/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object is used to retrieve from inputs and store in outputs.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
//字典立面的Key必须唯一，如何保证TempDict的Key值唯一？
//调换Curve和Dict的顺序
//这里存在的一个bug
Point3d Pt = default(Point3d);
List <Curve> Crvs = new List <Curve>();
int Num = 1;
Dictionary <Curve, double> _TempDict = new Dictionary <Curve, double>();
if (!DA.GetDataList <Curve>(0, Crvs))
{
return;
}
if (!DA.GetData(1, ref Pt))
{
return;
}
if (!DA.GetData(2, ref Num))
{
return;
}
if (Num == 0)
{
this.AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Num为0");
}
double Param = 0;
foreach (var Crv in Crvs)
{
if (Crv.ClosestPoint(Pt, out Param))
{
Point3d TempPt = Crv.PointAt(Param);
double Dist = Pt.DistanceTo(TempPt);
_TempDict.Add(Crv, Dist);
}
}
var ResultDict = _TempDict.OrderByDescending(item => - item.Value).ToDictionary(item => item.Key, item => item.Value);
List <Curve> TempCrvs = ResultDict.Keys.ToList();
List <Curve> ResultCrvs = new List <Curve>();
if (TempCrvs.Count < Math.Abs(Num))
{
this.AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "Num 数值过大");
return;
}
if (this.FindType == 0)
{
ResultCrvs = TempCrvs.GetRange(0, Math.Abs(Num));
}
else
{
ResultCrvs = TempCrvs.GetRange(TempCrvs.Count - Num - 1, TempCrvs.Count);
}
DA.SetDataList(0, ResultCrvs);
}
/// <summary>
/// Needs to calculate Length of the curve. If you have it - create this class passing 'length' parameter.
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
public Percent PercentAt(Point3d point)
{
double t;
if (!Crv.ClosestPoint(point, out t))
{
throw new Exception("CurveNormalized.P(Point3d point) failed to get T from 3d point!");
}
return(PercentAt(t));
}