Wow! thanks... This is working incredibly. I can even unroll a number of breps at the same time... But is there a way to make them unroll in a specific place? say  right next to the surface they belong to?

I organized on a grid each of a series of parts that make up a sort of blob, and its way important that i correctly attribute the respective I.D. tag.

thanks in advance.

Anyone know how to control the placement of the final unrolled surface?

Ie. The input surface location and direction changes when you unroll the surface. It is reoriented.

Updated user component here:

http://www.grasshopper3d.com/forum/topics/unroll-surface-and-breps-...