.. _sphx_glr_gallery_pie_and_polar_charts_polar_bar.py: ======================= Pie chart on polar axis ======================= Demo of bar plot on a polar axis. .. image:: /gallery/pie_and_polar_charts/images/sphx_glr_polar_bar_001.png :align: center .. code-block:: python import numpy as np import matplotlib.pyplot as plt # Fixing random state for reproducibility np.random.seed(19680801) # Compute pie slices N = 20 theta = np.linspace(0.0, 2 * np.pi, N, endpoint=False) radii = 10 * np.random.rand(N) width = np.pi / 4 * np.random.rand(N) ax = plt.subplot(111, projection='polar') bars = ax.bar(theta, radii, width=width, bottom=0.0) # Use custom colors and opacity for r, bar in zip(radii, bars): bar.set_facecolor(plt.cm.viridis(r / 10.)) bar.set_alpha(0.5) plt.show() **Total running time of the script:** ( 0 minutes 0.022 seconds) .. only :: html .. container:: sphx-glr-footer .. container:: sphx-glr-download :download:`Download Python source code: polar_bar.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: polar_bar.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_