.. 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 :class: sphx-glr-single-img .. 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.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 :download:`Download Python source code: demo_parasite_axes2.py ` .. container:: sphx-glr-download :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 `_