Hi Vicent,
I think the following example may help you, althogh their might be a better
way:
##############################
import matplotlib.pyplot as plt
def callback(ax):
""" prints mode of toolbar after limits changed
e.g.
mode : >zoom rect<
mode : >pan/zoom<
"""
print " mode : >%s<" % (plt.get_current_fig_manager().toolbar.mode)
ax = plt.gca()
ax.callbacks.connect('xlim_changed', callback)
ax.callbacks.connect('ylim_changed', callback)
plt.show()
######################################
kind regards Matthias
On Thursday 03 September 2009 14:07:06 Vicent Mas wrote:
> Hi,
>
> I'm a newbie to matplotlib. I'm embedding matplotlib (0,98.5.3) in a
> pyqt application. I'm using the qt4 backend and its navigation
> toolbar.
>
> I wish to execute a certain function every time the view interval of
> a figure is changed interactively (i.e. using the zoom rectangle or
> the
> axes pan/zoom button of the navigation toolbar). I'm interested in
> changes due to axes zoom and rectangle zoom but not in changes due
> axes pan. The only way I know for detecting this changes is
> 'x/ylim_changed' events. Unfortunately I don't know how to distinguish
> if the
> event is caused by a rectangle zoom, an axes zoom or an axes pan.
> I've read the events section of the documentation and searched the
> archives for a solution with no luck. Could somebody help me to
> solve this problem?
>
> Thanks in advance.
>
> Vicent
>
> PS:
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