AutoCAD.net

nuget 搜索autocad.net

System.InvalidProgramException异常错误

autocad.net通过组件方式访问autocad，所以需要和autocad通信，不能单独exe启动
参考：https://forums.autodesk.com/t5/forums/forumtopicprintpage/board-id/152/message-id/53529/print-single-message/false/page/1

表空间

Block Table（块表）
Layer Table（层表）
TextStyle Table（文字样式表）
DimStyle Table（尺寸样式表）
Linetype Table（线型表）
UCS Table（用户坐标系表）
View Table（视图表）
Viewport Table（视口表）
RegApp Table（应用程序注册表）
DrawOrderTable (绘图层级）

对应的访问方式：BlockTable、LayerTable、TextStyleTable、DimStyleTable…

autocad纤程

autocad使用纤程（用户模式下的线程，一个线程可包含多个纤程）,纤程转换线程：

PVOID ConvertThreadToFiber(PVOID pvParam);

autocad调试，线程和纤程交互需要添加，否则只能调试纤程代码不能调试线程

Autodesk.AutoCAD.ApplicationServices.Application.SetSystemVariable("NEXTFIBERWORLD", 0);

添加上面配置后autocad才能附加调试
调试过程中vs频繁崩溃
VS 2015 设置

Turn on “Use Managed Compatibility Mode” via Tools –> Options –> Debugging.
Turn on “Enable native code debugging”（托管兼容模式） from Project –> Properties –> Debug.
Turn off "Xaml ui Debug"

System.InvalidOperationException: 已在“VisualTreeChanged”事件期间更改可视化树。

Tools -> Options -> Debugging -> General ->
Uncheck: Enable UI Debugging Tools for XAML

加载字体（**形未定义）

建议不要使用vs2017,开发是问题比较多，而且vs2017出现了平凡退出的情况
打开调试本地代码，才能加载字体调试，否则只能独立运行加载字体，或者平凡出现** 形未定义（加载字符集错误）

edit.getpoint()阻塞用户交互

autocad用户交互，阻塞当前代码执行，不阻塞消息事件，所以和自定义界面交互，可能出现循环阻塞在同一行代码的情况，需要把函数定义成命令（相同命令重复执行阻塞，只能内部条件避免）

 [CommandMethod("命令名称", CommandFlags.Session)]

避免autocad提示gedit 3内部异常
或者发送取消命令(autocad 2014)

 Doc.Editor.IsQuiescent判断是否有命令Doc.SendStringToExecute("\x03", false, false, false);   取消，无空格，其他命令需要（非同步执行,C++ autocad com组件可以实现同步执行）Doc.SendStringToExecute(" ", false, false, false);   一个空格空输入Application.SetSystemVariable("FILEDIA", 0);命令隐藏Application.SetSystemVariable("FILEDIA", 1);命令打开

Cad purge清理为引用数据

 public void ClearUnrefedBlocks(){Document doc = Application.DocumentManager.MdiActiveDocument;Editor ed = doc.Editor;Database db = doc.Database;using (Transaction trans = db.TransactionManager.StartTransaction()){BlockTable bt = trans.GetObject(db.BlockTableId, OpenMode.ForWrite)as BlockTable;foreach (ObjectId oid in bt){BlockTableRecord btr = trans.GetObject(oid, OpenMode.ForWrite)as BlockTableRecord;if (btr.GetBlockReferenceIds(false, false).Count == 0&& !btr.IsLayout){btr.Erase();}}trans.Commit();}}

代理对象

autocad支持自定义对象和以C++Com模式实现的ObjectARX对象（代理对象）
代理对象通过Object Enabler创建

Object Enabler 可使图形中的自定义对象的行为比代理图形更加智能

数据操作

修改数据line转polyline（添加LockDocument、UpgradeOpen、DowngradeOpen避免异常）

 using (Transaction trans = DwgConvert.Doc.Database.TransactionManager.StartTransaction()){using (DocumentLock m_DocumentLock = Doc.LockDocument()){entity.UpgradeOpen();//打开Autodesk.AutoCAD.DatabaseServices.Line ln = entity as Autodesk.AutoCAD.DatabaseServices.Line;Polyline pl = new Polyline();pl.AddVertexAt(0, new Point2d(ln.StartPoint.X,ln.StartPoint.Y),0,0,0);pl.AddVertexAt(1, new Point2d(ln.EndPoint.X,ln.EndPoint.Y), 0, 0, 0);pl.Layer = ln.Layer;pl.ConstantWidth = proIntRes.Value;modelSpace.AppendEntity(pl);entity.Database.TransactionManager.AddNewlyCreatedDBObject(pl,true);ln.Erase();//删除数据entity.DowngradeOpen();}trans.Commit();}

其他数据修改操作封装

//插入图块（非外部文件）
public static void InsertBlock(this BlockTableRecord blokRec, Autodesk.AutoCAD.Geometry.Point3d pt){using (Database sourceDb = new Database(true, false)){Autodesk.AutoCAD.DatabaseServices.Polyline pl = new Autodesk.AutoCAD.DatabaseServices.Polyline(4);pl.AddVertexAt(0, new Autodesk.AutoCAD.Geometry.Point2d(50,-50), 0, 0, 0);pl.AddVertexAt(1, new Autodesk.AutoCAD.Geometry.Point2d(-50,-50), 0, 0, 0);pl.AddVertexAt(2, new Autodesk.AutoCAD.Geometry.Point2d(0,100), 0, 0, 0);pl.AddVertexAt(3, new Autodesk.AutoCAD.Geometry.Point2d(50, -50), 0, 0, 0);using (Transaction trans = sourceDb.TransactionManager.StartTransaction()){BlockTable bt = trans.GetObject(sourceDb.BlockTableId, OpenMode.ForRead) as BlockTable;BlockTableRecord btr = trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;btr.AppendEntity(pl);trans.AddNewlyCreatedDBObject(pl, true);trans.Commit();}ObjectId blockId = blokRec.Database.Insert("camera", sourceDb, false);BlockReference blockRef = new BlockReference(pt, blockId); // 通过块定义添加块参照blokRec.AppendEntity(blockRef); //把块参照添加到块表记录blockRef.Database.TransactionManager.AddNewlyCreatedDBObject(blockRef, true);//return blockRef;}}
//获取图层名称public static ObjectId GetLayerObjectId(this Database db, string layerName){LayerTable lt = (LayerTable)db.LayerTableId.GetObject(OpenMode.ForRead);//if (!lt.Has(layerName))//{//    LayerTableRecord ltr = new LayerTableRecord();//    ltr.Name = layerName;//    lt.UpgradeOpen();//    lt.Add(ltr);//    db.TransactionManager.AddNewlyCreatedDBObject(ltr, true);//    lt.DowngradeOpen();//}if (lt.Has(layerName))return lt[layerName];elsereturn ObjectId.Null;}//设置图层名称public static void SetLayer(this Database db, string layerName){LayerTable lt = (LayerTable)db.LayerTableId.GetObject(OpenMode.ForRead);if (lt.Has(layerName)){db.Clayer = lt[layerName];}}//添加Block属性public static void AddAttsToBlocks(this BlockReference block, AttributeDefinition atts){Database db = block.Database;//获取数据库对象BlockTableRecord btr = db.TransactionManager.GetObject(block.BlockTableRecord, OpenMode.ForRead) as BlockTableRecord;btr.UpgradeOpen();btr.AppendEntity(atts);db.TransactionManager.AddNewlyCreatedDBObject(atts, true);//db.TransactionManager.Dispose();btr.DowngradeOpen();}//添加Block属性public static void AddAttributeDefinitionToBlocks(this ObjectId blockId, AttributeDefinition atts){Database db = blockId.Database;//获取数据库对象BlockTableRecord btr = blockId.GetObject(OpenMode.ForWrite) as BlockTableRecord;btr.AppendEntity(atts);db.TransactionManager.AddNewlyCreatedDBObject(atts, true);db.TransactionManager.Dispose();btr.DowngradeOpen();}//修改Block属性public static void UpdateAttributesInBlock(this BlockReference blockRef, Dictionary<string, string> attNameValues){foreach (ObjectId id in blockRef.AttributeCollection){AttributeReference attref = id.GetObject(OpenMode.ForRead) as AttributeReference;if (attNameValues.ContainsKey(attref.Tag.ToUpper())){attref.UpgradeOpen();//设置属性值attref.TextString = attNameValues[attref.Tag.ToUpper()].ToString();attref.DowngradeOpen();}}}//查询属性public static string GetValueAttributesInBlock(this BlockReference blockRef, string attNameValue){foreach (ObjectId id in blockRef.AttributeCollection){AttributeReference attref = id.GetObject(OpenMode.ForRead) as AttributeReference;if (attNameValue.ToUpper() == attref.Tag.ToUpper()){//设置属性值return attref.TextString;}}return "";}//添加属性public static void AddAttributeToBlockTableRecord(this BlockTableRecord blokRec, BlockReference blockRef, Dictionary<string,string> atts){if (!blokRec.HasAttributeDefinitions)//添加属性定义{AttributeDefinition aDef = new AttributeDefinition() { Tag=""};blokRec.ObjectId.AddAttributeDefinitionToBlocks(aDef);}foreach (KeyValuePair<string, string> attribute in atts){if (blockRef.GetValueAttributesInBlock(attribute.Key) == ""){AttributeReference attRef = new AttributeReference() { Tag = attribute.Key, TextString = attribute.Value };if (attribute.Key == "图例编码" || attribute.Key == "类型编号" || attribute.Key == "图例分类")attRef.Visible = false;blockRef.AttributeCollection.AppendAttribute(attRef);blockRef.Database.TransactionManager.AddNewlyCreatedDBObject(attRef, true);attRef.Dispose();}else{blockRef.UpdateAttributesInBlock(new Dictionary<string, string>() { { attribute.Key, attribute.Value } });}}}public static BlockReference ReferenceOuterFileBlock(this BlockTableRecord blokRec, Autodesk.AutoCAD.Geometry.Point3d pt,string file,string name){ObjectId refid = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Database.AttachXref(file, name);//ObjectId refid = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Database.OverlayXref(file, name);// 通过外部文件获取图块定义的ObjectIdBlockReference blockRef = new BlockReference(pt, refid); // 通过块定义添加块参照blokRec.AppendEntity(blockRef); //把块参照添加到块表记录blockRef.Database.TransactionManager.AddNewlyCreatedDBObject(blockRef, true); // 通过事务添加块参照到数据库return blockRef;}public static BlockReference ImportOuterFileBlock(this BlockTableRecord blokRec, Autodesk.AutoCAD.Geometry.Point3d pt,string file,string name){//Database sourceDb = new Database(false, true);//sourceDb.ReadDwgFile(file, FileShare.Read, true, "");//ObjectIdCollection blockIds = new ObjectIdCollection();//using (Transaction ts = database.TransactionManager.StartTransaction())//{//    BlockTable bt = (BlockTable)ts.GetObject(sourceDb.BlockTableId, OpenMode.ForRead, false);//    foreach (ObjectId btrId in bt)//    {//        BlockTableRecord btr = (BlockTableRecord)ts.GetObject(btrId, OpenMode.ForRead, false);//        if (!btr.IsAnonymous && !btr.IsLayout)//            blockIds.Add(btrId);//        btr.Dispose();//    }//    IdMapping mapping = new IdMapping();//    sourceDb.WblockCloneObjects(blockIds, database.BlockTableId, mapping, DuplicateRecordCloning.Replace, false);//}//sourceDb.Dispose();if (!File.Exists(file)) throw new Exception(string.Format("\n文件找不到（{0}）",file));using (Database sourceDb = new Database(false, false)){sourceDb.ReadDwgFile(file, FileShare.Read, true, "");sourceDb.CloseInput(true);ObjectId blockId = blokRec.Database.Insert(name, sourceDb, false);BlockReference blockRef = new BlockReference(pt, blockId); // 通过块定义添加块参照blokRec.AppendEntity(blockRef); //把块参照添加到块表记录blockRef.Database.TransactionManager.AddNewlyCreatedDBObject(blockRef, true);return blockRef;}}public static void AddDataToEntity(this Entity entity,Dictionary<string,string> dict){//绑定数据if (entity.ExtensionDictionary == ObjectId.Null){entity.CreateExtensionDictionary();}DBDictionary xDict = entity.Database.TransactionManager.GetObject(entity.ExtensionDictionary, OpenMode.ForRead) as DBDictionary;foreach (KeyValuePair<string, string> pair in dict){if (!xDict.Contains(pair.Key)){xDict.UpgradeOpen();Xrecord xRec = new Xrecord();ResultBuffer rb = new ResultBuffer();rb.Add(new TypedValue((int)DxfCode.Text, pair.Value));xRec.Data = rb;xDict.SetAt(pair.Key, xRec);xDict.DowngradeOpen();entity.Database.TransactionManager.AddNewlyCreatedDBObject(xRec, true);}}}public static string GetEntityData(this Entity entity,string key){//获取数据using (Transaction tr = entity.Database.TransactionManager.StartTransaction()){if (entity.ExtensionDictionary != ObjectId.Null){DBDictionary xDict = tr.GetObject(entity.ExtensionDictionary, OpenMode.ForRead) as DBDictionary;if (xDict.Contains(key)){ObjectId xRecId = xDict.GetAt(key);Xrecord xRec = tr.GetObject(xRecId, OpenMode.ForRead) as Xrecord;if (xRec != null)return xRec.Data.AsArray()[0].Value.ToString();elsereturn "";}}return "";}}public static void ScaleModel(this BlockReference entity, string text){//图例缩放//Extents3d extend = entity.GeometryExtentsBestFit(Autodesk.AutoCAD.Geometry.Matrix3d.Rotation(entity.Rotation,new Autodesk.AutoCAD.Geometry.Vector3d(0,0,1),entity.Position));//double dMaxX = extend.MaxPoint.X, dMaxY = extend.MaxPoint.Y, dMinX = extend.MinPoint.X, dMinY = extend.MinPoint.Y;List<Point> ptls = new List<Point>();Block.RecurBlockReference(entity, new Point(),0, ref ptls);//解析数据if (ptls.Count == 0) return;double dMaxX = ptls.Max(o => o.X), dMaxY = ptls.Max(o => o.Y), dMinX = ptls.Min(o => o.X), dMinY = ptls.Min(o => o.Y);string[] size = text.Split(new string[] { "mm", "*" }, StringSplitOptions.RemoveEmptyEntries);if (size.Length < 2) return;double sizelong, sizewidth;double.TryParse(size[0], out sizelong);double.TryParse(size[1], out sizewidth);Autodesk.AutoCAD.Geometry.Scale3d scale = new Autodesk.AutoCAD.Geometry.Scale3d(sizelong == 0 ? 1 : sizelong / (dMaxX - dMinX), sizewidth == 0 ? 1 : sizewidth / (dMaxY - dMinY), 1);entity.UpgradeOpen();entity.ScaleFactors = entity.ScaleFactors.PostMultiplyBy(scale);entity.DowngradeOpen();}[CommandMethod("DrawOrderTest")] //绘图层级次序static public void DrawOrderTest(){Document doc = Application.DocumentManager.MdiActiveDocument;Database db = doc.Database;Editor ed = doc.Editor;string message = "\nSelect a entity to move to bottom";PromptEntityOptions options = new PromptEntityOptions(message);PromptEntityResult acSSPrompt = ed.GetEntity(options);if (acSSPrompt.Status != PromptStatus.OK)return;using (Transaction tr = db.TransactionManager.StartTransaction()){Entity ent = tr.GetObject(acSSPrompt.ObjectId,OpenMode.ForRead) as Entity;//get the blockBlockTableRecord block = tr.GetObject(ent.BlockId,OpenMode.ForRead) as BlockTableRecord;//get the draw oder table of the blockDrawOrderTable drawOrder =tr.GetObject(block.DrawOrderTableId,OpenMode.ForWrite) as DrawOrderTable;ObjectIdCollection ids = new ObjectIdCollection();ids.Add(acSSPrompt.ObjectId);//move the selected entity so that entity is//drawn in the beginning of the draw order.drawOrder.MoveToBottom(ids);tr.Commit();}
}

文件操作

public static void NewDoc(string fileName){if (File.Exists(fileName)){OpenDoc(fileName);}else{string strTemplatePath = "acadiso.dwt";DocumentCollection acDocMgr = Application.DocumentManager;Document acDoc = acDocMgr.Add(strTemplatePath);acDocMgr.MdiActiveDocument = acDoc;acDoc.Database.SaveAs(fileName, true, DwgVersion.Current, Doc.Database.SecurityParameters);}}public static void OpenDoc(string fileName){DocumentCollection acDocMgr = Application.DocumentManager;foreach(Document doc in acDocMgr){if (doc.Database.Filename == fileName){//文件是否打开acDocMgr.MdiActiveDocument = doc;return;}}if (File.Exists(fileName))acDocMgr.Open(fileName, false);elsePutMessage("File " + fileName + " does not exist.");}public static void SaveDoc(string fileName){Doc.Database.SaveAs(fileName, true, DwgVersion.Current,Doc.Database.SecurityParameters);}

autocad命令

base命令（修改图块基点）
THUMBSAVE 保存缩略图
解组 ungroup
导出图像后再导出块对象
pu（-pu）资源清理，减小dwg文件大小(最好先剪贴或者拷贝后操作)
laydel 删除图层
XR外部参照管理
attmode 0属性文字不显示
pe选择多个直线转换多段线，x多段线转直线
cui 菜单管理
cuiload 菜单重加载（修改cui文件后需要调用cuiload卸载后加载刷新菜单栏）
netload加载插件或者autocad里面帮助搜索插件，按照说明设置文件夹导入

菜单自定义

cui命令加载或者cuiload重新加载cuix文件
工具栏

//工具栏Toolbar fdTb = cs.MenuGroup.Toolbars.FindToolbarWithName("XXXX");if (fdTb != null)fdTb.ToolbarItems.Clear();elsefdTb = new Toolbar("XXXX", cs.MenuGroup);ToolbarButton tlBtn1 = new ToolbarButton(mMar1.ElementID, "XXXX", fdTb, 0);ToolbarButton tlBtn2 = new ToolbarButton(mMar2.ElementID, "XXXX", fdTb, 0);ToolbarButton tlBtn3 = new ToolbarButton(mMar3.ElementID, "XXXXX", fdTb, 1);fdTb.ToolbarItems.Add(tlBtn1);fdTb.ToolbarItems.Add(tlBtn2);fdTb.ToolbarItems.Add(tlBtn3);fdTb.ToolbarVisible = ToolbarVisible.show;

菜单栏

PopMenu pmParent = cs.MenuGroup.PopMenus.FindPopWithName(customName);if (pmParent == null)pmParent = new PopMenu(customName, new StringCollection() { "POP14" }, "PMU_191_D624B", cs.MenuGroup);//清除菜单pmParent.PopMenuItems.Clear();new PopMenuItem(new MenuMacro(maGroup, "xxx", "xxxxx", ""), "xxx", pmParent, -1);new PopMenuItem(new MenuMacro(maGroup, "xxxx", "xxxx", ""), "xxxx", pmParent, -1);new PopMenuItem(pmParent, 2);MenuMacro mMar1 = new MenuMacro(maGroup, "xxxx", "SWJX_ScaleModel", "");mMar1.macro.SmallImage = LoginInfo.instance().AppPath+ "/Resources/尺寸.bmp";new PopMenuItem(mMar1, "xxx", pmParent, -1);new PopMenuItem(new MenuMacro(maGroup, "xxxxx", "xxxxxx", ""), "xxxx", pmParent, -1);MenuMacro mMar2 = new MenuMacro(maGroup, "xxxxx", "xxxx", "");mMar2.macro.SmallImage = LoginInfo.instance().AppPath + "/Resources/xx.bmp";new PopMenuItem(mMar2, "xxxx", pmParent, -1);MenuMacro mMar3 = new MenuMacro(maGroup, "xxxxx", "xxxxxx", "");mMar3.macro.SmallImage = LoginInfo.instance().AppPath + "/Resources/x.bmp";new PopMenuItem(mMar3, "xxxxx", pmParent, -1);
#if DEBUGnew PopMenuItem(new MenuMacro(maGroup, "xxxx", "xxxxxx", ""), "xxxx", pmParent, -1);
#endifnew PopMenuItem(new MenuMacro(maGroup, "xxxxx", "xxxxx", ""), "xxxxxx", pmParent, -1);
#if DEBUGnew PopMenuItem(pmParent, 9);
#elsenew PopMenuItem(pmParent, 8);
#endifnew PopMenuItem(new MenuMacro(maGroup, "xxxxx", "xxxxx", ""), "xxxxx", pmParent, -1);
#if DEBUGnew PopMenuItem(pmParent, 11);
#elsenew PopMenuItem(pmParent, 10);
#endifnew PopMenuItem(new MenuMacro(maGroup, "xxxxx", "SWJX_InsertCamera", ""), "xxxxxx", pmParent, -1);cs.MenuGroup.PopMenus.Add(pmParent);

功能区、选项卡、面板

             RibbonTabSource myRibbonTab = null;foreach (RibbonTabSource ribTab in cs.MenuGroup.RibbonRoot.RibbonTabSources){//选项卡...}Autodesk.AutoCAD.Customization.RibbonPanelSource panelSrc3 = null;foreach (Autodesk.AutoCAD.Customization.RibbonPanelSource ribPanel in          cs.MenuGroup.RibbonRoot.RibbonPanelSources){//面板...}

添加到工作区

//添加到工作区foreach (Workspace wk in cs.Workspaces){foreach(WorkspacePopMenu pm in wk.WorkspacePopMenus){//菜单...}if (!bFound){//找不到添加，使用cui命令检查cuix是否有多余的错误资源（影响绑定关系，最好每次调试清理一次）wk.WorkspacePopMenus.Add(new WorkspacePopMenu(wk, pmParent) { Display = 1 });}foreach (WorkspaceToolbar tbl in wk.WorkspaceToolbars){//工具栏...}if (!bFound){//找不到添加，使用cui命令检查cuix是否有多余的错误资源（影响绑定关系，最好每次调试清理一次）wk.WorkspaceToolbars.Add(new WorkspaceToolbar(wk, fdTb) { Display=1});}foreach (WSRibbonTabSourceReference pm in wk.WorkspaceRibbonRoot.WorkspaceTabs){//面板}if (!bFound){//找不到添加，使用cui命令检查cuix是否有多余的错误资源（影响绑定关系，最好每次调试清理一次）wk.WorkspaceRibbonRoot.WorkspaceTabs.Add(WSRibbonTabSourceReference.Create(myRibbonTab));}...}if (cs.IsModified) cs.Save();Application.ReloadAllMenus();

进度条

private static ProgressMeter s_Pmeter = new ProgressMeter();

动态修改数据

tr.Commit();//提交后修改绘制
tr.TransactionManager.QueueForGraphicsFlush();

鼠标右键

ContextMenuExtension cm = new ContextMenuExtension();
Autodesk.AutoCAD.ApplicationServices.Application.AddDefaultContextMenuExtension(cm);

cad颜色设置

1-255 255中基本颜色
0 表示 ByBlock
256 表示 ByLayer

内存中绘cad图

int Width = 512,WallThickness = 60;Autodesk.AutoCAD.GraphicsSystem.Manager gsm = doc.GraphicsManager;using (Transaction tran = doc.Database.TransactionManager.StartTransaction()){ViewportTableRecord vTbRec = (ViewportTableRecord)tran.GetObject(doc.Editor.ActiveViewportId, OpenMode.ForRead);using (Autodesk.AutoCAD.GraphicsSystem.View view = new Autodesk.AutoCAD.GraphicsSystem.View()){using (Autodesk.AutoCAD.GraphicsSystem.Device dev = gsm.CreateAutoCADOffScreenDevice()){dev.DeviceRenderType = Autodesk.AutoCAD.GraphicsSystem.RendererType.Default;dev.BackgroundColor = System.Drawing.Color.Black;dev.Add(view);dev.Update();using (Autodesk.AutoCAD.GraphicsSystem.Model model = gsm.CreateAutoCADModel()){view.VisualStyle = new Autodesk.AutoCAD.GraphicsInterface.VisualStyle(vst);view.Mode = Autodesk.AutoCAD.GraphicsSystem.RenderMode.FlatShaded;using (Transaction tr = doc.Database.TransactionManager.StartTransaction()){Point Max = new Point() { X = double.NaN, Y = double.NaN }, Min = new Point() { X= double.NaN,Y= double.NaN};LayerTable layTbl = tr.GetObject(doc.Database.LayerTableId, OpenMode.ForRead) as LayerTable;BlockTable bt = (BlockTable)tr.GetObject(doc.Database.BlockTableId, OpenMode.ForRead);foreach (ObjectId btId in bt){BlockTableRecord btr = (BlockTableRecord)tr.GetObject(btId, OpenMode.ForRead);foreach (ObjectId btrId in btr){BlockTableRecord modelSpace = tr.GetObject(btId, OpenMode.ForRead) as BlockTableRecord;//删除未被引用的块if (modelSpace.GetBlockReferenceIds(false, false).Count == 0 && !modelSpace.IsLayout)continue;DBObject obj = tr.GetObject(btrId, OpenMode.ForRead);if ((obj is Autodesk.AutoCAD.DatabaseServices.Line || obj is Polyline || obj is Polyline3d) && (obj as Entity).Layer == LayerName.instance()[(int)LayerTag.Wall]){Entity entity = (obj as Entity);//entity.UpgradeOpen();//entity.Color = Autodesk.AutoCAD.Colors.Color.FromColor(System.Drawing.Color.White);//entity.DowngradeOpen();//获取数据的最大边界if (double.IsNaN(Max.X) || Max.X < entity.GeometricExtents.MaxPoint.X)Max.X = entity.GeometricExtents.MaxPoint.X;if (double.IsNaN(Min.X)|| Min.X > entity.GeometricExtents.MinPoint.X)Min.X = entity.GeometricExtents.MinPoint.X;if (double.IsNaN(Max.Y) || Max.Y < entity.GeometricExtents.MaxPoint.Y)Max.Y = entity.GeometricExtents.MaxPoint.Y;if (double.IsNaN(Min.Y) || Min.Y > entity.GeometricExtents.MinPoint.Y)Min.Y = entity.GeometricExtents.MinPoint.Y;//if (obj is Polyline && (obj as Polyline).ConstantWidth > WallThickness)//    WallThickness = (int)(obj as Polyline).ConstantWidth/2;view.Add(obj, model);}}}tr.Commit();//Max.Z = Doc.Database.Extmax.Z;//Min.Z = Doc.Database.Extmin.Z;Max.X += WallThickness; Max.Y += WallThickness; Min.X -= WallThickness; Min.Y -= WallThickness;if (double.IsNaN(Max.X) || double.IsNaN(Min.X) || double.IsNaN(Max.Y) || double.IsNaN(Min.Y)){dev.OnSize(new System.Drawing.Size(Width, (int)(Width * (doc.Database.Extmax.Y - doc.Database.Extmin.Y) / (doc.Database.Extmax.X - doc.Database.Extmin.X))));view.ZoomExtents(doc.Database.Extmax, doc.Database.Extmin);view.SetView(vTbRec.Target, vTbRec.Target.Subtract(new Vector3d(0, 0, 1)), Vector3d.ZAxis, doc.Database.Extmax.X - doc.Database.Extmin.X, doc.Database.Extmax.Y - doc.Database.Extmin.Y);using (System.Drawing.Bitmap bitmap = view.GetSnapshot(new System.Drawing.Rectangle(0, 0, Width, (int)(Width * (doc.Database.Extmax.Y - doc.Database.Extmin.Y) / (doc.Database.Extmax.X - doc.Database.Extmin.X))))){Bitmap2Png(bitmap).Save(filename);dev.Erase(view);view.EraseAll();}}else{dev.OnSize(new System.Drawing.Size(Width, (int)(Width * (Max.Y - Min.Y) / (Max.X - Min.X))));view.ZoomExtents(Max.ToPoint3d(), Min.ToPoint3d());view.SetView(vTbRec.Target, vTbRec.Target.Subtract(new Vector3d(0, 0, 1)), Vector3d.ZAxis, Max.X - Min.X, Max.Y - Min.Y);using (System.Drawing.Bitmap bitmap = view.GetSnapshot(new System.Drawing.Rectangle(0, 0, Width, (int)(Width * (Max.Y - Min.Y) / (Max.X - Min.X))))){Bitmap2Png(bitmap).Save(filename);dev.Erase(view);view.EraseAll();}}}}}}}

标注

半径标注RadialDimension
角度标注LineAngularDimension2
转角标注RotatedDimension
多重引线MLeader

     MLeader mld = new MLeader();int ldNum = mld.AddLeader();int lnNum = mld.AddLeaderLine(ldNum);mld.AddFirstVertex(lnNum, startPt);mld.AddLastVertex(lnNum, endPt);mld.ArrowSymbolId = arrId;mld.LeaderLineType = LeaderType.SplineLeader;

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