R port of Angus Johnson's open source library 'Clipper'. Performs polygon clipping operations (intersection, union, set minus, set difference) for polygonal regions of arbitrary complexity, including holes. Computes offset polygons (spatial buffer zones, morphological dilations, Minkowski dilations) for polygonal regions and polygonal lines. Computes Minkowski Sum of general polygons. There is a function for removing self-intersections from polygon data.

R port of the Clipper library. Performs polygon clipping operations (intersection, union, set minus, set difference) for polygonal regions of arbitrary complexity, including holes. Also computes offset polygons (spatial buffer zones, morphological dilations, Minkowski dilations) for polygonal regions and polygonal lines.

c(person("Angus", "Johnson", role = "aut"),
person("Adrian", "Baddeley", role = c("aut", "cre"),
email = "Adrian.Baddeley@curtin.edu.au"),
person("Brian", "Ripley", role = "ctb"))
R port of Angus Johnson's open source library Clipper. Performs polygon clipping operations (intersection, union, set minus, set difference) for polygonal regions of arbitrary complexity, including holes. Also computes offset polygons (spatial buffer zones, morphological dilations, Minkowski dilations) for polygonal regions and polygonal lines. There is a function for removing self-intersections from polygon data.
Angus Johnson [aut],
Adrian Baddeley [aut, cre],
Brian Ripley [ctb]

c(person("Angus", "Johnson", role = "aut",
comment="C++ original, http://www.angusj.com/delphi/clipper.php"),
person("Adrian", "Baddeley", role = c("aut", "trl", "cre"),
email = "Adrian.Baddeley@curtin.edu.au"),
person(c("Brian", "D."), "Ripley", role = "ctb"))
Angus Johnson [aut] (C++ original,
http://www.angusj.com/delphi/clipper.php),
Adrian Baddeley [aut, trl, cre],
Brian D. Ripley [ctb]

c(person("Angus", "Johnson", role = "aut",
comment="C++ original, http://www.angusj.com/delphi/clipper.php"),
person("Adrian", "Baddeley", role = c("aut", "trl", "cre"),
email = "Adrian.Baddeley@curtin.edu.au"),
person(c("Brian", "D."), "Ripley", role = "ctb"),
person("Kurt", "Hornik", role = "ctb"))
Angus Johnson [aut] (C++ original,
http://www.angusj.com/delphi/clipper.php),
Adrian Baddeley [aut, trl, cre],
Brian D. Ripley [ctb],
Kurt Hornik [ctb]