Asus R300 User Manual page 76

Route line
The upper part of this screen shows your planned route as a horizontal line. Its leftmost
point is the start of the route, the rightmost one is the final destination, and you can see your
via point flags along the line, spaced in proportion to their distance.
The arrow representing your position will travel from the left to the right, giving you visual
feedback of your journey.
When you reach a via point, it becomes the starting point of the route, the past will be
deleted, the line with all the other via points will be modified instantly, and the arrow jumps
back to the left.