Algorithms for finding the axis of a helix: Fast rotational and parametric least-squares methods

被引：66

作者：

Christopher, NA ^{[1
]}

Swanson, R ^{[1
]}

Baldwin, TO ^{[1
]}

机构：

[1] TEXAS A&M UNIV, DEPT BIOCHEM & BIOPHYS, CTR MACROMOL DESIGN, COLLEGE STN, TX 77843 USA

来源：

COMPUTERS & CHEMISTRY | 1996年 / 20卷 / 03期

关键词：

D O I：

10.1016/0097-8485(95)00075-5

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

Several methods for finding the axis of a helix are presented and compared. The most accurate determines the helix axis as the axis of rotation necessary to map point i to point i + 1 of the helix. The fastest method calculates the helix axis as the best-fit line through the coordinates by a three-dimensional parametric linear least-squares algorithm, taking advantage of the sequential nature of the data. (C) 1996 Elsevier Science Ltd.

引用

页码：339 / 345

页数：7

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