Embedding Matplotlib in wxpython wx.Panel problem

abakshi11 abakshi11 at gmail.com
Tue Jul 10 21:09:15 CEST 2007


I was wondering if you ever got to create a small GUI program that did plots
using Matplotlib
I am gettin an error where its saying "WXagg's accelerator requires the
wxPython headers-the wxpython header files can not be located in any of the
standard include directories reported by 'wx-config --cppflags'
Do you think you can help?



Soren-3 wrote:
> 
> Hi,
> 
> I'm trying to create a small GUI program where I can do plots using
> Matplotlib. I've been trying to borrow code from the examples at the
> matplotlib website, but I can't get it to work.
> 
> I want to be able to create a wx.Panel that contains an axis for
> plotting. Around it i want other panels containing various settings,
> buttons etc. to control the plot. So far I can't even get the program
> to actually show a plot in a panel.
> 
> Does anyone here have experience in making a wxpython GUI with
> matplotlib?
> 
> Any help would be appreciated!
> 
> Thanks,
> Soren
> 
> My code shows a frame, and I'm trying to set up two panels.. one with
> a plot and one with a button.. The plotpanel is just a little square
> in the corner when I run it.. ???
> 
> My code is as follows:
> 
> import wx
> import pylab
> from matplotlib.numerix import arange, sin, cos, pi
> import matplotlib
> 
> matplotlib.use('WXAgg')
> from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg
> from matplotlib.backends.backend_wx import NavigationToolbar2Wx
> from matplotlib.figure import Figure
> matplotlib.interactive(False)
> 
> class App(wx.App):
> 
>     def OnInit(self):
>         self.frame = MainFrame("Autoplotter", (50,60), (700,700))
>         self.frame.Show()
> 
>         return True
> 
> class MainFrame(wx.Frame):
> 
>     def __init__(self, title, pos, size):
>         wx.Frame.__init__(self, None, -1, title, pos, size)
> 
>         pPanel = PlotPanel(self, -1)            # Plot panel
> 
>         bPanel = ButtonPanel(self, 100,500, (200,100))    # button
> panel
> 
>         sizer = wx.BoxSizer(wx.VERTICAL)
> 
>         sizer.Add(pPanel,0)
>         sizer.Add(bPanel,0)
> 
>         self.SetSizer(sizer)
> 
> class ButtonPanel(wx.Panel):
> 
>     def __init__(self, Parent, xPos, yPos, insize):
> 
>         pos = (xPos, yPos)
>         wx.Panel.__init__(self, Parent, -1, pos, style =
> wx.RAISED_BORDER, size = insize)
> 
>         button = wx.Button(self, -1, 'HELLO!!', (10,10), (150,50))
> 
> class NoRepaintCanvas(FigureCanvasWxAgg):
>     """We subclass FigureCanvasWxAgg, overriding the _onPaint method,
> so that
>     the draw method is only called for the first two paint events.
> After that,
>     the canvas will only be redrawn when it is resized.
>     """
>     def __init__(self, *args, **kwargs):
>         FigureCanvasWxAgg.__init__(self, *args, **kwargs)
>         self._drawn = 0
> 
>     def _onPaint(self, evt):
>         """
>         Called when wxPaintEvt is generated
>         """
>         if not self._isRealized:
>             self.realize()
> 
>         if self._drawn < 2:
>             self.draw(repaint = False)
>             self._drawn += 1
> 
>         self.gui_repaint(drawDC=wx.PaintDC(self))
> 
> 
> class PlotPanel(wx.Panel):
> 
>     def __init__(self, parent, id = -1, color = None,\
>                  dpi = None, style = wx.NO_FULL_REPAINT_ON_RESIZE,
> **kwargs):
> 
>         wx.Panel.__init__(self, parent, id = id, style = style,
> **kwargs)
> 
>         self.figure = Figure(None, dpi)
>         self.canvas = NoRepaintCanvas(self, -1, self.figure)
>         self._resizeflag = True
> 
>         self.Bind(wx.EVT_IDLE, self._onIdle)
>         self.Bind(wx.EVT_SIZE, self._onSize)
> 
>         self._SetSize()
> 
>     def draw(self):                           # just draw something!
>         if not hasattr(self, 'subplot'):
>             self.subplot = self.figure.add_subplot(111)
>             theta = arange(0, 45*2*pi, 0.02)
>             rad = (0.8*theta/(2*pi)+1)
>             r = rad*(8 + sin(theta*7+rad/1.8))
>             x = r*cos(theta)
>             y = r*sin(theta)
>             #Now draw it
>             self.subplot.plot(x,y, '-r')
> 
>     def _onSize(self, event):
>         self._resizeflag = True
> 
>     def _onIdle(self, evt):
>          if self._resizeflag:
>              self._resizeflag = False
>              self._SetSize()
>              self.draw()
> 
>     def _SetSize(self, pixels = None):
>         """
>         This method can be called to force the Plot to be a desired
> size, which defaults to
>         the ClientSize of the panel
>         """
>         if not pixels:
>             pixels = self.GetClientSize()
>         self.canvas.SetSize(pixels)
>         self.figure.set_figsize_inches(pixels[0]/
> self.figure.get_dpi(),
>         pixels[1]/self.figure.get_dpi())
> 
> 
> if __name__ == "__main__":
> 
>     app = App(0)
>     app.MainLoop()
> 
> -- 
> http://mail.python.org/mailman/listinfo/python-list
> 
> 

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