摘要
1 引言长期以来,地理信息系统(GIS)技术得到了稳定和快速的发展,在空间信息的采集、建模、管理和分析等方面取得了大量的成果。由于空间信息模型是GIS研究的基础,许多研究者对空间信息模型进行了深入研究。空间信息模型可以分为两类:基于域(Field-based)的模型和基于对象(Object-based)的模型。
The field-based model and object-based model are two classes of spatial information models. Many applications require that the two models should be integrated together. However,the integration of these two models causes many problems from high-level modeling,through data structure to system implementation. Based on investigating the problems in the process of integration,we propose an object-oriented approach for the integrated model in conceptual data model level,which solve many problems existing in integration.
出处
《计算机科学》
CSCD
北大核心
2000年第6期91-94,21,共5页
Computer Science
关键词
GIS
面向对象
数据模型
域
对象
集成
Filde-based model,Object-based model,Object-oriented model,GIS
