using System;  
 using System.Collections.Generic;  
 using System.Configuration;  
 using System.Data;  
 using System.Linq;  
 using System.Windows;  
 
 namespace SelectAndDragFeature  
 {  
     /// <summary>  
     /// Interaction logic for App.xaml  
     /// </summary>  
     public partial class App : Application  
     {  
     }  
 }  
 

using System;  
 using System.Collections.Generic;  
 using System.Collections.ObjectModel;  
 using System.Windows;  
 using ThinkGeo.MapSuite.Core;  
 using ThinkGeo.MapSuite.WpfDesktopEdition;  
 
 namespace SelectAndDragFeature  
 {  
     /// <summary>  
     /// Interaction logic for TestWindow.xaml  
     /// </summary>  
     public partial class TestWindow : Window  
     {  
         public TestWindow()  
         {  
             InitializeComponent();  
         }  
 
         private void Window_Loaded(object sender, RoutedEventArgs e)  
         {  
             wpfMap1.MapUnit = GeographyUnit.DecimalDegree;  
             wpfMap1.CurrentExtent = new RectangleShape(-40, 20, 40, -20);  
 
             WorldMapKitWmsWpfOverlay worldMapKitOverlay = new WorldMapKitWmsWpfOverlay();  
             wpfMap1.Overlays.Add(worldMapKitOverlay);  
 
             PolygonShape polygon1 = new PolygonShape("Polygon((-20 10, -10 10, -10 0, -20 0, -20 10))");  
             PolygonShape polygon2 = new PolygonShape("Polygon((10 10, 20 10, 20 0, 10 0, 10 10))");  
 
             wpfMap1.TrackOverlay.TrackShapeLayer.InternalFeatures.Add(new Feature(polygon1) { Id = "polygon1" });  
             wpfMap1.TrackOverlay.TrackShapeLayer.InternalFeatures.Add(new Feature(polygon2) { Id = "polygon2" });  
             wpfMap1.TrackOverlay.TrackShapeLayer.InternalFeatures.Add(new Feature(getLineshape(polygon1, polygon2)) { Id = "lineshape" });  
             wpfMap1.TrackOverlay.TrackShapeLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = new MyLineStyle(new GeoPen(GeoColor.SimpleColors.Blue), new GeoPen(), new GeoPen());  
 
             wpfMap1.EditOverlay.EditShapesLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = new MyLineStyle(new GeoPen(GeoColor.SimpleColors.Blue), new GeoPen(), new GeoPen());  
             wpfMap1.EditOverlay.FeatureDragged += new System.EventHandler<FeatureDraggedEditInteractiveOverlayEventArgs>(EditOverlay_FeatureDragged);  
 
             wpfMap1.Refresh();  
         }  
 
 
         void EditOverlay_FeatureDragged(object sender, FeatureDraggedEditInteractiveOverlayEventArgs e)  
         {  
             wpfMap1.EditOverlay.EditShapesLayer.InternalFeatures.Remove("lineshape");  
             wpfMap1.EditOverlay.EditShapesLayer.InternalFeatures.Add("lineshape", new Feature(getLineshape((wpfMap1.EditOverlay.EditShapesLayer.InternalFeatures[0].GetShape() as PolygonShape), (wpfMap1.EditOverlay.EditShapesLayer.InternalFeatures[1].GetShape() as PolygonShape))) { Id = "lineshape" });  
         }  
 
 
         private LineShape getLineshape(PolygonShape polygon1, PolygonShape polygon2)  
         {  
             LineShape lineToReturn = new LineShape();  
             RectangleShape polygon1BoundingBox = polygon1.GetBoundingBox();  
             RectangleShape polygon2BoundingBox = polygon2.GetBoundingBox();  
 
             Vertex vertex1 = new Vertex(polygon1BoundingBox.LowerRightPoint.X, (polygon1BoundingBox.UpperRightPoint.Y + polygon1BoundingBox.LowerRightPoint.Y) / 2);  
             Vertex vertex2 = new Vertex(polygon2BoundingBox.UpperLeftPoint.X, (polygon2BoundingBox.UpperLeftPoint.Y + polygon2BoundingBox.LowerLeftPoint.Y) / 2);  
 
             lineToReturn.Vertices.Add(vertex1);  
             lineToReturn.Vertices.Add(vertex2);  
 
             return lineToReturn;  
         }  
 
         private void BtnEditMode_Click(object sender, RoutedEventArgs e)  
         {  
             wpfMap1.TrackOverlay.TrackMode = TrackMode.None;  
             foreach (Feature feature in wpfMap1.TrackOverlay.TrackShapeLayer.InternalFeatures)  
             {  
                 wpfMap1.EditOverlay.EditShapesLayer.InternalFeatures.Add(feature.Id, feature);  
             }  
 
             wpfMap1.TrackOverlay.TrackShapeLayer.InternalFeatures.Clear();  
             wpfMap1.EditOverlay.CalculateAllControlPoints();  
             wpfMap1.Refresh(new Overlay[] { wpfMap1.EditOverlay, wpfMap1.TrackOverlay });  
         }  
 
         private void BtnFinish_Click(object sender, RoutedEventArgs e)  
         {  
             foreach (Feature feature in wpfMap1.EditOverlay.EditShapesLayer.InternalFeatures)  
             { wpfMap1.TrackOverlay.TrackShapeLayer.InternalFeatures.Add(feature.Id, feature); }  
 
             wpfMap1.EditOverlay.EditShapesLayer.InternalFeatures.Clear();  
             wpfMap1.Refresh(new Overlay[] { wpfMap1.EditOverlay, wpfMap1.TrackOverlay });  
         }  
 
         class MyLineStyle : LineStyle  
         {  
 
             public MyLineStyle(GeoPen outerPen, GeoPen innerPen, GeoPen centerPen)  
                 : base(outerPen, innerPen, centerPen)  
             { }  
 
             protected override void DrawCore(IEnumerable<Feature> features, GeoCanvas canvas, Collection<SimpleCandidate> labelsInThisLayer, Collection<SimpleCandidate> labelsInAllLayers)  
             {  
                 foreach (Feature feature in features)  
                 {  
                     LineShape line = (LineShape)feature.GetShape();  
 
                     double X1 = line.Vertices[0].X;  
                     double Y1 = line.Vertices[0].Y;  
                     double X2 = line.Vertices[1].X;  
                     double Y2 = line.Vertices[1].Y;  
 
                     double angle = Math.Atan((Y2 - Y1) / (X2 - X1));  
                     double openingAngle = Math.PI / 8;  
                     double radius = 2;  
 
                     canvas.DrawLine(feature, OuterPen, DrawingLevel.LevelOne);  
 
                     LineShape oLineShape = new LineShape();  
                     oLineShape.Vertices.Add(new Vertex(X2 + radius * Math.Cos(Math.PI + angle - openingAngle), Y2 + radius * Math.Sin(Math.PI + angle - openingAngle)));  
                     oLineShape.Vertices.Add(new Vertex(X2, Y2));  
                     oLineShape.Vertices.Add(new Vertex(X2 + radius * Math.Cos(Math.PI + angle + openingAngle), Y2 + radius * Math.Sin(Math.PI + angle + openingAngle)));  
                     canvas.DrawLine(oLineShape, OuterPen, DrawingLevel.LevelOne);  
                 }  
             }  
         }  
     }  
 }