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source_code_serviceseditionsample_startendlinestyle_cs_100817.zip

Source Code ServicesEditionSample StartEndLineStyle CS 100817.zip

CustomStartEndLineStyle.cs

 using System;  
 using System.Collections.Generic;  
 using System.Collections.ObjectModel;  
 using System.Linq;  
 using System.Text;  
 using ThinkGeo.MapSuite.Core;  
 
 namespace StartEndLineStyle  
 {  
     class CustomStartEndLineStyle : LineStyle  
     {  
         private PointStyle startPointStyle;  
         private PointStyle endPointStyle;  
         private LineStyle lineStyle;  
 
         public CustomStartEndLineStyle()  
             : this(new PointStyle(PointSymbolType.Square, new GeoSolidBrush(GeoColor.StandardColors.Green), 12),  
                new PointStyle(PointSymbolType.Circle, new GeoSolidBrush(GeoColor.StandardColors.Red), 12),  
                new LineStyle(new GeoPen(GeoColor.FromArgb(150,GeoColor.StandardColors.BlueViolet),6)))  
         { }  
 
         public CustomStartEndLineStyle(PointStyle StartPointStyle, PointStyle EndPointStyle, LineStyle LineStyle)  
         {  
             this.startPointStyle = StartPointStyle;  
             this.endPointStyle = EndPointStyle;  
             this.lineStyle = LineStyle;  
         }  
 
 
         protected override void DrawCore(IEnumerable<Feature> features, GeoCanvas canvas, System.Collections.ObjectModel.Collection<SimpleCandidate> labelsInThisLayer, System.Collections.ObjectModel.Collection<SimpleCandidate> labelsInAllLayers)  
         {  
             Collection<BaseShape> startPointShapes = new Collection<BaseShape>();  
             Collection<BaseShape> endPointShapes = new Collection<BaseShape>();  
             Collection<BaseShape> multiLineShapes = new Collection<BaseShape>();  
 
             //Loops thru the features to display the first and end point of each LineShape of the MultilineShape.  
             foreach (Feature feature in features)  
             {  
                 MultilineShape multilineShape = (MultilineShape)feature.GetShape();  
                 multiLineShapes.Add(multilineShape);  
                 for (int i = 0; i <= multilineShape.Lines.Count - 1; i++)  
                 {  
                     LineShape lineShape = multilineShape.Lines[i];  
                     startPointShapes.Add(new PointShape(lineShape.Vertices[0]));  
                     endPointShapes.Add(new PointShape(lineShape.Vertices[lineShape.Vertices.Count|- 1]));  
                 }  
             }  
 
             lineStyle.Draw(multiLineShapes, canvas, labelsInThisLayer, labelsInAllLayers);  
             startPointStyle.Draw(startPointShapes, canvas, labelsInThisLayer, labelsInAllLayers);  
             endPointStyle.Draw(endPointShapes, canvas, labelsInThisLayer, labelsInAllLayers);  
         }  
     }  
 }  
 

Program.cs

 using System;  
 using System.Collections.Generic;  
 using System.Linq;  
 using System.Windows.Forms;  
 
 namespace StartEndLineStyle  
 {  
     static class Program  
     {  
         /// <summary>  
         /// The main entry point for the application.  
         /// </summary>  
         [STAThread]  
         static void Main()  
         {  
             Application.EnableVisualStyles();  
             Application.SetCompatibleTextRenderingDefault(false);  
             Application.Run(new TestForm());  
         }  
     }  
 }  
 

TestForm.cs

 using System;  
 using System.Collections.ObjectModel;  
 using System.Drawing;  
 using System.Windows.Forms;  
 using ThinkGeo.MapSuite.Core;  
 
 namespace StartEndLineStyle  
 {  
     public partial class TestForm : Form  
     {  
         private MapEngine mapEngine = new MapEngine();  
         private Bitmap bitmap = null;  
 
        public TestForm()  
         {  
             InitializeComponent();  
         }  
 
         private void TestForm_Load(object sender, EventArgs e)  
         {  
             //Set the extent and the background color.  
             mapEngine.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(-97.7347,30.2883,-97.7274,30.2841), Map.Width, Map.Height);  
             mapEngine.BackgroundFillBrush = new GeoSolidBrush(GeoColor.StandardColors.LightGoldenrodYellow);  
 
             //Displays the Austin street shapefile.  
             ShapeFileFeatureLayer layer1 = new ShapeFileFeatureLayer(@"../../data/Austinstreets.shp");  
             layer1.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = LineStyles.LocalRoad2;  
             layer1.ZoomLevelSet.ZoomLevel01.DefaultTextStyle = TextStyles.LocalRoad2("NAME");  
             layer1.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
 
             //Gets the feature to display with the CustomStartEndLineStyle.  
             layer1.Open();  
             Feature feature = layer1.FeatureSource.GetFeatureById("7838", ReturningColumnsType.AllColumns);  
             layer1.Close();  
 
             InMemoryFeatureLayer inMemoryFeatureLayer = new InMemoryFeatureLayer();  
             //Adds the CustomStartEndLineStyle to the CustomStyles of the InMemoryFeatureLayer.  
             inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.CustomStyles.Add(new CustomStartEndLineStyle());  
             inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
             inMemoryFeatureLayer.InternalFeatures.Add(feature);  
 
             mapEngine.StaticLayers.Add(layer1);  
 
             mapEngine.DynamicLayers.Add(inMemoryFeatureLayer);  
 
             DrawImage();  
         }  
 
 
         private void DrawImage()  
         {  
             if (bitmap != null) { bitmap.Dispose(); }  
             bitmap = new Bitmap(Map.Width, Map.Height);  
             mapEngine.OpenAllLayers();  
             mapEngine.DrawStaticLayers(bitmap, GeographyUnit.DecimalDegree);  
             mapEngine.DrawDynamicLayers(bitmap, GeographyUnit.DecimalDegree);  
             mapEngine.CloseAllLayers();  
 
             Map.Image = bitmap;  
         }  
 
         private void ToolBar_ButtonClick(object sender, ToolBarButtonClickEventArgs e)  
         {  
             switch (e.Button.Tag.ToString())  
             {  
                 case "Zoom In":  
                     mapEngine.CurrentExtent.ScaleDown(50);  
                     break;  
                 case "Zoom Out":  
                     mapEngine.CurrentExtent.ScaleUp(50);  
                     break;  
                 case "Full Extent":  
                     mapEngine.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(-180.0, 83.0, 180.0, -90.0), Map.Width, Map.Height);  
                     break;  
                 case "Pan Left":  
                     mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Left, 20);  
                     break;  
                 case "Pan Right":  
                     mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Right, 20);  
                     break;  
                 case "Pan Up":  
                     mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Up, 20);  
                     break;  
                 case "Pan Down":  
                     mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Down, 20);  
                     break;  
                 default:  
                     break;  
             }  
             DrawImage();  
         }  
 
         private void btnClose_Click(object sender, EventArgs e)  
         {  
             this.Close();  
         }  
 
         private void Map_MouseMove(object sender, MouseEventArgs e)  
         {  
             //Displays the X and Y in screen coordinates.  
             statusStrip1.Items["toolStripStatusLabelScreen"].Text = "X:" + e.X + " Y:" + e.Y;  
 
             //Gets the PointShape in world coordinates from screen coordinates.  
             PointShape pointShape = ExtentHelper.ToWorldCoordinate(mapEngine.CurrentExtent, new ScreenPointF(e.X, e.Y), Map.Width, Map.Height);  
 
             //Displays world coordinates.  
             statusStrip1.Items["toolStripStatusLabelWorld"].Text = "(world) X:" + Math.Round(pointShape.X, 4) + " Y:" + Math.Round(pointShape.Y, 4);  
         }  
     }  
 }  
 
source_code_serviceseditionsample_startendlinestyle_cs_100817.zip.txt · Last modified: 2015/09/08 08:03 by admin