摘要
本文引入单向凸的概念，给出了箱样条曲面单向凸的必要条件，充分条件。
The topic of this paper is to study the relationship between properties of the control points of the Box spline surfaces ond the unidirectional convexity of the Box spline surfaces. Necessary conditions and sufficient conditions for the unidirectiolal convexity of the Box spline surfaces are presented.
出处
《榆林学院学报》
1999年第4期35-36,共2页
Journal of Yulin University
基金
陕西省教委科研资助
关键词
箱样条
单向凸
Box-spline, unidirectioln convexity
