在WxPython面板中嵌入一个matplotlib图形

Question

如何在WxPython面板中嵌入matplotlib图形对象？

我在Google上搜索并看到一些涉及交互式图形和其他额外内容的复杂示例。有人能提供一个最小化的示例吗？

- Jesvin Jose

Answer 1

这是一个带有matplotlib画布的面板的最简单示例：

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

from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.backends.backend_wx import NavigationToolbar2Wx
from matplotlib.figure import Figure

import wx

class CanvasPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        self.figure = Figure()
        self.axes = self.figure.add_subplot(111)
        self.canvas = FigureCanvas(self, -1, self.figure)
        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.GROW)
        self.SetSizer(self.sizer)
        self.Fit()

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


if __name__ == "__main__":
    app = wx.PySimpleApp()
    fr = wx.Frame(None, title='test')
    panel = CanvasPanel(fr)
    panel.draw()
    fr.Show()
    app.MainLoop()

- joaquin

---

嘿，你能写一个选项来设置画布的大小吗？ - Jesvin Jose

Answer 2

定义帧大小：

if __name__ == "__main__":
    app = wx.App()
    fr = wx.Frame(None, title='test', size=wx.Size(806, 450))
    panel = CanvasPanel(fr)
    panel.draw()
    fr.Show()
    app.MainLoop()

或者定义面板大小:

class CanvasPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent,size=wx.Size(806, 450))
...

- QCandia