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package Graph::GEXF;
# ABSTRACT: Manipulate graph file in GEXF
use Moose;
use Data::UUID::LibUUID;
use Moose::Util::TypeConstraints;
use Graph::GEXF::Node;
with
'Graph::GEXF::Role::XML',
'Graph::GEXF::Role::Attributes' =>
{ for => [qw/node edge/], with_method => 1 };
=attr visualization (B<Boolean>)
if set to true, the generated graph will includes visualizations informations
=cut
has visualization => (
is => 'ro',
isa => 'Bool',
predicate => 'has_visualization',
);
=attr graph_mode (B<static|dynamic>)
Is your graph static or dynamic.
=cut
has graph_mode => (
is => 'ro',
isa => enum( [qw/static dynamic/] ),
required => 1,
default => 'static',
);
=attr edge_type (B<directed|undirected|mutual|notset>)
The type of the edges
=cut
has edge_type => (
is => 'ro',
isa => enum( [qw/directed undirected mutual notset/] ),
required => 1,
default => 'directed',
);
=attr nodes
a HashRef of L<Graph::GEXF::Node> objects.
=cut
=method total_nodes
Return the list of nodes attached to the graph
=cut
=method get_node
Return a node
=cut
=method add_node_attribute($name, $type, [$default_value])
Add attributes to node
=method all_nodes
Return all the nodes
=cut
has nodes => (
traits => ['Hash'],
is => 'rw',
isa => 'HashRef[Graph::GEXF::Node]',
default => sub { {} },
auto_deref => 1,
handles => {
_node_exists => 'exists',
_add_node => 'set',
total_nodes => 'count',
get_node => 'get',
all_nodes => 'keys',
},
);
=method add_node
Add a new node to the graph
=cut
sub add_node {
my $self = shift;
my ($id, %attributes);
# TODO should be possible to add a Graph::GEXF::Node too
if ( @_ == 1 ) {
$id = shift;
}
else {
if ( ( @_ % 2 ) == 0 ) {
%attributes = @_;
}
else {
$id = shift;
%attributes = @_;
}
}
if ($id && $self->_node_exists($id)) {
die "Can't add node wih id $id: already exists";
}
$id = new_uuid_string() if !defined $id;
my $node = Graph::GEXF::Node->new(id => $id);
map {
my $attribute = $self->get_node_attribute($_);
$node->set_node_attribute(
$_ => {
id => $attribute->{id},
name => $attribute->{name},
type => $attribute->{type},
}
);
} $self->attributes_node_list;
$self->_add_node($id => $node);
$node;
}
1;
=head1 SYNOPSIS
# create a new graph
my $graph = Graph::GEXF->new();
# add some attributes for nodes
$graph->add_node_attribute('url', 'string');
# create a new node and set the label
my $n1 = $graph->add_node(0);
$n1->label('Gephi');
my $n2 = $graph->add_node(1);
$n2->label('WebAtlas');
my $n3 = $graph->add_node(2);
$n3->label('RTGI');
# create relations between nodes
$n1->link_to(1, 2);
$n2->link_to(0);
$n3->link_to(1);
# set the value for attributes
$n1->attribute('url' => 'http://gephi.org/');
$n2->attribute('url' => 'http://webatlas.fr/');
$n3->attribute('url' => 'http://rtgi.fr/');
# render the graph in XML
my $xml = $graph->to_xml;
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