ACIS - parameters on a spherical surface

Roman Voznyuk vrv75 at
Tue Dec 11 21:38:39 PST 2001

>My problem is, if I got a {u,v} coordinate, and I want to find the
>corresponding 3D position on this spherical surface. The ACIS interface
>occasional, return a point which is not at the expected location, because
>are two points on this surface have the same {u,v} value.
Only one point corresponds to (u,v) pair in ACIS surfaces.  For me
everything works fine even for sphere. Nevertheless ,if you want opposite
point try negate parameter or just calculate it without ACIS api.

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