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from pylab import *
from matplotlib.widgets import Slider, Button
ax = subplot(111)
subplots_adjust(bottom=0.25)
t = arange(0.0, 1.0, 0.001)
s = sin(2*pi*t)
l, = plot(t,s, lw=2)
axis([0, 1, -10, 10])
axcolor = 'lightgoldenrodyellow'
axfreq = axes([0.125, 0.1, 0.775, 0.03], axisbg=axcolor)
axamp = axes([0.125, 0.15, 0.775, 0.03], axisbg=axcolor)
sfreq = Slider(axfreq, 'Freq', 0.1, 30.0, valinit=1, facecolor='blue', alpha=0.5)
samp = Slider(axamp, 'Amp', 0.1, 10.0, valinit=1, facecolor='red', alpha=0.5)
def update(val):
amp = samp.val
freq = sfreq.val
l.set_ydata(amp*sin(2*pi*freq*t))
draw()
sfreq.on_changed(update)
samp.on_changed(update)
resetax = axes([0.8, 0.025, 0.1, 0.04])
button = Button(resetax, 'Reset')
def reset(event):
sfreq.reset()
samp.reset()
button.on_clicked(reset)
show()
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