Paper by Erik D. Demaine
- Erik D. Demaine, Martin L. Demaine, Jeffrey F. Lindy, and Diane L. Souvaine, “Hinged Dissection of Polypolyhedra”, in Proceedings of the 9th Workshop on Algorithms and Data Structures (WADS 2005), Lecture Notes in Computer Science, volume 3608, Waterloo, Ontario, Canada, August 15–17, 2005, pages 205–217.
This paper presents a general family of 3D hinged dissections
for polypolyhedra, i.e., connected 3D solids formed by
joining several rigid copies of the same polyhedron along identical faces.
(Such joinings are possible only for reflectionally symmetric faces.)
Each hinged dissection consists of a linear number of solid polyhedral pieces
hinged along their edges to form a flexible closed chain (cycle).
For each base polyhedron P and each positive integer n,
a single hinged
dissection has folded configurations corresponding to all possible
polypolyhedra formed by joining n copies of the polyhedron P.
In particular, these results settle the open problem posed
about the special case of polycubes (where P is a cube)
and extend analogous results from
Along the way, we present hinged dissections for polyplatonics
(where P is a platonic solid) that are particularly efficient: among a
type of hinged dissection, they use the fewest possible pieces.
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- Related papers:
- HingedPolyforms3D_CGW2004 (Hinged Dissection of Polypolyhedra)
- HingedPolyforms (Hinged Dissection of Polyominoes and Polyforms)
See also other papers by Erik Demaine.
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