table of contents
Graph::Writer::Dot(3pm) | User Contributed Perl Documentation | Graph::Writer::Dot(3pm) |
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¶
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.
2021-09-19 | perl v5.32.1 |