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Delaunay Triangulation of Manifolds

Abstract : We present an algorithm for producing Delaunay triangulations of manifolds. The algorithm can accommodate abstract manifolds that are not presented as submanifolds of Euclidean space. Given a set of sample points and an atlas on a compact manifold, a manifold Delaunay complex is produced for a perturbed point set provided the transition functions are bi-Lipschitz with a constant close to 1, and the original sample points meet a local density requirement; no smoothness assumptions are required. If the transition functions are smooth, the output is a triangulation of the manifold. The output complex is naturally endowed with a piecewise flat metric which, when the original manifold is Riemannian, is a close approximation of the original Riemannian metric. In this case the output complex is also a Delaunay triangulation of its vertices with respect to this piecewise flat metric.
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Submitted on : Tuesday, April 18, 2017 - 4:31:15 PM
Last modification on : Wednesday, October 10, 2018 - 10:10:13 AM
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Jean-Daniel Boissonnat, Ramsay Dyer, Arijit Ghosh. Delaunay Triangulation of Manifolds. Foundations of Computational Mathematics, Springer Verlag, 2017, 45, pp.38. ⟨10.1007/s10208-017-9344-1⟩. ⟨hal-01509888⟩

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