[Insight-users] Genus

[alex gouaillard]

hi eleni,

the genus of a mesh, or of it's dual, is the same.

If you use a QuadEdgeMesh, note that you have the primal *and* dual  
mesh connectivity stored in the surface. You have only one geometry  
though (up to you to decide if it is the primal or dual, as it's  
reversible, it's up to the user to decide which one is the primal and  
which one is the dual.)

Again, if you use a QuadEdgeMEsh (which I recommend if you;re going to  
work with surfaces and want to handle topology nicely), you can take a  
look at the itkQuadEdgeMeshTopologyChecker class, and specifically the  
ValidateEulerCharacteristic() method.
http://www.itk.org/Doxygen/html/classitk_1_1QuadEdgeMeshTopologyChecker.html
the doxygen documentation is not great (our bad), but the .txx is  
documented.

BTW is everything alright with Chan & Vesse ? I think kishore solved  
most of the problems, right?

let me know if that helps.

alex.


On Jun 21, 2009, at 4:14 PM, Sgouritsa, Eleni wrote:

> Hello,
> is there an itk class to use that gives me the genus of a volume (or  
> its dual mesh)?
>
> Regards,
> Eleni
>
> <ATT00001.txt>

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