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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Hits 1 to 20 of 627

_id e6fb
authors McFadzean, Jeanette
year 1999
title Computational Sketch Analyser (CSA): Extending the Boundaries of Knowledge in CAAD
doi https://doi.org/10.52842/conf.ecaade.1999.503
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 503-510
summary This paper focuses on the cognitive problem-solving strategies of professional architectural designers and their use of external representations for the production of creative ideas. Using a new form of protocol analysis (Computational Sketch Analysis), the research has analysed five architects' verbal descriptions of their cognitive reasoning strategies during conceptual designing. It compares these descriptions to a computational analysis of the architects' sketches and sketching behaviour. The paper describes how the current research is establishing a comprehensive understanding of the mapping between conceptualisation, cognition, drawing, and complex problem solving. The paper proposes a new direction for Computer Aided Architectural Design tools (CAAD). It suggests that in order to extend the boundaries of knowledge in CAAD an understanding of the complex nature of architectural conceptual problem-solving needs to be incorporated into and supported by future conceptual design tools.
keywords Computational Sketch Analysis, Conceptual Design
series eCAADe
email
last changed 2022/06/07 07:58

_id 9e26
authors Do, Ellen Yi-Luen,
year 1999
title The right tool at the right time : investigation of freehand drawing as an interface to knowledge based design tools
source College of Architecture, Georgia Institute of Technology
summary Designers use different symbols and configurations in their drawings to explore alternatives and to communicate with each other. For example, when thinking about spatial arrangements, they draw bubble diagrams; when thinking about natural lighting, they draw a sun symbol and light rays. Given the connection between drawings and thinking, one should be able infer design intentions from a drawing and ultimately use such inferences to program a computer to understand our drawings. This dissertation reports findings from empirical studies on drawings and explores the possibility of using the computer to automatically infer designer's concerns from the drawings a designer makes. This dissertation consists of three parts: 1) a literature review of design studies, cognitive studies of drawing and computational sketch systems, and a set of pilot projects; 2) empirical studies of diagramming design intentions and a design drawing experiment; and 3) the implementation of a prototype system called Right-Tool-Right-Time. The main goal is to find out what is in design drawings that a computer program should be able to recognize and support. Experiments were conducted to study the relation between drawing conventions and the design tasks with which they are associated. It was found from the experiments that designers use certain symbols and configurations when thinking about certain design concerns. When thinking about allocating objects or spaces with a required dimensions, designers wrote down numbers beside the drawing to reason xviii about size and to calculate dimensions. When thinking about visual analysis, designers drew sight lines from a view point on a floor plan. Based on the recognition that it is possible to associate symbols and spatial arrangements in a drawing with a designer's intention, or task context, the second goal is to find out whether a computer can be programed to recognize these drawing conventions. Given an inferred intention and context, a program should be able to activate appropriate design tools automatically. For example, concerns about visual analysis can activate a visual simulation program, and number calculations can activate a calculator. The Right- Tool-Right-Time prototype program demonstrates how a freehand sketching system that infers intentions would support the automatic activation of different design tools based on a designers' drawing acts.
series thesis:PhD
email
more http://www.arch.gatech.edu/~ellen/thesis.html
last changed 2004/10/04 07:49

_id 722c
authors Gero, John S.
year 1999
title A Model of Designing that Includes its Situatedness
doi https://doi.org/10.52842/conf.caadria.1999.235
source CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 235-241
summary Current models of designing are inadequate as a basis for the development of CAAD tools for use at the conceptual stages of designing. Such models appear to be only satisfactory for the detail stages of designing. Further, current models of designing are not in accord with our present knowledge of designing. This gap has created difficulties in the development of suitable computational support tools for designers. The development of the model proposed in this paper aims to begin to fill that gap and hence provide a foundation for a new generation of computer-based design support tools, potentially applicable at the conceptual stage of designing.
series CAADRIA
email
more http://www.arch.usyd.edu.au/~john/kcdc
last changed 2022/06/07 07:51

_id ab13
authors Mcfadzean, J., Cross, N. and Johnson, J.H.
year 1999
title An Analysis of Architectural Visual Reasoning in Conceptual Sketching via Computational Sketch Analysis CSA
source Proc. International Conference on Information Visualisation, IVí99. IEEE Computer Society, London
summary Visual reasoning in design is facilitated by sketching. This research investigates how designers sketch, specifically analysing the physical details of mark making. It relates the graphical representations to the abstract cognitive processes of architectural design. A new form of protocol analysis has been developed using video and computer records of designers' sketching activity. The analysis of the resulting data compares the designer's retrospective commentary and interpretations of the sketching activity with the computer's record of that activity. The analysis will lead to a greater understanding of the relationships between 'Design Events' and 'Graphical Events' and thus how the notational activity of sketching supports the cognitive activity of conceptual design.
series other
last changed 2003/04/23 15:14

_id d8df
authors Naticchia, Berardo
year 1999
title Physical Knowledge in Patterns: Bayesian Network Models for Preliminary Design
doi https://doi.org/10.52842/conf.ecaade.1999.611
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 611-619
summary Computer applications in design have pursued two main development directions: analytical modelling and information technology. The former line has produced a large number of tools for reality simulation (i.e. finite element models), the latter is producing an equally large amount of advances in conceptual design support (i.e. artificial intelligence tools). Nevertheless we can trace rare interactions between computation models related to those different approaches. This lack of integration is the main reason of the difficulty of CAAD application to the preliminary stage of design, where logical and quantitative reasoning are closely related in a process that we often call 'qualitative evaluation'. This paper briefly surveys the current development of qualitative physical models applied in design and propose a general approach for modelling physical behaviour by means of Bayesian network we are employing to develop a tutoring and coaching system for natural ventilation preliminary design of halls, called VENTPad. This tool explores the possibility of modelling the causal mechanism that operate in real systems in order to allow a number of integrated logical and quantitative inference about the fluid-dynamic behaviour of an hall. This application could be an interesting connection tool between logical and analytical procedures in preliminary design aiding, able to help students or unskilled architects, both to guide them through the analysis process of numerical data (i.e. obtained with sophisticate Computational Fluid Dynamics software) or experimental data (i.e. obtained with laboratory test models) and to suggest improvements to the design.
keywords Qualitative Physical Modelling, Preliminary Design, Bayesian Networks
series eCAADe
email
last changed 2022/06/07 07:59

_id ga9924
id ga9924
authors Cardalda, Juan Jesus Romero J.J.
year 1999
title Artificial Music Composer
source International Conference on Generative Art
summary Traditional Musical Computation Systems had to face the differences between the computational techniques and the characteristics of musical creation. Characteristics such as a high degree of subjectivity, a great irrational component, and a learning process based on the use of examples and environmental absorption, have made music difficult to be formalized through algorithmic methods or classical Artificial Intelligence methods such as Expert Systems. We propose the creation of a cybernetic model of a human composer in a primeval stage of human musical evolution, following a paradigm of cognitive complex models creation, based on the use of the human reference, not only in a static point of view but also considering its evolution through time. Therefore, the proposed system simulates musical creation in one of the first stages of musical evolution, whose main characteristics are the percussive and choral aspects. The system is based on Genetic Algorithms, whose genetic population is integrated by several tribes. This model carries out the task of musical composition, led by the user who expresses his/her musical taste assigning a punctuation to each tribe. The GA selects the worse tribes as individuals to be eliminated. In order to select those tribes which are going to be used as parents, a random function is used, having each tribe a probality proportional to its punctuation. The new tribe is produced by crossing the parent tribes in each individual. Afterwards, mutation takes place in the created individuals. The experiments carried out with this system have proved its functionality in the composition of rhythmic patterns. It is intended to enlarge the experiment's scope by communicating the system via Internet. This would enable its use by users of different musical cultures, taking into account that the system is user-friendly, since it requires no musical knowledge.
series other
email
more http://www.generativeart.com/
last changed 2003/08/07 17:25

_id 6126
authors De Grassi, M., Giretti A. and Pinese, P.
year 1999
title Knowledge Structures of Episodic Memory in Architectural Design: An Example of Protocol Analysis
doi https://doi.org/10.52842/conf.ecaade.1999.576
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 576-583
summary The Protocol Analysis of the design process is a very recent and very promising research field. It is believed that good application-oriented developments are possible mainly in the tutorial field (ITS). The research conducted up to now has primarily dealt with the study of the design process. On the contrary, we propose an investigation experiment on the knowledge structures relative to the use of the episodic memory in the architectural design. The proposed experiment concerns the monitoring of the cognitive processes utilised by tutors and students in a brief, but yet complete design session. The results have lead to a synthetic model (computational model) of the adopted knowledge structures, and to a complete index system oriented and organised according to semantic fields. The application of the synthetic model to the design process analysis of students and tutors enabled the definition of the different utilisation strategies of episodic memory to be defined. The results obtained will make up the structure of a tutorial program for the architectural design.
keywords Intelligent Tutoring Systems (ITSs), Architectural Design Education, Case Based Reasoning, Protocol Analisys, Design Cognition
series eCAADe
email
last changed 2022/06/07 07:55

_id 5377
authors Frazer, J.H., Tang, M.X. and Jian, S.
year 1999
title Towards a Generative System for Intelligent Design Support
doi https://doi.org/10.52842/conf.caadria.1999.285
source CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 285-294
summary In the development of intelligent computer aided design systems, three important issues need to considered. These issues are: how to support the generation of product concepts using evolutionary computation techniques; how to use intelligent databases and constraint management systems for detailed exploration of product embodiment; and how to integrate rapid prototyping facilities for product evaluation. In this paper, we present a brief review of knowledge based design and evolutionary design and discuss ways of integrating both in the development of a generative design system. Based on this review, we present the model and its applications of a generative design system utilizing a number of AI and evolutionary computation techniques. This generative design model is intended to provide a generic computational framework for the development of intelligent design support systems.
series CAADRIA
email
last changed 2022/06/07 07:50

_id diss_kuo
id diss_kuo
authors Kuo, C.J.
year 1999
title Unsupervised Dynamic Concurrent Computer-Aided Design Assistant
source Los Angeles: UCLA
summary The increasing capability of computer-aided architectural design systems has strengthened the role that the computer plays in the workplace. Due to the complexity of developing new techniques and research, these systems are undertaken mostly by scientists and engineers without significant architectural input (Willey, 1991). The design concept of these systems may be based on a well-defined and well-understood process, which is not yet realized in architectural design (Galle, 1994). The output of such research may not be easily adapted into the design process. Most of the techniques assume a complete understanding of the design space (Gero and Maher, 1987) (Willey, 1991). The description or construction of the design space is always time and space consuming, and the result can never be complete due to the ever-changing nature of architectural design. This research intends to initiate a solution for the above problems. The proposed system is an unsupervised-dynamic-concurrent-computer-aided-design assistant. The “unsupervised” means the learning process is not supervised by the user because it is against the designer's nature to “think-aloud” in the design studio and it also increases the work load. It is dynamic because the size of the knowledge base is constantly changing. Concurrent means that there are multiple procedures active simultaneously. This research focuses on learning the operational knowledge from an individual designer and reapplying it in future designs. A computer system for this experiment is constructed. It is capable of The preliminary result shows a positive feedback from test subjects. The purpose of this research is to suggest a potent computational frame within which future developments may flourish.
series thesis:PhD
last changed 2003/11/28 07:37

_id ga0010
id ga0010
authors Moroni, A., Zuben, F. Von and Manzolli, J.
year 2000
title ArTbitrariness in Music
source International Conference on Generative Art
summary Evolution is now considered not only powerful enough to bring about the biological entities as complex as humans and conciousness, but also useful in simulation to create algorithms and structures of higher levels of complexity than could easily be built by design. In the context of artistic domains, the process of human-machine interaction is analyzed as a good framework to explore creativity and to produce results that could not be obtained without this interaction. When evolutionary computation and other computational intelligence methodologies are involved, every attempt to improve aesthetic judgement we denote as ArTbitrariness, and is interpreted as an interactive iterative optimization process. ArTbitrariness is also suggested as an effective way to produce art through an efficient manipulation of information and a proper use of computational creativity to increase the complexity of the results without neglecting the aesthetic aspects [Moroni et al., 2000]. Our emphasis will be in an approach to interactive music composition. The problem of computer generation of musical material has received extensive attention and a subclass of the field of algorithmic composition includes those applications which use the computer as something in between an instrument, in which a user "plays" through the application's interface, and a compositional aid, which a user experiments with in order to generate stimulating and varying musical material. This approach was adopted in Vox Populi, a hybrid made up of an instrument and a compositional environment. Differently from other systems found in genetic algorithms or evolutionary computation, in which people have to listen to and judge the musical items, Vox Populi uses the computer and the mouse as real-time music controllers, acting as a new interactive computer-based musical instrument. The interface is designed to be flexible for the user to modify the music being generated. It explores evolutionary computation in the context of algorithmic composition and provides a graphical interface that allows to modify the tonal center and the voice range, changing the evolution of the music by using the mouse[Moroni et al., 1999]. A piece of music consists of several sets of musical material manipulated and exposed to the listener, for example pitches, harmonies, rhythms, timbres, etc. They are composed of a finite number of elements and basically, the aim of a composer is to organize those elements in an esthetic way. Modeling a piece as a dynamic system implies a view in which the composer draws trajectories or orbits using the elements of each set [Manzolli, 1991]. Nonlinear iterative mappings are associated with interface controls. In the next page two examples of nonlinear iterative mappings with their resulting musical pieces are shown.The mappings may give rise to attractors, defined as geometric figures that represent the set of stationary states of a non-linear dynamic system, or simply trajectories to which the system is attracted. The relevance of this approach goes beyond music applications per se. Computer music systems that are built on the basis of a solid theory can be coherently embedded into multimedia environments. The richness and specialty of the music domain are likely to initiate new thinking and ideas, which will have an impact on areas such as knowledge representation and planning, and on the design of visual formalisms and human-computer interfaces in general. Above and bellow, Vox Populi interface is depicted, showing two nonlinear iterative mappings with their resulting musical pieces. References [Manzolli, 1991] J. Manzolli. Harmonic Strange Attractors, CEM BULLETIN, Vol. 2, No. 2, 4 -- 7, 1991. [Moroni et al., 1999] Moroni, J. Manzolli, F. Von Zuben, R. Gudwin. Evolutionary Computation applied to Algorithmic Composition, Proceedings of CEC99 - IEEE International Conference on Evolutionary Computation, Washington D. C., p. 807 -- 811,1999. [Moroni et al., 2000] Moroni, A., Von Zuben, F. and Manzolli, J. ArTbitration, Las Vegas, USA: Proceedings of the 2000 Genetic and Evolutionary Computation Conference Workshop Program – GECCO, 143 -- 145, 2000.
series other
email
more http://www.generativeart.com/
last changed 2003/08/07 17:25

_id 3033
authors Oxman, R., Golan, E., Nir, E. and Brainin, D.
year 1999
title Schema Emergence in Collaborative Design
doi https://doi.org/10.52842/conf.caadria.1999.215
source CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 215-224
summary In this paper, we report on work in which media environments are developed to support schema emergence in collaborative design. We present a conceptual framework to support the cognitive phenomena of emergence in CAAD environment. First, we introduce and present a cognitive conception of schema emergence in design. We then discuss our computational model of schema emergence. Based upon this model we propose a conceptual framework to support emergence in collaborative design. Finally, the potential of the present implementation and the computational tools which support the approach are discussed .
series CAADRIA
email
last changed 2022/06/07 08:00

_id 60a5
authors Oxman, R.E.
year 1999
title Educating the designerly thinker
source Design Studies, Vol 20 No 2
summary This paper presents a hypothesis about design education that is framed within and derived from cognitive theories of learning. The relevance of design thinking and cognitive approaches to the development of pedagogical approaches in design education is presented and discussed. A conceptual model for design education that emphasizes the acquisition of explicit knowledge of design is proposed. The acquisition of knowledge is achieved through the explication of cognitive structures and strategies of design thinking. The explication process is constructed by exploiting a representational formalism, and a computational medium which supports both the learning process as well as the potential re-use of this knowledge. Finally, an argument is presented that the measure of learning, generally equated with the evaluation of the product of designing, can instead be based upon evaluating learning increments of acquired knowledge.
series journal paper
email
last changed 2003/04/23 15:50

_id 9dfa
authors Ries, R. and Mahdavi, A.
year 1999
title Environmental Life Cycle Assessment in an Integrated CAD Environment: The Ecologue Approach
source Proceedings of the Eighth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-8536-5] Atlanta, 7-8 June 1999, pp. 351-363
summary Construction and operation of buildings is a major cause of resource depletion and environmental pollution. Computational performance evaluation tools could support the decision making process in environmentally responsive building design and play an important role in environmental impact assessment, especially when a life cycle assessment (LCA) approach is used. The building domain, however, presents notable challenges to the application of LCA methods. For comprehensive environmental impact analysis to be realized in a computational support tool for the building design domain, such tools must a) have an analysis method that considers the life cycle of building construction, operation, and decommissioning, b) have a representation that is able to accommodate the data and computability requirements of the analysis method and the analysis tool, and c) be seamlessly integrated within a multi-aspect design analysis environment that can provide data on environmentally relevant building operation criteria. This paper reviews the current state of assessment methods and computational support tools for LCA, and their application to building design. Then, the implementation of an application (ECOLOGUE) for comprehensive computational assessment of environmental impact indicators over the building life cycle is presented. The application is a component in a multi-aspect space-based CAD and evaluation environment (SEMPER). The paper describes the use and typical results of ECOLOGUE system via illustrative examples.
keywords Life Cycle Assessment, Integrated Computational Environmental Analysis
series CAAD Futures
email
last changed 2006/11/07 07:22

_id ga9908
id ga9908
authors Senagala, Mahesh
year 1999
title Artistic Process, Cybernetics of Self and the Epistemology of Digital Technology
source International Conference on Generative Art
summary From the viewpoint of Batesonian cybernetics, ‘conscious purpose’ and artistic process are distinct ends of a spectrum of the functioning of self. Artistic activities— by which I mean art, poetry, play, design, etc.— involve processes that are beneath the stratum of consciousness. By definition, consciousness is selective awareness and is linear in execution and limited in its capability to synthesize complex parameters. As Heidegger pointed out, technology is a special form of knowledge (episteme). A machine is a manifestation of such a knowledge. A machine is a result of conscious purpose and is normally task-driven to accomplish a specific purpose(s). The questions this paper raises are to do with the connections between conscious purpose, artistic process and digital technology. One of the central questions of the paper is "if artistic process requires an abandonment or relinquishment of conscious purpose at the time of the generation of the work of art, and if the artistic process is a result of vast number of ‘unconscious’ forces and impulses, then could we say that the computer would ever be able to ‘generate’ or ‘create’ a work of art?" In what capacity and what role would the computer be a part of the generative process of art? Would a computer be able to ‘generate’ and ‘know’ a work of art, which, according to Bateson, requires the abandonment of conscious purpose? The ultimate goal of the paper is to unearth and examine the potential of the computers to be a part of the generative process of what Bateson has called "total self as a cybernetic model". On another plane of discourse, Deleuze and Guattari have added a critical dimension to the discourse of cybernetics and models of human mind and the global computer networks. Their notion of ‘rhizome’ has its roots in Batesonian cybernetics and the cybernetic couplings between the ‘complex systems’ such as human mind, biological and computational systems. Deleuze and Guattari call such systems as human brain and the neural networks as rhizomatic. Given the fact that the computer is the first known cybernetic machine to lay claims to artificial intelligence, the aforementioned questions become even more significant. The paper will explore how, cybernetically, the computer could be ‘coupled’ with ‘self’ and the artistic process — the ultimate expression of human condition. These philosophical and artistic explorations will take place through a series of generative artistic projects (See the figure below for an example) that aim at understanding the couplings and ‘ecology’ of digital technology and the cybernetics of self.
series other
email
more http://www.generativeart.com/
last changed 2003/08/07 17:25

_id e199
authors Simondetti, Alvise
year 1999
title Remote Computer Generated Physical Prototyping Based Design
source AVOCAAD Second International Conference [AVOCAAD Conference Proceedings / ISBN 90-76101-02-07] Brussels (Belgium) 8-10 April 1999, pp. 229-236
summary This research explores some of the opportunities offered by the field of computer aided design. It differs from much of the research in the field in the sense that it extends beyond the boundaries of the computer screen by building and testing a computational and communication design environment made of computers, computer peripherals and digital communication devices. From our observation of the designer's interaction with the computer generated physical prototyping systems we were able to confirm the unique haptic feedback and understanding of complex three- dimensional geometry. We also found limitations of the environment in relation to evolutionary design. It was clear from those experiments with algorithmically generated design alternatives that potentially terrific opportunities lies in their combination with computer generated physical prototypes and manufacturing systems.
series AVOCAAD
last changed 2005/09/09 10:48

_id 91c8
authors Stellingwerff, Martijn
year 1999
title Evocation and Serendipity in a Cyberreal World
source AVOCAAD Second International Conference [AVOCAAD Conference Proceedings / ISBN 90-76101-02-07] Brussels (Belgium) 8-10 April 1999, pp. 181-188
summary Adding two apples to three oranges is not possible in a purely computational way. It takes creativity to see that you have got five pieces of … fruit. Computation implies exact solutions while creativity is needed when there is an arbitrary gap or bias in a given situation. This paper is about the explicit introduction of gaps and biases in a visually simulated world. The computer is treated as a medium in which reference information from a virtual city model is confronted with sketch objects. The juxtaposition of referential information and sketch information delivers images that can evoke new ideas. The serendipity (gift to pick up ideas) of the designer transforms the given capricious cyber-real world into useful ideas and inventions. This process is supposed to trigger creativity for urban and architectural design.
series AVOCAAD
email
last changed 2005/09/09 10:48

_id 5b5a
authors Yu, W. and Skibniewski, M.J.
year 1999
title A neuro-fuzzy computational approach to constructability knowledge acquisition for construction technology evaluation
source Automation in Construction 8 (5) (1999) pp. 539-552
summary This paper describes a methodology for constructability knowledge acquisition of construction technologies. The methodology combines a neuro-fuzzy network-based approach with genetic algorithms. The combination of fuzzy logic with learning abilities of neural networks and genetic algorithms may allow for automatic acquisition of constructability knowledge from training examples and for providing understandable explanations for the reasoning process. The proposed methodology can provide a mechanism to trace back factors causing unsatisfactory construction performance and the necessary feedback to construction engineers for technology innovation. An application example is provided to demonstrate the capabilities of the proposed methodology.
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 21:23

_id 21c8
authors Bargiela, Beatriz and Bausset, Raúl Abad
year 1999
title Sistemas multimediales aplicados a la arquitectura y su conocimiento (Multimedia Systems Applied to Architecture and its Knowledge Base)
source III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 186-191
summary This text makes a careful description of a great part of the components of the vocabulary of architecture and their syntax. It's structured in two parts, one textual and the other graphic. Due to the acknowledged contribution of the author on the subject of description of vocabulary of the elements of architecture and the research and development works that are entered upon in the master in computer graphics in the informatic field, it was proposed the development of an interactive system that allowed by means of links to connect the different parts of text and their respective graphics. Having as a basis the idiomatic equivalent term in Spanish and English, carried out in another research work, it was considered the possibility to link the text in these two languages besides the original one, french. That's why we've decided to propose the navigation through numeric text and images. This navigation has been already inferred from the reading of the text as intended from the author's that was why our task has been the interpretation of this intention and its translation in an informatic system. The product presented in this work is limited to having designed a methodology and showing its performance with some terms and images, able to make evident the sketch of our idea. The work is made out of the description of the following phases: 1.) Design of its interface; 2.) Compilation and classification of images compilation and classification of text; 3.) Coordination of textual and graphic elements; 4.) Programming of events in the interactive system.
series SIGRADI
email
last changed 2016/03/10 09:47

_id ga9919
id ga9919
authors Strehlke, Kai
year 1999
title xWORLDS, the implementation of a three-dimensional collaborative sketch tool within the context of a third year design course
source International Conference on Generative Art
summary This work is the result of a postgraduate thesis done at the chair for Architecture and CAAD at the ETH in Zurich Switzerland. It proposes a prototype for a three-dimensional modelling tool in a networked environment. The work is composed of two distinct parts. (1) A modeling tool to create three-dimensional objects in an intuitive and interactive manner. (2) A database component to store and retrieve the objects. This modeller has been implemented for the first time in a design course, where students where using the modeller to sketch and interact within a large group to formulate aspects of their design. The Paper focuses on the modeller and on the experience from a one week workshop.1. Modelling Tool. The modeling tool operates in two different modes: (A). Composing cubic forms within a limited cubic space. (B). Deforming the composition of boxes by means of their interaction with a separate volume. For the composition of cubes, the user has to drag a cube with the mouse to continue placing cubes in space. Furthermore, he can move and delete the placed cubes. Simple and complex objects can be created this way, in an easy and intuitive manner. For the second mode, the forms are generated by intersecting a volume with an object created previously in the first mode. The volume can be scaled and moved. The part of the existing object located outside the volume remains unchanged, while the part that lies inside it is transformed in the same way as the volume. Complex forms can be created in this way with simple transformations. 2. Database Storage and Retrieval.The created objects can be stored in a database. Other users can access the objects stored in the database and continue working on them in the same modeling environment. There are two ways to interact with objects from the database. On one side it is possible to substitute the composition of cubes, and keep the distorted framestructure of the currently active object unchanged. On the other side it is possible to initiate a morphing process between the currently active framestructure and the framestructure of an object from the database. This process can be stopped at any time. It is always possible to switch back in the modeling modus and continue work on the object.3. Workshop at the the School of Design at the Hong Kong Polytechnic University.A Group of over 100 students were using the tool in a second year design course. The tool has been implemented as part of a workshop in the second half of the design studio. The workshop lasted for one week in which a collective dataset of over 1000 models has been created by the students. Afterwards, a possibility was given to the students to retrieve models from the database and to process them in different software packages or have them physically built by a 3D printer, and then continue working on the physical model.
series other
more http://www.generativeart.com/
last changed 2003/08/07 17:25

_id c232
authors Trinder, Michael
year 1999
title The Computer's Role in Sketch Design: A Transparent Sketching Medium
source Proceedings of the Eighth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-8536-5] Atlanta, 7-8 June 1999, pp. 227-244
summary Starting from an analysis of the current unsuitability of computers for sketching, three key requirements are identified, in particular the notion that re-drawing or over-drawing are more important than editing and tweaking. These requirements are encapsulated in the broad concept of Transparency, understood both literally and metaphorically. Two experiments in implementing aspects of Transparency are described. One subverts the Macintosh window manager to provide windows with variable transparency, so that tracing between applications becomes a practical possibility. The other implements a graphical interface that requires no on-screen palettes or sliders to control it, allowing uninterrupted concentration on the design in hand. User tests show that the tool can be learnt quickly, is engaging to use, and most importantly, has character.
keywords Sketching, Sketch Design, User-Interface, Transparency, Immersion, Computer Aided Design
series CAAD Futures
last changed 2006/11/07 07:22

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