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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Reformat results as: short short into frame detailed detailed into frame

_id	9a0d
authors	Debevec, P.E., Taylor, C.J. and Malik, J.
year	1996
title	Modeling and rendering architecture from photographs: a hybrid geometry- and image-based approach
source	SIGGRAPH'96, New Orleans, Louisiana
summary	We present a new approach for modeling and rendering existing architectural scenes from a sparse set of still photographs. Our modeling approach, which combines both geometry-based and imagebased techniques, has two components. The first component is a photogrammetricmodelingmethodwhich facilitates the recovery of the basic geometry of the photographed scene. Our photogrammetric modeling approach is effective, convenient, and robust because it exploits the constraints that are characteristic of architectural scenes. The second component is a model-based stereo algorithm, which recovers how the real scene deviates from the basic model. By making use of the model, our stereo technique robustly recovers accurate depth from widely-spaced image pairs. Consequently, our approach canmodel large architectural environmentswith far fewer photographs than current image-based modeling approaches. For producing renderings, we present view-dependent texture mapping, a method of compositing multiple views of a scene that better simulates geometric detail on basic models. Our approach can be used to recover models for use in either geometry-based or image-based rendering systems. We present results that demonstrate our approach's ability to create realistic renderings of architectural scenes from viewpoints far from the original photographs.
series	other
last changed	2003/04/23 15:50

_id	1aa5
authors	Huangb, X., Gub, P. and Zernickea, R.
year	1996
title	Localization and comparison of two free-form surfaces
source	Computer-Aided Design, Vol. 28 (12) (1996) pp. 1017-1022
summary	Comparison of two free-form surfaces based on discrete data points is of paramount importance for reverse engineering. It can be used to assess the accuracy of the reconstructed surfaces and to quantify thedifference between two such surfaces. The entire process involves three main steps: data acquisition, 3D feature localization and quantitative comparison. This paper presents models and algorithms for 3D featurelocalization and quantitative comparison. Complex free-form surfaces are represented by bicubic parametric spline surfaces using discrete points. A simple yet effective pseudoinverse algorithm was developed andimplemented for localization. It consists of two iterative operations, namely, constructing a pseudo transformation matrix and point matching. A computing algorithm was developed to compare two such surfacesusing optimization techniques. Since this approach does not involve solving non-linear equations for the parameters of positions and orientations, it is fast and robust. The algorithm was implemented and testedwith several examples. It is effective and can be used in industry for sculptured surface comparison.
keywords	Free-Form Sculptured Surface, Localization, Point Matching, Surface Comparison
series	journal paper
last changed	2003/05/15 21:33

_id	39fb
authors	Langton, C.G.
year	1996
title	Artificial Life
source	Boden, M. A. (1996). The Philosophy of Artificial Life, 39-94.New York and Oxford: Oxford University Press
summary	Artificial Life contains a selection of articles from the first three issues of the journal of the same name, chosen so as to give an overview of the field, its connections with other disciplines, and its philosophical foundations. It is aimed at those with a general background in the sciences: some of the articles assume a mathematical background, or basic biology and computer science. I found it an informative and thought-provoking survey of a field around whose edges I have skirted for years. Many of the articles take biology as their starting point. Charles Taylor and David Jefferson provide a brief overview of the uses of artificial life as a tool in biology. Others look at more specific topics: Kristian Lindgren and Mats G. Nordahl use the iterated Prisoner's Dilemma to model cooperation and community structure in artificial ecosystems; Peter Schuster writes about molecular evolution in simplified test tube systems and its spin-off, evolutionary biotechnology; Przemyslaw Prusinkiewicz presents some examples of visual modelling of morphogenesis, illustrated with colour photographs; and Michael G. Dyer surveys different kinds of cooperative animal behaviour and some of the problems synthesising neural networks which exhibit similar behaviours. Other articles highlight the connections of artificial life with artificial intelligence. A review article by Luc Steels covers the relationship between the two fields, while another by Pattie Maes covers work on adaptive autonomous agents. Thomas S. Ray takes a synthetic approach to artificial life, with the goal of instantiating life rather than simulating it; he manages an awkward compromise between respecting the "physics and chemistry" of the digital medium and transplanting features of biological life. Kunihiko Kaneko looks to the mathematics of chaos theory to help understand the origins of complexity in evolution. In "Beyond Digital Naturalism", Walter Fontana, Guenter Wagner and Leo Buss argue that the test of artificial life is to solve conceptual problems of biology and that "there exists a logical deep structure of which carbon chemistry-based life is a manifestation"; they use lambda calculus to try and build a theory of organisation.
series	other
last changed	2003/04/23 15:14

_id	cf2015_190
id	cf2015_190
authors	Datta, Sambit
year	2015
title	Accuracy and Ambiguity: Geometric reconstruction of a seventh century stone temple in Hanchey, Cambodia
source	The next city - New technologies and the future of the built environment [16th International Conference CAAD Futures 2015. Sao Paulo, July 8-10, 2015. Electronic Proceedings/ ISBN 978-85-85783-53-2] Sao Paulo, Brazil, July 8-10, 2015, pp. 190-202.
summary	Modeling the fragmented and heavily eroded remains of early temple architecture poses several challenges in accurate reconstruction of shape and form from digitally acquired datasets. This paper describes a collection of stepwise ad-hoc modeling methods that can re-assemble ambiguous and fragmentary evidence to provide a robust and empirical platform for the reconstruction of ruined temples. The paper presents the results of the method and the degree of accuracy and ambiguity in the acquisition, processing and reconstruction phases. A key aspect of the method is the maintenance of multiple “ground truths” from plural sources of partial evidence. Key findings of the paper demonstrate early results from the manipulation of geometric modeling primitives based on point collections, an advance in extending the classical tools of architectural analysis and comparison. The problem of accuracy and ambiguity in these methods and their algorithmic implementation is the subject of further investigation.
keywords	Digital data acquisition, flexible modeling, heritage reconstruction and visualization
series	CAAD Futures
email
last changed	2015/06/29 07:55

_id	121a
authors	Karner, K., Klaus, A., Bauer, J. and Zach, Ch.
year	2003
title	MetropoGIS: A City Modeling System
source	CORP 2003, Vienna University of Technology, 25.2.-28.2.2003 [Proceedings on CD-Rom]
summary	We report on a new system to generate photo-realistic 3D models of real cities. So far, we focus on the accurate geometric andradiometric modeling of man-made structures. The modeling process starts with a 3D block model obtained from aerial images, aerial laser scans or GIS data. This block model is further augmented with geo-referenced terrestrial images of the facades. Theterrestrial images are either captured using a mobile multi-sensor-platform or an off-the-shelf digital camera. The relative orientationof terrestrial images is calculated automatically and fitted towards the 3D block model with minimized human input using vanishingpoints. 2D image features like lines are extracted from the images and used to model 3D lines using line matching techniques. Theextraction of dense 3D point clouds on the facades is based on a hierarchical point matching strategy over multiple oriented images.Facades are found by robust fitting of plane hypotheses through these 3D line and point clouds. The introduced city modeling systemdelivers a fully 3D geographic information data set and is called MetropoGIS.
series	other
email
last changed	2003/03/11 20:39

_id	ijac202220216
id	ijac202220216
authors	Keyvanfar, Ali; Arezou Shafaghat; Muhamad SF Rosley
year	2022
title	Performance comparison analysis of 3D reconstruction modeling software in construction site visualization and mapping
source	International Journal of Architectural Computing 2022, Vol. 20 - no. 2, pp. 453–475
summary	Unmanned aerial vehicle (UAV) technology has overcome the limitations of conventional construction management methods using advanced and automated visualization and 3D reconstruction modeling techniques. Although the mapping techniques and reconstruction modeling software can generate real-time and high-resolution descriptive textural, physical, and spatial data, they may fail to develop an accurate and complete 3D model of the construction site. To generate a quality 3D reconstruction model, the construction manager must optimize the trade-offs among three major software-selection factors: functionalities, technical capabilities, and the system hardware specifications. These factors directly affect the robust 3D reconstruction model of the construction site and objects. Accordingly, the purpose of this research was to apply nine well-established 3D reconstruction modeling software tools (DroneDeploy, COLMAP, 3DF+Zephyr, Autodesk Recap, LiMapper, PhotoModeler, 3D Survey, AgiSoft Photoscan, and Pix4D Mapper) and compare their performances and reliabilities in generating complete 3D models. The research was conducted in an eco-home building at the University of Technology, Malaysia. A series of regression analyses were conducted to compare the performances of the selected 3D reconstruction modeling software in alignment and registration, distance computing, geometric measurement, and plugin execution. Regression analysis determined that among the software programs, LiMapper had the strongest positive linear correlation with the ground truth model. Furthermore, the correlation analysis showed a statistically significant p-value for all software, except for 3D Survey. In addition, the research found that Autodesk Recap generated the most-robust and highest-quality dense point clouds. DroneDeploy can create an accurate point cloud and triangulation without using many points as required by COLMAP and LiMapper. It was concluded that most of the software is robustly, positively, and linearly correlated with the corresponding ground truth model. In the future, other factors involving software selection should be studied, such as vendor-related, user-related, and automation factors.
keywords	Construction site visualization, unmanned aerial vehicle, photogrammetry, 3D reconstruction modeling, multi-view-stereopsis, structure-from-motion, ANOVA and regression analysis
series	journal
last changed	2024/04/17 14:29

_id	acadia13_327
id	acadia13_327
authors	Raspall, Felix; Imbern, Matías; Choi, William
year	2013
title	Adaptive Tectonic Systems: Parametric Modeling and Digital Fabrication of Precast Roofing Assemblies Toward Site-Specific Design Response
doi	https://doi.org/10.52842/conf.acadia.2013.327
source	ACADIA 13: Adaptive Architecture [Proceedings of the 33rd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-926724-22-5] Cambridge 24-26 October, 2013), pp. 327-336
summary	In order to design adaptable systems, the requirements include flexible models to generate a range of alternative configurations, analytical engines to evaluate performance, and well-defined selection criteria to identify suitable options. In most cases, design processes driven by performance concentrate on environmental or structural parameters; fabrication often remains disconnected from the generative process. Nonetheless, as design-to-fabrication methods become more robust, it is possible to extend the digital process to introduce fabrication variables to the definition of the project. The main focus of the research presented in this paper is the development of a digital and material workflow that connects design, structural and climate-specific topics (such as sun lighting and water drainage) toward producing a range of efficient structural and spatial assemblies.A case study serves as the main support for this investigation. Miguel Fisac’s “bones” is a light-weight roof system developed during the 1960’s, which had a very well-calibrated structural, natural-lighting, drainage and construction performance, as well as a highly refined spatial output. The system, despite its intelligence, lacked the flexibility possible today: using digital technologies, it can adapt to a significantly wider range of applications. Using “bones” as a starting point, this research develops a design-to-fabrication workflow that attempts to move forward tools, material systems and processes to enable an adaptable tectonic system.This paper describes the background research, concept, form-finding, construction process, methodology, results and conclusions of the investigation.
keywords	complex systems, parametric design, integrated design and fabrication, mass customization, Miguel Fisac bones, adaptive material system
series	ACADIA
type	Normal Paper
email
last changed	2022/06/07 08:00

_id	acadia05_226
id	acadia05_226
authors	Biloria, N., Oosterhuis, K. and Aalbers, C.
year	2005
title	Design Informatics
doi	https://doi.org/10.52842/conf.acadia.2005.226
source	Smart Architecture: Integration of Digital and Building Technologies [Proceedings of the 2005 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 0-9772832-0-8] Savannah (Georgia) 13-16 October 2005, pp. 226-235
summary	The research paper exemplifies a novel information integrated design technique developed at ONL (Oosterhuis and Lenard), Netherlands, specifically appropriated for envisaging complex geometric forms. The ‘informed design technique’, apart from being highly instrumental in conceptualizing and generating the geometric component constituting architectural form in a parametric manner, is also efficiently utilized for precise computer aided manufacturing and construction of the speculated form. Geometric complexities inherent in contemporary architectural constructs and the time spent in appropriation of such topologies, fueled the ‘informed design’ approach, which caters to issues of timely construction, precision oriented design and production (visual and material) and parametric modeling attuned to budgetary fluctuations. This design-research approach has been tested and deployed by ONL, for conceiving ‘the Acoustic Barrier’ project, Utrecht Leidsche Rijn in the Netherlands and is treated as a generic case for exemplifying the ‘informed design’ technique in this research paper. The design methodology encourages visualizing architectural substantiations from a systems perspective and envisages upon a rule based adaptive systems approach involving extrapolation of contextual dynamics/ground data in terms of logical ‘rules’. These rules/conditionalities form the basis for spawning parametric logistics to be mapped upon geometric counterparts exemplifying the conception. The simulated parametric relations bind dimensional aspects (length, width, height etc.) of the geometric construct in a relational manner, eventually culminating in a 3D spatial envelope. This evolved envelope is subsequently intersected with a ‘parametric spatio-constructive grid’, creating specific intersecting points between the two. The hence extorted ‘point cloud’ configuration serves as a generic information field concerning highly specific coordinates, parameters and values for each individual point/constructive node it embodies. The relations between these points are directly linked with precise displacements of structural profiles and related scaling factors of cladding materials. Parallel to this object oriented modeling approach, a detailed database (soft/information component) is also maintained to administer the relations between the obtained points. To be able to derive constructible structural and cladding components from the point cloud configuration customized Scripts (combination of Lisp and Max scripts) process the point cloud database. The programmed script-routines, iteratively run calculations to generate steel-wireframes, steel lattice-structure and cladding panels along with their dimensions and execution drawing data. Optimization-routines are also programmed to make rectifications and small adjustments in the calculated data. This precise information is further communicated with CNC milling machines to manifest complex sectional profiles formulating the construct hence enabling timely and effective construction of the conceptualized form.
series	ACADIA
email
last changed	2022/06/07 07:54

_id	ascaad2006_paper6
id	ascaad2006_paper6
authors	Biloria, Nimish; Kas Oosterhus, and Cas Aalbers
year	2006
title	Design Informatics: a case based investigation into parametric design scripting and CNC based manufacturing techniques
source	Computing in Architecture / Re-Thinking the Discourse: The Second International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2006), 25-27 April 2006, Sharjah, United Arab Emirates
summary	The research paper exemplifies a novel information integrated design technique developed at ONL (Oosterhuis and Lenard), Netherlands, specifically appropriated for manifesting complex geometric forms. The ‘informed design technique’, apart from being highly instrumental in conceptualizing and generating the geometric component constituting architectural form in a parametric manner, is also efficiently utilized for precise computer aided manufacturing and construction of the speculated form. Geometric complexities inherent in contemporary architectural constructs and the time spent in appropriation of such topologies, fueled the ‘informed design’ approach, which caters to issues of timely construction, precision oriented design and production (visual and material) and parametric modeling attuned to budgetary fluctuations. This designresearch approach has been tested and deployed by ONL, for conceiving ‘the Acoustic Barrier’ project, Utrecht Leidsche Rijn in the Netherlands and is treated as a generic case for exemplifying the ‘informed design’ technique in this research paper. The design methodology encourages visualizing architectural substantiations from a systems perspective and envisages upon a rule based adaptive systems approach involving extrapolation of contextual dynamics/ground data in terms of logical ‘rules’. These rules/conditionalities form the basis for spawning parametric logistics to be mapped upon geometric counterparts exemplifying the conception. The simulated parametric relations bind dimensional aspects (length, width, height etc.) of the geometric construct in a relational manner, eventually culminating in a 3D spatial envelope. This evolved envelope is subsequently intersected with a ‘parametric spatio-constructive grid’, creating specific intersecting points between the two. A pattern of points attained from this intersection: ‘the point cloud’ serves as a generic information field concerning highly specific coordinates, parameters and values for each individual point/constructive node it embodies. The relations between these points are directly linked with precise displacements of structural profiles and related scaling factors of cladding materials. Parallel to this object oriented modeling approach, a detailed database (soft/information component) is also maintained to administer the relations between the obtained points. To be able to derive constructible structural and cladding components from the point cloud configuration customized Scripts (combination of Lisp and Max scripts) process the point cloud database. The programmed scriptroutines, iteratively run calculations to generate steel-wire frames, steel lattice-structure and cladding panels along with their dimensions and execution drawing data. Optimization-routines are also programmed to make rectifications and small adjustments in the calculated data. This precise information is further communicated with CNC milling machines to manifest complex sectional profiles formulating the construct thus enabling timely and effective construction of the conceptualized form.
series	ASCAAD
email
last changed	2007/04/08 19:47

_id	caadria2006_237
id	caadria2006_237
authors	N.BILORIA, K.OOSTERHUIS, C. AALBERS
year	2006
title	DESIGN INFORMATICS: (A case based investigation into parametric design, scripting and CNC based manufacturing techniques)
doi	https://doi.org/10.52842/conf.caadria.2006.x.q9e
source	CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 237-244
summary	The research paper exemplifies a novel information integrated design technique developed at ONL (Oosterhuis and Lenard), Netherlands, specifically appropriated for envisaging complex geometric forms. The ‘informed design technique’, apart from being highly instrumental in conceptualizing and generating the geometric component constituting architectural form in a parametric manner, is also efficiently utilized for precise computer aided manufacturing and construction of the speculated form. Geometric complexities inherent in contemporary architectural constructs and the time spent in appropriation of such topologies, fueled the ‘informed design’ approach, which caters to issues of timely construction, precision oriented design and production (visual and material) and parametric modeling attuned to budgetary fluctuations. This design-research approach has been tested and deployed by ONL, for conceiving ‘the Acoustic Barrier’ project, Utrecht Leidsche Rijn in the Netherlands and is treated as a generic case for exemplifying the ‘informed design’ technique in this research paper. The design methodology encourages visualizing architectural substantiations from a systems perspective and envisages upon a rule based adaptive systems approach involving extrapolation of contextual dynamics/ground data in terms of logical ‘rules’. These rules/conditionalities form the basis for spawning parametric logistics to be mapped upon geometric counterparts exemplifying the conception. The simulated parametric relations bind dimensional aspects (length, width, height etc.) of the geometric construct in a relational manner, eventually culminating in a 3D spatial envelope. This evolved envelope is subsequently intersected with a ‘parametric spatio-constructive grid’, creating specific intersecting points between the two. The hence extorted ‘point cloud’ configuration serves as a generic information field concerning highly specific coordinates, parameters and values for each individual point/constructive node it embodies. The relations between these points are directly linked with precise displacements of structural profiles and related scaling factors of cladding materials. Parallel to this object oriented modeling approach, a detailed database (soft/information component) is also maintained to administer the relations between the obtained points. To be able to derive constructible structural and cladding components from the point cloud configuration customized Scripts (combination of Lisp and Max scripts) process the point cloud database. The programmed script-routines, iteratively run calculations to generate steel-wire frames, steel lattice-structure and cladding panels along with their dimensions and execution drawing data. Optimization-routines are also programmed to make rectifications and small adjustments in the calculated data. This precise information is further communicated with CNC milling machines to manifest complex sectional profiles formulating the construct hence enabling timely and effective construction of the conceptualized form.
series	CAADRIA
email
last changed	2022/06/07 07:49

_id	ecaade2016_085
id	ecaade2016_085
authors	Okuda, Shinya and Zhenyi, Lin
year	2016
title	Groove Light - Adding Physical Reality to Virtual Projections Using 3D-printed Lanterns
doi	https://doi.org/10.52842/conf.ecaade.2016.1.113
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 113-120
summary	How might 21st-century computational technologies enhance lighting functionality in architecture? The Groove Light provokes relationships between light and shadow, adding a new dimension to future lighting. A series of distinctive and complex 3D-printed lanterns, which cast identical patterns of geometric shadows, creates the optical illusion that they are floating above a continuous, geometric carpet of shadows. The authors tested this concept in three steps: 1. 3D printability, 2. a lighting test and 3. interactivity. The paper also reports the effectiveness of a selective and custom support strategy for printing overhanging geometries with fused deposition modelling (FDM) 3D printers and further highlights differences between the computational models and physical prototypes in the quest for 'point' light sources.
wos	WOS:000402063700013
keywords	Digital Physicality; 3D Printing; Self-supporting Geometry; Stereographic Projection; Projection Mapping
series	eCAADe
email
last changed	2022/06/07 08:00

_id	d935
authors	Pasko, A.A., Adzhiev, V.D., Sourin, A.I. and Savchenko, V.V.
year	1995
title	Function representation in geometric modeling: concepts, implementation and applications
source	The Visual Computer, 11 (8) 429-446
summary	Geometric modeling using continuous real functions of several variables is discussed. Modeling concepts include sets of objects, operations and relations. An object is a closed point set of n-dimensional Euclidean space with a defining inequality f x x xn ( , ,..., ) 1 2 0 °Ÿ . Transformations of a defining function are described for the set-theoretic operations, blending, offsetting, bijective mapping, projection, Cartesian product and metamorphosis. Inclusion, point membership and intersection relations are described. In the implemented interactive modeling system, we use highlevel geometric language that provides extendibility of the modeling system by input symbolic descriptions of primitives, operations and predicates. This approach supports combinations of representational styles, including constructive geometry, sweeping, soft objects, voxel-based objects, deformable and other animated objects. Application examples of aesthetic design, collisions simulation, NC machining, range data processing, and 3D texture generation are given.
series	journal paper
last changed	2003/04/23 15:50

_id	63e6
authors	Af Klercker, Jonas
year	1996
title	Visualisation for Clients - One Example of Educating CAAD for Practice
doi	https://doi.org/10.52842/conf.ecaade.1996.017
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 17-24
summary	During the spring term 1996, 13 students of the 3rd and 4th year at the School of Architecture at Lund University had the opportunity to make a one semester CAAD project. 11 students chose the individual exercise to use computer media for developing a small architectural design in interaction with a client. The focus was set more on visualization and the process of communicating ideas, feelings and practical solutions between architect and client and visa versa rather than concentrated on the final product. This paper describes the process of the project and the reflections of the participants. It will discuss problems from the teachers point of view.
series	eCAADe
email
more	http://www.caad.lth.se/ECAADE/
last changed	2022/06/07 07:54

_id	7135
authors	Arumi-Noe, F.
year	1996
title	Algorithm for the geometric construction of an optimum shading device
source	Automation in Construction 5 (3) (1996) pp. 211-217
summary	Given that there is a need to shade a window from the summer sun and also a need to expose it to the winter sun, this article describes an algorithm to design automatically a geometric construct that satisfies both requirements. The construct obtained represents the minimum solution to the simultaneous requirements. The window may be described by an arbitrary convex polygon and it may be oriented in any direction, and it may be placed at any chosen latitude. The algorithm consists of two sequential steps: first to find a winter solar funnel surface; and the second to clip the surface subject to the summer shading conditions. The article introduces the design problem, illustrates the results through two examples, outlines the logic of the algorithm and includes the derivation of the mathematical relations required to implement the algorithm. This work is part of the MUSES project, which is a long term research effort to integrate Energy Consciousness with Computer Graphics in Architectural Design.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	40ee
authors	Biagini, Carlo
year	1996
title	CAAD in the Transformability Evaluation of Historical Buildingsof Historical Buildings
doi	https://doi.org/10.52842/conf.ecaade.1996.055
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 55-58
summary	In the execution of a research, which was intended to identify methods and instruments for transformability evaluation of historical buildings, CAAD was usefully employed in the decision-making process at different levels. From an operative point of view, it was fundamental instruments for the acquisition of typomorphological data inherent to pre-existent buildings. It allowed us to create an archive of information which can be easily and flexibly up-dated. In fact the critical evaluation of these buildings is based on the identification of structural patterns which have characterized the typological evolution of the urban structure, and thus the different historical stratifications have to be carefully catalogued, profoundly analyzed and compared one with the other. CAAD was even more effective during the phase of meta-designing checking concerning the choices effected for conversion of old buildings, since it was possible to prefigure different scenarios according to formulated hypotheses and this gave us the opportunity to evaluate their effective practicability in relation to typo- morphological congruence and logical and formal connection between the old building and new design proposals.
series	eCAADe
last changed	2022/06/07 07:54

_id	c4be
authors	Bock, T., Stricker, D., Fliedner, J. and Huynh, T.
year	1996
title	Automatic generation of the controlling-system for a wall construction robot
source	Automation in Construction 5 (1) (1996) pp. 15-21
summary	In this article we present several important aspects of a software system control. This is designed and developed for a wall assembly robot in an European Esprit III project called ROCCO, RObot assembly system for Computer integrated COnstruction. The system consists of an off-line program for planning of complex assembly tasks and for generating robot actions. The execution is controlled through an adaptive user interface and gives the user the possibilities to switch in an on-line mode command. All the software is designed with the object-oriented concept and implemented in C + +. The wall assembly system is organized on the base of the successive generation of different types of actions, called "Mission", "Task", and "Action". They represent different levels of assembly complexities. Those different actions are organized in a tree structure. Furthermore, the software system can be connected to a CAD-robot simulation software for checking the robot assembly motions. Added to the control system, a recovery module has been implemented for all possible errors during the construction. First the OO-model of the world and of robot activities will be presented. Secondly, several aspects of the algorithm will be explained and at the end we will show the strategy used for the robot motion.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	ddssup9604
id	ddssup9604
authors	Boelen, A.J.
year	1996
title	Impact-Analysis of Urban Design Realtime impact-analysis models for urban designers
source	Timmermans, Harry (Ed.), Third Design and Decision Support Systems in Architecture and Urban Planning - Part two: Urban Planning Proceedings (Spa, Belgium), August 18-21, 1996
summary	The past five years Prof Dr Jr T.M. de Jong, professor in environmental planning and sustainability at the Technical University of Delft, has developed a theoretical foundation for the analysis of urban design on the ecological, technical, economical, cultural and political impacts of morphologic interventions on different levels of scale. From september 1994 Jr AJ. Boelen (Urban Design Scientist and Knowledge Engineer) started a research project at the same university to further explore the possibilities of these theories and to develop impact evaluation models for urban design and development with the theoretical work of De Jong as a starting point. The paper discusses the development of a design and decision support system based on these theories. For the development of this system, techniques like object-orientation, genetic algorithms and knowledge engineering are used. The user interface, the relation between the real world, paper maps and virtual maps and the presentation of design-interventions and impacts caused by the interventions are important issues. The development-process is an interactive step by step process. It consists of the making of a prototype of the system, testing the theory and hypothe-sisses the system is based on, by applying tests end adjusting the theory and hypothesisses where needed. Eventually the system must be able to act as an integrator of many different models already developed or still to be developed. The structure of the system will allow easy future expansion and adjustment to changing insights. The logic used to develop the basic theory on which this system is founded makes it possible to even introduce and maintain rather subjective aspects like quality or appraisal as impacts that can be evaluated. In a previously developed system "Momentum" this was proved to work effectively for the national level. In this project we will - amongst other things - try to prove the effectiveness of impact-evaluation for other levels of scale.
series	DDSS
email
last changed	2003/11/21 15:16

_id	4931
authors	Breen, Jack
year	1996
title	Learning from the (In)Visible City
doi	https://doi.org/10.52842/conf.ecaade.1996.065
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 65-78
summary	This paper focuses on results and findings of an educational project, in which the participating students had to develop a design strategy for an urban plan by using and combining endoscopic and computational design visualisation techniques. This educational experiment attempted to create a link between the Media research programme titled 'Dynamic Perspective' and an educational exercise in design composition. It was conceived as a pilot study, aimed at the investigation of emerging applications and possible combinations of different imaging techniques which might be of benefit in architectural and urban design education and potentially for the (future) design practice. The aim of this study was also to explore the relationship between spatial perception and design simulation. The point of departure for the student exercise was an urban masterplan which the Dynamic Perspective research team prepared for the workshop 'the (in)visible city' as part of the 1995 European Architectural Endoscopy Association Conference in Vienna, Austria. The students taking part in the exercise were asked to develop, discuss and evaluate proposals for a given part of this masterplan by creating images through different model configurations using optical and computer aided visualisation techniques besides more traditional design media.The results of this project indicate that an active and combined use of visualisation media at a design level, may facilitate communication and lead to a greater understanding of design choices, thus creating insights and contributing to design decision-making both for the designers and for the other participants in the design process.
series	eCAADe
email
more	http://www.bk.tudelft.nl/Media/
last changed	2022/06/07 07:54

_id	9530
authors	Broadhurst, S.J., Cockerham, G., Taylor, N. and Pridmore, T.
year	1996
title	Automatic task modelling for sewer studies
source	Automation in Construction 5 (1) (1996) pp. 61-71
summary	Research into the development of robotic modules is discussed in the context of cost-effective, small bore, non-man entry (NME) sewer renovation. Following an introduction to the engineering problem or task and the respective task-associated sensing system, interest is centred upon suitably robust task kinematics and control, where predictive modelling is implemented employing the GRASP robotic simulation software package. The physical prototype and its accompanying environment are discussed and general conclusions drawn.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	c05e
authors	Brown, Andy and Nahab, May
year	1996
title	Human Interpretation of Computer Generated Architectural Images
source	Approaches to Computer Aided Architectural Composition [ISBN 83-905377-1-0] 1996, pp. 61-70
summary	The hardware and software used by architects to produce drawings and rendered images (static and dynamic) has advanced over the past decade to the point where it is now routine for architects to add rendered (and otherwise manipulated) images to the more routine 2D drawing as a product to convey the building to others. Although the 2D drawing (as plan section, elevation or detail) remains the fundamental and most prevalent kind of image being produced by architects, we regard it as timely to take stock of the effect of how we interpret the computer generated images that are being produced. We want to address the question of how humans, with a wide range of backgrounds and predispositions interpret such images. This paper takes previous studies which consider image interpretation and image generation by computer and begins to apply the techniques and jcndings to contemporary CAD image making.
keywords
series	other
email
last changed	1999/04/08 17:16

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