解析测图仪测图的一些实践与研究

THE PRACTICE AND RESEARCH OF ANALYTICAL PLOTTING SYSTEM

解析测图仪和机助测图系统以及数字地面模型(D.T.M.)数据库,可以按照人们的意图去调用地图信息,提供各种地质、地貌等数据和图件。 我国已有一定数量的进口带有D、T,M。数据库的解析测图仪,但在不规则地区进行随机点的高程内插却殊不多见,本文根据自己的实践,提出一些方法,以便充分发挥仪器作用。

With the appearance of the analytical plotting system and the computer aided plotting system, the number of their users is increased rapidly in our country.A lot of production and research units are trying to find out and to open up their new functions and new uses,to enable them to serve the production well, thus reducing the labour intensity and improving the efficiency.Now, many units have set up D.T.M.data bank and go ahead in the direction of digital plotting. This paper briefly introduces the basic functions and the practical uses of the D.T.M.interpolation programme imported with the analytical plotting system from other countries.According to the production practice and the theory of the writer's own, the paper is emphasizing on three respects, the recommendation of 'which is as follows. 1.Choose the registration method properly. Through the choice and the practical analysis of the two recording methods: the C-100 series made by OPTON. company of West Germany and the AC.BC series made by WILD company of Switzerland, this paper recounts the adaptavility of this instrument. 2. Judge the density of the recorded data properly. Through discussing the datum density theoretically and studying the improvement plan,the writer explains how to make the instrument more ideal and more practical. 3.Add the territorial frame points occasionally. This paper shows some experiences about the intercalatim points and the use of the occasional interpolation recording method.