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	ae09
authors	Lieberman, Henry
year	1985
title	There's More to Menu Systems Than Meets the Screen
source	SIGGRAPH '85 Conference Proceedings. July, 1985. vol. 19 ; no. 3: pp. 181-189 : ill. includes bibliography
summary	Love playing with those fancy menu-based graphical user interfaces, but afraid to program one yourself for your own application? Do windows seem opaque to you? Are you scared of Mice? Like what-you-see-is-what-you-get but don't know how to get-what-you-want-to-see on the screen? Everyone agrees using systems like graphical document illustrators, circuit designers, and iconic file systems is fun, but programming user interfaces for these systems isn't as much fun as it should be. Systems like the Lisp Machines, Xerox D- Machines, and Apple Macintosh provide powerful graphics primitives, but the casual applications designer is often stymied by the difficulty of mastering the details of window specification, multiple processes, interpreting mouse input, etc. This paper presents a kit called EZWin, which provides many services common to implementing a wide variety of interfaces, described as generalized editors for sets of graphical objects. An individual application is programmed simply by creating objects to represent the interface itself, each kind of graphical object, and each command. A unique interaction style is established which is insensitive to whether commands are chosen before or after their arguments. The system anticipates the types of arguments needed by commands preventing selection mistakes which are a common source of frustrating errors. Displayed objects are made 'mouse-sensitive' only if selection of the object is appropriate in the current context. The implementation of a graphical interface for a computer network simulation is described to illustrate how EZWin works
keywords	user interface, computer graphics
series	CADline
last changed	1999/02/12 15:09

_id	c937
authors	Liebowitz, D., Criminisi, A. and Zisserman, A.
year	1999
title	Creating architectural models from images
source	EUROGRAPHICS'99
summary	We present methods for creating 3D graphical models of scenes from a limited numbers of images, i.e. one or two, in situations where no scene co-ordinate measurements are available. The methods employ constraints available from geometric relationships that are common in architectural scenes - such as parallelism and orthogonality - together with constraints available from the camera. In particular, by using the circular points of a plane simple, linear algorithms are given for computing plane rectification, plane orientation and camera calibration from a single image. Examples of image based 3D modelling are given for both single images and image pairs.
series	other
last changed	2003/04/23 15:14

_id	b76e
authors	Liggett, Robin S.
year	2000
title	Automated facilities layout: past, present and future
source	Automation in Construction 9 (2) (2000) pp. 197-215
summary	This paper reviews the history of automated facility layout, focusing particularly on a set of techniques which optimize a single objective function. Applications of algorithms to a variety of space allocation problems are presented and evaluated. Guidelines for future implementations of commercial systems are suggested.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	caadria2023_406
id	caadria2023_406
authors	Lim, Chor-Kheng
year	2023
title	Gesture Modeling – In Between Nature and Control
doi	https://doi.org/10.52842/conf.caadria.2023.1.189
source	Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 189–198
summary	This research develops a robotic arm-controlled wax material fluidity shape/form-making system that combines AI image recognition and remote control capabilities. AI image recognition is used to capture the designer's hand gestures or movements as an intuitive input method for controlling shape forming. It gives the designer active control of the desired model shape through the temperature, rotation, and movement controls in the process of phase change of wax materials. The system has the additional advantage of remote control, allowing designers to create wax models remotely through intuitive gesture-controlled interactions. This advantage will become a new method of the digital co-creation process.
keywords	Form-finding, Gesture Modeling, Wax, Phase Change Material, Robotic-arm Controlled
series	CAADRIA
email
last changed	2023/06/15 23:14

_id	cdrf2022_52
id	cdrf2022_52
authors	Yixuan Zeng, Qiaoming Deng, and Yubo Liu
title	Research on the Spatial Layout Design of University Educational Buildings Based on Rule Screening and Multi-agent System
doi	https://doi.org/https://doi.org/10.1007/978-981-19-8637-6_5
source	Proceedings of the 2022 DigitalFUTURES The 4st International Conference on Computational Design and Robotic Fabrication (CDRF 2022)
summary	Unlike traditional empiricism-based building design, the data-oriented quantitative analysis method is more rigorous and intuitive, taking into account a variety of factors such as site conditions, functional requirements and design specifications, and combining computer technology to propose a more rational and efficient design strategy. This study takes the design logic process and algorithm rule screening as the entry point to explore the design method of using multi-agent body algorithm planning to realize the spatial layout of university education buildings. Based on multi-agent algorithms, spatially rich and morphologically complex architectural solutions can be quickly generated, and new designs with generality and universality can be produced by changing the initial shape and syntax rules. The authors attempt to design a program based on a multi-agent body system, where architects only need to set initial parameters to quickly construct a variety of initial volume solutions, offering a wide range of possibilities for initial design.
email
last changed	2024/05/29 14:02

_id	sigradi2007_af80
id	sigradi2007_af80
authors	Lima, Denise; Juliana de Oliveira Taschetto; Felipe Etchegaray Heidrich
year	2007
title	Digital graphical study of simulation of the visual results of the application of regulating norms for the visual communication of commercial building [Estudo gráfico digital de simulação dos resultados visuais da aplicação de normas reguladoras para a comunicação visual de prédios comerciais]
source	SIGraDi 2007 - [Proceedings of the 11th Iberoamerican Congress of Digital Graphics] México D.F. - México 23-25 October 2007, pp. 327-331
summary	Beyond importance of the visual communication in a consumption society and of the necessity of perfect integration of this with the urban landscape, in the Brazil, cities searched to create regulation norms with the objective to organize some types of external visual communication. This study it shows the digital visualization with application of specific norms through the digital graphical resources. The previous visualization is important to test the viability and to foresee the result in the urban landscape. With norms' application, the visual communication of the marks will be more appreciated and the buildings will have their architecture respected.
keywords	Digital graphical; Visual communication; Urban landscape; Regulating norms
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	d2fb
authors	Lima, F.C., Nunes Cosenza, C.A., Lima, P.R. and Rheingantz, P.A.
year	2001
title	MAQUETE VIRTUAL APLICADA EM DIAGNÓSTICO DE ADEQUAÇÃO: EDIFÍCIO CORPORATIVO DO INPI / RJ - BRASIL (Virtual Model Applied to Adequacy Diagonosis: INPI Corporate Building (Rio de Janeiro - Brasil))
source	SIGraDi biobio2001 - [Proceedings of the 5th Iberoamerican Congress of Digital Graphics / ISBN 956-7813-12-4] Concepcion (Chile) 21-23 november 2001, pp. 291-294
summary	This paper presents a case study were computer aided graphic modelling was applied for environmental diagnostics of the INPI building at Rio de Janeiro. The research improved a walk-thought analysis in order to identify user conditions (ergonomics, layout, maintenance, security, etc.). Using CAD / PC, we developed a virtual model of the building and its workspaces, and both the results of diagnosis applied forms, updated plants and photos were organised in the virtual model, linked to a database containing tables with elements of the case study. This database is intended to support decisions in organisational planning, by query (SQL routines) on virtual model (CAD), providing graphically visualised answers and extracts of data search results.
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	sigradi2014_189
id	sigradi2014_189
authors	Lima, Fernando Rodrigues; Patricia Estevão dos Santos, Emanuel Filipe de Alarcão Melo de Moraes
year	2014
title	Emprego de Sistema de Informações Geográficas (SIG) na Modelagem e Monitoramento de um Campus Universitário [Geographic Information Systems (GIS) applied to an University Campus modeling and monitoring]
source	SiGraDi 2014 [Proceedings of the 18th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-9974-99-655-7] Uruguay - Montevideo 12 - 14 November 2014, pp. 512-515
summary	This paper presents a research on GIS to organize the available data from infrastructure and facilities in a University campus. It integrates and compiles a range of data under ontology that will permit the enhancement of geographic database regarding monitoring and control systems. The team worked with campus administration using desktop hardware and software to consolidate information about water, sewage, energy and other networks at backbone scale. The boundaries of buildings, parking, streets and land use were also included. The geographic features and tables assigned are intended to work under WebGIS, mobile device, participative platforms, BIM structures and 3D simulation.
keywords	GIS; Digital graphic modeling; Urban engineering; University campus
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	ecaade2016_032
id	ecaade2016_032
authors	Lima, Fernando, Montenegro, Nuno, Beir?o, José Nuno and Kos, Jose
year	2016
title	Computational Approach for the Assessment of Transit Oriented Development Principles - A multivariate optimization method for urban planning
doi	https://doi.org/10.52842/conf.ecaade.2016.2.031
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. 31-40
summary	This paper presents a computational approach to provide dynamic assessment and optimization of principles derived from Transit Oriented Development (TOD) - an urban development model that advocates compact, walkable, and mixed-use neighborhoods, centered around transport stations. In spite of being increasingly promoted in several cities of the world, TOD lacks an approach that addresses multivariate data for optimization of its principles. In this paper, we propose a methodology backed by an algorithmic-parametric CAD environment, applied to a neighborhood unit in a case study. The objective is the analysis and improvement of TOD relevant and measurable features (transit accessibility, walkability and diversity) in order to optimize neighborhoods' features. The ultimate goal is to facilitate the management of solutions in TOD planning processes, supported by a principle-index-tool approach triad.
wos	WOS:000402064400002
keywords	Transit Oriented Development; Multi-objective optimization; Computational urban planning;
series	eCAADe
email
last changed	2022/06/07 07:59

_id	sigradi2016_426
id	sigradi2016_426
authors	Lima, Fernando; Kos, Jose Ripper; Montenegro, Nuno
year	2016
title	Otimizaç?o multi-objetivo e Desenvolvimento Orientado pelo Transporte: algoritmos evolutivos em estratégias de planejamento urbano [Multi-objective optimization and Transit Oriented Development: evolutionary algorithms in urban planning strategies]
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.601-608
summary	This paper presents a computational approach to provide assessment and optimization of principles from Transit Oriented Development (TOD) - an urban development model that advocates compact, walkable, and mixed-use neighborhoods, centered around transport stations. In spite of being increasingly promoted around the world, TOD lacks an approach that addresses multivariate data for optimization of its principles. In this paper, we propose an algorithmic-parametric methodology, applied to a neighborhood unit in a case study. The objective is to demonstrate the potential of algorithmic approaches towards a more dynamic management of the large amount of data involved in DOT implementation methodologies.
keywords	Transit Oriented Development; Multi-objective optimization; Urban planning
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	sigradi2013_238
id	sigradi2013_238
authors	Lima, Fernando; Vinícius Morais; Frederico Braida; Raiane Duque
year	2013
title	Protótipo Virtual a partir da Plataforma BIM: Uma Base Digital de Dados para Estudos Simulativos de Cenários Ambientais e Mapeamento de Infra-estrutura [Virtual Prototype from the BIM platform: A digital Database for Environmental Simulation Studies and Infrastructure Mapping]
source	SIGraDi 2013 [Proceedings of the 17th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-7051-86-1] Chile - Valparaíso 20 - 22 November 2013, pp. 297 - 301
summary	In this article is presented some results of the studies and data obtained in the undergraduates’ research project linked to the Architecture and Urbanism curse of the Federal University of Juiz de Fora (UFJF), in which a digital evaluative approach of environmental performance of buildings in the campus is pursued. In this paper is reported the unfolding of this research project that aims to develop a virtual prototype in Building Information Modelling platform of a campus construction, and its application in environmental simulation studies as well as the management of the building´s information as-built.
keywords	Virtual Prototype; Building Information Modeling; Simulation Studies
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	sigradi2018_1312
id	sigradi2018_1312
authors	Lima, Fábio
year	2018
title	About (relatively) common operations in digital architectures
source	SIGraDi 2018 [Proceedings of the 22nd Conference of the Iberoamerican Society of Digital Graphics - ISSN: 2318-6968] Brazil, São Carlos 7 - 9 November 2018, pp. 31-36
summary	Many different types of algorithms have been associated to gain complex shapes. They give rise to a large set of unusual forms, through calculations based on computational geometries, self-organizing systems, rule-based systems, and optimization, often still assembled in morphogenesis principles. Many of these discoveries mimic physical, chemical, and even behavioral principles at the edge of this code-translated knowledge. Thus, any new form, the result of this exploratory perspective, can mean some progress. If the understanding of specific algorithmic characteristics has validity (for precise programming), generic concepts are also important for simplifying procedures and presenting general concepts of the result.
keywords	Digital architecture; Computational geometry; Visual expression; Syntax generalities
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	sigradi2015_10.250
id	sigradi2015_10.250
authors	Linardi, Ana Beatriz; Ramos, Fernando da Silva; Garotti, Flavio Valverde; Damiani, Vitor
year	2015
title	3D printing as support for arts education for the visually impaired
source	SIGRADI 2015 [Proceedings of the 19th Conference of the Iberoamerican Society of Digital Graphics - vol. 2 - ISBN: 978-85-8039-133-6] Florianópolis, SC, Brasil 23-27 November 2015, pp. 564-568.
summary	This article discusses some methodologies in art education in schools and educational activities in museums. It focuses on accessibility and in the visually impaired rights to access and improve the experiences and repertoire in artistic languages, recognizing the use of new technologies in the field of digital manufacturing as valuable resources for the production of teaching materials with the use of cheaper and accessible technology, which expands the access to cultural institutions and education. Considering that most of the museums art works are not to be touched, 3D printing reproductions in durable low cost plastic present as an alternative for tactile experience. In addition, the photogrammetric 3D scanning process and digital editing allow for the creation of isolated parts and materials originated from the art piece, broadening the pedagogical possibilities of art educators. The production of didactic material for arts teaching, with the use of 3D printed copies (edited or not) originated from 3D scans, may help revealing a more subtle and sophisticated aspect of artistic narrative to the public and the visually impaired.
keywords	Education, Art, 3D Scan, 3D Printing
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	3e01
authors	Linnert, C., Encarnacao, M., Storck, A. and Koch, V.
year	2000
title	Virtual Building Lifecycle - Giving architects access to the future of buildings by visualizing lifecycle data
source	ICCCBE8, Stanford, August 2000
summary	Today’s software for architects and civil engineers is lacking support for the evaluation and improvement of building lifecycles. Facility Management Systems and 4D-CAD try to integrate lifecycle data and make them better accessible, but miss the investigation of the development of the structure itself. Much money is inappropriately spent when materials with different life expectancies are combined in the wrong way and building parts are repaired or replaced too early or too late. With the methods of scientific visualization and real-time 3Dgraphics these deficiencies can be eliminated. The project “Virtual Building Lifecycle” (short VBLC, [W-VBLC]) connects 3D geometrical information to research data such as life expectancy and emissions and to standard database information like prices. The automated visualization of critical points of the structure in the past, presence and future is a huge advantage and helps engineers to improve the duration of the lifecycle and reduce the costs.
keywords	Visualization; lifecycle; virtual building; realtime 3D graphics; architectural database; 4D-CAD; Facility Management
series	other
email
last changed	2003/02/26 18:58

_id	sigradi2009_955
id	sigradi2009_955
authors	Lino, Sulamita Fonseca; Clarisse Martins Vilella; Cezar Augusto Figueredo
year	2009
title	Architecture without ‘a form of use’ [Architecture without "a form of use"]
source	SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary	The objective of this paper is to present the methodology used in the Computer graphics applied to architecture class, its potentialities and limitations, and preliminary conclusions. The premises of the course were: to discuss the relation between the architect and the users of architecture, considering that the spaces of the architecture must be projected without “a form of use”, and to teacher the students in the use of software being aimed at the elaboration of spaces in flexible form.
keywords	Architecture; users; flexibility
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	67c9
authors	Lipski, Witold Jr. and Preparata, Franco P.
year	1980
title	Finding the Contour of a Union of Iso-Oriented Rectangles
source	Journal of Algorithms. Academic Press Inc., January, 1980. pp. 235-246 : some ill. a short bibliography
summary	In this paper the following geometric problem is considered. Let R1,...,Rm be rectangles on the plane with sides parallel to the coordinate axes. An algorithm is described for finding the contour of F = R1, U...U Rm, in O(m log m+p log(2m2/p)) time, where p is the number of edges in the contour. This is O(m2) in the general case, and o(m log m) when F is without holes (then p < 8m - 4); both of these performances are optimal
keywords	rectangles, geometry, computational geometry, algorithms
series	CADline
last changed	2003/06/02 10:24

_id	3c37
authors	Lira, Roberto O. and Vidal, Claudia G.
year	2002
title	Evaluación de un instrumento para medir el acceso a equipamientos urbanos: el caso de Concepción [Tool evaluation to measure the access to urban equipment: Concepcion's case]
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 101-104
summary	The paper explains the evaluation of an instrument, based on a GIS to asses the level of proximity of neighborhood locations to urban services and facilities. Starting from a selected set of these, circles are drawn on a city map with radii representing neighborhood access. The areas within the circles are identified as having a certain level of access. Neighborhood locations within the intersection of two or more of these circles are assigned increasing levels of access. The result is an “access map” atthe city level which represents the amount of services or “urban benefits” that a person can get from a specific neighborhood location. This map is then compared to population distribution and analyzed in terms of deficit of services and facilities.
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	aba4
authors	Lischinski, D. Tampieri, F. and Greenberg, D.P.
year	1992
title	Discontinuity Meshing for Accurate Radiosity
source	IEEE Computer Graphics & Applications, November 1992, pp.25-38
summary	We discuss the problem of accurately computing the illumination of a diffuse polyhedral environment due to an area light source. We show how umbra and penumbra boundaries and other illumination details correspond to discontinuities in the radiance function and its derivatives. The shape, location, and order of these discontinuities is determined by the geometry of the light sources and obstacles in the environment. We describe an object-space algorithm that accurately reproduces the radiance across a surface by constructing a discontinuity mesh that explicitly represents various discontinuities in the radiance function as boundaries between mesh elements. A piecewise quadratic interpolant is used to approximate the radiance function, preserving the discontinuities associated with the edges in the mesh. This algorithm can be used in the framework of a progressive refinement radiosity system to solve the diffuse global illumination problem. Results produced by the new method are compared with ones obtained using a standard radiosity system.
series	journal paper
last changed	2003/04/23 15:50

_id	4e6e
authors	Liu, Clive K. and Eastman, Charles M.
year	1981
title	Object Grammars : Language for the Generation of Masonry Designs
source	20 p. ; ill April, 1981. includes bibliography.
summary	Bricks, one of the oldest manufactured building materials, are used extensively in construction. Usually they are built into wall assemblies. In this paper, the construction of traditional masonry designs are investigated. Object grammars are defined for the recursive generation of the 3 dimensional wall designs. Also, the uses of object grammars are discussed
keywords	shape grammars, objects, synthesis, assemblies, architecture, applications
series	CADline
email
last changed	2003/06/02 13:58

_id	c327
authors	Liu, Clive K.
year	1981
title	A Graphic Processor for Computer-Aided Engineering Drawing
source	October, 1981. 7 p
summary	A drafting system whose purpose of is to provide an advanced tool for teaching engineering drawing and as a production tool for designers who regularly produce engineering drawings is described. The graphic processor is part of the system, which incorporates a set of operations that produce and manipulate graphic entities and that require graphic entities as operands. This paper examines the issues of constructing such a processor. Representations are proposed for 2D graphic objects, including points, line segments and segments generated by conic sections; which are predefined data types in the system. The geometric primitive operators take these objects as arguments and produce other graphic objects, and allow users to build up various construction operators and drawings with the same flexibility and generality allowed in, say, descriptive geometry. These operators, which are functions, can be combined as macro expressions that executed by the processor. This environment allows users to define their own macros for various tasks
keywords	CAD, drafting, education, tools
series	CADline
last changed	2003/06/02 13:58

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