private IEnumerable<Tile> GetTiles(double lat, double lon, int level, int w, int h)
{
int originalPixelx;
int originalPixely;
TileSystem.LatLongToPixelXy(lat, lon, level, out originalPixelx, out originalPixely);
var originalTile = new Tile(lat, lon, originalPixelx, originalPixely, level);
var tiles = new List<Tile>(8);
const int width = TileSystem.TileWidth;
const int height = TileSystem.TileWidth;
int tilesOnTop = h / 2;
int tilesOnLeft = w / 2;
var topLeftTile = GetTileFromPixels(originalTile.XStartPixel - tilesOnTop * width,
originalTile.YStartPixel - tilesOnLeft * height,
level);
for (byte i = 0; i < w; i++)
{
for (byte j = 0; j < h; j++)
{
var nextTile = GetTileFromPixels(topLeftTile.XStartPixel + i * width,
topLeftTile.YStartPixel + j * height,
level);
tiles.Add(nextTile);
}
}
return tiles.Where(t => t.Latitude > TileSystem.MinLatitude
&& t.Latitude < TileSystem.MaxLatitude
&& t.Longitude > TileSystem.MinLongitude
&& t.Longitude < TileSystem.MaxLongitude);
}
private string GetSoapUrl(Tile tile)
{
var tileQuad = TileSystem.LatLongToQuadKey(tile.Latitude, tile.Longitude, tile.Level);
int origQuad = int.Parse(tileQuad);
return String.Format("http://ak.dynamic.t{0}.tiles.virtualearth.net/comp/ch/{1}?mkt=ru-ru&it=G,VE,BX,L,LA&shading=hill&og=33&n=z",
origQuad % 10, origQuad);
}
