Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Range.java @ 3318:dbe2f85bf160
merged flys-artifacts/2.8
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:14:35 +0200 |
| parents | 9c147bbffc36 |
| children | 086326be721c |
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| 2987:98c7a46ec5ae | 3318:dbe2f85bf160 |
|---|---|
| 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(double start, double end) { | |
| 16 this.start = start; | |
| 17 this.end = end; | |
| 18 } | |
| 19 | |
| 20 public double getStart() { | |
| 21 return start; | |
| 22 } | |
| 23 | |
| 24 public double getEnd() { | |
| 25 return end; | |
| 26 } | |
| 27 | |
| 28 public boolean disjoint(Range other) { | |
| 29 return start > other.end || other.start > end; | |
| 30 } | |
| 31 | |
| 32 public boolean intersects(Range other) { | |
| 33 return !disjoint(other); | |
| 34 } | |
| 35 | |
| 36 public void extend(Range other) { | |
| 37 if (other.start < start) start = other.start; | |
| 38 if (other.end > end ) end = other.end; | |
| 39 } | |
| 40 | |
| 41 public boolean clip(Range other) { | |
| 42 if (disjoint(other)) return false; | |
| 43 | |
| 44 if (other.start > start) start = other.start; | |
| 45 if (other.end < end ) end = other.end; | |
| 46 | |
| 47 return true; | |
| 48 } | |
| 49 | |
| 50 public boolean inside(double x) { | |
| 51 return x > start-EPSILON && x < end+EPSILON; | |
| 52 } | |
| 53 } | |
| 54 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |