petsc-3.14.6 2021-03-30
PetscSectionSetClosurePermutation
Set the dof permutation for the closure of each cell in the section, meaning clPerm[newIndex] = oldIndex.
Synopsis
#include "petscsection.h"
PetscErrorCode PetscSectionSetClosurePermutation(PetscSection section, PetscObject obj, PetscInt depth, IS perm)
Not Collective
Input Parameters
| section | - The PetscSection
|
| obj | - A PetscObject which serves as the key for this index (usually a DM)
|
| depth | - Depth of points on which to apply the given permutation
|
| perm | - Permutation of the cell dof closure
|
Note
The specified permutation will only be applied to points at depth whose closure size matches the length of perm. In a
mixed-topology or variable-degree finite element space, this function can be called multiple times at each depth for
each topology and degree.
This approach assumes that (depth, len(perm)) uniquely identifies the desired permutation; this might not be true for
exotic/enriched spaces on mixed topology meshes.
See Also
PetscSectionGetClosurePermutation(), PetscSectionGetClosureIndex(), DMPlexCreateClosureIndex(), PetscCopyMode
Level
intermediate
Location
src/vec/is/section/interface/section.c
Examples
src/dm/impls/plex/tutorials/ex6.c.html
Index of all PetscSection routines
Table of Contents for all manual pages
Index of all manual pages