BingMapsSilverlight访问其他地图

最新推荐文章于 2024-04-21 16:05:59 发布

st5173413161

最新推荐文章于 2024-04-21 16:05:59 发布

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分类专栏： BingMaps&amp;SilverLight 文章标签： string methods server url class object

本文链接：https://blog.youkuaiyun.com/st5173413161/article/details/6196682

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本文介绍了两种常用的地图服务实现方式：Google地图和OpenStreetMap。通过具体的类定义和方法实现，展示了如何根据不同模式获取地图瓦片的URI。此外，还提供了OpenStreetMap地图瓦片来源的实例。

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1.Google地图

public class GoogleTile : TileSource
{
    // Fields
    private const string charPhysical = "t";
    private const string charPhysicalHybrid = "p";
    private const string charSatellite = "s";
    private const string charSatelliteHybrid = "y";
    private const string charStreet = "m";
    private const string charStreetOverlay = "h";
    private const string charStreetWaterOverlay = "r";
    private GoogleMapModes MapMode = GoogleMapModes.SatelliteHybrid;
    private int server_rr = 0;
    private const string TilePathBase = "http://mt{0}.google.com/vt/lyrs={1}&z={2}&x={3}&y={4}";

    // Methods
    public override Uri GetUri(int tilePositionX, int tilePositionY, int tileLevel)
    {
        int zoom = tileLevel;
        string uriString = string.Empty;
        this.server_rr = (this.server_rr + 1) % 4;
        switch (this.MapMode)
        {
            case GoogleMapModes.Street:
                uriString = XYZUrl("http://mt{0}.google.com/vt/lyrs={1}&z={2}&x={3}&y={4}", this.server_rr, "m", zoom, tilePositionX, tilePositionY);
                break;

            case GoogleMapModes.Satellite:
                uriString = XYZUrl("http://mt{0}.google.com/vt/lyrs={1}&z={2}&x={3}&y={4}", this.server_rr, "s", zoom, tilePositionX, tilePositionY);
                break;

            case GoogleMapModes.SatelliteHybrid:
                uriString = XYZUrl("http://mt{0}.google.com/vt/lyrs={1}&z={2}&x={3}&y={4}", this.server_rr, "y", zoom, tilePositionX, tilePositionY);
                break;

            case GoogleMapModes.Physical:
                uriString = XYZUrl("http://mt{0}.google.com/vt/lyrs={1}&z={2}&x={3}&y={4}", this.server_rr, "t", zoom, tilePositionX, tilePositionY);
                break;

            case GoogleMapModes.PhysicalHybrid:
                uriString = XYZUrl("http://mt{0}.google.com/vt/lyrs={1}&z={2}&x={3}&y={4}", this.server_rr, "p", zoom, tilePositionX, tilePositionY);
                break;

            case GoogleMapModes.StreetOverlay:
                uriString = XYZUrl("http://mt{0}.google.com/vt/lyrs={1}&z={2}&x={3}&y={4}", this.server_rr, "h", zoom, tilePositionX, tilePositionY);
                break;

            case GoogleMapModes.StreetWaterOverlay:
                uriString = XYZUrl("http://mt{0}.google.com/vt/lyrs={1}&z={2}&x={3}&y={4}", this.server_rr, "r", zoom, tilePositionX, tilePositionY);
                break;
        }
        return new Uri(uriString);
    }

    private static string XYZUrl(string url, int server, string mapmode, int zoom, int tilePositionX, int tilePositionY)
    {
        url = string.Format(url, new object[] { server, mapmode, zoom, tilePositionX, tilePositionY });
        return url;
    }
}

 public enum GoogleMapModes
{
    Street,
    Satellite,
    SatelliteHybrid,
    Physical,
    PhysicalHybrid,
    StreetOverlay,
    StreetWaterOverlay
}

2.OpenStreetMap

public class OpenStreetMapTileSource : TileSource
{
    // Methods
    public OpenStreetMapTileSource() : base("http://tile.openstreetmap.org/{2}/{0}/{1}.png")
    {
    }

    public override Uri GetUri(int x, int y, int zoomLevel)
    {
        return new Uri(string.Format(base.UriFormat, x, y, zoomLevel));
    }
}