摘要
目前普遍使用的基于图层的空间数据库模型存在许多问题。基于特征的空间数据库模型是一种新的空间数据存储模式,它在很大程度上代表了GIS的发展方向。采用超图数据模型分析、设计和描述土地利用特征在概念和逻辑层次的提取与定义,建立土地特征分类体系,进行基于特征的土地利用空间数据库建模。
Layer based spatial database model is widely used now, which consequently causes some difficult problems. The feature based spatial database model is new spatial data storage mode, reflecting the development direction of GIS to great extent in future. In this paper,Hypergraph Based Data Model （HI3DM） and object- oriented technology are applied in the process of building feature based spatial database model. In the process of modeling, the geographic features in land use management are abstracted, generalized and described. Through analyzing relations and sub- relations among different geographic features, the classification scheme of land use featare is established. And the conceptual and logical hierarchy definition of land use feature is presented. At last, feature based land use spatial database is designed and implemented. The result shows that the feature based spatial database model can express the land use information full and exactly, which supplies better support in managing and storing land use information.
出处
《地理与地理信息科学》
CSCD
北大核心
2006年第2期55-58,共4页
Geography and Geo-Information Science
基金
国家教学科研奖励计划"青年教师奖"资助项目
关键词
GIS
空间数据库模型
基于特征
超图数据模型
GIS
spatial database model
feature - based
Hypergraph Based Data Model （HBDM）
