[vtkusers] flatten a multiblock dataset

[Michael Jackson]

Dominik,
   I had a project that did something similar earlier this year. We  
had a bunch of "Tiled" images in an HDF5 file that we combined into a  
single vtkImageData object as we read them from the HDF5 file. If you  
are interested let me know and I will send a link to the code.

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

On Oct 28, 2008, at 10:51 AM, Burlen Loring wrote:

> As far as I know there is no silver bullet.
>
> You could make one large image data (this is your flat dataset) with  
> extents large enough to enclose all leaves of your source multi  
> block then walk the source multiblock's tree copying data from each  
> leaf into the correct region of the flat dataset. Because you have  
> overlapping regions you'll have to make the right choices about  
> which regions of which blocks are copied. I don't know if this is  
> the best way, just an idea.
>
> vtkHierarchicalBoxDataSet could be used to visualize overlapping  
> image data without copying it around. It can blank out regions that  
> are covered.
>
>
> Dominik Szczerba wrote:
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>> What would be the best way to flatten a multiblock (overlapping,
>> different extents) dataset? (something like append filter, but for  
>> image
>> data). I did not find any appropriate subclass of
>> vtkMultiblockDataAlgorithm.
>>
>> AND/OR
>>
>> Can a (overlapping/different extents) vtkMultiblockDataSet return a  
>> full
>> (flat) arbitrary extent of interest?
>>
>> Thanks,
>> Dominik
>>
>> - --
>> Dominik Szczerba, Ph.D.
>> Computational Physics Group
>> Foundation for Research
>> on Information Technologies in Society
>> http://www.itis.ethz.ch
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>
>
> -- 
> Burlen Loring
> Kitware, Inc.
> R&D Engineer
> 28 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-371-3971 x137
>
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