) return; + + gl.uniform1i( this.addr, v ); + + cache[ 0 ] = v; + +} + +// Single integer / boolean vector (from flat array) + +function setValueV2i( gl, v ) { + + const cache = this.cache; + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform2iv( this.addr, v ); + + copyArray( cache, v ); + +} + +function setValueV3i( gl, v ) { + + const cache = this.cache; + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform3iv( this.addr, v ); + + copyArray( cache, v ); + +} + +function setValueV4i( gl, v ) { + + const cache = this.cache; + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform4iv( this.addr, v ); + + copyArray( cache, v ); + +} + +// Single unsigned integer + +function setValueV1ui( gl, v ) { + + const cache = this.cache; + + if ( cache[ 0 ] === v ) return; + + gl.uniform1ui( this.addr, v ); + + cache[ 0 ] = v; + +} + +// Single unsigned integer vector (from flat array) + +function setValueV2ui( gl, v ) { + + const cache = this.cache; + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform2uiv( this.addr, v ); + + copyArray( cache, v ); + +} + +function setValueV3ui( gl, v ) { + + const cache = this.cache; + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform3uiv( this.addr, v ); + + copyArray( cache, v ); + +} + +function setValueV4ui( gl, v ) { + + const cache = this.cache; + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform4uiv( this.addr, v ); + + copyArray( cache, v ); + +} + + +// Single texture (2D / Cube) + +function setValueT1( gl, v, textures ) { + + const cache = this.cache; + const unit = textures.allocateTextureUnit(); + + if ( cache[ 0 ] !== unit ) { + + gl.uniform1i( this.addr, unit ); + cache[ 0 ] = unit; + + } + + textures.safeSetTexture2D( v || emptyTexture, unit ); + +} + +function setValueT3D1( gl, v, textures ) { + + const cache = this.cache; + const unit = textures.allocateTextureUnit(); + + if ( cache[ 0 ] !== unit ) { + + gl.uniform1i( this.addr, unit ); + cache[ 0 ] = unit; + + } + + textures.setTexture3D( v || emptyTexture3d, unit ); + +} + +function setValueT6( gl, v, textures ) { + + const cache = this.cache; + const unit = textures.allocateTextureUnit(); + + if ( cache[ 0 ] !== unit ) { + + gl.uniform1i( this.addr, unit ); + cache[ 0 ] = unit; + + } + + textures.safeSetTextureCube( v || emptyCubeTexture, unit ); + +} + +function setValueT2DArray1( gl, v, textures ) { + + const cache = this.cache; + const unit = textures.allocateTextureUnit(); + + if ( cache[ 0 ] !== unit ) { + + gl.uniform1i( this.addr, unit ); + cache[ 0 ] = unit; + + } + + textures.setTexture2DArray( v || emptyTexture2dArray, unit ); + +} + +// Helper to pick the right setter for the singular case + +function getSingularSetter( type ) { + + switch ( type ) { + + case 0x1406: return setValueV1f; // FLOAT + case 0x8b50: return setValueV2f; // _VEC2 + case 0x8b51: return setValueV3f; // _VEC3 + case 0x8b52: return setValueV4f; // _VEC4 + + case 0x8b5a: return setValueM2; // _MAT2 + case 0x8b5b: return setValueM3; // _MAT3 + case 0x8b5c: return setValueM4; // _MAT4 + + case 0x1404: case 0x8b56: return setValueV1i; // INT, BOOL + case 0x8b53: case 0x8b57: return setValueV2i; // _VEC2 + case 0x8b54: case 0x8b58: return setValueV3i; // _VEC3 + case 0x8b55: case 0x8b59: return setValueV4i; // _VEC4 + + case 0x1405: return setValueV1ui; // UINT + case 0x8dc6: return setValueV2ui; // _VEC2 + case 0x8dc7: return setValueV3ui; // _VEC3 + case 0x8dc8: return setValueV4ui; // _VEC4 + + case 0x8b5e: // SAMPLER_2D + case 0x8d66: // SAMPLER_EXTERNAL_OES + case 0x8dca: // INT_SAMPLER_2D + case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D + case 0x8b62: // SAMPLER_2D_SHADOW + return setValueT1; + + case 0x8b5f: // SAMPLER_3D + case 0x8dcb: // INT_SAMPLER_3D + case 0x8dd3: // UNSIGNED_INT_SAMPLER_3D + return setValueT3D1; + + case 0x8b60: // SAMPLER_CUBE + case 0x8dcc: // INT_SAMPLER_CUBE + case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE + case 0x8dc5: // SAMPLER_CUBE_SHADOW + return setValueT6; + + case 0x8dc1: // SAMPLER_2D_ARRAY + case 0x8dcf: // INT_SAMPLER_2D_ARRAY + case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY + case 0x8dc4: // SAMPLER_2D_ARRAY_SHADOW + return setValueT2DArray1; + + } + +} + + +// Array of scalars + +function setValueV1fArray( gl, v ) { + + gl.uniform1fv( this.addr, v ); + +} + +// Array of vectors (from flat array or array of THREE.VectorN) + +function setValueV2fArray( gl, v ) { + + const data = flatten( v, this.size, 2 ); + + gl.uniform2fv( this.addr, data ); + +} + +function setValueV3fArray( gl, v ) { + + const data = flatten( v, this.size, 3 ); + + gl.uniform3fv( this.addr, data ); + +} + +function setValueV4fArray( gl, v ) { + + const data = flatten( v, this.size, 4 ); + + gl.uniform4fv( this.addr, data ); + +} + +// Array of matrices (from flat array or array of THREE.MatrixN) + +function setValueM2Array( gl, v ) { + + const data = flatten( v, this.size, 4 ); + + gl.uniformMatrix2fv( this.addr, false, data ); + +} + +function setValueM3Array( gl, v ) { + + const data = flatten( v, this.size, 9 ); + + gl.uniformMatrix3fv( this.addr, false, data ); + +} + +function setValueM4Array( gl, v ) { + + const data = flatten( v, this.size, 16 ); + + gl.uniformMatrix4fv( this.addr, false, data ); + +} + +// Array of integer / boolean + +function setValueV1iArray( gl, v ) { + + gl.uniform1iv( this.addr, v ); + +} + +// Array of integer / boolean vectors (from flat array) + +function setValueV2iArray( gl, v ) { + + gl.uniform2iv( this.addr, v ); + +} + +function setValueV3iArray( gl, v ) { + + gl.uniform3iv( this.addr, v ); + +} + +function setValueV4iArray( gl, v ) { + + gl.uniform4iv( this.addr, v ); + +} + +// Array of unsigned integer + +function setValueV1uiArray( gl, v ) { + + gl.uniform1uiv( this.addr, v ); + +} + +// Array of unsigned integer vectors (from flat array) + +function setValueV2uiArray( gl, v ) { + + gl.uniform2uiv( this.addr, v ); + +} + +function setValueV3uiArray( gl, v ) { + + gl.uniform3uiv( this.addr, v ); + +} + +function setValueV4uiArray( gl, v ) { + + gl.uniform4uiv( this.addr, v ); + +} + + +// Array of textures (2D / Cube) + +function setValueT1Array( gl, v, textures ) { + + const n = v.length; + + const units = allocTexUnits( textures, n ); + + gl.uniform1iv( this.addr, units ); + + for ( let i = 0; i !== n; ++ i ) { + + textures.safeSetTexture2D( v[ i ] || emptyTexture, units[ i ] ); + + } + +} + +function setValueT6Array( gl, v, textures ) { + + const n = v.length; + + const units = allocTexUnits( textures, n ); + + gl.uniform1iv( this.addr, units ); + + for ( let i = 0; i !== n; ++ i ) { + + textures.safeSetTextureCube( v[ i ] || emptyCubeTexture, units[ i ] ); + + } + +} + +// Helper to pick the right setter for a pure (bottom-level) array + +function getPureArraySetter( type ) { + + switch ( type ) { + + case 0x1406: return setValueV1fArray; // FLOAT + case 0x8b50: return setValueV2fArray; // _VEC2 + case 0x8b51: return setValueV3fArray; // _VEC3 + case 0x8b52: return setValueV4fArray; // _VEC4 + + case 0x8b5a: return setValueM2Array; // _MAT2 + case 0x8b5b: return setValueM3Array; // _MAT3 + case 0x8b5c: return setValueM4Array; // _MAT4 + + case 0x1404: case 0x8b56: return setValueV1iArray; // INT, BOOL + case 0x8b53: case 0x8b57: return setValueV2iArray; // _VEC2 + case 0x8b54: case 0x8b58: return setValueV3iArray; // _VEC3 + case 0x8b55: case 0x8b59: return setValueV4iArray; // _VEC4 + + case 0x1405: return setValueV1uiArray; // UINT + case 0x8dc6: return setValueV2uiArray; // _VEC2 + case 0x8dc7: return setValueV3uiArray; // _VEC3 + case 0x8dc8: return setValueV4uiArray; // _VEC4 + + case 0x8b5e: // SAMPLER_2D + case 0x8d66: // SAMPLER_EXTERNAL_OES + case 0x8dca: // INT_SAMPLER_2D + case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D + case 0x8b62: // SAMPLER_2D_SHADOW + return setValueT1Array; + + case 0x8b60: // SAMPLER_CUBE + case 0x8dcc: // INT_SAMPLER_CUBE + case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE + case 0x8dc5: // SAMPLER_CUBE_SHADOW + return setValueT6Array; + + } + +} + +// --- Uniform Classes --- + +function SingleUniform( id, activeInfo, addr ) { + + this.id = id; + this.addr = addr; + this.cache = []; + this.setValue = getSingularSetter( activeInfo.type ); + + // this.path = activeInfo.name; // DEBUG + +} + +function PureArrayUniform( id, activeInfo, addr ) { + + this.id = id; + this.addr = addr; + this.cache = []; + this.size = activeInfo.size; + this.setValue = getPureArraySetter( activeInfo.type ); + + // this.path = activeInfo.name; // DEBUG + +} + +PureArrayUniform.prototype.updateCache = function ( data ) { + + const cache = this.cache; + + if ( data instanceof Float32Array && cache.length !== data.length ) { + + this.cache = new Float32Array( data.length ); + + } + + copyArray( cache, data ); + +}; + +function StructuredUniform( id ) { + + this.id = id; + + this.seq = []; + this.map = {}; + +} + +StructuredUniform.prototype.setValue = function ( gl, value, textures ) { + + const seq = this.seq; + + for ( let i = 0, n = seq.length; i !== n; ++ i ) { + + const u = seq[ i ]; + u.setValue( gl, value[ u.id ], textures ); + + } + +}; + +// --- Top-level --- + +// Parser - builds up the property tree from the path strings + +const RePathPart = /(\w+)(\])?(\[|\.)?/g; + +// extracts +// - the identifier (member name or array index) +// - followed by an optional right bracket (found when array index) +// - followed by an optional left bracket or dot (type of subscript) +// +// Note: These portions can be read in a non-overlapping fashion and +// allow straightforward parsing of the hierarchy that WebGL encodes +// in the uniform names. + +function addUniform( container, uniformObject ) { + + container.seq.push( uniformObject ); + container.map[ uniformObject.id ] = uniformObject; + +} + +function parseUniform( activeInfo, addr, container ) { + + const path = activeInfo.name, + pathLength = path.length; + + // reset RegExp object, because of the early exit of a previous run + RePathPart.lastIndex = 0; + + while ( true ) { + + const match = RePathPart.exec( path ), + matchEnd = RePathPart.lastIndex; + + let id = match[ 1 ]; + const idIsIndex = match[ 2 ] === ']', + subscript = match[ 3 ]; + + if ( idIsIndex ) id = id | 0; // convert to integer + + if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) { + + // bare name or "pure" bottom-level array "[0]" suffix + + addUniform( container, subscript === undefined ? + new SingleUniform( id, activeInfo, addr ) : + new PureArrayUniform( id, activeInfo, addr ) ); + + break; + + } else { + + // step into inner node / create it in case it doesn't exist + + const map = container.map; + let next = map[ id ]; + + if ( next === undefined ) { + + next = new StructuredUniform( id ); + addUniform( container, next ); + + } + + container = next; + + } + + } + +} + +// Root Container + +function WebGLUniforms( gl, program ) { + + this.seq = []; + this.map = {}; + + const n = gl.getProgramParameter( program, 35718 ); + + for ( let i = 0; i < n; ++ i ) { + + const info = gl.getActiveUniform( program, i ), + addr = gl.getUniformLocation( program, info.name ); + + parseUniform( info, addr, this ); + + } + +} + +WebGLUniforms.prototype.setValue = function ( gl, name, value, textures ) { + + const u = this.map[ name ]; + + if ( u !== undefined ) u.setValue( gl, value, textures ); + +}; + +WebGLUniforms.prototype.setOptional = function ( gl, object, name ) { + + const v = object[ name ]; + + if ( v !== undefined ) this.setValue( gl, name, v ); + +}; + + +// Static interface + +WebGLUniforms.upload = function ( gl, seq, values, textures ) { + + for ( let i = 0, n = seq.length; i !== n; ++ i ) { + + const u = seq[ i ], + v = values[ u.id ]; + + if ( v.needsUpdate !== false ) { + + // note: always updating when .needsUpdate is undefined + u.setValue( gl, v.value, textures ); + + } + + } + +}; + +WebGLUniforms.seqWithValue = function ( seq, values ) { + + const r = []; + + for ( let i = 0, n = seq.length; i !== n; ++ i ) { + + const u = seq[ i ]; + if ( u.id in values ) r.push( u ); + + } + + return r; + +}; + +function WebGLShader( gl, type, string ) { + + const shader = gl.createShader( type ); + + gl.shaderSource( shader, string ); + gl.compileShader( shader ); + + return shader; + +} + +let programIdCount = 0; + +function addLineNumbers( string ) { + + const lines = string.split( '\n' ); + + for ( let i = 0; i < lines.length; i ++ ) { + + lines[ i ] = ( i + 1 ) + ': ' + lines[ i ]; + + } + + return lines.join( '\n' ); + +} + +function getEncodingComponents( encoding ) { + + switch ( encoding ) { + + case LinearEncoding: + return [ 'Linear', '( value )' ]; + case sRGBEncoding: + return [ 'sRGB', '( value )' ]; + case RGBEEncoding: + return [ 'RGBE', '( value )' ]; + case RGBM7Encoding: + return [ 'RGBM', '( value, 7.0 )' ]; + case RGBM16Encoding: + return [ 'RGBM', '( value, 16.0 )' ]; + case RGBDEncoding: + return [ 'RGBD', '( value, 256.0 )' ]; + case GammaEncoding: + return [ 'Gamma', '( value, float( GAMMA_FACTOR ) )' ]; + case LogLuvEncoding: + return [ 'LogLuv', '( value )' ]; + default: + console.warn( 'THREE.WebGLProgram: Unsupported encoding:', encoding ); + return [ 'Linear', '( value )' ]; + + } + +} + +function getShaderErrors( gl, shader, type ) { + + const status = gl.getShaderParameter( shader, 35713 ); + const errors = gl.getShaderInfoLog( shader ).trim(); + + if ( status && errors === '' ) return ''; + + // --enable-privileged-webgl-extension + // console.log( '**' + type + '**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) ); + + return type.toUpperCase() + '\n\n' + errors + '\n\n' + addLineNumbers( gl.getShaderSource( shader ) ); + +} + +function getTexelDecodingFunction( functionName, encoding ) { + + const components = getEncodingComponents( encoding ); + return 'vec4 ' + functionName + '( vec4 value ) { return ' + components[ 0 ] + 'ToLinear' + components[ 1 ] + '; }'; + +} + +function getTexelEncodingFunction( functionName, encoding ) { + + const components = getEncodingComponents( encoding ); + return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }'; + +} + +function getToneMappingFunction( functionName, toneMapping ) { + + let toneMappingName; + + switch ( toneMapping ) { + + case LinearToneMapping: + toneMappingName = 'Linear'; + break; + + case ReinhardToneMapping: + toneMappingName = 'Reinhard'; + break; + + case CineonToneMapping: + toneMappingName = 'OptimizedCineon'; + break; + + case ACESFilmicToneMapping: + toneMappingName = 'ACESFilmic'; + break; + + case CustomToneMapping: + toneMappingName = 'Custom'; + break; + + default: + console.warn( 'THREE.WebGLProgram: Unsupported toneMapping:', toneMapping ); + toneMappingName = 'Linear'; + + } + + return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }'; + +} + +function generateExtensions( parameters ) { + + const chunks = [ + ( parameters.extensionDerivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.tangentSpaceNormalMap || parameters.clearcoatNormalMap || parameters.flatShading || parameters.shaderID === 'physical' ) ? '#extension GL_OES_standard_derivatives : enable' : '', + ( parameters.extensionFragDepth || parameters.logarithmicDepthBuffer ) && parameters.rendererExtensionFragDepth ? '#extension GL_EXT_frag_depth : enable' : '', + ( parameters.extensionDrawBuffers && parameters.rendererExtensionDrawBuffers ) ? '#extension GL_EXT_draw_buffers : require' : '', + ( parameters.extensionShaderTextureLOD || parameters.envMap || parameters.transmission ) && parameters.rendererExtensionShaderTextureLod ? '#extension GL_EXT_shader_texture_lod : enable' : '' + ]; + + return chunks.filter( filterEmptyLine ).join( '\n' ); + +} + +function generateDefines( defines ) { + + const chunks = []; + + for ( const name in defines ) { + + const value = defines[ name ]; + + if ( value === false ) continue; + + chunks.push( '#define ' + name + ' ' + value ); + + } + + return chunks.join( '\n' ); + +} + +function fetchAttributeLocations( gl, program ) { + + const attributes = {}; + + const n = gl.getProgramParameter( program, 35721 ); + + for ( let i = 0; i < n; i ++ ) { + + const info = gl.getActiveAttrib( program, i ); + const name = info.name; + + let locationSize = 1; + if ( info.type === 35674 ) locationSize = 2; + if ( info.type === 35675 ) locationSize = 3; + if ( info.type === 35676 ) locationSize = 4; + + // console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i ); + + attributes[ name ] = { + type: info.type, + location: gl.getAttribLocation( program, name ), + locationSize: locationSize + }; + + } + + return attributes; + +} + +function filterEmptyLine( string ) { + + return string !== ''; + +} + +function replaceLightNums( string, parameters ) { + + return string + .replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights ) + .replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights ) + .replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights ) + .replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights ) + .replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights ) + .replace( /NUM_DIR_LIGHT_SHADOWS/g, parameters.numDirLightShadows ) + .replace( /NUM_SPOT_LIGHT_SHADOWS/g, parameters.numSpotLightShadows ) + .replace( /NUM_POINT_LIGHT_SHADOWS/g, parameters.numPointLightShadows ); + +} + +function replaceClippingPlaneNums( string, parameters ) { + + return string + .replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes ) + .replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) ); + +} + +// Resolve Includes + +const includePattern = /^[ \t]*#include +<([\w\d./]+)>/gm; + +function resolveIncludes( string ) { + + return string.replace( includePattern, includeReplacer ); + +} + +function includeReplacer( match, include ) { + + const string = ShaderChunk[ include ]; + + if ( string === undefined ) { + + throw new Error( 'Can not resolve #include <' + include + '>' ); + + } + + return resolveIncludes( string ); + +} + +// Unroll Loops + +const deprecatedUnrollLoopPattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g; +const unrollLoopPattern = /#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g; + +function unrollLoops( string ) { + + return string + .replace( unrollLoopPattern, loopReplacer ) + .replace( deprecatedUnrollLoopPattern, deprecatedLoopReplacer ); + +} + +function deprecatedLoopReplacer( match, start, end, snippet ) { + + console.warn( 'WebGLProgram: #pragma unroll_loop shader syntax is deprecated. Please use #pragma unroll_loop_start syntax instead.' ); + return loopReplacer( match, start, end, snippet ); + +} + +function loopReplacer( match, start, end, snippet ) { + + let string = ''; + + for ( let i = parseInt( start ); i < parseInt( end ); i ++ ) { + + string += snippet + .replace( /\[\s*i\s*\]/g, '[ ' + i + ' ]' ) + .replace( /UNROLLED_LOOP_INDEX/g, i ); + + } + + return string; + +} + +// + +function generatePrecision( parameters ) { + + let precisionstring = 'precision ' + parameters.precision + ' float;\nprecision ' + parameters.precision + ' int;'; + + if ( parameters.precision === 'highp' ) { + + precisionstring += '\n#define HIGH_PRECISION'; + + } else if ( parameters.precision === 'mediump' ) { + + precisionstring += '\n#define MEDIUM_PRECISION'; + + } else if ( parameters.precision === 'lowp' ) { + + precisionstring += '\n#define LOW_PRECISION'; + + } + + return precisionstring; + +} + +function generateShadowMapTypeDefine( parameters ) { + + let shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC'; + + if ( parameters.shadowMapType === PCFShadowMap ) { + + shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF'; + + } else if ( parameters.shadowMapType === PCFSoftShadowMap ) { + + shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT'; + + } else if ( parameters.shadowMapType === VSMShadowMap ) { + + shadowMapTypeDefine = 'SHADOWMAP_TYPE_VSM'; + + } + + return shadowMapTypeDefine; + +} + +function generateEnvMapTypeDefine( parameters ) { + + let envMapTypeDefine = 'ENVMAP_TYPE_CUBE'; + + if ( parameters.envMap ) { + + switch ( parameters.envMapMode ) { + + case CubeReflectionMapping: + case CubeRefractionMapping: + envMapTypeDefine = 'ENVMAP_TYPE_CUBE'; + break; + + case CubeUVReflectionMapping: + case CubeUVRefractionMapping: + envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV'; + break; + + } + + } + + return envMapTypeDefine; + +} + +function generateEnvMapModeDefine( parameters ) { + + let envMapModeDefine = 'ENVMAP_MODE_REFLECTION'; + + if ( parameters.envMap ) { + + switch ( parameters.envMapMode ) { + + case CubeRefractionMapping: + case CubeUVRefractionMapping: + + envMapModeDefine = 'ENVMAP_MODE_REFRACTION'; + break; + + } + + } + + return envMapModeDefine; + +} + +function generateEnvMapBlendingDefine( parameters ) { + + let envMapBlendingDefine = 'ENVMAP_BLENDING_NONE'; + + if ( parameters.envMap ) { + + switch ( parameters.combine ) { + + case MultiplyOperation: + envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY'; + break; + + case MixOperation: + envMapBlendingDefine = 'ENVMAP_BLENDING_MIX'; + break; + + case AddOperation: + envMapBlendingDefine = 'ENVMAP_BLENDING_ADD'; + break; + + } + + } + + return envMapBlendingDefine; + +} + +function WebGLProgram( renderer, cacheKey, parameters, bindingStates ) { + + // TODO Send this event to Three.js DevTools + // console.log( 'WebGLProgram', cacheKey ); + + const gl = renderer.getContext(); + + const defines = parameters.defines; + + let vertexShader = parameters.vertexShader; + let fragmentShader = parameters.fragmentShader; + + const shadowMapTypeDefine = generateShadowMapTypeDefine( parameters ); + const envMapTypeDefine = generateEnvMapTypeDefine( parameters ); + const envMapModeDefine = generateEnvMapModeDefine( parameters ); + const envMapBlendingDefine = generateEnvMapBlendingDefine( parameters ); + + + const gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0; + + const customExtensions = parameters.isWebGL2 ? '' : generateExtensions( parameters ); + + const customDefines = generateDefines( defines ); + + const program = gl.createProgram(); + + let prefixVertex, prefixFragment; + let versionString = parameters.glslVersion ? '#version ' + parameters.glslVersion + '\n' : ''; + + if ( parameters.isRawShaderMaterial ) { + + prefixVertex = [ + + customDefines + + ].filter( filterEmptyLine ).join( '\n' ); + + if ( prefixVertex.length > 0 ) { + + prefixVertex += '\n'; + + } + + prefixFragment = [ + + customExtensions, + customDefines + + ].filter( filterEmptyLine ).join( '\n' ); + + if ( prefixFragment.length > 0 ) { + + prefixFragment += '\n'; + + } + + } else { + + prefixVertex = [ + + generatePrecision( parameters ), + + '#define SHADER_NAME ' + parameters.shaderName, + + customDefines, + + parameters.instancing ? '#define USE_INSTANCING' : '', + parameters.instancingColor ? '#define USE_INSTANCING_COLOR' : '', + + parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '', + + '#define GAMMA_FACTOR ' + gammaFactorDefine, + + '#define MAX_BONES ' + parameters.maxBones, + ( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '', + ( parameters.useFog && parameters.fogExp2 ) ? '#define FOG_EXP2' : '', + + parameters.map ? '#define USE_MAP' : '', + parameters.envMap ? '#define USE_ENVMAP' : '', + parameters.envMap ? '#define ' + envMapModeDefine : '', + parameters.lightMap ? '#define USE_LIGHTMAP' : '', + parameters.aoMap ? '#define USE_AOMAP' : '', + parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', + parameters.bumpMap ? '#define USE_BUMPMAP' : '', + parameters.normalMap ? '#define USE_NORMALMAP' : '', + ( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '', + ( parameters.normalMap && parameters.tangentSpaceNormalMap ) ? '#define TANGENTSPACE_NORMALMAP' : '', + + parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', + parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', + parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', + + parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '', + + parameters.specularMap ? '#define USE_SPECULARMAP' : '', + parameters.specularIntensityMap ? '#define USE_SPECULARINTENSITYMAP' : '', + parameters.specularColorMap ? '#define USE_SPECULARCOLORMAP' : '', + + parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', + parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', + parameters.alphaMap ? '#define USE_ALPHAMAP' : '', + + parameters.transmission ? '#define USE_TRANSMISSION' : '', + parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', + parameters.thicknessMap ? '#define USE_THICKNESSMAP' : '', + + parameters.sheenColorMap ? '#define USE_SHEENCOLORMAP' : '', + parameters.sheenRoughnessMap ? '#define USE_SHEENROUGHNESSMAP' : '', + + parameters.vertexTangents ? '#define USE_TANGENT' : '', + parameters.vertexColors ? '#define USE_COLOR' : '', + parameters.vertexAlphas ? '#define USE_COLOR_ALPHA' : '', + parameters.vertexUvs ? '#define USE_UV' : '', + parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', + + parameters.flatShading ? '#define FLAT_SHADED' : '', + + parameters.skinning ? '#define USE_SKINNING' : '', + parameters.useVertexTexture ? '#define BONE_TEXTURE' : '', + + parameters.morphTargets ? '#define USE_MORPHTARGETS' : '', + parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '', + ( parameters.morphTargets && parameters.isWebGL2 ) ? '#define MORPHTARGETS_TEXTURE' : '', + ( parameters.morphTargets && parameters.isWebGL2 ) ? '#define MORPHTARGETS_COUNT ' + parameters.morphTargetsCount : '', + parameters.doubleSided ? '#define DOUBLE_SIDED' : '', + parameters.flipSided ? '#define FLIP_SIDED' : '', + + parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', + parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', + + parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '', + + parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', + ( parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ) ? '#define USE_LOGDEPTHBUF_EXT' : '', + + 'uniform mat4 modelMatrix;', + 'uniform mat4 modelViewMatrix;', + 'uniform mat4 projectionMatrix;', + 'uniform mat4 viewMatrix;', + 'uniform mat3 normalMatrix;', + 'uniform vec3 cameraPosition;', + 'uniform bool isOrthographic;', + + '#ifdef USE_INSTANCING', + + ' attribute mat4 instanceMatrix;', + + '#endif', + + '#ifdef USE_INSTANCING_COLOR', + + ' attribute vec3 instanceColor;', + + '#endif', + + 'attribute vec3 position;', + 'attribute vec3 normal;', + 'attribute vec2 uv;', + + '#ifdef USE_TANGENT', + + ' attribute vec4 tangent;', + + '#endif', + + '#if defined( USE_COLOR_ALPHA )', + + ' attribute vec4 color;', + + '#elif defined( USE_COLOR )', + + ' attribute vec3 color;', + + '#endif', + + '#if ( defined( USE_MORPHTARGETS ) && ! defined( MORPHTARGETS_TEXTURE ) )', + + ' attribute vec3 morphTarget0;', + ' attribute vec3 morphTarget1;', + ' attribute vec3 morphTarget2;', + ' attribute vec3 morphTarget3;', + + ' #ifdef USE_MORPHNORMALS', + + ' attribute vec3 morphNormal0;', + ' attribute vec3 morphNormal1;', + ' attribute vec3 morphNormal2;', + ' attribute vec3 morphNormal3;', + + ' #else', + + ' attribute vec3 morphTarget4;', + ' attribute vec3 morphTarget5;', + ' attribute vec3 morphTarget6;', + ' attribute vec3 morphTarget7;', + + ' #endif', + + '#endif', + + '#ifdef USE_SKINNING', + + ' attribute vec4 skinIndex;', + ' attribute vec4 skinWeight;', + + '#endif', + + '\n' + + ].filter( filterEmptyLine ).join( '\n' ); + + prefixFragment = [ + + customExtensions, + + generatePrecision( parameters ), + + '#define SHADER_NAME ' + parameters.shaderName, + + customDefines, + + '#define GAMMA_FACTOR ' + gammaFactorDefine, + + ( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '', + ( parameters.useFog && parameters.fogExp2 ) ? '#define FOG_EXP2' : '', + + parameters.map ? '#define USE_MAP' : '', + parameters.matcap ? '#define USE_MATCAP' : '', + parameters.envMap ? '#define USE_ENVMAP' : '', + parameters.envMap ? '#define ' + envMapTypeDefine : '', + parameters.envMap ? '#define ' + envMapModeDefine : '', + parameters.envMap ? '#define ' + envMapBlendingDefine : '', + parameters.lightMap ? '#define USE_LIGHTMAP' : '', + parameters.aoMap ? '#define USE_AOMAP' : '', + parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', + parameters.bumpMap ? '#define USE_BUMPMAP' : '', + parameters.normalMap ? '#define USE_NORMALMAP' : '', + ( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '', + ( parameters.normalMap && parameters.tangentSpaceNormalMap ) ? '#define TANGENTSPACE_NORMALMAP' : '', + + parameters.clearcoat ? '#define USE_CLEARCOAT' : '', + parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', + parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', + parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', + + parameters.specularMap ? '#define USE_SPECULARMAP' : '', + parameters.specularIntensityMap ? '#define USE_SPECULARINTENSITYMAP' : '', + parameters.specularColorMap ? '#define USE_SPECULARCOLORMAP' : '', + parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', + parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', + + parameters.alphaMap ? '#define USE_ALPHAMAP' : '', + parameters.alphaTest ? '#define USE_ALPHATEST' : '', + + parameters.sheen ? '#define USE_SHEEN' : '', + parameters.sheenColorMap ? '#define USE_SHEENCOLORMAP' : '', + parameters.sheenRoughnessMap ? '#define USE_SHEENROUGHNESSMAP' : '', + + parameters.transmission ? '#define USE_TRANSMISSION' : '', + parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', + parameters.thicknessMap ? '#define USE_THICKNESSMAP' : '', + + parameters.vertexTangents ? '#define USE_TANGENT' : '', + parameters.vertexColors || parameters.instancingColor ? '#define USE_COLOR' : '', + parameters.vertexAlphas ? '#define USE_COLOR_ALPHA' : '', + parameters.vertexUvs ? '#define USE_UV' : '', + parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', + + parameters.gradientMap ? '#define USE_GRADIENTMAP' : '', + + parameters.flatShading ? '#define FLAT_SHADED' : '', + + parameters.doubleSided ? '#define DOUBLE_SIDED' : '', + parameters.flipSided ? '#define FLIP_SIDED' : '', + + parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', + parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', + + parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '', + + parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '', + + parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', + ( parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ) ? '#define USE_LOGDEPTHBUF_EXT' : '', + + ( ( parameters.extensionShaderTextureLOD || parameters.envMap ) && parameters.rendererExtensionShaderTextureLod ) ? '#define TEXTURE_LOD_EXT' : '', + + 'uniform mat4 viewMatrix;', + 'uniform vec3 cameraPosition;', + 'uniform bool isOrthographic;', + + ( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '', + ( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below + ( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '', + + parameters.dithering ? '#define DITHERING' : '', + parameters.format === RGBFormat ? '#define OPAQUE' : '', + + ShaderChunk[ 'encodings_pars_fragment' ], // this code is required here because it is used by the various encoding/decoding function defined below + parameters.map ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '', + parameters.matcap ? getTexelDecodingFunction( 'matcapTexelToLinear', parameters.matcapEncoding ) : '', + parameters.envMap ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '', + parameters.emissiveMap ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '', + parameters.specularColorMap ? getTexelDecodingFunction( 'specularColorMapTexelToLinear', parameters.specularColorMapEncoding ) : '', + parameters.sheenColorMap ? getTexelDecodingFunction( 'sheenColorMapTexelToLinear', parameters.sheenColorMapEncoding ) : '', + parameters.lightMap ? getTexelDecodingFunction( 'lightMapTexelToLinear', parameters.lightMapEncoding ) : '', + getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ), + + parameters.depthPacking ? '#define DEPTH_PACKING ' + parameters.depthPacking : '', + + '\n' + + ].filter( filterEmptyLine ).join( '\n' ); + + } + + vertexShader = resolveIncludes( vertexShader ); + vertexShader = replaceLightNums( vertexShader, parameters ); + vertexShader = replaceClippingPlaneNums( vertexShader, parameters ); + + fragmentShader = resolveIncludes( fragmentShader ); + fragmentShader = replaceLightNums( fragmentShader, parameters ); + fragmentShader = replaceClippingPlaneNums( fragmentShader, parameters ); + + vertexShader = unrollLoops( vertexShader ); + fragmentShader = unrollLoops( fragmentShader ); + + if ( parameters.isWebGL2 && parameters.isRawShaderMaterial !== true ) { + + // GLSL 3.0 conversion for built-in materials and ShaderMaterial + + versionString = '#version 300 es\n'; + + prefixVertex = [ + 'precision mediump sampler2DArray;', + '#define attribute in', + '#define varying out', + '#define texture2D texture' + ].join( '\n' ) + '\n' + prefixVertex; + + prefixFragment = [ + '#define varying in', + ( parameters.glslVersion === GLSL3 ) ? '' : 'out highp vec4 pc_fragColor;', + ( parameters.glslVersion === GLSL3 ) ? '' : '#define gl_FragColor pc_fragColor', + '#define gl_FragDepthEXT gl_FragDepth', + '#define texture2D texture', + '#define textureCube texture', + '#define texture2DProj textureProj', + '#define texture2DLodEXT textureLod', + '#define texture2DProjLodEXT textureProjLod', + '#define textureCubeLodEXT textureLod', + '#define texture2DGradEXT textureGrad', + '#define texture2DProjGradEXT textureProjGrad', + '#define textureCubeGradEXT textureGrad' + ].join( '\n' ) + '\n' + prefixFragment; + + } + + const vertexGlsl = versionString + prefixVertex + vertexShader; + const fragmentGlsl = versionString + prefixFragment + fragmentShader; + + // console.log( '*VERTEX*', vertexGlsl ); + // console.log( '*FRAGMENT*', fragmentGlsl ); + + const glVertexShader = WebGLShader( gl, 35633, vertexGlsl ); + const glFragmentShader = WebGLShader( gl, 35632, fragmentGlsl ); + + gl.attachShader( program, glVertexShader ); + gl.attachShader( program, glFragmentShader ); + + // Force a particular attribute to index 0. + + if ( parameters.index0AttributeName !== undefined ) { + + gl.bindAttribLocation( program, 0, parameters.index0AttributeName ); + + } else if ( parameters.morphTargets === true ) { + + // programs with morphTargets displace position out of attribute 0 + gl.bindAttribLocation( program, 0, 'position' ); + + } + + gl.linkProgram( program ); + + // check for link errors + if ( renderer.debug.checkShaderErrors ) { + + const programLog = gl.getProgramInfoLog( program ).trim(); + const vertexLog = gl.getShaderInfoLog( glVertexShader ).trim(); + const fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim(); + + let runnable = true; + let haveDiagnostics = true; + + if ( gl.getProgramParameter( program, 35714 ) === false ) { + + runnable = false; + + const vertexErrors = getShaderErrors( gl, glVertexShader, 'vertex' ); + const fragmentErrors = getShaderErrors( gl, glFragmentShader, 'fragment' ); + + console.error( + 'THREE.WebGLProgram: Shader Error ' + gl.getError() + ' - ' + + 'VALIDATE_STATUS ' + gl.getProgramParameter( program, 35715 ) + '\n\n' + + 'Program Info Log: ' + programLog + '\n' + + vertexErrors + '\n' + + fragmentErrors + ); + + } else if ( programLog !== '' ) { + + console.warn( 'THREE.WebGLProgram: Program Info Log:', programLog ); + + } else if ( vertexLog === '' || fragmentLog === '' ) { + + haveDiagnostics = false; + + } + + if ( haveDiagnostics ) { + + this.diagnostics = { + + runnable: runnable, + + programLog: programLog, + + vertexShader: { + + log: vertexLog, + prefix: prefixVertex + + }, + + fragmentShader: { + + log: fragmentLog, + prefix: prefixFragment + + } + + }; + + } + + } + + // Clean up + + // Crashes in iOS9 and iOS10. #18402 + // gl.detachShader( program, glVertexShader ); + // gl.detachShader( program, glFragmentShader ); + + gl.deleteShader( glVertexShader ); + gl.deleteShader( glFragmentShader ); + + // set up caching for uniform locations + + let cachedUniforms; + + this.getUniforms = function () { + + if ( cachedUniforms === undefined ) { + + cachedUniforms = new WebGLUniforms( gl, program ); + + } + + return cachedUniforms; + + }; + + // set up caching for attribute locations + + let cachedAttributes; + + this.getAttributes = function () { + + if ( cachedAttributes === undefined ) { + + cachedAttributes = fetchAttributeLocations( gl, program ); + + } + + return cachedAttributes; + + }; + + // free resource + + this.destroy = function () { + + bindingStates.releaseStatesOfProgram( this ); + + gl.deleteProgram( program ); + this.program = undefined; + + }; + + // + + this.name = parameters.shaderName; + this.id = programIdCount ++; + this.cacheKey = cacheKey; + this.usedTimes = 1; + this.program = program; + this.vertexShader = glVertexShader; + this.fragmentShader = glFragmentShader; + + return this; + +} + +function WebGLPrograms( renderer, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping ) { + + const programs = []; + + const isWebGL2 = capabilities.isWebGL2; + const logarithmicDepthBuffer = capabilities.logarithmicDepthBuffer; + const floatVertexTextures = capabilities.floatVertexTextures; + const maxVertexUniforms = capabilities.maxVertexUniforms; + const vertexTextures = capabilities.vertexTextures; + + let precision = capabilities.precision; + + const shaderIDs = { + MeshDepthMaterial: 'depth', + MeshDistanceMaterial: 'distanceRGBA', + MeshNormalMaterial: 'normal', + MeshBasicMaterial: 'basic', + MeshLambertMaterial: 'lambert', + MeshPhongMaterial: 'phong', + MeshToonMaterial: 'toon', + MeshStandardMaterial: 'physical', + MeshPhysicalMaterial: 'physical', + MeshMatcapMaterial: 'matcap', + LineBasicMaterial: 'basic', + LineDashedMaterial: 'dashed', + PointsMaterial: 'points', + ShadowMaterial: 'shadow', + SpriteMaterial: 'sprite' + }; + + const parameterNames = [ + 'precision', 'isWebGL2', 'supportsVertexTextures', 'outputEncoding', 'instancing', 'instancingColor', + 'map', 'mapEncoding', 'matcap', 'matcapEncoding', 'envMap', 'envMapMode', 'envMapEncoding', 'envMapCubeUV', + 'lightMap', 'lightMapEncoding', 'aoMap', 'emissiveMap', 'emissiveMapEncoding', 'bumpMap', 'normalMap', + 'objectSpaceNormalMap', 'tangentSpaceNormalMap', + 'clearcoat', 'clearcoatMap', 'clearcoatRoughnessMap', 'clearcoatNormalMap', + 'displacementMap', 'specularMap', , 'roughnessMap', 'metalnessMap', 'gradientMap', + 'alphaMap', 'alphaTest', 'combine', 'vertexColors', 'vertexAlphas', 'vertexTangents', 'vertexUvs', 'uvsVertexOnly', 'fog', 'useFog', 'fogExp2', + 'flatShading', 'sizeAttenuation', 'logarithmicDepthBuffer', 'skinning', + 'maxBones', 'useVertexTexture', 'morphTargets', 'morphNormals', 'morphTargetsCount', 'premultipliedAlpha', + 'numDirLights', 'numPointLights', 'numSpotLights', 'numHemiLights', 'numRectAreaLights', + 'numDirLightShadows', 'numPointLightShadows', 'numSpotLightShadows', + 'shadowMapEnabled', 'shadowMapType', 'toneMapping', 'physicallyCorrectLights', + 'doubleSided', 'flipSided', 'numClippingPlanes', 'numClipIntersection', 'depthPacking', 'dithering', 'format', + 'specularIntensityMap', 'specularColorMap', 'specularColorMapEncoding', + 'transmission', 'transmissionMap', 'thicknessMap', + 'sheen', 'sheenColorMap', 'sheenColorMapEncoding', 'sheenRoughnessMap' + ]; + + function getMaxBones( object ) { + + const skeleton = object.skeleton; + const bones = skeleton.bones; + + if ( floatVertexTextures ) { + + return 1024; + + } else { + + // default for when object is not specified + // ( for example when prebuilding shader to be used with multiple objects ) + // + // - leave some extra space for other uniforms + // - limit here is ANGLE's 254 max uniform vectors + // (up to 54 should be safe) + + const nVertexUniforms = maxVertexUniforms; + const nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 ); + + const maxBones = Math.min( nVertexMatrices, bones.length ); + + if ( maxBones < bones.length ) { + + console.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' ); + return 0; + + } + + return maxBones; + + } + + } + + function getTextureEncodingFromMap( map ) { + + let encoding; + + if ( map && map.isTexture ) { + + encoding = map.encoding; + + } else if ( map && map.isWebGLRenderTarget ) { + + console.warn( 'THREE.WebGLPrograms.getTextureEncodingFromMap: don\'t use render targets as textures. Use their .texture property instead.' ); + encoding = map.texture.encoding; + + } else { + + encoding = LinearEncoding; + + } + + if ( isWebGL2 && map && map.isTexture && map.format === RGBAFormat && map.type === UnsignedByteType && map.encoding === sRGBEncoding ) { + + encoding = LinearEncoding; // disable inline decode for sRGB textures in WebGL 2 + + } + + return encoding; + + } + + function getParameters( material, lights, shadows, scene, object ) { + + const fog = scene.fog; + const environment = material.isMeshStandardMaterial ? scene.environment : null; + + const envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || environment ); + + const shaderID = shaderIDs[ material.type ]; + + // heuristics to create shader parameters according to lights in the scene + // (not to blow over maxLights budget) + + const maxBones = object.isSkinnedMesh ? getMaxBones( object ) : 0; + + if ( material.precision !== null ) { + + precision = capabilities.getMaxPrecision( material.precision ); + + if ( precision !== material.precision ) { + + console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' ); + + } + + } + + let vertexShader, fragmentShader; + + if ( shaderID ) { + + const shader = ShaderLib[ shaderID ]; + + vertexShader = shader.vertexShader; + fragmentShader = shader.fragmentShader; + + } else { + + vertexShader = material.vertexShader; + fragmentShader = material.fragmentShader; + + } + + const currentRenderTarget = renderer.getRenderTarget(); + + const useAlphaTest = material.alphaTest > 0; + const useClearcoat = material.clearcoat > 0; + + const parameters = { + + isWebGL2: isWebGL2, + + shaderID: shaderID, + shaderName: material.type, + + vertexShader: vertexShader, + fragmentShader: fragmentShader, + defines: material.defines, + + isRawShaderMaterial: material.isRawShaderMaterial === true, + glslVersion: material.glslVersion, + + precision: precision, + + instancing: object.isInstancedMesh === true, + instancingColor: object.isInstancedMesh === true && object.instanceColor !== null, + + supportsVertexTextures: vertexTextures, + outputEncoding: ( currentRenderTarget !== null ) ? getTextureEncodingFromMap( currentRenderTarget.texture ) : renderer.outputEncoding, + map: !! material.map, + mapEncoding: getTextureEncodingFromMap( material.map ), + matcap: !! material.matcap, + matcapEncoding: getTextureEncodingFromMap( material.matcap ), + envMap: !! envMap, + envMapMode: envMap && envMap.mapping, + envMapEncoding: getTextureEncodingFromMap( envMap ), + envMapCubeUV: ( !! envMap ) && ( ( envMap.mapping === CubeUVReflectionMapping ) || ( envMap.mapping === CubeUVRefractionMapping ) ), + lightMap: !! material.lightMap, + lightMapEncoding: getTextureEncodingFromMap( material.lightMap ), + aoMap: !! material.aoMap, + emissiveMap: !! material.emissiveMap, + emissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap ), + bumpMap: !! material.bumpMap, + normalMap: !! material.normalMap, + objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap, + tangentSpaceNormalMap: material.normalMapType === TangentSpaceNormalMap, + + clearcoat: useClearcoat, + clearcoatMap: useClearcoat && !! material.clearcoatMap, + clearcoatRoughnessMap: useClearcoat && !! material.clearcoatRoughnessMap, + clearcoatNormalMap: useClearcoat && !! material.clearcoatNormalMap, + + displacementMap: !! material.displacementMap, + roughnessMap: !! material.roughnessMap, + metalnessMap: !! material.metalnessMap, + specularMap: !! material.specularMap, + specularIntensityMap: !! material.specularIntensityMap, + specularColorMap: !! material.specularColorMap, + specularColorMapEncoding: getTextureEncodingFromMap( material.specularColorMap ), + + alphaMap: !! material.alphaMap, + alphaTest: useAlphaTest, + + gradientMap: !! material.gradientMap, + + sheen: material.sheen > 0, + sheenColorMap: !! material.sheenColorMap, + sheenColorMapEncoding: getTextureEncodingFromMap( material.sheenColorMap ), + sheenRoughnessMap: !! material.sheenRoughnessMap, + + transmission: material.transmission > 0, + transmissionMap: !! material.transmissionMap, + thicknessMap: !! material.thicknessMap, + + combine: material.combine, + + vertexTangents: ( !! material.normalMap && !! object.geometry && !! object.geometry.attributes.tangent ), + vertexColors: material.vertexColors, + vertexAlphas: material.vertexColors === true && !! object.geometry && !! object.geometry.attributes.color && object.geometry.attributes.color.itemSize === 4, + vertexUvs: !! material.map || !! material.bumpMap || !! material.normalMap || !! material.specularMap || !! material.alphaMap || !! material.emissiveMap || !! material.roughnessMap || !! material.metalnessMap || !! material.clearcoatMap || !! material.clearcoatRoughnessMap || !! material.clearcoatNormalMap || !! material.displacementMap || !! material.transmissionMap || !! material.thicknessMap || !! material.specularIntensityMap || !! material.specularColorMap || !! material.sheenColorMap || material.sheenRoughnessMap, + uvsVertexOnly: ! ( !! material.map || !! material.bumpMap || !! material.normalMap || !! material.specularMap || !! material.alphaMap || !! material.emissiveMap || !! material.roughnessMap || !! material.metalnessMap || !! material.clearcoatNormalMap || material.transmission > 0 || !! material.transmissionMap || !! material.thicknessMap || !! material.specularIntensityMap || !! material.specularColorMap || !! material.sheen > 0 || !! material.sheenColorMap || !! material.sheenRoughnessMap ) && !! material.displacementMap, + + fog: !! fog, + useFog: material.fog, + fogExp2: ( fog && fog.isFogExp2 ), + + flatShading: !! material.flatShading, + + sizeAttenuation: material.sizeAttenuation, + logarithmicDepthBuffer: logarithmicDepthBuffer, + + skinning: object.isSkinnedMesh === true && maxBones > 0, + maxBones: maxBones, + useVertexTexture: floatVertexTextures, + + morphTargets: !! object.geometry && !! object.geometry.morphAttributes.position, + morphNormals: !! object.geometry && !! object.geometry.morphAttributes.normal, + morphTargetsCount: ( !! object.geometry && !! object.geometry.morphAttributes.position ) ? object.geometry.morphAttributes.position.length : 0, + + numDirLights: lights.directional.length, + numPointLights: lights.point.length, + numSpotLights: lights.spot.length, + numRectAreaLights: lights.rectArea.length, + numHemiLights: lights.hemi.length, + + numDirLightShadows: lights.directionalShadowMap.length, + numPointLightShadows: lights.pointShadowMap.length, + numSpotLightShadows: lights.spotShadowMap.length, + + numClippingPlanes: clipping.numPlanes, + numClipIntersection: clipping.numIntersection, + + format: material.format, + dithering: material.dithering, + + shadowMapEnabled: renderer.shadowMap.enabled && shadows.length > 0, + shadowMapType: renderer.shadowMap.type, + + toneMapping: material.toneMapped ? renderer.toneMapping : NoToneMapping, + physicallyCorrectLights: renderer.physicallyCorrectLights, + + premultipliedAlpha: material.premultipliedAlpha, + + doubleSided: material.side === DoubleSide, + flipSided: material.side === BackSide, + + depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false, + + index0AttributeName: material.index0AttributeName, + + extensionDerivatives: material.extensions && material.extensions.derivatives, + extensionFragDepth: material.extensions && material.extensions.fragDepth, + extensionDrawBuffers: material.extensions && material.extensions.drawBuffers, + extensionShaderTextureLOD: material.extensions && material.extensions.shaderTextureLOD, + + rendererExtensionFragDepth: isWebGL2 || extensions.has( 'EXT_frag_depth' ), + rendererExtensionDrawBuffers: isWebGL2 || extensions.has( 'WEBGL_draw_buffers' ), + rendererExtensionShaderTextureLod: isWebGL2 || extensions.has( 'EXT_shader_texture_lod' ), + + customProgramCacheKey: material.customProgramCacheKey() + + }; + + return parameters; + + } + + function getProgramCacheKey( parameters ) { + + const array = []; + + if ( parameters.shaderID ) { + + array.push( parameters.shaderID ); + + } else { + + array.push( hashString( parameters.fragmentShader ) ); + array.push( hashString( parameters.vertexShader ) ); + + } + + if ( parameters.defines !== undefined ) { + + for ( const name in parameters.defines ) { + + array.push( name ); + array.push( parameters.defines[ name ] ); + + } + + } + + if ( parameters.isRawShaderMaterial === false ) { + + for ( let i = 0; i < parameterNames.length; i ++ ) { + + array.push( parameters[ parameterNames[ i ] ] ); + + } + + array.push( renderer.outputEncoding ); + array.push( renderer.gammaFactor ); + + } + + array.push( parameters.customProgramCacheKey ); + + return array.join(); + + } + + function getUniforms( material ) { + + const shaderID = shaderIDs[ material.type ]; + let uniforms; + + if ( shaderID ) { + + const shader = ShaderLib[ shaderID ]; + uniforms = UniformsUtils.clone( shader.uniforms ); + + } else { + + uniforms = material.uniforms; + + } + + return uniforms; + + } + + function acquireProgram( parameters, cacheKey ) { + + let program; + + // Check if code has been already compiled + for ( let p = 0, pl = programs.length; p < pl; p ++ ) { + + const preexistingProgram = programs[ p ]; + + if ( preexistingProgram.cacheKey === cacheKey ) { + + program = preexistingProgram; + ++ program.usedTimes; + + break; + + } + + } + + if ( program === undefined ) { + + program = new WebGLProgram( renderer, cacheKey, parameters, bindingStates ); + programs.push( program ); + + } + + return program; + + } + + function releaseProgram( program ) { + + if ( -- program.usedTimes === 0 ) { + + // Remove from unordered set + const i = programs.indexOf( program ); + programs[ i ] = programs[ programs.length - 1 ]; + programs.pop(); + + // Free WebGL resources + program.destroy(); + + } + + } + + return { + getParameters: getParameters, + getProgramCacheKey: getProgramCacheKey, + getUniforms: getUniforms, + acquireProgram: acquireProgram, + releaseProgram: releaseProgram, + // Exposed for resource monitoring & error feedback via renderer.info: + programs: programs + }; + +} + +function WebGLProperties() { + + let properties = new WeakMap(); + + function get( object ) { + + let map = properties.get( object ); + + if ( map === undefined ) { + + map = {}; + properties.set( object, map ); + + } + + return map; + + } + + function remove( object ) { + + properties.delete( object ); + + } + + function update( object, key, value ) { + + properties.get( object )[ key ] = value; + + } + + function dispose() { + + properties = new WeakMap(); + + } + + return { + get: get, + remove: remove, + update: update, + dispose: dispose + }; + +} + +function painterSortStable( a, b ) { + + if ( a.groupOrder !== b.groupOrder ) { + + return a.groupOrder - b.groupOrder; + + } else if ( a.renderOrder !== b.renderOrder ) { + + return a.renderOrder - b.renderOrder; + + } else if ( a.program !== b.program ) { + + return a.program.id - b.program.id; + + } else if ( a.material.id !== b.material.id ) { + + return a.material.id - b.material.id; + + } else if ( a.z !== b.z ) { + + return a.z - b.z; + + } else { + + return a.id - b.id; + + } + +} + +function reversePainterSortStable( a, b ) { + + if ( a.groupOrder !== b.groupOrder ) { + + return a.groupOrder - b.groupOrder; + + } else if ( a.renderOrder !== b.renderOrder ) { + + return a.renderOrder - b.renderOrder; + + } else if ( a.z !== b.z ) { + + return b.z - a.z; + + } else { + + return a.id - b.id; + + } + +} + + +function WebGLRenderList( properties ) { + + const renderItems = []; + let renderItemsIndex = 0; + + const opaque = []; + const transmissive = []; + const transparent = []; + + const defaultProgram = { id: - 1 }; + + function init() { + + renderItemsIndex = 0; + + opaque.length = 0; + transmissive.length = 0; + transparent.length = 0; + + } + + function getNextRenderItem( object, geometry, material, groupOrder, z, group ) { + + let renderItem = renderItems[ renderItemsIndex ]; + const materialProperties = properties.get( material ); + + if ( renderItem === undefined ) { + + renderItem = { + id: object.id, + object: object, + geometry: geometry, + material: material, + program: materialProperties.program || defaultProgram, + groupOrder: groupOrder, + renderOrder: object.renderOrder, + z: z, + group: group + }; + + renderItems[ renderItemsIndex ] = renderItem; + + } else { + + renderItem.id = object.id; + renderItem.object = object; + renderItem.geometry = geometry; + renderItem.material = material; + renderItem.program = materialProperties.program || defaultProgram; + renderItem.groupOrder = groupOrder; + renderItem.renderOrder = object.renderOrder; + renderItem.z = z; + renderItem.group = group; + + } + + renderItemsIndex ++; + + return renderItem; + + } + + function push( object, geometry, material, groupOrder, z, group ) { + + const renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group ); + + if ( material.transmission > 0.0 ) { + + transmissive.push( renderItem ); + + } else if ( material.transparent === true ) { + + transparent.push( renderItem ); + + } else { + + opaque.push( renderItem ); + + } + + } + + function unshift( object, geometry, material, groupOrder, z, group ) { + + const renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group ); + + if ( material.transmission > 0.0 ) { + + transmissive.unshift( renderItem ); + + } else if ( material.transparent === true ) { + + transparent.unshift( renderItem ); + + } else { + + opaque.unshift( renderItem ); + + } + + } + + function sort( customOpaqueSort, customTransparentSort ) { + + if ( opaque.length > 1 ) opaque.sort( customOpaqueSort || painterSortStable ); + if ( transmissive.length > 1 ) transmissive.sort( customTransparentSort || reversePainterSortStable ); + if ( transparent.length > 1 ) transparent.sort( customTransparentSort || reversePainterSortStable ); + + } + + function finish() { + + // Clear references from inactive renderItems in the list + + for ( let i = renderItemsIndex, il = renderItems.length; i < il; i ++ ) { + + const renderItem = renderItems[ i ]; + + if ( renderItem.id === null ) break; + + renderItem.id = null; + renderItem.object = null; + renderItem.geometry = null; + renderItem.material = null; + renderItem.program = null; + renderItem.group = null; + + } + + } + + return { + + opaque: opaque, + transmissive: transmissive, + transparent: transparent, + + init: init, + push: push, + unshift: unshift, + finish: finish, + + sort: sort + }; + +} + +function WebGLRenderLists( properties ) { + + let lists = new WeakMap(); + + function get( scene, renderCallDepth ) { + + let list; + + if ( lists.has( scene ) === false ) { + + list = new WebGLRenderList( properties ); + lists.set( scene, [ list ] ); + + } else { + + if ( renderCallDepth >= lists.get( scene ).length ) { + + list = new WebGLRenderList( properties ); + lists.get( scene ).push( list ); + + } else { + + list = lists.get( scene )[ renderCallDepth ]; + + } + + } + + return list; + + } + + function dispose() { + + lists = new WeakMap(); + + } + + return { + get: get, + dispose: dispose + }; + +} + +function UniformsCache() { + + const lights = {}; + + return { + + get: function ( light ) { + + if ( lights[ light.id ] !== undefined ) { + + return lights[ light.id ]; + + } + + let uniforms; + + switch ( light.type ) { + + case 'DirectionalLight': + uniforms = { + direction: new Vector3(), + color: new Color() + }; + break; + + case 'SpotLight': + uniforms = { + position: new Vector3(), + direction: new Vector3(), + color: new Color(), + distance: 0, + coneCos: 0, + penumbraCos: 0, + decay: 0 + }; + break; + + case 'PointLight': + uniforms = { + position: new Vector3(), + color: new Color(), + distance: 0, + decay: 0 + }; + break; + + case 'HemisphereLight': + uniforms = { + direction: new Vector3(), + skyColor: new Color(), + groundColor: new Color() + }; + break; + + case 'RectAreaLight': + uniforms = { + color: new Color(), + position: new Vector3(), + halfWidth: new Vector3(), + halfHeight: new Vector3() + }; + break; + + } + + lights[ light.id ] = uniforms; + + return uniforms; + + } + + }; + +} + +function ShadowUniformsCache() { + + const lights = {}; + + return { + + get: function ( light ) { + + if ( lights[ light.id ] !== undefined ) { + + return lights[ light.id ]; + + } + + let uniforms; + + switch ( light.type ) { + + case 'DirectionalLight': + uniforms = { + shadowBias: 0, + shadowNormalBias: 0, + shadowRadius: 1, + shadowMapSize: new Vector2() + }; + break; + + case 'SpotLight': + uniforms = { + shadowBias: 0, + shadowNormalBias: 0, + shadowRadius: 1, + shadowMapSize: new Vector2() + }; + break; + + case 'PointLight': + uniforms = { + shadowBias: 0, + shadowNormalBias: 0, + shadowRadius: 1, + shadowMapSize: new Vector2(), + shadowCameraNear: 1, + shadowCameraFar: 1000 + }; + break; + + // TODO (abelnation): set RectAreaLight shadow uniforms + + } + + lights[ light.id ] = uniforms; + + return uniforms; + + } + + }; + +} + + + +let nextVersion = 0; + +function shadowCastingLightsFirst( lightA, lightB ) { + + return ( lightB.castShadow ? 1 : 0 ) - ( lightA.castShadow ? 1 : 0 ); + +} + +function WebGLLights( extensions, capabilities ) { + + const cache = new UniformsCache(); + + const shadowCache = ShadowUniformsCache(); + + const state = { + + version: 0, + + hash: { + directionalLength: - 1, + pointLength: - 1, + spotLength: - 1, + rectAreaLength: - 1, + hemiLength: - 1, + + numDirectionalShadows: - 1, + numPointShadows: - 1, + numSpotShadows: - 1 + }, + + ambient: [ 0, 0, 0 ], + probe: [], + directional: [], + directionalShadow: [], + directionalShadowMap: [], + directionalShadowMatrix: [], + spot: [], + spotShadow: [], + spotShadowMap: [], + spotShadowMatrix: [], + rectArea: [], + rectAreaLTC1: null, + rectAreaLTC2: null, + point: [], + pointShadow: [], + pointShadowMap: [], + pointShadowMatrix: [], + hemi: [] + + }; + + for ( let i = 0; i < 9; i ++ ) state.probe.push( new Vector3() ); + + const vector3 = new Vector3(); + const matrix4 = new Matrix4(); + const matrix42 = new Matrix4(); + + function setup( lights, physicallyCorrectLights ) { + + let r = 0, g = 0, b = 0; + + for ( let i = 0; i < 9; i ++ ) state.probe[ i ].set( 0, 0, 0 ); + + let directionalLength = 0; + let pointLength = 0; + let spotLength = 0; + let rectAreaLength = 0; + let hemiLength = 0; + + let numDirectionalShadows = 0; + let numPointShadows = 0; + let numSpotShadows = 0; + + lights.sort( shadowCastingLightsFirst ); + + // artist-friendly light intensity scaling factor + const scaleFactor = ( physicallyCorrectLights !== true ) ? Math.PI : 1; + + for ( let i = 0, l = lights.length; i < l; i ++ ) { + + const light = lights[ i ]; + + const color = light.color; + const intensity = light.intensity; + const distance = light.distance; + + const shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null; + + if ( light.isAmbientLight ) { + + r += color.r * intensity * scaleFactor; + g += color.g * intensity * scaleFactor; + b += color.b * intensity * scaleFactor; + + } else if ( light.isLightProbe ) { + + for ( let j = 0; j < 9; j ++ ) { + + state.probe[ j ].addScaledVector( light.sh.coefficients[ j ], intensity ); + + } + + } else if ( light.isDirectionalLight ) { + + const uniforms = cache.get( light ); + + uniforms.color.copy( light.color ).multiplyScalar( light.intensity * scaleFactor ); + + if ( light.castShadow ) { + + const shadow = light.shadow; + + const shadowUniforms = shadowCache.get( light ); + + shadowUniforms.shadowBias = shadow.bias; + shadowUniforms.shadowNormalBias = shadow.normalBias; + shadowUniforms.shadowRadius = shadow.radius; + shadowUniforms.shadowMapSize = shadow.mapSize; + + state.directionalShadow[ directionalLength ] = shadowUniforms; + state.directionalShadowMap[ directionalLength ] = shadowMap; + state.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix; + + numDirectionalShadows ++; + + } + + state.directional[ directionalLength ] = uniforms; + + directionalLength ++; + + } else if ( light.isSpotLight ) { + + const uniforms = cache.get( light ); + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + + uniforms.color.copy( color ).multiplyScalar( intensity * scaleFactor ); + uniforms.distance = distance; + + uniforms.coneCos = Math.cos( light.angle ); + uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) ); + uniforms.decay = light.decay; + + if ( light.castShadow ) { + + const shadow = light.shadow; + + const shadowUniforms = shadowCache.get( light ); + + shadowUniforms.shadowBias = shadow.bias; + shadowUniforms.shadowNormalBias = shadow.normalBias; + shadowUniforms.shadowRadius = shadow.radius; + shadowUniforms.shadowMapSize = shadow.mapSize; + + state.spotShadow[ spotLength ] = shadowUniforms; + state.spotShadowMap[ spotLength ] = shadowMap; + state.spotShadowMatrix[ spotLength ] = light.shadow.matrix; + + numSpotShadows ++; + + } + + state.spot[ spotLength ] = uniforms; + + spotLength ++; + + } else if ( light.isRectAreaLight ) { + + const uniforms = cache.get( light ); + + // (a) intensity is the total visible light emitted + //uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) ); + + // (b) intensity is the brightness of the light + uniforms.color.copy( color ).multiplyScalar( intensity ); + + uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 ); + uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 ); + + state.rectArea[ rectAreaLength ] = uniforms; + + rectAreaLength ++; + + } else if ( light.isPointLight ) { + + const uniforms = cache.get( light ); + + uniforms.color.copy( light.color ).multiplyScalar( light.intensity * scaleFactor ); + uniforms.distance = light.distance; + uniforms.decay = light.decay; + + if ( light.castShadow ) { + + const shadow = light.shadow; + + const shadowUniforms = shadowCache.get( light ); + + shadowUniforms.shadowBias = shadow.bias; + shadowUniforms.shadowNormalBias = shadow.normalBias; + shadowUniforms.shadowRadius = shadow.radius; + shadowUniforms.shadowMapSize = shadow.mapSize; + shadowUniforms.shadowCameraNear = shadow.camera.near; + shadowUniforms.shadowCameraFar = shadow.camera.far; + + state.pointShadow[ pointLength ] = shadowUniforms; + state.pointShadowMap[ pointLength ] = shadowMap; + state.pointShadowMatrix[ pointLength ] = light.shadow.matrix; + + numPointShadows ++; + + } + + state.point[ pointLength ] = uniforms; + + pointLength ++; + + } else if ( light.isHemisphereLight ) { + + const uniforms = cache.get( light ); + + uniforms.skyColor.copy( light.color ).multiplyScalar( intensity * scaleFactor ); + uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity * scaleFactor ); + + state.hemi[ hemiLength ] = uniforms; + + hemiLength ++; + + } + + } + + if ( rectAreaLength > 0 ) { + + if ( capabilities.isWebGL2 ) { + + // WebGL 2 + + state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1; + state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2; + + } else { + + // WebGL 1 + + if ( extensions.has( 'OES_texture_float_linear' ) === true ) { + + state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1; + state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2; + + } else if ( extensions.has( 'OES_texture_half_float_linear' ) === true ) { + + state.rectAreaLTC1 = UniformsLib.LTC_HALF_1; + state.rectAreaLTC2 = UniformsLib.LTC_HALF_2; + + } else { + + console.error( 'THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.' ); + + } + + } + + } + + state.ambient[ 0 ] = r; + state.ambient[ 1 ] = g; + state.ambient[ 2 ] = b; + + const hash = state.hash; + + if ( hash.directionalLength !== directionalLength || + hash.pointLength !== pointLength || + hash.spotLength !== spotLength || + hash.rectAreaLength !== rectAreaLength || + hash.hemiLength !== hemiLength || + hash.numDirectionalShadows !== numDirectionalShadows || + hash.numPointShadows !== numPointShadows || + hash.numSpotShadows !== numSpotShadows ) { + + state.directional.length = directionalLength; + state.spot.length = spotLength; + state.rectArea.length = rectAreaLength; + state.point.length = pointLength; + state.hemi.length = hemiLength; + + state.directionalShadow.length = numDirectionalShadows; + state.directionalShadowMap.length = numDirectionalShadows; + state.pointShadow.length = numPointShadows; + state.pointShadowMap.length = numPointShadows; + state.spotShadow.length = numSpotShadows; + state.spotShadowMap.length = numSpotShadows; + state.directionalShadowMatrix.length = numDirectionalShadows; + state.pointShadowMatrix.length = numPointShadows; + state.spotShadowMatrix.length = numSpotShadows; + + hash.directionalLength = directionalLength; + hash.pointLength = pointLength; + hash.spotLength = spotLength; + hash.rectAreaLength = rectAreaLength; + hash.hemiLength = hemiLength; + + hash.numDirectionalShadows = numDirectionalShadows; + hash.numPointShadows = numPointShadows; + hash.numSpotShadows = numSpotShadows; + + state.version = nextVersion ++; + + } + + } + + function setupView( lights, camera ) { + + let directionalLength = 0; + let pointLength = 0; + let spotLength = 0; + let rectAreaLength = 0; + let hemiLength = 0; + + const viewMatrix = camera.matrixWorldInverse; + + for ( let i = 0, l = lights.length; i < l; i ++ ) { + + const light = lights[ i ]; + + if ( light.isDirectionalLight ) { + + const uniforms = state.directional[ directionalLength ]; + + uniforms.direction.setFromMatrixPosition( light.matrixWorld ); + vector3.setFromMatrixPosition( light.target.matrixWorld ); + uniforms.direction.sub( vector3 ); + uniforms.direction.transformDirection( viewMatrix ); + + directionalLength ++; + + } else if ( light.isSpotLight ) { + + const uniforms = state.spot[ spotLength ]; + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + uniforms.position.applyMatrix4( viewMatrix ); + + uniforms.direction.setFromMatrixPosition( light.matrixWorld ); + vector3.setFromMatrixPosition( light.target.matrixWorld ); + uniforms.direction.sub( vector3 ); + uniforms.direction.transformDirection( viewMatrix ); + + spotLength ++; + + } else if ( light.isRectAreaLight ) { + + const uniforms = state.rectArea[ rectAreaLength ]; + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + uniforms.position.applyMatrix4( viewMatrix ); + + // extract local rotation of light to derive width/height half vectors + matrix42.identity(); + matrix4.copy( light.matrixWorld ); + matrix4.premultiply( viewMatrix ); + matrix42.extractRotation( matrix4 ); + + uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 ); + uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 ); + + uniforms.halfWidth.applyMatrix4( matrix42 ); + uniforms.halfHeight.applyMatrix4( matrix42 ); + + rectAreaLength ++; + + } else if ( light.isPointLight ) { + + const uniforms = state.point[ pointLength ]; + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + uniforms.position.applyMatrix4( viewMatrix ); + + pointLength ++; + + } else if ( light.isHemisphereLight ) { + + const uniforms = state.hemi[ hemiLength ]; + + uniforms.direction.setFromMatrixPosition( light.matrixWorld ); + uniforms.direction.transformDirection( viewMatrix ); + uniforms.direction.normalize(); + + hemiLength ++; + + } + + } + + } + + return { + setup: setup, + setupView: setupView, + state: state + }; + +} + +function WebGLRenderState( extensions, capabilities ) { + + const lights = new WebGLLights( extensions, capabilities ); + + const lightsArray = []; + const shadowsArray = []; + + function init() { + + lightsArray.length = 0; + shadowsArray.length = 0; + + } + + function pushLight( light ) { + + lightsArray.push( light ); + + } + + function pushShadow( shadowLight ) { + + shadowsArray.push( shadowLight ); + + } + + function setupLights( physicallyCorrectLights ) { + + lights.setup( lightsArray, physicallyCorrectLights ); + + } + + function setupLightsView( camera ) { + + lights.setupView( lightsArray, camera ); + + } + + const state = { + lightsArray: lightsArray, + shadowsArray: shadowsArray, + + lights: lights + }; + + return { + init: init, + state: state, + setupLights: setupLights, + setupLightsView: setupLightsView, + + pushLight: pushLight, + pushShadow: pushShadow + }; + +} + +function WebGLRenderStates( extensions, capabilities ) { + + let renderStates = new WeakMap(); + + function get( scene, renderCallDepth = 0 ) { + + let renderState; + + if ( renderStates.has( scene ) === false ) { + + renderState = new WebGLRenderState( extensions, capabilities ); + renderStates.set( scene, [ renderState ] ); + + } else { + + if ( renderCallDepth >= renderStates.get( scene ).length ) { + + renderState = new WebGLRenderState( extensions, capabilities ); + renderStates.get( scene ).push( renderState ); + + } else { + + renderState = renderStates.get( scene )[ renderCallDepth ]; + + } + + } + + return renderState; + + } + + function dispose() { + + renderStates = new WeakMap(); + + } + + return { + get: get, + dispose: dispose + }; + +} + +/** + * parameters = { + * + * opacity: , + * + * map: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * wireframe: , + * wireframeLinewidth: + * } + */ + +class MeshDepthMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'MeshDepthMaterial'; + + this.depthPacking = BasicDepthPacking; + + this.map = null; + + this.alphaMap = null; + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.wireframe = false; + this.wireframeLinewidth = 1; + + this.fog = false; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.depthPacking = source.depthPacking; + + this.map = source.map; + + this.alphaMap = source.alphaMap; + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + + return this; + + } + +} + +MeshDepthMaterial.prototype.isMeshDepthMaterial = true; + +/** + * parameters = { + * + * referencePosition: , + * nearDistance: , + * farDistance: , + * + * map: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: + * + * } + */ + +class MeshDistanceMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'MeshDistanceMaterial'; + + this.referencePosition = new Vector3(); + this.nearDistance = 1; + this.farDistance = 1000; + + this.map = null; + + this.alphaMap = null; + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.fog = false; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.referencePosition.copy( source.referencePosition ); + this.nearDistance = source.nearDistance; + this.farDistance = source.farDistance; + + this.map = source.map; + + this.alphaMap = source.alphaMap; + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + return this; + + } + +} + +MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true; + +const vertex = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}"; + +const fragment = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include \nvoid main() {\n\tconst float samples = float( VSM_SAMPLES );\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}"; + +function WebGLShadowMap( _renderer, _objects, _capabilities ) { + + let _frustum = new Frustum(); + + const _shadowMapSize = new Vector2(), + _viewportSize = new Vector2(), + + _viewport = new Vector4(), + + _depthMaterial = new MeshDepthMaterial( { depthPacking: RGBADepthPacking } ), + _distanceMaterial = new MeshDistanceMaterial(), + + _materialCache = {}, + + _maxTextureSize = _capabilities.maxTextureSize; + + const shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide }; + + const shadowMaterialVertical = new ShaderMaterial( { + defines: { + VSM_SAMPLES: 8 + }, + uniforms: { + shadow_pass: { value: null }, + resolution: { value: new Vector2() }, + radius: { value: 4.0 } + }, + + vertexShader: vertex, + fragmentShader: fragment + + } ); + + const shadowMaterialHorizontal = shadowMaterialVertical.clone(); + shadowMaterialHorizontal.defines.HORIZONTAL_PASS = 1; + + const fullScreenTri = new BufferGeometry(); + fullScreenTri.setAttribute( + 'position', + new BufferAttribute( + new Float32Array( [ - 1, - 1, 0.5, 3, - 1, 0.5, - 1, 3, 0.5 ] ), + 3 + ) + ); + + const fullScreenMesh = new Mesh( fullScreenTri, shadowMaterialVertical ); + + const scope = this; + + this.enabled = false; + + this.autoUpdate = true; + this.needsUpdate = false; + + this.type = PCFShadowMap; + + this.render = function ( lights, scene, camera ) { + + if ( scope.enabled === false ) return; + if ( scope.autoUpdate === false && scope.needsUpdate === false ) return; + + if ( lights.length === 0 ) return; + + const currentRenderTarget = _renderer.getRenderTarget(); + const activeCubeFace = _renderer.getActiveCubeFace(); + const activeMipmapLevel = _renderer.getActiveMipmapLevel(); + + const _state = _renderer.state; + + // Set GL state for depth map. + _state.setBlending( NoBlending ); + _state.buffers.color.setClear( 1, 1, 1, 1 ); + _state.buffers.depth.setTest( true ); + _state.setScissorTest( false ); + + // render depth map + + for ( let i = 0, il = lights.length; i < il; i ++ ) { + + const light = lights[ i ]; + const shadow = light.shadow; + + if ( shadow === undefined ) { + + console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' ); + continue; + + } + + if ( shadow.autoUpdate === false && shadow.needsUpdate === false ) continue; + + _shadowMapSize.copy( shadow.mapSize ); + + const shadowFrameExtents = shadow.getFrameExtents(); + + _shadowMapSize.multiply( shadowFrameExtents ); + + _viewportSize.copy( shadow.mapSize ); + + if ( _shadowMapSize.x > _maxTextureSize || _shadowMapSize.y > _maxTextureSize ) { + + if ( _shadowMapSize.x > _maxTextureSize ) { + + _viewportSize.x = Math.floor( _maxTextureSize / shadowFrameExtents.x ); + _shadowMapSize.x = _viewportSize.x * shadowFrameExtents.x; + shadow.mapSize.x = _viewportSize.x; + + } + + if ( _shadowMapSize.y > _maxTextureSize ) { + + _viewportSize.y = Math.floor( _maxTextureSize / shadowFrameExtents.y ); + _shadowMapSize.y = _viewportSize.y * shadowFrameExtents.y; + shadow.mapSize.y = _viewportSize.y; + + } + + } + + if ( shadow.map === null && ! shadow.isPointLightShadow && this.type === VSMShadowMap ) { + + const pars = { minFilter: LinearFilter, magFilter: LinearFilter, format: RGBAFormat }; + + shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars ); + shadow.map.texture.name = light.name + '.shadowMap'; + + shadow.mapPass = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars ); + + shadow.camera.updateProjectionMatrix(); + + } + + if ( shadow.map === null ) { + + const pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat }; + + shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars ); + shadow.map.texture.name = light.name + '.shadowMap'; + + shadow.camera.updateProjectionMatrix(); + + } + + _renderer.setRenderTarget( shadow.map ); + _renderer.clear(); + + const viewportCount = shadow.getViewportCount(); + + for ( let vp = 0; vp < viewportCount; vp ++ ) { + + const viewport = shadow.getViewport( vp ); + + _viewport.set( + _viewportSize.x * viewport.x, + _viewportSize.y * viewport.y, + _viewportSize.x * viewport.z, + _viewportSize.y * viewport.w + ); + + _state.viewport( _viewport ); + + shadow.updateMatrices( light, vp ); + + _frustum = shadow.getFrustum(); + + renderObject( scene, camera, shadow.camera, light, this.type ); + + } + + // do blur pass for VSM + + if ( ! shadow.isPointLightShadow && this.type === VSMShadowMap ) { + + VSMPass( shadow, camera ); + + } + + shadow.needsUpdate = false; + + } + + scope.needsUpdate = false; + + _renderer.setRenderTarget( currentRenderTarget, activeCubeFace, activeMipmapLevel ); + + }; + + function VSMPass( shadow, camera ) { + + const geometry = _objects.update( fullScreenMesh ); + + if ( shadowMaterialVertical.defines.VSM_SAMPLES !== shadow.blurSamples ) { + + shadowMaterialVertical.defines.VSM_SAMPLES = shadow.blurSamples; + shadowMaterialHorizontal.defines.VSM_SAMPLES = shadow.blurSamples; + + shadowMaterialVertical.needsUpdate = true; + shadowMaterialHorizontal.needsUpdate = true; + + } + + // vertical pass + + shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture; + shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize; + shadowMaterialVertical.uniforms.radius.value = shadow.radius; + _renderer.setRenderTarget( shadow.mapPass ); + _renderer.clear(); + _renderer.renderBufferDirect( camera, null, geometry, shadowMaterialVertical, fullScreenMesh, null ); + + // horizontal pass + + shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture; + shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize; + shadowMaterialHorizontal.uniforms.radius.value = shadow.radius; + _renderer.setRenderTarget( shadow.map ); + _renderer.clear(); + _renderer.renderBufferDirect( camera, null, geometry, shadowMaterialHorizontal, fullScreenMesh, null ); + + } + + function getDepthMaterial( object, geometry, material, light, shadowCameraNear, shadowCameraFar, type ) { + + let result = null; + + const customMaterial = ( light.isPointLight === true ) ? object.customDistanceMaterial : object.customDepthMaterial; + + if ( customMaterial !== undefined ) { + + result = customMaterial; + + } else { + + result = ( light.isPointLight === true ) ? _distanceMaterial : _depthMaterial; + + } + + if ( ( _renderer.localClippingEnabled && material.clipShadows === true && material.clippingPlanes.length !== 0 ) || + ( material.displacementMap && material.displacementScale !== 0 ) || + ( material.alphaMap && material.alphaTest > 0 ) ) { + + // in this case we need a unique material instance reflecting the + // appropriate state + + const keyA = result.uuid, keyB = material.uuid; + + let materialsForVariant = _materialCache[ keyA ]; + + if ( materialsForVariant === undefined ) { + + materialsForVariant = {}; + _materialCache[ keyA ] = materialsForVariant; + + } + + let cachedMaterial = materialsForVariant[ keyB ]; + + if ( cachedMaterial === undefined ) { + + cachedMaterial = result.clone(); + materialsForVariant[ keyB ] = cachedMaterial; + + } + + result = cachedMaterial; + + } + + result.visible = material.visible; + result.wireframe = material.wireframe; + + if ( type === VSMShadowMap ) { + + result.side = ( material.shadowSide !== null ) ? material.shadowSide : material.side; + + } else { + + result.side = ( material.shadowSide !== null ) ? material.shadowSide : shadowSide[ material.side ]; + + } + + result.alphaMap = material.alphaMap; + result.alphaTest = material.alphaTest; + + result.clipShadows = material.clipShadows; + result.clippingPlanes = material.clippingPlanes; + result.clipIntersection = material.clipIntersection; + + result.displacementMap = material.displacementMap; + result.displacementScale = material.displacementScale; + result.displacementBias = material.displacementBias; + + result.wireframeLinewidth = material.wireframeLinewidth; + result.linewidth = material.linewidth; + + if ( light.isPointLight === true && result.isMeshDistanceMaterial === true ) { + + result.referencePosition.setFromMatrixPosition( light.matrixWorld ); + result.nearDistance = shadowCameraNear; + result.farDistance = shadowCameraFar; + + } + + return result; + + } + + function renderObject( object, camera, shadowCamera, light, type ) { + + if ( object.visible === false ) return; + + const visible = object.layers.test( camera.layers ); + + if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) { + + if ( ( object.castShadow || ( object.receiveShadow && type === VSMShadowMap ) ) && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) { + + object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld ); + + const geometry = _objects.update( object ); + const material = object.material; + + if ( Array.isArray( material ) ) { + + const groups = geometry.groups; + + for ( let k = 0, kl = groups.length; k < kl; k ++ ) { + + const group = groups[ k ]; + const groupMaterial = material[ group.materialIndex ]; + + if ( groupMaterial && groupMaterial.visible ) { + + const depthMaterial = getDepthMaterial( object, geometry, groupMaterial, light, shadowCamera.near, shadowCamera.far, type ); + + _renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group ); + + } + + } + + } else if ( material.visible ) { + + const depthMaterial = getDepthMaterial( object, geometry, material, light, shadowCamera.near, shadowCamera.far, type ); + + _renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null ); + + } + + } + + } + + const children = object.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + renderObject( children[ i ], camera, shadowCamera, light, type ); + + } + + } + +} + +function WebGLState( gl, extensions, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + function ColorBuffer() { + + let locked = false; + + const color = new Vector4(); + let currentColorMask = null; + const currentColorClear = new Vector4( 0, 0, 0, 0 ); + + return { + + setMask: function ( colorMask ) { + + if ( currentColorMask !== colorMask && ! locked ) { + + gl.colorMask( colorMask, colorMask, colorMask, colorMask ); + currentColorMask = colorMask; + + } + + }, + + setLocked: function ( lock ) { + + locked = lock; + + }, + + setClear: function ( r, g, b, a, premultipliedAlpha ) { + + if ( premultipliedAlpha === true ) { + + r *= a; g *= a; b *= a; + + } + + color.set( r, g, b, a ); + + if ( currentColorClear.equals( color ) === false ) { + + gl.clearColor( r, g, b, a ); + currentColorClear.copy( color ); + + } + + }, + + reset: function () { + + locked = false; + + currentColorMask = null; + currentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state + + } + + }; + + } + + function DepthBuffer() { + + let locked = false; + + let currentDepthMask = null; + let currentDepthFunc = null; + let currentDepthClear = null; + + return { + + setTest: function ( depthTest ) { + + if ( depthTest ) { + + enable( 2929 ); + + } else { + + disable( 2929 ); + + } + + }, + + setMask: function ( depthMask ) { + + if ( currentDepthMask !== depthMask && ! locked ) { + + gl.depthMask( depthMask ); + currentDepthMask = depthMask; + + } + + }, + + setFunc: function ( depthFunc ) { + + if ( currentDepthFunc !== depthFunc ) { + + if ( depthFunc ) { + + switch ( depthFunc ) { + + case NeverDepth: + + gl.depthFunc( 512 ); + break; + + case AlwaysDepth: + + gl.depthFunc( 519 ); + break; + + case LessDepth: + + gl.depthFunc( 513 ); + break; + + case LessEqualDepth: + + gl.depthFunc( 515 ); + break; + + case EqualDepth: + + gl.depthFunc( 514 ); + break; + + case GreaterEqualDepth: + + gl.depthFunc( 518 ); + break; + + case GreaterDepth: + + gl.depthFunc( 516 ); + break; + + case NotEqualDepth: + + gl.depthFunc( 517 ); + break; + + default: + + gl.depthFunc( 515 ); + + } + + } else { + + gl.depthFunc( 515 ); + + } + + currentDepthFunc = depthFunc; + + } + + }, + + setLocked: function ( lock ) { + + locked = lock; + + }, + + setClear: function ( depth ) { + + if ( currentDepthClear !== depth ) { + + gl.clearDepth( depth ); + currentDepthClear = depth; + + } + + }, + + reset: function () { + + locked = false; + + currentDepthMask = null; + currentDepthFunc = null; + currentDepthClear = null; + + } + + }; + + } + + function StencilBuffer() { + + let locked = false; + + let currentStencilMask = null; + let currentStencilFunc = null; + let currentStencilRef = null; + let currentStencilFuncMask = null; + let currentStencilFail = null; + let currentStencilZFail = null; + let currentStencilZPass = null; + let currentStencilClear = null; + + return { + + setTest: function ( stencilTest ) { + + if ( ! locked ) { + + if ( stencilTest ) { + + enable( 2960 ); + + } else { + + disable( 2960 ); + + } + + } + + }, + + setMask: function ( stencilMask ) { + + if ( currentStencilMask !== stencilMask && ! locked ) { + + gl.stencilMask( stencilMask ); + currentStencilMask = stencilMask; + + } + + }, + + setFunc: function ( stencilFunc, stencilRef, stencilMask ) { + + if ( currentStencilFunc !== stencilFunc || + currentStencilRef !== stencilRef || + currentStencilFuncMask !== stencilMask ) { + + gl.stencilFunc( stencilFunc, stencilRef, stencilMask ); + + currentStencilFunc = stencilFunc; + currentStencilRef = stencilRef; + currentStencilFuncMask = stencilMask; + + } + + }, + + setOp: function ( stencilFail, stencilZFail, stencilZPass ) { + + if ( currentStencilFail !== stencilFail || + currentStencilZFail !== stencilZFail || + currentStencilZPass !== stencilZPass ) { + + gl.stencilOp( stencilFail, stencilZFail, stencilZPass ); + + currentStencilFail = stencilFail; + currentStencilZFail = stencilZFail; + currentStencilZPass = stencilZPass; + + } + + }, + + setLocked: function ( lock ) { + + locked = lock; + + }, + + setClear: function ( stencil ) { + + if ( currentStencilClear !== stencil ) { + + gl.clearStencil( stencil ); + currentStencilClear = stencil; + + } + + }, + + reset: function () { + + locked = false; + + currentStencilMask = null; + currentStencilFunc = null; + currentStencilRef = null; + currentStencilFuncMask = null; + currentStencilFail = null; + currentStencilZFail = null; + currentStencilZPass = null; + currentStencilClear = null; + + } + + }; + + } + + // + + const colorBuffer = new ColorBuffer(); + const depthBuffer = new DepthBuffer(); + const stencilBuffer = new StencilBuffer(); + + let enabledCapabilities = {}; + + let xrFramebuffer = null; + let currentBoundFramebuffers = {}; + + let currentProgram = null; + + let currentBlendingEnabled = false; + let currentBlending = null; + let currentBlendEquation = null; + let currentBlendSrc = null; + let currentBlendDst = null; + let currentBlendEquationAlpha = null; + let currentBlendSrcAlpha = null; + let currentBlendDstAlpha = null; + let currentPremultipledAlpha = false; + + let currentFlipSided = null; + let currentCullFace = null; + + let currentLineWidth = null; + + let currentPolygonOffsetFactor = null; + let currentPolygonOffsetUnits = null; + + const maxTextures = gl.getParameter( 35661 ); + + let lineWidthAvailable = false; + let version = 0; + const glVersion = gl.getParameter( 7938 ); + + if ( glVersion.indexOf( 'WebGL' ) !== - 1 ) { + + version = parseFloat( /^WebGL (\d)/.exec( glVersion )[ 1 ] ); + lineWidthAvailable = ( version >= 1.0 ); + + } else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) { + + version = parseFloat( /^OpenGL ES (\d)/.exec( glVersion )[ 1 ] ); + lineWidthAvailable = ( version >= 2.0 ); + + } + + let currentTextureSlot = null; + let currentBoundTextures = {}; + + const scissorParam = gl.getParameter( 3088 ); + const viewportParam = gl.getParameter( 2978 ); + + const currentScissor = new Vector4().fromArray( scissorParam ); + const currentViewport = new Vector4().fromArray( viewportParam ); + + function createTexture( type, target, count ) { + + const data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4. + const texture = gl.createTexture(); + + gl.bindTexture( type, texture ); + gl.texParameteri( type, 10241, 9728 ); + gl.texParameteri( type, 10240, 9728 ); + + for ( let i = 0; i < count; i ++ ) { + + gl.texImage2D( target + i, 0, 6408, 1, 1, 0, 6408, 5121, data ); + + } + + return texture; + + } + + const emptyTextures = {}; + emptyTextures[ 3553 ] = createTexture( 3553, 3553, 1 ); + emptyTextures[ 34067 ] = createTexture( 34067, 34069, 6 ); + + // init + + colorBuffer.setClear( 0, 0, 0, 1 ); + depthBuffer.setClear( 1 ); + stencilBuffer.setClear( 0 ); + + enable( 2929 ); + depthBuffer.setFunc( LessEqualDepth ); + + setFlipSided( false ); + setCullFace( CullFaceBack ); + enable( 2884 ); + + setBlending( NoBlending ); + + // + + function enable( id ) { + + if ( enabledCapabilities[ id ] !== true ) { + + gl.enable( id ); + enabledCapabilities[ id ] = true; + + } + + } + + function disable( id ) { + + if ( enabledCapabilities[ id ] !== false ) { + + gl.disable( id ); + enabledCapabilities[ id ] = false; + + } + + } + + function bindXRFramebuffer( framebuffer ) { + + if ( framebuffer !== xrFramebuffer ) { + + gl.bindFramebuffer( 36160, framebuffer ); + + xrFramebuffer = framebuffer; + + } + + } + + function bindFramebuffer( target, framebuffer ) { + + if ( framebuffer === null && xrFramebuffer !== null ) framebuffer = xrFramebuffer; // use active XR framebuffer if available + + if ( currentBoundFramebuffers[ target ] !== framebuffer ) { + + gl.bindFramebuffer( target, framebuffer ); + + currentBoundFramebuffers[ target ] = framebuffer; + + if ( isWebGL2 ) { + + // 36009 is equivalent to 36160 + + if ( target === 36009 ) { + + currentBoundFramebuffers[ 36160 ] = framebuffer; + + } + + if ( target === 36160 ) { + + currentBoundFramebuffers[ 36009 ] = framebuffer; + + } + + } + + return true; + + } + + return false; + + } + + function useProgram( program ) { + + if ( currentProgram !== program ) { + + gl.useProgram( program ); + + currentProgram = program; + + return true; + + } + + return false; + + } + + const equationToGL = { + [ AddEquation ]: 32774, + [ SubtractEquation ]: 32778, + [ ReverseSubtractEquation ]: 32779 + }; + + if ( isWebGL2 ) { + + equationToGL[ MinEquation ] = 32775; + equationToGL[ MaxEquation ] = 32776; + + } else { + + const extension = extensions.get( 'EXT_blend_minmax' ); + + if ( extension !== null ) { + + equationToGL[ MinEquation ] = extension.MIN_EXT; + equationToGL[ MaxEquation ] = extension.MAX_EXT; + + } + + } + + const factorToGL = { + [ ZeroFactor ]: 0, + [ OneFactor ]: 1, + [ SrcColorFactor ]: 768, + [ SrcAlphaFactor ]: 770, + [ SrcAlphaSaturateFactor ]: 776, + [ DstColorFactor ]: 774, + [ DstAlphaFactor ]: 772, + [ OneMinusSrcColorFactor ]: 769, + [ OneMinusSrcAlphaFactor ]: 771, + [ OneMinusDstColorFactor ]: 775, + [ OneMinusDstAlphaFactor ]: 773 + }; + + function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) { + + if ( blending === NoBlending ) { + + if ( currentBlendingEnabled === true ) { + + disable( 3042 ); + currentBlendingEnabled = false; + + } + + return; + + } + + if ( currentBlendingEnabled === false ) { + + enable( 3042 ); + currentBlendingEnabled = true; + + } + + if ( blending !== CustomBlending ) { + + if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) { + + if ( currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation ) { + + gl.blendEquation( 32774 ); + + currentBlendEquation = AddEquation; + currentBlendEquationAlpha = AddEquation; + + } + + if ( premultipliedAlpha ) { + + switch ( blending ) { + + case NormalBlending: + gl.blendFuncSeparate( 1, 771, 1, 771 ); + break; + + case AdditiveBlending: + gl.blendFunc( 1, 1 ); + break; + + case SubtractiveBlending: + gl.blendFuncSeparate( 0, 0, 769, 771 ); + break; + + case MultiplyBlending: + gl.blendFuncSeparate( 0, 768, 0, 770 ); + break; + + default: + console.error( 'THREE.WebGLState: Invalid blending: ', blending ); + break; + + } + + } else { + + switch ( blending ) { + + case NormalBlending: + gl.blendFuncSeparate( 770, 771, 1, 771 ); + break; + + case AdditiveBlending: + gl.blendFunc( 770, 1 ); + break; + + case SubtractiveBlending: + gl.blendFunc( 0, 769 ); + break; + + case MultiplyBlending: + gl.blendFunc( 0, 768 ); + break; + + default: + console.error( 'THREE.WebGLState: Invalid blending: ', blending ); + break; + + } + + } + + currentBlendSrc = null; + currentBlendDst = null; + currentBlendSrcAlpha = null; + currentBlendDstAlpha = null; + + currentBlending = blending; + currentPremultipledAlpha = premultipliedAlpha; + + } + + return; + + } + + // custom blending + + blendEquationAlpha = blendEquationAlpha || blendEquation; + blendSrcAlpha = blendSrcAlpha || blendSrc; + blendDstAlpha = blendDstAlpha || blendDst; + + if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) { + + gl.blendEquationSeparate( equationToGL[ blendEquation ], equationToGL[ blendEquationAlpha ] ); + + currentBlendEquation = blendEquation; + currentBlendEquationAlpha = blendEquationAlpha; + + } + + if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) { + + gl.blendFuncSeparate( factorToGL[ blendSrc ], factorToGL[ blendDst ], factorToGL[ blendSrcAlpha ], factorToGL[ blendDstAlpha ] ); + + currentBlendSrc = blendSrc; + currentBlendDst = blendDst; + currentBlendSrcAlpha = blendSrcAlpha; + currentBlendDstAlpha = blendDstAlpha; + + } + + currentBlending = blending; + currentPremultipledAlpha = null; + + } + + function setMaterial( material, frontFaceCW ) { + + material.side === DoubleSide + ? disable( 2884 ) + : enable( 2884 ); + + let flipSided = ( material.side === BackSide ); + if ( frontFaceCW ) flipSided = ! flipSided; + + setFlipSided( flipSided ); + + ( material.blending === NormalBlending && material.transparent === false ) + ? setBlending( NoBlending ) + : setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha ); + + depthBuffer.setFunc( material.depthFunc ); + depthBuffer.setTest( material.depthTest ); + depthBuffer.setMask( material.depthWrite ); + colorBuffer.setMask( material.colorWrite ); + + const stencilWrite = material.stencilWrite; + stencilBuffer.setTest( stencilWrite ); + if ( stencilWrite ) { + + stencilBuffer.setMask( material.stencilWriteMask ); + stencilBuffer.setFunc( material.stencilFunc, material.stencilRef, material.stencilFuncMask ); + stencilBuffer.setOp( material.stencilFail, material.stencilZFail, material.stencilZPass ); + + } + + setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits ); + + material.alphaToCoverage === true + ? enable( 32926 ) + : disable( 32926 ); + + } + + // + + function setFlipSided( flipSided ) { + + if ( currentFlipSided !== flipSided ) { + + if ( flipSided ) { + + gl.frontFace( 2304 ); + + } else { + + gl.frontFace( 2305 ); + + } + + currentFlipSided = flipSided; + + } + + } + + function setCullFace( cullFace ) { + + if ( cullFace !== CullFaceNone ) { + + enable( 2884 ); + + if ( cullFace !== currentCullFace ) { + + if ( cullFace === CullFaceBack ) { + + gl.cullFace( 1029 ); + + } else if ( cullFace === CullFaceFront ) { + + gl.cullFace( 1028 ); + + } else { + + gl.cullFace( 1032 ); + + } + + } + + } else { + + disable( 2884 ); + + } + + currentCullFace = cullFace; + + } + + function setLineWidth( width ) { + + if ( width !== currentLineWidth ) { + + if ( lineWidthAvailable ) gl.lineWidth( width ); + + currentLineWidth = width; + + } + + } + + function setPolygonOffset( polygonOffset, factor, units ) { + + if ( polygonOffset ) { + + enable( 32823 ); + + if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) { + + gl.polygonOffset( factor, units ); + + currentPolygonOffsetFactor = factor; + currentPolygonOffsetUnits = units; + + } + + } else { + + disable( 32823 ); + + } + + } + + function setScissorTest( scissorTest ) { + + if ( scissorTest ) { + + enable( 3089 ); + + } else { + + disable( 3089 ); + + } + + } + + // texture + + function activeTexture( webglSlot ) { + + if ( webglSlot === undefined ) webglSlot = 33984 + maxTextures - 1; + + if ( currentTextureSlot !== webglSlot ) { + + gl.activeTexture( webglSlot ); + currentTextureSlot = webglSlot; + + } + + } + + function bindTexture( webglType, webglTexture ) { + + if ( currentTextureSlot === null ) { + + activeTexture(); + + } + + let boundTexture = currentBoundTextures[ currentTextureSlot ]; + + if ( boundTexture === undefined ) { + + boundTexture = { type: undefined, texture: undefined }; + currentBoundTextures[ currentTextureSlot ] = boundTexture; + + } + + if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) { + + gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] ); + + boundTexture.type = webglType; + boundTexture.texture = webglTexture; + + } + + } + + function unbindTexture() { + + const boundTexture = currentBoundTextures[ currentTextureSlot ]; + + if ( boundTexture !== undefined && boundTexture.type !== undefined ) { + + gl.bindTexture( boundTexture.type, null ); + + boundTexture.type = undefined; + boundTexture.texture = undefined; + + } + + } + + function compressedTexImage2D() { + + try { + + gl.compressedTexImage2D.apply( gl, arguments ); + + } catch ( error ) { + + console.error( 'THREE.WebGLState:', error ); + + } + + } + + function texImage2D() { + + try { + + gl.texImage2D.apply( gl, arguments ); + + } catch ( error ) { + + console.error( 'THREE.WebGLState:', error ); + + } + + } + + function texImage3D() { + + try { + + gl.texImage3D.apply( gl, arguments ); + + } catch ( error ) { + + console.error( 'THREE.WebGLState:', error ); + + } + + } + + // + + function scissor( scissor ) { + + if ( currentScissor.equals( scissor ) === false ) { + + gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w ); + currentScissor.copy( scissor ); + + } + + } + + function viewport( viewport ) { + + if ( currentViewport.equals( viewport ) === false ) { + + gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w ); + currentViewport.copy( viewport ); + + } + + } + + // + + function reset() { + + // reset state + + gl.disable( 3042 ); + gl.disable( 2884 ); + gl.disable( 2929 ); + gl.disable( 32823 ); + gl.disable( 3089 ); + gl.disable( 2960 ); + gl.disable( 32926 ); + + gl.blendEquation( 32774 ); + gl.blendFunc( 1, 0 ); + gl.blendFuncSeparate( 1, 0, 1, 0 ); + + gl.colorMask( true, true, true, true ); + gl.clearColor( 0, 0, 0, 0 ); + + gl.depthMask( true ); + gl.depthFunc( 513 ); + gl.clearDepth( 1 ); + + gl.stencilMask( 0xffffffff ); + gl.stencilFunc( 519, 0, 0xffffffff ); + gl.stencilOp( 7680, 7680, 7680 ); + gl.clearStencil( 0 ); + + gl.cullFace( 1029 ); + gl.frontFace( 2305 ); + + gl.polygonOffset( 0, 0 ); + + gl.activeTexture( 33984 ); + + gl.bindFramebuffer( 36160, null ); + + if ( isWebGL2 === true ) { + + gl.bindFramebuffer( 36009, null ); + gl.bindFramebuffer( 36008, null ); + + } + + gl.useProgram( null ); + + gl.lineWidth( 1 ); + + gl.scissor( 0, 0, gl.canvas.width, gl.canvas.height ); + gl.viewport( 0, 0, gl.canvas.width, gl.canvas.height ); + + // reset internals + + enabledCapabilities = {}; + + currentTextureSlot = null; + currentBoundTextures = {}; + + xrFramebuffer = null; + currentBoundFramebuffers = {}; + + currentProgram = null; + + currentBlendingEnabled = false; + currentBlending = null; + currentBlendEquation = null; + currentBlendSrc = null; + currentBlendDst = null; + currentBlendEquationAlpha = null; + currentBlendSrcAlpha = null; + currentBlendDstAlpha = null; + currentPremultipledAlpha = false; + + currentFlipSided = null; + currentCullFace = null; + + currentLineWidth = null; + + currentPolygonOffsetFactor = null; + currentPolygonOffsetUnits = null; + + currentScissor.set( 0, 0, gl.canvas.width, gl.canvas.height ); + currentViewport.set( 0, 0, gl.canvas.width, gl.canvas.height ); + + colorBuffer.reset(); + depthBuffer.reset(); + stencilBuffer.reset(); + + } + + return { + + buffers: { + color: colorBuffer, + depth: depthBuffer, + stencil: stencilBuffer + }, + + enable: enable, + disable: disable, + + bindFramebuffer: bindFramebuffer, + bindXRFramebuffer: bindXRFramebuffer, + + useProgram: useProgram, + + setBlending: setBlending, + setMaterial: setMaterial, + + setFlipSided: setFlipSided, + setCullFace: setCullFace, + + setLineWidth: setLineWidth, + setPolygonOffset: setPolygonOffset, + + setScissorTest: setScissorTest, + + activeTexture: activeTexture, + bindTexture: bindTexture, + unbindTexture: unbindTexture, + compressedTexImage2D: compressedTexImage2D, + texImage2D: texImage2D, + texImage3D: texImage3D, + + scissor: scissor, + viewport: viewport, + + reset: reset + + }; + +} + +function WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ) { + + const isWebGL2 = capabilities.isWebGL2; + const maxTextures = capabilities.maxTextures; + const maxCubemapSize = capabilities.maxCubemapSize; + const maxTextureSize = capabilities.maxTextureSize; + const maxSamples = capabilities.maxSamples; + + const _videoTextures = new WeakMap(); + let _canvas; + + // cordova iOS (as of 5.0) still uses UIWebView, which provides OffscreenCanvas, + // also OffscreenCanvas.getContext("webgl"), but not OffscreenCanvas.getContext("2d")! + // Some implementations may only implement OffscreenCanvas partially (e.g. lacking 2d). + + let useOffscreenCanvas = false; + + try { + + useOffscreenCanvas = typeof OffscreenCanvas !== 'undefined' + && ( new OffscreenCanvas( 1, 1 ).getContext( '2d' ) ) !== null; + + } catch ( err ) { + + // Ignore any errors + + } + + function createCanvas( width, height ) { + + // Use OffscreenCanvas when available. Specially needed in web workers + + return useOffscreenCanvas ? + new OffscreenCanvas( width, height ) : createElementNS( 'canvas' ); + + } + + function resizeImage( image, needsPowerOfTwo, needsNewCanvas, maxSize ) { + + let scale = 1; + + // handle case if texture exceeds max size + + if ( image.width > maxSize || image.height > maxSize ) { + + scale = maxSize / Math.max( image.width, image.height ); + + } + + // only perform resize if necessary + + if ( scale < 1 || needsPowerOfTwo === true ) { + + // only perform resize for certain image types + + if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) || + ( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) || + ( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) { + + const floor = needsPowerOfTwo ? floorPowerOfTwo : Math.floor; + + const width = floor( scale * image.width ); + const height = floor( scale * image.height ); + + if ( _canvas === undefined ) _canvas = createCanvas( width, height ); + + // cube textures can't reuse the same canvas + + const canvas = needsNewCanvas ? createCanvas( width, height ) : _canvas; + + canvas.width = width; + canvas.height = height; + + const context = canvas.getContext( '2d' ); + context.drawImage( image, 0, 0, width, height ); + + console.warn( 'THREE.WebGLRenderer: Texture has been resized from (' + image.width + 'x' + image.height + ') to (' + width + 'x' + height + ').' ); + + return canvas; + + } else { + + if ( 'data' in image ) { + + console.warn( 'THREE.WebGLRenderer: Image in DataTexture is too big (' + image.width + 'x' + image.height + ').' ); + + } + + return image; + + } + + } + + return image; + + } + + function isPowerOfTwo$1( image ) { + + return isPowerOfTwo( image.width ) && isPowerOfTwo( image.height ); + + } + + function textureNeedsPowerOfTwo( texture ) { + + if ( isWebGL2 ) return false; + + return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) || + ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ); + + } + + function textureNeedsGenerateMipmaps( texture, supportsMips ) { + + return texture.generateMipmaps && supportsMips && + texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter; + + } + + function generateMipmap( target, texture, width, height, depth = 1 ) { + + _gl.generateMipmap( target ); + + const textureProperties = properties.get( texture ); + + textureProperties.__maxMipLevel = Math.log2( Math.max( width, height, depth ) ); + + } + + function getInternalFormat( internalFormatName, glFormat, glType, encoding ) { + + if ( isWebGL2 === false ) return glFormat; + + if ( internalFormatName !== null ) { + + if ( _gl[ internalFormatName ] !== undefined ) return _gl[ internalFormatName ]; + + console.warn( 'THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format \'' + internalFormatName + '\'' ); + + } + + let internalFormat = glFormat; + + if ( glFormat === 6403 ) { + + if ( glType === 5126 ) internalFormat = 33326; + if ( glType === 5131 ) internalFormat = 33325; + if ( glType === 5121 ) internalFormat = 33321; + + } + + if ( glFormat === 6407 ) { + + if ( glType === 5126 ) internalFormat = 34837; + if ( glType === 5131 ) internalFormat = 34843; + if ( glType === 5121 ) internalFormat = 32849; + + } + + if ( glFormat === 6408 ) { + + if ( glType === 5126 ) internalFormat = 34836; + if ( glType === 5131 ) internalFormat = 34842; + if ( glType === 5121 ) internalFormat = ( encoding === sRGBEncoding ) ? 35907 : 32856; + + } + + if ( internalFormat === 33325 || internalFormat === 33326 || + internalFormat === 34842 || internalFormat === 34836 ) { + + extensions.get( 'EXT_color_buffer_float' ); + + } + + return internalFormat; + + } + + // Fallback filters for non-power-of-2 textures + + function filterFallback( f ) { + + if ( f === NearestFilter || f === NearestMipmapNearestFilter || f === NearestMipmapLinearFilter ) { + + return 9728; + + } + + return 9729; + + } + + // + + function onTextureDispose( event ) { + + const texture = event.target; + + texture.removeEventListener( 'dispose', onTextureDispose ); + + deallocateTexture( texture ); + + if ( texture.isVideoTexture ) { + + _videoTextures.delete( texture ); + + } + + info.memory.textures --; + + } + + function onRenderTargetDispose( event ) { + + const renderTarget = event.target; + + renderTarget.removeEventListener( 'dispose', onRenderTargetDispose ); + + deallocateRenderTarget( renderTarget ); + + } + + // + + function deallocateTexture( texture ) { + + const textureProperties = properties.get( texture ); + + if ( textureProperties.__webglInit === undefined ) return; + + _gl.deleteTexture( textureProperties.__webglTexture ); + + properties.remove( texture ); + + } + + function deallocateRenderTarget( renderTarget ) { + + const texture = renderTarget.texture; + + const renderTargetProperties = properties.get( renderTarget ); + const textureProperties = properties.get( texture ); + + if ( ! renderTarget ) return; + + if ( textureProperties.__webglTexture !== undefined ) { + + _gl.deleteTexture( textureProperties.__webglTexture ); + + info.memory.textures --; + + } + + if ( renderTarget.depthTexture ) { + + renderTarget.depthTexture.dispose(); + + } + + if ( renderTarget.isWebGLCubeRenderTarget ) { + + for ( let i = 0; i < 6; i ++ ) { + + _gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] ); + if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] ); + + } + + } else { + + _gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer ); + if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer ); + if ( renderTargetProperties.__webglMultisampledFramebuffer ) _gl.deleteFramebuffer( renderTargetProperties.__webglMultisampledFramebuffer ); + if ( renderTargetProperties.__webglColorRenderbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglColorRenderbuffer ); + if ( renderTargetProperties.__webglDepthRenderbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthRenderbuffer ); + + } + + if ( renderTarget.isWebGLMultipleRenderTargets ) { + + for ( let i = 0, il = texture.length; i < il; i ++ ) { + + const attachmentProperties = properties.get( texture[ i ] ); + + if ( attachmentProperties.__webglTexture ) { + + _gl.deleteTexture( attachmentProperties.__webglTexture ); + + info.memory.textures --; + + } + + properties.remove( texture[ i ] ); + + } + + } + + properties.remove( texture ); + properties.remove( renderTarget ); + + } + + // + + let textureUnits = 0; + + function resetTextureUnits() { + + textureUnits = 0; + + } + + function allocateTextureUnit() { + + const textureUnit = textureUnits; + + if ( textureUnit >= maxTextures ) { + + console.warn( 'THREE.WebGLTextures: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + maxTextures ); + + } + + textureUnits += 1; + + return textureUnit; + + } + + // + + function setTexture2D( texture, slot ) { + + const textureProperties = properties.get( texture ); + + if ( texture.isVideoTexture ) updateVideoTexture( texture ); + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + const image = texture.image; + + if ( image === undefined ) { + + console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined' ); + + } else if ( image.complete === false ) { + + console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete' ); + + } else { + + uploadTexture( textureProperties, texture, slot ); + return; + + } + + } + + state.activeTexture( 33984 + slot ); + state.bindTexture( 3553, textureProperties.__webglTexture ); + + } + + function setTexture2DArray( texture, slot ) { + + const textureProperties = properties.get( texture ); + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + uploadTexture( textureProperties, texture, slot ); + return; + + } + + state.activeTexture( 33984 + slot ); + state.bindTexture( 35866, textureProperties.__webglTexture ); + + } + + function setTexture3D( texture, slot ) { + + const textureProperties = properties.get( texture ); + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + uploadTexture( textureProperties, texture, slot ); + return; + + } + + state.activeTexture( 33984 + slot ); + state.bindTexture( 32879, textureProperties.__webglTexture ); + + } + + function setTextureCube( texture, slot ) { + + const textureProperties = properties.get( texture ); + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + uploadCubeTexture( textureProperties, texture, slot ); + return; + + } + + state.activeTexture( 33984 + slot ); + state.bindTexture( 34067, textureProperties.__webglTexture ); + + } + + const wrappingToGL = { + [ RepeatWrapping ]: 10497, + [ ClampToEdgeWrapping ]: 33071, + [ MirroredRepeatWrapping ]: 33648 + }; + + const filterToGL = { + [ NearestFilter ]: 9728, + [ NearestMipmapNearestFilter ]: 9984, + [ NearestMipmapLinearFilter ]: 9986, + + [ LinearFilter ]: 9729, + [ LinearMipmapNearestFilter ]: 9985, + [ LinearMipmapLinearFilter ]: 9987 + }; + + function setTextureParameters( textureType, texture, supportsMips ) { + + if ( supportsMips ) { + + _gl.texParameteri( textureType, 10242, wrappingToGL[ texture.wrapS ] ); + _gl.texParameteri( textureType, 10243, wrappingToGL[ texture.wrapT ] ); + + if ( textureType === 32879 || textureType === 35866 ) { + + _gl.texParameteri( textureType, 32882, wrappingToGL[ texture.wrapR ] ); + + } + + _gl.texParameteri( textureType, 10240, filterToGL[ texture.magFilter ] ); + _gl.texParameteri( textureType, 10241, filterToGL[ texture.minFilter ] ); + + } else { + + _gl.texParameteri( textureType, 10242, 33071 ); + _gl.texParameteri( textureType, 10243, 33071 ); + + if ( textureType === 32879 || textureType === 35866 ) { + + _gl.texParameteri( textureType, 32882, 33071 ); + + } + + if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) { + + console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.' ); + + } + + _gl.texParameteri( textureType, 10240, filterFallback( texture.magFilter ) ); + _gl.texParameteri( textureType, 10241, filterFallback( texture.minFilter ) ); + + if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) { + + console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.' ); + + } + + } + + if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) { + + const extension = extensions.get( 'EXT_texture_filter_anisotropic' ); + + if ( texture.type === FloatType && extensions.has( 'OES_texture_float_linear' ) === false ) return; // verify extension for WebGL 1 and WebGL 2 + if ( isWebGL2 === false && ( texture.type === HalfFloatType && extensions.has( 'OES_texture_half_float_linear' ) === false ) ) return; // verify extension for WebGL 1 only + + if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) { + + _gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) ); + properties.get( texture ).__currentAnisotropy = texture.anisotropy; + + } + + } + + } + + function initTexture( textureProperties, texture ) { + + if ( textureProperties.__webglInit === undefined ) { + + textureProperties.__webglInit = true; + + texture.addEventListener( 'dispose', onTextureDispose ); + + textureProperties.__webglTexture = _gl.createTexture(); + + info.memory.textures ++; + + } + + } + + function uploadTexture( textureProperties, texture, slot ) { + + let textureType = 3553; + + if ( texture.isDataTexture2DArray ) textureType = 35866; + if ( texture.isDataTexture3D ) textureType = 32879; + + initTexture( textureProperties, texture ); + + state.activeTexture( 33984 + slot ); + state.bindTexture( textureType, textureProperties.__webglTexture ); + + _gl.pixelStorei( 37440, texture.flipY ); + _gl.pixelStorei( 37441, texture.premultiplyAlpha ); + _gl.pixelStorei( 3317, texture.unpackAlignment ); + _gl.pixelStorei( 37443, 0 ); + + const needsPowerOfTwo = textureNeedsPowerOfTwo( texture ) && isPowerOfTwo$1( texture.image ) === false; + const image = resizeImage( texture.image, needsPowerOfTwo, false, maxTextureSize ); + + const supportsMips = isPowerOfTwo$1( image ) || isWebGL2, + glFormat = utils.convert( texture.format ); + + let glType = utils.convert( texture.type ), + glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding ); + + setTextureParameters( textureType, texture, supportsMips ); + + let mipmap; + const mipmaps = texture.mipmaps; + + if ( texture.isDepthTexture ) { + + // populate depth texture with dummy data + + glInternalFormat = 6402; + + if ( isWebGL2 ) { + + if ( texture.type === FloatType ) { + + glInternalFormat = 36012; + + } else if ( texture.type === UnsignedIntType ) { + + glInternalFormat = 33190; + + } else if ( texture.type === UnsignedInt248Type ) { + + glInternalFormat = 35056; + + } else { + + glInternalFormat = 33189; // WebGL2 requires sized internalformat for glTexImage2D + + } + + } else { + + if ( texture.type === FloatType ) { + + console.error( 'WebGLRenderer: Floating point depth texture requires WebGL2.' ); + + } + + } + + // validation checks for WebGL 1 + + if ( texture.format === DepthFormat && glInternalFormat === 6402 ) { + + // The error INVALID_OPERATION is generated by texImage2D if format and internalformat are + // DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT + // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/) + if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) { + + console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' ); + + texture.type = UnsignedShortType; + glType = utils.convert( texture.type ); + + } + + } + + if ( texture.format === DepthStencilFormat && glInternalFormat === 6402 ) { + + // Depth stencil textures need the DEPTH_STENCIL internal format + // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/) + glInternalFormat = 34041; + + // The error INVALID_OPERATION is generated by texImage2D if format and internalformat are + // DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL. + // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/) + if ( texture.type !== UnsignedInt248Type ) { + + console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' ); + + texture.type = UnsignedInt248Type; + glType = utils.convert( texture.type ); + + } + + } + + // + + state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null ); + + } else if ( texture.isDataTexture ) { + + // use manually created mipmaps if available + // if there are no manual mipmaps + // set 0 level mipmap and then use GL to generate other mipmap levels + + if ( mipmaps.length > 0 && supportsMips ) { + + for ( let i = 0, il = mipmaps.length; i < il; i ++ ) { + + mipmap = mipmaps[ i ]; + state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data ); + + } + + texture.generateMipmaps = false; + textureProperties.__maxMipLevel = mipmaps.length - 1; + + } else { + + state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data ); + textureProperties.__maxMipLevel = 0; + + } + + } else if ( texture.isCompressedTexture ) { + + for ( let i = 0, il = mipmaps.length; i < il; i ++ ) { + + mipmap = mipmaps[ i ]; + + if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) { + + if ( glFormat !== null ) { + + state.compressedTexImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data ); + + } else { + + console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' ); + + } + + } else { + + state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data ); + + } + + } + + textureProperties.__maxMipLevel = mipmaps.length - 1; + + } else if ( texture.isDataTexture2DArray ) { + + state.texImage3D( 35866, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data ); + textureProperties.__maxMipLevel = 0; + + } else if ( texture.isDataTexture3D ) { + + state.texImage3D( 32879, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data ); + textureProperties.__maxMipLevel = 0; + + } else { + + // regular Texture (image, video, canvas) + + // use manually created mipmaps if available + // if there are no manual mipmaps + // set 0 level mipmap and then use GL to generate other mipmap levels + + if ( mipmaps.length > 0 && supportsMips ) { + + for ( let i = 0, il = mipmaps.length; i < il; i ++ ) { + + mipmap = mipmaps[ i ]; + state.texImage2D( 3553, i, glInternalFormat, glFormat, glType, mipmap ); + + } + + texture.generateMipmaps = false; + textureProperties.__maxMipLevel = mipmaps.length - 1; + + } else { + + state.texImage2D( 3553, 0, glInternalFormat, glFormat, glType, image ); + textureProperties.__maxMipLevel = 0; + + } + + } + + if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) { + + generateMipmap( textureType, texture, image.width, image.height ); + + } + + textureProperties.__version = texture.version; + + if ( texture.onUpdate ) texture.onUpdate( texture ); + + } + + function uploadCubeTexture( textureProperties, texture, slot ) { + + if ( texture.image.length !== 6 ) return; + + initTexture( textureProperties, texture ); + + state.activeTexture( 33984 + slot ); + state.bindTexture( 34067, textureProperties.__webglTexture ); + + _gl.pixelStorei( 37440, texture.flipY ); + _gl.pixelStorei( 37441, texture.premultiplyAlpha ); + _gl.pixelStorei( 3317, texture.unpackAlignment ); + _gl.pixelStorei( 37443, 0 ); + + const isCompressed = ( texture && ( texture.isCompressedTexture || texture.image[ 0 ].isCompressedTexture ) ); + const isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture ); + + const cubeImage = []; + + for ( let i = 0; i < 6; i ++ ) { + + if ( ! isCompressed && ! isDataTexture ) { + + cubeImage[ i ] = resizeImage( texture.image[ i ], false, true, maxCubemapSize ); + + } else { + + cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ]; + + } + + } + + const image = cubeImage[ 0 ], + supportsMips = isPowerOfTwo$1( image ) || isWebGL2, + glFormat = utils.convert( texture.format ), + glType = utils.convert( texture.type ), + glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding ); + + setTextureParameters( 34067, texture, supportsMips ); + + let mipmaps; + + if ( isCompressed ) { + + for ( let i = 0; i < 6; i ++ ) { + + mipmaps = cubeImage[ i ].mipmaps; + + for ( let j = 0; j < mipmaps.length; j ++ ) { + + const mipmap = mipmaps[ j ]; + + if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) { + + if ( glFormat !== null ) { + + state.compressedTexImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data ); + + } else { + + console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' ); + + } + + } else { + + state.texImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data ); + + } + + } + + } + + textureProperties.__maxMipLevel = mipmaps.length - 1; + + } else { + + mipmaps = texture.mipmaps; + + for ( let i = 0; i < 6; i ++ ) { + + if ( isDataTexture ) { + + state.texImage2D( 34069 + i, 0, glInternalFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data ); + + for ( let j = 0; j < mipmaps.length; j ++ ) { + + const mipmap = mipmaps[ j ]; + const mipmapImage = mipmap.image[ i ].image; + + state.texImage2D( 34069 + i, j + 1, glInternalFormat, mipmapImage.width, mipmapImage.height, 0, glFormat, glType, mipmapImage.data ); + + } + + } else { + + state.texImage2D( 34069 + i, 0, glInternalFormat, glFormat, glType, cubeImage[ i ] ); + + for ( let j = 0; j < mipmaps.length; j ++ ) { + + const mipmap = mipmaps[ j ]; + + state.texImage2D( 34069 + i, j + 1, glInternalFormat, glFormat, glType, mipmap.image[ i ] ); + + } + + } + + } + + textureProperties.__maxMipLevel = mipmaps.length; + + } + + if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) { + + // We assume images for cube map have the same size. + generateMipmap( 34067, texture, image.width, image.height ); + + } + + textureProperties.__version = texture.version; + + if ( texture.onUpdate ) texture.onUpdate( texture ); + + } + + // Render targets + + // Setup storage for target texture and bind it to correct framebuffer + function setupFrameBufferTexture( framebuffer, renderTarget, texture, attachment, textureTarget ) { + + const glFormat = utils.convert( texture.format ); + const glType = utils.convert( texture.type ); + const glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding ); + + if ( textureTarget === 32879 || textureTarget === 35866 ) { + + state.texImage3D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, renderTarget.depth, 0, glFormat, glType, null ); + + } else { + + state.texImage2D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null ); + + } + + state.bindFramebuffer( 36160, framebuffer ); + _gl.framebufferTexture2D( 36160, attachment, textureTarget, properties.get( texture ).__webglTexture, 0 ); + state.bindFramebuffer( 36160, null ); + + } + + // Setup storage for internal depth/stencil buffers and bind to correct framebuffer + function setupRenderBufferStorage( renderbuffer, renderTarget, isMultisample ) { + + _gl.bindRenderbuffer( 36161, renderbuffer ); + + if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) { + + let glInternalFormat = 33189; + + if ( isMultisample ) { + + const depthTexture = renderTarget.depthTexture; + + if ( depthTexture && depthTexture.isDepthTexture ) { + + if ( depthTexture.type === FloatType ) { + + glInternalFormat = 36012; + + } else if ( depthTexture.type === UnsignedIntType ) { + + glInternalFormat = 33190; + + } + + } + + const samples = getRenderTargetSamples( renderTarget ); + + _gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height ); + + } else { + + _gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height ); + + } + + _gl.framebufferRenderbuffer( 36160, 36096, 36161, renderbuffer ); + + } else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) { + + if ( isMultisample ) { + + const samples = getRenderTargetSamples( renderTarget ); + + _gl.renderbufferStorageMultisample( 36161, samples, 35056, renderTarget.width, renderTarget.height ); + + } else { + + _gl.renderbufferStorage( 36161, 34041, renderTarget.width, renderTarget.height ); + + } + + + _gl.framebufferRenderbuffer( 36160, 33306, 36161, renderbuffer ); + + } else { + + // Use the first texture for MRT so far + const texture = renderTarget.isWebGLMultipleRenderTargets === true ? renderTarget.texture[ 0 ] : renderTarget.texture; + + const glFormat = utils.convert( texture.format ); + const glType = utils.convert( texture.type ); + const glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding ); + + if ( isMultisample ) { + + const samples = getRenderTargetSamples( renderTarget ); + + _gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height ); + + } else { + + _gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height ); + + } + + } + + _gl.bindRenderbuffer( 36161, null ); + + } + + // Setup resources for a Depth Texture for a FBO (needs an extension) + function setupDepthTexture( framebuffer, renderTarget ) { + + const isCube = ( renderTarget && renderTarget.isWebGLCubeRenderTarget ); + if ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' ); + + state.bindFramebuffer( 36160, framebuffer ); + + if ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) { + + throw new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' ); + + } + + // upload an empty depth texture with framebuffer size + if ( ! properties.get( renderTarget.depthTexture ).__webglTexture || + renderTarget.depthTexture.image.width !== renderTarget.width || + renderTarget.depthTexture.image.height !== renderTarget.height ) { + + renderTarget.depthTexture.image.width = renderTarget.width; + renderTarget.depthTexture.image.height = renderTarget.height; + renderTarget.depthTexture.needsUpdate = true; + + } + + setTexture2D( renderTarget.depthTexture, 0 ); + + const webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture; + + if ( renderTarget.depthTexture.format === DepthFormat ) { + + _gl.framebufferTexture2D( 36160, 36096, 3553, webglDepthTexture, 0 ); + + } else if ( renderTarget.depthTexture.format === DepthStencilFormat ) { + + _gl.framebufferTexture2D( 36160, 33306, 3553, webglDepthTexture, 0 ); + + } else { + + throw new Error( 'Unknown depthTexture format' ); + + } + + } + + // Setup GL resources for a non-texture depth buffer + function setupDepthRenderbuffer( renderTarget ) { + + const renderTargetProperties = properties.get( renderTarget ); + + const isCube = ( renderTarget.isWebGLCubeRenderTarget === true ); + + if ( renderTarget.depthTexture ) { + + if ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' ); + + setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget ); + + } else { + + if ( isCube ) { + + renderTargetProperties.__webglDepthbuffer = []; + + for ( let i = 0; i < 6; i ++ ) { + + state.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer[ i ] ); + renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer(); + setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget, false ); + + } + + } else { + + state.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer ); + renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer(); + setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget, false ); + + } + + } + + state.bindFramebuffer( 36160, null ); + + } + + // Set up GL resources for the render target + function setupRenderTarget( renderTarget ) { + + const texture = renderTarget.texture; + + const renderTargetProperties = properties.get( renderTarget ); + const textureProperties = properties.get( texture ); + + renderTarget.addEventListener( 'dispose', onRenderTargetDispose ); + + if ( renderTarget.isWebGLMultipleRenderTargets !== true ) { + + textureProperties.__webglTexture = _gl.createTexture(); + textureProperties.__version = texture.version; + info.memory.textures ++; + + } + + const isCube = ( renderTarget.isWebGLCubeRenderTarget === true ); + const isMultipleRenderTargets = ( renderTarget.isWebGLMultipleRenderTargets === true ); + const isMultisample = ( renderTarget.isWebGLMultisampleRenderTarget === true ); + const isRenderTarget3D = texture.isDataTexture3D || texture.isDataTexture2DArray; + const supportsMips = isPowerOfTwo$1( renderTarget ) || isWebGL2; + + // Handles WebGL2 RGBFormat fallback - #18858 + + if ( isWebGL2 && texture.format === RGBFormat && ( texture.type === FloatType || texture.type === HalfFloatType ) ) { + + texture.format = RGBAFormat; + + console.warn( 'THREE.WebGLRenderer: Rendering to textures with RGB format is not supported. Using RGBA format instead.' ); + + } + + // Setup framebuffer + + if ( isCube ) { + + renderTargetProperties.__webglFramebuffer = []; + + for ( let i = 0; i < 6; i ++ ) { + + renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer(); + + } + + } else { + + renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer(); + + if ( isMultipleRenderTargets ) { + + if ( capabilities.drawBuffers ) { + + const textures = renderTarget.texture; + + for ( let i = 0, il = textures.length; i < il; i ++ ) { + + const attachmentProperties = properties.get( textures[ i ] ); + + if ( attachmentProperties.__webglTexture === undefined ) { + + attachmentProperties.__webglTexture = _gl.createTexture(); + + info.memory.textures ++; + + } + + } + + } else { + + console.warn( 'THREE.WebGLRenderer: WebGLMultipleRenderTargets can only be used with WebGL2 or WEBGL_draw_buffers extension.' ); + + } + + } else if ( isMultisample ) { + + if ( isWebGL2 ) { + + renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer(); + renderTargetProperties.__webglColorRenderbuffer = _gl.createRenderbuffer(); + + _gl.bindRenderbuffer( 36161, renderTargetProperties.__webglColorRenderbuffer ); + + const glFormat = utils.convert( texture.format ); + const glType = utils.convert( texture.type ); + const glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding ); + const samples = getRenderTargetSamples( renderTarget ); + _gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height ); + + state.bindFramebuffer( 36160, renderTargetProperties.__webglMultisampledFramebuffer ); + _gl.framebufferRenderbuffer( 36160, 36064, 36161, renderTargetProperties.__webglColorRenderbuffer ); + _gl.bindRenderbuffer( 36161, null ); + + if ( renderTarget.depthBuffer ) { + + renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer(); + setupRenderBufferStorage( renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true ); + + } + + state.bindFramebuffer( 36160, null ); + + + } else { + + console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' ); + + } + + } + + } + + // Setup color buffer + + if ( isCube ) { + + state.bindTexture( 34067, textureProperties.__webglTexture ); + setTextureParameters( 34067, texture, supportsMips ); + + for ( let i = 0; i < 6; i ++ ) { + + setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, texture, 36064, 34069 + i ); + + } + + if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) { + + generateMipmap( 34067, texture, renderTarget.width, renderTarget.height ); + + } + + state.unbindTexture(); + + } else if ( isMultipleRenderTargets ) { + + const textures = renderTarget.texture; + + for ( let i = 0, il = textures.length; i < il; i ++ ) { + + const attachment = textures[ i ]; + const attachmentProperties = properties.get( attachment ); + + state.bindTexture( 3553, attachmentProperties.__webglTexture ); + setTextureParameters( 3553, attachment, supportsMips ); + setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, attachment, 36064 + i, 3553 ); + + if ( textureNeedsGenerateMipmaps( attachment, supportsMips ) ) { + + generateMipmap( 3553, attachment, renderTarget.width, renderTarget.height ); + + } + + } + + state.unbindTexture(); + + } else { + + let glTextureType = 3553; + + if ( isRenderTarget3D ) { + + // Render targets containing layers, i.e: Texture 3D and 2d arrays + + if ( isWebGL2 ) { + + const isTexture3D = texture.isDataTexture3D; + glTextureType = isTexture3D ? 32879 : 35866; + + } else { + + console.warn( 'THREE.DataTexture3D and THREE.DataTexture2DArray only supported with WebGL2.' ); + + } + + } + + state.bindTexture( glTextureType, textureProperties.__webglTexture ); + setTextureParameters( glTextureType, texture, supportsMips ); + setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, texture, 36064, glTextureType ); + + if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) { + + generateMipmap( glTextureType, texture, renderTarget.width, renderTarget.height, renderTarget.depth ); + + } + + state.unbindTexture(); + + } + + // Setup depth and stencil buffers + + if ( renderTarget.depthBuffer ) { + + setupDepthRenderbuffer( renderTarget ); + + } + + } + + function updateRenderTargetMipmap( renderTarget ) { + + const supportsMips = isPowerOfTwo$1( renderTarget ) || isWebGL2; + + const textures = renderTarget.isWebGLMultipleRenderTargets === true ? renderTarget.texture : [ renderTarget.texture ]; + + for ( let i = 0, il = textures.length; i < il; i ++ ) { + + const texture = textures[ i ]; + + if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) { + + const target = renderTarget.isWebGLCubeRenderTarget ? 34067 : 3553; + const webglTexture = properties.get( texture ).__webglTexture; + + state.bindTexture( target, webglTexture ); + generateMipmap( target, texture, renderTarget.width, renderTarget.height ); + state.unbindTexture(); + + } + + } + + } + + function updateMultisampleRenderTarget( renderTarget ) { + + if ( renderTarget.isWebGLMultisampleRenderTarget ) { + + if ( isWebGL2 ) { + + const width = renderTarget.width; + const height = renderTarget.height; + let mask = 16384; + + if ( renderTarget.depthBuffer ) mask |= 256; + if ( renderTarget.stencilBuffer ) mask |= 1024; + + const renderTargetProperties = properties.get( renderTarget ); + + state.bindFramebuffer( 36008, renderTargetProperties.__webglMultisampledFramebuffer ); + state.bindFramebuffer( 36009, renderTargetProperties.__webglFramebuffer ); + + _gl.blitFramebuffer( 0, 0, width, height, 0, 0, width, height, mask, 9728 ); + + state.bindFramebuffer( 36008, null ); + state.bindFramebuffer( 36009, renderTargetProperties.__webglMultisampledFramebuffer ); + + } else { + + console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' ); + + } + + } + + } + + function getRenderTargetSamples( renderTarget ) { + + return ( isWebGL2 && renderTarget.isWebGLMultisampleRenderTarget ) ? + Math.min( maxSamples, renderTarget.samples ) : 0; + + } + + function updateVideoTexture( texture ) { + + const frame = info.render.frame; + + // Check the last frame we updated the VideoTexture + + if ( _videoTextures.get( texture ) !== frame ) { + + _videoTextures.set( texture, frame ); + texture.update(); + + } + + } + + // backwards compatibility + + let warnedTexture2D = false; + let warnedTextureCube = false; + + function safeSetTexture2D( texture, slot ) { + + if ( texture && texture.isWebGLRenderTarget ) { + + if ( warnedTexture2D === false ) { + + console.warn( 'THREE.WebGLTextures.safeSetTexture2D: don\'t use render targets as textures. Use their .texture property instead.' ); + warnedTexture2D = true; + + } + + texture = texture.texture; + + } + + setTexture2D( texture, slot ); + + } + + function safeSetTextureCube( texture, slot ) { + + if ( texture && texture.isWebGLCubeRenderTarget ) { + + if ( warnedTextureCube === false ) { + + console.warn( 'THREE.WebGLTextures.safeSetTextureCube: don\'t use cube render targets as textures. Use their .texture property instead.' ); + warnedTextureCube = true; + + } + + texture = texture.texture; + + } + + + setTextureCube( texture, slot ); + + } + + // + + this.allocateTextureUnit = allocateTextureUnit; + this.resetTextureUnits = resetTextureUnits; + + this.setTexture2D = setTexture2D; + this.setTexture2DArray = setTexture2DArray; + this.setTexture3D = setTexture3D; + this.setTextureCube = setTextureCube; + this.setupRenderTarget = setupRenderTarget; + this.updateRenderTargetMipmap = updateRenderTargetMipmap; + this.updateMultisampleRenderTarget = updateMultisampleRenderTarget; + + this.safeSetTexture2D = safeSetTexture2D; + this.safeSetTextureCube = safeSetTextureCube; + +} + +function WebGLUtils( gl, extensions, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + function convert( p ) { + + let extension; + + if ( p === UnsignedByteType ) return 5121; + if ( p === UnsignedShort4444Type ) return 32819; + if ( p === UnsignedShort5551Type ) return 32820; + if ( p === UnsignedShort565Type ) return 33635; + + if ( p === ByteType ) return 5120; + if ( p === ShortType ) return 5122; + if ( p === UnsignedShortType ) return 5123; + if ( p === IntType ) return 5124; + if ( p === UnsignedIntType ) return 5125; + if ( p === FloatType ) return 5126; + + if ( p === HalfFloatType ) { + + if ( isWebGL2 ) return 5131; + + extension = extensions.get( 'OES_texture_half_float' ); + + if ( extension !== null ) { + + return extension.HALF_FLOAT_OES; + + } else { + + return null; + + } + + } + + if ( p === AlphaFormat ) return 6406; + if ( p === RGBFormat ) return 6407; + if ( p === RGBAFormat ) return 6408; + if ( p === LuminanceFormat ) return 6409; + if ( p === LuminanceAlphaFormat ) return 6410; + if ( p === DepthFormat ) return 6402; + if ( p === DepthStencilFormat ) return 34041; + if ( p === RedFormat ) return 6403; + + // WebGL2 formats. + + if ( p === RedIntegerFormat ) return 36244; + if ( p === RGFormat ) return 33319; + if ( p === RGIntegerFormat ) return 33320; + if ( p === RGBIntegerFormat ) return 36248; + if ( p === RGBAIntegerFormat ) return 36249; + + if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || + p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_s3tc' ); + + if ( extension !== null ) { + + if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT; + if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT; + if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT; + if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT; + + } else { + + return null; + + } + + } + + if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || + p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' ); + + if ( extension !== null ) { + + if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG; + if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG; + if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; + if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG; + + } else { + + return null; + + } + + } + + if ( p === RGB_ETC1_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_etc1' ); + + if ( extension !== null ) { + + return extension.COMPRESSED_RGB_ETC1_WEBGL; + + } else { + + return null; + + } + + } + + if ( p === RGB_ETC2_Format || p === RGBA_ETC2_EAC_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_etc' ); + + if ( extension !== null ) { + + if ( p === RGB_ETC2_Format ) return extension.COMPRESSED_RGB8_ETC2; + if ( p === RGBA_ETC2_EAC_Format ) return extension.COMPRESSED_RGBA8_ETC2_EAC; + + } + + } + + if ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format || + p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format || + p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format || + p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format || + p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format || + p === SRGB8_ALPHA8_ASTC_4x4_Format || p === SRGB8_ALPHA8_ASTC_5x4_Format || p === SRGB8_ALPHA8_ASTC_5x5_Format || + p === SRGB8_ALPHA8_ASTC_6x5_Format || p === SRGB8_ALPHA8_ASTC_6x6_Format || p === SRGB8_ALPHA8_ASTC_8x5_Format || + p === SRGB8_ALPHA8_ASTC_8x6_Format || p === SRGB8_ALPHA8_ASTC_8x8_Format || p === SRGB8_ALPHA8_ASTC_10x5_Format || + p === SRGB8_ALPHA8_ASTC_10x6_Format || p === SRGB8_ALPHA8_ASTC_10x8_Format || p === SRGB8_ALPHA8_ASTC_10x10_Format || + p === SRGB8_ALPHA8_ASTC_12x10_Format || p === SRGB8_ALPHA8_ASTC_12x12_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_astc' ); + + if ( extension !== null ) { + + // TODO Complete? + + return p; + + } else { + + return null; + + } + + } + + if ( p === RGBA_BPTC_Format ) { + + extension = extensions.get( 'EXT_texture_compression_bptc' ); + + if ( extension !== null ) { + + // TODO Complete? + + return p; + + } else { + + return null; + + } + + } + + if ( p === UnsignedInt248Type ) { + + if ( isWebGL2 ) return 34042; + + extension = extensions.get( 'WEBGL_depth_texture' ); + + if ( extension !== null ) { + + return extension.UNSIGNED_INT_24_8_WEBGL; + + } else { + + return null; + + } + + } + + } + + return { convert: convert }; + +} + +class ArrayCamera extends PerspectiveCamera { + + constructor( array = [] ) { + + super(); + + this.cameras = array; + + } + +} + +ArrayCamera.prototype.isArrayCamera = true; + +class Group extends Object3D { + + constructor() { + + super(); + + this.type = 'Group'; + + } + +} + +Group.prototype.isGroup = true; + +const _moveEvent = { type: 'move' }; + +class WebXRController { + + constructor() { + + this._targetRay = null; + this._grip = null; + this._hand = null; + + } + + getHandSpace() { + + if ( this._hand === null ) { + + this._hand = new Group(); + this._hand.matrixAutoUpdate = false; + this._hand.visible = false; + + this._hand.joints = {}; + this._hand.inputState = { pinching: false }; + + } + + return this._hand; + + } + + getTargetRaySpace() { + + if ( this._targetRay === null ) { + + this._targetRay = new Group(); + this._targetRay.matrixAutoUpdate = false; + this._targetRay.visible = false; + this._targetRay.hasLinearVelocity = false; + this._targetRay.linearVelocity = new Vector3(); + this._targetRay.hasAngularVelocity = false; + this._targetRay.angularVelocity = new Vector3(); + + } + + return this._targetRay; + + } + + getGripSpace() { + + if ( this._grip === null ) { + + this._grip = new Group(); + this._grip.matrixAutoUpdate = false; + this._grip.visible = false; + this._grip.hasLinearVelocity = false; + this._grip.linearVelocity = new Vector3(); + this._grip.hasAngularVelocity = false; + this._grip.angularVelocity = new Vector3(); + + } + + return this._grip; + + } + + dispatchEvent( event ) { + + if ( this._targetRay !== null ) { + + this._targetRay.dispatchEvent( event ); + + } + + if ( this._grip !== null ) { + + this._grip.dispatchEvent( event ); + + } + + if ( this._hand !== null ) { + + this._hand.dispatchEvent( event ); + + } + + return this; + + } + + disconnect( inputSource ) { + + this.dispatchEvent( { type: 'disconnected', data: inputSource } ); + + if ( this._targetRay !== null ) { + + this._targetRay.visible = false; + + } + + if ( this._grip !== null ) { + + this._grip.visible = false; + + } + + if ( this._hand !== null ) { + + this._hand.visible = false; + + } + + return this; + + } + + update( inputSource, frame, referenceSpace ) { + + let inputPose = null; + let gripPose = null; + let handPose = null; + + const targetRay = this._targetRay; + const grip = this._grip; + const hand = this._hand; + + if ( inputSource && frame.session.visibilityState !== 'visible-blurred' ) { + + if ( targetRay !== null ) { + + inputPose = frame.getPose( inputSource.targetRaySpace, referenceSpace ); + + if ( inputPose !== null ) { + + targetRay.matrix.fromArray( inputPose.transform.matrix ); + targetRay.matrix.decompose( targetRay.position, targetRay.rotation, targetRay.scale ); + + if ( inputPose.linearVelocity ) { + + targetRay.hasLinearVelocity = true; + targetRay.linearVelocity.copy( inputPose.linearVelocity ); + + } else { + + targetRay.hasLinearVelocity = false; + + } + + if ( inputPose.angularVelocity ) { + + targetRay.hasAngularVelocity = true; + targetRay.angularVelocity.copy( inputPose.angularVelocity ); + + } else { + + targetRay.hasAngularVelocity = false; + + } + + this.dispatchEvent( _moveEvent ); + + } + + } + + if ( hand && inputSource.hand ) { + + handPose = true; + + for ( const inputjoint of inputSource.hand.values() ) { + + // Update the joints groups with the XRJoint poses + const jointPose = frame.getJointPose( inputjoint, referenceSpace ); + + if ( hand.joints[ inputjoint.jointName ] === undefined ) { + + // The transform of this joint will be updated with the joint pose on each frame + const joint = new Group(); + joint.matrixAutoUpdate = false; + joint.visible = false; + hand.joints[ inputjoint.jointName ] = joint; + // ?? + hand.add( joint ); + + } + + const joint = hand.joints[ inputjoint.jointName ]; + + if ( jointPose !== null ) { + + joint.matrix.fromArray( jointPose.transform.matrix ); + joint.matrix.decompose( joint.position, joint.rotation, joint.scale ); + joint.jointRadius = jointPose.radius; + + } + + joint.visible = jointPose !== null; + + } + + // Custom events + + // Check pinchz + const indexTip = hand.joints[ 'index-finger-tip' ]; + const thumbTip = hand.joints[ 'thumb-tip' ]; + const distance = indexTip.position.distanceTo( thumbTip.position ); + + const distanceToPinch = 0.02; + const threshold = 0.005; + + if ( hand.inputState.pinching && distance > distanceToPinch + threshold ) { + + hand.inputState.pinching = false; + this.dispatchEvent( { + type: 'pinchend', + handedness: inputSource.handedness, + target: this + } ); + + } else if ( ! hand.inputState.pinching && distance <= distanceToPinch - threshold ) { + + hand.inputState.pinching = true; + this.dispatchEvent( { + type: 'pinchstart', + handedness: inputSource.handedness, + target: this + } ); + + } + + } else { + + if ( grip !== null && inputSource.gripSpace ) { + + gripPose = frame.getPose( inputSource.gripSpace, referenceSpace ); + + if ( gripPose !== null ) { + + grip.matrix.fromArray( gripPose.transform.matrix ); + grip.matrix.decompose( grip.position, grip.rotation, grip.scale ); + + if ( gripPose.linearVelocity ) { + + grip.hasLinearVelocity = true; + grip.linearVelocity.copy( gripPose.linearVelocity ); + + } else { + + grip.hasLinearVelocity = false; + + } + + if ( gripPose.angularVelocity ) { + + grip.hasAngularVelocity = true; + grip.angularVelocity.copy( gripPose.angularVelocity ); + + } else { + + grip.hasAngularVelocity = false; + + } + + } + + } + + } + + } + + if ( targetRay !== null ) { + + targetRay.visible = ( inputPose !== null ); + + } + + if ( grip !== null ) { + + grip.visible = ( gripPose !== null ); + + } + + if ( hand !== null ) { + + hand.visible = ( handPose !== null ); + + } + + return this; + + } + +} + +class WebXRManager extends EventDispatcher { + + constructor( renderer, gl ) { + + super(); + + const scope = this; + const state = renderer.state; + + let session = null; + let framebufferScaleFactor = 1.0; + + let referenceSpace = null; + let referenceSpaceType = 'local-floor'; + + let pose = null; + let glBinding = null; + let glFramebuffer = null; + let glProjLayer = null; + let glBaseLayer = null; + let isMultisample = false; + let glMultisampledFramebuffer = null; + let glColorRenderbuffer = null; + let glDepthRenderbuffer = null; + let xrFrame = null; + let depthStyle = null; + let clearStyle = null; + + const controllers = []; + const inputSourcesMap = new Map(); + + // + + const cameraL = new PerspectiveCamera(); + cameraL.layers.enable( 1 ); + cameraL.viewport = new Vector4(); + + const cameraR = new PerspectiveCamera(); + cameraR.layers.enable( 2 ); + cameraR.viewport = new Vector4(); + + const cameras = [ cameraL, cameraR ]; + + const cameraVR = new ArrayCamera(); + cameraVR.layers.enable( 1 ); + cameraVR.layers.enable( 2 ); + + let _currentDepthNear = null; + let _currentDepthFar = null; + + // + + this.cameraAutoUpdate = true; + this.enabled = false; + + this.isPresenting = false; + + this.getController = function ( index ) { + + let controller = controllers[ index ]; + + if ( controller === undefined ) { + + controller = new WebXRController(); + controllers[ index ] = controller; + + } + + return controller.getTargetRaySpace(); + + }; + + this.getControllerGrip = function ( index ) { + + let controller = controllers[ index ]; + + if ( controller === undefined ) { + + controller = new WebXRController(); + controllers[ index ] = controller; + + } + + return controller.getGripSpace(); + + }; + + this.getHand = function ( index ) { + + let controller = controllers[ index ]; + + if ( controller === undefined ) { + + controller = new WebXRController(); + controllers[ index ] = controller; + + } + + return controller.getHandSpace(); + + }; + + // + + function onSessionEvent( event ) { + + const controller = inputSourcesMap.get( event.inputSource ); + + if ( controller ) { + + controller.dispatchEvent( { type: event.type, data: event.inputSource } ); + + } + + } + + function onSessionEnd() { + + inputSourcesMap.forEach( function ( controller, inputSource ) { + + controller.disconnect( inputSource ); + + } ); + + inputSourcesMap.clear(); + + _currentDepthNear = null; + _currentDepthFar = null; + + // restore framebuffer/rendering state + + state.bindXRFramebuffer( null ); + renderer.setRenderTarget( renderer.getRenderTarget() ); + + if ( glFramebuffer ) gl.deleteFramebuffer( glFramebuffer ); + if ( glMultisampledFramebuffer ) gl.deleteFramebuffer( glMultisampledFramebuffer ); + if ( glColorRenderbuffer ) gl.deleteRenderbuffer( glColorRenderbuffer ); + if ( glDepthRenderbuffer ) gl.deleteRenderbuffer( glDepthRenderbuffer ); + glFramebuffer = null; + glMultisampledFramebuffer = null; + glColorRenderbuffer = null; + glDepthRenderbuffer = null; + glBaseLayer = null; + glProjLayer = null; + glBinding = null; + session = null; + + // + + animation.stop(); + + scope.isPresenting = false; + + scope.dispatchEvent( { type: 'sessionend' } ); + + } + + this.setFramebufferScaleFactor = function ( value ) { + + framebufferScaleFactor = value; + + if ( scope.isPresenting === true ) { + + console.warn( 'THREE.WebXRManager: Cannot change framebuffer scale while presenting.' ); + + } + + }; + + this.setReferenceSpaceType = function ( value ) { + + referenceSpaceType = value; + + if ( scope.isPresenting === true ) { + + console.warn( 'THREE.WebXRManager: Cannot change reference space type while presenting.' ); + + } + + }; + + this.getReferenceSpace = function () { + + return referenceSpace; + + }; + + this.getBaseLayer = function () { + + return glProjLayer !== null ? glProjLayer : glBaseLayer; + + }; + + this.getBinding = function () { + + return glBinding; + + }; + + this.getFrame = function () { + + return xrFrame; + + }; + + this.getSession = function () { + + return session; + + }; + + this.setSession = async function ( value ) { + + session = value; + + if ( session !== null ) { + + session.addEventListener( 'select', onSessionEvent ); + session.addEventListener( 'selectstart', onSessionEvent ); + session.addEventListener( 'selectend', onSessionEvent ); + session.addEventListener( 'squeeze', onSessionEvent ); + session.addEventListener( 'squeezestart', onSessionEvent ); + session.addEventListener( 'squeezeend', onSessionEvent ); + session.addEventListener( 'end', onSessionEnd ); + session.addEventListener( 'inputsourceschange', onInputSourcesChange ); + + const attributes = gl.getContextAttributes(); + + if ( attributes.xrCompatible !== true ) { + + await gl.makeXRCompatible(); + + } + + if ( session.renderState.layers === undefined ) { + + const layerInit = { + antialias: attributes.antialias, + alpha: attributes.alpha, + depth: attributes.depth, + stencil: attributes.stencil, + framebufferScaleFactor: framebufferScaleFactor + }; + + glBaseLayer = new XRWebGLLayer( session, gl, layerInit ); + + session.updateRenderState( { baseLayer: glBaseLayer } ); + + } else if ( gl instanceof WebGLRenderingContext ) { + + // Use old style webgl layer because we can't use MSAA + // WebGL2 support. + + const layerInit = { + antialias: true, + alpha: attributes.alpha, + depth: attributes.depth, + stencil: attributes.stencil, + framebufferScaleFactor: framebufferScaleFactor + }; + + glBaseLayer = new XRWebGLLayer( session, gl, layerInit ); + + session.updateRenderState( { layers: [ glBaseLayer ] } ); + + } else { + + isMultisample = attributes.antialias; + let depthFormat = null; + + + if ( attributes.depth ) { + + clearStyle = 256; + + if ( attributes.stencil ) clearStyle |= 1024; + + depthStyle = attributes.stencil ? 33306 : 36096; + depthFormat = attributes.stencil ? 35056 : 33190; + + } + + const projectionlayerInit = { + colorFormat: attributes.alpha ? 32856 : 32849, + depthFormat: depthFormat, + scaleFactor: framebufferScaleFactor + }; + + glBinding = new XRWebGLBinding( session, gl ); + + glProjLayer = glBinding.createProjectionLayer( projectionlayerInit ); + + glFramebuffer = gl.createFramebuffer(); + + session.updateRenderState( { layers: [ glProjLayer ] } ); + + if ( isMultisample ) { + + glMultisampledFramebuffer = gl.createFramebuffer(); + glColorRenderbuffer = gl.createRenderbuffer(); + gl.bindRenderbuffer( 36161, glColorRenderbuffer ); + gl.renderbufferStorageMultisample( + 36161, + 4, + 32856, + glProjLayer.textureWidth, + glProjLayer.textureHeight ); + state.bindFramebuffer( 36160, glMultisampledFramebuffer ); + gl.framebufferRenderbuffer( 36160, 36064, 36161, glColorRenderbuffer ); + gl.bindRenderbuffer( 36161, null ); + + if ( depthFormat !== null ) { + + glDepthRenderbuffer = gl.createRenderbuffer(); + gl.bindRenderbuffer( 36161, glDepthRenderbuffer ); + gl.renderbufferStorageMultisample( 36161, 4, depthFormat, glProjLayer.textureWidth, glProjLayer.textureHeight ); + gl.framebufferRenderbuffer( 36160, depthStyle, 36161, glDepthRenderbuffer ); + gl.bindRenderbuffer( 36161, null ); + + } + + state.bindFramebuffer( 36160, null ); + + } + + } + + referenceSpace = await session.requestReferenceSpace( referenceSpaceType ); + + animation.setContext( session ); + animation.start(); + + scope.isPresenting = true; + + scope.dispatchEvent( { type: 'sessionstart' } ); + + } + + }; + + function onInputSourcesChange( event ) { + + const inputSources = session.inputSources; + + // Assign inputSources to available controllers + + for ( let i = 0; i < controllers.length; i ++ ) { + + inputSourcesMap.set( inputSources[ i ], controllers[ i ] ); + + } + + // Notify disconnected + + for ( let i = 0; i < event.removed.length; i ++ ) { + + const inputSource = event.removed[ i ]; + const controller = inputSourcesMap.get( inputSource ); + + if ( controller ) { + + controller.dispatchEvent( { type: 'disconnected', data: inputSource } ); + inputSourcesMap.delete( inputSource ); + + } + + } + + // Notify connected + + for ( let i = 0; i < event.added.length; i ++ ) { + + const inputSource = event.added[ i ]; + const controller = inputSourcesMap.get( inputSource ); + + if ( controller ) { + + controller.dispatchEvent( { type: 'connected', data: inputSource } ); + + } + + } + + } + + // + + const cameraLPos = new Vector3(); + const cameraRPos = new Vector3(); + + /** + * Assumes 2 cameras that are parallel and share an X-axis, and that + * the cameras' projection and world matrices have already been set. + * And that near and far planes are identical for both cameras. + * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765 + */ + function setProjectionFromUnion( camera, cameraL, cameraR ) { + + cameraLPos.setFromMatrixPosition( cameraL.matrixWorld ); + cameraRPos.setFromMatrixPosition( cameraR.matrixWorld ); + + const ipd = cameraLPos.distanceTo( cameraRPos ); + + const projL = cameraL.projectionMatrix.elements; + const projR = cameraR.projectionMatrix.elements; + + // VR systems will have identical far and near planes, and + // most likely identical top and bottom frustum extents. + // Use the left camera for these values. + const near = projL[ 14 ] / ( projL[ 10 ] - 1 ); + const far = projL[ 14 ] / ( projL[ 10 ] + 1 ); + const topFov = ( projL[ 9 ] + 1 ) / projL[ 5 ]; + const bottomFov = ( projL[ 9 ] - 1 ) / projL[ 5 ]; + + const leftFov = ( projL[ 8 ] - 1 ) / projL[ 0 ]; + const rightFov = ( projR[ 8 ] + 1 ) / projR[ 0 ]; + const left = near * leftFov; + const right = near * rightFov; + + // Calculate the new camera's position offset from the + // left camera. xOffset should be roughly half `ipd`. + const zOffset = ipd / ( - leftFov + rightFov ); + const xOffset = zOffset * - leftFov; + + // TODO: Better way to apply this offset? + cameraL.matrixWorld.decompose( camera.position, camera.quaternion, camera.scale ); + camera.translateX( xOffset ); + camera.translateZ( zOffset ); + camera.matrixWorld.compose( camera.position, camera.quaternion, camera.scale ); + camera.matrixWorldInverse.copy( camera.matrixWorld ).invert(); + + // Find the union of the frustum values of the cameras and scale + // the values so that the near plane's position does not change in world space, + // although must now be relative to the new union camera. + const near2 = near + zOffset; + const far2 = far + zOffset; + const left2 = left - xOffset; + const right2 = right + ( ipd - xOffset ); + const top2 = topFov * far / far2 * near2; + const bottom2 = bottomFov * far / far2 * near2; + + camera.projectionMatrix.makePerspective( left2, right2, top2, bottom2, near2, far2 ); + + } + + function updateCamera( camera, parent ) { + + if ( parent === null ) { + + camera.matrixWorld.copy( camera.matrix ); + + } else { + + camera.matrixWorld.multiplyMatrices( parent.matrixWorld, camera.matrix ); + + } + + camera.matrixWorldInverse.copy( camera.matrixWorld ).invert(); + + } + + this.updateCamera = function ( camera ) { + + if ( session === null ) return; + + cameraVR.near = cameraR.near = cameraL.near = camera.near; + cameraVR.far = cameraR.far = cameraL.far = camera.far; + + if ( _currentDepthNear !== cameraVR.near || _currentDepthFar !== cameraVR.far ) { + + // Note that the new renderState won't apply until the next frame. See #18320 + + session.updateRenderState( { + depthNear: cameraVR.near, + depthFar: cameraVR.far + } ); + + _currentDepthNear = cameraVR.near; + _currentDepthFar = cameraVR.far; + + } + + const parent = camera.parent; + const cameras = cameraVR.cameras; + + updateCamera( cameraVR, parent ); + + for ( let i = 0; i < cameras.length; i ++ ) { + + updateCamera( cameras[ i ], parent ); + + } + + cameraVR.matrixWorld.decompose( cameraVR.position, cameraVR.quaternion, cameraVR.scale ); + + // update user camera and its children + + camera.position.copy( cameraVR.position ); + camera.quaternion.copy( cameraVR.quaternion ); + camera.scale.copy( cameraVR.scale ); + camera.matrix.copy( cameraVR.matrix ); + camera.matrixWorld.copy( cameraVR.matrixWorld ); + + const children = camera.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].updateMatrixWorld( true ); + + } + + // update projection matrix for proper view frustum culling + + if ( cameras.length === 2 ) { + + setProjectionFromUnion( cameraVR, cameraL, cameraR ); + + } else { + + // assume single camera setup (AR) + + cameraVR.projectionMatrix.copy( cameraL.projectionMatrix ); + + } + + }; + + this.getCamera = function () { + + return cameraVR; + + }; + + this.getFoveation = function () { + + if ( glProjLayer !== null ) { + + return glProjLayer.fixedFoveation; + + } + + if ( glBaseLayer !== null ) { + + return glBaseLayer.fixedFoveation; + + } + + return undefined; + + }; + + this.setFoveation = function ( foveation ) { + + // 0 = no foveation = full resolution + // 1 = maximum foveation = the edges render at lower resolution + + if ( glProjLayer !== null ) { + + glProjLayer.fixedFoveation = foveation; + + } + + if ( glBaseLayer !== null && glBaseLayer.fixedFoveation !== undefined ) { + + glBaseLayer.fixedFoveation = foveation; + + } + + }; + + // Animation Loop + + let onAnimationFrameCallback = null; + + function onAnimationFrame( time, frame ) { + + pose = frame.getViewerPose( referenceSpace ); + xrFrame = frame; + + if ( pose !== null ) { + + const views = pose.views; + + if ( glBaseLayer !== null ) { + + state.bindXRFramebuffer( glBaseLayer.framebuffer ); + + } + + let cameraVRNeedsUpdate = false; + + // check if it's necessary to rebuild cameraVR's camera list + + if ( views.length !== cameraVR.cameras.length ) { + + cameraVR.cameras.length = 0; + + cameraVRNeedsUpdate = true; + + } + + for ( let i = 0; i < views.length; i ++ ) { + + const view = views[ i ]; + + let viewport = null; + + if ( glBaseLayer !== null ) { + + viewport = glBaseLayer.getViewport( view ); + + } else { + + const glSubImage = glBinding.getViewSubImage( glProjLayer, view ); + + state.bindXRFramebuffer( glFramebuffer ); + + if ( glSubImage.depthStencilTexture !== undefined ) { + + gl.framebufferTexture2D( 36160, depthStyle, 3553, glSubImage.depthStencilTexture, 0 ); + + } + + gl.framebufferTexture2D( 36160, 36064, 3553, glSubImage.colorTexture, 0 ); + + viewport = glSubImage.viewport; + + } + + const camera = cameras[ i ]; + + camera.matrix.fromArray( view.transform.matrix ); + camera.projectionMatrix.fromArray( view.projectionMatrix ); + camera.viewport.set( viewport.x, viewport.y, viewport.width, viewport.height ); + + if ( i === 0 ) { + + cameraVR.matrix.copy( camera.matrix ); + + } + + if ( cameraVRNeedsUpdate === true ) { + + cameraVR.cameras.push( camera ); + + } + + } + + if ( isMultisample ) { + + state.bindXRFramebuffer( glMultisampledFramebuffer ); + + if ( clearStyle !== null ) gl.clear( clearStyle ); + + } + + } + + // + + const inputSources = session.inputSources; + + for ( let i = 0; i < controllers.length; i ++ ) { + + const controller = controllers[ i ]; + const inputSource = inputSources[ i ]; + + controller.update( inputSource, frame, referenceSpace ); + + } + + if ( onAnimationFrameCallback ) onAnimationFrameCallback( time, frame ); + + if ( isMultisample ) { + + const width = glProjLayer.textureWidth; + const height = glProjLayer.textureHeight; + + state.bindFramebuffer( 36008, glMultisampledFramebuffer ); + state.bindFramebuffer( 36009, glFramebuffer ); + // Invalidate the depth here to avoid flush of the depth data to main memory. + gl.invalidateFramebuffer( 36008, [ depthStyle ] ); + gl.invalidateFramebuffer( 36009, [ depthStyle ] ); + gl.blitFramebuffer( 0, 0, width, height, 0, 0, width, height, 16384, 9728 ); + // Invalidate the MSAA buffer because it's not needed anymore. + gl.invalidateFramebuffer( 36008, [ 36064 ] ); + state.bindFramebuffer( 36008, null ); + state.bindFramebuffer( 36009, null ); + + state.bindFramebuffer( 36160, glMultisampledFramebuffer ); + + } + + xrFrame = null; + + } + + const animation = new WebGLAnimation(); + + animation.setAnimationLoop( onAnimationFrame ); + + this.setAnimationLoop = function ( callback ) { + + onAnimationFrameCallback = callback; + + }; + + this.dispose = function () {}; + + } + +} + +function WebGLMaterials( properties ) { + + function refreshFogUniforms( uniforms, fog ) { + + uniforms.fogColor.value.copy( fog.color ); + + if ( fog.isFog ) { + + uniforms.fogNear.value = fog.near; + uniforms.fogFar.value = fog.far; + + } else if ( fog.isFogExp2 ) { + + uniforms.fogDensity.value = fog.density; + + } + + } + + function refreshMaterialUniforms( uniforms, material, pixelRatio, height, transmissionRenderTarget ) { + + if ( material.isMeshBasicMaterial ) { + + refreshUniformsCommon( uniforms, material ); + + } else if ( material.isMeshLambertMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsLambert( uniforms, material ); + + } else if ( material.isMeshToonMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsToon( uniforms, material ); + + } else if ( material.isMeshPhongMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsPhong( uniforms, material ); + + } else if ( material.isMeshStandardMaterial ) { + + refreshUniformsCommon( uniforms, material ); + + if ( material.isMeshPhysicalMaterial ) { + + refreshUniformsPhysical( uniforms, material, transmissionRenderTarget ); + + } else { + + refreshUniformsStandard( uniforms, material ); + + } + + } else if ( material.isMeshMatcapMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsMatcap( uniforms, material ); + + } else if ( material.isMeshDepthMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsDepth( uniforms, material ); + + } else if ( material.isMeshDistanceMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsDistance( uniforms, material ); + + } else if ( material.isMeshNormalMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsNormal( uniforms, material ); + + } else if ( material.isLineBasicMaterial ) { + + refreshUniformsLine( uniforms, material ); + + if ( material.isLineDashedMaterial ) { + + refreshUniformsDash( uniforms, material ); + + } + + } else if ( material.isPointsMaterial ) { + + refreshUniformsPoints( uniforms, material, pixelRatio, height ); + + } else if ( material.isSpriteMaterial ) { + + refreshUniformsSprites( uniforms, material ); + + } else if ( material.isShadowMaterial ) { + + uniforms.color.value.copy( material.color ); + uniforms.opacity.value = material.opacity; + + } else if ( material.isShaderMaterial ) { + + material.uniformsNeedUpdate = false; // #15581 + + } + + } + + function refreshUniformsCommon( uniforms, material ) { + + uniforms.opacity.value = material.opacity; + + if ( material.color ) { + + uniforms.diffuse.value.copy( material.color ); + + } + + if ( material.emissive ) { + + uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity ); + + } + + if ( material.map ) { + + uniforms.map.value = material.map; + + } + + if ( material.alphaMap ) { + + uniforms.alphaMap.value = material.alphaMap; + + } + + if ( material.specularMap ) { + + uniforms.specularMap.value = material.specularMap; + + } + + if ( material.alphaTest > 0 ) { + + uniforms.alphaTest.value = material.alphaTest; + + } + + const envMap = properties.get( material ).envMap; + + if ( envMap ) { + + uniforms.envMap.value = envMap; + + uniforms.flipEnvMap.value = ( envMap.isCubeTexture && envMap.isRenderTargetTexture === false ) ? - 1 : 1; + + uniforms.reflectivity.value = material.reflectivity; + uniforms.ior.value = material.ior; + uniforms.refractionRatio.value = material.refractionRatio; + + const maxMipLevel = properties.get( envMap ).__maxMipLevel; + + if ( maxMipLevel !== undefined ) { + + uniforms.maxMipLevel.value = maxMipLevel; + + } + + } + + if ( material.lightMap ) { + + uniforms.lightMap.value = material.lightMap; + uniforms.lightMapIntensity.value = material.lightMapIntensity; + + } + + if ( material.aoMap ) { + + uniforms.aoMap.value = material.aoMap; + uniforms.aoMapIntensity.value = material.aoMapIntensity; + + } + + // uv repeat and offset setting priorities + // 1. color map + // 2. specular map + // 3. displacementMap map + // 4. normal map + // 5. bump map + // 6. roughnessMap map + // 7. metalnessMap map + // 8. alphaMap map + // 9. emissiveMap map + // 10. clearcoat map + // 11. clearcoat normal map + // 12. clearcoat roughnessMap map + // 13. specular intensity map + // 14. specular tint map + // 15. transmission map + // 16. thickness map + + let uvScaleMap; + + if ( material.map ) { + + uvScaleMap = material.map; + + } else if ( material.specularMap ) { + + uvScaleMap = material.specularMap; + + } else if ( material.displacementMap ) { + + uvScaleMap = material.displacementMap; + + } else if ( material.normalMap ) { + + uvScaleMap = material.normalMap; + + } else if ( material.bumpMap ) { + + uvScaleMap = material.bumpMap; + + } else if ( material.roughnessMap ) { + + uvScaleMap = material.roughnessMap; + + } else if ( material.metalnessMap ) { + + uvScaleMap = material.metalnessMap; + + } else if ( material.alphaMap ) { + + uvScaleMap = material.alphaMap; + + } else if ( material.emissiveMap ) { + + uvScaleMap = material.emissiveMap; + + } else if ( material.clearcoatMap ) { + + uvScaleMap = material.clearcoatMap; + + } else if ( material.clearcoatNormalMap ) { + + uvScaleMap = material.clearcoatNormalMap; + + } else if ( material.clearcoatRoughnessMap ) { + + uvScaleMap = material.clearcoatRoughnessMap; + + } else if ( material.specularIntensityMap ) { + + uvScaleMap = material.specularIntensityMap; + + } else if ( material.specularColorMap ) { + + uvScaleMap = material.specularColorMap; + + } else if ( material.transmissionMap ) { + + uvScaleMap = material.transmissionMap; + + } else if ( material.thicknessMap ) { + + uvScaleMap = material.thicknessMap; + + } else if ( material.sheenColorMap ) { + + uvScaleMap = material.sheenColorMap; + + } else if ( material.sheenRoughnessMap ) { + + uvScaleMap = material.sheenRoughnessMap; + + } + + if ( uvScaleMap !== undefined ) { + + // backwards compatibility + if ( uvScaleMap.isWebGLRenderTarget ) { + + uvScaleMap = uvScaleMap.texture; + + } + + if ( uvScaleMap.matrixAutoUpdate === true ) { + + uvScaleMap.updateMatrix(); + + } + + uniforms.uvTransform.value.copy( uvScaleMap.matrix ); + + } + + // uv repeat and offset setting priorities for uv2 + // 1. ao map + // 2. light map + + let uv2ScaleMap; + + if ( material.aoMap ) { + + uv2ScaleMap = material.aoMap; + + } else if ( material.lightMap ) { + + uv2ScaleMap = material.lightMap; + + } + + if ( uv2ScaleMap !== undefined ) { + + // backwards compatibility + if ( uv2ScaleMap.isWebGLRenderTarget ) { + + uv2ScaleMap = uv2ScaleMap.texture; + + } + + if ( uv2ScaleMap.matrixAutoUpdate === true ) { + + uv2ScaleMap.updateMatrix(); + + } + + uniforms.uv2Transform.value.copy( uv2ScaleMap.matrix ); + + } + + } + + function refreshUniformsLine( uniforms, material ) { + + uniforms.diffuse.value.copy( material.color ); + uniforms.opacity.value = material.opacity; + + } + + function refreshUniformsDash( uniforms, material ) { + + uniforms.dashSize.value = material.dashSize; + uniforms.totalSize.value = material.dashSize + material.gapSize; + uniforms.scale.value = material.scale; + + } + + function refreshUniformsPoints( uniforms, material, pixelRatio, height ) { + + uniforms.diffuse.value.copy( material.color ); + uniforms.opacity.value = material.opacity; + uniforms.size.value = material.size * pixelRatio; + uniforms.scale.value = height * 0.5; + + if ( material.map ) { + + uniforms.map.value = material.map; + + } + + if ( material.alphaMap ) { + + uniforms.alphaMap.value = material.alphaMap; + + } + + if ( material.alphaTest > 0 ) { + + uniforms.alphaTest.value = material.alphaTest; + + } + + // uv repeat and offset setting priorities + // 1. color map + // 2. alpha map + + let uvScaleMap; + + if ( material.map ) { + + uvScaleMap = material.map; + + } else if ( material.alphaMap ) { + + uvScaleMap = material.alphaMap; + + } + + if ( uvScaleMap !== undefined ) { + + if ( uvScaleMap.matrixAutoUpdate === true ) { + + uvScaleMap.updateMatrix(); + + } + + uniforms.uvTransform.value.copy( uvScaleMap.matrix ); + + } + + } + + function refreshUniformsSprites( uniforms, material ) { + + uniforms.diffuse.value.copy( material.color ); + uniforms.opacity.value = material.opacity; + uniforms.rotation.value = material.rotation; + + if ( material.map ) { + + uniforms.map.value = material.map; + + } + + if ( material.alphaMap ) { + + uniforms.alphaMap.value = material.alphaMap; + + } + + if ( material.alphaTest > 0 ) { + + uniforms.alphaTest.value = material.alphaTest; + + } + + // uv repeat and offset setting priorities + // 1. color map + // 2. alpha map + + let uvScaleMap; + + if ( material.map ) { + + uvScaleMap = material.map; + + } else if ( material.alphaMap ) { + + uvScaleMap = material.alphaMap; + + } + + if ( uvScaleMap !== undefined ) { + + if ( uvScaleMap.matrixAutoUpdate === true ) { + + uvScaleMap.updateMatrix(); + + } + + uniforms.uvTransform.value.copy( uvScaleMap.matrix ); + + } + + } + + function refreshUniformsLambert( uniforms, material ) { + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + } + + function refreshUniformsPhong( uniforms, material ) { + + uniforms.specular.value.copy( material.specular ); + uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 ) + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + function refreshUniformsToon( uniforms, material ) { + + if ( material.gradientMap ) { + + uniforms.gradientMap.value = material.gradientMap; + + } + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + function refreshUniformsStandard( uniforms, material ) { + + uniforms.roughness.value = material.roughness; + uniforms.metalness.value = material.metalness; + + if ( material.roughnessMap ) { + + uniforms.roughnessMap.value = material.roughnessMap; + + } + + if ( material.metalnessMap ) { + + uniforms.metalnessMap.value = material.metalnessMap; + + } + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + const envMap = properties.get( material ).envMap; + + if ( envMap ) { + + //uniforms.envMap.value = material.envMap; // part of uniforms common + uniforms.envMapIntensity.value = material.envMapIntensity; + + } + + } + + function refreshUniformsPhysical( uniforms, material, transmissionRenderTarget ) { + + refreshUniformsStandard( uniforms, material ); + + uniforms.ior.value = material.ior; // also part of uniforms common + + if ( material.sheen > 0 ) { + + uniforms.sheenColor.value.copy( material.sheenColor ).multiplyScalar( material.sheen ); + + uniforms.sheenRoughness.value = material.sheenRoughness; + + if ( material.sheenColorMap ) { + + uniforms.sheenColorMap.value = material.sheenColorMap; + + } + + if ( material.sheenRoughnessMap ) { + + uniforms.sheenRoughnessMap.value = material.sheenRoughnessMap; + + } + + } + + if ( material.clearcoat > 0 ) { + + uniforms.clearcoat.value = material.clearcoat; + uniforms.clearcoatRoughness.value = material.clearcoatRoughness; + + if ( material.clearcoatMap ) { + + uniforms.clearcoatMap.value = material.clearcoatMap; + + } + + if ( material.clearcoatRoughnessMap ) { + + uniforms.clearcoatRoughnessMap.value = material.clearcoatRoughnessMap; + + } + + if ( material.clearcoatNormalMap ) { + + uniforms.clearcoatNormalScale.value.copy( material.clearcoatNormalScale ); + uniforms.clearcoatNormalMap.value = material.clearcoatNormalMap; + + if ( material.side === BackSide ) { + + uniforms.clearcoatNormalScale.value.negate(); + + } + + } + + } + + if ( material.transmission > 0 ) { + + uniforms.transmission.value = material.transmission; + uniforms.transmissionSamplerMap.value = transmissionRenderTarget.texture; + uniforms.transmissionSamplerSize.value.set( transmissionRenderTarget.width, transmissionRenderTarget.height ); + + if ( material.transmissionMap ) { + + uniforms.transmissionMap.value = material.transmissionMap; + + } + + uniforms.thickness.value = material.thickness; + + if ( material.thicknessMap ) { + + uniforms.thicknessMap.value = material.thicknessMap; + + } + + uniforms.attenuationDistance.value = material.attenuationDistance; + uniforms.attenuationColor.value.copy( material.attenuationColor ); + + } + + uniforms.specularIntensity.value = material.specularIntensity; + uniforms.specularColor.value.copy( material.specularColor ); + + if ( material.specularIntensityMap ) { + + uniforms.specularIntensityMap.value = material.specularIntensityMap; + + } + + if ( material.specularColorMap ) { + + uniforms.specularColorMap.value = material.specularColorMap; + + } + + } + + function refreshUniformsMatcap( uniforms, material ) { + + if ( material.matcap ) { + + uniforms.matcap.value = material.matcap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + function refreshUniformsDepth( uniforms, material ) { + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + function refreshUniformsDistance( uniforms, material ) { + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + uniforms.referencePosition.value.copy( material.referencePosition ); + uniforms.nearDistance.value = material.nearDistance; + uniforms.farDistance.value = material.farDistance; + + } + + function refreshUniformsNormal( uniforms, material ) { + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + return { + refreshFogUniforms: refreshFogUniforms, + refreshMaterialUniforms: refreshMaterialUniforms + }; + +} + +function createCanvasElement() { + + const canvas = createElementNS( 'canvas' ); + canvas.style.display = 'block'; + return canvas; + +} + +function WebGLRenderer( parameters = {} ) { + + const _canvas = parameters.canvas !== undefined ? parameters.canvas : createCanvasElement(), + _context = parameters.context !== undefined ? parameters.context : null, + + _alpha = parameters.alpha !== undefined ? parameters.alpha : false, + _depth = parameters.depth !== undefined ? parameters.depth : true, + _stencil = parameters.stencil !== undefined ? parameters.stencil : true, + _antialias = parameters.antialias !== undefined ? parameters.antialias : false, + _premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true, + _preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false, + _powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default', + _failIfMajorPerformanceCaveat = parameters.failIfMajorPerformanceCaveat !== undefined ? parameters.failIfMajorPerformanceCaveat : false; + + let currentRenderList = null; + let currentRenderState = null; + + // render() can be called from within a callback triggered by another render. + // We track this so that the nested render call gets its list and state isolated from the parent render call. + + const renderListStack = []; + const renderStateStack = []; + + // public properties + + this.domElement = _canvas; + + // Debug configuration container + this.debug = { + + /** + * Enables error checking and reporting when shader programs are being compiled + * @type {boolean} + */ + checkShaderErrors: true + }; + + // clearing + + this.autoClear = true; + this.autoClearColor = true; + this.autoClearDepth = true; + this.autoClearStencil = true; + + // scene graph + + this.sortObjects = true; + + // user-defined clipping + + this.clippingPlanes = []; + this.localClippingEnabled = false; + + // physically based shading + + this.gammaFactor = 2.0; // for backwards compatibility + this.outputEncoding = LinearEncoding; + + // physical lights + + this.physicallyCorrectLights = false; + + // tone mapping + + this.toneMapping = NoToneMapping; + this.toneMappingExposure = 1.0; + + // internal properties + + const _this = this; + + let _isContextLost = false; + + // internal state cache + + let _currentActiveCubeFace = 0; + let _currentActiveMipmapLevel = 0; + let _currentRenderTarget = null; + let _currentMaterialId = - 1; + + let _currentCamera = null; + + const _currentViewport = new Vector4(); + const _currentScissor = new Vector4(); + let _currentScissorTest = null; + + // + + let _width = _canvas.width; + let _height = _canvas.height; + + let _pixelRatio = 1; + let _opaqueSort = null; + let _transparentSort = null; + + const _viewport = new Vector4( 0, 0, _width, _height ); + const _scissor = new Vector4( 0, 0, _width, _height ); + let _scissorTest = false; + + // + + const _currentDrawBuffers = []; + + // frustum + + const _frustum = new Frustum(); + + // clipping + + let _clippingEnabled = false; + let _localClippingEnabled = false; + + // transmission + + let _transmissionRenderTarget = null; + + // camera matrices cache + + const _projScreenMatrix = new Matrix4(); + + const _vector3 = new Vector3(); + + const _emptyScene = { background: null, fog: null, environment: null, overrideMaterial: null, isScene: true }; + + function getTargetPixelRatio() { + + return _currentRenderTarget === null ? _pixelRatio : 1; + + } + + // initialize + + let _gl = _context; + + function getContext( contextNames, contextAttributes ) { + + for ( let i = 0; i < contextNames.length; i ++ ) { + + const contextName = contextNames[ i ]; + const context = _canvas.getContext( contextName, contextAttributes ); + if ( context !== null ) return context; + + } + + return null; + + } + + try { + + const contextAttributes = { + alpha: _alpha, + depth: _depth, + stencil: _stencil, + antialias: _antialias, + premultipliedAlpha: _premultipliedAlpha, + preserveDrawingBuffer: _preserveDrawingBuffer, + powerPreference: _powerPreference, + failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat + }; + + // event listeners must be registered before WebGL context is created, see #12753 + + _canvas.addEventListener( 'webglcontextlost', onContextLost, false ); + _canvas.addEventListener( 'webglcontextrestored', onContextRestore, false ); + + if ( _gl === null ) { + + const contextNames = [ 'webgl2', 'webgl', 'experimental-webgl' ]; + + if ( _this.isWebGL1Renderer === true ) { + + contextNames.shift(); + + } + + _gl = getContext( contextNames, contextAttributes ); + + if ( _gl === null ) { + + if ( getContext( contextNames ) ) { + + throw new Error( 'Error creating WebGL context with your selected attributes.' ); + + } else { + + throw new Error( 'Error creating WebGL context.' ); + + } + + } + + } + + // Some experimental-webgl implementations do not have getShaderPrecisionFormat + + if ( _gl.getShaderPrecisionFormat === undefined ) { + + _gl.getShaderPrecisionFormat = function () { + + return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 }; + + }; + + } + + } catch ( error ) { + + console.error( 'THREE.WebGLRenderer: ' + error.message ); + throw error; + + } + + let extensions, capabilities, state, info; + let properties, textures, cubemaps, cubeuvmaps, attributes, geometries, objects; + let programCache, materials, renderLists, renderStates, clipping, shadowMap; + + let background, morphtargets, bufferRenderer, indexedBufferRenderer; + + let utils, bindingStates; + + function initGLContext() { + + extensions = new WebGLExtensions( _gl ); + + capabilities = new WebGLCapabilities( _gl, extensions, parameters ); + + extensions.init( capabilities ); + + utils = new WebGLUtils( _gl, extensions, capabilities ); + + state = new WebGLState( _gl, extensions, capabilities ); + + _currentDrawBuffers[ 0 ] = 1029; + + info = new WebGLInfo( _gl ); + properties = new WebGLProperties(); + textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ); + cubemaps = new WebGLCubeMaps( _this ); + cubeuvmaps = new WebGLCubeUVMaps( _this ); + attributes = new WebGLAttributes( _gl, capabilities ); + bindingStates = new WebGLBindingStates( _gl, extensions, attributes, capabilities ); + geometries = new WebGLGeometries( _gl, attributes, info, bindingStates ); + objects = new WebGLObjects( _gl, geometries, attributes, info ); + morphtargets = new WebGLMorphtargets( _gl, capabilities, textures ); + clipping = new WebGLClipping( properties ); + programCache = new WebGLPrograms( _this, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping ); + materials = new WebGLMaterials( properties ); + renderLists = new WebGLRenderLists( properties ); + renderStates = new WebGLRenderStates( extensions, capabilities ); + background = new WebGLBackground( _this, cubemaps, state, objects, _premultipliedAlpha ); + shadowMap = new WebGLShadowMap( _this, objects, capabilities ); + + bufferRenderer = new WebGLBufferRenderer( _gl, extensions, info, capabilities ); + indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info, capabilities ); + + info.programs = programCache.programs; + + _this.capabilities = capabilities; + _this.extensions = extensions; + _this.properties = properties; + _this.renderLists = renderLists; + _this.shadowMap = shadowMap; + _this.state = state; + _this.info = info; + + } + + initGLContext(); + + // xr + + const xr = new WebXRManager( _this, _gl ); + + this.xr = xr; + + // API + + this.getContext = function () { + + return _gl; + + }; + + this.getContextAttributes = function () { + + return _gl.getContextAttributes(); + + }; + + this.forceContextLoss = function () { + + const extension = extensions.get( 'WEBGL_lose_context' ); + if ( extension ) extension.loseContext(); + + }; + + this.forceContextRestore = function () { + + const extension = extensions.get( 'WEBGL_lose_context' ); + if ( extension ) extension.restoreContext(); + + }; + + this.getPixelRatio = function () { + + return _pixelRatio; + + }; + + this.setPixelRatio = function ( value ) { + + if ( value === undefined ) return; + + _pixelRatio = value; + + this.setSize( _width, _height, false ); + + }; + + this.getSize = function ( target ) { + + return target.set( _width, _height ); + + }; + + this.setSize = function ( width, height, updateStyle ) { + + if ( xr.isPresenting ) { + + console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' ); + return; + + } + + _width = width; + _height = height; + + _canvas.width = Math.floor( width * _pixelRatio ); + _canvas.height = Math.floor( height * _pixelRatio ); + + if ( updateStyle !== false ) { + + _canvas.style.width = width + 'px'; + _canvas.style.height = height + 'px'; + + } + + this.setViewport( 0, 0, width, height ); + + }; + + this.getDrawingBufferSize = function ( target ) { + + return target.set( _width * _pixelRatio, _height * _pixelRatio ).floor(); + + }; + + this.setDrawingBufferSize = function ( width, height, pixelRatio ) { + + _width = width; + _height = height; + + _pixelRatio = pixelRatio; + + _canvas.width = Math.floor( width * pixelRatio ); + _canvas.height = Math.floor( height * pixelRatio ); + + this.setViewport( 0, 0, width, height ); + + }; + + this.getCurrentViewport = function ( target ) { + + return target.copy( _currentViewport ); + + }; + + this.getViewport = function ( target ) { + + return target.copy( _viewport ); + + }; + + this.setViewport = function ( x, y, width, height ) { + + if ( x.isVector4 ) { + + _viewport.set( x.x, x.y, x.z, x.w ); + + } else { + + _viewport.set( x, y, width, height ); + + } + + state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor() ); + + }; + + this.getScissor = function ( target ) { + + return target.copy( _scissor ); + + }; + + this.setScissor = function ( x, y, width, height ) { + + if ( x.isVector4 ) { + + _scissor.set( x.x, x.y, x.z, x.w ); + + } else { + + _scissor.set( x, y, width, height ); + + } + + state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor() ); + + }; + + this.getScissorTest = function () { + + return _scissorTest; + + }; + + this.setScissorTest = function ( boolean ) { + + state.setScissorTest( _scissorTest = boolean ); + + }; + + this.setOpaqueSort = function ( method ) { + + _opaqueSort = method; + + }; + + this.setTransparentSort = function ( method ) { + + _transparentSort = method; + + }; + + // Clearing + + this.getClearColor = function ( target ) { + + return target.copy( background.getClearColor() ); + + }; + + this.setClearColor = function () { + + background.setClearColor.apply( background, arguments ); + + }; + + this.getClearAlpha = function () { + + return background.getClearAlpha(); + + }; + + this.setClearAlpha = function () { + + background.setClearAlpha.apply( background, arguments ); + + }; + + this.clear = function ( color, depth, stencil ) { + + let bits = 0; + + if ( color === undefined || color ) bits |= 16384; + if ( depth === undefined || depth ) bits |= 256; + if ( stencil === undefined || stencil ) bits |= 1024; + + _gl.clear( bits ); + + }; + + this.clearColor = function () { + + this.clear( true, false, false ); + + }; + + this.clearDepth = function () { + + this.clear( false, true, false ); + + }; + + this.clearStencil = function () { + + this.clear( false, false, true ); + + }; + + // + + this.dispose = function () { + + _canvas.removeEventListener( 'webglcontextlost', onContextLost, false ); + _canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false ); + + renderLists.dispose(); + renderStates.dispose(); + properties.dispose(); + cubemaps.dispose(); + cubeuvmaps.dispose(); + objects.dispose(); + bindingStates.dispose(); + + xr.dispose(); + + xr.removeEventListener( 'sessionstart', onXRSessionStart ); + xr.removeEventListener( 'sessionend', onXRSessionEnd ); + + if ( _transmissionRenderTarget ) { + + _transmissionRenderTarget.dispose(); + _transmissionRenderTarget = null; + + } + + animation.stop(); + + }; + + // Events + + function onContextLost( event ) { + + event.preventDefault(); + + console.log( 'THREE.WebGLRenderer: Context Lost.' ); + + _isContextLost = true; + + } + + function onContextRestore( /* event */ ) { + + console.log( 'THREE.WebGLRenderer: Context Restored.' ); + + _isContextLost = false; + + const infoAutoReset = info.autoReset; + const shadowMapEnabled = shadowMap.enabled; + const shadowMapAutoUpdate = shadowMap.autoUpdate; + const shadowMapNeedsUpdate = shadowMap.needsUpdate; + const shadowMapType = shadowMap.type; + + initGLContext(); + + info.autoReset = infoAutoReset; + shadowMap.enabled = shadowMapEnabled; + shadowMap.autoUpdate = shadowMapAutoUpdate; + shadowMap.needsUpdate = shadowMapNeedsUpdate; + shadowMap.type = shadowMapType; + + } + + function onMaterialDispose( event ) { + + const material = event.target; + + material.removeEventListener( 'dispose', onMaterialDispose ); + + deallocateMaterial( material ); + + } + + // Buffer deallocation + + function deallocateMaterial( material ) { + + releaseMaterialProgramReferences( material ); + + properties.remove( material ); + + } + + + function releaseMaterialProgramReferences( material ) { + + const programs = properties.get( material ).programs; + + if ( programs !== undefined ) { + + programs.forEach( function ( program ) { + + programCache.releaseProgram( program ); + + } ); + + } + + } + + // Buffer rendering + + this.renderBufferDirect = function ( camera, scene, geometry, material, object, group ) { + + if ( scene === null ) scene = _emptyScene; // renderBufferDirect second parameter used to be fog (could be null) + + const frontFaceCW = ( object.isMesh && object.matrixWorld.determinant() < 0 ); + + const program = setProgram( camera, scene, geometry, material, object ); + + state.setMaterial( material, frontFaceCW ); + + // + + let index = geometry.index; + const position = geometry.attributes.position; + + // + + if ( index === null ) { + + if ( position === undefined || position.count === 0 ) return; + + } else if ( index.count === 0 ) { + + return; + + } + + // + + let rangeFactor = 1; + + if ( material.wireframe === true ) { + + index = geometries.getWireframeAttribute( geometry ); + rangeFactor = 2; + + } + + bindingStates.setup( object, material, program, geometry, index ); + + let attribute; + let renderer = bufferRenderer; + + if ( index !== null ) { + + attribute = attributes.get( index ); + + renderer = indexedBufferRenderer; + renderer.setIndex( attribute ); + + } + + // + + const dataCount = ( index !== null ) ? index.count : position.count; + + const rangeStart = geometry.drawRange.start * rangeFactor; + const rangeCount = geometry.drawRange.count * rangeFactor; + + const groupStart = group !== null ? group.start * rangeFactor : 0; + const groupCount = group !== null ? group.count * rangeFactor : Infinity; + + const drawStart = Math.max( rangeStart, groupStart ); + const drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1; + + const drawCount = Math.max( 0, drawEnd - drawStart + 1 ); + + if ( drawCount === 0 ) return; + + // + + if ( object.isMesh ) { + + if ( material.wireframe === true ) { + + state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() ); + renderer.setMode( 1 ); + + } else { + + renderer.setMode( 4 ); + + } + + } else if ( object.isLine ) { + + let lineWidth = material.linewidth; + + if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material + + state.setLineWidth( lineWidth * getTargetPixelRatio() ); + + if ( object.isLineSegments ) { + + renderer.setMode( 1 ); + + } else if ( object.isLineLoop ) { + + renderer.setMode( 2 ); + + } else { + + renderer.setMode( 3 ); + + } + + } else if ( object.isPoints ) { + + renderer.setMode( 0 ); + + } else if ( object.isSprite ) { + + renderer.setMode( 4 ); + + } + + if ( object.isInstancedMesh ) { + + renderer.renderInstances( drawStart, drawCount, object.count ); + + } else if ( geometry.isInstancedBufferGeometry ) { + + const instanceCount = Math.min( geometry.instanceCount, geometry._maxInstanceCount ); + + renderer.renderInstances( drawStart, drawCount, instanceCount ); + + } else { + + renderer.render( drawStart, drawCount ); + + } + + }; + + // Compile + + this.compile = function ( scene, camera ) { + + currentRenderState = renderStates.get( scene ); + currentRenderState.init(); + + renderStateStack.push( currentRenderState ); + + scene.traverseVisible( function ( object ) { + + if ( object.isLight && object.layers.test( camera.layers ) ) { + + currentRenderState.pushLight( object ); + + if ( object.castShadow ) { + + currentRenderState.pushShadow( object ); + + } + + } + + } ); + + currentRenderState.setupLights( _this.physicallyCorrectLights ); + + scene.traverse( function ( object ) { + + const material = object.material; + + if ( material ) { + + if ( Array.isArray( material ) ) { + + for ( let i = 0; i < material.length; i ++ ) { + + const material2 = material[ i ]; + + getProgram( material2, scene, object ); + + } + + } else { + + getProgram( material, scene, object ); + + } + + } + + } ); + + renderStateStack.pop(); + currentRenderState = null; + + }; + + // Animation Loop + + let onAnimationFrameCallback = null; + + function onAnimationFrame( time ) { + + if ( onAnimationFrameCallback ) onAnimationFrameCallback( time ); + + } + + function onXRSessionStart() { + + animation.stop(); + + } + + function onXRSessionEnd() { + + animation.start(); + + } + + const animation = new WebGLAnimation(); + animation.setAnimationLoop( onAnimationFrame ); + + if ( typeof window !== 'undefined' ) animation.setContext( window ); + + this.setAnimationLoop = function ( callback ) { + + onAnimationFrameCallback = callback; + xr.setAnimationLoop( callback ); + + ( callback === null ) ? animation.stop() : animation.start(); + + }; + + xr.addEventListener( 'sessionstart', onXRSessionStart ); + xr.addEventListener( 'sessionend', onXRSessionEnd ); + + // Rendering + + this.render = function ( scene, camera ) { + + if ( camera !== undefined && camera.isCamera !== true ) { + + console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' ); + return; + + } + + if ( _isContextLost === true ) return; + + // update scene graph + + if ( scene.autoUpdate === true ) scene.updateMatrixWorld(); + + // update camera matrices and frustum + + if ( camera.parent === null ) camera.updateMatrixWorld(); + + if ( xr.enabled === true && xr.isPresenting === true ) { + + if ( xr.cameraAutoUpdate === true ) xr.updateCamera( camera ); + + camera = xr.getCamera(); // use XR camera for rendering + + } + + // + if ( scene.isScene === true ) scene.onBeforeRender( _this, scene, camera, _currentRenderTarget ); + + currentRenderState = renderStates.get( scene, renderStateStack.length ); + currentRenderState.init(); + + renderStateStack.push( currentRenderState ); + + _projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse ); + _frustum.setFromProjectionMatrix( _projScreenMatrix ); + + _localClippingEnabled = this.localClippingEnabled; + _clippingEnabled = clipping.init( this.clippingPlanes, _localClippingEnabled, camera ); + + currentRenderList = renderLists.get( scene, renderListStack.length ); + currentRenderList.init(); + + renderListStack.push( currentRenderList ); + + projectObject( scene, camera, 0, _this.sortObjects ); + + currentRenderList.finish(); + + if ( _this.sortObjects === true ) { + + currentRenderList.sort( _opaqueSort, _transparentSort ); + + } + + // + + if ( _clippingEnabled === true ) clipping.beginShadows(); + + const shadowsArray = currentRenderState.state.shadowsArray; + + shadowMap.render( shadowsArray, scene, camera ); + + if ( _clippingEnabled === true ) clipping.endShadows(); + + // + + if ( this.info.autoReset === true ) this.info.reset(); + + // + + background.render( currentRenderList, scene ); + + // render scene + + currentRenderState.setupLights( _this.physicallyCorrectLights ); + + if ( camera.isArrayCamera ) { + + const cameras = camera.cameras; + + for ( let i = 0, l = cameras.length; i < l; i ++ ) { + + const camera2 = cameras[ i ]; + + renderScene( currentRenderList, scene, camera2, camera2.viewport ); + + } + + } else { + + renderScene( currentRenderList, scene, camera ); + + } + + // + + if ( _currentRenderTarget !== null ) { + + // resolve multisample renderbuffers to a single-sample texture if necessary + + textures.updateMultisampleRenderTarget( _currentRenderTarget ); + + // Generate mipmap if we're using any kind of mipmap filtering + + textures.updateRenderTargetMipmap( _currentRenderTarget ); + + } + + // + + if ( scene.isScene === true ) scene.onAfterRender( _this, scene, camera ); + + // Ensure depth buffer writing is enabled so it can be cleared on next render + + state.buffers.depth.setTest( true ); + state.buffers.depth.setMask( true ); + state.buffers.color.setMask( true ); + + state.setPolygonOffset( false ); + + // _gl.finish(); + + bindingStates.resetDefaultState(); + _currentMaterialId = - 1; + _currentCamera = null; + + renderStateStack.pop(); + + if ( renderStateStack.length > 0 ) { + + currentRenderState = renderStateStack[ renderStateStack.length - 1 ]; + + } else { + + currentRenderState = null; + + } + + renderListStack.pop(); + + if ( renderListStack.length > 0 ) { + + currentRenderList = renderListStack[ renderListStack.length - 1 ]; + + } else { + + currentRenderList = null; + + } + + }; + + function projectObject( object, camera, groupOrder, sortObjects ) { + + if ( object.visible === false ) return; + + const visible = object.layers.test( camera.layers ); + + if ( visible ) { + + if ( object.isGroup ) { + + groupOrder = object.renderOrder; + + } else if ( object.isLOD ) { + + if ( object.autoUpdate === true ) object.update( camera ); + + } else if ( object.isLight ) { + + currentRenderState.pushLight( object ); + + if ( object.castShadow ) { + + currentRenderState.pushShadow( object ); + + } + + } else if ( object.isSprite ) { + + if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) { + + if ( sortObjects ) { + + _vector3.setFromMatrixPosition( object.matrixWorld ) + .applyMatrix4( _projScreenMatrix ); + + } + + const geometry = objects.update( object ); + const material = object.material; + + if ( material.visible ) { + + currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null ); + + } + + } + + } else if ( object.isMesh || object.isLine || object.isPoints ) { + + if ( object.isSkinnedMesh ) { + + // update skeleton only once in a frame + + if ( object.skeleton.frame !== info.render.frame ) { + + object.skeleton.update(); + object.skeleton.frame = info.render.frame; + + } + + } + + if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) { + + if ( sortObjects ) { + + _vector3.setFromMatrixPosition( object.matrixWorld ) + .applyMatrix4( _projScreenMatrix ); + + } + + const geometry = objects.update( object ); + const material = object.material; + + if ( Array.isArray( material ) ) { + + const groups = geometry.groups; + + for ( let i = 0, l = groups.length; i < l; i ++ ) { + + const group = groups[ i ]; + const groupMaterial = material[ group.materialIndex ]; + + if ( groupMaterial && groupMaterial.visible ) { + + currentRenderList.push( object, geometry, groupMaterial, groupOrder, _vector3.z, group ); + + } + + } + + } else if ( material.visible ) { + + currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null ); + + } + + } + + } + + } + + const children = object.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + projectObject( children[ i ], camera, groupOrder, sortObjects ); + + } + + } + + function renderScene( currentRenderList, scene, camera, viewport ) { + + const opaqueObjects = currentRenderList.opaque; + const transmissiveObjects = currentRenderList.transmissive; + const transparentObjects = currentRenderList.transparent; + + currentRenderState.setupLightsView( camera ); + + if ( transmissiveObjects.length > 0 ) renderTransmissionPass( opaqueObjects, scene, camera ); + + if ( viewport ) state.viewport( _currentViewport.copy( viewport ) ); + + if ( opaqueObjects.length > 0 ) renderObjects( opaqueObjects, scene, camera ); + if ( transmissiveObjects.length > 0 ) renderObjects( transmissiveObjects, scene, camera ); + if ( transparentObjects.length > 0 ) renderObjects( transparentObjects, scene, camera ); + + } + + function renderTransmissionPass( opaqueObjects, scene, camera ) { + + if ( _transmissionRenderTarget === null ) { + + const needsAntialias = _antialias === true && capabilities.isWebGL2 === true; + const renderTargetType = needsAntialias ? WebGLMultisampleRenderTarget : WebGLRenderTarget; + + _transmissionRenderTarget = new renderTargetType( 1024, 1024, { + generateMipmaps: true, + type: utils.convert( HalfFloatType ) !== null ? HalfFloatType : UnsignedByteType, + minFilter: LinearMipmapLinearFilter, + magFilter: NearestFilter, + wrapS: ClampToEdgeWrapping, + wrapT: ClampToEdgeWrapping + } ); + + } + + const currentRenderTarget = _this.getRenderTarget(); + _this.setRenderTarget( _transmissionRenderTarget ); + _this.clear(); + + // Turn off the features which can affect the frag color for opaque objects pass. + // Otherwise they are applied twice in opaque objects pass and transmission objects pass. + const currentToneMapping = _this.toneMapping; + _this.toneMapping = NoToneMapping; + + renderObjects( opaqueObjects, scene, camera ); + + _this.toneMapping = currentToneMapping; + + textures.updateMultisampleRenderTarget( _transmissionRenderTarget ); + textures.updateRenderTargetMipmap( _transmissionRenderTarget ); + + _this.setRenderTarget( currentRenderTarget ); + + } + + function renderObjects( renderList, scene, camera ) { + + const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null; + + for ( let i = 0, l = renderList.length; i < l; i ++ ) { + + const renderItem = renderList[ i ]; + + const object = renderItem.object; + const geometry = renderItem.geometry; + const material = overrideMaterial === null ? renderItem.material : overrideMaterial; + const group = renderItem.group; + + if ( object.layers.test( camera.layers ) ) { + + renderObject( object, scene, camera, geometry, material, group ); + + } + + } + + } + + function renderObject( object, scene, camera, geometry, material, group ) { + + object.onBeforeRender( _this, scene, camera, geometry, material, group ); + + object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld ); + object.normalMatrix.getNormalMatrix( object.modelViewMatrix ); + + material.onBeforeRender( _this, scene, camera, geometry, object, group ); + + if ( material.transparent === true && material.side === DoubleSide ) { + + material.side = BackSide; + material.needsUpdate = true; + _this.renderBufferDirect( camera, scene, geometry, material, object, group ); + + material.side = FrontSide; + material.needsUpdate = true; + _this.renderBufferDirect( camera, scene, geometry, material, object, group ); + + material.side = DoubleSide; + + } else { + + _this.renderBufferDirect( camera, scene, geometry, material, object, group ); + + } + + object.onAfterRender( _this, scene, camera, geometry, material, group ); + + } + + function getProgram( material, scene, object ) { + + if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ... + + const materialProperties = properties.get( material ); + + const lights = currentRenderState.state.lights; + const shadowsArray = currentRenderState.state.shadowsArray; + + const lightsStateVersion = lights.state.version; + + const parameters = programCache.getParameters( material, lights.state, shadowsArray, scene, object ); + const programCacheKey = programCache.getProgramCacheKey( parameters ); + + let programs = materialProperties.programs; + + // always update environment and fog - changing these trigger an getProgram call, but it's possible that the program doesn't change + + materialProperties.environment = material.isMeshStandardMaterial ? scene.environment : null; + materialProperties.fog = scene.fog; + materialProperties.envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || materialProperties.environment ); + + if ( programs === undefined ) { + + // new material + + material.addEventListener( 'dispose', onMaterialDispose ); + + programs = new Map(); + materialProperties.programs = programs; + + } + + let program = programs.get( programCacheKey ); + + if ( program !== undefined ) { + + // early out if program and light state is identical + + if ( materialProperties.currentProgram === program && materialProperties.lightsStateVersion === lightsStateVersion ) { + + updateCommonMaterialProperties( material, parameters ); + + return program; + + } + + } else { + + parameters.uniforms = programCache.getUniforms( material ); + + material.onBuild( object, parameters, _this ); + + material.onBeforeCompile( parameters, _this ); + + program = programCache.acquireProgram( parameters, programCacheKey ); + programs.set( programCacheKey, program ); + + materialProperties.uniforms = parameters.uniforms; + + } + + const uniforms = materialProperties.uniforms; + + if ( ( ! material.isShaderMaterial && ! material.isRawShaderMaterial ) || material.clipping === true ) { + + uniforms.clippingPlanes = clipping.uniform; + + } + + updateCommonMaterialProperties( material, parameters ); + + // store the light setup it was created for + + materialProperties.needsLights = materialNeedsLights( material ); + materialProperties.lightsStateVersion = lightsStateVersion; + + if ( materialProperties.needsLights ) { + + // wire up the material to this renderer's lighting state + + uniforms.ambientLightColor.value = lights.state.ambient; + uniforms.lightProbe.value = lights.state.probe; + uniforms.directionalLights.value = lights.state.directional; + uniforms.directionalLightShadows.value = lights.state.directionalShadow; + uniforms.spotLights.value = lights.state.spot; + uniforms.spotLightShadows.value = lights.state.spotShadow; + uniforms.rectAreaLights.value = lights.state.rectArea; + uniforms.ltc_1.value = lights.state.rectAreaLTC1; + uniforms.ltc_2.value = lights.state.rectAreaLTC2; + uniforms.pointLights.value = lights.state.point; + uniforms.pointLightShadows.value = lights.state.pointShadow; + uniforms.hemisphereLights.value = lights.state.hemi; + + uniforms.directionalShadowMap.value = lights.state.directionalShadowMap; + uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix; + uniforms.spotShadowMap.value = lights.state.spotShadowMap; + uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix; + uniforms.pointShadowMap.value = lights.state.pointShadowMap; + uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix; + // TODO (abelnation): add area lights shadow info to uniforms + + } + + const progUniforms = program.getUniforms(); + const uniformsList = WebGLUniforms.seqWithValue( progUniforms.seq, uniforms ); + + materialProperties.currentProgram = program; + materialProperties.uniformsList = uniformsList; + + return program; + + } + + function updateCommonMaterialProperties( material, parameters ) { + + const materialProperties = properties.get( material ); + + materialProperties.outputEncoding = parameters.outputEncoding; + materialProperties.instancing = parameters.instancing; + materialProperties.skinning = parameters.skinning; + materialProperties.morphTargets = parameters.morphTargets; + materialProperties.morphNormals = parameters.morphNormals; + materialProperties.morphTargetsCount = parameters.morphTargetsCount; + materialProperties.numClippingPlanes = parameters.numClippingPlanes; + materialProperties.numIntersection = parameters.numClipIntersection; + materialProperties.vertexAlphas = parameters.vertexAlphas; + materialProperties.vertexTangents = parameters.vertexTangents; + + } + + function setProgram( camera, scene, geometry, material, object ) { + + if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ... + + textures.resetTextureUnits(); + + const fog = scene.fog; + const environment = material.isMeshStandardMaterial ? scene.environment : null; + const encoding = ( _currentRenderTarget === null ) ? _this.outputEncoding : _currentRenderTarget.texture.encoding; + const envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || environment ); + const vertexAlphas = material.vertexColors === true && !! geometry.attributes.color && geometry.attributes.color.itemSize === 4; + const vertexTangents = !! material.normalMap && !! geometry.attributes.tangent; + const morphTargets = !! geometry.morphAttributes.position; + const morphNormals = !! geometry.morphAttributes.normal; + const morphTargetsCount = !! geometry.morphAttributes.position ? geometry.morphAttributes.position.length : 0; + + const materialProperties = properties.get( material ); + const lights = currentRenderState.state.lights; + + if ( _clippingEnabled === true ) { + + if ( _localClippingEnabled === true || camera !== _currentCamera ) { + + const useCache = + camera === _currentCamera && + material.id === _currentMaterialId; + + // we might want to call this function with some ClippingGroup + // object instead of the material, once it becomes feasible + // (#8465, #8379) + clipping.setState( material, camera, useCache ); + + } + + } + + // + + let needsProgramChange = false; + + if ( material.version === materialProperties.__version ) { + + if ( materialProperties.needsLights && ( materialProperties.lightsStateVersion !== lights.state.version ) ) { + + needsProgramChange = true; + + } else if ( materialProperties.outputEncoding !== encoding ) { + + needsProgramChange = true; + + } else if ( object.isInstancedMesh && materialProperties.instancing === false ) { + + needsProgramChange = true; + + } else if ( ! object.isInstancedMesh && materialProperties.instancing === true ) { + + needsProgramChange = true; + + } else if ( object.isSkinnedMesh && materialProperties.skinning === false ) { + + needsProgramChange = true; + + } else if ( ! object.isSkinnedMesh && materialProperties.skinning === true ) { + + needsProgramChange = true; + + } else if ( materialProperties.envMap !== envMap ) { + + needsProgramChange = true; + + } else if ( material.fog && materialProperties.fog !== fog ) { + + needsProgramChange = true; + + } else if ( materialProperties.numClippingPlanes !== undefined && + ( materialProperties.numClippingPlanes !== clipping.numPlanes || + materialProperties.numIntersection !== clipping.numIntersection ) ) { + + needsProgramChange = true; + + } else if ( materialProperties.vertexAlphas !== vertexAlphas ) { + + needsProgramChange = true; + + } else if ( materialProperties.vertexTangents !== vertexTangents ) { + + needsProgramChange = true; + + } else if ( materialProperties.morphTargets !== morphTargets ) { + + needsProgramChange = true; + + } else if ( materialProperties.morphNormals !== morphNormals ) { + + needsProgramChange = true; + + } else if ( capabilities.isWebGL2 === true && materialProperties.morphTargetsCount !== morphTargetsCount ) { + + needsProgramChange = true; + + } + + } else { + + needsProgramChange = true; + materialProperties.__version = material.version; + + } + + // + + let program = materialProperties.currentProgram; + + if ( needsProgramChange === true ) { + + program = getProgram( material, scene, object ); + + } + + let refreshProgram = false; + let refreshMaterial = false; + let refreshLights = false; + + const p_uniforms = program.getUniforms(), + m_uniforms = materialProperties.uniforms; + + if ( state.useProgram( program.program ) ) { + + refreshProgram = true; + refreshMaterial = true; + refreshLights = true; + + } + + if ( material.id !== _currentMaterialId ) { + + _currentMaterialId = material.id; + + refreshMaterial = true; + + } + + if ( refreshProgram || _currentCamera !== camera ) { + + p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix ); + + if ( capabilities.logarithmicDepthBuffer ) { + + p_uniforms.setValue( _gl, 'logDepthBufFC', + 2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) ); + + } + + if ( _currentCamera !== camera ) { + + _currentCamera = camera; + + // lighting uniforms depend on the camera so enforce an update + // now, in case this material supports lights - or later, when + // the next material that does gets activated: + + refreshMaterial = true; // set to true on material change + refreshLights = true; // remains set until update done + + } + + // load material specific uniforms + // (shader material also gets them for the sake of genericity) + + if ( material.isShaderMaterial || + material.isMeshPhongMaterial || + material.isMeshToonMaterial || + material.isMeshStandardMaterial || + material.envMap ) { + + const uCamPos = p_uniforms.map.cameraPosition; + + if ( uCamPos !== undefined ) { + + uCamPos.setValue( _gl, + _vector3.setFromMatrixPosition( camera.matrixWorld ) ); + + } + + } + + if ( material.isMeshPhongMaterial || + material.isMeshToonMaterial || + material.isMeshLambertMaterial || + material.isMeshBasicMaterial || + material.isMeshStandardMaterial || + material.isShaderMaterial ) { + + p_uniforms.setValue( _gl, 'isOrthographic', camera.isOrthographicCamera === true ); + + } + + if ( material.isMeshPhongMaterial || + material.isMeshToonMaterial || + material.isMeshLambertMaterial || + material.isMeshBasicMaterial || + material.isMeshStandardMaterial || + material.isShaderMaterial || + material.isShadowMaterial || + object.isSkinnedMesh ) { + + p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse ); + + } + + } + + // skinning and morph target uniforms must be set even if material didn't change + // auto-setting of texture unit for bone and morph texture must go before other textures + // otherwise textures used for skinning and morphing can take over texture units reserved for other material textures + + if ( object.isSkinnedMesh ) { + + p_uniforms.setOptional( _gl, object, 'bindMatrix' ); + p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' ); + + const skeleton = object.skeleton; + + if ( skeleton ) { + + if ( capabilities.floatVertexTextures ) { + + if ( skeleton.boneTexture === null ) skeleton.computeBoneTexture(); + + p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture, textures ); + p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize ); + + } else { + + p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' ); + + } + + } + + } + + if ( !! geometry && ( geometry.morphAttributes.position !== undefined || geometry.morphAttributes.normal !== undefined ) ) { + + morphtargets.update( object, geometry, material, program ); + + } + + + if ( refreshMaterial || materialProperties.receiveShadow !== object.receiveShadow ) { + + materialProperties.receiveShadow = object.receiveShadow; + p_uniforms.setValue( _gl, 'receiveShadow', object.receiveShadow ); + + } + + if ( refreshMaterial ) { + + p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure ); + + if ( materialProperties.needsLights ) { + + // the current material requires lighting info + + // note: all lighting uniforms are always set correctly + // they simply reference the renderer's state for their + // values + // + // use the current material's .needsUpdate flags to set + // the GL state when required + + markUniformsLightsNeedsUpdate( m_uniforms, refreshLights ); + + } + + // refresh uniforms common to several materials + + if ( fog && material.fog ) { + + materials.refreshFogUniforms( m_uniforms, fog ); + + } + + materials.refreshMaterialUniforms( m_uniforms, material, _pixelRatio, _height, _transmissionRenderTarget ); + + WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures ); + + } + + if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) { + + WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures ); + material.uniformsNeedUpdate = false; + + } + + if ( material.isSpriteMaterial ) { + + p_uniforms.setValue( _gl, 'center', object.center ); + + } + + // common matrices + + p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix ); + p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix ); + p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld ); + + return program; + + } + + // If uniforms are marked as clean, they don't need to be loaded to the GPU. + + function markUniformsLightsNeedsUpdate( uniforms, value ) { + + uniforms.ambientLightColor.needsUpdate = value; + uniforms.lightProbe.needsUpdate = value; + + uniforms.directionalLights.needsUpdate = value; + uniforms.directionalLightShadows.needsUpdate = value; + uniforms.pointLights.needsUpdate = value; + uniforms.pointLightShadows.needsUpdate = value; + uniforms.spotLights.needsUpdate = value; + uniforms.spotLightShadows.needsUpdate = value; + uniforms.rectAreaLights.needsUpdate = value; + uniforms.hemisphereLights.needsUpdate = value; + + } + + function materialNeedsLights( material ) { + + return material.isMeshLambertMaterial || material.isMeshToonMaterial || material.isMeshPhongMaterial || + material.isMeshStandardMaterial || material.isShadowMaterial || + ( material.isShaderMaterial && material.lights === true ); + + } + + this.getActiveCubeFace = function () { + + return _currentActiveCubeFace; + + }; + + this.getActiveMipmapLevel = function () { + + return _currentActiveMipmapLevel; + + }; + + this.getRenderTarget = function () { + + return _currentRenderTarget; + + }; + + this.setRenderTarget = function ( renderTarget, activeCubeFace = 0, activeMipmapLevel = 0 ) { + + _currentRenderTarget = renderTarget; + _currentActiveCubeFace = activeCubeFace; + _currentActiveMipmapLevel = activeMipmapLevel; + + if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) { + + textures.setupRenderTarget( renderTarget ); + + } + + let framebuffer = null; + let isCube = false; + let isRenderTarget3D = false; + + if ( renderTarget ) { + + const texture = renderTarget.texture; + + if ( texture.isDataTexture3D || texture.isDataTexture2DArray ) { + + isRenderTarget3D = true; + + } + + const __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer; + + if ( renderTarget.isWebGLCubeRenderTarget ) { + + framebuffer = __webglFramebuffer[ activeCubeFace ]; + isCube = true; + + } else if ( renderTarget.isWebGLMultisampleRenderTarget ) { + + framebuffer = properties.get( renderTarget ).__webglMultisampledFramebuffer; + + } else { + + framebuffer = __webglFramebuffer; + + } + + _currentViewport.copy( renderTarget.viewport ); + _currentScissor.copy( renderTarget.scissor ); + _currentScissorTest = renderTarget.scissorTest; + + } else { + + _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor(); + _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor(); + _currentScissorTest = _scissorTest; + + } + + const framebufferBound = state.bindFramebuffer( 36160, framebuffer ); + + if ( framebufferBound && capabilities.drawBuffers ) { + + let needsUpdate = false; + + if ( renderTarget ) { + + if ( renderTarget.isWebGLMultipleRenderTargets ) { + + const textures = renderTarget.texture; + + if ( _currentDrawBuffers.length !== textures.length || _currentDrawBuffers[ 0 ] !== 36064 ) { + + for ( let i = 0, il = textures.length; i < il; i ++ ) { + + _currentDrawBuffers[ i ] = 36064 + i; + + } + + _currentDrawBuffers.length = textures.length; + + needsUpdate = true; + + } + + } else { + + if ( _currentDrawBuffers.length !== 1 || _currentDrawBuffers[ 0 ] !== 36064 ) { + + _currentDrawBuffers[ 0 ] = 36064; + _currentDrawBuffers.length = 1; + + needsUpdate = true; + + } + + } + + } else { + + if ( _currentDrawBuffers.length !== 1 || _currentDrawBuffers[ 0 ] !== 1029 ) { + + _currentDrawBuffers[ 0 ] = 1029; + _currentDrawBuffers.length = 1; + + needsUpdate = true; + + } + + } + + if ( needsUpdate ) { + + if ( capabilities.isWebGL2 ) { + + _gl.drawBuffers( _currentDrawBuffers ); + + } else { + + extensions.get( 'WEBGL_draw_buffers' ).drawBuffersWEBGL( _currentDrawBuffers ); + + } + + } + + } + + state.viewport( _currentViewport ); + state.scissor( _currentScissor ); + state.setScissorTest( _currentScissorTest ); + + if ( isCube ) { + + const textureProperties = properties.get( renderTarget.texture ); + _gl.framebufferTexture2D( 36160, 36064, 34069 + activeCubeFace, textureProperties.__webglTexture, activeMipmapLevel ); + + } else if ( isRenderTarget3D ) { + + const textureProperties = properties.get( renderTarget.texture ); + const layer = activeCubeFace || 0; + _gl.framebufferTextureLayer( 36160, 36064, textureProperties.__webglTexture, activeMipmapLevel || 0, layer ); + + } + + _currentMaterialId = - 1; // reset current material to ensure correct uniform bindings + + }; + + this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer, activeCubeFaceIndex ) { + + if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' ); + return; + + } + + let framebuffer = properties.get( renderTarget ).__webglFramebuffer; + + if ( renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== undefined ) { + + framebuffer = framebuffer[ activeCubeFaceIndex ]; + + } + + if ( framebuffer ) { + + state.bindFramebuffer( 36160, framebuffer ); + + try { + + const texture = renderTarget.texture; + const textureFormat = texture.format; + const textureType = texture.type; + + if ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( 35739 ) ) { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' ); + return; + + } + + const halfFloatSupportedByExt = ( textureType === HalfFloatType ) && ( extensions.has( 'EXT_color_buffer_half_float' ) || ( capabilities.isWebGL2 && extensions.has( 'EXT_color_buffer_float' ) ) ); + + if ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( 35738 ) && // Edge and Chrome Mac < 52 (#9513) + ! ( textureType === FloatType && ( capabilities.isWebGL2 || extensions.has( 'OES_texture_float' ) || extensions.has( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox + ! halfFloatSupportedByExt ) { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' ); + return; + + } + + if ( _gl.checkFramebufferStatus( 36160 ) === 36053 ) { + + // the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604) + + if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) { + + _gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer ); + + } + + } else { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' ); + + } + + } finally { + + // restore framebuffer of current render target if necessary + + const framebuffer = ( _currentRenderTarget !== null ) ? properties.get( _currentRenderTarget ).__webglFramebuffer : null; + state.bindFramebuffer( 36160, framebuffer ); + + } + + } + + }; + + this.copyFramebufferToTexture = function ( position, texture, level = 0 ) { + + const levelScale = Math.pow( 2, - level ); + const width = Math.floor( texture.image.width * levelScale ); + const height = Math.floor( texture.image.height * levelScale ); + + let glFormat = utils.convert( texture.format ); + + if ( capabilities.isWebGL2 ) { + + // Workaround for https://bugs.chromium.org/p/chromium/issues/detail?id=1120100 + // Not needed in Chrome 93+ + + if ( glFormat === 6407 ) glFormat = 32849; + if ( glFormat === 6408 ) glFormat = 32856; + + } + + textures.setTexture2D( texture, 0 ); + + _gl.copyTexImage2D( 3553, level, glFormat, position.x, position.y, width, height, 0 ); + + state.unbindTexture(); + + }; + + this.copyTextureToTexture = function ( position, srcTexture, dstTexture, level = 0 ) { + + const width = srcTexture.image.width; + const height = srcTexture.image.height; + const glFormat = utils.convert( dstTexture.format ); + const glType = utils.convert( dstTexture.type ); + + textures.setTexture2D( dstTexture, 0 ); + + // As another texture upload may have changed pixelStorei + // parameters, make sure they are correct for the dstTexture + _gl.pixelStorei( 37440, dstTexture.flipY ); + _gl.pixelStorei( 37441, dstTexture.premultiplyAlpha ); + _gl.pixelStorei( 3317, dstTexture.unpackAlignment ); + + if ( srcTexture.isDataTexture ) { + + _gl.texSubImage2D( 3553, level, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data ); + + } else { + + if ( srcTexture.isCompressedTexture ) { + + _gl.compressedTexSubImage2D( 3553, level, position.x, position.y, srcTexture.mipmaps[ 0 ].width, srcTexture.mipmaps[ 0 ].height, glFormat, srcTexture.mipmaps[ 0 ].data ); + + } else { + + _gl.texSubImage2D( 3553, level, position.x, position.y, glFormat, glType, srcTexture.image ); + + } + + } + + // Generate mipmaps only when copying level 0 + if ( level === 0 && dstTexture.generateMipmaps ) _gl.generateMipmap( 3553 ); + + state.unbindTexture(); + + }; + + this.copyTextureToTexture3D = function ( sourceBox, position, srcTexture, dstTexture, level = 0 ) { + + if ( _this.isWebGL1Renderer ) { + + console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.' ); + return; + + } + + const width = sourceBox.max.x - sourceBox.min.x + 1; + const height = sourceBox.max.y - sourceBox.min.y + 1; + const depth = sourceBox.max.z - sourceBox.min.z + 1; + const glFormat = utils.convert( dstTexture.format ); + const glType = utils.convert( dstTexture.type ); + let glTarget; + + if ( dstTexture.isDataTexture3D ) { + + textures.setTexture3D( dstTexture, 0 ); + glTarget = 32879; + + } else if ( dstTexture.isDataTexture2DArray ) { + + textures.setTexture2DArray( dstTexture, 0 ); + glTarget = 35866; + + } else { + + console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.' ); + return; + + } + + _gl.pixelStorei( 37440, dstTexture.flipY ); + _gl.pixelStorei( 37441, dstTexture.premultiplyAlpha ); + _gl.pixelStorei( 3317, dstTexture.unpackAlignment ); + + const unpackRowLen = _gl.getParameter( 3314 ); + const unpackImageHeight = _gl.getParameter( 32878 ); + const unpackSkipPixels = _gl.getParameter( 3316 ); + const unpackSkipRows = _gl.getParameter( 3315 ); + const unpackSkipImages = _gl.getParameter( 32877 ); + + const image = srcTexture.isCompressedTexture ? srcTexture.mipmaps[ 0 ] : srcTexture.image; + + _gl.pixelStorei( 3314, image.width ); + _gl.pixelStorei( 32878, image.height ); + _gl.pixelStorei( 3316, sourceBox.min.x ); + _gl.pixelStorei( 3315, sourceBox.min.y ); + _gl.pixelStorei( 32877, sourceBox.min.z ); + + if ( srcTexture.isDataTexture || srcTexture.isDataTexture3D ) { + + _gl.texSubImage3D( glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, glType, image.data ); + + } else { + + if ( srcTexture.isCompressedTexture ) { + + console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: untested support for compressed srcTexture.' ); + _gl.compressedTexSubImage3D( glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, image.data ); + + } else { + + _gl.texSubImage3D( glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, glType, image ); + + } + + } + + _gl.pixelStorei( 3314, unpackRowLen ); + _gl.pixelStorei( 32878, unpackImageHeight ); + _gl.pixelStorei( 3316, unpackSkipPixels ); + _gl.pixelStorei( 3315, unpackSkipRows ); + _gl.pixelStorei( 32877, unpackSkipImages ); + + // Generate mipmaps only when copying level 0 + if ( level === 0 && dstTexture.generateMipmaps ) _gl.generateMipmap( glTarget ); + + state.unbindTexture(); + + }; + + this.initTexture = function ( texture ) { + + textures.setTexture2D( texture, 0 ); + + state.unbindTexture(); + + }; + + this.resetState = function () { + + _currentActiveCubeFace = 0; + _currentActiveMipmapLevel = 0; + _currentRenderTarget = null; + + state.reset(); + bindingStates.reset(); + + }; + + if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) { + + __THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'observe', { detail: this } ) ); // eslint-disable-line no-undef + + } + +} + +WebGLRenderer.prototype.isWebGLRenderer = true; + +class WebGL1Renderer extends WebGLRenderer {} + +WebGL1Renderer.prototype.isWebGL1Renderer = true; + +class FogExp2 { + + constructor( color, density = 0.00025 ) { + + this.name = ''; + + this.color = new Color( color ); + this.density = density; + + } + + clone() { + + return new FogExp2( this.color, this.density ); + + } + + toJSON( /* meta */ ) { + + return { + type: 'FogExp2', + color: this.color.getHex(), + density: this.density + }; + + } + +} + +FogExp2.prototype.isFogExp2 = true; + +class Fog { + + constructor( color, near = 1, far = 1000 ) { + + this.name = ''; + + this.color = new Color( color ); + + this.near = near; + this.far = far; + + } + + clone() { + + return new Fog( this.color, this.near, this.far ); + + } + + toJSON( /* meta */ ) { + + return { + type: 'Fog', + color: this.color.getHex(), + near: this.near, + far: this.far + }; + + } + +} + +Fog.prototype.isFog = true; + +class Scene extends Object3D { + + constructor() { + + super(); + + this.type = 'Scene'; + + this.background = null; + this.environment = null; + this.fog = null; + + this.overrideMaterial = null; + + this.autoUpdate = true; // checked by the renderer + + if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) { + + __THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'observe', { detail: this } ) ); // eslint-disable-line no-undef + + } + + } + + copy( source, recursive ) { + + super.copy( source, recursive ); + + if ( source.background !== null ) this.background = source.background.clone(); + if ( source.environment !== null ) this.environment = source.environment.clone(); + if ( source.fog !== null ) this.fog = source.fog.clone(); + + if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone(); + + this.autoUpdate = source.autoUpdate; + this.matrixAutoUpdate = source.matrixAutoUpdate; + + return this; + + } + + toJSON( meta ) { + + const data = super.toJSON( meta ); + + if ( this.fog !== null ) data.object.fog = this.fog.toJSON(); + + return data; + + } + +} + +Scene.prototype.isScene = true; + +class InterleavedBuffer { + + constructor( array, stride ) { + + this.array = array; + this.stride = stride; + this.count = array !== undefined ? array.length / stride : 0; + + this.usage = StaticDrawUsage; + this.updateRange = { offset: 0, count: - 1 }; + + this.version = 0; + + this.uuid = generateUUID(); + + } + + onUploadCallback() {} + + set needsUpdate( value ) { + + if ( value === true ) this.version ++; + + } + + setUsage( value ) { + + this.usage = value; + + return this; + + } + + copy( source ) { + + this.array = new source.array.constructor( source.array ); + this.count = source.count; + this.stride = source.stride; + this.usage = source.usage; + + return this; + + } + + copyAt( index1, attribute, index2 ) { + + index1 *= this.stride; + index2 *= attribute.stride; + + for ( let i = 0, l = this.stride; i < l; i ++ ) { + + this.array[ index1 + i ] = attribute.array[ index2 + i ]; + + } + + return this; + + } + + set( value, offset = 0 ) { + + this.array.set( value, offset ); + + return this; + + } + + clone( data ) { + + if ( data.arrayBuffers === undefined ) { + + data.arrayBuffers = {}; + + } + + if ( this.array.buffer._uuid === undefined ) { + + this.array.buffer._uuid = generateUUID(); + + } + + if ( data.arrayBuffers[ this.array.buffer._uuid ] === undefined ) { + + data.arrayBuffers[ this.array.buffer._uuid ] = this.array.slice( 0 ).buffer; + + } + + const array = new this.array.constructor( data.arrayBuffers[ this.array.buffer._uuid ] ); + + const ib = new this.constructor( array, this.stride ); + ib.setUsage( this.usage ); + + return ib; + + } + + onUpload( callback ) { + + this.onUploadCallback = callback; + + return this; + + } + + toJSON( data ) { + + if ( data.arrayBuffers === undefined ) { + + data.arrayBuffers = {}; + + } + + // generate UUID for array buffer if necessary + + if ( this.array.buffer._uuid === undefined ) { + + this.array.buffer._uuid = generateUUID(); + + } + + if ( data.arrayBuffers[ this.array.buffer._uuid ] === undefined ) { + + data.arrayBuffers[ this.array.buffer._uuid ] = Array.prototype.slice.call( new Uint32Array( this.array.buffer ) ); + + } + + // + + return { + uuid: this.uuid, + buffer: this.array.buffer._uuid, + type: this.array.constructor.name, + stride: this.stride + }; + + } + +} + +InterleavedBuffer.prototype.isInterleavedBuffer = true; + +const _vector$6 = /*@__PURE__*/ new Vector3(); + +class InterleavedBufferAttribute { + + constructor( interleavedBuffer, itemSize, offset, normalized = false ) { + + this.name = ''; + + this.data = interleavedBuffer; + this.itemSize = itemSize; + this.offset = offset; + + this.normalized = normalized === true; + + } + + get count() { + + return this.data.count; + + } + + get array() { + + return this.data.array; + + } + + set needsUpdate( value ) { + + this.data.needsUpdate = value; + + } + + applyMatrix4( m ) { + + for ( let i = 0, l = this.data.count; i < l; i ++ ) { + + _vector$6.x = this.getX( i ); + _vector$6.y = this.getY( i ); + _vector$6.z = this.getZ( i ); + + _vector$6.applyMatrix4( m ); + + this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z ); + + } + + return this; + + } + + applyNormalMatrix( m ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$6.x = this.getX( i ); + _vector$6.y = this.getY( i ); + _vector$6.z = this.getZ( i ); + + _vector$6.applyNormalMatrix( m ); + + this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z ); + + } + + return this; + + } + + transformDirection( m ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$6.x = this.getX( i ); + _vector$6.y = this.getY( i ); + _vector$6.z = this.getZ( i ); + + _vector$6.transformDirection( m ); + + this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z ); + + } + + return this; + + } + + setX( index, x ) { + + this.data.array[ index * this.data.stride + this.offset ] = x; + + return this; + + } + + setY( index, y ) { + + this.data.array[ index * this.data.stride + this.offset + 1 ] = y; + + return this; + + } + + setZ( index, z ) { + + this.data.array[ index * this.data.stride + this.offset + 2 ] = z; + + return this; + + } + + setW( index, w ) { + + this.data.array[ index * this.data.stride + this.offset + 3 ] = w; + + return this; + + } + + getX( index ) { + + return this.data.array[ index * this.data.stride + this.offset ]; + + } + + getY( index ) { + + return this.data.array[ index * this.data.stride + this.offset + 1 ]; + + } + + getZ( index ) { + + return this.data.array[ index * this.data.stride + this.offset + 2 ]; + + } + + getW( index ) { + + return this.data.array[ index * this.data.stride + this.offset + 3 ]; + + } + + setXY( index, x, y ) { + + index = index * this.data.stride + this.offset; + + this.data.array[ index + 0 ] = x; + this.data.array[ index + 1 ] = y; + + return this; + + } + + setXYZ( index, x, y, z ) { + + index = index * this.data.stride + this.offset; + + this.data.array[ index + 0 ] = x; + this.data.array[ index + 1 ] = y; + this.data.array[ index + 2 ] = z; + + return this; + + } + + setXYZW( index, x, y, z, w ) { + + index = index * this.data.stride + this.offset; + + this.data.array[ index + 0 ] = x; + this.data.array[ index + 1 ] = y; + this.data.array[ index + 2 ] = z; + this.data.array[ index + 3 ] = w; + + return this; + + } + + clone( data ) { + + if ( data === undefined ) { + + console.log( 'THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.' ); + + const array = []; + + for ( let i = 0; i < this.count; i ++ ) { + + const index = i * this.data.stride + this.offset; + + for ( let j = 0; j < this.itemSize; j ++ ) { + + array.push( this.data.array[ index + j ] ); + + } + + } + + return new BufferAttribute( new this.array.constructor( array ), this.itemSize, this.normalized ); + + } else { + + if ( data.interleavedBuffers === undefined ) { + + data.interleavedBuffers = {}; + + } + + if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) { + + data.interleavedBuffers[ this.data.uuid ] = this.data.clone( data ); + + } + + return new InterleavedBufferAttribute( data.interleavedBuffers[ this.data.uuid ], this.itemSize, this.offset, this.normalized ); + + } + + } + + toJSON( data ) { + + if ( data === undefined ) { + + console.log( 'THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.' ); + + const array = []; + + for ( let i = 0; i < this.count; i ++ ) { + + const index = i * this.data.stride + this.offset; + + for ( let j = 0; j < this.itemSize; j ++ ) { + + array.push( this.data.array[ index + j ] ); + + } + + } + + // deinterleave data and save it as an ordinary buffer attribute for now + + return { + itemSize: this.itemSize, + type: this.array.constructor.name, + array: array, + normalized: this.normalized + }; + + } else { + + // save as true interlaved attribtue + + if ( data.interleavedBuffers === undefined ) { + + data.interleavedBuffers = {}; + + } + + if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) { + + data.interleavedBuffers[ this.data.uuid ] = this.data.toJSON( data ); + + } + + return { + isInterleavedBufferAttribute: true, + itemSize: this.itemSize, + data: this.data.uuid, + offset: this.offset, + normalized: this.normalized + }; + + } + + } + +} + +InterleavedBufferAttribute.prototype.isInterleavedBufferAttribute = true; + +/** + * parameters = { + * color: , + * map: new THREE.Texture( ), + * alphaMap: new THREE.Texture( ), + * rotation: , + * sizeAttenuation: + * } + */ + +class SpriteMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'SpriteMaterial'; + + this.color = new Color( 0xffffff ); + + this.map = null; + + this.alphaMap = null; + + this.rotation = 0; + + this.sizeAttenuation = true; + + this.transparent = true; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.alphaMap = source.alphaMap; + + this.rotation = source.rotation; + + this.sizeAttenuation = source.sizeAttenuation; + + return this; + + } + +} + +SpriteMaterial.prototype.isSpriteMaterial = true; + +let _geometry; + +const _intersectPoint = /*@__PURE__*/ new Vector3(); +const _worldScale = /*@__PURE__*/ new Vector3(); +const _mvPosition = /*@__PURE__*/ new Vector3(); + +const _alignedPosition = /*@__PURE__*/ new Vector2(); +const _rotatedPosition = /*@__PURE__*/ new Vector2(); +const _viewWorldMatrix = /*@__PURE__*/ new Matrix4(); + +const _vA = /*@__PURE__*/ new Vector3(); +const _vB = /*@__PURE__*/ new Vector3(); +const _vC = /*@__PURE__*/ new Vector3(); + +const _uvA = /*@__PURE__*/ new Vector2(); +const _uvB = /*@__PURE__*/ new Vector2(); +const _uvC = /*@__PURE__*/ new Vector2(); + +class Sprite extends Object3D { + + constructor( material ) { + + super(); + + this.type = 'Sprite'; + + if ( _geometry === undefined ) { + + _geometry = new BufferGeometry(); + + const float32Array = new Float32Array( [ + - 0.5, - 0.5, 0, 0, 0, + 0.5, - 0.5, 0, 1, 0, + 0.5, 0.5, 0, 1, 1, + - 0.5, 0.5, 0, 0, 1 + ] ); + + const interleavedBuffer = new InterleavedBuffer( float32Array, 5 ); + + _geometry.setIndex( [ 0, 1, 2, 0, 2, 3 ] ); + _geometry.setAttribute( 'position', new InterleavedBufferAttribute( interleavedBuffer, 3, 0, false ) ); + _geometry.setAttribute( 'uv', new InterleavedBufferAttribute( interleavedBuffer, 2, 3, false ) ); + + } + + this.geometry = _geometry; + this.material = ( material !== undefined ) ? material : new SpriteMaterial(); + + this.center = new Vector2( 0.5, 0.5 ); + + } + + raycast( raycaster, intersects ) { + + if ( raycaster.camera === null ) { + + console.error( 'THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.' ); + + } + + _worldScale.setFromMatrixScale( this.matrixWorld ); + + _viewWorldMatrix.copy( raycaster.camera.matrixWorld ); + this.modelViewMatrix.multiplyMatrices( raycaster.camera.matrixWorldInverse, this.matrixWorld ); + + _mvPosition.setFromMatrixPosition( this.modelViewMatrix ); + + if ( raycaster.camera.isPerspectiveCamera && this.material.sizeAttenuation === false ) { + + _worldScale.multiplyScalar( - _mvPosition.z ); + + } + + const rotation = this.material.rotation; + let sin, cos; + + if ( rotation !== 0 ) { + + cos = Math.cos( rotation ); + sin = Math.sin( rotation ); + + } + + const center = this.center; + + transformVertex( _vA.set( - 0.5, - 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos ); + transformVertex( _vB.set( 0.5, - 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos ); + transformVertex( _vC.set( 0.5, 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos ); + + _uvA.set( 0, 0 ); + _uvB.set( 1, 0 ); + _uvC.set( 1, 1 ); + + // check first triangle + let intersect = raycaster.ray.intersectTriangle( _vA, _vB, _vC, false, _intersectPoint ); + + if ( intersect === null ) { + + // check second triangle + transformVertex( _vB.set( - 0.5, 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos ); + _uvB.set( 0, 1 ); + + intersect = raycaster.ray.intersectTriangle( _vA, _vC, _vB, false, _intersectPoint ); + if ( intersect === null ) { + + return; + + } + + } + + const distance = raycaster.ray.origin.distanceTo( _intersectPoint ); + + if ( distance < raycaster.near || distance > raycaster.far ) return; + + intersects.push( { + + distance: distance, + point: _intersectPoint.clone(), + uv: Triangle.getUV( _intersectPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2() ), + face: null, + object: this + + } ); + + } + + copy( source ) { + + super.copy( source ); + + if ( source.center !== undefined ) this.center.copy( source.center ); + + this.material = source.material; + + return this; + + } + +} + +Sprite.prototype.isSprite = true; + +function transformVertex( vertexPosition, mvPosition, center, scale, sin, cos ) { + + // compute position in camera space + _alignedPosition.subVectors( vertexPosition, center ).addScalar( 0.5 ).multiply( scale ); + + // to check if rotation is not zero + if ( sin !== undefined ) { + + _rotatedPosition.x = ( cos * _alignedPosition.x ) - ( sin * _alignedPosition.y ); + _rotatedPosition.y = ( sin * _alignedPosition.x ) + ( cos * _alignedPosition.y ); + + } else { + + _rotatedPosition.copy( _alignedPosition ); + + } + + + vertexPosition.copy( mvPosition ); + vertexPosition.x += _rotatedPosition.x; + vertexPosition.y += _rotatedPosition.y; + + // transform to world space + vertexPosition.applyMatrix4( _viewWorldMatrix ); + +} + +const _v1$2 = /*@__PURE__*/ new Vector3(); +const _v2$1 = /*@__PURE__*/ new Vector3(); + +class LOD extends Object3D { + + constructor() { + + super(); + + this._currentLevel = 0; + + this.type = 'LOD'; + + Object.defineProperties( this, { + levels: { + enumerable: true, + value: [] + }, + isLOD: { + value: true, + } + } ); + + this.autoUpdate = true; + + } + + copy( source ) { + + super.copy( source, false ); + + const levels = source.levels; + + for ( let i = 0, l = levels.length; i < l; i ++ ) { + + const level = levels[ i ]; + + this.addLevel( level.object.clone(), level.distance ); + + } + + this.autoUpdate = source.autoUpdate; + + return this; + + } + + addLevel( object, distance = 0 ) { + + distance = Math.abs( distance ); + + const levels = this.levels; + + let l; + + for ( l = 0; l < levels.length; l ++ ) { + + if ( distance < levels[ l ].distance ) { + + break; + + } + + } + + levels.splice( l, 0, { distance: distance, object: object } ); + + this.add( object ); + + return this; + + } + + getCurrentLevel() { + + return this._currentLevel; + + } + + getObjectForDistance( distance ) { + + const levels = this.levels; + + if ( levels.length > 0 ) { + + let i, l; + + for ( i = 1, l = levels.length; i < l; i ++ ) { + + if ( distance < levels[ i ].distance ) { + + break; + + } + + } + + return levels[ i - 1 ].object; + + } + + return null; + + } + + raycast( raycaster, intersects ) { + + const levels = this.levels; + + if ( levels.length > 0 ) { + + _v1$2.setFromMatrixPosition( this.matrixWorld ); + + const distance = raycaster.ray.origin.distanceTo( _v1$2 ); + + this.getObjectForDistance( distance ).raycast( raycaster, intersects ); + + } + + } + + update( camera ) { + + const levels = this.levels; + + if ( levels.length > 1 ) { + + _v1$2.setFromMatrixPosition( camera.matrixWorld ); + _v2$1.setFromMatrixPosition( this.matrixWorld ); + + const distance = _v1$2.distanceTo( _v2$1 ) / camera.zoom; + + levels[ 0 ].object.visible = true; + + let i, l; + + for ( i = 1, l = levels.length; i < l; i ++ ) { + + if ( distance >= levels[ i ].distance ) { + + levels[ i - 1 ].object.visible = false; + levels[ i ].object.visible = true; + + } else { + + break; + + } + + } + + this._currentLevel = i - 1; + + for ( ; i < l; i ++ ) { + + levels[ i ].object.visible = false; + + } + + } + + } + + toJSON( meta ) { + + const data = super.toJSON( meta ); + + if ( this.autoUpdate === false ) data.object.autoUpdate = false; + + data.object.levels = []; + + const levels = this.levels; + + for ( let i = 0, l = levels.length; i < l; i ++ ) { + + const level = levels[ i ]; + + data.object.levels.push( { + object: level.object.uuid, + distance: level.distance + } ); + + } + + return data; + + } + +} + +const _basePosition = /*@__PURE__*/ new Vector3(); + +const _skinIndex = /*@__PURE__*/ new Vector4(); +const _skinWeight = /*@__PURE__*/ new Vector4(); + +const _vector$5 = /*@__PURE__*/ new Vector3(); +const _matrix = /*@__PURE__*/ new Matrix4(); + +class SkinnedMesh extends Mesh { + + constructor( geometry, material ) { + + super( geometry, material ); + + this.type = 'SkinnedMesh'; + + this.bindMode = 'attached'; + this.bindMatrix = new Matrix4(); + this.bindMatrixInverse = new Matrix4(); + + } + + copy( source ) { + + super.copy( source ); + + this.bindMode = source.bindMode; + this.bindMatrix.copy( source.bindMatrix ); + this.bindMatrixInverse.copy( source.bindMatrixInverse ); + + this.skeleton = source.skeleton; + + return this; + + } + + bind( skeleton, bindMatrix ) { + + this.skeleton = skeleton; + + if ( bindMatrix === undefined ) { + + this.updateMatrixWorld( true ); + + this.skeleton.calculateInverses(); + + bindMatrix = this.matrixWorld; + + } + + this.bindMatrix.copy( bindMatrix ); + this.bindMatrixInverse.copy( bindMatrix ).invert(); + + } + + pose() { + + this.skeleton.pose(); + + } + + normalizeSkinWeights() { + + const vector = new Vector4(); + + const skinWeight = this.geometry.attributes.skinWeight; + + for ( let i = 0, l = skinWeight.count; i < l; i ++ ) { + + vector.x = skinWeight.getX( i ); + vector.y = skinWeight.getY( i ); + vector.z = skinWeight.getZ( i ); + vector.w = skinWeight.getW( i ); + + const scale = 1.0 / vector.manhattanLength(); + + if ( scale !== Infinity ) { + + vector.multiplyScalar( scale ); + + } else { + + vector.set( 1, 0, 0, 0 ); // do something reasonable + + } + + skinWeight.setXYZW( i, vector.x, vector.y, vector.z, vector.w ); + + } + + } + + updateMatrixWorld( force ) { + + super.updateMatrixWorld( force ); + + if ( this.bindMode === 'attached' ) { + + this.bindMatrixInverse.copy( this.matrixWorld ).invert(); + + } else if ( this.bindMode === 'detached' ) { + + this.bindMatrixInverse.copy( this.bindMatrix ).invert(); + + } else { + + console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode ); + + } + + } + + boneTransform( index, target ) { + + const skeleton = this.skeleton; + const geometry = this.geometry; + + _skinIndex.fromBufferAttribute( geometry.attributes.skinIndex, index ); + _skinWeight.fromBufferAttribute( geometry.attributes.skinWeight, index ); + + _basePosition.copy( target ).applyMatrix4( this.bindMatrix ); + + target.set( 0, 0, 0 ); + + for ( let i = 0; i < 4; i ++ ) { + + const weight = _skinWeight.getComponent( i ); + + if ( weight !== 0 ) { + + const boneIndex = _skinIndex.getComponent( i ); + + _matrix.multiplyMatrices( skeleton.bones[ boneIndex ].matrixWorld, skeleton.boneInverses[ boneIndex ] ); + + target.addScaledVector( _vector$5.copy( _basePosition ).applyMatrix4( _matrix ), weight ); + + } + + } + + return target.applyMatrix4( this.bindMatrixInverse ); + + } + +} + +SkinnedMesh.prototype.isSkinnedMesh = true; + +class Bone extends Object3D { + + constructor() { + + super(); + + this.type = 'Bone'; + + } + +} + +Bone.prototype.isBone = true; + +class DataTexture extends Texture { + + constructor( data = null, width = 1, height = 1, format, type, mapping, wrapS, wrapT, magFilter = NearestFilter, minFilter = NearestFilter, anisotropy, encoding ) { + + super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ); + + this.image = { data: data, width: width, height: height }; + + this.magFilter = magFilter; + this.minFilter = minFilter; + + this.generateMipmaps = false; + this.flipY = false; + this.unpackAlignment = 1; + + this.needsUpdate = true; + + } + +} + +DataTexture.prototype.isDataTexture = true; + +const _offsetMatrix = /*@__PURE__*/ new Matrix4(); +const _identityMatrix = /*@__PURE__*/ new Matrix4(); + +class Skeleton { + + constructor( bones = [], boneInverses = [] ) { + + this.uuid = generateUUID(); + + this.bones = bones.slice( 0 ); + this.boneInverses = boneInverses; + this.boneMatrices = null; + + this.boneTexture = null; + this.boneTextureSize = 0; + + this.frame = - 1; + + this.init(); + + } + + init() { + + const bones = this.bones; + const boneInverses = this.boneInverses; + + this.boneMatrices = new Float32Array( bones.length * 16 ); + + // calculate inverse bone matrices if necessary + + if ( boneInverses.length === 0 ) { + + this.calculateInverses(); + + } else { + + // handle special case + + if ( bones.length !== boneInverses.length ) { + + console.warn( 'THREE.Skeleton: Number of inverse bone matrices does not match amount of bones.' ); + + this.boneInverses = []; + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + this.boneInverses.push( new Matrix4() ); + + } + + } + + } + + } + + calculateInverses() { + + this.boneInverses.length = 0; + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + const inverse = new Matrix4(); + + if ( this.bones[ i ] ) { + + inverse.copy( this.bones[ i ].matrixWorld ).invert(); + + } + + this.boneInverses.push( inverse ); + + } + + } + + pose() { + + // recover the bind-time world matrices + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + const bone = this.bones[ i ]; + + if ( bone ) { + + bone.matrixWorld.copy( this.boneInverses[ i ] ).invert(); + + } + + } + + // compute the local matrices, positions, rotations and scales + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + const bone = this.bones[ i ]; + + if ( bone ) { + + if ( bone.parent && bone.parent.isBone ) { + + bone.matrix.copy( bone.parent.matrixWorld ).invert(); + bone.matrix.multiply( bone.matrixWorld ); + + } else { + + bone.matrix.copy( bone.matrixWorld ); + + } + + bone.matrix.decompose( bone.position, bone.quaternion, bone.scale ); + + } + + } + + } + + update() { + + const bones = this.bones; + const boneInverses = this.boneInverses; + const boneMatrices = this.boneMatrices; + const boneTexture = this.boneTexture; + + // flatten bone matrices to array + + for ( let i = 0, il = bones.length; i < il; i ++ ) { + + // compute the offset between the current and the original transform + + const matrix = bones[ i ] ? bones[ i ].matrixWorld : _identityMatrix; + + _offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] ); + _offsetMatrix.toArray( boneMatrices, i * 16 ); + + } + + if ( boneTexture !== null ) { + + boneTexture.needsUpdate = true; + + } + + } + + clone() { + + return new Skeleton( this.bones, this.boneInverses ); + + } + + computeBoneTexture() { + + // layout (1 matrix = 4 pixels) + // RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4) + // with 8x8 pixel texture max 16 bones * 4 pixels = (8 * 8) + // 16x16 pixel texture max 64 bones * 4 pixels = (16 * 16) + // 32x32 pixel texture max 256 bones * 4 pixels = (32 * 32) + // 64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64) + + let size = Math.sqrt( this.bones.length * 4 ); // 4 pixels needed for 1 matrix + size = ceilPowerOfTwo( size ); + size = Math.max( size, 4 ); + + const boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel + boneMatrices.set( this.boneMatrices ); // copy current values + + const boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType ); + + this.boneMatrices = boneMatrices; + this.boneTexture = boneTexture; + this.boneTextureSize = size; + + return this; + + } + + getBoneByName( name ) { + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + const bone = this.bones[ i ]; + + if ( bone.name === name ) { + + return bone; + + } + + } + + return undefined; + + } + + dispose( ) { + + if ( this.boneTexture !== null ) { + + this.boneTexture.dispose(); + + this.boneTexture = null; + + } + + } + + fromJSON( json, bones ) { + + this.uuid = json.uuid; + + for ( let i = 0, l = json.bones.length; i < l; i ++ ) { + + const uuid = json.bones[ i ]; + let bone = bones[ uuid ]; + + if ( bone === undefined ) { + + console.warn( 'THREE.Skeleton: No bone found with UUID:', uuid ); + bone = new Bone(); + + } + + this.bones.push( bone ); + this.boneInverses.push( new Matrix4().fromArray( json.boneInverses[ i ] ) ); + + } + + this.init(); + + return this; + + } + + toJSON() { + + const data = { + metadata: { + version: 4.5, + type: 'Skeleton', + generator: 'Skeleton.toJSON' + }, + bones: [], + boneInverses: [] + }; + + data.uuid = this.uuid; + + const bones = this.bones; + const boneInverses = this.boneInverses; + + for ( let i = 0, l = bones.length; i < l; i ++ ) { + + const bone = bones[ i ]; + data.bones.push( bone.uuid ); + + const boneInverse = boneInverses[ i ]; + data.boneInverses.push( boneInverse.toArray() ); + + } + + return data; + + } + +} + +class InstancedBufferAttribute extends BufferAttribute { + + constructor( array, itemSize, normalized, meshPerAttribute = 1 ) { + + if ( typeof normalized === 'number' ) { + + meshPerAttribute = normalized; + + normalized = false; + + console.error( 'THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.' ); + + } + + super( array, itemSize, normalized ); + + this.meshPerAttribute = meshPerAttribute; + + } + + copy( source ) { + + super.copy( source ); + + this.meshPerAttribute = source.meshPerAttribute; + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.meshPerAttribute = this.meshPerAttribute; + + data.isInstancedBufferAttribute = true; + + return data; + + } + +} + +InstancedBufferAttribute.prototype.isInstancedBufferAttribute = true; + +const _instanceLocalMatrix = /*@__PURE__*/ new Matrix4(); +const _instanceWorldMatrix = /*@__PURE__*/ new Matrix4(); + +const _instanceIntersects = []; + +const _mesh = /*@__PURE__*/ new Mesh(); + +class InstancedMesh extends Mesh { + + constructor( geometry, material, count ) { + + super( geometry, material ); + + this.instanceMatrix = new InstancedBufferAttribute( new Float32Array( count * 16 ), 16 ); + this.instanceColor = null; + + this.count = count; + + this.frustumCulled = false; + + } + + copy( source ) { + + super.copy( source ); + + this.instanceMatrix.copy( source.instanceMatrix ); + + if ( source.instanceColor !== null ) this.instanceColor = source.instanceColor.clone(); + + this.count = source.count; + + return this; + + } + + getColorAt( index, color ) { + + color.fromArray( this.instanceColor.array, index * 3 ); + + } + + getMatrixAt( index, matrix ) { + + matrix.fromArray( this.instanceMatrix.array, index * 16 ); + + } + + raycast( raycaster, intersects ) { + + const matrixWorld = this.matrixWorld; + const raycastTimes = this.count; + + _mesh.geometry = this.geometry; + _mesh.material = this.material; + + if ( _mesh.material === undefined ) return; + + for ( let instanceId = 0; instanceId < raycastTimes; instanceId ++ ) { + + // calculate the world matrix for each instance + + this.getMatrixAt( instanceId, _instanceLocalMatrix ); + + _instanceWorldMatrix.multiplyMatrices( matrixWorld, _instanceLocalMatrix ); + + // the mesh represents this single instance + + _mesh.matrixWorld = _instanceWorldMatrix; + + _mesh.raycast( raycaster, _instanceIntersects ); + + // process the result of raycast + + for ( let i = 0, l = _instanceIntersects.length; i < l; i ++ ) { + + const intersect = _instanceIntersects[ i ]; + intersect.instanceId = instanceId; + intersect.object = this; + intersects.push( intersect ); + + } + + _instanceIntersects.length = 0; + + } + + } + + setColorAt( index, color ) { + + if ( this.instanceColor === null ) { + + this.instanceColor = new InstancedBufferAttribute( new Float32Array( this.instanceMatrix.count * 3 ), 3 ); + + } + + color.toArray( this.instanceColor.array, index * 3 ); + + } + + setMatrixAt( index, matrix ) { + + matrix.toArray( this.instanceMatrix.array, index * 16 ); + + } + + updateMorphTargets() { + + } + + dispose() { + + this.dispatchEvent( { type: 'dispose' } ); + + } + +} + +InstancedMesh.prototype.isInstancedMesh = true; + +/** + * parameters = { + * color: , + * opacity: , + * + * linewidth: , + * linecap: "round", + * linejoin: "round" + * } + */ + +class LineBasicMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'LineBasicMaterial'; + + this.color = new Color( 0xffffff ); + + this.linewidth = 1; + this.linecap = 'round'; + this.linejoin = 'round'; + + this.setValues( parameters ); + + } + + + copy( source ) { + + super.copy( source ); + + this.color.copy( source.color ); + + this.linewidth = source.linewidth; + this.linecap = source.linecap; + this.linejoin = source.linejoin; + + return this; + + } + +} + +LineBasicMaterial.prototype.isLineBasicMaterial = true; + +const _start$1 = /*@__PURE__*/ new Vector3(); +const _end$1 = /*@__PURE__*/ new Vector3(); +const _inverseMatrix$1 = /*@__PURE__*/ new Matrix4(); +const _ray$1 = /*@__PURE__*/ new Ray(); +const _sphere$1 = /*@__PURE__*/ new Sphere(); + +class Line extends Object3D { + + constructor( geometry = new BufferGeometry(), material = new LineBasicMaterial() ) { + + super(); + + this.type = 'Line'; + + this.geometry = geometry; + this.material = material; + + this.updateMorphTargets(); + + } + + copy( source ) { + + super.copy( source ); + + this.material = source.material; + this.geometry = source.geometry; + + return this; + + } + + computeLineDistances() { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + // we assume non-indexed geometry + + if ( geometry.index === null ) { + + const positionAttribute = geometry.attributes.position; + const lineDistances = [ 0 ]; + + for ( let i = 1, l = positionAttribute.count; i < l; i ++ ) { + + _start$1.fromBufferAttribute( positionAttribute, i - 1 ); + _end$1.fromBufferAttribute( positionAttribute, i ); + + lineDistances[ i ] = lineDistances[ i - 1 ]; + lineDistances[ i ] += _start$1.distanceTo( _end$1 ); + + } + + geometry.setAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) ); + + } else { + + console.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' ); + + } + + } else if ( geometry.isGeometry ) { + + console.error( 'THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + return this; + + } + + raycast( raycaster, intersects ) { + + const geometry = this.geometry; + const matrixWorld = this.matrixWorld; + const threshold = raycaster.params.Line.threshold; + const drawRange = geometry.drawRange; + + // Checking boundingSphere distance to ray + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + _sphere$1.copy( geometry.boundingSphere ); + _sphere$1.applyMatrix4( matrixWorld ); + _sphere$1.radius += threshold; + + if ( raycaster.ray.intersectsSphere( _sphere$1 ) === false ) return; + + // + + _inverseMatrix$1.copy( matrixWorld ).invert(); + _ray$1.copy( raycaster.ray ).applyMatrix4( _inverseMatrix$1 ); + + const localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 ); + const localThresholdSq = localThreshold * localThreshold; + + const vStart = new Vector3(); + const vEnd = new Vector3(); + const interSegment = new Vector3(); + const interRay = new Vector3(); + const step = this.isLineSegments ? 2 : 1; + + if ( geometry.isBufferGeometry ) { + + const index = geometry.index; + const attributes = geometry.attributes; + const positionAttribute = attributes.position; + + if ( index !== null ) { + + const start = Math.max( 0, drawRange.start ); + const end = Math.min( index.count, ( drawRange.start + drawRange.count ) ); + + for ( let i = start, l = end - 1; i < l; i += step ) { + + const a = index.getX( i ); + const b = index.getX( i + 1 ); + + vStart.fromBufferAttribute( positionAttribute, a ); + vEnd.fromBufferAttribute( positionAttribute, b ); + + const distSq = _ray$1.distanceSqToSegment( vStart, vEnd, interRay, interSegment ); + + if ( distSq > localThresholdSq ) continue; + + interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation + + const distance = raycaster.ray.origin.distanceTo( interRay ); + + if ( distance < raycaster.near || distance > raycaster.far ) continue; + + intersects.push( { + + distance: distance, + // What do we want? intersection point on the ray or on the segment?? + // point: raycaster.ray.at( distance ), + point: interSegment.clone().applyMatrix4( this.matrixWorld ), + index: i, + face: null, + faceIndex: null, + object: this + + } ); + + } + + } else { + + const start = Math.max( 0, drawRange.start ); + const end = Math.min( positionAttribute.count, ( drawRange.start + drawRange.count ) ); + + for ( let i = start, l = end - 1; i < l; i += step ) { + + vStart.fromBufferAttribute( positionAttribute, i ); + vEnd.fromBufferAttribute( positionAttribute, i + 1 ); + + const distSq = _ray$1.distanceSqToSegment( vStart, vEnd, interRay, interSegment ); + + if ( distSq > localThresholdSq ) continue; + + interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation + + const distance = raycaster.ray.origin.distanceTo( interRay ); + + if ( distance < raycaster.near || distance > raycaster.far ) continue; + + intersects.push( { + + distance: distance, + // What do we want? intersection point on the ray or on the segment?? + // point: raycaster.ray.at( distance ), + point: interSegment.clone().applyMatrix4( this.matrixWorld ), + index: i, + face: null, + faceIndex: null, + object: this + + } ); + + } + + } + + } else if ( geometry.isGeometry ) { + + console.error( 'THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + } + + updateMorphTargets() { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + const morphAttributes = geometry.morphAttributes; + const keys = Object.keys( morphAttributes ); + + if ( keys.length > 0 ) { + + const morphAttribute = morphAttributes[ keys[ 0 ] ]; + + if ( morphAttribute !== undefined ) { + + this.morphTargetInfluences = []; + this.morphTargetDictionary = {}; + + for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) { + + const name = morphAttribute[ m ].name || String( m ); + + this.morphTargetInfluences.push( 0 ); + this.morphTargetDictionary[ name ] = m; + + } + + } + + } + + } else { + + const morphTargets = geometry.morphTargets; + + if ( morphTargets !== undefined && morphTargets.length > 0 ) { + + console.error( 'THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + } + + } + +} + +Line.prototype.isLine = true; + +const _start = /*@__PURE__*/ new Vector3(); +const _end = /*@__PURE__*/ new Vector3(); + +class LineSegments extends Line { + + constructor( geometry, material ) { + + super( geometry, material ); + + this.type = 'LineSegments'; + + } + + computeLineDistances() { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + // we assume non-indexed geometry + + if ( geometry.index === null ) { + + const positionAttribute = geometry.attributes.position; + const lineDistances = []; + + for ( let i = 0, l = positionAttribute.count; i < l; i += 2 ) { + + _start.fromBufferAttribute( positionAttribute, i ); + _end.fromBufferAttribute( positionAttribute, i + 1 ); + + lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ]; + lineDistances[ i + 1 ] = lineDistances[ i ] + _start.distanceTo( _end ); + + } + + geometry.setAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) ); + + } else { + + console.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' ); + + } + + } else if ( geometry.isGeometry ) { + + console.error( 'THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + return this; + + } + +} + +LineSegments.prototype.isLineSegments = true; + +class LineLoop extends Line { + + constructor( geometry, material ) { + + super( geometry, material ); + + this.type = 'LineLoop'; + + } + +} + +LineLoop.prototype.isLineLoop = true; + +/** + * parameters = { + * color: , + * opacity: , + * map: new THREE.Texture( ), + * alphaMap: new THREE.Texture( ), + * + * size: , + * sizeAttenuation: + * + * } + */ + +class PointsMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'PointsMaterial'; + + this.color = new Color( 0xffffff ); + + this.map = null; + + this.alphaMap = null; + + this.size = 1; + this.sizeAttenuation = true; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.alphaMap = source.alphaMap; + + this.size = source.size; + this.sizeAttenuation = source.sizeAttenuation; + + return this; + + } + +} + +PointsMaterial.prototype.isPointsMaterial = true; + +const _inverseMatrix = /*@__PURE__*/ new Matrix4(); +const _ray = /*@__PURE__*/ new Ray(); +const _sphere = /*@__PURE__*/ new Sphere(); +const _position$2 = /*@__PURE__*/ new Vector3(); + +class Points extends Object3D { + + constructor( geometry = new BufferGeometry(), material = new PointsMaterial() ) { + + super(); + + this.type = 'Points'; + + this.geometry = geometry; + this.material = material; + + this.updateMorphTargets(); + + } + + copy( source ) { + + super.copy( source ); + + this.material = source.material; + this.geometry = source.geometry; + + return this; + + } + + raycast( raycaster, intersects ) { + + const geometry = this.geometry; + const matrixWorld = this.matrixWorld; + const threshold = raycaster.params.Points.threshold; + const drawRange = geometry.drawRange; + + // Checking boundingSphere distance to ray + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + _sphere.copy( geometry.boundingSphere ); + _sphere.applyMatrix4( matrixWorld ); + _sphere.radius += threshold; + + if ( raycaster.ray.intersectsSphere( _sphere ) === false ) return; + + // + + _inverseMatrix.copy( matrixWorld ).invert(); + _ray.copy( raycaster.ray ).applyMatrix4( _inverseMatrix ); + + const localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 ); + const localThresholdSq = localThreshold * localThreshold; + + if ( geometry.isBufferGeometry ) { + + const index = geometry.index; + const attributes = geometry.attributes; + const positionAttribute = attributes.position; + + if ( index !== null ) { + + const start = Math.max( 0, drawRange.start ); + const end = Math.min( index.count, ( drawRange.start + drawRange.count ) ); + + for ( let i = start, il = end; i < il; i ++ ) { + + const a = index.getX( i ); + + _position$2.fromBufferAttribute( positionAttribute, a ); + + testPoint( _position$2, a, localThresholdSq, matrixWorld, raycaster, intersects, this ); + + } + + } else { + + const start = Math.max( 0, drawRange.start ); + const end = Math.min( positionAttribute.count, ( drawRange.start + drawRange.count ) ); + + for ( let i = start, l = end; i < l; i ++ ) { + + _position$2.fromBufferAttribute( positionAttribute, i ); + + testPoint( _position$2, i, localThresholdSq, matrixWorld, raycaster, intersects, this ); + + } + + } + + } else { + + console.error( 'THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + } + + updateMorphTargets() { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + const morphAttributes = geometry.morphAttributes; + const keys = Object.keys( morphAttributes ); + + if ( keys.length > 0 ) { + + const morphAttribute = morphAttributes[ keys[ 0 ] ]; + + if ( morphAttribute !== undefined ) { + + this.morphTargetInfluences = []; + this.morphTargetDictionary = {}; + + for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) { + + const name = morphAttribute[ m ].name || String( m ); + + this.morphTargetInfluences.push( 0 ); + this.morphTargetDictionary[ name ] = m; + + } + + } + + } + + } else { + + const morphTargets = geometry.morphTargets; + + if ( morphTargets !== undefined && morphTargets.length > 0 ) { + + console.error( 'THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + } + + } + +} + +Points.prototype.isPoints = true; + +function testPoint( point, index, localThresholdSq, matrixWorld, raycaster, intersects, object ) { + + const rayPointDistanceSq = _ray.distanceSqToPoint( point ); + + if ( rayPointDistanceSq < localThresholdSq ) { + + const intersectPoint = new Vector3(); + + _ray.closestPointToPoint( point, intersectPoint ); + intersectPoint.applyMatrix4( matrixWorld ); + + const distance = raycaster.ray.origin.distanceTo( intersectPoint ); + + if ( distance < raycaster.near || distance > raycaster.far ) return; + + intersects.push( { + + distance: distance, + distanceToRay: Math.sqrt( rayPointDistanceSq ), + point: intersectPoint, + index: index, + face: null, + object: object + + } ); + + } + +} + +class VideoTexture extends Texture { + + constructor( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) { + + super( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ); + + this.format = format !== undefined ? format : RGBFormat; + + this.minFilter = minFilter !== undefined ? minFilter : LinearFilter; + this.magFilter = magFilter !== undefined ? magFilter : LinearFilter; + + this.generateMipmaps = false; + + const scope = this; + + function updateVideo() { + + scope.needsUpdate = true; + video.requestVideoFrameCallback( updateVideo ); + + } + + if ( 'requestVideoFrameCallback' in video ) { + + video.requestVideoFrameCallback( updateVideo ); + + } + + } + + clone() { + + return new this.constructor( this.image ).copy( this ); + + } + + update() { + + const video = this.image; + const hasVideoFrameCallback = 'requestVideoFrameCallback' in video; + + if ( hasVideoFrameCallback === false && video.readyState >= video.HAVE_CURRENT_DATA ) { + + this.needsUpdate = true; + + } + + } + +} + +VideoTexture.prototype.isVideoTexture = true; + +class CompressedTexture extends Texture { + + constructor( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) { + + super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ); + + this.image = { width: width, height: height }; + this.mipmaps = mipmaps; + + // no flipping for cube textures + // (also flipping doesn't work for compressed textures ) + + this.flipY = false; + + // can't generate mipmaps for compressed textures + // mips must be embedded in DDS files + + this.generateMipmaps = false; + + } + +} + +CompressedTexture.prototype.isCompressedTexture = true; + +class CanvasTexture extends Texture { + + constructor( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) { + + super( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ); + + this.needsUpdate = true; + + } + +} + +CanvasTexture.prototype.isCanvasTexture = true; + +class DepthTexture extends Texture { + + constructor( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) { + + format = format !== undefined ? format : DepthFormat; + + if ( format !== DepthFormat && format !== DepthStencilFormat ) { + + throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' ); + + } + + if ( type === undefined && format === DepthFormat ) type = UnsignedShortType; + if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type; + + super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ); + + this.image = { width: width, height: height }; + + this.magFilter = magFilter !== undefined ? magFilter : NearestFilter; + this.minFilter = minFilter !== undefined ? minFilter : NearestFilter; + + this.flipY = false; + this.generateMipmaps = false; + + } + + +} + +DepthTexture.prototype.isDepthTexture = true; + +class CircleGeometry extends BufferGeometry { + + constructor( radius = 1, segments = 8, thetaStart = 0, thetaLength = Math.PI * 2 ) { + + super(); + + this.type = 'CircleGeometry'; + + this.parameters = { + radius: radius, + segments: segments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + segments = Math.max( 3, segments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + const vertex = new Vector3(); + const uv = new Vector2(); + + // center point + + vertices.push( 0, 0, 0 ); + normals.push( 0, 0, 1 ); + uvs.push( 0.5, 0.5 ); + + for ( let s = 0, i = 3; s <= segments; s ++, i += 3 ) { + + const segment = thetaStart + s / segments * thetaLength; + + // vertex + + vertex.x = radius * Math.cos( segment ); + vertex.y = radius * Math.sin( segment ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normals.push( 0, 0, 1 ); + + // uvs + + uv.x = ( vertices[ i ] / radius + 1 ) / 2; + uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2; + + uvs.push( uv.x, uv.y ); + + } + + // indices + + for ( let i = 1; i <= segments; i ++ ) { + + indices.push( i, i + 1, 0 ); + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + + static fromJSON( data ) { + + return new CircleGeometry( data.radius, data.segments, data.thetaStart, data.thetaLength ); + + } + +} + +class CylinderGeometry extends BufferGeometry { + + constructor( radiusTop = 1, radiusBottom = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) { + + super(); + this.type = 'CylinderGeometry'; + + this.parameters = { + radiusTop: radiusTop, + radiusBottom: radiusBottom, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + const scope = this; + + radialSegments = Math.floor( radialSegments ); + heightSegments = Math.floor( heightSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + let index = 0; + const indexArray = []; + const halfHeight = height / 2; + let groupStart = 0; + + // generate geometry + + generateTorso(); + + if ( openEnded === false ) { + + if ( radiusTop > 0 ) generateCap( true ); + if ( radiusBottom > 0 ) generateCap( false ); + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + function generateTorso() { + + const normal = new Vector3(); + const vertex = new Vector3(); + + let groupCount = 0; + + // this will be used to calculate the normal + const slope = ( radiusBottom - radiusTop ) / height; + + // generate vertices, normals and uvs + + for ( let y = 0; y <= heightSegments; y ++ ) { + + const indexRow = []; + + const v = y / heightSegments; + + // calculate the radius of the current row + + const radius = v * ( radiusBottom - radiusTop ) + radiusTop; + + for ( let x = 0; x <= radialSegments; x ++ ) { + + const u = x / radialSegments; + + const theta = u * thetaLength + thetaStart; + + const sinTheta = Math.sin( theta ); + const cosTheta = Math.cos( theta ); + + // vertex + + vertex.x = radius * sinTheta; + vertex.y = - v * height + halfHeight; + vertex.z = radius * cosTheta; + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normal.set( sinTheta, slope, cosTheta ).normalize(); + normals.push( normal.x, normal.y, normal.z ); + + // uv + + uvs.push( u, 1 - v ); + + // save index of vertex in respective row + + indexRow.push( index ++ ); + + } + + // now save vertices of the row in our index array + + indexArray.push( indexRow ); + + } + + // generate indices + + for ( let x = 0; x < radialSegments; x ++ ) { + + for ( let y = 0; y < heightSegments; y ++ ) { + + // we use the index array to access the correct indices + + const a = indexArray[ y ][ x ]; + const b = indexArray[ y + 1 ][ x ]; + const c = indexArray[ y + 1 ][ x + 1 ]; + const d = indexArray[ y ][ x + 1 ]; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + // update group counter + + groupCount += 6; + + } + + } + + // add a group to the geometry. this will ensure multi material support + + scope.addGroup( groupStart, groupCount, 0 ); + + // calculate new start value for groups + + groupStart += groupCount; + + } + + function generateCap( top ) { + + // save the index of the first center vertex + const centerIndexStart = index; + + const uv = new Vector2(); + const vertex = new Vector3(); + + let groupCount = 0; + + const radius = ( top === true ) ? radiusTop : radiusBottom; + const sign = ( top === true ) ? 1 : - 1; + + // first we generate the center vertex data of the cap. + // because the geometry needs one set of uvs per face, + // we must generate a center vertex per face/segment + + for ( let x = 1; x <= radialSegments; x ++ ) { + + // vertex + + vertices.push( 0, halfHeight * sign, 0 ); + + // normal + + normals.push( 0, sign, 0 ); + + // uv + + uvs.push( 0.5, 0.5 ); + + // increase index + + index ++; + + } + + // save the index of the last center vertex + const centerIndexEnd = index; + + // now we generate the surrounding vertices, normals and uvs + + for ( let x = 0; x <= radialSegments; x ++ ) { + + const u = x / radialSegments; + const theta = u * thetaLength + thetaStart; + + const cosTheta = Math.cos( theta ); + const sinTheta = Math.sin( theta ); + + // vertex + + vertex.x = radius * sinTheta; + vertex.y = halfHeight * sign; + vertex.z = radius * cosTheta; + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normals.push( 0, sign, 0 ); + + // uv + + uv.x = ( cosTheta * 0.5 ) + 0.5; + uv.y = ( sinTheta * 0.5 * sign ) + 0.5; + uvs.push( uv.x, uv.y ); + + // increase index + + index ++; + + } + + // generate indices + + for ( let x = 0; x < radialSegments; x ++ ) { + + const c = centerIndexStart + x; + const i = centerIndexEnd + x; + + if ( top === true ) { + + // face top + + indices.push( i, i + 1, c ); + + } else { + + // face bottom + + indices.push( i + 1, i, c ); + + } + + groupCount += 3; + + } + + // add a group to the geometry. this will ensure multi material support + + scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 ); + + // calculate new start value for groups + + groupStart += groupCount; + + } + + } + + static fromJSON( data ) { + + return new CylinderGeometry( data.radiusTop, data.radiusBottom, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength ); + + } + +} + +class ConeGeometry extends CylinderGeometry { + + constructor( radius = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) { + + super( 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ); + + this.type = 'ConeGeometry'; + + this.parameters = { + radius: radius, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + } + + static fromJSON( data ) { + + return new ConeGeometry( data.radius, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength ); + + } + +} + +class PolyhedronGeometry extends BufferGeometry { + + constructor( vertices = [], indices = [], radius = 1, detail = 0 ) { + + super(); + + this.type = 'PolyhedronGeometry'; + + this.parameters = { + vertices: vertices, + indices: indices, + radius: radius, + detail: detail + }; + + // default buffer data + + const vertexBuffer = []; + const uvBuffer = []; + + // the subdivision creates the vertex buffer data + + subdivide( detail ); + + // all vertices should lie on a conceptual sphere with a given radius + + applyRadius( radius ); + + // finally, create the uv data + + generateUVs(); + + // build non-indexed geometry + + this.setAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) ); + + if ( detail === 0 ) { + + this.computeVertexNormals(); // flat normals + + } else { + + this.normalizeNormals(); // smooth normals + + } + + // helper functions + + function subdivide( detail ) { + + const a = new Vector3(); + const b = new Vector3(); + const c = new Vector3(); + + // iterate over all faces and apply a subdivison with the given detail value + + for ( let i = 0; i < indices.length; i += 3 ) { + + // get the vertices of the face + + getVertexByIndex( indices[ i + 0 ], a ); + getVertexByIndex( indices[ i + 1 ], b ); + getVertexByIndex( indices[ i + 2 ], c ); + + // perform subdivision + + subdivideFace( a, b, c, detail ); + + } + + } + + function subdivideFace( a, b, c, detail ) { + + const cols = detail + 1; + + // we use this multidimensional array as a data structure for creating the subdivision + + const v = []; + + // construct all of the vertices for this subdivision + + for ( let i = 0; i <= cols; i ++ ) { + + v[ i ] = []; + + const aj = a.clone().lerp( c, i / cols ); + const bj = b.clone().lerp( c, i / cols ); + + const rows = cols - i; + + for ( let j = 0; j <= rows; j ++ ) { + + if ( j === 0 && i === cols ) { + + v[ i ][ j ] = aj; + + } else { + + v[ i ][ j ] = aj.clone().lerp( bj, j / rows ); + + } + + } + + } + + // construct all of the faces + + for ( let i = 0; i < cols; i ++ ) { + + for ( let j = 0; j < 2 * ( cols - i ) - 1; j ++ ) { + + const k = Math.floor( j / 2 ); + + if ( j % 2 === 0 ) { + + pushVertex( v[ i ][ k + 1 ] ); + pushVertex( v[ i + 1 ][ k ] ); + pushVertex( v[ i ][ k ] ); + + } else { + + pushVertex( v[ i ][ k + 1 ] ); + pushVertex( v[ i + 1 ][ k + 1 ] ); + pushVertex( v[ i + 1 ][ k ] ); + + } + + } + + } + + } + + function applyRadius( radius ) { + + const vertex = new Vector3(); + + // iterate over the entire buffer and apply the radius to each vertex + + for ( let i = 0; i < vertexBuffer.length; i += 3 ) { + + vertex.x = vertexBuffer[ i + 0 ]; + vertex.y = vertexBuffer[ i + 1 ]; + vertex.z = vertexBuffer[ i + 2 ]; + + vertex.normalize().multiplyScalar( radius ); + + vertexBuffer[ i + 0 ] = vertex.x; + vertexBuffer[ i + 1 ] = vertex.y; + vertexBuffer[ i + 2 ] = vertex.z; + + } + + } + + function generateUVs() { + + const vertex = new Vector3(); + + for ( let i = 0; i < vertexBuffer.length; i += 3 ) { + + vertex.x = vertexBuffer[ i + 0 ]; + vertex.y = vertexBuffer[ i + 1 ]; + vertex.z = vertexBuffer[ i + 2 ]; + + const u = azimuth( vertex ) / 2 / Math.PI + 0.5; + const v = inclination( vertex ) / Math.PI + 0.5; + uvBuffer.push( u, 1 - v ); + + } + + correctUVs(); + + correctSeam(); + + } + + function correctSeam() { + + // handle case when face straddles the seam, see #3269 + + for ( let i = 0; i < uvBuffer.length; i += 6 ) { + + // uv data of a single face + + const x0 = uvBuffer[ i + 0 ]; + const x1 = uvBuffer[ i + 2 ]; + const x2 = uvBuffer[ i + 4 ]; + + const max = Math.max( x0, x1, x2 ); + const min = Math.min( x0, x1, x2 ); + + // 0.9 is somewhat arbitrary + + if ( max > 0.9 && min < 0.1 ) { + + if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1; + if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1; + if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1; + + } + + } + + } + + function pushVertex( vertex ) { + + vertexBuffer.push( vertex.x, vertex.y, vertex.z ); + + } + + function getVertexByIndex( index, vertex ) { + + const stride = index * 3; + + vertex.x = vertices[ stride + 0 ]; + vertex.y = vertices[ stride + 1 ]; + vertex.z = vertices[ stride + 2 ]; + + } + + function correctUVs() { + + const a = new Vector3(); + const b = new Vector3(); + const c = new Vector3(); + + const centroid = new Vector3(); + + const uvA = new Vector2(); + const uvB = new Vector2(); + const uvC = new Vector2(); + + for ( let i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) { + + a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] ); + b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] ); + c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] ); + + uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] ); + uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] ); + uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] ); + + centroid.copy( a ).add( b ).add( c ).divideScalar( 3 ); + + const azi = azimuth( centroid ); + + correctUV( uvA, j + 0, a, azi ); + correctUV( uvB, j + 2, b, azi ); + correctUV( uvC, j + 4, c, azi ); + + } + + } + + function correctUV( uv, stride, vector, azimuth ) { + + if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) { + + uvBuffer[ stride ] = uv.x - 1; + + } + + if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) { + + uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5; + + } + + } + + // Angle around the Y axis, counter-clockwise when looking from above. + + function azimuth( vector ) { + + return Math.atan2( vector.z, - vector.x ); + + } + + + // Angle above the XZ plane. + + function inclination( vector ) { + + return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) ); + + } + + } + + static fromJSON( data ) { + + return new PolyhedronGeometry( data.vertices, data.indices, data.radius, data.details ); + + } + +} + +class DodecahedronGeometry extends PolyhedronGeometry { + + constructor( radius = 1, detail = 0 ) { + + const t = ( 1 + Math.sqrt( 5 ) ) / 2; + const r = 1 / t; + + const vertices = [ + + // (±1, ±1, ±1) + - 1, - 1, - 1, - 1, - 1, 1, + - 1, 1, - 1, - 1, 1, 1, + 1, - 1, - 1, 1, - 1, 1, + 1, 1, - 1, 1, 1, 1, + + // (0, ±1/φ, ±φ) + 0, - r, - t, 0, - r, t, + 0, r, - t, 0, r, t, + + // (±1/φ, ±φ, 0) + - r, - t, 0, - r, t, 0, + r, - t, 0, r, t, 0, + + // (±φ, 0, ±1/φ) + - t, 0, - r, t, 0, - r, + - t, 0, r, t, 0, r + ]; + + const indices = [ + 3, 11, 7, 3, 7, 15, 3, 15, 13, + 7, 19, 17, 7, 17, 6, 7, 6, 15, + 17, 4, 8, 17, 8, 10, 17, 10, 6, + 8, 0, 16, 8, 16, 2, 8, 2, 10, + 0, 12, 1, 0, 1, 18, 0, 18, 16, + 6, 10, 2, 6, 2, 13, 6, 13, 15, + 2, 16, 18, 2, 18, 3, 2, 3, 13, + 18, 1, 9, 18, 9, 11, 18, 11, 3, + 4, 14, 12, 4, 12, 0, 4, 0, 8, + 11, 9, 5, 11, 5, 19, 11, 19, 7, + 19, 5, 14, 19, 14, 4, 19, 4, 17, + 1, 12, 14, 1, 14, 5, 1, 5, 9 + ]; + + super( vertices, indices, radius, detail ); + + this.type = 'DodecahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + + static fromJSON( data ) { + + return new DodecahedronGeometry( data.radius, data.detail ); + + } + +} + +const _v0 = new Vector3(); +const _v1$1 = new Vector3(); +const _normal = new Vector3(); +const _triangle = new Triangle(); + +class EdgesGeometry extends BufferGeometry { + + constructor( geometry = null, thresholdAngle = 1 ) { + + super(); + this.type = 'EdgesGeometry'; + + this.parameters = { + geometry: geometry, + thresholdAngle: thresholdAngle + }; + + if ( geometry !== null ) { + + const precisionPoints = 4; + const precision = Math.pow( 10, precisionPoints ); + const thresholdDot = Math.cos( DEG2RAD * thresholdAngle ); + + const indexAttr = geometry.getIndex(); + const positionAttr = geometry.getAttribute( 'position' ); + const indexCount = indexAttr ? indexAttr.count : positionAttr.count; + + const indexArr = [ 0, 0, 0 ]; + const vertKeys = [ 'a', 'b', 'c' ]; + const hashes = new Array( 3 ); + + const edgeData = {}; + const vertices = []; + for ( let i = 0; i < indexCount; i += 3 ) { + + if ( indexAttr ) { + + indexArr[ 0 ] = indexAttr.getX( i ); + indexArr[ 1 ] = indexAttr.getX( i + 1 ); + indexArr[ 2 ] = indexAttr.getX( i + 2 ); + + } else { + + indexArr[ 0 ] = i; + indexArr[ 1 ] = i + 1; + indexArr[ 2 ] = i + 2; + + } + + const { a, b, c } = _triangle; + a.fromBufferAttribute( positionAttr, indexArr[ 0 ] ); + b.fromBufferAttribute( positionAttr, indexArr[ 1 ] ); + c.fromBufferAttribute( positionAttr, indexArr[ 2 ] ); + _triangle.getNormal( _normal ); + + // create hashes for the edge from the vertices + hashes[ 0 ] = `${ Math.round( a.x * precision ) },${ Math.round( a.y * precision ) },${ Math.round( a.z * precision ) }`; + hashes[ 1 ] = `${ Math.round( b.x * precision ) },${ Math.round( b.y * precision ) },${ Math.round( b.z * precision ) }`; + hashes[ 2 ] = `${ Math.round( c.x * precision ) },${ Math.round( c.y * precision ) },${ Math.round( c.z * precision ) }`; + + // skip degenerate triangles + if ( hashes[ 0 ] === hashes[ 1 ] || hashes[ 1 ] === hashes[ 2 ] || hashes[ 2 ] === hashes[ 0 ] ) { + + continue; + + } + + // iterate over every edge + for ( let j = 0; j < 3; j ++ ) { + + // get the first and next vertex making up the edge + const jNext = ( j + 1 ) % 3; + const vecHash0 = hashes[ j ]; + const vecHash1 = hashes[ jNext ]; + const v0 = _triangle[ vertKeys[ j ] ]; + const v1 = _triangle[ vertKeys[ jNext ] ]; + + const hash = `${ vecHash0 }_${ vecHash1 }`; + const reverseHash = `${ vecHash1 }_${ vecHash0 }`; + + if ( reverseHash in edgeData && edgeData[ reverseHash ] ) { + + // if we found a sibling edge add it into the vertex array if + // it meets the angle threshold and delete the edge from the map. + if ( _normal.dot( edgeData[ reverseHash ].normal ) <= thresholdDot ) { + + vertices.push( v0.x, v0.y, v0.z ); + vertices.push( v1.x, v1.y, v1.z ); + + } + + edgeData[ reverseHash ] = null; + + } else if ( ! ( hash in edgeData ) ) { + + // if we've already got an edge here then skip adding a new one + edgeData[ hash ] = { + + index0: indexArr[ j ], + index1: indexArr[ jNext ], + normal: _normal.clone(), + + }; + + } + + } + + } + + // iterate over all remaining, unmatched edges and add them to the vertex array + for ( const key in edgeData ) { + + if ( edgeData[ key ] ) { + + const { index0, index1 } = edgeData[ key ]; + _v0.fromBufferAttribute( positionAttr, index0 ); + _v1$1.fromBufferAttribute( positionAttr, index1 ); + + vertices.push( _v0.x, _v0.y, _v0.z ); + vertices.push( _v1$1.x, _v1$1.y, _v1$1.z ); + + } + + } + + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + + } + + } + +} + +/** + * Extensible curve object. + * + * Some common of curve methods: + * .getPoint( t, optionalTarget ), .getTangent( t, optionalTarget ) + * .getPointAt( u, optionalTarget ), .getTangentAt( u, optionalTarget ) + * .getPoints(), .getSpacedPoints() + * .getLength() + * .updateArcLengths() + * + * This following curves inherit from THREE.Curve: + * + * -- 2D curves -- + * THREE.ArcCurve + * THREE.CubicBezierCurve + * THREE.EllipseCurve + * THREE.LineCurve + * THREE.QuadraticBezierCurve + * THREE.SplineCurve + * + * -- 3D curves -- + * THREE.CatmullRomCurve3 + * THREE.CubicBezierCurve3 + * THREE.LineCurve3 + * THREE.QuadraticBezierCurve3 + * + * A series of curves can be represented as a THREE.CurvePath. + * + **/ + +class Curve { + + constructor() { + + this.type = 'Curve'; + + this.arcLengthDivisions = 200; + + } + + // Virtual base class method to overwrite and implement in subclasses + // - t [0 .. 1] + + getPoint( /* t, optionalTarget */ ) { + + console.warn( 'THREE.Curve: .getPoint() not implemented.' ); + return null; + + } + + // Get point at relative position in curve according to arc length + // - u [0 .. 1] + + getPointAt( u, optionalTarget ) { + + const t = this.getUtoTmapping( u ); + return this.getPoint( t, optionalTarget ); + + } + + // Get sequence of points using getPoint( t ) + + getPoints( divisions = 5 ) { + + const points = []; + + for ( let d = 0; d <= divisions; d ++ ) { + + points.push( this.getPoint( d / divisions ) ); + + } + + return points; + + } + + // Get sequence of points using getPointAt( u ) + + getSpacedPoints( divisions = 5 ) { + + const points = []; + + for ( let d = 0; d <= divisions; d ++ ) { + + points.push( this.getPointAt( d / divisions ) ); + + } + + return points; + + } + + // Get total curve arc length + + getLength() { + + const lengths = this.getLengths(); + return lengths[ lengths.length - 1 ]; + + } + + // Get list of cumulative segment lengths + + getLengths( divisions = this.arcLengthDivisions ) { + + if ( this.cacheArcLengths && + ( this.cacheArcLengths.length === divisions + 1 ) && + ! this.needsUpdate ) { + + return this.cacheArcLengths; + + } + + this.needsUpdate = false; + + const cache = []; + let current, last = this.getPoint( 0 ); + let sum = 0; + + cache.push( 0 ); + + for ( let p = 1; p <= divisions; p ++ ) { + + current = this.getPoint( p / divisions ); + sum += current.distanceTo( last ); + cache.push( sum ); + last = current; + + } + + this.cacheArcLengths = cache; + + return cache; // { sums: cache, sum: sum }; Sum is in the last element. + + } + + updateArcLengths() { + + this.needsUpdate = true; + this.getLengths(); + + } + + // Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant + + getUtoTmapping( u, distance ) { + + const arcLengths = this.getLengths(); + + let i = 0; + const il = arcLengths.length; + + let targetArcLength; // The targeted u distance value to get + + if ( distance ) { + + targetArcLength = distance; + + } else { + + targetArcLength = u * arcLengths[ il - 1 ]; + + } + + // binary search for the index with largest value smaller than target u distance + + let low = 0, high = il - 1, comparison; + + while ( low <= high ) { + + i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats + + comparison = arcLengths[ i ] - targetArcLength; + + if ( comparison < 0 ) { + + low = i + 1; + + } else if ( comparison > 0 ) { + + high = i - 1; + + } else { + + high = i; + break; + + // DONE + + } + + } + + i = high; + + if ( arcLengths[ i ] === targetArcLength ) { + + return i / ( il - 1 ); + + } + + // we could get finer grain at lengths, or use simple interpolation between two points + + const lengthBefore = arcLengths[ i ]; + const lengthAfter = arcLengths[ i + 1 ]; + + const segmentLength = lengthAfter - lengthBefore; + + // determine where we are between the 'before' and 'after' points + + const segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength; + + // add that fractional amount to t + + const t = ( i + segmentFraction ) / ( il - 1 ); + + return t; + + } + + // Returns a unit vector tangent at t + // In case any sub curve does not implement its tangent derivation, + // 2 points a small delta apart will be used to find its gradient + // which seems to give a reasonable approximation + + getTangent( t, optionalTarget ) { + + const delta = 0.0001; + let t1 = t - delta; + let t2 = t + delta; + + // Capping in case of danger + + if ( t1 < 0 ) t1 = 0; + if ( t2 > 1 ) t2 = 1; + + const pt1 = this.getPoint( t1 ); + const pt2 = this.getPoint( t2 ); + + const tangent = optionalTarget || ( ( pt1.isVector2 ) ? new Vector2() : new Vector3() ); + + tangent.copy( pt2 ).sub( pt1 ).normalize(); + + return tangent; + + } + + getTangentAt( u, optionalTarget ) { + + const t = this.getUtoTmapping( u ); + return this.getTangent( t, optionalTarget ); + + } + + computeFrenetFrames( segments, closed ) { + + // see http://www.cs.indiana.edu/pub/techreports/TR425.pdf + + const normal = new Vector3(); + + const tangents = []; + const normals = []; + const binormals = []; + + const vec = new Vector3(); + const mat = new Matrix4(); + + // compute the tangent vectors for each segment on the curve + + for ( let i = 0; i <= segments; i ++ ) { + + const u = i / segments; + + tangents[ i ] = this.getTangentAt( u, new Vector3() ); + + } + + // select an initial normal vector perpendicular to the first tangent vector, + // and in the direction of the minimum tangent xyz component + + normals[ 0 ] = new Vector3(); + binormals[ 0 ] = new Vector3(); + let min = Number.MAX_VALUE; + const tx = Math.abs( tangents[ 0 ].x ); + const ty = Math.abs( tangents[ 0 ].y ); + const tz = Math.abs( tangents[ 0 ].z ); + + if ( tx <= min ) { + + min = tx; + normal.set( 1, 0, 0 ); + + } + + if ( ty <= min ) { + + min = ty; + normal.set( 0, 1, 0 ); + + } + + if ( tz <= min ) { + + normal.set( 0, 0, 1 ); + + } + + vec.crossVectors( tangents[ 0 ], normal ).normalize(); + + normals[ 0 ].crossVectors( tangents[ 0 ], vec ); + binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] ); + + + // compute the slowly-varying normal and binormal vectors for each segment on the curve + + for ( let i = 1; i <= segments; i ++ ) { + + normals[ i ] = normals[ i - 1 ].clone(); + + binormals[ i ] = binormals[ i - 1 ].clone(); + + vec.crossVectors( tangents[ i - 1 ], tangents[ i ] ); + + if ( vec.length() > Number.EPSILON ) { + + vec.normalize(); + + const theta = Math.acos( clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors + + normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) ); + + } + + binormals[ i ].crossVectors( tangents[ i ], normals[ i ] ); + + } + + // if the curve is closed, postprocess the vectors so the first and last normal vectors are the same + + if ( closed === true ) { + + let theta = Math.acos( clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) ); + theta /= segments; + + if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) { + + theta = - theta; + + } + + for ( let i = 1; i <= segments; i ++ ) { + + // twist a little... + normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) ); + binormals[ i ].crossVectors( tangents[ i ], normals[ i ] ); + + } + + } + + return { + tangents: tangents, + normals: normals, + binormals: binormals + }; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( source ) { + + this.arcLengthDivisions = source.arcLengthDivisions; + + return this; + + } + + toJSON() { + + const data = { + metadata: { + version: 4.5, + type: 'Curve', + generator: 'Curve.toJSON' + } + }; + + data.arcLengthDivisions = this.arcLengthDivisions; + data.type = this.type; + + return data; + + } + + fromJSON( json ) { + + this.arcLengthDivisions = json.arcLengthDivisions; + + return this; + + } + +} + +class EllipseCurve extends Curve { + + constructor( aX = 0, aY = 0, xRadius = 1, yRadius = 1, aStartAngle = 0, aEndAngle = Math.PI * 2, aClockwise = false, aRotation = 0 ) { + + super(); + + this.type = 'EllipseCurve'; + + this.aX = aX; + this.aY = aY; + + this.xRadius = xRadius; + this.yRadius = yRadius; + + this.aStartAngle = aStartAngle; + this.aEndAngle = aEndAngle; + + this.aClockwise = aClockwise; + + this.aRotation = aRotation; + + } + + getPoint( t, optionalTarget ) { + + const point = optionalTarget || new Vector2(); + + const twoPi = Math.PI * 2; + let deltaAngle = this.aEndAngle - this.aStartAngle; + const samePoints = Math.abs( deltaAngle ) < Number.EPSILON; + + // ensures that deltaAngle is 0 .. 2 PI + while ( deltaAngle < 0 ) deltaAngle += twoPi; + while ( deltaAngle > twoPi ) deltaAngle -= twoPi; + + if ( deltaAngle < Number.EPSILON ) { + + if ( samePoints ) { + + deltaAngle = 0; + + } else { + + deltaAngle = twoPi; + + } + + } + + if ( this.aClockwise === true && ! samePoints ) { + + if ( deltaAngle === twoPi ) { + + deltaAngle = - twoPi; + + } else { + + deltaAngle = deltaAngle - twoPi; + + } + + } + + const angle = this.aStartAngle + t * deltaAngle; + let x = this.aX + this.xRadius * Math.cos( angle ); + let y = this.aY + this.yRadius * Math.sin( angle ); + + if ( this.aRotation !== 0 ) { + + const cos = Math.cos( this.aRotation ); + const sin = Math.sin( this.aRotation ); + + const tx = x - this.aX; + const ty = y - this.aY; + + // Rotate the point about the center of the ellipse. + x = tx * cos - ty * sin + this.aX; + y = tx * sin + ty * cos + this.aY; + + } + + return point.set( x, y ); + + } + + copy( source ) { + + super.copy( source ); + + this.aX = source.aX; + this.aY = source.aY; + + this.xRadius = source.xRadius; + this.yRadius = source.yRadius; + + this.aStartAngle = source.aStartAngle; + this.aEndAngle = source.aEndAngle; + + this.aClockwise = source.aClockwise; + + this.aRotation = source.aRotation; + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.aX = this.aX; + data.aY = this.aY; + + data.xRadius = this.xRadius; + data.yRadius = this.yRadius; + + data.aStartAngle = this.aStartAngle; + data.aEndAngle = this.aEndAngle; + + data.aClockwise = this.aClockwise; + + data.aRotation = this.aRotation; + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.aX = json.aX; + this.aY = json.aY; + + this.xRadius = json.xRadius; + this.yRadius = json.yRadius; + + this.aStartAngle = json.aStartAngle; + this.aEndAngle = json.aEndAngle; + + this.aClockwise = json.aClockwise; + + this.aRotation = json.aRotation; + + return this; + + } + +} + +EllipseCurve.prototype.isEllipseCurve = true; + +class ArcCurve extends EllipseCurve { + + constructor( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) { + + super( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise ); + + this.type = 'ArcCurve'; + + } + +} + +ArcCurve.prototype.isArcCurve = true; + +/** + * Centripetal CatmullRom Curve - which is useful for avoiding + * cusps and self-intersections in non-uniform catmull rom curves. + * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf + * + * curve.type accepts centripetal(default), chordal and catmullrom + * curve.tension is used for catmullrom which defaults to 0.5 + */ + + +/* +Based on an optimized c++ solution in + - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/ + - http://ideone.com/NoEbVM + +This CubicPoly class could be used for reusing some variables and calculations, +but for three.js curve use, it could be possible inlined and flatten into a single function call +which can be placed in CurveUtils. +*/ + +function CubicPoly() { + + let c0 = 0, c1 = 0, c2 = 0, c3 = 0; + + /* + * Compute coefficients for a cubic polynomial + * p(s) = c0 + c1*s + c2*s^2 + c3*s^3 + * such that + * p(0) = x0, p(1) = x1 + * and + * p'(0) = t0, p'(1) = t1. + */ + function init( x0, x1, t0, t1 ) { + + c0 = x0; + c1 = t0; + c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1; + c3 = 2 * x0 - 2 * x1 + t0 + t1; + + } + + return { + + initCatmullRom: function ( x0, x1, x2, x3, tension ) { + + init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) ); + + }, + + initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) { + + // compute tangents when parameterized in [t1,t2] + let t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1; + let t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2; + + // rescale tangents for parametrization in [0,1] + t1 *= dt1; + t2 *= dt1; + + init( x1, x2, t1, t2 ); + + }, + + calc: function ( t ) { + + const t2 = t * t; + const t3 = t2 * t; + return c0 + c1 * t + c2 * t2 + c3 * t3; + + } + + }; + +} + +// + +const tmp = new Vector3(); +const px = new CubicPoly(), py = new CubicPoly(), pz = new CubicPoly(); + +class CatmullRomCurve3 extends Curve { + + constructor( points = [], closed = false, curveType = 'centripetal', tension = 0.5 ) { + + super(); + + this.type = 'CatmullRomCurve3'; + + this.points = points; + this.closed = closed; + this.curveType = curveType; + this.tension = tension; + + } + + getPoint( t, optionalTarget = new Vector3() ) { + + const point = optionalTarget; + + const points = this.points; + const l = points.length; + + const p = ( l - ( this.closed ? 0 : 1 ) ) * t; + let intPoint = Math.floor( p ); + let weight = p - intPoint; + + if ( this.closed ) { + + intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / l ) + 1 ) * l; + + } else if ( weight === 0 && intPoint === l - 1 ) { + + intPoint = l - 2; + weight = 1; + + } + + let p0, p3; // 4 points (p1 & p2 defined below) + + if ( this.closed || intPoint > 0 ) { + + p0 = points[ ( intPoint - 1 ) % l ]; + + } else { + + // extrapolate first point + tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] ); + p0 = tmp; + + } + + const p1 = points[ intPoint % l ]; + const p2 = points[ ( intPoint + 1 ) % l ]; + + if ( this.closed || intPoint + 2 < l ) { + + p3 = points[ ( intPoint + 2 ) % l ]; + + } else { + + // extrapolate last point + tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] ); + p3 = tmp; + + } + + if ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) { + + // init Centripetal / Chordal Catmull-Rom + const pow = this.curveType === 'chordal' ? 0.5 : 0.25; + let dt0 = Math.pow( p0.distanceToSquared( p1 ), pow ); + let dt1 = Math.pow( p1.distanceToSquared( p2 ), pow ); + let dt2 = Math.pow( p2.distanceToSquared( p3 ), pow ); + + // safety check for repeated points + if ( dt1 < 1e-4 ) dt1 = 1.0; + if ( dt0 < 1e-4 ) dt0 = dt1; + if ( dt2 < 1e-4 ) dt2 = dt1; + + px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 ); + py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 ); + pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 ); + + } else if ( this.curveType === 'catmullrom' ) { + + px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension ); + py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension ); + pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension ); + + } + + point.set( + px.calc( weight ), + py.calc( weight ), + pz.calc( weight ) + ); + + return point; + + } + + copy( source ) { + + super.copy( source ); + + this.points = []; + + for ( let i = 0, l = source.points.length; i < l; i ++ ) { + + const point = source.points[ i ]; + + this.points.push( point.clone() ); + + } + + this.closed = source.closed; + this.curveType = source.curveType; + this.tension = source.tension; + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.points = []; + + for ( let i = 0, l = this.points.length; i < l; i ++ ) { + + const point = this.points[ i ]; + data.points.push( point.toArray() ); + + } + + data.closed = this.closed; + data.curveType = this.curveType; + data.tension = this.tension; + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.points = []; + + for ( let i = 0, l = json.points.length; i < l; i ++ ) { + + const point = json.points[ i ]; + this.points.push( new Vector3().fromArray( point ) ); + + } + + this.closed = json.closed; + this.curveType = json.curveType; + this.tension = json.tension; + + return this; + + } + +} + +CatmullRomCurve3.prototype.isCatmullRomCurve3 = true; + +/** + * Bezier Curves formulas obtained from + * http://en.wikipedia.org/wiki/Bézier_curve + */ + +function CatmullRom( t, p0, p1, p2, p3 ) { + + const v0 = ( p2 - p0 ) * 0.5; + const v1 = ( p3 - p1 ) * 0.5; + const t2 = t * t; + const t3 = t * t2; + return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1; + +} + +// + +function QuadraticBezierP0( t, p ) { + + const k = 1 - t; + return k * k * p; + +} + +function QuadraticBezierP1( t, p ) { + + return 2 * ( 1 - t ) * t * p; + +} + +function QuadraticBezierP2( t, p ) { + + return t * t * p; + +} + +function QuadraticBezier( t, p0, p1, p2 ) { + + return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) + + QuadraticBezierP2( t, p2 ); + +} + +// + +function CubicBezierP0( t, p ) { + + const k = 1 - t; + return k * k * k * p; + +} + +function CubicBezierP1( t, p ) { + + const k = 1 - t; + return 3 * k * k * t * p; + +} + +function CubicBezierP2( t, p ) { + + return 3 * ( 1 - t ) * t * t * p; + +} + +function CubicBezierP3( t, p ) { + + return t * t * t * p; + +} + +function CubicBezier( t, p0, p1, p2, p3 ) { + + return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) + + CubicBezierP3( t, p3 ); + +} + +class CubicBezierCurve extends Curve { + + constructor( v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2(), v3 = new Vector2() ) { + + super(); + + this.type = 'CubicBezierCurve'; + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + this.v3 = v3; + + } + + getPoint( t, optionalTarget = new Vector2() ) { + + const point = optionalTarget; + + const v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3; + + point.set( + CubicBezier( t, v0.x, v1.x, v2.x, v3.x ), + CubicBezier( t, v0.y, v1.y, v2.y, v3.y ) + ); + + return point; + + } + + copy( source ) { + + super.copy( source ); + + this.v0.copy( source.v0 ); + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + this.v3.copy( source.v3 ); + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.v0 = this.v0.toArray(); + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + data.v3 = this.v3.toArray(); + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.v0.fromArray( json.v0 ); + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + this.v3.fromArray( json.v3 ); + + return this; + + } + +} + +CubicBezierCurve.prototype.isCubicBezierCurve = true; + +class CubicBezierCurve3 extends Curve { + + constructor( v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3(), v3 = new Vector3() ) { + + super(); + + this.type = 'CubicBezierCurve3'; + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + this.v3 = v3; + + } + + getPoint( t, optionalTarget = new Vector3() ) { + + const point = optionalTarget; + + const v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3; + + point.set( + CubicBezier( t, v0.x, v1.x, v2.x, v3.x ), + CubicBezier( t, v0.y, v1.y, v2.y, v3.y ), + CubicBezier( t, v0.z, v1.z, v2.z, v3.z ) + ); + + return point; + + } + + copy( source ) { + + super.copy( source ); + + this.v0.copy( source.v0 ); + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + this.v3.copy( source.v3 ); + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.v0 = this.v0.toArray(); + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + data.v3 = this.v3.toArray(); + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.v0.fromArray( json.v0 ); + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + this.v3.fromArray( json.v3 ); + + return this; + + } + +} + +CubicBezierCurve3.prototype.isCubicBezierCurve3 = true; + +class LineCurve extends Curve { + + constructor( v1 = new Vector2(), v2 = new Vector2() ) { + + super(); + + this.type = 'LineCurve'; + + this.v1 = v1; + this.v2 = v2; + + } + + getPoint( t, optionalTarget = new Vector2() ) { + + const point = optionalTarget; + + if ( t === 1 ) { + + point.copy( this.v2 ); + + } else { + + point.copy( this.v2 ).sub( this.v1 ); + point.multiplyScalar( t ).add( this.v1 ); + + } + + return point; + + } + + // Line curve is linear, so we can overwrite default getPointAt + getPointAt( u, optionalTarget ) { + + return this.getPoint( u, optionalTarget ); + + } + + getTangent( t, optionalTarget ) { + + const tangent = optionalTarget || new Vector2(); + + tangent.copy( this.v2 ).sub( this.v1 ).normalize(); + + return tangent; + + } + + copy( source ) { + + super.copy( source ); + + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + + return this; + + } + +} + +LineCurve.prototype.isLineCurve = true; + +class LineCurve3 extends Curve { + + constructor( v1 = new Vector3(), v2 = new Vector3() ) { + + super(); + + this.type = 'LineCurve3'; + this.isLineCurve3 = true; + + this.v1 = v1; + this.v2 = v2; + + } + getPoint( t, optionalTarget = new Vector3() ) { + + const point = optionalTarget; + + if ( t === 1 ) { + + point.copy( this.v2 ); + + } else { + + point.copy( this.v2 ).sub( this.v1 ); + point.multiplyScalar( t ).add( this.v1 ); + + } + + return point; + + } + // Line curve is linear, so we can overwrite default getPointAt + getPointAt( u, optionalTarget ) { + + return this.getPoint( u, optionalTarget ); + + } + copy( source ) { + + super.copy( source ); + + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + + return this; + + } + toJSON() { + + const data = super.toJSON(); + + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + + return data; + + } + fromJSON( json ) { + + super.fromJSON( json ); + + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + + return this; + + } + +} + +class QuadraticBezierCurve extends Curve { + + constructor( v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2() ) { + + super(); + + this.type = 'QuadraticBezierCurve'; + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + + } + + getPoint( t, optionalTarget = new Vector2() ) { + + const point = optionalTarget; + + const v0 = this.v0, v1 = this.v1, v2 = this.v2; + + point.set( + QuadraticBezier( t, v0.x, v1.x, v2.x ), + QuadraticBezier( t, v0.y, v1.y, v2.y ) + ); + + return point; + + } + + copy( source ) { + + super.copy( source ); + + this.v0.copy( source.v0 ); + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.v0 = this.v0.toArray(); + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.v0.fromArray( json.v0 ); + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + + return this; + + } + +} + +QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true; + +class QuadraticBezierCurve3 extends Curve { + + constructor( v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3() ) { + + super(); + + this.type = 'QuadraticBezierCurve3'; + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + + } + + getPoint( t, optionalTarget = new Vector3() ) { + + const point = optionalTarget; + + const v0 = this.v0, v1 = this.v1, v2 = this.v2; + + point.set( + QuadraticBezier( t, v0.x, v1.x, v2.x ), + QuadraticBezier( t, v0.y, v1.y, v2.y ), + QuadraticBezier( t, v0.z, v1.z, v2.z ) + ); + + return point; + + } + + copy( source ) { + + super.copy( source ); + + this.v0.copy( source.v0 ); + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.v0 = this.v0.toArray(); + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.v0.fromArray( json.v0 ); + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + + return this; + + } + +} + +QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true; + +class SplineCurve extends Curve { + + constructor( points = [] ) { + + super(); + + this.type = 'SplineCurve'; + + this.points = points; + + } + + getPoint( t, optionalTarget = new Vector2() ) { + + const point = optionalTarget; + + const points = this.points; + const p = ( points.length - 1 ) * t; + + const intPoint = Math.floor( p ); + const weight = p - intPoint; + + const p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ]; + const p1 = points[ intPoint ]; + const p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ]; + const p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ]; + + point.set( + CatmullRom( weight, p0.x, p1.x, p2.x, p3.x ), + CatmullRom( weight, p0.y, p1.y, p2.y, p3.y ) + ); + + return point; + + } + + copy( source ) { + + super.copy( source ); + + this.points = []; + + for ( let i = 0, l = source.points.length; i < l; i ++ ) { + + const point = source.points[ i ]; + + this.points.push( point.clone() ); + + } + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.points = []; + + for ( let i = 0, l = this.points.length; i < l; i ++ ) { + + const point = this.points[ i ]; + data.points.push( point.toArray() ); + + } + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.points = []; + + for ( let i = 0, l = json.points.length; i < l; i ++ ) { + + const point = json.points[ i ]; + this.points.push( new Vector2().fromArray( point ) ); + + } + + return this; + + } + +} + +SplineCurve.prototype.isSplineCurve = true; + +var Curves = /*#__PURE__*/Object.freeze({ + __proto__: null, + ArcCurve: ArcCurve, + CatmullRomCurve3: CatmullRomCurve3, + CubicBezierCurve: CubicBezierCurve, + CubicBezierCurve3: CubicBezierCurve3, + EllipseCurve: EllipseCurve, + LineCurve: LineCurve, + LineCurve3: LineCurve3, + QuadraticBezierCurve: QuadraticBezierCurve, + QuadraticBezierCurve3: QuadraticBezierCurve3, + SplineCurve: SplineCurve +}); + +/************************************************************** + * Curved Path - a curve path is simply a array of connected + * curves, but retains the api of a curve + **************************************************************/ + +class CurvePath extends Curve { + + constructor() { + + super(); + + this.type = 'CurvePath'; + + this.curves = []; + this.autoClose = false; // Automatically closes the path + + } + + add( curve ) { + + this.curves.push( curve ); + + } + + closePath() { + + // Add a line curve if start and end of lines are not connected + const startPoint = this.curves[ 0 ].getPoint( 0 ); + const endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 ); + + if ( ! startPoint.equals( endPoint ) ) { + + this.curves.push( new LineCurve( endPoint, startPoint ) ); + + } + + } + + // To get accurate point with reference to + // entire path distance at time t, + // following has to be done: + + // 1. Length of each sub path have to be known + // 2. Locate and identify type of curve + // 3. Get t for the curve + // 4. Return curve.getPointAt(t') + + getPoint( t, optionalTarget ) { + + const d = t * this.getLength(); + const curveLengths = this.getCurveLengths(); + let i = 0; + + // To think about boundaries points. + + while ( i < curveLengths.length ) { + + if ( curveLengths[ i ] >= d ) { + + const diff = curveLengths[ i ] - d; + const curve = this.curves[ i ]; + + const segmentLength = curve.getLength(); + const u = segmentLength === 0 ? 0 : 1 - diff / segmentLength; + + return curve.getPointAt( u, optionalTarget ); + + } + + i ++; + + } + + return null; + + // loop where sum != 0, sum > d , sum+1 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) { + + points.push( points[ 0 ] ); + + } + + return points; + + } + + copy( source ) { + + super.copy( source ); + + this.curves = []; + + for ( let i = 0, l = source.curves.length; i < l; i ++ ) { + + const curve = source.curves[ i ]; + + this.curves.push( curve.clone() ); + + } + + this.autoClose = source.autoClose; + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.autoClose = this.autoClose; + data.curves = []; + + for ( let i = 0, l = this.curves.length; i < l; i ++ ) { + + const curve = this.curves[ i ]; + data.curves.push( curve.toJSON() ); + + } + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.autoClose = json.autoClose; + this.curves = []; + + for ( let i = 0, l = json.curves.length; i < l; i ++ ) { + + const curve = json.curves[ i ]; + this.curves.push( new Curves[ curve.type ]().fromJSON( curve ) ); + + } + + return this; + + } + +} + +class Path extends CurvePath { + + constructor( points ) { + + super(); + this.type = 'Path'; + + this.currentPoint = new Vector2(); + + if ( points ) { + + this.setFromPoints( points ); + + } + + } + + setFromPoints( points ) { + + this.moveTo( points[ 0 ].x, points[ 0 ].y ); + + for ( let i = 1, l = points.length; i < l; i ++ ) { + + this.lineTo( points[ i ].x, points[ i ].y ); + + } + + return this; + + } + + moveTo( x, y ) { + + this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying? + + return this; + + } + + lineTo( x, y ) { + + const curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) ); + this.curves.push( curve ); + + this.currentPoint.set( x, y ); + + return this; + + } + + quadraticCurveTo( aCPx, aCPy, aX, aY ) { + + const curve = new QuadraticBezierCurve( + this.currentPoint.clone(), + new Vector2( aCPx, aCPy ), + new Vector2( aX, aY ) + ); + + this.curves.push( curve ); + + this.currentPoint.set( aX, aY ); + + return this; + + } + + bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) { + + const curve = new CubicBezierCurve( + this.currentPoint.clone(), + new Vector2( aCP1x, aCP1y ), + new Vector2( aCP2x, aCP2y ), + new Vector2( aX, aY ) + ); + + this.curves.push( curve ); + + this.currentPoint.set( aX, aY ); + + return this; + + } + + splineThru( pts /*Array of Vector*/ ) { + + const npts = [ this.currentPoint.clone() ].concat( pts ); + + const curve = new SplineCurve( npts ); + this.curves.push( curve ); + + this.currentPoint.copy( pts[ pts.length - 1 ] ); + + return this; + + } + + arc( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) { + + const x0 = this.currentPoint.x; + const y0 = this.currentPoint.y; + + this.absarc( aX + x0, aY + y0, aRadius, + aStartAngle, aEndAngle, aClockwise ); + + return this; + + } + + absarc( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) { + + this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise ); + + return this; + + } + + ellipse( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) { + + const x0 = this.currentPoint.x; + const y0 = this.currentPoint.y; + + this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ); + + return this; + + } + + absellipse( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) { + + const curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ); + + if ( this.curves.length > 0 ) { + + // if a previous curve is present, attempt to join + const firstPoint = curve.getPoint( 0 ); + + if ( ! firstPoint.equals( this.currentPoint ) ) { + + this.lineTo( firstPoint.x, firstPoint.y ); + + } + + } + + this.curves.push( curve ); + + const lastPoint = curve.getPoint( 1 ); + this.currentPoint.copy( lastPoint ); + + return this; + + } + + copy( source ) { + + super.copy( source ); + + this.currentPoint.copy( source.currentPoint ); + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.currentPoint = this.currentPoint.toArray(); + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.currentPoint.fromArray( json.currentPoint ); + + return this; + + } + +} + +class Shape extends Path { + + constructor( points ) { + + super( points ); + + this.uuid = generateUUID(); + + this.type = 'Shape'; + + this.holes = []; + + } + + getPointsHoles( divisions ) { + + const holesPts = []; + + for ( let i = 0, l = this.holes.length; i < l; i ++ ) { + + holesPts[ i ] = this.holes[ i ].getPoints( divisions ); + + } + + return holesPts; + + } + + // get points of shape and holes (keypoints based on segments parameter) + + extractPoints( divisions ) { + + return { + + shape: this.getPoints( divisions ), + holes: this.getPointsHoles( divisions ) + + }; + + } + + copy( source ) { + + super.copy( source ); + + this.holes = []; + + for ( let i = 0, l = source.holes.length; i < l; i ++ ) { + + const hole = source.holes[ i ]; + + this.holes.push( hole.clone() ); + + } + + return this; + + } + + toJSON() { + + const data = super.toJSON(); + + data.uuid = this.uuid; + data.holes = []; + + for ( let i = 0, l = this.holes.length; i < l; i ++ ) { + + const hole = this.holes[ i ]; + data.holes.push( hole.toJSON() ); + + } + + return data; + + } + + fromJSON( json ) { + + super.fromJSON( json ); + + this.uuid = json.uuid; + this.holes = []; + + for ( let i = 0, l = json.holes.length; i < l; i ++ ) { + + const hole = json.holes[ i ]; + this.holes.push( new Path().fromJSON( hole ) ); + + } + + return this; + + } + +} + +/** + * Port from https://github.com/mapbox/earcut (v2.2.2) + */ + +const Earcut = { + + triangulate: function ( data, holeIndices, dim = 2 ) { + + const hasHoles = holeIndices && holeIndices.length; + const outerLen = hasHoles ? holeIndices[ 0 ] * dim : data.length; + let outerNode = linkedList( data, 0, outerLen, dim, true ); + const triangles = []; + + if ( ! outerNode || outerNode.next === outerNode.prev ) return triangles; + + let minX, minY, maxX, maxY, x, y, invSize; + + if ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim ); + + // if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox + if ( data.length > 80 * dim ) { + + minX = maxX = data[ 0 ]; + minY = maxY = data[ 1 ]; + + for ( let i = dim; i < outerLen; i += dim ) { + + x = data[ i ]; + y = data[ i + 1 ]; + if ( x < minX ) minX = x; + if ( y < minY ) minY = y; + if ( x > maxX ) maxX = x; + if ( y > maxY ) maxY = y; + + } + + // minX, minY and invSize are later used to transform coords into integers for z-order calculation + invSize = Math.max( maxX - minX, maxY - minY ); + invSize = invSize !== 0 ? 1 / invSize : 0; + + } + + earcutLinked( outerNode, triangles, dim, minX, minY, invSize ); + + return triangles; + + } + +}; + +// create a circular doubly linked list from polygon points in the specified winding order +function linkedList( data, start, end, dim, clockwise ) { + + let i, last; + + if ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) { + + for ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last ); + + } else { + + for ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last ); + + } + + if ( last && equals( last, last.next ) ) { + + removeNode( last ); + last = last.next; + + } + + return last; + +} + +// eliminate colinear or duplicate points +function filterPoints( start, end ) { + + if ( ! start ) return start; + if ( ! end ) end = start; + + let p = start, + again; + do { + + again = false; + + if ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) { + + removeNode( p ); + p = end = p.prev; + if ( p === p.next ) break; + again = true; + + } else { + + p = p.next; + + } + + } while ( again || p !== end ); + + return end; + +} + +// main ear slicing loop which triangulates a polygon (given as a linked list) +function earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) { + + if ( ! ear ) return; + + // interlink polygon nodes in z-order + if ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize ); + + let stop = ear, + prev, next; + + // iterate through ears, slicing them one by one + while ( ear.prev !== ear.next ) { + + prev = ear.prev; + next = ear.next; + + if ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) { + + // cut off the triangle + triangles.push( prev.i / dim ); + triangles.push( ear.i / dim ); + triangles.push( next.i / dim ); + + removeNode( ear ); + + // skipping the next vertex leads to less sliver triangles + ear = next.next; + stop = next.next; + + continue; + + } + + ear = next; + + // if we looped through the whole remaining polygon and can't find any more ears + if ( ear === stop ) { + + // try filtering points and slicing again + if ( ! pass ) { + + earcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 ); + + // if this didn't work, try curing all small self-intersections locally + + } else if ( pass === 1 ) { + + ear = cureLocalIntersections( filterPoints( ear ), triangles, dim ); + earcutLinked( ear, triangles, dim, minX, minY, invSize, 2 ); + + // as a last resort, try splitting the remaining polygon into two + + } else if ( pass === 2 ) { + + splitEarcut( ear, triangles, dim, minX, minY, invSize ); + + } + + break; + + } + + } + +} + +// check whether a polygon node forms a valid ear with adjacent nodes +function isEar( ear ) { + + const a = ear.prev, + b = ear, + c = ear.next; + + if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear + + // now make sure we don't have other points inside the potential ear + let p = ear.next.next; + + while ( p !== ear.prev ) { + + if ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && + area( p.prev, p, p.next ) >= 0 ) return false; + p = p.next; + + } + + return true; + +} + +function isEarHashed( ear, minX, minY, invSize ) { + + const a = ear.prev, + b = ear, + c = ear.next; + + if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear + + // triangle bbox; min & max are calculated like this for speed + const minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ), + minTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ), + maxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ), + maxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y ); + + // z-order range for the current triangle bbox; + const minZ = zOrder( minTX, minTY, minX, minY, invSize ), + maxZ = zOrder( maxTX, maxTY, minX, minY, invSize ); + + let p = ear.prevZ, + n = ear.nextZ; + + // look for points inside the triangle in both directions + while ( p && p.z >= minZ && n && n.z <= maxZ ) { + + if ( p !== ear.prev && p !== ear.next && + pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && + area( p.prev, p, p.next ) >= 0 ) return false; + p = p.prevZ; + + if ( n !== ear.prev && n !== ear.next && + pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y ) && + area( n.prev, n, n.next ) >= 0 ) return false; + n = n.nextZ; + + } + + // look for remaining points in decreasing z-order + while ( p && p.z >= minZ ) { + + if ( p !== ear.prev && p !== ear.next && + pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && + area( p.prev, p, p.next ) >= 0 ) return false; + p = p.prevZ; + + } + + // look for remaining points in increasing z-order + while ( n && n.z <= maxZ ) { + + if ( n !== ear.prev && n !== ear.next && + pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y ) && + area( n.prev, n, n.next ) >= 0 ) return false; + n = n.nextZ; + + } + + return true; + +} + +// go through all polygon nodes and cure small local self-intersections +function cureLocalIntersections( start, triangles, dim ) { + + let p = start; + do { + + const a = p.prev, + b = p.next.next; + + if ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) { + + triangles.push( a.i / dim ); + triangles.push( p.i / dim ); + triangles.push( b.i / dim ); + + // remove two nodes involved + removeNode( p ); + removeNode( p.next ); + + p = start = b; + + } + + p = p.next; + + } while ( p !== start ); + + return filterPoints( p ); + +} + +// try splitting polygon into two and triangulate them independently +function splitEarcut( start, triangles, dim, minX, minY, invSize ) { + + // look for a valid diagonal that divides the polygon into two + let a = start; + do { + + let b = a.next.next; + while ( b !== a.prev ) { + + if ( a.i !== b.i && isValidDiagonal( a, b ) ) { + + // split the polygon in two by the diagonal + let c = splitPolygon( a, b ); + + // filter colinear points around the cuts + a = filterPoints( a, a.next ); + c = filterPoints( c, c.next ); + + // run earcut on each half + earcutLinked( a, triangles, dim, minX, minY, invSize ); + earcutLinked( c, triangles, dim, minX, minY, invSize ); + return; + + } + + b = b.next; + + } + + a = a.next; + + } while ( a !== start ); + +} + +// link every hole into the outer loop, producing a single-ring polygon without holes +function eliminateHoles( data, holeIndices, outerNode, dim ) { + + const queue = []; + let i, len, start, end, list; + + for ( i = 0, len = holeIndices.length; i < len; i ++ ) { + + start = holeIndices[ i ] * dim; + end = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length; + list = linkedList( data, start, end, dim, false ); + if ( list === list.next ) list.steiner = true; + queue.push( getLeftmost( list ) ); + + } + + queue.sort( compareX ); + + // process holes from left to right + for ( i = 0; i < queue.length; i ++ ) { + + eliminateHole( queue[ i ], outerNode ); + outerNode = filterPoints( outerNode, outerNode.next ); + + } + + return outerNode; + +} + +function compareX( a, b ) { + + return a.x - b.x; + +} + +// find a bridge between vertices that connects hole with an outer ring and and link it +function eliminateHole( hole, outerNode ) { + + outerNode = findHoleBridge( hole, outerNode ); + if ( outerNode ) { + + const b = splitPolygon( outerNode, hole ); + + // filter collinear points around the cuts + filterPoints( outerNode, outerNode.next ); + filterPoints( b, b.next ); + + } + +} + +// David Eberly's algorithm for finding a bridge between hole and outer polygon +function findHoleBridge( hole, outerNode ) { + + let p = outerNode; + const hx = hole.x; + const hy = hole.y; + let qx = - Infinity, m; + + // find a segment intersected by a ray from the hole's leftmost point to the left; + // segment's endpoint with lesser x will be potential connection point + do { + + if ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) { + + const x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y ); + if ( x <= hx && x > qx ) { + + qx = x; + if ( x === hx ) { + + if ( hy === p.y ) return p; + if ( hy === p.next.y ) return p.next; + + } + + m = p.x < p.next.x ? p : p.next; + + } + + } + + p = p.next; + + } while ( p !== outerNode ); + + if ( ! m ) return null; + + if ( hx === qx ) return m; // hole touches outer segment; pick leftmost endpoint + + // look for points inside the triangle of hole point, segment intersection and endpoint; + // if there are no points found, we have a valid connection; + // otherwise choose the point of the minimum angle with the ray as connection point + + const stop = m, + mx = m.x, + my = m.y; + let tanMin = Infinity, tan; + + p = m; + + do { + + if ( hx >= p.x && p.x >= mx && hx !== p.x && + pointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) { + + tan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential + + if ( locallyInside( p, hole ) && ( tan < tanMin || ( tan === tanMin && ( p.x > m.x || ( p.x === m.x && sectorContainsSector( m, p ) ) ) ) ) ) { + + m = p; + tanMin = tan; + + } + + } + + p = p.next; + + } while ( p !== stop ); + + return m; + +} + +// whether sector in vertex m contains sector in vertex p in the same coordinates +function sectorContainsSector( m, p ) { + + return area( m.prev, m, p.prev ) < 0 && area( p.next, m, m.next ) < 0; + +} + +// interlink polygon nodes in z-order +function indexCurve( start, minX, minY, invSize ) { + + let p = start; + do { + + if ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize ); + p.prevZ = p.prev; + p.nextZ = p.next; + p = p.next; + + } while ( p !== start ); + + p.prevZ.nextZ = null; + p.prevZ = null; + + sortLinked( p ); + +} + +// Simon Tatham's linked list merge sort algorithm +// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html +function sortLinked( list ) { + + let i, p, q, e, tail, numMerges, pSize, qSize, + inSize = 1; + + do { + + p = list; + list = null; + tail = null; + numMerges = 0; + + while ( p ) { + + numMerges ++; + q = p; + pSize = 0; + for ( i = 0; i < inSize; i ++ ) { + + pSize ++; + q = q.nextZ; + if ( ! q ) break; + + } + + qSize = inSize; + + while ( pSize > 0 || ( qSize > 0 && q ) ) { + + if ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) { + + e = p; + p = p.nextZ; + pSize --; + + } else { + + e = q; + q = q.nextZ; + qSize --; + + } + + if ( tail ) tail.nextZ = e; + else list = e; + + e.prevZ = tail; + tail = e; + + } + + p = q; + + } + + tail.nextZ = null; + inSize *= 2; + + } while ( numMerges > 1 ); + + return list; + +} + +// z-order of a point given coords and inverse of the longer side of data bbox +function zOrder( x, y, minX, minY, invSize ) { + + // coords are transformed into non-negative 15-bit integer range + x = 32767 * ( x - minX ) * invSize; + y = 32767 * ( y - minY ) * invSize; + + x = ( x | ( x << 8 ) ) & 0x00FF00FF; + x = ( x | ( x << 4 ) ) & 0x0F0F0F0F; + x = ( x | ( x << 2 ) ) & 0x33333333; + x = ( x | ( x << 1 ) ) & 0x55555555; + + y = ( y | ( y << 8 ) ) & 0x00FF00FF; + y = ( y | ( y << 4 ) ) & 0x0F0F0F0F; + y = ( y | ( y << 2 ) ) & 0x33333333; + y = ( y | ( y << 1 ) ) & 0x55555555; + + return x | ( y << 1 ); + +} + +// find the leftmost node of a polygon ring +function getLeftmost( start ) { + + let p = start, + leftmost = start; + do { + + if ( p.x < leftmost.x || ( p.x === leftmost.x && p.y < leftmost.y ) ) leftmost = p; + p = p.next; + + } while ( p !== start ); + + return leftmost; + +} + +// check if a point lies within a convex triangle +function pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) { + + return ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 && + ( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 && + ( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0; + +} + +// check if a diagonal between two polygon nodes is valid (lies in polygon interior) +function isValidDiagonal( a, b ) { + + return a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) && // dones't intersect other edges + ( locallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b ) && // locally visible + ( area( a.prev, a, b.prev ) || area( a, b.prev, b ) ) || // does not create opposite-facing sectors + equals( a, b ) && area( a.prev, a, a.next ) > 0 && area( b.prev, b, b.next ) > 0 ); // special zero-length case + +} + +// signed area of a triangle +function area( p, q, r ) { + + return ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y ); + +} + +// check if two points are equal +function equals( p1, p2 ) { + + return p1.x === p2.x && p1.y === p2.y; + +} + +// check if two segments intersect +function intersects( p1, q1, p2, q2 ) { + + const o1 = sign( area( p1, q1, p2 ) ); + const o2 = sign( area( p1, q1, q2 ) ); + const o3 = sign( area( p2, q2, p1 ) ); + const o4 = sign( area( p2, q2, q1 ) ); + + if ( o1 !== o2 && o3 !== o4 ) return true; // general case + + if ( o1 === 0 && onSegment( p1, p2, q1 ) ) return true; // p1, q1 and p2 are collinear and p2 lies on p1q1 + if ( o2 === 0 && onSegment( p1, q2, q1 ) ) return true; // p1, q1 and q2 are collinear and q2 lies on p1q1 + if ( o3 === 0 && onSegment( p2, p1, q2 ) ) return true; // p2, q2 and p1 are collinear and p1 lies on p2q2 + if ( o4 === 0 && onSegment( p2, q1, q2 ) ) return true; // p2, q2 and q1 are collinear and q1 lies on p2q2 + + return false; + +} + +// for collinear points p, q, r, check if point q lies on segment pr +function onSegment( p, q, r ) { + + return q.x <= Math.max( p.x, r.x ) && q.x >= Math.min( p.x, r.x ) && q.y <= Math.max( p.y, r.y ) && q.y >= Math.min( p.y, r.y ); + +} + +function sign( num ) { + + return num > 0 ? 1 : num < 0 ? - 1 : 0; + +} + +// check if a polygon diagonal intersects any polygon segments +function intersectsPolygon( a, b ) { + + let p = a; + do { + + if ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i && + intersects( p, p.next, a, b ) ) return true; + p = p.next; + + } while ( p !== a ); + + return false; + +} + +// check if a polygon diagonal is locally inside the polygon +function locallyInside( a, b ) { + + return area( a.prev, a, a.next ) < 0 ? + area( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 : + area( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0; + +} + +// check if the middle point of a polygon diagonal is inside the polygon +function middleInside( a, b ) { + + let p = a, + inside = false; + const px = ( a.x + b.x ) / 2, + py = ( a.y + b.y ) / 2; + do { + + if ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y && + ( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) ) + inside = ! inside; + p = p.next; + + } while ( p !== a ); + + return inside; + +} + +// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two; +// if one belongs to the outer ring and another to a hole, it merges it into a single ring +function splitPolygon( a, b ) { + + const a2 = new Node( a.i, a.x, a.y ), + b2 = new Node( b.i, b.x, b.y ), + an = a.next, + bp = b.prev; + + a.next = b; + b.prev = a; + + a2.next = an; + an.prev = a2; + + b2.next = a2; + a2.prev = b2; + + bp.next = b2; + b2.prev = bp; + + return b2; + +} + +// create a node and optionally link it with previous one (in a circular doubly linked list) +function insertNode( i, x, y, last ) { + + const p = new Node( i, x, y ); + + if ( ! last ) { + + p.prev = p; + p.next = p; + + } else { + + p.next = last.next; + p.prev = last; + last.next.prev = p; + last.next = p; + + } + + return p; + +} + +function removeNode( p ) { + + p.next.prev = p.prev; + p.prev.next = p.next; + + if ( p.prevZ ) p.prevZ.nextZ = p.nextZ; + if ( p.nextZ ) p.nextZ.prevZ = p.prevZ; + +} + +function Node( i, x, y ) { + + // vertex index in coordinates array + this.i = i; + + // vertex coordinates + this.x = x; + this.y = y; + + // previous and next vertex nodes in a polygon ring + this.prev = null; + this.next = null; + + // z-order curve value + this.z = null; + + // previous and next nodes in z-order + this.prevZ = null; + this.nextZ = null; + + // indicates whether this is a steiner point + this.steiner = false; + +} + +function signedArea( data, start, end, dim ) { + + let sum = 0; + for ( let i = start, j = end - dim; i < end; i += dim ) { + + sum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] ); + j = i; + + } + + return sum; + +} + +class ShapeUtils { + + // calculate area of the contour polygon + + static area( contour ) { + + const n = contour.length; + let a = 0.0; + + for ( let p = n - 1, q = 0; q < n; p = q ++ ) { + + a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y; + + } + + return a * 0.5; + + } + + static isClockWise( pts ) { + + return ShapeUtils.area( pts ) < 0; + + } + + static triangulateShape( contour, holes ) { + + const vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ] + const holeIndices = []; // array of hole indices + const faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ] + + removeDupEndPts( contour ); + addContour( vertices, contour ); + + // + + let holeIndex = contour.length; + + holes.forEach( removeDupEndPts ); + + for ( let i = 0; i < holes.length; i ++ ) { + + holeIndices.push( holeIndex ); + holeIndex += holes[ i ].length; + addContour( vertices, holes[ i ] ); + + } + + // + + const triangles = Earcut.triangulate( vertices, holeIndices ); + + // + + for ( let i = 0; i < triangles.length; i += 3 ) { + + faces.push( triangles.slice( i, i + 3 ) ); + + } + + return faces; + + } + +} + +function removeDupEndPts( points ) { + + const l = points.length; + + if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) { + + points.pop(); + + } + +} + +function addContour( vertices, contour ) { + + for ( let i = 0; i < contour.length; i ++ ) { + + vertices.push( contour[ i ].x ); + vertices.push( contour[ i ].y ); + + } + +} + +/** + * Creates extruded geometry from a path shape. + * + * parameters = { + * + * curveSegments: , // number of points on the curves + * steps: , // number of points for z-side extrusions / used for subdividing segments of extrude spline too + * depth: , // Depth to extrude the shape + * + * bevelEnabled: , // turn on bevel + * bevelThickness: , // how deep into the original shape bevel goes + * bevelSize: , // how far from shape outline (including bevelOffset) is bevel + * bevelOffset: , // how far from shape outline does bevel start + * bevelSegments: , // number of bevel layers + * + * extrudePath: // curve to extrude shape along + * + * UVGenerator: // object that provides UV generator functions + * + * } + */ + +class ExtrudeGeometry extends BufferGeometry { + + constructor( shapes = new Shape( [ new Vector2( 0.5, 0.5 ), new Vector2( - 0.5, 0.5 ), new Vector2( - 0.5, - 0.5 ), new Vector2( 0.5, - 0.5 ) ] ), options = {} ) { + + super(); + + this.type = 'ExtrudeGeometry'; + + this.parameters = { + shapes: shapes, + options: options + }; + + shapes = Array.isArray( shapes ) ? shapes : [ shapes ]; + + const scope = this; + + const verticesArray = []; + const uvArray = []; + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + addShape( shape ); + + } + + // build geometry + + this.setAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) ); + + this.computeVertexNormals(); + + // functions + + function addShape( shape ) { + + const placeholder = []; + + // options + + const curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12; + const steps = options.steps !== undefined ? options.steps : 1; + let depth = options.depth !== undefined ? options.depth : 1; + + let bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true; + let bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 0.2; + let bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 0.1; + let bevelOffset = options.bevelOffset !== undefined ? options.bevelOffset : 0; + let bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3; + + const extrudePath = options.extrudePath; + + const uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator; + + // deprecated options + + if ( options.amount !== undefined ) { + + console.warn( 'THREE.ExtrudeBufferGeometry: amount has been renamed to depth.' ); + depth = options.amount; + + } + + // + + let extrudePts, extrudeByPath = false; + let splineTube, binormal, normal, position2; + + if ( extrudePath ) { + + extrudePts = extrudePath.getSpacedPoints( steps ); + + extrudeByPath = true; + bevelEnabled = false; // bevels not supported for path extrusion + + // SETUP TNB variables + + // TODO1 - have a .isClosed in spline? + + splineTube = extrudePath.computeFrenetFrames( steps, false ); + + // console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length); + + binormal = new Vector3(); + normal = new Vector3(); + position2 = new Vector3(); + + } + + // Safeguards if bevels are not enabled + + if ( ! bevelEnabled ) { + + bevelSegments = 0; + bevelThickness = 0; + bevelSize = 0; + bevelOffset = 0; + + } + + // Variables initialization + + const shapePoints = shape.extractPoints( curveSegments ); + + let vertices = shapePoints.shape; + const holes = shapePoints.holes; + + const reverse = ! ShapeUtils.isClockWise( vertices ); + + if ( reverse ) { + + vertices = vertices.reverse(); + + // Maybe we should also check if holes are in the opposite direction, just to be safe ... + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + + if ( ShapeUtils.isClockWise( ahole ) ) { + + holes[ h ] = ahole.reverse(); + + } + + } + + } + + + const faces = ShapeUtils.triangulateShape( vertices, holes ); + + /* Vertices */ + + const contour = vertices; // vertices has all points but contour has only points of circumference + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + + vertices = vertices.concat( ahole ); + + } + + + function scalePt2( pt, vec, size ) { + + if ( ! vec ) console.error( 'THREE.ExtrudeGeometry: vec does not exist' ); + + return vec.clone().multiplyScalar( size ).add( pt ); + + } + + const vlen = vertices.length, flen = faces.length; + + + // Find directions for point movement + + + function getBevelVec( inPt, inPrev, inNext ) { + + // computes for inPt the corresponding point inPt' on a new contour + // shifted by 1 unit (length of normalized vector) to the left + // if we walk along contour clockwise, this new contour is outside the old one + // + // inPt' is the intersection of the two lines parallel to the two + // adjacent edges of inPt at a distance of 1 unit on the left side. + + let v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt + + // good reading for geometry algorithms (here: line-line intersection) + // http://geomalgorithms.com/a05-_intersect-1.html + + const v_prev_x = inPt.x - inPrev.x, + v_prev_y = inPt.y - inPrev.y; + const v_next_x = inNext.x - inPt.x, + v_next_y = inNext.y - inPt.y; + + const v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y ); + + // check for collinear edges + const collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x ); + + if ( Math.abs( collinear0 ) > Number.EPSILON ) { + + // not collinear + + // length of vectors for normalizing + + const v_prev_len = Math.sqrt( v_prev_lensq ); + const v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y ); + + // shift adjacent points by unit vectors to the left + + const ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len ); + const ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len ); + + const ptNextShift_x = ( inNext.x - v_next_y / v_next_len ); + const ptNextShift_y = ( inNext.y + v_next_x / v_next_len ); + + // scaling factor for v_prev to intersection point + + const sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y - + ( ptNextShift_y - ptPrevShift_y ) * v_next_x ) / + ( v_prev_x * v_next_y - v_prev_y * v_next_x ); + + // vector from inPt to intersection point + + v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x ); + v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y ); + + // Don't normalize!, otherwise sharp corners become ugly + // but prevent crazy spikes + const v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y ); + if ( v_trans_lensq <= 2 ) { + + return new Vector2( v_trans_x, v_trans_y ); + + } else { + + shrink_by = Math.sqrt( v_trans_lensq / 2 ); + + } + + } else { + + // handle special case of collinear edges + + let direction_eq = false; // assumes: opposite + + if ( v_prev_x > Number.EPSILON ) { + + if ( v_next_x > Number.EPSILON ) { + + direction_eq = true; + + } + + } else { + + if ( v_prev_x < - Number.EPSILON ) { + + if ( v_next_x < - Number.EPSILON ) { + + direction_eq = true; + + } + + } else { + + if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) { + + direction_eq = true; + + } + + } + + } + + if ( direction_eq ) { + + // console.log("Warning: lines are a straight sequence"); + v_trans_x = - v_prev_y; + v_trans_y = v_prev_x; + shrink_by = Math.sqrt( v_prev_lensq ); + + } else { + + // console.log("Warning: lines are a straight spike"); + v_trans_x = v_prev_x; + v_trans_y = v_prev_y; + shrink_by = Math.sqrt( v_prev_lensq / 2 ); + + } + + } + + return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by ); + + } + + + const contourMovements = []; + + for ( let i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) { + + if ( j === il ) j = 0; + if ( k === il ) k = 0; + + // (j)---(i)---(k) + // console.log('i,j,k', i, j , k) + + contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] ); + + } + + const holesMovements = []; + let oneHoleMovements, verticesMovements = contourMovements.concat(); + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + + oneHoleMovements = []; + + for ( let i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) { + + if ( j === il ) j = 0; + if ( k === il ) k = 0; + + // (j)---(i)---(k) + oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] ); + + } + + holesMovements.push( oneHoleMovements ); + verticesMovements = verticesMovements.concat( oneHoleMovements ); + + } + + + // Loop bevelSegments, 1 for the front, 1 for the back + + for ( let b = 0; b < bevelSegments; b ++ ) { + + //for ( b = bevelSegments; b > 0; b -- ) { + + const t = b / bevelSegments; + const z = bevelThickness * Math.cos( t * Math.PI / 2 ); + const bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset; + + // contract shape + + for ( let i = 0, il = contour.length; i < il; i ++ ) { + + const vert = scalePt2( contour[ i ], contourMovements[ i ], bs ); + + v( vert.x, vert.y, - z ); + + } + + // expand holes + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + oneHoleMovements = holesMovements[ h ]; + + for ( let i = 0, il = ahole.length; i < il; i ++ ) { + + const vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs ); + + v( vert.x, vert.y, - z ); + + } + + } + + } + + const bs = bevelSize + bevelOffset; + + // Back facing vertices + + for ( let i = 0; i < vlen; i ++ ) { + + const vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ]; + + if ( ! extrudeByPath ) { + + v( vert.x, vert.y, 0 ); + + } else { + + // v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x ); + + normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x ); + binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y ); + + position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal ); + + v( position2.x, position2.y, position2.z ); + + } + + } + + // Add stepped vertices... + // Including front facing vertices + + for ( let s = 1; s <= steps; s ++ ) { + + for ( let i = 0; i < vlen; i ++ ) { + + const vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ]; + + if ( ! extrudeByPath ) { + + v( vert.x, vert.y, depth / steps * s ); + + } else { + + // v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x ); + + normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x ); + binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y ); + + position2.copy( extrudePts[ s ] ).add( normal ).add( binormal ); + + v( position2.x, position2.y, position2.z ); + + } + + } + + } + + + // Add bevel segments planes + + //for ( b = 1; b <= bevelSegments; b ++ ) { + for ( let b = bevelSegments - 1; b >= 0; b -- ) { + + const t = b / bevelSegments; + const z = bevelThickness * Math.cos( t * Math.PI / 2 ); + const bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset; + + // contract shape + + for ( let i = 0, il = contour.length; i < il; i ++ ) { + + const vert = scalePt2( contour[ i ], contourMovements[ i ], bs ); + v( vert.x, vert.y, depth + z ); + + } + + // expand holes + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + oneHoleMovements = holesMovements[ h ]; + + for ( let i = 0, il = ahole.length; i < il; i ++ ) { + + const vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs ); + + if ( ! extrudeByPath ) { + + v( vert.x, vert.y, depth + z ); + + } else { + + v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z ); + + } + + } + + } + + } + + /* Faces */ + + // Top and bottom faces + + buildLidFaces(); + + // Sides faces + + buildSideFaces(); + + + ///// Internal functions + + function buildLidFaces() { + + const start = verticesArray.length / 3; + + if ( bevelEnabled ) { + + let layer = 0; // steps + 1 + let offset = vlen * layer; + + // Bottom faces + + for ( let i = 0; i < flen; i ++ ) { + + const face = faces[ i ]; + f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset ); + + } + + layer = steps + bevelSegments * 2; + offset = vlen * layer; + + // Top faces + + for ( let i = 0; i < flen; i ++ ) { + + const face = faces[ i ]; + f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset ); + + } + + } else { + + // Bottom faces + + for ( let i = 0; i < flen; i ++ ) { + + const face = faces[ i ]; + f3( face[ 2 ], face[ 1 ], face[ 0 ] ); + + } + + // Top faces + + for ( let i = 0; i < flen; i ++ ) { + + const face = faces[ i ]; + f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps ); + + } + + } + + scope.addGroup( start, verticesArray.length / 3 - start, 0 ); + + } + + // Create faces for the z-sides of the shape + + function buildSideFaces() { + + const start = verticesArray.length / 3; + let layeroffset = 0; + sidewalls( contour, layeroffset ); + layeroffset += contour.length; + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + sidewalls( ahole, layeroffset ); + + //, true + layeroffset += ahole.length; + + } + + + scope.addGroup( start, verticesArray.length / 3 - start, 1 ); + + + } + + function sidewalls( contour, layeroffset ) { + + let i = contour.length; + + while ( -- i >= 0 ) { + + const j = i; + let k = i - 1; + if ( k < 0 ) k = contour.length - 1; + + //console.log('b', i,j, i-1, k,vertices.length); + + for ( let s = 0, sl = ( steps + bevelSegments * 2 ); s < sl; s ++ ) { + + const slen1 = vlen * s; + const slen2 = vlen * ( s + 1 ); + + const a = layeroffset + j + slen1, + b = layeroffset + k + slen1, + c = layeroffset + k + slen2, + d = layeroffset + j + slen2; + + f4( a, b, c, d ); + + } + + } + + } + + function v( x, y, z ) { + + placeholder.push( x ); + placeholder.push( y ); + placeholder.push( z ); + + } + + + function f3( a, b, c ) { + + addVertex( a ); + addVertex( b ); + addVertex( c ); + + const nextIndex = verticesArray.length / 3; + const uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 ); + + addUV( uvs[ 0 ] ); + addUV( uvs[ 1 ] ); + addUV( uvs[ 2 ] ); + + } + + function f4( a, b, c, d ) { + + addVertex( a ); + addVertex( b ); + addVertex( d ); + + addVertex( b ); + addVertex( c ); + addVertex( d ); + + + const nextIndex = verticesArray.length / 3; + const uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 ); + + addUV( uvs[ 0 ] ); + addUV( uvs[ 1 ] ); + addUV( uvs[ 3 ] ); + + addUV( uvs[ 1 ] ); + addUV( uvs[ 2 ] ); + addUV( uvs[ 3 ] ); + + } + + function addVertex( index ) { + + verticesArray.push( placeholder[ index * 3 + 0 ] ); + verticesArray.push( placeholder[ index * 3 + 1 ] ); + verticesArray.push( placeholder[ index * 3 + 2 ] ); + + } + + + function addUV( vector2 ) { + + uvArray.push( vector2.x ); + uvArray.push( vector2.y ); + + } + + } + + } + + toJSON() { + + const data = super.toJSON(); + + const shapes = this.parameters.shapes; + const options = this.parameters.options; + + return toJSON$1( shapes, options, data ); + + } + + static fromJSON( data, shapes ) { + + const geometryShapes = []; + + for ( let j = 0, jl = data.shapes.length; j < jl; j ++ ) { + + const shape = shapes[ data.shapes[ j ] ]; + + geometryShapes.push( shape ); + + } + + const extrudePath = data.options.extrudePath; + + if ( extrudePath !== undefined ) { + + data.options.extrudePath = new Curves[ extrudePath.type ]().fromJSON( extrudePath ); + + } + + return new ExtrudeGeometry( geometryShapes, data.options ); + + } + +} + +const WorldUVGenerator = { + + generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) { + + const a_x = vertices[ indexA * 3 ]; + const a_y = vertices[ indexA * 3 + 1 ]; + const b_x = vertices[ indexB * 3 ]; + const b_y = vertices[ indexB * 3 + 1 ]; + const c_x = vertices[ indexC * 3 ]; + const c_y = vertices[ indexC * 3 + 1 ]; + + return [ + new Vector2( a_x, a_y ), + new Vector2( b_x, b_y ), + new Vector2( c_x, c_y ) + ]; + + }, + + generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) { + + const a_x = vertices[ indexA * 3 ]; + const a_y = vertices[ indexA * 3 + 1 ]; + const a_z = vertices[ indexA * 3 + 2 ]; + const b_x = vertices[ indexB * 3 ]; + const b_y = vertices[ indexB * 3 + 1 ]; + const b_z = vertices[ indexB * 3 + 2 ]; + const c_x = vertices[ indexC * 3 ]; + const c_y = vertices[ indexC * 3 + 1 ]; + const c_z = vertices[ indexC * 3 + 2 ]; + const d_x = vertices[ indexD * 3 ]; + const d_y = vertices[ indexD * 3 + 1 ]; + const d_z = vertices[ indexD * 3 + 2 ]; + + if ( Math.abs( a_y - b_y ) < Math.abs( a_x - b_x ) ) { + + return [ + new Vector2( a_x, 1 - a_z ), + new Vector2( b_x, 1 - b_z ), + new Vector2( c_x, 1 - c_z ), + new Vector2( d_x, 1 - d_z ) + ]; + + } else { + + return [ + new Vector2( a_y, 1 - a_z ), + new Vector2( b_y, 1 - b_z ), + new Vector2( c_y, 1 - c_z ), + new Vector2( d_y, 1 - d_z ) + ]; + + } + + } + +}; + +function toJSON$1( shapes, options, data ) { + + data.shapes = []; + + if ( Array.isArray( shapes ) ) { + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + + data.shapes.push( shape.uuid ); + + } + + } else { + + data.shapes.push( shapes.uuid ); + + } + + if ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON(); + + return data; + +} + +class IcosahedronGeometry extends PolyhedronGeometry { + + constructor( radius = 1, detail = 0 ) { + + const t = ( 1 + Math.sqrt( 5 ) ) / 2; + + const vertices = [ + - 1, t, 0, 1, t, 0, - 1, - t, 0, 1, - t, 0, + 0, - 1, t, 0, 1, t, 0, - 1, - t, 0, 1, - t, + t, 0, - 1, t, 0, 1, - t, 0, - 1, - t, 0, 1 + ]; + + const indices = [ + 0, 11, 5, 0, 5, 1, 0, 1, 7, 0, 7, 10, 0, 10, 11, + 1, 5, 9, 5, 11, 4, 11, 10, 2, 10, 7, 6, 7, 1, 8, + 3, 9, 4, 3, 4, 2, 3, 2, 6, 3, 6, 8, 3, 8, 9, + 4, 9, 5, 2, 4, 11, 6, 2, 10, 8, 6, 7, 9, 8, 1 + ]; + + super( vertices, indices, radius, detail ); + + this.type = 'IcosahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + + static fromJSON( data ) { + + return new IcosahedronGeometry( data.radius, data.detail ); + + } + +} + +class LatheGeometry extends BufferGeometry { + + constructor( points = [ new Vector2( 0, 0.5 ), new Vector2( 0.5, 0 ), new Vector2( 0, - 0.5 ) ], segments = 12, phiStart = 0, phiLength = Math.PI * 2 ) { + + super(); + + this.type = 'LatheGeometry'; + + this.parameters = { + points: points, + segments: segments, + phiStart: phiStart, + phiLength: phiLength + }; + + segments = Math.floor( segments ); + + // clamp phiLength so it's in range of [ 0, 2PI ] + + phiLength = clamp( phiLength, 0, Math.PI * 2 ); + + // buffers + + const indices = []; + const vertices = []; + const uvs = []; + + // helper variables + + const inverseSegments = 1.0 / segments; + const vertex = new Vector3(); + const uv = new Vector2(); + + // generate vertices and uvs + + for ( let i = 0; i <= segments; i ++ ) { + + const phi = phiStart + i * inverseSegments * phiLength; + + const sin = Math.sin( phi ); + const cos = Math.cos( phi ); + + for ( let j = 0; j <= ( points.length - 1 ); j ++ ) { + + // vertex + + vertex.x = points[ j ].x * sin; + vertex.y = points[ j ].y; + vertex.z = points[ j ].x * cos; + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // uv + + uv.x = i / segments; + uv.y = j / ( points.length - 1 ); + + uvs.push( uv.x, uv.y ); + + + } + + } + + // indices + + for ( let i = 0; i < segments; i ++ ) { + + for ( let j = 0; j < ( points.length - 1 ); j ++ ) { + + const base = j + i * points.length; + + const a = base; + const b = base + points.length; + const c = base + points.length + 1; + const d = base + 1; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + // generate normals + + this.computeVertexNormals(); + + // if the geometry is closed, we need to average the normals along the seam. + // because the corresponding vertices are identical (but still have different UVs). + + if ( phiLength === Math.PI * 2 ) { + + const normals = this.attributes.normal.array; + const n1 = new Vector3(); + const n2 = new Vector3(); + const n = new Vector3(); + + // this is the buffer offset for the last line of vertices + + const base = segments * points.length * 3; + + for ( let i = 0, j = 0; i < points.length; i ++, j += 3 ) { + + // select the normal of the vertex in the first line + + n1.x = normals[ j + 0 ]; + n1.y = normals[ j + 1 ]; + n1.z = normals[ j + 2 ]; + + // select the normal of the vertex in the last line + + n2.x = normals[ base + j + 0 ]; + n2.y = normals[ base + j + 1 ]; + n2.z = normals[ base + j + 2 ]; + + // average normals + + n.addVectors( n1, n2 ).normalize(); + + // assign the new values to both normals + + normals[ j + 0 ] = normals[ base + j + 0 ] = n.x; + normals[ j + 1 ] = normals[ base + j + 1 ] = n.y; + normals[ j + 2 ] = normals[ base + j + 2 ] = n.z; + + } + + } + + } + + static fromJSON( data ) { + + return new LatheGeometry( data.points, data.segments, data.phiStart, data.phiLength ); + + } + +} + +class OctahedronGeometry extends PolyhedronGeometry { + + constructor( radius = 1, detail = 0 ) { + + const vertices = [ + 1, 0, 0, - 1, 0, 0, 0, 1, 0, + 0, - 1, 0, 0, 0, 1, 0, 0, - 1 + ]; + + const indices = [ + 0, 2, 4, 0, 4, 3, 0, 3, 5, + 0, 5, 2, 1, 2, 5, 1, 5, 3, + 1, 3, 4, 1, 4, 2 + ]; + + super( vertices, indices, radius, detail ); + + this.type = 'OctahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + + static fromJSON( data ) { + + return new OctahedronGeometry( data.radius, data.detail ); + + } + +} + +class RingGeometry extends BufferGeometry { + + constructor( innerRadius = 0.5, outerRadius = 1, thetaSegments = 8, phiSegments = 1, thetaStart = 0, thetaLength = Math.PI * 2 ) { + + super(); + + this.type = 'RingGeometry'; + + this.parameters = { + innerRadius: innerRadius, + outerRadius: outerRadius, + thetaSegments: thetaSegments, + phiSegments: phiSegments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + thetaSegments = Math.max( 3, thetaSegments ); + phiSegments = Math.max( 1, phiSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // some helper variables + + let radius = innerRadius; + const radiusStep = ( ( outerRadius - innerRadius ) / phiSegments ); + const vertex = new Vector3(); + const uv = new Vector2(); + + // generate vertices, normals and uvs + + for ( let j = 0; j <= phiSegments; j ++ ) { + + for ( let i = 0; i <= thetaSegments; i ++ ) { + + // values are generate from the inside of the ring to the outside + + const segment = thetaStart + i / thetaSegments * thetaLength; + + // vertex + + vertex.x = radius * Math.cos( segment ); + vertex.y = radius * Math.sin( segment ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normals.push( 0, 0, 1 ); + + // uv + + uv.x = ( vertex.x / outerRadius + 1 ) / 2; + uv.y = ( vertex.y / outerRadius + 1 ) / 2; + + uvs.push( uv.x, uv.y ); + + } + + // increase the radius for next row of vertices + + radius += radiusStep; + + } + + // indices + + for ( let j = 0; j < phiSegments; j ++ ) { + + const thetaSegmentLevel = j * ( thetaSegments + 1 ); + + for ( let i = 0; i < thetaSegments; i ++ ) { + + const segment = i + thetaSegmentLevel; + + const a = segment; + const b = segment + thetaSegments + 1; + const c = segment + thetaSegments + 2; + const d = segment + 1; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + + static fromJSON( data ) { + + return new RingGeometry( data.innerRadius, data.outerRadius, data.thetaSegments, data.phiSegments, data.thetaStart, data.thetaLength ); + + } + +} + +class ShapeGeometry extends BufferGeometry { + + constructor( shapes = new Shape( [ new Vector2( 0, 0.5 ), new Vector2( - 0.5, - 0.5 ), new Vector2( 0.5, - 0.5 ) ] ), curveSegments = 12 ) { + + super(); + this.type = 'ShapeGeometry'; + + this.parameters = { + shapes: shapes, + curveSegments: curveSegments + }; + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + let groupStart = 0; + let groupCount = 0; + + // allow single and array values for "shapes" parameter + + if ( Array.isArray( shapes ) === false ) { + + addShape( shapes ); + + } else { + + for ( let i = 0; i < shapes.length; i ++ ) { + + addShape( shapes[ i ] ); + + this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support + + groupStart += groupCount; + groupCount = 0; + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + + // helper functions + + function addShape( shape ) { + + const indexOffset = vertices.length / 3; + const points = shape.extractPoints( curveSegments ); + + let shapeVertices = points.shape; + const shapeHoles = points.holes; + + // check direction of vertices + + if ( ShapeUtils.isClockWise( shapeVertices ) === false ) { + + shapeVertices = shapeVertices.reverse(); + + } + + for ( let i = 0, l = shapeHoles.length; i < l; i ++ ) { + + const shapeHole = shapeHoles[ i ]; + + if ( ShapeUtils.isClockWise( shapeHole ) === true ) { + + shapeHoles[ i ] = shapeHole.reverse(); + + } + + } + + const faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles ); + + // join vertices of inner and outer paths to a single array + + for ( let i = 0, l = shapeHoles.length; i < l; i ++ ) { + + const shapeHole = shapeHoles[ i ]; + shapeVertices = shapeVertices.concat( shapeHole ); + + } + + // vertices, normals, uvs + + for ( let i = 0, l = shapeVertices.length; i < l; i ++ ) { + + const vertex = shapeVertices[ i ]; + + vertices.push( vertex.x, vertex.y, 0 ); + normals.push( 0, 0, 1 ); + uvs.push( vertex.x, vertex.y ); // world uvs + + } + + // incides + + for ( let i = 0, l = faces.length; i < l; i ++ ) { + + const face = faces[ i ]; + + const a = face[ 0 ] + indexOffset; + const b = face[ 1 ] + indexOffset; + const c = face[ 2 ] + indexOffset; + + indices.push( a, b, c ); + groupCount += 3; + + } + + } + + } + + toJSON() { + + const data = super.toJSON(); + + const shapes = this.parameters.shapes; + + return toJSON( shapes, data ); + + } + + static fromJSON( data, shapes ) { + + const geometryShapes = []; + + for ( let j = 0, jl = data.shapes.length; j < jl; j ++ ) { + + const shape = shapes[ data.shapes[ j ] ]; + + geometryShapes.push( shape ); + + } + + return new ShapeGeometry( geometryShapes, data.curveSegments ); + + } + +} + +function toJSON( shapes, data ) { + + data.shapes = []; + + if ( Array.isArray( shapes ) ) { + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + + data.shapes.push( shape.uuid ); + + } + + } else { + + data.shapes.push( shapes.uuid ); + + } + + return data; + +} + +class SphereGeometry extends BufferGeometry { + + constructor( radius = 1, widthSegments = 32, heightSegments = 16, phiStart = 0, phiLength = Math.PI * 2, thetaStart = 0, thetaLength = Math.PI ) { + + super(); + this.type = 'SphereGeometry'; + + this.parameters = { + radius: radius, + widthSegments: widthSegments, + heightSegments: heightSegments, + phiStart: phiStart, + phiLength: phiLength, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + widthSegments = Math.max( 3, Math.floor( widthSegments ) ); + heightSegments = Math.max( 2, Math.floor( heightSegments ) ); + + const thetaEnd = Math.min( thetaStart + thetaLength, Math.PI ); + + let index = 0; + const grid = []; + + const vertex = new Vector3(); + const normal = new Vector3(); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // generate vertices, normals and uvs + + for ( let iy = 0; iy <= heightSegments; iy ++ ) { + + const verticesRow = []; + + const v = iy / heightSegments; + + // special case for the poles + + let uOffset = 0; + + if ( iy == 0 && thetaStart == 0 ) { + + uOffset = 0.5 / widthSegments; + + } else if ( iy == heightSegments && thetaEnd == Math.PI ) { + + uOffset = - 0.5 / widthSegments; + + } + + for ( let ix = 0; ix <= widthSegments; ix ++ ) { + + const u = ix / widthSegments; + + // vertex + + vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength ); + vertex.y = radius * Math.cos( thetaStart + v * thetaLength ); + vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normal.copy( vertex ).normalize(); + normals.push( normal.x, normal.y, normal.z ); + + // uv + + uvs.push( u + uOffset, 1 - v ); + + verticesRow.push( index ++ ); + + } + + grid.push( verticesRow ); + + } + + // indices + + for ( let iy = 0; iy < heightSegments; iy ++ ) { + + for ( let ix = 0; ix < widthSegments; ix ++ ) { + + const a = grid[ iy ][ ix + 1 ]; + const b = grid[ iy ][ ix ]; + const c = grid[ iy + 1 ][ ix ]; + const d = grid[ iy + 1 ][ ix + 1 ]; + + if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d ); + if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + + static fromJSON( data ) { + + return new SphereGeometry( data.radius, data.widthSegments, data.heightSegments, data.phiStart, data.phiLength, data.thetaStart, data.thetaLength ); + + } + +} + +class TetrahedronGeometry extends PolyhedronGeometry { + + constructor( radius = 1, detail = 0 ) { + + const vertices = [ + 1, 1, 1, - 1, - 1, 1, - 1, 1, - 1, 1, - 1, - 1 + ]; + + const indices = [ + 2, 1, 0, 0, 3, 2, 1, 3, 0, 2, 3, 1 + ]; + + super( vertices, indices, radius, detail ); + + this.type = 'TetrahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + + static fromJSON( data ) { + + return new TetrahedronGeometry( data.radius, data.detail ); + + } + +} + +class TorusGeometry extends BufferGeometry { + + constructor( radius = 1, tube = 0.4, radialSegments = 8, tubularSegments = 6, arc = Math.PI * 2 ) { + + super(); + this.type = 'TorusGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + radialSegments: radialSegments, + tubularSegments: tubularSegments, + arc: arc + }; + + radialSegments = Math.floor( radialSegments ); + tubularSegments = Math.floor( tubularSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + const center = new Vector3(); + const vertex = new Vector3(); + const normal = new Vector3(); + + // generate vertices, normals and uvs + + for ( let j = 0; j <= radialSegments; j ++ ) { + + for ( let i = 0; i <= tubularSegments; i ++ ) { + + const u = i / tubularSegments * arc; + const v = j / radialSegments * Math.PI * 2; + + // vertex + + vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u ); + vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u ); + vertex.z = tube * Math.sin( v ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + center.x = radius * Math.cos( u ); + center.y = radius * Math.sin( u ); + normal.subVectors( vertex, center ).normalize(); + + normals.push( normal.x, normal.y, normal.z ); + + // uv + + uvs.push( i / tubularSegments ); + uvs.push( j / radialSegments ); + + } + + } + + // generate indices + + for ( let j = 1; j <= radialSegments; j ++ ) { + + for ( let i = 1; i <= tubularSegments; i ++ ) { + + // indices + + const a = ( tubularSegments + 1 ) * j + i - 1; + const b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1; + const c = ( tubularSegments + 1 ) * ( j - 1 ) + i; + const d = ( tubularSegments + 1 ) * j + i; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + + static fromJSON( data ) { + + return new TorusGeometry( data.radius, data.tube, data.radialSegments, data.tubularSegments, data.arc ); + + } + +} + +class TorusKnotGeometry extends BufferGeometry { + + constructor( radius = 1, tube = 0.4, tubularSegments = 64, radialSegments = 8, p = 2, q = 3 ) { + + super(); + this.type = 'TorusKnotGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + tubularSegments: tubularSegments, + radialSegments: radialSegments, + p: p, + q: q + }; + + tubularSegments = Math.floor( tubularSegments ); + radialSegments = Math.floor( radialSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + const vertex = new Vector3(); + const normal = new Vector3(); + + const P1 = new Vector3(); + const P2 = new Vector3(); + + const B = new Vector3(); + const T = new Vector3(); + const N = new Vector3(); + + // generate vertices, normals and uvs + + for ( let i = 0; i <= tubularSegments; ++ i ) { + + // the radian "u" is used to calculate the position on the torus curve of the current tubular segement + + const u = i / tubularSegments * p * Math.PI * 2; + + // now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead. + // these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions + + calculatePositionOnCurve( u, p, q, radius, P1 ); + calculatePositionOnCurve( u + 0.01, p, q, radius, P2 ); + + // calculate orthonormal basis + + T.subVectors( P2, P1 ); + N.addVectors( P2, P1 ); + B.crossVectors( T, N ); + N.crossVectors( B, T ); + + // normalize B, N. T can be ignored, we don't use it + + B.normalize(); + N.normalize(); + + for ( let j = 0; j <= radialSegments; ++ j ) { + + // now calculate the vertices. they are nothing more than an extrusion of the torus curve. + // because we extrude a shape in the xy-plane, there is no need to calculate a z-value. + + const v = j / radialSegments * Math.PI * 2; + const cx = - tube * Math.cos( v ); + const cy = tube * Math.sin( v ); + + // now calculate the final vertex position. + // first we orient the extrusion with our basis vectos, then we add it to the current position on the curve + + vertex.x = P1.x + ( cx * N.x + cy * B.x ); + vertex.y = P1.y + ( cx * N.y + cy * B.y ); + vertex.z = P1.z + ( cx * N.z + cy * B.z ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal) + + normal.subVectors( vertex, P1 ).normalize(); + + normals.push( normal.x, normal.y, normal.z ); + + // uv + + uvs.push( i / tubularSegments ); + uvs.push( j / radialSegments ); + + } + + } + + // generate indices + + for ( let j = 1; j <= tubularSegments; j ++ ) { + + for ( let i = 1; i <= radialSegments; i ++ ) { + + // indices + + const a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 ); + const b = ( radialSegments + 1 ) * j + ( i - 1 ); + const c = ( radialSegments + 1 ) * j + i; + const d = ( radialSegments + 1 ) * ( j - 1 ) + i; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + // this function calculates the current position on the torus curve + + function calculatePositionOnCurve( u, p, q, radius, position ) { + + const cu = Math.cos( u ); + const su = Math.sin( u ); + const quOverP = q / p * u; + const cs = Math.cos( quOverP ); + + position.x = radius * ( 2 + cs ) * 0.5 * cu; + position.y = radius * ( 2 + cs ) * su * 0.5; + position.z = radius * Math.sin( quOverP ) * 0.5; + + } + + } + + static fromJSON( data ) { + + return new TorusKnotGeometry( data.radius, data.tube, data.tubularSegments, data.radialSegments, data.p, data.q ); + + } + +} + +class TubeGeometry extends BufferGeometry { + + constructor( path = new QuadraticBezierCurve3( new Vector3( - 1, - 1, 0 ), new Vector3( - 1, 1, 0 ), new Vector3( 1, 1, 0 ) ), tubularSegments = 64, radius = 1, radialSegments = 8, closed = false ) { + + super(); + this.type = 'TubeGeometry'; + + this.parameters = { + path: path, + tubularSegments: tubularSegments, + radius: radius, + radialSegments: radialSegments, + closed: closed + }; + + const frames = path.computeFrenetFrames( tubularSegments, closed ); + + // expose internals + + this.tangents = frames.tangents; + this.normals = frames.normals; + this.binormals = frames.binormals; + + // helper variables + + const vertex = new Vector3(); + const normal = new Vector3(); + const uv = new Vector2(); + let P = new Vector3(); + + // buffer + + const vertices = []; + const normals = []; + const uvs = []; + const indices = []; + + // create buffer data + + generateBufferData(); + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + // functions + + function generateBufferData() { + + for ( let i = 0; i < tubularSegments; i ++ ) { + + generateSegment( i ); + + } + + // if the geometry is not closed, generate the last row of vertices and normals + // at the regular position on the given path + // + // if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ) + + generateSegment( ( closed === false ) ? tubularSegments : 0 ); + + // uvs are generated in a separate function. + // this makes it easy compute correct values for closed geometries + + generateUVs(); + + // finally create faces + + generateIndices(); + + } + + function generateSegment( i ) { + + // we use getPointAt to sample evenly distributed points from the given path + + P = path.getPointAt( i / tubularSegments, P ); + + // retrieve corresponding normal and binormal + + const N = frames.normals[ i ]; + const B = frames.binormals[ i ]; + + // generate normals and vertices for the current segment + + for ( let j = 0; j <= radialSegments; j ++ ) { + + const v = j / radialSegments * Math.PI * 2; + + const sin = Math.sin( v ); + const cos = - Math.cos( v ); + + // normal + + normal.x = ( cos * N.x + sin * B.x ); + normal.y = ( cos * N.y + sin * B.y ); + normal.z = ( cos * N.z + sin * B.z ); + normal.normalize(); + + normals.push( normal.x, normal.y, normal.z ); + + // vertex + + vertex.x = P.x + radius * normal.x; + vertex.y = P.y + radius * normal.y; + vertex.z = P.z + radius * normal.z; + + vertices.push( vertex.x, vertex.y, vertex.z ); + + } + + } + + function generateIndices() { + + for ( let j = 1; j <= tubularSegments; j ++ ) { + + for ( let i = 1; i <= radialSegments; i ++ ) { + + const a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 ); + const b = ( radialSegments + 1 ) * j + ( i - 1 ); + const c = ( radialSegments + 1 ) * j + i; + const d = ( radialSegments + 1 ) * ( j - 1 ) + i; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + } + + function generateUVs() { + + for ( let i = 0; i <= tubularSegments; i ++ ) { + + for ( let j = 0; j <= radialSegments; j ++ ) { + + uv.x = i / tubularSegments; + uv.y = j / radialSegments; + + uvs.push( uv.x, uv.y ); + + } + + } + + } + + } + + toJSON() { + + const data = super.toJSON(); + + data.path = this.parameters.path.toJSON(); + + return data; + + } + + static fromJSON( data ) { + + // This only works for built-in curves (e.g. CatmullRomCurve3). + // User defined curves or instances of CurvePath will not be deserialized. + return new TubeGeometry( + new Curves[ data.path.type ]().fromJSON( data.path ), + data.tubularSegments, + data.radius, + data.radialSegments, + data.closed + ); + + } + +} + +class WireframeGeometry extends BufferGeometry { + + constructor( geometry = null ) { + + super(); + this.type = 'WireframeGeometry'; + + this.parameters = { + geometry: geometry + }; + + if ( geometry !== null ) { + + // buffer + + const vertices = []; + const edges = new Set(); + + // helper variables + + const start = new Vector3(); + const end = new Vector3(); + + if ( geometry.index !== null ) { + + // indexed BufferGeometry + + const position = geometry.attributes.position; + const indices = geometry.index; + let groups = geometry.groups; + + if ( groups.length === 0 ) { + + groups = [ { start: 0, count: indices.count, materialIndex: 0 } ]; + + } + + // create a data structure that contains all eges without duplicates + + for ( let o = 0, ol = groups.length; o < ol; ++ o ) { + + const group = groups[ o ]; + + const groupStart = group.start; + const groupCount = group.count; + + for ( let i = groupStart, l = ( groupStart + groupCount ); i < l; i += 3 ) { + + for ( let j = 0; j < 3; j ++ ) { + + const index1 = indices.getX( i + j ); + const index2 = indices.getX( i + ( j + 1 ) % 3 ); + + start.fromBufferAttribute( position, index1 ); + end.fromBufferAttribute( position, index2 ); + + if ( isUniqueEdge( start, end, edges ) === true ) { + + vertices.push( start.x, start.y, start.z ); + vertices.push( end.x, end.y, end.z ); + + } + + } + + } + + } + + } else { + + // non-indexed BufferGeometry + + const position = geometry.attributes.position; + + for ( let i = 0, l = ( position.count / 3 ); i < l; i ++ ) { + + for ( let j = 0; j < 3; j ++ ) { + + // three edges per triangle, an edge is represented as (index1, index2) + // e.g. the first triangle has the following edges: (0,1),(1,2),(2,0) + + const index1 = 3 * i + j; + const index2 = 3 * i + ( ( j + 1 ) % 3 ); + + start.fromBufferAttribute( position, index1 ); + end.fromBufferAttribute( position, index2 ); + + if ( isUniqueEdge( start, end, edges ) === true ) { + + vertices.push( start.x, start.y, start.z ); + vertices.push( end.x, end.y, end.z ); + + } + + } + + } + + } + + // build geometry + + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + + } + + } + +} + +function isUniqueEdge( start, end, edges ) { + + const hash1 = `${start.x},${start.y},${start.z}-${end.x},${end.y},${end.z}`; + const hash2 = `${end.x},${end.y},${end.z}-${start.x},${start.y},${start.z}`; // coincident edge + + if ( edges.has( hash1 ) === true || edges.has( hash2 ) === true ) { + + return false; + + } else { + + edges.add( hash1, hash2 ); + return true; + + } + +} + +var Geometries = /*#__PURE__*/Object.freeze({ + __proto__: null, + BoxGeometry: BoxGeometry, + BoxBufferGeometry: BoxGeometry, + CircleGeometry: CircleGeometry, + CircleBufferGeometry: CircleGeometry, + ConeGeometry: ConeGeometry, + ConeBufferGeometry: ConeGeometry, + CylinderGeometry: CylinderGeometry, + CylinderBufferGeometry: CylinderGeometry, + DodecahedronGeometry: DodecahedronGeometry, + DodecahedronBufferGeometry: DodecahedronGeometry, + EdgesGeometry: EdgesGeometry, + ExtrudeGeometry: ExtrudeGeometry, + ExtrudeBufferGeometry: ExtrudeGeometry, + IcosahedronGeometry: IcosahedronGeometry, + IcosahedronBufferGeometry: IcosahedronGeometry, + LatheGeometry: LatheGeometry, + LatheBufferGeometry: LatheGeometry, + OctahedronGeometry: OctahedronGeometry, + OctahedronBufferGeometry: OctahedronGeometry, + PlaneGeometry: PlaneGeometry, + PlaneBufferGeometry: PlaneGeometry, + PolyhedronGeometry: PolyhedronGeometry, + PolyhedronBufferGeometry: PolyhedronGeometry, + RingGeometry: RingGeometry, + RingBufferGeometry: RingGeometry, + ShapeGeometry: ShapeGeometry, + ShapeBufferGeometry: ShapeGeometry, + SphereGeometry: SphereGeometry, + SphereBufferGeometry: SphereGeometry, + TetrahedronGeometry: TetrahedronGeometry, + TetrahedronBufferGeometry: TetrahedronGeometry, + TorusGeometry: TorusGeometry, + TorusBufferGeometry: TorusGeometry, + TorusKnotGeometry: TorusKnotGeometry, + TorusKnotBufferGeometry: TorusKnotGeometry, + TubeGeometry: TubeGeometry, + TubeBufferGeometry: TubeGeometry, + WireframeGeometry: WireframeGeometry +}); + +/** + * parameters = { + * color: + * } + */ + +class ShadowMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'ShadowMaterial'; + + this.color = new Color( 0x000000 ); + this.transparent = true; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.color.copy( source.color ); + + return this; + + } + +} + +ShadowMaterial.prototype.isShadowMaterial = true; + +/** + * parameters = { + * color: , + * roughness: , + * metalness: , + * opacity: , + * + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * roughnessMap: new THREE.Texture( ), + * + * metalnessMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ), + * envMapIntensity: + * + * refractionRatio: , + * + * wireframe: , + * wireframeLinewidth: , + * + * flatShading: + * } + */ + +class MeshStandardMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.defines = { 'STANDARD': '' }; + + this.type = 'MeshStandardMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + this.roughness = 1.0; + this.metalness = 0.0; + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.roughnessMap = null; + + this.metalnessMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.envMapIntensity = 1.0; + + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.flatShading = false; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.defines = { 'STANDARD': '' }; + + this.color.copy( source.color ); + this.roughness = source.roughness; + this.metalness = source.metalness; + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.roughnessMap = source.roughnessMap; + + this.metalnessMap = source.metalnessMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.envMapIntensity = source.envMapIntensity; + + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.flatShading = source.flatShading; + + return this; + + } + +} + +MeshStandardMaterial.prototype.isMeshStandardMaterial = true; + +/** + * parameters = { + * clearcoat: , + * clearcoatMap: new THREE.Texture( ), + * clearcoatRoughness: , + * clearcoatRoughnessMap: new THREE.Texture( ), + * clearcoatNormalScale: , + * clearcoatNormalMap: new THREE.Texture( ), + * + * ior: , + * reflectivity: , + * + * sheen: , + * sheenColor: , + * sheenColorMap: new THREE.Texture( ), + * sheenRoughness: , + * sheenRoughnessMap: new THREE.Texture( ), + * + * transmission: , + * transmissionMap: new THREE.Texture( ), + * + * thickness: , + * thicknessMap: new THREE.Texture( ), + * attenuationDistance: , + * attenuationColor: , + * + * specularIntensity: , + * specularIntensityMap: new THREE.Texture( ), + * specularColor: , + * specularColorMap: new THREE.Texture( ) + * } + */ + +class MeshPhysicalMaterial extends MeshStandardMaterial { + + constructor( parameters ) { + + super(); + + this.defines = { + + 'STANDARD': '', + 'PHYSICAL': '' + + }; + + this.type = 'MeshPhysicalMaterial'; + + this.clearcoatMap = null; + this.clearcoatRoughness = 0.0; + this.clearcoatRoughnessMap = null; + this.clearcoatNormalScale = new Vector2( 1, 1 ); + this.clearcoatNormalMap = null; + + this.ior = 1.5; + + Object.defineProperty( this, 'reflectivity', { + get: function () { + + return ( clamp( 2.5 * ( this.ior - 1 ) / ( this.ior + 1 ), 0, 1 ) ); + + }, + set: function ( reflectivity ) { + + this.ior = ( 1 + 0.4 * reflectivity ) / ( 1 - 0.4 * reflectivity ); + + } + } ); + + this.sheenColor = new Color( 0x000000 ); + this.sheenColorMap = null; + this.sheenRoughness = 1.0; + this.sheenRoughnessMap = null; + + this.transmissionMap = null; + + this.thickness = 0.01; + this.thicknessMap = null; + this.attenuationDistance = 0.0; + this.attenuationColor = new Color( 1, 1, 1 ); + + this.specularIntensity = 1.0; + this.specularIntensityMap = null; + this.specularColor = new Color( 1, 1, 1 ); + this.specularColorMap = null; + + this._sheen = 0.0; + this._clearcoat = 0; + this._transmission = 0; + + this.setValues( parameters ); + + } + + get sheen() { + + return this._sheen; + + } + + set sheen( value ) { + + if ( this._sheen > 0 !== value > 0 ) { + + this.version ++; + + } + + this._sheen = value; + + } + + get clearcoat() { + + return this._clearcoat; + + } + + set clearcoat( value ) { + + if ( this._clearcoat > 0 !== value > 0 ) { + + this.version ++; + + } + + this._clearcoat = value; + + } + + get transmission() { + + return this._transmission; + + } + + set transmission( value ) { + + if ( this._transmission > 0 !== value > 0 ) { + + this.version ++; + + } + + this._transmission = value; + + } + + copy( source ) { + + super.copy( source ); + + this.defines = { + + 'STANDARD': '', + 'PHYSICAL': '' + + }; + + this.clearcoat = source.clearcoat; + this.clearcoatMap = source.clearcoatMap; + this.clearcoatRoughness = source.clearcoatRoughness; + this.clearcoatRoughnessMap = source.clearcoatRoughnessMap; + this.clearcoatNormalMap = source.clearcoatNormalMap; + this.clearcoatNormalScale.copy( source.clearcoatNormalScale ); + + this.ior = source.ior; + + this.sheen = source.sheen; + this.sheenColor.copy( source.sheenColor ); + this.sheenColorMap = source.sheenColorMap; + this.sheenRoughness = source.sheenRoughness; + this.sheenRoughnessMap = source.sheenRoughnessMap; + + this.transmission = source.transmission; + this.transmissionMap = source.transmissionMap; + + this.thickness = source.thickness; + this.thicknessMap = source.thicknessMap; + this.attenuationDistance = source.attenuationDistance; + this.attenuationColor.copy( source.attenuationColor ); + + this.specularIntensity = source.specularIntensity; + this.specularIntensityMap = source.specularIntensityMap; + this.specularColor.copy( source.specularColor ); + this.specularColorMap = source.specularColorMap; + + return this; + + } + +} + +MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true; + +/** + * parameters = { + * color: , + * specular: , + * shininess: , + * opacity: , + * + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * specularMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ), + * combine: THREE.MultiplyOperation, + * reflectivity: , + * refractionRatio: , + * + * wireframe: , + * wireframeLinewidth: , + * + * flatShading: + * } + */ + +class MeshPhongMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'MeshPhongMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + this.specular = new Color( 0x111111 ); + this.shininess = 30; + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.specularMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.combine = MultiplyOperation; + this.reflectivity = 1; + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.flatShading = false; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.color.copy( source.color ); + this.specular.copy( source.specular ); + this.shininess = source.shininess; + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.specularMap = source.specularMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.combine = source.combine; + this.reflectivity = source.reflectivity; + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.flatShading = source.flatShading; + + return this; + + } + +} + +MeshPhongMaterial.prototype.isMeshPhongMaterial = true; + +/** + * parameters = { + * color: , + * + * map: new THREE.Texture( ), + * gradientMap: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * alphaMap: new THREE.Texture( ), + * + * wireframe: , + * wireframeLinewidth: , + * + * } + */ + +class MeshToonMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.defines = { 'TOON': '' }; + + this.type = 'MeshToonMaterial'; + + this.color = new Color( 0xffffff ); + + this.map = null; + this.gradientMap = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.alphaMap = null; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.color.copy( source.color ); + + this.map = source.map; + this.gradientMap = source.gradientMap; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.alphaMap = source.alphaMap; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + return this; + + } + +} + +MeshToonMaterial.prototype.isMeshToonMaterial = true; + +/** + * parameters = { + * opacity: , + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * wireframe: , + * wireframeLinewidth: + * + * flatShading: + * } + */ + +class MeshNormalMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'MeshNormalMaterial'; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.wireframe = false; + this.wireframeLinewidth = 1; + + this.fog = false; + + this.flatShading = false; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + + this.flatShading = source.flatShading; + + return this; + + } + +} + +MeshNormalMaterial.prototype.isMeshNormalMaterial = true; + +/** + * parameters = { + * color: , + * opacity: , + * + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * specularMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ), + * combine: THREE.Multiply, + * reflectivity: , + * refractionRatio: , + * + * wireframe: , + * wireframeLinewidth: , + * + * } + */ + +class MeshLambertMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.type = 'MeshLambertMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.specularMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.combine = MultiplyOperation; + this.reflectivity = 1; + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.specularMap = source.specularMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.combine = source.combine; + this.reflectivity = source.reflectivity; + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + return this; + + } + +} + +MeshLambertMaterial.prototype.isMeshLambertMaterial = true; + +/** + * parameters = { + * color: , + * opacity: , + * + * matcap: new THREE.Texture( ), + * + * map: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * alphaMap: new THREE.Texture( ), + * + * flatShading: + * } + */ + +class MeshMatcapMaterial extends Material { + + constructor( parameters ) { + + super(); + + this.defines = { 'MATCAP': '' }; + + this.type = 'MeshMatcapMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + + this.matcap = null; + + this.map = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.alphaMap = null; + + this.flatShading = false; + + this.setValues( parameters ); + + } + + + copy( source ) { + + super.copy( source ); + + this.defines = { 'MATCAP': '' }; + + this.color.copy( source.color ); + + this.matcap = source.matcap; + + this.map = source.map; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.alphaMap = source.alphaMap; + + this.flatShading = source.flatShading; + + return this; + + } + +} + +MeshMatcapMaterial.prototype.isMeshMatcapMaterial = true; + +/** + * parameters = { + * color: , + * opacity: , + * + * linewidth: , + * + * scale: , + * dashSize: , + * gapSize: + * } + */ + +class LineDashedMaterial extends LineBasicMaterial { + + constructor( parameters ) { + + super(); + + this.type = 'LineDashedMaterial'; + + this.scale = 1; + this.dashSize = 3; + this.gapSize = 1; + + this.setValues( parameters ); + + } + + copy( source ) { + + super.copy( source ); + + this.scale = source.scale; + this.dashSize = source.dashSize; + this.gapSize = source.gapSize; + + return this; + + } + +} + +LineDashedMaterial.prototype.isLineDashedMaterial = true; + +var Materials = /*#__PURE__*/Object.freeze({ + __proto__: null, + ShadowMaterial: ShadowMaterial, + SpriteMaterial: SpriteMaterial, + RawShaderMaterial: RawShaderMaterial, + ShaderMaterial: ShaderMaterial, + PointsMaterial: PointsMaterial, + MeshPhysicalMaterial: MeshPhysicalMaterial, + MeshStandardMaterial: MeshStandardMaterial, + MeshPhongMaterial: MeshPhongMaterial, + MeshToonMaterial: MeshToonMaterial, + MeshNormalMaterial: MeshNormalMaterial, + MeshLambertMaterial: MeshLambertMaterial, + MeshDepthMaterial: MeshDepthMaterial, + MeshDistanceMaterial: MeshDistanceMaterial, + MeshBasicMaterial: MeshBasicMaterial, + MeshMatcapMaterial: MeshMatcapMaterial, + LineDashedMaterial: LineDashedMaterial, + LineBasicMaterial: LineBasicMaterial, + Material: Material +}); + +const AnimationUtils = { + + // same as Array.prototype.slice, but also works on typed arrays + arraySlice: function ( array, from, to ) { + + if ( AnimationUtils.isTypedArray( array ) ) { + + // in ios9 array.subarray(from, undefined) will return empty array + // but array.subarray(from) or array.subarray(from, len) is correct + return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) ); + + } + + return array.slice( from, to ); + + }, + + // converts an array to a specific type + convertArray: function ( array, type, forceClone ) { + + if ( ! array || // let 'undefined' and 'null' pass + ! forceClone && array.constructor === type ) return array; + + if ( typeof type.BYTES_PER_ELEMENT === 'number' ) { + + return new type( array ); // create typed array + + } + + return Array.prototype.slice.call( array ); // create Array + + }, + + isTypedArray: function ( object ) { + + return ArrayBuffer.isView( object ) && + ! ( object instanceof DataView ); + + }, + + // returns an array by which times and values can be sorted + getKeyframeOrder: function ( times ) { + + function compareTime( i, j ) { + + return times[ i ] - times[ j ]; + + } + + const n = times.length; + const result = new Array( n ); + for ( let i = 0; i !== n; ++ i ) result[ i ] = i; + + result.sort( compareTime ); + + return result; + + }, + + // uses the array previously returned by 'getKeyframeOrder' to sort data + sortedArray: function ( values, stride, order ) { + + const nValues = values.length; + const result = new values.constructor( nValues ); + + for ( let i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) { + + const srcOffset = order[ i ] * stride; + + for ( let j = 0; j !== stride; ++ j ) { + + result[ dstOffset ++ ] = values[ srcOffset + j ]; + + } + + } + + return result; + + }, + + // function for parsing AOS keyframe formats + flattenJSON: function ( jsonKeys, times, values, valuePropertyName ) { + + let i = 1, key = jsonKeys[ 0 ]; + + while ( key !== undefined && key[ valuePropertyName ] === undefined ) { + + key = jsonKeys[ i ++ ]; + + } + + if ( key === undefined ) return; // no data + + let value = key[ valuePropertyName ]; + if ( value === undefined ) return; // no data + + if ( Array.isArray( value ) ) { + + do { + + value = key[ valuePropertyName ]; + + if ( value !== undefined ) { + + times.push( key.time ); + values.push.apply( values, value ); // push all elements + + } + + key = jsonKeys[ i ++ ]; + + } while ( key !== undefined ); + + } else if ( value.toArray !== undefined ) { + + // ...assume THREE.Math-ish + + do { + + value = key[ valuePropertyName ]; + + if ( value !== undefined ) { + + times.push( key.time ); + value.toArray( values, values.length ); + + } + + key = jsonKeys[ i ++ ]; + + } while ( key !== undefined ); + + } else { + + // otherwise push as-is + + do { + + value = key[ valuePropertyName ]; + + if ( value !== undefined ) { + + times.push( key.time ); + values.push( value ); + + } + + key = jsonKeys[ i ++ ]; + + } while ( key !== undefined ); + + } + + }, + + subclip: function ( sourceClip, name, startFrame, endFrame, fps = 30 ) { + + const clip = sourceClip.clone(); + + clip.name = name; + + const tracks = []; + + for ( let i = 0; i < clip.tracks.length; ++ i ) { + + const track = clip.tracks[ i ]; + const valueSize = track.getValueSize(); + + const times = []; + const values = []; + + for ( let j = 0; j < track.times.length; ++ j ) { + + const frame = track.times[ j ] * fps; + + if ( frame < startFrame || frame >= endFrame ) continue; + + times.push( track.times[ j ] ); + + for ( let k = 0; k < valueSize; ++ k ) { + + values.push( track.values[ j * valueSize + k ] ); + + } + + } + + if ( times.length === 0 ) continue; + + track.times = AnimationUtils.convertArray( times, track.times.constructor ); + track.values = AnimationUtils.convertArray( values, track.values.constructor ); + + tracks.push( track ); + + } + + clip.tracks = tracks; + + // find minimum .times value across all tracks in the trimmed clip + + let minStartTime = Infinity; + + for ( let i = 0; i < clip.tracks.length; ++ i ) { + + if ( minStartTime > clip.tracks[ i ].times[ 0 ] ) { + + minStartTime = clip.tracks[ i ].times[ 0 ]; + + } + + } + + // shift all tracks such that clip begins at t=0 + + for ( let i = 0; i < clip.tracks.length; ++ i ) { + + clip.tracks[ i ].shift( - 1 * minStartTime ); + + } + + clip.resetDuration(); + + return clip; + + }, + + makeClipAdditive: function ( targetClip, referenceFrame = 0, referenceClip = targetClip, fps = 30 ) { + + if ( fps <= 0 ) fps = 30; + + const numTracks = referenceClip.tracks.length; + const referenceTime = referenceFrame / fps; + + // Make each track's values relative to the values at the reference frame + for ( let i = 0; i < numTracks; ++ i ) { + + const referenceTrack = referenceClip.tracks[ i ]; + const referenceTrackType = referenceTrack.ValueTypeName; + + // Skip this track if it's non-numeric + if ( referenceTrackType === 'bool' || referenceTrackType === 'string' ) continue; + + // Find the track in the target clip whose name and type matches the reference track + const targetTrack = targetClip.tracks.find( function ( track ) { + + return track.name === referenceTrack.name + && track.ValueTypeName === referenceTrackType; + + } ); + + if ( targetTrack === undefined ) continue; + + let referenceOffset = 0; + const referenceValueSize = referenceTrack.getValueSize(); + + if ( referenceTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline ) { + + referenceOffset = referenceValueSize / 3; + + } + + let targetOffset = 0; + const targetValueSize = targetTrack.getValueSize(); + + if ( targetTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline ) { + + targetOffset = targetValueSize / 3; + + } + + const lastIndex = referenceTrack.times.length - 1; + let referenceValue; + + // Find the value to subtract out of the track + if ( referenceTime <= referenceTrack.times[ 0 ] ) { + + // Reference frame is earlier than the first keyframe, so just use the first keyframe + const startIndex = referenceOffset; + const endIndex = referenceValueSize - referenceOffset; + referenceValue = AnimationUtils.arraySlice( referenceTrack.values, startIndex, endIndex ); + + } else if ( referenceTime >= referenceTrack.times[ lastIndex ] ) { + + // Reference frame is after the last keyframe, so just use the last keyframe + const startIndex = lastIndex * referenceValueSize + referenceOffset; + const endIndex = startIndex + referenceValueSize - referenceOffset; + referenceValue = AnimationUtils.arraySlice( referenceTrack.values, startIndex, endIndex ); + + } else { + + // Interpolate to the reference value + const interpolant = referenceTrack.createInterpolant(); + const startIndex = referenceOffset; + const endIndex = referenceValueSize - referenceOffset; + interpolant.evaluate( referenceTime ); + referenceValue = AnimationUtils.arraySlice( interpolant.resultBuffer, startIndex, endIndex ); + + } + + // Conjugate the quaternion + if ( referenceTrackType === 'quaternion' ) { + + const referenceQuat = new Quaternion().fromArray( referenceValue ).normalize().conjugate(); + referenceQuat.toArray( referenceValue ); + + } + + // Subtract the reference value from all of the track values + + const numTimes = targetTrack.times.length; + for ( let j = 0; j < numTimes; ++ j ) { + + const valueStart = j * targetValueSize + targetOffset; + + if ( referenceTrackType === 'quaternion' ) { + + // Multiply the conjugate for quaternion track types + Quaternion.multiplyQuaternionsFlat( + targetTrack.values, + valueStart, + referenceValue, + 0, + targetTrack.values, + valueStart + ); + + } else { + + const valueEnd = targetValueSize - targetOffset * 2; + + // Subtract each value for all other numeric track types + for ( let k = 0; k < valueEnd; ++ k ) { + + targetTrack.values[ valueStart + k ] -= referenceValue[ k ]; + + } + + } + + } + + } + + targetClip.blendMode = AdditiveAnimationBlendMode; + + return targetClip; + + } + +}; + +/** + * Abstract base class of interpolants over parametric samples. + * + * The parameter domain is one dimensional, typically the time or a path + * along a curve defined by the data. + * + * The sample values can have any dimensionality and derived classes may + * apply special interpretations to the data. + * + * This class provides the interval seek in a Template Method, deferring + * the actual interpolation to derived classes. + * + * Time complexity is O(1) for linear access crossing at most two points + * and O(log N) for random access, where N is the number of positions. + * + * References: + * + * http://www.oodesign.com/template-method-pattern.html + * + */ + +class Interpolant { + + constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + this.parameterPositions = parameterPositions; + this._cachedIndex = 0; + + this.resultBuffer = resultBuffer !== undefined ? + resultBuffer : new sampleValues.constructor( sampleSize ); + this.sampleValues = sampleValues; + this.valueSize = sampleSize; + + this.settings = null; + this.DefaultSettings_ = {}; + + } + + evaluate( t ) { + + const pp = this.parameterPositions; + let i1 = this._cachedIndex, + t1 = pp[ i1 ], + t0 = pp[ i1 - 1 ]; + + validate_interval: { + + seek: { + + let right; + + linear_scan: { + + //- See http://jsperf.com/comparison-to-undefined/3 + //- slower code: + //- + //- if ( t >= t1 || t1 === undefined ) { + forward_scan: if ( ! ( t < t1 ) ) { + + for ( let giveUpAt = i1 + 2; ; ) { + + if ( t1 === undefined ) { + + if ( t < t0 ) break forward_scan; + + // after end + + i1 = pp.length; + this._cachedIndex = i1; + return this.afterEnd_( i1 - 1, t, t0 ); + + } + + if ( i1 === giveUpAt ) break; // this loop + + t0 = t1; + t1 = pp[ ++ i1 ]; + + if ( t < t1 ) { + + // we have arrived at the sought interval + break seek; + + } + + } + + // prepare binary search on the right side of the index + right = pp.length; + break linear_scan; + + } + + //- slower code: + //- if ( t < t0 || t0 === undefined ) { + if ( ! ( t >= t0 ) ) { + + // looping? + + const t1global = pp[ 1 ]; + + if ( t < t1global ) { + + i1 = 2; // + 1, using the scan for the details + t0 = t1global; + + } + + // linear reverse scan + + for ( let giveUpAt = i1 - 2; ; ) { + + if ( t0 === undefined ) { + + // before start + + this._cachedIndex = 0; + return this.beforeStart_( 0, t, t1 ); + + } + + if ( i1 === giveUpAt ) break; // this loop + + t1 = t0; + t0 = pp[ -- i1 - 1 ]; + + if ( t >= t0 ) { + + // we have arrived at the sought interval + break seek; + + } + + } + + // prepare binary search on the left side of the index + right = i1; + i1 = 0; + break linear_scan; + + } + + // the interval is valid + + break validate_interval; + + } // linear scan + + // binary search + + while ( i1 < right ) { + + const mid = ( i1 + right ) >>> 1; + + if ( t < pp[ mid ] ) { + + right = mid; + + } else { + + i1 = mid + 1; + + } + + } + + t1 = pp[ i1 ]; + t0 = pp[ i1 - 1 ]; + + // check boundary cases, again + + if ( t0 === undefined ) { + + this._cachedIndex = 0; + return this.beforeStart_( 0, t, t1 ); + + } + + if ( t1 === undefined ) { + + i1 = pp.length; + this._cachedIndex = i1; + return this.afterEnd_( i1 - 1, t0, t ); + + } + + } // seek + + this._cachedIndex = i1; + + this.intervalChanged_( i1, t0, t1 ); + + } // validate_interval + + return this.interpolate_( i1, t0, t, t1 ); + + } + + getSettings_() { + + return this.settings || this.DefaultSettings_; + + } + + copySampleValue_( index ) { + + // copies a sample value to the result buffer + + const result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + offset = index * stride; + + for ( let i = 0; i !== stride; ++ i ) { + + result[ i ] = values[ offset + i ]; + + } + + return result; + + } + + // Template methods for derived classes: + + interpolate_( /* i1, t0, t, t1 */ ) { + + throw new Error( 'call to abstract method' ); + // implementations shall return this.resultBuffer + + } + + intervalChanged_( /* i1, t0, t1 */ ) { + + // empty + + } + +} + +// ALIAS DEFINITIONS + +Interpolant.prototype.beforeStart_ = Interpolant.prototype.copySampleValue_; +Interpolant.prototype.afterEnd_ = Interpolant.prototype.copySampleValue_; + +/** + * Fast and simple cubic spline interpolant. + * + * It was derived from a Hermitian construction setting the first derivative + * at each sample position to the linear slope between neighboring positions + * over their parameter interval. + */ + +class CubicInterpolant extends Interpolant { + + constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + super( parameterPositions, sampleValues, sampleSize, resultBuffer ); + + this._weightPrev = - 0; + this._offsetPrev = - 0; + this._weightNext = - 0; + this._offsetNext = - 0; + + this.DefaultSettings_ = { + + endingStart: ZeroCurvatureEnding, + endingEnd: ZeroCurvatureEnding + + }; + + } + + intervalChanged_( i1, t0, t1 ) { + + const pp = this.parameterPositions; + let iPrev = i1 - 2, + iNext = i1 + 1, + + tPrev = pp[ iPrev ], + tNext = pp[ iNext ]; + + if ( tPrev === undefined ) { + + switch ( this.getSettings_().endingStart ) { + + case ZeroSlopeEnding: + + // f'(t0) = 0 + iPrev = i1; + tPrev = 2 * t0 - t1; + + break; + + case WrapAroundEnding: + + // use the other end of the curve + iPrev = pp.length - 2; + tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ]; + + break; + + default: // ZeroCurvatureEnding + + // f''(t0) = 0 a.k.a. Natural Spline + iPrev = i1; + tPrev = t1; + + } + + } + + if ( tNext === undefined ) { + + switch ( this.getSettings_().endingEnd ) { + + case ZeroSlopeEnding: + + // f'(tN) = 0 + iNext = i1; + tNext = 2 * t1 - t0; + + break; + + case WrapAroundEnding: + + // use the other end of the curve + iNext = 1; + tNext = t1 + pp[ 1 ] - pp[ 0 ]; + + break; + + default: // ZeroCurvatureEnding + + // f''(tN) = 0, a.k.a. Natural Spline + iNext = i1 - 1; + tNext = t0; + + } + + } + + const halfDt = ( t1 - t0 ) * 0.5, + stride = this.valueSize; + + this._weightPrev = halfDt / ( t0 - tPrev ); + this._weightNext = halfDt / ( tNext - t1 ); + this._offsetPrev = iPrev * stride; + this._offsetNext = iNext * stride; + + } + + interpolate_( i1, t0, t, t1 ) { + + const result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + + o1 = i1 * stride, o0 = o1 - stride, + oP = this._offsetPrev, oN = this._offsetNext, + wP = this._weightPrev, wN = this._weightNext, + + p = ( t - t0 ) / ( t1 - t0 ), + pp = p * p, + ppp = pp * p; + + // evaluate polynomials + + const sP = - wP * ppp + 2 * wP * pp - wP * p; + const s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1; + const s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p; + const sN = wN * ppp - wN * pp; + + // combine data linearly + + for ( let i = 0; i !== stride; ++ i ) { + + result[ i ] = + sP * values[ oP + i ] + + s0 * values[ o0 + i ] + + s1 * values[ o1 + i ] + + sN * values[ oN + i ]; + + } + + return result; + + } + +} + +class LinearInterpolant extends Interpolant { + + constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + super( parameterPositions, sampleValues, sampleSize, resultBuffer ); + + } + + interpolate_( i1, t0, t, t1 ) { + + const result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + + offset1 = i1 * stride, + offset0 = offset1 - stride, + + weight1 = ( t - t0 ) / ( t1 - t0 ), + weight0 = 1 - weight1; + + for ( let i = 0; i !== stride; ++ i ) { + + result[ i ] = + values[ offset0 + i ] * weight0 + + values[ offset1 + i ] * weight1; + + } + + return result; + + } + +} + +/** + * + * Interpolant that evaluates to the sample value at the position preceeding + * the parameter. + */ + +class DiscreteInterpolant extends Interpolant { + + constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + super( parameterPositions, sampleValues, sampleSize, resultBuffer ); + + } + + interpolate_( i1 /*, t0, t, t1 */ ) { + + return this.copySampleValue_( i1 - 1 ); + + } + +} + +class KeyframeTrack { + + constructor( name, times, values, interpolation ) { + + if ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' ); + if ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name ); + + this.name = name; + + this.times = AnimationUtils.convertArray( times, this.TimeBufferType ); + this.values = AnimationUtils.convertArray( values, this.ValueBufferType ); + + this.setInterpolation( interpolation || this.DefaultInterpolation ); + + } + + // Serialization (in static context, because of constructor invocation + // and automatic invocation of .toJSON): + + static toJSON( track ) { + + const trackType = track.constructor; + + let json; + + // derived classes can define a static toJSON method + if ( trackType.toJSON !== this.toJSON ) { + + json = trackType.toJSON( track ); + + } else { + + // by default, we assume the data can be serialized as-is + json = { + + 'name': track.name, + 'times': AnimationUtils.convertArray( track.times, Array ), + 'values': AnimationUtils.convertArray( track.values, Array ) + + }; + + const interpolation = track.getInterpolation(); + + if ( interpolation !== track.DefaultInterpolation ) { + + json.interpolation = interpolation; + + } + + } + + json.type = track.ValueTypeName; // mandatory + + return json; + + } + + InterpolantFactoryMethodDiscrete( result ) { + + return new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result ); + + } + + InterpolantFactoryMethodLinear( result ) { + + return new LinearInterpolant( this.times, this.values, this.getValueSize(), result ); + + } + + InterpolantFactoryMethodSmooth( result ) { + + return new CubicInterpolant( this.times, this.values, this.getValueSize(), result ); + + } + + setInterpolation( interpolation ) { + + let factoryMethod; + + switch ( interpolation ) { + + case InterpolateDiscrete: + + factoryMethod = this.InterpolantFactoryMethodDiscrete; + + break; + + case InterpolateLinear: + + factoryMethod = this.InterpolantFactoryMethodLinear; + + break; + + case InterpolateSmooth: + + factoryMethod = this.InterpolantFactoryMethodSmooth; + + break; + + } + + if ( factoryMethod === undefined ) { + + const message = 'unsupported interpolation for ' + + this.ValueTypeName + ' keyframe track named ' + this.name; + + if ( this.createInterpolant === undefined ) { + + // fall back to default, unless the default itself is messed up + if ( interpolation !== this.DefaultInterpolation ) { + + this.setInterpolation( this.DefaultInterpolation ); + + } else { + + throw new Error( message ); // fatal, in this case + + } + + } + + console.warn( 'THREE.KeyframeTrack:', message ); + return this; + + } + + this.createInterpolant = factoryMethod; + + return this; + + } + + getInterpolation() { + + switch ( this.createInterpolant ) { + + case this.InterpolantFactoryMethodDiscrete: + + return InterpolateDiscrete; + + case this.InterpolantFactoryMethodLinear: + + return InterpolateLinear; + + case this.InterpolantFactoryMethodSmooth: + + return InterpolateSmooth; + + } + + } + + getValueSize() { + + return this.values.length / this.times.length; + + } + + // move all keyframes either forwards or backwards in time + shift( timeOffset ) { + + if ( timeOffset !== 0.0 ) { + + const times = this.times; + + for ( let i = 0, n = times.length; i !== n; ++ i ) { + + times[ i ] += timeOffset; + + } + + } + + return this; + + } + + // scale all keyframe times by a factor (useful for frame <-> seconds conversions) + scale( timeScale ) { + + if ( timeScale !== 1.0 ) { + + const times = this.times; + + for ( let i = 0, n = times.length; i !== n; ++ i ) { + + times[ i ] *= timeScale; + + } + + } + + return this; + + } + + // removes keyframes before and after animation without changing any values within the range [startTime, endTime]. + // IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values + trim( startTime, endTime ) { + + const times = this.times, + nKeys = times.length; + + let from = 0, + to = nKeys - 1; + + while ( from !== nKeys && times[ from ] < startTime ) { + + ++ from; + + } + + while ( to !== - 1 && times[ to ] > endTime ) { + + -- to; + + } + + ++ to; // inclusive -> exclusive bound + + if ( from !== 0 || to !== nKeys ) { + + // empty tracks are forbidden, so keep at least one keyframe + if ( from >= to ) { + + to = Math.max( to, 1 ); + from = to - 1; + + } + + const stride = this.getValueSize(); + this.times = AnimationUtils.arraySlice( times, from, to ); + this.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride ); + + } + + return this; + + } + + // ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable + validate() { + + let valid = true; + + const valueSize = this.getValueSize(); + if ( valueSize - Math.floor( valueSize ) !== 0 ) { + + console.error( 'THREE.KeyframeTrack: Invalid value size in track.', this ); + valid = false; + + } + + const times = this.times, + values = this.values, + + nKeys = times.length; + + if ( nKeys === 0 ) { + + console.error( 'THREE.KeyframeTrack: Track is empty.', this ); + valid = false; + + } + + let prevTime = null; + + for ( let i = 0; i !== nKeys; i ++ ) { + + const currTime = times[ i ]; + + if ( typeof currTime === 'number' && isNaN( currTime ) ) { + + console.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime ); + valid = false; + break; + + } + + if ( prevTime !== null && prevTime > currTime ) { + + console.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime ); + valid = false; + break; + + } + + prevTime = currTime; + + } + + if ( values !== undefined ) { + + if ( AnimationUtils.isTypedArray( values ) ) { + + for ( let i = 0, n = values.length; i !== n; ++ i ) { + + const value = values[ i ]; + + if ( isNaN( value ) ) { + + console.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value ); + valid = false; + break; + + } + + } + + } + + } + + return valid; + + } + + // removes equivalent sequential keys as common in morph target sequences + // (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0) + optimize() { + + // times or values may be shared with other tracks, so overwriting is unsafe + const times = AnimationUtils.arraySlice( this.times ), + values = AnimationUtils.arraySlice( this.values ), + stride = this.getValueSize(), + + smoothInterpolation = this.getInterpolation() === InterpolateSmooth, + + lastIndex = times.length - 1; + + let writeIndex = 1; + + for ( let i = 1; i < lastIndex; ++ i ) { + + let keep = false; + + const time = times[ i ]; + const timeNext = times[ i + 1 ]; + + // remove adjacent keyframes scheduled at the same time + + if ( time !== timeNext && ( i !== 1 || time !== times[ 0 ] ) ) { + + if ( ! smoothInterpolation ) { + + // remove unnecessary keyframes same as their neighbors + + const offset = i * stride, + offsetP = offset - stride, + offsetN = offset + stride; + + for ( let j = 0; j !== stride; ++ j ) { + + const value = values[ offset + j ]; + + if ( value !== values[ offsetP + j ] || + value !== values[ offsetN + j ] ) { + + keep = true; + break; + + } + + } + + } else { + + keep = true; + + } + + } + + // in-place compaction + + if ( keep ) { + + if ( i !== writeIndex ) { + + times[ writeIndex ] = times[ i ]; + + const readOffset = i * stride, + writeOffset = writeIndex * stride; + + for ( let j = 0; j !== stride; ++ j ) { + + values[ writeOffset + j ] = values[ readOffset + j ]; + + } + + } + + ++ writeIndex; + + } + + } + + // flush last keyframe (compaction looks ahead) + + if ( lastIndex > 0 ) { + + times[ writeIndex ] = times[ lastIndex ]; + + for ( let readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) { + + values[ writeOffset + j ] = values[ readOffset + j ]; + + } + + ++ writeIndex; + + } + + if ( writeIndex !== times.length ) { + + this.times = AnimationUtils.arraySlice( times, 0, writeIndex ); + this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride ); + + } else { + + this.times = times; + this.values = values; + + } + + return this; + + } + + clone() { + + const times = AnimationUtils.arraySlice( this.times, 0 ); + const values = AnimationUtils.arraySlice( this.values, 0 ); + + const TypedKeyframeTrack = this.constructor; + const track = new TypedKeyframeTrack( this.name, times, values ); + + // Interpolant argument to constructor is not saved, so copy the factory method directly. + track.createInterpolant = this.createInterpolant; + + return track; + + } + +} + +KeyframeTrack.prototype.TimeBufferType = Float32Array; +KeyframeTrack.prototype.ValueBufferType = Float32Array; +KeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear; + +/** + * A Track of Boolean keyframe values. + */ +class BooleanKeyframeTrack extends KeyframeTrack {} + +BooleanKeyframeTrack.prototype.ValueTypeName = 'bool'; +BooleanKeyframeTrack.prototype.ValueBufferType = Array; +BooleanKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete; +BooleanKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined; +BooleanKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined; + +/** + * A Track of keyframe values that represent color. + */ +class ColorKeyframeTrack extends KeyframeTrack {} + +ColorKeyframeTrack.prototype.ValueTypeName = 'color'; + +/** + * A Track of numeric keyframe values. + */ +class NumberKeyframeTrack extends KeyframeTrack {} + +NumberKeyframeTrack.prototype.ValueTypeName = 'number'; + +/** + * Spherical linear unit quaternion interpolant. + */ + +class QuaternionLinearInterpolant extends Interpolant { + + constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + super( parameterPositions, sampleValues, sampleSize, resultBuffer ); + + } + + interpolate_( i1, t0, t, t1 ) { + + const result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + + alpha = ( t - t0 ) / ( t1 - t0 ); + + let offset = i1 * stride; + + for ( let end = offset + stride; offset !== end; offset += 4 ) { + + Quaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha ); + + } + + return result; + + } + +} + +/** + * A Track of quaternion keyframe values. + */ +class QuaternionKeyframeTrack extends KeyframeTrack { + + InterpolantFactoryMethodLinear( result ) { + + return new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result ); + + } + +} + +QuaternionKeyframeTrack.prototype.ValueTypeName = 'quaternion'; +// ValueBufferType is inherited +QuaternionKeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear; +QuaternionKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined; + +/** + * A Track that interpolates Strings + */ +class StringKeyframeTrack extends KeyframeTrack {} + +StringKeyframeTrack.prototype.ValueTypeName = 'string'; +StringKeyframeTrack.prototype.ValueBufferType = Array; +StringKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete; +StringKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined; +StringKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined; + +/** + * A Track of vectored keyframe values. + */ +class VectorKeyframeTrack extends KeyframeTrack {} + +VectorKeyframeTrack.prototype.ValueTypeName = 'vector'; + +class AnimationClip { + + constructor( name, duration = - 1, tracks, blendMode = NormalAnimationBlendMode ) { + + this.name = name; + this.tracks = tracks; + this.duration = duration; + this.blendMode = blendMode; + + this.uuid = generateUUID(); + + // this means it should figure out its duration by scanning the tracks + if ( this.duration < 0 ) { + + this.resetDuration(); + + } + + } + + + static parse( json ) { + + const tracks = [], + jsonTracks = json.tracks, + frameTime = 1.0 / ( json.fps || 1.0 ); + + for ( let i = 0, n = jsonTracks.length; i !== n; ++ i ) { + + tracks.push( parseKeyframeTrack( jsonTracks[ i ] ).scale( frameTime ) ); + + } + + const clip = new this( json.name, json.duration, tracks, json.blendMode ); + clip.uuid = json.uuid; + + return clip; + + } + + static toJSON( clip ) { + + const tracks = [], + clipTracks = clip.tracks; + + const json = { + + 'name': clip.name, + 'duration': clip.duration, + 'tracks': tracks, + 'uuid': clip.uuid, + 'blendMode': clip.blendMode + + }; + + for ( let i = 0, n = clipTracks.length; i !== n; ++ i ) { + + tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) ); + + } + + return json; + + } + + static CreateFromMorphTargetSequence( name, morphTargetSequence, fps, noLoop ) { + + const numMorphTargets = morphTargetSequence.length; + const tracks = []; + + for ( let i = 0; i < numMorphTargets; i ++ ) { + + let times = []; + let values = []; + + times.push( + ( i + numMorphTargets - 1 ) % numMorphTargets, + i, + ( i + 1 ) % numMorphTargets ); + + values.push( 0, 1, 0 ); + + const order = AnimationUtils.getKeyframeOrder( times ); + times = AnimationUtils.sortedArray( times, 1, order ); + values = AnimationUtils.sortedArray( values, 1, order ); + + // if there is a key at the first frame, duplicate it as the + // last frame as well for perfect loop. + if ( ! noLoop && times[ 0 ] === 0 ) { + + times.push( numMorphTargets ); + values.push( values[ 0 ] ); + + } + + tracks.push( + new NumberKeyframeTrack( + '.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']', + times, values + ).scale( 1.0 / fps ) ); + + } + + return new this( name, - 1, tracks ); + + } + + static findByName( objectOrClipArray, name ) { + + let clipArray = objectOrClipArray; + + if ( ! Array.isArray( objectOrClipArray ) ) { + + const o = objectOrClipArray; + clipArray = o.geometry && o.geometry.animations || o.animations; + + } + + for ( let i = 0; i < clipArray.length; i ++ ) { + + if ( clipArray[ i ].name === name ) { + + return clipArray[ i ]; + + } + + } + + return null; + + } + + static CreateClipsFromMorphTargetSequences( morphTargets, fps, noLoop ) { + + const animationToMorphTargets = {}; + + // tested with https://regex101.com/ on trick sequences + // such flamingo_flyA_003, flamingo_run1_003, crdeath0059 + const pattern = /^([\w-]*?)([\d]+)$/; + + // sort morph target names into animation groups based + // patterns like Walk_001, Walk_002, Run_001, Run_002 + for ( let i = 0, il = morphTargets.length; i < il; i ++ ) { + + const morphTarget = morphTargets[ i ]; + const parts = morphTarget.name.match( pattern ); + + if ( parts && parts.length > 1 ) { + + const name = parts[ 1 ]; + + let animationMorphTargets = animationToMorphTargets[ name ]; + + if ( ! animationMorphTargets ) { + + animationToMorphTargets[ name ] = animationMorphTargets = []; + + } + + animationMorphTargets.push( morphTarget ); + + } + + } + + const clips = []; + + for ( const name in animationToMorphTargets ) { + + clips.push( this.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) ); + + } + + return clips; + + } + + // parse the animation.hierarchy format + static parseAnimation( animation, bones ) { + + if ( ! animation ) { + + console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' ); + return null; + + } + + const addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) { + + // only return track if there are actually keys. + if ( animationKeys.length !== 0 ) { + + const times = []; + const values = []; + + AnimationUtils.flattenJSON( animationKeys, times, values, propertyName ); + + // empty keys are filtered out, so check again + if ( times.length !== 0 ) { + + destTracks.push( new trackType( trackName, times, values ) ); + + } + + } + + }; + + const tracks = []; + + const clipName = animation.name || 'default'; + const fps = animation.fps || 30; + const blendMode = animation.blendMode; + + // automatic length determination in AnimationClip. + let duration = animation.length || - 1; + + const hierarchyTracks = animation.hierarchy || []; + + for ( let h = 0; h < hierarchyTracks.length; h ++ ) { + + const animationKeys = hierarchyTracks[ h ].keys; + + // skip empty tracks + if ( ! animationKeys || animationKeys.length === 0 ) continue; + + // process morph targets + if ( animationKeys[ 0 ].morphTargets ) { + + // figure out all morph targets used in this track + const morphTargetNames = {}; + + let k; + + for ( k = 0; k < animationKeys.length; k ++ ) { + + if ( animationKeys[ k ].morphTargets ) { + + for ( let m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) { + + morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1; + + } + + } + + } + + // create a track for each morph target with all zero + // morphTargetInfluences except for the keys in which + // the morphTarget is named. + for ( const morphTargetName in morphTargetNames ) { + + const times = []; + const values = []; + + for ( let m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) { + + const animationKey = animationKeys[ k ]; + + times.push( animationKey.time ); + values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 ); + + } + + tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) ); + + } + + duration = morphTargetNames.length * ( fps || 1.0 ); + + } else { + + // ...assume skeletal animation + + const boneName = '.bones[' + bones[ h ].name + ']'; + + addNonemptyTrack( + VectorKeyframeTrack, boneName + '.position', + animationKeys, 'pos', tracks ); + + addNonemptyTrack( + QuaternionKeyframeTrack, boneName + '.quaternion', + animationKeys, 'rot', tracks ); + + addNonemptyTrack( + VectorKeyframeTrack, boneName + '.scale', + animationKeys, 'scl', tracks ); + + } + + } + + if ( tracks.length === 0 ) { + + return null; + + } + + const clip = new this( clipName, duration, tracks, blendMode ); + + return clip; + + } + + resetDuration() { + + const tracks = this.tracks; + let duration = 0; + + for ( let i = 0, n = tracks.length; i !== n; ++ i ) { + + const track = this.tracks[ i ]; + + duration = Math.max( duration, track.times[ track.times.length - 1 ] ); + + } + + this.duration = duration; + + return this; + + } + + trim() { + + for ( let i = 0; i < this.tracks.length; i ++ ) { + + this.tracks[ i ].trim( 0, this.duration ); + + } + + return this; + + } + + validate() { + + let valid = true; + + for ( let i = 0; i < this.tracks.length; i ++ ) { + + valid = valid && this.tracks[ i ].validate(); + + } + + return valid; + + } + + optimize() { + + for ( let i = 0; i < this.tracks.length; i ++ ) { + + this.tracks[ i ].optimize(); + + } + + return this; + + } + + clone() { + + const tracks = []; + + for ( let i = 0; i < this.tracks.length; i ++ ) { + + tracks.push( this.tracks[ i ].clone() ); + + } + + return new this.constructor( this.name, this.duration, tracks, this.blendMode ); + + } + + toJSON() { + + return this.constructor.toJSON( this ); + + } + +} + +function getTrackTypeForValueTypeName( typeName ) { + + switch ( typeName.toLowerCase() ) { + + case 'scalar': + case 'double': + case 'float': + case 'number': + case 'integer': + + return NumberKeyframeTrack; + + case 'vector': + case 'vector2': + case 'vector3': + case 'vector4': + + return VectorKeyframeTrack; + + case 'color': + + return ColorKeyframeTrack; + + case 'quaternion': + + return QuaternionKeyframeTrack; + + case 'bool': + case 'boolean': + + return BooleanKeyframeTrack; + + case 'string': + + return StringKeyframeTrack; + + } + + throw new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName ); + +} + +function parseKeyframeTrack( json ) { + + if ( json.type === undefined ) { + + throw new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' ); + + } + + const trackType = getTrackTypeForValueTypeName( json.type ); + + if ( json.times === undefined ) { + + const times = [], values = []; + + AnimationUtils.flattenJSON( json.keys, times, values, 'value' ); + + json.times = times; + json.values = values; + + } + + // derived classes can define a static parse method + if ( trackType.parse !== undefined ) { + + return trackType.parse( json ); + + } else { + + // by default, we assume a constructor compatible with the base + return new trackType( json.name, json.times, json.values, json.interpolation ); + + } + +} + +const Cache = { + + enabled: false, + + files: {}, + + add: function ( key, file ) { + + if ( this.enabled === false ) return; + + // console.log( 'THREE.Cache', 'Adding key:', key ); + + this.files[ key ] = file; + + }, + + get: function ( key ) { + + if ( this.enabled === false ) return; + + // console.log( 'THREE.Cache', 'Checking key:', key ); + + return this.files[ key ]; + + }, + + remove: function ( key ) { + + delete this.files[ key ]; + + }, + + clear: function () { + + this.files = {}; + + } + +}; + +class LoadingManager { + + constructor( onLoad, onProgress, onError ) { + + const scope = this; + + let isLoading = false; + let itemsLoaded = 0; + let itemsTotal = 0; + let urlModifier = undefined; + const handlers = []; + + // Refer to #5689 for the reason why we don't set .onStart + // in the constructor + + this.onStart = undefined; + this.onLoad = onLoad; + this.onProgress = onProgress; + this.onError = onError; + + this.itemStart = function ( url ) { + + itemsTotal ++; + + if ( isLoading === false ) { + + if ( scope.onStart !== undefined ) { + + scope.onStart( url, itemsLoaded, itemsTotal ); + + } + + } + + isLoading = true; + + }; + + this.itemEnd = function ( url ) { + + itemsLoaded ++; + + if ( scope.onProgress !== undefined ) { + + scope.onProgress( url, itemsLoaded, itemsTotal ); + + } + + if ( itemsLoaded === itemsTotal ) { + + isLoading = false; + + if ( scope.onLoad !== undefined ) { + + scope.onLoad(); + + } + + } + + }; + + this.itemError = function ( url ) { + + if ( scope.onError !== undefined ) { + + scope.onError( url ); + + } + + }; + + this.resolveURL = function ( url ) { + + if ( urlModifier ) { + + return urlModifier( url ); + + } + + return url; + + }; + + this.setURLModifier = function ( transform ) { + + urlModifier = transform; + + return this; + + }; + + this.addHandler = function ( regex, loader ) { + + handlers.push( regex, loader ); + + return this; + + }; + + this.removeHandler = function ( regex ) { + + const index = handlers.indexOf( regex ); + + if ( index !== - 1 ) { + + handlers.splice( index, 2 ); + + } + + return this; + + }; + + this.getHandler = function ( file ) { + + for ( let i = 0, l = handlers.length; i < l; i += 2 ) { + + const regex = handlers[ i ]; + const loader = handlers[ i + 1 ]; + + if ( regex.global ) regex.lastIndex = 0; // see #17920 + + if ( regex.test( file ) ) { + + return loader; + + } + + } + + return null; + + }; + + } + +} + +const DefaultLoadingManager = new LoadingManager(); + +class Loader { + + constructor( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + this.crossOrigin = 'anonymous'; + this.withCredentials = false; + this.path = ''; + this.resourcePath = ''; + this.requestHeader = {}; + + } + + load( /* url, onLoad, onProgress, onError */ ) {} + + loadAsync( url, onProgress ) { + + const scope = this; + + return new Promise( function ( resolve, reject ) { + + scope.load( url, resolve, onProgress, reject ); + + } ); + + } + + parse( /* data */ ) {} + + setCrossOrigin( crossOrigin ) { + + this.crossOrigin = crossOrigin; + return this; + + } + + setWithCredentials( value ) { + + this.withCredentials = value; + return this; + + } + + setPath( path ) { + + this.path = path; + return this; + + } + + setResourcePath( resourcePath ) { + + this.resourcePath = resourcePath; + return this; + + } + + setRequestHeader( requestHeader ) { + + this.requestHeader = requestHeader; + return this; + + } + +} + +const loading = {}; + +class FileLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + if ( url === undefined ) url = ''; + + if ( this.path !== undefined ) url = this.path + url; + + url = this.manager.resolveURL( url ); + + const cached = Cache.get( url ); + + if ( cached !== undefined ) { + + this.manager.itemStart( url ); + + setTimeout( () => { + + if ( onLoad ) onLoad( cached ); + + this.manager.itemEnd( url ); + + }, 0 ); + + return cached; + + } + + // Check if request is duplicate + + if ( loading[ url ] !== undefined ) { + + loading[ url ].push( { + + onLoad: onLoad, + onProgress: onProgress, + onError: onError + + } ); + + return; + + } + + // Initialise array for duplicate requests + loading[ url ] = []; + + loading[ url ].push( { + onLoad: onLoad, + onProgress: onProgress, + onError: onError, + } ); + + // create request + const req = new Request( url, { + headers: new Headers( this.requestHeader ), + credentials: this.withCredentials ? 'include' : 'same-origin', + // An abort controller could be added within a future PR + } ); + + // start the fetch + fetch( req ) + .then( response => { + + if ( response.status === 200 || response.status === 0 ) { + + // Some browsers return HTTP Status 0 when using non-http protocol + // e.g. 'file://' or 'data://'. Handle as success. + + if ( response.status === 0 ) { + + console.warn( 'THREE.FileLoader: HTTP Status 0 received.' ); + + } + + const callbacks = loading[ url ]; + const reader = response.body.getReader(); + const contentLength = response.headers.get( 'Content-Length' ); + const total = contentLength ? parseInt( contentLength ) : 0; + const lengthComputable = total !== 0; + let loaded = 0; + + // periodically read data into the new stream tracking while download progress + return new ReadableStream( { + start( controller ) { + + readData(); + + function readData() { + + reader.read().then( ( { done, value } ) => { + + if ( done ) { + + controller.close(); + + } else { + + loaded += value.byteLength; + + const event = new ProgressEvent( 'progress', { lengthComputable, loaded, total } ); + for ( let i = 0, il = callbacks.length; i < il; i ++ ) { + + const callback = callbacks[ i ]; + if ( callback.onProgress ) callback.onProgress( event ); + + } + + controller.enqueue( value ); + readData(); + + } + + } ); + + } + + } + + } ); + + } else { + + throw Error( `fetch for "${response.url}" responded with ${response.status}: ${response.statusText}` ); + + } + + } ) + .then( stream => { + + const response = new Response( stream ); + + switch ( this.responseType ) { + + case 'arraybuffer': + + return response.arrayBuffer(); + + case 'blob': + + return response.blob(); + + case 'document': + + return response.text() + .then( text => { + + const parser = new DOMParser(); + return parser.parseFromString( text, this.mimeType ); + + } ); + + case 'json': + + return response.json(); + + default: + + return response.text(); + + } + + } ) + .then( data => { + + // Add to cache only on HTTP success, so that we do not cache + // error response bodies as proper responses to requests. + Cache.add( url, data ); + + const callbacks = loading[ url ]; + delete loading[ url ]; + + for ( let i = 0, il = callbacks.length; i < il; i ++ ) { + + const callback = callbacks[ i ]; + if ( callback.onLoad ) callback.onLoad( data ); + + } + + this.manager.itemEnd( url ); + + } ) + .catch( err => { + + // Abort errors and other errors are handled the same + + const callbacks = loading[ url ]; + delete loading[ url ]; + + for ( let i = 0, il = callbacks.length; i < il; i ++ ) { + + const callback = callbacks[ i ]; + if ( callback.onError ) callback.onError( err ); + + } + + this.manager.itemError( url ); + this.manager.itemEnd( url ); + + } ); + + this.manager.itemStart( url ); + + } + + setResponseType( value ) { + + this.responseType = value; + return this; + + } + + setMimeType( value ) { + + this.mimeType = value; + return this; + + } + +} + +class AnimationLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( this.manager ); + loader.setPath( this.path ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( this.withCredentials ); + loader.load( url, function ( text ) { + + try { + + onLoad( scope.parse( JSON.parse( text ) ) ); + + } catch ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + + } + + }, onProgress, onError ); + + } + + parse( json ) { + + const animations = []; + + for ( let i = 0; i < json.length; i ++ ) { + + const clip = AnimationClip.parse( json[ i ] ); + + animations.push( clip ); + + } + + return animations; + + } + +} + +/** + * Abstract Base class to block based textures loader (dds, pvr, ...) + * + * Sub classes have to implement the parse() method which will be used in load(). + */ + +class CompressedTextureLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + const images = []; + + const texture = new CompressedTexture(); + + const loader = new FileLoader( this.manager ); + loader.setPath( this.path ); + loader.setResponseType( 'arraybuffer' ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( scope.withCredentials ); + + let loaded = 0; + + function loadTexture( i ) { + + loader.load( url[ i ], function ( buffer ) { + + const texDatas = scope.parse( buffer, true ); + + images[ i ] = { + width: texDatas.width, + height: texDatas.height, + format: texDatas.format, + mipmaps: texDatas.mipmaps + }; + + loaded += 1; + + if ( loaded === 6 ) { + + if ( texDatas.mipmapCount === 1 ) texture.minFilter = LinearFilter; + + texture.image = images; + texture.format = texDatas.format; + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture ); + + } + + }, onProgress, onError ); + + } + + if ( Array.isArray( url ) ) { + + for ( let i = 0, il = url.length; i < il; ++ i ) { + + loadTexture( i ); + + } + + } else { + + // compressed cubemap texture stored in a single DDS file + + loader.load( url, function ( buffer ) { + + const texDatas = scope.parse( buffer, true ); + + if ( texDatas.isCubemap ) { + + const faces = texDatas.mipmaps.length / texDatas.mipmapCount; + + for ( let f = 0; f < faces; f ++ ) { + + images[ f ] = { mipmaps: [] }; + + for ( let i = 0; i < texDatas.mipmapCount; i ++ ) { + + images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] ); + images[ f ].format = texDatas.format; + images[ f ].width = texDatas.width; + images[ f ].height = texDatas.height; + + } + + } + + texture.image = images; + + } else { + + texture.image.width = texDatas.width; + texture.image.height = texDatas.height; + texture.mipmaps = texDatas.mipmaps; + + } + + if ( texDatas.mipmapCount === 1 ) { + + texture.minFilter = LinearFilter; + + } + + texture.format = texDatas.format; + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture ); + + }, onProgress, onError ); + + } + + return texture; + + } + +} + +class ImageLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + if ( this.path !== undefined ) url = this.path + url; + + url = this.manager.resolveURL( url ); + + const scope = this; + + const cached = Cache.get( url ); + + if ( cached !== undefined ) { + + scope.manager.itemStart( url ); + + setTimeout( function () { + + if ( onLoad ) onLoad( cached ); + + scope.manager.itemEnd( url ); + + }, 0 ); + + return cached; + + } + + const image = createElementNS( 'img' ); + + function onImageLoad() { + + removeEventListeners(); + + Cache.add( url, this ); + + if ( onLoad ) onLoad( this ); + + scope.manager.itemEnd( url ); + + } + + function onImageError( event ) { + + removeEventListeners(); + + if ( onError ) onError( event ); + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + } + + function removeEventListeners() { + + image.removeEventListener( 'load', onImageLoad, false ); + image.removeEventListener( 'error', onImageError, false ); + + } + + image.addEventListener( 'load', onImageLoad, false ); + image.addEventListener( 'error', onImageError, false ); + + if ( url.substr( 0, 5 ) !== 'data:' ) { + + if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin; + + } + + scope.manager.itemStart( url ); + + image.src = url; + + return image; + + } + +} + +class CubeTextureLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( urls, onLoad, onProgress, onError ) { + + const texture = new CubeTexture(); + + const loader = new ImageLoader( this.manager ); + loader.setCrossOrigin( this.crossOrigin ); + loader.setPath( this.path ); + + let loaded = 0; + + function loadTexture( i ) { + + loader.load( urls[ i ], function ( image ) { + + texture.images[ i ] = image; + + loaded ++; + + if ( loaded === 6 ) { + + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture ); + + } + + }, undefined, onError ); + + } + + for ( let i = 0; i < urls.length; ++ i ) { + + loadTexture( i ); + + } + + return texture; + + } + +} + +/** + * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...) + * + * Sub classes have to implement the parse() method which will be used in load(). + */ + +class DataTextureLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + const texture = new DataTexture(); + + const loader = new FileLoader( this.manager ); + loader.setResponseType( 'arraybuffer' ); + loader.setRequestHeader( this.requestHeader ); + loader.setPath( this.path ); + loader.setWithCredentials( scope.withCredentials ); + loader.load( url, function ( buffer ) { + + const texData = scope.parse( buffer ); + + if ( ! texData ) return; + + if ( texData.image !== undefined ) { + + texture.image = texData.image; + + } else if ( texData.data !== undefined ) { + + texture.image.width = texData.width; + texture.image.height = texData.height; + texture.image.data = texData.data; + + } + + texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping; + texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping; + + texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter; + texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearFilter; + + texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1; + + if ( texData.encoding !== undefined ) { + + texture.encoding = texData.encoding; + + } + + if ( texData.flipY !== undefined ) { + + texture.flipY = texData.flipY; + + } + + if ( texData.format !== undefined ) { + + texture.format = texData.format; + + } + + if ( texData.type !== undefined ) { + + texture.type = texData.type; + + } + + if ( texData.mipmaps !== undefined ) { + + texture.mipmaps = texData.mipmaps; + texture.minFilter = LinearMipmapLinearFilter; // presumably... + + } + + if ( texData.mipmapCount === 1 ) { + + texture.minFilter = LinearFilter; + + } + + if ( texData.generateMipmaps !== undefined ) { + + texture.generateMipmaps = texData.generateMipmaps; + + } + + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture, texData ); + + }, onProgress, onError ); + + + return texture; + + } + +} + +class TextureLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + const texture = new Texture(); + + const loader = new ImageLoader( this.manager ); + loader.setCrossOrigin( this.crossOrigin ); + loader.setPath( this.path ); + + loader.load( url, function ( image ) { + + texture.image = image; + texture.needsUpdate = true; + + if ( onLoad !== undefined ) { + + onLoad( texture ); + + } + + }, onProgress, onError ); + + return texture; + + } + +} + +class Light extends Object3D { + + constructor( color, intensity = 1 ) { + + super(); + + this.type = 'Light'; + + this.color = new Color( color ); + this.intensity = intensity; + + } + + dispose() { + + // Empty here in base class; some subclasses override. + + } + + copy( source ) { + + super.copy( source ); + + this.color.copy( source.color ); + this.intensity = source.intensity; + + return this; + + } + + toJSON( meta ) { + + const data = super.toJSON( meta ); + + data.object.color = this.color.getHex(); + data.object.intensity = this.intensity; + + if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex(); + + if ( this.distance !== undefined ) data.object.distance = this.distance; + if ( this.angle !== undefined ) data.object.angle = this.angle; + if ( this.decay !== undefined ) data.object.decay = this.decay; + if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra; + + if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON(); + + return data; + + } + +} + +Light.prototype.isLight = true; + +class HemisphereLight extends Light { + + constructor( skyColor, groundColor, intensity ) { + + super( skyColor, intensity ); + + this.type = 'HemisphereLight'; + + this.position.copy( Object3D.DefaultUp ); + this.updateMatrix(); + + this.groundColor = new Color( groundColor ); + + } + + copy( source ) { + + Light.prototype.copy.call( this, source ); + + this.groundColor.copy( source.groundColor ); + + return this; + + } + +} + +HemisphereLight.prototype.isHemisphereLight = true; + +const _projScreenMatrix$1 = /*@__PURE__*/ new Matrix4(); +const _lightPositionWorld$1 = /*@__PURE__*/ new Vector3(); +const _lookTarget$1 = /*@__PURE__*/ new Vector3(); + +class LightShadow { + + constructor( camera ) { + + this.camera = camera; + + this.bias = 0; + this.normalBias = 0; + this.radius = 1; + this.blurSamples = 8; + + this.mapSize = new Vector2( 512, 512 ); + + this.map = null; + this.mapPass = null; + this.matrix = new Matrix4(); + + this.autoUpdate = true; + this.needsUpdate = false; + + this._frustum = new Frustum(); + this._frameExtents = new Vector2( 1, 1 ); + + this._viewportCount = 1; + + this._viewports = [ + + new Vector4( 0, 0, 1, 1 ) + + ]; + + } + + getViewportCount() { + + return this._viewportCount; + + } + + getFrustum() { + + return this._frustum; + + } + + updateMatrices( light ) { + + const shadowCamera = this.camera; + const shadowMatrix = this.matrix; + + _lightPositionWorld$1.setFromMatrixPosition( light.matrixWorld ); + shadowCamera.position.copy( _lightPositionWorld$1 ); + + _lookTarget$1.setFromMatrixPosition( light.target.matrixWorld ); + shadowCamera.lookAt( _lookTarget$1 ); + shadowCamera.updateMatrixWorld(); + + _projScreenMatrix$1.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse ); + this._frustum.setFromProjectionMatrix( _projScreenMatrix$1 ); + + shadowMatrix.set( + 0.5, 0.0, 0.0, 0.5, + 0.0, 0.5, 0.0, 0.5, + 0.0, 0.0, 0.5, 0.5, + 0.0, 0.0, 0.0, 1.0 + ); + + shadowMatrix.multiply( shadowCamera.projectionMatrix ); + shadowMatrix.multiply( shadowCamera.matrixWorldInverse ); + + } + + getViewport( viewportIndex ) { + + return this._viewports[ viewportIndex ]; + + } + + getFrameExtents() { + + return this._frameExtents; + + } + + dispose() { + + if ( this.map ) { + + this.map.dispose(); + + } + + if ( this.mapPass ) { + + this.mapPass.dispose(); + + } + + } + + copy( source ) { + + this.camera = source.camera.clone(); + + this.bias = source.bias; + this.radius = source.radius; + + this.mapSize.copy( source.mapSize ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + toJSON() { + + const object = {}; + + if ( this.bias !== 0 ) object.bias = this.bias; + if ( this.normalBias !== 0 ) object.normalBias = this.normalBias; + if ( this.radius !== 1 ) object.radius = this.radius; + if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray(); + + object.camera = this.camera.toJSON( false ).object; + delete object.camera.matrix; + + return object; + + } + +} + +class SpotLightShadow extends LightShadow { + + constructor() { + + super( new PerspectiveCamera( 50, 1, 0.5, 500 ) ); + + this.focus = 1; + + } + + updateMatrices( light ) { + + const camera = this.camera; + + const fov = RAD2DEG * 2 * light.angle * this.focus; + const aspect = this.mapSize.width / this.mapSize.height; + const far = light.distance || camera.far; + + if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) { + + camera.fov = fov; + camera.aspect = aspect; + camera.far = far; + camera.updateProjectionMatrix(); + + } + + super.updateMatrices( light ); + + } + + copy( source ) { + + super.copy( source ); + + this.focus = source.focus; + + return this; + + } + +} + +SpotLightShadow.prototype.isSpotLightShadow = true; + +class SpotLight extends Light { + + constructor( color, intensity, distance = 0, angle = Math.PI / 3, penumbra = 0, decay = 1 ) { + + super( color, intensity ); + + this.type = 'SpotLight'; + + this.position.copy( Object3D.DefaultUp ); + this.updateMatrix(); + + this.target = new Object3D(); + + this.distance = distance; + this.angle = angle; + this.penumbra = penumbra; + this.decay = decay; // for physically correct lights, should be 2. + + this.shadow = new SpotLightShadow(); + + } + + get power() { + + // compute the light's luminous power (in lumens) from its intensity (in candela) + // by convention for a spotlight, luminous power (lm) = π * luminous intensity (cd) + return this.intensity * Math.PI; + + } + + set power( power ) { + + // set the light's intensity (in candela) from the desired luminous power (in lumens) + this.intensity = power / Math.PI; + + } + + dispose() { + + this.shadow.dispose(); + + } + + copy( source ) { + + super.copy( source ); + + this.distance = source.distance; + this.angle = source.angle; + this.penumbra = source.penumbra; + this.decay = source.decay; + + this.target = source.target.clone(); + + this.shadow = source.shadow.clone(); + + return this; + + } + +} + +SpotLight.prototype.isSpotLight = true; + +const _projScreenMatrix = /*@__PURE__*/ new Matrix4(); +const _lightPositionWorld = /*@__PURE__*/ new Vector3(); +const _lookTarget = /*@__PURE__*/ new Vector3(); + +class PointLightShadow extends LightShadow { + + constructor() { + + super( new PerspectiveCamera( 90, 1, 0.5, 500 ) ); + + this._frameExtents = new Vector2( 4, 2 ); + + this._viewportCount = 6; + + this._viewports = [ + // These viewports map a cube-map onto a 2D texture with the + // following orientation: + // + // xzXZ + // y Y + // + // X - Positive x direction + // x - Negative x direction + // Y - Positive y direction + // y - Negative y direction + // Z - Positive z direction + // z - Negative z direction + + // positive X + new Vector4( 2, 1, 1, 1 ), + // negative X + new Vector4( 0, 1, 1, 1 ), + // positive Z + new Vector4( 3, 1, 1, 1 ), + // negative Z + new Vector4( 1, 1, 1, 1 ), + // positive Y + new Vector4( 3, 0, 1, 1 ), + // negative Y + new Vector4( 1, 0, 1, 1 ) + ]; + + this._cubeDirections = [ + new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ), + new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 ) + ]; + + this._cubeUps = [ + new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), + new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ), new Vector3( 0, 0, - 1 ) + ]; + + } + + updateMatrices( light, viewportIndex = 0 ) { + + const camera = this.camera; + const shadowMatrix = this.matrix; + + const far = light.distance || camera.far; + + if ( far !== camera.far ) { + + camera.far = far; + camera.updateProjectionMatrix(); + + } + + _lightPositionWorld.setFromMatrixPosition( light.matrixWorld ); + camera.position.copy( _lightPositionWorld ); + + _lookTarget.copy( camera.position ); + _lookTarget.add( this._cubeDirections[ viewportIndex ] ); + camera.up.copy( this._cubeUps[ viewportIndex ] ); + camera.lookAt( _lookTarget ); + camera.updateMatrixWorld(); + + shadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z ); + + _projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse ); + this._frustum.setFromProjectionMatrix( _projScreenMatrix ); + + } + +} + +PointLightShadow.prototype.isPointLightShadow = true; + +class PointLight extends Light { + + constructor( color, intensity, distance = 0, decay = 1 ) { + + super( color, intensity ); + + this.type = 'PointLight'; + + this.distance = distance; + this.decay = decay; // for physically correct lights, should be 2. + + this.shadow = new PointLightShadow(); + + } + + get power() { + + // compute the light's luminous power (in lumens) from its intensity (in candela) + // for an isotropic light source, luminous power (lm) = 4 π luminous intensity (cd) + return this.intensity * 4 * Math.PI; + + } + + set power( power ) { + + // set the light's intensity (in candela) from the desired luminous power (in lumens) + this.intensity = power / ( 4 * Math.PI ); + + } + + dispose() { + + this.shadow.dispose(); + + } + + copy( source ) { + + super.copy( source ); + + this.distance = source.distance; + this.decay = source.decay; + + this.shadow = source.shadow.clone(); + + return this; + + } + +} + +PointLight.prototype.isPointLight = true; + +class DirectionalLightShadow extends LightShadow { + + constructor() { + + super( new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) ); + + } + +} + +DirectionalLightShadow.prototype.isDirectionalLightShadow = true; + +class DirectionalLight extends Light { + + constructor( color, intensity ) { + + super( color, intensity ); + + this.type = 'DirectionalLight'; + + this.position.copy( Object3D.DefaultUp ); + this.updateMatrix(); + + this.target = new Object3D(); + + this.shadow = new DirectionalLightShadow(); + + } + + dispose() { + + this.shadow.dispose(); + + } + + copy( source ) { + + super.copy( source ); + + this.target = source.target.clone(); + this.shadow = source.shadow.clone(); + + return this; + + } + +} + +DirectionalLight.prototype.isDirectionalLight = true; + +class AmbientLight extends Light { + + constructor( color, intensity ) { + + super( color, intensity ); + + this.type = 'AmbientLight'; + + } + +} + +AmbientLight.prototype.isAmbientLight = true; + +class RectAreaLight extends Light { + + constructor( color, intensity, width = 10, height = 10 ) { + + super( color, intensity ); + + this.type = 'RectAreaLight'; + + this.width = width; + this.height = height; + + } + + get power() { + + // compute the light's luminous power (in lumens) from its intensity (in nits) + return this.intensity * this.width * this.height * Math.PI; + + } + + set power( power ) { + + // set the light's intensity (in nits) from the desired luminous power (in lumens) + this.intensity = power / ( this.width * this.height * Math.PI ); + + } + + copy( source ) { + + super.copy( source ); + + this.width = source.width; + this.height = source.height; + + return this; + + } + + toJSON( meta ) { + + const data = super.toJSON( meta ); + + data.object.width = this.width; + data.object.height = this.height; + + return data; + + } + +} + +RectAreaLight.prototype.isRectAreaLight = true; + +/** + * Primary reference: + * https://graphics.stanford.edu/papers/envmap/envmap.pdf + * + * Secondary reference: + * https://www.ppsloan.org/publications/StupidSH36.pdf + */ + +// 3-band SH defined by 9 coefficients + +class SphericalHarmonics3 { + + constructor() { + + this.coefficients = []; + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients.push( new Vector3() ); + + } + + } + + set( coefficients ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].copy( coefficients[ i ] ); + + } + + return this; + + } + + zero() { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].set( 0, 0, 0 ); + + } + + return this; + + } + + // get the radiance in the direction of the normal + // target is a Vector3 + getAt( normal, target ) { + + // normal is assumed to be unit length + + const x = normal.x, y = normal.y, z = normal.z; + + const coeff = this.coefficients; + + // band 0 + target.copy( coeff[ 0 ] ).multiplyScalar( 0.282095 ); + + // band 1 + target.addScaledVector( coeff[ 1 ], 0.488603 * y ); + target.addScaledVector( coeff[ 2 ], 0.488603 * z ); + target.addScaledVector( coeff[ 3 ], 0.488603 * x ); + + // band 2 + target.addScaledVector( coeff[ 4 ], 1.092548 * ( x * y ) ); + target.addScaledVector( coeff[ 5 ], 1.092548 * ( y * z ) ); + target.addScaledVector( coeff[ 6 ], 0.315392 * ( 3.0 * z * z - 1.0 ) ); + target.addScaledVector( coeff[ 7 ], 1.092548 * ( x * z ) ); + target.addScaledVector( coeff[ 8 ], 0.546274 * ( x * x - y * y ) ); + + return target; + + } + + // get the irradiance (radiance convolved with cosine lobe) in the direction of the normal + // target is a Vector3 + // https://graphics.stanford.edu/papers/envmap/envmap.pdf + getIrradianceAt( normal, target ) { + + // normal is assumed to be unit length + + const x = normal.x, y = normal.y, z = normal.z; + + const coeff = this.coefficients; + + // band 0 + target.copy( coeff[ 0 ] ).multiplyScalar( 0.886227 ); // π * 0.282095 + + // band 1 + target.addScaledVector( coeff[ 1 ], 2.0 * 0.511664 * y ); // ( 2 * π / 3 ) * 0.488603 + target.addScaledVector( coeff[ 2 ], 2.0 * 0.511664 * z ); + target.addScaledVector( coeff[ 3 ], 2.0 * 0.511664 * x ); + + // band 2 + target.addScaledVector( coeff[ 4 ], 2.0 * 0.429043 * x * y ); // ( π / 4 ) * 1.092548 + target.addScaledVector( coeff[ 5 ], 2.0 * 0.429043 * y * z ); + target.addScaledVector( coeff[ 6 ], 0.743125 * z * z - 0.247708 ); // ( π / 4 ) * 0.315392 * 3 + target.addScaledVector( coeff[ 7 ], 2.0 * 0.429043 * x * z ); + target.addScaledVector( coeff[ 8 ], 0.429043 * ( x * x - y * y ) ); // ( π / 4 ) * 0.546274 + + return target; + + } + + add( sh ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].add( sh.coefficients[ i ] ); + + } + + return this; + + } + + addScaledSH( sh, s ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].addScaledVector( sh.coefficients[ i ], s ); + + } + + return this; + + } + + scale( s ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].multiplyScalar( s ); + + } + + return this; + + } + + lerp( sh, alpha ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].lerp( sh.coefficients[ i ], alpha ); + + } + + return this; + + } + + equals( sh ) { + + for ( let i = 0; i < 9; i ++ ) { + + if ( ! this.coefficients[ i ].equals( sh.coefficients[ i ] ) ) { + + return false; + + } + + } + + return true; + + } + + copy( sh ) { + + return this.set( sh.coefficients ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + fromArray( array, offset = 0 ) { + + const coefficients = this.coefficients; + + for ( let i = 0; i < 9; i ++ ) { + + coefficients[ i ].fromArray( array, offset + ( i * 3 ) ); + + } + + return this; + + } + + toArray( array = [], offset = 0 ) { + + const coefficients = this.coefficients; + + for ( let i = 0; i < 9; i ++ ) { + + coefficients[ i ].toArray( array, offset + ( i * 3 ) ); + + } + + return array; + + } + + // evaluate the basis functions + // shBasis is an Array[ 9 ] + static getBasisAt( normal, shBasis ) { + + // normal is assumed to be unit length + + const x = normal.x, y = normal.y, z = normal.z; + + // band 0 + shBasis[ 0 ] = 0.282095; + + // band 1 + shBasis[ 1 ] = 0.488603 * y; + shBasis[ 2 ] = 0.488603 * z; + shBasis[ 3 ] = 0.488603 * x; + + // band 2 + shBasis[ 4 ] = 1.092548 * x * y; + shBasis[ 5 ] = 1.092548 * y * z; + shBasis[ 6 ] = 0.315392 * ( 3 * z * z - 1 ); + shBasis[ 7 ] = 1.092548 * x * z; + shBasis[ 8 ] = 0.546274 * ( x * x - y * y ); + + } + +} + +SphericalHarmonics3.prototype.isSphericalHarmonics3 = true; + +class LightProbe extends Light { + + constructor( sh = new SphericalHarmonics3(), intensity = 1 ) { + + super( undefined, intensity ); + + this.sh = sh; + + } + + copy( source ) { + + super.copy( source ); + + this.sh.copy( source.sh ); + + return this; + + } + + fromJSON( json ) { + + this.intensity = json.intensity; // TODO: Move this bit to Light.fromJSON(); + this.sh.fromArray( json.sh ); + + return this; + + } + + toJSON( meta ) { + + const data = super.toJSON( meta ); + + data.object.sh = this.sh.toArray(); + + return data; + + } + +} + +LightProbe.prototype.isLightProbe = true; + +class MaterialLoader extends Loader { + + constructor( manager ) { + + super( manager ); + this.textures = {}; + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( scope.manager ); + loader.setPath( scope.path ); + loader.setRequestHeader( scope.requestHeader ); + loader.setWithCredentials( scope.withCredentials ); + loader.load( url, function ( text ) { + + try { + + onLoad( scope.parse( JSON.parse( text ) ) ); + + } catch ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + + } + + }, onProgress, onError ); + + } + + parse( json ) { + + const textures = this.textures; + + function getTexture( name ) { + + if ( textures[ name ] === undefined ) { + + console.warn( 'THREE.MaterialLoader: Undefined texture', name ); + + } + + return textures[ name ]; + + } + + const material = new Materials[ json.type ](); + + if ( json.uuid !== undefined ) material.uuid = json.uuid; + if ( json.name !== undefined ) material.name = json.name; + if ( json.color !== undefined && material.color !== undefined ) material.color.setHex( json.color ); + if ( json.roughness !== undefined ) material.roughness = json.roughness; + if ( json.metalness !== undefined ) material.metalness = json.metalness; + if ( json.sheen !== undefined ) material.sheen = json.sheen; + if ( json.sheenColor !== undefined ) material.sheenColor = new Color().setHex( json.sheenColor ); + if ( json.sheenRoughness !== undefined ) material.sheenRoughness = json.sheenRoughness; + if ( json.emissive !== undefined && material.emissive !== undefined ) material.emissive.setHex( json.emissive ); + if ( json.specular !== undefined && material.specular !== undefined ) material.specular.setHex( json.specular ); + if ( json.specularIntensity !== undefined ) material.specularIntensity = json.specularIntensity; + if ( json.specularColor !== undefined && material.specularColor !== undefined ) material.specularColor.setHex( json.specularColor ); + if ( json.shininess !== undefined ) material.shininess = json.shininess; + if ( json.clearcoat !== undefined ) material.clearcoat = json.clearcoat; + if ( json.clearcoatRoughness !== undefined ) material.clearcoatRoughness = json.clearcoatRoughness; + if ( json.transmission !== undefined ) material.transmission = json.transmission; + if ( json.thickness !== undefined ) material.thickness = json.thickness; + if ( json.attenuationDistance !== undefined ) material.attenuationDistance = json.attenuationDistance; + if ( json.attenuationColor !== undefined && material.attenuationColor !== undefined ) material.attenuationColor.setHex( json.attenuationColor ); + if ( json.fog !== undefined ) material.fog = json.fog; + if ( json.flatShading !== undefined ) material.flatShading = json.flatShading; + if ( json.blending !== undefined ) material.blending = json.blending; + if ( json.combine !== undefined ) material.combine = json.combine; + if ( json.side !== undefined ) material.side = json.side; + if ( json.shadowSide !== undefined ) material.shadowSide = json.shadowSide; + if ( json.opacity !== undefined ) material.opacity = json.opacity; + if ( json.format !== undefined ) material.format = json.format; + if ( json.transparent !== undefined ) material.transparent = json.transparent; + if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest; + if ( json.depthTest !== undefined ) material.depthTest = json.depthTest; + if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite; + if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite; + + if ( json.stencilWrite !== undefined ) material.stencilWrite = json.stencilWrite; + if ( json.stencilWriteMask !== undefined ) material.stencilWriteMask = json.stencilWriteMask; + if ( json.stencilFunc !== undefined ) material.stencilFunc = json.stencilFunc; + if ( json.stencilRef !== undefined ) material.stencilRef = json.stencilRef; + if ( json.stencilFuncMask !== undefined ) material.stencilFuncMask = json.stencilFuncMask; + if ( json.stencilFail !== undefined ) material.stencilFail = json.stencilFail; + if ( json.stencilZFail !== undefined ) material.stencilZFail = json.stencilZFail; + if ( json.stencilZPass !== undefined ) material.stencilZPass = json.stencilZPass; + + if ( json.wireframe !== undefined ) material.wireframe = json.wireframe; + if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth; + if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap; + if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin; + + if ( json.rotation !== undefined ) material.rotation = json.rotation; + + if ( json.linewidth !== 1 ) material.linewidth = json.linewidth; + if ( json.dashSize !== undefined ) material.dashSize = json.dashSize; + if ( json.gapSize !== undefined ) material.gapSize = json.gapSize; + if ( json.scale !== undefined ) material.scale = json.scale; + + if ( json.polygonOffset !== undefined ) material.polygonOffset = json.polygonOffset; + if ( json.polygonOffsetFactor !== undefined ) material.polygonOffsetFactor = json.polygonOffsetFactor; + if ( json.polygonOffsetUnits !== undefined ) material.polygonOffsetUnits = json.polygonOffsetUnits; + + if ( json.dithering !== undefined ) material.dithering = json.dithering; + + if ( json.alphaToCoverage !== undefined ) material.alphaToCoverage = json.alphaToCoverage; + if ( json.premultipliedAlpha !== undefined ) material.premultipliedAlpha = json.premultipliedAlpha; + + if ( json.visible !== undefined ) material.visible = json.visible; + + if ( json.toneMapped !== undefined ) material.toneMapped = json.toneMapped; + + if ( json.userData !== undefined ) material.userData = json.userData; + + if ( json.vertexColors !== undefined ) { + + if ( typeof json.vertexColors === 'number' ) { + + material.vertexColors = ( json.vertexColors > 0 ) ? true : false; + + } else { + + material.vertexColors = json.vertexColors; + + } + + } + + // Shader Material + + if ( json.uniforms !== undefined ) { + + for ( const name in json.uniforms ) { + + const uniform = json.uniforms[ name ]; + + material.uniforms[ name ] = {}; + + switch ( uniform.type ) { + + case 't': + material.uniforms[ name ].value = getTexture( uniform.value ); + break; + + case 'c': + material.uniforms[ name ].value = new Color().setHex( uniform.value ); + break; + + case 'v2': + material.uniforms[ name ].value = new Vector2().fromArray( uniform.value ); + break; + + case 'v3': + material.uniforms[ name ].value = new Vector3().fromArray( uniform.value ); + break; + + case 'v4': + material.uniforms[ name ].value = new Vector4().fromArray( uniform.value ); + break; + + case 'm3': + material.uniforms[ name ].value = new Matrix3().fromArray( uniform.value ); + break; + + case 'm4': + material.uniforms[ name ].value = new Matrix4().fromArray( uniform.value ); + break; + + default: + material.uniforms[ name ].value = uniform.value; + + } + + } + + } + + if ( json.defines !== undefined ) material.defines = json.defines; + if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader; + if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader; + + if ( json.extensions !== undefined ) { + + for ( const key in json.extensions ) { + + material.extensions[ key ] = json.extensions[ key ]; + + } + + } + + // Deprecated + + if ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading + + // for PointsMaterial + + if ( json.size !== undefined ) material.size = json.size; + if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation; + + // maps + + if ( json.map !== undefined ) material.map = getTexture( json.map ); + if ( json.matcap !== undefined ) material.matcap = getTexture( json.matcap ); + + if ( json.alphaMap !== undefined ) material.alphaMap = getTexture( json.alphaMap ); + + if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap ); + if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale; + + if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap ); + if ( json.normalMapType !== undefined ) material.normalMapType = json.normalMapType; + if ( json.normalScale !== undefined ) { + + let normalScale = json.normalScale; + + if ( Array.isArray( normalScale ) === false ) { + + // Blender exporter used to export a scalar. See #7459 + + normalScale = [ normalScale, normalScale ]; + + } + + material.normalScale = new Vector2().fromArray( normalScale ); + + } + + if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap ); + if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale; + if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias; + + if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap ); + if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap ); + + if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap ); + if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity; + + if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap ); + if ( json.specularIntensityMap !== undefined ) material.specularIntensityMap = getTexture( json.specularIntensityMap ); + if ( json.specularColorMap !== undefined ) material.specularColorMap = getTexture( json.specularColorMap ); + + if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap ); + if ( json.envMapIntensity !== undefined ) material.envMapIntensity = json.envMapIntensity; + + if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity; + if ( json.refractionRatio !== undefined ) material.refractionRatio = json.refractionRatio; + + if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap ); + if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity; + + if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap ); + if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity; + + if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap ); + + if ( json.clearcoatMap !== undefined ) material.clearcoatMap = getTexture( json.clearcoatMap ); + if ( json.clearcoatRoughnessMap !== undefined ) material.clearcoatRoughnessMap = getTexture( json.clearcoatRoughnessMap ); + if ( json.clearcoatNormalMap !== undefined ) material.clearcoatNormalMap = getTexture( json.clearcoatNormalMap ); + if ( json.clearcoatNormalScale !== undefined ) material.clearcoatNormalScale = new Vector2().fromArray( json.clearcoatNormalScale ); + + if ( json.transmissionMap !== undefined ) material.transmissionMap = getTexture( json.transmissionMap ); + if ( json.thicknessMap !== undefined ) material.thicknessMap = getTexture( json.thicknessMap ); + + if ( json.sheenColorMap !== undefined ) material.sheenColorMap = getTexture( json.sheenColorMap ); + if ( json.sheenRoughnessMap !== undefined ) material.sheenRoughnessMap = getTexture( json.sheenRoughnessMap ); + + return material; + + } + + setTextures( value ) { + + this.textures = value; + return this; + + } + +} + +class LoaderUtils { + + static decodeText( array ) { + + if ( typeof TextDecoder !== 'undefined' ) { + + return new TextDecoder().decode( array ); + + } + + // Avoid the String.fromCharCode.apply(null, array) shortcut, which + // throws a "maximum call stack size exceeded" error for large arrays. + + let s = ''; + + for ( let i = 0, il = array.length; i < il; i ++ ) { + + // Implicitly assumes little-endian. + s += String.fromCharCode( array[ i ] ); + + } + + try { + + // merges multi-byte utf-8 characters. + + return decodeURIComponent( escape( s ) ); + + } catch ( e ) { // see #16358 + + return s; + + } + + } + + static extractUrlBase( url ) { + + const index = url.lastIndexOf( '/' ); + + if ( index === - 1 ) return './'; + + return url.substr( 0, index + 1 ); + + } + + static resolveURL( url, path ) { + + // Invalid URL + if ( typeof url !== 'string' || url === '' ) return ''; + + // Host Relative URL + if ( /^https?:\/\//i.test( path ) && /^\//.test( url ) ) { + + path = path.replace( /(^https?:\/\/[^\/]+).*/i, '$1' ); + + } + + // Absolute URL http://,https://,// + if ( /^(https?:)?\/\//i.test( url ) ) return url; + + // Data URI + if ( /^data:.*,.*$/i.test( url ) ) return url; + + // Blob URL + if ( /^blob:.*$/i.test( url ) ) return url; + + // Relative URL + return path + url; + + } + +} + +class InstancedBufferGeometry extends BufferGeometry { + + constructor() { + + super(); + + this.type = 'InstancedBufferGeometry'; + this.instanceCount = Infinity; + + } + + copy( source ) { + + super.copy( source ); + + this.instanceCount = source.instanceCount; + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + toJSON() { + + const data = super.toJSON( this ); + + data.instanceCount = this.instanceCount; + + data.isInstancedBufferGeometry = true; + + return data; + + } + +} + +InstancedBufferGeometry.prototype.isInstancedBufferGeometry = true; + +class BufferGeometryLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( scope.manager ); + loader.setPath( scope.path ); + loader.setRequestHeader( scope.requestHeader ); + loader.setWithCredentials( scope.withCredentials ); + loader.load( url, function ( text ) { + + try { + + onLoad( scope.parse( JSON.parse( text ) ) ); + + } catch ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + + } + + }, onProgress, onError ); + + } + + parse( json ) { + + const interleavedBufferMap = {}; + const arrayBufferMap = {}; + + function getInterleavedBuffer( json, uuid ) { + + if ( interleavedBufferMap[ uuid ] !== undefined ) return interleavedBufferMap[ uuid ]; + + const interleavedBuffers = json.interleavedBuffers; + const interleavedBuffer = interleavedBuffers[ uuid ]; + + const buffer = getArrayBuffer( json, interleavedBuffer.buffer ); + + const array = getTypedArray( interleavedBuffer.type, buffer ); + const ib = new InterleavedBuffer( array, interleavedBuffer.stride ); + ib.uuid = interleavedBuffer.uuid; + + interleavedBufferMap[ uuid ] = ib; + + return ib; + + } + + function getArrayBuffer( json, uuid ) { + + if ( arrayBufferMap[ uuid ] !== undefined ) return arrayBufferMap[ uuid ]; + + const arrayBuffers = json.arrayBuffers; + const arrayBuffer = arrayBuffers[ uuid ]; + + const ab = new Uint32Array( arrayBuffer ).buffer; + + arrayBufferMap[ uuid ] = ab; + + return ab; + + } + + const geometry = json.isInstancedBufferGeometry ? new InstancedBufferGeometry() : new BufferGeometry(); + + const index = json.data.index; + + if ( index !== undefined ) { + + const typedArray = getTypedArray( index.type, index.array ); + geometry.setIndex( new BufferAttribute( typedArray, 1 ) ); + + } + + const attributes = json.data.attributes; + + for ( const key in attributes ) { + + const attribute = attributes[ key ]; + let bufferAttribute; + + if ( attribute.isInterleavedBufferAttribute ) { + + const interleavedBuffer = getInterleavedBuffer( json.data, attribute.data ); + bufferAttribute = new InterleavedBufferAttribute( interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized ); + + } else { + + const typedArray = getTypedArray( attribute.type, attribute.array ); + const bufferAttributeConstr = attribute.isInstancedBufferAttribute ? InstancedBufferAttribute : BufferAttribute; + bufferAttribute = new bufferAttributeConstr( typedArray, attribute.itemSize, attribute.normalized ); + + } + + if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name; + if ( attribute.usage !== undefined ) bufferAttribute.setUsage( attribute.usage ); + + if ( attribute.updateRange !== undefined ) { + + bufferAttribute.updateRange.offset = attribute.updateRange.offset; + bufferAttribute.updateRange.count = attribute.updateRange.count; + + } + + geometry.setAttribute( key, bufferAttribute ); + + } + + const morphAttributes = json.data.morphAttributes; + + if ( morphAttributes ) { + + for ( const key in morphAttributes ) { + + const attributeArray = morphAttributes[ key ]; + + const array = []; + + for ( let i = 0, il = attributeArray.length; i < il; i ++ ) { + + const attribute = attributeArray[ i ]; + let bufferAttribute; + + if ( attribute.isInterleavedBufferAttribute ) { + + const interleavedBuffer = getInterleavedBuffer( json.data, attribute.data ); + bufferAttribute = new InterleavedBufferAttribute( interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized ); + + } else { + + const typedArray = getTypedArray( attribute.type, attribute.array ); + bufferAttribute = new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ); + + } + + if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name; + array.push( bufferAttribute ); + + } + + geometry.morphAttributes[ key ] = array; + + } + + } + + const morphTargetsRelative = json.data.morphTargetsRelative; + + if ( morphTargetsRelative ) { + + geometry.morphTargetsRelative = true; + + } + + const groups = json.data.groups || json.data.drawcalls || json.data.offsets; + + if ( groups !== undefined ) { + + for ( let i = 0, n = groups.length; i !== n; ++ i ) { + + const group = groups[ i ]; + + geometry.addGroup( group.start, group.count, group.materialIndex ); + + } + + } + + const boundingSphere = json.data.boundingSphere; + + if ( boundingSphere !== undefined ) { + + const center = new Vector3(); + + if ( boundingSphere.center !== undefined ) { + + center.fromArray( boundingSphere.center ); + + } + + geometry.boundingSphere = new Sphere( center, boundingSphere.radius ); + + } + + if ( json.name ) geometry.name = json.name; + if ( json.userData ) geometry.userData = json.userData; + + return geometry; + + } + +} + +class ObjectLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + const path = ( this.path === '' ) ? LoaderUtils.extractUrlBase( url ) : this.path; + this.resourcePath = this.resourcePath || path; + + const loader = new FileLoader( this.manager ); + loader.setPath( this.path ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( this.withCredentials ); + loader.load( url, function ( text ) { + + let json = null; + + try { + + json = JSON.parse( text ); + + } catch ( error ) { + + if ( onError !== undefined ) onError( error ); + + console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message ); + + return; + + } + + const metadata = json.metadata; + + if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) { + + console.error( 'THREE.ObjectLoader: Can\'t load ' + url ); + return; + + } + + scope.parse( json, onLoad ); + + }, onProgress, onError ); + + } + + async loadAsync( url, onProgress ) { + + const scope = this; + + const path = ( this.path === '' ) ? LoaderUtils.extractUrlBase( url ) : this.path; + this.resourcePath = this.resourcePath || path; + + const loader = new FileLoader( this.manager ); + loader.setPath( this.path ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( this.withCredentials ); + + const text = await loader.loadAsync( url, onProgress ); + + const json = JSON.parse( text ); + + const metadata = json.metadata; + + if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) { + + throw new Error( 'THREE.ObjectLoader: Can\'t load ' + url ); + + } + + return await scope.parseAsync( json ); + + } + + parse( json, onLoad ) { + + const animations = this.parseAnimations( json.animations ); + const shapes = this.parseShapes( json.shapes ); + const geometries = this.parseGeometries( json.geometries, shapes ); + + const images = this.parseImages( json.images, function () { + + if ( onLoad !== undefined ) onLoad( object ); + + } ); + + const textures = this.parseTextures( json.textures, images ); + const materials = this.parseMaterials( json.materials, textures ); + + const object = this.parseObject( json.object, geometries, materials, textures, animations ); + const skeletons = this.parseSkeletons( json.skeletons, object ); + + this.bindSkeletons( object, skeletons ); + + // + + if ( onLoad !== undefined ) { + + let hasImages = false; + + for ( const uuid in images ) { + + if ( images[ uuid ] instanceof HTMLImageElement ) { + + hasImages = true; + break; + + } + + } + + if ( hasImages === false ) onLoad( object ); + + } + + return object; + + } + + async parseAsync( json ) { + + const animations = this.parseAnimations( json.animations ); + const shapes = this.parseShapes( json.shapes ); + const geometries = this.parseGeometries( json.geometries, shapes ); + + const images = await this.parseImagesAsync( json.images ); + + const textures = this.parseTextures( json.textures, images ); + const materials = this.parseMaterials( json.materials, textures ); + + const object = this.parseObject( json.object, geometries, materials, textures, animations ); + const skeletons = this.parseSkeletons( json.skeletons, object ); + + this.bindSkeletons( object, skeletons ); + + return object; + + } + + parseShapes( json ) { + + const shapes = {}; + + if ( json !== undefined ) { + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + const shape = new Shape().fromJSON( json[ i ] ); + + shapes[ shape.uuid ] = shape; + + } + + } + + return shapes; + + } + + parseSkeletons( json, object ) { + + const skeletons = {}; + const bones = {}; + + // generate bone lookup table + + object.traverse( function ( child ) { + + if ( child.isBone ) bones[ child.uuid ] = child; + + } ); + + // create skeletons + + if ( json !== undefined ) { + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + const skeleton = new Skeleton().fromJSON( json[ i ], bones ); + + skeletons[ skeleton.uuid ] = skeleton; + + } + + } + + return skeletons; + + } + + parseGeometries( json, shapes ) { + + const geometries = {}; + + if ( json !== undefined ) { + + const bufferGeometryLoader = new BufferGeometryLoader(); + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + let geometry; + const data = json[ i ]; + + switch ( data.type ) { + + case 'BufferGeometry': + case 'InstancedBufferGeometry': + + geometry = bufferGeometryLoader.parse( data ); + + break; + + case 'Geometry': + + console.error( 'THREE.ObjectLoader: The legacy Geometry type is no longer supported.' ); + + break; + + default: + + if ( data.type in Geometries ) { + + geometry = Geometries[ data.type ].fromJSON( data, shapes ); + + } else { + + console.warn( `THREE.ObjectLoader: Unsupported geometry type "${ data.type }"` ); + + } + + } + + geometry.uuid = data.uuid; + + if ( data.name !== undefined ) geometry.name = data.name; + if ( geometry.isBufferGeometry === true && data.userData !== undefined ) geometry.userData = data.userData; + + geometries[ data.uuid ] = geometry; + + } + + } + + return geometries; + + } + + parseMaterials( json, textures ) { + + const cache = {}; // MultiMaterial + const materials = {}; + + if ( json !== undefined ) { + + const loader = new MaterialLoader(); + loader.setTextures( textures ); + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + const data = json[ i ]; + + if ( data.type === 'MultiMaterial' ) { + + // Deprecated + + const array = []; + + for ( let j = 0; j < data.materials.length; j ++ ) { + + const material = data.materials[ j ]; + + if ( cache[ material.uuid ] === undefined ) { + + cache[ material.uuid ] = loader.parse( material ); + + } + + array.push( cache[ material.uuid ] ); + + } + + materials[ data.uuid ] = array; + + } else { + + if ( cache[ data.uuid ] === undefined ) { + + cache[ data.uuid ] = loader.parse( data ); + + } + + materials[ data.uuid ] = cache[ data.uuid ]; + + } + + } + + } + + return materials; + + } + + parseAnimations( json ) { + + const animations = {}; + + if ( json !== undefined ) { + + for ( let i = 0; i < json.length; i ++ ) { + + const data = json[ i ]; + + const clip = AnimationClip.parse( data ); + + animations[ clip.uuid ] = clip; + + } + + } + + return animations; + + } + + parseImages( json, onLoad ) { + + const scope = this; + const images = {}; + + let loader; + + function loadImage( url ) { + + scope.manager.itemStart( url ); + + return loader.load( url, function () { + + scope.manager.itemEnd( url ); + + }, undefined, function () { + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + } ); + + } + + function deserializeImage( image ) { + + if ( typeof image === 'string' ) { + + const url = image; + + const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( url ) ? url : scope.resourcePath + url; + + return loadImage( path ); + + } else { + + if ( image.data ) { + + return { + data: getTypedArray( image.type, image.data ), + width: image.width, + height: image.height + }; + + } else { + + return null; + + } + + } + + } + + if ( json !== undefined && json.length > 0 ) { + + const manager = new LoadingManager( onLoad ); + + loader = new ImageLoader( manager ); + loader.setCrossOrigin( this.crossOrigin ); + + for ( let i = 0, il = json.length; i < il; i ++ ) { + + const image = json[ i ]; + const url = image.url; + + if ( Array.isArray( url ) ) { + + // load array of images e.g CubeTexture + + images[ image.uuid ] = []; + + for ( let j = 0, jl = url.length; j < jl; j ++ ) { + + const currentUrl = url[ j ]; + + const deserializedImage = deserializeImage( currentUrl ); + + if ( deserializedImage !== null ) { + + if ( deserializedImage instanceof HTMLImageElement ) { + + images[ image.uuid ].push( deserializedImage ); + + } else { + + // special case: handle array of data textures for cube textures + + images[ image.uuid ].push( new DataTexture( deserializedImage.data, deserializedImage.width, deserializedImage.height ) ); + + } + + } + + } + + } else { + + // load single image + + const deserializedImage = deserializeImage( image.url ); + + if ( deserializedImage !== null ) { + + images[ image.uuid ] = deserializedImage; + + } + + } + + } + + } + + return images; + + } + + async parseImagesAsync( json ) { + + const scope = this; + const images = {}; + + let loader; + + async function deserializeImage( image ) { + + if ( typeof image === 'string' ) { + + const url = image; + + const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( url ) ? url : scope.resourcePath + url; + + return await loader.loadAsync( path ); + + } else { + + if ( image.data ) { + + return { + data: getTypedArray( image.type, image.data ), + width: image.width, + height: image.height + }; + + } else { + + return null; + + } + + } + + } + + if ( json !== undefined && json.length > 0 ) { + + loader = new ImageLoader( this.manager ); + loader.setCrossOrigin( this.crossOrigin ); + + for ( let i = 0, il = json.length; i < il; i ++ ) { + + const image = json[ i ]; + const url = image.url; + + if ( Array.isArray( url ) ) { + + // load array of images e.g CubeTexture + + images[ image.uuid ] = []; + + for ( let j = 0, jl = url.length; j < jl; j ++ ) { + + const currentUrl = url[ j ]; + + const deserializedImage = await deserializeImage( currentUrl ); + + if ( deserializedImage !== null ) { + + if ( deserializedImage instanceof HTMLImageElement ) { + + images[ image.uuid ].push( deserializedImage ); + + } else { + + // special case: handle array of data textures for cube textures + + images[ image.uuid ].push( new DataTexture( deserializedImage.data, deserializedImage.width, deserializedImage.height ) ); + + } + + } + + } + + } else { + + // load single image + + const deserializedImage = await deserializeImage( image.url ); + + if ( deserializedImage !== null ) { + + images[ image.uuid ] = deserializedImage; + + } + + } + + } + + } + + return images; + + } + + parseTextures( json, images ) { + + function parseConstant( value, type ) { + + if ( typeof value === 'number' ) return value; + + console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value ); + + return type[ value ]; + + } + + const textures = {}; + + if ( json !== undefined ) { + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + const data = json[ i ]; + + if ( data.image === undefined ) { + + console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid ); + + } + + if ( images[ data.image ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined image', data.image ); + + } + + let texture; + const image = images[ data.image ]; + + if ( Array.isArray( image ) ) { + + texture = new CubeTexture( image ); + + if ( image.length === 6 ) texture.needsUpdate = true; + + } else { + + if ( image && image.data ) { + + texture = new DataTexture( image.data, image.width, image.height ); + + } else { + + texture = new Texture( image ); + + } + + if ( image ) texture.needsUpdate = true; // textures can have undefined image data + + } + + texture.uuid = data.uuid; + + if ( data.name !== undefined ) texture.name = data.name; + + if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING ); + + if ( data.offset !== undefined ) texture.offset.fromArray( data.offset ); + if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat ); + if ( data.center !== undefined ) texture.center.fromArray( data.center ); + if ( data.rotation !== undefined ) texture.rotation = data.rotation; + + if ( data.wrap !== undefined ) { + + texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING ); + texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING ); + + } + + if ( data.format !== undefined ) texture.format = data.format; + if ( data.type !== undefined ) texture.type = data.type; + if ( data.encoding !== undefined ) texture.encoding = data.encoding; + + if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER ); + if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER ); + if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy; + + if ( data.flipY !== undefined ) texture.flipY = data.flipY; + + if ( data.premultiplyAlpha !== undefined ) texture.premultiplyAlpha = data.premultiplyAlpha; + if ( data.unpackAlignment !== undefined ) texture.unpackAlignment = data.unpackAlignment; + + if ( data.userData !== undefined ) texture.userData = data.userData; + + textures[ data.uuid ] = texture; + + } + + } + + return textures; + + } + + parseObject( data, geometries, materials, textures, animations ) { + + let object; + + function getGeometry( name ) { + + if ( geometries[ name ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined geometry', name ); + + } + + return geometries[ name ]; + + } + + function getMaterial( name ) { + + if ( name === undefined ) return undefined; + + if ( Array.isArray( name ) ) { + + const array = []; + + for ( let i = 0, l = name.length; i < l; i ++ ) { + + const uuid = name[ i ]; + + if ( materials[ uuid ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined material', uuid ); + + } + + array.push( materials[ uuid ] ); + + } + + return array; + + } + + if ( materials[ name ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined material', name ); + + } + + return materials[ name ]; + + } + + function getTexture( uuid ) { + + if ( textures[ uuid ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined texture', uuid ); + + } + + return textures[ uuid ]; + + } + + let geometry, material; + + switch ( data.type ) { + + case 'Scene': + + object = new Scene(); + + if ( data.background !== undefined ) { + + if ( Number.isInteger( data.background ) ) { + + object.background = new Color( data.background ); + + } else { + + object.background = getTexture( data.background ); + + } + + } + + if ( data.environment !== undefined ) { + + object.environment = getTexture( data.environment ); + + } + + if ( data.fog !== undefined ) { + + if ( data.fog.type === 'Fog' ) { + + object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far ); + + } else if ( data.fog.type === 'FogExp2' ) { + + object.fog = new FogExp2( data.fog.color, data.fog.density ); + + } + + } + + break; + + case 'PerspectiveCamera': + + object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far ); + + if ( data.focus !== undefined ) object.focus = data.focus; + if ( data.zoom !== undefined ) object.zoom = data.zoom; + if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge; + if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset; + if ( data.view !== undefined ) object.view = Object.assign( {}, data.view ); + + break; + + case 'OrthographicCamera': + + object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far ); + + if ( data.zoom !== undefined ) object.zoom = data.zoom; + if ( data.view !== undefined ) object.view = Object.assign( {}, data.view ); + + break; + + case 'AmbientLight': + + object = new AmbientLight( data.color, data.intensity ); + + break; + + case 'DirectionalLight': + + object = new DirectionalLight( data.color, data.intensity ); + + break; + + case 'PointLight': + + object = new PointLight( data.color, data.intensity, data.distance, data.decay ); + + break; + + case 'RectAreaLight': + + object = new RectAreaLight( data.color, data.intensity, data.width, data.height ); + + break; + + case 'SpotLight': + + object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay ); + + break; + + case 'HemisphereLight': + + object = new HemisphereLight( data.color, data.groundColor, data.intensity ); + + break; + + case 'LightProbe': + + object = new LightProbe().fromJSON( data ); + + break; + + case 'SkinnedMesh': + + geometry = getGeometry( data.geometry ); + material = getMaterial( data.material ); + + object = new SkinnedMesh( geometry, material ); + + if ( data.bindMode !== undefined ) object.bindMode = data.bindMode; + if ( data.bindMatrix !== undefined ) object.bindMatrix.fromArray( data.bindMatrix ); + if ( data.skeleton !== undefined ) object.skeleton = data.skeleton; + + break; + + case 'Mesh': + + geometry = getGeometry( data.geometry ); + material = getMaterial( data.material ); + + object = new Mesh( geometry, material ); + + break; + + case 'InstancedMesh': + + geometry = getGeometry( data.geometry ); + material = getMaterial( data.material ); + const count = data.count; + const instanceMatrix = data.instanceMatrix; + const instanceColor = data.instanceColor; + + object = new InstancedMesh( geometry, material, count ); + object.instanceMatrix = new InstancedBufferAttribute( new Float32Array( instanceMatrix.array ), 16 ); + if ( instanceColor !== undefined ) object.instanceColor = new InstancedBufferAttribute( new Float32Array( instanceColor.array ), instanceColor.itemSize ); + + break; + + case 'LOD': + + object = new LOD(); + + break; + + case 'Line': + + object = new Line( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'LineLoop': + + object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'LineSegments': + + object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'PointCloud': + case 'Points': + + object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'Sprite': + + object = new Sprite( getMaterial( data.material ) ); + + break; + + case 'Group': + + object = new Group(); + + break; + + case 'Bone': + + object = new Bone(); + + break; + + default: + + object = new Object3D(); + + } + + object.uuid = data.uuid; + + if ( data.name !== undefined ) object.name = data.name; + + if ( data.matrix !== undefined ) { + + object.matrix.fromArray( data.matrix ); + + if ( data.matrixAutoUpdate !== undefined ) object.matrixAutoUpdate = data.matrixAutoUpdate; + if ( object.matrixAutoUpdate ) object.matrix.decompose( object.position, object.quaternion, object.scale ); + + } else { + + if ( data.position !== undefined ) object.position.fromArray( data.position ); + if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation ); + if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion ); + if ( data.scale !== undefined ) object.scale.fromArray( data.scale ); + + } + + if ( data.castShadow !== undefined ) object.castShadow = data.castShadow; + if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow; + + if ( data.shadow ) { + + if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias; + if ( data.shadow.normalBias !== undefined ) object.shadow.normalBias = data.shadow.normalBias; + if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius; + if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize ); + if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera ); + + } + + if ( data.visible !== undefined ) object.visible = data.visible; + if ( data.frustumCulled !== undefined ) object.frustumCulled = data.frustumCulled; + if ( data.renderOrder !== undefined ) object.renderOrder = data.renderOrder; + if ( data.userData !== undefined ) object.userData = data.userData; + if ( data.layers !== undefined ) object.layers.mask = data.layers; + + if ( data.children !== undefined ) { + + const children = data.children; + + for ( let i = 0; i < children.length; i ++ ) { + + object.add( this.parseObject( children[ i ], geometries, materials, textures, animations ) ); + + } + + } + + if ( data.animations !== undefined ) { + + const objectAnimations = data.animations; + + for ( let i = 0; i < objectAnimations.length; i ++ ) { + + const uuid = objectAnimations[ i ]; + + object.animations.push( animations[ uuid ] ); + + } + + } + + if ( data.type === 'LOD' ) { + + if ( data.autoUpdate !== undefined ) object.autoUpdate = data.autoUpdate; + + const levels = data.levels; + + for ( let l = 0; l < levels.length; l ++ ) { + + const level = levels[ l ]; + const child = object.getObjectByProperty( 'uuid', level.object ); + + if ( child !== undefined ) { + + object.addLevel( child, level.distance ); + + } + + } + + } + + return object; + + } + + bindSkeletons( object, skeletons ) { + + if ( Object.keys( skeletons ).length === 0 ) return; + + object.traverse( function ( child ) { + + if ( child.isSkinnedMesh === true && child.skeleton !== undefined ) { + + const skeleton = skeletons[ child.skeleton ]; + + if ( skeleton === undefined ) { + + console.warn( 'THREE.ObjectLoader: No skeleton found with UUID:', child.skeleton ); + + } else { + + child.bind( skeleton, child.bindMatrix ); + + } + + } + + } ); + + } + + /* DEPRECATED */ + + setTexturePath( value ) { + + console.warn( 'THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath().' ); + return this.setResourcePath( value ); + + } + +} + +const TEXTURE_MAPPING = { + UVMapping: UVMapping, + CubeReflectionMapping: CubeReflectionMapping, + CubeRefractionMapping: CubeRefractionMapping, + EquirectangularReflectionMapping: EquirectangularReflectionMapping, + EquirectangularRefractionMapping: EquirectangularRefractionMapping, + CubeUVReflectionMapping: CubeUVReflectionMapping, + CubeUVRefractionMapping: CubeUVRefractionMapping +}; + +const TEXTURE_WRAPPING = { + RepeatWrapping: RepeatWrapping, + ClampToEdgeWrapping: ClampToEdgeWrapping, + MirroredRepeatWrapping: MirroredRepeatWrapping +}; + +const TEXTURE_FILTER = { + NearestFilter: NearestFilter, + NearestMipmapNearestFilter: NearestMipmapNearestFilter, + NearestMipmapLinearFilter: NearestMipmapLinearFilter, + LinearFilter: LinearFilter, + LinearMipmapNearestFilter: LinearMipmapNearestFilter, + LinearMipmapLinearFilter: LinearMipmapLinearFilter +}; + +class ImageBitmapLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + if ( typeof createImageBitmap === 'undefined' ) { + + console.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' ); + + } + + if ( typeof fetch === 'undefined' ) { + + console.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' ); + + } + + this.options = { premultiplyAlpha: 'none' }; + + } + + setOptions( options ) { + + this.options = options; + + return this; + + } + + load( url, onLoad, onProgress, onError ) { + + if ( url === undefined ) url = ''; + + if ( this.path !== undefined ) url = this.path + url; + + url = this.manager.resolveURL( url ); + + const scope = this; + + const cached = Cache.get( url ); + + if ( cached !== undefined ) { + + scope.manager.itemStart( url ); + + setTimeout( function () { + + if ( onLoad ) onLoad( cached ); + + scope.manager.itemEnd( url ); + + }, 0 ); + + return cached; + + } + + const fetchOptions = {}; + fetchOptions.credentials = ( this.crossOrigin === 'anonymous' ) ? 'same-origin' : 'include'; + fetchOptions.headers = this.requestHeader; + + fetch( url, fetchOptions ).then( function ( res ) { + + return res.blob(); + + } ).then( function ( blob ) { + + return createImageBitmap( blob, Object.assign( scope.options, { colorSpaceConversion: 'none' } ) ); + + } ).then( function ( imageBitmap ) { + + Cache.add( url, imageBitmap ); + + if ( onLoad ) onLoad( imageBitmap ); + + scope.manager.itemEnd( url ); + + } ).catch( function ( e ) { + + if ( onError ) onError( e ); + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + } ); + + scope.manager.itemStart( url ); + + } + +} + +ImageBitmapLoader.prototype.isImageBitmapLoader = true; + +let _context; + +const AudioContext = { + + getContext: function () { + + if ( _context === undefined ) { + + _context = new ( window.AudioContext || window.webkitAudioContext )(); + + } + + return _context; + + }, + + setContext: function ( value ) { + + _context = value; + + } + +}; + +class AudioLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( this.manager ); + loader.setResponseType( 'arraybuffer' ); + loader.setPath( this.path ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( this.withCredentials ); + loader.load( url, function ( buffer ) { + + try { + + // Create a copy of the buffer. The `decodeAudioData` method + // detaches the buffer when complete, preventing reuse. + const bufferCopy = buffer.slice( 0 ); + + const context = AudioContext.getContext(); + context.decodeAudioData( bufferCopy, function ( audioBuffer ) { + + onLoad( audioBuffer ); + + } ); + + } catch ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + + } + + }, onProgress, onError ); + + } + +} + +class HemisphereLightProbe extends LightProbe { + + constructor( skyColor, groundColor, intensity = 1 ) { + + super( undefined, intensity ); + + const color1 = new Color().set( skyColor ); + const color2 = new Color().set( groundColor ); + + const sky = new Vector3( color1.r, color1.g, color1.b ); + const ground = new Vector3( color2.r, color2.g, color2.b ); + + // without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI ); + const c0 = Math.sqrt( Math.PI ); + const c1 = c0 * Math.sqrt( 0.75 ); + + this.sh.coefficients[ 0 ].copy( sky ).add( ground ).multiplyScalar( c0 ); + this.sh.coefficients[ 1 ].copy( sky ).sub( ground ).multiplyScalar( c1 ); + + } + +} + +HemisphereLightProbe.prototype.isHemisphereLightProbe = true; + +class AmbientLightProbe extends LightProbe { + + constructor( color, intensity = 1 ) { + + super( undefined, intensity ); + + const color1 = new Color().set( color ); + + // without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI ); + this.sh.coefficients[ 0 ].set( color1.r, color1.g, color1.b ).multiplyScalar( 2 * Math.sqrt( Math.PI ) ); + + } + +} + +AmbientLightProbe.prototype.isAmbientLightProbe = true; + +const _eyeRight = /*@__PURE__*/ new Matrix4(); +const _eyeLeft = /*@__PURE__*/ new Matrix4(); + +class StereoCamera { + + constructor() { + + this.type = 'StereoCamera'; + + this.aspect = 1; + + this.eyeSep = 0.064; + + this.cameraL = new PerspectiveCamera(); + this.cameraL.layers.enable( 1 ); + this.cameraL.matrixAutoUpdate = false; + + this.cameraR = new PerspectiveCamera(); + this.cameraR.layers.enable( 2 ); + this.cameraR.matrixAutoUpdate = false; + + this._cache = { + focus: null, + fov: null, + aspect: null, + near: null, + far: null, + zoom: null, + eyeSep: null + }; + + } + + update( camera ) { + + const cache = this._cache; + + const needsUpdate = cache.focus !== camera.focus || cache.fov !== camera.fov || + cache.aspect !== camera.aspect * this.aspect || cache.near !== camera.near || + cache.far !== camera.far || cache.zoom !== camera.zoom || cache.eyeSep !== this.eyeSep; + + if ( needsUpdate ) { + + cache.focus = camera.focus; + cache.fov = camera.fov; + cache.aspect = camera.aspect * this.aspect; + cache.near = camera.near; + cache.far = camera.far; + cache.zoom = camera.zoom; + cache.eyeSep = this.eyeSep; + + // Off-axis stereoscopic effect based on + // http://paulbourke.net/stereographics/stereorender/ + + const projectionMatrix = camera.projectionMatrix.clone(); + const eyeSepHalf = cache.eyeSep / 2; + const eyeSepOnProjection = eyeSepHalf * cache.near / cache.focus; + const ymax = ( cache.near * Math.tan( DEG2RAD * cache.fov * 0.5 ) ) / cache.zoom; + let xmin, xmax; + + // translate xOffset + + _eyeLeft.elements[ 12 ] = - eyeSepHalf; + _eyeRight.elements[ 12 ] = eyeSepHalf; + + // for left eye + + xmin = - ymax * cache.aspect + eyeSepOnProjection; + xmax = ymax * cache.aspect + eyeSepOnProjection; + + projectionMatrix.elements[ 0 ] = 2 * cache.near / ( xmax - xmin ); + projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin ); + + this.cameraL.projectionMatrix.copy( projectionMatrix ); + + // for right eye + + xmin = - ymax * cache.aspect - eyeSepOnProjection; + xmax = ymax * cache.aspect - eyeSepOnProjection; + + projectionMatrix.elements[ 0 ] = 2 * cache.near / ( xmax - xmin ); + projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin ); + + this.cameraR.projectionMatrix.copy( projectionMatrix ); + + } + + this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( _eyeLeft ); + this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( _eyeRight ); + + } + +} + +class Clock { + + constructor( autoStart = true ) { + + this.autoStart = autoStart; + + this.startTime = 0; + this.oldTime = 0; + this.elapsedTime = 0; + + this.running = false; + + } + + start() { + + this.startTime = now(); + + this.oldTime = this.startTime; + this.elapsedTime = 0; + this.running = true; + + } + + stop() { + + this.getElapsedTime(); + this.running = false; + this.autoStart = false; + + } + + getElapsedTime() { + + this.getDelta(); + return this.elapsedTime; + + } + + getDelta() { + + let diff = 0; + + if ( this.autoStart && ! this.running ) { + + this.start(); + return 0; + + } + + if ( this.running ) { + + const newTime = now(); + + diff = ( newTime - this.oldTime ) / 1000; + this.oldTime = newTime; + + this.elapsedTime += diff; + + } + + return diff; + + } + +} + +function now() { + + return ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732 + +} + +const _position$1 = /*@__PURE__*/ new Vector3(); +const _quaternion$1 = /*@__PURE__*/ new Quaternion(); +const _scale$1 = /*@__PURE__*/ new Vector3(); +const _orientation$1 = /*@__PURE__*/ new Vector3(); + +class AudioListener extends Object3D { + + constructor() { + + super(); + + this.type = 'AudioListener'; + + this.context = AudioContext.getContext(); + + this.gain = this.context.createGain(); + this.gain.connect( this.context.destination ); + + this.filter = null; + + this.timeDelta = 0; + + // private + + this._clock = new Clock(); + + } + + getInput() { + + return this.gain; + + } + + removeFilter() { + + if ( this.filter !== null ) { + + this.gain.disconnect( this.filter ); + this.filter.disconnect( this.context.destination ); + this.gain.connect( this.context.destination ); + this.filter = null; + + } + + return this; + + } + + getFilter() { + + return this.filter; + + } + + setFilter( value ) { + + if ( this.filter !== null ) { + + this.gain.disconnect( this.filter ); + this.filter.disconnect( this.context.destination ); + + } else { + + this.gain.disconnect( this.context.destination ); + + } + + this.filter = value; + this.gain.connect( this.filter ); + this.filter.connect( this.context.destination ); + + return this; + + } + + getMasterVolume() { + + return this.gain.gain.value; + + } + + setMasterVolume( value ) { + + this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 ); + + return this; + + } + + updateMatrixWorld( force ) { + + super.updateMatrixWorld( force ); + + const listener = this.context.listener; + const up = this.up; + + this.timeDelta = this._clock.getDelta(); + + this.matrixWorld.decompose( _position$1, _quaternion$1, _scale$1 ); + + _orientation$1.set( 0, 0, - 1 ).applyQuaternion( _quaternion$1 ); + + if ( listener.positionX ) { + + // code path for Chrome (see #14393) + + const endTime = this.context.currentTime + this.timeDelta; + + listener.positionX.linearRampToValueAtTime( _position$1.x, endTime ); + listener.positionY.linearRampToValueAtTime( _position$1.y, endTime ); + listener.positionZ.linearRampToValueAtTime( _position$1.z, endTime ); + listener.forwardX.linearRampToValueAtTime( _orientation$1.x, endTime ); + listener.forwardY.linearRampToValueAtTime( _orientation$1.y, endTime ); + listener.forwardZ.linearRampToValueAtTime( _orientation$1.z, endTime ); + listener.upX.linearRampToValueAtTime( up.x, endTime ); + listener.upY.linearRampToValueAtTime( up.y, endTime ); + listener.upZ.linearRampToValueAtTime( up.z, endTime ); + + } else { + + listener.setPosition( _position$1.x, _position$1.y, _position$1.z ); + listener.setOrientation( _orientation$1.x, _orientation$1.y, _orientation$1.z, up.x, up.y, up.z ); + + } + + } + +} + +class Audio extends Object3D { + + constructor( listener ) { + + super(); + + this.type = 'Audio'; + + this.listener = listener; + this.context = listener.context; + + this.gain = this.context.createGain(); + this.gain.connect( listener.getInput() ); + + this.autoplay = false; + + this.buffer = null; + this.detune = 0; + this.loop = false; + this.loopStart = 0; + this.loopEnd = 0; + this.offset = 0; + this.duration = undefined; + this.playbackRate = 1; + this.isPlaying = false; + this.hasPlaybackControl = true; + this.source = null; + this.sourceType = 'empty'; + + this._startedAt = 0; + this._progress = 0; + this._connected = false; + + this.filters = []; + + } + + getOutput() { + + return this.gain; + + } + + setNodeSource( audioNode ) { + + this.hasPlaybackControl = false; + this.sourceType = 'audioNode'; + this.source = audioNode; + this.connect(); + + return this; + + } + + setMediaElementSource( mediaElement ) { + + this.hasPlaybackControl = false; + this.sourceType = 'mediaNode'; + this.source = this.context.createMediaElementSource( mediaElement ); + this.connect(); + + return this; + + } + + setMediaStreamSource( mediaStream ) { + + this.hasPlaybackControl = false; + this.sourceType = 'mediaStreamNode'; + this.source = this.context.createMediaStreamSource( mediaStream ); + this.connect(); + + return this; + + } + + setBuffer( audioBuffer ) { + + this.buffer = audioBuffer; + this.sourceType = 'buffer'; + + if ( this.autoplay ) this.play(); + + return this; + + } + + play( delay = 0 ) { + + if ( this.isPlaying === true ) { + + console.warn( 'THREE.Audio: Audio is already playing.' ); + return; + + } + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this._startedAt = this.context.currentTime + delay; + + const source = this.context.createBufferSource(); + source.buffer = this.buffer; + source.loop = this.loop; + source.loopStart = this.loopStart; + source.loopEnd = this.loopEnd; + source.onended = this.onEnded.bind( this ); + source.start( this._startedAt, this._progress + this.offset, this.duration ); + + this.isPlaying = true; + + this.source = source; + + this.setDetune( this.detune ); + this.setPlaybackRate( this.playbackRate ); + + return this.connect(); + + } + + pause() { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + if ( this.isPlaying === true ) { + + // update current progress + + this._progress += Math.max( this.context.currentTime - this._startedAt, 0 ) * this.playbackRate; + + if ( this.loop === true ) { + + // ensure _progress does not exceed duration with looped audios + + this._progress = this._progress % ( this.duration || this.buffer.duration ); + + } + + this.source.stop(); + this.source.onended = null; + + this.isPlaying = false; + + } + + return this; + + } + + stop() { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this._progress = 0; + + this.source.stop(); + this.source.onended = null; + this.isPlaying = false; + + return this; + + } + + connect() { + + if ( this.filters.length > 0 ) { + + this.source.connect( this.filters[ 0 ] ); + + for ( let i = 1, l = this.filters.length; i < l; i ++ ) { + + this.filters[ i - 1 ].connect( this.filters[ i ] ); + + } + + this.filters[ this.filters.length - 1 ].connect( this.getOutput() ); + + } else { + + this.source.connect( this.getOutput() ); + + } + + this._connected = true; + + return this; + + } + + disconnect() { + + if ( this.filters.length > 0 ) { + + this.source.disconnect( this.filters[ 0 ] ); + + for ( let i = 1, l = this.filters.length; i < l; i ++ ) { + + this.filters[ i - 1 ].disconnect( this.filters[ i ] ); + + } + + this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() ); + + } else { + + this.source.disconnect( this.getOutput() ); + + } + + this._connected = false; + + return this; + + } + + getFilters() { + + return this.filters; + + } + + setFilters( value ) { + + if ( ! value ) value = []; + + if ( this._connected === true ) { + + this.disconnect(); + this.filters = value.slice(); + this.connect(); + + } else { + + this.filters = value.slice(); + + } + + return this; + + } + + setDetune( value ) { + + this.detune = value; + + if ( this.source.detune === undefined ) return; // only set detune when available + + if ( this.isPlaying === true ) { + + this.source.detune.setTargetAtTime( this.detune, this.context.currentTime, 0.01 ); + + } + + return this; + + } + + getDetune() { + + return this.detune; + + } + + getFilter() { + + return this.getFilters()[ 0 ]; + + } + + setFilter( filter ) { + + return this.setFilters( filter ? [ filter ] : [] ); + + } + + setPlaybackRate( value ) { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this.playbackRate = value; + + if ( this.isPlaying === true ) { + + this.source.playbackRate.setTargetAtTime( this.playbackRate, this.context.currentTime, 0.01 ); + + } + + return this; + + } + + getPlaybackRate() { + + return this.playbackRate; + + } + + onEnded() { + + this.isPlaying = false; + + } + + getLoop() { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return false; + + } + + return this.loop; + + } + + setLoop( value ) { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this.loop = value; + + if ( this.isPlaying === true ) { + + this.source.loop = this.loop; + + } + + return this; + + } + + setLoopStart( value ) { + + this.loopStart = value; + + return this; + + } + + setLoopEnd( value ) { + + this.loopEnd = value; + + return this; + + } + + getVolume() { + + return this.gain.gain.value; + + } + + setVolume( value ) { + + this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 ); + + return this; + + } + +} + +const _position = /*@__PURE__*/ new Vector3(); +const _quaternion = /*@__PURE__*/ new Quaternion(); +const _scale = /*@__PURE__*/ new Vector3(); +const _orientation = /*@__PURE__*/ new Vector3(); + +class PositionalAudio extends Audio { + + constructor( listener ) { + + super( listener ); + + this.panner = this.context.createPanner(); + this.panner.panningModel = 'HRTF'; + this.panner.connect( this.gain ); + + } + + getOutput() { + + return this.panner; + + } + + getRefDistance() { + + return this.panner.refDistance; + + } + + setRefDistance( value ) { + + this.panner.refDistance = value; + + return this; + + } + + getRolloffFactor() { + + return this.panner.rolloffFactor; + + } + + setRolloffFactor( value ) { + + this.panner.rolloffFactor = value; + + return this; + + } + + getDistanceModel() { + + return this.panner.distanceModel; + + } + + setDistanceModel( value ) { + + this.panner.distanceModel = value; + + return this; + + } + + getMaxDistance() { + + return this.panner.maxDistance; + + } + + setMaxDistance( value ) { + + this.panner.maxDistance = value; + + return this; + + } + + setDirectionalCone( coneInnerAngle, coneOuterAngle, coneOuterGain ) { + + this.panner.coneInnerAngle = coneInnerAngle; + this.panner.coneOuterAngle = coneOuterAngle; + this.panner.coneOuterGain = coneOuterGain; + + return this; + + } + + updateMatrixWorld( force ) { + + super.updateMatrixWorld( force ); + + if ( this.hasPlaybackControl === true && this.isPlaying === false ) return; + + this.matrixWorld.decompose( _position, _quaternion, _scale ); + + _orientation.set( 0, 0, 1 ).applyQuaternion( _quaternion ); + + const panner = this.panner; + + if ( panner.positionX ) { + + // code path for Chrome and Firefox (see #14393) + + const endTime = this.context.currentTime + this.listener.timeDelta; + + panner.positionX.linearRampToValueAtTime( _position.x, endTime ); + panner.positionY.linearRampToValueAtTime( _position.y, endTime ); + panner.positionZ.linearRampToValueAtTime( _position.z, endTime ); + panner.orientationX.linearRampToValueAtTime( _orientation.x, endTime ); + panner.orientationY.linearRampToValueAtTime( _orientation.y, endTime ); + panner.orientationZ.linearRampToValueAtTime( _orientation.z, endTime ); + + } else { + + panner.setPosition( _position.x, _position.y, _position.z ); + panner.setOrientation( _orientation.x, _orientation.y, _orientation.z ); + + } + + } + +} + +class AudioAnalyser { + + constructor( audio, fftSize = 2048 ) { + + this.analyser = audio.context.createAnalyser(); + this.analyser.fftSize = fftSize; + + this.data = new Uint8Array( this.analyser.frequencyBinCount ); + + audio.getOutput().connect( this.analyser ); + + } + + + getFrequencyData() { + + this.analyser.getByteFrequencyData( this.data ); + + return this.data; + + } + + getAverageFrequency() { + + let value = 0; + const data = this.getFrequencyData(); + + for ( let i = 0; i < data.length; i ++ ) { + + value += data[ i ]; + + } + + return value / data.length; + + } + +} + +class PropertyMixer { + + constructor( binding, typeName, valueSize ) { + + this.binding = binding; + this.valueSize = valueSize; + + let mixFunction, + mixFunctionAdditive, + setIdentity; + + // buffer layout: [ incoming | accu0 | accu1 | orig | addAccu | (optional work) ] + // + // interpolators can use .buffer as their .result + // the data then goes to 'incoming' + // + // 'accu0' and 'accu1' are used frame-interleaved for + // the cumulative result and are compared to detect + // changes + // + // 'orig' stores the original state of the property + // + // 'add' is used for additive cumulative results + // + // 'work' is optional and is only present for quaternion types. It is used + // to store intermediate quaternion multiplication results + + switch ( typeName ) { + + case 'quaternion': + mixFunction = this._slerp; + mixFunctionAdditive = this._slerpAdditive; + setIdentity = this._setAdditiveIdentityQuaternion; + + this.buffer = new Float64Array( valueSize * 6 ); + this._workIndex = 5; + break; + + case 'string': + case 'bool': + mixFunction = this._select; + + // Use the regular mix function and for additive on these types, + // additive is not relevant for non-numeric types + mixFunctionAdditive = this._select; + + setIdentity = this._setAdditiveIdentityOther; + + this.buffer = new Array( valueSize * 5 ); + break; + + default: + mixFunction = this._lerp; + mixFunctionAdditive = this._lerpAdditive; + setIdentity = this._setAdditiveIdentityNumeric; + + this.buffer = new Float64Array( valueSize * 5 ); + + } + + this._mixBufferRegion = mixFunction; + this._mixBufferRegionAdditive = mixFunctionAdditive; + this._setIdentity = setIdentity; + this._origIndex = 3; + this._addIndex = 4; + + this.cumulativeWeight = 0; + this.cumulativeWeightAdditive = 0; + + this.useCount = 0; + this.referenceCount = 0; + + } + + // accumulate data in the 'incoming' region into 'accu' + accumulate( accuIndex, weight ) { + + // note: happily accumulating nothing when weight = 0, the caller knows + // the weight and shouldn't have made the call in the first place + + const buffer = this.buffer, + stride = this.valueSize, + offset = accuIndex * stride + stride; + + let currentWeight = this.cumulativeWeight; + + if ( currentWeight === 0 ) { + + // accuN := incoming * weight + + for ( let i = 0; i !== stride; ++ i ) { + + buffer[ offset + i ] = buffer[ i ]; + + } + + currentWeight = weight; + + } else { + + // accuN := accuN + incoming * weight + + currentWeight += weight; + const mix = weight / currentWeight; + this._mixBufferRegion( buffer, offset, 0, mix, stride ); + + } + + this.cumulativeWeight = currentWeight; + + } + + // accumulate data in the 'incoming' region into 'add' + accumulateAdditive( weight ) { + + const buffer = this.buffer, + stride = this.valueSize, + offset = stride * this._addIndex; + + if ( this.cumulativeWeightAdditive === 0 ) { + + // add = identity + + this._setIdentity(); + + } + + // add := add + incoming * weight + + this._mixBufferRegionAdditive( buffer, offset, 0, weight, stride ); + this.cumulativeWeightAdditive += weight; + + } + + // apply the state of 'accu' to the binding when accus differ + apply( accuIndex ) { + + const stride = this.valueSize, + buffer = this.buffer, + offset = accuIndex * stride + stride, + + weight = this.cumulativeWeight, + weightAdditive = this.cumulativeWeightAdditive, + + binding = this.binding; + + this.cumulativeWeight = 0; + this.cumulativeWeightAdditive = 0; + + if ( weight < 1 ) { + + // accuN := accuN + original * ( 1 - cumulativeWeight ) + + const originalValueOffset = stride * this._origIndex; + + this._mixBufferRegion( + buffer, offset, originalValueOffset, 1 - weight, stride ); + + } + + if ( weightAdditive > 0 ) { + + // accuN := accuN + additive accuN + + this._mixBufferRegionAdditive( buffer, offset, this._addIndex * stride, 1, stride ); + + } + + for ( let i = stride, e = stride + stride; i !== e; ++ i ) { + + if ( buffer[ i ] !== buffer[ i + stride ] ) { + + // value has changed -> update scene graph + + binding.setValue( buffer, offset ); + break; + + } + + } + + } + + // remember the state of the bound property and copy it to both accus + saveOriginalState() { + + const binding = this.binding; + + const buffer = this.buffer, + stride = this.valueSize, + + originalValueOffset = stride * this._origIndex; + + binding.getValue( buffer, originalValueOffset ); + + // accu[0..1] := orig -- initially detect changes against the original + for ( let i = stride, e = originalValueOffset; i !== e; ++ i ) { + + buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ]; + + } + + // Add to identity for additive + this._setIdentity(); + + this.cumulativeWeight = 0; + this.cumulativeWeightAdditive = 0; + + } + + // apply the state previously taken via 'saveOriginalState' to the binding + restoreOriginalState() { + + const originalValueOffset = this.valueSize * 3; + this.binding.setValue( this.buffer, originalValueOffset ); + + } + + _setAdditiveIdentityNumeric() { + + const startIndex = this._addIndex * this.valueSize; + const endIndex = startIndex + this.valueSize; + + for ( let i = startIndex; i < endIndex; i ++ ) { + + this.buffer[ i ] = 0; + + } + + } + + _setAdditiveIdentityQuaternion() { + + this._setAdditiveIdentityNumeric(); + this.buffer[ this._addIndex * this.valueSize + 3 ] = 1; + + } + + _setAdditiveIdentityOther() { + + const startIndex = this._origIndex * this.valueSize; + const targetIndex = this._addIndex * this.valueSize; + + for ( let i = 0; i < this.valueSize; i ++ ) { + + this.buffer[ targetIndex + i ] = this.buffer[ startIndex + i ]; + + } + + } + + + // mix functions + + _select( buffer, dstOffset, srcOffset, t, stride ) { + + if ( t >= 0.5 ) { + + for ( let i = 0; i !== stride; ++ i ) { + + buffer[ dstOffset + i ] = buffer[ srcOffset + i ]; + + } + + } + + } + + _slerp( buffer, dstOffset, srcOffset, t ) { + + Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t ); + + } + + _slerpAdditive( buffer, dstOffset, srcOffset, t, stride ) { + + const workOffset = this._workIndex * stride; + + // Store result in intermediate buffer offset + Quaternion.multiplyQuaternionsFlat( buffer, workOffset, buffer, dstOffset, buffer, srcOffset ); + + // Slerp to the intermediate result + Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, workOffset, t ); + + } + + _lerp( buffer, dstOffset, srcOffset, t, stride ) { + + const s = 1 - t; + + for ( let i = 0; i !== stride; ++ i ) { + + const j = dstOffset + i; + + buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t; + + } + + } + + _lerpAdditive( buffer, dstOffset, srcOffset, t, stride ) { + + for ( let i = 0; i !== stride; ++ i ) { + + const j = dstOffset + i; + + buffer[ j ] = buffer[ j ] + buffer[ srcOffset + i ] * t; + + } + + } + +} + +// Characters [].:/ are reserved for track binding syntax. +const _RESERVED_CHARS_RE = '\\[\\]\\.:\\/'; +const _reservedRe = new RegExp( '[' + _RESERVED_CHARS_RE + ']', 'g' ); + +// Attempts to allow node names from any language. ES5's `\w` regexp matches +// only latin characters, and the unicode \p{L} is not yet supported. So +// instead, we exclude reserved characters and match everything else. +const _wordChar = '[^' + _RESERVED_CHARS_RE + ']'; +const _wordCharOrDot = '[^' + _RESERVED_CHARS_RE.replace( '\\.', '' ) + ']'; + +// Parent directories, delimited by '/' or ':'. Currently unused, but must +// be matched to parse the rest of the track name. +const _directoryRe = /((?:WC+[\/:])*)/.source.replace( 'WC', _wordChar ); + +// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'. +const _nodeRe = /(WCOD+)?/.source.replace( 'WCOD', _wordCharOrDot ); + +// Object on target node, and accessor. May not contain reserved +// characters. Accessor may contain any character except closing bracket. +const _objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace( 'WC', _wordChar ); + +// Property and accessor. May not contain reserved characters. Accessor may +// contain any non-bracket characters. +const _propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace( 'WC', _wordChar ); + +const _trackRe = new RegExp( '' + + '^' + + _directoryRe + + _nodeRe + + _objectRe + + _propertyRe + + '$' +); + +const _supportedObjectNames = [ 'material', 'materials', 'bones' ]; + +class Composite { + + constructor( targetGroup, path, optionalParsedPath ) { + + const parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path ); + + this._targetGroup = targetGroup; + this._bindings = targetGroup.subscribe_( path, parsedPath ); + + } + + getValue( array, offset ) { + + this.bind(); // bind all binding + + const firstValidIndex = this._targetGroup.nCachedObjects_, + binding = this._bindings[ firstValidIndex ]; + + // and only call .getValue on the first + if ( binding !== undefined ) binding.getValue( array, offset ); + + } + + setValue( array, offset ) { + + const bindings = this._bindings; + + for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) { + + bindings[ i ].setValue( array, offset ); + + } + + } + + bind() { + + const bindings = this._bindings; + + for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) { + + bindings[ i ].bind(); + + } + + } + + unbind() { + + const bindings = this._bindings; + + for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) { + + bindings[ i ].unbind(); + + } + + } + +} + +// Note: This class uses a State pattern on a per-method basis: +// 'bind' sets 'this.getValue' / 'setValue' and shadows the +// prototype version of these methods with one that represents +// the bound state. When the property is not found, the methods +// become no-ops. +class PropertyBinding { + + constructor( rootNode, path, parsedPath ) { + + this.path = path; + this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path ); + + this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode; + + this.rootNode = rootNode; + + // initial state of these methods that calls 'bind' + this.getValue = this._getValue_unbound; + this.setValue = this._setValue_unbound; + + } + + + static create( root, path, parsedPath ) { + + if ( ! ( root && root.isAnimationObjectGroup ) ) { + + return new PropertyBinding( root, path, parsedPath ); + + } else { + + return new PropertyBinding.Composite( root, path, parsedPath ); + + } + + } + + /** + * Replaces spaces with underscores and removes unsupported characters from + * node names, to ensure compatibility with parseTrackName(). + * + * @param {string} name Node name to be sanitized. + * @return {string} + */ + static sanitizeNodeName( name ) { + + return name.replace( /\s/g, '_' ).replace( _reservedRe, '' ); + + } + + static parseTrackName( trackName ) { + + const matches = _trackRe.exec( trackName ); + + if ( ! matches ) { + + throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName ); + + } + + const results = { + // directoryName: matches[ 1 ], // (tschw) currently unused + nodeName: matches[ 2 ], + objectName: matches[ 3 ], + objectIndex: matches[ 4 ], + propertyName: matches[ 5 ], // required + propertyIndex: matches[ 6 ] + }; + + const lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' ); + + if ( lastDot !== undefined && lastDot !== - 1 ) { + + const objectName = results.nodeName.substring( lastDot + 1 ); + + // Object names must be checked against an allowlist. Otherwise, there + // is no way to parse 'foo.bar.baz': 'baz' must be a property, but + // 'bar' could be the objectName, or part of a nodeName (which can + // include '.' characters). + if ( _supportedObjectNames.indexOf( objectName ) !== - 1 ) { + + results.nodeName = results.nodeName.substring( 0, lastDot ); + results.objectName = objectName; + + } + + } + + if ( results.propertyName === null || results.propertyName.length === 0 ) { + + throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName ); + + } + + return results; + + } + + static findNode( root, nodeName ) { + + if ( ! nodeName || nodeName === '' || nodeName === '.' || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) { + + return root; + + } + + // search into skeleton bones. + if ( root.skeleton ) { + + const bone = root.skeleton.getBoneByName( nodeName ); + + if ( bone !== undefined ) { + + return bone; + + } + + } + + // search into node subtree. + if ( root.children ) { + + const searchNodeSubtree = function ( children ) { + + for ( let i = 0; i < children.length; i ++ ) { + + const childNode = children[ i ]; + + if ( childNode.name === nodeName || childNode.uuid === nodeName ) { + + return childNode; + + } + + const result = searchNodeSubtree( childNode.children ); + + if ( result ) return result; + + } + + return null; + + }; + + const subTreeNode = searchNodeSubtree( root.children ); + + if ( subTreeNode ) { + + return subTreeNode; + + } + + } + + return null; + + } + + // these are used to "bind" a nonexistent property + _getValue_unavailable() {} + _setValue_unavailable() {} + + // Getters + + _getValue_direct( buffer, offset ) { + + buffer[ offset ] = this.targetObject[ this.propertyName ]; + + } + + _getValue_array( buffer, offset ) { + + const source = this.resolvedProperty; + + for ( let i = 0, n = source.length; i !== n; ++ i ) { + + buffer[ offset ++ ] = source[ i ]; + + } + + } + + _getValue_arrayElement( buffer, offset ) { + + buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ]; + + } + + _getValue_toArray( buffer, offset ) { + + this.resolvedProperty.toArray( buffer, offset ); + + } + + // Direct + + _setValue_direct( buffer, offset ) { + + this.targetObject[ this.propertyName ] = buffer[ offset ]; + + } + + _setValue_direct_setNeedsUpdate( buffer, offset ) { + + this.targetObject[ this.propertyName ] = buffer[ offset ]; + this.targetObject.needsUpdate = true; + + } + + _setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) { + + this.targetObject[ this.propertyName ] = buffer[ offset ]; + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + // EntireArray + + _setValue_array( buffer, offset ) { + + const dest = this.resolvedProperty; + + for ( let i = 0, n = dest.length; i !== n; ++ i ) { + + dest[ i ] = buffer[ offset ++ ]; + + } + + } + + _setValue_array_setNeedsUpdate( buffer, offset ) { + + const dest = this.resolvedProperty; + + for ( let i = 0, n = dest.length; i !== n; ++ i ) { + + dest[ i ] = buffer[ offset ++ ]; + + } + + this.targetObject.needsUpdate = true; + + } + + _setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) { + + const dest = this.resolvedProperty; + + for ( let i = 0, n = dest.length; i !== n; ++ i ) { + + dest[ i ] = buffer[ offset ++ ]; + + } + + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + // ArrayElement + + _setValue_arrayElement( buffer, offset ) { + + this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ]; + + } + + _setValue_arrayElement_setNeedsUpdate( buffer, offset ) { + + this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ]; + this.targetObject.needsUpdate = true; + + } + + _setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) { + + this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ]; + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + // HasToFromArray + + _setValue_fromArray( buffer, offset ) { + + this.resolvedProperty.fromArray( buffer, offset ); + + } + + _setValue_fromArray_setNeedsUpdate( buffer, offset ) { + + this.resolvedProperty.fromArray( buffer, offset ); + this.targetObject.needsUpdate = true; + + } + + _setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) { + + this.resolvedProperty.fromArray( buffer, offset ); + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + _getValue_unbound( targetArray, offset ) { + + this.bind(); + this.getValue( targetArray, offset ); + + } + + _setValue_unbound( sourceArray, offset ) { + + this.bind(); + this.setValue( sourceArray, offset ); + + } + + // create getter / setter pair for a property in the scene graph + bind() { + + let targetObject = this.node; + const parsedPath = this.parsedPath; + + const objectName = parsedPath.objectName; + const propertyName = parsedPath.propertyName; + let propertyIndex = parsedPath.propertyIndex; + + if ( ! targetObject ) { + + targetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode; + + this.node = targetObject; + + } + + // set fail state so we can just 'return' on error + this.getValue = this._getValue_unavailable; + this.setValue = this._setValue_unavailable; + + // ensure there is a value node + if ( ! targetObject ) { + + console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' ); + return; + + } + + if ( objectName ) { + + let objectIndex = parsedPath.objectIndex; + + // special cases were we need to reach deeper into the hierarchy to get the face materials.... + switch ( objectName ) { + + case 'materials': + + if ( ! targetObject.material ) { + + console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this ); + return; + + } + + if ( ! targetObject.material.materials ) { + + console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this ); + return; + + } + + targetObject = targetObject.material.materials; + + break; + + case 'bones': + + if ( ! targetObject.skeleton ) { + + console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this ); + return; + + } + + // potential future optimization: skip this if propertyIndex is already an integer + // and convert the integer string to a true integer. + + targetObject = targetObject.skeleton.bones; + + // support resolving morphTarget names into indices. + for ( let i = 0; i < targetObject.length; i ++ ) { + + if ( targetObject[ i ].name === objectIndex ) { + + objectIndex = i; + break; + + } + + } + + break; + + default: + + if ( targetObject[ objectName ] === undefined ) { + + console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this ); + return; + + } + + targetObject = targetObject[ objectName ]; + + } + + + if ( objectIndex !== undefined ) { + + if ( targetObject[ objectIndex ] === undefined ) { + + console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject ); + return; + + } + + targetObject = targetObject[ objectIndex ]; + + } + + } + + // resolve property + const nodeProperty = targetObject[ propertyName ]; + + if ( nodeProperty === undefined ) { + + const nodeName = parsedPath.nodeName; + + console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName + + '.' + propertyName + ' but it wasn\'t found.', targetObject ); + return; + + } + + // determine versioning scheme + let versioning = this.Versioning.None; + + this.targetObject = targetObject; + + if ( targetObject.needsUpdate !== undefined ) { // material + + versioning = this.Versioning.NeedsUpdate; + + } else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform + + versioning = this.Versioning.MatrixWorldNeedsUpdate; + + } + + // determine how the property gets bound + let bindingType = this.BindingType.Direct; + + if ( propertyIndex !== undefined ) { + + // access a sub element of the property array (only primitives are supported right now) + + if ( propertyName === 'morphTargetInfluences' ) { + + // potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer. + + // support resolving morphTarget names into indices. + if ( ! targetObject.geometry ) { + + console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this ); + return; + + } + + if ( targetObject.geometry.isBufferGeometry ) { + + if ( ! targetObject.geometry.morphAttributes ) { + + console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this ); + return; + + } + + if ( targetObject.morphTargetDictionary[ propertyIndex ] !== undefined ) { + + propertyIndex = targetObject.morphTargetDictionary[ propertyIndex ]; + + } + + + } else { + + console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.', this ); + return; + + } + + } + + bindingType = this.BindingType.ArrayElement; + + this.resolvedProperty = nodeProperty; + this.propertyIndex = propertyIndex; + + } else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) { + + // must use copy for Object3D.Euler/Quaternion + + bindingType = this.BindingType.HasFromToArray; + + this.resolvedProperty = nodeProperty; + + } else if ( Array.isArray( nodeProperty ) ) { + + bindingType = this.BindingType.EntireArray; + + this.resolvedProperty = nodeProperty; + + } else { + + this.propertyName = propertyName; + + } + + // select getter / setter + this.getValue = this.GetterByBindingType[ bindingType ]; + this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ]; + + } + + unbind() { + + this.node = null; + + // back to the prototype version of getValue / setValue + // note: avoiding to mutate the shape of 'this' via 'delete' + this.getValue = this._getValue_unbound; + this.setValue = this._setValue_unbound; + + } + +} + +PropertyBinding.Composite = Composite; + +PropertyBinding.prototype.BindingType = { + Direct: 0, + EntireArray: 1, + ArrayElement: 2, + HasFromToArray: 3 +}; + +PropertyBinding.prototype.Versioning = { + None: 0, + NeedsUpdate: 1, + MatrixWorldNeedsUpdate: 2 +}; + +PropertyBinding.prototype.GetterByBindingType = [ + + PropertyBinding.prototype._getValue_direct, + PropertyBinding.prototype._getValue_array, + PropertyBinding.prototype._getValue_arrayElement, + PropertyBinding.prototype._getValue_toArray, + +]; + +PropertyBinding.prototype.SetterByBindingTypeAndVersioning = [ + + [ + // Direct + PropertyBinding.prototype._setValue_direct, + PropertyBinding.prototype._setValue_direct_setNeedsUpdate, + PropertyBinding.prototype._setValue_direct_setMatrixWorldNeedsUpdate, + + ], [ + + // EntireArray + + PropertyBinding.prototype._setValue_array, + PropertyBinding.prototype._setValue_array_setNeedsUpdate, + PropertyBinding.prototype._setValue_array_setMatrixWorldNeedsUpdate, + + ], [ + + // ArrayElement + PropertyBinding.prototype._setValue_arrayElement, + PropertyBinding.prototype._setValue_arrayElement_setNeedsUpdate, + PropertyBinding.prototype._setValue_arrayElement_setMatrixWorldNeedsUpdate, + + ], [ + + // HasToFromArray + PropertyBinding.prototype._setValue_fromArray, + PropertyBinding.prototype._setValue_fromArray_setNeedsUpdate, + PropertyBinding.prototype._setValue_fromArray_setMatrixWorldNeedsUpdate, + + ] + +]; + +/** + * + * A group of objects that receives a shared animation state. + * + * Usage: + * + * - Add objects you would otherwise pass as 'root' to the + * constructor or the .clipAction method of AnimationMixer. + * + * - Instead pass this object as 'root'. + * + * - You can also add and remove objects later when the mixer + * is running. + * + * Note: + * + * Objects of this class appear as one object to the mixer, + * so cache control of the individual objects must be done + * on the group. + * + * Limitation: + * + * - The animated properties must be compatible among the + * all objects in the group. + * + * - A single property can either be controlled through a + * target group or directly, but not both. + */ + +class AnimationObjectGroup { + + constructor() { + + this.uuid = generateUUID(); + + // cached objects followed by the active ones + this._objects = Array.prototype.slice.call( arguments ); + + this.nCachedObjects_ = 0; // threshold + // note: read by PropertyBinding.Composite + + const indices = {}; + this._indicesByUUID = indices; // for bookkeeping + + for ( let i = 0, n = arguments.length; i !== n; ++ i ) { + + indices[ arguments[ i ].uuid ] = i; + + } + + this._paths = []; // inside: string + this._parsedPaths = []; // inside: { we don't care, here } + this._bindings = []; // inside: Array< PropertyBinding > + this._bindingsIndicesByPath = {}; // inside: indices in these arrays + + const scope = this; + + this.stats = { + + objects: { + get total() { + + return scope._objects.length; + + }, + get inUse() { + + return this.total - scope.nCachedObjects_; + + } + }, + get bindingsPerObject() { + + return scope._bindings.length; + + } + + }; + + } + + add() { + + const objects = this._objects, + indicesByUUID = this._indicesByUUID, + paths = this._paths, + parsedPaths = this._parsedPaths, + bindings = this._bindings, + nBindings = bindings.length; + + let knownObject = undefined, + nObjects = objects.length, + nCachedObjects = this.nCachedObjects_; + + for ( let i = 0, n = arguments.length; i !== n; ++ i ) { + + const object = arguments[ i ], + uuid = object.uuid; + let index = indicesByUUID[ uuid ]; + + if ( index === undefined ) { + + // unknown object -> add it to the ACTIVE region + + index = nObjects ++; + indicesByUUID[ uuid ] = index; + objects.push( object ); + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + bindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) ); + + } + + } else if ( index < nCachedObjects ) { + + knownObject = objects[ index ]; + + // move existing object to the ACTIVE region + + const firstActiveIndex = -- nCachedObjects, + lastCachedObject = objects[ firstActiveIndex ]; + + indicesByUUID[ lastCachedObject.uuid ] = index; + objects[ index ] = lastCachedObject; + + indicesByUUID[ uuid ] = firstActiveIndex; + objects[ firstActiveIndex ] = object; + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + const bindingsForPath = bindings[ j ], + lastCached = bindingsForPath[ firstActiveIndex ]; + + let binding = bindingsForPath[ index ]; + + bindingsForPath[ index ] = lastCached; + + if ( binding === undefined ) { + + // since we do not bother to create new bindings + // for objects that are cached, the binding may + // or may not exist + + binding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ); + + } + + bindingsForPath[ firstActiveIndex ] = binding; + + } + + } else if ( objects[ index ] !== knownObject ) { + + console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' + + 'detected. Clean the caches or recreate your infrastructure when reloading scenes.' ); + + } // else the object is already where we want it to be + + } // for arguments + + this.nCachedObjects_ = nCachedObjects; + + } + + remove() { + + const objects = this._objects, + indicesByUUID = this._indicesByUUID, + bindings = this._bindings, + nBindings = bindings.length; + + let nCachedObjects = this.nCachedObjects_; + + for ( let i = 0, n = arguments.length; i !== n; ++ i ) { + + const object = arguments[ i ], + uuid = object.uuid, + index = indicesByUUID[ uuid ]; + + if ( index !== undefined && index >= nCachedObjects ) { + + // move existing object into the CACHED region + + const lastCachedIndex = nCachedObjects ++, + firstActiveObject = objects[ lastCachedIndex ]; + + indicesByUUID[ firstActiveObject.uuid ] = index; + objects[ index ] = firstActiveObject; + + indicesByUUID[ uuid ] = lastCachedIndex; + objects[ lastCachedIndex ] = object; + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + const bindingsForPath = bindings[ j ], + firstActive = bindingsForPath[ lastCachedIndex ], + binding = bindingsForPath[ index ]; + + bindingsForPath[ index ] = firstActive; + bindingsForPath[ lastCachedIndex ] = binding; + + } + + } + + } // for arguments + + this.nCachedObjects_ = nCachedObjects; + + } + + // remove & forget + uncache() { + + const objects = this._objects, + indicesByUUID = this._indicesByUUID, + bindings = this._bindings, + nBindings = bindings.length; + + let nCachedObjects = this.nCachedObjects_, + nObjects = objects.length; + + for ( let i = 0, n = arguments.length; i !== n; ++ i ) { + + const object = arguments[ i ], + uuid = object.uuid, + index = indicesByUUID[ uuid ]; + + if ( index !== undefined ) { + + delete indicesByUUID[ uuid ]; + + if ( index < nCachedObjects ) { + + // object is cached, shrink the CACHED region + + const firstActiveIndex = -- nCachedObjects, + lastCachedObject = objects[ firstActiveIndex ], + lastIndex = -- nObjects, + lastObject = objects[ lastIndex ]; + + // last cached object takes this object's place + indicesByUUID[ lastCachedObject.uuid ] = index; + objects[ index ] = lastCachedObject; + + // last object goes to the activated slot and pop + indicesByUUID[ lastObject.uuid ] = firstActiveIndex; + objects[ firstActiveIndex ] = lastObject; + objects.pop(); + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + const bindingsForPath = bindings[ j ], + lastCached = bindingsForPath[ firstActiveIndex ], + last = bindingsForPath[ lastIndex ]; + + bindingsForPath[ index ] = lastCached; + bindingsForPath[ firstActiveIndex ] = last; + bindingsForPath.pop(); + + } + + } else { + + // object is active, just swap with the last and pop + + const lastIndex = -- nObjects, + lastObject = objects[ lastIndex ]; + + if ( lastIndex > 0 ) { + + indicesByUUID[ lastObject.uuid ] = index; + + } + + objects[ index ] = lastObject; + objects.pop(); + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + const bindingsForPath = bindings[ j ]; + + bindingsForPath[ index ] = bindingsForPath[ lastIndex ]; + bindingsForPath.pop(); + + } + + } // cached or active + + } // if object is known + + } // for arguments + + this.nCachedObjects_ = nCachedObjects; + + } + + // Internal interface used by befriended PropertyBinding.Composite: + + subscribe_( path, parsedPath ) { + + // returns an array of bindings for the given path that is changed + // according to the contained objects in the group + + const indicesByPath = this._bindingsIndicesByPath; + let index = indicesByPath[ path ]; + const bindings = this._bindings; + + if ( index !== undefined ) return bindings[ index ]; + + const paths = this._paths, + parsedPaths = this._parsedPaths, + objects = this._objects, + nObjects = objects.length, + nCachedObjects = this.nCachedObjects_, + bindingsForPath = new Array( nObjects ); + + index = bindings.length; + + indicesByPath[ path ] = index; + + paths.push( path ); + parsedPaths.push( parsedPath ); + bindings.push( bindingsForPath ); + + for ( let i = nCachedObjects, n = objects.length; i !== n; ++ i ) { + + const object = objects[ i ]; + bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath ); + + } + + return bindingsForPath; + + } + + unsubscribe_( path ) { + + // tells the group to forget about a property path and no longer + // update the array previously obtained with 'subscribe_' + + const indicesByPath = this._bindingsIndicesByPath, + index = indicesByPath[ path ]; + + if ( index !== undefined ) { + + const paths = this._paths, + parsedPaths = this._parsedPaths, + bindings = this._bindings, + lastBindingsIndex = bindings.length - 1, + lastBindings = bindings[ lastBindingsIndex ], + lastBindingsPath = path[ lastBindingsIndex ]; + + indicesByPath[ lastBindingsPath ] = index; + + bindings[ index ] = lastBindings; + bindings.pop(); + + parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ]; + parsedPaths.pop(); + + paths[ index ] = paths[ lastBindingsIndex ]; + paths.pop(); + + } + + } + +} + +AnimationObjectGroup.prototype.isAnimationObjectGroup = true; + +class AnimationAction { + + constructor( mixer, clip, localRoot = null, blendMode = clip.blendMode ) { + + this._mixer = mixer; + this._clip = clip; + this._localRoot = localRoot; + this.blendMode = blendMode; + + const tracks = clip.tracks, + nTracks = tracks.length, + interpolants = new Array( nTracks ); + + const interpolantSettings = { + endingStart: ZeroCurvatureEnding, + endingEnd: ZeroCurvatureEnding + }; + + for ( let i = 0; i !== nTracks; ++ i ) { + + const interpolant = tracks[ i ].createInterpolant( null ); + interpolants[ i ] = interpolant; + interpolant.settings = interpolantSettings; + + } + + this._interpolantSettings = interpolantSettings; + + this._interpolants = interpolants; // bound by the mixer + + // inside: PropertyMixer (managed by the mixer) + this._propertyBindings = new Array( nTracks ); + + this._cacheIndex = null; // for the memory manager + this._byClipCacheIndex = null; // for the memory manager + + this._timeScaleInterpolant = null; + this._weightInterpolant = null; + + this.loop = LoopRepeat; + this._loopCount = - 1; + + // global mixer time when the action is to be started + // it's set back to 'null' upon start of the action + this._startTime = null; + + // scaled local time of the action + // gets clamped or wrapped to 0..clip.duration according to loop + this.time = 0; + + this.timeScale = 1; + this._effectiveTimeScale = 1; + + this.weight = 1; + this._effectiveWeight = 1; + + this.repetitions = Infinity; // no. of repetitions when looping + + this.paused = false; // true -> zero effective time scale + this.enabled = true; // false -> zero effective weight + + this.clampWhenFinished = false;// keep feeding the last frame? + + this.zeroSlopeAtStart = true;// for smooth interpolation w/o separate + this.zeroSlopeAtEnd = true;// clips for start, loop and end + + } + + // State & Scheduling + + play() { + + this._mixer._activateAction( this ); + + return this; + + } + + stop() { + + this._mixer._deactivateAction( this ); + + return this.reset(); + + } + + reset() { + + this.paused = false; + this.enabled = true; + + this.time = 0; // restart clip + this._loopCount = - 1;// forget previous loops + this._startTime = null;// forget scheduling + + return this.stopFading().stopWarping(); + + } + + isRunning() { + + return this.enabled && ! this.paused && this.timeScale !== 0 && + this._startTime === null && this._mixer._isActiveAction( this ); + + } + + // return true when play has been called + isScheduled() { + + return this._mixer._isActiveAction( this ); + + } + + startAt( time ) { + + this._startTime = time; + + return this; + + } + + setLoop( mode, repetitions ) { + + this.loop = mode; + this.repetitions = repetitions; + + return this; + + } + + // Weight + + // set the weight stopping any scheduled fading + // although .enabled = false yields an effective weight of zero, this + // method does *not* change .enabled, because it would be confusing + setEffectiveWeight( weight ) { + + this.weight = weight; + + // note: same logic as when updated at runtime + this._effectiveWeight = this.enabled ? weight : 0; + + return this.stopFading(); + + } + + // return the weight considering fading and .enabled + getEffectiveWeight() { + + return this._effectiveWeight; + + } + + fadeIn( duration ) { + + return this._scheduleFading( duration, 0, 1 ); + + } + + fadeOut( duration ) { + + return this._scheduleFading( duration, 1, 0 ); + + } + + crossFadeFrom( fadeOutAction, duration, warp ) { + + fadeOutAction.fadeOut( duration ); + this.fadeIn( duration ); + + if ( warp ) { + + const fadeInDuration = this._clip.duration, + fadeOutDuration = fadeOutAction._clip.duration, + + startEndRatio = fadeOutDuration / fadeInDuration, + endStartRatio = fadeInDuration / fadeOutDuration; + + fadeOutAction.warp( 1.0, startEndRatio, duration ); + this.warp( endStartRatio, 1.0, duration ); + + } + + return this; + + } + + crossFadeTo( fadeInAction, duration, warp ) { + + return fadeInAction.crossFadeFrom( this, duration, warp ); + + } + + stopFading() { + + const weightInterpolant = this._weightInterpolant; + + if ( weightInterpolant !== null ) { + + this._weightInterpolant = null; + this._mixer._takeBackControlInterpolant( weightInterpolant ); + + } + + return this; + + } + + // Time Scale Control + + // set the time scale stopping any scheduled warping + // although .paused = true yields an effective time scale of zero, this + // method does *not* change .paused, because it would be confusing + setEffectiveTimeScale( timeScale ) { + + this.timeScale = timeScale; + this._effectiveTimeScale = this.paused ? 0 : timeScale; + + return this.stopWarping(); + + } + + // return the time scale considering warping and .paused + getEffectiveTimeScale() { + + return this._effectiveTimeScale; + + } + + setDuration( duration ) { + + this.timeScale = this._clip.duration / duration; + + return this.stopWarping(); + + } + + syncWith( action ) { + + this.time = action.time; + this.timeScale = action.timeScale; + + return this.stopWarping(); + + } + + halt( duration ) { + + return this.warp( this._effectiveTimeScale, 0, duration ); + + } + + warp( startTimeScale, endTimeScale, duration ) { + + const mixer = this._mixer, + now = mixer.time, + timeScale = this.timeScale; + + let interpolant = this._timeScaleInterpolant; + + if ( interpolant === null ) { + + interpolant = mixer._lendControlInterpolant(); + this._timeScaleInterpolant = interpolant; + + } + + const times = interpolant.parameterPositions, + values = interpolant.sampleValues; + + times[ 0 ] = now; + times[ 1 ] = now + duration; + + values[ 0 ] = startTimeScale / timeScale; + values[ 1 ] = endTimeScale / timeScale; + + return this; + + } + + stopWarping() { + + const timeScaleInterpolant = this._timeScaleInterpolant; + + if ( timeScaleInterpolant !== null ) { + + this._timeScaleInterpolant = null; + this._mixer._takeBackControlInterpolant( timeScaleInterpolant ); + + } + + return this; + + } + + // Object Accessors + + getMixer() { + + return this._mixer; + + } + + getClip() { + + return this._clip; + + } + + getRoot() { + + return this._localRoot || this._mixer._root; + + } + + // Interna + + _update( time, deltaTime, timeDirection, accuIndex ) { + + // called by the mixer + + if ( ! this.enabled ) { + + // call ._updateWeight() to update ._effectiveWeight + + this._updateWeight( time ); + return; + + } + + const startTime = this._startTime; + + if ( startTime !== null ) { + + // check for scheduled start of action + + const timeRunning = ( time - startTime ) * timeDirection; + if ( timeRunning < 0 || timeDirection === 0 ) { + + return; // yet to come / don't decide when delta = 0 + + } + + // start + + this._startTime = null; // unschedule + deltaTime = timeDirection * timeRunning; + + } + + // apply time scale and advance time + + deltaTime *= this._updateTimeScale( time ); + const clipTime = this._updateTime( deltaTime ); + + // note: _updateTime may disable the action resulting in + // an effective weight of 0 + + const weight = this._updateWeight( time ); + + if ( weight > 0 ) { + + const interpolants = this._interpolants; + const propertyMixers = this._propertyBindings; + + switch ( this.blendMode ) { + + case AdditiveAnimationBlendMode: + + for ( let j = 0, m = interpolants.length; j !== m; ++ j ) { + + interpolants[ j ].evaluate( clipTime ); + propertyMixers[ j ].accumulateAdditive( weight ); + + } + + break; + + case NormalAnimationBlendMode: + default: + + for ( let j = 0, m = interpolants.length; j !== m; ++ j ) { + + interpolants[ j ].evaluate( clipTime ); + propertyMixers[ j ].accumulate( accuIndex, weight ); + + } + + } + + } + + } + + _updateWeight( time ) { + + let weight = 0; + + if ( this.enabled ) { + + weight = this.weight; + const interpolant = this._weightInterpolant; + + if ( interpolant !== null ) { + + const interpolantValue = interpolant.evaluate( time )[ 0 ]; + + weight *= interpolantValue; + + if ( time > interpolant.parameterPositions[ 1 ] ) { + + this.stopFading(); + + if ( interpolantValue === 0 ) { + + // faded out, disable + this.enabled = false; + + } + + } + + } + + } + + this._effectiveWeight = weight; + return weight; + + } + + _updateTimeScale( time ) { + + let timeScale = 0; + + if ( ! this.paused ) { + + timeScale = this.timeScale; + + const interpolant = this._timeScaleInterpolant; + + if ( interpolant !== null ) { + + const interpolantValue = interpolant.evaluate( time )[ 0 ]; + + timeScale *= interpolantValue; + + if ( time > interpolant.parameterPositions[ 1 ] ) { + + this.stopWarping(); + + if ( timeScale === 0 ) { + + // motion has halted, pause + this.paused = true; + + } else { + + // warp done - apply final time scale + this.timeScale = timeScale; + + } + + } + + } + + } + + this._effectiveTimeScale = timeScale; + return timeScale; + + } + + _updateTime( deltaTime ) { + + const duration = this._clip.duration; + const loop = this.loop; + + let time = this.time + deltaTime; + let loopCount = this._loopCount; + + const pingPong = ( loop === LoopPingPong ); + + if ( deltaTime === 0 ) { + + if ( loopCount === - 1 ) return time; + + return ( pingPong && ( loopCount & 1 ) === 1 ) ? duration - time : time; + + } + + if ( loop === LoopOnce ) { + + if ( loopCount === - 1 ) { + + // just started + + this._loopCount = 0; + this._setEndings( true, true, false ); + + } + + handle_stop: { + + if ( time >= duration ) { + + time = duration; + + } else if ( time < 0 ) { + + time = 0; + + } else { + + this.time = time; + + break handle_stop; + + } + + if ( this.clampWhenFinished ) this.paused = true; + else this.enabled = false; + + this.time = time; + + this._mixer.dispatchEvent( { + type: 'finished', action: this, + direction: deltaTime < 0 ? - 1 : 1 + } ); + + } + + } else { // repetitive Repeat or PingPong + + if ( loopCount === - 1 ) { + + // just started + + if ( deltaTime >= 0 ) { + + loopCount = 0; + + this._setEndings( true, this.repetitions === 0, pingPong ); + + } else { + + // when looping in reverse direction, the initial + // transition through zero counts as a repetition, + // so leave loopCount at -1 + + this._setEndings( this.repetitions === 0, true, pingPong ); + + } + + } + + if ( time >= duration || time < 0 ) { + + // wrap around + + const loopDelta = Math.floor( time / duration ); // signed + time -= duration * loopDelta; + + loopCount += Math.abs( loopDelta ); + + const pending = this.repetitions - loopCount; + + if ( pending <= 0 ) { + + // have to stop (switch state, clamp time, fire event) + + if ( this.clampWhenFinished ) this.paused = true; + else this.enabled = false; + + time = deltaTime > 0 ? duration : 0; + + this.time = time; + + this._mixer.dispatchEvent( { + type: 'finished', action: this, + direction: deltaTime > 0 ? 1 : - 1 + } ); + + } else { + + // keep running + + if ( pending === 1 ) { + + // entering the last round + + const atStart = deltaTime < 0; + this._setEndings( atStart, ! atStart, pingPong ); + + } else { + + this._setEndings( false, false, pingPong ); + + } + + this._loopCount = loopCount; + + this.time = time; + + this._mixer.dispatchEvent( { + type: 'loop', action: this, loopDelta: loopDelta + } ); + + } + + } else { + + this.time = time; + + } + + if ( pingPong && ( loopCount & 1 ) === 1 ) { + + // invert time for the "pong round" + + return duration - time; + + } + + } + + return time; + + } + + _setEndings( atStart, atEnd, pingPong ) { + + const settings = this._interpolantSettings; + + if ( pingPong ) { + + settings.endingStart = ZeroSlopeEnding; + settings.endingEnd = ZeroSlopeEnding; + + } else { + + // assuming for LoopOnce atStart == atEnd == true + + if ( atStart ) { + + settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding; + + } else { + + settings.endingStart = WrapAroundEnding; + + } + + if ( atEnd ) { + + settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding; + + } else { + + settings.endingEnd = WrapAroundEnding; + + } + + } + + } + + _scheduleFading( duration, weightNow, weightThen ) { + + const mixer = this._mixer, now = mixer.time; + let interpolant = this._weightInterpolant; + + if ( interpolant === null ) { + + interpolant = mixer._lendControlInterpolant(); + this._weightInterpolant = interpolant; + + } + + const times = interpolant.parameterPositions, + values = interpolant.sampleValues; + + times[ 0 ] = now; + values[ 0 ] = weightNow; + times[ 1 ] = now + duration; + values[ 1 ] = weightThen; + + return this; + + } + +} + +class AnimationMixer extends EventDispatcher { + + constructor( root ) { + + super(); + + this._root = root; + this._initMemoryManager(); + this._accuIndex = 0; + this.time = 0; + this.timeScale = 1.0; + + } + + _bindAction( action, prototypeAction ) { + + const root = action._localRoot || this._root, + tracks = action._clip.tracks, + nTracks = tracks.length, + bindings = action._propertyBindings, + interpolants = action._interpolants, + rootUuid = root.uuid, + bindingsByRoot = this._bindingsByRootAndName; + + let bindingsByName = bindingsByRoot[ rootUuid ]; + + if ( bindingsByName === undefined ) { + + bindingsByName = {}; + bindingsByRoot[ rootUuid ] = bindingsByName; + + } + + for ( let i = 0; i !== nTracks; ++ i ) { + + const track = tracks[ i ], + trackName = track.name; + + let binding = bindingsByName[ trackName ]; + + if ( binding !== undefined ) { + + bindings[ i ] = binding; + + } else { + + binding = bindings[ i ]; + + if ( binding !== undefined ) { + + // existing binding, make sure the cache knows + + if ( binding._cacheIndex === null ) { + + ++ binding.referenceCount; + this._addInactiveBinding( binding, rootUuid, trackName ); + + } + + continue; + + } + + const path = prototypeAction && prototypeAction. + _propertyBindings[ i ].binding.parsedPath; + + binding = new PropertyMixer( + PropertyBinding.create( root, trackName, path ), + track.ValueTypeName, track.getValueSize() ); + + ++ binding.referenceCount; + this._addInactiveBinding( binding, rootUuid, trackName ); + + bindings[ i ] = binding; + + } + + interpolants[ i ].resultBuffer = binding.buffer; + + } + + } + + _activateAction( action ) { + + if ( ! this._isActiveAction( action ) ) { + + if ( action._cacheIndex === null ) { + + // this action has been forgotten by the cache, but the user + // appears to be still using it -> rebind + + const rootUuid = ( action._localRoot || this._root ).uuid, + clipUuid = action._clip.uuid, + actionsForClip = this._actionsByClip[ clipUuid ]; + + this._bindAction( action, + actionsForClip && actionsForClip.knownActions[ 0 ] ); + + this._addInactiveAction( action, clipUuid, rootUuid ); + + } + + const bindings = action._propertyBindings; + + // increment reference counts / sort out state + for ( let i = 0, n = bindings.length; i !== n; ++ i ) { + + const binding = bindings[ i ]; + + if ( binding.useCount ++ === 0 ) { + + this._lendBinding( binding ); + binding.saveOriginalState(); + + } + + } + + this._lendAction( action ); + + } + + } + + _deactivateAction( action ) { + + if ( this._isActiveAction( action ) ) { + + const bindings = action._propertyBindings; + + // decrement reference counts / sort out state + for ( let i = 0, n = bindings.length; i !== n; ++ i ) { + + const binding = bindings[ i ]; + + if ( -- binding.useCount === 0 ) { + + binding.restoreOriginalState(); + this._takeBackBinding( binding ); + + } + + } + + this._takeBackAction( action ); + + } + + } + + // Memory manager + + _initMemoryManager() { + + this._actions = []; // 'nActiveActions' followed by inactive ones + this._nActiveActions = 0; + + this._actionsByClip = {}; + // inside: + // { + // knownActions: Array< AnimationAction > - used as prototypes + // actionByRoot: AnimationAction - lookup + // } + + + this._bindings = []; // 'nActiveBindings' followed by inactive ones + this._nActiveBindings = 0; + + this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer > + + + this._controlInterpolants = []; // same game as above + this._nActiveControlInterpolants = 0; + + const scope = this; + + this.stats = { + + actions: { + get total() { + + return scope._actions.length; + + }, + get inUse() { + + return scope._nActiveActions; + + } + }, + bindings: { + get total() { + + return scope._bindings.length; + + }, + get inUse() { + + return scope._nActiveBindings; + + } + }, + controlInterpolants: { + get total() { + + return scope._controlInterpolants.length; + + }, + get inUse() { + + return scope._nActiveControlInterpolants; + + } + } + + }; + + } + + // Memory management for AnimationAction objects + + _isActiveAction( action ) { + + const index = action._cacheIndex; + return index !== null && index < this._nActiveActions; + + } + + _addInactiveAction( action, clipUuid, rootUuid ) { + + const actions = this._actions, + actionsByClip = this._actionsByClip; + + let actionsForClip = actionsByClip[ clipUuid ]; + + if ( actionsForClip === undefined ) { + + actionsForClip = { + + knownActions: [ action ], + actionByRoot: {} + + }; + + action._byClipCacheIndex = 0; + + actionsByClip[ clipUuid ] = actionsForClip; + + } else { + + const knownActions = actionsForClip.knownActions; + + action._byClipCacheIndex = knownActions.length; + knownActions.push( action ); + + } + + action._cacheIndex = actions.length; + actions.push( action ); + + actionsForClip.actionByRoot[ rootUuid ] = action; + + } + + _removeInactiveAction( action ) { + + const actions = this._actions, + lastInactiveAction = actions[ actions.length - 1 ], + cacheIndex = action._cacheIndex; + + lastInactiveAction._cacheIndex = cacheIndex; + actions[ cacheIndex ] = lastInactiveAction; + actions.pop(); + + action._cacheIndex = null; + + + const clipUuid = action._clip.uuid, + actionsByClip = this._actionsByClip, + actionsForClip = actionsByClip[ clipUuid ], + knownActionsForClip = actionsForClip.knownActions, + + lastKnownAction = + knownActionsForClip[ knownActionsForClip.length - 1 ], + + byClipCacheIndex = action._byClipCacheIndex; + + lastKnownAction._byClipCacheIndex = byClipCacheIndex; + knownActionsForClip[ byClipCacheIndex ] = lastKnownAction; + knownActionsForClip.pop(); + + action._byClipCacheIndex = null; + + + const actionByRoot = actionsForClip.actionByRoot, + rootUuid = ( action._localRoot || this._root ).uuid; + + delete actionByRoot[ rootUuid ]; + + if ( knownActionsForClip.length === 0 ) { + + delete actionsByClip[ clipUuid ]; + + } + + this._removeInactiveBindingsForAction( action ); + + } + + _removeInactiveBindingsForAction( action ) { + + const bindings = action._propertyBindings; + + for ( let i = 0, n = bindings.length; i !== n; ++ i ) { + + const binding = bindings[ i ]; + + if ( -- binding.referenceCount === 0 ) { + + this._removeInactiveBinding( binding ); + + } + + } + + } + + _lendAction( action ) { + + // [ active actions | inactive actions ] + // [ active actions >| inactive actions ] + // s a + // <-swap-> + // a s + + const actions = this._actions, + prevIndex = action._cacheIndex, + + lastActiveIndex = this._nActiveActions ++, + + firstInactiveAction = actions[ lastActiveIndex ]; + + action._cacheIndex = lastActiveIndex; + actions[ lastActiveIndex ] = action; + + firstInactiveAction._cacheIndex = prevIndex; + actions[ prevIndex ] = firstInactiveAction; + + } + + _takeBackAction( action ) { + + // [ active actions | inactive actions ] + // [ active actions |< inactive actions ] + // a s + // <-swap-> + // s a + + const actions = this._actions, + prevIndex = action._cacheIndex, + + firstInactiveIndex = -- this._nActiveActions, + + lastActiveAction = actions[ firstInactiveIndex ]; + + action._cacheIndex = firstInactiveIndex; + actions[ firstInactiveIndex ] = action; + + lastActiveAction._cacheIndex = prevIndex; + actions[ prevIndex ] = lastActiveAction; + + } + + // Memory management for PropertyMixer objects + + _addInactiveBinding( binding, rootUuid, trackName ) { + + const bindingsByRoot = this._bindingsByRootAndName, + bindings = this._bindings; + + let bindingByName = bindingsByRoot[ rootUuid ]; + + if ( bindingByName === undefined ) { + + bindingByName = {}; + bindingsByRoot[ rootUuid ] = bindingByName; + + } + + bindingByName[ trackName ] = binding; + + binding._cacheIndex = bindings.length; + bindings.push( binding ); + + } + + _removeInactiveBinding( binding ) { + + const bindings = this._bindings, + propBinding = binding.binding, + rootUuid = propBinding.rootNode.uuid, + trackName = propBinding.path, + bindingsByRoot = this._bindingsByRootAndName, + bindingByName = bindingsByRoot[ rootUuid ], + + lastInactiveBinding = bindings[ bindings.length - 1 ], + cacheIndex = binding._cacheIndex; + + lastInactiveBinding._cacheIndex = cacheIndex; + bindings[ cacheIndex ] = lastInactiveBinding; + bindings.pop(); + + delete bindingByName[ trackName ]; + + if ( Object.keys( bindingByName ).length === 0 ) { + + delete bindingsByRoot[ rootUuid ]; + + } + + } + + _lendBinding( binding ) { + + const bindings = this._bindings, + prevIndex = binding._cacheIndex, + + lastActiveIndex = this._nActiveBindings ++, + + firstInactiveBinding = bindings[ lastActiveIndex ]; + + binding._cacheIndex = lastActiveIndex; + bindings[ lastActiveIndex ] = binding; + + firstInactiveBinding._cacheIndex = prevIndex; + bindings[ prevIndex ] = firstInactiveBinding; + + } + + _takeBackBinding( binding ) { + + const bindings = this._bindings, + prevIndex = binding._cacheIndex, + + firstInactiveIndex = -- this._nActiveBindings, + + lastActiveBinding = bindings[ firstInactiveIndex ]; + + binding._cacheIndex = firstInactiveIndex; + bindings[ firstInactiveIndex ] = binding; + + lastActiveBinding._cacheIndex = prevIndex; + bindings[ prevIndex ] = lastActiveBinding; + + } + + + // Memory management of Interpolants for weight and time scale + + _lendControlInterpolant() { + + const interpolants = this._controlInterpolants, + lastActiveIndex = this._nActiveControlInterpolants ++; + + let interpolant = interpolants[ lastActiveIndex ]; + + if ( interpolant === undefined ) { + + interpolant = new LinearInterpolant( + new Float32Array( 2 ), new Float32Array( 2 ), + 1, this._controlInterpolantsResultBuffer ); + + interpolant.__cacheIndex = lastActiveIndex; + interpolants[ lastActiveIndex ] = interpolant; + + } + + return interpolant; + + } + + _takeBackControlInterpolant( interpolant ) { + + const interpolants = this._controlInterpolants, + prevIndex = interpolant.__cacheIndex, + + firstInactiveIndex = -- this._nActiveControlInterpolants, + + lastActiveInterpolant = interpolants[ firstInactiveIndex ]; + + interpolant.__cacheIndex = firstInactiveIndex; + interpolants[ firstInactiveIndex ] = interpolant; + + lastActiveInterpolant.__cacheIndex = prevIndex; + interpolants[ prevIndex ] = lastActiveInterpolant; + + } + + // return an action for a clip optionally using a custom root target + // object (this method allocates a lot of dynamic memory in case a + // previously unknown clip/root combination is specified) + clipAction( clip, optionalRoot, blendMode ) { + + const root = optionalRoot || this._root, + rootUuid = root.uuid; + + let clipObject = typeof clip === 'string' ? AnimationClip.findByName( root, clip ) : clip; + + const clipUuid = clipObject !== null ? clipObject.uuid : clip; + + const actionsForClip = this._actionsByClip[ clipUuid ]; + let prototypeAction = null; + + if ( blendMode === undefined ) { + + if ( clipObject !== null ) { + + blendMode = clipObject.blendMode; + + } else { + + blendMode = NormalAnimationBlendMode; + + } + + } + + if ( actionsForClip !== undefined ) { + + const existingAction = actionsForClip.actionByRoot[ rootUuid ]; + + if ( existingAction !== undefined && existingAction.blendMode === blendMode ) { + + return existingAction; + + } + + // we know the clip, so we don't have to parse all + // the bindings again but can just copy + prototypeAction = actionsForClip.knownActions[ 0 ]; + + // also, take the clip from the prototype action + if ( clipObject === null ) + clipObject = prototypeAction._clip; + + } + + // clip must be known when specified via string + if ( clipObject === null ) return null; + + // allocate all resources required to run it + const newAction = new AnimationAction( this, clipObject, optionalRoot, blendMode ); + + this._bindAction( newAction, prototypeAction ); + + // and make the action known to the memory manager + this._addInactiveAction( newAction, clipUuid, rootUuid ); + + return newAction; + + } + + // get an existing action + existingAction( clip, optionalRoot ) { + + const root = optionalRoot || this._root, + rootUuid = root.uuid, + + clipObject = typeof clip === 'string' ? + AnimationClip.findByName( root, clip ) : clip, + + clipUuid = clipObject ? clipObject.uuid : clip, + + actionsForClip = this._actionsByClip[ clipUuid ]; + + if ( actionsForClip !== undefined ) { + + return actionsForClip.actionByRoot[ rootUuid ] || null; + + } + + return null; + + } + + // deactivates all previously scheduled actions + stopAllAction() { + + const actions = this._actions, + nActions = this._nActiveActions; + + for ( let i = nActions - 1; i >= 0; -- i ) { + + actions[ i ].stop(); + + } + + return this; + + } + + // advance the time and update apply the animation + update( deltaTime ) { + + deltaTime *= this.timeScale; + + const actions = this._actions, + nActions = this._nActiveActions, + + time = this.time += deltaTime, + timeDirection = Math.sign( deltaTime ), + + accuIndex = this._accuIndex ^= 1; + + // run active actions + + for ( let i = 0; i !== nActions; ++ i ) { + + const action = actions[ i ]; + + action._update( time, deltaTime, timeDirection, accuIndex ); + + } + + // update scene graph + + const bindings = this._bindings, + nBindings = this._nActiveBindings; + + for ( let i = 0; i !== nBindings; ++ i ) { + + bindings[ i ].apply( accuIndex ); + + } + + return this; + + } + + // Allows you to seek to a specific time in an animation. + setTime( timeInSeconds ) { + + this.time = 0; // Zero out time attribute for AnimationMixer object; + for ( let i = 0; i < this._actions.length; i ++ ) { + + this._actions[ i ].time = 0; // Zero out time attribute for all associated AnimationAction objects. + + } + + return this.update( timeInSeconds ); // Update used to set exact time. Returns "this" AnimationMixer object. + + } + + // return this mixer's root target object + getRoot() { + + return this._root; + + } + + // free all resources specific to a particular clip + uncacheClip( clip ) { + + const actions = this._actions, + clipUuid = clip.uuid, + actionsByClip = this._actionsByClip, + actionsForClip = actionsByClip[ clipUuid ]; + + if ( actionsForClip !== undefined ) { + + // note: just calling _removeInactiveAction would mess up the + // iteration state and also require updating the state we can + // just throw away + + const actionsToRemove = actionsForClip.knownActions; + + for ( let i = 0, n = actionsToRemove.length; i !== n; ++ i ) { + + const action = actionsToRemove[ i ]; + + this._deactivateAction( action ); + + const cacheIndex = action._cacheIndex, + lastInactiveAction = actions[ actions.length - 1 ]; + + action._cacheIndex = null; + action._byClipCacheIndex = null; + + lastInactiveAction._cacheIndex = cacheIndex; + actions[ cacheIndex ] = lastInactiveAction; + actions.pop(); + + this._removeInactiveBindingsForAction( action ); + + } + + delete actionsByClip[ clipUuid ]; + + } + + } + + // free all resources specific to a particular root target object + uncacheRoot( root ) { + + const rootUuid = root.uuid, + actionsByClip = this._actionsByClip; + + for ( const clipUuid in actionsByClip ) { + + const actionByRoot = actionsByClip[ clipUuid ].actionByRoot, + action = actionByRoot[ rootUuid ]; + + if ( action !== undefined ) { + + this._deactivateAction( action ); + this._removeInactiveAction( action ); + + } + + } + + const bindingsByRoot = this._bindingsByRootAndName, + bindingByName = bindingsByRoot[ rootUuid ]; + + if ( bindingByName !== undefined ) { + + for ( const trackName in bindingByName ) { + + const binding = bindingByName[ trackName ]; + binding.restoreOriginalState(); + this._removeInactiveBinding( binding ); + + } + + } + + } + + // remove a targeted clip from the cache + uncacheAction( clip, optionalRoot ) { + + const action = this.existingAction( clip, optionalRoot ); + + if ( action !== null ) { + + this._deactivateAction( action ); + this._removeInactiveAction( action ); + + } + + } + +} + +AnimationMixer.prototype._controlInterpolantsResultBuffer = new Float32Array( 1 ); + +class Uniform { + + constructor( value ) { + + if ( typeof value === 'string' ) { + + console.warn( 'THREE.Uniform: Type parameter is no longer needed.' ); + value = arguments[ 1 ]; + + } + + this.value = value; + + } + + clone() { + + return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() ); + + } + +} + +class InstancedInterleavedBuffer extends InterleavedBuffer { + + constructor( array, stride, meshPerAttribute = 1 ) { + + super( array, stride ); + + this.meshPerAttribute = meshPerAttribute; + + } + + copy( source ) { + + super.copy( source ); + + this.meshPerAttribute = source.meshPerAttribute; + + return this; + + } + + clone( data ) { + + const ib = super.clone( data ); + + ib.meshPerAttribute = this.meshPerAttribute; + + return ib; + + } + + toJSON( data ) { + + const json = super.toJSON( data ); + + json.isInstancedInterleavedBuffer = true; + json.meshPerAttribute = this.meshPerAttribute; + + return json; + + } + +} + +InstancedInterleavedBuffer.prototype.isInstancedInterleavedBuffer = true; + +class GLBufferAttribute { + + constructor( buffer, type, itemSize, elementSize, count ) { + + this.buffer = buffer; + this.type = type; + this.itemSize = itemSize; + this.elementSize = elementSize; + this.count = count; + + this.version = 0; + + } + + set needsUpdate( value ) { + + if ( value === true ) this.version ++; + + } + + setBuffer( buffer ) { + + this.buffer = buffer; + + return this; + + } + + setType( type, elementSize ) { + + this.type = type; + this.elementSize = elementSize; + + return this; + + } + + setItemSize( itemSize ) { + + this.itemSize = itemSize; + + return this; + + } + + setCount( count ) { + + this.count = count; + + return this; + + } + +} + +GLBufferAttribute.prototype.isGLBufferAttribute = true; + +class Raycaster { + + constructor( origin, direction, near = 0, far = Infinity ) { + + this.ray = new Ray( origin, direction ); + // direction is assumed to be normalized (for accurate distance calculations) + + this.near = near; + this.far = far; + this.camera = null; + this.layers = new Layers(); + + this.params = { + Mesh: {}, + Line: { threshold: 1 }, + LOD: {}, + Points: { threshold: 1 }, + Sprite: {} + }; + + } + + set( origin, direction ) { + + // direction is assumed to be normalized (for accurate distance calculations) + + this.ray.set( origin, direction ); + + } + + setFromCamera( coords, camera ) { + + if ( camera && camera.isPerspectiveCamera ) { + + this.ray.origin.setFromMatrixPosition( camera.matrixWorld ); + this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize(); + this.camera = camera; + + } else if ( camera && camera.isOrthographicCamera ) { + + this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera + this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld ); + this.camera = camera; + + } else { + + console.error( 'THREE.Raycaster: Unsupported camera type: ' + camera.type ); + + } + + } + + intersectObject( object, recursive = true, intersects = [] ) { + + intersectObject( object, this, intersects, recursive ); + + intersects.sort( ascSort ); + + return intersects; + + } + + intersectObjects( objects, recursive = true, intersects = [] ) { + + for ( let i = 0, l = objects.length; i < l; i ++ ) { + + intersectObject( objects[ i ], this, intersects, recursive ); + + } + + intersects.sort( ascSort ); + + return intersects; + + } + +} + +function ascSort( a, b ) { + + return a.distance - b.distance; + +} + +function intersectObject( object, raycaster, intersects, recursive ) { + + if ( object.layers.test( raycaster.layers ) ) { + + object.raycast( raycaster, intersects ); + + } + + if ( recursive === true ) { + + const children = object.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + intersectObject( children[ i ], raycaster, intersects, true ); + + } + + } + +} + +/** + * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system + * + * The polar angle (phi) is measured from the positive y-axis. The positive y-axis is up. + * The azimuthal angle (theta) is measured from the positive z-axis. + */ + +class Spherical { + + constructor( radius = 1, phi = 0, theta = 0 ) { + + this.radius = radius; + this.phi = phi; // polar angle + this.theta = theta; // azimuthal angle + + return this; + + } + + set( radius, phi, theta ) { + + this.radius = radius; + this.phi = phi; + this.theta = theta; + + return this; + + } + + copy( other ) { + + this.radius = other.radius; + this.phi = other.phi; + this.theta = other.theta; + + return this; + + } + + // restrict phi to be betwee EPS and PI-EPS + makeSafe() { + + const EPS = 0.000001; + this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) ); + + return this; + + } + + setFromVector3( v ) { + + return this.setFromCartesianCoords( v.x, v.y, v.z ); + + } + + setFromCartesianCoords( x, y, z ) { + + this.radius = Math.sqrt( x * x + y * y + z * z ); + + if ( this.radius === 0 ) { + + this.theta = 0; + this.phi = 0; + + } else { + + this.theta = Math.atan2( x, z ); + this.phi = Math.acos( clamp( y / this.radius, - 1, 1 ) ); + + } + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + +} + +/** + * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system + */ + +class Cylindrical { + + constructor( radius = 1, theta = 0, y = 0 ) { + + this.radius = radius; // distance from the origin to a point in the x-z plane + this.theta = theta; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis + this.y = y; // height above the x-z plane + + return this; + + } + + set( radius, theta, y ) { + + this.radius = radius; + this.theta = theta; + this.y = y; + + return this; + + } + + copy( other ) { + + this.radius = other.radius; + this.theta = other.theta; + this.y = other.y; + + return this; + + } + + setFromVector3( v ) { + + return this.setFromCartesianCoords( v.x, v.y, v.z ); + + } + + setFromCartesianCoords( x, y, z ) { + + this.radius = Math.sqrt( x * x + z * z ); + this.theta = Math.atan2( x, z ); + this.y = y; + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + +} + +const _vector$4 = /*@__PURE__*/ new Vector2(); + +class Box2 { + + constructor( min = new Vector2( + Infinity, + Infinity ), max = new Vector2( - Infinity, - Infinity ) ) { + + this.min = min; + this.max = max; + + } + + set( min, max ) { + + this.min.copy( min ); + this.max.copy( max ); + + return this; + + } + + setFromPoints( points ) { + + this.makeEmpty(); + + for ( let i = 0, il = points.length; i < il; i ++ ) { + + this.expandByPoint( points[ i ] ); + + } + + return this; + + } + + setFromCenterAndSize( center, size ) { + + const halfSize = _vector$4.copy( size ).multiplyScalar( 0.5 ); + this.min.copy( center ).sub( halfSize ); + this.max.copy( center ).add( halfSize ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( box ) { + + this.min.copy( box.min ); + this.max.copy( box.max ); + + return this; + + } + + makeEmpty() { + + this.min.x = this.min.y = + Infinity; + this.max.x = this.max.y = - Infinity; + + return this; + + } + + isEmpty() { + + // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes + + return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ); + + } + + getCenter( target ) { + + return this.isEmpty() ? target.set( 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 ); + + } + + getSize( target ) { + + return this.isEmpty() ? target.set( 0, 0 ) : target.subVectors( this.max, this.min ); + + } + + expandByPoint( point ) { + + this.min.min( point ); + this.max.max( point ); + + return this; + + } + + expandByVector( vector ) { + + this.min.sub( vector ); + this.max.add( vector ); + + return this; + + } + + expandByScalar( scalar ) { + + this.min.addScalar( - scalar ); + this.max.addScalar( scalar ); + + return this; + + } + + containsPoint( point ) { + + return point.x < this.min.x || point.x > this.max.x || + point.y < this.min.y || point.y > this.max.y ? false : true; + + } + + containsBox( box ) { + + return this.min.x <= box.min.x && box.max.x <= this.max.x && + this.min.y <= box.min.y && box.max.y <= this.max.y; + + } + + getParameter( point, target ) { + + // This can potentially have a divide by zero if the box + // has a size dimension of 0. + + return target.set( + ( point.x - this.min.x ) / ( this.max.x - this.min.x ), + ( point.y - this.min.y ) / ( this.max.y - this.min.y ) + ); + + } + + intersectsBox( box ) { + + // using 4 splitting planes to rule out intersections + + return box.max.x < this.min.x || box.min.x > this.max.x || + box.max.y < this.min.y || box.min.y > this.max.y ? false : true; + + } + + clampPoint( point, target ) { + + return target.copy( point ).clamp( this.min, this.max ); + + } + + distanceToPoint( point ) { + + const clampedPoint = _vector$4.copy( point ).clamp( this.min, this.max ); + return clampedPoint.sub( point ).length(); + + } + + intersect( box ) { + + this.min.max( box.min ); + this.max.min( box.max ); + + return this; + + } + + union( box ) { + + this.min.min( box.min ); + this.max.max( box.max ); + + return this; + + } + + translate( offset ) { + + this.min.add( offset ); + this.max.add( offset ); + + return this; + + } + + equals( box ) { + + return box.min.equals( this.min ) && box.max.equals( this.max ); + + } + +} + +Box2.prototype.isBox2 = true; + +const _startP = /*@__PURE__*/ new Vector3(); +const _startEnd = /*@__PURE__*/ new Vector3(); + +class Line3 { + + constructor( start = new Vector3(), end = new Vector3() ) { + + this.start = start; + this.end = end; + + } + + set( start, end ) { + + this.start.copy( start ); + this.end.copy( end ); + + return this; + + } + + copy( line ) { + + this.start.copy( line.start ); + this.end.copy( line.end ); + + return this; + + } + + getCenter( target ) { + + return target.addVectors( this.start, this.end ).multiplyScalar( 0.5 ); + + } + + delta( target ) { + + return target.subVectors( this.end, this.start ); + + } + + distanceSq() { + + return this.start.distanceToSquared( this.end ); + + } + + distance() { + + return this.start.distanceTo( this.end ); + + } + + at( t, target ) { + + return this.delta( target ).multiplyScalar( t ).add( this.start ); + + } + + closestPointToPointParameter( point, clampToLine ) { + + _startP.subVectors( point, this.start ); + _startEnd.subVectors( this.end, this.start ); + + const startEnd2 = _startEnd.dot( _startEnd ); + const startEnd_startP = _startEnd.dot( _startP ); + + let t = startEnd_startP / startEnd2; + + if ( clampToLine ) { + + t = clamp( t, 0, 1 ); + + } + + return t; + + } + + closestPointToPoint( point, clampToLine, target ) { + + const t = this.closestPointToPointParameter( point, clampToLine ); + + return this.delta( target ).multiplyScalar( t ).add( this.start ); + + } + + applyMatrix4( matrix ) { + + this.start.applyMatrix4( matrix ); + this.end.applyMatrix4( matrix ); + + return this; + + } + + equals( line ) { + + return line.start.equals( this.start ) && line.end.equals( this.end ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + +} + +const _vector$3 = /*@__PURE__*/ new Vector3(); + +class SpotLightHelper extends Object3D { + + constructor( light, color ) { + + super(); + this.light = light; + this.light.updateMatrixWorld(); + + this.matrix = light.matrixWorld; + this.matrixAutoUpdate = false; + + this.color = color; + + const geometry = new BufferGeometry(); + + const positions = [ + 0, 0, 0, 0, 0, 1, + 0, 0, 0, 1, 0, 1, + 0, 0, 0, - 1, 0, 1, + 0, 0, 0, 0, 1, 1, + 0, 0, 0, 0, - 1, 1 + ]; + + for ( let i = 0, j = 1, l = 32; i < l; i ++, j ++ ) { + + const p1 = ( i / l ) * Math.PI * 2; + const p2 = ( j / l ) * Math.PI * 2; + + positions.push( + Math.cos( p1 ), Math.sin( p1 ), 1, + Math.cos( p2 ), Math.sin( p2 ), 1 + ); + + } + + geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) ); + + const material = new LineBasicMaterial( { fog: false, toneMapped: false } ); + + this.cone = new LineSegments( geometry, material ); + this.add( this.cone ); + + this.update(); + + } + + dispose() { + + this.cone.geometry.dispose(); + this.cone.material.dispose(); + + } + + update() { + + this.light.updateMatrixWorld(); + + const coneLength = this.light.distance ? this.light.distance : 1000; + const coneWidth = coneLength * Math.tan( this.light.angle ); + + this.cone.scale.set( coneWidth, coneWidth, coneLength ); + + _vector$3.setFromMatrixPosition( this.light.target.matrixWorld ); + + this.cone.lookAt( _vector$3 ); + + if ( this.color !== undefined ) { + + this.cone.material.color.set( this.color ); + + } else { + + this.cone.material.color.copy( this.light.color ); + + } + + } + +} + +const _vector$2 = /*@__PURE__*/ new Vector3(); +const _boneMatrix = /*@__PURE__*/ new Matrix4(); +const _matrixWorldInv = /*@__PURE__*/ new Matrix4(); + + +class SkeletonHelper extends LineSegments { + + constructor( object ) { + + const bones = getBoneList( object ); + + const geometry = new BufferGeometry(); + + const vertices = []; + const colors = []; + + const color1 = new Color( 0, 0, 1 ); + const color2 = new Color( 0, 1, 0 ); + + for ( let i = 0; i < bones.length; i ++ ) { + + const bone = bones[ i ]; + + if ( bone.parent && bone.parent.isBone ) { + + vertices.push( 0, 0, 0 ); + vertices.push( 0, 0, 0 ); + colors.push( color1.r, color1.g, color1.b ); + colors.push( color2.r, color2.g, color2.b ); + + } + + } + + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + const material = new LineBasicMaterial( { vertexColors: true, depthTest: false, depthWrite: false, toneMapped: false, transparent: true } ); + + super( geometry, material ); + + this.type = 'SkeletonHelper'; + this.isSkeletonHelper = true; + + this.root = object; + this.bones = bones; + + this.matrix = object.matrixWorld; + this.matrixAutoUpdate = false; + + } + + updateMatrixWorld( force ) { + + const bones = this.bones; + + const geometry = this.geometry; + const position = geometry.getAttribute( 'position' ); + + _matrixWorldInv.copy( this.root.matrixWorld ).invert(); + + for ( let i = 0, j = 0; i < bones.length; i ++ ) { + + const bone = bones[ i ]; + + if ( bone.parent && bone.parent.isBone ) { + + _boneMatrix.multiplyMatrices( _matrixWorldInv, bone.matrixWorld ); + _vector$2.setFromMatrixPosition( _boneMatrix ); + position.setXYZ( j, _vector$2.x, _vector$2.y, _vector$2.z ); + + _boneMatrix.multiplyMatrices( _matrixWorldInv, bone.parent.matrixWorld ); + _vector$2.setFromMatrixPosition( _boneMatrix ); + position.setXYZ( j + 1, _vector$2.x, _vector$2.y, _vector$2.z ); + + j += 2; + + } + + } + + geometry.getAttribute( 'position' ).needsUpdate = true; + + super.updateMatrixWorld( force ); + + } + +} + + +function getBoneList( object ) { + + const boneList = []; + + if ( object && object.isBone ) { + + boneList.push( object ); + + } + + for ( let i = 0; i < object.children.length; i ++ ) { + + boneList.push.apply( boneList, getBoneList( object.children[ i ] ) ); + + } + + return boneList; + +} + +class PointLightHelper extends Mesh { + + constructor( light, sphereSize, color ) { + + const geometry = new SphereGeometry( sphereSize, 4, 2 ); + const material = new MeshBasicMaterial( { wireframe: true, fog: false, toneMapped: false } ); + + super( geometry, material ); + + this.light = light; + this.light.updateMatrixWorld(); + + this.color = color; + + this.type = 'PointLightHelper'; + + this.matrix = this.light.matrixWorld; + this.matrixAutoUpdate = false; + + this.update(); + + + /* + // TODO: delete this comment? + const distanceGeometry = new THREE.IcosahedronBufferGeometry( 1, 2 ); + const distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } ); + + this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial ); + this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial ); + + const d = light.distance; + + if ( d === 0.0 ) { + + this.lightDistance.visible = false; + + } else { + + this.lightDistance.scale.set( d, d, d ); + + } + + this.add( this.lightDistance ); + */ + + } + + dispose() { + + this.geometry.dispose(); + this.material.dispose(); + + } + + update() { + + if ( this.color !== undefined ) { + + this.material.color.set( this.color ); + + } else { + + this.material.color.copy( this.light.color ); + + } + + /* + const d = this.light.distance; + + if ( d === 0.0 ) { + + this.lightDistance.visible = false; + + } else { + + this.lightDistance.visible = true; + this.lightDistance.scale.set( d, d, d ); + + } + */ + + } + +} + +const _vector$1 = /*@__PURE__*/ new Vector3(); +const _color1 = /*@__PURE__*/ new Color(); +const _color2 = /*@__PURE__*/ new Color(); + +class HemisphereLightHelper extends Object3D { + + constructor( light, size, color ) { + + super(); + this.light = light; + this.light.updateMatrixWorld(); + + this.matrix = light.matrixWorld; + this.matrixAutoUpdate = false; + + this.color = color; + + const geometry = new OctahedronGeometry( size ); + geometry.rotateY( Math.PI * 0.5 ); + + this.material = new MeshBasicMaterial( { wireframe: true, fog: false, toneMapped: false } ); + if ( this.color === undefined ) this.material.vertexColors = true; + + const position = geometry.getAttribute( 'position' ); + const colors = new Float32Array( position.count * 3 ); + + geometry.setAttribute( 'color', new BufferAttribute( colors, 3 ) ); + + this.add( new Mesh( geometry, this.material ) ); + + this.update(); + + } + + dispose() { + + this.children[ 0 ].geometry.dispose(); + this.children[ 0 ].material.dispose(); + + } + + update() { + + const mesh = this.children[ 0 ]; + + if ( this.color !== undefined ) { + + this.material.color.set( this.color ); + + } else { + + const colors = mesh.geometry.getAttribute( 'color' ); + + _color1.copy( this.light.color ); + _color2.copy( this.light.groundColor ); + + for ( let i = 0, l = colors.count; i < l; i ++ ) { + + const color = ( i < ( l / 2 ) ) ? _color1 : _color2; + + colors.setXYZ( i, color.r, color.g, color.b ); + + } + + colors.needsUpdate = true; + + } + + mesh.lookAt( _vector$1.setFromMatrixPosition( this.light.matrixWorld ).negate() ); + + } + +} + +class GridHelper extends LineSegments { + + constructor( size = 10, divisions = 10, color1 = 0x444444, color2 = 0x888888 ) { + + color1 = new Color( color1 ); + color2 = new Color( color2 ); + + const center = divisions / 2; + const step = size / divisions; + const halfSize = size / 2; + + const vertices = [], colors = []; + + for ( let i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) { + + vertices.push( - halfSize, 0, k, halfSize, 0, k ); + vertices.push( k, 0, - halfSize, k, 0, halfSize ); + + const color = i === center ? color1 : color2; + + color.toArray( colors, j ); j += 3; + color.toArray( colors, j ); j += 3; + color.toArray( colors, j ); j += 3; + color.toArray( colors, j ); j += 3; + + } + + const geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } ); + + super( geometry, material ); + + this.type = 'GridHelper'; + + } + +} + +class PolarGridHelper extends LineSegments { + + constructor( radius = 10, radials = 16, circles = 8, divisions = 64, color1 = 0x444444, color2 = 0x888888 ) { + + color1 = new Color( color1 ); + color2 = new Color( color2 ); + + const vertices = []; + const colors = []; + + // create the radials + + for ( let i = 0; i <= radials; i ++ ) { + + const v = ( i / radials ) * ( Math.PI * 2 ); + + const x = Math.sin( v ) * radius; + const z = Math.cos( v ) * radius; + + vertices.push( 0, 0, 0 ); + vertices.push( x, 0, z ); + + const color = ( i & 1 ) ? color1 : color2; + + colors.push( color.r, color.g, color.b ); + colors.push( color.r, color.g, color.b ); + + } + + // create the circles + + for ( let i = 0; i <= circles; i ++ ) { + + const color = ( i & 1 ) ? color1 : color2; + + const r = radius - ( radius / circles * i ); + + for ( let j = 0; j < divisions; j ++ ) { + + // first vertex + + let v = ( j / divisions ) * ( Math.PI * 2 ); + + let x = Math.sin( v ) * r; + let z = Math.cos( v ) * r; + + vertices.push( x, 0, z ); + colors.push( color.r, color.g, color.b ); + + // second vertex + + v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 ); + + x = Math.sin( v ) * r; + z = Math.cos( v ) * r; + + vertices.push( x, 0, z ); + colors.push( color.r, color.g, color.b ); + + } + + } + + const geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } ); + + super( geometry, material ); + + this.type = 'PolarGridHelper'; + + } + +} + +const _v1 = /*@__PURE__*/ new Vector3(); +const _v2 = /*@__PURE__*/ new Vector3(); +const _v3 = /*@__PURE__*/ new Vector3(); + +class DirectionalLightHelper extends Object3D { + + constructor( light, size, color ) { + + super(); + this.light = light; + this.light.updateMatrixWorld(); + + this.matrix = light.matrixWorld; + this.matrixAutoUpdate = false; + + this.color = color; + + if ( size === undefined ) size = 1; + + let geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( [ + - size, size, 0, + size, size, 0, + size, - size, 0, + - size, - size, 0, + - size, size, 0 + ], 3 ) ); + + const material = new LineBasicMaterial( { fog: false, toneMapped: false } ); + + this.lightPlane = new Line( geometry, material ); + this.add( this.lightPlane ); + + geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) ); + + this.targetLine = new Line( geometry, material ); + this.add( this.targetLine ); + + this.update(); + + } + + dispose() { + + this.lightPlane.geometry.dispose(); + this.lightPlane.material.dispose(); + this.targetLine.geometry.dispose(); + this.targetLine.material.dispose(); + + } + + update() { + + _v1.setFromMatrixPosition( this.light.matrixWorld ); + _v2.setFromMatrixPosition( this.light.target.matrixWorld ); + _v3.subVectors( _v2, _v1 ); + + this.lightPlane.lookAt( _v2 ); + + if ( this.color !== undefined ) { + + this.lightPlane.material.color.set( this.color ); + this.targetLine.material.color.set( this.color ); + + } else { + + this.lightPlane.material.color.copy( this.light.color ); + this.targetLine.material.color.copy( this.light.color ); + + } + + this.targetLine.lookAt( _v2 ); + this.targetLine.scale.z = _v3.length(); + + } + +} + +const _vector = /*@__PURE__*/ new Vector3(); +const _camera = /*@__PURE__*/ new Camera(); + +/** + * - shows frustum, line of sight and up of the camera + * - suitable for fast updates + * - based on frustum visualization in lightgl.js shadowmap example + * http://evanw.github.com/lightgl.js/tests/shadowmap.html + */ + +class CameraHelper extends LineSegments { + + constructor( camera ) { + + const geometry = new BufferGeometry(); + const material = new LineBasicMaterial( { color: 0xffffff, vertexColors: true, toneMapped: false } ); + + const vertices = []; + const colors = []; + + const pointMap = {}; + + // colors + + const colorFrustum = new Color( 0xffaa00 ); + const colorCone = new Color( 0xff0000 ); + const colorUp = new Color( 0x00aaff ); + const colorTarget = new Color( 0xffffff ); + const colorCross = new Color( 0x333333 ); + + // near + + addLine( 'n1', 'n2', colorFrustum ); + addLine( 'n2', 'n4', colorFrustum ); + addLine( 'n4', 'n3', colorFrustum ); + addLine( 'n3', 'n1', colorFrustum ); + + // far + + addLine( 'f1', 'f2', colorFrustum ); + addLine( 'f2', 'f4', colorFrustum ); + addLine( 'f4', 'f3', colorFrustum ); + addLine( 'f3', 'f1', colorFrustum ); + + // sides + + addLine( 'n1', 'f1', colorFrustum ); + addLine( 'n2', 'f2', colorFrustum ); + addLine( 'n3', 'f3', colorFrustum ); + addLine( 'n4', 'f4', colorFrustum ); + + // cone + + addLine( 'p', 'n1', colorCone ); + addLine( 'p', 'n2', colorCone ); + addLine( 'p', 'n3', colorCone ); + addLine( 'p', 'n4', colorCone ); + + // up + + addLine( 'u1', 'u2', colorUp ); + addLine( 'u2', 'u3', colorUp ); + addLine( 'u3', 'u1', colorUp ); + + // target + + addLine( 'c', 't', colorTarget ); + addLine( 'p', 'c', colorCross ); + + // cross + + addLine( 'cn1', 'cn2', colorCross ); + addLine( 'cn3', 'cn4', colorCross ); + + addLine( 'cf1', 'cf2', colorCross ); + addLine( 'cf3', 'cf4', colorCross ); + + function addLine( a, b, color ) { + + addPoint( a, color ); + addPoint( b, color ); + + } + + function addPoint( id, color ) { + + vertices.push( 0, 0, 0 ); + colors.push( color.r, color.g, color.b ); + + if ( pointMap[ id ] === undefined ) { + + pointMap[ id ] = []; + + } + + pointMap[ id ].push( ( vertices.length / 3 ) - 1 ); + + } + + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + super( geometry, material ); + + this.type = 'CameraHelper'; + + this.camera = camera; + if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix(); + + this.matrix = camera.matrixWorld; + this.matrixAutoUpdate = false; + + this.pointMap = pointMap; + + this.update(); + + } + + update() { + + const geometry = this.geometry; + const pointMap = this.pointMap; + + const w = 1, h = 1; + + // we need just camera projection matrix inverse + // world matrix must be identity + + _camera.projectionMatrixInverse.copy( this.camera.projectionMatrixInverse ); + + // center / target + + setPoint( 'c', pointMap, geometry, _camera, 0, 0, - 1 ); + setPoint( 't', pointMap, geometry, _camera, 0, 0, 1 ); + + // near + + setPoint( 'n1', pointMap, geometry, _camera, - w, - h, - 1 ); + setPoint( 'n2', pointMap, geometry, _camera, w, - h, - 1 ); + setPoint( 'n3', pointMap, geometry, _camera, - w, h, - 1 ); + setPoint( 'n4', pointMap, geometry, _camera, w, h, - 1 ); + + // far + + setPoint( 'f1', pointMap, geometry, _camera, - w, - h, 1 ); + setPoint( 'f2', pointMap, geometry, _camera, w, - h, 1 ); + setPoint( 'f3', pointMap, geometry, _camera, - w, h, 1 ); + setPoint( 'f4', pointMap, geometry, _camera, w, h, 1 ); + + // up + + setPoint( 'u1', pointMap, geometry, _camera, w * 0.7, h * 1.1, - 1 ); + setPoint( 'u2', pointMap, geometry, _camera, - w * 0.7, h * 1.1, - 1 ); + setPoint( 'u3', pointMap, geometry, _camera, 0, h * 2, - 1 ); + + // cross + + setPoint( 'cf1', pointMap, geometry, _camera, - w, 0, 1 ); + setPoint( 'cf2', pointMap, geometry, _camera, w, 0, 1 ); + setPoint( 'cf3', pointMap, geometry, _camera, 0, - h, 1 ); + setPoint( 'cf4', pointMap, geometry, _camera, 0, h, 1 ); + + setPoint( 'cn1', pointMap, geometry, _camera, - w, 0, - 1 ); + setPoint( 'cn2', pointMap, geometry, _camera, w, 0, - 1 ); + setPoint( 'cn3', pointMap, geometry, _camera, 0, - h, - 1 ); + setPoint( 'cn4', pointMap, geometry, _camera, 0, h, - 1 ); + + geometry.getAttribute( 'position' ).needsUpdate = true; + + } + + dispose() { + + this.geometry.dispose(); + this.material.dispose(); + + } + +} + + +function setPoint( point, pointMap, geometry, camera, x, y, z ) { + + _vector.set( x, y, z ).unproject( camera ); + + const points = pointMap[ point ]; + + if ( points !== undefined ) { + + const position = geometry.getAttribute( 'position' ); + + for ( let i = 0, l = points.length; i < l; i ++ ) { + + position.setXYZ( points[ i ], _vector.x, _vector.y, _vector.z ); + + } + + } + +} + +const _box = /*@__PURE__*/ new Box3(); + +class BoxHelper extends LineSegments { + + constructor( object, color = 0xffff00 ) { + + const indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] ); + const positions = new Float32Array( 8 * 3 ); + + const geometry = new BufferGeometry(); + geometry.setIndex( new BufferAttribute( indices, 1 ) ); + geometry.setAttribute( 'position', new BufferAttribute( positions, 3 ) ); + + super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) ); + + this.object = object; + this.type = 'BoxHelper'; + + this.matrixAutoUpdate = false; + + this.update(); + + } + + update( object ) { + + if ( object !== undefined ) { + + console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' ); + + } + + if ( this.object !== undefined ) { + + _box.setFromObject( this.object ); + + } + + if ( _box.isEmpty() ) return; + + const min = _box.min; + const max = _box.max; + + /* + 5____4 + 1/___0/| + | 6__|_7 + 2/___3/ + + 0: max.x, max.y, max.z + 1: min.x, max.y, max.z + 2: min.x, min.y, max.z + 3: max.x, min.y, max.z + 4: max.x, max.y, min.z + 5: min.x, max.y, min.z + 6: min.x, min.y, min.z + 7: max.x, min.y, min.z + */ + + const position = this.geometry.attributes.position; + const array = position.array; + + array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z; + array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z; + array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z; + array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z; + array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z; + array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z; + array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z; + array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z; + + position.needsUpdate = true; + + this.geometry.computeBoundingSphere(); + + + } + + setFromObject( object ) { + + this.object = object; + this.update(); + + return this; + + } + + copy( source ) { + + LineSegments.prototype.copy.call( this, source ); + + this.object = source.object; + + return this; + + } + +} + +class Box3Helper extends LineSegments { + + constructor( box, color = 0xffff00 ) { + + const indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] ); + + const positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ]; + + const geometry = new BufferGeometry(); + + geometry.setIndex( new BufferAttribute( indices, 1 ) ); + + geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) ); + + super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) ); + + this.box = box; + + this.type = 'Box3Helper'; + + this.geometry.computeBoundingSphere(); + + } + + updateMatrixWorld( force ) { + + const box = this.box; + + if ( box.isEmpty() ) return; + + box.getCenter( this.position ); + + box.getSize( this.scale ); + + this.scale.multiplyScalar( 0.5 ); + + super.updateMatrixWorld( force ); + + } + +} + +class PlaneHelper extends Line { + + constructor( plane, size = 1, hex = 0xffff00 ) { + + const color = hex; + + const positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ]; + + const geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) ); + geometry.computeBoundingSphere(); + + super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) ); + + this.type = 'PlaneHelper'; + + this.plane = plane; + + this.size = size; + + const positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ]; + + const geometry2 = new BufferGeometry(); + geometry2.setAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) ); + geometry2.computeBoundingSphere(); + + this.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false, toneMapped: false } ) ) ); + + } + + updateMatrixWorld( force ) { + + let scale = - this.plane.constant; + + if ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter + + this.scale.set( 0.5 * this.size, 0.5 * this.size, scale ); + + this.children[ 0 ].material.side = ( scale < 0 ) ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here + + this.lookAt( this.plane.normal ); + + super.updateMatrixWorld( force ); + + } + +} + +const _axis = /*@__PURE__*/ new Vector3(); +let _lineGeometry, _coneGeometry; + +class ArrowHelper extends Object3D { + + // dir is assumed to be normalized + + constructor( dir = new Vector3( 0, 0, 1 ), origin = new Vector3( 0, 0, 0 ), length = 1, color = 0xffff00, headLength = length * 0.2, headWidth = headLength * 0.2 ) { + + super(); + + this.type = 'ArrowHelper'; + + if ( _lineGeometry === undefined ) { + + _lineGeometry = new BufferGeometry(); + _lineGeometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) ); + + _coneGeometry = new CylinderGeometry( 0, 0.5, 1, 5, 1 ); + _coneGeometry.translate( 0, - 0.5, 0 ); + + } + + this.position.copy( origin ); + + this.line = new Line( _lineGeometry, new LineBasicMaterial( { color: color, toneMapped: false } ) ); + this.line.matrixAutoUpdate = false; + this.add( this.line ); + + this.cone = new Mesh( _coneGeometry, new MeshBasicMaterial( { color: color, toneMapped: false } ) ); + this.cone.matrixAutoUpdate = false; + this.add( this.cone ); + + this.setDirection( dir ); + this.setLength( length, headLength, headWidth ); + + } + + setDirection( dir ) { + + // dir is assumed to be normalized + + if ( dir.y > 0.99999 ) { + + this.quaternion.set( 0, 0, 0, 1 ); + + } else if ( dir.y < - 0.99999 ) { + + this.quaternion.set( 1, 0, 0, 0 ); + + } else { + + _axis.set( dir.z, 0, - dir.x ).normalize(); + + const radians = Math.acos( dir.y ); + + this.quaternion.setFromAxisAngle( _axis, radians ); + + } + + } + + setLength( length, headLength = length * 0.2, headWidth = headLength * 0.2 ) { + + this.line.scale.set( 1, Math.max( 0.0001, length - headLength ), 1 ); // see #17458 + this.line.updateMatrix(); + + this.cone.scale.set( headWidth, headLength, headWidth ); + this.cone.position.y = length; + this.cone.updateMatrix(); + + } + + setColor( color ) { + + this.line.material.color.set( color ); + this.cone.material.color.set( color ); + + } + + copy( source ) { + + super.copy( source, false ); + + this.line.copy( source.line ); + this.cone.copy( source.cone ); + + return this; + + } + +} + +class AxesHelper extends LineSegments { + + constructor( size = 1 ) { + + const vertices = [ + 0, 0, 0, size, 0, 0, + 0, 0, 0, 0, size, 0, + 0, 0, 0, 0, 0, size + ]; + + const colors = [ + 1, 0, 0, 1, 0.6, 0, + 0, 1, 0, 0.6, 1, 0, + 0, 0, 1, 0, 0.6, 1 + ]; + + const geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } ); + + super( geometry, material ); + + this.type = 'AxesHelper'; + + } + + setColors( xAxisColor, yAxisColor, zAxisColor ) { + + const color = new Color(); + const array = this.geometry.attributes.color.array; + + color.set( xAxisColor ); + color.toArray( array, 0 ); + color.toArray( array, 3 ); + + color.set( yAxisColor ); + color.toArray( array, 6 ); + color.toArray( array, 9 ); + + color.set( zAxisColor ); + color.toArray( array, 12 ); + color.toArray( array, 15 ); + + this.geometry.attributes.color.needsUpdate = true; + + return this; + + } + + dispose() { + + this.geometry.dispose(); + this.material.dispose(); + + } + +} + +class ShapePath { + + constructor() { + + this.type = 'ShapePath'; + + this.color = new Color(); + + this.subPaths = []; + this.currentPath = null; + + } + + moveTo( x, y ) { + + this.currentPath = new Path(); + this.subPaths.push( this.currentPath ); + this.currentPath.moveTo( x, y ); + + return this; + + } + + lineTo( x, y ) { + + this.currentPath.lineTo( x, y ); + + return this; + + } + + quadraticCurveTo( aCPx, aCPy, aX, aY ) { + + this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY ); + + return this; + + } + + bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) { + + this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ); + + return this; + + } + + splineThru( pts ) { + + this.currentPath.splineThru( pts ); + + return this; + + } + + toShapes( isCCW, noHoles ) { + + function toShapesNoHoles( inSubpaths ) { + + const shapes = []; + + for ( let i = 0, l = inSubpaths.length; i < l; i ++ ) { + + const tmpPath = inSubpaths[ i ]; + + const tmpShape = new Shape(); + tmpShape.curves = tmpPath.curves; + + shapes.push( tmpShape ); + + } + + return shapes; + + } + + function isPointInsidePolygon( inPt, inPolygon ) { + + const polyLen = inPolygon.length; + + // inPt on polygon contour => immediate success or + // toggling of inside/outside at every single! intersection point of an edge + // with the horizontal line through inPt, left of inPt + // not counting lowerY endpoints of edges and whole edges on that line + let inside = false; + for ( let p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) { + + let edgeLowPt = inPolygon[ p ]; + let edgeHighPt = inPolygon[ q ]; + + let edgeDx = edgeHighPt.x - edgeLowPt.x; + let edgeDy = edgeHighPt.y - edgeLowPt.y; + + if ( Math.abs( edgeDy ) > Number.EPSILON ) { + + // not parallel + if ( edgeDy < 0 ) { + + edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx; + edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy; + + } + + if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) continue; + + if ( inPt.y === edgeLowPt.y ) { + + if ( inPt.x === edgeLowPt.x ) return true; // inPt is on contour ? + // continue; // no intersection or edgeLowPt => doesn't count !!! + + } else { + + const perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y ); + if ( perpEdge === 0 ) return true; // inPt is on contour ? + if ( perpEdge < 0 ) continue; + inside = ! inside; // true intersection left of inPt + + } + + } else { + + // parallel or collinear + if ( inPt.y !== edgeLowPt.y ) continue; // parallel + // edge lies on the same horizontal line as inPt + if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) || + ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) ) return true; // inPt: Point on contour ! + // continue; + + } + + } + + return inside; + + } + + const isClockWise = ShapeUtils.isClockWise; + + const subPaths = this.subPaths; + if ( subPaths.length === 0 ) return []; + + if ( noHoles === true ) return toShapesNoHoles( subPaths ); + + + let solid, tmpPath, tmpShape; + const shapes = []; + + if ( subPaths.length === 1 ) { + + tmpPath = subPaths[ 0 ]; + tmpShape = new Shape(); + tmpShape.curves = tmpPath.curves; + shapes.push( tmpShape ); + return shapes; + + } + + let holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() ); + holesFirst = isCCW ? ! holesFirst : holesFirst; + + // console.log("Holes first", holesFirst); + + const betterShapeHoles = []; + const newShapes = []; + let newShapeHoles = []; + let mainIdx = 0; + let tmpPoints; + + newShapes[ mainIdx ] = undefined; + newShapeHoles[ mainIdx ] = []; + + for ( let i = 0, l = subPaths.length; i < l; i ++ ) { + + tmpPath = subPaths[ i ]; + tmpPoints = tmpPath.getPoints(); + solid = isClockWise( tmpPoints ); + solid = isCCW ? ! solid : solid; + + if ( solid ) { + + if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) ) mainIdx ++; + + newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints }; + newShapes[ mainIdx ].s.curves = tmpPath.curves; + + if ( holesFirst ) mainIdx ++; + newShapeHoles[ mainIdx ] = []; + + //console.log('cw', i); + + } else { + + newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } ); + + //console.log('ccw', i); + + } + + } + + // only Holes? -> probably all Shapes with wrong orientation + if ( ! newShapes[ 0 ] ) return toShapesNoHoles( subPaths ); + + + if ( newShapes.length > 1 ) { + + let ambiguous = false; + const toChange = []; + + for ( let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) { + + betterShapeHoles[ sIdx ] = []; + + } + + for ( let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) { + + const sho = newShapeHoles[ sIdx ]; + + for ( let hIdx = 0; hIdx < sho.length; hIdx ++ ) { + + const ho = sho[ hIdx ]; + let hole_unassigned = true; + + for ( let s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) { + + if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) { + + if ( sIdx !== s2Idx ) toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } ); + if ( hole_unassigned ) { + + hole_unassigned = false; + betterShapeHoles[ s2Idx ].push( ho ); + + } else { + + ambiguous = true; + + } + + } + + } + + if ( hole_unassigned ) { + + betterShapeHoles[ sIdx ].push( ho ); + + } + + } + + } + // console.log("ambiguous: ", ambiguous); + + if ( toChange.length > 0 ) { + + // console.log("to change: ", toChange); + if ( ! ambiguous ) newShapeHoles = betterShapeHoles; + + } + + } + + let tmpHoles; + + for ( let i = 0, il = newShapes.length; i < il; i ++ ) { + + tmpShape = newShapes[ i ].s; + shapes.push( tmpShape ); + tmpHoles = newShapeHoles[ i ]; + + for ( let j = 0, jl = tmpHoles.length; j < jl; j ++ ) { + + tmpShape.holes.push( tmpHoles[ j ].h ); + + } + + } + + //console.log("shape", shapes); + + return shapes; + + } + +} + +const _floatView = new Float32Array( 1 ); +const _int32View = new Int32Array( _floatView.buffer ); + +class DataUtils { + + // Converts float32 to float16 (stored as uint16 value). + + static toHalfFloat( val ) { + + if ( val > 65504 ) { + + console.warn( 'THREE.DataUtils.toHalfFloat(): value exceeds 65504.' ); + + val = 65504; // maximum representable value in float16 + + } + + // Source: http://gamedev.stackexchange.com/questions/17326/conversion-of-a-number-from-single-precision-floating-point-representation-to-a/17410#17410 + + /* This method is faster than the OpenEXR implementation (very often + * used, eg. in Ogre), with the additional benefit of rounding, inspired + * by James Tursa?s half-precision code. */ + + _floatView[ 0 ] = val; + const x = _int32View[ 0 ]; + + let bits = ( x >> 16 ) & 0x8000; /* Get the sign */ + let m = ( x >> 12 ) & 0x07ff; /* Keep one extra bit for rounding */ + const e = ( x >> 23 ) & 0xff; /* Using int is faster here */ + + /* If zero, or denormal, or exponent underflows too much for a denormal + * half, return signed zero. */ + if ( e < 103 ) return bits; + + /* If NaN, return NaN. If Inf or exponent overflow, return Inf. */ + if ( e > 142 ) { + + bits |= 0x7c00; + /* If exponent was 0xff and one mantissa bit was set, it means NaN, + * not Inf, so make sure we set one mantissa bit too. */ + bits |= ( ( e == 255 ) ? 0 : 1 ) && ( x & 0x007fffff ); + return bits; + + } + + /* If exponent underflows but not too much, return a denormal */ + if ( e < 113 ) { + + m |= 0x0800; + /* Extra rounding may overflow and set mantissa to 0 and exponent + * to 1, which is OK. */ + bits |= ( m >> ( 114 - e ) ) + ( ( m >> ( 113 - e ) ) & 1 ); + return bits; + + } + + bits |= ( ( e - 112 ) << 10 ) | ( m >> 1 ); + /* Extra rounding. An overflow will set mantissa to 0 and increment + * the exponent, which is OK. */ + bits += m & 1; + return bits; + + } + +} + +const LineStrip = 0; +const LinePieces = 1; +const NoColors = 0; +const FaceColors = 1; +const VertexColors = 2; + +function MeshFaceMaterial( materials ) { + + console.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' ); + return materials; + +} + +function MultiMaterial( materials = [] ) { + + console.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' ); + materials.isMultiMaterial = true; + materials.materials = materials; + materials.clone = function () { + + return materials.slice(); + + }; + + return materials; + +} + +function PointCloud( geometry, material ) { + + console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' ); + return new Points( geometry, material ); + +} + +function Particle( material ) { + + console.warn( 'THREE.Particle has been renamed to THREE.Sprite.' ); + return new Sprite( material ); + +} + +function ParticleSystem( geometry, material ) { + + console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' ); + return new Points( geometry, material ); + +} + +function PointCloudMaterial( parameters ) { + + console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' ); + return new PointsMaterial( parameters ); + +} + +function ParticleBasicMaterial( parameters ) { + + console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' ); + return new PointsMaterial( parameters ); + +} + +function ParticleSystemMaterial( parameters ) { + + console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' ); + return new PointsMaterial( parameters ); + +} + +function Vertex( x, y, z ) { + + console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' ); + return new Vector3( x, y, z ); + +} + +// + +function DynamicBufferAttribute( array, itemSize ) { + + console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead.' ); + return new BufferAttribute( array, itemSize ).setUsage( DynamicDrawUsage ); + +} + +function Int8Attribute( array, itemSize ) { + + console.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' ); + return new Int8BufferAttribute( array, itemSize ); + +} + +function Uint8Attribute( array, itemSize ) { + + console.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' ); + return new Uint8BufferAttribute( array, itemSize ); + +} + +function Uint8ClampedAttribute( array, itemSize ) { + + console.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' ); + return new Uint8ClampedBufferAttribute( array, itemSize ); + +} + +function Int16Attribute( array, itemSize ) { + + console.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' ); + return new Int16BufferAttribute( array, itemSize ); + +} + +function Uint16Attribute( array, itemSize ) { + + console.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' ); + return new Uint16BufferAttribute( array, itemSize ); + +} + +function Int32Attribute( array, itemSize ) { + + console.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' ); + return new Int32BufferAttribute( array, itemSize ); + +} + +function Uint32Attribute( array, itemSize ) { + + console.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' ); + return new Uint32BufferAttribute( array, itemSize ); + +} + +function Float32Attribute( array, itemSize ) { + + console.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' ); + return new Float32BufferAttribute( array, itemSize ); + +} + +function Float64Attribute( array, itemSize ) { + + console.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' ); + return new Float64BufferAttribute( array, itemSize ); + +} + +// + +Curve.create = function ( construct, getPoint ) { + + console.log( 'THREE.Curve.create() has been deprecated' ); + + construct.prototype = Object.create( Curve.prototype ); + construct.prototype.constructor = construct; + construct.prototype.getPoint = getPoint; + + return construct; + +}; + +// + +Path.prototype.fromPoints = function ( points ) { + + console.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' ); + return this.setFromPoints( points ); + +}; + +// + +function AxisHelper( size ) { + + console.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' ); + return new AxesHelper( size ); + +} + +function BoundingBoxHelper( object, color ) { + + console.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' ); + return new BoxHelper( object, color ); + +} + +function EdgesHelper( object, hex ) { + + console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' ); + return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) ); + +} + +GridHelper.prototype.setColors = function () { + + console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' ); + +}; + +SkeletonHelper.prototype.update = function () { + + console.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' ); + +}; + +function WireframeHelper( object, hex ) { + + console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' ); + return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) ); + +} + +// + +Loader.prototype.extractUrlBase = function ( url ) { + + console.warn( 'THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.' ); + return LoaderUtils.extractUrlBase( url ); + +}; + +Loader.Handlers = { + + add: function ( /* regex, loader */ ) { + + console.error( 'THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.' ); + + }, + + get: function ( /* file */ ) { + + console.error( 'THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.' ); + + } + +}; + +function XHRLoader( manager ) { + + console.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' ); + return new FileLoader( manager ); + +} + +function BinaryTextureLoader( manager ) { + + console.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' ); + return new DataTextureLoader( manager ); + +} + +// + +Box2.prototype.center = function ( optionalTarget ) { + + console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' ); + return this.getCenter( optionalTarget ); + +}; + +Box2.prototype.empty = function () { + + console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' ); + return this.isEmpty(); + +}; + +Box2.prototype.isIntersectionBox = function ( box ) { + + console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' ); + return this.intersectsBox( box ); + +}; + +Box2.prototype.size = function ( optionalTarget ) { + + console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' ); + return this.getSize( optionalTarget ); + +}; + +// + +Box3.prototype.center = function ( optionalTarget ) { + + console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' ); + return this.getCenter( optionalTarget ); + +}; + +Box3.prototype.empty = function () { + + console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' ); + return this.isEmpty(); + +}; + +Box3.prototype.isIntersectionBox = function ( box ) { + + console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' ); + return this.intersectsBox( box ); + +}; + +Box3.prototype.isIntersectionSphere = function ( sphere ) { + + console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' ); + return this.intersectsSphere( sphere ); + +}; + +Box3.prototype.size = function ( optionalTarget ) { + + console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' ); + return this.getSize( optionalTarget ); + +}; + +// + +Sphere.prototype.empty = function () { + + console.warn( 'THREE.Sphere: .empty() has been renamed to .isEmpty().' ); + return this.isEmpty(); + +}; + +// + +Frustum.prototype.setFromMatrix = function ( m ) { + + console.warn( 'THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix().' ); + return this.setFromProjectionMatrix( m ); + +}; + +// + +Line3.prototype.center = function ( optionalTarget ) { + + console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' ); + return this.getCenter( optionalTarget ); + +}; + +// + +Matrix3.prototype.flattenToArrayOffset = function ( array, offset ) { + + console.warn( 'THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.' ); + return this.toArray( array, offset ); + +}; + +Matrix3.prototype.multiplyVector3 = function ( vector ) { + + console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' ); + return vector.applyMatrix3( this ); + +}; + +Matrix3.prototype.multiplyVector3Array = function ( /* a */ ) { + + console.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' ); + +}; + +Matrix3.prototype.applyToBufferAttribute = function ( attribute ) { + + console.warn( 'THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead.' ); + return attribute.applyMatrix3( this ); + +}; + +Matrix3.prototype.applyToVector3Array = function ( /* array, offset, length */ ) { + + console.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' ); + +}; + +Matrix3.prototype.getInverse = function ( matrix ) { + + console.warn( 'THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.' ); + return this.copy( matrix ).invert(); + +}; + +// + +Matrix4.prototype.extractPosition = function ( m ) { + + console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' ); + return this.copyPosition( m ); + +}; + +Matrix4.prototype.flattenToArrayOffset = function ( array, offset ) { + + console.warn( 'THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.' ); + return this.toArray( array, offset ); + +}; + +Matrix4.prototype.getPosition = function () { + + console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' ); + return new Vector3().setFromMatrixColumn( this, 3 ); + +}; + +Matrix4.prototype.setRotationFromQuaternion = function ( q ) { + + console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' ); + return this.makeRotationFromQuaternion( q ); + +}; + +Matrix4.prototype.multiplyToArray = function () { + + console.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' ); + +}; + +Matrix4.prototype.multiplyVector3 = function ( vector ) { + + console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' ); + return vector.applyMatrix4( this ); + +}; + +Matrix4.prototype.multiplyVector4 = function ( vector ) { + + console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' ); + return vector.applyMatrix4( this ); + +}; + +Matrix4.prototype.multiplyVector3Array = function ( /* a */ ) { + + console.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' ); + +}; + +Matrix4.prototype.rotateAxis = function ( v ) { + + console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' ); + v.transformDirection( this ); + +}; + +Matrix4.prototype.crossVector = function ( vector ) { + + console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' ); + return vector.applyMatrix4( this ); + +}; + +Matrix4.prototype.translate = function () { + + console.error( 'THREE.Matrix4: .translate() has been removed.' ); + +}; + +Matrix4.prototype.rotateX = function () { + + console.error( 'THREE.Matrix4: .rotateX() has been removed.' ); + +}; + +Matrix4.prototype.rotateY = function () { + + console.error( 'THREE.Matrix4: .rotateY() has been removed.' ); + +}; + +Matrix4.prototype.rotateZ = function () { + + console.error( 'THREE.Matrix4: .rotateZ() has been removed.' ); + +}; + +Matrix4.prototype.rotateByAxis = function () { + + console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' ); + +}; + +Matrix4.prototype.applyToBufferAttribute = function ( attribute ) { + + console.warn( 'THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead.' ); + return attribute.applyMatrix4( this ); + +}; + +Matrix4.prototype.applyToVector3Array = function ( /* array, offset, length */ ) { + + console.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' ); + +}; + +Matrix4.prototype.makeFrustum = function ( left, right, bottom, top, near, far ) { + + console.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' ); + return this.makePerspective( left, right, top, bottom, near, far ); + +}; + +Matrix4.prototype.getInverse = function ( matrix ) { + + console.warn( 'THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.' ); + return this.copy( matrix ).invert(); + +}; + +// + +Plane.prototype.isIntersectionLine = function ( line ) { + + console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' ); + return this.intersectsLine( line ); + +}; + +// + +Quaternion.prototype.multiplyVector3 = function ( vector ) { + + console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' ); + return vector.applyQuaternion( this ); + +}; + +Quaternion.prototype.inverse = function ( ) { + + console.warn( 'THREE.Quaternion: .inverse() has been renamed to invert().' ); + return this.invert(); + +}; + +// + +Ray.prototype.isIntersectionBox = function ( box ) { + + console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' ); + return this.intersectsBox( box ); + +}; + +Ray.prototype.isIntersectionPlane = function ( plane ) { + + console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' ); + return this.intersectsPlane( plane ); + +}; + +Ray.prototype.isIntersectionSphere = function ( sphere ) { + + console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' ); + return this.intersectsSphere( sphere ); + +}; + +// + +Triangle.prototype.area = function () { + + console.warn( 'THREE.Triangle: .area() has been renamed to .getArea().' ); + return this.getArea(); + +}; + +Triangle.prototype.barycoordFromPoint = function ( point, target ) { + + console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' ); + return this.getBarycoord( point, target ); + +}; + +Triangle.prototype.midpoint = function ( target ) { + + console.warn( 'THREE.Triangle: .midpoint() has been renamed to .getMidpoint().' ); + return this.getMidpoint( target ); + +}; + +Triangle.prototypenormal = function ( target ) { + + console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' ); + return this.getNormal( target ); + +}; + +Triangle.prototype.plane = function ( target ) { + + console.warn( 'THREE.Triangle: .plane() has been renamed to .getPlane().' ); + return this.getPlane( target ); + +}; + +Triangle.barycoordFromPoint = function ( point, a, b, c, target ) { + + console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' ); + return Triangle.getBarycoord( point, a, b, c, target ); + +}; + +Triangle.normal = function ( a, b, c, target ) { + + console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' ); + return Triangle.getNormal( a, b, c, target ); + +}; + +// + +Shape.prototype.extractAllPoints = function ( divisions ) { + + console.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' ); + return this.extractPoints( divisions ); + +}; + +Shape.prototype.extrude = function ( options ) { + + console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' ); + return new ExtrudeGeometry( this, options ); + +}; + +Shape.prototype.makeGeometry = function ( options ) { + + console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' ); + return new ShapeGeometry( this, options ); + +}; + +// + +Vector2.prototype.fromAttribute = function ( attribute, index, offset ) { + + console.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' ); + return this.fromBufferAttribute( attribute, index, offset ); + +}; + +Vector2.prototype.distanceToManhattan = function ( v ) { + + console.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' ); + return this.manhattanDistanceTo( v ); + +}; + +Vector2.prototype.lengthManhattan = function () { + + console.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' ); + return this.manhattanLength(); + +}; + +// + +Vector3.prototype.setEulerFromRotationMatrix = function () { + + console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' ); + +}; + +Vector3.prototype.setEulerFromQuaternion = function () { + + console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' ); + +}; + +Vector3.prototype.getPositionFromMatrix = function ( m ) { + + console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' ); + return this.setFromMatrixPosition( m ); + +}; + +Vector3.prototype.getScaleFromMatrix = function ( m ) { + + console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' ); + return this.setFromMatrixScale( m ); + +}; + +Vector3.prototype.getColumnFromMatrix = function ( index, matrix ) { + + console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' ); + return this.setFromMatrixColumn( matrix, index ); + +}; + +Vector3.prototype.applyProjection = function ( m ) { + + console.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' ); + return this.applyMatrix4( m ); + +}; + +Vector3.prototype.fromAttribute = function ( attribute, index, offset ) { + + console.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' ); + return this.fromBufferAttribute( attribute, index, offset ); + +}; + +Vector3.prototype.distanceToManhattan = function ( v ) { + + console.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' ); + return this.manhattanDistanceTo( v ); + +}; + +Vector3.prototype.lengthManhattan = function () { + + console.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' ); + return this.manhattanLength(); + +}; + +// + +Vector4.prototype.fromAttribute = function ( attribute, index, offset ) { + + console.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' ); + return this.fromBufferAttribute( attribute, index, offset ); + +}; + +Vector4.prototype.lengthManhattan = function () { + + console.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' ); + return this.manhattanLength(); + +}; + +// + +Object3D.prototype.getChildByName = function ( name ) { + + console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' ); + return this.getObjectByName( name ); + +}; + +Object3D.prototype.renderDepth = function () { + + console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' ); + +}; + +Object3D.prototype.translate = function ( distance, axis ) { + + console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' ); + return this.translateOnAxis( axis, distance ); + +}; + +Object3D.prototype.getWorldRotation = function () { + + console.error( 'THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.' ); + +}; + +Object3D.prototype.applyMatrix = function ( matrix ) { + + console.warn( 'THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4().' ); + return this.applyMatrix4( matrix ); + +}; + +Object.defineProperties( Object3D.prototype, { + + eulerOrder: { + get: function () { + + console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' ); + return this.rotation.order; + + }, + set: function ( value ) { + + console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' ); + this.rotation.order = value; + + } + }, + useQuaternion: { + get: function () { + + console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' ); + + }, + set: function () { + + console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' ); + + } + } + +} ); + +Mesh.prototype.setDrawMode = function () { + + console.error( 'THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.' ); + +}; + +Object.defineProperties( Mesh.prototype, { + + drawMode: { + get: function () { + + console.error( 'THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode.' ); + return TrianglesDrawMode; + + }, + set: function () { + + console.error( 'THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.' ); + + } + } + +} ); + +SkinnedMesh.prototype.initBones = function () { + + console.error( 'THREE.SkinnedMesh: initBones() has been removed.' ); + +}; + +// + +PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) { + + console.warn( 'THREE.PerspectiveCamera.setLens is deprecated. ' + + 'Use .setFocalLength and .filmGauge for a photographic setup.' ); + + if ( filmGauge !== undefined ) this.filmGauge = filmGauge; + this.setFocalLength( focalLength ); + +}; + +// + +Object.defineProperties( Light.prototype, { + onlyShadow: { + set: function () { + + console.warn( 'THREE.Light: .onlyShadow has been removed.' ); + + } + }, + shadowCameraFov: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' ); + this.shadow.camera.fov = value; + + } + }, + shadowCameraLeft: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' ); + this.shadow.camera.left = value; + + } + }, + shadowCameraRight: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' ); + this.shadow.camera.right = value; + + } + }, + shadowCameraTop: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' ); + this.shadow.camera.top = value; + + } + }, + shadowCameraBottom: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' ); + this.shadow.camera.bottom = value; + + } + }, + shadowCameraNear: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' ); + this.shadow.camera.near = value; + + } + }, + shadowCameraFar: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' ); + this.shadow.camera.far = value; + + } + }, + shadowCameraVisible: { + set: function () { + + console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' ); + + } + }, + shadowBias: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' ); + this.shadow.bias = value; + + } + }, + shadowDarkness: { + set: function () { + + console.warn( 'THREE.Light: .shadowDarkness has been removed.' ); + + } + }, + shadowMapWidth: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' ); + this.shadow.mapSize.width = value; + + } + }, + shadowMapHeight: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' ); + this.shadow.mapSize.height = value; + + } + } +} ); + +// + +Object.defineProperties( BufferAttribute.prototype, { + + length: { + get: function () { + + console.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' ); + return this.array.length; + + } + }, + dynamic: { + get: function () { + + console.warn( 'THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.' ); + return this.usage === DynamicDrawUsage; + + }, + set: function ( /* value */ ) { + + console.warn( 'THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.' ); + this.setUsage( DynamicDrawUsage ); + + } + } + +} ); + +BufferAttribute.prototype.setDynamic = function ( value ) { + + console.warn( 'THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead.' ); + this.setUsage( value === true ? DynamicDrawUsage : StaticDrawUsage ); + return this; + +}; + +BufferAttribute.prototype.copyIndicesArray = function ( /* indices */ ) { + + console.error( 'THREE.BufferAttribute: .copyIndicesArray() has been removed.' ); + +}, + +BufferAttribute.prototype.setArray = function ( /* array */ ) { + + console.error( 'THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers' ); + +}; + +// + +BufferGeometry.prototype.addIndex = function ( index ) { + + console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' ); + this.setIndex( index ); + +}; + +BufferGeometry.prototype.addAttribute = function ( name, attribute ) { + + console.warn( 'THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute().' ); + + if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) { + + console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' ); + + return this.setAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) ); + + } + + if ( name === 'index' ) { + + console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' ); + this.setIndex( attribute ); + + return this; + + } + + return this.setAttribute( name, attribute ); + +}; + +BufferGeometry.prototype.addDrawCall = function ( start, count, indexOffset ) { + + if ( indexOffset !== undefined ) { + + console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' ); + + } + + console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' ); + this.addGroup( start, count ); + +}; + +BufferGeometry.prototype.clearDrawCalls = function () { + + console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' ); + this.clearGroups(); + +}; + +BufferGeometry.prototype.computeOffsets = function () { + + console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' ); + +}; + +BufferGeometry.prototype.removeAttribute = function ( name ) { + + console.warn( 'THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute().' ); + + return this.deleteAttribute( name ); + +}; + +BufferGeometry.prototype.applyMatrix = function ( matrix ) { + + console.warn( 'THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4().' ); + return this.applyMatrix4( matrix ); + +}; + +Object.defineProperties( BufferGeometry.prototype, { + + drawcalls: { + get: function () { + + console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' ); + return this.groups; + + } + }, + offsets: { + get: function () { + + console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' ); + return this.groups; + + } + } + +} ); + +InterleavedBuffer.prototype.setDynamic = function ( value ) { + + console.warn( 'THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead.' ); + this.setUsage( value === true ? DynamicDrawUsage : StaticDrawUsage ); + return this; + +}; + +InterleavedBuffer.prototype.setArray = function ( /* array */ ) { + + console.error( 'THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers' ); + +}; + +// + +ExtrudeGeometry.prototype.getArrays = function () { + + console.error( 'THREE.ExtrudeGeometry: .getArrays() has been removed.' ); + +}; + +ExtrudeGeometry.prototype.addShapeList = function () { + + console.error( 'THREE.ExtrudeGeometry: .addShapeList() has been removed.' ); + +}; + +ExtrudeGeometry.prototype.addShape = function () { + + console.error( 'THREE.ExtrudeGeometry: .addShape() has been removed.' ); + +}; + +// + +Scene.prototype.dispose = function () { + + console.error( 'THREE.Scene: .dispose() has been removed.' ); + +}; + +// + +Uniform.prototype.onUpdate = function () { + + console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' ); + return this; + +}; + +// + +Object.defineProperties( Material.prototype, { + + wrapAround: { + get: function () { + + console.warn( 'THREE.Material: .wrapAround has been removed.' ); + + }, + set: function () { + + console.warn( 'THREE.Material: .wrapAround has been removed.' ); + + } + }, + + overdraw: { + get: function () { + + console.warn( 'THREE.Material: .overdraw has been removed.' ); + + }, + set: function () { + + console.warn( 'THREE.Material: .overdraw has been removed.' ); + + } + }, + + wrapRGB: { + get: function () { + + console.warn( 'THREE.Material: .wrapRGB has been removed.' ); + return new Color(); + + } + }, + + shading: { + get: function () { + + console.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' ); + + }, + set: function ( value ) { + + console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' ); + this.flatShading = ( value === FlatShading ); + + } + }, + + stencilMask: { + get: function () { + + console.warn( 'THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.' ); + return this.stencilFuncMask; + + }, + set: function ( value ) { + + console.warn( 'THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.' ); + this.stencilFuncMask = value; + + } + }, + + vertexTangents: { + get: function () { + + console.warn( 'THREE.' + this.type + ': .vertexTangents has been removed.' ); + + }, + set: function () { + + console.warn( 'THREE.' + this.type + ': .vertexTangents has been removed.' ); + + } + }, + +} ); + +Object.defineProperties( ShaderMaterial.prototype, { + + derivatives: { + get: function () { + + console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' ); + return this.extensions.derivatives; + + }, + set: function ( value ) { + + console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' ); + this.extensions.derivatives = value; + + } + } + +} ); + +// + +WebGLRenderer.prototype.clearTarget = function ( renderTarget, color, depth, stencil ) { + + console.warn( 'THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead.' ); + this.setRenderTarget( renderTarget ); + this.clear( color, depth, stencil ); + +}; + +WebGLRenderer.prototype.animate = function ( callback ) { + + console.warn( 'THREE.WebGLRenderer: .animate() is now .setAnimationLoop().' ); + this.setAnimationLoop( callback ); + +}; + +WebGLRenderer.prototype.getCurrentRenderTarget = function () { + + console.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' ); + return this.getRenderTarget(); + +}; + +WebGLRenderer.prototype.getMaxAnisotropy = function () { + + console.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' ); + return this.capabilities.getMaxAnisotropy(); + +}; + +WebGLRenderer.prototype.getPrecision = function () { + + console.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' ); + return this.capabilities.precision; + +}; + +WebGLRenderer.prototype.resetGLState = function () { + + console.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' ); + return this.state.reset(); + +}; + +WebGLRenderer.prototype.supportsFloatTextures = function () { + + console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' ); + return this.extensions.get( 'OES_texture_float' ); + +}; + +WebGLRenderer.prototype.supportsHalfFloatTextures = function () { + + console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' ); + return this.extensions.get( 'OES_texture_half_float' ); + +}; + +WebGLRenderer.prototype.supportsStandardDerivatives = function () { + + console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' ); + return this.extensions.get( 'OES_standard_derivatives' ); + +}; + +WebGLRenderer.prototype.supportsCompressedTextureS3TC = function () { + + console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' ); + return this.extensions.get( 'WEBGL_compressed_texture_s3tc' ); + +}; + +WebGLRenderer.prototype.supportsCompressedTexturePVRTC = function () { + + console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' ); + return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' ); + +}; + +WebGLRenderer.prototype.supportsBlendMinMax = function () { + + console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' ); + return this.extensions.get( 'EXT_blend_minmax' ); + +}; + +WebGLRenderer.prototype.supportsVertexTextures = function () { + + console.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' ); + return this.capabilities.vertexTextures; + +}; + +WebGLRenderer.prototype.supportsInstancedArrays = function () { + + console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' ); + return this.extensions.get( 'ANGLE_instanced_arrays' ); + +}; + +WebGLRenderer.prototype.enableScissorTest = function ( boolean ) { + + console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' ); + this.setScissorTest( boolean ); + +}; + +WebGLRenderer.prototype.initMaterial = function () { + + console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' ); + +}; + +WebGLRenderer.prototype.addPrePlugin = function () { + + console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' ); + +}; + +WebGLRenderer.prototype.addPostPlugin = function () { + + console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' ); + +}; + +WebGLRenderer.prototype.updateShadowMap = function () { + + console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' ); + +}; + +WebGLRenderer.prototype.setFaceCulling = function () { + + console.warn( 'THREE.WebGLRenderer: .setFaceCulling() has been removed.' ); + +}; + +WebGLRenderer.prototype.allocTextureUnit = function () { + + console.warn( 'THREE.WebGLRenderer: .allocTextureUnit() has been removed.' ); + +}; + +WebGLRenderer.prototype.setTexture = function () { + + console.warn( 'THREE.WebGLRenderer: .setTexture() has been removed.' ); + +}; + +WebGLRenderer.prototype.setTexture2D = function () { + + console.warn( 'THREE.WebGLRenderer: .setTexture2D() has been removed.' ); + +}; + +WebGLRenderer.prototype.setTextureCube = function () { + + console.warn( 'THREE.WebGLRenderer: .setTextureCube() has been removed.' ); + +}; + +WebGLRenderer.prototype.getActiveMipMapLevel = function () { + + console.warn( 'THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel().' ); + return this.getActiveMipmapLevel(); + +}; + +Object.defineProperties( WebGLRenderer.prototype, { + + shadowMapEnabled: { + get: function () { + + return this.shadowMap.enabled; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' ); + this.shadowMap.enabled = value; + + } + }, + shadowMapType: { + get: function () { + + return this.shadowMap.type; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' ); + this.shadowMap.type = value; + + } + }, + shadowMapCullFace: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' ); + return undefined; + + }, + set: function ( /* value */ ) { + + console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' ); + + } + }, + context: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .context has been removed. Use .getContext() instead.' ); + return this.getContext(); + + } + }, + vr: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .vr has been renamed to .xr' ); + return this.xr; + + } + }, + gammaInput: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.' ); + return false; + + }, + set: function () { + + console.warn( 'THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.' ); + + } + }, + gammaOutput: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.' ); + return false; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.' ); + this.outputEncoding = ( value === true ) ? sRGBEncoding : LinearEncoding; + + } + }, + toneMappingWhitePoint: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.' ); + return 1.0; + + }, + set: function () { + + console.warn( 'THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.' ); + + } + }, + +} ); + +Object.defineProperties( WebGLShadowMap.prototype, { + + cullFace: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' ); + return undefined; + + }, + set: function ( /* cullFace */ ) { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' ); + + } + }, + renderReverseSided: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' ); + return undefined; + + }, + set: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' ); + + } + }, + renderSingleSided: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' ); + return undefined; + + }, + set: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' ); + + } + } + +} ); + +function WebGLRenderTargetCube( width, height, options ) { + + console.warn( 'THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options ).' ); + return new WebGLCubeRenderTarget( width, options ); + +} + +// + +Object.defineProperties( WebGLRenderTarget.prototype, { + + wrapS: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' ); + return this.texture.wrapS; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' ); + this.texture.wrapS = value; + + } + }, + wrapT: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' ); + return this.texture.wrapT; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' ); + this.texture.wrapT = value; + + } + }, + magFilter: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' ); + return this.texture.magFilter; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' ); + this.texture.magFilter = value; + + } + }, + minFilter: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' ); + return this.texture.minFilter; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' ); + this.texture.minFilter = value; + + } + }, + anisotropy: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' ); + return this.texture.anisotropy; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' ); + this.texture.anisotropy = value; + + } + }, + offset: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' ); + return this.texture.offset; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' ); + this.texture.offset = value; + + } + }, + repeat: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' ); + return this.texture.repeat; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' ); + this.texture.repeat = value; + + } + }, + format: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' ); + return this.texture.format; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' ); + this.texture.format = value; + + } + }, + type: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' ); + return this.texture.type; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' ); + this.texture.type = value; + + } + }, + generateMipmaps: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' ); + return this.texture.generateMipmaps; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' ); + this.texture.generateMipmaps = value; + + } + } + +} ); + +// + +Audio.prototype.load = function ( file ) { + + console.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' ); + const scope = this; + const audioLoader = new AudioLoader(); + audioLoader.load( file, function ( buffer ) { + + scope.setBuffer( buffer ); + + } ); + return this; + +}; + + +AudioAnalyser.prototype.getData = function () { + + console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' ); + return this.getFrequencyData(); + +}; + +// + +CubeCamera.prototype.updateCubeMap = function ( renderer, scene ) { + + console.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' ); + return this.update( renderer, scene ); + +}; + +CubeCamera.prototype.clear = function ( renderer, color, depth, stencil ) { + + console.warn( 'THREE.CubeCamera: .clear() is now .renderTarget.clear().' ); + return this.renderTarget.clear( renderer, color, depth, stencil ); + +}; + +ImageUtils.crossOrigin = undefined; + +ImageUtils.loadTexture = function ( url, mapping, onLoad, onError ) { + + console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' ); + + const loader = new TextureLoader(); + loader.setCrossOrigin( this.crossOrigin ); + + const texture = loader.load( url, onLoad, undefined, onError ); + + if ( mapping ) texture.mapping = mapping; + + return texture; + +}; + +ImageUtils.loadTextureCube = function ( urls, mapping, onLoad, onError ) { + + console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' ); + + const loader = new CubeTextureLoader(); + loader.setCrossOrigin( this.crossOrigin ); + + const texture = loader.load( urls, onLoad, undefined, onError ); + + if ( mapping ) texture.mapping = mapping; + + return texture; + +}; + +ImageUtils.loadCompressedTexture = function () { + + console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' ); + +}; + +ImageUtils.loadCompressedTextureCube = function () { + + console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' ); + +}; + +// + +function CanvasRenderer() { + + console.error( 'THREE.CanvasRenderer has been removed' ); + +} + +// + +function JSONLoader() { + + console.error( 'THREE.JSONLoader has been removed.' ); + +} + +// + +const SceneUtils = { + + createMultiMaterialObject: function ( /* geometry, materials */ ) { + + console.error( 'THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js' ); + + }, + + detach: function ( /* child, parent, scene */ ) { + + console.error( 'THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js' ); + + }, + + attach: function ( /* child, scene, parent */ ) { + + console.error( 'THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js' ); + + } + +}; + +// + +function LensFlare() { + + console.error( 'THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js' ); + +} + +// + +function ParametricGeometry() { + + console.error( 'THREE.ParametricGeometry has been moved to /examples/jsm/geometries/ParametricGeometry.js' ); + return new BufferGeometry(); + +} + +function TextGeometry() { + + console.error( 'THREE.TextGeometry has been moved to /examples/jsm/geometries/TextGeometry.js' ); + return new BufferGeometry(); + +} + +function FontLoader() { + + console.error( 'THREE.FontLoader has been moved to /examples/jsm/loaders/FontLoader.js' ); + +} + +function Font() { + + console.error( 'THREE.Font has been moved to /examples/jsm/loaders/FontLoader.js' ); + +} + +function ImmediateRenderObject() { + + console.error( 'THREE.ImmediateRenderObject has been removed.' ); + +} + +if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) { + + /* eslint-disable no-undef */ + __THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'register', { detail: { + revision: REVISION, + } } ) ); + /* eslint-enable no-undef */ + +} + +if ( typeof window !== 'undefined' ) { + + if ( window.__THREE__ ) { + + console.warn( 'WARNING: Multiple instances of Three.js being imported.' ); + + } else { + + window.__THREE__ = REVISION; + + } + +} + +export { ACESFilmicToneMapping, AddEquation, AddOperation, AdditiveAnimationBlendMode, AdditiveBlending, AlphaFormat, AlwaysDepth, AlwaysStencilFunc, AmbientLight, AmbientLightProbe, AnimationClip, AnimationLoader, AnimationMixer, AnimationObjectGroup, AnimationUtils, ArcCurve, ArrayCamera, ArrowHelper, Audio, AudioAnalyser, AudioContext, AudioListener, AudioLoader, AxesHelper, AxisHelper, BackSide, BasicDepthPacking, BasicShadowMap, BinaryTextureLoader, Bone, BooleanKeyframeTrack, BoundingBoxHelper, Box2, Box3, Box3Helper, BoxGeometry as BoxBufferGeometry, BoxGeometry, BoxHelper, BufferAttribute, BufferGeometry, BufferGeometryLoader, ByteType, Cache, Camera, CameraHelper, CanvasRenderer, CanvasTexture, CatmullRomCurve3, CineonToneMapping, CircleGeometry as CircleBufferGeometry, CircleGeometry, ClampToEdgeWrapping, Clock, Color, ColorKeyframeTrack, CompressedTexture, CompressedTextureLoader, ConeGeometry as ConeBufferGeometry, ConeGeometry, CubeCamera, CubeReflectionMapping, CubeRefractionMapping, CubeTexture, CubeTextureLoader, CubeUVReflectionMapping, CubeUVRefractionMapping, CubicBezierCurve, CubicBezierCurve3, CubicInterpolant, CullFaceBack, CullFaceFront, CullFaceFrontBack, CullFaceNone, Curve, CurvePath, CustomBlending, CustomToneMapping, CylinderGeometry as CylinderBufferGeometry, CylinderGeometry, Cylindrical, DataTexture, DataTexture2DArray, DataTexture3D, DataTextureLoader, DataUtils, DecrementStencilOp, DecrementWrapStencilOp, DefaultLoadingManager, DepthFormat, DepthStencilFormat, DepthTexture, DirectionalLight, DirectionalLightHelper, DiscreteInterpolant, DodecahedronGeometry as DodecahedronBufferGeometry, DodecahedronGeometry, DoubleSide, DstAlphaFactor, DstColorFactor, DynamicBufferAttribute, DynamicCopyUsage, DynamicDrawUsage, DynamicReadUsage, EdgesGeometry, EdgesHelper, EllipseCurve, EqualDepth, EqualStencilFunc, EquirectangularReflectionMapping, EquirectangularRefractionMapping, Euler, EventDispatcher, ExtrudeGeometry as ExtrudeBufferGeometry, ExtrudeGeometry, FaceColors, FileLoader, FlatShading, Float16BufferAttribute, Float32Attribute, Float32BufferAttribute, Float64Attribute, Float64BufferAttribute, FloatType, Fog, FogExp2, Font, FontLoader, FrontSide, Frustum, GLBufferAttribute, GLSL1, GLSL3, GammaEncoding, GreaterDepth, GreaterEqualDepth, GreaterEqualStencilFunc, GreaterStencilFunc, GridHelper, Group, HalfFloatType, HemisphereLight, HemisphereLightHelper, HemisphereLightProbe, IcosahedronGeometry as IcosahedronBufferGeometry, IcosahedronGeometry, ImageBitmapLoader, ImageLoader, ImageUtils, ImmediateRenderObject, IncrementStencilOp, IncrementWrapStencilOp, InstancedBufferAttribute, InstancedBufferGeometry, InstancedInterleavedBuffer, InstancedMesh, Int16Attribute, Int16BufferAttribute, Int32Attribute, Int32BufferAttribute, Int8Attribute, Int8BufferAttribute, IntType, InterleavedBuffer, InterleavedBufferAttribute, Interpolant, InterpolateDiscrete, InterpolateLinear, InterpolateSmooth, InvertStencilOp, JSONLoader, KeepStencilOp, KeyframeTrack, LOD, LatheGeometry as LatheBufferGeometry, LatheGeometry, Layers, LensFlare, LessDepth, LessEqualDepth, LessEqualStencilFunc, LessStencilFunc, Light, LightProbe, Line, Line3, LineBasicMaterial, LineCurve, LineCurve3, LineDashedMaterial, LineLoop, LinePieces, LineSegments, LineStrip, LinearEncoding, LinearFilter, LinearInterpolant, LinearMipMapLinearFilter, LinearMipMapNearestFilter, LinearMipmapLinearFilter, LinearMipmapNearestFilter, LinearToneMapping, Loader, LoaderUtils, LoadingManager, LogLuvEncoding, LoopOnce, LoopPingPong, LoopRepeat, LuminanceAlphaFormat, LuminanceFormat, MOUSE, Material, MaterialLoader, MathUtils as Math, MathUtils, Matrix3, Matrix4, MaxEquation, Mesh, MeshBasicMaterial, MeshDepthMaterial, MeshDistanceMaterial, MeshFaceMaterial, MeshLambertMaterial, MeshMatcapMaterial, MeshNormalMaterial, MeshPhongMaterial, MeshPhysicalMaterial, MeshStandardMaterial, MeshToonMaterial, MinEquation, MirroredRepeatWrapping, MixOperation, MultiMaterial, MultiplyBlending, MultiplyOperation, NearestFilter, NearestMipMapLinearFilter, NearestMipMapNearestFilter, NearestMipmapLinearFilter, NearestMipmapNearestFilter, NeverDepth, NeverStencilFunc, NoBlending, NoColors, NoToneMapping, NormalAnimationBlendMode, NormalBlending, NotEqualDepth, NotEqualStencilFunc, NumberKeyframeTrack, Object3D, ObjectLoader, ObjectSpaceNormalMap, OctahedronGeometry as OctahedronBufferGeometry, OctahedronGeometry, OneFactor, OneMinusDstAlphaFactor, OneMinusDstColorFactor, OneMinusSrcAlphaFactor, OneMinusSrcColorFactor, OrthographicCamera, PCFShadowMap, PCFSoftShadowMap, PMREMGenerator, ParametricGeometry, Particle, ParticleBasicMaterial, ParticleSystem, ParticleSystemMaterial, Path, PerspectiveCamera, Plane, PlaneGeometry as PlaneBufferGeometry, PlaneGeometry, PlaneHelper, PointCloud, PointCloudMaterial, PointLight, PointLightHelper, Points, PointsMaterial, PolarGridHelper, PolyhedronGeometry as PolyhedronBufferGeometry, PolyhedronGeometry, PositionalAudio, PropertyBinding, PropertyMixer, QuadraticBezierCurve, QuadraticBezierCurve3, Quaternion, QuaternionKeyframeTrack, QuaternionLinearInterpolant, REVISION, RGBADepthPacking, RGBAFormat, RGBAIntegerFormat, RGBA_ASTC_10x10_Format, RGBA_ASTC_10x5_Format, RGBA_ASTC_10x6_Format, RGBA_ASTC_10x8_Format, RGBA_ASTC_12x10_Format, RGBA_ASTC_12x12_Format, RGBA_ASTC_4x4_Format, RGBA_ASTC_5x4_Format, RGBA_ASTC_5x5_Format, RGBA_ASTC_6x5_Format, RGBA_ASTC_6x6_Format, RGBA_ASTC_8x5_Format, RGBA_ASTC_8x6_Format, RGBA_ASTC_8x8_Format, RGBA_BPTC_Format, RGBA_ETC2_EAC_Format, RGBA_PVRTC_2BPPV1_Format, RGBA_PVRTC_4BPPV1_Format, RGBA_S3TC_DXT1_Format, RGBA_S3TC_DXT3_Format, RGBA_S3TC_DXT5_Format, RGBDEncoding, RGBEEncoding, RGBEFormat, RGBFormat, RGBIntegerFormat, RGBM16Encoding, RGBM7Encoding, RGB_ETC1_Format, RGB_ETC2_Format, RGB_PVRTC_2BPPV1_Format, RGB_PVRTC_4BPPV1_Format, RGB_S3TC_DXT1_Format, RGFormat, RGIntegerFormat, RawShaderMaterial, Ray, Raycaster, RectAreaLight, RedFormat, RedIntegerFormat, ReinhardToneMapping, RepeatWrapping, ReplaceStencilOp, ReverseSubtractEquation, RingGeometry as RingBufferGeometry, RingGeometry, SRGB8_ALPHA8_ASTC_10x10_Format, SRGB8_ALPHA8_ASTC_10x5_Format, SRGB8_ALPHA8_ASTC_10x6_Format, SRGB8_ALPHA8_ASTC_10x8_Format, SRGB8_ALPHA8_ASTC_12x10_Format, SRGB8_ALPHA8_ASTC_12x12_Format, SRGB8_ALPHA8_ASTC_4x4_Format, SRGB8_ALPHA8_ASTC_5x4_Format, SRGB8_ALPHA8_ASTC_5x5_Format, SRGB8_ALPHA8_ASTC_6x5_Format, SRGB8_ALPHA8_ASTC_6x6_Format, SRGB8_ALPHA8_ASTC_8x5_Format, SRGB8_ALPHA8_ASTC_8x6_Format, SRGB8_ALPHA8_ASTC_8x8_Format, Scene, SceneUtils, ShaderChunk, ShaderLib, ShaderMaterial, ShadowMaterial, Shape, ShapeGeometry as ShapeBufferGeometry, ShapeGeometry, ShapePath, ShapeUtils, ShortType, Skeleton, SkeletonHelper, SkinnedMesh, SmoothShading, Sphere, SphereGeometry as SphereBufferGeometry, SphereGeometry, Spherical, SphericalHarmonics3, SplineCurve, SpotLight, SpotLightHelper, Sprite, SpriteMaterial, SrcAlphaFactor, SrcAlphaSaturateFactor, SrcColorFactor, StaticCopyUsage, StaticDrawUsage, StaticReadUsage, StereoCamera, StreamCopyUsage, StreamDrawUsage, StreamReadUsage, StringKeyframeTrack, SubtractEquation, SubtractiveBlending, TOUCH, TangentSpaceNormalMap, TetrahedronGeometry as TetrahedronBufferGeometry, TetrahedronGeometry, TextGeometry, Texture, TextureLoader, TorusGeometry as TorusBufferGeometry, TorusGeometry, TorusKnotGeometry as TorusKnotBufferGeometry, TorusKnotGeometry, Triangle, TriangleFanDrawMode, TriangleStripDrawMode, TrianglesDrawMode, TubeGeometry as TubeBufferGeometry, TubeGeometry, UVMapping, Uint16Attribute, Uint16BufferAttribute, Uint32Attribute, Uint32BufferAttribute, Uint8Attribute, Uint8BufferAttribute, Uint8ClampedAttribute, Uint8ClampedBufferAttribute, Uniform, UniformsLib, UniformsUtils, UnsignedByteType, UnsignedInt248Type, UnsignedIntType, UnsignedShort4444Type, UnsignedShort5551Type, UnsignedShort565Type, UnsignedShortType, VSMShadowMap, Vector2, Vector3, Vector4, VectorKeyframeTrack, Vertex, VertexColors, VideoTexture, WebGL1Renderer, WebGLCubeRenderTarget, WebGLMultipleRenderTargets, WebGLMultisampleRenderTarget, WebGLRenderTarget, WebGLRenderTargetCube, WebGLRenderer, WebGLUtils, WireframeGeometry, WireframeHelper, WrapAroundEnding, XHRLoader, ZeroCurvatureEnding, ZeroFactor, ZeroSlopeEnding, ZeroStencilOp, sRGBEncoding }; diff --git a/public/three/examples/index.html b/public/three/examples/index.html new file mode 100644 index 0000000..8f4fee9 --- /dev/null +++ b/public/three/examples/index.html @@ -0,0 +1,256 @@ + + + + + xyt + + + + + + + +
+ +
+ + + + + + \ No newline at end of file diff --git a/public/three/examples/jsm/controls/OrbitControls.js b/public/three/examples/jsm/controls/OrbitControls.js new file mode 100644 index 0000000..1a2f746 --- /dev/null +++ b/public/three/examples/jsm/controls/OrbitControls.js @@ -0,0 +1,1294 @@ +import { + EventDispatcher, + MOUSE, + Quaternion, + Spherical, + TOUCH, + Vector2, + Vector3 +} from '../../../build/three.module.js'; + +// This set of controls performs orbiting, dollying (zooming), and panning. +// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default). +// +// Orbit - left mouse / touch: one-finger move +// Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish +// Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move + +const _changeEvent = { type: 'change' }; +const _startEvent = { type: 'start' }; +const _endEvent = { type: 'end' }; + +class OrbitControls extends EventDispatcher { + + constructor( object, domElement ) { + + super(); + + if ( domElement === undefined ) console.warn( 'THREE.OrbitControls: The second parameter "domElement" is now mandatory.' ); + if ( domElement === document ) console.error( 'THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.' ); + + this.object = object; + this.domElement = domElement; + this.domElement.style.touchAction = 'none'; // disable touch scroll + + // Set to false to disable this control + this.enabled = true; + + // "target" sets the location of focus, where the object orbits around + this.target = new Vector3(); + + // How far you can dolly in and out ( PerspectiveCamera only ) + this.minDistance = 0; + this.maxDistance = Infinity; + + // How far you can zoom in and out ( OrthographicCamera only ) + this.minZoom = 0; + this.maxZoom = Infinity; + + // How far you can orbit vertically, upper and lower limits. + // Range is 0 to Math.PI radians. + this.minPolarAngle = 0; // radians + this.maxPolarAngle = Math.PI; // radians + + // How far you can orbit horizontally, upper and lower limits. + // If set, the interval [ min, max ] must be a sub-interval of [ - 2 PI, 2 PI ], with ( max - min < 2 PI ) + this.minAzimuthAngle = - Infinity; // radians + this.maxAzimuthAngle = Infinity; // radians + + // Set to true to enable damping (inertia) + // If damping is enabled, you must call controls.update() in your animation loop + this.enableDamping = false; + this.dampingFactor = 0.05; + + // This option actually enables dollying in and out; left as "zoom" for backwards compatibility. + // Set to false to disable zooming + this.enableZoom = true; + this.zoomSpeed = 1.0; + + // Set to false to disable rotating + this.enableRotate = true; + this.rotateSpeed = 1.0; + + // Set to false to disable panning + this.enablePan = true; + this.panSpeed = 1.0; + this.screenSpacePanning = true; // if false, pan orthogonal to world-space direction camera.up + this.keyPanSpeed = 7.0; // pixels moved per arrow key push + + // Set to true to automatically rotate around the target + // If auto-rotate is enabled, you must call controls.update() in your animation loop + this.autoRotate = false; + this.autoRotateSpeed = 2.0; // 30 seconds per orbit when fps is 60 + + // The four arrow keys + this.keys = { LEFT: 'ArrowLeft', UP: 'ArrowUp', RIGHT: 'ArrowRight', BOTTOM: 'ArrowDown' }; + + // Mouse buttons + this.mouseButtons = { LEFT: MOUSE.ROTATE, MIDDLE: MOUSE.DOLLY, RIGHT: MOUSE.PAN }; + + // Touch fingers + this.touches = { ONE: TOUCH.ROTATE, TWO: TOUCH.DOLLY_PAN }; + + // for reset + this.target0 = this.target.clone(); + this.position0 = this.object.position.clone(); + this.zoom0 = this.object.zoom; + + // the target DOM element for key events + this._domElementKeyEvents = null; + + // + // public methods + // + + this.getPolarAngle = function () { + + return spherical.phi; + + }; + + this.getAzimuthalAngle = function () { + + return spherical.theta; + + }; + + this.getDistance = function () { + + return this.object.position.distanceTo( this.target ); + + }; + + this.listenToKeyEvents = function ( domElement ) { + + domElement.addEventListener( 'keydown', onKeyDown ); + this._domElementKeyEvents = domElement; + + }; + + this.saveState = function () { + + scope.target0.copy( scope.target ); + scope.position0.copy( scope.object.position ); + scope.zoom0 = scope.object.zoom; + + }; + + this.reset = function () { + + scope.target.copy( scope.target0 ); + scope.object.position.copy( scope.position0 ); + scope.object.zoom = scope.zoom0; + + scope.object.updateProjectionMatrix(); + scope.dispatchEvent( _changeEvent ); + + scope.update(); + + state = STATE.NONE; + + }; + + // this method is exposed, but perhaps it would be better if we can make it private... + this.update = function () { + + const offset = new Vector3(); + + // so camera.up is the orbit axis + const quat = new Quaternion().setFromUnitVectors( object.up, new Vector3( 0, 1, 0 ) ); + const quatInverse = quat.clone().invert(); + + const lastPosition = new Vector3(); + const lastQuaternion = new Quaternion(); + + const twoPI = 2 * Math.PI; + + return function update() { + + const position = scope.object.position; + + offset.copy( position ).sub( scope.target ); + + // rotate offset to "y-axis-is-up" space + offset.applyQuaternion( quat ); + + // angle from z-axis around y-axis + spherical.setFromVector3( offset ); + + if ( scope.autoRotate && state === STATE.NONE ) { + + rotateLeft( getAutoRotationAngle() ); + + } + + if ( scope.enableDamping ) { + + spherical.theta += sphericalDelta.theta * scope.dampingFactor; + spherical.phi += sphericalDelta.phi * scope.dampingFactor; + + } else { + + spherical.theta += sphericalDelta.theta; + spherical.phi += sphericalDelta.phi; + + } + + // restrict theta to be between desired limits + + let min = scope.minAzimuthAngle; + let max = scope.maxAzimuthAngle; + + if ( isFinite( min ) && isFinite( max ) ) { + + if ( min < - Math.PI ) min += twoPI; else if ( min > Math.PI ) min -= twoPI; + + if ( max < - Math.PI ) max += twoPI; else if ( max > Math.PI ) max -= twoPI; + + if ( min <= max ) { + + spherical.theta = Math.max( min, Math.min( max, spherical.theta ) ); + + } else { + + spherical.theta = ( spherical.theta > ( min + max ) / 2 ) ? + Math.max( min, spherical.theta ) : + Math.min( max, spherical.theta ); + + } + + } + + // restrict phi to be between desired limits + spherical.phi = Math.max( scope.minPolarAngle, Math.min( scope.maxPolarAngle, spherical.phi ) ); + + spherical.makeSafe(); + + + spherical.radius *= scale; + + // restrict radius to be between desired limits + spherical.radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, spherical.radius ) ); + + // move target to panned location + + if ( scope.enableDamping === true ) { + + scope.target.addScaledVector( panOffset, scope.dampingFactor ); + + } else { + + scope.target.add( panOffset ); + + } + + offset.setFromSpherical( spherical ); + + // rotate offset back to "camera-up-vector-is-up" space + offset.applyQuaternion( quatInverse ); + + position.copy( scope.target ).add( offset ); + + scope.object.lookAt( scope.target ); + + if ( scope.enableDamping === true ) { + + sphericalDelta.theta *= ( 1 - scope.dampingFactor ); + sphericalDelta.phi *= ( 1 - scope.dampingFactor ); + + panOffset.multiplyScalar( 1 - scope.dampingFactor ); + + } else { + + sphericalDelta.set( 0, 0, 0 ); + + panOffset.set( 0, 0, 0 ); + + } + + scale = 1; + + // update condition is: + // min(camera displacement, camera rotation in radians)^2 > EPS + // using small-angle approximation cos(x/2) = 1 - x^2 / 8 + + if ( zoomChanged || + lastPosition.distanceToSquared( scope.object.position ) > EPS || + 8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) { + + scope.dispatchEvent( _changeEvent ); + + lastPosition.copy( scope.object.position ); + lastQuaternion.copy( scope.object.quaternion ); + zoomChanged = false; + + return true; + + } + + return false; + + }; + + }(); + + this.dispose = function () { + + scope.domElement.removeEventListener( 'contextmenu', onContextMenu ); + + scope.domElement.removeEventListener( 'pointerdown', onPointerDown ); + scope.domElement.removeEventListener( 'pointercancel', onPointerCancel ); + scope.domElement.removeEventListener( 'wheel', onMouseWheel ); + + scope.domElement.removeEventListener( 'pointermove', onPointerMove ); + scope.domElement.removeEventListener( 'pointerup', onPointerUp ); + + + if ( scope._domElementKeyEvents !== null ) { + + scope._domElementKeyEvents.removeEventListener( 'keydown', onKeyDown ); + + } + + //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here? + + }; + + // + // internals + // + + const scope = this; + + const STATE = { + NONE: - 1, + ROTATE: 0, + DOLLY: 1, + PAN: 2, + TOUCH_ROTATE: 3, + TOUCH_PAN: 4, + TOUCH_DOLLY_PAN: 5, + TOUCH_DOLLY_ROTATE: 6 + }; + + let state = STATE.NONE; + + const EPS = 0.000001; + + // current position in spherical coordinates + const spherical = new Spherical(); + const sphericalDelta = new Spherical(); + + let scale = 1; + const panOffset = new Vector3(); + let zoomChanged = false; + + const rotateStart = new Vector2(); + const rotateEnd = new Vector2(); + const rotateDelta = new Vector2(); + + const panStart = new Vector2(); + const panEnd = new Vector2(); + const panDelta = new Vector2(); + + const dollyStart = new Vector2(); + const dollyEnd = new Vector2(); + const dollyDelta = new Vector2(); + + const pointers = []; + const pointerPositions = {}; + + function getAutoRotationAngle() { + + return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed; + + } + + function getZoomScale() { + + return Math.pow( 0.95, scope.zoomSpeed ); + + } + + function rotateLeft( angle ) { + + sphericalDelta.theta -= angle; + + } + + function rotateUp( angle ) { + + sphericalDelta.phi -= angle; + + } + + const panLeft = function () { + + const v = new Vector3(); + + return function panLeft( distance, objectMatrix ) { + + v.setFromMatrixColumn( objectMatrix, 0 ); // get X column of objectMatrix + v.multiplyScalar( - distance ); + + panOffset.add( v ); + + }; + + }(); + + const panUp = function () { + + const v = new Vector3(); + + return function panUp( distance, objectMatrix ) { + + if ( scope.screenSpacePanning === true ) { + + v.setFromMatrixColumn( objectMatrix, 1 ); + + } else { + + v.setFromMatrixColumn( objectMatrix, 0 ); + v.crossVectors( scope.object.up, v ); + + } + + v.multiplyScalar( distance ); + + panOffset.add( v ); + + }; + + }(); + + // deltaX and deltaY are in pixels; right and down are positive + const pan = function () { + + const offset = new Vector3(); + + return function pan( deltaX, deltaY ) { + + const element = scope.domElement; + + if ( scope.object.isPerspectiveCamera ) { + + // perspective + const position = scope.object.position; + offset.copy( position ).sub( scope.target ); + let targetDistance = offset.length(); + + // half of the fov is center to top of screen + targetDistance *= Math.tan( ( scope.object.fov / 2 ) * Math.PI / 180.0 ); + + // we use only clientHeight here so aspect ratio does not distort speed + panLeft( 2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix ); + panUp( 2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix ); + + } else if ( scope.object.isOrthographicCamera ) { + + // orthographic + panLeft( deltaX * ( scope.object.right - scope.object.left ) / scope.object.zoom / element.clientWidth, scope.object.matrix ); + panUp( deltaY * ( scope.object.top - scope.object.bottom ) / scope.object.zoom / element.clientHeight, scope.object.matrix ); + + } else { + + // camera neither orthographic nor perspective + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' ); + scope.enablePan = false; + + } + + }; + + }(); + + function dollyOut( dollyScale ) { + + if ( scope.object.isPerspectiveCamera ) { + + scale /= dollyScale; + + } else if ( scope.object.isOrthographicCamera ) { + + scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom * dollyScale ) ); + scope.object.updateProjectionMatrix(); + zoomChanged = true; + + } else { + + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' ); + scope.enableZoom = false; + + } + + } + + function dollyIn( dollyScale ) { + + if ( scope.object.isPerspectiveCamera ) { + + scale *= dollyScale; + + } else if ( scope.object.isOrthographicCamera ) { + + scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom / dollyScale ) ); + scope.object.updateProjectionMatrix(); + zoomChanged = true; + + } else { + + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' ); + scope.enableZoom = false; + + } + + } + + // + // event callbacks - update the object state + // + + function handleMouseDownRotate( event ) { + + rotateStart.set( event.clientX, event.clientY ); + + } + + function handleMouseDownDolly( event ) { + + dollyStart.set( event.clientX, event.clientY ); + + } + + function handleMouseDownPan( event ) { + + panStart.set( event.clientX, event.clientY ); + + } + + function handleMouseMoveRotate( event ) { + + rotateEnd.set( event.clientX, event.clientY ); + + rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed ); + + const element = scope.domElement; + + rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height + + rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight ); + + rotateStart.copy( rotateEnd ); + + scope.update(); + + } + + function handleMouseMoveDolly( event ) { + + dollyEnd.set( event.clientX, event.clientY ); + + dollyDelta.subVectors( dollyEnd, dollyStart ); + + if ( dollyDelta.y > 0 ) { + + dollyOut( getZoomScale() ); + + } else if ( dollyDelta.y < 0 ) { + + dollyIn( getZoomScale() ); + + } + + dollyStart.copy( dollyEnd ); + + scope.update(); + + } + + function handleMouseMovePan( event ) { + + panEnd.set( event.clientX, event.clientY ); + + panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed ); + + pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + scope.update(); + + } + + function handleMouseUp( /*event*/ ) { + + // no-op + + } + + function handleMouseWheel( event ) { + + if ( event.deltaY < 0 ) { + + dollyIn( getZoomScale() ); + + } else if ( event.deltaY > 0 ) { + + dollyOut( getZoomScale() ); + + } + + scope.update(); + + } + + function handleKeyDown( event ) { + + let needsUpdate = false; + + switch ( event.code ) { + + case scope.keys.UP: + pan( 0, scope.keyPanSpeed ); + needsUpdate = true; + break; + + case scope.keys.BOTTOM: + pan( 0, - scope.keyPanSpeed ); + needsUpdate = true; + break; + + case scope.keys.LEFT: + pan( scope.keyPanSpeed, 0 ); + needsUpdate = true; + break; + + case scope.keys.RIGHT: + pan( - scope.keyPanSpeed, 0 ); + needsUpdate = true; + break; + + } + + if ( needsUpdate ) { + + // prevent the browser from scrolling on cursor keys + event.preventDefault(); + + scope.update(); + + } + + + } + + function handleTouchStartRotate() { + + if ( pointers.length === 1 ) { + + rotateStart.set( pointers[ 0 ].pageX, pointers[ 0 ].pageY ); + + } else { + + const x = 0.5 * ( pointers[ 0 ].pageX + pointers[ 1 ].pageX ); + const y = 0.5 * ( pointers[ 0 ].pageY + pointers[ 1 ].pageY ); + + rotateStart.set( x, y ); + + } + + } + + function handleTouchStartPan() { + + if ( pointers.length === 1 ) { + + panStart.set( pointers[ 0 ].pageX, pointers[ 0 ].pageY ); + + } else { + + const x = 0.5 * ( pointers[ 0 ].pageX + pointers[ 1 ].pageX ); + const y = 0.5 * ( pointers[ 0 ].pageY + pointers[ 1 ].pageY ); + + panStart.set( x, y ); + + } + + } + + function handleTouchStartDolly() { + + const dx = pointers[ 0 ].pageX - pointers[ 1 ].pageX; + const dy = pointers[ 0 ].pageY - pointers[ 1 ].pageY; + + const distance = Math.sqrt( dx * dx + dy * dy ); + + dollyStart.set( 0, distance ); + + } + + function handleTouchStartDollyPan() { + + if ( scope.enableZoom ) handleTouchStartDolly(); + + if ( scope.enablePan ) handleTouchStartPan(); + + } + + function handleTouchStartDollyRotate() { + + if ( scope.enableZoom ) handleTouchStartDolly(); + + if ( scope.enableRotate ) handleTouchStartRotate(); + + } + + function handleTouchMoveRotate( event ) { + + if ( pointers.length == 1 ) { + + rotateEnd.set( event.pageX, event.pageY ); + + } else { + + const position = getSecondPointerPosition( event ); + + const x = 0.5 * ( event.pageX + position.x ); + const y = 0.5 * ( event.pageY + position.y ); + + rotateEnd.set( x, y ); + + } + + rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed ); + + const element = scope.domElement; + + rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height + + rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight ); + + rotateStart.copy( rotateEnd ); + + } + + function handleTouchMovePan( event ) { + + if ( pointers.length === 1 ) { + + panEnd.set( event.pageX, event.pageY ); + + } else { + + const position = getSecondPointerPosition( event ); + + const x = 0.5 * ( event.pageX + position.x ); + const y = 0.5 * ( event.pageY + position.y ); + + panEnd.set( x, y ); + + } + + panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed ); + + pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + } + + function handleTouchMoveDolly( event ) { + + const position = getSecondPointerPosition( event ); + + const dx = event.pageX - position.x; + const dy = event.pageY - position.y; + + const distance = Math.sqrt( dx * dx + dy * dy ); + + dollyEnd.set( 0, distance ); + + dollyDelta.set( 0, Math.pow( dollyEnd.y / dollyStart.y, scope.zoomSpeed ) ); + + dollyOut( dollyDelta.y ); + + dollyStart.copy( dollyEnd ); + + } + + function handleTouchMoveDollyPan( event ) { + + if ( scope.enableZoom ) handleTouchMoveDolly( event ); + + if ( scope.enablePan ) handleTouchMovePan( event ); + + } + + function handleTouchMoveDollyRotate( event ) { + + if ( scope.enableZoom ) handleTouchMoveDolly( event ); + + if ( scope.enableRotate ) handleTouchMoveRotate( event ); + + } + + function handleTouchEnd( /*event*/ ) { + + // no-op + + } + + // + // event handlers - FSM: listen for events and reset state + // + + function onPointerDown( event ) { + + if ( scope.enabled === false ) return; + + if ( pointers.length === 0 ) { + + scope.domElement.setPointerCapture( event.pointerId ); + + scope.domElement.addEventListener( 'pointermove', onPointerMove ); + scope.domElement.addEventListener( 'pointerup', onPointerUp ); + + } + + // + + addPointer( event ); + + if ( event.pointerType === 'touch' ) { + + onTouchStart( event ); + + } else { + + onMouseDown( event ); + + } + + } + + function onPointerMove( event ) { + + if ( scope.enabled === false ) return; + + if ( event.pointerType === 'touch' ) { + + onTouchMove( event ); + + } else { + + onMouseMove( event ); + + } + + } + + function onPointerUp( event ) { + + if ( scope.enabled === false ) return; + + if ( event.pointerType === 'touch' ) { + + onTouchEnd(); + + } else { + + onMouseUp( event ); + + } + + removePointer( event ); + + // + + if ( pointers.length === 0 ) { + + scope.domElement.releasePointerCapture( event.pointerId ); + + scope.domElement.removeEventListener( 'pointermove', onPointerMove ); + scope.domElement.removeEventListener( 'pointerup', onPointerUp ); + + } + + } + + function onPointerCancel( event ) { + + removePointer( event ); + + } + + function onMouseDown( event ) { + + let mouseAction; + + switch ( event.button ) { + + case 0: + + mouseAction = scope.mouseButtons.LEFT; + break; + + case 1: + + mouseAction = scope.mouseButtons.MIDDLE; + break; + + case 2: + + mouseAction = scope.mouseButtons.RIGHT; + break; + + default: + + mouseAction = - 1; + + } + + switch ( mouseAction ) { + + case MOUSE.DOLLY: + + if ( scope.enableZoom === false ) return; + + handleMouseDownDolly( event ); + + state = STATE.DOLLY; + + break; + + case MOUSE.ROTATE: + + if ( event.ctrlKey || event.metaKey || event.shiftKey ) { + + if ( scope.enablePan === false ) return; + + handleMouseDownPan( event ); + + state = STATE.PAN; + + } else { + + if ( scope.enableRotate === false ) return; + + handleMouseDownRotate( event ); + + state = STATE.ROTATE; + + } + + break; + + case MOUSE.PAN: + + if ( event.ctrlKey || event.metaKey || event.shiftKey ) { + + if ( scope.enableRotate === false ) return; + + handleMouseDownRotate( event ); + + state = STATE.ROTATE; + + } else { + + if ( scope.enablePan === false ) return; + + handleMouseDownPan( event ); + + state = STATE.PAN; + + } + + break; + + default: + + state = STATE.NONE; + + } + + if ( state !== STATE.NONE ) { + + scope.dispatchEvent( _startEvent ); + + } + + } + + function onMouseMove( event ) { + + if ( scope.enabled === false ) return; + + switch ( state ) { + + case STATE.ROTATE: + + if ( scope.enableRotate === false ) return; + + handleMouseMoveRotate( event ); + + break; + + case STATE.DOLLY: + + if ( scope.enableZoom === false ) return; + + handleMouseMoveDolly( event ); + + break; + + case STATE.PAN: + + if ( scope.enablePan === false ) return; + + handleMouseMovePan( event ); + + break; + + } + + } + + function onMouseUp( event ) { + + handleMouseUp( event ); + + scope.dispatchEvent( _endEvent ); + + state = STATE.NONE; + + } + + function onMouseWheel( event ) { + + if ( scope.enabled === false || scope.enableZoom === false || ( state !== STATE.NONE && state !== STATE.ROTATE ) ) return; + + event.preventDefault(); + + scope.dispatchEvent( _startEvent ); + + handleMouseWheel( event ); + + scope.dispatchEvent( _endEvent ); + + } + + function onKeyDown( event ) { + + if ( scope.enabled === false || scope.enablePan === false ) return; + + handleKeyDown( event ); + + } + + function onTouchStart( event ) { + + trackPointer( event ); + + switch ( pointers.length ) { + + case 1: + + switch ( scope.touches.ONE ) { + + case TOUCH.ROTATE: + + if ( scope.enableRotate === false ) return; + + handleTouchStartRotate(); + + state = STATE.TOUCH_ROTATE; + + break; + + case TOUCH.PAN: + + if ( scope.enablePan === false ) return; + + handleTouchStartPan(); + + state = STATE.TOUCH_PAN; + + break; + + default: + + state = STATE.NONE; + + } + + break; + + case 2: + + switch ( scope.touches.TWO ) { + + case TOUCH.DOLLY_PAN: + + if ( scope.enableZoom === false && scope.enablePan === false ) return; + + handleTouchStartDollyPan(); + + state = STATE.TOUCH_DOLLY_PAN; + + break; + + case TOUCH.DOLLY_ROTATE: + + if ( scope.enableZoom === false && scope.enableRotate === false ) return; + + handleTouchStartDollyRotate(); + + state = STATE.TOUCH_DOLLY_ROTATE; + + break; + + default: + + state = STATE.NONE; + + } + + break; + + default: + + state = STATE.NONE; + + } + + if ( state !== STATE.NONE ) { + + scope.dispatchEvent( _startEvent ); + + } + + } + + function onTouchMove( event ) { + + trackPointer( event ); + + switch ( state ) { + + case STATE.TOUCH_ROTATE: + + if ( scope.enableRotate === false ) return; + + handleTouchMoveRotate( event ); + + scope.update(); + + break; + + case STATE.TOUCH_PAN: + + if ( scope.enablePan === false ) return; + + handleTouchMovePan( event ); + + scope.update(); + + break; + + case STATE.TOUCH_DOLLY_PAN: + + if ( scope.enableZoom === false && scope.enablePan === false ) return; + + handleTouchMoveDollyPan( event ); + + scope.update(); + + break; + + case STATE.TOUCH_DOLLY_ROTATE: + + if ( scope.enableZoom === false && scope.enableRotate === false ) return; + + handleTouchMoveDollyRotate( event ); + + scope.update(); + + break; + + default: + + state = STATE.NONE; + + } + + } + + function onTouchEnd( event ) { + + handleTouchEnd( event ); + + scope.dispatchEvent( _endEvent ); + + state = STATE.NONE; + + } + + function onContextMenu( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + + } + + function addPointer( event ) { + + pointers.push( event ); + + } + + function removePointer( event ) { + + delete pointerPositions[ event.pointerId ]; + + for ( let i = 0; i < pointers.length; i ++ ) { + + if ( pointers[ i ].pointerId == event.pointerId ) { + + pointers.splice( i, 1 ); + return; + + } + + } + + } + + function trackPointer( event ) { + + let position = pointerPositions[ event.pointerId ]; + + if ( position === undefined ) { + + position = new Vector2(); + pointerPositions[ event.pointerId ] = position; + + } + + position.set( event.pageX, event.pageY ); + + } + + function getSecondPointerPosition( event ) { + + const pointer = ( event.pointerId === pointers[ 0 ].pointerId ) ? pointers[ 1 ] : pointers[ 0 ]; + + return pointerPositions[ pointer.pointerId ]; + + } + + // + + scope.domElement.addEventListener( 'contextmenu', onContextMenu ); + + scope.domElement.addEventListener( 'pointerdown', onPointerDown ); + scope.domElement.addEventListener( 'pointercancel', onPointerCancel ); + scope.domElement.addEventListener( 'wheel', onMouseWheel, { passive: false } ); + + // force an update at start + + this.update(); + + } + +} + + +// This set of controls performs orbiting, dollying (zooming), and panning. +// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default). +// This is very similar to OrbitControls, another set of touch behavior +// +// Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate +// Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish +// Pan - left mouse, or arrow keys / touch: one-finger move + +class MapControls extends OrbitControls { + + constructor( object, domElement ) { + + super( object, domElement ); + + this.screenSpacePanning = false; // pan orthogonal to world-space direction camera.up + + this.mouseButtons.LEFT = MOUSE.PAN; + this.mouseButtons.RIGHT = MOUSE.ROTATE; + + this.touches.ONE = TOUCH.PAN; + this.touches.TWO = TOUCH.DOLLY_ROTATE; + + } + +} + +export { OrbitControls, MapControls }; diff --git a/public/three/examples/jsm/controls/Water.js b/public/three/examples/jsm/controls/Water.js new file mode 100644 index 0000000..1c72a03 --- /dev/null +++ b/public/three/examples/jsm/controls/Water.js @@ -0,0 +1,344 @@ +import { + Color, + FrontSide, + LinearFilter, + MathUtils, + Matrix4, + Mesh, + PerspectiveCamera, + Plane, + RGBFormat, + ShaderMaterial, + UniformsLib, + UniformsUtils, + Vector3, + Vector4, + WebGLRenderTarget +} from '../../../build/three.module.js'; + +/** + * Work based on : + * http://slayvin.net : Flat mirror for three.js + * http://www.adelphi.edu/~stemkoski : An implementation of water shader based on the flat mirror + * http://29a.ch/ && http://29a.ch/slides/2012/webglwater/ : Water shader explanations in WebGL + */ + +class Water extends Mesh { + + constructor( geometry, options = {} ) { + + super( geometry ); + + const scope = this; + + const textureWidth = options.textureWidth !== undefined ? options.textureWidth : 512; + const textureHeight = options.textureHeight !== undefined ? options.textureHeight : 512; + + const clipBias = options.clipBias !== undefined ? options.clipBias : 0.0; + const alpha = options.alpha !== undefined ? options.alpha : 1.0; + const time = options.time !== undefined ? options.time : 0.0; + const normalSampler = options.waterNormals !== undefined ? options.waterNormals : null; + const sunDirection = options.sunDirection !== undefined ? options.sunDirection : new Vector3( 0.70707, 0.70707, 0.0 ); + const sunColor = new Color( options.sunColor !== undefined ? options.sunColor : 0xffffff ); + const waterColor = new Color( options.waterColor !== undefined ? options.waterColor : 0x7F7F7F ); + const eye = options.eye !== undefined ? options.eye : new Vector3( 0, 0, 0 ); + const distortionScale = options.distortionScale !== undefined ? options.distortionScale : 20.0; + const side = options.side !== undefined ? options.side : FrontSide; + const fog = options.fog !== undefined ? options.fog : false; + + // + + const mirrorPlane = new Plane(); + const normal = new Vector3(); + const mirrorWorldPosition = new Vector3(); + const cameraWorldPosition = new Vector3(); + const rotationMatrix = new Matrix4(); + const lookAtPosition = new Vector3( 0, 0, - 1 ); + const clipPlane = new Vector4(); + + const view = new Vector3(); + const target = new Vector3(); + const q = new Vector4(); + + const textureMatrix = new Matrix4(); + + const mirrorCamera = new PerspectiveCamera(); + + const parameters = { + minFilter: LinearFilter, + magFilter: LinearFilter, + format: RGBFormat + }; + + const renderTarget = new WebGLRenderTarget( textureWidth, textureHeight, parameters ); + + if ( ! MathUtils.isPowerOfTwo( textureWidth ) || ! MathUtils.isPowerOfTwo( textureHeight ) ) { + + renderTarget.texture.generateMipmaps = false; + + } + + const mirrorShader = { + + uniforms: UniformsUtils.merge( [ + UniformsLib[ 'fog' ], + UniformsLib[ 'lights' ], + { + 'normalSampler': { value: null }, + 'mirrorSampler': { value: null }, + 'alpha': { value: 1.0 }, + 'time': { value: 0.0 }, + 'size': { value: 1.0 }, + 'distortionScale': { value: 20.0 }, + 'textureMatrix': { value: new Matrix4() }, + 'sunColor': { value: new Color( 0x7F7F7F ) }, + 'sunDirection': { value: new Vector3( 0.70707, 0.70707, 0 ) }, + 'eye': { value: new Vector3() }, + 'waterColor': { value: new Color( 0x555555 ) } + } + ] ), + + vertexShader: /* glsl */` + uniform mat4 textureMatrix; + uniform float time; + + varying vec4 mirrorCoord; + varying vec4 worldPosition; + + #include + #include + #include + #include + + void main() { + mirrorCoord = modelMatrix * vec4( position, 1.0 ); + worldPosition = mirrorCoord.xyzw; + mirrorCoord = textureMatrix * mirrorCoord; + vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 ); + gl_Position = projectionMatrix * mvPosition; + + #include + #include + #include + #include + #include + }`, + + fragmentShader: /* glsl */` + uniform sampler2D mirrorSampler; + uniform float alpha; + uniform float time; + uniform float size; + uniform float distortionScale; + uniform sampler2D normalSampler; + uniform vec3 sunColor; + uniform vec3 sunDirection; + uniform vec3 eye; + uniform vec3 waterColor; + + varying vec4 mirrorCoord; + varying vec4 worldPosition; + + vec4 getNoise( vec2 uv ) { + vec2 uv0 = ( uv / 103.0 ) + vec2(time / 17.0, time / 29.0); + vec2 uv1 = uv / 107.0-vec2( time / -19.0, time / 31.0 ); + vec2 uv2 = uv / vec2( 8907.0, 9803.0 ) + vec2( time / 101.0, time / 97.0 ); + vec2 uv3 = uv / vec2( 1091.0, 1027.0 ) - vec2( time / 109.0, time / -113.0 ); + vec4 noise = texture2D( normalSampler, uv0 ) + + texture2D( normalSampler, uv1 ) + + texture2D( normalSampler, uv2 ) + + texture2D( normalSampler, uv3 ); + return noise * 0.5 - 1.0; + } + + void sunLight( const vec3 surfaceNormal, const vec3 eyeDirection, float shiny, float spec, float diffuse, inout vec3 diffuseColor, inout vec3 specularColor ) { + vec3 reflection = normalize( reflect( -sunDirection, surfaceNormal ) ); + float direction = max( 0.0, dot( eyeDirection, reflection ) ); + specularColor += pow( direction, shiny ) * sunColor * spec; + diffuseColor += max( dot( sunDirection, surfaceNormal ), 0.0 ) * sunColor * diffuse; + } + + #include + #include + #include + #include + #include + #include + #include + #include + + void main() { + + #include + vec4 noise = getNoise( worldPosition.xz * size ); + vec3 surfaceNormal = normalize( noise.xzy * vec3( 1.5, 1.0, 1.5 ) ); + + vec3 diffuseLight = vec3(0.0); + vec3 specularLight = vec3(0.0); + + vec3 worldToEye = eye-worldPosition.xyz; + vec3 eyeDirection = normalize( worldToEye ); + sunLight( surfaceNormal, eyeDirection, 100.0, 2.0, 0.5, diffuseLight, specularLight ); + + float distance = length(worldToEye); + + vec2 distortion = surfaceNormal.xz * ( 0.001 + 1.0 / distance ) * distortionScale; + vec3 reflectionSample = vec3( texture2D( mirrorSampler, mirrorCoord.xy / mirrorCoord.w + distortion ) ); + + float theta = max( dot( eyeDirection, surfaceNormal ), 0.0 ); + float rf0 = 0.3; + float reflectance = rf0 + ( 1.0 - rf0 ) * pow( ( 1.0 - theta ), 5.0 ); + vec3 scatter = max( 0.0, dot( surfaceNormal, eyeDirection ) ) * waterColor; + vec3 albedo = mix( ( sunColor * diffuseLight * 0.3 + scatter ) * getShadowMask(), ( vec3( 0.1 ) + reflectionSample * 0.9 + reflectionSample * specularLight ), reflectance); + vec3 outgoingLight = albedo; + gl_FragColor = vec4( outgoingLight, alpha ); + + #include + #include + }` + + }; + + const material = new ShaderMaterial( { + fragmentShader: mirrorShader.fragmentShader, + vertexShader: mirrorShader.vertexShader, + uniforms: UniformsUtils.clone( mirrorShader.uniforms ), + lights: true, + side: side, + fog: fog + } ); + + material.uniforms[ 'mirrorSampler' ].value = renderTarget.texture; + material.uniforms[ 'textureMatrix' ].value = textureMatrix; + material.uniforms[ 'alpha' ].value = alpha; + material.uniforms[ 'time' ].value = time; + material.uniforms[ 'normalSampler' ].value = normalSampler; + material.uniforms[ 'sunColor' ].value = sunColor; + material.uniforms[ 'waterColor' ].value = waterColor; + material.uniforms[ 'sunDirection' ].value = sunDirection; + material.uniforms[ 'distortionScale' ].value = distortionScale; + + material.uniforms[ 'eye' ].value = eye; + + scope.material = material; + + scope.onBeforeRender = function ( renderer, scene, camera ) { + + mirrorWorldPosition.setFromMatrixPosition( scope.matrixWorld ); + cameraWorldPosition.setFromMatrixPosition( camera.matrixWorld ); + + rotationMatrix.extractRotation( scope.matrixWorld ); + + normal.set( 0, 0, 1 ); + normal.applyMatrix4( rotationMatrix ); + + view.subVectors( mirrorWorldPosition, cameraWorldPosition ); + + // Avoid rendering when mirror is facing away + + if ( view.dot( normal ) > 0 ) return; + + view.reflect( normal ).negate(); + view.add( mirrorWorldPosition ); + + rotationMatrix.extractRotation( camera.matrixWorld ); + + lookAtPosition.set( 0, 0, - 1 ); + lookAtPosition.applyMatrix4( rotationMatrix ); + lookAtPosition.add( cameraWorldPosition ); + + target.subVectors( mirrorWorldPosition, lookAtPosition ); + target.reflect( normal ).negate(); + target.add( mirrorWorldPosition ); + + mirrorCamera.position.copy( view ); + mirrorCamera.up.set( 0, 1, 0 ); + mirrorCamera.up.applyMatrix4( rotationMatrix ); + mirrorCamera.up.reflect( normal ); + mirrorCamera.lookAt( target ); + + mirrorCamera.far = camera.far; // Used in WebGLBackground + + mirrorCamera.updateMatrixWorld(); + mirrorCamera.projectionMatrix.copy( camera.projectionMatrix ); + + // Update the texture matrix + textureMatrix.set( + 0.5, 0.0, 0.0, 0.5, + 0.0, 0.5, 0.0, 0.5, + 0.0, 0.0, 0.5, 0.5, + 0.0, 0.0, 0.0, 1.0 + ); + textureMatrix.multiply( mirrorCamera.projectionMatrix ); + textureMatrix.multiply( mirrorCamera.matrixWorldInverse ); + + // Now update projection matrix with new clip plane, implementing code from: http://www.terathon.com/code/oblique.html + // Paper explaining this technique: http://www.terathon.com/lengyel/Lengyel-Oblique.pdf + mirrorPlane.setFromNormalAndCoplanarPoint( normal, mirrorWorldPosition ); + mirrorPlane.applyMatrix4( mirrorCamera.matrixWorldInverse ); + + clipPlane.set( mirrorPlane.normal.x, mirrorPlane.normal.y, mirrorPlane.normal.z, mirrorPlane.constant ); + + const projectionMatrix = mirrorCamera.projectionMatrix; + + q.x = ( Math.sign( clipPlane.x ) + projectionMatrix.elements[ 8 ] ) / projectionMatrix.elements[ 0 ]; + q.y = ( Math.sign( clipPlane.y ) + projectionMatrix.elements[ 9 ] ) / projectionMatrix.elements[ 5 ]; + q.z = - 1.0; + q.w = ( 1.0 + projectionMatrix.elements[ 10 ] ) / projectionMatrix.elements[ 14 ]; + + // Calculate the scaled plane vector + clipPlane.multiplyScalar( 2.0 / clipPlane.dot( q ) ); + + // Replacing the third row of the projection matrix + projectionMatrix.elements[ 2 ] = clipPlane.x; + projectionMatrix.elements[ 6 ] = clipPlane.y; + projectionMatrix.elements[ 10 ] = clipPlane.z + 1.0 - clipBias; + projectionMatrix.elements[ 14 ] = clipPlane.w; + + eye.setFromMatrixPosition( camera.matrixWorld ); + + // Render + + const currentRenderTarget = renderer.getRenderTarget(); + + const currentXrEnabled = renderer.xr.enabled; + const currentShadowAutoUpdate = renderer.shadowMap.autoUpdate; + + scope.visible = false; + + renderer.xr.enabled = false; // Avoid camera modification and recursion + renderer.shadowMap.autoUpdate = false; // Avoid re-computing shadows + + renderer.setRenderTarget( renderTarget ); + + renderer.state.buffers.depth.setMask( true ); // make sure the depth buffer is writable so it can be properly cleared, see #18897 + + if ( renderer.autoClear === false ) renderer.clear(); + renderer.render( scene, mirrorCamera ); + + scope.visible = true; + + renderer.xr.enabled = currentXrEnabled; + renderer.shadowMap.autoUpdate = currentShadowAutoUpdate; + + renderer.setRenderTarget( currentRenderTarget ); + + // Restore viewport + + const viewport = camera.viewport; + + if ( viewport !== undefined ) { + + renderer.state.viewport( viewport ); + + } + + }; + + } + +} + +Water.prototype.isWater = true; + +export { Water }; diff --git a/public/three/examples/jsm/controls/experimental/CameraControls.js b/public/three/examples/jsm/controls/experimental/CameraControls.js new file mode 100644 index 0000000..f4514f1 --- /dev/null +++ b/public/three/examples/jsm/controls/experimental/CameraControls.js @@ -0,0 +1,1248 @@ +import { + EventDispatcher, + MOUSE, + Quaternion, + Spherical, + TOUCH, + Vector2, + Vector3 +} from '../../../../build/three.module.js'; + +var CameraControls = function ( object, domElement ) { + + if ( domElement === undefined ) console.warn( 'THREE.CameraControls: The second parameter "domElement" is now mandatory.' ); + if ( domElement === document ) console.error( 'THREE.CameraControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.' ); + + this.object = object; + this.domElement = domElement; + + // Set to false to disable this control + this.enabled = true; + + // "target" sets the location of focus, where the object orbits around + this.target = new Vector3(); + + // Set to true to enable trackball behavior + this.trackball = false; + + // How far you can dolly in and out ( PerspectiveCamera only ) + this.minDistance = 0; + this.maxDistance = Infinity; + + // How far you can zoom in and out ( OrthographicCamera only ) + this.minZoom = 0; + this.maxZoom = Infinity; + + // How far you can orbit vertically, upper and lower limits. + // Range is 0 to Math.PI radians. + this.minPolarAngle = 0; // radians + this.maxPolarAngle = Math.PI; // radians + + // How far you can orbit horizontally, upper and lower limits. + // If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ]. + this.minAzimuthAngle = - Infinity; // radians + this.maxAzimuthAngle = Infinity; // radians + + // Set to true to enable damping (inertia) + // If damping is enabled, you must call controls.update() in your animation loop + this.enableDamping = false; + this.dampingFactor = 0.05; + + // This option enables dollying in and out; property named as "zoom" for backwards compatibility + // Set to false to disable zooming + this.enableZoom = true; + this.zoomSpeed = 1.0; + + // Set to false to disable rotating + this.enableRotate = true; + this.rotateSpeed = 1.0; + + // Set to false to disable panning + this.enablePan = true; + this.panSpeed = 1.0; + this.screenSpacePanning = false; // if true, pan in screen-space + this.keyPanSpeed = 7.0; // pixels moved per arrow key push + + // Set to true to automatically rotate around the target + // If auto-rotate is enabled, you must call controls.update() in your animation loop + // auto-rotate is not supported for trackball behavior + this.autoRotate = false; + this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60 + + // Set to false to disable use of the keys + this.enableKeys = true; + + // The four arrow keys + this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 }; + + // Mouse buttons + this.mouseButtons = { LEFT: MOUSE.ROTATE, MIDDLE: MOUSE.DOLLY, RIGHT: MOUSE.PAN }; + + // Touch fingers + this.touches = { ONE: TOUCH.ROTATE, TWO: TOUCH.DOLLY_PAN }; + + // for reset + this.target0 = this.target.clone(); + this.position0 = this.object.position.clone(); + this.quaternion0 = this.object.quaternion.clone(); + this.zoom0 = this.object.zoom; + + // + // public methods + // + + this.getPolarAngle = function () { + + return spherical.phi; + + }; + + this.getAzimuthalAngle = function () { + + return spherical.theta; + + }; + + this.saveState = function () { + + scope.target0.copy( scope.target ); + scope.position0.copy( scope.object.position ); + scope.quaternion0.copy( scope.object.quaternion ); + scope.zoom0 = scope.object.zoom; + + }; + + this.reset = function () { + + scope.target.copy( scope.target0 ); + scope.object.position.copy( scope.position0 ); + scope.object.quaternion.copy( scope.quaternion0 ); + scope.object.zoom = scope.zoom0; + + scope.object.updateProjectionMatrix(); + scope.dispatchEvent( changeEvent ); + + scope.update(); + + state = STATE.NONE; + + }; + + // this method is exposed, but perhaps it would be better if we can make it private... + this.update = function () { + + var offset = new Vector3(); + + // so camera.up is the orbit axis + var quat = new Quaternion().setFromUnitVectors( object.up, new Vector3( 0, 1, 0 ) ); + var quatInverse = quat.clone().invert(); + + var lastPosition = new Vector3(); + var lastQuaternion = new Quaternion(); + + var q = new Quaternion(); + var vec = new Vector3(); + + return function update() { + + var position = scope.object.position; + + offset.copy( position ).sub( scope.target ); + + if ( scope.trackball ) { + + // rotate around screen-space y-axis + + if ( sphericalDelta.theta ) { + + vec.set( 0, 1, 0 ).applyQuaternion( scope.object.quaternion ); + + var factor = ( scope.enableDamping ) ? scope.dampingFactor : 1; + + q.setFromAxisAngle( vec, sphericalDelta.theta * factor ); + + scope.object.quaternion.premultiply( q ); + offset.applyQuaternion( q ); + + } + + // rotate around screen-space x-axis + + if ( sphericalDelta.phi ) { + + vec.set( 1, 0, 0 ).applyQuaternion( scope.object.quaternion ); + + var factor = ( scope.enableDamping ) ? scope.dampingFactor : 1; + + q.setFromAxisAngle( vec, sphericalDelta.phi * factor ); + + scope.object.quaternion.premultiply( q ); + offset.applyQuaternion( q ); + + } + + offset.multiplyScalar( scale ); + offset.clampLength( scope.minDistance, scope.maxDistance ); + + } else { + + // rotate offset to "y-axis-is-up" space + offset.applyQuaternion( quat ); + + if ( scope.autoRotate && state === STATE.NONE ) { + + rotateLeft( getAutoRotationAngle() ); + + } + + spherical.setFromVector3( offset ); + + if ( scope.enableDamping ) { + + spherical.theta += sphericalDelta.theta * scope.dampingFactor; + spherical.phi += sphericalDelta.phi * scope.dampingFactor; + + } else { + + spherical.theta += sphericalDelta.theta; + spherical.phi += sphericalDelta.phi; + + } + + // restrict theta to be between desired limits + spherical.theta = Math.max( scope.minAzimuthAngle, Math.min( scope.maxAzimuthAngle, spherical.theta ) ); + + // restrict phi to be between desired limits + spherical.phi = Math.max( scope.minPolarAngle, Math.min( scope.maxPolarAngle, spherical.phi ) ); + + spherical.makeSafe(); + + spherical.radius *= scale; + + // restrict radius to be between desired limits + spherical.radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, spherical.radius ) ); + + offset.setFromSpherical( spherical ); + + // rotate offset back to "camera-up-vector-is-up" space + offset.applyQuaternion( quatInverse ); + + } + + // move target to panned location + + if ( scope.enableDamping === true ) { + + scope.target.addScaledVector( panOffset, scope.dampingFactor ); + + } else { + + scope.target.add( panOffset ); + + } + + position.copy( scope.target ).add( offset ); + + if ( scope.trackball === false ) { + + scope.object.lookAt( scope.target ); + + } + + if ( scope.enableDamping === true ) { + + sphericalDelta.theta *= ( 1 - scope.dampingFactor ); + sphericalDelta.phi *= ( 1 - scope.dampingFactor ); + + panOffset.multiplyScalar( 1 - scope.dampingFactor ); + + } else { + + sphericalDelta.set( 0, 0, 0 ); + + panOffset.set( 0, 0, 0 ); + + } + + scale = 1; + + // update condition is: + // min(camera displacement, camera rotation in radians)^2 > EPS + // using small-angle approximation cos(x/2) = 1 - x^2 / 8 + + if ( zoomChanged || + lastPosition.distanceToSquared( scope.object.position ) > EPS || + 8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) { + + scope.dispatchEvent( changeEvent ); + + lastPosition.copy( scope.object.position ); + lastQuaternion.copy( scope.object.quaternion ); + zoomChanged = false; + + return true; + + } + + return false; + + }; + + }(); + + this.dispose = function () { + + scope.domElement.removeEventListener( 'contextmenu', onContextMenu, false ); + scope.domElement.removeEventListener( 'mousedown', onMouseDown, false ); + scope.domElement.removeEventListener( 'wheel', onMouseWheel, false ); + + scope.domElement.removeEventListener( 'touchstart', onTouchStart, false ); + scope.domElement.removeEventListener( 'touchend', onTouchEnd, false ); + scope.domElement.removeEventListener( 'touchmove', onTouchMove, false ); + + document.removeEventListener( 'mousemove', onMouseMove, false ); + document.removeEventListener( 'mouseup', onMouseUp, false ); + + scope.domElement.removeEventListener( 'keydown', onKeyDown, false ); + + //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here? + + }; + + // + // internals + // + + var scope = this; + + var changeEvent = { type: 'change' }; + var startEvent = { type: 'start' }; + var endEvent = { type: 'end' }; + + var STATE = { + NONE: - 1, + ROTATE: 0, + DOLLY: 1, + PAN: 2, + TOUCH_ROTATE: 3, + TOUCH_PAN: 4, + TOUCH_DOLLY_PAN: 5, + TOUCH_DOLLY_ROTATE: 6 + }; + + var state = STATE.NONE; + + var EPS = 0.000001; + + // current position in spherical coordinates + var spherical = new Spherical(); + var sphericalDelta = new Spherical(); + + var scale = 1; + var panOffset = new Vector3(); + var zoomChanged = false; + + var rotateStart = new Vector2(); + var rotateEnd = new Vector2(); + var rotateDelta = new Vector2(); + + var panStart = new Vector2(); + var panEnd = new Vector2(); + var panDelta = new Vector2(); + + var dollyStart = new Vector2(); + var dollyEnd = new Vector2(); + var dollyDelta = new Vector2(); + + function getAutoRotationAngle() { + + return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed; + + } + + function getZoomScale() { + + return Math.pow( 0.95, scope.zoomSpeed ); + + } + + function rotateLeft( angle ) { + + sphericalDelta.theta -= angle; + + } + + function rotateUp( angle ) { + + sphericalDelta.phi -= angle; + + } + + var panLeft = function () { + + var v = new Vector3(); + + return function panLeft( distance, objectMatrix ) { + + v.setFromMatrixColumn( objectMatrix, 0 ); // get X column of objectMatrix + v.multiplyScalar( - distance ); + + panOffset.add( v ); + + }; + + }(); + + var panUp = function () { + + var v = new Vector3(); + + return function panUp( distance, objectMatrix ) { + + if ( scope.screenSpacePanning === true ) { + + v.setFromMatrixColumn( objectMatrix, 1 ); + + } else { + + v.setFromMatrixColumn( objectMatrix, 0 ); + v.crossVectors( scope.object.up, v ); + + } + + v.multiplyScalar( distance ); + + panOffset.add( v ); + + }; + + }(); + + // deltaX and deltaY are in pixels; right and down are positive + var pan = function () { + + var offset = new Vector3(); + + return function pan( deltaX, deltaY ) { + + var element = scope.domElement; + + if ( scope.object.isPerspectiveCamera ) { + + // perspective + var position = scope.object.position; + offset.copy( position ).sub( scope.target ); + var targetDistance = offset.length(); + + // half of the fov is center to top of screen + targetDistance *= Math.tan( ( scope.object.fov / 2 ) * Math.PI / 180.0 ); + + // we use only clientHeight here so aspect ratio does not distort speed + panLeft( 2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix ); + panUp( 2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix ); + + } else if ( scope.object.isOrthographicCamera ) { + + // orthographic + panLeft( deltaX * ( scope.object.right - scope.object.left ) / scope.object.zoom / element.clientWidth, scope.object.matrix ); + panUp( deltaY * ( scope.object.top - scope.object.bottom ) / scope.object.zoom / element.clientHeight, scope.object.matrix ); + + } else { + + // camera neither orthographic nor perspective + console.warn( 'WARNING: CameraControls.js encountered an unknown camera type - pan disabled.' ); + scope.enablePan = false; + + } + + }; + + }(); + + function dollyIn( dollyScale ) { + + if ( scope.object.isPerspectiveCamera ) { + + scale /= dollyScale; + + } else if ( scope.object.isOrthographicCamera ) { + + scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom * dollyScale ) ); + scope.object.updateProjectionMatrix(); + zoomChanged = true; + + } else { + + console.warn( 'WARNING: CameraControls.js encountered an unknown camera type - dolly/zoom disabled.' ); + scope.enableZoom = false; + + } + + } + + function dollyOut( dollyScale ) { + + if ( scope.object.isPerspectiveCamera ) { + + scale *= dollyScale; + + } else if ( scope.object.isOrthographicCamera ) { + + scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom / dollyScale ) ); + scope.object.updateProjectionMatrix(); + zoomChanged = true; + + } else { + + console.warn( 'WARNING: CameraControls.js encountered an unknown camera type - dolly/zoom disabled.' ); + scope.enableZoom = false; + + } + + } + + // + // event callbacks - update the object state + // + + function handleMouseDownRotate( event ) { + + rotateStart.set( event.clientX, event.clientY ); + + } + + function handleMouseDownDolly( event ) { + + dollyStart.set( event.clientX, event.clientY ); + + } + + function handleMouseDownPan( event ) { + + panStart.set( event.clientX, event.clientY ); + + } + + function handleMouseMoveRotate( event ) { + + rotateEnd.set( event.clientX, event.clientY ); + + rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed ); + + var element = scope.domElement; + + rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height + + rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight ); + + rotateStart.copy( rotateEnd ); + + scope.update(); + + } + + function handleMouseMoveDolly( event ) { + + dollyEnd.set( event.clientX, event.clientY ); + + dollyDelta.subVectors( dollyEnd, dollyStart ); + + if ( dollyDelta.y > 0 ) { + + dollyIn( getZoomScale() ); + + } else if ( dollyDelta.y < 0 ) { + + dollyOut( getZoomScale() ); + + } + + dollyStart.copy( dollyEnd ); + + scope.update(); + + } + + function handleMouseMovePan( event ) { + + panEnd.set( event.clientX, event.clientY ); + + panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed ); + + pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + scope.update(); + + } + + function handleMouseUp( /*event*/ ) { + + // no-op + + } + + function handleMouseWheel( event ) { + + if ( event.deltaY < 0 ) { + + dollyOut( getZoomScale() ); + + } else if ( event.deltaY > 0 ) { + + dollyIn( getZoomScale() ); + + } + + scope.update(); + + } + + function handleKeyDown( event ) { + + var needsUpdate = false; + + switch ( event.keyCode ) { + + case scope.keys.UP: + pan( 0, scope.keyPanSpeed ); + needsUpdate = true; + break; + + case scope.keys.BOTTOM: + pan( 0, - scope.keyPanSpeed ); + needsUpdate = true; + break; + + case scope.keys.LEFT: + pan( scope.keyPanSpeed, 0 ); + needsUpdate = true; + break; + + case scope.keys.RIGHT: + pan( - scope.keyPanSpeed, 0 ); + needsUpdate = true; + break; + + } + + if ( needsUpdate ) { + + // prevent the browser from scrolling on cursor keys + event.preventDefault(); + + scope.update(); + + } + + + } + + function handleTouchStartRotate( event ) { + + if ( event.touches.length == 1 ) { + + rotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } else { + + var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ); + var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ); + + rotateStart.set( x, y ); + + } + + } + + function handleTouchStartPan( event ) { + + if ( event.touches.length == 1 ) { + + panStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } else { + + var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ); + var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ); + + panStart.set( x, y ); + + } + + } + + function handleTouchStartDolly( event ) { + + var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX; + var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY; + + var distance = Math.sqrt( dx * dx + dy * dy ); + + dollyStart.set( 0, distance ); + + } + + function handleTouchStartDollyPan( event ) { + + if ( scope.enableZoom ) handleTouchStartDolly( event ); + + if ( scope.enablePan ) handleTouchStartPan( event ); + + } + + function handleTouchStartDollyRotate( event ) { + + if ( scope.enableZoom ) handleTouchStartDolly( event ); + + if ( scope.enableRotate ) handleTouchStartRotate( event ); + + } + + function handleTouchMoveRotate( event ) { + + if ( event.touches.length == 1 ) { + + rotateEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } else { + + var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ); + var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ); + + rotateEnd.set( x, y ); + + } + + rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed ); + + var element = scope.domElement; + + rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height + + rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight ); + + rotateStart.copy( rotateEnd ); + + } + + function handleTouchMovePan( event ) { + + if ( event.touches.length == 1 ) { + + panEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } else { + + var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ); + var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ); + + panEnd.set( x, y ); + + } + + panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed ); + + pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + } + + function handleTouchMoveDolly( event ) { + + var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX; + var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY; + + var distance = Math.sqrt( dx * dx + dy * dy ); + + dollyEnd.set( 0, distance ); + + dollyDelta.set( 0, Math.pow( dollyEnd.y / dollyStart.y, scope.zoomSpeed ) ); + + dollyIn( dollyDelta.y ); + + dollyStart.copy( dollyEnd ); + + } + + function handleTouchMoveDollyPan( event ) { + + if ( scope.enableZoom ) handleTouchMoveDolly( event ); + + if ( scope.enablePan ) handleTouchMovePan( event ); + + } + + function handleTouchMoveDollyRotate( event ) { + + if ( scope.enableZoom ) handleTouchMoveDolly( event ); + + if ( scope.enableRotate ) handleTouchMoveRotate( event ); + + } + + function handleTouchEnd( /*event*/ ) { + + // no-op + + } + + // + // event handlers - FSM: listen for events and reset state + // + + function onMouseDown( event ) { + + if ( scope.enabled === false ) return; + + // Prevent the browser from scrolling. + + event.preventDefault(); + + // Manually set the focus since calling preventDefault above + // prevents the browser from setting it automatically. + + scope.domElement.focus ? scope.domElement.focus() : window.focus(); + + var mouseAction; + + switch ( event.button ) { + + case 0: + + mouseAction = scope.mouseButtons.LEFT; + break; + + case 1: + + mouseAction = scope.mouseButtons.MIDDLE; + break; + + case 2: + + mouseAction = scope.mouseButtons.RIGHT; + break; + + default: + + mouseAction = - 1; + + } + + switch ( mouseAction ) { + + case MOUSE.DOLLY: + + if ( scope.enableZoom === false ) return; + + handleMouseDownDolly( event ); + + state = STATE.DOLLY; + + break; + + case MOUSE.ROTATE: + + if ( event.ctrlKey || event.metaKey || event.shiftKey ) { + + if ( scope.enablePan === false ) return; + + handleMouseDownPan( event ); + + state = STATE.PAN; + + } else { + + if ( scope.enableRotate === false ) return; + + handleMouseDownRotate( event ); + + state = STATE.ROTATE; + + } + + break; + + case MOUSE.PAN: + + if ( event.ctrlKey || event.metaKey || event.shiftKey ) { + + if ( scope.enableRotate === false ) return; + + handleMouseDownRotate( event ); + + state = STATE.ROTATE; + + } else { + + if ( scope.enablePan === false ) return; + + handleMouseDownPan( event ); + + state = STATE.PAN; + + } + + break; + + default: + + state = STATE.NONE; + + } + + if ( state !== STATE.NONE ) { + + document.addEventListener( 'mousemove', onMouseMove, false ); + document.addEventListener( 'mouseup', onMouseUp, false ); + + scope.dispatchEvent( startEvent ); + + } + + } + + function onMouseMove( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + + switch ( state ) { + + case STATE.ROTATE: + + if ( scope.enableRotate === false ) return; + + handleMouseMoveRotate( event ); + + break; + + case STATE.DOLLY: + + if ( scope.enableZoom === false ) return; + + handleMouseMoveDolly( event ); + + break; + + case STATE.PAN: + + if ( scope.enablePan === false ) return; + + handleMouseMovePan( event ); + + break; + + } + + } + + function onMouseUp( event ) { + + if ( scope.enabled === false ) return; + + handleMouseUp( event ); + + document.removeEventListener( 'mousemove', onMouseMove, false ); + document.removeEventListener( 'mouseup', onMouseUp, false ); + + scope.dispatchEvent( endEvent ); + + state = STATE.NONE; + + } + + function onMouseWheel( event ) { + + if ( scope.enabled === false || scope.enableZoom === false || ( state !== STATE.NONE && state !== STATE.ROTATE ) ) return; + + event.preventDefault(); + event.stopPropagation(); + + scope.dispatchEvent( startEvent ); + + handleMouseWheel( event ); + + scope.dispatchEvent( endEvent ); + + } + + function onKeyDown( event ) { + + if ( scope.enabled === false || scope.enableKeys === false || scope.enablePan === false ) return; + + handleKeyDown( event ); + + } + + function onTouchStart( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + + switch ( event.touches.length ) { + + case 1: + + switch ( scope.touches.ONE ) { + + case TOUCH.ROTATE: + + if ( scope.enableRotate === false ) return; + + handleTouchStartRotate( event ); + + state = STATE.TOUCH_ROTATE; + + break; + + case TOUCH.PAN: + + if ( scope.enablePan === false ) return; + + handleTouchStartPan( event ); + + state = STATE.TOUCH_PAN; + + break; + + default: + + state = STATE.NONE; + + } + + break; + + case 2: + + switch ( scope.touches.TWO ) { + + case TOUCH.DOLLY_PAN: + + if ( scope.enableZoom === false && scope.enablePan === false ) return; + + handleTouchStartDollyPan( event ); + + state = STATE.TOUCH_DOLLY_PAN; + + break; + + case TOUCH.DOLLY_ROTATE: + + if ( scope.enableZoom === false && scope.enableRotate === false ) return; + + handleTouchStartDollyRotate( event ); + + state = STATE.TOUCH_DOLLY_ROTATE; + + break; + + default: + + state = STATE.NONE; + + } + + break; + + default: + + state = STATE.NONE; + + } + + if ( state !== STATE.NONE ) { + + scope.dispatchEvent( startEvent ); + + } + + } + + function onTouchMove( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + event.stopPropagation(); + + switch ( state ) { + + case STATE.TOUCH_ROTATE: + + if ( scope.enableRotate === false ) return; + + handleTouchMoveRotate( event ); + + scope.update(); + + break; + + case STATE.TOUCH_PAN: + + if ( scope.enablePan === false ) return; + + handleTouchMovePan( event ); + + scope.update(); + + break; + + case STATE.TOUCH_DOLLY_PAN: + + if ( scope.enableZoom === false && scope.enablePan === false ) return; + + handleTouchMoveDollyPan( event ); + + scope.update(); + + break; + + case STATE.TOUCH_DOLLY_ROTATE: + + if ( scope.enableZoom === false && scope.enableRotate === false ) return; + + handleTouchMoveDollyRotate( event ); + + scope.update(); + + break; + + default: + + state = STATE.NONE; + + } + + } + + function onTouchEnd( event ) { + + if ( scope.enabled === false ) return; + + handleTouchEnd( event ); + + scope.dispatchEvent( endEvent ); + + state = STATE.NONE; + + } + + function onContextMenu( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + + } + + // + + scope.domElement.addEventListener( 'contextmenu', onContextMenu, false ); + + scope.domElement.addEventListener( 'mousedown', onMouseDown, false ); + scope.domElement.addEventListener( 'wheel', onMouseWheel, false ); + + scope.domElement.addEventListener( 'touchstart', onTouchStart, false ); + scope.domElement.addEventListener( 'touchend', onTouchEnd, false ); + scope.domElement.addEventListener( 'touchmove', onTouchMove, false ); + + scope.domElement.addEventListener( 'keydown', onKeyDown, false ); + + // make sure element can receive keys. + + if ( scope.domElement.tabIndex === - 1 ) { + + scope.domElement.tabIndex = 0; + + } + + // force an update at start + + this.object.lookAt( scope.target ); + this.update(); + this.saveState(); + +}; + +CameraControls.prototype = Object.create( EventDispatcher.prototype ); +CameraControls.prototype.constructor = CameraControls; + + +// OrbitControls maintains the "up" direction, camera.up (+Y by default). +// +// Orbit - left mouse / touch: one-finger move +// Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish +// Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move + +var OrbitControls = function ( object, domElement ) { + + CameraControls.call( this, object, domElement ); + + this.mouseButtons.LEFT = MOUSE.ROTATE; + this.mouseButtons.RIGHT = MOUSE.PAN; + + this.touches.ONE = TOUCH.ROTATE; + this.touches.TWO = TOUCH.DOLLY_PAN; + +}; + +OrbitControls.prototype = Object.create( EventDispatcher.prototype ); +OrbitControls.prototype.constructor = OrbitControls; + + +// MapControls maintains the "up" direction, camera.up (+Y by default) +// +// Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate +// Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish +// Pan - left mouse, or left right + ctrl/meta/shiftKey, or arrow keys / touch: one-finger move + + +var MapControls = function ( object, domElement ) { + + CameraControls.call( this, object, domElement ); + + this.mouseButtons.LEFT = MOUSE.PAN; + this.mouseButtons.RIGHT = MOUSE.ROTATE; + + this.touches.ONE = TOUCH.PAN; + this.touches.TWO = TOUCH.DOLLY_ROTATE; + +}; + +MapControls.prototype = Object.create( EventDispatcher.prototype ); +MapControls.prototype.constructor = MapControls; + + +// TrackballControls allows the camera to rotate over the polls and does not maintain camera.up +// +// Orbit - left mouse / touch: one-finger move +// Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish +// Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move + +var TrackballControls = function ( object, domElement ) { + + CameraControls.call( this, object, domElement ); + + this.trackball = true; + this.screenSpacePanning = true; + this.autoRotate = false; + + this.mouseButtons.LEFT = MOUSE.ROTATE; + this.mouseButtons.RIGHT = MOUSE.PAN; + + this.touches.ONE = TOUCH.ROTATE; + this.touches.TWO = TOUCH.DOLLY_PAN; + +}; + +TrackballControls.prototype = Object.create( EventDispatcher.prototype ); +TrackballControls.prototype.constructor = TrackballControls; + + +export { CameraControls, OrbitControls, MapControls, TrackballControls }; diff --git a/public/three/examples/jsm/loaders/GLTFLoader.js b/public/three/examples/jsm/loaders/GLTFLoader.js new file mode 100644 index 0000000..3e95e53 --- /dev/null +++ b/public/three/examples/jsm/loaders/GLTFLoader.js @@ -0,0 +1,4285 @@ +import { + AnimationClip, + Bone, + Box3, + BufferAttribute, + BufferGeometry, + ClampToEdgeWrapping, + Color, + DirectionalLight, + DoubleSide, + FileLoader, + FrontSide, + Group, + ImageBitmapLoader, + InterleavedBuffer, + InterleavedBufferAttribute, + Interpolant, + InterpolateDiscrete, + InterpolateLinear, + Line, + LineBasicMaterial, + LineLoop, + LineSegments, + LinearFilter, + LinearMipmapLinearFilter, + LinearMipmapNearestFilter, + Loader, + LoaderUtils, + Material, + MathUtils, + Matrix4, + Mesh, + MeshBasicMaterial, + MeshPhysicalMaterial, + MeshStandardMaterial, + MirroredRepeatWrapping, + NearestFilter, + NearestMipmapLinearFilter, + NearestMipmapNearestFilter, + NumberKeyframeTrack, + Object3D, + OrthographicCamera, + PerspectiveCamera, + PointLight, + Points, + PointsMaterial, + PropertyBinding, + Quaternion, + QuaternionKeyframeTrack, + RGBFormat, + RepeatWrapping, + Skeleton, + SkinnedMesh, + Sphere, + SpotLight, + TangentSpaceNormalMap, + Texture, + TextureLoader, + TriangleFanDrawMode, + TriangleStripDrawMode, + Vector2, + Vector3, + VectorKeyframeTrack, + sRGBEncoding +} from '../../../build/three.module.js'; + +class GLTFLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + this.dracoLoader = null; + this.ktx2Loader = null; + this.meshoptDecoder = null; + + this.pluginCallbacks = []; + + this.register( function ( parser ) { + + return new GLTFMaterialsClearcoatExtension( parser ); + + } ); + + this.register( function ( parser ) { + + return new GLTFTextureBasisUExtension( parser ); + + } ); + + this.register( function ( parser ) { + + return new GLTFTextureWebPExtension( parser ); + + } ); + + this.register( function ( parser ) { + + return new GLTFMaterialsTransmissionExtension( parser ); + + } ); + + this.register( function ( parser ) { + + return new GLTFMaterialsVolumeExtension( parser ); + + } ); + + this.register( function ( parser ) { + + return new GLTFMaterialsIorExtension( parser ); + + } ); + + this.register( function ( parser ) { + + return new GLTFMaterialsSpecularExtension( parser ); + + } ); + + this.register( function ( parser ) { + + return new GLTFLightsExtension( parser ); + + } ); + + this.register( function ( parser ) { + + return new GLTFMeshoptCompression( parser ); + + } ); + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + let resourcePath; + + if ( this.resourcePath !== '' ) { + + resourcePath = this.resourcePath; + + } else if ( this.path !== '' ) { + + resourcePath = this.path; + + } else { + + resourcePath = LoaderUtils.extractUrlBase( url ); + + } + + // Tells the LoadingManager to track an extra item, which resolves after + // the model is fully loaded. This means the count of items loaded will + // be incorrect, but ensures manager.onLoad() does not fire early. + this.manager.itemStart( url ); + + const _onError = function ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + }; + + const loader = new FileLoader( this.manager ); + + loader.setPath( this.path ); + loader.setResponseType( 'arraybuffer' ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( this.withCredentials ); + + loader.load( url, function ( data ) { + + try { + + scope.parse( data, resourcePath, function ( gltf ) { + + onLoad( gltf ); + + scope.manager.itemEnd( url ); + + }, _onError ); + + } catch ( e ) { + + _onError( e ); + + } + + }, onProgress, _onError ); + + } + + setDRACOLoader( dracoLoader ) { + + this.dracoLoader = dracoLoader; + return this; + + } + + setDDSLoader() { + + throw new Error( + + 'THREE.GLTFLoader: "MSFT_texture_dds" no longer supported. Please update to "KHR_texture_basisu".' + + ); + + } + + setKTX2Loader( ktx2Loader ) { + + this.ktx2Loader = ktx2Loader; + return this; + + } + + setMeshoptDecoder( meshoptDecoder ) { + + this.meshoptDecoder = meshoptDecoder; + return this; + + } + + register( callback ) { + + if ( this.pluginCallbacks.indexOf( callback ) === - 1 ) { + + this.pluginCallbacks.push( callback ); + + } + + return this; + + } + + unregister( callback ) { + + if ( this.pluginCallbacks.indexOf( callback ) !== - 1 ) { + + this.pluginCallbacks.splice( this.pluginCallbacks.indexOf( callback ), 1 ); + + } + + return this; + + } + + parse( data, path, onLoad, onError ) { + + let content; + const extensions = {}; + const plugins = {}; + + if ( typeof data === 'string' ) { + + content = data; + + } else { + + const magic = LoaderUtils.decodeText( new Uint8Array( data, 0, 4 ) ); + + if ( magic === BINARY_EXTENSION_HEADER_MAGIC ) { + + try { + + extensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data ); + + } catch ( error ) { + + if ( onError ) onError( error ); + return; + + } + + content = extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content; + + } else { + + content = LoaderUtils.decodeText( new Uint8Array( data ) ); + + } + + } + + const json = JSON.parse( content ); + + if ( json.asset === undefined || json.asset.version[ 0 ] < 2 ) { + + if ( onError ) onError( new Error( 'THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported.' ) ); + return; + + } + + const parser = new GLTFParser( json, { + + path: path || this.resourcePath || '', + crossOrigin: this.crossOrigin, + requestHeader: this.requestHeader, + manager: this.manager, + ktx2Loader: this.ktx2Loader, + meshoptDecoder: this.meshoptDecoder + + } ); + + parser.fileLoader.setRequestHeader( this.requestHeader ); + + for ( let i = 0; i < this.pluginCallbacks.length; i ++ ) { + + const plugin = this.pluginCallbacks[ i ]( parser ); + plugins[ plugin.name ] = plugin; + + // Workaround to avoid determining as unknown extension + // in addUnknownExtensionsToUserData(). + // Remove this workaround if we move all the existing + // extension handlers to plugin system + extensions[ plugin.name ] = true; + + } + + if ( json.extensionsUsed ) { + + for ( let i = 0; i < json.extensionsUsed.length; ++ i ) { + + const extensionName = json.extensionsUsed[ i ]; + const extensionsRequired = json.extensionsRequired || []; + + switch ( extensionName ) { + + case EXTENSIONS.KHR_MATERIALS_UNLIT: + extensions[ extensionName ] = new GLTFMaterialsUnlitExtension(); + break; + + case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: + extensions[ extensionName ] = new GLTFMaterialsPbrSpecularGlossinessExtension(); + break; + + case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION: + extensions[ extensionName ] = new GLTFDracoMeshCompressionExtension( json, this.dracoLoader ); + break; + + case EXTENSIONS.KHR_TEXTURE_TRANSFORM: + extensions[ extensionName ] = new GLTFTextureTransformExtension(); + break; + + case EXTENSIONS.KHR_MESH_QUANTIZATION: + extensions[ extensionName ] = new GLTFMeshQuantizationExtension(); + break; + + default: + + if ( extensionsRequired.indexOf( extensionName ) >= 0 && plugins[ extensionName ] === undefined ) { + + console.warn( 'THREE.GLTFLoader: Unknown extension "' + extensionName + '".' ); + + } + + } + + } + + } + + parser.setExtensions( extensions ); + parser.setPlugins( plugins ); + parser.parse( onLoad, onError ); + + } + +} + +/* GLTFREGISTRY */ + +function GLTFRegistry() { + + let objects = {}; + + return { + + get: function ( key ) { + + return objects[ key ]; + + }, + + add: function ( key, object ) { + + objects[ key ] = object; + + }, + + remove: function ( key ) { + + delete objects[ key ]; + + }, + + removeAll: function () { + + objects = {}; + + } + + }; + +} + +/*********************************/ +/********** EXTENSIONS ***********/ +/*********************************/ + +const EXTENSIONS = { + KHR_BINARY_GLTF: 'KHR_binary_glTF', + KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression', + KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual', + KHR_MATERIALS_CLEARCOAT: 'KHR_materials_clearcoat', + KHR_MATERIALS_IOR: 'KHR_materials_ior', + KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness', + KHR_MATERIALS_SPECULAR: 'KHR_materials_specular', + KHR_MATERIALS_TRANSMISSION: 'KHR_materials_transmission', + KHR_MATERIALS_UNLIT: 'KHR_materials_unlit', + KHR_MATERIALS_VOLUME: 'KHR_materials_volume', + KHR_TEXTURE_BASISU: 'KHR_texture_basisu', + KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform', + KHR_MESH_QUANTIZATION: 'KHR_mesh_quantization', + EXT_TEXTURE_WEBP: 'EXT_texture_webp', + EXT_MESHOPT_COMPRESSION: 'EXT_meshopt_compression' +}; + +/** + * Punctual Lights Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual + */ +class GLTFLightsExtension { + + constructor( parser ) { + + this.parser = parser; + this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL; + + // Object3D instance caches + this.cache = { refs: {}, uses: {} }; + + } + + _markDefs() { + + const parser = this.parser; + const nodeDefs = this.parser.json.nodes || []; + + for ( let nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) { + + const nodeDef = nodeDefs[ nodeIndex ]; + + if ( nodeDef.extensions + && nodeDef.extensions[ this.name ] + && nodeDef.extensions[ this.name ].light !== undefined ) { + + parser._addNodeRef( this.cache, nodeDef.extensions[ this.name ].light ); + + } + + } + + } + + _loadLight( lightIndex ) { + + const parser = this.parser; + const cacheKey = 'light:' + lightIndex; + let dependency = parser.cache.get( cacheKey ); + + if ( dependency ) return dependency; + + const json = parser.json; + const extensions = ( json.extensions && json.extensions[ this.name ] ) || {}; + const lightDefs = extensions.lights || []; + const lightDef = lightDefs[ lightIndex ]; + let lightNode; + + const color = new Color( 0xffffff ); + + if ( lightDef.color !== undefined ) color.fromArray( lightDef.color ); + + const range = lightDef.range !== undefined ? lightDef.range : 0; + + switch ( lightDef.type ) { + + case 'directional': + lightNode = new DirectionalLight( color ); + lightNode.target.position.set( 0, 0, - 1 ); + lightNode.add( lightNode.target ); + break; + + case 'point': + lightNode = new PointLight( color ); + lightNode.distance = range; + break; + + case 'spot': + lightNode = new SpotLight( color ); + lightNode.distance = range; + // Handle spotlight properties. + lightDef.spot = lightDef.spot || {}; + lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle : 0; + lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0; + lightNode.angle = lightDef.spot.outerConeAngle; + lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle; + lightNode.target.position.set( 0, 0, - 1 ); + lightNode.add( lightNode.target ); + break; + + default: + throw new Error( 'THREE.GLTFLoader: Unexpected light type: ' + lightDef.type ); + + } + + // Some lights (e.g. spot) default to a position other than the origin. Reset the position + // here, because node-level parsing will only override position if explicitly specified. + lightNode.position.set( 0, 0, 0 ); + + lightNode.decay = 2; + + if ( lightDef.intensity !== undefined ) lightNode.intensity = lightDef.intensity; + + lightNode.name = parser.createUniqueName( lightDef.name || ( 'light_' + lightIndex ) ); + + dependency = Promise.resolve( lightNode ); + + parser.cache.add( cacheKey, dependency ); + + return dependency; + + } + + createNodeAttachment( nodeIndex ) { + + const self = this; + const parser = this.parser; + const json = parser.json; + const nodeDef = json.nodes[ nodeIndex ]; + const lightDef = ( nodeDef.extensions && nodeDef.extensions[ this.name ] ) || {}; + const lightIndex = lightDef.light; + + if ( lightIndex === undefined ) return null; + + return this._loadLight( lightIndex ).then( function ( light ) { + + return parser._getNodeRef( self.cache, lightIndex, light ); + + } ); + + } + +} + +/** + * Unlit Materials Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_unlit + */ +class GLTFMaterialsUnlitExtension { + + constructor() { + + this.name = EXTENSIONS.KHR_MATERIALS_UNLIT; + + } + + getMaterialType() { + + return MeshBasicMaterial; + + } + + extendParams( materialParams, materialDef, parser ) { + + const pending = []; + + materialParams.color = new Color( 1.0, 1.0, 1.0 ); + materialParams.opacity = 1.0; + + const metallicRoughness = materialDef.pbrMetallicRoughness; + + if ( metallicRoughness ) { + + if ( Array.isArray( metallicRoughness.baseColorFactor ) ) { + + const array = metallicRoughness.baseColorFactor; + + materialParams.color.fromArray( array ); + materialParams.opacity = array[ 3 ]; + + } + + if ( metallicRoughness.baseColorTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture ) ); + + } + + } + + return Promise.all( pending ); + + } + +} + +/** + * Clearcoat Materials Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_clearcoat + */ +class GLTFMaterialsClearcoatExtension { + + constructor( parser ) { + + this.parser = parser; + this.name = EXTENSIONS.KHR_MATERIALS_CLEARCOAT; + + } + + getMaterialType( materialIndex ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null; + + return MeshPhysicalMaterial; + + } + + extendMaterialParams( materialIndex, materialParams ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) { + + return Promise.resolve(); + + } + + const pending = []; + + const extension = materialDef.extensions[ this.name ]; + + if ( extension.clearcoatFactor !== undefined ) { + + materialParams.clearcoat = extension.clearcoatFactor; + + } + + if ( extension.clearcoatTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'clearcoatMap', extension.clearcoatTexture ) ); + + } + + if ( extension.clearcoatRoughnessFactor !== undefined ) { + + materialParams.clearcoatRoughness = extension.clearcoatRoughnessFactor; + + } + + if ( extension.clearcoatRoughnessTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'clearcoatRoughnessMap', extension.clearcoatRoughnessTexture ) ); + + } + + if ( extension.clearcoatNormalTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'clearcoatNormalMap', extension.clearcoatNormalTexture ) ); + + if ( extension.clearcoatNormalTexture.scale !== undefined ) { + + const scale = extension.clearcoatNormalTexture.scale; + + materialParams.clearcoatNormalScale = new Vector2( scale, scale ); + + } + + } + + return Promise.all( pending ); + + } + +} + +/** + * Transmission Materials Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_transmission + * Draft: https://github.com/KhronosGroup/glTF/pull/1698 + */ +class GLTFMaterialsTransmissionExtension { + + constructor( parser ) { + + this.parser = parser; + this.name = EXTENSIONS.KHR_MATERIALS_TRANSMISSION; + + } + + getMaterialType( materialIndex ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null; + + return MeshPhysicalMaterial; + + } + + extendMaterialParams( materialIndex, materialParams ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) { + + return Promise.resolve(); + + } + + const pending = []; + + const extension = materialDef.extensions[ this.name ]; + + if ( extension.transmissionFactor !== undefined ) { + + materialParams.transmission = extension.transmissionFactor; + + } + + if ( extension.transmissionTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'transmissionMap', extension.transmissionTexture ) ); + + } + + return Promise.all( pending ); + + } + +} + +/** + * Materials Volume Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_volume + */ +class GLTFMaterialsVolumeExtension { + + constructor( parser ) { + + this.parser = parser; + this.name = EXTENSIONS.KHR_MATERIALS_VOLUME; + + } + + getMaterialType( materialIndex ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null; + + return MeshPhysicalMaterial; + + } + + extendMaterialParams( materialIndex, materialParams ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) { + + return Promise.resolve(); + + } + + const pending = []; + + const extension = materialDef.extensions[ this.name ]; + + materialParams.thickness = extension.thicknessFactor !== undefined ? extension.thicknessFactor : 0; + + if ( extension.thicknessTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'thicknessMap', extension.thicknessTexture ) ); + + } + + materialParams.attenuationDistance = extension.attenuationDistance || 0; + + const colorArray = extension.attenuationColor || [ 1, 1, 1 ]; + materialParams.attenuationTint = new Color( colorArray[ 0 ], colorArray[ 1 ], colorArray[ 2 ] ); + + return Promise.all( pending ); + + } + +} + +/** + * Materials ior Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_ior + */ +class GLTFMaterialsIorExtension { + + constructor( parser ) { + + this.parser = parser; + this.name = EXTENSIONS.KHR_MATERIALS_IOR; + + } + + getMaterialType( materialIndex ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null; + + return MeshPhysicalMaterial; + + } + + extendMaterialParams( materialIndex, materialParams ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) { + + return Promise.resolve(); + + } + + const extension = materialDef.extensions[ this.name ]; + + materialParams.ior = extension.ior !== undefined ? extension.ior : 1.5; + + return Promise.resolve(); + + } + +} + +/** + * Materials specular Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_specular + */ +class GLTFMaterialsSpecularExtension { + + constructor( parser ) { + + this.parser = parser; + this.name = EXTENSIONS.KHR_MATERIALS_SPECULAR; + + } + + getMaterialType( materialIndex ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null; + + return MeshPhysicalMaterial; + + } + + extendMaterialParams( materialIndex, materialParams ) { + + const parser = this.parser; + const materialDef = parser.json.materials[ materialIndex ]; + + if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) { + + return Promise.resolve(); + + } + + const pending = []; + + const extension = materialDef.extensions[ this.name ]; + + materialParams.specularIntensity = extension.specularFactor !== undefined ? extension.specularFactor : 1.0; + + if ( extension.specularTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'specularIntensityMap', extension.specularTexture ) ); + + } + + const colorArray = extension.specularColorFactor || [ 1, 1, 1 ]; + materialParams.specularTint = new Color( colorArray[ 0 ], colorArray[ 1 ], colorArray[ 2 ] ); + + if ( extension.specularColorTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'specularTintMap', extension.specularColorTexture ).then( function ( texture ) { + + texture.encoding = sRGBEncoding; + + } ) ); + + } + + return Promise.all( pending ); + + } + +} + +/** + * BasisU Texture Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_basisu + */ +class GLTFTextureBasisUExtension { + + constructor( parser ) { + + this.parser = parser; + this.name = EXTENSIONS.KHR_TEXTURE_BASISU; + + } + + loadTexture( textureIndex ) { + + const parser = this.parser; + const json = parser.json; + + const textureDef = json.textures[ textureIndex ]; + + if ( ! textureDef.extensions || ! textureDef.extensions[ this.name ] ) { + + return null; + + } + + const extension = textureDef.extensions[ this.name ]; + const source = json.images[ extension.source ]; + const loader = parser.options.ktx2Loader; + + if ( ! loader ) { + + if ( json.extensionsRequired && json.extensionsRequired.indexOf( this.name ) >= 0 ) { + + throw new Error( 'THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures' ); + + } else { + + // Assumes that the extension is optional and that a fallback texture is present + return null; + + } + + } + + return parser.loadTextureImage( textureIndex, source, loader ); + + } + +} + +/** + * WebP Texture Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_texture_webp + */ +class GLTFTextureWebPExtension { + + constructor( parser ) { + + this.parser = parser; + this.name = EXTENSIONS.EXT_TEXTURE_WEBP; + this.isSupported = null; + + } + + loadTexture( textureIndex ) { + + const name = this.name; + const parser = this.parser; + const json = parser.json; + + const textureDef = json.textures[ textureIndex ]; + + if ( ! textureDef.extensions || ! textureDef.extensions[ name ] ) { + + return null; + + } + + const extension = textureDef.extensions[ name ]; + const source = json.images[ extension.source ]; + + let loader = parser.textureLoader; + if ( source.uri ) { + + const handler = parser.options.manager.getHandler( source.uri ); + if ( handler !== null ) loader = handler; + + } + + return this.detectSupport().then( function ( isSupported ) { + + if ( isSupported ) return parser.loadTextureImage( textureIndex, source, loader ); + + if ( json.extensionsRequired && json.extensionsRequired.indexOf( name ) >= 0 ) { + + throw new Error( 'THREE.GLTFLoader: WebP required by asset but unsupported.' ); + + } + + // Fall back to PNG or JPEG. + return parser.loadTexture( textureIndex ); + + } ); + + } + + detectSupport() { + + if ( ! this.isSupported ) { + + this.isSupported = new Promise( function ( resolve ) { + + const image = new Image(); + + // Lossy test image. Support for lossy images doesn't guarantee support for all + // WebP images, unfortunately. + image.src = 'data:image/webp;base64,UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA'; + + image.onload = image.onerror = function () { + + resolve( image.height === 1 ); + + }; + + } ); + + } + + return this.isSupported; + + } + +} + +/** + * meshopt BufferView Compression Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_meshopt_compression + */ +class GLTFMeshoptCompression { + + constructor( parser ) { + + this.name = EXTENSIONS.EXT_MESHOPT_COMPRESSION; + this.parser = parser; + + } + + loadBufferView( index ) { + + const json = this.parser.json; + const bufferView = json.bufferViews[ index ]; + + if ( bufferView.extensions && bufferView.extensions[ this.name ] ) { + + const extensionDef = bufferView.extensions[ this.name ]; + + const buffer = this.parser.getDependency( 'buffer', extensionDef.buffer ); + const decoder = this.parser.options.meshoptDecoder; + + if ( ! decoder || ! decoder.supported ) { + + if ( json.extensionsRequired && json.extensionsRequired.indexOf( this.name ) >= 0 ) { + + throw new Error( 'THREE.GLTFLoader: setMeshoptDecoder must be called before loading compressed files' ); + + } else { + + // Assumes that the extension is optional and that fallback buffer data is present + return null; + + } + + } + + return Promise.all( [ buffer, decoder.ready ] ).then( function ( res ) { + + const byteOffset = extensionDef.byteOffset || 0; + const byteLength = extensionDef.byteLength || 0; + + const count = extensionDef.count; + const stride = extensionDef.byteStride; + + const result = new ArrayBuffer( count * stride ); + const source = new Uint8Array( res[ 0 ], byteOffset, byteLength ); + + decoder.decodeGltfBuffer( new Uint8Array( result ), count, stride, source, extensionDef.mode, extensionDef.filter ); + return result; + + } ); + + } else { + + return null; + + } + + } + +} + +/* BINARY EXTENSION */ +const BINARY_EXTENSION_HEADER_MAGIC = 'glTF'; +const BINARY_EXTENSION_HEADER_LENGTH = 12; +const BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 }; + +class GLTFBinaryExtension { + + constructor( data ) { + + this.name = EXTENSIONS.KHR_BINARY_GLTF; + this.content = null; + this.body = null; + + const headerView = new DataView( data, 0, BINARY_EXTENSION_HEADER_LENGTH ); + + this.header = { + magic: LoaderUtils.decodeText( new Uint8Array( data.slice( 0, 4 ) ) ), + version: headerView.getUint32( 4, true ), + length: headerView.getUint32( 8, true ) + }; + + if ( this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC ) { + + throw new Error( 'THREE.GLTFLoader: Unsupported glTF-Binary header.' ); + + } else if ( this.header.version < 2.0 ) { + + throw new Error( 'THREE.GLTFLoader: Legacy binary file detected.' ); + + } + + const chunkContentsLength = this.header.length - BINARY_EXTENSION_HEADER_LENGTH; + const chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH ); + let chunkIndex = 0; + + while ( chunkIndex < chunkContentsLength ) { + + const chunkLength = chunkView.getUint32( chunkIndex, true ); + chunkIndex += 4; + + const chunkType = chunkView.getUint32( chunkIndex, true ); + chunkIndex += 4; + + if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON ) { + + const contentArray = new Uint8Array( data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength ); + this.content = LoaderUtils.decodeText( contentArray ); + + } else if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN ) { + + const byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex; + this.body = data.slice( byteOffset, byteOffset + chunkLength ); + + } + + // Clients must ignore chunks with unknown types. + + chunkIndex += chunkLength; + + } + + if ( this.content === null ) { + + throw new Error( 'THREE.GLTFLoader: JSON content not found.' ); + + } + + } + +} + +/** + * DRACO Mesh Compression Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_draco_mesh_compression + */ +class GLTFDracoMeshCompressionExtension { + + constructor( json, dracoLoader ) { + + if ( ! dracoLoader ) { + + throw new Error( 'THREE.GLTFLoader: No DRACOLoader instance provided.' ); + + } + + this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION; + this.json = json; + this.dracoLoader = dracoLoader; + this.dracoLoader.preload(); + + } + + decodePrimitive( primitive, parser ) { + + const json = this.json; + const dracoLoader = this.dracoLoader; + const bufferViewIndex = primitive.extensions[ this.name ].bufferView; + const gltfAttributeMap = primitive.extensions[ this.name ].attributes; + const threeAttributeMap = {}; + const attributeNormalizedMap = {}; + const attributeTypeMap = {}; + + for ( const attributeName in gltfAttributeMap ) { + + const threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase(); + + threeAttributeMap[ threeAttributeName ] = gltfAttributeMap[ attributeName ]; + + } + + for ( const attributeName in primitive.attributes ) { + + const threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase(); + + if ( gltfAttributeMap[ attributeName ] !== undefined ) { + + const accessorDef = json.accessors[ primitive.attributes[ attributeName ] ]; + const componentType = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ]; + + attributeTypeMap[ threeAttributeName ] = componentType; + attributeNormalizedMap[ threeAttributeName ] = accessorDef.normalized === true; + + } + + } + + return parser.getDependency( 'bufferView', bufferViewIndex ).then( function ( bufferView ) { + + return new Promise( function ( resolve ) { + + dracoLoader.decodeDracoFile( bufferView, function ( geometry ) { + + for ( const attributeName in geometry.attributes ) { + + const attribute = geometry.attributes[ attributeName ]; + const normalized = attributeNormalizedMap[ attributeName ]; + + if ( normalized !== undefined ) attribute.normalized = normalized; + + } + + resolve( geometry ); + + }, threeAttributeMap, attributeTypeMap ); + + } ); + + } ); + + } + +} + +/** + * Texture Transform Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_transform + */ +class GLTFTextureTransformExtension { + + constructor() { + + this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM; + + } + + extendTexture( texture, transform ) { + + if ( transform.texCoord !== undefined ) { + + console.warn( 'THREE.GLTFLoader: Custom UV sets in "' + this.name + '" extension not yet supported.' ); + + } + + if ( transform.offset === undefined && transform.rotation === undefined && transform.scale === undefined ) { + + // See https://github.com/mrdoob/three.js/issues/21819. + return texture; + + } + + texture = texture.clone(); + + if ( transform.offset !== undefined ) { + + texture.offset.fromArray( transform.offset ); + + } + + if ( transform.rotation !== undefined ) { + + texture.rotation = transform.rotation; + + } + + if ( transform.scale !== undefined ) { + + texture.repeat.fromArray( transform.scale ); + + } + + texture.needsUpdate = true; + + return texture; + + } + +} + +/** + * Specular-Glossiness Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness + */ + +/** + * A sub class of StandardMaterial with some of the functionality + * changed via the `onBeforeCompile` callback + * @pailhead + */ +class GLTFMeshStandardSGMaterial extends MeshStandardMaterial { + + constructor( params ) { + + super(); + + this.isGLTFSpecularGlossinessMaterial = true; + + //various chunks that need replacing + const specularMapParsFragmentChunk = [ + '#ifdef USE_SPECULARMAP', + ' uniform sampler2D specularMap;', + '#endif' + ].join( '\n' ); + + const glossinessMapParsFragmentChunk = [ + '#ifdef USE_GLOSSINESSMAP', + ' uniform sampler2D glossinessMap;', + '#endif' + ].join( '\n' ); + + const specularMapFragmentChunk = [ + 'vec3 specularFactor = specular;', + '#ifdef USE_SPECULARMAP', + ' vec4 texelSpecular = texture2D( specularMap, vUv );', + ' texelSpecular = sRGBToLinear( texelSpecular );', + ' // reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture', + ' specularFactor *= texelSpecular.rgb;', + '#endif' + ].join( '\n' ); + + const glossinessMapFragmentChunk = [ + 'float glossinessFactor = glossiness;', + '#ifdef USE_GLOSSINESSMAP', + ' vec4 texelGlossiness = texture2D( glossinessMap, vUv );', + ' // reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture', + ' glossinessFactor *= texelGlossiness.a;', + '#endif' + ].join( '\n' ); + + const lightPhysicalFragmentChunk = [ + 'PhysicalMaterial material;', + 'material.diffuseColor = diffuseColor.rgb * ( 1. - max( specularFactor.r, max( specularFactor.g, specularFactor.b ) ) );', + 'vec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );', + 'float geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );', + 'material.roughness = max( 1.0 - glossinessFactor, 0.0525 ); // 0.0525 corresponds to the base mip of a 256 cubemap.', + 'material.roughness += geometryRoughness;', + 'material.roughness = min( material.roughness, 1.0 );', + 'material.specularColor = specularFactor;', + ].join( '\n' ); + + const uniforms = { + specular: { value: new Color().setHex( 0xffffff ) }, + glossiness: { value: 1 }, + specularMap: { value: null }, + glossinessMap: { value: null } + }; + + this._extraUniforms = uniforms; + + this.onBeforeCompile = function ( shader ) { + + for ( const uniformName in uniforms ) { + + shader.uniforms[ uniformName ] = uniforms[ uniformName ]; + + } + + shader.fragmentShader = shader.fragmentShader + .replace( 'uniform float roughness;', 'uniform vec3 specular;' ) + .replace( 'uniform float metalness;', 'uniform float glossiness;' ) + .replace( '#include ', specularMapParsFragmentChunk ) + .replace( '#include ', glossinessMapParsFragmentChunk ) + .replace( '#include ', specularMapFragmentChunk ) + .replace( '#include ', glossinessMapFragmentChunk ) + .replace( '#include ', lightPhysicalFragmentChunk ); + + }; + + Object.defineProperties( this, { + + specular: { + get: function () { + + return uniforms.specular.value; + + }, + set: function ( v ) { + + uniforms.specular.value = v; + + } + }, + + specularMap: { + get: function () { + + return uniforms.specularMap.value; + + }, + set: function ( v ) { + + uniforms.specularMap.value = v; + + if ( v ) { + + this.defines.USE_SPECULARMAP = ''; // USE_UV is set by the renderer for specular maps + + } else { + + delete this.defines.USE_SPECULARMAP; + + } + + } + }, + + glossiness: { + get: function () { + + return uniforms.glossiness.value; + + }, + set: function ( v ) { + + uniforms.glossiness.value = v; + + } + }, + + glossinessMap: { + get: function () { + + return uniforms.glossinessMap.value; + + }, + set: function ( v ) { + + uniforms.glossinessMap.value = v; + + if ( v ) { + + this.defines.USE_GLOSSINESSMAP = ''; + this.defines.USE_UV = ''; + + } else { + + delete this.defines.USE_GLOSSINESSMAP; + delete this.defines.USE_UV; + + } + + } + } + + } ); + + delete this.metalness; + delete this.roughness; + delete this.metalnessMap; + delete this.roughnessMap; + + this.setValues( params ); + + } + + copy( source ) { + + super.copy( source ); + + this.specularMap = source.specularMap; + this.specular.copy( source.specular ); + this.glossinessMap = source.glossinessMap; + this.glossiness = source.glossiness; + delete this.metalness; + delete this.roughness; + delete this.metalnessMap; + delete this.roughnessMap; + return this; + + } + +} + + +class GLTFMaterialsPbrSpecularGlossinessExtension { + + constructor() { + + this.name = EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS; + + this.specularGlossinessParams = [ + 'color', + 'map', + 'lightMap', + 'lightMapIntensity', + 'aoMap', + 'aoMapIntensity', + 'emissive', + 'emissiveIntensity', + 'emissiveMap', + 'bumpMap', + 'bumpScale', + 'normalMap', + 'normalMapType', + 'displacementMap', + 'displacementScale', + 'displacementBias', + 'specularMap', + 'specular', + 'glossinessMap', + 'glossiness', + 'alphaMap', + 'envMap', + 'envMapIntensity', + 'refractionRatio', + ]; + + } + + getMaterialType() { + + return GLTFMeshStandardSGMaterial; + + } + + extendParams( materialParams, materialDef, parser ) { + + const pbrSpecularGlossiness = materialDef.extensions[ this.name ]; + + materialParams.color = new Color( 1.0, 1.0, 1.0 ); + materialParams.opacity = 1.0; + + const pending = []; + + if ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) { + + const array = pbrSpecularGlossiness.diffuseFactor; + + materialParams.color.fromArray( array ); + materialParams.opacity = array[ 3 ]; + + } + + if ( pbrSpecularGlossiness.diffuseTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'map', pbrSpecularGlossiness.diffuseTexture ) ); + + } + + materialParams.emissive = new Color( 0.0, 0.0, 0.0 ); + materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0; + materialParams.specular = new Color( 1.0, 1.0, 1.0 ); + + if ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) { + + materialParams.specular.fromArray( pbrSpecularGlossiness.specularFactor ); + + } + + if ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) { + + const specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture; + pending.push( parser.assignTexture( materialParams, 'glossinessMap', specGlossMapDef ) ); + pending.push( parser.assignTexture( materialParams, 'specularMap', specGlossMapDef ) ); + + } + + return Promise.all( pending ); + + } + + createMaterial( materialParams ) { + + const material = new GLTFMeshStandardSGMaterial( materialParams ); + material.fog = true; + + material.color = materialParams.color; + + material.map = materialParams.map === undefined ? null : materialParams.map; + + material.lightMap = null; + material.lightMapIntensity = 1.0; + + material.aoMap = materialParams.aoMap === undefined ? null : materialParams.aoMap; + material.aoMapIntensity = 1.0; + + material.emissive = materialParams.emissive; + material.emissiveIntensity = 1.0; + material.emissiveMap = materialParams.emissiveMap === undefined ? null : materialParams.emissiveMap; + + material.bumpMap = materialParams.bumpMap === undefined ? null : materialParams.bumpMap; + material.bumpScale = 1; + + material.normalMap = materialParams.normalMap === undefined ? null : materialParams.normalMap; + material.normalMapType = TangentSpaceNormalMap; + + if ( materialParams.normalScale ) material.normalScale = materialParams.normalScale; + + material.displacementMap = null; + material.displacementScale = 1; + material.displacementBias = 0; + + material.specularMap = materialParams.specularMap === undefined ? null : materialParams.specularMap; + material.specular = materialParams.specular; + + material.glossinessMap = materialParams.glossinessMap === undefined ? null : materialParams.glossinessMap; + material.glossiness = materialParams.glossiness; + + material.alphaMap = null; + + material.envMap = materialParams.envMap === undefined ? null : materialParams.envMap; + material.envMapIntensity = 1.0; + + material.refractionRatio = 0.98; + + return material; + + } + +} + +/** + * Mesh Quantization Extension + * + * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization + */ +class GLTFMeshQuantizationExtension { + + constructor() { + + this.name = EXTENSIONS.KHR_MESH_QUANTIZATION; + + } + +} + +/*********************************/ +/********** INTERPOLATION ********/ +/*********************************/ + +// Spline Interpolation +// Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation +class GLTFCubicSplineInterpolant extends Interpolant { + + constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + super( parameterPositions, sampleValues, sampleSize, resultBuffer ); + + } + + copySampleValue_( index ) { + + // Copies a sample value to the result buffer. See description of glTF + // CUBICSPLINE values layout in interpolate_() function below. + + const result = this.resultBuffer, + values = this.sampleValues, + valueSize = this.valueSize, + offset = index * valueSize * 3 + valueSize; + + for ( let i = 0; i !== valueSize; i ++ ) { + + result[ i ] = values[ offset + i ]; + + } + + return result; + + } + +} + +GLTFCubicSplineInterpolant.prototype.beforeStart_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_; + +GLTFCubicSplineInterpolant.prototype.afterEnd_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_; + +GLTFCubicSplineInterpolant.prototype.interpolate_ = function ( i1, t0, t, t1 ) { + + const result = this.resultBuffer; + const values = this.sampleValues; + const stride = this.valueSize; + + const stride2 = stride * 2; + const stride3 = stride * 3; + + const td = t1 - t0; + + const p = ( t - t0 ) / td; + const pp = p * p; + const ppp = pp * p; + + const offset1 = i1 * stride3; + const offset0 = offset1 - stride3; + + const s2 = - 2 * ppp + 3 * pp; + const s3 = ppp - pp; + const s0 = 1 - s2; + const s1 = s3 - pp + p; + + // Layout of keyframe output values for CUBICSPLINE animations: + // [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ] + for ( let i = 0; i !== stride; i ++ ) { + + const p0 = values[ offset0 + i + stride ]; // splineVertex_k + const m0 = values[ offset0 + i + stride2 ] * td; // outTangent_k * (t_k+1 - t_k) + const p1 = values[ offset1 + i + stride ]; // splineVertex_k+1 + const m1 = values[ offset1 + i ] * td; // inTangent_k+1 * (t_k+1 - t_k) + + result[ i ] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1; + + } + + return result; + +}; + +const _q = new Quaternion(); + +class GLTFCubicSplineQuaternionInterpolant extends GLTFCubicSplineInterpolant { + + interpolate_( i1, t0, t, t1 ) { + + const result = super.interpolate_( i1, t0, t, t1 ); + + _q.fromArray( result ).normalize().toArray( result ); + + return result; + + } + +} + + +/*********************************/ +/********** INTERNALS ************/ +/*********************************/ + +/* CONSTANTS */ + +const WEBGL_CONSTANTS = { + FLOAT: 5126, + //FLOAT_MAT2: 35674, + FLOAT_MAT3: 35675, + FLOAT_MAT4: 35676, + FLOAT_VEC2: 35664, + FLOAT_VEC3: 35665, + FLOAT_VEC4: 35666, + LINEAR: 9729, + REPEAT: 10497, + SAMPLER_2D: 35678, + POINTS: 0, + LINES: 1, + LINE_LOOP: 2, + LINE_STRIP: 3, + TRIANGLES: 4, + TRIANGLE_STRIP: 5, + TRIANGLE_FAN: 6, + UNSIGNED_BYTE: 5121, + UNSIGNED_SHORT: 5123 +}; + +const WEBGL_COMPONENT_TYPES = { + 5120: Int8Array, + 5121: Uint8Array, + 5122: Int16Array, + 5123: Uint16Array, + 5125: Uint32Array, + 5126: Float32Array +}; + +const WEBGL_FILTERS = { + 9728: NearestFilter, + 9729: LinearFilter, + 9984: NearestMipmapNearestFilter, + 9985: LinearMipmapNearestFilter, + 9986: NearestMipmapLinearFilter, + 9987: LinearMipmapLinearFilter +}; + +const WEBGL_WRAPPINGS = { + 33071: ClampToEdgeWrapping, + 33648: MirroredRepeatWrapping, + 10497: RepeatWrapping +}; + +const WEBGL_TYPE_SIZES = { + 'SCALAR': 1, + 'VEC2': 2, + 'VEC3': 3, + 'VEC4': 4, + 'MAT2': 4, + 'MAT3': 9, + 'MAT4': 16 +}; + +const ATTRIBUTES = { + POSITION: 'position', + NORMAL: 'normal', + TANGENT: 'tangent', + TEXCOORD_0: 'uv', + TEXCOORD_1: 'uv2', + COLOR_0: 'color', + WEIGHTS_0: 'skinWeight', + JOINTS_0: 'skinIndex', +}; + +const PATH_PROPERTIES = { + scale: 'scale', + translation: 'position', + rotation: 'quaternion', + weights: 'morphTargetInfluences' +}; + +const INTERPOLATION = { + CUBICSPLINE: undefined, // We use a custom interpolant (GLTFCubicSplineInterpolation) for CUBICSPLINE tracks. Each + // keyframe track will be initialized with a default interpolation type, then modified. + LINEAR: InterpolateLinear, + STEP: InterpolateDiscrete +}; + +const ALPHA_MODES = { + OPAQUE: 'OPAQUE', + MASK: 'MASK', + BLEND: 'BLEND' +}; + +/* UTILITY FUNCTIONS */ + +function resolveURL( url, path ) { + + // Invalid URL + if ( typeof url !== 'string' || url === '' ) return ''; + + // Host Relative URL + if ( /^https?:\/\//i.test( path ) && /^\//.test( url ) ) { + + path = path.replace( /(^https?:\/\/[^\/]+).*/i, '$1' ); + + } + + // Absolute URL http://,https://,// + if ( /^(https?:)?\/\//i.test( url ) ) return url; + + // Data URI + if ( /^data:.*,.*$/i.test( url ) ) return url; + + // Blob URL + if ( /^blob:.*$/i.test( url ) ) return url; + + // Relative URL + return path + url; + +} + +/** + * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material + */ +function createDefaultMaterial( cache ) { + + if ( cache[ 'DefaultMaterial' ] === undefined ) { + + cache[ 'DefaultMaterial' ] = new MeshStandardMaterial( { + color: 0xFFFFFF, + emissive: 0x000000, + metalness: 1, + roughness: 1, + transparent: false, + depthTest: true, + side: FrontSide + } ); + + } + + return cache[ 'DefaultMaterial' ]; + +} + +function addUnknownExtensionsToUserData( knownExtensions, object, objectDef ) { + + // Add unknown glTF extensions to an object's userData. + + for ( const name in objectDef.extensions ) { + + if ( knownExtensions[ name ] === undefined ) { + + object.userData.gltfExtensions = object.userData.gltfExtensions || {}; + object.userData.gltfExtensions[ name ] = objectDef.extensions[ name ]; + + } + + } + +} + +/** + * @param {Object3D|Material|BufferGeometry} object + * @param {GLTF.definition} gltfDef + */ +function assignExtrasToUserData( object, gltfDef ) { + + if ( gltfDef.extras !== undefined ) { + + if ( typeof gltfDef.extras === 'object' ) { + + Object.assign( object.userData, gltfDef.extras ); + + } else { + + console.warn( 'THREE.GLTFLoader: Ignoring primitive type .extras, ' + gltfDef.extras ); + + } + + } + +} + +/** + * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#morph-targets + * + * @param {BufferGeometry} geometry + * @param {Array} targets + * @param {GLTFParser} parser + * @return {Promise} + */ +function addMorphTargets( geometry, targets, parser ) { + + let hasMorphPosition = false; + let hasMorphNormal = false; + + for ( let i = 0, il = targets.length; i < il; i ++ ) { + + const target = targets[ i ]; + + if ( target.POSITION !== undefined ) hasMorphPosition = true; + if ( target.NORMAL !== undefined ) hasMorphNormal = true; + + if ( hasMorphPosition && hasMorphNormal ) break; + + } + + if ( ! hasMorphPosition && ! hasMorphNormal ) return Promise.resolve( geometry ); + + const pendingPositionAccessors = []; + const pendingNormalAccessors = []; + + for ( let i = 0, il = targets.length; i < il; i ++ ) { + + const target = targets[ i ]; + + if ( hasMorphPosition ) { + + const pendingAccessor = target.POSITION !== undefined + ? parser.getDependency( 'accessor', target.POSITION ) + : geometry.attributes.position; + + pendingPositionAccessors.push( pendingAccessor ); + + } + + if ( hasMorphNormal ) { + + const pendingAccessor = target.NORMAL !== undefined + ? parser.getDependency( 'accessor', target.NORMAL ) + : geometry.attributes.normal; + + pendingNormalAccessors.push( pendingAccessor ); + + } + + } + + return Promise.all( [ + Promise.all( pendingPositionAccessors ), + Promise.all( pendingNormalAccessors ) + ] ).then( function ( accessors ) { + + const morphPositions = accessors[ 0 ]; + const morphNormals = accessors[ 1 ]; + + if ( hasMorphPosition ) geometry.morphAttributes.position = morphPositions; + if ( hasMorphNormal ) geometry.morphAttributes.normal = morphNormals; + geometry.morphTargetsRelative = true; + + return geometry; + + } ); + +} + +/** + * @param {Mesh} mesh + * @param {GLTF.Mesh} meshDef + */ +function updateMorphTargets( mesh, meshDef ) { + + mesh.updateMorphTargets(); + + if ( meshDef.weights !== undefined ) { + + for ( let i = 0, il = meshDef.weights.length; i < il; i ++ ) { + + mesh.morphTargetInfluences[ i ] = meshDef.weights[ i ]; + + } + + } + + // .extras has user-defined data, so check that .extras.targetNames is an array. + if ( meshDef.extras && Array.isArray( meshDef.extras.targetNames ) ) { + + const targetNames = meshDef.extras.targetNames; + + if ( mesh.morphTargetInfluences.length === targetNames.length ) { + + mesh.morphTargetDictionary = {}; + + for ( let i = 0, il = targetNames.length; i < il; i ++ ) { + + mesh.morphTargetDictionary[ targetNames[ i ] ] = i; + + } + + } else { + + console.warn( 'THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.' ); + + } + + } + +} + +function createPrimitiveKey( primitiveDef ) { + + const dracoExtension = primitiveDef.extensions && primitiveDef.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ]; + let geometryKey; + + if ( dracoExtension ) { + + geometryKey = 'draco:' + dracoExtension.bufferView + + ':' + dracoExtension.indices + + ':' + createAttributesKey( dracoExtension.attributes ); + + } else { + + geometryKey = primitiveDef.indices + ':' + createAttributesKey( primitiveDef.attributes ) + ':' + primitiveDef.mode; + + } + + return geometryKey; + +} + +function createAttributesKey( attributes ) { + + let attributesKey = ''; + + const keys = Object.keys( attributes ).sort(); + + for ( let i = 0, il = keys.length; i < il; i ++ ) { + + attributesKey += keys[ i ] + ':' + attributes[ keys[ i ] ] + ';'; + + } + + return attributesKey; + +} + +function getNormalizedComponentScale( constructor ) { + + // Reference: + // https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization#encoding-quantized-data + + switch ( constructor ) { + + case Int8Array: + return 1 / 127; + + case Uint8Array: + return 1 / 255; + + case Int16Array: + return 1 / 32767; + + case Uint16Array: + return 1 / 65535; + + default: + throw new Error( 'THREE.GLTFLoader: Unsupported normalized accessor component type.' ); + + } + +} + +/* GLTF PARSER */ + +class GLTFParser { + + constructor( json = {}, options = {} ) { + + this.json = json; + this.extensions = {}; + this.plugins = {}; + this.options = options; + + // loader object cache + this.cache = new GLTFRegistry(); + + // associations between Three.js objects and glTF elements + this.associations = new Map(); + + // BufferGeometry caching + this.primitiveCache = {}; + + // Object3D instance caches + this.meshCache = { refs: {}, uses: {} }; + this.cameraCache = { refs: {}, uses: {} }; + this.lightCache = { refs: {}, uses: {} }; + + this.textureCache = {}; + + // Track node names, to ensure no duplicates + this.nodeNamesUsed = {}; + + // Use an ImageBitmapLoader if imageBitmaps are supported. Moves much of the + // expensive work of uploading a texture to the GPU off the main thread. + if ( typeof createImageBitmap !== 'undefined' && /Firefox/.test( navigator.userAgent ) === false ) { + + this.textureLoader = new ImageBitmapLoader( this.options.manager ); + + } else { + + this.textureLoader = new TextureLoader( this.options.manager ); + + } + + this.textureLoader.setCrossOrigin( this.options.crossOrigin ); + this.textureLoader.setRequestHeader( this.options.requestHeader ); + + this.fileLoader = new FileLoader( this.options.manager ); + this.fileLoader.setResponseType( 'arraybuffer' ); + + if ( this.options.crossOrigin === 'use-credentials' ) { + + this.fileLoader.setWithCredentials( true ); + + } + + } + + setExtensions( extensions ) { + + this.extensions = extensions; + + } + + setPlugins( plugins ) { + + this.plugins = plugins; + + } + + parse( onLoad, onError ) { + + const parser = this; + const json = this.json; + const extensions = this.extensions; + + // Clear the loader cache + this.cache.removeAll(); + + // Mark the special nodes/meshes in json for efficient parse + this._invokeAll( function ( ext ) { + + return ext._markDefs && ext._markDefs(); + + } ); + + Promise.all( this._invokeAll( function ( ext ) { + + return ext.beforeRoot && ext.beforeRoot(); + + } ) ).then( function () { + + return Promise.all( [ + + parser.getDependencies( 'scene' ), + parser.getDependencies( 'animation' ), + parser.getDependencies( 'camera' ), + + ] ); + + } ).then( function ( dependencies ) { + + const result = { + scene: dependencies[ 0 ][ json.scene || 0 ], + scenes: dependencies[ 0 ], + animations: dependencies[ 1 ], + cameras: dependencies[ 2 ], + asset: json.asset, + parser: parser, + userData: {} + }; + + addUnknownExtensionsToUserData( extensions, result, json ); + + assignExtrasToUserData( result, json ); + + Promise.all( parser._invokeAll( function ( ext ) { + + return ext.afterRoot && ext.afterRoot( result ); + + } ) ).then( function () { + + onLoad( result ); + + } ); + + } ).catch( onError ); + + } + + /** + * Marks the special nodes/meshes in json for efficient parse. + */ + _markDefs() { + + const nodeDefs = this.json.nodes || []; + const skinDefs = this.json.skins || []; + const meshDefs = this.json.meshes || []; + + // Nothing in the node definition indicates whether it is a Bone or an + // Object3D. Use the skins' joint references to mark bones. + for ( let skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex ++ ) { + + const joints = skinDefs[ skinIndex ].joints; + + for ( let i = 0, il = joints.length; i < il; i ++ ) { + + nodeDefs[ joints[ i ] ].isBone = true; + + } + + } + + // Iterate over all nodes, marking references to shared resources, + // as well as skeleton joints. + for ( let nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) { + + const nodeDef = nodeDefs[ nodeIndex ]; + + if ( nodeDef.mesh !== undefined ) { + + this._addNodeRef( this.meshCache, nodeDef.mesh ); + + // Nothing in the mesh definition indicates whether it is + // a SkinnedMesh or Mesh. Use the node's mesh reference + // to mark SkinnedMesh if node has skin. + if ( nodeDef.skin !== undefined ) { + + meshDefs[ nodeDef.mesh ].isSkinnedMesh = true; + + } + + } + + if ( nodeDef.camera !== undefined ) { + + this._addNodeRef( this.cameraCache, nodeDef.camera ); + + } + + } + + } + + /** + * Counts references to shared node / Object3D resources. These resources + * can be reused, or "instantiated", at multiple nodes in the scene + * hierarchy. Mesh, Camera, and Light instances are instantiated and must + * be marked. Non-scenegraph resources (like Materials, Geometries, and + * Textures) can be reused directly and are not marked here. + * + * Example: CesiumMilkTruck sample model reuses "Wheel" meshes. + */ + _addNodeRef( cache, index ) { + + if ( index === undefined ) return; + + if ( cache.refs[ index ] === undefined ) { + + cache.refs[ index ] = cache.uses[ index ] = 0; + + } + + cache.refs[ index ] ++; + + } + + /** Returns a reference to a shared resource, cloning it if necessary. */ + _getNodeRef( cache, index, object ) { + + if ( cache.refs[ index ] <= 1 ) return object; + + const ref = object.clone(); + + // Propagates mappings to the cloned object, prevents mappings on the + // original object from being lost. + const updateMappings = ( original, clone ) => { + + const mappings = this.associations.get( original ); + if ( mappings != null ) { + + this.associations.set( clone, mappings ); + + } + + for ( const [ i, child ] of original.children.entries() ) { + + updateMappings( child, clone.children[ i ] ); + + } + + }; + + updateMappings( object, ref ); + + ref.name += '_instance_' + ( cache.uses[ index ] ++ ); + + return ref; + + } + + _invokeOne( func ) { + + const extensions = Object.values( this.plugins ); + extensions.push( this ); + + for ( let i = 0; i < extensions.length; i ++ ) { + + const result = func( extensions[ i ] ); + + if ( result ) return result; + + } + + return null; + + } + + _invokeAll( func ) { + + const extensions = Object.values( this.plugins ); + extensions.unshift( this ); + + const pending = []; + + for ( let i = 0; i < extensions.length; i ++ ) { + + const result = func( extensions[ i ] ); + + if ( result ) pending.push( result ); + + } + + return pending; + + } + + /** + * Requests the specified dependency asynchronously, with caching. + * @param {string} type + * @param {number} index + * @return {Promise} + */ + getDependency( type, index ) { + + const cacheKey = type + ':' + index; + let dependency = this.cache.get( cacheKey ); + + if ( ! dependency ) { + + switch ( type ) { + + case 'scene': + dependency = this.loadScene( index ); + break; + + case 'node': + dependency = this.loadNode( index ); + break; + + case 'mesh': + dependency = this._invokeOne( function ( ext ) { + + return ext.loadMesh && ext.loadMesh( index ); + + } ); + break; + + case 'accessor': + dependency = this.loadAccessor( index ); + break; + + case 'bufferView': + dependency = this._invokeOne( function ( ext ) { + + return ext.loadBufferView && ext.loadBufferView( index ); + + } ); + break; + + case 'buffer': + dependency = this.loadBuffer( index ); + break; + + case 'material': + dependency = this._invokeOne( function ( ext ) { + + return ext.loadMaterial && ext.loadMaterial( index ); + + } ); + break; + + case 'texture': + dependency = this._invokeOne( function ( ext ) { + + return ext.loadTexture && ext.loadTexture( index ); + + } ); + break; + + case 'skin': + dependency = this.loadSkin( index ); + break; + + case 'animation': + dependency = this.loadAnimation( index ); + break; + + case 'camera': + dependency = this.loadCamera( index ); + break; + + default: + throw new Error( 'Unknown type: ' + type ); + + } + + this.cache.add( cacheKey, dependency ); + + } + + return dependency; + + } + + /** + * Requests all dependencies of the specified type asynchronously, with caching. + * @param {string} type + * @return {Promise>} + */ + getDependencies( type ) { + + let dependencies = this.cache.get( type ); + + if ( ! dependencies ) { + + const parser = this; + const defs = this.json[ type + ( type === 'mesh' ? 'es' : 's' ) ] || []; + + dependencies = Promise.all( defs.map( function ( def, index ) { + + return parser.getDependency( type, index ); + + } ) ); + + this.cache.add( type, dependencies ); + + } + + return dependencies; + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views + * @param {number} bufferIndex + * @return {Promise} + */ + loadBuffer( bufferIndex ) { + + const bufferDef = this.json.buffers[ bufferIndex ]; + const loader = this.fileLoader; + + if ( bufferDef.type && bufferDef.type !== 'arraybuffer' ) { + + throw new Error( 'THREE.GLTFLoader: ' + bufferDef.type + ' buffer type is not supported.' ); + + } + + // If present, GLB container is required to be the first buffer. + if ( bufferDef.uri === undefined && bufferIndex === 0 ) { + + return Promise.resolve( this.extensions[ EXTENSIONS.KHR_BINARY_GLTF ].body ); + + } + + const options = this.options; + + return new Promise( function ( resolve, reject ) { + + loader.load( resolveURL( bufferDef.uri, options.path ), resolve, undefined, function () { + + reject( new Error( 'THREE.GLTFLoader: Failed to load buffer "' + bufferDef.uri + '".' ) ); + + } ); + + } ); + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views + * @param {number} bufferViewIndex + * @return {Promise} + */ + loadBufferView( bufferViewIndex ) { + + const bufferViewDef = this.json.bufferViews[ bufferViewIndex ]; + + return this.getDependency( 'buffer', bufferViewDef.buffer ).then( function ( buffer ) { + + const byteLength = bufferViewDef.byteLength || 0; + const byteOffset = bufferViewDef.byteOffset || 0; + return buffer.slice( byteOffset, byteOffset + byteLength ); + + } ); + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors + * @param {number} accessorIndex + * @return {Promise} + */ + loadAccessor( accessorIndex ) { + + const parser = this; + const json = this.json; + + const accessorDef = this.json.accessors[ accessorIndex ]; + + if ( accessorDef.bufferView === undefined && accessorDef.sparse === undefined ) { + + // Ignore empty accessors, which may be used to declare runtime + // information about attributes coming from another source (e.g. Draco + // compression extension). + return Promise.resolve( null ); + + } + + const pendingBufferViews = []; + + if ( accessorDef.bufferView !== undefined ) { + + pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.bufferView ) ); + + } else { + + pendingBufferViews.push( null ); + + } + + if ( accessorDef.sparse !== undefined ) { + + pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.indices.bufferView ) ); + pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.values.bufferView ) ); + + } + + return Promise.all( pendingBufferViews ).then( function ( bufferViews ) { + + const bufferView = bufferViews[ 0 ]; + + const itemSize = WEBGL_TYPE_SIZES[ accessorDef.type ]; + const TypedArray = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ]; + + // For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12. + const elementBytes = TypedArray.BYTES_PER_ELEMENT; + const itemBytes = elementBytes * itemSize; + const byteOffset = accessorDef.byteOffset || 0; + const byteStride = accessorDef.bufferView !== undefined ? json.bufferViews[ accessorDef.bufferView ].byteStride : undefined; + const normalized = accessorDef.normalized === true; + let array, bufferAttribute; + + // The buffer is not interleaved if the stride is the item size in bytes. + if ( byteStride && byteStride !== itemBytes ) { + + // Each "slice" of the buffer, as defined by 'count' elements of 'byteStride' bytes, gets its own InterleavedBuffer + // This makes sure that IBA.count reflects accessor.count properly + const ibSlice = Math.floor( byteOffset / byteStride ); + const ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType + ':' + ibSlice + ':' + accessorDef.count; + let ib = parser.cache.get( ibCacheKey ); + + if ( ! ib ) { + + array = new TypedArray( bufferView, ibSlice * byteStride, accessorDef.count * byteStride / elementBytes ); + + // Integer parameters to IB/IBA are in array elements, not bytes. + ib = new InterleavedBuffer( array, byteStride / elementBytes ); + + parser.cache.add( ibCacheKey, ib ); + + } + + bufferAttribute = new InterleavedBufferAttribute( ib, itemSize, ( byteOffset % byteStride ) / elementBytes, normalized ); + + } else { + + if ( bufferView === null ) { + + array = new TypedArray( accessorDef.count * itemSize ); + + } else { + + array = new TypedArray( bufferView, byteOffset, accessorDef.count * itemSize ); + + } + + bufferAttribute = new BufferAttribute( array, itemSize, normalized ); + + } + + // https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#sparse-accessors + if ( accessorDef.sparse !== undefined ) { + + const itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR; + const TypedArrayIndices = WEBGL_COMPONENT_TYPES[ accessorDef.sparse.indices.componentType ]; + + const byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0; + const byteOffsetValues = accessorDef.sparse.values.byteOffset || 0; + + const sparseIndices = new TypedArrayIndices( bufferViews[ 1 ], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices ); + const sparseValues = new TypedArray( bufferViews[ 2 ], byteOffsetValues, accessorDef.sparse.count * itemSize ); + + if ( bufferView !== null ) { + + // Avoid modifying the original ArrayBuffer, if the bufferView wasn't initialized with zeroes. + bufferAttribute = new BufferAttribute( bufferAttribute.array.slice(), bufferAttribute.itemSize, bufferAttribute.normalized ); + + } + + for ( let i = 0, il = sparseIndices.length; i < il; i ++ ) { + + const index = sparseIndices[ i ]; + + bufferAttribute.setX( index, sparseValues[ i * itemSize ] ); + if ( itemSize >= 2 ) bufferAttribute.setY( index, sparseValues[ i * itemSize + 1 ] ); + if ( itemSize >= 3 ) bufferAttribute.setZ( index, sparseValues[ i * itemSize + 2 ] ); + if ( itemSize >= 4 ) bufferAttribute.setW( index, sparseValues[ i * itemSize + 3 ] ); + if ( itemSize >= 5 ) throw new Error( 'THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.' ); + + } + + } + + return bufferAttribute; + + } ); + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures + * @param {number} textureIndex + * @return {Promise} + */ + loadTexture( textureIndex ) { + + const json = this.json; + const options = this.options; + const textureDef = json.textures[ textureIndex ]; + const source = json.images[ textureDef.source ]; + + let loader = this.textureLoader; + + if ( source.uri ) { + + const handler = options.manager.getHandler( source.uri ); + if ( handler !== null ) loader = handler; + + } + + return this.loadTextureImage( textureIndex, source, loader ); + + } + + loadTextureImage( textureIndex, source, loader ) { + + const parser = this; + const json = this.json; + const options = this.options; + + const textureDef = json.textures[ textureIndex ]; + + const cacheKey = ( source.uri || source.bufferView ) + ':' + textureDef.sampler; + + if ( this.textureCache[ cacheKey ] ) { + + // See https://github.com/mrdoob/three.js/issues/21559. + return this.textureCache[ cacheKey ]; + + } + + const URL = self.URL || self.webkitURL; + + let sourceURI = source.uri || ''; + let isObjectURL = false; + + if ( source.bufferView !== undefined ) { + + // Load binary image data from bufferView, if provided. + + sourceURI = parser.getDependency( 'bufferView', source.bufferView ).then( function ( bufferView ) { + + isObjectURL = true; + const blob = new Blob( [ bufferView ], { type: source.mimeType } ); + sourceURI = URL.createObjectURL( blob ); + return sourceURI; + + } ); + + } else if ( source.uri === undefined ) { + + throw new Error( 'THREE.GLTFLoader: Image ' + textureIndex + ' is missing URI and bufferView' ); + + } + + const promise = Promise.resolve( sourceURI ).then( function ( sourceURI ) { + + return new Promise( function ( resolve, reject ) { + + let onLoad = resolve; + + if ( loader.isImageBitmapLoader === true ) { + + onLoad = function ( imageBitmap ) { + + const texture = new Texture( imageBitmap ); + texture.needsUpdate = true; + + resolve( texture ); + + }; + + } + + loader.load( resolveURL( sourceURI, options.path ), onLoad, undefined, reject ); + + } ); + + } ).then( function ( texture ) { + + // Clean up resources and configure Texture. + + if ( isObjectURL === true ) { + + URL.revokeObjectURL( sourceURI ); + + } + + texture.flipY = false; + + if ( textureDef.name ) texture.name = textureDef.name; + + const samplers = json.samplers || {}; + const sampler = samplers[ textureDef.sampler ] || {}; + + texture.magFilter = WEBGL_FILTERS[ sampler.magFilter ] || LinearFilter; + texture.minFilter = WEBGL_FILTERS[ sampler.minFilter ] || LinearMipmapLinearFilter; + texture.wrapS = WEBGL_WRAPPINGS[ sampler.wrapS ] || RepeatWrapping; + texture.wrapT = WEBGL_WRAPPINGS[ sampler.wrapT ] || RepeatWrapping; + + parser.associations.set( texture, { textures: textureIndex } ); + + return texture; + + } ).catch( function () { + + console.error( 'THREE.GLTFLoader: Couldn\'t load texture', sourceURI ); + return null; + + } ); + + this.textureCache[ cacheKey ] = promise; + + return promise; + + } + + /** + * Asynchronously assigns a texture to the given material parameters. + * @param {Object} materialParams + * @param {string} mapName + * @param {Object} mapDef + * @return {Promise} + */ + assignTexture( materialParams, mapName, mapDef ) { + + const parser = this; + + return this.getDependency( 'texture', mapDef.index ).then( function ( texture ) { + + // Materials sample aoMap from UV set 1 and other maps from UV set 0 - this can't be configured + // However, we will copy UV set 0 to UV set 1 on demand for aoMap + if ( mapDef.texCoord !== undefined && mapDef.texCoord != 0 && ! ( mapName === 'aoMap' && mapDef.texCoord == 1 ) ) { + + console.warn( 'THREE.GLTFLoader: Custom UV set ' + mapDef.texCoord + ' for texture ' + mapName + ' not yet supported.' ); + + } + + if ( parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] ) { + + const transform = mapDef.extensions !== undefined ? mapDef.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] : undefined; + + if ( transform ) { + + const gltfReference = parser.associations.get( texture ); + texture = parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ].extendTexture( texture, transform ); + parser.associations.set( texture, gltfReference ); + + } + + } + + materialParams[ mapName ] = texture; + + return texture; + + } ); + + } + + /** + * Assigns final material to a Mesh, Line, or Points instance. The instance + * already has a material (generated from the glTF material options alone) + * but reuse of the same glTF material may require multiple threejs materials + * to accommodate different primitive types, defines, etc. New materials will + * be created if necessary, and reused from a cache. + * @param {Object3D} mesh Mesh, Line, or Points instance. + */ + assignFinalMaterial( mesh ) { + + const geometry = mesh.geometry; + let material = mesh.material; + + const useDerivativeTangents = geometry.attributes.tangent === undefined; + const useVertexColors = geometry.attributes.color !== undefined; + const useFlatShading = geometry.attributes.normal === undefined; + + if ( mesh.isPoints ) { + + const cacheKey = 'PointsMaterial:' + material.uuid; + + let pointsMaterial = this.cache.get( cacheKey ); + + if ( ! pointsMaterial ) { + + pointsMaterial = new PointsMaterial(); + Material.prototype.copy.call( pointsMaterial, material ); + pointsMaterial.color.copy( material.color ); + pointsMaterial.map = material.map; + pointsMaterial.sizeAttenuation = false; // glTF spec says points should be 1px + + this.cache.add( cacheKey, pointsMaterial ); + + } + + material = pointsMaterial; + + } else if ( mesh.isLine ) { + + const cacheKey = 'LineBasicMaterial:' + material.uuid; + + let lineMaterial = this.cache.get( cacheKey ); + + if ( ! lineMaterial ) { + + lineMaterial = new LineBasicMaterial(); + Material.prototype.copy.call( lineMaterial, material ); + lineMaterial.color.copy( material.color ); + + this.cache.add( cacheKey, lineMaterial ); + + } + + material = lineMaterial; + + } + + // Clone the material if it will be modified + if ( useDerivativeTangents || useVertexColors || useFlatShading ) { + + let cacheKey = 'ClonedMaterial:' + material.uuid + ':'; + + if ( material.isGLTFSpecularGlossinessMaterial ) cacheKey += 'specular-glossiness:'; + if ( useDerivativeTangents ) cacheKey += 'derivative-tangents:'; + if ( useVertexColors ) cacheKey += 'vertex-colors:'; + if ( useFlatShading ) cacheKey += 'flat-shading:'; + + let cachedMaterial = this.cache.get( cacheKey ); + + if ( ! cachedMaterial ) { + + cachedMaterial = material.clone(); + + if ( useVertexColors ) cachedMaterial.vertexColors = true; + if ( useFlatShading ) cachedMaterial.flatShading = true; + + if ( useDerivativeTangents ) { + + // https://github.com/mrdoob/three.js/issues/11438#issuecomment-507003995 + if ( cachedMaterial.normalScale ) cachedMaterial.normalScale.y *= - 1; + if ( cachedMaterial.clearcoatNormalScale ) cachedMaterial.clearcoatNormalScale.y *= - 1; + + } + + this.cache.add( cacheKey, cachedMaterial ); + + this.associations.set( cachedMaterial, this.associations.get( material ) ); + + } + + material = cachedMaterial; + + } + + // workarounds for mesh and geometry + + if ( material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined ) { + + geometry.setAttribute( 'uv2', geometry.attributes.uv ); + + } + + mesh.material = material; + + } + + getMaterialType( /* materialIndex */ ) { + + return MeshStandardMaterial; + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials + * @param {number} materialIndex + * @return {Promise} + */ + loadMaterial( materialIndex ) { + + const parser = this; + const json = this.json; + const extensions = this.extensions; + const materialDef = json.materials[ materialIndex ]; + + let materialType; + const materialParams = {}; + const materialExtensions = materialDef.extensions || {}; + + const pending = []; + + if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] ) { + + const sgExtension = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ]; + materialType = sgExtension.getMaterialType(); + pending.push( sgExtension.extendParams( materialParams, materialDef, parser ) ); + + } else if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ] ) { + + const kmuExtension = extensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ]; + materialType = kmuExtension.getMaterialType(); + pending.push( kmuExtension.extendParams( materialParams, materialDef, parser ) ); + + } else { + + // Specification: + // https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material + + const metallicRoughness = materialDef.pbrMetallicRoughness || {}; + + materialParams.color = new Color( 1.0, 1.0, 1.0 ); + materialParams.opacity = 1.0; + + if ( Array.isArray( metallicRoughness.baseColorFactor ) ) { + + const array = metallicRoughness.baseColorFactor; + + materialParams.color.fromArray( array ); + materialParams.opacity = array[ 3 ]; + + } + + if ( metallicRoughness.baseColorTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture ) ); + + } + + materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0; + materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0; + + if ( metallicRoughness.metallicRoughnessTexture !== undefined ) { + + pending.push( parser.assignTexture( materialParams, 'metalnessMap', metallicRoughness.metallicRoughnessTexture ) ); + pending.push( parser.assignTexture( materialParams, 'roughnessMap', metallicRoughness.metallicRoughnessTexture ) ); + + } + + materialType = this._invokeOne( function ( ext ) { + + return ext.getMaterialType && ext.getMaterialType( materialIndex ); + + } ); + + pending.push( Promise.all( this._invokeAll( function ( ext ) { + + return ext.extendMaterialParams && ext.extendMaterialParams( materialIndex, materialParams ); + + } ) ) ); + + } + + if ( materialDef.doubleSided === true ) { + + materialParams.side = DoubleSide; + + } + + const alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE; + + if ( alphaMode === ALPHA_MODES.BLEND ) { + + materialParams.transparent = true; + + // See: https://github.com/mrdoob/three.js/issues/17706 + materialParams.depthWrite = false; + + } else { + + materialParams.format = RGBFormat; + materialParams.transparent = false; + + if ( alphaMode === ALPHA_MODES.MASK ) { + + materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5; + + } + + } + + if ( materialDef.normalTexture !== undefined && materialType !== MeshBasicMaterial ) { + + pending.push( parser.assignTexture( materialParams, 'normalMap', materialDef.normalTexture ) ); + + materialParams.normalScale = new Vector2( 1, 1 ); + + if ( materialDef.normalTexture.scale !== undefined ) { + + const scale = materialDef.normalTexture.scale; + + materialParams.normalScale.set( scale, scale ); + + } + + } + + if ( materialDef.occlusionTexture !== undefined && materialType !== MeshBasicMaterial ) { + + pending.push( parser.assignTexture( materialParams, 'aoMap', materialDef.occlusionTexture ) ); + + if ( materialDef.occlusionTexture.strength !== undefined ) { + + materialParams.aoMapIntensity = materialDef.occlusionTexture.strength; + + } + + } + + if ( materialDef.emissiveFactor !== undefined && materialType !== MeshBasicMaterial ) { + + materialParams.emissive = new Color().fromArray( materialDef.emissiveFactor ); + + } + + if ( materialDef.emissiveTexture !== undefined && materialType !== MeshBasicMaterial ) { + + pending.push( parser.assignTexture( materialParams, 'emissiveMap', materialDef.emissiveTexture ) ); + + } + + return Promise.all( pending ).then( function () { + + let material; + + if ( materialType === GLTFMeshStandardSGMaterial ) { + + material = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams ); + + } else { + + material = new materialType( materialParams ); + + } + + if ( materialDef.name ) material.name = materialDef.name; + + // baseColorTexture, emissiveTexture, and specularGlossinessTexture use sRGB encoding. + if ( material.map ) material.map.encoding = sRGBEncoding; + if ( material.emissiveMap ) material.emissiveMap.encoding = sRGBEncoding; + + assignExtrasToUserData( material, materialDef ); + + parser.associations.set( material, { materials: materialIndex } ); + + if ( materialDef.extensions ) addUnknownExtensionsToUserData( extensions, material, materialDef ); + + return material; + + } ); + + } + + /** When Object3D instances are targeted by animation, they need unique names. */ + createUniqueName( originalName ) { + + const sanitizedName = PropertyBinding.sanitizeNodeName( originalName || '' ); + + let name = sanitizedName; + + for ( let i = 1; this.nodeNamesUsed[ name ]; ++ i ) { + + name = sanitizedName + '_' + i; + + } + + this.nodeNamesUsed[ name ] = true; + + return name; + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry + * + * Creates BufferGeometries from primitives. + * + * @param {Array} primitives + * @return {Promise>} + */ + loadGeometries( primitives ) { + + const parser = this; + const extensions = this.extensions; + const cache = this.primitiveCache; + + function createDracoPrimitive( primitive ) { + + return extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ] + .decodePrimitive( primitive, parser ) + .then( function ( geometry ) { + + return addPrimitiveAttributes( geometry, primitive, parser ); + + } ); + + } + + const pending = []; + + for ( let i = 0, il = primitives.length; i < il; i ++ ) { + + const primitive = primitives[ i ]; + const cacheKey = createPrimitiveKey( primitive ); + + // See if we've already created this geometry + const cached = cache[ cacheKey ]; + + if ( cached ) { + + // Use the cached geometry if it exists + pending.push( cached.promise ); + + } else { + + let geometryPromise; + + if ( primitive.extensions && primitive.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ] ) { + + // Use DRACO geometry if available + geometryPromise = createDracoPrimitive( primitive ); + + } else { + + // Otherwise create a new geometry + geometryPromise = addPrimitiveAttributes( new BufferGeometry(), primitive, parser ); + + } + + // Cache this geometry + cache[ cacheKey ] = { primitive: primitive, promise: geometryPromise }; + + pending.push( geometryPromise ); + + } + + } + + return Promise.all( pending ); + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes + * @param {number} meshIndex + * @return {Promise} + */ + loadMesh( meshIndex ) { + + const parser = this; + const json = this.json; + const extensions = this.extensions; + + const meshDef = json.meshes[ meshIndex ]; + const primitives = meshDef.primitives; + + const pending = []; + + for ( let i = 0, il = primitives.length; i < il; i ++ ) { + + const material = primitives[ i ].material === undefined + ? createDefaultMaterial( this.cache ) + : this.getDependency( 'material', primitives[ i ].material ); + + pending.push( material ); + + } + + pending.push( parser.loadGeometries( primitives ) ); + + return Promise.all( pending ).then( function ( results ) { + + const materials = results.slice( 0, results.length - 1 ); + const geometries = results[ results.length - 1 ]; + + const meshes = []; + + for ( let i = 0, il = geometries.length; i < il; i ++ ) { + + const geometry = geometries[ i ]; + const primitive = primitives[ i ]; + + // 1. create Mesh + + let mesh; + + const material = materials[ i ]; + + if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLES || + primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP || + primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN || + primitive.mode === undefined ) { + + // .isSkinnedMesh isn't in glTF spec. See ._markDefs() + mesh = meshDef.isSkinnedMesh === true + ? new SkinnedMesh( geometry, material ) + : new Mesh( geometry, material ); + + if ( mesh.isSkinnedMesh === true && ! mesh.geometry.attributes.skinWeight.normalized ) { + + // we normalize floating point skin weight array to fix malformed assets (see #15319) + // it's important to skip this for non-float32 data since normalizeSkinWeights assumes non-normalized inputs + mesh.normalizeSkinWeights(); + + } + + if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ) { + + mesh.geometry = toTrianglesDrawMode( mesh.geometry, TriangleStripDrawMode ); + + } else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) { + + mesh.geometry = toTrianglesDrawMode( mesh.geometry, TriangleFanDrawMode ); + + } + + } else if ( primitive.mode === WEBGL_CONSTANTS.LINES ) { + + mesh = new LineSegments( geometry, material ); + + } else if ( primitive.mode === WEBGL_CONSTANTS.LINE_STRIP ) { + + mesh = new Line( geometry, material ); + + } else if ( primitive.mode === WEBGL_CONSTANTS.LINE_LOOP ) { + + mesh = new LineLoop( geometry, material ); + + } else if ( primitive.mode === WEBGL_CONSTANTS.POINTS ) { + + mesh = new Points( geometry, material ); + + } else { + + throw new Error( 'THREE.GLTFLoader: Primitive mode unsupported: ' + primitive.mode ); + + } + + if ( Object.keys( mesh.geometry.morphAttributes ).length > 0 ) { + + updateMorphTargets( mesh, meshDef ); + + } + + mesh.name = parser.createUniqueName( meshDef.name || ( 'mesh_' + meshIndex ) ); + + assignExtrasToUserData( mesh, meshDef ); + + if ( primitive.extensions ) addUnknownExtensionsToUserData( extensions, mesh, primitive ); + + parser.assignFinalMaterial( mesh ); + + meshes.push( mesh ); + + } + + for ( let i = 0, il = meshes.length; i < il; i ++ ) { + + parser.associations.set( meshes[ i ], { + meshes: meshIndex, + primitives: i + } ); + + } + + if ( meshes.length === 1 ) { + + return meshes[ 0 ]; + + } + + const group = new Group(); + + parser.associations.set( group, { meshes: meshIndex } ); + + for ( let i = 0, il = meshes.length; i < il; i ++ ) { + + group.add( meshes[ i ] ); + + } + + return group; + + } ); + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras + * @param {number} cameraIndex + * @return {Promise} + */ + loadCamera( cameraIndex ) { + + let camera; + const cameraDef = this.json.cameras[ cameraIndex ]; + const params = cameraDef[ cameraDef.type ]; + + if ( ! params ) { + + console.warn( 'THREE.GLTFLoader: Missing camera parameters.' ); + return; + + } + + if ( cameraDef.type === 'perspective' ) { + + camera = new PerspectiveCamera( MathUtils.radToDeg( params.yfov ), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6 ); + + } else if ( cameraDef.type === 'orthographic' ) { + + camera = new OrthographicCamera( - params.xmag, params.xmag, params.ymag, - params.ymag, params.znear, params.zfar ); + + } + + if ( cameraDef.name ) camera.name = this.createUniqueName( cameraDef.name ); + + assignExtrasToUserData( camera, cameraDef ); + + return Promise.resolve( camera ); + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins + * @param {number} skinIndex + * @return {Promise} + */ + loadSkin( skinIndex ) { + + const skinDef = this.json.skins[ skinIndex ]; + + const skinEntry = { joints: skinDef.joints }; + + if ( skinDef.inverseBindMatrices === undefined ) { + + return Promise.resolve( skinEntry ); + + } + + return this.getDependency( 'accessor', skinDef.inverseBindMatrices ).then( function ( accessor ) { + + skinEntry.inverseBindMatrices = accessor; + + return skinEntry; + + } ); + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations + * @param {number} animationIndex + * @return {Promise} + */ + loadAnimation( animationIndex ) { + + const json = this.json; + + const animationDef = json.animations[ animationIndex ]; + + const pendingNodes = []; + const pendingInputAccessors = []; + const pendingOutputAccessors = []; + const pendingSamplers = []; + const pendingTargets = []; + + for ( let i = 0, il = animationDef.channels.length; i < il; i ++ ) { + + const channel = animationDef.channels[ i ]; + const sampler = animationDef.samplers[ channel.sampler ]; + const target = channel.target; + const name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated. + const input = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.input ] : sampler.input; + const output = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.output ] : sampler.output; + + pendingNodes.push( this.getDependency( 'node', name ) ); + pendingInputAccessors.push( this.getDependency( 'accessor', input ) ); + pendingOutputAccessors.push( this.getDependency( 'accessor', output ) ); + pendingSamplers.push( sampler ); + pendingTargets.push( target ); + + } + + return Promise.all( [ + + Promise.all( pendingNodes ), + Promise.all( pendingInputAccessors ), + Promise.all( pendingOutputAccessors ), + Promise.all( pendingSamplers ), + Promise.all( pendingTargets ) + + ] ).then( function ( dependencies ) { + + const nodes = dependencies[ 0 ]; + const inputAccessors = dependencies[ 1 ]; + const outputAccessors = dependencies[ 2 ]; + const samplers = dependencies[ 3 ]; + const targets = dependencies[ 4 ]; + + const tracks = []; + + for ( let i = 0, il = nodes.length; i < il; i ++ ) { + + const node = nodes[ i ]; + const inputAccessor = inputAccessors[ i ]; + const outputAccessor = outputAccessors[ i ]; + const sampler = samplers[ i ]; + const target = targets[ i ]; + + if ( node === undefined ) continue; + + node.updateMatrix(); + node.matrixAutoUpdate = true; + + let TypedKeyframeTrack; + + switch ( PATH_PROPERTIES[ target.path ] ) { + + case PATH_PROPERTIES.weights: + + TypedKeyframeTrack = NumberKeyframeTrack; + break; + + case PATH_PROPERTIES.rotation: + + TypedKeyframeTrack = QuaternionKeyframeTrack; + break; + + case PATH_PROPERTIES.position: + case PATH_PROPERTIES.scale: + default: + + TypedKeyframeTrack = VectorKeyframeTrack; + break; + + } + + const targetName = node.name ? node.name : node.uuid; + + const interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : InterpolateLinear; + + const targetNames = []; + + if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) { + + // Node may be a Group (glTF mesh with several primitives) or a Mesh. + node.traverse( function ( object ) { + + if ( object.isMesh === true && object.morphTargetInfluences ) { + + targetNames.push( object.name ? object.name : object.uuid ); + + } + + } ); + + } else { + + targetNames.push( targetName ); + + } + + let outputArray = outputAccessor.array; + + if ( outputAccessor.normalized ) { + + const scale = getNormalizedComponentScale( outputArray.constructor ); + const scaled = new Float32Array( outputArray.length ); + + for ( let j = 0, jl = outputArray.length; j < jl; j ++ ) { + + scaled[ j ] = outputArray[ j ] * scale; + + } + + outputArray = scaled; + + } + + for ( let j = 0, jl = targetNames.length; j < jl; j ++ ) { + + const track = new TypedKeyframeTrack( + targetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ], + inputAccessor.array, + outputArray, + interpolation + ); + + // Override interpolation with custom factory method. + if ( sampler.interpolation === 'CUBICSPLINE' ) { + + track.createInterpolant = function InterpolantFactoryMethodGLTFCubicSpline( result ) { + + // A CUBICSPLINE keyframe in glTF has three output values for each input value, + // representing inTangent, splineVertex, and outTangent. As a result, track.getValueSize() + // must be divided by three to get the interpolant's sampleSize argument. + + const interpolantType = ( this instanceof QuaternionKeyframeTrack ) ? GLTFCubicSplineQuaternionInterpolant : GLTFCubicSplineInterpolant; + + return new interpolantType( this.times, this.values, this.getValueSize() / 3, result ); + + }; + + // Mark as CUBICSPLINE. `track.getInterpolation()` doesn't support custom interpolants. + track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true; + + } + + tracks.push( track ); + + } + + } + + const name = animationDef.name ? animationDef.name : 'animation_' + animationIndex; + + return new AnimationClip( name, undefined, tracks ); + + } ); + + } + + createNodeMesh( nodeIndex ) { + + const json = this.json; + const parser = this; + const nodeDef = json.nodes[ nodeIndex ]; + + if ( nodeDef.mesh === undefined ) return null; + + return parser.getDependency( 'mesh', nodeDef.mesh ).then( function ( mesh ) { + + const node = parser._getNodeRef( parser.meshCache, nodeDef.mesh, mesh ); + + // if weights are provided on the node, override weights on the mesh. + if ( nodeDef.weights !== undefined ) { + + node.traverse( function ( o ) { + + if ( ! o.isMesh ) return; + + for ( let i = 0, il = nodeDef.weights.length; i < il; i ++ ) { + + o.morphTargetInfluences[ i ] = nodeDef.weights[ i ]; + + } + + } ); + + } + + return node; + + } ); + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy + * @param {number} nodeIndex + * @return {Promise} + */ + loadNode( nodeIndex ) { + + const json = this.json; + const extensions = this.extensions; + const parser = this; + + const nodeDef = json.nodes[ nodeIndex ]; + + // reserve node's name before its dependencies, so the root has the intended name. + const nodeName = nodeDef.name ? parser.createUniqueName( nodeDef.name ) : ''; + + return ( function () { + + const pending = []; + + const meshPromise = parser._invokeOne( function ( ext ) { + + return ext.createNodeMesh && ext.createNodeMesh( nodeIndex ); + + } ); + + if ( meshPromise ) { + + pending.push( meshPromise ); + + } + + if ( nodeDef.camera !== undefined ) { + + pending.push( parser.getDependency( 'camera', nodeDef.camera ).then( function ( camera ) { + + return parser._getNodeRef( parser.cameraCache, nodeDef.camera, camera ); + + } ) ); + + } + + parser._invokeAll( function ( ext ) { + + return ext.createNodeAttachment && ext.createNodeAttachment( nodeIndex ); + + } ).forEach( function ( promise ) { + + pending.push( promise ); + + } ); + + return Promise.all( pending ); + + }() ).then( function ( objects ) { + + let node; + + // .isBone isn't in glTF spec. See ._markDefs + if ( nodeDef.isBone === true ) { + + node = new Bone(); + + } else if ( objects.length > 1 ) { + + node = new Group(); + + } else if ( objects.length === 1 ) { + + node = objects[ 0 ]; + + } else { + + node = new Object3D(); + + } + + if ( node !== objects[ 0 ] ) { + + for ( let i = 0, il = objects.length; i < il; i ++ ) { + + node.add( objects[ i ] ); + + } + + } + + if ( nodeDef.name ) { + + node.userData.name = nodeDef.name; + node.name = nodeName; + + } + + assignExtrasToUserData( node, nodeDef ); + + if ( nodeDef.extensions ) addUnknownExtensionsToUserData( extensions, node, nodeDef ); + + if ( nodeDef.matrix !== undefined ) { + + const matrix = new Matrix4(); + matrix.fromArray( nodeDef.matrix ); + node.applyMatrix4( matrix ); + + } else { + + if ( nodeDef.translation !== undefined ) { + + node.position.fromArray( nodeDef.translation ); + + } + + if ( nodeDef.rotation !== undefined ) { + + node.quaternion.fromArray( nodeDef.rotation ); + + } + + if ( nodeDef.scale !== undefined ) { + + node.scale.fromArray( nodeDef.scale ); + + } + + } + + if ( ! parser.associations.has( node ) ) { + + parser.associations.set( node, {} ); + + } + + parser.associations.get( node ).nodes = nodeIndex; + + return node; + + } ); + + } + + /** + * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes + * @param {number} sceneIndex + * @return {Promise} + */ + loadScene( sceneIndex ) { + + const json = this.json; + const extensions = this.extensions; + const sceneDef = this.json.scenes[ sceneIndex ]; + const parser = this; + + // Loader returns Group, not Scene. + // See: https://github.com/mrdoob/three.js/issues/18342#issuecomment-578981172 + const scene = new Group(); + if ( sceneDef.name ) scene.name = parser.createUniqueName( sceneDef.name ); + + assignExtrasToUserData( scene, sceneDef ); + + if ( sceneDef.extensions ) addUnknownExtensionsToUserData( extensions, scene, sceneDef ); + + const nodeIds = sceneDef.nodes || []; + + const pending = []; + + for ( let i = 0, il = nodeIds.length; i < il; i ++ ) { + + pending.push( buildNodeHierarchy( nodeIds[ i ], scene, json, parser ) ); + + } + + return Promise.all( pending ).then( function () { + + // Removes dangling associations, associations that reference a node that + // didn't make it into the scene. + const reduceAssociations = ( node ) => { + + const reducedAssociations = new Map(); + + for ( const [ key, value ] of parser.associations ) { + + if ( key instanceof Material || key instanceof Texture ) { + + reducedAssociations.set( key, value ); + + } + + } + + node.traverse( ( node ) => { + + const mappings = parser.associations.get( node ); + + if ( mappings != null ) { + + reducedAssociations.set( node, mappings ); + + } + + } ); + + return reducedAssociations; + + }; + + parser.associations = reduceAssociations( scene ); + + return scene; + + } ); + + } + +} + +function buildNodeHierarchy( nodeId, parentObject, json, parser ) { + + const nodeDef = json.nodes[ nodeId ]; + + return parser.getDependency( 'node', nodeId ).then( function ( node ) { + + if ( nodeDef.skin === undefined ) return node; + + // build skeleton here as well + + let skinEntry; + + return parser.getDependency( 'skin', nodeDef.skin ).then( function ( skin ) { + + skinEntry = skin; + + const pendingJoints = []; + + for ( let i = 0, il = skinEntry.joints.length; i < il; i ++ ) { + + pendingJoints.push( parser.getDependency( 'node', skinEntry.joints[ i ] ) ); + + } + + return Promise.all( pendingJoints ); + + } ).then( function ( jointNodes ) { + + node.traverse( function ( mesh ) { + + if ( ! mesh.isMesh ) return; + + const bones = []; + const boneInverses = []; + + for ( let j = 0, jl = jointNodes.length; j < jl; j ++ ) { + + const jointNode = jointNodes[ j ]; + + if ( jointNode ) { + + bones.push( jointNode ); + + const mat = new Matrix4(); + + if ( skinEntry.inverseBindMatrices !== undefined ) { + + mat.fromArray( skinEntry.inverseBindMatrices.array, j * 16 ); + + } + + boneInverses.push( mat ); + + } else { + + console.warn( 'THREE.GLTFLoader: Joint "%s" could not be found.', skinEntry.joints[ j ] ); + + } + + } + + mesh.bind( new Skeleton( bones, boneInverses ), mesh.matrixWorld ); + + } ); + + return node; + + } ); + + } ).then( function ( node ) { + + // build node hierachy + + parentObject.add( node ); + + const pending = []; + + if ( nodeDef.children ) { + + const children = nodeDef.children; + + for ( let i = 0, il = children.length; i < il; i ++ ) { + + const child = children[ i ]; + pending.push( buildNodeHierarchy( child, node, json, parser ) ); + + } + + } + + return Promise.all( pending ); + + } ); + +} + +/** + * @param {BufferGeometry} geometry + * @param {GLTF.Primitive} primitiveDef + * @param {GLTFParser} parser + */ +function computeBounds( geometry, primitiveDef, parser ) { + + const attributes = primitiveDef.attributes; + + const box = new Box3(); + + if ( attributes.POSITION !== undefined ) { + + const accessor = parser.json.accessors[ attributes.POSITION ]; + + const min = accessor.min; + const max = accessor.max; + + // glTF requires 'min' and 'max', but VRM (which extends glTF) currently ignores that requirement. + + if ( min !== undefined && max !== undefined ) { + + box.set( + new Vector3( min[ 0 ], min[ 1 ], min[ 2 ] ), + new Vector3( max[ 0 ], max[ 1 ], max[ 2 ] ) + ); + + if ( accessor.normalized ) { + + const boxScale = getNormalizedComponentScale( WEBGL_COMPONENT_TYPES[ accessor.componentType ] ); + box.min.multiplyScalar( boxScale ); + box.max.multiplyScalar( boxScale ); + + } + + } else { + + console.warn( 'THREE.GLTFLoader: Missing min/max properties for accessor POSITION.' ); + + return; + + } + + } else { + + return; + + } + + const targets = primitiveDef.targets; + + if ( targets !== undefined ) { + + const maxDisplacement = new Vector3(); + const vector = new Vector3(); + + for ( let i = 0, il = targets.length; i < il; i ++ ) { + + const target = targets[ i ]; + + if ( target.POSITION !== undefined ) { + + const accessor = parser.json.accessors[ target.POSITION ]; + const min = accessor.min; + const max = accessor.max; + + // glTF requires 'min' and 'max', but VRM (which extends glTF) currently ignores that requirement. + + if ( min !== undefined && max !== undefined ) { + + // we need to get max of absolute components because target weight is [-1,1] + vector.setX( Math.max( Math.abs( min[ 0 ] ), Math.abs( max[ 0 ] ) ) ); + vector.setY( Math.max( Math.abs( min[ 1 ] ), Math.abs( max[ 1 ] ) ) ); + vector.setZ( Math.max( Math.abs( min[ 2 ] ), Math.abs( max[ 2 ] ) ) ); + + + if ( accessor.normalized ) { + + const boxScale = getNormalizedComponentScale( WEBGL_COMPONENT_TYPES[ accessor.componentType ] ); + vector.multiplyScalar( boxScale ); + + } + + // Note: this assumes that the sum of all weights is at most 1. This isn't quite correct - it's more conservative + // to assume that each target can have a max weight of 1. However, for some use cases - notably, when morph targets + // are used to implement key-frame animations and as such only two are active at a time - this results in very large + // boxes. So for now we make a box that's sometimes a touch too small but is hopefully mostly of reasonable size. + maxDisplacement.max( vector ); + + } else { + + console.warn( 'THREE.GLTFLoader: Missing min/max properties for accessor POSITION.' ); + + } + + } + + } + + // As per comment above this box isn't conservative, but has a reasonable size for a very large number of morph targets. + box.expandByVector( maxDisplacement ); + + } + + geometry.boundingBox = box; + + const sphere = new Sphere(); + + box.getCenter( sphere.center ); + sphere.radius = box.min.distanceTo( box.max ) / 2; + + geometry.boundingSphere = sphere; + +} + +/** + * @param {BufferGeometry} geometry + * @param {GLTF.Primitive} primitiveDef + * @param {GLTFParser} parser + * @return {Promise} + */ +function addPrimitiveAttributes( geometry, primitiveDef, parser ) { + + const attributes = primitiveDef.attributes; + + const pending = []; + + function assignAttributeAccessor( accessorIndex, attributeName ) { + + return parser.getDependency( 'accessor', accessorIndex ) + .then( function ( accessor ) { + + geometry.setAttribute( attributeName, accessor ); + + } ); + + } + + for ( const gltfAttributeName in attributes ) { + + const threeAttributeName = ATTRIBUTES[ gltfAttributeName ] || gltfAttributeName.toLowerCase(); + + // Skip attributes already provided by e.g. Draco extension. + if ( threeAttributeName in geometry.attributes ) continue; + + pending.push( assignAttributeAccessor( attributes[ gltfAttributeName ], threeAttributeName ) ); + + } + + if ( primitiveDef.indices !== undefined && ! geometry.index ) { + + const accessor = parser.getDependency( 'accessor', primitiveDef.indices ).then( function ( accessor ) { + + geometry.setIndex( accessor ); + + } ); + + pending.push( accessor ); + + } + + assignExtrasToUserData( geometry, primitiveDef ); + + computeBounds( geometry, primitiveDef, parser ); + + return Promise.all( pending ).then( function () { + + return primitiveDef.targets !== undefined + ? addMorphTargets( geometry, primitiveDef.targets, parser ) + : geometry; + + } ); + +} + +/** + * @param {BufferGeometry} geometry + * @param {Number} drawMode + * @return {BufferGeometry} + */ +function toTrianglesDrawMode( geometry, drawMode ) { + + let index = geometry.getIndex(); + + // generate index if not present + + if ( index === null ) { + + const indices = []; + + const position = geometry.getAttribute( 'position' ); + + if ( position !== undefined ) { + + for ( let i = 0; i < position.count; i ++ ) { + + indices.push( i ); + + } + + geometry.setIndex( indices ); + index = geometry.getIndex(); + + } else { + + console.error( 'THREE.GLTFLoader.toTrianglesDrawMode(): Undefined position attribute. Processing not possible.' ); + return geometry; + + } + + } + + // + + const numberOfTriangles = index.count - 2; + const newIndices = []; + + if ( drawMode === TriangleFanDrawMode ) { + + // gl.TRIANGLE_FAN + + for ( let i = 1; i <= numberOfTriangles; i ++ ) { + + newIndices.push( index.getX( 0 ) ); + newIndices.push( index.getX( i ) ); + newIndices.push( index.getX( i + 1 ) ); + + } + + } else { + + // gl.TRIANGLE_STRIP + + for ( let i = 0; i < numberOfTriangles; i ++ ) { + + if ( i % 2 === 0 ) { + + newIndices.push( index.getX( i ) ); + newIndices.push( index.getX( i + 1 ) ); + newIndices.push( index.getX( i + 2 ) ); + + + } else { + + newIndices.push( index.getX( i + 2 ) ); + newIndices.push( index.getX( i + 1 ) ); + newIndices.push( index.getX( i ) ); + + } + + } + + } + + if ( ( newIndices.length / 3 ) !== numberOfTriangles ) { + + console.error( 'THREE.GLTFLoader.toTrianglesDrawMode(): Unable to generate correct amount of triangles.' ); + + } + + // build final geometry + + const newGeometry = geometry.clone(); + newGeometry.setIndex( newIndices ); + + return newGeometry; + +} + +export { GLTFLoader }; diff --git a/public/three/examples/jsm/loaders/OBJLoader.js b/public/three/examples/jsm/loaders/OBJLoader.js new file mode 100644 index 0000000..745ae0e --- /dev/null +++ b/public/three/examples/jsm/loaders/OBJLoader.js @@ -0,0 +1,911 @@ +import { + BufferGeometry, + FileLoader, + Float32BufferAttribute, + Group, + LineBasicMaterial, + LineSegments, + Loader, + Material, + Mesh, + MeshPhongMaterial, + Points, + PointsMaterial, + Vector3 +} from '../../../build/three.module.js'; + +// o object_name | g group_name +const _object_pattern = /^[og]\s*(.+)?/; +// mtllib file_reference +const _material_library_pattern = /^mtllib /; +// usemtl material_name +const _material_use_pattern = /^usemtl /; +// usemap map_name +const _map_use_pattern = /^usemap /; + +const _vA = new Vector3(); +const _vB = new Vector3(); +const _vC = new Vector3(); + +const _ab = new Vector3(); +const _cb = new Vector3(); + +function ParserState() { + + const state = { + objects: [], + object: {}, + + vertices: [], + normals: [], + colors: [], + uvs: [], + + materials: {}, + materialLibraries: [], + + startObject: function ( name, fromDeclaration ) { + + // If the current object (initial from reset) is not from a g/o declaration in the parsed + // file. We need to use it for the first parsed g/o to keep things in sync. + if ( this.object && this.object.fromDeclaration === false ) { + + this.object.name = name; + this.object.fromDeclaration = ( fromDeclaration !== false ); + return; + + } + + const previousMaterial = ( this.object && typeof this.object.currentMaterial === 'function' ? this.object.currentMaterial() : undefined ); + + if ( this.object && typeof this.object._finalize === 'function' ) { + + this.object._finalize( true ); + + } + + this.object = { + name: name || '', + fromDeclaration: ( fromDeclaration !== false ), + + geometry: { + vertices: [], + normals: [], + colors: [], + uvs: [], + hasUVIndices: false + }, + materials: [], + smooth: true, + + startMaterial: function ( name, libraries ) { + + const previous = this._finalize( false ); + + // New usemtl declaration overwrites an inherited material, except if faces were declared + // after the material, then it must be preserved for proper MultiMaterial continuation. + if ( previous && ( previous.inherited || previous.groupCount <= 0 ) ) { + + this.materials.splice( previous.index, 1 ); + + } + + const material = { + index: this.materials.length, + name: name || '', + mtllib: ( Array.isArray( libraries ) && libraries.length > 0 ? libraries[ libraries.length - 1 ] : '' ), + smooth: ( previous !== undefined ? previous.smooth : this.smooth ), + groupStart: ( previous !== undefined ? previous.groupEnd : 0 ), + groupEnd: - 1, + groupCount: - 1, + inherited: false, + + clone: function ( index ) { + + const cloned = { + index: ( typeof index === 'number' ? index : this.index ), + name: this.name, + mtllib: this.mtllib, + smooth: this.smooth, + groupStart: 0, + groupEnd: - 1, + groupCount: - 1, + inherited: false + }; + cloned.clone = this.clone.bind( cloned ); + return cloned; + + } + }; + + this.materials.push( material ); + + return material; + + }, + + currentMaterial: function () { + + if ( this.materials.length > 0 ) { + + return this.materials[ this.materials.length - 1 ]; + + } + + return undefined; + + }, + + _finalize: function ( end ) { + + const lastMultiMaterial = this.currentMaterial(); + if ( lastMultiMaterial && lastMultiMaterial.groupEnd === - 1 ) { + + lastMultiMaterial.groupEnd = this.geometry.vertices.length / 3; + lastMultiMaterial.groupCount = lastMultiMaterial.groupEnd - lastMultiMaterial.groupStart; + lastMultiMaterial.inherited = false; + + } + + // Ignore objects tail materials if no face declarations followed them before a new o/g started. + if ( end && this.materials.length > 1 ) { + + for ( let mi = this.materials.length - 1; mi >= 0; mi -- ) { + + if ( this.materials[ mi ].groupCount <= 0 ) { + + this.materials.splice( mi, 1 ); + + } + + } + + } + + // Guarantee at least one empty material, this makes the creation later more straight forward. + if ( end && this.materials.length === 0 ) { + + this.materials.push( { + name: '', + smooth: this.smooth + } ); + + } + + return lastMultiMaterial; + + } + }; + + // Inherit previous objects material. + // Spec tells us that a declared material must be set to all objects until a new material is declared. + // If a usemtl declaration is encountered while this new object is being parsed, it will + // overwrite the inherited material. Exception being that there was already face declarations + // to the inherited material, then it will be preserved for proper MultiMaterial continuation. + + if ( previousMaterial && previousMaterial.name && typeof previousMaterial.clone === 'function' ) { + + const declared = previousMaterial.clone( 0 ); + declared.inherited = true; + this.object.materials.push( declared ); + + } + + this.objects.push( this.object ); + + }, + + finalize: function () { + + if ( this.object && typeof this.object._finalize === 'function' ) { + + this.object._finalize( true ); + + } + + }, + + parseVertexIndex: function ( value, len ) { + + const index = parseInt( value, 10 ); + return ( index >= 0 ? index - 1 : index + len / 3 ) * 3; + + }, + + parseNormalIndex: function ( value, len ) { + + const index = parseInt( value, 10 ); + return ( index >= 0 ? index - 1 : index + len / 3 ) * 3; + + }, + + parseUVIndex: function ( value, len ) { + + const index = parseInt( value, 10 ); + return ( index >= 0 ? index - 1 : index + len / 2 ) * 2; + + }, + + addVertex: function ( a, b, c ) { + + const src = this.vertices; + const dst = this.object.geometry.vertices; + + dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] ); + dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] ); + dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] ); + + }, + + addVertexPoint: function ( a ) { + + const src = this.vertices; + const dst = this.object.geometry.vertices; + + dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] ); + + }, + + addVertexLine: function ( a ) { + + const src = this.vertices; + const dst = this.object.geometry.vertices; + + dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] ); + + }, + + addNormal: function ( a, b, c ) { + + const src = this.normals; + const dst = this.object.geometry.normals; + + dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] ); + dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] ); + dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] ); + + }, + + addFaceNormal: function ( a, b, c ) { + + const src = this.vertices; + const dst = this.object.geometry.normals; + + _vA.fromArray( src, a ); + _vB.fromArray( src, b ); + _vC.fromArray( src, c ); + + _cb.subVectors( _vC, _vB ); + _ab.subVectors( _vA, _vB ); + _cb.cross( _ab ); + + _cb.normalize(); + + dst.push( _cb.x, _cb.y, _cb.z ); + dst.push( _cb.x, _cb.y, _cb.z ); + dst.push( _cb.x, _cb.y, _cb.z ); + + }, + + addColor: function ( a, b, c ) { + + const src = this.colors; + const dst = this.object.geometry.colors; + + if ( src[ a ] !== undefined ) dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] ); + if ( src[ b ] !== undefined ) dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] ); + if ( src[ c ] !== undefined ) dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] ); + + }, + + addUV: function ( a, b, c ) { + + const src = this.uvs; + const dst = this.object.geometry.uvs; + + dst.push( src[ a + 0 ], src[ a + 1 ] ); + dst.push( src[ b + 0 ], src[ b + 1 ] ); + dst.push( src[ c + 0 ], src[ c + 1 ] ); + + }, + + addDefaultUV: function () { + + const dst = this.object.geometry.uvs; + + dst.push( 0, 0 ); + dst.push( 0, 0 ); + dst.push( 0, 0 ); + + }, + + addUVLine: function ( a ) { + + const src = this.uvs; + const dst = this.object.geometry.uvs; + + dst.push( src[ a + 0 ], src[ a + 1 ] ); + + }, + + addFace: function ( a, b, c, ua, ub, uc, na, nb, nc ) { + + const vLen = this.vertices.length; + + let ia = this.parseVertexIndex( a, vLen ); + let ib = this.parseVertexIndex( b, vLen ); + let ic = this.parseVertexIndex( c, vLen ); + + this.addVertex( ia, ib, ic ); + this.addColor( ia, ib, ic ); + + // normals + + if ( na !== undefined && na !== '' ) { + + const nLen = this.normals.length; + + ia = this.parseNormalIndex( na, nLen ); + ib = this.parseNormalIndex( nb, nLen ); + ic = this.parseNormalIndex( nc, nLen ); + + this.addNormal( ia, ib, ic ); + + } else { + + this.addFaceNormal( ia, ib, ic ); + + } + + // uvs + + if ( ua !== undefined && ua !== '' ) { + + const uvLen = this.uvs.length; + + ia = this.parseUVIndex( ua, uvLen ); + ib = this.parseUVIndex( ub, uvLen ); + ic = this.parseUVIndex( uc, uvLen ); + + this.addUV( ia, ib, ic ); + + this.object.geometry.hasUVIndices = true; + + } else { + + // add placeholder values (for inconsistent face definitions) + + this.addDefaultUV(); + + } + + }, + + addPointGeometry: function ( vertices ) { + + this.object.geometry.type = 'Points'; + + const vLen = this.vertices.length; + + for ( let vi = 0, l = vertices.length; vi < l; vi ++ ) { + + const index = this.parseVertexIndex( vertices[ vi ], vLen ); + + this.addVertexPoint( index ); + this.addColor( index ); + + } + + }, + + addLineGeometry: function ( vertices, uvs ) { + + this.object.geometry.type = 'Line'; + + const vLen = this.vertices.length; + const uvLen = this.uvs.length; + + for ( let vi = 0, l = vertices.length; vi < l; vi ++ ) { + + this.addVertexLine( this.parseVertexIndex( vertices[ vi ], vLen ) ); + + } + + for ( let uvi = 0, l = uvs.length; uvi < l; uvi ++ ) { + + this.addUVLine( this.parseUVIndex( uvs[ uvi ], uvLen ) ); + + } + + } + + }; + + state.startObject( '', false ); + + return state; + +} + +// + +class OBJLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + this.materials = null; + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( this.manager ); + loader.setPath( this.path ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( this.withCredentials ); + loader.load( url, function ( text ) { + + try { + + onLoad( scope.parse( text ) ); + + } catch ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + + } + + }, onProgress, onError ); + + } + + setMaterials( materials ) { + + this.materials = materials; + + return this; + + } + + parse( text ) { + + const state = new ParserState(); + + if ( text.indexOf( '\r\n' ) !== - 1 ) { + + // This is faster than String.split with regex that splits on both + text = text.replace( /\r\n/g, '\n' ); + + } + + if ( text.indexOf( '\\\n' ) !== - 1 ) { + + // join lines separated by a line continuation character (\) + text = text.replace( /\\\n/g, '' ); + + } + + const lines = text.split( '\n' ); + let line = '', lineFirstChar = ''; + let lineLength = 0; + let result = []; + + // Faster to just trim left side of the line. Use if available. + const trimLeft = ( typeof ''.trimLeft === 'function' ); + + for ( let i = 0, l = lines.length; i < l; i ++ ) { + + line = lines[ i ]; + + line = trimLeft ? line.trimLeft() : line.trim(); + + lineLength = line.length; + + if ( lineLength === 0 ) continue; + + lineFirstChar = line.charAt( 0 ); + + // @todo invoke passed in handler if any + if ( lineFirstChar === '#' ) continue; + + if ( lineFirstChar === 'v' ) { + + const data = line.split( /\s+/ ); + + switch ( data[ 0 ] ) { + + case 'v': + state.vertices.push( + parseFloat( data[ 1 ] ), + parseFloat( data[ 2 ] ), + parseFloat( data[ 3 ] ) + ); + if ( data.length >= 7 ) { + + state.colors.push( + parseFloat( data[ 4 ] ), + parseFloat( data[ 5 ] ), + parseFloat( data[ 6 ] ) + + ); + + } else { + + // if no colors are defined, add placeholders so color and vertex indices match + + state.colors.push( undefined, undefined, undefined ); + + } + + break; + case 'vn': + state.normals.push( + parseFloat( data[ 1 ] ), + parseFloat( data[ 2 ] ), + parseFloat( data[ 3 ] ) + ); + break; + case 'vt': + state.uvs.push( + parseFloat( data[ 1 ] ), + parseFloat( data[ 2 ] ) + ); + break; + + } + + } else if ( lineFirstChar === 'f' ) { + + const lineData = line.substr( 1 ).trim(); + const vertexData = lineData.split( /\s+/ ); + const faceVertices = []; + + // Parse the face vertex data into an easy to work with format + + for ( let j = 0, jl = vertexData.length; j < jl; j ++ ) { + + const vertex = vertexData[ j ]; + + if ( vertex.length > 0 ) { + + const vertexParts = vertex.split( '/' ); + faceVertices.push( vertexParts ); + + } + + } + + // Draw an edge between the first vertex and all subsequent vertices to form an n-gon + + const v1 = faceVertices[ 0 ]; + + for ( let j = 1, jl = faceVertices.length - 1; j < jl; j ++ ) { + + const v2 = faceVertices[ j ]; + const v3 = faceVertices[ j + 1 ]; + + state.addFace( + v1[ 0 ], v2[ 0 ], v3[ 0 ], + v1[ 1 ], v2[ 1 ], v3[ 1 ], + v1[ 2 ], v2[ 2 ], v3[ 2 ] + ); + + } + + } else if ( lineFirstChar === 'l' ) { + + const lineParts = line.substring( 1 ).trim().split( ' ' ); + let lineVertices = []; + const lineUVs = []; + + if ( line.indexOf( '/' ) === - 1 ) { + + lineVertices = lineParts; + + } else { + + for ( let li = 0, llen = lineParts.length; li < llen; li ++ ) { + + const parts = lineParts[ li ].split( '/' ); + + if ( parts[ 0 ] !== '' ) lineVertices.push( parts[ 0 ] ); + if ( parts[ 1 ] !== '' ) lineUVs.push( parts[ 1 ] ); + + } + + } + + state.addLineGeometry( lineVertices, lineUVs ); + + } else if ( lineFirstChar === 'p' ) { + + const lineData = line.substr( 1 ).trim(); + const pointData = lineData.split( ' ' ); + + state.addPointGeometry( pointData ); + + } else if ( ( result = _object_pattern.exec( line ) ) !== null ) { + + // o object_name + // or + // g group_name + + // WORKAROUND: https://bugs.chromium.org/p/v8/issues/detail?id=2869 + // let name = result[ 0 ].substr( 1 ).trim(); + const name = ( ' ' + result[ 0 ].substr( 1 ).trim() ).substr( 1 ); + + state.startObject( name ); + + } else if ( _material_use_pattern.test( line ) ) { + + // material + + state.object.startMaterial( line.substring( 7 ).trim(), state.materialLibraries ); + + } else if ( _material_library_pattern.test( line ) ) { + + // mtl file + + state.materialLibraries.push( line.substring( 7 ).trim() ); + + } else if ( _map_use_pattern.test( line ) ) { + + // the line is parsed but ignored since the loader assumes textures are defined MTL files + // (according to https://www.okino.com/conv/imp_wave.htm, 'usemap' is the old-style Wavefront texture reference method) + + console.warn( 'THREE.OBJLoader: Rendering identifier "usemap" not supported. Textures must be defined in MTL files.' ); + + } else if ( lineFirstChar === 's' ) { + + result = line.split( ' ' ); + + // smooth shading + + // @todo Handle files that have varying smooth values for a set of faces inside one geometry, + // but does not define a usemtl for each face set. + // This should be detected and a dummy material created (later MultiMaterial and geometry groups). + // This requires some care to not create extra material on each smooth value for "normal" obj files. + // where explicit usemtl defines geometry groups. + // Example asset: examples/models/obj/cerberus/Cerberus.obj + + /* + * http://paulbourke.net/dataformats/obj/ + * or + * http://www.cs.utah.edu/~boulos/cs3505/obj_spec.pdf + * + * From chapter "Grouping" Syntax explanation "s group_number": + * "group_number is the smoothing group number. To turn off smoothing groups, use a value of 0 or off. + * Polygonal elements use group numbers to put elements in different smoothing groups. For free-form + * surfaces, smoothing groups are either turned on or off; there is no difference between values greater + * than 0." + */ + if ( result.length > 1 ) { + + const value = result[ 1 ].trim().toLowerCase(); + state.object.smooth = ( value !== '0' && value !== 'off' ); + + } else { + + // ZBrush can produce "s" lines #11707 + state.object.smooth = true; + + } + + const material = state.object.currentMaterial(); + if ( material ) material.smooth = state.object.smooth; + + } else { + + // Handle null terminated files without exception + if ( line === '\0' ) continue; + + console.warn( 'THREE.OBJLoader: Unexpected line: "' + line + '"' ); + + } + + } + + state.finalize(); + + const container = new Group(); + container.materialLibraries = [].concat( state.materialLibraries ); + + const hasPrimitives = ! ( state.objects.length === 1 && state.objects[ 0 ].geometry.vertices.length === 0 ); + + if ( hasPrimitives === true ) { + + for ( let i = 0, l = state.objects.length; i < l; i ++ ) { + + const object = state.objects[ i ]; + const geometry = object.geometry; + const materials = object.materials; + const isLine = ( geometry.type === 'Line' ); + const isPoints = ( geometry.type === 'Points' ); + let hasVertexColors = false; + + // Skip o/g line declarations that did not follow with any faces + if ( geometry.vertices.length === 0 ) continue; + + const buffergeometry = new BufferGeometry(); + + buffergeometry.setAttribute( 'position', new Float32BufferAttribute( geometry.vertices, 3 ) ); + + if ( geometry.normals.length > 0 ) { + + buffergeometry.setAttribute( 'normal', new Float32BufferAttribute( geometry.normals, 3 ) ); + + } + + if ( geometry.colors.length > 0 ) { + + hasVertexColors = true; + buffergeometry.setAttribute( 'color', new Float32BufferAttribute( geometry.colors, 3 ) ); + + } + + if ( geometry.hasUVIndices === true ) { + + buffergeometry.setAttribute( 'uv', new Float32BufferAttribute( geometry.uvs, 2 ) ); + + } + + // Create materials + + const createdMaterials = []; + + for ( let mi = 0, miLen = materials.length; mi < miLen; mi ++ ) { + + const sourceMaterial = materials[ mi ]; + const materialHash = sourceMaterial.name + '_' + sourceMaterial.smooth + '_' + hasVertexColors; + let material = state.materials[ materialHash ]; + + if ( this.materials !== null ) { + + material = this.materials.create( sourceMaterial.name ); + + // mtl etc. loaders probably can't create line materials correctly, copy properties to a line material. + if ( isLine && material && ! ( material instanceof LineBasicMaterial ) ) { + + const materialLine = new LineBasicMaterial(); + Material.prototype.copy.call( materialLine, material ); + materialLine.color.copy( material.color ); + material = materialLine; + + } else if ( isPoints && material && ! ( material instanceof PointsMaterial ) ) { + + const materialPoints = new PointsMaterial( { size: 10, sizeAttenuation: false } ); + Material.prototype.copy.call( materialPoints, material ); + materialPoints.color.copy( material.color ); + materialPoints.map = material.map; + material = materialPoints; + + } + + } + + if ( material === undefined ) { + + if ( isLine ) { + + material = new LineBasicMaterial(); + + } else if ( isPoints ) { + + material = new PointsMaterial( { size: 1, sizeAttenuation: false } ); + + } else { + + material = new MeshPhongMaterial(); + + } + + material.name = sourceMaterial.name; + material.flatShading = sourceMaterial.smooth ? false : true; + material.vertexColors = hasVertexColors; + + state.materials[ materialHash ] = material; + + } + + createdMaterials.push( material ); + + } + + // Create mesh + + let mesh; + + if ( createdMaterials.length > 1 ) { + + for ( let mi = 0, miLen = materials.length; mi < miLen; mi ++ ) { + + const sourceMaterial = materials[ mi ]; + buffergeometry.addGroup( sourceMaterial.groupStart, sourceMaterial.groupCount, mi ); + + } + + if ( isLine ) { + + mesh = new LineSegments( buffergeometry, createdMaterials ); + + } else if ( isPoints ) { + + mesh = new Points( buffergeometry, createdMaterials ); + + } else { + + mesh = new Mesh( buffergeometry, createdMaterials ); + + } + + } else { + + if ( isLine ) { + + mesh = new LineSegments( buffergeometry, createdMaterials[ 0 ] ); + + } else if ( isPoints ) { + + mesh = new Points( buffergeometry, createdMaterials[ 0 ] ); + + } else { + + mesh = new Mesh( buffergeometry, createdMaterials[ 0 ] ); + + } + + } + + mesh.name = object.name; + + container.add( mesh ); + + } + + } else { + + // if there is only the default parser state object with no geometry data, interpret data as point cloud + + if ( state.vertices.length > 0 ) { + + const material = new PointsMaterial( { size: 1, sizeAttenuation: false } ); + + const buffergeometry = new BufferGeometry(); + + buffergeometry.setAttribute( 'position', new Float32BufferAttribute( state.vertices, 3 ) ); + + if ( state.colors.length > 0 && state.colors[ 0 ] !== undefined ) { + + buffergeometry.setAttribute( 'color', new Float32BufferAttribute( state.colors, 3 ) ); + material.vertexColors = true; + + } + + const points = new Points( buffergeometry, material ); + container.add( points ); + + } + + } + + return container; + + } + +} + +export { OBJLoader }; diff --git a/public/three/examples/jsm/objects/Sky.js b/public/three/examples/jsm/objects/Sky.js new file mode 100644 index 0000000..0c8c708 --- /dev/null +++ b/public/three/examples/jsm/objects/Sky.js @@ -0,0 +1,219 @@ +import { + BackSide, + BoxGeometry, + Mesh, + ShaderMaterial, + UniformsUtils, + Vector3 +} from '../../../build/three.module.js'; + +/** + * Based on "A Practical Analytic Model for Daylight" + * aka The Preetham Model, the de facto standard analytic skydome model + * https://www.researchgate.net/publication/220720443_A_Practical_Analytic_Model_for_Daylight + * + * First implemented by Simon Wallner + * http://www.simonwallner.at/projects/atmospheric-scattering + * + * Improved by Martin Upitis + * http://blenderartists.org/forum/showthread.php?245954-preethams-sky-impementation-HDR + * + * Three.js integration by zz85 http://twitter.com/blurspline +*/ + +class Sky extends Mesh { + + constructor() { + + const shader = Sky.SkyShader; + + const material = new ShaderMaterial( { + name: 'SkyShader', + fragmentShader: shader.fragmentShader, + vertexShader: shader.vertexShader, + uniforms: UniformsUtils.clone( shader.uniforms ), + side: BackSide, + depthWrite: false + } ); + + super( new BoxGeometry( 1, 1, 1 ), material ); + + } + +} + +Sky.prototype.isSky = true; + +Sky.SkyShader = { + + uniforms: { + 'turbidity': { value: 2 }, + 'rayleigh': { value: 1 }, + 'mieCoefficient': { value: 0.005 }, + 'mieDirectionalG': { value: 0.8 }, + 'sunPosition': { value: new Vector3() }, + 'up': { value: new Vector3( 0, 1, 0 ) } + }, + + vertexShader: /* glsl */` + uniform vec3 sunPosition; + uniform float rayleigh; + uniform float turbidity; + uniform float mieCoefficient; + uniform vec3 up; + + varying vec3 vWorldPosition; + varying vec3 vSunDirection; + varying float vSunfade; + varying vec3 vBetaR; + varying vec3 vBetaM; + varying float vSunE; + + // constants for atmospheric scattering + const float e = 2.71828182845904523536028747135266249775724709369995957; + const float pi = 3.141592653589793238462643383279502884197169; + + // wavelength of used primaries, according to preetham + const vec3 lambda = vec3( 680E-9, 550E-9, 450E-9 ); + // this pre-calcuation replaces older TotalRayleigh(vec3 lambda) function: + // (8.0 * pow(pi, 3.0) * pow(pow(n, 2.0) - 1.0, 2.0) * (6.0 + 3.0 * pn)) / (3.0 * N * pow(lambda, vec3(4.0)) * (6.0 - 7.0 * pn)) + const vec3 totalRayleigh = vec3( 5.804542996261093E-6, 1.3562911419845635E-5, 3.0265902468824876E-5 ); + + // mie stuff + // K coefficient for the primaries + const float v = 4.0; + const vec3 K = vec3( 0.686, 0.678, 0.666 ); + // MieConst = pi * pow( ( 2.0 * pi ) / lambda, vec3( v - 2.0 ) ) * K + const vec3 MieConst = vec3( 1.8399918514433978E14, 2.7798023919660528E14, 4.0790479543861094E14 ); + + // earth shadow hack + // cutoffAngle = pi / 1.95; + const float cutoffAngle = 1.6110731556870734; + const float steepness = 1.5; + const float EE = 1000.0; + + float sunIntensity( float zenithAngleCos ) { + zenithAngleCos = clamp( zenithAngleCos, -1.0, 1.0 ); + return EE * max( 0.0, 1.0 - pow( e, -( ( cutoffAngle - acos( zenithAngleCos ) ) / steepness ) ) ); + } + + vec3 totalMie( float T ) { + float c = ( 0.2 * T ) * 10E-18; + return 0.434 * c * MieConst; + } + + void main() { + + vec4 worldPosition = modelMatrix * vec4( position, 1.0 ); + vWorldPosition = worldPosition.xyz; + + gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 ); + gl_Position.z = gl_Position.w; // set z to camera.far + + vSunDirection = normalize( sunPosition ); + + vSunE = sunIntensity( dot( vSunDirection, up ) ); + + vSunfade = 1.0 - clamp( 1.0 - exp( ( sunPosition.y / 450000.0 ) ), 0.0, 1.0 ); + + float rayleighCoefficient = rayleigh - ( 1.0 * ( 1.0 - vSunfade ) ); + + // extinction (absorbtion + out scattering) + // rayleigh coefficients + vBetaR = totalRayleigh * rayleighCoefficient; + + // mie coefficients + vBetaM = totalMie( turbidity ) * mieCoefficient; + + }`, + + fragmentShader: /* glsl */` + varying vec3 vWorldPosition; + varying vec3 vSunDirection; + varying float vSunfade; + varying vec3 vBetaR; + varying vec3 vBetaM; + varying float vSunE; + + uniform float mieDirectionalG; + uniform vec3 up; + + const vec3 cameraPos = vec3( 0.0, 0.0, 0.0 ); + + // constants for atmospheric scattering + const float pi = 3.141592653589793238462643383279502884197169; + + const float n = 1.0003; // refractive index of air + const float N = 2.545E25; // number of molecules per unit volume for air at 288.15K and 1013mb (sea level -45 celsius) + + // optical length at zenith for molecules + const float rayleighZenithLength = 8.4E3; + const float mieZenithLength = 1.25E3; + // 66 arc seconds -> degrees, and the cosine of that + const float sunAngularDiameterCos = 0.999956676946448443553574619906976478926848692873900859324; + + // 3.0 / ( 16.0 * pi ) + const float THREE_OVER_SIXTEENPI = 0.05968310365946075; + // 1.0 / ( 4.0 * pi ) + const float ONE_OVER_FOURPI = 0.07957747154594767; + + float rayleighPhase( float cosTheta ) { + return THREE_OVER_SIXTEENPI * ( 1.0 + pow( cosTheta, 2.0 ) ); + } + + float hgPhase( float cosTheta, float g ) { + float g2 = pow( g, 2.0 ); + float inverse = 1.0 / pow( 1.0 - 2.0 * g * cosTheta + g2, 1.5 ); + return ONE_OVER_FOURPI * ( ( 1.0 - g2 ) * inverse ); + } + + void main() { + + vec3 direction = normalize( vWorldPosition - cameraPos ); + + // optical length + // cutoff angle at 90 to avoid singularity in next formula. + float zenithAngle = acos( max( 0.0, dot( up, direction ) ) ); + float inverse = 1.0 / ( cos( zenithAngle ) + 0.15 * pow( 93.885 - ( ( zenithAngle * 180.0 ) / pi ), -1.253 ) ); + float sR = rayleighZenithLength * inverse; + float sM = mieZenithLength * inverse; + + // combined extinction factor + vec3 Fex = exp( -( vBetaR * sR + vBetaM * sM ) ); + + // in scattering + float cosTheta = dot( direction, vSunDirection ); + + float rPhase = rayleighPhase( cosTheta * 0.5 + 0.5 ); + vec3 betaRTheta = vBetaR * rPhase; + + float mPhase = hgPhase( cosTheta, mieDirectionalG ); + vec3 betaMTheta = vBetaM * mPhase; + + vec3 Lin = pow( vSunE * ( ( betaRTheta + betaMTheta ) / ( vBetaR + vBetaM ) ) * ( 1.0 - Fex ), vec3( 1.5 ) ); + Lin *= mix( vec3( 1.0 ), pow( vSunE * ( ( betaRTheta + betaMTheta ) / ( vBetaR + vBetaM ) ) * Fex, vec3( 1.0 / 2.0 ) ), clamp( pow( 1.0 - dot( up, vSunDirection ), 5.0 ), 0.0, 1.0 ) ); + + // nightsky + float theta = acos( direction.y ); // elevation --> y-axis, [-pi/2, pi/2] + float phi = atan( direction.z, direction.x ); // azimuth --> x-axis [-pi/2, pi/2] + vec2 uv = vec2( phi, theta ) / vec2( 2.0 * pi, pi ) + vec2( 0.5, 0.0 ); + vec3 L0 = vec3( 0.1 ) * Fex; + + // composition + solar disc + float sundisk = smoothstep( sunAngularDiameterCos, sunAngularDiameterCos + 0.00002, cosTheta ); + L0 += ( vSunE * 19000.0 * Fex ) * sundisk; + + vec3 texColor = ( Lin + L0 ) * 0.04 + vec3( 0.0, 0.0003, 0.00075 ); + + vec3 retColor = pow( texColor, vec3( 1.0 / ( 1.2 + ( 1.2 * vSunfade ) ) ) ); + + gl_FragColor = vec4( retColor, 1.0 ); + + #include + #include + + }` + +}; + +export { Sky }; diff --git a/public/three/examples/jsm/objects/Water.js b/public/three/examples/jsm/objects/Water.js new file mode 100644 index 0000000..e179699 --- /dev/null +++ b/public/three/examples/jsm/objects/Water.js @@ -0,0 +1,344 @@ +import { + Color, + FrontSide, + LinearFilter, + MathUtils, + Matrix4, + Mesh, + PerspectiveCamera, + Plane, + RGBFormat, + ShaderMaterial, + UniformsLib, + UniformsUtils, + Vector3, + Vector4, + WebGLRenderTarget +} from '../../../build/three.module.js'; + +/** + * Work based on : + * http://slayvin.net : Flat mirror for three.js + * http://www.adelphi.edu/~stemkoski : An implementation of water shader based on the flat mirror + * http://29a.ch/ && http://29a.ch/slides/2012/webglwater/ : Water shader explanations in WebGL + */ + +class Water extends Mesh { + + constructor(geometry, options = {}) { + + super(geometry); + + const scope = this; + + const textureWidth = options.textureWidth !== undefined ? options.textureWidth : 512; + const textureHeight = options.textureHeight !== undefined ? options.textureHeight : 512; + + const clipBias = options.clipBias !== undefined ? options.clipBias : 0.0; + const alpha = options.alpha !== undefined ? options.alpha : 1.0; + const time = options.time !== undefined ? options.time : 0.0; + const normalSampler = options.waterNormals !== undefined ? options.waterNormals : null; + const sunDirection = options.sunDirection !== undefined ? options.sunDirection : new Vector3(0.70707, 0.70707, 0.0); + const sunColor = new Color(options.sunColor !== undefined ? options.sunColor : 0xffffff); + const waterColor = new Color(options.waterColor !== undefined ? options.waterColor : 0x7F7F7F); + const eye = options.eye !== undefined ? options.eye : new Vector3(0, 0, 0); + const distortionScale = options.distortionScale !== undefined ? options.distortionScale : 20.0; + const side = options.side !== undefined ? options.side : FrontSide; + const fog = options.fog !== undefined ? options.fog : false; + + // + + const mirrorPlane = new Plane(); + const normal = new Vector3(); + const mirrorWorldPosition = new Vector3(); + const cameraWorldPosition = new Vector3(); + const rotationMatrix = new Matrix4(); + const lookAtPosition = new Vector3(0, 0, - 1); + const clipPlane = new Vector4(); + + const view = new Vector3(); + const target = new Vector3(); + const q = new Vector4(); + + const textureMatrix = new Matrix4(); + + const mirrorCamera = new PerspectiveCamera(); + + const parameters = { + minFilter: LinearFilter, + magFilter: LinearFilter, + format: RGBFormat + }; + + const renderTarget = new WebGLRenderTarget(textureWidth, textureHeight, parameters); + + if (!MathUtils.isPowerOfTwo(textureWidth) || !MathUtils.isPowerOfTwo(textureHeight)) { + + renderTarget.texture.generateMipmaps = false; + + } + + const mirrorShader = { + + uniforms: UniformsUtils.merge([ + UniformsLib['fog'], + UniformsLib['lights'], + { + 'normalSampler': { value: null }, + 'mirrorSampler': { value: null }, + 'alpha': { value: 1.0 }, + 'time': { value: 0.0 }, + 'size': { value: 1.0 }, + 'distortionScale': { value: 20.0 }, + 'textureMatrix': { value: new Matrix4() }, + 'sunColor': { value: new Color(0x7F7F7F) }, + 'sunDirection': { value: new Vector3(0.70707, 0.70707, 0) }, + 'eye': { value: new Vector3() }, + 'waterColor': { value: new Color(0x555555) } + } + ]), + + vertexShader: /* glsl */` + uniform mat4 textureMatrix; + uniform float time; + + varying vec4 mirrorCoord; + varying vec4 worldPosition; + + #include + #include + #include + #include + + void main() { + mirrorCoord = modelMatrix * vec4( position, 1.0 ); + worldPosition = mirrorCoord.xyzw; + mirrorCoord = textureMatrix * mirrorCoord; + vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 ); + gl_Position = projectionMatrix * mvPosition; + + #include + #include + #include + #include + #include + }`, + + fragmentShader: /* glsl */` + uniform sampler2D mirrorSampler; + uniform float alpha; + uniform float time; + uniform float size; + uniform float distortionScale; + uniform sampler2D normalSampler; + uniform vec3 sunColor; + uniform vec3 sunDirection; + uniform vec3 eye; + uniform vec3 waterColor; + + varying vec4 mirrorCoord; + varying vec4 worldPosition; + + vec4 getNoise( vec2 uv ) { + vec2 uv0 = ( uv / 103.0 ) + vec2(time / 17.0, time / 29.0); + vec2 uv1 = uv / 107.0-vec2( time / -19.0, time / 31.0 ); + vec2 uv2 = uv / vec2( 8907.0, 9803.0 ) + vec2( time / 101.0, time / 97.0 ); + vec2 uv3 = uv / vec2( 1091.0, 1027.0 ) - vec2( time / 109.0, time / -113.0 ); + vec4 noise = texture2D( normalSampler, uv0 ) + + texture2D( normalSampler, uv1 ) + + texture2D( normalSampler, uv2 ) + + texture2D( normalSampler, uv3 ); + return noise * 0.5 - 1.0; + } + + void sunLight( const vec3 surfaceNormal, const vec3 eyeDirection, float shiny, float spec, float diffuse, inout vec3 diffuseColor, inout vec3 specularColor ) { + vec3 reflection = normalize( reflect( -sunDirection, surfaceNormal ) ); + float direction = max( 0.0, dot( eyeDirection, reflection ) ); + specularColor += pow( direction, shiny ) * sunColor * spec; + diffuseColor += max( dot( sunDirection, surfaceNormal ), 0.0 ) * sunColor * diffuse; + } + + #include + #include + #include + #include + #include + #include + #include + #include + + void main() { + + #include + vec4 noise = getNoise( worldPosition.xz * size ); + vec3 surfaceNormal = normalize( noise.xzy * vec3( 1.5, 1.0, 1.5 ) ); + + vec3 diffuseLight = vec3(0.0); + vec3 specularLight = vec3(0.0); + + vec3 worldToEye = eye-worldPosition.xyz; + vec3 eyeDirection = normalize( worldToEye ); + sunLight( surfaceNormal, eyeDirection, 100.0, 2.0, 0.5, diffuseLight, specularLight ); + + float distance = length(worldToEye); + + vec2 distortion = surfaceNormal.xz * ( 0.001 + 1.0 / distance ) * distortionScale; + vec3 reflectionSample = vec3( texture2D( mirrorSampler, mirrorCoord.xy / mirrorCoord.w + distortion ) ); + + float theta = max( dot( eyeDirection, surfaceNormal ), 0.0 ); + float rf0 = 0.3; + float reflectance = rf0 + ( 1.0 - rf0 ) * pow( ( 1.0 - theta ), 5.0 ); + vec3 scatter = max( 0.0, dot( surfaceNormal, eyeDirection ) ) * waterColor; + vec3 albedo = mix( ( sunColor * diffuseLight * 0.3 + scatter ) * getShadowMask(), ( vec3( 0.1 ) + reflectionSample * 0.9 + reflectionSample * specularLight ), reflectance); + vec3 outgoingLight = albedo; + gl_FragColor = vec4( outgoingLight, alpha ); + + #include + #include + }` + + }; + + const material = new ShaderMaterial({ + fragmentShader: mirrorShader.fragmentShader, + vertexShader: mirrorShader.vertexShader, + uniforms: UniformsUtils.clone(mirrorShader.uniforms), + lights: true, + side: side, + fog: fog + }); + + material.uniforms['mirrorSampler'].value = renderTarget.texture; + material.uniforms['textureMatrix'].value = textureMatrix; + material.uniforms['alpha'].value = alpha; + material.uniforms['time'].value = time; + material.uniforms['normalSampler'].value = normalSampler; + material.uniforms['sunColor'].value = sunColor; + material.uniforms['waterColor'].value = waterColor; + material.uniforms['sunDirection'].value = sunDirection; + material.uniforms['distortionScale'].value = distortionScale; + + material.uniforms['eye'].value = eye; + + scope.material = material; + + scope.onBeforeRender = function (renderer, scene, camera) { + + mirrorWorldPosition.setFromMatrixPosition(scope.matrixWorld); + cameraWorldPosition.setFromMatrixPosition(camera.matrixWorld); + + rotationMatrix.extractRotation(scope.matrixWorld); + + normal.set(0, 0, 1); + normal.applyMatrix4(rotationMatrix); + + view.subVectors(mirrorWorldPosition, cameraWorldPosition); + + // Avoid rendering when mirror is facing away + + if (view.dot(normal) > 0) return; + + view.reflect(normal).negate(); + view.add(mirrorWorldPosition); + + rotationMatrix.extractRotation(camera.matrixWorld); + + lookAtPosition.set(0, 0, - 1); + lookAtPosition.applyMatrix4(rotationMatrix); + lookAtPosition.add(cameraWorldPosition); + + target.subVectors(mirrorWorldPosition, lookAtPosition); + target.reflect(normal).negate(); + target.add(mirrorWorldPosition); + + mirrorCamera.position.copy(view); + mirrorCamera.up.set(0, 1, 0); + mirrorCamera.up.applyMatrix4(rotationMatrix); + mirrorCamera.up.reflect(normal); + mirrorCamera.lookAt(target); + + mirrorCamera.far = camera.far; // Used in WebGLBackground + + mirrorCamera.updateMatrixWorld(); + mirrorCamera.projectionMatrix.copy(camera.projectionMatrix); + + // Update the texture matrix + textureMatrix.set( + 0.5, 0.0, 0.0, 0.5, + 0.0, 0.5, 0.0, 0.5, + 0.0, 0.0, 0.5, 0.5, + 0.0, 0.0, 0.0, 1.0 + ); + textureMatrix.multiply(mirrorCamera.projectionMatrix); + textureMatrix.multiply(mirrorCamera.matrixWorldInverse); + + // Now update projection matrix with new clip plane, implementing code from: http://www.terathon.com/code/oblique.html + // Paper explaining this technique: http://www.terathon.com/lengyel/Lengyel-Oblique.pdf + mirrorPlane.setFromNormalAndCoplanarPoint(normal, mirrorWorldPosition); + mirrorPlane.applyMatrix4(mirrorCamera.matrixWorldInverse); + + clipPlane.set(mirrorPlane.normal.x, mirrorPlane.normal.y, mirrorPlane.normal.z, mirrorPlane.constant); + + const projectionMatrix = mirrorCamera.projectionMatrix; + + q.x = (Math.sign(clipPlane.x) + projectionMatrix.elements[8]) / projectionMatrix.elements[0]; + q.y = (Math.sign(clipPlane.y) + projectionMatrix.elements[9]) / projectionMatrix.elements[5]; + q.z = - 1.0; + q.w = (1.0 + projectionMatrix.elements[10]) / projectionMatrix.elements[14]; + + // Calculate the scaled plane vector + clipPlane.multiplyScalar(2.0 / clipPlane.dot(q)); + + // Replacing the third row of the projection matrix + projectionMatrix.elements[2] = clipPlane.x; + projectionMatrix.elements[6] = clipPlane.y; + projectionMatrix.elements[10] = clipPlane.z + 1.0 - clipBias; + projectionMatrix.elements[14] = clipPlane.w; + + eye.setFromMatrixPosition(camera.matrixWorld); + + // Render + + const currentRenderTarget = renderer.getRenderTarget(); + + const currentXrEnabled = renderer.xr.enabled; + const currentShadowAutoUpdate = renderer.shadowMap.autoUpdate; + + scope.visible = false; + + renderer.xr.enabled = false; // Avoid camera modification and recursion + renderer.shadowMap.autoUpdate = false; // Avoid re-computing shadows + + renderer.setRenderTarget(renderTarget); + + renderer.state.buffers.depth.setMask(true); // make sure the depth buffer is writable so it can be properly cleared, see #18897 + + if (renderer.autoClear === false) renderer.clear(); + renderer.render(scene, mirrorCamera); + + scope.visible = true; + + renderer.xr.enabled = currentXrEnabled; + renderer.shadowMap.autoUpdate = currentShadowAutoUpdate; + + renderer.setRenderTarget(currentRenderTarget); + + // Restore viewport + + const viewport = camera.viewport; + + if (viewport !== undefined) { + + renderer.state.viewport(viewport); + + } + + }; + + } + +} + +Water.prototype.isWater = true; + +export { Water }; diff --git a/public/three/examples/main.css b/public/three/examples/main.css new file mode 100644 index 0000000..7a6a2c6 --- /dev/null +++ b/public/three/examples/main.css @@ -0,0 +1,93 @@ +body { + margin: 0; + background-color: #000; + color: #fff; + font-size: 13px; + line-height: 24px; + overscroll-behavior: none; + overflow: hidden; +} + +a { + color: #ff0; + text-decoration: none; +} + +a:hover { + text-decoration: underline; +} + 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useRequest from '../../utils/useRequest'; +import { adnmExact, fetchAdcdTree } from '../../models/_/adcd'; + + +function treeItems(adcdObj, endsWith, itemLabelClicked) { + const noChildren = ( + !adcdObj.children || + adcdObj.children.length === 0 || + (endsWith && !adcdObj.ADCD.endsWith(endsWith + '000')) + ); + + let children = null; + if (!noChildren) { + children = adcdObj.children.map(o => treeItems(o, endsWith, itemLabelClicked)) + } + + return ( + + {children} + + ) +} + +function AdcdTreeSelect({ rootAdcd, endsWith, onChange, maxHeight, value, variant, label, fullWidth, helperText }) { + + const [treeAnchorEl, setTreeAnchorEl] = React.useState(null); + const rootRef = useRef(null); + const width = rootRef.current ? rootRef.current.offsetWidth : 100; + if (width < 100) { + width = 100; + } + + const { data } = useRequest(fetchAdcdTree, rootAdcd); + + const handleClick = (event) => { + event.preventDefault(); + setTreeAnchorEl(rootRef.current || event.currentTarget); + }; + + const handleClose = () => { + setTreeAnchorEl(null); + }; + + const onNodeSelect = (event, value) => { + onChange && onChange(value); + } + + const itemLabelClicked = (e) => { + e.preventDefault(); + setTreeAnchorEl(null); + } + + return ( +
+ + +
+
+ { + data ? ( + } + defaultExpandIcon={} + defaultExpanded={[data.ADCD]} + onNodeSelect={onNodeSelect} + > + {treeItems(data, endsWith, itemLabelClicked)} + + ) : null + } +
+
+ +
+ ) +} + +export default AdcdTreeSelect; diff --git a/src/components/Crud/BasicCrudModal.js b/src/components/Crud/BasicCrudModal.js new file mode 100644 index 0000000..bcb8fb9 --- /dev/null +++ b/src/components/Crud/BasicCrudModal.js @@ -0,0 +1,143 @@ +import React from 'react'; +import { STR_EDIT, STR_SAVE, STR_DEL, STR_RESTORE } from './_'; +import DpPaperComponent from '../../layouts/mui/DpPaperCompanent'; +import DpBackgroundDrop from '../../layouts/mui/DpBackdrop'; +import { Dialog, Snackbar, Typography } from '@material-ui/core'; +import DpAppBar from '../../layouts/mui/DpAppBar'; +import DpCloseButton from '../../layouts/mui/DpCloseButton'; +import { Alert } from '@material-ui/lab'; + + +class BasicCrudModal extends React.Component { + constructor(props) { + super(props); + + this.state = { + record: null, + open: false, + mode: null, + message: null, + }; + } + + showEdit(record) { + this.setState({ record, open: true, mode: STR_EDIT }); + } + + showSave(record) { + record = record || {}; + this.setState({ record, open: true, mode: STR_SAVE }); + } + + onEdit = (values) => { + this.props.service.edit(values).then((result) => { + if (result) { + this.setState({ open: false, message: { type: 'success', content: '操作成功' } }); + if (this.props.onCrudSuccess) { + this.props.onCrudSuccess(STR_EDIT, result); + } + } else { + this.setState({ message: { type: 'error', content: '操作失败' } }); + } + }) + } + + onSave = (values) => { + this.props.service.save(values).then((result) => { + if (result) { + this.setState({ open: false, message: { type: 'success', content: '操作成功' } }); + if (this.props.onCrudSuccess) { + this.props.onCrudSuccess(STR_SAVE, result); + } + } else { + this.setState({ message: { type: 'error', content: '操作失败' } }); + } + }) + } + + onDelete = (values) => { + this.props.service.del(values).then((result) => { + if (result) { + this.setState({ open: false, message: { type: 'success', content: '操作成功' } }); + if (this.props.onCrudSuccess) { + this.props.onCrudSuccess(STR_DEL, result); + } + } else { + this.setState({ message: { type: 'error', content: '操作失败' } }); + } + }) + } + + onRestore = (values) => { + this.props.service.restore(values).then((result) => { + if (result) { + this.setState({ open: false, message: { type: 'success', content: '操作成功' } }); + if (this.props.onCrudSuccess) { + this.props.onCrudSuccess(STR_RESTORE, result); + } + } else { + this.setState({ message: { type: 'error', content: '操作失败' } }); + } + }) + } + + handleCloseMessage = () => { + this.setState({ + message: null, + }) + } + + onClose = () => { + this.setState({ open: false }) + } + + render() { + const { record, open, mode, message } = this.state; + const { title, formProps, component: Component } = this.props; + + return ( + <> + { + record && open ? ( + +
+ + + {`${mode === STR_SAVE ? '增加' : '修改'}${title}`} + + + + +
+ + ) : null + } + + + { + message ? ( + + {message?.content} + + ) : null + } + + + ); + } +} + +export default BasicCrudModal; diff --git a/src/components/Crud/CrudOpRender.js b/src/components/Crud/CrudOpRender.js new file mode 100644 index 0000000..44655d5 --- /dev/null +++ b/src/components/Crud/CrudOpRender.js @@ -0,0 +1,31 @@ +import { Button, IconButton } from '@material-ui/core'; +import { Delete, Edit, Restore } from '@material-ui/icons'; +import React from 'react'; + +export default function CrudOpRender({ command, edit, del, restore }) { + return ( +
+ { + edit ? ( + + + + ) : null + } + { + restore ? ( + + + + ) : null + } + { + del ? ( + + + + ) : null + } +
+ ) +} diff --git a/src/components/Crud/_.js b/src/components/Crud/_.js new file mode 100644 index 0000000..c9ff64d --- /dev/null +++ b/src/components/Crud/_.js @@ -0,0 +1,65 @@ +const { httpget, httppost } = require("../../utils/request"); + + +const SORT_ORDER_MAP = { + ascend: 'asc', + descend: 'desc', +}; + + +export const STR_SAVE = 'save'; +export const STR_EDIT = 'edit'; +export const STR_DEL = 'del'; +export const STR_RESTORE = 'restore'; +export const STR_FIND = 'find'; + +export async function paginate(url, params = {}) { + const { pageNumber, pageSize, sort, search } = params; + + const reqParams = { + ...search, + page: pageNumber, + size: pageSize, + }; + + if (sort && sort.field) { + reqParams.sort_field = sort.field; + reqParams.sort_order = SORT_ORDER_MAP[sort.order] || 'asc'; + } + + const result = await httpget(url, reqParams); + if (result && result.data) { + const { data } = result; + return data; + } + + return { list: [], totalRow: 0 }; +} + +export function createCrudService(urlSet) { + const save = async (params) => { + const { code } = await httppost(urlSet[STR_SAVE], params) || {}; + return code === 200; + } + + const edit = async (params) => { + const { code } = await httppost(urlSet[STR_EDIT], params) || {}; + return code === 200; + } + + const del = async (params) => { + const { code } = await httppost(urlSet[STR_DEL], params) || {}; + return code === 200; + } + + const find = async (params) => { + return paginate(urlSet[STR_FIND], params); + } + + return { + [STR_SAVE]: save, + [STR_EDIT]: edit, + [STR_DEL]: del, + [STR_FIND]: find, + } +} diff --git a/src/components/Crud/usePageTableMui.js b/src/components/Crud/usePageTableMui.js new file mode 100644 index 0000000..1be6455 --- /dev/null +++ b/src/components/Crud/usePageTableMui.js @@ -0,0 +1,77 @@ +import { useState, useRef, useEffect } from 'react'; + + +function labelDisplayedRows({ from, to, count }) { + return `${from}-${to} / ${count}`; +} + +const usePageTableMui = (service, { defaultParams, defaultPageSize, defaultSort } = {}) => { + + const [state, setState] = useState(() => ({ + data: [], + total: 0, + loading: false, + pageSize: defaultPageSize || 10, + pageNumber: 0, + sort: defaultSort, + params: defaultParams || {}, + })); + + const abort = useRef(false); + useEffect(() => { + search(); + return () => { abort.current = true; } + }, []); + + const search = (opt) => { + opt = opt || {}; + setState(s => ({ ...s, loading: true })); + const pageParams = { + pageNumber: opt?.pageNumber ?? state.pageNumber, + pageSize: opt?.pageSize ?? state.pageSize, + sort: opt?.sort ?? state.sort, + params: opt?.params ?? state.params, + }; + service({ + pageNumber: pageParams.pageNumber + 1, + pageSize: pageParams.pageSize, + sort: pageParams.sort, + search: pageParams.params + }).then((data) => { + if (!abort.current) { + setState({ + ...pageParams, + data: data.list, + total: data.totalRow, + loading: false, + }) + } + }); + } + + const onChangePage = (event, newPage) => { + search({ pageNumber: newPage }); + }; + + const onChangeRowsPerPage = (event, val) => { + search({ pageSize: parseInt(event.target.value, 10), pageNumber: 0 }); + }; + + return { + pagination: { + rowsPerPage: state.pageSize, + page: state.pageNumber, + count: state.total, + rowsPerPageOptions: ['10', '20', '50', '100'], + labelDisplayedRows, + onChangePage, + onChangeRowsPerPage, + }, + loading: state.loading, + dataSource: state.data, + search: (params) => search({ pageNumber: 0, params }), + refresh: search, + } +} + +export default usePageTableMui diff --git a/src/components/DamGraph/CoordTrans.js b/src/components/DamGraph/CoordTrans.js new file mode 100644 index 0000000..e3ae347 --- /dev/null +++ b/src/components/DamGraph/CoordTrans.js @@ -0,0 +1,23 @@ +/* eslint-disable no-debugger */ +/* eslint-disable prefer-destructuring */ +class CoordTrans { + constructor(imgBound, geoBound) { + this._ix0 = imgBound[0]; + this._iy0 = imgBound[1]; + this._gx0 = geoBound[0]; + this._gy0 = geoBound[3]; + + this._sx = (imgBound[2] - imgBound[0]) / (geoBound[2] - geoBound[0]); + this._sy = (imgBound[1] - imgBound[3]) / (geoBound[3] - geoBound[1]); + } + + geo2imgX(val) { + return parseInt(this._ix0 + ((val - this._gx0) * this._sx) + 0.5, 10); + } + + geo2imgY(val) { + return parseInt(this._iy0 + ((val - this._gy0) * this._sy) + 0.5, 10); + } +} + +export default CoordTrans; diff --git a/src/components/DamGraph/DamData.js b/src/components/DamGraph/DamData.js new file mode 100644 index 0000000..504a540 --- /dev/null +++ b/src/components/DamGraph/DamData.js @@ -0,0 +1,67 @@ +/* eslint-disable no-debugger */ +/* eslint-disable prefer-destructuring */ +class DamData { + constructor({ stnm, damel, ddz, fsltdz, zcxsw }) { + this.stnm = stnm; + this.damel = damel; + this.ddz = ddz; + this.fsltdz = fsltdz; + this.zcxsw = zcxsw; + + this._shapePts = []; + this._bound = null; + } + + setDamShape(pts) { + if (pts.length < 2) { + return false; + } + const bound = [pts[0][0], pts[0][1], pts[0][0], pts[0][1]]; + for (const pt of pts) { + this._shapePts.push([pt[0], pt[1]]); + if (bound[0] > pt[0]) { + bound[0] = pt[0]; + } + if (bound[1] > pt[1]) { + bound[1] = pt[1]; + } + if (bound[2] < pt[0]) { + bound[2] = pt[0]; + } + if (bound[3] < pt[1]) { + bound[3] = pt[1]; + } + } + this._bound = bound; + return true; + } + + getDamShape() { + return this._shapePts.map(o => o); + } + + getBound() { + return this._bound.map(o => o); + } + + caculteShps(rz) { + const [x0, y0] = this._shapePts[0]; + const [x1, y1] = this._shapePts[1]; + const x = x0 + (((rz - y0) / (y1 - y0)) * (x1 - x0)); + + const fsltdzX = x0 + (((this.fsltdz - y0) / (y1 - y0)) * (x1 - x0)); + const zcxswX = x0 + (((this.zcxsw - y0) / (y1 - y0)) * (x1 - x0)); + + const gw = this._bound[2] - this._bound[0]; + + return { + rzShp: [[this._bound[0], rz], [x, rz], [x0, y0], [this._bound[0], y0]], + ddz: [[this._bound[0], this.ddz], [gw * 0.2, this.ddz]], + damel: [this._bound[2], this.damel], + fsltdz: [[fsltdzX, this.fsltdz], [fsltdzX - (gw * 0.2), this.fsltdz]], + zcxsw: [[zcxswX, this.zcxsw], [zcxswX + (gw * 0.1), this.zcxsw]], + }; + } +} + +export default DamData; diff --git a/src/components/DamGraph/DamGraph.js b/src/components/DamGraph/DamGraph.js new file mode 100644 index 0000000..43a4248 --- /dev/null +++ b/src/components/DamGraph/DamGraph.js @@ -0,0 +1,159 @@ +import Raphael from 'raphael'; + +import CoordTrans from './CoordTrans'; + +const GRAPH_MARGIN = [10, 60, 20, 0]; + + +class DamGraph { + constructor(canvasId, width, height) { + this._width = width; + this._height = height; + this._paper = Raphael(canvasId, width, height); + } + + linePath(pts, styles, options) { + options = options || {}; + const closed = options.closed || (pts[0][0] === pts[pts.length - 1][0] && pts[0][1] === pts[pts.length - 1][1]); + const ret = []; + for (let i = 0; i < pts.length; i += 1) { + const pt0 = pts[i]; + if (i === 0) { + ret.push(`M ${this._trans.geo2imgX(pt0[0])} ${this._trans.geo2imgY(pt0[1])}`); + } else if (pt0.length === 2) { + ret.push(`L ${this._trans.geo2imgX(pt0[0])} ${this._trans.geo2imgY(pt0[1])}`); + } else if (pt0[0] === 'Q') { + ret.push(`Q${this._trans.geo2imgX(pt0[1])} ${this._trans.geo2imgY(pt0[2])} ${this._trans.geo2imgX(pt0[3])} ${this._trans.geo2imgY(pt0[4])}`); + } + } + if (closed) { + ret.push('Z'); + } + const shp = this._paper.path(ret.join('')); + for (const key in styles) { + shp.attr(key, styles[key]); + } + return shp; + } + rulerPath() { + const rulerWidth = 4; + const x0 = GRAPH_MARGIN[0] - (rulerWidth / 2); + const x1 = x0 - rulerWidth; + const numsection = 40; + const step = this._height / numsection; + const ret = []; + for (let i = 0; i < numsection; i += 1) { + const y0 = step * i; + const y1 = y0 + step; + const x = i % 2 ? x0 : x1; + ret.push(`M${x} ${y0}L${x} ${y1}`); + } + const shp = this._paper.path(ret.join('')); + shp.attr('stroke-width', rulerWidth); + shp.attr('stroke', 'gray'); + return shp; + } + textElement(x, y, txt, styles, options) { + options = options || {}; + const offX = options.offX || 0; + const offY = options.offY || 0; + if (!options.imgCoord) { + x = this._trans.geo2imgX(x); + y = this._trans.geo2imgY(y); + } + const shp = this._paper.text(x + offX, y + offY, txt); + for (const key in styles) { + shp.attr(key, styles[key]); + } + return shp; + } + markerElement(x, y) { + const shp = this._paper.circle(this._trans.geo2imgX(x), this._trans.geo2imgY(y), 5); + shp.attr('stroke-width', 3); + shp.attr('stroke', '#68c7ff'); + shp.attr('fill', 'white'); + return shp; + } + + render(damObj, { rz }) { + this._paper.clear(); + this._trans = new CoordTrans([GRAPH_MARGIN[0], GRAPH_MARGIN[1], this._width - GRAPH_MARGIN[2], this._height - GRAPH_MARGIN[3]], damObj.getBound()); + + // 断面轮廓 + this.linePath(damObj.getDamShape(), { + 'stroke-width': 1, + fill: '#e9e9e9', + }, { + closed: true, + }); + + this.textElement(GRAPH_MARGIN[0] + 5, 20, damObj.stnm, { + 'text-anchor': 'start', + 'font-size': 22, + }, { imgCoord: true }); + + const dataShps = damObj.caculteShps(rz); + if (dataShps) { + // 水位 + this.linePath(dataShps.rzShp, { + 'stroke-width': 0, + gradient: '90-#daedfa-#49519e', + }, { closed: true }); + this.textElement(GRAPH_MARGIN[0], this._trans.geo2imgY(rz), rz.toFixed(2), { + 'text-anchor': 'start', + 'font-size': 18, + fill: '#1a49c0', + }, { imgCoord: true, offY: -10 }); + + // 死水位 + this.linePath(dataShps.ddz, { + 'stroke-width': 0.5, + stroke: 'red', + }); + this.textElement(dataShps.ddz[0][0], dataShps.ddz[0][1], `死水位:${damObj.ddz.toFixed(2)}`, { + 'text-anchor': 'start', + 'font-size': 12, + fill: 'red', + }, { offY: -8 }); + + // 汛限水位 + this.linePath(dataShps.fsltdz, { + 'stroke-width': 0.5, + stroke: 'red', + }); + this.textElement(dataShps.fsltdz[0][0], dataShps.fsltdz[0][1], `汛限水位:${damObj.fsltdz.toFixed(2)}`, { + 'text-anchor': 'end', + 'font-size': 12, + fill: 'red', + }, { offY: -8 }); + + // 正常蓄水位 + this.linePath(dataShps.zcxsw, { + 'stroke-width': 0.5, + }); + this.textElement(dataShps.zcxsw[0][0], dataShps.zcxsw[0][1], `正常蓄水位:${damObj.zcxsw.toFixed(2)}`, { + 'text-anchor': 'start', + 'font-size': 12, + }, { offY: 8 }); + + // 坝顶高程 + this.textElement(dataShps.damel[0], dataShps.damel[1], `坝顶高程:${damObj.damel.toFixed(2)}`, { + 'text-anchor': 'end', + 'font-size': 12, + }, { offY: -8 }); + } + + // 标尺 + this.rulerPath(); + } + + clear() { + this._paper.clear(); + } + + destroy() { + this._paper.remove(); + } +} + +export default DamGraph; diff --git a/src/components/DamGraph/DamImage.js b/src/components/DamGraph/DamImage.js new file mode 100644 index 0000000..4688537 --- /dev/null +++ b/src/components/DamGraph/DamImage.js @@ -0,0 +1,211 @@ +import DamData from "./DamData"; +import CoordTrans from './CoordTrans'; + +const GRAPH_MARGIN = [10, 40, 5, 0]; + + +function fillPath({ trans, ctx, pts, stroke }) { + ctx.beginPath(); + for (let i = 0; i < pts.length; i += 1) { + const pt0 = pts[i]; + if (i === 0) { + ctx.moveTo(trans.geo2imgX(pt0[0]), trans.geo2imgY(pt0[1])); + } else { + ctx.lineTo(trans.geo2imgX(pt0[0]), trans.geo2imgY(pt0[1])); + } + } + ctx.closePath(); + if (stroke) { + ctx.stroke(); + } + ctx.fill() +} + +function strokePath({ trans, ctx, pts }) { + ctx.beginPath(); + for (let i = 0; i < pts.length; i += 1) { + const pt0 = pts[i]; + if (i === 0) { + ctx.moveTo(trans.geo2imgX(pt0[0]), trans.geo2imgY(pt0[1])); + } else { + ctx.lineTo(trans.geo2imgX(pt0[0]), trans.geo2imgY(pt0[1])); + } + } + ctx.stroke() +} + +/* +function render(damObj, { rz }) { + + const dataShps = damObj.caculteShps(rz); + if (dataShps) { + // 水位 + this.linePath(dataShps.rzShp, { + 'stroke-width': 0, + gradient: '90-#daedfa-#49519e', + }, { closed: true }); + this.textElement(GRAPH_MARGIN[0], this._trans.geo2imgY(rz), rz.toFixed(2), { + 'text-anchor': 'start', + 'font-size': 18, + fill: '#1a49c0', + }, { imgCoord: true, offY: -10 }); + + // 死水位 + this.linePath(dataShps.ddz, { + 'stroke-width': 0.5, + stroke: 'red', + }); + this.textElement(dataShps.ddz[0][0], dataShps.ddz[0][1], `死水位:${damObj.ddz.toFixed(2)}`, { + 'text-anchor': 'start', + 'font-size': 12, + fill: 'red', + }, { offY: -8 }); + + // 汛限水位 + this.linePath(dataShps.fsltdz, { + 'stroke-width': 0.5, + stroke: 'red', + }); + this.textElement(dataShps.fsltdz[0][0], dataShps.fsltdz[0][1], `汛限水位:${damObj.fsltdz.toFixed(2)}`, { + 'text-anchor': 'end', + 'font-size': 12, + fill: 'red', + }, { offY: -8 }); + + // 正常蓄水位 + this.linePath(dataShps.zcxsw, { + 'stroke-width': 0.5, + }); + this.textElement(dataShps.zcxsw[0][0], dataShps.zcxsw[0][1], `正常蓄水位:${damObj.zcxsw.toFixed(2)}`, { + 'text-anchor': 'start', + 'font-size': 12, + }, { offY: 8 }); + + // 坝顶高程 + this.textElement(dataShps.damel[0], dataShps.damel[1], `坝顶高程:${damObj.damel.toFixed(2)}`, { + 'text-anchor': 'end', + 'font-size': 12, + }, { offY: -8 }); + } + + // 标尺 + this.rulerPath(); +} +*/ + +export default function genDamImage(data, width, height) { + const c = document.createElement('canvas'); + c.width = width; + c.height = height; + const ctx = c.getContext('2d'); + + + ctx.fillStyle = "#fffc"; + ctx.fillRect(0, 0, width, height); + + + const { stnm, damel, ddz, fsltdz, zcxsw } = data || {}; + if (!damel || !ddz || damel <= ddz) { + ctx.font = '20px serif'; + ctx.fillStyle = "#000"; + ctx.fillText((stnm || '-') + '(水库基础数据异常)', GRAPH_MARGIN[0] + 4, 24); + + return c.toDataURL(); + } + + const y0 = ddz - ((damel - ddz) * 0.1); + + const shape = [[20, y0], [40, damel], [55, damel], [55, y0], [0, y0]]; + + const damObj = new DamData({ stnm, damel, ddz, fsltdz, zcxsw }); + damObj.setDamShape(shape); + + const trans = new CoordTrans([GRAPH_MARGIN[0], GRAPH_MARGIN[1], width - GRAPH_MARGIN[2], height - GRAPH_MARGIN[3]], damObj.getBound()); + const dataShps = damObj.caculteShps(data.rz); + + { + // 标题 + ctx.font = '20px serif'; + ctx.fillStyle = "#000"; + ctx.fillText(damObj.stnm, GRAPH_MARGIN[0] + 4, 24); + + // 水位 + var waterGradient = ctx.createLinearGradient(0, 0, 0, 500); + waterGradient.addColorStop(1, "#daedfa"); + waterGradient.addColorStop(0, "#49519e"); + ctx.fillStyle = waterGradient; + fillPath({ ctx, trans, pts: dataShps.rzShp }); + + ctx.font = '18px serif'; + ctx.fillStyle = "#1a49c0"; + ctx.fillText(data.rz.toFixed(2), GRAPH_MARGIN[0] + 4, trans.geo2imgY(data.rz) - 5); + + + // 横断面 + ctx.lineWidth = 3; + ctx.strokeStyle = "#444"; + ctx.fillStyle = "#ddd"; + + fillPath({ ctx, trans, pts: damObj.getDamShape(), stroke: true }); + + + // 死水位 + ctx.strokeStyle = 'red'; + ctx.lineWidth = 0.5; + strokePath({ ctx, trans, pts: dataShps.ddz }); + + ctx.font = '16px serif'; + ctx.fillStyle = 'red'; + ctx.fillText( + `死水位:${damObj.ddz.toFixed(2)}`, + trans.geo2imgX(dataShps.ddz[0][0]) + 4, + trans.geo2imgY(dataShps.ddz[0][1]) - 5); + + + // 汛限水位 + strokePath({ ctx, trans, pts: dataShps.fsltdz }); + ctx.textAlign = "right"; + ctx.fillText( + `汛限水位:${damObj.fsltdz.toFixed(2)}`, + trans.geo2imgX(dataShps.fsltdz[0][0]), + trans.geo2imgY(dataShps.fsltdz[0][1]) - 5); + + + // 正常蓄水位 + ctx.strokeStyle = '#000'; + ctx.lineWidth = 0.5; + strokePath({ ctx, trans, pts: dataShps.zcxsw }); + + ctx.font = '16px serif'; + ctx.fillStyle = '#000'; + ctx.textAlign = "left"; + ctx.fillText( + `正常蓄水位:${damObj.zcxsw.toFixed(2)}`, + trans.geo2imgX(dataShps.zcxsw[0][0]), + trans.geo2imgY(dataShps.zcxsw[0][1]) + 16); + + + ctx.textAlign = "right"; + ctx.fillText( + `坝顶高程:${damObj.damel.toFixed(2)}`, + trans.geo2imgX(dataShps.damel[0]), + trans.geo2imgY(dataShps.damel[1]) - 5); + + ctx.lineCap = 'butt'; + ctx.strokeStyle = "#444"; + ctx.lineWidth = GRAPH_MARGIN[0] / 2; + const x1 = GRAPH_MARGIN[0] / 4; + const x2 = x1 + GRAPH_MARGIN[0] / 2; + const step = 12; + let isLeft = false; + for (let i = 0; i < height; i += step) { + ctx.beginPath(); + ctx.moveTo(isLeft ? x1 : x2, i); + ctx.lineTo(isLeft ? x1 : x2, i + step); + ctx.stroke(); + isLeft = !isLeft; + } + } + + return c.toDataURL(); +} \ No newline at end of file diff --git a/src/components/DamGraph/index.js b/src/components/DamGraph/index.js new file mode 100644 index 0000000..d2874ef --- /dev/null +++ b/src/components/DamGraph/index.js @@ -0,0 +1,93 @@ +/* eslint-disable no-debugger */ +import React from 'react'; + +import DamGraph from './DamGraph'; +import DamData from './DamData'; + +let __factory_index = 1; + +/** + * 渗压控件 + * + * todo: 支持resize + */ +class DamSyCtrl extends React.Component { + constructor(props) { + super(props); + + this._isMounted = true; + this.ctrlId = `damgraph_${__factory_index}`; + __factory_index += 1; + this.ctrl = null; + + this._width = props.width; + this._height = props.height; + this._data = props.data; + + this._damObj = null; + } + + componentDidMount = () => { + this.ctrl = new DamGraph(this.ctrlId, this._width, this._height); + this.renderData(); + } + + componentWillReceiveProps({ data }) { + if (this._data !== data) { + this._data = data; + this.renderData(); + } + } + + shouldComponentUpdate() { + return false; + } + + componentWillUnmount = () => { + this._isMounted = false; + + if (this.ctrl != null) { + this.ctrl.destroy(); + } + } + + _createDamData() { + const { stnm, damel, ddz, fsltdz, zcxsw } = this._data || {}; + if (!damel || !ddz) { + return; + } + + const y0 = ddz - ((damel - ddz) * 0.1); + + const shape = [[20, y0], [40, damel], [55, damel], [55, y0], [0, y0]]; + + this._damObj = new DamData({ stnm, damel, ddz, fsltdz, zcxsw }); + this._damObj.setDamShape(shape); + } + + /** + * @param {*} obj.rz + * @param {*} obj.shape + * @param {*} obj.pts + * @param {*} obj.ommts + * @param {*} obj.hscd + */ + renderData() { + this._createDamData(); + + if (this.ctrl) { + this.ctrl.clear(); + if (this._damObj) { + this.ctrl.render(this._damObj, this._data); + } + } + } + + render() { + return ( +
+ ); + } +} + +export default DamSyCtrl; diff --git a/src/components/DataPreload/index.js b/src/components/DataPreload/index.js new file mode 100644 index 0000000..a39eba1 --- /dev/null +++ b/src/components/DataPreload/index.js @@ -0,0 +1,20 @@ +import React, { useEffect, useState } from 'react'; +import { initAdcd } from '../../models/_/adcd'; + +function DataPreload({ children }) { + const [state, setState] = useState(false); + + useEffect(() => { + initAdcd().then(() => { + setState(true); + }); + }, []); + + if (!state) { + return null; + } + + return children; +} + +export default DataPreload; diff --git a/src/components/Loading/index.js b/src/components/Loading/index.js new file mode 100644 index 0000000..a137443 --- /dev/null +++ b/src/components/Loading/index.js @@ -0,0 +1,44 @@ +import { makeStyles, Typography } from '@material-ui/core'; +import React, { useEffect, useReducer } from 'react'; + +const useStyles = makeStyles({ + root: { + position: 'absolute', + top: 0, + right: 0, + left: 0, + bottom: 0, + background: '#000', + display: 'flex', + justifyContent: 'center', + alignItems: 'center', + flexDirection: 'column', + color: '#fff', + + '& > h1': { + fontSize: '4rem', + lineHeight: 3, + color: '#00deff', + letterSpacing: '0.2rem', + textShadow: '0 0 2rem #00deff', + }, + + '& > h5': { + fontSize: '1rem', + lineHeight: 3, + color: '#00deff', + }, + }, +}) + +const Loading = () => { + const classes = useStyles(); + + return ( +
+
载入中
+
+ ) +} + +export default Loading; diff --git a/src/components/RpfChart/index.js b/src/components/RpfChart/index.js new file mode 100644 index 0000000..07ba525 --- /dev/null +++ b/src/components/RpfChart/index.js @@ -0,0 +1,239 @@ +import React, { useEffect, useRef } from 'react'; + +class RpfChartInfo { + constructor(rpfInfo, dmInfo) { + this.maxFlow = 0; + this.maxPop = 0; + this.minRz = 9999; + this.maxRz = 0; + + for (const data of rpfInfo) { + if (data.flow > this.maxFlow) { + this.maxFlow = data.flow; + } + if (data.pop > this.maxPop) { + this.maxPop = data.pop; + } + if (data.rz > this.maxRz) { + this.maxRz = data.rz; + } + if (data.rz < this.minRz) { + this.minRz = data.rz; + } + } + + for (const coordE of dmInfo.geometry.extra) { + if (coordE[1] < this.minRz) { + this.minRz = coordE[1]; + } + } + } + + getFlowRange() { + return [0, this.maxFlow]; + } + getPopRange() { + return [0, this.maxPop]; + } + getRzRange() { + return [Math.floor(this.minRz), Math.ceil(this.maxRz)]; + } + getMinRz() { + return this.minRz; + } +} + + +export class PredictionCaculator { + constructor(sjbycgb, rpfInfo) { + this._data = {}; + for (const rec of sjbycgb) { + this._data[rec.minutes] = [rec.v5, rec.v10, rec.v20, rec.v50, rec.v100]; + } + + this._valid = true; + const data = rpfInfo.filter(({ rp }) => + rp === 5 || rp === 10 || rp === 20 || rp === 50 || rp === 100); + if (data.length !== 5) { + this._valid = false; + } + this._rpf = data; + } + + getDrpRange(tmType) { + const rec = this._data[tmType]; + if (!rec) { + return null; + } + return { min: rec[0], max: rec[4] }; + } + + caculate(tmType, drp) { + const rec = this._data[tmType]; + if (!rec || !this._valid) { + return null; + } + + if (drp < rec[0]) { + return { result: -1 }; + } else if (drp > rec[4]) { + return { result: 1 }; + } + + let section = -1; + let ratio; + for (let i = 0; i < 4; i += 1) { + const drp0 = rec[i]; + const drp1 = rec[i + 1]; + if (drp0 <= drp && drp1 >= drp) { + section = i; + ratio = (drp - drp0) / (drp1 - drp0); + break; + } + } + if (section === -1) { + return { result: -2 }; + } + + const rpf = this._rpf; + const rz1 = rpf[section].rz; + const rz2 = rpf[section + 1].rz; + let drpRz = rz1 + ((rz2 - rz1) * ratio); + drpRz = parseFloat(drpRz.toFixed(2)); + + const pop1 = rpf[section].pop; + const pop2 = rpf[section + 1].pop; + let drpPop = pop1 + ((pop2 - pop1) * ratio); + drpPop = parseInt(drpPop + 0.5, 10); + + const flow1 = rpf[section].flow; + const flow2 = rpf[section + 1].flow; + let drpFlow = flow1 + ((flow2 - flow1) * ratio); + drpFlow = parseFloat(drpFlow.toFixed(2)); + + return { + result: 0, + drpRz, + drpPop, + drpFlow, + }; + } +} + + +export function renderChart(selector, rpfInfo, dmInfo, preData) { + const chartInfo = new RpfChartInfo(rpfInfo, dmInfo); + const data = [{ + rz: chartInfo.getMinRz(), + flow: 0, + pop: 0, + }, ...rpfInfo]; + + const d3 = window.d3; + + const svg = d3.select(selector); + const w = parseInt(svg.style('width'), 10); + const h = parseInt(svg.style('height'), 10); + svg.selectAll('*').remove(); + + const xscaleFlow = d3.scaleLinear() + .domain(chartInfo.getFlowRange()) + .range([w / 2, w - 20]); + svg.append('g').attr('class', 'd3axisWhite') + .attr('transform', `translate(0,${h - 20})`) + .call(d3.axisBottom(xscaleFlow).ticks(4)); + + const xscalePop = d3.scaleLinear() + .domain(chartInfo.getPopRange()) + .range([w / 2, 20]); + svg.append('g').attr('class', 'd3axisWhite') + .attr('transform', `translate(0,${h - 20})`) + .call(d3.axisBottom(xscalePop).ticks(4)); + + const yscale = d3.scaleLinear() + .domain(chartInfo.getRzRange()) + .range([h - 20, 20]); + svg.append('g').attr('class', 'd3axisWhite') + .attr('transform', `translate(${w / 2},0)`) + .call(d3.axisLeft(yscale).ticks(5)); + + const lineFlow = d3.line() + .x(d => xscaleFlow(d.flow)) + .y(d => yscale(d.rz)); + svg.append('path') + .attr('d', lineFlow(data)) + .attr('stroke', '#69a5f1') + .attr('stroke-width', 2) + .attr('fill', 'none'); + + const linePop = d3.line() + .x(d => xscalePop(d.pop)) + .y(d => yscale(d.rz)); + svg.append('path') + .attr('d', linePop(data)) + .attr('stroke', '#ff9697') + .attr('stroke-width', 2) + .attr('fill', 'none'); + + svg.append('text').attr('fill', '#ccc').attr('x', 20).attr('y', h - 25).text('累计人口(人)'); + svg.append('text').attr('fill', '#ccc').attr('x', w - 80).attr('y', h - 25).text('流量(m³/s)'); + svg.append('text').attr('fill', '#ccc').attr('x', w / 2 + 2).attr('y', 25).text('水位(m)'); + + if (preData && preData.result === 0) { + const { drpRz, drpFlow, drpPop } = preData; + + const lineDrpRz = d3.line() + .x(d => 20 + d * (w - 40)) + .y(() => yscale(drpRz)); + svg.append('path') + .attr('d', lineDrpRz([0, 1])) + .attr('stroke', '#ff9697') + .attr('stroke-width', 1) + .attr('fill', 'none'); + svg.append('text') + .attr('x', w - 120) + .attr('y', yscale(drpRz) + 14) + .attr('fill', '#ff9697') + .text(`预测水位:${drpRz.toFixed(2)}`); + + svg.append('circle') + .attr('cx', xscaleFlow(drpFlow)) + .attr('cy', yscale(drpRz)) + .attr('r', 4) + .attr('fill', '#69a5f1'); + svg.append('text') + .attr('x', xscaleFlow(drpFlow) - 40) + .attr('y', yscale(drpRz)) + .attr('fill', '#69a5f1') + .text(drpFlow.toFixed(2)); + + svg.append('circle') + .attr('cx', xscalePop(drpPop)) + .attr('cy', yscale(drpRz)) + .attr('r', 4) + .attr('fill', '#ff9697'); + svg.append('text') + .attr('x', xscalePop(drpPop)) + .attr('y', yscale(drpRz) - 2) + .attr('fill', '#ff9697') + .text(drpPop.toFixed(0)); + } + + return svg; +} + + +export default function RpfChart({ data, preData, ...props }) { + + const canvasRef = useRef(); + + useEffect(() => { + if (data && data.hdm && data.rpf) { + renderChart(canvasRef.current, data.rpf, data.hdm, preData); + } + }, [preData, data]); + + return ( + + ); +} \ No newline at end of file diff --git a/src/components/ScrollReset/index.js b/src/components/ScrollReset/index.js new file mode 100644 index 0000000..d912714 --- /dev/null +++ b/src/components/ScrollReset/index.js @@ -0,0 +1,14 @@ +import { useEffect } from 'react'; +import { useLocation } from 'react-router-dom'; + +const ScrollReset = () => { + const location = useLocation(); + + useEffect(() => { + window.scrollTo(0, 0); + }, [location.pathname]); + + return null; +}; + +export default ScrollReset; diff --git a/src/components/SocketIOFrame/index.js b/src/components/SocketIOFrame/index.js new file mode 100644 index 0000000..723c72b --- /dev/null +++ b/src/components/SocketIOFrame/index.js @@ -0,0 +1,58 @@ +import React from 'react'; + + +export default class SocketIOFrame extends React.Component { + constructor(props) { + super(props); + + this.valid = !window.__socketIoCtx; + + window.__socketIoCtx = { + onMessage: this.onMessage, + onError: this.onError, + onLoad: props.onLoad, + }; + } + + componentDidMount() { + if (!this.valid) { + console.log('code error: context duplicated'); + } + } + + componentWillUnmount() { + window.__socketIoCtx = null; + } + + onMessage = (type, obj) => { + console.log(type, obj); + if (this.props[type]) { + this.props[type](obj); + } + } + + onError = (error) => { + console.log(error); + } + + sendCmd = (cmd) => { + this.refs.iframe.contentWindow.sendCmd(cmd); + } + + render() { + return ( +
+