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# DMPlexMetricCreateIsotropic
Construct an isotropic metric from an error indicator 
## Synopsis
```
#include "petscdmplex.h"   
PetscErrorCode DMPlexMetricCreateIsotropic(DM dm, PetscInt f, Vec indicator, Vec *metric)
```

## Input parameters

- ***dm        -*** The `DM`
- ***f         -*** The field number to use
- ***indicator -*** The error indicator



## Output parameter

- ***metric    -*** The isotropic metric





## Notes
It is assumed that the `DM` is comprised of simplices.

The indicator needs to be a scalar field. If it is not defined vertex-wise, then it is projected appropriately.


## See Also
 `DMPLEX`, `DMPlexMetricCreate()`, `DMPlexMetricCreateUniform()`

## Level
beginner

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


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[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)