相关疑难解决方法(0)

我在这里重新绘制数字时遇到问题.我允许用户在时间刻度(x轴)中指定单位,然后重新计算并调用此函数plots().我希望情节简单地更新,而不是在图中附加另一个情节.

def plots():
    global vlgaBuffSorted
    cntr()

    result = collections.defaultdict(list)
    for d in vlgaBuffSorted:
        result[d['event']].append(d)

    result_list = result.values()

    f = Figure()
    graph1 = f.add_subplot(211)
    graph2 = f.add_subplot(212,sharex=graph1)

    for item in result_list:
        tL = []
        vgsL = []
        vdsL = []
        isubL = []
        for dict in item:
            tL.append(dict['time'])
            vgsL.append(dict['vgs'])
            vdsL.append(dict['vds'])
            isubL.append(dict['isub'])
        graph1.plot(tL,vdsL,'bo',label='a')
        graph1.plot(tL,vgsL,'rp',label='b')
        graph2.plot(tL,isubL,'b-',label='c')

    plotCanvas = FigureCanvasTkAgg(f, pltFrame)
    toolbar = NavigationToolbar2TkAgg(plotCanvas, pltFrame)
    toolbar.pack(side=BOTTOM)
    plotCanvas.get_tk_widget().pack(side=TOP)

我正在循环绘制并保存数千个文件以供以后的动画使用，如下所示：

import matplotlib.pyplot as plt
for result in results:
    plt.figure()
    plt.plot(result)                     # this changes
    plt.xlabel('xlabel')                 # this doesn't change
    plt.ylabel('ylabel')                 # this doesn't change
    plt.title('title')                   # this changes
    plt.ylim([0,1])                      # this doesn't change
    plt.grid(True)                       # this doesn't change
    plt.savefig(location, bbox_inches=0) # this changes

当我运行它并获得大量结果时，它会在保存数千个图后崩溃。我想我想做的是重用我的轴，就像这个答案一样： https: //stackoverflow.com/a/11688881/354979，但我不明白如何。我该如何优化它？