Development of a freeform surface editor

Widely used as one of the primary industrial standards for surface modelling in computer aided design (CAD) and computer aided manufacturing (CAM) systems, Non Uniform Rational B-splines (NURBS) has presented itself with many useful properties on designing and modelling curves and surfaces. However,...

Full description

Saved in:
Bibliographic Details
Main Author: Oh, Patrick Kay Yew
Other Authors: Zheng Jianmin
Format: Final Year Project
Language:English
Published: 2011
Subjects:
Online Access:http://hdl.handle.net/10356/44664
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
Description
Summary:Widely used as one of the primary industrial standards for surface modelling in computer aided design (CAD) and computer aided manufacturing (CAM) systems, Non Uniform Rational B-splines (NURBS) has presented itself with many useful properties on designing and modelling curves and surfaces. However, there still exists a major shortcoming in NURBS. The nature of NURBS rectangular structure requires that its control points must always align itself in a rectangular grid, thus having the requirement of adding unnecessary control points, which serves no other purpose but only to fulfill its rectangular control grid topology. With the large amount of superfluous control points, it complicates the design process, and as a result, it greatly increases the amount of time and effort needed to model and edit a freeform surface.