Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	8bad
authors	Matalasov, Michael
year	1993
title	Technical Conception of Videosystems Laboratory at Moscow Institute of Architecture
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 47-50
summary	The basic point of our conception is not to submit the architect to technical means, but give him freedom of choice and the opportunity to work in the environment closest to the real one. In our situation it means, that we should provide work in real videoinformative space. Thus, our conception of education is to give all the junior students compulsory general information about videosimulation, and to ensure optional more professional work of undergraduates while carrying out their school projects. We consider, that in the architect’s activity simulation (making small-scale models) plays an essential part, because the small-scale model is the first and the only source of true three-dimensional information about the object designed. At the same time videosimulation does not deny or substitute computer-aided design. To get reliable visual information from the model is possible with the help of special technical means equipped with periscopic devices. In Moscow Institute of Architecture this work has been carried out for 10 years.
keywords	Architectural Endoscopy
series	EAEA
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	60f3
authors	Wright, Robert M. and Hoinkes, Rodney M.
year	1993
title	Computational Issues in Urban Design: Developing a Strategy for Solar Impact Assessment
source	CAAD Futures ‘93 [Conference Proceedings / ISBN 0-444-89922-7] (Pittsburgh / USA), 1993, pp. 543-555
summary	A comprehensive method for identifying the impacts on solar access of large scale architectural projects still continues to be an important and controversial area in city planning and urban design. Previous research studies such as the Sun Wind and Pedestrian Comfort, a study of Toronto's Central Area, demonstrated approaches possible when dealing with solar issues related to urban design. Existing techniques for solar inventory, analysis and evaluation, while effective, are often dependent on single event analysis (shadow casting) or manual procedures that are time consuming and exceedingly complex especially when needed for day-to-day use by planners or architects involved in complex urban projects. The Centre for Landscape Research has undertaken as part of its research to develop a computational approach that would help city urban designers evaluate and represent the issues of solar access in an urban setting. This paper will outline a series of computational methods developed to utilize an existing municipal digital data base and to describe complex issues of solar access in terms of urban form and context. A technique will be described that quantitatively assesses the total solar potential of a site as compared to changes in solar access due to different urban design proposals. Two-, three- and four-dimensional representation techniques are developed to facilitate understanding of the analysis to users such as city officials, the public, developers, etc.
keywords	Solar Assessment, Urban Design, Open Space, Modeling Visualization
series	CAAD Futures
last changed	1999/04/07 12:03

_id	20c1
authors	Alavalkama, Ilkka
year	1993
title	Technical Aspects of the Urban Simulator in Tampere University of Technology
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 35-46
summary	The colour video recording Urban Simulator in TUT was built very early compared with the development of video systems. A contract for planning the simulator electronics, mechanics and camera systems was made in january 1978 with two TUT students: Jani Granholm (computer science and engineering) and Ilkka Alavalkama (machine design and automation). Ease of control and maintenance were asked by side of ”human movement inside coloured small-scale architectural models”. From the beginning, all components of the system were carefully tested and chosen from various alternatives. Financial resources were quite limited, which lead to a long building process and to self-planned and produced mechanical and electronical elements. Some optical systems were constructed by using elements from various manufacturers.
keywords	Architectural Endoscopy
series	EAEA
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	4c30
authors	Aura, Seppo
year	1993
title	Episode as a Unit of Analysis of Movement
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 53-66
summary	Everybody who has read his Gordon Cullen or his Edmund H. Bacon knows that movement has long been recognized as a factor in environmental planning in many ways. For example, in the traditional Japanese promenade garden the importance of movement has always been appreciated. The promenader gains an intense experience of the succession, variation and rhythm of the surrounding scene. The spaces and paths lead him from one stage to another. The spatial structure of the Japanese promenade garden, as well as of traditional Japanese architecture in general, is joined most intensively to time and motion. The environment is in relation to the flow of change in many sense, both concretely and existentially. Taking an example of western urban environment. Here perhaps the most marked sequential spaces are to be found in small medieval, mediterranean towns. Thanks to their organic growth, narrow and winding streets and the emphasis on public squares, most of them provide exciting experiences if the observer is only interested in seeing the townscape from the point of view of movement. There are also examples of this kind of environment in Finland. In old wooden towns like Porvoo and Rauma one can still find varied and rhythmic streetscapes and networks of streets and squares, together with a human scale and an almost timeless atmosphere. One could say that such an opportunity to experience spaces sequentially, or as serial visions, is an important dimension for us, especially as pedestrians. And as Gordon Cullen has shown there is in any urban environment much scope to heighten this experience. For example, by creating a sense of ’entering in’ some place, ’leaving for’, ’moving towards’, ’turning into’, ’walking through’ some place or ’following on’ the flow of spaces. Or, as Edmund H. Bacon has said, the departure point of good town planning should be that the successive towns spaces give rise to a flow of harmonic experiences: present experiences merge with earlier ones and become a step towards a future. Or, again in the words of Donald Appleyard, Kevin Lynch and John R. Myer: “The experience of a city is basically of a moving view, and this is the view we must understand if we wish to reform the look of our cities”.
keywords	Architectural Endoscopy
series	EAEA
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	6737
authors	Casaus, A., Fargas, J. and Papuzian, P.
year	1993
title	Hybrid Design Environments - A Research Program on Creative Collaboration and Communication
doi	https://doi.org/10.52842/conf.ecaade.1993.x.a8h
source	[eCAADe Conference Proceedings] Eindhoven (The Netherlands) 11-13 November 1993
summary	This paper gives an overview of a research program initiated in the Architectural Design Department of the Escola Tècnica Superior d'Arquitectura de Barcelona on issues of communication and collaboration in computer aided design. The work is centered around emerging design situations which can be attributed directly to the incorporation of new technologies in education and practice. One of these is the "design triangle" composed of a traditional designer, a CAD workstation and a computer literate collaborator acting as the design medium. Another is the "virtual workshop" consisting of design collaboration involving large-scale distributed communications networks. The research program stresses three common characteristics of these situations which it aims to study in parallel in the setting of an design workshop. The first of these is the characteristic of distance, both physical and conceptual, which separates, on the one hand, the traditional designer from the CAD document and, on the other, the participants of a distributed workshop from each other and each others' thinking. The second, is the typically hybrid nature of such situations where computer technology interacts with more traditional techniques and alternative media are combined both at the level of production and in channels and modes of communication. And finally, the third and most significant for the methodology of the research program, is the fact that both the design triangle and the virtual workshop make explicit aspects of design activity, interaction and intentions which remain hidden or are only implicit in traditional designing.
series	eCAADe
email
last changed	2022/06/07 07:50

_id	2a5e
authors	Does, J. van der and Giró, H.
year	1997
title	Design communication and image processing
source	Architectural and Urban Simulation Techniques in Research and Education [Proceedings of the 3rd European Architectural Endoscopy Association Conference / ISBN 90-407-1669-2]
summary	In the proceedings of the first EAEA conference, 1993, I mentioned our first study focused on refining endoscopic video images of a detailed architectural model and drawings. The study was based on work with 900 subjects, of which 200 were professional architects. It has led to a number of technical improvements. In the second study we compared computer-aided design techniques with two techniques from the first study, endoscopic video recordings and coloured and black and white elevations and perspective drawings. Four different groups of 50 subjects took part in this research. We found that computer images are invariably judged to be of moderate value, while drawings yielded consistently high scores. Endoscopic video recordings of the scale model received high scores as far as emotional response is concerned, and moderate scores when the participants were questioned on the actual content of the recordings.
keywords	Architectural Endoscopy, Endoscopy, Simulation, Visualisation, Visualization, Real Environments
series	EAEA
email
more	http://www.bk.tudelft.nl/media/eaea/eaea97.html
last changed	2005/09/09 10:43

_id	25de
authors	Ervamaa, Pekka
year	1993
title	Integrated Visualization
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 157-160
summary	The Video and Multimedia studio at VTT, Technical Research Centre of Finland, started with endoscopy photography of scale models. Video recordings has been made since 1985 and computer graphic since 1989. New visualization methods and techniques has been taken into use as a part of research projects, but mainly we have been working with clients commissions only. Theoretical background for the visualizations is strong. Research professor Hilkka Lehtonen has published several papers concerning the theory of visualization in urban planning. This studio is the only professional level video unit at Technical Research Centre, which is a large polytechnic research unit. We produce video tapes for many other research units. All kind of integrated methods of visualization are useful in these video productions, too.
keywords	Architectural Endoscopy
series	EAEA
email
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	caadria2003_a5-1
id	caadria2003_a5-1
authors	Knight, Michael W. and Brown, Andre G.P.
year	2003
title	NAVRgate X, A Naturalistic Navigation Metaphor for Large Scale Virtual Environments
doi	https://doi.org/10.52842/conf.caadria.2003.625
source	CAADRIA 2003 [Proceedings of the 8th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 974-9584-13-9] Bangkok Thailand 18-20 October 2003, pp. 625-630
summary	This paper describes the latest in a series of real-world, low-cost interfaces for virtual reality. nAVRgate (the AVR being Architectural Virtual Reality) has looked at real-world analogies for interfacing with 'real' virtual environments in an attempt to improve the sense of presence, the phenomenon of sense of presence in virtual environments (VEs) often being seen as the real essence of Virtual Reality (Laurel, 1993)
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	69b3
authors	Markelin, Antero
year	1993
title	Efficiency of Model Endoscopic Simulation - An Experimental Research at the University of Stuttgart
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 31-34
summary	At the Institute of Urban Planning at the University of Stuttgart early experiments were made with the help of endoscopes in the late 1970’s. The intention was to find new instruments to visualize urban design projects. The first experiment included the use of a 16 mm film of a 1:170 scale model of the market place at Karlsruhe, including design alternatives (with trees, without trees etc). The film was shown to the Karlsruhe authorities, who had to make the decision about the alternatives. It was said, that the film gave a great help for the decision-making and a design proposition had never before been presented in such understandable way. In 1975-77, with the support of the Deutsche Forschungsgemeinschaft (German Research Foundation) an investigation was carried out into existing endoscopic simulation facilities, such as those in Wageningen, Lund and Berkeley. The resulting publication was mainly concerned with technical installations and their applications. However a key question remained: ”Can reality be simulated with endoscopy?” In 1979-82, in order to answer that question, at the Institute was carried out the most extensive research of the time, into the validity of endoscopic simulation. Of special importance was the inclusion of social scientists and psychologists from the University of Heidelberg and Mannheim. A report was produced in 1983. The research was concerned with the theory of model simulation, its ways of use and its users, and then the establishment of requirements for effective model simulation. For the main research work with models or simulation films, psychological tests were developed which enabled a tested person to give accurate responses or evidence without getting involved in alien technical terminology. It was also thought that the use of semantic differentials would make the work imprecise or arbitrary.
keywords	Architectural Endoscopy
series	EAEA
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	21f1
authors	Martens, Bob
year	1993
title	A Renaissance of Architectural Endoscopy?
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 143-152
summary	Before individual activities in the field of endoscopy are to be explained a brief insight into the surrounding thereof may prove meaningful. At the Department for Spatial Simulation endoscopy is not treated independently, but principally in connection with other simulation techniques such as the simulation of architectural spatial formations in full-scale, CAAD, stereoscopy and holography. The term SAAD (Simulation Aided Architectural Design) refers to a combination of spatial simulation techniques. This aspect plays a major role at the Vienna University of Technology.
keywords	Architectural Endoscopy
series	EAEA
email
more	http://info.tuwien.ac.at/eaea/Renaissance/rae.html
last changed	2005/09/09 10:43

_id	96a9
authors	Mullet, Kevin and Sano, Darrell
year	1993
title	Applying Visual Design: Trade Secrets for Elegant Interfaces Tutorials
source	Proceedings of ACM INTERCHI'93 Conference on Human Factors in Computing Systems -- Adjunct Proceedings 1993 p. 230
summary	Objective: This tutorial is designed to increase the participant's awareness of visual and aesthetic issues and provide practical techniques (not guidelines) for achieving elegant user interfaces, information displays, and data visualisations. The emphasis is on avoiding a number of mistakes seen repeatedly in commercial products. Content: This tutorial will focus on the core competencies or "tricks of the trade" that all visual designers internalise as part of their basic training. The tutorial is organised not along the traditional graphic design specialisations, such as typography or colour, but according to the design goals and familiar problems of real-world product development. Specific content areas will include elegance and simplicity; scale, contrast and proportion; organisation and visual structure; module and programme; image and representation; and style. The communication-oriented design aesthetic seen in graphic design, industrial design, and architecture can be applied very successfully to graphical user interfaces, data displays, and multimedia. Design rules provided will be illustrated with extensive visual examples drawn from the international design communities as well as from the HCI domain.
series	other
last changed	2002/07/07 16:01

_id	87d2
authors	Serrano, J.G., Coll, J., Melero, J.C. and Burry, Mark
year	1993
title	The Need to Step Beyond Conventional Architectural Software
doi	https://doi.org/10.52842/conf.ecaade.1993.x.v0u
source	[eCAADe Conference Proceedings] Eindhoven (The Netherlands) 11-13 November 1993
summary	The Sagrada Familia Church has appointed two groups of consultants to assist the translation of Gaudi's 1:10 scaled models of the nave into coherent information from which to build. One team has been undertaking the static analysis of the nave roof vault structure and the other the study of the complexities of Gaudi's composition in order to provide full-scale production templates and models for the walls. Both teams had begun using the same basic CAD package and both have had to move onto high-end and very expensive solid-modelling software normally used by mechanical engineers and vehicle designers. Both groups are collaborating together with different accents despite an improbable geographical separation. The original problem, one of intersecting ruled-surfaces accurately to reflect the geometries of the surviving fragments of the original models, has led to surprising possibilities which were not anticipated at the outset. Currently the potential of parametric variation and associative geometries are being investigated as a mirror for some of the intuitive design process and finite element analysis is being considered as a means of interactively analysing the structural implications for each study. The software being used also has a powerful ray-tracing module; rather than being simply a tool to produce eye-catching 'realistic' renderings it has proved to be invaluable in allowing the computer user to understand the spatial complexities of the components being studied. This paper discusses the merits of an architecture so demanding (despite having been designed at the beginning of this century) that it requires the most costly equipment in today's market and it will consider the proposition that in ordinary circumstances, an architecture too complex to be described using basic CAD tools is an architecture beyond our reach. The interdisciplinary nature of the diverse and powerful modules within the software referred to will be used to contest this proposition using the presence of both teams in schools of architecture as evidence.
series	eCAADe
last changed	2022/06/07 07:50

_id	4cd5
authors	Thiel, Philip
year	1993
title	A Better Understanding of The Role of Endoscopy as a Tool in Architecture
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 123-128
summary	As the most tool-dependent species on our planet, our technology determines our activities and thus defines our existence. Because of this a clear understanding of the ends-means relationship of our tools is of critical social- and professional-concern. Endoscopy, or the use of periscopic-like devices to extract human eye-level visual images, static or dynamic, from iconic scale models of proposed environments, is a case in point. Use is appropriate at advanced stages of planning and design, when such experiential simulations are necessary for both professional evaluation and lay approval. But note that the simulation is only a means to an end, and that the fundamental purpose is to evoke a response to a proposal. Simulation and response are opposite sides of the same coin, and the response is the goal. Any such responses are meaningful only with reference to the ultimate users’ experiential preferences, preferably explicitly established as ”performance specifications” before the start of the design process in consultation with a representative sample of these people. This implies the necessity of a means to identify these beneficiaries of our work, and a means to characterize their environmental ”experiential profiles”. It also requires a means for the discursive scripting of their experiential preferences. The development of a design oriented to the achievement of these ends then depends on a similar time-based scoring for the description of sequentially-experienced environmental attributes, hypothesized as related to these responses. Endoscopy then takes its place as the means for a penultimate check on the experiential design-hypotheses, in conjunction with suitable means to record the simulates’ responses in the same format as the original experiential performance specifications, for comparison therewith. The danger in being the most tool-dependent species on Earth is that in our necessary concern with technological means we may loose sight of our ultimate human ends; as suggested by the apothegm ”the operation was a success, but the patient died”. Our inexorable impetus toward technological development means that the specialized training that is inherent in professional education tends to separate and distance the perceptions of those so conditioned from those of the many others who are the presumed beneficiaries of their efforts.
keywords	Architectural Endoscopy
series	EAEA
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	e80e
authors	Van der Does, Jan
year	1993
title	Visualising by Means of Endoscope, Computer and Hand-Drawn Techniques
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 167-180
summary	Traditionally, communication during the various stages of the building process takes place via drawings of floor plans, elevations, perspectives and scale models. Computerized drawing techniques have recently come into use. Ways of presenting designs have increasingly become of far-reaching importance in current architecture. Nowadays architectural firms employ specialists who are familiar with the latest developments in the field of presentation techniques, or they farm this highly significant part of their job out to gifted designers. Some of the new techniques being developed endeavor to provide a more realistic presentation of designs of housing estates. Apart from new drawing techniques, mention should also be made of the endoscope, an instrument which can simulate an eye-level tour around a scale model while recording it on videotape. Realistic representations differ quite a lot from the conventional architectural presentation techniques applied, which require a larger amount of imagination on the part of the onlookers. The afore mentioned architectural notation systems, on the one hand, can only be understood by experts, in spite of added explanatory signs and symbols. The often used models and artist’s impressions, on the other hand, frequently create a somewhat distorted view, due to lack of concern for spatial proportions. As a consequence, the design presented and the actual architectural realisation may turn out to differ widely. To bridge the widening gap between the experts and the users, clients and government officials, research concerning architectural representation is needed. In 1990 a Dutch scientific journal, issued by The Delft University, published an illustrated report of research findings under the title Overdracht en Simulatie (Information and Simulation). The article gives a description of a pilot study carried out by a research team (Van Der Does, Van Haaften, Kegel and Vrins) to assess and evaluate various presentation techniques used in architecture. This study was just a first step towards a more detailed follow-up study, to which I shall come back after having given a summarized view of the pilot study.
keywords	Architectural Endoscopy
series	EAEA
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	0ab2
authors	Amor, R., Hosking, J., Groves, L. and Donn, M.
year	1993
title	Design Tool Integration: Model Flexibility for the Building Profession
source	Proceedings of Building Systems Automation - Integration, University of Wisconsin-Madison
summary	The development of ICAtect, as discussed in the Building Systems Automation and Integration Symposium of 1991, provides a way of integrating simulation tools through a common building model. However, ICAtect is only a small step towards the ultimate goal of total integration and automation of the building design process. In this paper we investigate the next steps on the path toward integration. We examine how models structured to capture the physical attributes of the building, as required by simulation tools, can be used to converse with knowledge-based systems. We consider the types of mappings that occur in the often different views of a building held by these two classes of design tools. This leads us to examine the need for multiple views of a common building model. We then extend our analysis from the views required by simulation and knowledge-based systems, to those required by different segments of the building profession (e.g. architects, engineers, developers, etc.) to converse with such an integrated system. This indicates a need to provide a flexible method of accessing data in the common building model to facilitate use by different building professionals with varying specialities and levels of expertise.
series	journal paper
email
last changed	2003/05/15 21:22

_id	2ff9
id	2ff9
authors	Ataman, Osman
year	1993
title	Knowledge-based Stair Design
doi	https://doi.org/10.52842/conf.acadia.1993.163
source	Education and Practice: The Critical Interface [ACADIA Conference Proceedings / ISBN 1-880250-02-0] Texas (Texas / USA) 1993, pp. 163-171
summary	The application of computer--based technique to support architectural design has often concentrated on matters of representation. Typically, this means computer-aided drafting, and less frequently, computer-aided modeling and visualization. The promise of new computer-based tools to support the process of design has thus far failed to produce any significant tool that has had a widespread impact on the architectural profession. Most developments remain in university based research labs where they are used as teaching instruments in CAD courses or less often in design studios. While there are many reasons for this lack of dissemination, including a reluctance on the part of the architectural profession itself, the primary obstacles deal with difficulties in explicating design knowledge, representing this knowledge in a manner that can be used for design, and providing an intuitive and effective user interface, allowing the designer to easily use the tool for its intended purpose. This study describes a system that has been developed to address a number of these issues. Based on research findings from the field of Artificial Intelligence which expounds on the need for multiple techniques to represent any complex area of knowledge, we have selected a particular approach that focuses on multiple techniques for design representation. We review this approach in depth by considering its many facets necessary when implementing a knowledge-based system. We then partially test the viability of this approach through a small case study, implementing a knowledge-based system for designing stairs. While this effort only deals with a small part of the total design process, it does explore a number of significant issues facing the development of computer-based design assistants, and suggests several techniques for addressing these concerns.
series	ACADIA
email
last changed	2022/06/07 07:54

_id	cb25
authors	Benedikt, M.
year	1993
title	Cityspace, Cyberspace, and The Spatiology of Information
source	Boyer,C. & Gandelsonas.,M. The New Urbanism Princeton University Press
summary	The concept of space has been critical to architectural theory for over seventy years now. It remains however, an elusive idea, on the one hand meaning and referring to everything, on the other hand meaning and referring to nothing. Why? Is it because "space," like "time," is a category outside of which thinking itself seems to be impossible, just as Kant asserted? Is it simply one of those irreducible, universal without which the world as such would cease to in any sense, let alone be of, or perceived by, sentient beings givens be thought Certainly to suggest that space itself is an active, causative agent of some sort risks opening that discussion up to universalizing of the most extreme and vacuous kind. For if I am not to be a dualist, positing a separate, a-spatial and a-temporal realm for thought and feeling, then what in the real world, I can easily ask, occupies neither space nor time? What is it that cannot be reduced, be analyzed, or be spoken of finally in the language of position, duration, connection, inclusion, transformation, and so forth? Nothing. If we wish to reach deeply into the "nature" of "space itself" then, I believe we must allow into it, as it were, of some sort: not the aether of Nineteenth century science perhaps, but a registering, tracing, questioning, remembering substance, spread as thinly as we can imagine but present nonetheless, and definitive of versus because of how it pools, how it vibrates, how it scatters difference, a substance here there difference.
series	other
last changed	2003/11/21 15:16

_id	4abb
authors	Carlson, Christopher
year	1993
title	Describing Spaces of Rectangular Dissections via Grammatical Programming
source	CAAD Futures ‘93 [Conference Proceedings / ISBN 0-444-89922-7] (Pittsburgh / USA), 1993, pp. 143-158
summary	For the description of design spaces, grammatical programs offer several advantages over conventional grammars: (1) they integrate rewrite rules with more general non-deterministic functions, (2) they permit a range of programming styles from purely declarative to purely procedural, (3) they can describe spaces Of constrained, parametric designs, and (4) they permit design space descriptions to be developed modularly. We demonstrate these features of grammatical programming by way of a simple example that generates spaces of rectangular dissections.
keywords	Generative Systems, Grammars, Design Spaces, Functional Logic Programming
series	CAAD Futures
last changed	1999/04/07 12:03

_id	53da
authors	Carlson, Christopher
year	1993
title	Grammatical programming : an algebraic approach to the description of design spaces
source	Carnegie Mellon University
summary	The intuitiveness of spatial grammars makes them an attractive method of describing spaces of design. But grammars suffer from several inadequacies that limit their usefulness in design practice: (1) they cannot describe spaces of parametric, constrained designs, (2) they provide no control mechanisms for sequencing sets of rules, (3) they provide no 'subroutines' for dealing with complexity, and (4) they do not accommodate transformation mechanisms other than the rewrite rule. All of these inadequacies my [sic] be remedied by embedding grammars in a larger framework of nondeterministic functional programming, a paradigm we call 'grammatical programming.' In grammatical programs, rewrite rules are obtained from arbitrary nondeterministic functions by means of a 'rewrite closure' operator. Both rules and the designs they operate upon may be parametric and have attached constraints, permitting grammatical programs to describe spaces of parametric, constrained designs. Rewrite rules, and more generally, nondeterministic functions, are combined into compound functions by means of the operators of a control algebra, which provides functional composition, union, iteration, and a type of negation called 'failure.' The resulting modularity permits design space descriptions to be constructed, tested, and debugged piecewise, and to draw upon libraries of standard, debugged grammatical components. We begin this dissertation with an informal introduction to grammatical programming. We then give a formal, implementation-independent semantics of grammatical programs similar to the semantics of stratified logic programs. We discuss the implementation of a prototype compiler/interpreter and present case studies of the use of the prototype in describing spaces of rectangular dissections and a style of early Gothic traceries. We conclude with a discussion of lessons learned from the case studies and an agenda of further research necessary to make grammatical programming a useful tool in design practice.
series	thesis:PhD
last changed	2003/02/12 22:37

_id	97e7
authors	Carter, K.
year	1993
title	Computer aided design: back to the drawing board
source	Proc. of Creativity and Cognition, Loughborough, April
summary	This paper argues that the role of Computer Aided Design (CAD) should be to enhance and extend paper-based working, rather than to replace it. Current CAD tools are little used in the early stages of designing. Paper is heavily used, with its physical properties supporting work practices that are not possible with CAD. This paper presents implications for the design of new computer-based tools drawn from observations of designers' work practices. A new system is described that integrates paper-based and computer-based working in the same physical space and supports the application of computation to images on paper.
series	other
last changed	2003/04/23 15:50

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