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GOBLIN Graph Library 2.8b26 (Default branch)
01-26-2009
The GOBLIN project consists of a C++ class library for a large series of graph optimization problems, GOSH, an extension of the Tcl/Tk scripting language to graph objects, and GOBLET, a graphical user interface to the library functions. GOBLET includes a graph editor and supports the standard graph layout methods. License: GNU Lesser General Public License (LGPL) Changes:|
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Graph::Writer::VCG(3pm) User Contributed Perl Documentation Graph::Writer::VCG(3pm) NAME
Graph::Writer::VCG - write out directed graph in VCG format SYNOPSIS
use Graph; use Graph::Writer::VCG; $graph = Graph->new(); # add edges and nodes to the graph $writer = Graph::Writer::VCG->new(); $writer->write_graph($graph, 'mygraph.vcg'); DESCRIPTION
Graph::Writer::VCG is a class for writing out a directed graph in the file format used by the VCG tool, originally developed for Visualising Compiler Graphs. The graph must be an instance of the Graph class, which is actually a set of classes developed by Jarkko Hietaniemi. If you have defined any attributes for the graph, nodes, or edges, they will be written out to the file, as long as they are attributes understood by VCG. METHODS
new() Constructor - generate a new writer instance. $writer = Graph::Writer::VCG->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 AND LIMITATIONS
o Attributes with non-atomic values aren't currently handled. This includes the loc, classname, colorentry, and infoname attributes for graphs, and the loc attribute for nodes, o Can currently only handle graph, node, and edge elements and their attributes. So doesn't know about foldnode_defaults and things like that. SEE ALSO
http://www.cs.uni-sb.de/RW/users/sander/html/gsvcg1.html The home page for VCG. 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::VCG 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::VCG(3pm)