复杂散乱点重构方法的研究与实现

Research and realization of complicated scattered points reconstruction means

复杂散乱点重构技术历来是实物逆向工程中的关键技术。在深入分析现有经典的重构方法基础上,提出了一种基于三角域上改进的NURBS曲面重构方法。在复杂散乱点上进行基于Delaunay的三角刨分并重构出品质优良的Bezier曲面,然后在它的约束下完成NURBS曲面的二次重构。开发了复杂散乱点重构模块FastForm,并以IGES作为数据通讯接口搭建了一个实现反求全过程的反求平台,通过电话听筒实例验证了该反求系统的实效性。

The reconstruction of dense cloud points is the key technique in reverse engineering and is the bottleneck in the progress of reverse engineering. Based on analyzing the current classic methods deeply, Presents a new method to reconstruct NURBS surface according to triangle meshes. This method combines the vividness of Bezier surface reconstruction with the accuracy of NURBS surface reconstruction and makes complicated dense points reconstruction accurately and effectively, it devises a recon- struction module FastForm based on the method discussed in paper and builds a reverse engineering system regarding the IGESformat as data interface. Finally, the actual effect of this reverse engineering system is verified by an instance.