Colab中的互动图

Question

有谁知道是否有一种方法可以制作图形，以便在Colab中将鼠标悬停时显示轴值？我发现了以下几个答案import matplotlib.pylab as pltimport numpy as npf,a = plt.subplots()x = [0,1,2,3]y = [5,6,7,8]a.plot(x,y)pos = []def onclick(event):    pos.append([event.xdata,event.ydata])f.canvas.mpl_connect("motion_notify_event", 'hover')plt.show()但不幸的是，他们似乎无法在Colab中工作

Answer 1

尝试以下代码，并根据您的功能对其进行修改。

import numpy as np

import matplotlib.pyplot as plt

from matplotlib import animation, rc

from IPython.display import HTML

# First set up the figure, the axis, and the plot element we want to animate

fig, ax = plt.subplots()

plt.close()

ax.set_xlim(( 0, 2))

ax.set_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,)

anim = animation.FuncAnimation(fig, animate, init_func=init,

                             frames=100, interval=100, blit=True)

# Note: below is the part which makes it work on Colab

rc('animation', html='jshtml')

anim