Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/raster/IsoAttributeGenerator.java @ 540:80630520e25a
merged gnv-artifacts/0.4
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:13:49 +0200 |
| parents | f7038820df2e |
| children | c4156275c1e1 |
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| 415:9f4a0b990d27 | 540:80630520e25a |
|---|---|
| 1 package de.intevation.gnv.raster; | |
| 2 | |
| 3 /** | |
| 4 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) | |
| 5 */ | |
| 6 public class IsoAttributeGenerator | |
| 7 implements IsoProducer.AttributeGenerator | |
| 8 { | |
| 9 protected Palette palette; | |
| 10 | |
| 11 public IsoAttributeGenerator() { | |
| 12 } | |
| 13 | |
| 14 public IsoAttributeGenerator(Palette palette) { | |
| 15 this.palette = palette; | |
| 16 } | |
| 17 | |
| 18 public Object generateAttribute(int neighbor1, int neighbor2) { | |
| 19 Palette.Entry e1 = palette.getEntryByIndex(neighbor1); | |
| 20 Palette.Entry e2 = palette.getEntryByIndex(neighbor2); | |
| 21 | |
| 22 if (e1 == null || e2 == null) { | |
| 23 return null; | |
| 24 } | |
| 25 | |
| 26 double e1t = e1.getFrom(); | |
| 27 double e2f = e2.getTo(); | |
| 28 | |
| 29 return Double.valueOf(e2f >= e1t | |
| 30 ? 0.5d*(e1t+e2f) | |
| 31 : 0.5d*(e2.getTo()+e1.getFrom())); | |
| 32 } | |
| 33 } | |
| 34 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8: |