Script... import wx import wx.aui import matplotlib as mpl from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as Canvas
class Class1(wx.Panel): def __init__(self, parent, id = -1, dpi = None, **kwargs): wx.Panel.__init__(self, parent, id=id, **kwargs) self.figure = mpl.figure.Figure(dpi=dpi, figsize=(2,2)) self.canvas = Canvas(self, -1, self.figure) sizer = wx.BoxSizer(wx.VERTICAL) sizer.Add(self.canvas,1,wx.EXPAND) test_button = wx.Button(self, wx.ID_ANY, 'Test') sizer.Add(test_button) self.SetSizer(sizer) self.Bind(wx.EVT_BUTTON, self.OnTest, id=wx.ID_ANY) # This doesn't work #app.frame.graph_panel.plot([1,2,3,4,5],[3,4,3,4,3]) #app.frame.graph_panel.figure.canvas.draw() def OnTest(self, event): # This works app.frame.graph_panel.plot([1,2,3,4,5],[3,4,3,4,3]) app.frame.graph_panel.figure.canvas.draw() class Tab(wx.Panel): def __init__(self, parent, id = -1): wx.Panel.__init__(self, parent, id=id) self.nb = wx.aui.AuiNotebook(self) sizer = wx.BoxSizer() sizer.Add(self.nb, 1, wx.EXPAND) self.SetSizer(sizer) def add_axes(self,name="plot"): page = Class1(self.nb) self.nb.AddPage(page,name) return page.figure class MyFrame(wx.Frame): def __init__(self, parent, id, title): wx.Frame.__init__(self, parent, id, title, wx.DefaultPosition, wx.Size(1000, 800)) tab_panel = Tab(self) self.graph_panel = tab_panel.add_axes('Graph').gca() self.graph_panel.plot([1,2,3,4,5],[2,1,4,2,3]) class MyApp(wx.App): def OnInit(self): self.frame = MyFrame(None, -1, 'App') self.frame.Show(True) return True app = MyApp(0) app.MainLoop() On Mon, Jan 23, 2012 at 3:22 PM, Jonno <jonnojohn...@gmail.com> wrote: > > > On Mon, Jan 23, 2012 at 2:25 PM, Terry Reedy <tjre...@udel.edu> wrote: > >> On 1/23/2012 2:44 PM, Jonno wrote: >> >>> I have a pretty complicated bit of code that I'm trying to convert to >>> more clean OOP. >>> >>> Without getting too heavy into the details I have an object which I am >>> trying to make available inside another class. The reference to the >>> object is rather long and convoluted but what I find is that within my >>> class definition this works: >>> >>> class Class1: >>> def __init__(self): >>> >>> def method1(self): >>> foo.bar.object >>> >>> But this tells me "global name foo is not defined": >>> >>> class Class1: >>> def __init__(self): >>> foo.bar.object >>> >>> Obviously I want the object to be available throughout the class (I left >>> out the self.object = etc for simplicity). >>> >> >> Perhaps you left out some relevant details. >> >> I'm sure I did. Part of the reason I'm not posting the whole code is that > I'm trying to teach myself OOP as part of this process. I want to figure > out what is wrong as much as possible by myself. I really appreciate the > pointers and suggestions though. > > >> >> Any ideas why I can reference foo inside the method but not in __init__? >>> >> >> References inside functions are resolved when the function is called. So >> purely from what you have presented above, it would seem that 'foo' is >> defined between the call to __init__ and a later call to method1. > > > I have a strong suspicion that this is what's happening. > > Method1 is called on a button push when MainLoop is running so obviously > foo (the main wx.App) exists by then. > I must have somehow be initializing Class1 before foo = MyApp() happens. > Is there a good reference on the order that things happen in python when a > single script is run? > > In the meantime here is my stripped down script (foo = app, bar = frame, > object = graph_panel). I'd welcome all suggestions to reorganize it. > > >
-- http://mail.python.org/mailman/listinfo/python-list