[IGSTK-Users] image origin problem

[??? ?]

Whenever i tested a CT image with IGSTK sample Needly Biopsy,  each CT image 
shown on IGSTK have a different origin.
that means , every image has a it's own origin. so each images are shown on 
different position.
I want to allign every images to be shown at same position on the view port.
Finding many methods on IGSTK(VTK,ITK), I tried many time to fix the 
problem.
But i couldn't make it.
Does anybody know how to change the origin of CT on the view?
please tell me~

I attached screen shoot...

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