break curve at point

Anonymous — Tue, 09 Jun 2015 22:18:52 GMT

I have a piece of code that breaks a polyline in two pieces:

.....

PromptEntityOptions opt = new PromptEntityOptions(Environment.NewLine + "Select curve to break: ");
PromptEntityResult eres = ed.GetEntity(opt);

if (eres.Status != PromptStatus.OK)
{
return;
}

var ent = ((Autodesk.AutoCAD.DatabaseServices.Entity)tr.GetObject(eres.ObjectId, Autodesk.AutoCAD.DatabaseServices.OpenMode.ForRead, false));

List<double> pars = new List<double>();

var curv = ((Autodesk.AutoCAD.DatabaseServices.Curve)tr.GetObject(ent.ObjectId, Autodesk.AutoCAD.DatabaseServices.OpenMode.ForWrite, false));

PromptPointOptions opt1 = new PromptPointOptions(Environment.NewLine + "Enter the break point");
PromptPointResult res1 = ed.GetPoint(opt1);
Point3d p = curv.GetClosestPointTo(res1.Value, false);

.....

My problem is that I have to select first the polyline, then the breaking point. How can i do it in one shot (geting the point when picking the line)? Is this possible?

Thanks,

emiz

Re: break curve at point

Jeff_M — Tue, 09 Jun 2015 23:06:41 GMT

Use the PromptEntityResult.PickedPoint property:

                //PromptPointOptions opt1 = new PromptPointOptions(Environment.NewLine + "Enter the break point");
                //PromptPointResult res1 = ed.GetPoint(opt1);
                Point3d p = curv.GetClosestPointTo(eres.PickedPoint, false);

Re: break curve at point

Anonymous — Wed, 10 Jun 2015 19:09:33 GMT

Thank you Jeff, that works for me.

emiz

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break curve at point

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