problem w. surface from points/lines

Hi everybody

I've got a problem that I can't solve by my self.

The thing is that I want to morph, as many people around here, an hexagonal shape onto a given surface. But this is the final aim.

I've got the problem earlier, and it is the following:

In the definition that i am submitting you wil see that from a given surface I get a family of UV points, playing with'em I sort'em until i get, in one hand, 6 vertices in each branch, in consecutive order, in the other, a family of boundary hegagon lines.

The first problem is that i can't make a surface with straight boundary, it interpolate  curves (option 3 in my definiton) If I could control the degree some how....

Trying to solve it with a mesh hull it does nothing but a open brep, with no surface displayed (option 2 in my def.)

Trying the same but with boundary lines, it solves a surface (a family of them) but faceted. In this case I tryied to make a surfacebox (SBox) but I don't know which domain2 is asking me to connect.

Sorry for such a love letter, but please help me out¡¡¡¡¡

Thannnnnnnnnnnnnnnnnnnnnnnnnnnnks

P.S. the definition recycles the first part of another definition found in thin forum.