调水工程变比例三维视景仿真系统构建技术

Variable Scale Method of 3D Visual Simulation for Long Distance Water Diversion Projects

以长距离输水工程为背景,重点研究了构建三维大地形视景仿真系统的实现技术。针对视景仿真技术在水利领域应用要求的特点,提出了变地形比例的处理方法,并在VC++平台下编译开发了一个虚拟现实的应用程序。实验结果表明,通过大地形的生成、变比例拉伸和调度优化,系统能够在普通PC机上流畅的实时漫游并能弥补仿真中视觉局限的不足,从而更好地为科学选线和工程决策提供依据。

A variable-scale method of 3D visual simulation was proposed for long distance water diversion projects with a vast terrain, Its character is that the scale of the elevation of the simulated object is different from that of the plane, which can make up the deficiencies of visual localization. Thus a virtual reality simulation system based on VC＋＋ was developed. The experiments show that the system with a vast terrain can be real time navigated on a regular personal computer, which is helpful for the scientific route selection and decision.