文献类型：期刊文章

作　　者：孙克豪[1] 乔新[1]

机构地区：[1]南京航空航天大学信息工程部,南京210016

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》

年　　份：1997

卷　　号：14

期　　号：2

起止页码：190-197

语　　种：中文

收录情况：AJ、CSA、CSA-PROQEUST、EI、IC、INSPEC、JST、SCOPUS、ZGKJHX、ZMATH、普通刊

摘　　要：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.

关 键 词：helixes  CURVES non-uniform rational B-spline (NURBS)  error distribution  

分 类 号：O241.5]