Planar B-Spline Curve Interpolation with Various Parameterizations

In previous days of shape modelling, the shape of engineering product arc represented by points. It is will make life easier if could provide mathematical equations that able define the shape of an engineering product. The aim of the project is to interpolate the set of data points with B-Spline pol...

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Main Author: Ng, Zhi Siang
Format: Thesis
Language:English
Published: 2015
Subjects:
Online Access:http://eprints.intimal.edu.my/104/
http://eprints.intimal.edu.my/104/1/BMEGI%20-%2045.pdf
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author Ng, Zhi Siang
author_facet Ng, Zhi Siang
author_sort Ng, Zhi Siang
building INTI Institutional Repository
collection Online Access
description In previous days of shape modelling, the shape of engineering product arc represented by points. It is will make life easier if could provide mathematical equations that able define the shape of an engineering product. The aim of the project is to interpolate the set of data points with B-Spline polynomial with different parameterization method such as chord length, centripetal and equal spaced parameterization. It is found that same set of data points, it may not be able to generate same shape of curve. The objective of this project investigate how the parameterization affect the shape of curve. In this paper, mathematical formula of different parameterization will be presented. The mathematical formula of different parameterization are then be convert into Excel Macro VBA to help generate results in a more efficiency way. Several set of data points which representing different characteristic of curve such as convex shape, inflected shape and Z shape are created to test how different parameterization on curve behave on it and the characteristic and properties of different parameterization are recorded. It was found that chord length parameterization curve are normally having bulges on longer chords, Centripetal parametcri7.ation curve following longer chords closer while for equal space easily to produce sharp points or loops with higher degree of curve. Furthermore, the impact of degree on different parameterization will also be discussed in this paper.
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spelling intimal-1042016-04-06T09:48:00Z http://eprints.intimal.edu.my/104/ Planar B-Spline Curve Interpolation with Various Parameterizations Ng, Zhi Siang TJ Mechanical engineering and machinery In previous days of shape modelling, the shape of engineering product arc represented by points. It is will make life easier if could provide mathematical equations that able define the shape of an engineering product. The aim of the project is to interpolate the set of data points with B-Spline polynomial with different parameterization method such as chord length, centripetal and equal spaced parameterization. It is found that same set of data points, it may not be able to generate same shape of curve. The objective of this project investigate how the parameterization affect the shape of curve. In this paper, mathematical formula of different parameterization will be presented. The mathematical formula of different parameterization are then be convert into Excel Macro VBA to help generate results in a more efficiency way. Several set of data points which representing different characteristic of curve such as convex shape, inflected shape and Z shape are created to test how different parameterization on curve behave on it and the characteristic and properties of different parameterization are recorded. It was found that chord length parameterization curve are normally having bulges on longer chords, Centripetal parametcri7.ation curve following longer chords closer while for equal space easily to produce sharp points or loops with higher degree of curve. Furthermore, the impact of degree on different parameterization will also be discussed in this paper. 2015 Thesis NonPeerReviewed text en http://eprints.intimal.edu.my/104/1/BMEGI%20-%2045.pdf Ng, Zhi Siang (2015) Planar B-Spline Curve Interpolation with Various Parameterizations. Other thesis, INTI International University.
spellingShingle TJ Mechanical engineering and machinery
Ng, Zhi Siang
Planar B-Spline Curve Interpolation with Various Parameterizations
title Planar B-Spline Curve Interpolation with Various Parameterizations
title_full Planar B-Spline Curve Interpolation with Various Parameterizations
title_fullStr Planar B-Spline Curve Interpolation with Various Parameterizations
title_full_unstemmed Planar B-Spline Curve Interpolation with Various Parameterizations
title_short Planar B-Spline Curve Interpolation with Various Parameterizations
title_sort planar b-spline curve interpolation with various parameterizations
topic TJ Mechanical engineering and machinery
url http://eprints.intimal.edu.my/104/
http://eprints.intimal.edu.my/104/1/BMEGI%20-%2045.pdf