当前GML的可视化主要是通过XSL实现GML到SVG的格式转换,但所生成的线框图达不到地理数据形象化与地图可视化的效果。该文在图示表达机制与XML技术的基础上,对基于XML的地理信息可视化方法进行了优化,构建了地图制图标记语言,设计了基于SVG的地图符号和基于XSL的抽象过程,在原型系统中实现了基于脚本语言的地图符号化与地图编辑功能。

Optimized Geographic Information Visualization Based on XMLYIN Zhang-cai~1,LI Lin~2(1.School of Resources & Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China; 2.School of Resource & Environment Science,Wuhan University,Wuhan 430079,China)The integrations of two kinds of methods: GML driven visualization mechanism and cartographic representation method.This paper presented an optimized geographic information visualization method based on XML,where a self-defined markup language based on XML was named MapMML which described the cartographic representation data.In prototype,GML was transformed into MapMML by XSLT;cartographic symbolization and cartographic edits were implemented by Javascript language.XML;SVG;XSLT;visualization