from pylab import figure,show,rand
from matplotlib.patches import Ellipse
NUM = 250
ells = [Ellipse(xy=rand(2)*10, width=rand(), height=rand(), angle=rand()*360)
for i in xrange(NUM)]
fig = figure()
ax = fig.add_subplot(111, aspect='equal')
for e in ells:
ax.add_artist(e)
e.set_clip_box(ax.bbox)
e.set_alpha(rand())
e.set_facecolor(rand(3))
ax.set_xlim(0, 10)
ax.set_ylim(0, 10)
show()
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