DMPlexCreateSection#
Create a PetscSection
based upon the dof layout specification provided.
Synopsis#
#include "petscdmplex.h"
PetscErrorCode DMPlexCreateSection(DM dm, DMLabel label[], const PetscInt numComp[], const PetscInt numDof[], PetscInt numBC, const PetscInt bcField[], const IS bcComps[], const IS bcPoints[], IS perm, PetscSection *section)
Not Collective
Input Parameters#
dm - The
DMPLEX
objectlabel - The label indicating the mesh support of each field, or NULL for the whole mesh
numComp - An array of size numFields that holds the number of components for each field
numDof - An array of size numFields*(dim+1) which holds the number of dof for each field on a mesh piece of dimension d
numBC - The number of boundary conditions
bcField - An array of size numBC giving the field number for each boundary condition
bcComps - [Optional] An array of size numBC giving an
IS
holding the field components to which each boundary condition appliesbcPoints - An array of size numBC giving an
IS
holding theDMPLEX
points to which each boundary condition appliesperm - Optional permutation of the chart, or NULL
Output Parameter#
section - The
PetscSection
object
Notes#
numDof[f*(dim+1)+d] gives the number of dof for field f on points of dimension d. For instance, numDof[1] is the number of dof for field 0 on each edge.
The chart permutation is the same one set using PetscSectionSetPermutation()
See Also#
DMPlex: Unstructured Grids, DM
, DMPLEX
, DMPlexCreate()
, PetscSectionCreate()
, PetscSectionSetPermutation()
Level#
developer
Location#
Examples#
src/dm/impls/plex/tutorials/ex6.c
src/dm/impls/plex/tutorials/ex14.c
src/dm/tutorials/ex20.c
src/dm/impls/plex/tutorials/ex1f90.F90
src/dm/impls/plex/tutorials/ex1.c
src/ts/tutorials/ex52.c
src/dm/tutorials/ex21.c
Index of all DMPlex routines
Table of Contents for all manual pages
Index of all manual pages