// ----------------------------------------------------------------------
protected virtual void StartEvaluation()
{
if ( periods.Count > 0 )
{
TimeLineMomentCollection timeLineMoments = new TimeLineMomentCollection();
timeLineMoments.AddAll( periods );
if ( timeLineMoments.Count > 1 )
{
int periodCount = 0;
for ( int i = 0; i < timeLineMoments.Count - 1; i++ )
{
ITimeLineMoment start = timeLineMoments[ i ];
ITimeLineMoment end = timeLineMoments[ i + 1 ];
if ( i == 0 )
{
periodCount += start.StartCount;
periodCount -= start.EndCount;
}
ITimePeriod period = new TimeRange( MapPeriodStart( start.Moment ), MapPeriodEnd( end.Moment ) );
if ( !( IgnoreEmptyPeriods && period.IsMoment ) )
{
if ( EvaluatePeriod( period, periodCount ) == false )
{
break;
}
}
periodCount += end.StartCount;
periodCount -= end.EndCount;
}
}
}
}
} // IgnoreEmptyPeriods
// ----------------------------------------------------------------------
protected virtual void StartEvaluation()
{
if (periods.Count > 0)
{
TimeLineMomentCollection timeLineMoments = new TimeLineMomentCollection();
timeLineMoments.AddAll(periods);
if (timeLineMoments.Count > 1)
{
int periodCount = 0;
for (int i = 0; i < timeLineMoments.Count - 1; i++)
{
ITimeLineMoment start = timeLineMoments[i];
ITimeLineMoment end = timeLineMoments[i + 1];
if (i == 0)
{
periodCount += start.StartCount;
periodCount -= start.EndCount;
}
ITimePeriod period = new TimeRange(MapPeriodStart(start.Moment), MapPeriodEnd(end.Moment));
if (!(IgnoreEmptyPeriods && period.IsMoment))
{
if (EvaluatePeriod(period, periodCount) == false)
{
break;
}
}
periodCount += end.StartCount;
periodCount -= end.EndCount;
}
}
}
} // StartEvaluation
} // GetTimeLineMoments
// ----------------------------------------------------------------------
private ITimeLineMomentCollection GetTimeLineMoments(ICollection <ITimePeriod> momentPeriods)
{
TimeLineMomentCollection timeLineMoments = new TimeLineMomentCollection();
if (momentPeriods.Count == 0)
{
return(timeLineMoments);
}
// setup gap set with all start/end points
ITimePeriodCollection intersections = new TimePeriodCollection();
foreach (ITimePeriod momentPeriod in momentPeriods)
{
if (momentPeriod.IsMoment)
{
continue;
}
// calculate the intersection between the periods
ITimeRange intersection = limits.GetIntersection(momentPeriod);
if (intersection == null || intersection.IsMoment)
{
continue;
}
if (periodMapper != null)
{
intersection = new TimeRange(MapPeriodStart(intersection.Start), MapPeriodEnd(intersection.End));
}
intersections.Add(intersection);
}
timeLineMoments.AddAll(intersections);
return(timeLineMoments);
} // GetTimeLineMoments
public void TimeLinePeriodsSample()
{
TimePeriodCollection periods = new TimePeriodCollection();
periods.Add( new IdTimeRange( 1, new DateTime( 2000, 1, 1 ), new DateTime( 2019, 12, 31 ) ) );
periods.Add( new IdTimeRange( 2, new DateTime( 2000, 1, 1 ), new DateTime( 2019, 12, 31 ) ) );
periods.Add( new IdTimeRange( 3, new DateTime( 2000, 1, 1 ), new DateTime( 2009, 12, 31 ) ) );
periods.Add( new IdTimeRange( 3, new DateTime( 2010, 1, 1 ), new DateTime( 2019, 12, 31 ) ) );
periods.Add( new IdTimeRange( 4, new DateTime( 2000, 1, 1 ), new DateTime( 2019, 12, 31 ) ) );
periods.Add( new IdTimeRange( 5, new DateTime( 2000, 1, 1 ), new DateTime( 2014, 12, 31 ) ) );
periods.Add( new IdTimeRange( 5, new DateTime( 2015, 1, 1 ), new DateTime( 2019, 12, 31 ) ) );
foreach ( ITimePeriod period in periods )
{
Console.WriteLine( "Period: " + period );
}
// time line with all period start and end moments
ITimeLineMomentCollection moments = new TimeLineMomentCollection();
moments.AddAll( periods );
DateTime start = periods.Start;
foreach ( ITimeLineMoment moment in moments )
{
if ( moment.EndCount <= 0 ) // search the next period end
{
continue;
}
DateTime end = moment.Moment;
TimeRange timeRange = new TimeRange( start, end );
Console.WriteLine( "Period: {0}", timeRange );
ITimePeriodCollection intersections = periods.IntersectionPeriods( timeRange );
foreach ( ITimePeriod intersection in intersections )
{
Console.WriteLine( " Intersection: {0}", intersection );
}
start = moment.Moment;
}
}
// ----------------------------------------------------------------------
private static DateTime? CalcTargetMoment2( ICollection<ITimePeriod> periods, TimeSpan duration )
{
DateTime? targetMoment = null;
if ( periods.Count > 0 && duration.Ticks > 0 )
{
TimeLineMomentCollection timeLineMoments = new TimeLineMomentCollection();
timeLineMoments.AddAll( periods );
if ( timeLineMoments.Count > 2 )
{
int balance = 0;
for ( int i = 0; i < timeLineMoments.Count - 1; i++ )
{
ITimeLineMoment start = timeLineMoments[ i ];
ITimeLineMoment end = timeLineMoments[ i + 1 ];
if ( i == 0 )
{
balance += start.StartCount;
balance -= start.EndCount;
}
TimeRange slot = new TimeRange( start.Moment, end.Moment );
TimeSpan slotDuration = new TimeSpan( slot.Duration.Ticks * balance );
if ( slotDuration >= duration )
{
targetMoment = start.Moment.Add( new TimeSpan( duration.Ticks / balance ) );
break;
}
duration = duration.Subtract( slotDuration );
balance += end.StartCount;
balance -= end.EndCount;
}
}
}
return targetMoment;
}