#!/usr/bin/env python
"""
A simple example of an animated plot in matplotlib. You can test the
speed of animation of various backends by running the script with the
'-dSomeBackend' flag
Here are some numbers from my system, where FPS is the frames rendered
per second
TkAgg 20 FPS
GTK 50 FPS
GTKAgg 36 FPS
GTKCairo 15 FPS
WX 11 FPS
WXAgg 27 FPS
"""
from pylab import *
import time
# turn interactive mode on for dynamic updates. If you aren't in
# interactive mode, you'll need to use a GUI event handler/timer.
ion()
tstart = time.time() # for profiling
x = arange(0,2*pi,0.01) # x-array
line, = plot(x,sin(x))
for i in arange(1,200):
line.set_ydata(sin(x+i/10.0)) # update the data
draw() # redraw the canvas
print 'FPS:' , 200/(time.time()-tstart)
