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	avocaad_2001_15
id	avocaad_2001_15
authors	Henri Achten, Jos van Leeuwen
year	2001
title	Scheming and Plotting your Way into Architectural Complexity
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	The problem of complexity underlies all design problems. With the advent of CAD however, our ability to truly represent complexity has increased considerably. Following the four waves of design methodology as distinguished by Cross (1984), we see changing architectural design attitudes with respect to complexity. Rather than viewing it as problematic issue, designers such as Koolhaas, van Berkel, Lynn, and Franke embrace complexity and make it a focus in their design work. The computer is an indispensable instrument in this approach. The paper discusses the current state of the art in architectural design positions on complexity and CAAD, and reflects in particular on the role of design representations in this discussion. It is advanced that a number of recent developments are based on an intensified use of design representations such as schema’s, diagrams, and interactive modelling techniques. Within the field of possibilities in this field, the authors discuss Feature-Based Modelling (FBM) as a formalism to represent knowledge of the design. It is demonstrated how the FBM approach can be used to describe graphic representations as used in design, and how other levels and kinds of design knowledge can be incorporated, in particular the less definite qualitative information in the early design phase. The discussion section concludes with an extrapolation of the current role of design representation in the design process, and advances a few positions on the advantage and disadvantage of this role in architectural design.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	ga9928
id	ga9928
authors	Goulthorpe
year	1999
title	Hyposurface: from Autoplastic to Alloplastic Space
source	International Conference on Generative Art
summary	By way of immediate qualification to an essay which attempts to orient current technical developments in relation to a series of dECOi projects, I would suggest that the greatest liberation offered by new technology in architecture is not its formal potential as much as the patterns of creativity and practice it engenders. For increasingly in the projects presented here dECOi operates as an extended network of technical expertise: Mark Burry and his research team at Deakin University in Australia as architects and parametric/ programmatic designers; Peter Wood in New Zealand as programmer; Alex Scott in London as mathematician; Chris Glasow in London as systems engineer; and the engineers (structural/services) of David Glover’s team at Ove Arup in London. This reflects how we’re working in a new technical environment - a new form of practice, in a sense - a loose and light network which deploys highly specialist technical skill to suit a particular project. By way of a second disclaimer, I would suggest that the rapid technological development we're witnessing, which we struggle to comprehend given the sheer pace of change that overwhelms us, is somehow of a different order than previous technological revolutions. For the shift from an industrial society to a society of mass communication, which is the essential transformation taking place in the present, seems to be a subliminal and almost inexpressive technological transition - is formless, in a sense - which begs the question of how it may be expressed in form. If one holds that architecture is somehow the crystallization of cultural change in concrete form, one suspects that in the present there is no simple physical equivalent for the burst of communication technologies that colour contemporary life. But I think that one might effectively raise a series of questions apropos technology by briefly looking at 3 or 4 of our current projects, and which suggest a range of possibilities fostered by new technology. By way of a third doubt, we might qualify in advance the apparent optimism of architects for CAD technology by thinking back to Thomas More and his island ‘Utopia’, which marks in some way the advent of Modern rationalism. This was, if not quite a technological utopia, certainly a metaphysical one, More’s vision typically deductive, prognostic, causal. But which by the time of Francis Bacon’s New Atlantis is a technological utopia availing itself of all the possibilities put at humanity’s disposal by the known machines of the time. There’s a sort of implicit sanction within these two accounts which lies in their nature as reality optimized by rational DESIGN as if the very ethos of design were sponsored by Modern rationalist thought and its utopian leanings. The faintly euphoric ‘technological’ discourse of architecture at present - a sort of Neue Bauhaus - then seems curiously misplaced historically given the 20th century’s general anti-, dis-, or counter-utopian discourse. But even this seems to have finally run its course, dissolving into the electronic heterotopia of the present with its diverse opportunities of irony and distortion (as it’s been said) as a liberating potential.1 This would seem to mark the dissolution of design ethos into non-causal process(ing), which begs the question of ‘design’ itself: who 'designs' anymore? Or rather, has 'design' not become uncoupled from its rational, deterministic, tradition? The utopianism that attatches to technological discourse in the present seems blind to the counter-finality of technology's own accomplishments - that transparency has, as it were, by its own more and more perfect fulfillment, failed by its own success. For what we seem to have inherited is not the warped utopia depicted in countless visions of a singular and tyrranical technology (such as that in Orwell's 1984), but a rich and diverse heterotopia which has opened the possibility of countless channels of local dialect competing directly with the channels of power. Undoubtedly such multiplicitous and global connectivity has sent creative thought in multiple directions…
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	3386
authors	Gavin, L., Keuppers, S., Mottram, C. and Penn, A.
year	2001
title	Awareness Space in Distributed Social Networks
source	Proceedings of the Ninth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-7023-6] Eindhoven, 8-11 July 2001, pp. 615-628
summary	In the real work environment we are constantly aware of the presence and activity of others. We know when people are away from their desks, whether they are doing concentrated work, or whether they are available for interaction. We use this peripheral awareness of others to guide our interactions and social behaviour. However, when teams of workers are spatially separated we lose 'awareness' information and this severely inhibits interaction and information flow. The Theatre of Work (TOWER) aims to develop a virtual space to help create a sense of social awareness and presence to support distributed working. Presence, status and activity of other people are made visible in the theatre of work and allow one to build peripheral awareness of the current activity patterns of those who we do not share space with in reality. TOWER is developing a construction set to augment the workplace with synchronous as well as asynchronous awareness. Current, synchronous activity patterns and statuses are played out in a 3D virtual space through the use of symbolic acting. The environment itself however is automatically constructed on the basis of the organisation's information resources and is in effect an information space. Location of the symbolic actor in the environment can therefore represent the focus of that person's current activity. The environment itself evolves to reflect historic patterns of information use and exchange, and becomes an asynchronous representation of the past history of the organisation. A module that records specific episodes from the synchronous event cycle as a Docudrama forms an asynchronous information resource to give a history of team work and decision taking. The TOWER environment is displayed using a number of screen based and ambient display devices. Current status and activity events are supplied to the system using a range of sensors both in the real environment and in the information systems. The methodology has been established as a two-stage process. The 3D spatial environment will be automatically constructed or generated from some aspect of the pre-existing organisational structure or its information resources or usage patterns. The methodology must be extended to provide means for that structure to grow and evolve in the light of patterns of actual user behaviour in the TOWER space. We have developed a generative algorithm that uses a cell aggregation process to transcribe the information space into a 3d space. In stage 2 that space was analysed using space syntax methods (Hillier & Hanson, 1984; Hillier 1996) to allow the properties of permeability and intelligibility to be measured, and then these fed back into the generative algorithm. Finally, these same measures have been used to evaluate the spatialised behaviour that users of the TOWER space show, and will used to feed this back into the evolution of the space. The stage of transcription from information structure to 3d space through a generative algorithm is critical since it is this stage that allows neighbourhood relations to be created that are not present in the original information structure. It is these relations that could be expected to help increase social density.
keywords	Algorithmic Form Generation, Distributed Workgroups, Space Syntax
series	CAAD Futures
email
last changed	2006/11/07 07:22

_id	c1ae
authors	Gulliehsen, Eric and Chang, Ernest
year	1984
title	An Expert System for Generative Architectural Design
source	December, 1984. pp. 253-267. includes bibliography
summary	The mathematician-architect Christopher Alexander has devised a scientific theory of architectural design. He believes that all existing architectural entities can be described as interacting patterns, all possible relationships of which are governed by generative rules. These form a pattern language capable of generating design forms appropriate to a given environmental context. The complexity of interaction among these rules leads to difficulties in their representation by conventional methods. This paper presents a computer-based expert system which implements Alexander's design methodology
keywords	synthesis, expert systems, CAD, patterns, design, methods, architecture, theory
series	CADline
last changed	2003/06/02 10:24

_id	caadria2004_k-1
id	caadria2004_k-1
authors	Kalay, Yehuda E.
year	2004
title	CONTEXTUALIZATION AND EMBODIMENT IN CYBERSPACE
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. 5-14
doi	https://doi.org/10.52842/conf.caadria.2004.005
summary	The introduction of VRML (Virtual Reality Markup Language) in 1994, and other similar web-enabled dynamic modeling software (such as SGI’s Open Inventor and WebSpace), have created a rush to develop on-line 3D virtual environments, with purposes ranging from art, to entertainment, to shopping, to culture and education. Some developers took their cues from the science fiction literature of Gibson (1984), Stephenson (1992), and others. Many were web-extensions to single-player video games. But most were created as a direct extension to our new-found ability to digitally model 3D spaces and to endow them with interactive control and pseudo-inhabitation. Surprisingly, this technologically-driven stampede paid little attention to the core principles of place-making and presence, derived from architecture and cognitive science, respectively: two principles that could and should inform the essence of the virtual place experience and help steer its development. Why are the principles of place-making and presence important for the development of virtual environments? Why not simply be content with our ability to create realistically-looking 3D worlds that we can visit remotely? What could we possibly learn about making these worlds better, had we understood the essence of place and presence? To answer these questions we cannot look at place-making (both physical and virtual) from a 3D space-making point of view alone, because places are not an end unto themselves. Rather, places must be considered a locus of contextualization and embodiment that ground human activities and give them meaning. In doing so, places acquire a meaning of their own, which facilitates, improves, and enriches many aspects of our lives. They provide us with a means to interpret the activities of others and to direct our own actions. Such meaning is comprised of the social and cultural conceptions and behaviors imprinted on the environment by the presence and activities of its inhabitants, who in turn, ‘read’ by them through their own corporeal embodiment of the same environment. This transactional relationship between the physical aspects of an environment, its social/cultural context, and our own embodiment of it, combine to create what is known as a sense of place: the psychological, physical, social, and cultural framework that helps us interpret the world around us, and directs our own behavior in it. In turn, it is our own (as well as others’) presence in that environment that gives it meaning, and shapes its social/cultural character. By understanding the essence of place-ness in general, and in cyberspace in particular, we can create virtual places that can better support Internet-based activities, and make them equal to, in some cases even better than their physical counterparts. One of the activities that stands to benefit most from understanding the concept of cyber-places is learning—an interpersonal activity that requires the co-presence of others (a teacher and/or fellow learners), who can point out the difference between what matters and what does not, and produce an emotional involvement that helps students learn. Thus, while many administrators and educators rush to develop webbased remote learning sites, to leverage the economic advantages of one-tomany learning modalities, these sites deprive learners of the contextualization and embodiment inherent in brick-and-mortar learning institutions, and which are needed to support the activity of learning. Can these qualities be achieved in virtual learning environments? If so, how? These are some of the questions this talk will try to answer by presenting a virtual place-making methodology and its experimental implementation, intended to create a sense of place through contextualization and embodiment in virtual learning environments.
series	CAADRIA
type	normal paper
last changed	2022/06/07 07:52

_id	ceb1
authors	Maver, T.
year	1984
title	What is eCAADe?
source	The Third European Conference on CAD in the Education of Architecture [eCAADe Conference Proceedings] Helsinki (Finnland) 20-22 September 1984.
doi	https://doi.org/10.52842/conf.ecaade.1984.x.d0s
summary	The main interest of the organisation is to improve the design, teaching. The design remains the core of the professional education, while computer science can support a better understanding of the design methods. Computers should amplify the human capabilities like engines allowed to carry higher forces, radio and television enabled communication over larger distances and computers today should aid the human intellectual activities, to gain a better insight in design methodology, to investigate the design process.Design research should study more extensively how buildings behave, the integration and interaction of different disciplines which contribute to the optimization of a design and the design criteria. Computers could increase the possibility to satisfy building regulations, to access and update information, to model the design process and to understand how decisions affect the building quality (functional and economical as well as formal aspects). More effort and money should be spent on this research. The organisation has been sponsored by the EEC for bringing CAAD (Computer Aided Architectural Design) educational material at the disposal of the design teachers. The Helsinki conference is the third European meeting (after Delft 1982 and Brussels 1983) which concentrates on information and experience exchange in CAAD-education and looks for common interests and collaboration. A specific joint study program works on typical audiovisual material and lecture notes, which will be updated according to teacher's needs. A demand has been done to implement an integrated CAAD package. eCAADe focuses to integrate computer approaches across country boundaries as well as across disciplinary boundaries, as to reach a higher quality of the design education.
series	eCAADe
email
last changed	2022/06/07 07:50

_id	676a
authors	Valiant, L.G.
year	1984
title	A Theory of the Learnable
source	Communications of the ACM. November,1984. vol. 27: pp. 1134-1142. includes bibliography
summary	In this paper the author regards learning as the phenomenon of knowledge acquisition in the absence of explicit programming. The author gives a precise methodology for studying this phenomenon from a computational viewpoint. It consists of choosing an appropriate information gathering mechanism, the learning protocol, and exploring the class of concepts that can be learned using it in a reasonable (polynomial) number of steps. Although inherent algorithmic complexity appears to set serious limits on the range of concepts that can be learned, the author shows that there are some important nontrivial classes of propositional concepts that can be learned in a realistic sense
keywords	AI, learning, natural languages, research, techniques, design, knowledge acquisition, theory
series	CADline
last changed	2003/06/02 13:58

_id	af76
authors	Wong, Waycal C.H. and Will, Barry F.
year	1996
title	An Analysis of Using a Digital 3D Sundial as a Design and Decision Support Tool
source	CAADRIA ‘96 [Proceedings of The First Conference on Computer Aided Architectural Design Research in Asia / ISBN 9627-75-703-9] Hong Kong (Hong Kong) 25-27 April 1996, pp. 131-141
doi	https://doi.org/10.52842/conf.caadria.1996.131
summary	The rapid speed of computer development brings new technologies, and these advances require innovative investigations to apply them optimally in the field of architecture. Burkett (1984) demonstrated that computer graphics can ‘provide an excellent opportunity for exploring solar issues in building redesign’. With one of the latest computer technologies, the "hyper-model” environment, this research investigates how to environment can become an aid in the design and decision support area. The research first reviews the communication between the architect and the client as described by Salisbury (1990). The review indicates that an interactive 3D hypermedia paradigm, with quick response, fast data manipulation and 3D visualization, offers a better communication media between the architect and the client. This research applies the "hyper-model” environment to design and develop a new methodology in collecting, analyzing, and presenting solar data. It also endeavors to show the possibilities of using the environment in design process.
series	CAADRIA
last changed	2022/06/07 07:57

_id	409c
authors	Akin, Omer, Flemming, Ulrich and Woodbury, Robert F.
year	1984
title	Development of Computer Systems for Use in Architectural Education
source	1984. ii, 47 p. includes bibliography
summary	Computers have not been used in education in a way that fosters intellectual development of alternate approaches to design. Sufficient theory exists to use computing devices to support other potentially fruitful approaches to design. A proposal is made for the development of a computer system for architectural education which is built upon a particular model for design, that of rational decision making. Within the framework provided by the model, a series of courseware development projects are proposed which together with hardware acquisitions constitute a comprehensive computer system for architectural education
keywords	architecture, education, design, decision making
series	CADline
email
last changed	2003/06/02 13:58

_id	d5c8
authors	Angelo, C.V., Bueno, A.P., Ludvig, C., Reis, A.F. and Trezub, D.
year	1999
title	Image and Shape: Two Distinct Approaches
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 410-415
summary	This paper is the result of two researches done at the district of Campeche, Florianópolis, by the Grupo PET/ARQ/UFSC/CAPES. Different aspects and conceptual approaches were used to study the spatial attributes of this district located in the Southern part of Santa Catarina Island. The readings and analysis of two researches were based on graphic pistures builded with the use of Corel 7.0 e AutoCadR14. The first research – "Urban Development in the Island of Santa Catarina: Public Space Study"- examined the urban structures of Campeche based on the Spatial Syntax Theory developed by Hillier and Hanson (1984) that relates form and social appropriation of public spaces. The second research – "Topoceptive Characterisation of Campeche: The Image of a Locality in Expansion in the Island of Santa Catarina" -, based on the methodology developed by Kohlsdorf (1996) and also on the visual analysis proposed by Lynch (1960), identified characteristics of this locality with the specific goal of selecting attributes that contributed to the ideas of the place its population held. The paper consists of an initial exercise of linking these two methods in order to test the complementarity of their analytical tools. Exemplifying the analytical procedures undertaken in the two approaches, the readings done - global (of the locality as a whole) and partial (from parts of the settlement) - are presented and compared.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	44b1
authors	Balas, Egon
year	1984
title	On the Facial Structure of Scheduling Polyhedra
source	49 p., 6 p. of appendix : ill. Pittsburgh, PA: Design Research Center, Carnegie Mellon Univ., December, 1984. includes bibliography
summary	A well-known job shop scheduling problem can be formulated as follows. Given a graph G with node set N and with directed and undirected arcs, find an orientation of the undirected arcs that minimizes the length of a longest path in G. The author treats the problem as a disjunctive program, without recourse to integer variables, and give a partial characterization of the scheduling polyhedron P(N), i.e., the convex hull of feasible schedules. In particular, he derives all the facets inducing inequalities for the scheduling polyhedron P(K) defined on some clique with node set K, and gives a sufficient condition for such inequalities to also induce facets of P(N). One of our results is that any inequality that induces a facet of P(H) for some HCK, also induces a facet of P(K). Another one is a recursive formula for deriving a facet inducing inequality with p positive coefficients from one with p-1 positive coefficients. The author also addresses the constraint identification problem, and gives a procedure for finding an inequality that cuts off a given solution to a subset of the constraints
keywords	polyhedra, graphs, optimization, convex hull
series	CADline
last changed	1999/02/12 15:07

_id	ecaadesigradi2019_449
id	ecaadesigradi2019_449
authors	Becerra Santacruz, Axel
year	2019
title	The Architecture of ScarCity Game - The craft and the digital as an alternative design process
source	Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 3, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 45-52
doi	https://doi.org/10.52842/conf.ecaade.2019.3.045
summary	The Architecture of ScarCity Game is a board game used as a pedagogical tool that challenges architecture students by involving them in a series of experimental design sessions to understand the design process of scarcity and the actual relation between the craft and the digital. This means "pragmatic delivery processes and material constraints, where the exchange between the artisan of handmade, representing local skills and technology of the digitally conceived is explored" (Huang 2013). The game focuses on understanding the different variables of the crafted design process of traditional communities under conditions of scarcity (Michel and Bevan 1992). This requires first analyzing the spatial environmental model of interaction, available human and natural resources, and the dynamic relationship of these variables in a digital era. In the first stage (Pre-Agency), the game set the concept of the craft by limiting students design exploration from a minimum possible perspective developing locally available resources and techniques. The key elements of the design process of traditional knowledge communities have to be identified (Preez 1984). In other words, this stage is driven by limited resources + chance + contingency. In the second stage (Post-Agency) students taking the architects´ role within this communities, have to speculate and explore the interface between the craft (local knowledge and low technological tools), and the digital represented by computation data, new technologies available and construction. This means the introduction of strategy + opportunity + chance as part of the design process. In this sense, the game has a life beyond its mechanics. This other life challenges the participants to exploit the possibilities of breaking the actual boundaries of design. The result is a tool to challenge conventional methods of teaching and leaning controlling a prescribed design process. It confronts the rules that professionals in this field take for granted. The game simulates a 'fake' reality by exploring in different ways with surveyed information. As a result, participants do not have anything 'real' to lose. Instead, they have all the freedom to innovate and be creative.
keywords	Global south, scarcity, low tech, digital-craft, design process and innovation by challenge.
series	eCAADeSIGraDi
email
last changed	2022/06/07 07:54

_id	6050
authors	Bentley, Jon L.
year	1984
title	Algorithm Design Techniques -- Programming Pearls
source	communications of the ACM. September, 1984. vol. 27: pp. 865-871 : ill
summary	The problem arose in one-dimensional pattern recognition: The input is a vector X of N real numbers; the output is the maximum sum found in any contiguous subvector of the input. The problem is when some of the numbers are negative. This column is built around that problem with an emphasis on the algorithms that solve it and the techniques used to design them
keywords	techniques, programming, algorithms, pattern recognition
series	CADline
last changed	2003/06/02 13:58

_id	c159
authors	Bentley, Jon L.
year	1984
title	A Case Study in Applied Algorithm Design
source	IEEE Computer. February, 1984. vol. 17: pp. 75-88 : ill. tables. includes bibliography
summary	In this article the author describes how an algorithm design was used in the development of a small routine in a software system
keywords	algorithms, programming, techniques
series	CADline
last changed	2003/06/02 13:58

_id	a6f1
authors	Bridges, A.H.
year	1986
title	Any Progress in Systematic Design?
source	Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 5-15
summary	In order to discuss this question it is necessary to reflect awhile on design methods in general. The usual categorization discusses 'generations' of design methods, but Levy (1981) proposes an alternative approach. He identifies five paradigm shifts during the course of the twentieth century which have influenced design methods debate. The first paradigm shift was achieved by 1920, when concern with industrial arts could be seen to have replaced concern with craftsmanship. The second shift, occurring in the early 1930s, resulted in the conception of a design profession. The third happened in the 1950s, when the design methods debate emerged; the fourth took place around 1970 and saw the establishment of 'design research'. Now, in the 1980s, we are going through the fifth paradigm shift, associated with the adoption of a holistic approach to design theory and with the emergence of the concept of design ideology. A major point in Levy's paper was the observation that most of these paradigm shifts were associated with radical social reforms or political upheavals. For instance, we may associate concern about public participation with the 1970s shift and the possible use (or misuse) of knowledge, information and power with the 1980s shift. What has emerged, however, from the work of colleagues engaged since the 1970s in attempting to underpin the practice of design with a coherent body of design theory is increasing evidence of the fundamental nature of a person's engagement with the design activity. This includes evidence of the existence of two distinctive modes of thought, one of which can be described as cognitive modelling and the other which can be described as rational thinking. Cognitive modelling is imagining, seeing in the mind's eye. Rational thinking is linguistic thinking, engaging in a form of internal debate. Cognitive modelling is externalized through action, and through the construction of external representations, especially drawings. Rational thinking is externalized through verbal language and, more formally, through mathematical and scientific notations. Cognitive modelling is analogic, presentational, holistic, integrative and based upon pattern recognition and pattern manipulation. Rational thinking is digital, sequential, analytical, explicatory and based upon categorization and logical inference. There is some relationship between the evidence for two distinctive modes of thought and the evidence of specialization in cerebral hemispheres (Cross, 1984). Design methods have tended to focus upon the rational aspects of design and have, therefore, neglected the cognitive aspects. By recognizing that there are peculiar 'designerly' ways of thinking combining both types of thought process used to perceive, construct and comprehend design representations mentally and then transform them into an external manifestation current work in design theory is promising at last to have some relevance to design practice.
series	CAAD Futures
email
last changed	2003/11/21 15:16

_id	8860
authors	Choi, B.K., Barash, M.M. and Anderson, D.C.
year	1984
title	Automatic Recognition of Machined Surfaces from a 3D Solid Model
source	computer Aided Design. March, 1984. vol. 16: pp. 81-86 : ill. includes bibliography
summary	It has been proposed that a direct link between CAD and CAM be provided through a computer-automated process planning system. Described in this paper are algorithmic procedures to identify machined surfaces (i.e., machining requirements) for a workpiece directly from its 3D geometric description. A machined surface is a portion of workpiece that can be generated by a certain mode of metal removal operation. Machined surfaces are algorithmically recognized from a 3D boundary file, and then their 2 1/2D descriptions are obtained in a data structure (format) suitable for an automated process planning system. A simplified boundary file data structure is introduced in order to explain the machined surface recognition procedures
keywords	A machined surface type is defined as a pattern of faces, and a syntactic pattern recognition method is used to find the machined surface from the boundary file
series	CADline
last changed	2003/06/02 13:58

_id	caadria2020_118
id	caadria2020_118
authors	Chow, Ka Lok and van Ameijde, Jeroen
year	2020
title	Generative Housing Communities - Design of Participatory Spaces in Public Housing Using Network Configurational Theories
source	D. Holzer, W. Nakapan, A. Globa, I. Koh (eds.), RE: Anthropocene, Design in the Age of Humans - Proceedings of the 25th CAADRIA Conference - Volume 2, Chulalongkorn University, Bangkok, Thailand, 5-6 August 2020, pp. 283-292
doi	https://doi.org/10.52842/conf.caadria.2020.2.283
summary	This research-by-design project explores how public housing estates can accommodate social diversity and the appropriation of shared spaces, using qualitative and quantitative analysis of circulation networks. A case study housing estate in Hong Kong was analysed through field observations of movements and activities and as a site for the speculative re-design of shared spaces. Generative design processes were developed based on several parameters, including shortest paths, visibility integration and connectivity integration (Hillier & Hanson, 1984). Additional tools were developed to combine these techniques with optimisation of sunlight access, maximisation of views for residential towers and the provision of permeability of ground level building volumes. The project demonstrates how flexibility of use and social engagement can constitute a platform for self-organisation, similar to Jane Jacobs' notion of vibrant streets leading to active and progressive communities. It shows how computational design and configurational theories can promote a bottom-up approach for generating new types of residential environments that support participatory and diverse communities, rather than a conventional top-down approach that is perceived to embody mechanisms of social regimentation.
keywords	Urban Planning and Design; Network Configuration; Community Space and Social Interaction; Hong Kong Public Housing
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	8fd4
authors	Christiansson, Per
year	1984
title	Integrated Computer Aided Design: Present and Future Data Structure
source	CIB W78, Colloquium June, 1984. 6 p. : ill. includes bibliography.
summary	The article presents some viewpoints on data structures which may mirror the building process and development of integrated computer aided design systems. The emphasis is upon the necessity to find a sufficiently valid general approach to system development in order to meet the fast evolution within the field and the demand for development strategies
keywords	data structures, integration, CAD, systems, building process, architecture, standards, construction
series	CADline
last changed	1999/02/12 15:07

_id	20ff
id	20ff
authors	Derix, Christian
year	2004
title	Building a Synthetic Cognizer
source	Design Computation Cognition conference 2004, MIT
summary	Understanding ‘space’ as a structured and dynamic system can provide us with insight into the central concept in the architectural discourse that so far has proven to withstand theoretical framing (McLuhan 1964). The basis for this theoretical assumption is that space is not a void left by solid matter but instead an emergent quality of action and interaction between individuals and groups with a physical environment (Hillier 1996). In this way it can be described as a parallel distributed system, a self-organising entity. Extrapolating from Luhmann’s theory of social systems (Luhmann 1984), a spatial system is autonomous from its progenitors, people, but remains intangible to a human observer due to its abstract nature and therefore has to be analysed by computed entities, synthetic cognisers, with the capacity to perceive. This poster shows an attempt to use another complex system, a distributed connected algorithm based on Kohonen’s self-organising feature maps – SOM (Kohonen 1997), as a “perceptual aid” for creating geometric mappings of these spatial systems that will shed light on our understanding of space by not representing space through our usual mechanics but by constructing artificial spatial cognisers with abilities to make spatial representations of their own. This allows us to be shown novel representations that can help us to see new differences and similarities in spatial configurations.
keywords	architectural design, neural networks, cognition, representation
series	other
type	poster
email
more	http://www.springer.com/computer/ai/book/978-1-4020-2392-7
last changed	2012/09/17 21:13

_id	e7cf
authors	Eastman, Charles M. and Preiss, K.
year	1984
title	A Review of Solid Shape Modelling Based on Integrity
source	Computer Aided Design March, 1984. vol. 16: pp. 66-80 : ill. includes bibliography.
summary	The potential benefits of using a canonical model for representing the shapes of solid objects has led to the design and implementation of a number of geometric modelers with varying capabilities. This paper reviews the approaches taken in solid modeling by defining the well-formedness conditions which must be implemented in any modeling system. The methods for satisfying the well-formedness constraints in the various solid modeling methods are reviewed, using the concept of integrity constraints. The incorporation of integrity constraints, both explicitly and implicitly, into solid modelers are considered, with particular focus on boundary modelers. The use of integrity constraints for defining shape families and assembly families are also presented. The result is a unified view of solid shape modeling systems that enables their classification and extension into particular application areas
keywords	solid modeling, constraints, B-rep
series	CADline
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last changed	2003/05/17 10:15

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