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我在尝试从画布中删除几个子轴时遇到了麻烦。下面的示例脚本显示了该问题:

from matplotlib.figure import Figure
from mpl_toolkits.axes_grid.axes_divider import make_axes_locatable
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
from PyQt4.QtCore import *
from PyQt4.QtGui import *
import sys

class Test(QWidget):
    def __init__(self):
        QWidget.__init__(self)
        self.resize(1000, 600)  
        self.fig = Figure(figsize=(100,100), dpi=75)  
        axes1 = self.fig.add_subplot(121)
        axes2 = self.fig.add_subplot(122)

        self.subaxes = []
        for ax in [axes1, axes2]:
            divider = make_axes_locatable(ax)
            self.subaxes.append(divider.append_axes("right", "40%", "20%"))

        b = QPushButton("Remove subaxes")
        b.clicked.connect(self.OnBtnClicked)
        l = QHBoxLayout()
        l.addWidget(FigureCanvas(self.fig))
        l.addWidget(b)
        self.setLayout(l)

    def OnBtnClicked(self):
        for sa in self.subaxes:
            self.fig.delaxes(sa)
            del sa
        self.fig.canvas.draw()

app = QApplication(sys.argv)  
win = Test()
win.show()
sys.exit(app.exec_())

主窗口由两个主轴和位于其右侧的两个子轴组成。如果单击窗口中的按钮,两个子轴会按我的预期消失,但原始轴不会调整大小。有什么我想念的吗?或者任何人都可以指出我是否有更好的方法来实现这一目标?

提前致谢!

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