为什么视图不会随着 FuncAnimation 绘制的新数据而改变？

Question

我正在绘制一些数据，但没有看到。如果缩小，您会发现数据绘制在图的另一侧，并且视图不会...自动更改为能够看到数据。有人可以帮帮我吗？

from matplotlib import pyplot as plt
from matplotlib.animation import FuncAnimation


fig = plt.figure()
ax = fig.add_subplot()
line, = ax.plot([],[])
x = []
y = []

def animate(i):
    x.append(i)
    y.append((-1)**i)
    line.set_data(x, y)
    return line,

anim = FuncAnimation(fig, animate, frames=200, interval=100, blit=True)
plt.show()

Answer 1

按照, you need to call the axes relim and autoscale_view方法。

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


fig = plt.figure()
ax = fig.add_subplot()
line, = ax.plot([],[])
x = []
y = []

def animate(i):
    x.append(i)
    y.append((-1)**i)
    line.set_data(x, y)
    ax.relim()
    ax.autoscale_view()
    return line,

anim = FuncAnimation(fig, animate,
                     frames=200, interval=100, blit=True)
plt.show()

为什么视图不会随着 FuncAnimation 绘制的新数据而改变？

Why the view doesn't change with the new data that plotted by FuncAnimation?

matplotlib

python-3.x

matplotlib-animation