Robust polygon modelling

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


The paper provides a set of algorithms for performing set operations on polygonal regions in the plane using standard floating-point arithmetic. The algorithms are robust, guaranteeing both topological consistency and numerical accuracy. Each polygon edge is modelled as an implicit or explicit polygonal curve which stays within some distance ß of the original line segment. If the curve is implicit, ß is bounded by a small multiple of the rounding unit. If the curves are explicit, the bound on ß may grow with the number of curves. One can mix implicit and explicit representations to suit the application.

Original languageEnglish (US)
Pages (from-to)546-566
Number of pages21
JournalComputer-Aided Design
Issue number9
StatePublished - Sep 1993
Externally publishedYes


  • algorithms
  • geometric modelling
  • polygons

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'Robust polygon modelling'. Together they form a unique fingerprint.

Cite this