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	f2f6
authors	Papper, M., Danahy, J. and Baecker, R.
year	1991
title	Predictable Modelling Interaction Using High-Level Constraints: Making Objects Behave As They Would In Our Environment
doi	https://doi.org/10.52842/conf.acadia.1991.211
source	Reality and Virtual Reality [ACADIA Conference Proceedings / ISBN 1-880250-00-4] Los Angeles (California - USA) October 1991, pp. 211-222
summary	An approach for a graphical CAD system that is capable of representing physical and geometric aspects of a design using high-level constraints (HLCs) is presented. A prototype spatial planning system incorporating constraints is used in an interactive manner to refine designs by following an iterative approach which uses visual information to evaluate the design at each stage of iteration. High-level constraints aid this iterative approach by influencing (or constraining) the behavior of objects as they are interactively manipulated during the design stage of problem solving. High-level constraints also define the scaling properties of objects which are useful during the construction stage of problem solving. This system and its implications for the design of CAD systems incorporating HLCs are discussed.
series	ACADIA
email
last changed	2022/06/07 08:00

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

_id	sigradi2005_623
id	sigradi2005_623
authors	Paraizo, Rodrigo C.
year	2005
title	The construction of urban heritage narratives in hyperdocuments
source	SIGraDi 2005 - [Proceedings of the 9th Iberoamerican Congress of Digital Graphics] Lima - Peru 21-24 november 2005, vol. 2, pp. 623-627
summary	This paper studies mechanisms involved in various kinds of interaction in urban heritage cybertexts – grouped in navigational spaces, including computer games, databases and hyperdocuments – in order to reflect on how they can be improved both from the point of view of interaction. Therefore it also helps to contribute to the development of a laguage able to describe more accurately the works within the field of urban heritage digital representation. Also the production of such works is examined for improvement, especially the activity of writing the script, considering that this author is seldom involved in the programming and modeling. [Full paper in Portuguese]
series	SIGRADI
email
last changed	2016/03/10 09:57

_id	sigradi2014_152
id	sigradi2014_152
authors	Paraizo, Rodrigo Cury; Maria Cristina Nascentes Cabral, Erivelton Muniz da Silva
year	2014
title	Arquitetos estrangeiros no Rio de Janeiro no século XX: bancos de dados de objetos culturais [Foreign architects in Rio de Janeiro in the 20th century: cultural objects database]
source	SiGraDi 2014 [Proceedings of the 18th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-9974-99-655-7] Uruguay - Montevideo 12 - 14 November 2014, pp. 475-478
summary	This paper describes a database to catalog buildings designed and constructed by foreign architects that helped shape Rio de Janeiro in the 20th century. The website is in its preliminary stages, just after data collection, and the data structure and interface focus on further expanding possibilities for recording and showing the relationships among records, apart from records themselves. From the experience with the project, the paper also aims to discuss databases, in particular those representing cultural objects, as expressive forms, and some of their expressive mechanisms.
keywords	Databases of cultural objects; Rio de Janeiro; Hyperdocuments
series	SIGRADI
email
last changed	2016/03/10 09:57

_id	sigradi2021_137
id	sigradi2021_137
authors	Paraizo, Rodrigo, Coura, Maria Clara, Bastos, Beatriz and Vicente, Taís
year	2021
title	Augmented Reality Visualization of the Agache Plan
source	Gomez, P and Braida, F (eds.), Designing Possibilities - Proceedings of the XXV International Conference of the Ibero-American Society of Digital Graphics (SIGraDi 2021), Online, 8 - 12 November 2021, pp. 699–710
summary	This article describes a study on the 1930 Extension – Remodeling – Beautification Plan of the city of Rio de Janeiro, elaborated by Alfred Agache but only partially built, and its influences on the city. The research is divided in two stages: the first comprises the examination of primary and secondary sources in order to obtain a better understanding of the Plan, including the geolocation of the information gathered; the second involves the elaboration of this information in a 3D model and its visualization in two different Augmented Reality systems for public consultation by students and researchers.
keywords	augmented spaces, Rio de Janeiro, Alfred Agache, urban plan, 20th century.
series	SIGraDi
email
last changed	2022/05/23 12:11

_id	ecaade2007_219
id	ecaade2007_219
authors	Paraizo, Rodrigo
year	2007
title	Precise Uncertainty: Notes on Historical Modeling
doi	https://doi.org/10.52842/conf.ecaade.2007.367
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 367-374
summary	The objective of this work is to examine the current practice in historic buildings and sites modeling, in order to suggest some possible guidelines for future implementations in the field. These implementations are meant to improve the use of digital modeling as a scientific tool for historical research and heritage presentation, focusing first on information management and then discussing representation techniques for rendering levels of accuracy, departing from the experience in LAURD/PROURB to some future research possibilities.
keywords	3D modeling, urban heritage, hyperdocuments
series	eCAADe
email
last changed	2022/06/07 08:00

_id	3439
authors	Paranandi, M. and Sarawgi, T.
year	2002
title	Virtual Reality on Architecture: Enabling Possibilities
doi	https://doi.org/10.52842/conf.caadria.2002.309
source	CAADRIA 2002 [Proceedings of the 7th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 983-2473-42-X] Cyberjaya (Malaysia) 18–20 April 2002, pp. 309-316
summary	This paper examines the potential of Virtual Reality (VR) technologies for architectural applications. There has been a great deal of anticipation for its implications for architecture since Ivan Sutherland's first VR system in the 60's. The term VR was formalized and became popular in the main stream in the late 80's and became an industry by the late 90's. Although it has found good applications in Medicine, Flight Simulation, and Video Game Industry, its effect on architecture remains imperceptible. In the work that we review, we found that the success of VR in architecture has primarily been in the passive and exploratory applications. We also note that at the present time, the cost of VR systems is directly proportionate to the level of photorealism and immersion. We contend that photorealistic visualization and total immersion are not absolute prerequisites for making most design decisions. Hence, through this paper we bring to light the inherent promise of VR technology and the potential impact it could have with its current limitations, on the way we conventionally think and design our built environment pushing it beyond space and time constraints.
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	56d5
authors	Paranandi, Murali
year	1991
title	Observations on daylighting as demonstrated by the work of Alvar Aalto
source	Kent State University
summary	Daylight plays a dominant role in the works of Finnish architect Alvar Aalto. This thesis project investigates the role played by the natural light in his architectural works. One of the major concerns of this paper is to discover his intent behind the use of daylight, as well as to identify some of the techniques he devised to handle daylight. Literature research and physical model simulation studies have been incorporated as a method for the study. Significant works of Aalto have been surveyed. It has been observed that the use of daylight has been one of the preoccupations of Aalto since the design of Viipuri Library and Paimio Sanatorium. It was also observed that skylights play a prominent role in Aalto's architecture and that they are well developed and sophisticated devices. Some of the technical components and contributing factors of Aalto's skylights have been identified. Three case-studies were conducted through literature research and simulations. It was concluded that Aalto treats daylighting as one of the elements to embody sufficient psychological factors in man's built environment. It was discovered that the selection and the detailing of the skylights in each case has been predominantly guided by the climate, function, personal relationships, and the visual task of the individual space. Physical model simulations proved to be extremely helpful in understanding the modeling of the daylight and the spatial quality.
series	thesis:MSc
email
last changed	2003/03/03 09:14

_id	2466
authors	Paranandi, Murali
year	1996
title	CAAD as a Thinking Medium: A Strategy for Computer Aided Architectural Design Education
doi	https://doi.org/10.52842/conf.ecaade.1996.313
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 313-324
summary	This paper is organized into two parts. The first part is a commentary on the state of CAAD in response to the three very important pedagogical issues raised by Klerker in the conference theme narrative. The second part presents an introductory course developed and taught by the author that is based on a very simple premise; until intelligent CAAD (Computer Aided Architectural Design) programs become available, use what is available intelligently. The pedagogical model employed is explained. Some of the work done by the students of this course is included. The impact of this course on the curriculum in the school, the marketability of our students, and our future plans are summarized in the concluding remarks.
series	eCAADe
email
last changed	2022/06/07 08:00

_id	cb67
authors	Paranandi, Murali
year	1995
title	Roof Modeling Using Architectural Semantics Paradigm
doi	https://doi.org/10.52842/conf.acadia.1995.333
source	Computing in Design - Enabling, Capturing and Sharing Ideas [ACADIA Conference Proceedings / ISBN 1-880250-04-7] University of Washington (Seattle, Washington / USA) October 19-22, 1995, pp. 333-350
summary	This paper presents an approach to developing the computer aided architectural design systems investigating architectural semantics paradigm and void modeling representation as a method. A prototypical system called FRED(Facile Roof Editor & Designer) was developed incorporating structural logic and characteristics of roof in its basic representation and its operational behavior constrained by distinct attributes of a roof. Design of Hip, Pitch, Multi-level, and Flat roofs in Solid and Shell forms was made possible by extracting from an existing building or creating them as independent entities. The implementation successfully demonstrates that incorporating architectural semantics in the basic representation of a CAD system allows architects to create and test roof morphology fairly quickly, accurately, and fluidity for ideation.
keywords	Solid, Shell, Void Modeling, Architectural Semantics, Roofs, Pitch, Hip, Eaves, Ideation
series	ACADIA
email
last changed	2022/06/07 08:00

_id	33e9
authors	Paranandi, Murali
year	2001
title	Computer-Aided Daylight Simulation - A Hybrid Approach to Recording and Exploring Ideas
doi	https://doi.org/10.52842/conf.ecaade.2001.534
source	Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 534-539
summary	Accuracy and facility for iterative exploration are two of the most appealing promises of computer use in architectural design. In this paper, we discuss daylighting visualization, a very important aspect of the architectural design process, where computers do not yet fulfill these promises. We initiated a project to understand the reasons for this and to develop methods to deal with it in architectural design education. We report our work in progress, which combines creative thinking with scientific procedures to resolve the bottlenecks in computer graphics technologies making them suitable for design exploration. Our strategy seeks to fill the gaps in the science of photo realistic visualization with time tested physical modeling techniques. We present some of our student work based on this strategy.
keywords	Photorealism, Rendering, Daylighting Design, Visualization, Simulation, Scale (Physical) Models, Design Education
series	eCAADe
email
last changed	2022/06/07 08:00

_id	bb35
authors	Paranandi, Murali
year	2002
title	An Inquiry Into Computers in Design: When Cardboard Met Computer
doi	https://doi.org/10.52842/conf.caadria.2002.329
source	CAADRIA 2002 [Proceedings of the 7th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 983-2473-42-X] Cyberjaya (Malaysia) 18–20 April 2002, pp. 329-337
summary	This paper reflects on the experiences of teaching undergraduate design studios for past 4 years and presents a systematic investigation conducted in a classroom setting to further understand the role of computer in conceptual stages of design. A case study project inquiring the implications of using two different forms of media, namely cardboard and computer, for design development during conceptual stages is presented. Twelve novice designers were challenged to learn and use computers in a five-week design project. A conceptual framework for understanding the discovery and usefulness of computer in their design process was developed and tested. An analysis of the outcome indicated that computers played a positive role in student innovation, improving possibilities for discovery. It further revealed that the employing cardboard was useful in turning the abstract discoveries made by the computers into productive and useful design solutions. It also supported the notion that the novice designer’s use of photorealistic possibilities offered by computer visualization (rendering, animation) during conceptual stages of design had an effect of distraction rather than a design aid.
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	ijac201311403
id	ijac201311403
authors	Paranandi, Murali
year	2013
title	Making Ripples: Rethinking pedagogy in the digital age
source	International Journal of Architectural Computing vol. 11 - no. 4, 415-436
summary	This essay presents a pedagogical model for beginning design that introduces digital fabrication methods through an integrated learning framework. Ripples - a wall sculpture made collectively by all second year architecture and interior design students as a joint project between studio, graphics and shop—exemplifies design practice as a collective activity. In this example, solutions emerge out of interactions among multiple stakeholders through iterative experimentation and optimization. The goal of this essay is to provoke a rethinking of the status-quo pedagogical practices in order to incorporate digital fabrication within existing curricular structures as a core skill for beginning design students, rather than merely as a technology course elected by a few students. Conclusions suggest the relevance to broader contexts of lessons learned from this modest experiment.
series	journal
last changed	2019/05/24 09:55

_id	acadia13_429
id	acadia13_429
authors	Parascho, Stefana; Baur, Marco; Baharlou, Ehsan; Knippers, Jan; Menges, Achim
year	2013
title	Agent-Based Model for the Development of Integrative Design Tools
doi	https://doi.org/10.52842/conf.acadia.2013.429
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. 429-430
summary	The project describes the development of a tool for implementing integrative design processes based on an agent-based system and used for the generation of freeform structures.
keywords	agent-based model, integrative design, self-organization, complex systems
series	ACADIA
type	Research Poster
email
last changed	2022/06/07 08:00

_id	ecaade2013_230
id	ecaade2013_230
authors	Parascho, Stefana; Baur, Marco; Knippers, Jan and Menges, Achim
year	2013
title	Design Tools for Integrative Planning
doi	https://doi.org/10.52842/conf.ecaade.2013.2.237
source	Stouffs, Rudi and Sariyildiz, Sevil (eds.), Computation and Performance – Proceedings of the 31st eCAADe Conference – Volume 2, Faculty of Architecture, Delft University of Technology, Delft, The Netherlands, 18-20 September 2013, pp. 237-246
summary	The performance of an architectural object is highly difficult to both define and measure in its complexity since it is integrating a constantly increasing amount of information, from concrete measurable characteristics to the subjective perception of individual users. The question arising though is how to predict the performance of a building and influence the design in order to increase it according to a significantly high number of criteria.The presented paper proposes two design tools, both developed and programmed in rhino python for the generation of freeform geometries. The tools are generated for specific tasks, but may be interpreted as exemplary for a way of defining and structuring a design program in order to increase its efficiency. Both tools rely on a computational core that is generally defined and may be fed with as many and different constraints and criteria as considered suitable for the defined task.
wos	WOS:000340643600023
keywords	Integrative design; evolutionary algorithm; agent-based system.
series	eCAADe
email
last changed	2022/06/07 08:00

_id	ecaade2017_189
id	ecaade2017_189
authors	Parigi, Dario, Svidt, Kjeld, Molin, Erik and Bard, Delphine
year	2017
title	Parametric Room Acoustic workflows - Review and future perspectives
doi	https://doi.org/10.52842/conf.ecaade.2017.2.603
source	Fioravanti, A, Cursi, S, Elahmar, S, Gargaro, S, Loffreda, G, Novembri, G, Trento, A (eds.), ShoCK! - Sharing Computational Knowledge! - Proceedings of the 35th eCAADe Conference - Volume 2, Sapienza University of Rome, Rome, Italy, 20-22 September 2017, pp. 603-610
summary	The paper investigates and assesses different room acoustics software and the opportunities they offer to engage in parametric acoustics workflow and to influence architectural designs. The first step consists in the testing and benchmarking of different tools on the basis of accuracy, speed and interoperability with Grasshopper 3d. The focus will be placed to the benchmarking of three different acoustic analysis tools based on raytracing. To compare the accuracy and speed of the acoustic evaluation across different tools, a homogeneous set of acoustic parameters is chosen. The room acoustics parameters included in the set are reverberation time (EDT, RT30), clarity (C50), loudness (G), and definition (D50). Scenarios are discussed for determining at different design stages the most suitable acoustic tool. Those scenarios are characterized, by the use of less accurate but fast evaluation tools to be used in early design stages, or by more accurate but slower tools for later-stage design stage detailing and delivery phases.
keywords	Geometrical Acoustics; Parametric design; Real-time acoustic analysis; Virtual reality
series	eCAADe
email
last changed	2022/06/07 08:00

_id	caadria2003_c3-2
id	caadria2003_c3-2
authors	Parisel, C., Revez, J., Tidafi, T. and De Paoli, G.
year	2003
title	Computer Modeling as a Means of Reflexion In Archaeology. A New Epigraphic and Architectural Approach Applied to a Monument Registered on the World Heritage List.
doi	https://doi.org/10.52842/conf.caadria.2003.457
source	CAADRIA 2003 [Proceedings of the 8th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 974-9584-13-9] Bangkok Thailand 18-20 October 2003, pp. 457-474
summary	Purpose of this paper is to present the first promising results of an ongoing research program that is part of a larger multi-year project carried out by the Computer Aided Design Research Group (GRCAO) of the UniversitÈ de MontrÈal, in order to define new methods of archaeological restitution using computer-aided means. This novel approach involves a redefinition of surveying techniques, data processing and knowledge-based thinking in disciplines such as epigraphy and architecture. As its chosen field of investigation, the GRCAO is using the Egyptian temple of Karnak, a monument on the UNESCO World Heritage list that is of considerable historical importance. This impressive archaeological site serves as an excellent case study and testing ground for the project, since it underwent tremendous and complex architectural transformations in the course of its two thousand year-long history.
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	cf2005_2_33_220
id	cf2005_2_33_220
authors	PARK Hyoung-June, ECONOMOU Athanassios and PAPALAMBROS Panos
year	2005
title	Hermes: A Computational Tool for Proportional Studies in Design
source	Learning from the Past a Foundation for the Future [Special publication of papers presented at the CAAD futures 2005 conference held at the Vienna University of Technology / ISBN 3-85437-276-0], Vienna (Austria) 20-22 June 2005, pp. 99-108
summary	A computational tool for proportional analysis and synthesis in architectural composition is presented. The various components of the software are briefly explained and two case studies, one in analysis and one in synthesis of form are presented. Both studies presented here are drawn from Palladio's second book of architecture.
keywords	proportion, genetic algorithms, design optimization, Palladio
series	CAAD Futures
email
last changed	2005/05/05 07:06

_id	caadria2018_097
id	caadria2018_097
authors	Park, Daekwon
year	2018
title	Adaptive THERM-SKIN - Tunable Cellular Materials for Adaptive Thermal Control
doi	https://doi.org/10.52842/conf.caadria.2018.2.309
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 2, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 309-318
summary	This research investigates a tunable cellular material system that can alternate between a thermal insulator and a heat exchanger. The capability to morph between these two distinctive thermal functions provide opportunities to create novel material systems that can dynamically adapt to its environment. The operating principle is to strategically deform the cellular material so that the shape and size of the cavities are optimized for the intended thermal function. In the compressed state, the cavity spaces are narrow enough to suppress convection heat transfer and utilize the low thermal conductivity property of still air. The expanded state has the optimum cavity dimensions for air to move through the system and exchange heat with the material system. The first stage of the research utilizes the existing thermal optimization studies for establishing the analytical model for predicting the performance of each state as a function of the geometric features. The second stage constructs a parametric model using the predictions, and two separate material architectures were designed and fabricated based on it. The calibrated analytical model can be utilized in designing various dynamic thermal interaction systems at a wide range of conditions and parameters (e.g., climate, temperature, scale, and material).
keywords	Dynamic Thermal Insulation; Cellular Materials; Thermal Design and Optimization; Adaptive Materials
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	caadria2015_099
id	caadria2015_099
authors	Park, Daekwon; Juhun Lee and Alejandra Romo
year	2015
title	Poisson's Ratio Material Distributions
doi	https://doi.org/10.52842/conf.caadria.2015.735
source	Emerging Experience in Past, Present and Future of Digital Architecture, Proceedings of the 20th International Conference of the Association for Computer-Aided Architectural Design Research in Asia (CAADRIA 2015) / Daegu 20-22 May 2015, pp. 735-744
summary	The Poisson’s ratio of materials describes the ratio of the transverse to axial strain. While most materials exhibit non-negative Poisson ratio, here we focus on the topological properties of negative ratio materials also known as auxetic constructs. Digital modelling and physical fabrication are employed to generate and test experimental auxetic configurations. The first set of studies employ 2D space-filling tessellations integrating both negative and positive Poisson ratio cells. The tessellations are designed through binary state transitions and gradual morphing transitions. A second set of studies explores the topological optimization of a single negative Poisson cell configuration following the logic that a cell constitutes the building block of auxetic materials. The third set of studies focuses on the translation of heterogeneous Poisson ratio 2D tessellations into 3D constructs. Here, two methods of fabrication are explored: lamination method and cellular grading. The precision of the cellular grading method renders it particularly suitable for multi-material 3D printing fabrication which is theoretically studied and proposed. Space-filling heterogeneous tessellation studies are applied to architectural and product design proposals. These proposals exhibit properties that could serve to design and develop further research on real-world applications.
keywords	Optimization; cellular structure; negative Poisson’s ratio; auxetic material; material distribution.
series	CAADRIA
email
last changed	2022/06/07 08:00

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