如何防止matplotlib.figure饼图图例从FigureCanvasTkAgg画布上剪切掉？

Question

我正在尝试将matplotlib饼图嵌入到tkinter GUI中，图例要么适合画布，但与图形重叠，或者被切除。

我尝试设置画布的大小（canvas.get_tk_widget（）。config（width = 900，height = 600）），但图例将继续被剪切并且图形将被拉伸。我该怎么做才能解决此问题？

def __init__(self, master):
    self.func_list, self.value_list = Graph.get_data()
    self.figure = Graph.draw_graph(self.value_list, self.func_list)
    self.canvas = Graph.create_canvas(self.figure, master)
    self.canvas.draw()

@staticmethod
def create_canvas(figure, master):
    canvas = FigureCanvasTkAgg(figure, master)
    canvas.get_tk_widget().pack(side=LEFT)
    canvas.get_tk_widget().config(width=900, height=600)
    return canvas

@staticmethod
def draw_graph(values, legend):
    fig = matplotlib.figure.Figure(figsize=(5, 5))
    ax = fig.add_subplot(111)
    ax.pie(values)
    ax.legend(legend, bbox_to_anchor=(1, 1))

    circle = matplotlib.patches.Circle((0, 0), 0.7, color='white')
    ax.add_artist(circle)
    return fig

'''

我希望图形显示在画布的右侧，图例显示在左侧