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GOBLIN Graph Library 2.8b26 (Default branch)

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Special Forums News, Links, Events and Announcements Software Releases - RSS News GOBLIN Graph Library 2.8b26 (Default branch)
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Old 01-26-2009
GOBLIN Graph Library 2.8b26 (Default branch)
Image The GOBLIN project consists of a C++ class library for a large series of graph optimization problems, GOSH, an extension of the Tcl/Tk scripting language to graph objects, and GOBLET, a graphical user interface to the library functions. GOBLET includes a graph editor and supports the standard graph layout methods. License: GNU Lesser General Public License (LGPL) Changes:
The Tcl API has been completely revised to conform with the method names in the C++ core library. Tcl commands now consistently support optional parameters. The HTML reference now covers all graph methods in the Tcl API. A constructor method for k-ary (cyclic) butterfly graphs has been added. Image

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graph::easy::layout::force

Graph::Easy::Layout::Force(3pm) 			User Contributed Perl Documentation			   Graph::Easy::Layout::Force(3pm)

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.

SEE ALSO

       Graph::Easy.

METHODS

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

   _layout_force()
       Calculates the node position with a force-based method.

AUTHOR

       Copyright (C) 2004 - 2007 by Tels <http://bloodgate.com>.

       See the LICENSE file for information.

perl v5.14.2							    2011-12-23					   Graph::Easy::Layout::Force(3pm)