开源地图 SharpMap

Step1 创建一个地图控件

1、启动Visual Studio 2012 并创建一个新的Windows应用程序

2、调整项目到.net Framework 4.0全框架

3、打开Form1的设计视图

4、在工具箱底部，常规右击点击“选择项” 

4、浏览SharpMap.UI.dll并添加

 

　SharpMap的dll和地图文件网盘共享地址：http://pan.baidu.com/s/1hqzG0de （内含Demo）

5、点击确定如图：

6、拖动MapBox控件插入Form1窗体中

7、将mapBox1控件背景色设置为白色，Dock属性设置为Fill

    

　　

 

Step2 添加一个图层到地图控件

 

1、添加SharpMap.dll到项目

　　

 

2、添加地图文件到项目

　　

 

3、修改窗体构造函数Fomr1()

public Form1()

        {

            InitializeComponent();

            VectorLayer vlay = new VectorLayer("States")

            {

                DataSource = new ShapeFile(@"path_to_data\states_ugl.shp", true)

            };

            mapBox1.Map.Layers.Add(vlay);

            mapBox1.Map.ZoomToExtents();

            mapBox1.Refresh();

            mapBox1.ActiveTool = SharpMap.Forms.MapBox.Tools.Pan;//设置平移

        }

 

4、运行地图可以看到地图，并操作放大、缩小、平移

 

 Step3 给图层添加样式

1、修改窗体构造函数Fomr2() 参见Dome

 

public Form2()

        {

            InitializeComponent();



            SharpMap.Layers.VectorLayer vlay = new SharpMap.Layers.VectorLayer("States");

            vlay.DataSource = new SharpMap.Data.Providers.ShapeFile(@"path_to_data\states_ugl.shp", true);



            //构造土地样式

            VectorStyle landStyle = new VectorStyle();

            landStyle.Fill = new SolidBrush(Color.FromArgb(232, 232, 232));



            //构造水样式

            VectorStyle waterStyle = new VectorStyle();

            waterStyle.Fill = new SolidBrush(Color.FromArgb(198, 198, 255));



            //创建地图

            Dictionary<string, SharpMap.Styles.IStyle> styles = new Dictionary<string, IStyle>();

            styles.Add("land", landStyle);

            styles.Add("water", waterStyle);



            //分配主题

            vlay.Theme = new SharpMap.Rendering.Thematics.UniqueValuesTheme<string>("class", styles, landStyle);



            mapBox1.Map.Layers.Add(vlay);

            mapBox1.Map.ZoomToExtents();

            mapBox1.Refresh();

            mapBox1.ActiveTool = SharpMap.Forms.MapBox.Tools.Pan;

        }

 

2、运行程序，如图

 

 

  Step4 添加WMS-层到地图

1、修改From3构造函数()

   调用http://sampleserver1.arcgisonline.com/ArcGIS/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/WMSServer 服务器记载数据。

 

public Form3()

        {

            InitializeComponent();



            SharpMap.Layers.VectorLayer vlay = new SharpMap.Layers.VectorLayer("States");

            vlay.DataSource = new SharpMap.Data.Providers.ShapeFile(@"path_to_data\states_ugl.shp", true);



            //构造土地样式

            VectorStyle landStyle = new VectorStyle();

            landStyle.Fill = new SolidBrush(Color.FromArgb(232, 232, 232));



            //构造水样式

            VectorStyle waterStyle = new VectorStyle();

            waterStyle.Fill = new SolidBrush(Color.FromArgb(198, 198, 255));



            //创建地图

            Dictionary<string, SharpMap.Styles.IStyle> styles = new Dictionary<string, IStyle>();

            styles.Add("land", landStyle);

            styles.Add("water", waterStyle);



            //分配主题

            vlay.Theme = new SharpMap.Rendering.Thematics.UniqueValuesTheme<string>("class", styles, landStyle);



            mapBox1.Map.Layers.Add(vlay);

            mapBox1.Map.ZoomToExtents();

            mapBox1.Refresh();

            mapBox1.ActiveTool = SharpMap.Forms.MapBox.Tools.Pan;



            SharpMap.Layers.WmsLayer wmsL =new SharpMap.Layers.WmsLayer("US Cities","http://sampleserver1.arcgisonline.com/ArcGIS/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/WMSServer");

            //转换为PNG

            wmsL.SetImageFormat("image/png");

            //11.0版本

            wmsL.Version = "1.1.0";

            //添加城市图层 服务名称2

            wmsL.AddLayer("2");

            //设置 SRID

            wmsL.SRID = 4326;

            mapBox1.Map.Layers.Add(wmsL);

        }

 

 

 

 2、运行程序如图，显示城镇。

 

 Step5 添加一个平铺层作为背景

 在这个步骤中，可以结合网上瓦片服务器数据连同本地数据显示。

 1、添加BruTile.dll、ProjNet.dll、GeoAPI.dll 到项目中

 2、添加辅助方法来创建google坐标系

  private  GeoAPI.CoordinateSystems.IProjectedCoordinateSystem GetEPSG900913(ProjNet.CoordinateSystems.CoordinateSystemFactory csFact)

        {

            List<GeoAPI.CoordinateSystems.ProjectionParameter> parameters = new List<GeoAPI.CoordinateSystems.ProjectionParameter>();

            parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("semi_major", 6378137.0));

            parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("semi_minor", 6378137.0));

            parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("latitude_of_origin", 0.0));

            parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("central_meridian", 0.0));

            parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("scale_factor", 1.0));

            parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("false_easting", 0.0));

            parameters.Add(new GeoAPI.CoordinateSystems.ProjectionParameter("false_northing", 0.0));

            GeoAPI.CoordinateSystems.IProjection projection = csFact.CreateProjection("Google Mercator", "mercator_1sp", parameters);

            GeoAPI.CoordinateSystems.IGeographicCoordinateSystem wgs84 = csFact.CreateGeographicCoordinateSystem(

                "WGS 84", ProjNet.CoordinateSystems.AngularUnit.Degrees, ProjNet.CoordinateSystems.HorizontalDatum.WGS84, ProjNet.CoordinateSystems.PrimeMeridian.Greenwich,

                new GeoAPI.CoordinateSystems.AxisInfo("north", GeoAPI.CoordinateSystems.AxisOrientationEnum.North), new GeoAPI.CoordinateSystems.AxisInfo("east", GeoAPI.CoordinateSystems.AxisOrientationEnum.East)

            );



            GeoAPI.CoordinateSystems.IProjectedCoordinateSystem epsg900913 = csFact.CreateProjectedCoordinateSystem("Google Mercator", wgs84, projection, ProjNet.CoordinateSystems.LinearUnit.Metre,

              new GeoAPI.CoordinateSystems.AxisInfo("East", GeoAPI.CoordinateSystems.AxisOrientationEnum.East), new GeoAPI.CoordinateSystems.AxisInfo("North", GeoAPI.CoordinateSystems.AxisOrientationEnum.North));

            return epsg900913;

        }

 

 3、修改构造函数Form4()

 

        public Form4()

        {

            InitializeComponent();



            SharpMap.Layers.VectorLayer vlay = new SharpMap.Layers.VectorLayer("States");

            vlay.DataSource = new SharpMap.Data.Providers.ShapeFile(@"path_to_data\states_ugl.shp", true);



            //构造土地样式

            VectorStyle landStyle = new VectorStyle();

            landStyle.Fill = new SolidBrush(Color.FromArgb(232, 232, 232));



            //创造水样式

            VectorStyle waterStyle = new VectorStyle();

            waterStyle.Fill = new SolidBrush(Color.FromArgb(198, 198, 255));



            //创造地图

            Dictionary<string, SharpMap.Styles.IStyle> styles = new Dictionary<string, IStyle>();

            styles.Add("land", landStyle);

            styles.Add("water", waterStyle);



            //分配主题

            vlay.Theme = new SharpMap.Rendering.Thematics.UniqueValuesTheme<string>("class", styles, landStyle);



            mapBox1.Map.Layers.Add(vlay);



            ProjNet.CoordinateSystems.Transformations.CoordinateTransformationFactory ctFact = new ProjNet.CoordinateSystems.Transformations.CoordinateTransformationFactory();

            ProjNet.CoordinateSystems.CoordinateSystemFactory csFact = new ProjNet.CoordinateSystems.CoordinateSystemFactory();

            vlay.CoordinateTransformation = ctFact.CreateFromCoordinateSystems(ProjNet.CoordinateSystems.GeographicCoordinateSystem.WGS84, GetEPSG900913(csFact));

            vlay.ReverseCoordinateTransformation = ctFact.CreateFromCoordinateSystems(GetEPSG900913(csFact), ProjNet.CoordinateSystems.GeographicCoordinateSystem.WGS84);





            mapBox1.Map.BackgroundLayer.Add(new SharpMap.Layers.TileAsyncLayer(

                new BruTile.Web.OsmTileSource(), "OSM"));



            mapBox1.Map.ZoomToExtents();

            mapBox1.Refresh();

            mapBox1.ActiveTool = SharpMap.Forms.MapBox.Tools.Pan;



        }

 

 

 4、运行程序，如图：