form1.cs

这个是mapxtreme2004 C# ASP。NET 关于桌面距离测量功能的一个简单历程希望大家一起学习

//通过使用CustomPolylineMapTool来实现在图上进行距离测量的程序
//程序设计：月光宝盒(by MoonLight)
//完成时间：2005年11月11日
//主要内容：
//	1-使用CustomPloylineMapTool工具来进行地图上的测距
//	2-使用内嵌资源BMP和CUR来对工具条和鼠标来进行样式更改
//	3-使用Windows工具条来进行地图工具的赋予
//	4-使用statusBar显示相关信息
//	5-为地图增加了比例尺修饰，并对其地图单位进行了修改
//说明：
//	地图使用的是国家基础地理信息，坐标系统为经纬度坐标系统
//	程序在VS.NET2003上调试通过

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Reflection;
using System.Runtime.InteropServices;

using MapInfo.Windows.Dialogs;
using MapInfo.Windows.Controls;
using MapInfo.Engine;
using MapInfo.Data;
using MapInfo.Data.Find;
using MapInfo.Styles;
using MapInfo.Mapping;
using MapInfo.Tools;
using MapInfo.Geometry;

namespace CSMapTest
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private MapInfo.Windows.Controls.MapControl mapControl1;
		private System.Windows.Forms.Panel panel1;
		private System.Windows.Forms.ToolBar toolBar1;
		private System.Windows.Forms.ToolBarButton toolBarButton1;
		private System.Windows.Forms.ToolBarButton toolBarButton2;
		private System.Windows.Forms.ToolBarButton toolBarButton3;
		private System.Windows.Forms.ToolBarButton toolBarButton4;
		private System.Windows.Forms.ToolBarButton Separator_1;
		private System.Windows.Forms.ToolBarButton toolBarButton5;
		private System.Windows.Forms.ToolBarButton toolBarButton6;
		private System.Windows.Forms.ToolBarButton toolBarButton7;
		private System.Windows.Forms.ToolBarButton toolBarButton8;

		private int distCount = 0;//计算距离时点击地图的次数。
		private double[,] distxy = new double[50,2];//用于计算距离所使用的存储数据的数组
		private int i=0,j=0;//用于所有FOR循环的计数器
		private double Dist = 0;//用于测量距离的工具


		private System.Windows.Forms.StatusBar statusBar1;
		private System.Windows.Forms.StatusBarPanel statusBarPanel1;
		private System.Windows.Forms.StatusBarPanel statusBarPanel2;
		private System.Windows.Forms.StatusBarPanel statusBarPanel3;
		private System.Windows.Forms.ToolBarButton Separator_2;
		private System.Windows.Forms.ToolBarButton toolBarTest;
		private System.Windows.Forms.ToolBarButton toolBarButton9;
		private System.Windows.Forms.ToolBarButton toolBarButton10;
		private System.Windows.Forms.ToolBarButton toolBarButton11;
		private System.Windows.Forms.ToolBarButton toolBarButton12;
		private System.Windows.Forms.ToolBarButton Separator_3;

		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//

			this.WindowState = System.Windows.Forms.FormWindowState.Maximized;

			//将整个数组都初始化为(0,0)
			for(i=0;i<50;i++)
				for (j=0;j<2;j++)
					distxy[i,j]=0;

			//以下代码是完成工具条的图片索引的添加
			ImageList imList = new ImageList();
			imList.ImageSize = new Size(18, 16);
			imList.ColorDepth = ColorDepth.Depth4Bit;
			imList.TransparentColor = Color.FromArgb(192, 192, 192);

			// adds the bitmap
			//imList.Images.AddStrip(new Bitmap(@"D:\VisualNet\Mydistance\buttons.bmp"));
			imList.Images.AddStrip(new Bitmap(
				Assembly.GetExecutingAssembly().GetManifestResourceStream(
				this.GetType(), "buttons.bmp")));
			
			toolBar1.ImageList = imList;
			toolBarButton1.ImageIndex = 18;
			toolBarButton2.ImageIndex = 15;
			toolBarButton3.ImageIndex = 16;
			toolBarButton4.ImageIndex = 17;
			toolBarButton5.ImageIndex = 30;
			toolBarButton6.ImageIndex = 31;
			toolBarButton7.ImageIndex = 28;
			toolBarButton8.ImageIndex = 29;
			toolBarButton9.ImageIndex = 10;
			toolBarButton10.ImageIndex = 19;
			toolBarButton11.ImageIndex = 40;
			toolBarButton12.ImageIndex = 43;

			toolBarTest.ImageIndex = 47;

			//mapControl1的工具使用事件
			this.mapControl1.Tools.Used += new MapInfo.Tools.ToolUsedEventHandler(Tools_Used);

			//添加自定义工具，CustomPolylineMapTool用于测量距离
			mapControl1.Tools.Add("UserDist", new CustomPolylineMapTool(true,true,true,
				mapControl1.Viewer, mapControl1.Handle.ToInt32(), mapControl1.Tools,
				mapControl1.Tools.MouseToolProperties, mapControl1.Tools.MapToolProperties));

			//为地图加上比例尺条
			mapControl1.Map.Zoom = new MapInfo.Geometry.Distance(
				CoordSys.ConvertDistanceUnits(DistanceUnit.Kilometer,mapControl1.Map.Zoom.Value,mapControl1.Map.Zoom.Unit),
				DistanceUnit.Kilometer);

			ScaleBarAdornment a = new ScaleBarAdornment(mapControl1.Map);
			ScaleBarAdornmentControl ac = new ScaleBarAdornmentControl(a, mapControl1.Map);
			ac.Location = new System.Drawing.Point(5,30);
			mapControl1.AddAdornment(a, ac);
		}




		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			System.Resources.ResourceManager mapControl1Resources = new System.Resources.ResourceManager(typeof(CSMapTest.Form1));
			MapInfo.Persistence.WorkSpaceLoader mapControl1Loader = new MapInfo.Persistence.WorkSpaceLoader(((System.IO.Stream)(mapControl1Resources.GetObject("mapControl1.Map"))));
			this.mapControl1 = new MapInfo.Windows.Controls.MapControl();
			this.panel1 = new System.Windows.Forms.Panel();
			this.toolBar1 = new System.Windows.Forms.ToolBar();
			this.toolBarButton1 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton2 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton3 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton4 = new System.Windows.Forms.ToolBarButton();
			this.Separator_1 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton5 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton6 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton7 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton8 = new System.Windows.Forms.ToolBarButton();
			this.Separator_2 = new System.Windows.Forms.ToolBarButton();
			this.toolBarTest = new System.Windows.Forms.ToolBarButton();
			this.statusBar1 = new System.Windows.Forms.StatusBar();
			this.statusBarPanel1 = new System.Windows.Forms.StatusBarPanel();
			this.statusBarPanel2 = new System.Windows.Forms.StatusBarPanel();
			this.statusBarPanel3 = new System.Windows.Forms.StatusBarPanel();
			this.toolBarButton9 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton10 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton11 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton12 = new System.Windows.Forms.ToolBarButton();
			this.Separator_3 = new System.Windows.Forms.ToolBarButton();
			this.panel1.SuspendLayout();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel2)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel3)).BeginInit();
			this.SuspendLayout();
			// 
			// mapControl1
			// 
			this.mapControl1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.mapControl1.Location = new System.Drawing.Point(0, 0);
			this.mapControl1.Name = "mapControl1";
			this.mapControl1.Size = new System.Drawing.Size(692, 481);
			this.mapControl1.TabIndex = 0;
			this.mapControl1.Text = "mapControl1";
			this.mapControl1.DoubleClick += new System.EventHandler(this.mapControl1_DoubleClick);
			mapControl1Loader.Load(this.mapControl1.Map);
			// 
			// panel1
			// 
			this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
			this.panel1.Controls.Add(this.mapControl1);
			this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.panel1.Location = new System.Drawing.Point(0, 0);
			this.panel1.Name = "panel1";
			this.panel1.Size = new System.Drawing.Size(696, 485);
			this.panel1.TabIndex = 1;
			// 
			// toolBar1
			// 
			this.toolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] {
																						this.toolBarButton1,
																						this.toolBarButton2,
																						this.toolBarButton3,
																						this.toolBarButton4,
																						this.Separator_1,
																						this.toolBarButton5,
																						this.toolBarButton6,
																						this.toolBarButton7,
																						this.toolBarButton8,