[CIG-SHORT] Cell centroids

[Matthew Knepley]

On Sat, Sep 8, 2012 at 9:29 PM, Birendra jha <bjha7333 at yahoo.com> wrote:

> Hi
>
> Does anyone know if it is possible to compute and output cell centroid
> coordinates from CUBIT?
>
> If not in CUBIT, is there some other tool (c++ code etc.) for this?
>
> I need it for unstructured hexahedral grid. From google I found:
> http://www.cs.berkeley.edu/~jfc/mirtich/massProps.html
> which I tried to use but I don't understand why it does not work for
> general hexahedron.
>

The way that makes sense in PyLith is to take the middle point in the
reference element,
(0.0,0.0,0.0) I believe, and transform it using the FE Jacobian inverse for
that point. We
have these routines since they are used for point location.

   Matt


> Thanks a lot
> Birendra
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-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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