基于HLA的三维虚拟环境

HLA-Based3D Virtual Environment

在分析了HLA体系结构及运行支撑框架(RTI)的基础上,提出了一个基于HLA的三维虚拟环境的设计和实现方案。阐明了此类系统的设计方法,着重分析了系统实现中涉及的仿真对象模型、信息交互机制、程序控制逻辑、坐标转换、实时性等关键技术问题和解决方案。最后在使用WindowsNT4.0的PIII高档微机平台上实现了该系统。实验表明,在综合分布交互系统SSS中,该分系统可实现与其它分系统的正确交互,场景刷新速率最高可达20帧/秒,基本满足实时性要求。

On the basis of analyzing HLA architecture and its Run Time Infrastructure(RTI ),This paper presents the design and implementation scheme of an HLA-Based3D Virtual Environment ,introduces the design method of this kind of system.It analyze s some key technologies in its implementation,such as simulation object model,information interac-tion mechanism,program execution logic,coordinates conversion and real time problem.And gives solutions to these problems.The authors implemented this3D Virtual Battlefield Environment on PIII PC that use Windows NT4.0opera-tion system.The experiment demonstrate that this HLA-based3D virtual environment can interact with other simulation applications correctly in Synthetic Simulation System which is an distributed interactive simulation system.The frame re-fresh rate of scene can reach up to20frames per second.