I use a program to make very close to developable surfaces. The process is to define a surface (1) based on the desired edges then adding and modifying interior control points of a duplicate surface (2) to reduce Gaussian curvature. The unrolled result (2’) of (2) ultimately has less strain than the unrolled result of the original surface (1’). Materials are assigned to the surfaces before unrolling and this seems to work quite well, quite happy with the results. So we have surface (2) which is “more developable” than surface (1), but they have the same edges.
So now I bring these surfaces into Rhino and things get confusing. (1) will unroll nicely, but (2) won’t unroll at all. Surely a “more developable” surface (2) should unroll before a less developable surface (1)…?
This gives me concern with both programs. Should I just close my eyes and forget that I’ve seen this? The other program seems to give good results that are workable. Should I dig deeper and/or find a better solution?
Dev vs non-dev surfaces.3dm (52.9 KB)