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 ijac20097101
id ijac20097101
authors Boulaassal, H.; Landes, T.; Grussenmeyer, P.
year 2009
title Automatic Extraction of Planar Clusters and their Contours on Building Facades Recorded by Terrestrial Laser Scanner
source International Journal of Architectural Computing vol. 7 - no. 1, 1-20
summary Since 3D city models need to be realistic not only from a bird's point of view, but also from a pedestrian's point of view, the interest in the generation of 3D façade models is increasing. This paper presents two successive algorithms for automatically segmenting building façades scanned by Terrestrial Laser Scanner (TLS) into planar clusters and extracting their contours. Since majority of façade components are planes, the topic of automatic extraction of planar features has been studied. The RANSAC algorithm has been chosen among numerous methods. It is a robust estimator frequently used to compute model parameters from a dataset containing outliers, as it occurs in TLS data. Nevertheless, the RANSAC algorithm has been improved in order to extract the most significant planar clusters describing the main features composing the building façades. Subsequently, a second algorithm has been developed for extracting the contours of these features. The innovative idea presented in this paper is the efficient way to detect the points composing the contours. In order to evaluate the performances of both algorithms, they have successively been applied on samples with different characteristics, i.e. densities, types of façades and size of architectural details. Finally, a quality evaluation based on the comparison of planar clusters and contours obtained manually has been carried out. The results prove that the proposed algorithms deliver qualitative as well as quantitative satisfactory results and confirm that both algorithms are reliable for the forthcoming 3D modelling of building façades.
series journal
last changed 2009/06/23 06:07

_id ecaadesigradi2019_210
id ecaadesigradi2019_210
authors Castriotto, Caio, Giantini, Guilherme and Celani, Gabriela
year 2019
title Biomimetic Reciprocal Frames - A design investigation on bird's nests and spatial structures
source Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 1, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 613-620
summary Reciprocal Frame (RF) is a constructive system typically applied with timber, since it is composed by discrete elements with short dimensions. It allows the construction of large spans and complex geometries. This kind of structure has been addressed by recent research projects that aim to produce it using computational tools and digital fabrication techniques. Moreover, the enhancement of these technologies enabled the integration of simulations of biological processes into the design process as a way to obtain better and optimal results, which is known as Biomimetics. This paper describes the development of a spatial structure that combines the principles of RF and the assembly process of natural agents, such as birds, in a digital environment. The tools used for the generation of the structure were Rhinoceros, Grasshopper and different add-ons, such as Culebra, Kangaroo, Pufferfish and Weaverbird.
keywords Biomimetics; Reciprocal Frame; Nexorade; Computational Design; Agent-Based System
series eCAADeSIGraDi
last changed 2019/08/26 20:26

_id ecaade2008_049
id ecaade2008_049
authors Dokonal, Wolfgang
year 2008
title Creating and Using 3D City Models
source Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 223-230
summary City modelling is a topic which has been on the agenda for a long time. Today crucial questions concerning the creation of a city model are resolved. The vision of the automatic generation of the 3D geometry of a city out of high resolution digital aerial images is a reality now. These new developments decreased the cost for creating and maintaining a 3D city model of a complete city significantly. This paper wants to outline the ‘history’ of 3D city models and show recent developments in this field. An overview about current applications and uses in this field in Austria and the implementation into daily work is shown with examples (Graz and Vienna city models). Additionally the new developments like Street View in Google Earth or Bird’s Eye in Virtual earth are discussed in relation to their 3D ‘relatives’.
keywords 3Dcity Models, GIS, Google Earth, Virtual Earth
series eCAADe
last changed 2008/09/09 13:55

_id ecaade2008_092
id ecaade2008_092
authors Hofmeyer, Herm; Kerstens, J.G.M.
year 2008
title A Bird’s-Eye View of Cyclic Spatial-Structural Transformations, Grammar Based Design, and Structural Optimization
source Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 483-492
summary Recently, in the research field of combined architecture and structural design, the idea of a so-called research engine has been developed. During its development, initially the intention was to develop a design-support tool, however, it now becomes clear that it may serve as a general framework for several applications. In this paper the new possibilities for the applications will be presented. As a result, a bird’s-eye view is developed on a set of applications that are often presented separately and without a larger framework in literature. In conclusion, several applications used for CAAD and CASD (Computer Aided Structural Design) can be seen as derivatives of a research engine. The other way round, the research engine can be modified and new applications may result.
keywords Generative design, Optimisation, Spatial Design, Structural Design, Automated design
series eCAADe
last changed 2008/09/09 13:55

_id e6ba
authors Jepson, W. and Friedman, S.
year 1998
title It's a Bird, It's a Plane, It's a Supersystem
source Planning v.64(no.7), pp. 4-7
summary Contributed by Susan Pietsch (
keywords 3D City Modeling, Development Control, Design Control
series other
last changed 2001/06/04 18:38

_id ecaade2012_113
id ecaade2012_113
authors Jutraz, Anja ; Zupancic, Tadeja
year 2012
title Digital system of tools for public participation and education in urban design: Exploring 3D ICC
source Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 383-392
wos WOS:000330322400039
summary This article is a starting point for the development of experiential urban co-design interfaces to enhance public participation in local urban projects and to be also used as a communication and collaboration tool in urban design. It is based on the previous research involving 3D city models utilized as understandable design interfaces for the non-technical public (Jutraz, Zupancic, 2011), where we have already explored different views (pedestrian, intermediate and bird’s-eye view), as well as the means by which the information obtained from these different views may be combined by shifting between viewpoints. Previous work was conducted in the “street lab” as well as the Urban Experimental Lab, which was developed specifi cally for the public’s participation in urban planning (Voigt, Kieferle, Wössner, 2009). Presented in this article is the next step that explores the immersive collaboration environment 3D ICC [1], formerly known as Teleplace. The environment was developed for effi cient collaboration and remote communication and shifts the research focus towards questions regarding how to employ both labs as interfaces between the non-technical public and design professionals. As we are facing the lack of digital systems for public participation and education in urban design, different digital tools for communication and collaboration should be combined into a new holistic platform for design. A digital system of tools needs to be developed that supports the urban design decision-making process and focuses on improved final solutions and increased satisfaction amongst all participants. In this article the system of digital tools for public participation, which include communication, collaboration and education, will be also defi ned, with its basic characteristics and its elements.
keywords Digital system of tools; collaboration; 3D model; public participation; urban design
series eCAADe
last changed 2014/04/14 11:07

_id 8c02
authors Martens, B.
year 1997
title High-end developments within the framework of dynamic-endoscopic viewing of models.
source Architectural and Urban Simulation Techniques in Research and Education [Proceedings of the 3rd European Architectural Endoscopy Association Conference / ISBN 90-407-1669-2]
summary As far back as the seventies the first experiences with endoscopic viewing of models were made in the field of architecture and urban construction by introducing an endoscope into the model of the planned architectural and urban space. The monitor shows an approximation of real view of the new portion of building or city, resp. The endoscopic picture provides the viewer with the usual height of viewing and roughly the perspective of a pedestrian, whereas very often planning models of houses and city quarters are evaluated predominantly by means of the bird's eye view. Meanwhile, mechanical installations of relatively limited means have been installed at several university sites making for a simulation of spatial experience by means of endoscopic rides through a construction model such as from the view of a car driver. This paper presents a sketch for a research proposal which is aimed at anticipating high-end-developments based on the experience acquired so far using low-cost-simulations.
keywords Architectural Endoscopy, Endoscopy, Simulation, Visualisation, Visualization, Real Environments
series EAEA
last changed 2005/09/09 08:43

_id 1408
authors Resnick, M.
year 1994
title Turtles, Termites, and Traffic Jams: Explorations in massively parallel microworlds
source The MIT Press, Cambridge, MA
summary Mitchel Resnick's book is one of the very few in the field of computing with an interdisciplinary discourse that can reach beyond the technical community to philsoophers, psychologists, and historians and sociologists of science. -- Sherry Turkle, Professor, Program in Science, Technology, and Society, Massachusetts Institute of Technology "Resnick's work provides a rare glimpse of what I am sure will become a new paradigm for research in education." -- Seymour Papert How does a bird flock...
series other
last changed 2003/04/23 13:14

_id acadia06_403
id acadia06_403
authors Taylor, Justin
year 2006
title The Value of Arrhythmic Sounds in Isolated Space
source Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 403-409
summary This study examines the impact of bringing sound uninterrupted from outside a building into isolated spaces within the building. Is a silent space less or more productive than a space that is filled with normal outside sounds? Can bringing sound in from the outside, thereby allowing the users an uninterrupted connection to the outside without being in physical proximity of the exterior, make a difference in the work they do?Using music in these spaces has become commonplace. However, this research chooses to address sounds that do not mask the arrhythmic sounds of the world. These random sounds might break a person’s concentration, just as a bird flying by a window breaks one’s concentration. Even though these sounds of nature, vehicles, and people interrupt, do they give a greater sense of place than ambient music? Do these breaks in concentration help keep an individual oriented and aware of time while increasing both comfort and connection to the work being done?To test this thesis, students working in an isolated studio/classroom space will be subjected to the same sounds students in rooms near the outside would hear. Sounds will be provided by a direct audio link with the outside of the building. Student reaction will be evaluated by a series of observations and surveys that will focus on any differences in the amount of time spent on task, the sense of productivity experienced, the overall sense of functioning at a higher level and the interaction of student and professor.
series ACADIA
last changed 2006/09/22 06:22

_id ddssar0029
id ddssar0029
authors Vries, B. de, Jessurun, J. and Engeli, M.
year 2000
title Development of an intuitive 3D sketching tool
source Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary 3D sketching is a confusing description of an architectural design means. It is confusing, or even worse apparently wrong, because traditional sketching is inherently a two dimensional activity. Though the final stages of design are currently well support by CAD packages, almost every architect prefers paper and pencil for the early sketching phases. The challenge is to develop a (computer supported) design tool that is as direct and intuitive as paper and pencil. The computer enables us to directly map our spatial mental model into 3D rendered images. As such a new kind of design means is created which is best indicated as an intuitive 3D sketching tool. Within the VR-DIS research programme of the Design Systems group of the Eindhoven University of Technology a tool named DDDoolz has been developed as an experimental 3D sketching tool. This paper will report on the preliminary phase in which several input devices such as mouse, bird and voice were tested. For this purpose simple prototype applications were implemented. Building upon these experiences a functional brief was defined for the sketching tool. The system design will be elaborated in this paper using OO schema techniques. Because of its limited yet powerful functionality, a comprehensive system description can be presented. The application has been used in a first years CAD course. Students’ experiences will be discussed demonstrating the strengths and weaknesses of DDDoolz. In conclusion, a list of improvements will be presented and the future directions are indicated that will be followed in regard of the continuing research on design and decision support tools.
series DDSS
last changed 2003/08/07 14:36

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