Hey Monks, I am trying to plot a 2D surface or contour plot or heat map in perl. I decided to give Chart::Gnuplot a try. I could not find any documentation or example codes for this particular case. I have my X and Y coordinates in array @x and @y. Each position (X,Y) has a corresponding value in @data. This is what I have so far. How do I plot this? 
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);

[download]
Any help is highly appreciated. Thanks again monks!

In reply to 2d contour plot using Chart::Gnuplot by Ppeoc

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