Here is the working code: 

<%init>

use GD::Graph::bars;
use Data::Dumper;

my ($x, $y, @numbers, $number);

my @data = (
    # X axis
    [ qw( -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 )]
);

# loop for each success level
for ($x = 1; $x < 5; $x++){

    # generate numbers for each skill level
    for ($y = 1; $y < 19; $y++){

        $number = $x*$y*2+5;
        push @numbers, $number;
    }
    push @data, [@numbers];
    @numbers = 0;
}

my $graph = new GD::Graph::bars();
$graph->set(
    title       => 'Skill Resolution',
    x_label     => 'Skill Level',
    y_label     => 'Success Level'
);

my $gd = $graph->plot(\@data) or die "Could not plot: ".$graph->error.
    Dumper(@data);
my $img = $gd->png();

$m->clear_buffer;
$r->content_type("image/png");
$r->send_http_header;
binmode STDOUT; 
$m->out($img);
$m->abort(OK);  # make sure nothing else gets sent

</%init>

[download]

Neil Watson
watson-wilson.ca

In reply to Re: GD::Graph without saving file by neilwatson
in thread GD::Graph without saving file by neilwatson

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