petsc-master 2020-08-10
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DMPlexCompareOrientations

Compare the cone of the given DAG point (cell) with the given reference cone (with the same cone points modulo order), and return relative orientation.

Synopsis

#include "petscdmplex.h"   
PetscErrorCode DMPlexCompareOrientations(DM dm, PetscInt p, PetscInt masterConeSize, const PetscInt masterCone[], PetscInt *start, PetscBool *reverse)
Not Collective

Input Parameters

dm - The DM (DMPLEX)
p - The DAG point whose cone is compared
masterConeSize - Number of the reference cone points passed (at least 2 and at most size of the cone of p)
masterCone - The reference cone points

Output Parameters

start - The new starting point within the cone of p to make it conforming with the reference cone
reverse - The flag whether the order of the cone points should be reversed

See Also

DMPlexOrient(), DMPlexOrientCell()

Level

advanced

Location

src/dm/impls/plex/plexorient.c
Index of all DMPLEX routines
Table of Contents for all manual pages
Index of all manual pages