1，使用閉合路徑

 Transaction ts = new Transaction(doc, "BIM");

            ts.Start();

            try

            {

                Level level = uidoc.ActiveView.GenLevel;

                PlanTopology pt = doc.get_PlanTopology(level);

                foreach (PlanCircuit pc in pt.Circuits)

                {

                    if (!pc.IsRoomLocated)

                    {

                        Room newRoom = doc.Create.NewRoom(null, pc);

                        LinkElementId elemid = new LinkElementId(newRoom.Id);

                        Location location = newRoom.Location;

                        LocationPoint locationPoint = location as LocationPoint;

                        XYZ point3d = locationPoint.Point;

                        UV point2d = new UV(point3d.X, point3d.Y);

                        RoomTag roomTag = doc.Create.NewRoomTag(elemid, point2d, view.Id);

                        if (family != null)

                        {

                            try

                            {

                                FamilySymbol symbol = family.Document.GetElement(family.GetFamilySymbolIds().First()) as FamilySymbol;

                                if (symbol != null)

                                {

                                    roomTag.ChangeTypeId(symbol.Id);

                                }

                            }

                            catch { }

                        }

                    }

                }

                ts.Commit();

            }

            catch

            {

                ts.Commit();

            }

2，使用點 建立 發現閉合路徑自動捕捉 拾取一個已存在的房間 複製屬性 房間的位置 暫時不能改動

 Reference refer = uidoc.Selection.PickObject(ObjectType.Element, "");

           Room room = doc.GetElement(refer) as Room;

           string roomDepartment = room.get_Parameter(BuiltInParameter.ROOM_DEPARTMENT).AsString();

           Transaction ts = new Transaction(doc,"BIM");

           ts.Start();

           XYZ xyz = uidoc.Selection.PickPoint();

           LocationPoint roomPoint = room.Location as LocationPoint;

           Room newRoom = doc.Create.NewRoom(doc.ActiveView.GenLevel,new UV(xyz.X,xyz.Y));

           //doc.Create.NewSpace(room.Level, new UV(roomPoint.Point.X, roomPoint.Point.Y));

           RoomTag tag = doc.Create.NewRoomTag(new LinkElementId(newRoom.Id), new UV(xyz.X, xyz.Y), doc.ActiveView.Id);

           newRoom.get_Parameter(BuiltInParameter.ROOM_DEPARTMENT).Set(roomDepartment);

           ts.Commit();

3，由於房間的位置是隻讀的 所以放置房間時 隨意選擇一點建立。獲得的幾何中心 刪除 再根據中心建立新的房間

UIDocument uidoc=commandData.Application.ActiveUIDocument;            Document doc=uidoc.Document;

           XYZ xyz = uidoc.Selection.PickPoint();            Solid sd = null;            Transaction ts = new Transaction(doc,"BIM");            ts.Start();

           Room newRoom = doc.Create.NewRoom(doc.ActiveView.GenLevel, new UV(xyz.X, xyz.Y));                     GeometryElement geo = newRoom.ClosedShell;                      foreach (GeometryObject obj in geo)            {                if (obj is Solid)                {                    Solid solid = obj as Solid;                    if (solid != null)                    {                        sd = solid;                      

                       break;                    }

               }            }                                XYZ Center = sd.ComputeCentroid();            XYZ roomCenter = new XYZ(Center.X, Center.Y, doc.ActiveView.GenLevel.ProjectElevation);            Room newRoom2 = doc.Create.NewRoom(doc.ActiveView.GenLevel, new UV(roomCenter.X, roomCenter.Y));            RoomTag tag = doc.Create.NewRoomTag(new LinkElementId(newRoom2.Id), new UV(roomCenter.X, roomCenter.Y), doc.ActiveView.Id);            doc.Delete(newRoom.Id);            ts.Commit();