3-4-6-12 tiling

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3-4-6-12 tiling
2-uniform n1.svg
Type 2-uniform tiling
Vertex configuration Small rhombitrihexagonal tiling vertfig.png Great rhombitrihexagonal tiling vertfig.png
3.4.6.4 and 4.6.12
Symmetry p6m, [6,3], (*632)
Rotation symmetryp6, [6,3]+, (632)
Properties2-uniform, 4-isohedral, 4-isotoxal

In geometry of the Euclidean plane, the 3-4-6-12 tiling is one of 20 2-uniform tilings of the Euclidean plane by regular polygons, containing regular triangles, squares, hexagons and dodecagons, arranged in two vertex configuration: 3.4.6.4 and 4.6.12. [1] [2] [3] [4]

Contents

It has hexagonal symmetry, p6m, [6,3], (*632). It is also called a demiregular tiling by some authors.

Geometry

Its two vertex configurations are shared with two 1-uniform tilings:

rhombitrihexagonal tiling truncated trihexagonal tiling
1-uniform n6.svg
3.4.6.4
1-uniform n3.svg
4.6.12

It can be seen as a type of diminished rhombitrihexagonal tiling, with dodecagons replacing periodic sets of hexagons and surrounding squares and triangles. This is similar to the Johnson solid, a diminished rhombicosidodecahedron, which is a rhombicosidodecahedron with faces removed, leading to new decagonal faces. The dual of this variant is shown to the right (deltoidal hexagonal insets).

1-uniform 6 with dodecagons.png Dual of Planar Tiling (Uniform Two 5) 4.6.12; 3.4.6.4 Corrected Variant O.png

The hexagons can be dissected into 6 triangles, and the dodecagons can be dissected into triangles, hexagons and squares.

Dissected polygons
Triangular tiling vertfig.png Hexagonal cupola flat.png Dissected dodecagon.png
Hexagon Dodecagon
(each has 2 orientations)
Insetting Polygon for Uniform Tilings 1.png Insetting Polygon for Uniform Tilings 1.png Dissection Polygon 3.png
Dual Processes (Dual 'Insets')
3-uniform tilings
482618 (2-uniform)
3-uniform 48 with hexagons.png
[36; 32.4.3.4; 32.4.12]
3-uniform 26 with dodecagons.png
[3.42.6; (3.4.6.4)2]
2-uniform 18 with hexagons dodecagons.png
[36; 32.4.3.4]
Dual of Planar Tiling (Uniform Two 5) 4.6.12; 3.4.6.4 Corrected Variant I.png
V[36; 32.4.3.4; 32.4.12]
Dual of Planar Tiling (Uniform Two 5) 4.6.12; 3.4.6.4 Corrected Variant II.png
V[3.42.6; (3.4.6.4)2]
Dual of Planar Tiling (Uniform Two 5) 4.6.12; 3.4.6.4 Corrected Variant III.png
V[36; 32.4.3.4]
3-uniform duals

Circle Packing

This 2-uniform tiling can be used as a circle packing. Cyan circles are in contact with 3 other circles (2 cyan, 1 pink), corresponding to the V4.6.12 planigon, and pink circles are in contact with 4 other circles (1 cyan, 2 pink), corresponding to the V3.4.6.4 planigon. It is homeomorphic to the ambo operation on the tiling, with the cyan and pink gap polygons corresponding to the cyan and pink circles (mini-vertex configuration polygons; one dimensional duals to the respective planigons). Both images coincide.

C[3.4.6.12]a[3.4.6.12]
Circle Packing of 2-Uniform 3.4.6.12.png Ambo Operation on 2-Uniform 3.4.6.12.png

Dual tiling

The dual tiling has right triangle and kite faces, defined by face configurations: V3.4.6.4 and V4.6.12, and can be seen combining the deltoidal trihexagonal tiling and kisrhombille tilings.

2-uniform 1 dual.svg
Dual tiling
Tiling face 3-4-6-4.svg
V3.4.6.4
Tiling face 4-6-12.svg
V4.6.12
1-uniform 6 dual.svg
Deltoidal trihexagonal tiling
1-uniform 3 dual.svg
Kisrhombille tiling

Notes

  1. Critchlow, pp. 62–67
  2. Grünbaum and Shephard 1986, pp. 65–67
  3. In Search of Demiregular Tilings #4
  4. Chavey (1989)

Related Research Articles

<span class="mw-page-title-main">Euclidean tilings by convex regular polygons</span> Subdivision of the plane into polygons that are all regular

Euclidean plane tilings by convex regular polygons have been widely used since antiquity. The first systematic mathematical treatment was that of Kepler in his Harmonices Mundi.

<span class="mw-page-title-main">Hexagonal tiling</span> Regular tiling of the plane

In geometry, the hexagonal tiling or hexagonal tessellation is a regular tiling of the Euclidean plane, in which exactly three hexagons meet at each vertex. It has Schläfli symbol of {6,3} or t{3,6} .

<span class="mw-page-title-main">Square tiling</span> Regular tiling of the Euclidean plane

In geometry, the square tiling, square tessellation or square grid is a regular tiling of the Euclidean plane. It has Schläfli symbol of {4,4}, meaning it has 4 squares around every vertex. Conway called it a quadrille.

<span class="mw-page-title-main">Triangular tiling</span> Regular tiling of the plane

In geometry, the triangular tiling or triangular tessellation is one of the three regular tilings of the Euclidean plane, and is the only such tiling where the constituent shapes are not parallelogons. Because the internal angle of the equilateral triangle is 60 degrees, six triangles at a point occupy a full 360 degrees. The triangular tiling has Schläfli symbol of {3,6}.

<span class="mw-page-title-main">Truncated hexagonal tiling</span>

In geometry, the truncated hexagonal tiling is a semiregular tiling of the Euclidean plane. There are 2 dodecagons (12-sides) and one triangle on each vertex.

<span class="mw-page-title-main">Truncated trihexagonal tiling</span>

In geometry, the truncated trihexagonal tiling is one of eight semiregular tilings of the Euclidean plane. There are one square, one hexagon, and one dodecagon on each vertex. It has Schläfli symbol of tr{3,6}.

<span class="mw-page-title-main">Truncated square tiling</span>

In geometry, the truncated square tiling is a semiregular tiling by regular polygons of the Euclidean plane with one square and two octagons on each vertex. This is the only edge-to-edge tiling by regular convex polygons which contains an octagon. It has Schläfli symbol of t{4,4}.

<span class="mw-page-title-main">Rhombitrihexagonal tiling</span> Semiregular tiling of the Euclidean plane

In geometry, the rhombitrihexagonal tiling is a semiregular tiling of the Euclidean plane. There are one triangle, two squares, and one hexagon on each vertex. It has Schläfli symbol of rr{3,6}.

<span class="mw-page-title-main">Snub trihexagonal tiling</span>

In geometry, the snub hexagonal tiling is a semiregular tiling of the Euclidean plane. There are four triangles and one hexagon on each vertex. It has Schläfli symbol sr{3,6}. The snub tetrahexagonal tiling is a related hyperbolic tiling with Schläfli symbol sr{4,6}.

<span class="mw-page-title-main">Elongated triangular tiling</span>

In geometry, the elongated triangular tiling is a semiregular tiling of the Euclidean plane. There are three triangles and two squares on each vertex. It is named as a triangular tiling elongated by rows of squares, and given Schläfli symbol {3,6}:e.

<span class="mw-page-title-main">Snub square tiling</span>

In geometry, the snub square tiling is a semiregular tiling of the Euclidean plane. There are three triangles and two squares on each vertex. Its Schläfli symbol is s{4,4}.

In geometry, a uniform tiling is a tessellation of the plane by regular polygon faces with the restriction of being vertex-transitive.

In geometry, a uniform honeycomb or uniform tessellation or infinite uniform polytope, is a vertex-transitive honeycomb made from uniform polytope facets. All of its vertices are identical and there is the same combination and arrangement of faces at each vertex. Its dimension can be clarified as n-honeycomb for an n-dimensional honeycomb.

<span class="mw-page-title-main">Dodecagram</span> Star polygon with 12 vertices

In geometry, a dodecagram is a star polygon or compound with 12 vertices. There is one regular dodecagram polygon. There are also 4 regular compounds {12/2},{12/3},{12/4}, and {12/6}.

In geometry, the demiregular tilings are a set of Euclidean tessellations made from 2 or more regular polygon faces. Different authors have listed different sets of tilings. A more systematic approach looking at symmetry orbits are the 2-uniform tilings of which there are 20. Some of the demiregular ones are actually 3-uniform tilings.

<span class="mw-page-title-main">Planigon</span> Convex polygon which can tile the plane by itself

In geometry, a planigon is a convex polygon that can fill the plane with only copies of itself. In the Euclidean plane there are 3 regular planigons; equilateral triangle, squares, and regular hexagons; and 8 semiregular planigons; and 4 demiregular planigons which can tile the plane only with other planigons.

<span class="mw-page-title-main">33344-33434 tiling</span>

In geometry of the Euclidean plane, a 33344-33434 tiling is one of two of 20 2-uniform tilings of the Euclidean plane by regular polygons. They contains regular triangle and square faces, arranged in two vertex configuration: 3.3.3.4.4 and 3.3.4.3.4.

<span class="mw-page-title-main">3-4-3-12 tiling</span>

In geometry of the Euclidean plane, the 3-4-3-12 tiling is one of 20 2-uniform tilings of the Euclidean plane by regular polygons, containing regular triangles, squares, and dodecagons, arranged in two vertex configuration: 3.4.3.12 and 3.12.12.

References