.. _api-patch_collection:

api example code: patch_collection.py
=====================================



.. plot:: /home/tcaswell/source/my_source/matplotlib/doc/mpl_examples/api/patch_collection.py

::

    import numpy as np
    import matplotlib
    from matplotlib.patches import Circle, Wedge, Polygon
    from matplotlib.collections import PatchCollection
    import matplotlib.pyplot as plt
    
    
    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, cmap=matplotlib.cm.jet, alpha=0.4)
    p.set_array(np.array(colors))
    ax.add_collection(p)
    plt.colorbar(p)
    
    plt.show()
    

Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)