[Paraview] Problem with Pixie files: build 3.14.1 and 3.98.0

Claudio Zanni zanni at oato.inaf.it
Wed Nov 14 11:11:32 EST 2012


Hi Robert,

     nice! Thanks a lot!
     Claudio

On 11/14/12 4:35 PM, Robert Maynard wrote:
> Hi Claudio,
>
> I have correct Pixie reading in Paraview next.
>
>
> On Mon, Nov 12, 2012 at 10:43 AM, Robert Maynard 
> <robert.maynard at kitware.com <mailto:robert.maynard at kitware.com>> wrote:
>
>     Hi Claudio,
>
>     I will be looking at this issue and hope to have a fix in for the
>     next release candiate.
>
>
>     On Mon, Nov 12, 2012 at 6:06 AM, Claudio Zanni <zanni at oato.inaf.it
>     <mailto:zanni at oato.inaf.it>> wrote:
>
>         Dear Utkarsh,
>
>            thanks for trying to look into it.
>
>            These are some datasets distributed with VisIt to test the
>         Pixie output
>
>         blockedhttp://portal.nersc.gov/svn/visit/trunk/data/pixie_test_data.tar.gz
>         <http://portal.nersc.gov/svn/visit/trunk/data/pixie_test_data.tar.gz>
>
>            As you will notice Paraview 3.14 or newer can not open the
>         file pixie_expressions.h5,
>            while it correctly opens all other files (pixie3d3.h5,
>         ...), where the only difference
>            between the files is the number of timesteps contained in
>         each of them.
>
>            The following files are written by the code that we develop
>         (http://plutocode.ph.unito.it/):
>
>            blockedhttps://dl.dropbox.com/u/18683007/data.2tstep.h5
>         <http://dl.dropbox.com/u/18683007/data.2tstep.h5>
>            blockedhttps://dl.dropbox.com/u/18683007/data.1tstep.h5
>         <http://dl.dropbox.com/u/18683007/data.1tstep.h5>
>
>             Paraview 3.14 or newer can open data.2tstep.h5 but hangs
>         when trying to open data.1tstep.h5.
>             These files contain 2 and 1 timesteps respectively, but
>         their structure is exactly the same
>             (groups, attributes, datasets, etc etc ...)
>
>             Previous versions of Paraview (down to 3.10) and VisIt (up
>         to the current release 2.5.2) can
>             correctly open all the files. Therefore I suspect that the
>         problem is somewhere in the bridge
>             from VisIt to Paraview of the two most recent releases.
>             I have always used the pre-compiled binaries for Mac OS X
>         64-bit Intel.
>
>             Thanks again,
>             Claudio
>
>
>         On 11/12/12 12:13 AM, Utkarsh Ayachit wrote:
>>         Claudio,
>>
>>         Do you have any sample dataset that I can use to test
>>         this/the fix?
>>
>>         Thanks,
>>         Utkarsh
>>
>>
>>         On Sun, Nov 11, 2012 at 4:07 PM, Utkarsh Ayachit
>>         <utkarsh.ayachit at kitware.com
>>         <mailto:utkarsh.ayachit at kitware.com>> wrote:
>>
>>             Claudio,
>>
>>             I'll take a look at get back.
>>
>>             Utkarsh
>>
>>
>>             On Fri, Nov 9, 2012 at 9:54 AM, Claudio Zanni
>>             <zanni at oato.inaf.it <mailto:zanni at oato.inaf.it>> wrote:
>>
>>                 I already had this problem with Paraview 3.14.1 but I
>>                 received no answer to a first email,
>>                 so I tried to investigate on my own since the problem
>>                 is still present in release 3.98.0.
>>
>>                 Paraview can not open a Pixie file (it's a HDF5
>>                 format included through the VisIt Database
>>                 Bridge) when the file includes one timestep only:
>>                 Paraview just hangs indefinitely.
>>                 Everything works fine when multiple timesteps are
>>                 contained in the file.
>>
>>                 I suspect that the problem is connected to lines
>>                 618-634 in
>>                 Utilities/VisItBridge/AvtAlgorithms/vtkAvtFileFormatAlgorithm.cxx:
>>
>>                       //in some case the times and cycles have all
>>                     zero values.
>>                       //This is caused by a file reader that
>>                     generates the time value
>>                       //once the reader moves to that timestep.
>>                       //That kind of behaviour is not possible
>>                     currently in ParaView. Instead
>>                       //we will force the reader to generate the time
>>                     values for each timestep
>>                       //by cycling through everytime step but not
>>                     requesting any data.
>>                       if(hasTime && timesteps[0] ==
>>                     timesteps[timesteps.size()-1])
>>                         {
>>                         //we have hit a timestep range that needs to
>>                     be cycled
>>                         for(int i=0; i < timesteps.size();++i)
>>                           {
>>                     this->ActivateTimestep(i);
>>                           //Nek and other readers don't update the
>>                     time info intill you
>>                           //call gettimes.
>>                     this->AvtFile->FormatGetTimes(timesteps);
>>                           }
>>                         }
>>
>>                 The condition is true not only when the same value
>>                 (0?) has been assigned to all
>>                 the timesteps but also when there is one timestep
>>                 only (timesteps.size() = 1).
>>                 Besides these lines were not present in Paraview
>>                 3.10/3.12 and these releases
>>                 were able to open Pixie files containing one timestep
>>                 only.
>>
>>                 Is it possible to fix this problem? That would be
>>                 highly appreciated.
>>                 Regards,
>>                 Claudio
>>
>>                 -- 
>>                 Claudio Zanni
>>                 INAF - Osservatorio Astronomico di Torino
>>                 Via Osservatorio 20
>>                 10025 Pino Torinese (TO), Italy
>>                 tel. +39 011 8101907 <tel:%2B39%20011%208101907>
>>                 fax +39 011 8101930 <tel:%2B39%20011%208101930>
>>
>>                 _______________________________________________
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>>
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>>
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>>
>>
>
>
>         -- 
>         Claudio Zanni
>         INAF - Osservatorio Astronomico di Torino
>         Via Osservatorio 20
>         10025 Pino Torinese (TO), Italy
>         tel.+39 011 8101907  <tel:%2B39%20011%208101907>
>         fax+39 011 8101930  <tel:%2B39%20011%208101930>  
>
>
>         _______________________________________________
>         Powered by www.kitware.com <http://www.kitware.com>
>
>         Visit other Kitware open-source projects at
>         http://www.kitware.com/opensource/opensource.html
>
>         Please keep messages on-topic and check the ParaView Wiki at:
>         http://paraview.org/Wiki/ParaView
>
>         Follow this link to subscribe/unsubscribe:
>         http://www.paraview.org/mailman/listinfo/paraview
>
>
>
>
>     -- 
>     Robert Maynard
>
>
>
>
> -- 
> Robert Maynard


-- 
Claudio Zanni
INAF - Osservatorio Astronomico di Torino
Via Osservatorio 20
10025 Pino Torinese (TO), Italy
tel. +39 011 8101907
fax  +39 011 8101930

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