[Octave-bug-tracker] [bug #40064] Legend "interpreter" property not working correctly

[Mike Miller]

Follow-up Comment #33, bug #40064 (project octave):

Glenn, here is my take on this bug.

I am not sure that there is any Matlab incompatibility right now. Making a
change to allow the default interpreter property for legend to inherit from
some other object type might actually introduce an incompatibility, so that
would be undesirable unless there is a very strong reason to do so.

Here is an example from the Matlab help for legend
(http://www.mathworks.com/help/matlab/ref/legend.html) that works perfectly in
Octave:


figure
x = -pi:pi/20:pi;
plot(x,cos(x),'-ro',x,sin(x),'-.b')
hleg1 = legend('cos_x','sin_x');
set(hleg1,'Location','NorthWest')
set(hleg1,'Interpreter','none')


And moreover, the following excerpt from the same legend help page:

> The properties that legends do not share with axes are
> * Location
> * Orientation
> * EdgeColor
> * TextColor
> * Interpreter
> * String

So they explicitly say that the interpreter property is *not* inherited from
the default axes property set. Making it do so would introduce unexpected
incompatibility.

It may yet be a bug that the legend interpreter does inherit from something
else, when in fact it may be that it should inherit from nothing and there
simply should be no way to set the default (until Matlab decides that there
is, of course).

And it may be a bug that it reports back "tex" when getting the property after
setting it to "none". I do not have access to Matlab to test that at the
moment.

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