Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2498 | - | 1 | |
| 2 | namespace GMap.NET.Projections |
||
| 3 | { |
||
| 4 | using System; |
||
| 5 | |||
| 6 | /// <summary> |
||
| 7 | /// Plate Carrée (literally, “plane square”) projection |
||
| 8 | /// PROJCS["WGS 84 / World Equidistant Cylindrical",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],UNIT["Meter",1]] |
||
| 9 | /// |
||
| 10 | ///"spatialReference": |
||
| 11 | ///{"wkid":4326},"singleFusedMapCache":true,"tileInfo": |
||
| 12 | ///{"rows":256,"cols":256,"dpi":96,"format":"PNG8","compressionQuality":0, |
||
| 13 | ///"origin":{"x":-400,"y":400},"spatialReference":{"wkid":4326},"lods": |
||
| 14 | /// |
||
| 15 | ///[{"level":0,"resolution":0.0118973050291514,"scale":5000000}, |
||
| 16 | ///{"level":1,"resolution":0.0059486525145757,"scale":2500000}, |
||
| 17 | ///{"level":2,"resolution":0.00297432625728785,"scale":1250000}, |
||
| 18 | ///{"level":3,"resolution":0.00118973050291514,"scale":500000}, |
||
| 19 | ///{"level":4,"resolution":0.00059486525145757,"scale":250000}, |
||
| 20 | ///{"level":5,"resolution":0.000356919150874542,"scale":150000}, |
||
| 21 | ///{"level":6,"resolution":0.000178459575437271,"scale":75000}, |
||
| 22 | ///{"level":7,"resolution":0.000118973050291514,"scale":50000}, |
||
| 23 | ///{"level":8,"resolution":5.9486525145757E-05,"scale":25000}, |
||
| 24 | ///{"level":9,"resolution":3.56919150874542E-05,"scale":15000}, |
||
| 25 | ///{"level":10,"resolution":1.90356880466422E-05,"scale":8000}, |
||
| 26 | ///{"level":11,"resolution":9.51784402332112E-06,"scale":4000}, |
||
| 27 | ///{"level":12,"resolution":4.75892201166056E-06,"scale":2000}]}, |
||
| 28 | /// |
||
| 29 | ///"initialExtent": |
||
| 30 | ///{"xmin":42.1125196069871,"ymin":18.6650706214551,"xmax":65.698643558112 |
||
| 31 | ///4,"ymax":29.4472987133981,"spatialReference":{"wkid":4326}}, |
||
| 32 | /// |
||
| 33 | ///"fullExtent": |
||
| 34 | ///{"xmin":41.522866508209,"ymin":18.7071563263201,"xmax":66.2882966568906 |
||
| 35 | ///,"ymax":29.4052130085331,"spatialReference":{"wkid":4326}}, |
||
| 36 | /// |
||
| 37 | ///"units":"esriDecimalDegrees" |
||
| 38 | /// </summary> |
||
| 39 | public class PlateCarreeProjectionDarbAe : PureProjection |
||
| 40 | { |
||
| 41 | public static readonly PlateCarreeProjectionDarbAe Instance = new PlateCarreeProjectionDarbAe(); |
||
| 42 | |||
| 43 | public static readonly double MinLatitude = 18.7071563263201; |
||
| 44 | public static readonly double MaxLatitude = 29.4052130085331; |
||
| 45 | public static readonly double MinLongitude = 41.522866508209; |
||
| 46 | public static readonly double MaxLongitude = 66.2882966568906; |
||
| 47 | |||
| 48 | static readonly double orignX = -400; |
||
| 49 | static readonly double orignY = 400; |
||
| 50 | |||
| 51 | public override RectLatLng Bounds |
||
| 52 | { |
||
| 53 | get |
||
| 54 | { |
||
| 55 | return RectLatLng.FromLTRB(MinLongitude, MaxLatitude, MaxLongitude, MinLatitude); |
||
| 56 | } |
||
| 57 | } |
||
| 58 | |||
| 59 | GSize tileSize = new GSize(256, 256); |
||
| 60 | public override GSize TileSize |
||
| 61 | { |
||
| 62 | get |
||
| 63 | { |
||
| 64 | return tileSize; |
||
| 65 | } |
||
| 66 | } |
||
| 67 | |||
| 68 | public override double Axis |
||
| 69 | { |
||
| 70 | get |
||
| 71 | { |
||
| 72 | return 6378137; |
||
| 73 | } |
||
| 74 | } |
||
| 75 | |||
| 76 | public override double Flattening |
||
| 77 | { |
||
| 78 | get |
||
| 79 | { |
||
| 80 | return (1.0 / 298.257223563); |
||
| 81 | } |
||
| 82 | } |
||
| 83 | |||
| 84 | public override GPoint FromLatLngToPixel(double lat, double lng, int zoom) |
||
| 85 | { |
||
| 86 | GPoint ret = GPoint.Empty; |
||
| 87 | |||
| 88 | lat = Clip(lat, MinLatitude, MaxLatitude); |
||
| 89 | lng = Clip(lng, MinLongitude, MaxLongitude); |
||
| 90 | |||
| 91 | /* |
||
| 92 | getContainingTileCoords:function(ti,_1dd,lod) |
||
| 93 | { |
||
| 94 | var to=ti.origin, |
||
| 95 | res=lod.resolution, |
||
| 96 | tmw=ti.width*res, |
||
| 97 | tmh=ti.height*res, |
||
| 98 | tc=Math.floor((_1dd.x-to.x)/tmw), |
||
| 99 | tr=Math.floor((to.y-_1dd.y)/tmh); |
||
| 100 | } |
||
| 101 | */ |
||
| 102 | |||
| 103 | double res = GetTileMatrixResolution(zoom); |
||
| 104 | |||
| 105 | ret.X = (long)Math.Floor((lng - orignX) / res); |
||
| 106 | ret.Y = (long)Math.Floor((orignY - lat) / res); |
||
| 107 | |||
| 108 | return ret; |
||
| 109 | } |
||
| 110 | |||
| 111 | public override PointLatLng FromPixelToLatLng(long x, long y, int zoom) |
||
| 112 | { |
||
| 113 | PointLatLng ret = PointLatLng.Empty; |
||
| 114 | |||
| 115 | double res = GetTileMatrixResolution(zoom); |
||
| 116 | |||
| 117 | ret.Lat = orignY - (y * res); |
||
| 118 | ret.Lng = (x * res) + orignX; |
||
| 119 | |||
| 120 | return ret; |
||
| 121 | } |
||
| 122 | |||
| 123 | public static double GetTileMatrixResolution(int zoom) |
||
| 124 | { |
||
| 125 | double ret = 0; |
||
| 126 | |||
| 127 | switch(zoom) |
||
| 128 | { |
||
| 129 | #region -- sizes -- |
||
| 130 | case 0: |
||
| 131 | { |
||
| 132 | ret = 0.0118973050291514; |
||
| 133 | } |
||
| 134 | break; |
||
| 135 | |||
| 136 | case 1: |
||
| 137 | { |
||
| 138 | ret = 0.0059486525145757; |
||
| 139 | } |
||
| 140 | break; |
||
| 141 | |||
| 142 | case 2: |
||
| 143 | { |
||
| 144 | ret = 0.00297432625728785; |
||
| 145 | } |
||
| 146 | break; |
||
| 147 | |||
| 148 | case 3: |
||
| 149 | { |
||
| 150 | ret = 0.00118973050291514; |
||
| 151 | } |
||
| 152 | break; |
||
| 153 | |||
| 154 | case 4: |
||
| 155 | { |
||
| 156 | ret = 0.00059486525145757; |
||
| 157 | } |
||
| 158 | break; |
||
| 159 | |||
| 160 | case 5: |
||
| 161 | { |
||
| 162 | ret = 0.000356919150874542; |
||
| 163 | } |
||
| 164 | break; |
||
| 165 | |||
| 166 | case 6: |
||
| 167 | { |
||
| 168 | ret = 0.000178459575437271; |
||
| 169 | } |
||
| 170 | break; |
||
| 171 | |||
| 172 | case 7: |
||
| 173 | { |
||
| 174 | ret = 0.000118973050291514; |
||
| 175 | } |
||
| 176 | break; |
||
| 177 | |||
| 178 | case 8: |
||
| 179 | { |
||
| 180 | ret = 5.9486525145757E-05; |
||
| 181 | } |
||
| 182 | break; |
||
| 183 | |||
| 184 | case 9: |
||
| 185 | { |
||
| 186 | ret = 3.56919150874542E-05; |
||
| 187 | } |
||
| 188 | break; |
||
| 189 | |||
| 190 | case 10: |
||
| 191 | { |
||
| 192 | ret = 1.90356880466422E-05; |
||
| 193 | } |
||
| 194 | break; |
||
| 195 | |||
| 196 | case 11: |
||
| 197 | { |
||
| 198 | ret = 9.51784402332112E-06; |
||
| 199 | } |
||
| 200 | break; |
||
| 201 | |||
| 202 | case 12: |
||
| 203 | { |
||
| 204 | ret = 4.75892201166056E-06; |
||
| 205 | } |
||
| 206 | break; |
||
| 207 | #endregion |
||
| 208 | } |
||
| 209 | |||
| 210 | return ret; |
||
| 211 | } |
||
| 212 | |||
| 213 | public override double GetGroundResolution(int zoom, double latitude) |
||
| 214 | { |
||
| 215 | return GetTileMatrixResolution(zoom); |
||
| 216 | } |
||
| 217 | |||
| 218 | public override GSize GetTileMatrixMaxXY(int zoom) |
||
| 219 | { |
||
| 220 | var maxPx = FromLatLngToPixel(MinLatitude, MaxLongitude, zoom); |
||
| 221 | return new GSize(FromPixelToTileXY(maxPx)); |
||
| 222 | } |
||
| 223 | |||
| 224 | public override GSize GetTileMatrixMinXY(int zoom) |
||
| 225 | { |
||
| 226 | var minPx = FromLatLngToPixel(MaxLatitude, MinLongitude, zoom); |
||
| 227 | return new GSize(FromPixelToTileXY(minPx)); |
||
| 228 | } |
||
| 229 | } |
||
| 230 | } |