摘要：
利用linq获取在两点确定的矩形内的块参照Query syntax:private ObjectId[] FindBlockReferencesInRectangle(Point3d pt1, Point3d pt2, Database db) { using (Transaction tr = db.TransactionManager.StartOpenCloseTransaction()) using (Line line = new Line(pt1, pt2)) { Exte... 阅读全文
