<div>Hi Forum</div>
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<div>I want to use GMSH to mesh *.stl files that have been built elsewhere ( In BRL CAD to be more exact ) which will be used as models for FEA analysis in Code Aster.</div>
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<div>I want to export them in *.med format containing the mesh info as well as some topological info about physical lines/surfaces/volumes.</div>
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<div>In GMSH, I can import the *.stl, define a volume using the *.stl boundary, mesh/refine the boundary, and mesh/refine the created volume, what i cannot ( do not know how to ...) do is to separate the boundary of my *stl in primitive faces to give the a physical meaning ( they will be used on Boundary condition addressing in ASTER ), can this be done in GMSH, or sould I build my geometry in GMSH prior to do all this...?</div>
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<div>My maisn issue is that BRL CAD contains some 3D primitives that do not exist in GMSH, like elliptical/hyperbolic cones generalyzed ellipsoids, etc, and I use the generated surfaces in my *.stl as boundaries in some of my models....</div>
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<div>Can someone please help...? </div>
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<div>Best regards</div>
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<div>Alex</div>