The Wolfram Language provides a rich collection of basic regions, ranging from simple triangles and infinite lines to general ellipsoids and conic hulls. Many basic regions are also defined for any dimension. Basic regions work just like any other region in the Wolfram Language and can be analyzed, used as input to solvers, or used as a building block to construct more complex regions.

EmptyRegion — an empty region in D

FullRegion — a full region in D

Interval — an interval in 1D

Point — a point or list of points in D

Line — a piecewise linear line in D

InfiniteLine — a doubly infinite line in D

HalfLine — a half infinite line (or ray) in D

SSSTriangle — a side-side-side triangle in 2D

SASTriangle — a side-angle-side triangle in 2D

ASATriangle — an angle-side-angle triangle in 2D

AASTriangle — an angle-angle-side triangle in 2D

Triangle — a triangle in D

Rectangle — an axis-aligned rectangle in 2D

Parallelogram — a parallelogram, rhomboid, rhombus, etc. in 2D

RegularPolygon — a regular polygon in 2D

Polygon — a polygon in 2D or 3D

InfinitePlane — a plane in D

HalfPlane — a half-plane in D

Cube — a filled cube in 3D

Dodecahedron — a filled dodecahedron in 3D

Icosahedron — a filled icosahedron in 3D

Octahedron — a filled octahedron in 3D

Tetrahedron — a filled tetrahedron in 3D

UniformPolyhedron — a uniform polyhedron in 3D

Hexahedron — a filled hexahedron in 3D

Pyramid — a filled pyramid over a quadrilateral in 3D

Prism — a filled triangular prism in 3D

Cuboid — a filled axis-aligned cuboid, box, etc. in D

Parallelepiped — a filled parallelepiped, parallelotope, etc. in D

Simplex — a simplex in D

Hyperplane — a hyperplane in D

HalfSpace — a half-space in D

AffineSpace — an affine space in D

AffineHalfSpace — an affine half-space in D

ConicHullRegion — a polyhedral cone in D

Circle — a circle, ellipse, or arc in 2D

CircleThrough — circle through specified points

Disk — a disk, filled ellipse, or sector in 2D

DiskSegment — a filled segment of disk or ellipse in 2D

Annulus — the filled region between two concentric circles in 2D

StadiumShape — a filled stadium shape in 2D

Sphere — a spherical shell in D given by center and radius

Circumsphere — a sphere in D given by points (circumscribing the simplex)

Insphere — a sphere in D given by n+1 points (inscribed in the simplex)

Ball — a filled ball in D given by center and radius

Ellipsoid — a filled ellipsoid in D

Cylinder — a filled cylinder given by two points and a radius in 3D

Cone — a filled cone given by two points and a radius in 3D

CapsuleShape — a filled capsule given by two points and radius in 3D

SphericalShell — the filled region between two spheres in D

Torus — a torus in 3D

FilledTorus — a filled torus in 3D

Tube — a tube around a line or curve in 3D

HilbertCurve — generate a Hilbert curve in nD

PeanoCurve — generate a Peano curve in 2D

SierpinskiCurve — generate a Sierpiński curve in 2D

KochCurve — generate a Koch curve in 2D

Regions in 1D

Point   ▪ Hyperplane   ▪ Interval   ▪ Line   ▪ InfiniteLine   ▪ HalfLine   ▪ HalfSpace   ▪ AffineSpace   ▪ AffineHalfSpace   ▪ Sphere   ▪ Circumsphere   ▪ Insphere   ▪ Ball

Regions in 2D

Point   ▪ Line   ▪ Hyperplane   ▪ InfiniteLine   ▪ HalfLine   ▪ Triangle   ▪ SSSTriangle   ▪ SASTriangle   ▪ ASATriangle   ▪ AASTriangle   ▪ Rectangle   ▪ Parallelogram   ▪ RegularPolygon   ▪ Polygon   ▪ InfinitePlane   ▪ HalfPlane   ▪ HalfSpace   ▪ AffineSpace   ▪ AffineHalfSpace   ▪ Simplex   ▪ ConicHullRegion   ▪ Circle   ▪ CircleThrough   ▪ Disk   ▪ DiskSegment   ▪ Sphere   ▪ Circumsphere   ▪ Insphere   ▪ Ball   ▪ Annulus   ▪ StadiumShape

Regions in 3D

Point   ▪ Line   ▪ InfiniteLine   ▪ HalfLine   ▪ Triangle   ▪ Polygon   ▪ Hyperplane   ▪ InfinitePlane   ▪ HalfPlane   ▪ HalfSpace   ▪ AffineSpace   ▪ AffineHalfSpace   ▪ ConicHullRegion   ▪ Simplex   ▪ Cube   ▪ Dodecahedron   ▪ Icosahedron   ▪ Octahedron   ▪ Tetrahedron   ▪ Cuboid   ▪ Parallelepiped   ▪ Hexahedron   ▪ Prism   ▪ Pyramid   ▪ Sphere   ▪ Circumsphere   ▪ Insphere   ▪ Ball   ▪ Cylinder   ▪ Cone   ▪ SphericalShell   ▪ CapsuleShape   ▪ Torus   ▪ FilledTorus   ▪ Tube

Regions in D

Point   ▪ Line   ▪ InfiniteLine   ▪ HalfLine   ▪ Triangle   ▪ InfinitePlane   ▪ HalfPlane   ▪ Hyperplane   ▪ Simplex   ▪ Cuboid   ▪ Parallelepiped   ▪ HalfSpace   ▪ AffineSpace   ▪ AffineHalfSpace   ▪ ConicHullRegion   ▪ Sphere   ▪ Circumsphere   ▪ Insphere   ▪ Ball   ▪ Ellipsoid   ▪ SphericalShell

Basic Regions from Data

BoundingRegion — basic region bounds from points and regions

RegionFit — basic regions fitted to data

Circumsphere   ▪ Insphere   ▪ CircumscribedBall   ▪ InscribedBall