公路视景仿真模型

Highway scene simulation model

针对传统的三维动画评价公路与环境配合的手段已不适应公路交通发展的需要的状况,对公路视景仿真模型进行了研究。提出了公路视景仿真的研究思路,建立了基于B rep的公路三维视景管理模型,对视景仿真中的多层次细节模型、纹理映射技术进行了应用研究。该模型对公路实时场景的生成以及进一步建立公路仿真系统具有重要的作用,所讨论的算法,对改进渲染速度具有明显的作用。

With the development of highway design, traditional evaluation method by using three dimension animations is not being able to satisfy the requirement. This paper put forward a new highway scene simulation model. Based on B-rep model, the management model of highway three-dimension scene was established. The LOD model and texture mapping technology was studied. The model is the key of real-time generation of highway and is a part of highway simulation model. Its algorithm can improve the render speed of the scence.