基于CCGIS的三维虚拟校园建模仿真

3D Modeling Simulation of Virtual Campus Based on CCGIS

文章以东北林业大学为例,以带高程信息的二维矢量数据和用数码相机到实地拍摄的纹理数据为基础,讨论了利用CCGIS5.0平台进行三维虚拟校园建模仿真的过程,重点阐述了CCGIS系列软件中VRModel模块三维建模仿真的关键技术和方法,以及在应用VRModel模块建模和纹理映射过程中的技巧,最终实现了交互式虚拟漫游系统。实践证明,这种建模方法费用低廉、建模精度高、纹理表达真实、建模快捷,是目前较为理想的一种三维建模途径,此方法在中小区域(校园、小区等)的三维建模仿真中更显出其优越性,将得到进一步的推广和应用。

This article discussed the modeling simulation process of 3D virtual campus that took advantage of CCGIS5.0 platform,taking two-dimensional vector data with elevation information and texture data which the digital camera photographed as a foundation.It also elaborated in the essential technology and method of the VRModel module＇s three dimensional modeling simulation in series of CCGIS softwares,as well as elaborated in skills of the process of applying the VRModel module modeling and texture mapping.Eventually,it achieved an interactive virtual roaming system.Practice shows,proved that this method of low-cost,high-precision modeling,texture to convey the truth,modeling fast,is the ideal way to a three-dimensional modeling,this method in small and medium-sized region of 3D modeling and simulation,such as campuses,community is more demonstrated its superiority,which 3D modeling and simulation technology will be further promotion and application.