Re: Problem with simple graphics

[Ben Abbott]

On Feb 19, 2012, at 9:34 PM, Bernard Abramson wrote:

> On Feb 19, 2012, at 9:26 PM, Ben Abbott wrote:
> 
>> On Feb 19, 2012, at 9:19 PM, Bernard Abramson wrote:
>> 
>>> On Feb 19, 2012, at 6:54 PM, Ben Abbott wrote:
>>> 
>>>> On Feb 19, 2012, at 1:55 PM, Bernard Abramson wrote:
>>>> 
>>>>> 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
>>>> 
>>>> Try running gnuplot directly. 
>>>> 
>>>> If the terminal isn't set to aqua by default, type ...
>>>> 
>>>>    set terminal aqua
>>>> 
>>>> Then type
>>>> 
>>>>    plot sin(x)
>>>> 
>>>> Do you get a plot ?
>>>> 
>>>> Ben
>>> 
>>> Thanks.  I set the terminal to aqua in Gnuplot.  When I entered 
>>> 
>>> plot sin(x)
>>> 
>>> Aquaterm starts but nothing happens.
>>> 
>>> If I set the terminal to x11 and enter the plot command I get the right 
>>> output.
>>> 
>>> Bernard
>> 
>> Ok. I'm out of ideas. Maybe someone else will have a suggestion. If you 
>> really want to use aqua, you might try the 4.2.6 gnuplot that is bunded with 
>> Maxima.
>> 
>> Since you are using 3.4.0, you might want to try the experimental OpenGL 
>> toolkit.
>> 
>>      close all
>>      graphics_toolkit fltk
>> 
>> After than try your plots.
>> 
>> From gnuplot you might also try ...
>> 
>>      set term
>> 
>> That will tell you what terminals are available. If wxt is there, you might 
>> try that as well.
>> 
>>      close all
>>      setenv GNUTERM wxt
>>      graphics_toolit gnuplot
>> 
>> and then try you plots.
>> 
>> Ben
>> 
>> 
>> 
>> Ben
>> 
>> 
> Ben,
> 
> Thanks for trying.  This is not the first time I've run up against OS X 
> problems -- I had a hard time getting Eclipse to run Fortran (yes, I'm a 
> really ancient Fortran programmer).  I got there in the end.
> 
> By the way, Gnuplot tells me it's version 4.4 patch level 3 and I thought I 
> saw somewhere that it's bundled with Aqua so it really ought to work out of 
> the box.
> 
> Bernard

You should check to be sure that gnuplot isn't running a version of Aquaterm 
you had installed previously. If it is installed it will be in Applications or 
a directory thereof. 

If there is no other Aquaterm, then I have a bit of a wild guess. Edit the 
gnuplot script again and find the lines below. Remove the "#"s seen below.

if [ -z ${GNUTERM} ]; then
  GNUTERM="aqua"
#  DYLD_FRAMEWORK_PATH="${ROOT}/lib:${DYLD_FRAMEWORK_PATH}" \
#    open "${ROOT}/lib/AquaTerm.app"
fi

Then start Octave and try ...

        setenv ("GNUTERM", "")
        plot (1:10)

Ben