计算机工程与应用2012，Vol.48Issue(21)：1-4,4.DOI:10.3778/j.issn.1002-8331.2012.21.001
改进的NURBS曲线预估校正插补方法
Modified predictor-corrector NURBS interpolation algorithm
摘要
Abstract
The first two parameters can not be calculated by current predictor-corrector NURBS interpolation algorithm, and the iteration times for parameter correction can not be controlled. Therefore, this paper puts forward a modified predictor-corrector NURBS interpolation algorithm. The parameter is predicted. Whether the predicted parameter is far beyond the expected parameter is checked according to maximum feed step, chord error and normal acceleration. If the error is in allowable error range, the parameter increment will be ajusted, otherwise it needs iteration correction. The results of simulations demonstrate that the iteration times for parameter correction of this new method are much less than those of current method because of parameter increment ajustment. It is more conducive to real-time interpolation.关键词
非均匀有理B样条曲线(NURBS)/预估校正/轮廓误差/步长增量Key words
Non-Uniform Rational B-Spline(NURBS)/ predictor-corrector/ chord error/ parameter increment分类
信息技术与安全科学引用本文复制引用
聂明星,蒋新华,陈兴武..改进的NURBS曲线预估校正插补方法[J].计算机工程与应用,2012,48(21):1-4,4.基金项目
福建省科技重大专项(No.2010HZ0002-1) （No.2010HZ0002-1）
福建省教育厅科技计划项目(No.JA10216). （No.JA10216）
