petsc-3.14.5 2021-03-03
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# DMGetNumLabels

Return the number of labels defined by the mesh

### Synopsis

    #include "petscdm.h"
    #include "petscdmlabel.h"
    #include "petscds.h"
    PetscErrorCode DMGetNumLabels(DM dm, PetscInt *numLabels)

Not Collective

### Input Parameter

| dm | - The DM object

### Output Parameter

| numLabels | - the number of Labels

### See Also

DMGetLabelValue(), DMSetLabelValue(), DMGetStratumIS()

### Level

intermediate

### Location

src/dm/interface/dm.c

### Examples

src/dm/label/tutorials/ex1.c.html
src/dm/label/tutorials/ex1f90.F90.html
src/ts/tutorials/ex11.c.html
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages