GMap.Net解决方案之在WinForm和WPF中使用GMap.Net地图插件的开发

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Drawing;
 5 using System.Data;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 using GMap.NET.WindowsForms;
10 
11 namespace GMapWinFormDemo
12 {
13     public partial class MapControl : GMapControl
14     {
15         public MapControl()
16         {
17             InitializeComponent();
18         }
19     }
20 }

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 using GMap.NET;
10 using GMap.NET.WindowsForms;
11 using GMap.NET.MapProviders;
12 using GMap.NET.WindowsForms.Markers;
13 
14 namespace GMapDemo
15 {
16     public partial class MapForm : Form
17     {
18         private GMapOverlay markersOverlay = new GMapOverlay("markers"); //放置marker的图层
19 
20         public MapForm()
21         {
22             InitializeComponent();
23 
24             try
25             {
26                 System.Net.IPHostEntry e = System.Net.Dns.GetHostEntry("ditu.google.cn");
27             }
28             catch
29             {
30                 mapControl.Manager.Mode = AccessMode.CacheOnly;
31                 MessageBox.Show("No internet connection avaible, going to CacheOnly mode.", "GMap.NET Demo", MessageBoxButtons.OK, MessageBoxIcon.Warning);
32             }
33 
34             mapControl.CacheLocation = Environment.CurrentDirectory + "\\GMapCache\\"; //缓存位置
35             mapControl.MapProvider = GMapProviders.GoogleChinaMap; //google china 地图
36             mapControl.MinZoom = 2;  //最小比例
37             mapControl.MaxZoom = 24; //最大比例
38             mapControl.Zoom = 10;     //当前比例
39             mapControl.ShowCenter = false; //不显示中心十字点
40             mapControl.DragButton = System.Windows.Forms.MouseButtons.Left; //左键拖拽地图
41             mapControl.Position = new PointLatLng(32.064,118.704); //地图中心位置：南京
42 
43             mapControl.Overlays.Add(markersOverlay);
44             
45             mapControl.MouseClick += new MouseEventHandler(mapControl_MouseClick);
46         }
47         
48         void mapControl_MouseClick(object sender, MouseEventArgs e)
49         {
50             if (e.Button == System.Windows.Forms.MouseButtons.Right)
51             {
52                 PointLatLng point = mapControl.FromLocalToLatLng(e.X, e.Y);
53                 GMapMarker marker = new GMarkerGoogle(point, GMarkerGoogleType.green);
54                 markersOverlay.Markers.Add(marker);
55             }
56         }
57     }

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using GMap.NET.WindowsPresentation;
 6 
 7 namespace GMapWPFDemo
 8 {
 9     class MapControl : GMapControl
10     {
11     }
12 }

 1 Window x:Class="GMapWPFDemo.MainWindow"
 2         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 3         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 4         xmlns:src="clr-namespace:GMapWPFDemo"
 5         Title="MainWindow" Height="410" Width="618">
 6     Grid>
 7             GroupBox Name="mapgroup" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch">
 8             src:MapControl x:Name="mapControl" Zoom="13" MaxZoom="24" MinZoom="1" />
 9             GroupBox>
10     Grid>
11 Window>

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Windows;
 6 using System.Windows.Controls;
 7 using System.Windows.Data;
 8 using System.Windows.Documents;
 9 using System.Windows.Input;
10 using System.Windows.Media;
11 using System.Windows.Media.Imaging;
12 using System.Windows.Navigation;
13 using System.Windows.Shapes;
14 using GMap.NET;
15 using GMap.NET.MapProviders;
16 using GMap.NET.WindowsPresentation;
17 
18 namespace GMapWPFDemo
19 {
20     /// 

21     /// MainWindow.xaml 的交互逻辑
22     /// 
23     public partial class MainWindow : Window
24     {
25         public MainWindow()
26         {
27             InitializeComponent();
28 
29             try
30             {
31                 System.Net.IPHostEntry e = System.Net.Dns.GetHostEntry("ditu.google.cn");
32             }
33             catch
34             {
35                 mapControl.Manager.Mode = AccessMode.CacheOnly;
36                 MessageBox.Show("No internet connection avaible, going to CacheOnly mode.", "GMap.NET Demo", MessageBoxButton.OK, MessageBoxImage.Warning);
37             }
38 
39             mapControl.MapProvider = GMapProviders.GoogleChinaMap; //google china 地图
40             mapControl.MinZoom = 2;  //最小缩放
41             mapControl.MaxZoom = 17; //最大缩放
42             mapControl.Zoom = 5;     //当前缩放
43             mapControl.ShowCenter = false; //不显示中心十字点
44             mapControl.DragButton = MouseButton.Left; //左键拖拽地图
45             mapControl.Position = new PointLatLng(32.064, 118.704); //地图中心位置：南京
46 
47             mapControl.MouseLeftButtonDown += new MouseButtonEventHandler(mapControl_MouseLeftButtonDown);
48         }
49 
50         void mapControl_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
51         {
52             Point clickPoint = e.GetPosition(mapControl);
53             PointLatLng point = mapControl.FromLocalToLatLng((int)clickPoint.X, (int)clickPoint.Y);
54             GMapMarker marker = new GMapMarker(point);
55             mapControl.Markers.Add(marker);
56         }
57     }
58 }