Topic: SplitCurves In Order

[nobody]

Need a little help.  I need to use splitcurves to break lines, polylines, and arcs but I need the breaks to occur in order from start of line to end of line. The routine I have now randomly breaks them creating segments longer than they should be.  It's hard for me to explain but hopefully the attached picture will help.

Any idea how I can break my polyline segments in order from start to end at my point locations?

Code - C#: [Select]

1.     Entity myent = (Entity)myid.GetObject(OpenMode.ForWrite);
2.  
3.                             Curve curve = myent as Curve;
4.  
5.                             Point3dCollection newpointcoll = new Point3dCollection();
6.                             foreach (Point3d mypnt in breakpoints)
7.                             {
8.                                 Point3d nearpoint = curve.GetClosestPointTo(mypnt, false);
9.                                 if (nearpoint.DistanceTo(mypnt) < 0.01)
10.                                 {
11.                                     newpointcoll.Add(nearpoint);
12.                                 }
13.                             }
14.                             newCurves = curve.GetSplitCurves(newpointcoll);

[nobody]

Nevermind. I think I have my head wrapped around it now.  Nothing like a good vr break.  I should be able to get the parameters of the points, sort then in order, then get the point locations again based on those parameters.  Wish me luck

[nobody]

That did the trick

Code - C#: [Select]

1.                      List<double> lst = new List<double>();
2.                             DoubleCollection paramcollection = new DoubleCollection();
3.                             foreach (Point3d pnt in newpointcoll)
4.                                 lst.Add(curve.GetParameterAtPoint(pnt));
5.                             lst.Sort();
6.                             foreach (double param in lst)
7.                                 paramcollection.Add(param);
8.                             newCurves = curve.GetSplitCurves(paramcollection);

[kdub_nz]

good to see the thought process and the resulting code !

[nobody]