petsc-3.9.4 2018-09-11

DMPlexGetAnchors

Get the layout of the anchor (point-to-point) constraints. Typically, the user will not have to call DMPlexGetAnchors() directly: if there are anchors, then DMPlexGetAnchors() is called during DMGetConstraints().

Synopsis

#include "petscdmplex.h"   
PetscErrorCode DMPlexGetAnchors(DM dm, PetscSection *anchorSection, IS *anchorIS)

not collective

Input Parameters

dm -The DMPlex object

Output Parameters

	anchorSection	- If not NULL, set to the section describing which points anchor the constrained points.
	anchorIS	- If not NULL, set to the list of anchors indexed by anchorSection

Level

intermediate

Location