matplotlib-users Mailing List for matplotlib

Here's a problem that's been driving me nuts, and I finally reduced it 
to a small self-contained script which can be found at 
http://gist.github.com/642538. The issue is that the pick_event does 
not always provide the correct index into the plotted data.
In case this script only bugs out on my machine, let me describe the 
problem. The callback should highlight whatever point is clicked. This 
happens correctly with no problems when clicking on 9 out of the 10 
points in the figure. But clicking the indicated point on the left-hand 
side (x[9], y[9]) also causes the indicated point on the top right 
(x[6], y[6]) to be highlighted as well.
Frustratingly, it seems that the numbers themselves are important for 
reproducing this bug! Specifically, x[9]+=0.01 does not "fix" the bug . 
. . but x[9] += 0.1 makes the callback work correctly (i.e. only the 
clicked point is highlighted). I'm guessing this is some sort of 
tolerance issue somewhere, but I can't find it.
possibly-relevant info:
matplotlib 1.0.0
numpy 1.3.0
Ubuntu 10.04 64bit
thanks,
-ryan

2010年10月22日 ny <nik...@gm...>:
> Hi,
> I am trying to install matplotlib on Mac Os 10.6.x without any success.
> I am on Snow Leopard w/ g++ --version i686-apple-darwin10-g++-4.2.1 (GCC)
> 4.2.1
When it's not very urgent I'd like to ask you to wait until next week,
I'll write a detailed instruction how to *successfully* compile mpl on
10.6.
Atm I'm busy with other things, you may want to search the archives
here so long: http://dir.gmane.org/gmane.comp.python.matplotlib.general.
I'm really sorry, please be a bit patient,
Friedrich
P.S.: Great that the numpy rc1 works, I was involved in building it,
this is the reason for my lack of time atm ...

Would others find it useful to have most/all of the artist.Artist 
subclasses updated to use the new (weak-ref) cbook.CallbookRegistry 
callbacks?
I'm working on a tool to tweak matplotlib figure styles/colors, etc, 
and I find it very useful to selectively enable "auto-updating" in 
my own toolkit such that the figure is updated on each change that 
I make. Although I'm able to do this in my own toolkit's wrapper 
layer, I would rather do it within matplotlib itself.
My thoughts are that at the least, I'd want parents to be able to 
subscribe to signals from children, and possibly vice-versa. Then 
at the top, have the Figure optionally add it's draw() method as 
a callback to it's child axes/whatever instances. 
I'll probably start working on some patches for own use anyway, 
but if there's interest, I'll keep them polished/tested and 
submit them for review.