I'm doing something along the lines of:

create an initial image with imshow
add a colorbar
update the image using the image's set_data method

Occassionally, the extents of the image will change. How do I handle that? The 
only place I can find to set the extents is in the call to imshow. The 
resulting image has a get_extents, but not a setter. I can't make repeated 
calls to imshow, because the new image isnt coupled to the colorbar. I can't 
figure out how to couple the colorbar to the new image, and I dont know how 
to get rid of the old colorbar to clear space for a new one.

Can someone offer some advice?

Also, does aspect='equal' work with the object oriented interface?

Thanks,
Darren


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