3D城市建模方法.pdfVIP

3D 城市建模方法 1 1, 2 1, 2 刘　凯, 　谭明金 , 　杨启亮 ( 1. , 210007; 2. , 210093) : 为了推进城市建模应用更好地普及和发展, 对数量庞 的城市建模方法群和相关技术, 从总体上进 行了梳理。采用从输入、处理与输出3 个环节考察系统的 一般方法, 提出一种新的描述3 城市建模技术与应 D 用的体系结构, 并建立完整的技术视图。基于图像等测量数据的真实城市建模和基于规则驱动过程的虚拟城 市建模两种类型, 考察现有建模方法与技术的必威体育精装版进展和存在的一些问题。在此基础上, 指出过程建模正逐 渐成为主流的建模方法及还有待于发展的内容。特别指出了有实时性要求的植物、雨雪、风化等自然景物以 及基于物理的快速建模是城市建模未来的重要应用方向。 : 3D 城市建模; 城市过程建模; 基于物理的建模; 城市云计算 : T P391 : A : 1009-3443( 2010) 04-0417-0 - Three dimensional urban modeling met hods 1 1, 2 1, 2 L I U K a i , T A N M ing -j in , YA N G Qi -liang ( 1. , . . . , 210007, ; Engineering Institute of Corps of Engineers PLA U niv of Sci Tech Nanjing China 2. Computer Department of Science and Technology, Nanjing University, Nanjing 210093, China) Abstract: To build a technically integrated view of urban modeling and its applications, a new architecture ( , of urban modeling methods called IPO view w as presented in terms of generic IPO input process and out- put) . Then urban modeling w as classified into two categories, i. e. , real city modeling based on measures such as imagery and virtual city modeling based on rule-driven procedures. Based on these tw o categories, , recent w orks in urban modeling w ere surveyed and their advancements and disadvantages w ere presented respectively . Procedural methods w ere proven to be the mainstream but some evolutions w ere required I