Source Code for Script script-demo_animator_py

 1  """ 
 2  FILE: demo-animator.py 
 3   
 4   
 5  """ 
 6  from joy import JoyApp 
 7  from joy.plans import AnimatorPlan 
 8  from joy.decl import KEYDOWN   
 9  from numpy import linspace, sin 
10   
11 -def animationGen(fig): 
12    th = linspace(0,6.28*4,200) 
13    while True: 
14      for k in th: 
15        fig.clf() 
16        ax = fig.gca() 
17        ax.plot( th, sin(th+k), 'b-') 
18        ax.plot( th[::4], sin((th[::4]+k)*2), 'r.-' ) 
19        yield 
20         
21 -class App(JoyApp): 
22 -  def onStart(self): 
23        AnimatorPlan(self,animationGen).start() 
24   
25 -  def onEvent(self,evt): 
26        if evt.type == KEYDOWN: 
27          return JoyApp.onEvent(self,evt) 
28           
29  if __name__=="__main__": 
30    app = App() 
31    app.run() 
32