DMPlexComputeCellGeometryAffineFEM

Assuming an affine map, compute the Jacobian, inverse Jacobian, and Jacobian determinant for a given cell

Synopsis

#include "petscdmplex.h"   
#include "petscfe.h"       
PetscErrorCode DMPlexComputeCellGeometryAffineFEM(DM dm, PetscInt cell, PetscReal *v0, PetscReal *J, PetscReal *invJ, PetscReal *detJ)

Collective

Input Parameters

• dm - the DMPLEX

• cell - the cell

Output Parameters

• v0 - the translation part of this affine transform, meaning the translation to the origin (not the first vertex of the reference cell)

• J - the Jacobian of the transform from the reference element

• invJ - the inverse of the Jacobian

• detJ - the Jacobian determinant

See Also

DMPLEX, DMPlexComputeCellGeometryFEM(), DMGetCoordinateSection(), DMGetCoordinates()

Level

advanced

Location

src/dm/impls/plex/plexgeometry.c

Examples

src/dm/impls/plex/tutorials/ex3f90.F90

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Index of all DMPlex routines
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Index of all manual pages