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publicclasstianditu :TiledMapServiceLayer

{

publicstring _mapType = null;

privatestring[] _hosts = newstring[] { “tile0″,
“tile1″, “tile2″,
“tile3″, “tile4″,
“tile5″, “tile6″,
“tile6″, “tile7″
};

public

{

this.FullExtent
= new
ESRI.ArcGIS.Client.Geometry.Envelope(180,-90,-180,90);        {

SpatialReference = newESRI.ArcGIS.Client.Geometry.SpatialReference(4326);

};

this.SpatialReference
= new
ESRI.ArcGIS.Client.Geometry.SpatialReference(4326);

this.TileInfo
= new TileInfo()

{

Height = 256,

Width = 256,

Origin = new
ESRI.ArcGIS.Client.Geometry.MapPoint(-90d,45d)            {

SpatialReference = new
ESRI.ArcGIS.Client.Geometry.SpatialReference(4326)

},

Lods = new
Lod[18]

};

double
resolution = 0.3515625;

for (int i = 0; i <TileInfo.Lods.Length; i++)

{

TileInfo.Lods[i] = new Lod() { Resolution = resolution };

resolution /= 2;

}

base.Initialize();

}

publicoverridestring
GetTileUrl(int level, int
row, int col)

{

int
index = Math.Abs(col % 7);

string
host = _hosts[index];

string
url=“”;

if(_mapType==
“map”)

{

if
(level < 10)

{

url=string.Format(“http://{0}.tianditu.com/DataServer?T=A0512_EMap&X={1}&Y={2}&L={3}”,
host, col, row, level+1);

}

elseif (level < 12)

{

url=string.Format(“http://{0}.tianditu.com/DataServer?T=B0627_EMap1112&X={1}&Y={2}&L={3}”,
host, col, row, level+1);

}

else

{

url=string.Format(“http://{0}.tianditu.com/DataServer?T=siwei0608&X={1}&Y={2}&L={3}”,
host, col, row, level+1);

}

}

if
(_mapType == “Vanno”)

{

if
(level < 10)

{

url = string.Format(“http://{0}.tianditu.com/DataServer?T=AB0512_Anno&X={1}&Y={2}&L={3}”,
host, col, row, level + 1);

}

}

if
(_mapType == “img”)

{

if
(level < 10)

{

url = string.Format(“http://{0}.tianditu.com/DataServer?T=sbsm0210&X={1}&Y={2}&L={3}”,
host, col, row, level + 1);

}

elseif (level == 10)

{

url = string.Format(“http://{0}.tianditu.com/DataServer?T=e11&X={1}&Y={2}&L={3}”,
host, col, row, level + 1);

}

elseif (level == 11)

{

url = string.Format(“http://{0}.tianditu.com/DataServer?T=e12&X={1}&Y={2}&L={3}”,
host, col, row, level + 1);

}

elseif (level == 12)

{

url = string.Format(“http://{0}.tianditu.com/DataServer?T=e13&X={1}&Y={2}&L={3}”,
host, col, row, level + 1);

}

elseif (level == 13)

{

url = string.Format(“http://{0}.tianditu.com/DataServer?T=eastdawnall&X={1}&Y={2}&L={3}”,
host, col, row, level + 1);

}

else

{

url = string.Format(“http://{0}.tianditu.com/DataServer?T=sbsm1518&X={1}&Y={2}&L={3}”,
host, col, row, level + 1);

}

}

return
url;

}

}