简单实现ArcEngine的一些功能

这里放的代码都是目前感觉比较简洁的，可能会有缺陷，但是还是效率优先吧，以后有问题再补充。

using ESRI.ArcGIS.SystemUI;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Output;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Display;

1. 打开地图文档（简便、建议）

			//using ESRI.ArcGIS.Controls; 引用
            ICommand command = new ControlsOpenDocCommandClass();    
            command.OnCreate(mainMapControl.Object);
            command.OnClick();
            mainTOCControl.SetBuddyControl(mainMapControl);  // 手动绑定伙伴控件

1.2 保存地图文档

 private void saveToolStrip_Click(object sender, EventArgs e)
            {
                try
                {
                    string sMxdFileName = mainMapControl.DocumentFilename;
                    IMapDocument pMapDocument = new MapDocumentClass();
                    //检查文档是否为空以及有效性
                    if (sMxdFileName != null && mainMapControl.CheckMxFile(sMxdFileName))
                    {
                        if (pMapDocument.get_IsReadOnly(sMxdFileName))
                        {
                            MessageBox.Show("地图本当为只读，不能保存！");
                            pMapDocument.Close();
                            return;
                        }
                        
                        else
                        {
                        SaveFileDialog pSaveFileDialog = new System.Windows.Forms.SaveFileDialog();
                        pSaveFileDialog.Title = "请选择保存路径";
                        pSaveFileDialog.Filter = "ArcMap文档(*.mxd)|*.mxd|ArcMap模板(*.mxt)|*.mxt";
                        //当相同的文件存在是提示错误
                        pSaveFileDialog.OverwritePrompt = true;
                        pSaveFileDialog.RestoreDirectory = true;
                        if (pSaveFileDialog.ShowDialog() == DialogResult.OK)
                        {
                            //获取名字
                            sMxdFileName = pSaveFileDialog.FileName;
                        }
                        else
                        {
                            return;
                        }
                            pMapDocument.New(sMxdFileName);
                            pMapDocument.ReplaceContents(mainMapControl.Map as IMxdContents);
                            //保存为绝对路径
                            pMapDocument.Save(pMapDocument.UsesRelativePaths, true);
                            pMapDocument.Close();
                            MessageBox.Show("保存文档成功");
                    }
                    }
                   
                    
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
            }

1.3新建

        private void 新建ToolStripMenuItem_Click(object sender, EventArgs e)
        {
 
            SaveFileDialog SaveFileDlg = new SaveFileDialog();
            SaveFileDlg.Filter = "地图文档文件(*.mxd)|*.mxd";
            SaveFileDlg.Title = "输入需要新建地图文档的名称";
            SaveFileDlg.ShowDialog();

            IMapDocument pMapDocument = new MapDocumentClass();
            string strDocFile = SaveFileDlg.FileName;
            if (strDocFile == string.Empty)
                return;
            pMapDocument.New(strDocFile);
            pMapDocument.Open(strDocFile, "");
            mainMapControl.Map= pMapDocument.get_Map(0);
        }

1.4

Application.Exit();

2. 打开数据(数据库，shp， 栅格等多种数据类型)

    // 加载很多种数据
    ICommand command = new ControlsAddDataCommandClass();
    command.OnCreate(mainMapControl.Object);
    command.OnClick();
    mainMapControl.ActiveView.Refresh();

2.2 添加shp数据(为了效率不建议)

    // using ESRI.ArcGIS.Geodatabase;
    // using ESRI.ArcGIS.DataSourcesFile;
    // using ESRI.ArcGIS.DataSourcesRaster;
    
     private void 添加ShapefileToolStripMenuItem_Click(object sender, EventArgs e)
            {
    
                try
                {
                    //同样实例化一个打开文件的类对象
                    OpenFileDialog open = new OpenFileDialog();
                    // 如果打开正确
                    if (open.ShowDialog() == DialogResult.OK)
                    {
                        //首先定义一个空的路径
                        string filePath = string.Empty;
                        // 然后定义一个空的文件名
                        string file = string.Empty;
                        // 获取完整的文件路径
                        string filedir = open.FileName;
                        //如果路径为空，嘛都不返回
                        if (fileDir == "") return;
                        // 对完整路径进行截取  获取最后一个斜杠的索引
                        int pos = filedir.LastIndexOf('\');
                        // 截取字符串  路径
                        filePath =filedir.Substring(0, pos);
                        //文件名
                        file = filedir.Substring(pos+1);
                        // 需要两个参数
                        axMapControl1.AddShapeFile(filePath, file);
                        //刷新
                        axMapControl1.ActiveView.Refresh();
                    }
                }
                catch (Exception)
                {
                    MessageBox.Show("请打开正确的文档!", "提醒",MessageBoxButtons.OK, MessageBoxIcon.Error );
                }
            }

2.3 打开栅格

OpenFileDialog open = new OpenFileDialog();
                open.CheckFileExists = true;
                open.Title = "打开shp文件";
                open.RestoreDirectory = true;
                open.Multiselect = true;
                open.Filter = "(*.tif)|*.tif|(*.jpg)|*.jpg|(*.jpeg)|*.jpeg|(*.png)|*.png|(*.bmp)|*.bmp|(*.*)|*.*";
                if (open.ShowDialog() == DialogResult.OK)
                {
                    string filePath = open.FileName;
                    if (filePath == "") return;

                    IRasterLayer rasterLayer = new RasterLayerClass();
                    rasterLayer.CreateFromFilePath(filePath);
                    mainMapControl.AddLayer(rasterLayer, 0);

                    mainMapControl.ActiveView.Refresh();
                    mainTOCControl1.SetBuddyControl(mainMapControl);
                }
  1. 地图浏览

3…1 全图

        private void FullExtentTSButton_Click(object sender, EventArgs e)
            {
                mainMapControl.Extent = mainMapControl.FullExtent;
        
            }

3.2 等比例放大

F1
            private void btnZoomInStep_Click(object sender, EventArgs e)
            {
                IEnvelope  pEnvelope = mainMapControl.Extent;
                pEnvelope.Expand(0.5, 0.5, true);   //放大2倍
                mainMapControl.Extent = pEnvelope;
                mainMapControl.ActiveView.Refresh();
    
            }
F2
            ICommand command = new ControlsMapZoomInFixedCommandClass();
            command.OnCreate(mainMapControl.Object);
            command.OnClick();

3.3 等比例缩小（与放大的区别在于多了一个中心点的设置)

F1
            private void btnZoomIOutStep_Click(object sender, EventArgs e)
            {
                IActiveView pActiveView = mainMapControl.ActiveView;
                IPoint centerPoint = new PointClass();
                centerPoint.PutCoords((pActiveView.Extent.XMin + pActiveView.Extent.XMax) / 2, (pActiveView.Extent.YMax + pActiveView.Extent.YMin) / 2);
                IEnvelope envlop = pActiveView.Extent;
                envlop.Expand(1.5, 1.5, true);    //与放大的区别在于Expand的参数不同
                pActiveView.Extent.CenterAt(centerPoint);
                pActiveView.Extent = envlop;
                pActiveView.Refresh();
            }
F2
            ICommand command = new ControlsMapZoomOutFixedCommandClass();
            command.OnCreate(mainMapControl.Object);
            command.OnClick();

3.4 上一视图

F1
    // 定义全局变量
            IExtentStack pExtentStack;
            private void PreViewTSButton_Click(object sender, EventArgs e)
            {
                pExtentStack = mainMapControl.ActiveView.ExtentStack;
                //判断是否可以回到前一视图，第一个视图没有前视图
                if (pExtentStack.CanUndo())
                {
                    pExtentStack.Undo();      //撤销到上一视图范围
                    NextViewTSButton.Enabled = true;   //后一视图可以使用
                    if (!pExtentStack.CanUndo())
                    {
                        PreViewTSButton.Enabled = false;  //前一视图不能使用
                    }
                }
                mainMapControl.ActiveView.Refresh();
    
            }
F2
ICommand command = new ControlsMapZoomToLastExtentBackCommandClass();
command.OnCreate(mainMapControl.Object);
command.OnClick();
mainMapControl.ActiveView.Refresh();

3.5 下一视图

F1
            private void NextViewTSButton_Click(object sender, EventArgs e)
            {
                pExtentStack = mainMapControl.ActiveView.ExtentStack;
                //判断是否可以回到后一视图，最后一个视图没有后一视图
                if (pExtentStack.CanRedo())  //如果可以重做下一视图
                {
                    pExtentStack.Redo();   //重做到下一视图
                    PreViewTSButton.Enabled = true;   //上一视图按钮可以使用
    
                    if (!pExtentStack.CanRedo())  //如果不可以重做下一视图
                    {
                        NextViewTSButton.Enabled = false;   //下一视图不能用
                    }
                }
                mainMapControl.ActiveView.Refresh();
            }
F2
            ICommand command = new ControlsMapZoomToLastExtentForwardCommandClass();
            command.OnCreate(mainMapControl.Object);
            command.OnClick();
            mainMapControl.ActiveView.Refresh();
拉框放大、拉框缩小、漫游 = > 无脑方法（直接调用ICommand或者ITool接口）

无脑1. 拉框缩小

private void tsbtnZoomOut_Click(object sender, EventArgs e)
        {
            mainMapControl.CurrentTool = null;
            ICommand command = new ControlsMapZoomOutToolClass();
            command.OnCreate(mainMapControl.Object);
            mainMapControl.CurrentTool = command as ITool;
        }

无脑2. 拉框放大

        private void tsbtnZoomIn_Click(object sender, EventArgs e)
        {
            mainMapControl.CurrentTool = null;
            ICommand command = new ControlsMapZoomInToolClass();
            command.OnCreate(mainMapControl.Object);
            mainMapControl.CurrentTool = command as ITool;
   

        }

无脑3. 漫游

            mainMapControl.CurrentTool = null;
            ICommand command = new ControlsMapPanToolClass();
            command.OnCreate(mainMapControl.Object);
            mainMapControl.CurrentTool = command as ITool;
            mainMapControl.ActiveView.Refresh();

4. 保存地图文档

        private void 保存ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            try
            {

                // 获取当前文档的路径与名字
                string smxdFileName = mainMapControl.DocumentFilename;
                IMapDocument pMapDocument = new MapDocumentClass();
                //检查文档的有效性
                if (smxdFileName != null && mainMapControl.CheckMxFile(smxdFileName))
                {
                    //如果是只读
                    if (pMapDocument.get_IsReadOnly(smxdFileName))
                    {
                        MessageBox.Show("该文档是只读文档！！！");
                        pMapDocument.Close();
                        return;
                    }
                    // 如果可以保存
                    else
                    {
                        SaveFileDialog pSaveFileDialog = new System.Windows.Forms.SaveFileDialog();
                        pSaveFileDialog.Title = "选择保存路径";
                        pSaveFileDialog.Filter = "ArcMap文档(*.mxd)|*.mxd|ArcMap模板(*.mxt)|*.mxt";
                        pSaveFileDialog.OverwritePrompt = true;
                        pSaveFileDialog.RestoreDirectory = true;
                        // 如果可以
                        if (pSaveFileDialog.ShowDialog() == DialogResult.OK)
                        {
                            smxdFileName = pSaveFileDialog.FileName;
                        }
                        // 如果失败
                        else
                        {
                            return;
                        }
                        //可以之后继续保存
                        pMapDocument.New(smxdFileName);
                        pMapDocument.ReplaceContents(mainMapControl.Map as IMxdContents);
                        pMapDocument.Save(pMapDocument.UsesRelativePaths, true);
                        pMapDocument.Close();
                        MessageBox.Show("保存成功！");
                    }
                }

            }
            catch (Exception ex)
            {
                
                MessageBox.Show(ex.Message);
            }

        }

4.2 另存为

F1.简便方法， 调用ICommand接口
ICommand command = new ControlsSaveAsDocCommandClass();
command.OnCreate(mainMapControl.Object);
command.OnClick();
F2
                // 获取当前文档的路径与名字
                string smxdFileName = mainMapControl.DocumentFilename;
                IMapDocument pMapDocument = new MapDocumentClass();
                //检查文档的有效性
                if (smxdFileName != null && mainMapControl.CheckMxFile(smxdFileName))
                {
                    //如果是只读
                    if (pMapDocument.get_IsReadOnly(smxdFileName))
                    {
                        MessageBox.Show("该文档是只读文档！！！");
                        pMapDocument.Close();
                        return;
                    }
                    // 如果可以保存
                    else
                    {
                        SaveFileDialog pSaveFileDialog = new System.Windows.Forms.SaveFileDialog();
                        pSaveFileDialog.Title = "选择另存路径";
                        pSaveFileDialog.Filter = "ArcMap文档(*.mxd)|*.mxd|ArcMap模板(*.mxt)|*.mxt";
                        pSaveFileDialog.OverwritePrompt = true;
                        pSaveFileDialog.RestoreDirectory = true;
                        // 如果可以
                        if (pSaveFileDialog.ShowDialog() == DialogResult.OK)
                        {
                            smxdFileName = pSaveFileDialog.FileName;
                        }
                        // 如果失败
                        else
                        {
                            return;
                        }
                        //可以之后继续保存
                        pMapDocument.New(smxdFileName);
                        pMapDocument.ReplaceContents(mainMapControl.Map as IMxdContents);
                        pMapDocument.Save(true, true);
                        pMapDocument.Close();
                        MessageBox.Show("另存文档到" + smxdFileName + "成功！");
                    }
                }

5.待续…
  1. 输出地图（这里真的想用python写脚本， engine这么这么复杂）

7.1. 选择要素

        private void 选择工具ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            mainMapControl.CurrentTool = null;
            ICommand command = new ControlsSelectFeaturesToolClass();
            command.OnCreate(mainMapControl.Object);
            mainMapControl.CurrentTool = command as ITool;
            mainMapControl.ActiveView.Refresh();
        }

4.2 清除选择

private void 清空选择ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            IActiveView pActiveView = mainMapControl.ActiveView;
            pActiveView.FocusMap.ClearSelection();
            pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection,  null, pActiveView.Extent);
        }

7.3 缩放至选择

        private void 缩放至选择ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            ICommand command = new ControlsZoomToSelectedCommandClass();
            command.OnCreate(mainMapControl.Object);
            command.OnClick();
            mainMapControl.ActiveView.Refresh();

        }
  1. 查询
  1. 空间分析
  1. 数据视图与布局视图的同步
// 数据视图与布局视图同步
        private void mainMapControl_OnAfterScreenDraw(object sender, IMapControlEvents2_OnAfterScreenDrawEvent e)
        {
            IActiveView pActiveView = (IActiveView)mainPageLayoutControl1.ActiveView.FocusMap;
            IDisplayTransformation displayTransformation = pActiveView.ScreenDisplay.DisplayTransformation;
            displayTransformation.VisibleBounds = mainMapControl.Extent;
            mainPageLayoutControl1.ActiveView.Refresh();
            CopyToPageLayout();  // 调用下面的函数

        }

        // CopyToPageLayout() 布局视图与数据视图同步
        private void CopyToPageLayout()
        {
            IObjectCopy pObjectCopy = new ObjectCopyClass();
            object copyFromMap = mainMapControl.Map;
            object copiedMap = pObjectCopy.Copy(copyFromMap);   // 复制地图到copiedMap中
            object copyToMap = mainPageLayoutControl1.ActiveView.FocusMap;
            pObjectCopy.Overwrite(copiedMap, ref copyToMap);   // 复制地图
            mainPageLayoutControl1.ActiveView.Refresh();

        }

11.状态栏显示坐标

        // 可以设置坐标的显示
        private void mainMapControl_OnMouseMove(object sender, IMapControlEvents2_OnMouseMoveEvent e)
        {
            // 显示当前比例尺
            XYSysStripStatusLabel1.Text = " 比例尺 1:" + ((long)this.mainMapControl.MapScale).ToString(); 

            XYStripStatusLabel2.Text = " 当前坐标 X = " + e.mapX.ToString() + " Y = " + e.mapY.ToString() + " " + this.mainMapControl.MapUnits;
        }

 //当前坐标的后面的坐标单位为“ esriUnknownUnits”或“ esriMeters ”之类，即系统在正常单位的前面加上了“ esri ”，追求完美的我们自然看得不舒服。那就进行简单的替换吧。
        //首先定义个全局坐标单位变量 sMapUnits,再 Form1_Load 函数中进行初始化：   添加 axMapControl1 控件的 OnMapReplaced 事件，在事件响应函数中进行坐标单位替换

        private void mainMapControl_OnMapReplaced(object sender, IMapControlEvents2_OnMapReplacedEvent e)
        {
            esriUnits mapUnits = mainMapControl.MapUnits;

            switch (mapUnits)
            {
                case esriUnits.esriCentimeters:
                    sMapUnits = "Centimeters";
                    break;

                case esriUnits.esriDecimalDegrees:
                    sMapUnits = "Decimal Degrees";
                    break;

                case esriUnits.esriDecimeters:
                    sMapUnits = "Decimeters";
                    break;

                case esriUnits.esriFeet:
                    sMapUnits = "Feet";
                    break;

                case esriUnits.esriInches:
                    sMapUnits = "Inches";
                    break;

                case esriUnits.esriKilometers:
                    sMapUnits = "Kilometers";
                    break;

                case esriUnits.esriMeters:
                    sMapUnits = "Meters";
                    break;

                case esriUnits.esriMiles:
                    sMapUnits = "Miles";
                    break;

                case esriUnits.esriMillimeters:
                    sMapUnits = "Millimeters";
                    break;

                case esriUnits.esriNauticalMiles:
                    sMapUnits = "NauticalMiles";
                    break;

                case esriUnits.esriPoints:
                    sMapUnits = "Points";
                    break;

                case esriUnits.esriUnknownUnits:
                    sMapUnits = "Unknown";
                    break;

                case esriUnits.esriYards:
                    sMapUnits = "Yards";
                    break;
            }
        }
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原文地址：https://www.cnblogs.com/shuai06/p/12397474.html