Re: [Matplotlib-users] SpanSelector on multiple figures

[fjldurodie <fre...@gm...>]

Hi,

Thanks for your reply :

I think I will try and follow your last suggestion by passing a callback 
function that is defined through another function (this is because the 
program generates a series of figures that are all similar) :

def gen_onselect(ax):
    def onselect:
       # do the stuff here that requires to know which axes
    return onselect

and then use

span = SpanSelector(ax, gen_onselect(ax), 'horizontal', useblit=True,
                    rectprops=dict(alpha=0.25, facecolor='blue') )

I'll let you know if this works or not.

Kind regards,
Frederic

Jae-Joon Lee wrote:
> On Mon, Apr 20, 2009 at 4:09 PM, fjldurodie
> <fre...@go...> wrote:
>   
>> Hi,
>>
>> I'm wondering if it is possible to use SpanSelector on multiple figures
>> : my problem is that I can't think of a way to tell the onselect on
>> which axes(ses) of which figure it should try and do something. The
>> example works because there is only one SpanSelector active and "it"
>> therefore knows which axes "it" should redraw.
>>
>> For it to work on multiple figures (say I have a series of events that I
>> plot in a similar way each in a separate figure and I would like a
>> SpanSelector feature on each of the figures) I would need to have a
>> reference to which axes called the onselect through SpanSelector : then
>> I could get the axes's figure and manipulate the other subplots on that
>> figure accordingly.
>>     
>
> Mouse event in mpl has a "inaxes" property. However, SpanSelector hide
> event information from users.
>
> On the other hand, the first argument of the SpanSelector is the
> "axes" that you want to use. So, I'm not sure what your point is. You
> already know the axes you're working with. Can't you just use
> different callbacks for different axes?
>
> -JJ
>
>
>   
>> Is there a way of doing this ?
>>
>> Kind regards,
>> Frederic
>>
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>
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