1:300万中华人民共和国地理图的研制

与传统的手工制图相比,利用计算机来进行地图的生产和制作大大地提高了工作效率,减轻了制图者的劳动强度,实现了地图的数字化和信息化。但是,利用计算机进行地图制作,其工艺流程与传统的流程有诸多不同之处,另外,还涉及计算机图形图像处理方面的若干关键技术。本文介绍了1∶300万《中华人民共和国地理图》的制作经验、基本思想、表示内容和表示方法,叙述了地貌表示方法的选择及计算机辅助下的整体实现过程,以及数字制图工艺流程,并就大型挂图的制作经验进行了探讨。

The Compilation and Production of "The Geographic Map of the People's Republic of China"

Comparing with traditional handcraft of mapping, to produce maps using computer can advance the work efficiency consumedly, relieve map-fabricants' labor intensity, make map digital and provide much more information. So,we say, great changes have taken place in mapping since the introduction of computeraided cartography. However, there are many differences in technological flows of mapping between computer mapping and artificial mapping, and some key technologies of computer graphics and images processing are also involved.Based on compilation and production of "The Geographic Map of the People's Republic of China", this paper introduced the main idea and the main content and the way of selecting and dealing with elements,and discussed the process of compiling and the experience of producing wall map, especially, the geomorphologic representation method for 1︰3 000 000 scale "The Geographic Map of the People's Republic of China". The selection of the relief method and the production process aided by computer.