[Paraview-developers] Missing vtkTemporalDataSet class in ParaView 3.98.0

[Yuanxin Liu]

Hi,
  We will not continue to support it.  In fact, the current development
branch does not have the class anymore.

  Yes, you can use vtkMultiTimeStepAlgorithm if you do not want to manually
loop over all the time steps to construct a composite data set.

  You should replace vtkTemporalDataSet by vtkMultiBlockDataSet.  Replacing
calls to vtkTemporalDataSet by calls to vtkMultiBlockDataSet should be
fairly straightforward. You can look at the old vtkTemporalDataSet.h to see
what to do.  For example,
-   data->GetTimeStep(timeStep)  can be replaced
by  data->GetChild(timestep);
-   data->GetMetaData(timestep) can be replaced by
 data->GetChildMetaData(timestep);

Leo



On Thu, Jan 10, 2013 at 4:02 PM, Sunrise <helios.corona at gmail.com> wrote:

>  Thanks for the quick reply, Leo.
>
> I prefer to have a class that acts like a container of data frames. I
> already use the keys that you have mentioned for looping over pipeline, in
> order to do operations "on temporal data set". I mean, the TemporalDataSets
> are sending back and forth over pipeline. Having a class (like
> vtktemporalDataSet) that acts like "container" of data would be much easier
> to avoid nested loops in my case.
>
> Do you have any suggestion for a data container class such as alternative
> to vtkTemporalDataSet class? Is deriving from vtkMultiTimeStepAlgorithm
> suitable to create such container class?
>
> Next, I see vtkTemporalDataSet is still in vtk. Does it mean vtk (well not
> ParaView) continue to support it?
>
> Again, Thanks.
>
>
> On 01/09/2013 08:50 PM, Yuanxin Liu wrote:
>
> Hi,
>   This is because vtkTemporalDataSet is no longer supported.  The details
> of the change can be seen here:
> http://www.vtk.org/Wiki/VTK/Remove_vtkTemporalDataSet.    In short, the
> executives now only support updating single time steps; if a filter needs
> to use multiple time step data, it needs to use the key
> vtkStreamingDemandPipeline::CONTINUE_EXECUTION() to loop over those time
> steps.
>
>    If your filter works only on single time steps, then the change should
> be fairly straightforward.  Try:
>  - Inherit from vtkDataObjectAlgorithm instead of
> vtkTemporalDataSetAlgorithm
>   - replace the key UPDATE_TIME_STEPS() by UPDATE_TIME_STEP()
>  - replace the key DATA_TIME_STEPS() by DATA_TIME_STEP()
>
>    The compiler would then hopefully guide you to resolve the rest of the
> errors.  Let me know if you have trouble.  Also please feel free to post
> your code.
>
>  Leo
>
>
>
>
>
>
>
>
>
>
>
>
> On Wed, Jan 9, 2013 at 9:00 PM, Sunrise <helios.corona at gmail.com> wrote:
>
>> Hello everyone,
>>
>> I am compiling ParaView developement in order to develop a ParaView
>> plugin. Some of my classes are inherited from vtkTemporalDataSetAlgorithm.
>> In previous version(s) of ParaView source code (i.e. <= 3.14.1) I could use
>> vtkTemporalDataSetAlgorithm and I everything was fine.
>>
>> Recently I tried to use newer version of ParaView source (version 3.98.0)
>> and some vtk files are missed, such as:
>>
>> .../Filtering/vtkTemporalDataSetAlgorithm.cxx
>> .../Filtering/vtkTemporalDataSet.cxx
>> .../Filtering/vtkTemporalDataSetAlgorithm.h
>> .../Filtering/vtkTemporalDataSet.h
>>
>> How can I use vtkTemporalDataSet* in recent ParaView?
>>
>> Thanks.
>> _______________________________________________
>> Paraview-developers mailing list
>> Paraview-developers at paraview.org
>> http://public.kitware.com/mailman/listinfo/paraview-developers
>>
>
>
>
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