Yes, you can use DMPlexCreateSubmesh() (and friends depending on exactly what kind of submesh you want). This will allow you to create a vector over only this mesh, and map your volumetric solution to that subvector. Then you can view the subvector (which pulls in the submesh).
Thanks, Matt On Mon, Aug 1, 2022 at 10:59 PM Jed Brown <j...@jedbrown.org> wrote: > I would create a sub-DM containing only the part you want to view. > > Mike Michell <mi.mike1...@gmail.com> writes: > > > Hi, > > > > I am a user of DMPlex object in 3D grid topology. Currently the solution > > field is printed out using viewer PETSCVIEWERVTK in .vtu format. By doing > > that the entire volume components are written in the file. I was > wondering > > if there is an option that I can tell PETSc viewer to print out only > > surface component, instead of the entire volume. > > > > Best, > > Mike > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>