Modeling of Free-Form Complex Curves Using SG-Bézier Curves with Constraints of Geometric Continuities
Modeling of Free-Form Complex Curves Using SG-Bézier Curves with Constraints of Geometric Continuities
复制标题
使用具有几何连续性约束的 SG-Bézier 曲线对自由形式复杂曲线进行建模
DOI:
10.3390/sym10110545
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发表时间:
2018-10
期刊:
影响因子:
--
通讯作者:
Guo Wei
中科院分区:
文献类型:
--
作者:
Fei Hou;Gang Hu;Cuicui Bo;Junli Wu;Guo Wei
The modeling of free-form engineering complex curves is an important subject in product modeling, graphics, and computer aided design/computer aided manufacturing (CAD/CAM). In this paper, we propose a novel method to construct free-form complex curves using shape-adjustable generalized Bézier (or SG-Bézier, for short) curves with constraints of geometric continuities. In order to overcome the difficulty that most of the composite curves in engineering cannot often be constructed by using only a single curve, we propose the necessary and sufficient conditions for G1 and G2 continuity between two adjacent SG-Bézier curves. Furthermore, the detailed steps of smooth continuity for two SG-Bézier curves, and the influence rules of shape parameters on the composite curves, are studied. We also give some important applications of SG-Bézier curves. The modeling examples show that our methods in this paper are very effective, can easily be performed, and can provide an alternative powerful strategy for the design of complex curves.
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DOI:
10.1016/j.advengsoft.2018.03.003
发表时间:
2018-07
期刊:
Adv. Eng. Softw.
影响因子:
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2016
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2001-11
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2010
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DOI:
10.1080/10020070612331343269
发表时间:
2007-03
期刊:
Progress in Natural Science
影响因子:
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