> On 10 Feb 2018, at 22:06, Juan E. Sanchez <juan.e.sanc...@gmail.com> wrote: > > Hello, > > I have an existing msh file, and a pos file containing a background mesh. Is > there a script example showing how to use these files to create a refined > mesh using the background field? >
Start from the geometrical description (not the mesh): this way Gmsh will be able to place the new vertices correctly, i.e. on the CAD gmsh -3 test.geo -bgm test.pos CG > Using > > gmsh -3 test.msh -bgm test.pos > > results in a mesh where there is the same number of nodes and elements, but > it appears that the physical entity number is lost: > > last element in original file: > > 36210 4 3 15 15 0 5786 5791 5792 5800 > > last element in new file: > > 36210 4 2 0 15 2603 5822 2604 2605 > > Now all of the mesh elements belong to the same physical entity, 0. > > If I perform a "refine by splitting" in the gui, the physical entity > information is maintained: > > 266256 4 2 15 15 42825 10009 41452 9710 > > The file is a 3d tetrahedral mesh, and it also contains triangular surfaces > to impose boundary conditions. > > Regards, > > Juan > > > _______________________________________________ > gmsh mailing list > gmsh@onelab.info > http://onelab.info/mailman/listinfo/gmsh — Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine Free software: http://gmsh.info | http://getdp.info | http://onelab.info
_______________________________________________ gmsh mailing list gmsh@onelab.info http://onelab.info/mailman/listinfo/gmsh