基于GIS技术的城市3维景观动态仿真技术研究

虚拟城市是3维城市地理信息系统研究的前沿领域,为此首先对如何建立城市3维景观进行了初步的探讨研究,同时概述了城市3维仿真的发展概况和基本原理;然后分析了建立城市3维景观的两种方法路线;接着重点介绍了3维场景的建模、动态仿真和实时驱动的实现方法,并提出了城市3维景观动态仿真技术的作用、意义和发展前景;最后总结了城市3维仿真与GIS结合应用的可能性和发展方向,并制作出了城市3维景观动态仿真的应用实例。

The Research of Three-dimension City Landscape Dynamic Simulation Based on GIS Technology

Virtual-reality city (VR city) is one of the most important technologies in 3D urban GIS. This paper present how to establish city landscape of three-dimension, generalize the development of general situation and basic principle of city 3D simulation, and analyze two kinds of methods of the establishment of city landscape of three-dimension. Then we introduce the methods of 3D scenes of establishing dynamic simulation and real-time driving, and put forward the function, meaning and development foreground of the city landscape of three-dimension dynamic simulation technology. Finally, we summarize the possibility and direction of development of combining city 3D simulation and GIS, and give an example of city landscape of three-dimension dynamic simulation.