/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2006-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library 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
* Lesser General Public License for more details.
*/
package org.geotools.geometry.iso.util.elem2D;
/**
* @author roehrig
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
*
*
*
* @source $URL$
*/
public class Quadrilateral2D extends Simplex2D {
/**
* @param p
*/
protected Quadrilateral2D(Node2D p0, Node2D p1, Node2D p2, Node2D p3) {
super(new Node2D[] {p0,p1,p2,p3});
}
private static int SIDE[] = {
(1<<0) | (1<<1), // v[0] && v[1]
(1<<1) | (1<<2), // v[1] && v[2]
(1<<2) | (1<<3), // v[2] && v[3]
(1<<3) | (1<<0) // v[3] && v[0]
};
/* (non-Javadoc)
* @see org.arena.GeoSimplex2D#n()
*/
public int n() {
return 4;
}
/* (non-Javadoc)
* @see org.arena.GeoSimplex2D#side(int)
*/
public int sideBits(int s) {
return SIDE[s];
}
}