Breps as Displayable-Selectable Models in Interactive Design of Families of Geometric Objects.

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


In classical geometric modeling, the primary objects of interest are geometric pointsets, the primary representation scheme for which is the boundary representation (Brep). Modern geometric modeling focuses on parametric families of pointsets, defined using geometric operation graphs (GOGs), features and constraints. During interactive design of families of objects, users interact with an example object from the family. The example object is a pointset, hence is usually modeled using the Brep.

In this paper we study the issue of which modeling scheme is most appropriate for the example object. We identify two major operations which such a modeling scheme must support: displayandselection. Selection can be further decomposed into picking, invirant naming, and persistent naming. We introduce the term Displayable-Selectable Models (DS-models) as a generic term for models providing display and selection functionality. We discuss the suitability of Breps to serve as DS-models and whether other, perhaps simpler, representations could also serve as DS-models.
Original languageEnglish
Title of host publicationGeometric Modeling: Theory and Practice
Subtitle of host publicationThe State of the Art
PublisherSpringer Verlag
Number of pages20
ISBN (Electronic)978-3-642-60607-6
ISBN (Print)978-3-540-61883-6
StatePublished - 1997

Publication series

NameFocus on Computer Graphics


  • Geometric modeling
  • Solid modeling


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