[vtkusers] Moving an ImageData

[David Gobbi]

Hi David,

You can also reposition an image with my vtkImageChangeInformation
filter.  It is specifically made for changing the Origin or Spacing of
an image.  It even has an option to automatically center the image.

I wrote this filter for two reasons: 1) to "fix" images when the image
reader made a mistake or when the original image had a bad header, and
2) to center images for quick-and-dirty visualization tasks.

   David