1 | //License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.projection;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.awt.event.ActionListener;
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7 | import java.util.Collection;
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8 | import java.util.Collections;
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9 |
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10 | import javax.swing.Box;
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11 | import javax.swing.JPanel;
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12 |
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13 | import org.openstreetmap.josm.data.Bounds;
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14 | import org.openstreetmap.josm.data.coor.LatLon;
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15 | import org.openstreetmap.josm.data.projection.datum.ThreeParameterDatum;
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16 | import org.openstreetmap.josm.data.projection.proj.ProjParameters;
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17 | import org.openstreetmap.josm.data.projection.proj.SwissObliqueMercator;
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18 | import org.openstreetmap.josm.gui.widgets.HtmlPanel;
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19 | import org.openstreetmap.josm.tools.GBC;
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20 |
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21 | /**
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22 | * SwissGrid CH1903 / L03, see http://de.wikipedia.org/wiki/Swiss_Grid.
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23 | *
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24 | * Actually, what we have here, is CH1903+ (EPSG:2056), but without
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25 | * the additional false easting of 2000km and false northing 1000 km.
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26 | *
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27 | * To get to CH1903, a shift file is required. So currently, there are errors
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28 | * up to 1.6m (depending on the location).
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29 | *
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30 | * This projection does not have any parameters, it only implements
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31 | * ProjectionSubPrefs to show a warning that the grid file correction is not done.
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32 | */
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33 | public class SwissGrid extends AbstractProjection implements ProjectionSubPrefs {
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34 |
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35 | public SwissGrid() {
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36 | ellps = Ellipsoid.Bessel1841;
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37 | datum = new ThreeParameterDatum("SwissGrid Datum", null, ellps, 674.374, 15.056, 405.346);
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38 | x_0 = 600000;
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39 | y_0 = 200000;
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40 | lon_0 = 7.0 + 26.0/60 + 22.50/3600;
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41 | proj = new SwissObliqueMercator();
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42 | try {
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43 | proj.initialize(new ProjParameters() {{
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44 | ellps = SwissGrid.this.ellps;
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45 | lat_0 = 46.0 + 57.0/60 + 8.66/3600;
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46 | }});
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47 | } catch (ProjectionConfigurationException e) {
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48 | throw new RuntimeException(e);
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49 | }
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50 | }
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51 |
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52 | @Override
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53 | public String toString() {
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54 | return tr("Swiss Grid (Switzerland)");
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55 | }
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56 |
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57 | @Override
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58 | public Integer getEpsgCode() {
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59 | return 21781;
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60 | }
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61 |
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62 | @Override
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63 | public int hashCode() {
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64 | return getClass().getName().hashCode(); // we have no variables
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65 | }
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66 |
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67 | @Override
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68 | public String getCacheDirectoryName() {
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69 | return "swissgrid";
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70 | }
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71 |
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72 | @Override
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73 | public Bounds getWorldBoundsLatLon() {
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74 | return new Bounds(new LatLon(45.7, 5.7), new LatLon(47.9, 10.6));
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75 | }
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76 |
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77 | @Override
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78 | public void setupPreferencePanel(JPanel p, ActionListener listener) {
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79 | p.add(new HtmlPanel(tr("<i>CH1903 / LV03 (without local corrections)</i>")), GBC.eol().fill(GBC.HORIZONTAL));
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80 | p.add(Box.createVerticalGlue(), GBC.eol().fill(GBC.BOTH));
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81 | }
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82 |
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83 | @Override
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84 | public void setPreferences(Collection<String> args) {
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85 | }
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86 |
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87 | @Override
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88 | public Collection<String> getPreferences(JPanel p) {
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89 | return Collections.singletonList("CH1903");
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90 | }
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91 |
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92 | @Override
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93 | public String[] allCodes() {
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94 | return new String[] { "EPSG:21781" };
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95 | }
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96 |
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97 | @Override
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98 | public Collection<String> getPreferencesFromCode(String code) {
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99 | if ("EPSG:21781".equals(code))
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100 | return Collections.singletonList("CH1903");
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101 | return null;
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102 | }
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103 | }
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