摘要
视景仿真由场景建模、碰撞检测和地形匹配3个核心部分构成。在视景仿真中,逼真度越高,模型和算法越复杂,数据处理则更大。建模和算法涉及系统的刷新速率,也关系到场景逼真度。为了提高刷新率,采用地形分块法。该方法对整个场景进行区域划分处理,在不同区域中装入不同的地形数据,调用不同的模拟算法,以减少数据处理量和算法复杂度,提高系统运行效率。并以模拟坦克驾驶训练为例,论述了地形划分,分块地形数据的装入和预处理,碰撞检测,地形匹配及其算法。
Vision simulation is composed of three key parts that are scene modeling, collision test, and terrain match. In the vision simulation, as the scene fidelity is higher, the model and algorithm will become more complex, the amount of data process is even larger. Modeling and algorithm involved both the refresh rate of system and the scene fidelity. Terrain division is used in simulation for the purpose of improving refresh rate. The whole scene into several parts is divided, different terrain data is loaded respectively in different terrain parts, and different simulation algorithm is called with this method. So, the amount of data process and the complexity of algorithm is reduced and running efficiency of the system is improved. Taking simulating the tank-drive training for example, terrain division, loading and pretreatment of terrain data, collision test and the algorithm of terrain match was discussed.
出处
《兵工自动化》
2003年第2期12-14,共3页
Ordnance Industry Automation
