在 wxpython 中对齐

Question

我正在尝试在 wx 框架中对齐复选框和 matplotlib canvas。

我需要这些复选框在左侧对齐，canvas 在右侧对齐
下面的代码没有正确对齐它们

有人可以建议需要对代码进行更改吗？

如果我想在同一帧中再添加一个canvas，我该如何添加？

import wx
import matplotlib.pyplot as plt
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas

class canvasFrame(wx.Frame):
    def __init__(self,parent,id):
        wx.Frame.__init__(self,parent,id,"MyCanvas",size =(1200,400))

        self.fig = plt.Figure(figsize=(15,5))
        self.ax1 = self.fig.add_subplot(1,1,1)
        self.canvas = FigureCanvas(self, -1, self.fig)

        b1 = wx.CheckBox(self,-1,"Apples",(10,20),(160,-1))
        b2 = wx.CheckBox(self,-1,"Mango",(10,40),(160,-1))

        b1sizer = wx.BoxSizer(wx.VERTICAL)
        b2sizer = wx.BoxSizer(wx.VERTICAL)
        canvSizer = wx.BoxSizer(wx.HORIZONTAL)

        b1sizer.Add(b1,0,wx.ALL,5)
        b2sizer.Add(b2,0,wx.ALL,5)
        canvSizer.Add(self.canvas,wx.TOP | wx.EXPAND,5)

if __name__ == "__main__":
   app = wx.App()
   frame = canvasFrame(parent=None,id = -1)
   frame.Show()
   app.MainLoop()

Answer 1

您遗漏了很多关于 sizer 工作原理的部分......我真的建议重新访问文档并在谷歌上搜索教程

class canvasFrame(wx.Frame):
    def __init__(self,parent,id):
        wx.Frame.__init__(self,parent,id,"MyCanvas",size =(1200,400))

        self.fig = plt.Figure(figsize=(15,5))
        self.ax1 = self.fig.add_subplot(1,1,1)
        self.canvas = FigureCanvas(self, -1, self.fig)

        b1 = wx.CheckBox(self,-1,"Apples",(10,20),(160,-1))
        b2 = wx.CheckBox(self,-1,"Mango",(10,40),(160,-1))
        # first create your sizer for your checkboxes
        checkbox_sizer = wx.BoxSizer(wx.VERTICAL)
        checkbox_sizer.AddMany([b1,b2]) # add both buttons to the sizer
        #next create the main sizer
        main_sizer = wx.BoxSizer(wx.HORIZONTAL)
        #add the checkbox sizer to the main_sizer
        main_sizer.Add(checkbox_sizer)
        # add the canvas to the main sizer
        main_sizer.Add(self.canvas)
        #Set the sizer as the sizer for the frame
        self.SetSizer(main_sizer)
        #call layout for the sizers to layout their elements
        self.Layout()
        #call fit to make the frame fit its contents
        self.Fit()

Answer 2

您使用的 sizer 不正确，请尝试以下操作：

import wx
import matplotlib.pyplot as plt
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas

class canvasFrame(wx.Frame):
    def __init__(self,parent,id):
        wx.Frame.__init__(self,parent,id,"MyCanvas",size =(1200,400))

        self.fig = plt.Figure(figsize=(15,5))
        self.ax1 = self.fig.add_subplot(1,1,1)
        self.canvas = FigureCanvas(self, -1, self.fig)

        b1 = wx.CheckBox(self,-1,"Apples", size=(160,-1))
        b2 = wx.CheckBox(self,-1,"Mango", size=(160,-1))

        mainsizer = wx.BoxSizer(wx.HORIZONTAL) # Main sizer
        cbsizer = wx.BoxSizer(wx.VERTICAL) # Checkbox sizer
        canvassizer = wx.BoxSizer(wx.VERTICAL) # Canvas sizer

        # Add checkbox 
        cbsizer.Add(b1, 0, wx.ALIGN_LEFT|wx.ALL, 5)
        cbsizer.Add(b2, 0, wx.ALIGN_LEFT|wx.ALL, 5)

        # Add canvas
        canvassizer.Add(self.canvas, 1, wx.EXPAND|wx.ALL, 1)

        # Add "secondary" sizers to main sizer
        mainsizer.Add(cbsizer, 1, wx.EXPAND|wx.ALL, 2)
        mainsizer.Add(canvassizer, 3, wx.EXPAND|wx.ALL, 2)

        self.SetSizer(mainsizer)


if __name__ == "__main__":
   app = wx.App()
   frame = canvasFrame(parent=None,id = -1)
   frame.Show()
   app.MainLoop()

现在，关于最后一个问题，我认为你会添加一个子图（轴）而不是其他 canvas，即

self.fig = plt.Figure(figsize=(15,5))
self.ax1 = self.fig.add_subplot(1,2,1)
self.ax2 = self.fig.add_subplot(1,2,2)
self.canvas = FigureCanvas(self, -1, self.fig)

在 wxpython 中对齐

Aligning in wxpython

python

wxpython

matplotlib