Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Range.java @ 3651:06a65baae494
merged flys-artifacts/2.9
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:14:43 +0200 |
| parents | 086326be721c |
| children | 51f76225823b |
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| 3549:6a8f83c538e3 | 3651:06a65baae494 |
|---|---|
| 1 package de.intevation.flys.artifacts.model; | |
| 2 | |
| 3 import java.io.Serializable; | |
| 4 | |
| 5 public class Range implements Serializable { | |
| 6 | |
| 7 public static final double EPSILON = 1e-5; | |
| 8 | |
| 9 protected double start; | |
| 10 protected double end; | |
| 11 | |
| 12 public Range() { | |
| 13 } | |
| 14 | |
| 15 public Range(Range other) { | |
| 16 start = other.start; | |
| 17 end = other.end; | |
| 18 } | |
| 19 | |
| 20 public Range(double start, double end) { | |
| 21 this.start = start; | |
| 22 this.end = end; | |
| 23 } | |
| 24 | |
| 25 public double getStart() { | |
| 26 return start; | |
| 27 } | |
| 28 | |
| 29 public double getEnd() { | |
| 30 return end; | |
| 31 } | |
| 32 | |
| 33 public boolean disjoint(Range other) { | |
| 34 return start > other.end || other.start > end; | |
| 35 } | |
| 36 | |
| 37 public boolean intersects(Range other) { | |
| 38 return !disjoint(other); | |
| 39 } | |
| 40 | |
| 41 public void extend(Range other) { | |
| 42 if (other.start < start) start = other.start; | |
| 43 if (other.end > end ) end = other.end; | |
| 44 } | |
| 45 | |
| 46 public boolean clip(Range other) { | |
| 47 if (disjoint(other)) return false; | |
| 48 | |
| 49 if (other.start > start) start = other.start; | |
| 50 if (other.end < end ) end = other.end; | |
| 51 | |
| 52 return true; | |
| 53 } | |
| 54 | |
| 55 public boolean inside(double x) { | |
| 56 return x > start-EPSILON && x < end+EPSILON; | |
| 57 } | |
| 58 } | |
| 59 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |