ArcGIS API for Silverlight加载google地图（后续篇）

之前在博客中（http://blog.csdn.net/taomanman/article/details/8019687）提到的加载google地图方案，因为google地址问题，看不到图了，发现是url地址变换造成的。

现将如下三个类公布出来，源码如下：

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using ESRI.ArcGIS.Client;
using ESRI.ArcGIS.Client.Geometry;

namespace MapClient.CommonClass
{
    public class GoogleMapLayer : TiledMapServiceLayer
    {
        private const double cornerCoordinate = 20037508.3427892;
        public string _baseURL = "t@131"; //google地形图

        public override void Initialize()
        {
            ESRI.ArcGIS.Client.Projection.WebMercator mercator = new ESRI.ArcGIS.Client.Projection.WebMercator();
            this.FullExtent = new ESRI.ArcGIS.Client.Geometry.Envelope(-20037508.3427892, -20037508.3427892, 20037508.3427892, 20037508.3427892)
            {
                SpatialReference = new SpatialReference(102100)
            };
            //图层的空间坐标系
            this.SpatialReference = new SpatialReference(102100);
            // 建立切片信息，每个切片大小256*256px，共16级.
            this.TileInfo = new TileInfo()
            {
                Height = 256,
                Width = 256,
                Origin = new MapPoint(-cornerCoordinate, cornerCoordinate) { SpatialReference = new ESRI.ArcGIS.Client.Geometry.SpatialReference(102100) },
                Lods = new Lod[18]
            };
            //为每级建立方案，每一级是前一级别的一半.
            double resolution = cornerCoordinate * 2 / 256;
            for (int i = 0; i < TileInfo.Lods.Length; i++)
            {
                TileInfo.Lods[i] = new Lod() { Resolution = resolution };
                resolution /= 2;
            }
            // 调用初始化函数
            base.Initialize();
        }

        public override string GetTileUrl(int level, int row, int col)
        {
            string url = "http://mt1.google.cn/vt/lyrs=" + _baseURL + ",r@225000000&&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=Ga";
            if (_baseURL == "t@131")
            {
                //地形图
                url = "http://mt1.google.cn/vt/lyrs=" + _baseURL + ",r@225000000&&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=Ga";
            }
            if (_baseURL == "s@132")
            {
                //卫星图
                url = "http://mt3.google.cn/vt/lyrs=" + _baseURL + "&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=G";
            }
            if (_baseURL == "m@225000000")
            {
                //街道图
                url = "http://mt1.google.cn/vt/lyrs=" + _baseURL + "&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=Ga";
            }
            return string.Format(url);
        }
    }
}

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using ESRI.ArcGIS.Client;
using ESRI.ArcGIS.Client.Geometry;

namespace MapClient.CommonClass
{
    public class GoogleMapRoadLayer : TiledMapServiceLayer
    {
        private const double cornerCoordinate = 20037508.3427892;
        private string _baseURL = "m@225000000"; //google交通图

        public override void Initialize()
        {
            ESRI.ArcGIS.Client.Projection.WebMercator mercator = new ESRI.ArcGIS.Client.Projection.WebMercator();
            this.FullExtent = new ESRI.ArcGIS.Client.Geometry.Envelope(-20037508.3427892, -20037508.3427892, 20037508.3427892, 20037508.3427892)
            {
                SpatialReference = new SpatialReference(102100)
            };
            //图层的空间坐标系
            this.SpatialReference = new SpatialReference(102100);
            // 建立切片信息，每个切片大小256*256px，共16级.
            this.TileInfo = new TileInfo()
            {
                Height = 256,
                Width = 256,
                Origin = new MapPoint(-cornerCoordinate, cornerCoordinate) { SpatialReference = new ESRI.ArcGIS.Client.Geometry.SpatialReference(102100) },
                Lods = new Lod[19]
            };
            //为每级建立方案，每一级是前一级别的一半.
            double resolution = cornerCoordinate * 2 / 256;
            for (int i = 0; i < TileInfo.Lods.Length; i++)
            {
                TileInfo.Lods[i] = new Lod() { Resolution = resolution };
                resolution /= 2;
            }
            // 调用初始化函数
            base.Initialize();
        }

        public override string GetTileUrl(int level, int row, int col)
        {
            string url = "http://mt1.google.cn/vt/lyrs=" + _baseURL + ",r@225000000&&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=Ga";
            if (_baseURL == "t@131")
            {
                //地形图
                url = "http://mt1.google.cn/vt/lyrs=" + _baseURL + ",r@225000000&&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=Ga";
            }
            if (_baseURL == "s@132")
            {
                //卫星图
                url = "http://mt3.google.cn/vt/lyrs=" + _baseURL + "&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=G";
            }
            if (_baseURL == "m@225000000")
            {
                //街道图
                url = "http://mt1.google.cn/vt/lyrs=" + _baseURL + "&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=Ga";
            }
            return string.Format(url);
        }
    }
}

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using ESRI.ArcGIS.Client;
using ESRI.ArcGIS.Client.Geometry;

namespace MapClient.CommonClass
{
    public class GoogleMapSateliateLayer : TiledMapServiceLayer
    {
        private const double cornerCoordinate = 20037508.3427892;
        private string _baseURL = "s@132"; //google卫星图

        public override void Initialize()
        {
            ESRI.ArcGIS.Client.Projection.WebMercator mercator = new ESRI.ArcGIS.Client.Projection.WebMercator();
            this.FullExtent = new ESRI.ArcGIS.Client.Geometry.Envelope(-20037508.3427892, -20037508.3427892, 20037508.3427892, 20037508.3427892)
            {
                SpatialReference = new SpatialReference(102100)
            };
            //图层的空间坐标系
            this.SpatialReference = new SpatialReference(102100);
            // 建立切片信息，每个切片大小256*256px，共16级.
            this.TileInfo = new TileInfo()
            {
                Height = 256,
                Width = 256,
                Origin = new MapPoint(-cornerCoordinate, cornerCoordinate) { SpatialReference = new ESRI.ArcGIS.Client.Geometry.SpatialReference(102100) },
                Lods = new Lod[20]
            };
            //为每级建立方案，每一级是前一级别的一半.
            double resolution = cornerCoordinate * 2 / 256;
            for (int i = 0; i < TileInfo.Lods.Length; i++)
            {
                TileInfo.Lods[i] = new Lod() { Resolution = resolution };
                resolution /= 2;
            }
            // 调用初始化函数
            base.Initialize();
        }

        public override string GetTileUrl(int level, int row, int col)
        {
            string url = "http://mt1.google.cn/vt/lyrs=" + _baseURL + ",r@225000000&&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=Ga";
            if (_baseURL == "t@131")
            {
                //地形图
                url = "http://mt1.google.cn/vt/lyrs=" + _baseURL + ",r@225000000&&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=Ga";
            }
            if (_baseURL == "s@132")
            {
                //卫星图
                url = "http://mt3.google.cn/vt/lyrs=" + _baseURL + "&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=G";
            }
            if (_baseURL == "m@225000000")
            {
                //街道图
                url = "http://mt1.google.cn/vt/lyrs=" + _baseURL + "&hl=zh-CN&gl=CN&src=app&" + "x=" + col + "&" + "y=" + row + "&" + "z=" + level + "&s=Ga";
            }
            return string.Format(url);
        }
    }
}