PETSc version 3.16.5
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# DMPlexCreateCoarsePointIS

Creates an IS covering the coarse DM chart with the fine points as data

### Synopsis

    #include "petscdmplex.h"
    PetscErrorCode DMPlexCreateCoarsePointIS(DM dm, IS *fpointIS)

Collective on dm

### Input Parameter

| dm | - The coarse DM

### Output Parameter

| fpointIS | - The IS of all the fine points which exist in the original coarse mesh

### See Also

DMRefine(), DMPlexSetRefinementUniform(), DMPlexGetSubpointIS()

### Level

developer

### Location

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