大家好,已经很久没有更新了,今天写一篇关于WPF 使用 Gmap.NET 相关的,网上很多Winform的很**,所以我给Wpf进行一些补充。虽然它已经很久没有更新了,但是也只能用这个了。没别的好选择的,毕竟它也没啥可更新的,也可以理解。
使用它之前请Nuget安装一下GMap.NET.Core、GMap.NET.WindowsPresentation 的库。ok 我们直接开始。
我们在MainWindows中写上一个WrapPanel 用于存放Gmap的容器。
"1" Grid.Column="1" Grid.RowSpan="2" x:Name="mapPanel">
随后我们在MainWindows构造函数中进行配置,然后给mapPanel中添加了radarMap控件。还有鼠标右击的
public MainWindow() { m_viewModel = new ViewModelMain(); InitializeComponent(); radarMap = new GMap.NET.WindowsPresentation.GMapControl(); InitMapControl(radarMap); this.mapPanel.Children.Add(radarMap); radarMap.MouseRightButtonUp += RadarMap_MouseRightButtonUp; this.videoWindows.Child = pictureBox; DrawWarningArea(); }
随后在初始化容器中配置一些地图的设置,这里面有一个静态文件,里面也没啥。自己也可以写,我就不把Config写出来了。
private void InitMapControl(GMap.NET.WindowsPresentation.GMapControl radarMap) { //radarMap.Name = "radarMap"; radarMap.Manager.Mode = AccessMode.ServerAndCache; radarMap.Position = Config.CenterPoint; radarMap.ShowCenter = false; radarMap.DragButton = System.Windows.Input.MouseButton.Left; radarMap.MinZoom = Config.MINZOOM; radarMap.MaxZoom = Config.MAXZOOM; radarMap.Zoom = Config.INITZOOM; radarMap.OnMapZoomChanged += radarMap_OnMapZoomChanged; }
这个是鼠标右击添加Marker的,这个就比较恶心了,由于Wpf中没有overlays的概念,所以你就直接添加marker就行。具体看代码,这个里面有个自定义控件。
ListpointLatlngs = new List (); private void RadarMap_MouseRightButtonUp(object sender, MouseButtonEventArgs e) { Point clickPoint = e.GetPosition(radarMap); PointLatLng point = radarMap.FromLocalToLatLng((int)clickPoint.X, (int)clickPoint.Y); pointLatlngs.Add(point); GMapMarker currentMarker = new GMapMarker(point); { currentMarker.Shape = new CustomMarker(1,currentMarker, "custom position marker"); currentMarker.Offset = new System.Windows.Point(-15, -15); currentMarker.ZIndex = int.MaxValue; radarMap.Markers.Add(currentMarker); } }
具体是写了个控件,要不Wpf没办法渲染上。
"DisplayControlTerminal.Map.CustomMarker" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:local="clr-namespace:DisplayControlTerminal.Map" mc:Ignorable="d" d:DesignHeight="5.75" d:DesignWidth="6"> "icon" Source="/Resources/bigMarkerGreen.png" VerticalAlignment="Center" HorizontalAlignment="Center" Height="4" Margin="1,0,3,3" Width="2"/>
还有那个Circle是在DrawWarningArea里画出来的,调用了里面带参的构造函数,然后里面就不用管了。
private void DrawWarningArea() { for (int i = 0; i < Config.SCOPE_DIS; i++) { GMapMarker it = new GMapMarker(Config.CenterPoint); it.ZIndex = -1; Circle c = new Circle((i + 1).ToString() + "km", (i + 1) * 1000); c.Tag = it; c.IsHitTestVisible = false; c.UpdateCircle(radarMap); it.Shape = c; radarMap.Markers.Add(it); Circles.Add(it); } GMapMarker crossCenter = new GMapMarker(Config.CenterPoint); Cross cross = new Cross(); cross.Tag = crossCenter; cross.SetOffset(); crossCenter.Shape = cross; //crossCenter.ZIndex = 55; radarMap.Markers.Add(crossCenter); //m.Shape = new CustomMarker(this, m, "ceshi"); //m.ZIndex = 55; //radarMap.Markers.Add(m); }
最重要的是如何画轨迹,我第一时间就想到了Pen类,然后根据pointlatlng这个集合我们想办法去搞事情,果不其然,我们只需要让你的硬件设备给你的那 pointLatlngs 集合中添加就行,但如何将经纬度转换成本地坐标 就比较复杂了。
ListpointLatlngs = new List ();
private void Button_Click(object sender, RoutedEventArgs e) { for (int i = 0; i < pointLatlngs.Count; i++) { GMapRoute gmRoute = new GMapRoute(new List() { pointLatlngs[i] , pointLatlngs.Count-1 == i ? pointLatlngs[i] : pointLatlngs[i + 1]}) { Shape = new Line() { StrokeThickness = 4, Stroke = System.Windows.Media.Brushes.BlueViolet } }; radarMap.Markers.Add(gmRoute); } }
最后效果图