[Octave-bug-tracker] [bug #31610] Text in subplot overlaps

[Ben Abbott]

Follow-up Comment #14, bug #31610 (project octave):

Rik,

I've is what renders for me using Gnuplot 4.6 patchlevel 3 and terminals
"aqua", "qt" & "x11" (demo subplot 1).  Notice the "qt" terminal looks ok,
"aqua" is overlapping, and "x11" is worse.

I don't think there is anything we can do to improve the rendering from the
Octave side.  Although we can offset the position of the axes labels relative
to where Gnuplot places them, we don't know where gnuplot actually places the
axes labels or that their extents are. To make matters worse, each of Gnplot's
terminals behave inconsistently.  In the past we considered replacing the axes
labels with text objects, but that didn't work out since we have no way to
determining the font metrics (text object's extents) for the text rendered by
gnuplot :-(

The preferred solution for Octave has been to use native graphics (this is
actually one of the reasons we decided to implement native graphics).

My preferred solution for Octave+Gnuplot is to allow Gnuplot to handle all
these sort of things.   Which is why the Gnuplot toolkit produces a different
result as compared to OpenGL when the activepositionproperty is
"outerposition" (Its rendered the "gnuplot" way, not the Matlab way).  We also
allow Gnuplot to handle the legend placement (using the gnuplot "key"
feature).

In any event, since OpenGL is working, I'm ok with closing this (marking the
Status as "Won't Fix" and the Item Group as "Matlab Compatibility"). I'm also
ok with keeping it open to help avoid new reports of this "feature".

Thoughts?


(file #28372, file #28373, file #28374)
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Additional Item Attachment:

File name: gnuplot-4.6p3-qt.png           Size:85 KB
File name: gnuplot-4.6p3-x11.png          Size:36 KB
File name: gnuplot-4.6p3-aqua.png         Size:82 KB


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