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.

perl v5.32.1                                       2021-09-19                            Graph::Writer::Dot(3pm)