Class DissolveHalfEdge

1	/*
2	* Copyright (c) 2016 Vivid Solutions.
3	*
4	* All rights reserved. This program and the accompanying materials
5	* are made available under the terms of the Eclipse Public License 2.0
6	* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
7	* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v20.html
8	* and the Eclipse Distribution License is available at
9	*
10	* http://www.eclipse.org/org/documents/edl-v10.php.
11	*/
12
13	package org.locationtech.jts.dissolve;
14
15	import org.locationtech.jts.edgegraph.MarkHalfEdge;
16	import org.locationtech.jts.geom.Coordinate;
17
18
19	/**
20	* A HalfEdge which carries information
21	* required to support {@link LineDissolver}.
22	*
23	* @author Martin Davis
24	*
25	*/
26	class DissolveHalfEdge extends MarkHalfEdge
27	{
28	private boolean isStart = false;
29
30	public DissolveHalfEdge(Coordinate orig) {
31	super(orig);
32	}
33
34	/**
35	* Tests whether this edge is the starting segment
36	* in a LineString being dissolved.
37	*
38	* @return true if this edge is a start segment
39	*/
40	public boolean isStart()
41	{
42	return isStart;
43	}
44
45	/**
46	* Sets this edge to be the start segment of an input LineString.
47	*/
48	public void setStart()
49	{
50	isStart = true;
51	}
52	}
53