Exercise

Adding a Custom Map Tile

Did any tile names look familiar? If you have worked with the mapping software you may recognize the name ESRI or CartoDB.

We create our first leaflet map using the default OSM map tile. 

leaflet() %>% 
    addTiles()

We will primarily use CartoDB provider tiles, but feel free to try others, like Esri. To add a custom provider tile to our map we will use the addProviderTiles() function. The first argument to addProviderTiles() is your leaflet map, which allows us to pipe leaflet() output directly into addProviderTiles(). The second argument is provider, which accepts any of the map tiles included in the providers list.

Familiarize yourself with the SCRIPT.R and HTML VIEWER tabs. Click back and forth to type your code and view your maps.

Instructions 1/3

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Change addTiles() to addProviderTiles() and set the provider argument to "CartoDB".