#!/usr/bin/perl -w
use strict;
use Chart::Gnuplot;
# Create the chart object
my $chart = Chart::Gnuplot->new(
    output => "arrows_4.png",
    title  => "Long-dash arrow",
    grid   => 'on',
);
# Add arrow
$chart->arrow(
    from     => "-3, 0.5",
    to       => "1, 0.2",
    color    => "dark-violet",
    linetype => "longdash",
);
# Data set object
my $dataSet = Chart::Gnuplot::DataSet->new(
    func => "sin(x)",
);
# Plot the graph
$chart->plot2d($dataSet);