A method for the representation, evaluation and display of CSG models in PHIGS and PHIGS+

Manjula Patel

Research output: Contribution to journalArticle


The Programmer’s Hierarchical Interactive Graphics System (PHIGS) is about to become a standard graph- ics system’ which caters for the definition, display and modification of two and three-dimensional graphical data. PHIGS however, is mainly a wireframe system, and the PHIGS+ extensions to it have been put for- ward to allow the incorporation of shaded 3D graphics into PHIGS. One area that is important to a large constituency and which has so far not been considered in PHIGS and PHIGS+ is that of solid modelling. This paper addresses one aspect of solid modelling by describing a simple method for the representation, evaluation and display of Constructive Solid Geometry (CSG) models in PHIGS and PHIGS+.
Original languageEnglish
Pages (from-to)337-345
Number of pages9
JournalComputer Graphics Forum
Issue number4
Publication statusPublished - Dec 1989



  • solid modelling
  • PHIGS+
  • CSG models

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