apply a paper folding pattern to a curve surface

I'm trying to to apply a paper folding pattern to a curve surface ( a loft ), I saw some similar discussion in the forum, but all of them are a little different from my intentions

actually, I think, my issue is to create a vector normal to the curve surface

I'll attach the definition

thanks

Federico

Attachments:

paperfold.jpg, 92 KB
Surface Diagrid 2.3.gh, 14 KB

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Permalink Reply by Federico on March 25, 2014 at 4:18am

ok, in the Rhino model there are just the sections for the loft (to do with grasshopper) , the picture of the paperfold holder is similar to what I'm trying to do, my aim is to make a definition capable to fit different round surface ( if the section changes the definition has to follow ). Actually the definition works on a plane ( cause I have used the z axis as vector to fold the surface) but I don't know how to catch the normal vector from a curve surface, in this particular case I cant use "evaluate surface" cause the surface is not divided orthogonally...

thanks

Federico

Attachments: