Polygon Clipping

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.


Reference manual

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1.9-1 by Adrian Baddeley, 2 months ago

http://www.angusj.com/delphi/clipper.php, https://sourceforge.net/projects/polyclipping, https://github.com/baddstats/polyclip

Report a bug at https://github.com/baddstats/polyclip/issues

Browse source code at https://github.com/cran/polyclip

Authors: Angus Johnson [aut] (C++ original, http://www.angusj.com/delphi/clipper.php), Adrian Baddeley [aut, trl, cre], Kurt Hornik [ctb], Brian D. Ripley [ctb], Elliott Sales de Andrade [ctb]

Documentation:   PDF Manual  

BSL license

Imported by SubgrPlots, eulerr, spatstat.

Suggested by deldir, maptools, surveillance.

See at CRAN