AE基础(3) 

 1 using ESRI.ArcGIS.Controls;
 2 using System;
 3 using System.Collections.Generic;
 4 using System.ComponentModel;
 5 using System.Data;
 6 using System.Drawing;
 7 using System.Linq;
 8 using System.Text;
 9 using System.Threading.Tasks;
10 using System.Windows.Forms;
11 
12 namespace Ch02Ex04
13 {
14     public partial class Form1 : Form
15     {
16         int flag = 0;
17         public Form1()
18         {
19             InitializeComponent();        
20         }
21  
22         private void btnZoomIn_Click(object sender, EventArgs e)
23         {
24             axMapControl1.MousePointer = esriControlsMousePointer.esriPointerZoomIn;
25             flag = 2;
26         }
27         //加载地图文档
28         private void loadMapDocument()
29         {
30             System.Windows.Forms.OpenFileDialog openFileDialog;
31             openFileDialog = new OpenFileDialog();
32             openFileDialog.Title = "打开地图文档";
33             openFileDialog.Filter = "map documents(*.mxd)|*.mxd";
34             openFileDialog.ShowDialog();
35             string filePath = openFileDialog.FileName;
36             if (axMapControl1.CheckMxFile(filePath))
37             {
38                 axMapControl1.MousePointer = esriControlsMousePointer.esriPointerHourglass;
39                 axMapControl1.LoadMxFile(filePath, 0, Type.Missing);
40                 axMapControl1.MousePointer = esriControlsMousePointer.esriPointerDefault;
41             }
42             else
43             {
44                 MessageBox.Show(filePath + "不是有效的地图文档");
45             }
46         }
47         private void axMapControl1_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
48         {
49             ESRI.ArcGIS.Geometry.IEnvelope ipEnv;
50             if (flag == 2)
51             {
52                 ipEnv = axMapControl1.TrackRectangle();
53                 axMapControl1.Extent = ipEnv;
54             }
55             else if (flag == 1)
56             {
57                 //ipEnv = axMapControl1.TrackRectangle();
58                 ipEnv = axMapControl1.Extent;
59                 ipEnv.Expand(2, 2, true);
60                 axMapControl1.Extent = ipEnv;
61             }
62             else if (flag == 3)
63             {
64                 ipEnv = axMapControl1.Extent;
65                 axMapControl1.Pan();
66             }
67 
68         }
69 
70         private void btnZoomOut_Click(object sender, EventArgs e)
71         {
72             axMapControl1.MousePointer = esriControlsMousePointer.esriPointerZoomOut;
73             flag = 1;
74         }
75 
76         private void btnWalk_Click(object sender, EventArgs e)
77         {
78 
79             axMapControl1.MousePointer = esriControlsMousePointer.esriPointerPan;
80             flag = 3;
81         }
82 
83         private void btnFullextebt_Click(object sender, EventArgs e)
84         {
85             axMapControl1.Extent = axMapControl1.FullExtent;
86         }
87 
88         private void Form1_Click(object sender, EventArgs e)
89         {
90             loadMapDocument();
91         }
92 
93     
94     }
95 }
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posted @ 2013-09-14 19:41  文刀三石  阅读(282)  评论(0)    收藏  举报