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	caadria2007_441
id	caadria2007_441
authors	Lan, Ju-Hung
year	2007
title	DECADE: An Issue-based and Process-oriented Internet Aided Design System
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
doi	https://doi.org/10.52842/conf.caadria.2007.x.w5e
summary	The research proposed a mechanism to manage design communication information in an internet aided design system based on an issued-based and process-oriented approach. A system prototype with enhanced searching mechanism, named as DECADE, is presented to deal with the ill-structured problem of design communication data. The system performance is evaluated and shows effective results by empirical studies.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	caadria2008_20_session3a_168
id	caadria2008_20_session3a_168
authors	Lan, Ju-Hung
year	2008
title	Smart Space for Office Daily Life: A Situated Life Pattern Approach
source	CAADRIA 2008 [Proceedings of the 13th International Conference on Computer Aided Architectural Design Research in Asia] Chiang Mai (Thailand) 9-12 April 2008, pp. 168-173
doi	https://doi.org/10.52842/conf.caadria.2008.168
summary	Researches in smart space design have been focused on using ubiquitous computing technologies to provide the visions of future lives in physical spaces. However, most researches have less concern for the logical usability in creating smart spaces for the occupants. The study is interested in designing a smart space which is occupant-centric and situated-life-oriented based on ubiquitous computing technologies. A spatial system prototype with smart door, smart wall, and smart table is developed from a situated life pattern approach to support typical office life events. The design problems of integrating ubiquitous computing devices with physical spatial components are explored and discussed.
keywords	Smart space, ubiquitous computing, situated life pattern
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	caadria2012_043
id	caadria2012_043
authors	Lan, Wei-Hsien and Teng-Wen Chang
year	2012
title	Visualising the design process with dynamic graph
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 111–120
doi	https://doi.org/10.52842/conf.caadria.2012.111
summary	Design Process is a continuous decision-making movement. Yet, the designer usually executes the process in a jumping way, from state to the other. Nevertheless, this kind of jumping process would cause loss of some essential information, such as a glance of design, or certain process of shape evolvement which designers want to know. Those unrecorded and therefore missing statistics information are very important to the research of design thinking and process. This study employs an animation and comic as research objects. In addition to utilising the methods of thinking aloud and protocol analysis, as well as recording the progress of this experiment, the information is digitalised. By using computer to develop a webpage-interface visualisation cloud system, called Dynamic Graph System which records and collects the evolving data generated from the space design process and stores this information into the cloud database. The system, then, uses the State space as a base, and utilises the derivative Dynamic Graph of spatial style which is evolved from the collected data of the Design Process. By studying and analysing the dynamic graphs, to investigate whether we can acquire more information of design process by using information visualisation approach to record of the evolution of the design process and helped the designers or not. This study intends to explore whether Dynamic Graph System helps and assists the designer to be more efficient in completing his/her work from the interaction between Dynamic Graph System and the designer.
keywords	Design process; information visualisation; state space search; dynamic graph
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	d4d7
authors	Landau, Steven and Grassi, Marc
year	2002
title	Immersive Real-Time Audio/Visual Architectural Simulations
source	Thresholds - Design, Research, Education and Practice, in the Space Between the Physical and the Virtual [Proceedings of the 2002 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-11-X] Pomona (California) 24-27 October 2002, pp. 401-406
doi	https://doi.org/10.52842/conf.acadia.2002.401
summary	The authors have developed an approach to creating real-time audio-visual architectural simulationsthat allow any viewer to virtually explore the spatial and acoustical implications of a building’s design.Though somewhat limited in depth of the immersive experience, this investigation successfullydemonstrated that architectural presentations can be augmented and enriched by incorporating sensoryinformation other than the visual.
series	ACADIA
last changed	2022/06/07 07:52

_id	acadia17_340
id	acadia17_340
authors	Landim, Gabriele; Digiandomenico, Dyego; Amaro, Jean; Pratschke, Anja; Tramontano, Marcelo; Toledo, Claudio
year	2017
title	Architectural Optimization and Open Source Development: Nesting and Genetic Algorithms
source	ACADIA 2017: DISCIPLINES & DISRUPTION [Proceedings of the 37th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-96506-1] Cambridge, MA 2-4 November, 2017), pp. 340- 349
doi	https://doi.org/10.52842/conf.acadia.2017.340
summary	This research presents a general overview of performance-oriented architectural design and how the rise of parametric modeling and algorithm-aided design enable an integrated environment for project design, simulation and optimization. For optimization processes, one of the most used methods in architectural problem solving is genetic algorithms (GAs). However, as the use of GAs becomes more common in the architecture, it is possible to identify a lack of clarity about the methods and procedures operated by the algorithms. Thus, this research seeks to contribute to the field through the implementation of an open source optimization plugin whose method of implemented algorithms, a GA and a nesting algorithm, can be accessed for evaluation, improvement and adaptation to other architectural problems. In the same way, it discusses the relevance of the openness and clarity of the methods employed in optimization processes in architecture. The proposed plugin was tested in an experiment that verified the feasibility of the development of the open source plugin and the efficiency of the method in solving the chosen architectural problem.
keywords	algorithm-aided design; optimization; genetic algorithm; nesting; open source; computational / artistic cultures; generative system; simulation & optimization; design methods; information processing
series	ACADIA
email
last changed	2022/06/07 07:52

_id	21b9
authors	Landsdown, J.
year	1988
title	Computers and Visualisation of Design Ideas: Possibilities and Promises
source	CAAD futures ‘87 [Conference Proceedings / ISBN 0-444-42916-6] Eindhoven (The Netherlands), 20-22 May 1987, pp. 71-80
summary	Drawing in all its various forms, from freehand sketching to detailed technical layout, is a type of modelling that designers find indispensable. In many cases, indeed, drawing is the only form of external modelling a designer uses. It has two basic functions: to assist in the externalisation and development of mental concepts and to help in the presentation of these concepts to others. The current thrust of work in computer graphics - although valuable - tends to concentrate almost exclusively on the presentation aspects and it is now possible to create images almost resembling photographs of real objects as well as production drawings of great accuracy and consistency. This paper summarises some of this presentation work as well as developments which might go further in assisting the activities and processes of design.
series	CAAD Futures
last changed	1999/04/03 17:58

_id	4a66
authors	Lane, Jeffrey M. and Carpenter, Edward
year	1979
title	A Generalized Scan Line Algorithm for the Computer Display of Parametrically Defined Surfaces
source	Computer Graphics and Image Processing Academic Press Inc., 1979. vol. 11: pp. 290-297 : ill. includes bibliography.
summary	A scan line method is presented for creating shaded pictures of parametrically defined curved surfaces of piecewise continuity class C2. The algorithm uses a new subdivision technique to produce appropriate polygons for smooth shaded pictures. The approach results in smoothly curved silhouettes
keywords	curved surfaces, CAD, CAM, computer graphics, display, rendering, visualization, shading, algorithms
series	CADline
last changed	2003/06/02 10:24

_id	8023
authors	Lang, M.S., Cohen, R.L. and Eschenberg, K.E. (et al)
year	1979
title	Implementation of An Interactive Computer Graphics Environment at NASA/JSC
source	SIGGRAPH '79 Conference Proceedings. August, 1979. vol. 13 ; no. 2: pp. 246-252 : ill. includes bibliography
summary	The implementation of visually-oriented software for graphics support on the high-performance computer graphics hardware at NASA's Johnson Space Center is the latest step in the evolution of an interactive computer applications technology being developed by the Computer Graphics Group at The Applied Research Laboratory of Penn State University. This technology is designed to aid the typical scientist or engineer in learning and using computer graphics productively, including writing his own programs and interfacing to software specialists who will write and maintain his programs. Key aspects of the current development include the creation and incorporation of a visually-oriented learning package for graphics geometric perception and graphics programming, as well as a sophisticated control environment which aides the user in obtaining a quick understanding of and access to the system. Preliminary results indicate that this software support can substantially reduce the start-up time for a novice graphics user with some background in Fortran
keywords	computer graphics, user interface, software, learning, programming, control, education
series	CADline
last changed	2003/06/02 13:58

_id	2006_540
id	2006_540
authors	Lang, Silke Berit
year	2006
title	Learning from other Disciplines for Designing Technologically Enhanced Spaces
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 540-547
doi	https://doi.org/10.52842/conf.ecaade.2006.540
summary	In this paper we explore how design methods from different disciplines can be applied to designing technology-embedded, communicative spaces and how interdisciplinary transfer can be improved. We present design understandings from architecture, engineering, natural sciences, management sciences, and philosophy. Methods, principles, practices, and procedures from mechanical engineering, neuroinformatics and knowledge visualization are applied in handling complex tasks and in improving communication among different disciplines. We present first findings for fruitful cooperation and for transferring knowledge across disciplines.
keywords	Design Methods; Axiomatic Design; Design Axiom
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ecaade2007_102
id	ecaade2007_102
authors	Lang, Silke Berit
year	2007
title	Novel Approaches to City Modeling: Generation and Visualization of Dynamic Complex Urban Systems
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 343-350
doi	https://doi.org/10.52842/conf.ecaade.2007.343
summary	This year, for the first time in history more people are living in cities than in the country. This fact induced us to look at the topic of city modeling from different sides. In this paper we introduce novel approaches that contribute to the generation and visualization of dynamic complex urban systems. We distinguish reality-based and generic city models. On the one hand we look a three dimensional models of urban environments. On the other hand we are looking at the key challenges and trends that will shape future cities. We are drawing parallels to functional models of brain circuitry. City modeling as a case in point provides the basis for our research to arrive at a transdiciplinary theory of design and modeling.
keywords	City modeling, generic modeling, reality-based modeling, mega- cities, sustainable cities
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ecaade2007_106
id	ecaade2007_106
authors	Lang, Silke Berit
year	2007
title	Predicting or Inventing the Future?
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 499-506
doi	https://doi.org/10.52842/conf.ecaade.2007.499
summary	In this paper we discuss the parallels between architectural design and strategic marketing in industry to advance the theme of predicting the future in architecture. Just like companies face the challenge to organize their R&D activities, architects develop different strategies for their designs. Looking at the architectural design process as well as at strategic planning done in companies we recognize that they have much in common. To advance the theme of predicting the future in architecture we draw parallels to strategic marketing in industry. Both activities require a clear vision regarding customer requirements, available technologies, and areas of operation and emerging markets. We report on a successfully implemented method Pictures of the Future at Siemens and relate it to architecture and show possibilities to expand the role of architectural design in the future. We opine that it is now time to expand the architectural curriculum towards Knowledge Architecture.
keywords	Information architecture, knowledge architecture, strategic planning and marketing
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ecaade2015_325
id	ecaade2015_325
authors	Lange, Christian J.
year	2015
title	Shanghai Lilong Tower Urbanism - Towards an Urbanism of Parametric Preservation
source	Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 2, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 493-500
doi	https://doi.org/10.52842/conf.ecaade.2015.2.493
wos	WOS:000372316000056
summary	This paper describes a design approach for a new urban building typology for Shanghai utilizing a set of parametric design techniques to arrive at an alternative solution to current models of urbanization. The goal in this approach was to find a solution that is adaptable and sensitive to the urban environment and has the capacity to preserve historic urban street patterns. The approach included an understanding of the historic urban fabric of Shanghai, a respective plot analysis and the development of a computational method to produce a new urban type. The parametric set-up was build upon an analytical workflow with integrated feedback procedures that informed the design exploration and resulted in multiple design solutions.
series	eCAADe
email
last changed	2022/06/07 07:52

_id	acadia14projects_107
id	acadia14projects_107
authors	Lange, Christian; Rocker, Ingeborg
year	2014
title	Density and Openess Revisited: The Ideal City of Refigured Civic Space
source	ACADIA 14: Design Agency [Projects of the 34th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 9789126724478]Los Angeles 23-25 October, 2014), pp. 107-110
doi	https://doi.org/10.52842/conf.acadia.2014.107
summary	Rethinking tower typologies through computational systems
keywords	Generative, parametric, evolutionary design + Artificial Intelligence in Design
series	ACADIA
type	Research Projects
email
last changed	2022/06/07 07:52

_id	bccd
authors	Lange, E.
year	1994
title	Integration of computerised visual simulation and visual assessment in environmental planning
source	Landscape and Urban Planning 30, pp. 99-112
summary	Contributed by Susan Pietsch (spietsch@arch.adelaide.edu.au)
keywords	3D City Modeling, Development Control, Design Control
series	other
last changed	2001/06/04 20:38

_id	ddss9835
id	ddss9835
authors	Langelaan, J. Willem R.
year	1998
title	Criteria for an object oriented library system of high–level parametric CADelements
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	The subject of this paper is the development of criteria and specifications for an object oriented library system of high–level parametric elements that have an integrated 2D and 3D representation. High–levelelements are virtual representations of architectural elements such as windows, doors, etc. High–level parametric elements need few components to be flexible and easily customizable. The generalization ofeach element by its characteristic parts results in a substantial reduction in the number of polygons that must be processed by the computer during the 3D transformation, graphically clean 3D images and low demandon user intervention. Gestalt theory emphasizes the importance of contour lines for the perception of an element. The “minimalist” symbolic representation will simplify contour lines that enhance perception. Theinherent flexibility and functionality of object oriented elements are augmented when the elements are rigorously developed as an object oriented library system, with classes and sub-classes of elements whichinherit characteristics of the parent–class. Attribute values of a parent–class give the user global control over all instances of that class and its sub–classes in the model’s database. The concepts which SystemsTheory uses for making an abstraction of reality are analogous to the concepts used in object oriented programming. This paper describes how Systems Theory is used as tool to develop high–level parametric elements as a functionally and computationally efficient library system.
series	DDSS
last changed	2003/08/07 16:36

_id	ddss9459
id	ddss9459
authors	Langelaan, Willem
year	1994
title	Sequential and Concurrent Cad Layering
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	Most CAD software allows graphical and text objects to be grouped into layers. There are two fundamentally different methods for layering: sequential layering and concurrent layering. With sequential layering, layers are attributes of the CAD database and objects are attributes of a layer. With concurrent layering, objects are attributes of the CAD database and a layer is an attribute of an object. Sequential layering emulates the pinbar drafting technique. As a result, it is output oriented. Only one layer at a time can be edited. Concurrent layering is uniquely a computer based layering method which has no manual equivalent. User specified sets of layers can be edited concurrently. It makes it possible to organize the infrastructure of the CAD database which equally facilitates input, i.e. editing design information, and output, i.e. presenting construction information on paper. Specification levels are related to design levels and to construction phases. Specification levels can serve as interfaces between input and output. In particular, a concurrently layered CAD database can be structured in layers which conform to specification levels. Furthermore, the layers can be subdivided by sub-system such as construction discipline, and by partial-system such as room finish schedules. It is demonstrated how a concurrently layered environment for computer aided design can be developed which permits deductive and inductive design activities. The appendix provides a detailed example of a concurrently layered CAD file with a default input and output environment of layers and layer groups. The environment was developed to coordinate the design and production activities of an architectural practice. The connections between layers and layer groups are illustrated in a 22 x 32 matrix.
series	DDSS
last changed	2003/08/07 16:36

_id	6960
authors	Langendorf, Richard
year	1986
title	Alternative Models of Architectural Practice: The Impact of Computers -- 1990 and 2000
source	ACADIA Workshop ‘86 Proceedings - Houston (Texas - USA) 24-26 October 1986, pp. 7-27
doi	https://doi.org/10.52842/conf.acadia.1986.007
summary	Though many architectural firms have only recently begun to use computers, and most firms still do not use computers for design, it is likely that by the turn of the century computers will have transformed architectural practice. First this paper assesses the likelihood of change by examining the potential use of computers in architectural practice, summarizing technology forecasts for computer hardware, software, and standards. -However, because there is an opportunity, architectural firms will not necessarily computerize. Next is a brief review of impediments to change and the process of organizational adaptation of new technology. Finally, the paper concludes with a number of forecasts in architectural practice in 1990 and 2000. A variety of professional practice options are defined, with the suggestion that there will be increasing experimentation and diversity within the profession. Finally, the implications of these changes are explored for architectural education.
series	ACADIA
last changed	2022/06/07 07:52

_id	ecaade2015_11
id	ecaade2015_11
authors	Langenhan, Christoph and Petzold, Frank
year	2015
title	Beyond the Bubble - Computer-aided Topological Analysis and Parametric De-sign of Room Configurations in University Education
source	Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 1, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 237-243
doi	https://doi.org/10.52842/conf.ecaade.2015.1.237
wos	WOS:000372317300025
summary	In the early stages of the design process, the conceptual idea of the envisaged building and its design parameters is still vague and incomplete. While the built environment, the end product of this design process, can be represented concretely in the form of drawings or computer models, the initial design idea can usually only be formulated abstractly, for example as schematic functional descriptions or as topological constellations of spaces. In this paper we discuss the use of reference projects to support the design process along with ways of formalising spatial configurations and their use in the design process, and examine how these can be supported using software tools. We discuss the elaboration of requirements for such software tools and their implementation as plug-in to facilitate a seamless process from analysis to evaluation in a parametric design environment. By way of example, we describe selected functionality of a plug-in developed for “Grasshopper” and “Rhino 3D” to support the design process in the early conceptual stages.
series	eCAADe
email
more	https://mh-engage.ltcc.tuwien.ac.at/engage/ui/watch.html?id=d451cf80-702d-11e5-911a-5b8eac8e4692
last changed	2022/06/07 07:52

_id	caadria2023_292
id	caadria2023_292
authors	Langenhan, Christoph, Bielski, Jessica, Ziegler, Christoph, Eisenstadt, Viktor, Althoff, Klaus-Dieter and Dengel, Andreas
year	2023
title	Cross-Disciplinary Semantic Building Fingerprints ‚ AI Knowledge Graphs to Store Topological Building Information Derived From Semantic Building Models (BIM) to Apply Methods of Artificial Intelligence (AI)
source	Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 129–138
doi	https://doi.org/10.52842/conf.caadria.2023.1.129
summary	The advancing digitalization in the building sector with the possibility to store and retrieve large amounts of data has the potential to digitally support planners with extensive design and construction information. Large amounts of semi-structured three-dimensional geometric data of buildings are usually available today, but the topological relationships are rarely explicitly described and thus not directly usable with computational methods of AI. To this end, we propose methods for indexing spatial configurations inspired by the similarity analysis of incomplete human fingerprints, since the early design stage of architectural design is characterized by incomplete information. For this, the topology of spatial configurations is extracted from Building Information Modelling (BIM) data and represented as graphs. In this paper, Semantic Building Fingerprints (SBFs) and Semantic Urban Fingerprints (SUFs), as well as use cases for AI methods are described.
keywords	Conceptual design, building information modelling, knowledge graph, artificial intelligence
series	CAADRIA
email
last changed	2023/06/15 23:14

_id	ecaade2011_014
id	ecaade2011_014
authors	Langenhan, Christoph; Haß, Sebastian; Weber, Markus; Petzold, Frank; Liwicki, Marcus; Dengel, Andreas
year	2011
title	Investigating research strategies for accessing knowledge stored in semantic models
source	RESPECTING FRAGILE PLACES [29th eCAADe Conference Proceedings / ISBN 978-9-4912070-1-3], University of Ljubljana, Faculty of Architecture (Slovenia) 21-24 September 2011, pp.403-411
doi	https://doi.org/10.52842/conf.ecaade.2011.403
wos	WOS:000335665500046
summary	Current data storage and retrieval strategies usually use keywords and are not well suited to retrieving spatial configurations, the proportions of rooms or their interrelationships. Instead of using text-based research, a graphical inquiry and query system is proposed that can recognise formal structures on the one hand and concept sketches on the other. Using artificial intelligence methods and multimodal interaction, knowledge is stored in semantic models. From previously stored planning solutions in a BIM, semantic fingerprints are derived that describe their functional and topological characteristics. The search system likewise derives a semantic fingerprint from the spatial configuration of a concept sketch and compares it with fingerprints stored in the repository. Similar matches are then shown to the designer.
keywords	Knowledge management; ontology; case-based design; industry foundation classes; multimodal
series	eCAADe
email
last changed	2022/05/01 23:21

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