Class SweepLineSegment

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4	/*
5	* Copyright (c) 2016 Vivid Solutions.
6	*
7	* All rights reserved. This program and the accompanying materials
8	* are made available under the terms of the Eclipse Public License 2.0
9	* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
10	* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v20.html
11	* and the Eclipse Distribution License is available at
12	*
13	* http://www.eclipse.org/org/documents/edl-v10.php.
14	*/
15	package org.locationtech.jts.geomgraph.index;
16
17	import org.locationtech.jts.geom.Coordinate;
18	import org.locationtech.jts.geomgraph.Edge;
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20
21	/**
22	* @version 1.7
23	*/
24	public class SweepLineSegment {
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26	Edge edge;
27	Coordinate[] pts;
28	int ptIndex;
29
30	public SweepLineSegment(Edge edge, int ptIndex) {
31	this.edge = edge;
32	this.ptIndex = ptIndex;
33	pts = edge.getCoordinates();
34	}
35
36	public double getMinX()
37	{
38	double x1 = pts[ptIndex].x;
39	double x2 = pts[ptIndex + 1].x;
40	return x1 < x2 ? x1 : x2;
41	}
42	public double getMaxX()
43	{
44	double x1 = pts[ptIndex].x;
45	double x2 = pts[ptIndex + 1].x;
46	return x1 > x2 ? x1 : x2;
47	}
48	public void computeIntersections(SweepLineSegment ss, SegmentIntersector si)
49	{
50	si.addIntersections(edge, ptIndex, ss.edge, ss.ptIndex);
51	}
52
53	}
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