Irregular symmetrical object designed by using lambda miu B-spline degree four

• Published in: Journal of Physics: Conference Series
• Main Author: Sukri N.B.M.; Mohd P.A.H.B.M.; Nor-Al-Din S.M.B.; Razali N.K.B.
• Format: Conference paper
• Language: English
• Published: IOP Publishing Ltd 2021
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120813779&doi=10.1088%2f1742-6596%2f2084%2f1%2f012018&partnerID=40&md5=cbf19c61d72a7c578e37341bc8dd22f4

In Computer Aided Geometry Design (CAGD), B-splines curves are piecewise polynomial parametric curves that play an important role. CAGD involves the interpolation and approximation curves and surfaces. CAGD has been widely used which brings good impact of computers to industries in manufacturing. There are many improved methods in the B-spline curve such as extended cubic B-spline, trigonometric B-spline, quasi trigonometric B-spline, and λµ-B-spline. Each of the methods has its behaviour and advantage. In this paper, λµ-B-spline was used to be implemented in generating irregular symmetrical objects. λµ-B- spline has a shape parameter that can change the global shape by manipulating the value of the shape parameter. The bottle has been chosen as an irregular symmetrical object. The 2-dimensional symmetrical curves of Bottle design were formed by using λµ-B-spline degree 4. The curves designed are dependent on the shape parameter which can be adjusted. Then, the curves generated were revolved using the Sweep Surface method to form 3-dimensional objects. Every object has its volume and this research focused on the numerical method which was Simpson's 3/8 to compute the volume. The volumes obtained were compared to the actual volume to determine the best shape parameter used. The results show that the λµ-B-spline curve with a shape parameter of 1 is the best shape parameter in designing symmetrical irregular objects with the desired volume. © Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.