LoadILLPolarizedDiffraction.h

Go to the documentation of this file.

// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2017 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include "MantidAPI/IFileLoader.h"
#include "MantidAPI/WorkspaceGroup_fwd.h"
#include "MantidDataHandling/DllConfig.h"
#include "MantidKernel/DateAndTime.h"
#include "MantidKernel/NexusDescriptor.h"
#include "MantidNexus/NexusClasses.h"
 
#include <utility>
 
namespace Mantid {
namespace DataHandling {
 
class MANTID_DATAHANDLING_DLL LoadILLPolarizedDiffraction : public API::IFileLoader<Kernel::NexusDescriptor> {
public:
  const std::string name() const override;
  int version() const override;
  const std::vector<std::string> seeAlso() const override { return {"LoadNexus"}; }
  const std::string category() const override;
  const std::string summary() const override;
  int confidence(Kernel::NexusDescriptor &) const override;
  LoadILLPolarizedDiffraction();
 
private:
  void init() override;
  std::map<std::string, std::string> validateInputs() override;
  void exec() override;
 
  API::MatrixWorkspace_sptr initStaticWorkspace(const NeXus::NXEntry &);
 
  void loadData();
  void loadMetaData();
  API::WorkspaceGroup_sptr sortPolarisations();
  void loadInstrument(const API::MatrixWorkspace_sptr &, const std::string &);
  std::vector<double> loadTwoThetaDetectors(const API::MatrixWorkspace_sptr &, const NeXus::NXEntry &, const int);
  std::vector<double> loadBankParameters(const API::MatrixWorkspace_sptr &, const int);
  void moveTwoTheta(const NeXus::NXEntry &, const API::MatrixWorkspace_sptr &);
  std::vector<double> prepareAxes(const NeXus::NXEntry &);
 
  API::MatrixWorkspace_sptr convertSpectrumAxis(API::MatrixWorkspace_sptr);
  API::MatrixWorkspace_sptr transposeMonochromatic(const API::MatrixWorkspace_sptr &);
 
  size_t m_numberOfChannels; // number of channels data
  size_t m_acquisitionMode;  // acquisition mode of measurement, 0 -
                             // monochromatic, 1 - TOF
 
  std::string m_instName; 
  std::string m_fileName; 
 
  double m_wavelength; // wavelength value is read from the YIG IPF
 
  std::vector<API::MatrixWorkspace_sptr> m_outputWorkspaceGroup; 
};
 
} // namespace DataHandling
} // namespace Mantid