铁路门吊司机仿真培训系统实现的关键技术

Crucial technologies in the implementation of the simulation training system for the railway department craneman

三维建模与实时碰撞检测是实现仿真培训系统的两个关键技术。利用3dmax建立几何模型,从3ds文件中导入图形元素,利用OpenGL的几何图元构造三维模型。通过建立包围盒树,采用基于包络树的碰撞检测算法实现碰撞检测。实验结果表明,提出的方法提高了虚拟环境的真实性与内存的利用率,并且能够快速实现碰撞检测,达到实时性要求。

3D modeling and real-time collision detection are the two key technologies in implementing the simulation training system. A geometry model was established with 3dmax. The figure element was ducted from the 3ds document and the 3D model was constructed with the geometry figure element of OpenGL. Collision detection was implemented through constructing bounding volume tree and adapting collision detection algorithm based on enveloping tree. The experiment results show that the proprosed method can improve the reliability of virtual environment and availability of the memory. It can implement the collision detection fast and meet the demand of real time.