Right now I use a customized FigureCanvasTkAgg and overwrite the draw() and
resize() methods to reset the z-order of the axes before drawing / resizing
the figure and to restore the desired z-order afterwards. This works quite
well but it would be nice to have the picking work like in version <=0.99.3.
-----------------------
import matplotlib
matplotlib.use('TkAgg')
from numpy import arange, sin, pi, cos
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg,
NavigationToolbar2TkAgg
from matplotlib.figure import Figure
import Tkinter as Tk
root = Tk.Tk()
f = Figure(figsize=(5,4), dpi=100)
ax0 = f.add_subplot(111)
ax1 = ax0.twinx()
t = arange(0.0,3.0,0.01)
s1 = sin(2*pi*t)
s2 = 2*cos(2*pi*t)
ax0.plot(t,s1,color='red', picker=True)
ax1.plot(t,s2,picker=True)
ax0.my_zorder=0
ax1.my_zorder=0.1
class MyFigureCanvasTkAgg(FigureCanvasTkAgg):
def draw(self):
ax0 = self.figure.axes[0]
ax1 = self.figure.axes[1]
ax0.set_zorder(0)
ax1.set_zorder(0)
FigureCanvasTkAgg.draw(self)
ax0.set_zorder(ax0.my_zorder)
ax1.set_zorder(ax1.my_zorder)
def resize(self, event):
ax0 = self.figure.axes[0]
ax1 = self.figure.axes[1]
ax0.set_zorder(0)
ax1.set_zorder(0)
FigureCanvasTkAgg.resize(self, event)
ax0.set_zorder(ax0.my_zorder)
ax1.set_zorder(ax1.my_zorder)
def pick_cb(event):
if event.artist.get_lw() > 1:
event.artist.set_lw(1)
else:
event.artist.set_lw(3)
f.canvas.draw()
def toggle():
if ax0.my_zorder == 0:
ax0.my_zorder=0.1
ax1.my_zorder=0
else:
ax0.my_zorder=0
ax1.my_zorder=0.1
ax0.set_zorder(ax0.my_zorder)
ax1.set_zorder(ax1.my_zorder)
canvas = MyFigureCanvasTkAgg(f, master=root)
canvas.show()
canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
toolbar = NavigationToolbar2TkAgg(canvas, root)
toolbar.update()
canvas._tkcanvas.pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
canvas.mpl_connect('pick_event', pick_cb)
button = Tk.Button(master=root, text='Toggle', command=toggle)
button.pack(side=Tk.BOTTOM)
Tk.mainloop()
-----------------------
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