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	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	ecaade2021_059
id	ecaade2021_059
authors	Lim, Ariel Cheng Sin and Thomsen, Mette Ramsgaard
year	2021
title	Multi-Material Fabrication for Biodegradable Structures - Enabling the printing of porous mycelium composite structures
doi	https://doi.org/10.52842/conf.ecaade.2021.1.085
source	Stojakovic, V and Tepavcevic, B (eds.), Towards a new, configurable architecture - Proceedings of the 39th eCAADe Conference - Volume 1, University of Novi Sad, Novi Sad, Serbia, 8-10 September 2021, pp. 85-94
summary	Our awareness of the earth's depleting resources has directed focus towards biomaterials, which can be extracted sustainably and biodegraded after use. Current fabrication of biomaterial structures is still restricted in strength and geometry, limiting its use in construction. This paper presents a novel two-phase multi-material fabrication process to create mycelium composite structures of higher porosity and complexity with speculated improvements in strength. First, cellulose pulp inoculated with mycelium is extruded. Then, each layer is filled by a secondary supporting material. This material, in the form of a gravel- and sand-slurry, acts as an inhospitable medium steering mycelial growth, additionally improving aeration to produce stronger structures. After an intermediate growth period, the secondary material, reusable in a closed-loop production model, is removed to reveal the fully-grown mycelium structure. The paper reports on each of the three aspects: the fabrication process, material experimentation of primary and secondary substrates, as well as geometry of varying porosity and performance.
keywords	biomaterials; mycelium; biodegradable structures; robotic fabrication; additive manufacturing
series	eCAADe
email
last changed	2022/06/07 07:59

_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	caadria2018_268
id	caadria2018_268
authors	Lim, Joie, Janssen, Patrick and Stouffs, Rudi
year	2018
title	Automated Generation of BIM Models from 2D CAD Drawings
doi	https://doi.org/10.52842/conf.caadria.2018.2.061
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 2, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 61-70
summary	Existing buildings are often lacking BIM models. This paper proposes a method to semi-automate the generation of BIM models from 2D CAD drawings. The method has two parts: the first part, 2D CAD drawing preparation, involves cleaning the drawings to obtain simplified 2D input geometry and the second, 3D BIM model generation, involves generating and extracting parameters to generate 3D BIM components. This research focuses on the semi-automation of the second part. The the model is generated storey by storey, with each building element type being processed. A demonstration was carried out for a case-study building. The main modelling strategies used by the method are described and key challenges are discussed.
keywords	BIM; CAD drawings; conversion; generation; Grasshopper
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	sigradi2021_260
id	sigradi2021_260
authors	Lima Ferreira, Claudio and Vaz Lima, Larissa
year	2021
title	Architecture and Neuroscience: Green Areas Contributions to Hospitalized Patients’ Homeostasis
source	Gomez, P and Braida, F (eds.), Designing Possibilities - Proceedings of the XXV International Conference of the Ibero-American Society of Digital Graphics (SIGraDi 2021), Online, 8 - 12 November 2021, pp. 927–939
summary	Hospitalization is, for the patient, a neuropsychophysiological stressor, thus pertinent theories point to architectural stimuli as a tool for the homeostasis restoration and consequent well-being. Furthermore, they compile advantages to the patients’ treatment and highlight, mainly, the natural environments benefits, which is elucidated by the Biophilia theory. Through literature review and analysis of applied research in national and international hospitals, extracted from indexing databases of scientific production in the 2000-2020 timeframe, it was found that these areas [a] promote stimuli that enhance emotions and positive feelings; [b] act to restore stress and anxiety; [c] reduce pain, analgesic intake and length of stay; and [d] increase patient satisfaction. By sharing the results of this research, the objective is, in addition to stimulating future research on the organism behavior in the environments, to indicate perspectives for hospital ambiences.
keywords	Neurociencias, Arquitetura Hospitalar, Áreas Verdes, Biophilia, Equilíbrio Homeostático.
series	SIGraDi
email
last changed	2022/05/23 12:11

_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	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	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	eae1
authors	Mitchell, William J.
year	1991
title	Functional Grammars: An Introduction
doi	https://doi.org/10.52842/conf.acadia.1991.167
source	Reality and Virtual Reality [ACADIA Conference Proceedings / ISBN 1-880250-00-4] Los Angeles (California - USA) October 1991, pp. 167-176
summary	A practical design must be realizable using available materials and fabrication processes, and it must meet specified functional requirements; these are necessary (though not always sufficient) conditions for solution of a design problem. It is possible to write shape grammars that produce designs which satisfy these two conditions.
series	ACADIA
email
last changed	2022/06/07 07:58

_id	caadria2018_018
id	caadria2018_018
authors	Lin, Yuming and Huang, Weixin
year	2018
title	Social Behavior Analysis in Innovation Incubator Based on Wi-Fi Data - A Case Study on Yan Jing Lane Community
doi	https://doi.org/10.52842/conf.caadria.2018.2.197
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 2, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 197-206
summary	Innovation incubator is an emerging kind of office space which focuses on promoting social interaction in the space. From the perspective of environmental behavior, the complex relationship between a particular space form and the social interactions is well worth exploring. Based on Wi-Fi positioning data, this paper examined the spatial and temporal behavior in innovation incubators. Using the interdisciplinary social networks analysis, this paper further analyzed the social interactions in this space, mining out social structures such as gathering and community, and analyzing the relationship between these structures and spaces. The result shows that human behavior in innovation incubators has some interesting characteristics, and the social structures are closely linked with the functional area of innovation incubator. This paper provides a new perspective and introduces interdisciplinary approaches to study the social behaviors in a particular space form, which has great potential in future research.
keywords	environmental behavior study; social behavior analysis; innovation incubator; Wi-Fi IPS; social network
series	CAADRIA
email
last changed	2022/06/07 07:59

_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	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	c83b
authors	Lippman, Andrew
year	1980
title	Movie-Maps: An application of the optical videodisk to computer graphics
source	ACM Computer Graphics V. 14 ( 3 ) July, pp. 32-42
summary	Contributed by Jose Ripper Kós (josekos@ufrj.br)
keywords	3D City modeling
series	other
last changed	2001/06/04 20:27

_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	caadria2018_103
id	caadria2018_103
authors	Liu, Chang, Zhang, Xu and Nagakura, Takehiko
year	2018
title	PanoFrame: A Lightweight Panoramic Video Editing Tool for Storytelling with Spatial Content
doi	https://doi.org/10.52842/conf.caadria.2018.2.567
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 2, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 567-576
summary	As low-cost panoramic cameras become prevalent among non-professional consumers, an easy-to-use panoramic video editing tool is required for emerging storytellers. This paper proposes a lightweight online panoramic video editing tool for storytelling and explores a method of interpreting the same spatial content from different perspectives with panoramic videos. We conducted three experiments using different groups of participants to test how people create, understand, and interact with a panoramic video story in the proposed tool. The results reveal that this tool enables storytellers to work collaboratively and create multiple narratives from a panoramic video, and the generated panoramic video narratives are also more attractive to audiences than the raw video. This tool has the potential to be an ever-growing crowdsourcing community with a database of multiple narratives and creates opportunities for designers to record, learn about and present architectural and urban space from multiple perspectives.
keywords	Storytelling; panoramic video; spatial content; multiple perspective narrative; crowdsourcing
series	CAADRIA
email
last changed	2022/06/07 07:59

_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

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