petsc-main 2021-04-20
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DMGetCoordinates

Gets a global vector with the coordinates associated with the DM.

Synopsis

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMGetCoordinates(DM dm, Vec *c)
Collective on dm

Input Parameter

dm - the DM

Output Parameter

c - global coordinate vector

Note

This is a borrowed reference, so the user should NOT destroy this vector. When the DM is destroyed the array will no longer be valid.

Each process has only the locally-owned portion of the global coordinates (does NOT have the ghost coordinates).

For DMDA, in two and three dimensions coordinates are interlaced (x_0,y_0,x_1,y_1,...) and (x_0,y_0,z_0,x_1,y_1,z_1...)

See Also

DMSetCoordinates(), DMGetCoordinatesLocal(), DMGetCoordinateDM(), DMDASetUniformCoordinates()

Level

intermediate

Location

src/dm/interface/dm.c

Examples

src/dm/impls/stag/tutorials/ex3.c.html
src/dm/tutorials/ex3.c.html
src/dm/tutorials/ex4.c.html
src/dm/tutorials/swarm_ex1.c.html
src/dm/tutorials/swarm_ex3.c.html
src/ksp/ksp/tutorials/ex49.c.html
src/ksp/ksp/tutorials/ex69.c.html
src/ksp/ksp/tutorials/ex71.c.html
src/snes/tutorials/ex5.c.html
src/snes/tutorials/ex22.c.html
src/snes/tutorials/ex33.c.html

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