Trimming off curves at the edge of a surface

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Permalink Reply by Mario L on July 15, 2012 at 10:11pm

if i understand the image correctly, you're trying to trim the diamond shapes that don't lie on the surface? the first thing you could do is intersect the lines that lie part and part off the the surface with a curve/curve (one curve being the edge of the surface) intersection. and then test to see what geometry is on the surface and cull everything that isn't.