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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2498 | - | 1 | |
| 2 | namespace GMap.NET.Projections |
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| 3 | { |
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| 4 | using System; |
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| 5 | using System.Collections.Generic; |
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| 6 | |||
| 7 | /// <summary> |
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| 8 | /// GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 84\",6378137,298.257223563,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.01745329251994328,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4326\"]] |
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| 9 | /// PROJCS["LKS92 / Latvia TM",GEOGCS["LKS92",DATUM["D_Latvia_1992",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",24],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",-6000000],UNIT["Meter",1]] |
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| 10 | /// </summary> |
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| 11 | public class LKS92Projection : PureProjection |
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| 12 | { |
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| 13 | public static readonly LKS92Projection Instance = new LKS92Projection(); |
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| 14 | |||
| 15 | static readonly double MinLatitude = 55.55; |
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| 16 | static readonly double MaxLatitude = 58.22; |
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| 17 | static readonly double MinLongitude = 20.22; |
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| 18 | static readonly double MaxLongitude = 28.28; |
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| 19 | |||
| 20 | static readonly double orignX = -5120900; |
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| 21 | static readonly double orignY = 3998100; |
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| 22 | |||
| 23 | static readonly double scaleFactor = 0.9996; // scale factor |
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| 24 | static readonly double centralMeridian = 0.41887902047863912;// Center longitude (projection center) |
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| 25 | static readonly double latOrigin = 0.0; // center latitude |
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| 26 | static readonly double falseNorthing = -6000000.0; // y offset in meters |
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| 27 | static readonly double falseEasting = 500000.0; // x offset in meters |
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| 28 | static readonly double semiMajor = 6378137.0; // major axis |
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| 29 | static readonly double semiMinor = 6356752.3141403561; // minor axis |
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| 30 | static readonly double semiMinor2 = 6356752.3142451793; // minor axis |
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| 31 | static readonly double metersPerUnit = 1.0; |
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| 32 | static readonly double COS_67P5 = 0.38268343236508977; // cosine of 67.5 degrees |
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| 33 | static readonly double AD_C = 1.0026000; // Toms region 1 constant |
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| 34 | |||
| 35 | public override RectLatLng Bounds |
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| 36 | { |
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| 37 | get |
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| 38 | { |
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| 39 | return RectLatLng.FromLTRB(MinLongitude, MaxLatitude, MaxLongitude, MinLatitude); |
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| 40 | } |
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| 41 | } |
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| 42 | |||
| 43 | GSize tileSize = new GSize(256, 256); |
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| 44 | public override GSize TileSize |
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| 45 | { |
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| 46 | get |
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| 47 | { |
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| 48 | return tileSize; |
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| 49 | } |
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| 50 | } |
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| 51 | |||
| 52 | public override double Axis |
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| 53 | { |
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| 54 | get |
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| 55 | { |
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| 56 | return 6378137; |
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| 57 | } |
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| 58 | } |
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| 59 | |||
| 60 | public override double Flattening |
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| 61 | { |
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| 62 | get |
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| 63 | { |
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| 64 | return (1.0 / 298.257222101); |
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| 65 | } |
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| 66 | } |
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| 67 | |||
| 68 | public override GPoint FromLatLngToPixel(double lat, double lng, int zoom) |
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| 69 | { |
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| 70 | lat = Clip(lat, MinLatitude, MaxLatitude); |
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| 71 | lng = Clip(lng, MinLongitude, MaxLongitude); |
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| 72 | |||
| 73 | double[] lks = new double[] { lng, lat }; |
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| 74 | lks = DTM10(lks); |
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| 75 | lks = MTD10(lks); |
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| 76 | lks = DTM00(lks); |
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| 77 | |||
| 78 | double res = GetTileMatrixResolution(zoom); |
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| 79 | return LksToPixel(lks, res); |
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| 80 | } |
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| 81 | |||
| 82 | static GPoint LksToPixel(double[] lks, double res) |
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| 83 | { |
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| 84 | return new GPoint((long)Math.Floor((lks[0] - orignX) / res), (long)Math.Floor((orignY - lks[1]) / res)); |
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| 85 | } |
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| 86 | |||
| 87 | public override PointLatLng FromPixelToLatLng(long x, long y, int zoom) |
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| 88 | { |
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| 89 | PointLatLng ret = PointLatLng.Empty; |
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| 90 | |||
| 91 | double res = GetTileMatrixResolution(zoom); |
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| 92 | |||
| 93 | double[] lks = new double[] { (x * res) + orignX, orignY - (y * res) }; |
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| 94 | lks = MTD11(lks); |
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| 95 | lks = DTM10(lks); |
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| 96 | lks = MTD10(lks); |
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| 97 | |||
| 98 | ret.Lat = Clip(lks[1], MinLatitude, MaxLatitude); |
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| 99 | ret.Lng = Clip(lks[0], MinLongitude, MaxLongitude); |
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| 100 | |||
| 101 | return ret; |
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| 102 | } |
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| 103 | |||
| 104 | double[] DTM10(double[] lonlat) |
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| 105 | { |
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| 106 | // Eccentricity squared : (a^2 - b^2)/a^2 |
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| 107 | double es = 1.0 - (semiMinor2 * semiMinor2) / (semiMajor * semiMajor); // e^2 |
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| 108 | |||
| 109 | // Second eccentricity squared : (a^2 - b^2)/b^2 |
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| 110 | double ses = (Math.Pow(semiMajor, 2) - Math.Pow(semiMinor2, 2)) / Math.Pow(semiMinor2, 2); |
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| 111 | |||
| 112 | double ba = semiMinor2 / semiMajor; |
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| 113 | double ab = semiMajor / semiMinor2; |
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| 114 | |||
| 115 | double lon = DegreesToRadians(lonlat[0]); |
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| 116 | double lat = DegreesToRadians(lonlat[1]); |
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| 117 | double h = lonlat.Length < 3 ? 0 : lonlat[2].Equals(Double.NaN) ? 0 : lonlat[2]; |
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| 118 | double v = semiMajor / Math.Sqrt(1 - es * Math.Pow(Math.Sin(lat), 2)); |
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| 119 | double x = (v + h) * Math.Cos(lat) * Math.Cos(lon); |
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| 120 | double y = (v + h) * Math.Cos(lat) * Math.Sin(lon); |
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| 121 | double z = ((1 - es) * v + h) * Math.Sin(lat); |
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| 122 | return new double[] { x, y, z, }; |
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| 123 | } |
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| 124 | |||
| 125 | double[] MTD10(double[] pnt) |
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| 126 | { |
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| 127 | // Eccentricity squared : (a^2 - b^2)/a^2 |
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| 128 | double es = 1.0 - (semiMinor * semiMinor) / (semiMajor * semiMajor); // e^2 |
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| 129 | |||
| 130 | // Second eccentricity squared : (a^2 - b^2)/b^2 |
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| 131 | double ses = (Math.Pow(semiMajor, 2) - Math.Pow(semiMinor, 2)) / Math.Pow(semiMinor, 2); |
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| 132 | |||
| 133 | double ba = semiMinor / semiMajor; |
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| 134 | double ab = semiMajor / semiMinor; |
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| 135 | |||
| 136 | bool AtPole = false; // is location in polar region |
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| 137 | double Z = pnt.Length < 3 ? 0 : pnt[2].Equals(Double.NaN) ? 0 : pnt[2]; |
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| 138 | |||
| 139 | double lon = 0; |
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| 140 | double lat = 0; |
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| 141 | double Height = 0; |
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| 142 | if(pnt[0] != 0.0) |
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| 143 | { |
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| 144 | lon = Math.Atan2(pnt[1], pnt[0]); |
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| 145 | } |
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| 146 | else |
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| 147 | { |
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| 148 | if(pnt[1] > 0) |
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| 149 | { |
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| 150 | lon = Math.PI / 2; |
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| 151 | } |
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| 152 | else |
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| 153 | if(pnt[1] < 0) |
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| 154 | { |
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| 155 | lon = -Math.PI * 0.5; |
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| 156 | } |
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| 157 | else |
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| 158 | { |
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| 159 | AtPole = true; |
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| 160 | lon = 0.0; |
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| 161 | if(Z > 0.0) // north pole |
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| 162 | { |
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| 163 | lat = Math.PI * 0.5; |
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| 164 | } |
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| 165 | else |
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| 166 | if(Z < 0.0) // south pole |
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| 167 | { |
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| 168 | lat = -Math.PI * 0.5; |
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| 169 | } |
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| 170 | else // center of earth |
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| 171 | { |
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| 172 | return new double[] { RadiansToDegrees(lon), RadiansToDegrees(Math.PI * 0.5), -semiMinor, }; |
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| 173 | } |
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| 174 | } |
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| 175 | } |
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| 176 | double W2 = pnt[0] * pnt[0] + pnt[1] * pnt[1]; // Square of distance from Z axis |
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| 177 | double W = Math.Sqrt(W2); // distance from Z axis |
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| 178 | double T0 = Z * AD_C; // initial estimate of vertical component |
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| 179 | double S0 = Math.Sqrt(T0 * T0 + W2); // initial estimate of horizontal component |
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| 180 | double Sin_B0 = T0 / S0; // sin(B0), B0 is estimate of Bowring aux variable |
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| 181 | double Cos_B0 = W / S0; // cos(B0) |
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| 182 | double Sin3_B0 = Math.Pow(Sin_B0, 3); |
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| 183 | double T1 = Z + semiMinor * ses * Sin3_B0; // corrected estimate of vertical component |
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| 184 | double Sum = W - semiMajor * es * Cos_B0 * Cos_B0 * Cos_B0; // numerator of cos(phi1) |
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| 185 | double S1 = Math.Sqrt(T1 * T1 + Sum * Sum); // corrected estimate of horizontal component |
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| 186 | double Sin_p1 = T1 / S1; // sin(phi1), phi1 is estimated latitude |
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| 187 | double Cos_p1 = Sum / S1; // cos(phi1) |
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| 188 | double Rn = semiMajor / Math.Sqrt(1.0 - es * Sin_p1 * Sin_p1); // Earth radius at location |
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| 189 | if(Cos_p1 >= COS_67P5) |
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| 190 | { |
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| 191 | Height = W / Cos_p1 - Rn; |
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| 192 | } |
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| 193 | else |
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| 194 | if(Cos_p1 <= -COS_67P5) |
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| 195 | { |
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| 196 | Height = W / -Cos_p1 - Rn; |
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| 197 | } |
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| 198 | else |
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| 199 | { |
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| 200 | Height = Z / Sin_p1 + Rn * (es - 1.0); |
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| 201 | } |
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| 202 | |||
| 203 | if(!AtPole) |
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| 204 | { |
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| 205 | lat = Math.Atan(Sin_p1 / Cos_p1); |
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| 206 | } |
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| 207 | return new double[] { RadiansToDegrees(lon), RadiansToDegrees(lat), Height, }; |
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| 208 | } |
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| 209 | |||
| 210 | double[] DTM00(double[] lonlat) |
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| 211 | { |
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| 212 | double e0, e1, e2, e3; // eccentricity constants |
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| 213 | double e, es, esp; // eccentricity constants |
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| 214 | double ml0; // small value m |
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| 215 | |||
| 216 | es = 1.0 - Math.Pow(semiMinor / semiMajor, 2); |
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| 217 | e = Math.Sqrt(es); |
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| 218 | e0 = e0fn(es); |
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| 219 | e1 = e1fn(es); |
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| 220 | e2 = e2fn(es); |
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| 221 | e3 = e3fn(es); |
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| 222 | ml0 = semiMajor * mlfn(e0, e1, e2, e3, latOrigin); |
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| 223 | esp = es / (1.0 - es); |
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| 224 | |||
| 225 | // ... |
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| 226 | |||
| 227 | double lon = DegreesToRadians(lonlat[0]); |
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| 228 | double lat = DegreesToRadians(lonlat[1]); |
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| 229 | |||
| 230 | double delta_lon = 0.0; // Delta longitude (Given longitude - center) |
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| 231 | double sin_phi, cos_phi; // sin and cos value |
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| 232 | double al, als; // temporary values |
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| 233 | double c, t, tq; // temporary values |
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| 234 | double con, n, ml; // cone constant, small m |
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| 235 | |||
| 236 | delta_lon = AdjustLongitude(lon - centralMeridian); |
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| 237 | SinCos(lat, out sin_phi, out cos_phi); |
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| 238 | |||
| 239 | al = cos_phi * delta_lon; |
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| 240 | als = Math.Pow(al, 2); |
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| 241 | c = esp * Math.Pow(cos_phi, 2); |
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| 242 | tq = Math.Tan(lat); |
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| 243 | t = Math.Pow(tq, 2); |
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| 244 | con = 1.0 - es * Math.Pow(sin_phi, 2); |
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| 245 | n = semiMajor / Math.Sqrt(con); |
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| 246 | ml = semiMajor * mlfn(e0, e1, e2, e3, lat); |
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| 247 | |||
| 248 | double x = scaleFactor * n * al * (1.0 + als / 6.0 * (1.0 - t + c + als / 20.0 * |
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| 249 | (5.0 - 18.0 * t + Math.Pow(t, 2) + 72.0 * c - 58.0 * esp))) + falseEasting; |
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| 250 | |||
| 251 | double y = scaleFactor * (ml - ml0 + n * tq * (als * (0.5 + als / 24.0 * |
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| 252 | (5.0 - t + 9.0 * c + 4.0 * Math.Pow(c, 2) + als / 30.0 * (61.0 - 58.0 * t |
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| 253 | + Math.Pow(t, 2) + 600.0 * c - 330.0 * esp))))) + falseNorthing; |
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| 254 | |||
| 255 | if(lonlat.Length < 3) |
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| 256 | return new double[] { x / metersPerUnit, y / metersPerUnit }; |
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| 257 | else |
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| 258 | return new double[] { x / metersPerUnit, y / metersPerUnit, lonlat[2] }; |
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| 259 | } |
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| 260 | |||
| 261 | double[] DTM01(double[] lonlat) |
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| 262 | { |
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| 263 | // Eccentricity squared : (a^2 - b^2)/a^2 |
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| 264 | double es = 1.0 - (semiMinor * semiMinor) / (semiMajor * semiMajor); |
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| 265 | |||
| 266 | // Second eccentricity squared : (a^2 - b^2)/b^2 |
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| 267 | double ses = (Math.Pow(semiMajor, 2) - Math.Pow(semiMinor, 2)) / Math.Pow(semiMinor, 2); |
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| 268 | |||
| 269 | double ba = semiMinor / semiMajor; |
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| 270 | double ab = semiMajor / semiMinor; |
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| 271 | |||
| 272 | double lon = DegreesToRadians(lonlat[0]); |
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| 273 | double lat = DegreesToRadians(lonlat[1]); |
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| 274 | double h = lonlat.Length < 3 ? 0 : lonlat[2].Equals(Double.NaN) ? 0 : lonlat[2]; |
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| 275 | double v = semiMajor / Math.Sqrt(1 - es * Math.Pow(Math.Sin(lat), 2)); |
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| 276 | double x = (v + h) * Math.Cos(lat) * Math.Cos(lon); |
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| 277 | double y = (v + h) * Math.Cos(lat) * Math.Sin(lon); |
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| 278 | double z = ((1 - es) * v + h) * Math.Sin(lat); |
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| 279 | return new double[] { x, y, z, }; |
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| 280 | } |
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| 281 | |||
| 282 | double[] MTD01(double[] pnt) |
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| 283 | { |
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| 284 | // Eccentricity squared : (a^2 - b^2)/a^2 |
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| 285 | double es = 1.0 - (semiMinor2 * semiMinor2) / (semiMajor * semiMajor); |
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| 286 | |||
| 287 | // Second eccentricity squared : (a^2 - b^2)/b^2 |
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| 288 | double ses = (Math.Pow(semiMajor, 2) - Math.Pow(semiMinor2, 2)) / Math.Pow(semiMinor2, 2); |
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| 289 | |||
| 290 | double ba = semiMinor2 / semiMajor; |
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| 291 | double ab = semiMajor / semiMinor2; |
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| 292 | |||
| 293 | bool At_Pole = false; // is location in polar region |
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| 294 | double Z = pnt.Length < 3 ? 0 : pnt[2].Equals(Double.NaN) ? 0 : pnt[2]; |
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| 295 | |||
| 296 | double lon = 0; |
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| 297 | double lat = 0; |
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| 298 | double Height = 0; |
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| 299 | if(pnt[0] != 0.0) |
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| 300 | { |
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| 301 | lon = Math.Atan2(pnt[1], pnt[0]); |
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| 302 | } |
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| 303 | else |
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| 304 | { |
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| 305 | if(pnt[1] > 0) |
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| 306 | { |
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| 307 | lon = Math.PI / 2; |
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| 308 | } |
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| 309 | else |
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| 310 | if(pnt[1] < 0) |
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| 311 | { |
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| 312 | lon = -Math.PI * 0.5; |
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| 313 | } |
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| 314 | else |
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| 315 | { |
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| 316 | At_Pole = true; |
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| 317 | lon = 0.0; |
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| 318 | if(Z > 0.0) // north pole |
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| 319 | { |
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| 320 | lat = Math.PI * 0.5; |
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| 321 | } |
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| 322 | else |
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| 323 | if(Z < 0.0) // south pole |
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| 324 | { |
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| 325 | lat = -Math.PI * 0.5; |
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| 326 | } |
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| 327 | else // center of earth |
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| 328 | { |
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| 329 | return new double[] { RadiansToDegrees(lon), RadiansToDegrees(Math.PI * 0.5), -semiMinor2, }; |
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| 330 | } |
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| 331 | } |
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| 332 | } |
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| 333 | |||
| 334 | double W2 = pnt[0] * pnt[0] + pnt[1] * pnt[1]; // Square of distance from Z axis |
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| 335 | double W = Math.Sqrt(W2); // distance from Z axis |
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| 336 | double T0 = Z * AD_C; // initial estimate of vertical component |
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| 337 | double S0 = Math.Sqrt(T0 * T0 + W2); //initial estimate of horizontal component |
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| 338 | double Sin_B0 = T0 / S0; // sin(B0), B0 is estimate of Bowring aux variable |
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| 339 | double Cos_B0 = W / S0; // cos(B0) |
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| 340 | double Sin3_B0 = Math.Pow(Sin_B0, 3); |
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| 341 | double T1 = Z + semiMinor2 * ses * Sin3_B0; //corrected estimate of vertical component |
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| 342 | double Sum = W - semiMajor * es * Cos_B0 * Cos_B0 * Cos_B0; // numerator of cos(phi1) |
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| 343 | double S1 = Math.Sqrt(T1 * T1 + Sum * Sum); // corrected estimate of horizontal component |
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| 344 | double Sin_p1 = T1 / S1; // sin(phi1), phi1 is estimated latitude |
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| 345 | double Cos_p1 = Sum / S1; // cos(phi1) |
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| 346 | double Rn = semiMajor / Math.Sqrt(1.0 - es * Sin_p1 * Sin_p1); // Earth radius at location |
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| 347 | |||
| 348 | if(Cos_p1 >= COS_67P5) |
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| 349 | { |
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| 350 | Height = W / Cos_p1 - Rn; |
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| 351 | } |
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| 352 | else |
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| 353 | if(Cos_p1 <= -COS_67P5) |
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| 354 | { |
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| 355 | Height = W / -Cos_p1 - Rn; |
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| 356 | } |
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| 357 | else |
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| 358 | { |
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| 359 | Height = Z / Sin_p1 + Rn * (es - 1.0); |
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| 360 | } |
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| 361 | |||
| 362 | if(!At_Pole) |
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| 363 | { |
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| 364 | lat = Math.Atan(Sin_p1 / Cos_p1); |
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| 365 | } |
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| 366 | return new double[] { RadiansToDegrees(lon), RadiansToDegrees(lat), Height, }; |
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| 367 | } |
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| 368 | |||
| 369 | double[] MTD11(double[] p) |
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| 370 | { |
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| 371 | double e0, e1, e2, e3; // eccentricity constants |
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| 372 | double e, es, esp; // eccentricity constants |
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| 373 | double ml0; // small value m |
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| 374 | |||
| 375 | es = 1.0 - Math.Pow(semiMinor / semiMajor, 2); |
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| 376 | e = Math.Sqrt(es); |
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| 377 | e0 = e0fn(es); |
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| 378 | e1 = e1fn(es); |
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| 379 | e2 = e2fn(es); |
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| 380 | e3 = e3fn(es); |
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| 381 | ml0 = semiMajor * mlfn(e0, e1, e2, e3, latOrigin); |
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| 382 | esp = es / (1.0 - es); |
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| 383 | |||
| 384 | // ... |
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| 385 | |||
| 386 | double con, phi; |
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| 387 | double delta_phi; |
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| 388 | long i; |
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| 389 | double sin_phi, cos_phi, tan_phi; |
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| 390 | double c, cs, t, ts, n, r, d, ds; |
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| 391 | long max_iter = 6; |
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| 392 | |||
| 393 | double x = p[0] * metersPerUnit - falseEasting; |
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| 394 | double y = p[1] * metersPerUnit - falseNorthing; |
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| 395 | |||
| 396 | con = (ml0 + y / scaleFactor) / semiMajor; |
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| 397 | phi = con; |
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| 398 | for(i = 0; ; i++) |
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| 399 | { |
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| 400 | delta_phi = ((con + e1 * Math.Sin(2.0 * phi) - e2 * Math.Sin(4.0 * phi) + e3 * Math.Sin(6.0 * phi)) / e0) - phi; |
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| 401 | phi += delta_phi; |
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| 402 | |||
| 403 | if(Math.Abs(delta_phi) <= EPSLoN) |
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| 404 | break; |
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| 405 | |||
| 406 | if(i >= max_iter) |
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| 407 | throw new ArgumentException("Latitude failed to converge"); |
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| 408 | } |
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| 409 | |||
| 410 | if(Math.Abs(phi) < HALF_PI) |
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| 411 | { |
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| 412 | SinCos(phi, out sin_phi, out cos_phi); |
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| 413 | tan_phi = Math.Tan(phi); |
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| 414 | c = esp * Math.Pow(cos_phi, 2); |
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| 415 | cs = Math.Pow(c, 2); |
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| 416 | t = Math.Pow(tan_phi, 2); |
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| 417 | ts = Math.Pow(t, 2); |
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| 418 | con = 1.0 - es * Math.Pow(sin_phi, 2); |
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| 419 | n = semiMajor / Math.Sqrt(con); |
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| 420 | r = n * (1.0 - es) / con; |
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| 421 | d = x / (n * scaleFactor); |
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| 422 | ds = Math.Pow(d, 2); |
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| 423 | |||
| 424 | double lat = phi - (n * tan_phi * ds / r) * (0.5 - ds / 24.0 * (5.0 + 3.0 * t + |
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| 425 | 10.0 * c - 4.0 * cs - 9.0 * esp - ds / 30.0 * (61.0 + 90.0 * t + |
||
| 426 | 298.0 * c + 45.0 * ts - 252.0 * esp - 3.0 * cs))); |
||
| 427 | |||
| 428 | double lon = AdjustLongitude(centralMeridian + (d * (1.0 - ds / 6.0 * (1.0 + 2.0 * t + |
||
| 429 | c - ds / 20.0 * (5.0 - 2.0 * c + 28.0 * t - 3.0 * cs + 8.0 * esp + |
||
| 430 | 24.0 * ts))) / cos_phi)); |
||
| 431 | |||
| 432 | if(p.Length < 3) |
||
| 433 | return new double[] { RadiansToDegrees(lon), RadiansToDegrees(lat) }; |
||
| 434 | else |
||
| 435 | return new double[] { RadiansToDegrees(lon), RadiansToDegrees(lat), p[2] }; |
||
| 436 | } |
||
| 437 | else |
||
| 438 | { |
||
| 439 | if(p.Length < 3) |
||
| 440 | return new double[] { RadiansToDegrees(HALF_PI * Sign(y)), RadiansToDegrees(centralMeridian) }; |
||
| 441 | else |
||
| 442 | return new double[] { RadiansToDegrees(HALF_PI * Sign(y)), RadiansToDegrees(centralMeridian), p[2] }; |
||
| 443 | } |
||
| 444 | } |
||
| 445 | |||
| 446 | #region -- levels info -- |
||
| 447 | /* |
||
| 448 | "spatialReference":{"wkid":3059,"latestWkid":3059},"singleFusedMapCache":true, |
||
| 449 | * "tileInfo":{"rows":256,"cols":256,"dpi":96,"format":"PNG8","compressionQuality":0, |
||
| 450 | * "origin":{"x":-5120900,"y":3998100}, |
||
| 451 | * "spatialReference":{"wkid":3059,"latestWkid":3059}, |
||
| 452 | * |
||
| 453 | * "lods":[ |
||
| 454 | * {"level":0,"resolution":1587.5031750063501,"scale":6000000}, |
||
| 455 | * {"level":1,"resolution":793.7515875031751,"scale":3000000}, |
||
| 456 | * {"level":2,"resolution":529.1677250021168,"scale":2000000}, |
||
| 457 | * {"level":3,"resolution":264.5838625010584,"scale":1000000}, |
||
| 458 | * {"level":4,"resolution":132.2919312505292,"scale":500000}, |
||
| 459 | * {"level":5,"resolution":52.91677250021167,"scale":200000}, |
||
| 460 | * {"level":6,"resolution":26.458386250105836,"scale":100000}, |
||
| 461 | * {"level":7,"resolution":13.229193125052918,"scale":50000}, |
||
| 462 | * {"level":8,"resolution":6.614596562526459,"scale":25000}, |
||
| 463 | * {"level":9,"resolution":2.6458386250105836,"scale":10000}, |
||
| 464 | * {"level":10,"resolution":1.3229193125052918,"scale":5000}, |
||
| 465 | * {"level":11,"resolution":0.5291677250021167,"scale":2000}]}, |
||
| 466 | * |
||
| 467 | * "initialExtent": |
||
| 468 | * {"xmin":352544.7096929534,"ymin":240883.24768736016, |
||
| 469 | * "xmax":722784.980307047,"ymax":539178.473189597, |
||
| 470 | * "spatialReference":{"wkid":3059,"latestWkid":3059}}, |
||
| 471 | * |
||
| 472 | * "fullExtent": |
||
| 473 | * {"xmin":312773.6900000004,"ymin":172941, |
||
| 474 | * "xmax":762556,"ymax":438880, |
||
| 475 | * "spatialReference":{"wkid":3059,"latestWkid":3059}}, |
||
| 476 | * |
||
| 477 | * "minScale":6000000,"maxScale":2000,"units":"esriMeters","supportedImageFormatTypes":"PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP", |
||
| 478 | * "documentInfo":{"Title":"ikartelv","Author":"gstanevicius","Comments":"","Subject":"","Category":"","AntialiasingMode":"None","TextAntialiasingMode":"Force","Keywords":""},"capabilities":"Map,Query,Data","supportedQueryFormats":"JSON, AMF","exportTilesAllowed":false,"maxRecordCount":500,"maxImageHeight":4096,"maxImageWidth":4096,"supportedExtensions":"KmlServer, WMSServer"}); |
||
| 479 | */ |
||
| 480 | |||
| 481 | #endregion |
||
| 482 | |||
| 483 | public static double GetTileMatrixResolution(int zoom) |
||
| 484 | { |
||
| 485 | double ret = 0; |
||
| 486 | |||
| 487 | switch(zoom) |
||
| 488 | { |
||
| 489 | #region -- sizes -- |
||
| 490 | case 0: |
||
| 491 | { |
||
| 492 | ret = 1587.5031750063501; |
||
| 493 | } |
||
| 494 | break; |
||
| 495 | |||
| 496 | case 1: |
||
| 497 | { |
||
| 498 | ret = 793.7515875031751; |
||
| 499 | } |
||
| 500 | break; |
||
| 501 | |||
| 502 | case 2: |
||
| 503 | { |
||
| 504 | ret = 529.1677250021168; |
||
| 505 | } |
||
| 506 | break; |
||
| 507 | |||
| 508 | case 3: |
||
| 509 | { |
||
| 510 | ret = 264.5838625010584; |
||
| 511 | } |
||
| 512 | break; |
||
| 513 | |||
| 514 | case 4: |
||
| 515 | { |
||
| 516 | ret = 132.2919312505292; |
||
| 517 | } |
||
| 518 | break; |
||
| 519 | |||
| 520 | case 5: |
||
| 521 | { |
||
| 522 | ret = 52.91677250021167; |
||
| 523 | } |
||
| 524 | break; |
||
| 525 | |||
| 526 | case 6: |
||
| 527 | { |
||
| 528 | ret = 26.458386250105836; |
||
| 529 | } |
||
| 530 | break; |
||
| 531 | |||
| 532 | case 7: |
||
| 533 | { |
||
| 534 | ret = 13.229193125052918; |
||
| 535 | } |
||
| 536 | break; |
||
| 537 | |||
| 538 | case 8: |
||
| 539 | { |
||
| 540 | ret = 6.614596562526459; |
||
| 541 | } |
||
| 542 | break; |
||
| 543 | |||
| 544 | case 9: |
||
| 545 | { |
||
| 546 | ret = 2.6458386250105836; |
||
| 547 | } |
||
| 548 | break; |
||
| 549 | |||
| 550 | case 10: |
||
| 551 | { |
||
| 552 | ret = 1.3229193125052918; |
||
| 553 | } |
||
| 554 | break; |
||
| 555 | |||
| 556 | case 11: |
||
| 557 | { |
||
| 558 | ret = 0.5291677250021167; |
||
| 559 | } |
||
| 560 | break; |
||
| 561 | #endregion |
||
| 562 | } |
||
| 563 | |||
| 564 | return ret; |
||
| 565 | } |
||
| 566 | |||
| 567 | public override double GetGroundResolution(int zoom, double latitude) |
||
| 568 | { |
||
| 569 | return GetTileMatrixResolution(zoom); |
||
| 570 | } |
||
| 571 | |||
| 572 | Dictionary<int, GSize> extentMatrixMin; |
||
| 573 | Dictionary<int, GSize> extentMatrixMax; |
||
| 574 | |||
| 575 | public override GSize GetTileMatrixMinXY(int zoom) |
||
| 576 | { |
||
| 577 | if(extentMatrixMin == null) |
||
| 578 | { |
||
| 579 | GenerateExtents(); |
||
| 580 | } |
||
| 581 | return extentMatrixMin[zoom]; |
||
| 582 | } |
||
| 583 | |||
| 584 | public override GSize GetTileMatrixMaxXY(int zoom) |
||
| 585 | { |
||
| 586 | if(extentMatrixMax == null) |
||
| 587 | { |
||
| 588 | GenerateExtents(); |
||
| 589 | } |
||
| 590 | return extentMatrixMax[zoom]; |
||
| 591 | } |
||
| 592 | |||
| 593 | void GenerateExtents() |
||
| 594 | { |
||
| 595 | extentMatrixMin = new Dictionary<int, GSize>(); |
||
| 596 | extentMatrixMax = new Dictionary<int, GSize>(); |
||
| 597 | //RectLatLng Extent = RectLatLng.FromLTRB(219818.60040028347, 6407318.126743601, 747927.9899523959, 5826291.964691277); |
||
| 598 | |||
| 599 | for(int i = 0; i <= 11; i++) |
||
| 600 | { |
||
| 601 | double res = GetTileMatrixResolution(i); |
||
| 602 | //extentMatrixMin.Add(i, new GSize(FromPixelToTileXY(LksToPixel(new double[]{ Extent.Left, Extent.Top }, res)))); |
||
| 603 | //extentMatrixMax.Add(i, new GSize(FromPixelToTileXY(LksToPixel(new double[] { Extent.Right, Extent.Bottom }, res)))); |
||
| 604 | |||
| 605 | extentMatrixMin.Add(i, new GSize(FromPixelToTileXY(FromLatLngToPixel(Bounds.LocationTopLeft, i)))); |
||
| 606 | extentMatrixMax.Add(i, new GSize(FromPixelToTileXY(FromLatLngToPixel(Bounds.LocationRightBottom, i)))); |
||
| 607 | } |
||
| 608 | } |
||
| 609 | } |
||
| 610 | } |