Re: Problem with simple graphics

[Bernard Abramson]

On Feb 19, 2012, at 12:26 PM, Bernard Abramson wrote:

> 
> On Feb 19, 2012, at 11:19 AM, Ben Abbott wrote:
> 
>> *** please reply-all so that others may benefit from our exchange ***
>> 
>> *** also respond at the bottom so that the entire exchange can be read from 
>> top to bottom ***
>> 
>> On Feb 19, 2012, at 10:28 AM, Bernard Abramson wrote:
>> 
>>> On Feb 18, 2012, at 9:36 PM, Ben Abbott wrote:
>>> 
>>>> On Feb 18, 2012, at 5:40 PM, Bernard Abramson wrote:
>>>> 
>>>>> I have the current version of Octave (3.4.0) running on the current 
>>>>> version of Mac OS X.  I have installed Gnuplot.  I have corrected the  
>>>>> DYLD_LIBRARY_PATH problem in  Gnuplot-4.4.3.  However, when I appempt to 
>>>>> plot in Octave I obtain:
>>>>> 
>>>>> octave-3.4.0:1> sombrero(25)
>>>>> error: popen2: popen2 (child): unable to start process -- Operation not 
>>>>> permitted
>>>>> error: called from:
>>>>> error:   
>>>>> /Applications/Octave.app/Contents/Resources/share/octave/3.4.0/m/plot/__gnuplot_open_stream__.m
>>>>>  at line 30, column 44
>>>>> error:   
>>>>> /Applications/Octave.app/Contents/Resources/share/octave/3.4.0/m/plot/__gnuplot_drawnow__.m
>>>>>  at line 72, column 19
>>>>> sh: /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot: /bin/sh: 
>>>>> bad interpreter: Operation not permitted
>>>>> error: `unset' undefined near line 2 column 1
>>>>> warning: broken pipe -- some output may be lost
>>>>> 
>>>>> Any suggestions?
>>>>> 
>>>>> Sincerely,
>>>>> 
>>>>> Bernard Abramson
>>>> 
>>>> What do you get when you type ...
>>>> 
>>>>    system ('which gnuplot')
>>>> 
>>>> ... I get ...
>>>> 
>>>>    /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot
>>>> 
>>>> If so, what happens when you type ? ....
>>>> 
>>>>    system gnuplot
>>>> 
>>>> By "current verrsion of MacOS X do you refer to 10.7.3?
>>>> 
>>>> Ben
>>>> 
>>> Ben,
>>> 
>>> Thanks for the quick reply.
>>> 
>>> system('which gnuplot')
>>> 
>>> yields the same answer you quoted.
>>> 
>>> system gnuplot
>>> 
>>> yields:
>>> 
>>> sh: /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot: /bin/sh: bad 
>>> interpreter: Operation not permitted
>>> ans =  126
>>> 
>>> Yes, I'm using OS X 10.7.3
>>> 
>>> Any suggestions will be appreciated.  Whatever is wrong must be minor as 
>>> there ought to be many many successful installations of Octave on Mac.
>>> 
>>> Bernard
>> 
>> It looks like the change you made to the gnuplot script introduced a syntax 
>> error.
>> 
>> Any chance you edited the file below with Textedit ?
>> 
>>      /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot
>> 
>> If so, you'll need to be sure to save it as plain text. When saving be sure 
>> you select "Plain Text Encoding [Unicode (UTF-8)] and uncheck the box to 
>> make sure ".txt" isn't used as an extension.
>> 
>> If the gnuplot script was saved correctly, then I suspect you made a mistake 
>> in modifying it ... or the instructions you followed contained a mistake.
>> 
>> We recently updated the instructions for fixing gnuplot under Lion. See the 
>> README at the link below.
>> 
>> http://sourceforge.net/projects/octave/files/Octave%20MacOSX%20Binary/2011-04-21%20binary%20of%20Octave%203.4.0/
>> 
>> Ben
>> 
>> 
> Ben,
> 
> Yes I did use TextEdit to make the 4 changes to the DYLD_LIBRARY_PATH in 
> gnuplot listed at 
> http://sourceforge.net/projects/octave/files/Octave%20MacOSX%20Binary/2011-04-21%20binary%20of%20Octave%203.4.0/
> 
> So I reinstalled gnuplot.app, edited the file gnuplot using emacs and re-ran 
> Octave.  This time no error message, AquaTerm started but no plot window 
> opened.  I think that I'm only one step away from having this working so your 
> help is much appreciated.
> 
> Bernard
> 
> 
OK, progress.  I included the line

setenv("GNUTERM","x11")

and obtained plots.  However,

setenv("GNUTERM","aqua")

causes Aquaterm to open but nothing is plotted.

Bernard