地质图件数据库建库的新概念和新思维——浅谈贯彻ISO/DIS 19117地理信息图示表达国际标准的体会

New concept and idea of the establishment of the geological map database——An understanding of the international standard of the "ISO/DIS 19117 Geographic information-Portrayal".

在建立全国1∶250万地质图数据库工作中贯彻执行了ISO/DIS19117地理信息图示表达(Geographic information-Portray-al)国际标准,实现了图示属性与数据库和软件的完全脱离,从而达到了彻底甩掉系统库(子图库、符号库、线型库、色标库、花纹库、网纹库)的目标,大大简化了建库工作,并从根本上解决了图元属性与图示属性不一致的矛盾。

In the process of the establishment of the 1：2500000 national geological map database, the authors implemented the international standard of the ＂ISO/DIS 19117 Geographic information-Portrayal＂ and realized complete separation of map display attributes from the database and software, thus attaining the target of casting away the system libraries （subfigures library, symbolic library, line font library, color code library, pattern fill library and so on）, greatly simplifying the establishment of the database and thoroughly solving the incongruity of map element attributes with map display attributes in a database.