極表示でのプロットと装飾

極座標表示でのプロットの仕方の例といくつか装飾を加えて。

../../../_images/plot_polar_1.png

Python ソースコード: plot_polar.py

import numpy as np

import matplotlib.pyplot as plt



plt.subplot(1, 1, 1, polar=True)



N = 20

theta = np.arange(0.0, 2 * np.pi, 2 * np.pi / N)

radii = 10 * np.random.rand(N)

width = np.pi / 4 * np.random.rand(N)

bars = plt.bar(theta, radii, width=width, bottom=0.0)

for r, bar in zip(radii, bars):

    bar.set_facecolor(plt.cm.jet(r / 10.))

    bar.set_alpha(0.5)

plt.gca().set_xticklabels([])

plt.gca().set_yticklabels([])



plt.text(-0.2, 1.02, " Polar Axis\n",

      horizontalalignment='left',

      verticalalignment='top',

      size='xx-large',

      bbox=dict(facecolor='white', alpha=1.0, width=400, height=65),

      transform=plt.gca().transAxes)

plt.text(-0.2, 1.01, "\n\n Plot anything using polar axis ",

      horizontalalignment='left',

      verticalalignment='top',

      size='large',

      transform=plt.gca().transAxes)



plt.show()

Total running time of the example: 0.08 seconds ( 0 minutes 0.08 seconds)