分类
MapObjects2.2 在C#中的应用(动态加载地图)‖
| using System; |
| using System.Drawing; |
| using System.Collections; |
| using System.ComponentModel; |
| using System.Windows.Forms; |
| using System.Data; |
| namespace LoadMap |
| { |
| /// <summary> |
| /// Form1 的摘要说明。 |
| /// </summary> |
| public class Fo | rm1 : System.Windows.Forms.F | orm |
| { |
| private Ax | MapObjects2.AxMap axMap1; |
| /// <summary> |
| /// 必需的设计器变量。 |
| /// </summary> |
| private Sy | stem.ComponentModel.Containe | r components = null; |
| public Form1() |
| { |
| // |
| // Windows 窗体设计器支持所必需的 |
| // |
| InitializeComponent(); |
| // |
| // TODO: 在 Initia | lizeComponent 调用后添加任何构造函数代码 |
| // |
| } |
| /// <summary> |
| /// 清理所有正在使用的资源。 |
| /// </summary> |
| protected override voi | d 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 ystem.Resources.Resource | .Resources.ResourceManager r Manager(typeof(Form1)); | esources = new S |
| this.axMap1 = new | AxMapObjects2.AxMap(); |
| ?(Syst xMap1)).BeginInit(); | em.ComponentModel.ISupportIn | itialize)(this.a |
| this.SuspendLayout(); |
| // |
| // axMap1 |
| // |
| this.a | xMap1.Dock = System.Windows. | Forms.DockStyle.Fill; |
| this.a | xMap1.Location = new System. | Drawing.Point(0, 0); |
| this.axMap1.Name = "axMap1"; |
| this.axMap1.OcxSta rms.AxHost.State)(resources.GetObjec | te = ((System.Windows.Fo t("axMap1.OcxState"))); |
| this.axMap1.Size = | new System.Drawing.Size(600, 357); |
| this.axMap1.TabIndex = 0; |
| // |
| // Form1 |
| // |
| this.A | utoScaleBaseSize = new Syste | m.Drawing.Size(6, 14); |
| this.C | lientSize = new System.Drawi | ng.Size(600, 357); |
| this.Controls.Add(this.axMap1); |
| this.Name = "Form1"; |
| this.Text = "Form1"; |
| this.Load += new S | ystem.EventHandler(this.Form1_Load); |
| ((Syst xMap1)).EndInit(); | em.ComponentModel.ISupportIn | itialize)(this.a |
| this.ResumeLayout(false); |
| } |
| #endregion |
| /// <summary> |
| /// 应用程序的主入口点。 |
| /// </summary> |
| [STAThread] |
| static void Main() |
| { |
| Application.Run(new Form1()); |
| } |
| private v | oid Form1_Load(object sender | , System.EventArgs e) |
| { |
| //定义数据连接 |
| MapObjects2.DataCo ects2.DataConnectionClass(); | nnection dc = new MapObj |
| //定义图层 |
| MapObj | ects2.MapLayer layer = new M | apObjects2.MapLayerClass(); |
| //我的地图文件都存 为自己的地图目录 | 在了"G:\LoadMap\bin\Debug\"目录下，请替换 |
| dc.Dat | abase = "G:\LoadMap\bin\D | ebug\"; |
| //连接不成功就退出 |
| if(!dc.Connect()) |
| { |
| M | essageBox.Show("在指定的文件 | 夹下没找到图层数据文件"); |
| Application.Exit(); |
| } |
| else//连接成功了就加载地图 |
| { |
| /* |
| * 地图加载顺序一般是面、线、点，先加载的在地图的最下 |
| */ |
| //加载图层States， |
| layer.GeoData | set = dc.FindGeoDataset("States"); |
| axMap1.Layers.Add(layer); |
| //加载图层Rivers， |
| l | ayer.GeoDataset = dc.FindGeo | Dataset("Rivers"); |
| axMap1.Layers.Add(layer); |
| //加载其它图层... |
| } |
| //必须进行刷新后才能显示 |
| axMap1.Refresh(); |
| } |
| } |
| } |