Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/raster/IsoAttributeGenerator.java @ 448:3cb2bea50456
Generate iso line classes according gnv-issues/issue108
gnv-artifacts/trunk@496 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Sun, 03 Jan 2010 12:16:55 +0000 |
| parents | |
| children | f7038820df2e |
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| 447:92b7ccbf6163 | 448:3cb2bea50456 |
|---|---|
| 1 package de.intevation.gnv.raster; | |
| 2 | |
| 3 public class IsoAttributeGenerator | |
| 4 implements IsoPolygonSeriesProducer.AttributeGenerator | |
| 5 { | |
| 6 protected Palette palette; | |
| 7 | |
| 8 public IsoAttributeGenerator() { | |
| 9 } | |
| 10 | |
| 11 public IsoAttributeGenerator(Palette palette) { | |
| 12 this.palette = palette; | |
| 13 } | |
| 14 | |
| 15 public Object generateAttribute(int neighbor1, int neighbor2) { | |
| 16 Palette.Entry e1 = palette.getEntryByIndex(neighbor1); | |
| 17 Palette.Entry e2 = palette.getEntryByIndex(neighbor2); | |
| 18 | |
| 19 if (e1 == null || e2 == null) { | |
| 20 return null; | |
| 21 } | |
| 22 | |
| 23 double e1t = e1.getFrom(); | |
| 24 double e2f = e2.getTo(); | |
| 25 | |
| 26 return Double.valueOf(e2f >= e1t | |
| 27 ? 0.5d*(e1t+e2f) | |
| 28 : 0.5d*(e2.getTo()+e1.getFrom())); | |
| 29 } | |
| 30 } | |
| 31 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8: |