public TileDef[] GetTiles(int levelOfDetail, Rect requestRect, out int width, out int height)
{
uint tileCountOfWidth = GetMapSize(levelOfDetail) / (uint)_tileSize.Width;
float resTileX = (float)(_mapFullRect.Width / tileCountOfWidth);
float resTileY = (float)(_mapFullRect.Height / tileCountOfWidth);
uint bx = 0;
if (requestRect.X > _mapFullRect.X)
{
bx = (uint)((requestRect.X - _mapFullRect.X) / resTileX);
}
uint by = 0;
if (requestRect.Y > _mapFullRect.Y)
{
by = (uint)((requestRect.Y - _mapFullRect.Y) / resTileY);
}
uint offset = 1;
if (levelOfDetail == 1)
{
offset = 0;
}
uint ex = bx + offset + (uint)Math.Ceiling(Math.Min(requestRect.Width, _mapFullRect.Width) / resTileX);
uint ey = by + offset + (uint)Math.Ceiling(Math.Min(requestRect.Height, _mapFullRect.Height) / resTileY);
width = (int)((ex - bx) * _tileSize.Width);
height = (int)((ey - by) * _tileSize.Height);
List <TileDef> tiles = new List <TileDef>();
for (uint c = bx; c < ex; c++)
{
for (uint r = by; r < ey; r++)
{
string quadkey = TileXYToQuadKey(c, r, levelOfDetail);
Rect rect = new Rect(_mapFullRect.X + c * resTileX, _mapFullRect.Y + r * resTileY, resTileX, resTileY);
TileDef tile = new TileDef(r, c, rect, quadkey);
tiles.Add(tile);
}
}
return(tiles.Count > 0 ? tiles.ToArray() : null);
}
//
public string GetMapImageUrl(TileDef tileDef)
{
return(string.Format(_urlTemplate, tileDef.Quadkey));
}
public string GetMapImageUrl(TileDef tileDef)
{
_mapServiceClient.GetMapImageByQuadkeyAsync(tileDef.Quadkey, tileDef.Rect.X, tileDef.Rect.Y, tileDef.Rect.Width, tileDef.Rect.Height, 256, 256);
return(null);
}
