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Problem with GeomAPI_ProjectPointOnSurf

Neil's picture
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Hi,

I have a problem with GeomAPI_ProjectPointOnSurf. My code intersects two surfaces, and finds evenly-spaced points on the resulting curve of intersection. I need to find the parametric coordinates of each of these points on one of my original surfaces, but sometimes this fails for the points at either end of the curve, presumably because no orthogonal projection can be found. This must be extremely marginal as the points effectively lie on the surface anyway. Does anyone know a way around this or is there a way of obtaining the parametric coordinates without resorting to GeomAPI_ProjectPointOnSurf?

Thanks.

Neil

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