Thank you, Alan. I started by adding a method called addPoints() to my
class as you recommend. But now I don't know how to pass a list of points
to the addPoints() method. Here's the relevant code, adding in your
suggestions:
class PlotPanel(wx.lib.plot.PlotCanvas):
def __init__(self, points=[], *args, **kwargs):
wx.lib.plot.PlotCanvas.__init__(self, *args, **kwargs)
self.points = points
self.Draw(self._drawGraph())
self.SetEnableDrag(True)
#self.SetEnableGrid(True)
def addPoints(self, points):
self.points += points
def _drawGraph(self):
m=[]
m.append(wx.lib.plot.PolyLine(self.points))
m.append(wx.lib.plot.PolyMarker(self.points))
return wx.lib.plot.PlotGraphics(m, "Title)",
"x axis", "")
#this button tells it to make a graph using "mypoints".
def OnGraphButton(self, event):
mypoints = [(3,4), (5,6)] #these to be used
in the plot
PlotPanel.addPoints(PlotPanel,mypoints)
self.notebook1.AddPage(imageId=-1, page=PlotPanel(self.notebook1),
select=True,
text='Weight')
The error I get using it this way is:
TypeError: unbound method addPoints() must be called with PlotPanel
instance as first argument (got type instance instead)
I'm lost. Also, what does "self.points += points" mean? What is the +=
operator?
Thanks,
Che
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