public static RacePassingComparison CompareTo(this IReadOnlyRacePassing passing, IEnumerable <IReadOnlyPassing> reference, TimeSpan precision, TimeSpan gapOffset, decimal delta = 20M)
{
if (passing == null || passing.Passed == null || reference == null)
{
return(null);
}
var nearest = (from r in reference
let passed = r.Passed
where passed != null
let d = Math.Abs(passed.Value - passing.Passed.Value)
where d < delta
orderby d
select new
{
Passed = passed.Value,
r.Time
}).FirstOrDefault();
if (nearest == null)
{
return(null);
}
var factor = nearest.Passed / passing.Passed.Value;
var time = TimeSpan.FromTicks((long)(passing.Time.Ticks * factor));
var gap = time.Truncate(precision) - nearest.Time.Truncate(precision) + gapOffset.Truncate(precision);
return(new RacePassingComparison(passing.RaceId, passing.InstanceName, passing.PresentationSource, passing.When, passing.Time, gap));
}
public override decimal?PassedLength(IDistance distance, int startLane, IEnumerable <IReadOnlyRacePassing> passings, IReadOnlyRacePassing passing,
IVenueDistance source)
{
IDistanceLaneLocations laneLocations;
if (!source.Locations.TryGetValue(0, out laneLocations))
{
return(null);
}
return(passings.PassedLength(passing.PresentationSource, passing.When, laneLocations, source.Segments));
}
public static RacePassingComparison CompareTo(this IReadOnlyRacePassing passing, IEnumerable <IReadOnlyPassing> reference, TimeSpan precision, decimal delta = 20M)
{
return(CompareTo(passing, reference, precision, TimeSpan.Zero, delta));
}
public virtual decimal?Speed(IEnumerable <IReadOnlyRacePassing> passings, IReadOnlyRacePassing passing, decimal passed)
{
return(passings.Speed(passing.PresentationSource, passed, passing.When, 1));
}
