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 241 to 258 of 258

_id 46f1
authors Patterson, J.F.
year 1990
title Rendezvous: An Architecture for Synchronous Multi-User Applications
source Proceedings, Conference on Computer-Supported Cooperative Work. New York: ACM, pp. 317-328
summary Rendezvous is an architecture for creating synchronous multi-user applications. It consists of two parts: a run-time architecture for managing the multi-user session and a start-up architecture for managing the network connectivity. The run-time architecture is based on a User Interface Management System called MEL, which is a language extension to Common Lisp providing support for graphics operations, object-oriented programming, and constraints. Constraints are used to manage three dimensions of sharing: sharing of underlying information, sharing of views, and sharing of access. The start-up architecture decouples invoking and joining an application so that not all users need be known when the application is started. At present, the run-time architecture is completed and running test applications. As a first test of the complete Rendezvous architecture, we will implement a multi-user card game by the end of the summer.
series other
last changed 2003/04/23 13:50

_id d0f5
authors Persson, Lars
year 1991
title TO CO-OPERATE WITH DWELLERS IN A FULL-SCALE MOCKUP
source Proceedings of the 3rd European Full-Scale Modelling Conference / ISBN 91-7740044-5 / Lund (Sweden) 13-16 September 1990, pp. 31-33
summary Since 3 years we are rebuilding a district called Fröslunda. Fröslunda is a district of Eskilstuna containing 1800 apartments. Fröslunda was built during the late 1940s and the beginning of the 50s. Today it is a well known and popular district. Side by side the inhabitants and buildings have grown old. Primarily the residents are elderly. The need of elevators and other arrangements primarily for the elderly have increased. Buildings are now technically in bad condition. Big efforts are needed to adjust them to the standard of today. All this needed a radical rebuilding programme.
keywords Full-scale Modeling, Model Simulation, Real Environments
series other
type normal paper
more http://info.tuwien.ac.at/efa
last changed 2004/11/25 15:19

_id a8d7
authors Rapaport, William J.
year 1990
title Predication, Fiction, and Artificial Intelligence
source 27 (21) p. : ill. May, 1990. 90-11. includes bibliography
summary This paper describes the SNePS knowledge-representation and reasoning system. SNePS is an intentional, propositional, semantic-network processing system used for research in AI. The author looks at how predication is represented in such a system when it is used for cognitive modeling and natural- language understanding and generation. In particular, the author discusses issues in the representation of fictional entities and the representation of propositions from fiction, using SNePS. A brief survey is given of four philosophical ontological theories of fiction and sketch an epistemological theory of fiction (implemented in SNePS) using a story operator and rules allowing propositions to 'migrate' into and out of story 'spaces.'
keywords knowledge, representation, systems, AI, semantic networks, cognition, natural languages, intentionallity
series CADline
last changed 2003/06/02 11:58

_id 0ec5
authors Richens, P.
year 1990
title Micro CAD
source The Scottish Construction Industry Computer Exhibition and Conference, RIAS, Glasgow June 1990
series other
email paul.richens@arct.cam.ac.uk
more http://www.arct.cam.ac.uk/research/pubs/
last changed 2000/03/05 18:05

_id e473
authors Roberts, S.E.
year 1990
title The Theory behind and Development of an Architectural Sketch Modelling System
source University of Sheffield, School of Architectural Studies
series thesis:PhD
last changed 2003/02/12 21:37

_id 22a4
authors Rogers, D.F.
year 1990
title Mathematical elements for computer graphics
source McGraw Hill, USA
summary The second edition of this classic computer graphics book represents a major rewrite. The clear concise discussion, the detailed algorithms, worked examples and numerous illustrations make the book of special interest to students, programmers and computer graphics professionals. The numerous detailed worked examples make it especially suitable for self-study. The first edition of the book, published in 1976, was one of the earliest computer graphics books. That first edition is still a staple on the bookshelves of many of the pioneers in computer graphics. The book thoroughly covers two- and three-dimensional transformations including rotation, scaling, translation, reflection, rotation about arbitrary points and axes, reflection about arbitrary lines and through arbitrary planes and points at infinity. Plane and space curves including efficient methods for representing conic sections, cubic splines, parabolically blended, Bezier and rational and non-rational B-spline (NURBS) curves are discussed. The discussion of surfaces includes surfaces of revolution, sweep surfaces, ruled and developable surfaces, Coons surfaces, Bezier and rational and non-rational B-splines (NURBS) surfaces. As with all the topics in the book, the discussion of both rational and non-rational B-spline curves and surfaces is accompanied by numerous detailed worked examples. The appendices contain over 50 pseudocoded algorithms including over 25 algorithms for Bezier and B-spline curves and surfaces.
series other
last changed 2003/04/23 13:14

_id d9fa
authors Salomon, Gavriel
year 1990
title Effects with and of Computers and the Study of Computer-based Learning Environments
source Chapter in Computer-Based Learning Environments and Problem Solving, ed. E. De Corte, M. C. Linn, H. Mandl, and L. Verschaffel. New York: Springer-Verlag
summary Several factors have contributed to the developments in computer-based learning environments. Improvements and advances in hardware capabilities have afforded greater computing power. Advances in cognitive and instructional science have moved thinking beyond the limits of behavioural psychology. The new systems of computer-based learning environments are being designed with a view to facilitating complex problem-solving through integrating wholes of knowledge (Dijkstra, Krammer & Merriënboer, 1992). Thus, many see in the computer a means to enhance students' cognitive skills and general problem-solving ability. This is in spite of the fact that studies have failed to conclusively confirm the hypothesis that computer-based learning environments facilitate the acquisition and transfer of higher-order thinking and learning skills (Dijkstra, Krammer & Merriënboer, 1992). Salomon (1992) argues that computers make possible student involvement in higher-order thinking skills by performing many of the lower-level cognitive tasks, by providing memory support and by juggling interrelated variables. Through a partnership with the computer, the user may also benefit from the effect of cognitive residue resulting in improvement or mastery of a skill or strategy. Salomon explains: The intellectual partnership with computer tools creates a zone of proximal development whereby learners are capable of carrying out tasks they could not possible carry out without the help and support provided by the computer. This partnership can both offer guidance that might be internalized to become self-guidance and stimulate the development of yet underdeveloped skills, resulting in a higher level of skill mastery (p.252).
series other
last changed 2003/04/23 13:14

_id 1c67
authors Sanchez, S., Zulueta A., and Barrallo J.
year 1999
title Bilbao: The Revitalisation of a City
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 694-699
summary The city of Bilbao has suffered in the last decade a deep transformation. After a glorious industrial past, Bilbao was in 1990 a depressed city, and the strategies necessary to transform an industrial city into a service capital were no simple due to the high level of pollution and unemployment rate. The "Bilbao Metropoli-30" Association was created to coordinate the synergetic action of all the involved institutions: City Hall, Basque Country and Spanish Governments, financial institutions, transport companies, airport and port, etc. But it was also necessary the acceptance of the public opinion to recover the illusion and the lost pride of the city. The desolated social scene was not adequate for revolutionary designs like the winding Frank Gehry's Bilbao Guggenheim Museum, or the cavernous Norman Foster's underground. This work pretends to show the means and strategies, especially computational, that allowed the transformation of Bilbao with an enthusiastic citizen support.
keywords Metropolitan Bilbao, City Revitalisation, Architectural Computer Simulation
series eCAADe
email mapbacaj@sa.ehu.es
last changed 1999/10/10 12:53

_id 86c7
authors Schallhammer, J. and Wenz, F.
year 1991
title Workshop Report: From CAD Graphics to an Art Exhibition
source Experiences with CAAD in Education and Practice [eCAADe Conference Proceedings] Munich (Germany) 17-19 October 1991
summary The results that will be outlined have been reached at the University of Munich, Faculty of Architecture, Institute for Structural Analysis of Buildings. It started in September 1990 when a group of students decided to focus on questions raised by CAD generated renderings and plots. At that point it seemed to be obvious that CAD systems were about to fundamentally change architectural representation as we know it, which relies heavily on formal, visual and aesthetic qualities, and was developed over hundreds of years. At the same time computers are creating new realities as in high-resolution realistic renderings, animation or virtual reality systems. It was necessary to explore the resulting new techniques and possibilities while applying them to architectural projects.

series eCAADe
last changed 1998/08/23 07:42

_id bcb5
authors Schrage, M.
year 1990
title Shared Minds: The New Technologies of Collaboration
source New York: Random House
summary Collaboration is a fundamental yet underappreciated force in business, the arts and sciences, stresses Schrage, columnist for the Los Angeles Times. Most organizations, he observes, lack structures that allow people to pool their talents creatively. In place of the bastardized American notion of "teamwork," he advocates genuine collaborative interaction aided by "shared spaces" like blackboards or brainstorming sessions. One chapter demonstrates how shared computer screens can reduce the politics and boredom of corporate meetings. Though he sometimes belabors the obvious, Schrage has written a trailblazing guide to help people in diverse fields move from mere communication to true collaboration.
series other
last changed 2003/04/23 13:14

_id 9f6f
authors Seebohm, Thomas
year 1990
title Deconstructing the Constructivist Drawings of Iakov Chernikhov
source From Research to Practice [ACADIA Conference Proceedings] Big Sky (Montana - USA) 4-6 October 1990, pp. 61-77
summary The three-dimensional nature of Chernikhov's Constructivist architecture can be analyzed by a method of reverse perspective deconstruction. After a review and classification of the drawings in Chernikhov's book, 101 Architectural Fantasies, to determine which classes are suitable for deconstruction, the method of perspective deconstruction together with the underlying assumptions is presented and applied to three drawings. Conclusions concerning the forms comprising the architecture depicted in Chernikhov's images and the possibility of representing this Constructivist architecture by shape grammars are discussed.
series ACADIA
email tseebohm@fes.uwaterloo.ca
last changed 2003/05/16 17:23

_id 831d
authors Seebohm, Thomas
year 1992
title Discoursing on Urban History Through Structured Typologies
source Mission - Method - Madness [ACADIA Conference Proceedings / ISBN 1-880250-01-2] 1992, pp. 157-175
summary How can urban history be studied with the aid of three-dimensional computer modeling? One way is to model known cities at various times in history, using historical records as sources of data. While such studies greatly enhance the understanding of the form and structure of specific cities at specific points in time, it is questionable whether such studies actually provide a true understanding of history. It can be argued that they do not because such studies only show a record of one of many possible courses of action at various moments in time. To gain a true understanding of urban history one has to place oneself back in historical time to consider all of the possible courses of action which were open in the light of the then current situation of the city, to act upon a possible course of action and to view the consequences in the physical form of the city. Only such an understanding of urban history can transcend the memory of the actual and hence the behavior of the possible. Moreover, only such an understanding can overcome the limitations of historical relativism, which contends that historical fact is of value only in historical context, with the realization, due to Benedetto Croce and echoed by Rudolf Bultmann, that the horizon of "'deeper understanding" lies in "'the actuality of decision"' (Seebohm and van Pelt 1990).

One cannot conduct such studies on real cities except, perhaps, as a point of departure at some specific point in time to provide an initial layout for a city knowing that future forms derived by the studies will diverge from that recorded in history. An entirely imaginary city is therefore chosen. Although the components of this city at the level of individual buildings are taken from known cities in history, this choice does not preclude alternative forms of the city. To some degree, building types are invariants and, as argued in the Appendix, so are the urban typologies into which they may be grouped. In this imaginary city students of urban history play the role of citizens or groups of citizens. As they defend their interests and make concessions, while interacting with each other in their respective roles, they determine the nature of the city as it evolves through the major periods of Western urban history in the form of threedimensional computer models.

My colleague R.J. van Pelt and I presented this approach to the study of urban history previously at ACADIA (Seebohm and van Pelt 1990). Yet we did not pay sufficient attention to the manner in which such urban models should be structured and how the efforts of the participants should be coordinated. In the following sections I therefore review what the requirements are for three-dimensional modeling to support studies in urban history as outlined both from the viewpoint of file structure of the models and other viewpoints which have bearing on this structure. Three alternative software schemes of progressively increasing complexity are then discussed with regard to their ability to satisfy these requirements. This comparative study of software alternatives and their corresponding file structures justifies the present choice of structure in relation to the simpler and better known generic alternatives which do not have the necessary flexibility for structuring the urban model. Such flexibility means, of course, that in the first instance the modeling software is more timeconsuming to learn than a simple point and click package in accord with the now established axiom that ease of learning software tools is inversely related to the functional power of the tools. (Smith 1987).

series ACADIA
email tseebohm@fes.uwaterloo.ca
last changed 2003/05/16 17:23

_id e7fa
authors Turner, James A. and Hall, Theodore W.
year 1990
title An Application of Geometric Modeling and Ray Tracing to the Visual and Acoustical Analysis of a Municipal Open-Air Auditorium
source From Research to Practice [ACADIA Conference Proceedings] Big Sky (Montana - USA) 4-6 October 1990, pp. 173-185
summary Thee APRL of The University of Michigan was recently contracted to develop geometric models of a large open-air auditorium on the Detroit River to facilitate computer aided visual and acoustical analysis. This paper is a summary of the approaches taken to construct solid and surface models of the auditorium, and to develop general software for acoustical simulation.
series ACADIA
email turner@umich.edu
last changed 2003/05/16 17:23

_id 436e
authors Warszawski, A.
year 1990
title Industrialization and robotics in building
source Harper & Row, New York
summary Textbook for undergraduate engineering and architectural students includes general information on heavy concrete-based prefabrication and on automation, computer-aided decision-making and other novel technologies being applied to building works. Many figures illustrate the text, which also includes suggested assignments.
series other
email cvrabwa@tx.technion.ac.il
last changed 2003/04/23 13:14

_id 90f7
authors Wolberg, G.
year 1990
title Digital Image Warping
source IEEE Computer Society Press
summary This best-selling, original text focuses on image reconstruction, real-time texture mapping, separable algorithms, two-pass transforms, mesh warping, and special effects. The text, containing all original material, begins with the history of the field and continues with a review of common terminology, mathematical preliminaries, and digital image acquisition. Later chapters discuss equations for spatial information, interpolation kernels, filtering problems, and fast-warping techniques based on scanline algorithms.
series journal paper
last changed 2003/04/23 13:14

_id 28c7
authors Woo, A., Poulin, P. and Fournier, A.
year 1990
title A Survey of Shadow Algorithms
source IEEE Computer Graphics and Applications. November, 1990. vol. 10: pp. 13-32 : ill. includes bibliography
summary This survey characterizes the various types of shadows. It also describes most existing shadow algorithms and discusses their complexities, advantages, and shortcomings. The authors examine hard shadows, soft shadows, shadows of transparent objects, and shadows for complex modeling primitives. For each type, they examine shadow algorithms within various rendering techniques. This survey attempts to provide readers with enough background and insight on the various methods to allow them to choose the algorithm best suited to their needs, and to help identify areas that need more research and point to possible solutions
keywords shadowing, algorithms, computer graphics
series CADline
last changed 2003/06/02 12:41

_id 8fc0
authors Hall, A.
year 1990
title Generating urban design objectives for local areas: A methodology and case study application to Chelmsford, Essex
source Town Planning Review 61(3), pp. 287-309
summary Contributed by Susan Pietsch (spietsch@arch.adelaide.edu.au)
keywords 3D City Modeling, Development Control, Design Control
series other
last changed 2001/06/04 18:27

_id maver_066
id maver_066
authors Maver, T.W.
year 1990
title Computer Applications in Landscape Design
source Proceedings of Hyogo International Landscape Conference, Kobe, Japan
series other
email t.w.maver@strath.ac.uk
last changed 2003/09/03 13:01

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