Construct · 1 fields · 1 citations

hull: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct Nearest construct by meaning·not indexed
hull1 CONSTRUCTConvex hullGRAHAM · CONVEX HULL

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Computational geometry

The tightest convex boundary around a set of points

In computational geometry the convex hull of a finite set of points is the smallest convex region that contains all of them (picture a rubber band snapped around the outermost points). Graham's 1972 An efficient algorithm for determining the convex hull of a finite planar set gave the sorting-plus-scan method that computes the hull of n planar points in order n-log-n time, which made the hull a workhorse of pattern recognition, collision detection, and spatial statistics. The referent is a bounding structure defined purely by geometry, with no water, seed, or ship in sight; it shares only the word 'hull' with a vessel's body or a grain's coat.[1]

Unit
The ordered set of vertices forming the enclosing convex polygon or polytope
Recovery means
Not applicable
Measured by
Characterised by its vertices, edges, and area or volume, and by the algorithmic cost of constructing it

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Nearby constructs

carry1 fields · 1 citationsanchor · a standalone constructarchitecture3 fields · 4 citationsjingle · one word, three constructsband2 fields · 2 citationsjingle · one word, two constructs

References

  1. Graham, R. L. (1972). An efficient algorithm for determining the convex hull of a finite planar set. Information Processing Letters, 1(4), 132–133. https://doi.org/10.1016/0020-0190(72)90045-2

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