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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	ddss2008-33
id	ddss2008-33
authors	Charlton, James A.; Bob Giddings and Margaret Horne
year	2008
title	A survey of computer software for the urban designprocess
source	H.J.P. Timmermans, B. de Vries (eds.) 2008, Design & Decision Support Systems in Architecture and Urban Planning, ISBN 978-90-6814-173-3, University of Technology Eindhoven, published on CD
summary	Urban design is concerned with the shape, the surface and the physical arrangement of all kinds of urban elements, the basic components that make up the built environment, at the level of buildings, spaces and human activities. It is also concerned with the non-visual aspects of the environment, such as noise, wind and temperature and humidity. The city square is a particular urban element which can take many forms and its geometrical relationships such as maximum dimensions, ratio of width to length and building height to length have been analysed for centuries (Alberti 1475), (Vitruvius 1550), (Sitte 1889), (Corbett 2004). Within the current urban design process there are increasing examples of three dimensional computer representations which allow the user to experience a visual sense of the geometry of city squares in an urban landscape. Computer-aided design and Virtual Reality technologies have recently contributed to this visual assessment, but there have been limited attempts at 3D computer representations which allow the user to experience a greater sense of the urban space. This paper will describe a survey of computer tools which could support a more holistic approach to urban design and which could be used to simulate a number of urban texture and urban quality aspects. It will provide a systematic overview of currently available software that could support the simulation of building density, height, colour and style as well as conditions relating to noise, shading, heat, natural and artificial light. It will describe a methodology for the selection and filtering of appropriate computer applications and offer an initial evaluation of these tools for the analysis and representation of the three-dimensional geometry, urban texture and urban quality of city centre spaces. The paper is structured to include an introduction to the design criteria relating to city centre spaces which underpins this research. Next the systematic review of computer software will be described, and selected tools will undergo initial evaluation. Finally conclusions will be drawn and areas for future research identified.
keywords	Urban design, Software identification, 3D modelling, Pedestrian modelling, Wind modelling, Noise mapping, Thermal comfort, VR Engine
series	DDSS
last changed	2008/09/01 17:06

_id	acadia16_140
id	acadia16_140
authors	Nejur, Andrei; Steinfeld, Kyle
year	2016
title	Ivy: Bringing a Weighted-Mesh Representations to Bear on Generative Architectural Design Applications
source	ACADIA // 2016: POSTHUMAN FRONTIERS: Data, Designers, and Cognitive Machines [Proceedings of the 36th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-77095-5] Ann Arbor 27-29 October, 2016, pp. 140-151
doi	https://doi.org/10.52842/conf.acadia.2016.140
summary	Mesh segmentation has become an important and well-researched topic in computational geometry in recent years (Agathos et al. 2008). As a result, a number of new approaches have been developed that have led to innovations in a diverse set of problems in computer graphics (CG) (Sharmir 2008). Specifically, a range of effective methods for the division of a mesh have recently been proposed, including by K-means (Shlafman et al. 2002), graph cuts (Golovinskiy and Funkhouser 2008; Katz and Tal 2003), hierarchical clustering (Garland et al. 2001; Gelfand and Guibas 2004; Golovinskiy and Funkhouser 2008), primitive fitting (Athene et al. 2004), random walks (Lai et al.), core extraction (Katz et al.) tubular multi-scale analysis (Mortara et al. 2004), spectral clustering (Liu and Zhang 2004), and critical point analysis (Lin et al. 20070, all of which depend upon a weighted graph representation, typically the dual of a given mesh (Sharmir 2008). While these approaches have been proven effective within the narrowly defined domains of application for which they have been developed (Chen 2009), they have not been brought to bear on wider classes of problems in fields outside of CG, specifically on problems relevant to generative architectural design. Given the widespread use of meshes and the utility of segmentation in GAD, by surveying the relevant and recently matured approaches to mesh segmentation in CG that share a common representation of the mesh dual, this paper identifies and takes steps to address a heretofore unrealized transfer of technology that would resolve a missed opportunity for both subject areas. Meshes are often employed by architectural designers for purposes that are distinct from and present a unique set of requirements in relation to similar applications that have enjoyed more focused study in computer science. This paper presents a survey of similar applications, including thin-sheet fabrication (Mitani and Suzuki 2004), rendering optimization (Garland et al. 2001), 3D mesh compression (Taubin et al. 1998), morphin (Shapira et al. 2008) and mesh simplification (Kalvin and Taylor 1996), and distinguish the requirements of these applications from those presented by GAD, including non-refinement in advance of the constraining of mesh geometry to planar-quad faces, and the ability to address a diversity of mesh features that may or may not be preserved. Following this survey of existing approaches and unmet needs, the authors assert that if a generalized framework for working with graph representations of meshes is developed, allowing for the interactive adjustment of edge weights, then the recent developments in mesh segmentation may be better brought to bear on GAD problems. This paper presents work toward the development of just such a framework, implemented as a plug-in for the visual programming environment Grasshopper.
keywords	tool-building, design simulation, fabrication, computation, megalith
series	ACADIA
type	paper
email
last changed	2022/06/07 07:58

_id	b92a
id	b92a
authors	Peter Ferschin
year	2004
title	PERCEPTION BASED ILLUSTRATION METHODS
source	Proceedings of the Fourth International Conference of Mathematics & Design, Special Edition of the Journal of Mathematics & Design, Volume 4, No.1, pp. 283-296.
summary	This paper describes some visual phenomena of human perception in the context of computer based Illustration. Some of these phenomena of the human visual system will be used to introduce an illustrative rendering style for three-dimensional line drawings with enhanced depth cuing to visualize spatial properties of three-dimensional objects. The additional purpose of this paper is to inspire the study of human perception more deeply to derive new non-photorealistic rendering methods that can enhance the visualization of complex spatial concepts and its three-dimensional characteristics.
keywords	Perception, Non-Photorealistic Rendering, Illustration, Depth Cuing.
series	other
type	normal paper
email
last changed	2005/04/08 17:10

_id	acadia04_100
id	acadia04_100
authors	Liapi, Katherine
year	2004
title	A computer Based System for the Design and Fabrication of Tensegrity Structures
source	Fabrication: Examining the Digital Practice of Architecture [Proceedings of the 23rd Annual Conference of the Association for Computer Aided Design in Architecture and the 2004 Conference of the AIA Technology in Architectural Practice Knowledge Community / ISBN 0-9696665-2-7] Cambridge (Ontario) 8-14 November, 2004, 100-109
doi	https://doi.org/10.52842/conf.acadia.2004.100
summary	Tensegrity structures are composed of tension compression components, where the compression components (bars) are discontinuously enclosed within continuous tensile components (cables). From an engineering point of view, a tensegrity structure is characterized by geometric non-linearity and large displacements under loading. Therefore, its prestressed shape and deformation under loading are the result of the combined effect of the geometric parameters that determine the initial configuration of the structure, the level of prestress applied to cables, and the material properties of the component members of the structure. A method for generating the initial geometric configuration of tensegrity structures composed of tensegrity units and a parametric expression of this geometry have already been developed. A novel technology that makes possible the construction of tensegrity structures from the on-site assembly of deployable tensegrity units, which are furnished with a simple mechanism that permits bar-elongation, and, as a result, an increase of the prestress applied to the cables of each unit, is also under development. Also under development is a static analysis method that takes into account the above method for prestressing cables. This paper discusses the features of a system that supports the combined geometric and structural design of tensegrity structures, and integrates a graphical interface to display: a) models of initial geometry, b) geometry of the structure after prestress and loading are applied, and c) magnitude of forces applied to the structure’s component members (bars and cables). The system also provides numerical data to be used in component fabrication, and is therefore expected to become a very valuable tool for the design and construction of tensegrity structures.
series	ACADIA
last changed	2022/06/07 07:59

_id	bfa9
id	bfa9
authors	Mahiques, Myriam Beatriz
year	2004
title	BUENOS AIRES: URBAN QUADRILLE AND FRACTALITY UNDER THE LIGHT OF SOCIAL ASPECTS
source	Proceedings of the Fourth International Conference of Mathematics & Design, Special Edition of the Journal of Mathematics & Design, Volume 4, No.1, pp. 55-59.
summary	Investigations about urban form are developed in many directions, being the history branch the strongest. It is based on the importance of forms created by previous generations. So, urban morphologists must examine the inhabitants and the processes that originate the urban form. In our discipline, ´´epistemological physicalism´´ is studied through the theory of complex systems and chaos theory. The resultant shape is obtained by selecting some elements of the abstract structure considered (non Euclidean geometry) and simulation software is used for experimentation, like L Systems, Diffusion Limited Aggregated, Cellular Automata. Then we have to discover what is veiled at first sight and to reflect on the optimal model for the community.
series	other
type	normal paper
email
last changed	2005/04/07 12:48

_id	2004_374
id	2004_374
authors	Hannibal, C., Brown, A. and Knight, M.
year	2004
title	How Useful is the Digital Sketch?
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 374-379
doi	https://doi.org/10.52842/conf.ecaade.2004.374
summary	This paper presents an experimental approach that examines human response to three virtual representations (sketchy line, non-photorealistic and near-photorealistic) of three similar architectural schemes (in terms of concept, context and scale) within a non-immersive large-screen projected virtual environment. Participant response is recorded utilising the factors of detail, spatial understanding, character and presence. By comparing data it should be possible to draw conclusions about aspects particular to non-immersive Virtual Reality (VR) activity as a means of architectural representation.
keywords	Non-Immersive Virtual Environments, Digital Sketching, Non-Photorealism
series	eCAADe
last changed	2022/06/07 07:50

_id	ijac20032201
id	ijac20032201
authors	Mahalingam, Ganapathy; Kavasseri, Rajesh G.
year	2004
title	Improving Objective Digital Images with Neuronal Processing: A Computational Approach
source	International Journal of Architectural Computing vol. 2 - no. 2
summary	This paper describes an experiment where an imagerecorded with a digital camera is processed using anelectro-physiological model of a neuron. Theluminosity level of each pixel of the source image istreated as the stimulus for an individual neuron, andthe source image is transformed into a responseimage based on the processing behavior of theHodgkin-Huxley neuronal model. It is seen thattransformation of the image through neuronalprocessing yields (i) more evenly balanced levels ofluminosity and (ii) a more ‘subjective’ rendering of theenvironment than what was photographed with thedigital camera.The CCD (charge coupled device) –based digital camera reveals its limitation as a linearrecording device that does not have a balanceddynamic range.The neuronal processing of the imageadds non-linearity and a balanced range to theluminosity levels in the image, rendering it closer to a‘subjective’ perception of the scene.
series	journal
email
more	http://www.multi-science.co.uk/ijac.htm
last changed	2007/03/04 07:08

_id	2004_325
id	2004_325
authors	Sarawgi, Tina
year	2004
title	Using Computers as a Spatial Visualization and Design Exploration Medium
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 325-332
doi	https://doi.org/10.52842/conf.ecaade.2004.325
summary	The constant advances in the use of computers to simulate light over the past few decades, has led computer-aided rendering to become increasingly photorealistic. However, the rendering is still processor-intensive and time-consuming, difficult to generate in real time. Design students need to be well versed in the depiction of the effects of light in an environment, crucial to spatial visualization. With increasing computing power, advanced algorithms and increased realism, the central pedagogical issue in their use is not what computers can do for us today, but what and how we can make them do what we do better. We have to be careful in not getting seduced by the advancing technology but use it innovatively to build students into better designers. This paper discusses a project demonstrating the apparent potential of computers for spatial visualization and design exploration of light and space, in their present stage. The project shows a departure from the traditional methods of using computers or of teaching lighting in a design school. Computers are used by students to especially create flashy imagery. On the other hand, lighting is explained in clinical terms without exploration of its experiential qualities. This exercise helped the students to develop a better understanding of the physics of light from the method most familiar and expected of students – visual. The project deems it more important to have a quick means to produce an overview of the implication of the design choices than to provide precise information regarding a hypothetical final solution. Hence, after creating the lighting in the space based on the desired experiential qualities, the illumination can be conveyed to a lighting expert for detailed quantitative computations. The project results are shown and outcomes discussed.
keywords	Visualization, Light, Space, Digital Technology, Pedagogy
series	eCAADe
last changed	2022/06/07 07:57

_id	sigradi2004_192
id	sigradi2004_192
authors	Adrián J. Levy
year	2004
title	Espacios 4-d animados - Arquitectura de la música [4-D Animated Spaces - The Architecture of Music]
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	This project involves the creation of an architecture of music which may be defined as a series of interdisciplinary steps which seek to generate four-dimensional virtual spaces for the materialization of music. This materialization uses music as its .genetic information ., the virtual space as its medium, and the execution time of the musical piece as the fourth dimension to a three-dimensional virtual space. Within this space, each instrument.s execution is represented by a shape whose properties undergo changes resulting from the musical information. Through the use of new Virtual Reality techniques, we will soon have the possibility to be inside the music, as a habitable place. The achievement of this project is to provide the opportunity to experience this representation through virtual animation.
keywords	Architecture of music, navigable music, cyberspace, four-dimensional, animation
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ascaad2004_paper4
id	ascaad2004_paper4
authors	Ahmad, Sumbul and Scott C. Chase
year	2004
title	Design Generation of the Central Asian Caravanserai
source	eDesign in Architecture: ASCAAD's First International Conference on Computer Aided Architectural Design, 7-9 December 2004, KFUPM, Saudi Arabia
summary	Challenges for the study of Islamic architecture include its abundance and diversity in expression and its classification based on distinct functional or stylistic types. We address these issues by presenting shape grammars as a methodology for the analysis and design generation of Islamic architecture, with a specific example in the form of a parametric shape grammar for central Asian caravanserais. The grammar is developed by identifying distinct design types. Shape rules are created based on a study of the spatial elements and their organisation in the designs. We illustrate the utility of the grammar by deriving an extant design and as well as, previously unknown designs. We conclude by discussing possible extensions to the current grammar and future work involving the development of a grammar based framework for the comparative analysis of medieval Islamic courtyard buildings.
series	ASCAAD
email
last changed	2007/04/08 19:47

_id	avocaad_2003_17
id	avocaad_2003_17
authors	Anna Maria Chrabin, Jaroslaw Szewczyk and Herman Neuckermans
year	2003
title	A Critical Evaluation of Early Stages Software in its Capacity of Coping with Contextual Issues
source	LOCAL VALUES in a NETWORKED DESIGN WORLD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Stellingwerff, Martijn and Verbeke, Johan (Eds.), (2004) DUP Science - Delft University Press, ISBN 90-407-2507-1.
summary	In this paper we analyse critically early design stages software in its capacity of coping with contextual data at large (i.e. representing cultural, aesthetical context, etc.). We identified 5 categories of early stages software: geometry based graphic editors, evaluation architectural software, generative and shape-grammar based systems, evolutionary systems and other systems. Calling the object under creation during of the early stages a CAD conceptual model, we will investigate to what extend this software allows the architect to experience and represent the context in which a design is situated. Especially we will focus on its capacity to allow interaction, playful interaction on our way to the design. Designers, and particularly architects, interact with the local context similarly to interacting in a game: the context influences the users’ decisions, surprises them and causes permanent changes to their ways of thinking. On the other hand, architects permanently shape and reshape the context, and reduce the context to a protean point of reference. Such behaviour characterises creative thinking that is crucial for the early stage of design. The investigation led us to the conclusions that the effective interactivity with the context needs simple rules, a plain interface and data reduced as simple as possible, especially when interaction with the context is performed during the early stages of a design process. The findings can be used in organising computer environments for early-stage design.
keywords	Architecture, Local values, Globalisation, Computer Aided Architectural Design
series	AVOCAAD
email
last changed	2006/01/16 21:38

_id	acadia04_088
id	acadia04_088
authors	Bechthold, Martin
year	2004
title	Digital Design and Fabrication of Surface Structures
source	Fabrication: Examining the Digital Practice of Architecture [Proceedings of the 23rd Annual Conference of the Association for Computer Aidd Design in Architecture and the 2004 Conference of the AIA Technology in Architectural Practice Knowledge Community / ISBN 0-9696665-2-7] Cambridge (Ontario) 8-14 November, 2004, 88-99
doi	https://doi.org/10.52842/conf.acadia.2004.088
summary	This paper presents a study in digital design and manufacturing of shells, which are material-efficient systems that generate their load-bearing capacity through curvature. Their complex shapes are challenging to build, and the few current shell projects employ the same shape repetitively in order to reduce the cost of concrete formwork. Can digital design and manufacturing technology make these systems suitable for the needs of the 21st century? The research developed new digitally-driven fabrication processes for Wood-Foam Sandwich Shells and Ferrocement-Concrete Sandwich Shells. These are partially pre-fabricated in order to allow for the application of Computer-Numerically Controlled (CNC) technology. Sandwich systems offer advantages for the digitally-enabled construction of shells, while at the same time improving their structural and thermal performance. The research defines design and manufacturing processes that reduce the need for repetition in order to save costs. Wood-Foam Sandwich shells are made by laminating wood-strips over a CNC-milled foam mold that eventually becomes the structural sandwich core. For Ferrocement-Concrete sandwich shells, a two-stage process is presented: pre-fabricated ferrocement panels become the permanent formwork for a cast-in-place concrete shell. The design and engineering process is facilitated through the use of parametric solid modeling environments. Modeling macros and integrated Finite-Element Analysis tools streamline the design process. Accuracy in fabrication is maintained by using CNC techniques for the majority of the shaping processes. The digital design and manufacturing parameters for each process are verified through design and fabrication studies that include prototypes, mockups and physical scale models.
keywords	Shell, Pre-Fabrication, Prototype, Custom-Manufacturing, Simulation
series	ACADIA
email
last changed	2022/06/07 07:54

_id	eaea2003_11-bremer-sander
id	eaea2003_11-bremer-sander
authors	Bremer, S. and Sander, H.
year	2004
title	View from the Road: Environmental Simulation for the Fractal City of Rhine Ruhr
source	Spatial Simulation and Evaluation - New Tools in Architectural and Urban Design [Proceedings of the 6th European Architectural Endoscopy Association Conference / ISBN 80-227-2088-7], pp. 43-47
summary	Highway seems to be more an issue of traffic planning than of urban design. But the highway can be a very important factor for the modern city pattern. Highways shape the spatial form of the fractal city. The modern highway can define new cores outside and “interior edges” within the city. Seen as a planning tool, highways are the great neglected opportunity in city and regional design. The 1st Architecture Biennial, 1ab, taking place from May 2003 to July 2003 in Rotterdam, explores the creative potentials of modern highways worldwide. An international research team discovered the spatial functions of highways in modern agglomerations. This lecture will give an overview of the results of the worldwide analyses and the design projects that had been undertaken. Both authors are members of the German research team. The German team examined the A 42 running through the Ruhrgebiet, a former coal and steal area in western Germany. The Ruhr Area is converting from an industrially orientated region to an agglomeration of high technology and science. But the regional image remains the same due to the fact that the changes cannot be seen, neither physically, nor from the road. Here, the highway could be used as a catalyst supporting and structuring the spatial changes to make them more legible for the people of Rhine-Ruhr. The nature becomes the most important tool of highway design. Landscape forms a linkage between the different cities of the region. Together with the A 40 and other local highways the region becomes the most important (and largest) public space of the new Rhine-Ruhr. The highway seen as a work of urban art can be designed only from the perspective of the driving car.
series	EAEA
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	sigradi2006_e183a
id	sigradi2006_e183a
authors	Costa Couceiro, Mauro
year	2006
title	La Arquitectura como Extensión Fenotípica Humana - Un Acercamiento Basado en Análisis Computacionales [Architecture as human phenotypic extension – An approach based on computational explorations]
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 56-60
summary	The study describes some of the aspects tackled within a current Ph.D. research where architectural applications of constructive, structural and organization processes existing in biological systems are considered. The present information processing capacity of computers and the specific software development have allowed creating a bridge between two holistic nature disciplines: architecture and biology. The crossover between those disciplines entails a methodological paradigm change towards a new one based on the dynamical aspects of forms and compositions. Recent studies about artificial-natural intelligence (Hawkins, 2004) and developmental-evolutionary biology (Maturana, 2004) have added fundamental knowledge about the role of the analogy in the creative process and the relationship between forms and functions. The dimensions and restrictions of the Evo-Devo concepts are analyzed, developed and tested by software that combines parametric geometries, L-systems (Lindenmayer, 1990), shape-grammars (Stiny and Gips, 1971) and evolutionary algorithms (Holland, 1975) as a way of testing new architectural solutions within computable environments. It is pondered Lamarck´s (1744-1829) and Weismann (1834-1914) theoretical approaches to evolution where can be found significant opposing views. Lamarck´s theory assumes that an individual effort towards a specific evolutionary goal can cause change to descendents. On the other hand, Weismann defended that the germ cells are not affected by anything the body learns or any ability it acquires during its life, and cannot pass this information on to the next generation; this is called the Weismann barrier. Lamarck’s widely rejected theory has recently found a new place in artificial and natural intelligence researches as a valid explanation to some aspects of the human knowledge evolution phenomena, that is, the deliberate change of paradigms in the intentional research of solutions. As well as the analogy between genetics and architecture (Estévez and Shu, 2000) is useful in order to understand and program emergent complexity phenomena (Hopfield, 1982) for architectural solutions, also the consideration of architecture as a product of a human extended phenotype can help us to understand better its cultural dimension.
keywords	evolutionary computation; genetic architectures; artificial/natural intelligence
series	SIGRADI
email
last changed	2016/03/10 09:49

_id	041029_duerr-c
id	041029_duerr-c
authors	Dürr, Christian
year	2004
title	MORPHOGENESIS – EVOLUTION OF SHAPE; IMAGINATION AMPLIFIER VERSION 1.0
source	ETH postgraduate studies final thesis, Zurich
summary	The advent of computer technologies in the design-processes has already taken place, is meanwhile ordinary. New design perspectives are opened, and an almost inexhaustable form repertoire is available, even buildable - ‘Nothing is impossible‘. This thesis work deals only with a small clip from there. Essentially it consists of two parts: » MORPHOGENESIS – Evolution of Shape « describes the present situation of generating shape with the help of computers. Some of the technologies that are used for, as comupter-morphing or evolutionary programming, are examined more closely here. »IMAGINATION AMPLIFIER Version 1.0« is an interactive Form-Generator for houses - a House-Machine. The program deals with the possibilities of interpolation and morphing between two, 3 dimensional, states (Startand Target-House) configured by the user. As an output–result, the generator depicts the put in number of steps in between, with characteristic values like cubical contents (V), surface quadrature (A) and the relation between V/A. All the results are stored in a database, where it is possible to select from for new morphing operations, to get in the end closer to a more optimized shape.
series	thesis:MSc
type	normal paper
last changed	2005/09/09 13:13

_id	041222_ebnoether-i
id	041222_ebnoether-i
authors	Ebnöther, If
year	2004
title	SkinChair
source	ETH postgraduate studies final thesis, Zurich
summary	The skin chair project is an exploration of some of the possibilities that CNC technologies offer for designers and makers. At the center of attention is the fascination with the possibility of small-scale, on-demand production without the need for large investments in tooling. A lot of work has already been done in this field. The skin chair project aims to examine a few aspects using specific tools available at ETH Hönggerberg. The idea for the skin chair emerged from a commercial project where I learnt how difficult it can be to manufacture a threedimensional seating surface for a chair in steel. The constructional concept of the skin chair is simple: two ribs at either side of the chair define the shape, a skin (a thin material) is wrapped around these thus a hollow volume is created. The simple principle lends itself to parameterisation and thus the creation of many variants of the intial design. In an attempt to approximate a real-life product scenario, a number of components of the workflow were prototyped.
series	thesis:MSc
last changed	2005/09/09 12:58

_id	sigradi2004_123
id	sigradi2004_123
authors	Elizabeth Bund y Patricia Recayte
year	2004
title	Temporalidad y movimiento en una experiencia proyectual digital [Temporality and Movement in a Digital Design Experience]
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	This paper proposes an analysis of resulting product of a didactical design experience produced into digital environment in architectural shape context. The line of argument is the study of temporality and movement as necessary conditions of shape to be experienced in two levels: the literal-objective and the phenomenic-perceptual. An hipermedia design proceeding of interconnected character, not lineal, with superposition of project process and presentation strategies in hipertextual organization has been developed. The student involves himself as producer-operator, into rational and intuitive levels simultaneously, to generate and simulate, conditions and architectural experiences by using digital media. As a result of this experience abilities and proper worths of the digital media are recognized, that encourage reflection and creativity, allowing to increase critical and aesthetic capabilities in producing the architectural work.
keywords	Time, movement, architecture, didactical experience
series	SIGRADI
email
last changed	2016/03/10 09:51

_id	sigradi2004_067
id	sigradi2004_067
authors	Gabriela Celani
year	2004
title	The symmetry exercise: Using an old tool in a new way
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	The present paper describes an exercise for architecture students that has two objectives: (1) to present the different types of symmetry and introduce the importance of symmetric design in graphic and architectural composition; and (2) to describe an example of how common CAD tools can be customized and turned into specific symmetric design tools. The final aim is to show how computer drafting can be more efficient than hand drafting in certain cases, especially when the computer.s real-time shape computation abilities can be used to the designer.s help.
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	sigradi2006_e028c
id	sigradi2006_e028c
authors	Griffith, Kenfield; Sass, Larry and Michaud, Dennis
year	2006
title	A strategy for complex-curved building design:Design structure with Bi-lateral contouring as integrally connected ribs
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 465-469
summary	Shapes in designs created by architects such as Gehry Partners (Shelden, 2002), Foster and Partners, and Kohn Peterson and Fox rely on computational processes for rationalizing complex geometry for building construction. Rationalization is the reduction of a complete geometric shape into discrete components. Unfortunately, for many architects the rationalization is limited reducing solid models to surfaces or data on spread sheets for contractors to follow. Rationalized models produced by the firms listed above do not offer strategies for construction or digital fabrication. For the physical production of CAD description an alternative to the rationalized description is needed. This paper examines the coupling of digital rationalization and digital fabrication with physical mockups (Rich, 1989). Our aim is to explore complex relationships found in early and mid stage design phases when digital fabrication is used to produce design outcomes. Results of our investigation will aid architects and engineers in addressing the complications found in the translation of design models embedded with precision to constructible geometries. We present an algorithmically based approach to design rationalization that supports physical production as well as surface production of desktop models. Our approach is an alternative to conventional rapid prototyping that builds objects by assembly of laterally sliced contours from a solid model. We explored an improved product description for rapid manufacture as bilateral contouring for structure and panelling for strength (Kolarevic, 2003). Infrastructure typically found within aerospace, automotive, and shipbuilding industries, bilateral contouring is an organized matrix of horizontal and vertical interlocking ribs evenly distributed along a surface. These structures are monocoque and semi-monocoque assemblies composed of structural ribs and skinning attached by rivets and adhesives. Alternative, bi-lateral contouring discussed is an interlocking matrix of plywood strips having integral joinery for assembly. Unlike traditional methods of building representations through malleable materials for creating tangible objects (Friedman, 2002), this approach constructs with the implication for building life-size solutions. Three algorithms are presented as examples of rationalized design production with physical results. The first algorithm [Figure 1] deconstructs an initial 2D curved form into ribbed slices to be assembled through integral connections constructed as part of the rib solution. The second algorithm [Figure 2] deconstructs curved forms of greater complexity. The algorithm walks along the surface extracting surface information along horizontal and vertical axes saving surface information resulting in a ribbed structure of slight double curvature. The final algorithm [Figure 3] is expressed as plug-in software for Rhino that deconstructs a design to components for assembly as rib structures. The plug-in also translates geometries to a flatten position for 2D fabrication. The software demonstrates the full scope of the research exploration. Studies published by Dodgson argued that innovation technology (IvT) (Dodgson, Gann, Salter, 2004) helped in solving projects like the Guggenheim in Bilbao, the leaning Tower of Pisa in Italy, and the Millennium Bridge in London. Similarly, the method discussed in this paper will aid in solving physical production problems with complex building forms. References Bentley, P.J. (Ed.). Evolutionary Design by Computers. Morgan Kaufman Publishers Inc. San Francisco, CA, 1-73 Celani, G, (2004) “From simple to complex: using AutoCAD to build generative design systems” in: L. Caldas and J. Duarte (org.) Implementations issues in generative design systems. First Intl. Conference on Design Computing and Cognition, July 2004 Dodgson M, Gann D.M., Salter A, (2004), “Impact of Innovation Technology on Engineering Problem Solving: Lessons from High Profile Public Projects,” Industrial Dynamics, Innovation and Development, 2004 Dristas, (2004) “Design Operators.” Thesis. Massachusetts Institute of Technology, Cambridge, MA, 2004 Friedman, M, (2002), Gehry Talks: Architecture + Practice, Universe Publishing, New York, NY, 2002 Kolarevic, B, (2003), Architecture in the Digital Age: Design and Manufacturing, Spon Press, London, UK, 2003 Opas J, Bochnick H, Tuomi J, (1994), “Manufacturability Analysis as a Part of CAD/CAM Integration”, Intelligent Systems in Design and Manufacturing, 261-292 Rudolph S, Alber R, (2002), “An Evolutionary Approach to the Inverse Problem in Rule-Based Design Representations”, Artificial Intelligence in Design ’02, 329-350 Rich M, (1989), Digital Mockup, American Institute of Aeronautics and Astronautics, Reston, VA, 1989 Schön, D., The Reflective Practitioner: How Professional Think in Action. Basic Books. 1983 Shelden, D, (2003), “Digital Surface Representation and the Constructability of Gehry’s Architecture.” Diss. Massachusetts Institute of Technology, Cambridge, MA, 2003 Smithers T, Conkie A, Doheny J, Logan B, Millington K, (1989), “Design as Intelligent Behaviour: An AI in Design Thesis Programme”, Artificial Intelligence in Design, 293-334 Smithers T, (2002), “Synthesis in Designing”, Artificial Intelligence in Design ’02, 3-24 Stiny, G, (1977), “Ice-ray: a note on the generation of Chinese lattice designs” Environmental and Planning B, volume 4, pp. 89-98
keywords	Digital fabrication; bilateral contouring; integral connection; complex-curve
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	ijac20042405
id	ijac20042405
authors	Heitor, Teresa V.; Duarte, José P.; Pinto, Rafaela M.
year	2004
title	Combing Grammars and Space Syntax: Formulating, Generating and Evaluating Designs
source	International Journal of Architectural Computing vol. 2 - no. 4, 492-515
summary	This paper is concerned with how two different computational approaches to design – shape grammars and space syntax – can be combined into a single common framework for formulating, generating, and evaluating designs. The main goal is to explore how the formal principles applied in the design process interact with the spatial properties of the designed objects. Results suggest that space syntax is (1) useful in determining the universe of solutions generated by the grammar and (2) in evaluating the evolving designs in terms of spatial properties and, therefore, in guiding the generation of designs.
series	journal
email
more	http://www.multi-science.co.uk/ijac.htm
last changed	2007/03/04 07:08

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