我有一个带有button_press_event
的matplotlib小人物。在听众内部,我使用plt.pause
来为每次点击制作简短的动画。这工作正常,并且符合预期。但是,如果我在动画结束之前再次单击,则会输入递归,其余动画将在最后播放。如果单击得足够快,您甚至可以到达RecursionError
。
我需要更改什么,因此单击新键将放弃on_click
方法中所有剩余的步骤?
import numpy as np
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.subplots()
ax.set_xlim(0, 10)
ax.set_ylim(0, 10)
xy = np.random.random(2)*10
h1 = ax.plot(xy[0], xy[1], marker='x', color='k')[0]
h2 = ax.plot(xy[0], xy[1], marker='o', color='r')[0]
def on_click(event):
h1.set_xdata(event.xdata)
h1.set_ydata(event.ydata)
for i in range(10):
h2.set_xdata(event.xdata+np.random.random()-0.5)
h2.set_ydata(event.ydata+np.random.random()-0.5)
plt.pause(0.1)
cid_click = fig.canvas.mpl_connect('button_press_event', on_click)
您可以使用FuncAnimation
。然后确保在开始播放新动画之前停止并删除以前的动画。
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.animation import FuncAnimation
fig, ax = plt.subplots()
ax.set_xlim(0, 10)
ax.set_ylim(0, 10)
xy = np.random.random(2)*10
h1 = ax.plot(xy[0], xy[1], marker='x', color='k')[0]
h2 = ax.plot(xy[0], xy[1], marker='o', color='r')[0]
anis = []
def on_click(event):
h1.set_xdata(event.xdata)
h1.set_ydata(event.ydata)
def animate(i):
h2.set_xdata(event.xdata+np.random.random()-0.5)
h2.set_ydata(event.ydata+np.random.random()-0.5)
for ani in anis:
ani.event_source.stop()
anis.remove(ani)
del ani
anis.append(FuncAnimation(fig, animate, frames=10, repeat=False))
fig.canvas.draw_idle()
cid_click = fig.canvas.mpl_connect('button_press_event', on_click)
plt.show()