关键词: 序列剖视图, 最大法线分布, 网格模型, 搜索, 旋转无关主轴, 计算机辅助设计

Abstract: View-based feature for mechanical mesh model search was studied. In order to determine projection directions and cutting positions of sectional drawings of models, an approach named Modified Maximum Normal Distribution（M-MND）was proposed firstly for generating rotation invariant principal axes. Then three projection directions of model's orthogonal sectional drawings were set as directions of three principal axes respectively. On that basis, for the purpose of creating representative sequential sectional drawings, an algorithm named Silhouette-based Self-adaptive Creation Method（SSCM）for sequential sectional drawings was presented. The results from the experiments demonstrated the feasibility and effectiveness of proposed approaches.

Key words: sequential sectional drawings, maximum normal distribution, mesh model, search, rotation invariant principal axis, computer aided design