Re: [p4est] p4est_iterate() over one specified level only
- Alex Fikl
- 2015-03-23 @ 13:31
On Mon, Mar 23, 2015 at 6:05 AM, <firstname.lastname@example.org> wrote:
> I am trying to use the p4est-library for algorithms that require
multiple iterations over deeper levels in the tree. My algorithm also
requires to iterate over the deeper levels first and gradually go to the
> I have tried to find API calls that manage to do this, however
p4est_iterate() is doing the z-index approach and p4est_search() is doing
a top-down approach. Is there a API call that can iterate from the finer
levels towards the less refined ones?
The only way to do this that I can think of is by using p4est_mesh.
The quad_level member of p4est_mesh contains a list of lists of
per-level quadrant IDs that you can iterate over (see
example/mesh/mesh2.c for the most basic example).
Note that you have to use p4est_mesh_new_ext from p4est_extended with
the two extra arguments set to 1 to fill up these lists, as they are
not generated by default.
Iterating this way, you won't get useful neighborhood information like
from p4est_iter_*_info directly, but you can use other members of
p4est_mesh to achieve the same effect.
Hope that helps!
> Kind regards,