The post you marked as “Solution” above only demonstrated a flaw in Map Srf that I later solved in the other thread. I’ll repeat that post below:
Aha
One of the many things I tried before starting this thread was transferring the four vertices of the trapezoid to the twisted surface, with the intention of using CrvSrf (Curve On Surface) to connect them. It didn’t work with the original loft but works on the NetSurf. See orange group. Result looks good to me, though a very convoluted way to get there.
triangles pattern_2024Aug9c.gh (33.7 KB)Looks like a Map Srf fail on the perimeter curve, yet it works on the triangles.
