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	4f07
authors	Leach, Edmund
year	1976
title	Culture and Communication. The logic by which symbols are connected
source	Cambridge University Press. London
summary	The recent spread of 'structuralist' writing has been hailed as the dawn of a new age and condemned as an intellectual disaster but, like all fashionable diseases, it is more talked about than understood. Edmund Leach's new book is designed for the use if teaching undergraduates in anthropology, linguistics, literary studies, philosophy and related disciplines faced for the first time with structuralist argument; it provides the prolegomena necessary to understand the final chapter of Levi-Strauss's massive four-volume Mythologiques. The objective is complex, the manner simple. Some prior knowledge of anthropological literature is useful but not essential; the principal ethnographic source is the Book of Leviticus; this guide should help anyone who is trying to grasp the essentials of 'seminology' - the general theory of how signs and symbols come to convey meaning.Although, in essence, a textbook, substantial portions of the argument are here presented for the first time; thus Section 16 contains an innovating contribution to general incest theory, and the analysis of the logic of animal sacrifice presented in Section 18 is an advance on anything previous published on this theme. The author's core thesis is that: 'the indices in non-verbal communication systems, like the sound elements in spoken language, do not have meaning as isolates, but only as members of set'; the book's special merit is that it makes this kind of jargon comprehensible in terms of our everyday experience.
series	other
last changed	2003/04/23 15:14

_id	c7e0
id	c7e0
authors	Maria Gabriela Caffarena Celani
year	2002
title	BEYOND ANALYSIS AND REPRESENTATION IN CAD: A NEW COMPUTATIONAL APPROACH TO DESIGN EDUCATION
source	Submitted to the Department of Architecture in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the field of Architecture: Design & Computation at the Massachusetts Institute of Technology
summary	This thesis aims at changing students' attitude towards the use of computer-aided design (CAD) in architecture. It starts from the premise that CAD is used mostly for analysis and representation, and not as a real design aide, and that architecture students have a bias against learning computer programming. For this purpose, a prototypical instruction system that mixes computer-aided design and computational design theory was developed, based on a series of fundamental concepts that are common to both fields. This system was influenced by Mitchell's (1987) The Art of Computer Graphics Programming and Stiny's (1976) shape grammars. Despite being based on solid theoretical foundations, CAD has progressively become an exclusively practical tool, since its origins in the 50's and 60's, while computational design theories have been mostly restricted to the academic circles. This thesis proposes an inversion in the present situation: the study of CAD theory, and the application of computational design into practice. The system proposed provides a conceptual framework that can be adapted to different circumstances, including course formats and resources, as well as students' background and technical training. It is based on seven fundamental concepts from computational design theories that are also important to the study of shape grammars: symmetry, recursion, rule-based compositions, parameterization of shapes, generative systems, algorithmization of design procedures, and shape emergence. These concepts are introduced within a CAD context, where their practical implementation and experimentation are possible, focusing the understanding of the computational nature of design. During this research, the proposed system was tested in two case studies with students from schools that had contrary orientations in terms of the importance of CAD in the architectural curriculum. In these experimental courses, students' activities evolved from using a commercial CAD tool in an innovative way, to the use of programming techniques for creating meaningful tools. Despite not having a statistical reach, the fieldwork allowed drawing preliminary conclusions about the proposed system's efficacy, since virtually all the students reported changing their understanding of the role of CAD in architecture, while some also acknowledged a conceptual influence in other subjects and in the way they see architecture.
keywords	Symmetry
series	thesis:PhD
type	normal paper
email
more	http://www.fec.unicamp.br/~celani/
last changed	2004/11/17 20:51

_id	caadria2009_026
id	caadria2009_026
authors	Ostwald, Michael J.; Josephine Vaughan
year	2009
title	Calculating Visual Complexity In Peter Eisenman’s Architecture
source	Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 75-84
doi	https://doi.org/10.52842/conf.caadria.2009.075
summary	This paper describes the results of the first computational investigation of characteristic visual complexity in the architecture of Peter Eisenman. The research uses a variation of the “box-counting” approach to determining a quantitative value of the formal complexity present in five of Eisenman’s early domestic works (Houses I, II, III, IV and VI all of which were completed between 1968 and 1976). The boxcounting approach produces an approximate fractal dimension calculation for the visual complexity of an architectural elevation. This method has previously been used to analyse a range of historic and modern buildings including the works of Frank Lloyd Wright, Eileen Gray, Le Corbusier and Kazuyo Sejima. Peter Eisenman’s early house designs–important precursors to his later Deconstructivist works–are widely regarded as possessing a high degree of formal consistency and a reasonably high level of visual complexity. Through this analysis it is possible to quantify both the visual complexity and the degree of consistency present in this work for the first time.
keywords	Computational analysis; fractal dimension; box-counting; Peter Eisenman
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	b0e7
authors	Ahmad Rafi, M.E. and Karboulonis, P.
year	2000
title	The Re-Convergence of Art and Science: A Vehicle for Creativity
source	CAADRIA 2000 [Proceedings of the Fifth Conference on Computer Aided Architectural Design Research in Asia / ISBN 981-04-2491-4] Singapore 18-19 May 2000, pp. 491-500
doi	https://doi.org/10.52842/conf.caadria.2000.491
summary	Ever-increasing complexity in product design and the need to deliver a cost-effective solution that benefits from a dynamic approach requires the employment and adoption of innovative design methods which ensure that products are of the highest quality and meet or exceed customers' expectations. According to Bronowski (1976) science and art were originally two faces of the same human creativity. However, as civilisation advances and works became specialised, the dichotomy of science and art gradually became apparent. Hence scientists and artists were born, and began to develop work that was polar opposite. The sense of beauty itself became separated from science and was confined within the field of art. This dichotomy existed through mankind's efforts in advancing civilisation to its present state. This paper briefly examines the relationship between art and science through the ages and discusses their relatively recent re-convergence. Based on this hypothesis, this paper studies the current state of the convergence between arts and sciences and examines the current relationship between the two by considering real world applications and products. The study of such products and their successes and impact they had in the marketplace due to their designs and aesthetics rather than their advanced technology that had partially failed them appears to support this argument. This text further argues that a re-convergence between art and science is currently occurring and highlights the need for accelerating this process. It is suggested that re-convergence is a result of new technologies which are adopted by practitioners that include effective visualisation and communication of ideas and concepts. Such elements are widely found today in multimedia and Virtual Environments (VEs) where such tools offer increased power and new abilities to both scientists and designers as both venture in each other's domains. This paper highlights the need for the employment of emerging computer based real-time interactive technologies that are expected to enhance the design process through real-time prototyping and visualisation, better decision-making, higher quality communication and collaboration, lessor error and reduced design cycles. Effective employment and adoption of innovative design methods that ensure products are delivered on time, and within budget, are of the highest quality and meet customer expectations are becoming of ever increasing importance. Such tools and concepts are outlined and their roles in the industries they currently serve are identified. Case studies from differing fields are also studied. It is also suggested that Virtual Reality interfaces should be used and given access to Computer Aided Design (CAD) model information and data so that users may interrogate virtual models for additional information and functionality. Adoption and appliance of such integrated technologies over the Internet and their relevance to electronic commerce is also discussed. Finally, emerging software and hardware technologies are outlined and case studies from the architecture, electronic games, and retail industries among others are discussed, the benefits are subsequently put forward to support the argument. The requirements for adopting such technologies in financial, skills required and process management terms are also considered and outlined.
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	ecaade2014_113
id	ecaade2014_113
authors	Burak Pak and Johan Verbeke
year	2014
title	ICT-enabled Civic Empowerment and Participation: in Design, through Design
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 1, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 89-97
doi	https://doi.org/10.52842/conf.ecaade.2014.1.089
wos	WOS:000361384700008
summary	This paper aims to discuss the potentials of novel modes of participatory design in relation to the latest developments in Information and Communication Technologies (ICT). The first part of the study involves the extraction of the basic principles from the extraordinary cases of the Medical Faculty Housing by Lucien Kroll (1976) and Cedric Price's Fun Place (1965) in which various forms of ICT-enabled participation were conceived. In the second part, we reframe the existing ICT tools and strategies and elaborate their potentials to support the modes of participation performed in these two cases. As a result, by distilling the created knowledge, we introduce a model of ICT-enabled design participation which exploits a set of collective action tools to support sustainable ways of self-organization and bottom-up design.
keywords	Participatory architectural design; crowdsourcing; crowdfunding; self-organization
series	eCAADe
email
last changed	2022/06/07 07:54

_id	01ed
authors	Haberman, N. and DeWayne, M.C.
year	1976
title	ADA for Experienced Programmers
source	Reading, MA: Addison-Wesley
summary	A unique presentation of Ada, the powerful programming language sponsored and championed by the Department of Defense, and mandated to be used for developing all mission-critical software to used by the U.S. Armed Forces. This text is offered to experienced programmers, who most often lack the resources to learn a new language: either the existing texts are too simple, designed for beginners, or the texts are of reference quality, designed to be of use to users with extensive experience "behind the wheel," so to speak. Contains sample situations and study questions to help learners absorb Ada concepts.
series	other
last changed	2003/04/23 15:14

_id	8f1d
authors	Herot, C.
year	1976
title	Graphical Input Through Machine Recognition of Sketches
source	Computer Graphics, SIGGRAPH Quarterly Report, Vol. 10, No. 2
summary	A family of programs has been developed to allow graphical input through continuous digitizing. Drawing data, sampled at a high and constant rate, is compressed and mapped into lines and splines, in two and three dimensions. This is achieved by inferring a particular user's intentions from measures of speed and pressure.Recent experiments have shown that even the most basic inference making cannot rely solely upon knowledge of the user's drawing style, but needs additional knowledge of the subject being drawn, the protocols of its domain, and the stage of development of the user's design. This requirement implies a higher level of machine intelligence than currently exists. An alternate approach is to increase the user's involvement in the recognition process.Contrary to previous efforts to move from sketch to mechanical drawing without human intervention, this paper reports on an interactive system for graphical input in which the user overtly partakes in training the machine and massaging the data at all levels of interpretation. The initial routines for data compression employ parallel functions for extracting such features as bentness, straightness, and endness. These are planned for implementation in microprocessors.Results offer a system for rapid (and enjoyable) graphical input with real-time interpretation, the beginnings of an intelligent tablet.
series	report
last changed	2003/04/23 15:50

_id	407caadria2004
id	407caadria2004
authors	Larry Sass
year	2004
title	Rapid Prototyping Techniques for Building Program Study
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 655-670
doi	https://doi.org/10.52842/conf.caadria.2004.655
summary	This paper is original research that demonstrates new design possibilities for evaluation in the schematic phase of design through the use rapid prototyping as a tool of representation verses 2D drawing. These program shapes are created from CAD files using a threedimensional printing and laser cutting CAM tools. This way of working is in response to two dimensional plan representation and evaluation (Mitchell 1976). This research combines the best of the visual aspects of plan representation and the formal representation of solid block modeling. The models in this paper demonstrate the building’s physical scale of spaces, building use and overall form. Resulting models will demonstrate a new way of designing in CAD one that combined physical and visual ways or representation.
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	acadia03_046
id	acadia03_046
authors	Maze, J., McGlothlin, M. and Tanzer, K.
year	2003
title	Fluid (in)form:Influencing Design Through Dynamic Particle Simulation
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 357-363
doi	https://doi.org/10.52842/conf.acadia.2003.357
summary	“My earliest childhood memories are related to a ranch my family owned near the village of Mazamitla. It was a pueblo with hills, formed by houses with tile roofs and immense eaves to shield passersby from the heavy rains which fall in that area. Even the earth’s color was interesting because it was red earth. In this village, the water distribution system consisted of great gutted logs, in the form of troughs, which ran on a support structure of tree forks, five meters high, above the roofs. The aqueduct crossed over the town, reaching the patios, where there were great stone fountains to receive the water. The patios outside the stables, with cows and chickens, all together. Outside, in the street, there were iron rings to tie the horses. The channeled logs, covered with moss, dripped water all over town, of course. It gave this village the ambience of a fairy tale.”(Luis Barragan,qtd in Ambasz 1976)
series	ACADIA
email
last changed	2022/06/07 07:58

_id	2ca1
authors	Montagu, A. and Bermudez, J.
year	1998
title	Datarq: The Development of a Website of Modern Contemporary Architecture
source	Computerised Craftsmanship [eCAADe Conference Proceedings] Paris (France) 24-26 September 1998
doi	https://doi.org/10.52842/conf.ecaade.1998.x.p7a
summary	The pedagogic approach in the architectural field is suffering a deep change taking in consideration the impact that has been produced mainly by the CAD and multimedia procedures. An additional view to be taken in consideration is the challenge produced by the influence of advanced IT which since 1990-92, has affected positively the exchange of information among people of the academic environment. Several studies confirm this hypothesis, from the wide cultural spectrum when the digitalization process was emerging as an alternative way to data processing (Bateson 1976) to the pedagogical-computational side analyzed by (Papert 1996). One of the main characteristics indicated by S. Papert (op.cit) is the idea of "self teaching" which students are used everywhere due to the constant augment of "friendly" software and the decreasing costs of hardware. Another consequences to point out by S. Paper (op.cit) is that will be more probably that students at home will have more actualized equipment that most of the computer lab. of schools in general. Therefore, the main hypothesis of this paper is, "if we are able to combine usual tutorials design methods with the concept of "self-teaching" regarding the paradigmatic architectural models that are used in practically all the schools of architecture (Le Corbusier, F.L.Wright, M.v. der Rohe, M.Botta, T.Ando, etc.) using a Web site available to everybody, what we are doing is expanding the existing knowledge in the libraries and fulfill the future requirements of the newly generations of students".
series	eCAADe
email
more	http://www.paris-valdemarne.archi.fr/archive/ecaade98/html/35montagu/index.htm
last changed	2022/06/07 07:50

_id	c1a7
authors	Nerlich, Graham
year	1976
title	The Shape of Space
source	London: Cambridge University Press
summary	This is a revised and updated edition of Graham Nerlich's classic book The Shape of Space. It develops a metaphysical account of space which treats it as a real and concrete entity. In particular, it shows that the shape of space plays a key explanatory role in space and spacetime theories. Arguing that geometrical explanation is very like causal explanation, Professor Nerlich prepares the ground for philosophical argument, and, using a number of novel examples, investigates how different spaces would affect perception differently. This leads naturally to conventionalism as a non-realist metaphysics of space, an account which Professor Nerlich criticises, rejecting its Kantian and positivistic roots along with Reichenbach's famous claim that even the topology of space is conventional. He concludes that there is, in fact, no problem of underdetermination for this aspect of spacetime theories, and offers an extensive discussion of the relativity of motion.
series	other
last changed	2003/04/23 15:14

_id	4239
authors	Weizenbaum, Joseph
year	1976
title	Computer Power and Human Reason : From Judgement to Calculation
source	xii, 300 p. : ill. San Francisco: W H. Freeman and Company, 1976. includes bibliography and index.
summary	The book ia a computer scientist's elucidation of the impact of scientific rationality on man's self-image
keywords	programming, AI, reasoning, logic, psychology, intelligence
series	CADline
last changed	1999/02/12 15:10

_id	d59a
authors	Zarnowiecka, Jadwiga C.
year	1999
title	AI and Regional Architecture
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 584-588
doi	https://doi.org/10.52842/conf.ecaade.1999.584
summary	In 1976 Richard Foqué established periods in the development of methods of designing. The first stage (the 50's and early 60's) - automatization of the designing process - properly identified language of description that is understood by a machine is vital. Christopher Alexander publishes 'Pattern Language'. The second stage (late 60's) - the use of the Arts - research techniques as interview, questionnaire, active observation; ergonomic aspects are also taken into consideration. The third stage (starts at the turn of the 60's and 70's) - co-participation of all of the parties involved in the designing process, and especially the user. The designing process becomes more complex but at the same time more intelligible to a non-professional - Alexander's 'Pattern Language' returns. It's been over 20 years now since the publication of this work. In the mid 70's prototypes of integrate building description are created. We are dealing now with the next stage of the designing methods development. Unquestionable progress of computer optimalization of technical and economical solutions has taken place. It's being forecasted that the next stage would be using computer as a simulator of the designing process. This stage may be combined with the development of AI. (Already in 1950 Alan Turing had formulated the theoretical grounds of Artificial Intelligence.) Can the development of the AI have the influence on the creation of present time regional architecture? Hereby I risk a conclusion that the development of AI can contribute to the creation of modern regional architecture.
keywords	Design Process, Artificial Intelligence, Regional Architecture
series	eCAADe
email
last changed	2022/06/07 07:57

_id	aa83
authors	Aho, Alfred V., Hopcroft , John E. and Ullman, Jeffrey D.
year	1976
title	The Design and Analysis of Computer Algorithms
source	x, 470 p. : ill Reading, Massachusetts: Addison-Weslely Pub. Co., 1976. includes bibliography: p. [452]-462 and index.
summary	A text book for a first course in design and analysis of algorithms. The emphasis is on ideas and ease of understanding rather then on implementation details or programming tricks. It starts with formulating several models that include random access register machine, random access stored program machine and variants of these, so one can establish analytical results and at the same time accurately reflect on the salient features of real machines
keywords	algorithms, programming
series	CADline
last changed	2003/06/02 13:58

_id	fb37
authors	Knight, T.
year	1999
title	Applications in architectural design and education and practice
source	Report for the NSF/MIT Workshop on Shape Computation, Cambridge, Mass., 25-26 April 1999
summary	Shortly after shape grammars were invented by Stiny and Gips, a two part project for shape grammars was outlined by Stiny. In a 1976 paper,1 Stiny described "two exercises in formal composition". These simple exercises became the foundation for the many applications of shape grammars that followed, and suggested the potential of such applications in education and practice. The first exercise showed how shape grammars could be used in original composition, that is, the creation of new design languages or styles from scratch. The second exercise showed how shape grammars could be used to analyze known or existing design languages. Both exercises illustrated the unique characteristics of the shape grammar formalism that helped motivate a quarter century (almost!) of shape grammar work. General but simple, formal yet intuitive: qualities that continue to make shape grammar disciples and confound skeptics. The history of shape grammar applications in architecture and the arts for the two complementary purposes of synthesis and analysis, as well as for a third, joint purpose is sketched in the first section of this report. These three categories of applications do not have rigid boundaries. They are used in this report mostly as a framework for discussion. An overview of the roles of shape grammar applications in education and practice is given in the second section. New and ongoing issues concerning shape grammars in education and practice are discussed in the last section.
series	report
last changed	2003/04/23 15:50

_id	020e
authors	Wade, John W. and Baur, J. Scott
year	1989
title	Evaluation According to a Metric for Visual Order
source	December 1989. 18 p. includes bibliography
summary	Varying degrees of stimulus in the environment are appropriate to different tasks, so a uniform level of order in design cannot account for the many activities that will take place in a building. An ability to measure the visual order in a scene would facilitate the evaluation of design proposals. The designer could apply such a measure to establish a preferred level of order for a particular activity. A measure of order would also make possible the evaluation of the finished building product in terms of its use and in terms of any explicit goals of the designer. This paper describes a group of hypotheses proposed by Wade in a 1976 paper intended to develop a metric for visual order. It then examines the available literature to include other research that relates to this topic. It brings the earlier hypotheses up to date, outlines a strategy for testing those hypotheses, and proposes to develop the metric using computer image processing techniques. It also describes the methods that will be applied to validate the metric against the order that people perceive in the environment. To establish an objective standard for order, the metric that assesses the order will address only the features and attributes specific to scene. Thus, the measure will depend on neither the semantic content nor the figural properties of the field. The hypotheses under investigation are: (1) That visual order is related to the number of potential figure-ground shifts present in a visual field; (2) that the number of figure- ground shifts is dependent on the degree of articulation of the field; (3) that the number of figure-ground shifts is dependent on the distribution of color in the visual field; and (4) that the number of figure-ground shifts is dependent on the structure of the visual field. The various components of these elements are also detailed. From this, the designer will be able to determine which components of a design possess the appropriate level of order for a given task and which do not. The direct application of these principles will be explored in the design studio
keywords	evaluation, analysis, aesthetics, form
series	CADline
last changed	2003/06/02 13:58

_id	6215
authors	Samlowski, Wolfgang
year	1976
title	Case Grammar
source	North-Holland Pub. Co., 1976. pp. 55-72 : some ill
summary	Case Grammar is another approach among transformational linguistic theories of semantics having an important influence on AI. In this chapter the author present Fillmore's approach to Case Grammar, not only because he is the most important representative of Case Grammar theorists, but also because several leading researchers within AI explicitly refer to him, though not always with justification
keywords	grammars, semantics, AI, theory, representation
series	CADline
last changed	1999/02/12 15:09

_id	186e
authors	Blinn, J.F. and Newell, M.E.
year	1976
title	Texture and Reflection in Computer Generated Images
source	Communications of the ACM 19 10 542-547
summary	In 1974 Catmull developed a new algorithm for rendering images of bivariate surface patches. This paper describes extensions of this algorithm in the areas of texture simulation and lighting models. The parametrization of a patch defines a coordinate system which is used as a key for mapping patterns onto the surface. The intensity of the pattern at each picture element is computed as a weighted average of regions of the pattern definition function. The shape and size of this weighting function are chosen using digital signal processing theory. The patch rendering algorithm allows accurate computation of the surface normal to the patch at each picture element, permitting the simulation of mirror reflections. The amount of light coming from a given direction is modeled in a similar manner to the texture mapping and then added to the intensity obtained from the texture mapping. Several examples of images synthesized using these new techniques are included.
series	journal paper
last changed	2003/11/21 15:16

_id	62c4
authors	Blinn, James F. and Newell, Martin E.
year	1976
title	Texture and Reflection in Computer Generated Images
source	communications of the ACM October, 1976. vol. 19: pp. 542-547 : ill. (col.). includes bibliography.
summary	In 1974 Catmull developed a new algorithm for rendering images of bivariate surface patches. This paper describes extensions of this algorithm in the areas of texture simulation and lighting models. The parametrization of a patch defines a coordinate system which is used as a key for mapping patterns onto the surface. The intensity of the pattern at each picture element is computed as a weighted average of regions of the pattern definition function. The shape and size of this weighting function are chosen using digital signal processing theory. The patch rendering algorithm allows accurate computation of the surface normal to the patch at each picture element, permitting the simulation of mirror reflections. The amount of light coming from a given direction is modeled in a similar manner to the texture mapping and then added to the intensity obtained from the texture mapping. Several examples of images synthesized using these new techniques are included
keywords	algorithms, computer graphics, shading, hidden surfaces, texture mapping, curved surfaces, rendering
series	CADline
last changed	2003/06/02 13:58

_id	2866
authors	Clark, James H.
year	1976
title	Hierarchical Geometric Model for Visible Surface Algorithms
source	communications of the ACM. October, 1976. vol. 19: pp. 547-554 : ill. includes bibliography
summary	The geometric structure inherent in the definition of the shapes of three-dimensional objects and environments is used not just to define their relative motion and placement, but also to assist in solving many other problems of systems for producing pictures by computers. By using an extension of traditional structure information, or a geometric hierarchy, five significant improvements to current techniques are possible. First, the range of complexity of an environment is greatly increased while the visible complexity of any given scene is kept within a fixed upper limit. Second, a meaningful way is provided to vary the amount of detail presented in a scene. Third, 'clipping' becomes a very fast logarithmic search for the resolvable parts of the environment within the field of view. Fourth, frame to frame coherence and clipping define a graphical 'working set,' or fraction of the total structure that should be present in primary store for immediate access by the visible surface algorithm. Finally, the geometric structure suggests a recursive descent, visible surface algorithm in which the computation time potentially grows linearly with the visible complexity of the scene
keywords	hidden lines, hidden surfaces, data structures, clipping, geometric modeling, algorithms, computer graphics
series	CADline
last changed	2003/06/02 13:58

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