PetscSpaceEvaluate#
Evaluate the basis functions and their derivatives (jet) at each point
Synopsis#
#include "petscfe.h"  
PetscErrorCode PetscSpaceEvaluate(PetscSpace sp, PetscInt npoints, const PetscReal points[], PetscReal B[], PetscReal D[], PetscReal H[])
Input Parameters#
- sp - The - PetscSpace
- npoints - The number of evaluation points, in reference coordinates 
- points - The point coordinates 
Output Parameters#
- B - The function evaluations in a - npointsx- nfuncsarray
- D - The derivative evaluations in a - npointsx- nfuncsx- dimarray
- H - The second derivative evaluations in a - npointsx- nfuncsx- dimx- dimarray
Note#
Above nfuncs is the dimension of the space, and dim is the spatial dimension. The coordinates are given
on the reference cell, not in real space.
See Also#
PetscSpace, PetscFECreateTabulation(), PetscFEGetCellTabulation(), PetscSpaceCreate()
Level#
beginner
Location#
Implementations#
PetscSpaceEvaluate_Point() in src/dm/dt/space/impls/point/spacepoint.c
PetscSpaceEvaluate_Polynomial() in src/dm/dt/space/impls/poly/spacepoly.c
PetscSpaceEvaluate_Ptrimmed() in src/dm/dt/space/impls/ptrimmed/spaceptrimmed.c
PetscSpaceEvaluate_Subspace() in src/dm/dt/space/impls/subspace/spacesubspace.c
PetscSpaceEvaluate_Sum() in src/dm/dt/space/impls/sum/spacesum.c
PetscSpaceEvaluate_Tensor() in src/dm/dt/space/impls/tensor/spacetensor.c
PetscSpaceEvaluate_WXY() in src/dm/dt/space/impls/wxy/spacewxy.c
Index of all SPACE routines
Table of Contents for all manual pages
Index of all manual pages