public TileAddress QuadTreeToTile(string quadtree, int zoom)
{
TileAddress retval = new TileAddress();
try
{
var tx = 0;
var ty = 0;
for (var i = zoom; i >= 1; i--)
{
var ch = quadtree[zoom - i];
var mask = 1 << (i - 1);
var digit = ch - '0';
if (Convert.ToBoolean(digit & 1))
tx += mask;
if (Convert.ToBoolean(digit & 2))
ty += mask;
}
ty = ((1 << zoom) - 1) - ty;
retval.X = tx;
retval.Y = ty;
return retval;
}
catch (Exception ex)
{
throw ex;
}
}
public TileAddress PixelsToTile(double px, double py)
{
TileAddress retval = new TileAddress();
try
{
retval.X = (int)(Math.Ceiling(Convert.ToDouble(px / this.tileSize)) - 1);
retval.Y = (int)(Math.Ceiling(Convert.ToDouble(py / this.tileSize)) - 1);
return retval;
}
catch (Exception ex)
{
throw ex;
}
}
public TileAddress MetersToTile(double mx, double my, int zoom)
{
TileAddress retval = new TileAddress();
try
{
var p = this.MetersToPixels(mx, my, zoom);
retval = this.PixelsToTile(p.X, p.Y);
return retval;
}
catch (Exception ex)
{
throw ex;
}
}
public TileAddress LatLonToTile(double lat, double lon, int zoom)
{
TileAddress retval = new TileAddress();
try
{
var m = this.LatLonToMeters(lat, lon);
retval = this.MetersToTile(m.X, m.Y, zoom);
return retval;
}
catch (Exception ex)
{
throw ex;
}
}
public TileAddress GoogleTile(int tx, int ty, int zoom)
{
TileAddress retval = new TileAddress();
try
{
retval.X = tx;
retval.Y = Convert.ToInt32((Math.Pow(2, zoom) - 1) - ty);
return retval;
}
catch (Exception ex)
{
throw ex;
}
}
protected void saveImage(Graphics g,Bitmap bmp,TileAddress tile,int level)
{
g.Flush();
string filename=Path.Combine(tileDir,string.Format("{0}\\{1}\\{2}.png",level,tile.X,tile.Y));
Directory.CreateDirectory(Path.GetDirectoryName(filename));
bmp.Save(filename);
}
