graph::writer::graphviz(3pm) [debian man page]

Graph::Writer::GraphViz(3pm)				User Contributed Perl Documentation			      Graph::Writer::GraphViz(3pm)

NAME

       Graph::Writer::GraphViz - GraphViz Writer for Graph object

SYNOPSIS

	 my @v = qw/Alice Bob Crude Dr/;
	 my $g = Graph->new(@v);

	 my $wr = Graph::Writer::GraphViz->new(-format => 'dot');
	 $wr->write_graph($g,'/tmp/graph.simple.dot');

	 my $wr_png = Graph::Writer::GraphViz->new(-format => 'png');
	 $wr_png->write_graph($g,'/tmp/graph.simple.png');

	 Graph::Writer::GraphViz->new(
	       -format => 'png',
	       -layout => 'twopi',
	       -ranksep => 1.5,
	       -fontsize => 8
	       -edge_color => 'grey',
	       -node_color => 'black',
	      )->write_graph($g,'/tmp/graph.png');

DESCRIPTION

       Graph::Writer::GraphViz is a class for writing out a Graph object with GraphViz module. All GraphViz formats should be supported without a
       problem.

METHODS

   new()
       Unlike other Graph::Writer modules, this module provide an extra parameter '-format' to new() method, in order to save different format.
       Other supported GraphViz parameters are -layout, -ranksep, -shape, -fontsize, -arrowsize.  Please see the SYNOPSIS for example usage.

       Valid format depends on those GraphViz as_fmt methods on your system, like, 'gif' if you have 'as_gif', 'text' if you can do 'as_text'.

SEE ALSO

       Graph, Graph::Writer, GraphViz

CREDITS

       Thanks for RURBAN@cpan.org for noticing tests failure on different platforms.

COPYRIGHT

       Copyright 2004 by Kang-min Liu <gugod@gugod.org>.

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

       See <http://www.perl.com/perl/misc/Artistic.html>

perl v5.12.4							    2011-10-16					      Graph::Writer::GraphViz(3pm)

Graph::Writer::XML(3pm) 				User Contributed Perl Documentation				   Graph::Writer::XML(3pm)

NAME

       Graph::Writer::XML - write out directed graph as XML

SYNOPSIS

	   use Graph;
	   use Graph::Writer::XML;

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

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

DESCRIPTION

       Graph::Writer::XML is a class for writing out a directed graph in a simple XML format.  The graph must be an instance of the Graph class,
       which is actually a set of classes developed by Jarkko Hietaniemi.

       The XML format is designed to support the Graph classes: it can be used to represent a single graph with a collection of nodes, and edges
       between those nodes.  The graph, nodes, and edges can all have attributes specified, where an attribute is a (name,value) pair, with the
       value being scalar.

METHODS

   new()
       Constructor - generate a new writer instance.

	   $writer = Graph::Writer::XML->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.

KNOWN BUGS

       Attribute values must be scalar. If they're not, well, you're on your own.

SEE ALSO

       XML::Writer
	   The perl module used to actually write out the XML.	It handles entities etc.

       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::XML

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 v5.14.2							    2012-02-14						   Graph::Writer::XML(3pm)