Both "mapbox" and "maplibre" offer Web
Mercator and ‘Globe’ projections:
Globe projection (default)
tmap_mode("maplibre")
#> ℹ tmap modes "plot" -> "view" -> "mapbox" -> "maplibre"
#> ℹ rotate with `tmap::rtm()`switch to "plot" with `tmap::ttm()`
tm_shape(metro) + tm_bubbles(size = "pop2030", fill = "red")Mercator projection
tmap_mode("maplibre")
#> ℹ tmap modes "plot" -> "view" ->
#> "mapbox" -> "maplibre"
tm_shape(metro) + tm_bubbles(size = "pop2030", fill = "red") + tm_crs(3857)In addition, "mapbox" offers a couple of other
projections:
Other projections
Pseudo-cylindrical
tmap_mode("mapbox")
tm_shape(metro) + tm_bubbles(size = "pop2030", fill = "red") + tm_crs("+proj=eqearth")
tm_shape(metro) + tm_bubbles(size = "pop2030", fill = "red") + tm_crs("+proj=wintri")Conic
tm_shape(metro) + tm_bubbles(size = "pop2030", fill = "red") + tm_crs("+proj=eqearth")
tm_shape(metro) + tm_bubbles(size = "pop2030", fill = "red") + tm_crs("+proj=eqearth")