基于MGE的数字地图制图系统若干关键技术

本文在综述数字地图技术功能、特征、发展现状的基础上,介绍了ＭＧＥ数字地图制图系统的体系结构、技术流程和特点,进而从地图数据输入/数字化技术(包括地图的扫描输入、数字影像数据的输入处理、航摄资料的立体数字化、地图/ＧＩＳ数据库的提取４种)、地图色彩库和符号库的制作、地图组版和分色制版关键技术(分为一般地图、影像地图、图－文－图片混排地图等几种类型地图的组版和分色制版,以及一些特殊制图效果的实现技术等)、印刷地图与电子地图的互相转换等方面阐述了基于ＭＧＥ的数字地图制图系统的若干关键技术问题。这些技术对于数字地图环境的地图设计、编辑、印前处理等许多方面都有参考作用。最后,本文对于数字地图一体化的技术进行了展望。

Some Key Technologies of MGE-based Digital Mapping System

On the bases of summarizing the functions, features and current status of digital map technologies, this paper analyzed the structure, technical workflow and characteristics of MGE digital mapping system. Then, the authors expounded some key technologies of MGE-based digital mapping system, such as data input and digitizing, color base and symbol base generation, map editing and color separation, as well as mutual conversion between printed maps and electronic maps. These technologies are very important to map designing, editing, plating, etc. Finally, the future of digital map integrated system are foreseen.