inset_raster: Add a raster annotation to a map
Description
This is a special version of ggplot2::annotation_raster for use with ggmapUsage
inset_raster(raster, xmin, xmax, ymin, ymax)
Arguments
raster
raster object to display
xmin,xmax
x location (in data coordinates) giving horizontal
location of raster
ymin,ymax
y location (in data coordinates) giving vertical
location of raster
Details
Most useful for adding bitmap images