Example #1
0
size_t MaskPeaksWorkspace::getWkspIndex(const detid2index_map &pixel_to_wi,
                                        Geometry::IComponent_const_sptr comp,
                                        const int x, const int y) {
  Geometry::RectangularDetector_const_sptr det =
      boost::dynamic_pointer_cast<const Geometry::RectangularDetector>(comp);
  if (det) {
    if (x >= det->xpixels() || x < 0 || y >= det->ypixels() || y < 0)
      return EMPTY_INT();
    if ((x >= det->xpixels()) ||
        (x < 0) // this check is unnecessary as callers are doing it too
        || (y >= det->ypixels()) ||
        (y < 0)) // but just to make debugging easier
    {
      std::stringstream msg;
      msg << "Failed to find workspace index for x=" << x << " y=" << y
          << "(max x=" << det->xpixels() << ", max y=" << det->ypixels() << ")";
      throw std::runtime_error(msg.str());
    }

    int pixelID = det->getAtXY(x, y)->getID();

    // Find the corresponding workspace index, if any
    auto wiEntry = pixel_to_wi.find(pixelID);
    if (wiEntry == pixel_to_wi.end()) {
      std::stringstream msg;
      msg << "Failed to find workspace index for x=" << x << " y=" << y;
      throw std::runtime_error(msg.str());
    }
    return wiEntry->second;
  } else {
    std::vector<Geometry::IComponent_const_sptr> children;
    boost::shared_ptr<const Geometry::ICompAssembly> asmb =
        boost::dynamic_pointer_cast<const Geometry::ICompAssembly>(comp);
    asmb->getChildren(children, false);
    boost::shared_ptr<const Geometry::ICompAssembly> asmb2 =
        boost::dynamic_pointer_cast<const Geometry::ICompAssembly>(children[0]);
    std::vector<Geometry::IComponent_const_sptr> grandchildren;
    asmb2->getChildren(grandchildren, false);
    int NROWS = static_cast<int>(grandchildren.size());
    int NCOLS = static_cast<int>(children.size());
    // Wish pixels and tubes start at 1 not 0
    if (x - 1 >= NCOLS || x - 1 < 0 || y - 1 >= NROWS || y - 1 < 0)
      return EMPTY_INT();
    std::string bankName = comp->getName();
    detid2index_map::const_iterator it =
        pixel_to_wi.find(findPixelID(bankName, x, y));
    if (it == pixel_to_wi.end())
      return EMPTY_INT();
    return (it->second);
  }
}
/* Set workspace->group ID map by detectors (range)
 *
 */
void LoadDetectorsGroupingFile::setByDetectors() {

  // 0. Check
  if (!m_instrument && m_groupDetectorsMap.size() > 0) {
    std::map<int, std::vector<detid_t>>::iterator mapiter;
    bool norecord = true;
    for (mapiter = m_groupDetectorsMap.begin();
         mapiter != m_groupDetectorsMap.end(); ++mapiter)
      if (mapiter->second.size() > 0) {
        norecord = false;
        g_log.error() << "Instrument is not specified in XML file. "
                      << "But tag 'detid' is used in XML file for Group "
                      << mapiter->first << ". It is not allowed. " << std::endl;
        break;
      }

    if (!norecord)
      throw std::invalid_argument(
          "XML definition involving detectors causes error");
  }

  // 1. Prepare
  const detid2index_map indexmap =
      m_groupWS->getDetectorIDToWorkspaceIndexMap(true);

  // 2. Set GroupingWorkspace
  for (auto &detectorMap : m_groupDetectorsMap) {
    g_log.debug() << "Group ID = " << detectorMap.first << std::endl;

    for (auto detid : detectorMap.second) {
      auto itx = indexmap.find(detid);

      if (itx != indexmap.end()) {
        size_t wsindex = itx->second;
        m_groupWS->dataY(wsindex)[0] = detectorMap.first;
      } else {
        g_log.error() << "Pixel w/ ID = " << detid << " Cannot Be Located"
                      << std::endl;
      }
    } // ENDFOR detid (in range)
  }   // ENDFOR each group ID

  return;
}
Example #3
0
/**  Mask detectors or Unmask detectors
 *   @param indexmap: spectraId to spectraNum map used
 *                   in masking
 *   @param tomask:  true to mask, false to unmask
 *   @param singledetids: list of individual det ids to mask
 */
void LoadMask::processMaskOnDetectors(
    const detid2index_map &indexmap, bool tomask,
    const std::vector<detid_t> &singledetids) {
  // 1. Get index map
  // 2. Mask
  g_log.debug() << "Mask = " << tomask
                << "  Final Single IDs Size = " << singledetids.size() << '\n';

  for (auto detid : singledetids) {
    detid2index_map::const_iterator it;
    it = indexmap.find(detid);
    if (it != indexmap.end()) {
      size_t index = it->second;
      m_maskWS->mutableY(index)[0] = (tomask) ? 1 : 0;
    } else {
      g_log.warning() << "Pixel w/ ID = " << detid << " Cannot Be Located\n";
    }
  }
}
/** Calculate (all) detectors' offsets
  */
void GetDetOffsetsMultiPeaks::calculateDetectorsOffsets() {
  int nspec = static_cast<int>(m_inputWS->getNumberHistograms());

  // To get the workspace index from the detector ID
  const detid2index_map pixel_to_wi =
      m_maskWS->getDetectorIDToWorkspaceIndexMap(true);

  // Fit all the spectra with a gaussian
  Progress prog(this, 0, 1.0, nspec);

  // cppcheck-suppress syntaxError
    PRAGMA_OMP(parallel for schedule(dynamic, 1) )
    for (int wi = 0; wi < nspec; ++wi) {
      PARALLEL_START_INTERUPT_REGION

      std::vector<double> fittedpeakpositions, tofitpeakpositions;
      FitPeakOffsetResult offsetresult =
          calculatePeakOffset(wi, fittedpeakpositions, tofitpeakpositions);

      // Get the list of detectors in this pixel
      const std::set<detid_t> &dets =
          m_inputWS->getSpectrum(wi)->getDetectorIDs();

      // Most of the exec time is in FitSpectra, so this critical block should
      // not be a problem.
      PARALLEL_CRITICAL(GetDetOffsetsMultiPeaks_setValue) {
        // Use the same offset for all detectors from this pixel (in case of
        // summing pixels)
        std::set<detid_t>::iterator it;
        for (it = dets.begin(); it != dets.end(); ++it) {
          // Set value to output peak offset workspace
          m_outputW->setValue(*it, offsetresult.offset, offsetresult.fitSum);

          // Set value to output peak number workspace
          m_outputNP->setValue(*it, offsetresult.peakPosFittedSize,
                               offsetresult.chisqSum);

          // Set value to mask workspace
          const auto mapEntry = pixel_to_wi.find(*it);
          if (mapEntry == pixel_to_wi.end())
            continue;

          const size_t workspaceIndex = mapEntry->second;
          if (offsetresult.mask > 0.9) {
            // Being masked
            m_maskWS->maskWorkspaceIndex(workspaceIndex);
            m_maskWS->dataY(workspaceIndex)[0] = offsetresult.mask;
          } else {
            // Using the detector
            m_maskWS->dataY(workspaceIndex)[0] = offsetresult.mask;

            // check the average value of delta(d)/d.  if it is far off the
            // theorical value, output
            // FIXME - This warning should not appear by filtering out peaks
            // that are too wide or narrow.
            // TODO - Delete the if statement below if it is never triggered.
            if (m_hasInputResolution) {
              double pixelresolution = m_inputResolutionWS->readY(wi)[0];
              if (offsetresult.resolution > 10 * pixelresolution ||
                  offsetresult.resolution < 0.1 * pixelresolution)
                g_log.warning() << "Spectrum " << wi
                                << " delta(d)/d = " << offsetresult.resolution
                                << "\n";
            }
          }
        } // ENDFOR (detectors)

        // Report offset fitting result/status
        addInfoToReportWS(wi, offsetresult, tofitpeakpositions,
                          fittedpeakpositions);

      } // End of critical region

      prog.report();
      PARALLEL_END_INTERUPT_REGION
    }
    PARALLEL_CHECK_INTERUPT_REGION

    return;
}
/*
 * Convert Componenet -> Detector IDs -> Workspace Indices -> set group ID
 */
void LoadDetectorsGroupingFile::setByComponents() {

  // 0. Check
  if (!m_instrument) {
    std::map<int, std::vector<std::string>>::iterator mapiter;
    bool norecord = true;
    for (mapiter = m_groupComponentsMap.begin();
         mapiter != m_groupComponentsMap.end(); ++mapiter) {
      if (mapiter->second.size() > 0) {
        g_log.error() << "Instrument is not specified in XML file.  "
                      << "But tag 'component' is used in XML file for Group "
                      << mapiter->first << " It is not allowed" << std::endl;
        norecord = false;
        break;
      }
    }
    if (!norecord)
      throw std::invalid_argument(
          "XML definition involving component causes error");
  }

  // 1. Prepare
  const detid2index_map indexmap =
      m_groupWS->getDetectorIDToWorkspaceIndexMap(true);

  // 2. Set
  for (auto &componentMap : m_groupComponentsMap) {
    g_log.debug() << "Group ID = " << componentMap.first << " With "
                  << componentMap.second.size() << " Components" << std::endl;

    for (auto &name : componentMap.second) {

      // a) get component
      Geometry::IComponent_const_sptr component =
          m_instrument->getComponentByName(name);

      // b) component -> component assembly --> children (more than detectors)
      boost::shared_ptr<const Geometry::ICompAssembly> asmb =
          boost::dynamic_pointer_cast<const Geometry::ICompAssembly>(component);
      std::vector<Geometry::IComponent_const_sptr> children;
      asmb->getChildren(children, true);

      g_log.debug() << "Component Name = " << name
                    << "  Component ID = " << component->getComponentID()
                    << "Number of Children = " << children.size() << std::endl;

      for (auto child : children) {
        // c) convert component to detector
        Geometry::IDetector_const_sptr det =
            boost::dynamic_pointer_cast<const Geometry::IDetector>(child);

        if (det) {
          // Component is DETECTOR:
          int32_t detid = det->getID();
          auto itx = indexmap.find(detid);
          if (itx != indexmap.end()) {
            size_t wsindex = itx->second;
            m_groupWS->dataY(wsindex)[0] = componentMap.first;
          } else {
            g_log.error() << "Pixel w/ ID = " << detid << " Cannot Be Located"
                          << std::endl;
          }
        } // ENDIF Detector

      } // ENDFOR (children of component)
    }   // ENDFOR (component)

  } // ENDFOR GroupID

  return;
}
int PeakIntegration::fitneighbours(int ipeak, std::string det_name, int x0,
                                   int y0, int idet, double qspan,
                                   PeaksWorkspace_sptr &Peaks,
                                   const detid2index_map &pixel_to_wi) {
  UNUSED_ARG(ipeak);
  UNUSED_ARG(det_name);
  UNUSED_ARG(x0);
  UNUSED_ARG(y0);
  Geometry::IPeak &peak = Peaks->getPeak(ipeak);
  // Number of slices
  int TOFmax = 0;

  IAlgorithm_sptr slice_alg = createChildAlgorithm("IntegratePeakTimeSlices");
  slice_alg->setProperty<MatrixWorkspace_sptr>("InputWorkspace", inputW);
  std::ostringstream tab_str;
  tab_str << "LogTable" << ipeak;

  slice_alg->setPropertyValue("OutputWorkspace", tab_str.str());
  slice_alg->setProperty<PeaksWorkspace_sptr>("Peaks", Peaks);
  slice_alg->setProperty("PeakIndex", ipeak);
  slice_alg->setProperty("PeakQspan", qspan);

  int nPixels = std::max<int>(0, getProperty("NBadEdgePixels"));

  slice_alg->setProperty("NBadEdgePixels", nPixels);
  slice_alg->executeAsChildAlg();
  Mantid::API::MemoryManager::Instance().releaseFreeMemory();

  MantidVec &Xout = outputW->dataX(idet);
  MantidVec &Yout = outputW->dataY(idet);
  MantidVec &Eout = outputW->dataE(idet);
  TableWorkspace_sptr logtable = slice_alg->getProperty("OutputWorkspace");

  peak.setIntensity(slice_alg->getProperty("Intensity"));
  peak.setSigmaIntensity(slice_alg->getProperty("SigmaIntensity"));

  TOFmax = static_cast<int>(logtable->rowCount());
  for (int iTOF = 0; iTOF < TOFmax; iTOF++) {
    Xout[iTOF] = logtable->getRef<double>(std::string("Time"), iTOF);
    if (m_IC) // Ikeda-Carpenter fit
    {
      Yout[iTOF] = logtable->getRef<double>(std::string("TotIntensity"), iTOF);
      Eout[iTOF] =
          logtable->getRef<double>(std::string("TotIntensityError"), iTOF);
    } else {
      Yout[iTOF] = logtable->getRef<double>(std::string("ISAWIntensity"), iTOF);
      Eout[iTOF] =
          logtable->getRef<double>(std::string("ISAWIntensityError"), iTOF);
    }
  }

  outputW->getSpectrum(idet)->clearDetectorIDs();
  // Find the pixel ID at that XY position on the rectangular detector
  int pixelID = peak.getDetectorID(); // det->getAtXY(x0,y0)->getID();

  // Find the corresponding workspace index, if any
  auto wiEntry = pixel_to_wi.find(pixelID);
  if (wiEntry != pixel_to_wi.end()) {
    size_t wi = wiEntry->second;
    // Set detectorIDs
    outputW->getSpectrum(idet)
        ->addDetectorIDs(inputW->getSpectrum(wi)->getDetectorIDs());
  }

  return TOFmax - 1;
}