HorizonPosition
The best map-matched position on the horizon. It can be either on-road or off-road. If off-road, it can be either:
The likeliest on-road position on the horizon, but flagged as off-road, if the likeliest position is off-road, but there are also on-road candidates. The user can extract horizon elements to facilitate the decision to join the road.
Or an off-road position with an invalid path ID and an unmatched raw location, if the likeliest position is off-road and there are no on-road candidates on the horizon.
Properties
Geographical location associated with this position.
Identifier of the horizon path to which this position belongs, or 0 if this position does not belong to any path, i.e., it is an off-road position and there are no other on-road position candidates.