Graph::Writer::Dot(3)

NAME
Graph::Writer::Dot - write out directed graph in Dot format

SYNOPSIS
  use Graph;
  use Graph::Writer::Dot;

  $graph = Graph->new();
  # add edges and nodes to the graph

  $writer = Graph::Writer::Dot->new();
  $writer->write_graph($graph, 'mygraph.dot');

DESCRIPTION
Graph::Writer::Dot is a class for writing out a directed graph in the file format used by the dot tool (part of the AT+T graphviz package). The graph must be an instance of the Graph class, which is actually a set of classes developed by Jarkko Hietaniemi.

METHODS

  new()
Constructor - generate a new writer instance.

  $writer = Graph::Writer::Dot->new();

This can take one optional argument that tell to cluster nodes in subgraphs by using the attribute passed as value. See:

  $writer = Graph::Writer::Dot->new(cluster => 'group');

It will group nodes that have the the same value in the 'group' attribute.

  write_graph()
Write a specific graph to a named file:

  $writer->write_graph($graph, $file);

The $file argument can either be a filename, or a filehandle for a previously opened file.

SEE ALSO

www.graphviz.org <http://www.graphviz.org/>
    The home page for the AT+T graphviz toolkit that includes the dot tool.

Graph
    Jarkko Hietaniemi's modules for representing directed graphs, available from CPAN under modules/by-module/Graph/

Algorithms in Perl
    The O'Reilly book which has a chapter on directed graphs, which is based around Jarkko's modules.

Graph::Writer
    The base-class for Graph::Writer::Dot

REPOSITORY
<https://github.com/neilb/Graph-ReadWrite>

AUTHOR
Neil Bowers <neil@bowers.com>

COPYRIGHT
Copyright (c) 2001-2012, Neil Bowers. All rights reserved. Copyright (c) 2001, Canon Research Centre Europe. All rights reserved.

This script is free software; you can redistribute it and/or modify it under the same terms as Perl itself.