how to combine wxPython, matplotlib and Pyopengl

Question

This code needs polishing but it works.

import wx
import sys
from wx import glcanvas
from OpenGL.GL import *
from OpenGL.GLUT import *

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

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)

class MyCanvasBase(glcanvas.GLCanvas):
    def __init__(self, parent):
        glcanvas.GLCanvas.__init__(self, parent, -1)
        self.init = False
        self.context = glcanvas.GLContext(self)

        # initial mouse position
        self.lastx = self.x = 30
        self.lasty = self.y = 30
        self.size = None
        self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground)
        self.Bind(wx.EVT_SIZE, self.OnSize)
        self.Bind(wx.EVT_PAINT, self.OnPaint)
        self.Bind(wx.EVT_LEFT_DOWN, self.OnMouseDown)
        self.Bind(wx.EVT_LEFT_UP, self.OnMouseUp)
        self.Bind(wx.EVT_MOTION, self.OnMouseMotion)

    def OnEraseBackground(self, event):
        pass # Do nothing, to avoid flashing on MSW.

    def OnSize(self, event):
        wx.CallAfter(self.DoSetViewport)
        event.Skip()

    def DoSetViewport(self):
        size = self.size = self.GetClientSize()
        self.SetCurrent(self.context)
        glViewport(0, 0, size.width, size.height)

    def OnPaint(self, event):
        dc = wx.PaintDC(self)
        self.SetCurrent(self.context)
        if not self.init:
            self.InitGL()
            self.init = True
        self.OnDraw()

    def OnMouseDown(self, evt):
        self.CaptureMouse()
        self.x, self.y = self.lastx, self.lasty = evt.GetPosition()

    def OnMouseUp(self, evt):
        self.ReleaseMouse()

    def OnMouseMotion(self, evt):
        if evt.Dragging() and evt.LeftIsDown():
            self.lastx, self.lasty = self.x, self.y
            self.x, self.y = evt.GetPosition()
            self.Refresh(False)

class CubeCanvas(MyCanvasBase):
    def InitGL(self):
        # set viewing projection
        glMatrixMode(GL_PROJECTION)
        glFrustum(-0.5, 0.5, -0.5, 0.5, 1.0, 3.0)

        # position viewer
        glMatrixMode(GL_MODELVIEW)
        glTranslatef(0.0, 0.0, -2.0)

        # position object
        glRotatef(self.y, 1.0, 0.0, 0.0)
        glRotatef(self.x, 0.0, 1.0, 0.0)

        glEnable(GL_DEPTH_TEST)
        glEnable(GL_LIGHTING)
        glEnable(GL_LIGHT0)

    def OnDraw(self):
        # clear color and depth buffers
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)

        # draw six faces of a cube
        glBegin(GL_QUADS)
        glNormal3f( 0.0, 0.0, 1.0)
        glVertex3f( 0.5, 0.5, 0.5)
        glVertex3f(-0.5, 0.5, 0.5)
        glVertex3f(-0.5,-0.5, 0.5)
        glVertex3f( 0.5,-0.5, 0.5)

        glNormal3f( 0.0, 0.0,-1.0)
        glVertex3f(-0.5,-0.5,-0.5)
        glVertex3f(-0.5, 0.5,-0.5)
        glVertex3f( 0.5, 0.5,-0.5)
        glVertex3f( 0.5,-0.5,-0.5)

        glNormal3f( 0.0, 1.0, 0.0)
        glVertex3f( 0.5, 0.5, 0.5)
        glVertex3f( 0.5, 0.5,-0.5)
        glVertex3f(-0.5, 0.5,-0.5)
        glVertex3f(-0.5, 0.5, 0.5)

        glNormal3f( 0.0,-1.0, 0.0)
        glVertex3f(-0.5,-0.5,-0.5)
        glVertex3f( 0.5,-0.5,-0.5)
        glVertex3f( 0.5,-0.5, 0.5)
        glVertex3f(-0.5,-0.5, 0.5)

        glNormal3f( 1.0, 0.0, 0.0)
        glVertex3f( 0.5, 0.5, 0.5)
        glVertex3f( 0.5,-0.5, 0.5)
        glVertex3f( 0.5,-0.5,-0.5)
        glVertex3f( 0.5, 0.5,-0.5)

        glNormal3f(-1.0, 0.0, 0.0)
        glVertex3f(-0.5,-0.5,-0.5)
        glVertex3f(-0.5,-0.5, 0.5)
        glVertex3f(-0.5, 0.5, 0.5)
        glVertex3f(-0.5, 0.5,-0.5)
        glEnd()

        if self.size is None:
            self.size = self.GetClientSize()
        w, h = self.size
        w = max(w, 1.0)
        h = max(h, 1.0)
        xScale = 180.0 / w
        yScale = 180.0 / h
        glRotatef((self.y - self.lasty) * yScale, 1.0, 0.0, 0.0);
        glRotatef((self.x - self.lastx) * xScale, 0.0, 1.0, 0.0);

        self.SwapBuffers()

#----------------------------------------------------------------------
class RunDemoApp(wx.App):
    def __init__(self):
        wx.App.__init__(self, redirect=False)

    def OnInit(self):
        canvasClass = eval('CubeCanvas')

        cx = 0

        frame = wx.Frame(None, -1, 'CubeCanvas', size=(400,400), pos=(cx,400))

        # adding panel with sizer for both canvas
        panel = wx.Panel(frame, -1)

        self.sizer = wx.BoxSizer(wx.HORIZONTAL)

        # adding first canvas
        canvas1 = canvasClass(panel) # CubeCanvas(frame) or ConeCanvas(frame); frame passed to         MyCanvasBase
        self.sizer.Add(canvas1, 1, wx.LEFT | wx.TOP | wx.GROW)

        # adding second canvas
        self.canvas = CanvasPanel(panel)
        self.sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.GROW)

        panel.SetSizer(self.sizer)
        panel.Fit()

        frame.Show(True)

        self.frame = frame
        return True

    def OnExitApp(self, evt):
        self.frame.Close(True)

    def OnCloseFrame(self, evt):
        if hasattr(self, "window") and hasattr(self.window, "ShutdownDemo"):
            self.window.ShutdownDemo()
        evt.Skip()

app = RunDemoApp()
app.MainLoop()