光标

光标示例

  1. from matplotlib.widgets import Cursor
  2. import numpy as np
  3. import matplotlib.pyplot as plt
  6. # Fixing random state for reproducibility
  7. np.random.seed(19680801)
  9. fig = plt.figure(figsize=(8, 6))
  10. ax = fig.add_subplot(111, facecolor='#FFFFCC')
  12. x, y = 4*(np.random.rand(2, 100) - .5)
  13. ax.plot(x, y, 'o')
  14. ax.set_xlim(-2, 2)
  15. ax.set_ylim(-2, 2)
  17. # Set useblit=True on most backends for enhanced performance.
  18. cursor = Cursor(ax, useblit=True, color='red', linewidth=2)
  20. plt.show()

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