WX and Boa Constructor

Hi all,

I've been looking at matplotlib, as I'm using wxPyPlot and want a bit more...

Q1: Has anyone used matplotlib with Boa, and, as a Plug-in?

Q2: In the code below, (and with/from the example) I'm trying to simply display a plot, no toolbar, sizer etc.
The canvas appears on the panel, but no plot appears. What am I missing?

Python 2.2
WX 2.4





from wxPython.wx import *
from wxPyPlot.wxPyPlot import PlotCanvas

import numarray

import matplotlib
from matplotlib.backends.backend_wx import FigureCanvasWx
from matplotlib.figure import Figure
from matplotlib.axes import Subplot

def create(parent):
     return wxFrame1(parent)

] = map(lambda _init_ctrls: wxNewId(), range(2))

class wxFrame1(wxFrame):
     def _init_ctrls(self, prnt):
         # generated method, don't edit
         wxFrame.__init__(self, id=wxID_WXFRAME1, name='', parent=prnt,
               pos=wxPoint(0, 0), size=wxSize(406, 341),
               style=wxDEFAULT_FRAME_STYLE, title="Test embedded wxFigure")

         self.panel1 = wxPanel(id=wxID_WXFRAME1PANEL1, name='panel1',
               parent=self, pos=wxPoint(0, 0), size=wxSize(398, 314),

     def __init__(self, parent):
         self.fig = Figure((5,4), 75)
         self.canvas = FigureCanvasWx(self.panel1, -1, self.fig)

     def plot_data(self):
         a = Subplot(self.fig, 111)

         t = numarray.arange(0.0,3.0,0.01)
         s = numarray.sin(2*numarray.pi*t)
         c = numarray.cos(2*numarray.pi*t)