[vtkusers] Fwd: problems with GetCellNeighbors

[David Doria]

On Thu, Jan 21, 2010 at 3:06 AM, Bill Chivas <noo134 at googlemail.com> wrote:

>
>  *GetCellNeighbors*   (  vtkIdType  *cellId*,    vtkIdList *  *ptIds*,
> vtkIdList *  *cellIds*   )
>
> 1) cellid is the cell i want its neighbors. As "cell" is a e.g. tetrahedron
> cell or one of its faces?
> 2) ptids are cell's points or one of its faces' points?
> 3) cellids are cells (e.g. neighboring tetrahedra) or faces (neighboring
> faces)?
>
> I'm a little confused!
>
>
> 2010/1/20 Dominik Szczerba <domi at vision.ee.ethz.ch>
>
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>> Yes, GetCellNeighbours is the way to go. AFAIR it expect cell FACE ids
>> and will return all cells containing all given points.
>>
>> Dominik
>>
>> Bill Chivas wrote:
>> > It is an old post (/Tue Jun 27 04:01:59 EDT 2006/).
>> > Is it correct?
>> > How can i get all neighbors (for cell NOT cell face)?
>> >
>> >>OK just for others in future - I figured it out.
>> >>It is nowhere clearlystated but GetCellNeighbours needs
>> >>cell face points and not cell points.
>> >>It returns cell face neighbours and not all neighbours.
>> >>Dominik
>>
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>
>
>
Bill C,

I am confused. You seem to have posted several off-list posts? Did you
figure this out? If so, please write what you found in the 1), 2), 3) type
manner that you did before and a little short paragraph explaining what to
expect and I'll add it to the documentation.

It is sad to see people struggling with problems like this :(

Thanks,

David
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