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	4af9
authors	Levy, Henry
year	1984
title	VAXstation : A General-Purpose Raster Graphics Architecture
source	ACM Transactions on Graphics. January, 1984. vol. 3: pp. 70-83 : ill. includes bibliography
summary	A raster graphics architecture and a raster graphics device are described. The graphics architecture is an extension of the RasterOp model and supports operations for rectangle movement, text writing, curve drawing, flood, and fill. The architecture is intended for implementation by both closely and loosely coupled display subsystems. The first implementation of the architecture is a remote raster display connected by fiber optics to a VAX minicomputer. The device contains a separate microprocessor, frame buffer, and additional local memory: it is capable of executing raster commands on operands in local memory or VAX host memory
keywords	hardware, computer graphics, technology
series	CADline
last changed	1999/02/12 15:09

_id	2edf
authors	Levy, Pierre
year	1998
title	Becoming Virtual, Reality in the Digital Age
source	Plenum Trade, New York
summary	Pierre Levy takes a fresh look at the whole idea of what is virtual. He's responding to the widespread belief, and sometimes even panic, that a digital society with emphasis on virtual interactions is necessarily depersonalizing. He takes particular exception to the notion that "virtual" and "real" are opposites. Instead, Levy argues that virtuality is one of four modes of existence, the rest of which he describes as reality, possibility, and actuality. Each is defined in terms of its relationship with its environment. In following Levy's world view, you may find that he interprets some or all of those terms in ways you're not used to, but the result is an interesting new approach to what it means to be part of an increasingly digital world. He examines the virtualization of several elements our society: the corporal body, text, the economy, language, technology, contracts, intelligence, subjects, and objects. What he finds is not a destruction of the personal so much as a transformation. Virtualization adds to, but does not replace, the real, the possible, and the actual. By understanding what virtualization means and involves, Levy believes that society will gain a greater variety of options for interaction in all areas. Becoming Virtual is a serious philosophical work, dense with ideas.
series	other
last changed	2003/04/23 15:14

_id	1ccb
authors	Levy, R. M.
year	1997
title	Data or Image: The Influence of Professional Culture on Computing in Design
source	ACADIA Quarterly Vol 16(no.2, Summer): 8-11, pp. 22-23
summary	Contributed by Susan Pietsch (spietsch@arch.adelaide.edu.au)
keywords	3D City Modeling, Development Control, Design Control
series	other
last changed	2001/06/04 20:41

_id	6f47
authors	Lewin, J.S. and Gross, M.D.
year	1997
title	Resolving archaeological site data with 3D computer modeling: the case of Ceren
source	Automation in Construction 6 (4) (1997) pp. 323-334
summary	This paper reports on our experience working with a team of anthropologists to construct three-dimensional computer graphic models of Ceren, an archaeological site in western El Salvador, using inexpensive hardware and software. In constructing the model we discovered various ambiguities and inconsistencies in the raw site data and drawings we were provided. We resolved these problems by analysis and reinterpretation of the data, working closely with our archaeologist collaborator. What began as a simple exercise in rendering developed into a collaborative research effort to understand and interpret the source data. The process of computer modeling forced us to re-examine, analyze and interpret the information from the site.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	6e4f
authors	Lewin, J.S., Ehrhardt, M. and Gross, M.D.
year	1997
title	Not Just Another Pretty Face: Images and Arguments in an Anthropology Web Site
source	CAAD Futures 1997 [Conference Proceedings / ISBN 0-7923-4726-9] München (Germany), 4-6 August 1997, pp. 635-654
summary	We are developing a web site with photorealistic animations and virtual reality walk throughs of architecture and artifacts at an archaeological site in El Salvador. The goal of the site is to support research and teaching about household anthropology in sixthcentury Meso-America. To counter the false sense of realism and truth these experiences often convey we have developed Image Arguments, a scheme for integrating with images the arguments and data that they are based on. We provide this contextual information using a server side database and client side Java applets, enabling viewers to examine the assumptions and the data behind the images.
series	CAAD Futures
email
last changed	1999/04/06 09:19

_id	4e8e
authors	Lewin, Jenniffer S. and Gross, Mark D.
year	1996
title	Resolving Archaeological Site Data With 3D Computer Modeling: The Case of Ceren
doi	https://doi.org/10.52842/conf.acadia.1996.255
source	Design Computation: Collaboration, Reasoning, Pedagogy [ACADIA Conference Proceedings / ISBN 1-880250-05-5] Tucson (Arizona / USA) October 31 - November 2, 1996, pp. 255-266
summary	This paper reports on our experience working with a team of anthropologists to construct three- dimensional computer graphic models of Ceren, an archaeological site in western El Salvador, using inexpensive hardware and software. In constructing the model we discovered various ambiguities and inconsistencies in the raw site data and drawings we were provided. We resolved these problems by analysis and reinterpretation of the data, working closely with our archaeologist collaborator. What began as a simple exercise in rendering developed into a collaborative research effort to understand and interpret the source data. The process of computer modeling forced us to re-examine, analyze and interpret the information from the site.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	ga0109
id	ga0109
authors	Lewis, Chak Chan
year	2001
title	Defects Defined by Form Making Method for Improving Generative Design System
source	International Conference on Generative Art
summary	Evolutionary-based Generative Design System (GDS) is generally designed for industrial designers during the early stage of conceptual design. Although “additive” Rapid Prototyping (RP) methods are commonly applied for the physical realization, grown Surfaces Object (SO) created from these GDS still has room to be considered to a combined workable volume,especially for the more complex design. The inarticulate processes from GDS to Generative Production System (GPS) are linking up with different aspects and contexts as well as the conventional Computer-Aided Design (CAD)/RP integration, which has been conducted for along time. There are design constraints existing between 3D SO in industry design representation and feasible 3D production solution. Perception to object designing with knowledge is limited at SO forming by incomplete interpretations. Meanwhile, it is difficult to discern the problemsof incomplete object generation as hidden illegal design occurred from time to time because of the design constraints, despite the completion of the design representation. It has led to some of the invalidity of surface feature at the end. The reconstruction of the RP process ofthe SO pre-processing procedure can help to clarify these defects with thickness requirement in generative production. The aim of this paper is to verify an effective generative design strategy as a possibility ofimplementing method(s) or tool. They will be built within a surface-oriented GDS by mapping a valid object directly accepted by any RP system without any influence on generative object creating. Through the involvement of Form Making processes of RP from selected instants with their solid phenomena, evidences are used for defending this viewpoint.Throughout the process, generative design method and CAD method have been utilized for the creation of virtual form. The 3D printer and Fused Deposition Modeling (FDM) technology with “trial and error” method were employed in the RP processes.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	acadia06_548
id	acadia06_548
authors	Lewis, K., Kentnar, J.
year	2006
title	110% Juice
doi	https://doi.org/10.52842/conf.acadia.2006.548
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 548-549
summary	New England’s seacoast is an active, working landscape. Here, with long history of whaling, sailing, and fishing, people have lived comfortably next to their economic infrastructure. Recent infrastructure projects, such as Deer Island Water Treatment Facility and the Big Dig, have embraced landscape as a way to facilitate modern “live / work” relationships.Wind turbines are part of the working landscape. So are ferries, commercial fishing, and cranberries. All clean, prosperous, and socially vibrant industry, we see the Cape Wind Project as a way to bring these landscape industries closer together, and to reestablish the vision of Cape Cod as a working landscape.The current wind proposal offers 100% efficiency with 0% consideration of the view. The turbines’ current configuration produces a view that is uneven and disorganized. Efficiency doesn’t have to be lost at the expense of aesthetics. By proposing a circle of turbines rather than a grid, an even perspective is provided for all of the cape and the islands (no strange bunches, as with the grid); the turbines are less dense, allowing one to see through them, and not just at them; service travel between turbines is shortened – 77 miles of travel for the grid versus 46 miles for the circle. By becoming larger, the effect of the circular array has become smaller.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	ga0009
id	ga0009
authors	Lewis, Matthew
year	2000
title	Aesthetic Evolutionary Design with Data Flow Networks
source	International Conference on Generative Art
summary	For a little over a decade, software has been created which allows for the design of visual content by aesthetic evolutionary design (AED) [3]. The great majority of these AED systems involve custom software intended for breeding entities within one fairly narrow problem domain, e.g., certain classes of buildings, cars, images, etc. [5]. Only a very few generic AED systems have been attempted, and extending them to a new design problem domain can require a significant amount of custom software development [6][8]. High end computer graphics software packages have in recent years become sufficiently robust to allow for flexible specification and construction of high level procedural models. These packages also provide extensibility, allowing for the creation of new software tools. One component of these systems which enables rapid development of new generative models and tools is the visual data flow network [1][2][7]. One of the first CG packages to employ this paradigm was Houdini. A system constructed within Houdini which allows for very fast generic specification of evolvable parametric prototypes is described [4]. The real-time nature of the software, when combined with the interlocking data networks, allows not only for vertical ancestor/child populations within the design space to be explored, but also allows for fast "horizontal" exploration of the potential population surface. Several example problem domains will be presented and discussed. References: [1] Alias \| Wavefront. Maya. 2000, http://www.aliaswavefront.com [2] Avid. SOFTIMAGE. 2000, http://www.softimage.com [3] Bentley, Peter J. Evolutionary Design by Computers. Morgan Kaufmann, 1999. [4] Lewis, Matthew. "Metavolve Home Page". 2000, http://www.cgrg.ohio-state.edu/~mlewis/AED/Metavolve/ [5] Lewis, Matthew. "Visual Aesthetic Evolutionary Design Links". 2000, http://www.cgrg.ohio-state.edu/~mlewis/aed.html [6] Rowley, Timothy. "A Toolkit for Visual Genetic Programming". Technical Report GCG-74, The Geometry Center, University of Minnesota, 1994. [7] Side Effects Software. Houdini. 2000, http://www.sidefx.com [8] Todd, Stephen and William Latham. "The Mutation and Growth of Art by Computers" in Evolutionary Design by Computers, Peter Bentley ed., pp. 221-250, Chapter 9, Morgan Kaufmann, 1999.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	cba2
authors	Lewis, Rick and Séquin, Carlo
year	1998
title	Generation of 3D building models from 2D architectural plans
source	Computer-Aided Design, Vol. 30 (10) (1998) pp. 765-779
summary	A robust, semi-automatic way is presented to create 3D polyhedral building models from computer-drawn floor plans, requiring minimal user interaction. The modelsadhere to a consistent solids representation and can be used for computer rendering, visualization in interactive walkthroughs, and in various simulation and analysisprograms. The output of our prototype program is directly compatible with the Berkeley WALKTHRU system and with the NIST CFAST fire simulator. A consistentmodel of a seven-storey building with more than 300 rooms has been generated in the time span of a few days from original AutoCAD floor plans drawn by architects.
keywords	Building Visualization, Architectural CAD Models, Floor Plan Extrusion, Solid Model Generation
series	journal paper
last changed	2003/05/15 21:33

_id	2fa9
authors	Lewis, W.P.
year	1981
title	The Role of Intelligence in the Design of Mechanical Components
source	North-Holland Publishing Company, 1981. pp. 59-88 : tables. includes bibliography: p. 79
summary	Methods used to design engineering components to transmit mechanical power are described and analyzed. The analysis defines the role of human intelligence, which is conceived in terms of the capacity to generate and process information, and its role in design problem solving therefore are examined with respect to an information processing design behavior and throw light on the extent to which it can be simulated or augmented by the digital computer
keywords	design process, problem solving, mechanical engineering, intelligence
series	CADline
last changed	2003/06/02 13:58

_id	acadia14projects_205
id	acadia14projects_205
authors	Ley, Rob
year	2014
title	May/September: Eskenazi Hospital Parking Structure Façade
doi	https://doi.org/10.52842/conf.acadia.2014.205
source	ACADIA 14: Design Agency [Projects of the 34th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 9789126724478]Los Angeles 23-25 October, 2014), pp. 205-209
summary	Façade for Eskenazi Hospital, Indianapolis, IN
keywords	Binary, Synthetic, Terrain, Articulated, Variable, Morphing, Interactive
series	ACADIA
type	Practice Projects
email
last changed	2022/06/07 07:52

_id	cf40
authors	Leyh, W.
year	1995
title	Automatic assembly of a commercial cavity block system
source	Automation in Construction 4 (2) (1995) pp. 147-167
summary	In an earlier publication (Leyh, 1993) the "Experiences with the Construction of a Building Assembly Robot" have been dealt with. The application of that robot system for the automatic assembly of commercial cavity blocks is the subject of a subsequent report which consists of two parts: in the first, this paper, we primarily deal with the assembly methods, in the second we deal with their realization. What is characteristic of cavity blocks is the fact that they are at first assembled dry, without cementing material, and the masonry is later filled with mortar. As to their weight and dimension, the cavity blocks used by the company GISOTON are adjusted to the ergonomics of a mason. The entirely different characteristics and abilities of assembly robots are not taken into consideration. However, their dimensional tolerance is relatively small (0.5 mm). Furthermore as cavity bricks, they have conic and oval recesses. Both features are strongly favourable for automation. This paper will highlight specific problems during automized construction assembly with commercial standard assembly elements, and help to solve them.
keywords	Robotics; Assembly methods; Jointing technique; Reference system; Gripper construction
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/06/02 09:36

_id	ecaade2014_159
id	ecaade2014_159
authors	Leyla Yunis, Ond_ej Kyjánek, Moritz Dörstelmann, Marshall Prado, Tobias Schwinn and Achim Menges
year	2014
title	Bio-inspired and fabrication-informed design strategies for modular fibrous structures in architecture
doi	https://doi.org/10.52842/conf.ecaade.2014.1.423
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 1, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 423-432
summary	Research pavilions can serve as architectural scale demonstrations for the materialization of experimental forms and structures. Pavilions seek to prove and change methods of design and construction mechanisms in order to achieve desires such as material efficiency, novel spatial qualities and performative needs. The case of the ICD/ITKE Research Pavilion 2013-14 highlights the use of fiber composites in order to achieve a core-less filament winding modular system from bio-inspired lightweight structures through robotic fabrication. This paper describes the multi-disciplinary design and construction process of this pavilion that created a structure of out 36 unique components.
wos	WOS:000361384700042
keywords	Bio-inspired; fiber composites; multi-disciplinary design; robotic fabrication; modular system construction
series	eCAADe
email
last changed	2022/06/07 07:52

_id	8d4d
id	8d4d
authors	Leymarie F, Derix C, Miranda P, Coates P, Calderon C
year	2008
title	Medial Representations for driving the Architectural Creative Process
source	International Architecture Symposium, Barcelona, April 2008
summary	Medial representations of shape provide a powerful framework for the analysis and genesis of architectural forms,layouts, landscapes, cityscapes. In this paper we explore their potential use in driving the architectural creative process for 2D and 3D applications. We consider both the aspects of (i) the analysis of exisiting architectural layouts, and (ii) the genesis of novel ones. The archetypal medial representation of shape is the “medial axis” of Harry Blum (circa 1960). Boundary elements, the outline samples of the objects of interest, are used as the source of a wavefront propagation, for which the quenching points constitute axial symmetries. In 2D layout applications the resulting medial axis (MA) takes the form of a graph which unites geometry and topology of the objects and the field they occupy in one single framework. In the following we first survey the topic of shape representation via medial structures and consider their specific use in architectural analysis and genesis. We then report of early works in extending such ideas for novel applications relevant to architecture.
keywords	medial axis, spatial representation, user perception, occupancy
series	book
type	normal paper
email
last changed	2012/09/20 22:05

_id	a606
authors	Leão de Amorim, Arivaldo and Pereira, Gilberto Corso
year	2001
title	ATELIÊ COOPERATIVO DE SIMULAÇÃO DIGITAL EM ARQUITETURA E URBANISMO (Colaborative Studio for Architecture and Urbanism Digital Simulation)
source	SIGraDi biobio2001 - [Proceedings of the 5th Iberoamerican Congress of Digital Graphics / ISBN 956-7813-12-4] Concepcion (Chile) 21-23 november 2001, pp. 124-126
summary	Cooperative Atelier of Digital Simulation is a teaching proposal in that information technologies will be used intensively in the process of architectural design, particularly computer technologies for habitat simulation. In the first learning group, a experimental one - that should begin in the semester 2001.2, the computer will be used as an instrument for modeling, information management (spatial or not), making presentations, evaluation of alternatives and taking decisions, as well as for communication between the students’ teams and teachers of FAUFBA and, of other institutions that come to be integrating the project. The computer technologies could stand for the development of cooperative works. This paper synthesizes the proposal of creation of an optional discipline for students of Architecture and Urbanism.
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	sigradi2006_p018d
id	sigradi2006_p018d
authors	Leão de Amorim, Arivaldo; Nogueira, Fabiano de Souza and Groetelaars, Natalie Johanna
year	2006
title	Em busca de uma Metodologia para Atualização cartográfica com tecnologias alternativas: um estudo de caso [Metodologyc search for a cartographic actualization with alternative technologies: A case study]
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 368-372
summary	This paper presents an experiment using digital photogrammetry for the restitution of urban forms, using precise and low cost techniques, an alternative solution for the cartographic actualization of cities. The technique uses digital cameras (non-metric), with resolution compatible with the precision and scale required for the products. This process simplifies the acquisition of the photos, that can be taken by different places: in the ground, in the top of high buildings or by small airplanes or ultralights, in opposition of the traditional image acquisition method, done by costly aerial photogrammetric flights, realized by specialized companies.
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	sigradi2009_667
id	sigradi2009_667
authors	Leão, Elisângela Conceição Dantas; Arivaldo Leão de Amorim
year	2009
title	Kirimurê: uma aplicação da Modelagem Geométrica na produção da Forma Arquitetônica [Kirimurê: an application of geometric modeling on the synthesis of Architectural Form]
source	SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary	Kirimurê is as Brazilian Indian Tupinambás called the Baia de Todos os Santos. Around the bay developed a region with significant agricultural production, at a time Salvador was the main export port in the Southern Hemisphere. This economic strength and its export potential were greatly due to the saveiro, a small wooden vessel with sail propulsion, which dominated these waters for a long time. Testimony of the Bahia’s history, they had great influence in the culture of Bahia. Currently, these vessels are disappearing and with them the traditional techniques of shipbuilding, intangible heritage, held in memory of the master builders. This paper presents an experience in developing the architectural shape of a complex building using geometric modeling, to house this cultural heritage.
keywords	Saveiros; Reconcavo Baiano; Cultural Heritage; Ship-building; Geometric Modeling; Architectural Design
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	sigradi2007_af17
id	sigradi2007_af17
authors	León-Trujillo, Iván
year	2007
title	Design of products elaborated with laminar materials and textiles. From 3D-CAD models to pattern‘s documentation [Diseño de productos elaborados con textiles y laminares - Del 3D-CAD a la documentación de patrones bidimensionales]
source	SIGraDi 2007 - [Proceedings of the 11th Iberoamerican Congress of Digital Graphics] México D.F. - México 23-25 October 2007, pp. 315-321
summary	This paper expose a way in which we are educating our students in industrial design in Venezuela, particularly at the time when they deal with the design of products with textiles. In one hand, the elaboration of patterns from digital-CAD models is shown. Where stages of exploration in product development of complex articles, the process of “trial and error” has been practically eliminated with the use of a software-CAD. And in the other hand, the documentation of these patterns exhibit that this is not just a drawing of their designs, it will be a way to change the work system in our Small and Medium Industries.
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	ecaade2020_517
id	ecaade2020_517
authors	Lharchi, Ayoub, Ramsgaard Thomsen, Mette and Tamke, Martin
year	2020
title	Connected Augmented Assembly - Cloud based Augmented Reality applications in architecture
doi	https://doi.org/10.52842/conf.ecaade.2020.1.179
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. 179-186
summary	Current design practices rely on a set of computational tools to simulate and optimize the design in regards to questions concerning architecture, engineering, and construction. However, little progress has been made in tools related to the design and execution of a building assembly. This paper aims to present an integrated procedure that targets the assembly of complex structures. Two challenges are identified and addressed: first, the necessity of a connected design environment where multiple stakeholders can communicate, modify, and give feedback on the assembly sequence. Second, the instructions for the assembly of structures to untrained users. The suggested method is based on the Assembly Information Modeling framework, which provides a general approach to generate assembly information from CAD data and utilizes AEC cloud platforms as a base for communication and Augmented Reality devices as a Human Machine Interface. Ultimately, both cases are combined to constitute Connected Augmented Assembly, a bidirectional approach to assembly design, review, and execution.
keywords	assembly sequence; augmented reality; assisted assembly; cloud aec; assembly information modeling
series	eCAADe
email
last changed	2022/06/07 07:52

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