Isogonal polytope

An isogonal polytope or vertex-transitive polytope is a polytope whose vertices are identical under its symmetry group. In an isogonal polytope, there is a singular vertex figure, and all of the vertices lie on a hypersphere. The dual of an isogonal polytope is an isotopic polytope, which are made out of one facet type. All regular, uniform and scaliform polytopes are isogonal. However, not all isogonal polytopes can be made equilateral, such as the snub decachoron.

If an isogonal polytope is also isotopic, it is called a noble polytope. Self-dual isogonal polytopes are also noble.

Possibly, the earliest mention of the concept of an isogonal figure is found in the Rigveda (ca. 1500-1000 BCE), an ancient text written in Vedic Sanskrit, where it states tásmint sākáṃ triśatā́ ná śaṅkávo 'rpitā́ḥ ṣaṣṭír ná calācalā́saḥ (On it are placed together three hundred and sixty like pegs. They shake not in the least.), referring to the transitivity of the so-called "pegs" (śaṅkú) which connect the vertices of the circle to its center.

Optimization
Most isogonal polytopes can be optimized in the sense of minimizing the edge length variations. However, some isogonal polytopes cannot be optimized in any meaningful way, such as the antiditetragoltriates, because their optimized forms are not topologically identical to these shapes. If an isogonal polytope has no variations in its highest symmetry, such as the triangular duoantiprism, it is considered to be optimized.

There are two methods of optimization: the absolute-value method and the ratio method, which may yield different solutions. Both methods rely on a set variable, defined by a constant. All regular, uniform and scaliform polytopes are optimized polytopes in both of the two methods.

Absolute-value method
This method uses all possible sums of absolute values of differences between two edge length types, and then computing the minimum value of the resulting function. The number of sums required for an isogonal polytope with n edge types is n(n-1)/2. The feasibility of this method depends on the number of variables and the number of edge lengths.

As an example, a truncated octahedron in BC3 symmetry can be defined by all permutations and sign changes of (0, a, b), where a and b are nonzero and distinct from each other. The variable a can be set to a constant value such as 1, yielding (0, 1, b). The two edge lengths are given by:


 * d1 = $\sqrt{2}$ (distance between (0, 1, b) and (1, 0, b))
 * d2 = $\sqrt{2}$|b-1| (distance between (0, 1, b) and (0, b, 1))

Since there are only two edge lengths, only one absolute value sum is needed: f(x) = |$\sqrt{2}$-$\sqrt{2}$|b-1||. The minimum of this function is attained when b is equal to 2, which evaluates to 0. Therefore, any optimized truncated octahedron in this sense is equilateral and hence uniform.

Ratio method
This method is dependent on the polytope's largest and smallest edge lengths. It involves dividing the largest edge length by the smallest edge length, giving a value equal to or greater than 1, and then finding the lowest possible value. Due to the unpredictability of edge lengths, a convenient method is to enumerate all divisions between two edge types and their reciprocals, and then finding the lowest possible value above (or equal to) 1 that is not within the "area" of the functions. For an isogonal polytope with n edge lengths, n(n-1) divisions are required. For topologically similar isogonal polytopes, the largest and smallest edge lengths may vary between edge length types depending on the variable used.

We can use the truncated octahedron example from earlier. In this case the two edge lengths can be interpreted as functions. For b > 2, $\sqrt{2}$|b-1| is larger than $\sqrt{2}$, and for 1 < b < 2, $\sqrt{2}$|b-1| is smaller than $\sqrt{2}$. Dividing the appropriate edge lengths results in a minimum ratio of 1:1 at b = 2, implying that any optimized truncated octahedron in this sense is equilateral and hence uniform.

It is more useful in most cases than the absolute-value method, especially when an isogonal polytope has no uniform realization. The optimized form in this case is the closest to what a "uniform" variant would look like, whereas the result obtained through the absolute-value method has a bigger ratio in some cases. Notable examples are the step prisms, which are more reliably optimized generically than the absolute-value method.

Polygons

 * Regular polygons (infinite, half symmetry variants exist for even-sided polygons with two alternating edge lengths)

Polyhedra

 * Platonic solids (5 total)
 * Tetrahedron (lower symmetry variants are the tetragonal disphenoid and the rhombic disphenoid)
 * Cube (lower symmetry variants are the square prism, the cuboid, and the rectangular trapezoprism)
 * Octahedron (a lower symmetry variant is the triangular antiprism)
 * Dodecahedron (no lower symmetry variants)
 * Icosahedron (lower symmetry variants are the pyritohedral icosahedron and the snub tetrahedron)
 * Archimedean solids (13 total)
 * Truncated tetrahedron
 * Cuboctahedron (a lower symmetry variant is the small rhombitetratetrahedron)
 * Truncated cube
 * Truncated octahedron (a lower symmetry variant is the great rhombitetratetrahedron)
 * Small rhombicuboctahedron (a lower symmetry variant is the pyritohedral small rhombicuboctahedron)
 * Great rhombicuboctahedron
 * Snub cube
 * Icosidodecahedron
 * Truncated dodecahedron
 * Truncated icosahedron
 * Small rhombicosidodecahedron
 * Great rhombicosidodecahedron
 * Snub dodecahedron
 * Polygonal prisms (infinite, half symmetry variants exist for even-sided polygons with bases alternating two edge lengths, and can either be parallel or gyrated with respect to each other)
 * Polygonal antiprisms (a lower symmetry variant are the gyroprisms) (infinite, half symmetry variants also exist with the two bases rotated so that the base-first projection envelope is not a regular polygon)

Polychora

 * Regular polychora (6 total)
 * Pentachoron (a lower symmetry variant is the 5-2 step prism/5-2 gyrochoron)
 * Tesseract (lower symmetry variants are the cubic prism, square-square duoprism, rectangular-square duoprism, rectangular duoprism and the rectangular-rectangular duoprism)
 * Hexadecachoron (lower symmetry variants are the tetrahedral antiprism, rectangular duotegum, digonal-digonal duoantiprism, rhombic disphenoidal antiprism and the 8-3 step prism)
 * Icositetrachoron
 * Hecatonicosachoron
 * Hexacosichoron
 * Non-regular uniform polychora (41 total)
 * Rectified pentachoron (a lower symmetry variant is the 5-2 double step prism)
 * Truncated pentachoron
 * Decachoron (a lower symmetry variant is the pentapentachoron)
 * Small rhombated pentachoron
 * Great rhombated pentachoron
 * Small prismatodecachoron (a lower symmetry variant is the small disprismatopentapentachoron and the triangular-prismatic 10-3 double gyrostep prism)
 * Prismatorhombated pentachoron
 * Great prismatodecachoron (a lower symmetry variant is the great disprismatopentapentachoron)
 * Rectified tesseract (a lower symmetry variant is the runcic tesseract)
 * Truncated tesseract
 * Truncated hexadecachoron (a lower symmetry variant is the cantic tesseract)
 * Tesseractihexadecachoron (a lower symmetry variant is the runcicantic tesseract)
 * Small rhombated tesseract
 * Great rhombated tesseract
 * Small disprismatotesseractihexadecachoron (a lower symmetry variant is the square duoexpandoprism)
 * Prismatorhombated tesseract
 * Prismatorhombated hexadecachoron
 * Great disprismatotesseractihexadecachoron
 * Rectified icositetrachoron (lower symmetry variants are the cantellated hexadecachoron, prismatorhombated demitesseract and the transitional hexafold ditetraswirlchoron)
 * Truncated icositetrachoron (lower symmetry variants are the cantitruncated hexadecachoron and the omnitruncated demitesseract)
 * Tetracontoctachoron (a lower symmetry variant is the icositetraicositetrachoron)
 * Small rhombated icositetrachoron (a lower symmetry variant is the cantic snub icositetrachoron)
 * Great rhombated icositetrachoron
 * Small prismatotetracontoctachoron (a lower symmetry variant is the small disprismatoicositetraicositetrachoron)
 * Prismatorhombated icositetrachoron (a lower symmetry variant is the runcicantic snub icositetrachoron)
 * Great prismatotetracontoctachoron (a lower symmetry variant is the great disprismatoicositetraicositetrachoron)
 * Snub disicositetrachoron (lower symmetry variants are the snub rhombatohexadecachoron and the snub demitesseract)
 * Rectified hecatonicosachoron
 * Rectified hexacosichoron (a lower symmetry variant is the snub tetrahedral hecatonicosachoron)
 * Truncated hecatonicosachoron
 * Truncated hexacosichoron
 * Hexacosihecatonicosachoron
 * Small rhombated hecatonicosachoron
 * Small rhombated hexacosichoron
 * Great rhombated hecatonicosachoron
 * Great rhombated hexacosichoron
 * Small disprismatohexacosihecatonicosachoron
 * Prismatorhombated hecatonicosachoron
 * Prismatorhombated hexacosichoron
 * Great disprismatohexacosihecatonicosachoron
 * Grand antiprism
 * Scaliform polychora (4 total)
 * Truncated tetrahedral cupoliprism
 * Bi-icositetradiminished hexacosichoron
 * Prismatorhombisnub icositetrachoron
 * Swirlprismatodiminished rectified hexacosichoron
 * Rectified isotoxal decachoric and tetracontoctachoric polychora (4 total)
 * Rectified decachoron/Rectified tetracontoctachoron
 * Rectified small prismatodecachoron/Rectified small prismatotetracontoctachoron
 * Truncated isotoxal decachoric and tetracontoctachoric polychora (4 total)
 * Truncated decachoron/Truncated tetracontoctachoron
 * Truncated small prismatodecachoron/Truncated small prismatotetracontoctachoron
 * Decachoric and tetracontoctachoric doublings (40 total)
 * Bidecachoron/Bitetracontoctachoron (the former has a lower symmetry variant as a 10-3 step prism)
 * Biambodecachoron/Biambotetracontoctachoron (the former has a lower symmetry variant as a 10-3 double step prism)
 * Bitruncatodecachoron/Bitruncatotetracontoctachoron
 * Bimesotruncatodecachoron/Bimesotruncatotetracontoctachoron
 * Small birhombatodecachoron/Small birhombatotetracontoctachoron
 * Medial birhombatodecachoron/Medial birhombatotetracontoctachoron
 * Great birhombatodecachoron/Great birhombatotetracontoctachoron
 * Small bicantitruncatodecachoron/Small bicantitruncatotetracontoctachoron
 * Medial bicantitruncatodecachoron/Medial bicantitruncatotetracontoctachoron
 * Great bicantitruncatodecachoron/Great bicantitruncatotetracontoctachoron
 * Transitional bicantitruncatodecachoron/Transitional bicantitruncatotetracontoctachoron
 * Biprismatodecachoron/Biprismatotetracontoctachoron
 * Small biprismatorhombatodecachoron/Small biprismatorhombatotetracontoctachoron
 * Medial biprismatorhombatodecachoron/Medial biprismatorhombatotetracontoctachoron
 * Great biprismatorhombatodecachoron/Great biprismatorhombatotetracontoctachoron
 * Transitional biprismatorhombatodecachoron/Transitional biprismatorhombatotetracontoctachoron
 * Small biomnitruncatodecachoron/Small biomnitruncatotetracontoctachoron
 * Great biomnitruncatodecachoron/Great biomnitruncatotetracontoctachoron
 * Prismatic transitional biomnitruncatodecachoron/Prismatic transitional biomnitruncatotetracontoctachoron
 * Tetrahedral transitional biomnitruncatodecachoron/Cubic transitional biomnitruncatotetracontoctachoron
 * Chiral decachoric and tetracontoctachoric doublings (16 total)
 * Small biomnisnub decachoron/Small biomnisnub tetracontoctachoron
 * Medial biomnisnub decachoron/Medial biomnisnub tetracontoctachoron
 * Great biomnisnub decachoron/Great biomnisnub tetracontoctachoron
 * Small gyrowedged biomnisnub decachoron/Small gyrowedged biomnisnub tetracontoctachoron
 * Great gyrowedged biomnisnub decachoron/Great gyrowedged biomnisnub tetracontoctachoron
 * Antipodial biomnisnub decachoron/Antipodial biomnisnub tetracontoctachoron
 * Prismatic transitional biomnisnub decachoron/Prismatic transitional biomnisnub tetracontoctachoron
 * Tetrahedral transitional biomnisnub decachoron/Cubic transitional biomnisnub tetracontoctachoron
 * Alternated polychora based on regular and prismatic symmetries (15 total)
 * Snub decachoron
 * Small omnisnub bidecachoron
 * Great omnisnub bidecachoron
 * Prismatic transitional omnisnub bidecachoron
 * Tetrahedral transitional omnisnub bidecachoron
 * Snub tesseract
 * Snub tetracontoctachoron
 * Small omnisnub bitetracontoctachoron
 * Great omnisnub bitetracontoctachoron
 * Prismatic transitional omnisnub bitetracontoctachoron
 * Cubic transitional omnisnub bitetracontoctachoron
 * Snub hexacosihecatonicosachoron
 * Pyritohedral icosahedral antiprism (a lower symmetry variant is the snub tetrahedral antiprism)
 * Snub cubic antiprism
 * Snub dodecahedral antiprism
 * Chiral pyritohedral prismatic polychora (1 total)
 * Snub tetrahedral alterprism
 * Oxitic symmetric polychora (12 total)
 * Bitetrahedral tetracontoctachoron
 * Snub bitetrahedral tetracontoctachoron
 * Bitruncatotetrahedral tetracontoctachoron
 * Small omnisnub bitetrahedral tetracontoctachoron
 * Great omnisnub bitetrahedral tetracontoctachoron
 * Small disphenoidal omnisnub bitetrahedral tetracontoctachoron
 * Medial disphenoidal omnisnub bitetrahedral tetracontoctachoron
 * Great disphenoidal omnisnub bitetrahedral tetracontoctachoron
 * Antipodial omnisnub bitetrahedral tetracontoctachoron
 * Antiwedged omnisnub bitetrahedral tetracontoctachoron
 * Gyrowedged omnisnub bitetrahedral tetracontoctachoron
 * Triangular transitional omnisnub bitetrahedral tetracontoctachoron
 * Ixitic symmetric polychora (13 total)
 * Tetrahedral-snub tetrahedral hecatonicosachoron
 * Hecatonicosadiminished hecatonicosachoron
 * Ambotruncatotetrahedral hecatonicosachoron
 * Small snub truncatotetrahedral hecatonicosachoron
 * Medial snub truncatotetrahedral hecatonicosachoron
 * Great snub truncatotetrahedral hecatonicosachoron
 * Truncatosnub tetrahedral hecatonicosachoron
 * Small snub rhombatotetrahedral hecatonicosachoron
 * Medial snub rhombatotetrahedral hecatonicosachoron
 * Great snub rhombatotetrahedral hecatonicosachoron
 * Small snub tetrahedral-transitional hecatonicosachoron
 * Great snub tetrahedral-transitional hecatonicosachoron
 * Snub truncatotetrahedral-transitional hecatonicosachoron
 * Ixoic symmetric polychora (at least 14 total)
 * Bitetrahedral diacositetracontachoron
 * Small bitetratetrahedral diacositetracontachoron
 * Medial bitetratetrahedral diacositetracontachoron
 * Snub bitetrahedral diacositetracontachoron
 * Great bitetratetrahedral diacositetracontachoron
 * Antiwedged bitetratetrahedral diacositetracontachoron
 * Small biambotetrahedral diacositetracontachoron
 * Great biambotetrahedral diacositetracontachoron
 * Transitional biambotetrahedral diacositetracontachoron
 * Bitruncatotetrahedral diacositetracontachoron
 * Biambotruncatotetrahedral diacositetracontachoron
 * Omnisnub tetrahedral hecatonicosachoron
 * Antipodial omnisnub bitetrahedral diacositetracontachoron
 * Disphenoidal omnisnub bitetrahedral diacositetracontachoron
 * Edge-snubs (2 total)
 * Pyritosnub tesseract
 * Pyritosnub alterprism
 * Polyhedral prisms (17 total, variations are the same as the polyhedral bases)
 * Tetrahedral prism
 * Octahedral prism
 * Dodecahedral prism
 * Icosahedral prism
 * Truncated tetrahedral prism
 * Cuboctahedral prism
 * Truncated cubic prism
 * Truncated octahedral prism
 * Small rhombicuboctahedral prism
 * Great rhombicuboctahedral prism
 * Snub cubic prism
 * Icosidodecahedral prism
 * Truncated dodecahedral prism
 * Truncated icosahedral prism
 * Small rhombicosidodecahedral prism
 * Great rhombicosidodecahedral prism
 * Snub dodecahedral prism
 * Antiprismatic prisms (infinite, variations are the same as the antiprismatic bases)
 * Duoprisms (infinite, variations are the same as the polygonal bases)
 * Duotegums (infinite, the bases must have identical isogonal polygons with additional step prism variations)
 * Rectified duoprisms (infinite)
 * Truncated duoprisms (infinite)
 * Duoantiprisms (infinite, lower symmetry variants have one or both antiprism bases twisted)
 * Prismantiprismoids (infinite, contains a ring of alternating prisms and antiprisms, lower symmetry variants have twisted antiprisms)
 * Truncatoprismantiprismoids (infinite, contains two rings of alternating prisms and trapezoprisms)
 * Snub prismantiprismoids (infinite, alternations of the truncatoprismantiprismoids)
 * Ditetragoltriates (infinite, contains two orthogonal rings of identical prisms)
 * Antiditetragoltriates (infinite, contains two antialigned orthogonal rings of two types of prisms each)
 * Duoexpandoprisms (infinite, contains two orthogonal rings of two types of prisms each)
 * Duotruncatoprisms (infinite, contains two orthogonal rings of identical prisms whose bases are truncated polygons)
 * Duotruncatoalterprisms (infinite, contains two orthogonal rings of alternating prisms and cupolae)
 * Duotruncatoalterantiprisms (infinite, contains two orthogonal rings of alternating antiprisms and cupolae)
 * Duotransitionalterprisms (infinite, contains two orthogonal rings of alternating prisms and trapezorhombihedra)
 * Duotransitionalterantiprisms (infinite, contains two orthogonal rings of alternating antiprisms and bicupolae)
 * Double antiprismoids (infinite, contains two orthogonal rings of identical antiprisms)
 * Double gyroantiprismoids (infinite, contains two antialigned orthogonal rings of identical antiprisms)
 * Double chiroantiprismoids (infinite, contains two antialigned gyrated orthogonal rings of identical antiprisms)
 * Double prismantiprismoids (infinite, contains two orthogonal rings of alternating prisms and antiprisms)
 * Double snub prismantiprismoids (infinite, convex hulls of two orthogonal snub prismantiprismoids)
 * Duoprismatic swirlprisms (infinite)
 * Double duoprismatoswirlprisms (infinite)
 * Alterantiprismatic swirlprisms (infinite)
 * Double alterantiprismatic swirlprisms (infinite)
 * Prismantiprismatic swirlprisms (infinite)
 * Double prismantiprismatoswirlprisms (infinite)
 * Truncatoprismantiprismatic swirlprisms (infinite)
 * Double truncatoprismantiprismatoswirlprisms (infinite)
 * Step prisms (infinite, variations are the same as the pentachoron)
 * Step prism compound hulls (infinite)
 * Swirlchoron (infinite)
 * Swirlchoron compound hulls (infinite)

Polytera

 * Regular polytera (3 total)
 * Hexateron
 * Penteract
 * Triacontaditeron
 * Non-regular uniform polytera (55 total)
 * Rectified hexateron
 * Dodecateron
 * Truncated hexateron
 * Bitruncated hexateron
 * Small rhombated hexateron
 * Small birhombated dodecateron
 * Great rhombated hexateron
 * Great birhombated dodecateron
 * Small prismated hexateron
 * Prismatotruncated hexateron
 * Prismatorhombated hexateron
 * Great prismated hexateron
 * Small cellated dodecateron
 * Cellirhombated dodecateron
 * Celliprismated hexateron
 * Celligreatorhombated hexateron
 * Celliprismatotruncated dodecateron
 * Great cellated dodecateron
 * Demipenteract
 * Rectified penteract
 * Rectified triacontaditeron
 * Penteractitriacontaditeron
 * Truncated penteract
 * Truncated triacontaditeron
 * Bitruncated penteract
 * Bitruncated triacontaditeron
 * Small rhombated penteract
 * Small rhombated triacontaditeron
 * Small birhombated penteractitriacontaditeron
 * Great rhombated penteract
 * Great rhombated triacontaditeron
 * Great birhombated penteractitriacontaditeron
 * Small prismated penteract
 * Small prismated hexateron
 * Prismatotruncated penteract
 * Prismatotruncated triacontaditeron
 * Prismatorhombated penteract
 * Prismatorhombated triacontaditeron
 * Great prismated penteract
 * Great prismated triacontaditeron
 * Small cellated penteractitriacontaditeron
 * Cellirhombated penteractitriacontaditeron
 * Celliprismated penteract
 * Celliprismated triacontaditeron
 * Celligreatorhombated penteract
 * Celligreatorhombated triacontaditeron
 * Celliprismatotruncated penteractitriacontaditeron
 * Great cellated penteractitriacontaditeron
 * Truncated demipenteract
 * Small rhombated demipenteract
 * Great rhombated demipenteract
 * Small prismated demipenteract
 * Prismatotruncated demipenteract
 * Prismatorhombated demipenteract
 * Great prismated demipenteract
 * Scaliform polytera (14 total, includes some alterprisms based on decachoric, demitesseractic and tetracontoctachoric symmetries)
 * Tridiminished rectified hexateron
 * Partially-biexpanded hexateron
 * Partially-expanded demipenteract
 * Small rhombated pentachoric alterprism
 * Great rhombated pentachoric alterprism
 * Prismatorhombated pentachoric alterprism
 * Rectified tesseractic alterprism
 * Truncated hexadecachoric alterprism
 * Tesseractihexadecachoric alterprism
 * Icositetrachoric antiprism
 * Rectified icositetrachoric alterprism
 * Small rhombated icositetrachoric alterprism
 * Great rhombated icositetrachoric alterprism
 * Prismatorhombated icositetrachoric alterprism
 * Edge-snubs (2 total)
 * Pyritosnub penteract
 * Pyritosnub tesseractic alterprism
 * Omnisnubs (17 total)
 * Snub dodecateron
 * Omnisnub bidodecateron
 * Snub prismatotriacontaditeron
 * Snub penteract
 * Snub decachoric antiprism
 * Small omnisnub bidecachoric antiprism
 * Great omnisnub bidecachoric antiprism
 * Prismatic transitional omnisnub bidecachoric antiprism
 * Tetrahedral transitional omnisnub bidecachoric antiprism
 * Snub tesseractic antiprism
 * Snub disicositetrachoric antiprism
 * Snub tetracontoctachoric antiprism
 * Small omnisnub bitetracontoctachoric antiprism
 * Great omnisnub bitetracontoctachoric antiprism
 * Prismatic transitional omnisnub bitetracontoctachoric antiprism
 * Cubic transitional omnisnub bitetracontoctachoric antiprism
 * Snub hexacosihecatonicosachoric antiprism
 * Uniform polychoric prisms (46 total)
 * Pentachoric prism
 * Hexadecachoric prism
 * Icositetrachoric prism
 * Hecatonicosachoric prism
 * Hexacosichoric prism
 * Rectified pentachoric prism
 * Truncated pentachoric prism
 * Decachoric prism
 * Small rhombated pentachoric prism
 * Great rhombated pentachoric prism
 * Small prismatodecachoric prism
 * Prismatorhombated pentachoric prism
 * Great prismatodecachoric prism
 * Rectified tesseractic prism
 * Truncated tesseractic prism
 * Truncated hexadecachoric prism
 * Tesseractihexadecachoric prism
 * Small rhombated tesseractic prism
 * Great rhombated tesseractic prism
 * Small disprismatotesseractihexadecachoric prism
 * Prismatorhombated tesseractic prism
 * Prismatorhombated hexadecachoric prism
 * Great disprismatotesseractihexadecachoric prism
 * Rectified icositetrachoric prism
 * Truncated icositetrachoric prism
 * Tetracontoctachoric prism
 * Small rhombated icositetrachoric prism
 * Great rhombated icositetrachoric prism
 * Small prismatotetracontoctachoric prism
 * Prismatorhombated icositetrachoric prism
 * Great prismatotetracontoctachoric prism
 * Snub disicositetrachoric prism
 * Rectified hecatonicosachoric prism
 * Rectified hexacosichoric prism
 * Truncated hecatonicosachoric prism
 * Truncated hexacosichoric prism
 * Hexacosihecatonicosachoric prism
 * Small rhombated hecatonicosachoric prism
 * Small rhombated hexacosichoric prism
 * Great rhombated hecatonicosachoric prism
 * Great rhombated hexacosichoric prism
 * Small disprismatohexacosihecatonicosachoric prism
 * Prismatorhombated hecatonicosachoric prism
 * Prismatorhombated hexacosichoric prism
 * Great disprismatohexacosihecatonicosachoric prism
 * Grand antiprismatic prism
 * Scaliform polychoric prisms (4 total)
 * Truncated tetrahedral cupoliprismatic prism
 * Bi-icositetradiminished hexacosichoric prism
 * Prismatorhombisnub icositetrachoric prism
 * Swirlprismatodiminished rectified hexacosichoric prism
 * Rectified isotoxal dodecateric polytera (3 total)
 * Rectified dodecateron
 * Rectified small birhombated dodecateron
 * Rectified small cellated dodecateron
 * Truncated isotoxal dodecateric polytera (3 total)
 * Truncated dodecateron
 * Truncated small birhombated dodecateron
 * Truncated small cellated dodecateron
 * Dodecateric doublings (at least 6 total)
 * Bidodecateron
 * Biambododecateron
 * Bitruncatododecateron
 * Bimesotruncatododecateron
 * Bimesorhombatododecateron
 * Bicellatododecateron
 * Decachoric, demitesseractic and tetracontoctachoric alterprisms (2 total)
 * Truncated pentachoric alterprism
 * Truncated icositetrachoric alterprism
 * F4+ polychoric alterprisms (3 total)
 * Cantic snub icositetrachoric alterprism
 * Prismatorhombisnub icositetrachoric alterprism
 * Runcicantic snub icositetrachoric alterprism
 * F4+/2 polychoric alterprisms (3 total)
 * Snub tetrahedral icositetrachoric alterprism
 * Snub truncatotetrahedral icositetrachoric alterprism
 * Snub rhombatotetrahedral icositetrachoric alterprism
 * H4+/5 polychoric alterprisms (16 total)
 * Tetrahedral hecatonicosachoric alterprism
 * Snub tetrahedral hecatonicosachoric alterprism
 * Truncated tetrahedral hecatonicosachoric alterprism
 * Tetrahedral-snub tetrahedral hecatonicosachoric alterprism
 * Hecatonicosadiminished hecatonicosachoric alterprism
 * Ambotruncatotetrahedral hecatonicosachoric alterprism
 * Small snub truncatotetrahedral hecatonicosachoric alterprism
 * Medial snub truncatotetrahedral hecatonicosachoric alterprism
 * Great snub truncatotetrahedral hecatonicosachoric alterprism
 * Truncatosnub tetrahedral hecatonicosachoric alterprism
 * Small snub rhombatotetrahedral hecatonicosachoric alterprism
 * Medial snub rhombatotetrahedral hecatonicosachoric alterprism
 * Great snub rhombatotetrahedral hecatonicosachoric alterprism
 * Small snub tetrahedral-transitional hecatonicosachoric alterprism
 * Great snub tetrahedral-transitional hecatonicosachoric alterprism
 * Snub truncatotetrahedral-transitional hecatonicosachoric alterprism
 * Triorthowedges and hexaorthowedges (5 total)
 * Square hexaorthowedge
 * Square dihexaorthowedge
 * Ditetragonal triorthowedge
 * Ditetragonal hexaorthowedge
 * Ditetragonal dihexaorthowedge
 * Disphenoids (infinite, consists of two identical orthogonal regular polygons with a height between them)
 * Prisms (infinite, consists of all the prisms of the 4D isogonal categories not mentioned above and are not duoprisms themselves)
 * Polyhedral duoprisms (infinite, includes antiprism duoprisms)
 * Duoprismatic prisms (infinite)
 * Duoantiprisms (infinite)
 * Duoantiprismatic antiprisms (infinite)
 * Prismantiprismoids (infinite)
 * Double antiprismoidal antiprisms (infinite)
 * Truncated tetrahedral duoalterprisms (infinite, consists of a ring of truncated tetrahedral cupoliprisms)
 * Truncated tetrahedral prismalterprismoids (infinite, similar to the truncated tetrahedral duocupoliprisms but with alternating truncated tetrahedral prisms and truncated tetrahedral cupoliprisms)
 * Duoantiwedges (infinite, all members are scaliform except for the digonal duoantiwedge, which is the square disphenoid)
 * Duotegmatic alterprisms (infinite, related to the duotegums)
 * Duoprismatic antialterprisms (infinite, related to the antiditetragoltriates)
 * Duoprismatic cupoliprisms (infinite, related to the duoexpandoprisms)
 * Duoprismatic truncatocupoliprisms (infinite, related to the duotruncatoprisms)
 * Duoprismatic cupolialterprisms (infinite, related to the duotruncatoalterprisms)
 * Duoantiprismatic antialterprisms (infinite, related to the double gyroantiprismoids)
 * Snub duoantiprismatic alterprisms (infinite, related to the double snub trapezoprismoids)
 * Prismantiprismoidal alterprisms (infinite, related to the double prismantiprismoids)
 * Truncatoprismantiprismoidal alterprisms (infinite, related to the double truncatoprismantiprismoids)
 * Snub prismantiprismoidal alterprisms (infinite, related to the double snub prismantiprismoids)
 * Duoprismatic swirlprismatic alterprisms (infinite, related to the double duoprismatoswirlprisms)
 * Alterantiprismatic swirlprismatic alterprisms (infinite, related to the double alterantiprismatoswirlprisms)
 * Prismantiprismatic swirlprismatic alterprisms (infinite, related to the double prismantiprismatoswirlprisms)
 * Truncatoprismantiprismatic swirlprismatic alterprisms (infinite, related to the double truncatoprismantiprismatoswirlprisms)
 * Step prism alterprisms (infinite)
 * Swirlchoron alterprisms (infinite)

Tilings

 * Regular tilings (3 total)
 * Square tiling
 * Triangular tiling
 * Hexagonal tiling
 * Uniform tilings (8 total)
 * Truncated square tiling
 * Snub square tiling
 * Trihexagonal tiling
 * Truncated hexagonal tiling
 * Small rhombitrihexagonal tiling
 * Great rhombitrihexagonal tiling
 * Snub trihexagonal tiling
 * Elongated triangular tiling

Honeycombs

 * Regular honeycombs (1 total)
 * Cubic honeycomb
 * Uniform honeycombs (27 total)
 * Rectified cubic honeycomb
 * Truncated cubic honeycomb
 * Bitruncated cubic honeycomb
 * Small rhombated cubic honeycomb
 * Great rhombated cubic honeycomb
 * Prismatorhombated cubic honeycomb
 * Great prismated cubic honeycomb
 * Tetrahedral-octahedral honeycomb
 * Truncated tetrahedral-octahedral honeycomb
 * Bitruncated tetrahedral-octahedral honeycomb
 * Great rhombated tetrahedral-octahedral honeycomb
 * Runcinated tetrahedral-octahedral honeycomb
 * Gyrated tetrahedral-octahedral honeycomb
 * Elongated tetrahedral-octahedral honeycomb
 * Gyroelongated tetrahedral-octahedral honeycomb
 * Gyrated triangular prismatic honeycomb
 * Gyroelongated triangular prismatic honeycomb
 * Truncated square prismatic honeycomb
 * Snub square prismatic honeycomb
 * Triangular prismatic honeycomb
 * Hexagonal prismatic honeycomb
 * Trihexagonal prismatic honeycomb
 * Truncated hexagonal prismatic honeycomb
 * Small rhombitrihexagonal prismatic honeycomb
 * Great rhombitrihexagonal prismatic honeycomb
 * Snub trihexagonal prismatic honeycomb
 * Elongated triangular prismatic honeycomb
 * Scaliform honeycombs (at least 23 total)
 * Gyrated rectified cubic honeycomb
 * Prismatorhombisnub bicubic honeycomb
 * Dissected rectified cubic honeycomb (6Q3-2S3-gyro)
 * Dissected gyrated rectified cubic honeycomb (6Q3-2S3-ortho)
 * Dissected elongated rectified cubic honeycomb (3Q3-S3-2P6-2P3-gyro)
 * Dissected elongated gyrated rectified cubic honeycomb (3Q3-S3-2P6-2P3-ortho)
 * Dissected small rhombated tetrahedral-octahedral honeycomb (3Q4-T-2P8-P4)
 * Truncated square alterprismatic honeycomb (6Q4-2T)
 * Bisected tetrahedral-octahedral honeycomb (10Y4-8T-0)
 * Bisected gyrated tetrahedral-octahedral honeycomb (10Y4-8T-3)
 * Alternate-bisected tetrahedral-octahedral honeycomb (10Y4-8T-2-alt)
 * Helical-bisected tetrahedral-octahedral honeycomb (10Y4-8T-2-hel)
 * Alternate-bisected gyrated tetrahedral-octahedral honeycomb (10Y4-8T-1-alt)
 * Helical-bisected gyrated tetrahedral-octahedral honeycomb (10Y4-8T-1-hel)
 * Elongated bisected tetrahedral-octahedral honeycomb (5Y4-4T-4P4)
 * Paraelongated bisected tetrahedral-octahedral honeycomb (5Y4-4T-6P3-sq-para)
 * Skew-elongated bisected tetrahedral-octahedral honeycomb (5Y4-4T-6P3-sq-skew)
 * Bisected elongated tetrahedral-octahedral honeycomb (5Y4-4T-6P3-tri-0)
 * Bisected elongated gyrated tetrahedral-octahedral honeycomb (5Y4-4T-6P3-tri-3)
 * Alternate-bisected elongated tetrahedral-octahedral honeycomb (5Y4-4T-6P3-tri-2-alt)
 * Helical-bisected elongated tetrahedral-octahedral honeycomb (5Y4-4T-6P3-tri-2-hel)
 * Alternate-bisected elongated gyrated tetrahedral-octahedral honeycomb (5Y4-4T-6P3-tri-1-alt)
 * Helical-bisected elongated gyrated tetrahedral-octahedral honeycomb (5Y4-4T-6P3-tri-1-hel)