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	ecaade2012_161
id	ecaade2012_161
authors	Araujo, Bruno; Jorge, Joaquim; Duarte, Jose
year	2012
title	Combining Virtual Environments and Direct Manipulation for Architectural Modeling
doi	https://doi.org/10.52842/conf.ecaade.2012.2.419
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 419-428
summary	In this paper we present an environment for conceptual design which mimicsthe interaction of designers with physical mockups. We present novel three dimensional on-and-above-the-surface interactive techniques which combine asymmetric bimanual operations with multi-touch direct manipulation on a fl at surface and depth cameras. These take advantage of a continuous interaction space to create and edit 3D models in a stereoscopic environment. To allow modeling architectural shapes directly, we combine hand and finger tracking in the space above the table with multi-touch on its surface without the need to change modes. This provides an alternative design environment where users can seamlessly switch between interacting on the surface or in the space above it depending on the task, which makes it easier to model complex shapes using simple operations.
wos	WOS:000330320600044
keywords	3D Modeling; 3D User Interfaces; Virtual Reality; Procedural Modeling
series	eCAADe
email
last changed	2022/06/07 07:55

_id	acadia12_343
id	acadia12_343
authors	Leidi, Michele ; Schlüter, Arno
year	2012
title	Formal and Functional Implications of Dynamics-Related Solar Design Schemes
doi	https://doi.org/10.52842/conf.acadia.2012.343
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 343-354
summary	In recent years several solar radiation simulation tools have been developed to assist architects in analyzing the performance of existing building designs. However it is often unclear how the results of these analyses can help to generate new solutions and thus be truly beneficial for innovation in sustainable architectural design. Recent developments in open source applications that allow links between energy simulation engines and 3D modeling environments open a new layer of understanding. The possibility to better understand the dynamic interaction between incident solar radiation and building envelopes allows the synthesis of new architectural design-schemes. This paper presents the results of a series of experiments based on the case-study of a mid-latitude single-family house in Taiki-Cho, Japan. The first experiment describes how the incident solar energy interacts with the exposed components of the envelope. The second experiment describes how the energy demand of the building can be partially reduced through the design of passive interventions that are based on the dynamics of the demand. Finally, the third experiment exemplifies how, based on the knowledge extracted from the first two experiments, it is possible to synthesize new dynamics-related solar design-schemes that join passive techniques, active technologies, and formal aspects.
keywords	Form , Function , Dynamics , Solar , Design-Scheme , Mid-latitude
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:52

_id	ecaade2012_041
id	ecaade2012_041
authors	Patlakas, Panagiotis ; Altan, Hasim
year	2012
title	Visualizing Post - Occupancy Evaluation Data: Rationale, methodology and potential of EnViz, a visualization software prototype
doi	https://doi.org/10.52842/conf.ecaade.2012.1.647
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 647-653.
summary	This paper introduces EnViz, a software prototype for the visualization of environmental data collected from post-occupancy evaluation surveys. The piece begins by introducing the rationale for the software, and why the authors believe it can be a valuable aid for environmental building design. The development methodology is described and the basic operability and interface are presented. A case study is introduced, and the results from the application of the software on the data from it are presented with accompanying images. Further results are presented, from the use of the software in workshops with undergraduate and post-graduate students, as well as researchers and professionals. Finally, future directions of the software development and the potential of the software are given.
wos	WOS:000330322400068
keywords	Visualization; post-occupancy evaluation; indoor environmental data; 3D graphics
series	eCAADe
email
last changed	2022/06/07 07:59

_id	caadria2012_067
id	caadria2012_067
authors	Delfosse, Vincent; John Schrayen, Roland Juchmes and Pierre Leclercq
year	2012
title	Some advice for migrating to IFC
doi	https://doi.org/10.52842/conf.caadria.2012.265
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 265–274
summary	Nowadays, the BIM (Building Information Modelling) paradigm is a central topic in the CAAD community. Next to the commercial solutions, the IFC (Industry Foundation Classes) have emerged as the best open standard candidate for BIM interoperability. Despite the efforts of the community for promoting IFC over the last 15 years, it seems that its practical adoption in real-life projects has been very limited. The goal of this article is to explore how useful IFC can be today and to provide the reader with some advice for an effective adoption of IFC. Over the last year, we have conducted a project aiming at acquiring a sound understanding of IFC. It was made of two complementary investigations. On one hand, we have focused on the commercial modelling tools and the IFC support they were offering. On the other hand, we have focused on the IFC-based software developments. We have developed a tool converting IFC files into a dedicated thermal assessment based model. We will summarise the experience we have acquired in this project into some advice for users migrating to IFC. Our goal is to confront the practical aspects of the IFC developments, with both the theoretical ambitions and the commercial support currently available.
keywords	Building information modelling; industry foundation classes; interoperability
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	ecaade2012_317
id	ecaade2012_317
authors	Boeykens, Stefan ; Himpe, Caroline ; Martens, Bob
year	2012
title	A Case Study of Using BIM in Historical Reconstruction: The Vinohrady synagogue in Prague
doi	https://doi.org/10.52842/conf.ecaade.2012.1.729
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 729-737.
summary	This article refl ects on the digital reconstruction of the Vinohrady Synagogue in Prague, which was demolished in 1951. Based on an international collaboration through the Erasmus program, expertise derived from other Viennese synagogue reconstructions at TU Vienna was combined with a resource organization methodology developed at KU Leuven. The reconstruction process is carried out using BIM software, which poses some particular attention on the software methodology and model structure, but at the same time illustrates the added value of a BIM approach, when comparing with more traditional CAD modelling systematics. Of particular interest is the approach for modelling complex geometry, integrating with more traditional 2D documents and for visualizing reconstruction assumptions within the 3D model representation.
wos	WOS:000330322400077
keywords	Virtual reconstruction; destroyed synagogue; 3D-modeling; BIM; urban context
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ecaade2012_303
id	ecaade2012_303
authors	Cheng, Nancy Yen-wen
year	2012
title	Shading With Folded Surfaces: Designing With Material, Visual and Digital Considerations
doi	https://doi.org/10.52842/conf.ecaade.2012.2.613
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 613-620
summary	This paper analyses a hybrid design approach; how physical and digital processes can inform each other in a multivalent design cycle. It describes the design of origami-inspired window shades, part of the Shaping Light project that explores how adjustable surface structures can modulate light levels and heat gain in response to the changing seasons. The screen uses sloped surfaces to diffuse light and create apertures that close when the screen is stretched and open when the screen is folded. The project complements digital methods for pattern proportioning and kinetic simulation with manual manipulation to generate 3D folding motifs and refi ne assemblies. Physical prototypes can shape digital refi nement by revealing visual and structural characteristics of materials, along with joint and production considerations. Physical models for simulating sunny and cloudy daylighting conditions provide a direct connection between spatial confi guration and visual effects. The paper concludes with guidelines for material-based digital-analog creation.
wos	WOS:000330320600066
keywords	Architectural design process; digital fabrication; shading devices; origami
series	eCAADe
email
last changed	2022/06/07 07:55

_id	caadria2012_032
id	caadria2012_032
authors	Chok, Kermin
year	2012
title	Automation at scale: Geometry, analysis and post processing
doi	https://doi.org/10.52842/conf.caadria.2012.017
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 17–26
summary	Our team is currently engaged in the peer review of a large steel stadium dome roof. The roof has a diameter of approximately 300m and rises to over 70m in elevation. In addition to its size, the roof also contains a moveable component which can be deployed during inclement weather. The roof structure comprises of approximately 32,000 beams with 10,000 nodes. This paper overviews our efforts in scaling digital design techniques with regards to automation and parametric geometry to expedite the verification of structural members and geometrically complicated connection nodes. The paper will discuss two realms where automation was deployed. The first realm is the verification of Type 1 node connections where less than eight members intersect at a single work point and is relatively geometrically simple. Type 1 nodes were checked against published code requirements. Type 2 connections consisted of nodes where more than eight members intersected or bracing angles did not meet code guidelines. Type 2 nodes were verified using the finite element method and large scale automation of node geometry creation to structural analysis post processing was employed.
keywords	Automation; Rhino 3D; scripting; structural; database
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	acadia12_295
id	acadia12_295
authors	Dierichs, Karola ; Menges, Achim
year	2012
title	Functionally Graded Aggregate Structures: Digital Additive Manufacturing With Designed Granulates
doi	https://doi.org/10.52842/conf.acadia.2012.295
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 295-304
summary	In recent years, loose granulates have come to be investigated as architectural systems in their own right. They are defined as large numbers of elements in loose contact, which continuously reconfigure into variant stable states. In nature they are observed in systems like sand or snow. In architecture, however, they were previously known only from rare vernacular examples and geoengineering projects, and are only now being researched for their innate material potentials. Their relevance for architecture lies in being entirely reconfigurable and in allowing for structures that are functionally graded on a macro level. Hence they are a very relevant yet unexplored field within architectural design. The research presented here is focused on the potential of working with designed granulates, which are aggregates where the individual particles are designed to accomplish a specific architectural effect. Combining these with the use of a computer-controlled emitter-head, the process of pouring these aggregate structures can function as an alternative form of 3D printing or digital additive manufacturing, which allows both for instant solidification, consequent reconfiguration, and graded material properties. In its first part, the paper introduces the field of research into aggregate architectures. In its second part, the focus is laid on designed aggregates, and an analytical design tool for the individual grains is discussed. The third part presents research conducted into the process of additive manufacturing with designed granulates. To conclude, further areas of investigation are outlined especially with regard to the development of the additive manufacturing of functionally graded architectural structures. The potentials of the methodologies developed in this process are shown through the fabrication of a full-scale installation. By integrating material, fabrication, and design constraints into a streamlined computational methodology, the process also serves as a model for a more intuitive production workflow, expanding the understanding of glass as a material with wide-ranging possibilities for a more performative architecture.
keywords	Aggregate Architectures , Digital Additive Manufacturing , Functionally Graded Materials
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:55

_id	caadria2012_080
id	caadria2012_080
authors	Dounas, Theodoros
year	2012
title	Tactics of interactivity in Virtual Reality: Learning from 3d game tools
doi	https://doi.org/10.52842/conf.caadria.2012.223
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 223–232
summary	The present paper tries to explore the potential of visual-heavy tools in the creation of virtual reality worlds, with an emphasis on tools borrowed from 3d electronic games. Compared to earlier approaches in virtual reality creation the paper focuses on game design tools and provides a basic framework for interaction in virtual reality, based on classic rather than digital representations, which is then expanded using digital representations. In the second part of the paper a game creation tool is assessed based on its potential not only of usability but also on guiding the designer in specific paths to designing virtual worlds. The assessment is based on a case study of interaction design.
keywords	Virtual reality; 3d game design; open source
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	ascaad2012_004
id	ascaad2012_004
authors	El-Masri, Souheil; Mazen Kana’an and Mohammed Fawzi Elanany
year	2012
title	Architecture, Digital Techniques & Project Management
source	CAAD \| INNOVATION \| PRACTICE [6th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2012 / ISBN 978-99958-2-063-3], Manama (Kingdom of Bahrain), 21-23 February 2012, pp. 14-20
summary	With the invention of computers, Architecture and other Engineering disciplines have undergone revolutionary developments offering new opportunities for improving efficiency and opening new frontiers for creativity. For example in architecture and urban planning, the discussions have been extended from conventional writings to cover cyberspace, virtual architecture and digital city. Moreover, computers have helped in the realization of many complex projects that would be inconceivable with traditional drawing techniques. This is clearly demonstrated in the works of Frank Gehry's, Zaha Hadid, Daniel Libeskind and many others. In deed, digital techniques have changed the design creative process and how the architects think. Traditionally the structured development architectural ideas from 2D drawings (plans, sections, elevations) towards 3D resolution has been replaced by more interactive approach of 2D & 3D. The changes that digital techniques have brought to the field of Architecture; including practice and education, can obviously be viewed from different angles and incite many discussions and questions. However, the purpose of this presentation is to discuss the role of digital techniques within the overall framework of project management in Gulf Housing Engineering. It starts the discussion with a brief on architecture and digital techniques in the Gulf Region, especially during the “boom period”; a period characterized by rapid production of buildings relying heavily on virtual images. It is against this background, the role of digital techniques is evaluated from a practice point of view. In fact in GHE, digital means are integral parts of the holistic project delivery process starting form initiation, to various design stages to construction ending with project completion. In this process emphasis is paid to the inter-relationships between IT Systems and Quality Control which in turn facilitate measuring, monitoring and reporting on various managerial, technical and design and budgetary aspects of the project. The presentation is supported by real case studies of GHE portfolio. It emphasizes that digital techniques should be an integral part of an overall process and should be seen as means to enhance efficiency and creativity; and should contribute to the betterment of the built environment
series	ASCAAD
email
more	http://www.ascaad.org/conference/2012/papers/ascaad2012_004.pdf
last changed	2012/05/15 20:46

_id	acadia12_139
id	acadia12_139
authors	Erioli, Alessio ; Zomparelli, Alessandro
year	2012
title	Emergent Reefs
doi	https://doi.org/10.52842/conf.acadia.2012.139
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 139-148
summary	The Emergent Reefs project thrives on the potential that emerge from a coherent utilization of the environment’s inherent ecological structure for its own transformation and evolution, using an approach based on digitally simulated ecosystems and sparkled by the possibilities and potential of large-scale 3D printing technology. Considering tourism as an inevitable vector of environmental change, the project aims to direct its potential and economic resources towards a positive transformation, providing a material substrate for the human-marine ecosystem integration with the realization of spaces for an underwater sculpture exhibition. Such structures will also provide a pattern of cavities which, expanding the gradient of microenvironmental conditions, break the existing homogeneity in favor of systemic heterogeneity, providing the spatial and material preconditions for the repopulation of marine biodiversity. Starting from a digital simulation of a synthetic local ecosystem, a generative technique based on multi-agent systems and continuous cellular automata (put into practice from the theoretical premises in Alan Turing’s paper “The Chemical basis of Morphogenesis” through reaction-diffusion simulation) is implemented in a voxel field at several scales giving the project a twofold quality: the implementation of reaction diffusion generative strategy within a non-isotropic 3-dimensional field and integration with the large-scale 3D printing fabrication system patented by D-Shape®. Out of these assumptions and in the intent of exploiting the expressive and tectonic potential of such technology, the project has been tackled exploring voxel-based generative strategies. Working with a discrete lattice eases the simulation of complex systems and processes across multiple scales (including non-linear simulations such as Computational Fluid-Dynamics) starting from local interactions using, for instance, algorithms based on cellular automata, which then can be translated directly to the physical production system. The purpose of Emergent-Reefs is to establish, through strategies based on computational design tools and machine-based fabrication, seamless relationships between three different aspects of the architectural process: generation, simulation and construction, which in the case of the used technology can be specified as guided growth.
keywords	emergence , reef , underwater , 3D printing , ecology , ecosystem , CFD , agency , architecture , tourism , culture , Open Source
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:55

_id	ecaade2012_207
id	ecaade2012_207
authors	Felasari, Sushardjanti ; Peng, Chengzhi
year	2012
title	Supporting Urban Design Learning with Collective Memory Enhanced Virtual City: The Virtual Jalan Malioboro Experiment
doi	https://doi.org/10.52842/conf.ecaade.2012.1.195
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 195-202
summary	The paper reports on the observation of how students can be supported in urban design learning through the use of an experimental collective memory enhanced virtual city - Virtual Jalan Malioboro. This study focuses on how instances of people’s collective memory of the Malioboro Street could be digitally represented and connected with the 3D models of buildings and places of the street. An evaluative study was conducted in a real university educational setting to test how it can support urban design learning. The results show that by enhancing 3D models with collective memory, students are facilitated to become more engaged with the urban site and knowledgeable of historical contextual issues.
wos	WOS:000330322400019
keywords	Urban design; virtual learning environment; collective memory
series	eCAADe
email
last changed	2022/06/07 07:50

_id	ecaade2012_257
id	ecaade2012_257
authors	Fischer, Jan-Ruben
year	2012
title	Optimizing Digital Organic Freeform Modelling for Fabrication by Using Parameterization With Glass Fibre Reinforced Plastics (GRP): A Case Study
doi	https://doi.org/10.52842/conf.ecaade.2012.2.191
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 191-200
summary	In the fabrication of organic free-form shapes in architecture one is constantly faced with specifi c planning and design challenges. This paper examines these problems as well as possible solutions for the design of a completed and built prototype using the example of an organically shaped pavilion made of glass fi bre reinforced plastic modules. The paper describes which adjustments to the original design were required to take the step from “digital physicality” to “physical digitality” to realize a constructive and economically successful implementation. The solutions discussed combine modern digital software methods such as parametric design with innovative 3D modelling principles.
wos	WOS:000330320600019
keywords	Digital fabrication; freeform modelling; parametric design; bionic, GRP
series	eCAADe
email
last changed	2022/06/07 07:50

_id	sigradi2012_95
id	sigradi2012_95
authors	Groetelaars, Natalie Johanna; Arivaldo Leão de Amorim
year	2012
title	Dense Stereo Matching (DSM): conceitos, processos e ferramentas para criação de nuvens de pontos por fotografias [Dense Stereo Matching (DSM): concepts, processes and tools to generate point cloud from photographs]
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 361-365
summary	This paper treats the technology to generate point clouds from photographs, more known as Dense Stereo Matching (DSM) or Structure from Motion (SfM), among other terminologies. The article presents the concepts, basic principles and architectural survey phases with DSM: planning, data acquisition, processing and post-processing to obtain other products from point cloud data. Then, we present several existing software for DSM, classified in three categories: web-based tools, free software/opensource and commercial software. Finally, we discuss the potentialities of this new technologies for architectural documentation and compare DSM with 3D laser scanning.
keywords	Dense Stereo Matching (DSM); Nuvem de pontos; Levantamento cadastral; Documentação arquitetônica; Ferramentas computacionais
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	ascaad2012_025
id	ascaad2012_025
authors	Hamani, Dalil and Jean Michel Olive
year	2012
title	Information System to Improve the Building Production Management Cooperative Work in Design and Architectural Production
source	CAAD \| INNOVATION \| PRACTICE [6th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2012 / ISBN 978-99958-2-063-3], Manama (Kingdom of Bahrain), 21-23 February 2012, pp. 253-270
summary	Our work is to enable partners of a construction project (building owner, architect, engineer, etc.) to share all the technical data produced and manipulated during the building process, by setting up interfaces for an accessible information system via the internet. Our system would be able to deliver an answer to a user to a particular question asked. The system links databases and allows building partners to access and to manipulate specific information. This paper covers the information structure model based on building construction knowledge and the access to user-relevant information. First, the paper aims to establish the state of the art of the information systems available today in the building construction field. Second, we present the contribution of our research to the description of the building elements (foundations, ramps, stairs, etc.), where information is share by partners who are distant from one another and focused on fields of expertise that are distinct but concurrent. Our system links distributed databases and provides an updated building representation that is being enriched and refined all along the building life cycle. It consists of 3D representations of the building as well as data that are associated with each graphical entity (walls, slabs, beams, etc.).
series	ASCAAD
email
more	http://www.ascaad.org/conference/2012/papers/ascaad2012_025.pdf
last changed	2012/05/15 20:46

_id	ijac201210201
id	ijac201210201
authors	Jabi, Wassim
year	2012
title	Augmenting Architecture Through Desktop Manufacturing
source	International Journal of Architectural Computing vol. 10 - no. 2, 163-184
summary	Personal desktop manufacturing, with its roots in hacker culture, is on the cusp of exploding into the main stream due to the advent of affordable personal 3D printers.This paper is an exploration of these advances in desktop manufacturing technology and their impact on our relationship with products and the built environment.The paper draws parallels to the personal computing and desktop publishing revolutions that offer clues to the future of personal desktop manufacturing. Four major themes have emerged from this exploration: Personal empowerment, remote printing and collaboration, full-scale digital construction, and, most intriguingly, architectural prosthetics. Based on an open-source philosophy and creative commons licensing, desktop manufacturing is redefining our relationship with large manufacturers and is beginning to convert us back from a consumerist culture into a creator one.
series	journal
last changed	2019/05/24 09:55

_id	caadria2012_031
id	caadria2012_031
authors	Ji, Guohua; Ying Xu and Ying Wang
year	2012
title	3D urban space information system: A preliminary prototype based on Google Earth plugin
doi	https://doi.org/10.52842/conf.caadria.2012.359
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 359–368
summary	2D GIS has shown its limitations in many situations, especially when it’s applied in urban design. Many studies have been carried out to deal with the problem. Some attempted to link 3D visualisation to data stored within 2D GIS, and others tried to combine GIS, CAD and visualisation together. They all aim to meliorate current GIS for 3D applications. The authors of this paper developed a preliminary prototype of a 3D urban space information system based on Google Earth Plugin. It sets up a server to store and offer specific urban space information. With the desktop application that embeds Google Earth Plugin, user can upload and download models on the server, view them in the virtual 3D environment of Google earth, and make models directly in the 3D environment. A server-side database plays the role of managing information. This paper introduces the key ideas and methods of the system development, including system structure, set-up of the serve, server side information management, and interactive modelling functions.
keywords	GIS; urban design; Google Earth plugin; VB.Net
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	caadria2012_095
id	caadria2012_095
authors	Johansson, Mikael and Mattias Roupé
year	2012
title	Real-time rendering of large building information models: Current state vs. state-of-the-art
doi	https://doi.org/10.52842/conf.caadria.2012.647
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 647–656
summary	With the use of Building Information Models (BIM), real-time 3D visualisations have become a natural tool in order to communicate ideas and share information between all involved parties in a project. Currently, several different BIM viewers are available for the purpose of interactive presentations and design reviews. However, as BIMs become larger and more detailed, it provides a challenge for available software solutions to manage them interactively. In this paper we present our findings from analysing three commonly used BIM viewers - Tekla BIMSight, Autodesk Navisworks and Solibri Model Viewer - in terms of real-time rendering performance. In addition we have developed a prototype BIM viewer to test modern approaches for efficient real-time rendering. Specifically, we have implemented the latest version of the Coherent Hierarchical Culling algorithm. Our results show that existing BIM viewers all share limitations in their ability to handle large and complex BIMs interactively. However, for the same test models, our prototype BIM viewer enables smooth real-time performance with no visual artefacts. The results from our tests thus shows that the technology to enable correct real-time rendering of large and complex BIMs is already accessible, but are currently not utilised by any of the tested BIM viewers.
keywords	3D graphics; BIM; real-time rendering
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	ecaade2012_113
id	ecaade2012_113
authors	Jutraz, Anja ; Zupancic, Tadeja
year	2012
title	Digital system of tools for public participation and education in urban design: Exploring 3D ICC
doi	https://doi.org/10.52842/conf.ecaade.2012.1.383
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 383-392
summary	This article is a starting point for the development of experiential urban co-design interfaces to enhance public participation in local urban projects and to be also used as a communication and collaboration tool in urban design. It is based on the previous research involving 3D city models utilized as understandable design interfaces for the non-technical public (Jutraz, Zupancic, 2011), where we have already explored different views (pedestrian, intermediate and bird’s-eye view), as well as the means by which the information obtained from these different views may be combined by shifting between viewpoints. Previous work was conducted in the “street lab” as well as the Urban Experimental Lab, which was developed specifi cally for the public’s participation in urban planning (Voigt, Kieferle, Wössner, 2009). Presented in this article is the next step that explores the immersive collaboration environment 3D ICC [1], formerly known as Teleplace. The environment was developed for effi cient collaboration and remote communication and shifts the research focus towards questions regarding how to employ both labs as interfaces between the non-technical public and design professionals. As we are facing the lack of digital systems for public participation and education in urban design, different digital tools for communication and collaboration should be combined into a new holistic platform for design. A digital system of tools needs to be developed that supports the urban design decision-making process and focuses on improved final solutions and increased satisfaction amongst all participants. In this article the system of digital tools for public participation, which include communication, collaboration and education, will be also defi ned, with its basic characteristics and its elements.
wos	WOS:000330322400039
keywords	Digital system of tools; collaboration; 3D model; public participation; urban design
series	eCAADe
email
last changed	2022/06/07 07:52

_id	caadria2012_046
id	caadria2012_046
authors	Lertsithichai, Surapong
year	2012
title	Building Thailand's tallest Ganesh: CAD/CAM integration in conventional metal fabrication
doi	https://doi.org/10.52842/conf.caadria.2012.337
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 337–346
summary	Ganesh (Ganesa or Ganesha) is a Hindi god well known for his distinguishable elephant head and widely revered as the god of success or remover of obstacles. Patrons in Thailand have worshipped Ganesh and respected him by means of erecting statues of Ganesh in various poses and sizes throughout the country. In late 2008, the people of Chacheongsao, a province located East of Bangkok, decided to create Thailand’s tallest standing Ganesh statue made with bronze reaching heights up to 39 meters and situated on the Bangpakong river bank overseeing the city and its people. The author and design team was approached by representatives from Chacheongsao and commissioned to advise the process from conception to construction. The challenge started with seeking appropriate computer-aided design and manufacturing technologies and innovative processes to guide the design team throughout the production. The 0.60-meter bronze cast sculpture of the Ganesh was scanned using a 3D optical scanner to generate a solid model of the statue. A surface model was then extracted from the 3D model to firstly determine the most efficient structural support within the statue and secondly to generate surface strips for the foundry to create actual bronze casts. The construction of the project began early 2009 and the statue has since been erected from its base to currently its head. During construction, the author and design team has encountered several problems translating pixels to parts. Several errors have occurred during the mould and cast production process as well as construction errors on site causing mismatches of the structure and surface, misalignments, and protruding structural supports and joints. The lessons learned from this project is documented and analysed with hopes to create a more effective process for future projects with similar requirements.
keywords	CAD/CAM; 3D scanner; CNC milling; metal fabrication
series	CAADRIA
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last changed	2022/06/07 07:52

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