/// <summary>
/// 获取某个时间段内，不包括数据的时间段集合
/// </summary>
/// <param name="startTime"></param>
/// <param name="endTime"></param>
/// <returns></returns>
public List <Tuple <DateTime, DateTime> > GetNoValueOffsets(DateTime startTime, DateTime endTime)
{
List <Tuple <DateTime, DateTime> > re = new List <Tuple <DateTime, DateTime> >();
DateTime stime = startTime;
List <DateTimeSpan> dtmp = new List <DateTimeSpan>();
DateTimeSpan ddt = new DateTimeSpan()
{
Start = startTime, End = endTime
};
foreach (var vv in mTimeOffsets)
{
DateTimeSpan dts = new DateTimeSpan()
{
Start = vv.Key, End = vv.Value.Item3
};
dts = dts.Cross(ddt);
if (!dts.IsEmpty())
{
dtmp.Add(dts);
}
}
foreach (var vv in dtmp)
{
if (vv.Start > stime)
{
re.Add(new Tuple <DateTime, DateTime>(stime, vv.Start));
}
stime = vv.End;
}
return(re);
}
/// <summary>
///
/// </summary>
/// <param name="target"></param>
/// <returns></returns>
public DateTimeSpan Cross(DateTimeSpan target)
{
DateTime stime = Max(target.Start, this.Start);
DateTime etime = Min(target.End, this.End);
if (etime < stime)
{
return(Empty);
}
else
{
return(new DateTimeSpan()
{
Start = stime, End = etime
});
}
}