[Paraview] image data extents are not displayed in Information tab

[Michael Jackson]

At the top of RequestData() method how are you getting the output  
object? Maybe that has something to do with it?

You can take a look at my code <http://echo1.bluequartz.net/viewvc/CTMD/PVPhaseField/src/Readers/vtkH5PhaseFieldReader.cpp?view=markup 
 > and compare with your own.

_________________________________________________________
Mike Jackson                  mike.jackson at bluequartz.net
             www.bluequartz.net

On Oct 28, 2008, at 9:48 AM, Dominik Szczerba wrote:

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> Thanks Mike,
>
> Yeah, no doubt I am doing something wrong, but am clueless. At the end
> of RequestData
>
> 	this->GetOutput()->GetExtent(extent);
>
> gets a valid extent. But PV does not see it (and screws up some  
> filters).
>
> Dominik
>
> Michael Jackson wrote:
>>
>> _________________________________________________________
>> Mike Jackson                  mike.jackson at bluequartz.net
>> BlueQuartz Software                    www.bluequartz.net
>> Principal Software Engineer                  Dayton, Ohio
>>
>>
>>
>> On Oct 28, 2008, at 8:17 AM, Dominik Szczerba wrote:
>>
>> As I do. Please, can you check if you see both extents and bounds in
>> Information?
>>
>> Dominik
>>
>> Michael Jackson wrote:
>>>>> vtkImageAlgorithm
>>>>>
>>>>> _________________________________________________________
>>>>> Mike Jackson                  mike.jackson at bluequartz.net
>>>>> BlueQuartz Software                    www.bluequartz.net
>>>>> Principal Software Engineer                  Dayton, Ohio
>>>>>
>>>>>
>>>>>
>>>>> On Oct 28, 2008, at 5:31 AM, Dominik Szczerba wrote:
>>>>>
>>>>> One more question: where do you derive your reader from (maybe the
>>>>> parent class sets something for you)?
>>>>>
>>>>> Dominik
>>>>>
>>>>> Dominik Szczerba wrote:
>>>>>>>> Thanks Mike, but this is exactly what I have.
>>>>>>>> Are you sure you see both bounds and extents in Information?
>>>>>>>>
>>>>>>>> Dominik
>>>>>>>>
>>>>>>>> Michael Jackson wrote:
>>>>>>>>> Not sure if it is any help but here is a code snippet from  
>>>>>>>>> my own
>>>>>>>>> HDF5
>>>>>>>>> image reader code:
>>>>>>>>
>>>>>>>>> outInfo->Set( vtkDataObject::ORIGIN(), DataOrigin, 3 );
>>>>>>>>> outInfo->Set( vtkDataObject::SPACING(), DataSpacing, 3 );
>>>>>>>>> this->DataExtent[0] = this->DataExtent[2] = this- 
>>>>>>>>> >DataExtent[4] = 0;
>>>>>>>>> this->DataExtent[1] = xDim-1;
>>>>>>>>> this->DataExtent[3] = yDim-1;
>>>>>>>>> this->DataExtent[5] = zDim-1;
>>>>>>>>> outInfo- 
>>>>>>>>> >Set( vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),
>>>>>>>>> DataExtent, 6 );
>>>>>>>>> outInfo- 
>>>>>>>>> >Set( vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(),
>>>>>>>>> DataExtent, 6 );
>>>>>>>>
>>>>>>>>
>>>>>>>>> _________________________________________________________
>>>>>>>>> Mike Jackson                  mike.jackson at bluequartz.net
>>>>>>>>> BlueQuartz Software                    www.bluequartz.net
>>>>>>>>> Principal Software Engineer                  Dayton, Ohio
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>> On Oct 27, 2008, at 7:55 PM, Dominik Szczerba wrote:
>>>>>>>>
>>>>>>>>> What else then WHOLE_EXTENT, UPDATE_EXTENT and SetExtent and  
>>>>>>>>> do I
>>>>>>>>> have
>>>>>>>>> to fill in RequestInformation/RequestData of my plugin reader
>>>>>>>>> (derived
>>>>>>>>> from vtkImageAlgorithm) in order for Paraview to see the  
>>>>>>>>> dataset's
>>>>>>>>> extents? Only bounds are displayed in the Information tab,  
>>>>>>>>> while for
>>>>>>>>> native file formats there is also extents. But when I save the
>>>>>>>>> file in
>>>>>>>>> legacy format for a test the extent is written correctly, so  
>>>>>>>>> it WAS
>>>>>>>>> known to Paraview, only not displayed properly. What is wrong?
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> ParaView mailing list
>>>>>>>> ParaView at paraview.org
>>>>>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>>>>>
>>>>>
>>
>
> - --
> Dominik Szczerba, Ph.D.
> Computational Physics Group
> Foundation for Research
> on Information Technologies in Society
> http://www.itis.ethz.ch
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