custom navigation toolbar

Hello all

I'm trying to add a custom button in the navigation toolbar for a wx app.

so far, I can add the button, but can't get it to work. here is a
snippet of the code (the classes are in the same file):

#custom matplotlib navigation toolbar
#from: http://www.nabble.com/Re%3A-Navigation-toolbar-w-o-subplot-configuration-button-p18754379.html
class VMToolbar(NavigationToolbar2WxAgg):

    def __init__(self, plotCanvas):
        NavigationToolbar2WxAgg.__init__(self, plotCanvas)

        self.SetToolBitmapSize(wx.Size(12,12))

        app_ico = application.getBitmap()
        drawButtonNT = self.AddLabelTool(-1, 'Plot', app_ico,
wx.NullBitmap, wx.ITEM_NORMAL,'Draw/Clear Stereonet')

        # delete unwanted tools
        self.DeleteToolByPos(6) # Configure subplots
        self.DeleteToolByPos(3) # Pan

        self.Bind(wx.EVT_TOOL, StereoPanel.PlotStereonett, drawButtonNT)

class StereoPanel(wx.Panel):
    """class for the second page of the notebook """
    def __init__(self, parent):
        wx.Panel.__init__(self, parent, style=wx.BORDER_SUNKEN)

#... some code

#creates / redraws the stereonet
    def PlotStereonett(self, event):
        """Create the Stereonet """
        axes = self.plotaxes
        print 'it works!!'

This gives me this error:
TypeError: unbound method PlotStereonett() must be called with
StereoPanel instance as first argument (got CommandEvent instance
instead)

TIA

Carlos

···

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Carlos Henrique Grohmann - Geologist D.Sc.
a.k.a. Guano - Linux User #89721
ResearcherID: A-9030-2008
carlos dot grohmann at gmail dot com
http://www.igc.usp.br/pessoais/guano/
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