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# DMPlexGetMaxProjectionHeight
Get the maximum height (w.r.t. DAG) of mesh points used to evaluate dual bases in DMPlexProjectXXXLocal() functions. 
## Synopsis
```
#include "petscdmplex.h"   
PetscErrorCode DMPlexGetMaxProjectionHeight(DM dm, PetscInt *height)
```

## Input Parameter

- ***dm -*** the `DMPLEX` object



## Output Parameter

- ***height -*** the maximum projection height





## See Also
 [](ch_unstructured), `DM`, `DMPLEX`, `DMPlexSetMaxProjectionHeight()`, `DMProjectFunctionLocal()`, `DMProjectFunctionLabelLocal()`

## Level
intermediate

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


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