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

Wed Nov 14 10:35:23 EST 2012

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
> 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> 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
>>
>>    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
>>    blockedhttps://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> 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>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 <%2B39%20011%208101907>
>>>> fax  +39 011 8101930 <%2B39%20011%208101930>
>>>>
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>>>
>>>
>>
>>
>> --
>> Claudio Zanni
>> INAF - Osservatorio Astronomico di Torino
>> Via Osservatorio 20
>> 10025 Pino Torinese (TO), Italy
>> tel. +39 011 8101907
>> fax  +39 011 8101930
>>
>>
>> _______________________________________________
>> Powered by 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
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