DMPlexPointLocalRef#

return read/write access to a point in local array

Synopsis#

#include "petscdmplex.h"   
PetscErrorCode DMPlexPointLocalRef(DM dm, PetscInt point, PetscScalar *array, void *ptr)

Not Collective

Input Parameters#

dm - DM defining topological space
point - topological point
array - array to index into

Output Parameter#

ptr - address of reference to point data, type generic so user can place in structure

Note#

A common usage when data sizes are known statically#

  struct { PetscScalar foo,bar,baz; } *ptr;
  DMPlexPointLocalRef(dm,point,array,&ptr);
  ptr->foo = 2; ptr->bar = 3; ptr->baz = 5;

See Also#

DMPlex: Unstructured Grids, DM, DMPLEX, DMGetLocalSection(), PetscSectionGetOffset(), PetscSectionGetDof(), DMPlexGetPointLocal(), DMPlexPointGlobalRef()

Level#

intermediate

Location#

src/dm/impls/plex/plexpoint.c

Examples#

src/dm/impls/plex/tutorials/ex11.c
src/snes/tutorials/ex17.c
src/ts/tutorials/ex11.c
src/ts/tutorials/ex11_sa.c

Index of all DMPlex routines
Table of Contents for all manual pages
Index of all manual pages