:orphan:
# DMPlexCreateReferenceCell
Create a `DMPLEX` with the appropriate FEM reference cell
## Synopsis
```
#include "petscdmplex.h"
#include "petscdmplex.h"
PetscErrorCode DMPlexCreateReferenceCell(MPI_Comm comm, DMPolytopeType ct, DM *refdm)
```
Collective
## Input Parameters
- ***comm -*** The communicator
- ***ct -*** The cell type of the reference cell
## Output Parameter
- ***refdm -*** The reference cell
## See Also
[](ch_unstructured), `DM`, `DMPLEX`, `DMPlexCreateReferenceCell()`, `DMPlexCreateBoxMesh()`
## Level
intermediate
## Location
src/dm/impls/plex/plexcreate.c
## Examples
src/dm/dt/dualspace/impls/lagrange/tutorials/ex1.c
## Implementations
DMPlexCreateReferenceCell_Internal in src/dm/impls/plex/plexcreate.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/impls/plex/plexcreate.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)