Multicurve Trimmed Surface 多重曲线剪切曲面 ; 多曲线剪切曲面
Create a Multicurve Trimmed Surface 创建多重修剪表面
trimmed surface reconstruction 裁剪曲面重建
create multisided trimmed surface 创建多重裁剪曲面
implicit trimmed surface 隐式裁剪曲面
tessellation of trimmed surface 裁剪曲面离散
constructive trimmed surface geometry 构造裁剪曲面几何
Create a Multicurved Trimmed Surface 创建多重复合曲线剪切曲面
The spiral tool-path planning method of the blade is given, including the re-parameterization of the trimmed surface, the determination of step length and row distance, the judgment of surface’s concavity and convexity, the calculation of cutter-contact point, and so on.
提出了整体叶轮的叶片螺旋铣削加工刀触点规划算法,实现了裁剪曲面的重新参数化、走刀步长及切削行距的确定、曲面凹凸性判断、螺旋轨迹刀触点的计算等。
参考来源 - 整体叶轮实体造型与五坐标数控加工技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Surface patch must be continuous and consistent for contact judgment by the method of parameter surface patch, but the trimmed surface from CAD does not suffice the request.
用参数曲面片法进行接触判断，对于曲面的表示有连续及相容的要求，但用CAD设计的裁剪曲面并不满足这个要求。
The definition of trimmed surface is main content of Initial Graphics Exchange Specification(IGES). The format of trimmed surface description in IGES file is discussed in detail.
裁剪曲面是基本图形交换规范（IGES）的主要内容，详细介绍了IGES文件中裁剪曲面的定义格式。
Then, the paper put forward method used to Triangular segmentation of trimmed surface by combining the Advancing Front Technique with Mapping Technique, and afforded its special algorithm .
然后，提出了以推进波前法与映射法相结合处理裁剪曲面的三角剖分方法，并给出了具体的实现算法。
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