:orphan:
# ISViewFromOptions
View an `IS` based on options in the options database 
## Synopsis
```
#include "petscis.h" 
PetscErrorCode ISViewFromOptions(IS A, PetscObject obj, const char name[])
```
Collective


## Input Parameters

- ***A -*** the index set
- ***obj -*** Optional object that provides the prefix for the options database
- ***name -*** command line option





## Note
See `PetscObjectViewFromOptions()` for possible `PetscViewer` and `PetscViewerFormat` values


## See Also
 `IS`, `ISView()`, `PetscObjectViewFromOptions()`, `ISCreate()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/is/is/interface/index.c.html#ISViewFromOptions">src/vec/is/is/interface/index.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/tutorials/ex13.c.html">src/snes/tutorials/ex13.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/vec/utils/tagger/tutorials/ex1.c.html">src/vec/vec/utils/tagger/tutorials/ex1.c</A><BR>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/vec/is/is/interface/index.c)


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