1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
package de.lmu.ifi.dbs.elki.data;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2013
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.utilities.FormatUtil;
/**
* Represents an interval in a certain dimension of the data space.
*
* @author Elke Achtert
*/
public class Interval implements Comparable<Interval> {
/**
* The dimension of this interval in the (original) data space.
*/
private int dimension;
/**
* The minimum (left) value of this interval.
*/
private double min;
/**
* The maximum (right) value of this interval.
*/
private double max;
/**
* Creates a new interval with the specified parameters.
*
* @param dimension the dimension of the interval in the original data space
* @param min the minimum (left) value of the interval
* @param max the maximum (right) value of the interval
*/
public Interval(int dimension, double min, double max) {
this.dimension = dimension;
this.min = min;
this.max = max;
}
/**
* Returns the dimension of the interval in the original data space
*
* @return the dimension of the interval in the original data space
*/
public int getDimension() {
return dimension;
}
/**
* Returns the minimum (left) value of the interval.
*
* @return the minimum (left) value of the interval
*/
public double getMin() {
return min;
}
/**
* Returns the maximum (right) value of the interval.
*
* @return the maximum (right) value of the interval
*/
public double getMax() {
return max;
}
/**
* Returns a string representation of this interval. The string representation
* consists of the dimension and the min and max values of this interval.
*
* @return a string representation of this interval
*/
@Override
public String toString() {
return "d" + (dimension + 1) + "-[" + FormatUtil.format(min, 2) + "; " + FormatUtil.format(max, 2) + "[";
}
/**
* Compares this interval with the specified interval for order. Returns a
* negative integer, zero, or a positive integer as this interval is less
* than, equal to, or greater than the specified interval. First the
* dimensions of the intervals are compared. In case of equality the min
* (left) values are compared.
*
* @param other the interval to be compared
* @return a negative integer, zero, or a positive integer as this object is
* less than, equal to, or greater than the specified object.
*/
@Override
public int compareTo(Interval other) {
if(dimension < other.dimension) {
return -1;
}
if(dimension > other.dimension) {
return 1;
}
if(min < other.min) {
return -1;
}
if(min > other.min) {
return 1;
}
if(max != other.max) {
throw new RuntimeException("Should never happen!");
}
return 0;
}
}
|
