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[Octave-bug-tracker] [bug #34117] lack of control over graph elements

From: Jordi Gutiérrez Hermoso
Subject: [Octave-bug-tracker] [bug #34117] lack of control over graph elements
Date: Wed, 24 Aug 2011 18:23:08 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110109 Voideagle/3.6.13

Follow-up Comment #1, bug #34117 (project octave):

> I am a great fan of gnuplot and use it a lot. It is a great choice as
> the plotting back-end for octave.

We disagree. gnuplot has many limitations, particularly for 3d
plotting, and it's very difficult to control it from Octave. We have
been trying to move away from gnuplot for a long time, and I'm hoping
that for 3.6, gnuplot will no longer be the default plotting engine.

> Hwvr, I am continually frustrated by the lack of control (and hence
> plotting features) accessible from octave.

If you want gnuplot, then keep using gnuplot. Octave is not gnuplot,
and you cannot send direct gnuplot commands from Octave anymore, at
least not easily, and this is intentional.

Here's a trick that will let you see the gnuplot commands that Octave
sends, which you can then manually edit and run in gnuplot. This is a
debug feature and is liable to be broken at any time:

drawnow ("x11",  "/dev/null", false,  "debug.gp")

now debug.gp contains the gnuplot commands for you to edit and run
without Octave.

That being said, it would be more useful if instead you told us which
plotting features you're missing so we can implement them, with and
without gnuplot.


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