DMGetCoordinates#

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

Synopsis#

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

Collective on dm

Input Parameter#

  • dm - the DM

Output Parameter#

  • c - global coordinate vector

Notes#

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#

DM, DMDA, DMSetCoordinates(), DMGetCoordinatesLocal(), DMGetCoordinateDM(), DMDASetUniformCoordinates()

Level#

intermediate

Location#

src/dm/interface/dmcoordinates.c

Examples#

src/dm/impls/stag/tutorials/ex3.c.html
src/dm/tutorials/ex25.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/ex16.c.html
src/snes/tutorials/ex22.c.html


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Index of all DM routines
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Index of all manual pages