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[ Source: libmath-convexhull-monotonechain-perl  ]

Package: libmath-convexhull-monotonechain-perl (0.1-1 and others)

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Perl module to calculate a convex hull using Andrew's monotone chain algorithm

Math::ConvexHull::MonotoneChain optionally exports a single function convex_hull which calculates the convex hull of the input points and returns it. Andrew's monotone chain convex hull algorithm constructs the convex hull of a set of 2-dimensional points in O(n*log(n)) time.

It does so by first sorting the points lexicographically (first by x-coordinate, and in case of a tie, by y-coordinate), and then constructing upper and lower hulls of the points in O(n) time. It should be somewhat faster than a plain Graham's scan (also O(n*log(n))) in practice since it avoids polar coordinates.

Tags: Software Development: Perl Development, Függvény-könyvtárak, Implemented in: implemented-in::c, implemented-in::perl, Role: Development Library

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Download for all available architectures
Architecture Version Package Size Installed Size Files
alpha (unofficial port) 0.1-1+b7 8.6 kB37.0 kB [list of files]
amd64 0.1-1+b7 8.5 kB42.0 kB [list of files]
arm64 0.1-1+b6 8.4 kB38.0 kB [list of files]
armel 0.1-1+b7 9.6 kB37.0 kB [list of files]
armhf 0.1-1+b7 8.0 kB33.0 kB [list of files]
hppa (unofficial port) 0.1-1+b4 9.0 kB37.0 kB [list of files]
i386 0.1-1+b7 8.7 kB41.0 kB [list of files]
m68k (unofficial port) 0.1-1+b7 8.2 kB37.0 kB [list of files]
mips64el 0.1-1+b5 8.4 kB38.0 kB [list of files]
mipsel 0.1-1+b7 8.4 kB37.0 kB [list of files]
powerpcspe (unofficial port) 0.1-1+b3 8.4 kB93.0 kB [list of files]
ppc64 (unofficial port) 0.1-1+b9 9.0 kB94.0 kB [list of files]
ppc64el 0.1-1+b5 8.9 kB94.0 kB [list of files]
riscv64 (unofficial port) 0.1-1+b1 8.1 kB37.0 kB [list of files]
s390x 0.1-1+b9 8.4 kB37.0 kB [list of files]
sh4 (unofficial port) 0.1-1+b6 8.4 kB37.0 kB [list of files]
sparc64 (unofficial port) 0.1-1+b8 8.3 kB38.0 kB [list of files]
x32 (unofficial port) 0.1-1+b7 8.5 kB41.0 kB [list of files]