.. _sphx_glr_gallery_lines_bars_and_markers_line_demo_dash_control.py: ======================================= 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). .. image:: /gallery/lines_bars_and_markers/images/sphx_glr_line_demo_dash_control_001.png :align: center .. code-block:: python 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() .. only :: html .. container:: sphx-glr-footer .. container:: sphx-glr-download :download:`Download Python source code: line_demo_dash_control.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: line_demo_dash_control.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_