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	acadia07_000
id	acadia07_000
authors	Lilley, Brian, Beesley, Philip (eds.)
year	2007
title	Expanding Bodies: Art • Cities• Environment
doi	https://doi.org/10.52842/conf.acadia.2007
source	Proceedings of the 27rd Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-17 October, 2007.
series	ACADIA
last changed	2022/06/07 07:49

_id	acadia03_051
id	acadia03_051
authors	Lim, Chor-Kheng
year	2003
title	G Pen: An Intelligent Designer’s Playmate
doi	https://doi.org/10.52842/conf.acadia.2003.403
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 403-409
summary	In the field of design the pen-based system is a newly developed computer interface that provides the designer with the convenience of a pen in freehand sketches. But these pen-based systems only focus on an interface familiar to the designers and the application of the hardware and software that go with it, treating the pen only as a mouse-like input device. As pen and pad are devices for the pen-based system, the hope is that they can be endowed with more intelligent characteristics to let them interact with designer’s gestures and become a creative source for the designers, while simultaneously preventing the design fixation encountered by designers during design process. This research utilizes the unintentional hand gestures made by designers, such as the designer’s grip of the pen or movement involved in playing with the pen, putting it down, knocking it, twisting it or shaking it, during the thinking process or when running into a design fixation. From the interaction between the pen and the pad, certain actions may be generated to stimulate the designer’s thinking process. This research uses a neural network as the main learning mechanism for the eventual development of a prototype of a pen-based drawing system that provides timely visual stimulation: a G Pen system.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	ecaade03_615_54_kheng
id	ecaade03_615_54_kheng
authors	Lim, Chor-Kheng
year	2003
title	Is a pen-based system just another pen or more than a pen?
doi	https://doi.org/10.52842/conf.ecaade.2003.615
source	Digital Design [21th eCAADe Conference Proceedings / ISBN 0-9541183-1-6] Graz (Austria) 17-20 September 2003, pp. 615-622
summary	Freehand sketch is the most critical stage in the design process. The importance of the freehand sketch is in its ability to freely represent various projections of ambiguous drawing using a convenience tool, pen-and-paper. Recently, pen-based system which developed attempted to use pen as an input device, allowing sketches to be freely drawn on computers. However, as far as the various drawing projections, such as diagram, symbol, plan, elevation, section, perspective, etc., how are they interrelated to a designer’s cognitive behavior? Different media have different abilities to represent projections. What’s the difference of design cognitive behavior between conventional pen-and paper and pen-based system in view of both using a pen as a design medium? This research proceeds a think-aloud protocol analysis to present an analysis and discussion. Research results show that there is a relationship of gradual embodiment, mutually complementary, going from a whole to being dissected into sections between the different projections. Moreover, pen-based system is more than a pen, it allows designer to inspect a 3-D view during the sketching stage. This gives the designer more opportunities during the sketching stage to conduct the design thinking process based on the ambiguous 2-D projections and the more concrete 3-D images, as well as more opportunities for visual feedback
series	eCAADe
email
last changed	2022/06/07 07:59

_id	acadia03_049
id	acadia03_049
authors	Lim, Chor-Kheng
year	2003
title	An Insight into the Freedom of Using a Pen: Pen-based System and Pen-and-paper
doi	https://doi.org/10.52842/conf.acadia.2003.385
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 385-393
summary	In earlier researches on freehand sketching, the cognitive behavior of designers was studied. In recent years, some researchers began to look into this area from the design media aspect. The pen-based system, developed by Gross, Landay and other researchers, used the pen as an input device, allowing sketches to be freely drawn in a computer environment. The importance of the freehand sketch lies in its ability to freely represent various drawing projections using ambiguous sketches. However, as for the various drawing projections, such as diagrams, symbols, plans, elevations, sections, perspectives, etc., how are they interrelated to a designer’s thinking process and the cognitive behavior? Different media have different abilities to represent different projections. Would they affect the designer’s design thinking as well? Targeting different media, i.e., conventional freehand sketches vs. the computer pen-based system, this research uses case studies and think-aloud protocol analysis to present an analysis and discussion. Research results show that there is a relationship of gradual embodiment that is mutually complementary, going from a whole perspective to being the dissected into sections between the different projections. In addition, these projections restrict the designer’s various design thinking processes, while the use of different media may somewhat change the actual design thinking of the designer
series	ACADIA
email
last changed	2022/06/07 07:52

_id	acadia06_386
id	acadia06_386
authors	Lim, Chor-Kheng
year	2006
title	From Concept to Realization
doi	https://doi.org/10.52842/conf.acadia.2006.386
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 386-391
summary	This research aims to provide a deeper understanding of the unique features of CAD/CAM media tools and their applications. Moreover, it analyzes the role of the CAD/CAM media in the fabricating of physical models and the kind of added benefits they offer above and beyond those of traditional hand-made physical models. This research concludes that certain aspects of CAD/CAM can aid in the digital design process.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	ijac20108304
id	ijac20108304
authors	Lim, Chor-Kheng
year	2010
title	A framework of CAD/CAM design and construction process for freeform architecture: a case study
source	International Journal of Architectural Computing vol. 8 - no. 3, pp. 301-318
summary	This research aims to analyze the design and construction process of the built freeform architectural projects and understand deeply the applications of the CAD/CAM media tools, and come up with a preliminary framework of an executable general CAD/CAM design and construction process in freeform architectural design.
series	journal
last changed	2019/05/24 09:55

_id	caadria2022_496
id	caadria2022_496
authors	Lim, Chor-Kheng
year	2022
title	Presence Stickers: A Seamlessly Integrated Smart Living System at a Solitary Elderly Home
doi	https://doi.org/10.52842/conf.caadria.2022.1.445
source	Jeroen van Ameijde, Nicole Gardner, Kyung Hoon Hyun, Dan Luo, Urvi Sheth (eds.), POST-CARBON - Proceedings of the 27th CAADRIA Conference, Sydney, 9-15 April 2022, pp. 445-454
summary	This research develops Presence Stickers, the capacitive sensing module that can be easily affixed to the existing space element surfaces (such as a wall, door, stairs), and daily objects or home furniture (such as a chair, cabinet, table, sofa, etc.). These 30*30 cm Presence Stickers can actively sense people‚s physical behaviors and body movements in spaces. From the preliminary analysis of observing the 80-year-old elderly subject‚s daily activities, the movement trajectory of the ‚Move-Stop‚ pattern is found. There will be a Touch (T) and Touchless (TL) relationship between the body and the space elements or objects. Furthermore, the touchless, or non-contact, intimate relationship can also be divided into two types: 1. The body that ‚Passes by‚ (P) the spatial elements or objects, and 2. The body that ‚Stays‚ (S) in front of the object and performs activities. These three types of the intimate relationship between bodies and objects, i.e., T, TL-P, and TL-S, were used as the main sensing conditions to develop the Presence Stickers sensor module. We affixed 8 Presence Stickers on 9 objects in six spaces and finally, the life pattern can be analyzed and the sensors provide the customized intelligent application function for the elderly.
keywords	Intuitive Interaction Design, Capacitive Sensor, Daily Object, Touchless, Body Movement, Smart Home, SDG 3
series	CAADRIA
email
last changed	2022/07/22 07:34

_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	caadria2024_513
id	caadria2024_513
authors	Lim, Chor-Kheng
year	2024
title	From Pencil to Pixel: The Evolution of Design Ideation Tools
doi	https://doi.org/10.52842/conf.caadria.2024.3.089
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 3, pp. 89–98
summary	This study explores the integration of Artificial Intelligence-Generated Content (AIGC) in design processes, focusing on the ideation phase. Utilizing in-depth interviews with experienced designers and an experimental approach with novices, it compares AIGC tools like ChatGPT, Midjourney and Copilot with traditional sketching methods. The findings reveal two distinct operational patterns in AIGC utilization: a subtractive method of refining AI outputs and an additive method of evolving design through AI suggestions. Experienced designers view AIGC as a powerful aid for creative ideation, while novices prefer familiar hand-drawing methods. The study proposes a "Seeing-Instructing-Seeing" model, adapting Schön's reflective practice model, to incorporate the collaborative dynamic between designers and AI, marking a shift from manual to intellectual labor in design ideation. This represents a paradigm shift in design methodologies, suggesting a future of co-creative partnerships between designers and AI tools.
keywords	AIGC, Ideation Design Process, Textual Thinking, Creativity
series	CAADRIA
email
last changed	2024/11/17 22:05

_id	caadria2014_173
id	caadria2014_173
authors	Lim, Jason; Ammar Mirjan, Fabio Gramazio and Matthias Kohler
year	2014
title	Robotic Metal Aggregations
doi	https://doi.org/10.52842/conf.caadria.2014.159
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 159–168
summary	The recent convergence of computational design and digital fabrication has made new forms of architectural materialization possible. A workshop conducted at the Royal Melbourne Institute of Technology investigated how differentiated lightweight metal structures may be designed and fabricated under these new conditions. The workshop aim was to complete three such structures; each one is aggregated from aluminum profiles that are robotically assembled according to computationally driven geometric logics. The key challenge was to enable participants, assumed to lack programming and robotic fabrication experience, to design and construct their structures within imposed time constraints. This paper describes the subsequent development of accessible computational design tools and a robust robotic fabrication method for the workshop, and highlights the key decisions taken with their implementation. The workshop results are discussed and the design tools evaluated with respect to them. The paper concludes by recommending an approach to developing computational design tools which emphasizes the importance of usability and integration with the fabrication process.
keywords	Robotic fabrication; computational design; visual programming; lightweight structures
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	caadria2013_056
id	caadria2013_056
authors	Lim, Jason; Fabio Gramazio and Matthias Kohler
year	2013
title	A Software Environment for Designing Through Robotic Fabrication – Developing a Graphical Programming Toolkit for the Digital Design and Scaled Robotic Fabrication of High Rises
doi	https://doi.org/10.52842/conf.caadria.2013.045
source	Open Systems: Proceedings of the 18th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2013) / Singapore 15-18 May 2013, pp. 45-54
summary	The term “robot” was born from a play written almost a century ago. Today robotic fabrication has become an emerging topic in architectural research. As architects work with these technologies, they are challenged with writing a different kind of play: here robots are the actors and the physical materialization of a design is their performance. However current Computer Aided Design (CAD) packages do not provide native robot programming functionalities which architects require to plan and orchestrate these fabrication process. To address this limitation, a Python library for robot programming is written. It is referenced by a toolkit of custom components developed to extend a graphical programming environment commonly used for architectural design. The empirical development of these software tools takes place in the context of a design studio investigating the subject of the high rise. The tools are tested in a workflow that involves the digital design and scaled robotic fabrication of high-rise housing. This paper discusses the considerations underlying the toolkit’s design, the outcomes of its use in the studio, and its impact on the creative design process.
wos	WOS:000351496100005
keywords	Robotic fabrication, Architectural model, Software tools, High rise design, Creative computational design
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	ijac20086403
id	ijac20086403
authors	Lim, Sungwoo; Prats, Miquel; Jowers, Iestyn; Chase, Scott; Garner, Steve; McKay, Alison
year	2008
title	Shape Exploration in Design: Formalising and Supporting a Transformational Process
source	International Journal of Architectural Computing vol. 6 - no. 4, 415-433
summary	The process of sketching can support the sort of transformational thinking that is seen as essential for the interpretation and reinterpretation of ideas in innovative design. Such transformational thinking, however, is not yet well supported by computer-aided design systems. In this paper, outcomes of experimental investigations into the mechanics of sketching are described, in particular those employed by practicing architects and industrial designers as they responded to a series of conceptual design tasks. Analyses of the experimental data suggest that the interactions of designers with their sketches can be formalised according to a finite number of generalised shape rules. A set of shape rules, formalising the reinterpretation and transformations of shapes, e.g. through deformation or restructuring, is presented. These rules are suggestive of the manipulations that need to be afforded in computational tools intended to support designers in design exploration. Accordingly, the results of the experimental investigations informed the development of a prototype shape synthesis system, and a discussion is presented in which the future requirements of such systems are explored.
series	journal
last changed	2009/03/03 07:48

_id	sigradi2017_062
id	sigradi2017_062
authors	Lima da Silva, Juliano; Andréa Quadrado Mussi, Lauro André Ribeiro, Thaísa Leal da Silva
year	2017
title	Programação em plataforma BIM e a Norma de Desempenho Brasileira: Desenvolvimento de uma aplicação para estimativa de performance acústica em projetos arquitetônicos [BIM platform programming and Brazilian Performance Standard: Development of an application to estimate acoustic performance in architectural design]
source	SIGraDi 2017 [Proceedings of the 21th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-227-439-5] Chile, Concepción 22 - 24 November 2017, pp.423-428
summary	The Brazilian Performance Standard (NBR 15.575/2013 – Housing Buildings – Performance) is changing the design process of residential buildings, imposing new acoustic performance criteria. In this Context, the present paper proposes the programming of a Revit plug-in for verifying sound insulation of walls between environments, collecting information of the building’s model from a parameter database, calculating values of the elements’ sound reduction index and allowing to ponder constructive systems’ performance. The application aims to amplify productivity of designers and to provide greater control over technological solutions, assisting in the compliance with performance criteria.
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	sigradi2018_1444
id	sigradi2018_1444
authors	Lima da Silva, Juliano; Quadrado Mussi, Andréa; Leal da Silva, Thaísa; Zardo, Paola
year	2018
title	Designers of the XXI century: BIM software programming and the development of new competencies
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. 538-545
summary	This paper presents the scenario of programming use by architects and engineers by creation of their own unique tools. It aims to emulate and understand BIM software customization phenomenon by development of plug-ins. Design Science Research was used to direct the construction of artifacts for specific practical problems. Results are presented by development of Revit plug-ins to meet Brazilian Performance Standard criteria in areas of acoustic and luminous performance. It is concluded that scripting enables the designer to tailor processes to their own particularities, possibly becoming a high-impact skill in the future, with importance regarding their independence and versatility.
keywords	BIM; Programming; Design science research; Dynamo; Performance Standard
series	SIGRADI
email
last changed	2021/03/28 19:58

_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	ecaade2017_227
id	ecaade2017_227
authors	Lima, Elton C., Vieira, Aline, Mendes, Leticia T. and Griz, Cristiana
year	2017
title	“Houses for everybody” Brazilian competition - An application of shape grammar and space syntax for analyzing low-income housing
doi	https://doi.org/10.52842/conf.ecaade.2017.2.463
source	Fioravanti, A, Cursi, S, Elahmar, S, Gargaro, S, Loffreda, G, Novembri, G, Trento, A (eds.), ShoCK! - Sharing Computational Knowledge! - Proceedings of the 35th eCAADe Conference - Volume 2, Sapienza University of Rome, Rome, Italy, 20-22 September 2017, pp. 463-470
summary	This article focuses on the use of both shape grammar and space syntax as tools to identify and encode the principles and rules behind the design of low-income housing in Brazilian context. The idea is to use such rules as part of a methodology for analyzing quality space in social housing plans and aims to understand to which attributes of contemporary society redefine certain patterns of familial social conduct, particularly their ways of living and how these attributes impact housing spatial patterns.king this paragraph.
keywords	shape grammar; space syntax; design methodology
series	eCAADe
email
last changed	2022/06/07 07:59

_id	sigradi2020_886
id	sigradi2020_886
authors	Lima, Elton Cristovao da Silva; Matsunaga, Cristina; Mendes, Leticia Teixeira
year	2020
title	Sartorius Pavilion – Biomimicry as a design methodology for a parametric pavilion for the Serpentine Gallery/England
source	SIGraDi 2020 [Proceedings of the 24th Conference of the Iberoamerican Society of Digital Graphics - ISSN: 2318-6968] Online Conference 18 - 20 November 2020, pp. 886-893
summary	In order to design an ephemeral pavilion located at the Serpentine Gallery (England), an experimental design approach was developed in this paper by using biomimicry strategies associated with parametric modeling. Exploring the solution-based methodology, the analysis of the sartorius muscle anatomic features such as rotation, flexion and long shape allowed inspiring the proposal of a Sartorius Pavilion which is the object of study. The experiment was implemented throughout a parametric visual script tool resulting in a model capable of rapidly and intuitively simulating shape variations, basic structural and material attributes by modifying a set of previously defined parameters.
keywords	Biomimicry, Bio-inspired Architecture, Sartorius Muscle, Parametric Pavilion, Serpentine Gallery
series	SIGraDi
email
last changed	2021/07/16 11:53

_id	sigradi2020_627
id	sigradi2020_627
authors	Lima, Fernando T.; Muthumanickam, Naveen K.; Miller, Marc L.; Duarte, José P.
year	2020
title	World Studio: a pedagogical experience using shape grammars and parametric approaches to design in the context of informal settlements
source	SIGraDi 2020 [Proceedings of the 24th Conference of the Iberoamerican Society of Digital Graphics - ISSN: 2318-6968] Online Conference 18 - 20 November 2020, pp. 627-634
summary	The World is experiencing a rapid surge in urban population, in addition to fast urbanization processes. Contemporary cities witness the rise of numerous urban and social problems, leading to the emergence of informal settlements. Still, computational and parametric resources have increasingly been adopted in novel approaches to urban planning and design. These resources can be used in informal settlements to improve urban quality without losing their essential features. This paper describes a teaching experience in the context of a design studio that uses shape grammars and parametric tools to design for an informal settlement context in Ahmedabad, India.
keywords	Shape grammars, Parametrization, Informal settlements, Urban design, Teaching experience
series	SIGraDi
email
last changed	2021/07/16 11:52

_id	sigradi2014_049
id	sigradi2014_049
authors	Lima, Fernando Tadeu; José Ripper Kós
year	2014
title	Pensamento algorítmico, parametrização e urbanismo sustentável: uma avaliação de parâmetros para estratégias de projeto urbano inteligente [Algorithmic thinking, parameterization and sustainable urbanism: an assessment of parameters for intelligent urban design strategies]
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. 360-364
summary	This article aims to promote the debate about the appliance of algorithmic thinking and parametric logic in the task of discussing, intervening and designing sustainable cities. More specifically, this paper will address the possibilities of developing generative systems in order to constitute digital models able to manage the various parameters that may be involved in functional, environmental and social proposition of cities. To that end, we assembled a theoretical referential about algorithmic and parametric framework, as well as new urbanism´s concepts and principles such as Transit Oriented Development, Walkability and mix of uses.
keywords	Urban Design; Algorithmic thinking; Parameterization; Sustainability
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

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