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old_animation example code: dynamic_image_wxagg2.pyΒΆ

[source code]

#!/usr/bin/env python
Copyright (C) 2003-2005 Jeremy O'Donoghue and others

License: This work is licensed under the PSF. A copy should be included
with this source code, and is also available at

import sys, time, os, gc

import matplotlib

from matplotlib import rcParams
import numpy as npy

import as cm

from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg
from matplotlib.backends.backend_wx import NavigationToolbar2Wx

from matplotlib.figure import Figure
from wx import *

TIMER_ID = NewId()

class PlotFigure(Frame):

    def __init__(self):
        Frame.__init__(self, None, -1, "Test embedded wxFigure")

        self.fig = Figure((5,4), 75)
        self.canvas = FigureCanvasWxAgg(self, -1, self.fig)
        self.toolbar = NavigationToolbar2Wx(self.canvas)

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

        # Create a figure manager to manage things

        # Now put all into a sizer
        sizer = BoxSizer(VERTICAL)
        # This way of adding to sizer allows resizing
        sizer.Add(self.canvas, 1, LEFT|TOP|GROW)
        # Best to allow the toolbar to resize!
        sizer.Add(self.toolbar, 0, GROW)
        EVT_TIMER(self, TIMER_ID, self.onTimer)

    def init_plot_data(self):
        # jdh you can add a subplot directly from the fig rather than
        # the fig manager
        a = self.fig.add_axes([0.075,0.1,0.75,0.85])
        cax = self.fig.add_axes([0.85,0.1,0.075,0.85])
        self.x = npy.empty((120,120))
        self.x.flat = npy.arange(120.0)*2*npy.pi/120.0
        self.y = npy.empty((120,120))
        self.y.flat = npy.arange(120.0)*2*npy.pi/100.0
        self.y = npy.transpose(self.y)
        z = npy.sin(self.x) + npy.cos(self.y) = a.imshow( z, cmap=cm.jet)#, interpolation='nearest')

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

    def onTimer(self, evt):
        self.x += npy.pi/15
        self.y += npy.pi/20
        z = npy.sin(self.x) + npy.cos(self.y)
        #self.canvas.gui_repaint()  # jdh wxagg_draw calls this already

    def onEraseBackground(self, evt):
        # this is supposed to prevent redraw flicker on some X servers...

if __name__ == '__main__':
    app = PySimpleApp()
    frame = PlotFigure()

    # Initialise the timer - wxPython requires this to be connected to
    # the receiving event handler
    t = Timer(frame, TIMER_ID)


Keywords: python, matplotlib, pylab, example, codex (see Search examples)