Map to Surface?

Out of what box? Maybe R8? Without a GH file, I can’t easily tell. Standby, I will add a link here to a post in another thread that adds some spice to this puzzle.

OK, here is the post:

But I’ll post the same image here:

Note how some of the triangles mapped to the twisted surface are outside the mapped perimeter curve. This is a problem :interrobang:

triangles pattern_2024Aug9b.gh (28.3 KB) (R7)