Geometric Modeling of C-Bézier Curve and Surface with Shape Parameters

In order to solve the problem of geometric design and architectural design of complex engineering surface, we introduce the parametric and geometric continuity constraints of generalized C-Bézier curves and surfaces with shape parameters. Firstly, based on C-Bézier basis with parameters, we study th...

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Main Authors: Wei Meng, Caiyun Li, Qianqian Liu
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/21/2651
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author Wei Meng
Caiyun Li
Qianqian Liu
author_facet Wei Meng
Caiyun Li
Qianqian Liu
author_sort Wei Meng
collection DOAJ
description In order to solve the problem of geometric design and architectural design of complex engineering surface, we introduce the parametric and geometric continuity constraints of generalized C-Bézier curves and surfaces with shape parameters. Firstly, based on C-Bézier basis with parameters, we study the constraints of the control points of the curves needed to be satisfied when connecting them. Moreover, we study the continuity conditions between two adjacent C-Bézier surfaces with parameters. By the continuity conditions and different shape parameters, the curve and surface can be changed easily and be more flexible without altering its control points. Therefore, by adjusting the values of shape parameters, the curve and surface still preserve its characteristics and geometrical configuration. Some graphical examples ensure that the proposed method greatly improves the ability to design complex curves and surfaces and easy to implement.
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spelling doaj.art-3a5620744fd84394be2e8df1058bbb222023-11-22T21:16:50ZengMDPI AGMathematics2227-73902021-10-01921265110.3390/math9212651Geometric Modeling of C-Bézier Curve and Surface with Shape ParametersWei Meng0Caiyun Li1Qianqian Liu2School of Mathematical Sciences, Dalian University of Technology, Panjin 124221, ChinaSchool of Mathematical Sciences, Dalian University of Technology, Panjin 124221, ChinaSchool of Mathematical Sciences, Dalian University of Technology, Panjin 124221, ChinaIn order to solve the problem of geometric design and architectural design of complex engineering surface, we introduce the parametric and geometric continuity constraints of generalized C-Bézier curves and surfaces with shape parameters. Firstly, based on C-Bézier basis with parameters, we study the constraints of the control points of the curves needed to be satisfied when connecting them. Moreover, we study the continuity conditions between two adjacent C-Bézier surfaces with parameters. By the continuity conditions and different shape parameters, the curve and surface can be changed easily and be more flexible without altering its control points. Therefore, by adjusting the values of shape parameters, the curve and surface still preserve its characteristics and geometrical configuration. Some graphical examples ensure that the proposed method greatly improves the ability to design complex curves and surfaces and easy to implement.https://www.mdpi.com/2227-7390/9/21/2651C-Bézier basisgeometric continuityparametric continuityshape parameters
spellingShingle Wei Meng
Caiyun Li
Qianqian Liu
Geometric Modeling of C-Bézier Curve and Surface with Shape Parameters
Mathematics
C-Bézier basis
geometric continuity
parametric continuity
shape parameters
title Geometric Modeling of C-Bézier Curve and Surface with Shape Parameters
title_full Geometric Modeling of C-Bézier Curve and Surface with Shape Parameters
title_fullStr Geometric Modeling of C-Bézier Curve and Surface with Shape Parameters
title_full_unstemmed Geometric Modeling of C-Bézier Curve and Surface with Shape Parameters
title_short Geometric Modeling of C-Bézier Curve and Surface with Shape Parameters
title_sort geometric modeling of c bezier curve and surface with shape parameters
topic C-Bézier basis
geometric continuity
parametric continuity
shape parameters
url https://www.mdpi.com/2227-7390/9/21/2651
work_keys_str_mv AT weimeng geometricmodelingofcbeziercurveandsurfacewithshapeparameters
AT caiyunli geometricmodelingofcbeziercurveandsurfacewithshapeparameters
AT qianqianliu geometricmodelingofcbeziercurveandsurfacewithshapeparameters