Hi,

I'm trying to create an application that, among other things, will allow 
me to view an image, zoom into it, and move it around. Essentially what 
I can do by using imshow and show in ipython. However, I've noticed that 
in both interactive usage and my  application the image comes up in a 
small set of axes that do not fill up the screen 100% (the image is 
rectangular). Zooming or dragging the image around then causes part of 
it to go off the axes, which is not desirable.

What I would like to do is increase the size of the area where the image 
can be displayed to the area given to the canvas in my application. 
Then, if I drag the image around, part of it won't disappear. However, 
I'm not really sure how to do this. What is the best way to accomplish 
this goal (preferably for non-interactive usage - I'm using the QT4 back 
end)?

Thank you in advance,
David Levitan


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