gnuplot-info

[Gnuplot-info] Windows Version and the -persist Option

[Tony R. <ric...@ev...>]

The -persist option no longer seems to work for me with the 4.0.0 version
of gnuplot under Windows.  At a cmd prompt:

   echo plot sin(x) | pgnuplot -persist

The graph appears briefly, before disappearing.  This used to work for me
under previous gnuplot versions.  Looking at the source to pgnuplot, it 
appears
that the -persist option is just passed on to wgnuplot.exe, so I assume that 
the
problem lies there.  Can someone else confirm this problem or is it local to
my setup?  I *think* this is causing me problems getting maxima to create
plots for me.

Tony Richardson

Re: [Gnuplot-info] Windows Version and the -persist Option

[<br...@ph...>]

Tony Richardson wrote:
> The -persist option no longer seems to work for me with the 4.0.0 version
> of gnuplot under Windows.  

Where "no longer" means since when, actually?  What did you change that 
triggered this?

 > At a cmd prompt:
> 
>    echo plot sin(x) | pgnuplot -persist
> 
> The graph appears briefly, before disappearing.  This used to work for me
> under previous gnuplot versions.  

That's a little hard to believe --- according to the changelogs, 
"-persist" was only added in 2004-02, i.e. in the run-up phase to the 
4.0 release.

Anyway, -persist means rather a different thing to the Windows terminal 
than it does on X11, where it originated: in X11, the gnuplot process 
and the X11 window process are separate programs, in Windows they're the 
same one, so we can't stop one and keep only the other running (until 
somebody closes the window).   That's why it was called differently in 
Windows: /noend, which meant the program itself wouldn't stop after 
having read all the scripts (and you could type further commands into 
the console window).

But yes, something is broken in that area.  I can't (easily) cross-check 
it right now.  Please file this as a bug report in our tracker, so it 
doesn't get lost.