def init_func(self):
    for p in self.patches:
        self.ax.add_patch(p)
    for a in self.artists:
        self.ax.add_artist(a)
    return (self.patches + self.artists)
def init_func(self):
    for p in self.patches:
        self.ax.add_patch(p)
    for a in self.artists:
        self.ax.add_artist(a)
    return (self.patches + self.artists)