Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/math/Interpolation3D.java @ 515:234d9892e497

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Fixed "Profilschnitte" for gnv/issue153. gnv-artifacts/trunk@609 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 22 Jan 2010 18:51:47 +0000
parents 537e663d6c0c
children 464e03bf786b
rev   line source
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
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parents:
diff changeset
1 package de.intevation.gnv.math;
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2
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3 import com.vividsolutions.jts.geom.Coordinate;
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4 import com.vividsolutions.jts.geom.Envelope;
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5
515
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6 import com.vividsolutions.jts.index.strtree.STRtree;
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7
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
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8 import java.awt.Dimension;
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9
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
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10 import java.io.Serializable;
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11
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
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12 import java.util.Arrays;
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13 import java.util.List;
434
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14
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
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15 import org.apache.log4j.Logger;
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16
445
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17 /**
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18 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
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19 */
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20 public class Interpolation3D
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21 implements Serializable
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22 {
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23 private static Logger log = Logger.getLogger(Interpolation3D.class);
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24
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25 public static final int DEFAULT_WIDTH = 1024;
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26 public static final int DEFAULT_HEIGHT = 768;
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27
515
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28 public static final double EPS = 1e-6d;
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29
434
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30 protected int width;
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31 protected int height;
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32
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33 protected double [] raster;
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34 protected double [] depths;
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35
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36 public Interpolation3D() {
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37 this(DEFAULT_WIDTH, DEFAULT_HEIGHT);
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38 }
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39
445
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40 public Interpolation3D(Dimension size) {
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41 this(size.width, size.height);
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42 }
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43
434
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44 public Interpolation3D(int width, int height) {
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
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45 this.width = width;
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46 this.height = height;
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47 }
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48
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49 public int getHeight() {
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50 return height;
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51 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
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52
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53 public int getWidth() {
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54 return width;
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55 }
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56
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57 public double [] getRaster() {
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58 return raster;
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59 }
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60
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61 public double [] getDepths() {
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62 return depths;
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63 }
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64
445
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65 public double getMaxDepth() {
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66 double maxDepth = Double.MAX_VALUE;
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67 for (int i = depths!=null?depths.length-1:0; i >= 0; --i) {
446
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68 double d = depths[i];
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69 if (!Double.isNaN(d) && d < maxDepth) {
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70 maxDepth = d;
445
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71 }
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72 }
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73 return maxDepth;
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74 }
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75
434
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76 public boolean interpolate(
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77 List<? extends Coordinate> path,
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78 List<? extends XYColumn> points,
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79 double from,
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80 double to,
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81 Metrics metrics,
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82 XYDepth xyDepth
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83 ) {
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84 boolean debug = log.isDebugEnabled();
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85
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86 int N = path.size();
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87 int M = points.size();
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88
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89 if (debug) {
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90 log.debug("Size of path: " + N);
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91 log.debug("Size of points: " + M);
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92 }
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93
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94 if (M < 1 || N < 2) { // nothing to do
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95 return false;
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96 }
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97
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98 List<GridCell> cells = GridCell.pointsToGridCells(points);
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99
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100 if (cells.isEmpty()) {
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101 log.warn("no cells found");
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102 return false;
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103 }
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104
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105 // put into spatial index to speed up finding neighbors.
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106 STRtree spatialIndex = new STRtree();
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107
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108 for (GridCell cell: cells) {
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109 spatialIndex.insert(cell.getEnvelope(), cell);
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110 }
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111
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112 LinearToMap linearToMap = new LinearToMap(
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113 path, from, to, metrics);
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114
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115 double [] depths = new double[width];
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116 Arrays.fill(depths, Double.NaN);
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117
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118 double cellWidth = (to - from)/width;
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119
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120 double maxDepth = Double.MAX_VALUE;
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121
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122 int i = 0;
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123 Coordinate center = new Coordinate();
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
124 for (double p = cellWidth*0.5; i < depths.length; ++i, p += cellWidth) {
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
125 if (linearToMap.locate(p, center)) {
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
126 double depth = xyDepth.depth(center);
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
127 depths[i] = depth;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
128 if (depth < maxDepth) {
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
129 maxDepth = depth;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
130 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
131 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
132 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
133
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
134 if (maxDepth == Double.MAX_VALUE) {
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
135 log.warn("no depth found -> no interpolation");
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
136 return false;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
137 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
138
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
139 double cellHeight = Math.abs(maxDepth)/height;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
140
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
141 if (debug) {
445
f42ed4f10b79 Fixed some bugs and create "Profilschnitt" polygons via configuration.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 434
diff changeset
142 log.debug("max depth found: " + maxDepth);
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
143 log.debug("cell size: " + cellWidth + " x " + cellHeight);
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
144 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
145
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
146 double [] raster = new double[width*height];
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
147 Arrays.fill(raster, Double.NaN);
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
148
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
149 Envelope queryBuffer = new Envelope();
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
150 GridCell.CellFinder finder = new GridCell.CellFinder();
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
151
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
152 i = 0;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
153 for (double p = cellWidth*0.5; i < depths.length; ++i, p += cellWidth) {
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
154 double depth = depths[i];
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
155 if (Double.isNaN(depth)) {
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
156 continue;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
157 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
158 linearToMap.locate(p, center);
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
159
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
160 queryBuffer.init(
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
161 center.x - EPS, center.x + EPS,
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
162 center.y - EPS, center.y + EPS);
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
163
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
164 finder.prepare(center);
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
165 spatialIndex.query(queryBuffer, finder);
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
166
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
167 GridCell found = finder.found;
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
168
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
169 if (found == null) {
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
170 continue;
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
171 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
172
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
173 XYColumn n0 = (XYColumn)found.p1;
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
174 XYColumn n1 = (XYColumn)found.p2;
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
175 XYColumn n2 = (XYColumn)found.p3;
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
176 XYColumn n3 = (XYColumn)found.p4;
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
177
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
178 if (n0.prepare(xyDepth)
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
179 && n1.prepare(xyDepth)
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
180 && n2.prepare(xyDepth)
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
181 && n3.prepare(xyDepth)
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
182 ) {
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
183 double y1 = Interpolation2D.interpolate(
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
184 n0.x, n0.y,
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
185 n1.x, n1.y,
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
186 center.x);
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
187 double y2 = Interpolation2D.interpolate(
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
188 n2.x, n2.y,
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
189 n3.x, n3.y,
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
190 center.x);
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
191 int j = i;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
192 for (double z = -cellHeight*0.5;
453
537e663d6c0c vertical cross section: Fixed problem with running to max depth on every column in interpolation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 446
diff changeset
193 j < raster.length && z >= depth;
537e663d6c0c vertical cross section: Fixed problem with running to max depth on every column in interpolation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 446
diff changeset
194 z -= cellHeight, j += width) {
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
195
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
196 double v0 = n0.value(z);
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
197 double v1 = n1.value(z);
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
198 double v2 = n2.value(z);
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
199 double v3 = n3.value(z);
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
200
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
201 double z1 = Interpolation2D.interpolate(
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
202 n0.x, v0,
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
203 n1.x, v1,
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
204 center.x);
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
205 double z2 = Interpolation2D.interpolate(
515
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
206 n2.x, v2,
234d9892e497 Fixed "Profilschnitte" for gnv/issue153.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 453
diff changeset
207 n3.x, v3,
434
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
208 center.x);
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
209 double value = Interpolation2D.interpolate(
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
210 y1, z1,
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
211 y2, z2,
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
212 center.y);
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
213 raster[j] = value;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
214 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
215 } // down the x/y column
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
216 } // all along the track
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
217
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
218 this.depths = depths;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
219 this.raster = raster;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
220
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
221 return true;
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
222 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
223 }
0eed5749fd63 Implemented the raster interpolation for the 'Profilschnitt'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
224 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org