Re: Terminal settings saved where they shouldn't

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

On Thursday 21 October 2004 02:58 pm, Harald Harders wrote:
> 
> It produces two identical, coloured, eps figures. I would prefer that a
> terminal starts with its default settings when it is chosen after another
> terminal type.

I would prefer that the current settings are kept.

> If I want to restore the old settings I can use 
> 'set term push' and 'set term pop' (BTW: gnuplot does not find these
> command in the help).

Do these actually work?
When I have tried to use them I get errors or misdirected output
or some random collection of terminal settings.  I thought they
were unmaintained remnants of some earlier system.

>   Another case is this:
> 
> set terminal postscript eps
> set terminal postscript color
> 
> This adds the setting 'color' to the already chosen terminal type. If this
> should be the case has been discussed here some years ago.
> 
> But, if a different terminal has been used in the meanwhile I think the
> old settings should not be preserved.

Isn't that rather confusing?  You don't necessarily *know* if another
terminal has been used in between, particularly if you are stringing
together scripts.  But even if you *do* know, I think it is better to 
preserve the settings as much as possible

Example:

bind "P" 'set term post color solid; set output "| lpr"; replot; set term x11'

Now I have a print key in X11.  But it's really annoying if using that 
print key changes what is next shown on the x11 plot window. 

For completeness I point out that

bind "p" 'set term push; set term post color solid; set output "| lpr"; replot; set term pop'

does not work.  It produces a corrupt output stream.
Adding in another 'set output' does not help.

Did this ever work? 


> What do you think about it? I offer to do the work if you also think this
> is useful.

I'd say first fix push/pop, including making sure they work
recursively.

If those actually worked then I'd have a more favorable reaction
to losing the current settings from a normal 'set term foo'. 


-- 
Ethan A Merritt       merritt@u.washington.edu
Biomolecular Structure Center
Mailstop 357742
University of Washington, Seattle, WA 98195