World map with ggmap

Question

I am using ggmap and wish to have a map of the world centered on Australia to which I can easily plot geocoded points. ggmap seems to be a lot easier to use compared to some

Answer 1

I have managed to build world map based on Google Maps. This is unfortunately slightly distorted, as I believe ggmap/Google Maps imposes restrictions (data length = 409600 pixels, with dimension being a multiple of 792). Nevertheless, the following combination of size, scale and zoom parameters delivers Google world map with ggmap.

Natrally, you can alter lon to change the point of longitudal focus to Australia, as you wish.

library(tidyverse)

your_gmaps_API_key <- ""

get_googlemap(center = c(lon = 0, lat = 0)
          , zoom = 1
          , maptype="roadmap"
          , size = c(512,396) 
          , scale = 2
          , color = "bw"
          , key = your_gmaps_API_key) %>% ggmap(.)

Note: points on the map are from my own dataset and not produced by the code above, but the world map is of core importance here.