| 圆柱螺旋线的NURBS表示(英文) |
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| 引用本文： | 孙克豪,乔新.圆柱螺旋线的NURBS表示(英文)[J].南京航空航天大学学报(英文版),1997(2). |
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| 作者姓名： | 孙克豪 乔新 |
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| 作者单位： | 南京航空航天大学信息工程部 南京210016
(孙克豪)，南京航空航天大学信息工程部 南京210016(乔新) |
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| 摘 要： | 给出了空间圆柱螺旋线的NURBS表示方法,讨论了控制顶点对其形状的影响,并具体分析了用于逼近的螺旋曲线与原理论螺旋曲线之间的误差分布情况,最后提出了保证精度要求的计算方法。
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| 关 键 词： | 螺旋线 曲线 非均匀有理B样条(NURBS) 误差分布 |
DESCRIPTIONS OF THE CYLINDRICAL HELIX WITH NURBS |
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| Sun Kehao Qiao Xin.DESCRIPTIONS OF THE CYLINDRICAL HELIX WITH NURBS[J].Transactions of Nanjing University of Aeronautics & Astronautics,1997(2). |
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| Authors: | Sun Kehao Qiao Xin |
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| Abstract: | The representation of a cylindrical helix by Non-Uniform Rational B-Spline (NURBS) curves is presented in this paper. A method is proposed to assess the influences produced by different ways to determine the control ver-texes positions of helix. The error distribution cases between the helix approximated by NURBS curves and the original theoretical one are also analyzed. Meanwhile a computational method that guarantees the precision requirements is presented. |
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| Keywords: | helixes curves non-uniform rational B-spline (NURBS) error distribution |
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