Design and Realization of ArcSDE Geometry Data Access Class
ArcSDE矢量数据访问类的设计与实现

ArcSDE is a tool that allows you to store and manage spatial data in your chosen Relation DataBase Management System (RDBMS). ArcSDE geometry data access class library of C++ based on Microsoft .NET platform is designed and realized. Classes are consisted of two tiers: managed tier and unmanaged tier. The unmanaged classes invoke ArcSDE C API to realize its function. The managed classes as an interface between the unmanaged classes and the outside application can be invoked by any type of programming language which is compatible with .NET framework.