public static double GetDistanceToEvent(PolylinePosition currentPosition, PolylinePosition nextEventPosition, IReadOnlyList <RouteSectionDistanceInfo> sections)
{
Debug.Assert(sections.Count > currentPosition.SegmentIndex, "Current section index out of randge sections collection");
Debug.Assert(sections.Count > nextEventPosition.SegmentIndex, "Next event section index out of randge sections collection");
if (!(sections.Count > currentPosition.SegmentIndex && sections.Count > nextEventPosition.SegmentIndex))
{
return(0);
}
RouteSectionDistanceInfo curSection = sections[(int)currentPosition.SegmentIndex];
RouteSectionDistanceInfo eventSection = sections[(int)nextEventPosition.SegmentIndex];
double distance = eventSection.DistanceFromStart + eventSection.Length * nextEventPosition.SegmentPosition - curSection.DistanceFromStart
- curSection.Length * currentPosition.SegmentPosition;
return(distance);
}
public LanesInfo([NotNull] LaneSign laneSign, [NotNull] PolylinePosition currentPosition, [NotNull] IReadOnlyList <RouteSectionDistanceInfo> sections)
{
if (laneSign == null)
{
throw new ArgumentNullException(nameof(laneSign));
}
if (currentPosition == null)
{
throw new ArgumentNullException(nameof(currentPosition));
}
if (sections == null)
{
throw new ArgumentNullException(nameof(sections));
}
Lanes = laneSign.Lanes.Select(l => (ILane) new Lane(l)).ToList();
_lanesPosition = laneSign.Position;
_sections = sections;
double distance = DrivingGuideHelper.GetDistanceToEvent(currentPosition, laneSign.Position, sections);
_distanceBehaviorSubject = new BehaviorSubject <double>(distance);
}
public void ChangeDistance(PolylinePosition currentPosition)
{
double distance = DrivingGuideHelper.GetDistanceToEvent(currentPosition, _lanesPosition, _sections);
_distanceBehaviorSubject.OnNext(distance);
}
public static (DisplayRouteEventType?Event, double?Distances) GetEventsAndDistanceStreams(PolylinePosition polylinePosition,
double speed,
Queue <Event> events,
IReadOnlyList <RouteSectionDistanceInfo> sections)
{
if (!events.Any())
{
return(null, null);
}
Event nextEvent = events.Peek();
double distanceToEvent = DrivingGuideHelper.GetDistanceToEvent(polylinePosition, nextEvent.PolylinePosition, sections);
if (distanceToEvent <= 0.0)
{
events.Dequeue();
return(DisplayRouteEventType.None, null);
}
double timeToEvent = distanceToEvent / speed;
if (timeToEvent < SecondsToEventUpperLimit && distanceToEvent <= MettersToEventUpperLimit && distanceToEvent >= MettersToEventLowerLimit)
{
return(GetDisplayEventType(nextEvent), distanceToEvent);
}
return(null, distanceToEvent);
}