public static TileRequest LatLongToTile(GeoPoint point, int zLevel)
{
return new TileRequest
{
X = (int) Math.Floor(LongitudeToX(point.Longitude)*Math.Pow(2, zLevel)/TileSize),
Y = (int) Math.Floor(LatitudeToY(point.Latitude)*Math.Pow(2, zLevel)/TileSize),
Z = zLevel
};
}
public object Get(GetTileRequests request)
{
var point = new GeoPoint
{
Latitude = request.Latitude,
Longitude = request.Longitude
};
return TileRequest.LatLongToTiles(point);
}
/// <summary>
/// This is the NorthWest Corner of the tile
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="z"></param>
/// <returns></returns>
private static GeoPoint ToLatLong(double x, double y, double z)
{
var newPoint = new GeoPoint();
var n = Math.PI - ((2.0*Math.PI*y)/Math.Pow(2.0, z));
newPoint.Longitude = (float) ((x/Math.Pow(2.0, z)*360.0) - 180.0);
newPoint.Latitude = (float) (180.0/Math.PI*Math.Atan(Math.Sinh(n)));
return newPoint;
}
public static List<TileRequest> LatLongToTiles(GeoPoint point)
{
return Enumerable.Range(0, LowestLevel).Select(index => LatLongToTile(point, index)).ToList();
}