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Is it hard to find the "Instersection points" of two 3d curves?


Hi everyone,

        I look around for all possibilities to find the "Intersection points" of two 3d curves or two edges for the last 3 days. Everyone is pointing out the following classes which don't provide a complete solution for my issue (issue: finding "number of intersections" and "Intersection points" (gp_Pnt))

1.  GeomAPI_ExtremaCurveCurve 

2. IntTools_EdgeEdge 

3. Geom2dAPI_InterCurveCurve

Anyone can summarize the solution for finding Intersection points of two 3d curves or edges?

Thanks in advance.

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