/ 
Graph-Graph6-6
River stage one • 2 direct dependents • 2 total dependents
/ Graph::Easy::As_sparse6

NAME

Graph::Easy::As_sparse6 - stringize Graph::Easy to sparse6 format

SYNOPSIS

use Graph::Easy;
my $graph = Graph::Easy->new;
$graph->add_edge('foo','bar');

use Graph::Easy::As_sparse6;
print $graph->as_sparse6;

DESCRIPTION

Graph::Easy::As_sparse6 adds an as_sparse6() method to Graph::Easy to give a graph as a string of sparse6. This format is per

The format represents an undirected graph possibly with multi-edges and self loops. If $graph is directed then an edge in either direction is written. If there's edges both ways then a multi-edge is written.

The format has no vertex names and no attributes. In the current implementation nodes are sorted alphabetically ($graph->sorted_nodes('name')) to give a consistent (though slightly arbitrary) vertex numbering.

See Graph::Graph6 for some notes on the format.

FUNCTIONS

The following new method is added to Graph::Easy.

$str = $graph->as_sparse6 ()

Return a string which is the sparse6 representation of $graph.

The string returned is printable ASCII. It includes a final newline "\n" so is suitable for writing directly to a file or similar. The only key/value option is

header   => boolean (default false)

If header is true then include a header >>sparse6<<.

SEE ALSO

Graph::Easy, Graph::Easy::As_graph6, Graph::Easy::Parser::Graph6

nauty-showg(1), Graph::Graph6

HOME PAGE

http://user42.tuxfamily.org/graph-graph6/index.html

LICENSE

Copyright 2015, 2016 Kevin Ryde

Graph-Graph6 is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.

Graph-Graph6 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Graph-Graph6. If not, see http://www.gnu.org/licenses/.