DMPlexSetTree

set the tree that describes the hierarchy of non-conforming mesh points. This routine also creates the point-to-point constraints determined by the tree: a point is constrained to the points in the closure of its tree root.

Synopsis

#include "petscdmplex.h"   
PetscErrorCode DMPlexSetTree(DM dm, PetscSection parentSection, PetscInt parents[], PetscInt childIDs[])

Collective

Input Parameters

• dm - the DMPLEX object

• parentSection - a section describing the tree: a point has a parent if it has 1 dof in the section; the section offset indexes the parent and childID list; the reference count of parentSection is incremented

• parents - a list of the point parents; copied, can be destroyed

• childIDs - identifies the relationship of the child point to the parent point; if there is a reference tree, then the child corresponds to the point in the reference tree with index childIDs; copied, can be destroyed

See Also

DMPlex: Unstructured Grids, DM, DMPLEX, DMPlexGetTree(), DMPlexSetReferenceTree(), DMPlexSetAnchors(), DMPlexGetTreeParent(), DMPlexGetTreeChildren()

Level

intermediate

Location

src/dm/impls/plex/plextree.c

Implementations

DMPlexSetTree_Internal() in src/dm/impls/plex/plextree.c

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Index of all DMPlex routines
Table of Contents for all manual pages
Index of all manual pages