上海世博园区地下空间三维信息系统研究

Research on the Underground Space Three Dimensional Information System in Shanghai Expo

引入地下空间的概念,分析了3DGIS(三维地理信息系统)在城市地下空间中的应用现状,针对当前应用中遇到的问题,提出了一种集数据处理、模型构建、场景可视化和空间分析于一体的系统框架,并结合上海世博园区地下空间建设需求,分析了系统构建过程中的关键技术。实践证明,此系统可对种类繁多的地下空间信息进行统一管理,具有逼真的三维显示效果和丰富的空间分析功能,并支持用户功能的灵活扩展,具有很强的通用性。

analysis on current application of 3DGIS（ three dimensional geo-information system ） in city underground based on the concept of underground space. For the problems meted in the current practice, a system structure which gather the data processing, model creation, scene visibility and space analysis together was proposed. Combined with the need of underground construction in Shanghai Expo, the key technology during system creation was analyzed. The practice proved that, this system can manage different type of underground space information unified, and have living effect of three dimensional display and plentiful space analysis function. It support function expand agility for users, and is strong universally.