C-B-spline singular blending interpolating

  • Authors:
  • Ying Huifen

  • Affiliations:
  • Hangzhou Wanxiang Polytechnic, Hangzhou, People's Republic of China

  • Venue:
  • ICCOMP'06 Proceedings of the 10th WSEAS international conference on Computers
  • Year:
  • 2006

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Abstract

C-B-spline curve is an extension of cubic B-spline curve. It has similar properties to cubic B-spline curves and can represent conic curves such as circles, ellipses, hyperbola, etc. This paper presents a new interpolation method that can produce GC2-continuous C-B-spline curves without solving global systems of equations, while providing slackness control capabilities. A global slackness parameter controls the distance between the interpolating curve segments and the data segments. The basic idea of the interpolation is to blend a C-B-spline curve with a singularly parametrized polyline, which is dependent on the slackness parameter. With the low-degree polynomials and direct computation of control vertices, the method is computationally simple, and thus useful for interactive interpolation shape design and computer graphics applications.