With regard to the extraction of free-form surface feature, a slicing algorithm, used to get section data from point data is presented. The method to extract feature points from section data is also studied.
在自由曲面的特征提取中，详细论述了通过点云切片从点云数据中提取截面轮廓数据的方法，讨论了从截面数据中提取特征点，通过特征点两边数据的规律实现截面特征的识别。
参考来源 - 反求工程中复杂零件的CAD建模关键技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
针对典型液压缸截面特征，给出一种简明的三角形单元网格生成算法。
According to the section feature of typical hydro-cylinder, a brief algorithm for triangular element mesh generation is presented in the paper.
研究了用圆弧曲率估算截面数据离散曲率的方法和特征点提取方法，提出了基于曲线拟合的截面特征识别方法。
Other preprocessing methods such as discrete curvature estimation and feature point extraction are also studied, and a section-feature recognition algorithm, based on curve fitting, is proposed.
以汽车密封条转接头管状部分点云数据为实例，详细介绍了通过开发的特征线模块进行汽车密封条截面特征线提取的方法。
Use car's sealing strips point cloud data, it is introduced in detail which car's sealing strips section characteristic curve extraction method with developed characteristic curve extraction module.
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