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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References

Hits 1 to 20 of 605

_id 6648
authors Issa, Rajaa
year 2003
title Cellular Texture Generator for Architectural Models
source University of Texas at Arlington, Department of Computer Science and Engineering
summary Cellular materials are used extensively in architectural settings. These materials usually have well defined geometry such as brick, stone and tiles. Patterns created with cellular materials are mostly the product of an intuitive design process that goes through cycles of synthesis and reflection until reaching final solution. Therefore interactivity is critical to intuitive designs. This paper presents a system that enables interactive creation of 3D cellular textures. It recognizes critical design areas that can have special design consideration such as edges. The system makes use of existing graphic engines and provides an intuitive interface to create patterns interactively. Rendering time is also considered through defining multiple levels of details for cells so it looks convincing in different scales. The paper presents results with an implementation of cellular texture generation system. It also shows some examples of brick walls generated with this implementation.
series thesis:MSc
email
last changed 2003/04/25 07:20

_id 1404
id 1404
authors Hosny, Samir Sadek
year 2003
title BUIL-D-EX; A Knowledge-Based Expert System for the Diagnosis of Buildings Cracks
source Scientific Bulletin, Faculty of Engineering, Ain Shams University, Vol. 38, No. 2, June 2003 - pp. 297-310
summary Expert systems are computer systems developed to preserve the human expertise about specific domains in a well-structured form suitable for retrieval and manipulation by computers. They have been used in many fields of applications and proved to be beneficial. This paper addresses the role of Knowledge-based expert systems in building construction; particularly in the diagnostics and assessment of buildings' cracks. The paper presents BUIL-D-EX; a prototype for a Buildings’ Diagnostics Expert system intended to assist architects, structural engineers, contractors and even building owners in identifying and suggesting remedies to concrete and masonry surfaces' defects. The system identifies the kind of crack, states its most probable causes and its degree of danger, suggests a technical remedy and finally suggests several commercial names for materials to be used for curing the defect, and how to apply them. BUIL-D-EX offers complete explanations for all its questions to the users, as well as justifications for all its decisions and answers whenever needed.
keywords Expert Systems, Diagnosis, Building Construction, Building Cracks, Backward chaining, Inference, Reasoning
series journal paper
type normal paper
email
last changed 2009/09/12 17:18

_id caadria2003_c4-2
id caadria2003_c4-2
authors Wittkopf, Stephen K. and E-Jin, Foo
year 2003
title Challenges of Using Image-Based Modeling Tool within the Architectural Design Process
doi https://doi.org/10.52842/conf.caadria.2003.597
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. 597-612
summary Architects and planners will increasingly have to deal with developments in urban sites where existing context is a critical part of their design considerations. It is therefore important that architects can envision the potential of emerging technologies as means to assist architectural design in the changing face of our build environment. The objective of this paper is to examine the opportunities which image-based modeling (IM) can offer to the architectural design in a context -rich urban built-environment by providing better means of representation of the design context. By drawing relations from the available precedents and the research findings, the paper provides insights into how IM application can create stronger visual awareness of the context, in order to assist design within such condition. This paper shows that the reliability of the IM models in terms of geometric accuracy and rendering quality decreases as the physical scale of the subject increases. The best result is generated from modeling small objects in studio environment as compare to creating larger architectural objects in exterior conditions.
series CAADRIA
email
last changed 2022/06/07 07:57

_id caadria2003_k-1
id caadria2003_k-1
authors Patummanon, Tipsuda
year 2003
title Architecture of A49 - Architecture of Khun Nithi Sathapitanonda [Keynote]
doi https://doi.org/10.52842/conf.caadria.2003.005
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. 5-11
summary I approach a bridge, an escape from the hard concrete floor of Bangkok, and happen to eavesdrop on the silent call of an elephant herd marching into my perception. It now appears in a forest behind the window of a large wall. The forest spreads deeper and deeper beyond the limit of a brick and concrete surface. The wall transforms into the mysterious rain forest of Thailand - robust, complex and healthy. A beam of friendly sunlight penetrates the air of an open well and greets the floor of the forest, it enters to enlighten all of its inhabitants' hearts. ... As I am immersed in the forest, I hear the chimes of its quietness and come face to face with the herd of elephants, marching into the middle of the place. ... All of the elephants in fact are made of wood, however their skin transcends the form of a hard wooden object for it is now transformed into the breathing skin of real elephants - the mothers of the forest. Wherever is felt the breath of the mother of the forest the place flourishes as a healthy world for all life. Here, I can hear the sonority of the quietness upon a visit to the office of A49, the office of Khun Nithi Sathapitanonda.
series CAADRIA
last changed 2022/06/07 07:59

_id ecaade2023_000
id ecaade2023_000
authors Dokonal, Wolfgang, Hirschberg, Urs and Wurzer, Gabriel
year 2023
title eCAADe 2023 Digital Design Reconsidered - Volume 1
doi https://doi.org/10.52842/conf.ecaade.2023.1.001
source Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 1, Graz, 20-22 September 2023, 905 p.
summary The conference logo is a bird’s eye view of spiral stairs that join and separate – an homage to the famous double spiral staircase in Graz, a tourist attraction of this city and a must-see for any architecturally minded visitor. Carved out of limestone, the medieval construction of the original is a daring feat of masonry as well as a symbolic gesture. The design speaks of separation and reconciliation: The paths of two people that climb the double spiral stairs separate and then meet again at each platform. The relationship between architectural design and the growing digital repertoire of tools and possibilities seems to undergo similar cycles of attraction and rejection: enthusiasm about digital innovations – whether in Virtual Reality, Augmented Reality, Energy Design, Robotic Fabrication, the many Dimensions of BIM or, as right now, in AI and Machine Learning – is typically followed by a certain disillusionment and a realization that the promises were somewhat overblown. But a turn away from these digital innovations can only be temporary. In our call for papers we refer to the first and second ‘digital turns’, a term Mario Carpo coined. Yes, it’s a bit of a pun, but you could indeed see these digital turns in our logo as well. Carpo would probably agree that design and the digital have become inseparably intertwined. While they may be circling in different directions, an innovative rejoinder is always just around the corner. The theme of the conference asked participants to re-consider the relationship between Design and the Digital. The notion of a cycle is already present in the syllable “re”. Indeed, 20 years earlier, in 2003, we held an ECAADE conference in Graz simply under the title “Digital Design” and our re-using – or is it re-cycling? – the theme can be seen as the completion of one of those cycles described above: One level up, we meet again, we’ve come full circle. The question of the relationship between Design and the Digital is still in flux, still worthy of renewed consideration. There is a historical notion implicit in the theme. To reconsider something, one needs to take a step back, to look into the past as well as into the future. Indeed, at this conference we wanted to take a longer view, something not done often enough in the fast-paced world of digital technology. Carefully considering one’s past can be a source of inspiration. In fact, the double spiral stair that inspired our conference logo also inspired many architects through the ages. Konrad Wachsmann, for example, is said to have come up with his famous Grapevine assembly system based on this double spiral stair and its intricate joinery. More recently, Rem Koolhaas deemed the double spiral staircase in Graz important enough to include a detailed model of it in his “elements of architecture” exhibition at the Venice Biennale in 2014. Our interpretation of the stair is a typically digital one, you might say. First of all: it’s a rendering of a virtual model; it only exists inside a computer. Secondly, this virtual model isn’t true to the original. Instead, it does what the digital has made so easy to do: it exaggerates. Where the original has just two spiral stairs that separate and join, our model consists of countless stairs that are joined in this way. We see only a part of the model, but the stairs appear to continue in all directions. The implication is of an endless field of spiral stairs. As the 3D model was generated with a parametric script, it would be very easy to change all parameters of it – including the number of stairs that make it up. Everyone at this conference is familiar with the concept of parametric design: it makes generating models of seemingly endless amounts of connected spiral stairs really easy. Although, of course, if we’re too literal about the term ‘endless’, generating our stair model will eventually crash even the most advanced computers. We know that, too. – That's another truth about the Digital: it makes a promise of infinity, which, in the end, it can’t keep. And even if it could: what’s the point of just adding more of the same: more variations, more options, more possible ways to get lost? Doesn’t the original double spiral staircase contain all those derivatives already? Don’t we know that ‘more’ isn’t necessarily better? In the original double spiral stair the happy end is guaranteed: the lovers’ paths meet at the top as well as when they exit the building. Therefore, the stair is also colloquially known as the Busserlstiege (the kissing stair) or the Versöhnungsstiege (reconciliation stair). In our digitally enhanced version, this outcome is no longer clear: we can choose between multiple directions at each level and we risk losing sight of the one we were with. This is also emblematic of our field of research. eCAADe was founded to promote “good practice and sharing information in relation to the use of computers in research and education in architecture and related professions” (see ecaade.org). That may have seemed a straightforward proposition forty years ago, when the association was founded. A look at the breadth and depth of research topics presented and discussed at this conference (and as a consequence in this book, for which you’re reading the editorial) shows how the field has developed over these forty years. There are sessions on Digital Design Education, on Digital Fabrication, on Virtual Reality, on Virtual Heritage, on Generative Design and Machine Learning, on Digital Cities, on Simulation and Digital Twins, on BIM, on Sustainability, on Circular Design, on Design Theory and on Digital Design Experimentations. We hope you will find what you’re looking for in this book and at the conference – and maybe even more than that: surprising turns and happy encounters between Design and the Digital.
series eCAADe
email
last changed 2023/12/10 10:49

_id ecaade2023_001
id ecaade2023_001
authors Dokonal, Wolfgang, Hirschberg, Urs and Wurzer, Gabriel
year 2023
title eCAADe 2023 Digital Design Reconsidered - Volume 2
doi https://doi.org/10.52842/conf.ecaade.2023.2.001
source Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, 899 p.
summary The conference logo is a bird’s eye view of spiral stairs that join and separate – an homage to the famous double spiral staircase in Graz, a tourist attraction of this city and a must-see for any architecturally minded visitor. Carved out of limestone, the medieval construction of the original is a daring feat of masonry as well as a symbolic gesture. The design speaks of separation and reconciliation: The paths of two people that climb the double spiral stairs separate and then meet again at each platform. The relationship between architectural design and the growing digital repertoire of tools and possibilities seems to undergo similar cycles of attraction and rejection: enthusiasm about digital innovations – whether in Virtual Reality, Augmented Reality, Energy Design, Robotic Fabrication, the many Dimensions of BIM or, as right now, in AI and Machine Learning – is typically followed by a certain disillusionment and a realization that the promises were somewhat overblown. But a turn away from these digital innovations can only be temporary. In our call for papers we refer to the first and second ‘digital turns’, a term Mario Carpo coined. Yes, it’s a bit of a pun, but you could indeed see these digital turns in our logo as well. Carpo would probably agree that design and the digital have become inseparably intertwined. While they may be circling in different directions, an innovative rejoinder is always just around the corner. The theme of the conference asked participants to re-consider the relationship between Design and the Digital. The notion of a cycle is already present in the syllable “re”. Indeed, 20 years earlier, in 2003, we held an ECAADE conference in Graz simply under the title “Digital Design” and our re-using – or is it re-cycling? – the theme can be seen as the completion of one of those cycles described above: One level up, we meet again, we’ve come full circle. The question of the relationship between Design and the Digital is still in flux, still worthy of renewed consideration. There is a historical notion implicit in the theme. To reconsider something, one needs to take a step back, to look into the past as well as into the future. Indeed, at this conference we wanted to take a longer view, something not done often enough in the fast-paced world of digital technology. Carefully considering one’s past can be a source of inspiration. In fact, the double spiral stair that inspired our conference logo also inspired many architects through the ages. Konrad Wachsmann, for example, is said to have come up with his famous Grapevine assembly system based on this double spiral stair and its intricate joinery. More recently, Rem Koolhaas deemed the double spiral staircase in Graz important enough to include a detailed model of it in his “elements of architecture” exhibition at the Venice Biennale in 2014. Our interpretation of the stair is a typically digital one, you might say. First of all: it’s a rendering of a virtual model; it only exists inside a computer. Secondly, this virtual model isn’t true to the original. Instead, it does what the digital has made so easy to do: it exaggerates. Where the original has just two spiral stairs that separate and join, our model consists of countless stairs that are joined in this way. We see only a part of the model, but the stairs appear to continue in all directions. The implication is of an endless field of spiral stairs. As the 3D model was generated with a parametric script, it would be very easy to change all parameters of it – including the number of stairs that make it up. Everyone at this conference is familiar with the concept of parametric design: it makes generating models of seemingly endless amounts of connected spiral stairs really easy. Although, of course, if we’re too literal about the term ‘endless’, generating our stair model will eventually crash even the most advanced computers. We know that, too. – That's another truth about the Digital: it makes a promise of infinity, which, in the end, it can’t keep. And even if it could: what’s the point of just adding more of the same: more variations, more options, more possible ways to get lost? Doesn’t the original double spiral staircase contain all those derivatives already? Don’t we know that ‘more’ isn’t necessarily better? In the original double spiral stair the happy end is guaranteed: the lovers’ paths meet at the top as well as when they exit the building. Therefore, the stair is also colloquially known as the Busserlstiege (the kissing stair) or the Versöhnungsstiege (reconciliation stair). In our digitally enhanced version, this outcome is no longer clear: we can choose between multiple directions at each level and we risk losing sight of the one we were with. This is also emblematic of our field of research. eCAADe was founded to promote “good practice and sharing information in relation to the use of computers in research and education in architecture and related professions” (see ecaade.org). That may have seemed a straightforward proposition forty years ago, when the association was founded. A look at the breadth and depth of research topics presented and discussed at this conference (and as a consequence in this book, for which you’re reading the editorial) shows how the field has developed over these forty years. There are sessions on Digital Design Education, on Digital Fabrication, on Virtual Reality, on Virtual Heritage, on Generative Design and Machine Learning, on Digital Cities, on Simulation and Digital Twins, on BIM, on Sustainability, on Circular Design, on Design Theory and on Digital Design Experimentations. We hope you will find what you’re looking for in this book and at the conference – and maybe even more than that: surprising turns and happy encounters between Design and the Digital.
series eCAADe
type normal paper
email
last changed 2024/08/29 08:36

_id acadia03_002
id acadia03_002
authors Anders, Peter
year 2003
title Four Degrees Of Freedom
doi https://doi.org/10.52842/conf.acadia.2003.x.s7a
source Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, p. 17
summary Letting go is hard to do. Remember back to when, after months of trying, you let go of the handlebars of your bicycle and sailed down the street, effortless and assured. It was a freedom born of mastery, balance and technique. You had let go, but were in control. Technique extends to other devices as well and we are here to discuss architectural computation. Here too, as we will see, mastery is shown by letting go. These papers explore new degrees of freedom in design computation. Each is on a separate aspect of architecture, whether it be aesthetics, process, or structure. Two papers inquire into the entities of design and the processes by which they are manifested. They pose important questions. If we can affect the course of design going forward, are we free to change its past? By defining the characteristics of objects at the outset, are we through automation free to choose from a refined spectrum of outcomes? From the evidence of these papers, the answer to both questions is yes. Through the agency of parametric design we can affect the future and past of architectural processes and their products. Rather than being locked into rigid, linear decisions we are temporally free to choose, tweak and modify. Choice and chance play an important role in aesthetics as well. This has become emblematic of design trends as we have seen in recent years. One of our papers addresses the indeterminacy of particle systems in the design of a monument to the victims of 9/11. By letting go of the handlebars of the computer, the author has been freed to new, poetic forms and processes. Another paper opens urban design to its client community by use of a sophisticated web site. In the tradition of populist innovators like Charles Moore and Lucien Kroll, the authors have extended the design process beyond the office walls to the city itself. The designers, by loosening their grip on the project have made the effort democratic and participatory. Intriguingly, at the end of the paper, they note that this use of cyberspace opens the door to a non-physical architecture. Could architecture, then, let go its materialist biases as well? We hope to engage this and other questions shortly.We are pleased then, to share with you these insights and projects. Wassim and I hope that these presentations will be as liberating for you as they were for us.
series ACADIA
email
last changed 2022/06/07 07:49

_id 47b3
authors Gruen, A., Steidler F. and Wang, X.
year 2003
title Generation and visualization of 3D-city and facility models using CyberCity Modeler (CC-Modeler)
source CORP 2003, Vienna University of Technology, 25.2.-28.2.2003 [Proceedings on CD-Rom]
summary The efficient generation of data for 3-D city models and their handling in Spatial Information Systems has become feasible. The derivation of this data from aerial and terrestrial images with semi-automated techniques constitutes the most powerful tool currently available to fulfill this task. Semi-automated object extraction has become a viable concept for the generation of 3-D city models. CyberCity-Modeler (CC-Modeler) has been developed with the aim of creating not only buildings, but also other objects pertaining to a city model efficiently and with a high degree of flexibility concerning the level of detail. In its commercial implementation, CCModeler has been confronted with a number of user requirements which needed to be observed. This led to some extensions in functionality, which are addressed in this paper: Geometrical regularization of buildings, editing functions for topology adjustment, integration of facades and other vertical walls and modeling of overhanging roofs. These extensions of the original concept make CyberCity-Modeler an even more powerful tool for 3-D city modeling.
series other
last changed 2003/03/11 20:39

_id caadria2003_c4-1
id caadria2003_c4-1
authors Santos, Eduardo T. and Derani, Luis A.
year 2003
title An Immersive Virtual Reality System for Interior and Lighting Design
doi https://doi.org/10.52842/conf.caadria.2003.593
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. 593-596
summary We are developing an immersive virtual reality system for interior and lighting design where, inside a CAVE(r), one can change at will the color, texture and finishing of all elements in the simulated environment (walls, floor, furniture and decoration) as well as position, type, color and intensity of all light sources. Although the rendering algorithm used in the system is the ray tracing, preliminary results show we are able to achieve almost real time performance. The system is intended to both help architects to better communicate their design ideas to clients through an advanced visualization tool and also speed up the interior and lighting design processes.
series CAADRIA
email
last changed 2022/06/07 07:56

_id avocaad_2003_17
id avocaad_2003_17
authors Anna Maria Chrabin, Jaroslaw Szewczyk and Herman Neuckermans
year 2003
title A Critical Evaluation of Early Stages Software in its Capacity of Coping with Contextual Issues
source LOCAL VALUES in a NETWORKED DESIGN WORLD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Stellingwerff, Martijn and Verbeke, Johan (Eds.), (2004) DUP Science - Delft University Press, ISBN 90-407-2507-1.
summary In this paper we analyse critically early design stages software in its capacity of coping with contextual data at large (i.e. representing cultural, aesthetical context, etc.). We identified 5 categories of early stages software: geometry based graphic editors, evaluation architectural software, generative and shape-grammar based systems, evolutionary systems and other systems. Calling the object under creation during of the early stages a CAD conceptual model, we will investigate to what extend this software allows the architect to experience and represent the context in which a design is situated. Especially we will focus on its capacity to allow interaction, playful interaction on our way to the design. Designers, and particularly architects, interact with the local context similarly to interacting in a game: the context influences the users’ decisions, surprises them and causes permanent changes to their ways of thinking. On the other hand, architects permanently shape and reshape the context, and reduce the context to a protean point of reference. Such behaviour characterises creative thinking that is crucial for the early stage of design. The investigation led us to the conclusions that the effective interactivity with the context needs simple rules, a plain interface and data reduced as simple as possible, especially when interaction with the context is performed during the early stages of a design process. The findings can be used in organising computer environments for early-stage design.
keywords Architecture, Local values, Globalisation, Computer Aided Architectural Design
series AVOCAAD
email
last changed 2006/01/16 21:38

_id f8f7
id f8f7
authors Bhzad Sidawi
year 2003
title The pattern of Internet use for information management by architectural practices in the UK
source Cardiff University, Welsh School of Architecture Cardiff, UK
summary In recent history, architects have experienced problems related to the use and management of new innovations. The Internet presents one such challenge. It offers considerable expansion in types of communication and sources of business information and connects people and businesses around the globe. As is argued in this research, these services could play a positive role in architectural practice. This research examines the use of the Internet by architectural practices in UK in order to reveal how aware they are of the opportunities it presents, the extent to which they are taking advantage of them, and the problems they are experiencing. A field study was conducted of two types of practices: RIBA private practices and local authority practices. A number of research tools were used to inspect how these practices are using the Internet to manage various types of information that used and produced in the practice, namely: the acquisition of web information, the exchange of the practice’s information through the web and the presentation of the practice’s information on the web. Explanations for the results were sought by correlating variables from the questionnaire study, using simple statistical tests. The field study shows that many Internet services are unpopular among architects, and that practices have problems in adopting and using the technology. The pace at which the Internet is being absorbed and accepted by practices is slow. The study suggests that possible causes are: the little knowledge of users’ about IT, the poor resources of the practice, and old or imperfect Internet installations and the absence of the Internet support to the architect’s activities. The research argues that there are a number of links between these negative factors which make the practice unable to utilize the Internet and to manage the practice’s information through the Internet. To break these links, the research suggests that practices should adopt a specific management strategy to promote more utilization of Internet services in the office and to manage information. Practices need to make certain changes to the way they manage the Internet and work with it, if they plan to integrate the Internet more successfully into their practice. The research discusses techniques for improving practice management which would help practices to digest Internet technology and to use it more effectively in the practice.
keywords Internet, Architectural practices, Information management, Communications
series thesis:PhD
type normal paper
email
last changed 2006/11/03 23:29

_id 792a
authors Blaschke, Thomas and Tiede, Dirk
year 2003
title Bridging GIS-based landscape analysis/modelling and 3D-simulation.Is this already 4D?
source CORP 2003, Vienna University of Technology, 25.2.-28.2.2003 [Proceedings on CD-Rom]
summary Several studies have used remote sensing to map patterns of e.g. deforestation or to analyse the rates of land use change. Thesestudies have proven useful for interpreting the causes of urbanization, deforestation etc. and the impact of such changes on theregion. Monitoring of change (e.g. deforestation or reforestation) is frequently perceived as one of the most important contributionsof remote sensing technology to the study of global ecological and environmental change (Roughgarden et al. 1991). Manyresearchers believe that the integration of remote sensing techniques within analysis of environmental change is essential if ecologistsare to meet the challenges of the future, specifically issues relating to global change; however, in practice, this integration has so farbeen limited (Griffiths & Mather 2000). Considerable difficulties are encountered in linking, on the one hand, the biologies oforganisms and the ecologies of populations to the fluxes of material and energy quantifiable at the level of ecosystems. In this paper,we concentrate on the methodological aspects of the delineation of landscape objects and touch the ecological application onlysuperficially but we elucidate the potential of the proposed methodology for several ecological applications briefly.
series other
email
last changed 2003/11/21 15:16

_id ecaade03_269_43_achten
id ecaade03_269_43_achten
authors Achten, Henri and Joosen, Gijs
year 2003
title The Digital Design Process - Reflections on a Single Design Case
doi https://doi.org/10.52842/conf.ecaade.2003.269
source Digital Design [21th eCAADe Conference Proceedings / ISBN 0-9541183-1-6] Graz (Austria) 17-20 September 2003, pp. 269-274
summary CAD tools are increasing their expressive and geometric power to enable a design process in which the computer model can be used throughout the whole design process for realizing the design. Such a process, in which other media such as physical scale models or drawings are no longer required by necessity to facilitate the design process, can be considered a digital design process. Rather than proposing that such a process is ideal – drawings and scale models should not be discarded – we feel that when taken as a starting point, the digital design process raises a number of new challenges to architectural design that deserve attention. These challenges concern the basic activities in design: exploration of the problem space, creating preliminary solutions, understanding consequences of design decisions, and so forth. In this paper we take the concrete design case of a graduation project that was developed from the start solely in CAD. We identify a number of key issues in that process such as continuous modeling, the model as design, continuous pliability, localized focus, and postponed decision. These issues not only have a technical, CAD-related aspect, but also are connected to architectural design. Most of these aspects are subject of contemporary debate in architectural design. On this basis, we can indicate where CAD is making a potential difference in architectural design.
keywords Digital design, CAAD
series eCAADe
email
more http://www.ds.arch.tue.nl/General/Staff/henri
last changed 2022/06/07 07:54

_id caadria2003_b5-2
id caadria2003_b5-2
authors Caldas, Luisa G.
year 2003
title Shape Generation Using Pareto Genetic Algorithms Integrating Conflicting Design Objectives in Low-Energy Architecture
doi https://doi.org/10.52842/conf.caadria.2003.681
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. 681-694
summary The Generative Design System [GDS] presented in this paper was developed to assist designers in researching low-energy architecture solutions. The GDS has the capability to evolve architectural forms that are energy-efficient, while complying to design intentions expressed by the architect, and responding to conflicting objectives. To achieve this evolutionary development, the system integrates a search and optimization method [Genetic Algorithm], a building energy simulation software [DOE2.1E], and Pareto multicriteria optimization techniques. The GDS adaptively generates populations of alternative solutions, from an initial schematic layout and a set of rules and constraints designed by the architect to encode design intentions. The two conflicting objective functions considered in this paper are maximizing daylighting use, and minimizing energy consumption for conditioning the building. The GDS generated an uniformly sampled, continuous Pareto front, from which six points were visualized in terms of the proposed architectural solutions.
series CAADRIA
email
last changed 2022/06/07 07:54

_id ijac20031402
id ijac20031402
authors Caldas, Luisa G.; Norford, Leslie K.
year 2003
title Shape Generation Using Pareto Genetic Algorithms: Integrating Conflicting Design Objectives in Low-Energy Architecture
source International Journal of Architectural Computing vol. 1 - no. 4
summary The Generative Design System [GDS] presented in this paper was developed to assist designers in researching low-energy architecture solutions. The GDS has the capability to evolve architectural forms that are energy-efficient, while complying to design intentions expressed by the architect and responding to conflicting objectives. To achieve this evolutionary development, the system integrates a search and optimization method [Genetic Algorithm], building energy simulation software [DOE2.1E], and Pareto multicriteria optimization techniques. The GDS adaptively generates populations of alternative solutions, from an initial schematic layout and a set of rules and constraints designed by the architect to encode design intentions. The two conflicting objective functions considered in this paper are maximizing daylighting use and minimizing energy consumption for conditioning the building. The GDS generated an uniformly sampled, continuous Pareto front, from which six points were visualized in terms of the proposed architectural solutions.
series journal
more http://www.multi-science.co.uk/ijac.htm
last changed 2007/03/04 07:08

_id c5c5
id c5c5
authors Calderon, C., Cavazza M. and Diaz, D.
year 2003
title A NEW APPROACH TO VIRTUAL DESIGN FOR SPATIAL CONFIGURATION PROBLEMS,
source 7th IEEE International Information Visualisation Conference, London, UK, 16-17 July 2003. http://www.graphicslink.demon.co.uk/IV03/
summary In this paper, we present a new framework for the use of Virtual Reality (VR) in engineering design for configuration applications. Traditional VR systems support the visual exploration of a design solution but do not assist the user in exploring alternative solutions based on domain knowledge. Extending previous work in the area of Intelligent Virtual Environment, we propose an intelligent configuration system based on constraint logic programming (CLP), integrated in a real-time 3D graphic environment. This type of integration facilitates the expression of design knowledge in the VE and enables the user to interactively solve and/or refine a spatial configuration problem. In the system described in this paper, the user can visually explore configurations, but his interaction with objects of the configuration problem triggers new cycles of constraint propagation from the modified configuration to produce a new compatible solution.
keywords Virtual Reality, Virtual Design
series other
type normal paper
email
last changed 2005/12/02 11:31

_id 1101
id 1101
authors Calderon, C., Cavazza M. and Diaz, D.
year 2003
title A NEW APPROACH TO THE INTERACTIVE RESOLUTION OF CONFIGURATION PROBLEMS IN VIRTUAL ENVIRONMENTS
source 3rd International Symposium on Smart Graphics, Heidelberg, Germany, 2-4, July 2003. http://www.smartgraphics.org/ . Proceedings published by Springer: Lectures notes in Artificial Intelligence.
summary Intelligent Virtual Environments integrate AI techniques with 3D real-time environments. As such, they can support interactive problem solving, provided the underlying AI techniques can produce solutions within a time frame matching that of user interaction. In this paper, we describe an intelligent virtual environment based on Constraint Logic Programming (CLP), integrated in a real-time 3D graphic environment. We have developed an event-based ap-proach through which user interaction can be converted in real-time into appro-priate solver queries which are then translated back into automatic reconfigura-tions of the Virtual Environment (VE). Additionally, this framework supports the interactive exploration of the solution space in which alternative solutions (configurations) can be found. We demonstrate the system behaviour on a con-figuration example. This example illustrates how solutions can be interactively refined by the user through direct manipulation of objects in the VE and how the interactive search of alternative solutions in the VE is supported by these type of systems.
keywords Artificial Intelligence, Virtual Environments, Constraint Programming
series other
type normal paper
email
last changed 2005/12/02 11:34

_id ijac20031201
id ijac20031201
authors Camarata, Ken; Gross, Mark D.; Yi-Luen Do, Ellen
year 2003
title A Physical Computing Studio: Exploring Computational Artifacts and Environments
source International Journal of Architectural Computing vol. 1 - no. 2
summary This paper describes a studio that explores interfaces for computationally enhanced artifacts and environments. The studio is designed as a traditional architectural design studio, fostering creative thinking and encouraging hands-on learning. It brings students from art, music, architecture, computer science, and engineering together into teams to design and build physical computing projects.The team's unusual mix of knowledge and experience allows for creative solutions. As a result, the studio has become a test bed for new and interesting ideas.
series journal
email
more http://www.multi-science.co.uk/ijac.htm
last changed 2007/03/04 07:08

_id cf_2003_000
id cf_2003_000
authors Chiu, M.-L., Tsou, J.-Y., Kvan, Th., Morozumi, M. and Jeng, T.-S. (Eds.)
year 2003
title Digital Design - Research and Practice
source Proceedings of the 10th International Conference on Computer Aided Architectural Design Futures / ISBN 1-4020-1210-1 / Tainan (Taiwan) 13–15 October 2003, 464 p.
summary The use of computers in the design of the built environment has reached a watershed. From peripheral devices in the design process, they have in recent years come to take centre stage. An illustration is immediately at hand. Just as the entries to the competition for the Chicago Tribune Tower in 1922 defined the state-of-the-art at the beginning of the twentieth century, we have a similar marker at the end of the century, the competition in 2002 to replace the World Trade Centre towers in Lower Manhattan offered us a range of architectural solutions that exemplified the state-of-the-art eighty years later, setting forth not only architectural statements but also illustrating clearly the importance of computers in the design of the built environment. In these entries of 2002, we can see that computers have not only become essential to the communication of design but in the investigation and generation of structure, form and composition. The papers in this book are the current state-of-the-art in computer-aided design as it stands in 2003. It is the tenth in a series sponsored by the CAAD Futures Foundation, compiled from papers presented at the biennial CAAD Futures Conferences. As a series, the publications have charted the steady progress in developing the theoretical and practical foundations for applications in design practice. This volume continues in that tradition; thus, this book is entitled Digital Design: Research and Practice. The papers are grouped into three major categories, reflecting thrusts of research and practice, namely: Data and information: its organisation, handling and access, including agents; Virtual worlds: their creation, application and interfaces; and Analysis and creation of form and fabric. The editors received 121 abstracts after the initial call for contributions. From these, 61 abstracts were selected for development into complete papers for further review. From these submissions, 39 papers were chosen for inclusion in this publication. These papers show that the field has evolved from theoretical and development concerns to questions of practice in the decade during which this conference has showcased leading work. Questions of theoretical nature remain as the boundaries of our field expand. As design projects have grasped the potentials of computer-aided design, so have they challenged the capabilities of the tools. Papers here address questions in geometric representation and manipulation (Chiu and Chiu; Kocaturk, Veltkamp and Tuncer), topics that may have been considered to be solved. As design practice becomes increasingly knowledge based, better ways of managing, manipulating and accessing the complex wealth of design information becomes more pressing, demanding continuing research in issues such as modelling (Yang; Wang; Zreik et al), data retrieval and querying (Hwang and Choi; Stouffs and Cumming; Zreik, Stouffs, Tuncer, Ozsariyildiz and Beheshti), new modes of perceiving data (Segers; Tan). Tools are needed to manage, mine and create information for creative work, such as agents (Liew and Gero; Smith; Caneparo and Robiglio; Ding et al) or to support design processes (Smith; Chase). Systems for the support and development of designs continue (Gero; Achten and Jessurun). As progress is made on some fronts, such as user interfaces, attention is again turned to previously research areas such as lighting (Jung, Gross and Do; Ng et al; Wittkopf; Chevier; Glaser, Do and Tai) or services (Garcia; Chen and Lin). In recent years the growth of connectivity has led to a rapid growth in collaborative experience and understanding of the opportunities and issues continues to mature (Jabi; Dave; Zamenopoulos and Alexiou). Increasing interest is given to implications in practice and education (Dave; Oxman; Caneparo, Grassi and Giretti). Topics new to this conference are in the area of design to production or manufacture (Fischer, Burry and Frazer; Shih). Three additional invited papers (Rekimoto; Liu; Kalay) provide clear indication that there is still room to develop new spatial concepts and computer augmented environments for design. In conclusion, we note that these papers represent a good record of the current state of the evolving research in the field of digital design.
series CAAD Futures
email
more http://www.caadfutures.arch.tue.nl/
last changed 2003/09/22 12:21

_id avocaad_2003_03
id avocaad_2003_03
authors Dag Boutsen
year 2003
title AN INCLUSIVE ‘WORK-METHOD’ AND A SPECIFIC SEARCH FOR FULLY SUPPORTED SOLUTIONS THROUGH SUBJECTORIENTED DESIGN (INSTEAD OF OBJECT-ORIENTED)!
source LOCAL VALUES in a NETWORKED DESIGN WORLD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Stellingwerff, Martijn and Verbeke, Johan (Eds.), (2004) DUP Science - Delft University Press, ISBN 90-407-2507-1.
summary This paper talks about the hardness of CAAD.And it talks about the necessity to develop ‘soft’ CAAD.A lot of architectural adventures are stopped in the beginning or the middle of the road. Because of decisions far away from the designers or the clients. These decisions break in against some aspects of the design. Small details often kill a whole design-process.Does architectural design only belong to architects and planners ?To a “Me, myself and I”-world ? For the last 10 years, we have gained a lot of experience of designing architectural landscapes in a specific way. We design in such a way that developing projects can change or evolve strongly within themselves without losing their typical spirit. Change because of external and non-predictable events, change because of unexpected or changing circumstances, change because of the participation of new intervening people….New housing projects in Apeldoorn and Dordrecht,Rehabilitation projects in Gennevilliers (Paris) and Hellersdorf (Berlin), …Schools and hospitals in Amsterdam, …Each time very local aspects are incorporated in the different design-spirits.The networks are similar because of specific design-methods.This paper wants to explain something about this process-spirit.
keywords Architecture, Local values, Globalisation, Computer Aided Architectural Design
series AVOCAAD
type normal paper
email
last changed 2006/01/16 21:38

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