GIS的分层与特征的数据组织模式  

Layer and Feature: Two Ways to Organize Data in GIS

作　　者：马荣华[1] 戴锦芳[1] 

机构地区：[1]中国科学院南京地理与湖泊研究所,南京210008

出　　处：《地球信息科学》2003年第3期42-46,共5页Geo-information Science

摘　　要：数据组织是 GIS系统建设的基础和前提 ,认知方式、认知手段的变化 ,会带来认知结果的不同 ,形成了两种不同的数据组织方法 :(1 )基于分层的数据组织方法 ;(2 )基于特征的数据组织方法。文章分析了这两种数据组织方法的有关内容 ,并对它们进行了对比 ,认为基于特征的数据组织方法是第 4代 GIS的基础和核心 ,是Data organization is the foundation and precondition for GIS the building and development Changes in cognitive modes and cognitive means can generate different, results of cognition in the real world,i e , the layer based data organization and the feature based data organization The paper analyzes in detail the means of the layer based data organization from the point of view of cognition and computer, namely from the point of view of theory and technique The development of the former is limited by lots of shortcomings in essential So the means of feature based data organization got developed Its foundation is to classify the features Feature classification is based on the theory of cognitive classification and it must use the means of classifying the geographic information for reference The latter should be developed with the object oriented technique on the basis of the former But both of them answer the basic cognitive questions: where, what and when By means of analysis and comparison, the paper draws a conclusion that it is the key to implement the fourth generation GIS for the feature based data organization, which is a new direction in GIS development

关 键 词：GIS 分层 特征 数据组织模式 地理现象 地理数据 

分 类 号：P208[天文地球—地图制图学与地理信息工程] TP274[天文地球—测绘科学与技术]