Page 1 of 1
Extrude a polygon
Posted: Wed Jan 02, 2019 11:55 pm
by Carlos
Hi
I am looking for a way to create at runtime a compass needle/3D pointer. I need just make a straight lines polygon thick with some height. Can you suggest a way?
I am using dg kernel with C#
Thank you
Re: Extrude a polygon
Posted: Sat Jan 05, 2019 5:04 am
by Prashant Kande
Hello Carlos
Try something like this:
Code: Select all
IObjectGenerator_DG iGener = iModel;
double S = 500; //Size
double h = 50; // Thickness
IPointArray_DG points = iGener.Create("PointArray_DG");
// Define the polygon
points.SetCount(7);
points.SetPoint1(0, S, 0, 0);
points.SetPoint1(1, 0.4*S, 0.4*S, 0);
points.SetPoint1(2, 0.5*S, 0.2*S, 0);
points.SetPoint1(3, -S, 0.2*S, 0);
points.SetPoint1(4, -S, -0.2*S, 0);
points.SetPoint1(5, 0.5*S, -0.2*S, 0);
points.SetPoint1(6, 0.4*S, -0.4*S, 0);
IBRepBuilder_DG iBuilder = iGener.Create("BRepBuilder_DG");
IBRepWire_DG iWire = iBuilder.CreateWire3(points, true);
IBRepShape_DG iShape = iGener.Create1("BRepFace_DG", iWire);
IBRepBuilderEx_DG iBuilderEx = iGener.Create("BRepBuilderEx_DG");
VectDg vExtrusion( 0, 0, h );
IBRepShape_DG iShapeExtruded = iBuilderEx.Extrude(iShape, vExtrusion);
IEntity_DG entity = iModel.AddBRepShape(iShapeExtruded);
entity.SetColor(1, 0, 0);
Regards
Re: Extrude a polygon
Posted: Mon Jan 07, 2019 12:05 am
by Carlos
This would do fine
Thank You, Prashant