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# A simple plot with a custom dashed line

A Line object’s `set_dashes` method allows you to specify dashes with a series of on/off lengths (in points).

    import numpy as np
    import matplotlib.pyplot as plt

    x = np.linspace(0, 10, 500)
    dashes = [10, 5, 100, 5]  # 10 points on, 5 off, 100 on, 5 off

    fig, ax = plt.subplots()
    line1, = ax.plot(x, np.sin(x), '--', linewidth=2,
                     label='Dashes set retroactively')
    line1.set_dashes(dashes)

    line2, = ax.plot(x, -1 * np.sin(x), dashes=[30, 5, 10, 5],
                     label='Dashes set proactively')

    ax.legend(loc='lower right')
    plt.show()

Total running time of the script: ( 0 minutes 0.042 seconds)

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