Affiliation:
1. University of California
2. University of Massachusetts
3. Singapore University of Technology and Design
Abstract
A geometric dissection is a set of pieces which can be assembled in different ways to form distinct shapes. Dissections are used as recreational puzzles because it is striking when a single set of pieces can construct highly different forms. Existing techniques for creating dissections find pieces that reconstruct two input shapes exactly. Unfortunately, these methods only support simple, abstract shapes because an excessive number of pieces may be needed to reconstruct more complex, naturalistic shapes. We introduce a dissection design technique that supports such shapes by requiring that the pieces reconstruct the shapes only
approximately.
We find that, in most cases, a small number of pieces suffices to tightly approximate the input shapes. We frame the search for a viable dissection as a combinatorial optimization problem, where the goal is to search for the best approximation to the input shapes using a given number of pieces. We find a lower bound on the tightness of the approximation for a partial dissection solution, which allows us to prune the search space and makes the problem tractable. We demonstrate our approach on several challenging examples, showing that it can create dissections between shapes of significantly greater complexity than those supported by previous techniques.
Funder
Ministry of Education - Singapore
National Research Foundation Singapore
National Research Foundation. Prime Minister's Office, Singapore
National Science Foundation
Publisher
Association for Computing Machinery (ACM)
Subject
Computer Graphics and Computer-Aided Design
Reference19 articles.
1. J. Bosboom E.D. Demaine M.L. Demaine J. Lynch P. Manurangsi M. Rudoy and A. Yodpinyanee. 2015. k-Piece dissection is NP-hard. In Abstracts from the 18th Japan Conf. on Discrete and Computational Geometry and Graphs. 2. J. Bosboom E.D. Demaine M.L. Demaine J. Lynch P. Manurangsi M. Rudoy and A. Yodpinyanee. 2015. k-Piece dissection is NP-hard. In Abstracts from the 18th Japan Conf. on Discrete and Computational Geometry and Graphs. 2.
2. Economical triangle-square dissection
3. G.N. Frederickson. 2003. Dissections: Plane and Fancy. Cambridge University Press. G.N. Frederickson. 2003. Dissections: Plane and Fancy. Cambridge University Press.
4. A problem of Sallee on equidecomposable convex bodies
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