/*
* The JTS Topology Suite is a collection of Java classes that
* implement the fundamental operations required to validate a given
* geo-spatial data set to a known topological specification.
*
* Copyright (C) 2001 Vivid Solutions
*
* 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; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jts.triangulate.quadedge;
import java.util.ArrayList;
import java.util.List;
/**
* Utilities for working with {@link QuadEdge}s.
*
* @author mbdavis
*
*/
public class QuadEdgeUtil
{
/**
* Gets all edges which are incident on the origin of the given edge.
*
* @param start
* the edge to start at
* @return a List of edges which have their origin at the origin of the given
* edge
*/
public static List findEdgesIncidentOnOrigin(QuadEdge start) {
List incEdge = new ArrayList();
QuadEdge qe = start;
do {
incEdge.add(qe);
qe = qe.oNext();
} while (qe != start);
return incEdge;
}
}