Hi,I've finally created a small script that demonstrates a bug that I've been enduring for a long time. I haven't seen it reported before, so I may be doing something wrong. The bug is as follows: Under certain conditions, in an embedded gtk application, when selecting an area with the "Zoom to rectangle" button from the toolbar the whole graph will jump upward temporarily, corrupting the screen and making it hard to select the proper area. The attached example is an extreme version of this (the effect would be smaller for a reasonably sized combo box).
Tested on Linux (Debian Squeeze). Regards, João Luís Silva
from matplotlib.backends.backend_gtkagg import FigureCanvasGTKAgg as FigureCanvas
try:
from matplotlib.backends.backend_gtkagg import NavigationToolbar2GTKAgg as NavigationToolbar
except ImportError:
from matplotlib.backends.backend_gtk import NavigationToolbar2GTK as NavigationToolbar
print "Using alternative toolbar"
from matplotlib.figure import Figure
import numpy as np
import gtk
from widgets import Widgets
N = 1024
class Window:
def __init__(self):
self.window = gtk.Window()
self.window.connect("destroy", lambda x: gtk.main_quit())
self.window.set_size_request(640,480)
vbox1 = gtk.VBox()
self.window.add(vbox1)
vbox1.pack_start(gtk.ComboBox())
vboxPlot = gtk.VBox()
#Create the lower plot
self.fig = Figure()
self.ax = self.fig.add_subplot(111)
self.canvas = FigureCanvas(self.fig)
vboxPlot.pack_start(self.canvas)
self.toolbar = NavigationToolbar(self.canvas, self.window)
vboxPlot.pack_start(self.toolbar,False,False)
vboxPlot.show_all()
self.plot, = self.ax.plot(np.linspace(0.0,1.0,N), np.linspace(0.0,100.0,N),"b",ls='-')
vbox1.pack_start(vboxPlot)
self.window.show_all()
win = Window()
gtk.main()
<<attachment: plot_moves.png>>
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