A hybrid surfacing methodology for reverse engineering
Purpose- The purpose of this paper is to propose a new hybrid surfacing methodology which could result in a faster high quality surface reconstruction.Design/methodology/approach- After reviewing the state-of-the-art reverse modeling techniques, the two methodologies of classical surfacing based on typical procedure of point-curve-surface and rapid surfacing based on polygonized mesh grids are presented. The basic fundamentals involved in these two methodologies are described. And the advantages and limitations of both methodologies are analyzed.Findings- Classical surfacing packages can provide a very high quality surface, but at a premium in terms of time, operator skill, and involvement especially when high quality or class A surfaces are required. Rapid surfacing has been introduced to overcome the above disadvantages. However, its capability of quickly adapting surfaces to the point cloud requires the use of higher degree NURBS surfaces with respect to classical surfacing. Moreover, curvature continuity between surface patches is often difficulty to obtain.Originality/value- A new hybrid surfacing methodology based on feature template is proposed which could integrate the surfacing advantages of the former two. As for hybrid surfacing, rapid surfacing is used firstly to polygonize the point cloud to extract the feature template with quadrilateral parameterization type, then feature template is taken further treatment in classical surfacing system to construct surface model. It can not only efficiently overcome the drawback of curvature continuity in rapid surfacing, but also reduce the difficulty of data segmentation in classical surfacing, making faster high quality surface approximations possible.
Reverse engineering Surface reconstruction Virtual prototype Feature template
Siyuan Cheng Xiangwei Zhang Guoxin Yu
Faculty of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, China
国际会议
北京
英文
203-211
2008-11-06（万方平台首次上网日期，不代表论文的发表时间）