Alright, so I dug the sources a bit and found the snippet
========================== *snip* ==========================
cb = cbar.Colorbar(cax, mappable, **kw)
def on_changed(m):
#print 'calling on changed', m.get_cmap().name
cb.set_cmap(m.get_cmap())
cb.set_clim(m.get_clim())
cb.update_bruteforce(m)
self.cbid = mappable.callbacksSM.connect('changed', on_changed)
mappable.set_colorbar(cb, cax)
========================== *snap* ==========================
I guess what happens is that a Colorbar is created, and a callback
function registered which adapts this very color bar whenever there is
a change in color maps/limits.
Well. -- I reckon that means that at the moment there's no way to tell
if a ScalarMappable has a color bar associated or not. :/ -- At least
I don't see how it would be possible to dig up on_changed( ) from the
list of callbacks and extract cb from it.
Aaand everybody: "Fea-ture request, fea-ture request!"
get_colorbar() for ScalarMappables :)
Cheers,
Nico
On Mon, Feb 15, 2010 at 7:58 PM, Nico Schlömer <[email protected]> wrote:
>> As far as I can see, it is the other way around, i.e., mappables
>> (e.g., images) know about the colorbar they are connected.
>
> Well yeah, that'd be even better. I'll check out the API. -- Hints
> would still be appreciated of course.
>
> --Nico
>
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