在目前，三维数字地形图是一种较新的三维绘图技术，本文在阐述了三维数字地形图的概念和主要特征的基础上，分别从点方式个面方式两个层面以及针对图像扫描数字化技术，对三维空间数据的实时获取技术进行了相关分析。%3D digital topographic map is a relatively new 3D drawing technology at present, this paper ifrstly expounds the concept and main characteristics of three-dimensional digital topographic map, and analyze the 3D spatial data real-time acquisition technology respectively from two angle including the point mode,plane mode.and digital image scanning technology.
展开▼
