Hi Gmsh users, I'm trying to mesh a geometry that has some rotational symmetry. In the past, I've used the Rotate command to help with this, with good results. With the built-in geometry kernel, everything works fine. With the OpenCASCADE kernel, however, Gmsh appears to duplicate surfaces when I define a new elementary volume after rotating the surfaces.
I've read on this mailing list that OpenCASCADE will duplicate surfaces when they aren't oriented properly, and that this can be disabled if `Geometry.OCCAutoFix` is set to `0`. I've tried that, but the duplicate surfaces are still created. With the built-in kernel, the orientation of a surface can be reversed by negating its ID number in the `Surface Loop` call, but that doesn't appear to be the case when using the OpenCASCADE kernel. I've attached two example geo scripts that demonstrate the problem. `builtin.geo` uses the built-in kernel, and `opencascade.geo` uses OpenCASCADE. Any ideas? Thanks! Daniel
builtin.geo
Description: application/vnd.dynageo
opencascade.geo
Description: application/vnd.dynageo
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