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计算机工程 ›› 2009, Vol. 35 ›› Issue (24): 268-270. doi: 10.3969/j.issn.1000-3428.2009.24.090

• 开发研究与设计技术 • 上一篇    下一篇

基于SVG的空间定位模型

陈春芳1,李 岩1,2   

  1. (1. 华南师范大学计算机学院,广州 510631;2. 华南师范大学空间信息技术与应用研究中心,广州 510631)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-12-20 发布日期:2009-12-20

Spatial Location Model Based on SVG

CHEN Chun-fang1, LI Yan1,2   

  1. (1. Institute of Computer, South China Normal University, Guangzhou 510631; 2. Research Center of Spatial Information Technology and Aplication, South China Normal University, Guangzhou 510631)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-12-20 Published:2009-12-20

摘要: 空间定位是WebGIS的重要功能之一,可伸缩矢量图形(SVG)被认为是下一代WebGIS的重要开发工具,但它缺乏对空间定位信息的完整表达,无法在SVG地图上直接实现空间定位和转换。针对该问题,提出基于SVG的空间定位表达模型,定义形式化表达,设计并实现开放式、跨平台、可复用的SVG空间定位功能模块。应用实例证明,该模型能得到良好的可视化定位效果和精确的空间定位。

关键词: 可伸缩矢量图形, 空间定位, 功能重用

Abstract: Spatial location is one of the most important functions in WebGIS. Scalable Vector Graphic(SVG) is considered an important developing tool of WebGIS, but it is lack of complete representation in spatial location, SVG can not realize spatial location and transformation in SVG map directly. Aiming at these problems, this paper proposes a SVG-based spatial location model and defines its formal representation. It designs and implements SVG spatial location function module, which is open, cross-platform and reusable. Applied example proves that the model can get good visualization location effect and accurate spatial location.

Key words: Scalable Vector Graphic(SVG), spatial location, function reuse

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