摘要
空间数据是GIS的主要研究和表示的对象,其质量的好坏及其在GIS中的正确表示是GIS工程建设中最重要和最基本的问题。文中运用模糊分析学的理论和方法,在系统地分析了GIS空间数据属性不确定性的基础上,提出了模糊关系数据模型,并探讨了其相应的基本操作和运算的原理和方法,对GIS的研究和应用具有一定的实用价值。
Spatial data are the main objects in representation and research in Geographical Information System,and its quality as well as its correct representation in GIS is very important and the most fundamental issue in GIS′s engineering construction.In this paper,based on systematic analyzing uncerainties of attribute in spatial data ,a fuzzy relation data model is given by the application of fuzzy mathematical method.The principle and methods of its related basic operation and algorithm are also discussed.All of these are applicable worthy for the research and application in GIS.
出处
《西安工程学院学报》
1998年第1期67-71,共5页
Journal of Xi'an Engineering University
基金
地矿部"九五"攻关课题
关键词
空间数据
属性不确定性
模糊运算
GIS
Spatial data,Uncertainty of attribute,Fuzzy relation data model,Fuzzy operation,Fuzzy algorithm