title: "continuous" plotting in Pygame
body: <p>I do I plot a "continuous", moving plot in Pygame, like the plot in <a href="http://ccl.northwestern.edu/netlogo/models/run.cgi?Altruism.735.518" rel="nofollow">this</a> "NetLogo" simulation? My main difficulty is not the plotting itself (lines between points) but the process of moving the framework of the plot when the curve getting close to the edge of the box. </p>
  
  <p>Thank you.</p>