Edge Surface component generates surfaces with casual UV orientation

I suspect Edge Surface component generates surfaces with casual UV orientation.

I attached an example in which you can see that given 4 lists of curves (1 for each edge), this component returns surfaces with casual UV orientation.

This is shown easily by dividing the surfaces in points and creating curves that show the U direction of the surface.

In the second example you can see that by using just 2 crv lists in order to lofting them, we obtain surfaces with the right U disposition.

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Permalink Reply by Davide Scialò on October 21, 2012 at 8:22am

here the gh file

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Permalink Reply by Michael Makris on August 8, 2013 at 7:03pm

Davide,

I am experiencing this same problem now. When using Edge Surface, GH does not seem to have a predictable method of determining U and V directions.

Did you ever solve this??

Permalink Reply by Olivier Suire on June 14, 2016 at 10:37am

Apparently not : I'm having the same issue...

Permalink Reply by Pieter Segeren on June 14, 2016 at 4:10pm

My ('diagonally tested') findings on the subject: the direction of the first curve (A) is determinative (flip that and the orientation of the surface flips). The directions (and order) of the remaining three curves (B, C, D) don't seem to matter.

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