Class of algorithms which use a moving line to solve geometrical problems
Animation of Fortune's algorithm, a sweep line technique for constructing Voronoi diagrams.
In computational geometry, a sweep line algorithm or plane sweep algorithm is an algorithmic paradigm that uses a conceptual sweep line or sweep surface to solve various problems in Euclidean space. It is one of the critical techniques in computational geometry.
The idea behind algorithms of this type is to imagine that a line (often a vertical line) is swept or moved across the plane, stopping at some points. Geometric operations are restricted to geometric objects that either intersect or are in the immediate vicinity of the sweep line whenever it stops, and the complete solution is available once the line has passed over all objects.
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computational geometry, a sweeplinealgorithm or plane sweepalgorithm is an algorithmic paradigm that uses a conceptual sweepline or sweep surface to solve...
tool Sweep account, a kind of bank account Sweeplinealgorithm, a concept in computational geometry Sweeps, a regional English term for windmill sails...
of segments is to use a sweeplinealgorithm, where we imagine a line sliding across the line segments and we track which line segments it intersects at...
calipers can be interpreted as the projective dual of a sweeplinealgorithm in which the sweep is across slopes of lines rather than across x- or y-coordinates...
smoothing: an algorithm to smooth a polygonal mesh Line segment intersection: finding whether lines intersect, usually with a sweeplinealgorithm Bentley–Ottmann...
partitioned into monotone subpolygons in O(n log n) time using a sweep-line approach. The algorithm does not require the polygon to be simple, thus it can be...
in computational geometry, and is known for the Shamos–Hoey sweeplinealgorithm for line segment intersection detection and for the rotating calipers...
on polygons tend to use plane sweepalgorithms (or Sweeplinealgorithms). A list of papers using plane sweepalgorithms for Boolean operations on polygons...
smoothing: an algorithm to smooth a polygonal mesh Line segment intersection: finding whether lines intersect, usually with a sweeplinealgorithm Bentley–Ottmann...
other algorithms. The technique is also known as stop-and-copy. Cheney's algorithm is an improvement on the semi-space collector. A mark and sweep garbage...
problem. Both sweeplinealgorithms and divide-and-conquer algorithms with this slower time bound are commonly taught as examples of these algorithm design techniques...
be constructed in O(n log n) using a divide and conquer algorithm or a sweeplinealgorithm. The problem commonly arises in physical design of electronic...
tracing algorithm is similar to the Square tracing algorithm with similar weaknesses but works with 8-connected (diagonal) patterns Radial sweep Theo Pavlidis’...
operations are monotonic. Similarly, in sweeplinealgorithms in computational geometry, events at which the sweepline crosses a point of interest are prioritized...
the top; this is conceptually similar to the Bentley–Ottmann algorithm. This sweepline approach divides the problem space by scanlines, imaginary horizontal...
moving canon style one at a time. After each movement, the line takes a step forward. Algorithm March lyrics, in English and Japanese (Romaji). Note: this...
parallel algorithms, both as a test problem to be solved and as a useful primitive to be used as a subroutine in other parallel algorithms. Abstractly...
divide-and-conquer algorithm to compute the visibility polygon was proposed in 1987. An angular sweep, i.e. rotational plane sweepalgorithm to compute the...
Delaunay triangulation that uses a radially propagating sweep-hull, and a flipping algorithm. The sweep-hull is created sequentially by iterating a radially-sorted...
simultaneous sweep through a row of A and a column of B) incurs a cache miss when accessing an element of B. This means that the algorithm incurs Θ(n3)...
A cellular evolutionary algorithm (cEA) is a kind of evolutionary algorithm (EA) in which individuals cannot mate arbitrarily, but every one interacts...
Refinement collision detection algorithm is a technique for determining whether two convex shapes overlap. The algorithm was created by Gary Snethen in...
monotone polygon is sweepable by a line which does not change its orientation during the sweep. A polygon is strictly sweepable if no portion of its...
∇ Q i ( w ) . {\displaystyle w:=w-\eta \,\nabla Q_{i}(w).} As the algorithmsweeps through the training set, it performs the above update for each training...
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