/// <summary>
/// Get and set data from the mass spectrum
/// </summary>
/// <param name="inputRawFile"></param>
private void GetSpectrumData(IRawDataPlus inputRawFile)
{
// Get the first and last scan from the RAW file
int firstScanNumber = inputRawFile.RunHeaderEx.FirstSpectrum;
int lastScanNumber = inputRawFile.RunHeaderEx.LastSpectrum;
string itHeaderParam = "Ion Injection Time (ms)";
// Set up empty variables to populate with mass spectrum data
TICList = new double[lastScanNumber];
ITList = new double[lastScanNumber];
RetentionTimeList = new double[lastScanNumber];
try
{
//get out information from mass spectra for each scan
for (int scan = 0; scan <= (ScanNumList.Length - 1); scan++)
{
int thisScan = ScanNumList[scan];
// get the scan statistics for this scan number
ScanStatistics scanStatistic = inputRawFile.GetScanStatsForScanNumber(thisScan);
//get the TIC
TICList[scan] = scanStatistic.TIC;
//get retention time
RetentionTimeList[scan] = inputRawFile.RetentionTimeFromScanNumber(thisScan);
ITList[scan] = GetScanExtraDouble(inputRawFile, thisScan, itHeaderParam);
//TODO: get out noise for peaks
}
}
catch (Exception ex)
{
Console.Write("Error in accessing spectrum data: " + ex);
}
}
private static void WritePScans(string fileName,
IRawDataPlus raw,
List <PScan> scans)
{
var enumerator = raw.GetFilteredScanEnumerator(" ");
foreach (var scanNumber in enumerator) // note in my tests serial is faster than Parallel.Foreach() (this involves disk access, so it makes sense)
{
//trailer iinformation is extracted via index
var trailers = raw.GetTrailerExtraValues(scanNumber);
var trailerLabels = raw.GetTrailerExtraInformation(scanNumber);
object chargeState = 0;
for (int i = 0; i < trailerLabels.Labels.Length; i++)
{
if (trailerLabels.Labels[i] == "Charge State:")
{
chargeState = raw.GetTrailerExtraValue(scanNumber, i);
break;
}
}
var scanFilter = raw.GetFilterForScanNumber(scanNumber);
var scanStats = raw.GetScanStatsForScanNumber(scanNumber);
CentroidStream centroidStream = new CentroidStream();
//check for FT mass analyzer data
if (scanFilter.MassAnalyzer == MassAnalyzerType.MassAnalyzerFTMS)
{
centroidStream = raw.GetCentroidStream(scanNumber, false);
}
//check for IT mass analyzer data
if (scanFilter.MassAnalyzer == MassAnalyzerType.MassAnalyzerITMS)
{
var scanData = raw.GetSimplifiedScan(scanNumber);
centroidStream.Masses = scanData.Masses;
centroidStream.Intensities = scanData.Intensities;
}
var msOrder = raw.GetScanEventForScanNumber(scanNumber).MSOrder;
if (msOrder == MSOrderType.Ms)
{
var pscan = GetPScan(scanStats, centroidStream, 1, fileName, Convert.ToInt32(chargeState));
scans.Add(pscan);
}
if (msOrder == MSOrderType.Ms2)
{
var precursorMz = raw.GetScanEventForScanNumber(scanNumber).GetReaction(0).PrecursorMass;
var pscan = GetPScan(scanStats, centroidStream, 2, fileName, precursorMz, Convert.ToInt32(chargeState));
scans.Add(pscan);
}
var t = raw.GetTrailerExtraValues(scanNumber);
}
WriteScans(scans, fileName);
}
public static void GetIndex(this IRawDataPlus rawFile)
{
int firstScanNumber = rawFile.RunHeaderEx.FirstSpectrum;
int lastScanNumber = rawFile.RunHeaderEx.LastSpectrum;
int idxCharge = rawFile.GetIndexOfPattern();
int idxMasterScan = rawFile.GetIndexOfPattern("Master Scan Number:");
int idxDependencyType = rawFile.GetIndexOfPattern("Dependency Type:");
double charge, precursorMass;
int masterScan, dependencyType;
Console.WriteLine("scan;scanType;rtinseconds;precursorMass;MSOrder;charge;masterScan;dependencyType");
for (int scanNumber = firstScanNumber; scanNumber < lastScanNumber; scanNumber++)
{
var scanTrailer = rawFile.GetTrailerExtraInformation(scanNumber);
var scanStatistics = rawFile.GetScanStatsForScanNumber(scanNumber);
var scanEvent = rawFile.GetScanEventForScanNumber(scanNumber);
var scanFilter = rawFile.GetFilterForScanNumber(scanNumber);
try{
var reaction0 = scanEvent.GetReaction(0);
precursorMass = reaction0.PrecursorMass;
} catch {
precursorMass = -1;
}
try{
charge = int.Parse(scanTrailer.Values.ToArray()[idxCharge]);
} catch {
charge = -1;
}
try{
masterScan = int.Parse(scanTrailer.Values.ToArray()[idxMasterScan]);
} catch {
masterScan = -1;
}
try{
dependencyType = int.Parse(scanTrailer.Values.ToArray()[idxDependencyType]);
} catch {
dependencyType = -1;
}
Console.WriteLine("{0};{1};{2};{3};{4};{5};{6};{7}", scanNumber,
scanStatistics.ScanType.ToString(),
Math.Round(scanStatistics.StartTime * 60 * 1000) / 1000,
precursorMass,
scanFilter.MSOrder.ToString(),
charge, masterScan, dependencyType);
}
}
/// <summary>
/// implements
/// https://github.com/fgcz/rawrr/issues/43
/// </summary>
/// <param name="rawFile"></param>
/// <param name="filename"></param>
/// <param name="L"></param>
public static void WriteCentroidSpectrumAsRcode(this IRawDataPlus rawFile, string filename, List <int> L)
{
int count = 1;
var trailerFields = rawFile.GetTrailerExtraHeaderInformation();
int indexCharge = rawFile.GetIndexOfPattern("Charge State");
using (System.IO.StreamWriter file =
new System.IO.StreamWriter(filename))
{
foreach (int scanNumber in L)
{
var scan = Scan.FromFile(rawFile, scanNumber);
var scanStatistics = rawFile.GetScanStatsForScanNumber(scanNumber);
var centroidStream = rawFile.GetCentroidStream(scanNumber, false);
var scanEvent = rawFile.GetScanEventForScanNumber(scanNumber);
var scanTrailer = rawFile.GetTrailerExtraInformation(scanNumber);
file.WriteLine("e$Spectrum[[{0}]] <- list(", count++);
file.WriteLine("\tscan = {0},", scanNumber);
file.WriteLine("\trtinseconds = {0},", Math.Round(scanStatistics.StartTime * 60 * 1000) / 1000);
if (indexCharge > 0)
{
file.WriteLine("\tcharge = {0},", int.Parse(scanTrailer.Values.ToArray()[indexCharge]));
}
else
{
file.WriteLine("\tcharge = NA,");
}
try{
var reaction0 = scanEvent.GetReaction(0);
file.WriteLine("\tpepmass = {0},", reaction0.PrecursorMass);
}catch {
file.WriteLine("\tpepmass = NA,");
}
if (scanStatistics.IsCentroidScan && centroidStream.Length > 0)
{
file.WriteLine("\tmZ = c(" + string.Join(", ", centroidStream.Masses) + "),");
file.WriteLine("\tintensity = c(" + string.Join(", ", centroidStream.Intensities) + ")");
}
else
{
file.WriteLine("\tmZ = NULL,\n\tintensity = NULL");
}
file.WriteLine("\t)");
}
}
}
public static void WriteSpectrumAsRcode0(this IRawDataPlus rawFile, string filename)
{
int idxCharge = rawFile.GetIndexOfPattern();
int firstScanNumber = rawFile.RunHeaderEx.FirstSpectrum;
int lastScanNumber = rawFile.RunHeaderEx.LastSpectrum;
int charge = -1;
double pc = -1;
using (System.IO.StreamWriter file =
new System.IO.StreamWriter(filename))
{
for (int scanNumber = firstScanNumber; scanNumber < lastScanNumber; scanNumber++)
{
var scanTrailer = rawFile.GetTrailerExtraInformation(scanNumber);
var scanStatistics = rawFile.GetScanStatsForScanNumber(scanNumber);
var scanEvent = rawFile.GetScanEventForScanNumber(scanNumber);
var scanFilter = rawFile.GetFilterForScanNumber(scanNumber);
try{
var reaction0 = scanEvent.GetReaction(0);
pc = reaction0.PrecursorMass;
}
catch {
pc = -1;
}
try{
charge = int.Parse(scanTrailer.Values.ToArray()[idxCharge]);
}
catch {
charge = -1;
}
file.WriteLine("e$Spectrum[[{0}]] <- list(", scanNumber);
file.WriteLine("\tscan = {0};", scanNumber);
file.WriteLine("\tscanType = \"{0}\";", scanStatistics.ScanType.ToString());
file.WriteLine("\trtinseconds = {0};", Math.Round(scanStatistics.StartTime * 60 * 1000) / 1000);
file.WriteLine("\tprecursorMass = {0};", pc);
file.WriteLine("\tMSOrder = '{0}';", scanFilter.MSOrder.ToString());
file.WriteLine("\tcharge = {0}", charge);
file.WriteLine(")");
}
}
}
private static MzSpectrum GetSpectrum(IRawDataPlus rawFile, IFilteringParams filterParams, int scanNumber, string scanFilter, int scanOrder)
{
MzSpectrum spectrum;
double[] xArray;
double[] yArray;
if (string.IsNullOrEmpty(scanFilter))
{
return(new MzSpectrum(new double[0], new double[0], false));
}
var centroidStream = rawFile.GetCentroidStream(scanNumber, false);
// PreferredMasses should be used if centroidStream data is null; it's probably ITMS data
if (centroidStream.Masses == null || centroidStream.Intensities == null)
{
var scan = Scan.FromFile(rawFile, scanNumber);
var mzs = scan.PreferredMasses;
xArray = scan.PreferredMasses;
yArray = scan.PreferredIntensities;
if (xArray == null || yArray == null)
{
throw new MzLibException("Could not centroid data from scan " + scanNumber);
}
}
else
{
xArray = centroidStream.Masses;
yArray = centroidStream.Intensities;
}
if (filterParams != null &&
xArray.Length > 0 &&
(filterParams.MinimumAllowedIntensityRatioToBasePeakM.HasValue || filterParams.NumberOfPeaksToKeepPerWindow.HasValue) &&
((filterParams.ApplyTrimmingToMs1 && scanOrder == 1) || (filterParams.ApplyTrimmingToMsMs && scanOrder > 1)))
{
var count = xArray.Length;
var mzArray = new double[count];
var intensityArray = new double[count];
Array.Copy(xArray, mzArray, count);
Array.Copy(yArray, intensityArray, count);
var scanStats = rawFile.GetScanStatsForScanNumber(scanNumber);
double scanRangeHigh = scanStats.HighMass;
double scanRangeLow = scanStats.LowMass;
WindowModeHelper(ref intensityArray, ref mzArray, filterParams, scanRangeLow, scanRangeHigh);
Array.Sort(mzArray, intensityArray);
spectrum = new MzSpectrum(mzArray, intensityArray, false);
}
else
{
spectrum = new MzSpectrum(xArray, yArray, false);
}
return(spectrum);
}
public static MsDataScan GetOneBasedScan(IRawDataPlus rawFile, IFilteringParams filteringParams, int scanNumber)
{
var filter = rawFile.GetFilterForScanNumber(scanNumber);
string scanFilterString = filter.ToString();
int msOrder = (int)filter.MSOrder;
if (msOrder < 1 || msOrder > 10)
{
throw new MzLibException("Unknown MS Order (" + msOrder + ") for scan number " + scanNumber);
}
string nativeId = "controllerType=0 controllerNumber=1 scan=" + scanNumber;
MzSpectrum spectrum = GetSpectrum(rawFile, filteringParams, scanNumber, scanFilterString, msOrder);
var scanStats = rawFile.GetScanStatsForScanNumber(scanNumber);
double scanRangeHigh = scanStats.HighMass;
double scanRangeLow = scanStats.LowMass;
MzRange scanWindowRange = new MzRange(scanRangeLow, scanRangeHigh);
double? ionInjectionTime = null;
double? precursorSelectedMonoisotopicIonMz = null;
int? selectedIonChargeState = null;
double? ms2IsolationWidth = null;
int? precursorScanNumber = null;
double? isolationMz = null;
string HcdEnergy = null;
ActivationType activationType = ActivationType.Any; // thermo enum
DissociationType dissociationType = DissociationType.Unknown; // mzLib enum
var trailer = rawFile.GetTrailerExtraInformation(scanNumber);
string[] labels = trailer.Labels;
string[] values = trailer.Values;
for (int i = 0; i < trailer.Labels.Length; i++)
{
if (labels[i].StartsWith("Ion Injection Time (ms)", StringComparison.Ordinal))
{
ionInjectionTime = double.Parse(values[i], CultureInfo.InvariantCulture) == 0 ?
(double?)null :
double.Parse(values[i], CultureInfo.InvariantCulture);
}
if (msOrder < 2)
{
continue;
}
if (labels[i].StartsWith("MS" + msOrder + " Isolation Width", StringComparison.Ordinal))
{
ms2IsolationWidth = double.Parse(values[i], CultureInfo.InvariantCulture) == 0 ?
(double?)null :
double.Parse(values[i], CultureInfo.InvariantCulture);
}
if (labels[i].StartsWith("Monoisotopic M/Z", StringComparison.Ordinal))
{
precursorSelectedMonoisotopicIonMz = double.Parse(values[i], CultureInfo.InvariantCulture) == 0 ?
(double?)null :
double.Parse(values[i], CultureInfo.InvariantCulture);
}
if (labels[i].StartsWith("Charge State", StringComparison.Ordinal))
{
selectedIonChargeState = int.Parse(values[i], CultureInfo.InvariantCulture) == 0 ?
(int?)null :
int.Parse(values[i], CultureInfo.InvariantCulture);
}
if (labels[i].StartsWith("Master Scan Number", StringComparison.Ordinal) ||
labels[i].StartsWith("Master Index", StringComparison.Ordinal))
{
precursorScanNumber = int.Parse(values[i], CultureInfo.InvariantCulture) <= 1 ?
(int?)null :
int.Parse(values[i], CultureInfo.InvariantCulture);
}
if (labels[i].StartsWith("HCD Energy:", StringComparison.Ordinal))
{
HcdEnergy = values[i];
}
}
if (msOrder > 1)
{
var scanEvent = rawFile.GetScanEventForScanNumber(scanNumber);
var reaction = scanEvent.GetReaction(0);
isolationMz = reaction.PrecursorMass;
activationType = reaction.ActivationType;
dissociationType = GetDissociationType(activationType);
// thermo does not have an enum value for ETHcD, so this needs to be detected from the scan filter
if (scanFilterString.Contains("@etd", StringComparison.OrdinalIgnoreCase) &&
scanFilterString.Contains("@hcd", StringComparison.OrdinalIgnoreCase))
{
dissociationType = DissociationType.EThcD;
}
if (ms2IsolationWidth == null)
{
ms2IsolationWidth = reaction.IsolationWidth;
}
if (precursorScanNumber == null)
{
// we weren't able to get the precursor scan number, so we'll have to guess;
// loop back to find precursor scan
// (assumed to be the first scan before this scan with an MS order of this scan's MS order - 1)
// e.g., if this is an MS2 scan, find the first MS1 scan before this and assume that's the precursor scan
for (int i = scanNumber; i >= 1; i--)
{
var possiblePrecursorScanFilter = rawFile.GetFilterForScanNumber(i);
int order = (int)possiblePrecursorScanFilter.MSOrder;
if (order == msOrder - 1)
{
precursorScanNumber = i;
break;
}
}
if (precursorScanNumber == null)
{
throw new MzLibException("Could not get precursor for scan #" + scanNumber);
}
}
}
// at this point, we have the m/z value of the species that got fragmented, from the scan header
// this section of the code finds that peak in the spectrum (it's actual intensity and centroided m/z values)
// the intention is to remove any rounding issues caused by what is in the scan header and what is observable in the spectrum
double?selectedIonIntensity = null;
if (isolationMz.HasValue)
{
if (spectrum.Size != 0)
{
int closest = spectrum.GetClosestPeakIndex(isolationMz.Value);
double mz = spectrum.XArray[closest];
double intensity = spectrum.YArray[closest];
if (Math.Abs(mz - isolationMz.Value) < 0.1)
{
selectedIonIntensity = intensity;
isolationMz = mz;
}
}
}
return(new MsDataScan(
massSpectrum: spectrum,
oneBasedScanNumber: scanNumber,
msnOrder: msOrder,
isCentroid: true,
polarity: GetPolarity(filter.Polarity),
retentionTime: rawFile.RetentionTimeFromScanNumber(scanNumber),
scanWindowRange: scanWindowRange,
scanFilter: scanFilterString,
mzAnalyzer: GetMassAnalyzerType(filter.MassAnalyzer),
totalIonCurrent: spectrum.SumOfAllY,
injectionTime: ionInjectionTime,
noiseData: null, //TODO: implement reading noise data. it's unused right now, so it's just left as null
nativeId: nativeId,
selectedIonMz: isolationMz,
selectedIonChargeStateGuess: selectedIonChargeState,
selectedIonIntensity: selectedIonIntensity,
isolationMZ: isolationMz,
isolationWidth: ms2IsolationWidth,
dissociationType: dissociationType,
oneBasedPrecursorScanNumber: precursorScanNumber,
selectedIonMonoisotopicGuessMz: precursorSelectedMonoisotopicIonMz,
hcdEnergy: HcdEnergy));
}
/// <inheritdoc />
public override void Write(IRawDataPlus rawFile, int firstScanNumber, int lastScanNumber)
{
ConfigureWriter(".mgf");
using (Writer)
{
Log.Info("Processing " + (lastScanNumber - firstScanNumber + 1) + " scans");
var lastScanProgress = 0;
for (var scanNumber = firstScanNumber; scanNumber <= lastScanNumber; scanNumber++)
{
if (!ParseInput.Verbose)
{
var scanProgress = (int)((double)scanNumber / (lastScanNumber - firstScanNumber + 1) * 100);
if (scanProgress % ProgressPercentageStep == 0)
{
if (scanProgress != lastScanProgress)
{
Console.Write("" + scanProgress + "% ");
lastScanProgress = scanProgress;
}
}
}
// Get each scan from the RAW file
var scan = Scan.FromFile(rawFile, scanNumber);
// Check to see if the RAW file contains label (high-res) data and if it is present
// then look for any data that is out of order
var time = rawFile.RetentionTimeFromScanNumber(scanNumber);
// Get the scan filter for this scan number
var scanFilter = rawFile.GetFilterForScanNumber(scanNumber);
// Get the scan event for this scan number
var scanEvent = rawFile.GetScanEventForScanNumber(scanNumber);
IReaction reaction = null;
switch (scanFilter.MSOrder)
{
case MSOrderType.Ms:
// Keep track of scan number for precursor reference
_precursorScanNumber = scanNumber;
break;
case MSOrderType.Ms2:
try
{
reaction = scanEvent.GetReaction(0);
}
catch (ArgumentOutOfRangeException exception)
{
Log.Warn("No reaction found for scan " + scanNumber);
}
goto default;
case MSOrderType.Ms3:
{
try
{
reaction = scanEvent.GetReaction(1);
}
catch (ArgumentOutOfRangeException)
{
Log.Warn("No reaction found for scan " + scanNumber);
}
goto default;
}
default:
Writer.WriteLine("BEGIN IONS");
Writer.WriteLine($"TITLE={ConstructSpectrumTitle(scanNumber)}");
Writer.WriteLine($"SCANS={scanNumber}");
Writer.WriteLine(
$"RTINSECONDS={(time * 60).ToString(CultureInfo.InvariantCulture)}");
// trailer extra data list
var trailerData = rawFile.GetTrailerExtraInformation(scanNumber);
int? charge = null;
double?monoisotopicMz = null;
double?isolationWidth = null;
for (var i = 0; i < trailerData.Length; i++)
{
if (trailerData.Labels[i] == "Charge State:")
{
if (Convert.ToInt32(trailerData.Values[i]) > 0)
{
charge = Convert.ToInt32(trailerData.Values[i]);
}
}
if (trailerData.Labels[i] == "Monoisotopic M/Z:")
{
monoisotopicMz = double.Parse(trailerData.Values[i], NumberStyles.Any,
CultureInfo.CurrentCulture);
}
if (trailerData.Labels[i] == "MS" + (int)scanFilter.MSOrder + " Isolation Width:")
{
isolationWidth = double.Parse(trailerData.Values[i], NumberStyles.Any,
CultureInfo.CurrentCulture);
}
}
if (reaction != null)
{
var selectedIonMz =
CalculateSelectedIonMz(reaction, monoisotopicMz, isolationWidth);
Writer.WriteLine("PEPMASS=" +
selectedIonMz.ToString(CultureInfo.InvariantCulture));
}
// charge
if (charge != null)
{
// Scan polarity
var polarity = PositivePolarity;
if (scanFilter.Polarity == PolarityType.Negative)
{
polarity = NegativePolarity;
}
Writer.WriteLine($"CHARGE={charge}{polarity}");
}
// write the filter string
//Writer.WriteLine($"SCANEVENT={scanEvent.ToString()}");
// Check if the scan has a centroid stream
if (scan.HasCentroidStream && (scanEvent.ScanData == ScanDataType.Centroid ||
(scanEvent.ScanData == ScanDataType.Profile &&
!ParseInput.NoPeakPicking)))
{
var centroidStream = rawFile.GetCentroidStream(scanNumber, false);
if (scan.CentroidScan.Length > 0)
{
for (var i = 0; i < centroidStream.Length; i++)
{
Writer.WriteLine(
centroidStream.Masses[i].ToString("0.0000000",
CultureInfo.InvariantCulture)
+ " "
+ centroidStream.Intensities[i].ToString("0.0000000000",
CultureInfo.InvariantCulture));
}
}
}
// Otherwise take the profile data
else
{
// Get the scan statistics from the RAW file for this scan number
var scanStatistics = rawFile.GetScanStatsForScanNumber(scanNumber);
// Get the segmented (low res and profile) scan data
var segmentedScan =
rawFile.GetSegmentedScanFromScanNumber(scanNumber, scanStatistics);
for (var i = 0; i < segmentedScan.Positions.Length; i++)
{
Writer.WriteLine(
segmentedScan.Positions[i].ToString("0.0000000",
CultureInfo.InvariantCulture)
+ " "
+ segmentedScan.Intensities[i].ToString("0.0000000000",
CultureInfo.InvariantCulture));
}
}
Writer.WriteLine("END IONS");
Log.Debug("Spectrum written to file -- SCAN " + scanNumber);
break;
}
}
if (!ParseInput.Verbose)
{
Console.WriteLine();
}
}
}
/// <summary>
/// Construct a spectrum element for the given scan
/// </summary>
/// <param name="scanNumber">the scan number</param>
/// <returns>The SpectrumType object</returns>
private SpectrumType ConstructSpectrum(int scanNumber)
{
// Get each scan from the RAW file
var scan = Scan.FromFile(_rawFile, scanNumber);
// Get the scan filter for this scan number
var scanFilter = _rawFile.GetFilterForScanNumber(scanNumber);
// Get the scan event for this scan number
var scanEvent = _rawFile.GetScanEventForScanNumber(scanNumber);
var spectrum = new SpectrumType
{
id = ConstructSpectrumTitle(scanNumber),
defaultArrayLength = 0
};
// Add the ionization type if necessary
if (!_ionizationTypes.ContainsKey(scanFilter.IonizationMode))
{
_ionizationTypes.Add(scanFilter.IonizationMode,
OntologyMapping.IonizationTypes[scanFilter.IonizationMode]);
}
// Add the mass analyzer if necessary
if (!_massAnalyzers.ContainsKey(scanFilter.MassAnalyzer) &&
OntologyMapping.MassAnalyzerTypes.ContainsKey(scanFilter.MassAnalyzer))
{
_massAnalyzers.Add(scanFilter.MassAnalyzer, "IC" + (_massAnalyzers.Count + 1));
}
// Keep the CV params in a list and convert to array afterwards
var spectrumCvParams = new List <CVParamType>
{
new CVParamType
{
name = "ms level",
accession = "MS:1000511",
value = ((int)scanFilter.MSOrder).ToString(CultureInfo.InvariantCulture),
cvRef = "MS"
}
};
// Trailer extra data list
var trailerData = _rawFile.GetTrailerExtraInformation(scanNumber);
int? charge = null;
double?monoisotopicMass = null;
for (var i = 0; i < trailerData.Length; i++)
{
if (trailerData.Labels[i] == "Charge State:")
{
if (Convert.ToInt32(trailerData.Values[i]) > 0)
{
charge = Convert.ToInt32(trailerData.Values[i]);
}
}
if (trailerData.Labels[i] == "Monoisotopic M/Z:")
{
monoisotopicMass = double.Parse(trailerData.Values[i]);
}
}
// Construct and set the scan list element of the spectrum
var scanListType = ConstructScanList(scanNumber, scan, scanFilter, scanEvent, monoisotopicMass);
spectrum.scanList = scanListType;
switch (scanFilter.MSOrder)
{
case MSOrderType.Ms:
spectrumCvParams.Add(new CVParamType
{
accession = "MS:1000579",
cvRef = "MS",
name = "MS1 spectrum",
value = ""
});
// Keep track of scan number for precursor reference
_precursorScanNumber = scanNumber;
break;
case MSOrderType.Ms2:
spectrumCvParams.Add(new CVParamType
{
accession = "MS:1000580",
cvRef = "MS",
name = "MSn spectrum",
value = ""
});
// Construct and set the precursor list element of the spectrum
var precursorListType = ConstructPrecursorList(scanEvent, charge);
spectrum.precursorList = precursorListType;
break;
case MSOrderType.Ng:
break;
case MSOrderType.Nl:
break;
case MSOrderType.Par:
break;
case MSOrderType.Any:
break;
case MSOrderType.Ms3:
break;
case MSOrderType.Ms4:
break;
case MSOrderType.Ms5:
break;
case MSOrderType.Ms6:
break;
case MSOrderType.Ms7:
break;
case MSOrderType.Ms8:
break;
case MSOrderType.Ms9:
break;
case MSOrderType.Ms10:
break;
default:
throw new ArgumentOutOfRangeException();
}
// Scan polarity
var polarityType = scanFilter.Polarity;
switch (polarityType)
{
case PolarityType.Positive:
spectrumCvParams.Add(new CVParamType
{
accession = "MS:1000130",
cvRef = "MS",
name = "positive scan",
value = ""
});
break;
case PolarityType.Negative:
spectrumCvParams.Add(new CVParamType
{
accession = "MS:1000129",
cvRef = "MS",
name = "negative scan",
value = ""
});
break;
case PolarityType.Any:
break;
default:
throw new ArgumentOutOfRangeException();
}
// Total ion current
spectrumCvParams.Add(new CVParamType
{
name = "total ion current",
accession = "MS:1000285",
value = scan.ScanStatistics.TIC.ToString(CultureInfo.InvariantCulture),
cvRef = "MS"
});
double?basePeakMass = null;
double?basePeakIntensity = null;
double?lowestObservedMz = null;
double?highestObservedMz = null;
double[] masses = null;
double[] intensities = null;
if (scan.HasCentroidStream)
{
var centroidStream = _rawFile.GetCentroidStream(scanNumber, false);
if (scan.CentroidScan.Length > 0)
{
basePeakMass = centroidStream.BasePeakMass;
basePeakIntensity = centroidStream.BasePeakIntensity;
lowestObservedMz = centroidStream.Masses[0];
highestObservedMz = centroidStream.Masses[centroidStream.Masses.Length - 1];
masses = centroidStream.Masses;
intensities = centroidStream.Intensities;
// Note that although the scan data type is profile,
// centroid data might be available
spectrumCvParams.Add(new CVParamType
{
accession = "MS:1000127",
cvRef = "MS",
name = "centroid spectrum",
value = ""
});
}
}
else
{
// Get the scan statistics from the RAW file for this scan number
var scanStatistics = _rawFile.GetScanStatsForScanNumber(scanNumber);
basePeakMass = scanStatistics.BasePeakMass;
basePeakIntensity = scanStatistics.BasePeakIntensity;
// Get the segmented (low res and profile) scan data
var segmentedScan = _rawFile.GetSegmentedScanFromScanNumber(scanNumber, scanStatistics);
if (segmentedScan.Positions.Length > 0)
{
lowestObservedMz = segmentedScan.Positions[0];
highestObservedMz = segmentedScan.Positions[segmentedScan.Positions.Length - 1];
masses = segmentedScan.Positions;
intensities = segmentedScan.Intensities;
spectrumCvParams.Add(new CVParamType
{
accession = "MS:1000128",
cvRef = "MS",
name = "profile spectrum",
value = ""
});
}
}
// Base peak m/z
if (basePeakMass != null)
{
spectrumCvParams.Add(new CVParamType
{
name = "base peak m/z",
accession = "MS:1000504",
value = basePeakMass.ToString(),
unitCvRef = "MS",
unitName = "m/z",
unitAccession = "MS:1000040",
cvRef = "MS"
});
}
// Base peak intensity
if (basePeakMass != null)
{
spectrumCvParams.Add(new CVParamType
{
name = "base peak intensity",
accession = "MS:1000505",
value = basePeakIntensity.ToString(),
unitCvRef = "MS",
unitName = "number of detector counts",
unitAccession = "MS:1000131",
cvRef = "MS"
});
}
// Lowest observed mz
if (lowestObservedMz != null)
{
spectrumCvParams.Add(new CVParamType
{
name = "lowest observed m/z",
accession = "MS:1000528",
value = lowestObservedMz.ToString(),
unitCvRef = "MS",
unitAccession = "MS:1000040",
unitName = "m/z",
cvRef = "MS"
});
}
// Highest observed mz
if (highestObservedMz != null)
{
spectrumCvParams.Add(new CVParamType
{
name = "highest observed m/z",
accession = "MS:1000527",
value = highestObservedMz.ToString(),
unitAccession = "MS:1000040",
unitName = "m/z",
unitCvRef = "MS",
cvRef = "MS"
});
}
// Add the CV params to the spectrum
spectrum.cvParam = spectrumCvParams.ToArray();
// Binary data array list
var binaryData = new List <BinaryDataArrayType>();
// M/Z Data
if (!masses.IsNullOrEmpty())
{
// Set the spectrum default array length
spectrum.defaultArrayLength = masses.Length;
var massesBinaryData =
new BinaryDataArrayType
{
binary = GetZLib64BitArray(masses)
};
massesBinaryData.encodedLength =
(4 * Math.Ceiling((double)massesBinaryData
.binary.Length / 3)).ToString(CultureInfo.InvariantCulture);
massesBinaryData.cvParam =
new CVParamType[3];
massesBinaryData.cvParam[0] =
new CVParamType
{
accession = "MS:1000514",
name = "m/z array",
cvRef = "MS",
unitName = "m/z",
value = "",
unitCvRef = "MS",
unitAccession = "MS:1000040"
};
massesBinaryData.cvParam[1] =
new CVParamType
{
accession = "MS:1000523",
name = "64-bit float",
cvRef = "MS",
value = ""
};
massesBinaryData.cvParam[2] =
new CVParamType
{
accession = "MS:1000574",
name = "zlib compression",
cvRef = "MS",
value = ""
};
binaryData.Add(massesBinaryData);
}
// Intensity Data
if (!intensities.IsNullOrEmpty())
{
// Set the spectrum default array length if necessary
if (spectrum.defaultArrayLength == 0)
{
spectrum.defaultArrayLength = masses.Length;
}
var intensitiesBinaryData =
new BinaryDataArrayType
{
binary = GetZLib64BitArray(intensities)
};
intensitiesBinaryData.encodedLength =
(4 * Math.Ceiling((double)intensitiesBinaryData
.binary.Length / 3)).ToString(CultureInfo.InvariantCulture);
intensitiesBinaryData.cvParam =
new CVParamType[3];
intensitiesBinaryData.cvParam[0] =
new CVParamType
{
accession = "MS:1000515",
name = "intensity array",
cvRef = "MS",
unitCvRef = "MS",
unitAccession = "MS:1000131",
unitName = "number of counts",
value = ""
};
intensitiesBinaryData.cvParam[1] =
new CVParamType
{
accession = "MS:1000523",
name = "64-bit float",
cvRef = "MS",
value = ""
};
intensitiesBinaryData.cvParam[2] =
new CVParamType
{
accession = "MS:1000574",
name = "zlib compression",
cvRef = "MS",
value = ""
};
binaryData.Add(intensitiesBinaryData);
}
if (!binaryData.IsNullOrEmpty())
{
spectrum.binaryDataArrayList = new BinaryDataArrayListType
{
count = binaryData.Count.ToString(),
binaryDataArray = binaryData.ToArray()
};
}
return(spectrum);
}
/// <inheritdoc />
public override void Write(IRawDataPlus rawFile, int firstScanNumber, int lastScanNumber)
{
ConfigureWriter(".mgf");
using (Writer)
{
for (var scanNumber = firstScanNumber; scanNumber <= lastScanNumber; scanNumber++)
{
// Get each scan from the RAW file
var scan = Scan.FromFile(rawFile, scanNumber);
// Check to see if the RAW file contains label (high-res) data and if it is present
// then look for any data that is out of order
var time = rawFile.RetentionTimeFromScanNumber(scanNumber);
// Get the scan filter for this scan number
var scanFilter = rawFile.GetFilterForScanNumber(scanNumber);
// Get the scan event for this scan number
var scanEvent = rawFile.GetScanEventForScanNumber(scanNumber);
// Only consider MS2 spectra
if (scanFilter.MSOrder == MSOrderType.Ms2)
{
if (scanEvent.ScanData == ScanDataType.Centroid ||
(scanEvent.ScanData == ScanDataType.Profile && !ParseInput.ExcludeProfileData))
{
Writer.WriteLine("BEGIN IONS");
Writer.WriteLine($"TITLE={ConstructSpectrumTitle(scanNumber)}");
Writer.WriteLine($"SCAN={scanNumber}");
Writer.WriteLine($"RTINSECONDS={time * 60}");
// Get the reaction information for the first precursor
try
{
var reaction = scanEvent.GetReaction(0);
var precursorMass = reaction.PrecursorMass;
Writer.WriteLine($"PEPMASS={precursorMass:F7}");
}
catch (ArgumentOutOfRangeException exception)
{
Log.Warn("No reaction found for scan " + scanNumber);
}
// trailer extra data list
var trailerData = rawFile.GetTrailerExtraInformation(scanNumber);
for (var i = 0; i < trailerData.Length; i++)
{
if (trailerData.Labels[i] == "Charge State:")
{
if (Convert.ToInt32(trailerData.Values[i]) > 0)
{
Writer.WriteLine($"CHARGE={trailerData.Values[i]}+");
}
}
}
// Check if the scan has a centroid stream
if (scan.HasCentroidStream)
{
var centroidStream = rawFile.GetCentroidStream(scanNumber, false);
if (scan.CentroidScan.Length > 0)
{
for (var i = 0; i < centroidStream.Length; i++)
{
Writer.WriteLine(
$"{centroidStream.Masses[i]:F7} {centroidStream.Intensities[i]:F10}");
}
}
}
// Otherwise take the profile data
else
{
// Get the scan statistics from the RAW file for this scan number
var scanStatistics = rawFile.GetScanStatsForScanNumber(scanNumber);
// Get the segmented (low res and profile) scan data
var segmentedScan = rawFile.GetSegmentedScanFromScanNumber(scanNumber, scanStatistics);
for (var i = 0; i < segmentedScan.Positions.Length; i++)
{
Writer.WriteLine(
$"{segmentedScan.Positions[i]:F7} {segmentedScan.Intensities[i]:F10}");
}
}
Writer.WriteLine("END IONS");
}
}
}
}
}
/// <inheritdoc />
public override void Write(IRawDataPlus rawFile, int firstScanNumber, int lastScanNumber)
{
ConfigureWriter(".mgf");
using (Writer)
{
for (var scanNumber = firstScanNumber; scanNumber <= lastScanNumber; scanNumber++)
{
// Get each scan from the RAW file
var scan = Scan.FromFile(rawFile, scanNumber);
// Check to see if the RAW file contains label (high-res) data and if it is present
// then look for any data that is out of order
var time = rawFile.RetentionTimeFromScanNumber(scanNumber);
// Get the scan filter for this scan number
var scanFilter = rawFile.GetFilterForScanNumber(scanNumber);
// Get the scan event for this scan number
var scanEvent = rawFile.GetScanEventForScanNumber(scanNumber);
switch (scanFilter.MSOrder)
{
case MSOrderType.Ms:
// Keep track of scan number for precursor reference
_precursorScanNumber = scanNumber;
break;
case MSOrderType.Ms2:
{
if (scanEvent.ScanData == ScanDataType.Centroid ||
(scanEvent.ScanData == ScanDataType.Profile &&
(scan.HasCentroidStream || ParseInput.OutputFormat != OutputFormat.MGFNoProfileData)))
{
Writer.WriteLine("BEGIN IONS");
Writer.WriteLine($"TITLE={ConstructSpectrumTitle(scanNumber)}");
Writer.WriteLine($"SCANS={scanNumber}");
Writer.WriteLine($"RTINSECONDS={(time * 60).ToString(CultureInfo.InvariantCulture)}");
// Get the reaction information for the first precursor
try
{
var reaction = scanEvent.GetReaction(0);
var precursorMass = reaction.PrecursorMass;
Writer.WriteLine("PEPMASS=" +
precursorMass.ToString("0.0000000", CultureInfo.InvariantCulture));
//var precursorIntensity = 0.0;
//GetPrecursorIntensity(rawFile, _precursorScanNumber, precursorMass);
//Writer.WriteLine(precursorIntensity != null
// ? $"PEPMASS={precursorMass:F7} {precursorIntensity}"
// : $"PEPMASS={precursorMass:F7}");
}
catch (ArgumentOutOfRangeException exception)
{
Log.Warn("No reaction found for scan " + scanNumber);
}
// trailer extra data list
var trailerData = rawFile.GetTrailerExtraInformation(scanNumber);
for (var i = 0; i < trailerData.Length; i++)
{
if (trailerData.Labels[i] == "Charge State:")
{
if (Convert.ToInt32(trailerData.Values[i]) > 0)
{
Writer.WriteLine($"CHARGE={trailerData.Values[i]}+");
}
}
}
// write the filter string
//Writer.WriteLine($"SCANEVENT={scanEvent.ToString()}");
// Check if the scan has a centroid stream
if (scan.HasCentroidStream)
{
var centroidStream = rawFile.GetCentroidStream(scanNumber, false);
if (scan.CentroidScan.Length > 0)
{
for (var i = 0; i < centroidStream.Length; i++)
{
Writer.WriteLine(
centroidStream.Masses[i].ToString("0.0000000",
CultureInfo.InvariantCulture)
+ " "
+ centroidStream.Intensities[i].ToString("0.0000000",
CultureInfo.InvariantCulture));
}
}
}
// Otherwise take the profile data
else
{
// Get the scan statistics from the RAW file for this scan number
var scanStatistics = rawFile.GetScanStatsForScanNumber(scanNumber);
// Get the segmented (low res and profile) scan data
var segmentedScan =
rawFile.GetSegmentedScanFromScanNumber(scanNumber, scanStatistics);
for (var i = 0; i < segmentedScan.Positions.Length; i++)
{
Writer.WriteLine(
segmentedScan.Positions[i].ToString("0.0000000",
CultureInfo.InvariantCulture)
+ " "
+ segmentedScan.Intensities[i].ToString("0.0000000000",
CultureInfo.InvariantCulture));
}
}
Writer.WriteLine("END IONS");
}
break;
}
}
}
}
}
/// <summary>
/// </summary>
/// <param name="rawFile"></param>
/// <param name="filename"></param>
/// <param name="L"></param>
public static void WriteSpectrumAsRcode(this IRawDataPlus rawFile, string filename, List <int> L)
{
int count = 1;
var trailerFields = rawFile.GetTrailerExtraHeaderInformation();
int indexCharge = rawFile.GetIndexOfPattern("Charge State");
int indexMonoisotopicmZ = rawFile.GetIndexOfPattern("MonoisotopicmZ");
using (System.IO.StreamWriter file =
new System.IO.StreamWriter(filename))
{
foreach (int scanNumber in L)
{
var basepeakMass = -1.0;
var basepeakIntensity = -1.0;
var scanStatistics = rawFile.GetScanStatsForScanNumber(scanNumber);
var centroidStream = rawFile.GetCentroidStream(scanNumber, false);
var scanTrailer = rawFile.GetTrailerExtraInformation(scanNumber);
var scanEvent = rawFile.GetScanEventForScanNumber(scanNumber);
var scan = Scan.FromFile(rawFile, scanNumber);
file.WriteLine("e$Spectrum[[{0}]] <- list(", count++);
file.WriteLine("\tscan = {0},", scanNumber);
try
{
basepeakMass = (scanStatistics.BasePeakMass);
basepeakIntensity = Math.Round(scanStatistics.BasePeakIntensity);
file.WriteLine("\tbasePeak = c({0}, {1}),", basepeakMass, basepeakIntensity);
}
catch
{
file.WriteLine("\tbasePeak = c(NA, NA),");
}
file.WriteLine("\tTIC = {0},", scanStatistics.TIC.ToString());
file.WriteLine("\tmassRange = c({0}, {1}),", scanStatistics.LowMass.ToString(), scanStatistics.HighMass.ToString());
file.WriteLine("\tscanType = \"{0}\",", scanStatistics.ScanType.ToString());
file.WriteLine("\trtinseconds = {0},", Math.Round(scanStatistics.StartTime * 60 * 1000) / 1000);
try
{
var reaction0 = scanEvent.GetReaction(0);
file.WriteLine("\tpepmass = {0},", reaction0.PrecursorMass);
}
catch
{
file.WriteLine("\tpepmass = NA,");
}
if (scanStatistics.IsCentroidScan && centroidStream.Length > 0)
{
// Get the centroid (label) data from the RAW file for this scan
file.WriteLine("\tcentroidStream = TRUE,");
file.WriteLine("\tHasCentroidStream = '{0}, Length={1}',", scan.HasCentroidStream, scan.CentroidScan.Length);
if (scan.HasCentroidStream)
{
file.WriteLine("\tcentroid.mZ = c(" + string.Join(", ", scan.CentroidScan.Masses.ToArray()) + "),");
file.WriteLine("\tcentroid.intensity = c(" + string.Join(", ", scan.CentroidScan.Intensities.ToArray()) + "),");
}
file.WriteLine("\ttitle = \"File: {0}; SpectrumID: {1}; scans: {2}\",",
Path.GetFileName(rawFile.FileName),
null,
scanNumber);
if (indexMonoisotopicmZ > 0)
{
file.WriteLine("\tmonoisotopicMz = {0},", Convert.ToDouble(scanTrailer.Values.ToArray()[indexMonoisotopicmZ]));
}
else
{
file.WriteLine("\tmonoisotopicMz = NA,");
}
if (indexCharge > 0)
{
file.WriteLine("\tcharge = {0},", int.Parse(scanTrailer.Values.ToArray()[indexCharge]));
}
else
{
file.WriteLine("\tcharge = NA,");
}
file.WriteLine("\tmZ = c(" + string.Join(", ", centroidStream.Masses) + "),");
file.WriteLine("\tintensity = c(" + string.Join(", ", centroidStream.Intensities) + "),");
file.WriteLine("\tnoises = c(" + string.Join(", ", centroidStream.Noises) + "),");
file.WriteLine("\tresolutions = c(" + string.Join(", ", centroidStream.Resolutions.ToArray()) + "),");
file.WriteLine("\tcharges = c(" + string.Join(", ", centroidStream.Charges) + "),");
file.WriteLine("\tbaselines = c(" + string.Join(", ", centroidStream.Baselines) + "),");
}
else
{
file.WriteLine("\tcentroidStream = FALSE,");
file.WriteLine("\tHasCentroidStream = '{0}, Length={1}',", scan.HasCentroidStream, scan.CentroidScan.Length);
if (scan.HasCentroidStream)
{
file.WriteLine("\tcentroid.mZ = c(" + string.Join(",", scan.CentroidScan.Masses.ToArray()) + "),");
file.WriteLine("\tcentroid.intensity = c(" + string.Join(",", scan.CentroidScan.Intensities.ToArray()) + "),");
}
file.WriteLine("\ttitle = \"File: {0}; SpectrumID: {1}; scans: {2}\",",
Path.GetFileName(rawFile.FileName),
null,
scanNumber);
if (indexCharge > 0)
{
file.WriteLine("\tcharge = {0},", int.Parse(scanTrailer.Values.ToArray()[indexCharge]));
}
else
{
file.WriteLine("\tcharge = NA,");
}
if (indexMonoisotopicmZ > 0)
{
file.WriteLine("\tmonoisotopicMz = {0},", Convert.ToDouble(scanTrailer.Values.ToArray()[indexMonoisotopicmZ]));
}
else
{
file.WriteLine("\tmonoisotopicMz = NA,");
}
file.WriteLine("\tmZ = c(" + string.Join(",", scan.SegmentedScan.Positions) + "),");
file.WriteLine("\tintensity = c(" + string.Join(",", scan.SegmentedScan.Intensities) + "),");
// file.WriteLine("\tnoises = c(" + string.Join(",", scan.SegmentedScan.Noises) + "),");
}
// ============= Instrument Data =============
// write scan Trailer
var trailerValues = scanTrailer.Values;
var trailerLabels = scanTrailer.Labels;
var zipTrailer = trailerLabels.ToArray().Zip(trailerValues, (a, b) => string.Format("\t\"{0}\" = \"{1}\"", a, b));
file.WriteLine(string.Join(", \n", zipTrailer));
file.WriteLine(")");
}
}
return;
}
}
}
writer.Flush();
startNum += 1;
}
writer.Close();
}
public static void getMSdataFromRT(double startRT, int endRT, string filePath, double lowMS = 0.00, double highMS = 0.00)
{
IRawDataPlus plus = RawFileReaderAdapter.FileFactory(filePath);
plus.SelectInstrument(Device.MS, 1);
if (highMS - 0.00 <= 0.01)
{
highMS = plus.RunHeaderEx.HighMass;
}
int startNum = plus.ScanNumberFromRetentionTime(startRT);
int endNum = plus.ScanNumberFromRetentionTime(endRT);
int maxNum = plus.RunHeaderEx.LastSpectrum > endNum ? endNum : plus.RunHeaderEx.LastSpectrum;
string fileName = DateTime.Now.ToLocalTime().ToString().Replace("/", "").Replace(":", "").Replace(" ", "_") + ".csv";
FileStream stream = new FileStream(fileName, FileMode.Create, FileAccess.Write);
StreamWriter writer = new StreamWriter(stream, Encoding.UTF8);
writer.WriteLine("ScanNumber, RT, Mass, Resolution, Intensity, Noise, Filter");
while (startNum <= endNum)
{
Scan scan = Scan.FromFile(plus, startNum);
string filter = plus.GetFilterForScanNumber(startNum).ToString();
int cnt = 0;
while (cnt < scan.PreferredMasses.Length)
{
if (lowMS < scan.PreferredMasses[cnt] && scan.PreferredMasses[cnt] < highMS)
{
double rt = plus.RetentionTimeFromScanNumber(startNum);
double msval = scan.PreferredMasses[cnt];
double resolution = (scan.PreferredResolutions.Length == 0) ? 0.0 : scan.PreferredResolutions[cnt];
double intensity = (scan.PreferredIntensities.Length == 0) ? 0.0 : scan.PreferredIntensities[cnt];
double noise = (scan.PreferredNoises.Length == 0) ? 0.0 : scan.PreferredNoises[cnt];
//writer.WriteLine("{0},{1},{2},{3},{4},{5},{6}", startNum.ToString(), rt.ToString(), msval.ToString(), resolution.ToString(), intensity.ToString(), noise.ToString(), filter.ToString());
writer.WriteLine("{0},{1},{2},{3}", startNum.ToString(), rt.ToString(), msval.ToString(), intensity.ToString());
}
cnt += 1;
}
startNum += 1;
}
writer.Close();
}
public static void getSRMIacdMZ(string filePath, double valMS,int recVal)
{
IRawDataPlus plus = RawFileReaderAdapter.FileFactory(filePath);
//////////////////////////////////
plus.SelectInstrument(Device.MS, 1);
/////////////////////////////////
var startNum = plus.RunHeaderEx.FirstSpectrum;
var endNum = plus.RunHeaderEx.LastSpectrum;
string fileName = DateTime.Now.ToLocalTime().ToString().Replace("/", "").Replace(":", "").Replace(" ", "_") + ".csv";
FileStream stream = new FileStream(fileName, FileMode.Create, FileAccess.Write);
StreamWriter writer = new StreamWriter(stream, Encoding.UTF8);
double[] masses = null;
double[] intensities = null;
writer.WriteLine("ScanNumber, RT, Mass, Intensity");
while (startNum <= endNum)
{
double rt = plus.RetentionTimeFromScanNumber(startNum);
IScanFilter scanFilter = plus.GetFilterForScanNumber(startNum);
if (scanFilter.MSOrder == MSOrderType.Ms)
{
Scan scan = Scan.FromFile(plus, startNum);
IScanEvent scanEvent = plus.GetScanEventForScanNumber(startNum);
if (scan.HasCentroidStream && (scanEvent.ScanData == ScanDataType.Centroid || scanEvent.ScanData == ScanDataType.Profile))
{
var centroidStream = plus.GetCentroidStream(startNum, false);
if (scan.CentroidScan.Length > 0)
{
masses = centroidStream.Masses;
intensities = centroidStream.Intensities;
}
}
else
{
// Get the scan statistics from the RAW file for this scan number
var scanStatistics = plus.GetScanStatsForScanNumber(startNum);
// Get the segmented (low res and profile) scan data
var segmentedScan = plus.GetSegmentedScanFromScanNumber(startNum, scanStatistics);
if (segmentedScan.Positions.Length > 0)
{
masses = segmentedScan.Positions;
intensities = segmentedScan.Intensities;
}
}
for(int i = 0; i < masses.Length; ++ i)
{
masses[i] = Double.Parse(masses[i].ToString("n4"));
}
int front = 0;
int rear = masses.Length - 1;
int mid = front + ((rear - front) >> 1);
bool findVal = false;
while(front <= rear)
{
if (Double.Equals(masses[mid],valMS))
{
findVal = true;
break;
}
else if(masses[mid] < valMS)
{
front = mid + 1;
}
else
{
rear = mid - 1;
}
mid = front + ((rear - front) >> 1);
}
if(findVal && intensities[mid] >= recVal)
{
writer.WriteLine("{0},{1},{2},{3}",startNum.ToString(), rt.ToString(), masses[mid].ToString(), intensities[mid].ToString());
}
}
writer.Flush();
startNum += 1;
}
writer.Close();
}
}
}
public bool IsCentroidScan(int scanNumber)
{
var scanStatistics = rawFile.GetScanStatsForScanNumber(scanNumber);
return(scanStatistics.IsCentroidScan);
}
