[Paraview] Saving PlotSelectionOverTime result to CSV file in script

[Peter Maday]

Thanks for the reply!

I have tried this setup, however I could not find a filter that would
produce the correct output with the CreateWriter. When using the
PlotVariablesOverTime it does not work, as it produces a
vtkMultiBlockDataset as opposed to a vtkTable that is required by the CSV
writer.

The solution I have found was to use a programmable filter in a similar
setup (with the appropriate selection of the block and column indices):

progFilter=ProgrammableFilter()
progFilter.OutputDataSetType='vtkTable'
progFilter.PythonPath = ''
progFilter.RequestInformationScript = ''
#progFilter.RequestUpdateExtentScript= ''
progFilter.Script = "\
dataTable=self.GetInput().GetBlock(0).GetColumn(0)\n\
output=self.GetTableOutput()\n\
output.AddColumn(dataTable)\n\
"

I believe it is worth mentioning that it is possible to put the debugger
breakpoints (pdb.set_trace()) in the progFilter.Script string and this way
to figure out what exactly the input of the filter is like.



2013/10/4 David E DeMarle <dave.demarle at kitware.com>

> Try Using CreateWriter() like so:
> writer = CreateWriter(".../foo.csv", source)
> writer.FieldAssociation = "Points" # or "Cells"
> writer.UpdatePipeline()
> del writer
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
>
> On Fri, Oct 4, 2013 at 10:18 AM, Peter Maday <madapeti at gmail.com> wrote:
>
>> Dear All,
>>
>> I would like to automate a process that involves saving the output of a
>> PlotSelectionOverTime filter to a CSV file. Manually it is done by invoking
>> the "Save data " command from the File menu while the graph view is
>> selected.
>>
>> When I try to record the trace for this step, it does not contain the CSV
>> save part.
>>
>> My question is how to save the PlotSelectionOverTime output to a text
>> file in a script.
>>
>> Thansk a lot!
>>
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