:orphan:
# DMStagGetGhostCorners
return global element indices of the local region, including ghost points
## Synopsis
```
PetscErrorCode DMStagGetGhostCorners(DM dm, PetscInt *x, PetscInt *y, PetscInt *z, PetscInt *m, PetscInt *n, PetscInt *p)
```
Not Collective
## Input Parameter
- ***dm -*** the `DMSTAG` object
## Output Parameters
- ***x -*** the starting element index in the first direction
- ***y -*** the starting element index in the second direction
- ***z -*** the starting element index in the third direction
- ***m -*** the element width in the first direction
- ***n -*** the element width in the second direction
- ***p -*** the element width in the third direction
## Note
Arguments corresponding to higher dimensions are ignored for 1D and 2D grids. These arguments may be set to `NULL` in this case.
## See Also
[](ch_stag), `DMSTAG`, `DMStagGetCorners()`, `DMDAGetGhostCorners()`
## Level
beginner
## Location
src/dm/impls/stag/stagutils.c
## Examples
src/dm/impls/stag/tutorials/ex4.c
---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/impls/stag/stagutils.c)
[Index of all DMStag routines](index.md)
[Table of Contents for all manual pages](/manualpages/index.md)
[Index of all manual pages](/manualpages/singleindex.md)