ArcGIS WebAPI接入google瓦片服务

public class Googlemap:TiledMapServiceLayer

{

//public bool chn;

publicstring _mapType = null;

publicoverridevoid Initialize()

{

//this.Opacity = 0.5;

this.FullExtent = new

ESRI.ArcGIS.Client.Geometry.Envelope(-20037508.342787, -20037508.342787, 20037508.342787, 20037508.342787);//(-180,-85.0511287798066,180, 85.0511287798066)

{

SpatialReference = new ESRI.ArcGIS.Client.Geometry.SpatialReference(102100);

};

this.SpatialReference = new ESRI.ArcGIS.Client.Geometry.SpatialReference(102100);

//this.InitialExtent = this.FullExtent;

this.TileInfo = new TileInfo()

{

Height = 256,

Width = 256,

Origin = new ESRI.ArcGIS.Client.Geometry.MapPoint(-20037508.342787,20037508.342787)//Origin = new ESRI.ArcGIS.Geometry.MapPoint(-180,90)

{

SpatialReference = new ESRI.ArcGIS.Client.Geometry.SpatialReference(102100)

},

Lods = new Lod[20]

};

double resolution = 156543.033928;

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

{

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

resolution /= 2;

}

base.Initialize();

}



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

{

string url = null;

if (_mapType == “poi”)

{

string baseUrl = “http://mt1.google.cn/vt/imgtp% ... Bx%3D”;

url = baseUrl + col.ToString() + “&amp;y=” +row.ToString() + “&amp;z=” + level.ToString() + “&amp;s=Ga”;



}

elseif (_mapType == “image”)

{

string baseUrl = “http://mt3.google.cn/vt/lyrs%3 ... Bx%3D”;

url = baseUrl + col.ToString() + “&amp;y=” +row.ToString() + “&amp;z=” + level.ToString() + “&amp;s=”;

}

elseif (_mapType == “map”)

{

string baseUrl = “http://mt0.google.cn/vt/lyrs%3 ... Bx%3D”;

url = baseUrl + col.ToString() + “&amp;y=” +row.ToString() + “&amp;z=” + level.ToString() + “&amp;s=Ga”;

}

return url;

}

}