[petsc-users] Questions about PetscTabulation for finite element basis, and PetscViewerVTK for saving cell data

[Gong Yujie]

Dear PETSc developers,

I have a code that uses PETSc to solve the elasticity problem with the finite element discretization written by myself.  I found there is a part called "PetscTabulation" that stores the basis functions. I would like to inquire about this part that can I use this part for achieving high order element? In detail, how does the basis functions be evaluated and in which file can I find the basis functions? I'm thinking about using PetscTabulation and PetscQuadrature to achieve a high order element. Is this doable?

The next question is can I output a vector that the unknown is defined on each element (not point) using VecView? I think this question relates to the PetscViewer for VTK.

Thanks in advance for your help!

Best Regards,
Jerry
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