>>> """
============
Polar Legend
============

Demo of a legend on a polar-axis plot.
"""
... 
... import matplotlib.pyplot as plt
... import numpy as np
... 
... fig = plt.figure()
... ax = fig.add_subplot(projection="polar", facecolor="lightgoldenrodyellow")
... 
... r = np.linspace(0, 3, 301)
... theta = 2 * np.pi * r
... ax.plot(theta, r, color="tab:orange", lw=3, label="a line")
... ax.plot(0.5 * theta, r, color="tab:blue", ls="--", lw=3, label="another line")
... ax.tick_params(grid_color="palegoldenrod")
... # For polar axes, it may be useful to move the legend slightly away from the
... # axes center, to avoid overlap between the legend and the axes.  The following
... # snippet places the legend's lower left corner just outside of the polar axes
... # at an angle of 67.5 degrees in polar coordinates.
... angle = np.deg2rad(67.5)
... ax.legend(loc="lower left",
...           bbox_to_anchor=(.5 + np.cos(angle)/2, .5 + np.sin(angle)/2))
... 
... plt.show()
... 
... #############################################################################
... #
... # .. admonition:: References
... #
... #    The use of the following functions, methods, classes and modules is shown
... #    in this example:
... #
... #    - `matplotlib.axes.Axes.plot` / `matplotlib.pyplot.plot`
... #    - `matplotlib.axes.Axes.legend` / `matplotlib.pyplot.legend`
... #    - `matplotlib.projections.polar`
... #    - `matplotlib.projections.polar.PolarAxes`
...