petsc-3.3-p7 2013-05-11


Return the orientations on the in-edges for this point in the Sieve DAG


#include "petscdmcomplex.h"   
PetscErrorCode DMComplexGetConeOrientation(DM dm, PetscInt p, const PetscInt *coneOrientation[])
Not collective

Input Parameters

mesh - The DMComplex
p - The Sieve point, which must lie in the chart set with DMComplexSetChart()

Output Parameter

coneOrientation -An array of orientations which are on the in-edges for point p. An orientation is an integer giving the prescription for cone traversal. If it is negative, the cone is traversed in the opposite direction. Its value 'o', or if negative '-(o+1)', gives the index of the cone point on which to start.


This routine is not available in Fortran.

See Also

DMComplexCreate(), DMComplexGetCone(), DMComplexSetCone(), DMComplexSetChart()

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