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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Hits 1 to 11 of 11

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

_id	ijac202220212
id	ijac202220212
authors	Castriotto, Caio; Felipe Tavares; Gabriela Celani; Olga Popovic Larsen; Xan Browne
year	2022
title	Clamp links: A novel type of reciprocal frame connection
source	International Journal of Architectural Computing 2022, Vol. 20 - no. 2, pp. 378–399
summary	Reciprocal frames (RFs) are complex structural systems based on mutual support between elements. One of the main challenges for these structures is achieving geometrical complexity with ease for assembly. This paper describes the development of a new type of connection for RF that uses a single bolt to fix a whole fan. The method used was the Research Through Design, using algorithmic modelling and virtual and physical prototyping. After the exploration of different alternatives, the connection selected was structurally evaluated with a 3D solid finite element analysis (FEM) software and a 2D bar parametric model. Finally, a fullscale pavilion was built as a proof-of-concept. A total of 47 connections were fabricated using four 3D-printed templates combined with a hand router. The construction allowed us to draw conclusions on the connection design and the assembly method, and the process as a whole can contribute to the development of new structural links and production methods.
keywords	Reciprocal frames, connections, computational design, simulations, digital fabrication
series	journal
last changed	2024/04/17 14:29

_id	ijac202119312
id	ijac202119312
authors	Chen, Chen; Chacón Vega, Ricardo Jose; Kong, Tiong Lee
year	2021
title	Using genetic algorithm to automate the generation of an open-plan office layout
source	International Journal of Architectural Computing 2021, Vol. 19 - no. 3, 449–465
summary	Today, the concept of open plan is more and more widely accepted that many companies have switched to open-plan offices. Their design is an issue in the scope of space layout planning. Although there are many professional architectural layout design software in the market, in the real life, office designers seldom use these tools because their license fees are usually expensive and using them to solve an open-plan office design is like using an overly powerful and expensive tool to fix a minor problem. Therefore, manual drafting through a trial and error process is most often used. This article attempts to propose a lightweight tool to automate open-plan office layout generation using a nested genetic algorithm optimization with two layers, where the inner layer algorithm is embedded in the outer one. The result is enhanced by a local search. The main objective is to maximize space utilization by maximizing the size of the open workspace. This approach is different from its precedents, in that the location search is conducted on a grid map rather than several pre-selected candidate locations. Consequently, the generated layout design presents a less rigid workstation arrangement, inviting a casual and unrestrictive work environment. The real potential of the approach is reflected in the productivity of test fits. Automating and simplifying the generation of layouts for test fits can tremendously decrease the amount of time and resources required to generate them. The experimental case study shows that the developed approach is powerful and effective, making it a totally automated process.
keywords	Automated process, office design, genetic algorithm, open-plan office, space layout planning
series	journal
email
last changed	2024/04/17 14:29

_id	29bb
authors	Fix, George J. and Ernst, Stephan
year	1982
title	Finite Element Methods of the Least Squares Type for Regions with Corners
source	15 p. : ill Pittsburgh: Design Research Center, CMU, April, 1982. includes bibliography.
summary	This paper treats problems with corner singularities. It is shown that if appropriate weights are used in the least squares formulation, then optimal error estimates can be derived in unweighted L2 norms
keywords	computational geometry, finite elements, mathematics
series	CADline
last changed	2003/06/02 13:58

_id	ad2e
authors	Fix, George J. and Gunzburger, Max D.
year	1982
title	On Numerical Methods for Acoustic Problems
source	14 p. : ill. Pittsburgh: Design Research Center, CMU, April, 1982. include bibliography: p. 12
summary	Finite element methods are introduced for the approximate solution of periodic acoustic problems. A least squares technique is used for those problems which are governed by a first order system of partial differential equations while for second order equations, a Galerkin/multigrid technique is employed. In both cases, the solution process for the algebraic system resulting from discretization is iterative in character
keywords	acoustics, finite elements, mathematics
series	CADline
last changed	2003/06/02 10:24

_id	sigradi2011_127
id	sigradi2011_127
authors	Giusso, Cecilia; Schaposnik, Viviana
year	2011
title	Imagen Digital: Su Aplicacion en Investigacion - Fases Analitica, Diagnostica y Proyectual - Caso Intersticios Bajo Autopista [Digital imaging: Research application - Analytical, diagnostic and design stages in Interstitials Situations under Highways]
source	SIGraDi 2011 [Proceedings of the 15th Iberoamerican Congress of Digital Graphics] Argentina - Santa Fe 16-18 November 2011, pp. 69-73
summary	The present article links Urban Territories and Interstitials Situations under Highways, appointing to fix regulations and strategies from a systematically formulation of Patterns, ordering elements of Typological Series, able to support possible futures urban and architectural designs. The evaluation of specific conditions of habitability of the interstitial situations mentioned, must be boarded to be changed, as well as those cases apt to be optimized, producing a reconfiguration of present situation. There is a responsibility about a simultaneous design of the upper and under highways, taking in account interstitially space, is unavoidable information to face actions over urban areas in relation with motility, high-way fluxes and appropriation in the under high-way.
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	4551
authors	Griffiths, J.G.
year	1984
title	A Depth-Coherence Scanline Algorithm for Displaying Curved Surfaces
source	Computer Aided Design. March, 1984. vol. 16: pp. 91-101 : ill. includes bibliography
summary	A scanline algorithm is presented which generates a realistic picture of a solid object bounded by curved surfaces. Externally, a surface is described by parametric equations. The internal representation is comprised of meshes of cubic splines which may be subdivided. Memory is saved by delaying subdivision, and by using a novel garbage collection technique. Time is saved by exploiting depth coherence. A viewpoint and scanline fix a cross-section represented as a set of curves. There are usually only a few of these to compare, and the curve nearest the viewer often remains nearest over much of its length
keywords	algorithms, curves, curved surfaces, splines, computer graphics, hidden surfaces
series	CADline
last changed	2003/06/02 13:58

_id	2206
id	2206
authors	Kvan, Thomas
year	2004
title	REASONS TO STOP TEACHING CAAD
source	Mao-Lin Chiu (ed), Digital design education, Garden City Publishing, Taipei 2003, ISBN 9867705203
summary	Computers are a problem. They are expensive, even if the prices have dropped dramatically and promise to continue dropping. They do not look after themselves but demand considerable attention – we have to hire computer specialists to ensure they talk to each other, staff are required to make sure software is installed and to fix things when it no longer works. Learning to use them is tedious; skills have to be developed to master several idiosyncratic software systems. The hardware and software regularly malfunction. It is faster to draw a line by hand than with software. Students already have enough trouble learning how to stop a window leaking or ensure a fire escape route will protect people in time of trouble, why make them learn all these other things. We should stop teaching CAAD. Although technological and economic issues are very real and not to be dismissed lightly, the real problems of teaching CAAD are not these. The real issues we need to address is how we teach and, behind that, why we teach. This paper explores the what and why.
keywords	pedagogy
series	other
type	normal paper
email
last changed	2004/09/27 07:10

_id	ecaade2017_129
id	ecaade2017_129
authors	Li, Qinying and Teng, Teng
year	2017
title	Integrated Adaptive and Tangible Architecture Design Tool
doi	https://doi.org/10.52842/conf.ecaade.2017.1.619
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 1, Sapienza University of Rome, Rome, Italy, 20-22 September 2017, pp. 619-628
summary	In this paper, we identified two majority issues of current CAAD development situating from the standpoint of CAAD history and the nature of design. On one hand, current CAAD tools are not adaptive enough for early design stage, since most of CAAD tools are designed to be mathematical correct. as we conducted a detailed survey of CAAD development history, we find out that most of the techniques of Computer-Aided Design applied into architecture are always adopted from engineering track. On other hand, the interaction between Architects/Designer and CAAD tools needs to be enhanced. Design objects are operated by 2d based tools such as keyboard, mouse as well as monitors which are less capable of comprehensively representing physical 3D building objects. In addition, we proposed a working in progress potential solution with HCI approaches to fix these issues. We summarize that , the prototype proved that architects and designers could benefit from utilizing adaptive and tangible design tools, especially during massing studies in the early phases of architectural design.
keywords	CAAD development,; Human Computer Interaction; Tangible User Interfaces; Design Tool development; Design Process
series	eCAADe
email
last changed	2022/06/07 07:59

_id	diss_long
id	diss_long
authors	Long, A.
year	2001
title	Quill A Gesture Design Tool for Pen-based User Interfaces
source	U.C. Berkeley
summary	This dissertation describes the motivation, design, and development of a tool for designing gestures for pen-based user interfaces. Pens and other styli have been ubiquitous for recording information for centuries. Recently, pen-based computers have recently become common, especially small devices such as the Palm Pilot. One benefit pens provide in computer interfaces is the ability to draw gestures—marks that invoke commands. Gestures can be intuitive and faster than other methods of invoking commands. However, our research shows that gestures are sometimes misrecognized and hard to remember. We believe these problems are due in part to the difficulty of designing “good” gestures—that is, gestures that are easy to remember and are recognized well—and the lack of tools for helping designers create good gestures. We believe that an improved gesture design tool can help interface designers create good gestures for their applications. Since people confuse similar objects and misremember them, we performed experiments to measure why people perceived gestures as similar. We derived computational metrics for predicting human perception of gesture similarity. Based on the results of our experiments, we developed a gesture design tool, quill. The tool warns designers about gestures that may be hard to remember or recognize, and provides advice about how to improve the gestures. It also provides a convenient way to test recognition of gestures. To evaluate quill, a user study was performed with 10 professional user interface designers and one professional web designer. All designers were able to create gesture sets using quill, but not all designers benefited from quill’s suggestions. More work is needed to make suggestions useful for most designers. The primary contributions of this work are: • Improved understanding of the gesture design process, including the types of problems people encounter when designing gestures. • Computational models for predicting human-perceived gesture similarity. • Confirmation of the importance of good naming for gesture memorability. • An intelligent gesture design tool, quill, which automatically warns designers about potential problems with their gestures and advises them about how to fix these problems. This work also suggests several areas for future work in the areas of gesture design tools and gesture similarity and memorability.
series	thesis:PhD
email
more	http://www-2.cs.cmu.edu/~chrisl/work/pubs/
last changed	2003/09/24 14:54

_id	e0d1
authors	Mollaert Marijke
year	1983
title	Interactivity and Graphics as a Support for the Design of Cable Nets and Trusses
doi	https://doi.org/10.52842/conf.ecaade.1983.x.l4u
source	Proceedings of the International Conference eCAADe [European Computer Aided Architectural Design Education] Brussels (Belgium) 1983, pp. IV.26-IV.41
summary	This paper deals with an important aspect concerning the quality of a computer aided design (CAD) program, namely the human-computer interface. To fix the ideas,the user interface of FORCE, a program for the design and visualisation of cable nets and trusses, is considered The new design of this user interface was necessary to support an easy extension of the dialogue, both alpha-numerical and graphical. The new approach includes a separation of the interaction procedures and the application modules.
keywords	CAD, Human-computer Interface
series	eCAADe
email
more	http://wwwtw.vub.ac.be/ond/arch/pages/marijke
last changed	2022/06/07 07:50

_id	ecaade2022_114
id	ecaade2022_114
authors	Rogers, Scarlett, Rubenach, Tom, Doherty, Ben, Gardner, Nicole, Haeusler, M. Hank and Yu, K. Daniel
year	2022
title	Running, Running, Stop - Applying graph theory to pathfinding analysis to improve circulation efficiency in vertical high schools
doi	https://doi.org/10.52842/conf.ecaade.2022.2.019
source	Pak, B, Wurzer, G and Stouffs, R (eds.), Co-creating the Future: Inclusion in and through Design - Proceedings of the 40th Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2022) - Volume 2, Ghent, 13-16 September 2022, pp. 19–28
summary	Understanding how people circulate in a space is crucial to effective spatial organisation. However, while many studies focus on wayfinding within environments such as train stations, there are few discussing multi storey circulation and pathfinding within educational institutions. Vertical high schools differ from other frequently travelled spaces by their need to prefer multiple stairways over elevators, and to devote the maximum floor area possible to learning spaces. These considerations change and impede a student’s ability to quickly traverse multiple floors. In this research, a computational tool is designed to simulate and assess circulation efficiency within a vertical high school with the goal of lightening stairwell congestion and decreasing classroom transit times. Using action research methodology, the research problem was formulated in cooperation with an industry partner and solved in an iterative manner. As a method to assess spatial circulation performance, principles of graph theory were applied to a simplified navigation mesh derived from the high school’s floor plan and Microsoft Excel timetable using Grasshopper. The ability to understand the influence of a designer’s decisions on circulation efficiency factors such as travel time and congestion is vital to creating practical and enduring designs that avoid expensive, post-construction building alterations to fix emergent problems – a core contribution of this research. While the simulation designed in this research engages with a vertical high school context, it could be appropriated for other building types, such as offices or shopping centres. Thereby, this research makes a further contribution to demonstrating the value of developing computational tools to aid in decision making.
keywords	Graph Theory, Congestion, Internal Circulation, Education, Spatial Organisation
series	eCAADe
email
last changed	2024/04/22 07:10

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