| annotation_raster {ggplot2} | R Documentation |
This is a special version of geom_raster() optimised for static
annotations that are the same in every panel. These annotations
will not affect scales (i.e. the x and y axes will not grow to cover
the range of the raster, and the raster must already have its own
colours). This is useful for adding bitmap images.
annotation_raster(raster);