content: #!/usr/bin/env python
  import freenect
  import matplotlib.pyplot as mp
  import signal
  import frame_convert
  
  mp.ion()
  image_rgb = None
  image_depth = None
  keep_running = True
  
  
  def display_depth(dev, data, timestamp):
      global image_depth
      data = frame_convert.pretty_depth(data)
      mp.gray()
      mp.figure(1)
      if image_depth:
          image_depth.set_data(data)
      else:
          image_depth = mp.imshow(data, interpolation='nearest', animated=True)
      mp.draw()
  
  
  def display_rgb(dev, data, timestamp):
      global image_rgb
      mp.figure(2)
      if image_rgb:
          image_rgb.set_data(data)
      else:
          image_rgb = mp.imshow(data, interpolation='nearest', animated=True)
      mp.draw()
  
  
  def body(*args):
      if not keep_running:
          raise freenect.Kill
  
  
  def handler(signum, frame):
      global keep_running
      keep_running = False
  
  
  print('Press Ctrl-C in terminal to stop')
  signal.signal(signal.SIGINT, handler)
  freenect.runloop(depth=display_depth,
                   video=display_rgb,
                   body=body)
  