Re: [Matplotlib-users] Setting Figure = Figure possible?

[Jae-Joon L. <lee...@gm...>]

I guess you need to update the canvas itself, but there could be more
things to do.

My recommendation is not to switch figure, but to switch axes (or just
contours).
You may create several axes in a same figure and make them invisible
(or temporarily remove them from the figure) except the one you want.

Regards,

-JJ



On Tue, Oct 20, 2009 at 9:15 PM, Jason Kenney <jas...@gm...> wrote:
>
> I'm new to matplotlib and python GUIs in general, so I apologize if I'm
> missing something fundamental in my understanding of the matplotlib canvas -
> figure - etc model.  That said...
>
> I'm working on a small matplotlib app using PyQT4.  It involves selecting an
> arbitrary number of data files and breaking each down into a group of 6
> contour subplots.  I want to be able to switch between contour plots from
> each data set quickly to compare and contrast, so my thought was to
> front-load the data analysis and figure creation and store them, then update
> the displayed figure with a stored figure.  I am not able to get the stored
> figures to display though.
>
> In attempt to debug/understand what's going on, I have the following:
>
> class InputWindow (QtGui.QWidget):
>  def __init__ (self, parent=None):
> ...
>    self.dpi = 100
>    self.fig = Figure((9.0, 6.0), dpi=self.dpi)
>    self.canvas = FigureCanvas(self.fig)
>
>    self.vbox = QtGui.QVBoxLayout()
>    self.vbox.addLayout (grid)
>    self.vbox.addLayout (self.hbox_pbs)
>    self.vbox.addWidget (self.canvas)
>    self.vbox.addStretch (1)
>    self.setLayout (self.vbox)
>    self.resize (900, 600)
>    self.fig.add_subplot(111, aspect='equal')
> ...
>
> This works fine and creates an empty plot.  I can clear this figure with
> self.fig.clear() and add subplots to it with self.fig.add_subplot upon
> pushing a button in the UI.  What I can't do is something like this:
>
>  def Process (self):
>    self.fig.clear()
>    fig2 = Figure((9.0, 6.0), dpi=self.dpi)
>    fig2.add_subplot(211, aspect='equal')
>    self.fig = fig2
>    self.canvas.draw()
>
> This will clear the figure, but it doesn't update with the contents of fig2.
> If I look at the properties of self.fig, they match those of fig2 though.
> Any help on what I need to do to get something like self.fig = fig2 working?
>
> Thanks,
>
> J
> --
> View this message in context: http://www.nabble.com/Setting-Figure-%3D-Figure-possible--tp25985129p25985129.html
> Sent from the matplotlib - users mailing list archive at Nabble.com.
>
>
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