| """ |
| ============= |
| Check buttons |
| ============= |
| |
| Turning visual elements on and off with check buttons. |
| |
| This program shows the use of `.CheckButtons` which is similar to |
| check boxes. There are 3 different sine waves shown, and we can choose which |
| waves are displayed with the check buttons. |
| |
| Check buttons may be styled using the *check_props*, *frame_props*, and *label_props* |
| parameters. The parameters each take a dictionary with keys of artist property names and |
| values of lists of settings with length matching the number of buttons. |
| """ |
|
|
| import matplotlib.pyplot as plt |
| import numpy as np |
|
|
| from matplotlib.widgets import CheckButtons |
|
|
| 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(6*np.pi*t) |
|
|
| fig, ax = plt.subplots() |
| l0, = ax.plot(t, s0, visible=False, lw=2, color='black', label='1 Hz') |
| l1, = ax.plot(t, s1, lw=2, color='red', label='2 Hz') |
| l2, = ax.plot(t, s2, lw=2, color='green', label='3 Hz') |
|
|
| lines_by_label = {l.get_label(): l for l in [l0, l1, l2]} |
| line_colors = [l.get_color() for l in lines_by_label.values()] |
|
|
| |
| rax = ax.inset_axes([0.0, 0.0, 0.12, 0.2]) |
| check = CheckButtons( |
| ax=rax, |
| labels=lines_by_label.keys(), |
| actives=[l.get_visible() for l in lines_by_label.values()], |
| label_props={'color': line_colors}, |
| frame_props={'edgecolor': line_colors}, |
| check_props={'facecolor': line_colors}, |
| ) |
|
|
|
|
| def callback(label): |
| ln = lines_by_label[label] |
| ln.set_visible(not ln.get_visible()) |
| ln.figure.canvas.draw_idle() |
|
|
| check.on_clicked(callback) |
|
|
| plt.show() |
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