On Mon, Nov 11, 2013 at 11:46 AM, Anthony Vergottis
<[email protected]>wrote:
> Dear All,
>
> I would like some assistance on how a mesh is created using Triangle with
> the DM objects. Specifically how does one input the geometry of the
> computational domain into PETSc/DM objects to then generate a 2D triangular
> mesh? Is there a function that can do such a thing? Currently I have hard
> coded all mesh I/O but I would like to make things a bit cleaner if its
> possible.
>
The default 2D mesh generator in PETSc is Triangle. If you have a 1D
boundary, you can generate the 2D mesh using
DMPlexGenerate(boundaryDM, NULL, PETSC_FALSE, &dm)
or PETSC_TRUE if you want edges included. I suggest using
DMPlexCreateFromDAG() if you have programmatically
constructed your boundary, or DMPlexCreateFromCellList() if you get your
boundary from a meshing tool.
Thanks,
Matt
> Thanks in advance for any help.
>
> Best regards,
> Anthony
>
--
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
