PetscSectionSymLabelGetStratum#
get the symmetries for the orientations of a stratum
Synopsis#
#include "petscdmlabel.h"   
#include "petscsection.h"   
PetscErrorCode PetscSectionSymLabelGetStratum(PetscSectionSym sym, PetscInt stratum, PetscInt *size, PetscInt *minOrient, PetscInt *maxOrient, const PetscInt ***perms, const PetscScalar ***rots)
Logically Collective
Input Parameters#
- sym - the section symmetries 
- stratum - the stratum value in the label that we are assigning symmetries for 
Output Parameters#
- size - the number of dofs for points in the - stratumof the label
- minOrient - the smallest orientation for a point in this - stratum
- maxOrient - one greater than the largest orientation for a ppoint in this - stratum(i.e., orientations are in the range [- minOrient,- maxOrient))
- perms - - NULLif there are no permutations, or (- maxOrient-- minOrient) permutations, one for each orientation. A- NULLpermutation is the identity
- rots - - NULLif there are no rotations, or (- maxOrient-- minOrient) sets of rotations, one for each orientation. A- NULLset of orientations is the identity
See Also#
DMLabel, DM, PetscSectionSymLabelSetStratum(), PetscSectionSymCreate(), PetscSectionSetSym(), PetscSectionGetPointSyms(), PetscSectionSymCreateLabel()
Level#
developer
Location#
Index of all DMLabel routines
Table of Contents for all manual pages
Index of all manual pages