petsc-master 2016-07-22
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Define adjacency in the mesh using the transitive closure

Synopsis

#include "petscdmplex.h"
#include "petscdmlabel.h"


Input Parameters

 dm - The DM object useClosure - Flag to use the closure

Notes

    FEM:   Two points p and q are adjacent if q \in closure(star(p)),   useCone = PETSC_FALSE, useClosure = PETSC_TRUE

    FVM:   Two points p and q are adjacent if q \in support(p+cone(p)), useCone = PETSC_TRUE,  useClosure = PETSC_FALSE

    FVM++: Two points p and q are adjacent if q \in star(closure(p)),   useCone = PETSC_TRUE,  useClosure = PETSC_TRUE