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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Hits 1 to 20 of 623

_id 9cf4
authors Chan, C., Hill, L. and Cruz-Neira, C.
year 1999
title Is it Possible to Design in Full Scale? A CAD Tool in a Synthetic Environment
doi https://doi.org/10.52842/conf.caadria.1999.043
source CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 43-52
summary This project developed a Virtual Architectural Design Tool (VADeT) executed in the C2 Virtual Reality (VR) space. C2 is a synthetic CAVE environment providing a full-scale setting for image projection and perception. Applying this tool for design offers four advantages over other CAD systems. First, it enables navigation performing in full scale to create the sense of immersion and reflection of the seeing-as. Second, it allows the creation, modification, and editing of three-dimensional objects in a virtual space. Third, designs can be modified and viewed simultaneously inside or outside of the generated model to obtain the best design products. Fourth, the entire design process can be recorded and played back. Collectively, this tool serves the purposes of: (1) a three-dimensional sketching tool for manipulating 3-D objects, (2) a design study tool for transparently displaying the design processes, and (3) a design teaching tool to demonstrate the processes by which designers do design. Thus, design in a full-scale representation not only is possible but also is a new and unconventional mode that will heavily influence design thinking.
series CAADRIA
last changed 2022/06/07 07:56

_id 7ad1
authors Giordano, Rubén F. and Tosello, María Elena
year 1999
title Laberinto: Una Biblioteca para la Virtualidad. Reflexiones y Acontecimientos en el Cyberespacio (Labyrinth: A Library for Virtuality. Reflections and Events in Cyberspace)
source III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 83-86
summary This project investigates in the limits of the word like only means of structuring of the thought, before the appearance of new paradigms: the multimedias and the ciber-space that have transformed so much the language written as the architectural one causing unpublished situations: 1.) The transformation of a concrete container to other virtual. 2.) The transformation of the design object, of one static material to another that is a process. 3.) The transformation in the traditional ways of thinking (reversible as the formal logic of the mathematics) to new imaginarys epistemologicals. // These non alone events have caused changes in the forms of to know and to communicate the reality but rather the same one suffers a dilation process. We present for their exploration, a road synthesized in some hypotheses that were elaborated with reason of the International Competition of ACADIA 1998: 1.) The new communication systems (cibercomunication) they generate a new territory that should be colonized. This territory this conformed by objects related by infinite bonds (hipertext). 2.) The topographical form is not lineal and sequential, this it is multidirectional and multiradial. The phenomenon of the blow-up and the dilation are the mechanisms with those that the new objects are generated. 3.) These related fields generate interstitial empty spaces where it appears the desire. The interstice like existential space.
series SIGRADI
email
last changed 2016/03/10 09:52

_id 63ad
authors Wang, Chao-Jen
year 1999
title Architectural Design Thinking in Virtual Reality
doi https://doi.org/10.52842/conf.caadria.1999.071
source CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 71-80
summary Throughout the history of the development of architectural design, from the use of planar representations to three-dimensional media using prespective and physical models, up to the present application of computer drafting, computer modeling, animation and other new design media, drawing has traditionally been used by designers to carry out the most basic design reasoning. Through discussion by Bridges and Charitos (1997, pp. 143), virtual reality (VR) has become a new design medium used by designers. Given that different media lead to different phenomena in design reasoning (Mitchell, 1990), this paper probes into differences in the attributes of design reasoning derived from traditional drawing and those observed when virtual reality is used to perform design tasks.
series CAADRIA
email
last changed 2022/06/07 07:58

_id 1a3d
authors Willey, David
year 1999
title Sketchpad to 2000: From Computer Systems to Digital Environments
doi https://doi.org/10.52842/conf.ecaade.1999.526
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 526-532
summary It can be argued that over the last thirty five years computer aided architectural design (CAAD) has made little impact in terms of aiding design. The paper provides a broadbrush review of the last 35 years of CAAD research and suggests that the SKETCHPAD notion that has dominated CAAD since 1963 is now a flawed concept. Then the discipline was replete with Modernist concepts of optimal solutions, objective design criteria and universal design standards. Now CAD needs to proceed on the basis of the Post Modern ways of thinking and designing opened up by digital techniques - the Internet, multimedia, virtual reality, electronic games, distance learning. Computers facilitate information flow and storage. In the late seventies and eighties the CAAD research community's response to the difficulties it had identified with the construction of integrated digital building models was to attempt to improve the intelligence of the computer systems to better match the understanding of designers. Now it is clear that the future could easily lie with CAAD systems that have almost no intelligence and make no attempt to aid the designer. Communication is much more central to designing than computing.
keywords History, Intelligence, Interface, Sketchpad, Web
series eCAADe
email
last changed 2022/06/07 07:56

_id e336
authors Achten, H., Roelen, W., Boekholt, J.-Th., Turksma, A. and Jessurun, J.
year 1999
title Virtual Reality in the Design Studio: The Eindhoven Perspective
doi https://doi.org/10.52842/conf.ecaade.1999.169
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 169-177
summary Since 1991 Virtual Reality has been used in student projects in the Building Information Technology group. It started as an experimental tool to assess the impact of VR technology in design, using the environment of the associated Calibre Institute. The technology was further developed in Calibre to become an important presentation tool for assessing design variants and final design solutions. However, it was only sporadically used in student projects. A major shift occurred in 1997 with a number of student projects in which various computer technologies including VR were used in the whole of the design process. In 1998, the new Design Systems group started a design studio with the explicit aim to integrate VR in the whole design process. The teaching effort was combined with the research program that investigates VR as a design support environment. This has lead to increasing number of innovative student projects. The paper describes the context and history of VR in Eindhoven and presents the current set-UP of the studio. It discusses the impact of the technology on the design process and outlines pedagogical issues in the studio work.
keywords Virtual Reality, Design Studio, Student Projects
series eCAADe
email
last changed 2022/06/07 07:54

_id 6d88
authors Achten, Henri H. and Van Leeuwen, Jos P.
year 1999
title Feature-Based High Level Design Tools - A Classification
source Proceedings of the Eighth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-8536-5] Atlanta, 7-8 June 1999, pp. 275-290
summary The VR-DIS project aims to provide design support in the early design stage using a Virtual Reality environment. The initial brief of the design system is based on an analysis of a design case. The paper describes the process of analysis and extraction of design knowledge and design concepts in terms of Features. It is demonstrated how the analysis has lead to a classification of design concepts. This classification forms one of the main specifications for the VR-based design aid system that is being developed in the VR-DIS programme. The paper concludes by discussing the particular approach used in the case analysis and discusses future work in the VR-DIS research programme.
keywords Features, Feature-Based modelling, Architectural Design, Design Process, Design Support
series CAAD Futures
email
last changed 2006/11/07 07:22

_id 4d95
authors Alvarado, Rodrigo Garcia and Maver, Tom
year 1999
title Virtual Reality in Architectural Education: Defining Possibilities
doi https://doi.org/10.52842/conf.acadia.1999.007
source ACADIA Quarterly, vol. 18, no. 4, pp. 7-9
summary Introduction: virtual reality in architecture Virtual Reality (VR) is an emergent computer technology for full 3D-simulations, which has a natural application in the architectural work, due that activity involves the complete definition of buildings prior to its construction. Although the profession has a long tradition and expertise in the use of 2D-plans for the design of buildings, the increasing complexity of projects and social participation requires better media of representation. However, the technological promise of Virtual Reality involves many sophisticated software and hardware developments. It is based on techniques of 3D-modelling currently incorporated in the majority of drawing software used in architecture, and also there are several tools for rendering, animation and panoramic views, which provide visual realism. But other capabilities like interactivity and sense of immersion are still complex, expensive and under research. These require stereoscopic helmets, 3D pointers and trackers with complicated configurations and uncomfortable use. Most advanced installations of Virtual-Reality like CAVEs involve much hardware, building space and restrictions for users. Nevertheless, diverse developers are working in Virtual-Reality user-friendly techniques and there are many initial experiences of architectural walk-throughs showing advantages in the communication and development of designs. Then we may expect an increasing use of Virtual Reality in architecture.
series ACADIA
email
last changed 2022/06/07 07:54

_id 7674
authors Bourdakis, Vassilis and Charitos, Dimitrios
year 1999
title Virtual Environment Design - Defining a New Direction for Architectural Education
doi https://doi.org/10.52842/conf.ecaade.1999.403
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 403-409
summary This paper considers the design and development of virtual environments (VEs) and the way that it relates to traditional architectural education and practice. The need for practitioners who will contribute to the design of 3D content for multimedia and virtual reality applications is identified. The design of space in a VE is seen as being partly an architectural problem. Therefore, architectural design should play an important role in educating VE designers. Other disciplines, intrinsically related to the issue of VE design, are also identified. Finally, this paper aims at pointing out the need for a new direction within architectural education, which will lead towards a generation of VE architects.
keywords Virtual Environments, Architectural Design, Architectural Education
series eCAADe
email
last changed 2022/06/07 07:54

_id 69f5
authors Chan, C., Maves, J. and Cruz-Neira, C.
year 1999
title An Electronic Library for Teaching Architectural History
doi https://doi.org/10.52842/conf.caadria.1999.335
source CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 335-344
summary This research project developed an electronic library of significant buildings chosen to represent seven selected periods of Western architectural history: Egyptian (Mortuary temple of Queen Hatshepsut), Greek (Parthenon), Roman (Pantheon), Romanesque (Speyer Cathedral), Gothic (Notre Dame Cathedral), Renaissance (Tempietto), and Modern (Des Moines Art Center). All buildings were reconstructed in their original or intended forms based on plans, drawings, photographs, and historical texts. Two products were generated by this project: (1) materials to be displayed on the World Wide Web, including rendered still images for perception, movies for a visual guide, and Virtual Reality Modeling Language (VRML) models for user navigation; and (2) virtual reality (VR) models to be displayed in the C2 (an improved version of the Cave Automatic Virtual Environment or CAVE facility). The benefits of these VR models displayed on the Web and in the C2 are their easy accessibility at any time from various geographic locations and the immersive experience that enhances viewersÌ understanding of the effects of spatial proportions on form and of colors on materials.
series CAADRIA
more http://archvr.design.iastate.edu/miller
last changed 2022/06/07 07:56

_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 2690
authors Chiu, Mao-Lin
year 1999
title Design Navigation and Construction Simulation by Virtual Reality
doi https://doi.org/10.52842/conf.caadria.1999.031
source CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 31-41
summary This paper depicts the approach of constructing a virtual reality environment for simulating architectural design and construction operations. The virtual environment is established to demonstrate the spatial performance of design and constructability of construction operations. Particularly, the functions such as navigation of construction sites, simulation of construction operations, and evaluation of construction details will be critical to construction operations. The system shell is implemented by JAVA on the web and integrated with VRML for supporting the above functions. The study focuses on the needs for the system integration and interface design. Four modes of human computer interfaces are proposed, including the user, agent, monitor, and immersion modes. Finally, this paper provides demonstration of construction simulation in an office building project to highlight the above discussion. The operations of crane towers and curtain wall installation are also studied in the construction process. In conclusion, this paper demonstrates the potential uses and limitation of virtual reality in simulation of the built environment.
series CAADRIA
email
last changed 2022/06/07 07:56

_id 26e4
authors Da Rosa Sampaio, Andrea
year 1999
title Design Thinking Proces and New Paradigms of Graphic Expression (Design Thinking Proces and New Paradigms of Graphic Expression)
source III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 68-73
summary It is undeniable that infotechnology has brought significant changes into architectural representation. Whether these changes has altered design conception proccess or are only media matters, is a discussion concerned with the role of graphic expression in architects designs. Is it just a language, or a design thinking tool, fully engaged with the formal solution? Thus, the investigation of the role of represententional systems in the design thinking proccess and the analysis of their intrinsic relationship will approach traditional methods facing the widespread use of Computer Aided Design. There are polemics about the issue: on the one hand, seductive simulations and a plethora of rendering choices available, on the other hand, impersonal expression, to name a few arguments for and against CAD use. Computers have not replaced the straight reciprocity between the acts of conceiving and drawing, between mind and image, which results in manual sketches, quite effective in embodying a design idea. Yet, we have to admit that manipulating complex forms such as Gehry's Guggenheim Museum quickly would not be feasible before CAD advent. We have been faced with new paradigms challenging the graphic expression of architects and urban designers. Besides the consequences of this new reality to design thinking, a crucial point to be stressed at this discussion is the possibility of achieving a balance between the cherished mind-hand intimacy and the available technological resources.
keywords Traditional Representation, Design Thinking, CAD
series SIGRADI
email
last changed 2016/03/10 09:50

_id 22b7
authors Donath, D. and Regenbrecht, H.
year 1999
title Der Bleistift im 21. Jahrhundert. Das architektonische Entwerfen in interaktiven VR Umgebungen. (The pencil in the 21th century. The architectural design process in Virtual Environments)
source IAO Forum Architektur im Informationszeitalter, FhG Stuttgart, 21.-22.4.1999, proceedings, chapter 7, 10 p.
summary In the very young discipline of Virtual Reality Applications only a few reports are available about using this technology for periods longer than in experimental setups. This paper describes experiences made during five years of usage of Virtual Reality (VR) in educational training for architects. About 100 different people were working with our systems during this period. Three programs were developed at Bauhaus University with the aim of teaching architectural students to design in three-dimesional environments. The first program called voxDesign is based on the metaphor of voxels. The second program, planeDesign, uses rectangualar planes to describe room-like situations. An other program vram for the user orientated description of flexible and own interfaces and environments is current under construction, a first verson is presented at the international computer exhibition ìCeBitî in 1999. All programs force the users to design in a 1:1 scale, that means that the design and the feedback actions are coupled in an embodied way. A real walking metaphor is used for navigation. The experiences made by users are explained too.
keywords Virtual Reality, Interaction, Human Computer Interfaces, Digital Media
series other
email
last changed 2003/02/26 18:58

_id 837b
authors Elger, Dietrich and Russell, Peter
year 2000
title Using the World Wide Web as a Communication and Presentation Forum for Students of Architecture
doi https://doi.org/10.52842/conf.ecaade.2000.061
source Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 61-64
summary Since 1997, the Institute for Industrial Building Production (ifib) has been carrying out upper level design studios under the framework of the Netzentwurf or Net-Studio. The Netzentwurf is categorized as a virtual design studio in that the environment for presentation, criticism and communication is web based. This allows lessons learned from research into Computer Supported Cooperative Work (CSCW) to be adapted to the special conditions indigenous to the architectural design studio. Indeed, an aim of the Netzentwurf is the creation and evolution of a design studio planing platform. In the Winter semester 1999-2000, ifib again carried out two Netzentwurf studios. involving approximately 30 students from the Faculty of Architecture, University of Karlsruhe. The projects differed from previous net studios in that both studios encompassed an inter-university character in addition to the established framework of the Netzentwurf. The first project, the re-use of Fort Kleber in Wolfisheim by Strasbourg, was carried out as part of the Virtual Upperrhine University of Architecture (VuuA) involving over 140 students from various disciplines in six institutions from five universities in France, Switzerland and Germany. The second project, entitled "Future, Inc.", involved the design of an office building for a scenario 20 years hence. This project was carried out in parallel with the Technical University Cottbus using the same methodology and program for two separate building sites.
keywords Virtual Design Studios, Architectural Graphics, Presentation Techniques
series eCAADe
email
more http://www.uni-weimar.de/ecaade/
last changed 2022/06/07 07:55

_id 8c4f
authors Emdanat, Samir S. and Vakalo, Emmanuel-G.
year 1999
title An Experiment in Using Virtual Reality to Teach Compositional Principles to Beginning Students
doi https://doi.org/10.52842/conf.caadria.1999.325
source CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 325-333
summary This paper introduces an experiment in using educational toys as a means for teaching compositional principles to architectural students using: (1) a traditional model-based approach and (2) "BlocksWorld" a computer-based system that utilizes immersive virtual reality technologies. The paper discusses the general nature of the exercise and its objectives and illustrates some of the resulting student projects. Then it introduces an approach to implementing an interactive virtual design environment that is based on this exercise.
series CAADRIA
email
last changed 2022/06/07 07:56

_id 5689
authors Garcia Alvarado, Rodrigo, Hempel Holzapfel, Ricardo and Parra, Juan Carlos
year 1999
title Virtual Design for Innovative Timber Structures
source AVOCAAD Second International Conference [AVOCAAD Conference Proceedings / ISBN 90-76101-02-07] Brussels (Belgium) 8-10 April 1999, pp. 319-326
summary The major timber structures have great efficiency and beauty, but not many use in buildings due difficulties to represent and resolve theirs geometrical complexity, regulated by several constructive rules. The spatial richness and attractive of these structures can be a contribution in architecture, and encourage the use of wood. For aid the design and impels innovative solutions we are developing a computer system to program the geometrical regulations and allow a tridimensional visualization of different models with virtual-reality devices. First we are studing the architectural morphology and design process of structures more typically used; beams, trusses, frames and arcs. Establishing theirs proportions, distribution, shapes alternatives and the computational algorithm. In other hand we are evaluating the 3D-visualization in the innovation of designs. Some students of architecture developed in a virtual- system small projects based on other projects designed with traditional media. The models were compare by a panel of professors, considering overall quality and creativity. The results of that experience shows advantages in geometrical innovation, specially in organic shapes user-centered instead of orthogonal compositions. But also some constructive fails, which is necessary to support with related procedures.
series AVOCAAD
last changed 2005/09/09 10:48

_id 600e
authors Gavin, Lesley
year 1999
title Architecture of the Virtual Place
doi https://doi.org/10.52842/conf.ecaade.1999.418
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 418-423
summary The Bartlett School of Graduate Studies, University College London (UCL), set up the first MSc in Virtual Environments in the UK in 1995. The course aims to synthesise and build on research work undertaken in the arts, architecture, computing and biological sciences in exploring the realms of the creation of digital and virtual immersive spaces. The MSc is concerned primarily with equipping students from design backgrounds with the skills, techniques and theories necessary in the production of virtual environments. The course examines both virtual worlds as prototypes for real urban or built form and, over the last few years, has also developed an increasing interest in the the practice of architecture in purely virtual contexts. The MSc course is embedded in the UK government sponsored Virtual Reality Centre for the Built Environment which is hosted by the Bartlett School of Architecture. This centre involves the UCL departments of architecture, computer science and geography and includes industrial partners from a number of areas concerned with the built environment including architectural practice, surveying and estate management as well as some software companies and the telecoms industry. The first cohort of students graduated in 1997 and predominantly found work in companies working in the new market area of digital media. This paper aims to outline the nature of the course as it stands, examines the new and ever increasing market for designers within digital media and proposes possible future directions for the course.
keywords Virtual Reality, Immersive Spaces, Digital Media, Education
series eCAADe
email
more http://www.bartlett.ucl.ac.uk/ve/
last changed 2022/06/07 07:51

_id 3940
authors Hall, Rick
year 1999
title Realtime 3D visual Analysis of Very Large Models at Low Cost
doi https://doi.org/10.52842/conf.ecaade.1999.437
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 437-441
summary Computer based visualisation of 3D models in architecture has been possible for 20 years or more, and the software technology has steadily improved during this time so that now incredibly realistic images can be generated from any viewpoint in a model, and impressive fly through sequences can bring a model to life in ways previously not possible. Virtual reality is with us and multi-media enables us to present a finished design in increasingly seductive ways. However, these forms of output from a 3D model offer much more limited benefits during the design process and particularly on large complex models because they are so computing intensive and it often require many hours to produce just one image. Anything other than a small and relatively simple model cannot be viewed dynamically in real-time on a desktop PC of the type commonly used by architects in a design office. Until now the solution to this problem has meant investing in expensive design review hardware and software with its inherent need for trained, skilled labour. As a result, design review products are often viewed as a luxury or costly necessity.
keywords Visual Analysis, Low Cost, 3D Modelling
series eCAADe
last changed 2022/06/07 07:50

_id b989
authors Jahn, Gonzalo Vélez
year 1999
title Realidad Virtual en Arquitectura - Actualidad y Futuro (Virtual Reality in Architecture - The Present and the Future)
source III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 79-82
summary During recent years, developments in the area of virtual reality and its applications in architecture have undergone a number of important transformations that point out the need of an updated revision and adjustment as regards its current situation status and also that which concerns its potentialities within a foreseeable future. This paper seeks to provide an ample vision about recent developments of VR in architectural applications and, also, about its potential developments within the settings provided by such imminent phenomena as the upcoming Internet II and its future impact on the three dimensional and multisensorial qualities of the information that will move within cyberspace in the next decades. The paper also comments on experiencies underway at the Laboratory of Advanced Techniques in Design, Faculty of Architecture and Urbanism, Universidad Central de Venezuela in collaboration with the Laboratory of Computer Graphics, School of Computing, also at UCV, Caracas. Finally, a number of considerations and conjectures are dedicated to the new field of VR multi-access worlds and its potential to virtual architectural modeling in the Intenet-WWW.
series SIGRADI
email
last changed 2016/03/10 09:53

_id avocaad_2001_22
id avocaad_2001_22
authors Jos van Leeuwen, Joran Jessurun
year 2001
title XML for Flexibility an Extensibility of Design Information Models
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 The VR-DIS research programme aims at the development of a Virtual Reality – Design Information System. This is a design and decision support system for collaborative design that provides a VR interface for the interaction with both the geometric representation of a design and the non-geometric information concerning the design throughout the design process. The major part of the research programme focuses on early stages of design. The programme is carried out by a large number of researchers from a variety of disciplines in the domain of construction and architecture, including architectural design, building physics, structural design, construction management, etc.Management of design information is at the core of this design and decision support system. Much effort in the development of the system has been and still is dedicated to the underlying theory for information management and its implementation in an Application Programming Interface (API) that the various modules of the system use. The theory is based on a so-called Feature-based modelling approach and is described in the PhD thesis by [first author, 1999] and in [first author et al., 2000a]. This information modelling approach provides three major capabilities: (1) it allows for extensibility of conceptual schemas, which is used to enable a designer to define new typologies to model with; (2) it supports sharing of conceptual schemas, called type-libraries; and (3) it provides a high level of flexibility that offers the designer the opportunity to easily reuse design information and to model information constructs that are not foreseen in any existing typologies. The latter aspect involves the capability to expand information entities in a model with relationships and properties that are not typologically defined but applicable to a particular design situation only; this helps the designer to represent the actual design concepts more accurately.The functional design of the information modelling system is based on a three-layered framework. In the bottom layer, the actual design data is stored in so-called Feature Instances. The middle layer defines the typologies of these instances in so-called Feature Types. The top layer is called the meta-layer because it provides the class definitions for both the Types layer and the Instances layer; both Feature Types and Feature Instances are objects of the classes defined in the top layer. This top layer ensures that types can be defined on the fly and that instances can be created from these types, as well as expanded with non-typological properties and relationships while still conforming to the information structures laid out in the meta-layer.The VR-DIS system consists of a growing number of modules for different kinds of functionality in relation with the design task. These modules access the design information through the API that implements the meta-layer of the framework. This API has previously been implemented using an Object-Oriented Database (OODB), but this implementation had a number of disadvantages. The dependency of the OODB, a commercial software library, was considered the most problematic. Not only are licenses of the OODB library rather expensive, also the fact that this library is not common technology that can easily be shared among a wide range of applications, including existing applications, reduces its suitability for a system with the aforementioned specifications. In addition, the OODB approach required a relatively large effort to implement the desired functionality. It lacked adequate support to generate unique identifications for worldwide information sources that were understandable for human interpretation. This strongly limited the capabilities of the system to share conceptual schemas.The approach that is currently being implemented for the core of the VR-DIS system is based on eXtensible Markup Language (XML). Rather than implementing the meta-layer of the framework into classes of Feature Types and Feature Instances, this level of meta-definitions is provided in a document type definition (DTD). The DTD is complemented with a set of rules that are implemented into a parser API, based on the Document Object Model (DOM). The advantages of the XML approach for the modelling framework are immediate. Type-libraries distributed through Internet are now supported through the mechanisms of namespaces and XLink. The implementation of the API is no longer dependent of a particular database system. This provides much more flexibility in the implementation of the various modules of the VR-DIS system. Being based on the (supposed to become) standard of XML the implementation is much more versatile in its future usage, specifically in a distributed, Internet-based environment.These immediate advantages of the XML approach opened the door to a wide range of applications that are and will be developed on top of the VR-DIS core. Examples of these are the VR-based 3D sketching module [VR-DIS ref., 2000]; the VR-based information-modelling tool that allows the management and manipulation of information models for design in a VR environment [VR-DIS ref., 2000]; and a design-knowledge capturing module that is now under development [first author et al., 2000a and 2000b]. The latter module aims to assist the designer in the recognition and utilisation of existing and new typologies in a design situation. The replacement of the OODB implementation of the API by the XML implementation enables these modules to use distributed Feature databases through Internet, without many changes to their own code, and without the loss of the flexibility and extensibility of conceptual schemas that are implemented as part of the API. Research in the near future will result in Internet-based applications that support designers in the utilisation of distributed libraries of product-information, design-knowledge, case-bases, etc.The paper roughly follows the outline of the abstract, starting with an introduction to the VR-DIS project, its objectives, and the developed theory of the Feature-modelling framework that forms the core of it. It briefly discusses the necessity of schema evolution, flexibility and extensibility of conceptual schemas, and how these capabilities have been addressed in the framework. The major part of the paper describes how the previously mentioned aspects of the framework are implemented in the XML-based approach, providing details on the so-called meta-layer, its definition in the DTD, and the parser rules that complement it. The impact of the XML approach on the functionality of the VR-DIS modules and the system as a whole is demonstrated by a discussion of these modules and scenarios of their usage for design tasks. The paper is concluded with an overview of future work on the sharing of Internet-based design information and design knowledge.
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