[Paraview-developers] The Threshold filter

[David Thompson]

Hi Alejandro,

I misspoke; you will need to use the development version of (i.e., the trunk or the ParaView 3.98.1 release candidate) to extract "Find Data": there is a fix in these newer versions for extracting selections based on attribute values.

	David

On Feb 4, 2013, at 12:58 PM, Alejandro RIBES <alejandro.ribes at edf.fr> wrote:

> 
> Hi, 
> 
> Thanks very much for your answers. I managed with two threshold filters + a "Group Dataset" ... and also with the trick of the SQRST field. I am now recompiling my ParaView 3.98 using python support to try with "Find Data". 
> 
> Thanks again for you help guys ! 
> 
> Alejandro. 
> 
> 
> 
> 
> david.thompson at kitware.com
> 01/02/2013 23:31
> 
> A
> kmorel at sandia.gov
> cc
> andy.bauer at kitware.com, alejandro.ribes at edf.fr, paraview-developers at paraview.org, paraview-developers-bounces at paraview.org
> Objet
> Re: [Paraview-developers] The Threshold filter
> 
> 
> 
> 
> 
> 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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