Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/raster/RasterToPPM.java @ 593:b248531fa20b

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Added experimental support for extrapolation in "Horizontalschnitte" gnv-artifacts/trunk@648 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 31 Jan 2010 21:50:15 +0000
parents 6e8364e766fa
children b1f5f2a8840f
rev   line source
495
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.gnv.raster;
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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2
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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3 import java.io.IOException;
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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4 import java.io.OutputStream;
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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5
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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6 import java.awt.Color;
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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7
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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8 /**
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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9 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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10 */
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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11 public class RasterToPPM
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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12 {
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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13 private RasterToPPM() {
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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14 }
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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15
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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16 public static void writeToPPM(Raster raster, Palette palette, OutputStream out)
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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17 throws IOException
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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18 {
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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19 int W = raster.getWidth();
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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20 int H = raster.getHeight();
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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21 out.write(("P6\n" + W + " " + H + "\n255\n").getBytes("US-ASCII"));
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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22 double [] values = raster.getValues();
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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23 int pos = 0;
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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24 byte [] data = new byte[W*3];
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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25 int black = Color.BLACK.getRGB();
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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26 for (int i = 0; i < H; ++i) {
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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27 for (int j = 0; j < data.length; ++pos) {
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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28 Palette.Entry entry = palette.getEntry(values[pos]);
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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29 int rgb = entry == null
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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30 ? black
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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31 : entry.getColor().getRGB();
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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32 data[j++] = (byte)((rgb >> 16) & 0xff);
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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33 data[j++] = (byte)((rgb >> 8) & 0xff);
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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34 data[j++] = (byte)( rgb & 0xff);
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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35 }
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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36 out.write(data);
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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37 }
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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38 out.flush();
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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39 }
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
40 }
6e8364e766fa Generate JTS geometries of "Horizontalschnitte" correctly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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41 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org