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id ijac201715204
authors Mesnil, Romain; Cyril Douthe, Olivier Baverel and Bruno Le?ger
year 2017
title Generalised cyclidic nets for shape modelling in architecture
source International Journal of Architectural Computing vol. 14 - no. 2, 148-168
summary The aim of this article is to introduce a bottom-up methodology for the modelling of free-form shapes in architecture that meet fabrication constraints. To this day, two frameworks are commonly used for surface modelling in architecture: non-uniform rational basis spline modelling and mesh-based approaches. The authors propose an alternative framework called generalised cyclidic nets that automatically yield optimal geometrical properties for the envelope and the structural layout, like the covering with planar quadrilaterals or hexagons. This framework uses a base circular mesh and Dupin cyclides, which are natural objects of the geometry of circles in space, also known as Mo?bius geometry. This article illustrates how complex curved shapes can be generated from generalised cyclidic nets. It addresses the extension of cyclidic nets to arbitrary topologies with the implementation of a ‘hole-filling’ strategy and also demonstrates that this framework gives a simple method to generate corrugated shells.
keywords Free-form, conceptual design, structural morphology, architectural geometry, cyclidic net, fabrication-aware design, PQ mesh, corrugated shell
series journal
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