摘要
复杂曲面的逆向造型是曲面造型的核心。针对目前CAD/CAM系统存在复杂曲面造型方面的不足,开发了数据预处理程序,对测量得到的实体数据进行平滑滤波处理,消除由此带来的噪声影响,再利用预处理后的数据实现从型值点到控制点的反算以及B样条曲面的重构。结合Pro/E软件,较好的实现了复杂曲面的实体造型,从而为后续的数控加工打下了基础。
Modeling of complex surface is a key of reconstruction of surface;for the time being, CAD/CAM system is lack of the function that cannot process 'point cloud',so this paper presents a data processing program based on the cubic B-spline surface algorithm to the reverse calculation from real point to control point and reconstruction of B-spline surface. With the help of the 3D software Pro/E, the entity modeling of complex surface is achieved quickly and successfully, further, establishing the foundation for NC-process.
出处
《计算技术与自动化》
2004年第2期55-58,共4页
Computing Technology and Automation
