using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace IStation.Model
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{
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/// <summary>
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/// 相似换算辅助类
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/// </summary>
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public class SimilarCalculateHelper
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{
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/// <summary>
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/// 计算相似流量扬程曲线
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/// </summary>
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/// <param name="expressGroup">表达式</param>
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/// <param name="originHz">原始频率</param>
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/// <param name="changeHz">换算频率</param>
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/// <param name="pointNumber">拟合点数量</param>
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/// <returns></returns>
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public static FeatCurveExpressGroup Calculate(FeatCurveExpressGroup expressGroup, double originHz, double changeHz, int pointNumber = 12)
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{
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if (expressGroup == null)
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return null;
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if (changeHz < 1)
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return null;
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if (expressGroup.CurveQH == null)
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return null;
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var similarExpressGroup = new FeatCurveExpressGroup();
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similarExpressGroup.CurveQH = CalculateQH(expressGroup.CurveQH, originHz, changeHz, pointNumber);
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similarExpressGroup.CurveQP = CalculateQP(expressGroup.CurveQP, originHz, changeHz, pointNumber);
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similarExpressGroup.CurveQE = CalculateQE(expressGroup.CurveQE, originHz, changeHz, pointNumber);
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return similarExpressGroup;
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}
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/// <summary>
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/// 计算相似流量扬程曲线
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/// </summary>
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/// <param name="express">表达式</param>
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/// <param name="originHz">原始频率</param>
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/// <param name="changeHz">换算频率</param>
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/// <param name="pointNumber">拟合点数量</param>
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/// <returns></returns>
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public static CurveExpress CalculateQH(CurveExpress express, double originHz, double changeHz, int pointNumber = 12)
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{
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if (express == null)
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return null;
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if (changeHz < 1)
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return null;
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List<CurvePoint> fitPoints = null;
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if (express.DefinePoints != null && express.DefinePoints.Any())
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fitPoints = express.DefinePoints;
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else
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fitPoints = FitCurveHelper.GetFitPoints(express, pointNumber);
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var ratio = changeHz / originHz;
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var similarPoints = new List<CurvePoint>();
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foreach (CurvePoint fitPoint in fitPoints)
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{
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var similarPoint = new CurvePoint();
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similarPoint.X = fitPoint.X * ratio;
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similarPoint.Y = fitPoint.Y * ratio * ratio;
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similarPoints.Add(similarPoint);
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}
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return new CurveExpress(similarPoints, express.FitType);
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}
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/// <summary>
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/// 计算相似流量功率曲线
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/// </summary>
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/// <param name="express">表达式</param>
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/// <param name="originHz">原始频率</param>
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/// <param name="changeHz">换算频率</param>
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/// <param name="pointNumber">拟合点数量</param>
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/// <returns></returns>
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public static CurveExpress CalculateQP(CurveExpress express, double originHz, double changeHz, int pointNumber = 12)
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{
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if (express == null)
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return null;
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if (changeHz < 1)
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return null;
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List<CurvePoint> fitPoints = null;
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if (express.DefinePoints != null && express.DefinePoints.Any())
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fitPoints = express.DefinePoints;
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else
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fitPoints = FitCurveHelper.GetFitPoints(express, pointNumber);
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var ratio = changeHz / originHz;
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var similarPoints = new List<CurvePoint>();
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foreach (CurvePoint fitPoint in fitPoints)
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{
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var similarPoint = new CurvePoint();
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similarPoint.X = fitPoint.X * ratio;
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similarPoint.Y = fitPoint.Y * ratio * ratio * ratio;
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similarPoints.Add(similarPoint);
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}
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return new CurveExpress(similarPoints, express.FitType);
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}
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/// <summary>
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/// 计算相似流量效率曲线
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/// </summary>
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/// <param name="express">表达式</param>
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/// <param name="originHz">原始频率</param>
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/// <param name="changeHz">换算频率</param>
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/// <param name="pointNumber">拟合点数量</param>
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/// <returns></returns>
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public static CurveExpress CalculateQE(CurveExpress express, double originHz, double changeHz, int pointNumber = 12)
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{
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if (express == null)
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return null;
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if (changeHz < 1)
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return null;
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List<CurvePoint> fitPoints = null;
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if (express.DefinePoints != null && express.DefinePoints.Any())
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fitPoints = express.DefinePoints;
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else
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fitPoints = FitCurveHelper.GetFitPoints(express, pointNumber);
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var ratio = changeHz / originHz;
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var similarPoints = new List<CurvePoint>();
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foreach (CurvePoint fitPoint in fitPoints)
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{
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var similarPoint = new CurvePoint();
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similarPoint.X = fitPoint.X * ratio;
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similarPoint.Y = fitPoint.Y;
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similarPoints.Add(similarPoint);
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}
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return new CurveExpress(similarPoints, express.FitType);
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}
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/// <summary>
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/// 计算相似流量扬程点
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/// </summary>
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/// <param name="fitPoint">点</param>
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/// <param name="originHz">原始频率</param>
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/// <param name="changeHz">换算频率</param>
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/// <returns></returns>
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public static CurvePoint CalculateQH(CurvePoint fitPoint, double originHz, double changeHz)
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{
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if (fitPoint == null)
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return null;
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if (changeHz < 1)
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return null;
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var ratio = changeHz / originHz;
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var similarPoint = new CurvePoint();
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similarPoint.X = fitPoint.X * ratio;
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similarPoint.Y = fitPoint.Y * ratio * ratio;
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return similarPoint;
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}
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/// <summary>
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/// 计算相似流量功率点
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/// </summary>
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/// <param name="express">点</param>
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/// <param name="originHz">原始频率</param>
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/// <param name="changeHz">换算频率</param>
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/// <returns></returns>
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public static CurvePoint CalculateQP(CurvePoint fitPoint, double originHz, double changeHz)
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{
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if (fitPoint == null)
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return null;
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if (changeHz < 1)
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return null;
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var ratio = changeHz / originHz;
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var similarPoint = new CurvePoint();
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similarPoint.X = fitPoint.X * ratio;
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similarPoint.Y = fitPoint.Y * ratio * ratio * ratio;
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return similarPoint;
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}
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/// <summary>
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/// 计算相似流量效率点
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/// </summary>
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/// <param name="express">点</param>
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/// <param name="originHz">原始频率</param>
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/// <param name="changeHz">换算频率</param>
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/// <returns></returns>
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public static CurvePoint CalculateQE(CurvePoint fitPoint, double originHz, double changeHz)
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{
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if (fitPoint == null)
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return null;
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if (changeHz < 1)
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return null;
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var ratio = changeHz / originHz;
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var similarPoint = new CurvePoint();
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similarPoint.X = fitPoint.X * ratio;
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similarPoint.Y = fitPoint.Y;
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return similarPoint;
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}
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}
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}
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