As a beginner, one of the difficulties I am having is navigating the data. Bottom up it seems ok - start from points, create geometry, then create topology
p1 = gp_Pnt(0,0,0) p2 = gp_Pnt(0,0,10) handle_geom_trimmed_curve = GC_MakeSegment(p1, p2).Value() topods_edge = BRepBuilderAPI_MakeEdge(handle_geom_trimmed_curve).Edge() topods_wire = BRepBuilderAPI_MakeWire(topods_edge).Wire() topods_face = BRepBuilderAPI_MakeFace(topods_wire ).Face() But going the other way seems to be difficult. For example, if I start with the face, how do I get the wire, the edges and the curves? I don't see any methods to do this. I see something to do with TShape - but I am not sure what that is... handle_topods_tshape = topods_face.TShape() topods_tshape = handle_topods_tshape.GetObject() Any suggestions? :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Patrick
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