private static void GetReferenceData(SrmDocument doc, PeptideDocNode nodePep, TransitionGroupDocNode nodeTranGroup, int resultsIndex, ChromFileInfoId resultsFile,
out PeakMatchData referenceTarget, out PeakMatchData[] referenceMatchData, out DateTime?runTime)
{
referenceTarget = null;
referenceMatchData = new PeakMatchData[0];
runTime = null;
var referenceMatchDataList = new List <PeakMatchData>();
var mzMatchTolerance = (float)doc.Settings.TransitionSettings.Instrument.MzMatchTolerance;
if (!nodeTranGroup.HasResults || resultsIndex < 0 || resultsIndex >= nodeTranGroup.Results.Count)
{
return;
}
var tranGroupChromInfo = nodeTranGroup.GetChromInfo(resultsIndex, resultsFile);
if (tranGroupChromInfo == null)
{
return;
}
var chromSet = doc.Settings.MeasuredResults.Chromatograms[resultsIndex];
if (!doc.Settings.MeasuredResults.TryLoadChromatogram(chromSet, nodePep, nodeTranGroup, mzMatchTolerance, true, out var chromGroupInfos))
{
return;
}
var chromGroupInfo = chromGroupInfos.FirstOrDefault(info => Equals(chromSet.GetFileInfo(tranGroupChromInfo.FileId).FilePath, info.FilePath));
if (chromGroupInfo == null || chromGroupInfo.NumPeaks == 0 || !chromGroupInfo.TimeIntensitiesGroup.HasAnyPoints)
{
return;
}
runTime = chromGroupInfo.RunStartTime;
if (!tranGroupChromInfo.RetentionTime.HasValue || !tranGroupChromInfo.StartRetentionTime.HasValue || !tranGroupChromInfo.EndRetentionTime.HasValue)
{
return;
}
int peakIndex = -1;
foreach (var transition in chromGroupInfo.TransitionPointSets)
{
peakIndex = transition.IndexOfPeak(tranGroupChromInfo.RetentionTime.Value);
if (peakIndex != -1)
{
break;
}
}
// Get time information
float timeMin = chromGroupInfo.TimeIntensitiesGroup.MinTime;
float timeMax = chromGroupInfo.TimeIntensitiesGroup.MaxTime;
float totalArea = chromGroupInfo.TransitionPointSets.Sum(chromInfo => chromInfo.Peaks.Sum(peak => peak.Area));
for (int i = 0; i < chromGroupInfo.NumPeaks; i++)
{
referenceMatchDataList.Add(new PeakMatchData(nodeTranGroup, chromGroupInfo, mzMatchTolerance, i, totalArea, chromSet.OptimizationFunction));
}
// Get ion abundance information
var abundances = new IonAbundances();
foreach (var nodeTran in nodeTranGroup.Transitions)
{
var chromInfoCached = chromGroupInfo.GetTransitionInfo(nodeTran, mzMatchTolerance, chromSet.OptimizationFunction);
if (chromInfoCached == null)
{
continue;
}
var tranChromInfo = nodeTran.Results[resultsIndex].First(r => r.FileIndex == tranGroupChromInfo.FileIndex);
float area;
if (peakIndex != -1)
{
// A peak exists here
var cachedPeak = chromInfoCached.GetPeak(peakIndex);
area = cachedPeak.Area;
if (cachedPeak.RetentionTime.Equals(tranGroupChromInfo.RetentionTime.Value))
{
var range = cachedPeak.EndTime - cachedPeak.StartTime;
referenceMatchDataList[peakIndex].ShiftLeft = (tranChromInfo.StartRetentionTime - cachedPeak.StartTime) / range;
referenceMatchDataList[peakIndex].ShiftRight = (tranChromInfo.EndRetentionTime - cachedPeak.EndTime) / range;
}
}
else
{
area = tranChromInfo.Area;
}
abundances.Add(nodeTran, area);
}
referenceTarget = peakIndex != -1
? referenceMatchDataList[peakIndex]
: new PeakMatchData(abundances, abundances.Sum() / totalArea, tranGroupChromInfo.RetentionTime.Value,
tranGroupChromInfo.StartRetentionTime.Value, tranGroupChromInfo.EndRetentionTime.Value, timeMin, timeMax);
referenceMatchData = referenceMatchDataList.ToArray();
}