引于：https://www.cnblogs.com/cadlife/articles/2668158.html
using System; using System.Collections.Generic; using System.Text; using Autodesk.AutoCAD.EditorInput ; using Autodesk.AutoCAD.Runtime ; using Autodesk.AutoCAD.ApplicationServices; using Autodesk.AutoCAD.DatabaseServices ; namespace CH02 { public class Class1 { //-------------------------------------------------------------- // 功能:获取用户输入 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("GetData")] public void GetData() { //获取Editor对象 Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; //获取整型数据 PromptIntegerOptions intOp = new PromptIntegerOptions("请输入多边形的边数："); PromptIntegerResult intRes; intRes = ed.GetInteger(intOp); //判断用户输入 if (intRes.Status == PromptStatus.OK) { int nSides = intRes.Value; ed.WriteMessage("多边形的边数为：" + nSides); } if (intRes.Status == PromptStatus.Cancel) { ed.WriteMessage("用户按了取消ESC键/n" ); } } //-------------------------------------------------------------- // 功能:要求用户输入点 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("PickPoint")] static public void PickPoint() { //获取Editor对象 Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; PromptPointOptions promptPtOp = new PromptPointOptions("选择一个点："); //指定的基点，如果指定了该点，则在选择的时候绘制一条橡皮线。 promptPtOp.BasePoint = new Autodesk.AutoCAD.Geometry.Point3d(0, 0, 0); PromptPointResult resPt; resPt = ed.GetPoint(promptPtOp); if (resPt.Status == PromptStatus.OK) { ed.WriteMessage("选择的点为：" + resPt.Value.ToString()); } } //-------------------------------------------------------------- // 功能:获取选择集 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("SelectEnt")] static public void SelectEnt() { //获取Editor对象 Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; PromptSelectionOptions selectionOp = new PromptSelectionOptions(); PromptSelectionResult ssRes = ed.GetSelection(selectionOp); if (ssRes.Status == PromptStatus.OK) { SelectionSet SS = ssRes.Value; int nCount = SS.Count; ed.WriteMessage("选择了{0}个实体" , nCount); } } //-------------------------------------------------------------- // 功能:获取选择集（带过滤） // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("SelectEnt2")] static public void SelectEnt2() { //获取Editor对象 Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; // 定义选择集选项 PromptSelectionOptions selectionOp = new PromptSelectionOptions(); //创建选择集过滤器，只选择块对象 TypedValue[] filList = new TypedValue[1]; filList[0] = new TypedValue((int)DxfCode.Start, "INSERT"); SelectionFilter filter = new SelectionFilter(filList); PromptSelectionResult ssRes = ed.GetSelection(selectionOp, filter); if (ssRes.Status == PromptStatus.OK) { SelectionSet SS = ssRes.Value; int nCount = SS.Count; ed.WriteMessage("选择了{0}个块" , nCount); } } } } using System; using System.Collections.Generic; using System.Text; using Autodesk.AutoCAD.EditorInput; using Autodesk.AutoCAD.Runtime; using Autodesk.AutoCAD.ApplicationServices; using Autodesk.AutoCAD.DatabaseServices; using Autodesk.AutoCAD.Geometry; namespace CH03 { public class Class1 { //-------------------------------------------------------------- // 功能:创建一个新层 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("CreateLayer")] public void CreateLayer() { ObjectId layerId; Database db = HostApplicationServices.WorkingDatabase; //开始一个事务 Transaction trans = db.TransactionManager.StartTransaction(); try { //首先取得层表 LayerTable lt = (LayerTable)trans.GetObject(db.LayerTableId, OpenMode.ForWrite); //检查MyLayer层是否存在 if (lt.Has("MyLayer")) { layerId = lt["MyLayer"]; } else { //如果MyLayer层不存在，就创建它 LayerTableRecord ltr = new LayerTableRecord(); ltr.Name = "MyLayer"; //设置层的名字 layerId = lt.Add(ltr); trans.AddNewlyCreatedDBObject(ltr, true); } //提交事务 trans.Commit(); } catch (Autodesk.AutoCAD.Runtime.Exception e) { //放弃事务 trans.Abort(); } finally { // 显式地释放 trans.Dispose(); } } //-------------------------------------------------------------- // 功能:创建一个圆 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("CreateCircle")] public void CreateCircle() { Database db = HostApplicationServices.WorkingDatabase; // 使用 "using" ，结束是自动调用事务的 "Dispose" using (Transaction trans = db.TransactionManager.StartTransaction()) { //获取块表和模型空间 BlockTable bt = (BlockTable)(trans.GetObject(db.BlockTableId, OpenMode.ForRead)); BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite); //创建一个圆并添加到块表记录（模型空间） Point3d center = new Point3d(10, 10, 0); Circle circle = new Circle(center, Vector3d.ZAxis, 10.0); circle.ColorIndex = 1; btr.AppendEntity(circle); trans.AddNewlyCreatedDBObject(circle, true); trans.Commit(); } } //-------------------------------------------------------------- // 功能:创建一个块定义（块表记录） // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- public ObjectId CreateBlkDef() { //定义函数的返回值ObjectId ObjectId blkObjId = new ObjectId(); Database db = HostApplicationServices.WorkingDatabase; // 使用 "using"关键字指定事务的边界 using (Transaction trans = db.TransactionManager.StartTransaction()) { //获取块表 BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForWrite); //通过块名myBlkName判断块表中是否包含块表记录 if ((bt.Has("myBlkName"))) { blkObjId = bt["myBlkName"];//如果已经存在，通过块名获取块对应的ObjectId } else { //创建一个圆 Point3d center = new Point3d(10, 10, 0); Circle circle = new Circle(center, Vector3d.ZAxis, 2); circle.ColorIndex = 1; //创建文本Text: MText text = new MText(); text.Contents = " "; text.Location = center; text.ColorIndex = 2; //创建新的块表记录 myBlkName BlockTableRecord newBtr = new BlockTableRecord(); newBtr.Name = "myBlkName"; newBtr.Origin = center; //保存块表记录到块表 blkObjId = bt.Add(newBtr); // 返回块对应的ObjectId trans.AddNewlyCreatedDBObject(newBtr, true); //Let the transaction know about any object/entity you add to the database! //保存新创建的实体到块表记录 newBtr.AppendEntity(circle); newBtr.AppendEntity(text); // 通知事务新创建了对象 trans.AddNewlyCreatedDBObject(circle, true); trans.AddNewlyCreatedDBObject(text, true); } trans.Commit(); //提交事务 } return blkObjId; } //-------------------------------------------------------------- // 功能:创建一个块引用 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("CreateBlk")] public void CreateBlkRef() { //获取块的插入点 Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; PromptPointOptions ptOps = new PromptPointOptions("选择块的插入点"); PromptPointResult ptRes; ptRes = ed.GetPoint(ptOps); Point3d ptInsert; if (ptRes.Status == PromptStatus.OK) { ptInsert = ptRes.Value ; } else { ptInsert = new Point3d(0, 0, 0); } Database db = HostApplicationServices.WorkingDatabase; // 使用 "using"关键字指定事务的边界 using (Transaction trans = db.TransactionManager.StartTransaction()) { //获取块表和模型空间 BlockTable bt = (BlockTable)(trans.GetObject(db.BlockTableId, OpenMode.ForWrite)); BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite); //创建块引用 BlockReference blkRef = new BlockReference(ptInsert,CreateBlkDef());// 指定插入点和所引用的块表记录 blkRef.Rotation = 1.57;//指定旋转角，按弧度 //保存新创建的块引用到模型空间 btr.AppendEntity(blkRef); trans.AddNewlyCreatedDBObject(blkRef, true); // 通知事务新创建了对象 trans.Commit(); //提交事务 } } //-------------------------------------------------------------- // 功能:读取对象的属性 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("OpenEnt")] public void OpenEnt() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; PromptEntityOptions entOps = new PromptEntityOptions("选择要打开的对象"); PromptEntityResult entRes; entRes = ed.GetEntity(entOps); if (entRes.Status != PromptStatus.OK) { ed.WriteMessage("选择对象失败，退出"); return; } ObjectId objId = entRes.ObjectId; Database db = HostApplicationServices.WorkingDatabase; using (Transaction trans = db.TransactionManager.StartTransaction()) { Entity ent = (Entity)trans.GetObject(objId, OpenMode.ForWrite); ent.ColorIndex = 1; trans.Commit(); } } } } using System; using System.Collections.Generic; using System.Text; using Autodesk.AutoCAD.EditorInput; using Autodesk.AutoCAD.Runtime; using Autodesk.AutoCAD.ApplicationServices; using Autodesk.AutoCAD.DatabaseServices; using Autodesk.AutoCAD.Geometry; namespace CH04 { public class Class1 { //-------------------------------------------------------------- // 功能:通过ObjectId打开对象 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("OpenEnt")] public void OpenEnt() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.WriteMessage("通过ObjectId打开对象\n"); PromptEntityOptions entOps = new PromptEntityOptions("选择要打开的对象\n"); PromptEntityResult entRes; entRes = ed.GetEntity(entOps); if (entRes.Status != PromptStatus.OK) { ed.WriteMessage("选择对象失败，退出"); return; } ObjectId objId = entRes.ObjectId; Database db = HostApplicationServices.WorkingDatabase; using (Transaction trans = db.TransactionManager.StartTransaction()) { Entity ent = trans.GetObject(objId, OpenMode.ForWrite) as Entity ; ent.ColorIndex = 1; trans.Commit(); } } //-------------------------------------------------------------- // 功能:类型识别和转换 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("GetType")] public void GetType() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.WriteMessage("数据库对象的类型识别和转换\n"); PromptEntityOptions entOps = new PromptEntityOptions("选择要打开的对象"); PromptEntityResult entRes; entRes = ed.GetEntity(entOps); if (entRes.Status != PromptStatus.OK) { ed.WriteMessage("选择对象失败，退出"); return; } ObjectId objId = entRes.ObjectId; Database db = HostApplicationServices.WorkingDatabase; using (Transaction trans = db.TransactionManager.StartTransaction()) { Entity ent = trans.GetObject(objId, OpenMode.ForWrite) as Entity; ed.WriteMessage("ent.GetRXClass().Name :" + ent.GetRXClass().Name + "\n"); if (ent is Line) { Line aLine = ent as Line; aLine.ColorIndex = 1; } else if (ent.GetType() == typeof(Circle)) { Circle cir = (Circle)ent; cir.ColorIndex = 2; } trans.Commit(); } } //-------------------------------------------------------------- // 功能:实体对象的属性 // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("EntPro")] public void EntPro() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.WriteMessage("实体对象的属性\n"); PromptEntityOptions entOps = new PromptEntityOptions("选择要打开的对象\n"); PromptEntityResult entRes; entRes = ed.GetEntity(entOps); if (entRes.Status != PromptStatus.OK) { ed.WriteMessage("选择对象失败，退出\n"); return; } ObjectId objId = entRes.ObjectId; Database db = HostApplicationServices.WorkingDatabase; using (Transaction trans = db.TransactionManager.StartTransaction()) { Entity ent = trans.GetObject(objId, OpenMode.ForWrite) as Entity; ed.WriteMessage("获取或设置实体的线型\n"); ed.WriteMessage("实体的原先的线型为 :" + ent.Linetype + "\n"); // 获取线型表记录 LinetypeTable lineTypeTbl = trans.GetObject(db.LinetypeTableId, OpenMode.ForRead) as LinetypeTable; // 确保DOT线型名已经加载到当前数据库 LinetypeTableRecord lineTypeTblRec = trans.GetObject(lineTypeTbl["DOT"], OpenMode.ForRead) as LinetypeTableRecord; // 设置实体的线型 ent.LinetypeId = lineTypeTblRec.ObjectId; // 设置实体的线型比例 ed.WriteMessage("设置实体的线型比例为2.0\n"); ent.LinetypeScale = 2.0; //设置实体的可见性 ent.Visible = true; //设置实体所在的层 ed.WriteMessage("实体的原先所在的层为 :" + ent.Layer + "\n"); ent.Layer = "layer0"; trans.Commit(); } } } } using System; using System.Collections.Generic; using System.Text; using System.Collections; using Autodesk.AutoCAD.EditorInput; using Autodesk.AutoCAD.Runtime; using Autodesk.AutoCAD.ApplicationServices; using Autodesk.AutoCAD.DatabaseServices; using Autodesk.AutoCAD.Geometry; namespace CH05 { public class Class1 { //-------------------------------------------------------------- // 功能:添加扩展数据XDATA // 作者： // 日期：2007-7-20 // 说明： // //---------------------------------------------------------------- [CommandMethod("AddXData")] public void AddXData() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.WriteMessage("添加扩充数据XDATA\n"); PromptEntityOptions entOps = new PromptEntityOptions("选择要打开的对象\n"); PromptEntityResult entRes; entRes = ed.GetEntity(entOps); if (entRes.Status != PromptStatus.OK) { ed.WriteMessage("选择对象失败，退出"); return; } ObjectId objId = entRes.ObjectId; Database db = HostApplicationServices.WorkingDatabase; using (Transaction trans = db.TransactionManager.StartTransaction()) { Entity ent = trans.GetObject(objId, OpenMode.ForWrite) as Entity ; ent.ColorIndex = 1; RegAppTable appTbl = trans.GetObject(db.RegAppTableId, OpenMode.ForWrite) as RegAppTable ; if (!appTbl.Has("MyAppName")) { RegAppTableRecord appTblRcd = new RegAppTableRecord(); appTblRcd.Name = "MyAppName"; appTbl.Add(appTblRcd); trans.AddNewlyCreatedDBObject(appTblRcd, true); } ResultBuffer resBuf = new ResultBuffer();//new TypedValue(1001, "MyAppName"), new TypedValue(1000, "开发部门")); resBuf.Add(new TypedValue(1001, "MyAppName"));//注册程序名称 resBuf.Add(new TypedValue(1000 , " 张三"));//姓名 resBuf.Add(new TypedValue(1000 , " 工程部"));//部门 resBuf.Add(new TypedValue(1040, 2000.0));//薪水 ent.XData = resBuf; trans.Commit(); } } //-------------------------------------------------------------- // 功能:获取扩展数据XDATA // 作者： // 日期：2007-7-20 // 说明： // //------------------------------------------------------------ [CommandMethod("GETXDATA")] public void GETXDATA() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.WriteMessage("获取扩充数据XDATA\n"); PromptEntityOptions entOps = new PromptEntityOptions("选择带扩展数据的对象"); PromptEntityResult entRes = ed.GetEntity(entOps); if (entRes.Status != PromptStatus.OK) { ed.WriteMessage("选择对象失败，退出"); return; } Database db = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Database; using (Transaction trans = db.TransactionManager.StartTransaction()) { Entity ent = (Entity)trans.GetObject(entRes.ObjectId, OpenMode.ForRead); ResultBuffer resBuf = ent.XData; if (resBuf != null) { // IEnumerator iter = resBuf.GetEnumerator(); while (iter.MoveNext()) { TypedValue tmpVal = (TypedValue)iter.Current; ed.WriteMessage(tmpVal.TypeCode.ToString() + ":"); ed.WriteMessage(tmpVal.Value.ToString() + "\n"); } } } } //-------------------------------------------------------------- // 功能:在命名对象词典中添加数据 // 作者： // 日期：2007-7-20 // 说明： // //------------------------------------------------------------ [CommandMethod("AddInNOD")] public void AddInNOD() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.WriteMessage("在命名对象词典中添加数据\n"); Database db = HostApplicationServices.WorkingDatabase; using (Transaction trans = db.TransactionManager.StartTransaction()) { //获取命名对象词典（NOD) DBDictionary NOD =trans.GetObject(db.NamedObjectsDictionaryId, OpenMode.ForWrite) as DBDictionary ; // 声明一个新的词典 DBDictionary copyrightDict; // 判断是否存在COPYRIGHT词典，没有则创建 try { // 获取COPYRIGHT词典 copyrightDict = (DBDictionary)trans.GetObject(NOD.GetAt("COPYRIGHT"), OpenMode.ForRead); } catch { //在NOD下创建COPYRIGHT词典 copyrightDict = new DBDictionary(); NOD.SetAt("COPYRIGHT", copyrightDict); trans.AddNewlyCreatedDBObject(copyrightDict, true); } // 在copyrightDict中，获取或创建 "author" 词典 DBDictionary authorDict; try { authorDict = (DBDictionary)trans.GetObject(copyrightDict.GetAt("Author"), OpenMode.ForWrite); } catch { authorDict = new DBDictionary(); //"author" doesn't exist, create one copyrightDict.UpgradeOpen(); copyrightDict.SetAt("Author", authorDict); trans.AddNewlyCreatedDBObject(authorDict, true); } // 通过Xrecord和ResultBuffer添加扩展数据 Xrecord authorRec; try { authorRec = (Xrecord)trans.GetObject(authorDict.GetAt("AuthorInfo"), OpenMode.ForWrite); } catch { authorRec = new Xrecord(); authorRec.Data = new ResultBuffer(new TypedValue((int)DxfCode.Text, "张三")); authorDict.SetAt("AuthorInfo", authorRec); trans.AddNewlyCreatedDBObject(authorRec, true); } trans.Commit(); } } //-------------------------------------------------------------- // 功能:获取命名对象词典中的数据 // 作者： // 日期：2007-7-20 // 说明： // //------------------------------------------------------------ [CommandMethod("GetInNOD")] public void GetInNod() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.WriteMessage("获取命名对象词典中数据\n"); Database db = HostApplicationServices.WorkingDatabase; using (Transaction trans = db.TransactionManager.StartTransaction()) { // 获取NOD DBDictionary NOD = (DBDictionary)trans.GetObject(db.NamedObjectsDictionaryId, OpenMode.ForRead, false); // 获取COPYRIGHT词典 DBDictionary copyrightDict = (DBDictionary)trans.GetObject(NOD.GetAt("COPYRIGHT"), OpenMode.ForRead); // 获取Author词典 DBDictionary AuthorDict = (DBDictionary)trans.GetObject(copyrightDict.GetAt("Author"), OpenMode.ForRead); // 获取AuthorInfo扩展记录Xrecord Xrecord authorXRec = (Xrecord)trans.GetObject(AuthorDict.GetAt("AuthorInfo"), OpenMode.ForRead); ResultBuffer resBuf = authorXRec.Data; TypedValue val = resBuf.AsArray()[0]; ed.WriteMessage("该图纸由{0}设计\n", val.Value); } } //-------------------------------------------------------------- // 功能:添加数据到数据库对象的扩展词典中 // 作者： // 日期：2007-7-20 // 说明： // //------------------------------------------------------------ [CommandMethod("AddExtDict")] public void AddExtDict() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.WriteMessage("创建对象扩展词典\n"); PromptEntityOptions entOps = new PromptEntityOptions("选择要添加扩展数据的块\n"); PromptEntityResult entRes = ed.GetEntity(entOps); if (entRes.Status != PromptStatus.OK) { ed.WriteMessage("选择对象失败，退出"); return; } Database db = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Database; using (Transaction trans = db.TransactionManager.StartTransaction()) { DBObject obj = trans.GetObject(entRes.ObjectId, OpenMode.ForWrite) as DBObject; BlockReference blkRef; if (obj is BlockReference) { blkRef = obj as BlockReference; } else { return; } // 创建对象的扩展词典 blkRef.CreateExtensionDictionary(); DBDictionary extensionDict = (DBDictionary)trans.GetObject(blkRef.ExtensionDictionary, OpenMode.ForWrite, false); // 通过Xrecord准备附加属性数据 Xrecord xRec = new Xrecord(); xRec.Data = new ResultBuffer( new TypedValue((int)DxfCode.Text, "张三"),// 姓名 new TypedValue((int)DxfCode.Real, 1200.0),//薪水 new TypedValue((int)DxfCode.Text, "技术部"));// 部门 // 在扩展词典中添加扩展记录 extensionDict.SetAt("EmployeeInfomation", xRec); trans.AddNewlyCreatedDBObject(xRec, true); trans.Commit(); } } //-------------------------------------------------------------- // 功能:获取数据库对象的扩展词典中的数据 // 作者： // 日期：2007-7-20 // 说明： // //------------------------------------------------------------ [CommandMethod("GetExtDict")] public void GetExtDict() { Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.WriteMessage("获取对象扩展词典信息\n"); PromptEntityOptions entOps = new PromptEntityOptions("选择添加了扩展数据的块\n"); PromptEntityResult entRes = ed.GetEntity(entOps); if (entRes.Status != PromptStatus.OK) { ed.WriteMessage("选择对象失败，退出"); return; } Database db = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Database; using (Transaction trans = db.TransactionManager.StartTransaction()) { DBObject obj = trans.GetObject(entRes.ObjectId, OpenMode.ForWrite) as DBObject; BlockReference blkRef; if (obj is BlockReference) { blkRef = obj as BlockReference; } else { ed.WriteMessage("选择对象不是块，退出\n"); return; } // 创建对象的扩展词典 DBDictionary extensionDict = (DBDictionary)trans.GetObject(blkRef.ExtensionDictionary, OpenMode.ForWrite, false); // 获取AuthorInfo扩展记录Xrecord Xrecord EmpXRec = (Xrecord)trans.GetObject(extensionDict.GetAt("EmployeeInfomation"), OpenMode.ForRead); ResultBuffer resBuf = EmpXRec.Data; TypedValue val = resBuf.AsArray()[0]; ed.WriteMessage("是员工姓名:{0}\n", val.Value); val = resBuf.AsArray()[1]; ed.WriteMessage("该员工的薪水:{0}\n", val.Value); val = resBuf.AsArray()[2]; ed.WriteMessage("该员工属于:{0}\n", val.Value); trans.Commit(); } } } }