Basemap providers
This example shows how to programmatically add tile providers, and add them to a layers control.
library(leaflet)
# Use all providers that begin with "Esri"
esri <- grep("^Esri", providers, value = TRUE)
m <- leaflet() %>%
setView(0,0,1) %>%
addLayersControl(
baseGroups = names(esri),
options = layersControlOptions(collapsed = TRUE))
for (provider in esri) {
m <- m %>% addProviderTiles(provider, group = provider)
}
m
Provider with options
This example shows how to pass an options
argument to addProviderTiles
to add specific options to a provider.
mapbox.tileIds <- list(Satellite='mapbox.satellite',
Terrian='mapbox.mapbox-terrain-v2')
m <- leaflet() %>%
setView(0,0,1) %>%
addLayersControl(
baseGroups = names(mapbox.tileIds),
options = layersControlOptions(collapsed = FALSE))
for (tileId in names(mapbox.tileIds)) {
m <- m %>%
addProviderTiles(providers$MapBox, group = tileId,
options = providerTileOptions(
detectRetina = TRUE,
# id and accessToken are Mapbox specific options
id = mapbox.tileIds[[tileId]] ,
accessToken = Sys.getenv('MAPBOX_ACCESS_TOKEN')
))
}
m