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	caadria2013_162
id	caadria2013_162
authors	Weng, Yueh-Sung; Jia-Yih Chen, Yu-Pin Ma, Cheng-An Pan and Tay-Sheng Jeng
year	2013
title	Eco-Machine: A Green Robotic Ecosystem for Sustainable Environments
source	Open Systems: Proceedings of the 18th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2013) / Singapore 15-18 May 2013, pp. 925-934
doi	https://doi.org/10.52842/conf.caadria.2013.925
wos	WOS:000351496100095
summary	This paper focuses on developing a kinetic system with responsive solutions for sustainable environments. The emphasis of our work is to develop a zero-energy interactive ecosystem called an “eco-machine”. We setup a conceptual framework and investigate how to integrate sensors and actuators into green building tectonics to achieve a sustainable kinetic system. The operational scenario and prototype implementation are reported in this paper.
keywords	Eco-machine, Sustainable environment, Interactive architecture
series	CAADRIA
email
last changed	2022/06/07 07:57

_id	7939
authors	Wertheim, M.
year	1999
title	The Pearly Gates of Cyberspace: A History of Space from Dante to the Internet
source	Doubleday, Sydney
summary	Ever since the online world began, its inhabitants have puzzled over a fundamental question: What sort of space, exactly, is cyberspace? Is it just a metaphor, a vivid shorthand for the abstract complexity of computer networks? Or is it in some sense actually a space that parallels the one our bodies live in? Wertheim's impressively argued answer in The Pearly Gates of Cyberspace: A History of Space from Dante to the Internet is that it is both, and more. Cyberspace, she claims, at once exposes and fulfills a long-time cultural yearning for the type of immaterial space, the realm of the soul, that was written out of the West's cosmological picture when science displaced medieval theology.
series	other
last changed	2003/04/23 15:14

_id	acadia08_416
id	acadia08_416
authors	Wessel, Ginette; Remco Chang ;Eric Sauda
year	2008
title	Towards A New (Mapping Of The) City: Interactive, Data Rich Modes Of Urban Legibility
source	Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 416-421
doi	https://doi.org/10.52842/conf.acadia.2008.416
summary	The modern metropolis is a vast environment replete with physical elements and complex overlays of information. The city historically has been represented as a discrete physical object; this allocentric view has become less and less useful as a method of meaningfully orientation and navigation. Today, the city is defined by technologies and flows of information that constantly change our perceptions. While it has always been true that symbolic and religious dimensions have had a place in our understanding of the city, the complex and transitory nature of the contemporary city requires a representation that is interactive rather than static. This paper presents proposals for new interactive modes of urban legibility: data space, based on the work of Bill Mitchell and Robert Venturi; virtual and physical city, established from the work of Christine Boyer and Bill Mitchell; multi-nodal, derived from the work of Tarik Fathy and Thomas Sieverts; and information flows, founded on the work of Melvin Webber. Each approach is introduced with a conceptual overview, nascent examples and a schematic proposal for a computer based urban visualization. Based on this study, we conclude that two necessary aspects of any urban visualization are interactivity and the combination of data and geospatial information. Interactivity is necessary because of the fluid nature of our experience and the diversity of individual intentions in the contemporary city. The combination of data and geospatial information is necessary because the geometry of the city had become less important as a reliable indicator of meaning.
keywords	Information; Interactive; Mapping; Urbanism; Visualization
series	ACADIA
last changed	2022/06/07 07:57

_id	3037
authors	Wesselink, Wieger
year	1996
title	Variational modeling of curves and surfaces
source	Eindhoven University of Technology
summary	This dissertation is concerned with curve and surface modeling. In the past, curves and surfaces were modeled by first making wooden models, from which the final results were obtained by means of 'copy-milling'. Since the early 1960s, people have started to use computers to support the design of curves and surfaces. The increasing computing power and the increasing potential of graphical hardware in the last decade has opened many new possibilities for Computer Aided Geometric Design (CAGD). Especially the field of curve and surface modeling is rapidly evolving. This is reflected in the recently started series called 'Geometric Design Publications' that contains several books on curve and surface modeling. The most important applications of curve and surface modeling are found in industrial design, for instance in the automobile, aerospace and shipbuilding industries. An often encountered application is the interpolation and approximation of data with B-splines and Bézier curves and surfaces or other representation schemes. Another related application is variational curve and surface modeling, where one is looking for smooth curves and surfaces that satisfy a number of geometric constraints.
keywords	Computational Geometry
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	3b2a
authors	Westin, S., Arvo, J. and Torrance, K.
year	1992
title	Predicting reflectance functions from complex surfaces
source	Computer Graphics, 26(2):255-264, July 1992
summary	We describe a physically-based Monte Carlo technique for approximating bidirectional re•ectance distribution functions (BRDFs) for a large class of geometries by directly simulating optical scattering. The technique is more general than previous analytical models: it removes most restrictions on surface microgeometry. Three main points are described: a new representation of the BRDF, a Monte Carlo technique to estimate the coef•cients of the representation, and the means of creating a milliscale BRDF from microscale scattering events. These allowthe prediction of scattering from essentially arbitrary roughness geometries. The BRDF is concisely represented by a matrix of spherical harmonic coef•cients; the matrix is directly estimated from a geometric optics simulation, enforcing exact reciprocity. The method applies to roughness scales that are large with respect to the wavelength of light and small with respect to the spatial density at which the BRDF is sampled across the surface; examples include brushed metal and textiles. The method is validated by comparing with an existing scattering model and sample images are generated with a physically-based global illumination algorithm.
series	journal paper
last changed	2003/04/23 15:50

_id	ecaade2013_245
id	ecaade2013_245
authors	Weston, Mark and Greenberg, Dan
year	2013
title	Sweetgum Panels
source	Stouffs, Rudi and Sariyildiz, Sevil (eds.), Computation and Performance – Proceedings of the 31st eCAADe Conference – Volume 1, Faculty of Architecture, Delft University of Technology, Delft, The Netherlands, 18-20 September 2013, pp. 569-573
doi	https://doi.org/10.52842/conf.ecaade.2013.1.569
wos	WOS:000340635300059
summary	The paper describes a novel technique for creating flat, bi-layer, compliant mechanisms for adaptive building components to be used in solar shading. Micro-actuation of these periodic, flexible devices cause innumerable three-dimensional micro-loops to erupt in the panel surface, permitting passage of diffused light while maintaining visual privacy and shade.
keywords	Compliant mechanisms; biomimicry; passive energy design; solar shading; autonomous control; computer aided manufacture; parametric modeling.
series	eCAADe
email
last changed	2022/06/07 07:56

_id	ecaade2013_273
id	ecaade2013_273
authors	Weston, Mark and Greenberg, Dan
year	2013
title	Passive Energy Devices in Ceramics
source	Stouffs, Rudi and Sariyildiz, Sevil (eds.), Computation and Performance – Proceedings of the 31st eCAADe Conference – Volume 2, Faculty of Architecture, Delft University of Technology, Delft, The Netherlands, 18-20 September 2013, pp. 147-151
doi	https://doi.org/10.52842/conf.ecaade.2013.2.147
wos	WOS:000340643600014
summary	Buildings with scales, buildings that sweat: this paper proposes two strategies for a materially grounded, performance-based architecture which leverages the strengths of computation and CNC fabrication against the basic properties of traditional ceramics.
keywords	Building performance, CNC tooling, computer aided manufacture, ceramics, passive energy design
series	eCAADe
email
last changed	2022/06/07 07:56

_id	sigradi2013_268
id	sigradi2013_268
authors	Weston, Mark
year	2013
title	Prime Negatives: Parametric Sponge-Forming and Slip Casting for Ceramics
source	SIGraDi 2013 [Proceedings of the 17th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-7051-86-1] Chile - Valparaíso 20 - 22 November 2013, pp. 396 - 399
summary	Traditional methods for slip casting require the creation of prototype “patterns” for the making of molds. Computer modeling, however, can be understood to produce virtual positives, thereby suggesting a CNC production focused on the creation of negatives, or molds, without the need for a physical pattern. Three experiments in slip casting for ceramics are examined as a means of producing production parts without first making prototype patterns in the positive. Two techniques leverage computer modeling and CNC tools to directly produce formwork for casting positives, while the third technique uses a lost positive formwork for production of the final part.
keywords	Ceramics; Digital fabrication; CNC; Computer aided manufacture; Parametric modeling
series	SIGRADI
email
last changed	2016/03/10 10:03

_id	acadia08_222
id	acadia08_222
authors	Westre, Aaron
year	2008
title	Complexity Machine 1: A 3D Modeling Application Implementing Behavioral Simulation
source	Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 222-229
doi	https://doi.org/10.52842/conf.acadia.2008.222
summary	Complexity Machine 1 is a software application developed by the author as a Master of Architecture thesis project at the University of Minnesota. The software acts as a platform for exploring three dimensional form produced via behavioral simulation. Specifically, the behaviors are modeled on emergent group dynamics found commonly in nature such as flocking, chasing, and evading. Though various commercial softwares and numerous small-scale architectural projects exist in this area, Complexity Machine 1 is intended as a freely available and generic platform for exploring the formal implications of these emergent behaviors. The simulated behaviors are governed by a variety of parameters and a set of eight simple rules. Formal results are influenced by these parameters and rules; along with scale, color, and geometric settings. The flexibility of the software allows users to investigate a vast array of potential forms, adjust settings in real time, and export the results for further manipulation. Complexity Machine 1 continues to be refined and improved towards the goal of providing an easy to use platform to designers for exploring forms that emerge from complex group behavior.
keywords	Behavior; Complexity; Emergence; Flocking; Simulation
series	ACADIA
last changed	2022/06/07 07:57

_id	850a
authors	Wexelblat, A. (Ed.)
year	1993
title	Virtual Reality - Applications and Explorations
source	Academic Press Professional
summary	Virtual and Artificial Reality have become in the last few years one of the major new hype words. Subsequently there has been a plethora of glossy books and droll conference proceedings describing various systems and hardware implementation problems. As has always been discovered in computer science the major effort is in designing and building the software applications. Alan's aim has been to ignore the hardware side and concentrate on the far larger and almost impossible problem of what to do with it. This book is a collection of ten essays trying to look slightly into the future and define actual uses for Virtual Reality kits rather than showing off expensive hardware. This has resulted in a series of topics, each defines a different interface problem between the user and machine which may have some solution by using Virtual Reality. Even though the topics vary, at times drastically, Alan has managed to use editorial selection very well intertwining them into a reasonably coherent whole. The scope is too large for any single book to cover in any detail and as is inevitable important topics for example military and medicine have been excluded. Topics chosen range from traditional computer information database visualisation to planetary exploration to the Virtual Reality version of the music video and literacy in cyberspace.
series	other
last changed	2003/04/23 15:14

_id	02c6
authors	Wheeler, B.J.Q
year	1986
title	A Unified Model for Building
source	Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 200-231
summary	It is commonly recognized that the time-honoured procedure for preparing an architectural design for building on site is inefficient. Each member of a team of consultant professionals makes an independently documented contribution. For a typical project involving an architect and structural, electrical, mechanical and public services engineers there will be at least five separate sets of general- arrangement drawings, each forming a model of the building, primarily illustrating one discipline but often having to include elements of others in order to make the drawing readable. For example, an air-conditioning duct-work layout is more easily understood when superimposed on the room layout it serves which the engineer is not responsible for but has to understand. Both during their parallel evolution and later, when changes have to be made during the detailed design and production drawing stages, it is difficult and time consuming to keep all versions coordinated. Complete coordination is rarely achieved in time, and conflicts between one discipline and another have to be rectified when encountered on site with resulting contractual implications. Add the interior designer, the landscape architect and other specialized consultants at one end of the list and contractors' shop drawings relating to the work of all the consultants at the other, and the number of different versions of the same thing grows, escalating the concomitant task of coordination. The potential for disputes over what is the current status of the design is enormous, first, amongst the consultants and second, between the consultants and the contractor. When amendments are made by one party, delay and confusion tend to follow during the period it takes the other parties to update their versions to include them. The idea of solving this problem by using a common computer-based model which all members of the project team can directly contribute to is surely a universally assumed goal amongst all those involved in computer-aided building production. The architect produces a root drawing or model, the 'Architect's base plan', to which the other consultants have read-only access and on top of which they can add their own write-protected files. Every time they access the model to write in the outcome of their work on the project they see the current version of the 'Architect's base plan' and can thus respond immediately to recent changes and avoid wasting time on redundant work. The architect meanwhile adds uniquely architectural material in his own overlaid files and maintains the root model as everybody's work requires. The traditional working pattern is maintained while all the participants have the ability to see their colleagues, work but only make changes to those parts for which they are responsible.
series	CAAD Futures
last changed	1999/04/03 17:58

_id	2344
authors	White, Richard
year	1991
title	Recognizing Structures: Some Problems in Reasoning with Drawings
source	Computer Aided Architectural Design Futures: Education, Research, Applications [CAAD Futures ‘91 Conference Proceedings / ISBN 3-528-08821-4] Zürich (Switzerland), July 1991, pp. 381-394
summary	This paper describes work on our current project aimed at developing a generalized system for performing automated reasoning tasks in various domains, using information extracted from drawings. It briefly describes the MOLE representation system, a frame-like formalism which can be used to build both description and inheritance hierarchies. The use of MOLE for representing graphical objects as well as the objects they represent is also described.The paper goes on to discuss some of the problems faced in the development of systems which can perform reasoning tasks on such representations. In particular, problems arising from the need to map the structures required by the application domain to the drawing description are outlined and a model which adapts existing Artificial Intelligence (AI) techniques to solve these problems is proposed.
series	CAAD Futures
last changed	1999/04/07 12:03

_id	cf2007_115
id	cf2007_115
authors	Whiting, Emily; Jonathan Battat and Seth Teller
year	2007
title	Topology of Urban Environments: Graph construction from multi-building floor plan data
source	Computer Aided Architectural Design Futures / 978-1-4020-6527-9 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Futures / 978-1-4020-6527-9] Sydney (Australia) 11–13 July 2007, pp. 115-128
summary	This paper introduces a practical approach to constructing a hybrid 3D metrical–topological model of a university campus or other extended urban region from labeled 2D floor plan geometry. An exhaustive classification of adjacency types is provided for a typical infrastructure, including roads, walkways, green-space, and detailed indoor spaces. We extend traditional lineal techniques to 2D open spaces, incorporating changes in elevation. We demonstrate our technique on a dataset of approximately 160 buildings, 800 floors, and 44,000 spaces spanning indoor and outdoor areas. Finally, we describe MITquest, a web application that generates efficient walking routes.
series	CAAD Futures
email
last changed	2007/07/06 12:47

_id	c20d
authors	Wie, Zhao Ji
year	1996
title	Interactive Optimization: A Practical CAAD Model
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. 75-80
doi	https://doi.org/10.52842/conf.caadria.1996.075
summary	In recent years, the CAAD technique become more and more popular in most of architectural design institutions in China. Then, like in many other countries, CAAD in China is mainly used for making working drawings and perspectives, a drawing tool not a design tool, and the traditional architectural design process still remain unchanged. The decision making and layout approaching of the designs are based on the skills and experiences of architects, lacking of effective means for architects making design analysis and evaluation during designing.
series	CAADRIA
last changed	2022/06/07 07:57

_id	acadia09_216
id	acadia09_216
authors	Wiebe, Kimberly; Kensek, Karen; Schiler, Marc
year	2009
title	SonoranSystems: Building Simulation Modeling Using a Crassulacean Acid Metabolism Analogy
source	ACADIA 09: reForm( ) - Building a Better Tomorrow [Proceedings of the 29th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-9842705-0-7] Chicago (Illinois) 22-25 October, 2009), pp. 216-225
doi	https://doi.org/10.52842/conf.acadia.2009.216
summary	Biomimicry is one source of inspiration for innovation in the passive thermal design of buildings and of strategies that decrease the need for auxiliary heating and cooling systems. This paper explores the potential for using analogies drawn from Crassulacean acid metabolism (CAM) to create a software program that simulates selected building materials to predict temporal building temperature variations.
keywords	Simulation, performance, solar, thermal design, parametric design
series	ACADIA
type	Normal paper
email
last changed	2022/06/07 07:57

_id	2006_604
id	2006_604
authors	Wiedmer, Martin; Doris Agotai; Rolf Lenzin and Fabian Kempter
year	2006
title	Compositing Spaces - The Transferring of Space Relevant Film Elements into Computer-Generated Architecture-Related Animation
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 604-607
doi	https://doi.org/10.52842/conf.ecaade.2006.604
summary	The representation of architecture is to an increasing extent expressed by means of computer-generated animation. The medium of architectural animation thus gets closer to the film without taking into consideration its specific design possibilities. Here the research project “Compositing Spaces” starts. It reveals in which fields architectural animation can get an impact from filmic design instruments. On behalf of film analysis precise stage directions to the virtual camera could be developed. In collaboration with visualizers, film professionals and psychologists the project has taken an unexpected turn and led to a form of expression that involves compositing technique. The project takes with the animation of high-resolution visualizations a most promising and low-priced approach.
keywords	architectural animation; film; spatial perception; rendering; compositing
series	eCAADe
email
last changed	2022/06/07 07:57

_id	ef47
authors	Wiegand, T.
year	1996
title	Interactive Rendering of CSG Models
source	Computer Graphics Forum, Vol. 15, No. 4.
summary	We describe a CSG rendering algorithm that requires no evaluation of the CSG tree beyond normalization and pruning. It renders directly from the normalized CSG tree and primitives described (to the graphics system) by their facetted boundaries. It behaves correctly in the presence of user defined, "near'' and "far'' clipping planes. It has been implemented on standard graphics workstations using Iris GL and OpenGL graphics libraries. Modestly sized models can be evaluated and rendered at interactive (less than a second per frame) speeds. We have combined the algorithm with an existing B-rep based modeller to provide interactive rendering of incremental updates to large models.
series	journal
more	http://www.arct.cam.ac.uk/research/pubs/
last changed	2003/05/15 10:29

_id	acadia05_246
id	acadia05_246
authors	Wierzbicki-Neagu, Madalina
year	2005
title	Unfolding Architecture – Study, Development and Application of New Kinetic Structure Topologies
source	Smart Architecture: Integration of Digital and Building Technologies [Proceedings of the 2005 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 0-9772832-0-8] Savannah (Georgia) 13-16 October 2005, pp. 246-253
doi	https://doi.org/10.52842/conf.acadia.2005.246
summary	Advances in design tools and material engineering open new possibilities for architectural structures that may respond better to the demands of the increasing density of development, better space management and lesser environmental impact. Folding structures that provide adjustable on demand configurations can be effectively conceptualized if appropriate interdisciplinary expertise is brought together. Kinematic chain geometries borrowed from traditional mechanics can be developed into a variety of topologies suitable for architectural structures. Rectilinear deformable grids can provide the functionality of expanding and collapsing as well as the ability to be infinitely arrayed. Converging grids allow for circular arrays and fan like folding. The challenge is to translate a two-dimensional chain concept into a three-dimensional array of interleaved frames that form a stable structure and can bear the necessary loads. In order to complement the folding structure with the corresponding foldable shell, the algebra of rigid folds can be adapted to develop viable geometrical concepts. The demands of the design process needed to develop kinetic structures will expand the traditional architectural workflow to include parametric modeling tools that are common in mechanical engineering. Folding architectural structures require, besides traditional architectural layout development, parametric assembly capabilities and motion analysis typical for mechanical design. Potential application development, marketing, building code changes and effective multidisciplinary collaboration must take place for kinetic structures to enter the architectural mainstream.
series	ACADIA
email
last changed	2022/06/07 07:57

_id	acadia07_250
id	acadia07_250
authors	Wierzbicki-Neagu, Madalina; de Silva, Clarence W.
year	2007
title	Development of Design Workflows for Kinetic Structures Using Fuzzy Logic
source	Expanding Bodies: Art • Cities• Environment [Proceedings of the 27th Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-7 October 2007, 250-261
doi	https://doi.org/10.52842/conf.acadia.2007.250
summary	Kinetic structures offer the means to significantly expand the functional and performance features of traditionally static architectural solutions. However, the added element of motion creates considerable challenges during conceptualization and introduction into existing design workflows. Rigidly foldable shells offer tremendous potential for developing kinetic architectural structures. They require few support points, eliminate sliding overlaps and are relatively easy to mock up as initial concepts. Achieving the desired motion range, however, requires a significant design effort. If performed manually, the motion optimization is tedious and unpredictable. This paper examines possible optimization algorithmic strategies with the use of fuzzy logic. Specifically the paper focuses on the application of fuzzy logic as a tool for effectively negotiating modifications of complex linked geometries while using intuitive, high level statements and directives. Highlighted is the potential of fuzzy logic-based algorithms as tools that can help the transition of existing design workflows into environments that can handle extended challenges involving kinetic geometries.
series	ACADIA
email
last changed	2022/06/07 07:57

_id	8aab
authors	Wiezel, Avi and Becker, Rachel
year	1992
title	Integration of Performance Evaluation in Computer Aided Design
source	New York: John Wiley & Sons, 1992. pp. 171-181 : ill. includes bibliography
summary	An integrated computerized system for evaluation of the overall performance of a building was developed. The system exemplifies the capability of appropriate CAD techniques to upgrade the decision making process and the quality of the design. This paper describes the specific problems arising from the integration of the performance evaluation within the existing CAAD process
keywords	CAD, systems, evaluation, civil engineering, integration, performance, building
series	CADline
last changed	2003/06/02 13:58

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