Hi monks,

i'm trying to draw a graph using GD::Graph and more or less i got it using piece of code below.

As you can see data of my array are hardcoded in the script, while i would like to read data from external input file and then draw my graph.

Many thanks in advance to anyone that will help me.

Hers's my script:

#!/usr/bin/perl
use strict;
use GD::Graph::bars3d;
use Date::Calc qw(:all);
use GD::Graph::Data; 

my ($d,$m,$y) = (localtime)[3,4,5];
my $mdy = sprintf '%02d-%02d-%02d', $d, $m+1, $y+1900;
my $title="IPTV - Video Server Bandwidth Report del "."$mdy";

my @data = (
  ["00:00","01:00","02:00","03:00","04:00","05:00","06:00","07:00","08
+:00","09:00","10:00","11:00","12:00","13:00","14:00","15:00","16:00",
+"17:00","18:00","19:00","20:00","21:00","22:00","23:00"], 
  [2585.54, 2095.44, 1748.02, 1454.55, 1290.86, 1235.33, 1151.04, 1160
+.86, 1191.82, 1343, 1514.33, 1693.67, 1773.7, 1897.82, 2733.04, 3257.
+12, 3375.69, 2949.53, 2573.52, 2139.65, 1697.83, 1989.94, 2746.92, 29
+98.7],
);

my $graph = new GD::Graph::bars3d( 1000, 500 );

$graph->set(
    x_label => 'Intervallo Orario',
    y_label => 'Traffico in Mbit/s',
    title => $title,
    x_labels_vertical => 1,
    x_label_position => 1/2,
    y_tick_number => 10,
    y_label_skip => 1,
    x_label_skip => 1,
    x_all_ticks => 1,
    x_labels_vertical => 1,
    box_axis => 0,
    y_long_ticks => 1,
    dclrs => [ qw(green) ],
    borderclrs => [ qw(black) ],
#white,lgray,gray,dgray,black,lblue,blue,dblue,gold,lyellow,yellow,dye
+llow,lgreen,green,dgreen,lred,red,dred,lpurple,purple,dpurple,lorange
+,orange,pink,dpink,marine,cyan,lbrown,dbrown 
    show_values => 1,
    values_vertical => 1,
    values_space => 15,
    bar_spacing => 10,
    );
my $gd = $graph->set_values_font(GD::gdGiantFont);
my $gd = $graph->set_title_font(GD::gdGiantFont);
my $gd = $graph->set_x_label_font(GD::gdGiantFont); 
my $gd = $graph->set_y_label_font(GD::gdGiantFont);
my $gd = $graph->set_x_axis_font(GD::gdGiantFont);
my $gd = $graph->set_y_axis_font(GD::gdGiantFont);

my $gd = $graph->plot( \@data );

open(IMG, '>file.jpeg') or die $!;
binmode IMG;
print IMG $gd->jpeg;
close IMG;

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In reply to GD::Graph input file by lorenzob

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