NAME

       Bio::PhyloNetwork::GraphViz - Interface between PhyloNetwork and GraphViz

SYNOPSIS

         use Bio::PhyloNetwork;
         use Bio::PhyloNetwork::GraphViz;

         my $net=Bio::PhyloNetwork->new(
             -eNewick=>'((H1,(H1,(H2,l))),H2)t0; (some long label)H1; ("quoted label")H2;'
         );

         my $gv=Bio::PhyloNetwork::GraphViz->new(-net=>$net,-short_labels=>1);

         foreach my $u ($net->nodes()) {
             print "$u:".$gv->nodePN_to_nodeGV->{$u}."\n";
         }

         print $gv->as_text;

         open my $PS, '>', "net.ps" or die "Could not write file 'net.ps': $!\n";
         print $PS $gv->as_ps;
         close $PS;

DESCRIPTION

       This is a module to create GraphViz objects representing phylogenetic networks.

AUTHOR

       Gabriel Cardona, gabriel(dot)cardona(at)uib(dot)es

SEE ALSO

       Bio::PhyloNetwork, GraphViz

APPENDIX

       The rest of the documentation details each of the object methods.

   new
        Title   : new
        Usage   : my $graphv = new Bio::PhyloNetwork::GraphViz();
        Function: Creates a new Bio::PhyloNetwork::GraphViz object
        Returns : Bio::PhyloNetwork::GraphViz
        Args    : -net => Bio::PhyloNetwork object
                  -short_labels => boolean (optional)

       Returns a Bio::PhyloNetwork::GraphViz object, which is an extension of a GraphViz object.
       The GraphViz object is a representation of the phylogenetic network given. The extra
       information the created object holds is a hash table with keys the nodes of the
       PhyloNetwork object and values the nodes of the GraphViz object. If the optional argument
       -short_labels=>1 is given, the labels of the nodes in GraphViz are shortened to a maximum
       of 3 letters.

   nodePN_to_nodeGV
        Title   : nodePN_to_nodeGV
        Usage   : my $hashR=$graphv->nodePN_to_nodeGV()
        Function: returns (a reference to) a hash holding the translation between
                  nodes of the Bio::PhyloNetwork object and nodes of the GraphViz
                  object
        Returns : reference to hash
        Args    : none