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ThinkGeo Cloud
ThinkGeo UI Controls
ThinkGeo Open Source
Help and Support
External Resources
using System.Collections.Generic; using ThinkGeo.MapSuite.Core; namespace FlashingPointStyle { class FlashingPointStyle : PointStyle { private GeoImage geoImage = null; private bool inFlashingMode = false; private bool drawIcon; public GeoImage GeoImage { get { return geoImage; } set { geoImage = value; } } public bool InFlashingMode { get { return inFlashingMode; } set { inFlashingMode = value; } } protected override void DrawCore(IEnumerable<Feature> features, GeoCanvas canvas, System.Collections.ObjectModel.Collection<SimpleCandidate> labelsInThisLayer, System.Collections.ObjectModel.Collection<SimpleCandidate> labelsInAllLayers) { //Checks to see if in flashing mode or not. if (inFlashingMode) { if (drawIcon) { foreach (Feature feature in features) { PointShape centerPointShape = (PointShape)feature.GetShape(); canvas.DrawWorldImageWithoutScaling(geoImage, centerPointShape.X, centerPointShape.Y, DrawingLevel.LabelLevel, 0, 0, RotationAngle); } } drawIcon = !drawIcon; } else { foreach (Feature feature in features) { PointShape centerPointShape = (PointShape)feature.GetShape(); canvas.DrawWorldImageWithoutScaling(geoImage, centerPointShape.X, centerPointShape.Y, DrawingLevel.LabelLevel, 0, 0, RotationAngle); } } } } }
using System; using System.Collections.Generic; using System.Linq; using System.Windows.Forms; namespace FlashingPointStyle { 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.Data; using System.Drawing; using System.IO; using System.Windows.Forms; using ThinkGeo.MapSuite.Core; namespace FlashingPointStyle { public partial class TestForm : Form { private Timer timer; private Timer flashingTimer; private StreamReader mGPSData = new StreamReader(@"..\..\data\GPSinfo.txt"); private double previousLong; private double previousLat; private MapEngine mapEngine = new MapEngine(); private MapEngine mapEngine2 = new MapEngine(); private Bitmap bitmap = null; private Bitmap bitmap2 = null; Collection<AreaBaseShape> zones = null; FlashingPointStyle flashingPointStyle = null; public TestForm() { InitializeComponent(); timer = new Timer(); flashingTimer = new Timer(); } private void TestForm_Load(object sender, EventArgs e) { //Sets timers properties. timer.Interval = 1500; flashingTimer.Interval = 200; timer.Tick += new EventHandler(timer_Tick); flashingTimer.Tick += new EventHandler(flashingTimer_Tick); // Sets the extent and the background color of the MapEngine for Static Layers . mapEngine.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(-97.7591,30.3126,-97.7317,30.2964), Map.Width, Map.Height); mapEngine.BackgroundFillBrush = new GeoSolidBrush(GeoColor.StandardColors.LightGoldenrodYellow); // Sets the extent and the background color of the MapEngine for vehicle dynamic layer . mapEngine2.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(-97.7591, 30.3126, -97.7317, 30.2964), Map.Width, Map.Height); mapEngine2.BackgroundFillBrush = new GeoSolidBrush(GeoColor.StandardColors.Transparent); //Displays the World Map Kit as a background. ThinkGeo.MapSuite.Core.WorldMapKitLayer worldMapKitLayer = new ThinkGeo.MapSuite.Core.WorldMapKitLayer(); mapEngine.StaticLayers.Add(worldMapKitLayer); //Creates the polygons for the prohibited zones. PolygonShape polygonShape = new PolygonShape(); polygonShape.OuterRing.Vertices.Add(new Vertex(-97.7406,30.3057)); polygonShape.OuterRing.Vertices.Add(new Vertex(-97.7354,30.3031)); polygonShape.OuterRing.Vertices.Add(new Vertex(-97.7384,30.2979)); polygonShape.OuterRing.Vertices.Add(new Vertex(-97.7445,30.3006)); polygonShape.OuterRing.Vertices.Add(new Vertex(-97.7406,30.3057)); PolygonShape polygonShape2 = new PolygonShape(); polygonShape2.OuterRing.Vertices.Add(new Vertex(-97.747,30.3086)); polygonShape2.OuterRing.Vertices.Add(new Vertex(-97.745,30.3078)); polygonShape2.OuterRing.Vertices.Add(new Vertex(-97.7463,30.3057)); polygonShape2.OuterRing.Vertices.Add(new Vertex(-97.7486,30.3066)); polygonShape2.OuterRing.Vertices.Add(new Vertex(-97.747,30.3086)); //This collection is used in the timer_click to see if vehicle inside a zone or not. zones = new Collection<AreaBaseShape>(); zones.Add(polygonShape); zones.Add(polygonShape2); //InMemoryFeatureLayer for zones. InMemoryFeatureLayer zoneInMemoryFeatureLayer = new InMemoryFeatureLayer(); zoneInMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.FromArgb(80, GeoColor.StandardColors.Red), GeoColor.StandardColors.Black); zoneInMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20; zoneInMemoryFeatureLayer.InternalFeatures.Add("Zone1", new Feature(polygonShape)); zoneInMemoryFeatureLayer.InternalFeatures.Add("Zone2", new Feature(polygonShape2)); //InMemoryFeatureLayer for vehicle. InMemoryFeatureLayer inMemoryFeatureLayer = new InMemoryFeatureLayer(); //Adds FlashingPointStyle to CustomStyle. flashingPointStyle = new FlashingPointStyle(); flashingPointStyle.GeoImage = new GeoImage(@"..\..\data\sedan.png"); flashingPointStyle.RotationAngle = 45; inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.CustomStyles.Clear(); inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.CustomStyles.Add(flashingPointStyle); inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20; inMemoryFeatureLayer.InternalFeatures.Add("Car", new Feature(new PointShape())); mapEngine.DynamicLayers.Add("ZoneLayer", zoneInMemoryFeatureLayer); //Adds the InMemoryFeatureLayer for the car to the second mapengine to have it draw on separate bitmap mapEngine2.DynamicLayers.Add("CarLayer", inMemoryFeatureLayer); DrawImage(); timer.Start(); } void flashingTimer_Tick(object sender, EventArgs e) { DrawImage2(); } void timer_Tick(object sender, EventArgs e) { //Gets the GPS info from the textfile. DataTable carData = GetCarData(); double angle; InMemoryFeatureLayer inMemoryFeatureLayer = (InMemoryFeatureLayer)mapEngine2.DynamicLayers["CarLayer"]; PointShape pointShape = inMemoryFeatureLayer.InternalFeatures[0].GetShape() as PointShape; // Get the Row of Data we are working with. DataRow carDataRow = carData.Rows[0]; double Lat = Convert.ToDouble(carDataRow["LAT"]); double Long = Convert.ToDouble(carDataRow["LONG"]); //Gets the angle based on the current GPS position and the previous one to get the direction of the vehicle. angle = GetAngleFromTwoVertices(new Vertex(previousLong, previousLat), new Vertex(Long, Lat)); flashingPointStyle.RotationAngle = 90 - (float)angle; pointShape.X = Long; pointShape.Y = Lat; pointShape.Id = "Car"; inMemoryFeatureLayer.Open(); inMemoryFeatureLayer.EditTools.BeginTransaction(); inMemoryFeatureLayer.EditTools.Update(pointShape); inMemoryFeatureLayer.EditTools.CommitTransaction(); inMemoryFeatureLayer.Close(); previousLong = Long; previousLat = Lat; //At each new vehicle location, it checks if the vehicle is inside one of the zones. //If it is, it enables flashingTimer. bool isInside = false; foreach (AreaBaseShape areaBaseShape in zones) { if (areaBaseShape.Contains(pointShape)) { isInside = true; break; } } if (isInside == true) { flashingTimer.Start(); flashingPointStyle.InFlashingMode = true; } else { flashingTimer.Stop(); flashingPointStyle.InFlashingMode = false; } DrawImage2(); } 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 DrawImage2() { if (bitmap2 != null) { bitmap2.Dispose(); } bitmap2 = new Bitmap(Map.Width, Map.Height); mapEngine2.OpenAllLayers(); mapEngine2.DrawDynamicLayers(bitmap2, GeographyUnit.DecimalDegree); mapEngine2.CloseAllLayers(); //Combines the bitmaps of the two mapengines to generate the new image of the picturebox. Bitmap bitmap3 = new Bitmap(Map.Width, Map.Height); Graphics g = Graphics.FromImage(bitmap3); g.DrawImage(bitmap, 0, 0); g.DrawImage(bitmap2, 0, 0); Map.Image = bitmap3; } private DataTable GetCarData() { DataTable datatable = new DataTable(); datatable.Columns.Add("LAT"); datatable.Columns.Add("LONG"); string strLattitude = ""; string strLongitude = ""; // Read the next line from the text file with GPS data in it. string strCurrentText = mGPSData.ReadLine(); if (strCurrentText == "") { mGPSData.BaseStream.Seek(0, SeekOrigin.Begin); strCurrentText = mGPSData.ReadLine(); } while (strCurrentText != null) { // Every other line is a "/" and we want to skip those. if (strCurrentText.Trim() != "/") { string[] strSplit = strCurrentText.Split(','); // (':'); strLongitude = strSplit[0]; strLattitude = strSplit[1]; break; } strCurrentText = mGPSData.ReadLine(); } object[] objs = new object[2] { strLattitude, strLongitude }; datatable.Rows.Add(objs); return datatable; } //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 ToolBar_ButtonClick(object sender, ToolBarButtonClickEventArgs e) { switch (e.Button.Tag.ToString()) { case "Zoom In": mapEngine.CurrentExtent.ScaleDown(50); mapEngine2.CurrentExtent.ScaleDown(50); break; case "Zoom Out": mapEngine.CurrentExtent.ScaleUp(50); mapEngine2.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); mapEngine2.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); mapEngine2.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Left, 20); break; case "Pan Right": mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Right, 20); mapEngine2.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Right, 20); break; case "Pan Up": mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Up, 20); mapEngine2.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Up, 20); break; case "Pan Down": mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Down, 20); mapEngine2.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); } } }