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LoadSQW2.h
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LoadSQW2.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 "MantidAPI/IFileLoader.h"
#include "MantidDataObjects/MDEvent.h"
#include "MantidDataObjects/MDEventWorkspace.h"
#include "MantidKernel/BinaryStreamReader.h"
#include "MantidKernel/FileDescriptor.h"
#include "MantidMDAlgorithms/DllConfig.h"
#include <fstream>
namespace Mantid {
// Forward declarations
namespace API {
class ExperimentInfo;
}
namespace Geometry {
class OrientedLattice;
}
namespace MDAlgorithms {
class MANTID_MDALGORITHMS_DLL LoadSQW2 : public API::IFileLoader<Kernel::FileDescriptor> {
public:
const std::string name() const override;
int version() const override;
const std::vector<std::string> seeAlso() const override { return {"LoadNXSPE", "SaveNXSPE"}; }
const std::string category() const override;
const std::string summary() const override;
int confidence(Kernel::FileDescriptor &descriptor) const override;
private:
/// Local typedef for
using SQWWorkspace = DataObjects::MDEventWorkspace<DataObjects::MDEvent<4>, 4>;
void init() override;
void exec() override;
void cacheInputs();
void initFileReader();
int32_t readMainHeader();
void throwIfUnsupportedFileType(int32_t sqwType);
void createOutputWorkspace();
void readAllSPEHeadersToWorkspace();
std::shared_ptr<API::ExperimentInfo> readSingleSPEHeader();
void cacheFrameTransforms(const Geometry::OrientedLattice &lattice);
void skipDetectorSection();
void readDataSection();
void skipDataSectionMetadata();
void readSQWDimensions();
std::vector<int32_t> readProjection();
std::vector<float> calculateDimLimitsFromData();
Geometry::IMDDimension_sptr createQDimension(size_t index, float dimMin, float dimMax, size_t nbins,
const Kernel::DblMatrix &bmat);
Geometry::IMDDimension_sptr createEnDimension(float umin, float umax, size_t nbins);
void setupBoxController();
void setupFileBackend(const std::string &filebackPath);
void readPixelDataIntoWorkspace();
void splitAllBoxes();
void warnIfMemoryInsufficient(int64_t npixtot);
size_t addEventFromBuffer(const float *pixel);
void toOutputFrame(coord_t *centers);
void finalize();
std::unique_ptr<std::ifstream> m_file;
std::unique_ptr<Kernel::BinaryStreamReader> m_reader;
std::shared_ptr<SQWWorkspace> m_outputWS;
uint16_t m_nspe = 0;
Kernel::DblMatrix m_uToRLU;
std::string m_outputFrame;
};
} // namespace MDAlgorithms
} // namespace Mantid