Hello, I'm no expert (yet), but I'll try an answer... If you see physical objects in the tools-visibility-tree browser list, they are defined and appear in the mesh too. If you export in MSH format, it's the fourth column in the element definitions (for code aster call GM1, GM2, etc.) If you use MED format, call G-2D-1, G-3D-4, ... from code aster. If the physical groups don't appear in GMSH, you might want to use STEP to transfer from Salome to GMSH. It's a bit more complicated, as the physical groups are imported into GMSH with the same order as defined in the step file, but the names are discarded of course. Hope this helps.
Meilleures salutations / Best regards Michael Hansen Engineering ANDRITZ HYDRO AG Rue des Deux-Gares 6 1800 Vevey, Switzerland Phone: +41 (21) 925 77 36 Fax: +41 (21) 925 77 03 Mobile: E-Mail: [email protected] Internet: http://www.andritz.com <http://www.andritz.com/> ________________________________ From: Jan Schmitz [mailto:[email protected]] Sent: mardi, 27. juillet 2010 14:20 To: [email protected] Subject: [Gmsh] physical groups from CAD import Hello, I am wondering whether it is possible to define physical groups in a CAD geometry (especially using OpenCascade) which will be recognized by Gmsh in the meshing process. I have created a simple geometry using Salome, named the primitive bodies and their boundary faces, and imported it as BRep file into gmsh. However, the resulting mesh contains no physicals. Is it possible to define physical groups using CAD tools in the BRep file, or do I have to define them manually in Gmsh? What are the required steps? Thanks Jan
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