NAME

       Graph::Maker::Disk - Creates a graph with nodes positioned in concentric connected rings.

VERSION

       Version 0.01

SYNOPSIS

       Creates a disk graph with init nodes on the first cycle, and disks total cycles.  A disk
       graph is an extensoin of a wheel (a wheel is a disk with disks=1) wherein there is a
       central node, then init node, then 2*init nodes, ... to 2**disks*init nodes where each
       node on an inner cycle connects to 2 nodes on the outter cycle.  If the graph is directed
       then edges are added in both directions to create an undirected graph.

               use strict;
               use warnings;
               use Graph;
               use Graph::Maker;
               use Graph::Maker::Disk;

               my $g = new Graph::Maker('disk', disks => 4, init => 3);
               my $arr = $g->get_vertex_attribute(1, 'pos");
               print "@$arr\n"; # prints out 0 0
               # work with the graph

       As disk graphs are generally associated with geometry the pos attribute is set for each
       node specifying their position (node 1 is at (0,0) and the distance between nodes is 1
       unit).

FUNCTIONS

   new %params
       Creates a disk graph with init nodes on the first cycle, and disks total cycles.  the
       required parameters are graph_maker, disks and init (init >= 2 || init == 0) any others
       are passed onto Graph's constructor.  If disks is not given it defaults to 0.  If init is
       not given it defaults to 0.  The vertex attribute pos will be set to an array reference of
       the nodes d-dimensional position.  If graph_maker is specified it will be called to create
       the Graph class as desired (for example if you have a subclass of Graph), this defaults to
       create a Graph with the parameters specified.

AUTHOR

       Matt Spear, "<batman900+cpan at gmail.com>"

BUGS

       Please report any bugs or feature requests to "bug-graph-maker-disk at rt.cpan.org", or
       through the web interface at <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Graph-Maker>.
       I will be notified, and then you'll automatically be notified of progress on your bug as I
       make changes.

COPYRIGHT & LICENSE

       Copyright 2008 Matt Spear, all rights reserved.

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