Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/jfree/DoubleBounds.java @ 3786:4adc35aa655c
merged flys-artifacts/2.9.1
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:14:47 +0200 |
| parents | 7b14d00bca8a |
| children | 2f6d4f92d628 |
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| 3719:e82acd5c86f7 | 3786:4adc35aa655c |
|---|---|
| 1 package de.intevation.flys.jfree; | |
| 2 | |
| 3 | |
| 4 import org.jfree.chart.axis.ValueAxis; | |
| 5 import org.jfree.data.Range; | |
| 6 | |
| 7 | |
| 8 /** | |
| 9 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 10 */ | |
| 11 public class DoubleBounds implements Bounds { | |
| 12 | |
| 13 protected double lower; | |
| 14 protected double upper; | |
| 15 | |
| 16 | |
| 17 /** | |
| 18 * Default constructor. <b>A DoubleBounds has always set lower < | |
| 19 * upper!</b> | |
| 20 */ | |
| 21 public DoubleBounds(double lower, double upper) { | |
| 22 this.lower = Math.min(lower, upper); | |
| 23 this.upper = Math.max(lower, upper); | |
| 24 } | |
| 25 | |
| 26 | |
| 27 @Override | |
| 28 public Number getLower() { | |
| 29 return Double.valueOf(lower); | |
| 30 } | |
| 31 | |
| 32 | |
| 33 @Override | |
| 34 public Number getUpper() { | |
| 35 return Double.valueOf(upper); | |
| 36 } | |
| 37 | |
| 38 | |
| 39 @Override | |
| 40 public void applyBounds(ValueAxis axis) { | |
| 41 axis.setRange(new Range(lower, upper)); | |
| 42 } | |
| 43 | |
| 44 | |
| 45 /** | |
| 46 * Set extended range to ValueAxis. | |
| 47 * @param percent how many percent to extend (in each direction, | |
| 48 * thus 10 percent on [0,100] -> [-10,110]. | |
| 49 */ | |
| 50 @Override | |
| 51 public void applyBounds(ValueAxis axis, int percent) { | |
| 52 double space = (upper - lower) / 100 * percent; | |
| 53 axis.setRange(new Range(lower-space, upper+space)); | |
| 54 } | |
| 55 | |
| 56 | |
| 57 @Override | |
| 58 public Bounds combine(Bounds bounds) { | |
| 59 if (bounds == null) { | |
| 60 return this; | |
| 61 } | |
| 62 | |
| 63 DoubleBounds other = (DoubleBounds) bounds; | |
| 64 | |
| 65 double otherLower = other.getLower().doubleValue(); | |
| 66 double otherUpper = other.getUpper().doubleValue(); | |
| 67 | |
| 68 return new DoubleBounds( | |
| 69 otherLower < lower ? otherLower : lower, | |
| 70 otherUpper > upper ? otherUpper : upper); | |
| 71 } | |
| 72 | |
| 73 | |
| 74 @Override | |
| 75 public String toString() { | |
| 76 return "DoubleBounds=[" + lower + " ; " + upper + "]"; | |
| 77 } | |
| 78 } | |
| 79 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |