#coding=utf-8
import matplotlib.pyplot as plt
from matplotlib import animation
import numpy as np
import math
from mpl_toolkits.mplot3d import Axes3D
from matplotlib import cm
from matplotlib.ticker import LinearLocator, FormatStrFormatter
import matplotlib.pyplot as plt
import numpy as np
import matplotlib
myfont = matplotlib.font_manager.FontProperties(fname="STHeiti-UltraLight.ttc")
t = 'You are my sunshine\n' \
'my only sunshine.'
np.seterr(invalid='ignore')
figure = plt.figure()
axes = plt.axes(xlim=(-2, 2), ylim=(-2, 2))
line1, = axes.plot([], [], color='red', linewidth=2, label='1')
line2, = axes.plot([], [], color='red', linewidth=2, label='2')
def init():
line1.set_data([], [])
line2.set_data([], [])
return line1, line2
def animate(i):
#print i
t = np.linspace(0, i / math.pi, 100)
x = np.sin(t)
y = np.cos(t) + np.power(x, 2.0 / 3)
line1.set_data(x, y)
line2.set_data(-x, y)
re