DMPlexCreateRigidBodies#

For the default global section, create rigid body modes by function space interpolation

Synopsis#

#include "petscdmplex.h"   
PetscErrorCode DMPlexCreateRigidBodies(DM dm, PetscInt nb, DMLabel label, const PetscInt nids[], const PetscInt ids[], MatNullSpace *sp)

Collective

Input Parameters#

  • dm - the DM

  • nb - The number of bodies

  • label - The DMLabel marking each domain

  • nids - The number of ids per body

  • ids - An array of the label ids in sequence for each domain

Output Parameter#

  • sp - the null space

Note#

This is necessary to provide a suitable coarse space for algebraic multigrid

See Also#

DMPlex: Unstructured Grids, DM, DMPLEX, MatNullSpaceCreate()

Level#

advanced

Location#

src/dm/impls/plex/plexfem.c

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Index of all DMPlex routines
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Index of all manual pages