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

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

_id	a616
authors	Mallot - Hanspeter, A. and Gillner, S.
year	1998
title	Navigation and acquisition of spatial knowledge in a virtual maze
source	Journal of Cognitive Neuro-Science, 10, pp. 445-463
summary	Spatial behavior in humans and animals includes a wide variety of behavioral competences and makes use of a large number of sensory cues. Here we studied the ability of human subjects to search locations, to find shortcuts and novel paths, to estimate distances between remembered places, and to draw sketch maps of the explored environment; these competences are related to goal-independent memory of space, or cognitive maps. Information on spatial relations was restricted to two types: a visual motion sequence generated by simulated movements in a virtual maze and the subject's own movement decisions defining the path through the maze. Visual information was local (i.e., no global landmarks or compass information was provided). Other position and movement information (vestibular or proprioceptive) was excluded. The amount of visual information provided was varied over four experimental conditions. The results indicate that human subjects are able to learn a virtual maze from sequences of local views and movements. The information acquired is local, consisting of recognized positions and movement decisions associated to them. Although simple associations of this type can be shown to be present in some subjects, more complete configurational knowledge is acquired as well. The results are discussed in a view-based framework of navigation and the representation of spatial knowledge by means of a view graph.
series	journal paper
last changed	2003/04/23 15:50

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

_id	c373
authors	Baldwin, A.N., Austin, S.A., Hassan, T.M. and Thorpe, A.
year	1998
title	Planning building design by simulating information flow
source	Automation in Construction 8 (2) (1998) pp. 149-163
summary	Successful project management requires the effective control of the design teams and the exchange of information between them for successful design management. This paper describes a methodology involving discrete event simulation that can help the planning and control of building design. Discipline-based information flow models of the building design process are used to define the activities of the simulation model, concentrating on the concept and schematic design stages. Factors such as task durations and resources are then allocated along with any specific constraints that are to be evaluated. The model predicts the outcomes of the specific scenario of information related events, including design schedules and resource histograms. The paper describes the development and validation of the simulation model and discusses its potential application during the planning and design phases of building projects. It is concluded that this approach could form the basis of a useful tool for design managers responsible for multidisciplinary building design work.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	487c
authors	Blazquez, Oscar and Hardin, Mary
year	1998
title	Balancing Computer Use and Design Content in Studio Projects
source	Digital Design Studios: Do Computers Make a Difference? [ACADIA Conference Proceedings / ISBN 1-880250-07-1] Québec City (Canada) October 22-25, 1998, pp. 36-43
doi	https://doi.org/10.52842/conf.acadia.1998.036
summary	Particular design approaches must be taught in order to take advantage of the strengths of computers in design rather than attempting to make computers conform to methods developed as by-products of manual design techniques. For the last three years our team of faculty teaching the second year design studio has been trying different approaches to the use of computers in design, in order to find the advantages and opportunities especially suited to electronic media. There are several projects during the semester which use computers at different stages of the design process. One of these projects, called “A Spatial Sequence,” uses information from a previous project as well as the knowledge from the computer class in parallel to design studio. The project asked students to create spatial archetypes based on the work of well-known architects. They explore the following topics as represented in the work of one particular architect: relationships of major spaces/minor spaces, approach/entry, and transition/threshold. Following the analysis, they create digital models to explore the spaces formed by their archetypes. Before committing to a physical study model, they look at the transitions between spaces by creating a sequence using the digital model and producing a series of shots through the digital model to show the flow of spaces. The use of computer through the process accelerates the options available to explore a sequence of elements, while simultaneously giving them a window to look into the spaces they have created. This hybridized approach of precedent analysis, digital modeling, and physical modeling was uniquely suited to the studio problem.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	5477
authors	Donath, D., Kruijff, E., Regenbrecht, H., Hirschberg, U., Johnson, B., Kolarevic, B. and Wojtowicz, J.
year	1999
title	Virtual Design Studio 1998 - A Place2Wait
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 453-458
doi	https://doi.org/10.52842/conf.ecaade.1999.453
summary	This article reports on the recent, geographically and temporally distributed, intercollegiate Virtual Design Studio based on the 1998 implementation Phase(x) environment. Students participating in this workshop had to create a place to wait in the form of a folly. This design task was cut in five logical parts, called phases. Every phase had to be finished within a specific timeframe (one day), after which the results would be stored in a common data repository, an online MSQL database environment which holds besides the presentations, consisting of text, 3D models and rendered images, basic project information like the descriptions of the phases and design process visualization tools. This approach to collaborative work is better known as memetic engineering and has successfully been used in several educational programs and past Virtual Design Studios. During the workshop, students made use of a variety of tools, including modeling tools (specifically Sculptor), video-conferencing software and rendering programs. The project distinguishes itself from previous Virtual Design Studios in leaving the design task more open, thereby focusing on the design process itself. From this perspective, this paper represents both a continuation of existing reports about previous Virtual Design Studios and a specific extension by the offered focus. Specific attention will be given at how the different collaborating parties dealt with the data flow and modification, the crux within a successful effort to cooperate on a common design task.
keywords	Collaborative design, Design Process, New Media Usage, Global Networks
series	eCAADe
email
last changed	2022/06/07 07:55

_id	ee96
authors	Johnson, Scott
year	1998
title	Making Models Architectural: Protean Representations to Fit Architects’ Minds
source	Digital Design Studios: Do Computers Make a Difference? [ACADIA Conference Proceedings / ISBN 1-880250-07-1] Québec City (Canada) October 22-25, 1998, pp. 354-365
doi	https://doi.org/10.52842/conf.acadia.1998.354
summary	A rich vocabulary has evolved for describing architecture. It serves not only as a means of communication, but also as an embodiment of concepts relating to form, space, structure, function, mood, and symbolism. We architects not only speak in terms of walls, rooms, roofs, arches, etc., we see in terms of them and think in terms of them, as well. Such concepts are integral to our ability to design. Typical CAD representations, however, are based on geometric/mathematical elements like points, lines, planes, and symbols. Even more experimental approaches like parametric shapes or procedural assemblies correspond poorly to architectural elements, and seldom lend themselves well to making conceptual changes that would allow exploration of design alternatives. Small wonder some architecture schools experience a division between computer and studio courses, or even between computer and studio faculty. Different ways of talking and thinking are involved. The concepts involved are often mutually exclusive. This paper discusses an attempt to address this conceptual mismatch, using what are termed “protean” (meaning “very changeable”) elements. These are high-level elements corresponding to architectural concepts like “wall,” or “dome.” They each have parameters appropriate for the particular type of element they represent, and produce the polyhedra necessary for graphics based on these parameters. A system is being implemented to allow models to be constructed using these elements. The protean elements form a loosely structured model, in which some elements hierarchically contain others, and some elements are essentially freestanding, being created and manipulated independently of other elements. Characteristics of protean element are discussed, including the underlying object-oriented structure, the relationship between elements and graphics, and functions associated with the objects. A scheme is explained whereby all parts of a design can be represented even when the design includes extremely unusual forms not conforming to predictable classes of elements. The necessary support framework is also discussed; general flow of the system and mechanisms for viewing the model and editing subcomponents are explained. The current status of the project, and intentions for future work are discussed. The project has been partially implemented, and the necessary framework to support the system is mostly complete.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	de77
authors	Ahmad Rafi, M.E.
year	1998
title	Computer animation for architectural visualisation
source	University of Strathclyde
summary	This thesis critically reviews the state of architectural animation, and relates this specific field to the more general motion-based representations, particularly traditional film-making techniques. It identifies key elements from traditional filmmaking and shows how these elements can improve computer-based architectural animation. The process of identification of the key elements from traditional film-making starts with a critical survey of the use of motion-based representation in local architectural practices and an empirical analysis of several architectural-based documentary films and past and present computer animations. All of the key ideas are illustrated on video by comparing real shooting clips to digital sequences focusing on production and post-production works. Some of these were implemented in two live projects ( Ministry of Finance, Malaysia and Damansara Parade ) for architects to understand the real problems and potentials in each process. These sets of illustrations expand the architect ideas to make full use of the motion-based process to improve the skill of combining architectural information in a good animation. The overall production process becomes more efficient when the motion-based footage is edited using a non-linear editing platform as it enhances the professional appearance as well as vastly saving most of the production time. The thesis concludes with specific recommendations relative to the stage at which the animation is produced. This technology can be best utilised with the right skills (a gained from film-making) and an understanding of each stage that requires a different level of input and gives a certain impact to the viewers.
series	thesis:PhD
email
last changed	2003/11/21 15:15

_id	70a1
authors	Elsasa, P.A. van and Vergeesta, J.S.M.
year	1998
title	Displacement feature modelling for conceptual design
source	Computer-Aided Design, Vol. 30 (1) (1998) pp. 19-27
summary	Although the support of surface features, where a surface feature represents a local geometric detail imposed on a surface, is well-defined on prismatic objects, this is notthe case for sculptured surface models. Current methods often lead to data-explosion, high polynomial results, or procedural solutions. In this paper a method isdescribed that allows explicit modelling of protrusions and depressions in free-form B-spline surfaces. As this functionality is intended to be used by industrial designersduring conceptual design, distinct requirements are formulated to allow its use in this early stage of design. A method is described that calculates a blending geometryapproximating G1 cross-boundary smoothness effectively. Using these requirements and approximations, protrusions and depressions can be modelled with real-timeresponse, and with unprecedented flexibility.
keywords	Surface Features, Conceptual Design, Curvature Continuity Approximating, B-Spline Patches
series	journal paper
last changed	2003/05/15 21:33

_id	07d8
authors	Garza, J.M. de la and Howitt, I.
year	1998
title	Wireless communication and computing at the construction jobsite
source	Automation in Construction 7 (4) (1998) pp. 327-347
summary	For many years, the walkie-talkie has been synonymous with the construction industry. During jobsite project execution, there are three variables which can either hinder or facilitate successful results, namely, quality, quantity, and timing of information. Wireless data communications technology is capable of delivering just-in-time information within the `last mile' between the trailer and a desired location on the jobsite. This paper reports on a study which surveyed information needs at the jobsite, emerging wireless data communications technology, and assessed the extent to which wireless data technology can fulfill the information needs of the jobsite [J.M. de la Garza, I. Howitt, Wireless communication and computing at the jobsite, Research Report 136-11, Construction Industry Institute, Austin, TX, 1997]. We have organized jobsite information needs into the following ten categories: (a) requests for information, (b) materials management, (c) equipment management, (d) cost management, (e) schedule and means and methods, (f) jobsite record keeping, (g) submittals, (h) safety, (i) QC/QA, and (k) future trends. Each category was analyzed in terms of its appropriateness to take advantage of wireless technology. The four formats considered to transmit information wirelessly were: (a) live voice, (b) live video, (c) batched data, and (d) live data. Current wireless communication technology has been classified into the following five classes: (a) circuit-switched wireless data systems, (b) packet-switched wireless data systems––this class was further subdivided into specialized mobile radio systems and cellular digital packet data systems, (c) wireless local area networks, (d) paging systems, and (e) satellite-based data communications. A primer for wireless communications covering both fundamental and advanced communications concepts has also been included to enable a better understanding of the issues involved in making trade-offs while configuring a wireless jobsite communication system. The example presented in this paper shows how a contractor can define a subset of information needs by choosing from those already articulated herein and determine if a given wireless technology should even be considered as a viable way of meeting the information needs that such company has.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	ddss9828
id	ddss9828
authors	Holmberg, Stig C.
year	1998
title	Anticipation in Evaluation and Assessment of Urban and Regional Plans
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	In order to start a move toward better computer based supporting tools for the assessment of urban and regional plans, a new research and development endeavour is proposed. In so doing, anticipation andanticipatory computing, i.e. a technique applying modelling and simulation, is found to be an interesting and promising point of departure. Hence, a fuzzy cellular automata computer model (STF) for simulation and anticipation of geographical or physical space is constructed. The main idea is to map anurban plan onto the STF for its assessing. STF has a normalised and continuous, i.e. fuzzy, system variable while both the time and space dimensions take on discrete values. Further, while ordinary cellularautomata use local rules, global ones are employed in STF, i.e. there is a total interdependence among all the cells of the automata. Outcomes of STF can be interpreted more as possible future states than exact predictions. Preliminary results seem to be well in line with main characteristics of planned urban or regional geographical spaces. Further, for the managing of multi-criteria choice situations, a fuzzy procedure – the Ordered Weighted Average (OWA) procedure – with continuous control over the degree of ANDOR-ness and with independent control over the degree of tradeoff, is proposed.
keywords	Geographical space, Anticipatory Computing, Cellular Automata, Spatio Temporal Fuzzy Model (STF)
series	DDSS
last changed	2003/08/07 16:36

_id	0272
authors	Kokosalakis, Jen
year	1998
title	Remote File Sharing for Community-led Local Agenda 21 Sustainability with Internet, Intranets and VideoConferencing
source	Computerised Craftsmanship [eCAADe Conference Proceedings] Paris (France) 24-26 September 1998, pp. 116-122
doi	https://doi.org/10.52842/conf.ecaade.1998.116
summary	This paper considers new opportunities for ease of remote file sharing through the Internet, Intranets and VideoConferencing, as facilitating opportunities for informed consumer intervention and greater accountability of the design. A remote file sharing experiment, [through a VideoConference link], of a 3D CAD estate model, collaboratively developed with a local resident?s association, is discussed. A different example looks at use of the Internet route by a small practice in the North West, developing QuickTime and QuickTimeVirtual Reality files for remote distribution and collaboration. The value of the full building object-orientated, data based model, [incorporating all related data and decisions from conception, client participation, project and facilities and life time management], is seen to offer an excellent vehicle for illustrating, negotiating and recording decisions. New international CAD standards for remote transfer and file sharing bring ease of use into the arena. Associated peripherals for remote file sharing through both Internet and video/teleconferencing, point to a transformation in the way we collaborate in the future. Signs from a broad band of businesses indicate that there is a clear understanding [in some circles] of the potential and the specific orientation of Web targeting, people-networking and dialogue. The key change is that those who understand this, build on the particular opportunity to contact and relate with any community of interest and to develop dialogue in a deeper, closer manner. So, we can see a strange phenomenon that the remoteness can actually bring a closeness of a new kind, as communities explore common interests. The paper considers how this may be the key to involving thousands of residents in a well-recorded dialogue, so bringing improved opportunities for meeting European standards in public accountability and community involvement in the development of Local Agenda 21 sustainability strategies.
series	eCAADe
email
more	http://www.paris-valdemarne.archi.fr/archive/ecaade98/html/39kokosalakis/index.htm
last changed	2022/06/07 07:51

_id	6df0
authors	Komatsu, Kiichiro and Watanabe, Shun
year	1998
title	Spatial Database for Model Analysis Methods
source	CAADRIA ‘98 [Proceedings of The Third Conference on Computer Aided Architectural Design Research in Asia / ISBN 4-907662-009] Osaka (Japan) 22-24 April 1998, pp. 203-212
doi	https://doi.org/10.52842/conf.caadria.1998.203
summary	In the field of architectural and urban planning and design, computer education needs to move beyond basic computer literacy and have more emphasis placed on special subjects related to planning and design. How to manage spatial data is becoming an essential issue for research and education in planning and design especially in the analysis and evaluation phases. This paper discusses the importance of spatial data in planning education and shows how a common spatial database for model analysis methods was constructed at the University of Tsukuba. The database consists of many geographical and statistical data files classified under the standard region mesh codes and covers the whole country from global areas to local areas. Web-based instructions about how to use the database have also been prepared which enable students to study practical spatial analysis by themselves.
keywords	Education, Database, GIS, Spatial Analysis
series	CAADRIA
email
more	http://www.caadria.org
last changed	2022/06/07 07:51

_id	170f
authors	Mora Padrón, Víctor Manuel
year	1999
title	Integration and Application of Technologies CAD in a Regional Reality - Methodological and Formative Experience in Industrial Design and Products Development
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 295-297
summary	The experience to present is begun and developed during the academic year 1998, together to the course of IV pupils level of the Industrial Design career in the Universidad del Bío-Bío, labor that I have continued assuming during the present year, with a new youths generation. We have accomplished our academic work taking as original of study and base, the industrial and economic situation of the VIII Region, context in the one which we outline and we commit our needs formative as well as methodological to the teaching of the discipline of the Industrial Design. Consequently, we have defined a high-priority factor among pupils and teachers to reach the objectives and activities program of the course, the one which envisages first of all a commitment of attitude and integrative reflection among our academic activity and the territorial human context in the one which we inhabit. In Chile the activity of the industrial designer, his knowledge and by so much his capacity of producing innovation, it has been something practically unknown in the industrial productive area. However, the current national development challenges and the search by widening our markets, they have created and established a conscience of the fact that the Chilean industrial product must have a modern and effective competitiveness if wants be made participates in segments of the international marketing. It is in this new vision where the design provides in decisive form to consider and add a commercial and cultural value in our products. To the university corresponds the role of transmitting the knowledge generated in his classrooms toward the society, for thus to promote a development in the widest sense of the word. Under this prism the small and median regional industry in their various areas, have not integrated in the national arrangement in what concerns to the design and development of new and integral products. The design and the innovation as motor concept for a competitiveness and permanency in new markets, it has not entered yet in the entrepreneurial culture. If we want to save this situation, it is necessary that the regional entrepreneur knows the importance of the Design with new models development and examples of application, through concrete cases and with demands, that serve of base to demonstrate that the alliance among Designer and Industry, opens new perspectives of growth upon offering innovation and value added factors as new competitiveness tools. Today the communication and the managing of the information is a strategic weapon, to the moment of making changes in a social dynamics, so much at local level as global. It is with this look that our efforts and objective are centered in forming to our pupils with an integration speech and direct application toward the industrial community of our region, using the communication and the technological information as a tool validates and effective to solve the receipt in the visualization of our projects, designs and solutions of products. As complement to the development of the proposed topic will be exhibited a series of projects accomplished by the pupils for some regional industries, in which the three dimensional modeling and the use of programs vectoriales demonstrate the efficiency of communication and comprehension of the proposals, its complexity and constructive possibilities.
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	2557
authors	Reisig, W.
year	1998
title	Elements of Distributed Algorithms: Modeling and Analysis with Petri Nets
source	Springer Verlag, Berlin
summary	A variety of distributed algorithms are presented and proven correct in this book. A (Petri net based) technique to model and to analyze distributed algorithms is coincidently presented. This technique focusses on local states, independent actions, and synchronization of distributed threads of control. This book's scope is modest, as it sticks to a choice of small and medium size distributed algorithms. Compositionality, stepwise refinement, interface specification, abstraction, etc., are not covered. Nevertheless, this book's claims are ambitious: Just as PASCAL-like programming structures and Hoare-style proof techniques appear optimal for a wide class of sequential algorithms, this book's formalism is suggested to be optimal for a wide class of distributed algorithms. Particular preliminary knowledge is not assumed in this text, besides basics in formal concepts and a general intuitive understanding of computer science. The text provides a basis for university courses and can help the practitioner to design distributed algorithms. The hurried reader may just study the pictures.
series	other
last changed	2003/04/23 15:14

_id	ddss9846
id	ddss9846
authors	Rigatti, Decio
year	1998
title	Rubem Berta Housing Estate: Order and Structure, Designand Use
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	The main goal of this paper is to investigate, through some space configurational based tools, a quite common phenomenon found in many different locations in Brazil, concerning the process of urban changes individually introduced by dwellers of public housing estates. A significant number of housing estates, particularly those designed according to rationalist concepts, seem to be unable to support space related social requirements and are then widely transformed when compared to the original layouts. Beyond the quantitative features, the morphological changes that take place in those housing estates mean a fundamental new approach to understand how completely new urban structures can arisefrom the space produced by a comprehensive urban design, took as a starting point for the transformations made by the dwellers of those settlements. As a case study is analysed the Rubem Berta Housing Estate which was built in Porto Alegre/RS, Brazil, for 20,000 people in the late 70’s. Since the begining of its occupation in 1986 and the invasion that took place in 1987, the urban transformations there have never stopped. It’s possible to realize that the dwellers individually use some constant physical rules to define the new settlement which are very similar within the estate itself and, at the same time, very similar to those found in other transformed housing estates of this sort. The physical rules introduced change the features of the entire settlement in two different levels: a) locally, through the transformations introduced in order to solve individual needs; b) globally, the local rules of physical transformations produce a new overall structure for the whole urban complex. The knowledge of this process makes it possible to bring to the surface of architectural theory some generic configurational codes that can be used as a tool for designing public housing estates in Brazil.
series	DDSS
last changed	2003/08/07 16:36

_id	6311
authors	Rychter, Zenon
year	1998
title	Event Driven Turtle as Pattern Generator
source	Cyber-Real Design [Conference Proceedings / ISBN 83-905377-2-9] Bialystock (Poland), 23-25 April 1998, pp. 163-176
summary	Computer programming is a powerful exploratory design tool. A simple algorithm can produce results of unexpected complexity, variety, and appeal. By mimicking evolution in nature, rich global states are gradually developed over time by iteration of elementary local rules. Fractal images and life-game simulations are two well known examples. This paper presents a pattern-generating application based on the walking turtle metaphor. The turtle has an intelligence of its own, can be randomly disturbed or directed interactively by the user. Several snapshots are shown of amazingly diverse patterns left by the turtle walking in various modes. Advantages of object-oriented visual programming environments for rapid application development are discussed.
series	plCAD
last changed	1999/04/08 17:16

_id	ddss9855
id	ddss9855
authors	Spinelli, Juçara and Krafta, Romulo
year	1998
title	Urban Land Value Distribution UnderConfigurational Scrutiny
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	In the present study were evaluated land parceling problems under aspects of spatial configuration related to land value (lv). Paradoxical cases occur in urban spaces, such as low spatial differentiation and high lv, or vice-versa. Determined urban areas are identified as having high centrality, with intense land use and occupation, and, therefore, high market value. Conversely, other urban areas are identified as having low centrality value, certain degradation, or lack of infrastructure and urban equipment, and, consequently, low lv. Empirical studies have proved satisfactory results interms of the correlation between measures of configuration and lv. These studies verify the convenience of the models used to describe significant aspects of spatial differentiation. The complementation of the methodological proposal is identified, and other components of urban space are calculated (plot dimension, infrastructure, normative aspects, etc.). These are determinant measures that characterize the local factor associated with measures that determine the morphological differentiation.This differentiation demonstrated that land value distribution, besides following centrality, depends, in greater or lesser extent, on the local factor. The results obtained, through a model that combines measures of centrality with local characteristics, approached reality because the model incorporated a greater number of variables which allowed the verification of correlated socioeconomic and spatial matters related to parceling, value, and configuration.
series	DDSS
email
last changed	2003/08/07 16:36

_id	5cab
authors	Jain, A., Kensek, K. and Noble, D.
year	1998
title	An interactive Web-based teaching tool for simplified 3D analysis of solar rhythms
source	Automation in Construction 8 (2) (1998) pp. 181-194
summary	This case study presents the World Wide Web as an appropriate medium for architectural teaching. The prototypical tool VRSolar uses simple programming and existing Web resources to help in the teaching of topics related to the movement of the sun and its effects on the built environment. Using JavaScript, this tool is capable of generating real time Web content in html and VRML based on user input. Accessible on the Web from within a standard Web browser, this tool calculates the solar positions of any location on earth and indicates the solar access to a given site in the form of a three-dimensional Web page, which the user can view, navigate through, and animate.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

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