滑鼠游標

此範例會在圖形畫布上設定替代游標。

請注意，這是一個互動式範例，必須執行才能看到效果。

import matplotlib.pyplot as plt

from matplotlib.backend_tools import Cursors

fig, axs = plt.subplots(len(Cursors), figsize=(6, len(Cursors) + 0.5),
                        gridspec_kw={'hspace': 0})
fig.suptitle('Hover over an Axes to see alternate Cursors')

for cursor, ax in zip(Cursors, axs):
    ax.cursor_to_use = cursor
    ax.text(0.5, 0.5, cursor.name,
            horizontalalignment='center', verticalalignment='center')
    ax.set(xticks=[], yticks=[])


def hover(event):
    if fig.canvas.widgetlock.locked():
        # Don't do anything if the zoom/pan tools have been enabled.
        return

    fig.canvas.set_cursor(
        event.inaxes.cursor_to_use if event.inaxes else Cursors.POINTER)


fig.canvas.mpl_connect('motion_notify_event', hover)

plt.show()

參考文獻

此範例中顯示下列函數、方法、類別和模組的用法

• matplotlib.backend_bases.FigureCanvasBase.set_cursor