.. note:: :class: sphx-glr-download-link-note Click :ref:`here ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_gallery_api_scatter_piecharts.py: =================================== Scatter plot with pie chart markers =================================== This example makes custom 'pie charts' as the markers for a scatter plot. Thanks to Manuel Metz for the example .. image:: /gallery/api/images/sphx_glr_scatter_piecharts_001.png :class: sphx-glr-single-img .. code-block:: python import numpy as np import matplotlib.pyplot as plt # first define the ratios r1 = 0.2 # 20% r2 = r1 + 0.4 # 40% # define some sizes of the scatter marker sizes = np.array([60, 80, 120]) # calculate the points of the first pie marker # # these are just the origin (0,0) + # some points on a circle cos,sin x = [0] + np.cos(np.linspace(0, 2 * np.pi * r1, 10)).tolist() y = [0] + np.sin(np.linspace(0, 2 * np.pi * r1, 10)).tolist() xy1 = np.column_stack([x, y]) s1 = np.abs(xy1).max() x = [0] + np.cos(np.linspace(2 * np.pi * r1, 2 * np.pi * r2, 10)).tolist() y = [0] + np.sin(np.linspace(2 * np.pi * r1, 2 * np.pi * r2, 10)).tolist() xy2 = np.column_stack([x, y]) s2 = np.abs(xy2).max() x = [0] + np.cos(np.linspace(2 * np.pi * r2, 2 * np.pi, 10)).tolist() y = [0] + np.sin(np.linspace(2 * np.pi * r2, 2 * np.pi, 10)).tolist() xy3 = np.column_stack([x, y]) s3 = np.abs(xy3).max() fig, ax = plt.subplots() ax.scatter(range(3), range(3), marker=(xy1, 0), s=s1 ** 2 * sizes, facecolor='blue') ax.scatter(range(3), range(3), marker=(xy2, 0), s=s2 ** 2 * sizes, facecolor='green') ax.scatter(range(3), range(3), marker=(xy3, 0), s=s3 ** 2 * sizes, facecolor='red') plt.show() .. _sphx_glr_download_gallery_api_scatter_piecharts.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: scatter_piecharts.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: scatter_piecharts.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_