# DMPlexGetConeTuple
Return the points on the in-edges of several points in the DAG 
## Synopsis
```
#include "petscdmplex.h"   
PetscErrorCode DMPlexGetConeTuple(DM dm, IS p, PetscSection *pConesSection, IS *pCones)
```
Not Collective


## Input Parameters

- ***dm -*** The `DMPLEX`
- ***p -*** The `IS` of points, which must lie in the chart set with `DMPlexSetChart()`



## Output Parameters

- ***pConesSection -*** `PetscSection` describing the layout of pCones
- ***pCones -*** An array of points which are on the in-edges for the point set p





## See Also
 [](chapter_unstructured), `DM`, `DMPLEX`, `DMPlexCreate()`, `DMPlexGetCone()`, `DMPlexGetConeRecursive()`, `DMPlexSetChart()`, `PetscSection`, `IS`

## Level
intermediate

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


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