why rhino surface extends have no problem
grasshopper uses surface extends method having problem?
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It’s because it’s a trimmed surface in Rhino. Even the following C# code will give you the untrimmed surface regardless of any extensions, give it a go with your input:
private void RunScript(Surface surface, ref object A)
{
A = surface;
}
I’m not 100% sure with exactly how to solve this, but it will involve understanding how to maintain and manipulate surface trims within a BRep, Surface or Nurbs. I can only find trimming properties for BReps myself (e.g. Curves2D), but that’s where my knowledge ends.
Hope you can find someone on here that knows more, sorry I can’t help ; )
John.
Thanks