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source_code_serviceseditionsample_currentextenttobitmap_cs_100827.zip

Source Code ServicesEditionSample CurrentExtentToBitmap CS 100827.zip

Program.cs

 using System;  
 using System.Collections.Generic;  
 using System.Linq;  
 using System.Windows.Forms;  
 
 namespace CurrentExtentToBitmap  
 {  
     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 System.Drawing.Imaging;  
 using System.IO;  
 using ThinkGeo.MapSuite.Core;  
 
 namespace CurrentExtentToBitmap  
 {  
     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(-126.51,50.92,-66.08,22.48), Map.Width, Map.Height);  
             mapEngine.BackgroundFillBrush = new GeoSolidBrush(GeoColor.GeographicColors.ShallowOcean);  
 
             //Displays the World Map Kit as a background.  
             ThinkGeo.MapSuite.Core.WorldMapKitLayer worldMapKitLayer = new ThinkGeo.MapSuite.Core.WorldMapKitLayer();  
             mapEngine.StaticLayers.Add(worldMapKitLayer);  
 
             //Loads and displays the point based shapefile for the main cities.  
             ShapeFileFeatureLayer Layer1 = new ShapeFileFeatureLayer(@"../../Data/MajorCities.shp");  
             Layer1.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyles.City1;  
             Layer1.ZoomLevelSet.ZoomLevel01.DefaultTextStyle = TextStyles.CreateMaskTextStyle("AREANAME", new GeoFont("Arial", 10), new GeoSolidBrush(GeoColor.StandardColors.Black),  
                                                                new AreaStyle(new GeoPen(GeoColor.StandardColors.Transparent), new GeoSolidBrush(GeoColor.StandardColors.LightGoldenrodYellow)), 8, 0);  
             Layer1.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
 
             mapEngine.StaticLayers.Add(Layer1);  
 
             DrawImage();  
         }  
 
         private void btnToBitmap_Click(object sender, EventArgs e)  
         {  
             //Saves the bitmap for the current extent of the map.  
             bitmap.Save(@"../../data/mymap.bmp");  
 
             //Creates the world file so that the bitmap is georeferenced according to the standard  
             // http://en.wikipedia.org/wiki/World_file  
             //Make sure the world file has the same name as the bitmap with the bpw extention so that it can be  
             //read correctly by Map Suite controls or other mapping controls.  
             using (StreamWriter worldFile = new StreamWriter(@"../../data/mymap.bpw"))  
             {  
                 //Calculates the pixel size in the x-direction in map unit.  
                 double PixelSizeX = mapEngine.CurrentExtent.Width / Map.Width;  
                 //Calculates the pixel size in the y-direction in map unit.  
                 double PixelSizeY = mapEngine.CurrentExtent.Height / Map.Height;  
                 //Calculates the x-coordinate of the center of the upper left pixel.  
                 double XCoord = mapEngine.CurrentExtent.UpperLeftPoint.X + (PixelSizeX / 2);  
                 //Calculates the y-coordinate of the center of the upper left pixel.  
                 double YCoord = mapEngine.CurrentExtent.UpperLeftPoint.Y - (PixelSizeY / 2);  
 
                 //Writes those parameters to the world file.  
                 worldFile.WriteLine(PixelSizeX.ToString());  
                 worldFile.WriteLine("0");  
                 worldFile.WriteLine("0");  
                 worldFile.WriteLine(PixelSizeY.ToString());  
                 worldFile.WriteLine(XCoord.ToString());  
                 worldFile.WriteLine(YCoord.ToString());  
                 }  
         }  
 
 
         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_currentextenttobitmap_cs_100827.zip.txt · Last modified: 2015/09/08 05:19 by admin