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	0642
authors	Eastman, Charles M.
year	1989
title	Why Are We Here and Where We are Going: The Evolution of CAD
doi	https://doi.org/10.52842/conf.acadia.1989.009
source	New Ideas and Directions for the 1990’s [ACADIA Conference Proceedings] Gainsville (Florida - USA) 27-29 October 1989, pp. 9-26
summary	This paper reviews architectural CAD in terms of its current use, development and status within the U.S. The characteristics of a new generation of architectural CAD system, called building modeling, are outlined. Criteria are developed for the evaluation of CAD systems that support building modeling. Some of the opportunities for universities growing out of building modeling are reviewed, including pedagogical implications and opportunities for research.
series	ACADIA
email
last changed	2022/06/07 07:55

_id	e892
authors	Kacmar, Charles John
year	1990
title	PROXHY: a Process -Oriented Extensible Hypertext Architecture
source	Texas A&M University
summary	This research describes a new architecture for hypertext environments. The architecture merges the process, object-oriented, and hypertext models to provide hypertext services to object-based, distributed, application components. Through this architecture, applications are integrated to form a comprehensive hypertext computing environment, allowing links to connect applications or objects in different applications. The architecture separates hypertext and application functionality so that multiple applications can use the facilities of a common hypertext layer. The design of the architecture is such that components can be extended or tailored in order to support future applications, multimedia objects, or the needs of specific applications or users. The process-based, object-oriented framework allows objects of arbitrary complexity to live and interact in a hypertext world. Additionally, the protocol and facilities which support component interaction provide location transparency, arbitrary object granularity, and parallel computation over a network. This dissertation provides a conceptual model of hypertext and a general architecture for hypertext system construction. Related literature from object-oriented programming, operating systems, multimedia applications, and database is discussed in terms of the architecture. A hypertext data model, computational model, and hypertext system taxonomy are used to discuss the capabilities of current hypertext systems. Interaction scenarios are provided in order to illustrate object interaction and the distribution of work among the components of the architecture. A prototype system, implemented to demonstrate the feasibility of the architecture, is discussed. The prototype illustrates all aspects of the architecture including distributed application and hypertext components, cross-application linking, and anchors acting as proxy objects for applications. Application scenarios, problems and limitations, and future research issues provide an understanding of the power of the architecture and its potential for impacting the design of next-generation hypertext systems.
series	thesis:PhD
last changed	2003/02/12 22:37

_id	4ac0
authors	Balachandran, M. B. and Gero, John S.
year	1990
title	Knowledge Engineering and Multicriteria Optimization
source	Berlin: Springer-Verlag, 1990. pp. 115-147. CADLINE has abstract only
summary	Many aspects of optimization, including problem formulation, algorithm selection and the interpretation of results require human judgment and experience, and are traditionally carried out by humans. Recently developed knowledge-based system methodologies now allow us to incorporate different forms of knowledge required to carry out such non-numeric tasks. The role and effectiveness of knowledge-based methodologies in multicriteria optimization are described and illustrated with examples
keywords	design, multicriteria, optimization, knowledge base
series	CADline
email
last changed	2003/06/02 13:58

_id	e5e2
authors	Coyne, R.D., Rosenman, M.A. and Radford, A.D. (et.al.)
year	1990
title	Knowledge Based Design Systems
source	576 p. : ill Reading, Mass.: Addison-Wesley, 1990. includes bibliographies and index.
summary	This book describes the bases, approaches, techniques, and implementations of knowledge-based design systems, and advocates and develops new directions in design systems generally. A formal model of design coupled with the notion of prototypes provides a coherent framework for all that follows and is a platform on which a comprehension of knowledge-based design rests. The book is divided into three parts. Part I, Design, examines and describes design and design processes, providing the context for the remainder of the book. Part II, Representation and Reasoning, explores the kinds of knowledge involved in design and the tools and techniques available for representing and controlling this knowledge. It examines the attributes of design that must be described and the ways in which knowledge-based methods are capable of describing and controlling them. Part III, Knowledge-Based Design, presents in detail the fundamentals of the interpretation of design, including the role of expert systems in interpreting existing designs, before describing how to produce designs within a knowledge-based environment. This part includes a detailed examination of design processes from the perspective of how to control these processes. Within each of these processes, the place and role of knowledge is presented and examples of knowledge-based design systems given. Finally, the authors examine central areas of human design and demonstrate what current knowledge-based design systems are capable of doing now and in the future
keywords	knowledge base, design process, representation, CAD, AI, prototypes, expert systems
series	CADline
email
last changed	2003/05/17 10:13

_id	2f1a
authors	Dabney, M.K., Wright, J.C. and Sanders, D.H.
year	1999
title	Virtual Reality and the Future of Publishing Archaeological Excavations: the multimedia publication of the prehistoric settlement on Tsoungiza at Ancient Nemea
source	New York: The Metropolitan Museum of Art
summary	The Nemea Valley Archaeological Project is a study of settlement and land use in a regional valley system in Greece extending from the Upper Paleolithic until the present. Active field research was conducted by four teams between 1981 and 1990. The first component was a regional archaeological survey. Second, and closely related to the first, was a social anthropological study of modern settlement and land use. Next was a team assigned to excavate the succession of prehistoric settlements of Ancient Nemea on Tsoungiza. Last, historical ecologists, a palynologist, and a geologist formed the environmental component of the research. As a result of advances in electronic publishing, plans for the final publication of the Nemea Valley Archaeological Project have evolved. Complete publication of the excavation of the prehistoric settlements of Ancient Nemea on Tsoungiza will appear in an interactive multimedia format on CD/DVD in Fall 2000. This project is planned to be the first electronic publication of the American School of Classical Studies at Athens. We have chosen to publish in electronic format because it will meet the needs and interests of a wider audience, including avocational archaeologists, advanced high school and college students, graduate students, and professional archaeologists. The multimedia format on CD/DVD will permit the inclusion of text, databases, color and black-and-white images, two and three-dimensional graphics, and videos. This publication is being developed in cooperation with Learning Sites, Inc., which specializes in interactive three-dimensional reconstructions of ancient worlds http://www.learningsites.com. The Nemea Valley Archaeological Project is particularly well prepared for the shift towards electronic publishing because the project's field records were designed for and entered in computer databases from the inception of the project. Attention to recording precise locational information for all excavated objects enables us to place reconstructions of objects in their reconstructed architectural settings. Three-dimensional images of architectural remains and associated features will appear both as excavated and as reconstructed. Viewers will be able to navigate these images through the use of virtual reality. Viewers will also be able to reference all original drawings, photographs, and descriptions of the reconstructed architecture and objects. In this way a large audience will be able to view architectural remains, artifacts, and information that are otherwise inaccessible.
series	other
last changed	2003/04/23 15:14

_id	0faa
authors	Duelund Mortensen, Peder
year	1991
title	THE FULL-SCALE MODEL WORKSHOP
source	Proceedings of the 3rd European Full-Scale Modelling Conference / ISBN 91-7740044-5 / Lund (Sweden) 13-16 September 1990, pp. 10-11
summary	The workshop is an institution, available for use by the public and established at the Laboratory of Housing in the Art Academy's school of Architecture for a 3 year trial period beginning April 1985. This resumé contains brief descriptions of a variety of representative model projects and an overview of all projects carried out so far, including the pilot projects from 1983 and planned projects to and including January 1987. The Full Scale Model Workshop builds full size models of buildings, rooms and parts of buildings. The purpose of the Full Scale Model Workshop is to promote communication among building's users. The workshop is a tool in an attempt to build bridges between theory and practice in research, experimentation and communication of research results. New ideas and experiments of various sorts can be tried out cheaply, quickly and efficiently through the building of full scale models. Changes can be done on the spot as a planned part of the project and on the basis of ideas and experiments achieved through the model work itself. Buildings and their space can thus be communicated directly to all involved persons, regardless of technical background or training in evaluation of building projects.
keywords	Full-scale Modeling, Model Simulation, Real Environments
series	other
type	normal paper
more	http://info.tuwien.ac.at/efa
last changed	2004/05/04 15:23

_id	3207
authors	Emmerik, Maarten J.G.M. van
year	1990
title	Interactive design of parameterized 3D models by direct manipulation
source	Delft University of Technology
summary	The practical applicability of a computer-aided design system is strongly influenced by both the user interface and the internal model representation. A well designed user interface facilitates the communication with the system by offering an intuitive environment for for specification and representation of model information. An internal model representation, capable of storing geometric, topological and hierarchical dependencies between components in a model, increases the efficiency of the system by facilitating modification and elaboration of the model during the different stages of the design process. The subject of this thesis is the integration of a high level parameterized model representation with direct manipulation interface techniques for the design of three-dimensional objects. A direct manipulation interface enables the user to specify a model by interaction on a graphical representation, as an alternative for an abstract and error-prone apha-numerical dialogue style. A high level model representation is obtained by using a procedural modeling language with general purpose control structures, including arithmetic and logical expressions, repetition, conditionals, functions and procedures, and dedicated data types such as coordinate systems, geometric primitives and geometric constraints. The language interpreter is interconnected with a graphical interface, an incremental constraint solver and a geometrical modeler, using visual programming techniques. The developed techniques are implemented in a modeling system called GeoNode. The system incorporates paradigms of object-oriented design, with respect to both the user interface and to the system implementation. The applicability of the presented techniques is illustrated by examples in application domains such as solid modeling, kinematic analysis, feature modeling and top-down design.
keywords	CAD/CAM
series	thesis:PhD
last changed	2003/02/12 22:37

_id	242f
authors	Goldman, Glenn and Zdepski, M. Stephen
year	1990
title	Image Sampling
doi	https://doi.org/10.52842/conf.acadia.1990.021
source	From Research to Practice [ACADIA Conference Proceedings] Big Sky (Montana - USA) 4-6 October 1990, pp. 21-28
summary	Analogous to music sampling, in which sounds from the environment are recorded, distorted and used in unique ways to create music, "image sampling" is the visual equivalent of a sound bite used to create new visual forms, textures, patterns and types of architecture. Through the use of image sam ling, a designer can accurately record and digitize images from the existing visual world: rom the physical (built or natural) context of the site, from history (a specific building " or a significant architectural monument) or from previous work produced by the designer. The digital scanning process makes design information equal and uniform, as it converts all images to dot patterns of varying color. As a result the image can be transformed through numeric operations (even when the algorithms are transparent to the end user). The recorded images can therefore be fragmented, combined, distorted, duplicated, tweened, or subjected to random automated operations. Because computer images are digital, they facilitate modification and transformation, unlike their analog counterparts. Merging video and image processing capabilities with three-dimensional modeling permits the designer to collage visual information into new and readily editable architectural proposals. Combining image samples into new architectural concepts expands the scope of potentials available to the architect and also raises fundamental questions about issues of originality, creativity, authenticity, and the nature of the design process itself. What is original work, created by the designer, and what is merely re-used? The discussion of new digital imaging eventually leads to questions about design theory and ethics, in addition to those associated with computer technology and architectural form. As one works in any new medium, including the digital environment, many questions are raised about its impacts on design. Much of what is presented in this paper are early speculations on the implications of the digital technology and its influence on architecture.
series	ACADIA
email
last changed	2022/06/07 07:51

_id	ab63
authors	Gross, Mark D.
year	1990
title	Relational Modeling: A Basis for Computer-Assisted Design
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 123-136
summary	Today's computer assisted design (CAD) systems automate traditional ways of working with tracing paper and pencil, but they cannot represent the rules and relationships of a design. As hardware becomes faster and memory less expensive, more sophisticated fundamental software technologies will be adopted. This shift in the basis of CAD will provide powerful capabilities and offer new ways to think about designing. Recently parametric design, a technique for describing a large class of designs with a small description in code, has become a focus of attention in architectural computing. In parametric CAD systems, design features are identified and keyed to a number of input variables. Changes in the input values result in variations of the basic design. Based on conventional software technologies, parametric design has been successfully applied in many design domains including architecture and is supported by several commercial CAD packages. A weakness of parametric techniques is the need to predetermine which properties are input parameters to be varied and which are to be derived. Relational modeling is a simple and powerful extension of parametric design that overcomes this weakness. By viewing relations as reversible rather than one-way, any set of properties can be chosen as input parameters. For example, a relational model that calculates the shadow length of a given building can also be used to calculate the building height given a desired shadow length. In exercising a relational model the designer is not limited to a pre-selected set of input variables but can explore and experiment freely with changes in all parts of the model. Co is a relational modeling environment under development on the Macintosh-II computer, and Co-Draw, a prototype CAD program based on Co. Co's relationaI engine and object-oriented database provide a powerful basis for modeling design relations. Co-Draw's interactive graphics offer a flexible medium for design exploration. Co provides tools for viewing and editing design models in various representations, including spreadsheet cards, tree and graph structures, as well as plan and elevation graphics. Co's concepts and architecture are described and the implications for design education are discussed.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	c0a3
authors	Harfmann, Anton C. and Chen, Stuart S.
year	1989
title	Component Based Computer Aided Learning for Students of Architecture and Civil Engineering
doi	https://doi.org/10.52842/conf.acadia.1989.193
source	New Ideas and Directions for the 1990’s [ACADIA Conference Proceedings] Gainsville (Florida - USA) 27-29 October 1989, pp. 193-208
summary	The paper describes the methodology and the current efforts to develop an interdisciplinary computer aided learning system for architects and civil engineers. The system being developed incorporates a component oriented relational database with an existing interactive 3-dimensional modeling system developed in the School of Architecture and Planning at SUNY Buffalo. The software will be used in existing courses in architecture and civil engineering as a teaching aid to help students understand the complex 3-dimensional interrelationships of structural components. Initial implementation has focused on the modeling of the components and assemblies for a lowrise steel frame structure. Current implementation efforts are focusing on the capability to view connections in various ways including the ability to "explode" a connection to better understand the sequence of construction and load paths. Appropriate codes, limit states of failure and specific data will be linked to each specific component in an expert system shell so that the system can offer feedback about a student generated connection and perhaps offer other possible connections a library of standard connections. Future expansion of the system will include adding other "systems" of a building, such as mechanical, electrical, plumbing, enclosure etc., to help students visualize the integration of the various parts.
series	ACADIA
email
last changed	2022/06/07 07:49

_id	acadia06_496
id	acadia06_496
authors	Jemtrud, Michael
year	2006
title	Eucalyptus: User Controlled Lightpath Enabled Participatory Design Studio
doi	https://doi.org/10.52842/conf.acadia.2006.496
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 496-509
summary	A new notion of participation is at stake with advances in technologically mediated work environments. The digitally mediated e-design studio has been around since the mid-1990’s and has been employed in various forms in disciplines including architecture/engineering/construction (AEC), industrial design, and the automotive industry. Insufficient bandwidth and insufficiently powerful, crudely coordinated tools resulted in distributed task-based modes of collaboration that did not allow full participation by members of the distributed design team. At the very least, the present “second generation” network severely limits the applications, tools, and modes of communication that can be used in data and visualization intense design scenarios. The emergence of Service Oriented Architectures and User-Controlled LightPaths (“intelligent infrastructure”) herald the beginning of a new age where fully participatory multi-site design may become possible. The networks, visualization & communication tools, Service Oriented Architecture & Web Services, work protocols, and physical site designs of the Participatory Design Studio (PDS) being developed by the authors will constitute one of the first working examples of this future. This paper will briefly outline the “mise en scène” or staging of the technical configuration of the Eucalyptus project; observations and results from the creative activity of the PDS in the context of two case studies; and speculate on the implications for design activity, pedagogy, and a more robust mode of participation.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	26cb
authors	Kalay, Yehuda E. and Steinfeld, Edward
year	1990
title	The Impact of Computer-Aided Design on Representation in Architecture
source	1990. 24 p. : ill. includes bibliography
summary	Representation can be defined as a process of abstraction and communication. Through some symbolic language, characteristics of a real or hypothetical object or experience are conveyed by one person to another. During the process of design there are two basic uses of representation: internal and external. Internal representation is used by the designer to create and transform the design in process. It is a conversation with oneself. External representations are used to communicate the evolving design to others, including others in the design team, so that it can be evaluated and criticized. Computers are used today in architecture primarily as a tool to carry on the practice of architecture as it has evolved during the recent past. The new technology has heretofore been adapted to conform to our habitual forms of representation. This paper explores how computer technology can support new methods of representation in architecture. Issues discussed include the form and content of internal computer-aided representations, loss of information due to abstraction, communication between internal and external representations, and the form and process of external representation
keywords	CAD, architecture, representation
series	CADline
email
last changed	2003/06/02 10:24

_id	5509
authors	Koutamanis, Alexandros
year	1990
title	Development of a computerized handbook of architectural plans
source	Delft University of Technology
summary	The dissertation investigates an approach to the development of visual / spatial computer representations for architectural purposes through the development of the computerized handbook of architectural plans (chap), a knowledge-based computer system capable of recognizing the metric properties of architectural plans. This investigation can be summarized as an introduction of computer vision to the computerization of architectural representations: chap represents an attempt to automate recognition of the most essential among conventional architectural drawings, floor plans. The system accepts as input digitized images of architectural plans and recognizes their spatial primitives (locations) and their spatial articulation on a variety of abstraction levels. The final output of chap is a description of the plan in terms of the grouping formations detected in its spatial articulation. The overall structure of the description is based on an analysis of its conformity to the formal rules of its “stylistic” context (which in the initial version of chap is classical architecture). Chapter 1 suggests that the poor performance of computerized architectural drawing and design systems is among others evidence of the necessity to computerize visual / spatial architectural representations. A recognition system such as chap offers comprehensive means for the investigation of a methodology for the development and use of such representations. Chapter 2 describes a fundamental task of chap: recognition of the position and shape of locations, the atomic parts of the description of an architectural plan in chap. This operation represents the final and most significant part of the first stage in processing an image input in machine environment. Chapter 3 moves to the next significant problem, recognition of the spatial arrangement of locations in an architectural plan, that is, recognition of grouping relationships that determine the subdivision of a plan into parts. In the absence of systematic and exhaustive typologic studies of classical architecture that would allow us to define a repertory of the location group types possible in classical architectural plans, Chapter 3 follows a bottom-up approach based on grouping relationships derived from elementary architectural knowledge and formalized with assistance from Gestalt theory and its antecedents. The grouping process described in Chapter 3 corresponds both in purpose and in structure to the derivation of a description of an image in computer vision [Marr 1982]. Chapter 4 investigates the well-formedness of the description of a classical architectural plan in an analytical manner: each relevant level (or sublevel) of the classical canon according to Tzonis & Lefaivre [1986] is transformed into a single group of criteria of well-formedness which is investigated independently. The hierarchical structure of the classical canon determines the coordination of these criteria into a sequence of cognitive filters which progressively analyses the correspondence of the descriptions derived as in Chapter 3 to the constraints of the canon. The methodology and techniques presented in the dissertation are primarily considered with respect to chap, a specific recognition system. The resulting specification of chap gives a measure of the use of such a system within the context of a computerized collection of architectural precedents and also presents several extensions to other areas of architecture. Although these extensions are not considered as verifiable claims, Chapter 5 describes some of their implications, including on the role of architectural drawing in computerized design systems, on architectural typologies, and on the nature and structure of generative systems in architecture.
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	3105
authors	Novak, T.P., Hoffman, D.L., and Yung, Y.-F.
year	1996
title	Modeling the structure of the flow experience
source	INFORMS Marketing Science and the Internet Mini-Conference, MIT
summary	The flow construct (Csikszentmihalyi 1977) has recently been proposed by Hoffman and Novak (1996) as essential to understanding consumer navigation behavior in online environments such as the World Wide Web. Previous researchers (e.g. Csikszentmihalyi 1990; Ghani, Supnick and Rooney 1991; Trevino and Webster 1992; Webster, Trevino and Ryan 1993) have noted that flow is a useful construct for describing more general human-computer interactions. Hoffman and Novak define flow as the state occurring during network navigation which is: 1) characterized by a seamless sequence of responses facilitated by machine interactivity, 2) intrinsically enjoyable, 3) accompanied by a loss of self-consciousness, and 4) selfreinforcing." To experience flow while engaged in an activity, consumers must perceive a balance between their skills and the challenges of the activity, and both their skills and challenges must be above a critical threshold. Hoffman and Novak (1996) propose that flow has a number of positive consequences from a marketing perspective, including increased consumer learning, exploratory behavior, and positive affect."
series	other
last changed	2003/04/23 15:50

_id	2005_115
id	2005_115
authors	Oxman, Rivka and Rotenstreich, Ruth
year	2005
title	Conceptual Content of Digital Design
doi	https://doi.org/10.52842/conf.ecaade.2005.115
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 115-121
summary	Concepts related to digital architecture have begun to occupy a central role in current architectural discourse. Design concepts that have been the conceptual content of this discourse are now becoming integrated into the general architectural discourse. The research reports on this process of the emergence, migration, and crystallization of a new conceptual structure over the past decade under the influence of digital design and its emerging conceptual structure. The research presented in this paper examines the emergence of new ideas in architectural thinking that are related to digital architecture since 1990 until today. In order to demonstrate this shift, we have selected a representative architectural building type that is strongly and directly influenced by the conceptual content of the cultural discourse in architecture. A museum type was selected to represent features of the expression that reflects the changes and evolution of conceptual structures that underlie digital design. The research methodology is based on a method known as “content analysis”. Content analysis in our research was de- fined as including textual material in books, book chapters, essays, articles, and historical documents. A new approach for Design Content Analysis was accomplished employing the ICF analytical framework. In order to conduct a content analysis the text was coded and was broken down into categories on a variety of theoretical design themes. Our findings demonstrate that certain expressions related to digital technology have moved up from a low level descriptive function to a significant conceptual role in formulating the design content of architectural design. In our paper we describe the research, methodology findings and contribution to the definition of the conceptual content of contemporary architectural discourse on digital architecture.
keywords	Digital Design, Digital Architecture, Content Analysis, Conceptual Design
series	eCAADe
email
last changed	2022/06/07 08:00

_id	4ec7
authors	Papper, Mike
year	1990
title	Using high-level constraints to aid space planning applications in computer-aided design
source	University of Toronto, Department of Computer Science
summary	This thesis describes a system that aids in solving space planning and layout design problems through an innovative use of constraints. Space planning problem solving is aided by constrained manipulation, a trial-and-error approach, and modelling the scaling properties of objects. Constraints are used to model various physical properties of solid objects (including gravity and friction) and to control the way in which objects scale. The system runs on a Silicon Graphics workstation supporting interactive, real-time, 3-dimensional graphics that aid in visualizing designs. The problems handled by our prototype are restricted to objects representable with rectangular solids oriented along the cartesian axes. This system was used by designers and novice computer users to solve a studio layout problem. Constraints were found to aid in the manipulation of objects by providing predictable behaviour for objects. The test results indicate that subjects learn the behaviour of objects easily and use this information in useful ways. In addition, there are indications that constraints can reduce users' cognitive loads at the user interface level. The coupling of constraints with the interactive, 3-dimensional aspect of the system encourages the use of the system at earlier stages of the design process than simple geometric drafting systems. (Abstract shortened by UMI.)
series	thesis:MSc
email
last changed	2003/02/12 22:37

_id	22a4
authors	Rogers, D.F.
year	1990
title	Mathematical elements for computer graphics
source	McGraw Hill, USA
summary	The second edition of this classic computer graphics book represents a major rewrite. The clear concise discussion, the detailed algorithms, worked examples and numerous illustrations make the book of special interest to students, programmers and computer graphics professionals. The numerous detailed worked examples make it especially suitable for self-study. The first edition of the book, published in 1976, was one of the earliest computer graphics books. That first edition is still a staple on the bookshelves of many of the pioneers in computer graphics. The book thoroughly covers two- and three-dimensional transformations including rotation, scaling, translation, reflection, rotation about arbitrary points and axes, reflection about arbitrary lines and through arbitrary planes and points at infinity. Plane and space curves including efficient methods for representing conic sections, cubic splines, parabolically blended, Bezier and rational and non-rational B-spline (NURBS) curves are discussed. The discussion of surfaces includes surfaces of revolution, sweep surfaces, ruled and developable surfaces, Coons surfaces, Bezier and rational and non-rational B-splines (NURBS) surfaces. As with all the topics in the book, the discussion of both rational and non-rational B-spline curves and surfaces is accompanied by numerous detailed worked examples. The appendices contain over 50 pseudocoded algorithms including over 25 algorithms for Bezier and B-spline curves and surfaces.
series	other
last changed	2003/04/23 15:14

_id	0278
authors	Saalman, Howard
year	1990
title	Goodness and Value in the Structure of Cognitive Processes
source	Journal of Architectural Education Summer, 1990. vol. 43: pp. 3-7. includes bibliography.
summary	This paper had its origins in a course entitled 'Basic Concepts in Architecture' which the author has been teaching for about ten years at Carnegie Mellon University. The course is designed to give architects a basis for understanding notions like process (including the architectural process), for developing functioning theories to determine the 'goodness' of things (including their own designs), in short, an approach to problems of cognition, of perception and of response to perceptions. They become aware, perhaps for the first time, of the precise significance of numbers in their design work, including the dreaded demons of 'nothing' and 'infinity.' They learn the meaning of time: it is the sum of perceptions involved in any process, including the process of getting to know things. Control over the design process is what architects must have so they can function effectively, and make the right decisions. Learning about these things is the goal of the course
keywords	design process, architecture, education, cognition, perception, performance, control
series	CADline
last changed	1999/02/12 15:09

_id	ae95
authors	Seebohm, Thomas
year	1990
title	CAD and the Baroque
doi	https://doi.org/10.52842/conf.acadia.1990.079
source	From Research to Practice [ACADIA Conference Proceedings] Big Sky (Montana - USA) 4-6 October 1990, pp. 79-97
summary	After a review of various methods of teaching computer aided design in schools of architecture, including "the conventional wisdom of CAD", an approach is presented whereby the application of this "wisdom” is taught by creating very complex drawings of Baroque elevations. A description is given of how such drawings may be structured and of how a group of students may work on such drawings simultaneously to complete them expeditiously. An extension of this method of teaching architectural CAD is discussed wherein students would not only draw but would also design detailed elevations and plans of villas in the Palladian manner using recently developed computer aids to assist in the design.
series	ACADIA
email
last changed	2022/06/07 07:56

_id	avocaad_2001_20
id	avocaad_2001_20
authors	Shen-Kai Tang
year	2001
title	Toward a procedure of computer simulation in the restoration of historical architecture
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	In the field of architectural design, “visualization¨ generally refers to some media, communicating and representing the idea of designers, such as ordinary drafts, maps, perspectives, photos and physical models, etc. (Rahman, 1992; Susan, 2000). The main reason why we adopt visualization is that it enables us to understand clearly and to control complicated procedures (Gombrich, 1990). Secondly, the way we get design knowledge is more from the published visualized images and less from personal experiences (Evans, 1989). Thus the importance of the representation of visualization is manifested.Due to the developments of computer technology in recent years, various computer aided design system are invented and used in a great amount, such as image processing, computer graphic, computer modeling/rendering, animation, multimedia, virtual reality and collaboration, etc. (Lawson, 1995; Liu, 1996). The conventional media are greatly replaced by computer media, and the visualization is further brought into the computerized stage. The procedure of visual impact analysis and assessment (VIAA), addressed by Rahman (1992), is renewed and amended for the intervention of computer (Liu, 2000). Based on the procedures above, a great amount of applied researches are proceeded. Therefore it is evident that the computer visualization is helpful to the discussion and evaluation during the design process (Hall, 1988, 1990, 1992, 1995, 1996, 1997, 1998; Liu, 1997; Sasada, 1986, 1988, 1990, 1993, 1997, 1998). In addition to the process of architectural design, the computer visualization is also applied to the subject of construction, which is repeatedly amended and corrected by the images of computer simulation (Liu, 2000). Potier (2000) probes into the contextual research and restoration of historical architecture by the technology of computer simulation before the practical restoration is constructed. In this way he established a communicative mode among archeologists, architects via computer media.In the research of restoration and preservation of historical architecture in Taiwan, many scholars have been devoted into the studies of historical contextual criticism (Shi, 1988, 1990, 1991, 1992, 1995; Fu, 1995, 1997; Chiu, 2000). Clues that accompany the historical contextual criticism (such as oral information, writings, photographs, pictures, etc.) help to explore the construction and the procedure of restoration (Hung, 1995), and serve as an aid to the studies of the usage and durability of the materials in the restoration of historical architecture (Dasser, 1990; Wang, 1998). Many clues are lost, because historical architecture is often age-old (Hung, 1995). Under the circumstance, restoration of historical architecture can only be proceeded by restricted pictures, written data and oral information (Shi, 1989). Therefore, computer simulation is employed by scholars to simulate the condition of historical architecture with restricted information after restoration (Potier, 2000). Yet this is only the early stage of computer-aid restoration. The focus of the paper aims at exploring that whether visual simulation of computer can help to investigate the practice of restoration and the estimation and evaluation after restoration.By exploring the restoration of historical architecture (taking the Gigi Train Station destroyed by the earthquake in last September as the operating example), this study aims to establish a complete work on computer visualization, including the concept of restoration, the practice of restoration, and the estimation and evaluation of restoration.This research is to simulate the process of restoration by computer simulation based on visualized media (restricted pictures, restricted written data and restricted oral information) and the specialized experience of historical architects (Potier, 2000). During the process of practicing, communicates with craftsmen repeatedly with some simulated alternatives, and makes the result as the foundation of evaluating and adjusting the simulating process and outcome. In this way we address a suitable and complete process of computer visualization for historical architecture.The significance of this paper is that we are able to control every detail more exactly, and then prevent possible problems during the process of restoration of historical architecture.
series	AVOCAAD
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last changed	2005/09/09 10:48

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