#!/usr/bin/env perl
use strict;
use warnings;
use File::Spec;
use GraphViz2;
use Log::Handler;
# ---------------
my($logger) = Log::Handler -> new;
$logger -> add
(
screen =>
{
maxlevel => 'notice',
message_layout => '%m',
minlevel => 'error',
}
);
my($graph) = GraphViz2 -> new
(
edge => {color => 'grey'},
global => {directed => 1},
graph => {rankdir => 'TB'},
logger => $logger,
node => {shape => 'oval'},
);
$graph -> default_node(shape => 'circle', style => 'filled');
$graph -> default_edge(arrowsize => 4);
$graph -> add_node(name => 'Carnegie', shape => 'circle');
$graph -> add_node(name => 'Carnegie', color => 'red');
$graph -> default_node(style => 'rounded');
$graph -> add_node(name => 'Murrumbeena', shape => 'box', color => 'green', label => '<Murrumbeena<br/><font color="#0000ff">Victoria</font><br/>Australia>');
$graph -> add_node(name => 'Oakleigh', shape => 'record', color => 'blue', label => ['West Oakleigh', 'East Oakleigh']);
$graph -> add_edge(from => 'Murrumbeena', to => 'Carnegie', arrowsize => 2, label => '<Bike<br/>Train<br/>Stroll>');
$graph -> default_edge(arrowsize => 1);
$graph -> add_edge(from => 'Murrumbeena', to => 'Oakleigh:port1', color => 'brown', label => '<Meander<br/>Promenade<br/>Saunter>');
$graph -> add_edge(from => 'Murrumbeena', to => 'Oakleigh:port2', color => 'green', label => '<Drive<br/>Run<br/>Sprint>');
my($node_hash) = $graph -> node_hash;
my($edge_hash) = $graph -> edge_hash;
for my $from (sort keys %$node_hash)
{
my($attr) = $$node_hash{$from}{attributes};
my($s) = join(', ', map{"$_ => $$attr{$_}"} sort keys %$attr);
$logger -> log(notice => "Node: $from");
$logger -> log(notice => "\tAttributes: $s");
for my $to (sort keys %{$$edge_hash{$from} })
{
for my $edge (@{$$edge_hash{$from}{$to} })
{
$attr = $$edge{attributes};
$s = join(', ', map{"$_ => $$attr{$_}"} sort keys %$attr);
$logger -> log(notice => "\tEdge: $from$$edge{from_port} -> $to$$edge{to_port}");
$logger -> log(notice => "\t\tAttributes: $s");
}
}
}