addLogo: add a local or remote image (png, jpg, gif, bmp, ...) to a...
In leafem: 'leaflet' Extensions for 'mapview'

This function adds an image to a map. Both local and remote (web) image sources are supported. Position on the map is completely controllable.

addLogo(
  map,
  img,
  alpha = 1,
  src = c("remote", "local"),
  url,
  position = c("topleft", "topright", "bottomleft", "bottomright"),
  offset.x = 50,
  offset.y = 13,
  width = 60,
  height = 60
)

`map`	a mapview or leaflet object.
`img`	the image to be added to the map.
`alpha`	opacity of the added image.
`src`	character specifying the source location ("local" for images from the disk, "remote" for web image sources).
`url`	an optional URL to be opened when clicking on the image (e.g. company's homepage).
`position`	one of "topleft", "topright", "bottomleft", "bottomright".
`offset.x`	the offset in x direction from the chosen position (in pixels).
`offset.y`	the offset in y direction from the chosen position (in pixels).
`width`	width of the rendered image in pixels.
`height`	height of the rendered image in pixels.

library(leaflet)
## default position is topleft next to zoom control

img <- "https://www.r-project.org/logo/Rlogo.svg"
leaflet() %>% addTiles() %>% addLogo(img, url = "https://www.r-project.org/logo/")

## with local image
if (requireNamespace("png")) {
  library(png)

  img <- system.file("img", "Rlogo.png", package="png")
  leaflet() %>% addTiles() %>% addLogo(img, src = "local", alpha = 0.3)

  ## dancing banana gif :-)
  m <- leaflet() %>%
    addTiles() %>%
    addCircleMarkers(data = breweries91)

  addLogo(m, "https://jeroenooms.github.io/images/banana.gif",
          position = "bottomleft",
          offset.x = 5,
          offset.y = 40,
          width = 100,
          height = 100)
}