[vtkusers] Bug or feature: incomplete table returned by vtkDataObjectToTable for arrays of varying length

[Grothausmann, Roman Dr.]

I figured out, that it is possible to force a complete output by setting 
NumberOfTuples to the maximum found but the output then is only correct for 
those arrays who already had this length:
https://github.com/romangrothausmann/VTK-CLIs/commit/51bbe0f03734507d62743e5ee56ad57003573372

Instead of solving this issue I resorted to a specific vtpFD2csv:
https://github.com/romangrothausmann/VTK-CLIs/blob/master/vtpFD2csv.cxx

On 14/06/16 08:34, Grothausmann, Roman Dr. wrote:
> Before I start to write my own CSV export, iterating over each array
> individually, I'm wondering whether the incomplete table returned by
> vtkDataObjectToTable for arrays of varying length is intended?
>
> On 11/06/16 11:00, Grothausmann, Roman Dr. wrote:
>> Dear mailing list members,
>>
>>
>> I'm trying to export vtp-FieldData with arrays of varying length (as in the
>> attached VTP) to CSV:
>> https://github.com/romangrothausmann/VTK-CLIs/blob/master/vtp2csv.cxx
>>
>> However, it seems the vtkTable returned by vtkDataObjectToTable only holds as
>> many rows as the first encountered array has. I had a look at
>> vtkDataSetAttributes.cxx and vtkFieldData.cxx but their ShallowCopy do not use
>> an iterator whose length I could set.
>> How can I export as many rows as the longest array holds, as e.g. Paraview's
>> CSV-exporter does?
>>
>> Any help or hints are very much appreciated
>> Roman
>>
>>
>>
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>

-- 
Dr. Roman Grothausmann

Tomographie und Digitale Bildverarbeitung
Tomography and Digital Image Analysis

Institut für Funktionelle und Angewandte Anatomie, OE 4120
Medizinische Hochschule Hannover
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