Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/raster/RasterToPPM.java @ 657:af3f56758f59
merged gnv-artifacts/0.5
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:13:53 +0200 |
| parents | 6e8364e766fa |
| children | b1f5f2a8840f |
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| 590:5f5f273c8566 | 657:af3f56758f59 |
|---|---|
| 1 package de.intevation.gnv.raster; | |
| 2 | |
| 3 import java.io.IOException; | |
| 4 import java.io.OutputStream; | |
| 5 | |
| 6 import java.awt.Color; | |
| 7 | |
| 8 /** | |
| 9 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) | |
| 10 */ | |
| 11 public class RasterToPPM | |
| 12 { | |
| 13 private RasterToPPM() { | |
| 14 } | |
| 15 | |
| 16 public static void writeToPPM(Raster raster, Palette palette, OutputStream out) | |
| 17 throws IOException | |
| 18 { | |
| 19 int W = raster.getWidth(); | |
| 20 int H = raster.getHeight(); | |
| 21 out.write(("P6\n" + W + " " + H + "\n255\n").getBytes("US-ASCII")); | |
| 22 double [] values = raster.getValues(); | |
| 23 int pos = 0; | |
| 24 byte [] data = new byte[W*3]; | |
| 25 int black = Color.BLACK.getRGB(); | |
| 26 for (int i = 0; i < H; ++i) { | |
| 27 for (int j = 0; j < data.length; ++pos) { | |
| 28 Palette.Entry entry = palette.getEntry(values[pos]); | |
| 29 int rgb = entry == null | |
| 30 ? black | |
| 31 : entry.getColor().getRGB(); | |
| 32 data[j++] = (byte)((rgb >> 16) & 0xff); | |
| 33 data[j++] = (byte)((rgb >> 8) & 0xff); | |
| 34 data[j++] = (byte)( rgb & 0xff); | |
| 35 } | |
| 36 out.write(data); | |
| 37 } | |
| 38 out.flush(); | |
| 39 } | |
| 40 } | |
| 41 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |