10.17608/k6.auckland.7796831.v1 Paul Murrell Paul Murrell A Geometry Engine Interface for 'grid' The University of Auckland 2019 Rlanguage grid polyclip geometry Computer Graphics Computer Software 2019-03-04 01:51:36 Dataset https://auckland.figshare.com/articles/dataset/A_Geometry_Engine_Interface_for_grid_/7796831 This report describes a new function in 'grid' called <code>grobCoords</code> and a new package called 'gridGeometry' that combines <code>grobCoords</code> with the 'polyclip' package to provide a geometry engine interface for 'grid'.