Question

我在wxFrame中创建了一个Panel，然后创建了一个FigureCanvas。我想将FigureCanvas完全放入面板中，但是不知何故，FigureCanvas并没有进入panel2_2，而是恰好在另一侧。

以下是我的代码。

import wx
from numpy import arange, sin, pi
import matplotlib
matplotlib.use('WXAgg')

from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.figure import Figure


class Frame1(wx.Frame):

    def __init__(self, prnt):

        wx.Frame.__init__(self, parent=prnt,
                          pos=wx.Point(0, 0), size=wx.Size(1340, 720),
                          style=wx.DEFAULT_FRAME_STYLE)

        self.panel2_2 = wx.Panel(parent=self,
                                 pos=wx.Point(940, 30), size=wx.Size(400, 690),
                                 style=wx.TAB_TRAVERSAL)

        self.figure = Figure()
        self.axes = self.figure.add_subplot(111)
        self.canvas = FigureCanvas(self.panel2_2, -1, self.figure)

        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(self.canvas, 0, wx.EXPAND)
        self.panel2_2.SetSizer(sizer)
        self.panel2_2.Fit()

        t = arange(0.0, 3.0, 0.01)
        s = sin(2 * pi * t)
        self.axes.plot(t, s)


#Every wxWidgets application must have a class derived from wxApp
class MyApp(wx.App):
# wxWidgets calls this method to initialize the application
    def OnInit(self):

        # Create an instance of our customized Frame class
        self.frame = Frame1(None)
        self.SetTopWindow(self.frame)
        self.frame.Show()
        return True


if __name__ == '__main__':
    application = MyApp(0)
    application.MainLoop()

和结果

我想将图像放置在panel2_2上（即在右侧）而不是在左侧

Answer 1

我认为画布确实将进入panel2_2。您的MWE中的问题是您没有为panel2_2定义大小调整器。因此，panel2_2是从框架的左上角渲染的。这将导致panel2_2以及显示在框架左侧的画布。您在画布右侧看到的不是panel2_2，而是框架的其余部分，因为框架的尺寸大于panel2_2的尺寸。如果您添加蓝色的panel1_1并将另一个wx.BoxSizer分配给框架，则画布将显示在右侧。

import wx
from numpy import arange, sin, pi
import matplotlib
matplotlib.use('WXAgg')

from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.figure import Figure


class Frame1(wx.Frame):

    def __init__(self, prnt):

        wx.Frame.__init__(self, parent=prnt,
                          pos=wx.Point(0, 0), size=wx.Size(1340, 720),
                          style=wx.DEFAULT_FRAME_STYLE)

        self.panel1_1 = wx.Panel(parent=self, size=(400, 690))
        self.panel1_1.SetBackgroundColour('blue')

        self.panel2_2 = wx.Panel(parent=self,
                                 pos=wx.Point(940, 30), size=wx.Size(400, 690),
                                 style=wx.TAB_TRAVERSAL)

        self.figure = Figure()
        self.axes = self.figure.add_subplot(111)
        self.canvas = FigureCanvas(self.panel2_2, -1, self.figure)

        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(self.canvas, 0, wx.EXPAND)
        self.panel2_2.SetSizer(sizer)
        self.panel2_2.Fit()

        sizerPanels = wx.BoxSizer(wx.HORIZONTAL)
        sizerPanels.Add(self.panel1_1)
        sizerPanels.Add(self.panel2_2)
        sizerPanels.Fit(self)
        self.SetSizer(sizerPanels)

        t = arange(0.0, 3.0, 0.01)
        s = sin(2 * pi * t)
        self.axes.plot(t, s)

        self.Center()


#Every wxWidgets application must have a class derived from wxApp
class MyApp(wx.App):
# wxWidgets calls this method to initialize the application
    def OnInit(self):

        # Create an instance of our customized Frame class
        self.frame = Frame1(None)
        self.SetTopWindow(self.frame)
        self.frame.Show()
        return True


if __name__ == '__main__':
    application = MyApp(0)
    application.MainLoop()

无法将面板显示在所需位置

1 个答案: