Title :
Bi-arc approximation algorithm for NURBS curve in the numerical control machining
Author_Institution :
Sch. of Mech. Eng., North China Electr. Power Univ., Baoding, China
Abstract :
The method of bi-arc approximation for NURBS curve is put forward. The approaching principle and error using bi-arc segment is discussed in detail. Its bi-arc segment is tangent each other, first derivative continuous, step length transformable, numerical control approaching error controllable. The example shows the algorithm is simple and its approaching precision is high.
Keywords :
approximation theory; curve fitting; machining; numerical control; rational functions; splines (mathematics); NURBS curve; approaching principle; bi-arc approximation algorithm; numerical control machining; step length transformable; Approximation algorithms; Approximation methods; Computer numerical control; Machining; Spline; Surface reconstruction; Surface topography; Approximation; Bi-arc; NURBS Curve; Numerical Control Machining;
Conference_Titel :
Control Conference (CCC), 2010 29th Chinese
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6263-6
