一种自由曲线的误差评定方法  

A Method of Error Evaluation on Free-Form Curve

作　　者：石静[1] 

机构地区：[1]新侨职业技术学院,上海201806

出　　处：《机械工程师》2008年第9期142-144,共3页Mechanical Engineer

基　　金：上海高校选拔培养优秀青年教师科研专项基金(36005)

摘　　要：文中对IGES文件格式及B样条曲线的数据记录格式作了简要的说明,提出了一种自由曲线的误差评定方法。给出了点到理论曲线距离的算法,优化了距离的计算方法,大大提高了计算效率。In this paper, the IGES format and data record format of B-spline are represented briefly, and a method of error evaluation on free-form curve is advanced. This paper researches the question on distance calculation between a point and a segment of B-spline. This paper optimizes the calculation method of the distance so as to upgrade the calculating efficiency highly.

关 键 词：B样条曲线 IGES 误差评定 距离 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]