[vtkusers] flatten a multiblock dataset

[Burlen Loring]

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