This is identical to ggplot2::annotation_custom for use with ggmap
Arguments
- grob
grob 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
Note
annotation_custom()
expects the grob to fill the entire viewport
defined by xmin, xmax, ymin, ymax. Grobs with a different (absolute) size
will be center-justified in that region. Inf values can be used to fill the
full plot panel