quadric rotational surface 二次旋转曲面
parabolic rotational surface 抛物型旋转超曲面
spherical rotational surface 球型旋转曲面
rotational stream surface 旋转流面
rotational quadric surface 旋转二次曲面
elliptical rotational curved surface 椭圆回转曲面
Non-Rotational Symmetric Optical Surface 非回转对称光学曲面
A slicing algorithm, used to get curves from point cloud, is presented in chapter 5. With the slicing and interaction analysis, the free-form surface features, including sweeping surface, rotational surface and skinning surface, can be cataloged.
详细论述了从点云数据中提取曲线的切片算法，提出了通过点云切片和交互的手段提取扫掠曲面、旋转曲面和蒙皮曲面等自由曲面特征参数的方法。
参考来源 - 反求工程CAD建模中的特征技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
By making use of transformation of coordinate translation, coordinate rotation, we deduced general formula about area of rotational surface.
利用坐标平移、旋转变换，导出旋转曲面面积求法的一般公式。
Principal directions of a rotational surface were mapped to Gaussian sphere in the algorithm, and principal direction Gaussian image(PDGI) was generated.
该算法对旋转面主方向映射到高斯球面，生成主方向高斯图像（PDGI）。
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