[Matplotlib-users] MultiCursor messes with xlim and ylim autoscaling

[Michael K. <kau...@or...>]

Hi Gurus:

I'm having a serious problem with MultiCursor and autoscaling...

If I do the code below with both MultiCursor instantiations commented 
out, then all plots are xscaled to [50,55] and yscaled to each plot's 
appropriate ylimits.

If I uncomment the top MultiCursor instantiation, then both the xlimits 
and ylimits are screwed up: xlim=[0,60] and ylim is all over the place, 
certainly not autoscaled tight.

If I uncomment the bottom MultiCursor instantiation, then the xlimit 
appears to be scaled correctly, [50,55], but two of the four plots 
(lower left and upper right) are not autoscaled in y.

How to I instantiate MultiCursor to get the normal and expected 
autoscaling behavior?

Not that it should matter, but I'm using here Tk and Python3 with MPL 
1.5dev1 (91ca2a3724ae91d28d97)

Thanks for any help,

M

=============

from matplotlib import pyplot as pl
from matplotlib.widgets import MultiCursor
from matplotlib import gridspec
import numpy as np

if __name__ == "__main__":

   fig = pl.gcf()
   gs = gridspec.GridSpec(2,2)

   ax = None
   for g in gs:
     ax = pl.subplot(g, sharex=ax)

   #multi = MultiCursor(fig.canvas, tuple(fig.axes),
   #                    useblit=True, horizOn=True, color='k', lw=1)

   x = np.arange(50,55,0.01)
   y1 = np.sin(x)
   y2 = np.cos(x) + 4
   y3 = 0.2*np.cos(x) - 4
   y4 = np.cos(2*x) - 1

   for ax,y in zip(fig.axes, [y1,y2,y3,y4]):
     ax.plot(x,y)

   for ax in fig.axes:
     ax.grid()

   #multi = MultiCursor(fig.canvas, tuple(fig.axes),
   #                    useblit=True, horizOn=True, color='k', lw=1)

   pl.draw()
   pl.show()