/*
* Copyright (c) 2016 Vivid Solutions.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
*
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.locationtech.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;
}
}