<p>When first created this data set was from 2018-04-28.</p>

Functions to produce a fully fledged 'geo-spatial' object extent as a
'SpatialPolygonsDataFrame'. Also included are functions to generate polygons
from raster data using 'quadmesh' techniques, a round number buffered extent, and
general spatial-extent and 'raster-like' extent helpers missing from the originating
packages. Some latitude-based tools for polar maps are included.

Michael D. Sumner

ice: A raster data set with southern ocean sea ice concentration

Description

Arguments