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	449f
authors	Aish, Robert
year	2000
title	Collaborative Design using Long Transactions and "Change Merge"
source	Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 107-111
doi	https://doi.org/10.52842/conf.ecaade.2000.107
summary	If our goal is implement collaborative engineering across temporal, spatial and discipline dimensions, then it is suggested that we first have to address the necessary pre-requisites, which include both the deployment of "enterprise computing" and an understanding of the computing concepts on which such enterprise systems are based. This paper will consider the following computing concepts and the related concepts in the world of design computing, and discuss how these concepts have been realised in Bentley SystemsÕ ProjectBank collaborative engineering data repository: Computing Concept Related Design Concept Normalisation Model v. Report (or Drawing) Transaction Consistency of Design Long Transaction Parallelisation of Design Change Merge Coordination (synchronisation) Revisions Coordination (synchronisation) While we are most probably familiar with the applications of existing datadase concepts (such as Normalisation and Transaction Management) to the design process, the intent of this paper to focus
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:54

_id	1838
authors	Akleman, E., Chen, J. and Meric, B.
year	2000
title	Intuitive and Effective Design of Periodic Symmetric Tiles
source	Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 123-127
doi	https://doi.org/10.52842/conf.acadia.2000.123
summary	This paper presents a new approach for intuitive and effective design of periodic symmetric tiles. We observe that planar graphs can effectively represent symmetric tiles and graph drawing provides an intuitive paradigm for designing symmetric tiles. Moreover, based on our theoretical work to represent hexagonal symmetry by rectangular symmetry, we are able to present all symmetric tiles as graphs embedded on a torus and based on simple modulo operations. This approach enables us to develop a simple and efficient algorithm, which has been implemented in Java. By using this software, designers, architects and artists can create interesting symmetric tiles directly on the web. We also have designed a few examples of symmetric tiles to show the effectiveness of the approach.
series	ACADIA
last changed	2022/06/07 07:54

_id	60e7
authors	Bailey, Rohan
year	2000
title	The Intelligent Sketch: Developing a Conceptual Model for a Digital Design Assistant
source	Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 137-145
doi	https://doi.org/10.52842/conf.acadia.2000.137
summary	The computer is a relatively new tool in the practice of Architecture. Since its introduction, there has been a desire amongst designers to use this new tool quite early in the design process. However, contrary to this desire, most Architects today use pen and paper in the very early stages of design to sketch. Architects solve problems by thinking visually. One of the most important tools that the Architect has at his disposal in the design process is the hand sketch. This iterative way of testing ideas and informing the design process with images fundamentally directs and aids the architect’s decision making. It has been said (Schön and Wiggins 1992) that sketching is about the reflective conversation designers have with images and ideas conveyed by the act of drawing. It is highly dependent on feedback. This “conversation” is an area worthy of investigation. Understanding this “conversation” is significant to understanding how we might apply the computer to enhance the designer’s ability to capture, manipulate and reflect on ideas during conceptual design. This paper discusses sketching and its relation to design thinking. It explores the conversations that designers engage in with the media they use. This is done through the explanation of a protocol analysis method. Protocol analysis used in the field of psychology, has been used extensively by Eastman et al (starting in the early 70s) as a method to elicit information about design thinking. In the pilot experiment described in this paper, two persons are used. One plays the role of the “hand” while the other is the “mind”- the two elements that are involved in the design “conversation”. This variation on classical protocol analysis sets out to discover how “intelligent” the hand should be to enhance design by reflection. The paper describes the procedures entailed in the pilot experiment and the resulting data. The paper then concludes by discussing future intentions for research and the far reaching possibilities for use of the computer in architectural studio teaching (as teaching aids) as well as a digital design assistant in conceptual design.
keywords	CAAD, Sketching, Protocol Analysis, Design Thinking, Design Education
series	ACADIA
last changed	2022/06/07 07:54

_id	diss_cole
id	diss_cole
authors	Cole, R.J.
year	2000
title	The Management and Visualisation of Document Collections Using Formal Concept Analysis
source	Griffith University, Australia
summary	This thesis proposes a methodology, notation/theory, and software framework for organising documents using formal concept analysis. The documents are organised for the purposes of retrieval and analysis using background information in the form of a taxonomy of terms. An emphasis is placed on the development of a methodology that employs scalable computer programs to assist humans in the process of organisation, retrieval and analysis of document collections.The text retrieval community has also been concerned with the organisation of documents. The work outlined in this thesis makes use of the results of the text retrieval community at its lowest layer. Above this layer formal concept analysis is used as a mechanism to allow users to organise document collections using views determined by small numbers of attributes. These views, also known as scales, can make a mixture of coarse and speci c distinctions between documents, and are either selected or created by the users to make precisely the distinctions between documents that are important to their current tasks.The primary tool for the presentation of the results of formal concept analysis is a line diagram. The e ectiveness of the presentation of information contained in a line diagram is heavily dependent on the quality of the diagram. To support users in arriving at a quality diagram for a newly created view, graph drawing algorithms are adapted to the special case of determining a good layout for a concept lattice. This task is di erent from traditional graph layout problems because lattices exhibit a high degree of structure which should be exploited and made evident in the nal diagram. A new layout algorithm is proposed that combines a layered diagram approach and an additive diagram methodology. This new hybrid algorithm is shown to produce better diagrams than other adapted graph drawing algorithms.
series	thesis:PhD
more	http://www.kvocentral.com/
last changed	2003/11/28 07:36

_id	ec4d
authors	Croser, J.
year	2001
title	GDL Object
source	The Architect’s Journal, 14 June 2001, pp. 49-50
summary	It is all too common for technology companies to seek a new route to solving the same problem but for the most part the solutions address the effect and not the cause. The good old-fashioned pencil is the perfect example where inventors have sought to design-out the effect of the inherent brittleness of lead. Traditionally different methods of sharpening were suggested and more recently the propelling pencil has reigned king, the lead being supported by the dispensing sleeve thus reducing the likelihood of breakage. Developers convinced by the Single Building Model approach to design development have each embarked on a difficult journey to create an easy to use feature packed application. Unfortunately it seems that the two are not mutually compatible if we are to believe what we see emanating from Technology giants Autodesk in the guise of Architectural Desktop 3. The effect of their development is a feature rich environment but the cost and in this case the cause is a tool which is far from easy to use. However, this is only a small part of a much bigger problem, Interoperability. You see when one designer develops a model with one tool the information is typically locked in that environment. Of course the geometry can be distributed and shared amongst the team for use with their tools but the properties, or as often misquoted, the intelligence is lost along the way. The effect is the technological version of rubble; the cause is the low quality of data-translation available to us. Fortunately there is one company, which is making rapid advancements on the whole issue of collaboration, and data sharing. An old timer (Graphisoft - famous for ArchiCAD) has just donned a smart new suit, set up a new company called GDL Technology and stepped into the ring to do battle, with a difference. The difference is that GDL Technology does not rely on conquering the competition, quite the opposite in fact their success relies upon the continued success of all the major CAD platforms including AutoCAD, MicroStation and ArchiCAD (of course). GDL Technology have created a standard data format for manufacturers called GDL Objects. Product manufacturers such as Velux are now able to develop product libraries using GDL Objects, which can then be placed in a CAD model, or drawing using almost any CAD tool. The product libraries can be stored on the web or on CD giving easy download access to any building industry professional. These objects are created using scripts which makes them tiny for downloading from the web. Each object contains 3 important types of information: · Parametric scale dependant 2d plan symbols · Full 3d geometric data · Manufacturers information such as material, colour and price Whilst manufacturers are racing to GDL Technologies door to sign up, developers and clients are quick to see the benefit too. Porsche are using GDL Objects to manage their brand identity as they build over 300 new showrooms worldwide. Having defined the building style and interior Porsche, in conjunction with the product suppliers, have produced a CD-ROM with all of the selected building components such as cladding, doors, furniture, and finishes. Designing and detailing the various schemes will therefore be as straightforward as using Lego. To ease the process of accessing, sizing and placing the product libraries GDL Technology have developed a product called GDL Object Explorer, a free-standing application which can be placed on the CD with the product libraries. Furthermore, whilst the Object Explorer gives access to the GDL Objects it also enables the user to save the object in one of many file formats including DWG, DGN, DXF, 3DS and even the IAI's IFC. However, if you are an AutoCAD user there is another tool, which has been designed especially for you, it is called the Object Adapter and it works inside of AutoCAD 14 and 2000. The Object Adapter will dynamically convert all GDL Objects to AutoCAD Blocks during placement, which means that they can be controlled with standard AutoCAD commands. Furthermore, each object can be linked to an online document from the manufacturer web site, which is ideal for more extensive product information. Other tools, which have been developed to make the most of the objects, are the Web Plug-in and SalesCAD. The Plug-in enables objects to be dynamically modified and displayed on web pages and Sales CAD is an easy to learn and use design tool for sales teams to explore, develop and cost designs on a Notebook PC whilst sitting in the architects office. All sales quotations are directly extracted from the model and presented in HTML format as a mixture of product images, product descriptions and tables identifying quantities and costs. With full lifecycle information stored in each GDL Object it is no surprise that GDL Technology see their objects as the future for building design. Indeed they are not alone, the IAI have already said that they are going to explore the possibility of associating GDL Objects with their own data sharing format the IFC. So down to the dirty stuff, money and how much it costs? Well, at the risk of sounding like a market trader in Petticoat Lane, "To you guv? Nuffin". That's right as a user of this technology it will cost you nothing! Not a penny, it is gratis, free. The product manufacturer pays for the license to host their libraries on the web or on CD and even then their costs are small costing from as little as 50p for each CD filled with objects. GDL Technology has come up trumps with their GDL Objects. They have developed a new way to solve old problems. If CAD were a pencil then GDL Objects would be ballistic lead, which would never break or loose its point. A much better alternative to the strategy used by many of their competitors who seek to avoid breaking the pencil by persuading the artist not to press down so hard. If you are still reading and you have not already dropped the magazine and run off to find out if your favorite product supplier has already signed up then I suggest you check out the following web sites www.gdlcentral.com and www.gdltechnology.com. If you do not see them there, pick up the phone and ask them why.
series	journal paper
email
last changed	2003/04/23 15:14

_id	1429
authors	Da Rosa Sampaio, Andréa and Borde, Andréa
year	2000
title	Será que na Era Digital o Desenho Ainda é a Marca Pessoal do Arquiteto? (Will Drawings still be the Architect's Individual Mark in Digital Era?)
source	SIGraDi’2000 - Construindo (n)o espacio digital (constructing the digital Space) [4th SIGRADI Conference Proceedings / ISBN 85-88027-02-X] Rio de Janeiro (Brazil) 25-28 september 2000, pp. 383-387
summary	Technological innovations are driven in such dynamism, which do not favour a reflective process. Novelty is absorbed, in many cases, without criticism, in an immediate way. Concerning Architectural and Urbanism Education, a systematic reflection on the impact of new information technology to students training should not be omitted. As visual codes are the prime expression of architects, it is important to evoke the assumption of drawing as a language in order to evaluate it in regard to the new reality. Intending to broaden the discussion on these issues and to pose in theoretical means practical matters on didactics, it will be investigated the implications of computational resources - specially CAD systems - in graphic expression, in design thinking and their consequences to the education of future architects. Learning visual thinking, and being skillful at traditional as much as digital means, challenges today’s student.
series	SIGRADI
email
last changed	2016/03/10 09:50

_id	ga0002
id	ga0002
authors	Dehlinger, Hans
year	2000
title	Experimental Search for Order in the Code of Generated Drawings
source	International Conference on Generative Art
summary	In a generative system a set of rules is used to create line-oriented drawings. The intentions of the artist are supported and constrained by the rules. If the entire system is designed and programmed by the artist, its generated results can come very close to the intetions persued. The drawing itself comes into existence in a single run of the system. The purity of such an approach has an inherent aesthetic to it, and the results produced seem to reflect this. After production there is (a) the drawing, and (b) the code which generated it. Feeding the code of one such drawing into a postprocessing cycle opens up a range of further possibilities. The paper experimentally explores such possibilities with a focus on finding and constructing order in disorderly arrangements.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	389b
authors	Do, Ellen Yi-Luen
year	2000
title	Sketch that Scene for Me: Creating Virtual Worlds by Freehand Drawing
source	Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 265-268
doi	https://doi.org/10.52842/conf.ecaade.2000.265
summary	With the Web people can now view virtual threedimensional worlds and explore virtual space. Increasingly, novice users are interested in creating 3D Web sites. Virtual Reality Modeling Language gained ISO status in 1997, although it is being supplanted by the compatible Java3D API and alternative 3D Web technologies compete. Viewing VRML scenes is relatively straightforward on most hardware platforms and browsers, but currently there are only two ways to create 3D virtual scenes: One is to code the scene directly using VRML. The other is to use existing CAD and modeling software, and save the world in VRML format or convert to VRML from some other format. Both methods are time consuming, cumbersome, and have steep learning curves. Pen-based user interfaces, on the other hand, are for many an easy and intuitive method for graphics input. Not only are people familiar with the look and feel of paper and pencil, novice users also find it less intimidating to draw what they want, where they want it instead of using a complicated tool palette and pull-down menus. Architects and designers use sketches as a primary tool to generate design ideas and to explore alternatives, and numerous computer-based interfaces have played on the concept of "sketch". However, we restrict the notion of sketch to freehand drawing, which we believe helps people to think, to envision, and to recognize properties of the objects with which they are working. SKETCH employs a pen interface to create three-dimensional models, but it uses a simple language of gestures to control a three-dimensional modeler; it does not attempt to interpret freehand drawings. In contrast, our support of 3D world creation using freehand drawing depend on users’ traditional understanding of a floor plan representation. Igarashi et al. used a pen interface to drive browsing in a 3D world, by projecting the user’s marks on the ground plane in the virtual world. Our Sketch-3D project extends this approach, investigating an interface that allows direct interpretation of the drawing marks (what you draw is what you get) and serves as a rapid prototyping tool for creating 3D virtual scenes.
keywords	Freehand Sketching, Pen-Based User Interface, Interaction, VRML, Navigation
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:55

_id	1185
authors	Faraj, I., Alshawi, M., Aouad, G., Child, T. and Underwood, J.
year	2000
title	An industry foundation classes Web-based collaborative construction computer environment: WISPER
source	Automation in Construction 10 (1) (2000) pp. 79-99
summary	Collaborative working in construction is becoming a reality as many activities are performed globally with actors based in various geographical locations. This paper discusses the development and implementation of a collaborative working environment for construction at the University of Salford which is known as Web-based IFC Shared Project EnviRonment (WISPER). The environment is based on a three tier architecture, where user interfaces, business logic and database are kept separate. A Web and Industry Foundation Classes-based (IFC-based) distributed computer integrated environment has been developed. This environment supports design (CAD), visualisation (VR and Drawing Web Format –– DWF), estimating, planning, specifications and supplier information. WISPER enables project information to be exchanged through a STEP Part 21 file and shared through the IFC database. Meanwhile, a set of Web pages allows for remote interaction, as well as access to and the distribution of applications. This provides great flexibility and portability, thereby enabling construction professionals to contribute as well as to perform and manage their own activities.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	gerardgabriel_phd
id	gerardgabriel_phd
authors	Gabriel, Gerard Caesar
year	2000
title	COMPUTER-MEDIATED COMMUNICATION IN DESIGN
source	PhD Thesis, Faculty of Architecture, University of Sydney
summary	Up till now, architects collaborating with other colleagues did so mostly face-to-face (FTF). They had to be in the same space (co-located) at the same time. Communication was ‘spontaneous’ and ideas were represented, whether verbal or nonverbal, by talking and using ‘traditional drawing tools’. If they were geographically displaced, the interaction was then space affected as well as the probability of being time affected. In this case communication was usually mediated through the telephone, and graphically represented ideas were sent by Fax or posted documents. Recently, some architectural firms started using modems and Internet connections to exchange information, by transferring CAD drawings as well as design information, through e-mail and file transfer protocol (FTP). Discussing ideas in architecture, as a more abstract notion, is different from discussing other more concrete arguments using video conferencing. It is more important to ‘see’ what is being discussed at hand than ‘watch’ the other person(s) involved in the discussion. In other words the data being conveyed might be of more importance than the mode of communication. Taking into consideration recent developments in computer and communication technologies this thesis investigates different communication channels utilised in architectural collaboration through Computer Mediated Collaborative Design (CMCD) sessions as opposed to FTF sessions. This thesis investigates the possible effects these different channels have on collaborative design in general and collaborative design communication in particular. We argue that successful CMCD does not necessarily mean emulating close proximity environments. Excluding certain communication channels in a CMCD environment might affect the flow and quantity of synchronous collaborative communication, but not necessarily the quality and content of mutually communicated and represented design ideas. Therefore different communication channels might affect the type of communication and not necessarily the content of the communication. We propose that audio and video are not essential communication channels in CMCD environments. We posit that architects will collaborate and communicate design representations effectively although with some differences, since those two channels might cause interruptions and successful collaborative sessions can take place without them. For this purpose we conducted twenty-four one-hour experiments involving final year architecture students all working to the same design brief. The experiments were divided into three categories, FTF, full computer mediated collaborative design sessions (CMCD-a; audio-video conferencing plus whiteboard as a shared drawing space) and limited computer mediated collaborative design sessions (CMCD-b; with Lambda MOO used as a chat medium plus whiteboard as a shared drawing space). The experiments were video and audio taped, transcribed and coded into a custom developed coding scheme. The results of the analysed coded data and observations of the videotapes provided evidence that there were noticeable differences between the three categories. There was more design communication and less communication control in the CMCD-b category compared to the FTF and CMCD-a categories. Verbal communication became shorter and straight to the point in CMCD-b as opposed to spontaneous non-stop chat in the other two categories. Moreover in CMCD-b the subjects were observed to be more reflective as well as choosing and re-examining their words to explain ideas to their partners. At times they were seen scrolling back through the text of the conversation in order to re-analyse or interpret the design ideas at hand. This was impossible in FTF and CMCD-a sessions, since the subjects were more spontaneous and audio representations were lost as soon as they were uttered. Also the video channel in the CMCD-a category was ignored and hardly used except for the first few minutes of the experiments, for a brief exchange of light humour on the appearance of each subject. The results obtained from analysing the experiments helped us conclude that different communication channels produce different collaborative environments. The three categories of communication for architectural collaboration explored in our experiments are indicative of the alternatives available to architects now. What is not clear to architects is why they would choose one category over another. We propose that each category has its own strengths and difficulties for architectural collaboration, and therefore should be selected on the basis of the type of communication considered to be most effective for the stage and tasks of the design project.
series	thesis:PhD
type	normal paper
email
last changed	2005/09/09 13:02

_id	36
authors	González, Carlos Guillermo
year	1998
title	Una TecnologÌa Digital Para el Diseño: El Tde-Ac (A Digital Technology for Design: The Tde-Ac)
source	II Seminario Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings / ISBN 978-97190-0-X] Mar del Plata (Argentina) 9-11 september 1998, pp. 274-279
summary	TDE is a graphic language capable of notation of pure design operations, which offers an alternative to Monge and Perspective drawing. This language which was perfected and developed by Claudio Guerri in the late 80's, is originated in the Theory of Spatial Delimitation of CÈsar Janello (1974-1984). From 1995 onwards, and within the framework of the UBACyT AR025 Project (1995-1997), a software in order to apply the TDE through computer technology started to be developed. This work is carried out within the framework of the research program SPATIAL SEMIOTICS-DESIGN THEORY of the FADU-UBA directed by Claudio Guerri, and is continued in the UBACyT AR01 4 Project (1998-2000) "TDE-AC. Graphic language. TDE computer assisted". The computer tool TDE-AC, adds to this graphic language the power of the processing speed and a certain autonomy of interpretation and execution of design operations, which enables to visualize results with a remarkable speed in relation with manual or intellectual work in front of the drawing table. Trough the amplified projection on the screens of the program the stage of development and effectivity of TDE-AC will be demonstrated.
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	b836
authors	Herman, I., Malançon, G. and Marshall, S.
year	2000
title	Graph Visualization and Navigation in Information Visualization : a Survey
source	IEEE Transactions on Visualization and Computer Graphics, Vol. 6
summary	This is a survey on graph visualization and navigation techniques, as used in information visualization. Graphs appear in numerous applications such as web browsing, state-transition diagrams, and data structures. The ability to visualize and to navigate in these potentially large, abstract graphs is often a crucial part of an application. Information visualization has specific requirements, which means that this survey approaches the results of traditional graph drawing from a different perspective.
series	journal paper
last changed	2003/04/23 15:50

_id	1022
authors	Jozen, T., Wang, L. and Sasada, T.
year	1999
title	Sketch VRML - 3D Modeling of Conception
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 557-563
doi	https://doi.org/10.52842/conf.ecaade.1999.557
summary	When an idea hits upon architect's mind suddenly, that idea may be memorized on a piece of paper like as napkin of a restaurant, reverse face of pamphlet etc. For conceptual design, free-form drawing with pencil and paper can efficiently delineate architect's thinking. In environmental design such as urban developing, architects usually describe their initial conception on 2D sketch. Our aim is to construct the Sketch-VRML system mixing non-photo realistic free-form 2D sketch and usual 3D computer graphics for conceptual design applying it to environmental design. It is our principle that we can use CG lightly and naturally like 'croquis' with no special hardware needed but just pencil and paper. From free-form 2D sketch on paper, the Sketch-VRML system builds it up to 3D model 'as is' resembling free hand drawing and it can be revolved and extruded. 3DCG component already produced will be useful material for design making as well as sketches. Therefore, we would like to use these materials as conception making resource with database.
keywords	Conception, Sketch, 3DCG, Database
series	eCAADe
last changed	2022/06/07 07:52

_id	ddssar0019
id	ddssar0019
authors	Madrazo, Leandro
year	2000
title	Networking: media, representation and architecture
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	In this paper we present a pedagogic work, carried out in a third year architecture course, focused on the relationship between teaching content and media. The subject-matter of the course is the concept of representation; an eminently philosophical issue which transcends the limits of a particular discipline. The media that have been used are mostly the web, along with other standard programs to process text and images, create models and animations. The core of this research work is the course ‘Sistemas de Representación’, which has taken place for the first time in the academic year 1999/00. The course is structured in six themes, each one standing for a system of representation: TEXT, FIGURE, OBJECT, IMAGE, SPACE and LIGHT. Within every system, a variety of topics dealing with the concept of representation are addressed in an interdisciplinary manner. A web based learning environment named NETWORKING has been created especially for the course. This environment allows students to perform a variety of collaborative works: drawing visual and linguistic relationships, developing further the works of other students, and participating in collective processes of form generation and space perception.
series	DDSS
last changed	2003/08/07 16:36

_id	55ca
authors	Mase, Jitsuro
year	2000
title	Moderato: 3D Sketch CAD with Quick Positioned Working Plane and Texture Modelling
source	Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 269-272
doi	https://doi.org/10.52842/conf.ecaade.2000.269
summary	The lack of computer systems that can be easily used during the early stages of the architectural design process has been discussed for many years. The usual argument starts with the recognition that hand drawn sketches are an important tool in the early stage of both professional and student design because they can be used to visualise the designer’s ideas quickly and have the flexibility to handle any shape the designer imagines. Research has then mostly focused on using computer based sketch recognition to directly produce three dimensional models from hand drawn sketches. However sketch recognition still has certain problems that require the drawing action of users to be constrained in some way in order to be solved. If sketch recognition is still imperfect, the possibility of directly sketching within digital 3D space should be considered. Some systems allowing user to sketch in digital 3D space have been developed which do not depend on sketch recognition. Although Piranesi does not aim to support sketch design, it does allow the user to paint in the Z-buffer space - an unique idea termed "interactive rendering." SketchVRML tries to generate 3D geometrical data automatically from 2D hand drawn sketches by adding the depth value to the drawn lines according to the strength of line strokes. SketchBoX provides translucent surfaces in digital 3D space which can be glued onto existing objects or arranged anywhere in space. These surfaces have texture map data which can be modified by painting onto the texture. Transparent textures can be painted onto the surfaces to create see-through portions. Moderato also uses this technique to model a polygonÕs shape.
keywords	Sketch, Early Stage, Interface, 3D Modelling
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:59

_id	e6fb
authors	McFadzean, Jeanette
year	1999
title	Computational Sketch Analyser (CSA): Extending the Boundaries of Knowledge in CAAD
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 503-510
doi	https://doi.org/10.52842/conf.ecaade.1999.503
summary	This paper focuses on the cognitive problem-solving strategies of professional architectural designers and their use of external representations for the production of creative ideas. Using a new form of protocol analysis (Computational Sketch Analysis), the research has analysed five architects' verbal descriptions of their cognitive reasoning strategies during conceptual designing. It compares these descriptions to a computational analysis of the architects' sketches and sketching behaviour. The paper describes how the current research is establishing a comprehensive understanding of the mapping between conceptualisation, cognition, drawing, and complex problem solving. The paper proposes a new direction for Computer Aided Architectural Design tools (CAAD). It suggests that in order to extend the boundaries of knowledge in CAAD an understanding of the complex nature of architectural conceptual problem-solving needs to be incorporated into and supported by future conceptual design tools.
keywords	Computational Sketch Analysis, Conceptual Design
series	eCAADe
email
last changed	2022/06/07 07:58

_id	ga0014
id	ga0014
authors	McGuire, Kevin
year	2000
title	Controlling Chaos: a Simple Deterministic System for Creating Complex Organic Shapes
source	International Conference on Generative Art
summary	It is difficult and frustrating to create complex organic shapes using the current set of computer graphic programs. One reason is because the geometry of nature is different from that of our tools. Its self-similarity and fine detail are derived from growth processes that are very different from the working process imposed by drawing programs. This mismatch makesit difficult to create natural looking artifacts. Drawing programs provide a palette of shapes that may be manipulated in a variety ways, but the palette is limited and based on a cold Euclidean geometry. Clouds, rivers, and rocks are not lines or circles. Paint programs provide interesting filters and effects, but require great skill and effort. Always, the details must be arduously managed by the artist. This limits the artist's expressive power. Fractals have stunning visual richness, but the artist's techniques are limited to those of choosing colours and searching the fractal space. Genetic algorithms provide a powerful means for exploring a space of variations, but the artist's skill is limited by the very difficult ability to arrive at the correct fitness function. It is hard to get the picture you wanted. Ideally, the artist should have macroscopic control over the creation while leaving the computer to manage the microscopic details. For the result to feel organic, the details should be rich, consistent and varied, cohesive but not repetitious. For the results to be reproducible, the system should be deterministic. For it to be expressive there should be a cause-effect relationship between the actions in the program and change in the resulting picture. Finally, it would be interesting if the way we drew was more closely related to the way things grew. We present a simple drawing program which provides this mixture of macroscopic control with free microscopic detail. Through use of an accretion growth model, the artist controls large scale structure while varied details emerge naturally from senstive dependence in the system. Its algorithms are simple and deterministic, so its results are predictable and reproducible. The overall resulting structure can be anticipated, but it can also surprise. Despite its simplicity, it has been used to generate a surprisingly rich assortment of complex organic looking pictures.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	6800
authors	Stellingwerff, Martijn
year	1999
title	SketchBoX
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 491-497
doi	https://doi.org/10.52842/conf.ecaade.1999.491
summary	Most Computer Aided Architectural Design software suits the engineered aspects of design quite well but is lacking as a design medium. As far as sketching is concerned, many architects still rely on traditional media such as pen and paper and scale models. This paper presents a theory concerning design media and the application of typical media aspects in a spatial sketch program. SketchBoX is conceived as an experimental 3D version of a sketchbook. It can be used for the notation of primary forms and structures in 'architectural' space. The program consists of several transparent drawing surfaces that can be placed in relation to each other and in relation to models of design or different design contexts. Thus architects and students in architecture might be able to explore more adequately the spatial configuration of the built environment and they can comment within the models of their designs. Architectural group discussions and collaborative work can be enhanced by SketchBoX because visual annotations can be made directly in relation to a 3D model. This paper describes the consequent design considerations and expected use of the SketchBoX program.
keywords	Exploration, Sketching, Commenting, Media, Creativity
series	eCAADe
email
last changed	2022/06/07 07:56

_id	avocaad_2001_09
id	avocaad_2001_09
authors	Yu-Tung Liu, Yung-Ching Yeh, Sheng-Cheng Shih
year	2001
title	Digital Architecture in CAD studio and Internet-based competition
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	Architectural design has been changing because of the vast and creative use of computer in different ways. From the viewpoint of designing itself, computer has been used as drawing tools in the latter phase of design (Mitchell 1977; Coyne et al. 1990), presentation and simulation tools in the middle phase (Liu and Bai 2000), and even critical media which triggers creative thinking in the very early phase (Maher et al. 2000; Liu 1999; Won 1999). All the various roles that computer can play have been adopted in a number of professional design corporations and so-called computer-aided design (CAD) studio in schools worldwide (Kvan 1997, 2000; Cheng 1998). The processes and outcomes of design have been continuously developing to capture the movement of the computer age. However, from the viewpoint of social-cultural theories of architecture, the evolvement of design cannot be achieved solely by designers or design processes. Any new idea of design can be accepted socially, culturally and historically only under one condition: The design outcomes could be reviewed and appreciated by critics in the field at the time of its production (Csikszentmihalyi 1986, 1988; Schon and Wiggins 1992; Liu 2000). In other words, aspects of design production (by designers in different design processes) are as critical as those of design appreciation (by critics in different review processes) in the observation of the future trends of architecture.Nevertheless, in the field of architectural design with computer and Internet, that is, so-called computer-aided design computer-mediated design, or internet-based design, most existing studies pay more attentions to producing design in design processes as mentioned above. Relatively few studies focus on how critics act and how they interact with designers in the review processes. Therefore, this study intends to investigate some evolving phenomena of the interaction between design production and appreciation in the environment of computer and Internet.This paper takes a CAD studio and an Internet-based competition as examples. The CAD studio includes 7 master's students and 2 critics, all from the same countries. The Internet-based competition, held in year 2000, includes 206 designers from 43 counties and 26 critics from 11 countries. 3 students and the 2 critics in the CAD studio are the competition participating designers and critics respectively. The methodological steps are as follows: 1. A qualitative analysis: observation and interview of the 3 participants and 2 reviewers who join both the CAD studio and the competition. The 4 analytical criteria are the kinds of presenting media, the kinds of supportive media (such as verbal and gesture/facial data), stages of the review processes, and interaction between the designer and critics. The behavioral data are acquired by recording the design presentation and dialogue within 3 months. 2. A quantitative analysis: statistical analysis of the detailed reviewing data in the CAD studio and the competition. The four 4 analytical factors are the reviewing time, the number of reviewing of the same project, the comparison between different projects, and grades/comments. 3. Both the qualitative and quantitative data are cross analyzed and discussed, based on the theories of design thinking, design production/appreciation, and the appreciative system (Goodman 1978, 1984).The result of this study indicates that the interaction between design production and appreciation during the review processes could differ significantly. The review processes could be either linear or cyclic due to the influences from the kinds of media, the environmental discrepancies between studio and Internet, as well as cognitive thinking/memory capacity. The design production and appreciation seem to be more linear in CAD studio whereas more cyclic in the Internet environment. This distinction coincides with the complementary observations of designing as a linear process (Jones 1970; Simon 1981) or a cyclic movement (Schon and Wiggins 1992). Some phenomena during the two processes are also illustrated in detail in this paper.This study is merely a starting point of the research in design production and appreciation in the computer and network age. The future direction of investigation is to establish a theoretical model for the interaction between design production and appreciation based on current findings. The model is expected to conduct using revised protocol analysis and interviews. The other future research is to explore how design computing creativity emerge from the process of producing and appreciating.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	e9f7
authors	Bouchlaghem, N.
year	2000
title	Optimising the design of building envelopes for thermal performance
source	Automation in Construction 10 (1) (2000) pp. 101-112
summary	Computer models for the simulation of the thermal performance of buildings have been in existence for many decades. Although these programs save a great deal of time and effort in computational terms they still rely on designers intuition and experience to achieve optimum solutions for a design problem. This paper presents a computer model which, not only simulates the thermal performance of the building taking into account design variables related to the building's envelope and fabric, but also applies numerical optimization techniques to automatically determine the optimum design variables, which achieve the best thermal comfort conditions. The main optimization program is supported by a graphical model for the design of window shading devices, which uses the numerical coefficients that define the window shading to model shading devices taking into account seasonal variations in solar angles and solar gains. The rationale and methodology used to develop the models is outlined and the resulting programs are described with examples of outputs. Finally, it is concluded that the models offer a valuable decision support system for designers at an early design state for the optimization of the passive thermal performance achieving optimum thermal comfort and savings in heating and cooling energy.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

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