using System;  
 using System.Collections.Generic;  
 using System.Linq;  
 using System.Windows.Forms;  
 
 namespace EarthQuakesHeatMap  
 {  
     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());  
         }  
     }  
 }  
 

 using System;  
 using System.Windows.Forms;  
 using ThinkGeo.MapSuite.Core;  
 using ThinkGeo.MapSuite.DesktopEdition;  
 
 namespace  EarthQuakesHeatMap  
 {  
     public partial class TestForm : Form  
     {  
         public TestForm()  
         {  
             InitializeComponent();  
         }  
 
         private void TestForm_Load(object sender, EventArgs e)  
         {  
             winformsMap1.MapUnit = GeographyUnit.DecimalDegree;  
             winformsMap1.CurrentExtent = new RectangleShape(-125,47,-67,25);  
             winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.FromArgb(255, 198, 255, 255));  
 
             //Displays the World Map Kit as a background.  
             WorldMapKitWmsDesktopOverlay worldMapKitDesktopOverlay = new WorldMapKitWmsDesktopOverlay();  
             winformsMap1.Overlays.Add(worldMapKitDesktopOverlay);  
 
             //Point based ShapeFileFeatureSource on earth quakes used for the HeatOverlay.  
             ShapeFileFeatureSource featureSource = new ShapeFileFeatureSource(@"..\..\Data\quksigx020.shp");  
             //Creates the HeatOverlay with the point based ShapeFileFeatureSource for earthquakes.  
             HeatLayer heatLayer = new HeatLayer(featureSource);  
             //Creates the HeatStyle to set the properties determining the display of the heat map with earth quake data.  
             //Notice that each point is treated with an intensity depending on the value of the column "other_magn1".  
             //So, in addition to the density of points location, the value for each point is also going to be counted into account  
             //for the coloring of the map.  
             HeatStyle heatStyle = new HeatStyle();  
             heatStyle.IntensityColumnName = "other_mag1";  
             heatStyle.IntensityRangeStart = 0;  
             heatStyle.IntensityRangeEnd = 12;  
             //Sets the size of each point 100 kilometers of diameter.  
             heatStyle.Alpha = 180;  
             heatStyle.PointRadius = 60;  
             heatStyle.PointRadiusUnit = DistanceUnit.Kilometer;  
 
             heatLayer.HeatStyle = heatStyle;  
 
             LayerOverlay heatMapOverlay = new LayerOverlay();  
             heatMapOverlay.Layers.Add(heatLayer);  
 
             winformsMap1.Overlays.Add("HeatOverlay", heatMapOverlay);  
 
             winformsMap1.Refresh();  
         }  
 
 
         private void btnClose_Click(object sender, EventArgs e)  
         {  
             this.Close();  
         }  
 
 
     }  
 }