> To: Ben Abbott > Cc:

[hidden email]
> 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<

[hidden email]>

> 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

>>

>

and see what interactive terminal is prepared for your gnuplot.

aqua, x11, wxt, and qt.