net.sourceforge.plantuml.graph.KenavoCostComputer Maven / Gradle / Ivy
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PlantUML is a component that allows to quickly write :
* sequence diagram,
* use case diagram,
* class diagram,
* activity diagram,
* component diagram,
* state diagram
* object diagram
/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2013, Arnaud Roques
*
* Project Info: http://plantuml.sourceforge.net
*
* This file is part of PlantUML.
*
* PlantUML 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 of the License, or
* (at your option) any later version.
*
* PlantUML 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* Original Author: Arnaud Roques
*
* Revision $Revision: 9786 $
*
*/
package net.sourceforge.plantuml.graph;
import net.sourceforge.plantuml.geom.LineSegmentInt;
public class KenavoCostComputer implements CostComputer {
public double getCost(Board board) {
double result = 0;
for (ALink link1 : board.getLinks()) {
for (ALink link2 : board.getLinks()) {
result += getCost(board, link1, link2);
}
}
return result;
}
LineSegmentInt getLineSegment(Board board, ALink link) {
final ANode n1 = link.getNode1();
final ANode n2 = link.getNode2();
return new LineSegmentInt(board.getCol(n1), n1.getRow(), board.getCol(n2), n2.getRow());
}
private double getCost(Board board, ALink link1, ALink link2) {
final LineSegmentInt seg1 = getLineSegment(board, link1);
final LineSegmentInt seg2 = getLineSegment(board, link2);
final double len1 = getLength(link1, seg1, board);
final double len2 = getLength(link2, seg2, board);
return len1 * len2 * Math.exp(-seg1.getDistance(seg2));
}
private double getLength(ALink link, final LineSegmentInt seg, Board board) {
double coef = 1;
if (link.getNode1().getRow() == link.getNode2().getRow()
&& board.getDirection(link) != board.getInitialDirection(link)) {
coef = 1.1;
}
return seg.getLength() * coef;
}
}