文章基本信息

标题：The Research of Transect-based Three-dimensional Road Model
本地全文：下载
作者：T. Luliang ; Li Qingquan
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2004
卷号：XXXV Part B5
页码：174-178
出版社：Copernicus Publications
摘要：With the rapid develop ment of 3D GIS, especially Computer Graphics ￡ Simulation and Virtual Reality, 3D GIS is applied in many fields (Li Deren, 2000). On the base of study the road elements and the existing thr ee-dimensional road data model, such as the standard road flight in the MultiGen Creator and the TIN-based partition model(Chen Jun, Sun Min, 1999), This paper put for ward the transect -based road modelling, resolve the modelling of the simplest road with two road transects, and fulfil the visualization of the road. OpenGL is applied as the tools of visualization. The map textur e technology ¤ LOD algorithm ¤ dynamic multi- differentiating texture technology are of benefit to the construction of 3D road GIS, and improve the speed of roaming and effective visualization. The authors study the combination of the 2D road digital map and 3D road scene, and the dynamic response between 2D road digital map and 3D road scene. Finally, base on the research of the transect-based road model, The authors develop the three-dimensional road geographic information system called Virtual Road ( VRoad ) , The VRoad does not only supply for road designer a set of tool which can turn the designed 2-dimensional r oad data into thr ee-dimensional road and the high road assistant function area in computer, but also supplies for the road management a set of tool which can realize the road real time and interactive roaming, high-efficiency management
关键词：GIS; Modelling; Sampling; Virtual Reality; Three-dimensional; Transect-based Road Model