Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/profile/verticalcrosssection/OutputHelper.java @ 1094:e71e982772a9

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Adjusted the subtitle of the product 'Achsenparalleles Vertikalprofil' (issue250). gnv-artifacts/trunk@1209 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 14 Jun 2010 09:56:34 +0000
parents 9058c08eac3a
children f953c9a559d8
rev   line source
521
1bf058f1a2d1 Generate seabed polygon to "Profilschnitte".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 package de.intevation.gnv.state.profile.verticalcrosssection;
1bf058f1a2d1 Generate seabed polygon to "Profilschnitte".
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2
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3 import de.intevation.gnv.jfreechart.CompactXYItems;
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4 import de.intevation.gnv.jfreechart.PolygonSeries;
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5
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6 import de.intevation.gnv.math.Interpolation3D;
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7
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8 import gnu.trove.TDoubleArrayList;
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9
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10 import org.apache.log4j.Logger;
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11
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12 /**
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13 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
521
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14 */
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15 public class OutputHelper
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16 {
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17 private static Logger log = Logger.getLogger(OutputHelper.class);
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18
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19 public static final double EPS = 1e-5d;
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20
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21 private OutputHelper() {
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22 }
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23
804
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24
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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25 /**
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26 * Creates a PolygonSeries representing the seabed used to be displayed in a
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27 * 2D-chart.
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28 *
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29 * @param interpolation The interpolation which supports information about
9058c08eac3a Added more Javadoc in some classes of state.profile.
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30 * the max depth, the cell width and height.
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31 * @param fill The fill color as integer.
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32 * @return a PolygonSeries representing the seabed.
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33 */
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34 public static PolygonSeries createSeabedPolygon(
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35 Interpolation3D interpolation,
1bf058f1a2d1 Generate seabed polygon to "Profilschnitte".
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36 Integer fill
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37 ) {
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38 double maxDepth = interpolation.getMaxDepth();
1bf058f1a2d1 Generate seabed polygon to "Profilschnitte".
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39 double cellWidth = interpolation.getCellWidth();
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40 double cellHeight = interpolation.getCellHeight();
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41
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42 double [] depths = interpolation.getDepths();
1bf058f1a2d1 Generate seabed polygon to "Profilschnitte".
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43
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44 double x = 0d;
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45
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46 TDoubleArrayList vertices = new TDoubleArrayList();
1bf058f1a2d1 Generate seabed polygon to "Profilschnitte".
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47
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48 PolygonSeries ps = new PolygonSeries();
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49
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50 for (int i = 0; i < depths.length; ++i, x += cellWidth) {
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51 double depth = depths[i];
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52
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53 if (vertices.isEmpty()) {
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54 if (Double.isNaN(depth) || depth == maxDepth) {
1bf058f1a2d1 Generate seabed polygon to "Profilschnitte".
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55 continue;
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56 }
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57 if (depth > 0d) depth = 0d;
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58 vertices.add(x); vertices.add(maxDepth);
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59 vertices.add(x); vertices.add(depth);
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60 vertices.add(x+cellWidth); vertices.add(depth);
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61 }
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62 else { // in polygon
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63 if (Double.isNaN(depth) || depth == maxDepth) {
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64 vertices.add(x); vertices.add(maxDepth);
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65 ps.addRing(new CompactXYItems(vertices.toNativeArray()));
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66 vertices.reset();
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67 }
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68 else {
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69 if (depth > 0d) depth = 0d;
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70 int N = vertices.size();
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71 if (N > 2 && Math.abs(depth - vertices.get(N-1)) < EPS) {
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72 vertices.set(N-2, x+cellWidth);
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73 }
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74 else {
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75 vertices.add(vertices.get(N-2)); vertices.add(depth);
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76 vertices.add(x+cellWidth); vertices.add(depth);
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77 }
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78 }
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79 }
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80 } // for all depths
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81
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82 if (!vertices.isEmpty()) {
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83 vertices.add(vertices.get(vertices.size()-2));
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84 vertices.add(maxDepth);
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85 ps.addRing(new CompactXYItems(vertices.toNativeArray()));
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86 }
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87
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88 if (ps.getItemCount() == 0) {
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89 return null;
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90 }
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91
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92 ps.setAttribute("fill", fill);
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93
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94 return ps;
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95 }
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96 }
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97 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org