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

[Dominik Szczerba]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.4-svn0 (GNU/Linux)
Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org

iD8DBQFJBxhF/EBMh9bUuzIRAlm4AJ4lTjr0wP2LRDsKPJWW4zKRLEsgUQCgyzg0
eaxDrLYyceyqhqjfPqCBShs=
=6jSF
-----END PGP SIGNATURE-----