.. _sphx_glr_gallery_axisartist_demo_parasite_axes2.py:


===================
Demo Parasite Axes2
===================

Parasite axis demo

The following code is an example of a parasite axis. It aims to show a user how
to plot multiple different values onto one single plot. Notice how in this
example, par1 and par2 are both calling twinx meaning both are tied directly to
the x-axis. From there, each of those two axis can behave separately from the
each other, meaning they can take on separate values from themselves as well as
the x-axis.




.. image:: /gallery/axisartist/images/sphx_glr_demo_parasite_axes2_001.png
    :align: center





.. code-block:: python

    from mpl_toolkits.axes_grid1 import host_subplot
    import mpl_toolkits.axisartist as AA
    import matplotlib.pyplot as plt

    host = host_subplot(111, axes_class=AA.Axes)
    plt.subplots_adjust(right=0.75)

    par1 = host.twinx()
    par2 = host.twinx()

    offset = 60
    new_fixed_axis = par2.get_grid_helper().new_fixed_axis
    par2.axis["right"] = new_fixed_axis(loc="right",
                                        axes=par2,
                                        offset=(offset, 0))

    par1.axis["right"].toggle(all=True)
    par2.axis["right"].toggle(all=True)

    host.set_xlim(0, 2)
    host.set_ylim(0, 2)

    host.set_xlabel("Distance")
    host.set_ylabel("Density")
    par1.set_ylabel("Temperature")
    par2.set_ylabel("Velocity")

    p1, = host.plot([0, 1, 2], [0, 1, 2], label="Density")
    p2, = par1.plot([0, 1, 2], [0, 3, 2], label="Temperature")
    p3, = par2.plot([0, 1, 2], [50, 30, 15], label="Velocity")

    par1.set_ylim(0, 4)
    par2.set_ylim(1, 65)

    host.legend()

    host.axis["left"].label.set_color(p1.get_color())
    par1.axis["right"].label.set_color(p2.get_color())
    par2.axis["right"].label.set_color(p3.get_color())

    plt.draw()
    plt.show()



.. only :: html

 .. container:: sphx-glr-footer


  .. container:: sphx-glr-download

     :download:`Download Python source code: demo_parasite_axes2.py <demo_parasite_axes2.py>`



  .. container:: sphx-glr-download

     :download:`Download Jupyter notebook: demo_parasite_axes2.ipynb <demo_parasite_axes2.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.readthedocs.io>`_