[MOAB-dev] Quad4 nodes order

[Tim Tautges (ANL)]

While there are ways to modify the internal connectivity arrays (Interface::set_connectivity, or going through direct 
access to connectivity arrays using Interface::connect_iterate), I wouldn't recommend this approach, as it would affect 
the adjacency functions, which internally rely on canonical ordering in many cases.  Instead, I'd rely on a static 
permutation vector, which permutes a given MOAB-ordered vector into your preferred ordering.  If this vector is static, 
I'm guessing most optimizers will even optimize out the extra indirection.

- tim

On 02/10/2014 02:38 PM, kanaev at ibrae.ac.ru wrote:
> Hello MOAB-dev,
>
> Having unstructured hex mesh, can i renumber nodes order in Quad4 connectivity table so that every two opposite faces in
> hex have the same normal direction (one point inside the hex, another one points out)?
>
> Thanks
>
> Anton
>

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              Tim Tautges            Argonne National Laboratory
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