SplitCurves In Order

nobody · 发表于 2016-11-5 16:06:58

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?
[ol] Entity myent = (Entity)myid.GetObject(OpenMode.ForWrite);

                        Curve curve = myent as Curve;

                        Point3dCollection newpointcoll = new Point3dCollection();
                        foreach (Point3d mypnt in breakpoints)
                        {
                              Point3d nearpoint = curve.GetClosestPointTo(mypnt, false);
                              if (nearpoint.DistanceTo(mypnt)
                              {
                                 newpointcoll.Add(nearpoint);
                              }
                        }
                        newCurves = curve.GetSplitCurves(newpointcoll);[/ol]

nobody · 发表于 2016-11-5 22:41:23

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 · 发表于 2016-11-5 22:45:14

That did the trick
[ol]                   List lst = new List();
                        DoubleCollection paramcollection = new DoubleCollection();
                        foreach (Point3d pnt in newpointcoll)
                              lst.Add(curve.GetParameterAtPoint(pnt));
                        lst.Sort();
                        foreach (double param in lst)
                              paramcollection.Add(param);
                        newCurves = curve.GetSplitCurves(paramcollection);[/ol]

kdub · 发表于 2016-11-6 01:10:03

good to see the thought process and the resulting code !

SplitCurves In Order

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