/// <summary>
/// Calculates the index range for a <see cref="ChannelDataReader"/>
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="channelIndex">Index of the channel.</param>
/// <param name="index">The index.</param>
private static void CalculateIndexRange(ChannelDataReader reader, ChannelIndexInfo channelIndex, int index)
{
_log.DebugFormat("Calculating channel index range for {0}", channelIndex.Mnemonic);
var range = reader.GetIndexRange(index);
channelIndex.Start = range.Start.GetValueOrDefault(double.NaN);
channelIndex.End = range.End.GetValueOrDefault(double.NaN);
}
/// <summary>
/// Adds index data to a <see cref="ChannelDataReader"/> instance
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="mnemonic">The mnemonic.</param>
/// <param name="unit">The unit.</param>
/// <param name="increasing">if set to <c>true</c> the data is increasing, otherwise false.</param>
/// <param name="isTimeIndex">if set to <c>true</c> the index is time, otherwise false.</param>
/// <returns>The <see cref="ChannelDataReader"/> instance being updated.</returns>
public static ChannelDataReader WithIndex(this ChannelDataReader reader, string mnemonic, string unit, bool increasing, bool isTimeIndex)
{
_log.DebugFormat("Adding channel index to ChannelDataReader for {0}", mnemonic);
var index = new ChannelIndexInfo()
{
Mnemonic = mnemonic,
Increasing = increasing,
IsTimeIndex = isTimeIndex,
Unit = unit
};
reader.Indices.Add(index);
CalculateIndexRange(reader, index, reader.Indices.Count - 1);
return(reader.Sort());
}
