mf_background function

Plot a background image

Plot a background image on an existing plot

mf_background(filename, ...)

Arguments

• filename: filename of the background image, PNG or JPG/JPEG format.
• ...: further parameters for rasterImage

Returns

No return value, a background image is displayed.

Examples

mtq <- mf_get_mtq()
mf_map(mtq, col = NA, border = NA)
mf_background(system.file("img/background.jpg", package = "mapsf"))
mf_map(mtq, lwd = 3, col = NA, border = "white", add = TRUE)
mf_credits(
  txt = "Background photo by Noita Digital on Unsplash",
  col = "white"
)