Shows a polyline
Shows a polyline

There is a line connecting the:
  - next locations ('nextLine')
  - previous locations ('prevLine')

Note: The 'nextLine' is paler than the 'prevLine'.

jackass0528/google-map-storyboard,googlearchive/google-map-storyboard,jackass0528/google-map-storyboard,googlearchive/google-map-storyboard