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GeomAPI_ProjectPointOnSurface

Anonymous's picture
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Dear all,

I am using the GeomAPI_ProjectPointOnSurface class to find the projections of 3D points on surfaces. For small numbers of points (and surfaces) this class works perfect. My problem is that I have to process large numbers of points and surfaces. I am just working on an example with 28000 points and 1200 surfaces. The projection process runs for more than 1.5 hours on a AMD K6III 450Mhz, which is far too much for practical purposes. Does anybody know whether there is a method to speed up calculation using CASCADE classes, or do I have to implement some fast algorithm myself? Thanks in advance

Thomas Haller