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Re: Mac - problem with plotting


From: Tatsuro MATSUOKA
Subject: Re: Mac - problem with plotting
Date: Tue, 15 Jul 2014 18:47:48 +0900 (JST)

> From: Andrew Gibb 

> To: Ben Abbott > Cc: address@hidden
> Date: 2014/7/15, Tue 18:29
> Subject: Re: Mac - problem with plotting
> 
> Ben,
> 
> Thanks for your reply. To be explicit, I tried setting GNUTERM as an 
> environment variable using a bash export command to each of X11, qt, or 
> aqua. I then opened octave and did
> 
>   > x = linspace(0,5);
>   > plot(x, sin(x))
> 
> Each time this returned
> 
> gnuplot> set terminal aqua enhanced title "Figure 1" size 560 420 
> font 
> "*,6" dashlength 1
> ^
> line 0: unknown or ambiguous terminal type; type just 'set terminal' for 
> 
> a list
> 
> Then I tried opening octave from a termial with GNUTERM unset, then 
> tried using the octave command "set" to set GNUTERM to each of the 
> same 
> three values. Each time I call set GNUTERM, octave returns
> 
> error: invalid conversion from string to real N-d array
> error: set: expecting graphics handle as first argument
> 
> Then doing
>   > x = linspace(0,5);
>   > plot(x, sin(x))
> 
> returns
> gnuplot> set terminal aqua enhanced title "Figure 1" size 560 420 
> font 
> "*,6" dashlength 1
> ^
> line 0: unknown or ambiguous terminal type; type just 'set terminal' for 
> 
> a list
> irrespective of what GNUTERM is set to. I hope that's a little clearer.
> 
> 
> Here's the output from the commands you suggested (I installed fltk via 
> homebrew and started a new terminal):
> 
> octave:1> close all
> octave:2> set GNUTERM x11
> error: invalid conversion from string to real N-d array
> error: set: expecting graphics handle as first argument
> octave:2> plot (rand (3))
> 
> gnuplot> set terminal aqua enhanced title "Figure 1" size 560 420 
> font 
> "*,6" dashlength 1
> ^
> line 0: unknown or ambiguous terminal type; type just 'set terminal' for 
> 
> a list
> 
> octave:3>
> 
> 
> octave:3> close all
> octave:4> graphics_toolkit fltk
> error: graphics_toolkit: fltk toolkit is not available
> error: called from:
> error: 
> /usr/local/Cellar/octave/3.8.1/share/octave/3.8.1/m/plot/util/graphics_toolkit.m
>  
> 
> at line 70, column 5
> octave:4> plot (rand (3))
> 
> gnuplot> set terminal aqua enhanced title "Figure 1" size 560 420 
> font 
> "*,6" dashlength 1
> ^
> line 0: unknown or ambiguous terminal type; type just 'set terminal' for 
> 
> a list
> 
> octave:5>
> 
> Andy
> 
> 
> Ben Abbott wrote:
>>  On Jul 8, 2014, at 12:27 PM, Andrew Gibb<address@hidden> 
> wrote:
>> 
>>>  Hi,
>>> 
>>>  I can't seem to plot. I've just installed Octave using Homebrew 
> on
>>>  Mac OS Mavericks. If I do:
>>> 
>>>>  x = linspace(0,5);
>>>>  plot(x, sin(x))
>>>  I get
>>> 
>>>  gnuplot> set terminal aqua enhanced title "Figure 1" size 
> 560 420
>>>  font "*,6" dashlength 1
>>>  ^
>>>  line 0: unknown or ambiguous terminal type; type just 'set 
> terminal'
>>>  for a list
>>> 
>>>  However,
>>>  octave:3> set terminal
>>>  error: invalid conversion from string to real N-d array
>>>  error: set: expecting graphics handle as first argument
>>> 
>>>  Which I guess is not what I should see.
>>> 
>>>  It is suspicious that the error message begins "set terminal 
> aqua"
>>>  irrespective of the value of GNUTERM. The result is the same for
>>>  GNUTERM set to qt, aqua, or X11.
>>> 
>>>  The results are the same in the gui, or running Octave from a
>>>  terminal prompt.
>>> 
>>>  I have installed aquaterm via the dmg from sourceforge, and homebrew
>>>  has picked up the gnuplot dependency.
>>> 
>>>  Any ideas what's wrong here?
>>> 
>>>  Thanks
>> 
>>  It is likely that either your gnuplot was not compiled to plot using
>>  MacOS Aqua interface, or the Aquaterm libraries are not where gnuplot
>>  expects to find them. It is generally a good idea to build and install
>>  Octave and all its dependencies using Hombrew (including Aquaterm, and
>>  Gnuplot. However, since there is no Homebrew Aquaterm formula, you may
>>  be out of luck there).
>> 
>>  In any event, I realize you've said that GNUTERM has no effect, but
>>  you didn't say what you did.
>> 
>>  Please try the following commands from Octave's command line.
>> 
>>  close all
>>  set GNUTERM x11
>>  plot (rand (3))
>> 
>>  Also, there is good chance that the FLTK toolkit is supported. To find
>>  out, run Octave via the command line (this will not work from the GUI)
>>  and try ...
>> 
>>  close all
>>  graphics_toolkit fltk
>>  plot (rand (3))
>> 
>>  Ben
>> 
> 


>set GNUTERM x11 

should be 
setenv GNUTERM x11

BTW, run gnuplot from octave prompt

octave> system gnuplot

and in the gnuplot execute

gnuplot> set term

and see what interactive terminal is prepared for your gnuplot.

For Mac OSX, available interactive terminals are
aqua, x11, wxt, and qt.

Tatsuro



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