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When I use gnuplot I use its special file handle '-' and inline the data.

Would it be better to use a tempfile? and if so what are the advantages?

I'd write your code like this :-

use v5.12; use warnings; use autodie; use IO::Handle; open my $out,'|-','gnuplot'; say $out 'unset key'; say $out "plot '-' with lines lw 3"; for my $t (100..500) { say $out $t*sin($t*0.1),' ',$t*cos($t*0.1); } say $out 'e'; flush $out; <STDIN>; close $out;

In reply to Re: Plot a spiral with gnuplot by RichardK
in thread Plot a spiral with gnuplot by ambrus

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