【摘要】 提出并实现了一种基于网格模型的光滑B样条曲面重建方法.首先研究并实现了网格模型上特征线的定义和优化方法,在此基础上提供了多种交互式编辑工具,使用户可以方便地构建出符合原始设计意图的四边界区域拓扑模型;最后在综合考虑拟合精度、光顺性和连续性等条件下实现了B样条曲面的光滑拟合.实验证明算法的效率和曲面拟合质量都能较好地满足反求工程的要求.更多还原

【Abstract】 This paper proposes and implements an approach to smooth B-Spline surface reconstruction based on the mesh model.In the investigation,a method to define and optimize the feature lines of the mesh model is studied and implemented.Then,a set of interactive editing tools are provided for users to freely construct the final quadrilateral patch topology model which suits the original design intent.Finally,a smooth B-spline surface is reconstructed by synthetically considering the fitting accuracy,the smoothness and the continuousness.Experimental results demonstrate that the proposed algorithm meets the requirements for reconstruction efficiency and surface fitting qua-lity in reverse engineering.更多还原