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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2022 Volume 62, Number 8, Pages 1269–1287 (Mi zvmmf11434)

10th International Conference "Numerical Geometry, Meshing and High Performance Computing (NUMGRID 2020/Delaunay 130)"
General numerical methods

Transfinite barycentric interpolation via Dirichlet energy minimization for conical surfaces

A. G. Belyaeva, P.-A. Fayolleb

a School of Engineering and Physical Sciences, Heriot-Watt University
b Computer Graphics Laboratory, Aizu University

Abstract: In this theoretical work, we analyze general constructions for transfinite (also known as continuous and integral-based) barycentric coordinates and consider a simple variational principle to arrive at a transfinite version of the Laplace barycentric coordinates. We demonstrate how our approach leads to a general description of the transfinite barycentric coordinates and establish links with Dirichlet energy minimization problems for conical surfaces. Both the 2D and 3D cases are studied. Links with the Minkowski and Christoffel inverse problem in differential geometry are discussed.

Key words: transfinite (integral-based, continuous) barycentric coordinates, generalized barycentric coordinates, transfinite Laplace coordinates, Dirichlet energy minimization.

UDC: 519.63

Received: 15.04.2021
Revised: 15.04.2021
Accepted: 11.04.2022

DOI: 10.31857/S0044466922080038


 English version:
Computational Mathematics and Mathematical Physics, 2022, 62:8, 1234–1251

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© Steklov Math. Inst. of RAS, 2024