In cwthom/TargomoR: Interface to the 'Targomo' API

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  out.width = "100%"
)
library(leaflet)
library(TargomoR)

There are a range of map tiles available through Targomo. They can be added directly to a leaflet map through the addTargomoTiles() function, which wraps around leaflet::addTiles(). Adding these also requires an API key, which is picked up as usual from your TARGOMO_API_KEY environment variable (see setTargomoVariables() for information).

Available Basemaps

The full list of available basemap styles is given by targomoMapStyles():

cat(paste0(targomoMapStyles(), collapse = "\n"))

These should be used with addTargomoTiles(), as in:

leaflet() %>% addTargomoTiles(style = "darkblue-nolabels", api_key = ...)

Demonstration

To see each basemap, change the layer visible on the map below:

l <- leaflet()
for (style in targomoMapStyles()) {
  l <- l %>% addTargomoTiles(style = style, group = style)
}
l %>% addLayersControl(baseGroups = targomoMapStyles(),
                       position = "topright",
                       options = layersControlOptions(collapsed = FALSE)) %>% 
  setView(lat = 51.5, lng = -0.1, zoom = 14)