My user-story is that I have say several axvlines very close together in bunches in the standard xlim(). Take for example spectral lines (or fits to spectral lines). I want to pick a line and have the program tell me the x-location of that line. Since they're close together I need to zoom in to discriminate them. I don't want to have to zoom in, then move the mouse to unselect the zoom tool before moving the mouse back to do the pick or multiple picks.
M PS: In GTKAgg at least, the zoom tool has a cross-hair pointer which in my opinion is even better than the arrow. On 8/21/14 2:41 PM, Benjamin Root wrote: > Imagine someone creates some event that would modify an artist upon > picking, or do some expensive calculation, or some other action. But, I > seriously doubt anybody would want those actions to fire while using the > zoom/pan tool. Especially since the mouse cursor looks totally > different. I am curious why you would expect pick events to fire while > using pan/zoom. What is the user-story that compels that expectation? > Perhaps I could be convinced otherwise to offer some sort of toggle. > > > > On Thu, Aug 21, 2014 at 2:33 PM, Michael Kaufman <kaufma...@ornl.gov > <mailto:kaufma...@ornl.gov>> wrote: > > What kind of bad stuff happens if we were to allow that? > > M > > > On 8/21/14 2:29 PM, Benjamin Root wrote: > > Yes, those tools do "snarf" up pick events via the widgetlock > mechanism, > IIRC. This is entirely intentional, and I an not sure there is a bug > here to fix. > > > On Thu, Aug 21, 2014 at 12:01 PM, Thomas Caswell > <tcasw...@gmail.com <mailto:tcasw...@gmail.com> > <mailto:tcasw...@gmail.com <mailto:tcasw...@gmail.com>>> wrote: > > On Thu, Aug 21, 2014 at 9:44 AM, Michael Kaufman > <kaufma...@ornl.gov <mailto:kaufma...@ornl.gov> > <mailto:kaufma...@ornl.gov <mailto:kaufma...@ornl.gov>>> wrote: > > > > # plot axvlines here... etc. > > > > global cids > > > > # remove any previous connections > > for i in cids: > > gcf().canvas.mpl_disconnect(i) > > cids = [] > > > > > cids.append(gcf().canvas.mpl___connect('pick_event',self.__pick)) > > > > > cids.append(gcf().canvas.mpl___connect('button_press_event',__self.click)) > > > > draw() > > > > def pick(self, event): > > thisline = event.artist > > xdata, ydata = thisline.get_data() > > print xdata[0] > > > > def click(self, event): > > print "clicked" > > > See this minimal example > > ``` > import matplotlib.pyplot as plt > fig, ax = plt.subplots() > > ax.axvline(.5, picker=6) > ax.plot(range(3)) > cids = [] > > plt.draw() > > def pick(event): > thisline = event.artist > xdata, ydata = thisline.get_data() > print xdata[0] > > def click(event): > print "clicked" > > > cids.append(fig.canvas.mpl___connect('pick_event', pick)) > cids.append(fig.canvas.mpl___connect('button_press_event', > click)) > > ``` > > If you turn the zoom/pan tool off the picker works again. > I suspect > that there is some logic underneath those tools that are > snarfing > events when the are turned on to avoid messy conflicts. > There is some > work going on (MEP22 iirc) to update the toolbar and make > our tool > handling saner. > > Tom > -- > Thomas Caswell > tcasw...@gmail.com <mailto:tcasw...@gmail.com> > <mailto:tcasw...@gmail.com <mailto:tcasw...@gmail.com>> > > > > > ------------------------------__------------------------------__------------------ > Slashdot TV. > Video for Nerds. Stuff that matters. > http://tv.slashdot.org/ > _________________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.__sourceforge.net > <mailto:Matplotlib-users@lists.sourceforge.net> > <mailto:Matplotlib-users@__lists.sourceforge.net > <mailto:Matplotlib-users@lists.sourceforge.net>> > https://lists.sourceforge.net/__lists/listinfo/matplotlib-__users > <https://lists.sourceforge.net/lists/listinfo/matplotlib-users> > > > > ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
