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	ecaade2016_113
id	ecaade2016_113
authors	Poinet, Paul, Baharlou, Ehsan, Schwinn, Tobias and Menges, Achim
year	2016
title	Adaptive Pneumatic Shell Structures - Feedback-driven robotic stiffening of inflated extensible membranes and further rigidification for architectural applications
doi	https://doi.org/10.52842/conf.ecaade.2016.1.549
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 549-558
summary	The paper presents the development of a design framework that aims to reduce the complexity of designing and fabricating free-form inflatables structures, which often results in the generation of very complex geometries. In previous research the form-finding potential of actuated and constrained inflatable membranes has already been investigated however without a focus on fabrication (Otto 1979). Consequently, in established design-to-fabrication approaches, complex geometry is typically post-rationalized into smaller parts and are finally fabricated through methods, which need to take into account cutting pattern strategies and material constraints. The design framework developed and presented in this paper aims to transform a complex design process (that always requires further post-rationalization) into a more integrated one that simultaneously unfolds in a physical and digital environment - hence the term cyber-physical (Menges 2015). At a full scale, a flexible material (extensible membrane, e.g. latex) is actuated through inflation and modulated through additive stiffening processes, before being completely rigidified with glass fibers and working as a thin-shell under compression.
wos	WOS:000402063700060
keywords	pneumatic systems; robotic fabrication; feedback strategy; cyber-physical; scanning processes
series	eCAADe
email
last changed	2022/06/07 08:00

_id	cebc
authors	Rhodes, Michael L.
year	1979
title	An Algorithmic Approach to Controlling Search in Three-Dimensional Image Data
source	SIGGRAPH '79 Conference Proceedings. August, 1979. vol. 13 ; no. 2: pp. 134- 141 : ill. includes bibliography
summary	In many three-dimensional imaging applications random shaped objects, reconstructed from serial sections, are isolated to display their overall structure in a single view. This paper presents an algorithm to control an ordered search strategy for locating all contours of random shaped objects intersected by a series of cross-section image planes. Classic search techniques in AI problem solving and software for image processing and computer graphics are combined here to aid program initialization and automate the search process thereafter. Using three-dimensional region growing, this method isolates all spatially connected pixels forming a structure's volume and enters image planes the least number of times to do so. An algorithmic description is given to generalize the process for controlling search in 3-D image data where little core memory is available. Phantom and medical computer tomographic data are used to illustrate the algorithm's performance
keywords	algorithms, AI, image processing, computer graphics, methods, search
series	CADline
last changed	2003/06/02 10:24

_id	98bd
authors	Pea, R.
year	1993
title	Practices of Distributed Intelligence and Designs for Education
source	Distributed Cognitions, edited by G. Salomon. New York, NY: CambridgeUniversity Press
summary	v Knowledge is commonly socially constructed, through collaborative efforts... v Intelligence may also be distributed for use in designed artifacts as diverse as physical tools, representations such as diagrams, and computer-user interfaces to complex tasks. v Leont'ev 1978 for activity theory that argues forcibly for the centrality of people-in-action, activity systems, as units of analysis for deepening our understanding of thinking. v Intelligence is distributed: the resources that shape and enable activity are distributed across people, environments, and situations. v Intelligence is accomplished rather than possessed. v Affordance refers to the perceived and actual properties of a thing, primarily those functional properties that determine how the thing could possibly be used. v Norman 1988 on design and psychology - the psychology of everyday things" v We deploy effort-saving strategies in recognition of their cognitive economy and diminished opportunity for error. v The affordances of artifacts may be more or less difficult to convey to novice users of these artifacts in the activities to which they contribute distributed intelligence. v Starts with Norman's seven stages of action Ø Forming a goal; an intention § Task desire - clear goal and intention - an action and a means § Mapping desire - unable to map goal back to action § Circumstantial desire - no specific goal or intention - opportunistic approach to potential new goal § Habitual desire - familiar course of action - rapidly cycle all seven stages of action v Differentiates inscriptional systems from representational or symbol systems because inscriptional systems are completely external, while representational or symbol systems have been used in cognitive science as mental constructs. v The situated properties of everyday cognition are highly inventive in exploiting features of the physical and social situation as resources for performing a task, thereby avoiding the need for mental symbol manipulations unless they are required by that task. v Explicit recognition of the intelligence represented and representable in design, specifically in designed artifacts that play important roles in human activities. v Once intelligence is designed into the affordances properties of artifacts, it both guides and constrains the likely contributions of that artifact to distributed intelligence in activity. v Culturally valued designs for distributed intelligence will change over time, especially as new technology becomes associated with a task domain. v If we treat distributed intelligence in action as the scientific unit of analysis for research and theory on learning and reasoning... Ø What is distributed? Ø What constraints govern the dynamics of such distributions in different time scales? Ø Through what reconfigurations of distributed intelligence might the performance of an activity system improve over time? v Intelligence is manifest in activity and distributed in nature. v Intelligent activities ...in the real world... are often collaborative, depend on resources beyond an individual's long-term memory, and require the use of information-handling tools... v Wartofsky 1979 - the artifact is to cultural evolution what the gene is to biological evolution - the vehicle of information across generations. v Systems of activity - involving persons, environment, tools - become the locus of developmental investigation. v Disagrees with Salomon et al.'s entity-oriented approach - a language of containers holding things. v Human cognition aspires to efficiency in distributing intelligence - across individuals, environment, external symbolic representations, tools, and artifacts - as a means of coping with the complexity of activities we often cal "mental." "
series	other
last changed	2003/04/23 15:14

_id	00f3
authors	Baybars, Ilker and Eastman, Charles M.
year	1979
title	Generating the Underlying Graphs for Architectural Arrangements
source	10 p. : ill. Pittsburgh: School of Urban and Public Affairs, Carnegie Mellon University, April, 1979. Research report No.79. Includes bibliography
summary	The mathematical correspondence to a floorplan is a Metric Planar Graph. Several methods for systematic direct generation of metric planar graphs have been developed including polyominoes, March and Matela and shape grammars. Another approach has been to develop a spatial composition in two separate steps. The first step involves discrete variables, and consists of enumerating a defined set of non-metric planar graphs. The second step involves spatial dimensions, e.g. continuous variables, and maps the graphs onto the Euclidean plane, from which a satisfactory or optimal one is selected. This paper focusses on the latter 2-step process. It presents a general method of solving the first step, that is the exhaustive enumeration of a set of planar graphs. The paper consists of three sections: The first section is an introduction to graph theory. The second section presents the generation of maximal planar graphs. The last section summarizes the presentation and comments on the appropriateness of the method
keywords	graphs, floor plans, architecture, design, automation, space allocation
series	CADline
email
last changed	2003/05/17 10:15

_id	6b93
authors	Faux, I. D. and Pratt, M.J.
year	1979
title	Computational Geometry for Design and Manufacture
source	331 p. : ill Chichester, England: Ellis Horwood Limited., 1979. includes bibliography: p. 315-326 and index -- (Mathematics & and its Applications series)
summary	Focusing on the mathematical techniques for the representation, analysis and synthesis of 'shape information' by computers. There is a discussion of splines and related means for defining composite curves and 'patched' surfaces, and coverage of both parametric and non-parametric techniques. The book is primarily concerned with the mathematics of the various methods. A good introductory text to surface modeling
keywords	computational geometry, curves, curved surfaces, mathematics
series	CADline
last changed	2003/06/02 13:58

_id	c3b5
authors	Hinds, John K. and Kuan, L.P.
year	1979
title	Sculptured Surface Technology as a Unified Approach to Geometric Definition
source	CASA - The Computer and Automated System Association of SME. 23 p. : ill Dearborn: SME, 1979. MS79-146. includes bibliography.
summary	The purpose of this paper is to describe a comprehensive approach to representing and machining complex surface shapes in an APT programming system. The APT (Automatically Programmed Tools) user language was extended to permit the definition of a hierarchy of curves and surfaces. Much of the logic has been implemented using matrix canonical forms which are closed under the full family of projective transformations, permitting family of parts storage and retrieval and part compensation. The area of numerical control machining was addressed, but the solutions for tool positioning were only partially successful due to the complexity of the algorithmic problem. This paper first outlines some of the mathematical methods adopted and then illustrates how these have been implemented with an APT part programming example
keywords	curved surfaces, representation, geometric modeling, mechanical engineering, CAM
series	CADline
last changed	2003/06/02 13:58

_id	0b63
authors	Ledgard, H.F., Hueras, J.F. and Nagin, P.A.
year	1979
title	Pascal with Style : Programming Proverbs
source	210 p. : ill. Rochelle Park, New Jersey: Hayden Book Company, Inc., 1979. include bibliography: p. 205-206 and index. -- (Hayden computer programming series)
summary	For PASCAL programmers, it offers short rules and guidelines for writing more accurate, error free programs. Includes many sample of PASCAL programs, introduces superior methods of program design and construction, like how to use the top-down approach
keywords	PASCAL, languages, programming, education
series	CADline
last changed	2003/06/02 14:41

_id	4ec4
authors	Rosenthal, David S.H., Stone, David and Bijl, Aart
year	1979
title	Integrated CAAD Systems
source	Edinburgh: March, 1979. [17] p. includes bibliography
summary	A study of the fundamental design considerations underlying CAAD systems is presented. Although this study does not concentrate on specific computing applications, nor on the problem of implementing applications in specific design offices, it does present insights into computing systems which should be of interest to architects, and provides a basis for informed judgements on the future of CAAD
keywords	CAD, architecture, design, methods, integration, systems
series	CADline
last changed	2003/06/02 13:58

_id	7e54
authors	Ömer, Akin
year	1979
title	Models of Architectural Knowledge - An Information Processing Model of Design
source	Carnegie Mellon University, College of Fine Arts, Pittsburgh
summary	Throughout the history of art the position of the artist towards his goals and his product has been constantly redefined. The two opposing views in the above quotation, those of . German Romanticism and Classicism, are typical of the temperamental nature of the state of the art. Today's artist uses intuition as well as reason in his creative work. Similarly, whether we consider the architect an artist or a scientist, he is constantly required to use his intellectal as well as emotional resources while designing. I do not intend to endorse an attitude for the architect which condones only one of those sources at the expense of the other. Today there i s a real opportunity for understanding the reasoning used in problem-solving and applying these to the area of architectural design, the opportunity arises due to a large amount of knowledge accumulated in the area of ' human problem-solving, methods of anlayzing and developing models for human problem solving behavior. The most frequently refered points of departure in this area are Simon's pioneering work in the area of decision-making (1944) and Newell, Shaw and Simon's work on "heuristics" (1957).
series	thesis:PhD
email
last changed	2003/02/12 22:39

_id	22ce
authors	Cahn, Deborah U., Johnston, Nancy E. and Johnston, William E.
year	1977
title	A Response to the 1977 GSPC Core Graphic System
source	SIGGRAPH '79 Conference Proceedings. August, 1979. vol. 13 ; no. 2: pp. 57-62. includes bibliography
summary	This paper responds to the 1977 Core Graphics System of SIGGRAPH's Graphics Standards Planning Committee (GSPC). The authors are interested in low-level device-independent graphics for applications doing data representation and annotation. The level structure and bias in the core system toward display list processor graphics are criticized. Specific issues discussed include display contexts, attributes, current position, 3-dimensional graphics, area filling, and graphics input
keywords	computer graphics, standards
series	CADline
last changed	2003/06/02 13:58

_id	eb8e
authors	Fowler, Robert J. and Little, James J.
year	1979
title	Automatic Extraction of Irregular Network Digital Terrain Models
source	SIGGRAPH '79 Conference Proceedings. August, 1979. vol. 13 ; no. 2: pp. 199- 207 : ill. includes bibliography
summary	For representation of terrain, an efficient alternative to dense grids is the Triangulated Irregular Network (TIN), which represents a surface as a set of non-overlapping contiguous triangular facets, of irregular size and shape. The source of digital terrain data is increasingly dense raster models produced by automated orthophoto machines or by direct sensors such as synthetic aperture radar. A method is described for automatically extracting a TIN model from dense raster data. An initial approximation is constructed by automatically triangulating a set of feature points derived from the raster model. The method works by local incremental refinement of this model by the addition of new points until a uniform approximation of specified tolerance is obtained. Empirical results show that substantial savings in storage can be obtained
keywords	GIS, mapping, computational geometry, data structures, mapping, representation, computer graphics, triangulation
series	CADline
last changed	2003/06/02 13:58

_id	8e4d
authors	Hartley, P.J. and Judd, C.J.
year	1979
title	Curve and Surface Representations for Bezier B-spline Systems
source	1979? pp. 226- 236 : ill. includes bibliography
summary	The Bezier approach to the computer-aided design of surfaces, using interactive design of curves to construct surface sections, can be implemented using spline curves just as well as the original polynomial curves, and with some advantages. In the paper, some problems are considered that arise when a Bezier system is formulated and describe possible solutions for a spline-based system
keywords	curves, representation, CAD, curved surfaces, B-splines, Bezier,
series	CADline
last changed	2003/06/02 13:58

_id	ddss9503
id	ddss9503
authors	Wineman, Jean and Serrato, Margaret
year	1994
title	Visual and Spatial Analysis in Office Design
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	The demands for rapid response to complex problems, flexibility, and other characteristics of today's workplace, such as a highly trained work force, have led many organizations to move from strict hierarchical structures to a more flexible project team organization. The organizational structure is broader and flatter, with greater independence given to organizational units, in this case the project teams. To understand the relationship between project team communication patterns and the design and layout of team space, a study was conducted of an architectural office before and after a move to new space. The study involved three project teams. Information was collected on individual communication patterns; perceptions of the ease of communication; and the effectiveness of the design and layout of physical space to support these communications. In order to provide guidance for critical decision-making in design, these communication data were correlated with a series of measures for the specification of team space enclosure and layout. These group/team space measures were adaptations of existing measures of individual work space, and included an enclosure measure, based on an enclosure measure developed by Stokols (1990); a measure of visual field, based on the "isovist" fields of Benedikt (1979); and an "integration" measure, based on the work of Hillier and Hanson (1984). Results indicate both linear and non-linear relationships between interaction patterns and physical space measures. This work is the initial stage of a research program to define a set of specific physical measures to guide the design of supportive work space for project teams and work groups within various types of organizations.
series	DDSS
email
last changed	2003/08/07 16:36

_id	a745
authors	Yessios, Chris I.
year	1979
title	Computer Drafting of Stones, Wood, Plant and Ground Materials
source	SIGGRAPH '79 Conference Proceedings August, 1979. pp. 190-198 : ill. includes bibliography.
summary	Architectural presentations drawings frequently require the drafting of stones, wood patterns, plants and ground materials which, contrary to the majority of drafting tasks, cannot rely on repetitious procedures. This paper discusses and illustrates computer implemented algorithms which generate graphic representations of the above materials
keywords	architecture, drafting, computer graphics, rendering
series	CADline
last changed	2003/06/02 13:58

_id	60d4
authors	Baer, A., Eastman, C.M. and Henrion, M.
year	1979
title	Geometric Modeling : a Survey
source	business Press. September, 1979. vol. 11: pp. 253-271 : ill. includes bibliography
summary	Computer programs are being developed to aid the design of physical systems ranging from individual mechanical parts to entire buildings or ships. These efforts highlight the importance of computer models of three dimensional objects. Issues and alternatives in geometric modeling are discussed and illustrated with comparisons of 11 existing modelling systems, in particular coherently-structured models of polyhedral solids where the faces may be either planar or curved. Four categories of representation are distinguished: data representations that store full, explicit shape information; definition languages with which the user can enter description of shapes into the system, and which can constitute procedural representations; special subsets of the information produced by application programs; and conceptual models that define the logical structure of the dada representation and/or definition language
keywords	solid modeling, B-rep, CSG, languages, CAD, programming, data structures, boolean operations, polyhedra
series	CADline
email
last changed	2003/05/17 10:15

_id	caadria2018_033
id	caadria2018_033
authors	Bai, Nan and Huang, Weixin
year	2018
title	Quantitative Analysis on Architects Using Culturomics - Pattern Study of Prizker Winners Based on Google N-gram Data
doi	https://doi.org/10.52842/conf.caadria.2018.2.257
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 2, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 257-266
summary	Quantitative studies using the corpus Google Ngram, namely Culturomics, have been analyzing the implicit patterns of culture changes. Being the top-standard prize in the field of Architecture since 1979, the Pritzker Prize has been increasingly diversified in the recent years. This study intends to reveal the implicit pattern of Pritzker Winners using the method of Culturomics, based on the corpus of Google Ngram to reveal the relationship of the sign of their fame and the fact of prize-winning. 48 architects including 32 awarded and 16 promising are analyzed in the printed corpus of English language between 1900 and 2008. Multiple regression models and multiple imputation methods are used during the data processing. Self-Organizing Map is used to define clusters among the awarded and promising architects. Six main clusters are detected, forming a 3×2 network of fame patterns. Most promising architects can be told from the clustering, according to their similarity to the more typical prize winners. The method of Culturomics could expand the sight of architecture study, giving more possibilities to reveal the implicit patterns of the existing empirical world.
keywords	Culturomics; Google Ngram; Pritzker Prize; Fame Pattern; Self-Organizing Map
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	f36d
authors	Maver, T.W.
year	1979
title	The Concept of Modelling in Architectural Design
source	Design Methods and Theories, vol Vol 13, No 3, 173-177
series	other
email
last changed	2003/06/02 15:00

_id	ddss9201
id	ddss9201
authors	Van Bakel, A.P.M.
year	1993
title	Personality assessment in regard to design strategies
source	Timmermans, Harry (Ed.), Design and Decision Support Systems in Architecture (Proceedings of a conference held in Mierlo, the Netherlands in July 1992), ISBN 0-7923-2444-7
summary	This paper discusses some preliminary results of several knowledge-acquisition and documentation-structuring techniques that were used to assess the working styles of architects. The focus of this assessment was on their strategic design behaviour. Hettema's Interactive Personality Model (Hettema 1979, 1989) was used to explain and interpret these results. The methods used to acquire the necessary data are protocol analysis, card sorting and interviews. The results suggest that at least three parameters can be used to explain and differentiate the strategic design behaviour of architects. These parameters are S (site-oriented), B (brief-oriented) and C (concept-oriented). A priority hierarchy of these parameters reveals six major distinguishable working styles. These results are captured in a new design model that can be used in data bank implementations.
series	DDSS
last changed	2003/08/07 16:36

_id	fcd6
authors	Berger, S.R.
year	1979
title	Artificial Intelligence and its impact on Coimputer-Aided Design
source	Design Studies, vol 1, no. 3
summary	This paper provides, for readers unfamiliar with the field, an introductory account of research which has been carried out in artificial intelligence. It attempts to distingussh between an artificial intelligence and a conventional computing approach and to assess the future influence of the former on computer-aided design.
series	journal paper
last changed	2003/04/23 15:14

_id	af53
authors	Boyer, E. and Mitgang, L.
year	1996
title	Building community: a new future for architecture education and practice
source	Carnegie Foundation for the Advancement of Teaching
summary	Internships, before and after graduation, are the most essential link connecting students to the world of practice. Yet, by all accounts, internship is perhaps the most troubled phase of the continuing education of architects. During this century, as architectural knowledge grew more complex, the apprenticeship system withered away and schools assumed much of the responsibility for preparing architects for practice. However, schools cannot do the whole job. It is widely acknowledged that certain kinds of technical and practical knowledge are best learned in the workplace itself, under the guidance of experienced professionals. All state accrediting boards require a minimum period of internship-usually about three years-before a person is eligible to take the licensing exam. The National Council of Architectural Registration Boards (NCARB) allows students to earn up to two years of work credit prior to acquisition of an accredited degree. The Intern Development Program (IDP), launched by NCARB and the American Institute of Architects in 1979, provides the framework for internship in some forty states. The program was designed to assure that interns receive adequate mentoring, that experiences are well-documented, and that employers and interns allocate enough time to a range of educational and vocational experiences to prepare students for eventual licensure. As the IDP Guidelines state, "The shift from school to office is not a transition from theory to pragmatism. It is a period when theory merges with pragmatism.... It's a time when you: apply your formal education to the daily realities of architectural practice; acquire comprehensive experience in basic practice areas; explore specialized areas of practice; develop professional judgment; continue your formal education in architecture; and refine your career goals." Whatever its accomplishments, however, we found broad consensus that the Intern Development Program has not, by itself, solved the problems of internship. Though we found mutually satisfying internship programs at several of the firms we visited or heard about around the country, at many others interns told us they were not receiving the continuing education and experience they needed. The truth is that architecture has serious, unsolved problems compared with other fields when it comes to supplying on-the-job learning experiences to induct students into the profession on a massive scale. Medicine has teaching hospitals. Beginning teachers work in actual classrooms, supported by school taxes. Law offices are, for the most part, in a better financial position to support young lawyers and pay them living wages. The architecture profession, by contrast, must support a required system of internship prior to licensure in an industry that has neither the financial resources of law or medicine, the stability and public support of teaching, nor a network of locations like hospitals or schools where education and practice can be seamlessly connected. And many employers acknowledged those problems. "The profession has all but undermined the traditional relationship between the profession and the academy," said Neil Frankel, FAIA, executive vice president of Perkins & Will, a multinational firm with offices in New York, Chicago, Washington, and London. "Historically, until the advent of the computer, the profession said, 'Okay, go to school, then we in the profession will teach you what the real world is like.' With the coming of the computer, the profession needed a skill that students had, and has left behind the other responsibilities." One intern told us she had been stuck for months doing relatively menial tasks such as toilet elevations. Another intern at a medium-sized firm told us he had been working sixty to seventy hours per week for a year and a half. "Then my wife had a baby and I 'slacked off' to fifty hours. The partner called me in and I got called on the carpet for not working hard enough." "The whole process of internship is being outmoded by economics," one frustrated intern told us. "There's not the time or the money. There's no conception of people being groomed for careers. The younger staff are chosen for their value as productive workers." "We just don't have the best structure here to use an intern's abilities to their best," said a Mississippi architect. "The people who come out of school are really problems. I lost patience with one intern who was demanding that I switch him to another section so that he could learn what he needed for his IDP. I told him, 'It's not my job to teach you. You are here to produce.'" What steps might help students gain more satisfying work opportunities, both during and after graduation?
series	other
last changed	2003/04/23 15:14

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