DMPolytopeMatchOrientation#

Determine an orientation (transformation) that takes the source face arrangement to the target face arrangement

Synopsis#

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMPolytopeMatchOrientation(DMPolytopeType ct, const PetscInt sourceCone[], const PetscInt targetCone[], PetscInt *ornt, PetscBool *found)

Not Collective

Input Parameters#

  • ct - The DMPolytopeType

  • sourceCone - The source arrangement of faces

  • targetCone - The target arrangement of faces

Output Parameters#

  • ornt - The orientation (transformation) which will take the source arrangement to the target arrangement

  • found - Flag indicating that a suitable orientation was found

Note#

An arrangement is a face order combined with an orientation for each face

Each orientation (transformation) is labeled with an integer from negative DMPolytopeTypeGetNumArrangments(ct)/2 to DMPolytopeTypeGetNumArrangments(ct)/2 that labels each arrangement (face ordering plus orientation for each face).

See DMPolytopeMatchVertexOrientation() to find a new vertex orientation that takes the source vertex arrangement to the target vertex arrangement

See Also#

DM Basics, DM, DMPolytopeGetOrientation(), DMPolytopeMatchVertexOrientation(), DMPolytopeGetVertexOrientation()

Level#

advanced

Location#

src/dm/interface/dm.c

Examples#

src/dm/impls/plex/tutorials/ex11.c

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