What about cropping, computing layer intersections etc? It would be ugly if high-level code had to add extra checks for those cases, especially when an empty image is an intermediate result in a longer sequence of operations.
/ Jonas Walldén
Previous text:
2004-08-09 13:14: Subject: Image.Image
Traditinally, the only way to get a 0xY or Xx0 sized image is because of a bug in scale().
I don't think anything will break if everything starts to protest for zero-sized images.
/ Mirar