基于对象的数字地图存储管理技术  

Store and Management Techniques for Digital Map Based on Object

作　　者：王立松[1] 陈兵[1] 林钧海[1] 秦小麟[1] 

机构地区：[1]南京航空航天大学计算机科学与工程系,南京210016

出　　处：《南京航空航天大学学报》2002年第1期45-49,共5页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：针对数字地图数据的特点 ,采用面向对象技术与关系数据库技术相结合的方法 ,构造了一个基于对象的数字地图存储管理的结构 ,由此实现了一个数字地图的存储管理系统。系统中对传统关系进行了扩展 ,使系统能存储数字地图数据 ;引入面向对象的方法 ,使系统具有表达和描述复杂对象的能力。Digital map is a typically complicated object for store and management in database, traditional relational database doesn′t well describe and store this complicated object, in despite of the steady theoretical foundation and mature application developing technique of relational database. Object oriented method can be used to manage complex objects, such as digital map. Thought object oriented method is used for describing the digital map and other complicated objects, the technique of object oriented database (OODB) is not mature in theory and realization. This paper puts forward a new digital map using object oriented method, while storing the object using relational method. So, a store and management system of digital map is realized on the bases of relational database and object oriented methods.

关 键 词：数据模型 数字地图数据库系统 存储管理系统 面向对象数据库 

分 类 号：P28[天文地球—地图制图学与地理信息工程] TP311.13[天文地球—测绘科学与技术]