Hello list, I'm still playing around with Salome, STEP files and gmsh, but can't seem to import spheres correctly into gmsh.
A cube works fine. The Salome file is at http://www.kuleuven-kortrijk.be/~bartv/cube.hdf after exporting it to a STEP file with Salome, i get http://www.kuleuven-kortrijk.be/~bartv/cube.step which i can mesh correctly with gmsh -3 cube.step resulting in http://www.kuleuven-kortrijk.be/~bartv/cube.msh If, however, I do the same with a sphere, then I get bartv@sonic:~/h/public$ gmsh -3 sphere.step Info : Running 'gmsh -3 sphere.step' Info : Started on Thu Mar 24 13:50:40 2011 Info : Reading 'sphere.step' ... Step File Reading : sphere.step ... STEP File Read ... Elapsed time: 0 Hours 0 Minutes 0.000288 Seconds CPU user time: 0 seconds CPU system time: 0 seconds ... Step File loaded ... Elapsed time: 0 Hours 0 Minutes 0.000393 Seconds CPU user time: 0 seconds CPU system time: 0 seconds 63 records (entities,sub-lists,scopes), 137 parameters ... Parameters prepared ... Elapsed time: 0 Hours 0 Minutes 0.00061 Seconds CPU user time: 0 seconds CPU system time: 0 seconds ... Objets analysed ... Elapsed time: 0 Hours 0 Minutes 0.001023 Seconds CPU user time: 0.01 seconds CPU system time: 0 seconds STEP Loading done : 32 Entities Info : Healing geometry (tolerance=1e-06) Info : - fixing small edges Info : removing degenerated edge 0 Info : removing degenerated edge 0 Info : - fixing spot and strip faces Info : OCC Region 1 with 0 faces Info : Read 'sphere.step' Info : Meshing 1D... Info : Mesh 1D complete (0 s) Info : Meshing 2D... Info : Mesh 2D complete (0 s) Info : Meshing 3D... Info : Meshing volume 1 (Frontal) Info : CalcLocalH: 0 Points 0 Elements 0 Surface Elements Info : Check subdomain 1 / 1 Info : 0 open elements Info : Meshing subdomain 1 of 1 Info : 0 open elements Info : Mesh 3D complete (0 s) Info : 0 vertices 0 elements Info : Writing 'sphere.msh' Info : Wrote 'sphere.msh' Info : Stopped on Thu Mar 24 13:50:40 2011 and the resulting .msh file has no tetrahedrons: http://www.kuleuven-kortrijk.be/~bartv/sphere.msh In the gmsh GUI, I already tried unselecting * Remove small edges in OpenCascade models * Remove small faces in OpenCascade models before merging/importing the .step file, but this didn't help either. What am I doing wrong here? How can I draw a sphere in Salome and mesh its volume using tetrahedrons with gmsh? I am using gmsh 2.4.2 and Salome 5.1.5 on Ubuntu Maverick 10.10. Regards, Bart -- "Share what you know. Learn what you don't." _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
