Abstract
Conventional CAD systems have made significant contributions towards the detailed modelling and analysis of geometric designs, but are generally incapable of supporting the early conceptualisation and synthesis stages of design. To overcome this weakness, these systems need to improve in several areas: (a) they should be able to support designers in establishing geometric models using vague geometric information; (b) suitable manipulations should be available to evolve vague geometric models towards the final definite design; and (c) while using the systems, the designers should not need to alter their course of design unnecessarily or unnaturally. This paper discusses these key requirements based on experience from developing a prototype system for early geometric configuration design. Geometric information, manipulations and the corresponding design process are examined and classified. Finally, brief description is given on the geometric configuration system being developed to explore these requirements.
Chapter PDF
Similar content being viewed by others
Keywords
References
Andreason, M. M. and Olesen, J. (1990) The concept of dispositions. Journal of Engineering Design, 1.
Blum, H. (1967) A transformation for extracting new descriptors of shape. Models for the Perception of Speech and Visual Form, Wathen-dunn, W. (ed. ), MIT Press.
Chern, J-H, Gursoz, E. L., Prinz, F. B. and Hall, M. A. (1990) Geometric abstractions using medial axis transformation. Proceedings of Manufacturing Internation’90, 25–28 March, Atlanta, GA, USA, 1, 51–56.
Duffy, A. H. B, Persidis A. and MacCallum, K. J. (1996) NODES - A numerical and object based modelling system for conceptual engineering design“, to be published in International Journal on Knowledge Based Systems, Elsevier pbs, May 1996.
Dutta, D. and Hoffmann, C. M. (1990) A geometric investigation of the skeleton of CSG objects. Advances in Design Automation 1990, Ravani, B. (ed.), 1, 67–75.
Guan, X. and MacCallum, K. J. (1995) Modelling of vague and precise geometric information for supporting the entire design process. Knowledge Intensive CAD-1, Tomiyama, T., Mintyla and Finger, S., Eds., Preprints of the 1st IFIP WG5.2 Workshop, 301–319. IFIP.
Guan, X., MacCallum, K. J. and Duffy, A. H. B. (1996) A prototype system for supporting the incremental modelling of vague geometric configurations. Submitted to AIEDAM Special Issue on Geometric Representation and Reasoning in Design.
National Research Council (1991) Improving Engineering Design: Designing for Competitive Advantage, Committee on Engineering Design Theory and Methodology, Manufacturing Studies Board.
Patrikalakis, N. M. and Gursoy, H. N. (1990) Shape interrogation by medial axis transformation. Advances in Design Automation 1990, Ravani, B. (ed.), 1, 77–88.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1997 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Guan, X., MacCallum, K.J., Duffy, A.H.B. (1997). Classification of Geometric Design Information and Manipulation for Vague Geometric Modelling. In: Mäntylä, M., Finger, S., Tomiyama, T. (eds) Knowledge Intensive CAD. KIC 1996. IFIP — The International Federation for Information Processing. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35192-6_14
Download citation
DOI: https://doi.org/10.1007/978-0-387-35192-6_14
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-5634-0
Online ISBN: 978-0-387-35192-6
eBook Packages: Springer Book Archive