[Octave-bug-tracker] [bug #47974] Visual differences between gnuplot and OpenGL toolkits

[Ben Abbott]

Follow-up Comment #33, bug #47974 (project octave):

Dan, xlabel, ylabel, and title objects are all type "text". And text objects
have 3D positions.

http://www.mathworks.com/help/matlab/ref/text-properties.html

Abandoning gnuplot's xlabel, ylabel, and tilte and opting for labels instead
would work, provided the font metrics can be worked out between Octave and
Gnuplot. I had considered that in the distant past, but at the time the text
object extents were not being updated when using the Gnuplot toolkit. I did a
quick check, and discovered that the extents are now being updated.

This is good news, and implies it is relatively simple to let Octave's
updaters do all the heavy lifting and just add axes using the property
position (no need to worry about the inset) and add the axes labels according
to their positions. The result would simplify __gnuplot_draw_axes__ ().

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