拟B样条离散曲面分层修改的研究

The Study on Hierarchical Modefication for Quasi-B-Spline Subdivision Surface

拟Ｂ样条离散曲面在曲面造型中是十分灵活的，但当对它进行局部修改时却存在一些不足。针对这一问题，本文提出了一种所谓分层修改的方法。这一方法为设计者提供了新的有力的编辑工具。

uasi-B-spline subdivision surfaces are quite flexible in surf see modeling, but they possess some deficiency when it come to local modefication. A solution called hierarchical modefication to this problem is presented in this paper. It provides a powerful new tool for designer.