Showing Tracked End Points Only

Checking this option will display only the first (earliest) and last (latest) tracked location points on the map. This may be desirable if the map becomes overly cluttered with location points but is useful to demonstrate where the track begins and ends. When including the line between successive tracked location points, you still get a sense of the object's path of motion.

with all displayed location points of ocean glider sg523_4:

with only the end points displayed: