Google dispatch

Extension points for plugins

google_dispatch(map, funcName, google_map = stop(paste(funcName,
  "requires a map update object")),
  google_map_update = stop(paste(funcName,
  "does not support map udpate objects")))

invoke_method(map, method, ...)

Arguments

map	a map object, as returned from google_map
funcName	the name of the function that the user called that caused this google_dispatch call; for error message purposes
google_map	an action to be performed if the map is from google_map
google_map_update	an action to be performed if the map is from google_map_update
method	the name of the JavaScript method to invoke
...	unnamed arguments to be passed to the JavaScript method

Value

google_dispatch returns the value of google_map or or an error. invokeMethod returns the map object that was passed in, possibly modified.