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单选按钮#

使用单选按钮来选择绘图的属性.

单选按钮允许您在可视化中选择多个选项之一.在本例中,这些按钮允许用户选择要在绘图中显示的三个不同正弦波之一.

可以使用 label_props 和 radio_props 参数来设置单选按钮的样式,这两个参数都接受一个字典,字典的键是艺术家属性名称,值是设置的列表,其长度与按钮的数量相匹配.

import matplotlib.pyplot as plt
import numpy as np

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.subplot_mosaic(
    [
        ['main', 'freq'],
        ['main', 'color'],
        ['main', 'linestyle'],
    ],
    width_ratios=[5, 1],
    layout='constrained',
)
l, = ax['main'].plot(t, s0, lw=2, color='red')

radio_background = 'lightgoldenrodyellow'

ax['freq'].set_facecolor(radio_background)
radio = RadioButtons(ax['freq'], ('1 Hz', '2 Hz', '4 Hz'),
                     label_props={'color': 'cmy', 'fontsize': [12, 14, 16]},
                     radio_props={'s': [16, 32, 64]})


def hzfunc(label):
    hzdict = {'1 Hz': s0, '2 Hz': s1, '4 Hz': s2}
    ydata = hzdict[label]
    l.set_ydata(ydata)
    fig.canvas.draw()
radio.on_clicked(hzfunc)

ax['color'].set_facecolor(radio_background)
radio2 = RadioButtons(
    ax['color'], ('red', 'blue', 'green'),
    label_props={'color': ['red', 'blue', 'green']},
    radio_props={
        'facecolor': ['red', 'blue', 'green'],
        'edgecolor': ['darkred', 'darkblue', 'darkgreen'],
    })


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

ax['linestyle'].set_facecolor(radio_background)
radio3 = RadioButtons(ax['linestyle'], ('-', '--', '-.', ':'))


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

plt.show()
radio buttons

参考

以下函数,方法,类和模块的用法在本例中显示:

  • matplotlib.widgets.RadioButtons

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