Virtual Subway Scene Modeling And Simulation

With the rapid development and mature of virtual reality technology, the virtual reality techniques are applied extensively in many fields. At present, virtual reality technology has been applied in entertainment, medical treatment, engineering and architecture, education and training.When virtual reality technology is applied in a train driving simulation system, the drivers can get effective training with advanced simulation technology, which is very important because the pressure of train driving simulation system in our country can be relieved. And at the same time, it can also help to avoid environment pollution, decrease energy consuming, and lessen training cost. Visual system is an important component of a train driving simulation system, it is a key factor to evaluate whether the train driving simulation system is advanced or not, it is also a principal condition to ensure the training effect.This article first introduced the structure and the development status of the train driving simulation system at home and abroad, simultaneously elaborated its significance of the study. Secondly, the modeling tools is determined by system requirement, VC++6.0 and Vega are adopted to construct simulation platform, and then the system development project is put forward on the basis of them. There are several research aspects in the paper:(1) 3D model transformation and graph processing algorithm in 3D view simulation system(2) Construct the subway platform and the track line 3D model database(3) 3D real-time view simulation system configuration and drive software developmentIn these three aspects, 3D model building of subway station and track is key question to be solved of the paper. On 3D scene modeling, with the operating data of the present subway running on the track and real photographs, makes 3D modeling for running environment and achieves the real scene. The development of 3D drive software is the paper difficulty, which includes real-time scene driving and network communication.In the end, the limitations of the work are summarized and the respects of the future work are also outlined.