I've updated the docstring with a comment about display issues in wxGTK.
Martin
Martin Spacek wrote:
Not sure if this already exists, but here's an example file of how to
get a wx.ToolTip to pop up and report the current mouse position in data
coordinates over a MPL axes. Not sure if it's the best way of doing
this, but it seems to work really well for me. Perhaps it would be
useful to add this to the MPL examples?
Cheers,
Martin
"""Example of how to use wx tooltips on a matplotlib figure window.
A tooltip pops up and tracks the mouse when the mouse is above the
axes, updating its value with the current x and y mouse position in
data coordinates. This has been tested on win32. There seem to be some
display problems under wxGTK."""
import matplotlib as mpl
mpl.use('WXAgg')
mpl.interactive(False)
import pylab as pl
from pylab import get_current_fig_manager as gcfm
import wx
class wxToolTipExample(object):
def __init__(self):
self.f = pl.figure()
self.a = self.f.add_subplot(111)
# create a long tooltip with newline to get around wx bug (in v2.6.3.3)
# where newlines aren't recognized on subsequent self.tooltip.SetTip()
calls
self.tooltip = wx.ToolTip(tip='tip with a long %s line and a newline\n'
% (' '*100))
self.tooltip.Enable(False) # leave disabled for now
self.tooltip.SetDelay(0) # set popup delay in ms
gcfm().canvas.SetToolTip(self.tooltip) # connect the tooltip to the
canvas
self.f.canvas.mpl_connect('motion_notify_event', self.onmotion)
def onmotion(self, event):
"""Called during mouse motion over figure"""
if event.xdata != None and event.ydata != None: # mouse is inside the
axes
tip='x=%f\ny=%f' % (event.xdata, event.ydata)
self.tooltip.SetTip(tip) # update the tooltip
self.tooltip.Enable(True) # make sure it's enabled
else: # mouse is outside the axes
self.tooltip.Enable(False) # disable the tooltip
example = wxToolTipExample()
pl.show()
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