Mercurial > dive4elements > gnv-client
view gnv-artifacts/src/main/java/de/intevation/gnv/raster/RasterToPPM.java @ 631:f4331a0df032
Chart and histogram output are working without using a cache.
gnv-artifacts/trunk@710 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 25 Feb 2010 08:23:46 +0000 |
parents | 6e8364e766fa |
children | b1f5f2a8840f |
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package de.intevation.gnv.raster; import java.io.IOException; import java.io.OutputStream; import java.awt.Color; /** * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) */ public class RasterToPPM { private RasterToPPM() { } public static void writeToPPM(Raster raster, Palette palette, OutputStream out) throws IOException { int W = raster.getWidth(); int H = raster.getHeight(); out.write(("P6\n" + W + " " + H + "\n255\n").getBytes("US-ASCII")); double [] values = raster.getValues(); int pos = 0; byte [] data = new byte[W*3]; int black = Color.BLACK.getRGB(); for (int i = 0; i < H; ++i) { for (int j = 0; j < data.length; ++pos) { Palette.Entry entry = palette.getEntry(values[pos]); int rgb = entry == null ? black : entry.getColor().getRGB(); data[j++] = (byte)((rgb >> 16) & 0xff); data[j++] = (byte)((rgb >> 8) & 0xff); data[j++] = (byte)( rgb & 0xff); } out.write(data); } out.flush(); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :