domingo, 21 de junho de 2009

Spaces Symmetry Structure

TT's Origami Page

Rigid Origami from Daniel Piker on Vimeo.

Deployable/transformable Structures

Deployable/Transformable Structures from Daniel Piker on Vimeo.

1st Parametric Design Workshop - HTWK Leipzig

June 26, 2009 to June 29, 2009HTWK Leipzig - Geutebrück Bau (Ateliers Top Level) During an intense 3 day workshop students will investigate into parametrically developed light & shadow structures.
Organized by a-ngine

quarta-feira, 17 de junho de 2009

George Stiny Workshop and Lecture

How to use shapes and rules to design
18 de Junho, 9h30-13h e 14h30-18h
Sala 9 do Edifício 5, FA-UTL.
George Stiny irá dar uma workshop sobre como usar formas e regras em projecto
O foco da workshop está, assim, no uso de gramáticas de forma em projecto, abordando:

(1) Formas e regras
(2) Formas e esquemas (descrições e transformações)
(3) Que regras e esquemas devo usar (um grelha de tipos de regras)
(4) Rótulos, pesos e descrições
(5) Questões abertas.

What calculating would be like if Turing had been an artist and not a logician, and why this is important in design
19 de Junho, 11h, FA-UTL.
“O Cubo” da FA.Palestra por George Stiny, Professor, Massachusetts Institute of Technology, EUA.

terça-feira, 16 de junho de 2009

segunda-feira, 15 de junho de 2009

The Breathing Earth simulation

This real-time simulation displays the CO2 emissions of every country in the world, as well as their birth and death rates.

domingo, 14 de junho de 2009

Urban RE:Vision

Something incredible is about to happen in downtown Dallas.Soon, a single block will be transformed into a place that creates economies,supports community, facilitates relationships and generates resources.
The winners of Re:Vision Dallas have created plans thatchallenged us, engaged us, and inspired us.

sexta-feira, 12 de junho de 2009

Algorithmic for visual design: using the processing language

How has design changed through the use of computers? Is it still valid to assume that a designer is in control of a design concept?Is computer programming necessary in design today?

terça-feira, 9 de junho de 2009

Kim Williams (2009)

Drawing, Form and Architecture: Two Projects for First-Year Students
Abstract. Two recent projects for a first-year course in drawing for architecture students have been organized by Sylvie Duvernoy, Michela Rossi and Kay Bea Jones. The first, a four-phase program centering around a tour of the architecture of the Midwest in the United States, was implemented in Spring 2008. The second, a day-long seminar on designs for temporary architecture, took place in December 2008. In both, the use of mathematical concepts to provide an underlying organization for the generation of architectural form was fundamental.

Algorithmic Aesthetics: Computer Models for Criticism and Design in the Arts

Can a computer appreciate a work of art? Can a computer create a new work of art? What does it mean for an object to be a work of art? How are objects understood as works of art? Dozens of ways of understanding art have been proposed. Is there one true way to understand works of art? If not, what do the different ways of understanding art have in common? How might they be implemented in a computer? Does this “computer” or “algorithmic” approach have any contributions to make to the field of art and aesthetics?

segunda-feira, 8 de junho de 2009

Dounas Theodore (2008), Architect Engineer

Dynamic (Shape) Grammars

The research presented in the paper explores the creation of custom shape grammars with animation tools, either as a learning or educational tool or for the purposes of architectural design.
Standard shape grammars contain an initial shape or design and one or more transformation rules. In a simple scenario the designer just applies the rules in the initial design or in a complicated scenario has to chose which rule to apply. Dynamic shape grammars on the other hand use animation tools to produce dynamic rules of transformation, or even dynamic – parametric initial shapes on which to apply the rules on. The dynamic state of the rules in our system allow the designer to change the rules during designing without having to abandon a core structural idea or concept. Furthermore the implementation with an animation tool allows the design system to be form-independent and express the underlying structure of an architectural idea with non-graphical connections like parent and child relationships, or other deformation rules.
It can be shown that in a computation context dynamic shape grammars are actually groups of standard shape grammars where the grammars in the group share the classification of the transformation rules they contain. The system that we present allows the designer to change between the grammars in one group in a transparent way without expressing the grammar formally but by only manipulating simple objects inside the animation software package. This transparency focuses the effort of the user in simply design and keeping track of the formal declarations of shape grammars while the multiple dynamic grammars remove the obstacle of conforming to a single set of rules. The benefits of this effort can be especially seen in actual architectural design where the focus is in developing a concept idea and not strictly adhering to the rules.

Algorithmic Botany: website of the Biological Modeling and Visualization research group

Visualization of developmental processes by extrusion in space-timeMark Hammel and Przemyslaw Prusinkiewicz Department of Computer Science University of Calgary Calgary, Alberta, Canada T2N 1N4 e-mail:

Developmental processes in nature may involve complex changes in the topology, shape, and patterns of growing structures. Processes taking place in one or two dimensions can be visualized as objects in three-dimensional space, obtained by extruding the growing structures along a line or curve representing the progress of time. In this paper, we extend the notion of L-systems with turtle interpretation to facilitate the construction of such objects. This extension is based on the interpretation of the entire derivation graph generated by an L-system, as opposed to the interpretation of individual words. We illustrate the proposed method by applying it to visualize the development of compound leaves, a sea shell with a pigmentation pattern, and a filamentous bacteria. In addition to serving as visualization examples, these models are of interest on their own. The sea shell model uses an L-system to express a reaction-diffusion process, thus relating these two models of morphogenesis. The model of bacteria, which is also of the reaction-diffusion type, sheds new light on one of the basic problems of morphogenesis, the formation of equally spaced organs in a developing medium. Keywords: L-system, fractal, plant, sea shell, generative modeling, reaction-diffusion, simulation, visualization.


quarta-feira, 3 de junho de 2009

Warren Sack, Conversation Map v.2.0 (2000)

Using techniques from computational linguistics, social network analysis, and information visualization, the Conversation Map automatically summarizes and produces an interactive diagram of hundreds or thousands of email messages sent to online public discussions. The diagram includes three parts: a social network visualizing who is exchanging messages with whom; a list of discussion themes, a menu of topics being discussed; and, a semantic network that shows which topics are discussed in similar terms; or, in other words, the synonyms or metaphors that are emerging from the discussion.

Bischof Horst, RiemenschneiderHayko (2008)

CityFit: High-Quality Urban Reconstructions by Fitting Shape Grammars to Images and derived Textured Point Clouds
The generation of realistic 3D models of whole cities has become a vibrant and highly competitive market through the recent activities of, most notably, Goggle Earth and Microsoft Virtual Earth. While the first generation of these systems only delivered high-quality zoomable images of the ground, the current trend is heavily geared towards 3D – that is, users can access three-dimensional height- fields of the terrain, and even 3D models of individual buildings. Simple building models, basically extruded polygons with different types of roofs, can be generated today from aerial images completely automatically. This is a solved problem. Far from solved, however, is the problem of generating automatically detailed buildings with façades. Input data for this problem are registered range maps obtained by stereo matching and sequences of highly overlapping thus redundant images (taken from a car driving in the road) where each pixel has not only a color but also a depth, a z-value. Although range maps can be directly rendered in principle, the data size is huge and, more importantly, the pixels have no semantics: A priori there is no difference between a pixel on the floor, on the wall, or on a door. But these shape semantics are required by all downstream applications using the city model. Shape grammars, on the other hand, have recently become (again) a popular method in research for representing 3D buildings. Their great advantage is that they allow to parameterize buildings, which can be used for populating virtual cities with believable architectural buildings, e.g., for 3D games. The goal of the CITYFIT project is, given highly redundant input imagery and range maps from an arbitrary building in Graz, to synthesize a shape grammar that, when evaluated, creates a clean, CAD- quality reconstruction of that building that fits the original data very closely and makes the semantics of all major architectural features explicit. These shape semantics can even be transferred back to inform the original data, so each of these “semantically enriched” data points can tell whether it belongs to ground, wall, or door.

terça-feira, 2 de junho de 2009

The shape synthesis system

Rosirene Mayer (2003) A linguagem de Oscar Niemeyer,

Orientador: Benamy Turkienicz This work aims at describing the elements that characterize Oscar Niemeyer’s singular architectural language. It argues that the identification of these elements passes for the scrutiny of non-visible aspects of his work. The identification was possible taking into consideration from the analysis of buildings characterized for curved profile and the construction of a model that associates the compositional elements utilized by Niemeyer to a Shape Grammar. The utilization of the model made it possible to reveal the generative principles - set of rules, vocabulary and geometric relations - that characterize Niemeyer’s style and architectural language. It also helped showing how Niemeyer’s language associates, in an original way, operations of transformation such as rotation, reflection, and translation to a vocabulary of curves. The association has its parameters on a drawn line which acts as a regulator based on the golden section. As its conclusion, the work suggests possibilities of development of this grammar for all the forms utilized by Niemeyer and the aplication of generative principles in the teaching of architecture.

1) How do designers, across a range of disciplines, generate shapes?

2) What similarities and differences in approach can be observed? The generation of shapes that conform to particular styles, using shape computation tools based on the mathematics of shape grammars [Stiny 1980], has been demonstrated in a number of domains [Prats et al 2006]. Researchers at the University of Leeds have built the world’s first and only 3D shape grammar implementation for curvilinear shapes [Chau 2004]. The basic elements of a shape grammar are shown in Figure 1. The box at the top of the figure shows an initial shape (that seeds the computation) and the two shape rules that are applied during the computation. The shapes at the bottom of the figure show a fragment of the network of shapes that can be computed from the initial shape through the application of the shape rules. The application of a shape rule involves two key steps. Firstly, the shape on the left-hand side of a rule must be identified in the shape from which a new shape is to be computed; this is referred to as “sub-shape detection”. Secondly, the rule is applied by replacing the sub-shape from the left-hand side of the rule with the shape on the right-hand side of the rule. Once a sub-shape has been detected, the Leeds system can automatically apply a rule. However, the sub-shapes have to be identified manually because the automatic detection of sub-shapes is an open research question within the shape grammar community.

Des.Comp.08 Exhibition, September 4 - 9, Wolk Gallery

"DNA Nanodevices", by F. C. Simmel, W. U. Dittmer, Small, 2005, 1, 3, 284 - 299