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	88e0
authors	Lee, Y.T., De Pennington, P. and Shaw, N.K.
year	1984
title	Automatic Finite- Element Mesh Generation from Geometric Models : A Point Based Approach
source	ACM Transactions on Graphics. October, 1984. vol. 3: pp. 287-311 : ill. includes bibliography
summary	A novel algorithm for automatic finite-element mesh generation is described. It uses constructive solid geometry to provide the geometric data for the object to be meshed. The geometric definition of the object and a value for the required mesh density are the only inputs. The method consists of two stages: point generation and mesh construction over the points. It has been implemented in two dimensions and is capable of generating predominantly 'good' quadrilateral elements. Triangular elements are only created in circumstances under which quadrilateral elements are not feasible
keywords	solids, geometric modeling, finite elements, analysis, CSG
series	CADline
last changed	2003/06/02 13:58

_id	2006_678
id	2006_678
authors	Lefantzis, Michaelis
year	2006
title	From Survey to Representation of ancient monuments: new methodology and technology - The cases of the Golgotha site in Jerusalem and the Stoa of Eumenes at the South Slope of the Acropolis of Athens
doi	https://doi.org/10.52842/conf.ecaade.2006.678
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 678-682
summary	The purpose of this paper is to present the characteristics of laser scanning technology, based on two examples for the modeling at the reconstruction of the Golgotha site in Jerusalem and the ancient Stoa of Eumenes II, located at the South Slope of the Athens Acropolis. Terrestrial 3D laser scanning is a new methodology for three dimensional object modeling. Especially, the reconstruction of the ancient Stoa of Eumenes II comprises one of the most important restoration programs of the Greek Ministry of Culture. This paper will focus on the main steps of the laser scanning processing chain, starting from the acquisition of the data and ending with the evaluation of the 3D models.
keywords	Golgotha; Eumenes Stoa; Laser scanning; archeological architectural documentation
series	eCAADe
email
last changed	2022/06/07 07:52

_id	0d7d
authors	Lefebvre, Olivier
year	2003
title	The glocal as a challenge for local actors having plans for the future
source	CORP 2003, Vienna University of Technology, 25.2.-28.2.2003 [Proceedings on CD-Rom]
summary	About the glocal very much has been said by Michael Porter . According to this author, in some countries there is a competitive advantage, in some industry . It is explained by a « diamond » with four facets : competition and rivalry inside the country, factors endowment, demand, related industries (providers, firms selling components etc … ) . The competitive advantage appears when the facets are efficient, and stimulating one another, in a country. Then the firms of this country invest abroad, to benefit from thecompetitive advantage, grabing market shares and making profits . The country itself is the place of the competitive advantage . Theinternational market is the place of the challenge, where the result of the competition appears .
series	other
email
last changed	2003/03/11 20:39

_id	ecaadesigradi2019_412
id	ecaadesigradi2019_412
authors	Leit?o de Souza, Thiago, Fialho, Valéria, Bicalho, Giovany, Schelk, Vinicius and Mendes, Isabella
year	2019
title	An Immersive 360° Experience in Rio de Janeiro in the Late 19th Century - The panorama of Victor Meirelles and Henri Langerock
doi	https://doi.org/10.52842/conf.ecaade.2019.3.107
source	Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 3, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 107-114
summary	This essay is related to the research project "The immersive experience in 360°: investigation, representation and digital immersion in the city of Rio de Janeiro in the 19th and 20th centuries", developed at PROURB in FAU-UFRJ, Rio de Janeiro/Brazil. This work will investigate the Panorama of Rio de Janeiro looking for memories and historical truths in its context: Which part represents a historical point of view? Which part is invention? How were the city and its landscape represented on the canvas? As the most well-known Rio de Janeiro's panorama, which project was idealized by the Brazilian painter Victor Meirelles de Lima (1832-1903) and the Belgian photo-painter Henri Charles Langerock (1830-1915), it was exhibited in Brussels 1888, Paris 1889, and Rio de Janeiro 1891-1896, with great recognition in all these cities. This paper will explore this Panorama, its initial studies, its landscape and the architecture depicted, newspapers descriptions of its exhibitions, and mainly, distinguishing among memories, historical truths and verisimilitudes. In order to achieve these objectives, digital and analogical systems of representations, sketches and computer graphics techniques, specially, tridimensional models will be developed and applied.
keywords	Panorama of Rio de Janeiro; Immersive experience in 360°; Geolocation; Virtual Reality; Digital Technologies; Cultural Heritage
series	eCAADeSIGraDi
email
last changed	2022/06/07 07:52

_id	sigradi2023_218
id	sigradi2023_218
authors	Leitao de Souza, Thiago, Gaspar Vereza, Carolina, Biz Medina, Jonatham, de Oliveira Milhm, Julio, Boner da Silva, Gabriel, Apostolo dos Santos Freire Salvador, Lucas, Ferreira Santos, Victor, Pousas Puig, Joao Gabriel and Henriques Monzatto de Mattos, Felipe
year	2023
title	Game Engines in the Historical Landscape: Interchangeable Layers of the City in Victor Meirelles and Henri Langerock's Panorama of Rio de Janeiro
source	García Amen, F, Goni Fitipaldo, A L and Armagno Gentile, Á (eds.), Accelerated Landscapes - Proceedings of the XXVII International Conference of the Ibero-American Society of Digital Graphics (SIGraDi 2023), Punta del Este, Maldonado, Uruguay, 29 November - 1 December 2023, pp. 865–874
summary	This work is part of an ongoing research entitled “The 360- immersive: investigation, representation and digital immersion of Rio de Janeiro city during 19th and 20th centuries”, which aims at the theoretical, conceptual and instrumental analysis and discussion of the Panorama of Rio de Janeiro by Victor Meirelles and Henri Langerock in the Unity Game Engine. It presents an historical-interpretive method with application in Digital Graphics. To this end, it was considered necessary: to recreate the 360- immersive experience of the Panorama in real time; its context experience during the historical layers of 1885, 1915, 2020, and a fourth combination between previous layers, based in specific geometric models; programming in C# the movement of the player-observer, scenes, interaction with objects and the player's own navigation through the game menu.
keywords	Virtual Reality, City History, Immersive Experience in 360°, Panorama of Rio de Janeiro, Game Engines.
series	SIGraDi
email
last changed	2024/03/08 14:07

_id	sigradi2022_194
id	sigradi2022_194
authors	Leitao de Souza, Thiago; Vereza, Carolina; Boner, Gabriel; Reis, Hugo; Apostolo Salvador, Lucas; Milhm, Julio
year	2022
title	Game Engines in the Historical City: the Panorama of Rio de Janeiro by Victor Meirelles and Henri Langerock
source	Herrera, PC, Dreifuss-Serrano, C, Gómez, P, Arris-Calderon, LF, Critical Appropriations - Proceedings of the XXVI Conference of the Iberoamerican Society of Digital Graphics (SIGraDi 2022), Universidad Peruana de Ciencias Aplicadas, Lima, 7-11 November 2022 , pp. 663–674
summary	This essay is part of an ongoing research entitled “The 360? immersive: investigation, representation and digital immersion of Rio de Janeiro city during 19th and 20th centuries”, developed in Universidade Federal do Rio de Janeiro / Programa de Pós-Graduçao em Urbanismo, Brazil, which presents, analyses and discuss in a theoretical-conceptual approach The Panorama of Rio de Janeiro, by Victor Meirelles and Henri Langerock by the Unity Game Engine. To achieve this 360? immersion experience a methodological path was developed: restitution of the Panorama and its visualization in real time; the transition from the Lumion model to the Unity Game Engine; resizing the model scale; the immersive experience beyond the observation platform: the faux-terrain experienced; viewer movement, scenes, scripts, and navigation menus.
keywords	Panorama, Virtual Reality, City History, 360° Immersive Experience, Rio de Janeiro Panorama, Game Engines
series	SIGraDi
email
last changed	2023/05/16 16:56

_id	sigradi2009_748
id	sigradi2009_748
authors	Leite, Denivaldo Pereira; Rafael Cunha Perrone
year	2009
title	Inventory of Modern Arquitecture Virtual Reconstruction of Public Buildings at Santo André, São Bernardo do Campo e São Caetano do Sul [Inventory of Modern Architecture: Virtual reconstruction of public buildings at Santo André, São Bernardo do Campo e São Caetano do Sul (1960 – 1973)]
source	SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary	The object of this research, is identify and quantify the Public Architecture of some cities near form the city of São Paulo (Santo André, São Bernardo do Campo e São Caetano do Sul), during the years of 1960 till 1973. This research looks to realize a documental reference for new researchs, and to help in process of preservation, and the most important, give a new value to the buildings studied in this work. In the case and period studied, the documentatin is very important, because shows, in general lines, a production that is part of what is called “Arquitetura Brutalista Paulista”.
keywords	virtual reconstruction; Modern Arquitecture; ABC paulista region
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	sigradi2007_af69
id	sigradi2007_af69
authors	Leite, Julieta Leite
year	2007
title	Spatial (in)formations: How’s interface between the urban space and the virtual space? [(in)formações espaciais: Que interface entre o espaço urbano e o espaço virtual?]
source	SIGraDi 2007 - [Proceedings of the 11th Iberoamerican Congress of Digital Graphics] México D.F. - México 23-25 October 2007, pp. 355-358
summary	This article contributes to comprehend how socialization by communication networks influences the dynamics of use and occupation of city spaces. The urban space is analyzed according the relations between the electronic spaces and the social space of every day. It interests us how the physical structures of urban spaces and the virtual space contribute to shape one single space, as an interface relational, that serve to organizing and representing the collectivity that use them.
keywords	Urban space; cyberspace; social space; ubiquity
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	sigradi2007_af100
id	sigradi2007_af100
authors	Leitão de Souza, Thiago; Roberto Segre
year	2007
title	The Digital Panorama: Connections of the urban centralities in Rio de Janeiro [O Panorama Digital: Costuras urbanas nas centralidades do Rio de Janeiro]
source	SIGraDi 2007 - [Proceedings of the 11th Iberoamerican Congress of Digital Graphics] México D.F. - México 23-25 October 2007, pp. 323-326
summary	This article intends to investigate the meaning of Digital Panoramas as a tool to develop an alternative reading of the urban centralities in the city of Rio de Janeiro. We assume that Digital Panorama can bring significant contributions to urban research, in three different historical layers: at the beginning of 20th century; during the 20-40’s decades, and in the current days. The strength of panoramas in urban study is particularly enhanced by interactivity. This paper aims to demonstrate new possibilities in the association of panorama’s space recognition characteristic for historical study in urban centralities.
keywords	Panorama Digital; Multimídia; Modelos tridimensionais; História da Cidade
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	4b7e
authors	Lemay
year	1996
title	3D Graphics and VRML 2
source	Sams Publishing
summary	This is the easiest way for readers to learn how to add three-dimensional virtual worlds to Web pages. It describes the new VRML 2.0 specification, explores the wide array of existing VRML sites on the Web, and steps the reader through the process of creating their own 3-D Web environments. - Contains complete coverage of VRML 2.0 - Teaches how to create 3D worlds on the Web
series	other
last changed	2003/04/23 15:14

_id	96eaea2001
id	96eaea2001
authors	Lengyel, Dominik
year	2002
title	The Presentation is the Project
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	Projects which have not been realised live only in the imagination – at first in the heads of the builders, architects and planners and later in the heads of the general public. Sooner or later, the idea takes on the form of a presentation and here vividness is a decisive factor in the persuasive power of the project itself. Architectural visualisation draws on the experience of photography and painting and employs their instruments and techniques to generate a suggestion of reality. The preliminary planning of a visualisation means working out the essential aspects of a project.
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	eaea2009_lengyel_toulouse
id	eaea2009_lengyel_toulouse
authors	Lengyel, Dominik; Catherine Toulouse
year	2011
title	Visualisation of Uncertainty in Archaeological Reconstructions
source	Projecting Spaces [Proceedings of the 9th European Architectural Endoscopy Association Conference / ISBN 978-3-942411-31-8 ], pp. 45-52
summary	Archaeological research begins with historical remains and ends with hypotheses that base on analogies and probabilities. Well conserved remains allow a more fundamental reconstruction even in three dimensions whereas sometimes there are only vague contours. Therefore the visualisation of e.g. an ancient city only partly relies on research, other parts can be entirely hypothetic. Static models are incapable of representing both at the same time: the hypothesis and the uncertainty implied. In most cases the uncertainty varies within a hypothesis, parts of a city or building are more likely than others, some hypotheses even contradict each other. Grades of uncertainty require an adequate visual reprentation in order to visually explain hypothesis and uncertainty. In the field of archaeology an adequate method has not been established yet. In this work we explore the application of methods of architectural visualisation in order to express scientific uncertainty gradually between reconstruction and hypothesis. During the last two years we worked on several archaeological sites with emphasis on the ancient Pergamon.
series	other
more	http://info.tuwien.ac.at/eaea
last changed	2011/03/04 08:45

_id	4db7
authors	Lentz, Uffe
year	1992
title	MultiMedia in Architectural Education
doi	https://doi.org/10.52842/conf.ecaade.1992.085
source	CAAD Instruction: The New Teaching of an Architect? [eCAADe Conference Proceedings] Barcelona (Spain) 12-14 November 1992, pp. 85-90
summary	At nearly any occasion designers are encouraged to see, use or buy new persuasive electronic media. We are presented to a stack of electronic equipment, connected with a bunch of confusing wire. On the top of it all you will find a video camera and some huge loudspeakers.
series	eCAADe
email
last changed	2022/06/07 07:52

_id	sigradi2016_360
id	sigradi2016_360
authors	Leonard, Francisca Rodríguez
year	2016
title	Evaluación de las condiciones de orientación temporal en programas de modelación lumínica [Evaluation of temporal orientation conditions in lighting simulation software]
source	SIGraDi 2016 [Proceedings of the 20th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-7051-86-1] Argentina, Buenos Aires 9 - 11 November 2016, pp.446-452
summary	The study analyzes three basic visual aspects of light (Spatial distribution of brightness, shadows and color of light) in their ability to communicate temporal information by modeling two specific scenarios using different lighting simulation software (DIALux and Relux). The results confirm the potentiality of natural light to assess temporal disorientation in indoor environments. At the same time, the study proposes new opportunities for improving natural light representation in the simulation field.
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	ecaade2020_333
id	ecaade2020_333
authors	Lescop, Laurent and Suner, Bruno
year	2020
title	Designing Intradiegetic and Extradiegetic Spaces for Virtual Reality
doi	https://doi.org/10.52842/conf.ecaade.2020.2.545
source	Werner, L and Koering, D (eds.), Anthropologic: Architecture and Fabrication in the cognitive age - Proceedings of the 38th eCAADe Conference - Volume 2, TU Berlin, Berlin, Germany, 16-18 September 2020, pp. 545-554
summary	Fictions for virtual reality are mostly conceived either in an entirely virtual environment or in a real environment with very little transformation. It is infinitely rare to find examples of sets designed and built specifically for a 360° experience. Building, rather than remaining purely virtual, raises complex questions about the organization of a "space to play" and therefore how to produce a narrative for immersion and create a 360° film grammar.We thus have created a first 360° set for the famous director Marc Caro, for whom the question of off-screen raised a very complex technical problem regarding lighting, visual effects, staging, blocking and acting. In this contribution we will show how this was solved and why the definition of a 360° narrative grammar is crucial. These are important intricacies that place the user-spectator in the optimal conditions to appreciate the experience.
keywords	360° cinema; Virtual Reality; Methodology and pedagogy; narrative grammar; Set construction; Isovist 3D
series	eCAADe
email
last changed	2022/06/07 07:52

_id	eaea2015_t1_paper04
id	eaea2015_t1_paper04
authors	Lesko, Thomas M.
year	2015
title	Adaptive Interventions: Lessons learned from the Parlor City
source	ENVISIONING ARCHITECTURE: IMAGE, PERCEPTION AND COMMUNICATION OF HERITAGE [ISBN 978-83-7283-681-6],Lodz University of Technology, 23-26 September 2015, pp.49-60
summary	This paper explores the historic, sustainable, physical and economic aspects of the architectural adaptation of an important heritage district of a once vibrant, light manufacturing, Victorian era urban environment. The focus is on the cultural heritage center of that area, at the crossroads of rail and water transportation, so fundamental to the area’s development and to the immigrant eastern-european workers who found a new home there.
keywords	adaptive intervention; architecture; preservation
series	EAEA
email
last changed	2016/04/22 11:52

_id	a015
authors	Leu, S.-S., Chen, C.-N. and Chang, S.-L.
year	2001
title	Data mining for tunnel support stability: neural network approach
source	Automation in Construction 10 (4) (2001) pp. 429-441
summary	This paper presents a data mining approach to the prediction of tunnel support stability using artificial neural networks (ANN). The case data of a railway tunnel recently finished in Taiwan were used to establish the model. The main rock type was sedimentary rock. Rock mechanical and construction-related parameters with significant influences on support stability were filtered to train and test the ANN. Validation was also performed to show that the ANN outperformed the discriminant analysis and the multiple non-linear regression method in predicting tunnel support stability status.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	1b04
authors	Leu, S.-S., Yang, C.-H. and Huang, J.-C.
year	2000
title	Resource leveling in construction by genetic algorithm-based optimization and its decision support system application
source	Automation in Construction 10 (1) (2000) pp. 27-41
summary	Traditional analytical and heuristic approaches are inefficient and inflexible when solving construction resource leveling problems. A computational optimization technique, genetic algorithms (GAs), was employed in this study to overcome drawbacks of traditional construction resource leveling algorithms. The proposed algorithm can effectively provide the optimal or near-optimal combination of multiple construction resources, as well as starting and finishing dates of activities subjected to the objective of resource leveling. Furthermore, a prototype of a decision support system (DSS) for construction resource leveling was also developed. Construction planners can interact with the system to carry out ad hoc analysis through "what-if" queries.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	caadria2019_473
id	caadria2019_473
authors	Leung, Emily, Butler, Andrew, Asher, Rob, Gardner, Nicole and Haeusler, M. Hank
year	2019
title	Redback BIM - Developing a Browser-based Modeling Application Software Taxonomy
doi	https://doi.org/10.52842/conf.caadria.2019.1.775
source	M. Haeusler, M. A. Schnabel, T. Fukuda (eds.), Intelligent & Informed - Proceedings of the 24th CAADRIA Conference - Volume 1, Victoria University of Wellington, Wellington, New Zealand, 15-18 April 2019, pp. 775-784
summary	Browser-based platforms (Google Docs or Minecraft) have instigated the value of collaborative environments. Browser-based modelling point out a future for the AEC industry. Yet at present no literature review nor a taxonomy of browser-based modelling platforms exist. A key outcome of a unique taxonomy framework of existing BMA characteristics reveals that current BMAs do not take full advantage of the web's unique capabilities such as centralising data across multiple tools within an 'ecosystem'. Consequently, this taxonomy has productively guided the development of Redback BIM, a proof-of-concept BMA that enables the coordination of BIM data in a collaborative online context. Redback BIM further demonstrates how, through establishing a universal data-type, a diverse range of scripts can be consolidated together in an online platform to enable greater accessibility for a range of AEC professionals towards improved project communication and efficiency.
keywords	Web 2.0; browser-based modelling; taxonomy; software development; standardisation of processes
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	caadria2021_124
id	caadria2021_124
authors	Leung, Pok Yin Victor, Apolinarska, Aleksandra Anna, Tanadini, Davide, Gramazio, Fabio and Kohler, Matthias
year	2021
title	Automatic Assembly of Jointed Timber Structure using Distributed Robotic Clamps
doi	https://doi.org/10.52842/conf.caadria.2021.1.583
source	A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 1, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 583-592
summary	This paper presents a novel robotic assembly method for timber structures with integral timber joints, specifically, crossed-half-lap joints. The proposed method uses a set of custom-built, remote-controlled, high-force robotic clamps to operate in collaboration with an industrial robotic arm to overcome challenges of robotic timber joint assembly, such as providing large assembly forces and correcting misalignments. This method enables automatic assembly of non-repetitive and spatially connected timber structures. We developed custom software for modelling, visualization and feasibility-checking for structures compatible with the proposed assembly method. As a proof of concept, we designed and robotically assembled a spatial frame structure (4.8 x 3.0m footprint, 3.4m tall) comprising 40 pieces of 100x100mm profile timber elements.
keywords	Robotic Assembly; Spatial Timber Structure; Wood Joints; Distributed Robots
series	CAADRIA
email
last changed	2022/06/07 07:52

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