/** Checks whether the two input workspaces have the same bin masking.
 *  Prints a warning if not.
 *  @param w1 :: The first (sample) input workspace
 *  @param w2 :: The second (vanadium) input workspace
 *  @param index :: The workspace index to check
 */
void PointByPointVCorrection::check_masks(
    const API::MatrixWorkspace_const_sptr &w1,
    const API::MatrixWorkspace_const_sptr &w2, const int &index) const {
  static bool warned = false;
  if (!warned) {
    const bool w1masked = w1->hasMaskedBins(index);
    const bool w2masked = w2->hasMaskedBins(index);
    if ((w1masked && w2masked &&
         (w1->maskedBins(index) != w2->maskedBins(index))) ||
        (w1masked && !w2masked) || (!w1masked && w2masked)) {
      g_log.warning("The input workspaces do not have matching bin masking");
      warned = true;
    }
  }
}
Beispiel #2
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  /**
   * Write bin masking information
   * @param ws :: The workspace
   * @return true for OK, false for error
   */
  bool NexusFileIO::writeNexusBinMasking(API::MatrixWorkspace_const_sptr ws) const
  {
    std::vector< int > spectra;
    std::vector< std::size_t > bins;
    std::vector< double > weights;
    int spectra_count = 0;
    int offset = 0;
    for(std::size_t i=0;i<ws->getNumberHistograms(); ++i)
    {
      if (ws->hasMaskedBins(i))
      {
        const API::MatrixWorkspace::MaskList& mList = ws->maskedBins(i);
        spectra.push_back(spectra_count);
        spectra.push_back(offset);
        API::MatrixWorkspace::MaskList::const_iterator it = mList.begin();
        for(;it != mList.end(); ++it)
        {
          bins.push_back(it->first);
          weights.push_back(it->second);
        }
        ++spectra_count;
        offset += static_cast<int>(mList.size());
      }
    }

    if (spectra_count == 0) return false;

    NXstatus status;

    // save spectra offsets as a 2d array of ints
    int dimensions[2];
    dimensions[0]=spectra_count;
    dimensions[1]=2;
    status=NXmakedata(fileID, "masked_spectra", NX_INT32, 2, dimensions);
    if(status==NX_ERROR) return false;
    NXopendata(fileID, "masked_spectra");
    const std::string description = "spectra index,offset in masked_bins and mask_weights";
    NXputattr(fileID, "description",  reinterpret_cast<void*>(const_cast<char*>(description.c_str())), static_cast<int>(description.size()+1), NX_CHAR);
    NXputdata(fileID, (void*)&spectra[0]);
    NXclosedata(fileID);

    // save masked bin indices
    dimensions[0]=static_cast<int>(bins.size());
    status=NXmakedata(fileID, "masked_bins", NX_INT32, 1, dimensions);
    if(status==NX_ERROR) return false;
    NXopendata(fileID, "masked_bins");
    NXputdata(fileID, (void*)&bins[0]);
    NXclosedata(fileID);

    // save masked bin weights
    dimensions[0]=static_cast<int>(bins.size());
    status=NXmakedata(fileID, "mask_weights", NX_FLOAT64, 1, dimensions);
    if(status==NX_ERROR) return false;
    NXopendata(fileID, "mask_weights");
    NXputdata(fileID, (void*)&weights[0]);
    NXclosedata(fileID);

    return true;
  }