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# ISLocalToGlobalMappingGetIndices
Get global indices for every local point that is mapped
## Synopsis
```
#include "petscis.h"
PetscErrorCode ISLocalToGlobalMappingGetIndices(ISLocalToGlobalMapping ltog, const PetscInt **array)
```
Not Collective
## Input Parameter
- ***ltog -*** local to global mapping
## Output Parameter
- ***array -*** array of indices, the length of this array may be obtained with `ISLocalToGlobalMappingGetSize()`
## Note
`ISLocalToGlobalMappingGetSize()` returns the length the this array
## See Also
[](sec_scatter), `ISLocalToGlobalMappingCreate()`, `ISLocalToGlobalMappingApply()`, `ISLocalToGlobalMappingRestoreIndices()`,
`ISLocalToGlobalMappingGetBlockIndices()`, `ISLocalToGlobalMappingRestoreBlockIndices()`
## Level
advanced
## Location
src/vec/is/utils/isltog.c
## Examples
src/ksp/ksp/tutorials/ex43.c
src/ksp/ksp/tutorials/ex49.c
src/ksp/ksp/tutorials/ex70.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/vec/is/utils/isltog.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)