Automatic road creation: How to generate solid between section profiles?

[Yna_Db]

I am sure that you will find a way, but I have one more observation: Lines in Element.Curves should be distributed in sublists accordingly to the number of instances, and it seems that you’ve got a lot of lines in the same sublist. A boundary creation method or something similar could be useful:

Get an outer boundary of multiple polygons (Room Boundaries)

I’m almost achamed of how dirty it is … but works! [image] in designscript: [image] pc = PolyCurve.ByJoinedCurves(c); dist = 500; co = Curve.Offset(pc, dist); sf = Surface.ByPatch(co); th1 = Surface.Thicken(sf,500,1); solidunion = Autodesk.Solid.ByUnion(Flatten(th1)); sf2 = Autodesk.Geometry.Intersect(solidunion,Plane.XY()); pc2 = sf2.PerimeterCurves(); pc3 = PolyCurve.ByJoinedCurves(pc2); Curve.Offset(pc3,-dist);