摘要
分析了目前空间数据模型存在的问题和局限性，介绍了基于点、线、面的实体—类别—关系概念数据模型及其逻辑数据模型——一种扩展的网络数据模型和栅格矢量数据的集成式管理方法，及其在拓扑空间关系描述与表达方面的研究工作．分析了现有的商业化地理信息系统（ＧＩＳ）工具提供的基本空间分析功能的局限性，针对具体的城市问题，提出了城市ＧＩＳ空间分析模型的基本设计方法和空间数据的采集与更新．
This paper discusses some fundamental problems of urban GIS and presents the author’s research activities. Limitations of current conceptual, logical, physical spatial data models in urban GIS are examined in the light of the authors' research work including the development of an E C R conceptual data model—an extended network data model (logical model), a special GIS tool of integrated management of raster and vector data, and description and representation of topological spatial relationship. Basic methods for the development of urban GIS spatial models are discussed. In addition, the research also involves collecting and updating urban spatial information from remotely sensed urban images.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
1998年第2期121-124,共4页
Acta Scientiarum Naturalium Universitatis Sunyatseni
