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Cubic B-Spline Curves with Shape Parameter and Their Applications

Author

Listed:
  • Houjun Hang
  • Xing Yao
  • Qingqing Li
  • Michel Artiles

Abstract

The present studies on the extension of B-spline mainly focus on Bezier methods and uniform B-spline and are confined to the adjustment role of shape parameters to curves. Researchers pay little attention to nonuniform B-spline. This paper discusses deeply the extension of the quasi-uniform B-spline curves. Firstly, by introducing shape parameters in the basis function, the spline curves are defined in matrix form. Secondly, the application of the shape parameter in shape design is analyzed deeply. With shape parameters, we get another means for adjusting the curves. Meanwhile, some examples are given. Thirdly, we discuss the smooth connection between adjacent B-spline segments in detail and present the adjusting methods. Without moving the control points position, through assigning appropriate value to the shape parameter, C 1 continuity of combined spline curves can be realized easily. Results show that the methods are simple and suitable for the engineering application.

Suggested Citation

  • Houjun Hang & Xing Yao & Qingqing Li & Michel Artiles, 2017. "Cubic B-Spline Curves with Shape Parameter and Their Applications," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-7, December.
    • Handle: RePEc:hin:jnlmpe:3962617
    DOI: 10.1155/2017/3962617
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    1. Yaroslav Vyklyuk & Milan M. Radovanović & Gorica Stanojević & Marko D. Petrović & Nina B. Ćurčić & Milan Milenković & Slavica Malinović Milićević & Boško Milovanović & Anatoliy A. Yamashkin & Ana Mila, 2020. "Connection of Solar Activities and Forest Fires in 2018: Events in the USA (California), Portugal and Greece," Sustainability, MDPI, vol. 12(24), pages 1-23, December.

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