我国电子地图研制的实践及其发展方向

The Study and Development of Electronic Maps in China

本文对我国电子地图的研制作了概述,并提出了今后发展方向。全文共分3个部分:(1)我国创作的已出版和制作的电子地图和电子地图集可区分阅读型、交互型和网络型3种;(2)介绍了面向对象的电子地图模型,建立电子地图图层创作模版和电子地图软件系统(EA-World)的开发,以及总结了电子地图设计的一些问题;(3)分析了电子地图今后研究方向.提出开展现代地图学理论研究,指导电子地图的创作,开展网络地图学研究,实现地图信息共享:以及进一步进行电子地图的数据模型和设计研究,提高电子地图创作质量。

The article summarizes the study of electronic maps and offers direction of development. It includs three sections. The first one, introduces the status of electronic map production. The electronic maps and atlases produced and published in China consist of three types, that is, reading type, interactive type and network type. The second one is about building system of electronic map. It introduces the model of electronic maps by adopting object-oriented approach; discusses how to establish the designing template of map layer and how to develop software system (EA-world) of electronic maps; and identifies some problems in designing electronic maps. The third one, points out the direction of development of electronic maps. it suggests to strengthen theoretic research in modern cartography in order to guide the production of electronic maps; to carry out study on web-cartography in order to share map information jointly; and to do more works in designing data model in order to improve the quality of electronic maps.