petsc3.15.0 20210405
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
mixedtopology or variabledegree 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