How can I find the true location of a degree of freedom?
I have a finite element solution vector of the same length as the number of degrees of freedom. If I know the index of the degree of freedom I would like to know the location of the degree of freedom so I can use VectorTools::point_value to get the value of a different solution at the same point (which comes from a different dof_handler defined on the same grid). I don't want to/can't use VectorTools::interpolate as I am working with hp.
I think there must be some correspondence between dofs and locations, but I can't work out how to extract it. I was going to use support points, but I am dealing with discontinuous elements so the cells don't have any.
Thanks, John _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
