FakeMD.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2015 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 <vector>
 
#include "MantidAPI/IMDEventWorkspace.h"
#include "MantidDataObjects/DllConfig.h"
#include "MantidGeometry/IDTypes.h"
#include "MantidKernel/uniform_int_distribution.h"
 
namespace Mantid {
namespace DataObjects {
 
template <typename MDE, size_t nd> class MDEventWorkspace;
 
class MANTID_DATAOBJECTS_DLL FakeMD {
public:
  FakeMD(const std::vector<double> &uniformParams, const std::vector<double> &peakParams,
         const std::vector<double> &ellipsoidParams, const int randomSeed, const bool randomizeSignal);
 
  void fill(const API::IMDEventWorkspace_sptr &workspace);
 
private:
  void setupDetectorCache(const API::IMDEventWorkspace &workspace);
 
  template <typename MDE, size_t nd> void addFakePeak(typename MDEventWorkspace<MDE, nd>::sptr ws);
  template <typename MDE, size_t nd> void addFakeEllipsoid(typename MDEventWorkspace<MDE, nd>::sptr ws);
  template <typename MDE, size_t nd> void addFakeUniformData(typename MDEventWorkspace<MDE, nd>::sptr ws);
 
  template <typename MDE, size_t nd>
  void addFakeRandomData(const std::vector<double> &params, typename MDEventWorkspace<MDE, nd>::sptr ws);
  template <typename MDE, size_t nd>
  void addFakeRegularData(const std::vector<double> &params, typename MDEventWorkspace<MDE, nd>::sptr ws);
 
  detid_t pickDetectorID();
 
  //------------------ Member variables ------------------------------------
  std::vector<double> m_uniformParams;
  std::vector<double> m_peakParams;
  std::vector<double> m_ellipsoidParams;
  const int m_randomSeed;
  const bool m_randomizeSignal;
  mutable std::vector<detid_t> m_detIDs;
  std::mt19937 m_randGen;
  Kernel::uniform_int_distribution<size_t> m_uniformDist;
};
 
} // namespace DataObjects
} // namespace Mantid