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[Octave-bug-tracker] [bug #64956] contour plots should accept "edgecolor

From: Pantxo Diribarne
Subject: [Octave-bug-tracker] [bug #64956] contour plots should accept "edgecolor" property for Matlab compatibility
Date: Mon, 4 Dec 2023 09:08:39 -0500 (EST)

Follow-up Comment #4, bug #64956 (project octave):

>> Thanks a lot for the detailed answer and the clarification about edge
and face colors -- I had not thought about that.

>> I still think that 'color' is the most natural property to think about
(at least considering the current documentation of contour, both
Octave & ML) , since (1) it is what 'plot' --the main plotting
function-- uses, (2) only the lines are important when 'contour' is
used (by default at least), (3) when 'contourf' is used, the lines are
not so important, plus they are _several_ face colors anyway.

>> So maybe this is the reason why ML still supports 'color'?

>> What would be the big deal of Octave supporting it as well, at least
until ML suppresses it?  There could be a warning message like
"'color' might be suppressed in the future, use 'edgecolor' instead".

>> At least it might be nice to also point to 'edgecolor' instead of just
the message "error: set: unknown hggroup property Color".

@OP: Please answer directly on the savannah web interface, mail answers are
not supported.

One of the main reasons why Octave doesn't support most undocumented ML
"features" is as I said : we may well be working to introduce a "feature" that
will disappear in the next ML version (it has happened to me as a contributor
for some root figure properties, I won't do the same mistake twice!). In short
the "big deal" is the finite, small,  number of developers and the very large
number of missing *documented* features that those dev could work on.  

Now if you think the doc is unclear, you are very welcome to propose a
modification that would make it more in line with how things really work. 


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