NAME

Graph::Layout::Aesthetic::Force::ParentLeft - Try to place parents to the left of their children

SYNOPSIS

use Graph::Layout::Aesthetic;
$aglo = Graph::Layout::Aesthetic->new($topology);
$aglo->add_force("ParentLeft", 1);

DESCRIPTION

This module provides an aesthetic force for use by the Graph::Layout::Aesthetic package. It's normally implicitly loaded by using add_force.

The aesthetic force is that it tries to place parent nodes at least 5 to the left of child nodes. If nodes are placed so that this condition is not fulfilled, the nodes try to move left or right so it will be with a force that's quadratic in how much their distance on the x-axis is wrong.

METHODS

This class inherits from Graph::Layout::Aesthetic::Force and adds no methods of its own.

EXPORT

None.

SEE ALSO

Graph::Layout::Aesthetic, Graph::Layout::Aesthetic::Force

AUTHOR

Ton Hospel, <Graph-Layout-Aesthetic@ton.iguana.be>

COPYRIGHT AND LICENSE

Copyright (C) 2004 by Ton Hospel

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.6.1 or, at your option, any later version of Perl 5 you may have available.

Much of the underlying XS code is derived from C code copyrighted by D. Stott Parker, who released it under the GNU GENERAL PUBLIC LICENSE (version 1).