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#!/usr/bin/perl -w
use strict;
use Chart::Gnuplot;
# Demonstration of formatting legend
# - title of the legend
my $chart = Chart::Gnuplot->new(
output => "gallery/legend_6.png",
title => 'Legend with title',
legend => {
title => 'Legend title',
border => 'on',
},
);
# Lines
my $lines = Chart::Gnuplot::DataSet->new(
func => "cos(x)",
title => "cosine",
);
# Points
my $points = Chart::Gnuplot::DataSet->new(
func => "sin(x)",
title => "sine",
);
# Points on line
my $linespoints = Chart::Gnuplot::DataSet->new(
func => "x**2",
title => "quadratic",
);
# Plot the graph
$chart->plot2d($lines, $points, $linespoints);
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