ArcSDE是空间数据库引擎,允许用户用关系数据库管理系统(RDBMS)存储和管理空间数据.设计并实现了基于.NET平台的ArcSDE矢量数据访问的C+ +类库.这些类按托管和非托管两层进行设计,数据访问功能由非托管类调用ArcSDE C API 实现,托管类对外公开非托管类的功能,可被任何.NET兼容的程序设计语言调用. -ArcSDE spatial database engine that allows users to use relational database management system (RDBMS) store and manage spatial data. Designed and implemented based on. NET platform ArcSDE vector data access C++ Library. These classes by the Trust and Non-Hosted two-tier design, data access functions hosted by the category of non-ArcSDE C API calls to achieve, hosting category unmanaged public functions, can be any. NET-compatible programming language call.