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 caadria2006_553
id caadria2006_553
authors MARY LOU MAHER, ZAFER BILDA, LEMAN FIGEN GÜL, DAVID MARCHANT
year 2006
title STUDYING COLLABORATIVE DESIGN IN FACE TO FACE, REMOTE SKETCHING, AND 3D VIRTUAL WORLD ENVIRONMENTS
doi https://doi.org/10.52842/conf.caadria.2006.x.j4o
source CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 553-555
summary The impact of collaborative design in virtual environments on the behaviour of designers depends on the nature of the design task and the resources available to the designers. By introducing new technology, we can identify the kinds of positive impacts that should be integrated, and the kinds of negative impacts that should be eliminated, in order to improve the collaborative design environment. We studied designers collaborating in three environments: (1) face-to-face with their current design and communication tools (pen and paper), (2) a shared remote drawing system (Group Board) with synchronous voice and video conference and (3) a 3D virtual world with synchronous voice and video conference. Collaborative design sessions of 5 architect pairs were video recorded. They respectively worked on separate design briefs in the three different design settings. Protocol analysis was used to study and compare collaborative design behaviour.
series CAADRIA
email
last changed 2022/06/07 07:50

_id cdrf2019_290
id cdrf2019_290
authors Mary Spyropoulos and Alisa Andrasek
year 2020
title Material Disruption
doi https://doi.org/https://doi.org/10.1007/978-981-33-4400-6_27
source Proceedings of the 2020 DigitalFUTURES The 2nd International Conference on Computational Design and Robotic Fabrication (CDRF 2020)
summary This paper examines the role of computational simulation of material processes with robotics fabrication, with the intent of examining its implications for architectural design and construction. Simulation techniques have been adopted in the automotive industry amongst others, advancing their design and manufacturing outputs. At present, architecture is yet to explore the full potential of this technology and their techniques. The need for simulation is evident in exploring the behaviours of materials and their relative properties. Currently, there is a distinct disconnect between the virtual model and its fabricated counterpart. Through research in simulation, we can begin to understand and clearly visualize the relationship between material behaviours and properties that can lead to a closer correlation between the digital design and its fabricated outcome. As the first phase of investigation, the material of clay is used due to its volatile qualities embedded within the material behaviour. The input geometry is constrained to rudimentary extruded forms in order to not obscure the behaviour of the material, but rather allow for it to drive the machine-making process.
series cdrf
email
last changed 2022/09/29 07:51

_id caadria2020_334
id caadria2020_334
authors Marzęcki, Waldemar
year 2020
title Spatial Continuity Diagram
doi https://doi.org/10.52842/conf.caadria.2020.2.577
source D. Holzer, W. Nakapan, A. Globa, I. Koh (eds.), RE: Anthropocene, Design in the Age of Humans - Proceedings of the 25th CAADRIA Conference - Volume 2, Chulalongkorn University, Bangkok, Thailand, 5-6 August 2020, pp. 577-586
summary The article presents the author's original Spatial Continuity Diagram SCD method. The method uses digital techniques to study the urban and architectural features of existing urban structures. The results of these studies are intended to facilitate design decisions regarding the harmonious development of existing urban buildings. The article also discusses a special software for conducting SCD study. The practical application of the research was discussed on the example of a design and implementation of one of the single-family housing estates.
keywords Mathematical simulations; urban composition; spatial continuity; heritage
series CAADRIA
email
last changed 2022/06/07 07:59

_id sigradi2004_151
id sigradi2004_151
authors María Estela Sánchez Cavazos
year 2004
title La gráfica digital dentro del proceso de diseño caso: Talleres de arquitectura de la u.a.a. [Digital Graphics in the Design Process. Case: the U.A.A. Architectural Studio]
source SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary This work is developing at the moment, tries to find elements that allow arm to a frame of reference for a doctoral thesis that studies the processes of architectonic design and the transformations that this one within the factories of education with the introduction of the digital representation undergoes. It is a study that it initiates in the 2003 with an applied cuasi-experiment to students of the masters in architecture of the Independent University of Nuevo León (Monterrey, México), (work presented/displayed in the forum SIGraDi 2003). Taking into account the results obtained in that one first work it was decided not to take part and to force the student to work with a specific type of tool (digital or traditional), but to leave them chose the work tool freely, observing his photographic process by means of video-recordings, registries and personal interviews with the purpose of explaining because of his processes. The registries were taken in the Factory from semestral Architectonic Design 5°, of the Independent University of Aguascalientes (Mexico).
series SIGRADI
email
last changed 2016/03/10 09:55

_id sigradi2006_c203d
id sigradi2006_c203d
authors Mas, Alberto Angel
year 2006
title El Paisaje Urbano. Estudio Comparativo de Estrategias de Investigación en Geográficas Distintas Mediante el Uso de Sistemas de Comunicación Dinámica [Urban landscape; comparative strategies study of different geography researches, throughout the use of dynamical communication system]
source SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006
summary This paper sets that in order to get a real sense in digital animations, it is requires to deal the representation and story like cinema do it, instead of only reproduction of moving images. Thus animated presentations of architectural projects should concentrate to tell main values and spatial qualities than technical information of building. The paper explains characteristics of cinematographic story, visual techniques and planning procedures. Remarking the search of narrative continuity and relationship to spectator’s imagination. Also it describes the experience to film a documentary of a real building in the city of Valparaiso and digital animations of same building. It discuses results of questionnaires taken to students about perception of architectural characteristics watching the documentary, simple animations and a animated presentation made with filmmaking concepts. This comparison showed a higher appraisal of architectural virtues than understanding of constructive characteristics, in digital media with narrative conditions.
series SIGRADI
type normal paper
email
last changed 2016/03/10 09:55

_id 409caadria2004
id 409caadria2004
authors Masayuki Okada, Kazuhisa Iki, Sadayuki Shimoda
year 2004
title Development of CAFM System for LCM on Building Maintenance and Management
doi https://doi.org/10.52842/conf.caadria.2004.681
source CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 681-692
summary The purpose of this study is to develop a Computer Aided Facility Management (CAFM) system to assist the optimal Life Cycle Management (LCM) business, especially in the repair and renewal planning works of the inhabited building Life Cycle Cost (LCC). This system is also useful for annual, mid and long term facility maintenance budget planning. Major steps of this study are as follows: (1) A Study on the actual process of the LCM business was undertaken to determine the required functions of the CAFM system. (2) We surveyed the calculation process of the LCC and examined the data processing method in order to determine an efficient LCC calculation method for the CAFM system. (3) Based on the above result, we developed each function required for the CAFM system. (4) The CAFM system was developed by unifying the above functions in a network browser environment such as data transaction management between database, LCC calculation and graphical representation applications. (5) We evaluate the CAFM system by using case studies of LCM works on actual buildings. This system contributes to the efficient maintenance works of the LCC, and is able to support the appropriate scheduling of LCM works.
series CAADRIA
email
last changed 2022/06/07 07:59

_id 55ca
authors Mase, Jitsuro
year 2000
title Moderato: 3D Sketch CAD with Quick Positioned Working Plane and Texture Modelling
doi https://doi.org/10.52842/conf.ecaade.2000.269
source Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 269-272
summary The lack of computer systems that can be easily used during the early stages of the architectural design process has been discussed for many years. The usual argument starts with the recognition that hand drawn sketches are an important tool in the early stage of both professional and student design because they can be used to visualise the designer’s ideas quickly and have the flexibility to handle any shape the designer imagines. Research has then mostly focused on using computer based sketch recognition to directly produce three dimensional models from hand drawn sketches. However sketch recognition still has certain problems that require the drawing action of users to be constrained in some way in order to be solved. If sketch recognition is still imperfect, the possibility of directly sketching within digital 3D space should be considered. Some systems allowing user to sketch in digital 3D space have been developed which do not depend on sketch recognition. Although Piranesi does not aim to support sketch design, it does allow the user to paint in the Z-buffer space - an unique idea termed "interactive rendering." SketchVRML tries to generate 3D geometrical data automatically from 2D hand drawn sketches by adding the depth value to the drawn lines according to the strength of line strokes. SketchBoX provides translucent surfaces in digital 3D space which can be glued onto existing objects or arranged anywhere in space. These surfaces have texture map data which can be modified by painting onto the texture. Transparent textures can be painted onto the surfaces to create see-through portions. Moderato also uses this technique to model a polygonÕs shape.
keywords Sketch, Early Stage, Interface, 3D Modelling
series eCAADe
email
more http://www.uni-weimar.de/ecaade/
last changed 2022/06/07 07:59

_id 1c6b
authors Mase, K., Sumi, Y. and Nishimoto, K.
year 1998
title Informal conversation environment for collaborative concept formation
source Community Computing: Collaboration over Global Information Networks, eds. T. Ishida. John Wiley & Sons
summary This chapter focuses on facilitating the early stages of community formation. We spend a great deal of time every day in informal conversations, which are very important for the early stages of forming various kinds of communities. People engaged in conversation will not only share information, but also try to listen to and understand others, and as well as work together to find common objectives. In the early stages of forming the communities, agreement on a common concept through such a process is an essential element in the bonding of the group. Conversation environments on networked computers, e.g., via e-mail, online chat, and news groups, eliminate the spatial and temporal constraints of forming these communities but allow for the reuse of accumulated dialogs from previous interactions. Moreover, a computerized environment can directly support information sharing and mutual understanding. Conventional computerized conversation support systems, however, often force their users to follow some predetermined conversation model, prepared by designers beforehand. Thus, it can be difficult to apply these systems to informal conversations. We are developing a system called AIDE (Augmented Informative Discussion Environment) that facilitates our informal daily conversations. It does not require users to provide additional information in designated forms during a conversation, but rather it provides functionality to enhance and support the informal conversation. AIDE features three main functions: the discussion viewer, the conversationalist agent and the personal desktop. Using these functions, the participants can attain mutual understanding, crystallize ideas, and share common concepts. AIDE is considered to be not only a tool for supporting informal conversation but also useful Communityware, especially for facilitating the initial stage of community formation. This chapter first discusses a model of the group thinking process and applies it to community formation. Then, the structure of the AIDE system is presented using a few example conversations to illustrate how the AIDE system can support communication between people. AIDE displays potential as communityware.
series other
last changed 2003/04/23 15:14

_id ecaade2023_222
id ecaade2023_222
authors Massafra, Angelo and Gulli, Riccardo
year 2023
title Enabling Bidirectional Interoperability between BIM and BPS through Lightweight Topological Models
doi https://doi.org/10.52842/conf.ecaade.2023.2.187
source Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 187–196
summary Building Performance Simulation (BPS) tools have become prevalent in the Architecture, Engineering, Construction, and Operation (AECO) sector to assess building performance for various purposes. However, some challenges persist in achieving full interoperability between BPS and Building Information Modeling (BIM). This paper proposes a different approach to BIM-BPS interoperability based on creating space-based Topological Models (TM) for data exchange using Visual Programming (VP) algorithms. The VP approach allows for complex geometrical operations, the automatic reflection of changes made to the BIM model in the BPS model, and easy synchronous modification of these models to encourage design exploration. The proposed workflow is tested on the heritage building of the Faculty of Engineering in Bologna, Italy, with the aim of establishing the basis for developing a Digital Twin (DT) of the building for optimising its energy management. This approach can also be used for the early-stage analysis of new constructions, providing a comprehensive view of building performance.
keywords Digital Twins, Building Topology, Building Information Modeling, Building Performance Simulation, Building Energy Modeling
series eCAADe
email
last changed 2023/12/10 10:49

_id ecaade2024_297
id ecaade2024_297
authors Massafra, Angelo; Coraglia, Ugo Maria; Predari, Giorgia; Gulli, Riccardo
year 2024
title Building Information Model Analysis Through Large Language Models and Knowledge Graphs
doi https://doi.org/10.52842/conf.ecaade.2024.1.685
source Kontovourkis, O, Phocas, MC and Wurzer, G (eds.), Data-Driven Intelligence - Proceedings of the 42nd Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2024), Nicosia, 11-13 September 2024, Volume 1, pp. 685–694
summary The advent of Large Language Models (LLMs) seems to mark a break between past and present in the methods of structuring knowledge, making it possible today to transfer this capability to machines even in a sector like AECO, always been information-intensive but resistant to technological transition. In terms of knowledge, the most established paradigm has been Building Information Modelling (BIM), with IFC functioning as the main schema for standardizing the industry's information. Added to this are knowledge graphs that, emerging with semantic web technologies, allow storing knowledge in structures consisting of nodes and edges with semantic meanings. Nevertheless, a barrier to the widespread adoption of BIM is its accessibility. Querying BIM models is often limited for stakeholders without digital skills, who may struggle to access the vast amount of information stored in these complex informative models. In an attempt to outline one of the possible uses of LLMs in BIM, this research proposes a method for querying BIM models through textual prompts aimed at analyzing a selected case study. In the workflow, a BIM model is first realized. Then, data is integrated into a knowledge graph. Next, ChatGPT's LLMs are used to activate query functions for the analysis of the graph. The results of the queries are displayed in a user-friendly graphical user interface. The study's outcomes offer insights for researchers and industry professionals, highlighting emerging research potentials for LLMs in the field.
keywords Building Information Modeling, Large Language Models, Natural Language Processing, Knowledge Graphs
series eCAADe
email
last changed 2024/11/17 22:05

_id sigradi2021_49
id sigradi2021_49
authors Massara Rocha, Bruno, Alvarenga, Augusto and Bolssoni, Gabriela
year 2021
title Open-Source Social Housing Architecture: Wikihouse “Sr. Manoel”
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. 91–102
summary This is the first Wikihouse project to be built in a vulnerable community in Brazil. Brazil is a country with a large housing deficit concentrated in large metropolitan regions. The work is the result of an initiative to address part of this demand using the Wikihouse open-source system. The project was developed using the Design Science Research methodology in three stages: conception, prototyping and production of an experiential module on a 1:1 scale. The results demonstrated the need to develop a better structured design ecology to make the Wikihouse system viable in the Brazilian context. This design ecology concerns an integrated network of services that includes project development centers, prototyping spaces, mini-factories for production, pre-assembly and batch organization environments, logistics services, human resource management teams and integration with the community, in addition to registration, documentation and communication.
keywords Wikihouse, habitaçao de interesse social, projeto de arquitetura, opensource, fabricaçao digital
series SIGraDi
email
last changed 2022/05/23 12:10

_id sigradi2017_006
id sigradi2017_006
authors Massara Rocha, Bruno; Leonado Valbão Venancio
year 2017
title Impressão 3D e processo de projeto paramétrico aplicado ao design emergencial [3D printing and parametric design process applied to emergency 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.45-50
summary After the biggest environmental disaster in Brazil, the issue of emergency design emerged. The emergency design is guided by effective and agile responses to disasters and develops specific project intelligences which deals with the particularities and complexities of emergency situations. In this paper concepts and experimental solutions of emergency design are investigated using parametric design and 3d printing. The project explored light biomimetic structural frames and surfaces and analyses the potential of biodegradable materials such as cellulose acetate in the production of these components to create spatial architectural solutions.
keywords Emergency Design; Surface Design; Biomimetic; 3D Printing; Parametric Design
series SIGRADI
email
last changed 2021/03/28 19:58

_id sigradi2017_044
id sigradi2017_044
authors Massara Rocha, Bruno; Leonado Valbão Venancio
year 2017
title Impressão 3D e processo de projeto paramétrico aplicado ao design emergencial [3D printing and parametric design process applied to emergency 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.301-306
summary After the biggest environmental disaster in Brazil, the issue of emergency design emerged. The emergency design is guided by effective and agile responses to disasters and develops specific project intelligences which deals with the particularities and complexities of emergency situations. In this paper concepts and experimental solutions of emergency design are investigated using parametric design and 3d printing. The project explored light biomimetic structural frames and surfaces and analyses the potential of biodegradable materials such as cellulose acetate in the production of these components to create spatial architectural solutions.
keywords Emergency Design; Surface Design; Biomimetic; 3D Printing; Parametric Design
series SIGRADI
email
last changed 2021/03/28 19:58

_id sigradi2013_43
id sigradi2013_43
authors Massara Rocha, Bruno; Mario Victor Marques Margotto; Victor Nolasco Correa Malheiros
year 2013
title Princípios e Protótipos Improvisacionais nas Interfaces entre o Design, a Arquitetura e a Arte Digital [Improvisational Principles and Prototypes in the Interface of Design, Architecture and Digital Art]
source SIGraDi 2013 [Proceedings of the 17th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-7051-86-1] Chile - Valparaíso 20 - 22 November 2013, pp. 489 - 492
summary In this paper we present final results of interface design processes developed regarding a low-tech-oriented procedures supported by computer vision and physical computing techniques. All the prototypes presented were developed in academic context in a few workshops grounded in interdisciplinary approaches between art, design and architecture. There were applied artistic creative processes such as improvisation, reprograming and post-production in the development of innovative users interfaces from the perspective of re-appropriation of existent objects and its cultural nature.
keywords Experimental prototypes; Computer vision; Visual computing; Reprogramming; Interfaces
series SIGRADI
email
last changed 2016/03/10 09:55

_id sigradi2018_1405
id sigradi2018_1405
authors Massara Rocha, Bruno; Santo Athié, Katherine
year 2018
title Emerging senses from Smart Cities phenomenon
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. 434-441
summary The paper analyses the emerging senses from the Smart Cities phenomenon, using as background Lemos (2017), Maia (2013), Rozestraten (2016), Söderström, Paache & Klauser (2014) and evaluating the speeches found in the SmartCity Expo Curitiba. We identified three basic senses: the binary utopia/ficcion, business and informational city, discussed by philosophers such as Foucault (2017), Lévy (2011) e Harvey (2014). The results outline the importance of political role of technology and adverts that it must not be controlled by business. Finally, the paper concludes that the smartest technology is one that opens space to the inclusion of greater human expressivity and subjectivity, not inducing a space of control.
keywords Smart cities; Digital technologies; Technopolitics;
series SIGRADI
email
last changed 2021/03/28 19:58

_id sigradi2018_1451
id sigradi2018_1451
authors Massara Rocha, Bruno; Simão de Lima, Camilo
year 2018
title Open Design: Principles, Interfaces and Values Analysis
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. 1241-1249
summary This article discuss in which terms design, distribution and production processes have changed after the great technological revolution in a post-industrial era in order to become more democratic and easily shared. After a brief analysis of the economic impact brought by this digital revolution, the article presents newly design values and production environments that emerged from it. We focus in the Open Design movement to show how its process introduce new ways to create and produce architecture. The main idea is to enlighten and explain how Open Design enhances innovation and foster a new democratic practice based on freedom, collaboration and experimentation.
keywords Shared project; Open design; Maker movement; Digital fabrication; Cognitive capitalism
series SIGRADI
email
last changed 2021/03/28 19:58

_id sigradi2022_205
id sigradi2022_205
authors Massara, Bruno; Bortolotti, Kevyn
year 2022
title Open-source responsive solar tracker performance evaluation: a comparative study
source Herrera, PC, Dreifuss-Serrano, C, Gómez, P, Arris-Calderon, LF, Critical Appropriations - Proceedings of the XXVI Conference of the Iberoamerican Society of Digital Graphics (SIGraDi 2022), Universidad Peruana de Ciencias Aplicadas, Lima, 7-11 November 2022 , pp. 261–270
summary Due to the current energy crisis in Brazil and in the world, it is important to explore renewable energy sources, such as photovoltaic systems. Considering this, this research analyzes a responsive capture system called Girassol, which seeks better efficiency in energy production. Tests were performed on the mechanism to assess the advantages and disadvantages of using the solar tracker compared to fixed systems. The tests were carried out using the physical prototype and computational tools to compare the results. The methodology used was Design Science Research, which has to develop and improve affordable solutions, based on experiments and computational simulations. Compared to the physical prototype it was possible observe that there is a greater energy upgrade of the Girassol mainly in the initial and final moments of the daylight hours.
keywords Parametric Analysis, Solar tracker, Ladybug, Energy efficiency, Responsive system
series SIGraDi
email
last changed 2023/05/16 16:55

_id ecaade2013_275
id ecaade2013_275
authors Massara, Bruno; Bosi, Felipe; Margotto, Mário and Malheiros, Victor
year 2013
title Critical Methods in Computer-Mediated Performance and Phenomenology-Based Systems
doi https://doi.org/10.52842/conf.ecaade.2013.1.383
source Stouffs, Rudi and Sariyildiz, Sevil (eds.), Computation and Performance – Proceedings of the 31st eCAADe Conference – Volume 1, Faculty of Architecture, Delft University of Technology, Delft, The Netherlands, 18-20 September 2013, pp. 383-389
summary The main goal of this article is to provide a critical reflection on what computing may contribute to an open understanding of performance in architecture. We propose a phenomenological approach to computing since it combines several concepts concerning the user’s experience of space. In order to study the human movement in space, we will present the results of a sequence of applications using open source software Processing, including time-lapse movies, frame differencing analysis and blending images tools. The research used the context of a existent building at the campus of Universidade Federal do Espírito Santo. A series of interviews with users were also conducted in order to validate the computing analysis.
wos WOS:000340635300040
keywords Performance; computing; phenomenology; programming.
series eCAADe
email
last changed 2022/06/07 07:59

_id ijac20053302
id ijac20053302
authors Massera, Carmen Aroztegui
year 2005
title The Calabozo:Virtual Reconstruction of a Place Based on Testimonies
source International Journal of Architectural Computing vol. 3 - no. 3, 281-298
summary The objective the research reported here is to create a visualization of a place based on personal experiences. My research addresses this issue through a case study: the visualization of a women's political prison during the Uruguayan military dictatorship (1973–85). The proposed visualization is based on these women's personal experiences of the solitary confinement cell (calabozo). Compared with their male counterpart, women's memories about prison have been traditionally relegated to a second level in Uruguay. The visualization aims to communicate these women's experiences of the calabozo through a video installation. This article first reviews relevant precedents to the case study and to virtual reconstructions and later describes the video installation.
series journal
more http://www.ingentaconnect.com/search/expand?pub=infobike://mscp/ijac/2005/00000003/00000003/art00003
last changed 2007/03/04 07:08

_id 8b37
authors Massie, T.
year 1998
title A Tangible Goal for 3D Modeling
source IEEE Computer Graphics and Applications. pp. 62 - 65. Vol. 18, Issue: 3
summary Although the speed of computers increases exponentially, the amount and quality of useful work that we perform on them seems to increase linearly at best. Faster processors are not enough-to significantly increase the utility of computers requires new computer interfaces. The keyboard was adequate for text-based applications, but the advent of the desktop metaphor and windows computing environment demanded a new mechanical interface-the mouse. As we progress into applications that incorporate interactive life-like 3D computer graphics, the mouse falls short as a user interface device, and it becomes obvious that 3D computer graphics could achieve much more with a more intuitive user interface mechanism. Haptic interfaces, or forcefeedback devices, promise to increase the quality of humancomputer interaction by accommodating our sense of touch. Of all the senses, only touch is bidirectional-allowing us to perceive and change objects simultaneously in the same location. Because the sense of touch is so compelling, researchers have studied it for some time.1,2 (Refer to the annual proceedings of the Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, published by the American Society of Mechanical Engineers, New York.) Various commercial devices are now available that can accommodate1 even seven degrees of freedom. I used the three degrees-of-freedom Phantom haptic interface for most of the interactions described in this article. Users interact with the Phantom interface with their finger in a thimble or by holding a stylus
series journal paper
last changed 2003/04/23 15:50

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