Near each point, the distance from the previous point is indicated. The
total sum of all segments is known from the popup window in the corner.
To know the sum, the mouse pointer must be placed over the last point of
the polyline. Unlike other points that are red, it is white with blue
border. If the cursor points some other place, the total sum will also
include the distance to the current cursor position. At the same time,
in brackets two numbers are given: the sum of all segments drawn + the
distance to the cursor (if the cursor is over the last drawn point, this
distance is 0m).
When the line is on the map, move the cursor along the line to get the
distance from the starting point to the current cursor position. Cursor
position is marked by a white point (if put the cursor over, it becomes
plus-shaped), and a black font is used to display distance value.
To clean the map and start new measurements, use the 'Reset' button.