> I have a structured mesh with hexahedrons and I would like to > split each hexahedrons into tetrahedrons. > Is it possible ?
Hello. Someone asked me this the other day. At first I thought it should be easy, but then I found I didn't know how to do it, in Gmsh or otherwise. I had thought that one should be able to simply split each hexahedron, but then reading the documentation for how it's done in the VTK library: http://www.vtk.org/doc/nightly/html/classvtkDataSetTriangleFilter.html I saw that one must meet `the issue of face compatibility across quadrilateral faces (which way to orient the diagonal?)'. I figure then that it should be possible to export a hexahedral mesh as VTK, use this VTK function to split to tetrahedra and save as VTK, then reread the VTK. I haven't actually gone on to try this. I would be interested to hear of a pure Gmsh solution, if anyone has one. > if yes into how many tetrahedrons ? I think the answer for this should be six, since the volume of a tetrahedron with three mutually perpendicular edges of unit length is 1/6. _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
