use strict;
use warnings;
use Chart::Gnuplot;

my @data = (
	    [0, 0, 10],
	    [0, 1, 10],
	    [0, 2, 10],
	    [],
	    [1, 0, 10],
	    [1, 1, 5],
	    [1, 2, 10],
	    [],
	    [2, 0, 10],
	    [2, 1, 1],
	    [2, 2, 10],
	    [],
	    [3, 0, 10],
	    [3, 1, 0],
	    [3, 2, 10],
	   );

my $chart = Chart::Gnuplot->new(
    output => "test1.png",
    title  => "3D plot from arrays of x, y and z coordinates",
    xlabel => 'x',
    ylabel => 'y',
);
$chart->set(pm3d => 'map');
$chart->set(palette => 'defined (0 0 0 1, 1 1 1 0, 2 1 0 0)');
my $dataSet = Chart::Gnuplot::DataSet->new(
    points => \@data,
);

$chart->plot3d($dataSet);