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gnu: Add r-polyclip.

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* gnu/packages/cran.scm (r-polyclip): New variable.
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Ricardo Wurmus 2019-03-27 15:44:32 +01:00
parent 91e06bedf8
commit 09dde7fb01
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gnu/packages/cran.scm
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@ -13221,3 +13221,28 @@ (define-public r-tweenr
vectorized interpolaters for common R data types such as numeric, date and
color.")
(license license:expat)))
(define-public r-polyclip
(package
(name "r-polyclip")
(version "1.10-0")
(source
(origin
(method url-fetch)
(uri (cran-uri "polyclip" version))
(sha256
(base32
"0jyk4maqiblvj095jd59dr76kbniyli3v3xvy0a72ljszq6vrnkl"))))
(build-system r-build-system)
(native-inputs `(("pkg-config" ,pkg-config)))
(home-page "http://www.angusj.com/delphi/clipper.php")
(synopsis "Polygon clipping")
(description
"This package provides an R port of the library Clipper. It performs
polygon clipping operations (intersection, union, set minus, set difference)
for polygonal regions of arbitrary complexity, including holes. It computes
offset polygons (spatial buffer zones, morphological dilations, Minkowski
dilations) for polygonal regions and polygonal lines. It computes the
Minkowski Sum of general polygons. There is a function for removing
self-intersections from polygon data.")
(license license:boost1.0)))