On 7/15/21 3:09 PM, Kaushik Das wrote:
Is there a way to know which dof_index is located at which vertex.
For example, I want to "map" a dof_index that I get from
affine_constrains.get_constraint_entries(line);
to a vertex index that are in the range of triangulation.begin_vertex() and
triangulation.end_vertex().
Kaushik,
there is no such way in the library because, in general, DoFs need not be
located on vertices. That is only true for the Q1 element.
But if you look at the implementation of the
DoFTools::map_dofs_to_support_points(), you can probably come up with a way to
get what you are looking, assuming you really are only using Q1 elements.
Best
W.
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