:orphan: # DMLabelGetValue Return the value a label assigns to a point, or the label's default value (which is initially -1, and can be changed with `DMLabelSetDefaultValue()`) ## Synopsis ``` #include "petscdmlabel.h" #include "petscsection.h" PetscErrorCode DMLabelGetValue(DMLabel label, PetscInt point, PetscInt *value) ``` Not Collective ## Input Parameters - ***label -*** the `DMLabel` - ***point -*** the point ## Output Parameter - ***value -*** The point value, or the default value (-1 by default) ## Note A label may assign multiple values to a point. No guarantees are made about which value is returned in that case. Use `DMLabelStratumHasPoint()` to check for inclusion in a specific value stratum. ## See Also `DMLabel`, `DM`, `DMLabelCreate()`, `DMLabelSetValue()`, `DMLabelClearValue()`, `DMLabelGetDefaultValue()`, `DMLabelSetDefaultValue()` ## Level intermediate ## Location src/dm/label/dmlabel.c ## Examples src/dm/impls/plex/tutorials/ex10.c
src/dm/impls/plex/tutorials/ex1f90.F90
src/dm/label/tutorials/ex1.c
src/snes/tutorials/ex17.c
src/ts/tutorials/ex11.c
--- [Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/label/dmlabel.c) [Index of all DMLabel routines](index.md) [Table of Contents for all manual pages](/manualpages/index.md) [Index of all manual pages](/manualpages/singleindex.md)