Re: Misc problems with octave-2.1.53 / gnuplot interaction

[Dmitri A. Sergatskov]

As a followup. I did reinstall 2.1.50.
Now "tee" problem has gone and I can record gnuplot commands.

The plotting bug is different, though is similar!
If I _type_ at the prompt:
address@hidden octave]$ octave
GNU Octave, version 2.1.50 (i686-pc-linux-gnu).
...
octave:1> x=linspace(-100,100,400); y=sin(0.1*x); z=cos(0.1*x);
octave:2> plot(x,y)
octave:3> plot(x,z)
octave:4> quit

Everything works as expected. Now I put the same commands into .m file
and execute it. It is important to _restart_ octave before that:

address@hidden octave]$ cat testgp1.m
x=linspace(-100,100,400); y=sin(0.1*x); z=cos(0.1*x);
plot(x,y)
plot(x,z)

address@hidden octave]$ octave
GNU Octave, version 2.1.50 (i686-pc-linux-gnu).

gnuplot_binary = tee /tmp/gnuplot-oct.cmd |gnuplot
octave:1> testgp1
octave:2>
gnuplot> et nologscale
         ^
         line 0: invalid command


(It did plot everything as expected, though it is not quite
reproducible -- sometimes it plots only the first plot. The gnuplot-oct.cmd
file would have perfectly fine gnuplot commands -- executing it
inside gnuplot produces expected output.)
Another funny thing that all consecutive plots from that moment on will be fine.
Also if I do any kind of plots before running testgp1.m it will work fine as 
well.
Putting "pause(0.1)" between the plots in testgp1.m eliminate this problem
as well.

Sincerely,
Dmitri.



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------