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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 ascaad2014_023
id ascaad2014_023
authors Al-Maiyah, Sura and Hisham Elkadi
year 2014
title Assessing the Use of Advanced Daylight Simulation Modelling Tools in Enhancing the Student Learning Experience
source Digital Crafting [7th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2014 / ISBN 978-603-90142-5-6], Jeddah (Kingdom of Saudi Arabia), 31 March - 3 April 2014, pp. 303-313
summary In architecture schools, where the ‘studio culture’ lies at the heart of students’ learning, taught courses, particularly technology ones, are often seen as secondary or supplementary units. Successful delivery of such courses, where students can act effectively, be motivated and engaged, is a rather demanding task requiring careful planning and the use of various teaching styles. A recent challenge that faces architecture education today, and subsequently influences the way technology courses are being designed, is the growing trend in practice towards environmentally responsive design and the need for graduates with new skills in sustainable construction and urban ecology (HEFCE’s consultation document, 2005). This article presents the role of innovative simulation modelling tools in the enhancement of the student learning experience and professional development. Reference is made to a teaching practice that has recently been applied at Portsmouth School of Architecture in the United Kingdom and piloted at Deakin University in Australia. The work focuses on the structure and delivery of one of the two main technology units in the second year architecture programme that underwent two main phases of revision during the academic years 2009/10 and 2010/11. The article examines the inclusion of advanced daylight simulation modelling tools in the unit programme, and measures the effectiveness of enhancing its delivery as a key component of the curriculum on the student learning experience. A main objective of the work was to explain whether or not the introduction of a simulation modelling component, and the later improvement of its integration with the course programme and assessment, has contributed to a better learning experience and level of engagement. Student feedback and the grade distribution pattern over the last three academic years were collected and analyzed. The analysis of student feedback on the revised modelling component showed a positive influence on the learning experience and level of satisfaction and engagement. An improvement in student performance was also recorded over the last two academic years and following the implementation of new assessment design.
series ASCAAD
email
last changed 2016/02/15 13:09
_id ascaad2009_hussein_albotany
id ascaad2009_hussein_albotany
authors Albotany, Hussein S.
year 2009
title Development of Digital City Models Using 3d GIS
source Digitizing Architecture: Formalization and Content [4th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2009) / ISBN 978-99901-06-77-0], Manama (Kingdom of Bahrain), 11-12 May 2009, pp. 409-418
summary “Digital city” is a copy of an actual city in the virtual space. It is expected to play an important role in urban planning, disaster simulation etc. Recent advanced remote sensing technologies, which are capable to quickly provide detailed information of city areas, ease the construction of 3D city models. Urbanization has evinced interest from a wide section of the society including experts, amateurs and novices. With the development and infrastructure initiatives mostly around the urban centers, the impacts of urbanization and sprawl would be on the environment and the natural resources. The research introduces an application of 3D GIS on Manama City.
series ASCAAD
email
last changed 2009/06/30 08:12
_id caadria2009_046
id caadria2009_046
authors Haeusler, Matthias Hank
year 2009
title Modulations of Voxel Surfaces Through Emotional Expressions to Generate A Feedback Loop Between Private Mood and Public Image
source Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 173-182
doi https://doi.org/10.52842/conf.caadria.2009.173
summary My proposal is an investigation into the perceptual boundaries between human and architectural expression. It asks how architecture can creatively adopt human expression by using the emotions ‘displayed’ on the ‘surface face’ as a generator for displaying a surface on a voxel façade to achieve a cross-connecting perceptual change with modulations through emotion (Massumi, 2006). Through voxel facades the public with their expressed emotions will be included in the decision process of defining space, by expressing our innermost feelings through an architectural medium. Thus emotions of the individual have a platform and can be conveyed indirectly to the public, and in turn open up discussions about the state of the community through the state of the façade. An alliance of media and place in an urban context can be achieved and created, with the participation of its inhabitants, along with a new perception of how media and architecture can together shape and inform spatial relations for a feedback loop between private mood and public image.
keywords Voxel façade; simulation; human-environment interaction; dynamic space
series CAADRIA
email
last changed 2022/06/07 07:49
_id ecaade2009_179
id ecaade2009_179
authors Halatsch, Jan; Kunze, Antje; Schmitt, Gerhard
year 2009
title Value Lab: a Collaborative Environment for the Planning of Future Cities
source Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 507-514
doi https://doi.org/10.52842/conf.ecaade.2009.507
wos WOS:000334282200061
summary This paper describes how the Value Lab is a) developed and b) used in education, research and workshops for (1) Interactive urban design and scenario planning that includes methods to support concurrent collaborative urban design over distances, and scenario planning based on defined case studies; (2) Visualization techniques for the detection and prediction of changes in urban environments; (3) Knowledge transfer to synthesize, interact with and communicate essential knowledge and findings from an array of disciplines for decision making, education, training, demonstration, and public discussions.
keywords Urban planning, information architecture, multi-touch displays, simulation, city modeling
series eCAADe
email
last changed 2022/06/07 07:50
_id sigradi2009_669
id sigradi2009_669
authors Jacobi, Martina Maldaner; Jan Halatsch; Antje Kunze; Gerhard Schmitt; Benamy Turkienicz
year 2009
title A grammar-based system for the participatory design of urban structures [A grammar-based system for the participatory design of urban structures ]
source SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary We propose a three-step participatory design cycle for the early urban design phase that can be integrated into the digital design chain. Step one involves a visualization method that is implemented as an interactive card-based interview technique for the collaborative requirement specification of urban designs. In step two these specifications are a) translated into simplified GIS data and then b) implemented into a grammar-based system together with the corresponding design regulations. The final outcome is a generative and iterative urban model, which includes buildings, building blocks, transportation networks and open spaces that visually communicates spatial impacts of urban design proposals.
keywords City modeling; participatory design; shape grammars; urban planning
series SIGRADI
email
last changed 2016/03/10 09:53
_id caadria2009_160
id caadria2009_160
authors Shivshankar, P. G. ; R. Balachandar
year 2009
title Green City
source Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 125-134
doi https://doi.org/10.52842/conf.caadria.2009.125
summary This project is about constructing a pedagogical tool for sustainable urban simulation and analysis based on simple network algorithm, where a user (acts as urban designer) can construct an urban scenario, simulate, and analyze the development. This can be done by encoding sustainable urban design parameters with the sequence of simulation.
series CAADRIA
email
last changed 2022/06/07 07:56
_id cf2011_p018
id cf2011_p018
authors Sokmenoglu, Ahu; Cagdas Gulen, Sariyildiz Sevil
year 2011
title A Multi-dimensional Exploration of Urban Attributes by Data Mining
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. 333-350.
summary The paper which is proposed here will introduce an ongoing research project aiming to research data mining as a methodology of knowledge discovery in urban feature analysis. To address the increasing multi-dimensional and relational complexity of urban environments requires a multidisciplinary approach to urban analysis. This research is an attempt to establish a link between knowledge discovery methodologies and automated urban feature analysis. Therefore, in the scope of this research we apply data mining methodologies for urban analysis. Data mining is defined as to extract important patterns and trends from raw data (Witten and Frank, 2005). When applied to discover relationships between urban attributes, data mining can constitute a methodology for the analysis of multi-dimensional relational complexity of urban environments (Gil, Montenegro, Beirao and Duarte, 2009) The theoretical motivation of the research is derived by the lack of explanatory urban knowledge which is an issue since 1970’s in the area of urban research. This situation is mostly associated with deductive methods of analysis. The analysis of urban system from the perspective of few interrelated factors, without considering the multi-dimensionality of the system in a deductive fashion was not been explanatory enough. (Jacobs, 1961, Lefebvre, 1970 Harvey, 1973) To address the multi-dimensional and relational complexity of urban environments requires the consideration of diverse spatial, social, economic, cultural, morphological, environmental, political etc. features of urban entities. The main claim is that, in urban analysis, there is a need to advance from traditional one dimensional (Marshall, 2004) description and classification of urban forms (e.g. Land-use maps, Density maps) to the consideration of the simultaneous multi-dimensionality of urban systems. For this purpose, this research proposes a methodology consisting of the application of data mining as a knowledge discovery method into a GIS based conceptual urban database built out of official real data of Beyoglu. Generally, the proposed methodology is a framework for representing and analyzing urban entities represented as objects with properties (attributes). It concerns the formulation of an urban entity’s database based on both available and non-available (constructed from available data) data, and then data mining of spatial and non-spatial attributes of the urban entities. Location or position is the primary reference basis for the data that is describing urban entities. Urban entities are; building floors, buildings, building blocks, streets, geographically defined districts and neighborhoods etc. Urban attributes are district properties of locations (such as land-use, land value, slope, view and so forth) that change from one location to another. Every basic urban entity is unique in terms of its attributes. All the available qualitative and quantitative attributes that is relavant (in the mind of the analyst) and appropriate for encoding, can be coded inside the computer representation of the basic urban entity. Our methodology is applied by using the real and official, the most complex, complete and up-to-dataset of Beyoglu (a historical neighborhood of Istanbul) that is provided by the Istanbul Metropolitan Municipality (IBB). Basically, in our research, data mining in the context of urban data is introduced as a computer based, data-driven, context-specific approach for supporting analysis of urban systems without relying on any existing theories. Data mining in the context of urban data; • Can help in the design process by providing site-specific insight through deeper understanding of urban data. • Can produce results that can assist architects and urban planners at design, policy and strategy levels. • Can constitute a robust scientific base for rule definition in urban simulation applications such as urban growth prediction systems, land-use simulation models etc. In the paper, firstly we will present the framework of our research with an emphasis on its theoretical background. Afterwards we will introduce our methodology in detail and finally we will present some of important results of data mining analysis processed in Rapid Miner open-source software. Specifically, our research define a general framework for knowledge discovery in urban feature analysis and enable the usage of GIS and data mining as complementary applications in urban feature analysis. Acknowledgments I would like to thank to Nuffic, the Netherlands Organization for International Cooperation in Higher Education, for funding of this research. I would like to thank Ceyhun Burak Akgul for his support in Data Mining and to H. Serdar Kaya for his support in GIS.
keywords urban feature analysis, data mining, urban database, urban complexity, GIS
series CAAD Futures
email
last changed 2012/02/11 19:21
_id f4c5
id f4c5
authors Wang, Xiangyu; Schnabel, Marc Aurel (eds)
year 2009
title Mixed Reality In Architecture, Design, And Construction
source Springer 2009, XIV, 274 p., Hardcover ISBN: 978-1-4020-9087-5
summary Mixed Reality is moving out of the research-labs into our daily lives. It plays an increasing role in architecture, design and construction. The combination of digital content with reality creates an exciting synergy that sets out to enhance engagement within architectural design and construction.

State-of-the-art research projects on theories and applications within Mixed Reality are presented by leading researchers covering topics in architecture, design collaboration, construction and education. They discuss current projects and offer insight into the next wave of Mixed Reality possibilities.

Written for: Practitioners, academics, researchers, and graduate students at universities, and industrial researchers who work with MR and digital media in design and construction

Table of contents PREFACE, by Xiangyu Wang and Marc Aurel Schnabel;

1 MIXED REALITIES: Framing Mixed Realities, by Marc Aurel Schnabel;

2 MIXED REALITY IN DESIGN COLLABORATION: Approaches to Augmenting Virtual Design Environments with Reality, by Xiangyu Wang and Rui Chen; Communication in Augmented Reality Aided Architectural Design, by Hartmut Seichter; A Technological Review to Develop an AR-Based Design Supporting System, by Jin Won Choi; Exploring Presence and Performance in Mixed Reality-Based Design Space, by Xiangyu Wang and Mi Jeong Kim;

3 MIXED REALITY IN ARCHITECTURE: Mobile Architectural Augmented Reality, by Mark Billinghurst and Anders Henrysson; Augmented Reality Visualisation Facilitating the Architectural Process, by Bruce Hunter Thomas; Simulation of an Historic Building Using a Tablet Mixed Reality System, by Atsuko Kaga; Temporal Context and Concurrent Evaluation, by Jules Moloney;

4 MIXED REALITY IN CONSTRUCTION: Key Areas and Issues for Augmented Reality Applications on Construction Sites, by Phillip S Dunston and Do Hyoung Shin; Tracking Technologies for Outdoor Mixed Reality Applications, by Amin Hammad; Augmented 3D Arrows Reach their Limits in Automotive Environments, by Marcus Tönnis and Gudrun Klinker;

5 MIXED REALITY IN EDUCATION / LEARNING: Visualising Future Cities in the ETH Value Lab, by Remo Burkhard and Gerhard Schmitt; Interplay of Domains: New Dimensions of Design Learning in Mixed Realities, by Marc Aurel Schnabel; Debating Opportunities: Learning Design through Different Structures, by Thomas Kvan;

POSTSCRIPT: Epilogue, by Marc Aurel Schnabel and Xiangyu Wang;

Author Biographies; Glossary; References; Index.
keywords architecture, design and construction, mixed reality
series book
type normal paper
email
more http://www.springerlink.com/content/978-1-4020-9087-5
last changed 2009/03/06 11:51
_id sigradi2009_775
id sigradi2009_775
authors Alves, Andressa Schneider; José Luis Farinatti Aymone
year 2009
title Modelagem 3D e animação para o desenvolvimento de um modelo virtual interativo em realidade virtual (VRML) na área de moda [3D modeling and animation for the development of an interactive virtual model in virtual reality (VRML) in fashion ]
source SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary This article describes the development of a project that combines modeling and animation of three-dimensional objects (virtual model, clothing, environment) in the software 3D Studio Max with VRML (Virtual Reality Modeling Language). The project allows various interactions between the user and the environment developed. The main interaction is the choice of clothing, in which different parts can be proven in the virtual model. The results can be applied to online sales, marketing strategies and 3D virtual simulation.
keywords Modelagem tridimensional; Animação; Realidade Virtual; Moda; Fashion Design
series SIGRADI
email
last changed 2016/03/10 09:47
_id sigradi2009_037
id sigradi2009_037
authors Aroztegui Massera, Carmen; Rodrigo García Alvarado; María Isabel López
year 2009
title El Storyboard y el Animatic en la Enseñanza del Proyecto de Arquitectura [Storyboarding and Animatics in Architectural Education]
source SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary This paper discusses the issues involved with the introduction of the storyboard and the animatic in a design studio exercise. Storyboards - sketches used in film planning -, and the animatic - basically a moving storyboard - allow the student to understand space within in the context of a narrative. The purpose of the exercise was to enable the expression of subjectively experienced space in an early stage of urban context analysis. Differently than the traditional approach to animation which results a camera traveling through a path, the exercise approached animation from the perspective of the stories about the place.
keywords storyboard; animatic; education; architecture studio
series SIGRADI
email
last changed 2016/03/10 09:47
_id ecaade2009_042
id ecaade2009_042
authors Barlieb, Christophe; Richter, Christoph; Greschner, Björn; Tamke, Martin
year 2009
title Whispering Wind: Digital Practice and the Sustainable Agenda
source Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 543-550
doi https://doi.org/10.52842/conf.ecaade.2009.543
wos WOS:000334282200065
summary Low frequency noise generated by aircraft during pre-takeoff, takeoff, landing and post-landing operations equates to high levels of undesirable ground noise pollution. This phenomenon is gaining heightened popular interest among air transportation specialists and agencies as urban settlements and airports expand beyond post-war city limits to meet demands of the 21st Century. This paper highlights the advantages of employing digital tools in tight collaboration with academics and professionals at the early stages of the design process and revisits ancient architectural design strategies to arrive at more meaningful and sustainable architectural interventions.
keywords Acoustic, architecture, opensource, passive design, sustainability
series eCAADe
email
last changed 2022/06/07 07:54
_id sigradi2009_821
id sigradi2009_821
authors Beirão, José Nuno; Nuno Montenegro; Jorge Gil; José P. Duarte; Rudi Stouffs
year 2009
title The city as a street system: A street description for a city ontology
source SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary The street system is an important component of the city ontology created for a generative urban design tool and should be able to integrate the many visions or interpretations that designers or other urban design agents may have about streets. This paper describes several characteristics of the street system, with its components organized into object classes which are the shape sets of algebras used by a generation module to generate street network representations that can be assessed by a GIS platform.
keywords Ontology; urban design; shape grammars; planning
series SIGRADI
email
last changed 2016/03/10 09:47
_id ascaad2016_013
id ascaad2016_013
authors Belkis Öksüz, Elif
year 2016
title Parametricism for Urban Aesthetics - A flawless order behind chaos or an over-design of complexity
source Parametricism Vs. Materialism: Evolution of Digital Technologies for Development [8th ASCAAD Conference Proceedings ISBN 978-0-9955691-0-2] London (United Kingdom) 7-8 November 2016, pp. 105-112
summary Over the last decade, paradigm shifts in the philosophy of space-time relations, the change from space-time to spatio-temporality, caused significant changes in the design field, and introduced new variations and discourses for parametric approaches in architecture. Among all the discourses, parametricism is likely the most spectacular one. The founder of parametricism, Patrik Schumacher (2009) describes it as “a new style,” which has “the superior capacity to articulate programmatic complexity;” and “aesthetically, it is the elegance of ordered complexity in the sense of seamless fluidity.” In its theoretical background, Schumacher (2011) affiliates this style with the philosophy of autopoiesis, the philosophy that stands between making and becoming. Additionally, parametricism concerns not only the physical geometry in making of form; but also discusses the relational and causal aspects in becoming of form. In other words, it brings the aesthetic qualities in making through the topological intelligence behind becoming. Regarding that, parametricism seems an effective way of managing /creating complex topologies in form-related issues. However, when it comes to practice, there are some challenging points of parametricism in large-scale design studies. Thus, this work underlines that the dominance of elegance for urban planning has the potential of limiting the flexible and dynamic topology of the urban context, and objectifying the whole complex urban form as an over-designed product. For an aesthetic inquiry into urban parametricism, this paper highlights the challenging issues behind the aesthetic premises of parametricism at the urban design scale. For that, Kartal Master Plan Design Proposal by Zaha Hadid Architects (2006) will be discussed as an exemplary work.
series ASCAAD
email
last changed 2017/05/25 13:31
_id cf2011_p127
id cf2011_p127
authors Benros, Deborah; Granadeiro Vasco, Duarte Jose, Knight Terry
year 2011
title Integrated Design and Building System for the Provision of Customized Housing: the Case of Post-Earthquake Haiti
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. 247-264.
summary The paper proposes integrated design and building systems for the provision of sustainable customized housing. It advances previous work by applying a methodology to generate these systems from vernacular precedents. The methodology is based on the use of shape grammars to derive and encode a contemporary system from the precedents. The combined set of rules can be applied to generate housing solutions tailored to specific user and site contexts. The provision of housing to shelter the population affected by the 2010 Haiti earthquake illustrates the application of the methodology. A computer implementation is currently under development in C# using the BIM platform provided by Revit. The world experiences a sharp increase in population and a strong urbanization process. These phenomena call for the development of effective means to solve the resulting housing deficit. The response of the informal sector to the problem, which relies mainly on handcrafted processes, has resulted in an increase of urban slums in many of the big cities, which lack sanitary and spatial conditions. The formal sector has produced monotonous environments based on the idea of mass production that one size fits all, which fails to meet individual and cultural needs. We propose an alternative approach in which mass customization is used to produce planed environments that possess qualities found in historical settlements. Mass customization, a new paradigm emerging due to the technological developments of the last decades, combines the economy of scale of mass production and the aesthetics and functional qualities of customization. Mass customization of housing is defined as the provision of houses that respond to the context in which they are built. The conceptual model for the mass customization of housing used departs from the idea of a housing type, which is the combined result of three systems (Habraken, 1988) -- spatial, building system, and stylistic -- and it includes a design system, a production system, and a computer system (Duarte, 2001). In previous work, this conceptual model was tested by developing a computer system for existing design and building systems (Benr__s and Duarte, 2009). The current work advances it by developing new and original design, building, and computer systems for a particular context. The urgent need to build fast in the aftermath of catastrophes quite often overrides any cultural concerns. As a result, the shelters provided in such circumstances are indistinct and impersonal. However, taking individual and cultural aspects into account might lead to a better identification of the population with their new environment, thereby minimizing the rupture caused in their lives. As the methodology to develop new housing systems is based on the idea of architectural precedents, choosing existing vernacular housing as a precedent permits the incorporation of cultural aspects and facilitates an identification of people with the new housing. In the Haiti case study, we chose as a precedent a housetype called “gingerbread houses”, which includes a wide range of houses from wealthy to very humble ones. Although the proposed design system was inspired by these houses, it was decided to adopt a contemporary take. The methodology to devise the new type was based on two ideas: precedents and transformations in design. In architecture, the use of precedents provides designers with typical solutions for particular problems and it constitutes a departing point for a new design. In our case, the precedent is an existing housetype. It has been shown (Duarte, 2001) that a particular housetype can be encoded by a shape grammar (Stiny, 1980) forming a design system. Studies in shape grammars have shown that the evolution of one style into another can be described as the transformation of one shape grammar into another (Knight, 1994). The used methodology departs takes off from these ideas and it comprises the following steps (Duarte, 2008): (1) Selection of precedents, (2) Derivation of an archetype; (3) Listing of rules; (4) Derivation of designs; (5) Cataloguing of solutions; (6) Derivation of tailored solution.
keywords Mass customization, Housing, Building system, Sustainable construction, Life cycle energy consumption, Shape grammar
series CAAD Futures
email
last changed 2012/02/11 19:21
_id cf2009_314
id cf2009_314
authors Boerner, Andrea; Maquil, Valérie
year 2009
title Enhancing synergies between computer science and urban disciplines: Semi-automated applications for tangible user interfaces, a case study
source T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 314-327
summary This paper explores an interdisciplinary design approach for coupling semi-automated applications with tangible user interfaces. It describes communication methods based on parameters and diagrams, between computer scientists and urban, architectural professionals and the matching abilities to give meaning to the various parts and elements of the system. By means of the development of two rule based applications it exploits different degrees of automation and kinds of feedback possibilities and its impact on discourse and decision making. It discusses design methods for interactive urban planning applications, which integrate the different requirements and benefits from both disciplines.
keywords Tangible user interfaces, semi-automation, decision making, urban planning
series CAAD Futures
email
last changed 2009/06/08 20:53
_id cf2009_119
id cf2009_119
authors Boeykens, Stefan; Neuckermans, Herman
year 2009
title Architectural design analysis, historical reconstruction and structured archival using 3D models: Techniques, methodology and long term preservation of digital models
source T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 119-132
summary With the increased usage of 3D modeling, visualization, simulation and Building Information Modeling, architects produce 3D models, both for new designs and for historic reconstructions. However, these models are seldom shared to transfer structured information about the project. Even if they are exchanged, they are often not usable outside of their original design application. Additionally, digital archives with architectural content can not easily provide structured information about these 3D models, limiting their usefulness. This article discusses an approach to provide better structured models, using a combination of a sound methodology, the application of open file formats and additional metadata creation.
keywords CAAD, design analysis, reconstruction, archival, preservation
series CAAD Futures
email
last changed 2009/06/08 20:53
_id cf2011_p157
id cf2011_p157
authors Boton, Conrad; Kubicki Sylvain, Halin Gilles
year 2011
title Understanding Pre-Construction Simulation Activities to Adapt Visualization in 4D CAD Collaborative Tools
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. 477-492.
summary Increasing productivity and efficiency is an important issue in the AEC field. This area is mainly characterized by fragmentation, heterogeneous teams with low lifetimes and many uncertainties. 4D CAD is one of the greatest innovations in recent years. It consists in linking a 3D model of the building with the works planning in order to simulate the construction evolution over time. 4D CAD can fill several needs from design to project management through constructivity analysis and tasks planning (Tommelein 2003). The literature shows that several applications have been proposed to improve the 4D CAD use (Chau et al. 2004; Lu et al. 2007; Seok & al. 2009). In addition, studies have shown the real impact of 4D CAD use in construction projects (Staub-French & Khanzode 2007; Dawood & Sika 2007). More recently, Mahalingam et al. (2010) showed that the collaborative use of 4D CAD is particularly useful during the pre-construction phase for comparing the constructability of working methods, for visually identifying conflicts and clashes (overlaps), and as visual tool for practitioners to discuss and to plan project progress. So the advantage of the 4D CAD collaborative use is demonstrated. Moreover, several studies have been conducted both in the scientific community and in the industrial world to improve it (Zhou et al. 2009; Kang et al. 2007). But an important need that remains in collaborative 4D CAD use in construction projects is about the adaptation of visualization to the users business needs. Indeed, construction projects have very specific characteristics (fragmentation, variable team, different roles from one project to another). Moreover, in the AEC field several visualization techniques can represent the same concept and actors choose one or another of these techniques according to their specific needs related to the task they have to perform. For example, the tasks planning may be represented by a Gantt chart or by a PERT network and the building elements can be depicted with a 3D model or a 2D plan. The classical view (3D + Gantt) proposed to all practitioners in the available 4D tools seems therefore not suiting the needs of all. So, our research is based on the hypothesis that adapting the visualization to individual business needs could significantly improve the collaboration. This work relies on previous ones and aim to develop a method 1) to choose the best suited views for performed tasks and 2) to compose adapted multiple views for each actor, that we call “business views”. We propose a 4 steps-method to compose business views. The first step identifies the users’ business needs, defining the individual practices performed by each actor, identifying his business tasks and his information needs. The second step identifies the visualization needs related to the identified business needs. For this purpose, the user’s interactions and visualization tasks are described. This enables choosing the most appropriate visualization techniques for each need (step 3). At this step, it is important to describe the visualization techniques and to be able to compare them. Therefore, we proposed a business view metamodel. The final step (step 4) selects the adapted views, defines the coordination mechanisms and the interaction principles in order to compose coordinated visualizations. A final step consists in a validation work to ensure that the composed views really match to the described business needs. This paper presents the latest version of the method and especially presents our latest works about its first and second steps. These include making more generic the business tasks description in order to be applicable within most of construction projects and enabling to make correspondence with visualization tasks.
keywords Pre-construction, Simulation, 4D CAD, Collaboration, Computer Supported Cooperative Work, Human-Computer Interface, Information visualization, Business view, Model driven engineering
series CAAD Futures
email
last changed 2012/02/11 19:21
_id caadria2009_017
id caadria2009_017
authors Bruton, Dean
year 2009
title On Distributed Network Rendering Systems
source Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 65-74
doi https://doi.org/10.52842/conf.caadria.2009.065
summary This paper reports an investigation of the establishment and performance of a distributed computer rendering system for advanced computer graphics production within a centralized university information technology environment. It explores the proposal that the use of distributed computer rendering systems in industry and universities offers synergies for university-industry collaborative agreements. Claims that cluster computing and rendering systems are of benefit for computer graphics productions are to be tested within a standard higher education environment. A small scale distributed computer rendering system was set up to investigate the development of the optimum use of intranet and internet systems for computer generated feature film production and architectural visualisation. The work entailed using monitoring, comparative performance analysis and interviews with relevant stakeholders. The research provides important information for practitioners and the general public and heralds the initiation of a Centre for Visualization and Animation research within the School of Architecture, Landscape Architecture and Urban Design, University of Adelaide.
keywords Render farm, processing, computer graphics, animation
series CAADRIA
email
last changed 2022/06/07 07:54
_id sigradi2009_964
id sigradi2009_964
authors Castriota, Leonardo Barci; Rezende
year 2009
title Fotografia digital e imagens multi-perspectivas no estudo de sítios históricos [Digital photography and multi-perspective image in the study of historical sities]
source SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary The creation of panoramic images for depicting urban landscape is a technique that has its origins in Antiquity. These images, which are known to represent large urban areas from multiple views, can be considered true works of art. Recently there has been a growing interest by some researchers, especially in the area of computer graphics, in the production of multi-perspective images for representing historic sites. However, the focus of these studies has been especially the computational aspects of this process, and there are few studies that address the impact and possibilities of these methodologies in historic preservation and urban planning. Realizing this shortcoming and considering the demand for a perspective more connected to cultural heritage, our proposal is to associate the excellent visual results of the multi-perspective images to the rich possibilities of computer simulation that can provide digital photography. The fact is that in recent years we have experienced technological innovations in the field of computer simulation that far exceeded our expectations. While most surveys of buildings are still based on the use of tape measure, pencil, paper and camera, the computer has become increasingly the main interface between the user and the information and is now the preferred instrument for the production and viewing of images, including the creation of virtual environments. Thus, this work seeks to explore the great potential which seems to exist in the combination of digital photography and the technique of multi-perspective image representation, which may provide new approaches and perspectives for the field of historic preservation. For that, we present a rapid and low cost methodology, developed in recent years, which generates orthophotos and metric multi-perspective images, useful for the analysis of built heritage and historic sites. In addition to that, we will also discuss further possible byproducts of this methodology, among which we could highlight the creation of three-dimensional models, and the analysis of building pathologies in combination with thermal photography. As a case study, we will present a representation of the Rua dos Caetés, a listed historic district in Belo Horizonte (MG), Brazil.
keywords Photogametry; Digital Photography; Heritage; Conservation
series SIGRADI
email
last changed 2016/03/10 09:48
_id cf2011_p135
id cf2011_p135
authors Chen Rui, Irene; Schnabel Marc Aurel
year 2011
title Multi-touch - the future of design interaction
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. 557-572.
summary The next major revolution for design is to bring the natural user interaction into design activities. Graphical User Interfaces (GUI) brought a new approach that was more effective compared to their conventional predecessors. In recent years, Natural User Interfaces (NUI) have advanced user experiences and multi-touch and gesture technologies provide new opportunities for a variety of potential uses in design. Much attention has been paid to leverage in the design of interactive interfaces. The mouse input and desktop screen metaphors limit the information sharing for multiple users and also delayed the direct interaction for communication between each other. This paper proposes the innovative method by integrating game engine ‘Unity3D’ with multi-touch tangible interfaces. Unity3D provides a game development tool as part of its application package that has been designed to let users to focus on creating new games. However, it does not limit the usage of area to design additional game scenarios since the benefits of Unity3D is allowing users to build 3D environments with its customizable and easy to use editor, graphical pipelines to openGL (http://unity3d.com/, 2010 ). It creates Virtual Reality (VR) environments which can simulates places in the real world, as well as the virtual environments helping architects and designers to vividly represent their design concepts through 3D visualizations, and interactive media installations in a detailed multi-sensory experience. Stereoscopic displays advanced their spatial ability while solving issues to design e.g. urban spaces. The paper presents how a multi-touch tabletop can be used for these design collaboration and communication tasks. By using natural gestures, designers can now communicate and share their ideas by manipulating the same reference simultaneously using their own input simultaneously. Further studies showed that 3Dl forms are perceived and understood more readily through haptic and proprioceptive perception of tangible representations than through visual representation alone (Gillet et al, 2005). Based on the authors’ framework presented at the last CAADFutures, the benefits of integrating 3D visualization and tactile sensory can be illustrated in this platform (Chen and Wang, 2009), For instance, more than one designer can manipulate the 3D geometry objects on tabletop directly and can communicate successfully their ideas freely without having to waiting for the next person response. It made the work more effective which increases the overall efficiency. Designers can also collect the real-time data by any change they make instantly. The possibilities of Uniy3D make designing very flexible and fun, it is deeply engaging and expressive. Furthermore, the unity3D is revolutionizing the game development industry, its breakthrough development platform for creating highly interactive 3D content on the web (http://unity3d.com/ , 2010) or similar to the interface of modern multimedia devices such as the iPhone, therefore it allows the designers to work remotely in a collaborative way to integrate the design process by using the individual mobile devices while interacting design in a common platform. In design activities, people create an external representation of a domain, often of their own ideas and understanding. This platform helps learners to make their ideas concrete and explicit, and once externalized, subsequently they reflect upon their work how well it sits the real situation. The paper demonstrates how this tabletop innovatively replaces the typical desktop metaphor. In summary, the paper addresses two major issues through samples of collaborative design: firstly presenting aspects of learners’ interactions with physical objects, whereby tangible interfaces enables them constructing expressive representations passively (Marshall, 2007), while focussing on other tasks; and secondly showing how this novel design tool allows designers to actively create constructions that might not be possible with conventional media.
keywords Multi-touch tabletop, Tangible User Interface
series CAAD Futures
email
last changed 2012/02/11 19:21

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