[Paraview] Time Source for Data Arrays

[Daniel Frisch]

Hi Christopher,

I was looking for a general filter that can turn a series of variables
named in a consecutive manner into one time dependent variable.

Thank you very much for your reply. I now think about using Ensight Gold
or XDMF as data format which is more modern and appropriate than VTK.

Best regards
Daniel

2017-01-23 22:24 GMT+01:00 Christopher Neal <chrisneal at snumerics.com>:

> Hi Daniel,
>
> The datasets that you describe are what most computational physics
> datasets are like. The geometry remains fixed while the scalars on the
> geometry change with time. The Ensight Gold format is one that I use often.
> It has very nice support for time series data where there is just one
> geometry file with a set of changing scalars on the geometry.
>
> http://www-vis.lbl.gov/NERSC/Software/ensight/doc/OnlineHelp/UM-C11.pdf
>
> I'm not sure exactly what you are asking for in your original question. Do
> you want the Kitware guys to write a filter that can read some sort of
> simulation data formatted in a specific way into Paraview? They would need
> more information about the format that you are using i.e. how is the data
> structured, etc.
>
> Hope this helps,
>
> On Mon, Jan 23, 2017 at 1:31 PM, Daniel Frisch <
> daniel.frisch.kit at gmail.com> wrote:
>
>> Hello,
>>
>> in Biomedical Engineering we often work with large datasets where the
>> geometry doesn't change over time but the scalar values change. Therefore
>> we use to save the data as single geometry with many variables (data
>> arrays) that are named according to the time index.
>>
>> It would be very convenient if ParaView could recognize these data arrays
>> as time index again. I am looking for the following filter:
>>
>> INPUT
>> - Dataset with
>>     - one geometry
>>     - some individual variables (p.ex. material class)
>>     - and thousands of variables / scalar data arrays with consecutive
>> names like
>>          - fwd_calc_0000.000000
>>          - fwd_calc_0000.001000
>>          - fwd_calc_0000.002000
>>          - fwd_calc_0000.003000
>> - Regular expression that matches the wanted data arrays and extracts the
>> numeric time value
>>
>> OUTPUT
>> - Dataset with
>>      - geometry
>>      - the individual variables
>>      - Time dependence according to the variables that are named fitting
>> for the regex
>>
>> The filter itself must be possible: TimeSource creates time index data
>> out of nothing.
>> I learned about vtkFileSeriesReader, but I don't want to save each
>> timestep into a separate VTK file with its own geometry since the geometry
>> stays the same.
>> Such a filter would be very useful to many of us and has been awaited for
>> a long time.
>>
>> Best regards
>> Daniel Frisch
>> Institut für Biomedizinische Messtechnik
>> Karlsruher Institut für Technologie
>>
>>
>>
>>
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>
>
> --
> Christopher Neal
> Research Engineer
> Streamline Numerics, Inc.
>
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