Circle Markers
Circle markers are notably different from pin markers:
- We can control their size
- They do not "stand-up" on the map
- We can more easily change their color
There are many ways to customize circle markers and the design of your leaflet
map. To get started we will focus on the following arguments.
addCircleMarkers(map, lng = NULL, lat = NULL,
radius = 10, color = "#03F", popup = NULL)
The first argument map
takes a leaflet
object, which we will pipe directly into addCircleMarkers()
. lng
and lat
are the coordinates we are mapping. The other arguments can customize the appearance and information presented by each marker.
The ca
data frame and the leaflet
object map
have been loaded for you.
This exercise is part of the course
Interactive Maps with leaflet in R
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Clear the markers from the map
map2 <- map %>%
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