View extent/bbox of spatial objects interactively

This function produces an interactive view of the extent/bbox of the supplied spatial object

viewExtent(
  x,
  map = NULL,
  popup = NULL,
  layer.name = NULL,
  alpha.regions = 0.2,
  label = NULL,
  ...
)

Arguments

x: either a Raster*, sf* or Spatial* object
map: a leaflet or mapview map the extent should be added to. If NULL standard background layers are created.
popup: a list of HTML strings with the popup contents, usually created from popupTable. See addControl for details.
layer.name: the name of the layer to be shown on the map.
alpha.regions: opacity of the fills or the raster layer(s).
label: a character vector of labels to be shown on mouseover. See addControl for details.
...: additional arguments passed on to addRectangles

Author

Tim Appelhans

Examples

library(leaflet)

viewExtent(breweries)
viewExtent(franconia) + breweries
mapview(franconia) %>% leafem::addExtent(franconia, fillColor = "yellow")

leaflet() %>% addProviderTiles("OpenStreetMap") %>% leafem::addExtent(breweries)

leaflet() %>% addProviderTiles("OpenStreetMap") %>% leafem::addExtent(breweries)