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	bd21
authors	Barría Chateau, H., García Alvarado, R., Lagos Vergara, R. and Parra Márquez, J.C.
year	1999
title	Evaluation of Spatial Perception in Virtual Environments
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 145-148
summary	The 3D environments created by computers can be used as a powerful simulation tool for architecture, especially with inmersive devices, but it is necessary to know properly their spatial characteristics to use it effectively. It is also important to consider their possibilities in communication networks and their implications in contemporary architecture. For this reason, the goal of this research is to evaluate the perception of virtual architectonic spaces in relation to the perception of real architectonic spaces. This research is based on the comparison of experiences of university students in a real space (Entrance Hall of Faculty of Economy) and in the same space modeled by a computer. The evaluation considers tests with stereoscopic helmets and interactive navigation, making questionnaires to characterize the sensation of dimensions, relationships and time for an specific activity. The measuring of real and virtual spaces are made through references (furniture, textures, etc.) or by proportional relations between height, width and depth, in different patterns. The experience also reveals mental schemes to perceive the dimension of architectonic space and the orientation in a real and virtual environment. Besides, the research allows to relate the different levels of complexity and information with the understanding of real architectonic space and modeled space.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ecaade2014_146
id	ecaade2014_146
authors	Davide Ventura and Matteo Baldassari
year	2014
title	Grow: Generative Responsive Object for Web-based design - Methodology for generative design and interactive prototyping
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 2, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 587-594
doi	https://doi.org/10.52842/conf.ecaade.2014.2.587
wos	WOS:000361385100061
summary	This paper is part of the research on Generative Design and is inspired by the ideas spread by the following paradigms: the Internet of Things (Auto-ID Center, 1999) and the Pervasive/Ubiquitous Computing (Weiser, 1993). Particularly, the research describes a number of case studies and, in detail, the experimental prototype of an interactive-design object: “Grow-1”. The general assumptions of the study are as follows: a) Developing the experimental prototype of a smart-design object (Figure 1) in terms of interaction with man, with regard to the specific conditions of the indoor environment as well as in relation to the internet/web platforms. b) Setting up a project research based on the principles of Generative Design.c) Formulating and adopting a methodology where computational design techniques and interactive prototyping ones converge, in line with the principles spread by the new paradigms like the Internet of Things.
keywords	Responsive environments and smart spaces; ubiquitous pervasive computing; internet of things; generative design; parametric modelling
series	eCAADe
email
last changed	2022/06/07 07:55

_id	2076
authors	Holmgren, Steen and Rüdiger, Bjarne
year	1999
title	IT in Urban Regeneration Projects
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 708-713
doi	https://doi.org/10.52842/conf.ecaade.1999.708
summary	This paper is about the development of new tools for the residents to use for participation in the planning process and by the professional generating proposals for projects. It deals with two actual research projects, which might be described as transition projects. The projects are Digital 3D City Model of Copenhagen and Urban Architecture in Urban Renewal, - in dialogue between professionals and residents. These projects take their point of departure in the architects traditional working methods and working tools, but they focus on new methods for the dialogue between professionals and inhabitants and on a new visual language based on the digital technology. In this transition situation we see the educated architect as well as the politician and the inhabitant as students in a common learning process. In the end of the paper we introduce a planned project about IT in Urban Renewal. The project is based on an ongoing governmental experiment with involving inhabitants actively in the renewal of their urban area. This project is intended to combine dialogue methods with the use of interactive 3D-digital City models on the Internet.
keywords	3D City modeling, Urban Regeneration, Participation, Dialogue Method, 3D Digital City Model, Urban Architecture
series	eCAADe
email
last changed	2022/06/07 07:50

_id	39cb
authors	Kelleners, Richard H.M.C.
year	1999
title	Constraints in object-oriented graphics
source	Eindhoven University of Technology
summary	In the area of interactive computer graphics, two important approaches to deal with the complexity of designing and implementing graphics systems are object-oriented programming and constraint-based programming. From literature, it appears that combination of these two has clear advantages but has also proven to be difficult. One of the main problems is that constraint programming infringes the information hiding principle of object-oriented programming. The goal of the research project is to combine these two approaches to benefit from the strengths of both. Two research groups at the Eindhoven University of Technology investigate the use of constraints on graphics objects. At the Architecture department, constraints are applied in a virtual reality design environment. At the Computer Science department, constraints aid in modeling 3D animations. For these two groups, a constraint system for 3D graphical objects was developed. A conceptual model, called CODE (Constraints on Objects via Data flows and Events), is presented that enables integration of constraints and objects by separating the object world from the constraint world. In the design of this model, the main aspect being considered is that the information hiding principle among objects may not be violated. Constraint solvers, however, should have direct access to an object’s internal data structure. Communication between the two worlds is done via a protocol orthogonal to the message passing mechanism of objects, namely, via events and data flows. This protocol ensures that the information hiding principle at the object-oriented programming level is not violated while constraints can directly access “hidden” data. Furthermore, CODE is built up of distinct elements, or entity types, like constraint, solver, event, data flow. This structure enables that several special purpose constraint solvers can be defined and made to cooperate to solve complex constraint problems. A prototype implementation was built to study the feasibility of CODE. Therefore, the implementation should correspond directly to the conceptual model. To this end, every entity (object, constraint, solver) of the conceptual model is represented by a separate process in the language MANIFOLD. The (concurrent) processes communicate by events and data flows. The implementation serves to validate the conceptual model and to demonstrate that it is a viable way of combining constraints and objects. After the feasibility study, the prototype was discarded. The gained experience was used to build an implementation of the conceptual model for the two research groups. This implementation encompassed a constraint system with multiple solvers and constraint types. The constraint system was built as an object-oriented library that can be linked to the applications in the respective research groups. Special constructs were designed to ensure information hiding among application objects while constraints and solvers have direct access to the object data. CODE manages the complexity of object-oriented constraint solving by defining a communication protocol to allow the two paradigms to cooperate. The prototype implementation demonstrates that CODE can be implemented into a working system. Finally, the implementation of an actual application shows that the model is suitable for the development of object-oriented software.
keywords	Computer Graphics; Object Oriented Programming; Constraint Programming
series	thesis:PhD
last changed	2003/02/12 22:37

_id	5919
authors	Lentz, Uffe
year	1999
title	Integrated Design with Form and Topology Optimizing
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 116-121
doi	https://doi.org/10.52842/conf.ecaade.1999.116
summary	The topic of this paper is to describe the ability of 3D CAD systems to integrate designers and engineers into a simultaneous process developing a functional and aesthetic concept in a close and equal interdisciplinary process. We already have the Finite Element Method, FEM systems for analyzing the mechanical behavior of constructions. This technique is suitable for justifying design aspects in the final part of the design process. A new group of CAE systems under the generic term Topology optimizing has the potentials to handle aspects of conceptual design and aesthetic criteria. Such interactive design tools do not eliminate the designer, but the relationship between the designer and other professions and the professional consciousness of the designer will change. It is necessary to develop common ideas able to connect the scientific and the artistic fields. The common aesthetic values must be clarified and the corresponding formal ideas be developed. These tools could be called "Construction tools for the intelligent user" (Olhoff, 1998) because the use of optimizing is based on a profound knowledge of the techniques.
keywords	Form, Topology, Optimizing
series	eCAADe
email
last changed	2022/06/07 07:52

_id	6024
authors	McCall, Raymond
year	1999
title	A Web-centric CAD System for Collaborative Design
source	Proceedings of the Eighth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-8536-5] Atlanta, 7-8 June 1999, pp. 65-79
summary	Web-PHIDIAS is a hypermedia-based, intelligent CAD system that delivers both CAD functionality and design information to anyone with Web access. This system is above all designed to facilitate collaborative architectural design. It provides both private (individual) and collaborative (group) drawing and text authoring spaces, with a variety of types of authoring and viewing privileges for groups. This enables a single designer to work in privacy on one piece of a design and later "publish" it to a supervisor or a group. It also enables a group to work in privacy and later publish its work to a different or larger group. This notion of "levels of privacy/publication" is a crucial but too- often missing component of collaborative design systems. With WebPHIDIAS, all drawings are stored in a central repository accessible from the group server. This means that they are accessible from anywhere in the world to any viewer who has the required viewing and/or authoring privileges. This enables designers to access and modify stored drawings while travelling or when out on the site, even if the site is in another country. It also enables them to create new drawings and store them in the central repository from anywhere in the world. Web-PHIDIAS consists of an interactive Web-based client that serves as an interface to the PHIDIAS hypermedia server. This client, which is implemented in Java, provides basic, 2D graphical editing functionality and as well as display of 3D views. It also provides access to multimedia information useful for whatever design task is at hand. This information includes text and graphical descriptions of design precedents as well as various issues in design of a particular type of building.
keywords	Net-Centric, Web-Centric, Hypertext, Hypermedia, CAD, HyperCAD, Knowledge-Based Critics, Collaboration, Executable Content, Argumentative Design, IBIS, PHI, Design Rationale
series	CAAD Futures
last changed	2006/11/07 07:22

_id	504a
authors	Rodrigo Alvarado, García
year	1999
title	Design-Based on VR-Modeling of Environemntal Conditions
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 126-129
summary	The research on CAD has been looking for a long time a creative contribution to architectural design, including recently the use of virtual-reality as an immersive modeling system, but without much practical results. However, contemporary architecture is increasingly including digital characteristics based more on cultural influences than on the use of electronic tools. This shows an evolution of the discipline in relation to digital media and apparently distant from environmental concerns. But the works and reflexions reveal a common convergence in the role of body in architecture as a pivot between virtual and local dimension of design. Based on that relationship we propose to take advantage of virtual-reality for modeling environmental conditions of the location in order to guide architectural design, using for example the potential of representing characteristics not visible in reality or to simulate time cycles. Sun displacement, wind direction, temperature ranges, topography and landscape are specific conditions in design that define energy consumption and human comfort. Such characteristics can establish optimal shapes crossing the different variables with timelines. VR-modeling and interactive control allow an spatial evaluation of environmentally efficient forms. That is showed through an exercise of housing in different locations of Chile. This merger between digital media and ecological concerns represents a crossing of contemporary cultural trends to motivate exploration of new geometries, supported on the potential of technology and on sustainable human development
series	SIGRADI
email
last changed	2016/03/10 09:59

_id	b34d
authors	Russell, P., Kohler, N., Forgber, U., Koch, V. and Rügemer, J.
year	1999
title	Interactive Representation of Architectural Design: The Virtual Design Studio as an Architectural Graphics Laboratory
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 459-465
doi	https://doi.org/10.52842/conf.ecaade.1999.459
summary	This paper introduces the Virtual Design Studio (VDS), an internet based design studio environment established by ifib. VDS transfers lessons learned through research projects in the field of Computer Supported Co-operative Work (CSCW) being carried out at ifib into design education. By training for interdisciplinary co-operation within the design process, the students will become better prepared for the flexibility and co-operability required in planning situations. Increasing the communication and co-operation in the planning process can be achieved through the implementation of IT based virtual workspaces. In the design studio setting, this is done through the use of available internet software and technologies. The methodology of the VDS is briefly described including specific assignments intended to focus student investigations into specific areas including the representation of their work using the world wide web. The pedagogical expectations are discussed and anecdotal evidence precedes an general evaluation of the teaching method. The authors postulate that one of the unintended by-products of the studio is the evolution of an effective use of interactivity in the presentation of design concepts, ideas and solutions. A handful of student work is presented to describe the different approaches taken in using the world wide web (WWW) to display project work. A description of the local evolution (VDS specific) of graphical methods and technologies is followed by a comparison with those used in traditional settings. Representation is discussed with focus on the ability of the WWW to replace, augment or corrupt other methods of presentation. The interactive nature of web based presentations induces alterations to the narration of architectural work and can enhance the spatial perception of design space. Space Perception can be enabled through geometrically true VRML representations, the inclusion of auditory sensations, the abstraction of representation through the use of advertising techniques as well as the introduction of non-linear narrative concepts. Examples used by students are shown. A critical assessment of these new representational methods and the place of current new media within the context of architectural representation is discussed.
keywords	Virtual Design Studio, Architectural Graphics, Teaching
series	eCAADe
email
last changed	2022/06/07 07:56

_id	1570
authors	Sowizral, H.A. and Deering, M.F.
year	1999
title	The Java 3D API and Virtual Reality
source	IEEE Computer Graphics and Applications, May/June
summary	Java 3D proves a natural choice for any Java programmer wanting to write an interactive 3D graphics program. A programmer constructs a scene graph containing graphic objects, lights, sounds, environmental effects objects, and behavior objects that handle interactions or modify other objects in the scene graph. The programmer then hands that scene graph to Java 3D for execution. Java 3D starts rendering objects and executing behaviors in the scene graph. Virtual reality applications go through an identical writing process. However, before a user can use such an application, Java 3D must additionally know about the user's physical characteristics (height, eye separation, and so forth) and physical environment (number of displays, their location, trackers, and so on). Not surprisingly, such information varies from installation to installation and from user to user. So Java 3D lets application developers separate their application's operation from the vagaries of the user's final display environment. The Java 3D application programmer's interface (API) provides a very flexible platform for building a broad range of graphics applications. Developers have already used Java 3D to build applications in a variety of domains including mechanical CAD, molecular visualization, scientific visualization, animation previews, geographic information systems, business graphics, 3D logos, and educational offerings. Virtual reality applications have included immersive workbench applications, headtracked shutter-glass-based desktop applications, and portals (a cave-like room with multiple back-projected walls).
series	journal paper
last changed	2003/04/23 15:50

_id	d43d
authors	Yu, Dazhong
year	1999
title	Public Participation in Urban Design Based on Information Technology
source	CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 393-402
doi	https://doi.org/10.52842/conf.caadria.1999.393
summary	For years, lack of public participation has affected the quality of design and planning. The developing cities constantly face the anti-development sentiments on the part of local residents because of controversial decision of development. Rapid development of information technology provides us with a chance to mend the delay of communication with the public in design procedure. It makes it possible to get the resident's reaction to a new project. Unlike a purely CAD-based environment, computer application to urban design is based on a blend of computer-aided design, spatial information system, and interactive multimedia. It is the combination of geometric, geographic, and annotated information and the need of data integration by collaboration and meanwhile it provides opportunities of participation. Due to the position at the crossover of architecture, landscape architecture, and planning, urban design attempts to control the proceeding in both design improvisations and socio-economic policies. In this proceeding, public participation plays an important role in exchanging opinions with the masses. In the situation of participation in China, we can synthesize some useful methods of public participation in the urban design by means of computer simulation, computer communication, and diverse software and tools, etc.
series	CAADRIA
last changed	2022/06/07 07:57

_id	3ddc
authors	Dijkstra, Jan and Timmermans, Harry
year	1999
title	Towards a Multi-Agent Model for Visualizing Simulated User Behavior to Support the Assessment of Design Performance
source	Media and Design Process [ACADIA ‘99 / ISBN 1-880250-08-X] Salt Lake City 29-31 October 1999, pp. 226-237
doi	https://doi.org/10.52842/conf.acadia.1999.226
summary	We introduce the outline of a multi-agent model that can be used for visualizing simulated user behavior to support the assessment of design performance. We will consider various performance indicators of building environments, which are related to user reaction to design decisions. This system may serve as a media tool in the design process for a better understanding of what the design will look like, especially for those cases where design or planning decisions will affect the behavior of individuals. The system is based on cellular automata and multi-agent simulation technology. The system simulates how agents move around in a particular 3D (or 2D) environment, in which space is represented as a lattice of cells. Agents represent objects or people with their own behavior, moving over the network. Each agent will be located in a simulated space, based on the cellular automata grid. Each iteration of the simulation is based on a parallel update of the agents conforming local rules. Agents positioned within an environment will need sensors to perceive their local neighborhood and some means with which to affect the environment. In this way, autonomous individuals and the interaction between them can be simulated by the system. As a result, designers can use the system to assess the likely consequences of their design decisions on user behavior. We think that the system provides a potentially valuable tool to support design and decision-making processes, related to user behavior in architecture and urban planning.
series	ACADIA
email
last changed	2022/06/07 07:55

_id	ga9922
id	ga9922
authors	Annunziato, M. and Pierucci, P.
year	1999
title	The Art of Emergence
source	International Conference on Generative Art
summary	Since several years, the term emergence is mentioned in the paradigm of chaos and complexity. Following this approach, complex system constituted by multitude of individual develop global behavioral properties on the base of local chaotic interactions (self-organization). These theories, developed in scientific and philosophical milieus are rapidly spreading as a "way of thinking" in the several fields of cognitive activities. According to this "way of thinking" it is possible revise some fundamental themes as the economic systems, the cultural systems, the scientific paths, the communication nets under a new approach where nothing is pre-determined, but the global evolution is determined by specific mechanisms of interaction and fundamental events (bifurcation). With a jump in scale of the life, also other basic concepts related to the individuals as intelligence, consciousness, psyche can be revised as self-organizing phenomena. Such a conceptual fertility has been the base for the revision of the artistic activities as flexible instruments for the investigation of imaginary worlds, metaphor of related real worlds. In this sense we claim to the artist a role of "researcher". Through the free exploration of new concepts, he can evoke qualities, configurations and hypothesis which have an esthetical and expressive value and in the most significant cases, they can induce nucleation of cultural and scientific bifurcation. Our vision of the art-science relation is of cooperative type instead of the conflict of the past decades. In this paper we describe some of the most significant realized artworks in order to make explicit the concepts and basic themes. One of the fundamental topics is the way to generate and think to the artwork. Our characterization is to see the artwork not as a static finished product, but as an instance or a dynamic sequence of instances of a creative process which continuously evolves. In this sense, the attention is focused on the "generative idea" which constitutes the envelop of the artworks generable by the process. In this approach the role of technology (computers, synthesizers) is fundamental to create the dimension of the generative environment. Another characterizing aspect of our artworks is derived by the previous approach and specifically related to the interactive installations. The classical relation between artist, artwork and observers is viewed as an unidirectional flux of messages from the artist to the observer through the artwork. In our approach artist, artwork and observer are autonomous entities provided with own personality which jointly intervene to determine the creative paths. The artist which generate the environment in not longer the "owner" of the artwork; simply he dialectically bring the generative environment (provided by a certain degree of autonomy) towards cultural and creative "void" spaces (not still discovered). The observers start from these platforms to generate other creative paths, sometimes absolutely unexpected , developing their new dialectical relations with the artwork itself. The results derived by these positions characterize the expressive elements of the artworks (images, sequences and sounds) as the outcomes of emergent behavior or dynamics both in the sense of esthetical shapes emergent from fertile generative environments, either in terms of emergent relations between artist, artwork and observer, either in terms of concepts which emerge by the metaphor of artificial worlds to produce imaginary hypothesis for the real worlds.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	f317
authors	Arvin, Scott A. and House, Donald H.
year	1999
title	Modeling Architectural Design Objectives in Physically Based Space Planning
source	Media and Design Process [ACADIA ‘99 / ISBN 1-880250-08-X] Salt Lake City 29-31 October 1999, pp. 212-225
doi	https://doi.org/10.52842/conf.acadia.1999.212
summary	Physically based space planning is a means for automating the conceptual design process by applying the physics of motion to space plan elements. This methodology provides for a responsive design process, which allows a designer to easily make decisions whose consequences immediately propagate throughout the design. It combines the speed of automated design methods with the flexibility of manual design methods, while adding a highly interactive quality and a sense of collaboration with the design itself. In our approach, the designer creates a space plan by specifying and modifying graphic design objectives rather than by directly manipulating primitive geometry. The plan adapts to the changing state of objectives by applying the physics of motion to its elements. For design objectives to have an effect on a physically based space plan, they need to be able to apply appropriate forces to space plan elements. Space planning can be separated into two problems, determining topological properties and determining geometric properties. Design objectives can then be categorized as topological or geometric objectives. Topological objectives influence the location of individual spaces, affecting how one space relates to another. Geometric objectives influence the size and shape of space boundaries, affecting the dimensions of individual walls. This paper focuses on how to model a variety of design objectives for use in a physically based space planning system. We describe how topological objectives, such as adjacency and orientation, can be modeled to apply forces to space locations, and how geometric objectives, such as area, proportion, and alignment, can be modeled to apply forces to boundary edges.
series	ACADIA
email
last changed	2022/06/07 07:54

_id	d423
authors	Arvin, Scott A. and House, Donald H.
year	1999
title	Making Designs Come Alive: Using Physically Based Modeling Techniques in Space Layout Planning
source	Proceedings of the Eighth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-8536-5] Atlanta, 7-8 June 1999, pp. 245-262
summary	This paper introduces the concept of responsive design. It elaborates this concept as an approach to free form, adaptable, automated design applying physically based modeling techniques to the design process. Our approach attempts to bridge the gap between totally automated design and the free form brainstorming designers normally employ. We do this by automating the initial placement and sizing of design elements, with an interactive engine that appears alive and highly responsive. We present a method for applying these techniques to architectural space layout planning, and preliminary implementation details for a prototype system for developing rectangular, two-dimensional, single- story floor plans.
keywords	Physically Based Space Layout, Physically Based Design, Responsive Design, Space Layout Planning, Computer-aided Design, Human-computer Interaction
series	CAAD Futures
email
last changed	2006/11/07 07:22

_id	9a1e
authors	Clayton, Mark J. and Vasquez de Velasco, Guillermo
year	1999
title	Stumbling, Backtracking, and Leapfrogging: Two Decades of Introductory Architectural Computing
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 151-158
doi	https://doi.org/10.52842/conf.ecaade.1999.151
summary	Our collective concept of computing and its relevance to architecture has undergone dramatic shifts in emphasis. A review of popular texts from the past reveals the biases and emphases that were current. In the seventies, architectural computing was generally seen as an elective for data processing specialists. In the early eighties, personal computers and commercial CAD systems were widely adopted. Architectural computing diverged from the "batch" world into the "interactive" world. As personal computing matured, introductory architectural computing courses turned away from a foundation in programming toward instruction in CAD software. By the late eighties, Graphic User Interfaces and windowing operating systems had appeared, leading to a profusion of architecturally relevant applications that needed to be addressed in introductory computing. The introduction of desktop 3D modeling in the early nineties led to increased emphasis upon rendering and animation. The past few years have added new emphases, particularly in the area of network communications, the World Wide Web and Virtual Design Studios. On the horizon are topics of electronic commerce and knowledge markets. This paper reviews these past and current trends and presents an outline for an introductory computing course that is relevant to the year 2000.
keywords	Computer-Aided Architectural Design, Computer-Aided Design, Computing Education, Introductory Courses
series	eCAADe
email
last changed	2022/06/07 07:56

_id	84e8
authors	Cohen, J.M., Markosian, L., Zeleznik, R.C., Hughes, J.F. and Barzel, R.
year	1999
title	An Interface for Sketching 3D Curves
source	ACM Symposium on Interactive 3D Graphics, pp. 17-22 (April 1999). ACM SIGGRAPH. Edited by Jessica Hodgins and James D. Foley
summary	The ability to specify nonplanar 3D curves is of fundamental importance in 3D modeling and animation systems. Effective techniques for specifying such curves using 2D input devices are desirable, but existing methods typically require the user to edit the curve from several viewpoints. We present a novel method for specifying 3D curves with 2D input from a single viewpoint. The user rst draws the curve as it appears from the current viewpoint, and then draws its shadow on the oor plane. The system correlates the curve with its shadow to compute the curve's 3D shape. This method is more natural than existing methods in that it leverages skills that many artists and designers have developed from work with pencil and paper.
series	other
last changed	2003/04/23 15:14

_id	ga0021
id	ga0021
authors	Eacott, John
year	2000
title	Generative music composition in practice - a critical evaluation
source	International Conference on Generative Art
summary	This critical evaluation will discuss 4 computer based musical works which, for reasons I shall explain, I describe as non-linear or generative. The works have been constructed by me and publicly performed or exhibited during a two year period from October 1998 to October 2000. ‘In the beginning…’ interactive music installation, strangeAttraction, Morley Gallery, London. July 1999 ‘jnrtv’ live generative dance music May 1999 to Dec 2000 ‘jazz’ interactive music installation, another strangeAttraction Morley Gallery, London. July 2000-09-26 ‘the street’ architectural interactive music installation, University of Westminster Oct 2000 Introduction I have always loved the practice of composing, particularly when it means scoring a work to be played by a live ensemble. There is something about taking a fresh sheet of manuscript , ruling the bar lines, adding clefs, key and time signatures and beginning the gradual process of adding notes, one at a time to the score until it is complete that is gratifying and compensates for the enormous effort involved. The process of scoring however is actually one distinct act within the more general task of creating music. Recently, the notion of ‘composing’ has met challenges through an increased interest in non-linear compositional methods. It is actually the presence of Chaotic or uncontrolable elements which add real beauty to music and many if not all of the things we value. If we think of a sunset, waves lapping on the shore, plants, trees a human face and the sound of the human voice, these things are not perfect and more importantly perhaps, they are transient, constantly changing and evolving. Last year and again this year, I have organised an exhibition of interactive , non-linear music installations called 'strangeAttraction'. The title refers to what Edward Lorenz called a ‘strange attractor’ the phenomenon that despite vast degrees of Chaos and uncertainty within a system, there is a degree of predictability, the tendency for chaotic behaviour to ‘attract’ towards a probable set of outcomes. Composition that deals with 'attractors' or probable outcomes rather than specific details which are set in stone is an increasingly intriguing notion.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	8c4f
authors	Emdanat, Samir S. and Vakalo, Emmanuel-G.
year	1999
title	An Experiment in Using Virtual Reality to Teach Compositional Principles to Beginning Students
source	CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 325-333
doi	https://doi.org/10.52842/conf.caadria.1999.325
summary	This paper introduces an experiment in using educational toys as a means for teaching compositional principles to architectural students using: (1) a traditional model-based approach and (2) "BlocksWorld" a computer-based system that utilizes immersive virtual reality technologies. The paper discusses the general nature of the exercise and its objectives and illustrates some of the resulting student projects. Then it introduces an approach to implementing an interactive virtual design environment that is based on this exercise.
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	3936
authors	Geroimenko, Vladimir
year	1999
title	Online Photorealistic VR with Interactive Architectural Objects
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 414-417
doi	https://doi.org/10.52842/conf.ecaade.1999.414
summary	This paper describes how Virtual Reality (VR) technologies can be used for modelling photorealistic environments with interactive and changeable architectural content. This application of VR allows us to create photograph-based panoramic models of real places that include a variety of interactive architectural objects and details. The user is able not only to navigate through a virtual environment (look around, up and down, zoom, jump to another viewpoint or location) but also to change buildings or their architectural details by clicking, moving or rotating. The following types of interactive objects are completely integrated with a virtual environment: 2D image-based objects, 3D image-based objects, 3D VRML-based objects and onscreen world controls. The application can be used effectively for teaching, including distance Internet-based education, project presentations and rapid prototyping. A sample VR environment is presented and some of the key creative and technological issues are discussed.
keywords	Virtual Reality Modelling, Architectural Design, Interactive Contents, Photorealistic Environments
series	eCAADe
email
last changed	2022/06/07 07:51

_id	30c8
authors	Koutamanis, A., Barendse, P.B74 and Kempenaar, J.W.
year	1999
title	Web-based CAAD Instruction: The Delft Experience
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 159-168
doi	https://doi.org/10.52842/conf.ecaade.1999.159
summary	In the early 1990s, the introduction of an extensive CAAD component in the compulsory curriculum of the Faculty of Architecture, Delft University of Technology, stimulated experimentation with computer-based instruction systems. The emergence of the World Wide Web presented new possibilities. Nevertheless, the reasons for investing in Web-based CAAD instruction were mostly pragmatic, i.e. a reaction to necessity, rather than an intention to explore, experiment and revolutionize. One of the problems addressed in our Web-based CAAD instruction is CAAD literacy. Help files and manuals that accompany software have proven to be unsuitable for introductory courses in design computing. This led to the development of a series of dynamic Web-based tutorials, in the form of interactive slide shows. The implementation of the tutorials is based on a cooperative framework that allows teachers and students to contribute at different levels of technical and methodical complexity. The use of the Web in CAAD education also stimulated a more active attitude among students. Despite the limited support and incentives offered by the Faculty, the Web-based CAAD courses became an invitation to intelligent and meaningful use of Web technologies by students for design presentation and communication. This is not only a useful addition to the opportunities offered by CAAD systems but also a prerequisite to new design communities.
keywords	WWW Technologies, Teaching
series	eCAADe
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last changed	2022/06/07 07:51

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