GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  GRAPH::WRITER::VCG (3)

.ds Aq ’

NAME

Graph::Writer::VCG - write out directed graph in VCG format

CONTENTS

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

<B>Graph::Writer::VCGB> 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 <B>locB>, <B>classnameB>, <B>colorentryB>, and <B>infonameB> attributes for graphs, and the <B>locB> attribute for nodes,
o Can currently only handle <B>graphB>, <B>nodeB>, and <B>edgeB> elements and their attributes. So doesn’t know about <B>foldnode_defaultsB> 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

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.

Search for    or go to Top of page |  Section 3 |  Main Index


perl v5.20.3 GRAPH::WRITER::VCG (3) 2015-10-30

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.