Works pretty well. I've now implemented something like ========================== *snip* ========================== def find_associated_colorbar( obj ): for child in obj.get_children(): try: cbar = child.colorbar except AttributeError: continue if not cbar == None: # really necessary? # if fetch was successful, cbar contains # ( reference to colorbar, reference to axis containing colorbar ) return cbar[0] return None ========================== *snip* ==========================
How did you find out about the colormap attribute? Was that by taking a good guess in looking at the source code, or are the public attributes of a class documented? Cheers, Nico On Tue, Feb 16, 2010 at 1:18 PM, Jae-Joon Lee <lee.j.j...@gmail.com> wrote: > set_colorbar sets colorbar attribute. So I guess you can just check if > Mappable.colorbar is None or not. > Mappable.colorbar, when set, should be a tuple whose first item is an > image for colorbar and the second item is an colorbar axes. > > Regards, > > -JJ > > On Tue, Feb 16, 2010 at 5:26 AM, Nico Schlömer <nico.schloe...@gmail.com> > wrote: >> 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 <nico.schloe...@gmail.com> >> 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 >>> >> > ------------------------------------------------------------------------------ SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users