| 摘要: |
| 形体的抽壳是构造具有薄壁外壳形状物体的一种有效方法.文章基于边界表示的正则形体,给出体抽壳运算的数学定义,并提出实现体抽壳运算的算法.该算法把形体的三维运算转化到曲面的参数域上,进行二维环之间的合并运算,从而降低了问题的复杂度. |
| 关键词: CAD/CAM系统,抽壳,边界表示,实体造型. |
| DOI： |
| 分类号: |
| 基金项目:本文研究得到国家自然科学基金资助. |
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| A Shell Algorithm for Solid on Boundary Representation |
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ZUO Zheng,HU Shi-min,SUN Jia-guang
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| Abstract: |
| The shell operation of solid is an effective method to construct a solid with shape of thin shell. In this paper, the authors describe the mathematical definition of shell operation on regular solid with boundary representation, and present an algorithm for shell operation. The algorithm implements the solid's 3D operation by 2D merging operation of loops in surface's parametric region. So the complexity of problem is reduced. |
| Key words: CAD/CAM system, shell, boundary representation, solid modeling. |
