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	64b8
authors	Grabowski, M. and Barner, K.
year	1998
title	Data Visualization Methods for the Blind using Force Feedback and Sonification
source	Stein, M. (Ed.). Telemanipulator and Telepresence Technologies V. Vol. 3524
summary	Research in the field of scientific visualization has begun to articulate systematic methods for mapping data to a perceivable form. Most work in this area has focused on the visual sense. For blind people in particular, systematic visualization methods which utilize other sense need further development. In this work we develop methods for adding aural feedback to an existing haptic force feedback interface to create a multimodal visualization system. We examine some fundamental components of a visualization system which include the following: characterization of the data, definition of user directives and interpretation aims, cataloging of sensual representations of information, and finally, matching the data and user interpretation aims with the appropriate sensual representations. We focus on the last two components as they relate to the aural and haptic sensor. Cataloging of sensual representations is drawn form current research in sonification and haptics. The matching procedure can be thought of as a type of encoding which should be the inverse of the decoding mechanism of our aural and haptic systems. Topics in human perception are discussed, and issues related to the interaction between the two sensor are addressed. We have implemented a visualization system in the from of a Windows NT application using a sound card and a 3 DOF point interaction haptic interface. The system present a 2D data set primarily as a polygonal haptic surface although other capabilities of the haptic sensor are utilized such as texture discernment. In addition, real time aural feedback is presented as the user explores the surface. Parameters of sound such as pitch and spectral content are used to convey information. Evaluation of the system's effectiveness as an assistive technology for the blind reveals that combining aural and haptic feedback improves visualization over using either of the two senses alone.
series	other
last changed	2003/04/23 15:14

_id	ddss9811
id	ddss9811
authors	Barbanente, A., Conte, E. and Monno, V.
year	1998
title	Changing trends and approaches in human and computer modelling for social housing policies
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	The paper discusses conceptual issues, goals and preliminary results of an on-going research which aims at building a Decision Support System for public housing environmental oriented maintenance and management in a city in Southern Italy, Bari. Traditional post-war Italian housing policies are compared with more recent approaches in the field, pointing out the change from quantitative, aggregated, more simple building problems and relatedapproaches to qualitative, differentiated, complex ones integrating social, economic and environmental dimensions with the aim of regenerating deteriorated residential areas. The paper claims for the need shift, both in the human and computer areas, from traditional quantitative models to new approaches able to manage also qualitative variables, temporal dynamics, emergencies, and intentionality, since they appear key aspects of the real world to be modelled. The housing estate of Bari and its needs of maintenance and management are examined, eliciting essential related knowledge using the interview technique. The clear orientation towards sustainable policies for urban regeneration, at a local, national, and Community level, is also considered. The innovative and collaborative nature of such policies and the attention to be paid to the social aspects ofthe problem require a complex DSS, integrating various kind of hypertexts, information systems and case-based fuzzy expert systems, whose main aims, functions, software and general organisation are outlined in the paper.
series	DDSS
last changed	2003/11/21 15:16

_id	avocaad_2001_02
id	avocaad_2001_02
authors	Cheng-Yuan Lin, Yu-Tung Liu
year	2001
title	A digital Procedure of Building Construction: A practical project
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	In earlier times in which computers have not yet been developed well, there has been some researches regarding representation using conventional media (Gombrich, 1960; Arnheim, 1970). For ancient architects, the design process was described abstractly by text (Hewitt, 1985; Cable, 1983); the process evolved from unselfconscious to conscious ways (Alexander, 1964). Till the appearance of 2D drawings, these drawings could only express abstract visual thinking and visually conceptualized vocabulary (Goldschmidt, 1999). Then with the massive use of physical models in the Renaissance, the form and space of architecture was given better precision (Millon, 1994). Researches continued their attempts to identify the nature of different design tools (Eastman and Fereshe, 1994). Simon (1981) figured out that human increasingly relies on other specialists, computational agents, and materials referred to augment their cognitive abilities. This discourse was verified by recent research on conception of design and the expression using digital technologies (McCullough, 1996; Perez-Gomez and Pelletier, 1997). While other design tools did not change as much as representation (Panofsky, 1991; Koch, 1997), the involvement of computers in conventional architecture design arouses a new design thinking of digital architecture (Liu, 1996; Krawczyk, 1997; Murray, 1997; Wertheim, 1999). The notion of the link between ideas and media is emphasized throughout various fields, such as architectural education (Radford, 2000), Internet, and restoration of historical architecture (Potier et al., 2000). Information technology is also an important tool for civil engineering projects (Choi and Ibbs, 1989). Compared with conventional design media, computers avoid some errors in the process (Zaera, 1997). However, most of the application of computers to construction is restricted to simulations in building process (Halpin, 1990). It is worth studying how to employ computer technology meaningfully to bring significant changes to concept stage during the process of building construction (Madazo, 2000; Dave, 2000) and communication (Haymaker, 2000).In architectural design, concept design was achieved through drawings and models (Mitchell, 1997), while the working drawings and even shop drawings were brewed and communicated through drawings only. However, the most effective method of shaping building elements is to build models by computer (Madrazo, 1999). With the trend of 3D visualization (Johnson and Clayton, 1998) and the difference of designing between the physical environment and virtual environment (Maher et al. 2000), we intend to study the possibilities of using digital models, in addition to drawings, as a critical media in the conceptual stage of building construction process in the near future (just as the critical role that physical models played in early design process in the Renaissance). This research is combined with two practical building projects, following the progress of construction by using digital models and animations to simulate the structural layouts of the projects. We also tried to solve the complicated and even conflicting problems in the detail and piping design process through an easily accessible and precise interface. An attempt was made to delineate the hierarchy of the elements in a single structural and constructional system, and the corresponding relations among the systems. Since building construction is often complicated and even conflicting, precision needed to complete the projects can not be based merely on 2D drawings with some imagination. The purpose of this paper is to describe all the related elements according to precision and correctness, to discuss every possibility of different thinking in design of electric-mechanical engineering, to receive feedback from the construction projects in the real world, and to compare the digital models with conventional drawings.Through the application of this research, the subtle relations between the conventional drawings and digital models can be used in the area of building construction. Moreover, a theoretical model and standard process is proposed by using conventional drawings, digital models and physical buildings. By introducing the intervention of digital media in design process of working drawings and shop drawings, there is an opportune chance to use the digital media as a prominent design tool. This study extends the use of digital model and animation from design process to construction process. However, the entire construction process involves various details and exceptions, which are not discussed in this paper. These limitations should be explored in future studies.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	ga9811
id	ga9811
authors	Feuerstein, Penny L.
year	1998
title	Collage, Technology, and Creative Process
source	International Conference on Generative Art
summary	Since the turn of the twentieth century artists have been using collage to suggest new realities and changing concepts of time. Appropriation and simulation can be found in the earliest recycled scraps in Cubist collages. Picasso and Braque liberated the art world with cubism, which integrated all planes and surfaces of the artists' subjects and combined them into a new, radical form. The computer is a natural extension of their work on collage. The identifying characteristics of the computer are integration, simultaneity and evolution which are inherent in collage. Further, the computer is about "converting information". There is something very facinating about scanning an object into the computer, creating a texture brush and drawing with the object's texture. It is as if the computer not only integrates information but different levels of awareness as well. In the act of converting the object from atoms to bits the object is portrayed at the same conscious level as the spiritual act of drawing. The speed and malleability of transforming an image on the computer can be compared to the speed and malleability of thought processes of the mind. David Salle said, "one of the impulses in new art is the desire to be a mutant, whether it involves artificial intelligence, gender or robotic parts. It is about the desire to get outside the self and the desire to trandscend one's place." I use the computer to transcend, to work in different levels of awareness at the same time - the spiritual and the physical. In the creative process of working with computer, many new images are generated from previous ones. An image can be processed in unlimited ways without degradation of information. There is no concept of original and copy. The computer alters the image and changes it back to its original in seconds. Each image is not a fixed object in time, but the result of dynamic aspects which are acquired from previous works and each new moment. In this way, using the computer to assist the mind in the creative processes of making art mirrors the changing concepts of time, space, and reality that have evolved as the twentieth century has progressed. Nineteenth-century concepts of the monolithic truth have been replaced with dualism and pluralism. In other words, the objective world independent of the observer, that assumes the mind is separate from the body, has been replaced with the mind and body as inseparable, connected to the objective world through our perception and awareness. Marshall Mcluhan said, "All media as extensions of ourselves serve to provide new transforming vision and awareness." The computer can bring such complexities and at the same time be very calming because it can be ultrafocused, promoting a higher level of awareness where life can be experienced more vividly. Nicholas Negroponte pointed out that "we are passing into a post information age, often having an audience of just one." By using the computer to juxtapose disparate elements, I create an impossible coherence, a hodgepodge of imagery not wholly illusory. Interestingly, what separates the elements also joins them. Clement Greenberg states that "the collage medium has played a pivotal role in twentieth century painting and sculpture"(1) Perspective, developed by the renaissance archetect Alberti, echoed the optically perceived world as reality was replaced with Cubism. Cubism brought about the destruction of the illusionist means and effects that had characterized Western painting since the fifteenth century.(2) Clement Greenberg describes the way in which physical and spiritual realities are combined in cubist collages. "By pasting a piece of newspaper lettering to the canvas one called attention to the physical reality of the work of art and made that reality the same as the art."(3) Before I discuss some of the concepts that relate collage to working with computer, I would like to define some of the theories behind them. The French word collage means pasting, or gluing. Today the concept may include all forms of composite art and processes of photomontage and assemblage. In the Foreword on Katherine Hoffman's book on Collage Kim Levin writes: "This technique - which takes bits and pieces out of context to patch them into new contexts keeps changeng, adapting to various styles and concerns. And it's perfectly apt that interpretations of collage have varied according to the intellectual inquiries of the time. From our vantage point near the end of the century we can now begin to see that collage has all along carried postmodern genes."(4) Computer, on the other hand is not another medium. It is a visual tool that may be used in the creative process. Patrick D. Prince's views are," Computer art is not concrete. There is no artifact in digital art. The images exist in the computer's memory and can be viewed on a monitor: they are pure visual information."(5) In this way it relates more to conceptual art such as performance art. Timothy Binkley explains that,"I believe we will find the concept of the computer as a medium to be more misleading than useful. Computer art will be better understood and more readily accepted by a skeptical artworld if we acknowledge how different it is from traditional tools. The computer is an extension of the mind, not of the hand or eye,and ,unlike cinema or photography, it does not simply add a new medium to the artist's repertoire, based on a new technology.(6) Conceptual art marked a watershed between the progress of modern art and the pluralism of postmodernism(7) " Once the art is comes out of the computer, it can take a variety of forms or be used with many different media. The artist does not have to write his/her own program to be creative with the computer. The work may have the thumbprint of a specific program, but the creative possibilities are up to the artist. Computer artist John Pearson feels that,"One cannot overlook the fact that no matter how technically interesting the artwork is it has to withstand analysis. Only the creative imagination of the artist, cultivated from a solid conceptual base and tempered by a sophisticsated visual sensitivity, can develop and resolve the problems of art."(8) The artist has to be even more focused and selective by using the computer in the creative process because of the multitude of options it creates and its generative qualities.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	aac0
authors	Garcia, Renato
year	1998
title	Structural Feel or Feelings for Structure? - Stirring Emotions through the Computer Interface in Behaviour Analysis of Building Structures
doi	https://doi.org/10.52842/conf.caadria.1998.163
source	CAADRIA ‘98 [Proceedings of The Third Conference on Computer Aided Architectural Design Research in Asia / ISBN 4-907662-009] Osaka (Japan) 22-24 April 1998, pp. 163-171
summary	The use of computers in the analysis of architectural structures has at present become indispensable and fairly routine. Researchers & professionals in architecture and engineering have taken advantage of current computer technology to develop richer and more comprehensive interactive interfaces in systems designed to analyse structural behaviour. This paper discusses a research project which attempts to further enrich such computer interfaces by embodying emotion or mood (affective) components into them and assessing the effects of incorporating these into multimodal learning modules for students of architecture at the University of Hong Kong. Computer structural analysis is most often used to determine the final state of a structure after full loading, but can also be used very ably to depict the time-history behaviour of a structure. The time-dependent nature of this process of behaviour provides an excellent opportunity to incorporate emotion cues for added emphasis and reinforcement. Studying time-history behaviour of structures is a vital part of classroom learning in structures and this why such emotion cues can have significant impact in such an environment. This is in contrast to the confines of professional engineering practices where these cues may not be as useful or desirable because oftentimes intermediate time history data is bypassed as a blackbox and focus is placed primarily on bottomline analysis results. The paper will discuss the fundamental basis for the establishment of emotional cues in this project as well as it's implementation-which consists mainly of two parts. The first involves 'personifying' the structure by putting in place a structure monitoring system analogous to human vital signs. The second involves setting up a 'ladder' of emotion states (which vary from feelings of serenity to those of extreme anxiety) mapped to the various states of a structures stability or condition. The paper will further elaborate on how this is achieved through the use of percussion, musical motifs, and chord progression in resonance with relevant graphical animations. Initially in this project, emotion cues were used to reinforce two structural behaviour tutoring systems developed by this author (3D Catenary Stuctures module & Plastic Behaviour of Semi-rigid Steel Frames module). These modules were ideal for implementing these cues because both depicted nonlinear structural behaviour in a mainly time-history oriented presentation. A brief demonstration of the actual learning modules used in the project study will also be presented together with a discussion of the assessment of it's effectiveness in actual classroom teaching.
keywords	Affective Interfaces, Human-Computer Interaction, Computer-Aided-Engineering
series	CAADRIA
email
more	http://www.caadria.org
last changed	2022/06/07 07:50

_id	ga9809
id	ga9809
authors	Kälviäinen, Mirja
year	1998
title	The ideological basis of generative expression in design
source	International Conference on Generative Art
summary	This paper will discuss issues concerning the design ideology supporting the use and development of generative design. This design ideology is based on the unique qualities of craft production and on the forms or ideas from nature or the natural characteristics of materials. The main ideology presented here is the ideology of the 1980´s art craft production in Finland. It is connected with the general Finnish design ideology and with the design ideology of other western countries. The ideology for these professions is based on the common background of design principles stated in 19th century England. The early principles developed through the Arts and Crafts tradition which had a great impact on design thinking in Europe and in the United States. The strong continuity of this design ideology from 19th century England to the present computerized age can be detected. The application of these design principles through different eras shows the difference in the interpretations and in the permission of natural decorative forms. The ideology of the 1980ïs art craft in Finland supports the ideas and fulfilment of generative design in many ways. The reasons often given as the basis for making generative design with computers are in very many respects the same as the ideology for art craft. In Finland there is a strong connection between art craft and design ideology. The characteristics of craft have often been seen as the basis for industrial design skills. The main themes in the ideology of the 1980´s art craft in Finland can be compared to the ideas of generative design. The main issues in which the generative approach reflects a distinctive ideological thinking are: Way of Life: The work is the communication of the maker´s inner ideas. The concrete relationship with the environment, personality, uniqueness, communication, visionary qualities, development and growth of the maker are important. The experiments serve as a media for learning. Taste and Aesthetic Education: The real love affair is created by the non living object with the help of memories and thought. At their best objects create the basis in their stability and communication for durable human relationships. People have warm relationships especially with handmade products in which they can detect unique qualities and the feeling that the product has been made solely for them. Counter-culture: The aim of the work is to produce alternatives for technoburocracy and mechanical production and to bring subjective and unique experiences into the customerïs monotonious life. This ideology rejects the usual standardized mass production of our times. Mythical character: There is a metamorphosis in the birth of the product. In many ways the design process is about birth and growth. The creative process is a development story of the maker. The complexity of communication is the expression of the moments that have been lived. If you can sense the process of making in the product it makes it more real and nearer to life. Each piece of wood has its own beauty. Before you can work with it you must find the deep soul of its quality. The distinctive traits of the material, technique and the object are an essential part of the metamorphosis which brings the product into life. The form is not only for formïs sake but for other purposes, too. You cannot find loose forms in nature. Products have their beginnings in the material and are a part of the nature. This art craft ideology that supports the ideas of generative design can be applied either to the hand made crafts production or to the production exploiting new technology. The unique characteristics of craft and the expression of the material based development are a way to broaden the expression and forms of industrial products. However, for a crafts person it is not meaningful to fill the world with objects. In generative, computer based production this is possible. But maybe the production of unique pieces is still slower and makes the industrial production in that sense more ecological. People will be more attached to personal and unique objects, and thus the life cycle of the objects produced will be longer.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	34
authors	Regot, Joaquin and De Mesa, Andres
year	1998
title	Modelado de Superficies Complejas. La Casa Mila de Antonio Gaudi (Modeling of Complex Surfaces. The House Mila of Antonio Gaudi)
source	II Seminario Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings / ISBN 978-97190-0-X] Mar del Plata (Argentina) 9-11 september 1998, pp. 258-265
summary	This paper explains the three-dimensional representation procedure of one fragment of Mil· house elevation designed by the architect Antoni GaudÌ. The generation process of an architectonic virtual model constituted by free form surfaces like this, represents a paradigm of high level difficulty in CAD modeling. The main objective of our research has been not only construct a model that shows the complex form of its architecture, but also verify the performance of the different tools supported by computer aided design programs in the management of surface modeling.We obtained an accurate information of the real surface elevation with a photogrammetric survey using contour lines. The transformation of this kind of data in a three-dimensional model was not immediately Thus, we have had study different ways to generate the three-dimensional model solution. The process began with the construction of different surface models supported by analytic functions, but the obtained surfaces made with this system were deficient and not too much satisfactory. That's why, we use a polyhedron mesh surface method in order to improve these results.in spite of this methodology reductive performance, (compared with analytic function systems), the obtained surface demonstrated that this technique was the best way to satisfy the requirement of a free form surface previously established as we want to construct. From this point the principal problem was generate a surface defined by two-dimensional data, (contour lines), applying an automatic process sufficiently fast to compete with the analytic function systems.To satisfy the demand was necessary make complementary software to improve the process and allow more fluidity to resolve this typology of surfaces. We achieved this phase thanks to Joan Miquel Quilez collaboration and the constant dedication in the elaboration of complementary software to computer aided design. Finally, the introduction of render systems with lights, shadows, textures and reflected images, allowed show the studied elevation area of Mil· house with more accuracy. Thus, the limits and contours of the finally surface were more evident and help us to known the properties of a non- materialized free form surface successfully.
series	SIGRADI
email
last changed	2016/03/10 09:58

_id	ga9812
id	ga9812
authors	Riley, Howard
year	1998
title	The Genetic Code of Drawing: A systemic – functional approach to the semiotics of visual language
source	International Conference on Generative Art
summary	The many varied drawing conventions, invented by human cultures world-wide to depict experience of their world on a two-dimensional surface, all derive from the two fundamental processes of selection and combination of marks and surfaces. Here is the DNA of drawing – a dialectically entwined pair from which spirals the luxuriant diversity of human visual representation. Recent work by visual semioticians Michael O’Toole, Gunther Kress and Theo van Leeuwen has extended earlier insights of the linguist Michael Halliday to arrive at a powerful means of analysing painting, sculpture, architecture and graphics. Such analysis is known as systemic-functional semiotics because it identifies from within a visual grammar and vocabulary the systems of choices which enable the social functions of all human communication to be articulated. Those functions are: 1. to represent aspects of our physical and emotional experiences of the world. 2. to afford both artist and viewer the means for expressing or adopting personal attitudes and moods towards those experiences. An interpersonal function. Of course, a third function is required to make the previous two visible: 3. the functon of composition in material form. This kind of semiotics recognise that ideological constraints within a society can determine the choices of visual elements and the rules of their combination; it also recognises, dialectically, that the visual work thus produced may in turn affect the society’s ideological constructs. The paper breaks new ground by extending the concept of social semiotics into the field of Drawing. It goes on to explain an ecological approach to understanding visual perception, and attempts to synthesise aspects of this perception theory and semiotic theory. The resulting synthesis becomes a way of mapping the varieties of drawing which are generated from what may be termed the ?genetic code? of drawing. But this new theoretical model proposed here not only allows us to make contextual sense of existing drawing; it also provides a means of generating new ways of drawing.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	0f4c
authors	Asanowicz, Aleksander
year	1998
title	From Real to Cyber Reality
source	Cyber-Real Design [Conference Proceedings / ISBN 83-905377-2-9] Bialystock (Poland), 23-25 April 1998, pp. 11-19
summary	Human activity takes place in two planes, at two levels. Practical activity is present in one of the planes, the other level is occupied by purely cognitive activity. When observing sufficiently long sequences of practical and cognitive activities, one notices transitions between them, which prove true the suspicions of their functional relationship. Because on both of these planes of human activity there is always one and the same element present - an informative element - which on the first plane functions as subordinate, and in the other as an independent one, one can search for a common characteristic for both planes. Such common characteristic for both levels of human activity can be perceived in the fact that in both situations the activity of a human is based on CREATION. Human thinking is based on transitions between what is accessible through experience and what is referred to conceptually. The human thought exists only and exclusively in the vertical motion: from the phenomenal level to the structural level direction of abstraction) and from the conceptual level to the empirical level direction of concretisation). All human activity is multilayered or, more precisely, it is an activity within many layers: the sensual one as well as the structural one. The appearance of conceptual thinking has created a qualitatively new type of a situation. This novelty can be easily seen both in the sphere of the practical cognitive activity as well as in the sphere of the pure cognitive activity. In both cases, the cognitive activity of a human is of a "double-decker" character: image and concept. It is necessary to note here that the "image" does not only mean structural, concrete, but also one which is purely visual, abstract, of no physical form. Therefore, the human experience, being the result of the cognitive activity, is being expressed, becoming objective, materialising in two different but compatible ways. Firstly, in the material structures of practical significance - this way the material culture is created. Secondly - in material structures which have no practical meaning but are solely used for expressing the spiritual contents - thus creating the spiritual culture. Humans have developed an extraordinarily strong need for spiritual activity, which is manifested by the material activity, redundant from the point of view of the material needs.
series	plCAD
email
last changed	2003/05/17 10:01

_id	473f
authors	Bartnicka, Malgorzata
year	1998
title	The Influence of Light upon the Spatial Perception of Image
source	Cyber-Real Design [Conference Proceedings / ISBN 83-905377-2-9] Bialystock (Poland), 23-25 April 1998, pp. 21-26
summary	With regard to mental perception, light is one of the basic and strongest experiences influencing man. It is a phenomenon unchanged since the beginning of human kind, regardless of the fact what form or shape it was transmitted in. We are so used to light that we have stopped noticing how much we owe to it. It is the basic source and condition of our visual perception. Without light, illumination, we would not be able to see anything as it is light that transmits the shapes, distances and colours seen by us. The light which we perceive is a specific sight stimulus. It constitutes of only a small range of the spectrum of electromagnetic radiation existing in nature. The visible radiation encompasses the wave length from 400 to 800 nm. When the whole range of the visible wave spectrum enters the eye, the impression of seeing white light is produced. The light rays entering the sight receptors are subject to reflection, absorption and transmission. In the retina of the eye, the light energy is transformed into nerve impulses. The reception of light is dependent on the degree of absorption of the length of certain waves and the concentration of light. A ray of light entering the eye pupil is the proper eye stimulus which stimulates the receptors of the retina and causes visual impressions.
series	plCAD
last changed	1999/04/08 17:16

_id	bb72
authors	Bourdot, P., Krus, M., Gherbi, R.
year	1998
title	Cooperation Between Reactive 3D Objects and a Multimodal X Window Kernel for CAD
source	Bunt, H., Beun, R.J., Borghuis, T. (Eds.). Multimodal Human-Computer Communication : Systems, Techniques, and Experiments. Berlin : Springer
summary	From the early steps of sketching to final engineering, a frequent and very important activity in designing objects is to perform graphical and spatial simulations to solve the constraints on the objects which are being designed. But when we analyse work situations involving the use of CAD systems, it is today an acknowledged fact that these tools are not helpful to perform these types of simulations. While knowledge modeling based on form feature concepts already offers some possibilities for attaching behaviour to objects, the simulation activity requires in addition a `real time' and `intelligent' management of the interactions between the 3D virtual objects and the CAD user. Our general purpose is to study how future CAD systems could be improved to achieve the simulation steps of object design. In this context we present some issues concerning the cooperation between a model of reactive 3D objects and a multimodal X Window kernel. We have developed a prototype of a system where objects with reactive behaviour can be built, and with which the user can interact with a combination of graphical actions and vocal commands. This prototype is used to evaluate the feasability and the usefulness of the integration of such techniques in futur applications that would be used by object designers in a real working context. We describe the current state of this system and the planned improvements.
series	other
last changed	2003/11/21 15:16

_id	c11a
authors	Campbell, D.A.
year	1998
title	VRML In Architectural Construction Documents: A Case Study
source	VRML 98 Monterey - Proceedings of the 1998 VRML Conference, pp. 115-120
summary	The Virtual Reality Modeling Language (VRML) and the World Wide Web (WWW) offer new opportunities to communicate an architect's design intent throughout the design process. We have investigated the use of VRML in the production and communication of construction documents, the final phase of architectural building design. A prototype, experimental Web site was set up and used to disseminate design data as VRML models and HTML text to the design client, contractor, and fabricators. In this paper, we discuss the way our construction documents were developed in VRML, the issues we faced implementing it, and critical feedback from the users of the Web space/site. Finally, we suggest ways to enhance the VRML specification which would enable its widespread use as a communication tool in the design and construction industries. CR Categories and Subject Descriptors: 1.3.5 [Computer Graphics]: Computational Geometry and Object Modeling - Curve, surface, solid, and object representations; 1.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism - Virtual Reality; J-6. [Computer Applications]: Computer-aided Engineering - Computer-aided design (CAD), Computer-aided manufacturing (CAM). Additional Keywords: architecture, construction, AEC, design, construction documentation, specifications, Internet, extranet, World Wide Web, VRML, virtual worlds, virtual environments
series	other
email
last changed	2003/04/23 15:50

_id	a2b0
id	a2b0
authors	Charitos, Dimitrios
year	1998
title	The architectural aspect of designing space in virtual environments
source	University of Strathclyde, Dept. of Architecure and Building Science
summary	This thesis deals with the architectural aspect of virtual environment design. It aims at proposing a framework, which could inform the design of three-dimensional content for defining space in virtual environments, in order to aid navigation and wayfinding. The use of such a framework in the design of certain virtual environments is considered necessary for imposing a certain form and structure to our spatial experience in there. Firstly, this thesis looks into literature from the fields of architectural and urban design theory, philosophy, environmental cognition, perceptual psychology and geography for the purpose of identifying a taxonomy of spatial elements and their structure in the real world, on the basis of the way that humans think about and remember real environments. Consequently, the taxonomy, proposed for space in the real world is adapted to the intrinsic characteristics of space in virtual environments, on the basis of human factors aspects of virtual reality technology. As a result, the thesis proposes a hypothetical framework consisting of a taxonomy of spatial and space-establishing elements that a virtual environment may comprise and of the possible structure of these elements. Following this framework, several pilot virtual environments are designed, for the purpose of identifying key design issues for evaluation. As it was impossible to evaluate the whole framework, six specific design issues, which have important implications for the design of space in virtual environments, are investigated by experimental methods of research. Apart from providing answers to these specific design issues, the experimental phase leads to a better understanding of the nature of space in virtual environments and to several hypotheses for future empirical research.
series	thesis:PhD
email
last changed	2003/10/29 21:37

_id	d44c
authors	Cheng, N.
year	1998
title	Digital Identity in the Virtual Design Studio
source	Constructing Identity: the Associated Collegiate Schools of Architecture (ACSA) 56th Annual Meeting Proceedings, Cleveland, Ohio
summary	Internet tools most effectively connect diverse groups when individuals involved experience vital human connections. Online strangers are pulled into a community in which they can see a friendly face in the crowded stream of information. Strong self expression engages an audience and can result in personal interactions which reward getting beyond the technology. A group of individual profiles can coalesce to give colorful definition to team biases, strengths and weaknesses. This paper examines how the expression of identity has been a critical factor in the success of Internet design collaborations. First, it provides context on how these projects can improve architectural education by increasing relevance. Second, it identifies opportunities for individual and team expression gathered from a series of annual international design exercises known as the Virtual Design Studio. Third, it explains strategies for fostering student expression and interaction. Finally, it cites areas for future investigation.
series	other
last changed	2003/04/23 15:50

_id	ad5b
authors	Chu, K.
year	1998
title	Genetic Space
source	A.D.: Architects in Cyberspace II, vol.68, no.11-12, pp.68-73
summary	The twentieth century is the century of convergence. No other century has witnessed the development and profusion of new ideas as the twentieth century, and no other century has experienced the range and scope of events that transpired globally to the extent as this century. Various historical formations and discoveries, unleashed by the Enlightenment, have profoundly changed and transformed the course of human civilization and lead to the maturation of the idea of modernity in this century. With two years left to the start of the next millennium, we are experiencing the effects of modernity that have channeled powerful innovations into the dawn of a new era that could lead, potentially, beyond modernity. More than anything, it signals one of the major premises of the enlightenment to radicalize the substance of nature through the substance of reason and, thereby, altering the modality of the cultural universe of humanity into a genuine cosmopolitical concept. The synthesis of energy, matter and information into a three-parameter system of explanation has created conditions that allow us to think the unthinkable and extend our imagination to the limits of the conceivable. Modernity, from a metaphysical standpoint, brings to light the concept of a transcendental reason that aims to clarify the conditions of possibility for reason as an apriori given. As a consequence, it paved the way for a systemic constitution of a cosmic concept of reason that partakes in the arrival of alien intelligence and one that seems destined to project itself into an ontological domain of its own making. If modernity is an unfinished project, as claimed by some, its program is, nonetheless, being transformed into a cosmogenetic principle where synthesis is the pre-eminent outcome of a return to a second nature, i.e., a transcendent concept of nature. Even though the transcendental dialectic of critical reason is directed towards the timeless unity of the unconditioned, the genitive logic implicit within cosmic reason, itself a form of recursive self-propelling intelligence, appears to be animated by a projective force capable of engendering and pro-creating in the evolutionary sense of the term.
series	other
last changed	2003/04/23 15:50

_id	032b
authors	Cicognani, Anna
year	1998
title	A linguistic characterisation of design in text-based virtual worlds
source	University of Sydney
summary	In this research, it is suggested that design in text-based virtual worlds can be identified as a series of interactions between users and the virtual environment, and that these interactions for design can be approached using a linguistic perspective. The main assumption of this research is that a parallel can be drawn between the performance of design commands, and the one of speech acts in the physical world. Design in text-based virtual environments can then be articulated using a restricted set of speech acts, as design commands. Virtual worlds, represented as spaces, can be constructed following an architectural design metaphor. This metaphor provides a framework for the organisation of virtual entity relationships, and for the choice of words used to design. A linguistic characterisation is presented, by means of design activities, prototypes and scenarios, which derive from the architectural design metaphor. The characterisation of design is then validated by the analysis of an existing text-based virtual world.
keywords	Virtual Reality; Human-Computer Interaction; Computer-Aided Design; Programming Languages (Electronic Computers); Semantics; Programming Languages (Electronic Computers); Design
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	ga9921
id	ga9921
authors	Coates, P.S. and Hazarika, L.
year	1999
title	The use of genetic programming for applications in the field of spatial composition
source	International Conference on Generative Art
summary	Architectural design teaching using computers has been a preoccupation of CECA since 1991. All design tutors provide their students with a set of models and ways to form, and we have explored a set of approaches including cellular automata, genetic programming ,agent based modelling and shape grammars as additional tools with which to explore architectural ( and architectonic) ideas.This paper discusses the use of genetic programming (G.P.) for applications in the field of spatial composition. CECA has been developing the use of Genetic Programming for some time ( see references ) and has covered the evolution of L-Systems production rules( coates 1997, 1999b), and the evolution of generative grammars of form (Coates 1998 1999a). The G.P. was used to generate three-dimensional spatial forms from a set of geometrical structures .The approach uses genetic programming with a Genetic Library (G.Lib) .G.P. provides a way to genetically breed a computer program to solve a problem.G. Lib. enables genetic programming to define potentially useful subroutines dynamically during a run .* Exploring a shape grammar consisting of simple solid primitives and transformations. * Applying a simple fitness function to the solid breeding G.P.* Exploring a shape grammar of composite surface objects. * Developing grammarsfor existing buildings, and creating hybrids. * Exploring the shape grammar of abuilding within a G.P.We will report on new work using a range of different morphologies ( boolean operations, surface operations and grammars of style ) and describe the use of objective functions ( natural selection) and the "eyeball test" ( artificial selection) as ways of controlling and exploring the design spaces thus defined.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	e5a2
authors	Debevec, P.
year	1998
title	Rendering synthetic objects into real scenes: Bridging traditional and image-based graphics with global illumination and high dynamic range photography
source	Proc. ACM SIGGRAPH 98, M. Cohen, Ed., 189–198
summary	We present a method that uses measured scene radiance and global illumination in order to add new objects to light-based models with correct lighting. The method uses a high dynamic range imagebased model of the scene, rather than synthetic light sources, to illuminate the newobjects. To compute the illumination, the scene is considered as three components: the distant scene, the local scene, and the synthetic objects. The distant scene is assumed to be photometrically unaffected by the objects, obviating the need for re- flectance model information. The local scene is endowed with estimated reflectance model information so that it can catch shadows and receive reflected light from the new objects. Renderings are created with a standard global illumination method by simulating the interaction of light amongst the three components. A differential rendering technique allows for good results to be obtained when only an estimate of the local scene reflectance properties is known. We apply the general method to the problem of rendering synthetic objects into real scenes. The light-based model is constructed from an approximate geometric model of the scene and by using a light probe to measure the incident illumination at the location of the synthetic objects. The global illumination solution is then composited into a photograph of the scene using the differential rendering technique. We conclude by discussing the relevance of the technique to recovering surface reflectance properties in uncontrolled lighting situations. Applications of the method include visual effects, interior design, and architectural visualization.
series	other
last changed	2003/04/23 15:50

_id	ddss9816
id	ddss9816
authors	Demirel, Füsun
year	1998
title	A Research on Housing in Ankara-Turkey
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	The subject of this research contains an opinionnaire study and its results obtained from 30 houses in Ankara-TURKEY in which the people have middle and upper middle income so as to identify their favourites and criticsm about housing, regarding to their both houses and environment as well as tomake the definition of ideal houses and environment. Totally 30 subjects of which 21 are female and 9 are male which represent middle and upper middle incomed people. The average age of the subjects whose age range vary between 21 and 70 is 41. In the study, firstly, the opinionnaire questions were prepared and the housing in which the middle and upper middle incomed people live were determined as socio-economic level to be examined. Next permission and time reservation were requested fromthe owner's of housing to implement the study. During the times which have been determined by the subjects, the following procedure has been followed reading of the opinionnaire forms by myself and recording of responses of the subjects exactly, drawing of reliefs and plans of house, taking pictures of outer views and surroundings of housings. Tendencies of users' against various conditions have been transformed into numerical values from 1 to 7 in a scale with 7 column. In the light of above information; Considering the country conditions it was observed that these housing were excessivelylarge and were built for ostentation purposes, not for functional purposes. Usefulness, that is to say, design of house is in the bottom of the criteria list and it is not an important factor to choose the house, form another part of interesting findings of this study. Another significant result has been observed due to users desire about their house. Although the rising of design which was in 6th rank among the reasons to prefer a house was not an effective criteria on users' attitudes merely to have ahouse, this criteria was the 1st rank (87 %) among reasons due to the advantages that were provided for the users with respected to design and functionality as a result of meticulous studies of architects.Users' criticisms on their vicinity have shown variations according to their sexes.As a result of this research that were initiated to define the ideal house and environment concepts; interesting and detailed data about users' tendencies in the scope of both house and settling are available in "Findings" part of this study. Rising of desing criteria which was the 6 th rank amongcriteria's to choose a house, to 1st rank has brought the following conclusion: since the users are not able to act consciously due to the consideration of the properly owing action much more important,the main duty here is performed by the planner. Hence, starting from the assumption that users living in housings are extremely sensitive to their houses and especially environments, provision of public participation via this kind of opinionnaire studies while creating new environments, may contribute to create such environments in which people can live.
series	DDSS
last changed	2003/08/07 16:36

_id	ga0021
id	ga0021
authors	Eacott, John
year	2000
title	Generative music composition in practice - a critical evaluation
source	International Conference on Generative Art
summary	This critical evaluation will discuss 4 computer based musical works which, for reasons I shall explain, I describe as non-linear or generative. The works have been constructed by me and publicly performed or exhibited during a two year period from October 1998 to October 2000. ‘In the beginning…’ interactive music installation, strangeAttraction, Morley Gallery, London. July 1999 ‘jnrtv’ live generative dance music May 1999 to Dec 2000 ‘jazz’ interactive music installation, another strangeAttraction Morley Gallery, London. July 2000-09-26 ‘the street’ architectural interactive music installation, University of Westminster Oct 2000 Introduction I have always loved the practice of composing, particularly when it means scoring a work to be played by a live ensemble. There is something about taking a fresh sheet of manuscript , ruling the bar lines, adding clefs, key and time signatures and beginning the gradual process of adding notes, one at a time to the score until it is complete that is gratifying and compensates for the enormous effort involved. The process of scoring however is actually one distinct act within the more general task of creating music. Recently, the notion of ‘composing’ has met challenges through an increased interest in non-linear compositional methods. It is actually the presence of Chaotic or uncontrolable elements which add real beauty to music and many if not all of the things we value. If we think of a sunset, waves lapping on the shore, plants, trees a human face and the sound of the human voice, these things are not perfect and more importantly perhaps, they are transient, constantly changing and evolving. Last year and again this year, I have organised an exhibition of interactive , non-linear music installations called 'strangeAttraction'. The title refers to what Edward Lorenz called a ‘strange attractor’ the phenomenon that despite vast degrees of Chaos and uncertainty within a system, there is a degree of predictability, the tendency for chaotic behaviour to ‘attract’ towards a probable set of outcomes. Composition that deals with 'attractors' or probable outcomes rather than specific details which are set in stone is an increasingly intriguing notion.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

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