大范围城市VR仿真系统的研究与实现

讨论了一种构建大范围城市VR仿真系统的新方法,它摒弃了传统的软件平台和方法,基于四种数据源,即数字高程模型(DEM)、数字正射影像(DOM)、数字线划图(DLG)、数字模型(DM),同时结合VRMap软件平台,利用虚拟现实技术实现了整个城市的真实再现,最终构建并实现了整个城市的VR仿真系统。它同时有效解决了采用传统的软件平台和方法来进行城市VR仿真系统构建所存在的无法支持大数据量、系统开放性差、实现技术难度大、价格昂贵等缺点,为城市规划和城市的可持续发展提供了可靠保障。

Study on Large-scale City VR Simulation System and Its Realization

Giving up to the traditional software platform and method,a new method to construct the large-scale VR simulation system was discussed based on four data sources,which was named Digital Elevation Model(DEM),Digital Orthophoto Map(DOM),Digital Line Graphic(DLG),Digital Model(DM) and applied with VRMap software platform.It not only can be used to rebuilt the true landscape of the whole city based on virtual reality technology,but also construct the city VR simulation system in the end.This new method overcomes the difficulties of the traditional software platform and method,such as unsupported relative amount of data,bad openness of the system,big difficulty of the technology and large price etc.,which provides more reliable assurance for city planning and sustainable development of the cities.