====== Source Code ServicesEditionSample RasterLayerToBitmap CS 100903.zip ======


====Program.cs====

<code csharp> using System;  
 using System.Collections.Generic;  
 using System.Linq;  
 using System.Windows.Forms;  
  
 namespace RasterLayerToBitmap  
 {  
     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.Collections.ObjectModel;  
 using System.Drawing;  
 using System.Windows.Forms;  
 using System.Drawing.Imaging;  
 using System.IO;  
 using ThinkGeo.MapSuite.Core;  
  
 namespace RasterLayerToBitmap  
 {  
     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(-190,100,190,-100), Map.Width, Map.Height);  
             mapEngine.BackgroundFillBrush = new GeoSolidBrush(GeoColor.GeographicColors.ShallowOcean);  
  
             //Adds the Mr Sid to the map  
             MrSidRasterLayer rasterLayer = new MrSidRasterLayer(@"../../data/World.sid");  
  
             mapEngine.StaticLayers.Add(rasterLayer);  
  
             DrawImage();  
         }  
  
         private void btnToBitmap_Click(object sender, EventArgs e)  
         {  
             //Calculates the size of the image for the raster layer at the current extent  
             //This means that if you zoom out, you will get a smaller image and if you zoom in, you will get a larger image.  
             RasterLayer rasterLayer = (RasterLayer)mapEngine.StaticLayers[0];  
             rasterLayer.Open();  
             float imageWidth = ExtentHelper.GetScreenDistanceBetweenTwoWorldPoints(mapEngine.CurrentExtent, rasterLayer.GetBoundingBox().UpperLeftPoint,  
                   rasterLayer.GetBoundingBox().UpperRightPoint, Map.Width, Map.Height);  
  
             float imageHeight = ExtentHelper.GetScreenDistanceBetweenTwoWorldPoints(mapEngine.CurrentExtent, rasterLayer.GetBoundingBox().UpperLeftPoint,  
                         rasterLayer.GetBoundingBox().LowerLeftPoint, Map.Width, Map.Height);  
  
             //Gets the GeoImage of the raster layer at the calculated size.  
             GeoImage geoImage = rasterLayer.ImageSource.GetImage(rasterLayer.GetBoundingBox(),(int)(imageWidth), (int) (imageHeight));  
  
             //Gets the bitmap from the GeoImage and saves it.  
             Bitmap myBitmap = null;  
             lock (geoImage)  
             {  
                 Stream imageStream = geoImage.GetImageStream(new GdiPlusGeoCanvas());  
                 myBitmap = new Bitmap(imageStream);  
             }  
             myBitmap.Save(@"../../data/world.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/world.bpw"))  
             {  
                 //Calculates the pixel size in the x-direction in map unit.  
                 double PixelSizeX = rasterLayer.GetBoundingBox().Width / myBitmap.Width;  
                 //Calculates the pixel size in the y-direction in map unit.  
                 double PixelSizeY = rasterLayer.GetBoundingBox().Height / myBitmap.Height;  
                 //Calculates the x-coordinate of the center of the upper left pixel.  
                 double XCoord = rasterLayer.GetBoundingBox().UpperLeftPoint.X + (PixelSizeX / 2);  
                 //Calculates the y-coordinate of the center of the upper left pixel.  
                 double YCoord = rasterLayer.GetBoundingBox().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());  
             }  
  
             rasterLayer.Close();  
         }  
  
  
         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);  
         }  
  
  
     }  
 }  
 </code>