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Mar 26, 2020
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Cleanup new_fixed_axis examples. #16877

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25 changes: 9 additions & 16 deletions examples/axisartist/demo_parasite_axes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -29,37 +29,30 @@
host.parasites.append(par1)
host.parasites.append(par2)

host.set_ylabel("Density")
host.set_xlabel("Distance")

host.axis["right"].set_visible(False)
par1.axis["right"].set_visible(True)
par1.set_ylabel("Temperature")

par1.axis["right"].set_visible(True)
par1.axis["right"].major_ticklabels.set_visible(True)
par1.axis["right"].label.set_visible(True)

par2.set_ylabel("Velocity")
offset = (60, 0)
new_axisline = par2.get_grid_helper().new_fixed_axis
par2.axis["right2"] = new_axisline(loc="right", axes=par2, offset=offset)
par2.axis["right2"] = par2.new_fixed_axis(loc="right", offset=(60, 0))

fig.add_axes(host)

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

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

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")

host.set_xlim(0, 2)
host.set_ylim(0, 2)
par1.set_ylim(0, 4)
par2.set_ylim(1, 65)

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

host.legend()

host.axis["left"].label.set_color(p1.get_color())
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45 changes: 20 additions & 25 deletions examples/axisartist/demo_parasite_axes2.py
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Original file line number Diff line number Diff line change
@@ -1,27 +1,27 @@
"""
===================
Demo Parasite Axes2
===================

==================
Parasite axis demo
==================

This example demonstrates the use of parasite axis to plot multiple datasets
onto one single plot.

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.
Notice how in this example, *par1* and *par2* are both obtained by calling
``twinx()``, which ties their x-limits with the host's x-axis. From there, each
of those two axis behave separately from each other: different datasets can be
plotted, and the y-limits are adjusted separately.

Note that this approach uses the `mpl_toolkits.axes_grid1.parasite_axes`\'
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`'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
An alternative approach using the usual Matplotlib subplots is shown in
the :doc:`/gallery/ticks_and_spines/multiple_yaxis_with_spines` example.
"""

from mpl_toolkits.axes_grid1 import host_subplot
from mpl_toolkits import axisartist
import matplotlib.pyplot as plt
Expand All @@ -32,30 +32,25 @@
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))
par2.axis["right"] = par2.new_fixed_axis(loc="right", offset=(60, 0))

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

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")

host.set_xlim(0, 2)
host.set_ylim(0, 2)
par1.set_ylim(0, 4)
par2.set_ylim(1, 65)

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())
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7 changes: 2 additions & 5 deletions examples/axisartist/simple_axisline.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,8 @@
===============

"""
import matplotlib.pyplot as plt

import matplotlib.pyplot as plt
from mpl_toolkits.axisartist.axislines import SubplotZero


Expand All @@ -30,10 +30,7 @@
#ax.axis["left"].label.set_text("Label Y")

# make new (right-side) yaxis, but with some offset
offset = (20, 0)
new_axisline = ax.get_grid_helper().new_fixed_axis

ax.axis["right2"] = new_axisline(loc="right", offset=offset, axes=ax)
ax.axis["right2"] = ax.new_fixed_axis(loc="right", offset=(20, 0))
ax.axis["right2"].label.set_text("Label Y2")

ax.plot([-2, 3, 2])
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