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

[Michael Jackson]

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_________________________________________________________
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:

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> 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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