列车运行仿真中地形视景的生成  

Generation of terrain visual in train driving simulation

作　　者：侯福生[1] 郎诚廉[1] 

机构地区：[1]同济大学电子与信息工程学院,上海200331

出　　处：《铁路计算机应用》2011年第11期1-3,7,共4页Railway Computer Application

摘　　要：地形实景模型的生成对于提高视景仿真的周边场景真实度具有重要影响。其关键技术包含获取高程数据,建立三角化地形模型和地形贴图等。本文利用Multigen Creator作为处理平台,以上海磁悬浮铁路作为仿真对象,对建立线路周边地形模型的各个环节进行详细的对比,提出优化方案,较好地提升了线路周边地形模型的精度和仿真度。The generation of terrain model played an important role in rail-vehicle driving simulation,and it contributed to improve the realistic appearance of surrounding scene in visual simulation.The key technologies included acquiring elevation data,setting triangulated terrain model and mapping the terrain texture.In this paper,Multigen Creator was for processing platform.Shanghai Magnetic Suspension Railway was taken as simulating object.The stages of setting surrounding terrain model were compared in detail.The optimized scheme was proposed.The accuracy and realistic degree were apparently improved.

关 键 词：地形建模 MULTIGEN CREATOR 虚拟现实 

分 类 号：U270[机械工程—车辆工程] TP391.9[交通运输工程—载运工具运用工程]