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	f7b9
authors	Goldschmidt, G.
year	1994
title	On visual design thinking: the via kids of architecture
source	Design Studies 15 (2), pp. 158-174
summary	Designers invariably use imagery to generate new form combinations which they represent through sketching. But they also do the reverse: they sketch to generate images of forms in their minds. Common belief regards such activity as non-rational. In contrast, we assert that interactive imagery through sketching is a rational mode of reasoning, characterized by systematic exchanges between conceptual and figural arguments. Cognitive science, strongly dominated by a linguistic paradigm, has yet to recognize the paramount role of visual reasoning in many instances of problem solving; and in design tool-making, computational and otherwise, we must learn to optimize rather than bypass intuitive visuality.
series	journal paper
last changed	2003/04/23 15:14

_id	5607
authors	Goldschmidt, Gabriela
year	2001
title	Is a Figure-Concept Binary Argumentation Pattern Inherent in Visual Design Reasoning?
source	J. S. Gero, B. Tversky and T. Purcell (eds), 2001, Visual and Spatial Reasoning in Design, II - Key Centre of Design Computing and Cognition, University of Sydney, Australia
summary	This paper is based on the assumption that because designingis aimed at specifying configurations of entities, designers mustmanipulate forms and shapes and they must resort to visual reasoning todo so. Visual reasoning in designing is seen as the interplay betweenfigural and conceptual reasoning, such that the one supports andcontinues the other in order to arrive at a configuration that is valid interms of all the requirements it is to satisfy. We use protocol analysis toexplore the bond between conceptual and figural reasoning at two levelsof cognitive operation – that of the design move and that of theargument that is its building block. We conclude that the two modes ofreasoning are equi-present in designing; they describe a binary systemcharacterized by high frequency shifts between figure and concept.
series	other
email
more	http://www.arch.usyd.edu.au/kcdc/conferences/vr01/
last changed	2003/05/02 11:16

_id	ecaade2016_006
id	ecaade2016_006
authors	Gomaa, Mohamed and Jabi, Wassim
year	2016
title	Evaluating Daylighting Analysis of Complex Parametric Facades
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 2, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 147-156
doi	https://doi.org/10.52842/conf.ecaade.2016.2.147
wos	WOS:000402064400014
summary	Lighting analysis tools have proven their ability in helping designers provide functional lighting, increase comfort levels and reduce energy consumption in buildings. Consequently, the number of lighting analysis software is increasing and all are competing to provide credible and rigorous analysis. The rapid adoption of parametric design in architecture, however, has resulted in complex forms that make the evaluation of the accuracy of digital analysis more challenging. This study aims to evaluate and compare the performance of daylighting analysis in two industry standard software (Autodesk Revit and 3ds Max) when analysing the daylighting of complex parametric façade patterns. The study has shown that, generally, both Revit and 3ds Max underestimate illuminance values when compared to physical scaled models. 3ds Max was found to outperform Revit when simulating complex parametric patterns, while Revit was found to outperform 3ds Max when simulating simple fenestration geometries. As a general conclusion, the rapid progress of parametric modelling, integrated with fabrication technologies, has made daylighting analysis of complex geometries more challenging. There is a need for more sophisticated algorithms that can handle the increased level of complexity as well as further verification studies to evaluate the accuracy claims made by software vendors.
keywords	Daylighting analysis evaluation; Parametric patterns; Revit; 3ds Max; Complex façades
series	eCAADe
email
last changed	2022/06/07 07:51

_id	ecaadesigradi2019_149
id	ecaadesigradi2019_149
authors	Gonzalez-Quintial, Francisco and Martin-Pastor, Andres
year	2019
title	Convolutas - Developable strips and digital fabricated lightweight architecture
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 1, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 585-594
doi	https://doi.org/10.52842/conf.ecaade.2019.1.585
summary	The present research is mainly focused on the development of a system that would be able to offer the potentiality of constructing free-form surfaces by using developable surfaces. Through a deep revision of pre-computational traditional geometric systems based on the classical Descriptive Geometry, after a re-interpretation that design and algorithmic generation tools allow by using computers and digital fabrication hardware as testing ground, a geometric control process has been designed in order to offer the possibility of managing double-curvature complex forms and their adaptation by using developable surfaces. The focal point of this system is proving how developable surfaces are suitable to build architectonical elements at real scale.
keywords	Geometry; Developable Surfaces; Algorithmic Approach; Digital Fabrication
series	eCAADeSIGraDi
email
last changed	2022/06/07 07:51

_id	ascaad2016_042
id	ascaad2016_042
authors	Goud, Srushti
year	2016
title	Parametrizing Indian Karnata-Dravida Temple Using Geometry
source	Parametricism Vs. Materialism: Evolution of Digital Technologies for Development [8th ASCAAD Conference Proceedings ISBN 978-0-9955691-0-2] London (United Kingdom) 7-8 November 2016, pp. 409-420
summary	The Karnata-Dravida temple tradition flourished and evolved for 700 years. The evolution of the typology was demonstrated through the structure. However, as the Shastras or ancient texts proclaim, the underlying principles of geometry remain unchanged. Geometry and the unchanging principles of construction made the architects experiment with form, material and ornamentation. Geometry does not only mean shapes or two dimensional diagrams but it is a rule to amalgamate all the elements to form a dynamic form of a temple. The paper validates the use of geometry through an evolving sequence of Karnata-Dravida temples with the help of an analytical model created using the grasshopper software. The components of the model are based on the geometric rule (the basis for parametrizing) and parameters of the algorithm – plan forms, organizational compositions, vimana or superstructure composition – which result in a geometry. Even though building science is an old tradition, the use of computational procedures reveals the predictable nature of temples in the Dravidian clan and enables the analysis of existing temples, development of new possibilities or evolution of interpreted forms. Hence, enriching the existing understandings of previous scholarships in the field of temple architecture with an entirely new system of interpretation. In the age of technology where analytics plays a crucial role in almost all sectors, ancient temple architecture in India unfortunately falls behind when it comes to computational methods of restoration or reconstruction. This research questions the applicability of computational technology as a facilitator in preserving or reconstructing existing temples while maintaining its creative liberty.
series	ASCAAD
email
last changed	2017/05/25 13:33

_id	caadria2022_263
id	caadria2022_263
authors	Gough, Phillip, Globa, Anastasia and Reinhardt, Dagmar
year	2022
title	Computational Design with Myco-Materials
source	Jeroen van Ameijde, Nicole Gardner, Kyung Hoon Hyun, Dan Luo, Urvi Sheth (eds.), POST-CARBON - Proceedings of the 27th CAADRIA Conference, Sydney, 9-15 April 2022, pp. 649-658
doi	https://doi.org/10.52842/conf.caadria.2022.2.649
summary	A sustainable, circular, post-carbon economy of the future will take waste material from one part of the economy and give it new value. This will reduce energy and material leakage from the economy and create new opportunities for innovation in materials. Myco-materials provide an opportunity to transform ligno-cellulosic matter, such as waste cardboard and sawdust, into useful materials. This is achieved by using a fungus to bind together these substrates into useful forms. This paper explores how computational design parameters can be informed from the mycelia growth process. We created several prototype forms that show behaviour of myco-materials through the growing and drying process. These show how inclusion of cardboard substructures may improve the performance of the resulting material by increasing its stability during the drying process. We also demonstrate limits to the size of myco-materials through computational design. Myco-materials will likely be part of a sustainable post-carbon economy, by bringing new value to waste material, and this paper shows how computational design can be informed by mycelial growth.
keywords	Mycelia, Biodesign, Growing Designs, Computational Design, SDG 12
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	ecaade2020_408
id	ecaade2020_408
authors	Grasser, Alexander, Parger, Alexandra and Hirschberg, Urs
year	2020
title	Pervasive Collaboration and Tangible Complexity in Realtime Architecture
source	Werner, L and Koering, D (eds.), Anthropologic: Architecture and Fabrication in the cognitive age - Proceedings of the 38th eCAADe Conference - Volume 1, TU Berlin, Berlin, Germany, 16-18 September 2020, pp. 393-400
doi	https://doi.org/10.52842/conf.ecaade.2020.1.393
summary	This paper reports on an ongoing experiment in design collaboration: an open collaborative realtime environment that enables participatory design activities in spatially distributed teams. The project builds on online platforms and open source ways of sharing design ideas, but also on recent advances in shared augmented reality enabled by game engine technology. Furthermore it focuses on combinatorial design of collaborative objects: the models shared in this way are not just geometric forms, but informed systems of parts with a procedural or combinatorial logic, an assembly strategy. By pooling and aggregating such intelligent assembly systems in a shared online realtime design space we are trying to move towards pervasive collaboration in architecture. Authors taking part in the project are united in a shared persistent design space and can design collectively. They experience what we refer to as tangible complexity: a playful mode of aggregating and combining design ideas of different authors. We argue that this pervasive collaboration can lead to novel types of complexity: an architecture of socially augmented formations.
keywords	Collaborative Objects; Realtime Architecture; Tangible Complexity
series	eCAADe
email
last changed	2022/06/07 07:51

_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	ecaade03_519_209_gruber
id	ecaade03_519_209_gruber
authors	Gruber, A., Hirschberg, U. and Dank, R.
year	2003
title	Calculated Bananas: Defining a new introductory course in visual design for first year architecture students
source	Digital Design [21th eCAADe Conference Proceedings / ISBN 0-9541183-1-6] Graz (Austria) 17-20 September 2003, pp. 519-522
doi	https://doi.org/10.52842/conf.ecaade.2003.519
summary	A novel introductory course in visual design is presented that combines the teaching of various subjects and skills around the development of digital fruit. – A mandatory subject for first year architecture students at Graz University of Technology, the course is jointly offered by two institutes and combines the teaching of hand sketching, descriptive geometry, computer aided design, generative algorithms, image processing, desktop and online publishing and networked collaboration. The ambitious pedagogy uses information technology to provide links and synergies between the different subjects. The digital fruit are developed in a collaborative environment that fosters the evolution of new kinds of forms and structures through exchanging and crossbreeding of CAAD data. The paper reports on the experiences gained during the first installment the course in which 130 students were enrolled.
keywords	Creative collaboration: evolutionary processes; digital fruit; complex geometry; methods of representation.
series	eCAADe
email
more	http://ikg.tugraz.at/
last changed	2022/06/07 07:51

_id	sigradi2012_121
id	sigradi2012_121
authors	Guzmán, Daniela Silva; Bello, Joaquín Bustos
year	2012
title	Aplicación del concepto conductor de Identidad de Marca en la generación de formas con Shape Grammar [Application of the conductive concept of brand identity in the generation of forms with Shape Grammar]
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 473-476
summary	The purpose of this paper is to analyze the relationship between the shape grammar process and brand identity, taking the user’s perception in the creation of new products as the central core of the research. The latter is done in order to obtain several parameters that allow us to change the shape of the products and do not affect the acknowledgement of brand conductive concept. By reducing the amount of results of processes of design, the selection and evaluation process is improved. To conduct the research the bottles from the brand Next from Soprole S.A were selected as study case.
keywords	Shape Grammar; Concepto conductor; Identidad de Marca
series	other
type	normal paper
email
last changed	2013/12/18 17:01

_id	c65d
authors	Habraken, N.J. and Teicher, J (ed.)
year	1998
title	The Structure of the Ordinary
source	MIT Press, Cambridge, USA, pp. 73-76
summary	According to N. J. Habraken, intimate and unceasing interaction between people and the forms they inhabit uniquely defines built environment. The Structure of the Ordinary, the culmination of decades of environmental observation and design research, is a recognition and analysis of everyday environment as the wellspring of urban design and formal architecture. The author's central argument is that built environment is universally organized by the Orders of Form, Place, and Understanding. These three fundamental, interwoven principles correspond roughly to physical, biological, and social domains. Historically, "ordinary" environment was the background against which architects built the "extraordinary." Drawing upon extensive examples from archaeological and contemporary sites worldwide, the author illustrates profound recent shifts in the structure of everyday environment. One effect of these transformations, Habraken argues, has been the loss of implicit common understanding that previously enabled architects to formally enhance and innovate while still maintaining environmental coherence. Consequently, architects must now undertake a study of the ordinary as the fertile common ground in which form- and place-making are rooted. In focusing on built environment as an autonomous entity distinct from the societies and natural environments that jointly create it, this book lays the foundation for a new dialogue on methodology and pedagogy, in support of a more
series	other
last changed	2003/04/23 15:14

_id	caadria2018_365
id	caadria2018_365
authors	Ham, Jeremy J.
year	2018
title	Exploring the Intersection of Music and Architecture Through Spatial Improvisation
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 1, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 121-130
doi	https://doi.org/10.52842/conf.caadria.2018.1.121
summary	Creative practice design research brings forth rich opportunities for the exploration of inter-domain connections between music and architecture. Through inter-disciplinary creative practice explorative project work founded on a methodology of improvisation on the digital drum kit, two stages of design research project work are outlined. In the first stage, a language of polyrhythmic drumming is parametrically spatialized as a reflective lens on an extant creative practice. From here, a new form of 'Spatial Improvisation' is explored, where conceptual spatial forms are generated from improvisations on the digital drum kit. This new musico-spatial design practice involves mediating a spatio-temporal-dynamical 'Y-Condition (Martin, 1994)' wherein temporal and dynamic design decisions translate from the musical domain into the spatial domain through 'spatial thinking-in-action'.
keywords	Music and Architecture; Design Research ; Spatial Improvisation; Design Process; Parametric Digital Design
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	2391
authors	Hammond, Brian G. and Leifer, Dave
year	1984
title	A Graphics Interface to Complement Traditional Techniques
source	1984? pp. 321-329 : ill. includes bibliography
summary	Noting the reluctance of architects in small private practices to adopt CAAD aids, the crudity of existing graphic interfaces is identified as an inhibiting factor. A suite of computer programs currently under development are described which are designed to permit the input of geometric plan forms by traditional pencil and paper techniques, whilst utilizing the computers processing power to edit and manipulate the data so `captured'
keywords	CAD, architecture, user interface, computer graphics
series	CADline
last changed	2003/06/02 13:58

_id	caadria2018_010
id	caadria2018_010
authors	Han, Lu and Cardoso Llach, Daniel
year	2018
title	Ludi: A Concurrent Physical and Digital Modeling Environment
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 1, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 515-523
doi	https://doi.org/10.52842/conf.caadria.2018.1.515
summary	This paper explores the potential of a concurrent physical and digital modeling environment. We describe a prototype for a novel design modeling interface where users can take advantage of the affordances of both physical and digital modeling environments, and work back and forth between the two. Using Processing, along with the Kinect depth sensor, the system uses depth data read from a physical modeling space to produce an enhanced digital representation in real time. Users can design by moving and stacking wooden blocks in a physical space, which is represented (and enhanced) digitally as a "voxel space," which can in turn be edited digitally. The result is a proof-of-concept concurrent physical and digital modeling environment combining design affordances specific to each media: the physical space offers tactile and embodied forms of design inter-action, and the digital space offers parametric editing capabilities, along with the capacity to view the modeling space from different perspectives, and perform basic analyses on designs. Following a brief review of experimental computational and tangible interaction design interfaces, the paper discusses the system's implementation, its limitations, and future steps.
keywords	Computational Design; Processing; Concurrent Modeling Environment; Tangible Interaction
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	ecaade2014_182
id	ecaade2014_182
authors	Hassan Abdel Salam Elbanna
year	2014
title	Timing and spacing in Architecture - Architecture with motion
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 2, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 89-95
doi	https://doi.org/10.52842/conf.ecaade.2014.2.089
wos	WOS:000361385100008
summary	It is a fact that the Animation and architecture have common and strong bonds in various forms. According to animators, and architects as well, there are two main and vital concepts which are the basics of animation, they are Timing and Spacing. The paper represents an analogy between animation and architecture focusing on these two concepts. So, in the following sections we discover the relation between animation and deforming geometry in architecture. By looking through the history and theory of architecture we find many architects' attempts to apply animation as a concept within their forms. This paper will review what pioneers have achieved in designing through animation. At the end of the paper a case study is being analyzed by showing how the concept of animation is applied to an existing building due to the research's main points.
keywords	Architecture; animation; timing; spacing
series	eCAADe
email
last changed	2022/06/07 07:49

_id	caadria2020_369
id	caadria2020_369
authors	Heckmann, Oliver, Budig, Michael, Xuereb Conti, Zack, Cheng, Ray Chern Xi and Lo Tian Tian, Sky
year	2020
title	User-driven Parcellation of High-rise Units for Future Urban Habitation - Participatory Computational Design Tools for Future Urban Habitation
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 1, Chulalongkorn University, Bangkok, Thailand, 5-6 August 2020, pp. 751-760
doi	https://doi.org/10.52842/conf.caadria.2020.1.751
summary	Most residential high-rise apartments currently built to satisfy growing demands for housing, are predetermined and thus, are unable to respond to the increasingly diversifying forms of co-habitation. This research pursues alternative flexible approaches by building on Habraken's 'Open Building' paradigm, where permanent, polyvalent 'Support System' layouts are strategically designed to accommodate highly adaptable, user-driven 'Infill systems'. In this context, we adopt the participatory decision-making approach, by means of a computational framework that facilitates user-driven parcellations of entire buildings into apartments segments. The means is an algorithm that allocates numerous user-preference regarding size and position simultaneously - by searching for parcel permutations through a graph-syntax representation of floor plans. The research forms part of a larger project that aims to evaluate the resilience of mass housing for future uncertain demands.
keywords	participatory; generative; mass housing; open building
series	CAADRIA
email
last changed	2022/06/07 07:49

_id	ea2f
authors	Heisserman, Jeff A.
year	1991
title	Generative geometric design and boundary solid grammars
source	Carnegie Mellon University, Department of Architecture
summary	This thesis explores the automatic generation of solid models based on a grammatical paradigm. It introduces a formalism, boundary solid grammars, for this purpose. In this formalism, a set of geometric rules is applied to an initial solid model to generate a language or family of solids. A rule may match on a portion of the boundary of a solid, and then modify the solid or add new solids. Genesis is presented as an implementation of the formalism. A number of grammars have been constructed to demonstrate the concepts and usefulness of the formalism. These grammars generate simple geometric forms including snodakes, recursive octahedra, “fractal” mountains, and spirals. Another grammar generates stereo lithography support structures. Queen Anne houses have been characterized with a more extensive grammar. Grammars are also being developed to generate housings for small computers and structural designs for high rise buildings. The thesis introduces the unary shape operations and a new paradigm for solid modeling, The unary shape operations take models that may have self-intersections, interpret the models consid- ering the given geometry and face orientations, and produce valid models. Local operations, the unary shape operations, and Boolean operations are used together within a valid modeling scheme. The thesis introduces a new boundary representation for manifold and nonmanifold solids, the generalized split-edge representation. It describes generalized Euler operations which manipulate the topology of the nonmanifold representation. Finally, the thesis presents a form of the Euler- Poincare equation that characterizes the relationship between elements of nonmanifold surfaces of solids.
series	thesis:PhD
last changed	2003/02/12 22:37

_id	sigradi2007_af09
id	sigradi2007_af09
authors	Hernández Ibáñez, Luis; Viviana Barneche Naya
year	2007
title	Firmitas, Utilitas, Venustas, Virtualitas. Vitruvius in Second Life [Firmitas,Utilitas,Venustas…,Virtualitas. Vitruvius en Second Life]
source	SIGraDi 2007 - [Proceedings of the 11th Iberoamerican Congress of Digital Graphics] México D.F. - México 23-25 October 2007, pp. 387-392
summary	Nowadays, new forms of virtual architecture are appearing as virtual worlds based on the metaverse concept are becoming increasingly more popular, holding all kind of virtual versions of human activities. This paper aims to make a reflection on the features of these new architectures compared with their equivalents in the real world by means of an analysis through the prism of the three fundamental conditions of the classic architecture: Firmitas, Utilitas and Venustas. The text describes how these principles once stated by Vitruvius are now affected, modulated or changed in the digital realm by the introduction of the Virtualitas concept.
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	acadia08_158
id	acadia08_158
authors	Hight, Christopher; Natalia Beard; Michael Robinson
year	2008
title	Hydrauli_City: Urban Design, Infrastructure, Ecology
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, 158-165
doi	https://doi.org/10.52842/conf.acadia.2008.158
summary	The Hydrauli_city project was commissioned by the Harris County Flood Control District, Brays Bayou Partnership and the Rice School of Architecture to research the transformation of one of the 21 main Bayous in Houston. The project seems perfectly aligned with the theme of the issue because it examines the relationship between infrastructure, risk and urban design, and does so by attempting to leverage diverse time scales and scales of intervention into the maintenance of this infrastructure, rethinking the legacy of its top-down 20th century planning logics. Moreover, it raises key questions about new agencies and sites that may be available to architects that seek to engage the political ecologies of the contemporary metropolis. Through research on the hydraulic urbanism of Houston and through three speculative design proposals, Hydrauli_city presents research about transforming Brays Bayou. The project attempts to provide a figure for and foster the new forms of collectives and networks required to transform the urban condition of Houston without resorting to unrealistic top-down planning infrastructures. We located several scales and time-frames of operations, from micro-scaled interventions derived from ongoing maintenance of the bayous to larger scale transformations now possible due to the programs to reduce the risk of flooding in the bayou’s watershed. Hydrauli_city maps the confluences of interests and agencies invested in Brays Bayou at this crucial moment in its history, and offers proposals of bold new civic spaces for the Green Century. The project will be disseminated via an interactive website and a series of public presentations to raise awareness and spark conversation. Flood risk management is a hybrid phenomenon, at once the object of scientific knowledge, engineering practice, and political and economic forces, positioning the architect in a prime-position to intervene.
keywords	Infrastructure; Mapping; Morphogenesis; System; Urbanism
series	ACADIA
last changed	2022/06/07 07:50

_id	9f08
authors	Hillis, K.
year	1999
title	Digital Sensations: Space, Identity, and Embodiment in Virtual Reality
source	University of Minnesota Press, Minneapolis, Minnesota
summary	Virtual reality is in the news and in the movies, on TV and in the air. Why is the technology -- or the idea -- so prevalent precisely now? What does it mean -- what does it do -- to us? Digital Sensations looks closely at the ways representational forms generated by communication technologies -- especially digital/optical virtual technologies -- affect the "lived" world. Virtual reality, or VR, is a technological reproduction of the process of perceiving the real; yet that process is "filtered" through the social realities and embedded cultural assumptions about human bodies, perception, and space held by the technology's creators. Through critical histories of the technology -- of vision, light, space, and embodiment -- Ken Hillis traces the various and often contradictory intellectual and metaphysical impulses behind the Western transcendental wish to achieve an ever more perfect copy of the real. Because virtual technologies are new, these histories also address the often unintended and underconsidered consequences -- such as alienating new forms of surveillance and commodification -- flowing from their rapid dissemination. Current and proposed virtual technologies reflect a Western desire to escape the body Hillis says. Exploring topics from VR and other, earlier visual technologies, Hillis's penetrating perspective on the cultural power of place and space broadens our view of the interplay between social relations and technology.
series	other
last changed	2003/04/23 15:14

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