Add Icons to a Map or RgoogleMap Plot

Adds a marker to a plot or map -- an RgoogleMaps map object or Raster* object.

addMarker(longitude, latitude, color = "red", map = NULL, expansion = 1, ...)

Arguments

longitude	vector of longitudes
latitude	vector of latitudes
color	marker color: 'red', 'green', 'yellow', 'orange', or 'blue'. Also includes AQI category colors, specified 'AQI[number]' eg. 'AQI1'
map	optional RgoogleMaps map object or Raster* object
expansion	icon expansion factor. Ignored if width and height are specified.
...	arguments passed on to rasterImage

Examples

if (FALSE) {
library(PWFSLSmoke)

monitor_map(Camp_Fire)

addMarker(
  longitude = -121.437222,
  latitude = 39.810278,
  color = "red",
  expansion = 1
)
}