Thank you very much Lawrence. Are the names lost or are they saved somewhere ? If I do : "./ex2 -filename /tmp/test/Cube_with_facets.msh4 -dm_view vtk:/tmp/foo.vtk" , I only get the tets of the initial mesh. Thanks, Nicolas Le mer. 19 mai 2021 à 15:49, Lawrence Mitchell <[email protected]> a écrit :
On 19 May 2021, at 14:46, Karin&NiKo <[email protected]> wrote:
Dear Matthew,
You are (again) right. This Gmsh test file is "dirty" : some triangles do not belong to tests. Sorry for that. I have tried with another geo file (which is clean in that sense) and PETSc reads with no error.
I take this opportunity to ask my initial question : are the labels of the Physical Entities saved somewhere ? A gmsh test file with several Physical entities is attached to this email.
Yes, plex represents Physical entities as "labels". In particular, for facets, they are loaded as the "Face Sets" label, plex also loads markers on cells in the "Cell Sets" label.
e.g. here's the DMView output of your mesh.
DM Object: DM_0x84000000_0 1 MPI processes type: plex DM_0x84000000_0 in 3 dimensions: 0-cells: 64 1-cells: 279 2-cells: 378 3-cells: 162 Labels: celltype: 4 strata with value/size (0 (64), 6 (162), 3 (378), 1 (279)) depth: 4 strata with value/size (0 (64), 1 (279), 2 (378), 3 (162)) Cell Sets: 1 strata with value/size (7 (162)) Face Sets: 6 strata with value/size (3 (18), 6 (18), 2 (18), 5 (18), 1 (18), 4 (18))
Lawrence