#!/usr/bin/python
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as anim
import time
data=np.loadtxt("s1d.dat")

fig, ax = plt.subplots()
x = np.arange(0, 100, 1)
ix=[1,5000,10000,15000,19990]
plt.grid()

for i in ix:
    
 print i
 plt.cla()    
 y=data[i,:]
 plt.plot(x,y)
 plt.draw()
 plt.pause(1.)
plt.pause(-1)

 
#def animate(i):
#    plt.plot(ix,data[4,:])
#    print i
#    return


#ani = anim.FuncAnimation(fig, animate, interval=1, blit=True, save_count=1)

# To save the animation, use e.g.
#
# ani.save("movie.mp4")
#
# or
#
# from matplotlib.animation import FFMpegWriter
# writer = FFMpegWriter(fps=15, metadata=dict(artist='Me'), bitrate=1800)
# ani.save("movie.mp4", writer=writer)