基于特征断面的管状地物三维建模技术及其数据结构研究

地下管网的建模技术是地下管网信息系统开发中的核心技术,目前的管网模型多数只停留在二维水平上,在表述管线之间的空间拓扑关系和位置关系时存在不足.针对这个问题提出了1种基于特征断面的管状地物三维建模技术,并对三维建模过程中两相邻的直线段之间的倒圆角算法进行了研究.最后用程序代码的方式介绍了这三维模型的数据结构.

Study on 3D Modeling Technology and Data Structure of Tubular Ground Object based on Feature Section

Underground pipe network modeling technology is a core technology in developing of underground pipe network information system. Because present pipe network model rested mostly on 2D level, so there is the lack when predicating spatial topological relation and ublety among pipelines. In allusion to this problem, this paper brings forward a kind of 3D modeling technology of tubular ground object based on feature section, and discusses the fillet algorithm of two adjacent straight lines in 3D modeling process. At last the paper introduces data structure of 3D modeling with program code method.