ISpectrumFileReader.GetSpectrumEx

Remarks

With a scan number, that scan is read, or an empty spectrum if it does not pass the filter. With -1, the next spectrum that passes the filter is read, and an empty spectrum, with ScanNumber 0, marks the end of the file.

Only Thermo RAW files provide the extended data. Other formats leave it at zero.

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Syntax

Syntax	Description
GetSpectrumEx(int scanNumber = -1, bool centroid = true)	Reads a spectrum from the currently open MS data file, with the extended per-peak data where the format provides it.

Parameters

Name	Type	Description
scanNumber	int	Optional scan number to grab. If omitted (or negative), the next spectrum in the file is loaded.
centroid	bool	Indicates the preferred peak type. Not guaranteed; check the Spectrum.Centroid property.

Returns

Type	Description
SpectrumEx	SpectrumEx object.

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Example

using Nova.Data;
using Nova.Io.Read;

ISpectrumFileReader reader = SpectrumFileReaderFactory.GetReader("DDA.raw", MSFilter.MS2);
SpectrumEx spectrum = reader.GetSpectrumEx(1000);
for (int i = 0; i < spectrum.Count; i++)
{
  Console.WriteLine(spectrum.DataPoints[i].Mz + " at resolution " + spectrum.DataPoints[i].Resolution);
}
reader.Close();