大范围虚拟场景几何建模方法的研究

Research into geometrical modeling method in large-scale virtual scene

地形景观模型的三维可视化技术是时空一体化地理信息系统与虚拟现实中的关键技术之一。本文在ArcGIS生成的DEM数据基础上,着重讨论了采用叠加影像和房屋生成大范围三维地形的方法。

Three-dimensional（3D） visualization technique of terrain landscape is one of the key techniques of space-time integration geographic information system and virtual reality.This paper discusses the methodology for producing large-scale 3D terrain by using overlapping images and buildings on the basis of ArcGIS-made DEM data.