摘要
由于大面积虚拟景观的三维模型数据过于庞大,从选择建模工具、降低模型的冗余度和复杂度、降低模型文件大小三个方面对建模过程中三维模型的优化方法进行了研究。给出了虚拟景观漫游系统的体系结构,从三维模型数据转换、漫游路径和视角设计、漫游系统集成等方面阐述漫游系统的实现过程,给出了数据压缩和转换算法。最后在Visual C++软件平台上实现了大数据量的虚拟校园漫游系统,该系统具有很好实时交互性和可扩展性。
As the data of 3D model in large-scale virtual landscape was too huge,the optimization methods of 3D model were researched from three aspects-selection of modeling tools,reduction in redundancy and complexity of model and compression of model file.Then,a framework of large-scale virtual landscape＇s navigation system was proposed,and the realization process of navigation system was expounded through the data conversion of 3D model,the design of navigation path and the integration of navigation system.At the same time,the data compression and conversion algorithm was put forward.Finally,a large-scale virtual campus navigation system was achieved in Visual C＋＋ 6.0 software platform.The system has a very well real-time interactivity and scalability.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2009年第6期1654-1657,共4页
Journal of System Simulation
基金
国家自然科学基金(50775079)
广东省自然基金(07006692,07300720,05006661)
广东省科技攻关(2007B010200068)
天津市教育科学“十一五”重点规划课题(ZGC020)
教育部博士点基金(200805640009)
关键词
虚拟景观
大数据量
三维模型优化
数据转换
漫游
virtual landscape
large-scale
3D model optimization
data conversion
navigation
