在不同的 AutoCAD 文档间复制对象

/*

使用 Clone()函数可以在同一 AutoCAD 文档间复制对象。 在不同的 AutoCAD 文档间复制对象，则需要调用Database类的方法WblockCloneObjects.
以下代码演示，将一外部 AutoCAD 文档（D:\test.dwg）中的图元复制到当前文档。

*/

[CommandMethod("TestCopyBetweenDwgFiles")] public void TestCopyBetweenDwgFiles() { Document doc = Application.DocumentManager.MdiActiveDocument; Database db = doc.Database; using (Transaction tr = db.TransactionManager.StartTransaction()) { using (Database srcDb = new Database(false, false)) { srcDb.ReadDwgFile(@"D:\test.dwg", FileOpenMode.OpenForReadAndReadShare, true, ""); ObjectIdCollection oids = GetDbModelSpaceEntities(srcDb); if (oids.Count > 0) { IdMapping idMap = new IdMapping(); srcDb.WblockCloneObjects(oids, db.CurrentSpaceId, idMap, DuplicateRecordCloning.Ignore, false); } } tr.Commit(); } } ///

/// 获取数据库模型空间的所有图元 ///

private ObjectIdCollection GetDbModelSpaceEntities(Database db) { ObjectIdCollection oids = new ObjectIdCollection(); using (Transaction tr = db.TransactionManager.StartTransaction()) { BlockTable blockTbl = tr.GetObject(db.BlockTableId, OpenMode.ForRead) as BlockTable; BlockTableRecord modelSpace = tr.GetObject( blockTbl[BlockTableRecord.ModelSpace], OpenMode.ForRead) as BlockTableRecord; foreach (ObjectId oid in modelSpace) { DBObject dbobj = tr.GetObject(oid, OpenMode.ForRead); if (dbobj is Entity) { oids.Add(oid); } } } return oids; }