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	caadria2018_210
id	caadria2018_210
authors	Lin, Yuqiong, Zheng, Jingyun, Yao, Jiawei and Yuan, Philip F.
year	2018
title	Research on Physical Wind Tunnel and Dynamic Model Based Building Morphology Generation Method
doi	https://doi.org/10.52842/conf.caadria.2018.2.165
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. 165-174
summary	The change of the building morphology directly affects the surrounding environment, while the evaluation of these environment data becomes the main basis for the genetic iterations of the building morphology. Indeed, due to the complexity of the outdoor natural ventilation, multiple factors in the site could be the main reasons for the change of air flow. Thus, the architect is suggested to take the wind environment as the main morphology generation factor in the early stage of the building design. Based on the research results of 2017 DigitalFUTURE Wind Tunnel Visualization Workshop, a novel self-form-finding method in design infancy has been proposed. This method uses Arduino to carry out the dynamic design of the building model, which can not only connect the sensor to monitor the wind environment data, but also contribute the building model to correlate with the wind environment data in real time. The integration of the Arduino platform and the physical wind tunnel can create the possibility of continuous and real-time physical changes, data collection and wind environment simulation, using quantitative environmental factors to control building morphology, and finally achieve the harmony among the building, environment and human.
keywords	Physical wind tunnel; dynamic model; building morphology generation; environmental performance design; wind environment visualization
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	cf2019_025
id	cf2019_025
authors	Lin, Yuqiong; Chenyu Huang ,Yuqiong Lin and Philip F. Yuan
year	2019
title	High-rise Building Group Morphology Generation Approach based on Wind Environmental Performance
source	Ji-Hyun Lee (Eds.) "Hello, Culture!" [18th International Conference, CAAD Futures 2019, Proceedings / ISBN 978-89-89453-05-5] Daejeon, Korea, p. 185
summary	In the urbanization process, high-rise is favored and popularized? while results to the high-density urban space which aggravated the deterioration of urban wind environment. Using quantifiable environmental factors to control the building, is promoting a more meaningful group formation of the sustainable high-rise buildings. Thus, taking wind performance into account in high-rise design infancy is essential. According to the achievement of CAADRIA2018 “SELF-FORM-FINDING WIND TUNNEL TO ENVIRONMENTAL-PERFORMANCE URBAN AND BUILDING DESIGN” workshop, a preliminary set related to the environmental performance urban morphology generation system and method was constructed. In this study, various of high-rise building forms that might be conducive to urban ventilation were selected, such as “hollow-out”, “twisting”, “façade retracting” and “liftup”, to design the Dynamic Model System with multi-dimensional motion.
keywords	High-rise, group morphology, wind tunnel, dynamic models, environmental performance
series	CAAD Futures
email
last changed	2019/07/29 14:15

_id	caadria2023_192
id	caadria2023_192
authors	Lin, Zhichao, Yin, Shi, Liao, Wei and Xiao, Yiqiang
year	2023
title	Genetic Algorithm-Based Building Geometric Opening Configurations Optimization for Enhancing Ventilation Performance in the High-Density Urban District
doi	https://doi.org/10.52842/conf.caadria.2023.1.251
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. 251–260
summary	The quality of the outdoor environment relates to urban ventilation performance. Poor wind conditions in high-density urban districts may lead to severe air pollution and deteriorate outdoor thermal comfort. The increase of openings in building geometry is one of the effective passive design strategies for enhancing the porosity of urban morphology and benefitting urban ventilation. However, the outdoor wind environment correlates with the opening configurations of building geometry complicatedly. For seeking the optimal opening configurations, a decision support tool is urgently needed. Our study proposes a genetic algorithm-based optimization workflow for the opening configurations of building geometry design by integrating Computational Fluid Dynamics simulation and parametric design. A residential block in Shenzhen, China is chosen as an example to show this workflow. The results demonstrate that when the porosity is 15%, the pedestrian-level mean wind speed, the wind speed dispersion, and the pressure difference between the front and rear of the downstream building can be optimized by 20.00%, 19.35%, and 183.33% on maximum. When the porosity is increased to 30%, these values are 42.22%, 16.13%, and 483.33%. The resultant opening distribution probability maps can support building design at an early stage to achieve a comfortable urban environment.
keywords	Urban Ventilation, Building Openings, Building Porosity, Genetic Algorithm Optimization, Computational Fluid Dynamics
series	CAADRIA
email
last changed	2023/06/15 23:14

_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	ddss2006-pb-153
id	DDSS2006-PB-153
authors	Linda Ma, Theo Arentze, Aloys Borgers, and Harry Timmermans
year	2006
title	A Multi-Agent Model for Generating Local Land-Use Plans in the Context of an Urban Planning Support System
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) 2006, Progress in Design & Decision Support Systems in Architecture and Urban Planning, Eindhoven: Eindhoven University of Technology, ISBN-10: 90-386-1756-9, ISBN-13: 978-90-386-1756-5, p. 153-168
summary	In a multi-player urban planning process, the outcome of any individual decision of the actors is uncertain until a state where the plan is satisfactory for all. To support the plan generation phase, this paper develops a generic multi-agent system, in which agents represent particular land-uses. In the system, agents higher in the hierarchy have priority over agents lower in the hierarchy to claim units of land. This one-direction claim process may result in a plan that is not optimal for every agent. The system, therefore, allows agents to revise their plans in an iterative procedure. A case study illustrates centralized, semi-centralized and decentralized solutions for a plan area based on the outcomes of different strategies used by facility agents (retail, green, schools) and a housing agent. The results show that the proposed system is able to generate rational and realistic plan alternatives for new residential areas.
keywords	Multi-agent system, Planning support system, Plan alternative, Land use planning
series	DDSS
last changed	2006/08/29 12:55

_id	acadia10_282
id	acadia10_282
authors	Linder, Mark
year	2010
title	Literal Digital
doi	https://doi.org/10.52842/conf.acadia.2010.282
source	ACADIA 10: LIFE in:formation, On Responsive Information and Variations in Architecture [Proceedings of the 30th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-4507-3471-4] New York 21-24 October, 2010), pp. 282-285
series	ACADIA
type	panel paper
email
last changed	2022/06/07 07:59

_id	c70a
authors	Lindgren, Christina Axelsson
year	1988
title	Forest Visual Variation as a Recreative Force
source	Knowledge-Based Design in Architecture, Tips-88 (pre-proceedings) (1988 : Otaniemi). editors. John S Gero and T. Oksala. Espoo, Finland: Research Institute for Built Environment, Helsinki University of Technology, Department of Architecture, pp. 149-157. includes bibliography.
summary	--- A revised version of this paper has been published in the Acta Polytechnica Scandinavica series. The article presents some findings concerning the importance of forest visual variation and the possibilities to create a Forest Visual Opportunity Spectrum. In the light of suggestions on theory of recreation and of the actual multiple use planning situation of forests, the possibilities and limits of empirical studies as a tool to receive knowledge of visual aspects of forests are discussed
keywords	planning, knowledge, applications, landscape
series	CADline
last changed	1999/02/12 15:09

_id	acadia06_190
id	acadia06_190
authors	Lindquist, Mark
year	2006
title	Web Based Collaboration (for Free) Using Wikis in Design Studios
doi	https://doi.org/10.52842/conf.acadia.2006.190
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 190-199
summary	This paper presents a case study of the use of Wikis by students in a landscape architecture design studio to evaluate the suitability of Wikis for enhancing student collaboration in the site analysis and preliminary design stage of a project. It was anticipated that using Wikis to facilitate collaboration would provide alternatives to conventional peer to peer collaboration. In addition, Wikis could enhance feedback between the course coordinator and students. The Wiki was used to collect, compile and present data for the purpose of a precedent study of cultural and physical analysis of a site in New Zealand, for which the technology proved successful. The Wiki was less successful in contributing to the collaborative preliminary design of the project. The following discussion and presentation will include the evaluation of online Wiki services, the process used in the design studio, strengths and weaknesses observed, and opportunities for future research.
series	ACADIA
email
last changed	2022/06/07 07:59

_id	acadia20_310
id	acadia20_310
authors	Ling, Andrea; Moghadasi, Mahshid; Shi, Kowin; Wei, Junghsein; Petersen, Dr. Kirstin
year	2020
title	Formica Forma
doi	https://doi.org/10.52842/conf.acadia.2020.1.310
source	ACADIA 2020: Distributed Proximities / Volume I: Technical Papers [Proceedings of the 40th Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 978-0-578-95213-0]. Online and Global. 24-30 October 2020. edited by B. Slocum, V. Ago, S. Doyle, A. Marcus, M. Yablonina, and M. del Campo. 310-319.
summary	Hybrid robot systems that cooperate with live organisms is an active area of research, in part to leverage biological advantages such as adaptivity, resilience, and sustainability. Formica Forma explores new possibilities of codesigning and cofabricating in partnership with Western Harvester ants to build forms that would be challenging with industrial techniques. Using a robotically controlled UV light (350–405 nm) as an environmental stimulus to bias digging behavior, we guide 600 ants to dig ~141 cm of tunnels in transparent ant gel over 646 hours. Predictability, fidelity to the UV source, repeatability, dig efficiency, amount of ant activity, and tunnel preference were studied. The resulting branching tunnels were cast in silicone to demonstrate the ability to harness this in subtractive fabrication with inexpensive, self-maintaining biological fabricators. Results showed that ants can follow the UV light as a path guide (when the light is moving) or target it as a goal (when the light is both moving and static), with longer digging effect from the moving UV stimulus. Ants showed high fidelity to the light path, aligning their tunnel direction exactly with changes in the UV position, tuning the fabrication in real-time with environmental alterations. Population size did not seem to affect digging speed or efficiency, and the ants’ preexisting preferences factored into which tunnels were dug out. The research develops a hybrid biodigital way of working with biological swarms where the individual agency and the intrinsic stochasticity of the system offer possibilities in real-time adaptability and programmability through environmental templating.
series	ACADIA
type	paper
email
last changed	2023/10/22 12:06

_id	caadria2024_304
id	caadria2024_304
authors	Ling, Ban Liang and Tunçer, Bige
year	2024
title	Extracting Actionable Information from the Site Context Using A Phenotype-Based Strategy
doi	https://doi.org/10.52842/conf.caadria.2024.1.323
source	Nicole Gardner, Christiane M. Herr, Likai Wang, Hirano Toshiki, Sumbul Ahmad Khan (eds.), ACCELERATED DESIGN - Proceedings of the 29th CAADRIA Conference, Singapore, 20-26 April 2024, Volume 1, pp. 323–332
summary	As more computational design tools are developed, solution generation has been accelerated to provide real time feedback. However, a human designer is still required to translate generated data into actionable information. This is especially so for diverse design scenarios, where the data structure differs, and the computer is unable to draw conclusions across both scenarios. The site context is one key parameter that contributes towards the difference in scenarios. In short, how can an algorithm extract design-related information from diverse scenarios? To address this issue, a phenotype-based strategy is proposed as a representation method, and it re-parameterises diverse site conditions by focusing on their geometrical properties. Instead of parameterising the site context, street-view images are captured, and Gabor filters extract relevant geometrical properties, such that site conditions with different compositions, forms, and density can be organised. This method quantifies compositional and density-based properties of the surrounding building blocks, thereby enabling the computer to digest generated information and provide design suggestions. A new sample site is then used to demonstrate a query of the phenotype space, where suggestions about solar radiation performance is feedback to a human designer.
keywords	Context representation, performance-based generative design
series	CAADRIA
email
last changed	2024/11/17 22:05

_id	sigradi2011_145
id	sigradi2011_145
authors	Linhares, Bruna; Alarcão, Helena; Carvão, Luís; Toste, Pedro; Paio, Alexandra
year	2011
title	Using Shape Grammar to design ready-made housing for humanized living. Towards a parametric-typological design tool
source	SIGraDi 2011 [Proceedings of the 15th Iberoamerican Congress of Digital Graphics] Argentina - Santa Fe 16-18 November 2011, pp. 78-81
summary	The research described in this paper is part of a larger on-going project called "Emerg.cities4all" that proposes a generative computer-aided planning system for housing for low-income populations using shape grammars. This paper presents the preliminary research results of a group of four master students who proposed to develop a grammar of ready-made housing for humanized living based in three informal settlements case studies. The results of this research are based on the assumption that it is possible to generate modular, adaptable and affordable ready-made housing for humanized living solutions design, supported by a computational generation tool.
keywords	Shape grammars; emergent housing; housing design; CPLP
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	caadria2023_210
id	caadria2023_210
authors	Linker, Gitit, Gillis, Elisheva, Freedman, Danny, Segal, Adi, Zermati, Noa, Naim, Or, Partook, Rebecca Hila and Nathansohn, Nof
year	2023
title	Designed to Grow: 3D Printing of Seeds
doi	https://doi.org/10.52842/conf.caadria.2023.2.211
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. 211–220
summary	The prevalent use of inorganic, non-local materials in construction and design in the age of ecological crisis, calls for experiments with new, more sustainable components. In this research, we suggest re-thinking the incorporation of flora in design, by developing a new material for additive manufacturing (AM), that utilizes the constructive potential in the root entanglement of germinating seeds. The material which is comprised of a hydrogel and seeds is used to create 3D printed objects. These transform over time and the material receives new properties and qualities. The seeds develop into plants which finally wither, the plants roots intertwine and strengthen the structure of the designed shape as the sustaining hydrogel disintegrates. The object is comprised of organic biodegradable components only, that can be prepared for AM in simple processes. By doing so, the result is an accessible method of creating plant based and digitally designed objects. Our research challenges the conventional approach for integrating nature into the built environment. While flora is most commonly subsequently added as an external addition to the designed object, in this work, seeding is an integral part of the fabrication process. This allows us to introduce a new workflow for ecological design and fabrication.
keywords	Material Development, 3D printing, 3D Bioprinting, Digital Fabrication, Sustainable Design, Post Printing Transformation
series	CAADRIA
email
last changed	2023/06/15 23:14

_id	a33e
authors	Linn, Gudrun
year	1991
title	BATHROOM DESIGN AND FUNCTION ANALYSIS - BRIEF REPORTS FROM TWO RESEARCH PROJECTS
source	Proceedings of the 3rd European Full-Scale Modelling Conference / ISBN 91-7740044-5 / Lund (Sweden) 13-16 September 1990, pp. 38-39
summary	The problem behind this research project was the fact that Swedish standard bathrooms were (and most of them still are) difficult to clean, because of the building design. This has consequences not only for the inhabitants but also for the home helpers who assist old and disabled people in their own dwellings. The most difficult-to-clean spaces in a dwelling are the bathroom and the toilet-room. These spaces also are the most dirtied. In Sweden there of ten is a toilet in the bathroom. The aim of the project was to find out what or how much of physical agility a Swedish standard bathroom demands from the person who carries out the cleaning of it.
keywords	Full-scale Modeling, Model Simulation, Real Environments
series	other
type	normal paper
more	http://info.tuwien.ac.at/efa
last changed	2004/05/04 15:18

_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	6499
authors	Lintl, C., Economides, D., Hesse, M., Langenbahn, V., Roth, S. and Brack, C.
year	1993
title	CAD Education at Munich
doi	https://doi.org/10.52842/conf.ecaade.1993.x.t7f
source	[eCAADe Conference Proceedings] Eindhoven (The Netherlands) 11-13 November 1993
summary	We are stressing the idea that a combination of learning CAD and developing a design- work will hardly lead to success. It is first important to learn the principle handling of CAD - only then a reasonable application can work out. Our pupils have the chance of comparing, Iearning and working on several different CAD-systems with different philosophies and purposes, so the interested students have the opportunity to choose a tool that fits their working-habits and their designing-methods. Out of an overall number of 200 students of architecture each semester about 150 are willing to participate in the CAD- curriculum. 100 will be left after the low-level introductions and exercises, done with the standard: AutoCAD - these students than have a basic idea of construction with computers. Those students who are going into details are deepening there skills to an extent where any experiment is feasible. It is hard work to get to this perfection.
series	eCAADe
last changed	2022/06/07 07:50

_id	ecaadesigradi2019_152
id	ecaadesigradi2019_152
authors	Liotta, Salvator-John A.
year	2019
title	Contemporary Architecture between Research and Practice - Experimentations in Digital Wood
doi	https://doi.org/10.52842/conf.ecaade.2019.1.595
source	Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 1, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 595-604
summary	This paper is a take on contemporary works in wood designed with parametric softwares and seen from an academic and professional point of view. The knowledge about digital wood developed through Digital Fabrication Laboratories has proved to be effective but with certain limitations when used for real constructions. In fact, translating the freedom of building temporary architectures -which is usually one of the "learn by doing" activities of design studio or workshops- into wood architecture that respect all the constraints of real construction is a challenge. This paper shows several experiences where innovative ideas developed through research have been applied to temporary pavilions and real constructions in Japan, Italy and France.
keywords	Parametric design and fabrication strategies; Pedagogy and Practice; CNC and Woodworking Technology; Wood complex surface
series	eCAADeSIGraDi
email
last changed	2022/06/07 07:59

_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	8bea
authors	Lipson, H. and Shpitalni, M.
year	1996
title	Optimization-based reconstruction of a 3D object from a single freehand line drawing
source	Computer-Aided Design, Vol. 28 (8) (1996) pp. 651-663
summary	This paper describes an optimization-based algorithm for reconstructing a 3D model from a single, inaccurate, 2D edge-vertex graph. The graph, which serves as input for the reconstruction process, is obtained froman inaccurate freehand sketch of a 3D wireframe object. Compared with traditional reconstruction methods based on line labelling, the proposed approach is more tolerant of faults in handling both inaccurate vertexpositioning and sketches with missing entities. Furthermore, the proposed reconstruction method supports a wide scope of general (manifold and non-manifold) objects containing flat and cylindrical faces. Sketchesof wireframe models usually include enough information to reconstruct the complete body. The optimization algorithm is discussed, and examples from a working implementation are given.
keywords	Drawing To Model, Optimization, Robustness
series	journal paper
last changed	2003/05/15 21:33

_id	5060
authors	Lira, Roberto O. and Vidal, Claudia G.
year	2001
title	APLICACIÓN DE HERRAMIENTAS DE GRAFICA DIGITAL AL DESARROLLO URBANO REGIONAL: EXPERIENCIA DEL LABORATORIO DE ESTUDIOS URBANOS (Application of Digital Graphic Tools in the Development of Regional Urbanism: The Experience of the Laboratory of Urban Studies)
source	SIGraDi biobio2001 - [Proceedings of the 5th Iberoamerican Congress of Digital Graphics / ISBN 956-7813-12-4] Concepcion (Chile) 21-23 november 2001, pp. 325-327
summary	Today it is known that the knowledge and the territory administration requires a modern systems of calculation that spatially order and processes this information. For this, the Laboratory of Urban Studies (LUS), is dedicated to the study of the space distribution phenomenon, by means of computational graph technology. The present work has the objective to present the LUS experience in the application of two tools of digital graph to the urban regional development: using the Systems of Geographical Information (SGI) in the integral evaluation of natural risks in the city of Concepción and the application of Animation 3D in the design of “Avenida Los Plátanos” in the University of Bío-Bío.
series	SIGRADI
email
last changed	2016/03/10 09:55

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