A Simple Criterion for Nodal 3-connectivity in Planar Graphs
Author(s) -
Colm Ó Dúnlaing
Publication year - 2009
Publication title -
electronic notes in theoretical computer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.242
H-Index - 60
ISSN - 1571-0661
DOI - 10.1016/j.entcs.2008.12.078
Subject(s) - morphing , regular polygon , simple (philosophy) , polyhedron , barycentric coordinate system , texture mapping , planar , planar graph , parametrization (atmospheric modeling) , combinatorics , computer graphics , computer science , mathematics , discrete mathematics , computer graphics (images) , geometry , graph , philosophy , physics , epistemology , quantum mechanics , radiative transfer
This paper gives a simple characterisation of nodally 3-connected planar graphs, which have the property that barycentric mappings, and more generally convex combination mappings, are embeddings. This has applications in numerical analysis (grid generation), and in computer graphics (image morphing, surface triangulations, texture mapping): see [Michael S. Floater (2002). Convex combination maps. In Algorithms for Approximation IV, 18–23, J. Levesley, I.J. Anderson, and J.C. Mason (eds), University of Huddersfield; Geoffrey White (2004). Mesh parametrization for texture mapping. Undergraduate computer science project, Oxford University]
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