> Is there an easy way to output the solution at support points along with
> the nodal values? The output I get is only at nodes when I attach data
> with dof-handler.

Not easily, at least not graphically. However, you can use
  DoFTools::map_dofs_to_support_points
to query the location of all DoFs and then output both this and the value 
of the solution there.

Best
 W.

-------------------------------------------------------------------------
Wolfgang Bangerth                email:            [email protected]
                                 www: http://www.math.tamu.edu/~bangerth/

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