Brian Fisher wrote:
I don't know why rect was set up that way, but one good thing about the way right & bottom relate to width, is that right = left + width and bottom = top + height
It's useful for much the same reasons that Python's slice indexing convention is useful. For example, if you're filling two adjacent rectangles, you can make r2.left = r1.right and they will fit together properly. There's another way of thinking about this that you may find less confusing. Instead of labelling the pixels, think of the coordinates as labelling infinitely thin lines *between* the pixels. Then everything makes sense. -- Greg
