petsc-3.7.3 2016-07-24
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# DMPlexCreateSubmesh

Extract a hypersurface from the mesh using vertices defined by a label

### Synopsis

    #include "petscdmplex.h"
    #include "petscdmlabel.h"
    PetscErrorCode DMPlexCreateSubmesh(DM dm, DMLabel vertexLabel, PetscInt value, DM *subdm)

### Input Parameters

| dm | - The original mesh
| vertexLabel | - The DMLabel marking vertices contained in the surface
| value | - The label value to use

### Output Parameter

subdm -The surface mesh

Note: This function produces a DMLabel mapping original points in the submesh to their depth. This can be obtained using DMPlexGetSubpointMap().

### See Also

DMPlexGetSubpointMap(), DMGetLabel(), DMLabelSetValue()

Level:developer
Location: src/dm/impls/plex/plexsubmesh.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages