Tue, 03/31/2026 - 03:21
Forums:
There is a shape (.brep is attached) made of a torus surface and four 1-degree B-spline p-curves. 3d-curves generated by BRepLib::BuildCurve3d. Despite the fact that these p-curves are, in fact, iso-curves, the generated 3d curves are also B-splines. The rendering (tesselation) quality of this shape isn't great. See attached screenshots. I tried to detect that the p-curves are isocurves and replace the B-spline with a Geom2d_Line, but BRepLib::BuildCurve3d crashes in this case.
Is there an alternative way to create a 3D curve for the edge?
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