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a BRepPrimApi_MakeHalfSpace problem

elouarti's picture


i have constructed shapes from vertexs,i have three vertexs from which i must construct a plane that i should use to cut the shape i constructed and conserve the lowest part of the shape to display so i constructed a BRepPrimApi_MakeHalfSpace object to cut my shape with it but i have a probleme with it because it returns an empty shape the TopoDS_Face and the point i used as arguments aren't null

please help i really don't know wath to do!

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