Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/raster/ExternalIndexConverter.java @ 802:4abe172be970
Finished Javadoc of the raster package.
gnv-artifacts/trunk@884 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Wed, 07 Apr 2010 07:49:12 +0000 |
| parents | c4156275c1e1 |
| children | feae2f9d6c6f |
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| 801:d766fe2d917a | 802:4abe172be970 |
|---|---|
| 1 package de.intevation.gnv.raster; | 1 package de.intevation.gnv.raster; |
| 2 | 2 |
| 3 import org.apache.log4j.Logger; | 3 import org.apache.log4j.Logger; |
| 4 | 4 |
| 5 /** | 5 /** |
| 6 * Converts the interal color index of a polygon to the external index | |
| 7 * defined by the corresponding palette entry. | |
| 8 * | |
| 6 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | 9 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> |
| 7 */ | 10 */ |
| 8 public class ExternalIndexConverter | 11 public class ExternalIndexConverter |
| 9 implements JTSMultiPolygonProducer.ValueConverter | 12 implements JTSMultiPolygonProducer.ValueConverter |
| 10 { | 13 { |
| 11 private static Logger log = Logger.getLogger( | 14 private static Logger log = Logger.getLogger( |
| 12 ExternalIndexConverter.class); | 15 ExternalIndexConverter.class); |
| 13 | 16 |
| 17 /** | |
| 18 * The palette where to find the color indices. | |
| 19 */ | |
| 14 protected Palette palette; | 20 protected Palette palette; |
| 15 | 21 |
| 22 /** | |
| 23 * Default constructor. | |
| 24 */ | |
| 16 public ExternalIndexConverter() { | 25 public ExternalIndexConverter() { |
| 17 } | 26 } |
| 18 | 27 |
| 28 /** | |
| 29 * Constrcutor to create an ExternalIndexConverter with | |
| 30 * a given palette. | |
| 31 * @param palette The palette where to find the color indices. | |
| 32 */ | |
| 19 public ExternalIndexConverter(Palette palette) { | 33 public ExternalIndexConverter(Palette palette) { |
| 20 this.palette = palette; | 34 this.palette = palette; |
| 21 } | 35 } |
| 22 | 36 |
| 37 /** | |
| 38 * Maps the color index of a polygon to the external index | |
| 39 * defined by the corresponing palette entry. | |
| 40 * @param value The value to convert | |
| 41 * @return The mapped value or the original value if | |
| 42 * no corresponing palette entry was found. | |
| 43 */ | |
| 23 public Integer convert(Integer value) { | 44 public Integer convert(Integer value) { |
| 24 if (value == null) { | 45 if (value == null) { |
| 25 return value; | 46 return value; |
| 26 } | 47 } |
| 27 | 48 |