A constraint based feature modeller for sculptured object modelling

Authors:
C. K. Au;Matthew M. F. Yuen
Affiliations:
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.;Department of Mechanical Engineering, Hong Kong University of Science and Technology, Hong Kong
Venue:
International Journal of Computer Applications in Technology
Year:
2003

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Abstract

There are numerous discussions concerning feature modelling. Most of these studies concentrate on regular shaped object modelling. The objective of this paper is to extend feature-modelling coverage to include sculptured objects, so that feature technology is beneficial to modelling this class of objects. Feature modelling for a sculptured object consists of two basic elements features and modelling operations. Feature semantics are declared by means of constraints in a feature class specification. These constraints are instantiated by the modelling operations during the modelling session. A feature modeller for sculptured objects is designed to generate the feature model from these constraints. A validation mechanism is introduced in the modeller to maintain the semantics of the feature model.