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计算机工程 ›› 2008, Vol. 34 ›› Issue (13): 248-250. doi: 10.3969/j.issn.1000-3428.2008.13.089

• 开发研究与设计技术 • 上一篇    下一篇

基于自定义协议的网络地理信息系统

谭 靖1,2,杨为民3,张百平1,万 利4   

  1. (1. 中国科学院地理科学与资源研究所,北京 100101;2. 中国科学院研究生院,北京 100039; 3. 西南林学院计算机与信息科学系,昆明 650224;4. 中国农业科学院农业资源与区划研究所,北京 100081)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-07-05 发布日期:2008-07-05

WebGIS Based on Self-defined Protocol

TAN Jing1,2, YANG Wei-min3, ZHANG Bai-ping1, WAN Li4   

  1. (1. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Science, Beijing 100101; 2. Graduate University of Chinese Academy of Science, Beijing 100039; 3. Department of Computer and Information Science, Southwest Forestry College, Kunming 650224; 4. Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-07-05 Published:2008-07-05

摘要: 探索基于自定义协议开发网络地理信息系统的方法。自定义一套工作于TCP/IP应用层的协议,基于该协议利用Winsock网络编程实现网络通信,基于组件GIS开发实现空间数据操作,并在通信接口中加入了自定义的通信可靠性和安全保障机制,实现了一个3层C/S结构的网络地理信息系统,验证了这种开发方式的可行性。

关键词: 自定义协议, 网络地理信息系统, 组件GIS, 客户端/服务器

Abstract: This paper proposes and implements a methodology for developing WebGIS. Key elements of the methodology include establishment of the self-defined protocol working on application layer of TCP/IP model, implementing communication between client and server based on the self-defined protocol by utlizing Winsock programming and realizing spatial data access interface based on COMGIS development. Based on these technologies, a WebGIS with C/S structure is implemented, andthe feasibility of the methodology is validated.

Key words: self-defined protocol, WebGIS, ComGIS, client/server

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