Class MonotoneChainOverlapAction

1
2
3	/*
4	* Copyright (c) 2016 Vivid Solutions.
5	*
6	* All rights reserved. This program and the accompanying materials
7	* are made available under the terms of the Eclipse Public License 2.0
8	* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
9	* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v20.html
10	* and the Eclipse Distribution License is available at
11	*
12	* http://www.eclipse.org/org/documents/edl-v10.php.
13	*/
14	package org.locationtech.jts.index.chain;
15
16	import org.locationtech.jts.geom.LineSegment;
17
18	/**
19	* The action for the internal iterator for performing
20	* overlap queries on a MonotoneChain
21	*
22	* @version 1.7
23	*/
24	public class MonotoneChainOverlapAction
25	{
26	protected LineSegment overlapSeg1 = new LineSegment();
27	protected LineSegment overlapSeg2 = new LineSegment();
28
29	/**
30	* This function can be overridden if the original chains are needed
31	*
32	* @param start1 the index of the start of the overlapping segment from mc1
33	* @param start2 the index of the start of the overlapping segment from mc2
34	*/
35	public void overlap(MonotoneChain mc1, int start1, MonotoneChain mc2, int start2)
36	{
37	mc1.getLineSegment(start1, overlapSeg1);
38	mc2.getLineSegment(start2, overlapSeg2);
39	overlap(overlapSeg1, overlapSeg2);
40	}
41
42	/**
43	* This is a convenience function which can be overridden to obtain the actual
44	* line segments which overlap
45	* @param seg1
46	* @param seg2
47	*/
48	public void overlap(LineSegment seg1, LineSegment seg2)
49	{
50	}
51	}
52