摘要
目的给出二次有理Bézier曲线一个性质。方法应用面积公式和权因子变换公式给出证明。结果二次有理Bézier曲线具有一致收敛性。结论所给出的二次有理Bézier曲线的一个整体逼近的几何证明方法,纠正和完善了许伟、齐从谦关于二次有理Bézier曲线的结论。
Aim A geometic property of rational quadratic Bézier is tobe researched. Methods Using formula of area and weight transform the property is proved. Results The rational quadratic has convergence non-uniformly. Conclusion A geometric method was given to prove the whole approximation of rational quadratic curves. The conclusion of rational quadratic Bézier given by XU Wei and QI Cong-qian is made perfect.
出处
《西北大学学报(自然科学版)》
CAS
CSCD
北大核心
2005年第4期377-378,共2页
Journal of Northwest University(Natural Science Edition)
基金
国家自然科学基金资助项目(60072044)
陕西师范大学青年基金资助项目