比较三种不同的因特网空间数据发布方法
收稿日期: 2002-07-20
修回日期: 2002-10-20
网络出版日期: 2002-12-25
基金资助
中国科学院知识创新工程项目 (KZCX2-308-3-7)；中科院寒区旱区环境与工程研究所知识创新工程项目(CACX2100018)
Comparison of Three Different Methods to Distribute Spatial Data on the Internet
Received date: 2002-07-20
Revised date: 2002-10-20
Online published: 2002-12-25
Supported by
Knowledge Innovation Project of Chinese Academy of Sciences, No. KZCX2-308-3-7; Knowledge Innovation Project of Cold and Arid Regions Environmental and Engineering Research Institute of CAS, No.CACX2100018
利用DIAL (Data and Information Access Link)、Jshape和IMS (Internet Map Server) 等3种WebGIS工具分别发布黑河流域数字高程、土地利用等专题数据，并在此基础上对3种方法进行对比，探讨因特网环境下空间数据发布的最佳方法。通过对这3种空间数据发布方法的比较，我们得出以下结论：MapObject IMS是发布ArcView shape格式和Arc/INFO Coverage格式矢量图的最佳工具，对于网格数据的发布无能为力；Jshape适合于发布小数据量、简单的矢量图；DIAL工具能很好的支持网格数据的空间发布，支持HDF数据格式，并且支持元数据。所以，DIAL是一种理想的空间数据发布工具。
黄春林,李新 . 比较三种不同的因特网空间数据发布方法[J]. 地理学报, 2002 , 57(7s) : 44 -51 . DOI: 10.11821/xb20027s007
In order to find the best way of distributing spatial data on internet, we distribute the thematic data of Heihe drainage area based on three different WebGIS tools, i.e., DIAL, IMS and Jshape. Compared to these three methods, we conclude that MapObject IMS is a good method to distribute vector map such as ESRI's ArcView shape file and ArcInfo Coverage file. But since there are a lot of remote sensing image data and digital elevation model (DEM) data in these areas, MapObject IMS does not have the capability of distributing grid data. Jshape is only convenient to distribute simple and small vector map. However, DIAL is a very useful tool for distributing grid data. Because of DIAL's effectiveness and compatibility with the well-organized data format HDF, we think that it is the suitable choice to publish the earth scientific dataset by using DIAL on the Internet.
Key words： Heihe drainage basin; WebGIS; spatial data; DIAL; Mapobjects IMS; Jshape
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