====== Source Code ServicesEditionSample DynamicSegmentation CS 090807.zip ======


====Program.cs====

<code csharp> using System;  
 using System.Collections.Generic;  
 using System.Linq;  
 using System.Windows.Forms;  
  
 namespace DynamicSegmentation  
 {  
     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());  
         }  
     }  
 }  
 </code>



====TestForm.cs====

<code csharp> using System;  
 using System.IO;  
 using System.Drawing;  
 using System.Windows.Forms;  
 using ThinkGeo.MapSuite.Core;  
 using System.Collections.ObjectModel;  
  
 namespace DynamicSegmentation  
 {  
     public partial class TestForm : Form  
     {  
         private MapEngine mapEngine = new MapEngine();  
         private Bitmap bitmap = null;  
         InMemoryFeatureLayer segmentInMemoryFeatureLayer = null;  
  
         public TestForm()  
         {  
             InitializeComponent();  
         }  
  
         private void TestForm_Load(object sender, EventArgs e)  
         {  
             // Set the full extent and the background color.  
             mapEngine.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(0, 10, 10, 0), Map.Width, Map.Height);  
             mapEngine.BackgroundFillBrush = new GeoSolidBrush(GeoColor.StandardColors.White);  
  
             // Reads WKT from files and creates MultiLineShape from WKT (Well Known Text).  
             StreamReader SR = File.OpenText(@"..\..\Data\MultiLineShape_WKT.txt");  
             string S;  
             S = SR.ReadLine();  
             MultilineShape multiLineShape = new MultilineShape(S);  
  
             //Add the dynamic layer with the full line as MultiLineShape  to the MapEngine.  
             InMemoryFeatureLayer inMemoryFeatureLayer = new InMemoryFeatureLayer();  
             Feature feature = new Feature(multiLineShape);  
             inMemoryFeatureLayer.InternalFeatures.Add("fullLine", feature);  
             inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = LineStyles.Interstate3;  
             inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
             mapEngine.DynamicLayers.Add(inMemoryFeatureLayer);  
  
             //Shows the total length of the full line.  
             lblTotalLength.Text = "The total length of the line is "  + Math.Round(multiLineShape.GetLength(GeographyUnit.Meter,DistanceUnit.Meter),2) + " meters";  
  
  
             //Add the dynamic layer for the line segment that will be used for the result of the dynamic segmentation.  
             segmentInMemoryFeatureLayer = new InMemoryFeatureLayer();  
             mapEngine.DynamicLayers.Add("segmentLayer",segmentInMemoryFeatureLayer);  
  
             //Add the dynamic layer for the start vertex of the full line.  
             PointShape startPointShape = new PointShape(multiLineShape.Lines[0].Vertices[0]);  
             InMemoryFeatureLayer vertexInMemoryFeatureLayer = new InMemoryFeatureLayer();  
             Feature startFeature = new Feature(startPointShape);  
             vertexInMemoryFeatureLayer.InternalFeatures.Add("vertexFeatures", startFeature);  
             vertexInMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyles.CreateSimpleTriangleStyle(GeoColor.SimpleColors.Red, 10);  
             vertexInMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
             mapEngine.DynamicLayers.Add(vertexInMemoryFeatureLayer);  
  
             DrawImage();  
         }  
  
         private void btnFind_Click(object sender, EventArgs e)  
         {  
             //Get the line segment from start distance and length and display the result in dynamic layer.  
             double startDistance = Convert.ToDouble(txtBoxDistanceFromStart.Text);  
             double Distance = Convert.ToDouble(txtBoxSegmentLength.Text);  
             InMemoryFeatureLayer inMemoryFeatureLayer = (InMemoryFeatureLayer)mapEngine.DynamicLayers[0];  
             MultilineShape multiLineShape = (MultilineShape)inMemoryFeatureLayer.InternalFeatures[0].GetShape();  
  
             //Call GetLineOnLine passing the starting vertex, the start distance, the distance length, the map unit and the returning unit.  
             MultilineShape segmentMultiLineShape = (MultilineShape)multiLineShape.GetLineOnALine(StartingPoint.FirstPoint, startDistance, Distance, GeographyUnit.Meter, DistanceUnit.Meter);  
  
             //Make sure to clear any previous result.  
             segmentInMemoryFeatureLayer.InternalFeatures.Clear();  
  
             //Get the feature for GetLineOnLine method to put in the InMemoryFeatureLayer for displaying in yellow.  
             Feature segmentFeature = new Feature(segmentMultiLineShape);  
             segmentInMemoryFeatureLayer.InternalFeatures.Add("segmentFeature", segmentFeature);  
             segmentInMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = LineStyles.CreateSimpleLineStyle(GeoColor.SimpleColors.Yellow, 4, true);  
             segmentInMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
  
             DrawImage();  
         }  
  
  
         private void DrawImage()  
         {  
             if (bitmap != null) { bitmap.Dispose(); }  
             bitmap = new Bitmap(Map.Width, Map.Height);  
             mapEngine.OpenAllLayers();  
             mapEngine.DrawDynamicLayers(bitmap, GeographyUnit.Meter);  
             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();  
         }  
  
  
     }  
 }  
 </code>