Add Icons to a Map or RgoogleMap Plot

Source: R/addIcon.R

Adds an icon to map -- an RgoogleMaps map object. The following icons are available:

  • orangeFlame -- yellow-orange flame

  • redFlame -- orange-red flame

You can use other .png files as icons by passing an absolute path as the icon argument.

addIcon(icon, longitude, latitude, map = NULL, expansion = 0.1, pos = 0)

Arguments

icon

object to be plotted
longitude

vector of longitudes
latitude

vector of latitudes
map

optional RgoogleMaps map object
expansion

icon expansion factor
pos

position of icon relative to location (0=center, 1=bottom, 2=left, 3=top,4=right)

Note

For RgoogleMaps, the expansion will be ~ 0.1 while for basic plots it may need to be much smaller, perhaps ~ 0.001.

Examples

if (FALSE) {
library(PWFSLSmoke)

monitor_map(Camp_Fire)

addIcon(
  "orangeFlame",
  longitude = -121.437222,
  latitude = 39.810278,
  expansion = 0.003
)
}