.. 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_shapes_and_collections_patch_collection.py: ============================ Circles, Wedges and Polygons ============================ This example demonstrates how to use :class:`patch collections<~.collections.PatchCollection>`. .. code-block:: python import numpy as np from matplotlib.patches import Circle, Wedge, Polygon from matplotlib.collections import PatchCollection import matplotlib.pyplot as plt # Fixing random state for reproducibility np.random.seed(19680801) fig, ax = plt.subplots() resolution = 50 # the number of vertices N = 3 x = np.random.rand(N) y = np.random.rand(N) radii = 0.1*np.random.rand(N) patches = [] for x1, y1, r in zip(x, y, radii): circle = Circle((x1, y1), r) patches.append(circle) x = np.random.rand(N) y = np.random.rand(N) radii = 0.1*np.random.rand(N) theta1 = 360.0*np.random.rand(N) theta2 = 360.0*np.random.rand(N) for x1, y1, r, t1, t2 in zip(x, y, radii, theta1, theta2): wedge = Wedge((x1, y1), r, t1, t2) patches.append(wedge) # Some limiting conditions on Wedge patches += [ Wedge((.3, .7), .1, 0, 360), # Full circle Wedge((.7, .8), .2, 0, 360, width=0.05), # Full ring Wedge((.8, .3), .2, 0, 45), # Full sector Wedge((.8, .3), .2, 45, 90, width=0.10), # Ring sector ] for i in range(N): polygon = Polygon(np.random.rand(N, 2), True) patches.append(polygon) colors = 100*np.random.rand(len(patches)) p = PatchCollection(patches, alpha=0.4) p.set_array(np.array(colors)) ax.add_collection(p) fig.colorbar(p, ax=ax) plt.show() .. image:: /gallery/shapes_and_collections/images/sphx_glr_patch_collection_001.png :class: sphx-glr-single-img ------------ References """""""""" The use of the following functions, methods, classes and modules is shown in this example: .. code-block:: python import matplotlib matplotlib.patches matplotlib.patches.Circle matplotlib.patches.Wedge matplotlib.patches.Polygon matplotlib.collections.PatchCollection matplotlib.collections.Collection.set_array matplotlib.axes.Axes.add_collection matplotlib.figure.Figure.colorbar .. _sphx_glr_download_gallery_shapes_and_collections_patch_collection.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: patch_collection.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: patch_collection.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_