>Can anyone point me to an algorithm that would allow me to determine
the correct positions to >place vertices so that they define an oval
with arbitrary width/height ratio?
I've solved my own problem. I use a slider control to specify a
percentage of the models diameter that is used to scale the x or y
positions of all the relevant vertices in the trimesh. This transforms
my trimesh into a 3D object whose cross section is either a horizontally
or vertically oriented oval with user defined flatness as required.
Martin
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