%0 Journal Article
%T ON THE ENVELOPE PROPERTIES OF RATIONAL B-SPLINE CURVES AND SURFACES<br>有理B-样条曲线、曲面的包络性质
%A 吕伟
%A 梁友栋
%J 计算数学
%D 1989
%I 
%X In this paper, the envelope theorems for rational B-spline curves and surfaces are provedso that the k-order rational spline curves or surface can be interpreted as the envelope of then-order (n
%K B样条曲线
%K B样条曲面
%K 包络性质
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=CC77F3CEF526D9CF0B3021650FB4E57E&aid=17943E81862F20EC8319F8F083FBF7F6&yid=1833A6AA51F779C1&vid=708DD6B15D2464E8&iid=CA4FD0336C81A37A&sid=CD775AE9DDBD7B53&eid=08805F9252973BA4&journal_id=0254-7791&journal_name=计算数学&referenced_num=1&reference_num=13