Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	b74f
authors	Dijkstra, Jan and Timmermans, Harry
year	2002
title	Towards a multi-agent model for visualizing simulated user behavior to support the assessment of design performance
source	Automation in Construction 11 (2) (2002) pp. 135-145
summary	We introduce the outline of a multi-agent model that can be used for visualizing simulated user behavior to support the assessment of design performance. We will consider various performance indicators of building environments, which are related to user reaction to design decisions. This system may serve as a media tool in the design process for a better understanding of what the design will look like, especially for those cases where design or planning decisions will affect the behavior of individuals. The system is based on cellular automata and multi-agent simulation technology. The system simulates how agents move around in a particular 3D (or 2D) environment, in which space is represented as a lattice of cells. Agents represent objects or people with their own behavior, moving over the network. Each agent will be located in a simulated space, based on the cellular automata grid. Each iteration of the simulation is based on a parallel update of the agents conforming local rules. Agents positioned within an environment will need sensors to perceive their local neighborhood and some means with which to affect the environment. In this way, autonomous individuals and the interaction between them can be simulated by the system. As a result, designers can use the system to assess the likely consequences of their design decisions on user behavior. We think that the system provides a potentially valuable tool to support design and decision-making processes, related to user behavior in architecture and urban planning.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	ddssup0215
id	ddssup0215
authors	Ruiz, M., Fornés, A., Ramon, J., Alorda, J. Goula, M. and Pié, R.
year	2002
title	GIS Tools for Landscape Impact Assessment
source	Timmermans, Harry (Ed.), Sixth Design and Decision Support Systems in Architecture and Urban Planning - Part two: Urban Planning Proceedings Avegoor, the Netherlands), 2002
summary	This paper present the main results obtained by the development of the Artemis Project ”Design and Evaluation of Residential Patterns in the Mediterranan Region appropiate to sustainable development of environmentally deteriorated rural areas” 4th European Framework Program. Call ENVIRONMENT AND CLIMATE . ENV4-CT97-0656.) As results of the project an Integrated Landscape Assessment Model (AIAM) was created. AIAM is a resource modelling system focusing on the generation of a decision support system application oriented to provide criteria in order to evaluate effects and to optimise location of low density residential settlements. The Model includes a Landscape multicriteria analysis merged with spatial analysis tools set in a GIS Environment. The A.I.A.M. provides data structures, user interface components, and output mechanism witch allows the user to apply the knowledge acquired for Artemis Project. One of the main goals of the A.I.A.M is to give a landscape view of the territory including variables that are usually not considered in planning and environmental impact assessment processes. Also the models gives a sustainable support both to planner and designers projects. A.I.A.M. gives the data structure to define a residential patterns, the parameters through which a pattern is adequately described. This pattern definition allows comparison between the one’s of the reference area and so, extract conclusions about divergence between them.
series	DDSS
last changed	2003/08/07 16:36

_id	02e3
authors	Hirschberg, Urs
year	2002
title	Transparency In Information Architecture Enabling large scale creative collaboration over Internet in architectural education
doi	https://doi.org/10.52842/conf.ecaade.2002.174
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 174-179
summary	This paper presents some results of a quantitative process analysis of two types of courses in Computer Aided Architectural Design that were taught using database-driven online environments. It focuses on the performance of these online environments as information structures, designed to accommodate the presentation and the peer-to-peer exchange of design information for relatively large groups of between 60 and 150 participants. Using the database records to reconstruct the processes, three different quantitative analyses are described. Their results indicate that for these projects the webenvironments were successful in enhancing peer-to-peer learning and that they promoted a more objective assessment of the submitted works. The study also looks at the effect that the environments themselves had on the process. Finally it makes some conclusions about how such environments must be designed to handle the dynamic display of design data in a way that is transparent to the users.
series	eCAADe
email
last changed	2022/06/07 07:50

_id	ddssar0223
id	ddssar0223
authors	Mahdavi, A, Suter G. and Ries, R.
year	2002
title	A Representation Scheme for Integrated Building Performance Analysis
source	Timmermans, Harry (Ed.), Sixth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings Avegoor, the Netherlands), 2002
summary	This paper presents a representational scheme for integrated building performance analysis. The underlying research work was motivated by the need for seamless exchange of structured design information.A comprehensive and widely accepted industry standard suitable for exchanging design information among the various AEC (Architecture/Engineering/Construction) applications has yet to emerge. As a contribution to this on-going discussion, we present a specific approach to the integration problem in building product modeling. This approach can be viewed as pragmatic or bottom-up in the sense that itwas driven by the informational needs of related individual domains (particularly in the early stages of design) rather than by a quest for a universally applicable solution. In this paper, we describe a schemawhich emerged from the SEMPER effort, a multi-year project aimed at supporting detailed performance analysis for early design in the energy, life-cycle analysis, lighting, and thermal comfort domains. Thisschema relies on a representational division of labor between a shared building model, and various disciplinary (domain) models. Specifically, we present a documentation of the shared object model together with disciplinary models for the energy, light, acoustics, and life-cyle assessment domain.
keywords	building product models, building performance, integration
series	DDSS
last changed	2003/08/07 16:36

_id	899b
authors	Alvarado, R.G., Abufarde, F.B., Moreno, P.R. and Bravo, M.P.
year	2002
title	Modelación de Actividades [Modeling of Activities]
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 151-154
summary	Despite increasing interest in the functionality and humanization of architecture, scarcely the occupation of buildings are studied and it lacks methods to represent activities in the spaces. By this reason, it proposes a system such integrates simulation of processes and virtual modeling software, to program the behavior of tri-dimensional characters based on the probabilistic evolution of events, testing this approach in the study of emergency services of hospitals. It describes the procedure developed and reflections about temporal representation, demonstrating that modeling of activities allows to suggest functional and spatial improvements.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	132eaea2001
id	132eaea2001
authors	Borg, Manuela and Walz, Manfred
year	2002
title	Orientation Strategies within Public Spaces as the Rudiments of Space Usage and Layout” – A Workshop Contribution
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	Our guiding questions in research are: - how does one orient oneself in an unknown urban space, - are there typical strategies in orientation, which become visible during the search process and finally:- do men and women orientate in the same unknown urban space in the same way or are there hints that they are following different strategies?Our long-term theme in research is to find out the regularity and the rules of the processes of moving and using public spaces. In the first step we are trying to find out in which way the individual perception of urban spaces in moving depends on the design of urban spaces. Therefore in our research design we try to explore the qualities of urban spaces which become visible in moving processes. It is one of the oldest questions of urban design and – by the way – nearly every architect or planner pretends to know everything on this subject. But nobody is yet able to predict real moving or using processes while designing. On the other side: the parameters of the material frame work are well known while moving and using processes are still nearly unknown.
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	cf_2003_000
id	cf_2003_000
authors	Chiu, M.-L., Tsou, J.-Y., Kvan, Th., Morozumi, M. and Jeng, T.-S. (Eds.)
year	2003
title	Digital Design - Research and Practice
source	Proceedings of the 10th International Conference on Computer Aided Architectural Design Futures / ISBN 1-4020-1210-1 / Tainan (Taiwan) 13–15 October 2003, 464 p.
summary	The use of computers in the design of the built environment has reached a watershed. From peripheral devices in the design process, they have in recent years come to take centre stage. An illustration is immediately at hand. Just as the entries to the competition for the Chicago Tribune Tower in 1922 defined the state-of-the-art at the beginning of the twentieth century, we have a similar marker at the end of the century, the competition in 2002 to replace the World Trade Centre towers in Lower Manhattan offered us a range of architectural solutions that exemplified the state-of-the-art eighty years later, setting forth not only architectural statements but also illustrating clearly the importance of computers in the design of the built environment. In these entries of 2002, we can see that computers have not only become essential to the communication of design but in the investigation and generation of structure, form and composition. The papers in this book are the current state-of-the-art in computer-aided design as it stands in 2003. It is the tenth in a series sponsored by the CAAD Futures Foundation, compiled from papers presented at the biennial CAAD Futures Conferences. As a series, the publications have charted the steady progress in developing the theoretical and practical foundations for applications in design practice. This volume continues in that tradition; thus, this book is entitled Digital Design: Research and Practice. The papers are grouped into three major categories, reflecting thrusts of research and practice, namely: Data and information: its organisation, handling and access, including agents; Virtual worlds: their creation, application and interfaces; and Analysis and creation of form and fabric. The editors received 121 abstracts after the initial call for contributions. From these, 61 abstracts were selected for development into complete papers for further review. From these submissions, 39 papers were chosen for inclusion in this publication. These papers show that the field has evolved from theoretical and development concerns to questions of practice in the decade during which this conference has showcased leading work. Questions of theoretical nature remain as the boundaries of our field expand. As design projects have grasped the potentials of computer-aided design, so have they challenged the capabilities of the tools. Papers here address questions in geometric representation and manipulation (Chiu and Chiu; Kocaturk, Veltkamp and Tuncer), topics that may have been considered to be solved. As design practice becomes increasingly knowledge based, better ways of managing, manipulating and accessing the complex wealth of design information becomes more pressing, demanding continuing research in issues such as modelling (Yang; Wang; Zreik et al), data retrieval and querying (Hwang and Choi; Stouffs and Cumming; Zreik, Stouffs, Tuncer, Ozsariyildiz and Beheshti), new modes of perceiving data (Segers; Tan). Tools are needed to manage, mine and create information for creative work, such as agents (Liew and Gero; Smith; Caneparo and Robiglio; Ding et al) or to support design processes (Smith; Chase). Systems for the support and development of designs continue (Gero; Achten and Jessurun). As progress is made on some fronts, such as user interfaces, attention is again turned to previously research areas such as lighting (Jung, Gross and Do; Ng et al; Wittkopf; Chevier; Glaser, Do and Tai) or services (Garcia; Chen and Lin). In recent years the growth of connectivity has led to a rapid growth in collaborative experience and understanding of the opportunities and issues continues to mature (Jabi; Dave; Zamenopoulos and Alexiou). Increasing interest is given to implications in practice and education (Dave; Oxman; Caneparo, Grassi and Giretti). Topics new to this conference are in the area of design to production or manufacture (Fischer, Burry and Frazer; Shih). Three additional invited papers (Rekimoto; Liu; Kalay) provide clear indication that there is still room to develop new spatial concepts and computer augmented environments for design. In conclusion, we note that these papers represent a good record of the current state of the evolving research in the field of digital design.
series	CAAD Futures
email
more	http://www.caadfutures.arch.tue.nl/
last changed	2003/09/22 12:21

_id	1a42
authors	Fjeld, M., Lauche, K., Bichsel, M., Voorhorst, F., Krueger, H., Rauterberg, M.
year	2002
title	Physical and Virtual Tools: Activity Theory Applied to the Design of Groupware
source	Computer Supported Cooperative Work (CSCW), Kluwer
summary	Activity theory is based on the concept of tools mediating between subjects and objects. In this theory, an individual's creative interaction with his or her surroundings can result in the production of tools. When an individual's mental processes are exteriorized in the form of tools - termed objectification - they become more accessible to other people and are therefore useful for social interaction. This paper shows how our understanding of activity theory has shaped our design philosophy for groupware and how we have applied it. Our design philosophy and practice is exemplified by a description of the BUILD-IT system. This is an Augmented Reality system we developed to enhance group work; it is a kind of graspable groupware which supports cooperative planning. The system allows a group of people, co-located around a table, to interact, by means of physical bricks, with models in a virtual three-dimensional (3D) setting. Guided by task analysis, a set of specific tools for different 3D planning and configuration tasks was implemented as part of this system. We investigate both physical and virtual tools. These tools allow users to adjust model height, viewpoint, and scale of the virtual setting. Finally, our design practice is summarized in a set of design guidelines. Based on these guidelines, we reflect on our own design practice and the usefulness of activity theory for design.
series	other
last changed	2003/04/23 15:50

_id	10eaea2001
id	10eaea2001
authors	Gorczyca, Adam and Wrona, Stefan
year	2002
title	Evaluation in 3D Endoscopic Simulation – Application in Architectural Studios
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	Simulation techniques are nowadays commonly spread in CAAD applications. They are so popular, that even notion of SAAD (Simulation Aided Architectural Design) is used. Practical implementation of simulation techniques is present almost everywhere in our lives. All of us had a possibility of watching on TV, how Russians are going to pick up their atomic submarine “Kursk” from a sea-bottom. It is very tragic but significant example. People convinced themselves, that it is much cheaper to analyze any “virtual environment”, than to experiment with reality. Especially, when cost this “tampering” is extremely expensive. That is why some light and scenography simulation are prepared by computers. From the same reasons filmic special effects are produced (sink of Titanic…). There are also obvious medical applications, where endoscopic surgery replaced invading methods, while simulation of human body help students to learn anatomy. Forensic medicine try to identify faces of murders or body remains.
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	sigradi2006_e028c
id	sigradi2006_e028c
authors	Griffith, Kenfield; Sass, Larry and Michaud, Dennis
year	2006
title	A strategy for complex-curved building design:Design structure with Bi-lateral contouring as integrally connected ribs
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 465-469
summary	Shapes in designs created by architects such as Gehry Partners (Shelden, 2002), Foster and Partners, and Kohn Peterson and Fox rely on computational processes for rationalizing complex geometry for building construction. Rationalization is the reduction of a complete geometric shape into discrete components. Unfortunately, for many architects the rationalization is limited reducing solid models to surfaces or data on spread sheets for contractors to follow. Rationalized models produced by the firms listed above do not offer strategies for construction or digital fabrication. For the physical production of CAD description an alternative to the rationalized description is needed. This paper examines the coupling of digital rationalization and digital fabrication with physical mockups (Rich, 1989). Our aim is to explore complex relationships found in early and mid stage design phases when digital fabrication is used to produce design outcomes. Results of our investigation will aid architects and engineers in addressing the complications found in the translation of design models embedded with precision to constructible geometries. We present an algorithmically based approach to design rationalization that supports physical production as well as surface production of desktop models. Our approach is an alternative to conventional rapid prototyping that builds objects by assembly of laterally sliced contours from a solid model. We explored an improved product description for rapid manufacture as bilateral contouring for structure and panelling for strength (Kolarevic, 2003). Infrastructure typically found within aerospace, automotive, and shipbuilding industries, bilateral contouring is an organized matrix of horizontal and vertical interlocking ribs evenly distributed along a surface. These structures are monocoque and semi-monocoque assemblies composed of structural ribs and skinning attached by rivets and adhesives. Alternative, bi-lateral contouring discussed is an interlocking matrix of plywood strips having integral joinery for assembly. Unlike traditional methods of building representations through malleable materials for creating tangible objects (Friedman, 2002), this approach constructs with the implication for building life-size solutions. Three algorithms are presented as examples of rationalized design production with physical results. The first algorithm [Figure 1] deconstructs an initial 2D curved form into ribbed slices to be assembled through integral connections constructed as part of the rib solution. The second algorithm [Figure 2] deconstructs curved forms of greater complexity. The algorithm walks along the surface extracting surface information along horizontal and vertical axes saving surface information resulting in a ribbed structure of slight double curvature. The final algorithm [Figure 3] is expressed as plug-in software for Rhino that deconstructs a design to components for assembly as rib structures. The plug-in also translates geometries to a flatten position for 2D fabrication. The software demonstrates the full scope of the research exploration. Studies published by Dodgson argued that innovation technology (IvT) (Dodgson, Gann, Salter, 2004) helped in solving projects like the Guggenheim in Bilbao, the leaning Tower of Pisa in Italy, and the Millennium Bridge in London. Similarly, the method discussed in this paper will aid in solving physical production problems with complex building forms. References Bentley, P.J. (Ed.). Evolutionary Design by Computers. Morgan Kaufman Publishers Inc. San Francisco, CA, 1-73 Celani, G, (2004) “From simple to complex: using AutoCAD to build generative design systems” in: L. Caldas and J. Duarte (org.) Implementations issues in generative design systems. First Intl. Conference on Design Computing and Cognition, July 2004 Dodgson M, Gann D.M., Salter A, (2004), “Impact of Innovation Technology on Engineering Problem Solving: Lessons from High Profile Public Projects,” Industrial Dynamics, Innovation and Development, 2004 Dristas, (2004) “Design Operators.” Thesis. Massachusetts Institute of Technology, Cambridge, MA, 2004 Friedman, M, (2002), Gehry Talks: Architecture + Practice, Universe Publishing, New York, NY, 2002 Kolarevic, B, (2003), Architecture in the Digital Age: Design and Manufacturing, Spon Press, London, UK, 2003 Opas J, Bochnick H, Tuomi J, (1994), “Manufacturability Analysis as a Part of CAD/CAM Integration”, Intelligent Systems in Design and Manufacturing, 261-292 Rudolph S, Alber R, (2002), “An Evolutionary Approach to the Inverse Problem in Rule-Based Design Representations”, Artificial Intelligence in Design ’02, 329-350 Rich M, (1989), Digital Mockup, American Institute of Aeronautics and Astronautics, Reston, VA, 1989 Schön, D., The Reflective Practitioner: How Professional Think in Action. Basic Books. 1983 Shelden, D, (2003), “Digital Surface Representation and the Constructability of Gehry’s Architecture.” Diss. Massachusetts Institute of Technology, Cambridge, MA, 2003 Smithers T, Conkie A, Doheny J, Logan B, Millington K, (1989), “Design as Intelligent Behaviour: An AI in Design Thesis Programme”, Artificial Intelligence in Design, 293-334 Smithers T, (2002), “Synthesis in Designing”, Artificial Intelligence in Design ’02, 3-24 Stiny, G, (1977), “Ice-ray: a note on the generation of Chinese lattice designs” Environmental and Planning B, volume 4, pp. 89-98
keywords	Digital fabrication; bilateral contouring; integral connection; complex-curve
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	2d03
authors	Head, J., Hoag, R. and Brooks, K.
year	2002
title	An Evaluation of Urban Simulation Processes for the Elumens Vision Dome
doi	https://doi.org/10.52842/conf.acadia.2002.055
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. 55-63
summary	This paper reports an evaluation of the potential use and value of three digital urban simulationstechniques presented on a hemispheric display system made by Elumens®. The utility of this system toengage students and decision-makers in a process of envisioning alternative futures for a communitycollege campus in a Midwestern U.S. city is discussed. Visualization of alternative environments is acritical part of planning and design. The ability of designers, planners and their students to use media toengage and communicate proposals is essential to effective participatory design processes.
series	ACADIA
email
last changed	2022/06/07 07:49

_id	79b4
authors	Kuenstle, Michael W.
year	2002
title	Flow Structure Environment Simulation - A Comparative Analysis of Wind Flow Phenomena and Building Structure Interaction
doi	https://doi.org/10.52842/conf.ecaade.2002.564
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 564-568
summary	This paper documents the progress of research to investigate the integration of computational modeling techniques into wind mitigation analysis and design for building structures located in high wind prone areas. Some of the basic mechanics and theoretical concepts of fluid flow and wind pressure as well as their translation into design criteria for structural analysis and design are reviewed, followed by a discussion of a detailed Computational Fluid Dynamics (CFD) application case study for a simulated “3-second gust” wind flow over a low rectangular building located in a coastal region. The case study project models the wind flow behavior and pressure distribution over the building structure when situated in three varying conditions within a single terrain exposure category. The simulations include three-dimensional modeling of the building type constructed (1) on-grade in a flat coastal area, (2) above grade with the building elevated on structural columns, and (3) on-grade downwind of an escarpment. The techniques and parameters for development of the simulations are discussed and some preliminary interpretations of the results are evaluated by comparing their predictions to existing experimental and analytical data.
series	eCAADe
email
last changed	2022/06/07 07:52

_id	120eaea2001
id	120eaea2001
authors	Martens, Bob
year	2002
title	Endoscopic Model-viewing of Students‘ Design Project: An Evaluation
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	Students at Vienna University of Technology can avail themselves (free of charge) of viewing their design projects by means of endoscope. While doing so basic knowledge on the endoscopic rendering technique is furnished, not only resulting in considerations regarding possibilities and limitations of endoscopic infrastructure, but also sounding out the conditions that prove suited already throughout the stage of model-building. Architectural-related endoscopy actually also aims at destruction-free model viewing. This contribution enumerates specific experience based on a user-inquiry regarding performed rendering situations throughout the last three years. Two diploma theses are dealt with in more detail in this context, i.e.: the re-design of the Railway Station Vienna-Praterstern and the new building of the Archeological Museum at Nicosia.
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	178eaea2001
id	178eaea2001
authors	Matalasov, M. and Zavrajine, K.
year	2002
title	Video-Computer Modelling of Perception in the Educational Architectural Designing
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	In the report on the base of the example of the past and present term and diploma designs, executed in MARCHI, and tarkng into account the intermediate results, reported by us at past conferences EAEA, we have tried to analyse and generalize problems, versions of the techniques and technologies of education.
series	EAEA
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	acadia16_140
id	acadia16_140
authors	Nejur, Andrei; Steinfeld, Kyle
year	2016
title	Ivy: Bringing a Weighted-Mesh Representations to Bear on Generative Architectural Design Applications
doi	https://doi.org/10.52842/conf.acadia.2016.140
source	ACADIA // 2016: POSTHUMAN FRONTIERS: Data, Designers, and Cognitive Machines [Proceedings of the 36th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-77095-5] Ann Arbor 27-29 October, 2016, pp. 140-151
summary	Mesh segmentation has become an important and well-researched topic in computational geometry in recent years (Agathos et al. 2008). As a result, a number of new approaches have been developed that have led to innovations in a diverse set of problems in computer graphics (CG) (Sharmir 2008). Specifically, a range of effective methods for the division of a mesh have recently been proposed, including by K-means (Shlafman et al. 2002), graph cuts (Golovinskiy and Funkhouser 2008; Katz and Tal 2003), hierarchical clustering (Garland et al. 2001; Gelfand and Guibas 2004; Golovinskiy and Funkhouser 2008), primitive fitting (Athene et al. 2004), random walks (Lai et al.), core extraction (Katz et al.) tubular multi-scale analysis (Mortara et al. 2004), spectral clustering (Liu and Zhang 2004), and critical point analysis (Lin et al. 20070, all of which depend upon a weighted graph representation, typically the dual of a given mesh (Sharmir 2008). While these approaches have been proven effective within the narrowly defined domains of application for which they have been developed (Chen 2009), they have not been brought to bear on wider classes of problems in fields outside of CG, specifically on problems relevant to generative architectural design. Given the widespread use of meshes and the utility of segmentation in GAD, by surveying the relevant and recently matured approaches to mesh segmentation in CG that share a common representation of the mesh dual, this paper identifies and takes steps to address a heretofore unrealized transfer of technology that would resolve a missed opportunity for both subject areas. Meshes are often employed by architectural designers for purposes that are distinct from and present a unique set of requirements in relation to similar applications that have enjoyed more focused study in computer science. This paper presents a survey of similar applications, including thin-sheet fabrication (Mitani and Suzuki 2004), rendering optimization (Garland et al. 2001), 3D mesh compression (Taubin et al. 1998), morphin (Shapira et al. 2008) and mesh simplification (Kalvin and Taylor 1996), and distinguish the requirements of these applications from those presented by GAD, including non-refinement in advance of the constraining of mesh geometry to planar-quad faces, and the ability to address a diversity of mesh features that may or may not be preserved. Following this survey of existing approaches and unmet needs, the authors assert that if a generalized framework for working with graph representations of meshes is developed, allowing for the interactive adjustment of edge weights, then the recent developments in mesh segmentation may be better brought to bear on GAD problems. This paper presents work toward the development of just such a framework, implemented as a plug-in for the visual programming environment Grasshopper.
keywords	tool-building, design simulation, fabrication, computation, megalith
series	ACADIA
type	paper
email
last changed	2022/06/07 07:58

_id	204eaea2001
id	204eaea2001
authors	Niemann, T., Schmidt, A. and Reiss, S.
year	2002
title	The Use of New Media Tools in Environmental Simulation
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	Urban design model simulations serve to let us envision the future environment. These models are important tools in planning processes and serve to democratize improve the comprehension of decision processes. Those affected and (often) laypeople help in the formulation of opinions. Not lastly, model simulations facilitate the evaluation of the quality of the future urban design spaces and allow for corrections in the optimization of designs. Model simulations can be created by the help of endoscopic techniques already well known to medicine. Nowadays, virtual simulations can, on the other hand, be entirely created on a computer through the use of suitable programs. At the present time a comparative investigation into the performance capabilities of analog and digital technologies is still pending. In a two-group comparative study, static analog and digital simulations were compared by using categorical scales to answer questions on urban design layout and living space quality. The results demonstrated that analog and digital simulations lead to similar value judgments. However, layout and living space quality in the analog simulations were given somewhat higher rankings, on average. A conclusive statement about the performance capabilities of analog or digital simulations in urban design processes is still premature. Future studies should take this context into consideration. Aside from the performance capabilities of a simulation, other aspects are also to be considered, such as the resource requirements for practical urban planning processes. At this time the use of analog simulations is often recommended. This is because the use of analog simulations brings similar results using fewer resources than digital simulations. To the observer, analog simulations retain a more natural quality. Now as before, models are often constructed during the performance of urban design projects, reducing even further the resource demands of an analog model, which in the end is reflected in the costs.
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	24eaea2001
id	24eaea2001
authors	Ohno, R., Katayama, M., Komatsuzaki, T. and Soeda, M.
year	2002
title	Development of a Visual Simulation System Synchronized with Walking Motion - An application for a study of distance perception
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	Conventional visual simulators allow observers to move in the simulated space by using a mouse or a joy-stick without the kinesthetic feeling of motion. However, the link between visual image and body motion is important to perceive the environment, especially when people are walking. In this paper, a visual simulation system was designed to synchronize the subject's walking motion on a treadmill with the video image shown on a HMD. In order to detect the walking motion, sensors were attached to both subject’s ankles. According to the detected motion, the treadmill rotates and a CCD camera moves in a model space. Because of the sensors’ low sensitivity and the time lag between the detected motion and treadmill rotation, the subjects couldn’t walk smoothly. Therefore, the walking speed which synchronizes with the video image was kept constant for each subject and the experimenter started up and stopped the simulator. The validity of this simulation system was examined by comparing the accuracy of distance estimation using the new simulator with that using the conventional system without walking motion. The “distance reproduction” method was applied to measure the perceived distance: subjects walked 25 meter in a real setting without being told the distance, and were asked to move the same distance in different conditions. Since the distance estimation became accurate in the condition with the walking motion, the validity of this simulator was secured. The following experiment was intended to investigate the influence of physical environmental features on perceived distance by using the simulation system. We operated some features using a scale model of a route and examined their influences. Subjects were asked to "walk" through a path consisted of two spaces with different physical features, and to respond by showing the proportion of the length of those two spaces. The result revealed that the distance of a narrower and lower ceiling path where people perceive clearer line perspective and faster optical flow tends to be perceived longer.
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	106eaea2001
id	106eaea2001
authors	Pflüger , Frank
year	2002
title	Computer-Aided Visualization Meaningful Support in the Context of Urban Design
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	Concepts and ideas take shape in the head. Human beings think by relying on visual forms, they connect ideas and thoughts with images. Especially when we are dealing with complex processes, visualizations have always helped to increase our understanding of contents, to facilitate communication and thus to support cooperation. Communication and planning are not possible without real or imagined pictures or, as we prefer to say, images.This easily explains why computer-aided visualizations today are among the standard instruments in the field of construction and planning.
series	EAEA
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	50eaea2001
id	50eaea2001
authors	Przybilla, Heinz-Jürgen
year	2002
title	A Process of Generating City Models by Means of Digital Photogrammetry
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	The paper gives an overview of procedures used to generate city models on the basis of photogrammtric techniques. The Phaust software system, developed by the laboratory of photogrammetry of University of Essen, together with a software company situated in Essen, is presented. Some actual examples, including video and internet presentation on the basis of virtual reality modelling language (VRML), are shown.
series	EAEA
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	946b
authors	Zhou, Q., Krawczyk, R.J. and Schipporeit, G.
year	2002
title	From CAD to IAD: A Working Model of the Internet-based Engineering Consulting in Architecture
doi	https://doi.org/10.52842/conf.caadria.2002.073
source	CAADRIA 2002 [Proceedings of the 7th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 983-2473-42-X] Cyberjaya (Malaysia) 18–20 April 2002, pp. 073-80
summary	Information technology has become so powerful that what is conventionally called CAD might evolve into iAD (Internet Aided Design) in the near future (Zhou 2000). For Internet applications in the AEC industry, most of the efforts and success have been concentrated on project management and collaboration, while in the design and engineering consulting area, limited progress has been made. During the period of Internet development, the nature of the fragmentation of the AEC industry has not been changed. Based on previous research of surveys of development of Internet applications in the AEC industry (Zhou 2001), and the study of information technology both available today and in the near future, we propose a general abstracted model of an Internet-based consulting system by integrating a variety of disciplines and functions of design and construction processes. This model will cover a range of design phases, such as, information gathering, automatic remote consultation, specific problem solving, and collaboration. Finally, in future follow up research, we will apply the proposed model to steel construction in architectural design, and develop a prototype simulation by selecting one type of structural system.
series	CAADRIA
email
last changed	2022/06/07 07:57

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