Modeling origami for computational construction and beyond

  • Authors:
  • Tetsuo Ida;Hidekazu Takahashi;Mircea Marin;Fadoua Ghourabi

  • Affiliations:
  • Department of Computer Science, University of Tsukuba, Tsukuba, Japan;Department of Computer Science, University of Tsukuba, Tsukuba, Japan;Department of Computer Science, University of Tsukuba, Tsukuba, Japan;Department of Computer Science, University of Tsukuba, Tsukuba, Japan

  • Venue:
  • ICCSA'07 Proceedings of the 2007 international conference on Computational science and Its applications - Volume Part II
  • Year:
  • 2007

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Abstract

Computational origami is the computer assisted study of origami as a branch of science of shapes. The origami construction is a countably finite sequence of fold steps, each consisting in folding along a line. In this paper, we formalize origami construction. We model origami paper by a set of faces over which we specify relations of overlay and adjacency. A fold line is determined by a specific fold method. After folding along the fold line, the structure of origami is transformed; some faces are divided and moved, new faces are created and therefore the relations over the faces change. We give a formal method to construct the model origami. The model furthermore induces a graph of layers of faces. We give two origami examples as the application of our model. They exhibit non-trivial aspects of origami which are revealed only by formal modeling. The model is the abstraction of the implemented core of the system of computational origami called Eos (E-origami system).