1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data;
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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.geom.Rectangle2D;
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7 | import java.text.DecimalFormat;
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8 | import java.text.MessageFormat;
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9 | import java.util.Objects;
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10 | import java.util.function.Consumer;
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11 |
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12 | import org.openstreetmap.josm.data.coor.LatLon;
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13 | import org.openstreetmap.josm.data.osm.BBox;
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14 | import org.openstreetmap.josm.data.projection.Projection;
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15 | import org.openstreetmap.josm.tools.CheckParameterUtil;
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16 |
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17 | /**
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18 | * This is a simple data class for "rectangular" areas of the world, given in
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19 | * lat/lon min/max values. The values are rounded to LatLon.OSM_SERVER_PRECISION
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20 | *
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21 | * @author imi
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22 | */
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23 | public class Bounds {
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24 | /**
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25 | * The minimum and maximum coordinates.
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26 | */
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27 | private double minLat, minLon, maxLat, maxLon;
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28 |
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29 | public LatLon getMin() {
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30 | return new LatLon(minLat, minLon);
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31 | }
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32 |
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33 | /**
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34 | * Returns min latitude of bounds. Efficient shortcut for {@code getMin().lat()}.
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35 | *
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36 | * @return min latitude of bounds.
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37 | * @since 6203
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38 | */
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39 | public double getMinLat() {
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40 | return minLat;
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41 | }
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42 |
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43 | /**
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44 | * Returns min longitude of bounds. Efficient shortcut for {@code getMin().lon()}.
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45 | *
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46 | * @return min longitude of bounds.
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47 | * @since 6203
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48 | */
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49 | public double getMinLon() {
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50 | return minLon;
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51 | }
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52 |
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53 | public LatLon getMax() {
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54 | return new LatLon(maxLat, maxLon);
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55 | }
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56 |
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57 | /**
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58 | * Returns max latitude of bounds. Efficient shortcut for {@code getMax().lat()}.
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59 | *
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60 | * @return max latitude of bounds.
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61 | * @since 6203
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62 | */
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63 | public double getMaxLat() {
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64 | return maxLat;
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65 | }
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66 |
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67 | /**
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68 | * Returns max longitude of bounds. Efficient shortcut for {@code getMax().lon()}.
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69 | *
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70 | * @return max longitude of bounds.
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71 | * @since 6203
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72 | */
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73 | public double getMaxLon() {
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74 | return maxLon;
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75 | }
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76 |
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77 | public enum ParseMethod {
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78 | MINLAT_MINLON_MAXLAT_MAXLON,
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79 | LEFT_BOTTOM_RIGHT_TOP
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80 | }
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81 |
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82 | /**
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83 | * Construct bounds out of two points. Coords will be rounded.
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84 | * @param min min lat/lon
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85 | * @param max max lat/lon
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86 | */
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87 | public Bounds(LatLon min, LatLon max) {
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88 | this(min.lat(), min.lon(), max.lat(), max.lon());
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89 | }
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90 |
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91 | public Bounds(LatLon min, LatLon max, boolean roundToOsmPrecision) {
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92 | this(min.lat(), min.lon(), max.lat(), max.lon(), roundToOsmPrecision);
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93 | }
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94 |
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95 | /**
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96 | * Constructs bounds out a single point.
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97 | * @param b lat/lon
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98 | */
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99 | public Bounds(LatLon b) {
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100 | this(b, true);
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101 | }
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102 |
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103 | /**
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104 | * Single point Bounds defined by lat/lon {@code b}.
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105 | * Coordinates will be rounded to osm precision if {@code roundToOsmPrecision} is true.
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106 | *
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107 | * @param b lat/lon of given point.
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108 | * @param roundToOsmPrecision defines if lat/lon will be rounded.
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109 | */
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110 | public Bounds(LatLon b, boolean roundToOsmPrecision) {
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111 | this(b.lat(), b.lon(), roundToOsmPrecision);
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112 | }
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113 |
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114 | /**
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115 | * Single point Bounds defined by point [lat,lon].
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116 | * Coordinates will be rounded to osm precision if {@code roundToOsmPrecision} is true.
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117 | *
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118 | * @param lat latitude of given point.
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119 | * @param lon longitude of given point.
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120 | * @param roundToOsmPrecision defines if lat/lon will be rounded.
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121 | * @since 6203
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122 | */
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123 | public Bounds(double lat, double lon, boolean roundToOsmPrecision) {
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124 | // Do not call this(b, b) to avoid GPX performance issue (see #7028) until roundToOsmPrecision() is improved
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125 | if (roundToOsmPrecision) {
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126 | this.minLat = LatLon.roundToOsmPrecision(lat);
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127 | this.minLon = LatLon.roundToOsmPrecision(lon);
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128 | } else {
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129 | this.minLat = lat;
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130 | this.minLon = lon;
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131 | }
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132 | this.maxLat = this.minLat;
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133 | this.maxLon = this.minLon;
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134 | }
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135 |
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136 | public Bounds(double minlat, double minlon, double maxlat, double maxlon) {
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137 | this(minlat, minlon, maxlat, maxlon, true);
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138 | }
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139 |
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140 | public Bounds(double minlat, double minlon, double maxlat, double maxlon, boolean roundToOsmPrecision) {
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141 | if (roundToOsmPrecision) {
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142 | this.minLat = LatLon.roundToOsmPrecision(minlat);
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143 | this.minLon = LatLon.roundToOsmPrecision(minlon);
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144 | this.maxLat = LatLon.roundToOsmPrecision(maxlat);
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145 | this.maxLon = LatLon.roundToOsmPrecision(maxlon);
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146 | } else {
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147 | this.minLat = minlat;
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148 | this.minLon = minlon;
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149 | this.maxLat = maxlat;
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150 | this.maxLon = maxlon;
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151 | }
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152 | }
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153 |
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154 | public Bounds(double ... coords) {
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155 | this(coords, true);
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156 | }
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157 |
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158 | public Bounds(double[] coords, boolean roundToOsmPrecision) {
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159 | CheckParameterUtil.ensureParameterNotNull(coords, "coords");
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160 | if (coords.length != 4)
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161 | throw new IllegalArgumentException(MessageFormat.format("Expected array of length 4, got {0}", coords.length));
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162 | if (roundToOsmPrecision) {
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163 | this.minLat = LatLon.roundToOsmPrecision(coords[0]);
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164 | this.minLon = LatLon.roundToOsmPrecision(coords[1]);
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165 | this.maxLat = LatLon.roundToOsmPrecision(coords[2]);
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166 | this.maxLon = LatLon.roundToOsmPrecision(coords[3]);
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167 | } else {
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168 | this.minLat = coords[0];
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169 | this.minLon = coords[1];
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170 | this.maxLat = coords[2];
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171 | this.maxLon = coords[3];
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172 | }
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173 | }
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174 |
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175 | public Bounds(String asString, String separator) {
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176 | this(asString, separator, ParseMethod.MINLAT_MINLON_MAXLAT_MAXLON);
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177 | }
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178 |
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179 | public Bounds(String asString, String separator, ParseMethod parseMethod) {
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180 | this(asString, separator, parseMethod, true);
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181 | }
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182 |
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183 | public Bounds(String asString, String separator, ParseMethod parseMethod, boolean roundToOsmPrecision) {
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184 | CheckParameterUtil.ensureParameterNotNull(asString, "asString");
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185 | String[] components = asString.split(separator);
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186 | if (components.length != 4)
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187 | throw new IllegalArgumentException(
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188 | MessageFormat.format("Exactly four doubles expected in string, got {0}: {1}", components.length, asString));
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189 | double[] values = new double[4];
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190 | for (int i = 0; i < 4; i++) {
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191 | try {
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192 | values[i] = Double.parseDouble(components[i]);
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193 | } catch (NumberFormatException e) {
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194 | throw new IllegalArgumentException(MessageFormat.format("Illegal double value ''{0}''", components[i]), e);
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195 | }
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196 | }
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197 |
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198 | switch (parseMethod) {
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199 | case LEFT_BOTTOM_RIGHT_TOP:
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200 | this.minLat = initLat(values[1], roundToOsmPrecision);
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201 | this.minLon = initLon(values[0], roundToOsmPrecision);
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202 | this.maxLat = initLat(values[3], roundToOsmPrecision);
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203 | this.maxLon = initLon(values[2], roundToOsmPrecision);
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204 | break;
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205 | case MINLAT_MINLON_MAXLAT_MAXLON:
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206 | default:
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207 | this.minLat = initLat(values[0], roundToOsmPrecision);
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208 | this.minLon = initLon(values[1], roundToOsmPrecision);
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209 | this.maxLat = initLat(values[2], roundToOsmPrecision);
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210 | this.maxLon = initLon(values[3], roundToOsmPrecision);
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211 | }
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212 | }
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213 |
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214 | protected static double initLat(double value, boolean roundToOsmPrecision) {
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215 | if (!LatLon.isValidLat(value))
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216 | throw new IllegalArgumentException(tr("Illegal latitude value ''{0}''", value));
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217 | return roundToOsmPrecision ? LatLon.roundToOsmPrecision(value) : value;
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218 | }
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219 |
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220 | protected static double initLon(double value, boolean roundToOsmPrecision) {
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221 | if (!LatLon.isValidLon(value))
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222 | throw new IllegalArgumentException(tr("Illegal longitude value ''{0}''", value));
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223 | return roundToOsmPrecision ? LatLon.roundToOsmPrecision(value) : value;
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224 | }
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225 |
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226 | /**
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227 | * Creates new {@code Bounds} from an existing one.
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228 | * @param other The bounds to copy
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229 | */
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230 | public Bounds(final Bounds other) {
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231 | this(other.minLat, other.minLon, other.maxLat, other.maxLon);
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232 | }
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233 |
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234 | public Bounds(Rectangle2D rect) {
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235 | this(rect.getMinY(), rect.getMinX(), rect.getMaxY(), rect.getMaxX());
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236 | }
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237 |
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238 | /**
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239 | * Creates new bounds around a coordinate pair <code>center</code>. The
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240 | * new bounds shall have an extension in latitude direction of <code>latExtent</code>,
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241 | * and in longitude direction of <code>lonExtent</code>.
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242 | *
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243 | * @param center the center coordinate pair. Must not be null.
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244 | * @param latExtent the latitude extent. > 0 required.
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245 | * @param lonExtent the longitude extent. > 0 required.
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246 | * @throws IllegalArgumentException if center is null
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247 | * @throws IllegalArgumentException if latExtent <= 0
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248 | * @throws IllegalArgumentException if lonExtent <= 0
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249 | */
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250 | public Bounds(LatLon center, double latExtent, double lonExtent) {
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251 | CheckParameterUtil.ensureParameterNotNull(center, "center");
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252 | if (latExtent <= 0.0)
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253 | throw new IllegalArgumentException(MessageFormat.format("Parameter ''{0}'' > 0.0 expected, got {1}", "latExtent", latExtent));
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254 | if (lonExtent <= 0.0)
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255 | throw new IllegalArgumentException(MessageFormat.format("Parameter ''{0}'' > 0.0 expected, got {1}", "lonExtent", lonExtent));
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256 |
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257 | this.minLat = LatLon.roundToOsmPrecision(LatLon.toIntervalLat(center.lat() - latExtent / 2));
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258 | this.minLon = LatLon.roundToOsmPrecision(LatLon.toIntervalLon(center.lon() - lonExtent / 2));
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259 | this.maxLat = LatLon.roundToOsmPrecision(LatLon.toIntervalLat(center.lat() + latExtent / 2));
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260 | this.maxLon = LatLon.roundToOsmPrecision(LatLon.toIntervalLon(center.lon() + lonExtent / 2));
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261 | }
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262 |
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263 | /**
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264 | * Creates BBox with same coordinates.
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265 | *
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266 | * @return BBox with same coordinates.
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267 | * @since 6203
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268 | */
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269 | public BBox toBBox() {
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270 | return new BBox(minLon, minLat, maxLon, maxLat);
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271 | }
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272 |
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273 | @Override
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274 | public String toString() {
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275 | return "Bounds["+minLat+','+minLon+','+maxLat+','+maxLon+']';
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276 | }
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277 |
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278 | public String toShortString(DecimalFormat format) {
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279 | return format.format(minLat) + ' '
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280 | + format.format(minLon) + " / "
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281 | + format.format(maxLat) + ' '
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282 | + format.format(maxLon);
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283 | }
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284 |
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285 | /**
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286 | * @return Center of the bounding box.
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287 | */
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288 | public LatLon getCenter() {
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289 | if (crosses180thMeridian()) {
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290 | double lat = (minLat + maxLat) / 2;
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291 | double lon = (minLon + maxLon - 360.0) / 2;
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292 | if (lon < -180.0) {
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293 | lon += 360.0;
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294 | }
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295 | return new LatLon(lat, lon);
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296 | } else {
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297 | return new LatLon((minLat + maxLat) / 2, (minLon + maxLon) / 2);
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298 | }
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299 | }
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300 |
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301 | /**
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302 | * Extend the bounds if necessary to include the given point.
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303 | * @param ll The point to include into these bounds
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304 | */
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305 | public void extend(LatLon ll) {
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306 | extend(ll.lat(), ll.lon());
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307 | }
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308 |
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309 | /**
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310 | * Extend the bounds if necessary to include the given point [lat,lon].
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311 | * Good to use if you know coordinates to avoid creation of LatLon object.
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312 | * @param lat Latitude of point to include into these bounds
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313 | * @param lon Longitude of point to include into these bounds
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314 | * @since 6203
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315 | */
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316 | public void extend(final double lat, final double lon) {
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317 | if (lat < minLat) {
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318 | minLat = LatLon.roundToOsmPrecision(lat);
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319 | }
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320 | if (lat > maxLat) {
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321 | maxLat = LatLon.roundToOsmPrecision(lat);
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322 | }
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323 | if (crosses180thMeridian()) {
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324 | if (lon > maxLon && lon < minLon) {
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325 | if (Math.abs(lon - minLon) <= Math.abs(lon - maxLon)) {
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326 | minLon = LatLon.roundToOsmPrecision(lon);
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327 | } else {
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328 | maxLon = LatLon.roundToOsmPrecision(lon);
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329 | }
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330 | }
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331 | } else {
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332 | if (lon < minLon) {
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333 | minLon = LatLon.roundToOsmPrecision(lon);
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334 | }
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335 | if (lon > maxLon) {
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336 | maxLon = LatLon.roundToOsmPrecision(lon);
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337 | }
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338 | }
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339 | }
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340 |
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341 | public void extend(Bounds b) {
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342 | extend(b.minLat, b.minLon);
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343 | extend(b.maxLat, b.maxLon);
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344 | }
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345 |
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346 | /**
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347 | * Determines if the given point {@code ll} is within these bounds.
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348 | * @param ll The lat/lon to check
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349 | * @return {@code true} if {@code ll} is within these bounds, {@code false} otherwise
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350 | */
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351 | public boolean contains(LatLon ll) {
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352 | if (ll.lat() < minLat || ll.lat() > maxLat)
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353 | return false;
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354 | if (crosses180thMeridian()) {
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355 | if (ll.lon() > maxLon && ll.lon() < minLon)
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356 | return false;
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357 | } else {
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358 | if (ll.lon() < minLon || ll.lon() > maxLon)
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359 | return false;
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360 | }
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361 | return true;
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362 | }
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363 |
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364 | private static boolean intersectsLonCrossing(Bounds crossing, Bounds notCrossing) {
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365 | return notCrossing.minLon <= crossing.maxLon || notCrossing.maxLon >= crossing.minLon;
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366 | }
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367 |
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368 | /**
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369 | * The two bounds intersect? Compared to java Shape.intersects, if does not use
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370 | * the interior but the closure. (">=" instead of ">")
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371 | * @param b other bounds
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372 | * @return {@code true} if the two bounds intersect
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373 | */
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374 | public boolean intersects(Bounds b) {
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375 | if (b.maxLat < minLat || b.minLat > maxLat)
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376 | return false;
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377 |
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378 | if (crosses180thMeridian() && !b.crosses180thMeridian()) {
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379 | return intersectsLonCrossing(this, b);
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380 | } else if (!crosses180thMeridian() && b.crosses180thMeridian()) {
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381 | return intersectsLonCrossing(b, this);
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382 | } else if (crosses180thMeridian() && b.crosses180thMeridian()) {
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383 | return true;
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384 | } else {
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385 | return b.maxLon >= minLon && b.minLon <= maxLon;
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386 | }
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387 | }
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388 |
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389 | /**
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390 | * Determines if this Bounds object crosses the 180th Meridian.
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391 | * See http://wiki.openstreetmap.org/wiki/180th_meridian
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392 | * @return true if this Bounds object crosses the 180th Meridian.
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393 | */
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394 | public boolean crosses180thMeridian() {
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395 | return this.minLon > this.maxLon;
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396 | }
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397 |
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398 | /**
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399 | * Converts the lat/lon bounding box to an object of type Rectangle2D.Double
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400 | * @return the bounding box to Rectangle2D.Double
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401 | */
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402 | public Rectangle2D.Double asRect() {
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403 | double w = getWidth();
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404 | return new Rectangle2D.Double(minLon, minLat, w, maxLat-minLat);
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405 | }
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406 |
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407 | private double getWidth() {
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408 | return maxLon-minLon + (crosses180thMeridian() ? 360.0 : 0.0);
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409 | }
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410 |
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411 | public double getArea() {
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412 | double w = getWidth();
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413 | return w * (maxLat - minLat);
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414 | }
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415 |
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416 | public String encodeAsString(String separator) {
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417 | StringBuilder sb = new StringBuilder();
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418 | sb.append(minLat).append(separator).append(minLon)
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419 | .append(separator).append(maxLat).append(separator)
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420 | .append(maxLon);
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421 | return sb.toString();
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422 | }
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423 |
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424 | /**
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425 | * <p>Replies true, if this bounds are <em>collapsed</em>, i.e. if the min
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426 | * and the max corner are equal.</p>
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427 | *
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428 | * @return true, if this bounds are <em>collapsed</em>
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429 | */
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430 | public boolean isCollapsed() {
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431 | return Double.doubleToLongBits(minLat) == Double.doubleToLongBits(maxLat)
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432 | && Double.doubleToLongBits(minLon) == Double.doubleToLongBits(maxLon);
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433 | }
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434 |
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435 | public boolean isOutOfTheWorld() {
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436 | return
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437 | minLat < -90 || minLat > 90 ||
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438 | maxLat < -90 || maxLat > 90 ||
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439 | minLon < -180 || minLon > 180 ||
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440 | maxLon < -180 || maxLon > 180;
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441 | }
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442 |
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443 | public void normalize() {
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444 | minLat = LatLon.toIntervalLat(minLat);
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445 | maxLat = LatLon.toIntervalLat(maxLat);
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446 | minLon = LatLon.toIntervalLon(minLon);
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447 | maxLon = LatLon.toIntervalLon(maxLon);
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448 | }
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449 |
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450 | /**
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451 | * Visit points along the edge of this bounds instance.
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452 | * @param projection The projection that should be used to determine how often the edge should be split along a given corner.
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453 | * @param visitor A function to call for the points on the edge.
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454 | * @since 10806
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455 | */
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456 | public void visitEdge(Projection projection, Consumer<LatLon> visitor) {
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457 | double width = getWidth();
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458 | double height = maxLat - minLat;
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459 | //TODO: Use projection to see if there is any need for doing this along each axis.
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460 | int splitX = Math.max((int) width / 10, 10);
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461 | int splitY = Math.max((int) height / 10, 10);
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462 |
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463 | for (int step = 0; step < splitX; step++) {
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464 | visitor.accept(new LatLon(minLat, minLon + width * step / splitX));
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465 | }
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466 | for (int step = 0; step < splitY; step++) {
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467 | visitor.accept(new LatLon(minLat + height * step / splitY, maxLon));
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468 | }
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469 | for (int step = 0; step < splitX; step++) {
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470 | visitor.accept(new LatLon(maxLat, maxLon - width * step / splitX));
|
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471 | }
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472 | for (int step = 0; step < splitY; step++) {
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473 | visitor.accept(new LatLon(maxLat - height * step / splitY, minLon));
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474 | }
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475 | }
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476 |
|
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477 | @Override
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478 | public int hashCode() {
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479 | return Objects.hash(minLat, minLon, maxLat, maxLon);
|
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480 | }
|
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481 |
|
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482 | @Override
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483 | public boolean equals(Object obj) {
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484 | if (this == obj) return true;
|
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485 | if (obj == null || getClass() != obj.getClass()) return false;
|
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486 | Bounds bounds = (Bounds) obj;
|
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487 | return Double.compare(bounds.minLat, minLat) == 0 &&
|
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488 | Double.compare(bounds.minLon, minLon) == 0 &&
|
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489 | Double.compare(bounds.maxLat, maxLat) == 0 &&
|
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490 | Double.compare(bounds.maxLon, maxLon) == 0;
|
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491 | }
|
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492 | }
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