petsc-3.14.6 2021-03-30

DMPlexCreateRigidBody

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

#include "petscdmplex.h"   
PetscErrorCode DMPlexCreateRigidBody(DM dm, PetscInt field, MatNullSpace *sp)

Collective on dm

	dm	- the DM
	field	- The field number for the rigid body space, or 0 for the default

- the null space

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

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