累加弦长法插值在反求工程中的实现研究  

Research on realization of cumulative chord length method interpolation in reverse engineering

作　　者：李永桥[1] 谌永祥[1] 

机构地区：[1]西南科技大学制造学院,四川绵阳621010

出　　处：《山东建筑大学学报》2008年第3期247-249,共3页Journal of Shandong Jianzhu University

基　　金：四川省科技攻关项目(05GG021-035)

摘　　要：结合三次样条函数提出了一种基于三次样条的插值方法,即累加弦长法,并给出了累加弦长法的计算过程和插值流程。插值后的曲线具有二阶连续性,不改变曲线的形状特征。该方法可应用于反求工程中数据插值,也可用于数控加工系统插值。Based on cubic spline function, a method of interpolation, viz. cumulative chord length method was put forward, and calculation process and interpolation flow chart was offered. The interpolating curve has C2 continuity, and its figure characteristic keeps invariability. This method can be used in reverse engineering and NC machining.

关 键 词：累加弦长法 三次样条 反求工程 数控加工 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术]