Re: using gnuplot 4.2

[Ares]

2007/7/27, LUK ShunTim <address@hidden>:
> Ares wrote:
> > Hi all,
> >
> > I am a new (happy) GNU/Linux user. I have kubuntu 7.04 installed with 
> > octave 2.9
> >
> > by default kubuntu package manager installs gnuplot version 4.0. now I
> > found on octave help that octave can use gnuplot 4.2 to show images
> > and plot data on top of such images (that is what I need) using
> > gnuplot.
> >
> > My problem is: how can I tell octave to use gnuplot 4.2 instead of 4.0?
> >
> > I tried removing gnuplot 4.0 but (of course) octave does not find
> > gnuplot anymore.
> >
> > thanks in advance for your help. Regards
> >
>
> Did you install gnuplot 4.2 via a deb package? If it's the case, the
> easiest way is probably the debian alternatives mechanism. Try "man
> update-alternatives" to see how to do it or install galternatives for a
> GUI to do the same.
>
> For standalone install, you can try setting the binary search path so
> that octave finds gnuplot 4.2 first. You may have to copy/rename the
> binary to gnuplot if it's called gnuplot-4.2 or something.
>
> For bash,
>
> export PATH=/path/to/your/gnuplot/binary/dir:$PATH
>
> Regards,
> ST
> --
>
>

as I said I am quite new to Linux, so I do not really understand all
you are saying...

anyway, I searched for gnuplot bin files and there are two of them,
/usr/bin/gnuplot and /usr/local/bin/gnuplot, the first corresponds to
gnuplot 4.0 and the second to 4.2. If I simply type gnuplot, it opens
gnuplot 4.2, so this should already be prior to 4.0 (and octave should
use this instead?)

I also tried galternatives (don't have time to do it by command line!)
and gnuplot is not there at all!

I think that the problem is "how to tell octave to use 4.2 version of
gnuplot"? and also, how to tell which version of gnuplot octave is
using? and is it true that octave is supposed to call gnuplot 4.2 to
show images (and plot on top of them)?

If I use imshow, octave keeps on using image magick...

Regards,
-- 
Diego
http://www.ares001.altervista.org/