On 11/17/05, Shi Mu <samrobertsmith at gmail.com> wrote: > why subtract 1 from max_y - original_y? Because in the computer science world we like starting to count at 0. image_size = 1000 original_y = 25 # Really the 26th pixel line. new_y = 1000 - 25 - 1 # 26 pixels from the bottom of the screen. -- Steve Juranich Tucson, AZ USA