import matplotlib.pyplot as plt
import numpy as np


# 存储初始范围和当前比例
initial_limits = {'x': None, 'y': None}
current_scale = 1.0
fig, ax = plt.subplots()
x = np.linspace(0, 10, 100)
ax.plot(x, np.sin(x))
def on_press(event):
    if event.button == 3:  # 右键按下
        initial_limits['x'] = ax.get_xlim()
        initial_limits['y'] = ax.get_ylim()

def on_release(event):
    global current_scale
    if event.button == 3 and initial_limits['x'] is not None:
        new_xlim = ax.get_xlim()
        scale_x = (initial_limits['x'][1] - initial_limits['x'][0]) / \
                 (new_xlim[1] - new_xlim[0])
        print(f"X轴缩放比例: {scale_x:.2f}倍")
        current_scale *= scale_x
        print(f"累计总缩放: {current_scale:.2f}倍")

if __name__ == '__main__':
    fig.canvas.mpl_connect('button_press_event', on_press)
    fig.canvas.mpl_connect('button_release_event', on_release)
    plt.show()