C# SharpMap.Map类代码示例

 public void MapSridEqualsFactorySrid()
 {
     var m = new Map();
     Assert.AreEqual(m.SRID, m.Factory.SRID);
     m.SRID = 10;
     Assert.AreEqual(m.SRID, m.Factory.SRID);
 }

        internal static Map Default()
        {       
            string currdir = Directory.GetCurrentDirectory();
            Trace.WriteLine(String.Format("Current directory: {0}", currdir));

            Map map = new Map(new Size(1, 1));
            IDictionary<string, LayerData> dict = Nyc;
            foreach (string layer in dict.Keys)
            {
                string format = String.Format(@"WMS\Server\data\{0}", layer);                
                string path = Path.Combine(currdir, format);
                if (!File.Exists(path))
                    throw new FileNotFoundException("file not found", path);

                string name = Path.GetFileNameWithoutExtension(layer);
                LayerData data = dict[layer];
                ShapeFile source = new ShapeFile(path, true);
                VectorLayer item = new VectorLayer(name, source)
                {
                    SRID = 4326,
                    Style = (VectorStyle)data.Style,
                    SmoothingMode = Smoothing.AntiAlias
                };
                map.Layers.Add(item);
            }
            return map;
        }

    public static Map CreateMap()
    {
      const string getCapabilitiesURI = "http://www2.dmsolutions.ca/cgi-bin/mswfs_gmap?request=GetCapabilities&service=WFS&VERSION=1.0.0";

      Map demoMap = new SharpMap.Map(new Size(600, 600));
      demoMap.MinimumZoom = 0.005;
      demoMap.BackColor = Color.White;

      SharpMap.Layers.VectorLayer layer1 = new SharpMap.Layers.VectorLayer("prov_land");
      WFS prov1 = new WFS(getCapabilitiesURI, "", "prov_land", WFS.WFSVersionEnum.WFS1_1_0);
      layer1.Style.Fill = new SolidBrush(Color.IndianRed);    // States
      //// Options 
      // Defaults: MultiGeometries: true, QuickGeometries: false, GetFeatureGETRequest: false
      // Render with validation...
      prov1.QuickGeometries = false;
      // Important when connecting to an UMN MapServer
      //!!!prov1.GetFeatureGETRequest = true;
      // Ignore multi-geometries...
      prov1.MultiGeometries = false;
      layer1.DataSource = prov1;
      demoMap.Layers.Add(layer1);

      demoMap.ZoomToBox(new SharpMap.Geometries.BoundingBox(-3546709.473205, -869773.355764, 4444893.074820, 3923457.184829));

      return demoMap;
    }

        public static Map InitializeMap(float angle)
        {
            string wmsUrl = "http://dev:8080/geoserver/ows?service=wms&version=1.1.1&request=GetCapabilities";

            Map map = new Map();

            WmsLayer layWms = new WmsLayer("Demis Map", wmsUrl);

            layWms.AddLayer("sf:roads");
            //layWms.AddLayer("Topography");
            //layWms.AddLayer("Hillshading");

            layWms.SetImageFormat(layWms.OutputFormats[0]);
            layWms.ContinueOnError = true;
                //Skip rendering the WMS Map if the server couldn't be requested (if set to false such an event would crash the app)
            layWms.TimeOut = 5000; //Set timeout to 5 seconds
            layWms.SRID = 4326;
            map.Layers.Add(layWms);

            //limit the zoom to 360 degrees width
            map.MaximumZoom = 360;
            map.BackColor = Color.LightBlue;

            map.Zoom = 360;
            map.Center = new Point(0, 0);

            Matrix mat = new Matrix();
            mat.RotateAt(angle, map.WorldToImage(map.Center));
            map.MapTransform = mat;

            map.ZoomToExtents();
            return map;
        }

 public void setup()
 {
     Desc = Helper.Description();
     Assert.That(Desc, Is.Not.Null);
     Map = Helper.Default();
     Assert.That(Map, Is.Not.Null);
 }

	protected void Page_Load(object sender, EventArgs e)
	{
		//Set up the map. We use the method in the App_Code folder for initializing the map
		myMap = MapHelper.InitializeMap(new System.Drawing.Size((int)imgMap.Width.Value,(int)imgMap.Height.Value));
		//Set a gradient theme on the countries layer, based on Population density
		SharpMap.Rendering.Thematics.CustomTheme iTheme = new SharpMap.Rendering.Thematics.CustomTheme(GetCountryStyle);
		SharpMap.Styles.VectorStyle defaultstyle = new SharpMap.Styles.VectorStyle();
		defaultstyle.Fill = Brushes.Gray;
		iTheme.DefaultStyle = defaultstyle;
		(myMap.Layers[0] as SharpMap.Layers.VectorLayer).Theme = iTheme;
		//Turn off the river layer and label-layers
		myMap.Layers[1].Enabled = false;
		myMap.Layers[3].Enabled = false;
		myMap.Layers[4].Enabled = false;
		
		if (Page.IsPostBack) 
		{
			//Page is post back. Restore center and zoom-values from viewstate
			myMap.Center = (ICoordinate)ViewState["mapCenter"];
			myMap.Zoom = (double)ViewState["mapZoom"];
		}
		else
		{
			//This is the initial view of the map. Zoom to the extents of the map:
			//myMap.ZoomToExtents();
            myMap.Center = GeometryFactory.CreateCoordinate(0, 0);
			myMap.Zoom = 360;
			//Create the map
			GenerateMap();
		}
	}

    public static Map InitializeMap()
    {
      string wmsUrl = "http://www2.demis.nl/mapserver/request.asp";
            
      SharpMap.Map map = new SharpMap.Map();

      SharpMap.Layers.WmsLayer layWms = new SharpMap.Layers.WmsLayer("Demis Map", wmsUrl);
      layWms.SpatialReferenceSystem = "EPSG:4326";

      layWms.AddLayer("Bathymetry");
      layWms.AddLayer("Topography");
      layWms.AddLayer("Hillshading");
      
      layWms.SetImageFormat(layWms.OutputFormats[0]);
      layWms.ContinueOnError = true; //Skip rendering the WMS Map if the server couldn't be requested (if set to false such an event would crash the app)
      layWms.TimeOut = 5000; //Set timeout to 5 seconds
      layWms.SRID = 4326;
      map.Layers.Add(layWms);
      
      //limit the zoom to 360 degrees width
      map.MaximumZoom = 360;
      map.BackColor = Color.LightBlue;

      map.Zoom = 360;
      map.Center = new SharpMap.Geometries.Point(0, 0);

      return map;
    }

        public static Map InitializeMap()
        {
            Map map = new Map();

            //string url = "http://labs.metacarta.com/wms-c/tilecache.py?version=1.1.1&request=GetCapabilities&service=wms-c";
            string url = "http://dev:8080/geoserver/gwc/service/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=getcapabilities&TILED=true";
            //string url = "http://dev:8080/geoserver/ows?service=wms&version=1.3.0&request=GetCapabilities&tiled=true";
            //TiledWmsLayer tiledWmsLayer = new TiledWmsLayer("Metacarta", url);
            //tiledWmsLayer.TileSetsActive.Add(tiledWmsLayer.TileSets["avalon"].Name);
            //map.Layers.Add(tiledWmsLayer);
            //map.ZoomToBox(new BoundingBox(-180.0, -90.0, 180.0, 90.0));

            //WmscRequest req;
            //ITileSource tileSource;
            TileAsyncLayer tileLayer;
            //BruTile.Web.TmsTileSource source2 = new TmsTileSource(url);

            var source = new List<ITileSource>(WmscTileSource.CreateFromWmscCapabilties(new System.Uri(url)));

            //            foreach (ITileSource src in source)
            //            {
                tileLayer = new TileAsyncLayer(source[16], "tileLayer" + source[16]);
                tileLayer.MapNewTileAvaliable += map.MapNewTileAvaliableHandler;
                map.BackgroundLayer.Add(tileLayer);
            //            }
            map.ZoomToExtents();

            return map;
        }

    public static Map InitializeMap()
    {
      const string getCapabilitiesURI = "http://steven:8080/eWaterWfsConnector/wfs";

      Map map = new SharpMap.Map(new System.Drawing.Size(600, 600));
      map.MinimumZoom = 0.005;
      map.BackColor = System.Drawing.Color.White;

      SharpMap.Layers.VectorLayer layer1 = new SharpMap.Layers.VectorLayer("test");
      
      WFS prov1 = new WFS(getCapabilitiesURI, "", "Well", WFS.WFSVersionEnum.WFS1_0_0);

      prov1.QuickGeometries = false;
      // Important when connecting to an UMN MapServer
      prov1.GetFeatureGETRequest = true;
      // Ignore multi-geometries...
      prov1.MultiGeometries = false;

      layer1.DataSource = prov1;
      map.Layers.Add(layer1);

      map.ZoomToBox(new SharpMap.Geometries.BoundingBox(574290, 4275299, 702273, 4386402));

      return map;
    }

 protected override void OnRenderInternal(Map map, IPolygon polygon, IGraphics g)
 {
     IPoint pt = polygon.Centroid;
     Point renderingOrigin = Point.Truncate(Transform.WorldtoMap(pt.Coordinate, map));
     g.RenderingOrigin = new PointStruct(renderingOrigin.X, renderingOrigin.Y);
     base.OnRenderInternal(map, polygon, g);
 }

        /// <summary>
        /// Creates an instance of this class
        /// </summary>
        public MagnifierTool(MapBox parentMapBox) 
            : base("Magnifier", "A tool to magnify the portion of the map below the cursor")
        {
            _parentMapBox = parentMapBox;
            _parentMapBox.MapChanged += HandleMapChanged;
            Map = _parentMapBox.Map;

            MagnificationFactor = 1.10;

            Offset = new Size(5,5);

            _magnified = new PictureBox();
            _magnified.Size = new Size(75, 75);
            _magnified.BorderStyle = BorderStyle.FixedSingle;
            _magnified.Visible = false;

            _parentMapBox.Controls.Add(_magnified);

            Map = _parentMapBox.Map;
            _map = Map.Clone();
            _map.Size = _magnified.Size;
            _map.Zoom = _map.Size.Width*(Map.Envelope.Width/Map.Size.Width) / _magnification;
            _map.Center = _map.Center;
            _magnified.Image = _map.GetMap();

            Enabled = true;

            var ms = Assembly.GetExecutingAssembly().GetManifestResourceStream("WinFormSamples.Magnifier.cur");
            if (ms != null)
                Cursor = new Cursor(ms);
        }

    public static SharpMap.Map InitializeGoogleMap(GoogleMapType mt)
    {
        SharpMap.Map map = new SharpMap.Map();

        GoogleRequest req;
        ITileSource tileSource;
        TileAsyncLayer tileLayer;

        if (mt == (GoogleMapType.GoogleSatellite | GoogleMapType.GoogleLabels))
        {
            req = new GoogleRequest(GoogleMapType.GoogleSatellite);
            tileSource = new GoogleTileSource(req);
            tileLayer = new TileAsyncLayer(tileSource, "TileLayer - " + GoogleMapType.GoogleSatellite);
            map.Layers.Add(tileLayer);
            req = new GoogleRequest(GoogleMapType.GoogleLabels);
            tileSource = new GoogleTileSource(req);
            mt = GoogleMapType.GoogleLabels;
        }
        else
        {
            req = new GoogleRequest(mt);
            tileSource = new GoogleTileSource(req);
        }

        tileLayer = new TileAsyncLayer(tileSource, "TileLayer - " + mt);
        map.BackgroundLayer.Add(tileLayer);
        map.ZoomToBox(tileLayer.Envelope);
        return map;
    }

        private static Map InitializeDXF(float angle)
        {
            Map map = new Map();
            //Set the datasource to a shapefile in the App_data folder
            Ogr provider;
            try
            {
                provider = new Ogr("GeoData/SampleDXF.dxf",0);
            }
            catch (TypeInitializationException ex)
            {
                if (ex.Message == "The type initializer for 'OSGeo.OGR.Ogr' threw an exception.")
                {
                    throw new Exception(
                        String.Format(
                            "The application threw a PINVOKE exception. You probably need to copy the unmanaged dll's to your bin directory. They are a part of fwtools {0}. You can download it from: http://home.gdal.org/fwtools/",
                            GdalRasterLayer.FWToolsVersion));
                }
                throw;
            }
            VectorLayer lay = new VectorLayer("SampleDXF", provider);
            map.Layers.Add(lay);
            map.ZoomToExtents();
            Matrix mat = new Matrix();
            mat.RotateAt(angle, map.WorldToImage(map.Center));
            map.MapTransform = mat;

            _ogrSampleDataset = "SampleDXF";
            return map;

        }

    public static Map CreateMap()
    {
      const string getCapabilitiesURI = "http://192.168.25.120:8080/deegree-wfs/services";

      Map map = new SharpMap.Map(new Size(600, 600));
      map.MinimumZoom = 0.005;
      map.BackColor = Color.White;

      SharpMap.Layers.VectorLayer layer1 = new SharpMap.Layers.VectorLayer("Springs");

      WFS prov1 = new WFS(getCapabilitiesURI, "app1", "Springs", WFS.WFSVersionEnum.WFS1_1_0);

      prov1.QuickGeometries = false;
      // Important when connecting to an UMN MapServer
      prov1.GetFeatureGETRequest = true;
      // Ignore multi-geometries...
      prov1.MultiGeometries = false;

      layer1.DataSource = prov1;
      map.Layers.Add(layer1);

      map.ZoomToBox(new SharpMap.Geometries.BoundingBox(574290, 4275299, 702273, 4386402));
      
      return map;
    }

        private static void TestMaps(string name, Map m, Map mD)
        {
            Assert.NotNull(mD);

            Assert.AreEqual(m.Size, mD.Size);
            Assert.AreEqual(m.Layers.Count, mD.Layers.Count);
            var c = new LayerTest.VectorLayerEqualityComparer();
            for (var i = 0; i < m.Layers.Count; i++)
            {
                Assert.IsTrue(c.Equals((VectorLayer)m.Layers[i], 
                                       (VectorLayer)mD.Layers[i]), 
                                       "Layer {0}, '{1}' Differs at {2}",
                                       i, m.Layers[i].LayerName, string.Join(", ", c.DifferAt));
            }

            Assert.AreEqual(m.PixelAspectRatio, mD.PixelAspectRatio);
            Assert.AreEqual(m.PixelHeight, mD.PixelHeight);
            Assert.AreEqual(m.PixelWidth, mD.PixelWidth);
            Assert.AreEqual(m.PixelSize, mD.PixelSize);

            Assert.AreEqual(m.BackColor, mD.BackColor);
            Assert.IsTrue(m.Center.Equals(mD.Center));
            Assert.IsTrue(m.GetExtents().Equals(mD.GetExtents()));
            Assert.IsTrue(m.Envelope.Equals(mD.Envelope));

            Assert.AreEqual(m.Decorations.Count, mD.Decorations.Count);
            Assert.AreEqual(m.SRID, mD.SRID);
            Assert.AreEqual(m.Zoom, mD.Zoom);

            Assert.DoesNotThrow(() => m.GetMap().Save(name + "-S.bmp"));
            Assert.DoesNotThrow(() => mD.GetMap().Save(name + "-D.bmp"));
        }