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Cubic Trigonometric Nonuniform Spline Curves and Surfaces

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  • Lanlan Yan

Abstract

A class of cubic trigonometric nonuniform spline basis functions with a local shape parameter is constructed. Their totally positive property is proved. The associated spline curves inherit most properties of usual polynomial -spline curves and enjoy some other advantageous properties for engineering design. They have continuity at single knots. For equidistant knots, they have continuity and continuity for particular choice of shape parameter. They can express freeform curves as well as ellipses. The associated spline surfaces can exactly represent the surfaces of revolution. Thus the curve and surface representation scheme unifies the representation of freeform shape and some analytical shapes, which is popular in engineering.

Suggested Citation

  • Lanlan Yan, 2016. "Cubic Trigonometric Nonuniform Spline Curves and Surfaces," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-9, February.
    • Handle: RePEc:hin:jnlmpe:7067408
    DOI: 10.1155/2016/7067408
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    Cited by:

    1. Abdul Majeed & Mehwish Naureen & Muhammad Abbas & Kenjiro T. Miura, 2022. "Construction of Cubic Trigonometric Curves with an Application of Curve Modelling," Mathematics, MDPI, vol. 10(7), pages 1-22, March.

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