Re: Problems changing Code

[Marius Schamschula]

Pablo,

Your problems is that Octave, and for that matter gnuplot, can't find 
X11.

When you want to install any Unix app on that requires X11 under Mac OS 
X you have to do two things:

1) install X11 (optional install, part of main Mac OS X install) and 
the X11 SDK (optional install, part of Developer Tools). I'm not too 
familiar with Fink, which you seem to be using, but I know DarwinPorts 
also supplies their own version of X11. So there is likely a choice 
other than Apple's implementation (which works fine for me).

2) define DISPLAY in your environment, e.g. add

DISPLAY=:0.0
export DISPLAY

to .bash_profile


On May 20, 2005, at 10:52 PM, Pablo Suarez wrote:

> Hi ! I am new to Octave and to Mac OX in general. I have a very simple 
> problem. I would like to change some code from the function
> figure.m which is giving me problems. The function figure.m  when use 
> always gives me this error:
> error: figure: requires X11 and valid DISPLAY
> error: evaluating if command near line 42, column 7
> error: evaluating if command near line 41, column 5
> error: evaluating if command near line 40, column 3
> error: called from `figure' in file 
> `/sw/share/octave/2.1.53/m/plot/figure.m'
>
> THis is just for the record. I found the solution thanks to this site 
> by changing just a bit of the code. The problem that I have is that I 
> don't know how
> to change the code! I open a terminal in my Mac and then use emacs or 
> vi to open the source code of the function figure.m .
> But this says  it is in read mode only. Since this is GNU software I 
> should be able to change the code easily. What I'm doing wrong? Sorry 
> to ask such silly question but I have
> been trying to find help all over the place and can't do it. Thanks 
> for your help in advance!
> PS
> Pablo Suarez : )
> Ph. D Student
> RPI

Marius
--
Marius Schamschula                               Webmaster

        The Huntsville Macintosh Users Group
                    www.hmug.org

webmaster at hmug dot org    marius at schamschula dot com



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