I have an app which adds data to a plot. Everything is working, but
when I add data to a plot that was zoomed in, it switches the display
to a zoomed out view.
Here's a code snippet:
class MyPlotFrame(Frame):
def __init__(self):
Frame.__init__(self,None,-1,
'My Super Frame',size=(550,350))
self.SetBackgroundColour(NamedColor("WHITE"))
self.figure = Figure()
self.axes = self.figure.add_subplot(111)
t = arange(0.0,3.0,0.01)
s = sin(2*pi*t)
self.axes.plot(t,s)
self.axes.grid()
self.canvas = FigureCanvas(self, -1, self.figure)
self.sizer = BoxSizer(VERTICAL)
self.sizer.Add(self.canvas, 1, LEFT | TOP | GROW)
self.SetSizer(self.sizer)
self.Fit()
self.add_toolbar() # comment this out for no toolbar
def addData(self, xdata, ydata):
# Need to save off current zoom level before adding new plot data
# But don't know how
self.axes.plot(xdata, ydata)
# Restore view here, then redraw
self.canvas.draw()
def add_toolbar(self):
self.toolbar = NavigationToolbar2Wx(self.canvas)
self.toolbar.Realize()
# Snipped some stuff for checking if on a Mac or Windows
self.toolbar.update()
def OnPaint(self, event):
self.canvas.draw()
I can't find any examples or docs on maintaining my zoom of the plot.
In matlab, I know how to do this, but I'm not sure what to do here.
Can someone please advise?
Thanks,
Aaron R>
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