Class Interval

1
2	/*
3	* Copyright (c) 2016 Vivid Solutions.
4	*
5	* All rights reserved. This program and the accompanying materials
6	* are made available under the terms of the Eclipse Public License 2.0
7	* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
8	* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v20.html
9	* and the Eclipse Distribution License is available at
10	*
11	* http://www.eclipse.org/org/documents/edl-v10.php.
12	*/
13	package org.locationtech.jts.index.bintree;
14
15	/**
16	* Represents an (1-dimensional) closed interval on the Real number line.
17	*
18	* @version 1.7
19	*/
20	public class Interval {
21
22	public double min, max;
23
24	public Interval()
25	{
26	min = 0.0;
27	max = 0.0;
28	}
29
30	public Interval(double min, double max)
31	{
32	init(min, max);
33	}
34	public Interval(Interval interval)
35	{
36	init(interval.min, interval.max);
37	}
38	public void init(double min, double max)
39	{
40	this.min = min;
41	this.max = max;
42	if (min > max) {
43	this.min = max;
44	this.max = min;
45	}
46	}
47	public double getMin() { return min; }
48	public double getMax() { return max; }
49	public double getWidth() { return max - min; }
50
51	public void expandToInclude(Interval interval)
52	{
53	if (interval.max > max) max = interval.max;
54	if (interval.min < min) min = interval.min;
55	}
56	public boolean overlaps(Interval interval)
57	{
58	return overlaps(interval.min, interval.max);
59	}
60
61	public boolean overlaps(double min, double max)
62	{
63	if (this.min > max \|\| this.max < min) return false;
64	return true;
65	}
66
67	public boolean contains(Interval interval)
68	{
69	return contains(interval.min, interval.max);
70	}
71	public boolean contains(double min, double max)
72	{
73	return (min >= this.min && max <= this.max);
74	}
75	public boolean contains(double p)
76	{
77	return (p >= this.min && p <= this.max);
78	}
79
80	public String toString()
81	{
82	return "[" + min + ", " + max + "]";
83	}
84	}
85