江西科学2017，Vol.35Issue(2)：305-309,5.DOI:10.13990/j.issn1001-3679.2017.02.027
城轨线路三维可视化环境中冲突检测算法的研究
The Algorithm Research of Urban RailLine Conflict in 3D Visualization Environment
摘要
Abstract
In this paper,a method of collision detection was introduced,and the theory of three-dimensional modeling of underground buildings and urban rail lines is realized by rapidly extracting the buildings that are in conflict with the track area in the 3D visualization environment.According to the characteristics of the buildings,CSG and B-rep were used to model the buildings based on CSG and B-rep.On the basis of studying the modeling characteristics,this paper proposes to use the AABB level bounding volume method to detect the first conflict and improve the detection efficiency,and then use the triangular rapid intersection detection algorithm to detect the conflict,and finally determine whether the building collides with the track area.Through the algorithm of this paper,we can quickly extract buildings colliding with the influence area of the track line,so as to help the line design,choose the best route and calculate the cost of land acquisition in the three-dimensional visualization environment.关键词
城轨线路/三维可视化/CSG/B-rep/冲突检测算法Key words
CSG/B-rep/urban rail line/3D visualization/conflict detection分类
天文与地球科学引用本文复制引用
罗海玲,周世健..城轨线路三维可视化环境中冲突检测算法的研究[J].江西科学,2017,35(2):305-309,5.基金项目
国家自然科学基金资助项目(41374007). （41374007）
