[vtk-developers] Pentagonal prism bug resolved!

[Berk Geveci]

You rock Bill.

On Mon, Jun 15, 2015 at 1:31 PM, Bill Lorensen <bill.lorensen at gmail.com>
wrote:

> Folks,
>
> I reported recently of issues with the shape functions and derivatives
> for the pentagonal prism. Since I could not find any references for
> the current implementation I used the formulation in this paper:
> http://dilbert.engr.ucdavis.edu/~suku/nem/papers/polyelas.pdf
> Since this paper did not have the shape function derivatives, I used
> SymPy ( http://www.sympy.org/en/index.html ) to compute the
> derivatives.
>
> I'm happy to report that the new formulation does a great job and
> passes the new unit test I created for cells.
>
> I have not submitted a patch yet since I want the code to document the
> process. I wrote c++ code and SymPy code to generate the statements
> for the new formulation.
>
> I wanted to give a heads up in case someone else is looking into this.
>
> Bill
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