dof_to_vertex_map for higher order

Question

I need to determine the vertex dofs with a higher order conforming space, just like in
http://fenicsproject.org/qa/2235/identify-vertex-dofs-for-higher-order-spaces .

Could the issue be solved by now and, if not, could anyone suggest a nice way around?
Thanks a lot.
Serge

Answer 1

You can get this information via the dof map. See GenericDofMap::tabulate_entity_dofs to get the local dof indices associated with a given mesh mesh entity.

Comments

Thanks for the hint.
Finally I solved my problem changing
dof_to_vertex_map(V)
to
V.dofmap().dofs()
(where V = FunctionSpace(mesh, "Lagrange", degree) )
Both commands give the same results (at least for the simple meshes I use, and except for a small difference in dtype (uint64 vs. int32) ), but the second works also for degrees higher than one.
Thanks again,
Serge