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

[Dominik Szczerba]

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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?
> 
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> 

- --
Dominik Szczerba, Ph.D.
Computational Physics Group
Foundation for Research
on Information Technologies in Society
http://www.itis.ethz.ch
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