get_map() is a smart wrapper that queries the Google Maps,
OpenStreetMap, and Stadia Maps servers for a map.
get_map(
location = c(lon = -95.3632715, lat = 29.7632836),
zoom = "auto",
scale = "auto",
maptype = c(GOOGLE_VALID_MAP_TYPES, STADIA_VALID_MAP_TYPES),
source = c("google", "osm", "stadia"),
force = ifelse(source == "google", TRUE, FALSE),
messaging = FALSE,
urlonly = FALSE,
filename = NULL,
crop = TRUE,
color = c("color", "bw"),
language = "en-EN",
...
)a ggmap object (a classed raster object with a bounding box attribute)
an address, longitude/latitude pair (in that order), or left/bottom/right/top bounding box
map zoom, an integer from 3 (continent) to 21 (building), default value 10 (city). openstreetmaps limits a zoom of 18, and the limit on Stadia Maps depends on the maptype. "auto" automatically determines the zoom for bounding box specifications, and is defaulted to 10 with center/zoom specifications. maps of the whole world currently not supported.
scale argument of get_googlemap() or get_openstreetmap()
character string providing map theme. options available are "terrain", "terrain-background", "satellite", "roadmap", and "hybrid" (Google Maps), "stamen_terrain", "stamen_toner", "stamen_toner_lite", "stamen_watercolor", "stamen_terrain_background", "stamen_toner_background", "stamen_terrain_lines", "stamen_terrain_labels", "stamen_toner_lines", "stamen_toner_labels" (Stadia Maps)
Google Maps ("google"), OpenStreetMap ("osm"), Stadia Maps ("stadia")
force new map (don't use archived version)
turn messaging on/off
return url only
destination file for download (file extension added according
to format). Default NULL means a random tempfile().
(Stadia and cloudmade maps) crop tiles to bounding box
color ("color") or black-and-white ("bw")
language for google maps
...
David Kahle david@kahle.io
ggmap()