PETSc version 3.17.0
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# DMPlexSetAdjacencyUseAnchors

Define adjacency in the mesh using the point-to-point constraints.

### Synopsis

    #include "petscdmplex.h"
    #include "petscdmlabel.h"
    PetscErrorCode DMPlexSetAdjacencyUseAnchors(DM dm, PetscBool useAnchors)

### Input Parameters

| dm | - The DM object
| useAnchors | - Flag to use the constraints. If PETSC_TRUE, then constrained points are omitted from DMPlexGetAdjacency(), and their anchor points appear in their place.

### See Also

DMGetAdjacency(), DMSetAdjacency(), DMPlexDistribute(), DMPlexPreallocateOperator(), DMPlexSetAnchors()

### Level

intermediate

### Location

src/dm/impls/plex/plexdistribute.c
Index of all DMPLEX routines
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