The bisector surface of rational space curves

被引:19
作者
Elber, G [1 ]
Kim, MS
机构
[1] Technion Israel Inst Technol, Dept Comp Sci, IL-32000 Haifa, Israel
[2] POSTECH, Dept Comp Sci, Pohang 790784, South Korea
来源
ACM TRANSACTIONS ON GRAPHICS | 1998年 / 17卷 / 01期
关键词
bisector; medial surface; skeleton; Voronoi surface;
D O I
10.1145/269799.269801
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
Given a point and a rational curve in the plane, their bisector curve is rational [Farouki and Johnstone 1994a]. However, in general, the bisector of two rational curves in the plane is not rational [Farauki and Johnstone 1994b]. Given a point and a rational space curse. this article shows that the bisector surface is a rational ruled surface. Moreover, given two rational space curves, we show that the bisector surface is rational (except for the degenerate case in which the two curves are coplanar).
引用
收藏
页码:32 / 49
页数:18
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