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demo_parasite_axes2.py

from mpl_toolkits.axes_grid.parasite_axes import SubplotHost
import matplotlib.pyplot as plt

if 1:
    fig = plt.figure(1)

    host = SubplotHost(fig, 111)

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

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

    par1.set_ylabel("Temperature")

    par2.axis["right"].set_visible(False)

    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"].label.set_visible(True)
    par2.axis["right2"].set_label("Velocity")

    fig.add_axes(host)
    plt.subplots_adjust(right=0.75)

    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")

    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["right2"].label.set_color(p3.get_color())

    plt.draw()
    plt.show()

    #plt.savefig("Test")

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