[vtkusers] unstructured grid + tetrahedrons

[Dominik Szczerba]

Unfortunately, I will not have a possibility to write those examples 
this time. A few quick comments follow below.

David Doria wrote:
> On Thu, Dec 10, 2009 at 8:52 AM, Baliki B. <balikivtk at gmail.com> wrote:
>> Could you explain (with some code) a little bit more?
>>
>>
>> 2009/12/10 Dominik Szczerba <dominik at itis.ethz.ch>
>>> You can see your tets in multiple ways:
>>>
>>> - extract cells by region

There is a filter (vtkExtractGeometry) to extract parts of a volume mesh 
NOT cutting the cells. Resulting is a polydata of course, but you see 
the inside cells otherwise hidden. Combined with an interactive widget 
(e.g. vtkBoxWidget) and edge visibility it gives a very good view.

>>> - cell shrinking

You can shrink all the cells by a factor (vtkShrinkFilter). This will 
result in a polydata again, but you will see the separate cells (by 
their 4 shrinked triangles).

>>>
>>> To see the associated data:
>>> - volume rendering

see vtkVolume

>>> - cut slices

see vtkCutter

>>> - clip

see vtkClipDataSet

>>> - contouring

see vtkContourFilter

Dominik

>>>
>>> Dominik
>>>
>>
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> 
> It's sounding like this may call for a couple of examples...
> 
> Thanks,
> 
> Captain Example
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