Contouring a bivariate quadratic polynomial over a triangle

A. J. Worsey, G. Farin

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We consider the problem of contouring a bivariate quadratic polynomial, defined as a triangular Bézier patch. The important cases where the contour has disjoint sections or is a closed curve are considered in detail. Our results lead to a simple, yet completely robust algorithm for describing contours as piecewise rational quadratic Bézier curves.

Original languageEnglish (US)
Pages (from-to)337-351
Number of pages15
JournalComputer Aided Geometric Design
Issue number1-4
StatePublished - Jun 1990


  • Contouring
  • conic sections
  • quadratic Bézier patch

ASJC Scopus subject areas

  • Modeling and Simulation
  • Automotive Engineering
  • Aerospace Engineering
  • Computer Graphics and Computer-Aided Design


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