Dear Wolfgang,
In the meanwhile that the VectorTools::interpolate_based_on_material_id
function is taking care of, I just did the same through the following code
to change my solution vector in the specific regions with designated
material_id, which may be used by those who have the same issue with this
function until it is fixed. Hope it helps!
///////////////////////////////////
FEValues<dim> fe_values (fe, qf_cell, update_values );
std::vector<types::global_dof_index> local_dof_indices(dofs_per_cell);
typename DoFHandler<dim>::active_cell_iterator
cell = dof_handler.begin_active(),
endc = dof_handler_c.end();
for (; cell!=endc; ++cell)
if (cell->is_locally_owned())
{
fe_values.reinit(cell);
if (cell->material_id()==1)
{
cell->get_dof_indices (local_dof_indices);
for (unsigned int i=0; i<fe.dofs_per_cell; ++i)
solution(local_dof_indices[i])=1;
}
}
////////////////////////////////////////////
Thanks and regards,
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