PETSc version 3.17.0
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DMPlexRefineRegularGetAffineFaceTransforms

Gets the affine map from the reference face cell to each face in the given cell

Synopsis

#include "petscdmplextransform.h" 
PetscErrorCode DMPlexRefineRegularGetAffineFaceTransforms(DMPlexTransform tr, DMPolytopeType ct, PetscInt *Nf, PetscReal *v0[], PetscReal *J[], PetscReal *invJ[], PetscReal *detJ[])

Input Parameters

cr - The DMPlexCellRefiner object
ct - The cell type

Output Parameters

Nf - The number of faces for this cell type
v0 - The translation of the first vertex for each face
J - The Jacobian for each face (map from original cell to subcell)
invJ - The inverse Jacobian for each face
detJ - The determinant of the Jacobian for each face

Note: The Jacobian and inverse Jacboian will be rectangular, and the inverse is really a generalized inverse.

        v0 + j x_face = x_cell
   invj (x_cell - v0) = x_face

See Also

DMPlexCellRefinerGetAffineTransforms(), Create()

Level

developer

Location

src/dm/impls/plex/transform/impls/refine/regularplexrefregular.c
Index of all DMPLEX routines
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Index of all manual pages