Visual Mathematics
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Catoptric Anamorphosis on Free-Form Reflective Surfaces Francesco Di Paola, Pietro Pedone
7 / 2020 Catoptric Anamorphosis on Free-Form Reflective Surfaces Francesco Di Paola, Pietro Pedone Abstract The study focuses on the definition of a geometric methodology for the use of catoptric anamorphosis in contemporary architecture. The particular projective phenomenon is illustrated, showing typological-geometric properties, responding to mechanisms of light re- flection. It is pointed out that previous experience, over the centuries, employed the technique, relegating its realisation exclusively to reflecting devices realised by simple geometries, on a small scale and almost exclusively for convex mirrors. Wanting to extend the use of the projective phenomenon and experiment with the expressive potential on reflective surfaces of a complex geometric free-form nature, traditional geometric methods limit the design and prior control of the results, thus causing the desired effect to fail. Therefore, a generalisable methodological process of implementation is proposed, defined through the use of algorithmic-parametric procedures, for the determination of deformed images, describing possible subsequent developments. Keywords: anamorphosis, science of representation, generative algorithm, free-form, design. Introduction The study investigates the theme of anamorphosis, a 17th The resulting applications require mastery in the use of the century neologism, from the Greek ἀναμόρϕωσις “rifor- various techniques of the Science of Representation aimed mazione”, “reformation”, derivation of ἀναμορϕόω “to at the formulation of the rule for the “deformation” and form again”. “regeneration” of represented images [Di Paola, Inzerillo, It is an original and curious geometric procedure through Santagati 2016]. which it is possible to represent figures on surfaces, mak- There is a particular form of expression, in art and in eve- ing their projections comprehensible only if observed ryday life, of anamorphic optical illusions usually referred from a particular point of view, chosen in advance by the to as “ catoptric “ or “ specular “. -
A Quasicrystal for Cherry Valley-1
The Visual and Structural Properties of Quasicrystals Key words: Quasicrystal Sculpture, Quasicrystal Architecture, Stability A Quasicrystal for Cherry Valley A visually rich and complex quasicrystal sculpture is quickly assembled with relatively few standard parts of only three types. Quasicrystals fill space with a non-repeating pattern; parts repeat, but not at regular intervals. In two dimensions, the pattern might be a Penrose tessellation, although other similar patterns could also be in this category. In three dimensions, the units are two skewed cubes, and in a lattice structure these can be made with rods and dodecahedral nodes. All the rods are of the same length; all the nodes are the same and in the same orientation; all the faces of the lattice are the same rhomb, and can be filled with identical plates. For the Cherry Valley Sculpture Exhibition of 2012, I made a quasicrystal sphere. It has a triacontahedral hull – a 30 sided figure that derives from the fusion of a regular dodecahedron and a regular icosahedron. Nested inside my hull is a rhombic icosahedron and nested inside that is a rhombic dodecahedron. Even though all the parts are standard, the sculpture has 2-fold symmetry (of squares), 3-fold symmetry (of triangles and hexagons), and 5-fold symmetry (of star pentagons), depending on the location of the viewer. This wonderful complexity of aspect is also apparent in the shadows that the sculpture casts. Structural considerations As an artist, I am primarily concerned with the visual properties of quasicrystals; for a wider application to architecture, however, the structural and rigidity properties of these structures must be understood. -
Fictional Illustration Language with Reference to MC Escher and Istvan
New Trends and Issues Proceedings on Humanities and Social Sciences Volume 4, Issue 11, (2017) 156-163 ISSN : 2547-881 www.prosoc.eu Selected Paper of 6th World Conference on Design and Arts (WCDA 2017), 29 June – 01 July 2017, University of Zagreb, Zagreb – Croatia Fictional Illustration Language with Reference to M. C. Escher and Istvan Orosz Examples Banu Bulduk Turkmen a*, Faculty of Fine Arts, Department of Graphics, Hacettepe University, Ankara 06800, Turkey Suggested Citation: Turkmen, B. B. (2017). Fictional illustration language with reference to M. C. Escher and Istvan Orosz examples. New Trends and Issues Proceedings on Humanities and Social Sciences. [Online]. 4(11), 156-163. Available from: www.prosoc.eu Selection and peer review under responsibility of Prof. Dr. Ayse Cakır Ilhan, Ankara University, Turkey. ©2017 SciencePark Research, Organization & Counseling. All rights reserved. Abstract Alternative approaches in illustration language have constantly been developing in terms of material and technical aspects. Illustration languages also differ in terms of semantics and form. Differences in formal expressions for increasing the effect of the subject on the audience lead to diversity in the illustrations. M. C. Escher’s three-dimensional images to be perceived in a two-dimensional environment, together with mathematical and symmetry-oriented studies and the systematic formed by a numerical structure in its background, are associated with the notion of illustration in terms of fictional meaning. Istvan Orosz used the technique of anamorphosis and made it possible for people to see their perception abilities and visual perception sensitivities in different environments created by him. This study identifies new approaches and illustration languages based on the works of both artists, bringing an alternative proposition to illustration languages in terms of systematic sub-structure and fictional idea sketches. -