1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.imagery;
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3 |
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4 | import static org.junit.Assert.assertEquals;
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5 | import static org.junit.Assert.assertTrue;
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6 |
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7 | import org.junit.Rule;
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8 | import org.junit.Test;
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9 | import org.openstreetmap.gui.jmapviewer.TileXY;
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10 | import org.openstreetmap.gui.jmapviewer.interfaces.ICoordinate;
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11 | import org.openstreetmap.gui.jmapviewer.tilesources.TemplatedTMSTileSource;
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12 | import org.openstreetmap.josm.Main;
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13 | import org.openstreetmap.josm.data.Bounds;
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14 | import org.openstreetmap.josm.data.coor.EastNorth;
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15 | import org.openstreetmap.josm.data.coor.LatLon;
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16 | import org.openstreetmap.josm.data.projection.CustomProjection;
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17 | import org.openstreetmap.josm.data.projection.Projection;
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18 | import org.openstreetmap.josm.data.projection.Projections;
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19 | import org.openstreetmap.josm.testutils.JOSMTestRules;
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20 |
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21 | import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
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22 |
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23 | /**
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24 | * Unit tests for class {@link TemplatedWMSTileSource}.
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25 | */
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26 | public class TemplatedWMSTileSourceTest {
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27 |
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28 | private final ImageryInfo testImageryWMS = new ImageryInfo("test imagery", "http://localhost", "wms", null, null);
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29 | private final ImageryInfo testImageryTMS = new ImageryInfo("test imagery", "http://localhost", "tms", null, null);
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30 |
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31 | /**
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32 | * Setup test.
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33 | */
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34 | @Rule
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35 | @SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
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36 | public JOSMTestRules test = new JOSMTestRules();
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37 |
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38 | /**
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39 | * Test EPSG:3857
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40 | */
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41 | @Test
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42 | public void testEPSG3857() {
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43 | Projection projection = Projections.getProjectionByCode("EPSG:3857");
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44 | Main.setProjection(projection);
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45 | TemplatedWMSTileSource source = new TemplatedWMSTileSource(testImageryWMS, projection);
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46 | verifyMercatorTile(source, 0, 0, 1);
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47 | verifyMercatorTile(source, 0, 0, 2);
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48 | verifyMercatorTile(source, 0, 1, 2);
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49 | verifyMercatorTile(source, 1, 0, 2);
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50 | verifyMercatorTile(source, 1, 1, 2);
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51 | for (int x = 0; x < 4; x++) {
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52 | for (int y = 0; y < 4; y++) {
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53 | verifyMercatorTile(source, x, y, 3);
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54 | verifyTileSquarness(source, x, y, 3);
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55 | }
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56 | }
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57 | verifyTileSquarness(source, 150, 20, 18);
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58 | verifyTileSquarness(source, 2270, 1323, 12);
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59 | verifyLocation(source, new LatLon(53.5937132, 19.5652017));
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60 | verifyLocation(source, new LatLon(53.501565692302854, 18.54455233898721));
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61 | }
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62 |
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63 | /**
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64 | * Test EPSG:4326
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65 | */
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66 | @Test
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67 | public void testEPSG4326() {
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68 | Projection projection = Projections.getProjectionByCode("EPSG:4326");
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69 | Main.setProjection(projection);
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70 | TemplatedWMSTileSource source = getSource(projection);
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71 |
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72 | verifyLocation(source, new LatLon(53.5937132, 19.5652017));
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73 | verifyLocation(source, new LatLon(53.501565692302854, 18.54455233898721));
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74 | verifyTileSquarness(source, 2, 2, 2);
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75 | verifyTileSquarness(source, 150, 20, 18);
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76 | verifyTileSquarness(source, 2270, 1323, 12);
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77 | }
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78 |
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79 | /**
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80 | * Test EPSG:4326 - wide bounds
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81 | */
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82 | @Test
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83 | public void testEPSG4326widebounds() {
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84 | Projection projection = new CustomProjection("+proj=lonlat +datum=WGS84 +axis=neu +bounds=-180,53,180,54");
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85 | Main.setProjection(projection);
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86 | TemplatedWMSTileSource source = getSource(projection);
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87 |
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88 | verifyLocation(source, new LatLon(53.5937132, 19.5652017));
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89 | verifyLocation(source, new LatLon(53.501565692302854, 18.54455233898721));
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90 | }
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91 |
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92 | /**
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93 | * Test EPSG:4326 - narrow bounds
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94 | */
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95 | @Test
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96 | public void testEPSG4326narrowbounds() {
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97 | Projection projection = new CustomProjection("+proj=lonlat +datum=WGS84 +axis=neu +bounds=18,-90,20,90");
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98 | Main.setProjection(projection);
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99 | TemplatedWMSTileSource source = getSource(projection);
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100 |
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101 | verifyLocation(source, new LatLon(53.5937132, 19.5652017));
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102 | verifyLocation(source, new LatLon(53.501565692302854, 18.54455233898721));
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103 | }
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104 |
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105 | /**
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106 | * Test EPSG:2180
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107 | */
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108 | @Test
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109 | public void testEPSG2180() {
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110 | Projection projection = Projections.getProjectionByCode("EPSG:2180");
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111 | Main.setProjection(projection);
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112 | TemplatedWMSTileSource source = getSource(projection);
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113 |
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114 | verifyLocation(source, new LatLon(53.5937132, 19.5652017));
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115 | verifyLocation(source, new LatLon(53.501565692302854, 18.54455233898721));
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116 |
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117 | verifyTileSquarness(source, 2, 2, 2);
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118 | verifyTileSquarness(source, 150, 20, 18);
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119 | verifyTileSquarness(source, 2270, 1323, 12);
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120 | }
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121 |
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122 | /**
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123 | * Test EPSG:3006 with bounds
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124 | */
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125 | @Test
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126 | public void testEPSG3006withbounds() {
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127 | Projection projection =
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128 | new CustomProjection("+proj=utm +zone=33 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 "
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129 | + "+units=m +no_defs +axis=neu +wmssrs=EPSG:3006 +bounds=10.5700,55.2000,24.1800,69.1000 ");
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130 | Main.setProjection(projection);
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131 | TemplatedWMSTileSource source = getSource(projection);
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132 |
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133 | verifyTileSquarness(source, 0, 1, 4);
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134 | verifyLocation(source, new LatLon(60, 18.1), 3);
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135 | verifyLocation(source, new LatLon(60, 18.1));
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136 | }
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137 |
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138 | /**
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139 | * Test EPSG:3006 without bounds
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140 | */
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141 | @Test
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142 | public void testEPSG3006withoutbounds() {
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143 | Projection projection =
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144 | new CustomProjection("+proj=utm +zone=33 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 "
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145 | + "+units=m +no_defs +axis=neu +wmssrs=EPSG:3006");
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146 | Main.setProjection(projection);
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147 | TemplatedWMSTileSource source = getSource(projection);
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148 |
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149 | verifyTileSquarness(source, 0, 1, 4);
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150 | verifyLocation(source, new LatLon(60, 18.1), 3);
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151 | verifyLocation(source, new LatLon(60, 18.1));
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152 | }
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153 |
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154 | private void verifyMercatorTile(TemplatedWMSTileSource source, int x, int y, int z) {
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155 | TemplatedTMSTileSource verifier = new TemplatedTMSTileSource(testImageryTMS);
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156 | LatLon result = getTileLatLon(source, x, y, z);
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157 | ICoordinate expected = verifier.tileXYToLatLon(x, y, z - 1);
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158 | assertEquals(expected.getLat(), result.lat(), 1e-4);
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159 | assertEquals(LatLon.normalizeLon(expected.getLon() - result.lon()), 0.0, 1e-4);
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160 | LatLon tileCenter = new Bounds(result, getTileLatLon(source, x+1, y+1, z)).getCenter();
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161 | TileXY backwardsResult = source.latLonToTileXY(tileCenter.toCoordinate(), z);
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162 | assertEquals(x, backwardsResult.getXIndex());
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163 | assertEquals(y, backwardsResult.getYIndex());
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164 | }
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165 |
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166 | private void verifyLocation(TemplatedWMSTileSource source, LatLon location) {
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167 | for (int z = source.getMaxZoom(); z > source.getMinZoom() + 1; z--) {
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168 | if (source.getTileXMax(z) != source.getTileXMin(z) && source.getTileYMax(z) != source.getTileYMin(z)) {
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169 | // do the tests only where there is more than one tile
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170 | verifyLocation(source, location, z);
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171 | }
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172 | }
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173 | }
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174 |
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175 | private void verifyLocation(TemplatedWMSTileSource source, LatLon location, int z) {
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176 | assertTrue(
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177 | "Point outside world bounds",
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178 | Main.getProjection().getWorldBoundsLatLon().contains(location)
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179 | );
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180 |
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181 | TileXY tileIndex = source.latLonToTileXY(location.toCoordinate(), z);
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182 |
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183 | assertTrue("X index: " + tileIndex.getXIndex() + " greater than tileXmax: " + source.getTileXMax(z) + " at zoom: " + z,
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184 | tileIndex.getXIndex() <= source.getTileXMax(z));
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185 |
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186 | assertTrue("Y index: " + tileIndex.getYIndex() + " greater than tileYmax: " + source.getTileYMax(z) + " at zoom: " + z,
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187 | tileIndex.getYIndex() <= source.getTileYMax(z));
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188 |
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189 | EastNorth locationEN = Main.getProjection().latlon2eastNorth(location);
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190 | EastNorth x1 = Main.getProjection().latlon2eastNorth(getTileLatLon(source, tileIndex, z));
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191 | EastNorth x2 = Main.getProjection().latlon2eastNorth(getTileLatLon(source, tileIndex.getXIndex() + 1, tileIndex.getYIndex() + 1, z));
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192 | // test that location is within tile bounds
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193 | assertTrue(locationEN.toString() + " not within " + bboxStr(x1, x2) +
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194 | " for tile " + z + "/" + tileIndex.getXIndex() + "/" + tileIndex.getYIndex(),
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195 | isWithin(locationEN, x1, x2));
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196 | verifyTileSquarness(source, tileIndex.getXIndex(), tileIndex.getYIndex(), z);
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197 | }
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198 |
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199 | private static boolean isWithin(EastNorth point, EastNorth topLeft, EastNorth bottomRight) {
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200 | return Math.min(topLeft.east(), bottomRight.east()) <= point.east() &&
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201 | point.east() <= Math.max(topLeft.east(), bottomRight.east()) &&
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202 | Math.min(topLeft.north(), bottomRight.north()) <= point.north() &&
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203 | point.north() <= Math.max(topLeft.north(), bottomRight.north());
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204 | }
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205 |
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206 | private static String bboxStr(EastNorth x1, EastNorth x2) {
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207 | return "[" + x1.east() +", " + x1.north() + ", " + x2.east() + ", " + x2.north() +"]";
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208 | }
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209 |
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210 | private LatLon getTileLatLon(TemplatedWMSTileSource source, TileXY tileIndex, int z) {
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211 | return getTileLatLon(source, tileIndex.getXIndex(), tileIndex.getYIndex(), z);
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212 | }
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213 |
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214 | private LatLon getTileLatLon(TemplatedWMSTileSource source, int x, int y, int z) {
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215 | return new LatLon(source.tileXYToLatLon(x, y, z));
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216 | }
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217 |
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218 | private void verifyTileSquarness(TemplatedWMSTileSource source, int x, int y, int z) {
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219 | /**
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220 | * t1 | t2
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221 | * -------
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222 | * t3 | t4
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223 | */
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224 | EastNorth t1 = source.getTileEastNorth(x, y, z);
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225 | EastNorth t2 = source.getTileEastNorth(x + 1, y, z);
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226 | EastNorth t3 = source.getTileEastNorth(x, y + 1, z);
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227 | EastNorth t4 = source.getTileEastNorth(x + 1, y + 1, z);
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228 | double y_size = Math.abs(t1.getY() - t4.getY());
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229 | double x_size = Math.abs(t1.getX() - t4.getX());
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230 |
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231 | assertEquals(x_size, y_size, Math.max(x_size, y_size) * 1e-06);
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232 | assertEquals(y_size, Math.abs(t1.getY() - t3.getY()), y_size * 1e-06);
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233 | assertEquals(x_size, Math.abs(t1.getX() - t2.getX()), x_size * 1e-06);
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234 |
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235 | t1 = source.getTileEastNorth(x, y, z);
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236 | t2 = source.getTileEastNorth(x + 1, y, z);
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237 | t3 = source.getTileEastNorth(x, y + 1, z);
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238 | t4 = source.getTileEastNorth(x + 1, y + 1, z);
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239 | y_size = Math.abs(t1.getY() - t4.getY());
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240 | x_size = Math.abs(t1.getX() - t4.getX());
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241 | assertEquals(x_size, y_size, Math.max(x_size, y_size) * 1e-05);
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242 | assertEquals(y_size, Math.abs(t1.getY() - t3.getY()), y_size * 1e-05);
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243 | assertEquals(x_size, Math.abs(t1.getX() - t2.getX()), x_size * 1e-05);
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244 | }
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245 |
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246 | private TemplatedWMSTileSource getSource(Projection projection) {
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247 | return new TemplatedWMSTileSource(testImageryWMS, projection);
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248 | }
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249 | }
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