ggspatial: Spatial data framework for ggplot2

Spatial data plus the power of the ggplot2 framework means easier mapping when input data are already in the form of Spatial* objects (most spatial data in R).

The ggspatial package provides several functions to convert spatial objects to ggplot2 layers. There are three cases: vector data (geom_spatial() or ggspatial()), raster data (geom_spatial() or ggraster()), and tiled basemap (geom_osm() or ggosm()). Their usage is almost identical to normal ggplot geom_* functions, except that the mapping and the data arguments are switched (usually mapping comes before data, but in this context, where the type of the object determines the method that gets called, it makes more sense for data to come first).