On Jun 13, 2012, at 3:16 PM, Hillary Ryan wrote: > I have a bunch (two dozen) of little objects that I would like to be able to > draw on one canvas. At the moment I am passing each object the drawing > context which comes from the canvas, letting the object draw itself and then > moving onto the next object. By this method, if one object changes I have to > redraw the entire canvas. I know in Java you can redraw only part of the > canvas. Is there a standard method in Racket for drawing a bunch of objects > on a canvas efficiently?
Yes if I understand your question correctly, but you have to go a little bit deeper in the GUI toolbox.
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