Add sample of PlotCanvas usage

samples/simple/plotcanvas.py

@@ -0,0 +1,41 @@
+# A PlotCanvas is a Subclass of a wx.Panel which holds two scrollbars and the
+# actual plotting zoom canvas (self.canvas). It allows for simple general
+# plotting of data with zo om, labels, and automatic axis scaling.
+
+import wx
+import wx.lib.plot as plot
+
+
+class MyFrame(wx.Frame):
+
+    def __init__(self, parent, title):
+        super().__init__(parent, title=title, size=(600, 400))
+
+        # Create a PlotCanvas instance
+        self.plot_canvas = plot.PlotCanvas(self)
+
+        # Define some sample data
+        data1 = [(1, 2), (2, 5), (3, 4), (4, 7), (5, 6)]
+        data2 = [(1, 1), (2, 3), (3, 6), (4, 5), (5, 8)]
+
+        # Create PolyLine objects for the data
+        line1 = plot.PolyLine(data1, colour='blue', width=2, legend='Line 1')
+        line2 = plot.PolyLine(data2, colour='red', width=2, legend='Line 2')
+
+        # Create a PlotGraphics object to hold the lines and define labels
+        graphics = plot.PlotGraphics([line1, line2],
+                                     "Sample Plot",
+                                     "X-axis Label",
+                                     "Y-axis Label")
+
+        # Draw the plot on the canvas
+        self.plot_canvas.Draw(graphics)
+
+        self.Centre()
+        self.Show()
+
+
+if __name__ == '__main__':
+    app = wx.App()
+    frame = MyFrame(None, "PlotCanvas Demo")
+    app.MainLoop()