【摘要】 对W3C组织发布的一个用于在Internet上表示图形的标准SVG进行了扩展,产生一个新的标记语言GISML,解决了在Internet上有效表示GIS对象的问题。同时以三层模型为基础,介绍了GISML如何使用实现网上的查询操作。更多还原

【Abstract】 By extending the standard SVG, which is released by W3C organization to denote graphics on Internet, this article proposes a new markup language, GISML. It resolves the problem. Based on a three-tied model, a new method of querying online by GISML is also introduced.更多还原