Feature-based representational scheme of a solid modeler for providing dimensioning and tolerancing information

Utpal Roy, C. R. Liu

Research output: Contribution to journalArticlepeer-review

95 Scopus citations

Abstract

Presently available CAD data models have no problem handling the basic shape design of an object as required but they are not properly manufacturing-oriented. It is not possible to represent the dimensioning and tolerancing information or other technological information (such as material data, the surface roughness and accuracy data, feature information, etc.). This paper discusses the requirements of a new CAD data model and proposes a feature-based representation scheme based on the hybrid CSG/B-Rep data structure. This hybrid structure exploits the advantages of both CSG and B-Rep models in representing tolerance information. A relational graph structure (face-based data model of B-Rep) of the object is maintained at each hierarchical level of object construction for associating tolerance and other attributes.

Original languageEnglish (US)
Pages (from-to)335-345
Number of pages11
JournalRobotics and Computer Integrated Manufacturing
Volume4
Issue number3-4
DOIs
StatePublished - 1988
Externally publishedYes

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Mathematics(all)
  • Computer Science Applications
  • Industrial and Manufacturing Engineering

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