# DMCompositeGetISLocalToGlobalMappings
gets an `ISLocalToGlobalMapping` for each `DM` in the `DMCOMPOSITE`, maps to the composite global space 
## Synopsis
```
#include "petscdmcomposite.h"  
PetscErrorCode DMCompositeGetISLocalToGlobalMappings(DM dm, ISLocalToGlobalMapping **ltogs)
```
Collective on dm


## Input Parameter

- ***dm -*** the `DMCOMPOSITE` object



## Output Parameters

- ***ltogs -*** the individual mappings for each packed vector. Note that this includes
all the ghost points that individual ghosted `DMDA` may have.





## Note
Each entry of ltogs should be destroyed with `ISLocalToGlobalMappingDestroy()`, the ltogs array should be freed with `PetscFree()`.


## Fortran Note
Not available from Fortran


## See Also
 `DMCOMPOSITE`, `DM`, `DMDestroy()`, `DMCompositeAddDM()`, `DMCreateGlobalVector()`,
`DMCompositeGather()`, `DMCompositeCreate()`, `DMCompositeGetAccess()`, `DMCompositeScatter()`,
`DMCompositeGetLocalVectors()`, `DMCompositeRestoreLocalVectors()`, `DMCompositeGetEntries()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/composite/pack.c.html#DMCompositeGetISLocalToGlobalMappings">src/dm/impls/composite/pack.c</A>


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


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