[Matplotlib-users] (no subject)

[Jeremy O'D. <je...@o-...>]

Hi Flavio,

I expect that you've found the solution to your problem now, but just in
case, I have now published significantly improved version of the wx
embedding example in CVS.

Since Sourceforge can take some time to sort these things out, I have
included the code here.

I should also note that there has been quite a significant enhancement to
the CVS version of backend_wx committed to CVS. You may wish to use this
(although I don't think that the interface has changed anywhere.

Details of the changes have been posted to the matplotlib-devel list, or
you can see details at the top of the source file (matplotlib-devel
archiving appears to be very slow).

Regards

Jeremy

=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D=
3D=3D3D=3D3D=3D3D=3D3D

"""
Copyright (C) Jeremy O'Donoghue, 2003

License: This work is licensed under the PSF. A copy should be included
with this source code, and is also available at
http://www.python.org/psf/license.html

This is a sample showing how to embed a matplotlib figure in a wxPanel.

The example implements the full navigation toolbar, so you can automatica=
=3D
lly
inherit standard matplotlib features such as the ability to zoom, pan and
save figures in the supported formats.

There are a few small complexities worth noting in the example:

1) By default, a wxFrame can contain a toolbar (added with SetToolBar())
   but this is at the top of the frame. Matplotlib default is to put the
   controls at the bottom of the frame, so you have to manage the toolbar
   yourself. I have done this by putting the figure and toolbar into a
   sizer, but this means that you need to override GetToolBar for your
   wxFrame so that the figure manager can find the toolbar.

2) I have implemented a figure manager to look after the plots and axes.
   If you don't want a toolbar, it is simpler to add the figure directly
   and not worry. However, the figure manager looks after clipping of the
   figure contents, so you will need it if you want to navigate

3) There is a bug in the way in which my copy of wxPython calculates
   toolbar width on Win32, so there is a tricky line to ensure that the
   width of the toolbat is the same as the width of the figure.

4) Depending on the parameters you pass to the sizer, you can make the
   figure resizable or not.
"""

import matplotlib
matplotlib.use('WX')

from matplotlib.backends import Figure, Toolbar, FigureManager
from matplotlib.axes import Subplot
import Numeric as numpy

from wxPython.wx import *

class PlotFigure(wxFrame):
    def __init__(self):
        wxFrame.__init__(self, None, -1, "Test embedded wxFigure")
        self.fig =3D3D Figure(self, -1, (5,4), 75)
        self.toolbar =3D3D Toolbar(self.fig)
        self.toolbar.Realize()

                # On Windows, default frame size behaviour is incorrect
        # you don't need this under Linux
        tw, th =3D3D self.toolbar.GetSizeTuple()
        fw, fh =3D3D self.fig.GetSizeTuple()
        self.toolbar.SetSize(wxSize(fw, th))

        # Create a figure manager to manage things
        self.figmgr =3D3D FigureManager(self.fig, 1, self)

        # Now put all into a sizer
        sizer =3D3D wxBoxSizer(wxVERTICAL)
                # This way of adding to sizer prevents resizing
        #sizer.Add(self.fig, 0, wxLEFT|wxTOP)

                # This way of adding to sizer allows resizing
        sizer.Add(self.fig, 1, wxLEFT|wxTOP|wxGROW)

                # Best to allow the toolbar to resize!
        sizer.Add(self.toolbar, 0, wxGROW)
        self.SetSizer(sizer)
        self.Fit()

    def plot_data(self):
        # Use ths line if using a toolbar
        a =3D3D self.figmgr.add_subplot(111)

        # Or this one if there is no toolbar
        #a =3D3D Subplot(self.fig, 111)

        t =3D3D numpy.arange(0.0,3.0,0.01)
        s =3D3D numpy.sin(2*numpy.pi*t)
        c =3D3D numpy.cos(2*numpy.pi*t)
        a.plot(t,s)
        a.plot(t,c)
        self.toolbar.update()

    def GetToolBar(self):
        # You will need to override GetToolBar if you are using an
        # unmanaged toolbar in your frame
        return self.toolbar

if __name__ =3D3D=3D3D '__main__':
    app =3D3D wxPySimpleApp()
    frame =3D3D PlotFigure()
    frame.plot_data()
    frame.Show()
    app.MainLoop()