I’m working in RhinoScript here as I modified an old script to quickly do something, and I notice a problem or quirk with the ExtractIsocurve method. On a trimmed clyindrical or arc-secton surface–it works fine on untrimmed surfaces–trying to use this method to extract an isocurve along the seam of the closed tube returns null.
Hi @JimCarruthers,
Keep in mind that Rhino.ExtractIsoCurve only works on Breps with a single face. Does this help?
– Dale