[Paraview-developers] The Threshold filter

[David Thompson]

Hi all,

> Another roundabout way is to first use the array calculator to get the absolute value or square of the field, then use the threshold filter to extract all values that are some epsilon more than 0 or greater.

Yet another roundabout way (assuming PV 3.98+ built with Python) is to use the "Find Data" dialog to select the cells with nonzero values and then apply the "Extract Selection" filter.

	David

> From: Andy Bauer <andy.bauer at kitware.com>
> Date: Friday, February 1, 2013 1:10 PM
> To: Alejandro RIBES <alejandro.ribes at edf.fr>
> Cc: "paraview-developers at paraview.org" <paraview-developers at paraview.org>, "paraview-developers-bounces at paraview.org" <paraview-developers-bounces at paraview.org>
> Subject: [EXTERNAL] Re: [Paraview-developers] The Threshold filter
> 
>> Hi,
>> 
>> A slightly round-about way to do this is to apply 2 threshold filters and then use the append data sets filter to put them back together.
>> 
>> Andy
>> 
>> On Fri, Feb 1, 2013 at 12:56 PM, Alejandro RIBES <alejandro.ribes at edf.fr> wrote:
>>> 
>>> Hi, 
>>> 
>>> Using ParaView I am trying to exclude all the zero elements in a scalar field. I tried with the Threshold filter and realized that I can select either less than zero or bigger than zero with the current sliders. I can also select zero but not the complement that is what I want. Is that an easy way to do that ? If not, can we add a "exclude" or "complement" box that will change the behavior of the filter ?
>>> 
>>> Cheers, 
>>> 
>>> Alejandro. 
>>> 
>>> 
>>> 
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