END_SECTION
START_SECTION(OpenSwathDataAccessHelper::convertToSpectrumPtr(sptr))
{
MSSpectrum<> sptr,omsptr;
Peak1D p1;
p1.setIntensity(1.0f);
p1.setMZ(2.0);
Peak1D p2;
p2.setIntensity(2.0f);
p2.setMZ(10.0);
Peak1D p3;
p3.setIntensity(3.0f);
p3.setMZ(30.0);
TEST_STRING_EQUAL(sptr.getName(), "")
sptr.setName("my_fancy_name");
sptr.push_back(p1);
sptr.push_back(p2);
sptr.push_back(p3);
OpenSwath::SpectrumPtr p = OpenSwathDataAccessHelper::convertToSpectrumPtr(sptr);
OpenSwathDataAccessHelper::convertToOpenMSSpectrum(p,omsptr);
TEST_REAL_SIMILAR(p->getMZArray()->data[0],2.0);
TEST_REAL_SIMILAR(p->getMZArray()->data[1],10.0);
TEST_REAL_SIMILAR(p->getMZArray()->data[2],30.0);
TEST_REAL_SIMILAR(p->getIntensityArray()->data[0],1.0f);
TEST_REAL_SIMILAR(p->getIntensityArray()->data[1],2.0f);
TEST_REAL_SIMILAR(p->getIntensityArray()->data[2],3.0f);
}
/// integrate all masses in window
bool integrateWindow(const OpenSwath::SpectrumPtr spectrum, double mz_start,
double mz_end, double & mz, double & intensity, bool centroided)
{
#ifdef OPENMS_ASSERTIONS
//check precondtion
if (std::adjacent_find(spectrum->getMZArray()->data.begin(), spectrum->getMZArray()->data.end(), std::greater<double>()) != spectrum->getMZArray()->data.end())
{
throw std::runtime_error("Precondition MZ vector needs to be sorted!");
}
#endif
intensity = 0;
if (!centroided)
{
// get the weighted average for noncentroided data.
// TODO this is not optimal if there are two peaks in this window (e.g. if the window is too large)
mz = 0;
intensity = 0;
std::vector<double>::const_iterator mz_arr_end = spectrum->getMZArray()->data.end();
std::vector<double>::const_iterator int_it = spectrum->getIntensityArray()->data.begin();
// this assumes that the spectra are sorted!
std::vector<double>::const_iterator mz_it = std::lower_bound(spectrum->getMZArray()->data.begin(),
spectrum->getMZArray()->data.end(), mz_start);
std::vector<double>::const_iterator mz_it_end = std::lower_bound(mz_it, mz_arr_end, mz_end);
// also advance intensity iterator now
std::iterator_traits< std::vector<double>::const_iterator >::difference_type iterator_pos = std::distance((std::vector<double>::const_iterator)spectrum->getMZArray()->data.begin(), mz_it);
std::advance(int_it, iterator_pos);
for (; mz_it != mz_it_end; ++mz_it, ++int_it)
{
intensity += (*int_it);
mz += (*int_it) * (*mz_it);
}
if (intensity > 0.)
{
mz /= intensity;
return true;
}
else
{
mz = -1;
intensity = 0;
return false;
}
}
else
{
// not implemented
throw "Not implemented";
}
}
void OpenSwathDataAccessHelper::convertToOpenMSSpectrum(const OpenSwath::SpectrumPtr sptr, OpenMS::MSSpectrum<> & spectrum)
{
// recreate a spectrum from the data arrays!
OpenSwath::BinaryDataArrayPtr mz_arr = sptr->getMZArray();
OpenSwath::BinaryDataArrayPtr int_arr = sptr->getIntensityArray();
spectrum.reserve(mz_arr->data.size());
for (Size i = 0; i < mz_arr->data.size(); i++)
{
Peak1D p;
p.setMZ(mz_arr->data[i]);
p.setIntensity(int_arr->data[i]);
spectrum.push_back(p);
}
}
OpenSwath::SpectrumPtr prepareShiftedSpectrum()
{
OpenSwath::SpectrumPtr sptr = prepareSpectrum();
// shift the peaks by a fixed amount in ppm
for (std::size_t i = 0; i < sptr->getMZArray()->data.size() / 2.0; i++)
{
sptr->getMZArray()->data[i] += sptr->getMZArray()->data[i] / 1000000 * 15; // shift first peak by 15 ppm
}
for (std::size_t i = sptr->getMZArray()->data.size() / 2.0; i < sptr->getMZArray()->data.size(); i++)
{
sptr->getMZArray()->data[i] += sptr->getMZArray()->data[i] / 1000000 * 10; // shift second peak by 10 ppm
}
return sptr;
}
void ChromatogramExtractorAlgorithm::extractChromatograms(const OpenSwath::SpectrumAccessPtr input,
std::vector< OpenSwath::ChromatogramPtr >& output,
std::vector<ExtractionCoordinates> extraction_coordinates, double mz_extraction_window,
bool ppm, String filter)
{
Size input_size = input->getNrSpectra();
if (input_size < 1)
{
return;
}
if (output.size() != extraction_coordinates.size())
{
throw Exception::IllegalArgument(__FILE__, __LINE__, __PRETTY_FUNCTION__,
"Output and extraction coordinates need to have the same size");
}
int used_filter = getFilterNr_(filter);
// assert that they are sorted!
if (std::adjacent_find(extraction_coordinates.begin(), extraction_coordinates.end(),
ExtractionCoordinates::SortExtractionCoordinatesReverseByMZ) != extraction_coordinates.end())
{
throw Exception::IllegalArgument(__FILE__, __LINE__, __PRETTY_FUNCTION__,
"Input to extractChromatogram needs to be sorted by m/z");
}
//go through all spectra
startProgress(0, input_size, "Extracting chromatograms");
for (Size scan_idx = 0; scan_idx < input_size; ++scan_idx)
{
setProgress(scan_idx);
OpenSwath::SpectrumPtr sptr = input->getSpectrumById(scan_idx);
OpenSwath::SpectrumMeta s_meta = input->getSpectrumMetaById(scan_idx);
OpenSwath::BinaryDataArrayPtr mz_arr = sptr->getMZArray();
OpenSwath::BinaryDataArrayPtr int_arr = sptr->getIntensityArray();
std::vector<double>::const_iterator mz_start = mz_arr->data.begin();
std::vector<double>::const_iterator mz_end = mz_arr->data.end();
std::vector<double>::const_iterator mz_it = mz_arr->data.begin();
std::vector<double>::const_iterator int_it = int_arr->data.begin();
if (sptr->getMZArray()->data.size() == 0)
continue;
// go through all transitions / chromatograms which are sorted by
// ProductMZ. We can use this to step through the spectrum and at the
// same time step through the transitions. We increase the peak counter
// until we hit the next transition and then extract the signal.
for (Size k = 0; k < extraction_coordinates.size(); ++k)
{
double integrated_intensity = 0;
double current_rt = s_meta.RT;
if (extraction_coordinates[k].rt_end - extraction_coordinates[k].rt_start > 0 &&
(current_rt < extraction_coordinates[k].rt_start ||
current_rt > extraction_coordinates[k].rt_end) )
{
continue;
}
if (used_filter == 1)
{
extract_value_tophat( mz_start, mz_it, mz_end, int_it,
extraction_coordinates[k].mz, integrated_intensity, mz_extraction_window, ppm);
}
else if (used_filter == 2)
{
throw Exception::NotImplemented(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
// Time is first, intensity is second
output[k]->binaryDataArrayPtrs[0]->data.push_back(current_rt);
output[k]->binaryDataArrayPtrs[1]->data.push_back(integrated_intensity);
}
}
endProgress();
}