Geometry loaded from IGES File is incorrect and cause a crash in meshing
flanged_pipe.igsI created an IGES file using Open Cascade (attached). The file load properly but the half-sperical surface appears incorrect. You can see it by clicking Geometry/Physical Groups/Add/Surface, there is a hole in in the surface.
When I try to mesh the part, the application crashes.
I tried opening the same file in CATIA V5 and the geometry appears correctly.
Recent builds should not crash, but meshing of the 2 periodic surfaces still fails.
With the latest OpenCASCADE and all the geometry cleaning options activated, only one of the 2 surfaces still does not mesh.
(The surface representation given by OpenCASCADE also seems wrong, so I guess this is not (entirely ;-)) Gmsh's fault.)
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