Unfolding Orthogonal Polyhedra with Quadratic Refinement: The Delta-Unfolding Algorithm

We show that every orthogonal polyhedron homeomorphic to a sphere can be unfolded without overlap while using only polynomially many (orthogonal) cuts. By contrast, the best previous such result used exponentially many cuts. More precisely, given an orthogonal polyhedron with n vertices, the algorit...

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Main Authors: Damian, Mirela, Demaine, Erik D., Flatland, Robin
Other Authors: Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
Format: Article
Language:en_US
Published: Springer-Verlag 2014
Online Access:http://hdl.handle.net/1721.1/86067
https://orcid.org/0000-0003-3803-5703
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author Damian, Mirela
Demaine, Erik D.
Flatland, Robin
author2 Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
author_facet Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
Damian, Mirela
Demaine, Erik D.
Flatland, Robin
author_sort Damian, Mirela
collection MIT
description We show that every orthogonal polyhedron homeomorphic to a sphere can be unfolded without overlap while using only polynomially many (orthogonal) cuts. By contrast, the best previous such result used exponentially many cuts. More precisely, given an orthogonal polyhedron with n vertices, the algorithm cuts the polyhedron only where it is met by the grid of coordinate planes passing through the vertices, together with Θ(n [superscript 2]) additional coordinate planes between every two such grid planes.
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spelling mit-1721.1/860672022-10-01T04:39:08Z Unfolding Orthogonal Polyhedra with Quadratic Refinement: The Delta-Unfolding Algorithm Damian, Mirela Demaine, Erik D. Flatland, Robin Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Demaine, Erik D. We show that every orthogonal polyhedron homeomorphic to a sphere can be unfolded without overlap while using only polynomially many (orthogonal) cuts. By contrast, the best previous such result used exponentially many cuts. More precisely, given an orthogonal polyhedron with n vertices, the algorithm cuts the polyhedron only where it is met by the grid of coordinate planes passing through the vertices, together with Θ(n [superscript 2]) additional coordinate planes between every two such grid planes. National Science Foundation (U.S.) (CAREER Award CCF-0347776) 2014-04-07T17:58:47Z 2014-04-07T17:58:47Z 2012-11 2012-10 Article http://purl.org/eprint/type/JournalArticle 0911-0119 1435-5914 http://hdl.handle.net/1721.1/86067 Damian, Mirela, Erik D. Demaine, and Robin Flatland. “Unfolding Orthogonal Polyhedra with Quadratic Refinement: The Delta-Unfolding Algorithm.” Graphs and Combinatorics 30, no. 1 (January 2014): 125–140. https://orcid.org/0000-0003-3803-5703 en_US http://dx.doi.org/10.1007/s00373-012-1257-9 Graphs and Combinatorics Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Springer-Verlag MIT web domain
spellingShingle Damian, Mirela
Demaine, Erik D.
Flatland, Robin
Unfolding Orthogonal Polyhedra with Quadratic Refinement: The Delta-Unfolding Algorithm
title Unfolding Orthogonal Polyhedra with Quadratic Refinement: The Delta-Unfolding Algorithm
title_full Unfolding Orthogonal Polyhedra with Quadratic Refinement: The Delta-Unfolding Algorithm
title_fullStr Unfolding Orthogonal Polyhedra with Quadratic Refinement: The Delta-Unfolding Algorithm
title_full_unstemmed Unfolding Orthogonal Polyhedra with Quadratic Refinement: The Delta-Unfolding Algorithm
title_short Unfolding Orthogonal Polyhedra with Quadratic Refinement: The Delta-Unfolding Algorithm
title_sort unfolding orthogonal polyhedra with quadratic refinement the delta unfolding algorithm
url http://hdl.handle.net/1721.1/86067
https://orcid.org/0000-0003-3803-5703
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