[Paraview] FFT of Selection over Time

[Moreland, Kenneth]

There is an internal filter that takes a vtkTable and runs the FFT on all the columns of the table.  There is also a filter that takes a vtkImage and runs the FFT.  They are not exposed in the GUI, but it is pretty easy to do so if it helps.

Incidentally, I'm pretty sure that the Ensight Gold format supports fields that change over time.  Identifying temporal data in the source file is really the "right" thing to do.

-Ken


On 6/23/09 10:49 AM, "Adriano Gagliardi" <agagliardi at ara.co.uk> wrote:

Thanks for the quick reply, Ken.

I forgot to mention that the data I am working with is in Ensight Gold format and the time step values are not stored within the file. What I would like to do is be able to create an array containing these values that the FFT filter can access once I have read in my list of files into Paraview. Is this possible? Or do the time step values have to be defined explicitly in the data file?

In the meantime, I'm going to take a look at the Exodus Reader to get a better idea of how the time step values are assigned.
===================================

Adriano Gagliardi MEng PhD
Project Scientist
Computational Aerodynamics
Aircraft Research Association Ltd.
Manton Lane
Bedford

Tel: 01234 32 4644
E-mail: agagliardi at ara.co.uk
Url: www.ara.co.uk



________________________________
From: Moreland, Kenneth [mailto:kmorel at sandia.gov]
Sent: 22 June 2009 15:34
To: agagliardi at ara.co.uk; paraview at paraview.org
Subject: Re: [Paraview] FFT of Selection over Time

This filter works basically the same as the Plot Selection Over Time filter.  Load in a data set with time (you know, where when you hit play you see it animate).  Select something, then apply the FFT Over Time filter.

-Ken


On 6/22/09 3:44 AM, "Adriano Gagliardi" <agagliardi at ara.co.uk> wrote:

I am interested in evaluating the FFT filter that now  comes with Paraview.
However, I'm unsure how to pass the time data to it  and I've been unable to
find its source files. Can anyone point me in the  right  direction?

Regards,

Adriano

===================================

Adriano  Gagliardi MEng PhD
Project Scientist
Computational  Aerodynamics
Aircraft Research Association  Ltd.


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   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
    ***      web:   http://www.cs.unm.edu/~kmorel


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This email contains information that is private and confidential and is intended only for the addressee.  If you are not the intended recipient please delete it and notify us immediately by e-mailing the sender.

Note: All email sent to or from this address may be accessed by someone other than the recipient, for system management and security reasons.

Aircraft Research Association Ltd.  Registered in England, Registration No 503668 Registered Office: Manton Lane, Bedford MK41 7PF England VAT No GB 196351245







   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
    ***      web:   http://www.cs.unm.edu/~kmorel

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