Swap the U and V direction of a surface?

Grasshopper
1

I’d like to be able to swap the U and V directions of a surface.
The " Swap Surface Directions" component from Pufferfish seemed to be perfect, but it swaps the trimming data which is absolutely not what I want…

Swap UW issue.gh (3.2 KB)

Swap UW issue
Swap UW issue1641×656 77.6 KB

2 
var bf = s.Faces[0];
bf.Transpose(true);
A = bf;

Swap UV.gh (48.4 KB)

1 Like
3

Awesome !

4

RhinoCommons only mentions .Tranpose as a method for surfaces, which would remove the trim altogether. Transpose is not available as a method for Brep faces, although the C# component obviously still works. Any idea why?

5

image
image1231×200 22.5 KB

The BrepFace class inherits from the Surface class, which implies that any method designed to operate on surfaces is also applicable to BrepFaces.

6

Thanks for the quick reply. Forgive my ignorance, but I seem to be losing trim information when using the surface Transpose method on the Brep face - it returns an untrimmed surface. I can retrim, but the trim would somehow have to be transposed as well. Am I missing something here or is the C# function inherently doing something the Python equivalent isn’t capable of?