Re^2: making a scientific chart


We don't bite newbies here... much
	PerlMonks

Re^2: making a scientific chart

by monarch (Priest)

on Dec 31, 2008 at 01:33 UTC ( [id://733373]=note: print w/replies, xml )

Need Help??

in reply to Re: making a scientific chart
in thread making a scientific chart

Instead of using a CPAN module why not try simply creating a file and then call gnuplot (see the gnuplot demo gallery).. Some tested example code:

use strict;

open( my $fout, ">myplot.gpt" )
  or die( "Problem: $!" );

print( $fout <<'EOF' );
  reset

  set terminal png size 320,160 medium
  set output 'myplot.png'

  set title "Test Plot"
  set xrange [0:5]
  set yrange [0:100]
  plot [0:5] "-" using 1:2 title "Distance" with lines
    1.0   20
    2.0   40
    3.0   40
    4.0   80
  end
EOF

close( $fout );

my $result = `gnuplot myplot.gpt`;
print( $result ) if ( $result );
[download]

Update: added close() to ensure command file was closed before being fed to gnuplot