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《Journal of Chongqing University of Posts and Telecommunications》 2004-05
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Scale-based spatial data model for GIS

WEI Zu kuan (College of Computer Science & Engineering,University of Electronic Science and Technology of China (UESTC),Chengdu 610054, P.R.China)  
Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer based model. Furthermore, in Web Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale based model. In this model we represent maps in three levels: scale view, block, and spatial object, and organize the maps in a set of map layers, named Scale View, which associates some given scales. Lastly, a prototype Web Based GIS using the proposed spatial data representation is described briefly.
【CateGory Index】: P208
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 LV Huaxin1, Li Lin1, Zhai Liang1;The Organization And Display Of Multi-scale Map Data In Multimedia Electronic Atlas[J];Beijing Surveying and Mapping;2005-02
2 CHEN Liang,TAO Hong-cai(School of Information Science & Technology,SWJTU,Chengdu 610031,China);Research and application of Mashup based on REST-style[J];Journal of Chengdu University of Information Technology;2008-05
3 FENG Yan,SHI Yi-min(Tongji University,Shanghai200092,China);Analysis of Open GIS and Interoperability Technology[J];Engineering of Surveying and Mapping;2002-04
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6 LI Xin-tong1,2, HE Jian-bang1ute of Geographic Scienceand Natural Resource Research, Beijing 100101,China; 2.Institute of Geographic Science, Fujian Normal University, Fuzhou 350007, China) ;GIS Interoperability and OGC Specifications[J];Geomatics World;2003-05
7 WANG Juan-le, YOU Song-cai, XIE Chuan-jie (Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing 100101,China);Study on the Application of Metadata Techniques in the Geosciences Data Clearinghouse[J];Geomatics World;2005-02
8 GONG Jian-ya, GAO Wen-xiu(State Key Laboratory of Information Engineering in Surveying, mapping and Remote Sensing,Wuhan University, Wuhan 430079, China);Sharing and Interoperability of Geospatial Information[J];Geomatics World;2006-03
9 XU Chun jie, ZOU Le jun, SHEN Xiao hua;Web Service Based WebGIS[J];Bulletin of Surveying and Mapping;2003-01
10 LIU Xin-gui,SUN Qun,HUANG Ya-juan,LI Wen;The Way to Pick up Speed of Electronic Map[J];Bulletin of Surveying and Mapping;2004-01
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