3维空间数据采集方法探讨

通过对地形3维空间数据在真实世界的位置表现研究，并借鉴国外已经开展的3维空间数据采集与应用的经验．以及对国内现行的国标分类代码与图式进行分析与研究，确定3维空间数据获取所需的核心要素的内容及采集方法。将3维地形要素分为几大类，对每一大类里面各要素的可获取性进行了详细的分析。同时为了兼顾出图的需要。对所需的2维地物要素采集进行了分析。

Research on the Capture Method of 3-D Spatial Data

By means of researching on the positional presentation of the 3-D spatial data in the real world, using the overseas experiences as reference and analyzing the National Standard of Specifications for Cartographic Symbols and Classification and Codes for the Topographic Maps, this paper provides a method of capturing the required core features of 3-D spatial data. In the meantime, for the convenience of printout, it also analyzes the capture method of 2-D topographic features.