1 | // License: GPL. Copyright 2007 by Immanuel Scholz and others
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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.ArrayList;
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9 | import java.util.Arrays;
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10 | import java.util.Collection;
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11 |
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12 | import javax.swing.ButtonGroup;
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13 | import javax.swing.JCheckBox;
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14 | import javax.swing.JComboBox;
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15 | import javax.swing.JLabel;
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16 | import javax.swing.JPanel;
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17 | import javax.swing.JRadioButton;
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18 |
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19 | import org.openstreetmap.josm.data.Bounds;
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20 | import org.openstreetmap.josm.data.coor.LatLon;
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21 | import org.openstreetmap.josm.tools.GBC;
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22 |
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23 | /**
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24 | *
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25 | * @author Dirk Stöcker
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26 | * code based on JavaScript from Chuck Taylor
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27 | */
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28 | public class UTM extends TransverseMercator implements ProjectionSubPrefs {
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29 |
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30 | private static final int DEFAULT_ZONE = 30;
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31 | private int zone = DEFAULT_ZONE;
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32 |
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33 | public enum Hemisphere {North, South}
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34 | private static final Hemisphere DEFAULT_HEMISPHERE = Hemisphere.North;
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35 | private Hemisphere hemisphere = DEFAULT_HEMISPHERE;
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36 |
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37 | private boolean offset = false;
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38 |
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39 | public UTM()
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40 | {
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41 | updateParameters();
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42 | }
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43 |
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44 | /*
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45 | * UTMCentralMeridian
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46 | *
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47 | * Determines the central meridian for the given UTM zone.
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48 | *
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49 | * Inputs:
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50 | * zone - An integer value designating the UTM zone, range [1,60].
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51 | *
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52 | * Returns:
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53 | * The central meridian for the given UTM zone, in radians, or zero
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54 | * if the UTM zone parameter is outside the range [1,60].
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55 | * Range of the central meridian is the radian equivalent of [-177,+177].
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56 | *
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57 | */
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58 | private double UTMCentralMeridianDeg(int zone)
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59 | {
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60 | return -183.0 + (zone * 6.0);
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61 | }
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62 |
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63 | @Override public String toString() {
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64 | return tr("UTM");
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65 | }
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66 |
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67 | private void updateParameters() {
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68 | setProjectionParameters(this.UTMCentralMeridianDeg(getzone()), getEastOffset(), getNorthOffset());
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69 | }
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70 |
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71 | public int getzone()
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72 | {
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73 | return zone;
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74 | }
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75 |
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76 | private double getEastOffset() {
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77 | return 500000 + (offset?3000000:0);
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78 | }
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79 |
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80 | private double getNorthOffset() {
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81 | if (hemisphere == Hemisphere.North)
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82 | return 0;
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83 | else
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84 | return 10000000;
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85 | }
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86 |
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87 | private int epsgCode() {
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88 | return ((offset?325800:32600) + getzone() + (hemisphere == Hemisphere.South?100:0));
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89 | }
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90 |
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91 | public String toCode() {
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92 | return "EPSG:"+ epsgCode();
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93 | }
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94 |
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95 | @Override
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96 | public int hashCode() {
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97 | return toCode().hashCode();
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98 | }
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99 |
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100 | public String getCacheDirectoryName() {
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101 | return "epsg"+ epsgCode();
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102 | }
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103 |
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104 | public Bounds getWorldBoundsLatLon()
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105 | {
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106 | if (hemisphere == Hemisphere.North)
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107 | return new Bounds(
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108 | new LatLon(-5.0, UTMCentralMeridianDeg(getzone())-5.0),
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109 | new LatLon(85.0, UTMCentralMeridianDeg(getzone())+5.0));
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110 | else
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111 | return new Bounds(
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112 | new LatLon(-85.0, UTMCentralMeridianDeg(getzone())-5.0),
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113 | new LatLon(5.0, UTMCentralMeridianDeg(getzone())+5.0));
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114 | }
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115 |
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116 | @Override
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117 | public void setupPreferencePanel(JPanel p, ActionListener listener) {
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118 | //Zone
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119 | JComboBox zonecb = new JComboBox();
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120 | for(int i = 1; i <= 60; i++) {
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121 | zonecb.addItem(i);
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122 | }
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123 |
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124 | zonecb.setSelectedIndex(zone - 1);
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125 | p.setLayout(new GridBagLayout());
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126 | p.add(new JLabel(tr("UTM Zone")), GBC.std().insets(5,5,0,5));
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127 | p.add(GBC.glue(1, 0), GBC.std().fill(GBC.HORIZONTAL));
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128 | /* Note: we use component position 2 below to find this again */
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129 | p.add(zonecb, GBC.eop().fill(GBC.HORIZONTAL));
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130 | p.add(GBC.glue(1, 1), GBC.eol().fill(GBC.BOTH));
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131 |
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132 | //Hemisphere
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133 | JRadioButton north = new JRadioButton();
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134 | north.setSelected(hemisphere == Hemisphere.North);
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135 | JRadioButton south = new JRadioButton();
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136 | south.setSelected(hemisphere == Hemisphere.South);
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137 |
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138 | ButtonGroup group = new ButtonGroup();
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139 | group.add(north);
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140 | group.add(south);
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141 |
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142 | JPanel bPanel = new JPanel();
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143 | bPanel.setLayout(new GridBagLayout());
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144 |
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145 | bPanel.add(new JLabel(tr("North")), GBC.std().insets(5, 5, 0, 5));
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146 | bPanel.add(north, GBC.std().fill(GBC.HORIZONTAL));
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147 | bPanel.add(GBC.glue(1, 0), GBC.std().fill(GBC.HORIZONTAL));
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148 | bPanel.add(new JLabel(tr("South")), GBC.std().insets(5, 5, 0, 5));
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149 | bPanel.add(south, GBC.std().fill(GBC.HORIZONTAL));
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150 | bPanel.add(GBC.glue(1, 1), GBC.eol().fill(GBC.BOTH));
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151 |
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152 | p.add(new JLabel(tr("Hemisphere")), GBC.std().insets(5,5,0,5));
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153 | p.add(GBC.glue(1, 0), GBC.std().fill(GBC.HORIZONTAL));
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154 | p.add(bPanel, GBC.eop().fill(GBC.HORIZONTAL));
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155 | p.add(GBC.glue(1, 1), GBC.eol().fill(GBC.BOTH));
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156 |
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157 | //Offset
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158 | JCheckBox offsetBox = new JCheckBox();
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159 | offsetBox.setSelected(offset);
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160 |
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161 | p.add(new JLabel(tr("Offset 3.000.000m east")), GBC.std().insets(5,5,0,5));
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162 | p.add(GBC.glue(1, 0), GBC.std().fill(GBC.HORIZONTAL));
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163 | /* Note: we use component position 2 below to find this again */
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164 | p.add(offsetBox, GBC.eop().fill(GBC.HORIZONTAL));
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165 | p.add(GBC.glue(1, 1), GBC.eol().fill(GBC.BOTH));
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166 |
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167 | if (listener != null) {
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168 | north.addActionListener(listener);
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169 | south.addActionListener(listener);
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170 | zonecb.addActionListener(listener);
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171 | offsetBox.addActionListener(listener);
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172 | }
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173 | }
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174 |
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175 | public Collection<String> getPreferences(JPanel p) {
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176 | int zone = DEFAULT_ZONE;
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177 | Hemisphere hemisphere = DEFAULT_HEMISPHERE;
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178 | boolean offset = false;
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179 |
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180 | Object zonecb = p.getComponent(2);
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181 | if (zonecb instanceof JComboBox) {
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182 | zone = ((JComboBox)zonecb).getSelectedIndex() + 1;
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183 | }
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184 |
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185 | Object bPanel = p.getComponent(6);
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186 | if (bPanel instanceof JPanel) {
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187 | Object south = ((JPanel)bPanel).getComponent(4);
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188 | if (south instanceof JRadioButton) {
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189 | hemisphere = ((JRadioButton)south).isSelected()?Hemisphere.South:Hemisphere.North;
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190 | }
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191 | }
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192 |
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193 | Object offsetBox = p.getComponent(10);
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194 | if (offsetBox instanceof JCheckBox) {
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195 | offset = ((JCheckBox) offsetBox).isSelected();
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196 | }
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197 |
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198 | return Arrays.asList(Integer.toString(zone), hemisphere.toString(), (offset?"offset":"standard"));
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199 | }
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200 |
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201 | public void setPreferences(Collection<String> args)
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202 | {
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203 | zone = DEFAULT_ZONE;
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204 | hemisphere = DEFAULT_HEMISPHERE;
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205 | offset = true; //Default in previous versions
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206 |
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207 | if(args != null)
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208 | {
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209 | String[] array = args.toArray(new String[0]);
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210 | try {
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211 | zone = Integer.parseInt(array[0]);
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212 | if(zone <= 0 || zone > 60) {
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213 | zone = DEFAULT_ZONE;
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214 | }
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215 | } catch(NumberFormatException e) {}
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216 |
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217 | if (array.length > 1) {
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218 | hemisphere = Hemisphere.valueOf(array[1]);
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219 | }
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220 |
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221 | if (array.length > 2) {
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222 | offset = array[2].equals("offset");
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223 | }
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224 | }
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225 | updateParameters();
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226 | }
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227 |
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228 | public String[] allCodes() {
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229 | ArrayList<String> projections = new ArrayList<String>(60*4);
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230 | for (int zone = 1;zone <= 60; zone++) {
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231 | for (boolean offset : new boolean[] { false, true }) {
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232 | for (Hemisphere hemisphere : Hemisphere.values()) {
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233 | projections.add("EPSG:" + ((offset?325800:32600) + zone + (hemisphere == Hemisphere.South?100:0)));
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234 | }
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235 | }
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236 | }
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237 | return projections.toArray(new String[0]);
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238 |
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239 | }
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240 |
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241 | public Collection<String> getPreferencesFromCode(String code)
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242 | {
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243 | boolean offset = code.startsWith("EPSG:3258") || code.startsWith("EPSG:3259");
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244 |
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245 | if(code.startsWith("EPSG:326") || code.startsWith("EPSG:327") || offset)
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246 | {
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247 | try {
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248 | Hemisphere hemisphere;
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249 | String zonestring;
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250 | if (offset) {
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251 | hemisphere = code.charAt(8)=='8'?Hemisphere.North:Hemisphere.South;
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252 | zonestring = code.substring(9);
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253 | } else {
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254 | hemisphere = code.charAt(7)=='6'?Hemisphere.North:Hemisphere.South;
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255 | zonestring = code.substring(8);
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256 | }
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257 |
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258 | int zoneval = Integer.parseInt(zonestring);
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259 | if(zoneval > 0 && zoneval <= 60)
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260 | return Arrays.asList(zonestring, hemisphere.toString(), (offset?"offset":"standard"));
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261 | } catch(NumberFormatException e) {}
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262 | }
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263 | return null;
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264 | }
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265 | }
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