Sphere representation problem


I want to use openCascade to export 3D scenes in STEP and IGES formats.
One of my base item is a sphere but it makes a runtime error when i try to export one.
My base object representation is an array of vertices, 3 following vertices are a face, the next 3 too etc.
I convert it in a list of TopoDS_Vertices, then TopoDS_Edge, then TopoDS_Wire, and finally in TopoDS_Face.
All of them are in a TopoDS_Compound.
I have no problem to export boxes, cylinders and cones but trying to export a sphere makes an error.

I have seen a few topics which explain the same issue but no solutions to solve it.
Is there a solution at this problem?

Best regards,


Ro_ma_in's picture

My problem come from the fact that an Edge whose vertices are the same can't be created.

JuryS's picture

Show part of the code that don't working for the sample. Because I can't have any problem with next.