Flex加载google地图、百度地图以及天地图作底图

　一 Flex加载Google地图作底图

　　（1）帮助类GoogleLayer.as

/*

* 根据输入的地图类型加载Google地图(by chenyuming)

*/

package Layers

{

    import com.esri.ags.SpatialReference;

    import com.esri.ags.geometry.Extent;

    import com.esri.ags.geometry.MapPoint;

    import com.esri.ags.layers.TiledMapServiceLayer;

    import com.esri.ags.layers.supportClasses.LOD;

    import com.esri.ags.layers.supportClasses.TileInfo;

    import flash.net.URLRequest;

    public class GoogleLayer extends TiledMapServiceLayer

    {

        private var _tileInfo:TileInfo=new TileInfo();

        private var _baseURL:String="";

        private var MapStyle:String="";

        public function GoogleLayer(mapStyle:String)

        {

            this.MapStyle=mapStyle;

            super();

            buildTileInfo();

            setLoaded(true);  

        }  

        override public function get fullExtent():Extent

        {

            return new Extent(-20037508.342787, -20037508.342787, 20037508.342787, 20037508.342787, new SpatialReference());

        }  

        override public function get initialExtent():Extent

        {

            return new Extent(-20037508.342787, -20037508.342787, 20037508.342787, 20037508.342787, new SpatialReference());

        }  

        override public function get spatialReference():SpatialReference

        {

            return new SpatialReference();

        }  

        override public function get tileInfo():com.esri.ags.layers.supportClasses.TileInfo

        {

            return _tileInfo;

        }  

        override protected function getTileURL(level:Number, row:Number, col:Number):URLRequest

        {

            var s:String = "Galileo".substring(, (( * col + row) % ));

            var    url:String ="";

            if (this.MapStyle == "Vector")//获取矢量地图

            {

                url = "http://mt" + (col % ) + ".google.com/vt/lyrs=m@158000000&hl=zh-CN&gl=cn&" +

                    "x=" + col + "&" +

                    "y=" + row + "&" +

                    "z=" + level + "&" +

                    "s=" + s;

            }

            else if (this.MapStyle == "Terrain")//获取地形图

            {

                url = "http://mt" + (col % ) + ".google.cn/vt/lyrs=t@131,r@227000000&hl=zh-CN&gl=cn&" +

                    "x=" + col + "&" +

                    "y=" + row + "&" +

                    "z=" + level + "&" +

                    "s=" + s;

            }

            else if (this.MapStyle == "Image")//获取影像地图

            {

                url = "http://mt" + (col % ) + ".google.com/vt/lyrs=s&hl=en&gl=en&" +

                    "x=" + col + "&" +

                    "y=" + row + "&" +

                    "z=" + level + "&" +

                    "s=" + s;

            }

            else if (this.MapStyle == "POI")//获取道路等POI，和影像地图配合使用

            {

                url = "http://mt" + (col % ) + ".google.com/vt/imgtp=png32&lyrs=h@169000000&hl=zh-CN&gl=cn&" +

                    "x=" + col + "&" +

                    "y=" + row + "&" +

                    "z=" + level + "&" +

                    "s=" + s;

            }

            return new URLRequest(url);

        }

        public function set url(vals:String):void

        {

            this._baseURL = vals;

        }

        private function buildTileInfo():void

        {

            _tileInfo.height=;

            _tileInfo.width=;

            _tileInfo.origin=new MapPoint(-20037508.342787, 20037508.342787);

            _tileInfo.spatialReference=new SpatialReference();

            _tileInfo.lods = [

                new LOD(, 156543.033928, 591657527.591555),

                new LOD(, 78271.5169639999, 295828763.795777),

                new LOD(, 39135.7584820001, 147914381.897889),

                new LOD(, 19567.8792409999, 73957190.948944),

                new LOD(, 9783.93962049996, 36978595.474472),

                new LOD(, 4891.96981024998, 18489297.737236),

                new LOD(, 2445.98490512499, 9244648.868618),

                new LOD(, 1222.99245256249, 4622324.434309),

                new LOD(, 611.49622628138, 2311162.217155),

                new LOD(, 305.748113140558, 1155581.108577),

                new LOD(, 152.874056570411, 577790.554289),

                new LOD(, 76.4370282850732, 288895.277144),

                new LOD(, 38.2185141425366, 144447.638572),

                new LOD(, 19.1092570712683, 72223.819286),

                new LOD(, 9.55462853563415, 36111.909643),

                new LOD(, 4.77731426794937, 18055.954822),

                new LOD(, 2.38865713397468, 9027.977411),

                new LOD(, 1.19432856685505, 4513.988705),

                new LOD(, 0.597164283559817, 2256.994353),

                new LOD(, 0.298582141647617, 1128.497176)

            ];

        } 

        public function lon2Mercator(px:int):int

        {

            var x:int = px * 20037508.34 / ;

            return x;

        }

        public    function lat2Mercator(py:int):int

        {

            var y:int;

            y = Math.log(Math.tan(( + py) * Math.PI / )) / (Math.PI / );

            y = y * 20037508.34 / ;

            return y;

        }

    }

}

　　（2）引用方法

//加载google地图

var baseLayer:GoogleLayer = new GoogleLayer("Image")

baseMap.addLayer(baseLayer);

　　二 Flex加载百度地图作底图

　　（1）帮助类BaiduLayer.as

/*

* 根据输入的地图类型加载百度地图(by chenyuming)

*/

package Layers

{

    import com.esri.ags.SpatialReference;

    import com.esri.ags.geometry.Extent;

    import com.esri.ags.geometry.MapPoint;

    import com.esri.ags.layers.TiledMapServiceLayer;

    import com.esri.ags.layers.supportClasses.LOD;

    import com.esri.ags.layers.supportClasses.TileInfo;

    import flash.net.URLRequest;

    import flashx.textLayout.formats.Float; 

    public class BaiduLayer extends TiledMapServiceLayer

    {

        //成员变量

        private var _tileInfo:TileInfo = new TileInfo();

        private var _wkid:int = ;

        private var cornerCoordinate:Number = 20037508.3427892;

        private var _mapStyle:String = "Image";

        private var _initialExtent:Extent;

        public function BaiduLayer(mapStyle:String)

        {

            this._mapStyle = mapStyle;

            super();

            buildTileInfo(); // to create our hardcoded tileInfo

            setLoaded(true); // Map will only use loaded layers

        } 

        //  全屏范围

        override public function get fullExtent():Extent

        {

            return new Extent(-cornerCoordinate, -cornerCoordinate, cornerCoordinate, cornerCoordinate, new SpatialReference(_wkid));

        } 

        //  初始化范围 (左下角坐标，右上角坐标)

        override public function get initialExtent():Extent

        {

            return new Extent(5916776.8, 1877209.3, 19242502.6, 7620381.8, new SpatialReference());

        } 

        //  空间参考系

        override public function get spatialReference():SpatialReference

        {

            return new SpatialReference(_wkid);

        } 

        override public function get tileInfo():TileInfo

        {

            return _tileInfo;

        } 

        override protected function getTileURL(level:Number, row:Number, col:Number):URLRequest

        {

            var zoom:int = level - ;

            var offsetX:int = Math.pow(, zoom) as int;

            var offsetY:int = offsetX - ;

            var numX:int = col - offsetX;

            var numY:int = (-row) + offsetY; 

            zoom = level + ;

            var num:int = (col + row) %  + ; 

            var url:String = null;

            if (_mapStyle == "Vector") //获取矢量地图

            {

                url = "http://q"+num+".baidu.com/it/u=x="+numX+";y="+ numY + ";z=" + zoom + ";v=013;type=web&fm=44";

            }

            else if (_mapStyle == "Image") //影像地图

            {

                url = "http://q"+num+".baidu.com/it/u=x="+numX+";y="+numY+";z="+zoom+";v=009;type=sate&fm=46";

            }

            else if (_mapStyle == "POI") //获取道路等POI，和影像地图配合使用

            {

                url = "http://q"+num+".baidu.com/it/u=x="+numX+";y="+numY+";z="+zoom+";v=013;type=trans&fm=47";

            }

            return new URLRequest(url);

        } 

        //  自定义方法，定义地图缩放等级

        private function buildTileInfo():void

        {

            _tileInfo.height=;

            _tileInfo.width=;

            _tileInfo.origin=new MapPoint(-cornerCoordinate, cornerCoordinate);

            _tileInfo.spatialReference=new SpatialReference(_wkid);

            _tileInfo.lods = [

                new LOD(, 156543.033928, 591657527.591555),

                new LOD(, 78271.5169639999, 295828763.795777),

                new LOD(, 39135.7584820001, 147914381.897889),

                new LOD(, 19567.8792409999, 73957190.948944),

                new LOD(, 9783.93962049996, 36978595.474472),

                new LOD(, 4891.96981024998, 18489297.737236),

                new LOD(, 2445.98490512499, 9244648.868618),

                new LOD(, 1222.99245256249, 4622324.434309),

                new LOD(, 611.49622628138, 2311162.217155),

                new LOD(, 305.748113140558, 1155581.108577),

                new LOD(, 152.874056570411, 577790.554289),

                new LOD(, 76.4370282850732, 288895.277144),

                new LOD(, 38.2185141425366, 144447.638572),

                new LOD(, 19.1092570712683, 72223.819286),

                new LOD(, 9.55462853563415, 36111.909643),

                new LOD(, 4.77731426794937, 18055.954822),

                new LOD(, 2.38865713397468, 9027.977411),

                new LOD(, 1.19432856685505, 4513.988705),

                new LOD(, 0.597164283559817, 2256.994353),

                new LOD(, 0.298582141647617, 1128.497176)

            ];

        }

    }

}

　　（2）引用方法

//加载百度地图

var baseLayer:BaiduLayer = new BaiduLayer("Image");

var POILayer:BaiduLayer = new BaiduLayer("POI");

baseMap.addLayer(baseLayer);

baseMap.addLayer(POILayer);

　　三 Flex加载天地图作底图（经纬度投影）

　　（1）帮助类TianDiTuLayer.as

/*

 * 根据输入的地图类型加载天地图(by chenyuming)

 * 注意：投影类型为经纬度

 */

package Layers

{

    import com.esri.ags.SpatialReference;

    import com.esri.ags.geometry.Extent;

    import com.esri.ags.geometry.MapPoint;

    import com.esri.ags.layers.ArcGISDynamicMapServiceLayer;

    import com.esri.ags.layers.TiledMapServiceLayer;

    import com.esri.ags.layers.supportClasses.LOD;

    import com.esri.ags.layers.supportClasses.TileInfo;

    import flash.net.URLRequest;

    import flash.sampler.Sample;

    public class TianDiTuLayer extends TiledMapServiceLayer

    {

        private var _tileInfo:TileInfo;

        private var _baseURL:String;

        private var _baseURLs:Array;

        private var _initExtent:String;

        private var _serviceMode:String;

        private var _imageFormat:String;

        private var _layerId:String;

        private var _tileMatrixSetId:String;

        private var _mapStyle:String="";

        public function TianDiTuLayer(mapStyle:String,serviceMode:String = "KVP",imageFormat:String = "tiles")

        {

            this._mapStyle=mapStyle;//设置地图类型

            this._serviceMode = serviceMode;

            this._imageFormat = imageFormat;

            super();

            this._tileInfo = new TileInfo();

            this._initExtent = null;

            this.buildTileInfo();

            setLoaded(true);

        }  

        override public function get fullExtent() : Extent

        {

            return new Extent(-, -, , , new SpatialReference());

        }  

        public function set initExtent(initextent:String):void

        {

            this._initExtent = initextent;

        } 

        override public function get initialExtent() :Extent

        {

            if (this._initExtent == null)

                return new Extent(70.0, 15.0, 135.0, 55.0, new SpatialReference());

            var coors:Array = this._initExtent.split(",");

            return new Extent(Number(coors[]), Number(coors[]), Number(coors[]) ,Number(coors[]), new SpatialReference());

        }  

        override public function get spatialReference() : SpatialReference

        {

            return new SpatialReference();

        }  

        override public function get tileInfo() : TileInfo

        {

            return this._tileInfo;

        }  

        //根据不同地图类型加载不同WMTS服务

        override protected function getTileURL(level:Number, row:Number, col:Number) : URLRequest

        {

                if(this._mapStyle == "ImageBaseMap")//获取影像地图（底图）

                {

                    _baseURL = "http://t0.tianditu.com/img_c/wmts";

                    _layerId = "img";

                    _tileMatrixSetId = "c";

                }

                else if(this._mapStyle == "ImageCNNote")//获取影像地图（中文注记）

                {

                    _baseURL = "http://t0.tianditu.com/cia_c/wmts";

                    _layerId = "cia";

                    _tileMatrixSetId = "c";

                }

                else if(this._mapStyle == "ImageENNote")//获取影像地图（英文注记）

                {

                    _baseURL = "http://t0.tianditu.com/eia_c/wmts";

                    _layerId = "eia";

                    _tileMatrixSetId = "c";

                }

                else if(this._mapStyle == "TerrainBaseMap")//获取地形图（底图）

                {

                    _baseURL = "http://t0.tianditu.com/ter_c/wmts";

                    _layerId = "ter";

                    _tileMatrixSetId = "c";

                }

                else if(this._mapStyle == "TerrainCNNote")//获取地形图（中文注记）

                {

                    _baseURL = "http://t0.tianditu.com/cta_c/wmts";

                    _layerId = "cta";

                    _tileMatrixSetId = "c";

                }

                else if(this._mapStyle == "TerrainENNote")//获取地形图（英文注记）

                {

                    //暂无

                }

                else if(this._mapStyle == "VectorBaseMap")//获取矢量图（底图）

                {

                    _baseURL = "http://t0.tianditu.com/vec_c/wmts";

                    _layerId = "vec";

                    _tileMatrixSetId = "c";

                }

                else if(this._mapStyle == "VectorCNNote")//获取矢量图（中文注记）

                {

                    _baseURL = "http://t0.tianditu.com/cva_c/wmts";

                    _layerId = "cva";

                    _tileMatrixSetId = "c";

                }

                else if(this._mapStyle == "VectorENNote")//获取矢量图（英文注记）

                {

                    _baseURL = "http://t0.tianditu.com/eva_c/wmts";

                    _layerId = "eva";

                    _tileMatrixSetId = "c";

                }

            var urlRequest:String=_baseURL+ "/wmts?Service=WMTS&Request=GetTile&Version=1.0.0" +

                "&Style=Default&Format="+_imageFormat+"&serviceMode="+_serviceMode+"&layer="+_layerId +

                "&TileMatrixSet="+_tileMatrixSetId+"&TileMatrix=" + level + "&TileRow=" + row + "&TileCol=" + col; 

            return new URLRequest(urlRequest);

        }  

        //切片信息

        private function buildTileInfo() : void

        {

            this._tileInfo.height = ;

            this._tileInfo.width = ;

            this._tileInfo.origin = new MapPoint(-, );

            this._tileInfo.spatialReference = new SpatialReference();

            this._tileInfo.lods = new Array();

            this._tileInfo.lods = [

                new LOD( , 0.703125,    2.958293554545656E8),

                new LOD( , 0.351563,    1.479146777272828E8),

                new LOD( , 0.175781,    7.39573388636414E7),

                new LOD( , 0.0878906,   3.69786694318207E7),

                new LOD( , 0.0439453,   1.848933471591035E7),

                new LOD( , 0.0219727,   9244667.357955175),

                new LOD( , 0.0109863,   4622333.678977588),

                new LOD( , 0.00549316,  2311166.839488794),

                new LOD( , 0.00274658,  1155583.419744397),

                new LOD(, 0.00137329,  577791.7098721985),

                new LOD(, 0.000686646,  288895.85493609926),

                new LOD(, 0.000343323,  144447.92746804963),

                new LOD(, 0.000171661,  72223.96373402482),

                new LOD(, 8.58307e-005, 36111.98186701241),

                new LOD(, 4.29153e-005, 18055.990933506204),

                new LOD(, 2.14577e-005, 9027.995466753102),

                new LOD(, 1.07289e-005, 4513.997733376551),

                new LOD(, 5.36445e-006, 2256.998866688275)

            ];

        }

    }

}

　　（2）引用方法

//加载天地图(经纬度投影)

var baseLayer:TianDiTuLayer = new TianDiTuLayer("VectorBaseMap")//天地图底图

var CNNoteLayer:TianDiTuLayer = new TianDiTuLayer("VectorCNNote");//中文注记

baseMap.addLayer(baseLayer);

baseMap.addLayer(CNNoteLayer);

　　四 Flex加载天地图作底图（球面墨卡托投影）

　　（1）帮助类TianDiTuLayerMercator.as

/*

 * 根据输入的地图类型加载天地图(by chenyuming)

 * 注意：投影类型为球形墨卡托

 */

package Layers

{

    import com.esri.ags.SpatialReference;

    import com.esri.ags.geometry.Extent;

    import com.esri.ags.geometry.MapPoint;

    import com.esri.ags.layers.ArcGISDynamicMapServiceLayer;

    import com.esri.ags.layers.TiledMapServiceLayer;

    import com.esri.ags.layers.supportClasses.LOD;

    import com.esri.ags.layers.supportClasses.TileInfo;

    import flash.net.URLRequest;

    import flash.sampler.Sample;

    public class TianDiTuLayerMercator extends TiledMapServiceLayer

    {

        private var _tileInfo:TileInfo;

        private var _baseURL:String;

        private var _baseURLs:Array;

        private var _initExtent:String;

        private var _layerId:String;

        private var _mapStyle:String="";

        public function TianDiTuLayerMercator(mapStyle:String)

        {

            this._mapStyle=mapStyle;//设置地图类型

            super();

            this._tileInfo = new TileInfo();

            this._initExtent = null;

            this.buildTileInfo();

            setLoaded(true);

        }  

        override public function get fullExtent() : Extent

        {

            return new Extent(-20037508.3427892,-20037508.3427892, 20037508.3427892,20037508.3427892, new SpatialReference());

        }  

        public function set initExtent(initextent:String):void

        {

            this._initExtent = initextent;

        } 

        override public function get initialExtent() :Extent

        {

            if (this._initExtent == null)

                return new Extent(8397502.3, 2660018.1, 15003861.0, 5509344.0, new SpatialReference());

            var coors:Array = this._initExtent.split(",");

            return new Extent(Number(coors[]), Number(coors[]), Number(coors[]) ,Number(coors[]), new SpatialReference());

        }  

        override public function get spatialReference() : SpatialReference

        {

            return new SpatialReference();

        }  

        override public function get tileInfo() : TileInfo

        {

            return this._tileInfo;

        }  

        //根据不同地图类型加载不同WMTS服务

        override protected function getTileURL(level:Number, row:Number, col:Number) : URLRequest

        {

            _baseURL = "http://t0.tianditu.com";

            if(this._mapStyle == "ImageBaseMap")//获取影像地图（底图）

            {

                _layerId = "img_w";

            }

            else if(this._mapStyle == "ImageCNNote")//获取影像地图（中文注记）

            {

                _layerId = "cia_w";

            }

            else if(this._mapStyle == "ImageENNote")//获取影像地图（英文注记）

            {

                _layerId = "eia_w";

            }

            else if(this._mapStyle == "TerrainBaseMap")//获取地形图（底图）

            {

                _layerId = "ter_w";

            }

            else if(this._mapStyle == "TerrainCNNote")//获取地形图（中文注记）

            {

                _layerId = "cta_w";

            }

            else if(this._mapStyle == "TerrainENNote")//获取地形图（英文注记）

            {

                //暂无

            }

            else if(this._mapStyle == "VectorBaseMap")//获取矢量图（底图）

            {

                _layerId = "vec_w";

            }

            else if(this._mapStyle == "VectorCNNote")//获取矢量图（中文注记）

            {

                _layerId = "cva_w";

            }

            else if(this._mapStyle == "VectorENNote")//获取矢量图（英文注记）

            {

                _layerId = "eva_w";

            }

            var urlRequest:String =_baseURL+"/DataServer?T="+_layerId+"&x="+col+"&y="+row+"&l="+level; 

            return new URLRequest(urlRequest);

        }  

        //切片信息

        private function buildTileInfo() : void

        {

            this._tileInfo.height = ;

            this._tileInfo.width = ;

            this._tileInfo.origin = new MapPoint(-20037508.3427892,20037508.3427892,new SpatialReference());

            this._tileInfo.spatialReference = new SpatialReference();

            this._tileInfo.lods = new Array();

            this._tileInfo.lods = [

                new LOD( ,77664.761018562790697674418604651, 2.958293554545656E8),

                new LOD( ,38832.380509281395348837209302326, 1.479146777272828E8),

                new LOD( ,19416.190254640697674418604651163, 7.39573388636414E7),

                new LOD( ,9708.0951273203488372093023255814, 3.69786694318207E7),

                new LOD( ,4854.0475636601744186046511627907, 1.848933471591035E7),

                new LOD( ,2427.0237818300872093023255813953, 9244667.357955175),

                new LOD( ,1213.5118909150436046511627906977, 4622333.678977588),

                new LOD( ,606.75594545752180232558139534884, 2311166.839488794),

                new LOD( ,303.37797272876090116279069767442, 1155583.419744397),

                new LOD(,151.68898636438045058139534883721, 577791.7098721985),

                new LOD(, 75.844493182190225290697674418605, 288895.85493609926),

                new LOD(, 37.922246591095112645348837209302, 144447.92746804963),

                new LOD(, 18.961123295547556322674418604651, 72223.96373402482),

                new LOD(, 9.4805616477737781613372093023256, 36111.98186701241),

                new LOD(, 4.7402808238868890806686046511628, 18055.990933506204),

                new LOD(, 2.3701404119434445403343023255814, 9027.995466753102),

                new LOD(, 1.1850702059717222701671511627907, 4513.997733376551),

                new LOD(, 0.59253510298586113508357558139535, 2256.998866688275)

            ];

        }

    }

}

　　（2）引用方法

//加载天地图（球面墨卡托投影）

var baseLayer:TianDiTuLayerMercator = new TianDiTuLayerMercator("ImageBaseMap")//天地图底图

var CNNoteLayer:TianDiTuLayerMercator = new TianDiTuLayerMercator("ImageCNNote");//中文注记

baseMap.addLayer(baseLayer);

baseMap.addLayer(CNNoteLayer);

　　五天地图WMTS服务

　　服务资源。

Flex加载google地图、百度地图以及天地图作底图的更多相关文章

ARCGIS FLEX API加载google地图、百度地图、天地图（转）
http://www.cnblogs.com/chenyuming507950417/ Flex加载google地图.百度地图以及天地图作底图一 Flex加载Google地图作底图 (1)帮助类G ...
ArcGIS API for Silverlight 加载google地图
原文:ArcGIS API for Silverlight 加载google地图 using System; using System.Net; using System.Windows; using ...
ArcGIS API for Silverlight加载google地图（后续篇）
原文: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/8 ...
《ArcGIS Runtime SDK for Android开发笔记》——（13）、图层扩展方式加载Google地图
1.前言 http://mt2.google.cn/vt/lyrs=m@225000000&hl=zh-CN&gl=cn&x=420&y=193&z=9& ...
ArcGIS API for Silverlight中加载Google地形图（瓦片图）
原文:ArcGIS API for Silverlight中加载Google地形图(瓦片图) 在做水利.气象.土地等行业中,若能使用到Google的地形图那是再合适不过了,下面就介绍如何在ArcGIS ...
Flex 加载pdf
如果想要在flex加载pdf,虽然pdf格式是开源的,但是自己去解析太麻烦了,pdf还要分页之类的,现在网上各种文档上传可以在线看很多都是pdf,当然也有word,excel之类,其实很多都是转了sw ...
Flex 加载 wmf，svg
最近做gis系统发现要在flex加载wmf图片.我记得flash的loader只能是png,gis,jpg.wmf格式居然是window出的,flash居然不支持我也是醉了,没办法,只能后台转格式,首 ...
使用WebGL加载Google街景图
我们要实现的功能比较简单:首先通过坐标定位.我的位置.地址搜索等方式,调用google map api获取地址信息.然后根据地址信息中的全景信息获取当前缩放级别的全景信息.最终把这些全景信息通过Web ...
Flex 加载dwg
之前写的几种格式不是专门gis格式,这次来说说加载dwg.首先dwg格式不同于dxf格式,虽然autocad都能加载进去,真正用的比较多的是dwg格式,反正测绘,国土规划部门都是,吐槽下,然而auto ...

随机推荐

黑马程序员——OC语言核心语法（2）
Java培训.Android培训.iOS培训..Net培训.期待与您交流! (以下内容是对黑马苹果入学视频的个人知识点总结) (一)id 1)简介:万能指针,能指向任何OC对象,相当于NSObject ...
android基础（二）Broadcast Receiver知识
1.广播的注册 (1)动态广播注册: 优点:可以灵活控制广播的注册与撤销缺点:必须在程序启动时才能接收广播 IntentFilter :当Intent在组建之间传递时,组件想告诉android系统自 ...
hadoop map-red的执行过程
hadoop的 map-red就是一个并行计算平台,我们在使用这个平台的时候,要做的事情就是提交自己定制的任务(job,主要定制map类,reduce类,combine类等类),然后设置job的各种参 ...
永不消逝的电波（二）HackRF入门：家用无线门铃信号重放
0×00 前言在第一篇文章:永不消逝的电波(一):无线电入门篇我们了解了一下无线电的发展史以及无线电的一些物理知识,在第二篇里我们将用HackRF录制家用门铃的无线信号,然后重放门铃信号. 门铃从 ...
php实现文件下载
<?php $filename = '路径+实际文件名'; //文件的类型 header('Content-type: application/octstream'); //下载显示的名字 he ...
B-Tree算法分析与实现
在数据库系统中,或者说在文件系统中,针对存储在磁盘上的数据读取和在内存中是有非常大的区别的,因为内存针对任意在其中的数据是随机访问的,然而从磁盘中读取数据是需要通过机械的方式来读取一个block,不能 ...
android4.x获取（也可监测）外置sd路径和读写
先上图: 这个小demo是判断手机上是否插入了sd卡(手动插入到手机卡槽的情况),如果拔出sd卡,也会检测到,检测到没有sd的话会提示退出.大家可以修改代码达到自己想要的效果. sd的卡装载状态是从系 ...
神奇的盒模型（BFC）
上一篇我提到每一个元素都有自己的display属性,其属性值可以改变.其改变的方式,可以利用神奇的css盒模型(BFC). 盒模型,是css可视化格式化系统的基础,可以用于元素定位和网页布局.一个盒模 ...
dashboard
http://www.htmleaf.com/pins/chart-doc/index.html http://www.flotcharts.org/flot/examples/ https://gi ...
python 字典操作
字典的常用操作: clear 功能:清空字典 dict_li = {'users':'swht','age':'18',} dict_li.clear() 返回结果:dict_li {} copy 功 ...

Flex加载google地图、百度地图以及天地图作底图

一 Flex加载Google地图作底图

二 Flex加载百度地图作底图

三 Flex加载天地图作底图（经纬度投影）

四 Flex加载天地图作底图（球面墨卡托投影）

五 天地图WMTS服务

Flex加载google地图、百度地图以及天地图作底图的更多相关文章

随机推荐

热门专题

　一 Flex加载Google地图作底图

　　二 Flex加载百度地图作底图

　　三 Flex加载天地图作底图（经纬度投影）

　　四 Flex加载天地图作底图（球面墨卡托投影）

　　五天地图WMTS服务