[vtkusers] I am searching a filter (kind of threshold)

Jérôme jerome.velut at gmail.com
Fri May 7 08:13:36 EDT 2010


Hi,
If you are working with vtkImageData, vtkImageThreshold is what you are looking
for. However, for polygonal/pointset/...data, I agree with David.

2010/5/7 David Doria <daviddoria+vtk at gmail.com>:
> On Fri, May 7, 2010 at 7:18 AM, Lodron, Gerald <Gerald.Lodron at joanneum.at>
> wrote:
>>
>> Hi
>>
>> Is there any filter which set all values smaller a threshold to a specific
>> value (e.g. all values smaller than zero to zero)
>>
>> Best regards
>>
>
> I don't think any filters will really change the values.  You can use this:
> http://www.vtk.org/Wiki/VTK/Examples/PolyData/ThresholdingPoints
> to get the IDs of the points that pass your threshold test and then set to
> the specific value yourself.
> Maybe someone has a better answer?
> Thanks,
>
> David
>
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