KING GEORGE ISLAND SPATIAL DATA MODEL

查看全文 作　　者：CHEN Nengcheng GONG Jianya

出　　处：《Geo-Spatial Information Science》索引2001年第4卷第2期,共7页

基　　金：ProjectsupportedbyCNSFforLIESMARSGrant (No .9871 0 66) 摘　　要：Distribution,interoperability,interactivity,component are four main features of distributed GIS.Based on the principle of hypermap,hypermedia and distributed database,the paper comes up with a kind of distributed spatial data model which is in accordance with those features of distributed GIS.The model takes catalog service as the outline of spatial information globalization,and defines data structure of hypermap node in different level.Based on the model,it is feasible to manage and process distributed spatial information,and integrate multi_source,heterogeneous spatial data into a framework.Traditionally,to retrieve and access spatial data via Internet is only by theme or map name.With the concept of the model,it is possible to retrieve,load,and link spatial data by vector_based graphics on the Internet. 关键词：乔治国王岛分发 GIS hypermap 数据模型互操作性

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KING GEORGE ISLAND SPATIAL DATA MODEL

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