File: background_2.pl

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libchart-gnuplot-perl 0.23-2
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#!/usr/bin/perl -w
use strict;
use Chart::Gnuplot;

my $chart = Chart::Gnuplot->new(
    output => "gallery/background_2.png",
    title  => "Filling background color in the plot area",
    plotbg     => {
        color   => "#c9c9ff",
        density => 0.2,
    },
);

my $dataSet = Chart::Gnuplot::DataSet->new(
    func => "sin(x)",
);

$chart->plot2d($dataSet);