2010/6/11 Luis Casillas <[email protected]>: > Hello, > I'm trying to export a mesh from gmsh to freefem++, I tried to use the > gmshload command in freefem but no luck, now I'm trying using the medit > format but also is not working, I would appreciate any tip, > thanks > > Luis
Are you working in two or three dimensions? In two dimensions, I believe FreeFem++ should be able to load a Gmsh .msh mesh O.K. The only limitation I've discovered is that the interpolation operator, e.g. u (x1, y1) to extract the value of the solution u at the point (x1, y1), doesn't work. For that reason, you might want to use the MEDIT .mesh format in two dimensions, but FreeFem++ expects a variation of the MEDIT format which differs from Frey's (2001) specification; see `Third coordinate Z not wanted' <http://www.geuz.org/pipermail/gmsh/2010/005247.html> for the problem and remedy. In three dimensions, I couldn't get FreeFem++ to load a Gmsh .msh; the only option is to use the MEDIT .mesh format. However, this works easily in three dimensions; no translation is required. Another issue is that you need to define physical entities for the domains and boundaries, and then set Mesh.SaveElementTagType=2; see `Medit file format' <http://www.geuz.org/pipermail/gmsh/2010/005438.html>. I think this should be enough to get you going; do let me know if I've forgotten something. _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
