Introduction The Map Widget Basemaps Markers Popups and Labels Lines and Shapes GeoJSON and TopoJSON Raster Images Shiny Integration Colors Legends Show/Hide Layers Projections More Features Extending Leaflet Detailed Examples

library(leaflet)
# Default
l <- leaflet() %>% addTiles() %>% setView(0,0,2)

Default Graticule

l %>% addGraticule()

Custom Params

l %>% addGraticule(interval = 40, style = list(color='#FF0000', weight=1))

on a toggleable Layer

l %>%
  addGraticule(group="graticule") %>%
  addLayersControl(
    overlayGroups = c("graticule"),
    options = layersControlOptions(collapsed = FALSE)
  )