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[Octave-bug-tracker] [bug #57260] scatter plot legend different from pre

From: Pantxo Diribarne
Subject: [Octave-bug-tracker] [bug #57260] scatter plot legend different from previous releases
Date: Tue, 26 Nov 2019 16:08:47 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:69.0) Gecko/20100101 Firefox/69.0

Follow-up Comment #3, bug #57260 (project octave):

>> This could be a good approach, as long as the writers of the scatter, stem,
or other hggroup objects don't need to know about the internals of legend.m. 
I'm worried that the phrase "add listeneres to target h_hggroup_obj object"
may not be clear enough to them to figure out what to do. 

After thinking about it a little more, it is probably much easier to have all
the code in legend.m. The writers of hggroup specific legend code can then
simply follow local examples. We would need to track which function created
what hggroup, e.g. using a new hggroup string property "__creator__". We would
also need to disentangle the code for item creation/positioning from the rest
(the hardest task by far).


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