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Cross points 3D

PostPosted: May 10th, 2006, 10:47 am
by hani
Hi all
How i can find all cross points between two 3D polygons









Thanks

PostPosted: May 10th, 2006, 12:28 pm
by Kambiz
As a solution, you can to find the intersection (if any) of each edge of one polygon with the other polygon.

In the SimpleGraph unit there's a function named IntersectLinePolygon. This function returns the intersections of an infinite line with a polygon in 2D space. You can easily modify this function to find intersection of a finite line with a polygon in 3D space.