基于CityEngine的城市三维模型构建方法与问题分析  

Urban 3D Modeling Method Based on CityEngine and Its Problem Analysis

作　　者：段雅萍[1] 郝连秀[2] 王瑞富[1] 李家贵[1] 

机构地区：[1]山东科技大学测绘科学与工程系学院,山东青岛266590 [2]国家测绘地理信息局第二地理信息制图院,黑龙江哈尔滨150081

出　　处：《地理空间信息》2017年第5期75-77,共3页Geospatial Information

基　　金：全球变化与海气相互作用专项资助项目(GASI-02-YG-BC01)

摘　　要：以传统手工建模方式为主的建模手段存在周期长、工作量大、成本高等缺点,制约了数字城市的发展。在分析数字城市和三维GIS的基础上,设计了基于CityEngine的三维建模解决方案,通过程序化的规则实现了高效、批量建模,并总结了一套通用的建模技术流程。结合实际案例分析了建模过程中存在的问题,并从底图数据处理、建筑物纹理获取和模型表达优化等方面给出了相应解决方案,最后以青岛市唐岛湾地区为示范区进行了三维建模。The traditional manual modeling method has bottleneck problems which restricted the development of Digital City, mainly for the long cycle, large workload and high cost. Based on the analysis of Digital City and 3DGIS, we designed a 3D modeling solution based on CityEngine, used procedural rules to achieve efficient, batch modeling, and summed up a set of generalpurpose modeling technique process. On the basis of this, we analyzed the existing problems in the modeling process combined with actual cases, and gave corresponding solutions from the aspects of map data processing, building texture acquirement and model expression optimization.

关 键 词：CityEngine 三维建模 CGA规则 模型优化 批量 

分 类 号：P208[天文地球—地图制图学与地理信息工程]