Exemple #1
0
/**
 * @brief IntegratePeaksCWSD::createPeakworkspace
 * @param peakCenter
 * @param mdws :: source MDEventWorkspace where the run numbers come from
 * @return
 */
DataObjects::PeaksWorkspace_sptr
IntegratePeaksCWSD::createPeakworkspace(Kernel::V3D peakCenter,
                                        API::IMDEventWorkspace_sptr mdws) {
  g_log.notice("Create peak workspace for output ... ...");
  // new peak workspace
  DataObjects::PeaksWorkspace_sptr peakws =
      boost::make_shared<DataObjects::PeaksWorkspace>();

  // get number of runs
  size_t numruns = mdws->getNumExperimentInfo();
  for (size_t i_run = 0; i_run < numruns; ++i_run) {
    // get experiment info for run number, instrument and peak count
    API::ExperimentInfo_const_sptr expinfo =
        mdws->getExperimentInfo(static_cast<uint16_t>(i_run));
    int runnumber = expinfo->getRunNumber();
    // FIXME - This is a hack for HB3A's run number issue
    std::map<int, double>::iterator miter =
        m_runPeakCountsMap.find(runnumber % 1000);
    double peakcount(0);
    if (miter != m_runPeakCountsMap.end()) {
      peakcount = miter->second;
      g_log.notice() << "[DB] Get peak count of run " << runnumber << " as "
                     << peakcount << "\n";
    } else {
      g_log.notice() << "[DB] Unable to find run " << runnumber
                     << " in peak count map."
                     << "\n";
    }

    // Create and add a new peak to peak workspace
    DataObjects::Peak newpeak;
    try {
      Geometry::Instrument_const_sptr instrument = expinfo->getInstrument();
      newpeak.setInstrument(instrument);
      newpeak.setGoniometerMatrix(expinfo->run().getGoniometerMatrix());
    } catch (std::exception) {
      throw std::runtime_error(
          "Unable to set instrument and goniometer matrix.");
    }

    newpeak.setQSampleFrame(peakCenter);
    newpeak.setRunNumber(runnumber);
    newpeak.setIntensity(peakcount * m_scaleFactor);

    peakws->addPeak(newpeak);
  }

  g_log.notice("Peak workspace is generated.... ");
  return peakws;
}
Exemple #2
0
    /**
    * Copy over the metadata from the input matrix workspace to output MDEventWorkspace
    * @param mdEventWS :: The output MDEventWorkspace where metadata are copied to. The source of the metadata is the input matrix workspace
    *
    */
    void ConvertToMD::copyMetaData(API::IMDEventWorkspace_sptr &mdEventWS) const
    {


      // found detector which is not a monitor to get proper bin boundaries.
      size_t spectra_index(0);
      bool   dector_found(false);
      for(size_t i=0;i<m_InWS2D->getNumberHistograms(); ++i)
      {
        try
        {
          auto det=m_InWS2D->getDetector(i);
          if (!det->isMonitor())
          {
            spectra_index=i;
            dector_found = true;
            g_log.debug()<<"Using spectra N "<<i<< " as the source of the bin boundaries for the resolution corrections \n"; 
            break;
          }
        }
        catch(...)
        {}
      }
      if (!dector_found)
        g_log.warning()<<"No detectors in the workspace are associated with spectra. Using spectrum 0 trying to retrieve the bin boundaries \n"; 

      // retrieve representative bin boundaries
      MantidVec binBoundaries = m_InWS2D->readX(spectra_index);
      // check if the boundaries transformation is necessary
      if (m_Convertor->getUnitConversionHelper().isUnitConverted())
      {

        if( !dynamic_cast<DataObjects::EventWorkspace *>(m_InWS2D.get()))
        {
          g_log.information()<<" ConvertToMD converts input workspace units, but the bin boundaries are copied from the first workspace spectra. The resolution estimates can be incorrect if unit conversion depends on spectra number.\n";

          UnitsConversionHelper &unitConv = m_Convertor->getUnitConversionHelper();
          unitConv.updateConversion(spectra_index);
          for(size_t i=0;i<binBoundaries.size();i++)
          {
            binBoundaries[i] =unitConv.convertUnits(binBoundaries[i]);
          }
        }
        // sort bin boundaries in case if unit transformation have swapped them.
        if (binBoundaries[0]>binBoundaries[binBoundaries.size()-1])
        {
           g_log.information()<<"Bin boundaries are not arranged monotonously. Sorting performed\n"; 
           std::sort(binBoundaries.begin(),binBoundaries.end());
        }
      }

      // Replacement for SpectraDetectorMap::createIDGroupsMap using the ISpectrum objects instead
      auto mapping = boost::make_shared<det2group_map>();
      for ( size_t i = 0; i < m_InWS2D->getNumberHistograms(); ++i )
      {
        const auto& dets = m_InWS2D->getSpectrum(i)->getDetectorIDs();
        if(!dets.empty())
        {
          std::vector<detid_t> id_vector;
          std::copy(dets.begin(), dets.end(), std::back_inserter(id_vector));
          mapping->insert(std::make_pair(id_vector.front(), id_vector));
        }
      }

      uint16_t nexpts = mdEventWS->getNumExperimentInfo();
      for(uint16_t i = 0; i < nexpts; ++i)
      {
        ExperimentInfo_sptr expt = mdEventWS->getExperimentInfo(i);
        expt->mutableRun().storeHistogramBinBoundaries(binBoundaries);
        expt->cacheDetectorGroupings(*mapping);
      }


    }
/**
* Copy over the metadata from the input matrix workspace to output
*MDEventWorkspace
* @param mdEventWS :: The output MDEventWorkspace where metadata are copied to.
*The source of the metadata is the input matrix workspace
*
*/
void ConvertToMD::copyMetaData(API::IMDEventWorkspace_sptr &mdEventWS) const {

  // found detector which is not a monitor to get proper bin boundaries.
  size_t spectra_index(0);
  bool detector_found(false);
  const auto &spectrumInfo = m_InWS2D->spectrumInfo();
  for (size_t i = 0; i < m_InWS2D->getNumberHistograms(); ++i) {
    if (spectrumInfo.hasDetectors(i) && !spectrumInfo.isMonitor(i)) {
      spectra_index = i;
      detector_found = true;
      g_log.debug() << "Using spectra N " << i
                    << " as the source of the bin "
                       "boundaries for the resolution corrections \n";
      break;
    }
  }
  if (!detector_found) {
    g_log.information()
        << "No spectra in the workspace have detectors associated "
           "with them. Storing bin boundaries from first spectrum for"
           "resolution calculation\n";
  }

  // retrieve representative bin boundaries
  auto binBoundaries = m_InWS2D->x(spectra_index);

  // check if the boundaries transformation is necessary
  if (m_Convertor->getUnitConversionHelper().isUnitConverted()) {

    if (!dynamic_cast<DataObjects::EventWorkspace *>(m_InWS2D.get())) {
      g_log.information() << " ConvertToMD converts input workspace units, but "
                             "the bin boundaries are copied from the first "
                             "workspace spectra. The resolution estimates can "
                             "be incorrect if unit conversion depends on "
                             "spectra number.\n";

      UnitsConversionHelper &unitConv = m_Convertor->getUnitConversionHelper();
      unitConv.updateConversion(spectra_index);
      for (auto &binBoundary : binBoundaries) {
        binBoundary = unitConv.convertUnits(binBoundary);
      }
    }
    // sort bin boundaries in case if unit transformation have swapped them.
    if (binBoundaries[0] > binBoundaries.back()) {
      g_log.information() << "Bin boundaries are not arranged monotonously. "
                             "Sorting performed\n";
      std::sort(binBoundaries.begin(), binBoundaries.end());
    }
  }

  // Replacement for SpectraDetectorMap::createIDGroupsMap using the ISpectrum
  // objects instead
  auto mapping = boost::make_shared<det2group_map>();
  for (size_t i = 0; i < m_InWS2D->getNumberHistograms(); ++i) {
    const auto &dets = m_InWS2D->getSpectrum(i).getDetectorIDs();
    if (!dets.empty())
      mapping->emplace(*dets.begin(), dets);
  }

  // The last experiment info should always be the one that refers
  // to latest converting workspace. All others should have had this
  // information set already
  uint16_t nexpts = mdEventWS->getNumExperimentInfo();
  if (nexpts > 0) {
    ExperimentInfo_sptr expt =
        mdEventWS->getExperimentInfo(static_cast<uint16_t>(nexpts - 1));
    expt->mutableRun().storeHistogramBinBoundaries(binBoundaries.rawData());
    expt->cacheDetectorGroupings(*mapping);
  }
}