背景

在Plant3d的開(kāi)發(fā)過(guò)程中，發(fā)現(xiàn)缺少一個(gè)類似revit的信息查看工具，同時(shí)做一些數(shù)據(jù)驗(yàn)證

思路

• 啟動(dòng)拾取

Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
PromptEntityResult res = ed.GetEntity("\n選擇一個(gè)實(shí)體: ");

• 讀取信息

            using (Transaction transaction = dwg.TransactionManager.StartTransaction())
            {
                DBObject ent = transaction.GetObject(res.ObjectId, OpenMode.ForRead);
                if (ent == null)
                {
                    return string.Empty;
                }
                if (res.ObjectId.ObjectClass.IsDerivedFrom(RXObject.GetClass(typeof(Pipe))))
                {
                    return Read(ent as Pipe);
                }
                else if (res.ObjectId.ObjectClass.IsDerivedFrom(RXObject.GetClass(typeof(Equipment))))
                {
                    return Read(ent as Equipment);
                }

                return "未識(shí)別對(duì)象";
            }