.. _api-patch_collection:

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



.. plot:: /home/mandrake/rpm/BUILD/matplotlib-1.1.1/doc/mpl_examples/api/patch_collection.py

::

    import matplotlib
    from matplotlib.patches import Circle, Wedge, Polygon
    from matplotlib.collections import PatchCollection
    import pylab
    
    fig=pylab.figure()
    ax=fig.add_subplot(111)
    
    resolution = 50 # the number of vertices
    N = 3
    x       = pylab.rand(N)
    y       = pylab.rand(N)
    radii   = 0.1*pylab.rand(N)
    patches = []
    for x1,y1,r in zip(x, y, radii):
        circle = Circle((x1,y1), r)
        patches.append(circle)
    
    x       = pylab.rand(N)
    y       = pylab.rand(N)
    radii   = 0.1*pylab.rand(N)
    theta1  = 360.0*pylab.rand(N)
    theta2  = 360.0*pylab.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(pylab.rand(N,2), True)
        patches.append(polygon)
    
    colors = 100*pylab.rand(len(patches))
    p = PatchCollection(patches, cmap=matplotlib.cm.jet, alpha=0.4)
    p.set_array(pylab.array(colors))
    ax.add_collection(p)
    pylab.colorbar(p)
    
    pylab.show()
    

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