Re: line 0: invalid command

[Robert T. Short]

On 02/01/2014 10:49 AM, mlr31 wrote:
> Hello,
>
> I got often very similar errors when executing octave on a Linux server with
> a remote display based on a X11 server under Windows 7.
>
> When both computers are on the same LAN (100 Mbit/s Ethernet), I never see
> any error.
>
> When doing the same plots with the windows PC at home connected to the
> server via a VPN over an ADSL link, most of the plots are producing errors
> like this one (IM is a 120x682 matrix):
>
> octave:2> surf(IM);
> octave:3>
> gnuplot>  nset view;
>                ^ line 0: invalid command
>
> If I generate a PNG file instead of a display, it works. This is really
> linked to the use of the X11 display.
>
> I don't think that this is a problem on the octave side because I have
> similar errors and strange behaviours using gnuplot scripts written
> manually. The scripts generate correct display on the LAN and fail or
> generate garbage display over the VPN.
>
> I am using octave 3.6.4 (compiled from sources) and gnuplot 4.2 patchlevel 6
> (Fedora 13 standard package).
>
> Marc
I frequently see this kind of error running linux on a VMWare virtual 
machine on a Windows 7 host and less often on my  native linux machines 
at home.  I am sure it hasn't anything to do with X11, but somehow it 
seems that the interface with gnuplot is getting messed up.  I think it 
only happens when I plot really large data sets (like 100000 points) but 
haven't really tried to isolate it.

Bob