| authors |
Nagakura, Takehiko |
| year |
1990 |
| title |
Shape Recognition and Transformation: A Script-Based Approach |
| source |
The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 149-170 |
| summary |
Design evolves. Architects deploy considerable knowledge to develop their designs from one stage to the next. Drawings play a major role in describing the 11 state" of design at each stage; however, they do not explicitly reveal the knowledge used to achieve the design, for the knowledge is concealed in the "process" between these stages rather than in the drawings themselves. This process involves parametric and schematic transformations as well as perception of unanticipated possibilities emerging from the drawings in progress. To make an impact on design, CAD must address these issues of design knowledge, but so far its focus has been instead on drawings as relatively static collections of graphic primitives. This paper introduces the concepts of shapes and shape transformation as fundamental aspects of design knowledge. It is implemented on a computer program in the form of a prototype shape-scripting language. In summary, this language works as a shell to encode a set of shape categories and their transformations, and it enables progressive shape recognition and shape transformation in line drawings. An appropriate set of these encoded transformations may represent a body of syntactic knowledge about an architectural style. This opens up the exciting possibility of a computational implementation of a shape grammar. |
| series |
CAAD Futures |
| full text |
 file.pdf (462,735 bytes) |
| references |
Content-type: text/plain
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Mitchell, W.J. (19??)
 Types and Vocabularies, Chapter 6 of The Logic of Architecture
, Cambridge, Mass. : MIT Press, in press
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Mitchell, W.J. (19??)
Formal Representations: a Foundation for Computer-aided Design
, Environment and Planning B 13:133-162
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Nagakura, T. (19??)
The Shape-scripting Language
, Cambridge, Mass manuscript in preparation
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Stiny, G. and Mitchell, W.J. (19??)
The Palladian Grammar
, Environment and Planning B 5:5-18
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| last changed |
1999/04/03 17:58 |
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