针对反求工程中常见的过渡曲面特征，提出了一种过渡曲面特征的提取算法。
A new method to extract blend surface feature is presented according to the common features of blend surface in reverse engineering.
讨论了混合建模方法的主要研究内容，并研究了二次曲面特征和过渡曲面特征提取。
Main contents in relation to the hybrid modeling method are discussed, and some key techniques such as quadric surface feature extraction and blend surface feature extraction are addressed in details.
根据过渡曲面的曲率特性，提出了一种有限元网格的圆角过渡特征提取及网格局部修改算法。
According to curvature characteristics of blending surface, a method was presented to extract and modify rounding feature on finite element mesh models.
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