In geometry, the convex hull, convex envelope or convex closure of a shape is the smallest convex set that contains it. The convex hull may be defined either...
57 KB (7,147 words) - 20:40, 3 March 2025
Algorithms that construct convex hulls of various objects have a broad range of applications in mathematics and computer science. In computational geometry...
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is always a convex curve. The intersection of all the convex sets that contain a given subset A of Euclidean space is called the convex hull of A. It is...
27 KB (3,454 words) - 21:27, 26 February 2025
Carathéodory's theorem is a theorem in convex geometry. It states that if a point x {\displaystyle x} lies in the convex hull C o n v ( P ) {\displaystyle \mathrm...
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learning resources about Convex combination Affine hull Carathéodory's theorem (convex hull) Simplex Barycentric coordinate system Convex space Rockafellar,...
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every convex set is orthogonally convex but not vice versa. For the same reason, the orthogonal convex hull itself is a subset of the convex hull of the...
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The dynamic convex hull problem is a class of dynamic problems in computational geometry. The problem consists in the maintenance, i.e., keeping track...
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the convex hull of its edges. Additional properties of convex polygons include: The intersection of two convex polygons is a convex polygon. A convex polygon...
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A kinetic convex hull data structure is a kinetic data structure that maintains the convex hull of a set of continuously moving points. It should be distinguished...
12 KB (1,934 words) - 20:41, 10 November 2022
locally convex space, the convex hull and the disked hull of a totally bounded set is totally bounded. In a complete locally convex space, the convex hull and...
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Polyhedron (redirect from Convex polyhedra)
polyhedral surface that bounds it. Every convex polyhedron is the convex hull of its vertices, and the convex hull of a finite set of points is a polyhedron...
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C} is the convex hull of its extremal rays. For a vector space V {\displaystyle V} , every linear subspace of V {\displaystyle V} is a convex cone. In...
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Function of several complex variables (redirect from Holomorphically convex hull)
The polynomially convex hull contains the holomorphically convex hull. The domain G {\displaystyle G} is called holomorphically convex if for every compact...
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convex set of points in space. Other important definitions are: as the intersection of half-spaces (half-space representation) and as the convex hull...
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spheres determines a specific volume known as the convex hull of the packing, defined as the smallest convex set that includes all the spheres. There are many...
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"balanced"), in which case it is called a disk. The disked hull or the absolute convex hull of a set is the intersection of all disks containing that set...
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In discrete geometry and computational geometry, the convex hull of a simple polygon is the polygon of minimum perimeter that contains a given simple...
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and computational geometry, the relative convex hull or geodesic convex hull is an analogue of the convex hull for the points inside a simple polygon or...
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Local convex hull (LoCoH) is a method for estimating size of the home range of an animal or a group of animals (e.g. a pack of wolves, a pride of lions...
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Delone triangulation of a set of points in the plane subdivides their convex hull into triangles whose circumcircles do not contain any of the points;...
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Closed hulls In a locally convex space, convex hulls of bounded sets are bounded. This is not true for TVSs in general. The closed convex hull of a set...
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geometric object that was discovered by Paul Schatz in 1929. It is the convex hull of a skeletal frame made by placing two linked congruent circles in perpendicular...
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Krein–Milman theorem (category Convex hulls)
to the closed convex hull of its extreme points. This theorem generalizes to infinite-dimensional spaces and to arbitrary compact convex sets the following...
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Quickhull (redirect from Quick hull)
Quickhull is a method of computing the convex hull of a finite set of points in n-dimensional space. It uses a divide and conquer approach similar to...
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piece from a figure, its area decreases but its perimeter may not. The convex hull of a figure may be visualized as the shape formed by a rubber band stretched...
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Graham scan (category Convex hull algorithms)
Graham's scan is a method of finding the convex hull of a finite set of points in the plane with time complexity O(n log n). It is named after Ronald...
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problems, including point in polygon testing, area computation, the convex hull of a simple polygon, triangulation, and Euclidean shortest paths. Other...
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Constantin Carathéodory (section Convex geometry)
Carathéodory's theorem in convex geometry states that if a point x {\displaystyle x} of R d {\displaystyle \mathbb {R} ^{d}} lies in the convex hull of a set P {\displaystyle...
44 KB (4,901 words) - 11:34, 5 January 2025
Some fundamental problems of this type are: Convex hull: Given a set of points, find the smallest convex polyhedron/polygon containing all the points...
15 KB (2,101 words) - 04:13, 7 April 2024
Gift wrapping algorithm (category Convex hull algorithms)
geometry, the gift wrapping algorithm is an algorithm for computing the convex hull of a given set of points. In the two-dimensional case the algorithm is...
5 KB (680 words) - 12:25, 19 June 2024