[vtkusers] vtkImageData for non-contiguous memory

[David Gobbi]

You can try using vtkImageDataStreamer to pull the data through the pipeline
in smaller chunks.  For example, you can place vtkImageDataStreamer right
after vtkImageReslice in your pipeline.

If you are going to write the data to disk, ideally you should write each slice
to a separate file.  In other words, run the writer in a for loop where you keep
on advancing it to the next slice, setting the filename for that slice, and then
calling Write().

 - David


On Fri, Jun 24, 2011 at 4:45 PM, Aaron Boxer <boxerab at gmail.com> wrote:
> Hello!
>
> I am using vtkImageData and vtkImageReslice
> to calculate multip-planar reformatting on stacks
> of CT images. I  need to run
> this on a 32 bit system, so it is hard to get large contiguous
> blocks of memory.
>
> Is it possible for vtkImageData to reference a sequence of 2D memory
> buffers, where the sequence is not contiguous in memory?
> This would allow me to re-slice larger stacks.
>
> Thanks!
>
> Aaron