buffer_extent           Whole grain buffers
extent                  Extent of simple features
ice                     A raster data set with southern ocean sea ice
                        concentration
latitudecircle          Latitude circle
latmask                 Latitude mask for polar raster
lux                     The 'lux' Spatial Polygons from the 'raster'
                        package.
polygonize              Create a polygon layer from a raster.
psf                     A polygon data set with 'sf' class.
spex                    Polygon extent
spex-package            spex
xlim                    Axis ranges from extent
