Fwd: Plot in Octave 3.8.1?

[Vic Norton]

This is a note I just received from Michael Dickens. Michael maintains Octave 
on MacPorts. The MacPorts version of Octave 3.8.1 works perfectly, as far as I 
can tell, except for the graphics---e.g., the plot command.

If anyone has any idea what the problem might be, please get in touch with 
Michael.

Regards,

Vic Norton

Begin forwarded message:

> From: Michael Dickens <address@hidden>
> Subject: Re: Plot in Octave 3.8.1?
> Date: September 23, 2014 at 12:23:14 PM EDT
> To: Vic Norton <address@hidden>
> Cc: Ben Abbott <address@hidden>, "Dr. Sebastian Schöps" <address@hidden>, 
> Jordi Gutiérrez Hermoso <address@hidden>, "c." <address@hidden>, John Eaton 
> <address@hidden>
> 
> Hi Vic - Sorry for the long delay.  I see this issue too.  Even when I use
> {{{
> graphics_toolkit("fltk")
> }}}
> Octave still bombs out:
> {{{
> octave:2> graphics_toolkit("fltk")
> octave:3> plot([1 3 5], [1 3 5])
> panic: Segmentation fault: 11 -- stopping myself...
> attempting to save variables to 'octave-workspace'...
> save to 'octave-workspace' complete
> Segmentation fault: 11
> }}}
> 
> "graphics_toolkit" returns "gnuplot" by default, which does as you describe 
> -- just hangs until I hit ^C a few times.
> 
> Octave folks: Any advice to us on what we're doing wrong and/or how to fix 
> this issue?
> 
> Thanks! - MLD
> 
> On Jul 17, 2014, at 10:24 AM, Vic Norton <address@hidden> wrote:
> 
>> Hi Michael,
>> 
>> Octave 3.8.1 seems to be working perfectly except for the plot command 
>> (which I don't often use). For example
>>  octave> plot ([3,2,5])
>> simply hangs up the system and I need to hit ^C a few times to get out. 
>> After the ^C's I end up with
>> Octave-1-L
>> in an "octave-workspace" file. A U+0000 actually follows the L.
>> 
>> I have installed Octave 3.8.1 both with and without x11:
>> octave @3.8.1_0+atlas+docs+gcc48 (active) platform='darwin 13' archs='x86_64'
>> octave @3.8.1_0+atlas+docs+gcc48+x11 platform='darwin 13' archs='x86_64'
>> Neither Octave can perform the simplest plot.
>> 
>> I had no problems plotting with my previous Octave 3.6.4:
>> octave @3.6.4_14+atlas+fltk+gcc47 platform='darwin 13' archs='x86_64'
>> 
>> Right now I have
>> setenv GNUTERM aqua
>> but
>> setenv GNUTERM x11
>> doesn't help with the x11 system.
>> 
>> Any advice would be appreciated.