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.GridBagLayout;
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7 | import java.awt.event.ActionListener;
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8 | import java.util.Collection;
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9 | import java.util.Collections;
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10 |
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11 | import javax.swing.JComboBox;
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12 | import javax.swing.JLabel;
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13 | import javax.swing.JPanel;
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14 |
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15 | import org.openstreetmap.josm.data.Bounds;
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16 | import org.openstreetmap.josm.data.coor.LatLon;
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17 | import org.openstreetmap.josm.data.projection.datum.NTV2Datum;
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18 | import org.openstreetmap.josm.data.projection.datum.NTV2GridShiftFileWrapper;
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19 | import org.openstreetmap.josm.data.projection.proj.ProjParameters;
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20 | import org.openstreetmap.josm.data.projection.proj.TransverseMercator;
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21 | import org.openstreetmap.josm.tools.GBC;
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22 |
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23 | public class GaussKrueger extends AbstractProjection implements ProjectionSubPrefs {
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24 |
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25 | public static final int DEFAULT_ZONE = 2;
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26 | private int zone;
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27 |
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28 | private static Bounds[] bounds = {
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29 | new Bounds(new LatLon(-5, 3.5), new LatLon(85, 8.5)),
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30 | new Bounds(new LatLon(-5, 6.5), new LatLon(85, 11.5)),
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31 | new Bounds(new LatLon(-5, 9.5), new LatLon(85, 14.5)),
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32 | new Bounds(new LatLon(-5, 12.5), new LatLon(85, 17.5)),
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33 | };
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34 |
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35 | private static String[] zones = { "2", "3", "4", "5" };
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36 |
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37 | public GaussKrueger() {
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38 | this(DEFAULT_ZONE);
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39 | }
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40 |
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41 | public GaussKrueger(int zone) {
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42 | updateParameters(zone);
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43 | }
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44 |
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45 | private void updateParameters(int zone) {
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46 | this.zone = zone;
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47 | ellps = Ellipsoid.Bessel1841;
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48 | datum = new NTV2Datum("BETA2007", null, ellps, NTV2GridShiftFileWrapper.BETA2007);
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49 | ////less acurrate datum (errors up to 3m):
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50 | //datum = new SevenParameterDatum(
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51 | // tr("Deutsches Hauptdreiecksnetz"), null, ellps,
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52 | // 598.1, 73.7, 418.2, 0.202, 0.045, -2.455, 6.70);
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53 | proj = new TransverseMercator();
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54 | try {
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55 | proj.initialize(new ProjParameters() {{ ellps = GaussKrueger.this.ellps; }});
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56 | } catch (ProjectionConfigurationException e) {
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57 | throw new RuntimeException(e);
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58 | }
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59 | x_0 = 1000000 * zone + 500000;
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60 | lon_0 = 3 * zone;
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61 | }
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62 |
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63 | @Override
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64 | public String toString() {
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65 | return tr("Gau\u00DF-Kr\u00FCger");
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66 | }
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67 |
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68 | @Override
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69 | public Integer getEpsgCode() {
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70 | return 31464 + zone;
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71 | }
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72 |
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73 | @Override
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74 | public String getCacheDirectoryName() {
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75 | return "gausskrueger"+zone;
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76 | }
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77 |
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78 | @Override
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79 | public Bounds getWorldBoundsLatLon() {
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80 | return bounds[zone-2];
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81 | }
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82 |
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83 | @Override
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84 | public void setupPreferencePanel(JPanel p, ActionListener listener) {
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85 | JComboBox prefcb = new JComboBox(zones);
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86 |
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87 | prefcb.setSelectedIndex(zone-2);
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88 | p.setLayout(new GridBagLayout());
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89 | p.add(new JLabel(tr("GK Zone")), GBC.std().insets(5,5,0,5));
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90 | p.add(GBC.glue(1, 0), GBC.std().fill(GBC.HORIZONTAL));
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91 | /* Note: we use component position 2 below to find this again */
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92 | p.add(prefcb, GBC.eop().fill(GBC.HORIZONTAL));
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93 | p.add(GBC.glue(1, 1), GBC.eol().fill(GBC.BOTH));
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94 |
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95 | if (listener != null) {
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96 | prefcb.addActionListener(listener);
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97 | }
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98 | }
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99 |
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100 | @Override
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101 | public Collection<String> getPreferences(JPanel p) {
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102 | Object prefcb = p.getComponent(2);
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103 | if(!(prefcb instanceof JComboBox))
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104 | return null;
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105 | int zone = ((JComboBox)prefcb).getSelectedIndex();
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106 | return Collections.singleton(Integer.toString(zone+2));
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107 | }
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108 |
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109 | @Override
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110 | public void setPreferences(Collection<String> args) {
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111 | int zone = DEFAULT_ZONE;
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112 | if (args != null) {
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113 | try {
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114 | for(String s : args)
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115 | {
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116 | zone = Integer.parseInt(s);
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117 | if(zone < 2 || zone > 5) {
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118 | zone = DEFAULT_ZONE;
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119 | }
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120 | break;
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121 | }
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122 | } catch(NumberFormatException e) {}
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123 | }
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124 | updateParameters(zone);
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125 | }
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126 |
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127 | @Override
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128 | public String[] allCodes() {
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129 | String[] zones = new String[4];
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130 | for (int zone = 2; zone <= 5; zone++) {
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131 | zones[zone-2] = "EPSG:" + (31464 + zone);
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132 | }
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133 | return zones;
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134 | }
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135 |
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136 | @Override
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137 | public Collection<String> getPreferencesFromCode(String code)
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138 | {
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139 | //zone 2 = EPSG:31466 up to zone 5 = EPSG:31469
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140 | for (int zone = 2; zone <= 5; zone++) {
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141 | String epsg = "EPSG:" + (31464 + zone);
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142 | if (epsg.equals(code))
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143 | return Collections.singleton(String.valueOf(zone));
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144 | }
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145 | return null;
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146 | }
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147 |
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148 | }
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