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# DMNetworkMonitorAdd
Adds a new viewer to a `DMNetworkMonitor` 
## Synopsis
```
#include "petscdmnetwork.h"  
PetscErrorCode DMNetworkMonitorAdd(DMNetworkMonitor monitor, const char *name, PetscInt element, PetscInt nodes, PetscInt start, PetscInt blocksize, PetscReal xmin, PetscReal xmax, PetscReal ymin, PetscReal ymax, PetscBool hold)
```
Collective


## Input Parameters

- ***monitor -*** the monitor
- ***name -*** name of viewer
- ***element -*** vertex / edge number
- ***nodes -*** number of nodes
- ***start -*** variable starting offset
- ***blocksize -*** variable blocksize
- ***xmin -*** xmin (or `PETSC_DECIDE`) for viewer
- ***xmax -*** xmax (or `PETSC_DECIDE`) for viewer
- ***ymin -*** ymin for viewer
- ***ymax -*** ymax for viewer
- ***hold -*** determines if plot limits should be held





## Notes
This is written to be independent of the semantics associated to the variables
at a given network vertex / edge.

Precisely, the parameters nodes, start and blocksize allow you to select a general
strided subarray of the variables to monitor.


## See Also
 `DM`, `DMNETWORK`, `DMNetworkMonitor`, `DMNetworkMonitorCreate()`, `DMNetworkMonitorDestroy()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/network/networkmonitor.c.html#DMNetworkMonitorAdd">src/dm/impls/network/networkmonitor.c</A>


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


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