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	620a
authors	Galle, Per
year	1983
title	A Theorem Relating to Exhaustive Generation of Floor Plans
source	Bulletin of Computer Aided Architectural Design. May, 1983. pp. 30-33 : ill
summary	Many problems arise in connection with automated design of architectural floor plans. If modular grids are used, one problem is to avoid repeated generation of the same plan on different modular grids. Using the concept of 'modular complexity,' the paper presents and proves a theorem which offers a solution to this problem
keywords	automation, design, planning, architecture, floor plans, grids, search, synthesis
series	CADline
last changed	1999/02/12 15:08

_id	a666
authors	Galle, Per
year	1986
title	Abstraction as a Tool of Automated Floor-Plan Design
source	Environment and Planning B: Planning and Design. 1986. vol. 13: pp. 21-46 : ill. includes bibliography
summary	The automated design of architectural floor plans satisfying given topological and dimensional constraints is a challenging field of research. In this paper ABSTRACTION is pointed out as an important conceptual tool of this field. A critical discussion of existing plan-design methods leads to the conclusion that the potentials of abstraction as a tool have not yet been fully recognized. The rest of the paper is an attempt to improve this situation by suggesting a new approach to automated floor-plan design. Theoretically, design is viewed as a one-to-many relation; a tree whose lines are directed from the root (the problem) towards the leaves (the solutions). Abstraction is viewed as the inverse many-to-one relation. A particular relation of abstraction is defined, such that the intermediate nodes of the tree (between root and leaves) are themselves floor plans, but are less detailed than the solutions. From the study of this concept of abstraction, it is concluded that the design algorithm based on it is likely to have certain useful properties
keywords	layout, automation, design, architecture, floor plans, abstraction
series	CADline
last changed	1999/02/12 15:08

_id	2ac0
authors	Galle, Per
year	1987
title	A Formalized Concept of Sketching in Automated Floor Plan Design
source	177 p. 1987. DIKO Research Report No.87/3
summary	CADLINE has abstract only. Automated floor plan design, though originally motivated by the difficulties encountered by architects manually designing building layouts, raise several questions that may be of relevance to related application areas as well. e.g. design of electronic circuitry. One such question is, 'how do we come from a given set of constraints on size and placement of rooms (components) to a set of floor plans (circuit layouts) that satisfy these constraints?' In manual architectural design, sketches are used as an intermediate step. The present work is a study of a number of formalizations of the sketch concept which have been or could be used in computer- generation of architectural floor plans. A particular type of sketch, called the 'delta-derivative', is suggested and developed. The delta-derivative of a desired solution plan is an approximation of that solution plan and usually several other similar or 'equivalent' solutions. The idea is to generate sketches ('abstract' plans) before solutions ('concrete' plans), because they are simpler to compute, weeding out sketches that are not 'promising', and trying to refine the remaining sketches into solutions proper, thus limiting the amount of combinatorial search. Several abstraction levels of sketches may be used in this process. However, constraints as specified by the user of an automated design system are assumed to apply to the solutions; therefore a major theoretical problem which is addressed in the report is the derivation of sketch-level constraints that define which sketches to be generated. A comprehensive floor plan design system based on these ideas has been implemented, and empirical results are reported which confirms certain predicted advantages of delta-derivatives but also shows that the sketch-level constraints based on the developed theory are too weak if used alone; they allow generation of too many sketches which cannot possibly be refined into solutions. The report finally conjectures a solution to this problem
keywords	CAD, planning, architecture, floor plans, design, combinatorics, programming, abstraction
series	CADline
last changed	1999/02/12 15:08

_id	801f
authors	Galle, Per
year	1987
title	Branch & Sample : Systematic Combinatorial Search without Optimization
source	73 p. 1987. DIKU Research Report No. 87/5. CADLINE has abstract only
summary	Many constraint satisfaction problems are combinatorically explosive, i.e. have far too many solutions. Optimization techniques may help in selecting solutions for consideration, but a reasonable measure of optimality is not always at hand. The branch & sample algorithm is presented as an alternative to optimization. If the constraints themselves limit the solution set sufficiently, the algorithm finds all solutions, but otherwise a suitable number of solutions (determined by the user) is generated, such that each new solution has a maximal distance to those already generated. The distance measure used is a so called ultrametric distance expressible in terms of the search tree: solutions are viewed as m-tuples of fixed length, each of whose m decision variables corresponds to a level in the search tree. The distance between two solutions is the number of edges from their leaf nodes to the closest common predecessor node in the tree. For problems whose decision variables depend on each other (as is often the case) the set of solutions generated in this way corresponds well to the intuitive notion of a 'representative sample.' The principles of Branch & Sample are first introduced informally, then the algorithm is developed by stepwise refinement, and two examples of its use are given. A fully tested application-independent implementation of the algorithm in C is given as an appendix
keywords	algorithms, combinatorics, search, constraints, floor plans, layout, synthesis, architecture
series	CADline
last changed	1999/02/12 15:08

_id	a7c1
authors	Galle, Per
year	1987
title	A Basic Problem Definition Language for Automated Floor Plan Design
source	113 p. 1987. DIKU Research Report No. 87/4
summary	CADLINE has abstract only. Algorithms for automated floor plan design need a machine- readable description of properties of the desired floor plans. In this report BPDL ('Basic Problem Definition Language'), a rudimentary language for stating such descriptions, is developed. The development is based on a discussion of pragmatic aspects of possible features of the language. The resulting language is described by formal definitions of syntax and semantics, accompanied by informal explanations. Finally, experiments with a floor plan design algorithm that supports BPDL are reported and it is concluded that even a rudimentary language like BPDL can describe relatively non- trivial floor plan layouts, provided a set of geometrical primitives, attributes and relations that make up the language are carefully chosen. Further research along the lines of BPDL is suggested, and the importance of a systematic approach to development of future specification languages for architectural design is stressed
keywords	architecture, floor plans, design, attributes, relations, semantics, algorithms, synthesis, planning, languages
series	CADline
last changed	1999/02/12 15:08

_id	a9b9
authors	Galle, Per
year	1989
title	Computer Methods in Architectural Problem Solving : Critique and Proposals
source	Journal of Architectural and Planning Research. Spring, 1989. vol. 6: pp. 34-54 : ill. includes bibliography
summary	While the development of modelling and drafting tools for computer-aided design has reached a state of considerable maturity, computerized decision support in architectural sketch design is still in its infancy after more than 20 years. The paper analyzes the difficulties of developing computer tools for architectural problem solving in the early stages of design where decisions of majors importance are made. The potentials of computer methods are discussed in relation to design as a static system of information, and to design as a creative process. Two key problems are identified, and on this background current computer methods intended for use in architectural sketch design are critically reviewed. As a result some guidelines are suggested for future research into computer-aided architectural problem solving. The purpose of the paper is twofold: (1) to encourage research that will take this field into a state of maturity and acceptance by practitioners, and (2) to provoke further debate on the question of how to do it
keywords	architecture, CAD, design process, information, problem solving
series	CADline
last changed	1999/02/12 15:08

_id	e832
authors	Galle, Per
year	1989
title	Branch & Sample : A Simple Strategy for Constraints Satisfaction
source	March, 1989. 29: pp. 395-408 : ill. includes bibliography
summary	Many constraint satisfaction problems have too many solutions for exhaustive generation. Optimization techniques may help in selecting a small number of solutions for consideration, but a reasonable measure of optimality is not always at hand. A simple algorithm called Branch & Sample is suggested as an alternative to optimization. Combining breath-first and depth- first search Branch & Sample finds solution distributed over the search tree. The aim is to obtain a limited set of solutions that corresponds well to the intuitive motion of a representative, uniformly scattered sample. A precise definition of this notion is discussed in relation to the algorithm whose effect is illustrated by two geometric design problems. The performance of the algorithm is evaluated and it is concluded that Branch & Sample is applicable to certain types of problems, and refinements can extend the scope of application
keywords	automation, design, constraints, backtracking
series	CADline
last changed	1999/02/12 15:08

_id	e3c7
authors	Galle, Per
year	1989
title	Computer Methods in Architectural Problem Solving: Critique and Proposals
source	CAAD: Education - Research and Practice [eCAADe Conference Proceedings / ISBN 87-982875-2-4] Aarhus (Denmark) 21-23 September 1989, pp. 6.4.1-6.4.21
doi	https://doi.org/10.52842/conf.ecaade.1989.x.t9u
summary	While the development of modeling and drafting tools for computer-aided design has reached a state of considerable maturity, computerized decision support in architectural sketch design is still in its infancy after more than 20 years. The paper analyzes the difficulties of developing computer tools for architectural problem solving in the early stages of design where decisions of major importance are made. The potentials of computer methods are discussed in relation to design as a static system of information and to design as a dynamic creative process. Two key problems are identified, and on this background current computer methods intended for use in architectural sketch design are critically reviewed. As a result some guidelines are suggested for future research into computer- aided architectural problem solving. The purpose of the paper is twofold: (1) to encourage research that will take this field into a state of maturity and acceptance by practitioners, and (2) to provoke further debate on the question of how to do it.
series	eCAADe
last changed	2022/06/07 07:50

_id	439f
authors	Galle, Per
year	1990
title	A language of Abstract Floor Plans
source	Environment and Planning B: Planning and Design. 1990. vol. 17: pp. 173-204 : ill. includes bibliography
summary	Theoretical and experimental results from the implementation of a system for computer-aided floor-plan design are reported. The system is based on a potentially exhaustive search for solutions that satisfy user-specified constraints, but the paper concentrates on techniques for limiting and guiding the search. The emphasis is on two aspects of floor-plan design: the use of a formalized concept of sketching, and the language in which design constraints are specified by the user. A well-defined concept of abstract draft plans is achieved by limiting corner coordinates to intervals, rather than single numbers. Mathematical properties of draft and their defining constraints as derived from the user's constraints are outlined, and the role of drafts in computer- aided floor plan design is investigated and illustrated by examples. The specification language is based on a small set of primitives whose combined power of expression is also illustrated. The syntax and semantics of the language are formally defined (in two appendices), and the importance of careful development of languages for future design automation is pointed out
keywords	floor plans, design, CAD, architecture, automation, synthesis, combinatorics, layout
series	CADline
last changed	1999/02/12 15:08

_id	1442
authors	Galli, M. and Mühlhoff, C.
year	2000
title	Virtual Terragni: CAAD in Historical and Critical Research
source	Birkhäuser, Basel
summary	Traditionally architectural models were static creations but now through CAAD, models can be created which are dynamic and easily manipulated. This book shows how the electronic medium can be used to critically reconstruct unbuilt projects, looking in particular at projects by the famous Italian rationalist, Giuseppe Terragni. Four villas and several monument buildings are visually represented, their structures and functions examined and assessed using CAAD.
series	other
last changed	2003/04/23 15:14

_id	sigradi2003_113
id	sigradi2003_113
authors	Gallo, Marisa
year	2003
title	Uno
source	SIGraDi 2003 - [Proceedings of the 7th Iberoamerican Congress of Digital Graphics] Rosario Argentina 5-7 november 2003
summary	The technological tools applied to the field of the art allow me to fulfill the projects and searches that were formulated by the historical vanguard: to materialize the simulation of movement, of the virtual, of the simultaneous, of the permanently mutant thing. And also to sustain the values of contemporary art as well as to operate from a notorious devaluation of the referent and, at the same time, with a limitless mimetic freedom to accentuate the crossing of opposite disciplines, which was previously defined by collages, assemblages, photomontages. In this way, I redefine these crossings from images where the certainties on the real thing/that represented/that done/that simulated disappear.
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	c1a4
authors	Galofaro, L.
year	1999
title	Digital Eisenman, an office of the electronic era
source	Birkhäuser Verlag, Basel
summary	How should an innovative architect react today to the electronic revolution which is taking place? This work explores the answer by looking at the work of New York architect, Peter Eisenman. It includes a selection of excepts from Eisenman's writings and an analysis of some of his projects.
series	other
last changed	2003/04/23 15:14

_id	sigradi2014_043
id	sigradi2014_043
authors	Galvez Nieto, Alexander Junior´s
year	2014
title	El método de proyecto análogo-digital para el mejoramiento del aprendizaje de la representación arquitectónica dimensional [The method of analog-digital project to improve learning of three-dimensional architectural rendering]
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. 191-194
summary	The ideation process is to move an idea, a mental dimension to the actual physical dimension; that captures the initial intentions and allows their development. Awareness of this stage suggests and use techniques and strategies that favor the process. With the development of technology in the means of architectural expression, has moved any analog or traditional activity, as in the case of the model where its inclusion and experimentation, helps create a hybrid architecture. The confrontation to new methodologies, as part of a creative education, helps significantly to brain plasticity.
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	b9d3
authors	Galán, B., Argumedo, C. and Paganini, A.
year	1999
title	Possibilities of the Computer for the Simulation of the Designer's Constructive Strategies
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 74-78
summary	The dynamic analysis (prospective), of products and systems, it is a methodological resource of the design that allows synthetically, and with great economy of investigation resources and time, to put in evidence the tendencies in the evolution of the object. Finally, the design strategies are defined as postures in front of these tendencies of evolution of the significant variables in the cycle of the product. Having as theoretical context the theory of systems,we explored the dynamic analysis of products and systems, taking their evolution along a temporary series that embraces a complete cycle, from the birth of the object until their maturation in the period of saturation of the market. Starting from the analysis of the evolution of the diverse subsystems, and the conflicts among the world of the necessities, (as pressure exercised from the context), and the technical agreement, it shows the evolutionary dynamics,the underlying conflicts to the logic of the system for each product. They are revealed to the design like a cultural operation that should keep in mind the processes of transformation of the mental representations of the object whose evolution should respect certain rules for its as, clearly such as the well-known maya threshold, (most advanced, yet accepted).
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	ascaad2023_127
id	ascaad2023_127
authors	Gamal, Heba; Elmahdy, Deena
year	2023
title	Assessment of User Interaction Using Photogrammetry as a Tool for Preserving Rosetta Stone
source	C+++: Computation, Culture, and Context – Proceedings of the 11th International Conference of the Arab Society for Computation in Architecture, Art and Design (ASCAAD), University of Petra, Amman, Jordan [Hybrid Conference] 7-9 November 2023, pp. 74-89.
summary	Many Egyptian artifacts, statues, and monuments are displayed in museums around the world, where most of them are illegally transferred. One of these monuments is the Rosetta stone, which is located at the British Museum in London, where Egypt has been demanding its return for years. Many applications such as Photogrammetry can be used to temporarily document, restore, and preserve any missing or damaged monuments that no longer exist. The paper aims to assess the user interaction with the absence of unattainable/looted artifacts focusing on the Rosetta stone using photogrammetry as a tool. This would increase users ‘awareness and interaction with their heritage through the integration of virtual and augmented techniques. The method used Recap Autodesk software as a guideline to generate an accurate 3D model of the stone to simulate a real environment. 3D Vista software and Vuforia Unity plugin were used for virtual and augmented user interaction. A survey has been done on 36 participants to test the model for assessing their interaction. The results recorded high interaction and satisfaction from the participants through experiencing the virtual tours of the Rosetta stone in its actual environments via augmented reality. Introducing Photogrammetry techniques would not only help to preserve the missing pieces but also reduce the boundaries between various generations and their heritage. Moreover, VR and AR can help museums attract new audiences and encourage repeat visits from existing ones. Additionally, these technologies can help museums reach a wider audience by providing virtual tours and exhibits that can be accessed from anywhere in the world, making it easier for people to engage with art and culture regardless of their location.
series	ASCAAD
email
last changed	2024/02/13 14:41

_id	6f41
authors	Gambao, E., Balaguer, C. and Gebhart, F.
year	2000
title	Robot assembly system for computer-integrated construction
source	Automation in Construction 9 (5-6) (2000) pp. 479-487
summary	The construction industry demands a productivity increase that cannot be attained by means of traditional methods for masonry that have already reached their system limits and cannot contribute to further effectiveness. Further rationalisation can only be achieved by the reduction of labour and construction times. Therefore, a certain innovative leap is required by a system approach that combines the already existing construction technologies with new information, automation and robot technologies. An integrated automation system has been developed in the European ESPRIT III Robot Assembly System for Computer Integrated Construction (ROCCO) Project. Industrial partners and research centres from Germany, Spain and Belgium that are linked to the construction industry and robotics have formed the consortium. Block assembly tasks are performed by means of two robotics systems. One of the many challenges of these systems is related with the development of the control approach of large-range robots with hydraulic actuators. Conventional control strategies, based on PID or PD controllers and linear models, are unsuitable and prove completely inefficient for these robots. New control methods are necessary in order to achieve high performance with a reasonable time-consuming algorithm, useful in a real time control system. The most significant aspects related to the development of these robotic systems and their control systems are presented in this paper.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	cf2015_328
id	cf2015_328
authors	Gamez, Oscar; Bignon, Jean-Claude and Duchanois, Gilles
year	2015
title	Assisted construction of non-standard wooden walls and envelope structures by parametric modeling
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. 328.
summary	We introduce a parametric modeling method in the field of computer-aided architectural conception, which aims to produce non-standard wooden walls and envelopes with CNC machinery. This method explores the application of polygonal cellular structures (as patterns) on facade and envelope interventions for new and old projects. We innovate by bringing the 3D production environment complexity into the conception model to improve the production of manifold woodworking items by CNC (Computer Numerical Control) 3D fabrication. A recent experimentation, tests the entire workflow from parametric modeling to production of two full-scale prototypes. The results prove the range of inputs offered by the method to be functional, though it needs various improvements in order to optimize parametric modeling and digital fabrication procedures. Future research will focus on treating a wider range of joints via parametric modeling and deal with joint creation regardless wall deformation to expand the morphological approach of non-standard wooden walls design.
keywords	Non-standard walls, Computer-aided architectural design, Wood construction, Parametric modeling, CNC fabrication, Mass customization.
series	CAAD Futures
email
last changed	2015/06/29 07:55

_id	5986
authors	Gamma, E., Helm, R., Johnson, R. and Vlissides, J.
year	1995
title	Design Patterns: Elements of Reusable Object-Oriented Software
source	Reading, MA: Addison-Wesley
summary	The book is an introduction to the idea of design patterns in software engineering, and a catalog of twenty-three common patterns. The nice thing is, most experienced OOP designers will find out they've known about patterns all along. It's just that they've never considered them as such, or tried to centralize the idea behind a given pattern so that it will be easily reusable.
series	other
last changed	2003/04/23 15:14

_id	ecaade2023_444
id	ecaade2023_444
authors	Gan, Amelia Wen Jiun, Dang, Quoc, Western, Blaine and García del Castillo, Jose Luis
year	2023
title	AI-Mediated Group Ideation
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 389–398
doi	https://doi.org/10.52842/conf.ecaade.2023.2.389
summary	Design charrettes and town hall formats are commonly used in the field of architecture to facilitate group ideation at multiple stages across a variety of stakeholders. Group ideation is critical to generate a wide range of solutions while covering all aspects of a defined problem. However, the format of group ideation often poses a multitude of challenges, including a lack of diverse ideation, difficulties in reaching consensus, imbalanced power dynamics, as well as maintaining focus throughout a group session. This paper explores how recent developments in AI frameworks could be utilized and assembled as a creative mediator in an architectural ideation process. The paper describes a framework and digital interface for AI-mediated group ideation where recent advancements in speech recognition, Natural Language Processing and Text-to-Image generation are leveraged to facilitate brainstorming processes. The paper first delves into the design of the framework and digital interface, taking into account in-person, remote and hybrid contexts, followed by the technical workflow and pilot evaluation methods used in this study. The resulting design is informed by AI-Mediated Communication, group dynamics and behavioral theories, along with core User Experience principles. The result takes the form of a visual ideation and transcription tool that allows users to ideate across conversational and visual methods.
keywords	AI-Mediated Communication, Ideation, Design Thinking, Natural Language Processing, Human-Computer Interaction
series	eCAADe
email
last changed	2023/12/10 10:49

_id	ecaade2022_275
id	ecaade2022_275
authors	Gan, Amelia Wen Jiun, Guida, George, Kim, Dongyun, Shah, Devashree, Youn, Hyejun and Seibold, Zach
year	2022
title	Modulo Continuo - 5-axis ceramic additive manufacturing applications for evaporative cooling facades modules
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 1, Ghent, 13-16 September 2022, pp. 47–55
doi	https://doi.org/10.52842/conf.ecaade.2022.1.047
summary	Recent developments in industrial robotics present an increasing degree of control in additive manufacturing, enabling customization of architectural building components at the scale of the individual unit. Combining the affordances of a 6-axis robotic arm, paste- based extrusion, and terracotta clay, Modulo Continuo presents methods for part-customization of evaporative cooling facade modules. The design of the facade modules is developed firstly at the scale of the tectonic unit - as a self-supporting, interlocking modular system of curved modules with an embedded water reservoir for evaporative cooling. Second, this is developed at the scale of the toolpath - in which the density of the infill geometry in the modules is calibrated based on principles of evaporative cooling. This research presents aesthetic and performative opportunities through an exploration of infill patterning and density of modules based on evaporative cooling requirements. To produce each curved module through additive manufacturing, curved CNC milled substrates are used to support the geometry while accommodating clay shrinkage. Furthermore, this paper presents novel digital workflows for the customization of a modular façade system and the generation of variable toolpaths for infill patterns. By developing additive manufacturing methodologies for part- customization, the research presents future opportunities for the digital fabrication of ceramic construction elements.
keywords	Additive Manufacturing, Digital Fabrication, Evaporative Cooling, Ceramics
series	eCAADe
email
last changed	2024/04/22 07:10

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