【摘要】 虚拟现实地理信息系统(VR-GIS)是一门综合虚拟现实和地理信息系统特征的新型技术,以此为基础构建的城市数字防洪系统在防洪决策中发挥了积极的辅助作用。本文以哈尔滨城区段三维数字防洪系统的开发为背景, 探讨了VR-GIS应用于城市数字防洪的关键技术及其实现方法,包括防洪三维虚拟场景的构建技术,仿真数据库的建立与联合查询,洪水动态模拟等方面的相关技术和实现方法,为数字防洪系统提供了基础研究平台。更多还原

【Abstract】 VR-GIS is a kind of new technology which integrates the characteristics of virtual reality with GIS. Digital flood control system of city based on VR-GIS is playing an important role in decision-making. In light of the 3D-system development of flood control in Harbin, this paper discussed some key problems about digital flood control system developed with VR-GIS, including 3D scene construction, database construction, flood simulation, etc., which provided a research platform for digital flood control system.更多还原