C# MapPolyline类代码示例

 //Initialize the route line indicator. 
 private void InitializeLine()
 {
     _line = new MapPolyline();
     _line.StrokeColor = Colors.Red;
     _line.StrokeThickness = 5;
     Map.MapElements.Add(_line);
 }

        void webClient_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
        {
            var rootObject = JsonConvert.DeserializeObject<Rootobject>(e.Result);
            double lat, longitude;
            MapPolyline line = new MapPolyline();
            line.StrokeColor = Colors.Green;
            line.StrokeThickness = 2;

            double[] coord = new double[2 * rootObject.direction[0].stop.Length];
            for (int i = 0; i < rootObject.direction[0].stop.Length; i++)
            {
                lat = Convert.ToDouble(rootObject.direction[0].stop[i].stop_lat);
                longitude = Convert.ToDouble(rootObject.direction[0].stop[i].stop_lon);

                line.Path.Add(new GeoCoordinate(lat, longitude));

                Ellipse myCircle = new Ellipse();
                myCircle.Fill = new SolidColorBrush(Colors.Green);
                myCircle.Height = 15;
                myCircle.Width = 15;
                myCircle.Opacity = 60;
                MapOverlay myLocationOverlay = new MapOverlay();
                myLocationOverlay.Content = myCircle;
                myLocationOverlay.PositionOrigin = new Point(0.5, 0.5);
                myLocationOverlay.GeoCoordinate = new GeoCoordinate(lat, longitude, 200);
                MapLayer myLocationLayer = new MapLayer();
                myLocationLayer.Add(myLocationOverlay);
                map.Layers.Add(myLocationLayer);
            }
            map.MapElements.Add(line);
        }

        public MainPage()
        {
            InitializeComponent();
            mainDatabase = new WorkoutDatabase();
            lastGPSlocation = null;
            joggingPolyLine = new MapPolyline();
            joggingPolyLine.Stroke = new SolidColorBrush(Colors.Blue);
            joggingPolyLine.StrokeThickness = 5;
            joggingPolyLine.Opacity = 0.7;
            joggingPolyLine.Locations = new LocationCollection();
            map1.Children.Add(joggingPolyLine);
            string deviceName = Microsoft.Phone.Info.DeviceExtendedProperties.GetValue("DeviceName").ToString();

            if (deviceName == "XDeviceEmulator")                                                                    // Checks for device name in order to determine whether to simulate a jogger or not
            {
                //Note: The following coordinates is just a Test coordinate for when running the GeoCoordinate simulator
               geowatcher = new GeoCoordinateSimulator(51.5941116666667, 4.77941666666667);

            }
            else
            {
                geowatcher = new GeoCoordinateWatcher(GeoPositionAccuracy.High);
            }
            geowatcher.PositionChanged += watcher_PositionChanged;
            //The next line is responsible for loading the database from Isolated Storage. The loading and saving implementation works HOWEVER, It is NOT loaded properly and the previous workoutlist does not display previously saved workouts.
               // mainDatabase = dataSave.loadDatabaseFromIsolatedStorage("WorkoutDatabase");

               // checkIfFileExists();
        }

        public WorkoutMapStatisticsPage()
        {
            InitializeComponent();
            routeLine = new MapPolyline();
            routeLine.Locations = selectedWorkout.routeLine.Locations; // Where the magic happens: Note: ALL routes MUST have a polyline, otherwise the application WILL ofcourse, CRASH!
            routeLine.Stroke = new SolidColorBrush(Colors.Blue);
            routeLine.StrokeThickness = 5;
            Pushpin pStart = new Pushpin();
            pStart.Content = "Start";
            pStart.Background = new SolidColorBrush(Colors.Green);
            Pushpin pFinish = new Pushpin();
            pFinish.Content = "Finish";
            pFinish.Background = new SolidColorBrush(Colors.Red);
            layer.AddChild(pStart, new GeoCoordinate(routeLine.Locations.First().Latitude, routeLine.Locations.First().Longitude));
            layer.AddChild(pFinish, new GeoCoordinate(routeLine.Locations.Last().Latitude, routeLine.Locations.Last().Longitude));
            map2.Children.Add(routeLine);
            map2.Children.Add(layer);
            textBlock5.Text = selectedWorkout.workoutName;
            textBlock6.Text = selectedWorkout.startTime;
            textBlock7.Text = String.Format("{0:F2}", selectedWorkout.distanceRan);
            textBlock8.Text = string.Format("{0:00}:{1:00}:{2:00}",
               selectedWorkout.elapsedTimeTS.Hours,
                selectedWorkout.elapsedTimeTS.Minutes,
                selectedWorkout.elapsedTimeTS.Seconds); ;

            double latitude;
            double longitude;
            getWorkoutRouteLocation(out latitude, out longitude);

            map2.Center = new GeoCoordinate(latitude, longitude);
            map2.ZoomLevel = 16;
        }

        private void Map_Loaded(object sender, RoutedEventArgs e)
        {
            Ellipse myCircle = new Ellipse();
            MapPolyline line = new MapPolyline();

            WebClient blue = new WebClient();
            line.StrokeColor = Colors.Blue;
            myCircle.Fill = new SolidColorBrush(Colors.Blue);
            blue.DownloadStringCompleted += new DownloadStringCompletedEventHandler(webClient_DownloadStringCompleted);
            blue.DownloadStringAsync(new Uri(blue946));
            WebClient green1 = new WebClient();
            line.StrokeColor = Colors.Green;
            myCircle.Fill = new SolidColorBrush(Colors.Green);
            green1.DownloadStringCompleted += new DownloadStringCompletedEventHandler(webClient_DownloadStringCompleted);
            green1.DownloadStringAsync(new Uri(green810));
            WebClient green2 = new WebClient();
            line.StrokeColor = Colors.Green;
            green2.DownloadStringCompleted += new DownloadStringCompletedEventHandler(webClient_DownloadStringCompleted);
            green2.DownloadStringAsync(new Uri(green830));
                    line.StrokeColor = Colors.Green;;
            WebClient green3 = new WebClient();
            green3.DownloadStringCompleted += new DownloadStringCompletedEventHandler(webClient_DownloadStringCompleted);
            green3.DownloadStringAsync(new Uri(green852));
                    line.StrokeColor = Colors.Green;
            WebClient orange = new WebClient();
            line.StrokeColor = Colors.Orange;
            myCircle.Fill = new SolidColorBrush(Colors.Orange);
            orange.DownloadStringCompleted += new DownloadStringCompletedEventHandler(webClient_DownloadStringCompleted);
            orange.DownloadStringAsync(new Uri(orange903));
            WebClient red = new WebClient();
            myCircle.Fill = new SolidColorBrush(Colors.Red);
            line.StrokeColor = Colors.Red;
            red.DownloadStringCompleted += new DownloadStringCompletedEventHandler(webClient_DownloadStringCompleted);
            red.DownloadStringAsync(new Uri(red931));
        }

        protected override void OnElementChanged(ElementChangedEventArgs<Map> e)
        {
            base.OnElementChanged(e);

            if (e.OldElement != null)
            {
                // Unsubscribe
            }

            if (e.NewElement != null)
            {
                var formsMap = (CustomMap)e.NewElement;
                var nativeMap = Control as MapControl;

                var coordinates = new List<BasicGeoposition>();
                foreach (var position in formsMap.RouteCoordinates)
                {
                    coordinates.Add(new BasicGeoposition() { Latitude = position.Latitude, Longitude = position.Longitude });
                }

                var polyline = new MapPolyline();
                polyline.StrokeColor = Windows.UI.Color.FromArgb(128, 255, 0, 0);
                polyline.StrokeThickness = 5;
                polyline.Path = new Geopath(coordinates);
                nativeMap.MapElements.Add(polyline);
            }
        }

    private void DrawLines(object sender, RoutedEventArgs e)
    {
        if (!DeleteShapesFromLevel(4))
        {
            var strokeColor = Colors.Green;

            //Drawing lines, notice the use of Geopath. Consists out of BasicGeopositions
            foreach (var dataObject in PointList.GetLines())
            {
                ///////////////////////////////////////////////////
                // Creating the a MapPolyLine 
                //   (stroke, path (list of BasicGeopositions)
                var shape = new MapPolyline
                {
                    StrokeThickness = 9,
                    StrokeColor = strokeColor,
                    StrokeDashed = false,
                    ZIndex = 4,
                    Path = new Geopath(dataObject.Points.Select(p => p.Position))
                };
                shape.AddData(dataObject);

                MyMap.MapElements.Add(shape);
            }
        }
    }

        public void SetAnimDash(PointCollection pc, ShapeLayer layer)
        {
            MapPolyline animDashLine = new MapPolyline()
            {
                MapStrokeThickness = 20,
                Points = pc,
                ScaleFactor = 0.2
            };

            animDashLine.Stroke = new SolidColorBrush(System.Windows.Media.Color.FromArgb(128, 255, 255, 255));
            animDashLine.StrokeLineJoin = PenLineJoin.Round;
            animDashLine.StrokeStartLineCap = PenLineCap.Flat;
            animDashLine.StrokeEndLineCap = PenLineCap.Triangle;
            animDashLine.StrokeDashCap = PenLineCap.Triangle;
            var dc = new DoubleCollection { 2, 2 };
            animDashLine.IsHitTestVisible = false;
            animDashLine.StrokeDashArray = dc;

            DoubleAnimation animation = new DoubleAnimation
            {
                From = 4,
                To = 0,
                FillBehavior = System.Windows.Media.Animation.FillBehavior.HoldEnd,
                RepeatBehavior = RepeatBehavior.Forever
            };

            var strokeStoryboard = new Storyboard();
            strokeStoryboard.Children.Add(animation);
            Storyboard.SetTargetProperty(animation, new PropertyPath("(Line.StrokeDashOffset)"));
            Storyboard.SetTarget(animation, animDashLine);
            strokeStoryboard.Begin();
            layer.Shapes.Add(animDashLine);
        }

 /// <summary>
 /// Handles MVVM Message for Map path.
 /// </summary>
 /// <param name="path">The path.</param>
 private void HandleMapPath(Geopath path)
 {
     // Remove previous paths from MapControl
     mapActivity.MapElements.Clear();
     // Validate input path
     if (path != null &&
         path.Positions.Any())
     {
         // Configure path to draw with polyline and assign path to MapControl
         MapPolyline loMapPolyline = new MapPolyline();
         loMapPolyline.Path = path;
         loMapPolyline.StrokeColor = (Color)Resources["SystemAccentColor"];
         loMapPolyline.StrokeThickness = 3;
         mapActivity.MapElements.Add(loMapPolyline);
         // Configure start position icon and assign path to MapControl
         BasicGeoposition loStartPosition = path.Positions[0];
         MapIcon loStartIcon = new MapIcon();
         loStartIcon.Location = new Geopoint(loStartPosition);
         loStartIcon.NormalizedAnchorPoint = new Point(0.5, 1.0);
         loStartIcon.Title = XportBand.Resources.Strings.MapPositionStartText;
         loStartIcon.Image = RandomAccessStreamReference.CreateFromUri(new Uri("ms-appx:///Assets/LocationDarkGreen.png"));
         mapActivity.MapElements.Add(loStartIcon);
         // Configure end position icon and assign path to MapControl
         BasicGeoposition loEndPosition = path.Positions[path.Positions.Count - 1];
         MapIcon loEndIcon = new MapIcon();
         loEndIcon.Location = new Geopoint(loEndPosition);
         loEndIcon.NormalizedAnchorPoint = new Point(0.5, 1.0);
         loEndIcon.Title = XportBand.Resources.Strings.MapPositionEndText;
         loEndIcon.Image = RandomAccessStreamReference.CreateFromUri(new Uri("ms-appx:///Assets/LocationDarkRed.png"));
         mapActivity.MapElements.Add(loEndIcon);
         // Center map to start position and assign default zoom level to 15 (TODO: auto-zoom)
         mapActivity.Center = new Geopoint(loStartPosition);
         mapActivity.ZoomLevel = 15;
     }
 }

        private async Task DrawPolyline(List<BasicGeoposition> geopositions)
        {
            ActivityMap.MapElements.Clear();

            if (geopositions.Any())
            {
                var polyLine = new MapPolyline { Path = new Geopath(geopositions), StrokeThickness = 4, StrokeColor = (Color)App.Current.Resources["StravaRedColor"] };
                ActivityMap.MapElements.Add(polyLine);

                MapIcon startMapIcon = new MapIcon();
                startMapIcon.Location = new Geopoint(geopositions.First());
                startMapIcon.NormalizedAnchorPoint = new Point(0.5, 0.5);
                startMapIcon.Image = RandomAccessStreamReference.CreateFromUri(new Uri("ms-appx:///Assets/Start.png"));
                ActivityMap.MapElements.Add(startMapIcon);

                MapIcon endMapIcon = new MapIcon();
                endMapIcon.Location = new Geopoint(geopositions.Last());
                endMapIcon.NormalizedAnchorPoint = new Point(0.5, 0.5);
                endMapIcon.Image = RandomAccessStreamReference.CreateFromUri(new Uri("ms-appx:///Assets/End.png"));
                ActivityMap.MapElements.Add(endMapIcon);

                var zoomed = false;
                while (!zoomed)
                    zoomed = await ActivityMap.TrySetViewBoundsAsync(GeoboundingBox.TryCompute(geopositions), null, MapAnimationKind.None);
            }
        }

        public Route()
        {
            // default settings
            route = new MapPolyline();
            route.Stroke = new SolidColorBrush(Colors.Blue);
            route.StrokeThickness = 5;
            route.Opacity = 0.7;

            route.Locations = RouteFromLocations();
        }

        void map1_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            Debug.WriteLine("map_MouseLeftButtonUp " + markerSelected + ", addPoint: " + addPoint);

            if (addPoint)
            {

                if (markerLayer == null) // create layer if it does not exists yet
                {
                    markerLayer = new MapLayer();
                    map1.Layers.Add(markerLayer);
                }


                MarkerCounter++;

                MapOverlay oneMarker = new MapOverlay();
                oneMarker.GeoCoordinate = map1.ConvertViewportPointToGeoCoordinate(e.GetPosition(map1));

                Ellipse Circhegraphic = new Ellipse();
                Circhegraphic.Fill = new SolidColorBrush(Colors.Yellow);
                Circhegraphic.Stroke = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Colors.Red);
                Circhegraphic.StrokeThickness = 10;
                Circhegraphic.Opacity = 0.8;
                Circhegraphic.Height = 30;
                Circhegraphic.Width = 30;

                oneMarker.Content = Circhegraphic;

                oneMarker.PositionOrigin = new Point(0.5, 0.5);
                Circhegraphic.MouseLeftButtonDown += Circhegraphic_MouseLeftButtonDown;
                Circhegraphic.MouseLeftButtonUp += Circhegraphic_MouseLeftButtonUp;

                markerLayer.Add(oneMarker);

                if (dynamicPolyline == null) // create polyline if it does not exists yet
                {
                    dynamicPolyline = new MapPolyline();
                    dynamicPolyline.StrokeColor = Color.FromArgb(0x80, 0xFF, 0x00, 0x00);
                    dynamicPolyline.StrokeThickness = 5;

                    dynamicPolyline.Path = new GeoCoordinateCollection() { 
                            map1.ConvertViewportPointToGeoCoordinate(e.GetPosition(map1))
                        };

                    map1.MapElements.Add(dynamicPolyline);
                }
                else // just add points to polyline here
                {
                    dynamicPolyline.Path.Add(map1.ConvertViewportPointToGeoCoordinate(e.GetPosition(map1)));
                }
            }
            addPoint = false;
            markerSelected = false;
        }

        public Favorites()
        {
            InitializeComponent();
            LoadWatcher();
            map1.LogoVisibility = Visibility.Collapsed;
            map1.CopyrightVisibility = Visibility.Collapsed;
            map1.Mode = new AerialMode();
            map1.ZoomLevel = 5;
            map1.ZoomBarVisibility = System.Windows.Visibility.Visible;

            var settings = IsolatedStorageSettings.ApplicationSettings;
            if (settings.Contains("favorites"))
            {
                var location = settings["favorites"].ToString();
                latitude = double.Parse(location.Substring(0, location.IndexOf(",") - 1));
                longtitude =  double.Parse(location.Substring(location.IndexOf(",") + 1));
                var locationsList = new LocationCollection();
                //locationsList.Add(new GeoCoordinate(56.5845698,40.5489514));
                //locationsList.Add(new GeoCoordinate(60.4885213, 80.785426));
                locationsList.Add(new GeoCoordinate(latitude,longtitude));
                locationsList.Add(new GeoCoordinate(latitude+0.85412, longtitude+0.12564));
                MapPolyline polyline = new MapPolyline();
                polyline.Stroke = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Colors.Black);
                polyline.StrokeThickness = 5;
                polyline.Opacity = 0.8;
                polyline.Locations = locationsList;

                //Pushpin pin = new Pushpin();

                //MessageBox.Show(location.Substring(0, location.IndexOf(",") - 1) + " \n  " + location.Substring(location.IndexOf(",") + 1));
                ////---set the location for the pushpin---
                //pin.Location = new GeoCoordinate(double.Parse(location.Substring(0, location.IndexOf(",") - 1)), double.Parse(location.Substring(location.IndexOf(",") + 1)));
                //pin.Name = "tmp";

                ////---add the pushpin to the map---

                //pin.Content = new Ellipse()
                //{
                //    //Fill = image,

                //    StrokeThickness = 10,
                //    Height = 100,
                //    Width = 100
                //};
                //pin.MouseLeftButtonUp += new MouseButtonEventHandler(Pushpin_MouseLeftButtonUp);

                //---add the pushpin to the map---
                map1.Children.Add(polyline);

                MessageBox.Show(location.ToString());
            }

            // settings["myemail"] = "[email protected]";
        }

    private void InitializePolyLineOnMap()
    {
      _polyline = new MapPolyline
      {
        Path = new GeoCoordinateCollection(),
        StrokeColor = Colors.Red,
        StrokeThickness = 3
      };

      Map.MapElements.Add(_polyline);
    }

        private void BuildPoints(MapPolyline polyline)
        {
            for (int i = 0; i < polyline.Points.Count; i++)
            {
                MapPinPoint pinPoint = new MapPinPoint();
                pinPoint.ImageSource = new BitmapImage(new Uri(@"/Resources/point_small.png", UriKind.RelativeOrAbsolute));
                MapLayer.SetLocation(pinPoint, polyline.Points[i]);
                this.pointLayer.Items.Add(pinPoint);
                this.AttachMouseEvents(pinPoint);

            }
        }