Re: Gnuplot error in Octave

[Niner]

Hi Thomas,

My problem is solved. I answered your questions below. Thank you very  
much.


Niner


On Jan 18, 2008, at 3:45 PM, Thomas Treichl wrote:

> Niner schrieb:
> > Hi Thomas,
> > I install Gnuplot.app from the same package of Octave.dmg, which I  
> > download from Octave-Forge. I place these two app in the / 
> > Applications folder. Octave automatically finds gnuplot to plot,  
> > but I got error on gnuplot. I also made link to Octave and Gnuplot  
> > such that I can open them whenever I need in Terminal.app.
> > The result of which gnuplot is
> > /usr/bin/gnuplot
> > where is the link pointing to.
> > Thanks for your response.
>
> No problem.
>
> I think you have one of the problems that some users already  
> reported. Something on their Mac influences Gnuplot.app and further  
> tells Gnuplot.app to use some strange backend driver. In your case  
> this is 'aquax' and I don't know who/what wants to set aquax for  
> Gnuplot. I may copy a summary from an older email here to not must  
> rewrite everything new, please check (and give feedback) if one of  
> these settings match your criteria:
>
> - The only thing that I can see and I don't know what it is for is  
> the manual installation of AquaTerm - an installation of AquaTerm is  
> not required if using the Gnuplot.app that comes with the octave- 
> *.dmg. Gnuplot.app brings its own working AquaTerm framework that is  
> installed in /Applications/Gnuplot.app/Contents/Resources/lib. Maybe  
> the problem comes with that AquaTerm.app?!
Do I need to uninstall AuqaTerm.app?

> - Can you see a .gnuplot file in your home directory? If yes what's  
> in it?
>    MyMac:~$ cat ~/.gnuplot
No. I didn't find .gnuplot file in my home directory. Should I need to  
create one?

> - If you do
>    MyMac:~$ export GNUTERM=aqua
>    MyMac:~$ /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot
>    gnuplot> plot sin(x)/x
>  is the bug still there?
No bug. After export GNUTERM=aqua, the gnuplot use terminal "aqua" as  
default and works find. The plotting is right.

> - gnuplot provides the x11 terminal type for use with X servers. This
> terminal type is set automatically at startup if the DISPLAY  
> environment
> variable is set, if the TERM environment variable is set to xterm,  
> or if
> the -display command line option is used.
In my case is, if I run octave in Terminal.app, not xterm, the plot in  
octave went wrong when calling gnuplot. But now it works fine after I  
export GNUTERM=aqua. I added this line into my bash .profile file.

> - If GNUTERM is defined, it is used as the name of the terminal type  
> to be
> used. This overrides any terminal type sensed by gnuplot on start- 
> up, but
> is itself overridden by the .gnuplot (or equivalent) start-up file  
> (see
> start-up (p. 34)) and, of course, by later explicit changes.
>
> - On Unix, HOME is used as the name of a directory to search for a
> .gnuplot file if none is found in the current directory.
>
> - GNUPLOT_LIB may be used to define additional search directories  
> for data
> and command files. The variable may contain a single directory name,  
> or a
> list of directories separated by a platform-specific path separator,  
> eg.
> ’:’ on Unix, or ’;’ on DOS/Windows/OS/2/Amiga platforms. The contents
> of GNUPLOT LIB are appended to the loadpath variable, but not saved  
> with
> the save and save set commands.