Neil Bowers > Graph-ReadWrite > Graph::Writer::Dot

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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.

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