python matplotlib dash-dot-dot - how to?

您可以定义[自定义
破折号:

import matplotlib.pyplot as pltline, = plt.plot([1,5,2,4], '-')line.set_dashes([8, 4, 2, 4, 2, 4]) plt.show()

[8, 4, 2, 4, 2, 4]

• 8 points on, (dash)
• 4 points off,
• 2 points on, (dot)
• 4 points off,
• 2 points on, (dot)
• 4 points off.

@Achim noted you can also specify the

dashes

plt.plot([1,5,2,4], '-', dashes=[8, 4, 2, 4, 2, 4])plt.show()

produces the same result shown above.