using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
namespace RasterLayerWithRectangleShape
{
    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 System.Collections.ObjectModel;
using ThinkGeo.MapSuite.Core;
using ThinkGeo.MapSuite.DesktopEdition;
 
namespace  RasterLayerWithRectangleShape
{
    public partial class TestForm : Form
    {
        public TestForm()
        {
            InitializeComponent();
        }
        private void TestForm_Load(object sender, EventArgs e)
        {
            winformsMap1.MapUnit = GeographyUnit.DecimalDegree;
            winformsMap1.CurrentExtent = new RectangleShape(-180,90,180,-90);
            winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.FromArgb(255, 198, 255, 255));
            ShapeFileFeatureLayer worldLayer = new ShapeFileFeatureLayer(@"..\..\Data\Countries02.shp");
            worldLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.StandardColors.Transparent, GeoColor.StandardColors.DarkGreen, 1);
            worldLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            LayerOverlay layerOverlay = new LayerOverlay();
            layerOverlay.Layers.Add(worldLayer);
 
            //Displays the RectangleShape used for the bounding box of the Image Layer in world coordinates.
            //-180: mininum longitude
            //90: maximum latitude
            //180: maximum longitude
            //-90: minimum latitude
            InMemoryFeatureLayer inMemoryFeatureLayer = new InMemoryFeatureLayer();
            inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.StandardColors.Transparent, GeoColor.StandardColors.Red, 4);
            inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            RectangleShape rectangleShape = new RectangleShape(-180,90,180,-90);
            inMemoryFeatureLayer.InternalFeatures.Add(new Feature(rectangleShape));
            LayerOverlay dynamicOverlay = new LayerOverlay();
            dynamicOverlay.Layers.Add("ImageLayerBoundingBox",inMemoryFeatureLayer);
 
            winformsMap1.Overlays.Add("WorldOverlay",layerOverlay);
            winformsMap1.Overlays.Add("DynamicOverlay",dynamicOverlay);
            winformsMap1.Refresh();
        }
        private void btnLoadRasterImage_Click(object sender, EventArgs e)
        {
            //Loads the ImageLayer using the RectangleShape. The Rectangleshape represent the bounding box of the image layer in world coordinates:
            //-180: mininum longitude
            //90: maximum latitude
            //180: maximum longitude
            //-90: minimum latitude
            //Gets the RectangleShape from the InMemoryFeatureLayer of the "DynamicOverlay" LayerOverlay.
            LayerOverlay dynamicOverlay = (LayerOverlay)winformsMap1.Overlays["DynamicOverlay"];
            InMemoryFeatureLayer inMemoryFeatureLayer = (InMemoryFeatureLayer)dynamicOverlay.Layers["ImageLayerBoundingBox"];
            //Note that we are getting a PolygonShape, not a RectangleShape because rectangle is a not a specification of WKT.
            PolygonShape polygonShape = (PolygonShape)inMemoryFeatureLayer.InternalFeatures[0].GetShape();
            //Gets the Bounding box of the Polygonshape representing the extent of the image layer.
            RectangleShape imageLayerRectangleShape = polygonShape.GetBoundingBox();
            //Loads the ImageLayer with its extent as a the RectangleShape.
            GdiPlusRasterLayer gdiPlusRasterLayer = new GdiPlusRasterLayer(@"..\..\Data\World.tif", imageLayerRectangleShape);
            //The alternative way to load the image is with the acompanying world file. You do that by just specifying the image layer path and the accompanying world file
            //will be used. For more info, see http://en.wikipedia.org/wiki/World_file
            //GdiPlusRasterLayer gdiPlusRasterLayer = new GdiPlusRasterLayer(@"..\..\Data\World.tif");
            //The world file (.tfw) contains the world info as follow:
            //0.36000                   pixel size in the x-direction in map units/pixel
            //0                         rotation about y-axis (not used)
            //0                         rotation about x-axis (not used)
            //-0.36000                  pixel size in the y-direction in map units, almost always negative
            //-179.82000                x-coordinate of the center of the upper left pixel
            //89.8199999999999872       y-coordinate of the center of the upper left pixel
            gdiPlusRasterLayer.UpperThreshold = double.MaxValue;
            gdiPlusRasterLayer.LowerThreshold = 0;
            LayerOverlay ImageOverlay = new LayerOverlay();
            ImageOverlay.Layers.Add("GdiPlusImageLayer", gdiPlusRasterLayer);
            winformsMap1.Overlays.Add(ImageOverlay);
            winformsMap1.Refresh();
        }
 
        private void winformsMap1_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(winformsMap1.CurrentExtent, new ScreenPointF(e.X, e.Y), winformsMap1.Width, winformsMap1.Height);
            //Displays world coordinates.
            statusStrip1.Items["toolStripStatusLabelWorld"].Text = "(world) X:" + Math.Round(pointShape.X, 4) + " Y:" + Math.Round(pointShape.Y, 4);
        }
        private void btnClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }
 
    }
}