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# DMStagRestoreProductCoordinateArrays
restore local array access 
## Synopsis
```
PetscErrorCode DMStagRestoreProductCoordinateArrays(DM dm, void *arrX, void *arrY, void *arrZ)
```
Logically Collective


## Input Parameter

- ***dm -*** the `DMSTAG` object



## Output Parameters

- ***arrX -*** local 1D coordinate arrays for x direction
- ***arrY -*** local 1D coordinate arrays for y direction
- ***arrZ -*** local 1D coordinate arrays for z direction





## Notes
This function does not automatically perform a local->global scatter to populate global coordinates from the local coordinates.

## Thus, it may be required to explicitly perform these operations in some situations, as in the following partial example

```
PetscCall(DMGetCoordinateDM(dm,&cdm));
for (d=0; d<3; ++d) {
DM  subdm;
Vec coor,coor_local;

PetscCall(DMProductGetDM(cdm,d,&subdm));
PetscCall(DMGetCoordinates(subdm,&coor));
PetscCall(DMGetCoordinatesLocal(subdm,&coor_local));
PetscCall(DMLocalToGlobal(subdm,coor_local,INSERT_VALUES,coor));
PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Coordinates dim %" PetscInt_FMT ":\n",d));
PetscCall(VecView(coor,PETSC_VIEWER_STDOUT_WORLD));
}
```


## See Also
 [](ch_stag), `DMSTAG`, `DMStagGetProductCoordinateArrays()`, `DMStagGetProductCoordinateArraysRead()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/stag/stagutils.c.html#DMStagRestoreProductCoordinateArrays">src/dm/impls/stag/stagutils.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/stag/tutorials/ex6.c.html">src/dm/impls/stag/tutorials/ex6.c</A><BR>


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[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)