空间离散点的交互光顺处理

Interactive fairing processing for spatial discrete points

在逆向工程中 ,复杂外形产品的曲面边界曲线的品质 ,是影响产品外观设计质量的关键因素。通过构造边界离散点的法矢和圆率曲线 ,分析空间离散点的形态分布特征 ,提出了一种空间离散点的交互光顺处理方法 ,根据离散点的法矢方向和圆率二次差 ,人机交互对光顺进程进行控制。实际应用表明 ,该方法可以有效处理空间离散点的光顺问题 ,保证原始离散数据的准确性。

In reverse engineering, the character of surface border curve in complex contoured product is the key factor affecting the outlook designing quality of product.The shape distribution characteristics of spacial discrete points is analyzed by means of constructing normal vector and curvature curve of border discrete points. A kind of interactive fairing processing method for spatial discrete points is proposed. The control of fairing process is carried out interactively according to the directions of normal vectors of discrete points and quadratic difference of curvature, Practical application shows that this method could deal with fairing issues of spatial discrete points effectively,and ensure the accuracy and rationality of primitive discrete data as well as the quality of curve design.