petsc-3.8.4 2018-03-24

DMSwarmGetField

Get access to the underlying array storing all entries associated with a registered field

Synopsis

#include "petscdmswarm.h"   
PETSC_EXTERN PetscErrorCode DMSwarmGetField(DM dm,const char fieldname[],PetscInt *blocksize,PetscDataType *type,void **data)

Not collective

Input parameters

	dm	- a DMSwarm
	fieldname	- the textual name to identify this field

Output parameters

	blocksize	- the number of each data type
	type	- the data type
	data	- pointer to raw array

Notes

The array must be returned using a matching call to DMSwarmRestoreField().

Examples