“Weaving geodesic foliations” by Vekhter, Zhuo, Fandino, Huang and Vouga
Conference:
Type(s):
Title:
- Weaving geodesic foliations
Session/Category Title: Shape Science
Presenter(s)/Author(s):
Abstract:
We study discrete geodesic foliations of surfaces—foliations whose leaves are all approximately geodesic curves—and develop several new variational algorithms for computing such foliations. Our key insight is a relaxation of vector field integrability in the discrete setting, which allows us to optimize for curl-free unit vector fields that remain well-defined near singularities and robustly recover a scalar function whose gradient is well aligned to these fields. We then connect the physics governing surfaces woven out of thin ribbons to the geometry of geodesic foliations, and present a design and fabrication pipeline for approximating surfaces of arbitrary geometry and topology by triaxially-woven structures, where the ribbon layout is determined by a geodesic foliation on a sixfold branched cover of the input surface. We validate the effectiveness of our pipeline on a variety of simulated and fabricated woven designs, including an example for readers to try at home.
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