Hi everybody,
I am trying to anisotropically refine a 2d mesh, but I am finding some
problems with cells that happen to be on the boundary of the surface.
For instance, if the surface is composed of only one cell, it is not
possible to refine it anysotropically, as the
Triangulation<dim,spacedim>::execute_coarsening_and_refinement() method
executes only an isotropic refinement in such case. This happens even if
an anisotropic refinement flag has been set.
>From what I have seen, I think that whenever asked to refine a cell with
an edge on the boundary of the surface, in the direction that is
perpendicular to such boundary, the
Triangulation<dim,spacedim>::execute_coarsening_and_refinement() method
executes an isotropic refinement, regardless of the anisotropic flag
set.
Is there a specific reason why this occurs? And, is there a way I can
force an anysotropic refinement on an arbitrary direction on boundary
cells?
Thanks,
Andrea
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