[Paraview] Write and read a vtk file (in python)

[Utkarsh Ayachit]

There was a bug in OpenDataFile() that was fixed a few days ago (May
26) that is causing that "AttributeError: Attribute FileName does not
exist". Attached is a patch for the same.

Utkarsh

2010/6/4 Berk Geveci <berk.geveci at kitware.com>:
>> 1) reading :
>> ------------
>>
>> from a vtkStructuredGrid object, I use a vtkStructuredGridWriter to create a
>> vtk file, and I have the following problem :
>> when I launch the script in Paraview, the format of floating points is not
>> good (I obtain for example 33,1632 instead of 33.1632). So, the file created
>> is not readable by Paraview. If I launch the script directly in a terminal,
>> it works fine. Perhaps because the version of vtk module is not the same ?
>> If I use the binary format I have not this problem.
>
> This seems to be related to the way the LOCALE is set on your system. It is
> probably set to French in one case and English in the other. Does anybody know
> if we can force LOCALE to English in the ParaView application or the reader?
>
>> 2) writing :
>> ------------
>>
>>  I would like to read my vtk files from the python shell, with
>> OpenDataFile(), but It didn't succeed and I have the following message (with
>> a file which can be read in paraview using menu open of course :-) :
>
> Unless I am mistaken, you give the filename directly to OpenDataFile(),
> without FileName=.
>
> -berk
>
>>
>>
>> /home/plumecoq/tmp/ParaView/flow_1_0075.vtk
>> Traceback (most recent call last):
>>  File "<string>", line 1, in <module>
>>  File "/home/plumecoq/EHPOC/plugins/ElsaMenu/elsa.py", line 91, in <module>
>>    main()
>>  File "/home/plumecoq/EHPOC/plugins/ElsaMenu/elsa.py", line 73, in main
>>    reader_vtk = OpenDataFile(file_name_vtk)
>>  File
>> "/home/plumecoq/Paraview/ParaView-3.8.0-bin/Utilities/VTKPythonWrapping/paraview/simple.py",
>> line 115, in OpenDataFile
>>    reader = globals()[xml_name](FileName=filename, **extraArgs)
>>  File
>> "/home/plumecoq/Paraview/ParaView-3.8.0-bin/Utilities/VTKPythonWrapping/paraview/simple.py",
>> line 542, in CreateObject
>>    setattr(px, param, params[param])
>>  File
>> "/home/plumecoq/Paraview/ParaView-3.8.0-bin/Utilities/VTKPythonWrapping/paraview/servermanager.py",
>> line 201, in __setattr__
>>    "to add this attribute.")
>> AttributeError: Attribute FileName does not exist.  This class does not
>> allow addition of new attributes to avoid mistakes due to typos. Use
>> add_attribute() if you really want to add this attribute.
>>
>>
>> any ideas ? I try to use LegacyVTKFileReader instead, but I have also some
>> problems.
>>
>> I use a re-compile version of Paraview 3.8, under Linux (Fedora 10 - 64
>> bits)
>>
>> thanks for your help.
>>
>> Jérôme
>>
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>
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