public LifeDatesRet(GDMCustomEvent birthEvent, GDMCustomEvent deathEvent)
{
BirthEvent = birthEvent;
DeathEvent = deathEvent;
}
public UDN GetUDN(string eventSign)
{
GDMCustomEvent evt = FindEvent(eventSign);
return((evt == null) ? UDN.CreateEmpty() : evt.GetUDN());
}
/// <summary>
/// In the historical chronology of the year 0 does not exist.
/// Therefore, the digit 0 in the year value can be used as a sign of lack or error.
/// ChronologicalYear - introduced for the purposes of uniform chronology years in the Gregorian calendar.
/// Is estimated from -4714 BC to 3268 AD.
/// </summary>
/// <returns>chronological year</returns>
public int GetChronologicalYear(string eventSign)
{
GDMCustomEvent evt = FindEvent(eventSign);
return((evt == null) ? 0 : evt.GetChronologicalYear());
}
public abstract GDMCustomEvent AddEvent(GDMCustomEvent evt);