38 lines
1.1 KiB
Java
38 lines
1.1 KiB
Java
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package com.gunshi.project.xyt.util;
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import java.math.BigDecimal;
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import java.math.RoundingMode;
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import java.util.List;
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import java.util.Map;
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public class DataHandleUtil {
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public static BigDecimal calcData(BigDecimal rz, Map<BigDecimal, BigDecimal> map,List<BigDecimal> list) {
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//库容曲线中最近的一组水位
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BigDecimal lowerRz = new BigDecimal(0);
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BigDecimal upperRz = new BigDecimal(0);
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//库容曲线中最近的一组水位对应的库容
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BigDecimal lowerW = new BigDecimal(0);
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BigDecimal upperW = new BigDecimal(0);
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for(int i=0;i<list.size();i++){
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if (rz.compareTo(list.get(i)) >= 0 && rz.compareTo(list.get(i+1)) <= 0) {
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lowerRz = list.get(i);
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upperRz = list.get(i+1);
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lowerW = map.get(lowerRz);
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upperW = map.get(upperRz);
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break;
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}
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}
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BigDecimal diff = rz.subtract(lowerRz);
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return lowerW.add(diff.multiply(upperW.subtract(lowerW)).divide(upperRz.subtract(lowerRz),2,RoundingMode.UP));
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}
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}
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