[vtkusers] problems with GetCellNeighbors

[Dominik Szczerba]

I just confirmed using picking, yes, i am picking two tets and they have
3 point Ids in common...

Is it at all the right way of using GetCellNeighbors? What is the Cell
here: a tet or it's face (triangle)?

Dominik

John Biddiscombe wrote:
> Are the points shared between cells? Duplicated edges won't appear as
> shared ones
> 
> ?
> 
> JB
> 
> 
> Dominik Szczerba wrote:
> 
>> I did, no effect :(
>> Dominik
>>
>> John Biddiscombe wrote:
>>
>>> Do you have to call BuildLinks first?
>>>
>>> Can't remember...
>>>
>>> JB
>>>
>>>
>>> Dominik Szczerba wrote:
>>>
>>>> Hi,
>>>>
>>>> The following code retrieves cell points, but not cell neighbours, what
>>>> is wrong?
>>>>
>>>>   vtkUnstructuredGrid* grid;
>>>>   //...
>>>>   for(int id=0; id<NCELLS; id++){
>>>>      vtkIdList* points = vtkIdList::New();
>>>>      vtkIdList* cells = vtkIdList::New();
>>>>      grid->GetCellPoints(id,points);
>>>>      grid->GetCellNeighbors(id,points,cells);
>>>>      int np = points->GetNumberOfIds();
>>>>      int nc = cells->GetNumberOfIds();
>>>>      cerr << nc << endl;// always 0
>>>>      points->Delete();
>>>>      cells->Delete();
>>>>   }
>>>>
>>>> thanks,
>>>> Dominik
>>>>
>>>
>>
> 
> 

-- 
Dominik Szczerba, Dr.
Computer Vision Lab CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi