This sounds like what I need to do indeed. However, I cannot find a
function with such arguments in the help of *DoFHandler*. The closest I
could find is in *DoFAccessor*
*DoFAccessor (const Triangulation< dim, spacedim > * tria,const int
level,const int index,const DoFHandler< dim, spacedim > * dof_handler )*
Is this the one you were refering to ? but then I do not know how to apply
it to obtain an iterator "cell_2" on the 2nd cell.
Something like this does not get me an iterator "cell_2" though:
*DoFAccessor(cell_1->get_triangulation(), cell_1->level(),
cell_1->index(), dof_handler_2)*
and In the documentation of the class *DoFAccessor*, I could not figure out
another function to do that.
Maybe I am not using the good class though ?
Best,
Sylvain
El lunes, 12 de julio de 2021 a la(s) 17:00:01 UTC+2, Wolfgang Bangerth
escribió:
> On 7/12/21 4:18 AM, Sylvain Mathonnière wrote:
> >
> > _*Question:*_
> > How can I modify the cells worker loop (on dof1) initialisation to have
> a
> > second iterator linked with a second dof_handler looping at the same
> time ? or
> > how can I add a concurrentely running for loop to the cell_worker with a
> > different iterator ?
> >
> > I checked in step 16 and 47 as well as in the doc for MeshWorkers and I
> did
> > not find a solution to this problem. I hope the question is clear
> enough, do
> > not hesitate to inquires more details if I am missing something
> important.
>
> Sylvain,
> it's not going to be possible to hack this into MeshWorker::mesh_loop() in
> an
> easy way. But what you can do is this: Inside your assembler, whenever you
> are
> given a cell iterator pointing to a cell in dof_handler_1, you need to
> find
> the corresponding iterator for dof_handler_2. You can do this in the
> following
> way (up to typos and misspelled function names):
> DoFHandler::active_cell_iterator cell_2 (cell_1->get_triangulation(),
> cell_1->level(),
> cell_1->index(),
> cell_1->get_dof_handler());
>
> Best
> W.
>
> --
> ------------------------------------------------------------------------
> Wolfgang Bangerth email: [email protected]
> www: http://www.math.colostate.edu/~bangerth/
>
>
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