A two-point G1 Hermite interpolating family of spirals

  • Authors:
  • D. S. Meek;D. J. Walton

  • Affiliations:
  • Department of Computer Science, University of Manitoba, Winnipeg, Canada R3T 2N2;Department of Computer Science, University of Manitoba, Winnipeg, Canada R3T 2N2

  • Venue:
  • Journal of Computational and Applied Mathematics
  • Year:
  • 2009

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Abstract

A one-parameter family of spirals that can match planar, two-point G^1 Hermite data is presented. These spirals can be used as an alternative to the biarc, which is also a one-parameter family of curves that can match two-point G^1 Hermite data. Some suggestions on choosing the free parameter of the family of spirals is given. It is shown that there is a unique G^1 Hermite interpolating spiral that passes through a given point in an allowable region. Three examples of the use of these spirals are given: curve completion with spirals, design with spirals, and approximation of the clothoid by spirals.