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# DMStagGetLocationSlot
get index to use in accessing raw local arrays
## Synopsis
```
PetscErrorCode DMStagGetLocationSlot(DM dm, DMStagStencilLocation loc, PetscInt c, PetscInt *slot)
```
Not Collective
## Input Parameters
- ***dm -*** the `DMSTAG` object
- ***loc -*** location relative to an element
- ***c -*** component
## Output Parameter
- ***slot -*** index to use
## Notes
Provides an appropriate index to use with `DMStagVecGetArray()` and friends.
This is required so that the user doesn't need to know about the ordering of
dof associated with each local element.
## See Also
[](ch_stag), `DMSTAG`, `DMStagVecGetArray()`, `DMStagVecGetArrayRead()`, `DMStagGetDOF()`, `DMStagGetEntriesPerElement()`
## Level
beginner
## Location
src/dm/impls/stag/stagutils.c
## Examples
src/dm/impls/stag/tutorials/ex1.c
src/dm/impls/stag/tutorials/ex2.c
src/dm/impls/stag/tutorials/ex3.c
src/dm/impls/stag/tutorials/ex4.c
src/dm/impls/stag/tutorials/ex6.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)