摘要
本文给出一种基于消隐算法及其数据结构的双Ｂｅｔａ样条曲面浓淡处理方法，用此方法计算曲面各点的浓淡值，运算简单，计算量小。同时提出确定曲面外法线的一种行之有效的判定准则，该准则方法简单。
his paper privides a shading method based on hidden surface removal algorithm and data structure for bibeta spline surface. It is simple to calculate shadingvalues of every points on the surface, and the computing time is less. The paper alsogives an effective rule to confirm the external normal line which is simple and reliable.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
1996年第3期187-192,共6页
Journal of Computer-Aided Design & Computer Graphics
基金
国家自然科学基金
关键词
CAD
Beta样条
消隐算法
曲面浓淡处理
geometrical design and modelling, shading model, free surface, CAD,spline/Beta spline.
