DMPlexPointLocalRead#
return read access to a point in local array
Synopsis#
#include "petscdmplex.h"   
PetscErrorCode DMPlexPointLocalRead(DM dm, PetscInt point, const PetscScalar *array, void *ptr)
Not Collective
Input Parameters#
- dm - - DMdefining topological space
- point - topological point 
- array - array to index into 
Output Parameter#
- ptr - address of read reference to point data, type generic so user can place in structure 
Note#
A common usage when data sizes are known statically:
  const struct { PetscScalar foo,bar,baz; } *ptr;
  DMPlexPointLocalRead(dm,point,array,&ptr);
  x = 2*ptr->foo + 3*ptr->bar + 5*ptr->baz;
See Also#
DMPlex: Unstructured Grids, DM, DMPLEX, DMGetLocalSection(), PetscSectionGetOffset(), PetscSectionGetDof(), DMPlexGetPointLocal(), DMPlexPointGlobalRead()
Level#
intermediate
Location#
Examples#
src/dm/impls/plex/tutorials/ex6.c
src/ts/tutorials/ex11_sa.c
src/ts/tutorials/ex18.c
src/ts/tutorials/ex11.c
src/ts/tutorials/ex52.c
Index of all DMPlex routines
Table of Contents for all manual pages
Index of all manual pages