matplotlib-users Mailing List for matplotlib

Hi all,
Just to let you know I found this conversation and tips very useful... I just wish there was a nice complete tutorial somewhere (web, book) about everything there is to know about jupyter, widgets....etc. I started a github repo myself where I try to gather tips here and there (like today in those emails) into one place.
There isn’t too much yet (https://github.com/ornlpython/ipython_notebook_101) and also I should renamed it "jupyter_notebook_101" but it’s a start. If that can help somebody else !
Jean
On Feb 29, 2016, at 1:52 AM, Fernando Perez <fpe...@gm...<mailto:fpe...@gm...>> wrote:
On Sat, Feb 27, 2016 at 1:18 PM, Andy Davidson <An...@sa...<mailto:An...@sa...>> wrote:
Thanks. %matplitlib notebook looks great!. As I move the mouse around I see values for x, and y . Any idea how I can get programmatic access to the mouse events? I.E. When a user clicks I need to fetch some additional info.
I am sure there are many other things I’ll eventually want to do. For example I have several different lines on the same graph. I want to make it easy for the user to select values on a give line not just some random spot
Are there any other code examples or documentation?
Unfortunately it doesn't work perfectly yet, see:
https://github.com/jupyter/notebook/issues/244
https://github.com/matplotlib/matplotlib/issues/4582
But the following code can be used as a workaround, using an IPython widget to display the event data:
```
%pylab notebook
import ipywidgets as widgets
fig, ax = plt.subplots()
ax.plot(np.random.rand(10))
w = widgets.HTML()
def onclick(event):
 w.value = 'button=%d, x=%d, y=%d, xdata=%f, ydata=%f'%(
 event.button, event.x, event.y, event.xdata, event.ydata)
cid = fig.canvas.mpl_connect('button_press_event', onclick)
display(w)
```
Note, however, that at least for me, the interactive figures in the notebook are getting auto-closed for reasons I don't understand: https://github.com/matplotlib/matplotlib/issues/6075.
Cheers,
--
Fernando Perez (@fperez_org; http://fperez.org<http://fperez.org/>)
fperez.net<http://fperez.net>-at-gmail: mailing lists only (I ignore this when swamped!)
fernando.perez-at-berkeley: contact me here for any direct mail
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Matplotlib-users mailing list
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On Sat, Feb 27, 2016 at 1:18 PM, Andy Davidson <
An...@sa...> wrote:
> Thanks. %matplitlib notebook looks great!. As I move the mouse around I
> see values for x, and y . Any idea how I can get programmatic access to the
> mouse events? I.E. When a user clicks I need to fetch some additional info.
>
> I am sure there are many other things I’ll eventually want to do. For
> example I have several different lines on the same graph. I want to make it
> easy for the user to select values on a give line not just some random spot
>
> Are there any other code examples or documentation?
>
Unfortunately it doesn't work perfectly yet, see:
https://github.com/jupyter/notebook/issues/244
https://github.com/matplotlib/matplotlib/issues/4582
But the following code can be used as a workaround, using an IPython widget
to display the event data:
```
%pylab notebook
import ipywidgets as widgets
fig, ax = plt.subplots()
ax.plot(np.random.rand(10))
w = widgets.HTML()
def onclick(event):
 w.value = 'button=%d, x=%d, y=%d, xdata=%f, ydata=%f'%(
 event.button, event.x, event.y, event.xdata, event.ydata)
cid = fig.canvas.mpl_connect('button_press_event', onclick)
display(w)
```
Note, however, that at least for me, the interactive figures in the
notebook are getting auto-closed for reasons I don't understand:
https://github.com/matplotlib/matplotlib/issues/6075.
Cheers,
-- 
Fernando Perez (@fperez_org; http://fperez.org)
fperez.net-at-gmail: mailing lists only (I ignore this when swamped!)
fernando.perez-at-berkeley: contact me here for any direct mail