视景仿真中液压挖掘机与地形的动态交互

液压挖掘机视景仿真系统通过采用ROAM算法动态管理和实时绘制地形网格，并利用Bezier曲面方法设定控制点的运动路径以逼近铲斗内土壤表面形状的方法，实现了液压挖掘机与三维地形的动态交互，逼真地实现了挖土和卸土效果的模拟。开发的视景仿真系统为驾驶培训人员提供了逼真的、具有高度沉浸感的虚拟内部操作场景，真实感强，具有极佳的交互性。

Dynamic Interaction Between Hydraulic Excavator and Terrain in Visual Simulation

In order to dynamically manage and render the terrain mesh in real time, this paper puts the ROAM algorithm to use. Furthermore this paper uses bezier curved surface method to construct the surface of excavated soil by setting the path of control points, the visual scene simulation realizes the dynamic interaction between excavator and 3D terrain, and creates a realistic visual appearance of different operation regions on terrain such as excavated areas and dumped soil during the excavator simulation. The visual scene simulation system has a very strong sense of reality and an excellent interactivity, so that provides the driving training personnel realistic, highly immersive virtual internal operation scene.