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 9c37
id 9c37
authors Coates P, Derix C, Krakhofer S and Karanouh A
year 2005
title Generating Architectural Spatial Configurations: two approaches using voronoi tessellations and particle systems
source Proceedings of the Generative Arts conference, Milan, 2005
summary It was one of the primary goals of the original Master’s programme in Computing and design at UEL in 1991 that we should work towards defining morphological generative processes for the conceptual design of architectural objects. These two papers offer a range of techniques which have been developed by two of this years MSc students (04-05) which show that we are getting close to this. The approaches range from computational geometric approaches (3d parametrics and voronoi diagrams) to emergent spatial organisation using agent based modelling. In many cases the resultant geometry is defined to the point where it can be transferred to advanced evaluation and fabrication systems, thus making this work sufficiently developed to begin to form a useful part in practical design processes.
keywords morphology, computational geometry, particle systems, physical simulation, voronoi diagrams
series other
type normal paper
last changed 2012/09/20 16:39

_id b04c
authors Goerger, S., Darken, R., Boyd, M., Gagnon, T., Liles, S., Sullivan, J. and Lawson, J.
year 1996
title Spatial Knowledge Acquisition from Maps and Virtual Environments in Complex Architectural Space
source Proc. 16 th Applied Behavioral Sciences Symposium, 22-23 April, U.S. Airforce Academy, Colorado Springs, CO., 1996, 6-10
summary It has often been suggested that due to its inherent spatial nature, a virtual environment (VE) might be a powerful tool for spatial knowledge acquisition of a real environment, as opposed to the use of maps or some other two-dimensional, symbolic medium. While interesting from a psychological point of view, a study of the use of a VE in lieu of a map seems nonsensical from a practical point of view. Why would the use of a VE preclude the use of a map? The more interesting investigation would be of the value added of the VE when used with a map. If the VE could be shown to substantially improve navigation performance, then there might be a case for its use as a training tool. If not, then we have to assume that maps continue to be the best spatial knowledge acquisition tool available. An experiment was conducted at the Naval Postgraduate School to determine if the use of an interactive, three-dimensional virtual environment would enhance spatial knowledge acquisition of a complex architectural space when used in conjunction with floor plan diagrams. There has been significant interest in this research area of late. Witmer, Bailey, and Knerr (1995) showed that a VE was useful in acquiring route knowledge of a complex building. Route knowledge is defined as the procedural knowledge required to successfully traverse paths between distant locations (Golledge, 1991). Configurational (or survey) knowledge is the highest level of spatial knowledge and represents a map-like internal encoding of the environment (Thorndyke, 1980). The Witmer study could not confirm if configurational knowledge was being acquired. Also, no comparison was made to a map-only condition, which we felt is the most obvious alternative. Comparisons were made only to a real world condition and a symbolic condition where the route is presented verbally.
series other
last changed 2003/04/23 13:50

_id f9bd
authors Amor, R.W.
year 1991
title ICAtect: Integrating Design Tools for Preliminary Architectural Design
source Wellington, New Zealand: Computer Science Department, Victoria University
summary ICAtect is a knowledge based system that provides an interface between expert systems, simulation packages and CAD systems used for preliminary architectural design. This thesis describes its structure and development.The principal work discussed in this thesis involves the formulation of a method for representing a building. This is developed through an examination of a number of design tools used in architectural design, and the ways in which each of these describe a building.Methods of enabling data to be transferred between design tools are explored. A Common Building Model (CBM), forming the core of the ICAtect system, is developed to represent the design tools knowledge of a building. This model covers the range of knowledge required by a large set of disparate design tools used by architects at the initial design stage.Standard methods of integrating information from the tools were examined, but required augmentation to encompass the unusual constraints found in some of the design tools. The integration of the design tools and the CBM is discussed in detail, with example methods developed for each type of design tool. These example methods provide a successful way of moving information between the different representations. Some problems with mapping data between very different representations were encountered in this process, and the solutions or ideas for remedies are detailed. A model for control and use of ICAtect is developed in the thesis, and the extensions to enable a graphical user interface are discussed.The methods developed in this thesis demonstrate the feasibility of an integrated system of this nature, while the discussion of future work indicates the scope and potential power of ICAtect.
series other
last changed 2003/04/23 13:14

_id 019c
authors Beyer, Horst A. and Streilein, André
year 1991
title Data Generation for CAAD with Digital Photogrammetry
source Computer Aided Architectural Design Futures: Education, Research, Applications [CAAD Futures ‘91 Conference Proceedings / ISBN 3-528-08821-4] Zürich (Switzerland), July 1991, pp. 583-594
summary The rapid advances in sensor technology and processing hardware make the development of a Digital Photogrammetric System for Architectural Photogrammetry possible. This system is able to acquire images with sufficient resolution for Architectural Photogrammetry. Geometric and topologic information for a CAAD-System can be derived with manual and/or semi-automated methods. This paper describes the current status of such a system which is under development at the Institute of Geodesy and Photogrammetry in cooperation with the Chair of Architecture and CAAD, both at the Swiss Federal Institute of Technology in Zurich.
series CAAD Futures
last changed 2003/11/21 14:16

_id ea6b
authors Boeve, Eddy
year 1991
title Modelling Interaction Tools in the Views Architecture IV. Design Tools
source First Moscow International HCI'91 Workshop Proceedings 1991 p.183
summary Views is a user-interface system in which the user interface is a layer above applications, guaranteeing consistency of the interface, and with a data-layer implementing external object representations, allowing exchange of objects between applications without loss of structure. Although Views offers an architecture to deal with user-interface aspects on a high level, in this report is shown that also low level interaction can be modelled with the architecture provided.
series other
last changed 2002/07/07 14:01

_id 8f20
authors Hannus, Matti, Jarvinen, Heikki and Astrom, Gunnar
year 1991
title Exchange of Product Data of Prefabricated Concrete Structures
source The Computer Integrated Future, CIB W78 Seminar. September, 1991. Unnumbered : ill
summary As part of efforts to adopt manufacturing automation in a scattered organizational structure the Finnish precast concrete industry has initiated the development of a number of solutions for data exchange. Guidelines concerning various aspects of using computers in the design/manufacturing process were defined in a manual which was widely distributed to involved parties. Standardized neutral file formats for data exchange between dissimilar computer systems were developed for three kinds of data: 1) drawings, 2) tables (e.g. bills of materials) and 3) product model-based data. Translator programs were developed for a number of common CAD-systems as well as a set of software tools to the users of standardized exchange files and software developers. The result of these developments have been widely adopted by fabricators, designers and software developers
keywords CAD, communication, product modeling, standards
series CADline
last changed 2003/06/02 11:58

_id 2a0e
authors Jacobs, Stephen Paul
year 1991
title The CAD Design Studio: 3D modeling as a fundamental design skill
source McGraw-Hill, New York
summary Until now, books on CAD aimed at architects have addressed the use of computer-aided design and drafting as a recording tool, a faster means of producing and storing finished working drawings-and not as an adjunctive creative tool for the design process. Without being software specific, this book will guide the professional and student architect and graphics designer in how to use the computer as an electronic modelling tool, exploring graphic and geometric forms and systems with the freedom and speed of the computer. The reader will be led through a progression of design exercises and design problems, learning how to come up with multiple solutions to a given program. Beautifully illustrated throughout, including 10 four-color CAD drawings!
series other
last changed 2003/04/23 13:14

_id 2d77
authors Korte, Michael
year 1991
title CASOB - Simultaneous Surveying and Drawing
source Experiences with CAAD in Education and Practice [eCAADe Conference Proceedings] Munich (Germany) 17-19 October 1991
summary Accurate planning and economical building within an existing structure require a complex building analysis based upon detailed scale plans. Work has shown unsatisfactory of measuring tools: (1.) Recording of measurements with meterrule and measuring tape often results in mistakes and wasted time. Since the data is not digitalized the measurements cannot be used by a CAD system. (2.) Commercially available CAD software is made only for new planning but not for planning with an existing structure. Up till now architects who predominantly work with existing structures were not able to take advantage of products in the software- and hardware market which would satisfy their needs. The problems already begin with the search for appropriate tools for the surveying of existing structures and the simplest possible transfer of the data to a CAD System. There is an increased demand for quality surveying of existing structures. In Germany, far more than 60 % of all construction planning is related to existing structures. Due to the special situation in the five new states this percentage will grow significantly. Other countries will find themselves in a similar situation. A large number of precise and analytical surveys of existing structures will be needed in a relative short time. Time pressure and stress factors at construction sites call for quality planning and economical construction which can only be accomplished with reliable and exact surveying of structures. Frustrating experiences in the field have led me to develop systems for the surveying of existing structures. With CASOB (Computer Aided Surveying of Buildings) we have a tool today that simultaneously surveys and creates a CAD compatible drawing.

series eCAADe
last changed 1998/08/23 07:54

_id 4196
authors Pols, Albert A.J.
year 1991
title Conceptual Modelling of Building Assemblies : Bridging the Gap Between Building Data and Design Integrity
source The Computer Integrated Future, CIB W78 Seminar. September, 1991. Unnumbered : ill. includes bibliography
summary Improved models and methods for building representation are needed for more effective support of design integrity checking and control. A 'generic' object-oriented approach to product modelling allows multiple design representations to be described as different views of a common, gradually evolving building product model. The product model provides the capability to generate, in successive design iterations, a coherent description of the form, structure and dimensions of the building and its assemblies and components. Associated technological and administrative data can be included in or associated with the product description
keywords product modeling, building, database, semantics, integration
series CADline
last changed 2003/06/02 11:58

_id f14c
authors Sariyildiz, Sevil
year 1991
title Conceptual Design by Means of Islamic-Geometric-Patterns within a CAAD-Environment
source Delft University of Technology
summary The starting point in this research was to develop a 3D grammar theory on top of existing 2D Islamic-geometric-patterns, trying to rescue their fundamental geometry contents to be applied in contemporary architecture without compromising any architectural style. As it is self evident the architectural design process consists of clearly distinct stages namely conceptual design, materialisation and further completion. A this conceptual stage the innovative item of the research deals with pattern grammars on 3D complex geometrical patterns, considering them as polyhedra and polytopes, for their use as an underlayer to a concept design, like architects use 2D rectangular and triangular grids by the conventional way. Handling these complex 3D patterns requires a special environment which is possible with CAAD. Within the CAAD environment, the handling of these complex patterns is easily done by means of 3D tools, because the 3D tools permit the user to make any possible manipulations and geometrical transformations in an easier way in space. To a geometrical patterns, there is some attention paid during the last 50 years by some scholars. The most complex geometrical patterns are highly developed in Islamic architecture because it is forbidden in Muslim religion to use man's portraits or sculptures of human beings in the religious buildings. All these approaches to complex patterns are analysed and studied as 2D elements. The question was how could we consider them in 3rd dimensions and use them instead of 2D underlayer, as 3D underlayers in the conceptual phase of the CAAD design. Pattern grammar is a generally employable aid (underlying pattern) for conceptual and material designs. On the basis of rules of symmetry and substitution, ordering principles have been worked out, which can be used for formal design methods as well as detailing systems (e.g. modular coordination). Through the realization of a pattern grammar a wider range of underlying patterns can be offered and a choice from these can be made in a more fundamental manner. At a subsequent stage the collection of "empty boxes" can be filled with (architectural) elements in such a way that another option is created between either filling up the boxes completely, filling them partly, or filling them in such a way that they overflow. It is self-evident that underlying patterns can also be used for details and decoration in a design. Concerning the materialisation of the concept design, within the 3D CAAD environment, substitution methods are partially developed. Further theoretical developments concerning the materialisation phase constantly backed up through feed-back with specialist matters (such as e.g. by means of expert systems, decision-support systems), must be worked out. As feed-back of the research, the possibilities of the design with 3D patterns have been tested and the procedures are explained. (*) Working with 3D patterns gives a designer more inspirations to develop new ideas and new concepts and gives the opportunity to handle the complexity. (*) The formal, structural and symmetrical qualities of geometrical patterns has a positive influence on the industrialisation of the building components. (*) Working with 3D tools which are able to handle complex geometry have a result because of the accuracy of the information, that there has hardly been a mistake made during the preparation and the assembly of the building components. This has also positive results concerning the financial aspects of the building process.
series thesis:PhD
last changed 2003/02/12 21:37

_id ddss9483
id ddss9483
authors Shyi, Gary C.-W. and Huang, Tina S.-T.
year 1994
title Constructing Three-Dimensional Mental Models from Two-Dimensional Displays
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary In the present study we adopted the tasks and the experimental procedures used in a recent series of study by Cooper (1990, 1991) for the purpose of examining how we utilized two-dimensional information in a line-drawing of visual objects to construct the corresponding three-dimensional mental structure represented by the 2-D displays. We expected that the stimulus materials we used avoided some of the problems that Cooper's stimuli had, and with that we examined the effect of complexity on the process of constructing 3-D models from 2-D displays. Such a manipulation helps to elucidate the difficulties of solving problems that require spatial abilities. We also investigated whether or not providing information representing an object viewed from different standpoints would affect the construction of the object's 3-D model. Some researchers have argued that 3-D models, once constructed, should be viewer-independent or viewpoint-invariant, while others have suggested that 3-D models are affected by the viewpoint of observation. Data pertinent to this issue are presented and discussed.
series DDSS
last changed 2003/08/07 14:36

_id b5be
authors Stok, Leon
year 1991
title Architectural synthesis and optimization of digital systems
source Eindhoven University of Technology
summary High level synthesis means going from an functional specification of a digits-system at the algorithmic level to a register transfer level structure. Different appli-cations will ask for different design styles. Despite this diversity in design styles many tasks in the synthesis will be similar. There is no need to write a new synthesis system for each design style. The best way to go seems a decomposition of the high level synthesis problems in several well defined subproblems. How the problem is decomposed depends heavily on a) the type of network architecture chosen, b) the constraints applied to the design and c) on the functional description itself. From this architecture style, the constraints and the functional description a synthesis scheme can be derived. Once this scheme is fixed, algorithms can be chosen which fit into this scheme and solve the subproblems in a fast and, when possible, optimal way. To support such a synthesis philosophy, a framework is needed in which all design information can be stored in a unique way during the various phases of the design process. This asks for a design data base capable of handling all design information with a formally defined interface to all design tools. This thesis gives a formal way to describe both the functional representation, the register transfer level structure and the controller and the relations between all three of them. Special attention has been paid to the efficient representation of mutual exclusive operations and array accesses. The scheduling and allocation problems are defined as mappings between these formal representations. Both the existing synthesis algorithms and the new algorithms described in this thesis fit into this framework. Three new allocation algorithms are presented in this thesis: an algorithm for optimal register allocation in cyclic data flow graphs, an exact polynomial algorithm to do the module allocation and a new scheme to minimize the number of interconnections during all stages of the data path allocation. Cyclic data flow graphs result from high level behavioral descriptions that contain loops. Algorithms for register allocation in high level synthesis published up till now, only considered loop free data flow graphs, When these algorithms are applied to data flow graphs with loops, unnecessary register transfer operations are introduced. A new algorithm is presented that performs a minimal register allocation and eliminates all superfluous register transfer operations. The problem is reformulated as a multicommodity network flow problem for which very efficient solutions exist. Experiments on a benchmark set have shown that in all test cases all register transfers could be eliminated at no increase in register cost. Only heuristic algorithms appeared in literature to solve the module allocation problem. The module allocation problem is usually defined as a clique cover problem on a so-called module allocation graph. It is shown that, under certain conditions, the module allocation graph belongs to the special class of comparability graphs. A polynomial time algorithm can optimally find a clique cover of such a graph. Even when interconnect weights are taken into account, this can be solved exactly. This problem can be transformed into a maximal cost network flow problem, which can be solved exactly in polynomial time. An algorithm is described which solves the module allocation problem with interconnect weights exactly, with a complexity O(kn2), where n is the number of operations In previous research, interconnection was optimized when the module allocation for the operations and the register allocation for the variables already had been done. However, the amount of multiplexing and interconnect are crucial factors to both the delay and the area of a circuit. A new scheme is presented to minimize the number of interconnections during the data path allocation. This scheme first groups all values based on their read and write times. Values belonging to the same group can share a register file. This minimizes the number of data transfers with different sources and destinations. Secondly, registers are allocated for each group separately. Finally the interconnect allocation is done. During the interconnect allocation, the module allocation is determined. The value grouping is based on edge coloring algorithms providing a sharp upper bound on the number of colors needed two techniques: splitting read and write phases of values and introducing serial (re-)write operations for the same value, make that even more efficient exact edge coloring algorithms can be used. It is shown that when variables are grouped into register files and operations are assigned to modules during the interconnection minimization, significant savings (20%) can be obtained in the number of local interconnections and the amount of global interconnect, at the expense of only slightly more register area.
keywords Digital Systems; Digital Systems
series thesis:PhD
last changed 2003/02/12 21:37

_id 83b4
authors Tan, Milton
year 1991
title Themes for Schemes: Design Creativity as the Conceptualization, Transformation, and Representation of Emergent Forms
source Harvard University, Graduate School of Design
summary Architects, graphic designers, and others frequently develop designs by picking out and transforming subshapes of two-dimensional or three-dimensional shapes. Shape grammars formalize this aspect of design by specifying rules of the form $a /to b$: the left-hand side a describes a type of subshape that may be picked out, while the right-hand side b describes what that type of subshape may become. Designs in the language specified by a shape grammar are derived by recursively applying the shape transformation rules to a starting shape. To apply a shape-transformation rule automatically, a computer system, must have the capacity to recognize instances of the type of subshape specified on the left-hand side of the rule. Sometimes such instances are explicitly input by the designer, and explicitly represented in a data structure: in this case, recognition is a relatively straightforward task. But there may also be 'emergent' instances that were not explicitly input, and are only indirectly represented in the data structure. These emergent instances are potentially numerous, and may be extremely difficult to discover. This thesis focuses on mechanisms for picking out and transforming subshapes. The first three chapters place the issue in its broadest context by arguing that different designers--bringing different knowledge and attitudes to the task--will pick out and pay attention to different subshapes in a drawing. This contention is supported by introducing some of the relevant literature on perception, problem-solving, and creativity. Chapter 4 introduces shape grammars to provide a more formal framework for investigating this topic. Chapter 5 describes the properties and limitations of Topdown--a computer program which supports design by applying the rules of a shape grammar, but does not provide for recognition of emergent subshapes. Chapter 6 introduces ECART, a computer program which supports efficient recognition and transformation of emergent subshapes, and demonstrates how its performance transcends that of Topdown. Examination of the results produced by ECART suggest that a designer's conceptual filter--the repertoire of subshape types that he or she can recognize in a drawing--plays a crucial role in the development of design ideas.  
keywords Computer Graphics; Computer Software; Development
series thesis:PhD
last changed 2003/02/12 21:37

_id 4133
authors Van Nederveenm, G.A. and Tolman, F.P.
year 1991
title Modelling Multiple Views on Buildings
source The Computer Integrated Future, CIB W78 Seminar. September, 1991. Unnumbered : ill. includes a short bibliography
summary The building practice is characterized by its loose organization of the different participants, each of whom performs a specific role in a building project and has a specific view on the building project data. When modelling building information it is useful to base the structure of a building model on these views. This can be done by the use of aspect models. This paper presents an approach in which aspect models are used to store view-specific information. The approach is illustrated with an outline of a building reference model. The building reference model consists of a general kernel and view-dependent aspect models. This model is first worked out for one decomposition level, the space unit level. After that the model is extended with other decomposition levels
keywords product modeling, building, database, integration, construction, practice, management
series CADline
last changed 2003/06/02 11:58

_id ae74
authors Zamanian, Kiumarse and Fenves, Steven J.
year 1991
title A Framework for Modeling and Communicating Abstractions of Constructed Facilities
source Computer Aided Architectural Design Futures: Education, Research, Applications [CAAD Futures ‘91 Conference Proceedings / ISBN 3-528-08821-4] Zürich (Switzerland), July 1991, pp. 245-260
summary Management of information about constructed facilities in a computer-integrated environment is a challenging task because this information evolves from, and is viewed by many different disciplines throughout the facility's lifecycle. We present a general framework for modeling and reasoning about the components of a constructed facility at any desired level of abstraction, and communicating the information across disciplines at any stage in the lifecycle of the facility, as well as across stages. Our research has been motivated by an objective similar to that of STEP, which intends to establish an international protocol for the exchange of CAD data. The descriptive information about a facility is divided into two separate but linked groups: spatial and non-spatial attributes. The primary emphasis of this research is to provide a single, uniform representation and reasoning paradigm for dealing with the various spatial abstractions of the facility components regardless of their geometric dimensionalities.
series CAAD Futures
last changed 1999/11/23 18:42

_id ecaade2014_163
id ecaade2014_163
authors Ioannis Chatzikonstantinou
year 2014
title A 3-Dimensional Architectural Layout Generation Procedure for Optimization Applications : DC-RVD
source Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 1, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 287-296
wos WOS:000361384700028
summary A procedure for generating 3-dimensional spatial configurations for optimization applications, termed Dimension Constrained Rectangular Voronoi Diagram (DC-RVD), is presented in this paper. The procedure is able to generate a non-overlapping configuration of spatial units in 3-dimensional space, given a string of real values. It constitutes an extension and adaptation of the Rectangular Voronoi Diagram generating procedure, found in the work of Choi and Young (1991). An extensive description of the procedure, with the relevant pseudocode is included in the paper. The procedure is tested in a stochastic optimisation-based decision support environment. Testing is done using a case study of a medium-sized family house. The result indicate promising performance.
keywords Optimization; layout; representation
series eCAADe
last changed 2016/05/16 09:08

_id 218a
authors Ervin, Stephen M.
year 1991
title Intra-Medium and Inter-Media Constraints
source Computer Aided Architectural Design Futures: Education, Research, Applications [CAAD Futures ‘91 Conference Proceedings / ISBN 3-528-08821-4] Zürich (Switzerland), July 1991, pp. 365-380
summary Designers work with multiple representations in a variety of media to express and explore different kinds of knowledge. The advantages of multi-media in design are well- known, and exemplified by the current interest in 'hyper-media' approaches to knowledge exploration. A principal activity in working between views in one medium (e.g. plan, section and perspective drawings), or between different representations (diagrams, maps, graphs, pictures, e.g.) is extrapolating decisions made in one view or medium over to others, so that some consistency is maintained, and implications can be explored. The former kind of consistency maintenance (intra-medium) is beginning to be well understood techniques for constraint expression., satisfaction and propagation are starting to appear in 'smart CAD' systems. The latter kind of consistency maintenance inter-media.) is different, less well understood, and will require new mechanisms for constraint management and exploration. Experiments, hypotheses, and solutions in this direction will be central to any effort that seeks to explain, emulate or assist the integrative, synthetic reasoning that characterizes environmental design and planning. This paper examines some of the characteristics and advantages of intra and inter-media constraint exploration, describes a prototype "designers workstation" and some experiments in the context of landscape planning and design, and lays out some directions for development of these ideas in future computer aided design systems.
series CAAD Futures
last changed 1999/04/07 10:03

_id 0e34
authors Rumbaugh J., Blaha M., Premerlani W., Eddy F., Lorenson W.
year 1991
title Object-Oriented Modelling and Design
source Englewood Cliffs, NJ: Prentice Hall
summary Object-oriented modelling and design promote better understanding of requirements, cleaner designs and more maintainable systems. Often, books on related subjects rely on programming and coding, forcing readers to think in terms of the computer, and not the application. "Object-oriented Modeling and Design" emphasizes that object-oriented technology is more that just a way of programming. It applies techniques to the entire software development cycle. This volume presents a new object-oriented software development methodology - from analysis, through design, to implementation. Key features of the book include a focus on high-level, front-end conceptual processes of analysis and design, rather than just on the low-level, back-end implementation steps of programming; coverage of the entire development life cycle - analysis, design, implementation without a change of notation at each stage; a presentation of graphical notation and methodology independent of any particular programming language; case studies of industrial object-oriented applications developed by the authors; and examples and exercises that bring out fine points, summary lists of concepts and methodology steps, and almost 300 diagrams.
series other
last changed 2003/04/23 13:14

_id 2560
authors Alkhoven, Patricia
year 1991
title The Reconstruction of the Past: The Application of New Techniques for Visualization and Research in Architectural History
source Computer Aided Architectural Design Futures: Education, Research, Applications [CAAD Futures ‘91 Conference Proceedings / ISBN 3-528-08821-4] Zürich (Switzerland), July 1991, pp. 549-566
summary This paper focuses on the visualization of historical architecture. The application of new Computer-Aided- Architectural-Design techniques for visualization on micro computers provides a technique for reconstructing and analyzing architectural objects from the past. The pilot project describes a case study in which the historical transformation of a town will be analyzed by using three- dimensional CAD models in combination with bitmap textures. The transformation of the historic town will be visualized in a space-time computer model in which bitmap textures enable us to display complex and relatively large architectural objects in detail. This three-dimensional descriptive model allows us to survey and analyze the history of architecture in its reconstructed context. It also provides a medium for researching the dynamics of urban management, since new combinations and arrangements with the individual architectural objects can be created. In this way, a new synthesis of the graphic material can reveal typologies and the architectural ordering system of a town.
keywords 3D City modeling
series CAAD Futures
last changed 2003/11/21 14:15

_id 0ab2
authors Amor, R., Hosking, J., Groves, L. and Donn, M.
year 1993
title Design Tool Integration: Model Flexibility for the Building Profession
source Proceedings of Building Systems Automation - Integration, University of Wisconsin-Madison
summary The development of ICAtect, as discussed in the Building Systems Automation and Integration Symposium of 1991, provides a way of integrating simulation tools through a common building model. However, ICAtect is only a small step towards the ultimate goal of total integration and automation of the building design process. In this paper we investigate the next steps on the path toward integration. We examine how models structured to capture the physical attributes of the building, as required by simulation tools, can be used to converse with knowledge-based systems. We consider the types of mappings that occur in the often different views of a building held by these two classes of design tools. This leads us to examine the need for multiple views of a common building model. We then extend our analysis from the views required by simulation and knowledge-based systems, to those required by different segments of the building profession (e.g. architects, engineers, developers, etc.) to converse with such an integrated system. This indicates a need to provide a flexible method of accessing data in the common building model to facilitate use by different building professionals with varying specialities and levels of expertise.
series journal paper
last changed 2003/05/15 19:22

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