[Paraview] extract voriticy and follow it in time

[Andy Bauer]

Hi Ufuk,

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.

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.

Best,
Andy

On Fri, Apr 20, 2018 at 4:40 PM, Ufuk Turuncoglu <
u.utku.turuncoglu at be.itu.edu.tr> wrote:

> 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!
>
> Regards,
>
> --ufuk
>
> ----- Original Message -----
> From: "Ufuk Utku Turuncoglu (BE)" <u.utku.turuncoglu at be.itu.edu.tr>
> To: "paraview" <paraview at paraview.org>
> Sent: Friday, April 20, 2018 3:09:35 PM
> Subject: [Paraview] extract voriticy and follow it in time
>
> Hi,
>
> I would like to use Threshold filter for Vorticity field calculated by
> ComputeDreivatives but in the variables list i could not see Vorticity
> field. So, is it possible to do it with any other way such as
> programmable filter etc. If i extract it from the whole data, then, i
> would like to follow it to create polyline that represent path of the
> selected region. So, is there any simple way to do that?
>
> Best Regards,
>
> --ufuk
>
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