时间相关绘图matplotlib

首先,由于您的 animate(i) 没有返回任何内容。你需要回去 line, .其次,您没有使用 i 在里面 动画制作(i) 还有。

下面是一个简单的正弦曲线动画 https://jakevdp.github.io/blog/2012/08/18/matplotlib-animation-tutorial/ :

import numpy as np
from matplotlib import pyplot as plt
from matplotlib import animation

# First set up the figure, the axis, and the plot element we want to 
animate
fig = plt.figure()
ax = plt.axes(xlim=(0, 2), ylim=(-2, 2))
line, = ax.plot([], [], lw=2)

# initialization function: plot the background of each frame
def init():
    line.set_data([], [])
    return line,

# animation function.  This is called sequentially
def animate(i):
    x = np.linspace(0, 2, 1000)
    y = np.sin(2 * np.pi * (x - 0.01 * i))
    line.set_data(x, y)
    return line,

# call the animator.  blit=True means only re-draw the parts that have 
changed.
anim = animation.FuncAnimation(fig, animate, init_func=init,
                           frames=200, interval=20, blit=True)

plt.show()

链接中还有其他灵感,可能会进一步帮助您。

动画应返回艺术家对象的序列:

您应该添加:

return line, 到动画功能的末尾

def animate(i):
    x.append(x[-1]+0.04)
    line.set_xdata(np.asarray(x)*2*np.pi/5)
    line.set_ydata(np.sin(np.asarray(x)*2*np.pi/5))
    return line,

资料来源:

Another answer

Simple Example