NAME

Graph::Easy::Layout::Force - Force-based layouter for Graph::Easy

SYNOPSIS

        use Graph::Easy;

        my $graph = Graph::Easy->new();

        $graph->add_edge ('Bonn', 'Berlin');
        $graph->add_edge ('Bonn', 'Ulm');
        $graph->add_edge ('Ulm', 'Berlin');

        $graph->layout( type => 'force' );

        print $graph->as_ascii( );

        # prints:

        #   +------------------------+
        #   |                        v
        # +------+     +-----+     +--------+
        # | Bonn | --> | Ulm | --> | Berlin |
        # +------+     +-----+     +--------+

DESCRIPTION

"Graph::Easy::Layout::Force" contains routines that calculate a force-based layout for a graph.

Nodes repell each other, while edges connecting them draw them together.

The layouter calculates the forces on each node, then moves them around according to these forces until things have settled down.

Used automatically by Graph::Easy.

EXPORT

Exports nothing.

METHODS

This module injects the following methods into Graph::Easy:

_layout_force()

Calculates the node position with a force-based method.

AUTHOR

See the LICENSE file for information.