高分求:Telerik:RadMap 如何自定义地图供应商。

接分为押宝 2012-08-15 03:15:55

目前：Telerik:RadMap 支持
•Bing Maps bing地图（英文）//考虑过引用中文bing，本人无法实现...
•OpenStreet Maps OpenStreet （中国数据不全）
•Empty Provider （空的提供者 ——自定义地图数据源）

附上本人自定义地图数据源测试代码：



xmlns:local="clr-namespace:程序集目录（namespace为隐射出MyMapProvider类）" 

        <telerik:RadMap x:Name="radMap" >

            <telerik:RadMap.Providers>

                <local:MyMapProvider/> //使用MyMapProvider类作为自定义地图数据源

            </telerik:RadMap.Providers>

            <telerik:InformationLayer x:Name="informationLayer">....

            </telerik:InformationLayer>

        </telerik:RadMap>



    public class MyMapProvider : TiledProvider

    {

        /// <summary>

        /// Initializes a new instance of the MyMapProvider class.

        /// </summary>

        public MyMapProvider()

            : base()

        {

            MyMapSource source = new MyMapSource();

            this.MapSources.Add(source.UniqueId, source);

        }

        /// <summary>

        /// Returns the SpatialReference for the map provider.

        /// </summary>

        public override ISpatialReference SpatialReference

        {

            get

            {

                return new MercatorProjection();

            }

        }

    }



   public class MyMapSource : TiledMapSource

    {

        /// <summary>

        /// Initializes a new instance of the MyMapSource class.

        /// </summary>

        public MyMapSource()

            : base(1, 20, 256, 256)

        {

        }

        /// <summary>

        /// Initialize provider.

        /// </summary>

        public override void Initialize()

        {

            // Raise provider initialized event.

            this.RaiseIntializeCompleted();

        }

        /// <summary>

        /// Gets the image URI.

        /// </summary>

        /// <param name="tileLevel">Tile level.</param>

        /// <param name="tilePositionX">Tile X.</param>

        /// <param name="tilePositionY">Tile Y.</param>

        /// <returns>URI of image.</returns>

        protected override Uri GetTile(int tileLevel, int tilePositionX, int tilePositionY)

        {

            int zoomLevel = ConvertTileToZoomLevel(tileLevel);

            // Prepare tile url somehow ...

            string quadkey = new QuadKey(tilePositionX, tilePositionY, tileLevel).Key;

            string uri = "http://r3.tiles.ditu.live.com/tiles/r" + quadkey + ".png?g=47";

            return new Uri(uri);

        }

    }