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# DMStagGetProductCoordinateArraysRead
extract product coordinate arrays, read-only 
## Synopsis
```
PetscErrorCode DMStagGetProductCoordinateArraysRead(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, not set for one dimensional problems
- ***arrZ -*** local 1D coordinate arrays for z direction, not set for one and two dimensional problems





## Note
See `DMStagGetProductCoordinateArrays()` for more information.


## See Also
 [](ch_stag), `DMSTAG`, `DMPRODUCT`, `DMStagGetProductCoordinateArrays()`, `DMStagSetUniformCoordinates()`, `DMStagSetUniformCoordinatesProduct()`, `DMStagGetProductCoordinateLocationSlot()`

## Level
intermediate

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

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/stag/tutorials/ex2.c.html">src/dm/impls/stag/tutorials/ex2.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/stag/tutorials/ex4.c.html">src/dm/impls/stag/tutorials/ex4.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)