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<TITLE>Re: [Paraview] FFT of Selection over Time</TITLE>
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<FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>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.<BR>
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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.<BR>
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-Ken<BR>
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On 6/23/09 10:49 AM, "Adriano Gagliardi" <<a href="agagliardi@ara.co.uk">agagliardi@ara.co.uk</a>> wrote:<BR>
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</SPAN></FONT><BLOCKQUOTE><SPAN STYLE='font-size:11pt'><FONT COLOR="#0000FF"><FONT FACE="Arial">Thanks for the quick reply, Ken.<BR>
</FONT></FONT><FONT FACE="Calibri, Verdana, Helvetica, Arial"> <BR>
</FONT><FONT COLOR="#0000FF"><FONT FACE="Arial">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?<BR>
</FONT></FONT><FONT FACE="Calibri, Verdana, Helvetica, Arial"> <BR>
</FONT><FONT COLOR="#0000FF"><FONT FACE="Arial">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.<BR>
</FONT></FONT><FONT FACE="Calibri, Verdana, Helvetica, Arial">===================================<BR>
<BR>
Adriano Gagliardi MEng PhD<BR>
Project Scientist<BR>
Computational Aerodynamics<BR>
Aircraft Research Association Ltd.<BR>
Manton Lane<BR>
Bedford<BR>
<BR>
Tel: 01234 32 4644<BR>
E-mail: <a href="agagliardi@ara.co.uk">agagliardi@ara.co.uk</a><BR>
Url: www.ara.co.uk <BR>
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<HR ALIGN=CENTER SIZE="3" WIDTH="100%"></FONT><FONT FACE="Tahoma, Verdana, Helvetica, Arial"><B>From:</B> Moreland, Kenneth [<a href="mailto:kmorel@sandia.gov">mailto:kmorel@sandia.gov</a>] <BR>
<B>Sent:</B> 22 June 2009 15:34<BR>
<B>To:</B> <a href="agagliardi@ara.co.uk">agagliardi@ara.co.uk</a>; <a href="paraview@paraview.org">paraview@paraview.org</a><BR>
<B>Subject:</B> Re: [Paraview] FFT of Selection over Time<BR>
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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.<BR>
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-Ken<BR>
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On 6/22/09 3:44 AM, "Adriano Gagliardi" <<a href="agagliardi@ara.co.uk">agagliardi@ara.co.uk</a>> wrote:<BR>
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</FONT></SPAN><BLOCKQUOTE><SPAN STYLE='font-size:11pt'><FONT FACE="Calibri, Verdana, Helvetica, Arial">I am interested in evaluating the FFT filter that now comes with Paraview.<BR>
However, I'm unsure how to pass the time data to it and I've been unable to<BR>
find its source files. Can anyone point me in the right direction?<BR>
<BR>
Regards,<BR>
<BR>
Adriano<BR>
<BR>
===================================<BR>
<BR>
Adriano Gagliardi MEng PhD<BR>
Project Scientist<BR>
Computational Aerodynamics<BR>
Aircraft Research Association Ltd.<BR>
<BR>
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*** Sandia National Laboratories<BR>
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