Re: [Gnuplot-info] Call help with export script in Gnuplot 5.0

[Ethan M. <eam...@gm...>]

On Wed, Dec 17, 2014 at 12:09 PM, dbrant <bra...@ho...> wrote:
> Hi Gnuplotters
>
> For years i have used the following script taken from the Gnuplot In Action
> book to generate my graphs:
>
> save "$0.gp"    # Save commands to file
> set t push              # Save commands to file
> set t png $1    # Store current terminal settings
>                         # options from second argument
> set o "$0.png"  # Set output file name
> replot          # Generate plot
> set o                   # Restore output to interactive terminal
> set t pop               # Restore interactive terminal settings
>
> This could be invoked as:
>
> call 'export.gp' 'myplot' 'size 160,100'
>
> With the advent of Gnuplot 5.0 this no longer works due to changes in
> argument references from tokens $0 ... etc to string variables.
>
> Unfortunately i cannot get my head around it by way of examples i have seen.
>
> Could anyone please  re-work the script to take recent developments into
> account that i may understand use.
> Regards, Dave

script.gp:
~~~~~~
print "entering script ", ARG0
save ARG1 . ".gp"
set term push
set term png @ARG2
set output ARG1 . ".png"
replot
unset output
set term pop


I find the entire call mechanism ugly, however.  I'd be more likely to do

newplot = 'myplot'
newsize = '160,100'
load 'script.gp'

script.gp:
~~~~~~
save newplot . ".gp"
set term png size @newsize
set output newplot . ".png"
replot
unset output
unset term
~~~~~~