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evFaceTangentPlane() on a degenerate point?
I'm running into an issue creating a plane on a revolved face at the center of the revolve. I'd like to avoid just slightly scooting off the center to something like vector(0.00001, 0). I just need the origin and normal. I understand that it is indeterminate, since the same "location" on the face, could have more than one normal direction, for example at the tip of a cone. In my case, we can assume it's a tangent point, more like the pole of a sphere, which should still only have 1 normal. Does anybody have a way to get a tangent plane at that location, even if it's a bit of a workaround?
Evan Reese / Principal and Industrial Designer with Ovyl