DMPlexBuildFromCellList#

Build DMPLEX topology from a list of vertices for each cell (common mesh generator output)

Synopsis#

#include "petscdmplex.h"   
#include "petscdmplex.h"   
PetscErrorCode DMPlexBuildFromCellList(DM dm, PetscInt numCells, PetscInt numVertices, PetscInt numCorners, const PetscInt cells[])

Input Parameters#

  • dm - The DM

  • numCells - The number of cells owned by this process

  • numVertices - The number of vertices owned by this process, or PETSC_DETERMINE

  • numCorners - The number of vertices for each cell

  • cells - An array of numCells*numCorners numbers, the global vertex numbers for each cell

Notes#

Two triangles sharing a face


2
/ | \
/  |  \
/   |   \
0  0 | 1  3
\   |   /
\  |  /
\ | /
1

would have input

numCells = 2, numVertices = 4
cells = [0 1 2  1 3 2]

which would result in the DMPlex


4
/ | \
/  |  \
/   |   \
2  0 | 1  5
\   |   /
\  |  /
\ | /
3

If numVertices is PETSC_DETERMINE, it is computed by PETSc as the maximum vertex index in cells + 1.

Not currently supported in Fortran.

See Also#

DMPlexBuildFromCellListParallel(), DMPlexBuildCoordinatesFromCellList(), DMPlexCreateFromCellListPetsc()

Level#

advanced

Location#

src/dm/impls/plex/plexcreate.c


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Index of all DMPlex routines
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Index of all manual pages