Arcgis api For silverlight 加载高德地图

原文 http://www.cnblogs.com/thinkaspx/archive/2012/11/13/2767752.html

地图仅供演示，研究使用。如要商用 请联系厂商。

public class AMapLayer : TiledMapServiceLayer

    {

        private const double cornerCoordinate = 20037508.342787;

        public override void Initialize()

        {



            this.FullExtent = new

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

            {

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

            };





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



            this.TileInfo = new TileInfo()

            {

                Height = 256,

                Width = 256,



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

                {

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

                resolution /= 2;

            }



            // Call base initialize to raise the initialization event 

            base.Initialize();

        }



        public override string GetTileUrl(int level, int row, int col)

        {

            string baseUrl = "http://webrd0{0}.is.autonavi.com/appmaptile?x={1}&y={2}&z={3}&lang=zh_cn&size=1&scale=1&style=7"; ;



            string quard = GetQuard(col, row, level);



            return string.Format(baseUrl, (object)quard[quard.Length - 1], col, row, level);

        }



        public static string GetQuard(int x, int y, int zoomLevel)

        {

            string str = "";

            while (x > 0 || y > 0)

            {

                str = ((x & 1) << 1 | y & 1).ToString() + str;

                x >>= 1;

                y >>= 1;

            }

            return ((object)str).ToString().PadLeft(zoomLevel, '0');

        }

    }