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Computational Subdivided Platonic Solids / Michael Hansmeyer

The Platonic Solids project by computational architect Michael Hansmeyer explores how a purely operations-based geometric process can generate complex form. Rather than studying the possibilities in combining numerous primitives, this project examines the potential inherent in a single primitive given an appropriate process. It takes the most primitive forms, the platonic solids, and repeatedly employs one single operation – the division of a form’s faces into smaller faces – until a new form is produced.

All of the forms shown are generated using the same single process, only the variables that control the process’ division operation are allowed to change. This single process affects both the form’s topography and topology. It influences attributes such as the degree of branching, porosity, and fractalization – just to name a few. The process also works at multiple scales: it affects not only the overall shape, but it determines the surface development as well as the generation of miniscule textures. The resulting forms display a novel aesthetic and an astounding complexity that largely defies attempts at reductionism.

This project by computational architect Michael Hansmeyer involves the conception and design of a new column order based on subdivision processes. It explores how subdivision can define and embellish this column order with an elaborate system of ornament. An abstracted doric column is used as an input form to the subdivision processes. Unlike the minimal input of the Platonic Solids project, the abstracted column conveys a significant topographical and topological information about the form to be generated. The input form contains data about the proportions of the the column’s shaft, capital, and supplemental base. It also contains information about its fluting and entasis.

The input form is tagged to allow the subdivision process to distinguish between individual components. This allows a heterogeneous application of the process, with distinct local parameters settings. In addition to distinguishing among tagged components, the process parameters can be set to vary according to the input form’s topography as well as its topology. Finally, an environmental specification of parameters is possible to allow regional phenomena to occur.

The result is a series of columns that exhibit both highly specific local conditions as well as an overall coherency and continuity. The ornament is in a continuous flow, yet it consists of very distinct local formations. The complexity of column contrasts with the simplicity of its generative process.

A full-scale, 2.7-meter high variant of the columns is fabricated as a layered model using 1mm sheet. Each sheet is individually cut using a mill or laser. Sheets are stacked and held together by poles that run through a common core. The calculation of the cutting path for each sheet takes place in several steps. First, the six million faces of the 3D model are intersected with a plane representing the sheet. This step generates a series of individual line segments that are tested for self-intersection and subsequently combined to form polygons. Next, a polygon-in-polygon test deletes interior polygons. A series of filters then ensures that convex polygons with peninsulas maintain a mininimum isthmus width. In a final step, an interior offset is calculated with the aim of hollowing out the slice to reduce weight. While the mean diameter of the column is 50cm, the circumference as measured by the cutting path can reach up to 8 meters due to jaggedness and frequent reversals of curvature. The initial prototype uses 1mm grey board. Tests using ABS, wood, as well as metal are under way.




Источник: http://www.evolo.us/architecture/algorithmic-column-with-six-million-faces-michael-hansmeyer/
Категория: Дизайн | Добавил: ArtDubina (11.03.2012)
Просмотров: 1190 | Теги: архитектура будущего | Рейтинг: 0.0/0










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