---
name: "Bio::PhyloNetwork::GraphViz"
section: "3pm"
platform: "linux"
package: "libbio-perl-perl"
version: "1.7.2-3"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/Bio::PhyloNetwork::GraphViz"
---

# Bio::PhyloNetwork::GraphViz(3pm)

Interface between PhyloNetwork and GraphViz

## 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
```