| Bezier曲线方向导数的求值 |
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| 引用本文： | 张晓鹏,陈泽志.Bezier曲线方向导数的求值[J].地球科学与环境学报,1995(2). |
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| 作者姓名： | 张晓鹏 陈泽志 |
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| 作者单位： | 西北大学数学系，西安矿业学院计算机系 |
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| 摘 要： | 本文通过对重心坐标形式Ｂｅｚｉｅｒ曲线各阶方向导数的分析，给出了这种形式Ｂｅｚｉｅｒ曲线的有效求值方法，所用内存量和乘法数目与ｄｅＣａｓｔｅｌｊａｕ算法相当。
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| 关 键 词： | 重心坐标 Bezier曲线，多项式赋值 deCasteljau算法 |
A METHOD TO EVAT,UATE ALL DIRECTIONAL DERIVATIVES OF A BE'ZIER CURVE |
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| Zhang Xiaopeng.A METHOD TO EVAT,UATE ALL DIRECTIONAL DERIVATIVES OF A BE'ZIER CURVE[J].Journal of Earth Sciences and Environment,1995(2). |
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| Authors: | Zhang Xiaopeng |
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| Institution: | Zhang Xiaopeng(Dept. of Math. Northwest University)Chen Zezhi(Dept. of Cereputer Sa. Xian Mining Institute) |
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| Abstract: | By means of analyzing all directional derivatives of barycentric coordinate form of Be'zier curves,an efficient evaluation method for this form has been furnished,and all the storage quantity and multiplication number are equivalent to that of de Castelisu algorithm. |
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| Keywords: | barycentric coordinate Be'zier curves polgnomial evaluation de Casteljau algorithm |
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