High order approximation of rational curves by polynomial curves

  • Authors:
  • Michael S. Floater

  • Affiliations:
  • Centre of Mathematics for Applications, Department of Informatics, University of Oslo, Blindern, Oslo, Norway

  • Venue:
  • Computer Aided Geometric Design
  • Year:
  • 2006

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Abstract

We show that many rational parametric curves can be interpolated, in a Hermite sense, by polynomial curves whose degree, relative to the number of data being interpolated, is lower than usual. The construction unifies and generalizes the families of circle and conic approximations of Lyche and Mørken and the author in which the approximation order is twice the degree of the polynomial.