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matplotlib.patches.Wedge:http://matplotlib.org/api/patches_api.html#matplotlib.patches.Wedge데모:http://matplotlib.org/examples/shapes_and_collections/artist_reference.html
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matplotlib.patches.Wedge:http://matplotlib.org/api/patches_api.html#matplotlib.patches.Wedge
데모:http://matplotlib.org/examples/shapes_and_collections/artist_reference.html