Merge pull request matplotlib#5203 from cgohlke/patch-15

Fix mathtext_wx example not redrawing plots

Author: mdboom

examples/user_interfaces/mathtext_wx.py

@@ -43,10 +43,11 @@ def __init__(self, parent, title):
 
         self.figure = Figure()
         self.axes = self.figure.add_subplot(111)
-        self.change_plot(0)
 
         self.canvas = FigureCanvas(self, -1, self.figure)
 
+        self.change_plot(0)
+
         self.sizer = wx.BoxSizer(wx.VERTICAL)
         self.add_buttonbar()
         self.sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.GROW)
@@ -106,7 +107,7 @@ def change_plot(self, plot_number):
         s = functions[plot_number][1](t)
         self.axes.clear()
         self.axes.plot(t, s)
-        self.Refresh()
+        self.canvas.draw()
 
 
 class MyApp(wx.App):