Research on automatic feature line picking up of complex curved surface
Yifei Tong · Journal of Machine Design · 2005
The reconstruction of geometric model of machine parts with complex curved surfaces is one of the key of research in reverse engineering,picking up the feature line from the digitized data of parts' surfaces is an important step to construct geometric model.Directed against the 3D data points cloud acquired form CMM,the 3D layering method used to realize the automatic feature line picking up based on scanning line was proposed.The triangulation algorithm of 3D scattering disordered data based on partial increment mesh expansion has been put forward to realize the automatic picking up of sharp crest lines of arbitrary curved surfaces.It is illustrated through practice that the border lines of complex curved surfaces obtained by means of this algorithm could satisfy engineering needs of model reconstruction.