| 关于三次参数曲线的形状控制 |
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| 引用本文： | 谢田法,张胜刚,刘根洪. 关于三次参数曲线的形状控制[J]. 苏州大学学报(医学版), 2000, 16(1): 21-31 |
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| 作者姓名： | 谢田法 张胜刚 刘根洪 |
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| 作者单位： | [1]北京工业大学应用数学系 [2]复旦大学数学 |
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| 摘 要： | 讨论了平面三次参数曲线在端点出现拐点,二重点,尖点的情形,同时,讨论了曲线端点处的切向量平行等特殊情形。
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| 关 键 词： | 三次参数曲线 拐点 二重点 尖点 形状控制 |
| 文章编号： | 1000-2073(2000)01-0021-11 |
| 修稿时间： | 1999-06-18 |
On shape eontrol of the parametric cubic curve segment |
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| XIE Tian-fa,ZHANG Sheng-gang,LIU Gen-hong. On shape eontrol of the parametric cubic curve segment[J]. Journal of Suzhou University(Natural Science), 2000, 16(1): 21-31 |
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| Authors: | XIE Tian-fa ZHANG Sheng-gang LIU Gen-hong |
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| Affiliation: | XIE Tian-fa;( Deb.cf Applied Math., Beijing College of Industry, Beijing 100082, China);ZHANG Sheng-gang;(Dept. Of Math., Fudan Univ., Shanghai 200433, China);LIU Cen-hong;( Dept. Of Math., School of Sci. ,Suzhou Univ., Suzhou 215006, China) |
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| Abstract: | The main resul;t o this paper is detailed disuss the parametric cubic curve segment at the end points oceur infection point,multiple point and cusp situation.In the same time,we discuss the problem in detail for some special Cases,for instance,tangent veetors at ends are parallel. |
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| Keywords: | Cubic parametric curve infection point multiple point Cusp |
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