Re: gnuplot and DISPLAY

[Ethan A M. <merritt@u.washington.edu>]

On Thursday 08 March 2007 18:27, Allin Cottrell wrote:
> 
> echo "set term png" | `which gnuplot` 2>/dev/null && \
> gnuplot_png=yes
> 
> This has worked with versions of gnuplot up to 4.0.  I have just 
> updated to version 4.2.0 and it now fails, if the command is not 
> run with the X11 display set.

I can't reproduce this.

  bash-3.1$ unset DISPLAY
  bash-3.1$ echo "set term png" | gnuplot_4.2 2>/dev/null && png42=yes
  bash-3.1$ echo $png42
  yes

> With previous gnuplot versions it was not necessary that the 
> DISPLAY variable be set to something valid for X11.

Let's try to pin down exactly what causes the failure.
 
> Can anyone suggest a workaround for this?  Thanks.

Yes.  It would be sufficient to pass in  GNUTERM=png
(or GNUTERM=<anything but x11> for that matter).

  bash-3.1$ echo "show term" | GNUTERM=dumb gnuplot_4.2

     terminal type is dumb feed  79 24


-- 
Ethan A Merritt