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	55d9
authors	Martens, Bob and Oberascher, Leonhard
year	1999
title	Using the Endoscope in the Country of Lilliput
source	Simulation of Architectural Space - Color and Light, Methods and Effects [Proceedings of the 4rd European Architectural Endoscopy Association Conference / ISBN 3-86005-267-5] Dresden (Germany), 29 September - 1 October 1999, pp. 22-26
summary	The present contribution focuses on the interaction of light and color in the context of spatial changes. A project study on ”Color Overlay” from the study course ”Experimental Color Design” issued the focal point for consideration. The relation between projection and original in the scale model results in incomplete but useful findings on the effects to be expected. Only in the course of the full-scale model test series the performed activities were to be clearly recognized. This contribution thus intends to disentangle the relation web between scale (endoscopic) model viewing and simulation in true size.
keywords	Color Effects, Color Overlay, Endoscopy, Simulation in Full-scale
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	b34d
authors	Russell, P., Kohler, N., Forgber, U., Koch, V. and Rügemer, J.
year	1999
title	Interactive Representation of Architectural Design: The Virtual Design Studio as an Architectural Graphics Laboratory
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 459-465
doi	https://doi.org/10.52842/conf.ecaade.1999.459
summary	This paper introduces the Virtual Design Studio (VDS), an internet based design studio environment established by ifib. VDS transfers lessons learned through research projects in the field of Computer Supported Co-operative Work (CSCW) being carried out at ifib into design education. By training for interdisciplinary co-operation within the design process, the students will become better prepared for the flexibility and co-operability required in planning situations. Increasing the communication and co-operation in the planning process can be achieved through the implementation of IT based virtual workspaces. In the design studio setting, this is done through the use of available internet software and technologies. The methodology of the VDS is briefly described including specific assignments intended to focus student investigations into specific areas including the representation of their work using the world wide web. The pedagogical expectations are discussed and anecdotal evidence precedes an general evaluation of the teaching method. The authors postulate that one of the unintended by-products of the studio is the evolution of an effective use of interactivity in the presentation of design concepts, ideas and solutions. A handful of student work is presented to describe the different approaches taken in using the world wide web (WWW) to display project work. A description of the local evolution (VDS specific) of graphical methods and technologies is followed by a comparison with those used in traditional settings. Representation is discussed with focus on the ability of the WWW to replace, augment or corrupt other methods of presentation. The interactive nature of web based presentations induces alterations to the narration of architectural work and can enhance the spatial perception of design space. Space Perception can be enabled through geometrically true VRML representations, the inclusion of auditory sensations, the abstraction of representation through the use of advertising techniques as well as the introduction of non-linear narrative concepts. Examples used by students are shown. A critical assessment of these new representational methods and the place of current new media within the context of architectural representation is discussed.
keywords	Virtual Design Studio, Architectural Graphics, Teaching
series	eCAADe
email
last changed	2022/06/07 07:56

_id	bacd
authors	Abadí Abbo, Isaac
year	1999
title	APPLICATION OF SPATIAL DESIGN ABILITY IN A POSTGRADUATE COURSE
source	Full-scale Modeling and the Simulation of Light [Proceedings of the 7th European Full-scale Modeling Association Conference / ISBN 3-85437-167-5] Florence (Italy) 18-20 February 1999, pp. 75-82
summary	Spatial Design Ability (SDA) has been defined by the author (1983) as the capacity to anticipate the effects (psychological impressions) that architectural spaces or its components produce in observers or users. This concept, which requires the evaluation of spaces by the people that uses it, was proposed as a guideline to a Masters Degree Course in Architectural Design at the Universidad Autonoma de Aguascalientes in Mexico. The theory and the exercises required for the experience needed a model that could simulate spaces in terms of all the variables involved. Full-scale modeling as has been tested in previous research, offered the most effective mean to experiment with space. A simple, primitive model was designed and built: an articulated ceiling that allows variation in height and shape, and a series of wooden panels for the walls and structure. Several exercises were carried out, mainly to experience cause -effect relationships between space and the psychological impressions they produce. Students researched into spatial taxonomy, intentional sequences of space and spatial character. Results showed that students achieved the expected anticipation of space and that full-scale modeling, even with a simple model, proved to be an effective tool for this purpose. The low cost of the model and the short time it took to be built, opens an important possibility for Institutions involved in architectural studies, both as a research and as a learning tool.
keywords	Spatial Design Ability, Architectural Space, User Evaluation, Learning, Model Simulation, Real Environments
series	other
type	normal paper
email
more	http://info.tuwien.ac.at/efa
last changed	2004/05/04 11:27

_id	3cde
authors	Alik, B.
year	1999
title	A topology construction from line drawings using a uniform plane subdivision technique
source	Computer-Aided Design, Vol. 31 (5) (1999) pp. 335-348
summary	The paper describes an algorithm for constructing the topology from a set of line segments or polylines. The problem appears for example at land-maps that have been drawnby general-purpose drawing packages or captured from blue-prints by digitalisation. The solution comprises two steps; in the first step inconsistencies in the input data aredetected and removed, and in the second step the topology is constructed. The algorithm for topology construction consists of two phases: determination of a concave hull,and generation of polygons. It is shown that the running-time of the presented algorithm is better than O(n2), where n is the number of input points. Because of a largenumber of geometric elements being expected, the geometric search needed at the first step of the algorithm is speeded up by an acceleration techniquea uniform planesubdivision.
keywords	Computational Geometry, Topology Construction, Uniform Space Subdivision
series	journal paper
email
last changed	2003/05/15 21:33

_id	ga9925
id	ga9925
authors	Ambrosini, L., Longatti, M. and Miyajima, H.
year	1999
title	Time sections, abstract machines
source	International Conference on Generative Art
summary	conditions a time-spatial discontinuity in the urban grid, ancient walls casually discovered in a substrate of the contemporary town needs a surplus of information to be understood and interfaced with their current condition. diagrams diverse chronological stages of the urban evolution are mapped on the area, in order to read the historical stratifications as a multiplicity of signs; this abstract approach leads to consider the roman space as guided by metrics, a system of measure superimposed on the landscape, vs. medioeval spatial continuity, where more fluid relations between the same urban elements create a completely different pattern.assemblage (time sections) a surface, automatically displaced from the medioeval diagram, moves along the z axis, the historical stratification direction, intersecting in various, unpredictable, manners a series of paths; these paths start as parallels, allowing an undifferentiated access to the area, and mutate along their developing direction, intertweening and blending each other; linear openings are cut on the surface, virtually connecting the two levels by light, following the roman grid in rhythm and measure. Projected on the lateral wall, the cadence of the vertical and horizontal elements becomes a temporal diagram of the design process.movement time takes part into the process through two kinds of movement: the first one, freezed when reaches the best results, in terms of complexity, is given by the surface intersecting the tubular paths; the second one is represented by multiple routes walking on which the project can be experienced (in absence of any objective, fixed, point of view, movement becomes the only way to understand relations). Thresholds between typical architectural categories (such as inside-outside, object-landscape etc.) are blurred in favour of a more supple condition, another kind of continuity (re)appears, as a new media, between the different historical layers of the city.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	5fee
authors	Corso Pereira, Gilberto
year	1999
title	Visualizacao de Informacoes Urbanas atraves de Multimidia (Visualization of Urban Information by Means of Multimedia)
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 239-243
summary	Visualization is a tool that can aid understanding of phenomenon, process and spatial structures. Another important function is communication, in urban applications case, between planners, technicians, administrators, researchers and citizens. Recent technological development applied to visualization area increments analyze and interpretation capacity. The word visualization used here, is related with the use of computation for data exploration in a visual form, helping comprehension. It is a process of transformation of raw data in images, in information and visual communication. GIS and cartography precede computers. In it development GIS benefited from information technologies development and in this process emphasis goes from treatment of great amount of data to analyze of that data. Computer graphics make possible process and present visually great volume of data, thing that was not possible by conventional methods. Digital data are the key for the plain utilization of potential already available with geoprocessing technologies. Information that interest urban planners came from several sources and information technologies beside integration and manipulation permit visual analyze of spatial data in diverse aspects, from witch the most evident but not less effective a map, tool that let us correlate a great variety of qualitative and quantitative data, for organization, interpretation, presentation and communication. In digital cartographic basic elements of cartographic science were preserved, but through new products, each one execute one of the roles that traditional map plays in different ways. Database replace paper map as way of geographical information storage and cartographic visualization replaces a second role - understanding and explanation - that was satisfied by printed maps. Salvador is one of the most important brazilians metropolis. The project that we discuss have as targets construction of salvador database to permit understanding of urban space through use of thematic cartography. Several steps of project include data acquisition, database formation using data conversion and results visualization through interactive, hypermedia and thematic cartography.
series	SIGRADI
email
last changed	2016/03/10 09:49

_id	4b48
authors	Dourish, P.
year	1999
title	Where the Footprints Lead: Tracking down other roles for social navigation
source	Social Navigation of Information Space, eds. A. Munro, K. H. and D Benyon. London: Springer-Verlag, pp 15-34
summary	Collaborative Filtering was proposed in the early 1990's as a means of managing access to large information spaces by capturing and exploiting aspects of the experiences of previous users of the same information. Social navigation is a more general form of this style of interaction, and with the widening scope of the Internet as an information provider, systems of this sort have rapidly moved from early research prototypes to deployed services in everyday use. On the other hand, to most of the HCI community, the term social navigation" is largely synonymous with "recommendation systems": systems that match your interests to those of others and, on that basis, provide recommendations about such things as music, books, articles and films that you might enjoy. The challenge for social navigation, as an area of research and development endeavour, is to move beyond this rather limited view of the role of social navigation; and to do this, we must try to take a broader view of both our remit and our opportunities. This chapter will revisit the original motivations, and chart something of the path that recent developments have taken. Based on reflections on the original concerns that motivated research into social navigation, it will explore some new avenues of research. In particular, it will focus on two. The first is social navigation within the framework of "awareness" provisions in collaborative systems generally; and the second is the relationship of social navigation systems to spatial models and the ideas of "space" and "place" in collaborative settings. By exploring these two ideas, two related goals can be achieved. The first is to draw attention to ways in which current research into social navigation can be made relevant to other areas of research endeavour; and the second is to re-motivate the idea of "social navigation" as a fundamental model for collaboration in information-seeking."
series	other
last changed	2003/04/23 15:50

_id	d438
authors	Moloney, Jules
year	1999
title	Charcoal, Bits and Balsa: Cross Media Tactics in the Foundation Design Studio
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 110-115
doi	https://doi.org/10.52842/conf.ecaade.1999.110
summary	This paper investigates the space between the computer and traditional design media. The focus is the identification of strategies for extending creativity in the foundation year design studio via tactics of cross media working. The integration of computers into the design studio are described within a particular drawing culture at the University of Auckland. Creativity is related to a pedagogy of 'pattern' developed by M. Linzey. The cross media tactics are based on practical adaptation of the advantages of computing to the context of the foundation design studio (12 weeks / 80 students / 24 computers)
keywords	Education, Media, Studio, Creativity
series	eCAADe
email
last changed	2022/06/07 07:58

_id	c991
authors	Moorhouse, Jon and Brown,Gary
year	1999
title	Autonomous Spatial Redistribution for Cities
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 678-684
doi	https://doi.org/10.52842/conf.ecaade.1999.678
summary	The paper investigates an automated methodology for the appropriate redistribution of usable space in distressed areas of inner cities. This is achieved by categorising activity space and making these spaces morphologically mobile in relation to the topography within a representative artificial space. The educational module has been influenced by theories from the natural environment, which possess patterns that have inherent evolutionary programmes in which the constituents are recyclable, Information is strategically related to the environment to produce forms of growth and behaviour. Artificial landscape patterns fail to evolve, the inhabited landscape needs a means of starting from simplicity and building into the most complex of systems that are capable of re-permutation over time. The paper then describes the latest methodological development in terms of a shift from the use of the computer as a tool for data manipulation to embracing the computer as a design partner. The use of GDL in particular is investigated as a facilitator for such generation within a global, vectorial environment.
keywords	Animated, Urban, Programme, Education, Visual Database
series	eCAADe
email
last changed	2022/06/07 07:58

_id	ff51
authors	Neiman, Bennett R. and Do, Ellen Yi-Luen
year	1999
title	Digital Media and the Language of Vision
source	Media and Design Process [ACADIA ‘99 / ISBN 1-880250-08-X] Salt Lake City 29-31 October 1999, pp. 70-80
doi	https://doi.org/10.52842/conf.acadia.1999.070
summary	Digital media are transforming the practice and teaching of design. Information technologies offer not only better production and rendering tools but also the ability to model, manipulate, and to understand designing in new ways. This paper outlines a thirteen-step methodology used in a seminar that teaches design students how to see, think, and form space using both digital and physical media. The paper describes a systematic approach that follows the tradition of the Bauhaus principles of craftsmanship and visual perception. Precedents are drawn from the use of light, color and texture in the visual arts such as the glass collage assemblages of Albers and Moholy-Nagy’s camera-less photogram. References are also drawn from Kandinsky’s diagrammatic analysis of still life drawings and Kepes’s idea of the language of vision. The focus of the paper is how digital media and physical material can be used interchangeably as instruments in a design environment. The investigation centers on developing teaching methods for seeing, thinking and making of spatial design. A sequence of experimental exercises stimulates students’ intuition and powers of analytical observation. This systematic approach helps students explore how space can be perceived and informed by using types of media that are significantly different in their nature. The methodology explores the concerns and techniques of making and exploring space through the use of light, shadow, motion, color and transparency.
series	ACADIA
email
last changed	2022/06/07 07:58

_id	ascaad2007_025
id	ascaad2007_025
authors	Speed, C.
year	2007
title	A Social Dimension to Digital Architectural Practice
source	Em‘body’ing Virtual Architecture: The Third International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2007), 28-30 November 2007, Alexandria, Egypt, pp. 291-304
summary	In 1995 the first in a series of three books were published by Academy Editions, that have since become a vivid handbook that documents how designers responded to the development of architectural drawing applications and the growth of the internet, to establish a form of digital architecture. Offering dramatic images and emotive texts, many of the architects and designers featured in these books deeply affected the perception of digital architecture’s mission by students and elements of the design community. Concentrating upon how to resolve the view that time and space are separate dimensions, and the immersive and dematerial potentials of cyberspace, the developments of this ‘cyberromanticism’ (Coyne 1999) ultimately were not used to sustain digital architectural activity. This paper uses the Academy Editions series to understand how such a vivid aspect of digital architecture failed to fulfil its aspirations. The paper begins by establishing the premise for digital architecture through a link with mainstream architectures interest in the concept of shelter. Through a summary of the practical and theoretical methods outlined by the early designers within the series of publications, the paper demonstrates the critical potential of the field. However a summary of how the proliferation of early imagery fuelled a visual mannerism traces how the third Architects in Cyberspace publication represented a crisis in both identity and practice. The paper then identifies an opportunity for recovering the theoretical imperatives within digital architecture by reflecting upon the emergence of ‘interactive architectures’ use of a ‘social’ dimension that was previously hindered by the use of computer applications in early digital architecture. The paper closes with a reference to two of the authors practical projects that use social data to inform the generation of digital architecture.
series	ASCAAD
email
last changed	2008/01/21 22:00

_id	1419
authors	Spitz, Rejane
year	1999
title	Dirty Hands on the Keyboard: In Search of Less Aseptic Computer Graphics Teaching for Art & Design
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 13-18
summary	In recent decades our society has witnessed a level of technological development that has not been matched by that of educational development. Far from the forefront in the process of social change, education has been trailing behind transformations occurring in industrial sectors, passively and sluggishly assimilating their technological innovations. Worse yet, educators have taken the technology and logic of innovations deriving predominantly from industry and attempted to transpose them directly into the classroom, without either analyzing them in terms of demands from the educational context or adjusting them to the specificities of the teaching/learning process. In the 1970s - marked by the effervescence of Educational Technology - society witnessed the extensive proliferation of audio-visual resources for use in education, yet with limited development in teaching theories and educational methods and procedures. In the 1980s, when Computers in Education emerged as a new area, the discussion focused predominantly on the issue of how the available computer technology could be used in the school, rather than tackling the question of how it could be developed in such a way as to meet the needs of the educational proposal. What, then, will the educational legacy of the 1990s be? In this article we focus on the issue from the perspective of undergraduate and graduate courses in Arts and Design. Computer Graphics slowly but surely has gained ground and consolidated as part of the Art & Design curricula in recent years, but in most cases as a subject in the curriculum that is not linked to the others. Computers are usually allocated in special laboratories, inside and outside Departments, but invariably isolated from the dust, clay, varnish, and paint and other wastes, materials, and odors impregnating - and characterizing - other labs in Arts and Design courses.In spite of its isolation, computer technology coexists with centuries-old practices and traditions in Art & Design courses. This interesting meeting of tradition and innovation has led to daring educational ideas and experiments in the Arts and Design which have had a ripple effect in other fields of knowledge. We analyze these issues focusing on the pioneering experience of the Núcleo de Arte Eletrônica – a multidisciplinary space at the Arts Department at PUC-Rio, where undergraduate and graduate students of technological and human areas meet to think, discuss, create and produce Art & Design projects, and which constitutes a locus for the oxygenation of learning and for preparing students to face the challenges of an interdisciplinary and interconnected society.
series	SIGRADI
email
last changed	2016/03/10 10:01

_id	d267
authors	Verbeke, J. Provoost, T., Verleye, J., Nys, K., Van Zutphen, R., Achten, H., Turksma, A., Pittioni, G., Asanowicz, A., Jakimowicz A. and Af Klercker, J.
year	1999
title	AVOCAAD, The Experience
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 244-251
doi	https://doi.org/10.52842/conf.ecaade.1999.244
summary	The Leonardo da Vinci project AVOCAAD (Added Value of Computer Aided Architectural Design) aims at stimulating creative and experimental use of computers in the field of Architecture and Construction by the use of new technologies. For this purpose, a large set of exercises and exercise materials was developed and is now available through an interactive web-site. This allows regular students as well as architects in practice to continuously seek for a more interesting and inspiring use of computers and IC-technology, adding value in their own field of interest and work. The interactive web-site generates a virtual forum for exchange of ideas. The AVOCAAD partners as well as the newly joined partners are currently using and testing the available teaching materials (exercises, foreground and background information) with students. Moreover a small design exercise in the context of the project has been the theme of a workshop held at the AVOCAAD 1999 conference. Students and architects were asked to create a design in a predefined space based on experimental architectural music. This paper intends to report on the experiences we gained in using the interactive web-site, the exercises and also doing the workshop. We will address the pedagogical implications of issues like learning environment, continuous and distance learning, and focus on their impact towards CAAD curricula. Examples and results will illustrate the general framework.
keywords	AVOCAAD, CAAD, Creativity, LLL, ODL
series	eCAADe
email
more	http://www.avocaad.org
last changed	2022/06/07 07:58

_id	avocaad_2001_16
id	avocaad_2001_16
authors	Yu-Ying Chang, Yu-Tung Liu, Chien-Hui Wong
year	2001
title	Some Phenomena of Spatial Characteristics of Cyberspace
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	"Space," which has long been an important concept in architecture (Bloomer & Moore, 1977; Mitchell, 1995, 1999), has attracted interest of researchers from various academic disciplines in recent years (Agnew, 1993; Benko & Strohmayer, 1996; Chang, 1999; Foucault, 1982; Gould, 1998). Researchers from disciplines such as anthropology, geography, sociology, philosophy, and linguistics regard it as the basis of the discussion of various theories in social sciences and humanities (Chen, 1999). On the other hand, since the invention of Internet, Internet users have been experiencing a new and magic "world." According to the definitions in traditional architecture theories, "space" is generated whenever people define a finite void by some physical elements (Zevi, 1985). However, although Internet is a virtual, immense, invisible and intangible world, navigating in it, we can still sense the very presence of ourselves and others in a wonderland. This sense could be testified by our naming of Internet as Cyberspace -- an exotic kind of space. Therefore, as people nowadays rely more and more on the Internet in their daily life, and as more and more architectural scholars and designers begin to invest their efforts in the design of virtual places online (e.g., Maher, 1999; Li & Maher, 2000), we cannot help but ask whether there are indeed sensible spaces in Internet. And if yes, these spaces exist in terms of what forms and created by what ways?To join the current interdisciplinary discussion on the issue of space, and to obtain new definition as well as insightful understanding of "space", this study explores the spatial phenomena in Internet. We hope that our findings would ultimately be also useful for contemporary architectural designers and scholars in their designs in the real world.As a preliminary exploration, the main objective of this study is to discover the elements involved in the creation/construction of Internet spaces and to examine the relationship between human participants and Internet spaces. In addition, this study also attempts to investigate whether participants from different academic disciplines define or experience Internet spaces in different ways, and to find what spatial elements of Internet they emphasize the most.In order to achieve a more comprehensive understanding of the spatial phenomena in Internet and to overcome the subjectivity of the members of the research team, the research design of this study was divided into two stages. At the first stage, we conducted literature review to study existing theories of space (which are based on observations and investigations of the physical world). At the second stage of this study, we recruited 8 Internet regular users to approach this topic from different point of views, and to see whether people with different academic training would define and experience Internet spaces differently.The results of this study reveal that the relationship between human participants and Internet spaces is different from that between human participants and physical spaces. In the physical world, physical elements of space must be established first; it then begins to be regarded as a place after interaction between/among human participants or interaction between human participants and the physical environment. In contrast, in Internet, a sense of place is first created through human interactions (or activities), Internet participants then begin to sense the existence of a space. Therefore, it seems that, among the many spatial elements of Internet we found, "interaction/reciprocity" Ñ either between/among human participants or between human participants and the computer interface Ð seems to be the most crucial element.In addition, another interesting result of this study is that verbal (linguistic) elements could provoke a sense of space in a degree higher than 2D visual representation and no less than 3D visual simulations. Nevertheless, verbal and 3D visual elements seem to work in different ways in terms of cognitive behaviors: Verbal elements provoke visual imagery and other sensory perceptions by "imagining" and then excite personal experiences of space; visual elements, on the other hand, provoke and excite visual experiences of space directly by "mapping".Finally, it was found that participants with different academic training did experience and define space differently. For example, when experiencing and analyzing Internet spaces, architecture designers, the creators of the physical world, emphasize the design of circulation and orientation, while participants with linguistics training focus more on subtle language usage. Visual designers tend to analyze the graphical elements of virtual spaces based on traditional painting theories; industrial designers, on the other hand, tend to treat these spaces as industrial products, emphasizing concept of user-center and the control of the computer interface.The findings of this study seem to add new information to our understanding of virtual space. It would be interesting for future studies to investigate how this information influences architectural designers in their real-world practices in this digital age. In addition, to obtain a fuller picture of Internet space, further research is needed to study the same issue by examining more Internet participants who have no formal linguistics and graphical training.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	f851
authors	Ramasubramanian, Pattanaik and Greenberg
year	1999
title	A perceptually based physical error metric for realistic image synthesis
source	Alyn Rockwood, editor, SIGGRAPH 99 Conference Proceedings, Annual Conference Series, ACM SIGGRAPH, Addison Wesley
summary	We introduce a new concept for accelerating realistic image synthesis algorithms. At the core of this procedure is a novel physical error metric that correctly predicts the perceptual threshold for detecting artifacts in scene features. Built into this metric is a computational model of the human visual system's loss of sensitivity at high background illumination levels, high spatial frequencies, and high contrast levels (visual masking). An important feature of our model is that it handles the luminance-dependent processing and spatiallydependent processing independently. This allows us to precompute the expensive spatially-dependent component, making our model extremely efficient. We illustrate the utility of our procedure with global illumination algorithms used for realistic image synthesis. The expense of global illumination computations is many orders of magnitude higher than the expense of direct illumination computations and can greatly benefit by applying our perceptually based technique. Results show our method preserves visual quality while achieving significant computational gains in areas of images with high frequency texture patterns, geometric details, and lighting variations.
series	other
last changed	2003/04/23 15:50

_id	ae38
authors	Jabi, Wassim
year	1999
title	Integrating Databases, Objects and the World-Wide Web for Collaboration in Architectural Design
source	Proceedings of the focus symposium: World Wide Web as Framework for Collaboration in conjunction with the 11th International Conference on Systems Research, Informatics and Cybernetics, The International Institute for Advanced Studies in Systems Research
summary	Architectural design requires specialized vertical knowledge that goes beyond the sharing of marks on paper or the multi-casting of video images. This paper briefly surveys the state-ofthe- art in groupware and outlines the need for vertical and integrated support of synchronous and asynchronous design collaboration. The paper also describes a software prototype (WebOutliner) under development that uses a three-tier persistent object-oriented, web-based technology for a richer representation of hierarchical architectural artifacts using Apple’s WebObjects technology. The prototype contributes to earlier work that defined a framework for a shared workspace consisting of Participants, Tasks, Proposals, and Artifacts. These four elements have been found through observation and analysis to be adequate representations of the essential components of collaborative architectural design. These components are also hierarchical which allows users to filter information, copy completed solutions to other parts of the program, analyze and compare design parameters and aggregate hierarchical amounts. Given its object orientation, the represented artifacts have built-in data and methods that allow them to respond to user actions and manage their own sub-artifacts. In addition, the prototype integrates this technology with Java tools for ubiquitous synchronous web-based access. The prototype uses architectural programming (defining the spatial program of a building) and early conceptual design as examples of seamlessly integrated groupware applications.
keywords	Computer Supported Collaborative Design, WebObjects, Synchronous and Asynchronous Collaboration, Java Applets, Application Server, Web-based Interface
series	other
email
last changed	2002/03/05 19:55

_id	cf2011_p109
id	cf2011_p109
authors	Abdelmohsen, Sherif; Lee Jinkook, Eastman Chuck
year	2011
title	Automated Cost Analysis of Concept Design BIM Models
source	Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 403-418.
summary	AUTOMATED COST ANALYSIS OF CONCEPT DESIGN BIM MODELS Interoperability: BIM models and cost models This paper introduces the automated cost analysis developed for the General Services Administration (GSA) and the analysis results of a case study involving a concept design courthouse BIM model. The purpose of this study is to investigate interoperability issues related to integrating design and analysis tools; specifically BIM models and cost models. Previous efforts to generate cost estimates from BIM models have focused on developing two necessary but disjoint processes: 1) extracting accurate quantity take off data from BIM models, and 2) manipulating cost analysis results to provide informative feedback. Some recent efforts involve developing detailed definitions, enhanced IFC-based formats and in-house standards for assemblies that encompass building models (e.g. US Corps of Engineers). Some commercial applications enhance the level of detail associated to BIM objects with assembly descriptions to produce lightweight BIM models that can be used by different applications for various purposes (e.g. Autodesk for design review, Navisworks for scheduling, Innovaya for visual estimating, etc.). This study suggests the integration of design and analysis tools by means of managing all building data in one shared repository accessible to multiple domains in the AEC industry (Eastman, 1999; Eastman et al., 2008; authors, 2010). Our approach aims at providing an integrated platform that incorporates a quantity take off extraction method from IFC models, a cost analysis model, and a comprehensive cost reporting scheme, using the Solibri Model Checker (SMC) development environment. Approach As part of the effort to improve the performance of federal buildings, GSA evaluates concept design alternatives based on their compliance with specific requirements, including cost analysis. Two basic challenges emerge in the process of automating cost analysis for BIM models: 1) At this early concept design stage, only minimal information is available to produce a reliable analysis, such as space names and areas, and building gross area, 2) design alternatives share a lot of programmatic requirements such as location, functional spaces and other data. It is thus crucial to integrate other factors that contribute to substantial cost differences such as perimeter, and exterior wall and roof areas. These are extracted from BIM models using IFC data and input through XML into the Parametric Cost Engineering System (PACES, 2010) software to generate cost analysis reports. PACES uses this limited dataset at a conceptual stage and RSMeans (2010) data to infer cost assemblies at different levels of detail. Functionalities Cost model import module The cost model import module has three main functionalities: generating the input dataset necessary for the cost model, performing a semantic mapping between building type specific names and name aggregation structures in PACES known as functional space areas (FSAs), and managing cost data external to the BIM model, such as location and construction duration. The module computes building data such as footprint, gross area, perimeter, external wall and roof area and building space areas. This data is generated through SMC in the form of an XML file and imported into PACES. Reporting module The reporting module uses the cost report generated by PACES to develop a comprehensive report in the form of an excel spreadsheet. This report consists of a systems-elemental estimate that shows the main systems of the building in terms of UniFormat categories, escalation, markups, overhead and conditions, a UniFormat Level III report, and a cost breakdown that provides a summary of material, equipment, labor and total costs. Building parameters are integrated in the report to provide insight on the variations among design alternatives.
keywords	building information modeling, interoperability, cost analysis, IFC
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	36d3
authors	Af Klercker, Jonas
year	1999
title	A CAVE-Interface in CAAD-Education?
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. 313-323
doi	https://doi.org/10.52842/conf.caadria.1999.313
summary	The so called "CAVE-interface" is a very interesting and thrilling development for architects! It supports a better illusion of space by exposing almost a 270° view of a computer model than the 60° which can be viewed on an ordinary computer screen. At the Lund University we have got the possibility to experiment with a CAVE-installation, using it in research and the education of CAAD. The technique and three experiments are discribed. The possibilities are discussed and some problems and questions are put forward.
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	b73a
authors	Angelo,C.V., Bins Ely, V.H.M., Bueno,A.P., Ludvig C. and Trezub, D.
year	1999
title	Space Syntax and the New Transportation System in the Santa Catarina Island
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 434-437
summary	The paper reports an on-going research that aims at describing and analysing some of the syntactic characteristics of the urban space of Santa Catarina Island, in an attempt to evaluate its performance, more specifically its social and spatial integration and segregation. The research has been conducted with the aid of the Aximagic software, still in exam stage and not yet released to the public, a tool being developed by a group of researches of the Rio Grande do Sul Federal University and given up by Prof. Doctor Benamy Turkienicz. The software is part of a larger georeferenced program called CityZoom wich includes others tools to the comprehention of the urban morphology. This program works with graphic pictures in the inlet of data and also in the acquisition of results. The syntactic study of the Santa Catarina Island as a whole aims to obtain the comprehension of its global structure, relating it to the integrated public transportation system proposed to Florianópolis. These studies should allow an understanding of the impact the developments will have upon the urban morphology, and the new public transportation system.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	bd21
authors	Barría Chateau, H., García Alvarado, R., Lagos Vergara, R. and Parra Márquez, J.C.
year	1999
title	Evaluation of Spatial Perception in Virtual Environments
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 145-148
summary	The 3D environments created by computers can be used as a powerful simulation tool for architecture, especially with inmersive devices, but it is necessary to know properly their spatial characteristics to use it effectively. It is also important to consider their possibilities in communication networks and their implications in contemporary architecture. For this reason, the goal of this research is to evaluate the perception of virtual architectonic spaces in relation to the perception of real architectonic spaces. This research is based on the comparison of experiences of university students in a real space (Entrance Hall of Faculty of Economy) and in the same space modeled by a computer. The evaluation considers tests with stereoscopic helmets and interactive navigation, making questionnaires to characterize the sensation of dimensions, relationships and time for an specific activity. The measuring of real and virtual spaces are made through references (furniture, textures, etc.) or by proportional relations between height, width and depth, in different patterns. The experience also reveals mental schemes to perceive the dimension of architectonic space and the orientation in a real and virtual environment. Besides, the research allows to relate the different levels of complexity and information with the understanding of real architectonic space and modeled space.
series	SIGRADI
email
last changed	2016/03/10 09:47

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