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# DMPlexGetSupport
Return the points on the out-edges for this point in the DAG 
## Synopsis
```
#include "petscdmplex.h"   
PetscErrorCode DMPlexGetSupport(DM dm, PetscInt p, const PetscInt *support[])
```
Not Collective


## Input Parameters

- ***mesh -*** The `DMPLEX`
- ***p -*** The point, which must lie in the chart set with `DMPlexSetChart()`



## Output Parameter

- ***support -*** An array of points which are on the out-edges for point `p`





## Fortran Note
You must also call `DMPlexRestoreSupport()` after you finish using the returned array.
`DMPlexRestoreSupport()` is not needed/available in C.


## See Also
 [](ch_unstructured), `DM`, `DMPLEX`, `DMPlexGetSupportSize()`, `DMPlexSetSupport()`, `DMPlexGetCone()`, `DMPlexSetChart()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/plex/plex.c.html#DMPlexGetSupport">src/dm/impls/plex/plex.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/tutorials/ex7.c.html">src/snes/tutorials/ex7.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/ex11.c.html">src/ts/tutorials/ex11.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/ex11_sa.c.html">src/ts/tutorials/ex11_sa.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/ex52.c.html">src/ts/tutorials/ex52.c</A><BR>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/impls/plex/plex.c)


[Index of all DMPlex routines](index.md)  
[Table of Contents for all manual pages](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)