DMPlexComputeCellGeometryFEM#
Compute the Jacobian, inverse Jacobian, and Jacobian determinant at each quadrature point in the given cell
Synopsis#
#include "petscdmplex.h"   
#include "petscfe.h"       
PetscErrorCode DMPlexComputeCellGeometryFEM(DM dm, PetscInt cell, PetscQuadrature quad, PetscReal *v, PetscReal *J, PetscReal *invJ, PetscReal *detJ)
Collective
Input Parameters#
- dm - the - DMPLEX
- cell - the cell 
- quad - the quadrature containing the points in the reference element where the geometry will be evaluated. If - quadis- NULL, geometry will be evaluated at the first vertex of the reference element
Output Parameters#
- v - the image of the transformed quadrature points, otherwise the image of the first vertex in the closure of the reference element 
- J - the Jacobian of the transform from the reference element at each quadrature point 
- invJ - the inverse of the Jacobian at each quadrature point 
- detJ - the Jacobian determinant at each quadrature point 
See Also#
Level#
advanced
Location#
Examples#
Implementations#
DMPlexComputeCellGeometryFEM_Implicit() in src/dm/impls/plex/plexgeometry.c
DMPlexComputeCellGeometryFEM_FE() in src/dm/impls/plex/plexgeometry.c
Index of all DMPlex routines
Table of Contents for all manual pages
Index of all manual pages