منابع مشابه
Skeletal representations of orthogonal shapes
Skeletal representations are important shape descriptors which encode topological and geometrical properties of shapes and reduce their dimension. Skeletons are used in several fields of science and attract the attention of many researchers. In the BioCAD field, the analysis of structural properties such as porosity of biomaterials requires the previous computation of a skeleton. As the size of...
متن کاملUniversal Hinge Patterns to Fold Orthogonal Shapes
An early result in computational origami is that every polyhedral surface can be folded from a large enough square of paper [2]. But each such folding uses a different crease pattern. Can one design a hinge pattern that can be folded into various different shapes? Our motivation is developing programmable matter out of a foldable sheet. The idea is to statically manufacture a sheet with specifi...
متن کاملUniversal Hinge Patterns for Folding Orthogonal Shapes
Polycube Ruby Implementation Cutting Plotter (Graphtec/CraftROBO) Folded Model PostScript Figure 8: The process by which paper origami can be constructed using the described algorithms. square was inserted as part of a row or column), and does not take into account any non-orthogonal creases made as a result of later steps. The PostScript file can be sent to a cutting plotter, which can etch th...
متن کاملOrthogonal Testing Using Genetic Algorithms
Orthogonal Array Testing is one of the most important techniques that produce test cases which are much lesser in number than black box testing, but are more relevant. In spite of its importance, the technique has not been explored as much as other techniques. The present work, therefore, explores the literature to find the gaps in the literature and hence propose a new technique based on Genet...
متن کاملA Universal Crease Pattern for Folding Orthogonal Shapes
We present a universal crease pattern—known in geometry as the tetrakis tiling and in origami as box pleating—that can fold into any object made up of unit cubes joined face-to-face (polycubes). More precisely, there is one universal finite crease pattern for each number n of unit cubes that need to be folded. This result contrasts previous universality results for origami, which require a diff...
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ژورنال
عنوان ژورنال: Computational Geometry
سال: 1995
ISSN: 0925-7721
DOI: 10.1016/0925-7721(94)00016-o