Non-uniform Rational B-splines (NURBS):

Tracing down the roots of NURBS as utilized in CAD and graphics is not simple. But, if we consider the two chief ingredients on NURBS and rational B-splines after that we might start an overview along Coons. Coons recommended the utilization of rational polynomials to shows conic sections precisely. Forrest pursued the ideas furthermore and provided a rigorous treatment of rational cubics and conics., De Boor, Schoenberg, Cox, and Masfield. Riesenfeld have introduced B-spline curves and surfaces into CAD/CAM and graphics. Following Versrille , Riesenfeld extended B-splines to rational B-splines. His work 1975 was the primary written account of NURBS. By the late year 1970s, the CAD/CAM industry recognized the requirements for a modeler that had a common internal system of representing and holding different geometric entities. At approximate the similar time, three major groups looked at the possibility of utilizing NURBS.