ThinkGeo Cloud
ThinkGeo UI Controls
ThinkGeo Open Source
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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 RotateIcon { 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 ThinkGeo.MapSuite.Core; namespace RotateIcon { public partial class TestForm : Form { private MapEngine mapEngine = new MapEngine(); private Bitmap bitmap = null; private Timer timer; private int index; private GeoImage planeGeoImageNorth = new GeoImage(@"..\..\data\jet_north.png"); private GeoImage planeGeoImageSouth = new GeoImage(@"..\..\data\jet_south.png"); private bool WestToEast = true; public TestForm() { InitializeComponent(); timer = new Timer(); } private void TestForm_Load(object sender, EventArgs e) { //Sets timer properties timer.Interval = 1500; timer.Tick += new EventHandler(timer_Tick); // Sets the extent and the background color mapEngine.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(-122,77,61,6), 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); //Adds the inMemoryFeatureLayer for plane icon. InMemoryFeatureLayer inMemoryFeatureLayer = new InMemoryFeatureLayer(); inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.PointType = PointType.Bitmap; inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = LineStyles.ContestedBorder2; inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20; PointShape planeShape = new PointShape(-95.2806, 38.9554); PointShape destinationPoint = new PointShape(36.04, 48.49); //Great circle is the shortest path between two points on the surface. http://en.wikipedia.org/wiki/Great_circle MultilineShape pathMultiLineShape = planeShape.GreatCircle(destinationPoint); inMemoryFeatureLayer.InternalFeatures.Add("Plane", new Feature(planeShape)); inMemoryFeatureLayer.InternalFeatures.Add("Path", new Feature(pathMultiLineShape)); mapEngine.DynamicLayers.Add("Air",inMemoryFeatureLayer); DrawImage(); timer.Start(); } void timer_Tick(object sender, EventArgs e) { StartingPoint startingPoint; float angleOffset; InMemoryFeatureLayer inMemoryFeatureLayer = (InMemoryFeatureLayer)mapEngine.DynamicLayers["Air"]; PointShape pointShape = inMemoryFeatureLayer.InternalFeatures[0].GetShape() as PointShape; LineShape pathLineShape = ((MultilineShape)inMemoryFeatureLayer.InternalFeatures[1].GetShape()).Lines[0]; //We have to use two different images for representing the plane because the images are side views. //What we are doing for planes, can do done for ground vehicle. It is the same principle. //Depending on the vehicle orientation of the side view image (pointing North, South, East or West), you will have to adjust the angleOffset. //Also, depending on what direction the vehicle, you will have to switch image. //If using a top down view, only one image can be used. if (WestToEast == true) { inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.Image = planeGeoImageNorth; startingPoint = StartingPoint.FirstPoint; angleOffset = 360; } else { inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.Image = planeGeoImageSouth; startingPoint = StartingPoint.LastPoint; angleOffset = 180; } index += 5; if (index <= 100) { LineShape lineShape = (LineShape)pathLineShape.GetLineOnALine(startingPoint, index); PointShape newPointShape = new PointShape(lineShape.Vertices[lineShape.Vertices.Count|- 1]); double angle = GetAngleFromTwoVertices(lineShape.Vertices[lineShape.Vertices.Count|- 2], lineShape.Vertices[lineShape.Vertices.Count|- 1]); inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.RotationAngle = angleOffset - (float)angle; pointShape.X = newPointShape.X; pointShape.Y = newPointShape.Y; pointShape.Id = "Plane"; inMemoryFeatureLayer.Open(); inMemoryFeatureLayer.EditTools.BeginTransaction(); inMemoryFeatureLayer.EditTools.Update(pointShape); inMemoryFeatureLayer.EditTools.CommitTransaction(); inMemoryFeatureLayer.Close(); } else { index = 0; if (WestToEast == true) WestToEast = false; else WestToEast = true; } DrawImage(); } private void EfficientlyMoveAPlaneImage_ParentChanged(object sender, EventArgs e) { timer.Stop(); } //We assume that the angle is based on a third point that is on top of b on the same x axis. private double GetAngleFromTwoVertices(Vertex b, Vertex c) { double alpha = 0; double tangentAlpha = (c.Y - b.Y) / (c.X - b.X); double Peta = Math.Atan(tangentAlpha); if (c.X > b.X) { alpha = 90 - (Peta * (180 / Math.PI)); } else if (c.X < b.X) { alpha = 270 - (Peta * (180 / Math.PI)); } else { if ( c.Y > b.Y) alpha = 0; if (c.Y < b.Y) alpha = 180; } return alpha; } 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 DrawImageDynamicLayers() { if (bitmap != null) { bitmap.Dispose(); } bitmap = new Bitmap(Map.Width, Map.Height); mapEngine.OpenAllLayers(); 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); } } }