generative modeling for Rhino
When I projects curves up on my surface(by using PROJECT) and extrude them, I can't close them? Is there anyone who know how I can fix this?
Cap only works fro planar openings.
Trim the surface, you projected on with th eprojected curve and move the trimmed surfaceto the top of your extrusion.
Joint the trimmed surfaces and the extrusion with brepJoin.
I can't see, what your VB component does. But you don't need it.
There's a SplitSurface component, that does that Rhino's split command does. Then it's a matter of selecting the right one with the list item.