[net.micro.atari16] coordinate systems

garl@nlm-mcs.ARPA (Gary Letourneau) (05/05/86)

    If one does not want to use the default coordinate system used to plot
  into a window (upper left is 0,0), is there a way of changing this 
  coordinate system. For example, I want to use a cartesian coordinate system
  with the center "midwindow". Any information describing how to do this would
  be much appreciated.

						Gary Letourneau
						letourneau@nlm-mcs