Jehanzeb Hameed wrote: > Hello, > > I am new to Dolfin, and was wondering how subdomains are supported as > regards to mesh reading and refinement. In my case, I will have a > mesh, with 2 subdomains. Each cell has an identifier indicating which > domain it belongs to. Looking at the examples, it seems I will need to > store domain identifiers in a separate xml file. Is that correct?
Subdomain identifiers can be stored in different ways, as a separate MeshFunction, or in the MeshData structure. I prefer MeshData, because it is directly included in the Mesh object. You can also store boundary indicators using MeshData structure, see demo/pde/bcs. > With regard to mesh refinement, I assume I will be able to define > subdomains for each domain based on cell identifiers. Now, when I > refine the mesh, will the subdomains also be updated (i.e. will dolfin > know what domain the new cells belong to) ? If you name your MeshFunction "material indicators" it will be transformed to follow refined mesh. Arrays which store boundary indicators will be updated too. See LocalMeshRefinement::transformMeshData() > Also, is there a way to read archives of this list? Yes, there is http://www.fenics.org/pipermail/dolfin-dev/ regrds. BArtek > > Thanks, > -Jehanzeb > _______________________________________________ > DOLFIN-dev mailing list > DOLFIN-dev@fenics.org > http://www.fenics.org/mailman/listinfo/dolfin-dev _______________________________________________ DOLFIN-dev mailing list DOLFIN-dev@fenics.org http://www.fenics.org/mailman/listinfo/dolfin-dev
