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

my (@x,@y,@data); #data is initialized.
my $chart = Chart::Gnuplot->new(
    output => "test1.png",
    title  => "3D plot from arrays of x, y and z corrdinates",
    xlabel => 'x',
    ylabel => 'y',
);
$chart->set(view => '180,180,1,1');
my $dataSet = Chart::Gnuplot::DataSet->new(
    xdata => \@x,
    ydata => \@y,
    zdata => \@data,
);

$chart->plot3d($dataSet);