微机地图图形工作站上地图数字化子系统的设计与实现

借助于微型计算机而建立的地图图形工作站其目的在于完成数字化地图生产,即从地图数据的获取、管理、编辑、更新到图形输出等一系列过程。而地图数字化子系统则是该工作站上完成数据获取这一最初也是最重要过程的软件系统。文中介绍了笔者研制的地图图形工作站上的地图数字化子系统。该系统是在自行设计和研制的地图图形工作站的总框架下完成的,现已具备数字地图产业化生产能力,能有效地配合工作站完成数字地图的生产。同时,该系统对于不同的数据获取途径以及诸如我国地(形)图的独特要求(如汉字注记的处理)等方面有良好的适应性。

The Design and Realization of Map Digitization System on Micro-computer Based Map Graphic Workstation

main purpose to develop a map graphic work station on widely used micro-com-puter is that by it the whole process of map data from capturing, managing,editing,updatingto graphic outputing can be realized. Map Digitization Systen (MDS)is the software systemto deal with the intial and also the most important process. In this paper, the authors intro-duce a MDS on a micro-computer based graphic workstation that has be qualitified for theproduction of digital maps. Because the system is designed totally independently and in thegeneral frame of the map graphic workstaion,the capturing and managing and other processof map data is in integral manner,in which the production of digital map can be fulfilledconveniently. At the same time,the system is flexible for function extension and widely suit- able for the data from different digitization device and with different information character-istics(e. g.,the process of chinese character on the map).