C# SharpMap.Map.ZoomToExtents方法代码示例

        public static SharpMap.Map InitializeMap(float angle)
        {
            var dataSource = new SharpMap.Data.Providers.ShapeFile(
                string.Format("{0}/roads.shp", ShapefileSample.PathOsm), true);
            
            var fds = new SharpMap.Data.FeatureDataSet();
            dataSource.Open();
            dataSource.ExecuteIntersectionQuery(dataSource.GetExtents(), fds);
            dataSource.Close();

            var gfp = new SharpMap.Data.Providers.GeometryFeatureProvider(fds.Tables[0]);
            var vl = new SharpMap.Layers.VectorLayer("roads", gfp)
                         {
                             CoordinateTransformation = LayerTools.Dhdn2ToWgs84
                         };
            var ll = new SharpMap.Layers.LabelLayer("labels")
                         {
                             DataSource = gfp,
                             CoordinateTransformation = LayerTools.Dhdn2ToWgs84,
                             LabelColumn = "name",
                             MultipartGeometryBehaviour =
                                 SharpMap.Layers.LabelLayer.MultipartGeometryBehaviourEnum.Largest,
                         };
            ll.Style.Halo = new System.Drawing.Pen(System.Drawing.Color.Red);
            //ll.Style.IgnoreLength = true;

            var map = new SharpMap.Map();
            map.Layers.Add(vl);
            map.Layers.Add(ll);

            map.Layers.Add(vl);
            map.ZoomToExtents();
            return map;
        }

        public void render2d(Project project, PictureBox picBox)
        {

            SharpMap.Map myMap = new SharpMap.Map();

            foreach (BuildLayer layer in project.getLayers())
            {
                Source source = layer.getSource();

                BoundingBox envelope = new BoundingBox(-1000.0, -1000.0, 1000.0, 1000.0);//TODO
                FeatureDataSet ds = new FeatureDataSet();
                source.DataSource.Open();
                source.DataSource.ExecuteIntersectionQuery(envelope, ds);
                source.DataSource.Close();

                FeatureDataTable features = (FeatureDataTable)ds.Tables[0];

                string label = "Trace test:\n";

                foreach (FeatureDataRow row in features)
                {
                    foreach (Object item in row.ItemArray)
                        label += " - " + item;
                    label += "\n";
                }

                setLabel(label);

                //Show map

                //Filters
                FilterGraph graph = project.getFilterGraph(source.getName());
                if (graph != null)
                {
                    foreach (FeatureFilter filter in graph.getFilters())
                    {
                        //aplicar filtro segun el tipo
                        Mogre.DefaultSceneManagerFactory dsmf = new DefaultSceneManagerFactory();
                        Mogre.SceneManager sm = dsmf.CreateInstance("scenemanager");
                        FilterEnv env = new FilterEnv(sm, "env");
                        foreach (MogreGis.Resource resource in project.getResources())
                        {
                            env.getSession().Resources.addResource(resource);
                        }
                        FeatureList list = Feature.DataTableToList(features);
                        filter.process(list, env);
                        //falta devolver la lista y procesarla ***************************************
                    }
                }

                SharpMap.Layers.VectorLayer myLayer = new SharpMap.Layers.VectorLayer(layer.getName());
                myLayer.DataSource = source.DataSource;
                myMap.Layers.Add(myLayer);
            }

            myMap.Size = new Size(picBox.Width, picBox.Height);
            myMap.ZoomToExtents();
            picBox.Image = myMap.GetMap();
            this.map = myMap;
        }

        public static SharpMap.Map InitializeMap(float angle)
        {
            using (var ofn = new System.Windows.Forms.OpenFileDialog())
            {
                ofn.Filter = "All files|*.*";
                ofn.FilterIndex = 0;

                if (ofn.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                {
                    var m = new SharpMap.Map();
                    var l = new SharpMap.Layers.GdiImageLayer(ofn.FileName);
                    m.Layers.Add(l);

                    m.ZoomToExtents();

                    var mat = new System.Drawing.Drawing2D.Matrix();
                    mat.RotateAt(angle, m.WorldToImage(m.Center));
                    m.MapTransform = mat;
                    m.MaximumExtents = m.GetExtents();
                    m.EnforceMaximumExtents = true;
                    return m;
                }
            }
            return null;

        }

        public void TestSymbolSelectionTheming()
        {
            //Create a map
            SharpMap.Map map = new SharpMap.Map(new System.Drawing.Size(720, 360));

            //Create some random sample data
            SharpMap.Data.FeatureDataTable fdt =
                cd.CreatePointFeatureDataTableFromArrays(cd.GetRandomOrdinates(80, -180, 180),
                                                         cd.GetRandomOrdinates(80, -90, 90), null);

            //Add rotation column and fill with random rotation values
            fdt.Columns.Add("Symbol", typeof(System.Byte[]));
            foreach (SharpMap.Data.FeatureDataRow row in fdt.Rows)
                row["Symbol"] = RandomSymbol((int)System.Math.Floor(cd.RandomNumberGenerator.NextDouble() * 360d));

            //Create layer and datasource
            SharpMap.Layers.VectorLayer vl = new SharpMap.Layers.VectorLayer("Points", new SharpMap.Data.Providers.GeometryFeatureProvider(fdt));

            //Create default style
            SharpMap.Styles.VectorStyle defaultStyle = new SharpMap.Styles.VectorStyle();
            defaultStyle.Symbol = new System.Drawing.Bitmap(@"..\..\..\DemoWinForm\Resources\flag.png");
            defaultStyle.SymbolScale = 0.5f;

            //Create theming class and apply to layer
            SymbolFromFeatureDataRowTheming srt = new SymbolFromFeatureDataRowTheming("Symbol", defaultStyle);
            vl.Theme = new SharpMap.Rendering.Thematics.CustomTheme(srt.GetRotatedSymol);

            map.Layers.Add(vl);
            map.ZoomToExtents();
            System.Drawing.Image mapImage = map.GetMap();
            mapImage.Save("SymbolFromFDR.bmp");
        }

        public void TestListPointSymbolizer()
        {
            var fdt = TestData.CreatingData.CreatePointFeatureDataTableFromArrays(
                TestData.CreatingData.GetRandomOrdinates(50, -180, 180), TestData.CreatingData.GetRandomOrdinates(50, -90, 90), null);
            var geometryFeatureProvider = new SharpMap.Data.Providers.GeometryFeatureProvider(fdt);
            var layer = new SharpMap.Layers.VectorLayer("randompoints", geometryFeatureProvider);
            var pps =
                SharpMap.Rendering.Symbolizer.PathPointSymbolizer.CreateSquare(new System.Drawing.Pen(System.Drawing.Color.Red, 2),
                                                                    new System.Drawing.SolidBrush(
                                                                        System.Drawing.Color.DodgerBlue), 20);

            var cps = new SharpMap.Rendering.Symbolizer.CharacterPointSymbolizer
            {
                Halo = 1,
                HaloBrush = new System.Drawing.SolidBrush(System.Drawing.Color.WhiteSmoke),
                Foreground = new System.Drawing.SolidBrush(System.Drawing.Color.Black),
                Font = new System.Drawing.Font("Arial", 12),
                CharacterIndex = 65
            };

            var lps = new SharpMap.Rendering.Symbolizer.ListPointSymbolizer { pps, cps };

            layer.Style.PointSymbolizer = lps;
            var map = new SharpMap.Map(new System.Drawing.Size(720, 360));
            map.Layers.Add(layer);
            map.ZoomToExtents();
            map.GetMap().Save("ListPointSymbolizer1.bmp");
        }

        public void TestCharacterPointSymbolizer()
        {
            var fdt = TestData.CreatingData.CreatePointFeatureDataTableFromArrays(
                TestData.CreatingData.GetRandomOrdinates(50, -180, 180), TestData.CreatingData.GetRandomOrdinates(50, -90, 90), null);
            var geometryFeatureProvider = new SharpMap.Data.Providers.GeometryFeatureProvider(fdt);
            var layer = new SharpMap.Layers.VectorLayer("randompoints", geometryFeatureProvider);
            var cps  = new SharpMap.Rendering.Symbolizer.CharacterPointSymbolizer
                                              {
                                                  Halo = 1,
                                                  HaloBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Wheat),
                                                  //Font = new System.Drawing.Font("Arial", 12),
                                                  CharacterIndex = 0xcc,
                                              };
            layer.Style.PointSymbolizer = cps;
            var map = new SharpMap.Map(new System.Drawing.Size(720, 360));

            map.Layers.Add(layer);
            map.ZoomToExtents();
            map.GetMap().Save("CharacterPointSymbolizer1.bmp");

            cps.Rotation = -30;
            cps.Offset = new System.Drawing.PointF(4, 4);
            map.GetMap().Save("CharacterPointSymbolizer2.bmp");

            cps.Font = new System.Drawing.Font("Arial", 12);
            cps.Text = "ABC";
            cps.Offset = System.Drawing.PointF.Empty;
            cps.Rotation = -90;
            map.GetMap().Save("CharacterPointSymbolizer3.bmp");
        }

        public void TestPathPointSymbolizer()
        {
            var fdt = CreatingData.CreatePointFeatureDataTableFromArrays(
                CreatingData.GetRandomOrdinates(50, -180, 180), CreatingData.GetRandomOrdinates(50, -90, 90), null);
            var geometryFeatureProvider = new SharpMap.Data.Providers.FeatureProvider(fdt);
            var layer = new SharpMap.Layers.VectorLayer("randompoints", geometryFeatureProvider);
            var pps =
                SharpMap.Rendering.Symbolizer.PathPointSymbolizer.CreateSquare(new System.Drawing.Pen(System.Drawing.Color.Red, 2),
                                                                    new System.Drawing.SolidBrush(
                                                                        System.Drawing.Color.DodgerBlue), 20);
            layer.Style.PointSymbolizer = pps;
            var map = new SharpMap.Map(new System.Drawing.Size(720, 360));
            map.Layers.Add(layer);
            map.ZoomToExtents();
            map.GetMap().Save("PathPointSymbolizer1.bmp");

            pps.Rotation = -30;
            map.GetMap().Save("PathPointSymbolizer2.bmp");

            pps.Rotation = 0f;
            pps.Offset = new System.Drawing.PointF(4, 4);
            map.GetMap().Save("PathPointSymbolizer3.bmp");

            var gpTriangle1 = new System.Drawing.Drawing2D.GraphicsPath();
            gpTriangle1.AddPolygon(new [] { new System.Drawing.Point(0, 0), new System.Drawing.Point(5, 10), new System.Drawing.Point(10, 0), new System.Drawing.Point(0, 0), });
            var gpTriangle2 = new System.Drawing.Drawing2D.GraphicsPath();
            gpTriangle2.AddPolygon(new[] { new System.Drawing.Point(0, 0), new System.Drawing.Point(-5, -10), new System.Drawing.Point(-10, 0), new System.Drawing.Point(0, 0), });
            pps = new
                SharpMap.Rendering.Symbolizer.PathPointSymbolizer(new[]
                                                        {
                                                            new SharpMap.Rendering.Symbolizer.PathPointSymbolizer.PathDefinition
                                                                {
                                                                    Path = gpTriangle1,
                                                                    Line =
                                                                        new System.Drawing.Pen(
                                                                        System.Drawing.Color.Red, 2),
                                                                    Fill =
                                                                        new System.Drawing.SolidBrush(
                                                                        System.Drawing.Color.DodgerBlue)
                                                                },
                                                            new SharpMap.Rendering.Symbolizer.PathPointSymbolizer.PathDefinition
                                                                {
                                                                    Path = gpTriangle2,
                                                                    Line =
                                                                        new System.Drawing.Pen(
                                                                        System.Drawing.Color.DodgerBlue, 2),
                                                                    Fill =
                                                                        new System.Drawing.SolidBrush(
                                                                        System.Drawing.Color.Red)
                                                                }

                                                        }){ Rotation = 45 };

            layer.Style.PointSymbolizer = pps;
            map.GetMap().Save("PathPointSymbolizer4.bmp");
            pps.Rotation = 180;
            map.GetMap().Save("PathPointSymbolizer5.bmp");

        }

        public static SharpMap.Map InitializeMap(int angle, string[] filenames)
        {
            var map = new SharpMap.Map();
            for (int i = 0; i < filenames.Length; i++)
                map.Layers.Add(new SharpMap.Layers.GdalRasterLayer(System.IO.Path.GetFileName(filenames[i]), filenames[i]));

            System.Drawing.Drawing2D.Matrix mat = new System.Drawing.Drawing2D.Matrix();
            mat.RotateAt(angle, map.WorldToImage(map.Center));
            map.MapTransform = mat;
            map.ZoomToExtents();
            return map;
        }

        public void TestRealData()
        {
            var fdt = GetRealFeatureDataTable();
            FillRealDataTable(fdt);

            var p = new SharpMap.Data.Providers.FeatureProvider(fdt);


            var m = new SharpMap.Map(new Size(640, 640));
            m.Layers.Add(new TileLayer(
                new OsmTileSource(new OsmRequest(KnownTileServers.Mapnik) /*, 
                                  new FileCache(@"d:\temp\OSM", "png")*/), "OSM"));

            var l = new HeatLayer(p, "Data", 0.001f);
            l.LayerName = "HEAT";
            m.Layers.Add(l);
#if DotSpatialProjections
            l.CoordinateTransformation = new DotSpatial.Projections.CoordinateTransformation
            {
                Source = ProjectionInfo.FromEpsgCode(4326), 
                Target = ProjectionInfo.FromEpsgCode(3857)
            };
#else
            var ctfac = new ProjNet.CoordinateSystems.Transformations.CoordinateTransformationFactory();
            l.CoordinateTransformation =
                ctfac.CreateFromCoordinateSystems(ProjNet.CoordinateSystems.GeographicCoordinateSystem.WGS84,
                                                  ProjNet.CoordinateSystems.ProjectedCoordinateSystem.WebMercator);
#endif
            l.ZoomMin = 0;// 0.01 * m.GetExtents().Width;
            l.ZoomMax = /*0.9 * */m.GetExtents().Width;
            l.OpacityMax = 1;
            l.OpacityMin = 0.3f;

            m.ZoomToBox(l.Envelope);
            for (var i = 0; i < 5; i++)
            {
                using (var img = m.GetMap())
                {
                    img.Save("RealDataHeat" + i + ".png");
                }
                m.Zoom /= 2;
            }
            m.ZoomToExtents();
            using (var img = m.GetMap())
            {
                img.Save("RealDataHeat.png");
            }

        }

        public void TestWarpedLineSymbolizer()
        {
            var p = new SharpMap.Data.Providers.ShapeFile(@"d:\\daten\GeoFabrik\\Aurich\\roads.shp", false);

            var l = new SharpMap.Layers.VectorLayer("roads", p);
            var cls = new SharpMap.Rendering.Symbolizer.CachedLineSymbolizer();
            cls.LineSymbolizeHandlers.Add(new SharpMap.Rendering.Symbolizer.PlainLineSymbolizeHandler { Line = new System.Drawing.Pen(System.Drawing.Color.Gold, 2) });
            cls.LineSymbolizeHandlers.Add(new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander { Pattern = SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.GetGreaterSeries(3, 3), Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1) });
            l.Style.LineSymbolizer = cls;

            var m = new SharpMap.Map(new System.Drawing.Size(720, 540)) {BackColor = System.Drawing.Color.Cornsilk};
            m.Layers.Add(l);

            m.ZoomToExtents();

            var sw = new System.Diagnostics.Stopwatch();

            sw.Start();
            var bmp = m.GetMap();
            sw.Stop();
            System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));
            bmp.Save("AurichRoads1.bmp");

            cls.LineSymbolizeHandlers[1] = new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander
            {
                Pattern = SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.GetTriangleSeries(4, 7),
                Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1),
                Fill = new System.Drawing.SolidBrush(System.Drawing.Color.Firebrick)
            };
            sw.Start();
            bmp = m.GetMap();
            sw.Stop();
            System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));
            bmp.Save("AurichRoads2.bmp");

            //cls.LineSymbolizeHandlers[0] = cls.LineSymbolizeHandlers[1];
            cls.LineSymbolizeHandlers[1] = new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander
                                               {
                                                   Pattern = SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.GetZigZag(4, 4),
                                                   Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1),
                                                   //Fill = new System.Drawing.SolidBrush(System.Drawing.Color.Firebrick)
                                               };
            sw.Start();
            bmp = m.GetMap();
            sw.Stop();
            System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));
            bmp.Save("AurichRoads3.bmp");

        }

        public void TestPlainPolygonSymbolizer()
        {
            var provider = new SharpMap.Data.Providers.ShapeFile(
                "..\\..\\..\\WinFormSamples\\GeoData\\World\\countries.shp", true);
            var l = new SharpMap.Layers.Symbolizer.PolygonalVectorLayer("Countries", provider);
            l.Symbolizer = new ModifiedBasicPolygonSymbolizer
                {
                    Fill = new System.Drawing.Drawing2D.HatchBrush(
                            System.Drawing.Drawing2D.HatchStyle.WideDownwardDiagonal, 
                            System.Drawing.Color.Red /*,
                            System.Drawing.Color.LightPink*/),
                    UseClipping = false,
                    //Outline = System.Drawing.Pens.AliceBlue
                };

            var m = new SharpMap.Map(new System.Drawing.Size(1440, 1080)) { BackColor = System.Drawing.Color.Cornsilk };
            m.Layers.Add(l);

            m.ZoomToExtents();

            var sw = new System.Diagnostics.Stopwatch();
            var img = m.GetMap();
            
            sw.Start();
            img = m.GetMap();
            img.Save("PolygonSymbolizer-1.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
            sw.Stop();
            System.Console.WriteLine(string.Format("Rendering new method:{0}ms", sw.ElapsedMilliseconds));

            l.Symbolizer = new SharpMap.Rendering.Symbolizer.BasicPolygonSymbolizer()
            {
                Fill = new System.Drawing.Drawing2D.HatchBrush(
                        System.Drawing.Drawing2D.HatchStyle.WideDownwardDiagonal,
                        System.Drawing.Color.Red/*,
                        System.Drawing.Color.LightPink*/),
                UseClipping = false,
                //Outline = System.Drawing.Pens.AliceBlue
            };

            sw.Reset(); sw.Start();
            img = m.GetMap();
            img.Save("PolygonSymbolizer-2.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
            sw.Stop();
            System.Console.WriteLine(string.Format("Rendering new method:{0}ms", sw.ElapsedMilliseconds));
        
        }

        public void MultiLineCenterAlignedTest()
        {
            using (var m = new SharpMap.Map(new Size(600, 400)))
            {
                m.BackColor = Color.SeaShell;
                //_featureDataTable.Clear();
                var gfp = new GeometryFeatureProvider(_featureDataTable);
                var vl = new VectorLayer("VL", gfp);
                var ll = new LabelLayer("MultiLineCenterAligned") {DataSource = gfp};
                ll.Theme = CreateTheme();
                ll.LabelColumn = "LABEL";
                m.Layers.Add(vl);
                m.Layers.Add(ll);

                m.ZoomToExtents();
                using (var mapImage = m.GetMap())
                    mapImage.Save("MultiLineCenterAligned.png", ImageFormat.Png);
            }
        }

        public void TestPerformanceVectorLayer()
        {
            NUnit.Framework.Assert.IsTrue(System.IO.File.Exists(GetTestDataFilePath("SPATIAL_F_SKARVMUFF.shp")),
                                          "Specified shapefile is not present!");

            var map = new SharpMap.Map(new System.Drawing.Size(1024, 768));

            var shp = new SharpMap.Data.Providers.ShapeFile(GetTestDataFilePath("SPATIAL_F_SKARVMUFF.shp"));
            var lyr = new SharpMap.Layers.VectorLayer("Roads", shp);

            map.Layers.Add(lyr);
            map.ZoomToExtents();

            RepeatedRendering(map, shp.GetFeatureCount(), NumberOfRenderCycles, out _msVector);

            var res = map.GetMap();
            var path = System.IO.Path.ChangeExtension(GetTestDataFilePath("SPATIAL_F_SKARVMUFF.shp"), ".vector.png");
            res.Save(path, System.Drawing.Imaging.ImageFormat.Png);
            System.Console.WriteLine("\nResult saved at file://" + path.Replace('\\', '/'));
        }

        public void TestCachedLineSymbolizerInTheme()
        {
            var p = new SharpMap.Data.Providers.ShapeFile(@"d:\\daten\GeoFabrik\\Aurich\\roads.shp", false);

            var l = new SharpMap.Layers.VectorLayer("roads", p);
            var theme = new ClsTheme(l.Style);
            l.Theme = theme;

            var m = new SharpMap.Map(new System.Drawing.Size(720, 540)) { BackColor = System.Drawing.Color.Cornsilk };
            m.Layers.Add(l);

            m.ZoomToExtents();

            var sw = new System.Diagnostics.Stopwatch();

            sw.Start();
            var bmp = m.GetMap();
            sw.Stop();
            System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));
            bmp.Save("AurichRoads1Theme.bmp");
        }

        public void TestEnsureVisible()
        {
            //Create a map
            SharpMap.Map map = new SharpMap.Map(new System.Drawing.Size(720,360));
            
            //Create some random sample data
            SharpMap.Data.FeatureDataTable fdt =
                cd.CreatePointFeatureDataTableFromArrays(cd.GetRandomOrdinates(80, -180, 180),
                                                         cd.GetRandomOrdinates(80, -90, 90), null);

            //Create layer and datasource
            SharpMap.Layers.VectorLayer vl = new SharpMap.Layers.VectorLayer("Points", new SharpMap.Data.Providers.FeatureProvider(fdt));
            
            //Create default style
            SharpMap.Styles.VectorStyle defaultStyle = new SharpMap.Styles.VectorStyle();
            defaultStyle.Symbol = new System.Drawing.Bitmap(@"..\..\..\DemoWinForm\Resources\flag.png");
            defaultStyle.SymbolScale = 0.5f;

            //Create theming class and apply to layer
            var srt = new SymbolRotationTheming("Rotation", defaultStyle);
            vl.Theme = new SharpMap.Rendering.Thematics.CustomTheme(srt.GetRotatedSymol);


            map.Layers.Add(vl);
            map.ZoomToExtents();
            map.Zoom = 60; //2*30
            map.Center = new GeoAPI.Geometries.Coordinate(0,0);

            System.Console.WriteLine(map.Center);
            EnsureVisible(map, new GeoAPI.Geometries.Coordinate(-30, 0));
            System.Console.WriteLine(map.Center);
            System.Console.WriteLine();
            EnsureVisible(map, new GeoAPI.Geometries.Coordinate(15, 20));
            System.Console.WriteLine(map.Center);
            System.Console.WriteLine();
            EnsureVisible(map, new GeoAPI.Geometries.Coordinate(15, -20));
            System.Console.WriteLine(map.Center);
        }