petsc-3.14.5 2021-03-03
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# DMGetStratumIS

Get the points in a label stratum

### Synopsis

    #include "petscdm.h"
    #include "petscdmlabel.h"
    #include "petscds.h"
    PetscErrorCode DMGetStratumIS(DM dm, const char name[], PetscInt value, IS *points)

Not Collective

### Input Parameters

| dm | - The DM object
| name | - The label name
| value | - The stratum value

### Output Parameter

| points | - The stratum points, or NULL if the label does not exist or does not have that value

### See Also

DMLabelGetStratumIS(), DMGetStratumSize()

### Level

beginner

### Location

src/dm/interface/dm.c

### Examples

src/dm/impls/plex/tutorials/ex1.c.html
src/dm/impls/plex/tutorials/ex1f90.F90.html
src/snes/tutorials/ex56.c.html
src/snes/tutorials/ex77.c.html
src/ts/tutorials/ex11.c.html
src/ts/tutorials/ex52.c.html
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages