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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	cf2011_p115
id	cf2011_p115
authors	Pohl, Ingrid; Hirschberg Urs
year	2011
title	Sensitive Voxel - A reactive tangible surface
source	Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 525-538.
summary	Haptic and tactile sensations, the active or passive exploration of our built surroundings through our sense of touch, give us a direct feeling and detailed information of space, a sense of architecture (Pallasmaa 2005). This paper presents the prototype of a reactive surface system, which focuses its output on the sense of touch. It explains how touch sensations influence the perception of architecture and discusses potential applications that might arise from such systems in the future. A growing number of projects demonstrate the strong impact of interaction design on the human senses and perception. They offer new ways of sensing and experiencing architectural space. But the majority of these interaction concepts focus on visual and auditory output-effects. The sense of touch is typically used as an input generator, but neglected as as a potential receiver of stimuli. With all the possibilities of sensors and micro-devices available nowadays, there is no longer a technical reason for this. It is possible to explore a much wider range of sense responding projects, to broaden the horizon of sensitive interaction concepts (Bullivant 2006). What if the surfaces of our surroundings can actively change the way it feels to touch them? What if things like walls and furniture get the ability to interactively respond to our touch? What new dimensions of communication and esthetic experience will open up when we conceive of tangibility in this bi-directional way? This paper presents a prototype system aimed at exploring these very questions. The prototype consists of a grid of tangible embedded cells, each one combining three kinds of actuators to produce divergent touch stimuli. All cells can be individually controlled from an interactive computer program. By providing a layering of different combinations and impulse intensities, the grid structure enables altering patterns of actuation. Thus it can be employed to explore a sort of individual touch aesthetic, for which - in order to differentiate it from established types of aesthetic experiences - we have created the term 'Euhaptics' (from the Greek ŒµœÖ = good and Œ¨œÄœÑœâ = touch, finger). The possibility to mix a wide range of actuators leads to blending options of touch stimuli. The sense of touch has an expanded perception- spectrum, which can be exploited by this technically embedded superposition. The juxtaposed arrangement of identical multilayered cell-units offers blending and pattern effects of different touch-stimuli. It reveals an augmented form of interaction with surfaces and interactive material structures. The combination of impulses does not need to be fixed a priori; it can be adjusted during the process of use. Thus the sensation of touch can be made personally unique in its qualities. The application on architectural shapes and surfaces allows the user to feel the sensations in a holistic manner ‚Äì potentially on the entire body. Hence the various dimensions of touch phenomena on the skin can be explored through empirical investigations by the prototype construction. The prototype system presented in the paper is limited in size and resolution, but its functionality suggests various directions of further development. In architectural applications, this new form of overlay may lead to create augmented environments that let inhabitants experience multimodal touch sensations. By interactively controlling the sensual patterns, such environments could get a unique ‚Äútouch‚Äù for every person that inhabit them. But there may be further applications that go beyond the interactive configuration of comfort, possibly opening up new forms of communication for handicapped people or applications in medical and therapeutic fields (Grunwald 2001). The well-known influence of touch- sensations on human psychological processes and moreover their bodily implications suggest that there is a wide scope of beneficial utilisations yet to be investigated.
keywords	Sensitive Voxel- A reactive tangible surface
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	avocaad_2001_05
id	avocaad_2001_05
authors	Alexander Koutamanis
year	2001
title	Analysis and the descriptive approach
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	The rise of consciousness concerning the quality of working and living conditions has been a permanent though frequently underplayed theme in architecture and building since the reconstruction period. It has led to an explosive growth of programmatic requirements on building behaviour and performance, thus also stimulating the development of design analysis. The first stage of development was characterized by the evolution of prescriptive systems. These reversed the structure of pre-existing proscriptive systems into sequences of known steps that should be taken in order to achieve adequate results. Prescriptive systems complemented rather than replaced proscriptive ones, thereby creating an uncertain mixture of orthodoxy and orthopraxy that failed to provide design guidance for improving design performance and quality.The second stage in the development of design analysis focuses on descriptive methods and techniques for analyzing and supporting evaluation. Technologies such as simulation and scientific visualization are employed so as to produce detailed, accurate and reliable projections of building behaviour and performance. These projections can be correlated into a comprehensive and coherent description of a building using representations of form as information carriers. In these representations feedback and interaction assume a visual character that fits both design attitudes and lay perception of the built environment, but on the basis of a quantitative background that justifies, verifies and refines design actions. Descriptive analysis is currently the most promising direction for confronting and resolving design complexity. It provides the designer with useful insights into the causes and effects of various design problems but frequently comes short of providing clear design guidance for two main reasons: (1) it adds substantial amounts of information to the already unmanageable loads the designer must handle, and (2) it may provide incoherent cues for the further development of a design. Consequently the descriptive approach to analysis is always in danger of been supplanted by abstract decision making.One way of providing the desired design guidance is to complement the connection of descriptive analyses to representations of form (and from there to synthesis) with two interface components. The first is a memory component, implemented as case-bases of precedent designs. These designs encapsulate integrated design information that can be matched to the design in hand in terms of form, function and performance. Comparison between precedents with a known performance and a new design facilitate identification of design aspects that need be improved, as well as of wider formal and functional consequences. The second component is an adaptive generative system capable of guiding exploration of these aspects, both in the precedents and the new design. The aim of this system is to provide feedback from analysis to synthesis. By exploring the scope of the analysis and the applicability of the conclusions to more designs, the designer generates a coherent and consistent collection of partial solutions that explore a relevant solution space. Development of the first component, the design case-bases, is no trivial task. Transformability in the representation of cases and flexible classification in a database are critical to the identification and treatment of a design aspect. Nevertheless, the state of the art in case-based reasoning and the extensive corpus of analysed designs provide the essential building blocks. The second component, the adaptive generative system, poses more questions. Existing generative techniques do not possess the necessary richness or multidimensionality. Moreover, it is imperative that the designer plays a more active role in the control of the process than merely tweaking local variables. At the same time, the system should prevent that redesigning degenerates into a blind trial-and-error enumeration of possibilities. Guided empirical design research arguably provides the means for the evolutionary development of the second component.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	6a37
authors	Fowler, Thomas and Muller, Brook
year	2002
title	Physical and Digital Media Strategies For Exploring ‘Imagined’ Realities of Space, Skin and Light
source	Thresholds - Design, Research, Education and Practice, in the Space Between the Physical and the Virtual [Proceedings of the 2002 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-11-X] Pomona (California) 24-27 October 2002, pp. 13-23
doi	https://doi.org/10.52842/conf.acadia.2002.013
summary	This paper will discuss an unconventional methodology for using physical and digital media strategies ina tightly structured framework for the integration of Environmental Control Systems (ECS) principles intoa third year design studio. An interchangeable use of digital media and physical material enabledarchitectural explorations of rich tactile and luminous engagement.The principles that provide the foundation for integrative strategies between a design studio and buildingtechnology course spring from the Bauhaus tradition where a systematic approach to craftsmanship andvisual perception is emphasized. Focusing particularly on color, light, texture and materials, Josef Albersexplored the assemblage of found objects, transforming these materials into unexpected dynamiccompositions. Moholy-Nagy developed a technique called the photogram or camera-less photograph torecord the temporal movements of light. Wassily Kandinsky developed a method of analytical drawingthat breaks a still life composition into diagrammatic forces to express tension and geometry. Theseschematic diagrams provide a method for students to examine and analyze the implications of elementplacements in space (Bermudez, Neiman 1997). Gyorgy Kepes's Language of Vision provides a primerfor learning basic design principles. Kepes argued that the perception of a visual image needs aprocess of organization. According to Kepes, the experience of an image is "a creative act ofintegration". All of these principles provide the framework for the studio investigation.The quarter started with a series of intense short workshops that used an interchangeable use of digitaland physical media to focus on ECS topics such as day lighting, electric lighting, and skin vocabulary tolead students to consider these components as part of their form-making inspiration.In integrating ECS components with the design studio, an nine-step methodology was established toprovide students with a compelling and tangible framework for design:Examples of student work will be presented for the two times this course was offered (2001/02) to showhow exercises were linked to allow for a clear design progression.
series	ACADIA
email
last changed	2022/06/07 07:51

_id	4e8c
authors	Chien, Sheng-Fen and Flemming, Ulrich
year	2001
title	Design space navigation in generative design systems
source	Automation in Construction 11 (1) (2002) pp. 1-22
summary	Generative design systems make it easier for designers to generate and explore design alternatives, but the amount of information generated during a design session can become very large. Intelligent navigation aids are needed if designers wish to access the information they generate with ease. We present a comprehensive approach to support information navigation in requirement-driven generative design systems, which gain their power form explicit representations of design requirements, which in turn add to the information generated by the system. Our approach takes into account studies dealing with human spatial cognition, wayfinding in physical environments, and information navigation in electronic media. We structure the information to be accessed in terms of a five-dimensional design space model that applies across generative design systems of the type considered here. The model structure supports basic generic navigation operations along its five dimensions. We validated the model in the context of the SEED-Layout system and used it to extend the built-in navigation tools of the system through novel ones, which we subjected to a limited usability study. The study suggests that these tools have promise and warrant further investigation.
series	journal paper
email
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	3386
authors	Gavin, L., Keuppers, S., Mottram, C. and Penn, A.
year	2001
title	Awareness Space in Distributed Social Networks
source	Proceedings of the Ninth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-7023-6] Eindhoven, 8-11 July 2001, pp. 615-628
summary	In the real work environment we are constantly aware of the presence and activity of others. We know when people are away from their desks, whether they are doing concentrated work, or whether they are available for interaction. We use this peripheral awareness of others to guide our interactions and social behaviour. However, when teams of workers are spatially separated we lose 'awareness' information and this severely inhibits interaction and information flow. The Theatre of Work (TOWER) aims to develop a virtual space to help create a sense of social awareness and presence to support distributed working. Presence, status and activity of other people are made visible in the theatre of work and allow one to build peripheral awareness of the current activity patterns of those who we do not share space with in reality. TOWER is developing a construction set to augment the workplace with synchronous as well as asynchronous awareness. Current, synchronous activity patterns and statuses are played out in a 3D virtual space through the use of symbolic acting. The environment itself however is automatically constructed on the basis of the organisation's information resources and is in effect an information space. Location of the symbolic actor in the environment can therefore represent the focus of that person's current activity. The environment itself evolves to reflect historic patterns of information use and exchange, and becomes an asynchronous representation of the past history of the organisation. A module that records specific episodes from the synchronous event cycle as a Docudrama forms an asynchronous information resource to give a history of team work and decision taking. The TOWER environment is displayed using a number of screen based and ambient display devices. Current status and activity events are supplied to the system using a range of sensors both in the real environment and in the information systems. The methodology has been established as a two-stage process. The 3D spatial environment will be automatically constructed or generated from some aspect of the pre-existing organisational structure or its information resources or usage patterns. The methodology must be extended to provide means for that structure to grow and evolve in the light of patterns of actual user behaviour in the TOWER space. We have developed a generative algorithm that uses a cell aggregation process to transcribe the information space into a 3d space. In stage 2 that space was analysed using space syntax methods (Hillier & Hanson, 1984; Hillier 1996) to allow the properties of permeability and intelligibility to be measured, and then these fed back into the generative algorithm. Finally, these same measures have been used to evaluate the spatialised behaviour that users of the TOWER space show, and will used to feed this back into the evolution of the space. The stage of transcription from information structure to 3d space through a generative algorithm is critical since it is this stage that allows neighbourhood relations to be created that are not present in the original information structure. It is these relations that could be expected to help increase social density.
keywords	Algorithmic Form Generation, Distributed Workgroups, Space Syntax
series	CAAD Futures
email
last changed	2006/11/07 07:22

_id	9ab2
authors	Yun, Yong Gib
year	2001
title	Structural Composite Members in Architecture Fabricated by CAD/CAE/CAM Technology
source	Harvard University
summary	The doctoral research in this dissertation is aimed at exploring new materials and innovative methods for fabricating complex-shaped buildings, which have surfaced as a prevailing trend in architecture today. Over the past few years, the field of architecture has witnessed revolutionary changes in design. The recent completion of Frank O. Gehry's new Guggenheim Museum in Bilbao, Spain, brought unprecedented attention to complex-shaped, non-conventional designs and its influence on the global architectural trend has been immense. In following these latest trends, the author was drawn to the issues concerning construction materials and methods that are being currently adopted in realizing these complicated designs. It is perhaps inevitable that the traditional steel construction methods, suitable for use in the conventional linear shapes, face tremendous challenges and limitations in building such complex-shaped designs. In the author's opinion, the next step to go from here is to seek joint efforts between the architectural field and the engineering field to search for a new methodology which will best serve the contemporary design style. This research first focused on examining the problems that traditional methods pose for the new complex-shaped buildings. Paying attention to Gehry's recent projects, the author was able to identify major difficulties in association with representing and constructing these complicated shapes, mainly in terms of the relationship between the primary structure and the envelope surface. The second part of the research moved on to proposing a new alternative to the traditional methods, by utilizing polymer composite materials (PCM) as construction material and employing advanced Computer-Aided Design (CAD)/Computer Aided Engineering (CAE)/Computer-Aided Manufacturing (CAM) technologies. More specifically, the author has attempted to present effective theories in support of the two following ideas: (1) circular tubes made of PCM are the most promising alternative to regular steel members, especially steel tubes, to follow the envelope surface of the complex shaped building. (2) state-of-the-art CAD/CAE/CAM technologies are the most essential tools to achieve the geometrical and functional quality of the proposed new material. In the second phase, the primary focus of the quantitative approach was on fabricating an experimental model (1:1 scale prototype) called “ a unit of boundary structures”, the basic unit of structure system that wraps a complex-shaped building's entire territory . (Abstract shortened by UMI.)
series	thesis:PhD
last changed	2003/02/12 22:37

_id	avocaad_2001_18
id	avocaad_2001_18
authors	Aleksander Asanowicz
year	2001
title	The End of Methodology - Towards New Integration
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	The present paper is devoted to the deliberation on the genesis and development of designing from the point of view of the potential use of computers in the process. Moreover, it also presents the great hopes which were connected with the use of the systematic designing methods in the 1960’s, as well as the great disappointment resulting from the lack of concrete results. At this time a great deal of attention was paid to the process of design as a branch of a wider process of problem-solving. Many people believed that the intuitive methods of design traditionally used by architects were incapable of dealing with the complexity of the problems to be solved. Therefore, the basic problem was the definition of a vertical structure of the designing process, which would make it possible to optimise each process of architectural design. The studies of design methodology directed at the codification of the norms of actions have not brought about any solutions which could be commonly accepted, as the efforts to present the designing process as a formally logical one and one that is not internally “uncontrary” from the mathematical point of view, were doomed to fail. Moreover, the difficulties connected with the use of the computer in designing were caused by the lack of a graphic interface, which is so very characteristic of an architect’s workshop. In result, the methodology ceased to be the main area of the architect’s interest and efforts were focused on facilitating the method of the designer’s communication with the computer. New tools were created, which enabled both the automatic generation of diversity and the creation of forms on the basis of genetic algorithms, as well as the presentation of the obtained results in the form of rendering, animation and VRML. This was the end of the general methodology of designing and the beginning of a number of methods solving the partial problems of computer-supported design. The present situation can be described with the words of Ian Stewart as a “chaotic run in all directions”. An immediate need for new integration is felt. Cyber-real space could be a solution to the problem. C-R-S is not a virtual reality understood as an unreal world. Whilst VR could be indeed treated as a sort of an illusion, C-R-S is a much more realistic being, defining the area in which the creative activities are taking place. The architect gains the possibility of having a direct contact with the form he or she is creating. Direct design enables one to creatively use the computer technology in the designing process. The intelligent system of recognising speech, integrated with the system of virtual reality, will allow to create an environment for the designer – computer communication which will be most natural to the person. The elimination of this obstacle will facilitate the integration of the new methods into one designing environment. The theoretical assumptions of such an environment are described in the present paper.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	avocaad_2001_13
id	avocaad_2001_13
authors	Alexander Koutamanis
year	2001
title	Modeling irregular and complex forms
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	Computational technologies provide arguably the first real opportunity architectural design has had for a comprehensive description of built form. With the advent of affordable computer-aided design systems (including drafting, modeling, visualization and simulation tools), architects believe they can be in full control of geometric aspects and, through these, of a wide spectrum of other aspects that are implicit or explicit in the geometric representation. This belief is based primarily on the efficiency and effectiveness of computer systems, ranging from the richness and adaptability of geometric primitives to the utility of geometric representations in simulations of climatic aspects. Such capabilities support attempts to design and construct more irregular or otherwise complex forms. These fall under two main categories: (1) parsing of irregularity into elementary components, and (2) correlation of the form of a building with complex geometric structures.The first category takes advantage of the compactness and flexibility of computational representations in order to analyse the form of a design into basic elements, usually elementary geometric primitives. These are either arranged into simple, unconstrained configurations or related to each other by relationships that define e.g. parametric relative positioning or Boolean combinations. In both cases the result is a reduction of local complexity and an increase of implicit or explicit relationships, including the possibility of hierarchical structures.The second category attempts to correlate built form with constraints that derive usually from construction but can also be morphological. The correlation determines the applicability of complex geometric structures (minimally ruled surfaces) to the description of a design. The product of this application is generally variable in quality, depending upon the designer's grounding in geometry and his ability to integrate constraints from different aspects in the definition of the design's geometry.Both categories represent a potential leap forward but are also equally hampered by the rigidity of the implementation mechanisms upon which they rely heavily. The paper proposes an approach to making these mechanisms subordinate to the cognitive and technical aspects of architectural thinking through fuzzy modeling. This way of modeling involves a combination of (a) canonical forms, (b) tolerances around canonical forms and positions, (c) minimal and maximal values, (d) fuzzy boundaries, and (e) plastic interaction between elements based on the dual principles of local intelligence and autonomy. Fuzzy models come therefore closer to the intuitive manners of sketching, while facilitating transition to precise and complex forms. The paper presents two applications of fuzzy modeling. The first concerns the generation of schematic building layouts, including adaptive control of programmatic requirements. The second is a system for designing stairs that can adapt themselves to changes in their immediate environment through a fuzzy definition of geometric and topological parametrization.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	avocaad_2001_10
id	avocaad_2001_10
authors	Bige Tunçer, Rudi Stouffs, Sevil Sariyildiz
year	2001
title	Facilitating the complexity of architectural analyses
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	It is common practice for architecture students to collect documents on prominent buildings relevant to their design task in the early stage of design. While practitioners can rely on a body of design experience of their own, during the process of a new design, students can only draw from the examples of success and failure from other architects. In the past, such precedent based learning was implicit in the master-apprentice relationship common in the educational system. Nowadays academics commonly no longer have the possibility to maintain an extensive design practice, and instead introduce important outside precedents to the students. Thus, the study of important historical precedents or designs plays an important role in design instruction and in the students’ design processes. While there is no doubt that the most effective outcome of such a study would be achieved when the student does entire the study herself, students also benefit from a collaboration with peers, where they form groups to do an analysis of various aspects of a same building or over a group of buildings. By integrating the respective results into a common, extensible, library, students can draw upon other results for comparisons and relationships between different aspects or buildings. The complexity this introduces is best supported in a computer medium.The Web offers many examples of architectural analyses on a wide variety of subjects. Commonly, these analyses consist of a collection of documents, categorized and hyperlinked to support navigation through the information space. More sophisticated examples rely on a database for storage and management of the data, and offer a more complex categorization of the information entities and their relationships. These studies present effective ways of accessing and browsing information, however, it is precluded within these analyses to distinguish and relate different components within the project documents. If enabled, instead, this would offer a richer information structure presenting new ways of accessing, viewing, and interpreting this information. Hereto, documents can be decomposed by content. This implies both expanding the document structure, replacing document entities by detailed substructures, and augmenting the structure’s relatedness with content information. The relationships between the resulting components make the documents inherently related by content.We propose a methodology to integrate project documents into a single model, and present an application for the presentation of architectural analyses in an educational setting. This approach provides the students with a simple interface and mechanisms for the presentation of an analysis of design precedents, and possibly their own designs. Since all the information is integrated within a single environment, students will benefit from each others’ studies, and can draw new conclusions across analyses and presentations from their peers.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	9633
authors	Bridges, Alan and Charitos, Dimitrios
year	2001
title	The impact of form on movement within virtual environments
source	Automation in Construction 10 (5) (2001) pp. 589-596
summary	This paper reports some results from a research project investigating users' experience of space and movement in a virtual environment (VE).
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	avocaad_2001_02
id	avocaad_2001_02
authors	Cheng-Yuan Lin, Yu-Tung Liu
year	2001
title	A digital Procedure of Building Construction: A practical project
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	In earlier times in which computers have not yet been developed well, there has been some researches regarding representation using conventional media (Gombrich, 1960; Arnheim, 1970). For ancient architects, the design process was described abstractly by text (Hewitt, 1985; Cable, 1983); the process evolved from unselfconscious to conscious ways (Alexander, 1964). Till the appearance of 2D drawings, these drawings could only express abstract visual thinking and visually conceptualized vocabulary (Goldschmidt, 1999). Then with the massive use of physical models in the Renaissance, the form and space of architecture was given better precision (Millon, 1994). Researches continued their attempts to identify the nature of different design tools (Eastman and Fereshe, 1994). Simon (1981) figured out that human increasingly relies on other specialists, computational agents, and materials referred to augment their cognitive abilities. This discourse was verified by recent research on conception of design and the expression using digital technologies (McCullough, 1996; Perez-Gomez and Pelletier, 1997). While other design tools did not change as much as representation (Panofsky, 1991; Koch, 1997), the involvement of computers in conventional architecture design arouses a new design thinking of digital architecture (Liu, 1996; Krawczyk, 1997; Murray, 1997; Wertheim, 1999). The notion of the link between ideas and media is emphasized throughout various fields, such as architectural education (Radford, 2000), Internet, and restoration of historical architecture (Potier et al., 2000). Information technology is also an important tool for civil engineering projects (Choi and Ibbs, 1989). Compared with conventional design media, computers avoid some errors in the process (Zaera, 1997). However, most of the application of computers to construction is restricted to simulations in building process (Halpin, 1990). It is worth studying how to employ computer technology meaningfully to bring significant changes to concept stage during the process of building construction (Madazo, 2000; Dave, 2000) and communication (Haymaker, 2000).In architectural design, concept design was achieved through drawings and models (Mitchell, 1997), while the working drawings and even shop drawings were brewed and communicated through drawings only. However, the most effective method of shaping building elements is to build models by computer (Madrazo, 1999). With the trend of 3D visualization (Johnson and Clayton, 1998) and the difference of designing between the physical environment and virtual environment (Maher et al. 2000), we intend to study the possibilities of using digital models, in addition to drawings, as a critical media in the conceptual stage of building construction process in the near future (just as the critical role that physical models played in early design process in the Renaissance). This research is combined with two practical building projects, following the progress of construction by using digital models and animations to simulate the structural layouts of the projects. We also tried to solve the complicated and even conflicting problems in the detail and piping design process through an easily accessible and precise interface. An attempt was made to delineate the hierarchy of the elements in a single structural and constructional system, and the corresponding relations among the systems. Since building construction is often complicated and even conflicting, precision needed to complete the projects can not be based merely on 2D drawings with some imagination. The purpose of this paper is to describe all the related elements according to precision and correctness, to discuss every possibility of different thinking in design of electric-mechanical engineering, to receive feedback from the construction projects in the real world, and to compare the digital models with conventional drawings.Through the application of this research, the subtle relations between the conventional drawings and digital models can be used in the area of building construction. Moreover, a theoretical model and standard process is proposed by using conventional drawings, digital models and physical buildings. By introducing the intervention of digital media in design process of working drawings and shop drawings, there is an opportune chance to use the digital media as a prominent design tool. This study extends the use of digital model and animation from design process to construction process. However, the entire construction process involves various details and exceptions, which are not discussed in this paper. These limitations should be explored in future studies.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	6d37
authors	Léglise, Michel
year	2001
title	Computer-stimulated design: construction of a personal repertoire from scattered fragments
source	Automation in Construction 10 (5) (2001) pp. 577-588
summary	This paper describes some possibilities of creating and structuring a personal digital memory capable of facilitating architectural design and design learning. The raw materials of this memory are different representations that can be found on the Web. Having interpreted these representations, one is able to construct a meaningful memory, educated and personal, which can be called upon subsequently during the design phase, as long as one has a medium that can represent this memory and put it to good use. As a practical, effective application of this process, we will describe part of a configuration geared towards the learning of architectural design. This configuration is composed of various elements, precisely arranged in space and time in a set of interrelations and interactions. The design student is placed at the centre of the arrangement, from where he or she can call on a broad spectrum of possibilities from the Web as provider of image documents. When necessary, students can use specially developed software that allows them a verbal and pictorial interpretation stimulated during particular phases of the learning process. In this way, through pictorial material presented on the network, the students can build up a digital library appropriate to their own understanding of architecture and their own representation of the world. At this point, they can abandon the universe of digital documents and media and return to the world of materials and shapes in intensive design studio sessions, where slowly maturing ideas can at last find concrete form. Thus, we deal with the relationship between the public, shareable aspect of the documents, and the private aspect: the individual interpretation of these documents. In the same way, we show how, within the framework of the teaching programme that has been set up, and without interference, this relationship between public and private can be linked into a dimension of the work of learning which is at times personal, at times collective. The conclusion attempts to outline the issues raised by this sort of configuration, and to show how thoughtful use of computers and networks can stimulate and enrich design rather than just "aid" it, as is generally accepted.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	0865
authors	Mishima, Yoshitaka and Szalapaj, Peter John
year	2001
title	Architectural Design Development through Multimedia Interaction
source	Proceedings of the Ninth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-7023-6] Eindhoven, 8-11 July 2001, pp. 299-314
summary	This paper describes the development of a multimedia system aimed at architects and architectural students for the purpose of helping them to understand the basic concepts of architectural analysis. Analytical features in the system that we have developed include many design-theoretic concepts such as massing, balance and circulation. Other concepts are more directly related to the built environment and include elements such as lighting, structure and construction. The system illustrates architectural analysis carried out on a range of building types dynamically, and allows users to navigate architectural analyses interactively. Users can learn about the differences between buildings and their corresponding analyses in a supportive non-linear learning process, and can explore building types depending upon their own interests or needs. The prototype system contains analyses of three British building projects. They show different types of architecture in order to demonstrate important design theoretic and environmental differences. Conceptual models in the system show important aspects of a particular analysis simply, and each analysis is additionally described with text, animations, video clips and interviews with architects (talking heads). Most of the models were generated by the use of architectural CAD software. Animation techniques were used to describe the analyses of buildings clearly and dynamically. Users can visualise how whole buildings were designed from an analytical point of view, and the system illustrates design thinking by showing dynamic presentations of analyses. Users can structure their own design learning processes through a series of interactions. These interactions are supported with flexible cross-referencing mechanisms implemented in Macromedia Director 8.0 exploiting Frame Markers, Event Handling, Navigation, and Buttons in the context of the object-oriented Lingo programming language. The navigation component of this system has a logical matrix structure reflecting the fact that analytical information is interrelated across building types, giving rise to vertical and horizontal patterns of access. The features of Director 8.0 can control this navigation in a flexible yet structured way. Users not only learn about analysis, but also how to present their own designs to the public through the use of different kinds of presentation techniques, particularly through the use of conceptual models. We intend that users can show their projects from their own analytical viewpoints instead of simply showing realistic images of final designs. Presentations can also be recorded in the system, and these can in turn be used as reference material for other users. This system is currently being developed further by storing presentations and translating them into different languages (e.g. Japanese) so that foreign users in other institutions can interact with these presentations. This system has been evaluated in the context of an undergraduate CAD course at the School of Architecture, University of Sheffield, UK. We are currently examining the usefulness of the system based upon an evaluation process, in addition to including more building types for future study.
keywords	Analysis Of Form, Dynamic Interaction, Conceptual Models
series	CAAD Futures
email
last changed	2006/11/07 07:22

_id	4664
authors	Russell, Peter
year	2001
title	Visualising Non-Visual Building Information
source	Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 546-551
doi	https://doi.org/10.52842/conf.ecaade.2001.546
summary	Architecture can be understood as a process and as an object. In both forms, it consists of a complex of mass, monetary, energy and information flows that occur over time scales ranging from hours and days to centuries. The parts or elements making up buildings and the processes involved in producing, maintaining, using and disposing of them are highly intertwined and multi-dimensional. The field of Architecture can range from complete building stocks down to individual buildings, their elements, and the materials and processes making up these elements. What is more, it is also necessary to introduce time as a dimension in order to model the complete life cycle of buildings. Current CAD systems concentrate primarily on the replication of the traditional drawing process (sometimes in three dimensions) and the visualisation of the finished building. While these models describe the geometry and visual appearance of buildings, the bulk of the information about the building remains unseen. Recently developed systems such as the German LEGOE system have combined a materials database with specification and CAD systems, which allows for a more comprehensive description of the building. However, this additional information is displayed either rudimentarily or as lists of numbers. The information describing the position or visual quality of building elements is, in fact, minuscule in comparison to that describing the properties of the materials involved, their production methods, the energy needed to produce, transport and install the elements, and information concerning toxicology and environmental issues. What is more, these materials are not simply in situ, but can be considered to flow through the building. These flows also occur at widely varying rates according to the type of material and the type of building. The view is taken that buildings are actually temporary repositories of various “flows” which occupy the building during its lifetime. Thus seen, the various aspects of a building at a certain stage of its life are taken to be the total sum of its inputs and outputs at any given time. Currently, its complexity and the lack of cognitive assistance in its presentation limit the understanding of this information. The author postulates that to better understand this information, visual displays of this “non-visual” building information are needed, at least for those who, like architects, are more visually inclined. The paper describes attempts made to go beyond conventional two-dimensional charts, which have tended to only complicate understanding. This is partly due to the need to display a high number of dimensions in one space. Examples are shown of experimental visual displays using three-dimensional graphs created in VRML as well as a “remodelling” of the building based on statistical rather than spatial information to form a building “artefact”. The remodelled artefacts are based on a null-value three-dimensional form and are then modified according to the specific database information without changing their topology. These artefacts are initially somewhat idiosyncratic, but become more useful when a large enough population has been created. With sufficient numbers, it is possible to compare and classify the artefacts according to their visually discernible attributes. The classification of the artefacts is useful in understanding building types independent of their formal “architectural” or spatial qualities, particularly with age-use-classes. The paper also describes initial attempts to create building information landscapes that unfold from the artefacts allowing detailed views of the summarised information displayed by the individual artefacts.
keywords	Building Information, Visualisation, VRML, Life Cycle Analysis
series	eCAADe
email
last changed	2022/06/07 07:56

_id	461e
authors	Serrentino, R.H., Molina, H. and Cano, S.
year	2001
title	FORMAS TRIDIMENSIONALES INNOVADORAS: ARQUITECTURA BASADA EN LA TEORÍA DE NUDOS (Innovative Three-Dimensional Forms: Architecture Based on the Theory of Knots)
source	SIGraDi biobio2001 - [Proceedings of the 5th Iberoamerican Congress of Digital Graphics / ISBN 956-7813-12-4] Concepcion (Chile) 21-23 november 2001, pp. 89-91
summary	The theory of knots is a branch of mathematics that is in charge of studying the topological behaviour of lineal entities configuring forms in three-dimensional space. Starting from their spatial character it is possible to establish correspondences with three-dimensional forms of architectural use, constituting a stimulative tool of creativity. The objectives of this work consist on analysing how to enlarge the possibilities of computers aided architectural design (CAAD) from the theory of knots, classifying forms of knots of architectural use and developing a design procedure of architectural shapes, emphasizing concepts of structure, path and form.
series	SIGRADI
email
last changed	2016/03/10 10:00

_id	67f9
authors	Tversky, Barbara
year	2001
title	Multiple Mental Spaces
source	J. S. Gero, B. Tversky and T. Purcell (eds), 2001, Visual and Spatial Reasoning in Design, II - Key Centre of Design Computing and Cognition, University of Sydney, Australia
summary	Whenever we act, we act in space. Sometimes, the interactions are explicit,as we grasp the things around us or find our ways inside and out. Otherinteractions are implicit, an awareness of where we are, where the thingsaround us are. Still other spatial interactions are in imagination, when weestimate distances, or visualize how to arrange a room, or describe a journey.To act effectively in space, we rely on conceptions of space. We know aboutspace and the things in it from looking, from hearing, from touching, fromimagining, and from description. The knowledge obtained from thesedifferent sources is different; sometimes integrated and coherent, other times,not.The mental representations that we form of space from these real andimagined interactions differ from the external representations of spaces ofgeometry or of physics or of cartographic maps. For geometry, physics, andmaps, space is basic, metric, uniform, and unitary, and things are located in it.In human conceptions of space, the things in space are basic, and thequalitative spatial relations among them form a scaffolding. Which thingsand which spatial relations depend on the which space. We interact withmany spaces, the space of the body in eating or dancing, the space around thebody in basketball or soccer, the space of navigation in wayfinding orestimating distances. Each of these spaces is represented schematically, interms of the elements and spatial relations important to it.
series	other
email
more	http://www.arch.usyd.edu.au/kcdc/conferences/vr01/
last changed	2003/05/02 11:12

_id	f1c4
authors	Holmgren, S., Rüdiger, B. and Tournay, B.
year	2001
title	The 3D-City Model – A New Space
source	Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 430-435
doi	https://doi.org/10.52842/conf.ecaade.2001.430
summary	We have worked with the construction and use of 3D city models for about ten years. This work has given us valuable experience concerning model methodology. In addition to this collection of knowledge, our perception of the concept of city models has changed radically. In order to explain this shift in paradigms we begin by describing some of the concrete models we have made, showing the relationship between model structure (methodology and content) and model use. We also describe the projects we are working on at present in order to illustrate new ideas concerning the potential development of 3D city models.
keywords	Digital 3D City Model, Urban Regeneration, Participatory Design, On Line Community
series	eCAADe
email
last changed	2022/06/07 07:50

_id	34d2
authors	Rottensteiner, Franz
year	2001
title	Semi-automatic extraction of buildings based on hybrid adjustment using 3D surface models and management of building data in a TIS
source	Vienna University of Technology
summary	A new method for semi-automatic building extraction together with a concept for storing building models alongside with terrain data in a topographical information system (TIS) is presented. A user interface based on Constructive Solid Geometry is combined with an internal data structure completely based on boundary representation. Each building can be de-composed into a set of simple primitives which are reconstructed individually. After selecting a primitive from a data base of common building shapes, the primitive parameters can be modified by interactive measurement in digital images in order to provide approximate values for automatic fine measurement. In all phases, the properties of the boundary models are directly connected to parameter estimation: the parameters of the building primitives are determined in a hybrid adjustment of camera co-ordinates and fictitious observations of points being situated on building faces. Automatic fine measurement is an application of a general framework for object surface reconstruction using hierarchical feature based object space matching. The integration of object space into the matching process is achieved by the new modeling technique. The management of both building and terrain data in a TIS is based on a unique principle. Meta data are managed in a relational data base, whereas the actual data are treated as binary large objects. The new method is evaluated in a test project (image scale: 1:4500, 70 % overlap, 50 % side lap). The automatic tool gives results with an accuracy of +-2-5 cm in planimetric position and +-5-10 cm in height.
keywords	Building Extraction; Semi-automatic building extraction; Object modelling; 3D City models; Data acquisition; Spatial Information Systems; Image matching; Photogrammetry
series	thesis:PhD
email
more	http://www.ipf.tuwien.ac.at/fr/buildings/diss/node5.html
last changed	2003/02/12 22:37

_id	9d10
authors	Anders, Peter and Livingstone, Daniel
year	2001
title	STARS: Shared Transatlantic Augmented Reality System
source	Reinventing the Discourse - How Digital Tools Help Bridge and Transform Research, Education and Practice in Architecture [Proceedings of the Twenty First Annual Conference of the Association for Computer-Aided Design in Architecture / ISBN 1-880250-10-1] Buffalo (New York) 11-14 October 2001, pp. 350-355
doi	https://doi.org/10.52842/conf.acadia.2001.350
summary	Since October 2000 the authors have operated a laboratory, the Shared Transatlantic Augmented Reality System (STARS), for exploring telepresence in the domestic environment. The authors, an artist and an architect, are conducting a series of experiments to test their hypotheses concerning mixed reality and supportive environments. This paper describes these hypotheses, the purpose and construction of the lab, and preliminary results from the ongoing collaboration.
keywords	Mixed Reality, Cybrid, Art, Cyberspace, CAiiA-STAR
series	ACADIA
email
last changed	2022/06/07 07:54

_id	8a8c
authors	Choi, J.W., Kwon, D.-Y. and Lee, H.-S.
year	2001
title	DesignBUF: Exploring and Extending 2D Boolean Set Operations with Multiple Modes in the Early Design Phase
source	Proceedings of the Ninth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-7023-6] Eindhoven, 8-11 July 2001, pp. 589-602
summary	Boolean set operations have been a powerful design function set for any CAD systems including 2D and 3D domains. Their capacity to provide even more powerful design tools have not, however, been fully explored in the 2D system. The purpose of this study is to further explore 2D Boolean set operations with multiple modes, which include a pick mode, a wait mode, a drag-and-drop mode, and a draw-and-action mode. We develop a prototype design tool, called DesignBUF. It introduces a new concept of “design object buffer,” an intermediate design zone in which a designer freely sketches his/her design with design objects in a brainstorming fashion since valuable design ideas are ephemeral? and the designer needs to generate design schemes rapidly before the ideas disappear or are forgotten. After finishing such fast brainstorming processes, especially in the early design phase, the designer gets a stable and refined form of a floor plan, which in turn becomes a well structured form to maintain building and design information systematically. Therefore, the designer keeps switching back and forth between the “design object buffer” and structured floor plans. We believe that this dual working memory will not only increase system flexibility, but also reduce computation with unnecessarily complex design objects. This study also develops a robust algorithm to transform the intermediate design objects into a well-structured floor plan. In fact, the algorithm is also used for the extended Boolean set operations described above. A structured floor plan can also be transformed into non-structured forms. Research issues for future development are also identified at the end of the paper.
keywords	Design Buffer, Extended Boolean Set Operations, Structured Floor Plan.
series	CAAD Futures
email
last changed	2006/11/07 07:22

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