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0.3-0 by Paul Murrell, 2 years ago
https://github.com/pmur002/gridgeometry, https://stattech.wordpress.fos.auckland.ac.nz/2019/03/04/2019-01-a-geometry-engine-interface-for-grid/
Browse source code at https://github.com/cran/gridGeometry
Authors: Paul Murrell
Documentation: PDF Manual
GPL (>= 2) license
Imports grDevices, polyclip
Depends on grid
Suggests graphics, lattice
Imported by ggrounded, piecepackr.
See at CRAN