单选按钮

使用单选按钮选择绘图的属性。

单选按钮允许您在可视化中的多个选项之间进行选择。在这种情况下，按钮允许用户从图中显示的三种不同的正弦波中选择一种。

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.widgets import RadioButtons

t = np.arange(0.0, 2.0, 0.01)
s0 = np.sin(2*np.pi*t)
s1 = np.sin(4*np.pi*t)
s2 = np.sin(8*np.pi*t)

fig, ax = plt.subplots()
l, = ax.plot(t, s0, lw=2, color='red')
plt.subplots_adjust(left=0.3)

axcolor = 'lightgoldenrodyellow'
rax = plt.axes([0.05, 0.7, 0.15, 0.15], facecolor=axcolor)
radio = RadioButtons(rax, ('2 Hz', '4 Hz', '8 Hz'))


def hzfunc(label):
    hzdict = {'2 Hz': s0, '4 Hz': s1, '8 Hz': s2}
    ydata = hzdict[label]
    l.set_ydata(ydata)
    plt.draw()
radio.on_clicked(hzfunc)

rax = plt.axes([0.05, 0.4, 0.15, 0.15], facecolor=axcolor)
radio2 = RadioButtons(rax, ('red', 'blue', 'green'))


def colorfunc(label):
    l.set_color(label)
    plt.draw()
radio2.on_clicked(colorfunc)

rax = plt.axes([0.05, 0.1, 0.15, 0.15], facecolor=axcolor)
radio3 = RadioButtons(rax, ('-', '--', '-.', 'steps', ':'))


def stylefunc(label):
    l.set_linestyle(label)
    plt.draw()
radio3.on_clicked(stylefunc)

plt.show()