using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IStation.InternalModel
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{
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internal class PumpCurveInfo
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{
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public int PumpIndex { get; set; }
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public long ID { get; set; }
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public string Name { get; set; }
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public int Status { get; set; }
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/// <summary>
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///
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/// </summary>
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public IStation.Model.Pump RatedParas { get; set; }
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/// <summary>
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/// 曲线信息
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/// </summary>
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public IStation.Model.FeatCurveExpressGroup CurveInfo { get; set; }
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/// <summary>
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///
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/// </summary>
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public List<IStation.Model.GroupPoint> GroupPoints { get { return _grpPoints; } set {
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_grpPoints = value;
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maxHead = (from yyy in _grpPoints select yyy.H).Max();
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minHead = (from yyy in _grpPoints select yyy.H).Min();
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groupPointCount = _grpPoints.Count;
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} }
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double maxHead, minHead;
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int groupPointCount = 0;
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List<IStation.Model.GroupPoint> _grpPoints = null;
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public IStation.Model.GroupPoint GetPointByH(double h)
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{
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//在范围内
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if (h <= maxHead && h >= minHead)
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{
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return GetInterPointExX(h);
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}
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//判断是否在前面的延长部分
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double x_start = IStation.Untity.LineHelper.GetXbyY(_grpPoints[0].Q, _grpPoints[0].H, _grpPoints[1].Q, _grpPoints[1].H, h);
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if (x_start <= _grpPoints[0].Q)
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{
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if (x_start > 0 && x_start > _grpPoints[0].Q * 0.5)//放一点余量
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{
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IStation.Model.GroupPoint grpPt = new IStation.Model.GroupPoint();
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grpPt.Q = x_start;
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grpPt.H = h;
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grpPt.P = _grpPoints[0].P;
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return grpPt;
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}
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}
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//判断是否在后面的延长部分:U型曲线 是前后都有
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double x_end = IStation.Untity.LineHelper.GetXbyY(_grpPoints[_grpPoints.Count - 2].Q, _grpPoints[_grpPoints.Count - 2].H, _grpPoints[_grpPoints.Count - 1].Q, _grpPoints[_grpPoints.Count - 1].H, h);
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if (x_end >= _grpPoints[_grpPoints.Count - 1].Q && x_end < _grpPoints[_grpPoints.Count - 1].Q * 2)//放一点余量
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{
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IStation.Model.GroupPoint grpPt = new IStation.Model.GroupPoint();
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grpPt.Q = x_end;
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grpPt.H = h;
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grpPt.P = _grpPoints[_grpPoints.Count - 1].P;
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return grpPt;
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}
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return null;
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}
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//获得Y值的坐标位置,可能有多个点(是线形插值,不是曲线上的点):会计算延长部分:而且要求_grpPoints点按照从小到大排序
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public IStation.Model.GroupPoint GetInterPointExX( double H)
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{
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if (GroupPoints == null)
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return null;
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List<double> sect_pts = new List<double>();
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foreach (var pt in GroupPoints)
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{
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if (Math.Abs(pt.H - H) < 0.02)
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return pt ;
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}
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for (int i = 0; i < groupPointCount - 1; i++)//少一个点
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{
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if ((H >= _grpPoints[i].H && H <= _grpPoints[i + 1].H) || (H <= _grpPoints[i].H && H >= _grpPoints[i + 1].H))
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{//直线插值
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double Q;
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if (Math.Abs(_grpPoints[i].H - _grpPoints[i + 1].H) < 0.01)
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Q = (_grpPoints[i].Q + _grpPoints[i + 1].Q) * 0.5;
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else
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Q = _grpPoints[i].Q + (_grpPoints[i + 1].Q - _grpPoints[i].Q) * (H - _grpPoints[i].H) / (_grpPoints[i + 1].H - _grpPoints[i].H);
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double P = _grpPoints[i].P + (_grpPoints[i + 1].P - _grpPoints[i].P) * (Q - _grpPoints[i].Q) / (_grpPoints[i + 1].Q - _grpPoints[i].Q);
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return new Model.GroupPoint() { Q = Q, P = P , H= H };
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}
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}
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return null ;
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}
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}
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}
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