private bool CheckAlarm(Channel channel, TrendingDataPoint trendingPoint, AlarmRangeLimitRow rangeLimit)
{
double perUnitValue;
double highLimit = 0.0D;
double lowLimit = 0.0D;
bool highValid = true;
bool lowValid = true;
perUnitValue = channel.PerUnitValue ?? 1.0D;
if (!rangeLimit.IsHighNull())
{
highLimit = Convert.ToBoolean(rangeLimit.PerUnit) ? (rangeLimit.High * perUnitValue) : rangeLimit.High;
highValid = Convert.ToBoolean(rangeLimit.RangeInclusive) ^ (trendingPoint.Value <= highLimit);
}
if (!rangeLimit.IsLowNull())
{
lowLimit = Convert.ToBoolean(rangeLimit.PerUnit) ? (rangeLimit.Low * perUnitValue) : rangeLimit.Low;
lowValid = Convert.ToBoolean(rangeLimit.RangeInclusive) ^ (trendingPoint.Value >= lowLimit);
}
return(!lowValid || !highValid);
}
private Tuple <int, SeriesID, DateTime> GetKey(TrendingDataPoint trendingDataPoint)
{
return(Tuple.Create(trendingDataPoint.ChannelID, trendingDataPoint.SeriesID, trendingDataPoint.Timestamp));
}
