Ah that makes sense thank you very much! On 3/14/10, Thomas Paviot <tpav...@gmail.com> wrote: > 2010/3/14 Dave Cowden <dave.cow...@gmail.com> > >> Hi, All: >> >> I'm running into a problem, wondering if someone can help. >> >> I am trying to get the underlying curve of an edge, and getting a swig >> error message. >> Heres' a simplified version of my code( which gets the endpoints of the >> curve ) >> >> from OCC import BRepBuilderAPI,gp,GeomAdaptor >> >> brepTool = BRep.BRep_Tool(); >> builder = >> BRepBuilderAPI.BRepBuilderAPI_MakeEdge(gp.gp_Pnt(0,0,0),gp.gp_Pnt(1,1,1)); >> builder.Build(); >> edge = builder.Edge(); >> hc = brepTool.Curve(edge); >> c = GeomAdaptor.GeomAdaptor_Curve(hc[0]); >> p1 = c.Value(hc[1]); >> p2 = c.Value(hc[2]); >> >> it prints this message: >> >> "swig/python detected a memory leak of type 'Handle_Geom_Curve *', no >> destructor >> found." >> >> >> I have been using the alternative code below that does not give this >> message, but doesnt seem to perform as well: I was surprised after running >> the code below that it does not seem as fast as the above: >> >> curve = BRepAdaptor.BRepAdaptor_Curve(edge); >> pa1 = curve.FirstParameter(); >> pa2 = curve.LastParameter(); >> curveType = curve.GetType(); >> #get first and last points. >> p1 = gp.gp_Pnt(); >> p2 = gp.gp_Pnt(); >> BRepLProp_CurveTool.Value(curve,pa1,p1 ); >> BRepLProp_CurveTool.Value(curve,pa2,p2 ); >> >> I am using pythonOCC version 0.4 on windows XP pro. Is either of the above >> methods preferred? >> Thanks in advance! >> >> > Hi Dave, > > The first one solution to be better. In your code, a function returns a swig > object of type 'Handle_Geom_Curve', but the python proxy for this class is > not loaded -> you don't have access to all methods for this object (and > actually the __del__ method, causing a memory leak). > > The fix: add the following line at the top of your code: > from OCC.Geom import * > > Cheers, > > Thomas >
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