Author: Angus Johnson. Ported to R by Adrian Baddeley and Brian Ripley.
Description: R port of the Clipper library. Performs polygon clipping operations (intersection, union etc).

Authors@R: c(person("Angus", "Johnson", role = "aut",
person("Adrian", "Baddeley", role = c("aut", "trl", "cre"),
person(c("Brian", "D."), "Ripley", role = "ctb"),
person("Elliott", "Sales de Andrade", role="ctb"),
person("Paul", "Murrell", role = "ctb"))
Description: 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.
Note: built from Clipper C++ version 6.4.0
Author: Angus Johnson [aut] (C++ original,

Description: 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.

Description: 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.

Authors@R: c(person("Angus", "Johnson", role = "aut"),
Description: 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.