.. only:: html
.. note::
:class: sphx-glr-download-link-note
Click :ref:`here ` to download the full example code
.. rst-class:: sphx-glr-example-title
.. _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 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.
Note that this approach uses the `mpl_toolkits.axes_grid1.parasite_axes`'
`~mpl_toolkits.axes_grid1.parasite_axes.host_subplot` and
`mpl_toolkits.axisartist.axislines.Axes`. An alternative approach using the
`~mpl_toolkits.axes_grid1.parasite_axes`'s
`~.mpl_toolkits.axes_grid1.parasite_axes.HostAxes` and
`~.mpl_toolkits.axes_grid1.parasite_axes.ParasiteAxes` is the
:doc:`/gallery/axisartist/demo_parasite_axes` example.
An alternative approach using the usual matplotlib subplots is shown in
the :doc:`/gallery/ticks_and_spines/multiple_yaxis_with_spines` example.
.. image:: /gallery/axisartist/images/sphx_glr_demo_parasite_axes2_001.png
:alt: demo parasite axes2
:class: sphx-glr-single-img
.. code-block:: default
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.show()
.. _sphx_glr_download_gallery_axisartist_demo_parasite_axes2.py:
.. only :: html
.. container:: sphx-glr-footer
:class: sphx-glr-footer-example
.. container:: sphx-glr-download sphx-glr-download-python
:download:`Download Python source code: demo_parasite_axes2.py `
.. container:: sphx-glr-download sphx-glr-download-jupyter
:download:`Download Jupyter notebook: demo_parasite_axes2.ipynb `
.. only:: html
.. rst-class:: sphx-glr-signature
Keywords: matplotlib code example, codex, python plot, pyplot
`Gallery generated by Sphinx-Gallery
`_