简单实现ArcEngine的一些功能

您所在的位置：网站首页 › 简单的一些代码 › 简单实现ArcEngine的一些功能

简单实现ArcEngine的一些功能

2024-07-12 13:35| 来源: 网络整理| 查看: 265

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); } 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…

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(); } 查询空间分析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; } }

【本文地址】

简单实现ArcEngine的一些功能

简单实现ArcEngine的一些功能

今日新闻

推荐新闻