Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (3): 67-68.DOI: 10.3778/j.issn.1002-8331.2010.03.020

• 研发、设计、测试 • Previous Articles     Next Articles

Distribution and visualization of geospatial information based on mobile GIS

ZHANG Hai-tao1,2   

  1. 1.College of Telecommunication and Information Engineering,Nanjing University of Posts and Communications,Nanjing 210003,China
    2.Jiangsu Provincial Key Lab of GISC,Nanjing Normal University,Nanjing 210097,China
  • Received:2008-10-23 Revised:2008-12-29 Online:2010-01-21 Published:2010-01-21
  • Contact: ZHANG Hai-tao

移动GIS的地理空间信息分发和可视化

张海涛1,2   

  1. 1.南京邮电大学 通信与信息工程学院,南京 210003
    2.南京师范大学 地理信息科学江苏省重点实验室,南京 210097
  • 通讯作者: 张海涛

Abstract: With the development of mobile communications and wireless Internet technology,people can get information needed at any time and any where from mobile Internet.As the mobile devices including cell phone,PDA,as well as in-vehicle terminals,etc,which are heterogeneous,then the standard methods to describe mobile GIS information on expression must be developed.Presently,Scalable Vector Graphics(SVG) is an important standard to express spatial information,and compressed version of SVG (Mobile SVG) can be used in mobile GIS systems.Based on the analysis of mapping of spatial information and SVG tags,the paper designs the generation and rendering method of SVG based on pull mode.Experimental results show that the method presented in the paper has better performance on expression spatial information,and solve the issue of diversification mobile information services.

Key words: mobile Geographic Information System(GIS), scalable vector graphics, visualization

摘要: 随着移动通讯以及无线互联网技术的发展,人们可以随时随地从移动互联网得到任何信息。移动客户端(蜂窝电话,PDA以及车载终端等)的异构,要求移动GIS在空间信息的表达上必须采用开发的标准描述形式。可缩放矢量图形(SVG)是目前表达空间信息的一个重要标准,Mobile SVG可用于移动GIS系统中空间信息的表达。在分析空间信息和SVG标记之间映射关系的基础上,设计了SVG表达的空间信息的生成方法以及利用拉模式的解析与渲染方法。实验结果表明:采用SVG表达空间信息的方法具有较好性能,能够解决移动空间信息服务多样化的问题。

关键词: 移动地理信息系统, 可缩放向量图形, 可视化

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