利用数字化技术采集公路地形数据的研究

为了用数字地图代替纸质地图,从中采集地形数据进行公路设计,提高设计工作效率和设计成果合理性。利用矢量化技术,建立数值地形模型,计算任意点的地面高程,实现从数字化地形图上采集路线设计所需要的大量地形数据;在此基础上,利用纬地道路设计软件,进行道路的平纵横设计,进而生成道路三维透视图,优化路线方案。该技术的研究对路线设计效果可视化,实现路线优化设计具有积极意义。

Study on the Road Terrain Data Collection using Digital Technology

In order to replace paper maps with digital maps, and collect a large amount of terrain data from digitized terrain maps for highway design, as well as improve design efficiency and rationality, vector technology was applied to establish digital terrain mod- els and compute the surface elevation of any point. On the basis of that, the authors used HintCAD road design software to pefform the plane-vertical-cross design and then generate 3D road perspective, so the route plan can be optimized. The study on the digital tech- nology has positive significance on the visualization and optimization of road design.