DMGetRegionDS#
Get the PetscDS for a given mesh region, defined by a DMLabel
Synopsis#
#include "petscdm.h"
#include "petscdmlabel.h"
#include "petscds.h"
PetscErrorCode DMGetRegionDS(DM dm, DMLabel label, IS *fields, PetscDS *ds)
Not collective
Input Parameters#
dm - The DM
label - The DMLabel defining the mesh region, or NULL for the entire mesh
Output Parameters#
fields - The IS containing the DM field numbers for the fields in this DS, or NULL
prob - The PetscDS defined on the given region, or NULL
Note#
If a non-NULL label is given, but there is no PetscDS on that specific label, the PetscDS for the full domain (if present) is returned. Returns with fields=NULL and prob=NULL if there is no PetscDS for the full domain.
See Also#
DMGetRegionNumDS()
, DMSetRegionDS()
, DMGetDS()
, DMGetCellDS()
Level#
advanced
Location#
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages