ThinkGeo Cloud
ThinkGeo UI Controls
ThinkGeo Open Source
Help and Support
External Resources
ThinkGeo Cloud
ThinkGeo UI Controls
ThinkGeo Open Source
Help and Support
External Resources
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()); } } }
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); } } }