逆向工程实体模型重建技术研究

Research on solid modeling in reverse engineering

针对CMM扫描线数据,进行了数据分层和数据排序,完成了数据拓扑关系的建立。研究了距离阈值法和向量角度法相结合的数据精简方法和基于分层维的特征提取技术。以基于分层维的数据处理技术研究为基础,提出了一种利用数据点特征的非均匀有理B样条(NURBS)曲面重构方法,在Solid-works中实现了实体模型的重建。

With the CMM scanning data points,data layering and data sorting are performed.The topology relation is established.The algorithm of data reducing which combines distance threshold with veltor angle is researched.The technology of feature extraction based on layering dimension is also studied.On the basis of the research of layering dimension based data processing,a procedure is proposed that reconstructs Non-Uniform Rational B-Spline（NURBS）surface with features of measured data.And the reconstruction of solid model in Solidworks software is realized.