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 doesn't take any arguments.

   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

       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

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.