Characteristic conic of rational bilinear map
Characteristic conic of rational bilinear map
复制标题
有理双线性映射的特征二次曲线
DOI:
10.1016/j.cam.2018.07.012
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发表时间:
2019-01
期刊:
影响因子:
--
通讯作者:
赵易
中科院分区:
文献类型:
--
作者:
邓重阳;李亚娟;木效文;赵易
Bilinear and rational bilinear maps defined by planar quadrilaterals play important roles in computer graphics and geometric design. We show that the inverse of a rational bilinear map has a close relationship with a conic, which is named as ”characteristic conic” in this paper. We show that the characteristic conic of a rational bilinear map can be expressed as the rational quadratic Bézier curve, with its control points and weights in a closed form. Furthermore, we show that the characteristic conic is an envelope of two one-parameter families of straight lines, and all characteristic conics of a fixed quadrilateral form a one-parameter family.
DOI:
10.1016/j.cagd.2015.01.002
发表时间:
2015-02
期刊:
Comput. Aided Geom. Des.
影响因子:
--
作者:
M. Floater
通讯作者:
M. Floater
DOI:
10.1016/j.cagd.2014.11.001
发表时间:
2015
期刊:
Comput. Aided Geom. Des.
影响因子:
--
作者:
T. Sederberg;Jianmin Zheng
通讯作者:
T. Sederberg;Jianmin Zheng
DOI:
--
发表时间:
1990-08
期刊:
--
影响因子:
--
作者:
G. Wolberg
通讯作者:
G. Wolberg