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	5c07
authors	Lee, H.-L., Liu, Y.-T., Chen, S.-C., Tang, S.-K. and Huang, C.-P., Huang, C.-H., Chang, Y.-L., Chang, K.-W. and Chen, K.-Y.
year	2002
title	A Comparative study of protocol analysis for - Spatiality of a Text-based Cyberspace
doi	https://doi.org/10.52842/conf.ecaade.2002.262
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. 262-266
summary	Graduate Institute of Architecture, National Chiao Tung University, Hsinchu, 30050, TAIWAN The adaptation of the word cyberspace (Gibson, 1984) following the emergence of the World Wide Web Internet not only succinctly revolutionized the correlation of time and space but also poised to challenge how we view the existing spatial concept. This research tries to use protocol analysis to examine text-based cyberspace, such as bulletin board, chart rooms and so forth, and the objective of this research is to realize the spatiality of cyberspace through the cognitive point of view, and to compare the differences of the definitions and perception ways of spatiality between people with general domain and in design fields. Finally, we validate the existence of cyberspace, where the process not only allows further categorization of spatial elements concluded from the earlier study, but discover that varied backgrounds can affect how a user defines and perceives cyberspace (Strate, 1999).
series	eCAADe
email
last changed	2022/06/07 07:51

_id	0a45
authors	Lee, K.
year	1999
title	Principles of CAD/CAM/CAE Systems
source	New York: Addison-Wesley 1999
summary	An Introduction to CAD/CAM/CAE is a timely text with coverage of many modern topics, including: rapid prototyping, virtual engineering, NT-based solid modeling systems, and Web-related issues. This book provides balanced coverage of CAD/CAM (with slightly more emphasis on CAD topics) and bonus coverage of computer-aided engineering (CAE). This book's emphasis on the integration of three related disciplines-CAD, CAM, and CAE-makes it a great theoretical introduction to all subjects from geometric representation to the most sophisticated CAE subjects. Many illustrations and references ground the theory in practical examples. The book also features a unique illustration of the whole product development process through a practical case study that gives readers a clear idea how CAD, CAM, and CAE systems are integrated to accelerate the product development process. This book is carefully targeted toward today's students; topics are introduced in a concise, efficient manner, with mathematical terminology that is kept to a minimum. A background in programming, calculus, and matrix and vector algebra is helpful when using this text.
series	other
last changed	2003/04/23 15:14

_id	cf2011_p109
id	cf2011_p109
authors	Abdelmohsen, Sherif; Lee Jinkook, Eastman Chuck
year	2011
title	Automated Cost Analysis of Concept Design BIM Models
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. 403-418.
summary	AUTOMATED COST ANALYSIS OF CONCEPT DESIGN BIM MODELS Interoperability: BIM models and cost models This paper introduces the automated cost analysis developed for the General Services Administration (GSA) and the analysis results of a case study involving a concept design courthouse BIM model. The purpose of this study is to investigate interoperability issues related to integrating design and analysis tools; specifically BIM models and cost models. Previous efforts to generate cost estimates from BIM models have focused on developing two necessary but disjoint processes: 1) extracting accurate quantity take off data from BIM models, and 2) manipulating cost analysis results to provide informative feedback. Some recent efforts involve developing detailed definitions, enhanced IFC-based formats and in-house standards for assemblies that encompass building models (e.g. US Corps of Engineers). Some commercial applications enhance the level of detail associated to BIM objects with assembly descriptions to produce lightweight BIM models that can be used by different applications for various purposes (e.g. Autodesk for design review, Navisworks for scheduling, Innovaya for visual estimating, etc.). This study suggests the integration of design and analysis tools by means of managing all building data in one shared repository accessible to multiple domains in the AEC industry (Eastman, 1999; Eastman et al., 2008; authors, 2010). Our approach aims at providing an integrated platform that incorporates a quantity take off extraction method from IFC models, a cost analysis model, and a comprehensive cost reporting scheme, using the Solibri Model Checker (SMC) development environment. Approach As part of the effort to improve the performance of federal buildings, GSA evaluates concept design alternatives based on their compliance with specific requirements, including cost analysis. Two basic challenges emerge in the process of automating cost analysis for BIM models: 1) At this early concept design stage, only minimal information is available to produce a reliable analysis, such as space names and areas, and building gross area, 2) design alternatives share a lot of programmatic requirements such as location, functional spaces and other data. It is thus crucial to integrate other factors that contribute to substantial cost differences such as perimeter, and exterior wall and roof areas. These are extracted from BIM models using IFC data and input through XML into the Parametric Cost Engineering System (PACES, 2010) software to generate cost analysis reports. PACES uses this limited dataset at a conceptual stage and RSMeans (2010) data to infer cost assemblies at different levels of detail. Functionalities Cost model import module The cost model import module has three main functionalities: generating the input dataset necessary for the cost model, performing a semantic mapping between building type specific names and name aggregation structures in PACES known as functional space areas (FSAs), and managing cost data external to the BIM model, such as location and construction duration. The module computes building data such as footprint, gross area, perimeter, external wall and roof area and building space areas. This data is generated through SMC in the form of an XML file and imported into PACES. Reporting module The reporting module uses the cost report generated by PACES to develop a comprehensive report in the form of an excel spreadsheet. This report consists of a systems-elemental estimate that shows the main systems of the building in terms of UniFormat categories, escalation, markups, overhead and conditions, a UniFormat Level III report, and a cost breakdown that provides a summary of material, equipment, labor and total costs. Building parameters are integrated in the report to provide insight on the variations among design alternatives.
keywords	building information modeling, interoperability, cost analysis, IFC
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	4fa1
authors	Lee, E., Ida, Y., Woo, S. and Sasada, T.
year	1999
title	Environmental Design Using Fractals in Computer Graphics
doi	https://doi.org/10.52842/conf.ecaade.1999.533
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 533-538
summary	Computer graphics have developed efficient techniques for visualisation of the real world. Many of the algorithms have a physical basis, such as computational models for the light and the shadow, models of real objects (buildings, mountains, roads and so on) and the simulation of natural phenomenon. Now computer graphics techniques provide the virtual world with a perception of three dimensions. The concept of the virtual world and its technology have been expanding and intensifying in recent years. Almost everything in the real world has been simulated in virtual world. When it comes to a terrain model, what we need is labour and time. But now it is possible to simulate terrain like the real world using fractals in computer graphics with a very small program and small data set. This study aims to show how to build a real world impression in the virtual world. In this paper the authors suggest a landscape design method and show the results of its application.
keywords	Fractals, Polygon-Reduction, Computer Graphics, Virtual World, Collaboration
series	eCAADe
last changed	2022/06/07 07:51

_id	6a42
authors	Woo, S., Lee, E. and Sasada, T.
year	1999
title	Shared Virtual Space for Evaluation of Design Alternatives
doi	https://doi.org/10.52842/conf.caadria.1999.089
source	CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 89-95
summary	The evaluation of design alternatives is important phase for quick design decision and new design conception, and it is repeatedly processed. For smooth and fast process lots of design alternatives are provided within the limit of possibility and it must be evaluated appropriately. It can be possible through evaluating design alternatives using various media. This paper describes the characteristics of Shared Virtual Space which have developed for evaluation of design alternatives, and evaluates Shared Virtual Space based on the findings of case studies.
series	CAADRIA
last changed	2022/06/07 07:57

_id	e2ea
authors	Lee, Hwa-Ryong
year	1999
title	The Changing Face of Architectural Computing Research
doi	https://doi.org/10.52842/conf.ecaade.1999.011
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 11-17
summary	This paper examines the existing commercial and on-going research computer applications for architectural design. It investigates their uses, predictions and limitations; and reviews the teleology, technologies and theories exploited for computerising design. Finally, I will discuss two trends in the developments of CAAD, and present the new directions in CAAD research. This study will be based on understanding the computer's roles in designing, and further on establishing a new theoretical paradigm for mediating a computer system.
keywords	Historical Context, Theoretical Paradigms
series	eCAADe
email
last changed	2022/06/07 07:51

_id	221d
authors	Lee, Sanghyun
year	1999
title	Internet-based collaborative design evaluation : an architect's perspective
source	Harvard University
summary	This research aims at developing a design evaluation system that employs a Product Model as the logical basis for integrating building design and construction processes. The system is implemented with Java language, which allows the system to work over the Internet. Accordingly, the system helps architects to collaborate with remote participants. Thus, this design evaluation system is a building performance evaluator like DOE-2, RADIANCE, HVAC, and the Automated Building Code Checker. This research, however, is mainly concerned with an architect's view during the schematic design and design development stage, while the existing design evaluation systems cover other special consultants' views such as those of HVAC designers, structural engineers, and contractors. From an architect's view, this evaluation system checks the compliance of design objects represented by means of physical objects such as walls and windows and conceptual objects such as rooms as well, to the design criteria focused on accommodating human behavior, rather than other building performances such as sustaining building structures and maintaining indoor livability. As such, the system helps designers analyze and evaluate design solutions according to their original intent. The innovative points of this research lie in the following: (1) Unlike other inquiries, it addresses a systematic evaluation of building design from an architect's view focusing on the experiential quality of the built environment. This research demonstrates that such an evaluation becomes available by introducing human activity-based evaluation. (2) It can take a multi-agenda for several groups of different interests by providing an Aspect Model based on human activity-centered systematic translation of their design considerations and 3D model-based graphical representations into system readable ones. (3) As a result, it addresses the possibility of expanding the capability of the design evaluator from a mere code checker to a general design evaluator while simultaneously, enhancing the availability from stand alone to Internet based networking.
keywords	Architectural Rendering; Data Processing; Evaluation; Buildings; Performance; World Wide Web; Internet
series	thesis:PhD
last changed	2003/02/12 22:37

_id	caadria2006_573
id	caadria2006_573
authors	WEN-YEN TANG, SHENG-KAI TANG
year	2006
title	THE DEVELOPMENT OF A TACTILE MODELING INTERFACE
doi	https://doi.org/10.52842/conf.caadria.2006.x.o8n
source	CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 573-575
summary	Recently, more and more researchers dedicated in the development of human computer interaction for CAD systems, such as gestural input of three dimensional coordinates (Lee, Hu, and Selker, 2005), flexible manipulation of NURBS objects (Cohen, Markosian, Zeleznik, Hughes, and Barzel, 1999; Emmerik, 1990), and the creation of force feedback (Wu, 2003). These research results indicated that the more intuitive control the device can provide in modeling process, the more creative solutions can be generated (Lee, Hu, and Selker, 2005; Schweikardt and Gross, 2000; Wu, 2003).
series	CAADRIA
email
last changed	2022/06/07 07:49

_id	deeb
authors	Lee, Eunjoo
year	1999
title	A Study on the Application of Computer Graphics Technology to Landscape Design of Coastal Areas
source	Osaka University, Department of Environmental Engineering,
series	thesis:PhD
email
last changed	2003/02/12 22:37

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