<div dir="ltr"><div><div><div><div>Hi Ufuk,<br><br></div>The threshold filter operates on scalar/single component arrays only. Also, underneath the covers it operates on cell data exclusively so if you request thresholding on point data it will do a point data to cell data operation as well.<br><br></div>I'm not aware of any filters in PV that would allow you to track a thresholded quantity. Unfortunately I can't think of any moderately easy way to do this in PV either. <br><br></div>Best,<br></div>Andy<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Apr 20, 2018 at 4:40 PM, Ufuk Turuncoglu <span dir="ltr"><<a href="mailto:u.utku.turuncoglu@be.itu.edu.tr" target="_blank">u.utku.turuncoglu@be.itu.edu.tr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I could have vorticty as a new variable by using PythonCalculator. now, i need to follow points extracted from vorticity field in time and create poly line. so, I tried particle tracer and particle path bu no luck yet!<br>
<br>
Regards,<br>
<br>
--ufuk<br>
<div class="HOEnZb"><div class="h5"><br>
----- Original Message -----<br>
From: "Ufuk Utku Turuncoglu (BE)" <<a href="mailto:u.utku.turuncoglu@be.itu.edu.tr">u.utku.turuncoglu@be.itu.edu.<wbr>tr</a>><br>
To: "paraview" <<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
Sent: Friday, April 20, 2018 3:09:35 PM<br>
Subject: [Paraview] extract voriticy and follow it in time<br>
<br>
Hi,<br>
<br>
I would like to use Threshold filter for Vorticity field calculated by <br>
ComputeDreivatives but in the variables list i could not see Vorticity <br>
field. So, is it possible to do it with any other way such as <br>
programmable filter etc. If i extract it from the whole data, then, i <br>
would like to follow it to create polyline that represent path of the <br>
selected region. So, is there any simple way to do that?<br>
<br>
Best Regards,<br>
<br>
--ufuk<br>
<br>
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