PetscDSGetTabulation#

Return the basis tabulation at quadrature points for the volume discretization

Synopsis#

#include "petscds.h" 
PetscErrorCode PetscDSGetTabulation(PetscDS prob, PetscTabulation *T[]) PeNS

Not Collective

T - The basis function and derivatives tabulation at quadrature points for each field, see PetscTabulation for its details

The tabulation is only valid so long as the PetscDS has not be destroyed. There is no PetscDSRestoreTabulation() in C.

Use the declaration

  PetscTabulation, pointer :: tab(:)

and access the values using, for example,

  tab(i)%ptr%K
  tab(i)%ptr%T(j)%ptr

where \( i = 1, 2, ..., Nf \) and \( j = 1, 2, ..., tab(i)%ptr%K+1 \).

Use PetscDSRestoreTabulation() to restore the array

The Fortran language syntax does not directly support arrays of pointers, the ‘%ptr’ notation allows mimicking their use in Fortran.

intermediate