petsc3.13.6 20200929
DMPlexGetConeOrientation
Return the orientations on the inedges for this point in the DAG
Synopsis
#include "petscdmplex.h"
PetscErrorCode DMPlexGetConeOrientation(DM dm, PetscInt p, const PetscInt *coneOrientation[])
Not collective
Input Parameters
 mesh   The DMPlex

 p   The point, which must lie in the chart set with DMPlexSetChart()

Output Parameter
coneOrientation An array of orientations which are on the inedges 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.
Fortran Notes
Since it returns an array, this routine is only available in Fortran 90, and you must
include petsc.h90 in your code.
You must also call DMPlexRestoreConeOrientation() after you finish using the returned array.
DMPlexRestoreConeOrientation() is not needed/available in C.
See Also
DMPlexCreate(), DMPlexGetCone(), DMPlexSetCone(), DMPlexSetChart()
Level
beginner
Location
src/dm/impls/plex/plex.c
Examples
src/ts/tutorials/ex11.c.html
Index of all DMPLEX routines
Table of Contents for all manual pages
Index of all manual pages