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	caadria2017_003
id	caadria2017_003
authors	Loh, Paul and Leggett, David
year	2017
title	Tools as Agents in Design and Making Processes
source	P. Janssen, P. Loh, A. Raonic, M. A. Schnabel (eds.), Protocols, Flows, and Glitches - Proceedings of the 22nd CAADRIA Conference, Xi'an Jiaotong-Liverpool University, Suzhou, China, 5-8 April 2017, pp. 799-808
doi	https://doi.org/10.52842/conf.caadria.2017.799
summary	The inversion of knowledge structure in electronics prototyping platform has allowed designers and architects to design and build reasonably stable mechatronic systems to aid novel material production; these new and hacked computer numeric controlled (CNC) machines are used to explore emerging material constructs and facilitate generative design processes. This paper examines tool making and questions the agentive capacity of such tools in design processes through a case study of a bespoke CNC machine which uses vacuum thermoforming techniques. Through understanding the agentive capacity of CNC tools, the authors suggest that the knowledge structure of tool making is distinctly different from fabrication workflow. This paper proposes an alternative means of understanding the capacity of CNC tools in the design and making process.
keywords	Digital Fabrication; Tool Making; Electronics Prototyping; Digital Workflow
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	caadria2016_651
id	caadria2016_651
authors	Loh, Paul; Jane. Burry and Malte Wagenfeld
year	2016
title	Workmanship of Risk: continuous designing in digital fabrication
source	Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2016) / Melbourne 30 March–2 April 2016, pp. 651-660
doi	https://doi.org/10.52842/conf.caadria.2016.651
summary	Research projects exploring the realm of digital fabrication have shifted in recent years from developing novel techniques and outcomes to the development of tools that are part of the design pro- cess. The alignment of material systems with digital fabrication tech- nology and tooling processes have led to new terminology such as ‘digital craft’ and ‘digital making’; both terms imply a relationship be- tween craft and digital design and fabrication. Also implied is an inti- mate relationship between material production, digital tools and CNC fabrication techniques; critical ingredients in contemporary design processes. David Pye’s concept of ‘the workmanship of risk’ is used extensively in current discourse as a means to qualify digital fabrica- tion as craft production. This reading of digital fabrication as craft is limited because the word craft is used as an analogy to draw parallels between craft production and digital fabrication. There is a gap in the knowledge of what contemporary craft practice can bring to digital fabrication as a discourse or more precisely, the mechanism that al- lows digital fabrication projects to be read as a form of craft practice. This paper suggests that craft practice is rooted in the relationship be- tween material, tools and technique as an intricate workflow within a project; quantifying risk is just a means to assess this relationship. The workflow however can be considered as autopoietic in nature; it is both self-referential and self-making at the same time as continuously designing.
keywords	Digital craft; digital fabrication; systems theory
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	a71d
authors	Loh, Rong
year	1981
title	Convex B-Spline Surfaces
source	Computer Aided Design. IPC Business Press, May, 1981. vol. 13: pp. 145-149 : some ill. ; graphs. includes a short bibliography
summary	This paper gives a definition for the convexity of B-spline surfaces and points out the conditions on which the convexity depends. A back shift smoothing method is introduced. This method is built on the basis of the convexity conditions. Application of this smoothing method gives a strictly convex curve
keywords	B-splines, curves, curved surfaces
series	CADline
last changed	1999/02/12 15:09

_id	ecaadesigradi2019_408
id	ecaadesigradi2019_408
authors	Lohse, Theresa and Werner, Liss C.
year	2019
title	Semi-flexible Additive Manufacturing Materials for Modularization Purposes - A modular assembly proposal for a foam edge-based spatial framework
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. 463-470
doi	https://doi.org/10.52842/conf.ecaade.2019.1.463
summary	This paper introduces a series of design and fabrication tests directed towards the use of bendable 3D printing materials in order to simplify a foam bubble-based geometry as a frame structure for modular assembly. The aspiration to reference a spittlebug's bubble cocoon in nature for a light installation in the urban context was integrated into a computational workflow conditioning light-weight, material-, and cost savings along with assembly-simplicity. Firstly, before elaborating on the project motivation and background in foam structures and applications of 3D-printed thermoplastic polyurethane (TPU) material, this paper describes the physical nature of bubble foams in its relevant aspects. Subsequently this is implemented into the parametric design process for an optimized foam structure with Grasshopper clarifying the need for flexible materials to enhance modular feasibility. Following, the additive manufacturing iterations of the digitally designed node components with TPU are presented and evaluated. Finally, after the test assembly of both components is depicted, this paper assesses the divergence between natural foams and the case study structure with respect to self-organizing behavior.
keywords	digital fabrication; 3D Printing; TPU flexibility ; modularity; optimization
series	eCAADeSIGraDi
email
last changed	2022/06/07 07:59

_id	sigradi2023_281
id	sigradi2023_281
authors	Lolas Ahumada, Carolina Denise and Ulloa Aguayo, Paula Ignacia
year	2023
title	Parameterization of Ancestral Andean Graphic Codes For 3D Printing in Geo-Bio Polymers. Translucent Artificial Poetry Project (PAT), First Stage.
source	García Amen, F, Goni Fitipaldo, A L and Armagno Gentile, Á (eds.), Accelerated Landscapes - Proceedings of the XXVII International Conference of the Ibero-American Society of Digital Graphics (SIGraDi 2023), Punta del Este, Maldonado, Uruguay, 29 November - 1 December 2023, pp. 1361–1372
summary	The parameterisation of Andean ancestral graphic codes for 3D printing in geo-polymers and the development of the PAT (Translucent Artificial Poetics) project focuses on the ontological-political extension of the Sumak Kawsay or Buen Vivir/Vivir Bien (5 principles) concept in the context of the Global South and the epistemologies of the South. From this perspective, PAT presents a project architecture based on a transitional design methodology that operates from a transdisciplinary perspective. It seeks to integrate Andean ancestral knowledge (the vernacular) and new technologies, together with diverse strategies of collaborative, participatory design and new pedagogies that involve the new generations in the whole process of the first stage. This opens up opportunities for active social transformation through the construction of modules adapted to the needs of the inhabitants of the Andes.
keywords	Parameterisation-Andean codes-Sumak Kawsay-3d Print-Southern epistemologies-Transition design-active social transformation.
series	SIGraDi
email
last changed	2024/03/08 14:08

_id	diss_long
id	diss_long
authors	Long, A.
year	2001
title	Quill A Gesture Design Tool for Pen-based User Interfaces
source	U.C. Berkeley
summary	This dissertation describes the motivation, design, and development of a tool for designing gestures for pen-based user interfaces. Pens and other styli have been ubiquitous for recording information for centuries. Recently, pen-based computers have recently become common, especially small devices such as the Palm Pilot. One benefit pens provide in computer interfaces is the ability to draw gestures—marks that invoke commands. Gestures can be intuitive and faster than other methods of invoking commands. However, our research shows that gestures are sometimes misrecognized and hard to remember. We believe these problems are due in part to the difficulty of designing “good” gestures—that is, gestures that are easy to remember and are recognized well—and the lack of tools for helping designers create good gestures. We believe that an improved gesture design tool can help interface designers create good gestures for their applications. Since people confuse similar objects and misremember them, we performed experiments to measure why people perceived gestures as similar. We derived computational metrics for predicting human perception of gesture similarity. Based on the results of our experiments, we developed a gesture design tool, quill. The tool warns designers about gestures that may be hard to remember or recognize, and provides advice about how to improve the gestures. It also provides a convenient way to test recognition of gestures. To evaluate quill, a user study was performed with 10 professional user interface designers and one professional web designer. All designers were able to create gesture sets using quill, but not all designers benefited from quill’s suggestions. More work is needed to make suggestions useful for most designers. The primary contributions of this work are: • Improved understanding of the gesture design process, including the types of problems people encounter when designing gestures. • Computational models for predicting human-perceived gesture similarity. • Confirmation of the importance of good naming for gesture memorability. • An intelligent gesture design tool, quill, which automatically warns designers about potential problems with their gestures and advises them about how to fix these problems. This work also suggests several areas for future work in the areas of gesture design tools and gesture similarity and memorability.
series	thesis:PhD
email
more	http://www-2.cs.cmu.edu/~chrisl/work/pubs/
last changed	2003/09/24 14:54

_id	ecaade03_053_108_lonsing
id	ecaade03_053_108_lonsing
authors	Lonsing, Werner
year	2003
title	Collaboration in the independent architectural office
source	Digital Design [21th eCAADe Conference Proceedings / ISBN 0-9541183-1-6] Graz (Austria) 17-20 September 2003, pp. 53-65
doi	https://doi.org/10.52842/conf.ecaade.2003.053
summary	Collaborative work in architecture is commonly concentrated on the design process. Design teams and their members are working together on multiple virtual model from different, mostly remote locations. Internet- based collaboration software offers a project management platform for comprehensive networking. Complex projects can bebetter coordinated and documented,and executed even faster. So in the building process at least two different kinds of collaboration can be noticed, collaboration in the design process where the architects are maintaining their modeling informations, and the construction process where the data is maintained be external software companies. Here another model is suggested. Hosting project data in their own building and so maintaining the physical representations of all project informations is the only way retaining control.
keywords	Collaborative Design, Communication, Database Systems
series	eCAADe
email
last changed	2022/06/07 07:59

_id	caadria2011_020
id	caadria2011_020
authors	Lonsing, Werner and Peter Anders
year	2011
title	Three-dimensional computational structures and the real world
source	Proceedings of the 16th International Conference on Computer Aided Architectural Design Research in Asia / The University of Newcastle, Australia 27-29 April 2011, pp. 209-218
doi	https://doi.org/10.52842/conf.caadria.2011.209
summary	In this paper, we describe a system of composite images to design virtual three-dimensional structures in an outdoor environment. The system, called AmbiViewer, consists of a modeler for three-dimensional on-site sketching, and overlapping locative technologies to orient virtual objects in a real-space, real-time setting. The system employs both GPS orientation and a visual marker system to provide a realistic and interactive augmented reality interface. While it is still under development, the authors believe it can bridge the gap between sketching on site, and creating virtual models in the office.
keywords	Augmented reality; mixed reality, locative design; interactive mModeler; visualisation; GPS; cybrids
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	2004_495
id	2004_495
authors	Lonsing, Werner
year	2004
title	Augmented Reality as Tool in Architecture
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 495-499
doi	https://doi.org/10.52842/conf.ecaade.2004.495
summary	This project describes a way to combine real-world images with graphical representations of three-dimensional objects.In architecture the combination of physical and virtual spaces is a traditional approach to propose the design of a building. Presenting a virtual design as it appears in relity requires either an unsatisfying level of abstraction while being on-site, as with sketches, or the performing of several ardous tasks. While in this case the quality is appropiate, it is now unlikely to get immediate results.Combining an interactive modeler as the primary designing instrument with a augmented reality system as mixture of cameras, GPS-devices and fiduciary features the system can demonstrate how augmentation as tool in architecture might work.
keywords	Augmentation: Augmented Reality; Interactive Modeler; Opengl; GPS
series	eCAADe
last changed	2022/06/07 07:59

_id	2005_477
id	2005_477
authors	Lonsing, Werner
year	2005
title	Viewing Ambispace
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 477-482
doi	https://doi.org/10.52842/conf.ecaade.2005.477
summary	AmbiSpace is introduced to describe the dual nature of composite image as perceived reception rather than claiming it as reality. AmbiViewer is the tool to create architectural composite images and is technically described as prototype.
keywords	Ambispace, Design Methodology, 3D-Modeling, Animation, Visualization
series	eCAADe
email
last changed	2022/06/07 07:59

_id	ecaade2007_139
id	ecaade2007_139
authors	Lonsing, Werner
year	2007
title	Combining GPS and CAD
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 655-661
doi	https://doi.org/10.52842/conf.ecaade.2007.655
summary	Combining CAD and GPS in architecture is a challenging task. Both technologies have not much in common. While GPS is used for mapping, CAD is used for modeling and virtual constructing. The request to design an application, the AmbiViewer, which can be used as design tool in an outdoor environment, brought the technologies together. This paper gives an overview about the GPS-technology and the integration into the modeling software.).
keywords	GPS, CAD, augmented reality, interactive modeler, graphic format
series	eCAADe
email
last changed	2022/06/07 07:59

_id	sigradi2014_266
id	sigradi2014_266
authors	Lonsing, Werner; Peter Anders Ph.D.
year	2014
title	Portable Architectural Design - Developing a Immersive Augmented Reality System for Architects
source	SIGraDi 2014 [Proceedings of the 18th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-9974-99-655-7] Uruguay- Montevideo 12,13,14 November 2014, pp. 166-169
summary	The architectural design process is, besides sketching, bound to the office. The introduction of computational design did not really change it. This paper will introduce and discuss the development of an affordable solution for a wearable and immersive augmented-reality-system (AR) for architects based on simple hardware components with some essential options to create and edit three-dimensional virtual shapes while being on-site.
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	97fc
authors	Lonsway, Brian
year	2000
title	Testing the Space of the Virtual
source	Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 51-61
doi	https://doi.org/10.52842/conf.acadia.2000.051
summary	Various modes of electronically mediated communication, perception, and immersive bodily engagement, generally categorized as “virtual experiences,” have offered the designer of space a new array of spatial conditions to address. Each of these modes of virtual experience, from text-based discussion forums to immersive virtual reality environments, presents challenges to traditional assumptions about space and its inhabitation. These challenges require design theorization which extends beyond the notions of design within the electronic space (the textual description of the chat forum, the appearance of the computer generated imagery, etc.), and require a reconsideration of the entire electronic and physical apparatus of the mediating devices (the physical spaces which facilitate the interaction, the manner of their connection to the virtual spaces, etc.). In light of the lack of spatial theorization in this area, this paper presents both an experimental framework for understanding this complete space of the virtual and outlines a current research project addressing these theoretical challenges through the spatial implementation of a synthetic environment.
series	ACADIA
last changed	2022/06/07 07:52

_id	acadia06_356
id	acadia06_356
authors	Lonsway, Brian
year	2006
title	The Argument for the Argument Revisiting the Architecture Machine
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 356-371
doi	https://doi.org/10.52842/conf.acadia.2006.356
summary	The argument for the argument, that is, the defense of the computable quantity, has had a profound impact on the contemporary understanding of design practice. In this paper, I explore the history of the architectural-computational ‘argument’ to uncover a generally accepted yet poorly understood collusion between architectural and urban theory, structuralist semantics, and computation. From arguments about the machine to the mechanics of language, and from the language of architecture to the architecture machine, the argument for the argument has radically transformed contemporary design practices, but neither the history nor the theory behind these developments has been critically examined. My own argument seeks to build upon this nexus a hypothetical construct – a post-structuralist computer – as a provocation of sorts: a challenge to contemporary computational work in architecture to critically and philosophically address its current trajectories.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	7a07
id	7a07
authors	Loon, P.P. van
year	1995
title	COMPUTATIONAL & METHODOLOGICAL STUDIES FOR INTERORGANISATIONAL DESIGN IN ARCHITECTURE, BUILDING AND URBAN DEVELOPMENT
source	Oxman, R.M., Bax, M.F.Th., Achten, H.H. (eds.) Design research in the Netherlands, 183-192
series	book
type	normal paper
email
more	http://www.designresearch.nl/PDF/DRN1995_vanLoon.pdf
last changed	2005/10/12 15:25

_id	ddssar0018
id	ddssar0018
authors	Loon, Peter Paul van
year	2000
title	Team design from the individual points of viewa humanistic approach
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	This paper deals with design in teams from the individual points of view of all the parties involved in the process: principals, investors, owners, specialists, experts, advisors, officials, builders, users and residents. Taken together, these different points of view enable us to describe decentralised design in its pure form.Discussion of the individual points of view is possible only if one assumes that the parties involved have their own standpoints in the form of a collection of definable goals (all their wishes, efforts, principles, standards etc.), that they will endeavour to achieve those goals and that they will adjust their actions and decisions during the design process to serve those goals. For the elaboration of this individual point of view (of team design in a matrix structure) I shall take as a basis two concepts from decision theory: ‘methodological individualism’ and ‘the actor’s viewpoint’.
series	DDSS
last changed	2003/08/07 16:36

_id	acadia11_196
id	acadia11_196
authors	Lopes, José; Leitão, António
year	2011
title	Portable Generative Design for CAD Applications
source	ACADIA 11: Integration through Computation [Proceedings of the 31st Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA)] [ISBN 978-1-6136-4595-6] Banff (Alberta) 13-16 October, 2011, pp. 196-203
doi	https://doi.org/10.52842/conf.acadia.2011.196
summary	Most CAD applications provide programming languages for automation and generative design. However, programs written in these languages are not portable because they execute only in the family of CAD applications for which they were originally written. Consequently, users are locked-in to one family of CAD applications and they cannot reuse programs written for other families. In this paper, we propose a solution to this problem: Rosetta, a programming environment that is compatible with several CAD applications. Rosetta is composed of (1) an abstraction layer that allows portable and transparent access to several different CAD applications; (2) back-ends that translate the abstraction layer into different CAD applications; (3) front-end programming languages in which users write the generative design programs; and (4) an intermediate programming language that encompasses the language constructs essential for geometric modeling and that is used as a compilation target for the front-ends.Rosetta allows users to explore different front-ends and back-ends, in order to find a combination that is most suitable for the problem at hand. As a result, users have access to different programming languages, namely, visual and textual, which can be used interchangeably to write generative design programs, without breaking portability. Furthermore, Rosetta ensures that a single program can be used to create identical geometric models in different CAD applications. This approach promotes the development of programs that are portable across the most used CAD applications, thus facilitating the dissemination of the programs and of the underlying ideas.
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:59

_id	sigradi2010_88
id	sigradi2010_88
authors	Lopes, Júnior Sérgio; da Cruz Fagundes Thêmis; Ripper Kós José
year	2010
title	Mapas conceituais e o projeto colaborativo para arquitetura sustentável: ensaios para habitação de interesse social no Brasil [Concept mapping and the collaborative project for sustainable architecture: social housing testing in Brazil]
source	SIGraDi 2010_Proceedings of the 14th Congress of the Iberoamerican Society of Digital Graphics, pp. Bogotá, Colombia, November 17-19, 2010, pp. 88-91
summary	The concept maps built and shared on the internet through the CmapTools software resources were used in this exploratory study to follow and analyze the process of collaborative design in public school learning situations. The samples, taken from a Brazilian architectural graduate public school, were maps built in housing design projects developed in a digital environment. A constructivist approach supports the learning method in the use of the net environment for collaborative design of sustainable social housing. This is the base for further development of alternative methodological - theoretical approaches in the context of teaching sustainable design.
keywords	collaborative architecture, conceptual map, information technology, education, social inclusion
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	sigradi2012_391
id	sigradi2012_391
authors	Lopez, Gabriela Bustos
year	2012
title	Ética en la Complejidad del Diseño Arquitectónico con Tecnología Digital (TD): redes multidimensionales colaborativas [Ethics in the Complexity of Architectonic Design with Digital Technology (DT): Multidimensional Collaborative Networks]
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 43-46
summary	This article reflects on the ethical implications of digital technology (DT) in architectonic design. Such a reflection is based on the definition of complex epistemology and the educational ethical reform (Morin 2000). The article ends with a conceptual proposal of an interactive, multidimensional and collaborative environment of design. The goal is to re-set patterns and strategies of design with DT from plural perspectives and poly-temporal creations, all of it inserted in a complex ethical point of view of a contemporary design. The wanted result is a social 3d network of design that unifies visualization, modeling tools, videoconferencing, chatting, and social-academic network managing.
keywords	Ethics; Digital Technology (DT); Architectonic Design; Multidimensional Collaborative Networks
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	a7b7
authors	Lopuck, Lisa
year	1996
title	Designing Multimedia A Visual Guide to Multimedia and Online Graphic Design
source	Berkeley, California, Peachpit Press
summary	A lavishly illustrated volume is primarily devoted to full-color photos of multimedia screen shots and artwork, offering explanations of title structure, user interface, and software dynamics.
series	other
last changed	2003/04/23 15:14

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