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| 2287 | - | 1 | |
| 2 | namespace GMap.NET.Projections |
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| 3 | { |
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| 4 | #if OLD_PERGO |
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| 5 | using System; |
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| 6 | |||
| 7 | /// <summary> |
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| 8 | /// Plate Carrée (literally, “plane square”) projection |
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| 9 | /// 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]] |
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| 10 | /// </summary> |
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| 11 | public class PlateCarreeProjectionPergo : PureProjection |
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| 12 | { |
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| 13 | public static readonly PlateCarreeProjectionPergo Instance = new PlateCarreeProjectionPergo(); |
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| 14 | |||
| 15 | static readonly double MinLatitude = -85.05112878; |
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| 16 | static readonly double MaxLatitude = 85.05112878; |
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| 17 | static readonly double MinLongitude = -180; |
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| 18 | static readonly double MaxLongitude = 180; |
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| 19 | |||
| 20 | public override RectLatLng Bounds |
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| 21 | { |
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| 22 | get |
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| 23 | { |
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| 24 | return RectLatLng.FromLTRB(MinLongitude, MaxLatitude, MaxLongitude, MinLatitude); |
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| 25 | } |
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| 26 | } |
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| 27 | |||
| 28 | GSize tileSize = new GSize(256, 256); |
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| 29 | public override GSize TileSize |
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| 30 | { |
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| 31 | get |
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| 32 | { |
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| 33 | return tileSize; |
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| 34 | } |
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| 35 | } |
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| 36 | |||
| 37 | public override double Axis |
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| 38 | { |
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| 39 | get |
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| 40 | { |
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| 41 | return 6378137; |
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| 42 | } |
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| 43 | } |
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| 44 | |||
| 45 | public override double Flattening |
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| 46 | { |
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| 47 | get |
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| 48 | { |
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| 49 | return (1.0 / 298.257223563); |
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| 50 | } |
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| 51 | } |
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| 52 | |||
| 53 | public override GPoint FromLatLngToPixel(double lat, double lng, int zoom) |
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| 54 | { |
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| 55 | GPoint ret = GPoint.Empty; |
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| 56 | |||
| 57 | lat = Clip(lat, MinLatitude, MaxLatitude); |
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| 58 | lng = Clip(lng, MinLongitude, MaxLongitude); |
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| 59 | |||
| 60 | GSize s = GetTileMatrixSizePixel(zoom); |
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| 61 | double mapSizeX = s.Width; |
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| 62 | double mapSizeY = s.Height; |
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| 63 | |||
| 64 | double scale = 360.0 / mapSizeX; |
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| 65 | |||
| 66 | ret.Y = (long)((90.0 - lat) / scale); |
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| 67 | ret.X = (long)((lng + 180.0) / scale); |
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| 68 | |||
| 69 | return ret; |
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| 70 | } |
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| 71 | |||
| 72 | public override PointLatLng FromPixelToLatLng(long x, long y, int zoom) |
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| 73 | { |
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| 74 | PointLatLng ret = PointLatLng.Empty; |
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| 75 | |||
| 76 | GSize s = GetTileMatrixSizePixel(zoom); |
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| 77 | double mapSizeX = s.Width; |
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| 78 | double mapSizeY = s.Height; |
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| 79 | |||
| 80 | double scale = 360.0 / mapSizeX; |
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| 81 | |||
| 82 | ret.Lat = 90 - (y * scale); |
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| 83 | ret.Lng = (x * scale) - 180; |
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| 84 | |||
| 85 | return ret; |
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| 86 | } |
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| 87 | |||
| 88 | public override GSize GetTileMatrixMaxXY(int zoom) |
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| 89 | { |
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| 90 | long y = (long)Math.Pow(2, zoom); |
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| 91 | return new GSize((2*y) - 1, y - 1); |
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| 92 | } |
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| 93 | |||
| 94 | public override GSize GetTileMatrixMinXY(int zoom) |
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| 95 | { |
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| 96 | return new GSize(0, 0); |
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| 97 | } |
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| 98 | } |
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| 99 | #endif |
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| 100 | } |